Office chair with quickly-assembled armrest structure

Abstract

The utility model discloses an office chair with a quick-assembly armrest structure. The office chair comprises a chair main body, an armrest main body and a locking structure, and an inserting section is arranged at the end part of the armrest main body. Armrest slots matched with the inserting sections are formed in the seat main body. And the insertion section is inserted into the handrail insertion groove. According to the utility model, the locking structure consisting of the dismounting driving wrench, the transmission rod and the locking piece is arranged on the insertion section of the handrail main body. And meanwhile, the seat main body is provided with a clamping cavity matched with the seat main body. When the armrest main body is inserted into the seat main body, the locking piece at the inner end of the transmission rod can be embedded into the clamping cavity by rotating the dismounting and mounting driving wrench, so that the position of the armrest main body is quickly locked, and the mounting efficiency of the armrest main body is improved.

Description

Technical Field

[0001] This utility model belongs to the field of office chair technology, specifically relating to an office chair with a quick-release armrest structure. Background Technology

[0002] Currently, chairs are an indispensable item in people's daily lives and work, especially when people are resting. Sitting in a chair not only relaxes the body but also helps to unwind tense nerves. To improve comfort, chairs often include armrests.

[0003] In existing technologies, seat armrests are typically fixed to the seat body using multiple screws. However, during assembly, users need tools to install these screws. Furthermore, since the connection point between the armrest and the seat is located on the bottom of the seat, installation is time-consuming and labor-intensive. When the armrest needs to be removed for transportation, the seat usually needs to be inverted before removing the multiple bolts. This disassembly process is also time-consuming and labor-intensive. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides an office chair with a quick-release armrest structure to solve the technical problem that installing armrests on existing office chairs is time-consuming and laborious.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0006] An office chair with a quick-release armrest structure includes a seat body, an armrest body, and a locking mechanism. The armrest body has a plug-in section at its end. The seat body has an armrest slot that mates with the plug-in section. The plug-in section is inserted into the armrest slot.

[0007] The inner cavity of the armrest slot is provided with a snap-fit ​​cavity that mates with the locking structure. The locking structure is installed on the insertion section and can be embedded in the snap-fit ​​cavity when the insertion end of the armrest body is inserted into the armrest slot.

[0008] The locking structure includes a disassembly and assembly drive wrench, a transmission rod, and a locking element. The inner end of the transmission rod is rotatably engaged with the disassembly and assembly drive wrench. The locking element is installed on the outer end of the transmission rod. The disassembly and assembly drive wrench is equipped with an eccentric wheel structure, which can drive the transmission rod to retract when rotated, thereby allowing the locking element to be embedded in the locking cavity.

[0009] Furthermore, the inner end of the transmission rod rotatably engages with the disassembly and assembly drive wrench. The outer ring of the disassembly and assembly drive wrench is sequentially divided into an unlocking section and a locking section. The distance from the unlocking section to the rotating pin is less than the distance from the locking section to the rotating pin, forming an eccentric wheel structure.

[0010] Furthermore, the unlocking section of the disassembly and assembly drive wrench has an arc-shaped structure, while the locking section has a planar structure.

[0011] Furthermore, the locking structure also includes a connecting support. The connecting support has a connecting groove through which the inner end of the transmission rod passes and connects to the disassembly / removal drive wrench. The transmission rod is provided with an elastic element. The inner end of the elastic element abuts against the connecting support, applying an outward thrust to the transmission rod.

[0012] Furthermore, the elastic element is a spring. The spring is sleeved on the transmission rod.

[0013] Furthermore, the snap-fit ​​cavity is divided into an inner insertion section, a transition section, and a snap-fit ​​groove section that are connected in sequence. The transition section and the snap-fit ​​groove section form a hook-shaped structure at the outer end of the inner insertion section.

[0014] Furthermore, the inner insertion section, transition section and slot section in the snap-fit ​​cavity are all provided with arc-shaped guide surfaces.

[0015] Furthermore, the handrail body has a mounting groove that mates with a disassembly and assembly drive wrench. Both the disassembly and assembly drive wrench and the connecting support are housed within the mounting groove. The handrail body also has a movable groove that mates with a transmission rod. The inner end of the transmission rod passes through the movable groove and rotatably engages with the disassembly and assembly drive wrench.

[0016] Furthermore, the movable groove on the main body of the handrail has a funnel-shaped structure that is smaller on the inside and larger on the outside.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This invention features a locking structure on the insertion section of the armrest body, consisting of a disassembly / removal drive wrench, a transmission rod, and a locking component. Simultaneously, a corresponding snap-fit ​​cavity is provided on the seat body. When the armrest body is inserted into the seat body, rotating the disassembly / removal drive wrench causes the locking component at the inner end of the transmission rod to engage in the snap-fit ​​cavity, achieving rapid locking of the armrest body's position and thus improving the installation efficiency of the armrest body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the relative positions of the locking structure and the handrail body in this utility model;

[0021] Figure 3 This is a schematic diagram of the locking structure in the locked state of this utility model;

[0022] Figure 4 This is a schematic diagram of the disassembly and assembly drive wrench in this utility model.

[0023] Reference numerals: 1. Seat body; 2. Armrest body; 3. Locking structure; 4. Insertion section; 5. Snap-fit ​​cavity; 5-1. Inner insertion section; 5-2. Transition section; 5-3. Slot section; 6. Disassembly and assembly drive wrench; 6-1. Unlocking section; 6-2. Locking section; 7. Connecting support; 8. Transmission rod; 9. Locking element; 10. Spring; 11. Movable groove. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper side", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1 and 2 As shown, an office chair with a quick-release armrest structure includes a seat body 1, an armrest body 2, and a locking structure 3. The armrest body 2 has a plug-in section 4 at its end. The seat body 1 has an armrest slot that mates with the plug-in section 4. The plug-in section 4 is inserted into the armrest slot. The inner cavity of the armrest slot has a locking cavity 5 that mates with the locking structure 3. The locking structure 3 is mounted on the plug-in section 4 and extends into the locking cavity 5 when the plug-in end of the armrest body 2 is inserted into the armrest slot, thus locking the position of the armrest body 2 in place.

[0027] The specific structure is as follows: Figure 2 and 3 As shown, the locking structure 3 includes a disassembly / reassembly drive wrench 6, a connecting support 7, and a transmission rod 8 connected in sequence. The handrail body 2 has a mounting groove that mates with the disassembly / reassembly drive wrench 6. Both the disassembly / reassembly drive wrench 6 and the connecting support 7 are located within the mounting groove. The connecting support 7 has a connecting groove that mates with the transmission rod 8. The inner end of the transmission rod 8 passes through the connecting groove and connects to the disassembly / reassembly drive wrench 6. The disassembly / reassembly drive wrench 6 can pull back the transmission rod 8 during rotation.

[0028] The handrail body 2 has a movable groove 11 on its insertion section 4 that mates with the transmission rod 8. The outer end of the transmission rod 8 passes through the mounting groove and can extend into the locking cavity 5 when the insertion section 4 is inserted into the handrail slot. The outer end of the transmission rod 8 is provided with a locking element 9, which can lock the handrail body 2 in conjunction with the locking cavity 5 when the transmission rod 8 returns. A spring 10 is sleeved on the outer ring of the transmission rod 8. The inner end of the spring 10 abuts against the connecting support 7 and is used to push the transmission rod 8 outward in the initial state.

[0029] In the specific installation process, initially, the transmission rod 8 extends outward under the action of the spring 10. Simultaneously, the disassembly and assembly drive wrench 6 is in a downward-swinging state. When the locking piece 9 on the transmission rod 8 moves to the corresponding position in the locking cavity 5 during the insertion of the transmission rod 8, the user pulls the transmission rod 8 back by raising the disassembly and assembly drive wrench 6. Driven by the transmission rod 8, the locking piece 9 engages in the corresponding slot in the locking cavity 5, thereby locking the relative position between the armrest body 2 and the seat body 1.

[0030] like Figure 3 As shown, in this embodiment, the snap-fit ​​cavity 5 is divided into an inner insertion section 5-1, a transition section 5-2, and a snap-fit ​​groove section 5-3 connected in sequence. The transition section 5-2 and the snap-fit ​​groove section 5-3 form a hook-shaped structure at the outer end of the inner insertion section 5-1. The movable groove 11 on the handrail body 2 has a trumpet-shaped structure that is smaller on the inside and larger on the outside, allowing the transmission rod 8 to have room to swing left and right during installation.

[0031] During installation, the transmission rod 8 is gradually inserted into the inner end of the inner insertion section 5-1 under the drive of the handrail body 2. The user moves the disassembly and assembly drive wrench 6 horizontally, causing the locking member 9 at the outer end of the transmission rod 8 to move laterally on the transition section 5-2. When the locking member 9 moves to its limit position, the user moves the disassembly and assembly drive wrench 6 vertically upward, thereby pulling the transmission rod 8 back, causing the locking member 9 to embed into the slot section 5-3, thus locking the entire handrail body 2.

[0032] Furthermore, such as Figure 4 As shown, the inner end of the transmission rod 8 is equipped with a rotating pin. The transmission rod 8 is rotatably engaged with the disassembly and assembly drive wrench 6 via the rotating pin. The outer ring of the disassembly and assembly drive wrench 6 is divided into an unlocking section 6-1 and a locking section 6-2. The distance from the unlocking section 6-1 to the rotating pin is less than the distance from the locking section 6-2 to the rotating pin, thus forming an eccentric wheel structure between the transmission rod 8 and the disassembly and assembly drive wrench 6. During installation, the elastic thrust applied to the transmission rod 8 by the spring 10 on the transmission rod 8 ensures that the outer ring of the disassembly and assembly wrench remains in contact with the connecting support 7.

[0033] In the initial state, the unlocking section 6-1 of the disassembly and assembly drive wrench 6 is engaged with the connecting support 7. The transmission rod 8 extends to its limit position under the action of the spring 10. When the transmission rod 8 is inserted into the inner insertion section 5-1 of the locking cavity 5, the transmission rod 8 moves laterally under the action of the disassembly and assembly drive wrench 6, moving to the position of the slot section 5-3. By pushing the disassembly and assembly drive wrench 6 upwards, the outer ring of the disassembly and assembly drive wrench 6 engaged with the connecting support 7 gradually switches from the unlocking section 6-1 to the locking section 6-2. During the switching process of the disassembly and assembly drive wrench 6, the transmission rod 8 gradually retracts, thereby causing the locking element 9 to embed into the slot section 5-3, achieving position locking of the handrail body 2.

[0034] In this embodiment, the unlocking section 6-1 of the disassembly and assembly drive wrench 6 has an arc-shaped structure, and the locking section 6-2 has a planar structure, which makes it easier for the user to push the disassembly and assembly drive wrench 6 to switch the unlocking section 6-1 to the locking section 6-2 while avoiding self-rotation and slippage after the locking switch is completed.

[0035] In addition, in this embodiment, the inner insertion section 5-1, the transition section 5-2 and the slot section 5-3 in the locking cavity 5 are all provided with arc-shaped guide surfaces, so that when the locking member 9 moves to the inner limit position of the inner insertion section 5-1 or the transition section 5-2 under the drive of the transmission rod 8, it can gradually move towards the slot section 5-3 under the guidance of each guide surface, thereby facilitating the user's installation.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An office chair with a quick-release armrest structure, comprising a seat body (1) and an armrest body (2); the armrest body (2) has a plug-in section (4) at its end; the seat body (1) has an armrest slot that mates with the plug-in section (4); the plug-in section (4) is plugged into the armrest slot, characterized in that: It also includes a locking structure (3); The inner cavity of the armrest slot is provided with a snap-fit ​​cavity (5) that cooperates with the locking structure (3); the locking structure (3) is installed on the plug section (4) and can be embedded in the snap-fit ​​cavity (5) when the plug end of the armrest body (2) is inserted into the armrest slot; The locking structure (3) includes a disassembly and assembly drive wrench (6), a transmission rod (8), and a locking element (9); the inner end of the transmission rod (8) is rotatably engaged with the disassembly and assembly drive wrench (6); the locking element (9) is installed on the outer end of the transmission rod (8); the disassembly and assembly drive wrench (6) is provided with an eccentric wheel structure, which can drive the transmission rod (8) to retract when rotating, thereby realizing that the locking element (9) is embedded in the snap-fit ​​cavity (5).

2. An office chair with a quick-release armrest structure according to claim 1, characterized in that: The outer ring of the disassembly and assembly drive wrench (6) is divided into an unlocking section (6-1) and a locking section (6-2) in sequence; the distance from the unlocking section (6-1) to the rotating pin is less than the distance from the locking section (6-2) to the rotating pin, forming an eccentric wheel structure.

3. An office chair with a quick-release armrest structure according to claim 2, characterized in that: The unlocking section (6-1) of the disassembly and assembly drive wrench (6) has an arc-shaped structure, and the locking section (6-2) has a planar structure.

4. An office chair with a quick-release armrest structure according to claim 1, characterized in that: The locking structure (3) also includes a connecting support (7); the connecting support (7) has a connecting groove, the inner end of the transmission rod (8) passes through the connecting groove and is connected to the disassembly and assembly drive wrench (6); the transmission rod (8) has an elastic element; the inner end of the elastic element abuts against the connecting support (7) and is used to apply an outward thrust to the transmission rod (8).

5. An office chair with a quick-release armrest structure according to claim 4, characterized in that: The elastic element is a spring (10); the spring (10) is sleeved on the transmission rod (8).

6. An office chair with a quick-release armrest structure according to claim 1, characterized in that: The snap-fit ​​cavity (5) is divided into an inner insertion section (5-1), a transition section (5-2), and a slot section (5-3) connected in sequence; the transition section (5-2) and the slot section (5-3) form a hook-shaped structure at the outer end of the inner insertion section (5-1).

7. An office chair with a quick-release armrest structure according to claim 6, characterized in that: The insert section (5-1), transition section (5-2) and slot section (5-3) in the snap-fit ​​cavity (5) are all provided with arc-shaped guide surfaces.

8. An office chair with a quick-release armrest structure according to claim 1, characterized in that: The handrail body (2) has an installation groove that cooperates with the disassembly and assembly drive wrench (6); the disassembly and assembly drive wrench (6) is set in the installation groove; the handrail body (2) has an movable groove (11) that cooperates with the transmission rod (8); the inner end of the transmission rod (8) passes through the movable groove (11) and is connected to the disassembly and assembly drive wrench (6).

9. An office chair with a quick-release armrest structure according to claim 8, characterized in that: The movable groove (11) on the main body (2) of the handrail has a trumpet-shaped structure with a smaller inner part and a larger outer part.

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