A device for disassembling a valve gland

Abstract

The utility model discloses a device for dismantling valve gland relates to valve gland dismantling equipment technical field, including the rod piece, and the rod piece is L shape, and one end is set as first connecting rod, and the sliding installation of rod piece has the moving part, and the moving part includes second connecting rod, and the threaded hole is all seted up in first connecting rod and second connecting rod, and the limit hole is seted up in its circumference side, and the dismantling piece is installed on first connecting rod and second connecting rod, and the first screw rod is rotatably installed in the connecting block in the dismantling piece middle, and first screw rod is screw connection with threaded hole, and the limit rod is arranged in the side annular array of connecting block, and the limit rod is corresponding with limit hole adaptation, and the fixed head is fixedly installed on connecting block. The utility model discloses through the first screw rod is spun from the threaded hole, and the limit rod is separated from the limit hole simultaneously, thereby the whole dismantling piece is dismantled and is changed, avoids the problem that the device overall dismantling effect drops because of fixed head deformation.

Description

Technical Field

[0001] This utility model relates to the technical field of valve gland disassembly equipment, specifically a device for disassembling valve glands. Background Technology

[0002] Oil well production trees are equipped with various valves, collectively referred to as production tree valves. These valves control the velocity and flow rate of the passing medium. Since the media flowing through these valves are primarily crude oil, gas, and wastewater, they are highly susceptible to scaling and corrosion due to chemical reactions, leading to sluggish operation. Therefore, regular maintenance of the production tree valves is necessary. Typically, maintenance involves disassembling components such as the lock nut, handwheel, and valve gland. The valve gland, in particular, is extremely difficult to disassemble due to its embedded threaded connection to the valve body, requiring specialized disassembly equipment.

[0003] Chinese utility model patent application number 201821367568.7 provides a device for disassembling valve caps. When using this device to disassemble the valve cap, a first fixing head and a second fixing head can be respectively inserted into the two holes of the valve cap. By applying force to the handle, using the first and second fixing heads as fulcrums and utilizing the lever principle, the valve cap can be rotated, and the valve cap can be easily disassembled. Therefore, in this utility model, the disassembly device will not collide with the valve body during the disassembly process, avoiding damage to the valve body. Furthermore, using this disassembly device saves time and effort, improving work efficiency.

[0004] However, during the use of the aforementioned equipment, it was found that, according to the lever principle, the fulcrum is the point around which the lever rotates and bears the force transmitted by the lever. When disassembling the valve cap using the fixed jack as the fulcrum, after force is applied to the handle, the force is transmitted to the fixed jack through the lever. The fixed jack needs to withstand a large pressure and torque, and the existence of the lever arm amplifies the force acting on the fixed jack, making the actual force it bears much greater than the tightening force of the valve cap itself. Under this stress state for a long time, the fixed jack is prone to deformation. After deformation, its shape and size will change, making it difficult to accurately fit into the hole of the valve cap. This results in uneven force on the valve cap during disassembly, making it difficult to rotate and disassemble smoothly, leading to incomplete disassembly and affecting disassembly efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a device for disassembling valve glands. It solves the problem mentioned in the background technology that after the fixed top head is deformed, its shape and size will change, making it difficult to accurately fit into the hole of the valve gland. This results in uneven force on the valve gland during disassembly, making it difficult to rotate and disassemble smoothly, leading to incomplete disassembly and affecting disassembly efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for disassembling a valve gland, comprising a rod, the rod being L-shaped, one end of which is configured as a first connecting rod. A movable component is slidably mounted on the rod, the movable component including a second connecting rod. Both the first and second connecting rods have threaded holes, and limit holes are provided on the periphery of the threaded holes. Disassembly components are mounted on both the first and second connecting rods, the disassembly components including a connecting block. A first helical rod is rotatably mounted in the middle of the connecting block, the first helical rod being helically connected to the threaded hole and connected to a first knob. Limit rods are arranged in a ring array on one side of the connecting block, the limit rods corresponding to and adapted to the limit holes. A fixed top is fixedly mounted on the connecting block.

[0007] Preferably, a positioning groove is provided on the back side of the rod, and an anti-slip strip is attached to the positioning groove.

[0008] Preferably, the second connecting rod is fixed to one side of the moving ring, and a second spiral rod is spirally connected to the moving ring. One end of the second spiral rod is fixedly connected to an anti-slip plate, which is disposed in the moving ring and corresponds to the positioning groove.

[0009] Preferably, the rod has positioning holes arranged in an array at equal intervals on one side.

[0010] Preferably, the rod is installed in the mounting groove of the handle, and a soft pad is provided on the outer surface of the handle.

[0011] Preferably, the handle is provided with a positioning component, which includes a positioning tube, a third spiral rod is spirally connected to the positioning tube, a second knob is fixedly connected to the outer end of the third spiral rod, and a positioning rod is fixedly installed on the inner end of the third spiral rod, the positioning rod being adapted to the positioning hole.

[0012] This utility model provides a device for disassembling valve glands. It has the following advantages: (1) When the fixed top head is deformed due to long-term stress, the first screw rod can be easily unscrewed from the threaded hole by rotating the first knob, and the limiting rod can be disengaged from the limiting hole at the same time, so that the entire disassembly part can be disassembled and replaced. This avoids the problem that the overall performance of the device will decline and be difficult to repair due to the deformation of the fixed top head, ensuring the normal progress of the disassembly work and helping to maintain the disassembly efficiency.

[0013] (2) This utility model, by setting a positioning component and a handle, utilizes the lever principle, which states that the longer the lever arm, the smaller the force required to apply the same torque. Adjusting the handle length can change the lever arm size. When the handle length increases, the lever arm becomes longer. When the operator selects a suitable handle length, only a small force is needed to generate sufficient torque to rotate the valve cover, achieving a labor-saving effect. It is suitable for tightening tight valve covers. Attached Figure Description

[0014] Figure 1 This is a diagram showing the overall structure of the present utility model; Figure 2 This utility model Figure 1 Structural diagram of the central rod; Figure 3 This utility model Figure 1 Structural diagram of the moving component; Figure 4 This utility model Figure 1 Structural diagram of the middle handle; Figure 5 This utility model Figure 4 A structural diagram of the positioning component; Figure 6 This utility model Figure 1 Structural diagram of the disassembled components.

[0015] In the diagram, 1. Handle; 11. Soft pad; 12. Mounting slot; 13. Positioning assembly; 131. Second knob; 132. Third screw rod; 133. Positioning rod; 134. Positioning tube; 2. Rod; 21. First connecting rod; 22. Positioning slot; 23. Positioning hole; 3. Moving part; 31. Second connecting rod; 32. Moving ring; 33. Second screw rod; 34. Anti-slip plate; 4. Disassembly part; 41. Connecting block; 42. Limiting rod; 43. First screw rod; 44. Fixed top; 45. First knob; 5. Limiting hole; 6. Threaded hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1: Please see Figures 1-6 This utility model provides a device for disassembling a valve cover, including a rod 2, which is L-shaped, with one end configured as a first connecting rod 21. A movable part 3 is slidably mounted on the rod 2, and the movable part 3 includes a second connecting rod 31. Both the first connecting rod 21 and the second connecting rod 31 have threaded holes 6, and limit holes 5 are provided on the periphery of the threaded holes 6. Both the first connecting rod 21 and the second connecting rod 31 are equipped with disassembly parts 4, which include a connecting block 41. A first spiral rod 43 is rotatably mounted in the middle of the connecting block 41. The first spiral rod 43 is spirally connected to the threaded hole 6 and is connected to a first knob 45. Limit rods 42 are arranged in a ring array on one side of the connecting block 41, and the limit rods 42 are correspondingly adapted to the limit holes 5. A fixed top 44 is fixedly mounted on the connecting block 41. A positioning groove 22 is provided on the back side of the rod 2, and an anti-slip strip is attached to the positioning groove 22; The second connecting rod 31 is fixed to one side of the moving ring 32. The moving ring 32 is spirally connected to a second spiral rod 33. One end of the second spiral rod 33 is fixedly connected to an anti-slip plate 34. The anti-slip plate 34 is set in the moving ring 32 and corresponds to the positioning groove 22.

[0018] Specifically, when installing the fixed top head 44, the limiting rod 42 on the disassembly part 4 is inserted into the limiting hole 5, so that the first spiral rod 43 corresponds to the threaded hole 6. The first knob 45 is rotated to drive the first spiral rod 43 to rotate, so that the first spiral rod 43 spirals into the threaded hole 6, thereby realizing the installation of the disassembly part 4 on both the first connecting rod 21 and the second connecting rod 31. According to the hole spacing of the valve cap, slide the moving ring 32 to adjust the position of the second connecting rod 31 on the rod 2. After adjustment, rotate the second spiral rod 33 to make the anti-slip plate 34 press tightly against the anti-slip strip in the positioning groove 22, fix the moving ring 32, and thus determine the position of the second fixed top head 44, so that the two fixed top heads 44 can accurately correspond to the holes of the valve cap. The moving part 3 can slide on the rod 2. The distance between the two fixed top heads 44 can be flexibly adjusted according to the hole spacing of different valve caps, so that the device can be used for disassembling valve caps of various specifications, improving the versatility of the device. The fixing head 44 of the disassembly part 4 on the first connecting rod 21 and the fixing head 44 of the disassembly part 4 on the second connecting rod 31 are respectively embedded into the two holes of the valve cover. With the fixing head 44 as the fulcrum, force is applied to the rod 2. By utilizing the lever principle, the valve cover can be easily rotated. Compared with disassembling by hand or other simple tools, it can effectively reduce manpower consumption, improve disassembly efficiency, and reduce the labor intensity of operators. The cooperation between the limiting rod 42 and the limiting hole 5 ensures that the angle of the fixed top head 44 is fixed after installation and will not rotate arbitrarily, thus ensuring accurate force transmission direction during disassembly. At the same time, the design of the moving ring 32, the second spiral rod 33, the anti-slip plate 34, and the positioning groove 22 can fix the position of the second connecting rod 31, allowing the two fixed top heads 44 to be accurately aligned with the holes of the valve cover, and to remain stable during disassembly, preventing displacement. The disassembly component 4 is detachable via a spiral connection, allowing for direct removal and replacement of damaged parts without the need for a complete replacement of the entire device. This reduces maintenance costs and enables rapid restoration of device performance, ensuring the smooth progress of disassembly work.

[0019] Furthermore, for easier removal of the valve gland, please refer to [link / reference]. Figures 1-6 Positioning holes 23 are arranged at equal intervals on one side of the rod 2; The rod 2 is installed in the mounting groove 12 of the handle 1, and a soft pad 11 is provided on the outer surface of the handle 1; The handle 1 is provided with a positioning component 13, which includes a positioning tube 134. A third spiral rod 132 is spirally connected to the positioning tube 134. A second knob 131 is fixedly connected to the outer end of the third spiral rod 132. A positioning rod 133 is fixedly installed on the inner end of the third spiral rod 132. The positioning rod 133 is adapted to the positioning hole 23.

[0020] Specifically, the positioning component 13 on the handle 1 can mate with the positioning hole 23 on the rod 2. Rotating the second knob 131 causes the third spiral rod 132 to rotate within the positioning tube 134, allowing the positioning rod 133 to insert into or remove from the positioning hole 23. When inserted into the positioning hole 23, the handle 1 can be fixed in a specific position on the rod 2, ensuring that the handle 1 will not slide or rotate freely during disassembly, making force transmission more stable, facilitating precise force application by the user, and easily completing the disassembly operation. By using the positioning rod 133 to correspond to different positioning holes 23, the length of the handle 1 can be adjusted. This allows for different disassembly forces required depending on the installation position and tightness of different valve caps. Adjusting the length of the handle 1 changes the lever arm; according to the lever principle, a longer lever arm produces a greater torque when the same force is applied. By adjusting the length of the handle 1, suitable disassembly torque can be provided for different valve caps, making disassembly easier and more efficient.

[0021] Working principle: Insert the limiting rod 42 on the disassembly part 4 into the limiting hole 5 on the first connecting rod 21 and the second connecting rod 31, so that the first spiral rod 43 corresponds to the threaded hole 6. Rotate the first knob 45 to drive the first spiral rod 43 to rotate, so that it spirals into the threaded hole 6, thereby installing the disassembly part 4 on both the first connecting rod 21 and the second connecting rod 31. At this time, the fixed top head 44 is also installed. According to the valve cover hole distance, slide the moving ring 32 to adjust the position of the second connecting rod 31 on the rod 2. After adjustment, rotate the second spiral rod 33 to make the anti-slip plate 34 press tightly against the anti-slip strip in the positioning groove 22, fix the position of the moving ring 32, and determine the position of the second fixed top head 44 so that the two fixed top heads 44 can accurately correspond to the holes of the valve cover. Install rod 2 in mounting slot 12 of handle 1. Depending on the installation position and tightness of the valve cover, turn the second knob 131 of positioning assembly 13 on handle 1 to drive the third spiral rod 132 to rotate in positioning tube 134, so that positioning rod 133 is inserted into different positioning holes 23 on one side of rod 2. Adjust the length of handle 1 to obtain a suitable lever arm and provide a suitable torque for disassembly. The fixing head 44 of the disassembly part 4 on the first connecting rod 21 and the fixing head 44 of the disassembly part 4 on the second connecting rod 31 are respectively inserted into the two holes of the valve cover. Using the fixing head 44 as a fulcrum, the handle 1 is held and force is applied to the rod 2. By using the lever principle, the valve cover is rotated, thereby realizing the disassembly of the valve cover.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for disassembling a valve gland, comprising a rod (2), characterized in that: The rod (2) is L-shaped, with one end set as a first connecting rod (21). A movable part (3) is slidably installed on the rod (2). The movable part (3) includes a second connecting rod (31). Both the first connecting rod (21) and the second connecting rod (31) have threaded holes (6). Limiting holes (5) are opened on the periphery of the threaded holes (6). Both the first connecting rod (21) and the second connecting rod (31) have disassembly parts (4). The disassembly parts (4) include a connecting block (41). A first spiral rod (43) is rotatably installed in the middle of the connecting block (41). The first spiral rod (43) is spirally connected to the threaded hole (6). The first spiral rod (43) is connected to the first knob (45). Limiting rods (42) are arranged in a ring array on one side of the connecting block (41). The limiting rods (42) are correspondingly adapted to the limiting holes (5). A fixed top (44) is fixedly installed on the connecting block (41).

2. The device for disassembling a valve gland according to claim 1, characterized in that: A positioning groove (22) is provided on the back side of the rod (2), and an anti-slip strip is pasted in the positioning groove (22).

3. The device for disassembling a valve gland according to claim 2, characterized in that: The second connecting rod (31) is fixed on one side of the moving ring (32). The moving ring (32) is spirally connected to a second spiral rod (33). One end of the second spiral rod (33) is fixedly connected to an anti-slip plate (34). The anti-slip plate (34) is set in the moving ring (32) and corresponds to the positioning groove (22).

4. The device for disassembling a valve gland according to claim 1, characterized in that: Positioning holes (23) are arranged at equal intervals on one side of the rod (2).

5. The device for disassembling a valve gland according to claim 4, characterized in that: The rod (2) is installed in the mounting groove (12) of the handle (1), and a soft pad (11) is provided on the outer surface of the handle (1).

6. The device for disassembling a valve gland according to claim 5, characterized in that: The handle (1) is provided with a positioning component (13), which includes a positioning tube (134). A third spiral rod (132) is spirally connected in the positioning tube (134). A second knob (131) is fixedly connected to the outer end of the third spiral rod (132). A positioning rod (133) is fixedly installed on the inner end of the third spiral rod (132). The positioning rod (133) is adapted to the positioning hole (23).

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