Inspection and maintenance tool box

By designing a maintenance toolbox with a rotating wheel and locking assembly, the problem of laborious movement and fixation of existing devices has been solved, enabling convenient movement and stable fixation of the toolbox and improving equipment maintenance efficiency.

CN224129761UActive Publication Date: 2026-04-17JILIN JIDONG DEV SHIELD STONE ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN JIDONG DEV SHIELD STONE ENG CO LTD
Filing Date
2025-05-02
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing equipment maintenance auxiliary devices increase weight when storing multiple tools, and are time-consuming and laborious to move and fix on the ground, making them inconvenient to move and fix.

Method used

A maintenance toolbox was designed, which includes a fixed structure, a movable structure, and a mobile structure. The toolbox can be moved easily and fixed stably by means of a wheel and a locking assembly. The wheel can be pushed to move perpendicular to the ground and rotated to store and fix it. The locking assembly keeps it stable in the event of accidental vibration.

Benefits of technology

This technology enables the toolbox to be moved and fixed stably in a time-saving and labor-saving manner, improving the efficiency of inspection and maintenance work and reducing manpower consumption.

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Abstract

The utility model relates to an inspection and maintenance tool box, which comprises a fixed structure, a movable structure and a moving structure, the moving structure is welded on the lower surface of the fixed structure, the movable structure is rotatably connected on the inner walls of the two sides of the fixed structure, the fixed structure comprises a bottom box, and a bottom plate is welded on the lower surface of the bottom box. Four grooves are formed in the bottom face of the bottom plate of the moving structure, a plurality of springs are welded to the inner walls of one sides of the four grooves, spring baffles are welded to one ends of the springs, rotating rods are rotationally connected to the inner walls of the two sides, away from the spring baffles, of the four grooves, and connecting frames are welded to the outer walls of the rotating rods; the inner walls of the two sides of the bottom of the connecting frame are rotationally connected with rotating shafts, rotating wheels are connected to shaft rods of the rotating shafts in a sleeved mode, and locking assemblies are installed on the portions, inside and outside the bottom plate and inside the rotating rods, of the moving structure. Tools of the tool box are placed in a layered mode, the tools are convenient to take and place, and time and labor are saved when the tool box is moved and fixed to the ground.
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Description

Technical Field

[0001] This utility model relates to a repair and maintenance tool box, belonging to the field of repair and maintenance auxiliary tools. Background Technology

[0002] Currently, with the continuous deepening of modern production management, production efficiency and economic benefits have attracted great attention. Many new technologies and processes have been applied to the maintenance of machinery and equipment in cement plants. However, for a long time, the maintenance management of cement plant equipment in my country has lagged behind the updating of equipment technology. Based on the actual situation of cement plants in my country, it is necessary to provide maintenance personnel with suitable auxiliary devices to enable them to better maintain equipment and improve equipment operating efficiency. Most equipment failures in cement plants are caused by dust and abrasive particles; therefore, when maintaining equipment, it is necessary to remove dust and other contaminants first. For this purpose, we propose a maintenance tool kit.

[0003] Application number CN201820682369.9 discloses an auxiliary device for equipment maintenance in cement plants, including a cover and a body. The body is located at the lower end of the cover, and a climbing support frame is provided inside the body. A handle is fixedly installed on the surface of the climbing support frame. An upper storage box and a lower storage box are provided between the cover and the body. A blower is provided inside the upper storage box. The blower has a suction groove and a blowing pipe on its surface, with the blowing pipe located on one side of the suction groove. A pipe placement groove is provided on one side of the blower. A tool divider is provided inside the lower storage box. This utility model, by providing a blower in the upper storage box, allows for the removal of dust and other contaminants from the equipment before maintenance, reducing the failure rate caused by dust. It has a simple structure, reasonable design, and is easy to use. It allows for the orderly placement of different maintenance tools, facilitates dust removal, and improves work efficiency.

[0004] The aforementioned document discloses a cement plant equipment maintenance auxiliary device, which has the following drawbacks: when multiple tools are stored inside the device, the weight of the device increases. When the device needs to be moved forward, it must be moved onto a trolley before it can be moved, and then it must be removed from the trolley before it can be fixed to the ground, which is time-consuming and laborious.

[0005] Therefore, it can be seen that the existing equipment maintenance auxiliary device does not have the function of being easily moved and fixed on the ground. It is necessary to improve the existing shortcomings and provide a function that makes the device easy to move and fix on the ground. Summary of the Invention

[0006] The purpose of this utility model is to provide a maintenance toolbox that is easy to move, saves time and effort, is convenient to carry, can be placed stably at close range at the work site, makes it easy to pick up and put away tools, saves manpower, and can improve the efficiency of maintenance work.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model relates to a repair and maintenance toolbox, comprising a fixed structure, a movable structure, and a mobile structure. The mobile structure is welded to the lower surface of the fixed structure, and the movable structure is rotatably connected to the inner walls on both sides of the fixed structure. The fixed structure includes a base box, the lower surface of which is welded with a base plate. The mobile structure has four grooves on the bottom surface of the base plate. Several springs are welded to one inner wall of each of the four grooves, and spring baffles are welded to one end of each spring. Rotary rods are rotatably connected to the inner walls on both sides of the four grooves away from the spring baffles. Connecting frames are welded to the outer walls of the rotating rods, and rotating shafts are rotatably connected to the inner walls on both sides of the bottom of the connecting frames. Rotary wheels are sleeved on the shafts of the rotating shafts. The purpose of this design is that during the use of the toolbox, the rotating shaft fixes the rotating wheel to the connecting frame, making the connecting frame perpendicular to the ground. The rotating wheel is also perpendicular to the ground. Pushing the bottom box causes the bottom rotating wheel to rotate forward on the ground, and the rotating wheel moves the toolbox forward. When the toolbox needs to be fixed to the ground, rotating the rotating rod causes the connecting frame and rotating shaft to rotate, rotating the rotating wheel into the groove for storage. Pressing the spring baffle causes the spring to contract, pressing the bottom end of the rotating wheel against the spring baffle. Releasing the spring causes it to rebound, causing the spring baffle to press the rotating wheel, effectively fixing the rotating wheel in the groove for storage. In this way, the bottom of the base plate is flat and can be placed horizontally on the ground. This toolbox is easy to move and stably fixed to the ground, making it convenient to take out and put in tools, and saving time and effort when moving and fixing the toolbox on the ground.

[0009] Furthermore, the movable structure includes two storage boxes and two six-compartment boxes. Storage box baffles are welded to the opposite sides of the two storage boxes. Short rotating rods and long rotating rods are rotatably connected to the outer walls of the two sides of the bottom box, respectively. The top end of the short rotating rod and the middle end of the long rotating rod are rotatably connected to the outer walls of the two storage boxes. The top end of the long rotating rod is rotatably connected to the outer walls of the two six-compartment boxes. Another short rotating rod is also rotatably connected to the outer walls of the two storage boxes. The top end of the other short rotating rod is rotatably connected to the outer wall of the two six-compartment boxes. The purpose of this design is to store the largest tools in the bottom compartment, the regular-sized tools in the storage box, and smaller tools such as screws and test pens in the six-compartment box. To retrieve tools from the bottom compartment, simply pull the short levers on either side of the storage box outwards. The tops of these levers will rotate the storage box, causing the side panels to expand outwards to support the ground. This movement of the storage box and the six-compartment box together opens the top of the bottom compartment. Tools can then be easily retrieved from the storage box. To open the toolbox, rotate the short lever connecting the storage box and the six-compartment box to rotate the six-compartment box to the top sides of the storage box, opening the top of the storage box. The cover protects the top of the six-compartment box from dust, the six-compartment box protects the top of the storage box from dust, and the storage box protects the top of the bottom box from dust. When you need to take out the tools from the six-compartment box, you can observe the position of the tools through the viewing window, rotate the cover, and the cover will drive the sleeve to rotate on the limiting rod, so that the cover is limited on the six-compartment box, reducing storage space and improving the flexibility of the toolbox.

[0010] Furthermore, four cover plates are sequentially installed on the top surface formed by splicing the two six-compartment boxes. The four cover plates are sequentially divided into a first cover plate, a second cover plate, a third cover plate, and a fourth cover plate. The first cover plate and the second cover plate are connected by hinges, and the third cover plate and the fourth cover plate are connected by hinges. The first cover plate and the fourth cover plate are both connected to the corresponding side plates of the six-compartment box by hinges. The second and third cover plates have viewing windows. The hinge consists of a limiting rod and two sleeves rotatably connected to the limiting rod.

[0011] Furthermore, locking rods are welded to the outer walls of the top two sides of the base box. The sides of the two storage boxes that are close together are on the outer walls of the locking rods, and the sides of the two six-compartment boxes that are close together are also on the outer walls of the locking rods. The purpose of this arrangement is to limit the movement of the two storage boxes and the two six-compartment boxes inward during use, so that the two storage boxes and the six-compartment boxes are combined and parallel to the base box.

[0012] Furthermore, a handle is rotatably connected to the top inner wall of the lever. This design allows for easy lifting and movement of the toolbox by holding the handle during use.

[0013] Furthermore, the movable structure of this utility model includes a locking assembly. The locking assembly consists of a slidably connected square rod inside the rotating rod, with both ends of the square rod outside the rotating rod end. One end of the square rod is fitted with a threaded nut, and a locking spring is fitted onto the square rod. One end of the locking spring is pressed against the corresponding rotating rod end face, and the other end of the locking spring is pressed against the nut via a washer. A through hole is provided on the side wall of the base plate, and a knob shaft with slidable and rotatable connection is installed within the through hole. One end of the knob shaft is fixedly connected to the corresponding square rod end on the inner side of the base plate, and the other end of the knob shaft is fixedly connected to the knob on the outer side of the base plate. A pin is fixedly connected to the knob, and a locking hole is provided on the side wall of the base plate. When the knob is rotated to make the rotating wheel perpendicular to the ground, the pin engages with the locking hole. The purpose of this design is to ensure that the rotating wheel remains under manual control during unexpected events such as vibration, bumps, or lateral impacts during the movement of the toolbox, guaranteeing stable rotation and safe storage.

[0014] Furthermore, the locking assembly also has a storage pin hole on the side wall of the base plate. When the knob is turned to rotate the wheel to the storage state, the pin is inserted into the storage pin hole. The purpose of this design is that the pin-to-storage pin hole insertion structure can be used in conjunction with the structure of the spring and spring baffle fixing the wheel, which can effectively store and fix the wheel even when the toolbox is moved and experiences vibration, bumps, or lateral impacts.

[0015] This utility model has the following beneficial effects: The rotating wheel structure in the movable structure makes the operation of the toolbox time-saving and labor-saving, and easy to carry, eliminating the need to lift it from the trolley; when the toolbox needs to be fixed, the bottom plate of the box can be placed horizontally on the ground or operating platform, stably and close to the work site; the locking assembly ensures the stability and reliability of the toolbox's movement and storage; the short and long rotating rods on the toolbox allow the tools inside to be arranged in layers, facilitating easy access for workers during equipment inspection and maintenance, thereby saving manpower and improving the efficiency of inspection and maintenance work. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is a partial disassembled structural diagram of the present invention;

[0019] Figure 3This is a schematic diagram of the disassembled structure of this utility model;

[0020] Figure 4 This is a partial disassembled structural diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the disassembled movable structure of this utility model;

[0022] Figure 6 This is a schematic diagram showing the disassembled structure of the limiting rod and the two sets of sleeve blocks of this utility model;

[0023] Figure 7 This is a schematic diagram of the locking component of this utility model;

[0024] Figure 8 This is a schematic diagram of the top surface of the locking assembly of this utility model;

[0025] Figure 9 This is a schematic diagram of the bottom surface of the locking component of this utility model;

[0026] Figure 10 This is a perspective view of the main body of the locking component of this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] In the diagram: 1. Fixed structure; 101. Base box; 102. Locking rod; 103. Turning handle; 2. Movable structure; 201. Short turning rod; 202. Storage box; 203. Storage box baffle; 204. Long turning rod; 205. Six-compartment box; 206. Sleeve block; 207. Cover plate; 208. Viewing window; 209. Limiting rod; 3. Moving structure; 301. Base plate; 302. Groove; 303. Spring; 304. Spring baffle; 305. Turning rod; 306. Connecting frame; 307. Rotating shaft; 308. Rotating wheel; 401. Nut; 402. Baffle plate; 403. Locking spring; 404. Square rod; 405. Knob; 406. Pin; 407. Lock hole; 408. Knob shaft; 409. Storage pin hole. Detailed Implementation

[0029] The technical solutions of the present utility model will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. 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. Example 1

[0030] Please see Figure 1 - Figure 6As shown, this utility model is a maintenance toolbox, including a fixed structure 1, a movable structure 2, and a moving structure 3. The moving structure 3 is welded to the lower surface of the fixed structure 1. The movable structure 2 is rotatably connected to the inner walls on both sides of the fixed structure 1. The fixed structure 1 includes a base box 101, and a base plate 301 is welded to the lower surface of the base box 101. The moving structure 3 has grooves 302 on the bottom surface of the base plate 301. Several springs 303 are welded to one inner wall of one side of the four grooves 302. A spring baffle 304 is welded to one end of each spring 303. Rotating rods 305 are rotatably connected to the inner walls on both sides of the four grooves 302 away from the spring baffles 304. A connecting frame 306 is welded to the outer wall of the rotating rod 305. A rotating shaft 307 is rotatably connected to the inner walls on both sides of the bottom of the connecting frame 306. A rotating wheel 308 is sleeved on the shaft of the rotating shaft 307. The purpose of this setup is that, during the use of the toolbox, the pivot 307 fixes the rotating wheel 308 to the connecting frame 306, making the connecting frame 306 perpendicular to the ground. The rotating wheel 308 is also perpendicular to the ground, pushing the base box 101. The rotating wheel 308 at the bottom of the base box 101 rotates forward on the ground, causing the toolbox to move forward. When the toolbox needs to be fixed to the ground, the rotating rod 305 is rotated. The rotating rod 305 causes the connecting frame 306 and the pivot 307 to rotate, thus... The rotating wheel 308 rotates into the groove 302 for storage. Pressing the spring baffle 304 causes the spring 303 to retract, bringing the bottom end of the rotating wheel 308 against the spring baffle 304. Releasing the spring 303 causes the spring baffle 304 to press the rotating wheel 308, effectively fixing the rotating wheel 308 in the groove 302 for storage. In this way, the bottom of the base plate 301 is flat and can be placed horizontally on the ground. This toolbox is easy to move and fix on the ground, making it convenient to take out and put in tools. Moving and fixing the toolbox on the ground saves time and effort.

[0031] The active structure 2 includes two storage boxes 202 and two six-compartment boxes 205. Storage box baffles 203 are welded to the opposite sides of the two storage boxes 202. Short rotating rods 201 and long rotating rods 204 are rotatably connected to the outer walls of the two sides of the bottom box 101, respectively. The top of the short rotating rod 201 and the middle of the long rotating rod 204 are rotatably connected to the outer walls of the two storage boxes 202. The top of the long rotating rod 204 is rotatably connected to the outer walls of the two six-compartment boxes 205. Another short rotating rod 201 is rotatably connected to the outer walls of the two storage boxes 202. The top of the other short rotating rod 201 is rotatably connected to the outer wall of the two six-compartment boxes 205. The purpose of this design is to store the largest tools in the bottom box 101, the regular-sized tools in the storage box 202, and the smaller tools in the compartments of the six-compartment box 205 during use. When a tool needs to be retrieved from the bottom box 101, the two short levers 201 are pulled outwards. The tops of the levers 201 rotate the storage box 202, causing the storage box baffle 203 to expand outwards to the ground for support. The storage box 202 also moves the six-compartment box 205, opening the top of the bottom box 101. When a tool needs to be removed from the storage box 202, the storage box is rotated. The short rotating rod 201 at the connection between 202 and the six-compartment box 205 allows the six-compartment box 205 to be rotated and adjusted to the top sides of the storage box 202, thus opening the top of the storage box 202. The cover plate 207 provides dust protection for the top of the six-compartment box 205, the six-compartment box 205 provides dust protection for the top of the storage box 202, and the storage box 202 provides dust protection for the top of the bottom box 101. When it is necessary to take out the tools in the six-compartment box 205, the position of the tools can be observed through the viewing window 208. Rotating the cover plate 207 causes the sleeve block 206 to rotate on the limiting rod 209, thus limiting the cover plate 207 on the six-compartment box 205.

[0032] The top surface formed by splicing two six-compartment boxes 205 is sequentially equipped with four cover plates 207; the four cover plates are sequentially divided into a first cover plate, a second cover plate, a third cover plate, and a fourth cover plate; the first cover plate and the second cover plate are connected by hinges, the third cover plate and the fourth cover plate are connected by hinges, and the first cover plate and the fourth cover plate are both connected to the corresponding side plates of the six-compartment box 205 by hinges; the second and third cover plates 207 are provided with viewing windows 208; the hinge is composed of a limiting rod 209 and two sleeve blocks 206 rotatably connected to the limiting rod.

[0033] The top two outer walls of the base box 101 are welded with locking rods 102. The sides of the two storage boxes 202 that are close together are on the outer wall of the locking rods 102, and the sides of the two six-compartment boxes that are close together are on the outer wall of the locking rods. The purpose of this arrangement is to limit the movement of the two storage boxes and the two six-compartment boxes inward during use, so that the two storage boxes and the two six-compartment boxes are combined and parallel to the base box.

[0034] A handle 103 is rotatably connected to the top inner wall of the lever 102. The purpose of this design is to make it easy to lift and move the toolbox by holding the handle during use. Example 2

[0035] This utility model relates to a toolbox used by maintenance personnel in the repair of mechanical equipment in cement plants. Embodiment 1 addresses the use of the toolbox in a factory area with a flat surface, where it is pushed by hand. Because the weight of the toolbox presses on the rotating wheel, the wheel maintains tight contact with the ground. The wheel's tires, with their considerable width, further enhance friction with the ground, ensuring a tight seal. Therefore, under normal operating conditions and due to its self-locking capability, the wheel will not automatically move sideways when rotating forward or backward. This embodiment addresses the issue of vibration, bumps, or lateral impacts during toolbox movement by incorporating a locking component in the moving structure, ensuring the moving structure remains under manual control at all times. This locking component is an improvement upon Embodiment 1.

[0036] Please see Figure 7 - Figure 10 As shown, the locking assembly has a square hole inside the rotating rod 305, and a slidably connected square rod 404 is installed inside the square hole. The ends of the rotating rod and the square rod are placed outside the groove 302 and inside the base plate 301. A partition is provided between the top of the base plate and the bottom of the base box 101. This partition is detachable. Both ends of the square rod extend out of the rotating rod end, and one end is equipped with a threaded nut 401. A locking spring 403 is sleeved on the square rod. One end of the locking spring is pressed against the corresponding end face of the rotating rod, and the other end of the locking spring is connected to a washer 4. 02 is pressed into nut 401. A through hole is provided on the side wall of the base plate 301, and a knob shaft 408 with sliding and rotatable connection is installed in the through hole. One end of the knob shaft is fixedly connected to the corresponding square rod end on the inner side of the base plate 301, and the other end of the knob shaft is fixedly connected to the knob 405 on the outer side of the base plate. A pin 406 is provided on the knob, and a locking hole 407 is provided on the side wall of the base plate 301. When the knob is rotated to make the rotating wheel 308 rotate to a position perpendicular to the ground, the pin 406 is inserted into the locking hole 407. A receiving pin hole 409 is provided on the side wall of the base plate 301. When the knob is rotated to make the rotating wheel 308 rotate to the receiving state, the pin 406 is inserted into the receiving pin hole 409.

[0037] The locking assembly operates as follows: When it is necessary to move or retract the rotating wheel 308, pull the knob 405 outward to disengage the pin 406 from the locking hole 407 or the retraction pin hole 409 on the base plate 301. Simultaneously, the square rod 404 slides outward on the rotating rod 305, compressing the locking spring 403. Manually turn the knob 405, and the pin 406 rotates synchronously. When the pin rotates to the position opposite to the locking hole 407, release the knob. The rebound force of the locking spring 403 causes the pin 406 to... Insert the pin into the lock hole 407. Since the lock hole 407 is located at the corresponding position of the rotating wheel 308 in the perpendicular state to the ground, the perpendicular state of the rotating wheel 308 to the ground is locked. Similarly, when the pin is rotated to the position opposite to the storage pin hole 409, it is released. The rebound force of the locking spring 403 causes the pin 406 to be inserted into the storage pin hole 409. Since the storage pin hole 409 is located at the corresponding position of the rotating wheel 308 in the groove, the storage state of the rotating wheel 308 is locked.

Claims

1. A maintenance tool box comprising a fixed structure (1), a mobile structure (2) and a moving structure (3), characterized in that: The movable structure (3) is welded to the lower surface of the fixed structure (1), and the movable structure (2) is rotatably connected to both sides of the fixed structure (1). The fixed structure (1) includes a base box (101), and a base plate (301) is welded to the lower surface of the base box (101). The movable structure (3) has four grooves (302) on the bottom surface of the base plate (301). Several springs (303) are welded to one side of the inner wall of the four grooves (302). A spring baffle (304) is welded to one end of the several springs (303). Rotating rods (305) are rotatably connected to the inner walls of the four grooves (302) away from the spring baffles (304). A connecting frame (306) is welded to the outer wall of the rotating rod (305). A rotating shaft (307) is rotatably connected to the inner walls of the bottom two sides of the connecting frame (306). A rotating wheel (308) is sleeved on the shaft of the rotating shaft (307).

2. The service tool kit of claim 1, wherein: The active structure (2) includes two storage boxes (202) and two six-compartment boxes (205). Storage box baffles (203) are welded to the opposite side of the two storage boxes (202). Short rotating rods (201) and long rotating rods (204) are rotatably connected to the outer walls of the two sides of the bottom box (101). The top of the short rotating rod (201) and the middle of the long rotating rod (204) are rotatably connected to the outer walls of the two storage boxes (202). The top of the long rotating rod (204) is rotatably connected to the outer walls of the two six-compartment boxes (205). Another short rotating rod (201) is also rotatably connected to the outer walls of the two storage boxes (202). The top of the other short rotating rod (201) is rotatably connected to the outer wall of the two six-compartment boxes (205).

3. The service tool kit of claim 2, wherein: The top surface formed by splicing two of the six-compartment boxes (205) is sequentially equipped with four cover plates (207); the four cover plates are sequentially divided into a first cover plate, a second cover plate, a third cover plate and a fourth cover plate; the first cover plate and the second cover plate are connected by hinges, the third cover plate and the fourth cover plate are connected by hinges, the first cover plate and the fourth cover plate are both connected to the corresponding side plates of the six-compartment box (205) by hinges, and the second and third cover plates (207) are provided with viewing windows (208); the hinge is composed of a limiting rod (209) and two sets of sleeves (206) rotatably connected to the limiting rod.

4. The service kit of claim 2, wherein: The bottom box (101) has a locking rod (102) welded to the outer wall of the top two sides. The two storage boxes (202) are close to each other on the outer wall of the locking rod (102), and the two six-compartment boxes (205) are close to each other on the outer wall of the locking rod (102).

5. The maintenance toolbox according to claim 4, characterized in that: A throttle handle (103) is rotatably connected to the top inner wall of the lever (102).

6. The service kit of claim 1, wherein: The rotating rod (305) contains a slidingly connected square rod (404). Both ends of the square rod are outside the rotating rod end. One end of the square rod is fitted with a threaded nut (401). A locking spring (403) is fitted on the square rod. One end of the locking spring is pressed against the corresponding rotating rod end face. The other end of the locking spring is pressed against the nut (401) through a washer (402). A through hole is provided on the side wall of the base plate (301). A knob shaft (408) that is slidably and rotatably connected is installed in the through hole. One end of the knob shaft is fixedly connected to the end of the corresponding square rod (404) on the inside of the base plate. The other end of the knob shaft is fixedly connected to the knob (405) on the outside of the base plate. A pin (406) is fixedly connected to the knob. A lock hole (407) is provided on the side wall of the base plate (301). When the rotating wheel (308) rotates to a state perpendicular to the ground, the pin (406) is inserted into the lock hole (407).

7. The service kit of claim 6, wherein: The base plate (301) has a storage pin hole (409) on its side wall. When the rotating wheel (308) rotates to the storage state, the pin (406) is inserted into the storage pin hole (409).

Citation Information

Patent Citations

  • Device structure auxiliary device is used in cement plant

    CN208132927U