Novel valve element sealing structure

Abstract

The utility model relates to the field of valve elements, in particular to a novel valve element sealing structure which comprises a valve body, a threaded hole is formed in the valve body, a valve seat is arranged in the valve body, a valve element is connected in the valve seat in a sliding mode, a valve rod is fixedly connected to the upper end of the valve element, a valve rod is arranged in the valve body, and the valve rod is connected with the valve seat in a sliding mode. A sliding groove is formed in the valve rod, and a sealing mechanism is arranged on the outer side of the valve element. By designing the sealing sleeve, the annular sleeve, the sliding block, the sliding groove, the handle, the connecting base and other components, the valve element, the valve rod and the sealing sleeve are detached from the device, the sliding block is pulled to move out of the sliding groove, then the annular sleeve is moved to drive the sealing sleeve and other components to move out of the valve element, and then the sealing sleeve is detached; and the sealing sleeve on the valve core is detached and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of valve cores, in particular to a novel valve core sealing structure. Background Art

[0002] The valve core sealing structure is realized by adding a sealing sleeve between the valve core and the valve seat. The sealing sleeve is usually made of materials with high temperature resistance and corrosion resistance, such as fluororubber, polytetrafluoroethylene, etc. When the valve core is closed, the sealing sleeve will be compressed, thereby effectively preventing the leakage of the medium. For example, the utility model patent with the patent authorization publication number CN209180389U proposes a valve core valve seat sealing structure, which includes a valve core and a valve seat. The valve core and the valve seat are coaxially arranged. A hollow inverted frustum-shaped sealing cavity is arranged in the valve seat. The valve core includes an inverted frustum-shaped sealing body. The radius of the bottom surface of the sealing cavity is the same as the radius of the bottom surface of the sealing body. The valve core and the valve seat are connected through the sealing cavity and the sealing body. The included angle between the side wall of the sealing cavity and the central axis is 33° - 37°, and the included angle between the side wall of the sealing body and the central axis is 27° - 32°. This utility model has a sealing cavity arranged in the valve seat, and a sealing body matching the sealing cavity is arranged on the valve core. And there are certain angles between the side wall of the sealing cavity and the central rotating shaft, and between the side wall of the sealing body and the central rotating shaft. It can be ground with the valve seat through the movement of the valve core, thereby increasing the sealing area and the sealing specific pressure, improving the sealing performance, and prolonging the service life of the sealing surfaces of the valve core and the valve seat. In the prior art, when the sealing sleeve on the valve core is damaged, the sealing sleeve is inconvenient to disassemble, resulting in the inconvenience of disassembling and replacing the sealing sleeve on the valve core. Therefore, it is necessary to improve the prior art. Summary of the Invention

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a novel valve core sealing structure, which solves the problem that when the sealing sleeve on the valve core is damaged, the sealing sleeve is inconvenient to disassemble, resulting in the inconvenience of disassembling and replacing the sealing sleeve on the valve core.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A novel valve core sealing structure, including a valve body, a threaded hole is opened inside the valve body, a valve seat is arranged inside the valve body, a valve core is slidably connected inside the valve seat, a valve rod is fixedly connected to the upper end of the valve core, a valve rod is arranged inside the valve body, a chute is opened inside the valve rod, and a sealing mechanism is arranged on the outer side of the valve core.

[0006] In addition, a preferred structure is that the sealing mechanism includes a sealing sleeve, the inner part of the valve seat contacts the sealing sleeve, the inner part of the sealing sleeve contacts the valve core, a ring sleeve is fixedly connected to the sealing sleeve, the inner part of the ring sleeve contacts the valve stem, the valve core contacts the ring sleeve, a slider is slidably connected to the inside of the chute, a sliding groove is formed in the inner part of the ring sleeve, a handle is slidably connected to the inside of the sliding groove, a connecting seat is fixedly connected to the ring sleeve, a spring is arranged in the inner part of the ring sleeve, a guiding block is slidably connected to the inner part of the ring sleeve, a clamping groove is formed in the inner part of the guiding block, a slider is slidably connected to the inner part of the ring sleeve, and the slider is fixedly connected to the guiding block. By disassembling the valve core, the valve stem and the sealing sleeve from the device, pulling the slider out of the chute, and then moving the ring sleeve to drive the sealing sleeve and other components to move out of the valve core, the sealing sleeve can be disassembled, and the sealing sleeve on the valve core can be disassembled and replaced.

[0007] In addition, a preferred structure is that a telescopic sleeve is arranged in the inner part of the connecting seat, and the inner part of the telescopic sleeve contacts the handle. By designing the telescopic sleeve, the inside of the ring sleeve can be sealed.

[0008] In addition, a preferred structure is that one end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the ring sleeve. By designing the spring, the slider has an elastic effect.

[0009] In addition, a preferred structure is that balls are arranged in the inner part of the clamping groove, and the outer sides of the balls contact the ring sleeve. By designing the balls, the friction between the guiding block and the ring sleeve can be reduced.

[0010] In addition, a preferred structure is that an elastic clamping block is clamped in the inner part of the ring sleeve, and the elastic clamping block is fixedly connected to the slider. By designing the elastic clamping block, the slider can be limited.

[0011] The beneficial effects of the present utility model are as follows:

[0012] By designing components such as the sealing sleeve, the ring sleeve, the slider, the sliding groove, the handle and the connecting seat, the present utility model disassembles the valve core, the valve stem and the sealing sleeve from the device, pulls the slider out of the chute, and then moves the ring sleeve to drive the sealing sleeve and other components to move out of the valve core, so that the sealing sleeve can be disassembled, and the sealing sleeve on the valve core can be disassembled and replaced. Description of the Drawings

[0013] Figure 1 is a three-dimensional view of the overall structure of a novel valve core sealing structure proposed by the present utility model;

[0014] Figure 2 is a sectional three-dimensional view of the overall structure of a novel valve core sealing structure proposed by the present utility model Figure 1 of.

[0015] Figure 3 A new valve core sealing structure proposed in this utility model Figure 2 Magnified view of the valve core;

[0016] Figure 4 A new valve core sealing structure proposed in this utility model Figure 3 Enlarged view of point A.

[0017] In the figure: 1. Valve body; 2. Threaded hole; 3. Valve seat; 4. Valve core; 5. Valve stem; 6. Slide groove; 7. Sealing mechanism; 71. Sealing sleeve; 72. Annular sleeve; 73. Slider; 74. Slide groove; 75. Handle; 76. Connecting seat; 77. Telescopic sleeve; 78. Spring; 79. Guide block; 710. Slot; 711. Ball; 712. Elastic block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figures 1 - 4 A new type of valve core sealing structure includes a valve body 1, a threaded hole 2 is opened inside the valve body 1, a valve seat 3 is arranged inside the valve body 1, a valve core 4 is slidably connected to the inside of the valve seat 3, the upper end of the valve core 4 is fixedly connected to the valve stem 5, a valve stem 5 is arranged inside the valve body 1, a slide groove 6 is opened inside the valve stem 5, and a sealing mechanism 7 is arranged on the outside of the valve core 4.

[0020] Reference Figure 3 、 Figure 4 The sealing mechanism 7 includes a sealing sleeve 71, the interior of the valve seat 3 is in contact with the sealing sleeve 71, the interior of the sealing sleeve 71 is in contact with the valve core 4, the sealing sleeve 71 is fixedly connected to the annular sleeve 72, the interior of the annular sleeve 72 is in contact with the valve stem 5, the annular sleeve 72 is in contact with the valve core 4, the interior of the slide groove 6 is slidably connected to the slider 73, the interior of the annular sleeve 72 is provided with a sliding groove 74, the interior of the sliding groove 74 is slidably connected to the handle 75, the annular sleeve 72 is fixedly connected to the connecting seat 76, the interior of the connecting seat 76 is provided with a telescopic sleeve 77, the interior of the telescopic sleeve 77 is in contact with the handle 75, by designing the telescopic sleeve 77, the inside of the annular sleeve 72 can be sealed, the interior of the annular sleeve 72 is provided with a spring 78, one end of the spring 78 is fixedly connected to the slider 73, and the other end of the spring 78 is fixedly connected to the annular sleeve 72. By designing the spring 78, the slider 73 has an elastic effect.

[0021] Reference Figure 3 、 Figure 4, a guide block 79 is slidably connected inside the annular sleeve 72. A clamping groove 710 is formed inside the guide block 79. A ball 711 is arranged inside the clamping groove 710. The outer side of the ball 711 contacts the annular sleeve 72. By designing the ball 711, the friction between the guide block 79 and the annular sleeve 72 can be reduced. An elastic clamping block 712 is clamped inside the annular sleeve 72. A slider 73 is fixedly connected to the elastic clamping block 712. By designing the elastic clamping block 712, the slider 73 can be limited. A slider 73 is slidably connected inside the annular sleeve 72. A guide block 79 is fixedly connected to the slider 73. By disassembling the valve core 4, the valve stem 5 and the sealing sleeve 71 from the device, pulling the slider 73 out of the chute 6, and then moving the annular sleeve 72 to drive components such as the sealing sleeve 71 out of the valve core 4, the sealing sleeve 71 can be disassembled, and the sealing sleeve 71 on the valve core 4 can be disassembled and replaced.

[0022] The specific implementation process of the present utility model is as follows: When the sealing sleeve 71 on the valve core 4 needs to be replaced, disassemble the valve core 4, the valve stem 5 and the sealing sleeve 71 from the device, and then pull the handle 75 to move towards the valve core away from the valve stem 5. The movement of the handle 75 drives the slider 73 to move. The movement of the handle 75 causes the telescopic sleeve 77 to expand and contract. The movement of the slider 73 drives the elastic clamping block 712 and the guide block 79 to move. The movement of the elastic clamping block 712 moves out of the annular sleeve 72. The movement of the slider 73 compresses the spring 78. The movement of the guide block 79 drives the clamping groove 710 to move. The movement of the clamping groove 710 drives the ball 711 to move. The slider 73 moves out of the chute 6, and then move the annular sleeve 72 to drive components such as the sealing sleeve 71 out of the valve core 4, so that the sealing sleeve 71 can be disassembled, and the sealing sleeve 71 on the valve core 4 can be disassembled and replaced.

[0023] The above is only a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes should be covered within the protection scope of the present utility model.

Claims

1. A novel valve core sealing structure, comprising a valve body (1), characterized in that: A threaded hole (2) is formed inside the valve body (1). A valve seat (3) is arranged inside the valve body (1). A valve core (4) is slidably connected inside the valve seat (3). The upper end of the valve core (4) is fixedly connected to a valve rod (5). The valve rod (5) is arranged inside the valve body (1). A sliding groove (6) is formed inside the valve rod (5). A sealing mechanism (7) is arranged outside the valve core (4).

2. A novel valve core sealing structure according to claim 1, characterized in that, The sealing mechanism (7) includes a sealing sleeve (71). The sealing sleeve (71) is in contact with the inside of the valve seat (3). The sealing sleeve (71) is in contact with the valve core (4) inside. An annular sleeve (72) is fixedly connected to the sealing sleeve (71). The annular sleeve (72) is in contact with the valve rod (5) inside. The annular sleeve (72) is in contact with the valve core (4). A slider (73) is slidably connected inside the sliding groove (6). A sliding groove (74) is formed inside the annular sleeve (72). A handle (75) is slidably connected inside the sliding groove (74). A connecting seat (76) is fixedly connected to the annular sleeve (72). A spring (78) is arranged inside the annular sleeve (72). A guiding block (79) is slidably connected inside the annular sleeve (72). A clamping groove (710) is formed inside the guiding block (79). A slider (73) is slidably connected inside the annular sleeve (72). The slider (73) is fixedly connected to the guiding block (79).

3. A novel valve core sealing structure according to claim 2, characterized in that, A telescopic sleeve (77) is arranged inside the connecting seat (76). The telescopic sleeve (77) is in contact with the handle (75) inside.

4. A novel valve core sealing structure according to claim 2, characterized in that, One end of the spring (78) is fixedly connected to the slider (73), and the other end of the spring (78) is fixedly connected to the annular sleeve (72).

5. A novel valve core sealing structure according to claim 2, characterized in that, A ball (711) is arranged inside the clamping groove (710). The outside of the ball (711) is in contact with the annular sleeve (72).

6. A novel valve core sealing structure according to claim 2, characterized in that, An elastic clamping block (712) is clamped inside the annular sleeve (72). The elastic clamping block (712) is fixedly connected to the slider (73).

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