CN207383941U - A kind of backrest increases the folding seat of stretching structure supporting rod - Google Patents

Abstract

The utility model discloses a folding chair whose backrest is provided with telescopic structure support rods, which comprises a folding chair frame body and a seat surface. The folding chair frame body includes two main support rods, two seat surface support rods, two backrest support rods and armrests ; The main support rod includes a first connecting rod and a second connecting rod hinged to each other; One connecting rod is hinged and the other end is hinged to the second connecting rod on the same side; one end of the back support rod is hinged to the third connecting rod and the other end is hinged to the first connecting rod on the same side. For the integrity, stability and safety of the folding chair, one end of the armrest is hinged to the third connecting rod and the other end is movably connected to the hinge point of the first connecting rod and the second connecting rod on the same side. The utility model has the advantages of simple structure, firmness, strong stability and high safety, diversified functions, and flexible switching between sitting and lying.

Description

Folding chair with telescopic structural support rods added to the backrest

technical field

The utility model relates to a folding chair with a support rod of a telescopic structure added to the backrest.

Background technique

The folding chair is a lightweight, stackable seat, which is not only convenient to move, but also saves space. It is a convenient chair that is often used at home. It is easy to fold and has a thoughtful design for storage. It can be easily stored in a small space in a large house. When visitors come to visit or you need to chat outside temporarily to enjoy the moon, or go camping and barbecue, you can also use it Easy to fold, easy to move.

Existing folding chairs have various types and diverse structures, but the existing folding chairs have problems such as complex structure, weak structure, poor stability, low safety, and insufficient variety of functions.

Utility model content

The purpose of the utility model is to provide a folding chair with a telescopic structure support rod added to the backrest. The problems of complex structure, weak structure, poor stability, low safety, and insufficient diversification of functions of the existing folding chairs are solved.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A folding chair with telescopic structure support rods added to the backrest, comprising a folding chair frame body and a seat surface detachably connected to the folding chair frame body, the folding chair frame body including two foldable chairs respectively arranged on the left and right sides Main support rods, foldable seat support rods respectively connected to the two main support rods, two backrest support rods with one end hinged to the main support rods and the other end hinged to the seat surface support rods on the same side, and armrests; The back support rod is a telescopic rod.

Specifically, the two main support rods each include a first connecting rod and a second connecting rod hinged to each other; the two chair support rods each include a third connecting rod, a fourth connecting rod, a Five connecting rods, one end of the fourth connecting rod is hinged with the first connecting rod and the other end is hinged with the second connecting rod on the same side; one end of the back support rod is hinged with the upper end of the third connecting rod and the other end is connected with the The lower end of the first connecting rod on the same side is hinged; one end of the armrest is hinged to the third connecting rod and the other end is movably connected to the hinge point of the first connecting rod and the second connecting rod on the same side.

Further, the first connecting rod and the second connecting rod are hinged to each other through a first hinge. The third connecting rod, the fourth connecting rod and the fifth connecting rod are sequentially hinged through the second hinge.

In order to realize the flexible control of the folding chair, the armrest is provided with a first angle adjustment device, the first angle adjustment device includes a card slot, a first card tooth arranged on one side of the card slot, a first connecting rod and a second connecting rod. The hinge point of the rod is inserted into the slot, and a staple cooperating with the first tooth is provided on the side close to the first tooth. The edge of the slot is provided with a protrusion.

In order to adjust and fix the position of the footrest, a second angle adjustment device is also hinged between the second connecting rod and the fifth connecting rod, and the second angle adjusting device includes a first adjusting rod and a first adjusting rod sleeved on the first adjusting rod. The second adjusting rod outside one end, the first adjusting rod is hinged with the fifth connecting rod, the second adjusting rod is hinged with the second connecting rod, the second adjusting rod is provided with a saw-toothed second locking tooth, and the first adjusting rod is provided with The clamping column, the retractable twitching iron sheet and the spring, the clamping column and the retractable twitching iron sheet are connected together by the spring, and the clamping column cooperates with the second latching tooth.

Preferably, the two main support rods are connected to each other through more than one cross rod located under the chair surface. The cross bar improves the overall stability of the folding chair.

Preferably, the same direction ends of the two chair surface support rods are respectively connected together by a cross rod. The cross bar improves the overall stability of the folding chair.

Preferably, the seat surface is detachably connected with the seat surface support rod, and the seat surface is detachable and washable.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model is simple in structure, firm, strong in stability and high in safety, and has diversified functions. It is not only comfortable but also safe to switch between sitting and lying down flexibly. The folding operation is flexible and does not take up space after folding. The integrity, stability, and security of the system are very suitable for large-scale promotion and use.

Description of drawings

Fig. 1 is a structural schematic diagram 1 of the utility model-embodiment (recliner chair state).

Fig. 2 is a structural schematic diagram II (seat state) of the utility model-embodiment.

Fig. 3 is a structural schematic diagram of the first angle adjuster of the utility model-embodiment.

Fig. 4 is a schematic structural diagram of a second angle adjuster in an embodiment of the present invention.

Among them, the names corresponding to the reference signs:

1-main support rod, 11-first connecting rod, 12-second connecting rod, 13-first cross bar, 14-pin, 2-seat support rod, 21-third connecting rod, 22-fourth Connecting rod, 23-fifth connecting rod, 24-second cross bar, 3-back support rod, 4-armrest, 5-first angle adjustment device, 51-card slot, 52-first latch, 53-convex 6-the second angle adjustment device, 61-the first adjustment rod, 62-the second adjustment rod, 63-the second locking tooth, 64-the locking post.

Detailed ways

The utility model will be further described below in conjunction with the examples and accompanying drawings. The implementation of the utility model includes but not limited to the following examples.

Example

As shown in Figure 1-4, a folding chair with telescopic structure support rods added to the backrest includes a folding chair frame body and a seat surface detachably connected to the surface of the folding chair frame body. The main support rods 1 on both sides, the seat surface support rods 2 connected to the two main support rods respectively, two backrest support rods 3 whose one end is hinged with the main support rods and the other end is hinged with the seat surface support rods on the same side, and armrests4.

The above structure is specifically as follows: the two main support rods 1 are composed of a first connecting rod 11 and a second connecting rod 12 which are hinged to each other through a first hinge, and the same direction ends of the two main supporting rods 1 are respectively passed through a first connecting rod. The crossbars 13 are connected together. In this embodiment, the first crossbar 13 and the main support rod are formed at one time to improve the overall stability of the folding chair.

The two chair surface support rods 2 are composed of the third connecting rod 21, the fourth connecting rod 22, and the fifth connecting rod 23 which are sequentially hinged by the second hinge, and the same direction ends of the two chair surface support rods 2 respectively pass through A second cross bar 24 is connected together. In this embodiment, the second cross bar 24 and the seat surface support rod are formed at one time to improve the overall stability of the folding chair. Two third connecting rods 21 and the corresponding seat surface are formed As for the backrest part, the two fourth connecting rods 22 and the corresponding seat surface form the cushion part, and the two fifth connecting rods 23 and the corresponding seat surface form the footrest part. One end of the fourth connecting rod 22 is hinged to the upper end of the first connecting rod 11 , and the other end of the fourth connecting rod 22 is hinged to the second connecting rod 12 on the same side.

One end of the back support rod 3 is hinged with the end of the third connecting rod 21, and the other end of the back support rod 3 is hinged with the lower end of the first connecting rod 11 on the same side. In this embodiment, the back support rod 3 is telescopic. Rod, the effect of back support bar 3 is to increase the integrity, firmness, safety of this folding chair, when folding chair is at different angles, this back support bar can change angle along with up and down.

One end of the armrest 4 is hinged with the middle part of the third connecting rod 21, and the other end of the armrest 4 is movably connected with the hinge point of the first connecting rod 11 and the second connecting rod 12 on the same side, and this end of the armrest 4 is provided with a first Angle adjustment device 5, the first angle adjustment device is arranged on the back of the armrest, including a card slot 51, a sawtooth-shaped first card tooth 52 located on one side of the card slot 51, the top of the first hinge is embedded in the card slot and close to the second One side of the first locking tooth is provided with a columnar staple 14 matching the first locking tooth, and a protrusion 53 is provided on the edge of the locking slot to prevent the first hinge from falling off.

The principle of the first angle adjusting device 5 is: when the armrest 4 is lifted upwards, the staple 14 slides out from the position of the first locking tooth 52 to the edge of the protrusion 53 at the bottom of the slot 51, and at this time, the armrest 4 is moved forward or backward. Move back, make staple 14 enter the front or back one tooth position of draw-in groove 51, put down handrail 4 again, staple 14 snaps in the first locking tooth 52, realizes the adjustment of angle and fixation.

In order to realize the adjustment and fixation of the footrest position, the folding chair of this embodiment also includes a second angle adjustment device 6, one end of the second angle adjustment device is hinged with the middle and lower end of the second connecting rod 12, and the other end of the second angle adjustment device One end is hinged with the fifth connecting rod 23 on the same side; the second angle adjusting device 6 includes a first adjusting rod 61 and a second adjusting rod 62 sleeved outside one end of the first adjusting rod 61, the first adjusting rod 61 and the second adjusting rod 61 The five connecting rods 23 are hinged, the second adjusting rod 62 is hinged with the second connecting rod 12, the second adjusting rod 62 is provided with a serrated second latch 63, and the first adjusting rod 61 is provided with the second latch 63 to match The clamping post 64 is connected together with the internal retractable twitching iron sheet with a spring.

The principle of the second angle adjusting device 6 is: when the iron sheet twitches along the sawtooth direction, the clamping column 64 also slides upwards thereupon, and compresses the spring. Pressing and spring rebound pushes the clamping post 64 between the two clamping teeth to complete the adjustment and fixation of an angle, and the number of angle gears is consistent with the number of clamping teeth.

In order to realize the overall stability of the folding chair, the two main support rods 1 are also connected to each other through more than one third cross-bar located below the chair surface.

In this embodiment, a pillow is also provided on the seat surface of the backrest part, and the seat surface and the seat surface support bar 2 are detachably connected together, and the seat surface is detachable and cleanable.

According to above-mentioned embodiment, just can realize the utility model well. It is worth noting that, based on the premise of the above-mentioned structural design, in order to solve the same technical problem, even if some insubstantial changes or embellishments are made on the utility model, the essence of the technical solution adopted is still the same as that of the utility model. same, so it should also be within the protection scope of the present utility model.

Claims (10)

1. A folding chair with telescopic structure support rods added to the backrest, comprising a folding chair frame body and a seat surface detachably connected to the folding chair frame body, characterized in that, the folding chair frame body includes two respectively arranged on the left and right Foldable main support rods (1) on both sides, foldable chair surface support rods (2) respectively connected to the two main support rods, one end of the two main support rods is hinged and the other end is connected to the chair on the same side The backrest support rod (3) hinged by the surface support rod, and the armrest (4); the backrest support rod is a telescopic rod. 2. a kind of backrest according to claim 1 increases the folding chair of telescopic structure support rod, it is characterized in that, two described main support rods all comprise mutually hinged first connecting rod (11) and second connecting rod ( 12); Two described chair surface support rods all comprise the 3rd connecting rod (21), the 4th connecting rod (22), the 5th connecting rod (23) that are hinged in sequence, and one end of the 4th connecting rod is hinged with the first connecting rod And the other end is connected with the second connecting rod on the same side; One end of the back support rod is hinged to the upper end of the third connecting rod and the other end is hinged to the lower end of the first connecting rod on the same side; One end of the armrest is hinged to the third connecting rod and the other end is movably connected to the hinge point of the first connecting rod and the second connecting rod on the same side. 3 . The folding chair with a telescopic structural support rod added to the backrest according to claim 2 , wherein the first connecting rod and the second connecting rod are hinged to each other through a first hinge. 4 . 4. A folding chair with a telescopic structural support rod added to the backrest according to claim 2, wherein the third connecting rod, the fourth connecting rod and the fifth connecting rod are sequentially hinged through the second hinge. 5. A folding chair with a telescopic structure support rod added to the backrest according to claim 2, wherein the armrest is provided with a first angle adjustment device (5), and the first angle adjustment device includes a card slot (51 ), the first locking tooth (52) located on one side of the slot, the hinge point of the first connecting rod and the second connecting rod is embedded in the slot and on the side close to the first locking tooth is provided with the first locking tooth Staples (14). 6 . A folding chair with a telescopic structure support rod added to the backrest according to claim 5 , wherein a protrusion ( 53 ) is provided on the edge of the draw-in slot. 7 . 7. A folding chair with a telescopic structure support rod added to the backrest according to claim 2, characterized in that a second angle adjustment device (6) is also hinged between the second connecting rod and the fifth connecting rod, The second angle adjusting device comprises a first adjusting rod (61) and a second adjusting rod (62) sleeved outside one end of the first adjusting rod, the first adjusting rod is hinged to the fifth connecting rod, the second adjusting rod is connected to the fifth connecting rod The two connecting rods are hinged, the second adjusting rod is provided with a serrated second locking tooth (63), the first adjusting rod is provided with a clamping column (64), a retractable twitching iron sheet and a spring, and the clamping column and the retractable twitching The iron sheets are connected together by a spring, and the clamping column is matched with the second clamping tooth. 8 . A folding chair with a telescopic structural support rod added to the backrest according to claim 2 , wherein the two main support rods are connected to each other by more than one cross bar located below the chair surface. 9. A folding chair with telescopic structural support rods added to the backrest according to claim 2, characterized in that, the ends of the two seat surface support rods in the same direction are respectively connected together by a cross bar. 10 . A folding chair with a telescopic structural support rod added to the backrest according to claim 2 , wherein the seat surface and the seat surface support rod are detachably connected together. 11 .