An adjustable armrest for a bus seat
By designing adjustable bus seat handrails, and utilizing components such as fixed blocks, rotating rods, and support rods, the adjustable support area of the handrails is achieved, solving the problem of arm muscle tension and soreness caused by traditional handrails, and improving riding comfort and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING RUILI AUTOMOBILE FITTING CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional bus seat armrests cannot adjust the contact area, leading to problems such as tight and sore arm muscles.
An adjustable handrail was designed, which, by setting a fixed block, a rotating rod, a limiting component, a support rod, and a pressing component, achieves an adjustable support area for the handrail, ensuring a more even distribution of contact points between the arm and the handrail.
It solves the problem of tight and sore arm muscles, and improves riding comfort and safety.
Smart Images
Figure CN224447563U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of bus seat armrests, and particularly relates to an adjustable armrest for a bus seat. Background Technology
[0002] Bus seat armrests are auxiliary support devices installed on the sides (usually the outer or both sides) of bus seats. They are functional components primarily used to provide passengers with stability, assist in getting up and sitting down, and improve riding comfort. They are an indispensable detail in bus seat design, directly affecting passenger safety and experience.
[0003] Traditional bus seat armrests do not allow for adjustment of the contact area. When passengers are large and have thick arms, the contact point between their forearm and the armrest is concentrated in a localized area, increasing the force per unit area. Prolonged support can lead to muscle tension and soreness in the arms. Therefore, we propose an adjustable armrest for bus seats. Utility Model Content
[0004] The purpose of this invention is to provide an adjustable armrest for a bus seat to solve the problems mentioned in the background art.
[0005] In view of this, the present invention provides an adjustable armrest for a bus seat, including an armrest and further comprising:
[0006] Multiple fixed blocks are fixedly connected to both sides of the handrail, and two rotating rods are rotatably connected between the multiple fixed blocks. The rotating rods have slots and multiple first support rods are fixedly connected to the bottom surface of the rotating rods.
[0007] A limiting component, located inside the handrail, is used to fix two rotating rods;
[0008] Multiple second support rods are provided on one side of multiple first support rods. Each second support rod has a limiting groove that communicates with the outside. A limiting block that is fixed to the first support rod is slidably connected in the limiting groove.
[0009] Two fixed rods are respectively fixedly connected to the bottom ends of a plurality of second support rods;
[0010] Two compression components are located in two handrails respectively and are used to fix corresponding multiple limiting blocks.
[0011] Based on the above structure, the fixed blocks and rotating rods ensure that the two rotating rods can rotate between multiple fixed blocks. The limiting components and slots ensure that the user can fix the two rotating rods to the appropriate position through the limiting components and two slots. The first support rod, second support rod, limiting groove, limiting block, and fixed rod ensure that when the user pulls the fixed rod, the fixed rod will drive multiple second support rods to move, allowing multiple limiting blocks to move relative to each other along multiple limiting grooves. When the multiple second support rods are adjusted to the appropriate position, the multiple first support rods and multiple second support rods can form a larger support area. The pressing component ensures that the user can fix multiple limiting blocks in multiple limiting grooves through the pressing component.
[0012] In the above technical solution, the limiting component includes:
[0013] Two first sliding grooves are formed inside the handrail and connected to the outside. Two insert plates are slidably connected in each of the two first sliding grooves. Two tension springs that are fixed to the inner wall of the first sliding groove are fixedly connected to the insert plates. An extrusion groove is formed on the bottom surface of the insert plates.
[0014] The second slide groove is formed inside the handrail and is connected to the two first slide grooves. A pressing block is slidably connected inside the second slide groove, and both ends of the pressing block extend into the two pressing grooves respectively and are in contact with the inner walls of the two pressing grooves respectively. A first threaded rod is threadedly connected inside the pressing block, and one end of the first threaded rod passes through the inner wall of the second slide groove and extends to the outside to be rotatably connected to the handrail.
[0015] In this technical solution, it is ensured that the two rotating rods can be fixed between multiple fixed blocks.
[0016] In the above technical solution, the two ends of the extrusion block are inclined, and one end of the two insert plates is respectively inserted into two slots.
[0017] In this technical solution, it is ensured that when the extrusion block moves, both ends of the extrusion block can respectively extrude the inner walls of the two extrusion grooves, so that one end of the two insert plates moves away from each other, and that when the two insert plates move, one end of the two insert plates can be respectively inserted into the two slots.
[0018] In the above technical solution, the two ends of the extrusion block are respectively inserted into two extrusion grooves.
[0019] In this technical solution, it is ensured that when the extrusion block is moved to the appropriate position, both ends of the extrusion block can be inserted into the two extrusion grooves respectively.
[0020] In the above technical solution, the extrusion assembly includes:
[0021] Multiple third slide grooves are formed between multiple second support rods and fixed rods. Each third slide groove is slidably connected to an extrusion plate, and each extrusion plate is threadedly connected to multiple second threaded rods.
[0022] Multiple connecting grooves are formed inside the fixed rod and are respectively connected to multiple third sliding grooves. Multiple connecting rods are rotatably connected in the multiple connecting grooves, and the two ends of the multiple connecting rods extend into the multiple third sliding grooves and are respectively fixed to multiple second threaded rods. One end of one of the second threaded rods is fixedly connected to a rotating rod, and one end of the rotating rod passes through the inner wall of one of the third sliding grooves and extends to the outside to be rotatably connected to the fixed rod.
[0023] A fixing component is located on the periphery of the rotating rod and is used to fix the rotating rod.
[0024] In this technical solution, it is ensured that multiple limit blocks can be fixed in multiple limit slots respectively.
[0025] In the above technical solution, the fixing component includes:
[0026] A threaded groove is formed on the circumference of the rotating rod, and a threaded sleeve is threadedly connected to the threaded groove.
[0027] In this technical solution, it is ensured that the rotating rod will not be affected by external factors and will not rotate.
[0028] In the above technical solution, the two ends of the multiple connecting rods are respectively rotatably connected to multiple third sliding grooves.
[0029] In this technical solution, it is ensured that when multiple connecting rods rotate, the two ends of the multiple connecting rods can rotate normally in multiple third slides respectively.
[0030] In the above technical solution, the threads on the multiple second threaded rods have the same direction of rotation and the same thread pitch.
[0031] In this technical solution, it is ensured that when multiple second threaded rods rotate, multiple extrusion plates can be acted upon by the threads of the multiple second threaded rods respectively, and move simultaneously.
[0032] The beneficial effects of this utility model are:
[0033] 1. The adjustable armrest of this bus seat, through the setting of fixed blocks and rotating rods, ensures that two rotating rods can rotate between multiple fixed blocks. Through the setting of limiting components and slots, it ensures that the user can fix the two rotating rods in the appropriate position through the limiting components and two slots. Through the setting of first support rod, second support rod, limiting groove, limiting block and fixed rod, it ensures that when the user pulls the fixed rod, the fixed rod will drive multiple second support rods to move, allowing multiple limiting blocks to move relative to each other along multiple limiting grooves. When multiple second support rods are adjusted to the appropriate position, multiple first support rods and multiple second support rods can form a larger support area. Through the setting of compression components, it ensures that the user can fix multiple limiting blocks in multiple limiting grooves through the compression components. This solves the problem that when passengers are large and have thick arms, the contact point between the forearm and the armrest is concentrated in a local area, the force per unit area is increased, and long-term support will cause problems such as arm muscle tension and soreness.
[0034] 2. The adjustable armrests of the bus seats are secured by a fixed component, ensuring that the user can fix the rotating rod within the fixed rod and prevent it from rotating due to external influences. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0036] Figure 2 This is one of the schematic diagrams of the internal structure of the handrail in this utility model;
[0037] Figure 3 This is the second schematic diagram of the internal structure of the handrail in this utility model;
[0038] Figure 4 This is the third schematic diagram of the internal structure of the handrail in this utility model;
[0039] Figure 5 This is one of the internal structural diagrams of the multiple second support rods and fixing rods in this utility model;
[0040] Figure 6 This is the second schematic diagram of the internal structure of the multiple second support rods and fixing rods in this utility model;
[0041] Figure 7 This utility model Figure 5 Enlarged structural diagram at point A in the middle.
[0042] The markings in the diagram are as follows:
[0043] 1. Handrail; 2. Fixing block; 3. Rotating rod; 4. Slot; 5. First support rod; 6. Second support rod; 7. Limiting groove; 8. Limiting block; 9. Fixing rod; 10. First sliding groove; 11. Insert plate; 12. Tension spring; 13. Extrusion groove; 14. Second sliding groove; 15. Extrusion block; 16. First threaded rod; 17. Third sliding groove; 18. Extrusion plate; 19. Second threaded rod; 20. Connecting groove; 21. Connecting rod; 22. Rotating rod; 23. Threaded groove; 24. Threaded sleeve. Detailed Implementation
[0044] The following is in conjunction with the appendix Figure 1 - Figure 7 This application will be described in further detail.
[0045] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0046] Example 1: This example provides an adjustable armrest for a bus seat, including armrest 1, and further comprising:
[0047] Multiple fixing blocks 2 are fixedly connected to both sides of the handrail 1. Two rotating rods 3 are rotatably connected between the multiple fixing blocks 2. The rotating rods 3 are provided with slots 4. Multiple first support rods 5 are fixedly connected to the bottom surface of the rotating rods 3.
[0048] A limiting component is located inside the handrail 1 and is used to fix the two rotating rods 3.
[0049] Multiple first support rods 5 are provided on one side with multiple second support rods 6. The second support rods 6 have a limiting groove 7 that communicates with the outside. A limiting block 8 that is fixed to the first support rods 5 is slidably connected in the limiting groove 7.
[0050] Two fixing rods 9 are fixedly connected to the bottom ends of multiple second support rods 6 respectively;
[0051] Two compression components are located in the two handrails 1 respectively, and are used to fix the corresponding multiple limit blocks 8 respectively.
[0052] Example 2: This example provides an adjustable armrest for a bus seat. In addition to the technical solutions described in the above examples, it also has the following technical features, including a limiting component:
[0053] Two first slide grooves 10 are formed inside the handrail 1 and connected to the outside. Two insert plates 11 are slidably connected inside the two first slide grooves 10. Two tension springs 12 fixed to the inner wall of the first slide groove 10 are fixedly connected to the insert plates 11. An extrusion groove 13 is formed on the bottom surface of the insert plates 11.
[0054] The second slide groove 14 is formed inside the handrail 1 and is connected to the two first slide grooves 10. A pressing block 15 is slidably connected inside the second slide groove 14, and both ends of the pressing block 15 extend into the two pressing grooves 13 respectively and are in contact with the inner walls of the two pressing grooves 13 respectively. A first threaded rod 16 is threadedly connected inside the pressing block 15, and one end of the first threaded rod 16 passes through the inner wall of the second slide groove 14 and extends to the outside to be rotatably connected to the handrail 1.
[0055] In use, the user manually rotates the first threaded rod 16, causing the pressing block 15 to move upward along the second slide groove 14 under the action of the thread of the first threaded rod 16. This causes the two ends of the pressing block 15 to press against the inner walls of the two pressing grooves 13, causing one end of the two insert plates 11 to move away from each other and stretching multiple tension springs 12. When the two insert plates 11 move away from each other to a suitable position, one end of the two insert plates 11 will be inserted from the two first slide grooves 10 into the two slots 4, fixing the two rotating rods 3 between multiple fixing blocks 2, ensuring that the two rotating rods 3 can be fixed between multiple fixing blocks 2.
[0056] Example 3: This example provides an adjustable handrail for a bus seat. In addition to the technical solutions of the above examples, it also has the following technical features: the two ends of the compression block 15 are inclined, and one end of the two insert plates 11 is respectively inserted into the two slots 4.
[0057] Specifically, when the extrusion block 15 moves, both ends of the extrusion block 15 can respectively extrude the inner walls of the two extrusion grooves 13, so that one end of the two insert plates 11 moves away from each other, and ensures that when the two insert plates 11 move, one end of the two insert plates 11 can be respectively inserted into the two slots 4.
[0058] Example 4: This example provides an adjustable handrail for a bus seat. In addition to the technical solutions of the above examples, it also has the following technical features: the two ends of the extrusion block 15 are respectively inserted into and engaged with two extrusion grooves 13.
[0059] Specifically, it is ensured that when the extrusion block 15 is moved to the appropriate position, both ends of the extrusion block 15 can be inserted into the two extrusion grooves 13 respectively.
[0060] Example 5: This example provides an adjustable armrest for a bus seat. In addition to the technical solutions described in the above examples, it also has the following technical features: the compression component includes:
[0061] Multiple third slide grooves 17 are formed between multiple second support rods 6 and fixed rods 9. A pressing plate 18 is slidably connected in the third slide groove 17. Multiple second threaded rods 19 are threadedly connected in the multiple pressing plates 18 respectively.
[0062] Multiple connecting grooves 20 are formed inside the fixed rod 9 and are respectively connected to multiple third sliding grooves 17. Multiple connecting rods 21 are rotatably connected in the multiple connecting grooves 20, and the two ends of the multiple connecting rods 21 extend into the multiple third sliding grooves 17 and are respectively fixed to multiple second threaded rods 19. One end of one of the second threaded rods 19 is fixedly connected to a rotating rod 22, and one end of the rotating rod 22 passes through the inner wall of one of the third sliding grooves 17 and extends to the outside and is rotatably connected to the fixed rod 9.
[0063] A fixing component is located on the periphery of the rotating rod 22 and is used to fix the rotating rod 22.
[0064] In use, the user manually rotates the rotating rod 22, causing one of the second threaded rods 19 to rotate within one of the third sliding grooves 17. When one of the second threaded rods 19 rotates, it drives the other second threaded rods 19 to rotate via multiple connecting rods 21. When the multiple second threaded rods 19 rotate, the multiple pressing plates 18 are respectively acted upon by the threads of the multiple second threaded rods 19, and move along the multiple third sliding grooves 17 toward the multiple limiting blocks 8. This causes the multiple pressing plates 18 to press the multiple limiting blocks 8, fixing the multiple limiting blocks 8 within the multiple limiting grooves 7 so that they cannot move, ensuring that the multiple limiting blocks 8 can be fixed within the multiple limiting grooves 7.
[0065] Example 6: This example provides an adjustable armrest for a bus seat. In addition to the technical solutions described in the above examples, it also has the following technical features: the fixing components include:
[0066] Threaded groove 23 is formed on the circumference of rotating rod 22, and threaded sleeve 24 is threadedly connected to threaded groove 23.
[0067] In use, the user rotates the threaded sleeve 24 by hand, causing the threaded sleeve 24 to move towards the fixed rod 9 under the action of the threaded groove 23. This makes the threaded sleeve 24 tightly pressed against the fixed rod 9, fixing the rotating rod 22 inside the fixed rod 9 and preventing it from rotating, thus ensuring that the rotating rod 22 will not be affected by external factors and will not rotate.
[0068] Example 7: This example provides an adjustable handrail for a bus seat. In addition to the technical solutions of the above examples, it also has the following technical features: the two ends of the multiple connecting rods 21 are respectively rotatably connected to multiple third sliding grooves 17.
[0069] Specifically, it is ensured that when multiple connecting rods 21 rotate, both ends of the multiple connecting rods 21 can rotate normally within the multiple third slide grooves 17 respectively.
[0070] Example 8: This example provides an adjustable handrail for a bus seat. In addition to the technical solutions of the above examples, it also has the following technical features: the threads on the multiple second threaded rods 19 have the same direction of rotation and the same thread pitch.
[0071] Specifically, it is ensured that when the multiple second threaded rods 19 rotate, the multiple extrusion plates 18 can be acted upon by the threads of the multiple second threaded rods 19 respectively, and move simultaneously.
[0072] Working principle:
[0073] In use, the user rotates the two rotating rods 3 by hand. When the two rotating rods 3 are rotated to the appropriate position, the user rotates the first threaded rod 16 by hand, so that the pressing block 15 moves upward along the second slide groove 14 under the action of the thread of the first threaded rod 16. This causes the two ends of the pressing block 15 to press the inner walls of the two pressing grooves 13 respectively, so that one end of the two insert plates 11 moves away from each other and stretches multiple tension springs 12 respectively. When the two insert plates 11 move away from each other to the appropriate position, one end of the two insert plates 11 will be inserted into the two slots 4 from the two first slide grooves 10 respectively, fixing the two rotating rods 3 between multiple fixing blocks 2, ensuring that the two rotating rods 3 can be fixed between multiple fixing blocks 2.
[0074] In use, the user pulls the fixed rod 9 by hand, causing the fixed rod 9 to move multiple second support rods 6, so that multiple limit blocks 8 move relative to each other along multiple limit grooves 7, ensuring that the user can adjust the bearing area of the overall device. When the fixed rod 9 moves to the appropriate position, the user rotates the rotating rod 22 by hand, so that the rotating rod 22 drives one of the second threaded rods 19 to rotate in one of the third slide grooves 17. When one of the second threaded rods 19 rotates, it will drive the other multiple second threaded rods 19 to rotate through multiple connecting rods 21. When multiple second threaded rods 19 rotate, multiple extrusion plates 18 will be acted on by the threads of multiple second threaded rods 19, and move along multiple third slide grooves 17 toward multiple limit blocks 8, so that multiple extrusion plates 18 extrude multiple limit blocks 8, fixing multiple limit blocks 8 in multiple limit grooves 7 and preventing them from moving, ensuring that multiple limit blocks 8 can be fixed in multiple limit grooves 7.
[0075] When in use, the user rotates the threaded sleeve 24 by hand, so that the threaded sleeve 24 is moved towards the fixed rod 9 by the action of the threaded groove 23, so that the threaded sleeve 24 is tightly pressed against the fixed rod 9, fixing the rotating rod 22 in the fixed rod 9 and preventing it from rotating, thus ensuring that the rotating rod 22 will not be affected by external factors and will not rotate.
[0076] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. An adjustable armrest of a bus seat, comprising an armrest (1), characterized in that, Also includes: Multiple fixing blocks (2) are fixedly connected to both sides of the handrail (1). Two rotating rods (3) are rotatably connected between the multiple fixing blocks (2). Slots (4) are provided on the rotating rods (3). Multiple first support rods (5) are fixedly connected to the bottom surface of the rotating rods (3). A limiting component is located inside the handrail (1) and is used to fix the two rotating rods (3); Multiple second support rods (6) are provided on one side of multiple first support rods (5). A limiting groove (7) communicating with the outside is provided in the second support rod (6). A limiting block (8) fixed to the first support rod (5) is slidably connected in the limiting groove (7). Two fixed rods (9) are respectively fixedly connected to the bottom ends of multiple second support rods (6); Two compression components are located in two handrails (1) respectively, and are used to fix the corresponding multiple limiting blocks (8).
2. An adjustable armrest for a bus seat according to claim 1, characterized in that The limiting component includes: Two first slide grooves (10) are opened in the handrail (1) and connected to the outside. Two insert plates (11) are slidably connected in the two first slide grooves (10). Two tension springs (12) fixed to the inner wall of the first slide groove (10) are fixedly connected on the insert plate (11). An extrusion groove (13) is opened on the bottom surface of the insert plate (11). The second slide (14) is opened in the handrail (1) and is connected to the two first slides (10). The second slide (14) is slidably connected to the extrusion block (15), and the two ends of the extrusion block (15) extend into the two extrusion grooves (13) respectively, and are in contact with the inner walls of the two extrusion grooves (13) respectively. The extrusion block (15) is threadedly connected to the first threaded rod (16), and one end of the first threaded rod (16) passes through the inner wall of the second slide (14) and extends to the outside to be rotatably connected to the handrail (1).
3. An adjustable armrest for a bus seat according to claim 2, wherein The two ends of the extrusion block (15) are inclined, and one end of the two insert plates (11) are respectively inserted into the two slots (4).
4. An adjustable armrest for a bus seat according to claim 2, wherein The two ends of the extrusion block (15) are respectively inserted into the two extrusion grooves (13).
5. An adjustable armrest for a bus seat according to claim 1, wherein The extrusion assembly includes: Multiple third slide grooves (17) are formed between multiple second support rods (6) and fixed rods (9). A pressing plate (18) is slidably connected in the third slide groove (17), and multiple second threaded rods (19) are threadedly connected in the pressing plate (18). Multiple connecting grooves (20) are formed in the fixed rod (9) and are respectively connected to multiple third sliding grooves (17). Multiple connecting rods (21) are rotatably connected in the multiple connecting grooves (20), and the two ends of the multiple connecting rods (21) extend into the multiple third sliding grooves (17) and are respectively fixed to multiple second threaded rods (19). One end of one of the second threaded rods (19) is fixedly connected to a rotating rod (22), and one end of the rotating rod (22) passes through the inner wall of one of the third sliding grooves (17) and extends to the outside and is rotatably connected to the fixed rod (9). A fixing component is located on the periphery of the rotating rod (22) and is used to fix the rotating rod (22).
6. An adjustable armrest for a bus seat according to claim 5, wherein The fixing component includes: A threaded groove (23) is formed on the circumference of the rotating rod (22), and a threaded sleeve (24) is threadedly connected to the threaded groove (23).
7. An adjustable armrest for a bus seat according to claim 5, wherein The two ends of the multiple connecting rods (21) are respectively rotatably connected to multiple third slides (17).
8. An adjustable armrest for a bus seat according to claim 5, wherein, The threads on the multiple second threaded rods (19) have the same direction of rotation and the same thread pitch.