A dismounting tool for a pull-rod-free rubber expansion joint

Abstract

The utility model relates to pipeline system auxiliary management tool, concretely relates to a kind of dismounting tool for pull rodless rubber expansion joint, including support screw rod, end plate, fastening screw rod, support nut, adjusting nut, the upper portion of end plate is provided with support hole, the lower end of end plate is provided with fastening hole, support screw rod is inserted in support hole, fastening screw rod is inserted in fastening hole, end plate includes symmetrically arranged left end plate, right end plate, support nut includes two inner nuts, two outer nuts, inner nut is arranged in the inside of left end plate and right end plate, outer nut is arranged in the outside of left end plate and right end plate, adjusting nut is arranged in the outside of left end plate and right end plate, pull rodless rubber expansion joint is clamped in the inside of the bottom of left end plate and right end plate. By the reasonable adjusting screw rod and support nut design, different sizes of pull rodless rubber expansion joint can be quickly adapted, and the dismounting and installation efficiency is significantly improved.

Description

Technical Field

[0001] This utility model relates to auxiliary management tools for pipeline systems, specifically to a tool for disassembling and assembling rodless rubber expansion joints. Background Technology

[0002] Rodless rubber expansion joints are widely used in pressure pipeline systems in industries such as petroleum, chemical, and power, primarily to compensate for pipeline displacement caused by factors such as thermal expansion and contraction. In practical applications, the disassembly and maintenance of expansion joints are often necessary due to equipment failure or routine maintenance. However, existing disassembly methods typically rely on tools such as pry bars and chain hoists, which often suffer from low efficiency, poor safety, and complex operation, especially in confined spaces or at heights, where the operational risks are significant, impacting disassembly efficiency and safety. Therefore, a more efficient and safer disassembly tool is needed to address the shortcomings of traditional methods. Summary of the Invention

[0003] To address the problems existing in the prior art, the purpose of this utility model is to provide a tool for disassembling and assembling rodless rubber expansion joints that can effectively assist operators in quickly disassembling the joints, reduce the difficulty of manual operation during the disassembly process, improve disassembly efficiency, and at the same time ensure the safety of the expansion joints and pipe flanges and other components, and avoid damage.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a tool for disassembling and assembling a rodless rubber expansion joint, comprising a support screw, an end plate, a fastening screw, a support nut, and an adjusting nut. The upper part of the end plate is provided with a support hole, and the lower end of the end plate is provided with a fastening hole. The support screw passes through the support hole, and the fastening screw passes through the fastening hole. The end plate includes a symmetrically arranged left end plate and a right end plate. The support nut includes two inner nuts and two outer nuts. The inner nuts are located on the inner sides of the left and right end plates, and the outer nuts are located on the outer sides of the left and right end plates. The adjusting nut is located on the outer sides of the left and right end plates. The rodless rubber expansion joint is snapped onto the bottom inner sides of the left and right end plates.

[0005] The aforementioned disassembly and assembly tool for a rodless rubber expansion joint has two fastening holes symmetrically arranged on the end plate below the support hole. The two fastening holes are elongated and the distance from the midpoint of the two fastening holes to the support hole is the same. Two fastening bolts are provided, and the two fastening bolts are respectively inserted into the two fastening holes.

[0006] The aforementioned disassembly and assembly tool for a rodless rubber expansion joint includes a left end plate comprising a front pressure strip and a rear pressure strip. The support holes are located at the same position at the top of the front and rear pressure strips. The front and rear pressure strips overlap and rotate around a support screw as an axis. The fastening holes are located at the far ends of the front and rear pressure strips. Two fastening screws are provided, and the two fastening screws are respectively inserted into the fastening holes at the far ends of the front and rear pressure strips.

[0007] The aforementioned disassembly and assembly tool for rodless rubber expansion joints has a stepped surface on the contact surface of the front and rear pressure strips, and the sum of the steps of the front and rear pressure strips is the same as the thickness of the front or rear pressure strip.

[0008] The aforementioned disassembly and assembly tool for rodless rubber expansion joints has a shearing surface on the stepped surface of the platform, and the shearing surfaces are inclined towards each other.

[0009] The aforementioned disassembly and assembly tool for a rodless rubber expansion joint has pressure holes on the front and rear pressure strips. A positioning bolt is installed in the pressure hole, and the positioning bolt passes through the pressure hole and is inserted into the mounting hole on the flange of the rodless rubber expansion joint.

[0010] The aforementioned disassembly and assembly tool for rodless rubber expansion joints has pressure holes that are elongated in the length direction of the front and rear pressure strips.

[0011] The aforementioned disassembly and assembly tool for a rodless rubber expansion joint includes a connecting strip on the left end plate. The connecting strip has connecting holes at both ends. The connecting holes are fitted into the fastening screw and are coaxial with the fastening holes. A step is provided at the contact point between the connecting strip and the front and rear pressure strips.

[0012] The advantages of this utility model's disassembly and assembly tool for rodless rubber expansion joints are as follows: Through a reasonable design of the adjusting screw and support nut, it can quickly adapt to rodless rubber expansion joints of different sizes, significantly improving disassembly and installation efficiency. The use of plate-shaped end plates allows it to adapt to working conditions in confined spaces. The use of hinged end plates allows for flexible adjustment of the tool's size and adjustment mechanism, accommodating rodless rubber expansion joints of different specifications and installation conditions. The use of connecting pressure strips ensures even force application during disassembly and assembly, effectively preventing damage to the expansion joint and flange, and ensuring the integrity of the equipment. The use of an integrated device avoids the operational risks associated with traditional methods, providing more stable support and clamping force, and reducing operational hazards. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the first structural embodiment of the present utility model; Figure 3 This is a schematic diagram of the second structure of this utility model embodiment; Figure 4 This is a schematic diagram of the pressure strip structure in an embodiment of the present utility model.

[0014] Explanation of reference numerals in the attached drawings: Support screw 1, end plate 2, left end plate 21, front pressure bar 211, rear pressure bar 212, step 213, shear surface 214, pressure hole 215, connecting pressure bar 216, right end plate 22, fastening screw 3, support nut 4, inner nut 41, outer nut 42, adjusting nut 5, support hole 6, fastening hole 7, rubber expansion joint without tie rod 8, flange 81, mounting hole 812. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be described below in conjunction with specific embodiments and accompanying drawings.

[0016] Example 1 To address the problems existing in the disassembly and assembly of rodless rubber expansion joints in the prior art, this embodiment provides a tool for disassembling and assembling rodless rubber expansion joints. This tool has a reasonable structure, is easy to operate, and can effectively compress the rodless rubber expansion joint, ensuring stability and safety during disassembly while avoiding damage to the expansion joint and piping system. It assists operators in quickly disassembling rodless rubber expansion joints, reduces the difficulty of manual operation during disassembly, improves disassembly efficiency, and ensures the safety of components such as the expansion joint and pipe flanges.

[0017] A tool for disassembling and assembling a rodless rubber expansion joint includes a support screw 1, an end plate 2, a fastening screw 3, a support nut 4, and an adjusting nut 5. The upper part of the end plate is provided with a support hole 6, and the lower end of the end plate is provided with a fastening hole 7. The support screw passes through the support hole, and the fastening screw passes through the fastening hole. The end plate includes a left end plate 21 and a right end plate 22 arranged symmetrically. The support nut includes two inner nuts 41 and two outer nuts 42. The inner nuts are located on the inner side of the left end plate and the right end plate, and the outer nuts are located on the outer side of the left end plate and the right end plate. The adjusting nut is located on the outer side of the left end plate and the right end plate. The rodless rubber expansion joint 8 is snapped into the bottom inner side of the left end plate and the right end plate.

[0018] Two fastening holes are symmetrically arranged on the end plate below the support hole. The two fastening holes are elongated and the distance from the midpoint of the two fastening holes to the support hole is the same. Two fastening bolts are provided, and the two fastening bolts are respectively inserted into the two fastening holes.

[0019] The end plate is made of 10mm thick steel plate. The size of the bolt holes can be adjusted according to the specific size of the expansion joint. The fastening screws and support screws can also be flexibly adjusted according to the size of the expansion joint. After the operator installs the end plate (double-ended) between the expansion joint and the pipe flange, they adjust the fastening screws and support screws, and gradually compress the rodless rubber expansion joint by rotating the nut, making it easy to disassemble. The adjustment device is designed to accommodate expansion joints of different sizes while ensuring clamping stability during disassembly.

[0020] Example 2 To accommodate expansion joints of different sizes and installation conditions, further improve safety, and prevent wedge-shaped expansion caused by uneven stress on the upper and lower sides of the rodless rubber expansion joint, this embodiment modifies the structure of the end plates accordingly. The left and right end plates have the same structure; this embodiment describes the structure of the left end plate, while the right end plate can be symmetrically arranged.

[0021] The left end plate includes a front pressure strip 211 and a rear pressure strip 212. Support holes are provided at the same position at the top of the front and rear pressure strips. The front and rear pressure strips overlap and rotate around the support screw as an axis. Fastening holes are provided at the far ends of the front and rear pressure strips. Two fastening screws are provided, and the two fastening screws are respectively inserted into the fastening holes at the far ends of the front and rear pressure strips.

[0022] Both the front and rear pressure strips are made of 10mm thick steel plate, formed into long strips. Furthermore, to prevent misalignment between the twisted joint and the flange side of the expansion joint facing the twisted joint and the mating joint of the rodless rubber expansion joint, causing them to be not on the same plane, a step 213 is provided on the mating surface of the front and rear pressure strips. The sum of the steps of the front and rear pressure strips is the same as the thickness of the front or rear pressure strip.

[0023] Furthermore, to increase the twisting angle between the front and rear pressure strips, a shear surface 214 is provided on the stepped surface of the platform, with the shear surfaces inclined towards each other.

[0024] To further enhance the connection between the pressure strip and the rodless rubber expansion joint, pressure holes 215 are provided on the front and rear pressure strips. Positioning bolts are installed in the pressure holes. After passing through the pressure holes, the positioning bolts are inserted into the mounting holes 812 on the flange 81 of the rodless rubber expansion joint.

[0025] To accommodate different flange models, the pressure holes are arranged in an elongated shape along the length of the front and rear pressure strips.

[0026] To further improve the structural stability of the pressure strip structure when pressing the rodless rubber expansion joint, the left end plate also includes a connecting pressure strip 216. The two ends of the connecting pressure strip are provided with connecting holes, which are sleeved in the fastening screw and coaxial with the fastening hole. A step is provided at the contact point between the connecting pressure strip and the front and rear pressure strips.

[0027] When using the tool, select the appropriate disassembly tool from Embodiments 1 and 2 based on the size of the expansion joint and the pipe flange clearance, ensuring the tool fits properly with the expansion joint interface. Place the tool's end plate between the expansion joint flange and the pipe flange, ensuring a secure installation.

[0028] Using the tool and the nuts and washers at both ends, twist evenly to tighten the expansion joint. As the screws are rotated, the rodless rubber expansion joint will gradually tighten, making it easier to disassemble.

[0029] When disassembling the expansion joint, be careful to adjust the support screw to prevent the clamp from deforming or loosening. After the rubber expansion joint loosens, the rodless rubber expansion joint can be easily removed. During disassembly, be careful to support the expansion joint when tightening it to prevent it from falling and causing unnecessary danger. If you encounter difficulties during disassembly, check that the tools are installed correctly and ensure that the screws are properly tightened.

[0030] When installing a rodless rubber expansion joint.

[0031] Align the installation position: When installing the rodless rubber expansion joint, first ensure that the rodless rubber expansion joint is correctly positioned and aligned with the pipe, and then insert the fixing screws through the aligned pipe.

[0032] Loosen the tool screws: Loosen the fastening screws at both ends of the tool and restore the support screw to return the rodless rubber expansion joint to its initial state.

[0033] Fixing the rodless rubber expansion joint: After adjusting the rodless rubber expansion joint to the ideal position, the fixing installation is completed.

[0034] When using disassembly tools, ensure that the tools are firmly in contact with the expansion joint to prevent the tools from slipping.

[0035] When tightening the screws, apply force evenly to avoid deformation of the rodless rubber expansion joint caused by applying force on one side.

[0036] Before disassembly, check the condition of the rodless rubber expansion joint and the connecting pipe to ensure that there is no looseness or damage.

[0037] With a well-designed adjusting screw and support nut, it can quickly adapt to different sizes of rodless rubber expansion joints, significantly improving disassembly and installation efficiency.

[0038] Specialized tools avoid the operational risks of traditional methods, provide more stable support and clamping force, and reduce the dangers of operation.

[0039] The tool's size and adjustment mechanism are flexible and adjustable, enabling it to adapt to different specifications and installation conditions of rodless rubber expansion joints.

[0040] Reduced damage: During disassembly, the tool can apply force evenly, effectively avoiding damage to the expansion joint and flange, and ensuring the integrity of the equipment.

[0041] The above embodiments are merely illustrative of the structural concept and features of this utility model, intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly, and should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made based on the substance of the content of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tool for disassembling and assembling rodless rubber expansion joints, characterized in that: The device includes a support screw, an end plate, a fastening screw, a support nut, and an adjusting nut. The upper part of the end plate is provided with a support hole, and the lower end of the end plate is provided with a fastening hole. The support screw passes through the support hole, and the fastening screw passes through the fastening hole. The end plate includes a left end plate and a right end plate arranged symmetrically. The support nut includes two inner nuts and two outer nuts. The inner nuts are located on the inner side of the left end plate and the right end plate, and the outer nuts are located on the outer side of the left end plate and the right end plate. The adjusting nut is located on the outer side of the left end plate and the right end plate. A tie-rodless rubber expansion joint is snapped into the bottom inner side of the left end plate and the right end plate.

2. The tool for disassembling and assembling rodless rubber expansion joints according to claim 1, characterized in that: Two fastening holes are symmetrically arranged on the end plate below the support hole. The two fastening holes are elongated and the distance from the midpoint of the two fastening holes to the support hole is the same. Two fastening bolts are provided and are respectively inserted into the two fastening holes.

3. The tool for disassembling and assembling rodless rubber expansion joints according to claim 1, characterized in that: The left end plate includes a front pressure strip and a rear pressure strip. The support hole is provided at the same position at the top of the front pressure strip and the rear pressure strip. The front pressure strip and the rear pressure strip overlap and rotate around the support screw as an axis. The fastening hole is provided at the far end of the front pressure strip and the rear pressure strip. Two fastening screws are provided, and the two fastening screws are respectively inserted into the fastening holes at the far end of the front pressure strip and the rear pressure strip.

4. The tool for disassembling and assembling rodless rubber expansion joints according to claim 3, characterized in that: The mating surfaces of the front and rear pressure strips are provided with steps, and the sum of the steps of the front and rear pressure strips is the same as the thickness of the front or rear pressure strip.

5. The disassembly and assembly tool for rodless rubber expansion joints according to claim 4, characterized in that: The stepped surface of the platform is provided with shear surfaces, which are inclined towards each other.

6. The disassembly and assembly tool for rodless rubber expansion joints according to claim 3, characterized in that: The front and rear pressure strips are provided with pressure holes, and positioning bolts are provided in the pressure holes. After passing through the pressure holes, the positioning bolts are inserted into the mounting holes on the flange of the rodless rubber expansion joint.

7. The disassembly and assembly tool for rodless rubber expansion joints according to claim 6, characterized in that: The pressure holes are arranged in an elongated shape along the length of the front and rear pressure bars.

8. The tool for disassembling and assembling rodless rubber expansion joints according to claim 3, characterized in that: The left end plate also includes a connecting strip, with connecting holes at both ends. The connecting holes are fitted into the fastening screw and are coaxial with the fastening hole. A step is provided at the contact point between the connecting strip and the front and rear pressure strips.

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