Gate valve plate with good sealing performance

Abstract

The gate valve plate with the good sealing performance comprises a valve body, a water inlet, a water outlet and a valve plate body, the water inlet is installed at one end of the valve body, the water outlet is installed at the end, away from the water inlet, of the valve body, the valve plate body is arranged in an inner cavity of the valve body, the valve plate body is installed on the outer diameter surface of a threaded rod in a threaded connection mode, and the threaded rod is longitudinally installed in the inner cavity of the valve body. A plate storage chamber is arranged above the valve plate, an annular groove is formed in the side end face of the valve plate, annular balloons are arranged on the side wall of an inner cavity of the valve body and the side wall of an inner cavity of the plate storage chamber, and a sealing assembly is arranged on the face, making contact with the valve plate, of the valve body. Firstly, the screw rod is rotated to enable the valve plate to move up and down, so that the valve plate is used for blocking the inner cavity of the valve body, the sealing assembly on the contact surface of the valve plate and the valve body is used for sealing the valve, then the micro air pump is started, the micro air pump inflates the annular balloon through the air pipe, and the annular groove in one side of the valve plate is blocked; and therefore, the device is further blocked, so that the sealing performance of the device is ensured.

Description

Technical Field

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

[0002] The gate valve disc, also known as the gate, is a closing part in the gate valve. The gate valve is a common valve, which is mainly composed of a valve body, a gate, a valve stem, a sealing ring and other parts. The gate moves up and down in a plane perpendicular to the center line of the valve channel. Therefore, the gate valve disc refers to the gate used to control the flow of fluid in the gate valve. It connects or cuts off the fluid channel by moving up and down along the valve seat sealing surface;

[0003] For example, application number CN202222937737.9 discloses a highly sealed double-gate ceramic valve, which can not only reduce the gap between the gate plate and the sealing gasket, ensure the sealing of the double-gate ceramic valve, and improve the sealing effect of the double-gate ceramic valve, but also prevent the gate plate from corrosion after long-term use, thereby increasing the service life of the gate plate in the double-gate ceramic valve and the service life of the double-gate ceramic valve; however, when the above-mentioned device blocks the valve through the valve plate, in order to ensure that the valve plate can move up and down smoothly so that the valve can be closed, the spacing or moving distance of the valve plate when blocking the valve is constant, and the valve plate often moves up and down, which can easily cause wear between the valve plate and the valve, and thus easily lead to poor valve sealing for a long time.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a gate valve plate with good sealing performance is proposed to achieve a more practical purpose. Utility Model Content

[0005] The utility model aims to provide a gate valve plate with good sealing performance, so as to solve the problem of preventing the valve from being worn and causing poor sealing performance of the valve in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gate valve plate with good sealing performance, comprising a valve body, a water inlet, a water outlet and a valve plate, the water inlet being installed at one end of the valve body, and the water outlet being installed at the end of the valve body away from the water inlet, the inner cavity of the valve body being provided with a valve plate, and the valve plate being threadedly connected and installed on the outer diameter surface of a screw, the screw being longitudinally installed in the inner cavity of the valve body, a storage plate chamber being provided above the valve plate, the side end surface of the valve plate being provided with an annular groove, the side wall of the inner cavity of the valve body and the side wall of the inner cavity of the storage plate chamber being provided with an annular balloon, a sealing component being provided on a side of the valve body contacting the valve plate, the annular balloon being connected to a micro air pump through an air pipe, one end of the screw being limitedly connected to the valve plate through a bearing, and the other end of the screw being longitudinally penetrated through the storage plate chamber and the top end surface of the valve body being provided with a handle, the outer diameter surface of the screw being provided with a first gear, and the first gear being meshedly connected with a second gear, the second gear being installed at the output end of a micro servo motor, and a connecting flange being provided on one side of the water inlet and the water outlet.

[0007] Furthermore, the edges of the annular groove are rounded, and the shape and size of the annular groove are the same as those of the annular balloon. The screw rod longitudinally penetrates the center of the valve plate, and the valve plate and the screw rod form a threaded connection structure.

[0008] Furthermore, the annular groove and the annular balloon are installed on the side close to the water outlet, the storage plate chamber and the inner cavity of the valve body form a connecting structure, and the contact surface between the screw and the storage plate chamber and the contact surface between the valve plate and the inner cavity of the valve body are both provided with sealing components.

[0009] Furthermore, the first gear and the second gear form a gear meshing connection structure, and the micro servo motor forms a gear transmission structure through the first gear, the second gear and the screw.

[0010] Furthermore, the annular balloon forms a connecting structure with the micro air pump through an air tube, the screw is fixedly connected to the inner diameter surface of the bearing, and the inner cavity of the valve body is fixedly connected to the outer diameter surface of the bearing, and the screw forms a rotating structure that rotates around the center of the bearing through the bearing and the valve body.

[0011] Furthermore, the diameter of the valve plate is larger than the diameter of the inner cavity of the valve body, a groove is provided at the bottom of the inner cavity of the valve body, and the width of the groove is the same as the thickness of the valve plate, and a limiting bolt is transversely penetrated through one side of the connecting flange.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the valve plate of the gate valve with good sealing performance is firstly moved up and down by rotating the screw rod, so that the inner cavity of the valve body is blocked by the valve plate, wherein the valve is sealed by the sealing component of the contact surface between the valve plate and the valve body, and then the micro air pump is started, and the micro air pump uses the air pipe to inflate the annular balloon, thereby blocking the annular groove on one side of the valve plate, thereby further blocking the device, so as to ensure the sealing performance of the device;

[0013] When the gate valve plate with good sealing performance closes the valve, the screw is rotated by the handle. Since the screw and the valve plate are threadedly connected, the screw is rotated to move the valve plate up and down, and then the valve body is blocked by the valve plate, so that the water inlet and the water outlet are connected and disconnected. When the valve plate drops to the lowest end, the valve is first sealed by the sealing component on the contact surface between the valve plate and the valve body to ensure the sealing performance of the device, and then the micro air pump is used to inflate the annular balloon through the air pipe to block the annular groove on one side of the valve plate to further seal the valve, so that the device is sealed by the sealing component, the annular groove and the annular balloon, and the device is also provided with a micro servo motor. Since the micro servo motor forms a gear transmission structure with the screw through the first gear and the second gear, so as to assist the handle to drive the valve plate to rise and fall, the gate valve has better sealing performance through the above-mentioned sealing component, the annular groove and the annular balloon. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the closed structure of a gate valve plate with good sealing performance in the front view of the utility model;

[0015] Figure 2 This is a schematic diagram of the front view passage structure of a gate valve plate with good sealing performance according to the utility model;

[0016] Figure 3 This is a schematic diagram of the side view structure of a ring-shaped balloon of a gate valve plate with good sealing performance according to the utility model;

[0017] Figure 4 This is a schematic diagram of the side view structure of the annular groove of a gate valve plate with good sealing performance of the utility model;

[0018] Figure 5 The utility model is a schematic diagram of the front view structure of the annular groove of the valve plate of a gate valve with good sealing performance.

[0019] In the figure: 1. valve body; 2. water inlet; 3. water outlet; 4. valve plate; 5. screw; 6. storage plate chamber; 7. annular groove; 8. annular balloon; 9. sealing assembly; 10. air pipe; 11. micro air pump; 12. handle; 13. first gear; 14. second gear; 15. micro servo motor; 16. connecting flange. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 5 The utility model provides a technical solution: a gate valve plate with good sealing performance, comprising a valve body 1, a water inlet 2, a water outlet 3 and a valve plate 4, the water inlet 2 is installed at one end of the valve body 1, and the water outlet 3 is installed at the end of the valve body 1 away from the water inlet 2, the inner cavity of the valve body 1 is provided with a valve plate 4, and the valve plate 4 is threadedly connected and installed on the outer diameter surface of the screw 5, the screw 5 is longitudinally installed in the inner cavity of the valve body 1, a storage plate chamber 6 is arranged above the valve plate 4, and the side end surface of the valve plate 4 is provided with an annular groove 7, and the side wall of the inner cavity of the valve body 1 and the storage plate An annular balloon 8 is arranged on the side wall of the inner cavity of the chamber 6, a sealing assembly 9 is arranged on the side of the valve body 1 contacting the valve plate 4, the annular balloon 8 is connected to a micro air pump 11 through an air pipe 10, one end of the screw 5 is limitedly connected to the valve plate 4 through a bearing, and the other end of the screw 5 longitudinally penetrates the storage plate chamber 6 and the top surface of the valve body 1 and is equipped with a handle 12, the outer diameter surface of the screw 5 is provided with a first gear 13, and the first gear 13 is meshedly connected with a second gear 14, and the second gear 14 is installed at the output end of the micro servo motor 15, and the screw 5 is provided with a first gear 13. A connecting flange 16 is provided on one side of the water inlet 2 and the water outlet 3. When closing the valve, the screw 5 is rotated by the handle 12. Since the screw 5 and the valve plate 4 are threadedly connected, the screw 5 is rotated to move the valve plate 4 up and down, and the valve body 1 is blocked by the valve plate 4 to make the water inlet 2 and the water outlet 3 connected and disconnected. When the valve plate 4 drops to the lowest end, the valve is first sealed by the sealing component 9 on the contact surface between the valve plate 4 and the valve body 1 to ensure the sealing performance of the device. Then, the annular balloon 8 is inflated through the air pipe 10 by the micro air pump 11 to block the annular groove 7 on one side of the valve plate 4, so as to further seal the valve. The device is sealed by the sealing component 9, the annular groove 7 and the annular balloon 8, and the device is also provided with a micro servo motor 15. Since the micro servo motor 15 forms a gear transmission structure with the screw 5 through the first gear 13 and the second gear 14, the auxiliary handle 12 drives the valve plate 4 to rise and fall. By using the above-mentioned sealing component 9, the annular groove 7 and the annular balloon 8, the gate valve has better sealing performance.

[0022] The edges of the annular groove 7 are rounded, and the shape and size of the annular groove 7 are the same as those of the annular balloon 8. The screw 5 longitudinally penetrates the center of the valve plate 4, and the valve plate 4 and the screw 5 form a threaded connection structure. The annular groove 7 and the annular balloon 8 are installed on the side close to the water outlet 3. The storage plate chamber 6 and the inner cavity of the valve body 1 form a communication structure. The contact surface between the screw 5 and the storage plate chamber 6 and the contact surface between the valve plate 4 and the inner cavity of the valve body 1 are both provided with a sealing component 9. The first gear 13 and the second gear 14 form a gear meshing connection structure. The micro servo motor 15 is connected to the valve body 1 through the first gear 13 and the second gear 14. A gear 13 and a second gear 14 form a gear transmission structure with the screw 5, the annular balloon 8 forms a connecting structure with the micro air pump 11 through the trachea 10, the screw 5 is fixedly connected to the inner diameter surface of the bearing, and the inner cavity of the valve body 1 is fixedly connected to the outer diameter surface of the bearing, and the screw 5 forms a rotating structure that rotates around the center of the bearing with the valve body 1 through the bearing, the diameter of the valve plate 4 is larger than the diameter of the inner cavity of the valve body 1, and a groove is provided at the bottom of the inner cavity of the valve body 1, and the width of the groove is the same as the thickness of the valve plate 4, and a limiting bolt is transversely penetrated on one side of the connecting flange 16.

[0023] Working principle: When using a gate valve plate with good sealing performance, first connect the water inlet 2 and the water outlet 3 of the valve body 1 to the pipeline through the connecting flange 16. When closing the valve, rotate the screw 5 through the handle 12. Since the screw 5 and the valve plate 4 are threadedly connected, the screw 5 is rotated to move the valve plate 4 up and down, and the valve body 1 is blocked by the valve plate 4 to make the water inlet 2 and the water outlet 3 open and close. When the valve plate 4 drops to the lowest end, the valve is sealed by the sealing component 9 on the contact surface of the valve plate 4 and the valve body 1, and then the valve is closed by the micro The air pump 11 inflates the annular balloon 8 through the air pipe 10 to block the annular groove 7 on one side of the valve plate 4, and the device is sealed by using the sealing component 9, the annular groove 7 and the annular balloon 8. The device is also provided with a micro servo motor 15. Since the micro servo motor 15 forms a gear transmission structure with the screw 5 through the first gear 13 and the second gear 14, the auxiliary handle 12 drives the valve plate 4 to rise and fall. Through the action of the above-mentioned sealing component 9, the annular groove 7 and the annular balloon 8, the gate valve has better sealing performance.

Claims

1. A gate valve plate with good sealing performance, comprising a valve body (1), a water inlet (2), a water outlet (3) and a valve plate (4), characterized in that: The water inlet (2) is installed at one end of the valve body (1), and the water outlet (3) is installed at the end of the valve body (1) away from the water inlet (2). The inner cavity of the valve body (1) is provided with a valve plate (4), and the valve plate (4) is threadedly connected and installed on the outer diameter surface of the screw (5). The screw (5) is longitudinally installed in the inner cavity of the valve body (1). A storage plate chamber (6) is provided above the valve plate (4). The side end surface of the valve plate (4) is provided with an annular groove (7). The side wall of the inner cavity of the valve body (1) and the side wall of the inner cavity of the storage plate chamber (6) are provided with an annular balloon (8). The side of the valve body (1) contacting the valve plate (4) is provided with a sealing The annular balloon (8) is connected to a micro air pump (11) via an air pipe (10), one end of the screw (5) is limitedly connected to the valve plate (4) via a bearing, and the other end of the screw (5) longitudinally penetrates the storage plate chamber (6) and the top surface of the valve body (1) and is provided with a handle (12), the outer diameter surface of the screw (5) is provided with a first gear (13), and the first gear (13) is meshingly connected with a second gear (14), and the second gear (14) is installed at the output end of the micro servo motor (15), and one side of the water inlet (2) and the water outlet (3) are both provided with a connecting flange (16).

2. A gate valve plate with good sealing performance according to claim 1, characterized in that: The edges of the annular groove (7) are rounded, and the shape and size of the annular groove (7) are the same as the shape and size of the annular balloon (8). The screw (5) longitudinally penetrates the center of the valve plate (4), and the valve plate (4) and the screw (5) form a threaded connection structure.

3. A gate valve plate with good sealing performance according to claim 2, characterized in that: The annular groove (7) and the annular balloon (8) are installed on a side close to the water outlet (3); the plate storage chamber (6) and the inner cavity of the valve body (1) form a communicating structure; the contact surface between the screw (5) and the plate storage chamber (6) and the contact surface between the valve plate (4) and the inner cavity of the valve body (1) are both provided with a sealing assembly (9).

4. A gate valve plate with good sealing performance according to claim 3, characterized in that: The first gear (13) and the second gear (14) form a gear meshing connection structure, and the micro servo motor (15) forms a gear transmission structure with the screw rod (5) through the first gear (13) and the second gear (14).

5. A gate valve plate with good sealing performance according to claim 4, characterized in that: The annular balloon (8) forms a connecting structure with the micro air pump (11) via an air tube (10); the screw (5) is fixedly connected to the inner diameter surface of the bearing; the inner cavity of the valve body (1) is fixedly connected to the outer diameter surface of the bearing; and the screw (5) forms a rotating structure that rotates around the center of the bearing with the valve body (1) via the bearing.

6. A gate valve plate with good sealing performance according to claim 5, characterized in that: The diameter of the valve plate (4) is larger than the diameter of the inner cavity of the valve body (1); a groove is provided at the bottom of the inner cavity of the valve body (1); and the width of the groove is the same as the thickness of the valve plate (4); and a limiting bolt is provided transversely through one side of the connecting flange (16).

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