Excavator cab seat back with storage function

Abstract

This utility model discloses a backrest for an excavator cab with storage function, relating to the field of seat backrest technology. Addressing the problem of existing excavator cab seat backrests having limited functionality and lacking storage space, this invention proposes the following solution: a back panel with a headrest inserted into its top, and support mechanisms rotatably connected to both outer walls of the back panel. Each support mechanism includes armrests, a soft pad adhered to the top of the armrest and one outer wall, and a storage box inserted into the other outer wall of the armrest. This utility model, by providing adjustable armrests and a backrest with a headrest, offers drivers more personalized and comfortable back and arm support. Drivers of different heights, body types, and driving habits can adjust the armrest angle according to their needs to find the most suitable support position, effectively reducing arm and back fatigue during long driving periods.

Description

Technical Field

[0001] This utility model relates to the field of seat back technology, and in particular to a backrest for an excavator cab seat with storage function. Background Technology

[0002] As a crucial piece of machinery in engineering construction, the design of the excavator's cab seat directly impacts the operator's experience and work efficiency. The seat back, a key component, must not only provide reliable back support to reduce fatigue from prolonged work but also possess diverse functions to meet various needs in actual operations.

[0003] In actual use, the existing excavator cab seat backrests have many shortcomings.

[0004] On the one hand, their functions are relatively simple, mostly only able to achieve simple angle adjustment, which cannot meet the driver's needs for personalized support and multi-functional use.

[0005] On the other hand, there is a lack of effective storage space design. The working environment of excavators is complex, and drivers usually need to carry some tools or personal items. However, traditional seat backs do not provide dedicated storage locations, so these items can only be placed randomly in the cab. This not only affects the cleanliness of the cab, but may also create safety hazards due to the shaking of items during vehicle movement. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides an excavator cab seat back with storage function, which overcomes the shortcomings of the prior art and effectively solves the problems of the single function and lack of storage space of the excavator cab seat back.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A backrest for an excavator cab seat with storage function includes a back panel, a headrest inserted into the top of the back panel, and support mechanisms rotatably connected to the outer walls of both sides of the back panel. Each support mechanism includes an armrest, a soft pad glued to the top of the armrest and one outer wall, and a storage box inserted into the other outer wall of the armrest. An adjustment mechanism is provided below each of the two support mechanisms, and the adjustment mechanism includes a support plate, a threaded rod welded to the bottom of the support plate, a second internal threaded tube screwed to the bottom end of the threaded rod, a worm gear sleeved and fixed to the outer wall of the second internal threaded tube, a worm gear meshing on one side of the worm gear, and guide rods inserted into both ends of the top of the support plate. A tray is provided at one end of each of the two armrests, and a fixing rod that is inserted into one end of the armrest is welded to both ends of the outer wall of one side of the tray.

[0008] Preferably, the outer walls of both sides of the back plate are welded and fixed with a first internal threaded tube, and the armrest is movable on the outer wall of the first internal threaded tube, with a fastening screw screwed to one end of the first internal threaded tube.

[0009] Preferably, the other side of the armrest has a storage groove adapted to the storage box on its outer wall, and both ends of the storage groove have grooves on their inner walls. A slide rail is installed and fixed in the groove, and both ends of the storage box have a slider adapted to the slide rail welded and fixed to its outer wall.

[0010] Preferably, a fixing block is welded and fixed to one end of the outer wall on the other side of the handrail, and a connecting component is installed and fixed to one end of the outer wall on the side of the storage box away from the handrail.

[0011] Preferably, the connecting assembly includes a fixed shell, a plug rod that is inserted into one end of the fixed shell, and a lever that is welded and fixed to one side of the outer wall of the plug rod. A sliding groove is provided on one side of the outer wall of the fixed shell to form a sliding fit with the lever. A telescopic spring is connected between the tail end of the plug rod and the inner wall of one end of the fixed shell.

[0012] Preferably, the bottom ends of the outer walls on both sides of the back plate are provided with mounting grooves, and the second internal threaded tube is rotatably connected to the bottom inner wall of the mounting groove. The bottom of the guide rod is welded and fixed to the bottom inner wall of the mounting groove. The two ends of the worm are rotatably connected to the two end inner walls of the mounting groove. A knob is fixed to one end of the worm.

[0013] The beneficial effects of this utility model are as follows: By incorporating adjustable armrests and a backrest with a headrest, drivers can enjoy more personalized and comfortable back and arm support. Drivers of different heights, body types, and driving habits can adjust the angle of the armrests to find the most suitable support position, effectively reducing arm and back fatigue during long drives. Simultaneously, the headrest provides support for the driver's head, reducing neck pressure and further enhancing driving comfort. Storage boxes are integrated into the armrests, providing drivers with dedicated storage space. Drivers can store frequently used tools, small parts, documents, or personal items in these boxes, preventing items from being scattered haphazardly in the cab and keeping it neat and organized. Furthermore, the storage boxes connect to the armrests via sliding rails, allowing drivers to quickly access items and improving work efficiency. In addition, the tray provides additional storage space, such as for mobile phones or lunchboxes for the driver to eat, further enhancing the practicality of the seat back. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a backrest for an excavator cab seat with storage function proposed in this utility model. Figure 2 This is a schematic diagram of the support mechanism for the backrest of an excavator cab seat with storage function proposed in this utility model. Figure 3 This utility model provides a schematic diagram of the connecting component structure for the backrest of an excavator cab seat with storage function. Figure 4 This is a schematic diagram of the adjustment mechanism for the backrest of an excavator cab seat with storage function, as proposed in this utility model. Figure 5 This is a schematic diagram of a tray structure for the backrest of an excavator cab seat with storage function, as proposed in this utility model.

[0015] In the diagram: 1. Back panel; 2. Headrest; 3. Support mechanism; 4. Armrest; 5. First internal threaded tube; 6. Fastening screw; 7. Soft pad; 8. Slide rail; 9. Storage box; 10. Slider; 11. Fixing block; 12. Connecting assembly; 13. Fixing shell; 14. Insert rod; 15. Toggle lever; 16. Adjustment mechanism; 17. Support plate; 18. Threaded rod; 19. Second internal threaded tube; 20. Worm gear; 21. Worm; 22. Guide rod; 23. Tray; 24. Fixing rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0017] Reference Figure 1-5 A backrest for an excavator cab with storage function includes a back panel 1, a headrest 2 inserted into the top of the back panel 1, and support mechanisms 3 rotatably connected to the outer walls of both sides of the back panel 1. The support mechanism 3 includes an armrest 4, a soft pad 7 glued and fixed to the top of the armrest 4 and one side of the outer wall, and a storage box 9 inserted and movable on the other side of the outer wall of the armrest 4. An adjustment mechanism 16 is provided below each of the two support mechanisms 3. The adjustment mechanism 16 includes a support plate 17, a threaded rod 18 welded and fixed to the bottom of the support plate 17, a second internal threaded tube 19 screwed to the bottom end of the threaded rod 18, a worm gear 20 sleeved and fixed to the outer wall of the second internal threaded tube 19, a worm 21 meshing on one side of the worm gear 20, and guide rods 22 inserted and movable at both ends of the top of the support plate 17. A tray 23 is provided at one end of each of the two armrests 4. A fixing rod 24 that is inserted into one end of the outer wall of one side of the tray 23 is welded and fixed to both ends of the tray 23. Both outer walls of the back panel 1 are welded with first internally threaded tubes 5. Armrests 4 are fitted onto the outer walls of the first internally threaded tubes 5, and one end of the first internally threaded tube 5 is screwed with a fastening screw 6. Through the cooperation of the first internally threaded tube 5 and the fastening screw 6, the angle of the armrest 4 can be easily adjusted to suit different drivers' usage habits. When the driver needs to adjust the position of the armrest 4, simply loosen the fastening screw 6, rotate the armrest 4 to the appropriate angle, and then tighten the fastening screw 6 to fix the armrest 4 in the new position. The other outer wall of the armrest 4 has a storage slot that matches the storage box 9. The inner walls at both ends of the storage slot have grooves, and slide rails 8 are installed and fixed within these grooves. The outer walls at both ends of the storage box 9 are welded with sliders 10 that match the slide rails 8. This design allows the storage box 9 to smoothly slide into or out of the storage slot along the slide rails 8, facilitating the driver's storage and retrieval of items. When it is necessary to store items, the driver can push the storage box 9 into the storage slot along the slide rail 8; when it is necessary to retrieve items, the driver can pull the storage box 9 out along the slide rail 8. A fixing block 11 is welded and fixed to one end of the outer wall of the other side of the armrest 4, and a connecting component 12 is installed and fixed to one end of the outer wall of the storage box 9 away from the armrest 4. The connecting component 12 is used to fix the storage box 9 when it is pulled out to prevent the storage box 9 from accidentally sliding back into the storage slot. The connecting component 12 includes a fixing shell 13, a plug rod 14 that is inserted into one end of the fixing shell 13, and a lever 15 that is welded and fixed to one side of the outer wall of the plug rod 14. A sliding groove is opened on one side of the outer wall of the fixing shell 13 to form a sliding fit with the lever 15. A telescopic spring is connected between the tail end of the plug rod 14 and the inner wall of one end of the fixing shell 13. When the storage box 9 is pulled out, the plug rod 14 is inserted into the corresponding insertion hole on the fixing block 11 under the action of the telescopic spring, thereby fixing the storage box 9. When it is necessary to push the storage box 9 back into the storage slot, the driver can move the lever 15 to make the plug rod 14 retract into the fixing shell 13 against the elastic force of the telescopic spring, at which time the storage box 9 can be pushed back. The bottom ends of the outer walls on both sides of the back plate 1 are provided with mounting grooves. The second internally threaded tube 19 is rotatably connected to the bottom inner wall of the mounting groove. The bottom of the guide rod 22 is welded and fixed to the bottom inner wall of the mounting groove. The two ends of the worm 21 are rotatably connected to the inner walls of the two ends of the mounting groove. A knob is fixed to one end of the worm 21. By rotating the knob, the worm 21 can be driven to rotate. The worm 21 drives the worm wheel 20 to rotate. The worm wheel 20 then drives the second internally threaded tube 19 to rotate. Since the threaded rod 18 is screwed to the second internally threaded tube 19, the guide rod 22 guides the support plate 17. Therefore, the support plate 17 will move up and down with the rotation of the second internally threaded tube 19, thereby supporting the angle of the handrail 4.

[0018] Working principle: When the operator sits in the excavator's cab, they first adjust the various parts of the seat back according to their needs. For the angle of the armrest 4, loosen the fastening screw 6, rotate the armrest 4 around the first internal threaded tube 5 to the appropriate angle, and then tighten the fastening screw 6 to secure it. Simultaneously, rotating the knob at one end of the worm gear 21 causes the worm gear 21 to rotate, meshing with the worm wheel 20, causing the worm wheel 20 to rotate, which in turn drives the second internal threaded tube 19, which is sleeved on the outer wall of the worm wheel 20, to rotate. Since the threaded rod 18 is screwed to the second internal threaded tube 19, and the guide rod 22 guides the support plate 17, the support plate 17 moves up and down with the rotation of the second internal threaded tube 19, causing the support plate 17 to abut against the bottom of the armrest 4, thus supporting the bottom of the armrest 4 and further ensuring the stability of the armrest 4's angle position. In daily use, if the operator needs to store items, the storage box 9 can be pulled out from the storage slot of the armrest 4 along the slide rail 8. At this time, the insertion rod 14 in the connecting assembly 12, under the action of the telescopic spring, inserts into the corresponding insertion hole on the fixing block 11, fixing the storage box 9 in place, making it convenient for the driver to put tools, documents, and other items into the storage box 9. When it is necessary to retrieve an item, the lever 15 is moved to retract the insertion rod 14 into the fixing shell 13, and the storage box 9 can be pulled out to retrieve the item. After use, the storage box 9 is pushed back into the storage slot, and the insertion rod 14 is once again inserted into the insertion hole of the fixing block 11 under the action of the telescopic spring, fixing the storage box 9 in place. The tray 23 can be used to place frequently used items for the driver. For example, when the driver needs to eat, he can place his lunchbox and water cup on the tray 23 for easy access. In summary, this utility model, through the coordinated work of its various components, provides the driver with a multifunctional, comfortable excavator cab seat backrest that also has storage capabilities, effectively improving the driver's work experience and efficiency.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A backrest for an excavator cab seat with storage function, comprising a back panel (1), characterized in that, A headrest (2) is inserted into the top of the back panel (1), and a support mechanism (3) is rotatably connected to both outer walls of the back panel (1). The support mechanism (3) includes an armrest (4), a soft pad (7) glued and fixed to the top of the armrest (4) and one outer wall, and a storage box (9) inserted and movable on the other outer wall of the armrest (4). An adjustment mechanism (16) is provided below both support mechanisms (3), and the adjustment mechanism (16) includes a support plate (17) and a bottom welded to the support plate (17). The threaded rod (18), the second internal threaded tube (19) screwed to the bottom end of the threaded rod (18), the worm gear (20) sleeved and fixed on the outer wall of the second internal threaded tube (19), the worm (21) meshing on one side of the worm gear (20), and the guide rod (22) inserted and movable at both ends of the top of the support plate (17). One end of each of the two handrails (4) is provided with a tray (23), and both ends of the outer wall of one side of the tray (23) are welded and fixed with a fixing rod (24) that is inserted into one end of the handrail (4).

2. The excavator cab seat backrest with storage function according to claim 1, characterized in that, The back plate (1) has a first internal threaded tube (5) welded and fixed on both outer walls, and the armrest (4) is sleeved on the outer wall of the first internal threaded tube (5). One end of the first internal threaded tube (5) is screwed with a fastening screw (6).

3. The excavator cab seat backrest with storage function according to claim 1, characterized in that, The other side of the armrest (4) has a storage groove that is compatible with the storage box (9) on its outer wall. The inner walls of both ends of the storage groove are provided with grooves. A slide rail (8) is installed and fixed in the groove. A slider (10) that is compatible with the slide rail (8) is welded and fixed to both ends of the outer wall of the storage box (9).

4. The excavator cab seat backrest with storage function according to claim 1, characterized in that, A fixing block (11) is welded to one end of the outer wall of the other side of the handrail (4), and a connecting component (12) is installed and fixed to one end of the outer wall of the storage box (9) away from the handrail (4).

5. The excavator cab seat backrest with storage function according to claim 4, characterized in that, The connecting assembly (12) includes a fixed shell (13), a plug rod (14) that is inserted into one end of the fixed shell (13), and a lever (15) that is welded and fixed to one side of the outer wall of the plug rod (14). A sliding groove is provided on one side of the outer wall of the fixed shell (13) to form a sliding fit with the lever (15). A telescopic spring is connected between the tail end of the plug rod (14) and the inner wall of one end of the fixed shell (13).

6. The excavator cab seat backrest with storage function according to claim 1, characterized in that, The bottom of the outer walls on both sides of the back plate (1) is provided with an installation groove, and the second internal threaded tube (19) is rotatably connected to the bottom inner wall of the installation groove. The bottom of the guide rod (22) is welded and fixed to the bottom inner wall of the installation groove. The two ends of the worm (21) are rotatably connected to the inner walls of the two ends of the installation groove. A knob is fixed at one end of the worm (21).

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