A wrench to improve the efficiency of filter installation and removal in engineering vehicles
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2026-08-11
AI Technical Summary
目前的更换方式是通常利用皮带扳手缠绕在锁紧滤芯的螺母上,之后转动皮带扳手将螺母拆除,更换滤芯,再利用皮带扳手重新将螺母锁紧,由于皮带与螺母之间存在相对滑动,容易在拆装过程中损坏螺母,而且扳手无法完全受力于螺母致使拆装困难,同时皮带扳手在拧紧螺母的过程中时无法精确控制力度,容易预紧不够或过分拧紧螺母,影响后续滤芯的工作效果
[0010]该一种提升工程车滤芯拆装效率的扳手包括扭力扳手、安装板、用于夹紧滤芯的夹紧组件和用于驱动夹紧组件的驱动组件,所述安装板固定在扭力扳手上,所述夹紧组件转动设置在所述安装板的下方,所述驱动组件设置在所述夹紧组件的一侧,其中,本实用新型的一种提升工程车滤芯拆装效率的扳手通过各个结构的相互配合避免了锁紧螺母的损坏,同时提高了锁紧螺母拆装的效率,从而能够提高滤芯的更换效率,此外,还可以在拧紧螺母的过程中精确控制力度,避免因为螺母预紧不够或过分拧紧影响滤芯后续的工作效果。
Smart Images

Figure CN224616240U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of filter element disassembly and assembly, and in particular to a wrench that improves the efficiency of filter element disassembly and assembly in engineering vehicles. Background Technology
[0002] Engineering vehicles are important equipment for ensuring the safe and efficient operation of subways. They are mainly used for traction of electric passenger cars in the depot, rescue traction of accident trains in stations and tunnels, transportation of equipment and materials, and traction of other unpowered rail vehicles. The filter element of the engineering vehicle is an important component in engineering machinery equipment used to filter media such as air, fuel, engine oil, and hydraulic oil, and needs to be replaced regularly. The current replacement method usually involves wrapping a belt wrench around the nut that locks the filter element, then turning the belt wrench to remove the nut, replacing the filter element, and then using the belt wrench to tighten the nut again. Because there is relative slippage between the belt and the nut, the nut is easily damaged during disassembly and assembly. Moreover, the wrench cannot fully bear the force on the nut, making disassembly and assembly difficult. At the same time, the belt wrench cannot accurately control the force when tightening the nut, and it is easy to under-tighten or over-tighten the nut, affecting the working effect of the subsequent filter element. Utility Model Content
[0003] This utility model provides a wrench that improves the efficiency of filter element removal and installation in engineering vehicles, thereby solving the technical problems mentioned in the background art.
[0004] This utility model provides a wrench for improving the efficiency of filter element removal and installation in engineering vehicles. The wrench includes a torque wrench, a mounting plate, a clamping assembly for clamping the filter element, and a driving assembly for driving the clamping assembly. The mounting plate is fixed to the torque wrench, the clamping assembly is rotatably disposed below the mounting plate, and the driving assembly is disposed on one side of the clamping assembly.
[0005] Optionally, the mounting plate is provided with a slot.
[0006] Optionally, the drive assembly includes: a drive housing, a first gear disc, a second gear disc, a connecting shaft, a pressing rotating block, a spring, a drive gear, and a driving gear. The drive housing is fixedly disposed in the slot. The first gear disc is fixedly disposed on the top of the drive housing. The second gear disc is disposed below the first gear disc. The first gear disc and the second gear disc are meshed together. The connecting shaft passes through the drive housing. One end of the connecting shaft is connected to the pressing rotating block, and the other end of the connecting shaft is connected to the drive gear. The second gear disc is disposed on the connecting shaft. One end of the spring is connected to the bottom of the drive housing, and the other end of the spring is connected to the second gear disc. The driving gear is rotatably disposed below the mounting plate.
[0007] Optionally, a through hole is provided at the center of the drive gear, and a gear ring is provided at the middle of the through hole, and the drive gear meshes with the gear ring.
[0008] Optionally, the clamping assembly includes: a driven gear, a rotating gear, and a clamping rod. The driven gear and the plurality of rotating gears are rotatably disposed below the mounting plate. The driven gear is meshed with the driving gear, and the plurality of rotating gears are meshed with the driven gear. The clamping rod is fixedly disposed on the side of the rotating gear.
[0009] Optionally, the clamping rod is provided with a protrusion. Beneficial effects
[0010] This wrench for improving the efficiency of filter element removal and installation in engineering vehicles includes a torque wrench, a mounting plate, a clamping assembly for clamping the filter element, and a driving assembly for driving the clamping assembly. The mounting plate is fixed to the torque wrench, the clamping assembly is rotatably disposed below the mounting plate, and the driving assembly is disposed on one side of the clamping assembly. This wrench, through the cooperation of its various structures, avoids damage to the locking nut and improves the efficiency of locking nut removal and installation, thereby increasing the filter element replacement efficiency. Furthermore, it allows for precise control of the force during nut tightening, preventing insufficient or excessive tightening from affecting the subsequent working effect of the filter element. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a first-view structural schematic diagram of a wrench that improves the efficiency of filter element removal and installation in engineering vehicles, provided by this utility model. Figure 2 This is a second-view structural schematic diagram of a wrench that improves the efficiency of filter element removal and installation in engineering vehicles, provided by this utility model. Figure 3 This is an exploded view of the drive assembly in a wrench for improving the efficiency of filter element removal and installation in engineering vehicles, provided by this utility model. Figure 4 This is a schematic diagram of the internal structure of the drive box in a wrench that improves the efficiency of filter element removal and installation in engineering vehicles, provided by this utility model. Figure 5This is a schematic diagram of a partial structure of a wrench provided by this utility model for improving the efficiency of filter element removal and installation in engineering vehicles; Figure 6 This is a schematic diagram of the drive gear in a wrench that improves the efficiency of filter element removal and installation in engineering vehicles, provided by this utility model.
[0013] Figure label: 10. Filter element; 20. Belt wrench; 100. Torque wrench; 110. Mounting plate; 111. Slot; 200. Drive assembly; 210. Drive box; 220. First gear disc; 230. Second gear disc; 240. Connecting shaft; 250. Pressing rotating block; 260. Spring; 270. Drive gear; 280. Driving gear; 281. Gear ring; 300, clamping assembly; 310, driven gear; 320, rotating gear; 330, clamping rod; 331, protrusion. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to the present utility model are shown in the drawings, not all of the structures. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0015] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0016] Please see Figures 1 to 6 The present invention provides a wrench for improving the efficiency of filter element disassembly and assembly in engineering vehicles, comprising a torque wrench 100, a mounting plate 110, a clamping assembly 300 for clamping the filter element, and a driving assembly 200 for driving the clamping assembly 300. The mounting plate 110 is fixed on the torque wrench 100, the clamping assembly 300 is rotatably disposed below the mounting plate 110, and the driving assembly 200 is disposed on one side of the clamping assembly 300. The torque wrench 100 mentioned above is existing technology and will not be described in detail here; Furthermore, when a user needs to use the wrench of this utility model to improve the efficiency of filter element removal and installation in engineering vehicles, firstly, the user clamps the filter element housing with the clamping assembly 300, then removes the fastening bolts on the filter element with the nut sleeve on the torque wrench 100, then replaces the filter element, and after the filter element is replaced, the filter element housing is clamped again with the clamping assembly 300, and finally the fastening bolts are tightened on the filter element with the nut sleeve on the torque wrench 100.
[0017] In this embodiment, the mounting plate 110 is provided with a slot 111. The drive assembly 200 includes: a drive housing 210, a first gear disc 220, a second gear disc 230, a connecting shaft 240, a pressing rotating block 250, a spring 260, a drive gear 270, and a driving gear 280. The drive housing 210 is fixedly disposed in the slot 111. The first gear disc 220 is fixedly disposed on the top of the drive housing 210. The second gear disc 230 is disposed below the first gear disc 220. The first gear disc 220 and the second gear disc 230 are meshed together. The connecting shaft 240 passes through the first gear disc 220. The drive housing 210 has a connecting shaft 240, one end of which is connected to the pressing rotating block 250, and the other end of which is connected to the drive gear 270. The second gear disk 230 is mounted on the connecting shaft 240. One end of the spring 260 is connected to the bottom of the drive housing 210, and the other end of the spring 260 is connected to the second gear disk 230. The drive gear 280 is rotatably mounted below the mounting plate 110. A through hole is provided at the center of the drive gear 280, and a gear ring 281 is provided at the middle of the through hole. The drive gear 270 meshes with the gear ring 281. When the user presses down on the rotating block 250, the rotating block 250 causes the connecting shaft 240 and the second gear disk 230 to move downwards. The second gear disk 230 and the first gear disk 220 disengage. The connecting shaft 240 then causes the drive gear 270 to move downwards until it reaches the engagement point with the gear ring 281. Afterwards, rotating the rotating block 250 causes the connecting shaft 240 to rotate, which in turn causes the drive gear 270 to rotate. When the drive gear 280 rotates, the second gear disk 230 will compress the spring 260 when it moves downward. When the user releases the pressure of the rotating block 250, the spring 260 will spring up, the second gear disk 230 will move upward, and the second gear disk 230 will re-engage with the first gear disk 220. At the same time, the connecting shaft 240 will drive the drive gear 270 to move upward, canceling the engagement with the gear ring 281, and the drive gear 280 will stop rotating. This way, the rotation of the drive gear 280 can be controlled.
[0018] In this embodiment, the clamping assembly 300 includes: a driven gear 310, a rotating gear 320, and a clamping rod 330. The driven gear 310 and the plurality of rotating gears 320 are rotatably disposed below the mounting plate 110. The driven gear 310 is meshed with the driving gear 280, and the plurality of rotating gears 320 are meshed with the driven gear 310. The clamping rod 330 is fixedly disposed on the side of the rotating gear 320, and a protrusion 331 is provided on the clamping rod 330. When the drive gear 280 rotates, it drives the driven gear 310 to rotate, which in turn drives the clamping rod 330 to rotate. During the rotation of the clamping rod 330, the radius of its inscribed circle decreases until it reaches the radius of the filter element housing. At this point, the drive gear 280 stops rotating, and the torque wrench 100 begins to work, removing the clamping bolts that hold the filter element in place. After the filter element is replaced, the filter element housing is clamped by the clamping assembly 300. Finally, the fastening bolts are tightened onto the filter element using the nut sleeve on the torque wrench 100. The protrusion 331 further ensures the clamping effect of the clamping rod 330. In addition, the height of the pressing rotating block 250 is lower than the wrench height of the torque wrench 100 to avoid affecting the operation of the torque wrench 100. A through hole is provided at the center of the driven gear 310, through which the threaded sleeve on the torque wrench 100 passes.
[0019] This wrench for improving the efficiency of filter element removal and installation in engineering vehicles includes a torque wrench 100, a mounting plate 110, a clamping assembly 300 for clamping the filter element, and a driving assembly 200 for driving the clamping assembly 300. The mounting plate 110 is fixed on the torque wrench 100, the clamping assembly 300 is rotatably disposed below the mounting plate 110, and the driving assembly 200 is disposed on one side of the clamping assembly 300. This wrench, through the cooperation of its various structures, avoids damage to the locking nut and improves the efficiency of locking nut removal and installation, thereby increasing the filter element replacement efficiency. Furthermore, it allows for precise control of the force during nut tightening, preventing insufficient or excessive tightening from affecting the subsequent working effect of the filter element.
[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A wrench for improving the efficiency of filter element removal and installation in engineering vehicles, characterized in that, include: Torque wrench; Mounting plate, which is fixed to a torque wrench; A clamping assembly for clamping the filter element, the clamping assembly being rotatably disposed below the mounting plate; A drive assembly for driving the clamping assembly, the drive assembly being disposed on one side of the clamping assembly.
2. The wrench for improving the efficiency of filter element disassembly and assembly in engineering vehicles according to claim 1, characterized in that, The mounting plate is provided with a card slot.
3. The wrench for improving the efficiency of filter element disassembly and assembly in engineering vehicles according to claim 2, characterized in that, The drive assembly includes: a drive housing, a first gear disc, a second gear disc, a connecting shaft, a pressing rotating block, a spring, a drive gear, and a driving gear. The drive housing is fixedly disposed in the slot. The first gear disc is fixedly disposed on the top of the drive housing. The second gear disc is disposed below the first gear disc. The first gear disc and the second gear disc are meshed together. The connecting shaft passes through the drive housing. One end of the connecting shaft is connected to the pressing rotating block, and the other end of the connecting shaft is connected to the drive gear. The second gear disc is disposed on the connecting shaft. One end of the spring is connected to the bottom of the drive housing, and the other end of the spring is connected to the second gear disc. The driving gear is rotatably disposed below the mounting plate.
4. The wrench for improving the efficiency of filter element disassembly and assembly in engineering vehicles according to claim 3, characterized in that, A through hole is provided at the center of the drive gear, and a gear ring is provided at the middle of the through hole. The drive gear meshes with the gear ring.
5. A wrench for improving the efficiency of filter element removal and installation in engineering vehicles according to claim 3, characterized in that, The clamping assembly includes a driven gear, a rotating gear, and a clamping rod. The driven gear and the plurality of rotating gears are rotatably disposed below the mounting plate. The driven gear is meshed with the driving gear, and the plurality of rotating gears are meshed with the driven gear. The clamping rod is fixedly disposed on the side of the rotating gear.
6. A wrench for improving the efficiency of filter element removal and installation in engineering vehicles according to claim 5, characterized in that, The clamping rod is provided with a protrusion.