Heavy stone kerb hoisting tool

Abstract

The utility model relates to the technical field of stone kerb hoisting, in particular to a heavy stone kerb hoisting tool which comprises supporting steel, a lifting mechanism and a lifting device. The limiting mechanism comprises a moving seat fixedly connected to the bottom of the supporting steel, two guide rods are fixedly connected to one side of the moving seat, a sliding frame is slidably connected to the surfaces of the guide rods, and two sliding frames are slidably connected to the inner wall of the sliding frame; according to the device, a sliding frame is treaded by feet, then rubber blocks and abutting rods are pressed on the ground, the two sets of abutting rods can abut against the uneven ground through first springs, and compared with the situation that two walking wheels on an existing hoisting tool for hoisting heavy stone curbs are prone to slipping, the device has the advantages that the movable seat is limited, and therefore the situation that the two walking wheels are prone to slipping is avoided; and therefore, the stability of hoisting the heavy stone kerb by the hoisting mechanism is ensured, and the risk that the kerb falls off is avoided.

Description

Technical Field

[0001] This utility model relates to the field of stone curbstone hoisting technology, and in particular to a heavy-duty stone curbstone hoisting tool. Background Technology

[0002] Heavy-duty stone curbs are boundary stones made of natural stone and used for road edges. They are typically larger and heavier, and can withstand greater pressure and impact than ordinary curbs. Heavy-duty stone curbs are usually transported using cranes, forklifts, and other equipment to the installation location on the road.

[0003] A search revealed that the Chinese patent "A device for installing curb stones" (authorization announcement number CN219671017U) utilizes two wheels, a connecting rod, a supporting square steel, a fulcrum steel sleeve, a lever steel pipe, a steel pipe diagonal brace, and a lifting device to achieve the lifting and transportation of curb stones, demonstrating good operability.

[0004] In the aforementioned application, during the lever principle hoisting process, the two traveling wheels are prone to slippage, which can lead to instability in the hoisted curb stones.

[0005] Therefore, a heavy-duty stone curbstone hoisting tool is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a heavy-duty stone curbstone hoisting tool to solve the above-mentioned problems, thereby improving the problem that the two traveling wheels are prone to slippage during the lever principle hoisting process, which leads to instability in the hoisting of curbstones.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a heavy-duty stone curbstone hoisting tool, comprising: a support steel, the surface of which is provided with a hoisting mechanism; and a limiting mechanism, the limiting mechanism including a movable seat fixedly connected to the bottom of the support steel, two guide rods fixedly connected to one side of the movable seat, a sliding frame slidably connected to the surface of the guide rods, two sliding brackets slidably connected to the inner wall of the sliding frame, a rubber block fixedly connected to the bottom end of the sliding bracket, and annularly distributed abutment rods slidably connected to the inner wall of the rubber block, with a first spring fixedly connected to the opposite end of the abutment rod and the rubber block. By stepping on the sliding frame, the rubber block and the abutment rods are pressed down onto the ground. The first spring ensures that the two sets of abutment rods can contact the uneven ground, thereby limiting the movable seat and ensuring that the movable seat will not slip during hoisting, thus ensuring the stability of the hoisting mechanism in hoisting heavy stone curbstones and avoiding the risk of the curbstone falling.

[0008] Preferably, the inner wall of the sliding frame is slidably connected to a locking block, and the surface of the locking block is engaged with the inner wall of the guide rod.

[0009] Preferably, a second spring is fixedly connected to one end of the locking block, and the other end of the second spring is fixedly connected to the inner wall of the sliding frame. The elastic force of the second spring pushes the locking block to engage with the guide rod, thereby locking the sliding frame onto the guide rod. This avoids the limitation of the worker constantly stepping on the sliding frame, ensuring that the rubber pad and the abutment rod are stably in contact with the ground, thus ensuring the stable positioning of the moving seat.

[0010] Preferably, two right-angled blocks are fixedly connected to the top of the movable seat, and the upper surface of the slide contacts the surface of the right-angled blocks. As the inclined surface of the slide moves downward against the inclined surface of the right-angled blocks, the two sets of rubber blocks move away from each other, thereby allowing the rubber blocks to better contact the ground and ensuring stable positioning of the lifting tool.

[0011] Preferably, a third spring is fixedly connected to one end of the slide, and the other end of the third spring is fixedly connected to the inner wall of the slide frame. The third spring enables the slide and rubber block to automatically reset, ensuring that the slide and rubber block occupy less space when the moving seat is pushed.

[0012] Preferably, a pull block is fixedly connected to the top of the card block.

[0013] Preferably, a dust cover is fixedly connected to the opposite end of the abutment rod and the rubber block, and the surface of the first spring is located inside the dust cover. The dust cover protects the first spring, preventing impurities from adhering to the surface of the first spring and thus affecting the raising and lowering of the abutment rod, ensuring that the abutment rod can stably contact the ground.

[0014] The beneficial effects of this utility model are:

[0015] 1. By stepping on the sliding frame, the rubber block and the abutment are pressed down on the ground. Through the first spring, the two sets of abutments can contact the uneven ground. Compared with the two traveling wheels on the hoisting tools in the existing hoisting of heavy stone curbs, which are prone to slippage, this method limits the movement seat, thereby ensuring the stability of the hoisting mechanism when hoisting heavy stone curbs and avoiding the risk of the curb falling.

[0016] 2. The elastic force of the second spring pushes the locking block to engage with the guide rod, thereby locking the slide frame onto the guide rod. This avoids the limitation of the worker constantly stepping on the slide frame, ensuring that the rubber pad and the stop rod are stably in contact with the ground, thus ensuring the stable limiting of the moving seat. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the limiting mechanism structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the sliding frame of this utility model;

[0020] Figure 4 for Figure 3 A magnified view of A in the middle.

[0021] In the diagram: 1. Support steel; 2. Lifting mechanism; 3. Limiting mechanism; 31. Moving seat; 32. Third spring; 33. Sliding frame; 34. Sliding carriage; 35. Rubber block; 36. Pulling block; 37. Support rod; 38. First spring; 39. Dust cover; 310. Second spring; 311. Guide rod; 312. Locking block; 313. Right angle block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In practical implementation: such as Figure 1-4 As shown, a heavy-duty stone curb hoisting tool includes: a support steel 1, with a hoisting mechanism 2 on the surface of the support steel 1; and a limiting mechanism 3, which includes a movable seat 31 fixedly connected to the bottom of the support steel 1. Two guide rods 311 are fixedly connected to one side of the movable seat 31. A sliding frame 33 is slidably connected to the surface of the guide rods 311. Two slide frames 34 are slidably connected to the inner wall of the slide frame 33. A rubber block 35 is fixedly connected to the bottom end of the slide frame 34. A ring-shaped abutment rod 37 is slidably connected to the inner wall of the rubber block 35. A first spring 38 is fixedly connected to the opposite end of the abutment rod 37 and the rubber block 35.

[0024] The curbstone hoisting tool, with its compact structure, can be used flexibly in confined or complex construction environments thanks to the movable base 31, support steel 1, and hoisting mechanism 2.

[0025] The movable seat 31 includes a base and four universal brake wheels arranged in a rectangular pattern. The top of each universal brake wheel is fixedly connected to the bottom of the base. The universal brake wheels are made of high-load-bearing nylon components.

[0026] The lifting mechanism 2 includes a loop hinged to the upper end of the support steel 1. A crossbar is slidably connected to the inner wall of the loop, and a first hydraulic cylinder is fixedly connected to the inner wall of the crossbar. A hook is fixedly connected to the bottom end of the first hydraulic cylinder. A clamping frame is fitted onto the surface of the hook, and an installation block is slidably connected to the inner wall of the clamping frame. Several bolts are threadedly connected to the inner wall of the installation block, and a friction plate is provided on the surface of the installation block. The bolts are threadedly connected to the inner wall of the friction plate. Two second hydraulic cylinders are fixedly connected to the inner wall of the clamping frame, and one end of each second hydraulic cylinder is fixedly connected to the surface of the installation block. A battery and a hydraulic pump are mounted on the top of the moving base 31, and a CNC screen is mounted on the top of the battery. The friction plate is detachably mounted on the installation block, allowing for replacement of the appropriate friction plate according to the shape of different curb stones. This enables the lifting mechanism 2 to effectively adapt to stones of different shapes and improves lifting stability.

[0027] The friction plate is a rubber component, while the support steel 1, clamping frame, and loop are all high-strength alloy steel components. The crossbar is made of 7075 aluminum alloy, resulting in high hardness and light weight. The first hydraulic cylinder and the second hydraulic cylinder are connected to the hydraulic pump via hydraulic pipes. The connection methods of the hydraulic pipes to the first hydraulic cylinder, the hydraulic pump, and the second hydraulic cylinder are existing, well-known technical processes and will not be elaborated here. Specific connection methods can be selected according to actual needs. The battery is connected to the hydraulic pump and the CNC screen wiring.

[0028] When heavy stone curbstones need to be hoisted, the position of the crossbar in the loop is adjusted in advance and then the crossbar is pushed so that the moving seat 31 moves the support steel 1 and the hoisting mechanism 2 to the area where the heavy stone curbstones are stored. Workers step on the universal brake wheel one by one to lock the universal brake wheel themselves, and step on the sliding frame 33 to move the sliding frame 33, the sliding frame 33, the sliding frame 34, the rubber block 35 and the abutment 37 downward, so that the rubber block 35 and the abutment 37 press down on the road surface, thereby locking the moving seat 31.

[0029] Positioning the lifting frame above the heavy stone curb, the CNC screen controls the working trajectory of the hydraulic pump, the first hydraulic cylinder, and the second hydraulic cylinder. The hydraulic pump automatically activates, supplying hydraulic oil to the first hydraulic cylinder. One end of the first hydraulic cylinder moves downwards, causing the hook and clamping frame to move to a suitable position before automatically stopping. At this point, the hydraulic pump supplies hydraulic oil to the second hydraulic cylinder, which moves one end, pushing the mounting block and friction plate to contact the curb surface, thus clamping the curb. Workers then use leverage to press down the crossbar, lifting the clamped curb. Releasing the lock on the moving seat 31 allows pushing the moving seat 31 or the crossbar to transport the lifted curb to a designated location, such as the curb's installation position. After placing the curb on the roadside, the clamp is released.

[0030] like Figure 3As shown, a locking block 312 is slidably connected to the inner wall of the sliding frame 33. The surface of the locking block 312 is locked to the inner wall of the guide rod 311. A second spring 310 is fixedly connected to the end of the locking block 312. The other end of the second spring 310 is fixedly connected to the inner wall of the sliding frame 33. A pull block 36 is fixedly connected to the top of the locking block 312.

[0031] The elastic force of the second spring 310 pushes the locking block 312 to move and engage with the guide rod 311, thereby locking the slide frame 33 onto the surface of the guide rod 311.

[0032] like Figure 2 As shown, two right-angled blocks 313 are fixedly connected to the top of the movable seat 31. The upper surface of the slide 34 contacts the surface of the right-angled blocks 313. A third spring 32 is fixedly connected to the end of the slide 34. The other end of the third spring 32 is fixedly connected to the inner wall of the slide frame 33.

[0033] The sliding frame 33 moves down, causing the carriage 34 to move down, so that the inclined surface of the carriage 34 moves down on the inclined surface of the right-angle block 313. The inclined surface of the right-angle block 313 will push the carriage 34 to move within the sliding frame 33, thereby causing the two rubber blocks 35 to move away from each other.

[0034] like Figure 4 As shown, a dust cover 39 is fixedly connected to the opposite end of the abutment 37 and the rubber block 35, and the surface of the first spring 38 is located inside the dust cover 39. The dust cover 39 is a rubber component.

[0035] In use, after adjusting the position of the crossbar in the loop beforehand, the crossbar is pushed so that the moving seat 31 moves the support steel 1 and the hoisting mechanism 2 to the area where heavy stone curb stones are stored. Workers step on the universal brake wheel one by one to lock the universal brake wheel, pull the pull block 36 to move the locking block 312 away from the guide rod 311, and step on the sliding frame 33 to move the sliding frame 34, rubber block 35 and abutment rod 37 downward. The inclined surface of the sliding frame 34 moves down on the inclined surface of the right angle block 313. The inclined surface of the right angle block 313 pushes the sliding frame 34 to move within the sliding frame 33, thereby moving the two rubber blocks 35 away from each other and pressing them down on the road surface. At this time, the elastic force of the second spring 310 pushes the locking block 312 to move and engage with the guide rod 311, so that the rubber block 35 and abutment rod 37 are stably pressed down on the road surface, thereby locking the moving seat 31.

[0036] It should be noted that the components mentioned above, such as support steel 1, universal brake wheel, slip sleeve, crossbar, first hydraulic cylinder, hook, second hydraulic cylinder, clamp frame, bolts, battery, and hydraulic pump, are all components with relatively mature existing technology. Specific models can be selected according to actual needs. At the same time, the first hydraulic cylinder, second hydraulic cylinder, battery, and hydraulic pump can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heavy stone kerb lifting tool characterised in that, Include: Support steel (1), the surface of the support steel (1) is equipped with hoisting mechanism (2); Limiting mechanism (3), the limiting mechanism (3) includes the mobile seat (31) fixedly connected to the bottom of support steel (1), one side of the mobile seat (31) is fixedly connected with the guide rod (311) of two numbers, the surface of the guide rod (311) is slidably connected with the sliding frame (33), the inner wall of the sliding frame (33) is slidably connected with the sliding frame (34) of two numbers, the bottom end of the sliding frame (34) is fixedly connected with the rubber block (35), the inner wall of the rubber block (35) is slidably connected with the ring-shaped distribution of the abutment rod (37), the opposite end of the abutment rod (37) and rubber block (35) is fixedly connected with the first spring (38).

2. A heavy stone kerb lifting tool according to claim 1, characterised in that: The inner wall of the sliding frame (33) is slidably connected with the clamping block (312), and the surface of the clamping block (312) is clamped to the inner wall of the guide rod (311).

3. A heavy stone kerb lifting tool according to claim 2, characterised in that: The end of the clamping block (312) is fixedly connected with the second spring (310), and the other end of the second spring (310) is fixedly connected to the inner wall of the sliding frame (33).

4. A heavy stone kerb lifting tool according to claim 1, characterised in that: The top of the mobile seat (31) is fixedly connected with the right-angle block (313) of two numbers, and the surface of the sliding frame (34) is contacted to the surface of the right-angle block (313) on the upper end.

5. A heavy stone curb hoisting tool according to claim 1, characterized in that: The end of the sliding frame (34) is fixedly connected with the third spring (32), and the other end of the third spring (32) is fixedly connected to the inner wall of the sliding frame (33).

6. A heavy stone kerb lifting tool according to claim 2, characterised in that: The top of the clamping block (312) is fixedly connected with the pull block (36).

7. A heavy stone curb hoisting tool according to claim 1, characterized in that: The opposite end of the abutment rod (37) and rubber block (35) is fixedly connected with the dust cover (39), and the surface of the first spring (38) is located in the inside of the dust cover (39).

Images