CN209856398U - Automatic air-release device for normal closed high-pressure valve fire work action - Google Patents
Automatic air-release device for normal closed high-pressure valve fire work action Download PDFInfo
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- CN209856398U CN209856398U CN201822107883.2U CN201822107883U CN209856398U CN 209856398 U CN209856398 U CN 209856398U CN 201822107883 U CN201822107883 U CN 201822107883U CN 209856398 U CN209856398 U CN 209856398U
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Abstract
The utility model discloses a normal close formula high pressure valve firer action automatic air bleeder. Including valve body (1), sealed piece (2), sealed piece elastic component (3), locking piece (4), O type circle (5), initiating explosive device (6), contact pin (7) and contact pin elastic component (8), the position of sealed piece and locking piece is changed as the power supply to the energy when using initiating explosive device to percussion, and sealed piece and valve body can realize automatic re-setting under the elastic component effect, and accessible exhaust passage realizes exhausting and aerifys two kinds of functions. The utility model discloses the foundation structure processing degree of difficulty of device is little, and the cost is lower.
Description
Technical Field
The utility model belongs to the technical field of the directional control valve among the pneumatic element and specifically relates to an utilize priming sytem percussion energy to open device of normal close formula high pressure valve door.
Background
Under high pressure (10 MPa-100 MPa), a common automatic air release device is an electromagnetic valve and consists of an electromagnetic coil, a magnetic core and a valve body, wherein when the coil is powered on or off, the magnetic core is positioned at different positions so as to realize the function of changing the on-off state of the electromagnetic valve.
The solenoid valve of wide application in market, its case material are mostly polytetrafluoroethylene or similar function's material, and after using repeatedly, case material and valve body hole contact can lead to the case material to take place structural deformation, take place to reveal slightly. In a scene with very high sealing requirement, the electromagnetic valves cannot meet the use requirement.
Although the sealing performance of part of high-end electromagnetic valves meets the requirements, the high-end electromagnetic valves have complex structures, the unit price is about ten thousand yuan, and the use cost is very high.
Disclosure of Invention
An object of the utility model is to provide an utilize initiating explosive device to arouse automatic device of opening normal close formula high pressure valve of energy.
Realize the utility model discloses the technical solution of purpose does: a normally closed type high-pressure valve initiating explosive action automatic air release device comprises a valve body, a sealing block elastic assembly, a locking block, an O-shaped ring, initiating explosive devices, a contact pin and a contact pin elastic assembly;
the valve body is provided with an air inlet channel and an exhaust channel, a sealing block elastic assembly, a sealing block and a locking block are sequentially installed in the valve body along the air flow flowing direction in an air bleeding state, an O-shaped ring is arranged between the locking block and the inner cavity of the valve body, a locking step is arranged on the locking block, the axis of a contact pin and the axis of the contact pin elastic assembly are perpendicular to the axis of the locking block, the contact pin is in contact with the position of the locking step of the locking block, an initiating explosive device is coaxially arranged with the sealing block and the locking block, and the end face of the far air inlet channel side in the.
This device is under the normal close state, and the face of lapping of sealing block and valve body contacts each other, and the self sealss between both each other under elastic component and the interior air pressure of container simultaneously, air pressure is higher, and the sealing block is better with the self sealss effect of valve body.
When the valve is opened, the firing pin in the initiating explosive device is fired at a high speed, the kinetic energy of the firing pin enables the locking block and the sealing block to move, and when the locking block moves to a specified position, the position of the locking block and the position of the sealing block are locked by the firing pin under the action of the elastic component. At this time, the clearance between the sealing block and the valve body can ensure that the valve is in a deflation state continuously.
Compared with the prior art, the utility model, it is showing the advantage: (1) the foundation structure of the device is low in processing difficulty and free of special processes. (2) The initiating explosive device is consumed for one time in each use, and other consumables are not needed. (3) The used initiating explosive device is a mature product which can be purchased in the market and has low cost.
Drawings
Fig. 1 is a schematic view of the device of the present invention in a normally closed state.
Fig. 2 is a schematic view of the device of the present invention in an operating state.
Detailed Description
The utility model discloses the structure characteristics of device:
1) the sealing block and the valve body are sealed by adopting a grinding surface, and the grinding surface eliminates a gap through precision grinding, so that sealing can be ensured under the action of external force;
2) the dynamic seal between the locking block and the valve body is sealed by adopting an O-shaped ring, and the O-shaped ring can ensure the sealing in a high-pressure state by selecting a proper material;
3) the sealing block and the contact pin can move automatically under the action of the elastic component.
The device mainly comprises a valve body, a sealing block elastic component, a locking block, an O-shaped ring, an initiating explosive device, a contact pin and a contact pin elastic component.
Wherein the valve body is a main structure and is used for installing other components. The valve body is mainly provided with an air inlet channel, an air outlet channel and a grinding surface (matched with the grinding surface of the sealing block for use).
The sealing block is mainly used for ensuring the self-sealing of the device in a normally closed state, and the sealing block and the valve body are sealed by a grinding surface. The sealing block elastic component is a pressure spring and always keeps in a pressed state, and the acting force of the pressure spring acts on the sealing block, so that the self-sealing of the sealing block and the valve body lapping surface can be realized. When the sealing block moves downwards, the sealing block is separated from the grinding surface of the valve body, and the gap between the sealing block and the grinding surface can realize the air release function.
The O-shaped ring is matched with the locking block to realize dynamic sealing between the locking block and the valve body. Meanwhile, the locking block can move downwards under the action of the initiating explosive device, so that the sealing block is pushed to be separated from the grinding surface of the valve body, a gap formed by separation is communicated with the exhaust channel, and the air release function is realized. The locking piece is provided with a stop step which is matched with the contact pin to use the axial position of the lockable locking piece.
The initiating explosive device is a mature setting product, the firing pin in the initiating explosive device can move forwards at a high speed during working, and the kinetic energy of the firing pin ensures that the firing pin can push the locking block and the sealing block to move together when contacting the locking block, so that the separation of the sealing block and the grinding surface of the valve body is realized.
The pin mainly acts to limit the position of the locking piece. The device is when normally closed state, and the contact pin pushes up in the locking piece side under contact pin elastic component effect, and when the locking piece moved the assigned position under the initiating explosive device effect (this position need be guaranteed), the contact pin can cross the locking step of locking piece under the elastic component effect, and the axial position of locking piece was restricted by the contact pin and can't return to initial position this moment. Because the locking block is in real-time contact with the sealing block, the position of the locking block is limited, namely, the separation of the sealing block and the grinding surface of the valve body is ensured, and the air release function is realized.
The specific structure of the present invention will be further explained with reference to fig. 1 and 2.
The valve body 1 is internally provided with a sealing block elastic component mounting seat 9, a sealing block cavity, a frustum 10, a through hole for connecting a sealing fast cavity and a locking block cavity, a contact pin mounting seat 11 and an initiating explosive device mounting seat 12 in sequence along the airflow flowing direction in an air bleeding state; the sealing block elastic component mounting seat 9, the sealing block cavity, the through hole for connecting the sealing fast cavity and the locking block cavity, the locking block cavity and the initiating explosive device mounting seat 12 are coaxially arranged, the initiating explosive device mounting seat 12 is only connected with a local valve body main body forming the locking block cavity, and the initiating explosive device mounting seat 12 is located far away from the air inlet channel; the contact pin mounting seat 11 is only connected with a local valve body main body forming a locking block cavity, the contact pin mounting seat 11 is perpendicular to the axis of the sealing block 2, the locking block 4 and the initiating explosive device mounting seat 12, and the intersection point of the axis of the contact pin mounting seat 11 and the axis of the initiating explosive device mounting seat 12 is located on one side, close to an air inlet channel, of the initiating explosive device mounting seat 12.
A hole communicated with the air inlet channel is arranged at any position in the sealing block cavity, the sealing block elastic component 3 and the sealing block 2 are sequentially arranged in the sealing block cavity along the airflow flowing direction in the deflation state, two ends of the elastic component 3 are respectively contacted with the valve body sealing block elastic component mounting seat 9 and the sealing block 2, and the elastic component 3 is in a compressed state; the other end of the sealing block 2 is contacted with a valve body frustum 10, the contact position side is a lapping surface, and the lapping surface is formed by lapping with the sealing block; a gap is reserved between the sealing block 2 and the cavity; the frustum 10 is provided with a connecting hole for connecting the fast sealing cavity and the locking block cavity.
A hole communicated with the exhaust channel is formed in any position of the non-contact position of the locking block cavity and the locking block 4, and the locking block 4 and the O-shaped ring 5 are sequentially arranged in the locking block cavity along the airflow flowing direction in the deflation state; the diameter of the end, in contact with the sealing block 2, of the locking block 4 is smaller than the aperture of the frustum 10, the locking block 4 penetrates through the aperture of the frustum and is in contact with the sealing block 2, the other end of the locking block 4 is provided with a stop step, and the diameter of the step, close to the air inlet channel, is larger than the diameter of the step, close to the exhaust channel; an O-shaped ring installation cavity is arranged at any position of the circumferential contact position of the locking block 4 and the locking block cavity, and the O-shaped ring 5 is installed and then simultaneously contacted with the locking block 4 and the locking block cavity;
the locking block 4 and the initiating explosive device firing pin are coaxially arranged, the end face of the locking block 4 far away from the side of the air inlet channel in the axial direction is in contact with the initiating explosive device firing pin, and the initiating explosive device 6 is fixed in the initiating explosive device mounting seat 12.
The contact pin 7 and the contact pin elastic component 8 are fixed on the contact pin mounting seat 11, and the elastic component 8 is in a pressed state; one end of the pin 7 is contacted with the large diameter part of the stop step of the locking block 4, and the direction of the pin is vertical to the axis of the locking block.
When the locking block 4 moves towards the side close to the air inlet channel, the contact pin 7 extends forwards under the action of the elastic component 8 and is contacted with the small diameter part of the locking block stopping step. Therefore, even if the initiating explosive device 6 finishes working, the locking block 4 has a force moving far away from the air inlet channel under the action of the inverse air pressure in the valve body 1, the contact pin cannot return due to the clamping and stagnation action of the locking block locking step and the contact pin 7, and the locking effect is formed. Under this state, locking piece 4 keeps in the gassing position with sealed piece 2, carries out the gassing through the antithetical couplet through-hole of connecting sealed fast cavity and locking piece cavity.
The operation of the device of the present invention will be described in detail with reference to fig. 1 and 2.
1 normally closed function
When the device is under the normally closed state, the sealing block contacts with the valve body under the action of the elastic assembly, the sealing is realized by the lapping surface of the sealing block and the valve body, and when the air pressure in the container acts on the sealing block, the pressure is higher, the contact of the sealing block and the valve body is tighter, and the self-sealing effect is better.
2 air release function
When the device is deflated, the initiating explosive device works, the firing pin in the initiating explosive device can be fired at a high speed, after the firing pin collides with the locking block and the sealing block, the locking block and the sealing block move to a certain position, the grinding surfaces of the sealing block and the valve body are separated from each other, and air can flow to the exhaust channel through a gap between the sealing block and the valve body, so that the deflation function is realized. At the moment, the contact pin locks the positions of the locking block and the sealing block through the stop step of the locking block under the action of the elastic assembly, and a gap is formed between the sealing block and the valve body, so that the air release function of the device is realized.
3 reset function
After the deflation is finished, the force of the contact pin elastic component is manually overcome to pull the contact pin back to the initial position, the sealing block and the locking block can automatically reset under the action of the sealing block elastic component, at the moment, the sealing block is in contact with the grinding surface of the valve body, and the valve returns to the normally closed state.
4 function of inflation
Under the normally closed state, the container can be reversely inflated through the air exhaust channel. During inflation, under the action of air pressure, the sealing block compresses the elastic assembly to move downwards to be separated from the valve body lapping surface, and air is inflated into the container along the gap between the sealing block and the valve body lapping surface. After the inflation is finished, the device returns to the initial position under the action of the elastic component and the air pressure, and the normally-closed function is realized again. At the moment, the initiating explosive device is installed again, the valve is in a usable state again, the initiating explosive device works, and the valve can repeatedly realize an air release function.
Claims (6)
1. The utility model provides an automatic air bleeder of normal close formula high pressure valve firer action which characterized in that: the valve comprises a valve body (1), a sealing block (2), a sealing block elastic component (3), a locking block (4), an O-shaped ring (5), an initiating explosive device (6), a contact pin (7) and a contact pin elastic component (8);
valve body (1) is provided with inlet channel, exhaust passage, along installing sealed piece elastic component (3) in proper order along the air current flow direction under the gassing state in valve body (1), sealed piece (2), locking piece (4), O type circle (5) set up between the cavity in locking piece (4) and valve body (1), be provided with the locking step on locking piece (4), contact pin (7) and contact pin elastic component (8) axis perpendicular to locking piece (4) axis, contact pin (7) and locking piece (4) locking step position department contact, initiating explosive device (6) and sealed piece (2), locking piece (4) coaxial arrangement, the far inlet channel side end face of locking piece (4) axis direction contacts with initiating explosive device (6).
2. The automatic air bleeding device according to claim 1, wherein: a sealing block elastic component mounting seat (9), a sealing block cavity, a frustum (10), a communicating hole for connecting a sealing fast cavity and a locking block cavity, a contact pin mounting seat (11) and an initiating explosive device mounting seat (12) are sequentially arranged in the valve body (1) along the airflow flowing direction in an air bleeding state; the sealing block elastic component mounting seat (9), the sealing block cavity, a through hole for connecting the sealing block cavity with the locking block cavity, the locking block cavity and the initiating explosive device mounting seat (12) are coaxially arranged, the initiating explosive device mounting seat (12) is connected with a local valve body main body forming the locking block cavity, and the initiating explosive device mounting seat (12) is located far away from the air inlet channel; the contact pin mounting seat (11) is connected with a local valve body main body forming a locking block cavity, the contact pin mounting seat (11) is perpendicular to the axis of the sealing block (2), the locking block (4) and the initiating explosive device mounting seat (12), and the intersection point of the axis of the contact pin mounting seat (11) and the axis of the initiating explosive device mounting seat (12) is located on one side, close to an air inlet channel, of the initiating explosive device mounting seat (12).
3. The automatic air bleeding device according to claim 1 or 2, wherein: a hole communicated with the air inlet channel is arranged at any position in the sealing block cavity, the sealing block elastic component (3) and the sealing block (2) are sequentially arranged in the sealing block cavity along the airflow flowing direction in the deflation state, two ends of the elastic component (3) are respectively contacted with the valve body sealing block elastic component mounting seat (9) and the sealing block (2), and the elastic component (3) is in a pressed state; the other end of the sealing block (2) is contacted with the valve body frustum (10), and the contact position side is a grinding surface; a gap is reserved between the sealing block (2) and the cavity; the frustum (10) is provided with a communicating hole for connecting the sealing fast cavity and the locking block cavity.
4. The automatic air bleeding device according to claim 1 or 2, wherein: a hole communicated with the exhaust channel is arranged at any position of the non-contact position of the locking block cavity and the locking block (4), and the locking block (4) and the O-shaped ring (5) are sequentially arranged in the locking block cavity along the airflow flowing direction in the deflation state; the diameter of the end, which is contacted with the sealing block (2), of the locking block (4) is smaller than the aperture of the frustum (10), the locking block (4) penetrates through the aperture of the frustum to be contacted with the sealing block (2), the other end of the locking block (4) is provided with a stop step, and the diameter of the step, which is close to the air inlet channel, is larger than the diameter of the step, which is close to the exhaust channel; the locking piece (4) is provided with an O-shaped ring installation cavity at any position of the circumferential contact part of the locking piece cavity, and the O-shaped ring (5) is installed and then simultaneously contacted with the locking piece (4) and the locking piece cavity.
5. The automatic air bleeding device according to claim 1 or 2, wherein: the locking block (4) and the initiating explosive device firing pin are coaxially arranged, the end face, far away from the side of the air inlet channel, of the axis direction of the locking block (4) is in contact with the initiating explosive device firing pin, and the initiating explosive device (6) is fixed in the initiating explosive device mounting seat (12).
6. The automatic air bleeding device according to claim 1 or 2, wherein: the contact pin (7) and the contact pin elastic component (8) are fixed on the contact pin mounting seat (11), and the elastic component (8) is in a pressed state; one end of the pin (7) is contacted with the large-diameter part of the stop step of the lock block (4), and the direction of the pin is vertical to the axis of the lock block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822107883.2U CN209856398U (en) | 2018-12-16 | 2018-12-16 | Automatic air-release device for normal closed high-pressure valve fire work action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822107883.2U CN209856398U (en) | 2018-12-16 | 2018-12-16 | Automatic air-release device for normal closed high-pressure valve fire work action |
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| Publication Number | Publication Date |
|---|---|
| CN209856398U true CN209856398U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822107883.2U Active CN209856398U (en) | 2018-12-16 | 2018-12-16 | Automatic air-release device for normal closed high-pressure valve fire work action |
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| CN (1) | CN209856398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519555A (en) * | 2018-12-16 | 2019-03-26 | 南京宏光通用航空装备技术有限公司 | Normally closed type high pressure valve firer acts automatic air eliminator |
-
2018
- 2018-12-16 CN CN201822107883.2U patent/CN209856398U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519555A (en) * | 2018-12-16 | 2019-03-26 | 南京宏光通用航空装备技术有限公司 | Normally closed type high pressure valve firer acts automatic air eliminator |
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