A curbstone transport cart

Abstract

This invention belongs to the field of curbstone transportation technology, specifically a curbstone transportation trolley, including a transportation frame with wheels rotatably connected to both ends of the frame. A sleeve is fixedly installed on the top of the frame, and a sliding rod is slidably connected inside the sleeve. In this invention, the sliding rod rotates towards the curbstone body under the weight of a first and second clamping plate. The first and second clamping plates rotate along a connecting shaft, increasing the gap between them, allowing the curbstone body to enter between the two clamping plates and thus clamping it. As the end of the sliding rod away from the first connecting rope is pressed down, under the lever principle, the end of the sliding rod near the first connecting rope begins to rotate upwards, and under the weight of the curbstone body, the first and second clamping plates firmly clamp the curbstone body.

Description

Technical Field

[0001] This invention belongs to the field of curbstone transportation technology, specifically a curbstone transportation trolley. Background Technology

[0002] Curbstones are boundary stones commonly used at the edges of road surfaces. They are also called curb stones or edge stones. They serve as the boundary lines separating the roadway, sidewalk, green space, median strip, and other parts of the road, ensuring the safety of pedestrians and vehicles and maintaining the neatness of the road edges. During road construction, a large number of curbstones are piled up in one place waiting to be used. When the curbstones are actually used, workers continuously move them away.

[0003] However, the above-mentioned technologies often have the following drawbacks: ordinary curb stones have a certain volume and weight, and the traditional method of moving curb stones is mostly manual. When there are many curb stones, manual handling is inefficient and requires the cooperation of many people. During the handling process, when the workers are physically exhausted, there is a greater risk of them falling and causing injury to the workers.

[0004] Therefore, the present invention provides a curbstone transport trolley. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A curbstone transport trolley, comprising a transport frame, wheels rotatably connected to both ends of the transport frame, a sleeve fixedly installed on the top of the transport frame, a sliding rod slidably connected inside the sleeve, and several bolts threadedly connected to the top of the sleeve. A first connecting rope and a second connecting rope are fixedly installed at one end of the sliding rod. A first clamping plate is fixedly installed at one end of the first connecting rope, and a second clamping plate is fixedly connected to one end of the second connecting rope. The first and second clamping plates partially overlap. A connecting shaft is fixedly installed through one side of the first clamping plate, and the connecting shaft passes through the second clamping plate. The clamping plates are rotatably connected to each other. A gripping plate is fixedly installed at the bottom of both the first and second clamping plates. A rectangular frame is fixedly installed on the side of the two gripping plates that is far from each other. A slot is formed inside the rectangular frame that passes through the gripping plates. A rectangular block is slidably connected inside the rectangular frame. A first spring is fixedly installed inside the rectangular frame. The other end of the first spring is fixedly connected to the rectangular block. A rubber block is fixedly installed on the side of the rectangular block that is far from the first spring. Several curbstone bodies are placed on the ground. Generally, curbstones have a certain volume and weight. Traditional methods of transporting curbstones mostly involve manual handling. However, when there are many curbstones, manual handling becomes increasingly difficult. The current method of transporting materials is inefficient and requires multiple people to work together. During transport, there is a significant risk of falls and injuries when workers become exhausted. This invention addresses this by adjusting a sliding rod inside the sleeve to a suitable position. Then, a bolt is tightened to secure the sliding rod. The trolley is then pushed, positioning it directly above the curbstone body along with the first and second connecting ropes, first and second clamping plates. Releasing the trolley allows the sliding rod to rotate towards the curbstone body under the weight of the first and second clamping plates. The first and second clamping plates rotate via a connecting shaft, thereby increasing the... The gap between the two clamping plates allows the curbstone body to enter between them. At this time, the rectangular block inside the rectangular frame adheres to the surface of the curbstone body under the action of the first spring, and the rubber block increases the friction, thus clamping the curbstone body. As the sliding rod moves away from the first connecting rope downward, the end of the sliding rod near the first connecting rope begins to rotate upward under the action of the lever principle. Under the weight of the curbstone body, the first and second clamping plates firmly clamp the curbstone body, thus facilitating multiple and efficient transportation of the curbstone body. This eliminates the need for multiple workers to cooperate in transportation, greatly reducing the risk of transporting the curbstone body.

[0007] Preferably, an arc-shaped guide block is fixedly installed at the bottom of the rectangular block, and a guide wheel is rotatably connected to the arc-shaped surface of the guide block. During operation, when gripping the curbstone body, the arc-shaped guide block at the bottom of the rectangular block will first contact the curbstone body, and the arc-shaped guide block will press and slide the rectangular block into the rectangular frame, thereby increasing the gap between the two rectangular blocks and the two gripping plates. At the same time, the guide wheel on the guide block can reduce friction and facilitate the entry of the curbstone body, thus making it easier for workers to grip the curbstone body with the gripping plates.

[0008] Preferably, the rectangular block and the rectangular frame are in a sealed sliding connection, and the end of the rectangular block away from the first spring has a through-hole. During operation, by designing the rectangular block and the rectangular frame to be in a sealed sliding connection, when the rectangular block slides into the rectangular frame, it will compress the gas inside the rectangular frame. The compressed gas inside the rectangular frame will then be sprayed through the vent towards the curbstone body, thereby achieving the effect of blowing up and cleaning the surface of the curbstone body, effectively reducing the occurrence of fine sand scratching the surface of the curbstone body.

[0009] Preferably, the rubber block has a hollow structure, with a hollow tube fixedly installed inside. A slider is slidably connected inside the hollow tube, and an elastic rope is fixedly installed at the bottom of the slider. The other end of the elastic rope is fixedly connected to the inner wall of the rubber block, and a baffle is fixedly installed at the end of the slider away from the elastic rope. During operation, by designing the rubber block to be hollow, when the rubber block is compressed, the gas inside will enter the hollow tube and push the slider, causing the slider to slide upward with the baffle, and then contact the surface of the curbstone body, thereby increasing the friction and playing a role in assisting in fixing the curbstone body. At the same time, the baffle is also positioned in front of the vent, effectively protecting the vent and reducing the entry of dust and impurities.

[0010] Preferably, an auxiliary plate is slidably connected to the bottom of the baffle, and a rubber protective pad is fixedly installed on one side of the auxiliary plate. During operation, by installing the auxiliary plate, when the baffle moves, the auxiliary plate can fill the gap between the bottom of the baffle and the rubber block. At the same time, the protective pad on the surface of the auxiliary plate can also contact the surface of the curbstone body, which can also help fix the curbstone body.

[0011] Preferably, an inclined sleeve is fixedly installed at the bottom of the sleeve, and an extension rod is slidably connected inside the sleeve. Several semi-circular positioning holes are formed on the surface of the extension rod. A hemispherical positioning block made of rubber is fixedly installed inside the sleeve. A limiting groove penetrating the extension rod is formed at the end away from the sleeve. A base plate is rotatably connected to the end of the connecting shaft near the transport frame. Two symmetrically arranged protrusions are fixedly installed on one side of the base plate. A limiting block is slidably connected to one side of each protrusion. Several fixing posts are formed on the side of the base plate away from the protrusions. Several fixing holes are formed on one side of the second clamping plate. During operation, after clamping the curbstone body, when transporting it using the transport frame, the extension rod inside the sliding sleeve is moved towards the base plate. At this time, the base plate is rotated to adjust its position. With the base plate in a horizontal position and the fixing posts on one side and the fixing holes on the second clamping plate aligned, the fixing posts are slid into the fixing holes of the second clamping plate, thus securing them. This allows the extension rod to slide between the two convex walls after sliding towards the base plate, with the limiting groove on the extension rod and the limiting block on the convex wall aligned. The limiting block slides into the limiting groove and engages, securing the extension rod. The extension rod also utilizes the positioning holes and the positioning blocks for quick and easy fixation. This prevents the extension tube from sliding and retracting into the sleeve due to shaking during the transport of the curbstone body, thus quickly securing the first clamping plate, the second clamping plate, and the curbstone body. This prevents shaking during transport, which could injure workers or the extension rod itself.

[0012] Preferably, the limiting block is made of rubber, and the cross-section of the limiting block and the limiting groove are both rectangular. During operation, the limiting block and the limiting groove are designed as rectangular grooves to allow them to cooperate with each other. The rectangular limiting block can provide a better fixing effect and effectively prevent rotation. When the rubber limiting block enters the limiting groove, it will be squeezed and deformed, thereby increasing the friction and achieving a better fixing effect.

[0013] Preferably, one end of the limiting block is rotatably connected to several scrapers via a torsion spring. The scrapers are arc-shaped, and their free ends are bent toward the limiting block. During operation, by installing the arc-shaped scrapers at one end of the limiting block, when the limiting block, carrying the scrapers, enters the limiting groove, the arc-shaped scrapers can be used to clean the limiting groove. The scrapers, which rotate via the torsion spring, can adapt to the size of the limiting groove and rotate according to its dimensions. The arc-shaped design of the limiting block allows it to slide smoothly into the limiting groove more easily.

[0014] Preferably, a second spring is fixedly installed inside the sleeve, and the other end of the second spring is fixedly connected to the extension rod. During operation, by installing the second spring, when the extension rod is not in use, the second spring can drive it to return to its original position. At this time, the semi-circular positioning block and positioning hole play a buffering role, so that the extension rod will not immediately return to its original position in the sleeve, thereby protecting the extension rod and the sleeve.

[0015] Preferably, a pull ring is fixedly installed on the surface of both the extension rod and the limiting block, and the pull ring is arc-shaped. During operation, by installing annular pull rings on the surface of the extension rod and the limiting block, when it is necessary to pull the extension rod and the limiting block, one only needs to put one's hand into the pull ring, and the limiting block and the extension rod can be moved by the pull ring, thereby efficiently achieving the function of moving the limiting block and the extension rod.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The curbstone transport trolley of the present invention, by adjusting the sliding rod inside the sleeve to a suitable position, then tightening the bolt to fix the sliding rod inside the sleeve, and then pushing the trolley so that the trolley, along with the first connecting rope, the second connecting rope, the first clamping plate, and the second clamping plate, is directly above the curbstone body, and then releasing the trolley, the sliding rod rotates towards the curbstone body under the weight of the first and second clamping plates. The first and second clamping plates rotate by the connecting shaft, thereby increasing the gap between them, allowing the curbstone body to enter between the two gripping plates. At this point, the rectangular block inside the rectangular frame adheres to the surface of the curbstone body under the action of the first spring, and the rubber block increases friction, thus clamping the curbstone body. As the sliding rod is pressed down away from the first connecting rope, the end of the sliding rod near the first connecting rope begins to rotate upward under the action of the lever principle. Under the weight of the curbstone body, the first and second clamping plates firmly clamp the curbstone body, thus facilitating multiple and efficient transportation of the curbstone body. This eliminates the need for multiple workers to cooperate in transportation, greatly reducing the risk of transporting the curbstone body.

[0018] 2. The curbstone transport trolley of the present invention uses an extension rod inside a sliding sleeve to move the extension rod towards the base plate. The base plate is then rotated to achieve a horizontal position, with the fixing post on one side of the base plate and the fixing hole on the second clamping plate aligned. The fixing post is then slid into the fixing hole of the second clamping plate, thus securing it. After sliding towards the base plate, the extension rod is positioned between two convex walls, with the limiting groove on the extension rod and the limiting block on the convex wall aligned. The sliding limiting block engages with the limiting groove, and the extension rod is secured using the positioning hole and the positioning block during sliding. This provides quick and easy fixation of the extension rod, preventing the extension tube from sliding and retracting into the sleeve due to shaking when the transport trolley is transporting the curbstone body. This quickly secures the first clamping plate, the second clamping plate, and the curbstone body, preventing them from shaking during transport and thus avoiding injury to workers or the trolley itself. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural diagram of the transport vehicle frame in this invention;

[0021] Figure 2 This is a schematic diagram of the structure at the second clamping plate in this invention;

[0022] Figure 3 In this invention Figure 2 A schematic diagram of the structure at point A;

[0023] Figure 4 This is a cross-sectional view of the rubber block in this invention;

[0024] Figure 5 This is a schematic diagram of the gripper plate in this invention;

[0025] Figure 6 In this invention Figure 5 A schematic diagram of the structure at point B;

[0026] Figure 7 This is a cross-sectional view of the sleeve in this invention;

[0027] Figure 8 This is a partial structural schematic diagram of the extension rod in Embodiment 2 of the present invention.

[0028] In the diagram: 1. Transport frame; 2. Wheel; 3. Sleeve; 4. Sliding rod; 5. Bolt; 6. First connecting rope; 7. First clamping plate; 8. Second connecting rope; 9. Second clamping plate; 10. Connecting shaft; 11. Grab plate; 12. Rectangular frame; 13. Rectangular block; 14. Rubber block; 15. First spring; 16. Curbstone body; 17. Guide block; 18. Guide wheel; 19. Air vent; 20. Sliding block; 21. Elastic rope; 22. Baffle; 23. Auxiliary plate; 24. Protective pad; 25. Sleeve; 26. Extension rod; 27. Limiting groove; 28. Base plate; 29. ​​Protruding wall; 30. Limiting block; 31. Fixing post; 32. Fixing hole; 33. Positioning block; 34. Positioning hole; 35. Second spring; 36. Scraper; 37. Pull ring. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] Example 1: As Figures 1 to 7 As shown in the embodiment of the present invention, a curbstone transport trolley includes a transport frame 1, with wheels 2 rotatably connected to both ends of the transport frame 1. A sleeve 3 is fixedly installed on the top of the transport frame 1, and a sliding rod 4 is slidably connected inside the sleeve 3. Several bolts 5 are threadedly connected to the top of the sleeve 3. A first connecting rope 6 and a second connecting rope 8 are fixedly installed on one end of the sliding rod 4. A first clamping plate 7 is fixedly installed on one end of the first connecting rope 6, and a second clamping plate 9 is fixedly connected to one end of the second connecting rope 8. The first clamping plate 7 and the second clamping plate 9 partially overlap. A connecting rod is fixedly installed through one side of the first clamping plate 7. Shaft 10, the connecting shaft 10 passes through the second clamping plate 9 and is rotatably connected to it, the bottom of the first clamping plate 7 and the second clamping plate 9 are both fixedly installed with gripping plates 11, the two gripping plates 11 are fixedly installed with a rectangular frame 12 on the side away from each other, the rectangular frame 12 has a groove through the gripping plates 11, the rectangular block 13 is slidably connected inside the rectangular frame 12, the first spring 15 is fixedly installed inside the rectangular frame 12, the other end of the first spring 15 is fixedly connected to the rectangular block 13, the side of the rectangular block 13 away from the first spring 15 is fixedly installed with a rubber block 14, and several curbstone bodies 16 are placed on the ground;

[0031] Curbstones typically have a certain volume and weight. Traditional methods of transporting curbstones often rely on manual labor. However, when there are many curbstones, manual transport becomes inefficient and requires multiple people. Furthermore, there is a significant risk of falls and injuries when workers become exhausted. This invention addresses this issue by adjusting the sliding rod 4 within the sleeve 3 to a suitable position. Then, the bolt 5 is tightened to secure the sliding rod 4 within the sleeve 3. The trolley is then pushed, positioning it directly above the curbstone body 16 along with the first connecting rope 6, second connecting rope 8, first clamping plate 7, and second clamping plate 9. Releasing the trolley causes the sliding rod 4 to rotate towards the curbstone body 16 under the weight of the first clamping plate 7 and second clamping plate 9. The first clamp 7 and the second clamp 9 rotate by the connecting shaft 10, thereby increasing the gap between them, so that the curbstone body 16 can enter between the two clamping plates 11. At this time, the rectangular block 13 in the rectangular frame 12 is in contact with the surface of the curbstone body 16 under the action of the first spring 15, and the rubber block 14 increases the friction, thereby clamping the curbstone body 16. At this time, as the sliding rod 4 is pressed down away from the end of the first connecting rope 6, under the action of the lever principle, the end of the sliding rod 4 close to the first connecting rope 6 begins to rotate upward, and under the weight of the curbstone body 16, the first clamp 7 and the second clamp 9 firmly clamp the curbstone body 16, thereby facilitating multiple and efficient transportation of the curbstone body 16, so that multiple workers are not required to cooperate in transportation, greatly reducing the risk of transporting the curbstone body 16.

[0032] An arc-shaped guide block 17 is fixedly installed at the bottom of the rectangular block 13, and a guide wheel 18 is rotatably connected to the arc-shaped surface of the guide block 17. During operation, when gripping the curbstone body 16, the arc-shaped guide block 17 at the bottom of the rectangular block 13 will first contact the curbstone body 16. The arc-shaped guide block 17 will press and slide the rectangular block 13 into the rectangular frame 12, thereby increasing the gap between the two rectangular blocks 13 and the two gripping plates 11. At the same time, the guide wheel 18 on the guide block 17 can reduce friction and facilitate the entry of the curbstone body 16, thus making it easier for workers to grip the curbstone body 16 using the gripping plates 11.

[0033] The rectangular block 13 and the rectangular frame 12 are connected in a sealed sliding manner. The rectangular block 13 has an air outlet 19 that passes through it at the end away from the first spring 15. During operation, by designing the rectangular block 13 and the rectangular frame 12 to be connected in a sealed sliding manner, when the rectangular block 13 slides into the rectangular frame 12, it will compress the gas inside the rectangular frame 12. The gas inside the rectangular frame 12 will be compressed and sprayed onto the curbstone body 16 through the air outlet 19, thereby achieving the effect of blowing up and cleaning the surface of the curbstone body 16, effectively reducing the occurrence of fine sand scratches on the surface of the curbstone body 16.

[0034] The rubber block 14 is a hollow structure, with a hollow tube fixedly installed inside. A slider 20 is slidably connected inside the hollow tube of the rubber block 14. An elastic rope 21 is fixedly installed at the bottom of the slider 20, and the other end of the elastic rope 21 is fixedly connected to the inner wall of the rubber block 14. A baffle 22 is fixedly installed at the end of the slider 20 away from the elastic rope 21. During operation, by designing the rubber block 14 to be hollow, when the rubber block 14 is squeezed, the gas inside will enter the hollow tube and push the slider 20, causing the slider 20 to slide upward with the baffle 22, and then contact the surface of the curbstone body 16, thereby increasing the friction and playing a role in assisting in fixing the curbstone body 16. At the same time, the baffle 22 is also located in front of the vent 19, effectively protecting the vent 19 and reducing the entry of dust and impurities.

[0035] An auxiliary plate 23 is slidably connected to the bottom of the baffle 22. A rubber protective pad 24 is fixedly installed on one side of the auxiliary plate 23. During operation, by installing the auxiliary plate 23, when the baffle 22 moves, the auxiliary plate 23 can fill the gap between the bottom of the baffle 22 and the rubber block 14. At the same time, the protective pad 24 on the surface of the auxiliary plate 23 can also contact the surface of the curbstone body 16, which can also help fix the curbstone body 16.

[0036] An inclined sleeve 25 is fixedly installed at the bottom of the sleeve 3. An extension rod 26 is slidably connected inside the sleeve 25. Several semi-circular positioning holes 34 are opened on the surface of the extension rod 26. A hemispherical positioning block 33 made of rubber is fixedly installed inside the sleeve 25. A limiting groove 27 that penetrates the extension rod 26 is opened at the end away from the sleeve 25. A base plate 28 is rotatably connected to the end of the connecting shaft 10 near the transport frame 1. Two symmetrically arranged protrusions 29 are fixedly installed on one side of the base plate 28. A limiting block 30 is slidably connected to one side of the protrusions 29. Several fixing posts 31 are opened on the side of the base plate 28 away from the protrusions 29. Several fixing holes 32 are opened on one side of the second clamping plate 9.

[0037] During operation, after clamping the curbstone body 16, when transporting it using the transport frame 1, the extension rod 26 inside the sliding sleeve 25 is moved towards the base plate 28. At this time, the base plate 28 is rotated so that it is in a horizontal state after rotation adjustment, and the fixing post 31 on one side of the base plate 28 and the fixing hole 32 on the second clamping plate 9 are in a straight line. Then, the fixing post 31 is slid into the fixing hole 32 of the second clamping plate 9, thereby fixing the fixing post 31. After sliding towards the base plate 28, the extension rod 26 can be positioned between the two protruding walls 29, and the extension rod 26... The limiting groove 27 and the limiting block 30 on the convex wall 29 are on the same straight line. The sliding limiting block 30 enters the limiting groove 27 and is locked in place. When the extension rod 26 slides, it will be fixed by the cooperation of the positioning hole 34 and the positioning block 33, thereby achieving the function of quickly assisting in fixing the extension rod 26. This ensures that when the transport vehicle frame 1 is transporting the curbstone body 16, the extension tube will not slide and retract into the sleeve 25 due to shaking. This achieves the function of quickly fixing the first clamping plate 7, the second clamping plate 9 and the curbstone body 16, preventing them from shaking during transportation, which could lead to the curbstone body 16 hitting the staff and causing injury to itself.

[0038] The limiting block 30 is made of rubber, and the cross-section of the limiting block 30 and the limiting groove 27 are both rectangular. During operation, the limiting block 30 and the limiting groove 27 are designed as rectangular grooves to allow them to cooperate with each other. The rectangular limiting block 30 can provide a better fixing effect and effectively prevent rotation. When the rubber limiting block 30 enters the limiting groove 27, it will be squeezed and deformed, thereby increasing the friction and achieving a better fixing effect.

[0039] One end of the limiting block 30 is rotatably connected to several scrapers 36 via a torsion spring. The scrapers 36 are arc-shaped, and their free ends bend toward the limiting block 30. During operation, by installing the arc-shaped scrapers 36 at one end of the limiting block 30, when the limiting block 30, along with the scrapers 36, enters the limiting groove 27, the arc-shaped scrapers 36 can be used to scrape and clean the limiting groove 27. The scrapers 36, which rotate via the torsion spring, can adapt to the current size of the limiting groove 27 and rotate according to the size of the limiting groove 27. The limiting block 30 is designed to be arc-shaped so that it can slide smoothly into the limiting groove 27.

[0040] A second spring 35 is fixedly installed inside the sleeve 25, and the other end of the second spring 35 is fixedly connected to the extension rod 26. During operation, by installing the second spring 35, when the extension rod 26 is not in use, the second spring 35 can drive it to return to its original position. At this time, the semi-circular positioning block 33 and positioning hole 34 play a buffering role, so that the extension rod 26 will not immediately return to its original position in the sleeve 25, thereby protecting the extension rod 26 and the sleeve 25.

[0041] Example 2: Figure 8 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a pull ring 37 is fixedly installed on the surface of both the extension rod 26 and the limiting block 30. The pull ring 37 is arc-shaped. During operation, by installing the annular pull ring 37 on the surface of the extension rod 26 and the limiting block 30, when it is necessary to pull the extension rod 26 and the limiting block 30, one only needs to put one's hand into the pull ring 37, and the limiting block 30 and the extension rod 26 can be moved by the pull ring 37, thereby efficiently achieving the function of moving the limiting block 30 and the extension rod 26.

[0042] Working principle: After adjusting the sliding rod 4 inside the sleeve 3 to a suitable position, the bolt 5 is tightened to fix the sliding rod 4 inside the sleeve 3. Then, the trolley is pushed so that the trolley, along with the first connecting rope 6, the second connecting rope 8, the first clamping plate 7, and the second clamping plate 9, is directly above the curbstone body 16. The trolley is released, and the sliding rod 4 rotates towards the curbstone body 16 under the weight of the first clamping plate 7 and the second clamping plate 9. The first clamping plate 7 and the second clamping plate 9 rotate against the connecting shaft 10, thereby increasing the gap between them, allowing the curbstone body 16 to enter between the two gripping plates 11. At this time, the rectangular frame 1... The rectangular block 13 inside 2 adheres to the surface of the curbstone body 16 under the force of the first spring 15, and the rubber block 14 increases the friction, thereby clamping the curbstone body 16. At this time, as the sliding rod 4 is pressed down away from the end of the first connecting rope 6, under the action of the lever principle, the end of the sliding rod 4 close to the first connecting rope 6 begins to rotate upward. Under the weight of the curbstone body 16, the first clamping plate 7 and the second clamping plate 9 firmly clamp the curbstone body 16, thereby facilitating multiple and efficient transportation of the curbstone body 16. This eliminates the need for multiple workers to cooperate in transportation, greatly reducing the risk of transporting the curbstone body 16.

[0043] When the curbstone body 16 is gripped, the arc-shaped guide block 17 at the bottom of the rectangular block 13 first contacts the curbstone body 16. The arc-shaped guide block 17 then pushes the rectangular block 13 into the rectangular frame 12, increasing the gap between the two rectangular blocks 13 and the two gripping plates 11. Simultaneously, the guide wheel 18 on the guide block 17 reduces friction, facilitating the entry of the curbstone body 16 and making it easier for workers to grip the curbstone body 16 using the gripping plates 11. By designing the rectangular block 13 and the rectangular frame 12 as a sealed sliding connection, when the rectangular block 13 slides into the rectangular frame 12, it compresses the gas inside the rectangular frame 12. This compressed gas is then sprayed through the air outlet 19 onto the curbstone body 16, effectively cleaning the surface of the curbstone body 16 and reducing the occurrence of fine sand scratches on its surface.

[0044] During operation, the rubber block 14 is designed to be hollow. When the rubber block 14 is compressed, the internal gas enters the hollow tube and pushes the slider 20, causing the slider 20 to slide upwards with the baffle 22, thus contacting the surface of the curbstone body 16. This increases the friction and helps to fix the curbstone body 16. At the same time, the baffle 22 is also positioned in front of the vent 19, effectively protecting the vent 19 and reducing the entry of dust and impurities. During operation, by installing the auxiliary plate 23, when the baffle 22 moves, the auxiliary plate 23 fills the gap between the bottom of the baffle 22 and the rubber block 14. At the same time, the protective pad 24 on the surface of the auxiliary plate 23 can also contact the surface of the curbstone body 16, which also helps to fix the curbstone body 16.

[0045] After the curbstone body 16 is clamped, during transportation using the transport frame 1, the extension rod 26 inside the sliding sleeve 25 is moved towards the base plate 28. At this time, the base plate 28 is rotated until it is horizontal, and the fixing post 31 on one side of the base plate 28 and the fixing hole 32 on the second clamping plate 9 are aligned. The fixing post 31 is then slid into the fixing hole 32 of the second clamping plate 9, thus fixing the fixing post 31. This allows the extension rod 26, after sliding towards the base plate 28, to be positioned between the two protruding walls 29, and the extension rod 26... The limiting blocks 30 on the limiting groove 27 and the convex wall 29 are on the same straight line. The sliding limiting block 30 enters the limiting groove 27 and is locked in place. When the extension rod 26 slides, it will be fixed by the cooperation of the positioning hole 34 and the positioning block 33, thereby achieving the function of quickly and assistedly fixing the extension rod 26. This ensures that when the transport vehicle frame 1 is transporting the curbstone body 16, the extension tube will not slide and retract into the sleeve 25 due to shaking. This achieves the function of quickly fixing the first clamping plate 7, the second clamping plate 9 and the curbstone body 16, preventing them from shaking during transportation, which could lead to the curbstone body 16 hitting the staff and causing injury to itself.

[0046] The rectangular design of the limiting block 30 and the limiting groove 27 allows for better interlocking. The rectangular limiting block 30 provides better fixation, effectively preventing rotation. The rubber limiting block 30 is compressed and deformed upon entering the limiting groove 27, increasing friction and further enhancing fixation. An arc-shaped scraper 36 is installed at one end of the limiting block 30. When the limiting block 30, carrying the scraper 36, enters the limiting groove 27, the arc-shaped scraper 36 cleans the groove. The scraper 36, rotating via a torsion spring, adapts to the size of the limiting groove 27. The arc shape of the limiting block 30 facilitates smoother sliding into the limiting groove 27. By installing the second spring 35, when the extension rod 26 is not in use, the second spring 35 can drive it to reset. At this time, the semi-circular positioning block 33 and positioning hole 34 play a buffering role, so that the extension rod 26 will not immediately reset into the sleeve 25, thereby protecting the extension rod 26 and the sleeve 25.

[0047] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0048] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A curbstone transport cart, characterized in that: The system includes a transport frame (1), with wheels (2) rotatably connected to both ends of the transport frame (1). A sleeve (3) is fixedly installed on the top of the transport frame (1). A sliding rod (4) is slidably connected inside the sleeve (3). Several bolts (5) are threadedly connected to the top of the sleeve (3). A first connecting rope (6) and a second connecting rope (8) are fixedly installed at one end of the sliding rod (4). A first clamping plate (7) is fixedly installed at one end of the first connecting rope (6). A second clamping plate (9) is fixedly connected at one end of the second connecting rope (8). The first clamping plate (7) and the second clamping plate (9) partially overlap. A connecting shaft (10) is fixedly installed through one side of the first clamping plate (7). (10) Passing through the second clamping plate (9) and rotatably connected to it, the bottom of the first clamping plate (7) and the second clamping plate (9) are both fixedly installed with gripping plates (11), and the two gripping plates (11) are fixedly installed with rectangular frames (12) on the side away from each other. The rectangular frame (12) has a groove that passes through the gripping plates (11) inside. The rectangular block (13) is slidably connected inside the rectangular frame (12). The first spring (15) is fixedly installed inside the rectangular frame (12). The other end of the first spring (15) is fixedly connected to the rectangular block (13). The side of the rectangular block (13) away from the first spring (15) is fixedly installed with a rubber block (14). Several curbstone bodies (16) are placed on the ground. An arc-shaped guide block (17) is fixedly installed at the bottom of the rectangular block (13), and a guide wheel (18) is rotatably connected to the arc surface of the guide block (17). The rectangular block (13) and the rectangular frame (12) are connected in a sealed sliding manner. The rectangular block (13) has an air outlet (19) that passes through it at the end away from the first spring (15). The rubber block (14) is a hollow structure. A hollow pipe is fixedly installed inside the rubber block (14). A slider (20) is slidably connected inside the hollow pipe of the rubber block (14). An elastic rope (21) is fixedly installed at the bottom of the slider (20). The other end of the elastic rope (21) is fixedly connected to the inner wall of the rubber block (14). A baffle (22) is fixedly installed at the end of the slider (20) away from the elastic rope (21). The bottom of the baffle (22) is slidably connected to an auxiliary plate (23), and a rubber protective pad (24) is fixedly installed on one side of the auxiliary plate (23). An inclined sleeve (25) is fixedly installed at the bottom of the sleeve (3). An extension rod (26) is slidably connected inside the sleeve (25). Several semi-circular positioning holes (34) are opened on the surface of the extension rod (26). A hemispherical positioning block (33) made of rubber is fixedly installed inside the sleeve (25). A limiting groove (27) penetrating itself is opened at the end of the extension rod (26) away from the sleeve (25). A base plate (28) is rotatably connected at the end of the connecting shaft (10) near the transport frame (1). Two symmetrically arranged protrusions (29) are fixedly installed on one side of the base plate (28). A limiting block (30) is slidably connected on one side of the protrusions (29). Several fixing posts (31) are opened on the side of the base plate (28) away from the protrusions (29). Several fixing holes (32) are opened on one side of the second clamping plate (9).

2. The curbstone transport cart according to claim 1, characterized in that: The limiting block (30) is made of rubber, and the cross-section of the limiting block (30) is rectangular. The cross-section of the limiting groove (27) is rectangular.

3. The curbstone transport cart according to claim 1, characterized in that: One end of the limiting block (30) is rotatably connected to several scrapers (36) via a torsion spring. The scrapers (36) are arc-shaped, and the free end of the scrapers (36) bends toward the limiting block (30).

4. The curbstone transport trolley according to claim 1, characterized in that: A second spring (35) is fixedly installed inside the sleeve (25), and the other end of the second spring (35) is fixedly connected to the extension rod (26).

5. The curbstone transport cart according to claim 1, characterized in that: Pull rings (37) are fixedly installed on the surfaces of the extension rod (26) and the limiting block (30), and the pull rings (37) are arc-shaped.

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