CN220523338U - A high sealing gate valve - Google Patents

Abstract

The utility model relates to the technical field of gate valves, and discloses a gate valve with high sealing performance, which includes a valve body with a sealing component installed on the inner wall of the valve body. Through the cavity, ball, through hole, rubber pad, fixed rod, limit ring, screw, anti-rust coating, sealing gasket, positioning sleeve and locking bolt, the fixed rod and the connecting rod are movable connected through the screw. When the connecting rod rotates, it drives the ball to turn over in the cavity to seal the cavity. When the ball is closed, it is attached to the sealing gasket through the rubber pad to prevent liquid from seeping out. Twist the locking bolt to drive the sealing gasket to press down. , clamp the edges around the ball to prevent leakage when the water pressure is too high. The anti-rust coating prevents corrosion and rust in the valve body. When the valve body is closed and water accumulates for a long time, it can prevent rust and has strong sealing performance. , to avoid water seepage, the ball in the valve body is more tightly closed with the inside of the valve body, and is highly practical, thereby achieving the best use effect.

Description

A high sealing gate valve

Technical field

The utility model relates to the technical field of gate valves, specifically a high sealing gate valve.

Background technique

The gate valve is an opening and closing gate plate. The movement direction of the gate plate 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 through the contact between the valve seat and the gate plate. It is usually sealed The surface will be surfacing with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate plate has a rigid gate plate and an elastic gate plate. According to the different gate plates, the gate valve is divided into a rigid gate valve and an elastic gate valve;

However, in existing gate valves, the valve body is prone to rust when water accumulates in the closed state for a long time, and the sealing performance is poor and water is easy to leak. Achieve optimal use results.

Utility model content

In order to achieve the above objectives, the present utility model is realized through the following technical solutions: a high-sealing gate valve, including a valve body, a sealing assembly is installed on the inner wall of the valve body, and a lower bearing is movably installed at the bottom of the sealing assembly. Chucks are fixedly installed at both ends of the outer wall, and threaded holes are provided around the outer wall of the chuck. A positioning seat is fixedly installed at the top of the valve body, and a connecting rod is pierced at the top of the positioning seat. A hand is mounted on the top of the connecting rod to rotate. wheel.

Further, the sealing assembly includes a cavity, the inner wall of the sealing assembly is provided with a cavity, and a closing assembly is installed at the center of the inner wall of the cavity. The surface of the cavity is coated with an anti-rust coating, and the closing assembly has upper and lower sides. The end is fitted with a sealing gasket, the outer wall of the cavity is covered with a positioning sleeve, and the upper and lower ends of the positioning sleeve are threadedly connected with locking bolts.

Further, the closure assembly includes a sphere, the sphere is installed on the inner wall of the closure assembly, and through holes are provided on both sides of the outer wall of the sphere. There are rubber pads around the outer wall of the sphere, and a fixed rod is fixedly installed on the top of the sphere, so The outer wall of the fixed rod is covered with a limiting ring, and the top of the fixed rod is fixedly connected with a screw rod.

Furthermore, the bottom end of the ball is rotatably connected to the lower bearing, and the ball is made of stainless steel.

Further, the fixed rod is movably connected to the connecting rod through a screw rod, and the fixed rod is made of titanium alloy.

Further, the bottom end of the locking bolt passes through a positioning sleeve and is movably connected to the sealing gasket, and a threaded thread is provided at the connection between the locking bolt and the positioning sleeve.

Furthermore, the outer wall of the handwheel is wrapped with an anti-slip cover, and the anti-slip cover is made of silicone.

beneficial effects

The utility model provides a high-sealing gate valve, which has the following beneficial effects:

Through the cavity, ball, through hole, rubber pad, fixed rod, limit ring, screw, anti-rust coating, sealing gasket, positioning sleeve and locking bolt, the fixed rod and the connecting rod are movable connected through the screw. When the connecting rod rotates, it drives the ball to turn over in the cavity to seal the cavity. When the ball is closed, it is attached to the sealing gasket through the rubber pad to prevent liquid from seeping out. Twist the locking bolt to drive the sealing gasket to press down. , clamp the edges around the ball to prevent leakage when the water pressure is too high. The anti-rust coating prevents corrosion and rust in the valve body. It can prevent rust when water accumulates in the closed state for a long time, and has strong sealing performance. , to avoid water seepage, the ball in the valve body is more tightly closed with the inside of the valve body, and is highly practical, thereby achieving the best use effect.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model;

Figure 2 is a schematic structural diagram of the seal in the present utility model;

Figure 3 is a schematic structural diagram of the closing component of the present utility model.

In the picture: 1. Valve body; 2. Sealing component; 21. Cavity; 22. Closing component; 221. Sphere; 222. Through hole; 223. Rubber gasket; 224. Fixed rod; 225. Limit ring; 226. Screw; 23. Anti-rust coating; 24. Sealing gasket; 25. Positioning sleeve; 26. Locking bolt; 3. Lower bearing; 4. Chuck; 5. Threaded hole; 6. Positioning seat; 7. Connecting rod; 8. Hand wheel.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Please refer to Figures 1 to 3. The present utility model provides a technical solution: a high-sealing gate valve, including a valve body 1. A sealing assembly 2 is installed on the inner wall of the valve body 1, and a lower bearing is movably installed at the bottom of the sealing assembly 2. 3. Use the lower bearing 3 to support the bottom of the ball 221 when it flips over. Chucks 4 are fixedly installed on both ends of the outer wall of the valve body 1. The valve body 1 is connected to the pipeline through the chuck 4 to transmit liquid, and the chuck 4. Threaded holes 5 are provided around the outer wall. A positioning seat 6 is fixedly installed on the top of the valve body 1. A connecting rod 7 is passed through the top of the positioning seat 6. A handwheel 8 is rotated on the top of the connecting rod 7. Twist the handwheel 8 to drive the connecting rod. 7 is rotated to facilitate the flipping of the ball 221. The outer wall of the hand wheel 8 is wrapped with an anti-slip cover, and the anti-slip cover is specifically made of silicone components, which can prevent the hand from slipping during use, and is highly practical.

The sealing component 2 includes a cavity 21. The cavity 21 is provided on the inner wall of the sealing component 2, and a closing component 22 is installed at the center of the inner wall of the cavity 21. The surface of the cavity 21 is coated with an anti-rust coating 23, and the upper and lower ends of the closing component 22 are attached There is a sealing gasket 24, and the outer wall of the cavity 21 is covered with a positioning sleeve 25, and the upper and lower ends of the positioning sleeve 25 are threadedly connected with locking bolts 26. Twist the locking bolt 26 to drive the sealing gasket 24 to press down, and the surrounding edges of the sphere 221 Clamping is performed to avoid leakage when the water pressure is too high, and the anti-rust coating 23 is used to prevent corrosion and rust in the valve body 1. The bottom end of the locking bolt 26 passes through the set sleeve 25 and is movably connected to the sealing gasket 24, and is locked The threaded connection between the bolt 26 and the positioning sleeve 25 is provided to prevent rotation and make the fixation more reliable.

The closing component 22 includes a sphere 221. The sphere 221 is installed on the inner wall of the closing assembly 22. Through holes 222 are provided on both sides of the outer wall of the sphere 221. There are rubber pads 223 attached to the outer wall of the sphere 221, and a fixing rod 224 is fixedly installed on the top of the sphere 221. The outer wall of the fixed rod 224 is covered with a limiting ring 225, and the top of the fixed rod 224 is fixedly connected with a screw 226. The fixed rod 224 is movably connected to the connecting rod 7 through the screw 226. When the connecting rod 7 rotates, the ball 221 is driven in the cavity 21. Turn over to seal the cavity 21. When the ball 221 is in the closed state, it is fitted with the sealing gasket 24 through the rubber pad 223 to prevent liquid from seeping out. The bottom end of the ball 221 is connected to the lower bearing 3 in a rotational manner, and the ball 221 is specifically made of Stainless steel components can prevent rust and extend service life. The fixed rod 224 is movably connected to the connecting rod 7 through the screw rod 226, and the fixed rod 224 is made of titanium alloy components, which is corrosion-resistant, strong and durable.

In summary, the operating steps of this high-sealing gate valve are as follows;

When in use, twist the hand wheel 8 to drive the connecting rod 7 to rotate to facilitate the flipping of the ball 221. The lower bearing 3 is used to support the bottom of the ball 221 when it is flipped. The valve body 1 is connected to the pipe through the chuck 4. To transfer liquid, the fixed rod 224 is movably connected to the connecting rod 7 through the screw 226. When the connecting rod 7 rotates, the ball 221 is driven to flip in the cavity 21, sealing the cavity 21, and the ball 221 passes through in the closed state. The rubber gasket 223 fits the sealing gasket 24 to prevent liquid from seeping out. Twist the locking bolt 26 to drive the sealing gasket 24 to press down and clamp the edges around the ball 221 to avoid leakage when the water pressure is too high. The rust coating 23 prevents corrosion and rust in the valve body 1 .

Claims (7)

1. High leakproofness gate valve, including valve body (1), its characterized in that: sealing component (2) are installed to valve body (1) inner wall, and sealing component (2) bottom movable mounting has lower bearing (3), valve body (1) outer wall both ends fixed mounting has chuck (4), and threaded hole (5) have been seted up all around to chuck (4) outer wall, valve body (1) top fixed mounting has positioning seat (6), and positioning seat (6) top wears to have connecting rod (7), connecting rod (7) top rotates installs hand wheel (8).

2. A high tightness gate valve according to claim 1, characterized in that: the sealing assembly (2) comprises a cavity (21), the cavity (21) is formed in the inner wall of the sealing assembly (2), a closing assembly (22) is arranged in the center of the inner wall of the cavity (21), an anti-rust coating (23) is coated on the surface of the cavity (21), sealing gaskets (24) are attached to the upper end and the lower end of the closing assembly (22), a positioning sleeve (25) is sleeved on the outer wall of the cavity (21), and locking bolts (26) are connected to the upper end and the lower end of the positioning sleeve (25) in a threaded mode.

3. A high tightness gate valve according to claim 2, characterized in that: the utility model discloses a sealing device for the automobile, including closing subassembly (22), closing subassembly (22) are including spheroid (221), spheroid (221) are installed to closing subassembly (22) inner wall, and through-hole (222) have been seted up to spheroid (221) outer wall both sides, laminating all around is equipped with cushion (223) on spheroid (221) outer wall, and spheroid (221) top fixed mounting has dead lever (224), dead lever (224) outer wall cover has spacing collar (225), and dead lever (224) top fixedly connected with screw rod (226).

4. A high tightness gate valve according to claim 3, characterized in that: the bottom end of the sphere (221) is rotationally connected with the lower bearing (3), and the sphere (221) is a stainless steel member.

5. A high tightness gate valve according to claim 3, characterized in that: the fixing rod (224) is movably connected with the connecting rod (7) through a screw rod (226), and the fixing rod (224) is a titanium alloy member.

6. A high tightness gate valve according to claim 2, characterized in that: the bottom end of the locking bolt (26) is penetrated with a positioning sleeve (25) which is movably connected with the sealing gasket (24), and a threaded wire is arranged at the joint of the locking bolt (26) and the positioning sleeve (25).

7. A high tightness gate valve according to claim 1, characterized in that: the outer wall of the hand wheel (8) is wrapped with an anti-slip sleeve, and the anti-slip sleeve is a silica gel component.