Office chair convenient to fold, store and carry

Abstract

The utility model discloses an office chair convenient to fold, store and carry, which comprises a seat plate, a connecting plate arranged at the bottom of the seat plate, a lifting column arranged at the bottom of the connecting plate, a connecting column arranged at the bottom of the lifting column, a plurality of first supporting legs arranged on the outer side surface of the connecting column, and a second supporting leg connected to the other side of each first supporting leg through a hinge. A clamping assembly is arranged between the first supporting leg and the second supporting leg, grab rails are symmetrically arranged on the left side and the right side of the seat plate, each grab rail is integrally formed by a transverse rod and two vertical rods, a connecting frame is arranged on the surface of the rear side of the seat plate, and the inner side of the connecting frame is connected with a back plate through a rotating shaft. Protrusions are arranged on the outer surface of the back plate, and clamping grooves are formed in the outer side surfaces of the vertical rods. After the device is stored, the moving wheels face upwards and are close to the lifting columns, then the lifting columns are contracted to be the shortest, the moving wheels are close to the connecting plates, in the carrying process, people do not need to worry about that the moving wheels with dirty surfaces touch people or other objects, and practicability and convenience are higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to office chair technical field, specifically a kind of office chair of folding storage and convenient to carry. BACKGROUND

[0002] Office chair refers to the chair equipped for work convenience in daily work and social activities, and most office chairs are used in office places, so that the existing office chair is single in shape and large in size. In some conference places, the position of office chair needs to be changed frequently, and the seat layout is changed according to the number of people, so as to adapt to the needs of different specifications of conferences.

[0003] In some existing technologies, a part of office chairs is inconvenient to store and carry due to its large size, which affects the transportation of people, and most of the existing office chairs have wheels, and as long as the office chair is not new, the wheels must be used, that is, the wheels have been in contact with the ground, which causes dust and other pollutants to adhere to the wheels. During the process of carrying the office chair, the wheels are inevitably touched or the wheels touch other objects beside, which brings inconvenience to the user. Therefore, we design an office chair which is convenient to fold, store and carry to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing an office chair which is convenient to fold, store and carry to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An office chair which is convenient to fold, store and carry, comprising a seat plate, a connecting plate is arranged at the bottom of the seat plate, a lifting column is arranged at the bottom of the connecting plate, a connecting column is arranged at the bottom of the lifting column, a plurality of first supporting legs are uniformly arranged on the outer surface of the connecting column along the circumferential direction thereof, a second supporting leg is rotatably connected to the top end of the other side surface of the first supporting leg through a hinge, a support is arranged at the bottom of the second supporting leg and away from the first supporting leg, a moving wheel is arranged at the bottom of the support, a clamping assembly is arranged between the first supporting leg and the second supporting leg, a handrail is symmetrically arranged on the left and right sides of the seat plate, the handrail is integrally formed by a horizontal rod and two vertical rods, a connecting frame is fixedly arranged on the rear surface of the seat plate, a back plate is movably connected to the inner side of the connecting frame through a rotating shaft, two groups of protrusions are symmetrically arranged on the outer surfaces of the left and right sides of the back plate, each group of protrusions comprises two protrusions, a clamping groove is formed on the outer surface of the vertical rod for embedding the protrusions, and a fixing bolt is symmetrically inserted into the outer walls on the left and right sides of the connecting frame.

[0007] As a preferred scheme of the utility model: the clamping assembly includes clamping column, recess, clamping groove, push button and spring, the first support leg is close to the surface of one side of the hinge and is provided with recess, the recess is equipped with the clamping column that is suitable in the sliding, the recess bottom wall is equipped with spring, and the other end of spring is connected with clamping column, the second support leg is close to the surface of one side of the hinge and is provided with the clamping groove for clamping column embedding, the first support leg bottom is provided with the sliding slot that is communicated with recess, and the connecting rod that is suitable is equipped with in the sliding of sliding slot, and one end of connecting rod is connected with clamping column, and the other end is connected with push button.

[0008] As a further preferred scheme of the utility model: the convex is hemispherical structure, and the material of convex is rubber.

[0009] As a further preferred scheme of the utility model: the second support leg top is embedded with magnetic block A, and the first support leg top is embedded with magnetic block B that is matched with magnetic block A.

[0010] As a further preferred scheme of the utility model: the connecting frame is "U" shape.

[0011] As a further preferred scheme of the utility model: the screw hole is located below the pivot.

[0012] As a further preferred scheme of the utility model: the push button is slidably arranged at the bottom of the first support leg.

[0013] Compared with the prior art, the utility model has the beneficial effects that when needing to carry the device, the user first screws the fixing bolt, removes the fixing bolt from the screw hole, but the fixing bolt is still on the connecting frame, avoids losing the fixing bolt, and also facilitates next time to unfold and continue to use, then rotates the backboard between the two handrails, at the same time, the convex is clamped into the corresponding clamping groove, fixes the position of the folded backboard, and facilitates transportation, then the user pushes the push button, moves the clamping column through the connecting rod, and makes the clamping column completely retract into the recess, that is, the clamping column is completely separated from the clamping groove, the clamping effect is removed, so the second support leg can be turned up, until magnetic block A and magnetic block B mutually adhere and adsorb, at this time, the moving wheel faces upwards and is close to the lifting column, again makes the moving wheel close to the connecting plate, so when carrying, it is not necessary to worry that the moving wheel with relatively dirty surface will touch people or other articles, and the practicality and convenience are higher. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the perspective view of the whole structure of the utility model;

[0015] Figure 2 It is the perspective view of the whole structure of another angle of the utility model;

[0016] Figure 3 It isFigure 2 Enlarged view at A;

[0017] Figure 4 The schematic diagram of the partial structure of the utility model when being stored.

[0018] Wherein: 1- seat plate, 2- connecting plate, 3- lifting column, 4- second support leg, 5- first support leg, 6- support, 7- connecting column, 8- clamping groove, 9- handrail rod, 10- back plate, 11- protrusion, 12- connecting frame, 13- fixing bolt, 14- sliding groove, 15- push button, 16- pivot, 17- clamping groove, 18- clamping column, 19- recess. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. In the description of the utility model, it should be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connecting" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0020] Please refer to Figures 1-4 In the embodiments of the utility model, an office chair convenient to fold, store and carry, comprising a seat plate 1, the bottom of the seat plate 1 is provided with a connecting plate 2, the bottom of the connecting plate 2 is provided with a lifting column 3, the bottom of the lifting column 3 is provided with a connecting column 7, the outer surface of the connecting column 7 is uniformly provided with a plurality of first support legs 5 along the circumferential direction thereof, the other side surface top end of the first support leg 5 is rotatably connected with a second support leg 4 through a hinge, the bottom of the second support leg 4 and away from the side of the first support leg 5 is provided with a support 6, the bottom of the support 6 is provided with a moving wheel, the first support leg 5 and the second support leg 4 are provided with a clamping assembly, the seat plate 1 is symmetrically provided with a handrail rod 9 on the left and right sides thereof, the handrail rod 9 is integrally formed by a horizontal rod and two vertical rods, the rear side surface of the seat plate 1 is fixedly provided with a connecting frame 12, the connecting frame 12 is in the shape of "U", the inner side of the connecting frame 12 is movably connected with a back plate 10 through a pivot 16, the outer surfaces of the left and right sides of the back plate 10 are symmetrically provided with two groups of protrusions 11, the number of protrusions 11 in each group is two, the outer surface of the vertical rod is provided with a clamping groove 8 for embedding the protrusion 11, the left and right side outer walls of the connecting frame 12 are symmetrically inserted with fixing bolts 13, the surface of the back plate 10 is provided with screw holes matched with the fixing bolts 13, and the screw holes are located below the pivot 16.

[0021] The snap-fit ​​assembly includes a snap-fit ​​post 18, a groove 19, a snap-fit ​​slot 17, a push button 15, and a spring. The first support leg 5 has a groove 19 on its surface near the hinge. A snap-fit ​​post 18 is slidably disposed in the groove 19. A spring is disposed on the bottom wall of the groove 19. The other end of the spring is connected to the snap-fit ​​post 18. The second support leg 4 has a snap-fit ​​slot 17 on its surface near the hinge for the snap-fit ​​post 18 to be inserted. The bottom of the first support leg 5 has a sliding groove 14 that communicates with the groove 19. A connecting rod is slidably disposed in the sliding groove 14. One end of the connecting rod is connected to the snap-fit ​​post 18, and the other end is connected to the push button 15. The push button 15 is slidably disposed at the bottom of the first support leg 5.

[0022] The lifting column 3 in this device has a lifting function, which is achieved through a pneumatic or hydraulic system. It uses the compression and expansion of gas to achieve the purpose of lifting. This technology is a common existing technology in the field of office chairs, which is easy to implement and is not an innovation of this application. Therefore, it will not be described in detail, and the relevant specific structure is not shown in the figure.

[0023] The protrusion 11 is a hemispherical structure and is made of rubber. This design makes it easy for the protrusion 11 to be inserted into the slot 8, while also having a certain elastic compressive force to ensure that the back panel 10 is fixed in position after being folded and stored, making it easy to move and unfold again.

[0024] The top of the second support leg 4 is embedded with a magnetic block A, and the top of the first support leg 5 is embedded with a magnetic block B that cooperates with the magnetic block A. The relative position between the two is fixed by the mutual attraction between the magnetic blocks A and B, which facilitates transportation and re-expansion.

[0025] Specifically, when the device needs to be moved, the user first unscrews the fixing bolt 13 to remove it from the screw hole, but the fixing bolt 13 remains on the connecting frame 12 to prevent it from being lost and to facilitate continued use after unfolding. Then, the user rotates the back panel 10 between the two handrails 9. Simultaneously, the protrusion 11 engages with the corresponding slot 8, fixing the position of the folded back panel 10 for easy transport. Next, the user pushes the push button 15, which moves the locking post 18 via the connecting rod, causing the locking post 18 to fully retract into the groove 19. This means the locking post 18 is completely separated from the locking groove 17, releasing the locking action. Therefore, the second support leg 4 can be flipped upwards until magnetic block A and magnetic block B adhere and attract each other. At this point, the moving wheel faces upwards and is close to the lifting column 3. Figure 4 As shown, the lifting column 3 is then retracted to its shortest length, bringing the moving wheels closer to the connecting plate 2. This way, during transport, there is no need to worry about the dirty moving wheels touching people or other objects, making it more practical and convenient.

[0026] In addition, when it is needed to be unfolded, the push button 15 is pushed to make the clamping column 18 retracted into the groove 19, then the second supporting leg 4 is rotated to make it unfolded, then the push button 15 is released, under the elastic force of the spring, the clamping column 18 is pushed into the clamping groove 17 to be clamped, the operation process is simple and convenient, the convenience of the device is improved, and it is worth popularizing.

[0027] It should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An office chair that is easy to fold, store, and transport, comprising a seat (1); characterized in that: The seat (1) has a connecting plate (2) at its bottom, a lifting column (3) at its bottom, and a connecting column (7) at its bottom. Multiple first support legs (5) are evenly distributed along the circumference of the outer surface of the connecting column (7). A second support leg (4) is rotatably connected to the top of the other side surface of the first support leg (5) via a hinge. A support (6) is provided at the bottom of the second support leg (4) on the side away from the first support leg (5). A caster is provided at the bottom of the support (6). A snap-fit ​​assembly is provided between the first support leg (5) and the second support leg (4). The seat (1) has multiple first support legs (5) evenly distributed along its circumference. The seat is equipped with a handrail (9), which is integrally formed by a horizontal bar and two vertical bars. A connecting frame (12) is fixedly provided on the rear surface of the seat (1). A back plate (10) is movably connected to the inner side of the connecting frame (12) through a pivot (16). Two sets of protrusions (11) are symmetrically provided on the outer surfaces of the left and right sides of the back plate (10). There are two protrusions (11) in each set. The outer surface of the vertical bar is provided with a slot (8) for the protrusions (11) to be inserted. Fixing bolts (13) are symmetrically inserted into the outer walls of the left and right sides of the connecting frame (12). The surface of the back plate (10) is provided with screw holes that cooperate with the fixing bolts (13).

2. The office chair that is easy to fold, store, and transport according to claim 1, characterized in that: The snap-fit ​​assembly includes a snap-fit ​​post (18), a groove (19), a snap-fit ​​groove (17), a push button (15), and a spring. The first support leg (5) has a groove (19) on its surface near the hinge. A snap-fit ​​post (18) adapted to the groove (19) is slidably disposed in the groove (19). A spring is disposed on the bottom wall of the groove (19). The other end of the spring is connected to the snap-fit ​​post (18). The second support leg (4) has a snap-fit ​​groove (17) on its surface near the hinge for the snap-fit ​​post (18) to be inserted. The bottom of the first support leg (5) has a sliding groove (14) communicating with the groove (19). A connecting rod adapted to the sliding groove (14) is slidably disposed in the sliding groove (14). One end of the connecting rod is connected to the snap-fit ​​post (18), and the other end is connected to the push button (15).

3. An office chair that is easy to fold, store, and transport according to claim 2, characterized in that: The protrusion (11) is a hemispherical structure and is made of rubber.

4. An office chair that is easy to fold, store, and transport according to claim 3, characterized in that: The top of the second support leg (4) is fitted with a magnetic block A, and the top of the first support leg (5) is fitted with a magnetic block B that cooperates with the magnetic block A.

5. An office chair that is easy to fold, store, and transport according to claim 4, characterized in that: The connecting frame (12) is U-shaped.

6. An office chair that is easy to fold, store, and transport according to claim 1, characterized in that: The screw hole is located below the rotating shaft (16).

7. An office chair that is easy to fold, store, and transport according to claim 2, characterized in that: The push button (15) is slidably disposed at the bottom of the first support leg (5).

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