A tool for taking out the sealing gasket in the flange of a coal gas manual blind plate

Abstract

This application discloses a tool for removing the inner sealing gasket of a gas blind flange, belonging to the technical field of flange sealing gasket removal. It includes a pull rod. A pulling assembly is provided on one side of the pull rod. The pulling assembly includes a fixed rod fixedly mounted on one side of the pull rod. A hook is hinged to the fixed rod, the hinge point dividing the hook into a hook head and a hook tail. An adjusting assembly is connected to the hook tail, which drives the hook to rotate around the hinge point. The operator can drive the hook to rotate around the hinge point using the adjusting assembly, thus retracting the hook and allowing it to be smoothly inserted between the two flanges. After the hook is fully inserted between the two flanges, the operator can operate the hook to rotate in the opposite direction around the hinge point, thus unfolding the hook. By hooking the sealing gasket with the hook head of the unfolded hook, and then retracting the hook to clamp the sealing gasket, the sealing gasket can be easily removed by pulling the pull rod.

Description

Technical Field

[0001] This application relates to the field of flange gasket removal technology, and in particular to a tool for removing the inner gasket of a gas manual blind flange. Background Technology

[0002] In gas blind flange installation, the gaskets inside the flanges require replacement and maintenance due to prolonged use. During gasket removal, the two flanges are spread apart by about one centimeter, and the gasket often adheres to the flanges due to adhesive or gas medium. It is difficult for operators to remove the gasket directly by hand, and direct hand operation is strictly prohibited. Related techniques involve using a screwdriver to lift the gasket from the side. However, due to the small gap, the pressure from the pipeline makes it difficult for workers to successfully push the gasket out. If the gasket deflects during the lifting process, it further increases the difficulty of removal. Summary of the Invention

[0003] The purpose of this application is to provide a tool for removing the inner sealing gasket of a gas manual blind flange, in order to solve the problem of difficulty in removing the inner sealing gasket of a flange during gas manual blind flange operations in the prior art.

[0004] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0005] This application provides a tool for removing the inner sealing gasket of a gas manual blind flange, comprising:

[0006] Pull rod;

[0007] The pulling assembly includes a fixed rod disposed on one side of the pull rod, and a hook is hinged to the fixed rod, the hinge point dividing the hook into a hook head and a hook tail;

[0008] An adjustment component is connected to the hook tail and is used to drive the hook to rotate around the hinge point.

[0009] This solution involves inserting a fixing rod between two flanges, using a hook to hold the gasket, and then pulling the rod to remove the gasket. In situations where the distance between the two flanges is short, to ensure smooth insertion of the hook assembly, this solution adjusts the component to drive the hook to rotate around the hinge point, thus changing the angle between the hook and the fixing rod, allowing the hook to retract and extend. When inserting the assembly between the two flanges, reducing the angle between the hook and the fixing rod causes the rod to retract, allowing the hook to easily insert between the flanges. Once the hook is fully inserted, the operator can rotate it in the opposite direction around the hinge point, increasing the angle between the hook and the fixing rod, thus extending the hook to easily hook the gasket. After the hook head hooks the gasket, it can be retracted again to hold the gasket. Finally, pulling the rod allows for easy removal of the gasket. This solution allows for flexible adjustment of the angle between the hook and the fixing rod via an adjustable component, ensuring the hook can be smoothly inserted between the two flanges. It enables efficient and convenient removal of the gasket within a small operating space between the two flanges, and can accommodate gaskets of varying thicknesses, thus improving the versatility and practicality of the tool.

[0010] Optionally, the adjusting component includes: an adjusting rod that slides through the pull rod and protrudes from the pull rod at both ends; the adjusting rod is parallel to the fixed rod; a limiting post is provided on the adjusting rod; a limiting groove is provided on the hook tail; and the limiting post is slidably disposed in the limiting groove.

[0011] This solution uses the combination of the limiting post and the limiting groove, and based on the lever principle, to enable the adjusting rod to rotate by moving in the length direction.

[0012] Optionally, the pull rod is provided with a housing on one side of the fixed rod, and the insertion groove has a receiving cavity to accommodate the fixed rod and the adjusting rod. The opposite sides of the housing are respectively provided with a first groove for passing through the hook head and a second groove for passing through the hook tail. The first groove and the second groove are respectively connected to the receiving cavity.

[0013] Optionally, by rotating the hook around the hinge point, the top surface of the hook tail can abut against the top surface of the second groove, and when the top surface of the hook tail abuts against the top surface of the second groove, the acute angle formed by the hook head and the fixing rod is less than 30°.

[0014] Optionally, the bottom of the adjusting rod is provided with a pressure plate that is slidably connected to the accommodating cavity, and a spring is provided between the pressure plate and the bottom surface of the accommodating cavity.

[0015] After the hook head enters the interior of the two flanges, the limited field of vision makes it difficult to see the gap between the gasket and the flange to hook the gasket; furthermore, the hook head has the ability to move when the adjusting rod is not under external force, making it difficult for the hook head to find the gap between the gasket and the flange. This solution uses a spring, specifically a compression spring, placed between the bottom surface of the receiving cavity and the pressure plate. The spring exerts an axial force on the pressure plate. When no external force is applied, the spring presses against the pressure plate, causing the top surface of the hook tail to abut against the top surface of the second groove, thus fixing the position of the hook head. In use, when the hook enters between the two flanges, it automatically unfolds under the action of the spring. At this time, by moving the adjusting component, the end of the hook head is moved between the gasket and the flange, thus hooking the gasket. Then, pressing the adjusting rod retracts the hook head to clamp the gasket together with the insert. At this point, the hook retracts to its minimum distance in the opposite direction of the two flanges, facilitating subsequent lifting and removal.

[0016] Compared with existing technologies, the beneficial effects achieved by this application are as follows: This application drives the hook to rotate around the hinge point by adjusting the component, thereby changing the angle between the hook and the fixed rod, and realizing the retraction and extension of the hook. In situations where the distance between two flanges is short, reducing the angle between the hook and the fixed rod allows the rod to retract, enabling the hook to be smoothly inserted between the two flanges. After the hook is fully inserted between the two flanges, the operator can rotate the hook in the opposite direction around the hinge point, increasing the angle between the hook and the fixed rod, thus extending the hook to easily hook the gasket. After the hook head of the extended hook hooks the gasket, the hook can be retracted to clamp the gasket. Finally, by pulling the rod, the gasket can be easily removed. This application, through the adjusting component, can flexibly adjust the angle between the hook and the fixed rod, ensuring that the hook can be smoothly inserted between the two flanges. It can efficiently and conveniently remove the gasket within a small operating space where the two flanges are spread apart, and can meet the removal requirements of gaskets of different thicknesses, thus improving the versatility and practicality of the tool. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of some embodiments provided in this application;

[0019] Figure 2 These are enlarged schematic diagrams of the hook structure of some embodiments provided in this application;

[0020] Figure 3 These are schematic diagrams of the adjustment component structure of some embodiments provided in this application;

[0021] Figure 4 This is a schematic diagram of the hook head and the first groove structure of some embodiments provided in this application;

[0022] Figure 5 These are schematic diagrams of the hook tail and the second groove structure of some embodiments provided in this application;

[0023] Figure 6 This is a schematic diagram of the internal structure of the accommodating cavity in some embodiments provided in this application.

[0024] Explanation of reference numerals in the attached drawings: 1-Pull rod; 2-Fixing rod; 3-Pull hook; 4-Adjusting component; 5-Insertion shell; 6-Spring; 31-Hook head; 32-Hook tail; 321-Limiting groove; 41-Adjusting rod; 42-Limiting post; 43-Operating rod; 44-Pressure plate; 51-First groove; 52-Second groove. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure / application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0026] Example 1

[0027] This embodiment describes a tool for removing the inner sealing gasket of a gas manual blind flange. (Refer to...) Figure 1 and Figure 2 In this embodiment, the tool for removing the inner sealing gasket of the gas manual blind flange includes: a pull rod 1. A pulling assembly is provided on one side of the pull rod 1. The pulling assembly includes a fixed rod 2 fixedly disposed on one side of the pull rod 1. A hook 3 is hinged to the fixed rod 2, and the hinge point divides the hook 3 into a hook head 31 and a hook tail 32. The hook head 31 has a pointed end for inserting between the flange and the sealing gasket. An adjusting assembly 4 is connected to the hook tail 32, which is used to drive the hook 3 to rotate around the hinge point.

[0028] In this embodiment, the fixing rod 2 is inserted between two flanges, and the sealing gasket is held in place by the pull hook 3. The sealing gasket is then removed by pulling the pull rod 1. In situations where the distance between the two flanges is short, to ensure that the pull rod 1 assembly can be smoothly inserted between the two flanges, this embodiment uses the adjusting component 4 to drive the pull hook 3 to rotate around the hinge point, thereby changing the angle between the pull hook 3 and the fixing rod 2, achieving the retraction and extension of the pull hook 3. Specifically, in use, the operator drives the pull hook 3 to rotate around the hinge point by adjusting the component 4, reducing the angle between the pull hook 3 and the fixing rod 2, thus retracting the pull hook 3. The retraction of the pull rod 1 reduces the size of the entire pulling assembly between the two flanges, allowing the pull hook 3 to be smoothly inserted between the two flanges. After the pull hook 3 is fully inserted between the two flanges, the operator can operate the pull hook 3 to rotate in the opposite direction around the hinge point, increasing the angle between the pull hook 3 and the fixing rod 2, thus extending the pull hook 3. After the hook head 31 of the extended pull hook 3 hooks the gasket, the gasket is clamped by retracting the pull hook 3. Finally, the gasket can be easily removed by pulling the pull rod 1. In this embodiment, the angle between the pull hook 3 and the fixing rod 2 can be flexibly adjusted by the adjusting component 4 to ensure that the hook head can be smoothly inserted between the two flanges. It can efficiently and conveniently remove the gasket in a small operating space with the two flanges spread apart, and can meet the removal requirements of gaskets of different thicknesses, improving the versatility and practicality of the tool.

[0029] Example 2:

[0030] Based on the same inventive concept as Embodiment 1, refer to Figure 1 and Figure 3 In this embodiment, there are two pulling components, symmetrically arranged on the same side of the pull rod 1. Further, in this embodiment, the adjusting component 4 includes two adjusting rods 41, each slidingly inserted into the pull rod 1 with both ends protruding from the pull rod 1. Further, each adjusting rod 41 corresponds to one of the two pulling components and is parallel to the fixed rod 2. The two adjusting rods 41 are connected to the side of the pull rod 1 away from the pulling components via an operating rod 43. The operating rod 43 is parallel to the pull rod 1, and the distance between the operating rod 43 and the pull rod 1 is sufficient to allow for simultaneous gripping of both with one hand. During the process of pulling out the sealing gasket, the operator can grip the operating rod 43 and the pull rod 1 with one hand to clamp and pull out the sealing gasket.

[0031] Furthermore, a limiting post 42 is provided on the adjusting rod 41, and a limiting groove 321 is provided on the hook tail 32. The limiting post 42 is slidably disposed within the limiting groove 321. Through the cooperation of the limiting post 42 and the limiting groove 321, and based on the lever principle, the movement of the adjusting rod 41 in the length direction can drive the hook 3 to rotate. It should be noted that during operation, the distance between the two flanges should be sufficient to accommodate the unfolding distance of the hook tail, so as to avoid the hook tail being unable to be pulled out due to exceeding the distance between the two flanges when the hook head clamps the sealing gasket with the adjusting rod 41.

[0032] Example 3:

[0033] Based on the same inventive concept as Embodiment 2, refer to Figures 3 to 5 In this embodiment, the pull rod 1 is provided with an insert shell 5 on one side of the fixed rod 2. The insert groove has a receiving cavity to accommodate the fixed rod 2 and the adjusting rod 41. The insert shell 5 has a first groove 51 for the hook head to pass through and a second groove 52 for the hook tail 32 to pass through on opposite sides. The first groove 51 and the second groove 52 are respectively connected to the receiving cavity.

[0034] By rotating the hook 3 around the hinge point, the top surface of the hook tail 32 can be brought into contact with the top surface of the second groove 52. When the top surface of the hook tail 32 contacts the top surface of the second groove 52, the acute angle formed by the hook head 31 and the fixing rod 2 is 20°. Gas pipeline flange gaskets are mainly made of metal or plastic, and their thickness generally does not exceed 5mm. The angle between the hook head 31 and the fixing rod 2 does not need to be too large to clamp the gasket. In this embodiment, the second groove 52 limits the rotation range of the hook 3, thus avoiding an excessively large angle between the hook head 31 and the fixing rod 2, which would increase the difficulty of adjusting the adjusting rod 41.

[0035] In this embodiment, a pressure plate 44 that is slidably connected to the accommodating cavity is provided at the bottom of the adjusting rod 41, and a compression spring 6 is provided between the pressure plate 44 and the bottom surface of the accommodating cavity.

[0036] refer to Figure 6After the hook head enters the interior of the two flanges, the limited field of vision makes it difficult to see the gap between the gasket and the flange to hook the gasket; moreover, the hook head has the ability to move when the adjusting rod 41 is not under external force, which makes it difficult for the hook head to find the gap between the gasket and the flange. In this embodiment, a spring 6 is provided between the bottom surface of the accommodating cavity and the pressure plate 44, which can generate force on the pressure plate 44 in the axial direction. When no external force is applied, the spring 6 presses against the pressure plate 44, so that the top surface of the hook tail 32 abuts against the top surface of the second groove 52, thereby fixing the position of the hook head. In use, when the hook 3 enters between the two flanges, it can automatically unfold under the action of the spring 6. At this time, by moving the position of the adjusting component 4, the end of the hook head is moved between the gasket and the flange, thereby hooking the gasket. Then, by pressing the adjusting rod 41, the hook head 31 can be retracted to clamp the gasket together with the insert 5. At this time, the hook 3 retracts to the minimum distance in the opposite direction of the two flanges, which facilitates subsequent lifting and removal. In this embodiment, the spring 6 provides a certain supporting force to the adjusting rod 41, so that the hook head can be in a fixed position, thereby facilitating the quick positioning of the sealing gasket at its end.

[0037] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this disclosure / application, and these improvements and modifications should also be considered within the protection scope of this disclosure / application.

Claims

1. A tool for removing the inner sealing gasket of a gas manual blind flange, characterized in that, include: Pull rod (1); The pulling assembly includes a fixed rod (2) disposed on one side of the pull rod (1), and a hook (3) is hinged to the fixed rod (2), the hinge point dividing the hook (3) into a hook head (31) and a hook tail (32). Adjustment component (4), which is connected to the hook tail (32), is used to drive the hook (3) to rotate around the hinge point.

2. The tool for removing the inner sealing gasket of the gas manual blind flange according to claim 1, characterized in that, The adjustment component (4) includes: an adjustment rod (41), which slides through the pull rod (1) and has both ends protruding from the pull rod (1). The adjustment rod (41) is parallel to the fixed rod (2). A limit post (42) is provided on the adjustment rod (41), and a limit groove (321) is provided on the hook tail (32). The limit post (42) is slidably disposed in the limit groove (321).

3. The tool for removing the inner sealing gasket of the gas manual blind flange according to claim 2, characterized in that, The pull rod (1) is provided with a housing (5) on one side of the fixed rod (2). The insertion groove has a receiving cavity to accommodate the fixed rod (2) and the adjusting rod (41). The housing (5) has a first groove (51) for passing through the hook head (31) and a second groove (52) for passing through the hook tail (32) on opposite sides. The first groove (51) and the second groove (52) are respectively connected to the receiving cavity.

4. The tool for removing the inner sealing gasket of the gas manual blind flange according to claim 3, characterized in that, By rotating the hook (3) around the hinge point, the top surface of the hook tail (32) can abut against the top surface of the second groove (52), and when the top surface of the hook tail (32) abuts against the top surface of the second groove (52), the acute angle of the angle formed by the hook head (31) and the fixing rod (2) is less than 30°.

5. The tool for removing the inner sealing gasket of the gas manual blind flange according to claim 4, characterized in that, The bottom of the adjusting rod (41) is provided with a pressure plate (44) that is slidably connected to the accommodating cavity, and a spring (6) is provided between the pressure plate (44) and the bottom surface of the accommodating cavity.

6. The tool for removing the inner sealing gasket of the gas manual blind flange according to claim 2, characterized in that, The end of the hook head (31) has a pointed corner for insertion between the flange and the gasket.

7. The tool for removing the inner sealing gasket of the gas manual blind flange according to claim 2, characterized in that, There are two traction components, which are symmetrically arranged on the same side of the pull rod (1).

8. The tool for removing the inner sealing gasket of the gas manual blind flange according to claim 5, characterized in that, There are two adjusting rods (41), and each of the two adjusting rods (41) corresponds to one of the two pulling components. The two adjusting rods (41) are located on the side of the pull rod (1) away from the pulling component and are connected by the operating rod (43).

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