Bidirectional sealing gate valve

Abstract

The utility model relates to a two-way sealing gate valve, which belongs to the technical field of gate valves and comprises a valve body, a top pipe fixedly connected to the top of the valve body, a second flange plate fixedly connected to the top of the top pipe, inner grooves formed inside the top pipe and the valve body, positioning edges fixedly connected to two ends of the inner wall of each inner groove, and a gate plate arranged inside each inner groove. The flashboard is composed of two symmetrically-designed parts, the end faces of the two sides of the flashboard are inclined faces, chamfers are arranged on the edges of the inclined faces, the inner grooves are matched with the inclined faces in an attached mode, and positioning grooves used in cooperation with the positioning edges are formed in the top of the flashboard. The gate valve has the advantages that when the gate plate extends into the valve body to control the valve to be closed, the inclined faces on the two sides of the gate plate can be tightly attached to the valve body, so that the bidirectional sealing effect is achieved, and the positioning edges are further arranged on the inner wall of the valve body and used for being matched with the positioning grooves formed in the middle of the gate plate. When the flashboard extends into the valve body, the guiding and positioning effects are achieved, and therefore the installation efficiency and stability of the flashboard are improved.

Description

Technical Field

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

[0002] The gate valve is a gate valve with a gate disc as the opening and closing part. The movement direction of the gate disc is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by contact between the valve seat and the gate disc. Usually, the sealing surface will be welded with metal materials to increase wear resistance. The opening and closing part of the gate valve is the gate disc. The movement direction of the gate disc is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate disc has two sealing surfaces. The most commonly used mode is that the two sealing surfaces of the gate valve form a wedge shape. The gate of the wedge gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can produce a slight deformation to improve its processability. This gate is called an elastic gate. When the gate valve is closed, the sealing surface can only rely on the medium pressure to seal. This is self-sealing. Most gate valves use forced sealing, that is, when the valve is closed, external force is used to forcibly press the gate disc to the valve seat to ensure the sealing of the sealing surface.

[0003] Traditional gate valves are generally one-way seals, which are only suitable for flow channels with fixed medium flow directions, and require that the medium pressure cannot be too high. The gate has poor pressure resistance, and the liquid in the traditional valve body contains impurities. If not cleaned, it will cause corrosion and wear on the gate surface, reducing the service life of the gate. Utility Model Content

[0004] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide a bidirectional sealing gate valve.

[0005] The technical solution of the present utility model is as follows: a two-way sealing gate valve, comprising a valve body, a top pipe fixedly connected to the top of the valve body, a flange plate two fixedly connected to the top of the top pipe, an inner groove provided in the top pipe and the interior of the valve body, positioning ridges fixedly connected at both ends of the inner wall of the inner groove, a gate plate provided in the interior of the inner groove, the gate plate consisting of two symmetrically designed parts, and the end faces on both sides are inclined surfaces, the edges of the inclined surfaces are chamfered, the inner groove fits snugly against the inclined surface, and a positioning groove used in conjunction with the positioning ridge is provided on the top of the gate plate.

[0006] By adopting the above technical solution, when the gate plate is extended into the valve body to control the closing of the valve, the inclined surfaces on both sides of the gate plate will fit tightly with the valve body, thereby playing a role of two-way sealing, and a positioning ridge is also provided on the inner wall of the valve body, which is used to cooperate with the positioning groove formed in the middle of the gate plate to play a guiding and positioning role when the gate plate is extended into the valve body.

[0007] As a preferred embodiment, a cleaning mechanism is provided inside the valve body, and the cleaning mechanism includes a fixing part fixedly installed inside the valve body, an internal threaded hole is provided inside the fixing part, a collecting cylinder is provided inside the internal threaded hole, and an external thread is provided on the outside of the collecting cylinder for use with the internal threaded hole, and the internal threaded hole is threadedly connected to the collecting cylinder.

[0008] By adopting the above technical solution, a collecting cylinder is set in the fixing part, so that the transported liquid can be filtered, thereby reducing the adhesion of impurities on the gate plate surface, thereby reducing the corrosion and wear of the gate plate by impurities, and improving the service life of the gate plate. The internal threaded hole and the collecting cylinder are threaded, so that the collecting cylinder is conveniently detachable.

[0009] As a preferred embodiment, a pickup tube is fixedly connected to one side of the valve body, a sealing plate is hinged to the outer side of the pickup tube, and a handle 1 is fixedly connected to the outer side of the sealing plate.

[0010] By adopting the above technical solution, by opening the sealing plate, the staff can reach into the valve body, loosen the collecting tube and take it out.

[0011] As a preferred embodiment, a water quality sensor is fixedly installed on the top of the valve body, and a wireless signal transceiver is fixedly installed on the rear side of the valve body.

[0012] By adopting the above technical solution and setting a water quality sensor, the water quality of the conveying liquid in the valve body can be detected, and the detection result can be transmitted to the wireless terminal through the wireless signal transceiver.

[0013] As a preferred embodiment, the internal array of the collecting cylinder has filter holes, and the bottom of the filter holes is fixedly connected to a second handle.

[0014] By adopting the above technical solution and setting the filter holes, liquid transportation can be facilitated.

[0015] As a preferred embodiment, the outer sides of the fixing member and the collecting cylinder are both coated with an anti-corrosion layer, and the anti-corrosion layer is polyurethane anti-corrosion paint.

[0016] By adopting the above technical solution and using polyurethane anti-corrosion paint, the corrosion resistance of the fixing parts and the collecting tube can be increased to reduce the corrosion caused by liquid and impurities.

[0017] As a preferred embodiment, flange plates 1 are fixedly connected to both sides of the valve body, a visual window is provided inside the valve body, and the collecting cylinder and the fixing member are both made of transparent materials.

[0018] By adopting the above technical solution and setting the collecting tube and the fixing piece with transparent materials, the staff can clearly see the accumulation of impurities in the collecting tube.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are:

[0020] 1. In the present invention, when the gate is extended into the valve body to control the valve to close, the inclined surfaces on both sides of the gate will fit tightly with the valve body, thereby playing a role of bidirectional sealing, and a positioning ridge is also provided on the inner wall of the valve body, which is used to cooperate with the positioning groove formed in the middle of the gate to play a guiding and positioning role when the gate is extended into the valve body, thereby improving the installation efficiency and stability of the gate.

[0021] 2. In the utility model, by arranging a collecting cylinder in the fixing part, the transported liquid can be filtered, thereby reducing the phenomenon of impurities adhering to the gate plate surface, thereby reducing the corrosion and wear of the gate plate by impurities, and improving the service life of the gate plate. The internal threaded hole and the collecting cylinder threaded arrangement make the collecting cylinder conveniently detachable, which is convenient for cleaning impurities in the collecting cylinder or replacing the collecting cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model provides an overall three-dimensional diagram of a bidirectional sealing gate valve;

[0023] Figure 2 The utility model provides a top view of a bidirectional sealing gate valve;

[0024] Figure 3 A cross-sectional view of a bidirectional sealing gate valve is provided for the utility model;

[0025] Figure 4 The utility model provides a schematic structural diagram of a cleaning mechanism of a bidirectional sealing gate valve;

[0026] Figure 5 The utility model provides a schematic diagram of the gate structure of a bidirectional sealing gate valve.

[0027] Legend: 1. Valve body; 2. Flange 1; 3. Top pipe; 4. Flange 2; 5. Water quality sensor; 6. Pickup tube; 7. Visual window; 8. Inner groove; 9. Positioning edge; 10. Gate; 11. Positioning groove; 12. Chamfer; 13. Inclined surface; 14. Collecting tube; 15. Fixing piece; 16. Filter hole; 17. Internal threaded hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] Reference Figure 1-5 The top of the gate plate 10 is provided with a positioning groove 11 for cooperating with the positioning rib 9 when the gate plate 10 is inserted into the valve body 1 to control the valve closing.

[0030] Reference Figure 4 A cleaning mechanism is provided inside the valve body 1, and the cleaning mechanism includes a fixing part 15 fixedly installed inside the valve body 1, and an internal threaded hole 17 is provided inside the fixing part 15. A collecting cylinder 14 is provided inside the internal threaded hole 17, and an external thread used in conjunction with the internal threaded hole 17 is provided on the outside of the collecting cylinder 14. The internal threaded hole 17 is threadedly connected to the collecting cylinder 14. By arranging the collecting cylinder 14 in the fixing part 15, the transported liquid can be filtered, thereby reducing the adhesion of impurities on the surface of the gate plate 10, thereby reducing the corrosion and wear of the gate plate 10 by impurities, and improving the service life of the gate plate 10. The internal threaded hole 17 and the collecting cylinder 14 are threadedly arranged, so that the collecting cylinder 14 is conveniently disassembled, which is convenient for cleaning impurities in the collecting cylinder 14 or replacing the collecting cylinder 14.

[0031] Reference Figure 3 A picking tube 6 is fixedly connected to one side of the valve body 1, and a sealing plate is hinged on the outside of the picking tube 6. A handle 1 is fixedly connected to the outside of the sealing plate. By opening the sealing plate, the staff can reach into the valve body 1, loosen and remove the collecting tube 14, making the installation and disassembly of the collecting tube 14 more convenient.

[0032] Reference Figure 2A water quality sensor 5 is fixedly installed on the top of the valve body 1, and a wireless signal transceiver is fixedly installed on the rear side of the valve body 1. Through the setting of the water quality sensor 5, the water quality of the conveying liquid in the valve body 1 can be detected, and the detection result can be transmitted to the wireless terminal through the wireless signal transceiver so that the staff can understand the water quality.

[0033] Reference Figure 4 The internal array of the collecting tube 14 has a filter hole 16, and the bottom of the filter hole 16 is fixedly connected with a handle 2. The setting of the filter hole 16 can facilitate the transportation of liquid and filter impurities.

[0034] Reference Figure 4 The outer sides of the fixing member 15 and the collecting tube 14 are coated with an anti-corrosion layer, which is a polyurethane anti-corrosion paint. The use of the polyurethane anti-corrosion paint can increase the corrosion resistance of the fixing member 15 and the collecting tube 14 to reduce the corrosion caused by liquid and impurities.

[0035] Reference Figure 4 , flanges 2 are fixedly connected to both sides of the valve body 1, a visual window 7 is provided inside the valve body 1, and the collecting tube 14 and the fixing part 15 are both made of transparent materials. The transparent material setting of the collecting tube 14 and the fixing part 15 makes it easy for the staff to clearly see the accumulation of impurities in the collecting tube 14, so as to clean the impurities in the collecting tube 14 in time.

[0036] Working principle: First, the gate plate 10 is installed in the valve body 1 to control the valve closing. The inclined surfaces 13 on both sides of the gate plate 10 will fit tightly with the valve body 1, thereby playing a bidirectional sealing role. The inner wall of the valve body 1 is also provided with a positioning ridge 9, which is used to cooperate with the positioning groove 11 formed in the middle of the gate plate 10 to play a guiding and positioning role when the gate plate 10 is extended into the valve body 1, thereby improving the installation efficiency and stability of the gate plate 10. The use of polyurethane anti-corrosion paint can increase the corrosion resistance of the fixing part 15 and the collecting tube 14, thereby reducing the corrosion caused by liquid and impurities to the fixing part 15 and the collecting tube 14;

[0037] By arranging a collecting cylinder 14 in the fixing part 15, the transported liquid can be filtered, thereby reducing the adhesion of impurities on the surface of the gate plate 10, thereby reducing the corrosion and wear of the gate plate 10 by impurities, and improving the service life of the gate plate 10. By opening the sealing plate, the staff can reach into the valve body 1, loosen and remove the collecting cylinder 14, and the internal threaded hole 17 and the collecting cylinder 14 are threadedly arranged, so that the collecting cylinder 14 is conveniently disassembled, which is convenient for cleaning impurities in the collecting cylinder 14 or replacing the collecting cylinder 14. The transparent material setting of the collecting cylinder 14 and the fixing part 15 allows the staff to clearly see the accumulation of impurities in the collecting cylinder 14, so that the impurities in the collecting cylinder 14 can be cleaned in time.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] The above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A bidirectional sealing gate valve, comprising a valve body (1), characterized in that: The top of the valve body (1) is fixedly connected to a top pipe (3), and the top of the top pipe (3) is fixedly connected to a flange plate 2 (4). The top pipe (3) and the valve body (1) are both provided with an inner groove (8), and both ends of the inner wall of the inner groove (8) are fixedly connected to positioning ridges (9). A gate plate (10) is provided inside the inner groove (8), and the gate plate (10) is composed of two symmetrically designed parts, and the end faces on both sides are inclined surfaces (13). The edges of the inclined surfaces (13) are provided with chamfers (12). The inner groove (8) is fitted with the inclined surface (13), and the top of the gate plate (10) is provided with a positioning groove (11) used in conjunction with the positioning ridge (9).

2. A bidirectional sealing gate valve according to claim 1, characterized in that: A cleaning mechanism is provided inside the valve body (1), and the cleaning mechanism includes a fixing member (15) fixedly mounted inside the valve body (1), an internal threaded hole (17) is provided inside the fixing member (15), a collecting tube (14) is provided inside the internal threaded hole (17), an external thread for use with the internal threaded hole (17) is provided on the outside of the collecting tube (14), and the internal threaded hole (17) is threadedly connected to the collecting tube (14).

3. A bidirectional sealing gate valve according to claim 1, characterized in that: A pick-up tube (6) is fixedly connected to one side of the valve body (1), a sealing plate is hingedly connected to the outer side of the pick-up tube (6), and a handle 1 is fixedly connected to the outer side of the sealing plate.

4. A bidirectional sealing gate valve according to claim 1, characterized in that: A water quality sensor (5) is fixedly mounted on the top of the valve body (1), and a wireless signal transceiver is fixedly mounted on the rear side of the valve body (1).

5. A bidirectional sealing gate valve according to claim 2, characterized in that: The internal array of the collecting cylinder (14) has filter holes (16), and the bottom of the filter holes (16) is fixedly connected to a second handle.

6. A bidirectional sealing gate valve according to claim 2, characterized in that: The outer sides of the fixing member (15) and the collecting tube (14) are both coated with an anti-corrosion layer, and the anti-corrosion layer is a polyurethane anti-corrosion paint.

7. A bidirectional sealing gate valve according to claim 2, characterized in that: Both sides of the valve body (1) are fixedly connected to flange plates 1 (2), a visual window (7) is provided inside the valve body (1), and the collecting tube (14) and the fixing member (15) are both made of transparent materials.

Images