A type of seat armrest

Abstract

This utility model belongs to the field of seat armrest technology and discloses a seat armrest, including a frame and a support assembly. The support assembly is fixed to the frame, and a mounting sleeve is rotatably inserted into one end of the frame. The mounting sleeve is fixedly connected to the seat back by a locking bolt. A set screw is threaded on the mounting sleeve, and a screw rod is rotatably installed on the internal thread of the frame. The end of the screw rod near the mounting sleeve can abut against the set screw. Through the rotatable insertion and connection between the frame and the mounting sleeve, combined with the pressure transmission structure of the screw rod and the set screw, the user can drive the screw rod to rotate by rotating the adjustment knob, thereby driving the frame to rotate around the mounting sleeve, realizing flexible adjustment of the armrest tilt angle. This solves the problem that traditional fixed structure armrests cannot be independently adjusted as the seat back tilts, can adapt to the sitting posture needs of different users, and significantly improves the riding comfort.

Description

Technical Field

[0001] This utility model relates to the field of seat armrest technology, and in particular to a seat armrest. Background Technology

[0002] As one of the core components of a seat, the armrest is usually installed on the backrest frame, and its design directly affects the user's comfort, safety and ease of use.

[0003] Traditional seat armrests are mostly fixed structures. When the seat back is tilted back, the armrests will also tilt back, making it impossible to adjust the tilt angle of the armrests according to the user's needs, thus reducing the comfort of the passengers.

[0004] Therefore, a type of seat armrest is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a seat armrest that solves or at least alleviates one or more of the aforementioned problems and other issues existing in the prior art.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A seat armrest includes a frame and a support assembly. The support assembly is fixed to the frame. A mounting sleeve is rotatably inserted into one end of the frame. The mounting sleeve is fixedly connected to the seat back by a locking bolt. A set screw is threaded onto the mounting sleeve. A screw is rotatably installed on the internal threads of the frame. The end of the screw near the mounting sleeve can abut against the set screw.

[0008] In a seat armrest according to the present invention, the frame has a nut mounting groove formed inside, a nut is provided inside the nut mounting groove, and the nut is threaded onto the screw.

[0009] In a seat armrest according to the present invention, a limiting groove is formed inside the frame, a screw passes through the limiting groove, and a retaining spring is installed on the screw, the retaining spring being able to abut against the inner wall of the end of the limiting groove away from the nut assembly groove.

[0010] In a seat armrest according to the present invention, the frame has a strip-shaped assembly groove formed inside, which communicates with the limiting groove. The end of the screw away from the nut assembly groove is rotatably installed in the limiting groove. A wire spring is installed at the bottom of the limiting groove, and the upper end of the wire spring abuts against the lower surface of the screw.

[0011] In a seat armrest according to the present invention, a top screw limiting groove is formed at one end of the frame near the nut assembly groove, and the top screw is rotatably disposed in the top screw limiting groove.

[0012] In a seat armrest according to the present invention, a limiting pin is inserted into one end of the frame near the top screw limiting groove to prevent the frame from rotating excessively.

[0013] In a seat armrest according to the present invention, an adjustment knob is fixedly sleeved after the end of the screw away from the set screw slides through the frame.

[0014] In a seat armrest according to the present invention, the top of the support assembly is provided with a decorative groove for mounting a decorative pad.

[0015] This utility model has at least the following beneficial effects:

[0016] By rotating and inserting the frame and the mounting sleeve, combined with the pressing and transmission structure of the screw and the set screw, the user can drive the screw to rotate by rotating the adjustment knob, which in turn drives the frame to rotate around the mounting sleeve, thus realizing flexible adjustment of the armrest tilt angle. This solves the problem that traditional fixed structure armrests cannot be adjusted independently as the seat back tilts, and can adapt to the sitting posture needs of different users, significantly improving riding comfort.

[0017] The nut in the nut assembly slot forms a stable threaded pair with the screw, which accurately converts the rotational motion of the screw into axial movement, ensuring the stability of the adjustment process;

[0018] The limiting groove works in conjunction with the snap ring to prevent the screw from disengaging from the frame, ensuring the continuous and effective operation of the transmission mechanism.

[0019] The wire spring provides upward support to the screw, preventing wobbling caused by gaps during adjustment and improving the overall stability of the structure.

[0020] The adjustment knob is directly fixed to the exposed end of the screw, allowing users to adjust the armrest angle with one hand without the need for tools, making it simple and effortless to operate.

[0021] The set screw limiting groove limits the set screw, preventing the mounting sleeve from detaching from the frame; the limiting pin limits the rotation angle of the frame, avoiding excessive rotation that could cause the screw to detach from the set screw or damage to components, ensuring that the adjustment process is carried out within a safe range. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0025] Figure 3 This is a partial structural schematic diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the skeleton of this utility model;

[0027] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0028] Explanation of icon numbers:

[0029] 1. Frame; 101. Limiting groove; 102. Strip assembly groove; 103. Nut assembly groove; 104. Set screw limiting groove; 2. Support assembly; 201. Decorative groove; 3. Mounting sleeve; 4. Locking bolt; 5. Set screw; 6. Screw; 601. Snap ring; 7. Nut; 8. Steel wire spring; 9. Limiting pin; 10. Adjusting knob. Detailed Implementation

[0030] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0031] Please refer to Figures 1 to 3 As shown, an embodiment of this utility model provides a seat armrest, including a frame 1 and a support assembly 2. The support assembly 2 is fixed on the frame 1. One end of the frame 1 is rotatably inserted with a mounting sleeve 3. The mounting sleeve 3 is fixedly connected to the seat back by a locking bolt 4. A set screw 5 is threaded on the mounting sleeve 3. A screw 6 is rotatably installed on the internal thread of the frame 1. The end of the screw 6 near the mounting sleeve 3 can abut against the set screw 5.

[0032] In this embodiment, the frame 1 serves as the basic structure, and the support assembly 2 provides elbow support. The mounting sleeve 3 is fixed to the seat back by the locking bolt 4, forming a hinge fulcrum. The set screw 5 is threaded onto the mounting sleeve 3. When the screw 6 rotates inside the frame 1, one end of it presses against the set screw 5. Since the set screw 5 is fixed, it drives the frame 1 to rotate around the mounting sleeve 3, thereby adjusting the angle or height of the armrest.

[0033] In this embodiment, the skeleton 1 has a nut assembly groove 103 formed inside, and a nut 7 is provided inside the nut assembly groove 103. The nut 7 is threadedly installed on the screw 6.

[0034] The nut mounting slot 103 provides a fixed mounting position for the nut 7. When the screw 6 rotates, the nut 7 cannot rotate because it is fixed to the frame 1. The rotational motion of the screw 6 is converted into axial movement through the threaded engagement. The threaded pair between the nut 7 and the screw 6 forms a mechanical transmission mechanism, ensuring that the rotation of the screw 6 can be stably transmitted to the set screw 5, achieving precise linear adjustment.

[0035] In this embodiment, the frame 1 has a limiting groove 101 formed inside, the screw 6 passes through the limiting groove 101, and a retaining spring 601 is installed on the screw 6. The retaining spring 601 can abut against the inner wall of the end of the limiting groove 101 away from the nut assembly groove 103.

[0036] The limiting groove 101 limits the axial movement range of the screw 6. The retaining ring 601 is installed on the screw 6. When the screw 6 moves away from the nut mounting groove 103, the retaining ring 601 abuts against the inner wall of the end of the limiting groove 101 to prevent the screw 6 from completely disengaging from the frame 1, ensuring that the screw 6 always remains in the mounting position and maintaining the stability of the transmission mechanism.

[0037] In this embodiment, the skeleton 1 has a strip-shaped assembly groove 102 that is connected to the limiting groove 101. The end of the screw 6 away from the nut assembly groove 103 is rotatably installed in the limiting groove 101. A wire spring 8 is installed at the bottom of the limiting groove 101, and the upper end of the wire spring 8 abuts against the lower surface of the screw 6.

[0038] A wire spring 8 is installed at the bottom of the limiting groove 101, and its upper end supports the screw 6, providing damping during the adjustment process and preventing the screw 6 from loosening.

[0039] In this embodiment, a top screw limiting groove 104 is formed at one end of the skeleton 1 near the nut assembly groove 103, and the top screw 5 is rotatably disposed in the top screw limiting groove 104.

[0040] Since the set screw 5 is fixedly connected to the mounting sleeve 3 by threads, and the mounting sleeve 3 is rigidly fixed to the seat back by the locking bolt 4, the position of the set screw 5 remains stable relative to the seat back. Therefore, when the set screw limiting groove 104 rotates with the frame 1, the set screw 5 will generate a lateral support force on the inner wall of the set screw limiting groove 104, which not only restricts the unexpected axial movement of the frame 1, but also provides guidance for the rotation of the frame 1.

[0041] In this embodiment, a limiting pin 9 is inserted into one end of the skeleton 1 near the top screw limiting groove 104 to prevent the skeleton 1 from rotating excessively.

[0042] The limiting pin 9 is inserted into the corresponding hole of the frame 1 and the top screw limiting groove 104. When the frame 1 rotates excessively around the mounting sleeve 3, the limiting pin 9 can abut against the top screw 5, thereby limiting the rotation angle range of the frame 1, preventing the screw 6 from separating from the top screw 5 or the structure from being damaged due to excessive rotation, and ensuring that the handrail adjustment is within a safe range.

[0043] In this embodiment, the end of the screw 6 away from the set screw 5 slides through the frame 1 and is then fixedly fitted with an adjustment knob 10.

[0044] The adjustment knob 10 is fixed to the exposed end of the screw 6, and the user can directly drive the screw 6 to rotate by rotating the knob 10.

[0045] In this embodiment, the top of the support assembly 2 is provided with a decorative groove 201 for installing a decorative pad.

[0046] Decorative groove 201 is located at the top of support assembly 2 and is used to embed or clip on decorative pads. Decorative pads can be made of soft materials (such as sponge or leather) to provide a more comfortable elbow contact feel, while the structure of decorative groove 201 ensures that the decorative pad is firmly fixed and prevents displacement during use, thereby improving the product's aesthetics and user experience.

[0047] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A type of armrest for a seat, characterized in that, The system includes a frame (1) and a support assembly (2). The support assembly (2) is fixed to the frame (1). One end of the frame (1) is rotatably inserted with an installation sleeve (3). The installation sleeve (3) is fixedly connected to the seat back by a locking bolt (4). A set screw (5) is threaded on the installation sleeve (3). A screw (6) is rotatably installed on the internal thread of the frame (1). The end of the screw (6) near the installation sleeve (3) can abut against the set screw (5).

2. The armrest of a seat according to claim 1, characterized in that: The skeleton (1) has a nut assembly groove (103) formed inside, and a nut (7) is provided inside the nut assembly groove (103). The nut (7) is threaded onto the screw (6).

3. A seat armrest according to claim 2, characterized in that: The skeleton (1) has a limiting groove (101) formed inside, the screw (6) passes through the limiting groove (101), and a retaining ring (601) is installed on the screw (6). The retaining ring (601) can abut against the inner wall of the end of the limiting groove (101) away from the nut assembly groove (103).

4. A seat armrest according to claim 3, characterized in that: The skeleton (1) has a strip-shaped assembly groove (102) that communicates with the limiting groove (101) inside. The end of the screw (6) away from the nut assembly groove (103) is rotatably installed in the limiting groove (101). A wire spring (8) is installed at the bottom of the inner side of the limiting groove (101), and the upper end of the wire spring (8) abuts against the lower surface of the screw (6).

5. A seat armrest according to claim 2, characterized in that: The frame (1) has a set screw limiting groove (104) formed at one end near the nut assembly groove (103), and the set screw (5) is rotatably disposed in the set screw limiting groove (104).

6. A seat armrest according to claim 5, characterized in that: A limiting pin (9) is inserted into one end of the skeleton (1) near the set screw limiting groove (104) to prevent the skeleton (1) from rotating excessively.

7. A seat armrest according to claim 1, characterized in that: The end of the screw (6) away from the set screw (5) slides through the skeleton (1) and is then fixedly fitted with an adjustment knob (10).

8. A seat armrest according to any one of claims 1-7, characterized in that: The top of the support assembly (2) is provided with a decorative groove (201) for installing a decorative pad.

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