Special tool for disassembling high-pressure inverted angle valve

Abstract

The utility model provides a special tool for disassembling a high-pressure inverted angle valve, which comprises a jacking base, a hydraulic cylinder and a hydraulic cylinder, the jacking assembly is mounted at the top of the jacking base; the lower ends of the multiple stretching pieces are detachably connected with a valve element seat arranged in the middle of the valve seat, and the upper ends of the stretching pieces are detachably connected with the power output end of the jacking assembly. The power output end of the jacking assembly jacks the stretching piece upwards so that the valve element seat at the lower end of the stretching piece can be pulled out of the middle of the valve seat. The inverted high-pressure angle valve dismounting tool can effectively solve the restriction problem of dismounting of the valve seat, realizes autonomous maintenance of the inlet valve, and reduces the maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly of a high-pressure inverted angle valve, in particular to a special tool for disassembly of a high-pressure inverted angle valve. Background Art

[0002] The existing angle valves often use inverted valves, such as the French imported Masoneilan inverted valves, etc. This type of valve is a special valve for corrosion-resistant working conditions. There is relatively little experience in the maintenance of this type of valve in China. The disassembly of the valve seat is a key node in the maintenance process. However, due to technical confidentiality and other reasons, there is no special tooling for the maintenance of the above valves. Utility Model Content

[0003] In view of the shortcomings of the prior art mentioned above, the purpose of the utility model is to provide a special tool for disassembling a high-pressure inverted angle valve, which is used to solve the problem in the prior art that the valve seat needs to be returned to the original factory for repair or pulled by hanging chains and lifting ears when disassembling, which easily damages the internal ceramic valve seat and makes it impossible to remove it. In addition, the technical blockade leads to a very high maintenance cost for returning to the factory for repair.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a special tool for disassembling a high-pressure inverted angle valve, including: a lifting base, which is circumferentially arranged on the valve seat; a lifting assembly, which is installed on the top of the lifting base; and a stretching piece, wherein the lower ends of several stretching pieces are detachably connected to the valve core seat arranged in the middle of the valve seat, and the upper ends of the stretching pieces are detachably connected to the power output end of the jacking assembly; wherein the power output end of the jacking assembly lifts the stretching piece upward to pull the valve core seat at the lower end of the stretching piece out from the middle of the valve seat.

[0005] In one embodiment of the utility model, the lifting base includes: support columns, a plurality of support columns are arranged on the surface of the valve seat at circumferential intervals; and a base plate, the base plate is installed on the top of the plurality of support columns, and the base plate is a hollow structure.

[0006] In one embodiment of the present invention, a threaded hole is provided on the surface of the base plate, the support column is a stud structure, and the upper end of the support column is threadedly connected to the threaded hole.

[0007] In an embodiment of the present invention, the lower end of the support column is correspondingly inserted into the groove on the surface of the valve seat.

[0008] In one embodiment of the utility model, the jacking assembly includes: a jacking motor, which is circumferentially installed on the surface of the base plate; and a stretching top plate, which is arranged above the jacking motor, and the power output end of the jacking motor is connected to the bottom of the stretching top plate, and the middle part of the stretching top plate is circumferentially provided with a plurality of through holes corresponding to the stretching parts.

[0009] In one embodiment of the present invention, the lifting motor is a hydraulic lifting cylinder.

[0010] In one embodiment of the utility model, the stretching member includes: a stretching rod, the upper and lower ends of the stretching rod are both threaded structures, and the lower end of the stretching rod is threadedly connected to the thread hole on the valve core seat; and a nut, the nut is arranged on the top side of the stretching top plate, and the nut is threadedly connected to the upper end of the stretching rod.

[0011] In one embodiment of the present invention, the nut is screwed onto a plurality of stretching rods, the lower surface of the nut is closely attached to the upper surface of the stretching top plate, and the torque of each nut is made the same.

[0012] In one embodiment of the utility model, the special tool also includes: an electric heating device, which is arranged on the surface of the valve seat to heat the valve seat, and when the preset temperature is reached, the lifting motor is controlled to synchronously lift and stretch the top plate.

[0013] In one embodiment of the present invention, the electric heating device is an electric heating belt.

[0014] Beneficial effects of the utility model: The utility model proposes a special tool for disassembling a high-pressure inverted angle valve. The special tool can easily remove the valve core seat in the sleeve-lined ceramic valve seat through the pulling design of the valve core seat composed of the lifting assembly and the stretching part on the lifting base. The torque during the removal process is controllable and will not damage any parts of the valve body. It gets rid of the technical blockade of the original factory maintenance and has a significant effect on the disassembly and assembly of fragile valve seats. A large amount of time and material costs can be saved through simple tool design. The special tool has a simple structure and simple application scenarios, and is easy to operate and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the special disassembly tool of the utility model.

[0016] Figure 2 Shown is a structural schematic diagram of the base plate and valve core member of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the base plate of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the stretch top plate of the utility model.

[0019] Component number description

[0020] Lifting base 1; lifting assembly 2; stretching member 3; valve seat 10; valve core seat 20; support column 11; base plate 12; threaded hole 121; lifting motor 21; stretching top plate 22; stretching rod 31; nut 32; groove 101; thread hole 201; through hole 221. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0023] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0024] See also Figure 1 The utility model provides a special tool for disassembling a high-pressure inverted angle valve, comprising: a lifting base 1, which is circumferentially arranged on a valve seat 10; a lifting assembly 2, which is installed on the top of the lifting base 1; and a stretching member 3, wherein the lower ends of a plurality of stretching members 3 are detachably connected to a valve core seat 20 arranged in the middle of the valve seat 10, and the upper ends of the stretching members 3 are detachably connected to a power output end of the lifting assembly 2; wherein the power output end of the lifting assembly 2 lifts the stretching member 3 upward to pull the valve core seat 20 at the lower end of the stretching member 3 out of the middle of the valve seat 10.

[0025] It is not difficult to find from the above content that in the process of disassembling the high-pressure inverted angle valve, the lifting base 1 is first placed on the valve seat 10, and the lifting base 1 is placed on the upper surface of the valve seat 10 outside the valve core seat 20. Then the lifting assembly 2 is installed on the lifting base 1, the stretching member 3 is passed through the lifting assembly 2, and the upper end of the stretching member 3 is connected to the lifting assembly 2, and the lower end of the stretching member 3 is connected to the valve core seat 20. Thus, the driving effect of the lifting assembly 2 on the stretching member 3 can be achieved, so that the stretching member 3 can move upward away from the valve seat 10 with the valve core seat 20 connected at its lower end. By pulling the valve core seat 20 from the valve seat 10 in the above manner, the valve core seat 20 on the sleeve lined ceramic valve seat 10 can be easily removed, and the torque during the removal process is controllable, and no parts of the valve body will be damaged, breaking away from the technical blockade of the original factory maintenance, and the disassembly and assembly effect of the fragile valve seat 10 is significant, and a large amount of time and material costs can be saved through simple tool design. Moreover, the special tool has a simple structure, simple application scenarios, and is easy to operate and practical.

[0026] like Figure 1-3 As shown, the lifting base 1 includes: support columns 11, a plurality of support columns 11 are arranged on the surface of the valve seat 10 at circumferential intervals; and a base plate 12, the base plate 12 is installed on the top of the plurality of support columns 11, and the base plate 12 is a hollow structure.

[0027] In one embodiment of the utility model, when the jacking base 1 is placed on the valve seat 10, a plurality of support columns 11 can be designed to be placed on the upper surface of the valve seat 10. Then the base plate 12 is placed on the support columns 11, so as to construct the jacking base 1 for carrying the jacking assembly 2. Moreover, after the jacking assembly 2 is placed on the jacking base 1, the valve core seat 20 can be driven to be taken out of the valve seat 10 by connecting the lower end of the stretching member 3 with the valve core seat 20 located at the center of the valve seat 10 and the upper end of the stretching member 3 with the power output end of the jacking assembly 2.

[0028] Specifically, Figure 2 As shown, the surface of the base plate 12 is provided with a threaded hole 121, and the support column 11 is a stud structure, and the upper end of the support column 11 is threadedly connected to the threaded hole 121. In this embodiment, the base plate 12 can have a threaded hole 121 on its surface, and the surface of the support column 11 is also provided with a corresponding thread, so that the support column 11 can be threadedly connected to the threaded hole 121 on the base plate 12 to achieve the connection between the support column 11 and the base plate 12, thereby improving the stability of the jacking base 1 when the jacking assembly 2 is jacked.

[0029] Optionally, the lower end of the support column 11 is correspondingly inserted into the groove 101 on the surface of the valve seat 10. When the support column 11 is supporting, it can also be inserted into the groove 101 on the surface of the valve seat 10, thereby avoiding the lateral movement and other instability problems of the support column 11 when supporting the base plate 12.

[0030] like Figure 1 and 4 As shown, the jacking assembly 2 includes: a jacking motor 21, which is circumferentially installed on the surface of the base plate 12; and a stretching top plate 22, which is arranged above the jacking motor 21, and the power output end of the jacking motor 21 is connected to the bottom of the stretching top plate 22, and the middle part of the stretching top plate 22 is circumferentially provided with a plurality of through holes 221 corresponding to the stretching member 3.

[0031] In one embodiment of the utility model, the lifting motor 21 can be installed on the base plate 12, and the stretching top plate 22 can be installed on the power output end of the lifting motor 21. Specifically, during use, the upper end of the stretching member 3 is connected to the stretching top plate 22, and the lower end of the stretching member 3 is connected to the valve core seat 20 at the center of the valve seat 10. Thus, when the lifting assembly 21 provides an upward lifting force to the stretching top plate 22, the stretching top plate 22 can move upward with the stretching member 3 and the valve core seat 20 connected to the lower end of the stretching member 3, so that the valve core seat 20 is lifted out from the middle of the valve seat 10, so as to solve the technical problem that the ceramic valve seat 10 is damaged and cannot be removed due to the direct use of the lifting chain to hang the lifting ear for pulling during disassembly.

[0032] Preferably, the lifting motor 21 is a hydraulic lifting cylinder. In one embodiment of the utility model, by using the hydraulic lifting cylinder to apply force to the stretching top plate 22, the stretching member 3 can provide a stable driving force when pulling the valve core seat 20 in the valve seat 10, which has a significant effect on the disassembly of the fragile valve core seat 20.

[0033] like Figure 1 As shown, the stretching member 3 includes: a stretching rod 31, the upper and lower ends of the stretching rod 31 are both threaded structures, and the lower end of the stretching rod 31 is threadedly connected to the thread hole 201 on the valve core seat 20; and a nut 32, the nut 32 is arranged on the top side of the stretching top plate 22, and the nut 32 is threadedly connected to the upper end of the stretching rod 31.

[0034] In one embodiment of the utility model, the stretching rod 31 can be a threaded structure at both ends, and of course, the whole can be a threaded rod. Specifically, when the stretching rod 31 is installed on the stretching top plate 22 and the valve core seat 20, the lower end of the stretching rod 31 can be first threadedly connected to the corresponding thread hole 201 on the valve core seat 20. Then the upper end of the stretching rod 31 passes through the stretching top plate 22 and extends to the top side of the stretching top plate 22, and the nut 32 is screwed on the stretching rod 31 so that the lower surface of the nut 32 is tightly attached to the upper surface of the stretching top plate 22. When the lifting motor 21 provides the lifting force, it will first move the stretching top plate 22 upward, and at the same time, the nut 32 is pressed against the surface of the stretching top plate 22, and the stretching rod 31 and the valve core seat 20 connected to its lower end will also move upward together, thereby pulling out the valve core seat 20 on the valve seat 10.

[0035] Furthermore, the nuts 32 are screwed onto the plurality of stretching rods 31 , the lower surfaces of the nuts 32 are closely attached to the upper surface of the stretching top plate 22 , and the torques of the nuts 32 are made the same.

[0036] In one embodiment of the utility model, in order to improve the uniformity of the stretching of the valve core seat 20 by the stretching rod 31, multiple groups of stretching rods 31 are arranged along the circumference of the valve core seat 20. In addition, multiple groups of nuts 32 correspondingly installed on each stretching rod 31 are also arranged. When the lower surface of the nut 32 is tightly attached to the upper surface of the stretching top plate 22, the torque of the nut 32 can be uniformly adjusted to, for example, 176 N·M, thereby ensuring stability when the valve core seat 20 is pulled out.

[0037] Furthermore, the special tool also includes: an electric heating device, which is arranged on the surface of the valve seat 10 to heat the valve seat 10, and when a preset temperature is reached, controls the lifting motor 21 to synchronously lift and stretch the top plate 22.

[0038] In an embodiment of the utility model, when the valve core seat 20 is lifted by the cooperation of the lifting assembly 2 and the stretching member 3, the valve seat 10 can also be heated by using an electric heating device. After the temperature reaches a preset temperature, the lifting motor 21 is used to simultaneously pressurize and lift the top plate 22 to quickly remove the valve core seat 20 from the valve seat 10. Specifically, the lifting pressure can be set according to the valve caliber; the preset temperature of the electric heating device can be set to 150°C.

[0039] Preferably, the electric heating device is an electric heating belt. After the torque adjustment of the nut 32 is completed, the valve seat 10 and the valve core seat 20 are heated to 150° C. by the electric heating belt, and after the temperature reaches the preset value, the hydraulic lifting cylinder is pressurized synchronously to pull the valve core seat 20 out of the valve seat 10.

[0040] In summary, the utility model can easily remove the valve core seat 20 in the sleeve-lined ceramic valve seat 10 through the mutual cooperation between the jacking assembly 2 and the stretching member 3 on the jacking base 1, and the special pulling tool composed of the detachable connection between the jacking assembly 2 and the valve core seat 20. Moreover, during disassembly, by installing the nut 32 on the stretching rod 31 on the top side of the stretching top plate 22, it is possible to ensure the jacking effect of the stretching rod 31 while facilitating the rapid installation and disassembly between the stretching rod 31 and the stretching top plate 22. Moreover, by uniformly applying torque using the nut 32 and heating the valve seat 10 through an electric heating device, and when the heating temperature reaches a preset value, it is synchronized with the jacking assembly 2 to pressurize, so as to achieve controllable torque during the removal process without damaging any components on the valve body. Therefore, the utility model effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A special tool for disassembling a high-pressure inverted angle valve, characterized in that: include: A lifting base (1), wherein the lifting base (1) is circumferentially mounted on the valve seat (10); A lifting assembly (2), the lifting assembly (2) being mounted on the top of the lifting base (1); and A stretching member (3), wherein the lower ends of a plurality of the stretching members (3) are detachably connected to a valve core seat (20) provided in the middle of the valve seat (10), and the upper end of the stretching member (3) is detachably connected to a power output end of the jacking assembly (2); The power output end of the lifting component (2) lifts the stretching member (3) upward to pull the valve core seat (20) at the lower end of the stretching member (3) out from the middle of the valve seat (10).

2. The special tool for disassembling a high-pressure inverted angle valve according to claim 1 is characterized in that: The lifting base (1) comprises: A support column (11), wherein a plurality of the support columns (11) are arranged at circumferential intervals on the surface of the valve seat (10); and A base plate (12), wherein the base plate (12) is installed on the top of a plurality of the support columns (11), and the base plate (12) is a hollow structure.

3. The special tool for disassembling a high-pressure inverted angle valve according to claim 2 is characterized in that: A threaded hole (121) is provided on the surface of the base plate (12); the support column (11) is a stud structure; the upper end of the support column (11) is threadedly connected to the threaded hole (121).

4. The special tool for disassembling a high-pressure inverted angle valve according to claim 3 is characterized in that: The lower end of the support column (11) is correspondingly inserted into the groove (101) on the surface of the valve seat (10).

5. The special tool for disassembling a high-pressure inverted angle valve according to claim 2 is characterized in that: The lifting assembly (2) comprises: A lifting motor (21), the lifting motor (21) being circumferentially mounted on the surface of the base plate (12); and A stretching top plate (22), the stretching top plate (22) is arranged above the lifting motor (21), the power output end of the lifting motor (21) is connected to the bottom of the stretching top plate (22), and a plurality of through holes (221) corresponding to the stretching member (3) are circumferentially arranged in the middle of the stretching top plate (22).

6. The special tool for disassembling a high-pressure inverted angle valve according to claim 5 is characterized in that: The lifting motor (21) is a hydraulic lifting cylinder.

7. The special tool for disassembling a high-pressure inverted angle valve according to claim 5, characterized in that: The stretching member (3) comprises: A stretching rod (31), wherein both upper and lower ends of the stretching rod (31) are threaded structures, and the lower end of the stretching rod (31) is threadedly connected to the thread hole (201) on the valve core seat (20); and A nut (32), wherein the nut (32) is arranged on one side of the top of the stretching top plate (22), and the nut (32) is threadedly connected to the upper end of the stretching rod (31).

8. The special tool for disassembling a high-pressure inverted angle valve according to claim 7, characterized in that: The nut (32) is screwed onto a plurality of the stretching rods (31), the lower surface of the nut (32) is tightly attached to the upper surface of the stretching top plate (22), and the torque of each nut (32) is the same.

9. The special tool for disassembling a high-pressure inverted angle valve according to claim 8, characterized in that: The special tool further comprises: an electric heating device, which is arranged on the surface of the valve seat (10) to heat the valve seat (10) and, when a preset temperature is reached, controls the lifting motor (21) to synchronously lift the stretching top plate (22).

10. The special tool for disassembling a high-pressure inverted angle valve according to claim 9, characterized in that: The electric heating device is an electric heating belt.

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