Soft sealing gate valve convenient to replace

Abstract

The utility model belongs to the technical field of soft sealing gate valves, and particularly relates to a soft sealing gate valve convenient to replace, which comprises a soft sealing gate valve body. A valve bonnet is arranged at the top of the soft sealing gate valve body; a first screw rod is in threaded connection with the interior of the valve cap; the top of the first lead screw is fixedly connected with a rotating disc. The bottom of the first lead screw is rotationally connected with a brake core plate. The surface of the soft sealing gate valve body is fixedly connected with a connecting plate; the bottom of the connecting plate is fixedly connected with a motor; the output end of the motor is fixedly connected with a second lead screw. The surface of the second lead screw is in threaded connection with a moving block. Connecting rods are fixedly connected to the two sides of the moving block; the problems that when a gate plate of an existing soft sealing gate valve is damaged in use and needs to be replaced, a user needs to twist a large number of bolts and nuts for disassembly, the operation is extremely troublesome, labor and time need to be wasted, and disassembly and replacement are inconvenient are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of soft-sealed gate valves, and specifically relates to a soft-sealed gate valve that is convenient for replacing the gate valve. Background Technique

[0002] A soft-sealed gate valve is an industrial valve. The opening and closing part of the soft-sealed gate valve is a gate plate. The moving direction of the gate plate is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, and cannot be used for regulation and throttling. The gate plate has two sealing surfaces. In the most common type of gate valve, the two sealing surfaces form a wedge shape, and the wedge angle varies with the valve parameters.

[0003] At present, in the prior art, soft-sealed gate valves are divided into two types: open-stem soft-sealed gate valves and non-rising-stem soft-sealed gate valves. Usually, there is a trapezoidal thread on the lifting rod. Through the nut in the middle of the gate plate and the guide groove on the valve body, the rotary motion is changed into a linear motion, that is, the operating torque is changed into an operating thrust. When opening the valve, when the lifting height of the gate plate is equal to 1:1 times the valve diameter, the fluid passage is completely unobstructed. However, during operation, this position cannot be monitored. In actual use, the top of the valve stem is used as a mark, that is, the position where it cannot be turned, as its fully open position. To consider the locking phenomenon caused by temperature changes, usually, after opening to the top position, it is turned back 1 / 2 - 1 turn as the fully open valve position. Therefore, the fully open position of the valve is determined according to the position of the gate plate. This type of valve should generally be installed horizontally in the pipeline.

[0004] However, when the gate plate of the existing soft-sealed gate valve is damaged and needs to be replaced, the user needs to twist a large number of bolts and nuts for disassembly, which is extremely troublesome and wastes labor and time, thus making it inconvenient for disassembly and replacement. Therefore, in view of the above problems, a soft-sealed gate valve that is convenient for replacing the gate valve is proposed. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background technique, the utility model proposes a soft-sealed gate valve that is convenient for replacing the gate valve.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A soft-sealed gate valve facilitating the replacement of a gate valve according to the present utility model includes a soft-sealed gate valve body; a valve cap is provided at the top of the soft-sealed gate valve body; a first lead screw is threadedly connected inside the valve cap; a rotating disc is fixedly connected to the top of the first lead screw; a gate core plate is rotatably connected to the bottom of the first lead screw; a connecting plate is fixedly connected to the surface of the soft-sealed gate valve body; a motor is fixedly connected to the bottom of the connecting plate; a second lead screw is fixedly connected to the output end of the motor; a moving block is threadedly connected to the surface of the second lead screw; connecting rods are fixedly connected to both sides of the moving block; a connecting pressure rod is fixedly connected to the top of the connecting rod; the connecting pressure rod is used in cooperation with the valve cap; a positioning assembly is provided on the surfaces of the valve cap and the soft-sealed gate valve body; the positioning assembly is used in cooperation with the connecting pressure rod.

[0007] Preferably, the positioning assembly includes a first connecting block and a second connecting block; one side of the first connecting block is fixedly connected to the surface of the valve cap; one side of the second connecting block is fixedly connected to the surface of the soft-sealed gate valve body; a positioning block is fixedly connected to the bottom of the first connecting block; a positioning slot cooperating with the positioning block is provided at the top of the second connecting block.

[0008] Preferably, a fixing block is fixedly connected to one side of the connecting plate; a limiting slider is fixedly connected to one side of the moving block; a limiting slide bar is slidably connected inside the limiting slider; both ends of the limiting slide bar penetrate through the limiting slider and are fixedly connected to the fixing plate.

[0009] Preferably, a cleaning brush is provided between the connecting pressure rods; one side of the cleaning brush is in contact with the surface of the second lead screw.

[0010] Preferably, a fixing column is threadedly connected to one side of the connecting pressure rod; the surface of the fixing column is threadedly connected to the cleaning brush.

[0011] Preferably, a limiting bearing is sleeved and connected to the top of the second lead screw; the top of the limiting bearing is fixedly connected to the connecting plate.

[0012] Preferably, the number of the connecting pressure rods is four; the connecting pressure rods are evenly distributed on the surface of the soft-sealed gate valve body.

[0013] The beneficial effects of the present utility model:

[0014] 1. The utility model provides a soft-sealing gate valve which is convenient for replacing the gate core plate. When it is necessary to disassemble the gate core plate of the soft-sealing gate valve, the motor is started; the motor drives the second lead screw to rotate, the second lead screw drives the moving block to move, the moving block drives the connecting rod to move, and the connecting rod drives the connecting pressure rod to move, so that the connecting pressure rod is disengaged from the valve cap; then the user rotates the rotating disc on the first lead screw to move the first lead screw upward, the first lead screw drives the gate core plate to move upward, and then the user removes the valve cap, so that the gate core plate is taken out from the soft-sealing gate valve body, and thus the gate core plate in the soft-sealing gate valve is disassembled, which is convenient for the user to disassemble and replace, saves time and effort, reduces labor, and improves work efficiency.

[0015] 2. The utility model provides a soft-sealing gate valve which is convenient for replacing the gate valve. By making the positioning block on the first connecting block snap into the positioning slot on the second connecting block, the valve cap and the soft-sealing gate valve body are preliminarily fixed, which is convenient for the user to disassemble and install the soft-sealing gate valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the utility model, and constitute a part of this application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model. In the drawings:

[0017] Figure 1 is a three-dimensional view of the utility model;

[0018] Figure 2 is a left-side sectional three-dimensional view of the soft-sealing gate valve in the utility model;

[0019] Figure 3 is a front-view sectional three-dimensional view of the soft-sealing gate valve in the utility model;

[0020] Figure 4 is a bottom-view sectional three-dimensional view of the soft-sealing gate valve in the utility model;

[0021] Figure 5 is in the utility model Figure 1 is an enlarged three-dimensional view of part A in

[0022] LEGEND DESCRIPTION:

[0023] 1. Soft-sealing gate valve body; 101. Valve cap; 102. First lead screw; 103. Rotating disc; 104. Gate core plate; 105. Connecting plate; 106. Motor; 107. Second lead screw; 108. Moving block; 109. Connecting rod; 110. Connecting pressure rod; 2. First connecting block; 201. Second connecting block; 202. Positioning block; 3. Fixed block; 301. Limit slider; 302. Limit slide bar; 4. Cleaning brush; 5. Fixed column; 6. Limit bearing. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0025] The following gives specific embodiments.

[0026] Please refer to Figure 1 - Figure 5 The present utility model provides a soft-sealed gate valve that is convenient for replacing the gate valve core, including a soft-sealed gate valve body 1; a valve cap 101 is arranged at the top of the soft-sealed gate valve body 1; a first lead screw 102 is threadedly connected inside the valve cap 101; a rotating disk 103 is fixedly connected to the top of the first lead screw 102; the bottom of the first lead screw 102 is rotatably connected to a gate valve core plate 104; a connecting plate 105 is fixedly connected to the surface of the soft-sealed gate valve body 1; a motor 106 is fixedly connected to the bottom of the connecting plate 105; an output end of the motor 106 is fixedly connected to a second lead screw 107; a moving block 108 is threadedly connected to the surface of the second lead screw 107; connecting rods 109 are fixedly connected to both sides of the moving block 108; a connecting pressure rod 110 is fixedly connected to the top of the connecting rod 109; the connecting pressure rod 110 is used in cooperation with the valve cap 101; a positioning component is arranged on the surfaces of the valve cap 101 and the soft-sealed gate valve body 1; the positioning component is used in cooperation with the connecting pressure rod 110; the number of the connecting pressure rods 110 is four; the connecting pressure rods 110 are evenly distributed on the surface of the soft-sealed gate valve body 1; during work, when it is necessary to disassemble the gate valve core plate 104 of the soft-sealed gate valve, the motor 106 is started; the motor 106 drives the second lead screw 107 to rotate, the second lead screw 107 drives the moving block 108 to move, the moving block 108 drives the connecting rod 109 to move, and the connecting rod 109 drives the connecting pressure rod 110 to move, so that the connecting pressure rod 110 disengages from the valve cap 101; then the user rotates the rotating disk 103 on the first lead screw 102 to move the first lead screw 102 upward, the first lead screw 102 drives the gate valve core plate 104 to move upward, and then the user removes the valve cap 101, so that the gate valve core plate 104 is taken out from the soft-sealed gate valve body 1, thus disassembling the gate valve core plate 104 in the soft-sealed gate valve, which is convenient for the user to disassemble and replace, saving time and effort, reducing labor, and improving work efficiency.

[0027] Further, as Figure 1 and Figure 3As shown in the figure, the positioning component includes a first connecting block 2 and a second connecting block 201; one side of the first connecting block 2 is fixedly connected to the surface of the valve cap 101; one side of the second connecting block 201 is fixedly connected to the surface of the soft-sealing gate valve body 1; the bottom of the first connecting block 2 is fixedly connected with a positioning block 202; a positioning slot for cooperating with the positioning block 202 is provided at the top of the second connecting block 201; during operation, by engaging the positioning block 202 on the first connecting block 2 into the positioning slot on the second connecting block 201, the valve cap 101 and the soft-sealing gate valve body 1 are preliminarily fixed, facilitating the user to disassemble and install the soft-sealing gate valve body 1.

[0028] Further, as Figure 5 shown in the figure, one side of the connecting plate 105 is fixedly connected with a fixed block 3; one side of the moving block 108 is fixedly connected with a limiting slider 301; a limiting slide bar 302 is slidably connected inside the limiting slider 301; both ends of the limiting slide bar 302 penetrate through the limiting slider 301 and are fixedly connected with the fixed plate; during operation, the moving block 108 drives the limiting slider 301 to slide on the limiting slide bar 302, and the limiting slide bar 302 horizontally limits the limiting slider 301, thereby horizontally limiting the moving block 108, making it easier for the moving block 108 to move as the second lead screw 107 rotates, reducing the wear of the moving block 108, and extending the service life of the moving block 108.

[0029] Further, as Figure 5 shown in the figure, a cleaning brush 4 is arranged between the connecting pressure rods 110; one side of the cleaning brush 4 is in contact with the surface of the second lead screw 107; during operation, the movement of the connecting pressure rods 110 drives the cleaning brush 4 to move, so that the cleaning brush 4 cleans the surface of the second lead screw 107, reducing the residue on the surface of the second lead screw 107 and the impact on the operation of the second lead screw 107.

[0030] Further, as Figure 5 shown in the figure, one side of the connecting pressure rod 110 is threadedly connected with a fixing column 5; the surface of the fixing column 5 is threadedly connected with the cleaning brush 4; during operation, the user rotates the fixing column 5, and the fixing column 5 disengages from the connecting pressure rod 110 and the cleaning brush 4, enabling the cleaning brush 4 to be disassembled and replaced.

[0031] Further, as Figure 4 shown in the figure, a limiting bearing 6 is sleeved and connected to the top of the second lead screw 107; the top of the limiting bearing 6 is fixedly connected with the connecting plate 105; during operation, the second lead screw 107 rotates on the connecting plate 105 through the limiting bearing 6, horizontally limiting the second lead screw 107, reducing the wear of the second lead screw 107, and extending the service life of the second lead screw 107.

[0032] Working principle: When it is necessary to disassemble the gate core plate 104 of the soft-sealed gate valve, start the motor 106; the motor 106 drives the second lead screw 107 to rotate, the second lead screw 107 drives the moving block 108 to move, the moving block 108 drives the connecting rod 109 to move, and the connecting rod 109 drives the connecting pressure rod 110 to move, so that the connecting pressure rod 110 is disengaged from the valve cap 101; then the user rotates the rotating disk 103 on the first lead screw 102 to move the first lead screw 102 upward, and the first lead screw 102 drives the gate core plate 104 to move upward. Then the user removes the valve cap 101, so that the gate core plate 104 is taken out from the soft-sealed gate valve body 1, and thus the gate core plate 104 in the soft-sealed gate valve is disassembled, which is convenient for the user to disassemble and replace, saving time and effort, reducing labor, and improving work efficiency. By making the positioning block 202 on the first connecting block 2 snap into the positioning slot on the second connecting block 201, the valve cap 101 and the soft-sealed gate valve body 1 are initially fixed, which is convenient for the user to disassemble and install the soft-sealed gate valve body 1. The moving block 108 drives the limit slider 301 to slide on the limit slide bar 302, and the limit slide bar 302 horizontally limits the limit slider 301, thereby horizontally limiting the moving block 108, making it easier for the moving block 108 to move as the second lead screw 107 rotates, reducing the wear of the moving block 108, and extending the service life of the moving block 108. The movement of the connecting pressure rod 110 drives the cleaning brush 4 to move, so that the cleaning brush 4 cleans the surface of the second lead screw 107, reducing the residue on the surface of the second lead screw 107 and the influence on the operation of the second lead screw 107. The user rotates the fixing column 5, and the fixing column 5 is disengaged from the connecting pressure rod 110 and the cleaning brush 4, so that the cleaning brush 4 can be disassembled and the cleaning brush 4 can be replaced. The second lead screw 107 rotates on the connecting plate 105 through the limit bearing 6, horizontally limiting the second lead screw 107, reducing the wear of the second lead screw 107, and extending the service life of the second lead screw 107.

[0033] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A soft-sealing gate valve facilitating the replacement of the gate valve, comprising a soft-sealing gate valve body (1); characterized in that: A valve cap (101) is provided at the top of the soft-sealed gate valve body (1); a first lead screw (102) is threadedly connected inside the valve cap (101); a rotating disk (103) is fixedly connected to the top of the first lead screw (102); the bottom of the first lead screw (102) is rotatably connected to a gate core plate (104); a connecting plate (105) is fixedly connected to the surface of the soft-sealed gate valve body (1); a motor (106) is fixedly connected to the bottom of the connecting plate (105); a second lead screw (107) is fixedly connected to the output end of the motor (106); a moving block (108) is threadedly connected to the surface of the second lead screw (107); connecting rods (109) are fixedly connected to both sides of the moving block (108); a connecting pressure rod (110) is fixedly connected to the top of the connecting rod (109); the connecting pressure rod (110) is used in cooperation with the valve cap (101); a positioning component is provided on the surfaces of the valve cap (101) and the soft-sealed gate valve body (1); the positioning component is used in cooperation with the connecting pressure rod (110).

2. The soft-sealed gate valve according to claim 1, which is convenient for replacing the gate valve, is characterized in that: The positioning component includes a first connecting block (2) and a second connecting block (201); one side of the first connecting block (2) is fixedly connected to the surface of the valve cap (101); one side of the second connecting block (201) is fixedly connected to the surface of the soft-sealed gate valve body (1); a positioning block (202) is fixedly connected to the bottom of the first connecting block (2); a positioning slot for cooperating with the positioning block (202) is provided at the top of the second connecting block (201).

3. The soft-sealing gate valve according to claim 1, which is convenient for replacing the gate valve, is characterized in that: A fixing block (3) is fixedly connected to one side of the connecting plate (105); a limiting slider (301) is fixedly connected to one side of the moving block (108); a limiting slide bar (302) is slidably connected inside the limiting slider (301); both ends of the limiting slide bar (302) penetrate through the limiting slider (301) and are fixedly connected to a fixing plate.

4. The soft-sealed gate valve according to claim 1, which is convenient for replacing the gate valve, is characterized in that: A cleaning brush (4) is provided between the connecting pressure rods (110); one side of the cleaning brush (4) is in contact with the surface of the second lead screw (107).

5. The soft-sealing gate valve according to claim 4, which is convenient for replacing the gate valve, is characterized in that: A fixing column (5) is threadedly connected to one side of the connecting pressure rod (110); the surface of the fixing column (5) is threadedly connected to the cleaning brush (4).

6. The soft-sealing gate valve according to claim 1, which is convenient for replacing the gate valve, is characterized in that: A limiting bearing (6) is sleeved and connected to the top of the second lead screw (107); the top of the limiting bearing (6) is fixedly connected to the connecting plate (105).

7. A soft-sealing gate valve facilitating the replacement of a gate valve according to claim 1, characterized in that: The number of the connecting pressure rods (110) is four; the connecting pressure rods (110) are evenly distributed on the surface of the soft-sealed gate valve body (1).

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