Concrete layer breaking device for narrow space

Abstract

This utility model discloses a concrete layer-breaking device for narrow spaces, including a breaking cylinder with multiple hydraulic cylinders installed inside. The telescopic end of each hydraulic cylinder extends from the cylinder wall. The bottom of the breaking cylinder has an oil inlet and an oil return port. Each hydraulic cylinder has an oil inlet and an oil return port. The oil inlet communicates with the oil inlet port on the hydraulic cylinder, and the oil return port communicates with the oil return port on the hydraulic cylinder. The telescopic end of the hydraulic cylinder has a pointed structure. This utility model is used for breaking concrete in narrow spaces. The pointed structure at the end of the telescopic end of the hydraulic cylinder pre-cracks and destroys the pre-cracked concrete structure, reducing noise and dust at the source, ensuring a clean working environment, reducing harm to workers, and lowering the labor intensity of workers.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal mine goaf retention equipment, specifically relating to a concrete layering cracking device for narrow spaces. Background Technology

[0002] Flexible formwork concrete roadway retention technology is an advanced roadway retention method in China, widely used in major coal enterprises across the country. The concrete is mainly transported via coal mine concrete mixer trucks. Prolonged use of these trucks leads to a large amount of concrete hardening inside the tank, occupying space and reducing transportation efficiency; or, due to malfunctions in the pouring equipment and failure to promptly remove the concrete from the truck, the concrete solidifies, affecting the truck's usability.

[0003] The narrow space inside the concrete mixer truck tank means that it can only be cleared manually, which is extremely inefficient, labor-intensive, and generates a lot of noise and dust, affecting the physical and mental health of the workers. Utility Model Content

[0004] The purpose of this invention is to provide a concrete layer-breaking device for narrow spaces, which solves the problems of extremely low efficiency, high labor intensity, and significant noise and dust, which affect the physical and mental health of workers when manually removing concrete from the tank of a concrete mixer truck.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a narrow space concrete layered cracking device, including a cracking cylinder, in which multiple hydraulic cylinders are installed. The telescopic end of each hydraulic cylinder can extend from the cylinder wall. The bottom of the cracking cylinder is provided with an oil inlet and an oil return port. The hydraulic cylinder is provided with an oil cylinder inlet and an oil cylinder return port. The oil inlet is connected to the oil cylinder inlet port on the hydraulic cylinder, and the oil return port is connected to the oil cylinder return port on the hydraulic cylinder. The telescopic end of the hydraulic cylinder has a pointed structure.

[0006] Multiple hydraulic cylinders are arranged at equal intervals and on the same center line.

[0007] The oil inlet is connected to the oil cylinder inlet on each hydraulic cylinder via an oil inlet hydraulic pipe.

[0008] The return oil port is connected to the cylinder return oil port on each hydraulic cylinder via a return oil hydraulic pipe.

[0009] Both the inlet and return hydraulic hoses are rubber hoses.

[0010] The bottom of the hydraulic cylinder is welded to the inside of the rupture cylinder wall.

[0011] The rupture cylinder has multiple through holes on its wall, and the telescopic end of the hydraulic cylinder can extend out from the corresponding through hole.

[0012] Multiple hydraulic cylinders are connected in parallel to the oil inlet and return ports at the bottom of the rupture cylinder.

[0013] The beneficial effects of this utility model are: The narrow space concrete layer cracking device of this utility model is used to break up concrete in narrow spaces. The cracking device relies on the pointed end structure of the telescopic end of the hydraulic cylinder to pre-crack and destroy the pre-cracked concrete structure, thereby reducing noise and dust from the source, which helps to ensure a clean working environment, reduce harm to workers, and reduce the labor intensity of workers. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the concrete layering cracking device in a narrow space according to the present invention.

[0016] Figure 2 This is a cross-sectional view of the rupture cylinder in the narrow space concrete layered rupture device of this utility model;

[0017] Figure 3 This is a schematic diagram of the working state of the hydraulic cylinder in the narrow space concrete layering cracking device of this utility model.

[0018] In the diagram: 1. Rupture cylinder, 2. Oil inlet, 3. Oil return port, 4. Hydraulic cylinder, 5. Cylinder inlet, 6. Cylinder return port, 7. Inlet hydraulic pipe, 8. Return hydraulic pipe. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Example 1

[0022] like Figure 1 and Figure 2As shown, this utility model discloses a narrow-space concrete layered cracking device, comprising a cracking cylinder 1, inside which multiple hydraulic cylinders 4 are installed. The telescopic end of each hydraulic cylinder 4 can extend from the cylinder wall of the cracking cylinder 1. The bottom of the cracking cylinder 1 is provided with an oil inlet 2 and an oil return port 3. Each hydraulic cylinder 4 is provided with an oil inlet 5 and an oil return port 6. The oil inlet 2 communicates with the oil inlet 5 of the hydraulic cylinder 4, and the oil return port 3 communicates with the oil return port 6 of the hydraulic cylinder 4. The telescopic end of the hydraulic cylinder 4 has a pointed structure. The oil inlet 2 is connected to the oil inlet 5 of each hydraulic cylinder 4 via an oil inlet hydraulic pipe 7. The oil return port 3 is connected to the oil return port 6 of each hydraulic cylinder 4 via a oil return hydraulic pipe 8.

[0023] Combination Figure 3 The process of using the narrow space concrete layer-by-layer breaking device of this utility model in Example 1 to break up the concrete layer by layer in the narrow space of the tank is as follows:

[0024] Step 1, make a hole.

[0025] Use a concrete hole punch to drill holes perpendicular to the pre-cracked concrete surface. The diameter of the hole punch should match the diameter of the cracking cylinder 1, the hole depth should match the length of the cracking cylinder 1, and the hole spacing should be determined based on the diameter of the cracking cylinder and the concrete strength.

[0026] Step 2, connect.

[0027] After drilling is completed on the pre-cracked concrete surface, the hydraulic inlet pipe 7 and the hydraulic return pipe 8 of the hydraulic cylinder 4 inside the cracking cylinder 1 are connected to the hydraulic inlet 6 and the hydraulic return port 7, respectively, and then connected to the external power source (such as a hydraulic station).

[0028] Step 3, debugging.

[0029] After the pipeline connection is completed, the power source is turned on to supply liquid, and the equipment status is checked.

[0030] Step 4: Insertion and rupture.

[0031] With the equipment in good working order, the cracking cylinder 1 is placed into the pre-cracked concrete hole; then, fluid supply is started, with fluid entering through the oil inlet 6 of the hydraulic cylinder and the front end of the hydraulic cylinder 4 extending outward; as fluid continues to enter through the oil inlet 6 of the hydraulic cylinder, the pressure continuously increases, and the pointed structure at the front end of the cylinder gradually comes into contact with the pre-cracked concrete surface; at this point, fluid supply and pressurization are paused, and the equipment condition is checked; if the equipment is confirmed to be in good working order, fluid supply and pressurization are resumed; the pointed structure at the front end of the cylinder cracks the concrete; after cracking is completed, the reversing valve is switched, fluid is supplied from the oil return port 6 of the hydraulic cylinder, fluid returns from the oil inlet 5 of the hydraulic cylinder, and the piston rod at the front end of the hydraulic cylinder 4 is retracted, thus completing the pre-cracking of the first hole.

[0032] Step 5: Repeat the work in Step 4 until all openings are completed, which also destroys the pre-cracked concrete structure.

[0033] Example 2

[0034] like Figure 1 and Figure 2 As shown in Example 1, Example 2 of this utility model provides a narrow-space concrete layered cracking device. It also uses a cracking cylinder 1, inside which multiple hydraulic cylinders 4 are installed. The telescopic end of each hydraulic cylinder 4 can extend from the cylinder wall of the cracking cylinder 1. The bottom of the cracking cylinder 1 is provided with an oil inlet 2 and an oil return port 3. Each hydraulic cylinder 4 is provided with an oil inlet 5 and an oil return port 6. The oil inlet 2 communicates with the oil inlet 5 on the hydraulic cylinder 4, and the oil return port 3 communicates with the oil return port 6 on the hydraulic cylinder 4. The telescopic end of the hydraulic cylinder 4 has a pointed structure. The oil inlet 2 is connected to the oil inlet 5 on each hydraulic cylinder 4 via an oil inlet hydraulic pipe 7. The oil return port 3 is connected to the oil return port 6 on each hydraulic cylinder 4 via a return hydraulic pipe 8.

[0035] Unlike Embodiment 1, in Embodiment 2, a narrow-space concrete layered cracking device of this invention uses multiple hydraulic cylinders 4 arranged at equal intervals along the same center line. This allows for the cracking of different areas along a line, ensuring a better cracking effect.

[0036] Combination Figure 3 The process of using the narrow space concrete layer-by-layer breaking device of this utility model in Example 2 to break up the concrete layer by layer in the narrow space of the tank is as follows:

[0037] Step 1, make a hole.

[0038] Use a concrete hole punch to drill holes perpendicular to the pre-cracked concrete surface. The diameter of the hole punch should match the diameter of the cracking cylinder 1, the hole depth should match the length of the cracking cylinder 1, and the hole spacing should be determined based on the diameter of the cracking cylinder and the concrete strength.

[0039] Step 2, connect.

[0040] After drilling is completed on the pre-cracked concrete surface, the hydraulic inlet pipe 7 and the hydraulic return pipe 8 of the hydraulic cylinder 4 inside the cracking cylinder 1 are connected to the hydraulic inlet 6 and the hydraulic return port 7, respectively, and then connected to the external power source (such as a hydraulic station).

[0041] Step 3, debugging.

[0042] After the pipeline connection is completed, the power source is turned on to supply liquid, and the equipment status is checked.

[0043] Step 4: Insertion and rupture.

[0044] With the equipment in good working order, the cracking cylinder 1 is placed into the pre-cracked concrete hole; then, fluid supply is started, with fluid entering through the oil inlet 6 of the hydraulic cylinder and the front end of the hydraulic cylinder 4 extending outward; as fluid continues to enter through the oil inlet 6 of the hydraulic cylinder, the pressure continuously increases, and the pointed structure at the front end of the cylinder gradually comes into contact with the pre-cracked concrete surface; at this point, fluid supply and pressurization are paused, and the equipment condition is checked; if the equipment is confirmed to be in good working order, fluid supply and pressurization are resumed; the pointed structure at the front end of the cylinder cracks the concrete; after cracking is completed, the reversing valve is switched, fluid is supplied from the oil return port 6 of the hydraulic cylinder, fluid returns from the oil inlet 5 of the hydraulic cylinder, and the piston rod at the front end of the hydraulic cylinder 4 is retracted, thus completing the pre-cracking of the first hole.

[0045] Step 5: Repeat the work in Step 4 until all openings are completed, which also destroys the pre-cracked concrete structure.

[0046] Example 3

[0047] like Figure 1 and Figure 2 As shown in Example 1, Example 3 of this utility model provides a narrow-space concrete layered cracking device. It also uses a cracking cylinder 1, inside which multiple hydraulic cylinders 4 are installed. The telescopic end of each hydraulic cylinder 4 can extend from the cylinder wall of the cracking cylinder 1. The bottom of the cracking cylinder 1 is provided with an oil inlet 2 and an oil return port 3. Each hydraulic cylinder 4 is provided with an oil inlet 5 and an oil return port 6. The oil inlet 2 communicates with the oil inlet 5 on the hydraulic cylinder 4, and the oil return port 3 communicates with the oil return port 6 on the hydraulic cylinder 4. The telescopic end of the hydraulic cylinder 4 has a pointed structure. The oil inlet 2 is connected to the oil inlet 5 on each hydraulic cylinder 4 via an oil inlet hydraulic pipe 7. The oil return port 3 is connected to the oil return port 6 on each hydraulic cylinder 4 via a oil return hydraulic pipe 8.

[0048] Unlike Embodiment 1, in Embodiment 3, a narrow-space concrete layered cracking device of this invention uses multiple hydraulic cylinders 4 arranged at equal intervals along the same center line. This allows for the cracking of different areas along a line, ensuring a better cracking effect.

[0049] Unlike Example 1, in Example 3, the concrete layering cracking device for a narrow space of this utility model has both the inlet hydraulic pipe 7 and the return hydraulic pipe 8 as high-pressure hoses, which can ensure that they have good compressive strength.

[0050] Combination Figure 3 The process of using the narrow space concrete layer-by-layer breaking device of this utility model in Example 3 to break up the concrete layer by layer in the narrow space of the tank is as follows:

[0051] Step 1, make a hole.

[0052] Use a concrete hole punch to drill holes perpendicular to the pre-cracked concrete surface. The diameter of the hole punch should match the diameter of the cracking cylinder 1, the hole depth should match the length of the cracking cylinder 1, and the hole spacing should be determined based on the diameter of the cracking cylinder and the concrete strength.

[0053] Step 2, connect.

[0054] After drilling is completed on the pre-cracked concrete surface, the hydraulic inlet pipe 7 and the hydraulic return pipe 8 of the hydraulic cylinder 4 inside the cracking cylinder 1 are connected to the hydraulic inlet 6 and the hydraulic return port 7, respectively, and then connected to the external power source (such as a hydraulic station).

[0055] Step 3, debugging.

[0056] After the pipeline connection is completed, the power source is turned on to supply liquid, and the equipment status is checked.

[0057] Step 4: Insertion and rupture.

[0058] With the equipment in good working order, the cracking cylinder 1 is placed into the pre-cracked concrete hole; then, fluid supply is started, with fluid entering through the oil inlet 6 of the hydraulic cylinder and the front end of the hydraulic cylinder 4 extending outward; as fluid continues to enter through the oil inlet 6 of the hydraulic cylinder, the pressure continuously increases, and the pointed structure at the front end of the cylinder gradually comes into contact with the pre-cracked concrete surface; at this point, fluid supply and pressurization are paused, and the equipment condition is checked; if the equipment is confirmed to be in good working order, fluid supply and pressurization are resumed; the pointed structure at the front end of the cylinder cracks the concrete; after cracking is completed, the reversing valve is switched, fluid is supplied from the oil return port 6 of the hydraulic cylinder, fluid returns from the oil inlet 5 of the hydraulic cylinder, and the piston rod at the front end of the hydraulic cylinder 4 is retracted, thus completing the pre-cracking of the first hole.

[0059] Step 5: Repeat the work in Step 4 until all openings are completed, which also destroys the pre-cracked concrete structure.

[0060] Example 4

[0061] like Figure 1 and Figure 2As shown in Example 1, Example 4 of this utility model provides a narrow-space concrete layered cracking device. It also uses a cracking cylinder 1, inside which multiple hydraulic cylinders 4 are installed. The telescopic end of each hydraulic cylinder 4 can extend from the cylinder wall of the cracking cylinder 1. The bottom of the cracking cylinder 1 is provided with an oil inlet 2 and an oil return port 3. Each hydraulic cylinder 4 is provided with an oil inlet 5 and an oil return port 6. The oil inlet 2 communicates with the oil inlet 5 on the hydraulic cylinder 4, and the oil return port 3 communicates with the oil return port 6 on the hydraulic cylinder 4. The telescopic end of the hydraulic cylinder 4 has a pointed structure. The oil inlet 2 is connected to the oil inlet 5 on each hydraulic cylinder 4 via an oil inlet hydraulic pipe 7. The oil return port 3 is connected to the oil return port 6 on each hydraulic cylinder 4 via a oil return hydraulic pipe 8.

[0062] Unlike Embodiment 1, in Embodiment 4, a narrow-space concrete layered cracking device of this invention uses multiple hydraulic cylinders 4 arranged at equal intervals along the same center line. This allows for the cracking of different areas along a line, ensuring a better cracking effect.

[0063] Unlike Example 1, in Example 4, the concrete layering cracking device for a narrow space according to this utility model uses high-pressure hoses for both the inlet hydraulic pipe 7 and the return hydraulic pipe 8, which can ensure that they have good compressive strength.

[0064] Unlike Example 1, in Example 4, the bottom of the hydraulic cylinder 4 is welded to the inner wall of the rupture cylinder 1, which makes installation easier and improves stability after installation.

[0065] Combination Figure 3 The process of using the narrow space concrete layer-by-layer breaking device of this utility model in Example 4 to break up the concrete layer by layer in the narrow space of the tank is as follows:

[0066] Step 1, make a hole.

[0067] Use a concrete hole punch to drill holes perpendicular to the pre-cracked concrete surface. The diameter of the hole punch should match the diameter of the cracking cylinder 1, the hole depth should match the length of the cracking cylinder 1, and the hole spacing should be determined based on the diameter of the cracking cylinder and the concrete strength.

[0068] Step 2, connect.

[0069] After drilling is completed on the pre-cracked concrete surface, the hydraulic inlet pipe 7 and the hydraulic return pipe 8 of the hydraulic cylinder 4 inside the cracking cylinder 1 are connected to the hydraulic inlet 6 and the hydraulic return port 7, respectively, and then connected to the external power source (such as a hydraulic station).

[0070] Step 3, debugging.

[0071] After the pipeline connection is completed, the power source is turned on to supply liquid, and the equipment status is checked.

[0072] Step 4: Insertion and rupture.

[0073] With the equipment in good working order, the cracking cylinder 1 is placed into the pre-cracked concrete hole; then, fluid supply is started, with fluid entering through the oil inlet 6 of the hydraulic cylinder and the front end of the hydraulic cylinder 4 extending outward; as fluid continues to enter through the oil inlet 6 of the hydraulic cylinder, the pressure continuously increases, and the pointed structure at the front end of the cylinder gradually comes into contact with the pre-cracked concrete surface; at this point, fluid supply and pressurization are paused, and the equipment condition is checked; if the equipment is confirmed to be in good working order, fluid supply and pressurization are resumed; the pointed structure at the front end of the cylinder cracks the concrete; after cracking is completed, the reversing valve is switched, fluid is supplied from the oil return port 6 of the hydraulic cylinder, fluid returns from the oil inlet 5 of the hydraulic cylinder, and the piston rod at the front end of the hydraulic cylinder 4 is retracted, thus completing the pre-cracking of the first hole.

[0074] Step 5: Repeat the work in Step 4 until all openings are completed, which also destroys the pre-cracked concrete structure.

[0075] Example 5

[0076] like Figure 1 and Figure 2 As shown in Example 5, similar to Example 1, this invention provides a narrow-space concrete layered cracking device. It also uses a cracking cylinder 1, inside which multiple hydraulic cylinders 4 are installed. The telescopic end of each hydraulic cylinder 4 extends from the cylinder wall of the cracking cylinder 1. The bottom of the cracking cylinder 1 has an oil inlet 2 and an oil return port 3. Each hydraulic cylinder 4 has an oil inlet 5 and an oil return port 6. The oil inlet 2 communicates with the oil inlet 5 on the hydraulic cylinder 4, and the oil return port 3 communicates with the oil return port 6 on the hydraulic cylinder 4. The telescopic end of the hydraulic cylinder 4 has a pointed structure. The oil inlet 2 is connected to the oil inlet 5 on each hydraulic cylinder 4 via an oil inlet hydraulic pipe 7. The oil return port 3 is connected to the oil return port 6 on each hydraulic cylinder 4 via a oil return hydraulic pipe 8.

[0077] Unlike Embodiment 1, in Embodiment 5, a narrow-space concrete layered cracking device of this invention, multiple hydraulic cylinders 4 are arranged at equal intervals and on the same center line. This allows for the cracking of different areas along a line, ensuring a better cracking effect.

[0078] Unlike Example 1, in Example 5, the concrete layering cracking device for a narrow space according to this utility model, both the inlet hydraulic pipe 7 and the return hydraulic pipe 8 are high-pressure hoses, which can ensure that they have good compressive strength.

[0079] Unlike Example 1, in Example 5, a narrow space concrete layered cracking device of this utility model, the bottom of the hydraulic cylinder 4 is welded to the inner side of the cylinder wall of the cracking cylinder 1, which makes installation more convenient and the stability after installation is also better.

[0080] Unlike Embodiment 1, in Embodiment 5, a narrow space concrete layered cracking device of this utility model has multiple through holes on the wall of the cracking cylinder 1. The telescopic end of the hydraulic cylinder 4 can extend out from the corresponding through hole, which can play a certain guiding role for the telescopic end of the hydraulic cylinder 4 and ensure that it can extend in the correct direction.

[0081] Combination Figure 3 The process of using the narrow space concrete layer-by-layer breaking device of this utility model in Example 5 to break up the concrete layer by layer in the narrow space of the tank is as follows:

[0082] Step 1, make a hole.

[0083] Use a concrete hole punch to drill holes perpendicular to the pre-cracked concrete surface. The diameter of the hole punch should match the diameter of the cracking cylinder 1, the hole depth should match the length of the cracking cylinder 1, and the hole spacing should be determined based on the diameter of the cracking cylinder and the concrete strength.

[0084] Step 2, connect.

[0085] After drilling is completed on the pre-cracked concrete surface, the hydraulic inlet pipe 7 and the hydraulic return pipe 8 of the hydraulic cylinder 4 inside the cracking cylinder 1 are connected to the hydraulic inlet 6 and the hydraulic return port 7, respectively, and then connected to the external power source (such as a hydraulic station).

[0086] Step 3, debugging.

[0087] After the pipeline connection is completed, the power source is turned on to supply liquid, and the equipment status is checked.

[0088] Step 4: Insertion and rupture.

[0089] With the equipment in good working order, the cracking cylinder 1 is placed into the pre-cracked concrete hole; then, fluid supply is started, with fluid entering through the oil inlet 6 of the hydraulic cylinder and the front end of the hydraulic cylinder 4 extending outward; as fluid continues to enter through the oil inlet 6 of the hydraulic cylinder, the pressure continuously increases, and the pointed structure at the front end of the cylinder gradually comes into contact with the pre-cracked concrete surface; at this point, fluid supply and pressurization are paused, and the equipment condition is checked; if the equipment is confirmed to be in good working order, fluid supply and pressurization are resumed; the pointed structure at the front end of the cylinder cracks the concrete; after cracking is completed, the reversing valve is switched, fluid is supplied from the oil return port 6 of the hydraulic cylinder, fluid returns from the oil inlet 5 of the hydraulic cylinder, and the piston rod at the front end of the hydraulic cylinder 4 is retracted, thus completing the pre-cracking of the first hole.

[0090] Step 5: Repeat the work in Step 4 until all openings are completed, which also destroys the pre-cracked concrete structure.

[0091] Example 6

[0092] like Figure 1 and Figure 2 As shown in Example 5, similar to Example 1, this invention provides a narrow-space concrete layered cracking device. It also uses a cracking cylinder 1, inside which multiple hydraulic cylinders 4 are installed. The telescopic end of each hydraulic cylinder 4 extends from the cylinder wall of the cracking cylinder 1. The bottom of the cracking cylinder 1 has an oil inlet 2 and an oil return port 3. Each hydraulic cylinder 4 has an oil inlet 5 and an oil return port 6. The oil inlet 2 communicates with the oil inlet 5 on the hydraulic cylinder 4, and the oil return port 3 communicates with the oil return port 6 on the hydraulic cylinder 4. The telescopic end of the hydraulic cylinder 4 has a pointed structure. The oil inlet 2 is connected to the oil inlet 5 on each hydraulic cylinder 4 via an oil inlet hydraulic pipe 7. The oil return port 3 is connected to the oil return port 6 on each hydraulic cylinder 4 via a oil return hydraulic pipe 8.

[0093] Unlike Example 1, in Example 6, a narrow-space concrete layered cracking device of this invention uses multiple hydraulic cylinders 4 arranged at equal intervals along the same center line. This allows for the cracking of different areas along a line, ensuring a better cracking effect.

[0094] Unlike Example 1, in Example 6, the concrete layering cracking device for a narrow space according to this utility model, both the inlet hydraulic pipe 7 and the return hydraulic pipe 8 are high-pressure hoses, which can ensure that they have good compressive strength.

[0095] Unlike Example 1, in Example 6, a narrow space concrete layered cracking device of this utility model, the bottom of the hydraulic cylinder 4 is welded to the inner side of the cylinder wall of the cracking cylinder 1, which makes installation more convenient and the stability after installation is also better.

[0096] Unlike Embodiment 1, in Embodiment 6, a narrow space concrete layered cracking device of this utility model has multiple through holes on the wall of the cracking cylinder 1. The telescopic end of the hydraulic cylinder 4 can extend out from the corresponding through hole, which can play a certain guiding role for the telescopic end of the hydraulic cylinder 4 and ensure that it can extend in the correct direction.

[0097] Unlike Embodiment 1, in Embodiment 6, a narrow space concrete layered cracking device of this utility model, multiple hydraulic cylinders 4 are connected in parallel to the oil inlet 2 and oil return port 3 at the bottom of the cracking cylinder 1, so that multiple hydraulic cylinders 4 can be controlled to extend together to complete the cracking at one time.

[0098] Combination Figure 3The process of using the narrow space concrete layer-by-layer breaking device of this utility model in Example 6 to break up the concrete layer by layer in the narrow space of the tank is as follows:

[0099] Step 1, make a hole.

[0100] Use a concrete hole punch to drill holes perpendicular to the pre-cracked concrete surface. The diameter of the hole punch should match the diameter of the cracking cylinder 1, the hole depth should match the length of the cracking cylinder 1, and the hole spacing should be determined based on the diameter of the cracking cylinder and the concrete strength.

[0101] Step 2, connect.

[0102] After drilling is completed on the pre-cracked concrete surface, the hydraulic inlet pipe 7 and the hydraulic return pipe 8 of the hydraulic cylinder 4 inside the cracking cylinder 1 are connected to the hydraulic inlet 6 and the hydraulic return port 7, respectively, and then connected to the external power source (such as a hydraulic station).

[0103] Step 3, debugging.

[0104] After the pipeline connection is completed, the power source is turned on to supply liquid, and the equipment status is checked.

[0105] Step 4: Insertion and rupture.

[0106] With the equipment in good working order, the cracking cylinder 1 is placed into the pre-cracked concrete hole; then, fluid supply is started, with fluid entering through the oil inlet 6 of the hydraulic cylinder and the front end of the hydraulic cylinder 4 extending outward; as fluid continues to enter through the oil inlet 6 of the hydraulic cylinder, the pressure continuously increases, and the pointed structure at the front end of the cylinder gradually comes into contact with the pre-cracked concrete surface; at this point, fluid supply and pressurization are paused, and the equipment condition is checked; if the equipment is confirmed to be in good working order, fluid supply and pressurization are resumed; the pointed structure at the front end of the cylinder cracks the concrete; after cracking is completed, the reversing valve is switched, fluid is supplied from the oil return port 6 of the hydraulic cylinder, fluid returns from the oil inlet 5 of the hydraulic cylinder, and the piston rod at the front end of the hydraulic cylinder 4 is retracted, thus completing the pre-cracking of the first hole.

[0107] Step 5: Repeat the work in Step 4 until all openings are completed, which also destroys the pre-cracked concrete structure.

[0108] The foregoing description illustrates and describes several preferred embodiments of the utility model. However, as previously stated, it should be understood that the utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the utility model concept described herein through the foregoing teachings or the technology or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the utility model should be within the protection scope of the appended claims.

Claims

1. A confined space concrete delamination cracking device, characterized in that, The device includes a rupture cylinder (1), which is equipped with multiple hydraulic cylinders (4). The telescopic end of each hydraulic cylinder (4) can extend from the cylinder wall of the rupture cylinder (1). The bottom of the rupture cylinder (1) is provided with an oil inlet (2) and an oil return port (3). The hydraulic cylinder (4) is provided with an oil cylinder inlet (5) and an oil cylinder return port (6). The oil inlet (2) is connected to the oil cylinder inlet (5) on the hydraulic cylinder (4), and the oil return port (3) is connected to the oil cylinder return port (6) on the hydraulic cylinder (4). The telescopic end of the hydraulic cylinder (4) has a pointed structure.

2. The confined space concrete layering cracking device according to claim 1, characterized in that, Multiple hydraulic cylinders (4) are arranged at equal intervals and on the same center line.

3. The narrow-space concrete layered cracking device according to claim 2, characterized in that, The oil inlet (2) is connected to the oil cylinder inlet (5) on each hydraulic cylinder (4) via the oil inlet hydraulic pipe (7).

4. The confined space concrete delamination cracking device according to claim 3, characterized in that, The return port (3) is connected to the cylinder return port (6) on each hydraulic cylinder (4) via the return hydraulic pipe (8).

5. The confined space concrete delamination cracking device according to claim 4, characterized in that, Both the inlet hydraulic pipe (7) and the return hydraulic pipe (8) are rubber hoses.

6. The confined space concrete delamination cracking device according to claim 5, characterized in that, The bottom of the hydraulic cylinder (4) is welded to the inner wall of the rupture cylinder (1).

7. The confined space concrete delamination cracking device according to claim 6, characterized in that, The rupture cylinder (1) has multiple through holes on its wall, and the telescopic end of the hydraulic cylinder (4) can extend out from the corresponding through hole.

8. The confined space concrete delamination cracking device according to claim 7, characterized in that, Multiple hydraulic cylinders (4) are connected in parallel to the oil inlet (2) and oil return (3) at the bottom of the rupture cylinder (1).

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