CN218582297U - Locking gate valve with pressure relief function - Google Patents
Locking gate valve with pressure relief function Download PDFInfo
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- CN218582297U CN218582297U CN202222917238.3U CN202222917238U CN218582297U CN 218582297 U CN218582297 U CN 218582297U CN 202222917238 U CN202222917238 U CN 202222917238U CN 218582297 U CN218582297 U CN 218582297U
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- gate valve
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Abstract
The utility model relates to a locking gate valve with pressure relief function, which comprises a gate valve body, a water inlet channel and a water outlet channel which are arranged in the gate valve body, a control component which is arranged between the water inlet channel and the water outlet channel and is used for controlling the opening and closing of fluid, and a pressure relief device which is arranged on the gate valve body and is positioned at one end of the water inlet channel and/or one end of the water outlet channel and is used for reducing the pressure of the fluid in the gate valve body, the pressure release dress is including setting up the pressure release pipe that just is linked together with the gate valve body is inside on the gate valve body, set up in the pressure release mouth of pressure release pipe downside, can dismantle the pressure release cover that sets up on the pressure release pipe, set up the pressure release cavity in the pressure release cover, can slide and set up in the pressure release cavity in be used for with the airtight pressure release mouth of pressure release mouth cooperation, set up in the pressure release cavity in order to order about the closing plate keep with at least one elastic component of pressure release mouth complex, set up the controlling means who is used for controlling the elastic component compression degree on the pressure release cover, set up on the pressure release cover and supply the pressure release hole that the fluid flows out with pressure release cavity intercommunication.
Description
Technical Field
The utility model relates to a valve processing technology field, in particular to locking gate valve with pressure release function.
Background
The opening and closing piece of gate valve is the flashboard, the direction of motion of flashboard is mutually perpendicular with the fluid direction, the gate valve only can be done and fully opened and close totally, can not do regulation and throttle, the flashboard has two sealed faces, when the gate valve is closed, sealed face can only rely on medium pressure to seal, only rely on medium pressure to press the sealed face of flashboard to the disk seat of opposite side to guarantee sealed face sealed promptly, most gate valves adopt and force sealedly, when the valve is closed promptly, will rely on external force to press the flashboard to the disk seat by force, in order to guarantee the leakproofness of sealed face.
In the prior art, the gate valve is convenient to use, stable in connection and sealing structure and long in service life; but lead to the quick increase of gate valve body internal pressure when the emergency shutdown is carried out to prevention and control locking gate valve, perhaps meet the return water and lead to the increase of gate valve body internal pressure after the gate valve is closed in the in-service use process for the inside rivers of gate valve body strike flashboard and the seal structure of junction, cause the inside damage of gate valve body, the condition of leaking appears, can have the gate valve even when serious and the junction burst of the water pipe of being connected, cause serious potential safety hazard and economic loss.
SUMMERY OF THE UTILITY MODEL
Therefore, to the above problem, the utility model provides a locking gate valve with pressure release function.
In order to realize the technical problem, the solution adopted by the utility model is a locking gate valve with pressure relief function, which comprises a gate valve body, a water inlet channel and a water outlet channel which are arranged in the gate valve body, a control component which is arranged between the water inlet channel and the water outlet channel and is used for controlling the opening and closing of fluid, and a pressure relief device which is arranged on the gate valve body and is positioned at one end of the water inlet channel and/or one end of the water outlet channel and is used for reducing the fluid pressure in the gate valve body, pressure release including set up in on the gate valve body and with the inside pressure release pipe that is linked together of gate valve body, set up in pressure release pipe downside pressure release mouth, can dismantle set up in pressure release cover on the pressure release pipe, set up in pressure release cavity in the pressure release cover, can slide set up in the pressure release cavity be used for with the cooperation of pressure release mouth is airtight the closing plate of pressure release mouth, set up in be used for ordering about in the pressure release cavity the closing plate keep with at least one elastic component of pressure release mouth complex, set up in be used for control on the pressure release cover the controlling means of elastic component compression degree, the pressure release sheathe in set up with the pressure release hole that the fluid outflow was supplied to the pressure release cavity intercommunication.
The improved structure is characterized in that the control device is a sliding plate which can be arranged in the pressure relief cavity in a sliding mode, a rotating screw rod which is rotatably arranged on the pressure relief sleeve through threaded connection, and the upper end of the rotating screw rod penetrates into the pressure relief cavity and abuts against the sliding plate.
The further improvement is that the upper end of the rotating screw rod penetrates through the sliding plate, the rotating screw rod is provided with the upper end of the sliding plate and the lower end of the sliding plate, mounting grooves are formed in the lower end of the sliding plate, and clamp springs are detachably arranged on the mounting grooves.
The improved structure is characterized in that the elastic piece is a compression spring, the upper end of the compression spring abuts against the lower end face of the sealing plate, and the lower end of the compression spring abuts against the upper end face of the sliding plate.
The sealing plate and the sliding plate are provided with an anti-deviation device for limiting the deviation of the compression spring during compression.
It is a further improvement that the anti-migration apparatus comprises: be provided with first anti-migration cover on the closing plate, be provided with the second on the shifting board and prevent the skew cover, lie in on the shifting board be provided with in the second prevents the skew cover and prevent the skew post, the compression spring upper end set up in the first prevents the skew cover, the compression spring lower extreme set up in the second prevents the skew cover just the lower pot head is located prevent on the skew post, first prevent the skew cover lower extreme be in the closing plate with the shifting board slides each other and can penetrate when being close to in the second prevents the skew cover.
The further improvement is that the lower end of the rotating screw rod is provided with a hand wheel.
The improved structure is characterized in that the upper end of the sealing plate is provided with an elastic sealing gasket matched with the pressure relief opening, and the cross section of the elastic sealing gasket is an arc-shaped cross section.
The further improvement is that the gate valve body is provided with a mounting structure for mounting a pressure gauge at one end of the water inlet channel and/or at one end of the water outlet channel.
The gate valve is characterized in that the mounting structure comprises a pressure gauge mounting seat which is obliquely arranged on the gate valve body and is positioned at one end of the water inlet channel and/or one end of the water outlet channel, the pressure gauge mounting seat is provided with a communicating channel communicated with the inside of the gate valve body, and the pressure gauge mounting seat is detachably provided with a sealing cover through threads.
By adopting the technical scheme, the beneficial effects of the utility model are that: the pressure relief device can reduce the pressure of fluid in the water inlet channel or the water outlet channel, thereby reducing the impact of the fluid on the valve plate, preventing the valve plate from being damaged and leaking water, and prolonging the service life of the valve; and then prevent that the junction of gate valve and the water pipe of being connected from exploding, prevent to cause serious potential safety hazard and economic loss.
Drawings
FIG. 1 is a schematic structural view of a gate valve body according to an embodiment of the present invention;
FIG. 2 is a partially enlarged view corresponding to the point A in FIG. 1 in the embodiment of the present invention;
fig. 3 is a partial enlarged view corresponding to the position B in fig. 2 in the embodiment of the present invention.
The reference numbers in the figures: the gate valve comprises a gate valve body-1, a water inlet channel-2, a water outlet channel-3, a pressure relief pipe-4, a pressure relief sleeve-5, a pressure relief chamber-6, a sealing plate-7, a pressure relief hole-8, a sliding plate-9, a rotating screw-10, a clamp spring-11, a compression spring-12, a first anti-deviation sleeve-13, a second anti-deviation sleeve-14, an anti-deviation column-15, an elastic sealing gasket-16, a pressure gauge mounting seat-17, a communicating channel-18, a valve seat-19, a valve plate-20, a valve rod-21, a rotating hand wheel-22, a first sealing ring-23, a sealing gasket-24 and a sealing cover-25.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings and specific embodiments.
Example (c);
referring to fig. 1 to fig. 3, a locking gate valve with pressure release function, including gate valve body 1, set up in inhalant canal 2 and exhalant canal 3 in the gate valve body 1, set up in inhalant canal 2 with the same control fluid between exhalant canal 3 opens and close control assembly, set up in lie in on the gate valve body 12 one end of inhalant canal and/or (in this embodiment and) lie in 3 one end of exhalant canal is used for reducing the pressure relief device of the fluid pressure in the gate valve body 1, pressure relief including set up in on the gate valve body 1 and with the inside pressure relief pipe 4 that is linked together of gate valve body 1, set up in the pressure relief mouth of pressure relief pipe 4 downside, through threaded connection can dismantle set up in pressure relief cover 5 on the pressure relief pipe 4, set up in the pressure relief cover 5, can slide set up in the pressure relief cavity 6 be used for with the airtight sealing plate 7 of pressure relief mouth cooperation, set up in the pressure relief cavity 6 be used for ordering about sealing plate 7 keep with at least one elastic component of mouth cooperation, set up in the pressure relief cover 5 is used for controlling the compression degree of elastic component the pressure relief cover 5 and the pressure relief hole 5 is seted up with the pressure relief hole 8 that the pressure relief hole supplies fluid to communicate.
The control device is a sliding plate 9 arranged in the pressure relief cavity 6, a rotating screw rod 10 which is connected with the pressure relief cavity 6 through threads and can be rotatably arranged on the pressure relief sleeve 5, the upper end of the rotating screw rod 10 penetrates into the pressure relief cavity 6 and abuts against the sliding plate 9, and the rotating screw rod 10 can be controlled to penetrate out of the rotating screw rod 10 according to the length of the sliding plate 9 so as to control the sliding plate 9 to slide in the pressure relief cavity 6, so that the sliding plate 9 is controlled to compress the elastic part.
In this embodiment, rotate the screw rod 10 upper end and pass slide 9, rotate and lie in on the screw rod 10 slide 9 upper end and lie in the mounting groove has all been seted up to slide 9 lower extreme, can dismantle on the mounting groove and be provided with jump ring 11, at this moment, rotate the rotatable setting of screw rod 10 and be in on the slide 9, and rotate the screw rod 10 and lie in the jump ring 11 at slide 9 upper and lower both ends then is used for supporting slide 9 to drive slide 9 slides.
The elastic piece is a compression spring 12, the upper end of the compression spring 12 abuts against the lower end face of the sealing plate 7, and the lower end of the compression spring 12 abuts against the upper end face of the sliding plate 9.
The sealing plate 7 and the sliding plate 9 are provided with a deviation preventing device for limiting the deviation of the compression spring 12 during compression.
The deviation preventing device includes: be provided with the first cover 13 that prevents squinting on the closing plate 7, be provided with the second on the slide plate 9 and prevent squinting cover 14, lie in on the slide plate 9 be provided with in the second prevents squinting cover 14 and prevent squinting post 15, compression spring 12 upper end set up in the first cover 13 that prevents squinting, compression spring 12 lower extreme set up in the second prevents squinting cover 14 and the 12 lower pot head of compression spring is located prevent on the squinting post 15, first prevent squinting cover 13 lower extreme be in closing plate 7 with the slide plate 9 can penetrate when sliding each other in the second prevents skewing cover 14.
In order to facilitate the rotation of the rotating screw rod 10 by a worker, a hand wheel is arranged at the lower end of the rotating screw rod 10.
The upper end of the sealing plate 7 is provided with an elastic sealing gasket 16 (ethylene propylene diene monomer rubber sealing gasket) matched with the pressure relief opening, wherein the cross section of the elastic sealing gasket 16 is an arc-shaped section, so that the upper end of the elastic sealing gasket 16 can enter the pressure relief opening, and the side wall of the elastic sealing gasket 16 can abut against the side wall of the pressure relief opening 01.
In order to detect the pressure inside the gate valve body 1, the gate valve body 1 is provided with a mounting structure for mounting a pressure gauge at one end of the water inlet channel 2 and/or at one end of the water outlet channel 3.
Mounting structure including the slope set up in lie in on the gate valve body 12 one end of inhalant canal and/or be located the manometer mount pad 17 of 3 one ends of exhalant canal, set up on the manometer mount pad 17 with the inside intercommunication passageway 18 that is linked together of gate valve body 1, can dismantle through the screw on the manometer mount pad 17 and be provided with sealed lid 25 (end cap), will during the use sealed lid is dismantled to install the manometer on manometer mount pad 17, thereby detectable gate valve body 1 inside pressure size.
Furthermore, in this embodiment, the control assembly including set up in inhalant canal 2 with disk seat 19, the liftable between exhalant canal 3 set up in inhalant canal 2 with between exhalant canal 3 with 19 complex valve plate 20 of disk seat, rotatable set up in lie in on the gate valve body 1 inhalant canal 2 with valve rod 21 between exhalant canal 3, set up in valve cap on the gate valve body 1, wear out valve rod 21 upper end gate valve body 1 is connected with rotation hand wheel 22, valve rod 21 lower extreme passes valve plate 20 and with valve plate 20 passes through threaded connection.
Meanwhile, in order to prevent fluid leakage, a first sealing ring 23 is disposed between the valve rod 21 and the gate valve body 1, and a sealing gasket 24 is disposed between the valve plate 20 and the valve seat 19.
The working principle is as follows:
in this embodiment, two ends of a valve body 1 of the gate valve are connected with an external water inlet pipe and a water outlet pipe, a worker rotates a valve rod 21 to drive a valve plate 20 to descend to cut off fluid, when the pressure in a water inlet channel 2 is increased rapidly or when the water in a water outlet channel 3 is returned, at this time, the pressure of the fluid in the water inlet channel 2 or the water outlet channel 3 is increased, a sliding plate 9 overcomes the elasticity of a compression spring 12 to slide downwards under the action of the pressure of the fluid, the sliding plate is separated from a pressure relief opening, the fluid flows into a pressure relief chamber 6 from the water inlet channel 2 or the water outlet channel 3 at this time and finally flows out from the pressure relief hole 8, so that the pressure of the fluid in the water inlet channel 2 or the water outlet channel 3 is reduced, the impact of the fluid on the valve plate 20 is further reduced, the water leakage caused by damage to the valve plate 20 is prevented, and the service life of the valve is prolonged.
In the embodiment, the pressure inside the gate valve body 1 is reduced by discharging a small amount of fluid through the pressure relief hole 8, and compared with the damage of the gate valve, the economic loss can be effectively reduced by discharging a small amount of fluid; when the valve body 1 is used, a water receiving bucket for receiving fluid can be arranged at the lower side of the valve body and used for receiving the discharged fluid, and the economic loss can be further reduced.
Simultaneously, after the pressure release is accomplished under compression spring 12's the spring action, slide plate 9 upwards slides and resets, elastic sealing pad 16 this moment again with the cooperation of pressure release mouth realizes sealedly for the fluid no longer follows flow out in the pressure release mouth, and this moment, because elastic sealing pad 16 cross section is the arc cross-section, is convenient for when slide plate 9 upwards resets elastic sealing pad 16 gets into in the pressure release mouth.
The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.
Claims (10)
1. The utility model provides a locking gate valve with pressure release function, includes the gate valve body, set up in inhalant canal and exhalant canal in the gate valve body, set up in inhalant canal with control assembly that the same control fluid between the exhalant canal opened and close, set up in lie in on the gate valve body inhalant canal one end and/or be located exhalant canal one end is used for reducing the pressure relief device of the interior fluid pressure of gate valve body, its characterized in that: pressure release including set up in on the gate valve body and with the inside pressure release pipe that is linked together of gate valve body, set up in pressure release pipe downside pressure release mouth, can dismantle set up in pressure release cover on the pressure release pipe, set up in pressure release cavity in the pressure release cover, can slide set up in the pressure release cavity be used for with the cooperation of pressure release mouth is airtight the closing plate of pressure release mouth, set up in be used for ordering about in the pressure release cavity the closing plate keep with at least one elastic component of pressure release mouth complex, set up in be used for control on the pressure release cover the controlling means of elastic component compression degree, the pressure release sheathe in set up with the pressure release hole that the fluid outflow was supplied to the pressure release cavity intercommunication.
2. The locking gate valve with a relief function according to claim 1, characterized in that: the control device is a sliding plate which can be arranged in the pressure relief cavity in a sliding mode, a rotating screw rod which is rotatably arranged on the pressure relief sleeve through threaded connection, and the upper end of the rotating screw rod penetrates into the pressure relief cavity and abuts against the sliding plate.
3. A locking gate valve with pressure relief function according to claim 2, characterized in that: rotate the screw rod upper end and pass the slide plate, rotate and be located on the screw rod slide plate upper end and be located the mounting groove has all been seted up to the slide plate lower extreme, can dismantle on the mounting groove and be provided with the jump ring.
4. The locking gate valve with a relief function according to claim 2, characterized in that: the elastic piece is a compression spring, the upper end of the compression spring abuts against the lower end face of the sealing plate, and the lower end of the compression spring abuts against the upper end face of the sliding plate.
5. A locking gate valve with pressure relief function according to claim 4, characterized in that: and the sealing plate and the sliding plate are provided with an anti-deviation device for limiting the deviation of the compression spring during compression.
6. The locking gate valve with a relief function according to claim 5, characterized in that: the deviation preventing device includes: be provided with first anti-migration cover on the closing plate, be provided with the second on the shifting board and prevent the skew cover, lie in on the shifting board be provided with in the second prevents the skew cover and prevent the skew post, the compression spring upper end set up in the first prevents the skew cover, the compression spring lower extreme set up in the second prevents the skew cover just the lower pot head is located prevent on the skew post, first prevent the skew cover lower extreme be in the closing plate with the shifting board slides each other and can penetrate when being close to in the second prevents the skew cover.
7. The locking gate valve with a relief function according to claim 2, characterized in that: and a hand wheel is arranged at the lower end of the rotating screw rod.
8. The locking gate valve with a relief function according to claim 1, characterized in that: the sealing plate upper end be provided with be used for with pressure release mouth complex elastic sealing pad, elastic sealing pad cross section is the arc cross-section.
9. A locking gate valve with pressure relief function according to claim 1, characterized in that: and a mounting structure for mounting a pressure gauge is arranged at one end of the gate valve body, which is positioned at one end of the water inlet channel and/or one end of the water outlet channel.
10. A locking gate valve with pressure relief function according to claim 9, characterized in that: the mounting structure comprises a pressure gauge mounting seat which is obliquely arranged on the gate valve body and is positioned at one end of the water inlet channel and/or one end of the water outlet channel, a communicating channel communicated with the inside of the gate valve body is formed in the pressure gauge mounting seat, and a sealing cover is detachably arranged on the pressure gauge mounting seat through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222917238.3U CN218582297U (en) | 2022-10-31 | 2022-10-31 | Locking gate valve with pressure relief function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222917238.3U CN218582297U (en) | 2022-10-31 | 2022-10-31 | Locking gate valve with pressure relief function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218582297U true CN218582297U (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222917238.3U Active CN218582297U (en) | 2022-10-31 | 2022-10-31 | Locking gate valve with pressure relief function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218582297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336232A (en) * | 2023-03-08 | 2023-06-27 | 江苏麦科特种阀门科技有限公司 | Safety cut-off valve |
-
2022
- 2022-10-31 CN CN202222917238.3U patent/CN218582297U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336232A (en) * | 2023-03-08 | 2023-06-27 | 江苏麦科特种阀门科技有限公司 | Safety cut-off valve |
| CN116336232B (en) * | 2023-03-08 | 2023-10-20 | 江苏麦科特种阀门科技有限公司 | Safety cut-off valve |
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