Valve convenient for sealing detection

Abstract

The utility model is suitable for the technical field of valves, and provides a valve convenient for sealing detection, which comprises a valve body and a fixing mechanism, a connecting pipe body; the first mounting end cover is provided with a first through hole; the second mounting end cover is provided with a second through hole opposite to the first through hole; the first fixing piece is fixed on the first mounting end cover; the first rotary connecting piece is rotationally arranged on the first fixing piece; the second rotary connecting piece is rotationally connected with the first rotary connecting piece; the mounting rod is rotationally connected with the second rotary connecting piece and penetrates through the first through hole and the second through hole; the 90-degree turnover mechanism is arranged on the side, away from the second rotary connecting piece, of the mounting rod; the moving mechanism is used for driving the second rotating connecting piece to turn over; the first fixing piece is located on the side, close to the connecting pipe body, of the first mounting end cover, and the first rotating connecting piece is located on the side, away from the connecting pipe body, of the first fixing piece; the sealing device is convenient to disassemble and assemble for sealing detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a valve which is convenient for sealing detection. Background Art

[0002] Valves are used in pipelines to block and release the flow of liquids, gases, and even solids. Frequent valve openings and closings can lead to various malfunctions over time, significantly impacting daily life and factory operations. This necessitates valve inspections.

[0003] However, the current inspection of valves is very complicated. Since the current valves are very inconvenient to disassemble and install, it is not convenient to perform sealing inspection on the valves and to restore and install them later.

[0004] Therefore, how to provide a valve that is convenient for sealing detection is an urgent problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a valve that is convenient for sealing detection, aiming to solve the problems mentioned in the background technology.

[0006] The utility model is implemented as follows: a valve that is convenient for sealing detection, comprising:

[0007] Valve body and fixing mechanism;

[0008] A connecting pipe body, wherein the connecting pipe body is fixed on both sides of the valve body;

[0009] a first mounting end cover, the first mounting end cover being fixed to one side of the connecting pipe body, and the first mounting end cover being provided with a first through hole;

[0010] a second mounting end cover, the second mounting end cover abutting against the first mounting end cover, the second mounting end cover being provided with a second through hole opposite to the first through hole;

[0011] a first fixing member, wherein the first fixing member is fixed to the first mounting end cover;

[0012] a first rotating connecting member, the first rotating connecting member being rotatably disposed on the first fixing member;

[0013] a second rotating connection member, the second rotating connection member being rotatably connected to the first rotating connection member;

[0014] a mounting rod, the mounting rod being rotatably connected to the second rotatable connector, the mounting rod passing through the first through hole and the second through hole;

[0015] A 90-degree flip mechanism, the 90-degree flip mechanism being arranged on a side of the mounting rod away from the second rotating connecting member;

[0016] A moving mechanism is used to drive the second rotating connecting member to flip.

[0017] The first fixing member is located on a side of the first mounting end cover close to the connecting pipe body, and the first rotating connecting member is located on a side of the first fixing member away from the connecting pipe body.

[0018] Preferably, the ninety-degree flip mechanism includes:

[0019] a third rotating connecting member, wherein the third rotating connecting member is fixed to the mounting rod;

[0020] A locking member, wherein at least two locking members are provided and are evenly distributed;

[0021] a fourth rotating connecting member, the fourth rotating connecting member being fixed to the locking member and being rotatably connected to the third rotating connecting member;

[0022] A first elastic member, wherein both ends of the first elastic member are fixedly connected to the third rotating connecting member and the locking member respectively, and the first elastic member is located on a side of the third rotating connecting member away from the mounting rod.

[0023] Preferably, the retaining member is a regular polygonal plate, two retaining members are provided, and the retaining members are symmetrically distributed.

[0024] Preferably, the moving mechanism comprises:

[0025] A rotating sleeve, the rotating sleeve being rotatably arranged on the outside of the connecting pipe body;

[0026] A symmetrical eccentric wheel is mounted on a rotating sleeve, and a limiting sliding groove is provided on the circumference of the symmetrical eccentric wheel;

[0027] A first trapezoidal connecting rod, wherein one end of the first trapezoidal connecting rod with a larger outer diameter is slidably engaged with the limiting sliding groove, and the other end of the first trapezoidal connecting rod is rotatably connected to the second rotating connector.

[0028] Preferably, the fixing mechanism comprises:

[0029] An installation plate, the installation plate being fixed on the rotating sleeve;

[0030] a second fixing member, the second fixing member being fixed to the connecting tube body, and the second fixing member being provided with a clamping slot;

[0031] an elastic guide assembly, wherein the elastic guide assembly is mounted on the mounting plate;

[0032] A clamping member, the clamping member is mounted on the elastic guide assembly, and the clamping member is provided with a first guide surface along the rotation path of the rotating sleeve;

[0033] The second fixing member is provided with a disengagement component for driving the clamping member to disengage from the second fixing member.

[0034] Preferably, the elastic guide assembly comprises:

[0035] A guide sleeve, the guide sleeve being fixed on the mounting plate and being slidably connected to the clamping member;

[0036] a second elastic member, the second elastic member being disposed in the guide sleeve and used for supporting the clamping member;

[0037] The limiting slider is arranged in the guide sleeve and fixedly connected to the second elastic member. The limiting slider is fixedly connected to the clamping member. The outer diameter of the limiting slider is greater than the outer diameter of the clamping member.

[0038] Preferably, the disengagement assembly comprises:

[0039] an extrusion chute, the extrusion chute being disposed in the second fixing member and communicating with the card slot;

[0040] a second trapezoidal connecting rod, the second trapezoidal connecting rod being disposed in the extrusion chute;

[0041] a third elastic member, one end of which is fixedly connected to the inner wall of the extrusion chute, and the other end of which is fixedly connected to a side of the second trapezoidal connecting rod away from the clamping slot;

[0042] The clamping member is provided with a second guiding surface matched with the second trapezoidal connecting rod.

[0043] Preferably, the second trapezoidal connecting rod includes an extrusion block and a sliding rod, the extrusion block is slidably arranged in an extrusion sliding groove, and the sliding rod passes through the second fixing member and is fixedly connected to the extrusion block.

[0044] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging the valve body, the connecting tube body, the first mounting end cover, the second mounting end cover, the first fixing member, the first rotating connection member, the second rotating connection member, the mounting rod, the ninety-degree flip mechanism and the moving mechanism, when in use, the second rotating connection member is driven to flip through the moving mechanism, so that the second rotating connection member flips around the first fixing member and the first rotating connection member, and the second rotating connection member drives the mounting rod to move in a direction away from the valve body. At this time, the ninety-degree flip mechanism is retracted under the action of elastic force to restore to the normal state when not in use, that is, the outer diameter of the projection on the second mounting end cover is slightly larger than the outer diameter of the second through hole. At this time, pinching the ninety-degree flip mechanism allows the second mounting end cover to pass through the ninety-degree flip mechanism, and the second mounting end cover can be removed. Then, the valve body, the connecting tube body and the first mounting end cover can be tested for sealing. After the sealing test is completed, the ninety-degree flip mechanism is passed through the second through hole on the second mounting end cover. The ninety-degree flip mechanism is squeezed to shrink to an angle that abuts the inner wall of the second through hole until the ninety-degree flip mechanism passes through the second through hole. At this time, under the elastic force of the ninety-degree flip mechanism, it is extended to the normal state when not in use. The second rotating connection is driven by the moving mechanism again to move toward the direction close to the valve body. The second rotating connection drives the mounting rod to move, and the mounting rod drives the ninety-degree flip mechanism to move toward the valve body. The ninety-degree flip mechanism abuts the end face of the second mounting end cover and thus extends to an angle parallel to the end face, completing the fixation. The operation is simple and convenient, and no tools are required. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0046] Figure 1 A schematic structural diagram of a valve that facilitates sealing detection provided by an embodiment of the present utility model.

[0047] Figure 2 for Figure 1 Schematic diagram of the structure at point A.

[0048] Figure 3 for Figure 1 Schematic diagram of the structure at point B.

[0049] In the accompanying drawings: 1-valve body; 2-connecting tube body; 3-first mounting end cover; 4-second mounting end cover; 5-first fixing member; 6-first rotating connecting member; 7-second rotating connecting member; 8-mounting rod; 9-third rotating connecting member; 10-locking member; 11-fourth rotating connecting member; 12-first elastic member; 13-rotating sleeve; 14-symmetrical eccentric wheel; 15-first trapezoidal connecting rod; 16-mounting plate; 17-guide sleeve; 18-limiting slider; 19-clamping member; 20-second elastic member; 21-second fixing member; 22-extrusion slide; 23-second trapezoidal connecting rod; 24-third elastic member; 100-ninety-degree turning mechanism; 200-moving mechanism; 300-fixing mechanism; 400-disengagement component. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0051] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0052] like Figure 1 FIG. 1 is a schematic structural diagram of a valve for facilitating seal detection provided by an embodiment of the present invention, comprising:

[0053] Valve body 1;

[0054] A connecting pipe body 2, wherein the connecting pipe body 2 is fixed on both sides of the valve body 1;

[0055] a first mounting end cap 3 , which is fixed to one side of the connecting tube body 2 and is provided with a first through hole;

[0056] a second mounting end cover 4, the second mounting end cover 4 abutting against the first mounting end cover 3, the second mounting end cover 4 being provided with a second through hole opposite to the first through hole;

[0057] A first fixing member 5, wherein the first fixing member 5 is fixed to the first mounting end cover 3;

[0058] a first rotating connecting member 6 rotatably disposed on the first fixing member 5;

[0059] a second rotating connection member 7, the second rotating connection member 7 being rotatably connected to the first rotating connection member 6;

[0060] a mounting rod 8, the mounting rod 8 being rotatably connected to the second rotatable connector 7, the mounting rod 8 passing through the first through hole and the second through hole;

[0061] A ninety-degree flip mechanism 100 is provided on a side of the mounting rod 8 away from the second rotating connector 7;

[0062] The moving mechanism 200 is used to drive the second rotating connecting member 7 to flip.

[0063] In the embodiment of the present invention, when in use, the second rotating connection member 7 is driven to flip through the moving mechanism 200, so that the second rotating connection member 7 flips around the first fixing member 5 and the first rotating connection member 6, and the second rotating connection member 7 drives the mounting rod 8 to move in the direction away from the valve body 1. At this time, the ninety-degree flip mechanism 100 is retracted under the action of elastic force to restore the angle to the normal state when it is not in use, that is, the outer diameter of the projection parallel to the second mounting end cover 4 is slightly larger than the outer diameter of the second through hole. At this time, the ninety-degree flip mechanism 100 is pinched so that the second mounting end cover 4 can pass through the ninety-degree flip mechanism 100, and the second mounting end cover 4 can be removed. Then, the valve body 1, the connecting pipe body 2 and the first mounting end cover 3 can be sealed and tested. After the sealing test is completed, the valve body 1, the connecting pipe body 2 and the first mounting end cover 3 can be sealed and tested. The ninety-degree flip mechanism 100 is passed through the second through hole on the second mounting end cover 4, and the ninety-degree flip mechanism 100 is squeezed to shrink to an angle that abuts the inner wall of the second through hole until the ninety-degree flip mechanism 100 passes through the second through hole. At this time, under the elastic force of the ninety-degree flip mechanism 100, it is retracted to a normal state when not in use, and the second rotating connection member 7 is driven again by the moving mechanism 200 to move in the direction close to the valve body 1. The second rotating connection member 7 drives the mounting rod 8 to move, and the mounting rod 8 drives the ninety-degree flip mechanism 100 to move toward the valve body 1. The ninety-degree flip mechanism 100 abuts the end face of the second mounting end cover 4 and thus retracts to an angle parallel to the end face, completing the fixation. The operation is simple and convenient, and no tools are required.

[0064] In one case of this embodiment, the first fixing member 5 is located on the side of the first mounting end cover 3 close to the connecting tube body 2, and the first rotating connecting member 6 is located on the side of the first fixing member 5 away from the connecting tube body 2. This arrangement facilitates user operation.

[0065] like Figure 2 As shown, as a preferred embodiment of the present invention, the 90-degree flip mechanism 100 includes:

[0066] a third rotating connecting member 9, wherein the third rotating connecting member 9 is fixed on the mounting rod 8;

[0067] The retaining members 10 are provided with at least two retaining members 10 and are evenly distributed;

[0068] A fourth rotating connection member 11, wherein the fourth rotating connection member 11 is fixed to the retaining member 10 and is rotatably connected to the third rotating connection member 9;

[0069] The first elastic member 12 has two ends fixedly connected to the third rotating connecting member 9 and the blocking member 10 respectively. The first elastic member 12 is located on a side of the third rotating connecting member 9 away from the mounting rod 8.

[0070] In the embodiment of the present utility model, when in use, the second rotating connecting member 7 is driven to flip through the moving mechanism 200, and the second rotating connecting member 7 drives the mounting rod 8 to move in the direction away from the valve body 1. At this time, the blocking member 10 is flipped toward the mounting rod 8 under the elastic force of the first elastic member 12. The blocking member 10 flips to a point where the outer diameter of the projection on the second mounting end cover 4 is slightly larger than the outer diameter of the second through hole. At this time, the two blocking members 10 are pinched so that the second mounting end cover 4 can pass through the two blocking members 10, and the second mounting end cover 4 can be removed. Then, the valve body 1, the connecting pipe body 2 and the first mounting end cover 3 can be sealed and tested. After the sealing test is completed, the second through hole on the second mounting end cover 4 is used. The hole squeezes the locking member 10, so that the locking member 10 compresses the first elastic member 12, and the locking member 10 flips to an angle that abuts against the inner wall of the second through hole until the locking member 10 passes through the second through hole. At this time, under the elastic force of the first elastic member 12, it is stretched to a normal state, and the second rotating connection member 7 is driven again by the moving mechanism 200 to move toward the direction close to the valve body 1. The second rotating connection member 7 drives the mounting rod 8 to move, and the mounting rod 8 drives the third rotating connection member 9 and the fourth rotating connection member 11 to move toward the valve body 1. The locking member 10 abuts against the end face of the second mounting end cover 4 and flips to an angle parallel to the end face. At this time, the end faces of the two locking members 10 abut against each other and cannot continue to flip, and the fixation is completed.

[0071] In one case of this embodiment, the retaining member 10 is a regular polygonal plate, and two retaining members 10 are provided. The retaining members 10 are symmetrically distributed. During use, when the retaining member 10 is flipped to be distributed parallel to the end face of the second mounting end cover 4, the end faces of the two retaining members 10 fit together, and thus cannot be flipped further, thereby achieving a fixing effect.

[0072] like Figure 1 As shown, as another preferred embodiment of the present invention, the moving mechanism 200 includes:

[0073] A rotating sleeve 13, the rotating sleeve 13 is rotatably arranged on the outside of the connecting pipe body 2;

[0074] A symmetrical eccentric wheel 14 is mounted on the rotating sleeve 13, and a limiting sliding groove is provided on the circumference of the symmetrical eccentric wheel 14;

[0075] The first trapezoidal connecting rod 15 has an end with a larger outer diameter that is slidably engaged with the limiting sliding groove, and the other end of the first trapezoidal connecting rod 15 is rotatably connected to the second rotating connector 7.

[0076] In an embodiment of the utility model, when in use, by rotating the rotating sleeve 13, the rotating sleeve 13 drives the symmetrical eccentric wheel 14 to rotate, and the symmetrical eccentric wheel 14 drives the first trapezoidal connecting rod 15 to move due to the eccentricity of its outer diameter, and the first trapezoidal connecting rod 15 thereby drives the second rotating connecting member 7 to move, and the second rotating connecting member 7 drives the first rotating connecting member 6 and the mounting rod 8 to move, and the mounting rod 8 thereby drives the third rotating connecting member 9, the fourth rotating connecting member 11, and the blocking member 10 to move.

[0077] like Figure 3 As shown, as another preferred embodiment of the present invention, the fixing mechanism 300 includes:

[0078] An installation plate 16, wherein the installation plate 16 is fixed on the rotating sleeve 13;

[0079] A second fixing member 21, the second fixing member 21 is fixed to the connecting tube body 2, and the second fixing member 21 is provided with a slot;

[0080] an elastic guide assembly, the elastic guide assembly being mounted on the mounting plate 16;

[0081] A clamping member 19, the clamping member 19 being mounted on the elastic guide assembly, and the clamping member 19 being provided with a first guiding surface along the rotation path of the rotating sleeve 13;

[0082] The second fixing member 21 is provided with a disengagement assembly 400 for driving the clamping member 19 to disengage from the second fixing member 21 .

[0083] In an embodiment of the present invention, when in use, the rotating sleeve 13 is rotated to drive the mounting plate 16, the elastic guide assembly and the clip 19 to rotate. When the clip 19 moves to abut against the second fixing member 21, the first guide surface is limited, thereby driving the clip 19 to shrink toward the elastic guide assembly. When the clip 19 is opposite to the slot, it is nested in the slot through the elastic force of the elastic guide assembly, thereby fixing the rotating sleeve 13 and making the rotating sleeve 13 unable to rotate.

[0084] In one aspect of this embodiment, the elastic guide assembly includes:

[0085] A guide sleeve 17, which is fixed to the mounting plate 16 and is slidably connected to the clamping member 19;

[0086] A second elastic member 20 , which is disposed in the guide sleeve 17 and is used to support the clamping member 19 ;

[0087] The limiting slider 18 is arranged in the guide sleeve 17 and fixedly connected to the second elastic member 20 . The limiting slider 18 is fixedly connected to the clamping member 19 . The outer diameter of the limiting slider 18 is greater than the outer diameter of the clamping member 19 .

[0088] Specifically, when in use, the elastic force of the second elastic member 20 drives the limit slider 18 to move, and the limit slider 18 drives the clamping member 19 to slide along the guide sleeve 17. Here, the limit slider 18 also plays a limiting role to prevent the clamping member 19 from detaching from the guide sleeve 17.

[0089] like Figure 3 As shown, as another preferred embodiment of the present invention, the separation assembly 400 includes:

[0090] An extrusion chute 22, which is disposed in the second fixing member 21 and communicates with the card slot;

[0091] A second trapezoidal connecting rod 23, comprising an extrusion block and a slide rod, wherein the extrusion block is slidably disposed in the extrusion chute 22, and the slide rod passes through the second fixing member 21 and is fixedly connected to the extrusion block;

[0092] A third elastic member 24, one end of which is fixedly connected to the inner wall of the extrusion chute 22, and the other end of which is fixedly connected to the side of the second trapezoidal connecting rod 23 away from the slot;

[0093] The clamping member 19 is provided with a second guiding surface that matches the second trapezoidal connecting rod 23 .

[0094] In an embodiment of the present invention, when in use, by pressing the second trapezoidal connecting rod 23, the second trapezoidal connecting rod 23 stretches the third elastic member 24 and squeezes the second guide surface, so that the clamping member 19 overcomes the elastic force of the second elastic member 20 and moves away from the mounting plate 16. At this time, the fixation of the rotating sleeve 13 can be released.

[0095] The above embodiment of the present invention provides a valve that facilitates seal detection, achieving the following technical effects:

[0096] When in use, by rotating the rotating sleeve 13, the rotating sleeve 13 drives the symmetrical eccentric wheel 14 to rotate, and the symmetrical eccentric wheel 14 drives the first trapezoidal connecting rod 15 to move due to the eccentricity of its outer diameter, and the first trapezoidal connecting rod 15 thereby drives the second rotating connecting member 7 to move, and the second rotating connecting member 7 drives the first rotating connecting member 6 and the mounting rod 8 to move, and the mounting rod 8 thereby drives the third rotating connecting member 9, the fourth rotating connecting member 11, and the positioning member 10 to move in the direction away from the valve body 1. At this time, the positioning member 10 is in the first elastic member 1 2 is flipped toward the mounting rod 8 under the action of the elastic force of the second mounting end cover 4, and the retaining piece 10 is flipped to be parallel to the outer diameter of the projection on the second mounting end cover 4, which is slightly larger than the outer diameter of the second through hole. At this time, the two retaining pieces 10 are pinched so that the second mounting end cover 4 can pass through the two retaining pieces 10, and the second mounting end cover 4 can be removed. Then, the valve body 1, the connecting pipe body 2 and the first mounting end cover 3 can be sealed. After the sealing test is completed, the retaining piece 10 is squeezed through the second through hole on the second mounting end cover 4, so that the retaining piece 10 compresses the first The elastic member 12 and the retaining member 10 are flipped to the angle of the position abutting the inner wall of the second through hole until the retaining member 10 passes through the second through hole. At this time, under the elastic force of the first elastic member 12, the retaining member 10 is retracted to the normal state, and the second rotating connection member 7 is driven by the moving mechanism 200 to move in the direction close to the valve body 1. The second rotating connection member 7 drives the mounting rod 8 to move, and the mounting rod 8 drives the third rotating connection member 9 and the fourth rotating connection member 11 to move in the direction of the valve body 1. The retaining member 10 thereby abuts against the end surface of the second mounting end cover 4 and is flipped to the position close to the valve body 1. The angle of parallel distribution of the end faces, at this time, the end faces of the two locking members 10 abut against each other and cannot continue to flip, at the same time, the rotating sleeve 13 drives the mounting plate 16, the elastic guide assembly and the clamping member 19 to rotate, when the clamping member 19 moves to abut against the second fixing member 21, the first guide surface is limited, thereby driving the clamping member 19 to shrink toward the elastic guide assembly, and when the clamping member 19 is opposite to the card slot, it is nested in the card slot through the elastic force of the elastic guide assembly, thereby fixing the rotating sleeve 13, making the rotating sleeve 13 unable to rotate, and completing the fixing work.

[0097] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A valve that facilitates sealing detection, characterized in that: include: Valve body and fixing mechanism; A connecting pipe body, wherein the connecting pipe body is fixed on both sides of the valve body; a first mounting end cover, the first mounting end cover being fixed to one side of the connecting pipe body, and the first mounting end cover being provided with a first through hole; a second mounting end cover, the second mounting end cover abutting against the first mounting end cover, the second mounting end cover being provided with a second through hole opposite to the first through hole; a first fixing member, wherein the first fixing member is fixed to the first mounting end cover; a first rotating connecting member, the first rotating connecting member being rotatably disposed on the first fixing member; a second rotating connection member, the second rotating connection member being rotatably connected to the first rotating connection member; a mounting rod, the mounting rod being rotatably connected to the second rotatable connector, the mounting rod passing through the first through hole and the second through hole; A 90-degree flip mechanism, the 90-degree flip mechanism being arranged on a side of the mounting rod away from the second rotating connecting member; A moving mechanism is used to drive the second rotating connecting member to flip.

2. A valve for facilitating sealing detection according to claim 1, characterized in that: The ninety-degree flip mechanism includes: a third rotating connecting member, wherein the third rotating connecting member is fixed to the mounting rod; A locking member, wherein at least two locking members are provided and are evenly distributed; a fourth rotating connecting member, the fourth rotating connecting member being fixed to the locking member and being rotatably connected to the third rotating connecting member; A first elastic member, wherein both ends of the first elastic member are fixedly connected to the third rotating connecting member and the locking member respectively, and the first elastic member is located on a side of the third rotating connecting member away from the mounting rod.

3. A valve for facilitating sealing detection according to claim 2, characterized in that: The clamping piece is a regular polygonal plate, two of the clamping pieces are provided, and the clamping pieces are symmetrically distributed.

4. A valve for facilitating sealing detection according to claim 1, characterized in that: The moving mechanism comprises: A rotating sleeve, the rotating sleeve being rotatably arranged on the outside of the connecting pipe body; A symmetrical eccentric wheel is mounted on a rotating sleeve, and a limiting sliding groove is provided on the circumference of the symmetrical eccentric wheel; A first trapezoidal connecting rod, wherein one end of the first trapezoidal connecting rod with a larger outer diameter is slidably engaged with the limiting sliding groove, and the other end of the first trapezoidal connecting rod is rotatably connected to the second rotating connector.

5. A valve for facilitating sealing detection according to claim 4, characterized in that: The fixing mechanism comprises: An installation plate, the installation plate being fixed on the rotating sleeve; a second fixing member, the second fixing member being fixed to the connecting tube body, and the second fixing member being provided with a clamping slot; an elastic guide assembly, wherein the elastic guide assembly is mounted on the mounting plate; A clamping member, the clamping member is mounted on the elastic guide assembly, and the clamping member is provided with a first guide surface along the rotation path of the rotating sleeve; The second fixing member is provided with a disengagement component for driving the clamping member to disengage from the second fixing member.

6. A valve for facilitating sealing detection according to claim 5, characterized in that: The elastic guide assembly comprises: A guide sleeve, the guide sleeve being fixed on the mounting plate and being slidably connected to the clamping member; a second elastic member, the second elastic member being disposed in the guide sleeve and used for supporting the clamping member; The limiting slider is arranged in the guide sleeve and fixedly connected to the second elastic member. The limiting slider is fixedly connected to the clamping member. The outer diameter of the limiting slider is greater than the outer diameter of the clamping member.

7. A valve for facilitating sealing detection according to claim 5, characterized in that: The disengagement assembly comprises: an extrusion chute, the extrusion chute being disposed in the second fixing member and communicating with the card slot; a second trapezoidal connecting rod, the second trapezoidal connecting rod being disposed in the extrusion chute; a third elastic member, one end of which is fixedly connected to the inner wall of the extrusion chute, and the other end of which is fixedly connected to a side of the second trapezoidal connecting rod away from the clamping slot; The clamping member is provided with a second guiding surface matched with the second trapezoidal connecting rod.

8. A valve for facilitating sealing detection according to claim 7, characterized in that: The second trapezoidal connecting rod includes an extrusion block and a sliding rod. The extrusion block is slidably arranged in the extrusion sliding groove, and the sliding rod passes through the second fixing member and is fixedly connected to the extrusion block.

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