Safety valve disassembling tool

Abstract

The present application provides a safety valve disassembly tool, which comprises a frame body, a fixing table and a clamping assembly. The fixing table is connected with the frame body, the safety valve is placed on the fixing table, at least part of the fixing table is arranged in the safety valve and is in contact with the inner circumferential wall of the safety valve, the clamping assembly comprises a first clamping piece and a second clamping piece, one of the first clamping piece and the second clamping piece is connected with the frame body, the other of the first clamping piece and the second clamping piece is movable relative to the frame body along the length direction of the frame body, and the first clamping piece and the second clamping piece are used for clamping a flange connected with the safety valve, so that the safety valve is separated from the flange. The safety valve disassembly tool of the present application improves the stability and safety of the disassembly process, and reduces the risk and potential accidents in operation.

Description

Technical Field

[0001] This invention belongs to the field of industrial equipment assembly technology, specifically, it relates to a safety valve disassembly tooling. Background Technology

[0002] Safety valves are critical automatic safety protection devices installed on pressure vessels, boilers, pipelines, and other pressure-bearing equipment. Their core function is to automatically open and release excess media immediately when the system pressure abnormally rises above a predetermined set value, thereby preventing equipment from operating under overpressure and avoiding catastrophic accidents. They are indispensable safety guardians in the industrial field. To ensure the absolute reliability of this last line of defense, safety valves must be periodically removed for mandatory calibration. However, the disassembly operation itself is extremely risky because flammable, toxic, or high-temperature residual high-pressure media are often trapped at the flange connection.

[0003] In related technologies, uneven force during the disassembly of safety valves can easily lead to valve body jamming or thread damage. The flange on the valve body directly contacts the workbench during clamping, and the contact surface may be damaged during movement or clamping, resulting in media leakage during subsequent installation. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention provide a safety valve disassembly fixture, which improves the stability and safety of the disassembly process while reducing operational risks and potential accidents.

[0006] The safety valve disassembly tooling of this invention includes: Frame, A fixed platform is connected to the frame, and a safety valve is placed on the fixed platform, with at least a portion of the fixed platform located inside the safety valve and in contact with the inner peripheral wall of the safety valve. A clamping assembly, comprising a first clamping member and a second clamping member, one of which is connected to the frame, and the other of which is movable relative to the frame along the length of the frame, wherein the first clamping member and the second clamping member are used to clamp a flange connected to the safety valve so as to separate the safety valve from the flange.

[0007] The safety valve disassembly fixture of this invention ensures the stability of the safety valve during disassembly by having a fixed platform contact the inner circumferential wall of the safety valve, reducing the risk of valve body jamming or thread damage due to uneven force. The design of the clamping assembly avoids direct contact between the flange and the workbench, reducing damage caused by friction or impact, thereby lowering the possibility of media leakage during subsequent installation.

[0008] In some embodiments, the fixing platform includes a plurality of fixing bosses, which are arranged sequentially along the direction from the frame to the fixing platform, and the radial dimensions of the plurality of fixing bosses gradually decrease.

[0009] In some embodiments, the first clamping member includes a first clamping seat and a first clamping component, the first clamping seat being connected to the frame, and the first clamping component being connected to the first clamping seat. The second clamping member includes a clamping drive component and a second clamping component. The second clamping component is connected to the first clamping seat. The clamping drive component is connected to the second clamping component. The clamping drive component is used to drive the second clamping component to move relative to the first clamping seat along the length direction of the frame. The first clamping component and the second clamping component define a clamping area. The flange is placed within the clamping area.

[0010] In some embodiments, the first clamping member has a first recess located on the side of the first clamping member adjacent to the second clamping member, and the first recess is recessed in a direction away from the second clamping member; the second clamping member has a second recess located on the side of the second clamping member adjacent to the first clamping member, and the second recess is recessed in a direction away from the first clamping member.

[0011] In some embodiments, in the height direction orthogonal to the frame, the extension direction of the first recess and the extension direction of the second recess are both arc-shaped, the first clamping member and the second clamping member clamp the flange, and the center of the first recess and the center of the second recess coincide with the center of the flange.

[0012] In some embodiments, the clamping assembly further includes a first clamping pad and a second clamping pad, the first clamping pad being connected to the first clamping member and adapted to the first recess, the second clamping pad being connected to the second clamping member and adapted to the second recess, the first clamping member and the second clamping member clamping the flange, and the first clamping pad and the second clamping pad abutting against the peripheral wall of the flange.

[0013] In some embodiments, there are multiple first clamping pads, which are arranged sequentially along the direction from the first recess to the second recess; and there are multiple second clamping pads, which are arranged sequentially along the direction from the second recess to the first recess.

[0014] In some embodiments, the first clamping pad has a first protrusion and a first groove. The first protrusion is located on the side of the first clamping pad adjacent to the first recess, and the first groove is located on the side of the first clamping pad away from the first recess. The first recess has a first mating groove located on the side of the first recess adjacent to the first clamping pad. The first protrusion is used to engage within the first mating groove. Two adjacent first clamping pads are connected through the first protrusion and the first groove. The second clamping pad has a second protrusion and a second groove. The second protrusion is located on the side of the second clamping pad adjacent to the second recess, and the second groove is located on the side of the second clamping pad away from the second recess. The second recess has a second mating groove, which is located on the side of the second recess adjacent to the second clamping pad. The second protrusion is used to fit into the second mating groove. Two adjacent second clamping pads are connected by the second protrusion and the second groove.

[0015] In some embodiments, the clamping assembly further includes a first fixing member and a second fixing member, the first fixing member passing through the first clamping pad and detachably connected to the first recess, and the second fixing member passing through the second clamping pad and detachably connected to the second recess.

[0016] In some embodiments, the first end of the clamping drive component is rotatably connected to the second clamping member, and the second end of the clamping drive component passes through the first clamping member. Rotating the clamping drive component drives the second clamping member to move along the length direction of the frame. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the safety valve disassembly tooling according to an embodiment of the present invention.

[0018] Figure 2 This is an exploded view of the structure of the safety valve disassembly tooling according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the first clamping pad / second clamping pad of the safety valve disassembly tooling according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the frame structure of the safety valve disassembly fixture according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the use state of the safety valve disassembly tool according to an embodiment of the present invention.

[0022] Figure label: 100. Safety valve; 200. Connecting rod. 1. Frame, 2. Fixed platform 31. First clamping member; 311. First clamping seat; 312. First clamping component; 3121. First recess; 3122. First mating groove. 32. Second clamping member; 321. Clamping drive component; 322. Second clamping component; 3221. Second recess; 3222. Second mating groove. 313, First clamping pad; 3131, First protrusion; 3132, First groove. 323, second clamping pad; 3231, second protrusion; 3232, second groove. 314. First fastener, 324. Second fastener. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] like Figures 1-5 As shown, the safety valve disassembly fixture of this embodiment includes: a frame 1, a fixing platform 2, and a clamping assembly.

[0025] The fixed platform 2 is connected to the frame 1. The safety valve 100 is placed on the fixed platform 2, and at least a portion of the fixed platform 2 is placed inside the safety valve 100 and in contact with the inner peripheral wall of the safety valve 100.

[0026] Specifically, such as Figures 1-5 As shown, the frame 1 is the basic structure of the entire safety valve 100 disassembly fixture. The frame 1 is usually made of metal or other sturdy materials to ensure its stability and durability. The mounting platform 2 is connected to the frame 1, either directly fixed to the frame 1 or connected via brackets or connectors (such as bolts). Part of the mounting platform 2 can be placed inside the safety valve 100, or the mounting platform 2 can be completely placed inside the safety valve 100 and in contact with the inner peripheral wall of the safety valve 100.

[0027] Understandably, the mounting plate 2 can fit inside the safety valve 100, so that the safety valve 100 can maintain its original position during disassembly, reducing the risk of valve body jamming or thread damage caused by position changes.

[0028] The clamping assembly includes a first clamping member 31 and a second clamping member 32. One of the first clamping member 31 and the second clamping member 32 is connected to the frame 1, and the other of the first clamping member 31 and the second clamping member 32 is along the length direction of the frame 1 (e.g., ...). Figure 1 The first clamp 31 and the second clamp 32 are movable relative to the frame 1 in the left and right directions. They are used to clamp the flange connected to the safety valve 100 so that the safety valve 100 can be separated from the flange.

[0029] The clamping assembly includes a first clamping member 31 and a second clamping member 32, which are connected to the frame 1 via a movable device (such as a sliding rail, a connecting threaded rod, or a hydraulic system). One of the first clamping member 31 and the second clamping member 32 can move relative to each other in the left-right direction, so that the movement of the first clamping member 31 and the second clamping member 32 can accommodate flanges of different sizes and shapes.

[0030] In other words, the safety valve disassembly fixture of this embodiment of the invention ensures the stability of the safety valve 100 during disassembly by contacting the inner peripheral wall of the safety valve 100 with the fixed platform 2, reducing the risk of valve body jamming or thread damage caused by uneven force. The design of the clamping assembly avoids direct contact between the flange and the workbench, reducing damage caused by friction or impact, thereby reducing the possibility of media leakage during subsequent installation.

[0031] In some embodiments, the fixed platform 2 includes a plurality of fixed bosses, which are arranged sequentially along the direction from the frame 1 to the fixed platform 2, and the radial dimensions of the plurality of fixed bosses gradually decrease.

[0032] Specifically, such as Figures 1-5 As shown, multiple fixed bosses of different sizes are stacked sequentially from bottom to top. The fixed boss at the bottom has the largest radial dimension, and the radial dimensions of the other fixed bosses gradually decrease from top to bottom.

[0033] Understandably, the fixing boss is a cylindrical structure, and its function is to provide support and ensure the stable placement of the safety valve 100 on the fixing platform 2. Based on the shape and size of the safety valve 100, fixing bosses of different sizes are used to ensure that the safety valve 100 can be placed stably on the fixing platform 2.

[0034] In other words, the gradual reduction in the radial dimension of the fixed boss allows the fixed platform 2 to accommodate safety valves 100 of different diameters, increasing the tooling's applicability. The support provided by the fixed boss ensures that the safety valve 100 will not shift during disassembly, thus protecting its structural integrity. The gradual reduction in radial dimension may also help improve the positioning accuracy of the safety valve 100 on the fixed platform 2, reducing disassembly difficulties or damage caused by inaccurate positioning. Therefore, the arrangement of the fixed bosses offers greater design flexibility, allowing the position and number of protrusions to be adjusted according to actual needs.

[0035] In some embodiments, the first clamping member 31 includes a first clamping seat 311 and a first clamping component 312. The first clamping seat 311 is connected to the frame 1, and the first clamping component 312 is connected to the first clamping seat 311. The second clamping member 32 includes a clamping drive component 321 and a second clamping component 322. The second clamping component 322 is connected to the first clamping seat 311, and the clamping drive component 321 is connected to the second clamping component 322. The clamping drive component 321 is used to drive the second clamping component 322 to move relative to the first clamping seat 311 along the length direction of the frame 1. The first clamping component 312 and the second clamping component 322 define a clamping area, and the flange is placed in the clamping area.

[0036] Specifically, such as Figures 1-5 As shown, the first clamping member 31 consists of a first clamping seat 311 and a first clamping component 312. There are two first clamping seats 311, spaced apart in the left-right direction, and both are connected to the frame 1. The two first clamping seats 311 are connected by a connecting rod 200, ensuring the stability of the first clamping member 31 in the overall structure. The first clamping component 312 is connected to the first clamping seat 311, possibly by bolts, hinges, or other connection methods.

[0037] The second clamping member 32 consists of a clamping drive member 321 and a second clamping member 322. The second clamping member 322 is connected to the first clamping seat 311, and the clamping drive member 321 is connected to the second clamping member 322. Its function is to drive the second clamping member 322 to move along the length direction of the frame 1, so that the second clamping member 322 moves under the restriction of the first clamping seat 311.

[0038] Understandably, the clamping drive component 321 can be mechanical (such as a lead screw, gear, hydraulic, or pneumatic system) or electric, used to control the movement of the second clamping component 322. By driving the second clamping component 322, precise control of the clamping force can be achieved. The first clamping component 312 and the second clamping component 322 together define a clamping area. This clamping area is specifically designed to accommodate flanges, where the flange is the part where the safety valve 100 connects to a pipe or other equipment.

[0039] In other words, the cooperation of the first clamping component 312 and the second clamping component 322 enables precise clamping of the flange, ensuring that the flange will not move or be damaged during disassembly. The clamping drive component 321 allows the operator to adjust the clamping force as needed and to adjust the position of the clamping area according to the flange size, increasing the flexibility of the tooling. The precise positioning of the clamping area and the adjustable clamping force help prevent damage to the flange or safety valve 100 during disassembly.

[0040] In some embodiments, the first clamping member 312 has a first recess 3121 located on the side of the first clamping member 312 adjacent to the second clamping member 322, and the first recess 3121 is recessed in a direction away from the second clamping member 322. The second clamping member 322 has a second recess 3221 located on the side of the second clamping member 322 adjacent to the first clamping member 312, and the second recess 3221 is recessed in a direction away from the first clamping member 312.

[0041] Specifically, as shown in the figure, the first recess 3121 is located on the left side of the first clamping member 312, and the first recess 3121 is designed to be recessed in a direction away from the second clamping member 322. The second recess 3221 is located on the right side of the second clamping member 322, and the second recess 3221 is designed to be recessed in a direction away from the first clamping member 312.

[0042] Understandably, the symmetrical recessed structure formed by the two clamping components in the clamping area helps to evenly distribute the clamping force, thereby improving the stability and uniformity of clamping. The recessed design reduces the direct contact area between the flange and the clamping components, thus reducing friction and minimizing wear or damage caused by friction. The recessed portion provides additional positioning assistance, helping the flange to be placed more accurately within the clamping area and ensuring that the flange's centerline is aligned with the clamping components. This design may allow the clamping components some adaptability when clamping flanges, as the recessed portion can be slightly adjusted to accommodate flanges of different sizes.

[0043] In other words, when installing or removing a flange, the flange is first placed within the clamping area between the two clamping components. Due to the presence of the recess, the contact between the flange and the clamping components is more uniform, reducing localized pressure concentration and thus protecting both the flange and the clamping components. When the clamping drive component 321 applies clamping force, the recess provides additional support, ensuring that the flange does not shift or slip during clamping. The recess design also reduces noise and vibration that may occur during operation.

[0044] In some embodiments, in the height direction orthogonal to the frame 1, the extension direction of the first recess 3121 and the extension direction of the second recess 3221 are both arc-shaped. The first clamping member 31 and the second clamping member 32 clamp the flange, and the center of the first recess 3121 and the center of the second recess 3221 coincide with the center of the flange.

[0045] Specifically, such as Figures 1-5 As shown, in the horizontal plane, the extension direction of these two recesses is arc-shaped. The arc-shaped design of the recesses can provide a smoother contact surface for the flange, reducing friction and damage to the flange during clamping.

[0046] Understandably, since the centers of the first recess 3121 and the second recess 3221 coincide with the center of the flange, this ensures that the flange remains centered during clamping, reducing flange damage or inaccurate installation caused by eccentric clamping. The arc-shaped recess design helps to evenly distribute clamping force on the flange, reducing local pressure concentration and thus protecting the flange's sealing surface and structural integrity.

[0047] In some embodiments, the clamping assembly further includes a first clamping pad 313 and a second clamping pad 323. The first clamping pad 313 is connected to the first clamping member 312 and adapted to the first recess 3121. The second clamping pad 323 is connected to the second clamping member 322 and adapted to the second recess 3221. The first clamping member 31 and the second clamping member 32 clamp the flange. The first clamping pad 313 and the second clamping pad 323 abut against the peripheral wall of the flange.

[0048] Specifically, such as Figures 1-5 As shown, the first clamping pad 313 is adapted to the first recess 3121 on the first clamping member 312, ensuring that the recess is filled when clamping the flange, providing additional support and sealing. The second clamping pad 323 is adapted to the second recess 3221 on the second clamping member 322, similarly ensuring that the recess is filled when clamping the flange.

[0049] Understandably, the fitting design of the clamping gasket and the recess increases the contact area between the flange and the clamping components, thereby improving sealing and reducing the risk of media leakage. The presence of the clamping gasket increases the stability of the clamped flange because it provides additional support surface, preventing the flange from moving or rotating during clamping. The clamping gasket also reduces friction and pressure from direct contact between the flange and the clamping components, thus reducing damage to the flange caused by excessive clamping force.

[0050] In some embodiments, there are multiple first clamping pads 313, which are arranged sequentially along the direction from the first recess 3121 to the second recess 3221. There are also multiple second clamping pads 323, which are arranged sequentially along the direction from the second recess 3221 to the first recess 3121.

[0051] Specifically, such as Figures 1-5 As shown, multiple first clamping pads 313 can be stacked and arranged in a layered manner. The size of the multiple first clamping pads 313 gradually decreases along the direction from the first recess 3121 to the second recess 3221. Similarly, multiple second clamping pads 323 are also stacked and arranged in a layered manner, and the size of the multiple second clamping pads 323 gradually decreases.

[0052] Understandably, the design of multiple clamping pads allows the clamping area to accommodate flanges of different sizes, as the appropriate number and arrangement of clamping pads can be selected based on the specific dimensions and shape of the flange. The sequential arrangement of multiple clamping pads provides more precise control over the clamping force. Operators can adjust the position of the clamping components as needed, thereby increasing or decreasing the clamping force.

[0053] In some embodiments, the first clamping pad 313 has a first protrusion 3131 and a first groove 3132. The first protrusion 3131 is located on the side of the first clamping pad 313 adjacent to the first recess 3121, and the first groove 3132 is located on the side of the first clamping pad 313 away from the first recess 3121. The first recess 3121 has a first mating groove 3122, which is located on the side of the first recess 3121 adjacent to the first clamping pad 313. The first protrusion 3131 is used to engage within the first mating groove 3122. Two adjacent first clamping pads 313 are mated by the first protrusion 3131 and the first groove 3132. The second clamping pad 323 is connected to the second clamping pad 323. The second protrusion 3231 is located on the side of the second clamping pad 323 adjacent to the second recess 3221, and the second recess 3232 is located on the side of the second clamping pad 323 away from the second recess 3221. The second recess 3221 has a second mating groove 3222, which is located on the side of the second recess 3221 adjacent to the second clamping pad 323. The second protrusion 3231 is used to fit in the second mating groove 3222. Two adjacent second clamping pads 323 are connected by the second protrusion 3231 and the second groove 3232.

[0054] Understandably, the first protrusion 3131 is located on the right side of the first clamping pad 313, while the first groove 3132 is located on the left side of the first clamping pad 313. The left side wall of the first recess 3121 has a first mating groove 3122. The first protrusion 3131 can fit into the first mating groove 3122, and two adjacent first clamping pads 313 can be connected to each other through the first protrusion 3131 and the first groove 3132.

[0055] Similarly, the second protrusion 3231 is located on the left side of the second clamping pad 323, while the second groove 3232 is located on the right side of the second clamping pad 323. The right side wall of the second recess 3221 has a first mating groove 3122. The second protrusion 3231 can fit into the second mating groove 3222, and two adjacent second clamping pads 323 can be connected to each other through the second protrusion 3231 and the second groove 3232.

[0056] Understandably, the interplay of protrusions and grooves creates a robust connection between adjacent clamping pads, enhancing their overall strength and stability. The protrusion and groove design allows the clamping pads to adapt to various installation requirements, as their position and angle can be adjusted as needed. This design simplifies the installation process, as adjacent clamping pads can be quickly connected directly through the interplay of protrusions and grooves.

[0057] In some embodiments, the clamping assembly further includes a first fixing member 314 and a second fixing member 324, the first fixing member 314 passing through the first clamping pad 313 and being detachably connected to the first recess 3121, and the second fixing member 324 passing through the second clamping pad 323 and being detachably connected to the second recess 3221.

[0058] Understandably, the first fastener 314 penetrates the first clamping pad 313. The first fastener 314 is detachably connected to the first recess 3121, meaning that the first fastener 314 can be connected to the recess using bolts, nuts, pins, etc., so that the first fastener 314, the first recess 3121, and the first clamping pad 313 can be easily assembled and disassembled. Similarly, the second fastener 324 is connected to the second recess 3221 and the second clamping pad 323 to facilitate easy assembly and disassembly of the second fastener 324, the second recess 3221, and the second clamping pad 323.

[0059] In other words, the detachable connection design of the first fixing member 314 and the second fixing member 324 allows the clamping pad to be easily installed or replaced without redesigning the entire clamping assembly. During clamping, if it is necessary to adjust the clamping force or perform maintenance, the operator can quickly disassemble and reinstall the fixing members without affecting the structure of the entire clamping assembly.

[0060] In some embodiments, the first end of the clamping drive component 321 is rotatably connected to the second clamping member 32, and the second end of the clamping drive component 321 passes through the first clamping member 31. Rotating the clamping drive component 321 drives the second clamping member 32 to move along the length direction of the frame 1.

[0061] It is understood that the clamping drive component 321 can be a threaded transmission mechanism, that is, one end of the first clamping member 31 is designed with threads. When the threaded end of the clamping drive component 321 rotates, the threads interact with the threaded pair (such as a nut) on the first clamping member 31, generating axial movement. This axial movement is transmitted through the first clamping member 31 to the other end of the clamping drive component 321, thereby driving the second clamping member 32 to move in the left-right direction.

[0062] In other words, when disassembling the safety valve 100, the threaded drive mechanism can precisely control the movement of the second clamping member 32 to ensure that the flange is clamped evenly and stably. In automated or semi-automated production lines, threaded drives can be used to clamp and release components, improving production efficiency. In maintenance work that requires frequent adjustments to the clamping force, the threaded drive mechanism can quickly adjust the clamping force without the need for complex adjustment tools.

[0063] Therefore, the safety valve disassembly fixture of this embodiment provides a stable linear thrust through the clamping drive component 321 (i.e., screw) and uses the parallel connecting rods 200 to form a high-precision guiding mechanism to ensure that the second clamping component 32 moves strictly along a straight line during the movement, effectively avoiding the risk of valve body jamming and thread damage caused by uneven force in traditional disassembly.

[0064] In addition, the fixed boss on the platform of frame 1 is used to precisely support the valve body of safety valve 100. This ensures that the valve is firmly restrained in the correct position during disassembly, and its flange sealing surface is prevented from direct contact and impact with the hard platform surface, thus protecting the critical flange sealing surface from damage while ensuring operational safety.

[0065] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, an electrical connection, or a connection that allows communication between them; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0069] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A safety valve disassembly tool, characterized in that, include: Frame, A fixed platform is connected to the frame, and a safety valve is placed on the fixed platform, with at least a portion of the fixed platform located inside the safety valve and in contact with the inner peripheral wall of the safety valve. A clamping assembly, comprising a first clamping member and a second clamping member, one of which is connected to the frame, and the other of which is movable relative to the frame along the length of the frame, wherein the first clamping member and the second clamping member are used to clamp a flange connected to the safety valve so as to separate the safety valve from the flange.

2. The safety valve disassembly fixture according to claim 1, characterized in that, The fixed platform includes multiple fixed bosses, which are arranged sequentially along the direction from the frame to the fixed platform, and the radial dimensions of the multiple fixed bosses gradually decrease.

3. The safety valve disassembly fixture according to claim 1, characterized in that, The first clamping member includes a first clamping base and a first clamping component. The first clamping base is connected to the frame, and the first clamping component is connected to the first clamping base. The second clamping member includes a clamping drive component and a second clamping component. The second clamping component is connected to the first clamping seat. The clamping drive component is connected to the second clamping component. The clamping drive component is used to drive the second clamping component to move relative to the first clamping seat along the length direction of the frame. The first clamping component and the second clamping component define a clamping area. The flange is placed within the clamping area.

4. The safety valve disassembly fixture according to claim 3, characterized in that, The first clamping member has a first recessed portion located on the side of the first clamping member adjacent to the second clamping member, and the first recessed portion is recessed in a direction away from the second clamping member. The second clamping member has a second recessed portion located on the side of the second clamping member adjacent to the first clamping member, and the second recessed portion is recessed in a direction away from the first clamping member.

5. The safety valve disassembly fixture according to claim 4, characterized in that, In the height direction orthogonal to the frame, the extension direction of the first recess and the extension direction of the second recess are both arc-shaped. The first clamping member and the second clamping member clamp the flange, and the center of the first recess and the center of the second recess coincide with the center of the flange.

6. The safety valve disassembly fixture according to claim 4, characterized in that, The clamping assembly further includes a first clamping pad and a second clamping pad. The first clamping pad is connected to the first clamping member and adapted to the first recess. The second clamping pad is connected to the second clamping member and adapted to the second recess. The first clamping member and the second clamping member clamp the flange. The first clamping pad and the second clamping pad abut against the peripheral wall of the flange.

7. The safety valve disassembly fixture according to claim 6, characterized in that, There are multiple first clamping pads, and the multiple first clamping pads are arranged sequentially along the direction from the first recess to the second recess. There are also multiple second clamping pads, and the multiple second clamping pads are arranged sequentially along the direction from the second recess to the first recess.

8. The safety valve disassembly fixture according to claim 7, characterized in that, The first clamping pad has a first protrusion and a first groove. The first protrusion is located on the side of the first clamping pad adjacent to the first recess, and the first groove is located on the side of the first clamping pad away from the first recess. The first recess has a first mating groove located on the side of the first recess adjacent to the first clamping pad. The first protrusion is used to engage within the first mating groove. Two adjacent first clamping pads are connected through the engagement of the first protrusion and the first groove. The second clamping pad has a second protrusion and a second groove. The second protrusion is located on the side of the second clamping pad adjacent to the second recess, and the second groove is located on the side of the second clamping pad away from the second recess. The second recess has a second mating groove, which is located on the side of the second recess adjacent to the second clamping pad. The second protrusion is used to fit into the second mating groove. Two adjacent second clamping pads are connected by the second protrusion and the second groove.

9. The safety valve disassembly fixture according to claim 8, characterized in that, The clamping assembly further includes a first fixing member and a second fixing member. The first fixing member passes through the first clamping pad and is detachably connected to the first recess. The second fixing member passes through the second clamping pad and is detachably connected to the second recess.

10. The safety valve disassembly fixture according to claim 1, characterized in that, The first end of the clamping drive component is rotatably connected to the second clamping member, and the second end of the clamping drive component passes through the first clamping member. Rotating the clamping drive component drives the second clamping member to move along the length direction of the frame.

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