Tool for quickly disassembling valve core gland of electric angle throttle valve

Abstract

The utility model provides a tool for quickly disassembling a valve core gland of an electric angle throttle valve, and belongs to the technical field of valve body component disassembling tools. The tool comprises a fixing piece, a center hole is formed in the fixing piece, the diameter of the center hole is not smaller than that of a valve rod, and a valve rod sheath for the valve rod to stretch into is arranged at the position, corresponding to the center hole, of the fixing piece; a screwing part is arranged on the valve rod protective sleeve, and connecting holes used for being matched with reserved threaded holes in the end face of the valve element gland are formed in the positions, on the periphery of the valve rod protective sleeve, of the fixing piece so that a fixing bolt can penetrate through and be screwed into the valve element gland. Compared with the prior art, the circumferential stress, close to the edge, of the fixing ring in the prior art is converted into the circumferential stress, close to the center, of the fixing piece, the circumferential size of the whole device is reduced, and the whole device is more convenient to install and operate under the condition that the periphery of the valve body is blocked by a pipeline; the overall structure is simpler, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve body component disassembly tools, in particular to a tool for quickly disassembling a valve core gland of an electric angle throttle valve. Background Art

[0002] Various throttle valves are often used in oil enterprise stations. Electric angle throttle valves are a commonly used throttle valve mainly used to accurately adjust the flow and pressure of fluids in the pipe body. Compared with traditional angle valves, electric angle throttle valves have higher adjustment accuracy and longer service life. However, during the use of electric angle throttle valves, the sealing parts and throttling parts in the valve body are subject to long-term erosion of the fluid, which is prone to problems such as valve core wear and damage, resulting in a decrease in the accuracy of valve flow control. Therefore, professional personnel are required to perform regular maintenance and maintenance. The main components of the sealing and throttling parts of common electric angle throttle valves include valve stems, valve cores, valve core glands, and bases for installing valve core glands. The valve stem is partially located in the valve core and partially exposed outside the valve core. The valve core is located in the valve core gland, and the valve core gland is located in the valve seat. The valve core gland and the valve seat are connected by threads, and the end face of the valve core gland is flush with the end face of the valve seat. When maintaining and servicing the electric angle throttle valve, it is necessary to check the wear of the valve core, so the valve core gland must be removed before the valve core can be inspected or replaced. Since the end face of the valve core gland is flush with the end face of the base, the surrounding surface of the valve core gland cannot be stressed, and only part of the valve stem is exposed to the valve core. Directly knocking on the valve stem or valve core gland to loosen the valve core gland can easily damage the valve stem and valve core, making it difficult to remove the valve core gland, which makes it difficult to maintain and service the electric angle throttle valve.

[0003] There is a Chinese utility model patent with authorization announcement number CN216883784U and authorization announcement date July 5, 2022, which discloses a disassembly and assembly tool for the upper cover of the hydraulic retractor cylinder. The disassembly and assembly tool for the upper cover of the hydraulic retractor cylinder can also be used for the disassembly of the valve core gland of the electric angle throttle valve, and at the same time solves the above-mentioned problem of difficulty in disassembling the valve core gland of the electric angle throttle valve. The disassembly and assembly tool for the upper cover of the hydraulic retractor cylinder includes a fixing ring and a fastening screw. At least two fixing nuts are arranged at the bottom of the fixing ring. A corresponding number of connecting holes are arranged on the fixing ring. One end of the fastening screw is threadedly connected to the fastening nut, and the other end passes through the connecting hole on the fixing ring and is threadedly connected to the upper cover of the hydraulic retractor cylinder. A number of connecting pieces are equidistantly arranged on the circumferential side of the fixing ring. The connecting piece and the fixing ring are an integrated structure, and a rotating handle is arranged on the connecting piece. When it is necessary to remove the upper cover of the hydraulic recuperator cylinder, align the connecting hole on the fixing ring with the threaded hole reserved on the upper cover of the hydraulic recuperator cylinder, pass the fixing screw through the connecting hole and threadedly connect it to the threaded hole reserved on the upper cover of the hydraulic recuperator cylinder, and fix it with the tightening nut, turn the rotating handle to loosen the upper cover of the hydraulic recuperator cylinder, and then remove the upper cover of the hydraulic recuperator cylinder.

[0004] The disassembly and assembly tool for the hydraulic recoiler cylinder upper cover disclosed in the above utility model is achieved by fixing a fixing part (fixing ring) on ​​the end face of the object to be disassembled (the hydraulic recoiler cylinder upper cover), and then arranging a plurality of connecting parts on the circumferential side of the fixing ring. The connecting parts and the fixing ring are an integrated structure, and a rotating handle is arranged on the connecting part. By rotating the rotating handle, the fixing ring is driven to rotate, and then the object to be disassembled is driven to rotate, so that the object to be disassembled is loosened, thereby removing the object to be disassembled. This disassembly tool is also suitable for convenient and quick removal of the valve core pressure cover of the electric angle throttle valve. However, although the above-mentioned disassembly and assembly tool for the hydraulic recuperator cylinder cover can be used to disassemble the valve core pressure cover of the electric angle throttle valve without causing damage to the valve core and the valve stem, it exerts a force in the circumferential direction of the fixed ring to drive the fixed ring to rotate and then drive the object to be disassembled to rotate. The circumferential dimension is relatively large. When performing maintenance and servicing on the electric angle throttle valve in daily work, it is sometimes not necessary to remove the entire throttle valve from the pipeline for inspection. It is only necessary to take out the valve core for inspection, maintenance and servicing. Since the valve body is blocked by other objects such as pipelines and the circumferential dimension is relatively large, it will be inconvenient to install and inconvenient to operate after installation. Utility Model Content

[0005] The purpose of the utility model is to provide a tool for quickly disassembling the valve core cover of an electric angle throttle valve, so as to solve the problem that the disassembly and assembly tools used for the upper cover of the hydraulic recuperator cylinder in the prior art have large circumferential dimensions and are inconvenient to install when disassembling the valve core cover of the electric angle throttle valve, and are inconvenient to operate after installation.

[0006] In order to achieve the above-mentioned purpose, the tool for quickly disassembling the valve core gland of the electric angle throttle valve provided by the utility model adopts the following technical solutions:

[0007] A tool for quickly disassembling the valve core gland of an electric angle throttle valve, comprising a fixing part, the fixing part is provided with a center hole, the diameter of the center hole is not less than the diameter of the valve stem, the fixing part is provided with a valve stem sleeve for the valve stem to extend into at a position corresponding to the center hole, the valve stem sleeve is provided with a screwing portion, and the valve stem sleeve on the fixing part is provided with connecting holes around the valve stem sleeve for matching with the reserved threaded holes on the end face of the valve core gland so that the fixing bolts can pass through and be screwed into the valve core gland.

[0008] Beneficial effects: The utility model improves the disassembly and assembly tools for the upper cover of the hydraulic cylinder of the hydraulic lifter in the prior art. A center hole is set on the fixing part, and a valve stem sleeve corresponding to the position of the center hole is provided on the fixing part for the valve stem to extend into. The valve stem can extend into the valve stem sleeve by designing the diameter of the center hole and the inner diameter of the valve stem sleeve. The fixing part is fixed to the valve core gland by the fixing bolt, and the valve stem sleeve screwing part is rotated. The rotation of the valve stem sleeve drives the fixing part to rotate, and the rotation of the fixing plate drives the fixing bolt to rotate. The rotation of the fixing bolt drives the valve core gland to rotate, thereby loosening the valve core gland and removing the valve core gland smoothly. Compared with the prior art, the circumferential force near the edge of the fixing ring in the prior art is converted into the circumferential force near the center of the fixing part, which reduces the circumferential size of the entire device and makes the installation and operation of the entire device more convenient when there are pipelines around the valve body.

[0009] Furthermore, the connecting hole is a threaded hole.

[0010] Furthermore, the fixing member is a fixing plate.

[0011] Furthermore, the screwing portion is a wrench coupling portion.

[0012] Furthermore, the wrench coupling portion is located at the end of the valve stem sheath.

[0013] Furthermore, the wrench coupling portion includes a hexagonal prism and an external thread on the valve stem sleeve close to the hexagonal prism.

[0014] Furthermore, the external thread on the valve stem sleeve near the hexagonal prism is located inside the hexagonal prism.

[0015] Furthermore, the fixing plate and the valve stem sleeve are an integral structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional exploded view of an embodiment of a tool for quickly disassembling a valve core gland of an electric angle throttle valve according to the utility model in a use state;

[0017] Figure 2 for Figure 1 There is no schematic diagram of the valve stem sheath being assembled in the embodiment.

[0018] In the figure: 1 is the base, 2 is the valve core gland, 201 is the reserved threaded hole of the valve core gland, 3 is the valve stem, 4 is the fixing plate, 401 is the valve stem sleeve, 402 is the wrench joint, 403 is the external thread, 404 is the fixing bolt, 405 is the connecting hole, and 406 is the center hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] The present invention is further described in detail below in conjunction with the embodiments.

[0021] The prior art discloses a technical solution for quickly disassembling the object to be disassembled by fixing a fixing ring (fixing part) on the end face of the object to be disassembled (the upper cover of the hydraulic recoiler cylinder), arranging a plurality of connecting parts in the circumferential direction of the fixing ring, and arranging a rotating handle on the connecting part. The rotating handle drives the fixing ring to rotate and then drives the object to be disassembled to rotate. The above-mentioned technical solution for disassembling the upper cover of the hydraulic recoiler cylinder can also be applied to the rapid disassembly of the valve core pressure cover of the electric angle throttle valve. However, in the above-mentioned technical solution, a plurality of connecting parts are arranged in the circumferential direction of the fixing ring, and a rotating handle is arranged on the connecting part, so that the circumferential dimension of the entire device is relatively large. In the specific use process, when the space around the object to be disassembled is narrow and blocked by other objects, the entire device is inconvenient to install due to the large circumferential dimension of the entire device.

[0022] The utility model proposes an improved technical solution for the problems existing in the above technical solutions. The concept of the utility model is that a center hole is set at the center of the fixing part, a valve stem sleeve for the valve stem to extend into is set at a position on the fixing part corresponding to the position of the center hole, and a connecting hole for matching with the reserved threaded hole on the end face of the valve core gland is set around the valve stem sleeve on the fixing part, so that the fixing bolt can pass through and screw into the valve core gland, and the fixing part is connected to the valve core gland by the fixing bolt, and the size and position of the center hole in the center of the fixing part and the valve stem sleeve are designed so that the valve stem can extend into the valve stem sleeve, and a screwing part is provided on the valve stem sleeve, and the screwing part on the valve stem sleeve is rotated, and the rotation of the valve stem sleeve drives the fixing plate to rotate, and the rotation of the fixing plate drives the valve core gland to rotate, so that the valve core gland is loosened, and the valve core gland can be removed conveniently and quickly. Compared with the prior art, by converting the circumferential force near the edge of the fixing ring in the prior art into the circumferential force near the center of the fixing part, the circumferential size of the entire device is reduced. In actual use, when the space around the object to be disassembled is narrow and blocked by other objects, installation is more convenient and operation is also more convenient after installation.

[0023] Based on the above invention concept, Figure 2 As shown, the tool for quickly disassembling the valve core gland of the electric angle throttle valve of the utility model includes a fixing member 4, on which a center hole 406 is provided. The center hole 406 is not less than the diameter of the valve stem 3 to ensure that the valve stem 3 can be smoothly inserted into the center hole 406. Figure 1 As shown, the fixing member 4 is provided with a valve stem sheath 401 corresponding to the position of the center hole 406 for the valve stem 3 to extend into, and the fixing member 4 and the valve stem sheath 401 are an integral structure. When the valve stem sheath 401 rotates, the fixing member 4 can rotate together with it. Figure 1In the embodiment, the fixing member 4 and the valve stem sleeve 401 are connected as a whole by welding. In other embodiments, the fixing member 4 and the valve stem sleeve 401 can also be connected by threaded connection, key connection or other connection methods to ensure that the force acting on the valve stem sleeve can be smoothly transmitted to the fixing member 4 so that the valve stem sleeve 401 can rotate together with the fixing member 4. In the embodiment where the fixing member 4 and the valve stem sleeve 401 are connected by threads, when the valve stem sleeve 401 is driven by a threaded wrench, the rotation direction of the threaded wrench needs to be consistent with the tightening direction of the valve stem sleeve 401. The valve stem sleeve 401 is provided with a screwing portion, and the fixing member 4 is provided with a connecting hole 405 around the valve stem sleeve 401 for matching with the reserved threaded hole on the end face of the valve core gland 2, so that the fixing bolt can pass through and screw into the valve core gland 2. The fixing bolt 404 passes through the connecting hole 405 and is screwed into the threaded hole 201 reserved on the valve core gland 2 to fix the fixing part 4 on the valve core gland end face 2. The valve stem sleeve 401 is rotated. The rotation of the valve stem sleeve 401 drives the fixing part 4 to rotate. The rotation of the fixing part 4 drives the fixing bolt 404 to rotate. The rotation of the fixing bolt 404 drives the valve core gland 2 to loosen, thereby smoothly removing the valve core gland 2.

[0024] exist Figure 1 In the embodiment, the connection hole 405 is a threaded hole. When the valve stem sheath 401 is rotated, the rotation of the valve stem sheath 401 drives the fixing member 4 to rotate, and the rotation of the fixing member 4 drives the fixing bolt 404 to rotate. At this time, the contact between the connection hole 405 and the fixing bolt 404 generates an interaction force, which can ensure that the thread of the fixing bolt 404 will not be crushed when the fixing bolt 404 is subjected to a large load. In other embodiments, the connection hole 405 can also be a plain hole, and the connection hole 405 being a threaded hole is only one of the preferred solutions.

[0025] like Figure 2 As shown, three threaded holes 201 are evenly distributed on the end surface of the valve core gland 2, three connecting holes 405 that are compatible with the three threaded holes 201 on the end surface of the valve core gland 2 are evenly distributed on the fixing plate 4, and the fixing member 4 is fixed to the end surface of the valve core gland 2 by fixing bolts 404. In other embodiments, in order to meet specific use requirements, the number of connecting holes 405 on the fixing member 4 is consistent with the number of threaded holes 201 reserved on the valve core gland 2.

[0026] like Figure 1 As shown, the fixing member 4 is a fixing plate. When the screwing part of the valve stem sheath 401 is rotated, the fixing member 4 is driven to rotate, and the fixing member 4 rotates to drive the fixing bolt 404 to rotate. As a preferred solution of the utility model, the plate-like structure can better transmit the force transmitted on the valve stem sheath 401 to the fixing bolt 404, and the valve stem sheath 401 can be directly set on the fixing plate, reducing the parts of the entire device and making it more portable. In other embodiments, the fixing member 4 can also be other structures such as a fixing ring.

[0027] The valve stem sleeve 401 is provided with a screwing portion, and the screwing portion on the valve stem sleeve 401 can be directly rotated to drive the fixing member 4 to rotate. In other embodiments, a through stop hole can also be provided on the valve stem sleeve 401 to allow the solid rod to pass through the stop hole, and the solid rod can be rotated to drive the valve stem sleeve 401.

[0028] As a preferred embodiment, the screwing portion is a wrench coupling portion, which can be driven by a tool such as a wrench. Preferably, the wrench coupling portion is located at the end of the valve stem sheath 401. When the space around the valve body is small, the valve stem sheath 401 is driven in the axial direction by rotating the end of the valve stem sheath 401 with a wrench, making the entire device more convenient to use. Preferably, the wrench coupling portion includes a hexagonal prism and an external thread on the valve stem sheath near the hexagonal prism. The main function of the hexagonal prism 402 is to facilitate the rotation of the valve stem sheath 401 by common tools such as ordinary wrenches when disassembling the electric angle throttle valve core gland 2, making the operation more convenient. In other embodiments, in order to meet the use requirements, the hexagonal prism can also be changed to other shapes such as a pentagonal prism. An external thread 403 is provided on the circumference of the valve stem sheath 401 near the hexagonal prism, which is convenient for rotating the valve stem sheath 401 by a threaded wrench, making the driving method of the valve stem sheath 401 more flexible. In other embodiments, the external thread may not be used, and an internal hexagon or pentagon may be provided at the end of the hexagonal prism, and then the valve stem sheath 401 is rotated by a wrench. Preferably, the external thread near the hexagonal prism on the valve stem sheath 401 is located on the inner side of the hexagonal prism to prevent the external thread near the hexagonal prism on the valve stem sheath from being damaged by collision and affecting the service life. The external thread near the hexagonal prism on the valve stem sheath is located on the inner side of the hexagonal prism to provide a certain degree of protection. In other embodiments, the external thread near the hexagonal prism on the valve stem sheath may also be on the outer side of the hexagonal prism.

Claims

1. A tool for quickly disassembling a valve core gland of an electric angle throttle valve, comprising a fixing member, characterized in that: The fixing part is provided with a center hole, the diameter of the center hole is not less than the diameter of the valve stem, the fixing part is provided with a valve stem sleeve for the valve stem to extend into at a position corresponding to the center hole, the valve stem sleeve is provided with a screwing portion, and the fixing part is provided with connecting holes around the valve stem sleeve for matching with the reserved threaded holes on the end face of the valve core gland so that the fixing bolts can pass through and be screwed into the valve core gland.

2. The tool for quickly disassembling the valve core gland of the electric angle throttle valve according to claim 1, characterized in that: The connecting hole is a threaded hole.

3. The tool for quickly disassembling the valve core gland of the electric angle throttle valve according to claim 1, characterized in that: The fixing member is a fixing plate.

4. The tool for quickly disassembling the valve core gland of an electric angle throttle valve according to any one of claims 1 to 3, characterized in that: The screwing portion is a wrench coupling portion.

5. The tool for quickly disassembling the valve core gland of the electric angle throttle valve according to claim 4, characterized in that: The wrench coupling portion is located at the end of the valve stem sheath.

6. The tool for quickly disassembling the valve core gland of the electric angle throttle valve according to claim 5, characterized in that: The wrench coupling portion comprises a hexagonal prism and an external thread on the valve stem sheath close to the hexagonal prism.

7. The tool for quickly disassembling the valve core gland of the electric angle throttle valve according to claim 6, characterized in that: The external thread on the valve stem protective sleeve close to the hexagonal prism is located inside the hexagonal prism.

8. The tool for quickly disassembling the valve core gland of the electric angle throttle valve according to claim 3, characterized in that: The fixing plate and the valve stem sleeve are an integral structure.

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