A valve that can quickly repair leaks

Abstract

The present application discloses a valve that can be quickly repaired for leakage, including a valve body and a valve core. An installation hole is provided on the side wall of the valve body, and the inner end of the valve core extends into the valve body. In addition, it further includes a connecting piece, a sealing sleeve, a first sealing washer, a gland nut and a wrench. The outer bottom of the connecting piece is connected in the installation hole, the body of the valve core is threadedly connected to the inner side of the connecting piece, the sealing sleeve is sleeved on the body of the valve core, the sealing sleeve is located inside the upper end of the connecting piece, the gland nut is sleeved on the outside of the body of the valve core and is threadedly connected to the outside of the upper end of the connecting piece, and the wrench is detachably connected to the outer end of the valve core. Since when repairing the valve, only the wrench and the gland nut need to be disassembled, and the first sealing washer is added to the valve core, there is no need to replace the entire valve and the valve core, which has the advantages of convenient and fast replacement, can also reduce the repair cost. In addition, it can also repair the leakage of the valve during the use process, so as to achieve the purpose of ensuring the normal operation of the valve.

Description

Technical Field

[0001] The present application relates to the technical field of valves, and particularly to a valve that can be quickly repaired for leakage. Background Art

[0002] Valves are commonly used pipe fittings in liquid conveying pipelines. Whether in daily life or industrial fields, the use of valves is indispensable. For example, a globe valve realizes the function of liquid interception or flow by rotating the valve core so that the sealing gasket at the end of the valve core contacts or separates from the valve body. However, after long-term use, valves are prone to liquid leakage problems. Moreover, when repairing, the entire valve or the valve core needs to be replaced. In addition, when repairing, the conveying operation of the pipeline needs to be stopped, thus affecting the normal pipeline conveying operation. Summary of the Invention

[0003] The purpose of the present application is to provide a valve that can be quickly repaired for leakage, which can repair the valve online, thereby improving the repair efficiency of the valve.

[0004] To solve the above technical problems, the present application provides the following technical solutions:

[0005] A valve that can be quickly repaired for leakage, including a valve body and a valve core. An installation hole is provided on the side wall of the valve body. The inner end of the valve core extends into the valve body through the installation hole. It further includes a connecting piece, a sealing sleeve, a first sealing gasket, a gland nut, and a wrench. The outer bottom of the connecting piece is connected in the installation hole. The body of the valve core is threadedly connected to the inner side of the connecting piece. The sealing sleeve is sleeved on the body of the valve core. The sealing sleeve is located inside the upper end of the connecting piece. The gland nut is sleeved on the outside of the body of the valve core and is threadedly connected to the outside of the upper end of the connecting piece. The wrench is detachably connected to the outer end of the valve core. The first sealing gasket is used to be installed between the gland nut and the sealing sleeve when the liquid in the valve body leaks between the sealing sleeve and the valve core.

[0006] Preferably, it further includes a metal sleeve sleeved on the body of the valve core. The metal sleeve is located above the sealing sleeve. The first sealing gasket is located between the metal sleeve and the gland nut. The gland nut is used to axially press the first sealing gasket and the sealing sleeve.

[0007] Preferably, a support boss is provided inside the upper end of the connecting piece. The lower end of the metal sleeve is located inside the upper end of the connecting piece. The upper end of the metal sleeve is located outside the upper end of the connecting piece. The gland nut is used to press the sealing sleeve against the support boss through the metal sleeve.

[0008] Preferably, it further includes an inlaid nut located inside the mounting hole, and the outer lower end of the connecting piece is threadedly connected inside the inlaid nut.

[0009] Preferably, a limiting boss is provided on the outer side of the connecting piece, and the limiting boss is used to limit the further screwing of the connecting piece into the inlaid nut.

[0010] Preferably, a second sealing washer is provided between the end face of the limiting boss and the inlaid nut.

[0011] Preferably, a polygonal connecting end is provided at the outer end of the valve core, and a polygonal inner hole matching the polygonal connecting end is provided inside the wrench.

[0012] Preferably, a plug, a third sealing washer and a locking nut are provided at the inner end of the valve core. The upper end of the plug is connected to the valve core. A threaded shaft is provided at the lower end of the plug. The third sealing washer is sleeved on the threaded shaft. The locking nut is used to press the third sealing washer against the lower end of the plug. The plug and the third sealing washer move under the control of the axial movement of the valve core to open or close the valve hole in the valve body.

[0013] Compared with the prior art, the above technical solution has the following advantages:

[0014] In the process of using a valve capable of quickly repairing leaks provided by the present application, long-term rotation of the valve core will cause wear of the sealing sleeve inside the connecting piece. Therefore, the liquid in the valve body will leak from between the sealing sleeve and the valve core. At this time, the wrench can be first removed from the valve core, and then the gland nut can be removed from the connecting piece. Subsequently, the first sealing washer is added to the body of the valve core, and the first sealing washer is located above the sealing sleeve. Finally, the gland nut and the wrench are installed in sequence to block the liquid from flowing out between the sealing sleeve and the valve core. Since only the wrench and the gland nut need to be disassembled when repairing the valve, there is no need to replace the entire valve and the valve core, which not only has the advantages of convenient and fast replacement, but also can reduce the repair cost. In addition, there is no need to disassemble the valve core, so that the valve can be repaired for leaks during use, thereby achieving the purpose of ensuring the normal operation of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1A cross-sectional structural schematic diagram of a valve that can quickly repair leaks provided by a specific embodiment of the present application.

[0017] The reference numerals are as follows:

[0018] 1 is the valve body, 2 is the valve core, 3 is the wrench, 4 is the limit nut, 5 is the gland nut, 6 is the first sealing washer, 7 is the metal sleeve, 8 is the sealing sleeve, 9 is the connecting piece, 10 is the limit boss, 11 is the second sealing washer, 12 is the insert nut, 13 is the plug, 14 is the third sealing washer, 15 is the lock nut, and 16 is the valve hole. Specific embodiments

[0019] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0020] In the following description, specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0021] Please refer to Figure 1 , Figure 1 A cross-sectional structural schematic diagram of a valve that can quickly repair leaks provided by a specific embodiment of the present application.

[0022] A specific embodiment of the present application provides a valve that can quickly repair leaks, including a valve body 1 and a valve core 2. An installation hole is provided on the side wall of the valve body 1, and the inner end of the valve core 2 extends into the valve body 1 through the installation hole. In addition, it further includes a connecting piece 9, a sealing sleeve 8, a first sealing washer 6, a gland nut 5, and a wrench 3. The outer bottom of the connecting piece 9 is connected in the installation hole, the body of the valve core 2 is threadedly connected to the inner side of the connecting piece 9, the sealing sleeve 8 is sleeved on the body of the valve core 2, the sealing sleeve 8 is located inside the upper end of the connecting piece 9, the gland nut 5 is sleeved on the outside of the body of the valve core 2 and is threadedly connected to the outside of the upper end of the connecting piece 9, and the wrench 3 is detachably connected to the outer end of the valve core 2. During use, the long-term rotation of the valve core 2 will cause the sealing sleeve 8 inside the connecting piece 9 to wear, so that the liquid inside the valve body 1 will leak from between the sealing sleeve 8 and the valve core 2, and the leakage direction is as Figure 1As shown by the arrow in [description], at this time, the wrench 3 can be first removed from the valve core 2, and then the gland nut 5 can be removed from the connecting piece 9. Subsequently, the first sealing washer 6 is installed on the body of the valve core 2, and the first sealing washer 6 is located above the sealing sleeve 8. Finally, the gland nut 5 and the wrench 3 are installed in sequence to prevent liquid from flowing out between the sealing sleeve 8 and the valve core 2. The first sealing washer 6 can be a polytetrafluoroethylene or nylon sealing ring, or it can be a tape. Wrapping the tape around the body of the valve core 2 can form the first sealing washer 6. Since only the wrench 3 and the gland nut 5 need to be disassembled when repairing the valve, there is no need to replace the entire valve and the valve core 2. It not only has the advantages of being convenient and fast to replace, but also can reduce the repair cost. In addition, since there is no need to disassemble the valve core 2, the valve can be repaired for leakage during use, so as to achieve the purpose of ensuring the normal operation of the valve.

[0023] Furthermore, it also includes a metal sleeve 7 sleeved on the body of the valve core 2. The metal sleeve 7 is located above the sealing sleeve 8, and the first sealing washer 6 is located between the metal sleeve 7 and the gland nut 5. When the gland nut 5 is screwed, the first sealing washer 6 and the sealing sleeve 8 are subjected to axial forces. During the process of bearing the axial forces, the first sealing washer 6 and the sealing sleeve 8 will generate radial deformations, so as to closely adhere to the outside of the valve core 2. The function of the metal sleeve 7 is to transmit the axial force of the gland nut 5 to the sealing sleeve 8.

[0024] Even further, there is a support boss provided on the inner side of the upper end of the connecting piece 9. Through the support boss, the position of the sealing sleeve 8 inside the connecting piece 9 can be restricted. The lower end of the metal sleeve 7 is located inside the upper end of the connecting piece 9, and the upper end of the metal sleeve 7 is located outside the upper end of the connecting piece 9. When the gland nut 5 is rotated, the sealing sleeve 8 can be pressed against the support boss through the metal sleeve 7.

[0025] In an embodiment of the present application, it also includes an inlaid nut 12. The inlaid nut 12 is inlaid inside the installation hole, and the outer side of the lower end of the connecting piece 9 is threadedly connected inside the inlaid nut 12. By means of the inlaid nut 12, it is possible to avoid setting threads in the installation hole of the valve body 1, thereby reducing the processing difficulty of the valve body 1, and it is also possible to avoid wear of the valve body 1, thereby improving the service life of the valve body 1.

[0026] Furthermore, a limit boss 10 is provided on the outer side of the connecting piece 9. Through the limit boss 10, the further screwing of the connecting piece 9 into the inlaid nut 12 can be restricted, thereby ensuring the accuracy of the installation position of the connecting piece 9. Among them, a second sealing washer 11 is provided between the limit boss 10 and the end face of the inlaid nut 12 to ensure the tightness of the connection between the connecting piece 9 and the valve body 1.

[0027] In an embodiment of the present application, a polygonal connection end may be provided at a position near the top of the outer end of the valve core 2. Correspondingly, a polygonal inner hole that cooperates with the polygonal connection end is provided inside the wrench 3. For example, the polygonal connection end is a square shaft, and the inner ring of the wrench 3 is a square hole that cooperates with the square shaft, or other polygonal cooperation structures. In addition, key connection may also be adopted, such as spline or flat key, etc. A thread is provided at the outer end of the valve core 2. After the wrench 3 is sleeved on the outer end of the valve core 2, a limit nut 4 is screwed onto the outer end of the valve core 2 to fix the wrench 3 on the valve core 2.

[0028] In an embodiment of the present application, a plug 13, a third sealing washer 14 and a locking nut 15 are provided at the inner end of the valve core 2 extending into the valve body 1. A valve hole 16 corresponding to the plug 13 is provided inside the valve body 1. The upper end of the plug 13 is detachably connected to the inner end of the valve core 2, such as by threaded connection or snap connection. The plug 13 can be made of an elastic material or a rigid material. The elastic plug 13 facilitates snap connection with the valve core 2 and also facilitates close fitting of the plug 13 with the valve hole 16 to improve the tightness of the plug 13 in plugging the valve hole 16. A threaded shaft may also be provided at the lower end of the plug 13. After the third sealing washer 14 is sleeved on the threaded shaft, it can be fixed by the locking nut 15 to press the third sealing washer 14 against the lower end of the plug 13. The plug 13 and the third sealing washer 14 move under the control of the axial movement of the valve core 2 to open or close the valve hole 16 of the valve body 1. When the valve needs to be closed, by screwing the valve core 2, the plug 13 and the third sealing washer 14 move towards the valve hole 16. When the third sealing washer 14 contacts and presses against the end face of the valve hole 16, the function of plugging the valve hole 16 can be achieved; when the valve needs to be opened, the valve core 2 is screwed in the reverse direction to separate the third sealing washer 14 from the valve hole 16.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A valve capable of quickly repairing leaks, comprising a valve body (1) and a valve core (2). An installation hole is provided on the side wall of the valve body (1), and the inner end of the valve core (2) extends into the valve body (1) through the installation hole. It is characterized in that, It further includes a connecting piece (9), a sealing sleeve (8), a first sealing washer (6), a gland nut (5) and a wrench (3). The bottom of the outer side of the connecting piece (9) is connected in the mounting hole. The body of the valve core (2) is threadedly connected to the inner side of the connecting piece (9). The sealing sleeve (8) is sleeved on the body of the valve core (2). The sealing sleeve (8) is located inside the upper end of the connecting piece (9). The gland nut (5) is sleeved on the outer side of the body of the valve core (2) and is threadedly connected to the outer side of the upper end of the connecting piece (9). The wrench (3) is detachably connected to the outer end of the valve core (2). The first sealing washer (6) is used to be installed on the body of the valve core (2) when the liquid in the valve body (1) leaks between the sealing sleeve (8) and the valve core (2). The first sealing washer (6) is located between the gland nut (5) and the sealing sleeve (8); It further includes a metal sleeve (7) sleeved on the body of the valve core (2). The metal sleeve (7) is located above the sealing sleeve (8). The first sealing washer (6) is located between the metal sleeve (7) and the gland nut (5). The gland nut (5) is used to axially press the first sealing washer (6) and the sealing sleeve (8); There is a support boss on the inner side of the upper end of the connecting piece (9). The lower end of the metal sleeve (7) is located inside the upper end of the connecting piece (9). The upper end of the metal sleeve (7) is located outside the upper end of the connecting piece (9). The gland nut (5) is used to press the sealing sleeve (8) against the support boss through the metal sleeve (7); It further includes an insert nut (12) located inside the mounting hole. The lower outer side of the connecting piece (9) is threadedly connected inside the insert nut (12).

2. The valve according to claim 1, characterized in that, There is a limit boss (10) on the outer side of the connecting piece (9). The limit boss (10) is used to limit the further screwing of the connecting piece (9) into the insert nut (12).

3. The valve according to claim 2, characterized in that, There is a second sealing washer (11) between the end face of the limit boss (10) and the insert nut (12).

4. The valve according to any one of claims 1 to 3, characterized in that, The outer end of the valve core (2) is provided with a polygonal connection end. The wrench (3) is provided with a polygonal inner hole that cooperates with the polygonal connection end.

5. The valve according to any one of claims 1 to 3, characterized in that, The inner end of the valve core (2) is provided with a plug (13), a third sealing washer (14) and a locking nut (15). The upper end of the plug (13) is connected to the valve core (2). The lower end of the plug (13) is provided with a threaded shaft. The third sealing washer (14) is sleeved on the threaded shaft. The locking nut (15) is used to press the third sealing washer (14) against the lower end of the plug (13). The plug (13) and the third sealing washer (14) move under the control of the axial movement of the valve core (2) to open or close the valve hole (16) in the valve body (1).

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