A handrail box for easy-to-clean construction machinery cab
By designing a handrail box structure with detachable baffles and a water seepage collection box, the problems of difficult cleaning and unstable cover of the cab handrail box are solved, achieving convenient cleaning and stable storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINING ZHONGZHI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-26
Smart Images

Figure CN224277001U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of armrest box technology, and more specifically, it relates to an armrest box body for the cab of engineering machinery that is easy to clean. Background Technology
[0002] Excavators are powerful construction machines used in a variety of working conditions. In most workplaces, excavators can walk into the work area on their own. Typically, an armrest box is provided in the excavator cab, usually located between the driver's seat and the passenger seat, which can be used to store items and rest the right arm.
[0003] However, most existing cab armrest boxes are one-piece structures. Since the bottom of the armrest box is fixed to the construction machinery and the interior is quite deep, it is difficult to clean out the dust or impurities that fall inside. Over time, this affects normal use.
[0004] Furthermore, most existing armrest storage boxes lack a locking mechanism for their covers, which makes it easy for the covers to open automatically during use, affecting the normal storage of items. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the problems existing in the prior art, this utility model provides an easy-to-clean handrail box for the cab of construction machinery, thereby solving the technical problem mentioned in the background art that most existing handrail boxes for cabs are one-piece structures, and because the bottom of the handrail box is fixed to the construction machinery and the internal depth is relatively large, it is difficult to clean out the dust or impurities that fall inside.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a handrail box for an engineering machinery cab that is easy to clean, comprising a box body, an inner shell movably disposed inside the box body, a placement ring fixedly disposed at the upper end of the inner shell, a placement groove correspondingly formed on the upper end face of the box body, the placement ring being located inside the placement groove, a semi-circular groove correspondingly formed on the upper end face of both the box body and the placement ring, a fixed shaft being disposed on the inner wall of the semi-circular groove and located at the upper end of the box body, a baffle being rotatably disposed at the outer end of the fixed shaft, a clamping nut being disposed on the outer wall of the fixed shaft, the clamping nut being threadedly connected to the outer wall of the fixed shaft, a cover being disposed inside the semi-circular groove, the cover being threadedly connected to the inner wall of the semi-circular groove, a snap-on cover being hinged to the upper end of the box body, and a connecting block being disposed at the front end of the snap-on cover.
[0009] The present invention is further configured such that grooves are provided on the outer wall of the connecting block on both sides, and tension springs are fixedly provided on the inner wall of each groove. An annular ring is fixedly provided on the other end of each tension spring. The annular rings are slidably installed with the grooves. A pin is provided on one side of each of the two annular rings. A slot is correspondingly provided on the outer wall of the box. One end of each pin passes through the groove and is located inside the slot, which facilitates the fixed installation of the cover.
[0010] The present invention is further provided with a pull ring fixed on the other side of the annular ring, so as to facilitate pulling the pin out of the slot.
[0011] The present invention is further configured such that the bottom of the inner shell is provided with a water seepage hole, and the water seepage hole is provided in a plurality of evenly distributed manner; a collection box is provided at the lower end of the inner shell; and an installation hole is provided on the outer wall of the box and located at the bottom; the collection box is located inside the installation hole, which facilitates the collection of water leaking from the item and makes it convenient for centralized treatment.
[0012] The present invention is further provided that the front end of the collection box is provided with a fixing block, and the fixing block and the box body are respectively provided with threaded holes, and the inside of the threaded holes is provided with connecting screws, so as to facilitate the fixed installation of the collection box.
[0013] The present invention is further provided with a screwing block fixed at one end of the connecting screw, which facilitates the assembly and disassembly of the connecting screw.
[0014] The present invention is further provided with a magnetic block at the bottom of the slot, the magnetic block attracting the pin to each other, which facilitates further fixing of the pin.
[0015] The present invention is further provided with a finger groove on the upper surface of the cover, which facilitates the disassembly and assembly of the cover.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a handrail box for the cab of engineering machinery that is easy to clean, and has the following beneficial effects:
[0018] 1. By setting up a box body, inner shell, semi-circular groove and baffle, the user can disassemble the baffle through the finger groove. Then, by tightening the clamping nut until it is loose, the baffle can be rotated to disengage from the semi-circular groove on the placement ring, so that the inner shell can be slid out from the inside of the box body, making it easier to clean the dust or residue inside, and facilitating subsequent use.
[0019] 2. By incorporating a groove, a tension spring, and a latch, the user can pull the ring to disengage one end of the latch from the slot, allowing the top cover of the case to be opened for easy access to the contents. Furthermore, the tension spring and magnetic block ensure a more secure latch installation, preventing the cover from opening during use and thus preserving the contents.
[0020] 3. By setting up seepage holes, collection boxes, and connecting screws, when storing ice or water-containing items, if leakage occurs, the water will flow down from the seepage holes and into the collection box. The connecting screws can then be removed to take the collection box out of the box for easy collection and cleaning later. Attached Figure Description
[0021] Figure 1 This is an overall schematic diagram of the unused state of a handrail box for the cab of an engineering machinery that is easy to clean;
[0022] Figure 2 This is a schematic diagram showing the installation of the enclosure, inner shell, placement ring, and cover.
[0023] Figure 3 Exploded view of the assembly of the housing, inner shell, baffles, and clamping nuts;
[0024] Figure 4 A cross-sectional view of a handrail box for an easy-to-clean construction machinery cab;
[0025] Figure 5 for Figure 4 A partial schematic diagram of region A in the middle;
[0026] Figure 6 Exploded view of the installation of the fixing blocks and connecting screws on the collection box.
[0027] In the diagram: 1. Box body; 2. Inner shell; 3. Placement ring; 4. Placement groove; 5. Semicircular groove; 6. Fixed shaft; 7. Baffle; 8. Compression nut; 9. Cover; 10. Buckle cover; 11. Connecting block; 12. Groove; 13. Tension spring; 14. Ring; 15. Pin; 16. Slot; 17. Pull ring; 18. Drain hole; 19. Collection box; 20. Mounting hole; 21. Fixing block; 22. Threaded hole; 23. Connecting screw; 24. Tightening block; 25. Magnetic block. Detailed Implementation
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0031] Please see Figure 1-6 A handrail box for easy-to-clean engineering machinery cab includes a box body 1. An inner shell 2 is movably provided inside the box body 1. A placement ring 3 is fixedly provided at the upper end of the inner shell 2. A placement groove 4 is correspondingly provided on the upper end face of the box body 1. The placement ring 3 is located inside the placement groove 4. Semicircular grooves 5 are correspondingly provided on the upper end face of both the box body 1 and the placement ring 3. A fixed shaft 6 is provided on the inner wall of the semicircular groove 5 at the upper end of the box body 1. A baffle 7 is rotatably provided at the outer end of the fixed shaft 6. A clamping nut 8 is provided on the outer wall of the fixed shaft 6. The clamping nut 8 is threadedly connected to the outer wall of the fixed shaft 6. A cover 9 is provided inside the semicircular groove 5. The cover 9 is threadedly connected to the inner wall of the semicircular groove 5. A snap cover 10 is hinged to the upper end of the box body 1. A connecting block 11 is provided at the front end of the snap cover 10. A finger groove is provided on the upper end face of the cover 9.
[0032] In this embodiment, grooves 12 are provided on the outer wall of the connecting block 11 on both sides. A tension spring 13 is fixedly provided on the inner wall of each groove 12. An annular ring 14 is fixedly provided on the other end of each tension spring 13. The annular ring 14 is slidably installed with the groove 12. A pin 15 is provided on one side of each of the two annular rings 14. A slot 16 is correspondingly provided on the outer wall of the housing 1. One end of each pin 15 passes through the groove 12 and is located inside the slot 16. A pull ring 17 is fixedly provided on the other side of the annular ring 14.
[0033] More specifically, the user can disassemble the cover 9 using the finger groove, and then loosen the clamping nut 8 to rotate the baffle 7 so that it disengages from the semi-circular groove 5 on the placement ring 3, allowing the inner shell 2 to slide out from the inside of the box 1, thus facilitating the cleaning of dust or residue inside. In use, the user can pull the pull ring 17 to disengage one end of the pin 15 from the slot 16, at which point the cover 10 at the top of the box 1 can be opened to facilitate the retrieval of items inside. Furthermore, by setting a tension spring and a magnetic block 25, the pin 15 can be installed more securely, preventing the cover 10 from opening during use and affecting the storage of items.
[0034] Please see Figure 1 , Figure 2 and Figure 6 As an implementation method for collecting water that has been accidentally leaked from an item: the bottom of the inner shell 2 is provided with a seepage hole 18, and there are multiple seepage holes 18 that are evenly distributed. The lower end of the inner shell 2 is provided with a collection box 19. The outer wall of the box 1 and the bottom are provided with an installation hole 20. The collection box 19 is located inside the installation hole 20. The front end of the collection box 19 is provided with a fixing block 21. The fixing block 21 and the box 1 are both provided with threaded holes 22. The threaded holes 22 are provided with connecting screws 23. One end of the connecting screws 23 is fixed with a screwing block 24.
[0035] Specifically, when storing ice-like or water-containing items, if leakage occurs, the water will flow down from the seepage hole 18 and enter the collection box 19. Subsequently, the connecting screw 23 can be removed to take the collection box 19 out of the box 1 for easy centralized cleaning later.
[0036] Please refer to Figure 5 As a further embodiment for further securing the pin 15: a magnetic block 25 is provided at the bottom of the slot 16, and the magnetic block 25 attracts the pin 15.
[0037] Specifically, the magnetic block 25 can further increase the firmness of the pin 15 during installation, making it easier to fix the cover 9 in place.
[0038] In summary, when using the overall equipment: the user can disassemble the cover 9 using the finger groove, and then loosen the clamping nut 8 to rotate the baffle 7 so that it disengages from the semi-circular groove 5 on the placement ring 3. At this time, the inner shell 2 can be slid out from the inside of the box 1, making it easier to clean the dust or residue inside. When in use, the pull ring 17 can be pulled to disengage one end of the pin 15 from the slot 16, at which time the cover 10 at the top of the box 1 can be opened to facilitate the retrieval of the items inside. Furthermore, by setting the tension spring and magnetic block 25, the pin 15 can be installed more securely, preventing the cover 10 from opening during use and affecting the storage of items. When storing ice-like or water-containing items and leakage occurs, the water will flow down from the seepage hole 18 and enter the collection box 19. Subsequently, the connecting screw 23 can be removed to take the collection box 19 out from the inside of the box 1 for convenient subsequent centralized cleaning.
[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A handrail housing for a cab of a construction machine, which facilitates cleaning, comprising a housing (1), characterized in that: The box (1) is provided with an inner shell (2) inside. The upper end of the inner shell (2) is fixedly provided with a placement ring (3). The upper end face of the box (1) is provided with a placement groove (4). The placement ring (3) is located inside the placement groove (4). The upper end face of the box (1) and the placement ring (3) are provided with a semi-circular groove (5). The inner wall of the semi-circular groove (5) and the upper end of the box (1) are provided with a fixed shaft (6). The outer end of the fixed shaft (6) is provided with a baffle (7). The outer wall of the fixed shaft (6) is provided with a clamping nut (8). The clamping nut (8) is threaded to the outer wall of the fixed shaft (6). The inside of the semi-circular groove (5) is provided with a cover (9). The cover (9) is threaded to the inner wall of the semi-circular groove (5). The upper end of the box (1) is hinged with a buckle (10). The front end of the buckle (10) is provided with a connecting block (11).
2. A handrail box for an engineering machine cab according to claim 1, characterized in that: The connecting block (11) has grooves (12) on its outer wall and on both sides. A tension spring (13) is fixed on the inner wall of each groove (12). An annular ring (14) is fixed on the other end of each tension spring (13). The annular ring (14) is slidably installed with the groove (12). A pin (15) is provided on one side of each of the two annular rings (14). A slot (16) is correspondingly provided on the outer wall of the box (1). One end of each pin (15) passes through the groove (12) and is located inside the slot (16).
3. The easily cleanable armrest box for the cab of engineering machinery according to claim 2, characterized in that: A pull ring (17) is fixedly provided on the other side of the annular ring (14).
4. The easy-to-clean handrail box for the cab of engineering machinery according to claim 1, characterized in that: The bottom of the inner shell (2) is provided with a water seepage hole (18), and there are multiple water seepage holes (18) evenly distributed. The lower end of the inner shell (2) is provided with a collection box (19). The outer wall of the box (1) and the bottom are provided with an installation hole (20), and the collection box (19) is located inside the installation hole (20).
5. The easy-to-clean handrail box for the cab of engineering machinery according to claim 4, characterized in that: The front end of the collection box (19) is provided with a fixing block (21), and the fixing block (21) and the box body (1) are respectively provided with threaded holes (22), and the threaded holes (22) are provided with connecting screws (23).
6. The easy-to-clean handrail box for the cab of engineering machinery according to claim 5, characterized in that: One end of the connecting screw (23) is fixedly provided with a screwing block (24).
7. The easy-to-clean handrail box for the cab of engineering machinery according to claim 2, characterized in that: The bottom of the slot (16) is provided with a magnetic block (25), which attracts the pin (15).
8. The easy-to-clean handrail box for the cab of engineering machinery according to claim 1, characterized in that: The upper surface of the cover (9) is provided with a finger groove.