Note: Descriptions are shown in the official language in which they were submitted.
Safety-Lock Structure for Packaging Box
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] The present application is based on the Chinese Patent Application No.
201822071631.9 filed on December 10, 2018, and claims its priority.
[0002] TECHNICAL FIELD
[0003] The present application relates to the field of container technology,
and more
particularly to a safety-lock structure for a packaging box.
[0004] BACKGROUND
[0005] The existing containers generally comprise a container body and a cover
body
covering the container body. After opening the cover body, the liquid or some
scattered particles filled in the container can be poured out; when the
container is
filled with small or corrosive particles, the container can be easily opened
by children,
hence causes ingestion by mistake.
[0006] SUMMARY OF THE APPLICATION
[0007] An object of the present application is to provide a safety-lock
structure for a
packaging box by solving the disadvantages of the prior art.
[0008] A technical solution of the present application is:
[0009] A safety-lock structure for packaging box includes a cover body and a
container body with a neck finish, the neck finish has an open mouth, an outer
wall of
the neck finish is provided with external threads, an inner wall of the cover
body is
provided with internal threads in thread connection with the external threads;
a side
wall of the cover body is provided with at least two pressing portions, an
inner wall of
each pressing portions is provided with a flexible snap, an upper end surface
of the
container body is provided with a blocking portion that corresponds to each
flexible
snap. The flexible snaps and the blocking portions are engaged with each other
after
the cover body and the container body are screwed tightly to each other.
[0010] In a preferred solution, the surface of the cover body is recessed
inward and
provided with recessed portions, and the inner side wall of the recessed
portion forms
the pressing portion, and the flexible snap is disposed on the inner side wall
of the
recessed portion and is close to the center of the cover body.
[0011] In a preferred solution, a slit groove is provided between the bottom
part of
the recessed portion and the pressing portion.
[0012] In a preferred solution, each flexible snap includes a base portion,
and a
flexible block disposed on a lower surface of the base portion and adjacent to
a side
of the base portion; a notch snap groove is formed between the flexible block
and the
other side of the base portion, the blocking portion and the notch snap groove
are
engaged with each other after the cover body and the container body are
screwed
tightly to each other.
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Date Recue/Date Received 2021-05-14
[0013] In a preferred solution, each flexible block is provided with a guiding
piece
which is in the same direction as the rotating direction of the internal
threads. When
the cover body and the container body are being screwed tightly together, the
blocking
portion slides along the guiding piece and snaps into the notch snap groove.
[0014] In a preferred solution, the number of the flexible snaps is 2, and the
2 flexible
snaps are disposed opposite to each other on the inner wall of the cover body.
[0015] In combination with the above technical solutions, the present
application has
the following beneficial effects: when the cover body needs to be opened, it
requires
to hold the container body by one hand, and press the pressing portions by the
other
hand, so that the flexible snaps and the blocking portions are separated from
each
other, then rotate the cover body at the same time to open the cover body. Due
to the
limitations of the size of children's hands, children are not able to press
the two
pressing portions with one hand, thus they cannot open the cover body,
therefore, it
can prevent children from eating the contents of the container body; during
the
process of tightening the cover body and the container body, the blocking
portions
slide into the notch snap grooves and are engaged with the notch snap grooves,
so
that the cover body stably covers the container body.
[0016] The above description is only an overview of the technical solutions of
the
present application, and the technical means of the present application can be
more
clearly understood, and can be implemented in accordance with the contents of
the
specification, and the above and other objects, features and advantages of the
present
application can be more clearly understood by the detailed preferred
embodiments
described hereinafter, with reference to the accompanying drawings.
[0017] BRIEF DESCRIPTION OF THE DRAWINGS
[0018] FIG. 1 is a perspective view of the present application when the cover
body
and the container body are opened;
[0019] FIG. 2 is a perspective view of the container body of the present
application;
[0020] FIG. 3 is a first perspective view of the cover body of the present
application;
[0021] FIG. 4 is a second perspective view of the cover body of the present
application;
[0022] FIG. 5 is a partial enlarged view of part A in FIG. 4;
[0023] FIG. 6 is a cross-sectional view of the present application;
[0024] FIG. 7 is a partial enlarged view of part A in FIG. 6.
[0025] DETAILED DESCRIPTION OF THE SPECIFIC EMBODIMENTS
[0026] To clarify the idea and purpose of the present application, the present
application will be further described with reference to the accompanying
drawings and
specific embodiments.
[0027] As shown in FIG. 1 to FIG. 7, a safety-lock structure for a packaging
box
includes a cover body 10 and a container body 20 with a neck finish 21, the
neck finish
21 has an opening 22 , the outer wall of the neck finish 21 is provided with
external
threads; the inner wall of the cover body 10 is provided with internal threads
which
are in screw connection with the external threads, and the side wall is
provided with
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Date Recue/Date Received 2021-05-14
at least two pressing portions 13; the inner wall of each pressing portion 13
is provided
with a flexible snap 11. The upper end surface of the container body 20 is
provided
with a blocking portion 23 that corresponds to each flexible snap 11. When the
cover
body 10 and the container body 20 are screwed tightly to each other, the
flexible snaps
11 are engaged with the blocking portions 23.
[0028] As shown in FIG. 1 to FIG. 7, when the cover body 10 needs to be
opened, it
requires to press the pressing portions 13 , so that the flexible snaps 11 and
the
blocking portions 23 are separated from each other, and rotate the cover body
10 at
the same time to open the cover body 10. Due to the limitations of children's
strength
and the size of their hands, children cannot open the cover body 10, hence
children
can be prevented from ingesting the food in the container body 20; during the
tightening of the cover body 10 and the container body 20, the flexible snaps
11 and
the blocking portions 23 are engaged with each other, so that the cover body
10 and
the container body 20 are stably closed.
[0029] As shown in FIG. 1 to FIG. 7, the surface of the cover body 10 is
recessed
inward and provided with recessed portions 12, and the inner side wall of the
recessed
portion 12 forms the pressing portion 13, and the pressing portion 13 is
adjacent to
the center of the cover body 10, the recessed portions 12 are adjacent to the
lower
side of the cover body 10. The cover body 10, the pressing portions 13 and the
flexible
snaps 11 are integrally formed, and the blocking portions 23 are integrally
formed with
the container body 20.
[0030] As shown in FIG. 1 to FIG. 7, a slit groove 14 is provided between the
bottom
portion 15 of the recessed portion 12 and the pressing portion 13, so that the
pressing
portion 13 has certain elasticity, facilitating the flexible snap 11 and the
blocking
portion 23 to be engaged with or separated from each other.
[0031] As shown in FIG. 1 to FIG. 7, each flexible snap 11 includes a base
portion 111,
and a flexible block 112 disposed on a lower surface of the base portion 111
and
adjacent to one side of the base portion 111. The base portion 111 is fixedly
connected
to the inner wall of the pressing portion 13; a notch snap groove 113 is
formed
between the flexible block 112 and the other side of the base portion 111. The
notch
snap groove 113 is in an L shape. When the cover body 10 and the container
body 20
are screwed tightly to each other, the blocking portions 23 slide into the
notch snap
grooves 113, hence the blocking portions 23 are engaged with the notch snap
grooves
113. Preferably, the flexible blocks 112 are provided with guiding pieces 114
which are
in the same direction as the rotating direction of the internal threads. The
guiding
pieces 114 have an arc-shaped structure. When the cover body 10 and the
container
body 20 are being screwed tightly together, the blocking portions 23 slide
along the
guiding pieces 114 and snap into the notch snap grooves 113.
[0032] As shown in FIG. 1 to FIG. 7, the number of the pressing portions 13 is
two,
and the two pressing portions 13 are disposed opposite to each other on the
side wall
of the cover body 10; the number of the flexible snaps 11 is two, and the two
flexible
snaps 11 are disposed opposite to each other on the inner wall of the cover
body 10.
The number of the blocking portions 23 is two, and the two blocking portions
23 are
disposed opposite to each other on the inner wall of the cover body 10. When
the
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Date Recue/Date Received 2021-05-14
cover body 10 needs to be opened, the pressing portions 13 are simultaneously
pressed by the thumb and the middle finger, so that the blocking portions 23
are
separated from the notch snap grooves 113, and at the same time the cover body
10
is rotated, so that the cover body 10 can be opened. Due to the limitations of
children's
strength and the size of their hands, children cannot open the cover body 10,
hence
can be prevented from ingesting the food in the container body 20; during the
tightening of the cover body 10 and the container body 20, the flexible snaps
11 and
the blocking portions 23 are engaged with each other, so that the cover body
10 and
the container body 20 are stably closed.
[0033] The above is a specific embodiment of the present application. It
should be
noted that those skilled in the art can also make improvements and refinements
without departing from the principle of the present application. These
improvements
and refinements are also regarded as the scope of protection for the present
application.
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