Wedge-shaped gate valve with stable sealing performance

Abstract

The wedge-shaped gate valve comprises a wedge-shaped gate valve body, a through-flow pipe is arranged on the wedge-shaped gate valve body, an installation shell is arranged in the through-flow pipe, a first through-flow hole is formed in the front side wall of the installation shell in a penetrating mode, an impurity filtering and collecting assembly is arranged in the installation shell, and a second through-flow hole is formed in the front side wall of the installation shell. And a locking assembly is arranged between the mounting shell and the left and right side walls of the impurity filtering and collecting assembly. By means of the installation shell and the impurity filtering and collecting assembly, when the through-flow pipe conducts through-flow, the impurity filtering and collecting assembly filters and collects particles in water before water flow enters the flashboard, and the situation that when the flashboard is pressed down to the valve seat, impurities in a medium are prone to being clamped, the flashboard and the valve seat cannot be fully attached, and the sealing performance is affected is avoided; and by arranging a locking assembly, a filtering assembly and a threaded connecting ring, locking of an impurity collecting shell can be quickly relieved, impurities can be cleaned, a filter screen can be conveniently replaced, and impurity cleaning and component maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a wedge gate valve with stable sealing performance. Background Art

[0002] A valve is a closing member, i.e., a gate plate. The moving direction of the gate plate is perpendicular to the fluid direction. A gate valve can only be fully opened and fully closed. A gate valve has small flow resistance, is not prone to water hammer phenomenon, has a simple structure, is symmetric on both sides, and has a wide range of applications. A wedge gate valve is a type of gate valve, which includes a wedge-shaped gate plate, a valve body for accommodating the gate plate, and a valve seat with an inclined sealing surface. The wedge gate valve uses the downward movement of the wedge-shaped gate plate to make the two side surfaces of the gate plate fit with the sealing surfaces of the valve seats on both sides respectively to form a hard seal. However, there are defects. The medium is mostly doped with impurities. When the gate plate is pressed down onto the valve seat, it is easy to clamp the impurities in the medium, resulting in the inability of the gate plate and the valve seat to fit fully, poor sealing performance. At the same time, some solid particle impurities will wear the sealing surfaces of both the gate plate and the valve seat, shortening the service life of the valve seat and the gate plate, and also causing the sealing performance between the valve seat and the gate plate to decline. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, one of the purposes of the present utility model is to provide a wedge gate valve with stable sealing performance. By providing an installation shell and an impurity filtration and collection assembly, when the through-flow pipe is in through-flow, before the water flow enters the gate plate, the impurity filtration and collection assembly filters and collects the particles in the water, avoiding the situation that when the gate plate is pressed down onto the valve seat, it is easy to clamp the impurities in the medium, resulting in the inability of the gate plate and the valve seat to fit fully and affecting the sealing performance. By providing a locking assembly, a filtration assembly, and a threaded connection ring, the locking of the impurity collection shell can be quickly released, the impurities can be cleaned, the filter screen can be conveniently replaced, and the impurity cleaning and component maintenance are facilitated.

[0004] One of the purposes of the present utility model is achieved by the following technical solutions: A wedge gate valve with stable sealing performance, comprising: a wedge gate valve main body, a through-flow pipe is provided on the wedge gate valve main body, an installation shell is provided inside the through-flow pipe, a first through-flow hole is penetrated and opened on the front side wall of the installation shell, an impurity filtration and collection assembly is provided inside the installation shell, and a locking assembly is provided between the left and right side walls of the installation shell and the impurity filtration and collection assembly;

[0005] The impurity filtration and collection assembly includes an impurity collection shell, a top plate is fixedly connected to the top end of the impurity collection shell, a handle is fixedly connected to the top end of the top plate, a collection groove is opened on the front side of the impurity collection shell, a second through-flow hole is penetrated and opened on the rear side wall of the inner wall of the collection groove, a threaded connection ring is provided on the front side edge of the second through-flow hole, and a filtration assembly is threadedly connected to the outer side wall of the threaded connection ring;

[0006] The filtering component includes a connecting frame, a filter screen is fixedly connected to the inner side wall of the connecting frame, a connecting rod is fixedly connected to the front side wall of the connecting frame, and a threaded connection groove is opened on the rear side wall of the connecting frame. By providing the installation shell and the impurity filtering and collecting component, when the flow pipe is flowing, before the water flow enters the gate plate, the impurity filtering and collecting component filters and collects the particles in the water, avoiding that when the gate plate is pressed down onto the valve seat, it is easy to clamp the impurities in the medium, resulting in the gate plate and the valve seat not being able to fit fully, affecting the sealing performance; by providing the locking component, the filtering component and the threaded connection ring, the locking of the impurity collecting shell can be quickly released, the impurities can be cleaned, the filter screen can be conveniently replaced, and the impurity cleaning and component maintenance are facilitated.

[0007] According to the described wedge gate valve with stable sealing performance, the locking component includes a first fixing block, a second fixing block, and a fixing bolt. There are two first fixing blocks and two second fixing blocks. The two first fixing blocks are symmetrically arranged on the left and right sides of the installation shell, and the two second fixing blocks are symmetrically arranged on the left and right sides of the impurity collecting shell. A first threaded hole is penetrated and opened on the front side wall of each first fixing block, and a second threaded hole is penetrated and opened on the front side wall of each second fixing block.

[0008] According to the described wedge gate valve with stable sealing performance, the positions of the first threaded hole and the second threaded hole correspond to each other, and the outer side wall of the fixing bolt is threadedly connected to the inner side walls of the first threaded hole and the second threaded hole.

[0009] For the provided wedge gate valve with stable sealing performance, the inner side wall of the threaded connection groove is threadedly connected to the outer side wall of the threaded connection ring.

[0010] According to the described wedge gate valve with stable sealing performance, a sealing rubber ring is bonded to the upper side of the side wall of the impurity collecting shell.

[0011] According to the described wedge gate valve with stable sealing performance, the outer side wall of the impurity collecting shell is slidably connected to the inner side wall of the installation shell.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Brief Description of the Drawings

[0013] The following further illustrates the present invention with reference to the drawings and embodiments;

[0014] Figure 1 is a three-dimensional view of a wedge gate valve with stable sealing performance of the present invention;

[0015] Figure 2 is a three-dimensional view of the installation shell of a wedge gate valve with stable sealing performance of the present invention;

[0016] Figure 3Structural diagram of the impurity filtration and collection component of a wedge gate valve with stable sealing performance according to the present utility model;

[0017] Figure 4 Stereogram of the filtration component of a wedge gate valve with stable sealing performance according to the present utility model.

[0018] Legend description:

[0019] 1. Wedge gate valve body; 2. Installation shell; 3. Impurity filtration and collection component; 4. Locking component; 5. Filtration component; 101. Flow-through pipe; 201. First flow-through hole; 301. Impurity collection shell; 3011. Collection groove; 3012. Second flow-through hole; 302. Top plate; 303. Handle; 304. Threaded connection ring; 305. Sealing rubber ring; 401. First fixing block; 4011. First screw hole; 402. Second fixing block; 4021. Second screw hole; 403. Fixing bolt; 501. Connection frame; 5011. Threaded connection groove; 502. Filter screen; 503. Connecting rod. Detailed implementation manners

[0020] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0021] Refer to Figures 1-4 , an embodiment of a wedge gate valve with stable sealing performance according to the present utility model includes: a wedge gate valve body 1, a flow-through pipe 101 is provided on the wedge gate valve body 1, an installation shell 2 is provided inside the flow-through pipe 101, a first flow-through hole 201 is provided through the front side wall of the installation shell 2, an impurity filtration and collection component 3 is provided inside the installation shell 2, and a locking component 4 is provided between the left and right side walls of the installation shell 2 and the impurity filtration and collection component 3;

[0022] The impurity filtration and collection component 3 includes an impurity collection shell 301, the outer side wall of the impurity collection shell 301 is slidably connected to the inner side wall of the installation shell 2, a sealing rubber ring 305 is adhered to the upper side wall of the impurity collection shell 301, a top plate 302 is fixedly connected to the top end of the impurity collection shell 301, a handle 303 is fixedly connected to the top end of the top plate 302, a collection groove 3011 is provided on the front side of the impurity collection shell 301, a second flow-through hole 3012 is provided through the rear side wall of the inner wall of the collection groove 3011, a threaded connection ring 304 is provided on the front side edge of the second flow-through hole 3012, and a filtration component 5 is threadedly connected to the outer side wall of the threaded connection ring 304;

[0023] The locking component 4 includes a first fixing block 401, a second fixing block 402, and a fixing bolt 403. There are two first fixing blocks 401 and two second fixing blocks 402. The two first fixing blocks 401 are symmetrically arranged on the left and right sides of the installation shell 2, and the two second fixing blocks 402 are symmetrically arranged on the left and right sides of the impurity collection shell 301. Through holes for screw holes 4011 are formed in the front side walls of the first fixing blocks 401, and through holes for screw holes 4021 are formed in the front side walls of the second fixing blocks 402. The positions of the screw holes 4011 and the screw holes 4021 correspond to each other. The outer side wall of the fixing bolt 403 is threadedly connected to the inner side walls of the screw holes 4011 and the screw holes 4021;

[0024] The filtering component 5 includes a connecting frame 501. A filter screen 502 is fixedly connected to the inner side wall of the connecting frame 501. A connecting rod 503 is fixedly connected to the front side wall of the connecting frame 501. A threaded connection groove 5011 is formed in the rear side wall of the connecting frame 501, and the inner side wall of the threaded connection groove 5011 is threadedly connected to the outer side wall of the threaded connection ring 304. By providing the installation shell 2 and the impurity filtering and collecting component 3, when the flow pipe 101 is in fluid flow, before the water flow enters the gate plate, the impurity filtering and collecting component 3 filters and collects the particles in the water. The process is as follows: The filter screen 502 filters the particles in the water, and the filtered particles are collected in the collection groove 3011, avoiding the situation that when the gate plate is pressed down onto the valve seat, it is easy to clamp the impurities in the medium, resulting in the gate plate and the valve seat not being able to fit fully, affecting the sealing performance; by providing the locking component 4, the filtering component 5, and the threaded connection ring 304, when it is necessary to clean the impurities, rotate and remove the fixing bolt 403 to disengage it from the screw holes 4011 and the screw holes 4021, then the locking of the impurity collection shell 301 can be released, and it can be pulled out from the installation shell 2 to clean the impurities. When it is necessary to replace the filter screen 502, the filter screen 502 can be rotated using the connecting rod 503 for disassembly and replacement, which is convenient for impurity cleaning and component maintenance.

[0025] Working principle: When in use, when the flow pipe 101 is in fluid flow, before the water flow enters the gate plate, the filter screen 502 filters the particles in the water, and the filtered particles are collected in the collection groove 3011, avoiding the situation that when the gate plate is pressed down onto the valve seat, it is easy to clamp the impurities in the medium, resulting in the gate plate and the valve seat not being able to fit fully, affecting the sealing performance. When it is necessary to clean the impurities, rotate and remove the fixing bolt 403 to disengage it from the screw holes 4011 and the screw holes 4021, then the locking of the impurity collection shell 301 can be released, and it can be pulled out from the installation shell 2 to clean the impurities. When it is necessary to replace the filter screen 502, the filter screen 502 can be rotated using the connecting rod 503 for disassembly and replacement.

[0026] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A wedge gate valve with stable sealing performance, comprising: Wedge gate valve body (1), characterized in that a flow-through pipe (101) is provided on the wedge gate valve body (1), an installation shell (2) is provided inside the flow-through pipe (101), a first flow-through hole (201) is penetrated and opened on the front side wall of the installation shell (2), an impurity filtering and collecting assembly (3) is provided inside the installation shell (2), and a locking assembly (4) is provided between the left and right side walls of the installation shell (2) and the impurity filtering and collecting assembly (3); The impurity filtering and collecting assembly (3) includes an impurity collecting shell (301), a top plate (302) is fixedly connected to the top end of the impurity collecting shell (301), a handle (303) is fixedly connected to the top end of the top plate (302), a collecting groove (3011) is opened on the front side of the impurity collecting shell (301), a second flow-through hole (3012) is penetrated and opened on the rear side wall of the inner wall of the collecting groove (3011), a threaded connection ring (304) is provided on the front side of the edge of the second flow-through hole (3012), and a filtering assembly (5) is threadedly connected to the outer side wall of the threaded connection ring (304); The filtering assembly (5) includes a connection frame (501), a filter screen (502) is fixedly connected to the inner side wall of the connection frame (501), a connecting rod (503) is fixedly connected to the front side wall of the connection frame (501), and a threaded connection groove (5011) is opened on the rear side wall of the connection frame (501).

2. The wedge gate valve with stable sealing performance according to claim 1, wherein, The locking assembly (4) includes a first fixing block (401), a second fixing block (402), and a fixing bolt (403). There are two first fixing blocks (401) and two second fixing blocks (402). The two first fixing blocks (401) are symmetrically arranged on the left and right sides of the installation shell (2), and the two second fixing blocks (402) are symmetrically arranged on the left and right sides of the impurity collecting shell (301). A first screw hole (4011) is penetrated and opened on the front side wall of the first fixing block (401), and a second screw hole (4021) is penetrated and opened on the front side wall of the second fixing block (402).

3. The wedge gate valve with stable sealing performance according to claim 2, characterized in that, The positions of the first screw hole (4011) and the second screw hole (4021) correspond to each other, and the outer side wall of the fixing bolt (403) is threadedly connected to the inner side walls of the first screw hole (4011) and the second screw hole (4021).

4. A wedge gate valve with stable sealing performance according to claim 1, characterized in that, The inner side wall of the threaded connection groove (5011) is threadedly connected to the outer side wall of the threaded connection ring (304).

5. A wedge gate valve with stable sealing performance according to claim 1, characterized in that, A sealing rubber ring (305) is adhered to the upper side of the side wall of the impurity collecting shell (301).

6. A wedge gate valve with stable sealing performance according to claim 1, characterized in that, The outer side wall of the impurity collecting shell (301) is slidably connected to the inner side wall of the installation shell (2).

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