A maintenance trolley facilitating transfer

Abstract

The utility model provides a kind of maintenance trolley convenient to transfer, comprising: mobile trolley;Operation platform, operation platform lifting connection is in the top of mobile trolley, and operation platform bottom is equipped with locking mechanism, and locking mechanism includes the locking block of the one end fixed connection of locking lever, and the adjusting plate for supporting locking lever is movably equipped with in the both sides of operation platform bottom surface, and locking lever is used to push locking block into locking plate and lock;Rail column, locking plate is slidably connected to rail column, and locking plate is used to limit the position of operation platform.Locking is reliable and safe;Adjusting is flexible and convenient;Operation is labor-saving and efficient;Strong stability.

Description

Technical Field

[0001] This utility model relates to the field of instrument repair, and in particular to a repair cart that is easy to transport. Background Technology

[0002] Maintenance structures are commonly used in factories, automotive repair shops, aviation, and power systems. They can carry tools and parts, and are equipped with trays, lighting, and other auxiliary functions. Some models feature lifting or folding designs for easy access to confined spaces and rapid relocation. Their core advantages are improved maintenance efficiency, reduced labor intensity, and flexible use in multiple scenarios, making them particularly suitable for work environments requiring frequent relocation or emergency field repairs.

[0003] Currently, traditional maintenance trolleys primarily rely on manual or simple electric drive for planar movement. Their structural design focuses on load-bearing and transportation, lacking multi-functional integrated modules. Because they are not equipped with hydraulic or electric lifting systems, multi-degree-of-freedom angle adjustment mechanisms, or specialized clamping or limiting devices for specific equipment, external lifting equipment such as cranes and forklifts must be used in conjunction with the trolleys during actual maintenance to disassemble and install components.

[0004] Furthermore, this method has obvious drawbacks; the trolley cannot independently perform the positioning, support, and fixing operations of heavy or precision components. Utility Model Content

[0005] The main purpose of this utility model is to provide a maintenance trolley that is easy to transport, solving the problems of lifting and transporting equipment during maintenance.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a maintenance trolley that is easy to transport, comprising: Mobile cart; The operating platform is lifted and connected to the top of the mobile trolley. The bottom of the operating platform is equipped with a locking mechanism, which includes a locking rod with a locking block fixedly connected to one end. Adjustment plates for supporting the locking rod are movably provided on both sides of the bottom surface of the operating platform. The locking rod is used to push the locking block into the locking plate for locking. The track column is slidably connected to a locking plate, which is used to restrict the position of the operating platform.

[0007] In the preferred embodiment, the mobile trolley is equipped with multiple cylinders at intervals, and the extended ends of the cylinders are fixedly connected to the operating platform.

[0008] In the preferred embodiment, the adjusting plate includes a first adjusting plate and a second adjusting plate that are arranged at corresponding intervals.

[0009] In the preferred embodiment, the operating platform is provided with limit plates on both other sides, the extension ends of the limit plates are located on both sides of the locking plate, and the other end of the locking rod is fixedly connected to an adjustment handle.

[0010] In the preferred embodiment, the bottom surface of the operating platform is provided with a support column, the support column is provided with an offset groove, and an offset hole communicating with the offset groove is provided on one side of the support column. The locking rod is provided with a toggle block located in the offset groove, and the locking rod is movably disposed in the offset hole. The toggle block is used to control the rotation angle when the locking rod rotates. The locking rod is provided with a support plate, and springs are provided on the corresponding surfaces of the support column and the support plate.

[0011] In the preferred embodiment, an adjustment hole is provided on the top surface of the operating platform, and a fixed plate is movably installed in the adjustment hole. A rectangular groove is provided on one side of the fixed plate, and the rectangular groove is used for the locking rod to be locked after the locking block is pushed into the locking plate.

[0012] In the preferred embodiment, the mobile trolley includes uprights fixed between the opposite corners of the base plate and the top plate, and casters are provided on the bottom feet of the base plate. The top plate has multiple protrusion holes spaced apart to facilitate the retraction of the cylinder extension end.

[0013] In the preferred embodiment, a first rectangular hole is provided on the first adjusting plate, a second rectangular hole is provided on the second adjusting plate, a first bolt is movably provided on one side of the first rectangular hole, the first bolt is used to rotatably connect the fixing plate, and a locking rod is movably provided in the first rectangular hole and the second rectangular hole.

[0014] In the preferred embodiment, a circular hole is provided on the first adjusting plate, and a locking rod is movably installed in the circular hole.

[0015] In the preferred embodiment, a third rectangular hole is provided on the locking plate. The third rectangular hole is used to push the locking rod to insert and lock the locking block. Second bolts are provided on both sides of the locking plate. Track posts are provided at intervals on one side of the locking plate. Slide rail grooves are provided on the track posts. The second bolts are used to fix the locking plate to the slide rail grooves. The beneficial effects of this utility model's conveniently transportable maintenance trolley are as follows: 1. Reliable and safe locking: The locking block engages with the rectangular hole of the locking plate, combined with the limiting plate and the adjusting plate, to achieve double limiting and prevent the platform from slipping unexpectedly; the locking rod engages with the rectangular groove to effectively prevent the fixing plate from loosening or shifting, thus improving safety. 2. Flexible and convenient adjustment: The locking plate can be adjusted up and down along the slide rail groove of the track column and fixed with bolts to adapt to different working height requirements; 3. Effortless and efficient operation: The locking lever is equipped with an adjustment handle and a spring return mechanism, making manual or mechanical operation easy and locking and unlocking responses quick; 4. High stability: Multiple limit and clamping designs ensure the device remains stable during operation, reducing the risk of vibration or displacement. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of this utility model; Figure 2 This is a utility model Figure 1 Structural diagram of A in the middle; Figure 3 This is a bottom-view perspective structural diagram of Embodiment 1 of this utility model; Figure 4 This is a utility model Figure 3 Structural diagram of B in the middle; Figure 5 This is a structural diagram of the locking mechanism of this utility model; Figure 6 This is a structural diagram of the supporting column of this utility model; Figure 7 This is a structural diagram of the locking plate and track column of this utility model; Figure 8 This is a three-dimensional structural diagram of Embodiment 2 of this utility model; Figure 9 This is a utility model Figure 8 Structural diagram of C; Figure 10 This is a structural diagram of the fixing plate of this utility model.

[0017] In the diagram: 1. Mobile trolley; 101. Base plate; 102. Top plate; 1021. Extension hole; 103. Upright pole; 104. Caster wheel; 2. Operating platform; 201. Adjustment hole; 3. Cylinder; 4. First adjusting plate; 401. First rectangular hole; 402. Round hole; 5. Second adjusting plate; 501. Second rectangular hole; 6. Limiting plate; 7. Locking mechanism; 701. Locking rod; 702. Actuating block; 703. Adjusting handle; 704. Locking block; 8. Supporting post; 801. Offset groove; 802. Offset hole; 9. Supporting plate; 10. Spring; 11. Fixing plate; 1101. Rectangular groove; 12. Locking plate; 1201. Third rectangular hole; 13. Track post; 1301. Slide rail groove; 14. First bolt; 15. Second bolt. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0019] Example 1 Embodiment 1 of this application provides a maintenance trolley that is easy to transport.

[0020] refer to Figure 1 and Figure 2The operating platform 2 is connected to the top of the mobile trolley 1 via a lifting structure, allowing for flexible height adjustment according to operational needs. A locking mechanism 7 is located at the bottom of the operating platform 2, used to securely lock the platform after it has been raised to the target position. The locking mechanism 7 mainly consists of a locking rod 701 and a locking block 704 fixedly connected to one end of the rod. When the platform is in position, the locking rod 701 is manually driven to push the locking block 704 into the locking plate 12, thus completing the locking action. To ensure the smooth and reliable operation of the locking rod 701, adjustable plates are movably installed on both sides of the bottom surface of the operating platform 2 to support and guide the movement trajectory of the locking rod 701. A track column 13 is vertically installed on one side of the mobile trolley 1, with a locking plate 12 slidably connected to it. This locking plate 12 can move up and down along the track column 13 and engages with the locking block 704 at a specific height, effectively limiting the position of the operating platform 2 and preventing accidental slippage or shaking during operation, significantly improving the safety and stability of the overall structure. The locking plate 12 is L-shaped, and sliding plates are fixedly connected to both sides of the L-shaped locking plate 12. The sliding plates are fixedly connected to the track column 13 by the second bolt 15, so that the locking plate 12 can be adjusted on the track column 13 when the operating platform 2 is raised or lowered.

[0021] refer to Figure 1 Multiple cylinders 3 are spaced apart on the top of the mobile trolley 1. These cylinders 3 are evenly distributed along the bottom of the operating platform 2, and the extended ends of their piston rods are firmly connected to the bottom surface of the operating platform 2. Through the synchronous extension and retraction of the cylinders 3, the smooth lifting and lowering control of the operating platform 2 can be achieved, which not only improves the stability of the lifting process, but also effectively bears the working load and ensures the accurate positioning and reliable support of the platform at different height positions.

[0022] refer to Figure 1 and Figure 2 The mobile trolley 1 adopts a frame structure, including a base plate 101 and a top plate 102 arranged parallel to each other. The two are connected at the four corners by vertically fixed uprights 103, forming a stable support frame to ensure high overall structural rigidity and load-bearing capacity. The base plate 101 is equipped with casters 104 at each of its four bottom corners, facilitating flexible movement and turning of the trolley within the work area. The top plate 102 has multiple protruding holes 1021 spaced apart. These holes correspond one-to-one with the cylinders 3 installed below, allowing the piston rods of the cylinders 3 to pass smoothly and extend and retract freely during lifting and lowering, avoiding interference with the top plate 102 and ensuring the smoothness and reliability of the lifting and lowering operation of the operating platform 2.

[0023] refer to Figure 1The adjustment plate includes a first adjustment plate 4 and a second adjustment plate 5, which are symmetrically arranged on both sides of the bottom surface of the operating platform 2, in a spaced and corresponding layout. This structural design not only provides stable support and guidance for the locking rod 701, but also allows for fine adjustment of its position and angle according to actual working conditions, ensuring that the locking block 704 is accurately aligned and evenly stressed when pushed into the locking plate 12, thereby improving the reliability and smooth operation of the entire locking mechanism 7.

[0024] refer to Figure 1 and Figure 2 The first adjusting plate 4 has a circular hole 402, which serves as a guide channel for the locking rod 701 to pass through. The locking rod 701 can slide freely axially within the circular hole 402 and rotate slightly when necessary, thus ensuring smooth operation and uniform force distribution during pushing and pulling. The inner wall of the circular hole 402 is precision machined to maintain an appropriate gap with the locking rod 701, reducing frictional resistance and effectively limiting the rod's wobble, thereby improving the overall accuracy and reliability of the locking mechanism 7. The second adjusting plate 5 has a second rectangular hole 501, which allows the locking block 704 to move freely in and out, and facilitates the insertion of the locking block 704 into the locking plate 12 for locking.

[0025] refer to Figure 2 and Figure 3 Limiting plates 6 are fixedly installed on both sides of the operating platform 2. The limiting plates 6 extend outward in the horizontal direction, with their extended ends located on the left and right sides of the locking plate 12, respectively. They are used to limit the locking plate 12 in the lateral direction, so that the locking block 704 in the locking mechanism 7 can be quickly positioned on the locking plate 12, thereby improving the stability of the overall structure. At the same time, an adjusting handle 703 is fixedly connected to the other end of the locking rod 701. The adjusting handle 703 allows a person to drive the locking rod 701 to adjust its position, realizing the pushing or pulling action of the locking block 704, making the locking and unlocking operation more convenient and controllable, and further enhancing the safety and practicality of the device.

[0026] refer to Figure 4 , Figure 5 and Figure 6The bottom surface of the operating platform 2 is provided with a supporting post 8, which has an offset groove 801 inside and an offset hole 802 communicating with the offset groove 801 on one side. A locking rod 701 passes through the offset hole 802 and can slide axially and rotate within it at a limited angle. A toggle block 702 is fixed on the locking rod 701. The toggle block 702 is located within the offset groove 801 and is limited by the side wall of the offset groove 801 when the locking rod 701 rotates, thereby precisely controlling its rotation angle and preventing excessive rotation that could lead to mechanism failure. In addition, a supporting plate 9 is provided on the locking rod 701, which is positioned opposite the supporting post 8, and a spring 10 is installed between them. The spring 10 provides preload under normal conditions, keeping the locking rod 701 in its initial or locked position. It also acts as a buffer and rebound mechanism during unlocking or resetting, improving the operational smoothness and reliability of the locking mechanism 7.

[0027] refer to Figure 7 The locking plate 12 has a third rectangular hole 1201. This hole guides and coordinates with the locking rod 701 after the operating platform 2 is raised or lowered to its designated position, ensuring that the locking block 704 at its front end is accurately inserted into the hole, thus reliably locking the operating platform 2 and preventing displacement or shaking during operation. Second bolts 15 are provided on both the left and right sides of the locking plate 12 for securely connecting it to the track column 13. The track column 13 is vertically positioned on one side of the moving trolley 1, and its side facing the locking plate 12 has a longitudinally extending slide rail groove 1301. The second bolts 15 pass through the locking plate 12 and are embedded in the slide rail groove 1301, allowing the locking plate 12 to slide up and down along the slide rail groove 1301 to adapt to different locking heights, and also allowing it to be fixed in a specific position by tightening the bolts. This structure balances adjustment flexibility and locking stability, effectively improving the safety and practicality of the entire lifting and locking system.

[0028] The implementation principle of this embodiment 1 is as follows: The operating principle of this device is based on the coordinated operation of the mobile trolley 1, the lifting operation platform 2, and the locking mechanism 7. The operation platform 2 achieves smooth lifting and lowering through multiple cylinders 3. The piston rod of the cylinder 3 extends and retracts through the extension hole 1021 on the top plate 102. When the platform is raised to the target height, the locking mechanism 7 is activated: the operator rotates the adjusting handle 703, causing the locking rod 701 to slide and rotate within the offset hole 802 of the abutment column 8. The actuating block 702 on it is limited by the offset groove 801 to ensure accurate rotation angle. At the same time, the locking rod 701 pushes the locking block 704 to insert into the third rectangular hole 1201 of the locking plate 12. The locking rod 701 drives the locking block 704 to rotate a certain angle and complete the locking. The locking plate 12 is slidably installed in the slide rail groove 1301 of the track column 13 by the second bolt 15, and its position can be adjusted and fixed according to the height of the platform. Limiting plates 6 are provided on both sides of the operating platform 2 to prevent the locking plate 12 from shifting laterally; the first and second adjusting plates 4 and 5 provide guiding support for the locking rod 701 to ensure its stable movement. A spring 10 is provided between the supporting column 8 and the supporting plate 9 to provide a reset preload force, ensuring smooth and reliable unlocking and locking actions. The entire system is compact in structure, easy to operate, and combines flexibility and safety, making it suitable for work scenarios requiring frequent lifting and positioning.

[0029] The difference between Example 2 and Example 1 is that: refer to Figure 8 , Figure 9 and Figure 10 The top surface of the operating platform 2 has an adjustment hole 201 that extends through both the upper and lower surfaces of the platform to accommodate and cooperate with the rotation of the fixing plate 11. The fixing plate 11 is movably installed in the adjustment hole 201 and can be finely adjusted or replaced according to actual usage needs to adapt to the locking requirements under different working conditions. A rectangular groove 1101 is provided on one side of the fixing plate 11, which faces the direction of the locking mechanism 7 and its size matches the diameter of the locking rod 701. When the operating platform 2 is raised or lowered to the target height, the locking rod 701 is driven forward, causing the locking block 704 to be inserted into the third rectangular hole 1201 of the locking plate 12, and the locking rod 701 is swung to tilt to one side so that the locking block 704 is engaged with the side of the third rectangular hole 1201 to complete the initial locking; at the same time, the rod body of the locking rod 701 is embedded in the rectangular groove 1101 to achieve secondary limiting and locking, effectively preventing the locking rod 701 from retracting or loosening due to vibration or external force during operation. This dual-locking structure significantly improves the safety and stability of the entire platform system, ensuring reliable support during high-altitude or heavy-load operations.

[0030] refer to Figure 8 and Figure 9The first adjusting plate 5 has a first rectangular hole 401, and the second adjusting plate 5 has a corresponding second rectangular hole 501. The two holes are aligned to enable coordinated movement between the components. A first bolt 14 is movably mounted on one side of the first rectangular hole 401. This bolt not only serves as a connection but also allows for the rotational connection between the first adjusting plate 5 and the fixed plate 11, thus providing the structure with a certain degree of rotational freedom for adjusting angles or positions. Furthermore, a locking rod 701 passes through and is movably mounted in both the first rectangular hole 401 and the second rectangular hole 501. It can slide or be positioned within these holes to lock or release the relative positions of the adjusting plates. The overall structure, through the cooperation of bolts, rectangular holes, and a locking rod, achieves both flexible adjustment and reliable fixation, enhancing the practicality and stability of the device.

[0031] The implementation principle of this embodiment 2 is as follows: The device adjusts the position of the fixing plate 11 through the adjustment hole 201 on the operating platform 2. The fixing plate 11 can move flexibly within the hole to adapt to different installation requirements. A rectangular groove 1101 is provided on one side, which works in conjunction with the locking mechanism: when the locking rod 701 pushes the locking block 704 into the locking plate 12, the locking rod 701 smoothly engages in the rectangular groove 1101, thereby firmly locking the fixing plate 11 and preventing loosening or displacement. Simultaneously, the rectangular holes on the first and second adjustment plates cooperate with the locking rod and are rotatably connected by the first bolt 14, balancing adjustment freedom and structural stability. The overall design achieves an organic unity of convenient adjustment, rapid locking, and reliable fixing, improving the practicality and safety of the equipment.

[0032] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A maintenance trolley that is easy to transport, characterized in that, include: Mobile cart (1); The operating platform (2) is connected to the top of the mobile trolley (1) in a lifting manner. The bottom of the operating platform (2) is provided with a locking mechanism (7). The locking mechanism (7) includes a locking rod (701) with a locking block (704) fixedly connected to one end. Adjustment plates for supporting the locking rod (701) are movably provided on both sides of the bottom surface of the operating platform (2). The locking rod (701) is used to push the locking block (704) into the locking plate (12) for locking. The track column (13) is slidably connected to a locking plate (12), which is used to restrict the position of the operating platform (2).

2. The maintenance trolley for easy transport according to claim 1, characterized in that, Multiple cylinders (3) are spaced apart on the mobile trolley (1), and the extended ends of the cylinders (3) are fixedly connected to the operating platform (2).

3. The maintenance trolley for easy transport according to claim 1, characterized in that, The adjustment plate includes a first adjustment plate (4) and a second adjustment plate (5) that are set at corresponding intervals.

4. The maintenance trolley for easy transport according to claim 1, characterized in that, The operating platform (2) is provided with limit plates (6) on both sides. The extension ends of the limit plates (6) are located on both sides of the locking plate (12), and the other end of the locking rod (701) is fixedly connected to the adjustment handle (703).

5. A maintenance trolley for easy transport according to claim 1, characterized in that, The bottom surface of the operating platform (2) is provided with a support post (8), and an offset groove (801) is provided in the support post (8). An offset hole (802) communicating with the offset groove (801) is provided on one side of the support post (8). A toggle block (702) located in the offset groove (801) is provided on the locking rod (701), and the locking rod (701) is movably set in the offset hole (802). The toggle block (702) is used to control the rotation angle when the locking rod (701) rotates. A support plate (9) is provided on the locking rod (701), and a spring (10) is provided on the corresponding surfaces of the support post (8) and the support plate (9).

6. A maintenance trolley for easy transport according to claim 1, characterized in that, The top surface of the operating platform (2) is provided with an adjustment hole (201), and a fixed plate (11) is movably provided in the adjustment hole (201). A rectangular groove (1101) is provided on one side of the fixed plate (11). The rectangular groove (1101) is used to lock the rod (701) after the locking block (704) is pushed into the locking plate (12).

7. A maintenance trolley for easy transport according to claim 2, characterized in that, The mobile trolley (1) includes a base plate (101) and a top plate (102) with uprights (103) fixed between their opposite corners, and casters (104) are provided on the bottom feet of the base plate (101). Multiple extension holes (1021) are spaced apart on the top plate (102). The extension holes (1021) are used to facilitate the retraction of the extension end of the cylinder (3).

8. A maintenance trolley for easy transport according to claim 3, characterized in that, The first adjusting plate (4) has a first rectangular hole (401), and the second adjusting plate (5) has a second rectangular hole (501). A first bolt (14) is movably provided on one side of the first rectangular hole (401). The first bolt (14) is used to rotate and connect the fixing plate (11). The locking rod (701) is movably provided in the first rectangular hole (401) and the second rectangular hole (501).

9. A maintenance trolley for easy transport according to claim 3, characterized in that, The first adjusting plate (4) has a round hole (402) and a locking rod (701) is movably installed in the round hole (402).

10. A maintenance trolley for easy transport according to claim 1, characterized in that, The locking plate (12) has a third rectangular hole (1201) for pushing the locking rod (701) to insert and lock the locking block (704). The locking plate (12) has a second bolt (15) on both sides. The locking plate (12) has a track post (13) spaced apart on one side. The track post (13) has a slide rail groove (1301) on it. The second bolt (15) is used to fix the locking plate (12) to the slide rail groove (1301).

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