CN209875982U - Stop valve with excellent shock resistance - Google Patents
Stop valve with excellent shock resistance Download PDFInfo
- Publication number
- CN209875982U CN209875982U CN201920722493.8U CN201920722493U CN209875982U CN 209875982 U CN209875982 U CN 209875982U CN 201920722493 U CN201920722493 U CN 201920722493U CN 209875982 U CN209875982 U CN 209875982U
- Authority
- CN
- China
- Prior art keywords
- stop valve
- fixedly connected
- shock resistance
- block
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a stop valve that shock resistance is excellent, including stop valve body and liquid outlet, the inlet has been seted up in the left side of stop valve body, and the right side of stop valve body has seted up the liquid outlet, the upper surface set screw hole of stop valve body, inlet and liquid outlet pass through the delivery port through connection, the inside cover of delivery port has sealed piece, the inside rotation of screw hole is connected with the screw rod, the upper end fixedly connected with handle of screw rod, and the sealed piece of screw rod bottom fixedly connected with, sealed piece inner chamber has all been seted up to the both sides wall of sealed piece, the inside wall fixedly connected with second spring of sealed piece inner chamber. The utility model discloses in when liquid from the inlet when entering make the pressure block atress remove to the round hole under the effect of liquid pressure, make the buffer block atress, drive the transfer line and remove right, the transfer line drives the slider and removes right, makes slider compression second spring, has improved the shock resistance of stop valve.
Description
Technical Field
The utility model relates to a stop valve technical field especially relates to a stop valve that shock resistance is excellent.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed to enter the valve cavity from the upper part of the valve clack, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, this type of valve is also relatively tight under the action of the medium. The valve of China has been specified in the 'three-transformation and three-transformation' way, and the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25% -30% of the nominal diameter, the flow reaches the maximum, and the valve reaches the full-open position. Therefore, the fully open position of the shut-off valve is determined by the stroke of the valve clack.
The service life of a sealing block of the existing stop valve is easily shortened under the action of water pressure, so that the shock resistance of the stop valve is weaker.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a stop valve with excellent shock resistance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a stop valve with excellent shock resistance comprises a stop valve body and a liquid outlet, wherein a liquid inlet is formed in the left side of the stop valve body, a liquid outlet is formed in the right side of the stop valve body, a threaded hole is formed in the upper surface of the stop valve body, the liquid inlet and the liquid outlet are connected through a conveying port, a sealing block is sleeved inside the conveying port, a screw rod is rotatably connected inside the threaded hole, a handle is fixedly connected to the upper end of the screw rod, the bottom end of the screw rod is fixedly connected with the sealing block, sealing block inner cavities are formed in two side walls of the sealing block, a second spring is fixedly connected to the inner side wall of each sealing block inner cavity, limiting blocks are fixedly connected to the inner walls of the upper side wall and the lower side wall of each sealing block inner cavity, a sliding block is fixedly connected to one end of, the lateral wall of buffer block is linear equidistance and has seted up the round hole, the inside wall fixed mounting of round hole has first spring, the one end pressure piece of first spring.
Preferably, the inner diameter of the threaded hole is equal to the outer diameter of the screw rod, and the threaded hole is rotatably connected with the screw rod through threads.
Preferably, the outer diameter of the sliding block is equal to the inner diameter of the inner cavity of the sealing block, and the inner wall of the inner cavity of the side wall sealing block of the sliding block is in sliding connection.
Preferably, the inner diameter of the round hole is equal to the outer diameter of the pressure block. The pressure block is a component made of butadiene-acrylonitrile rubber.
Preferably, the outer side wall of the handle is provided with anti-skid patterns.
Preferably, the conveying opening and the sealing block are in interference fit.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses in when liquid from the inlet when entering make the pressure piece atress remove to the round hole under the effect of liquid pressure, make first spring atress compression to make the buffer block atress, drive the transfer line and remove right, the transfer line drives the slider and removes right, makes slider compression second spring, thereby reduces water pressure to the pressure of sealed piece, has prolonged the life of sealed piece, has improved the shock resistance of stop valve.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view of a part of the structure of the present invention.
In the figure: 1. a stop valve body; 2. a liquid outlet; 3. a delivery port; 4. a liquid inlet; 5. a sealing block; 6. a threaded hole; 7. a screw; 8. a handle; 9. a limiting block; 10. a transmission rod; 11. a circular hole; 12. a first spring; 13. a pressure block; 14. a buffer block; 15. a slider; 16. sealing the inner cavity of the block; 17. a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a stop valve with excellent shock resistance comprises a stop valve body 1 and a liquid outlet 2, wherein a liquid inlet 4 is arranged on the left side of the stop valve body 1, the liquid outlet 2 is arranged on the right side of the stop valve body 1, a threaded hole 6 is arranged on the upper surface of the stop valve body 1, the liquid inlet 4 and the liquid outlet 2 are communicated and connected through a conveying port 3, a sealing block 5 is sleeved inside the conveying port 3, a screw 7 is rotatably connected inside the threaded hole 6, a handle 8 is fixedly connected to the upper end of the screw 7, the bottom end of the screw 7 is fixedly connected with the sealing block 5, sealing block inner cavities 16 are arranged on two side walls of the sealing block 5, a second spring 17 is fixedly connected to the inner side wall of each sealing block inner cavity 16, limiting blocks 9 are fixedly connected to the inner walls of the upper side and the lower side of each sealing, one end fixedly connected with buffer block 14 of transfer line 10, the lateral wall of buffer block 14 is linear equidistance has seted up round hole 11, and the inside wall fixed mounting of round hole 11 has first spring 12, the one end pressure block 13 of first spring 12.
In order to enable the screw 7 to rotate, the inner diameter of the threaded hole 6 is equal to the outer diameter of the screw 7, and the threaded hole 6 is in threaded rotation connection with the screw 7; in order to enable the sliding block 15 to move normally, the outer diameter of the sliding block 15 is equal to the inner diameter of the sealing block inner cavity 16, and the side wall of the sliding block 15 is in sliding connection with the inner wall of the sealing block inner cavity 16; in order to allow the pressure block 13 to enter the circular hole 11, the inner diameter of the circular hole 11 is equal to the outer diameter of the pressure block 13. The pressure block 13 is a member made of nitrile rubber; in order to increase the friction force of the handle 8, the outer side wall of the handle 8 is provided with anti-skid patterns; in order to avoid liquid overflow, the conveying opening 3 and the sealing block 5 are in interference fit.
The working principle is as follows: when liquid enters from the liquid inlet 4, the pressure block 13 is stressed to move towards the circular hole 11 under the action of the liquid pressure, the first spring 12 is stressed and compressed, the buffer block 14 is stressed to drive the transmission rod 10 to move rightwards, the transmission rod 10 drives the sliding block 15 to move rightwards, and the sliding block 15 compresses the second spring 17, so that the pressure of the water pressure on the sealing block 5 is reduced, the service life of the sealing block 5 is prolonged, and the shock resistance of the stop valve is improved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The stop valve with excellent shock resistance comprises a stop valve body (1) and a liquid outlet (2), and is characterized in that a liquid inlet (4) is formed in the left side of the stop valve body (1), the liquid outlet (2) is formed in the right side of the stop valve body (1), a threaded hole (6) is formed in the upper surface of the stop valve body (1), the liquid inlet (4) and the liquid outlet (2) are in through connection through a conveying port (3), a sealing block (5) is sleeved inside the conveying port (3), a screw rod (7) is rotatably connected inside the threaded hole (6), a handle (8) is fixedly connected to the upper end of the screw rod (7), the sealing block (5) is fixedly connected to the bottom end of the screw rod (7), sealing block inner cavities (16) are formed in two side walls of the sealing block (5), and a second spring (17) is fixedly connected to the inner side wall of the sealing, and the equal fixedly connected with stopper (9) of the upper and lower both sides inner wall of sealed piece inner chamber (16), the one end fixedly connected with slider (15) of second spring (17), the one end fixedly connected with transfer line (10) of slider (15), the one end fixedly connected with buffer block (14) of transfer line (10), round hole (11) have been seted up that the lateral wall of buffer block (14) is linear equidistance, the inside wall fixed mounting of round hole (11) has first spring (12), the one end pressure piece (13) of first spring (12).
2. The stop valve with excellent shock resistance of the claim 1, characterized in that the inner diameter of the threaded hole (6) and the outer diameter of the screw (7) are equal, and the threaded hole (6) and the screw (7) are connected by screw thread rotation.
3. The stop valve with excellent shock resistance of claim 1, wherein the outer diameter of the sliding block (15) is equal to the inner diameter of the sealing block inner cavity (16), and the side wall of the sliding block (15) is connected with the inner wall of the sealing block inner cavity (16) in a sliding mode.
4. The stop valve with excellent shock resistance according to claim 1, wherein the inner diameter of the circular hole (11) is equal to the outer diameter of the pressure block (13), and the pressure block (13) is a member made of butadiene-acrylonitrile rubber.
5. The stop valve with excellent shock resistance as claimed in claim 1, wherein the outer side wall of the handle (8) is provided with an anti-slip pattern.
6. A stop valve with excellent shock resistance according to claim 1, characterized in that the delivery port (3) and the sealing block (5) are in interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920722493.8U CN209875982U (en) | 2019-05-20 | 2019-05-20 | Stop valve with excellent shock resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920722493.8U CN209875982U (en) | 2019-05-20 | 2019-05-20 | Stop valve with excellent shock resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875982U true CN209875982U (en) | 2019-12-31 |
Family
ID=68947105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920722493.8U Expired - Fee Related CN209875982U (en) | 2019-05-20 | 2019-05-20 | Stop valve with excellent shock resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875982U (en) |
-
2019
- 2019-05-20 CN CN201920722493.8U patent/CN209875982U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20210520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |