CN221887976U - Armrest mounting structure of chair - Google Patents

Abstract

The utility model relates to an armrest mounting structure of a chair, comprising a seat frame, an armrest and a locking device, the seat frame comprising a backrest and a seating portion, the back of the backrest being provided with a transverse groove, and the backrest being provided with channels spaced apart along the length direction of the transverse groove; the armrest comprising a left armrest portion, a connecting portion and a right armrest portion, the connecting portion being spaced apart with a first bolt hole; the left armrest portion is fixed to the left side of the connecting portion, and the left armrest portion is provided with a left locking portion; the right armrest portion is fixed to the right side of the connecting portion, and the right armrest portion is provided with a right locking portion; in summary, this chair armrest mounting structure brings significant beneficial effects in terms of stability, flexibility, maintainability, comfort and structural simplification, thereby improving the overall quality of the chair and user experience.

Description

Armrest mounting structure of chair

Technical Field

The utility model relates to an armrest installation structure of a chair.

Background Art

In modern life, chairs are one of the indispensable furniture in people's daily life, playing an important role in different occasions and uses. The design and structure of chairs have a vital impact on people's comfort and safety. As an important part of the chair, the armrests of the chair can provide additional support and improve the comfort and stability of the passengers.

Conventional chair armrest mounting structures often use bolts or welding to connect the armrest to the base or backrest of the chair. However, these conventional connection methods have certain limitations, such as complex installation, easy damage, and difficult maintenance.

Utility Model Content

The utility model aims to provide a simple, stable and easy-to-maintain chair armrest mounting structure.

The purpose of the utility model is achieved in this way:

A chair armrest mounting structure comprises a chair frame, an armrest and a locking device, wherein the chair frame comprises a backrest and a seat portion, a back side of the backrest is provided with a transverse groove, and the backrest is provided with channels spaced apart along the length direction of the transverse groove;

The armrest comprises a left armrest portion, a connecting portion and a right armrest portion, wherein the connecting portion is spaced apart with first bolt holes;

The left armrest portion is fixed to the left side of the connecting portion, and the left armrest portion is provided with a left locking portion;

The right armrest portion is fixed to the right side of the connecting portion, and the right armrest portion is provided with a right locking portion;

The locking device comprises a first bolt, a washer, a second bolt and a third bolt, the washer is provided with a first through hole smaller than the head of the first bolt, the washer is fixed in the passage and close to the exit of the passage, the connecting portion is placed in the transverse groove, the first bolt passes through the passage of the backrest and the first through hole of the washer, and is inserted into the first bolt hole for locking;

The left locking portion is in close contact with the left bottom side of the seating portion, and the second bolt passes through the left locking portion to lock the left bottom side of the seating portion;

The right locking portion is in close contact with the bottom right side of the seating portion, and the third bolt passes through the right locking portion to lock the bottom right side of the seating portion.

Enhanced stability: The left armrest and the right armrest are respectively fixed on both sides of the connecting part, and the armrest is connected to the base or backrest of the chair through a locking device, which improves the stability of the armrest and the firmness of the overall structure, allowing passengers to use the chair more safely and stably.

Easy to maintain: The locking device is fixed with bolts, making the armrest parts easy to disassemble and replace, and convenient for maintenance personnel to clean and repair, reducing maintenance costs and maintenance difficulties, and extending the service life of the chair.

Improved comfort: The locking device between the armrest and the seat effectively avoids the discomfort caused by loose or shaking armrests, and improves the comfort and riding experience of the chair.

Simplified structure: The integrally formed left armrest, connecting part and right armrest design reduces the number of parts and installation steps, simplifies the structure of the chair, reduces production costs, and improves manufacturing efficiency.

In summary, this chair armrest mounting structure brings significant beneficial effects in terms of stability, flexibility, maintainability, comfort and structural simplification, and improves the overall quality of the chair and user experience.

The purpose of the utility model can also be solved by the following technical measures:

Furthermore, the left locking portion is spaced apart with second through holes, a second bolt hole is opened on the left side of the bottom of the seating portion, and the second bolt passes through the second through hole to lock the second bolt hole.

Enhanced stability: The second bolt passes through the second through hole of the left locking part and is locked to the second bolt hole on the left side of the bottom of the sitting part, thereby further strengthening the connection between the left armrest and the bottom and improving the overall stability and durability of the chair.

Reduce the risk of loosening: The introduction of the second bolt effectively prevents loosening or shaking between the left armrest part and the seat part, improves the safety and stability of the chair, and allows users to use the chair more safely and comfortably.

Optimized structural design: By adding a second through hole and a second bolt hole, the installation structure of the chair armrest is further optimized, making the connection stronger and tighter, while also making it easier to maintain and repair, thus extending the service life of the chair.

Improve user experience: The stable armrest structure and the design that reduces looseness can improve user comfort and riding experience, allowing users to feel more stable and comfortable support when using the chair, thereby improving overall user satisfaction.

In summary, the design of further adding a second through hole and a second bolt hole enhances the stability, durability and comfort of the chair armrest mounting structure, providing users with a more reliable and comfortable seating experience.

Furthermore, the right locking portion is spaced apart with third through holes, a third bolt hole is opened on the right side of the bottom of the seating portion, and the third bolt passes through the third through hole to lock the third bolt hole.

Comprehensive reinforcement: Through the third through hole of the right locking part and the third bolt hole on the right side of the bottom of the sitting part, as well as the introduction of the third bolt, the connection between the right armrest and the bottom of the chair is comprehensively reinforced, making the structure of the entire chair more solid and stable.

Prevent uneven loosening: The third bolt locking design between the right armrest part and the seat part effectively prevents the uneven loosening or shaking of the armrest during use, improving the overall stability and riding comfort of the chair.

Optimized installation design: By adding a third through hole on the right locking part and a third bolt hole on the right side of the bottom of the seating part, the installation structure design of the chair armrest is improved, making the connection more secure, and also easier to maintain and repair, thereby increasing the service life of the chair.

Improve user experience: The reinforced right armrest connection design can provide more stable and uniform support, making users feel more comfortable and at ease when using the chair, bringing users a more pleasant experience.

In summary, the further addition of the third through hole in the right locking part and the third bolt hole on the right side of the bottom of the seating part, as well as the locking design of the third bolt, further enhance the stability, durability and comfort of the chair armrest mounting structure, and improve the overall user satisfaction and usage experience.

Furthermore, a front sinking cavity larger than the diameter of a first bolt head is provided at a front port of the channel corresponding to the backrest portion, and a rear sinking cavity larger than the diameter of a gasket is provided at a rear port of the channel corresponding to the backrest portion, the first bolt head abuts against the front sinking cavity, and the gasket is fixed in the rear sinking cavity.

Enhanced stability: The design of the front sinking cavity ensures that the head of the first bolt is fully embedded in it, and the rear sinking cavity ensures that the gasket can be fully fixed inside the backrest. This design ensures the firmness of the armrest installation, prevents the armrest from shaking or loosening during use, and improves the stability of the entire chair.

Ensure safety: The head of the first bolt abuts against the front sinking cavity, which effectively prevents the armrest from loosening or falling off during use, ensuring the safety and comfort of the user when using the chair.

Prevent damage: The setting of the rear sinking cavity ensures that the gasket can be firmly fixed inside the backrest, avoiding damage caused by displacement or falling off of the gasket during use, and extending the service life of the locking device.

Improve assembly efficiency: Since the parts required for handrail installation can be accurately embedded in the corresponding sinking cavity, the assembly process is simplified and the assembly efficiency and production efficiency are improved.

Optimize aesthetics: The setting of the sinking cavity can hide the first bolt head and the gasket, making the appearance of the chair more neat and beautiful, improving the aesthetic value of the product and enhancing the user experience.

In summary, by setting the front and rear ports of the channel corresponding to the backrest, and the installation method of the first bolt head and the gasket, the stability, safety and aesthetics of the chair armrest installation structure are further enhanced, and the quality of the entire product and user experience are improved.

Furthermore, it also includes a locking bolt, the gasket is provided with a connecting ear, and the locking bolt passes through the connecting ear to lock the back portion.

Strengthen the connection stability: The locking bolt passes through the connecting ear to firmly connect the gasket to the backrest. This design ensures the stability of the locking device, effectively prevents the gasket and the backrest from loosening or falling off, and further strengthens the connection stability of the chair armrest.

Furthermore, it also includes a seat cover, which wraps the seat frame.

Protect the chair structure: The seat cover wraps the seat frame to form a protective layer, which can effectively protect the main structure of the chair from external damage, pollution or wear and tear, and extend the service life of the chair.

Enhanced comfort: The addition of seat covers can provide additional comfort, making the seat surface softer and more comfortable, reducing the pressure of sitting on the chair for a long time and improving the user's sitting comfort.

Improved aesthetics: The chair cover can provide a variety of appearance design options for the chair, and can be customized according to different styles and needs, which increases the aesthetics and decorativeness of the chair and improves the overall appearance texture of the product.

Improve the sense of quality: The addition of seat covers not only improves the comfort and aesthetics of the chair, but also adds a sense of high quality and high-end to the chair, which improves the quality image of the chair in the minds of users.

In summary, by adding the design of the seat cover, the protection, comfort, aesthetics and maintainability of the chair armrest mounting structure are further enhanced, thereby improving the user's overall experience and the product's market competitiveness.

Furthermore, the left armrest portion, the connecting portion and the right armrest portion are integrally formed.

Improve structural stability: The one-piece design makes the left armrest, the connecting part and the right armrest form a more solid overall structure, reducing the looseness and weak points of the connection, and improving the stability and structural strength of the chair armrest.

Simplified manufacturing process: One-piece molding reduces the use of connecting parts, simplifies the manufacturing process, reduces production costs, and improves production efficiency, making the product more competitive.

Improve the appearance: The one-piece design makes the chair armrest look neater and smoother, reduces gaps and defects at the joints, and improves the appearance and quality of the product.

Optimized user experience: The one-piece chair armrest design is more uniform and comfortable, providing more stable and ergonomic support, improving the user experience and comfort.

Enhanced Durability: The overall molded design reduces wear and looseness at the joints, improving the durability of the chair armrests and extending the life of the product.

To sum up, integrally molding the left armrest, the connecting portion and the right armrest not only improves the stability, aesthetics and usability of the chair armrest mounting structure, but also optimizes the manufacturing process and enhances the durability of the product, bringing users a better seating experience.

The beneficial effects of the utility model are as follows:

The utility model fixes the left armrest and the right armrest on both sides of the connecting part respectively, and connects the armrest with the base or the backrest of the chair through a locking device, thereby improving the stability of the armrest and the firmness of the overall structure, so that the occupant can use the chair more safely and stably.

The utility model adopts bolts to fix the locking device, so that the armrest parts are easy to disassemble and replace, which is convenient for maintenance personnel to clean and repair, thus reducing maintenance costs and maintenance difficulties and extending the service life of the chair.

The utility model provides a locking device between the armrest component and the seating part, which effectively avoids the discomfort caused by loosening or shaking of the armrest, and improves the comfort of the chair and the riding experience.

The utility model adopts an integrally formed left armrest, connecting portion and right armrest design, which reduces the number of parts and installation steps, simplifies the structure of the chair, reduces the production cost and improves the manufacturing efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a chair.

FIG. 2 is a schematic diagram of a chair from another angle.

FIG. 3 is a cross-sectional view of the chair.

FIG. 4 is a cross-sectional view of the chair from another angle.

Figure 5 is an assembly diagram of the chair.

FIG. 6 is an assembly diagram of the chair from another angle.

FIG. 7 is an exploded view of the chair.

FIG. 8 is an exploded view of the chair from another angle.

DETAILED DESCRIPTION

The utility model is further described below in conjunction with the accompanying drawings and embodiments:

Embodiment, as shown in FIG. 1 to FIG. 8 , a chair armrest mounting structure includes a seat frame 1, an armrest 2 and a locking device, wherein the seat frame 1 includes a backrest 11 and a seating portion 12, wherein a transverse groove 4 is formed on the back of the backrest 11, and channels 5 are formed at intervals along the length direction of the transverse groove 4;

The armrest 2 includes a left armrest portion 21, a connecting portion 22 and a right armrest portion 23, wherein the connecting portion 22 is spaced apart with first bolt holes 221;

The left armrest portion 21 is fixed to the left side of the connecting portion 22, and the left armrest portion 21 is provided with a left locking portion 211;

The right armrest portion 23 is fixed to the right side of the connecting portion 22, and the right armrest portion 23 is provided with a right locking portion 231;

The locking device comprises a first bolt 6, a washer 7, a second bolt (not shown in the figure) and a third bolt (not shown in the figure), the washer 7 is provided with a first through hole 71 smaller than the head of the first bolt 6, the washer 7 is fixed in the passage 5 and close to the exit of the passage 5, the connecting portion 22 is placed in the transverse groove 4, the first bolt 6 passes through the passage 5 of the backrest and the first through hole 71 of the washer 7, and is inserted into the first bolt hole 221 for locking;

The left locking portion 211 is in close contact with the left bottom side of the seating portion 12, and the second bolt passes through the left locking portion 211 to lock the left bottom side of the seating portion 12;

The right locking portion 231 is in close contact with the bottom right side of the seating portion 12 , and the third bolt passes through the right locking portion 231 to lock the bottom right side of the seating portion 12 .

Furthermore, the left locking portion 211 is spaced apart with second through holes 212 , and the bottom left side of the seating portion 12 is provided with a second bolt hole 121 , and the second bolt passes through the second through hole 212 to lock the second bolt hole 121 .

Furthermore, the right locking portion 231 is spaced apart with third through holes 232 , and the bottom right side of the seating portion 12 is provided with a third bolt hole 122 , and the third bolt passes through the third through hole 232 to lock the third bolt hole 122 .

Furthermore, the backrest 11 corresponds to the front port of the channel 5 and is provided with a front sinking cavity 51 which is larger than the diameter of the head of the first bolt 6 , and the backrest 11 corresponds to the rear port of the channel 5 and is provided with a rear sinking cavity 52 which is larger than the diameter of the gasket 7 .

Furthermore, the head of the first bolt 6 abuts against the front sinking cavity 51 , and the gasket is fixed in the rear sinking cavity 52 .

Furthermore, a locking bolt is also included. The gasket 7 is provided with a connecting ear 72 , and the locking bolt passes through the connecting ear 72 to lock the backrest portion 11 .

Furthermore, it also includes a seat cover 8, and the seat cover 8 wraps the seat frame 1.

Furthermore, the left armrest portion 21, the connecting portion 22 and the right armrest portion 23 are integrally formed.

Claims (7)

1. The utility model provides a chair armrest mounting structure, includes seat support body, handrail and locking device, the seat support body includes back portion and sitting portion, its characterized in that: the back of the backrest part is provided with a transverse groove, and the backrest part is provided with channels at intervals along the length direction of the transverse groove;

The handrail comprises a left handrail part, a connecting part and a right handrail part, wherein first bolt holes are formed in the connecting part at intervals;

The left handrail part is fixed at the left side of the connecting part and is provided with a left locking part;

The right handrail part is fixed on the right side of the connecting part and is provided with a right locking part;

The locking device comprises a first bolt, a gasket, a second bolt and a third bolt, wherein the gasket is provided with a first through hole with a size smaller than that of the head part of the first bolt, the gasket is fixed in the channel and is close to the outlet of the channel, the connecting part is arranged in the transverse groove, and the first bolt penetrates through the channel of the backrest and the first through hole of the gasket to be inserted into the first bolt hole for locking;

The left locking part is tightly attached to the left side of the bottom of the riding part, and the second bolt penetrates through the left locking part to lock the left side of the bottom of the riding part;

The right locking part is tightly attached to the right side of the bottom of the riding part, and the third bolt penetrates through the right locking part to lock the right side of the bottom of the riding part.

2. The armrest mounting structure of a chair according to claim 1, wherein: the left locking part is provided with second through holes at intervals, a second bolt hole is formed in the left side of the bottom of the riding part, and the second bolt penetrates through the second through holes to lock the second bolt hole.

3. The armrest mounting structure of a chair according to claim 1, wherein: the right locking part is provided with third through holes at intervals, a third bolt hole is formed in the right side of the bottom of the riding part, and the third bolt penetrates through the third through holes to lock the third bolt hole.

4. The armrest mounting structure of a chair according to claim 1, wherein: the front port of the backrest part corresponding to the channel is provided with a front sinking cavity with the diameter larger than that of the first bolt head, the rear port of the backrest part corresponding to the channel is provided with a rear sinking cavity with the diameter larger than that of the gasket, the first bolt head is propped against the front sinking cavity, and the gasket is fixed in the rear sinking cavity.

5. The armrest mounting structure of a chair according to claim 1, wherein: the locking bolt is provided with a connecting lug, and the locking bolt penetrates through the connecting lug to be locked against the back.

6. The armrest mounting structure of a chair according to claim 1, wherein: the chair also comprises a chair cover, wherein the chair cover is wrapped on the chair frame body.

7. The armrest mounting structure of a chair according to claim 1, wherein: the left handrail part, the connecting part and the right handrail part are integrally formed.