CN209943631U - Inner balance type oxygen stop valve - Google Patents
Inner balance type oxygen stop valve Download PDFInfo
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- CN209943631U CN209943631U CN201920583566.XU CN201920583566U CN209943631U CN 209943631 U CN209943631 U CN 209943631U CN 201920583566 U CN201920583566 U CN 201920583566U CN 209943631 U CN209943631 U CN 209943631U
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Abstract
The utility model relates to the field of gas pipeline valves, in particular to an internal balance type oxygen stop valve, which comprises a valve body, wherein an air inlet channel, a valve plug, a valve seat and an output channel are sequentially arranged in the valve body along the direction of gas entering, a face mask is fixed at the top of the valve body, and an opening and closing hand wheel is arranged on the face mask; through setting the valve rod to inside and outside nested form, and slide from top to bottom through the air guide handle control inner sleeve pole that sets up, the bottom of interior guide arm is equipped with air guide hole and air guide channel, when gas gathering is at inlet channel, promote the valve rod through the air guide handle earlier, make air guide hole and waist shape hole intercommunication, switch on with this and inlet channel, at this moment, the air current enters into air guide channel through the air guide hole, entering into outlet channel, the granule with the gathering discharges earlier from this, simultaneously the atmospheric pressure between balanced inlet channel and the outlet channel, when opening the valve plug again, just can reduce the damage to the valve plug sealing member.
Description
Technical Field
The utility model relates to a gas pipeline valve field specifically is an interior balance formula oxygen stop valve.
Background
The stop valve, also called stop valve, is the most widely used valve, and it is popular because the friction between the sealing surfaces is small in the opening and closing process, it is durable, the opening height is not large, it is easy to manufacture, it is convenient to maintain, it is not only suitable for middle and low pressure, but also suitable for high pressure. The closing principle of the stop valve is that the sealing surface of the valve clack is tightly attached to the sealing surface of the valve seat by means of pressure of a valve rod to prevent medium from flowing, the valve plays an important role in cutting off and throttling the medium in a pipeline where the valve is located, the stop valve is an extremely important cut-off valve, the sealing of the stop valve is realized by applying torque to a valve rod, the valve rod applies pressure to the valve clack in the axial direction to enable the sealing surface of the valve clack to be tightly attached to the sealing surface of the valve seat, and the medium is prevented from leaking along a gap between.
When the stop valve is opening and close of the higher gas of control duct internal pressure, the pressure of opening is high, opens the difficulty to before the valve is opened, long time pile up gas in the valve pocket, remain the particulate matter, when the valve plug was opened, the particulate matter led to the fact wearing and tearing to the valve plug easily, and pressure can cause the sealing member to warp, influences its leakproofness, the damage condition of aggravation sealing member. Accordingly, one skilled in the art provides an internal balancing oxygen shut-off valve to solve the problems set forth in the background above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an interior balanced type oxygen stop valve to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an internal balance formula oxygen stop valve, includes the valve body, inside direction along the gaseous entering of valve body is equipped with inlet channel, valve plug, disk seat and output channel in proper order, the top of valve body is fixed with the face guard, be equipped with on-off hand wheel on the face guard, the intermediate position department of opening and closing hand wheel is fixed with the lead screw loop bar, just the bottom of lead screw loop bar is connected with the built-up loop bar in the valve, the bottom of built-up loop bar in the valve is connected with the valve plug, the bottom mounting of lead screw loop bar has the adapter sleeve, the inner wall sliding connection of lead screw loop bar has the interior slide bar that runs through both ends about the lead screw loop bar, the top of interior slide bar is fixed with the air guide handle, the air guide handle is located the top of opening and closing hand wheel, the built-up loop bar in the valve includes outer loop bar and interior guide arm, interior guide arm is fixed the, the bottom fixedly connected with of interior guide arm the valve plug is located among the inlet channel waist shape hole has been seted up to the outer wall of outer loop bar, seted up the air guide hole on the interior guide arm, just the air guide channel of intercommunication output channel and air guide hole has been seted up to the intermediate position department of interior guide arm.
As a further aspect of the present invention: and a sealing ring is embedded in the outer wall of the inner guide rod and is positioned above the air guide hole.
As a further aspect of the present invention: the outer wall of the top end of the outer sleeve rod is fixed with a fixed key, the connecting sleeve is provided with a key groove matched with the fixed key, and the outer sleeve rod is fixedly connected with the connecting sleeve through the fixed key.
As a further aspect of the present invention: the outer wall of the inner sliding rod is fixed with a limiting ring, the outer wall of the inner sliding rod is sleeved with a spring, and the spring is located inside the connecting sleeve and located on the upper end face of the limiting ring.
As a further aspect of the present invention: the diameter of the inner sliding rod is larger than that of the inner guide rod, and a hollow cavity matched with the outer guide rod and the inner guide rod is formed in the inner side of the outer guide rod.
As a further aspect of the present invention: the telescopic length of the spring is equal to the length of the waist-shaped hole.
As a further aspect of the present invention: and a sealing washer matched with the screw rod loop bar is arranged at the top of the inner sliding rod.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a set the valve rod to inside and outside nested form, and slide from top to bottom through the air guide handle control inner sleeve pole that sets up, the bottom of interior guide arm is equipped with air guide hole and air guide channel, when gaseous gathering at inlet channel, promote the valve rod through the air guide handle earlier, make air guide hole and waist shape hole intercommunication, switch on with this and inlet channel, at this moment, the air current enters into air guide channel through the air guide hole, entering into output channel, the granule with the gathering is earlier discharged from this, simultaneously atmospheric pressure between balanced inlet channel and the output channel, when opening the valve plug again, just can reduce the damage to the valve plug sealing member.
2. The utility model discloses reform transform simply to current valve, only need change valve rod assembly, need not change the valve body structure, consequently be convenient for realize batch processing production, reform transform with low costs, be favorable to carrying out marketing.
Drawings
FIG. 1 is a schematic structural diagram of an internal balance type oxygen shutoff valve;
FIG. 2 is a schematic cross-sectional view of an internal balance oxygen shutoff valve;
FIG. 3 is a schematic structural diagram of A in an internal balance type oxygen stop valve;
fig. 4 is a schematic structural diagram of B in an internal balance type oxygen stop valve.
In the figure: 1. a valve body; 101. an air intake passage; 102. an output channel; 103. a valve seat; 104. a valve plug; 11. a face mask; 2. opening and closing a hand wheel; 3. an air guide handle; 4. a combined loop bar in the valve; 41. an outer loop bar; 411. a waist-shaped hole; 412. a fixed key; 42. an inner guide rod; 421. an air vent; 422. a seal ring; 423. an air guide channel; 5. a screw rod sleeve rod; 51. connecting sleeves; 52. an inner slide bar; 521. a limiting ring; 522. a spring.
Detailed Description
Referring to fig. 1-4, in the embodiment of the present invention, an internal balance type oxygen shutoff valve includes a valve body 1, an air inlet channel 101, a valve plug 104, a valve seat 103 and an output channel 102 are sequentially disposed inside the valve body 1 along a direction of air entering, a face mask 11 is fixed on a top of the valve body 1, an opening and closing handwheel 2 is disposed on the face mask 11, a screw rod 5 is fixed at a middle position of the opening and closing handwheel 2, an inner combined rod 4 is connected to a bottom end of the screw rod 5, the valve plug 104 is connected to a bottom end of the inner combined rod 4, a connecting sleeve 51 is fixed to a bottom end of the screw rod 5, an inner slide rod 52 penetrating through upper and lower ends of the screw rod 5 is slidably connected to an inner wall of the screw rod 5, an air guide handle 3 is fixed to a top end of the inner slide rod 52, the air guide handle 3 is disposed above the opening and closing handwheel 2, the inner combined rod 4 includes an outer rod 41 and an inner guide rod, the bottom of the inner guide rod 42 penetrates through the valve plug 104, the bottom of the inner guide rod 42 is fixedly connected with the valve plug 104, the outer wall of the outer sleeve rod 41 positioned in the air inlet channel 101 is provided with a waist-shaped hole 411, the inner guide rod 42 is provided with an air guide hole 421, and the middle position of the inner guide rod 42 is provided with an air guide channel 423 for communicating the output channel 102 and the air guide hole 421.
In fig. 1: the top of the valve body 1 is fixed with a face shield 11, the face shield 11 is provided with an opening and closing hand wheel 2, the air guide handle 3 is positioned above the opening and closing hand wheel 2, the opening and closing hand wheel 2 can rotate on the face shield 11 to control the rotation of the screw rod loop bar 5, and the air guide handle 3 can slide up and down to drive the inner slide bar 52 and the inner guide bar 42 to slide.
In fig. 2: a screw rod sleeve rod 5 is fixed at the middle position of the opening and closing hand wheel 2, the bottom end of the screw rod sleeve rod 5 is connected with an inner combined sleeve rod 4, the bottom end of the inner combined sleeve rod 4 is connected with a valve plug 104, the bottom end of the screw rod sleeve rod 5 is fixed with a connecting sleeve 51, the inner wall of the screw rod sleeve rod 5 is connected with an inner slide rod 52 which penetrates through the upper end and the lower end of the screw rod sleeve rod 5 in a sliding manner, the top end of the inner slide rod 52 is fixed with an air guide handle 3, the air guide handle 3 is positioned above the opening and closing hand wheel 2, the inner combined sleeve rod 4 comprises an outer sleeve rod 41 and an inner guide rod 42, the inner guide rod 42 is fixed at the bottom of the inner slide rod 52, the bottom of the inner guide rod 42 penetrates through the valve plug 104, the bottom of the inner guide rod 42 is fixedly connected with a valve plug 104, the outer wall of the outer sleeve rod 41 positioned in the air inlet channel 101 is provided with a waist-shaped hole 411, when the control valve is opened, firstly, the air guide handle 3 is lifted, the inner slide rod 52 drives the inner guide rod 42 at the bottom end to slide, therefore, the air guide hole 421 on the inner guide rod 42 moves to the position of the waist-shaped hole 411 to be communicated with the air inlet channel 101, then the gathered particles firstly enter the air guide hole 421 and then enter the output channel 102 through the air guide channel 423, meanwhile, the air pressure between the air inlet channel 101 and the output channel 102 is balanced, after a period of time, the opening and closing hand wheel 2 is rotated, the screw rod sleeve 5 is in threaded fit with the face mask 11 to generate high displacement, the connecting sleeve 51 drives the outer sleeve rod 41 inside the connecting sleeve 51 to rotate, and the valve plug 104 is separated from the valve seat 103, damage to the seal on the plug 104 can be reduced.
In fig. 3: the outer wall of the top end of the outer sleeve rod 41 is fixed with a fixed key 412, the connecting sleeve 51 is provided with a key slot matched with the fixed key 412, the outer sleeve rod 41 and the connecting sleeve 51 are fixedly connected through the fixed key 412, the connection through the fixed key 412 can ensure that the connecting sleeve 51 can drive the outer sleeve rod 41 to rotate when rotating, the outer wall of the inner sliding rod 52 is fixed with a limiting ring 521, the outer wall of the inner sliding rod 52 is sleeved with a spring 522, the spring 522 is located inside the connecting sleeve 51 and on the upper end face of the limiting ring 521, the telescopic length of the spring 522 is equal to the length of the waist-shaped hole 411, because the spring 522 is located between the connecting sleeve 51 and the limiting ring 521, the inner guide rod 42 has downward pressing force, and can be closed when the.
In fig. 4: the outer wall of the outer guide rod 41 in the air inlet channel 101 is provided with a waist-shaped hole 411, the outer wall of the inner guide rod 42 is embedded with a sealing ring 422, the sealing ring 422 is positioned above the air guide hole 421, the diameter of the inner slide rod 52 is larger than that of the inner guide rod 42, the inner side of the outer guide rod 41 is provided with a hollow cavity matched with the outer guide rod 41 and the inner guide rod 42, the sealing performance between the inner guide rod 42 and the outer guide rod 41 can be improved through the sealing ring 422, and the inner guide rod 42 and the outer guide rod 41 do not bear the pressure of gas due to vertical movement.
The utility model discloses a theory of operation is: when the control valve is opened, firstly, the air guide handle 3 is lifted, the inner sliding rod 52 drives the inner guide rod 42 at the bottom end of the inner sliding rod to slide, therefore, the air guide hole 421 on the inner guide rod 42 moves to the position of the waist-shaped hole 411 to be communicated with the air inlet channel 101, then the gathered particles firstly enter the air guide hole 421 and then enter the output channel 102 through the air guide channel 423, meanwhile, the air pressure between the air inlet channel 101 and the output channel 102 is balanced, after a period of time, the opening and closing hand wheel 2 is rotated, the screw rod sleeve 5 is in threaded fit with the mask 11, the height displacement occurs, the connecting sleeve 51 drives the outer sleeve rod 41 inside the connecting sleeve to rotate, the valve plug 104 is separated from the valve seat 103, and the damage to a sealing element on the valve plug 104 can.
The above-mentioned, 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 (7)
1. The inner balance type oxygen stop valve comprises a valve body (1), wherein an air inlet channel (101), a valve plug (104), a valve seat (103) and an output channel (102) are sequentially arranged in the valve body (1) along the direction of gas entering, a face mask (11) is fixed at the top of the valve body (1), an opening and closing hand wheel (2) is arranged on the face mask (11), the inner balance type oxygen stop valve is characterized in that a lead screw sleeve rod (5) is fixed at the middle position of the opening and closing hand wheel (2), an inner combined sleeve rod (4) is connected to the bottom end of the lead screw sleeve rod (5), the bottom end of the inner combined sleeve rod (4) is connected with the valve plug (104), a connecting sleeve (51) is fixed to the bottom end of the lead screw sleeve rod (5), an inner sliding rod (52) penetrating through the upper end and the lower end of the lead screw sleeve rod (5) is connected to the inner wall of the lead screw sleeve rod (5) in a sliding manner, air guide handle (3) are located open and close the top of hand wheel (2), combination loop bar (4) are including outer guide arm (41) and interior guide arm (42) in the valve, interior guide arm (42) are fixed the bottom of interior slide bar (52), just the bottom of interior guide arm (42) is run through valve plug (104), the bottom fixedly connected with of interior guide arm (42) valve plug (104) are located in inlet channel (101) waist shape hole (411) have been seted up to the outer wall of outer guide arm (41), air guide hole (421) have been seted up on interior guide arm (42), just the intercommunication has been seted up to the intermediate position department of interior guide arm (42) air guide channel (423) of output channel (102) and air guide hole (421).
2. The internal balance type oxygen stop valve as claimed in claim 1, wherein a sealing ring (422) is embedded in the outer wall of the inner guide rod (42), and the sealing ring (422) is located above the air guide hole (421).
3. The internal balance type oxygen shutoff valve as claimed in claim 1, wherein a fixing key (412) is fixed on the outer wall of the top end of the outer thimble (41), the connecting sleeve (51) is provided with a key slot matched with the fixing key (412), and the outer thimble (41) and the connecting sleeve (51) are fixedly connected through the fixing key (412).
4. The internal balance type oxygen stop valve as claimed in claim 1, wherein a limit ring (521) is fixed on the outer wall of the internal sliding rod (52), a spring (522) is sleeved on the outer wall of the internal sliding rod (52), and the spring (522) is located inside the connecting sleeve (51) and on the upper end face of the limit ring (521).
5. The internal balance type oxygen stop valve as claimed in claim 1, wherein the diameter of the internal sliding rod (52) is larger than that of the internal guide rod (42), and the inner side of the external guide rod (41) is provided with a hollow cavity matched with the external guide rod (41) and the internal guide rod (42).
6. An internal balancing oxygen shut-off valve according to claim 4, characterized in that the spring (522) has a telescopic length equal to the length of the kidney-shaped hole (411).
7. The internal balance oxygen stop valve of claim 1, wherein the top of the internal slide rod (52) is provided with a sealing gasket matched with the screw rod loop bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920583566.XU CN209943631U (en) | 2019-04-26 | 2019-04-26 | Inner balance type oxygen stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920583566.XU CN209943631U (en) | 2019-04-26 | 2019-04-26 | Inner balance type oxygen stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209943631U true CN209943631U (en) | 2020-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920583566.XU Expired - Fee Related CN209943631U (en) | 2019-04-26 | 2019-04-26 | Inner balance type oxygen stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209943631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397966A (en) * | 2020-04-01 | 2020-07-10 | 湖南鼎誉检验检测有限公司 | Liquid food detects uses portable sampling device |
-
2019
- 2019-04-26 CN CN201920583566.XU patent/CN209943631U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397966A (en) * | 2020-04-01 | 2020-07-10 | 湖南鼎誉检验检测有限公司 | Liquid food detects uses portable sampling device |
| CN111397966B (en) * | 2020-04-01 | 2022-08-23 | 湖南鼎誉检验检测股份有限公司 | Liquid food detects uses portable sampling device |
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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: 20200114 Termination date: 20200426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |