CN209725372U - Gate valve - Google Patents
Gate valve Download PDFInfo
- Publication number
- CN209725372U CN209725372U CN201920462510.9U CN201920462510U CN209725372U CN 209725372 U CN209725372 U CN 209725372U CN 201920462510 U CN201920462510 U CN 201920462510U CN 209725372 U CN209725372 U CN 209725372U
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- China
- Prior art keywords
- valve
- valve body
- spool
- valve rod
- pipe joint
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- Expired - Fee Related
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Abstract
The utility model provides a kind of gate valve, belongs to valve technology field.It solve the problems, such as in existing gate valve spool and metering hole cooperation current limliting speed it is relatively slow, to cannot timely close control valve.This gate valve includes the valve body with admitting pipe joint, titting water outlet, admitting pipe joint and titting water outlet are distributed in axial direction and the rwo is interconnected in valve body, it is equipped with valve rod on valve body and the valve rod and valve seal cooperate, the lower end spiral of valve rod is connected with spool, the upper end of valve rod stretches out valve body and is fixed with handle, when being additionally provided with the axial direction oscilaltion when valve rod with movable valve plug in valve rod in valve body, valve rod can be assisted to drive the spool glide downwards self-checking device that makes both admitting pipe joint, titting water outlet shut off.The utility model structure is simple, spool closes fast speed of shutting off in valve body, the timely closing gate valve of energy, long service life.
Description
Technical field
The utility model belongs to valve technology field, is related to a kind of gate valve.
Background technique
Control gate valve is also known as gate valve, is the control unit in fluid delivery system, have water conservancy diversion, shut off, adjust, throttling,
Prevent from flowing backwards, shunt or the functions such as overflow release, can be used for controlling empty gas and water, steam, various aggressive chemistry media, mud,
Various types of fluid activities such as liquid metal and radioactive substance.
Gate valve most at present when in use, in closing gate valve, is closed slower；Such as Chinese patent Patent No.:
A kind of water cut-off protection throttling gate valve, specific structure described in " 201721530669.7 " are as follows: including throttling gate valve main body, hand
Wheel, hydraulic pressure sensor enter head piece and controller, and throttling gate valve main body includes top cover, main cover and bottom cover, and the top of main cover is solid
Surely there is top cover, the lower section of main cover is arranged in bottom cover, and handwheel is arranged at the top of top cover, and handwheel is connect with connecting rod, and connecting rod is worn
It crosses in connector sleeve, and the end of connecting rod is connected with spool, the bottom of spool is connected with spring, and the side fixation of spool is limited
The bottom of spool is arranged in flow post, hydraulic pressure sensor, enters the left side that main cover is arranged in head piece, and be provided with out and flow on the right side of main cover
Mouthful, entering and be provided with fixed plate in head piece and outflow port, and restricted orifice is set in fixed plate, controller is arranged in bottom cover,
And alarm device is provided on the outside of bottom cover.
In such a configuration, spool and metering hole cooperation current limliting speed it is relatively slow, to cannot timely close control lock
Valve, and then will lead to the reduced service life of control gate valve.
Summary of the invention
The purpose of this utility model is to provide that a kind of structure is simple, valve for the above-mentioned problems in the prior art
Core exercises both admitting pipe joint, titting water outlets fast speed of shutting off, gate valve with long service life to gliding in valve body.
The purpose of this utility model can be realized by the following technical scheme: a kind of gate valve, including with admitting pipe joint,
The valve body of titting water outlet, the admitting pipe joint and titting water outlet are distributed in axial direction and the rwo is mutually interconnected in valve body
It is logical, it is equipped with valve rod on the valve body and the valve rod and valve seal cooperation, the lower end spiral of the valve rod are connected with energy
Both keep both admitting pipe joint, titting water outlet through-flow or make admitting pipe joint, titting water outlet the spool to shut off, it is described
The upper end of valve rod stretches out valve body and is fixed with handle, which is characterized in that is additionally provided in the valve body when valve rod band movable valve plug
In the axial direction oscilaltion of valve rod, it can assist valve rod that spool glide downwards is driven to make admitting pipe joint, titting water outlet
The self-checking device that the two is shut off.
The valve body of this gate valve is provided with self-checking device, and spool can be made axial on valve rod by self-checking device
It quickly slides downwards, energy quick closedown admitting pipe joint, titting water outlet achieve the effect that shut off, fast speed of shutting off.
In above-mentioned gate valve, the cross section of the spool is rectangular, is provided in the valve body rectangular
Targeting port, the spool vertical sliding is threaded through in the targeting port.The spool is by the structure of itself in targeting port
Rotate in a circumferential direction limit, it is made only to allow axial slide in targeting port.
In above-mentioned gate valve, connecting hole is offered on the spool vertically, there is internal screw thread in the connecting hole,
There is external screw thread, the valve rod is matched by the internal screw thread spiral of external screw thread and spool on the outer wall of the lower end of the valve rod
It closes, when valve rod rotates clockwise on valve body, spool is slided straight down in the intracorporal targeting port of valve and supported with valve interior wall
By causing admitting pipe joint, titting water outlet to shut off closing, when valve rod rotates counterclockwise on valve body, spool is intracorporal in valve
Sliding straight up in targeting port causes the through-flow opening of admitting pipe joint, titting water outlet, the valve with valve interior wall disengaging
The axially stop block for preventing valve rod axial float in valve body is additionally provided between bar and valve body.The purpose being arranged in this way passes through
External screw thread can make spool is axial on valve rod to slide up and down with internal screw thread threaded engagement.
In above-mentioned gate valve, the axially stop block includes being removably fixed in the intracorporal limit sleeve of valve, described
Limit sleeve inner wall on be provided with detent slot, the outer wall of the valve rod has bulge loop, when valve rod is threaded through in valve body, and
The bulge loop is in the detent slot.In actual use, the bulge loop and detent slot axially engage and valve rod can be prevented in valve body
Interior axial float.
In above-mentioned gate valve, the medium position of the inner wall of the valve body is provided with link slot, in the link slot
With internal screw thread, there is external screw thread on the outer wall of the limit sleeve, the limit sleeve is connected to by external screw thread spiral
On the internal screw thread of access slot.The purpose being arranged in this way is to facilitate limit sleeve dismantling connection in valve body.
In above-mentioned gate valve, the self-checking device includes compressed spring, on the lower end surface of the limit sleeve
It is provided with upper spring seat, lower spring cup is provided on the upper surface of the spool, the compressed spring is set in described
On valve rod and between upper spring seat, lower spring cup and the upper end resilient abutment of the compressed spring is in the upper spring seat
On, the lower end resilient abutment of the compressed spring is on the lower spring cup.The compressed spring has auxiliary spool in valve
It is axially downwardly slided on bar, admitting pipe joint, titting water outlet is made to shut off fast speed；When spool in valve body glide downwards with
When valve interior wall seals against, also having makes seal spool be resisted against the intracorporal pretightning force of valve, causes spool and valve interior wall
It is more preferable to seal against effect, long service life.
In above-mentioned gate valve, axially opposing valve interior wall is fixedly provided with gasket with spool, when valve rod band movable valve plug
When glide downwards, and the spool is sealed against with the gasket.The purpose being arranged in this way is to guarantee spool and valve interior wall
The validity sealed against.
Compared with prior art, the advantages of this gate valve are as follows: structure is simple, spool closed in valve body make admitting pipe joint,
Titting water outlet shuts off fast speed, can timely closing gate valve, long service life, when being closed in valve body there are also spool, sealing
Preferable, the long service life of property.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of this gate valve.
In figure, 1, admitting pipe joint；2, titting water outlet；3, valve body；4, valve rod；5, spool；6, handle；7, targeting port；
8, connecting hole；9, limit sleeve；10, bulge loop；11, compressed spring；12, upper spring seat；13, lower spring cup；14, gasket.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this gate valve is mainly made of valve body 3, there is admitting pipe joint 1, titting water outlet 2 on the valve body 3,
Admitting pipe joint 1 and titting water outlet 2 are distributed in axial direction and the rwo is interconnected in valve body 3, are equipped with valve rod on valve body 3
4 and the valve rod 4 and valve body 3 sealing cooperation, the lower end spiral of valve rod 4, which is connected with, can make 2 liang of admitting pipe joint 1, titting water outlet
The spool 5 that person is through-flow or admitting pipe joint 1,2 the two of titting water outlet is made to shut off, the upper end of valve rod 4 are stretched out valve body 3 and are simultaneously fixed with
Handle 6；In actually manufacture, the specific structure of the spool 5 and the cooperation of 3 inner wall of valve body are as follows: the cross section of spool 5 is rectangular,
Rectangular targeting port 7 is provided in valve body 3,5 vertical sliding of spool is threaded through in targeting port 7.
In practical application, the connection structure of the valve rod 4 and spool 5 are as follows: offer connecting hole 8 on spool 5 vertically, connect
There is internal screw thread in hole 8, there is external screw thread on the outer wall of the lower end of valve rod 4, valve rod 4 passes through the internal screw thread of external screw thread and spool 5
Threaded engagement, when valve rod 4 rotates clockwise on valve body 3, spool 5 slided straight down in the targeting port 7 in valve body 3 with
3 inner wall of valve body is against causing admitting pipe joint 1, titting water outlet 2 to shut off closing, when valve rod 4 rotates counterclockwise on valve body 3
When, spool 5 slides straight up in the targeting port 7 in valve body 3 causes admitting pipe joint 1, outlet pipe with the disengaging of 3 inner wall of valve body
The through-flow opening of connector 2, being additionally provided between valve rod 4 and valve body 3 prevents the axial limiting of the axial float in valve body 3 of valve rod 4 from filling
It sets.
In actually manufacture, the specific embodiment of the axially stop block are as follows: be mainly made of limit sleeve 9, the limit
Set 9 is removably fixed in valve body 3, and detent slot is provided on the inner wall of limit sleeve 9, and the outer wall of valve rod 4 has bulge loop 10, works as valve
When bar 4 is threaded through in valve body 3, and the bulge loop 10 is in the detent slot；In practical application, the limit sleeve 9 and valve body 3
Connection structure are as follows: the medium position of the inner wall of valve body 3 is provided with link slot, has internal screw thread in link slot, limit sleeve 9 it is outer
There is external screw thread, limit sleeve 9 is connected on the internal screw thread of link slot by external screw thread spiral on wall.
When being additionally provided with the axial direction oscilaltion when valve rod 4 with movable valve plug 5 in valve rod 4 in valve body 3, valve rod can be assisted
4 self-checking devices for making both admitting pipe joint 1, titting water outlet 2 shut off with 5 glide downwards of movable valve plug.
In actually manufacture, the specific embodiment of the self-checking device are as follows: be mainly made of, limit compressed spring 11
It is provided with upper spring seat 12 on the lower end surface of set 9, lower spring cup 13 is provided on the upper surface of spool 5, compressed spring 11 is arranged
On the valve rod 4 and between upper spring seat 12, lower spring cup 13 and the upper end resilient abutment of the compressed spring 11 exists
On the upper spring seat 12, the lower end resilient abutment of compressed spring 11 is on the lower spring cup 13.
In order to guarantee validity that spool 5 and 3 inner wall of valve body seal against, valve body 3 inner wall axially opposing with spool 5 is also
It is installed with gasket 14, when valve rod 4 is with 5 glide downwards of movable valve plug, and the spool 5 is sealed against with the gasket 14.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.Herein
Described in specific embodiment be only the spirit of the present invention is given an example.The utility model technical field
Technical staff can make various modifications or additions to the described embodiments or be substituted in a similar manner, but
Without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (7)
1. a kind of gate valve, including the valve body (3) with admitting pipe joint (1), titting water outlet (2), the admitting pipe joint
(1) and titting water outlet (2) is distributed in axial direction and the rwo is interconnected in valve body (3), is equipped on the valve body (3)
Valve rod (4) and the valve rod (4) and valve body (3), which seal, to be cooperated, and the lower end spiral of the valve rod (4) is connected with and water inlet pipe can be made to connect
The spool (5) that both head (1), titting water outlet (2) are through-flow or admitting pipe joint (1), titting water outlet (2) the two is made to shut off,
The upper end of the valve rod (4) stretches out valve body (3) and is fixed with handle (6), which is characterized in that also sets in the valve body (3)
It is equipped with when valve rod (4) with movable valve plug (5) in the axial direction oscilaltion of valve rod (4), valve rod (4) band movable valve plug can be assisted
(5) self-checking device that glide downwards make both admitting pipe joint (1), titting water outlet (2) shut off.
2. gate valve according to claim 1, which is characterized in that the cross section of the spool (5) is rectangular, described
It is provided with rectangular targeting port (7) in valve body (3), the spool (5) vertical sliding is threaded through the targeting port (7)
In.
3. gate valve according to claim 2, which is characterized in that connecting hole (8) are offered vertically on the spool (5),
There is internal screw thread in the connecting hole (8), there is external screw thread, the valve rod on the outer wall of the lower end of the valve rod (4)
(4) the internal screw thread threaded engagement for passing through external screw thread and spool (5), when valve rod (4) rotates clockwise on valve body (3), spool
(5) slided straight down in the targeting port (7) in valve body (3) with valve body (3) inner wall against cause admitting pipe joint (1), go out
Water pipe head (2) is shut off closing, when valve rod (4) rotates counterclockwise on valve body (3), guiding of the spool (5) in valve body (3)
Sliding straight up in mouth (7) causes admitting pipe joint (1), titting water outlet (2) through-flow opening with the disengaging of valve body (3) inner wall,
Being additionally provided between the valve rod (4) and valve body (3) prevents valve rod (4) from filling in the axial limiting of valve body (3) interior axial float
It sets.
4. gate valve according to claim 3, which is characterized in that the axially stop block includes being removably fixed in valve
Limit sleeve (9) in body (3) is provided with detent slot, the outer wall tool of the valve rod (4) on the inner wall of the limit sleeve (9)
Have bulge loop (10), when valve rod (4) be threaded through valve body (3) it is interior when, and the bulge loop (10) is in the detent slot.
5. gate valve according to claim 4, which is characterized in that the medium position of the inner wall of the valve body (3) is provided with
Link slot, the link slot is interior to have internal screw thread, has external screw thread, the limit on the outer wall of the limit sleeve (9)
Set (9) is connected on the internal screw thread of link slot by external screw thread spiral.
6. gate valve according to claim 5, which is characterized in that the self-checking device includes compressed spring (11),
It is provided with upper spring seat (12) on the lower end surface of the limit sleeve (9), is provided with lower bullet on the upper surface of the spool (5)
Spring abutment (13), the compressed spring (11) are set on the valve rod (4) and in upper spring seat (12), lower spring cup
(13) between and the upper end resilient abutment of the compressed spring (11) is on the upper spring seat (12), the compressed spring
(11) lower end resilient abutment is on the lower spring cup (13).
7. gate valve according to claim 6, which is characterized in that axially opposing valve body (3) inner wall is also fixed with spool (5)
Have gasket (14), when valve rod (4) band movable valve plug (5) glide downwards, and the spool (5) and the gasket (14) against
Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920462510.9U CN209725372U (en) | 2019-04-08 | 2019-04-08 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920462510.9U CN209725372U (en) | 2019-04-08 | 2019-04-08 | Gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209725372U true CN209725372U (en) | 2019-12-03 |
Family
ID=68690736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920462510.9U Expired - Fee Related CN209725372U (en) | 2019-04-08 | 2019-04-08 | Gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209725372U (en) |
-
2019
- 2019-04-08 CN CN201920462510.9U patent/CN209725372U/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: 20191203 Termination date: 20210408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |