Gravity sensing crane dismounting positioning device
By installing pressure sensors and transmission mechanisms in the crane dismantling and positioning device, the problems of tilting and swaying during crane dismantling are solved, enabling real-time pressure monitoring and height adjustment of the crane, and ensuring the stability and safety of the dismantling process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI PINDA CONSTRUCTION ENGINEERING IND CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional cranes lack real-time monitoring and adjustment methods during dismantling, which may cause the crane to tilt or sway during the dismantling process, increasing the difficulty of the operation and posing safety hazards.
The gravity-sensing crane disassembly and positioning device uses a pressure sensor installed on the top of the support block to monitor pressure changes in real time, and uses a two-way lead screw, push plate and transmission mechanism to adjust the height and maintain the stability of the crane.
It enables real-time pressure monitoring and precise height adjustment during the crane dismantling process, ensuring the crane remains stable and reducing safety risks.
Smart Images

Figure CN224391079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane technology, specifically to a gravity-sensing crane disassembly and positioning device. Background Technology
[0002] Maintaining the stability of a crane is crucial during dismantling operations. Traditional crane dismantling methods often lack effective real-time monitoring and adjustment mechanisms. During dismantling, the pressure on the bottom of the crane changes constantly due to the dismantling sequence and weight distribution of various components. If these pressure changes are not monitored and adjusted accordingly in a timely manner, the crane may experience instability such as tilting or swaying. This not only increases the difficulty of the dismantling operation but may also lead to safety accidents, posing a serious threat to on-site personnel and equipment. Utility Model Content
[0003] In view of the problems existing in the above-mentioned crane disassembly and positioning devices, this utility model is proposed.
[0004] Therefore, the purpose of this utility model is to provide a gravity-sensing crane disassembly and positioning device, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A gravity-sensing crane disassembly and positioning device includes a base plate and support blocks. The upper surface of the base plate has multiple through slots, and multiple support blocks are slidably engaged in the interior of the corresponding through slots. A pressure sensor is fixedly installed on the top of each support block. A first inclined surface is provided on both sides of the bottom end of each support block. A bidirectional lead screw is rotatably installed inside the through slot. Push plates are threaded onto both ends of the bidirectional lead screw. A second inclined surface is provided on the upper surface of each push plate and on the side closest to the corresponding support block. The first inclined surface on both sides abuts against the corresponding second inclined surface. A groove is provided on the lower surface of the base plate and on one side of the through slot. A transmission mechanism for driving the bidirectional lead screw to rotate is provided inside the groove.
[0007] Preferably, the transmission mechanism includes a first bevel gear and a second bevel gear. A transmission rod is vertically rotatably mounted on the inner wall of the groove. One end of the bidirectional lead screw extends into the interior of the groove. The first bevel gear is fixedly sleeved on the lower end of the transmission rod. The second bevel gear is fixedly sleeved on the end of the bidirectional lead screw near the transmission rod. The first bevel gear and the second bevel gear are meshed together. A motor is fixedly mounted on the upper surface of the base plate at a position corresponding to the transmission rod. The output end of the motor is fixedly connected to one end of the transmission rod.
[0008] Preferably, a slide bar is arranged parallel to one side of the bidirectional lead screw, both ends of the slide bar are fixedly connected to the inner wall of the through groove, and one side of the push plate is movably sleeved with the slide bar.
[0009] Preferably, baffles are fixedly provided on both sides of the lower surface of the support block.
[0010] Preferably, the cross-sections of the support block and the through groove are both rectangular, and the sidewall of the support block abuts against the inner wall of the through groove.
[0011] Preferably, all of the motors are geared motors.
[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0013] 1. This utility model, by setting a pressure sensor on the top of the support block, can detect the pressure at the bottom of each position during the disassembly of the crane in real time. When the pressure of each part of the crane changes, the pressure sensor can promptly feed back the data, allowing the operator to grasp the stress state of the crane at the first time and provide an accurate basis for subsequent adjustment operations.
[0014] 2. This utility model, by setting up a bidirectional lead screw, a push plate, and a transmission mechanism, can accurately adjust the height of the crane in each direction according to the pressure monitoring. When the pressure in a certain direction is too high or too low, the corresponding motor is started, and the bidirectional lead screw is driven to rotate through the transmission rod, the first bevel gear and the second bevel gear, so that the push plate moves along the slide rod. The second inclined surface on the push plate interacts with the first inclined surface at the bottom of the support block, pushing the support block to rise or fall, thereby adjusting the height of the crane in that direction and maintaining the stability of the crane disassembly process. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1 This is a structural schematic diagram of a gravity-sensing crane disassembly and positioning device proposed in this utility model;
[0017] Figure 2 for Figure 1 A schematic diagram of the structure viewed from below;
[0018] Figure 3 This is a perspective view of the transmission mechanism in this utility model.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Base plate; 2. Support block; 3. Pressure sensor; 4. Motor; 5. Push plate; 6. Two-way lead screw; 7. Slide rod; 8. Baffle; 9. Transmission rod; 10. First bevel gear; 11. Second bevel gear. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0022] This utility model discloses a gravity-sensing crane disassembly and positioning device.
[0023] Reference Figure 1-3 A gravity-sensing crane disassembly and positioning device includes a base plate 1 and support blocks 2. Multiple through slots are formed on the upper surface of the base plate 1. Multiple support blocks 2 are slidably engaged within the corresponding through slots. Both the support blocks 2 and the through slots have rectangular cross-sections. The sidewalls of the support blocks 2 abut against the inner walls of the through slots, preventing the support blocks 2 from rotating, thus allowing for stable sliding. A pressure sensor 3 is fixedly mounted on the top of each support block 2. First inclined surfaces are formed on both sides of the bottom end of each support block 2. A bidirectional lead screw 6 is rotatably mounted inside the through slots, with both ends of the bidirectional lead screw 6... A push plate 5 is threaded onto a push plate 5. A slide rod 7 is arranged parallel to one side of the bidirectional screw 6. Both ends of the slide rod 7 are fixedly connected to the inner wall of the through groove. One side of the push plate 5 is movably sleeved with the slide rod 7, so that the push plate 5 will not rotate with the bidirectional screw 6, that is, it can slide stably. A second inclined surface is opened on the upper surface of the push plate 5 and on the side close to the corresponding support block 2. The first inclined surface on both sides abuts against the corresponding second inclined surface. A groove is opened on the lower surface of the base plate 1 and on the side of the through groove. A transmission mechanism that drives the bidirectional screw 6 to rotate is set inside the groove.
[0024] Reference Figure 1-3 The transmission mechanism includes a first bevel gear 10 and a second bevel gear 11. A transmission rod 9 is vertically rotatably mounted on the inner wall of the groove. One end of a bidirectional lead screw 6 extends into the interior of the groove. The first bevel gear 10 is fixedly sleeved on the lower end of the transmission rod 9, and the second bevel gear 11 is fixedly sleeved on the end of the bidirectional lead screw 6 near the transmission rod 9. The first bevel gear 10 and the second bevel gear 11 are meshed and connected. A motor 4 is fixedly mounted on the upper surface of the base plate 1 at a position corresponding to the transmission rod 9. The output end of the motor 4 is fixedly connected to one end of the transmission rod 9. All motors 4 are geared motors, which can provide a large and stable transmission force.
[0025] Reference Figure 1-3 Both sides of the lower surface of the support block 2 are fixedly provided with baffles 8 to prevent the support block 2 from slipping out of the through groove as much as possible.
[0026] In this invention, the gravity-sensing crane disassembly and positioning device is first placed at a suitable position at the bottom of the crane, ensuring that the pressure sensor 3 on the top of the support block 2 is in close contact with the bottom of the crane. During the crane disassembly process, the pressure sensor 3 monitors the pressure at each position in real time and transmits the pressure data to the operator or relevant control system. When a deviation is detected between the pressure at a certain position and the expected pressure value, the operator can start the motor 4 at the corresponding position according to the actual situation. After the motor 4 starts, its output end drives the transmission rod 9 to rotate, and the first bevel gear 10 at the lower end of the transmission rod 9 rotates accordingly. Since the first bevel gear 10 and the second bevel gear 11 are meshed, the second bevel gear 11 drives the bidirectional lead screw 6 to rotate. When the bidirectional lead screw 6 rotates, the push plates 5 with threaded sleeves at both ends move in opposite directions or away from each other along the slide rod 7. When the push plates 5 move in opposite directions, the second inclined surface on the push plate 5 interacts with the first inclined surface at the bottom of the support block 2. The support block 2 slides upward within the through slot, raising the crane's height at that position. When the push plate 5 moves in opposite directions, the support block 2 slides downward under its own weight, lowering the crane's height at that position. In this way, the crane's height in each direction is adjusted based on pressure monitoring, ensuring the crane remains stable during disassembly. The baffles 8 on both sides of the lower surface of the support block 2 act as limiters, preventing the support block 2 from slipping out of the through slot during sliding, ensuring the safety and stability of the device. Furthermore, since both the support block 2 and the through slot have rectangular cross-sections, and the sidewall of the support block 2 abuts against the inner wall of the through slot, the support block 2 can only slide in a straight line without rotation, further improving the accuracy and reliability of the adjustment. In addition, multiple motors 4 are geared motors, providing large and stable transmission power, ensuring smooth rotation of the bidirectional lead screw 6 and precise movement of the push plate 5, thereby achieving precise adjustment of the crane's height.
[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A gravity-sensing crane disassembly and positioning device, comprising a base plate (1) and a support block (2), characterized in that, The upper surface of the base plate (1) is provided with multiple through slots, and multiple support blocks (2) are slidably engaged in the interior of the corresponding through slots. A pressure sensor (3) is fixedly installed on the top of the support block (2). A first inclined surface is provided on both sides of the bottom end of the support block (2). A bidirectional lead screw (6) is rotatably installed inside the through slot. Push plates (5) are threaded onto both ends of the bidirectional lead screw (6). A second inclined surface is provided on the upper surface of the push plate (5) and on the side close to the corresponding support block (2). The first inclined surfaces on both sides abut against the corresponding second inclined surfaces. A groove is provided on the lower surface of the base plate (1) and on the side of the through slot. A transmission mechanism for driving the bidirectional lead screw (6) to rotate is provided inside the groove.
2. The gravity-sensing crane disassembly and positioning device according to claim 1, characterized in that, The transmission mechanism includes a first bevel gear (10) and a second bevel gear (11). A transmission rod (9) is vertically rotatably mounted on the inner wall of the groove. One end of the bidirectional lead screw (6) extends into the interior of the groove. The first bevel gear (10) is fixedly sleeved on the lower end of the transmission rod (9). The second bevel gear (11) is fixedly sleeved on the end of the bidirectional lead screw (6) near the transmission rod (9). The first bevel gear (10) and the second bevel gear (11) are meshed and connected. A motor (4) is fixedly mounted on the upper surface of the base plate (1) at a position corresponding to the transmission rod (9). The output end of the motor (4) is fixedly connected to one end of the transmission rod (9).
3. The gravity-sensing crane disassembly and positioning device according to claim 1, characterized in that, A slide rod (7) is arranged parallel to one side of the bidirectional lead screw (6). Both ends of the slide rod (7) are fixedly connected to the inner wall of the through groove. One side of the push plate (5) is movably sleeved with the slide rod (7).
4. The gravity-sensing crane disassembly and positioning device according to claim 1, characterized in that, Both sides of the lower surface of the support block (2) are fixedly provided with baffles (8).
5. The gravity-sensing crane disassembly and positioning device according to claim 1, characterized in that, The cross-sections of the support block (2) and the through groove are both rectangular, and the side wall of the support block (2) abuts against the inner wall of the through groove.
6. The gravity-sensing crane disassembly and positioning device according to claim 2, characterized in that, All of the motors (4) are geared motors.