CN215076908U - Folding chair with lock catch - Google Patents

Abstract

The utility model discloses a folding chair with lock catch, which comprises a chair frame main body and a sliding lock catch device, wherein the chair frame main body comprises two front support tubes and two back tubes which are arranged in parallel at the front and the back, support frames which are arranged in four directions of the front, the back, the left and the right of the chair frame main body and a handrail tube which is arranged in front of the back tubes, the support frames are mutually crossed and hinged by two cross rods to form an X shape, one end of the handrail tube is connected with the back tubes through the sliding lock catch device, and the other end of the handrail tube is connected with the front support tubes through a connecting piece; the sliding locking device comprises a sliding pipe and a lock catch, the sliding pipe is arranged on one side of the backrest pipe through a first connecting seat, and the lock catch is sleeved on the sliding pipe; the utility model discloses with the handrail design for a whole root rigidity tubular product, form a rigidity holding surface, the handrail face promptly, effectively solve the shortcoming that flexible handrail easily sinks and life is short.

Description

Folding chair with lock catch

Technical Field

The utility model belongs to the technical field of folding chair manufacturing technology and specifically relates to a take folding chair of hasp.

Background

At present, along with the increasingly rich entertainment life of people, the demand of folding and portable products is higher and higher. Because the folding chair is small and portable after being folded, people often carry the folding chair when traveling outdoors. However, most of existing folding chairs are not provided with armrests, or the armrests are made of flexible fabrics and are not supported by rigid materials, so that the comfort level of the hand-holding position is low when the folding chair is used, the flexible armrests are easy to collapse, and the service life is short.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a take folding chair of hasp improves the support of original technical scheme handrail no rigid material, leads to the handrail face easily to sink, influences use comfort, short service life scheduling problem.

In order to achieve the above purpose, the technical scheme of the utility model is that: a folding chair with a lock catch comprises a chair frame main body and a sliding lock catch device, wherein the chair frame main body comprises two front support tubes and two back tubes which are arranged in parallel from front to back, support frames arranged in four directions of the chair frame main body from front to back and from left to right, and handrail tubes arranged in front of the back tubes, the support frames are mutually crossed and hinged in pairs by cross rods to form an X shape, one end of each handrail tube is connected with the back tube through the sliding lock catch device, and the other end of each handrail tube is connected with the front support tube through a connecting piece; the sliding locking device comprises a sliding pipe and a lock catch, the sliding pipe is installed on one side of the backrest pipe through the first connecting seat, and the lock catch is sleeved on the sliding pipe.

The improved structure of the handle is characterized in that the lock catch comprises a sliding part, an inner sliding block arranged in the sliding part and a compression spring arranged between the sliding part and the inner sliding block, wherein a first through hole used for sleeving the sliding pipe, a second through hole used for installing the inner sliding block and an open slot used for being hinged with the handle pipe are formed in the sliding part, a third through hole used for sleeving the sliding pipe is formed in the inner sliding block, and the first through hole and the third through hole are located on the same vertical line when the inner sliding block is arranged in the sliding part.

Still further, be close to compression spring one side on the interior slider and be equipped with the second bump, compression spring cup joints on the second bump, be close to compression spring one side on the third through-hole and be equipped with first bump, be equipped with on the slip tube with first bump matched with locating hole, the slider removes towards the direction of keeping away from the slider in the recovery promotion of compression spring when the hasp slides to the locating hole along the slip tube to make first bump card go into the locating hole. One end of the handrail is fixed through the structure.

The improved structure is characterized in that the backrest tube is sleeved with two first connecting seats, the sliding tube is connected between the two first connecting seats and parallel to the backrest tube, the first connecting seats are provided with a blind hole and a fourth through hole, the backrest tube is sleeved on the fourth through hole, and the sliding tube is sleeved on the blind hole.

The improved folding chair is characterized in that the connecting piece comprises a first connecting piece and a second connecting piece, the bottom surface of the first connecting piece is provided with an interface, the side surface of the first connecting piece is provided with a boss, the rear part of the second connecting piece is provided with an interface, the side surface of the first connecting piece is provided with a concave surface matched with the boss, the boss and the concave surface are matched to form a rotating mechanism with the boss as an axial point, and when the folding chair is folded, the second connecting piece can rotate.

Still further, a seat front inner telescopic pipe is arranged in the seat front supporting pipe, and the first connecting piece is sleeved at the upper end of the seat front inner telescopic pipe. The telescopic pipe is favorable for folding and storing the folding chair.

Still further, the second connecting piece is sleeved at one end of the handrail tube.

The improved structure is characterized in that a second connecting seat is sleeved on the front supporting tube and the back tube, foot pads are arranged at the lower ends of the front supporting tube and the back tube, the upper ends of the supporting frames are hinged to the second connecting seat, and the lower ends of the supporting frames are hinged to the foot pads. The foot pad plays the effect of connecting each part on the one hand, and on the other hand can improve folding chair's stability.

In a further improvement, the sliding tube is provided with a cushion column to limit the displacement of the lock catch.

In a further improvement, the armrest tubes are arranged in front of the backrest tube in parallel.

The utility model designs the handrail as a whole rigid pipe to form a rigid supporting surface, namely a handrail surface, thereby effectively solving the defects of easy collapse and short service life of the flexible handrail; and set up the locking device that slides in the junction of handrail and back pipe, thereby make the locking device that slides fixed thereby make the handrail stable after folding chair expandes on the one hand, on the other hand when the chair needs to be folded, unblock locking device, locking device slides downwards for the handrail pipe rotates, realizes that the chair is folded.

Drawings

Fig. 1 is an expanded schematic view of an embodiment of the present invention;

fig. 2 is a schematic semi-expanded view of an embodiment of the present invention;

fig. 3 is a schematic view of the folding of an embodiment of the present invention;

fig. 4 is a schematic view of a first connector of the present invention;

fig. 5 is a schematic view of the lock of the present invention;

fig. 6 is a schematic view of the sliding member of the present invention;

fig. 7 is a schematic view of the inner slide of the present invention;

FIG. 8 is an enlarged view at A of FIG. 2;

fig. 9 is a schematic view of a first connector of the present invention;

fig. 10 is a schematic view of a second connector according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 3, a folding chair with a lock catch comprises a chair frame main body and a sliding lock catch device 1, wherein the chair frame main body comprises two front support tubes 2 and two back tubes 3 which are arranged in parallel in the front and back direction, support frames 4 arranged in the front, back, left and right directions of the chair frame main body and a handrail tube 5 arranged in front of the back tube 3, the support frames 4 are mutually crossed and hinged in pairs by cross rods to form an X shape, a second connecting seat 6 is sleeved on the front support tubes 2 and the back tubes 3, foot pads 7 are arranged at the lower ends of the front support tubes 2 and the back tubes 3, the upper end of each support frame 4 is hinged with the second connecting seat 6, and the lower end of each support frame is hinged with the foot pads 7; the armrest tube 5 is arranged at the outer side of the backrest tube 3 in parallel, one end of the armrest tube 5 is connected with the backrest tube 3 through the sliding locking device 1, and the other end is connected with the front supporting tube 2 of the seat through the connecting piece 8; the sliding locking device 1 comprises a sliding tube 11 and a lock catch 12, the sliding tube 11 is installed on one side of the backrest tube 3 through two first connecting seats 9 sleeved on the backrest tube 3, and the lock catch 12 is sleeved on the sliding tube 11.

As shown in fig. 4, the first connecting seats 9 are provided with a blind hole 91 and a fourth through hole 92, the backrest tube 3 is sleeved on the fourth through hole 92, and the sliding tube 11 is sleeved on the blind hole 91, so that the sliding tube 11 is fixed between the two first connecting seats 9 and the sliding tube 11 is parallel to the backrest tube 3.

As shown in fig. 5, the lock catch 12 includes a slider 121, an inner slider 122 disposed inside the slider 121, and a compression spring 123 disposed between the slider 121 and the inner slider 122. As shown in fig. 6, the sliding member 121 is provided with a first through hole 1211 for engaging with the sliding tube 11, a second through hole 1212 for installing the inner sliding block 122, and an opening groove 1213 for hinging with the handle tube 5, wherein the first through hole 1211 is circular to fit the sliding tube 11. As shown in fig. 7, a third through hole 1221 for sleeving the sliding tube 11 is formed in the inner sliding block 122, the third through hole 1221 is rectangular, so that the inner sliding block 122 moves left and right in the sliding member 121, the inner sliding block 122 is placed in the sliding member 121 from the second through hole 1212 of the sliding member 121, and the first through hole 1211 and the third through hole 1221 are located on the same vertical line after being installed;

a second salient point 1222 is arranged on one side, close to the compression spring 123, of the inner sliding block 122, the compression spring 123 is sleeved on the second salient point 1222, and a first salient point 1223 is arranged on one side, close to the compression spring 123, of the third through hole 1221. As shown in fig. 8, the sliding tube 11 is provided with a positioning hole 111 matching with the first protruding point 1223, when the lock catch 12 slides along the sliding tube 11 to the positioning hole 111, the compression spring 123 restores to push the inner slider 122 to move in a direction away from the slider 121, so that the first protruding point 1223 is clamped into the positioning hole 111, thereby fixing the handrail tube 5; the rivet-fixed spacer 112 of the slide tube 11 also serves to limit the displacement of the lock 12.

As shown in fig. 9 and 10, the connecting member 8 includes a first connecting member 81 and a second connecting member 82, the bottom surface of the first connecting member 81 is provided with an interface (not shown), the side surface is provided with a boss 811, the rear of the second connecting member 82 is provided with an interface 821, the side surface is provided with a concave 822 matched with the boss 811, and the boss 811 and the concave 822 are matched to form a rotating mechanism with the boss 811 as an axis point; the extension pipe 21 is equipped with before the seat in the preceding stay tube 2 of seat, and first connecting piece 81 cup joints the extension pipe 21 upper end in the preceding seat, and second connecting piece 82 cup joints in handrail pipe 5 one end, and when folding, second connecting piece 82 drives handrail pipe 5 and rotates around first connecting piece 81, realizes folding.

The above is only a preferred embodiment of the present invention, and all changes that can be made by those skilled in the art according to the appended claims will fall within the scope of the present invention.

Claims (10)

1. The utility model provides a take folding chair of hasp which characterized in that: the chair comprises a chair frame main body and a sliding locking device, wherein the chair frame main body comprises two front supporting tubes and two back tubes which are arranged in parallel from front to back, supporting frames which are arranged in four directions of the chair frame main body from front to back and from left to right, and a handrail tube which is arranged in front of the back tube, the supporting frames are mutually crossed and hinged in pairs by cross rods to form an X shape, one end of the handrail tube is connected with the back tube through the sliding locking device, and the other end of the handrail tube is connected with the front supporting tube through a connecting piece; the sliding locking device comprises a sliding pipe and a lock catch, the sliding pipe is installed on one side of the backrest pipe through the first connecting seat, and the lock catch is sleeved on the sliding pipe.

2. The folding chair with the lock catch as claimed in claim 1, wherein: the hasp includes the slider, locates the interior slider in the slider and locates the compression spring between slider and the interior slider, be equipped with on the slider and be used for cup jointing the first through-hole of sliding tube, the second through-hole of slider in the installation and be used for with handrail tube articulated open slot, be equipped with the third through-hole that is used for cup jointing the sliding tube on the interior slider, first through-hole and third through-hole are located same vertical line when interior slider is arranged in the slider.

3. The folding chair with the lock catch as claimed in claim 2, wherein: be close to compression spring one side on the interior slider and be equipped with the second bump, compression spring cup joints on the second bump, be close to compression spring one side on the third through-hole and be equipped with first bump, be equipped with on the slip pipe with first bump matched with locating hole, the slider removes towards the direction of keeping away from the slider in the recovery promotion of compression spring when the hasp slides to the locating hole along the slip pipe to make first bump card go into the locating hole.

4. The folding chair with the lock catch as claimed in claim 1, wherein: the utility model discloses a backrest tube, including backrest tube, sliding tube, back pipe, first connecting seat, sliding tube, back pipe, sliding tube, the last two first connecting seats that cup joint of back pipe, the sliding tube is connected between two first connecting seats and the sliding tube is on a parallel with the back pipe, be equipped with a blind hole and fourth through-hole on the first connecting seat, cup joint the back pipe on the fourth through-hole, cup joint the sliding tube on the blind hole.

5. The folding chair with the lock catch as claimed in claim 1, wherein: the connecting piece comprises a first connecting piece and a second connecting piece, wherein the bottom surface of the first connecting piece is provided with an interface, the side surface of the first connecting piece is provided with a boss, the rear part of the second connecting piece is provided with an interface, the side surface of the first connecting piece is provided with a concave surface matched with the boss, the boss and the concave surface are matched to form a rotating mechanism taking the boss as an axis point, and when the connecting piece is folded, the second connecting piece can rotate.

6. The folding chair with the lock catch as claimed in claim 5, wherein: a seat front inner telescopic pipe is arranged in the seat front supporting pipe, and the first connecting piece is sleeved at the upper end of the seat front inner telescopic pipe.

7. The folding chair with the lock catch as claimed in claim 5, wherein: the second connecting piece is sleeved at one end of the handrail tube.

8. The folding chair with the lock catch as claimed in claim 1, wherein: the support frame is characterized in that a second connecting seat is sleeved on the front support tube and the back tube, a foot pad is arranged at the lower ends of the front support tube and the back tube, the upper end of the support frame is hinged to the second connecting seat, and the lower end of the support frame is hinged to the foot pad.

9. The folding chair with the lock catch as claimed in claim 1, wherein: the sliding tube is provided with a pad column to limit the displacement of the lock catch.

10. The folding chair with the lock catch as claimed in claim 1, wherein: the handrail tubes are arranged in parallel in front of the backrest tube.

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