Assembled fast-assembly office chair

Abstract

The utility model belongs to the technical field of office supplies, and particularly relates to an assembled fast-assembly office chair which comprises an office chair body, two mounting frames are fixedly connected to the bottom of the office chair body, supporting frames are slidably connected to the interiors of the two mounting frames, lifting assemblies are arranged at the bottoms of the two supporting frames, and the lifting assemblies are fixedly connected to the bottom of the office chair body. The two lifting assemblies each comprise two fixing frames, the two fixing frames are fixedly connected to the bottom of the supporting frame, the bottoms of the two fixing frames are rotationally connected with connecting rods, the other ends of the two connecting rods are rotationally connected with sliding frames, and the bottoms of the two sliding frames are slidably connected with a base. The rotating handle is rotated to drive the worm to rotate, so that the height of the office chair is conveniently adjusted, an air cylinder is not used as a key component for lifting, and the potential safety hazards that the chair suddenly descends, the component pops up, the supporting stability is lost and the like due to aging of the air cylinder are effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to office supplies technical field, concretely is a kind of assembled quick office chair. BACKGROUND

[0002] With the diversification development of office place and the increasing attention of people to healthy office, the design and function of office chair have also undergone significant changes. From initially providing only simple sitting support to now having various humanized designs and adjustment functions, office chairs have evolved to meet the physical needs and work habits of different users, and have become an indispensable part of office space.

[0003] The prior art has the following defects or problems: the prior art with publication number CN218738054U discloses an office chair, which includes a backrest, a seat, a fan and an air supply pipe. The seat is connected to the backrest. The fan is arranged on the backrest and / or the seat. The fan has an air outlet. The air supply pipe is arranged on the seat and / or the backrest. The air supply pipe forms an air inlet and an air outlet. The air inlet is formed on one end face of the air supply pipe. The air inlet is in communication with the air outlet. The air outlet is formed on the circumferential side of the air supply pipe and extends along the length direction of the air supply pipe. The end of the air supply pipe away from the air inlet is closed. The utility model technical scheme uses a fan and an air supply pipe arranged on the seat and / or the backrest. The air blown out by the air outlet of the fan enters the air inlet and is blown out from the air outlet, which can carry away the heat of the office chair, reduce the temperature of the office chair and improve the user experience.

[0004] The above-mentioned device can reduce the temperature of the office chair and improve the user experience during use through the fan and the air supply pipe. However, the above-mentioned device cannot adjust the height of the office chair. In traditional height-adjustable office chairs, a pneumatic cylinder is used for height adjustment. After long-term use, the pneumatic cylinder will age, leading to pneumatic cylinder failure, sudden chair drop, component ejection, loss of support stability, safety risks such as falling and being hit by parts. Therefore, an assembled quick office chair is proposed to solve the above-mentioned problems.

[0005] It should be noted that the above content belongs to the technical cognition range of the inventor and does not necessarily constitute prior art. UTILITY MODEL CONTENT

[0006] In view of the deficiencies of the prior art, the utility model provides an assembled quick office chair to solve the existing problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an assembly-type quick-assembly office chair, including an office chair body, two mounting brackets fixedly connected to the bottom of the office chair body, a support frame slidably connected inside each of the two mounting brackets, and a lifting component provided at the bottom of each of the two support frames;

[0008] Both lifting components include two fixed frames, both fixed frames are fixedly connected to the bottom of the support frame, both fixed frames are rotatably connected to the bottom of the bottom of the two fixed frames, both connecting rods are rotatably connected to the other end of the two connecting rods, both sliding frames are slidably connected to the bottom of the two sliding frames, both sliding frames are fixedly connected to the bottom of the two sliding frames, both sliding blocks are slidably connected inside the base, both the base is rotatably connected to a bidirectional threaded rod, both sliding blocks are threaded to the outer periphery of the bidirectional threaded rod, and both the base is provided with a drive component.

[0009] Both mounting brackets contain assembly components.

[0010] As a preferred technical solution of this utility model, both of the assembly components include multiple locking blocks, which are slidably connected inside the mounting frame. One end of the support frame is provided with multiple slots, and the multiple locking blocks are respectively locked inside the multiple slots. The ends of the multiple locking blocks away from the support frame are fixedly connected with pull rods, and springs are sleeved on the outer periphery of the multiple pull rods.

[0011] As a preferred technical solution of this utility model, the mounting bracket has multiple limiting grooves inside, and the multiple pull rods are slidably connected inside the multiple limiting grooves.

[0012] In a preferred embodiment of this invention, the drive assembly includes a worm gear and a worm. The worm gear is fixedly connected to the front end of the bidirectional threaded rod, and the worm is rotatably connected inside the base. The worm gear and the worm mesh with each other.

[0013] As a preferred embodiment of this utility model, a synchronizing rod is rotatably connected to the middle of the two connecting rods, and a rotator is fixedly connected to the top of the worm gear.

[0014] As a preferred embodiment of this utility model, the base is internally fixedly connected to two sliding rods, and the two moving blocks are slidably connected to the outer periphery of the two sliding rods.

[0015] As a preferred embodiment of this utility model, each of the plurality of pull rods is fixedly connected to a limiting block at one end away from the locking block, and a handle is fixedly connected to the other end of the plurality of limiting blocks.

[0016] Compared with the prior art, this utility model provides an assembly-type quick-assembly office chair, which has the following features:

[0017] Advantages:

[0018] 1、The assembled quick-assembly office chair, through the cooperation between the supporting frame, the fixing frame, the connecting rod, the sliding frame, the base, the synchronous rod, the moving block, the bidirectional threaded rod, the worm gear, the worm, the sliding rod and the rotating handle, the rotating handle drives the worm to rotate, the worm meshes with the worm gear to drive the bidirectional threaded rod to rotate, and then the two moving blocks that are screwed on the bidirectional threaded rod move relative to or away from each other under the limitation of the sliding rod, the moving block drives the sliding frame to slide on the base, the sliding frame drives the supporting frame to rise and fall through the connecting rod and the fixing frame, the height of the office chair is conveniently adjusted, no air cylinder is used as a key component for lifting, potential safety hazards, such as sudden falling of the chair, ejection of components and loss of supporting stability, caused by aging of the air cylinder are effectively avoided, the individualized demand of different users for the height of the office chair is effectively met, and the use comfort is improved.

[0019] 2、The assembled quick-assembly office chair, through the cooperation between the mounting frame, the supporting frame, the clamping groove, the limiting groove, the clamping block, the pull rod, the spring, the limiting block and the handle, the handle is pulled to drive the clamping block to be pulled out of the clamping groove of the supporting frame under the constraint of the limiting groove and against the spring force, the supporting frame and the mounting frame can be conveniently disassembled, and vice versa, the clamping block is clamped into the clamping groove to realize quick assembly by releasing the handle, the operation is simple and efficient, the transportation, storage and assembly of the office chair are greatly facilitated, the maintenance cost and difficulty are reduced, and the practicality and use flexibility of the office chair are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is a structural schematic view of the connecting rod in the utility model;

[0022] Figure 3 It is a structural schematic view of the base in the utility model;

[0023] Figure 4 It is a structural schematic view of the mounting frame in the utility model;

[0024] Figure 5 It is a structural schematic view of the clamping block in the utility model.

[0025] In the drawing: 1, office chair body; 2, mounting frame; 3, supporting frame; 4, fixing frame; 5, connecting rod; 6, sliding frame; 7, base; 8, synchronous rod; 9, moving block; 10, bidirectional threaded rod; 11, worm gear; 12, worm; 13, sliding rod; 14, rotating handle; 15, clamping groove; 16, limiting groove; 17, clamping block; 18, pull rod; 19, spring; 20, limiting block; 21, handle. DETAILED DESCRIPTION

[0026] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figure 1 - Figure 3 In the embodiment, the assembled quick-mounting office chair comprises an office chair body 1, two mounting racks 2 are fixedly connected to the bottom of the office chair body 1, and a supporting rack 3 is slidably connected to the inside of each mounting rack 2.

[0028] Specifically, the office chair body 1 is the main part for the user to sit on, and provides a comfortable sitting feeling for the user. The mounting rack 2 is fixed to the bottom of the office chair body 1, and provides a stable supporting structure for the supporting rack 3, so that the supporting rack 3 can keep stable during lifting and not deviate.

[0029] The bottom of each supporting rack 3 is provided with a lifting assembly. The lifting assembly comprises two fixing racks 4, the fixing racks 4 are fixedly connected to the bottom of the supporting rack 3, a connecting rod 5 is rotatably connected to the bottom of each fixing rack 4, a sliding rack 6 is rotatably connected to the other end of the connecting rod 5, a base 7 is slidably connected to the bottom of the sliding rack 6, a moving block 9 is fixedly connected to the bottom of the sliding rack 6, the moving block 9 is slidably connected to the inside of the base 7, a bidirectional screw rod 10 is rotatably connected to the inside of the base 7, the moving block 9 is threadedly connected to the outer periphery of the bidirectional screw rod 10, a driving assembly is arranged in the inside of the base 7, the driving assembly comprises a worm gear 11 and a worm 12, the worm gear 11 is fixedly connected to the front end of the bidirectional screw rod 10, the worm 12 is rotatably connected to the inside of the base 7, the worm gear 11 and the worm 12 are in mesh with each other, a synchronous rod 8 is rotatably connected to the middle of the connecting rod 5, a handle 14 is fixedly connected to the top of the worm 12, two sliding rods 13 are fixedly connected to the inside of the base 7, and the moving block 9 is slidably connected to the outer periphery of the sliding rod 13.

[0030] Specific, the fixed frame 4 is used to support the connecting rod 5, the connecting rod 5 is arranged between the fixed frame 4 and the sliding frame 6, the force is diverted and transmitted, the sliding frame 6 can slide horizontally on the base 7, the moving block 9 at the bottom of the sliding frame 6 is threadedly connected with the bidirectional threaded rod 10, when the bidirectional threaded rod 10 rotates, the two moving blocks 9 will move towards opposite directions, thereby driving the sliding frame 6 to move, the sliding rod 13 is fixed inside the base 7, which provides accurate guidance for the movement of the moving block 9, the worm gear 11 is arranged on the bidirectional threaded rod 10, the worm 12 is arranged on the base 7, which is used to rotate the worm 12 to drive the worm gear 11 to rotate, the rotating handle 14 is arranged on the worm 12, which is convenient for the user to drive the worm 12 to rotate through the rotating handle 14, the synchronous rod 8 connects the two connecting rods 5, which ensures that the two sliding frames 6 can move synchronously during lifting, so that the office chair can be lifted stably, and the inclination or jamming phenomenon can be avoided.

[0031] Please refer to Figure 1 、 Figure 4 and Figure 5 In the embodiment, the two mounting frames 2 are internally provided with assembling components, the two assembling components each include a plurality of clamping blocks 17, the plurality of clamping blocks 17 are each slidably connected inside the mounting frame 2, the support frame 3 has a plurality of clamping grooves 15 formed at one end thereof, the plurality of clamping blocks 17 are respectively clamped inside the plurality of clamping grooves 15, the plurality of clamping blocks 17 each have a pull rod 18 fixedly connected to an end thereof away from the support frame 3, the plurality of pull rods 18 each have a spring 19 sleeved on an outer periphery thereof, the mounting frame 2 has a plurality of limiting grooves 16 formed therein, the plurality of pull rods 18 are respectively slidably connected inside the plurality of limiting grooves 16, and the plurality of pull rods 18 each have a limiting block 20 fixedly connected to an end thereof away from the clamping block 17.

[0032] Specifically, the clamping block 17 cooperates with the clamping groove 15 to quickly connect and fix the support frame 3 and the mounting frame 2, the pull rod 18 is connected to the clamping block 17, which facilitates the user to pull the clamping block 17, the spring 19 is sleeved on the outer periphery of the pull rod 18, in a natural state, the elastic force of the spring 19 tightly clamps the clamping block 17 into the clamping groove 15, so as to ensure the firmness of the connection, when disassembly is needed, the pulling handle 21 is pulled to overcome the elastic force of the spring 19 to make the clamping block 17 separate from the clamping groove 15, the limiting groove 16 is formed in the mounting frame 2 to provide space for the sliding of the pull rod 18, preventing the pull rod 18 from deviating during movement, the limiting block 20 is fixed to an end of the pull rod 18 away from the clamping block 17, preventing the pull rod 18 from excessively sliding out of the mounting frame 2, and the pulling handle 21 is arranged on the limiting block 20, facilitating the user to operate by force.

[0033] The working principle and use process of the utility model: when the height of the office chair needs to be adjusted, the operator rotates the rotating handle 14, the worm 12 rotates in the base 7, thereby driving the worm gear 11 to rotate, the worm gear 11 drives the bidirectional threaded rod 10 to rotate, when the bidirectional threaded rod 10 rotates, the two moving blocks 9 on the outer periphery move relatively or oppositely under the guidance of the slide rod 13, the movement of the moving block 9 drives the sliding frame 6 to slide on the base 7, the sliding frame 6 makes the support frame 3 stably ascend and descend through the connecting rod 5 and the fixed frame 4, the height of the office chair is conveniently adjusted, and the technology does not depend on the air cylinder, thereby avoiding the security risks caused by the aging of the air cylinder.

[0034] When the office chair needs to be disassembled or assembled, the operator pulls the handle 21, the handle 21 drives the pull rod 18 to slide in the limiting groove 16 in the mounting frame 2 through the limiting block 20, the pull rod 18 drives the clamping block 17 to be pulled out of the clamping groove 15 of the support frame 3 by overcoming the elastic force of the spring 19, thereby disconnecting the support frame 3 and the mounting frame 2, completing the disassembly, facilitating transportation and storage, when assembling, the clamping block 17 is pulled into the limiting groove 16 through the pull rod 18, then the support frame 3 is placed against the mounting frame 2, the handle 21 is loosened, the spring 19 pushes the clamping block 17 to be clamped into the clamping groove 15, realizing quick assembly, and improving the practicability and flexibility of the office chair.

[0035] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. An assembled quick-assembly office chair, comprising an office chair body (1), two mounting racks (2) are fixedly connected at the bottom of the office chair body (1), and a supporting rack (3) is slidably connected in each of the two mounting racks (2), characterized in that: The bottom of each of the two support frames (3) is provided with a lifting assembly; Each of the two lifting assemblies comprises two fixing frames (4) fixedly connected to the bottom of the support frame (3), two connecting rods (5) rotatably connected to the bottom of each of the two fixing frames (4), two sliding frames (6) rotatably connected to the other end of each of the two connecting rods (5), a base (7) slidably connected to the bottom of each of the two sliding frames (6), a moving block (9) fixedly connected to the bottom of each of the two sliding frames (6), the moving block (9) slidably connected to the inside of the base (7), a bidirectional threaded rod (10) rotatably connected to the inside of the base (7), and the moving block (9) threadedly connected to the outer periphery of the bidirectional threaded rod (10). The inside of each of the two mounting frames (2) is provided with an assembling assembly.

2. The assembled quick-mount office chair according to claim 1, wherein: Each of the two assembling assemblies comprises a plurality of clamping blocks (17) slidably connected to the inside of the mounting frame (2), a plurality of clamping grooves (15) formed in one end of the support frame (3), the clamping blocks (17) respectively clamped in the clamping grooves (15), a plurality of pull rods (18) fixedly connected to the end of each of the clamping blocks (17) away from the support frame (3), and a spring (19) sleeved around each of the pull rods (18).

3. An assembled quick-fit office chair according to claim 2, characterized in that: The inside of the mounting frame (2) is provided with a plurality of limiting grooves (16), and each of the pull rods (18) is slidably connected to the inside of each of the limiting grooves (16).

4. The assembled quick-mount office chair according to claim 1, wherein: The driving assembly comprises a worm gear (11) and a worm (12), the worm gear (11) is fixedly connected to the front end of the bidirectional threaded rod (10), the worm (12) is rotatably connected to the inside of the base (7), and the worm gear (11) and the worm (12) are in meshing engagement.

5. An assembled quick-fit office chair according to claim 4, characterized in that: The middle part of each of the two connecting rods (5) is rotatably connected to a synchronous rod (8), and the top of the worm (12) is fixedly connected to a rotating handle (14).

6. The assembled quick-fit office chair according to claim 1, characterized in that: The inside of the base (7) is fixedly connected to two sliding rods (13), and each of the moving blocks (9) is slidably connected to the outer periphery of each of the sliding rods (13).

7. The assembled quick-fit office chair according to claim 3, characterized in that: The end of each of the pull rods (18) away from the clamping block (17) is fixedly connected to a limiting block (20), and the other end of each of the limiting blocks (20) is fixedly connected to a pull handle (21).

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