Disassembly tool for sanitary union removal in narrow spaces

Abstract

The utility model discloses a dismounting frock for health level live joint dismantling in narrow space, frock bottom is equipped with the hooking groove limit cooperation of hooking wrench head and health level live joint outer wall, and the top side of hooking wrench head is equipped with telescopic sleeve along the axial direction, and the bottom of telescopic sleeve is equipped with adjustable limit component with health level live joint top side side limit cooperation formation, and the top of telescopic sleeve is movably embedded with stress handle, and stress handle is fixed through fixed bolt and telescopic sleeve, and the top of stress handle is detachably installed with force adding handle, makes force adding handle through telescopic mechanism to hooking wrench head in narrow space outside and exerts force, thereby more convenient to install or dismantle any one health level live joint in narrow space, improves the efficiency, and increases the applicability simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of union assembly and disassembly technology, and in particular to a disassembly tool for removing sanitary unions in confined spaces. Background Technology

[0002] The existing maintenance pipes are densely arranged, and the unions are connected by connecting pipes to form narrow areas. For example, the total length of the maintenance pipes in the current site is 360 meters, containing 36 unions, with each union spaced less than 100mm apart. In this case, the unions and connecting pipes together form a narrow space. Hook wrenches are often used for maintenance of the unions, which has the following disadvantages: 1. Because the hook wrench is too long, it is impossible to disassemble or assemble the middle part of the union. The union can only be disassembled and assembled from top to bottom. Each disassembly and assembly takes more than 4 hours. If one union is not installed properly during the installation process, it needs to be reworked. 2. During the installation process, to avoid rework, a hammer is used to tap the hook wrench to ensure the union is tight. However, the union seal ring is easily damaged during the tapping process. Damage to the seal ring can only be discovered during use, and rework is also required. Utility Model Content

[0003] This utility model provides a disassembly tool for removing sanitary-grade unions in narrow spaces, aiming to solve the problem mentioned above where the existing dense layout leads to narrow areas, making it impossible to disassemble individual unions at any time, resulting in low maintenance efficiency and long maintenance time.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This dismantling tool is used for removing sanitary unions in confined spaces. The bottom of the tool is equipped with a hook-shaped wrench head that engages with the hook groove on the outer wall of the sanitary union. A telescopic sleeve is provided on one side of the top of the hook-shaped wrench head along the axial direction. An adjustable limiting component is provided on the bottom of the telescopic sleeve near the hook-shaped wrench head, which engages with the top side of the sanitary union. A force-bearing handle is movably embedded in the top of the telescopic sleeve. The force-bearing handle is fixed to the telescopic sleeve by a fixing bolt. An extension handle is detachably installed on the top of the force-bearing handle.

[0005] Preferably, the hook wrench head includes an arc-shaped portion surrounding the outer wall of the sanitary-grade union, with hook wrench teeth and hook grooves corresponding to each other at both ends of the arc-shaped portion, and the hook wrench teeth are embedded in the corresponding hook grooves to form a limit.

[0006] Preferably, the bottom of the telescopic sleeve has a strip-shaped opening arranged parallel to the axial direction of the hook-shaped wrench head on the side near the bottom of the telescopic sleeve, and the limiting component slides within the strip-shaped opening.

[0007] Preferably, the limiting component includes a limiting plate disposed outside the strip-shaped opening, with a sliding part protruding outward from the middle of one side of the limiting plate. The sliding part is embedded in the strip-shaped opening to form a sliding fit. A threaded slide rod parallel to the strip-shaped opening is provided inside the strip-shaped opening. The threaded slide rod passes through the sliding part to form a sliding fit. A positioning nut is threadedly engaged on the threaded slide rods located on both sides of the sliding part. The positioning nut clamps and fixes the sliding part.

[0008] Preferably, none of the limiting components enter the telescopic sleeve beyond the range of the strip opening.

[0009] Preferably, the telescopic sleeve is perpendicular to the hook-shaped wrench head and located in the middle of the telescopic sleeve, the opening of the telescopic sleeve is arranged parallel to the axial direction of the hook-shaped wrench head, and the force-bearing handle is movably embedded in the opening of the telescopic sleeve.

[0010] Preferably, the force-bearing handle includes an extension rod movably embedded in the opening of the telescopic sleeve. The extension rod and the telescopic sleeve form a limiting sliding fit. The extension rod is provided with a plurality of limiting holes at equal intervals along the sliding direction. The telescopic sleeve is provided with positioning holes. During the sliding process of the extension rod, the positioning holes coincide with the limiting holes one by one. When fixed, the positioning holes and the overlapping limiting holes are fixed by fixing bolts.

[0011] Preferably, the top of the extension rod of the force-bearing handle is provided with a force-bearing hole for mounting the force-applying handle.

[0012] Preferably, the force-applying handle is an L-shaped rod structure, with one right-angled side rod embedded in the force-receiving hole, and the other right-angled side rod forming a limiting linkage with the force-receiving hole during rotation.

[0013] Preferably, the force-applying handle is an L-shaped rod structure with a threaded hole for force application. One right-angled side of the rod has a threaded portion that passes through the force application hole and is threadedly engaged with it. Both sides of the threaded portion of the force application hole are threadedly engaged with fastening nuts. The force application hole is clamped and fixed between the fastening nuts. The other right-angled side of the rod is the hand-held portion.

[0014] The beneficial effects of this utility model are: 1. The force-applying handle is positioned outside the narrow space via the telescopic sleeve and the force-bearing handle, allowing external force to be applied to disassemble sanitary-grade unions within the narrow space. The disassembly process is not affected by other unions, and any single union can be disassembled at the same time. 2. This device can be used in any space that a hook wrench head can enter, thereby raising the lower limit of its use in narrow spaces and ensuring practicality and applicability; 3. The limiting component can prevent the hook wrench head from sinking to the bottom, affecting the smoothness of disassembly and assembly. At the same time, it can stabilize the hook wrench head when force is applied, improving the opening efficiency. 4. The limiting components can improve the applicability of the joints at different heights. The telescopic cooperation between the telescopic sleeve and the force-bearing handle can also adjust the height of the force-applying handle to adapt to narrow spaces of different heights, ensuring practicality and applicability. 5. The force-adding handle can be installed in various ways, and you can choose according to your actual needs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an enlarged schematic diagram of the limiting component of this utility model; Figure 3 This is an enlarged schematic diagram of the disassembly of the fixing bolt of this utility model; Figure 4 This is a schematic diagram illustrating one embodiment of the present invention being installed and used on a union joint; Figure 5 This is a schematic diagram illustrating another embodiment of the present invention installed and used on a union joint; Figure 6 This is a schematic diagram of another embodiment of the present invention installed and used on a union joint; Figure 7 This is a schematic diagram showing the disassembly of the force-applying handle according to another embodiment of the present invention; In the diagram: 1. Hook-shaped wrench head; 101. Arc-shaped part; 102. Hook-shaped wrench teeth; 2. Telescopic sleeve; 201. Strip opening; 202. Positioning hole; 3. Limiting assembly; 301. Limiting plate; 302. Sliding part; 303. Threaded slide rod; 304. Positioning nut; 4. Force-bearing handle; 401. Extension rod; 402. Limiting hole; 403. Force-bearing hole; 5. Fixing bolts; 6. Applying force handle; 601. Threaded part; 602. Handle; 603. Fastening nut; 7. Sanitary-grade live joint; 8. Hook groove. Detailed Implementation

[0016] The embodiments will be further described below with reference to the accompanying drawings.

[0017] like Figures 1-3As shown in the preferred embodiment 1, a disassembly fixture for removing sanitary unions in confined spaces has a hook-shaped wrench head 1 at its bottom that engages with a hook groove 8 on the outer wall of the sanitary union 7. A telescopic sleeve 2 is axially positioned on one side of the top of the hook-shaped wrench head 1. An adjustable limiting component 3 is located on the bottom of the telescopic sleeve 2 near the hook-shaped wrench head 1, engaging with the top edge of the sanitary union 7. A force-bearing handle 4 is movably embedded in the top of the telescopic sleeve 2, and is fixed to the telescopic sleeve 2 by a fixing bolt 5. A force-applying handle 6 is detachably mounted on the top of the force-bearing handle 4. The force-applying handle 6 drives the force-bearing handle 4, which in turn drives the telescopic sleeve 2, which in turn drives the hook-shaped wrench head 1, causing the sanitary union 7 to rotate. The extension structure formed by the telescopic sleeve 2 and the force-bearing handle 4 prevents the force-applying handle 6 from being on the same plane as the hook-shaped wrench head 1, allowing the force-bearing handle 4 to extend out of the confined space. This allows the sanitary union 7 to be removed by applying force outside the confined space.

[0018] The hook-shaped wrench head 1 includes an arc-shaped portion 101 surrounding the outer wall of the sanitary-grade union 7. Both ends of the arc-shaped portion 101 are provided with hook-shaped wrench teeth 102 corresponding to hook grooves 8. The hook-shaped wrench teeth 102 are embedded in the corresponding hook grooves 8 to form a limiting position. In use, the hook-shaped wrench teeth 102 engage with the hook grooves 8, ensuring that the hook-shaped wrench head 1 and the sanitary-grade union 7 are linked.

[0019] The entire device is made of carbon steel to ensure rigidity.

[0020] The bottom of the telescopic sleeve 2 is provided with a strip opening 201 arranged parallel to the axial direction of the hook wrench head 1 on the side near the hook wrench head 1, and the limiting component 3 slides within the strip opening 201.

[0021] The limiting component 3 includes a limiting plate 301 disposed outside the strip opening 201. A sliding part 302 is formed by protruding outward from the middle of one side of the limiting plate 301. The sliding part 302 is embedded in the strip opening 201 to form a sliding fit. A threaded slide rod 303 parallel to the strip opening 201 is provided in the strip opening 201. The threaded slide rod 303 passes through the sliding part 302 to form a sliding fit. A positioning nut 304 is threadedly engaged on the threaded slide rod 303 on both sides of the sliding part 302. The positioning nut 304 clamps and fixes the sliding part 302. Before use, set the height of the limiting plate 301 according to the height of the sanitary union 7 and the desired position of the hook wrench head 1. By moving the positioning nut 304, the sliding part 302 can be slid to the designated position and fixed. When in use, lower the hook wrench head 1 along the hook groove 8 until the limiting plate 301 is in close contact with the sanitary union 7. At this time, while maintaining pressure, rotating the force-applying handle 6 can complete the disassembly or installation of the sanitary union 7, ensuring that the hook wrench head 1 will not sink to the bottom and affect disassembly and installation, and at the same time making it easier to apply force.

[0022] None of the limiting components 3 extend beyond the strip opening 201 into the telescopic sleeve 2. This prevents the limiting components 3 from interfering with the force-bearing handle 4.

[0023] The telescopic sleeve 2 is perpendicular to the hook-shaped wrench head 1 and located in the middle of the telescopic sleeve 2. The opening of the telescopic sleeve 2 is arranged parallel to the axial direction of the hook-shaped wrench head 1, and the force-bearing handle 4 is movably embedded in the opening of the telescopic sleeve 2. This ensures that the telescopic component is within the projection of the hook-shaped wrench head 1 onto the plane where the sanitary union 7 is located, allowing it to be used even in narrow spaces. As long as there is enough space to insert the hook-shaped wrench head 1, this device can be used.

[0024] The force-bearing handle 4 includes an extension rod 401 movably embedded in the opening of the telescopic sleeve 2. The extension rod 401 and the telescopic sleeve 2 form a limiting sliding fit. The extension rod 401 has several limiting holes 402 evenly spaced along the sliding direction. The telescopic sleeve 2 has positioning holes 202. During the sliding process of the extension rod 401, the positioning holes 202 coincide with the limiting holes 402 one by one. When fixed, the positioning holes 202 and the overlapping limiting holes 402 are fixed by fixing bolts 5. During fixing, the screw of the fixing bolt 5 passes through both the positioning hole 202 and the overlapping limiting hole 402, and then both ends are tightened by nuts, completing the limiting of the extension rod 401. The height of the extension rod 401 can be set according to the height of the pipe on the sanitary union 7, thereby adjusting the length of the telescopic rod mechanism using the telescopic sleeve 2 and improving its applicability.

[0025] The extension rod 401 of the force-bearing handle 4 has a force-bearing hole 403 at its top for mounting the force-applying handle 6. This ensures that the force-applying handle 6 and the sanitary-grade union 7 are on different planes.

[0026] like Figure 4 and Figure 5 As shown in the preferred embodiment 2, the force-applying handle 6 has an L-shaped rod structure. One right-angled side is embedded in the force-receiving hole 403, and the other right-angled side forms a limiting linkage with the force-receiving hole 403 during rotation. The other right-angled side serves as the handhold 602, which can be horizontal or vertical, and its specific position can be adjusted according to the site conditions and ease of use. Except when external force is applied during rotation, the entire handle is mostly movable within the force-receiving hole 403 and can be removed at any time, making installation flexible and convenient.

[0027] like Figure 6 and Figure 7As shown in the preferred embodiment 3, the force-applying handle 6 has an L-shaped rod structure with a threaded hole 403. A threaded portion 601 is provided on one right-angled side of the handle, penetrating and threadedly engaging with the force-applying hole 403. Fastening nuts 603 are threadedly engaged on the threaded portions 601 on both sides of the force-applying hole 403, clamping and fixing the force-applying hole 403 between the fastening nuts 603. The other right-angled side serves as a handheld portion 602. Based on embodiment 2, the installation is more fixed and stable. In use, the threaded portion 601 is first rotated into the threaded engagement of the force-applying hole 403 until it penetrates the hole and the handheld portion 602 reaches a suitable position. Then, the rotation of the threaded portion 601 is stopped, and the fastening nuts 603 at both ends of the threaded portion 601 are tightened to lock it, thus locking the entire force-applying handle 6. At this point, the force-applying handle 6 is more secure and stable than in embodiment 2. The choice of which force-applying handle 6 to use depends on the specific circumstances.

[0028] The working principle of this utility model: Before use, set the height of the limiting plate 301 according to the height of the sanitary union 7 and the desired position of the hook wrench head 1. For example, the sliding part 302 can be slid to the designated position and fixed by moving the positioning nut 304. Set the height of the extension rod 401 according to the height of the pipe on the sanitary union 7. For example, the screw of the fixing bolt 5 can be used to pass through the positioning hole 202 and the overlapping limiting hole 402 at the same time, and then the two ends are tightened with nuts to complete the limiting of the extension rod 401. When in use, the hook wrench head 1 is lowered along the hook groove 8 until the limiting plate 301 is in close contact with the sanitary union 7. At this time, while maintaining pressure, rotating the force-applying handle 6 can complete the disassembly or installation of the sanitary union 7. This ensures that the hook wrench head 1 will not sink to the bottom and affect disassembly or installation, and at the same time makes it easier to apply force. It also allows the force-applying handle 6 to apply force in places other than narrow spaces, which facilitates disassembly or installation in narrow spaces and improves disassembly efficiency.

Claims

1. A disassembly tool for removing sanitary-grade unions in confined spaces, characterized in that, The bottom of the tool is provided with a hook wrench head (1) that is matched with the hook groove (8) on the outer wall of the sanitary union (7). A telescopic sleeve (2) is provided on the top side of the hook wrench head (1) along the axial direction. An adjustable limiting component (3) is provided on the bottom side of the telescopic sleeve (2) near the hook wrench head (1) to form a limiting match with the top side of the sanitary union (7). A force-bearing handle (4) is movably embedded on the top of the telescopic sleeve (2). The force-bearing handle (4) is fixed to the telescopic sleeve (2) by a fixing bolt (5). A force-applying handle (6) is detachably installed on the top of the force-bearing handle (4).

2. The disassembly fixture for removing sanitary-grade joints in confined spaces according to claim 1, characterized in that, The hook wrench head (1) includes an arc-shaped part (101) surrounding the outer wall of the sanitary union (7). Both ends of the arc-shaped part (101) are provided with hook wrench teeth (102) corresponding to hook grooves (8). The hook wrench teeth (102) are embedded in the corresponding hook grooves (8) to form a limit.

3. The disassembly fixture for removing sanitary-grade joints in confined spaces according to claim 1, characterized in that, The telescopic sleeve (2) has a strip opening (201) arranged parallel to the axial direction of the hook wrench head (1) on the bottom side near the hook wrench head (1), and the limiting component (3) slides in the strip opening (201).

4. The disassembly fixture for removing sanitary-grade joints in confined spaces according to claim 3, characterized in that, The limiting component (3) includes a limiting plate (301) located outside the strip opening (201). A sliding part (302) is formed by protruding outward from the middle of one side of the limiting plate (301). The sliding part (302) is embedded in the strip opening (201) to form a sliding fit. A threaded slide rod (303) parallel to the strip opening (201) is provided in the strip opening (201). The threaded slide rod (303) passes through the sliding part (302) to form a sliding fit. A positioning nut (304) is threaded on the threaded slide rod (303) on both sides of the sliding part (302). The positioning nut (304) clamps and fixes the sliding part (302).

5. The disassembly fixture for removing sanitary-grade joints in confined spaces according to claim 4, characterized in that, None of the limiting components (3) entered the telescopic sleeve (2) beyond the range of the strip opening (201).

6. The disassembly fixture for removing sanitary-grade joints in confined spaces according to claim 1, characterized in that, The telescopic sleeve (2) is perpendicular to the hook wrench head (1) and located in the middle of the telescopic sleeve (2). The opening of the telescopic sleeve (2) is arranged parallel to the axial direction of the hook wrench head (1), and the force-bearing handle (4) is movably embedded in the opening of the telescopic sleeve (2).

7. The disassembly fixture for removing sanitary-grade joints in confined spaces according to claim 6, characterized in that, The force-bearing handle (4) includes an extension rod (401) movably embedded in the opening of the telescopic sleeve (2). The extension rod (401) and the telescopic sleeve (2) form a limiting sliding fit. The extension rod (401) is provided with a plurality of limiting holes (402) at equal intervals along the sliding direction. The telescopic sleeve (2) is provided with a positioning hole (202). During the sliding process of the extension rod (401), the positioning hole (202) coincides with the limiting hole (402) one by one. When fixed, the positioning hole (202) and the overlapping limiting hole (402) are fixed by a fixing bolt (5).

8. The disassembly fixture for removing sanitary-grade joints in confined spaces according to claim 1, characterized in that, The top of the extension rod (401) of the force-bearing handle (4) is provided with a force-bearing hole (403) for the installation of the force-applying handle (6).

9. The disassembly fixture for removing sanitary-grade joints in confined spaces according to claim 8, characterized in that, The force-applying handle (6) is an L-shaped rod structure. One right-angled side rod is embedded in the force-receiving hole (403), and the other right-angled side rod forms a limiting linkage with the force-receiving hole (403) during rotation.

10. The disassembly fixture for removing sanitary-grade joints in confined spaces according to claim 8 or 9, characterized in that, The force-applying handle (6) is an L-shaped rod structure with a threaded hole (403). A threaded part (601) is provided on one right-angled side rod and passes through the force-applying hole (403) and is threadedly engaged with the force-applying hole (403). Fastening nuts (603) are threadedly engaged on the threaded parts (601) on both sides of the force-applying hole (403). The force-applying hole (403) is clamped and fixed between the fastening nuts (603). The other right-angled side rod is the hand-held part (602).

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