Pulling-out tool for guide sleeve of safety valve of pressure stabilizer

Abstract

The utility model discloses a pressure stabilizer safety valve guide sleeve pulling-out tool which comprises a supporting frame, a lifting mechanism, a first locking assembly and a second locking assembly, the supporting frame makes contact with the surface of a safety valve, the lifting mechanism is connected to the supporting frame in a sliding mode, and the second locking assembly is detachably connected to the lifting mechanism and abuts against the supporting frame. The lifting mechanism comprises a connecting piece, an expansion piece and a tensioning piece, the connecting piece is connected to the supporting frame in a sliding mode, the expansion piece is flexibly or rotationally connected to the connecting piece, the tensioning piece is connected into the connecting piece in a sliding mode, and the tensioning piece makes contact with the expansion piece when moving upwards, so that the tensioning piece extrudes the expansion piece on the inner diameter of the guide sleeve; the first locking assembly is detachably connected to the tensioning piece and abuts against the connecting piece. The tensioning piece and the expansion piece are matched with each other to take the guide sleeve out of the safety valve, abrasion to the guide sleeve in the guide sleeve taking-out process is reduced, operation is more convenient, more labor is saved for operators, the labor intensity is relieved, and the guide sleeve disassembling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulator safety valve technology, and in particular to a tool for pulling out the guide sleeve of a pressure regulator safety valve. Background Technology

[0002] The mechanical pilot valve of the power plant's voltage regulator safety valve is mounted on the HAB valve. Their seal is achieved using a guide sleeve and two graphite gaskets on each side. The pressure of the mechanical pilot valve needs to be adjusted during each refueling cycle to ensure the stability of the pressure setpoint and guarantee overpressure protection in the primary circuit. During each refueling cycle, the sealing gaskets on the guide sleeve need to be replaced to ensure a tight seal at the pressure boundary of the primary circuit.

[0003] However, since the graphite gasket needs to be sealed, it must be compressed. During this process, the guide sleeve will come into close contact with the HAB valve body, and a small amount of medium will enter the interior of the graphite gasket, causing crystallization that makes the guide sleeve difficult to disassemble. During disassembly, the guide sleeve is also prone to wear, increasing maintenance costs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a tool for pulling out the guide sleeve of a voltage regulator safety valve.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A tool for pulling out the guide sleeve of a voltage regulator safety valve is constructed, comprising: a support frame, a lifting mechanism, a first locking component, and a second locking component. The support frame is in contact with the surface of the safety valve. The lifting mechanism is slidably connected to the support frame. The second locking component is detachably connected to the lifting mechanism and presses against the support frame. The lifting mechanism includes: a connecting member, an expansion member, and a tensioning member. The connecting member is slidably connected to the support frame. The expansion member is flexibly or rotatably connected to the connecting member. The tensioning member is slidably connected inside the connecting member. When the tensioning member moves upward, it contacts the expansion member, causing the tensioning member to press the expansion member against the inner diameter of the guide sleeve. The first locking component is detachably connected to the tensioning member and presses against the connecting member.

[0006] Furthermore, the tensioning component includes a slide rod and a tensioning block. The slide rod is slidably connected within the connecting member, and the tensioning block is installed at the bottom end of the slide rod. When the slide rod moves upward, the tensioning block contacts the expansion member.

[0007] Furthermore, the tensioning block is circular, conical, or triangular.

[0008] Furthermore, the overall maximum diameter of the tensioning block when separated from the expansion member is smaller than the inner diameter of the guide sleeve, and the overall diameter of the tensioning block after contact with the expansion member is larger than the inner diameter of the guide sleeve.

[0009] Furthermore, the first locking assembly includes a first nut and a first brake block, wherein the first nut is connected to the slide rod via a threaded connection, and the first brake block is mounted on the upper part of the slide rod.

[0010] Furthermore, the expansion member has an inclined surface near the bottom end of the tensioning block.

[0011] Furthermore, the second locking assembly includes a second nut and a second brake block, the second nut being connected to the connector via a threaded pair, and the second brake block being mounted on the upper part of the connector.

[0012] Furthermore, the support frame is provided with a receiving cavity for storing the guide sleeve.

[0013] Furthermore, the bottom end of the support frame is equipped with an anti-slip pad for contacting the safety valve.

[0014] Furthermore, a rubber pad is installed on the outside of the expansion member, which contacts the inner diameter of the guide sleeve when the slide rod moves upward.

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

[0016] This application uses a support frame that contacts the surface of the safety valve, and a lifting mechanism that is slidably connected to the support frame. The lifting mechanism includes a connector, an expansion member, and a tensioning member. The connector is slidably connected to the support frame, the expansion member is flexibly or rotatably connected to the connector, and the tensioning member is slidably connected inside the connector. When the tensioning member moves upward, it contacts the expansion member, causing the tensioning member to press the expansion member against the inner diameter of the guide sleeve. The bottom end of the support frame contacts the surface of the safety valve. The lifting mechanism is located on the upper part of the support frame. When the tensioner is not in contact with the bottom end of the expansion member, the expansion member and the tensioner can extend into the inner wall of the guide sleeve together. Then, by keeping the connector and the expansion member stationary on the inner diameter of the guide sleeve, the tensioner is moved upward so that it contacts the bottom end of the expansion member. The upward-moving tensioner will squeeze the expansion member, causing it to press against the inner diameter of the guide sleeve. Then, the tensioner, expansion member, and connector are lifted upward together, allowing the tensioner and expansion member to cooperate to remove the guide sleeve from the safety valve. This reduces wear on the guide sleeve during removal, makes operation easier, saves labor for operators, reduces labor intensity, and improves the efficiency of disassembling the guide sleeve. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] In the attached image:

[0019] Figure 1 This is a cross-sectional view of the installation position of a pressure regulator safety valve guide sleeve pull-out tool in some embodiments of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the pressure regulator safety valve guide sleeve removal tool in this utility model;

[0021] Figure 3 This is a structural schematic diagram of the tensioning component in this utility model;

[0022] Figure 4 This is a structural schematic diagram of the connector and expansion component in this utility model.

[0023] Explanation of markings in the diagram

[0024] Support frame 1, lifting mechanism 2, connector 21, expansion member 22, tensioning member 23, slide rod 231, tensioning block 232, inclined surface 24, rubber pad 25, safety valve 3, guide sleeve 4, first locking assembly 5, first nut 51, first brake block 52, second locking assembly 6, second nut 61, second brake block 62, receiving cavity 7, anti-slip pad 8. Detailed Implementation

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0026] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0028] Please see Figures 1 to 2 The first embodiment of this utility model provides a tool for pulling out the guide sleeve of a voltage regulator safety valve, comprising: a support frame 1, a lifting mechanism 2, a first locking component 5, and a second locking component 6. The support frame 1 is in contact with the surface of the safety valve 3, the lifting mechanism 2 is slidably connected to the support frame 1, and the second locking component 6 is detachably connected to the lifting mechanism 2 and presses against the support frame 1.

[0029] The lifting mechanism 2 includes a connector 21, an expansion member 22, and a tensioning member 23. The connector 21 is slidably connected to the support frame 1. The expansion member 22 is flexibly or rotatably connected to the connector 21. The tensioning member 23 is slidably connected inside the connector 21. When the tensioning member 23 moves upward, it contacts the expansion member 22, causing the tensioning member 23 to press the expansion member 22 against the inner diameter of the guide sleeve 4. The first locking assembly 5 is detachably connected to the tensioning member 23 and presses against the connector 21.

[0030] The expansion member 22 can be polygonal, circular, or arc-shaped. Polygonal expansion members 22 are easier to process and reduce manufacturing costs. Circular expansion members 22 can withstand greater compressive force and are less likely to damage the inner wall of the guide sleeve 4. Arc-shaped expansion members 22 can have a larger contact area with the guide sleeve 4, thereby increasing the friction between the expansion member 22 and the inner wall of the guide sleeve 4, thus improving disassembly efficiency and reducing wear on the guide sleeve 4.

[0031] The expansion member 22 is flexibly or rotatably connected to the connector 21. When the expansion member 22 is flexibly connected to the connector 21, the angle between the expansion member 22 and the connector 21 can be changed more easily, allowing the expansion member 22 to be more conveniently inserted into the guide sleeve 4. This makes the expansion member 22 applicable to guide sleeves 4 of more specifications, expanding its application range. When the expansion member 22 is rotatably connected to the connector 21, the connection strength between the expansion member 22 and the connector 21 is improved. The guide sleeve 4 can be more securely disassembled through the cooperation and tightening between the expansion member 22 and the tensioning member 23, and the service life of the expansion member 22 and the connector 21 is also extended.

[0032] In this application, the support frame 1 contacts the surface of the safety valve 3, and the lifting mechanism 2 is slidably connected to the support frame 1. The lifting mechanism 2 includes a connector 21, an expansion member 22, and a tensioning member 23. The connector 21 is slidably connected to the support frame 1, the expansion member 22 is flexibly or rotatably connected to the connector 21, and the tensioning member 23 is slidably connected inside the connector 21. The tensioning member 23 is moved upward by the first locking assembly 5, and the upward-moving tensioning member 23 contacts the expansion member 22, so that the tensioning member 23 squeezes the expansion member 22 onto the inner diameter of the guide sleeve 4. The bottom end of the support frame 1 contacts the surface of the safety valve 3. The lifting mechanism 2 is located on the upper part of the support frame 1. When the tensioner 23 is not in contact with the bottom end of the expansion member 22, the expansion member 22 and the tensioner 23 can extend into the inner wall of the guide sleeve 4 together. Then, by keeping the connecting member 21 and the expansion member 22 stationary on the inner diameter of the guide sleeve 4, the tensioner 23 is moved upward by the first locking assembly 5, so that the tensioner 23 contacts the bottom end of the expansion member 22. The upward-moving tensioner 23 will squeeze the expansion member 22, causing the tensioner 23 to press the expansion member 22 onto the inner diameter of the guide sleeve 4. Then, the connecting member 21 is moved upward by the second locking assembly 6, so that the connecting member 21 drives the tensioner 23 and the expansion member 22 to move upward together. Through the cooperation between the tensioner 23 and the expansion member 22, the guide sleeve 4 is removed from the safety valve 3. This reduces the wear on the guide sleeve 4 during the removal process, makes the operation easier, saves the operator effort, reduces labor intensity, and improves the efficiency of disassembling the guide sleeve 4.

[0033] The support frame 1 can provide a fulcrum for the second locking assembly 6 during the disassembly of the guide sleeve 4, allowing the operator to remove the guide sleeve 4 with less effort and improving the efficiency of disassembly.

[0034] Please see Figures 1 to 2 In some embodiments, the tensioning member 23 includes a slide rod 231 and a tensioning block 232. The slide rod 231 is slidably connected in the connector 21, and the tensioning block 232 is installed at the bottom end of the slide rod 231. When the slide rod 231 moves upward, the tensioning block 232 contacts the expansion member 22.

[0035] This application uses a slide rod 231 slidably connected within the connector 21. A tensioning block 232 is installed at the bottom end of the slide rod 231. When the slide rod 231 moves upward, the tensioning block 232 contacts the expansion member 22. The slide rod 231 is used to connect with the connector 21, enabling the disassembly of the guide sleeve 4 installed deep within the safety valve 3. Operators can more conveniently and effortlessly control the movement of the tensioning block 232 via the slide rod 231, thereby improving disassembly efficiency and further expanding the scope of application. The tensioning block 232... The position in contact with the expansion member 22 only needs to have a portion for pressing the expansion member 22 outward. The tensioning block 232 can be a round rod with ball heads at both ends installed at the bottom end of the slide rod 231. When the tensioning block 232 moves upward, the round rod with ball heads at both ends will press the expansion member 22 outward, so that the tensioning block 232 and the expansion member 22 cooperate to tighten on the inner wall of the guide sleeve 4, thereby achieving that the tensioning block 232, the expansion member 22 and the guide sleeve 4 remain relatively stationary, which facilitates the disassembly of the guide sleeve 4 and reduces labor intensity.

[0036] Please see Figures 1 to 4 In some embodiments, the tensioning block 232 is circular, conical, or triangular.

[0037] This application utilizes a tensioning block 232 that is circular, conical, or triangular. A circular tensioning block 232 can withstand greater compressive force, making the tensioning block 232 and the expansion member 22 more securely tightened on the guide sleeve 4, preventing slippage and damage to the guide sleeve 4. A conical tensioning block 232 makes it easier for the tensioning block 232 to extend into the expansion member 22, allowing the tensioning block 232 to press the expansion member 22 outward, making it easier for the operator to lift the tensioning block 232 upward. A triangular tensioning block 232 is easier to manufacture, further reducing the cost of manufacturing tools.

[0038] Please see Figures 1 to 4 In some embodiments, the overall maximum diameter of the tension block 232 when it separates from the expansion member 22 is smaller than the inner diameter of the guide sleeve 4, and the overall diameter of the tension block 232 after it comes into contact with the expansion member 22 is larger than the inner diameter of the guide sleeve 4.

[0039] This application utilizes a design where the maximum diameter of the tensioning block 232 when separated from the expansion member 22 is smaller than the inner diameter of the guide sleeve 4, and the maximum diameter of the tensioning block 232 after contact with the expansion member 22 is larger than the inner diameter of the guide sleeve 4. When the maximum diameter of the tensioning block 232 when separated from the expansion member 22 is smaller than the inner diameter of the guide sleeve 4, the operator can more easily lower the tensioning block 232 and the expansion member 22 into the guide sleeve 4, improving the efficiency of installing the tool in the standard position. The maximum diameter of the tensioning block 232 after contact with the expansion member 22 is larger than the inner diameter of the guide sleeve 4, generating greater compressive force when the tensioning block 232 presses the expansion member 22 onto the guide sleeve 4. This results in greater friction between the expansion member 22 and the guide sleeve 4, making the tensioning more secure, reducing wear on the guide sleeve 4 during lifting, maintaining the integrity of the guide sleeve 4, and facilitating disassembly of the guide sleeve 4 by the operator.

[0040] Please see Figures 1 to 4 In some embodiments, the first locking assembly 5 includes a first nut 51 and a first brake block 52. The first nut 51 is connected to the slide bar 231 by a threaded pair, and the first brake block 52 is installed on the upper part of the slide bar 231.

[0041] This application uses a first nut 51 connected to a slide rod 231 via a threaded connection, and a first brake block 52 installed on the upper part of the slide rod 231. When the connecting piece 21 remains stationary on the support frame 1, the operator can hold the first brake block 52 by hand or with a wrench to prevent the tensioning member 23 from rotating. Then, the operator can rotate the first nut 51, causing the slide rod 231 to slide upward through the threaded connection between the first nut 51 and the slide rod 231. The upward sliding of the slide rod 231 will cause the tensioning block 232 to move upward, bringing the tensioning block 232 into contact with the expansion member 22. By rotating the first nut 51, the tensioning block 232 is lifted and moved upward. The operator can more easily press the tensioning block 232 against the inner wall of the guide sleeve 4, further ensuring that the tensioning block 232 and the expansion member 22 are firmly tightened inside the guide sleeve 4, increasing the friction between the expansion member 22 and the guide sleeve 4, making the operation more labor-saving and reducing labor intensity.

[0042] Please see Figures 1 to 4 In some embodiments, the expansion member 22 is provided with a slope 24 near the bottom end of the tensioning block 232.

[0043] This application provides an inclined surface 24 at the bottom end of the expansion member 22 near the tensioning block 232. The inclined surface 24 makes it easier for the tensioning block 232 to contact the expansion member 22, and the contact between the tensioning block 232 and the expansion member 22 is smoother, reducing the wear of the tensioning block 232 on the expansion member 22, thereby extending its service life and reducing maintenance costs.

[0044] Please see Figures 1 to 4 In some embodiments, the second locking assembly 6 includes a second nut 61 and a second brake block 62, wherein the second nut 61 is connected to the connector 21 by a threaded pair, and the second brake block 62 is mounted on the upper part of the connector 21.

[0045] This application uses a second nut 61 connected to the connector 21 via a threaded connection. A second brake block 62 is installed on the upper part of the connector 21. After the tensioning block 232 firmly presses the expansion member 22 against the inner wall of the guide sleeve 4, the bottom of the first nut 51 contacts the top of the connector 21, preventing the tensioning member 23 from sliding up and down within the connector 21. The operator can then hold the second brake block 62 by hand or with a wrench, preventing the connector 21 connected to the second brake block 62 from rotating on the support frame 1. The operator can then rotate the second nut 61... The second nut 61 drives the connecting piece 21 to move upward through the threaded pair. The upward movement of the connecting piece 21 will drive the expansion piece 22, the tensioning block 232 and the squeezed guide sleeve 4 to move upward together. This allows the operator to remove the guide sleeve 4 from the safety valve 3 with less effort. The vertical upward lifting force also ensures that the guide sleeve 4 is evenly stressed when it is removed from the safety valve 3, preventing the guide sleeve 4 from deflecting. This reduces wear on the installation position and the guide sleeve 4, further improves the integrity of the guide sleeve 4 and the installation position, and extends the service life of the entire device.

[0046] Please see Figures 1 to 4 In some embodiments, the support frame 1 is provided with a receiving cavity 7 for storing the guide sleeve 4.

[0047] This application provides a receiving cavity 7 on the support frame 1 for storing the guide sleeve 4. The receiving cavity 7 allows the guide sleeve 4 to be removed from the safety valve 3 more smoothly without the support frame 1 blocking the removal outlet of the guide sleeve 4. By providing the receiving cavity 7 on the support frame 1, the support frame 1 can also be set as a cylinder with the receiving cavity 7 in the center. As a result, the entire support frame 1 can withstand greater compressive force and can remove the guide sleeve 4 from the safety valve 3 more stably, thereby improving the removal efficiency and extending the service life.

[0048] Please see Figures 1 to 4 In some embodiments, the bottom end of the support frame 1 is equipped with an anti-slip pad 8 for contacting the safety valve 3.

[0049] This application installs an anti-slip pad 8 at the bottom of the support frame 1 for contact with the safety valve 3. The anti-slip pad 8 can prevent slippage between the support frame 1 and the safety valve 3, making it easier for operators to operate, improving the stability when disassembling the guide sleeve 4, reducing the wear of the support frame 1 on the safety valve 3 during disassembly, making the outer surface of the safety valve 3 more aesthetically pleasing, and reducing maintenance costs.

[0050] Please see Figures 1 to 4 In some embodiments, an expansion member 22 is fitted with a rubber pad 25 that contacts the inner diameter of the guide sleeve 4 when the slide rod 231 moves upward.

[0051] This application installs a rubber pad 25 on the outside of the expansion member 22, which contacts the inner diameter of the guide sleeve 4 when the slide rod 231 moves upward. The rubber pad 25 can increase the friction between the expansion member 22 and the guide sleeve 4, making the expansion member 22 and the guide sleeve 4 more firmly squeezed, which makes it easier to remove the guide sleeve 4 from the safety valve 3. The rubber pad 25 can also reduce the wear of the expansion member 22 on the guide sleeve 4, maintain the integrity of the inner wall of the guide sleeve 4, reduce maintenance costs, and reduce labor intensity.

[0052] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present utility model should fall within the scope of the claims of the present utility model.

Claims

1. A regulator safety valve guide sleeve puller tool, characterized by, The utility model relates to a safety valve support frame, including: Support frame (1), lifting mechanism (2), first locking assembly (5) and second locking assembly (6), the support frame (1) with safety valve (3) surface contact, lifting mechanism (2) sliding connection is established in support frame (1), second locking assembly (6) can be detachably connected in lifting mechanism (2) and press the support frame (1) on; The lifting mechanism (2) includes: connecting piece (21), expansion piece (22) and tightener (23), the connecting piece (21) is slidably connected to the support frame (1), the expansion piece (22) is flexibly or rotatably connected to the connecting piece (21), the tightener (23) is slidably connected in the connecting piece (21), the tightener (23) is contacted with the expansion piece (22) when moving up, the tightener (23) extrudes the expansion piece (22) on the inner diameter of the guide sleeve (4), the first locking assembly (5) is detachably connected to the tightener (23) and presses the connecting piece (21);The tightener (23) includes: slide rod (231) and tightener (232), the slide rod (231) is slidably connected in the connecting piece (21), the tightener (232) is installed at the bottom end of the slide rod (231), the slide rod (231) is contacted with the expansion piece (22) when moving up the tightener (232);The expansion piece (22) is provided with inclined plane (24) close to the bottom end of the tightener (232);The expansion piece (22) is installed with rubber pad (25) that is contacted with the inner diameter of the guide sleeve (4) when the slide rod (231) moves up.

2. The regulator safety valve guide puller tool of claim 1, wherein, The tightener (232) is circular, conical or triangular.

3. The regulator safety valve guide puller tool of claim 1, wherein, The overall maximum diameter of the tightener (232) when separated from the expansion piece (22) is less than the inner diameter of the guide sleeve (4), and the overall diameter of the tightener (232) after being contacted with the expansion piece (22) is greater than the inner diameter of the guide sleeve (4).

4. The regulator safety valve guide puller tool of claim 1, wherein, The first locking assembly (5) includes: first nut (51) and first brake block (52), the first nut (51) is connected to the slide rod (231) by a threaded pair, the first brake block (52) is installed on the upper part of the slide rod (231).

5. The regulator safety valve guide puller tool of claim 1, wherein, The second locking assembly (6) includes: second nut (61) and second brake block (62), the second nut (61) is connected to the connecting piece (21) by a threaded pair, the second brake block (62) is installed on the upper part of the connecting piece (21).

6. The regulator safety valve guide puller tool of claim 1, wherein, The support frame (1) is provided with a containing cavity (7) for storing the guide sleeve (4).

7. The regulator safety valve guide puller tool of claim 1, wherein, The bottom end of the support frame (1) is provided with an anti-skid pad (8) for contacting the safety valve (3).

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