Special tool for disassembling and assembling corrugated pipe locking nut of corrugated pipe adjusting valve
By designing a special tool for lock nut disassembly and assembly for bellows regulating valve, the problem of damage to the valve cover, time-consuming and low efficiency in the lock nut removal process in the prior art is solved, and a safe and fast corrugated tube is achieved Replace it to avoid leakage accidents.
Patent Information
- Application Number
- CN202420331269.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-02-22
AI Technical Summary
In the prior art, the lock nut removal process of the corrugated pipe regulating valve has problems such as damage to the valve cover, taking a long time and low efficiency, resulting in untimely replacement of the corrugated pipe, which may cause leakage accidents.
A special tool for disassembly and assembly of corrugated tube lock nuts is designed, including a cylinder and a symmetrically connected boss. The cylinder has rectangular holes and cylindrical holes. The boss can be snapped into the groove on the top surface of the lock nut, and through The combination of torque wrench and hand rod enables safe and fast lock nut removal and bellows replacement.
The tool can safely remove the lock nut, avoid valve cover damage, save spare parts costs, reduce maintenance costs, improve bellows replacement efficiency, and ensure leakage does not occur.
Smart Images
Figure CN222494061U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of equipment disassembly and assembly tools, in particular to a special tool for disassembly and assembly of a bellows locking nut of a bellows regulating valve. Background Art
[0002] In the production of polysilicon, media such as hydrogen, chlorine, and chlorosilane are often controlled by bellows-sealed regulating valves.
[0003] At present, the bellows of the bellows regulating valve is inserted into the valve cover and then connected to the inner thread of the valve cover by a locking nut sleeved on the bellows shaft to complete the installation. Since the bellows has a service life, when the bellows reaches its service life and needs to be replaced, the locking nut must be removed first.
[0004] However, the locking nut has an irregular structure, and the existing removal process thereof has the following problems:
[0005] 1. The locking nut is sleeved on the bellows shaft and built into the valve cover. There is no matching disassembly tool, so it can only be forcibly dismantled by damaging it each time, which not only increases the spare parts cost, but also sometimes damages the inside of the valve cover and eventually makes the bellows unable to be removed;
[0006] 2. The forced removal of the locking nut is not safe and reliable and time-consuming, resulting in low efficiency in the replacement of the bellows;
[0007] 3. The valve cover with internal damage needs extra time to repair, which results in the bellows not being replaced in time, causing the leakage of the regulating valve to expand and a leakage safety accident to occur. Utility Model Content
[0008] In view of the deficiencies in the prior art, the utility model provides a special tool for disassembling and assembling the bellows locking nut of a bellows regulating valve, so as to solve the problem in the prior art that forced removal of the locking nut will damage the inside of the valve cover and ultimately make the bellows unable to be removed and the time-consuming operation leads to low efficiency of the bellows replacement operation.
[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0010] A special tool for disassembling and assembling a bellows locking nut of a bellows regulating valve, comprising:
[0011] A cylinder having a rectangular hole and a cylindrical hole connected vertically therein; and
[0012] A pair of bosses, symmetrically connected to the lower end of the cylinder at an interval of 180° and arranged on both sides of the cylindrical hole, which can be inserted into the groove on the top surface of the bellows locking nut;
[0013] The rectangular hole is detachably connected to the square head of the torque wrench, and the cylindrical hole is used to accommodate the shaft of the bellows.
[0014] In one embodiment disclosed in the present application, the lower end of the cylinder is provided with three annular steps with gradually decreasing outer diameters;
[0015] A pair of bosses are connected to the outer end surface of the annular step with the lowest end and the smallest outer diameter.
[0016] In one embodiment disclosed in the present application, a pair of the bosses and the outer end surface of the lowest annular step with the smallest outer diameter are both magnetic.
[0017] In one embodiment disclosed in the present application, the thickness of each boss along the radial direction of the cylindrical hole is 5 mm.
[0018] In one embodiment disclosed in the present application, the inner diameter of the cylindrical hole is greater than the outer diameter of the bellows shaft;
[0019] The depth of the cylindrical hole is greater than the length of the bellows shaft.
[0020] In one embodiment disclosed in the present application, the inner diameter of the cylindrical hole is 18 mm and the depth is 82 mm.
[0021] In one embodiment disclosed in the present application, a pair of insertion holes for inserting the hand lever are opened in the upper part of the outer wall of the cylinder along the radial direction of the cylindrical hole;
[0022] The insertion hole is communicated with the rectangular hole and corresponds to the boss.
[0023] In one embodiment disclosed in the present application, the cross section of the rectangular hole is a square, and the projections of the four vertices of the square in the horizontal plane are respectively located on the circles of the projections of the inner side wall of the cylindrical hole in the horizontal plane;
[0024] The insertion hole vertically penetrates the side surface of the rectangular hole.
[0025] In one embodiment disclosed in the present application, the cylinder and the pair of bosses are integrally formed of molybdenum-added carbon steel and are galvanized on the surface.
[0026] Compared with the prior art, the beneficial effects of the utility model are:
[0027] 1. Through the cylinder with rectangular holes and cylindrical holes and a pair of bosses symmetrically connected to the lower end of the cylinder, the locking nut can be removed safely and intactly and the bellows can be replaced in time, which can avoid the internal damage of the valve cover caused by forced removal, save spare parts costs, reduce maintenance costs, and effectively improve the efficiency of bellows replacement.
[0028] 2. The outer diameters of the three annular steps decrease step by step, and can be matched with the internal steps of the valve cover and the top surface of the locking nut in sequence to improve the centering of the tool and the stability during rotation.
[0029] 3. After the locking nut is disconnected from the threaded connection pair between the valve cover, the magnetic boss and the annular step can attract the locking nut through magnetic force and remove it from the bellows shaft rod while taking out the tool, which is beneficial to further improve the efficiency of bellows replacement.
[0030] 4. After the upper handle is plugged into the jack, the tool can also be rotated to facilitate the removal of the locking nut in a space where the torque wrench cannot be used, thereby achieving the replacement of the bellows. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0032] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0033] Figure 2 It is a schematic diagram of the main cross-sectional structure of the utility model;
[0034] Figure 3 For the utility model Figure 1 The foundation is flipped 180° up and down to show the three-dimensional structure behind the hidden lines;
[0035] Figure 4 This is a real photo of the bellows regulating valve. DETAILED DESCRIPTION
[0036] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0041] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.
[0042] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0043] See also Figure 1 to Figure 4 As shown, the utility model provides a special tool for disassembling and assembling a bellows locking nut of a bellows regulating valve, comprising:
[0044] The cylinder 10 has a rectangular hole 11 and a cylindrical hole 12 connected to each other vertically; and
[0045] A pair of bosses 20 are symmetrically connected to the lower end of the cylinder 10 at an interval of 180 degrees and arranged on both sides of the cylindrical hole 12, which can be inserted into the groove on the top surface of the bellows locking nut;
[0046] The rectangular hole 11 is detachably connected to the square head of the torque wrench, and the cylindrical hole 12 is used to accommodate the shaft of the bellows.
[0047] Specifically, a pair of bosses 20 symmetrically connected to the lower end of the cylinder 10 match the groove on the top surface of the bellows locking nut. When the bellows needs to be replaced, align the cylindrical hole 12 of the tool with the bellows shaft and then lower it so that the boss 20 is inserted into the groove on the top surface of the bellows locking nut. At this time, the bellows shaft is located in the cylindrical hole 12. Then, insert the square head of the torque wrench into the rectangular hole 11 to connect the two. Then, turn the torque wrench to loosen the locking nut through the tool, and continue to turn the torque wrench to disconnect the threaded connection between the locking nut and the valve cover. Finally, remove the tool and the locking nut from the bellows shaft in turn, then remove the bellows from the valve cover, and then put a new bellows into the valve cover. After that, the replacement of the new bellows can be completed by reverse operation. That is to say, through the cylinder 10 having the rectangular hole 11 and the cylindrical hole 12 and a pair of bosses 20 symmetrically connected to the lower end of the cylinder 10, the locking nut can be removed and the bellows can be replaced in time safely and intactly, which can avoid internal damage to the valve cover caused by forced removal, save spare parts costs, reduce maintenance costs, and effectively improve the efficiency of bellows replacement.
[0048] See also Figure 1 and Figure 3 As shown, the lower end of the cylinder 10 is provided with three annular steps 13 with decreasing outer diameters in sequence; a pair of bosses 20 are connected to the outer end surface of the annular step 13 with the smallest outer diameter at the lowest end. That is, the outer diameters of the three annular steps 13 are gradually reduced, and can be matched with the inner steps of the valve cover and the top surface of the locking nut in sequence to improve the centering of the tool and the stability during the rotation process.
[0049] The pair of bosses 20 and the outer end surface of the annular step 13 at the bottom with the smallest outer diameter are both magnetic. That is, after the locking nut is disconnected from the threaded connection pair with the valve cover, when the tool is taken out, the magnetic boss 20 and the annular step 13 can attract the locking nut through magnetic force and remove it from the bellows shaft rod, which is beneficial to further improve the efficiency of bellows replacement.
[0050] In order to ensure the torsional strength of the boss 20 so that it does not deform when the tool is rotated to disassemble the locking nut, the radial thickness of each boss 20 along the cylindrical hole 12 (i.e. the thickness of the annular step 13 at the lower end with the smallest outer diameter) is 5 mm.
[0051] In order to prevent the bellows shaft from colliding with the inner side wall and inner top of the cylindrical hole 12 and causing damage or destruction, the inner diameter of the cylindrical hole 12 is larger than the outer diameter of the bellows shaft, and the depth of the cylindrical hole 12 is larger than the length of the bellows shaft. In this embodiment, the inner diameter of the cylindrical hole 12 is 18 mm and the depth is 82 mm.
[0052] See also Figure 1 and Figure 2 As shown, a pair of insertion holes 14 for inserting a hand rod (not shown in the figure) are opened along the radial direction of the cylindrical hole 12 on the upper part of the outer wall of the cylinder 10, and the insertion holes 14 are connected with the rectangular hole 11 and correspond to the boss 20. That is, after the hand rod is inserted through the insertion holes 14, the tool can also be rotated to facilitate the removal of the locking nut in the space where the torque wrench cannot be used, thereby realizing the replacement of the bellows.
[0053] The cross section of the rectangular hole 11 is a square, and the projections of the four vertices of the square in the horizontal plane are respectively located on the circle of the projection of the inner wall of the cylindrical hole 12 in the horizontal plane (i.e. coincide with it); the insertion hole 14 vertically penetrates the side surface of the rectangular hole 11.
[0054] In this embodiment, the cylinder 10 and the pair of bosses 20 are made of molybdenum-added carbon steel (ie, 2Mo43# steel) and are made by integral molding, and the surface is galvanized.
[0055] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.
Claims
1. A special tool for disassembling and assembling the bellows locking nut of a bellows regulating valve, characterized in that: include: A cylinder having a rectangular hole and a cylindrical hole connected vertically therein; and A pair of bosses, symmetrically connected to the lower end of the cylinder body at an interval of 180 degrees and arranged on both sides of the cylindrical hole, which can be inserted into the groove on the top surface of the bellows locking nut; The rectangular hole is detachably connected to the square head of the torque wrench, and the cylindrical hole is used to accommodate the shaft of the bellows.
2. The special tool for disassembling and assembling the bellows locking nut of the bellows regulating valve according to claim 1, characterized in that: The lower end of the cylinder is provided with three annular steps with gradually decreasing outer diameters; A pair of bosses are connected to the outer end surface of the annular step with the lowest end and the smallest outer diameter.
3. The special tool for disassembling and assembling the bellows locking nut of the bellows regulating valve according to claim 2, characterized in that: The pair of bosses and the outer end surface of the annular step at the lowest end with the smallest outer diameter are both magnetic.
4. The special tool for disassembling and assembling the bellows locking nut of the bellows regulating valve according to any one of claims 1 to 3, characterized in that: The thickness of each boss along the radial direction of the cylindrical hole is 5 mm.
5. The special tool for disassembling and assembling the bellows locking nut of the bellows regulating valve according to claim 1, characterized in that: The inner diameter of the cylindrical hole is greater than the outer diameter of the bellows shaft; The depth of the cylindrical hole is greater than the length of the bellows shaft.
6. The special tool for disassembling and assembling the bellows locking nut of the bellows regulating valve according to claim 5, characterized in that: The inner diameter of the cylindrical hole is 18 mm and the depth is 82 mm.
7. The special tool for disassembling and assembling the bellows locking nut of the bellows regulating valve according to claim 1 or 6, characterized in that: A pair of insertion holes for inserting the hand lever are provided on the upper part of the outer wall of the cylinder along the radial direction of the cylindrical hole; The insertion hole is communicated with the rectangular hole and corresponds to the boss.
8. The special tool for disassembling and assembling the bellows locking nut of the bellows regulating valve according to claim 7, characterized in that: The cross section of the rectangular hole is a square, and the projections of the four vertices of the square in the horizontal plane are respectively located on the circles of the projections of the inner side wall of the cylindrical hole in the horizontal plane; The insertion hole vertically penetrates the side surface of the rectangular hole.
9. The special tool for disassembling and assembling the bellows locking nut of the bellows regulating valve according to claim 1 or 8, characterized in that: The cylinder and the pair of bosses are made of molybdenum-added carbon steel in one piece, and the surface is galvanized.