CN210902217U - Quick locking structure for pvc folding chair - Google Patents

Abstract

The utility model relates to a technical field is made to furniture, specifically is a pvc folding chair is with quick dead lock structure, including the folding chair body, the folding chair body comprises first folding leg, second folding leg and seat, and the length of first folding leg is greater than the length of second folding leg, and just first folding leg and the folding leg of second all articulate on the side of seat, are equipped with the connecting piece between first folding leg and the folding leg of second, and the connecting piece is located the top of seat, and beneficial effect is: the utility model discloses be provided with the first body of rod and the second body of rod between first folding leg and the folding leg of second, when folding chair was packed up, the second body of rod inserted completely inside the first body of rod, the first body of rod then near on the folding leg of second, when folding chair expandes, the first body of rod and the second body of rod keep the horizontality, and the inserted bar inserts inside the slot, the total length of the first body of rod and the second body of rod is fixed, folding chair is locked and can't be packed up easily, user's use has been made things convenient for.

Description

A quick locking structure for a pvc folding chair

technical field

The utility model relates to the technical field of furniture manufacturing, in particular to a quick locking structure for a PVC folding chair.

Background technique

PVC folding chair is a common type of chair in life. It uses PVC material to make seat cushion and backrest, which is not only light and durable, but also easy to carry after folding, so it is very popular among users. Although the existing folding chairs are very convenient to unfold and fold, there is a common defect, that is, the lack of a locking structure. When the user wants to directly move the unfolded chair, the backrest of the chair must be moved with two hands respectively. Grab it at the same time as the seat, otherwise every time you drag it, the chair will be retracted unconsciously, causing unnecessary trouble to the user. In addition, the supporting structure of the existing folding chair is not rich, and the firmness of the unfolded folding chair is not good. Even on the flat ground, the folding chair itself is prone to shaking. Therefore, the utility model proposes a pvc folding chair. The quick locking structure for chairs is used to solve the above problems.

Utility model content

The purpose of this utility model is to provide a quick locking structure for a pvc folding chair to solve the problems raised in the above background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a quick locking structure for a pvc folding chair, comprising a folding chair body, the folding chair body is composed of a first folding leg, a second folding leg and a seat, The length of the first folding leg is greater than the length of the second folding leg, and both the first folding leg and the second folding leg are hinged on the side edge of the seat, and there is a connection between the first folding leg and the second folding leg The connecting piece is located above the seat, and both ends of the connecting piece are hinged on the first folding leg and the second folding leg, respectively, and a second rod body is hinged on one side of the bottom of the first folding leg, The bottom side of the second folding leg is hinged with a first rod body, the height of the first rod body and the second rod body are the same, and the first rod body is a hollow structure, and the top of the first rod body is welded with an installation cavity, The second rod body is inserted into the interior of the first rod body, and a slot is set on the top side of the second rod body, an insertion rod is arranged inside the installation cavity, and the inner end of the insertion rod penetrates the first rod body and is embedded In the slot, the outer side of the insertion rod is sleeved with a fixed disk, the top of the inserted rod is provided with a pull ring, the fixed disk and the inserted rod are integrally formed, and the top of the fixed disk is provided with a compression spring, the compression The spring is sleeved on the outside of the insertion rod, and the upper and lower ends of the compression spring are respectively fitted with the inner top end of the installation cavity and the upper surface of the fixing plate.

Preferably, a rotating member is hinged on one side of the top of the first rod body, a notch is formed on the outer side of the second folding leg, and the inner side of the rotating member is rotatably connected to a roller, and the roller is embedded in the notch.

Preferably, an elastic cord is provided inside the first rod body, and two ends of the elastic cord are respectively fixedly connected to the inner end of the first rod body and the inner end of the second rod body.

Preferably, the top of the first folding leg is provided with a backrest, the backrest is a plate-like structure, and two sides of the backrest are respectively fixedly connected to the two first folding legs on both sides of the seat.

Preferably, the bottom of the first folding leg is provided with a first connecting rod, the bottom of the second folding leg is provided with a second connecting rod, and both ends of the first connecting rod and the second connecting rod are respectively welded and fixed On the two first folded legs on either side of the seat.

Preferably, the top end of the insertion rod is vertically upward and penetrates the installation cavity, the pull ring is located outside the installation cavity, and the pull ring and the insertion rod are integrally formed.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The utility model is provided with a first rod body and a second rod body between the first folding leg and the second folding leg. When the folding chair is folded, the second rod body is completely inserted into the first rod body, and the first rod body is close to the first rod body. On the second folding leg, when the folding chair is unfolded, the first rod body and the second rod body are kept in a horizontal state, and the insertion rod is inserted into the slot, the total length of the first rod body and the second rod body is fixed, and the folding chair is locked. It cannot be easily put away, which is convenient for users to use;

2. The utility model is provided with a first rod body and a second rod body at the bottom of the folding chair for support, because the total length of the first rod body and the second rod body is fixed, and the connection between the first rod body and the second folding leg is provided with a rotating mechanism. Therefore, compared with the traditional folding chair, the utility model has more supporting structures and better stability.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the enlarged schematic diagram of the structure of the utility model A;

FIG. 3 is a schematic diagram of the structure of the first folding leg of the present invention.

In the figure: 1 folding chair body, 2 first folding leg, 3 second folding leg, 4 seat, 5 connecting piece, 6 backrest, 7 first rod body, 8 second rod body, 9 installation cavity, 10 insertion rod, 11 slot, 12 fixed plate, 13 compression spring, 14 pull ring, 15 elastic cord, 16 rotating piece, 17 notch.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical solution: a quick locking structure for a pvc folding chair, comprising a folding chair body 1, the folding chair body 1 is composed of a first folding leg 2 and a second folding leg 3 and the seat 4, the length of the first folding leg 2 is greater than the length of the second folding leg 3, and the first folding leg 2 and the second folding leg 3 are both hinged on the side of the seat 4, and the first folding leg 2 A connecting piece 5 is arranged between the second folding leg 3 and the connecting piece 5. The connecting piece 5 is located above the seat 4, and the two ends of the connecting piece 5 are hinged on the first folding leg 2 and the second folding leg 3 respectively. The number of the folding legs 2 and the second legs 3 is two, and the two first folding legs 2 are respectively located on both sides of the seat 4 , and the two second folding legs 3 are respectively located on both sides of the seat 4 .

The bottom side of the first folding leg 2 is hinged with a second rod body 8, and the bottom side of the second folding leg 3 is hinged with a first rod body 7. The heights of the first rod body 7 and the second rod body 8 are the same, and the first The rod body 7 is a hollow structure, the top end of the first rod body 7 is welded with an installation cavity 9, the second rod body 8 is inserted into the interior of the first rod body 7, and a slot 11 is provided on the top side of the second rod body 8 to install the cavity 9 is provided with an insertion rod 10, the inner end of the insertion rod 10 penetrates the first rod body 7 and is embedded in the slot 11, the outer side of the insertion rod 10 is sleeved with a fixing plate 12, and the top of the insertion rod 10 is provided with a pull ring 14. The fixed plate 12 and the insertion rod 10 are integrally formed, and the top of the fixed plate is provided with a compression spring 13, the compression spring 13 is sleeved on the outside of the insertion rod 10, and the upper and lower ends of the compression spring 13 are respectively connected to the installation cavity. The inner top of the 9 and the upper surface of the fixed plate 12 are in contact with each other. When unfolded, the first rod body 7 and the second rod body 8 are kept in a horizontal state. As shown in FIG. 1 , when the folding chair body 1 is folded, the second rod body 8 will retracted to the inside of the first rod body 7, and the first rod body 7 abuts on the second folding leg 3, the inner end of the insertion rod 10 is inserted into the slot 11 on the second rod body 8, therefore, the first rod body 7 and the The longitudinal length of the second rod body 8 is fixed.

The top side of the first rod body 7 is hingedly provided with a rotating member 16, the outer side of the second folding leg 3 is provided with a notch 17, the inner side of the rotating member 16 is rotatably connected to the roller, and the roller is embedded in the notch 17. The notch 17 rolls. When the folding chair body 1 is unfolded, the first rod body 7, the second folding leg 2 and the rotating member 16 form a triangular shape as a whole. on the same straight line.

The inside of the first rod body 7 is provided with an elastic cord 15, and the two ends of the elastic cord 15 are respectively fixedly connected to the inner end of the first rod body 7 and the inner end of the second rod body 8. When the folding chair body 1 is unfolded, the elastic cord 15 is in the In the stretched state, the elastic cord 15 has a tendency to pull the second rod body 8 to contract toward the first rod body 7 .

The top of the first folding leg 2 is provided with a backrest 6, the backrest 6 is a plate-like structure, and the two sides of the backrest 6 are respectively fixedly connected with the two first folding legs 2 on both sides of the seat 4, and the backrest 6 is made of PVC material. , with a lightweight and durable effect.

The bottom of the first folding leg 2 is provided with a first connecting rod, and the bottom of the second folding leg 3 is provided with a second connecting rod. On the two first folding legs 2, the first connecting rod and the second connecting rod can enhance the stability and firmness of the folding chair body 1 itself.

The top end of the insertion rod 10 is vertically upward and penetrates the installation cavity 9 , the pull ring 14 is located outside the installation cavity 9 , and the pull ring 14 and the insertion rod 10 are integrally formed.

Working principle: In the present utility model, a first rod body 7 and a second rod body 8 are arranged at the bottom of the folding chair body 1. When the folding chair body 1 is retracted, the second rod body 8 shrinks inside the first rod body 7, and The first rod body 7 is attached to the second folding leg 2. When the folding chair body 1 is unfolded, the first rod body 7 and the second rod body 8 will remain in a horizontal state, and under the elastic force of the compression spring 13, the inner part of the insertion rod 10 will remain in a horizontal state. The end will be inserted into the slot 11 at the top of the second rod body 8 to fix the total length of the first rod body 7 and the second rod body 8, to support and lock the folding chair body 1, to prevent the folding chair during the movement process. The main body 1 is suddenly put away. At the same time, the top side of the first rod body 7 is hingedly provided with a rotating member 16, and the outer end of the rotating member 16 is slidably connected to the notch 17 through a roller. The rotating member 16 is used for supporting and can strengthen the first rod body 7 and the second The stability of the rod body 8 , and when the folding chair body 1 is folded, the rotating member 16 will remain on the same straight line with the second folding leg 3 and the first rod body 7 .

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a pvc folding chair is with locking structure fast, includes folding chair body (1), its characterized in that: the folding chair body (1) is composed of a first folding leg (2), a second folding leg (3) and a seat (4), the length of the first folding leg (2) is greater than that of the second folding leg (3), the first folding leg (2) and the second folding leg (3) are hinged on the side edge of the seat (4), a connecting piece (5) is arranged between the first folding leg (2) and the second folding leg (3), the connecting piece (5) is positioned above the seat (4), the two ends of the connecting piece (5) are respectively hinged on the first folding leg (2) and the second folding leg (3), one side of the bottom of the first folding leg (2) is hinged with a second rod body (8), one side of the bottom of the second folding leg (3) is hinged with a first rod body (7), the first rod body (7) and the second rod body (8) are the same in height, the first rod body (7) is of a hollow structure, the top end of the first rod body (7) is welded with an installation cavity (9), the second rod body (8) is inserted into the first rod body (7), and one side of the top end of the second rod body (8) is provided with a slot (11), an inserting rod (10) is arranged inside the mounting cavity (9), the inner end of the inserted link (10) penetrates through the first link body (7) and is embedded in the slot (11), a fixed disc (12) is sleeved on the outer side of the inserted bar (10), a pull ring (14) is arranged at the top end of the inserted bar (10), the fixed disc (12) and the inserted bar (10) are of an integrated structure, and the top end of the fixed disc is provided with a compression spring (13), the compression spring (13) is sleeved outside the inserted bar (10), and the upper end and the lower end of the compression spring (13) are respectively attached to the top end in the mounting cavity (9) and the upper surface of the fixed disc (12).

2. The quick locking structure for pvc folding chairs according to claim 1, wherein: the top one side of the first rod body (7) is hinged to be provided with a rotating part (16), the outer side of the second folding leg (3) is provided with a scribing opening (17), the inner side of the rotating part (16) is rotated to be connected with a roller, and the roller is embedded into the scribing opening (17).

3. The quick locking structure for pvc folding chairs according to claim 1, wherein: the inside of the first rod body (7) is provided with an elastic rope (15), and two ends of the elastic rope (15) are respectively fixedly connected with the inner end of the first rod body (7) and the inner end of the second rod body (8).

4. The quick locking structure for pvc folding chairs according to claim 1, wherein: the top of the first folding leg (2) is provided with a backrest (6), the backrest (6) is of a plate-shaped structure, and two sides of the backrest (6) are fixedly connected with the two first folding legs (2) on two sides of the seat (4) respectively.

5. The quick locking structure for pvc folding chairs according to claim 1, wherein: the folding chair is characterized in that a first connecting rod is arranged at the bottom of each first folding leg (2), a second connecting rod is arranged at the bottom of each second folding leg (3), and the two ends of each first connecting rod and the two ends of each second connecting rod are welded and fixed to the two first folding legs (2) on the two sides of the chair (4) respectively.

6. The quick locking structure for pvc folding chairs according to claim 1, wherein: the top end of the inserted bar (10) vertically upwards penetrates through the installation cavity (9), the pull ring (14) is located on the outer side of the installation cavity (9), and the pull ring (14) and the inserted bar (10) are of an integrally formed structure.

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