CN223019564U - Electric direct-drive balanced stop valve - Google Patents
Electric direct-drive balanced stop valve Download PDFInfo
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- CN223019564U CN223019564U CN202421880503.8U CN202421880503U CN223019564U CN 223019564 U CN223019564 U CN 223019564U CN 202421880503 U CN202421880503 U CN 202421880503U CN 223019564 U CN223019564 U CN 223019564U
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Abstract
本实用新型涉及截止阀技术领域，尤其是电动直驱平衡式截止阀，包括第一阀体，所述连接杆一端贯穿条形孔并设有端口启闭装置，所述阀瓣机构下表面设有第一密封块，所述第一密封块表面滑动连接设有第二密封块，所述第一阀体下内壁设有凹槽，所述第二密封块下表面与凹槽下内壁表面接触，所述第二密封块与阀瓣机构之间设有多个弹性连接装置。本实用新型设置的弹性连接装置，当第二密封块顶紧凹槽下内壁时，弹簧处于压缩状态，此时连接杆按压住下方的限位开关，电动直驱机构停止启动，当的限位开关位置发生移动或者第二密封块出现磨损时，弹簧会通过压缩作用补偿损耗量，确保该平衡式截止阀密封性良好。
The utility model relates to the technical field of stop valves, especially an electric direct-driven balanced stop valve, comprising a first valve body, one end of the connecting rod passing through a strip hole and provided with a port opening and closing device, a first sealing block provided on the lower surface of the valve flap mechanism, a second sealing block provided on the surface of the first sealing block in sliding connection, a groove provided on the lower inner wall of the first valve body, the lower surface of the second sealing block in contact with the lower inner wall surface of the groove, and a plurality of elastic connection devices provided between the second sealing block and the valve flap mechanism. The elastic connection device provided in the utility model is such that when the second sealing block presses against the lower inner wall of the groove, the spring is in a compressed state, at which time the connecting rod presses the limit switch below, and the electric direct-driven mechanism stops starting. When the limit switch position moves or the second sealing block wears, the spring will compensate for the loss through compression to ensure that the balanced stop valve has good sealing performance.
Description
Technical Field
The utility model relates to the technical field of stop valves, in particular to an electric direct-drive balanced stop valve.
Background
A shut-off valve, also called a shutter, is one of the most widely used valves. The stop valve is a core component in a hydraulic/pneumatic system and plays a role in controlling the on-off of a pipeline, so that the requirement on the stop valve is required to be correspondingly rapid, easy to control and reliable in sealing. Among them, the sealing performance of the shut-off valve is particularly important.
For example, the authority publication number CN113700921B is named as an electric direct-drive balanced stop valve, although the pressure fluid at the inlet of the stop valve is introduced into the sealed containing cavity by designing the balanced valve clack mechanism, the pressure acting area above the balanced valve clack mechanism is larger than the pressure acting area below the balanced valve clack mechanism when the stop valve is in a closed state, so that the sealing block is tightly pressed at the inlet of the stop valve, and the reliable sealing of the inlet of the stop valve is ensured. The up-down movement limit position of the valve rod is provided with two travel switches, when the valve rod moves to trigger the travel switches, the stop valve is indicated to be at the maximum opening or completely closed, and an electric signal is output to return to the upper computer so as to judge the opening and closing of the valve and further control the valve. However, in the above-mentioned process, when the position of the travel switch is moved or the sealing block is worn, the balanced valve clack mechanism is not tightly closed, so that the balanced stop valve is not sealed well.
Disclosure of utility model
The utility model aims to solve the defects in the prior art and provides an electric direct-drive balanced stop valve.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The design is electronic directly drives balanced stop valve, including first valve body, first valve body upper end is equipped with the valve gap, first valve body and valve gap pass through bolt threaded connection, first valve body lower extreme is equipped with the entrance point, first valve body one side surface is equipped with the exit end, the valve gap upper surface is equipped with a plurality of installation pieces, and is a plurality of the installation piece upper end is equipped with electronic direct drive mechanism, electronic direct drive mechanism lower surface is equipped with first actuating lever, and is a plurality of one of them surface of installation piece is equipped with the bar hole, first actuating lever middle part is equipped with the connecting rod, connecting rod one end runs through the bar hole and is equipped with the port headstock gear, port headstock gear one side surface intercommunication is equipped with the output pipeline, port headstock gear opposite side surface intercommunication exit end, bar hole top and below all are equipped with limit switch, two limit switch sets up on the installation piece, first actuating lever lower extreme runs through the valve gap and is equipped with the mechanism, first valve body inner wall is equipped with the valve pocket, valve pocket and valve clack mechanism sliding connection, mechanism and valve clack mechanism form the cavity with valve gap between valve clack mechanism and the valve gap between valve gap and the valve gap, first actuating lever and valve gap surface are equipped with the first sealing surface and the valve clack, sealing surface is equipped with the gap between the sealing device, sealing surface is equipped with the sealing device.
Preferably, the elastic connecting device comprises a sliding rod, the upper end of the sliding rod is connected with the lower surface of the valve clack mechanism, a first limiting cavity is formed in the upper portion of the second sealing block, the lower end of the sliding rod 20 stretches into the first limiting cavity 21 and is provided with a first limiting end block 22, a spring is sleeved outside the sliding rod, the upper end of the spring is connected with the lower surface of the valve clack mechanism, and the lower end of the spring is connected with the upper surface of the second sealing block.
Preferably, the inside second spacing chamber that is equipped with of second sealed piece, the inside second spacing end piece that is equipped with of second spacing chamber, second spacing end piece upper surface is connected with first sealed piece lower extreme, second spacing end piece surface is equipped with the through-hole, through-hole and logical liquid hole intercommunication.
Preferably, the lower end of the valve clack mechanism is annularly provided with a covering block, and the inner wall of the covering block is in sliding connection with the surface of the second sealing block.
Preferably, the second sealing block is provided with a sealing edge near the top end in an annular mode, and a sealing rubber pad is arranged on the lower surface of the sealing edge.
Preferably, the port opening and closing device comprises a second driving rod and a second valve body, the upper end of the second driving rod is connected with one end of the connecting rod, the surfaces of two sides of the second valve body are in one-to-one correspondence and are communicated with the outlet ends and the output pipelines, and the lower end of the second driving rod penetrates through the second valve body and is provided with a valve plate.
The electric direct-drive balanced stop valve has the beneficial effects that the elastic connecting device is arranged, the electric direct-drive mechanism is started at first to enable the first driving rod to move downwards, when the second sealing block abuts against the lower inner wall of the groove, the spring is in a compressed state, the connecting rod presses the limit switch below the connecting rod, the electric direct-drive mechanism stops starting, and when the position of the limit switch moves or the second sealing block is worn, the spring compensates the loss through the compression effect, the second sealing block is not closed tightly, and the balanced stop valve is ensured to be good in tightness. The port opening and closing device drives the second driving rod to move downwards when the first driving rod moves downwards, and then drives the valve plate to move downwards, so that the valve plate blocks the outlet end and the output pipeline, further sealing is achieved, and the condition that the pressure of the output pipeline is too high and backflow occurs is also prevented.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present utility model;
Fig. 2 is an enlarged view of the a position of the present utility model.
In the figure, a first valve body 1, a valve cover 2, a bolt 3, an inlet end 4, an outlet end 5, a mounting block 6, an electric direct drive mechanism 7, a first drive rod 8, a strip-shaped hole 9, a connecting rod 10, a limit switch 11, an output pipeline 12, a valve clack mechanism 13, a valve sleeve 14, a cavity 15, a hole gap 16, a first sealing block 17, a second sealing block 18, a liquid through hole 19, a slide bar 20, a first limiting cavity 21, a first limiting end block 22, a spring 23, a second limiting cavity 24, a second limiting end block 25, a covering block 26, a sealing edge 27, a sealing rubber pad 28, a second drive rod 29, a second valve body 30, a valve plate 31 and a groove 32.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-2, the electric direct-drive balanced stop valve comprises a first valve body 1, wherein a valve cover 2 is arranged at the upper end of the first valve body 1, the first valve body 1 and the valve cover 2 are in threaded connection through bolts 3, a sealing rubber pad is arranged between the first valve body 1 and the valve cover 2, and the first valve body 1 and the valve cover 2 are convenient to install and detach through threaded connection. The lower end of the first valve body 1 is provided with an inlet end 4 from which fluid enters. An outlet 5 is provided in one side surface of the first valve body 1, from which fluid flows out. The valve gap 2 upper surface is equipped with a plurality of installation pieces 6, and a plurality of installation pieces 6 upper ends are equipped with electronic direct drive mechanism 7, and electronic direct drive mechanism 7 lower surface is equipped with first actuating lever 8, and electronic direct drive mechanism 7 is prior art, can make first actuating lever 8 make rectilinear motion through the inside structure of electronic direct drive mechanism 7. One of the surfaces of the mounting blocks 6 is provided with a bar-shaped hole 9, the middle part of the first driving rod 8 is provided with a connecting rod 10, and the bar-shaped hole 9 can enable the connecting rod 10 to move up and down along the inside of the bar-shaped hole 9 to play a limiting role. One end of the connecting rod 10 penetrates through the strip-shaped hole 9 and is provided with a port opening and closing device, one side surface of the port opening and closing device is communicated with an output pipeline 12, the other side surface of the port opening and closing device is communicated with the outlet end 5, and the port opening and closing device plays a role in cutting off the output pipeline 12 and the outlet end 5. Limit switches 11 are arranged above and below the strip-shaped holes 9, the limit switches 11 play a role in transmitting signals for opening and closing the balance type stop valves, when the upper limit switch 11 is triggered, the balance type stop valves are fully opened, and when the lower limit switch 11 is triggered, the balance type stop valves are fully closed. Two limit switches 11 are provided on the mounting block 6.
The lower end of the first driving rod 8 penetrates through the valve cover 2 and is provided with a valve clack mechanism 13, the inner wall of the first valve body 1 is provided with a valve sleeve 14, the valve sleeve 14 is in sliding connection with the valve clack mechanism 13, a cavity 15 is formed between the valve clack mechanism 13 and the upper inner wall of the valve cover 2, a hole gap 16 is formed between the valve clack mechanism 13 and the first driving rod 8, the hole gap 16 is communicated with the cavity 15, the lower surface of the valve clack mechanism 13 is provided with a first sealing block 17, the first sealing block 17 is communicated with the hole gap 16, the surface of the first sealing block 17 is in sliding connection with a second sealing block 18, the lower inner wall of the first valve body 1 is provided with a groove 32, the lower surface of the second sealing block 18 is in contact with the lower inner wall surface of the groove 32, a plurality of elastic connection devices are arranged between the second sealing block 18 and the valve clack mechanism 13, the surface of the second sealing block 18 is provided with a liquid through hole 19, and the liquid through hole 19 is communicated with the hole gap 16. When the balanced stop valve is in a closed state, partial pressure fluid sequentially passes through the liquid through hole 19, the first sealing block 17 and the hole gap 16 to enter the closed cavity 15, and when the pressure fluid enters the closed cavity, the pressure fluid acts on the upper surface of the valve clack mechanism 13, and the acting area of the upper surface of the valve clack mechanism 13 is larger than the acting area of the pressure of the lower surface of the second sealing block 18, so that a downward acting force is formed to press the second sealing block 18 on the groove 32, sealing is facilitated, and the second sealing block 18 is tightly contacted with the lower inner wall of the groove 32 due to the action of the elastic connecting device.
In this example, the elastic connection device includes a slide bar 20, the upper end of the slide bar 20 is connected with the lower surface of the valve clack mechanism 13, a first limiting cavity 21 is arranged in the upper portion of the second sealing block 18, the lower end of the slide bar 20 extends into the first limiting cavity 21 and is provided with a first limiting end block 22, a spring 23 is sleeved outside the slide bar 20, the upper end of the spring 23 is connected with the lower surface of the valve clack mechanism 13, and the lower end of the spring 23 is connected with the upper surface of the second sealing block 18.
In this example, the second seal block 18 is internally provided with a second limiting cavity 24, the second limiting cavity 24 is internally provided with a second limiting end block 25, the upper surface of the second limiting end block 25 is connected with the lower end of the first seal block 17, and the limiting effect on the first seal block 17 is achieved by arranging the second limiting end block 25. The surface of the second limiting end block 25 is provided with a through hole which is communicated with the liquid through hole 19.
In this example, the lower end of the valve clack mechanism 13 is annularly provided with a covering block 26, and the inner wall of the covering block 26 is slidably connected with the surface of the second sealing block 18. The covering block 26 serves to shield and protect the elastic connection means.
In this example, the second sealing block 18 is provided with a sealing edge 27 in a ring shape near the top end, and a sealing rubber pad 28 is provided on the lower surface of the sealing edge 27. The sealing rubber cushion 28 has elasticity, and the sealing rubber cushion 28 is pressed down by the sealing edge 27, so that the sealing rubber cushion 28 compacts the lower inner wall of the first valve body 1, and further sealing effect is achieved.
In this example, the port opening and closing device comprises a second driving rod 29 and a second valve body 30, wherein the upper end of the second driving rod 29 is connected with one end of the connecting rod 10, the two side surfaces of the second valve body 30 are in one-to-one correspondence and are communicated with the outlet end 5 and the output pipeline 12, and the lower end of the second driving rod 29 penetrates through the second valve body 30 and is provided with a valve plate 31. The port opening and closing device drives the second driving rod 29 to move downwards when the first driving rod 8 moves downwards, and then drives the valve plate 31 to move downwards, so that the valve plate 31 blocks the outlet end 5 and the output pipeline 12, further sealing is achieved, and the condition that the pressure of the output pipeline 12 is too high and backflow occurs is also prevented.
The elastic connecting device is arranged, the electric direct-drive mechanism 7 is started firstly, the first driving rod 8 moves downwards, when the second sealing block 18 abuts against the lower inner wall of the groove 32, the spring 23 is in a compressed state, the connecting rod 10 presses the limit switch 11 below, the electric direct-drive mechanism 7 stops starting, when the position of the limit switch 11 moves or the second sealing block 18 is worn, the spring 23 compensates the loss through compression, the second sealing block 18 is not closed tightly, and good sealing performance of the balanced stop valve is ensured.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The electric direct-drive balanced stop valve comprises a first valve body (1), and is characterized in that the upper end of the first valve body (1) is provided with a valve cover (2), the first valve body (1) and the valve cover (2) are in threaded connection through bolts (3), the lower end of the first valve body (1) is provided with an inlet end (4), one side surface of the first valve body (1) is provided with an outlet end (5), the upper surface of the valve cover (2) is provided with a plurality of mounting blocks (6), the upper end of the mounting blocks (6) is provided with an electric direct-drive mechanism (7), the lower surface of the electric direct-drive mechanism (7) is provided with a first driving rod (8), one surface of the mounting blocks (6) is provided with a strip-shaped hole (9), the middle part of the first driving rod (8) is provided with a connecting rod (10), one end of the connecting rod (10) penetrates through the hole (9) and is provided with a port opening and closing device, one side surface of the port opening and closing device is communicated with an output pipeline (12), the other side surface of the port opening and closing device is communicated with the outlet end (5), the upper side surface of the valve cover (9) and the lower side of the port opening and the port opening device are provided with the output end (12) are provided with a plurality of the two limiting switches (11) and are provided with two limiting blocks (11) respectively, the valve is characterized in that a valve sleeve (14) is arranged on the inner wall of the first valve body (1), the valve sleeve (14) is slidably connected with a valve clack mechanism (13), a cavity (15) is formed in the inner wall of the valve clack mechanism (13) and the upper inner wall of the valve cover (2), a hole gap (16) is formed between the valve clack mechanism (13) and the first driving rod (8), the hole gap (16) is communicated with the cavity (15), a first sealing block (17) is arranged on the lower surface of the valve clack mechanism (13), the first sealing block (17) is communicated with the hole gap (16), a second sealing block (18) is slidably connected with the surface of the first sealing block (17), a groove (32) is formed in the lower inner wall of the first valve body (1), a plurality of elastic connecting devices are arranged between the lower surface of the second sealing block (18) and the valve clack mechanism (13), and a liquid through hole (19) is formed in the surface of the second sealing block (18), and the hole gap (16) is communicated with the liquid through hole (19).
2. The electric direct-drive balanced stop valve according to claim 1, wherein the elastic connection device comprises a slide bar (20), the upper end of the slide bar (20) is connected with the lower surface of the valve clack mechanism (13), a first limiting cavity (21) is arranged in the upper portion of the second sealing block (18), the lower end of the slide bar (20) stretches into the first limiting cavity (21) and is provided with a first limiting end block (22), a spring (23) is sleeved outside the slide bar (20), the upper end of the spring (23) is connected with the lower surface of the valve clack mechanism (13), and the lower end of the spring (23) is connected with the upper surface of the second sealing block (18).
3. The electric direct-drive balanced stop valve according to claim 1, wherein a second limiting cavity (24) is arranged in the second sealing block (18), a second limiting end block (25) is arranged in the second limiting cavity (24), the upper surface of the second limiting end block (25) is connected with the lower end of the first sealing block (17), and a through hole is formed in the surface of the second limiting end block (25), and is communicated with the liquid through hole (19).
4. The electric direct-drive balanced stop valve according to claim 1, wherein a cover block (26) is annularly arranged at the lower end of the valve clack mechanism (13), and the inner wall of the cover block (26) is slidably connected with the surface of the second sealing block (18).
5. The electric direct-drive balanced stop valve according to claim 1, wherein a sealing edge (27) is annularly arranged near the top end of the second sealing block (18), and a sealing rubber pad (28) is arranged on the lower surface of the sealing edge (27).
6. The electric direct-drive balanced stop valve according to claim 1, wherein the port opening and closing device comprises a second driving rod (29) and a second valve body (30), the upper end of the second driving rod (29) is connected with one end of the connecting rod (10), two side surfaces of the second valve body (30) are in one-to-one correspondence and are communicated with the outlet end (5) and the output pipeline (12), and the lower end of the second driving rod (29) penetrates through the second valve body (30) and is provided with a valve plate (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421880503.8U CN223019564U (en) | 2024-08-02 | 2024-08-02 | Electric direct-drive balanced stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421880503.8U CN223019564U (en) | 2024-08-02 | 2024-08-02 | Electric direct-drive balanced stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223019564U true CN223019564U (en) | 2025-06-24 |
Family
ID=96086472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421880503.8U Active CN223019564U (en) | 2024-08-02 | 2024-08-02 | Electric direct-drive balanced stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223019564U (en) |
-
2024
- 2024-08-02 CN CN202421880503.8U patent/CN223019564U/en active Active
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