Butt-clamping installation tool for valve element of ball valve

Abstract

The utility model provides a ball valve element butt-clamping installation tool, and relates to the technical field of valve devices, the ball valve element butt-clamping installation tool comprises a clamping assembly, the clamping assembly comprises a centering part, a supporting part and a fastening part, the centering part comprises a first limiting part and a centering part, and a connecting part is arranged on the centering part; the first limiting part abuts against one side end of the medium flow channel, the centering part is connected with the medium flow channel in an inserted mode and is in clearance fit with the medium flow channel, and at least part of the connecting part extends out of the other side end of the medium flow channel. The supporting piece comprises a supporting pipe part and a second limiting part; the supporting pipe part is sleeved with the connecting part, inserted into the medium flow channel and in clearance fit with the medium flow channel, and the second limiting part is sleeved with the connecting part and abuts against the other side end of the medium flow channel; the fastening piece is fixedly connected with the connecting part and abuts against the supporting piece. The centering device has the beneficial effects that the structure is simple, light and convenient, operation is easy, centering of the valve element of the ball valve can be guaranteed through one-time operation, the centering effect is good, and efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of valve devices, and in particular to a ball valve core clamp installation tool. Background Art

[0002] The ball valve is a widely used valve for controlling the flow direction and flow of flowing media. Its basic structure includes a valve body, a valve cover, a ball (opening and closing part), a valve shaft, and a valve seat. A support seat is provided on the valve body. The valve seat clamps the ball from both sides to form the basic structure of the ball valve core and is accommodated in the support seat. The valve cover seals the support seat and limits the fixing of the ball valve core. Elastic parts and sealing parts are provided between the valve seat, the ball, and the support seat. One end of the valve shaft is connected to the ball and the other end extends out of the valve cover. The medium flow channel axially penetrates the ball valve and forms the two sides of the medium flow channel of the ball valve core at the outer end faces of the two valve seats. When in use, the valve shaft controls the rotation of the ball to realize the opening and closing of the valve.

[0003] A large number of ball valves are used in the flow medium pipelines of nuclear power systems. Due to the accumulation of impurities or medium in the pipelines on the seals between the ball and the valve seat, the seals are worn and fail after repeated operations, which in turn causes medium leakage. The valve core needs to be disassembled and replaced. Because the valve seat clamps the ball from both sides and has elastic parts, it needs to be removed and inserted as a whole by a clamping installation tool during disassembly and repair. The existing ball valve core clamping installation tools are mainly flat-nose pliers. Due to the narrow end faces of the flat-nose pliers, poor centering problems are prone to occur during the clamping process, resulting in unqualified parallelism of the valve seats on both sides and the formation of an opening. The valve core cannot be smoothly inserted into the valve body support seat as a whole, and multiple repeated operations are required, affecting assembly efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a ball valve core clamp installation tool with good centering effect, which solves the technical problem that existing tools cannot ensure the effective centering assembly of the valve core. The ball valve core clamp installation tool provided by the present application performs centering correction and tightening of the ball valve core through the clamping assembly, ensures that the parallelism of the ball valve core meets the tooling requirements, avoids the valve core opening, makes the assembly of the ball valve core smoother, and improves the assembly efficiency.

[0005] The technical solution adopted by the present application to solve the technical problem is: to provide a ball valve core clamp installation tool, the tool includes a clamping assembly for clamping the two side ends of the medium flow channel of the ball valve core, the clamping assembly includes:

[0006] A centering member, the centering member comprises a first limiting portion and a centering portion vertically connected to the first limiting portion, the centering portion is provided with a connecting portion; the first limiting portion abuts against one side end of the medium flow channel, the centering portion is inserted into the medium flow channel and is in clearance fit therewith, and the connecting portion at least partially extends out of the other side end of the medium flow channel;

[0007] A support member, the support member comprises a support tube portion and a second limiting portion vertically connected to the support tube portion; the support tube portion is sleeved with the connecting portion, and is inserted into the medium flow channel and is loosely matched therewith, and the second limiting portion is sleeved with the connecting portion, and abuts against the other side end of the medium flow channel;

[0008] A fastener is used to fix the connection portion and abut against the support member.

[0009] In some embodiments, the axes of the centering portion, the connecting portion, and the supporting tube portion all coincide with the axis of the medium flow channel.

[0010] In some embodiments, the fastener includes a fastening nut, the connecting portion includes a connecting screw, the fastening nut is threadedly fixedly connected to the connecting screw, and abuts against a side of the second limiting portion away from the supporting tube portion.

[0011] In some embodiments, the tool further comprises a torque arm, wherein the torque arm is detachably sleeved on the fastening nut.

[0012] In some embodiments, the torque arm is provided with a torque display component for displaying the torque magnitude.

[0013] In some embodiments, the clamping assembly further comprises a plane bearing clamped between the fastener and the support.

[0014] In some embodiments, the support member further comprises an extension tube portion sleeved with the connection portion, the extension tube portion is arranged on a side of the second limiting portion away from the support tube portion and is coaxially connected to the support tube portion;

[0015] The plane bearing is sleeved on the extension tube portion, and the thickness of the plane bearing is not less than the extension length of the extension tube portion.

[0016] In some embodiments, the extension length of the medium flow channel is L0, the extension length from the centering portion to the first limiting portion is L1, the extension length from the supporting tube portion to the second limiting portion is L2, and L0≥L1+L2.

[0017] In some embodiments, a copper coating is provided on one side of the first limiting portion and the second limiting portion that abut against the corresponding side ends of the medium flow channel.

[0018] In some embodiments, the ball valve core includes a ball and two valve seats correspondingly clamped at both ends of the ball, the medium flow channel extends to penetrate the ball and the valve seat, and the two side ends of the medium flow channel are respectively formed on the outer end surfaces of the corresponding valve seats;

[0019] The tool further comprises a positioning plate, which is detachably connected to the two valve seats along the extending direction of the medium flow channel to clamp and fix the ball.

[0020] The beneficial effects of the present application are as follows: the ball valve core clamp installation tool provided by the present application performs centering correction and tightening of the ball valve core through the clamping assembly, the first limiting portion of the centering part in the clamping assembly is vertically connected to the centering part, and the second limiting portion of the supporting part is vertically connected to the supporting tube part, and the centering part and the supporting tube part are both plugged into the medium flow channel and are gap-matched therewith, so that when the centering part and the supporting tube part are plugged into the medium flow channel, the first limiting portion and the second limiting portion can stably abut against the corresponding side ends of the medium flow channel of the ball valve core, and when the centering part and the supporting part are locked and fixed by the fastener and the connecting part, the ball valve core can be ensured to be centered in one operation, with good centering effect and high efficiency. Compared with the flat-nose pliers operation mode, the two side ends of the medium flow channel of the ball valve core will not be skewed, misplaced or opened, which is convenient for the overall disassembly and assembly of the ball valve core, and significantly improves the assembly efficiency of the ball valve core. Moreover, the ball valve core clamp installation tool provided by the present application has a simple structure, is light, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, including:

[0022] Figure 1 It is a schematic cross-sectional view of the overall structure of an existing ball valve;

[0023] Figure 2 It is a schematic diagram of the assembly structure of the ball valve core of the existing ball valve;

[0024] Figure 3 It is the clamping assembly and Figure 2 Schematic diagram of the assembly structure of the valve core of the ball valve;

[0025] Figure 4 It is a schematic diagram of the torque arm structure of the ball valve core clamp installation tool of the present application;

[0026] Figure 5 It is a schematic diagram of the assembly structure of the clamping components and positioning plate of the ball valve core clamp installation tool of the present application and the ball valve core.

[0027] In the figure: A. valve body, A1. support seat, B. valve cover, C. ball, D. valve seat, D1. positioning hole, E. valve shaft, F. elastic member, G. sealing member, G1. O-ring, H. medium flow channel, 10. ball valve core, 20. centering member, 21. first limiting part, 22. centering part, 23. connecting part, 30. supporting member, 31. supporting pipe part, 32. second limiting part, 33. extension pipe part, 40. fastener, 50. torque arm, 51. torque display assembly, 60. plane bearing, 61. plane retainer, 62. plane washer, 63. roller, 70. copper cladding, 80. positioning plate, 81. mounting hole. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. According to the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] See also Figure 1 to Figure 2 , the figure shows a common ball valve (not marked) structure, which includes a valve body A, a valve cover B, a ball C (opening and closing part), a valve seat D, and a valve shaft E. A support seat A1 is provided on the valve body A. The valve seat D flexibly clamps the ball C from both sides to form the basic structure of the ball valve core 10, and is accommodated in the support seat A1. The valve cover B seals the support seat A1 and limits the fixation of the ball valve core 10. An elastic member F and a sealing member G are provided between the valve seat D and the ball C and the support seat A1. One end of the valve shaft E is connected to the ball C, and the other end extends out of the valve cover B, which can be connected to a handle or an electric drive mechanism. In order to facilitate the explanation and understanding of the technical solution of the present application, the extension direction of the medium flow channel of the ball valve is defined as the X direction, and the extension direction of the valve shaft E is defined as the Y direction. The two ends of the X direction are defined as up and down, and the two ends of the Y direction are defined as up and down.

[0030] The medium flow channel H penetrates the ball valve along the X direction, and forms two side ends (not shown) of the medium flow channel of the ball valve core 10 at the outer end surfaces of the left and right valve seats D. When in use, the valve is opened and closed by controlling the rotation of the ball C through the valve shaft E through a handle or an electric drive mechanism.

[0031] See also Figures 2 to 3 The present application provides a ball valve core clamp installation tool, which includes a clamping assembly (not shown) for clamping the two ends of the medium flow channel of the ball valve core 10 from the left and right sides, and the clamping assembly includes a centering member 20, a support member 30 and a fastener 40. The centering member 20 includes a first limiting portion 21 and a centering portion 22 vertically connected to the first limiting portion 21, and a connecting portion 23 is provided on the centering portion 22.

[0032] During actual assembly, the first limiting portion 21 abuts against one side end of the medium flow channel H of the ball valve core 10 along the Y-direction interface. In this embodiment, the first limiting portion 21 abuts against the right side end of the medium flow channel H of the ball valve core 10 as an example for description. The centering portion 22 is inserted into the medium flow channel H from the right side along the X-direction and is gap-matched therewith, and the connecting portion 23 at least partially extends out of the other side end of the medium flow channel H.

[0033] The support member 30 includes a support tube portion 31 and a second stop portion 32 vertically connected to the support tube portion 31. During actual assembly, the support tube portion 31 is sleeved with the connection portion 23, and the medium flow channel H is inserted from the left side along the X direction and is gap-matched therewith, and the second stop portion 32 is sleeved with the connection portion 23, and abuts against the other side end of the medium flow channel H along the Y direction interface. In this embodiment, the second stop portion 32 abuts against the left side end of the medium flow channel H of the ball valve core 10 as an example for description.

[0034] The fastener 40 is fixedly connected to the connecting portion 23 and abuts against the supporting member 30 .

[0035] For details, please refer to Figures 2 to 3 The ball valve core 10 is mainly composed of a ball C, two valve seats D on the left and right sides correspondingly clamped at both ends of the ball C, and an elastic member F and a sealing member G between the corresponding valve seats D and the ball C. The two side ends of the medium flow channel H of the ball valve core 10 are respectively formed on the outer end surface of the corresponding valve seat D. Before assembling the ball valve core 10 on the support seat A1 of the valve body A, it is necessary to align and position these components along the extension direction of the medium flow channel H to ensure that the valve seats D on both sides can clamp the ball C in a parallel and relative posture, thereby ensuring that the medium flow channel H of the ball valve core 10 is corrected along the X direction, and the valve seats D are clamped from both sides to ensure that the ball valve core 10 is clamped to a suitable size along the X direction, and then assembled as a whole into the support seat A1 of the valve body A.

[0036] The ball valve core clamp installation tool provided in the present application is used to center, correct and tighten the ball valve core 10 through a clamping assembly. The first limiting portion 21 and the centering portion 22 of the centering member 20 in the clamping assembly are vertically connected, and the second limiting portion 32 and the supporting tube portion 31 of the supporting member 30 are vertically connected, and the centering portion 22 and the supporting tube portion 31 are both inserted into the medium flow channel H and are clearance-matched therewith. In this way, it is ensured that when the centering part 22 and the supporting tube part 31 are plugged into the medium flow channel H, the first limiting part 21 and the second limiting part 32 can stably abut the corresponding side ends of the medium flow channel H of the ball valve core 10 (i.e., the outer end surface of the corresponding valve seat D). When the centering part 20 and the supporting part 30 are locked and fixed by the fastener 40 and the connecting part 23, the ball valve core 10 can be ensured to be centered in one operation, so that the valve seats D on the left and right sides can clamp the ball C in a parallel and relative posture, thereby ensuring that the medium flow channel H of the ball valve core 10 is corrected along the X direction, with good centering effect and high efficiency. Compared with the flat-nose pliers operation mode, the two side ends of the medium flow channel of the ball valve core 10 will not be skewed, misplaced or opened, which is convenient for the overall disassembly and assembly of the ball valve core 10, and significantly improves the assembly efficiency of the ball valve core 10. Moreover, the ball valve core clamp installation tool provided by the present application is simple in structure, light, and easy to operate.

[0037] See also Figure 3 Preferably, the first limiting portion 21 and the second limiting portion 32 are both designed as a disc-shaped structure, and the outer diameter is preferably larger than the outer diameter of the corresponding side end of the medium flow channel H of the ball valve core 10 (that is, the outer end surface of the corresponding valve seat D), so as to ensure that the first limiting portion 21 and the second limiting portion 32 can press against the outer end surface of the corresponding valve seat D with the maximum contact area, so that in the process of clamping the ball valve core 10 by the clamping assembly, the first limiting portion 21 and the second limiting portion 32 apply force to the corresponding valve seat D evenly, ensuring that the two valve seats D can always stably clamp the ball C in a parallel and relative posture, avoiding the deviation and misalignment problems caused by uneven force on the valve seat D during the clamping process, and having higher reliability in use, further improving the clamping installation efficiency of the ball valve core 10.

[0038] Preferably, the centering portion 22 is designed as a cylindrical structure that matches the inner diameter of the medium flow channel H of the ball valve core 10, is fixedly connected to the middle of the left end surface of the first limiting portion 21, and is coaxial with the first limiting portion 21 to ensure that after the centering portion 22 is inserted into the ball valve core 10 from one side of the medium flow channel H, the first limiting portion 21 can press against the outer end surface of the corresponding valve seat D in a planar contact manner. Similarly, the supporting tube portion 31 of the supporting member 30 is designed as a cylindrical sleeve-like structure that matches the inner diameter of the medium flow channel H of the ball valve core 10, is fixedly connected to the middle of the right end surface of the second limiting portion 32, and is coaxially connected to the second limiting portion 32 to ensure that after the supporting tube portion 31 is inserted into the ball valve core 10 from the other side of the medium flow channel H, the second limiting portion 32 can press against the outer end surface of the corresponding valve seat D in a planar contact manner, and the connecting portion 23 on the centering portion 22 can extend through the supporting member 30, so that the fastener 40 can be locked and fixed thereto, and the ball valve core 10 can be clamped along the X direction through the supporting member 30 and the centering member 20, so as to realize rapid centering correction and clamping of the ball valve core 10.

[0039] Specifically, the connecting portion 23 extends from one end of the centering portion 22 away from the first limiting portion 21, and is on the same axis as the centering portion 22. Since the outer diameter of the centering portion 22 matches the inner diameter of the medium flow channel H of the ball valve core 10, and the supporting pipe portion 31 is inserted into the medium flow channel H and sleeved with the connecting portion 23, the outer diameter of the connecting portion 23 cannot be greater than the inner diameter of the supporting pipe portion 31. During assembly, the axes of the centering portion 22, the connecting portion 23, and the supporting pipe portion 31 all coincide with the axis of the medium flow channel H of the ball valve core 10, so as to ensure that the ball valve core 10 can be centered and corrected along the axis direction of the medium flow channel H.

[0040] Preferably, the outer diameter of the connecting portion 23 is half of the outer diameter of the centering portion 22, to ensure that the connecting portion has sufficient structural strength and the reliability of locking and fixing with the fastener. The inner diameter of the supporting tube 31 is slightly larger than the outer diameter of the connecting portion 23, which ensures the overall structural strength of the supporting tube 31 and facilitates the passing of the connecting portion 23.

[0041] See also Figure 3 Preferably, the fastener 40 includes a fastening nut (not marked), and the connecting portion 23 includes a connecting screw (not marked). During actual assembly, the fastening nut is threadedly fixedly connected to the connecting screw and abuts against the outer end surface of the second limiting portion 32 away from the supporting tube portion 31, thereby locking and fixing the centering member 20 and the supporting member to clamp the ball valve core 10 to a suitable size, thereby facilitating the overall assembly of the ball valve core 10 into the supporting seat A1 of the valve body A.

[0042] The fastener 40 and the connecting portion 23 are threadedly connected in the form of a fastening nut and a connecting screw. This structure is simple, convenient to tighten and loosen, has high reliability, and is also conducive to reducing the production cost of the clamping assembly.

[0043] See also Figure 4 As an example, the ball valve core clamp installation tool provided in the present application further includes a torque arm 50, which is detachably sleeved with a fastening nut. In actual use, the fastening nut can be loosened or tightened by the torque arm 50, which is convenient to operate and easy to apply force, and can ensure that the clamping assembly clamps the ball valve core 10 to a suitable degree.

[0044] Furthermore, a torque display assembly 51 for displaying the torque size is provided on the torque arm 50. The torque arm 50 may be a commercially available torque wrench, and the torque display assembly 51 is preferably an electronic display structure, or a mechanical display structure. During use, the current torque size of the fastening nut can be intuitively seen through the torque display assembly 51, which is convenient for operators to lock the fastening nut according to the standard torque, prevent the fastening nut from being over-tightened or over-loose, and avoid the clamping assembly from causing damage to the valve seat D, the ball C, the elastic member F, the sealing member G and other components during the clamping process, thereby ensuring the standardized clamping and fixing of the ball valve core 10.

[0045] See also Figure 3 and Figure 5 As a preference, the clamping assembly further includes a plane bearing 60, which is clamped between the fastener 40 and the support 30. The plane bearing 60 is a bearing that can obtain a high axial load and high rigidity in a very small space. The plane bearing 60 generally includes a plane cage 61, plane washers 62 movably connected to both sides of the plane cage 61, and rollers 63 movably arranged between the corresponding plane washers 62 and the plane cage 61. The plane washers 62 on both sides can flexibly rotate around the plane cage 61 under the action of the rollers 63.

[0046] The clamping assembly provided by the present application is provided with a plane bearing 60 between the fastener 40 and the support 30, so that the fastener 40 and the support 30 can obtain a higher axial load and rigidity, which is beneficial for the fastener 40 to lock the support 30 and the centering member 20, and ensure the clamping effect on the ball valve core 10. Moreover, during assembly, the fastener 40 and the support 30 respectively press against the plane washers 62 on both sides of the plane bearing 60, so that the tightness adjustment of the fastener 40 is smoother, which is convenient for the disassembly and assembly of the fastener 40, and improves the disassembly and assembly efficiency. In addition, the plane bearing 60 can effectively reduce the wear between the fastener 40 and the support 30, and improve the reliability and service life of the clamping assembly.

[0047] See also Figure 3 and Figure 5Preferably, the support member 30 further includes an extension tube portion 33 sleeved with the connection portion 23, the extension tube portion 33 is disposed on a side of the second limiting portion 32 away from the support tube portion 31, and is coaxially connected with the support tube portion 31. The plane bearing 60 sleeves the extension tube portion 33, and the thickness of the plane bearing 60 is not less than the extension length of the extension tube portion 33.

[0048] The extension tube portion 33 of the support member 30 provides a support and fixing foundation for the plane bearing 60, which facilitates the assembly of the plane bearing 60 with the support member 30 and the fastener 40. The thickness of the plane bearing 60 is not less than the extension length of the extension tube portion 33, which can ensure that during assembly, the fastener 40 can lock the connector until the plane washer 62 on the left side of the plane bearing 60 abuts against the fastener 40 and the plane washer 62 on the right side of the plane bearing 60 abuts against the second limit portion 32, thereby clamping the plane bearing 60 between the fastener 40 and the second limit portion 32 and locking the clamping assembly.

[0049] See also Figure 5 Preferably, the extension length of the medium flow channel H of the ball valve core 10 in the X direction is L0, the extension length from the centering portion 22 to the first limiting portion 21 in the X direction is L1, and the extension length from the supporting tube portion 31 to the second limiting portion 32 in the X direction is L2, wherein L0, L1 and L2 satisfy the following relationship: L0≥L1+L2, preferably L0>L1+L2.

[0050] The ball valve core clamp installation tool provided in the present application, by limiting the extension length of the supporting tube portion 31 and the centering portion 22, ensures that during the locking process of the fastener 40 and the connecting portion 23, the supporting member 30 and the centering member 20 can be relatively close to each other along the X-axis to clamp the ball valve core 10, thereby realizing the centering correction and clamping and fixing function of the clamping assembly on the ball valve core 10.

[0051] See also Figure 3 and Figure 5 Preferably, the first limiting portion 21 and the second limiting portion 32 are provided with a copper coating 70 on one side of the corresponding side end (ie, the outer end surface of the corresponding valve seat D) of the medium flow channel H of the ball valve core 10 .

[0052] The copper coating 70 is a layered structure made of copper material, and is respectively coated on one side of the first limiting portion 21 and the second limiting portion 32 against the outer end surface of the corresponding valve seat D. In the process of clamping the ball valve core 10, the clamping assembly contacts the outer end surface of the corresponding valve seat D through the copper coating 70, and an O-ring G1 is usually provided on the outer end surface of the valve seat D. Thanks to the ductility of the copper material, the rigid extrusion of the O-ring G1 by the clamping assembly can be slowed down, which plays a certain protective role, avoids damage and failure of the O-ring G1, and ensures the sealing effect of the ball valve core 10 after assembly.

[0053] See also Figure 2 and Figure 5 The ball valve core clamp installation tool provided in the present application also includes a positioning plate 80. During actual assembly, the positioning plate 80 is detachably connected to the two valve seats D along the extension direction of the medium flow channel H to clamp and fix the ball C.

[0054] During actual use, the valve seat D is aligned and clamped with the ball C, elastic part F, seal G and other components through the clamping assembly, and then the various components are fixed together through the positioning plate 80, so that the various components form a complete ball valve core 10 structure and prevent the elastic part F from "opening" the valve core, so as to facilitate the overall assembly of the ball valve core 10 into the support seat A1 of the valve body A.

[0055] Preferably, the two valve seats D are provided with positioning holes D1 at one end of the valve shaft E of the ball valve, and correspondingly, mounting holes 81 are provided at both ends of the positioning plate 80 corresponding to the corresponding positioning holes D1. During actual assembly, after the ball valve core 10 is centered and clamped by the clamping assembly, the positioning plate 80 can be locked and fixed on the ball valve core 10 through the mounting holes 81 and the positioning holes D1 by bolts or screws, so that the ball valve core 10 can be transported and moved as a whole under the restriction of the positioning plate 80, which is convenient for the installation of the ball valve core 10. The positioning hole D1 is preferably arranged along the Y direction so that it is perpendicular to the extension direction of the medium flow channel H, thereby ensuring that the positioning plate 80 can clamp the two valve seats D in a parallel and relative posture to the ball valve, and prevent the two valve seats D from "opening" after the positioning plate 80 is installed.

[0056] The above are only preferred implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A ball valve core clamp installation tool, characterized in that: The tool comprises a clamping assembly for clamping both side ends of a medium flow channel of a ball valve core (10), the clamping assembly comprising: A centering member (20), the centering member (20) comprising a first limiting portion (21) and a centering portion (22) vertically connected to the first limiting portion (21), the centering portion (22) being provided with a connecting portion (23); the first limiting portion (21) abuts against one side end of the medium flow channel, the centering portion (22) is inserted into the medium flow channel and is loosely matched therewith, and the connecting portion (23) at least partially extends out of the other side end of the medium flow channel; A support member (30), the support member (30) comprising a support tube portion (31) and a second limiting portion (32) vertically connected to the support tube portion (31); the support tube portion (31) is sleeved with the connection portion (23), and is inserted into the medium flow channel and is loosely matched therewith; the second limiting portion (32) is sleeved with the connection portion (23), and abuts against the other side end of the medium flow channel; A fastener (40), wherein the fastener (40) is fixedly connected to the connecting portion (23) and abuts against the supporting member (30).

2. The ball valve core clamp installation tool according to claim 1, characterized in that: The axes of the centering portion (22), the connecting portion (23), and the supporting tube portion (31) all coincide with the axis of the medium flow channel.

3. The ball valve core clamp installation tool according to claim 1, characterized in that: The fastener (40) comprises a fastening nut, the connecting portion (23) comprises a connecting screw, the fastening nut is threadedly fixedly connected to the connecting screw and abuts against a side of the second limiting portion (32) facing away from the supporting tube portion (31).

4. The ball valve core clamp installation tool according to claim 3 is characterized in that: The tool further comprises a torque arm (50), wherein the torque arm (50) is detachably sleeved on the fastening nut.

5. The ball valve core clamp installation tool according to claim 4, characterized in that: The torque arm (50) is provided with a torque display component (51) for displaying the magnitude of the torque.

6. The ball valve core clamp installation tool according to claim 1, characterized in that: The clamping assembly further comprises a plane bearing (60), wherein the plane bearing (60) is clamped between the fastener (40) and the support member (30).

7. The ball valve core clamp installation tool according to claim 6, characterized in that: The support member (30) further comprises an extension tube portion (33) sleeved on the connection portion (23); the extension tube portion (33) is arranged on a side of the second limiting portion (32) away from the support tube portion (31) and is coaxially connected to the support tube portion (31); The plane bearing (60) is sleeved on the extension tube portion (33), and the thickness of the plane bearing (60) is not less than the extension length of the extension tube portion (33).

8. The ball valve core clamp installation tool according to claim 1, characterized in that: The extension length of the medium flow channel is L0, the extension length from the centering portion (22) to the first limiting portion (21) is L1, the extension length from the supporting tube portion (31) to the second limiting portion (32) is L2, and L0≥L1+L2.

9. The ball valve core clamp installation tool according to claim 1, characterized in that: A copper coating (70) is provided on one side of the corresponding side ends of the first limiting portion (21) and the second limiting portion (32) abutting against the medium flow channel.

10. The ball valve core clamp installation tool according to claim 1, characterized in that: The ball valve core (10) comprises a ball and two valve seats correspondingly clamped at two ends of the ball, the medium flow channel extends to penetrate the ball and the valve seats, and the two side ends of the medium flow channel are respectively formed on the outer end surfaces of the corresponding valve seats; The tool further comprises a positioning plate (80), wherein the positioning plate (80) is detachably connected to the two valve seats along the extension direction of the medium flow channel so as to clamp and fix the ball.

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