Leakage-proof pipeline valve

Abstract

The utility model discloses a leakproof pipeline valve relates to valve technical field, including valve body and install valve deck on the top of valve body, the middle of valve deck is rotatingly connected with the shaft body, the side wall of shaft body is equipped with the matching screw thread, and the shaft body passes through the matching screw thread and is equipped with the installation plate, and the installation plate is equipped with the valve deck. Mounting screws are fixedly connected to the two sides of the top of the valve deck, the outer walls of the mounting screws are sleeved with the mounting plates, fixing rings for bearing the mounting plates are arranged on the side walls of the mounting screws, and nuts located at the top of the mounting plates are mounted on the side walls of the mounting screws through internal and external threads; a first sealing sleeve is fixedly connected into a groove in the top of the valve deck and located on the outer wall of the shaft body. According to the technical scheme, the first sealing sleeve and the second sealing sleeve are arranged, the sealing pieces made of different materials are combined, multiple sealing barriers are formed, and the sealing reliability of the valve under extreme conditions is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a leak-proof pipeline valve. Background Art

[0002] In industrial pipeline systems, valves are key control components used to regulate the flow and pressure of fluids, as well as to cut off or allow fluid flow. However, under high-pressure and high-temperature conditions, traditional valves often face serious leakage problems. Leakage not only causes waste of energy and materials but also leads to safety and environmental issues. In traditional valve designs, the sealing structure often relies on a single seal, such as an O-ring or a metal sealing surface, which are prone to wear, aging, or deformation under high pressure and high temperature, thus reducing the sealing effect.

[0003] In addition, the operating mechanism of the valve usually lacks an effective pre-tightening force design. As a result, after long-term use, due to thermal expansion and contraction or mechanical wear, the original sealing pressure gradually decreases, leading to leakage. When existing valve designs face extreme working conditions, their structural stability may also be challenged. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a leak-proof pipeline valve to solve the problems in the background art.

[0005] In view of this, the utility model provides a leak-proof pipeline valve, including a valve body and a valve cover installed on the top of the valve body. A shaft body is rotatably connected to the middle of the valve cover. A matching thread is provided on the side wall of the shaft body, and an installation plate is installed on the shaft body through the matching thread. Installation screws are fixedly connected to both sides of the top of the valve cover, and the installation plate is sleeved on the outer wall of the installation screws. A fixing ring for receiving the installation plate is provided on the side wall of the installation screws. A nut located on the top of the installation plate is installed on the side wall of the installation screws through internal and external threads. A first sealing sleeve is fixedly connected to the groove on the top of the valve cover and is located on the outer wall of the shaft body. A support and stability plate is sleeved on the outer wall of the shaft body. A second sealing sleeve that supports on the top of the first sealing sleeve is fixedly connected to the bottom of the support and stability plate. Both sides of the support and stability plate are fixedly connected to the side wall of the installation screws through connection fixing plates.

[0006] Optionally, the valve cover is fixedly installed on the top of the valve body through several bolts, and a sealing ring is installed between the valve body and the valve cover.

[0007] Optionally, an installation spring is fixedly installed between the bottom of the support and stability plate and the top of the valve cover, and the installation spring is in a stretched state.

[0008] Optionally, a rotating handle is installed on the top of the shaft body, and a fixing nut for fixing the rotating handle is installed on the top of the shaft body through internal and external threads.

[0009] Optionally, one end of the shaft body is fixedly connected with a valve core for closing and opening the valve.

[0010] Optionally, the first sealing sleeve is made of flexible graphite ring, and the second sealing sleeve is made of polytetrafluoroethylene material.

[0011] Optionally, reinforcing ribs are fixedly connected to the inner wall of the valve body.

[0012] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0013] 1. For the leak-proof pipeline valve of the present invention, by setting the first sealing sleeve and the second sealing sleeve, and adopting a combination of sealing parts with different materials to form a multiple sealing barrier, the sealing reliability of the valve under extreme conditions is significantly improved.

[0014] 2. For the leak-proof pipeline valve of the present invention, by installing the spring, it is ensured that the support and stabilizing plate continuously applies a pre-tightening force to the first sealing sleeve. Even under temperature and pressure changes, the close contact between the sealing part and the shaft body can be maintained, effectively preventing leakage.

[0015] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the drawings:

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is the present invention Figure 1 the enlarged structural diagram at A in;

[0019] Figure 3 is the front view structural diagram of the present invention;

[0020] Figure 4 is the sectional structural diagram of the present invention.

[0021] Description of the reference numerals: 1. Valve body; 101. Reinforcing rib; 2. Valve cover; 3. Shaft body; 31. Matching thread; 4. Rotating handle; 5. Fixing nut; 6. Mounting screw; 7. Mounting plate; 8. Support and stabilizing plate; 81. Connecting fixing plate; 9. Second sealing sleeve; 10. First sealing sleeve; 11. Valve core; 12. Mounting spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions of the embodiments of the present utility model will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0023] The following specifically describes an anti-leakage pipeline valve according to an embodiment of the present utility model in conjunction with the drawings.

[0024] Embodiment

[0025] For the convenience of understanding, please refer to Figures 1 to 4 , an embodiment of an anti-leakage pipeline valve provided by the present utility model, including a valve body 1 and a valve cover 2 installed on the top of the valve body 1. A shaft body 3 is rotatably connected to the middle of the valve cover 2. A matching thread 31 is provided on the side wall of the shaft body 3, and a mounting plate 7 is mounted on the shaft body 3 through the matching thread 31. Installation screws 6 are fixedly connected to both sides of the top of the valve cover 2, and the mounting plate 7 is sleeved on the outer wall of the installation screws 6. A fixing ring for receiving the mounting plate 7 is provided on the side wall of the installation screw 6. A nut located on the top of the mounting plate 7 is installed on the side wall of the installation screw 6 through internal and external threads. A first sealing sleeve 10 is fixedly connected to the groove on the top of the valve cover 2, and the first sealing sleeve 10 is located on the outer wall of the shaft body 3. A support and stabilization plate 8 is sleeved on the outer wall of the shaft body 3. A second sealing sleeve 9 that supports on the top of the first sealing sleeve 10 is fixedly connected to the bottom of the support and stabilization plate 8. Both sides of the support and stabilization plate 8 are fixedly connected to the side wall of the installation screw 6 through connection fixing plates 81.

[0026] An installation spring 12 is fixedly installed between the bottom of the support and stabilization plate 8 and the top of the valve cover 2, and the installation spring 12 is in a stretched state.

[0027] It should be noted that the mounting plate 7 is sleeved on the outer wall of the installation screw 6. A fixing ring for receiving the mounting plate 7 is provided on the side wall of the installation screw 6. A nut located on the top of the mounting plate 7 is installed on the side wall of the installation screw 6 through internal and external threads, ensuring the firm fixation of the mounting plate 7. A first sealing sleeve 10 is fixedly connected to the groove on the top of the valve cover 2, and the first sealing sleeve 10 is located on the outer wall of the shaft body 3. A support and stabilization plate 8 is sleeved on the outer wall of the shaft body 3. A second sealing sleeve 9 that supports on the top of the first sealing sleeve 10 is fixedly connected to the bottom of the support and stabilization plate 8. An installation spring 12 is fixedly installed between the bottom of the support and stabilization plate 8 and the top of the valve cover 2, and the installation spring 12 is in a stretched state, so that the support and stabilization plate 8 always closely adheres to the shaft body 3, ensuring the close contact between the shaft body 3 and the first sealing sleeve 10, thereby enhancing the sealing performance of the entire system and achieving a better anti-leakage effect.

[0028] Both sides of the support and stabilizer plate 8 are fixedly connected to the side wall of the mounting screw 6 through the connecting and fixing plate 81, ensuring the stable position of the support and stabilizer plate 8 and preventing displacement caused by vibration or external forces, which may affect the sealing effect.

[0029] In some embodiments, the valve cover 2 is fixedly mounted on the top of the valve body 1 by a plurality of bolts, and a sealing ring is installed between the valve body 1 and the valve cover 2.

[0030] It should be noted that the valve cover 2 is fixedly mounted on the top of the valve body 1 by a plurality of bolts, and a sealing ring is installed between the valve body 1 and the valve cover 2 to ensure the sealing of the overall structure.

[0031] In some embodiments, a rotating handle 4 is installed on the top of the shaft body 3, and a fixing nut 5 for fixing the rotating handle 4 is installed on the top of the shaft body 3 through internal and external threads.

[0032] It should be noted that a rotating handle 4 is installed on the top of the shaft body 3, and a fixing nut 5 for fixing the rotating handle 4 is installed on the top of the shaft body 3 through internal and external threads, which is convenient for the operator to manually control the opening and closing of the valve.

[0033] Furthermore, one end of the shaft body 3 is fixedly connected to a valve core 11 for closing and opening the valve.

[0034] In some embodiments, the first sealing sleeve 10 is made of flexible graphite ring, and the second sealing sleeve 9 is made of polytetrafluoroethylene material.

[0035] It should be noted that the first sealing sleeve 10 is made of flexible graphite ring to adapt to the rotational movement of the shaft body 3 and maintain good sealing performance. The second sealing sleeve 9 is made of polytetrafluoroethylene material to further enhance the sealing performance.

[0036] In some embodiments, a reinforcing rib 101 is fixedly connected to the inner wall of the valve body 1.

[0037] It should be noted that a reinforcing rib 101 is fixedly connected to the inner wall of the valve body 1 to increase the structural strength and stability of the valve body.

[0038] Working principle: The operator drives the rotation of the shaft body 3 by rotating the handle 4. One end of the shaft body 3 is fixedly connected with a valve core 11. Therefore, the rotation of the shaft body 3 will directly drive the movement of the valve core 11, thereby controlling the opening and closing of the valve. When the shaft body 3 passes through the valve cover 2, the first sealing sleeve 10 sleeved on its outer wall plays a primary sealing role. The first sealing sleeve 10 is made of flexible graphite ring material, which can adapt to the rotational movement of the shaft body 3 and maintain good sealing performance. The second sealing sleeve 9 is made of polytetrafluoroethylene material and is fixed to the bottom of the support and stabilizer plate 8, further enhancing the sealing performance between the shaft body 3 and the valve cover 2 to prevent medium leakage.

[0039] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the present application's various embodiments.

Claims

1. A leak-proof pipeline valve, characterized in that: It includes a valve body (1) and a valve cover (2) installed on the top of the valve body (1). A shaft body (3) is rotatably connected to the middle of the valve cover (2). A matching thread (31) is provided on the side wall of the shaft body (3), and a mounting plate (7) is mounted on the shaft body (3) through the matching thread (31). On both sides of the top of the valve cover (2), mounting screws (6) are fixedly connected. The mounting plate (7) is sleeved on the outer wall of the mounting screw (6). A fixing ring for receiving the mounting plate (7) is provided on the side wall of the mounting screw (6). A nut is installed on the side wall of the mounting screw (6) through internal and external threads and is located on the top of the mounting plate (7). A first sealing sleeve (10) is fixedly connected in the groove on the top of the valve cover (2), and the first sealing sleeve (10) is located on the outer wall of the shaft body (3). A support and stabilizing plate (8) is sleeved on the outer wall of the shaft body (3). A second sealing sleeve (9) that supports on the top of the first sealing sleeve (10) is fixedly connected to the bottom of the support and stabilizing plate (8). Both sides of the support and stabilizing plate (8) are fixedly connected to the side wall of the mounting screw (6) through connecting fixing plates (81).

2. The anti-leakage pipeline valve according to claim 1, characterized in that: The valve cover (2) is fixedly installed on the top of the valve body (1) through a plurality of bolts, and a sealing ring is installed between the valve body (1) and the valve cover (2).

3. The anti-leakage pipeline valve according to claim 1, characterized in that: An installation spring (12) is fixedly installed between the bottom of the support and stabilizing plate (8) and the top of the valve cover (2), and the installation spring (12) is in a stretched state.

4. The anti-leakage pipeline valve according to claim 1, characterized in that: A rotating handle (4) is installed on the top of the shaft body (3), and a fixing nut (5) for fixing the rotating handle (4) is installed on the top of the shaft body (3) through internal and external threads.

5. The anti-leakage pipeline valve according to claim 1, characterized in that: One end of the shaft body (3) is fixedly connected to a valve core (11) for closing and opening the valve.

6. The anti-leakage pipeline valve according to claim 1, characterized in that: The first sealing sleeve (10) is made of flexible graphite ring, and the second sealing sleeve (9) is made of polytetrafluoroethylene material.

7. A leak-proof pipeline valve according to claim 1, characterized in that: Reinforcing ribs (101) are fixedly connected to the inner wall of the valve body (1).

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