Municipal engineering kerb lifting device

Abstract

The utility model belongs to the technical field of stone plate clamps, and particularly relates to a municipal engineering curb lifting device which comprises two thin plates and a hanging plate, the two plates are stacked and pivot relative to each other around a rotation axis, the bottoms of the plates extend downwards to form chucks for restraining curbs, tension assemblies are installed on the bottom faces of the inner corners of the plates and the chucks, and the tension assemblies are connected with the hanging plate. The hanging plate is fixed to the position of a chuck at the bottom end of a plate, a clamping assembly is hinged to the hanging plate, a first spring is arranged between the tension assembly and the clamping assembly, the clamping assembly is kept in an inward-retracting inclined state in a normal state through the first spring, and the tension assembly comprises two opposite fixing plates and a fixing rod connected to the two fixing plates. The fixing rod is sleeved with a second spring, and a sliding block is further installed on the fixing rod in a sliding mode. According to the device, the situation that shaking or falling possibly occurs in the lifting or transporting process is prevented, the safety and efficiency of construction are greatly improved, and the clamping stability and safety are enhanced by combining the pulling force assembly and the clamping assembly.

Description

Technical Field

[0001] This utility model belongs to the field of stone slab clamping technology, specifically relating to a municipal engineering curbstone lifting device. Background Technology

[0002] Curbstones are marker stones placed between the road surface and other structures. They are generally required between the median strip and the road surface in urban roads, and between the sidewalk and the road surface. They are also commonly found at the edges of the central median strip, the right edge of the driving lane, or the outer edge of the shoulder on highways. In municipal engineering construction, the laying and replacement of curbstones (road curb stones) are common construction steps. Traditional curbstone hoisting methods typically involve binding with wire ropes or manual handling, which suffer from low efficiency, significant safety hazards, and easy damage to the stone. Traditional methods are difficult to adapt to curbstones of different sizes and shapes, and the wire ropes are prone to slippage, leading to unstable hoisting. While existing mechanical clamps (such as hydraulic grippers or spring clamping devices) can partially improve efficiency, they still have drawbacks such as complex structures, unadjustable clamping force, and lack of cushioning protection, failing to meet the needs of construction sites for lightweight, adaptable, and anti-fall-off features. Utility Model Content

[0003] The purpose of this invention is to provide a lifting device for curb stones in municipal engineering, which can prevent swaying or falling off during lifting or transportation, greatly improving the safety and efficiency of construction. The combination of the tension component and the clamping component enhances the stability and safety of clamping.

[0004] The specific technical solution adopted in this utility model is as follows:

[0005] A municipal engineering curbstone lifting device includes two thin plates and a hanging plate. The two plates are stacked and pivot relative to each other around a rotation axis. The bottom of the plates extends downward to form a clamp for constraining the curbstone. A tension component is installed at the bottom of the inner corner of the plates and the clamp. The hanging plate is fixed to the position of the clamp at the bottom of the plates. A clamping component is hinged to the hanging plate. A first spring is provided between the tension component and the clamping component, and the clamping component is kept in an inward tilted state under normal conditions by the first spring.

[0006] In a preferred embodiment, the tension assembly includes two opposing fixed plates and a fixed rod connected to the two fixed plates. A second spring is fitted on the fixed rod, and a slider is slidably mounted on the fixed rod. One end of the second spring is fixed to the fixed plate away from the clamping assembly, and the other end is fixed to the slider.

[0007] In a preferred embodiment, the clamping assembly includes a steel base on which a first lug is hinged to a hanging plate, and a second lug located above the first lug, on which a slider is also rotatably connected.

[0008] In a preferred embodiment, one end of the first spring is fixed to the slider of the fixed rod, and the other end is fixed to the slider of the second lug.

[0009] In a preferred embodiment, the spring constant of the second spring is greater than that of the first spring.

[0010] In a preferred embodiment, a rubber pad is also installed on the steel base. The rubber pad has a cavity inside. A first through hole is opened on the opposite side of the two rubber pads. A second through hole is opened on the top and bottom of the rubber pad. Both the first through hole and the second through hole communicate with the cavity.

[0011] In a preferred embodiment, the rubber pad has an expansion joint on its annular side.

[0012] In a preferred embodiment, the two opposing sides of the rubber pads are further provided with ridges to increase friction.

[0013] In a preferred embodiment, a chain plate is hinged to the top of the sheet metal, and a chain is mounted on the chain plate. The chains on the two sheets metal are hooked together by a hook.

[0014] In this application, when the plate clamps the curb stone, the steel seat is compressed and pressed tightly against the surface of the curb stone. In this state, due to the continuous tension of the second spring, the steel seat can increase the clamping force on the curb stone. The second spring assists the plate in maintaining the stable clamping of the steel seat on the curb stone, ensuring the stability of the curb stone during the lifting process. It also effectively prevents shaking or falling off that may occur during lifting or transportation, greatly improving the safety and efficiency of construction.

[0015] In this application, when the steel base clamps the curbstone, the rubber pad is under negative pressure and the curbstone is adsorbed through the first through hole, further preventing the curbstone from falling during the lifting and transfer process. The combination of the tension component and the clamping component enhances the stability and safety of the clamping. In addition, the design of the rubber pad also has a certain buffering effect, which can reduce the hard collision between the steel base and the curbstone during the clamping process and protect the curbstone from damage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in this practical application;

[0017] Figure 2 This is a practical summary Figure 1 A magnified structural diagram at point A in the diagram;

[0018] Figure 3 This is a schematic diagram of the rubber pad structure used in this practical application;

[0019] Figure 4 This is a practical book Figure 3 A schematic diagram of the three-dimensional half-section structure;

[0020] Figure 5 This is a practical book Figure 4 A magnified structural diagram showing the details at point B;

[0021] Figure 6 This is a schematic diagram of the structure of this practical tool.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Board material; 2. Pegboard;

[0024] 3. Clamping assembly; 301. Steel base; 302. First hanging ear; 303. Rubber pad; 304. Second hanging ear; 305. Cavity; 306. First through hole; 307. Raised lines; 308. Second through hole;

[0025] 4. Tension assembly; 401. Fixing plate; 402. Fixing rod; 403. Second spring; 404. Slider; 405. First spring;

[0026] 5. Chain plate; 6. Chain. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] Please see the appendix Figures 1-2As shown, this utility model provides a municipal engineering curbstone lifting device, including two thin plates 1 and a hanging plate 2. The two plates 1 are stacked and pivot relative to each other around the rotation axis. The bottom of the plates 1 extends downward to form a clamp for constraining the curbstone. A tension component 4 is installed at the bottom of the inner corner of the plates 1 and the clamp. The hanging plate 2 is fixed at the position of the clamp at the bottom end of the plates 1. A clamping component 3 is hinged on the hanging plate 2.

[0032] Specifically, a chain plate 5 is hinged to the top of the board 1, and a chain 6 is mounted on the chain plate 5. The chains 6 on the two boards 1 are hooked together by a hook. Under normal conditions, when the hook lifts the chain 6, the two boards 1 are relatively close to each other with the axis of rotation as the axis. When a edging stone is placed between the two boards 1, the hook lifts the chain 6, the edging stone is clamped by the edging stone at the bottom of the board 1, and then the hook moves the edging stone to the designated position.

[0033] Please see the appendix Figure 2 As shown, the clamping assembly 3 includes a steel base 301, on which a first hanging ear 302 is mounted and hinged to the hanging plate 2, and a second hanging ear 304 located above the first hanging ear 302. A slider 404 is rotatably connected to the second hanging ear 304.

[0034] Specifically, the steel base 301 rotates freely around the hinge point of the hanging plate 2 and the first hanging ear 302.

[0035] Please see the appendix Figure 2 As shown, the tension assembly 4 includes two opposing fixed plates 401 and a fixed rod 402 connected to the two fixed plates 401. A second spring 403 is sleeved on the fixed rod 402, and a slider 404 is slidably mounted on the fixed rod 402. One end of the second spring 403 is fixed to the fixed plate 401 away from the clamping assembly 3, and the other end is fixed to the slider 404.

[0036] A first spring 405 is provided between the tension component 4 and the clamping component 3. The clamping component 3 is kept in an inward tilted state under normal conditions by the first spring 405. One end of the first spring 405 is fixed to the slider 404 of the fixing rod 402, and the other end is fixed to the slider 404 of the second hanging ear 304.

[0037] Furthermore, the elastic coefficient of the second spring 403 is greater than that of the first spring 405.

[0038] Based on the above structure, since the elastic coefficient of the second spring 403 is greater than that of the first spring 405, the second spring 403 has a greater pulling force than the first spring 405. The second spring 403 pulls the slider 404 away from the hanging plate 2, and the slider 404 on the fixed rod 402 is linked with the slider 404 on the steel seat 301 through the first spring 405. Therefore, when there is no object being clamped, the second spring 403 pulls the first spring 405 to make the steel seat 301 in an inward tilted state. When the plate 1 clamps the curb, the steel seat 301 is compressed and pressed tightly against the plane of the curb. In this state, due to the continuous pulling force of the second spring 403, the steel seat 301 can increase the clamping force on the curb. The second spring 403 assists the plate 1 in maintaining the stable clamping of the steel seat 301 on the curb, ensuring the stability of the curb during the lifting process, and effectively preventing shaking or falling off that may occur during lifting or transportation, greatly improving the safety and efficiency of construction.

[0039] Please see the appendix Figures 3-5 As shown, a rubber pad 303 is also installed on the steel base 301. The rubber pad 303 has a cavity 305 inside. A first through hole 306 is opened on the opposite side of the two rubber pads 303. A second through hole 308 is opened on the top and bottom of the rubber pad 303. Both the first through hole 306 and the second through hole 308 are connected to the cavity 305.

[0040] Specifically, when the steel seat 301 clamps the curbstone, due to the hollow design inside the rubber pad 303, the rubber pad 303 will first compress and expel air through the second through hole 308. At this time, the rubber pad 303 is in a negative pressure state and the curbstone is adsorbed through the first through hole 306, which further prevents the curbstone from falling during the lifting and transfer process. The combination of the tension component 4 and the clamping component 3 enhances the stability and safety of the clamping. In addition, the design of the rubber pad 303 also has a certain buffering effect, which can reduce the hard collision between the steel seat 301 and the curbstone during the clamping process and protect the curbstone from damage.

[0041] Please see the appendix Figures 4-5 As shown, the rubber pad 303 has an expansion joint on its circumferential side, which can compensate for the axial compression of the rubber pad 303 and increase the service life of the rubber pad 303 under repeated compression.

[0042] Please see the appendix Figures 4-5 As shown, the opposite side of the rubber pad 303 is also provided with raised textures 307 to increase friction.

[0043] The working principle of this utility is as follows:

[0044] Combining the above structures Figure 6As shown, under the traction of the top chain 6, the two stacked plates 1 are in a natural opposing state at the bottom, forming a V-shaped space to be clamped. The clamping assembly 3 is pulled by the first spring 405, the steel seat 301 remains inwardly tilted, and the ridges 307 of the rubber pad 303 face inward. The second spring 403 (high elasticity coefficient) pulls the first spring 405 (low elasticity coefficient) through the slider 404 of the fixed rod 402, forming a tension difference to ensure the initial inward posture of the steel seat 301. When the curbstone is inserted into the clamp, it pushes the two plates 1 to pivot around the rotation axis, and the bottom clamp is forced to open. At this time, the inner corner of the plate 1 is... When the tension component 4 of the part is compressed, the second spring 403 on the fixing rod 402 is stretched, the steel seat 301 is squeezed by the curb stone, and rotates around the hinge point of the first hanging ear 302 until it is parallel to the surface of the curb stone. The rubber pad 303 adheres to the curb stone. After the rubber pad 303 is compressed, the air in the cavity 305 is discharged from the second through hole 308, forming a negative pressure. It is adsorbed on the surface of the curb stone through the first through hole 306, realizing stability and safety during the clamping and transportation process. In addition, the design of the rubber pad 303 also has a certain buffering effect, which can reduce the hard collision between the steel seat 301 and the curb stone during the clamping process and protect the curb stone from damage.

[0045] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A lifting device for municipal engineering curb stones, characterized in that: include Two thin plates (1) are stacked and pivot relative to each other around a rotation axis. The bottom of the plates (1) extends downward to form a clamp for constraining the curb. A tension component (4) is installed at the bottom of the inner corner of the plates (1) and the clamp. Hanging plate (2), the hanging plate (2) is fixed at the position of the bottom clamp of the plate (1), and a clamping component (3) is hinged on the hanging plate (2); A first spring (405) is provided between the tension component (4) and the clamping component (3), and the clamping component (3) is kept in an inward tilted state under normal conditions by the first spring (405).

2. The municipal engineering curbstone lifting device according to claim 1, characterized in that: The tension assembly (4) includes two opposing fixed plates (401) and a fixed rod (402) connected to the two fixed plates (401). A second spring (403) is sleeved on the fixed rod (402), and a slider (404) is also slidably mounted on the fixed rod (402). One end of the second spring (403) is fixed to the fixed plate (401) away from the clamping assembly (3), and the other end is fixed to the slider (404).

3. The municipal engineering curbstone lifting device according to claim 2, characterized in that: The clamping assembly (3) includes a steel base (301), on which a first hanging ear (302) is mounted and hinged to the hanging plate (2), and a second hanging ear (304) located above the first hanging ear (302), and a slider (404) is also rotatably connected to the second hanging ear (304).

4. A municipal engineering curbstone lifting device according to claim 3, characterized in that: One end of the first spring (405) is fixed to the slider (404) of the fixed rod (402), and the other end is fixed to the slider (404) of the second lug (304).

5. A municipal engineering curbstone lifting device according to claim 2, characterized in that: The elastic coefficient of the second spring (403) is greater than that of the first spring (405).

6. A municipal engineering curbstone lifting device according to claim 3, characterized in that: A rubber pad (303) is also installed on the steel base (301). The rubber pad (303) has a cavity (305) inside. A first through hole (306) is opened on the opposite side of the two rubber pads (303). A second through hole (308) is opened at the top and bottom of the rubber pad (303). The first through hole (306) and the second through hole (308) are both connected to the cavity (305).

7. A municipal engineering curbstone lifting device according to claim 6, characterized in that: The rubber pad (303) has an expansion joint on its circumferential side.

8. A municipal engineering curbstone lifting device according to claim 6, characterized in that: The two rubber pads (303) are also provided with raised textures (307) on opposite sides to increase friction.

9. A municipal engineering curbstone lifting device according to claim 1, characterized in that: The top of the plate (1) is hinged with a chain plate (5), and a chain (6) is mounted on the chain plate (5). The chains (6) on the two plates (1) are hooked together by a hook.

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