Regulating valve dismounting tool

Abstract

The utility model discloses a disassembling tool for a regulating valve. The disassembling tool comprises a screw rod, a pair of buckles, a pressing plate and a nut, wherein a fixed seat is arranged at the lower end of the screw rod; the buckles are arranged on the two sides of the fixing base and movably connected with the fixing base. A first through hole is formed in the pressing plate, and the screw rod can be inserted into the first through hole; the nut can be in threaded connection with the screw. The large-diameter adjusting valve cage dismounting device effectively solves the problem that a valve cage is clamped in the dismounting process of a large-diameter adjusting valve, avoids damage to a valve body and the valve cage, improves dismounting efficiency, and reduces equipment maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of valve disassembly tools, and in particular to a disassembly fixture for regulating valves. Background Technology

[0002] In numerous industrial sectors such as petrochemicals, power generation, and metallurgy, control valves with cages have become core equipment in pipeline fluid control systems due to their precise flow control and stable regulating performance. However, disassembling these control valves during equipment maintenance and repair presents many challenges. After prolonged use, the cage of a control valve is prone to rust and adhesion between itself and the inner wall of the valve body due to fluid erosion, media corrosion, and scaling, causing the cage to become firmly stuck inside the valve body and difficult to remove.

[0003] Currently, when disassembling such control valves, especially those with larger diameters, workers mostly use relatively primitive methods, such as directly striking the valve cage or valve body with tools like hammers and pry bars, attempting to loosen the contact points through impact. However, this approach has significant drawbacks: firstly, the striking force and direction are difficult to control precisely, easily causing dents, cracks, and other damage to the valve body surface, compromising its structural integrity, affecting its sealing performance and pressure-bearing capacity, thus shortening the valve body's service life and increasing equipment replacement costs; secondly, repeated striking is not only inefficient but can also deform the valve cage, significantly increasing the difficulty of subsequent repair or replacement work. Summary of the Invention

[0004] According to an embodiment of the present invention, a disassembly fixture for a regulating valve is provided, comprising:

[0005] The screw has a fixed base at its lower end;

[0006] A pair of latches are located on both sides of the fixing base and are movably connected to the fixing base respectively;

[0007] A pressure plate with a first through hole, into which a screw can be inserted;

[0008] Nuts can be threaded onto screws.

[0009] Furthermore, the end of the buckle connected to the fixing base is provided with a second through hole and several third through holes. The fixing base is provided with a fourth through hole corresponding to the second through hole and a fifth through hole corresponding to one of the third through holes. The second through hole and the fourth through hole are connected by a pin, and the third through hole and the fifth through hole are connected by a pin.

[0010] Furthermore, each end of the fixing base is provided with a limiting groove, the end of the buckle is movably disposed in the limiting groove, and the fourth through hole and the fifth through hole penetrate the limiting groove.

[0011] Furthermore, the end of the buckle that connects to the fixing base is fan-shaped.

[0012] Furthermore, the angle between the buckle and the fixing seat is adjustable.

[0013] Furthermore, a rubber sleeve is fitted onto the end of the buckle furthest from the fixing seat.

[0014] Furthermore, the pressure plate has a cage-like structure.

[0015] The beneficial effects of this utility model are:

[0016] 1. Highly targeted: The outer end of the buckle can be inserted into the flow channel of the valve cage, making full use of the structural features of the valve cage itself, and can accurately and stably drive the valve cage to move upward.

[0017] 2. Equipment protection: The reasonable design of the rubber sleeve and pressure plate at the end of the buckle can avoid damage to the valve body and valve cage during disassembly, ensuring the integrity of the equipment and its normal use in the future, and reducing the cost of equipment maintenance and replacement.

[0018] 3. Convenient and efficient operation: The valve cage can be disassembled simply by rotating the nut. The operation process is simple and easy to understand, greatly improving disassembly efficiency. At the same time, the tooling structure is stable and reliable, reducing the labor intensity of workers.

[0019] 4. Wide adaptability: The angle between the clip and the fixed seat is adjustable, allowing the tooling to adapt to various models of regulating valves, which has strong versatility and broad application prospects.

[0020] The valve disassembly fixture according to the present invention effectively solves the problem of valve cage jamming during the disassembly of large-diameter valves, avoids damage to the valve body and valve cage, improves disassembly efficiency, and reduces equipment maintenance costs.

[0021] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0022] Figure 1 This is a perspective view of the valve disassembly fixture being placed inside the valve body according to an embodiment of the present invention.

[0023] Figure 2 for Figure 1 Top view;

[0024] Figure 3 for Figure 2 Sectional view at point AA;

[0025] Figure 4 for Figure 1 A schematic diagram of the structure after removing the valve body;

[0026] Figure 5 This is a perspective view of the disassembly fixture for the regulating valve according to an embodiment of the present utility model;

[0027] Figure 6 This is a perspective view of the buckle according to an embodiment of the present utility model. Detailed Implementation

[0028] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0029] First, combine Figures 1-6 The present invention describes a control valve disassembly fixture according to an embodiment of the present invention, which is used for disassembling the valve cage of a large-diameter control valve and has a wide range of applications.

[0030] like Figures 1-6 As shown, the regulating valve disassembly fixture of this utility model embodiment includes:

[0031] Screw 1, with a fixing seat 2 at the lower end of screw 1, the fixing seat 2 being fixedly connected to screw 1, and the fixing seat 2 being made of stainless steel;

[0032] A pair of clips 3 are provided on both sides of the fixed base 2 and are movably connected to the fixed base 2 respectively;

[0033] Pressure plate 4, with a first through hole 41 provided on pressure plate 4, screw 1 can be inserted into the first through hole 41;

[0034] Nut 5 can be threaded to screw 1. By rotating nut 5, the distance between pressure plate 4 and fixed seat 2 can be adjusted. During disassembly, insert buckle 3 into valve cage 7 and adjust the opening angle so that it extends into the flow channel. Then, put pressure plate 4 on screw 1, screw on nut 5, so that the bottom of nut 5 contacts pressure plate 4. Continue to rotate nut 5. Screw 1 will move upward under the action of thread transmission, thereby driving buckle 3 to move upward, realizing the disassembly of valve cage 7.

[0035] Furthermore, such as Figures 3-6 As shown, in this embodiment, the end of the buckle 3 connected to the fixing base 2 is provided with a second through hole 31 and a plurality of third through holes 32, and the plurality of third through holes 32 are arranged sequentially with the second through hole 31 as the center; the fixing base 2 is provided with a fourth through hole 21 corresponding to the second through hole 31 and a fifth through hole 22 corresponding to one of the third through holes 32, the second through hole 31 and the fourth through hole 21 are connected by a pin, and the third through hole 32 and the fifth through hole 22 are connected by a pin.

[0036] Furthermore, such as Figure 5As shown, in this embodiment, a limiting groove 23 is provided at each end of the fixed base 2, and the end of the buckle 3 is movably disposed in the limiting groove 23. The fourth through hole 21 and the fifth through hole 22 penetrate the limiting groove 23. The setting of the limiting groove 23 can not only limit the range of motion of the buckle 3 and ensure the stability of the buckle 3 during the adjustment of angle and application of force, but also enhance the reliability of the connection between the buckle 3 and the fixed base 2 to a certain extent.

[0037] Furthermore, such as Figure 3 , 6 As shown, in this embodiment, the end of the buckle 3 connected to the fixing base 2 is fan-shaped.

[0038] Furthermore, such as Figure 3 , 5 As shown, in this embodiment, the angle between the buckle 3 and the fixed base 2 is adjustable. During disassembly, by adjusting the opening and closing angle of the buckle 3, the outer end of the buckle 3 can smoothly extend into the flow channel of the valve cage 7, providing a point of leverage for disassembly.

[0039] Furthermore, in this embodiment, a rubber sleeve is fitted on the end of the buckle 3 away from the fixed base 2. The rubber sleeve is soft and has good anti-slip properties. On the one hand, it can prevent the buckle 3 from scratching the surface of the valve cage 7 during disassembly. On the other hand, it can increase the friction between the buckle 3 and the valve cage 7, ensuring that the buckle 3 and the valve cage 7 will not slide relative to each other during disassembly.

[0040] Furthermore, such as Figures 1-2 As shown in Figures 5 and 6, in this embodiment, the pressure plate 4 has a cage-like structure, through which the valve cage 7 can be seen, facilitating observation of the disassembly of the valve cage 7. Furthermore, this structure reduces its own weight while ensuring the strength of the pressure plate 4, making it easier for workers to operate. Simultaneously, the shape of the cage-like pressure plate 4 is adapted to the shape of the valve body top, allowing for uniform pressure to be applied to the valve body top during disassembly.

[0041] Working principle:

[0042] During disassembly, first, observe the position and size of the flow channel opening of the valve cage 7 according to the model of the regulating valve to be disassembled and the structure of the valve cage 7. Then, pull out the pin used to fix the angle between the clip 3 and the fixing seat 2 (i.e., the pin connecting the third through hole 32 and the fifth through hole 22). Then, put the fixing seat 2 together with the clip 3 into the valve body, adjust the opening and closing angle of the clip 3 according to the size of the valve cage 7 so that the outer end of the clip 3 is inserted into the flow channel opening of the valve cage 7, and then insert the pin into the fifth through hole 22 and the third through hole 32.

[0043] Next, the pressure plate 4 is fitted onto the screw 1 through the first through hole 41, so that the pressure plate 4 is located above the top of the valve body and the bottom of the pressure plate 4 contacts the valve body.

[0044] Finally, screw nut 5 onto screw 1 and slowly rotate nut 5 until its bottom gradually contacts pressure plate 4. Then, use a wrench to rotate nut 5 at a uniform speed. As nut 5 rotates, screw 1 moves upward under the action of the thread, causing clip 3 to pull valve cage 7 upward. During disassembly, constantly observe the looseness of valve cage 7 and adjust the rotation force and speed of nut 5 appropriately according to the actual resistance. If valve cage 7 is stuck tightly, pause briefly, gently shake the fixture, and then continue rotating nut 5.

[0045] Above, refer to Figures 1-6 The present invention describes a disassembly fixture for a regulating valve according to an embodiment of the present invention, which effectively solves the problem of valve cage 7 jamming during the disassembly of a large-diameter regulating valve, avoids damage to the valve body and valve cage 7, improves disassembly efficiency, and reduces equipment maintenance costs.

[0046] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0047] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A tooling for disassembling a regulating valve, characterized in that, Include: The screw has a fixed base at its lower end; A pair of latches are provided on both sides of the fixing base and are movably connected to the fixing base respectively; A pressure plate, wherein a first through hole is provided on the pressure plate, and the screw can be inserted into the first through hole; A nut, which can be threadedly connected to the screw.

2. The control valve disassembly fixture as described in claim 1, characterized in that, The buckle is provided with a second through hole and several third through holes at one end connected to the fixing base. The fixing base is provided with a fourth through hole corresponding to the second through hole and a fifth through hole corresponding to one of the third through holes. The second through hole and the fourth through hole are connected by a pin, and the third through hole and the fifth through hole are connected by a pin.

3. The control valve disassembly fixture as described in claim 2, characterized in that, Each end of the fixed base is provided with a limiting groove, the end of the buckle is movably disposed in the limiting groove, and the fourth through hole and the fifth through hole penetrate the limiting groove.

4. The control valve disassembly fixture as described in claim 2, characterized in that, The end of the buckle that connects to the fixing base is fan-shaped.

5. The control valve disassembly fixture as described in claim 2, characterized in that, The angle between the buckle and the fixing seat is adjustable.

6. The control valve disassembly fixture as described in claim 1, characterized in that, A rubber sleeve is fitted onto the end of the buckle furthest from the fixing seat.

7. The control valve disassembly fixture as described in claim 1, characterized in that, The pressure plate has a cage-like structure.

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