Note: Descriptions are shown in the official language in which they were submitted.
CA 02559336 2006-09-08
Adjustable Tension Type of Sunshade Awning
Technical Field
The present utility model relates to a large-sized sunshade awning
for outdoor use, particularly, to an adjustable tension type of sunshade
awning.
Background Art
In general, the structure of a large-sized sunshade awning for
outdoor use is that a tarpaulin covers on a frame which stands on the
ground by means of four standing poles, so that it has a simple and fine
appearance, and the wind can blow through from all directions. The
drawback of the structure, however, is that it is difficult to stretch the
tarpaulin on the top frame because of the manner of attaching the
tarpaulin thereto and difficult to solve this problem even when the
tarpaulin losses its tension, resulting in the sunshade awning as a whole
losses its fine appearance while the using effect is affected.
Summary
The object of the present utility model is to provide an adjustable
tension type of sunshade awning capable of keeping the tarpaulin in
stretching state.
The technical scheme of the present utility model for achieving its
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object is an adjustable tension type of sunshade awning, the adjustable
tension type of sunshade awning comprises standing poles, standing pole
bases, top poles and a tarpaulin, characterized in that each of four top
poles is attached to a center joint at one end and to a standing pole at the
other end so as to form the structural frame, a stretching device is
provided at the end of the top pole which is attached to the standing pole,
the stretching device is provided with a latch hook, and a steel cable
passing through the hemmed edge of the tarpaulin is tied on the latch
hook.
Said stretching device comprises a stopping block, a sleeve, a
plugging end, a sliding block, and a locking screw, wherein the stopping
block is fixed in the top pole with the thread formed therein, the
plugging end is fixed to the outer end of the sleeve, the sleeve is
clearance-fitted in the top pole with a longitudinal groove formed in its
lower wall, the sliding block is fixed in the top pole and fitted to the
longitudinal groove of the sleeve, the locking screw is engaged with the
thread of the stopping block at its inward end and attached movably to
the plugging end at its outward end, a hexagon-socket is formed on the
outward end and a latch hook is formed in the plugging end.
In the structure where the locking screw can be attached movably to
the plugging end, the locking screw is inserted into a hole of the
plugging end, an annular groove is formed in the locking screw, and the
head of a fixing bolt of the plugging end which passes through the
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plugging end is engaged with the annular groove.
The advantageous effect of the present utility model is that when a
person finds the tarpaulin loses its tension, he can wrench the locking
screw in the stretching device to make the sleeve pull tautly the steel
cable outward in opposite direction in order to stretch the tarpaulin, and
the tension of the tarpaulin can be kept by means of the self-locking
action of the thread. The present utility model has the characteristics of
simple structure, easy adjustment and good integration.
Brief Description of Drawings
The present utility model will be described in detail in conjunction
with the following drawings and an embodiment.
Fig. l is the schematic view of the appearance of the present utility
model;
Fig.2 is the schematic view of the structural frame of the present
utility model;
Fig.3 is the partial-enlarged sectional view of the portion B in
Fig.2;
Fig.4 is the partial-enlarged sectional view of the portion A in Fig.1.
The reference numbers in these drawings are as follows:
1. standing pole
2. standing pole base
3. plugging end
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4. top pole
5. tarpaulin
6. center joint
7. sleeve
8. locking screw
9. sliding block
10. stopping block
11. fixing bolt of plugging end
12. fixing bolt of sliding block
13. fixing bolt of stopping block
14. steel cable
Detail Description of Preferred Embodiment
Referring to the drawings, the significant difference of the
adjustable tension type of sunshade awning of the present utility model
from the sunshade awning of the prior art in which the tarpaulin is fixed
by means of the lateral poles is that the structural frame and the tarpaulin
are attached with each other in tension by means of the steel cable and
the stretching device, so that the sunshade awning of the present utility
model has the characteristics of simple structure and good integration.
The adjustable tension type of sunshade awning comprises standing
poles 1, standing pole bases 2, top poles 4 and tarpaulin 5, wherein
standing pole bases 2 are attached to standing poles 1, each of four top
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poles 4 is attached to center joint 6 at one end and to standing pole 1 at
the other end so as to form the structural frame, the stretching device is
provided at the end of top pole 4 at which top pole 4 is attached to
standing pole 1, the stretching device is provided with a latch hook, steel
cable 14 passing through the hemmed edge of tarpaulin 5 is tied on these
latch hooks, and tarpaulin 5 is attached and fixed to the structural frame
by means of steel cable 14 and the latch hooks at the corners.
The stretching device comprises stopping block 10, sleeve 7,
plugging end 3, sliding block 9, and locking screw 8, wherein stopping
block 10 is fixed in top pole 4 with the thread formed therein, plugging
end 3 is fixed to the outer end of sleeve 7, sleeve 7 is clearance-fitted in
top pole 4 with a longitudinal groove formed in its lower wall, sliding
block 9 is fixed in top pole 4 and fitted to the longitudinal groove of
sleeve 7, locking screw 8 is engaged with the thread of stopping block
at its inward end and inserted into a hole of plugging end 3 at its
outward end, an annular groove is formed in locking screw 8, the head
of fixing bolt 11 of plugging end which passes through plugging end 3 is
engaged with the annular groove so as to form the structure where
locking screw 8 can be attached movably to plugging end 3, a
hexagon-socket is formed on the outward end of locking screw 8 and a
latch hook is formed in plugging end 3.
When the stretching device is used, locking screw 8 is wrenched
with the hex wrench which is mated with the hexagon-socket while the
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head of fixing bolt 11 of plugging end which passes through plugging
end 3 is engaged with the annular groove, stopping block 10 is fixed to
top pole 4 and can not be moved, and sliding block 9 is fixed to top pole
4 and fitted to the longitudinal groove, therefore, sleeve 7 can not rotate,
and locking screw 8 is forced to move outwardly, making sleeve 7 with
plugging end 3 move outwardly also, so that tarpaulin 5 is stretched by
steel cable 14 which is tied on the latch hook of plugging end and pulled
tautly in opposite direction so as to achieve the final object. The
adjustment scope for stretching tarpaulin 5 depends on the length of the
longitudinal groove in the lower wall of sleeve 7.
While the preferred embodiment of the present utility model is
described hereinbefore, it is apparent for those skilled in the art to make
variations and modifications without departure from the principle of the
present utility model, and the variations and modifications still belong to
the scope of the present utility model for which protection is sought.
