Height-adjustable armrest structure

Abstract

The utility model relates to the technical field of height-adjustable armrest structures, and discloses a height-adjustable armrest structure which comprises a machine body, two fixing plates are fixedly connected to the rear end of the machine body and are evenly distributed at the rear end of the machine body, and armrest handles are connected to the two sides of each fixing plate. Three round holes are formed in the surface of the armrest handle and evenly distributed in the surface of the armrest handle, and the inner diameter of each round hole is connected with a threaded rod through threads. A worker pulls a pull ring outwards, the pull ring drives the surface of a connecting block to slide outwards in an inner cavity of a sleeve, the surface of an inserting rod is driven to be gradually separated from the inner diameter of an inserting hole while the connecting block moves, and at the moment, the worker can pull an operating handle upwards to adjust the height. Workers can adjust the height of the operating handle according to the heights of different people, and operation is convenient, coordinated and comfortable.

Description

Technical Field

[0001] The utility model relates to the technical field of height-adjustable armrest structures, in particular to a height-adjustable armrest structure. Background Art

[0002] A lawn mower is a mechanical tool used to mow lawns, vegetation, etc. It consists of a cutter disc, an engine, running wheels, a traveling mechanism, a cutter head, an armrest, and a control part. When working, the operator needs to hold the armrest to control it by hand. Since different people have different heights, the height of the armrest must be adjustable. By adjusting the height of the armrest, the operator can be in a comfortable operating state.

[0003] A Chinese patent discloses an armrest structure (authorization announcement number CN2558271Y), and the patented technology includes: two armrest handles, combined on both sides of the armrest component; one left and one right operating handle welded parts are installed on both sides of the armrest component; the two operating handles are respectively installed on the left and right operating handle welded parts, and the two are fixed by a locking piece to form an armrest structure. The utility model can firmly clamp a fixed plate with a round rod-shaped cross-section, so that the armrest is not only simple in structure, but also more beautiful in appearance.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the existing armrest structure is unable to adjust the height of the armrest body, resulting in the armrest being unable to be height-adjusted according to the heights of different people, which limits the applicability of the armrest itself, making it inconvenient for staff to operate and reducing the user's coordination and comfort. Utility Model Content

[0005] The technical problem to be solved by the utility model is that: the prior art has the disadvantage that the armrest body cannot be height-adjusted, and for this reason, we propose an armrest structure with adjustable height.

[0006] The utility model solves the technical problem by adopting the following technical scheme: an armrest structure with adjustable height, comprising a body, a fixing plate fixedly connected to the rear end of the body, two fixing plates being evenly distributed on the rear end of the body, armrest handles being connected to both sides of the fixing plate, a circular hole being provided on the surface of the armrest handle, three circular holes being evenly distributed on the surface of the armrest handle, a threaded rod being connected to the inner diameter of the circular hole by a thread, the surface of the threaded rod being threadedly connected to the inner parts of both sides of the fixing plate, a fixing sheet being fixedly connected to the rear end of the body, a connecting rod being fixedly connected to one end of the fixing sheet away from each other, a left operating handle welding part being fixedly connected to the surface of the connecting rod, an operating handle being installed on the top end of the left operating handle welding part, L-shaped blocks being fixedly connected to the surfaces of both sides of the operating handle, a sleeve being fixedly connected to the surface of the L-shaped block, a connecting block being slidably connected to the inner cavity of the sleeve, a pull ring being fixedly connected to the right end of the connecting block, and a telescopic rod being slidably connected to the inner cavity of the operating handle.

[0007] Preferably, the telescopic rod is provided with a socket, the number of which is three and evenly distributed on the surface of the telescopic rod, the inner diameter of the socket is slidably connected with an insertion rod, and the ends of the insertion rods that are away from each other are fixedly connected to the slider.

[0008] Preferably, a tension spring is fixedly connected to the surface of the L-shaped block, one end of the tension spring away from each other is fixedly connected to the surface of the connecting block, and the inner diameter of the tension spring is slidably connected to the surface of the insertion rod.

[0009] Preferably, both sides of the sleeve are provided with sliding grooves, the inner cavities of the sliding grooves are slidably connected with sliders, and the ends of the sliders close to each other are fixedly connected to the two sides of the connecting block.

[0010] Preferably, a fixing plate is fixedly connected to the top of the left operating handle weldment, a fixing hole is provided on the surface of the fixing plate, the number of the fixing holes is several and evenly distributed on the surface of the fixing plate, a rotating shaft is fixedly connected to the surface of the inner cavity of the fixing plate, an adjusting plate is rotatably connected to the surface of the rotating shaft, the top of the adjusting plate is fixedly connected to the bottom end of the telescopic rod, a hollow groove is provided inside the adjusting plate, a sliding piece is slidably connected to the inner cavity of the hollow groove, the number of the sliding pieces is two and evenly distributed on both sides of the inner cavity of the hollow groove, one end of the sliding piece away from each other is fixedly connected to a fixing rod, the surface of the fixing rod is slidably connected to the inner diameter of the fixing hole, and the surface of the fixing rod is fixedly connected to a pull tab.

[0011] Preferably, one end of the sliding plates close to each other is fixedly connected with a pressure spring, and the surface of the pressure spring is used for sliding connection with the inner cavity of the hollow groove.

[0012] Technical effects and advantages of the utility model:

[0013] In the utility model, the staff pulls the pull ring outward, so that the pull ring drives the surface of the connecting block to slide outward in the inner cavity of the sleeve. While the connecting block moves, it drives the surface of the insertion rod to gradually separate from the inner diameter of the insertion hole. At this time, the staff can pull the operating handle upward to adjust the height. Through the arrangement of the above structure, the staff can adjust the height of the operating handle according to the height of different people, and the operation is convenient, coordinated and comfortable.

[0014] In the utility model, the staff pushes the pull tab inward, so that the pull tab drives the surface of the fixing rod to move inward, and the pull tab moves inward and drives the surface of the sliding plate to slide in the inner cavity of the hollow groove. As the fixing rod moves inward, the surface of the fixing rod gradually separates from the inner diameter of the fixing hole. At this time, the staff can adjust the angle of the operating handle according to their needs. Through the setting of the above structure, the staff can adjust the angle of the operating handle according to their own needs, which is convenient for different staff to better hold the device, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A partial structural cross-sectional view;

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at A;

[0018] Figure 4 For this utility model Figure 1 A partial structural cross-sectional view of

[0019] Figure 5 For this utility model Figure 4 A schematic diagram of the structure at B;

[0020] Figure 6 For this utility model Figure 1 A partial structural cross-sectional view of

[0021] Figure 7 For this utility model Figure 6 Enlarged schematic diagram of the structure at location C.

[0022] Legend: 1. Machine body; 2. Fixing plate; 3. Handlebar; 4. Round hole; 5. Threaded rod; 6. Fixing plate; 7. Connecting rod; 8. Left operating handle weldment; 9. Operating handle; 10. L-shaped block; 11. Sleeve; 12. Connecting block; 13. Pull ring; 14. Telescopic rod; 15. Socket; 16. Insert rod; 17. Tension spring; 18. Slide groove; 19. Slider; 20. Fixed disk; 21. Fixed hole; 22. Rotating shaft; 23. Adjusting disk; 24. Hollow groove; 25. Slide; 26. Fixed rod; 27. Pull tab; 28. Pressure spring. DETAILED DESCRIPTION

[0023] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] Reference Figure 1 - Figure 5 As shown, the utility model provides a technical solution: an adjustable height armrest structure, including a body 1, a fixing plate 2 is fixedly connected to the rear end of the body 1, the number of the fixing plates 2 is two and evenly distributed at the rear end of the body 1, both sides of the fixing plate 2 are connected to armrest handles 3, the surface of the armrest handle 3 is provided with round holes 4, the number of the round holes 4 is three and evenly distributed on the surface of the armrest handle 3, the inner diameter of the round hole 4 is connected to a threaded rod 5 through a thread, the surface of the threaded rod 5 is threadedly connected to the inner part of the two sides of the fixing plate 2, the body 1 are fixedly connected to the rear ends of the fixing plates 6, the ends of the fixing plates 6 that are away from each other are fixedly connected to the connecting rod 7, the surface of the connecting rod 7 is fixedly connected to the left operating handle welding piece 8, the top of the left operating handle welding piece 8 is installed with an operating handle 9, the surfaces of both sides of the operating handle 9 are fixedly connected to L-shaped blocks 10, the surface of the L-shaped block 10 is fixedly connected to the sleeve 11, the inner cavity of the sleeve 11 is slidably connected to the connecting block 12, the right end of the connecting block 12 is fixedly connected to the pull ring 13, and the inner cavity of the operating handle 9 is slidably connected to the telescopic rod 14.

[0025] The following is a detailed description of the specific settings and functions of the limit mechanism and the adjustment mechanism.

[0026] Reference Figure 1 - Figure 5As shown, in this embodiment: when the staff needs to adjust the height of the operating handle 9, the staff pulls the pull ring 13 outward, so that the pull ring 13 drives the surface of the connecting block 12 to slide outward in the inner cavity of the sleeve 11. While the connecting block 12 moves, it drives the surface of the plug rod 16 to gradually separate from the inner diameter of the hole 15. At this time, the staff can pull the operating handle 9 upward to adjust the height. Through the arrangement of the above structure, the staff can adjust the height of the operating handle 9 according to the height of different people, and the operation is convenient, coordinated and comfortable. The surface of the telescopic rod 14 is provided with a hole 15, and the number of the holes 15 is three and evenly distributed. The surface of the telescopic rod 14 and the inner diameter of the socket 15 are slidably connected with the plug rod 16, and the end of the plug rod 16 that is away from each other is fixedly connected to the slider 19. The staff pulls the pull ring 13 outward, so that the connection block 12 drives the surface of the plug rod 16 to gradually leave the inner cavity of the socket 15. Through the arrangement of the socket 15, the plug rod 16 and other structures, it is convenient for the staff to limit and fix the operating handle 9 when adjusting the height of the operating handle 9. The operation is simple and convenient. The surface of the L-shaped block 10 is fixedly connected with a tension spring 17, and the end of the tension spring 17 that is away from each other is fixedly connected to the surface of the connecting block 12, and the inner diameter of the tension spring 17 is the same as that of the plug rod 1 The surface of 6 is slidably connected, the staff pulls the pull ring 13 outward, so that the connecting block 12 drives the tension spring 17 to stretch and store force. When the staff needs to make the surface of the plug rod 16 continue to be inserted into the inner cavity of the socket 15, the staff releases the pulling force on the pull ring 13, so that the tension spring 17 releases the stored force and drives the surface of the connecting block 12 to slide inward, and at the same time, the connecting block 12 drives the surface of the plug rod 16 to continue to be inserted into the inner cavity of the socket 15. Through the setting of the tension spring 17, the surface of the plug rod 16 is continuously inserted into the inner cavity of the socket 15 under the action of the rebound force of the tension spring 17, preventing the plug rod 16 from being affected by external force and detaching from the socket 15 The inner cavity and the interior of both sides of the sleeve 11 are provided with sliding grooves 18, and the inner cavities of the sliding grooves 18 are slidably connected with sliders 19. The ends of the sliders 19 close to each other are fixedly connected to the two sides of the connecting block 12. The staff pulls the pull ring 13 outward, driving the surface of the connecting block 12 to slide outward in the inner cavity of the sleeve 11. At the same time, when the connecting block 12 moves outward, the surface of the slider 19 is driven to slide outward in the inner diameter of the sliding groove 18. Through the setting of structures such as the sliding groove 18 and the slider 19, the connecting block 12 maintains horizontal movement during the movement process, preventing the connecting block 12 from shaking, causing the surface of the insertion rod 16 to be unable to be inserted into the inner cavity of the jack 15.

[0027] Reference Figure 1 , Figure 6 and Figure 7As shown, in this embodiment: the top of the left operating handle weldment 8 is fixedly connected with a fixing plate 20, and the surface of the fixing plate 20 is provided with fixing holes 21, and the number of fixing holes 21 is three and evenly distributed on the surface of the fixing plate 20, and the surface of the inner cavity of the fixing plate 20 is fixedly connected with a rotating shaft 22, and the surface of the rotating shaft 22 is rotatably connected with an adjusting plate 23, and the top of the adjusting plate 23 is fixedly connected to the bottom end of the telescopic rod 14, and the inside of the adjusting plate 23 is provided with a hollow groove 24, and the inner cavity of the hollow groove 24 is slidably connected with a sliding piece 25, and the sliding piece 25 is slidably connected to the inner cavity of the hollow groove 24. There are two pieces 25 and they are evenly distributed on both sides of the inner cavity of the hollow groove 24. The ends of the slides 25 that are away from each other are fixedly connected to the fixing rods 26. The surfaces of the fixing rods 26 are slidably connected to the inner diameter of the fixing holes 21. The surfaces of the fixing rods 26 are fixedly connected to the pull tabs 27. When the staff needs to adjust the angle of the operating handle 9, the staff pushes the pull tabs 27 inwards, so that the pull tabs 27 drive the surfaces of the fixing rods 26 to move inwards. When the pull tabs 27 move inwards, they drive the surfaces of the slides 25 in the inner cavity of the hollow groove 24. The staff 26 is pressed against the inner diameter of the fixing hole 21 to release the force, and the staff 26 releases the force to push the surface of the sliding plate 25 to move outward in the inner cavity of the hollow groove 24, and at the same time drives the surface of the fixing rod 26 to insert into the inner diameter of the fixing hole 21, thereby completing the limit of the adjusting disk 23.

[0028] The practical working principle of the present invention is that when the staff needs to adjust the height of the operating handle 9, the staff pulls the pull ring 13 outward, so that the pull ring 13 drives the surface of the connecting block 12 to slide outward in the inner cavity of the sleeve 11. While the connecting block 12 moves, it drives the surface of the insertion rod 16 to gradually separate from the inner diameter of the socket 15, and at the same time, the connecting block 12 drives the tension spring 17 to stretch and store force, thereby completing the position limitation of the operating handle 9. Through the setting of the above structure, the staff can adjust the height of the operating handle 9 according to the height of different people, and the operation is convenient, coordinated and comfortable. When the handle 9 is adjusted in angle, the staff pushes the pull tab 27 inward, so that the pull tab 27 drives the surface of the fixing rod 26 to move inward. When the pull tab 27 moves inward, it drives the surface of the slide plate 25 to slide in the inner cavity of the hollow groove 24, and at the same time squeezes the pressure spring 28 to store force. As the fixing rod 26 moves inward, the surface of the fixing rod 26 gradually separates from the inner diameter of the fixing hole 21. At this time, the staff can adjust the angle of the operating handle 9 according to needs. When the staff has completed the adjustment, the staff releases the pushing force on the pull tab 27, so that the pressure spring 28 releases the stored force to push the surface of the slide plate 25 to move outward in the inner cavity of the hollow groove 24, and at the same time drives the surface of the fixing rod 26 to insert into the inner diameter of the fixing hole 21, completing the limiting of the adjustment disk 23. Through the setting of the above-mentioned structure, the staff can adjust the angle of the operating handle 9 according to their own needs, which is convenient for different staff to better hold the device, so that the applicability of the device is improved.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A height-adjustable armrest structure, comprising a body (1), characterized in that: The rear end of the machine body (1) is fixedly connected to a fixing plate (2), the number of the fixing plates (2) is two and they are evenly distributed on the rear end of the machine body (1), both sides of the fixing plate (2) are connected to handrails (3), the surface of the handrails (3) is provided with circular holes (4), the number of the circular holes (4) is three and they are evenly distributed on the surface of the handrails (3), the inner diameter of the circular hole (4) is connected to a threaded rod (5) through a thread, the surface of the threaded rod (5) is threadedly connected to the inside of both sides of the fixing plate (2), the rear end of the machine body (1) is fixedly connected to a fixing plate (6), the fixing A connecting rod (7) is fixedly connected to one end of the fixed plate (6) away from each other, a left operating handle welded part (8) is fixedly connected to the surface of the connecting rod (7), an operating handle (9) is installed on the top of the left operating handle welded part (8), L-shaped blocks (10) are fixedly connected to the surfaces of both sides of the operating handle (9), a sleeve (11) is fixedly connected to the surface of the L-shaped block (10), a connecting block (12) is slidably connected to the inner cavity of the sleeve (11), a pull ring (13) is fixedly connected to the right end of the connecting block (12), and a telescopic rod (14) is slidably connected to the inner cavity of the operating handle (9).

2. The height-adjustable armrest structure according to claim 1, characterized in that: The surface of the telescopic rod (14) is provided with insertion holes (15), the number of the insertion holes (15) is three and they are evenly distributed on the surface of the telescopic rod (14), the inner diameter of the insertion hole (15) is slidably connected with an insertion rod (16), and the ends of the insertion rods (16) that are away from each other are fixedly connected to a slider (19).

3. The height-adjustable armrest structure according to claim 1, characterized in that: A tension spring (17) is fixedly connected to the surface of the L-shaped block (10), one end of the tension spring (17) that is away from each other is fixedly connected to the surface of the connecting block (12), and the inner diameter of the tension spring (17) is slidably connected to the surface of the insertion rod (16).

4. The height-adjustable armrest structure according to claim 1, characterized in that: Slide grooves (18) are provided inside both sides of the sleeve (11), and the inner cavities of the slide grooves (18) are slidably connected to sliders (19), and the ends of the sliders (19) that are close to each other are fixedly connected to the two sides of the connection block (12).

5. The height-adjustable armrest structure according to claim 1, characterized in that: The top end of the left operating handle welded part (8) is fixedly connected to a fixing plate (20), a surface of the fixing plate (20) is provided with fixing holes (21), the number of the fixing holes (21) is several and evenly distributed on the surface of the fixing plate (20), the surface of the inner cavity of the fixing plate (20) is fixedly connected to a rotating shaft (22), the surface of the rotating shaft (22) is rotatably connected to an adjusting plate (23), the top end of the adjusting plate (23) is fixedly connected to the bottom end of the telescopic rod (14), a hollow groove (24) is provided inside the adjusting plate (23), the inner cavity of the hollow groove (24) is slidably connected to a sliding plate (25), the number of the sliding plates (25) is two and evenly distributed on both sides of the inner cavity of the hollow groove (24), one end of the sliding plate (25) away from each other is fixedly connected to a fixing rod (26), the surface of the fixing rod (26) is slidably connected to the inner diameter of the fixing hole (21), and the surface of the fixing rod (26) is fixedly connected to a pull tab (27).

6. The height-adjustable armrest structure according to claim 5, characterized in that: One end of the sliding plates (25) close to each other is fixedly connected with a pressure spring (28), and the surface of the pressure spring (28) is used for sliding connection with the inner cavity of the hollow groove (24).

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