Lever type grouting pipe pulling device

Abstract

The utility model relates to the technical field of grouting pipes, in particular to a lever type grouting pipe pulling device which comprises a base, a clamping mechanism is arranged on the front face of the top of the base, and a lever lifting mechanism is arranged on the top of the base. The clamping assembly is limited in the mode that the sliding plate is slidably connected between the limiting rods to pull the clamping assembly, deviation in the lifting process is avoided, a pulling cable can pull an inclined rod on the lower portion every time the lever lifting mechanism lifts the sliding plate, and due to the fact that the pulling cable is connected to the middle of the sliding plate, the clamping assembly can be pulled by the pulling cable. And the bottom of the inclined rod is limited by the limiting strip, so that when the inclined rod is subjected to pulling traction force, the vertical rod is forced to get close to the middle, and the clamping block is driven to automatically clamp the grouting pipe to pull up the grouting pipe.

Description

Technical Field

[0001] This utility model relates to the field of grouting pipe technology, specifically a lever-type grouting pipe pulling device. Background Technology

[0002] The grouting pipe assisted pull-out device is a pre-embedded grouting pipe system used for permanent sealing of construction joints, cold joints, pipe seepage cracks, and gaps between floors and walls in concrete. It is very suitable to install grouting pipes between new and old concrete joints. When water seeps into the joint, grout can be injected through the PVC port set on the surface to seal it. This method can seal the joint. The appropriate time for grouting can be selected after the concrete curing is completed. Leaking joints can also be treated in the same way. These methods create a permanent seal. After the grouting is completed, the grouting pipe needs to be pulled out.

[0003] Existing technology, such as publication number CN212947576U, provides a portable grouting pipe auxiliary pulling device, including a base. Support rods are rotatably connected to the four corners of the base, and rotating rods are rotatably connected between the support rods. A pulling rod is fixedly installed on the surface of the rotating rod, and a telescopic rod is provided on the side of the pulling rod closest to it. A clamping ring is fixedly installed on the side of the telescopic rod closest to it. This invention uses a base to install and fix the limiting block and support rods, while also providing support for the entire device, enhancing its stability. The support rods are used to install and fix the rotating rod, and the rotating rod drives the pulling rod to rotate, thereby moving the clamping ring. The pulling rod is used to install and fix the telescopic rod, improving its stability. This invention also solves the problem that most existing grouting pipe pulling devices are inconvenient to carry and cannot meet usage requirements.

[0004] In the current design, a clamping ring is aligned with the grouting pipe. The operator grips the handle and presses down, causing a rotating rod to rotate, which in turn rotates a pulling rod. The pulling rod then moves the clamping ring upwards to pull out the grouting pipe. However, in actual use, when the rotating rod pulls up the clamping ring, the angle between the clamping ring and the grouting pipe changes. At this point, the tilted clamping ring cannot fully adhere to the surface of the grouting pipe, leading to insufficient clamping force or concentrated force that damages the surface of the grouting pipe. Therefore, we propose a lever-type grouting pipe pulling device. Utility Model Content

[0005] The purpose of this utility model is to provide a lever-type grouting pipe pulling device. This lever-type grouting pipe pulling device solves the problem in the prior art that when the rotating rod rotates and drives the clamping ring to pull up, the angle between the clamping ring and the grouting pipe will change. At this time, the inclined clamping ring cannot fully fit the surface of the grouting pipe, which will lead to insufficient clamping force or concentrated force causing damage to the surface of the grouting pipe.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A lever-type grouting pipe pulling device includes a base, and a clamping mechanism is provided on the front of the top of the base for clamping the grouting pipe.

[0008] The base is equipped with a lever lifting mechanism at its top for pulling out the grouting pipe;

[0009] The clamping mechanism includes two limiting rods, which are fixedly connected to the two sides of the front of the base, and a sliding plate is slidably connected between the limiting rods. A clamping component is provided at the bottom of the sliding plate.

[0010] Preferably, the clamping assembly includes two traction cables, which are fixedly connected to the middle of the bottom of the slide plate. The bottom of each of the two traction cables is fixedly connected to a diagonal bar, and a vertical bar is fixedly connected to one end of the bottom of the diagonal bar. Clamping blocks are hinged to the corresponding sides of the two vertical bars.

[0011] Preferably, a limiting strip is provided between the bottoms of the two diagonal bars, and the limiting strip has multiple limiting holes, with pins for connecting the diagonal bars inserted into the inner walls of the limiting holes.

[0012] Preferably, the limiting strip and the two traction cables form a triangular structure, and the pin and the limiting hole are rotatably connected.

[0013] Preferably, the lever lifting mechanism includes a support rod, which is fixedly connected to the top of the base. A rocker arm is rotatably connected to the top of the support rod, and a slide rod is slidably connected to the inner wall of the rocker arm, with the slide rod hinged to the slide plate.

[0014] Preferably, the top of the base is fixedly connected to an elastic telescopic rod for rocker arm reset.

[0015] Preferably, a foot lever is fixedly connected to the end of the rocker arm away from the slide bar.

[0016] By employing the above technical solution, this utility model provides a lever-type grouting pipe pulling device. It possesses at least the following beneficial effects:

[0017] I. This utility model limits the clamping component by sliding the sliding plate traction clamping assembly between the limiting rods, preventing deviation during lifting. Each time the lever lifting mechanism lifts the sliding plate, the traction cable pulls the lower inclined rod. Since the traction cable is connected in the middle of the sliding plate, and the bottom of the inclined rod is limited by the limiting strip, when the inclined rod is pulled by the lifting traction force, it forces the vertical rod to move towards the middle, causing the clamping block to automatically clamp the grouting pipe and pull it up. When the grouting pipe is long and needs to be lifted multiple times, when the lever lifting mechanism drives the clamping component to descend, the inclined rod loses the traction cable. At this time, the center of the inclined rod is biased towards the outside of the grouting pipe. Under the influence of gravity, the inclined rod will cause the clamping block on the vertical rod to automatically release, so that the clamping component can move down as a whole and clamp again, achieving the purpose of quickly changing the clamping position. Furthermore, by adjusting the position of the inclined rod at the upper limit hole of the limiting strip, the clamping range of the clamping block can be adjusted to accommodate grouting pipes of different diameters.

[0018] Second, this utility model uses a downward-pressing rocker arm to facilitate the lifting of the slide plate using the lever principle. A foot bar is provided to facilitate the use of leg strength to press down the rocker arm. An elastic telescopic rod is provided below the rocker arm to reset the rocker arm after it has been pressed down. This allows for continuous lifting in conjunction with the clamping assembly when dealing with grouting pipes of greater depth. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the lever lifting mechanism in this utility model;

[0022] Figure 3 This is a schematic diagram of the clamping component in this utility model;

[0023] Figure 4 This is a schematic diagram of the diagonal and vertical bars in this utility model.

[0024] In the diagram: 1. Base; 2. Lever lifting mechanism; 21. Support rod; 22. Rocker arm; 23. Step bar; 24. Slide bar; 25. Elastic telescopic rod; 3. Clamping mechanism; 31. Limiting rod; 32. Slide plate; 33. Clamping assembly; 331. Traction cable; 332. Diagonal bar; 333. Vertical bar; 334. Clamping block; 335. Limiting strip; 336. Limiting hole; 337. Pin. Detailed Implementation

[0025] 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.

[0026] A lever-type grouting pipe pulling device, such as Figure 1 - Figure 4 As shown, the system includes a base 1. A clamping mechanism 3 is provided on the front top of the base 1 for clamping the grouting pipe. A lever lifting mechanism 2 is provided on the top of the base 1 for pulling out the grouting pipe. The clamping mechanism 3 includes two limiting rods 31, which are fixedly connected to the two sides of the front of the base 1. A sliding plate 32 is slidably connected between the two limiting rods 31. A clamping assembly 33 is provided at the bottom of the sliding plate 32. The clamping assembly 33 includes two traction cables 331, which are fixedly connected to the middle of the bottom of the sliding plate 32. The bottom of the traction cable 331 is fixedly connected to the diagonal rod 332, and the bottom end of the diagonal rod 332 is fixedly connected to the vertical rod 333. The corresponding side of the two vertical rods 333 is hinged to the clamping block 334. A limit strip 335 is provided between the bottom of the two diagonal rods 332. The limit strip 335 has multiple limit holes 336, and the inner wall of the limit hole 336 is inserted with a pin 337 for connecting the diagonal rod 332. The limit strip 335 and the two traction cables 331 form a triangular structure. The pin 337 and the limit hole 336 are rotatably connected.

[0027] In this embodiment, the clamping assembly 33 is limited by sliding the sliding plate 32 to the clamping assembly 33 between the limiting rods 31, preventing displacement during lifting. Each time the lever lifting mechanism 2 lifts the sliding plate 32, the traction cable 331 pulls the lower inclined rod 332. Since the traction cable 331 is connected to the middle of the sliding plate 32, and the bottom of the inclined rod 332 is limited by the limiting strip 335, when the inclined rod 332 is subjected to the lifting traction force, it forces the vertical rod 333 to move towards the center, causing the clamping block 334 to automatically clamp the grouting pipe and pull it out. When the grouting pipe is long and needs to be lifted and pulled multiple times, when the lever lifting mechanism 2 drives the clamping assembly 33 to descend, the inclined rod 332 loses the traction of the traction cable 331. At this time, the center of the inclined rod 332 is biased towards the outside of the grouting pipe. Under the influence of gravity, the inclined rod 332 will drive the clamping block 334 on the vertical rod 333 to automatically release, so as to facilitate the overall downward movement of the clamping assembly 33 for clamping again, so as to achieve the purpose of quickly changing the clamping position. Furthermore, by adjusting the position of the inclined rod 332 at the upper limit hole 336 of the limit strip 335, the clamping range of the clamping block 334 can be adjusted to accommodate grouting pipes of different diameters.

[0028] like Figure 2 As shown, preferably, the lever lifting mechanism 2 includes a support rod 21, which is fixedly connected to the top of the base 1. A rocker arm 22 is rotatably connected to the top of the support rod 21. A slide rod 24 is slidably connected to the inner wall of the rocker arm 22, and the slide rod 24 is hinged to the slide plate 32. The slide rod 24 with the slidable connection can compensate for the change in distance between the rocker arm 22 and the slide plate 32 when the rocker arm 22 rotates.

[0029] In this embodiment, a downward rocker arm 22 is provided to facilitate the lifting of the slide plate 32 using the lever principle.

[0030] like Figure 2 As shown, preferably, the top of the base 1 is fixedly connected to an elastic telescopic rod 25 for resetting the rocker arm 22, and the end of the rocker arm 22 away from the slide bar 24 is fixedly connected to a step bar 23.

[0031] In this embodiment, the step bar 23 is provided to facilitate the use of leg strength to press down the rocker arm 22, while the elastic telescopic rod 25 provided below the rocker arm 22 can reset the rocker arm 22 after it has been pressed down, so as to facilitate continuous lifting in conjunction with the clamping assembly 33 when dealing with grouting pipes with greater depth.

[0032] In use, the lever-type grouting pipe lifting device of this utility model utilizes the leg strength to press down the pry bar 22. The elastic telescopic rod 25 can reset the pressed pry bar 22. The clamping assembly 33 is limited by sliding the sliding plate 32 to the position between the limiting rods 31, preventing displacement during the lifting process. Each time the lever lifting mechanism 2 lifts the sliding plate 32, the traction cable 331 pulls the lower inclined rod 332. Since the traction cable 331 is connected in the middle of the sliding plate 32, and the bottom of the inclined rod 332 is limited by the limiting strip 335, when the inclined rod 332 is subjected to the lifting traction force, it will force the vertical rod 333 to... The lever lifting mechanism 2 moves towards the center, causing the clamping block 334 to automatically clamp the grouting pipe and pull it out. When the grouting pipe is long and needs to be lifted multiple times, the lever lifting mechanism 2 drives the clamping component 33 to descend. Since the inclined rod 332 loses the traction of the traction cable 331, the center of the inclined rod 332 is biased towards the outside of the grouting pipe. At this time, due to the influence of gravity, the inclined rod 332 will drive the clamping block 334 on the vertical rod 333 to automatically release, so as to facilitate the overall downward movement of the clamping component 33 for clamping again, so as to achieve the purpose of quickly changing the clamping position. Furthermore, by adjusting the position of the inclined rod 332 at the upper limit hole 336 of the limit strip 335, the clamping range of the clamping block 334 can be adjusted to accommodate grouting pipes of different diameters.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lever-type grouting pipe pulling device, comprising a base (1), characterized in that: The base (1) has a clamping mechanism (3) on the front of its top for clamping the grouting pipe; The base (1) is provided with a lever lifting mechanism (2) at the top for pulling up the grouting pipe; The clamping mechanism (3) includes two limiting rods (31), which are fixedly connected to the two sides of the front of the base (1). A sliding plate (32) is slidably connected between the limiting rods (31), and a clamping component (33) is provided at the bottom of the sliding plate (32).

2. The lever-type grouting pipe pulling device according to claim 1, characterized in that: The clamping assembly (33) includes two traction cables (331), which are fixedly connected to the middle of the bottom of the slide plate (32). The bottom of the two traction cables (331) is fixedly connected to a diagonal rod (332), and a vertical rod (333) is fixedly connected to one end of the bottom of the diagonal rod (332). A clamping block (334) is hinged to one side of the two vertical rods (333).

3. The lever-type grouting pipe pulling device according to claim 2, characterized in that: A limiting strip (335) is provided between the bottoms of the two diagonal bars (332). The limiting strip (335) has multiple limiting holes (336), and the inner wall of the limiting holes (336) is inserted with a pin (337) for connecting the diagonal bars (332).

4. The lever-type grouting pipe pulling device according to claim 3, characterized in that: The limiting strip (335) and the two traction cables (331) form a triangular structure, and the pin (337) and the limiting hole (336) are rotatably connected.

5. The lever-type grouting pipe pulling device according to claim 1, characterized in that: The lever lifting mechanism (2) includes a support rod (21), which is fixedly connected to the top of the base (1). A rocker arm (22) is rotatably connected to the top of the support rod (21). A slide rod (24) is slidably connected to the inner wall of the rocker arm (22), and the slide rod (24) is hinged to the slide plate (32).

6. The lever-type grouting pipe pulling device according to claim 5, characterized in that: The top of the base (1) is fixedly connected to an elastic telescopic rod (25) for resetting the rocker arm (22).

7. The lever-type grouting pipe pulling device according to claim 6, characterized in that: The end of the rocker arm (22) away from the slide bar (24) is fixedly connected to a foot bar (23).

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