Leakage-proof stop valve

Abstract

The utility model discloses a leakage-proof stop valve, and relates to the technical field of stop valves. Comprising a fixing shell, and a partition plate and a connecting ring are arranged in the fixing shell; the control piece is arranged in the fixed shell and used for controlling on-off of water flow; the sealing piece is arranged in the fixing shell and used for guiding water, the control piece comprises a connecting pipe, the connecting pipe is connected with the fixing shell, a threaded rod is arranged in the connecting pipe and moves relative to the connecting pipe, and the moving direction of the threaded rod is parallel to the height direction of the connecting pipe. Through the arrangement of the control piece and the sealing piece, the matching of the connecting pipe, the threaded rod, the sealing gasket, the fixed pipe, the sliding pipe, the groove, the through groove and the sliding groove is realized, so that water is cut off for multiple times in the use process, and the contact surface of the sealing gasket and the connecting ring is prevented from being damaged; and liquid leakage occurs when the damaged sealing gasket is in contact with the connecting ring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stop valve, concretely relates to a leakproof stop valve. BACKGROUND

[0002] The stop valve is also called a gate valve, and belongs to a forced sealing type valve, so pressure must be applied to the valve disc when the valve is closed to force the sealing surface not to leak, the opening and closing part of the stop valve is a conical valve disc, the sealing surface is flat or conical, the valve disc moves linearly along the center line of the valve seat, and can be used for controlling the flow of various types of liquids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media.

[0003] In the process of stopping the liquid, the liquid is mostly cut off through the contact between the sealing gasket and the connecting ring, and in the long-time use of the sealing gasket, the sealing gasket directly contacts the liquid, so that the contact surface of the sealing gasket and the connecting ring is damaged, and the damaged sealing gasket and the connecting ring contact liquid leakage, therefore, a leakproof stop valve is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a leakproof stop valve, which can prevent the sealing gasket from directly contacting the liquid, thereby preventing the contact surface of the sealing gasket and the connecting ring from being damaged and causing liquid leakage when the damaged sealing gasket and the connecting ring contact.

[0005] The utility model discloses a leakproof stop valve, which can prevent the sealing gasket from directly contacting the liquid, thereby preventing the contact surface of the sealing gasket and the connecting ring from being damaged and causing liquid leakage when the damaged sealing gasket and the connecting ring contact.

[0006] A leakproof stop valve, comprising:

[0007] A fixed shell is provided with a partition and a connecting ring inside.

[0008] A control member is arranged inside the fixed shell and is used for controlling water flow.

[0009] A sealing member is arranged inside the fixed shell and is used for guiding water.

[0010] Further, the control member comprises a connecting pipe connected with the fixed shell, a threaded rod is arranged inside the connecting pipe, the threaded rod moves relative to the connecting pipe, and the moving direction of the threaded rod is parallel to the height direction of the connecting pipe, a sealing gasket is arranged at the end of the threaded rod relative to the connecting ring, and the sealing gasket is matched with the connecting ring.

[0011] Further, a first spring is arranged between the threaded rod and the sealing gasket.

[0012] Further, the sealing piece comprises a fixed tube connected with the connecting ring and the fixed shell, a sliding groove is arranged in the fixed tube relative to the connecting ring end, a sliding tube is slidably connected in the sliding groove, a plurality of grooves are arranged in the sliding tube relative to the sealing pad end, a connecting frame is arranged in the sliding tube, a second spring is arranged in the connecting frame relative to the fixed shell side, a plurality of through grooves are arranged in the outer side of the fixed tube and the through grooves pass through the fixed tube.

[0013] Further, a plurality of guide grooves are arranged in the side wall of the sliding groove, and a guide block is slidably connected in the guide groove.

[0014] Further, the outer side of the sliding tube is also provided with a mounting groove, and the mounting groove is provided with a sealing ring.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model discloses a control piece and sealing piece are arranged, realize through the cooperation of connecting pipe, threaded rod, sealing pad, fixed tube, sliding tube, groove, through groove and sliding groove, thereby cutting off water for many times in the use process, avoid the contact surface of sealing pad and connecting ring to be damaged, cause the damaged sealing pad and the connecting ring contact to appear liquid leakage. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is the main sectional view of the utility model;

[0019] Figure 3 It is the fixed shell partial sectional view of the utility model;

[0020] Figure 4 It is the connecting ring enlarged view of the utility model;

[0021] Figure 5 It is the sealing piece exploded view of the utility model;

[0022] Figure 6 It is the fixed tube enlarged view of the utility model;

[0023] Reference signs: 1, fixed shell;101, partition;102, connecting ring;2, control piece;201, connecting pipe;202, threaded rod;203, sealing pad;204, first spring;3, sealing piece;301, fixed tube;302, sliding tube;303, second spring;304, connecting frame;305, groove;306, sliding groove;307, through groove;308, guide groove;309, guide block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0026] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0027] The electrical components appearing in the text are all electrically connected with the master controller and 220V mains from the outside, and the master controller can be a conventional known device such as a computer for control.

[0028] In the description of the embodiments of the present application, it should be noted that the directions or position relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or position relationships shown in the drawings, or the directions or position relationships commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application.

[0029] As Figures 1 to 6As shown, a leak-proof stop valve comprises a fixed shell 1, a partition plate 101 and a connecting ring 102 are arranged in the fixed shell 1 respectively; a control member 2 is arranged in the fixed shell 1 and is used for controlling the on-off of water flow; a sealing member 3 is arranged in the fixed shell 1 and is used for guiding water, specifically, when the water flow is controlled, the water flow is first controlled to be cut off and turned on by the cooperation of the control member 2 and the connecting ring 102, so that the water can meet the use requirement, and in the process of cutting off and turning on the water flow by the control member 2, the water flow is further cut off by the cooperation of the sealing member 3, so as to avoid water leakage during use and ensure the effect of cutting off the water flow during use. The fixed shell 1 is provided with a water inlet pipe and a water outlet pipe on the outside, so as to guide the water during use. The water inlet pipe and the water outlet pipe can be connected with the guide pipe through flanges during use. The partition plate 101 cooperates with the connecting ring 102 to block the water flow of the water inlet pipe and the water outlet pipe, so as to ensure the stability of the water flow direction during use. A through hole is formed in the connecting ring 102, and the through hole cooperates with the control member 2 to control the on-off of the water flow.

[0030] As shown in Figures 1 to 6 , the control member 2 comprises a connecting pipe 201 connected with the fixed shell 1, a threaded rod 202 arranged in the connecting pipe 201, the threaded rod 202 moving relative to the connecting pipe 201, and the moving direction of the threaded rod 202 being parallel to the height direction of the connecting pipe 201, a sealing gasket 203 arranged at one end of the threaded rod 202 relative to the connecting ring 102, and the sealing gasket 203 being matched with the connecting ring 102. Specifically, when it is necessary to control the water flow, the sealing gasket 203 is first driven to move linearly by the cooperation of the connecting pipe 201 and the threaded rod 202, and in the process of linear movement of the sealing gasket 203, the water flow is cut off and turned on by the cooperation of the sealing gasket 203 and the through hole. The through hole and the sealing gasket 203 are of the same shape, the sealing gasket 203 can be in the form of a boss or a semicircle, and the sealing gasket 203 can be matched with the through hole stably. The sealing gasket 203 can be made of rubber or silicone, so as to further ensure the stability of the sealing gasket 203 matched with the through hole. The connecting pipe 201 and the fixed shell 1 can be connected by bolts or clamps, so as to facilitate the replacement and maintenance of the damaged sealing gasket 203 during use. The sealing gasket 203 and the threaded rod 202 can be connected by buckles or bolts, and the connecting pipe 201 and the threaded rod 202 are connected by threads, so that the sealing gasket 203 can be driven to move relative to the connecting ring 102 during the rotation of the threaded rod 202.

[0031] As shown in Figures 1 to 6 , a first spring 204 is further arranged between the threaded rod 202 and the sealing gasket 203. Specifically, the first spring 204 can provide a pushing force to the sealing gasket 203 during use, so as to facilitate the cutting off of the water flow during use.

[0032] As Figures 1 to 6 shown, the sealing piece 3 comprises a fixed tube 301 connected to the connecting ring 102 and the fixed shell 1, the fixed tube 301 is provided with a sliding groove 306 at one end relative to the connecting ring 102, the sliding groove 306 is slidably connected with a sliding tube 302 inside, the sliding tube 302 is provided with a plurality of grooves 305 at one end relative to the sealing gasket 203, the connecting frame 304 is arranged inside the sliding tube 302, the second spring 303 is arranged at one side of the connecting frame 304 relative to the fixed shell 1, a plurality of through grooves 307 are arranged on the outside of the fixed tube 301, and the through grooves 307 penetrate the fixed tube 301, specifically, when it is needed to cut off the water flow, first, the sealing gasket 203 is attached to the through hole, in the process of attaching the sealing gasket 203 to the through hole, the sealing gasket 203 pushes the sliding tube 302 to move relative to the fixed tube 301, so that the bottom end of the sliding tube 302 is attached to the sliding groove 306, and in the process of moving the sliding tube 302, the gap between the through groove 307 and the sliding groove 306 is sealed, so as to further cut off the water in cooperation with the sealing gasket 203, avoiding water leakage in the process of use, when it is needed to conduct the water, first, the sealing gasket 203 is separated from the through hole by the threaded rod 202, in the process of separating the sealing gasket 203 from the through hole, the sliding tube 302 moves with the sealing gasket 203 under the pushing of the second spring 303, so that the water flow can flow between the gap between the through groove 307, the sliding groove 306 and the through hole and the sealing gasket 203, and at the same time, the moving distance of the sliding tube 302 is controlled by controlling the distance between the sealing gasket 203 and the through hole, so as to adjust the flow of the water flow, the second spring 303 provides a pushing force for the sliding tube 302 in cooperation with the connecting frame 304 in the process of use, so that the sliding tube 302 can move with the sealing gasket 203, the grooves 305 can guide the water flow in the process of use, avoiding the blockage of the water flow caused by the attachment of the sliding tube 302 and the sealing gasket 203, the sliding groove 306 and the sliding tube 302 are the same shape, and the sliding tube 302 can be cylindrical or hexagonal.

[0033] As Figures 1 to 6 shown, a plurality of guide grooves 308 are arranged on the side wall of the sliding groove 306, the guide grooves 308 are slidably connected with guide blocks 309 inside, the guide blocks 309 are connected with the sliding tube 302, specifically, in the process of moving the sliding tube 302, the direction of the sliding tube 302 is guided by the cooperation of the guide grooves 308 and the guide blocks 309, ensuring that the sliding tube 302 can stably control the water flow.

[0034] As Figures 1 to 6As shown, the sliding pipe 302 is further provided with an installation groove, and a sealing ring is arranged in the installation groove, specifically, the sealing ring is made of rubber or silica gel, so that in the process of cutting off water, water leakage through the gap between the sliding groove 306 and the sliding pipe 302 is avoided, and the sliding pipe 302 can stably seal water.

[0035] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A leak-tight stop valve, characterized in that, Include: Fixed shell (1), the fixed shell (1) is provided with a partition (101) and a connecting ring (102) respectively inside; Control piece (2) is arranged inside the fixed shell (1), for controlling the on-off of water flow; Sealing element (3) is arranged inside the fixed shell (1), for guiding water; The control piece (2) includes a connecting pipe (201), the connecting pipe (201) is connected with the fixed shell (1), The connecting pipe (201) is provided with a threaded rod (202) inside, the threaded rod (202) moves relative to the connecting pipe (201), and the threaded rod (202) moving direction is parallel to the height direction of the connecting pipe (201), the threaded rod (202) is provided with a sealing gasket (203) relative to the end of the connecting ring (102), and the sealing gasket (203) is matched with the connecting ring (102); The sealing element (3) includes a fixed pipe (301), the fixed pipe (301) is connected with the connecting ring (102) and the fixed shell (1), the fixed pipe (301) is provided with a sliding groove (306) relative to the end of the connecting ring (102), The sliding groove (306) is slidably connected with a sliding pipe (302) inside, the sliding pipe (302) is provided with a plurality of grooves (305) relative to the end of the sealing gasket (203), the sliding pipe (302) is provided with a connecting frame (304) inside, the connecting frame (304) is provided with a second spring (303) relative to one side of the fixed shell (1), the fixed pipe (301) is provided with a plurality of through grooves (307) outside, and the through groove (307) penetrates the fixed pipe (301).

2. A leak-tight stop valve according to claim 1, characterized in that The threaded rod (202) and the sealing gasket (203) are further provided with a first spring (204) therebetween.

3. A leak-tight stop valve according to claim 1, characterized in that The sliding groove (306) side wall is provided with a plurality of guide grooves (308), the guide groove (308) is slidably connected with a guide block (309) inside, and the guide block (309) is connected with the sliding pipe (302).

4. A leak-tight stop valve according to claim 1, characterized in that The sliding pipe (302) is further provided with a mounting groove outside, and the mounting groove is provided with a sealing ring inside.

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