CN212718356U - Pulse valve for reducing noise - Google Patents
Pulse valve for reducing noise Download PDFInfo
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- CN212718356U CN212718356U CN202021603240.8U CN202021603240U CN212718356U CN 212718356 U CN212718356 U CN 212718356U CN 202021603240 U CN202021603240 U CN 202021603240U CN 212718356 U CN212718356 U CN 212718356U
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- seat
- valve
- buffer
- pulse valve
- reducing noise
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Abstract
The utility model relates to a solenoid valve field discloses a pulse valve for reducing noise, include: a pulse valve body having a valve seat, a secondary valve cover, and a seal; the buffer mechanism is arranged in the pulse valve body and used for reducing the impact of the sealing piece on the valve seat; wherein, buffer gear includes: the mounting seat is arranged on the valve seat; the buffer seat is sleeved outside the mounting seat; the buffer spring is positioned between the mounting seat and the buffer seat, one end of the buffer spring is abutted against the valve seat, and the other end of the buffer spring is abutted against the buffer seat; and the buffer piece is arranged on the inner side of the secondary valve cover and used for buffering the impact of the sealing piece on the secondary valve cover. The utility model provides a pulse valve for reducing noise avoids the sealing member to second grade valve gap rigidity striking through the bolster when jetting in the twinkling of an eye, when finishing jetting, absorbs the inertial force that the sealing member moved down through buffer spring to avoid pulse valve to produce noise.
Description
Technical Field
The utility model relates to a solenoid valve field, concretely relates to pulse valve for reducing noise.
Background
An electromagnetic pulse valve in the prior art is composed of a clamp spring, a pilot tube assembly, a coil assembly, a corrugated washer, a screw, a primary valve cover, a primary spring, a screw, a primary diaphragm assembly, a secondary valve cover, a secondary spring, a screw, a gasket, a secondary diaphragm assembly and a valve body. The guide pipe assembly is connected to the first-stage valve cover through screws, the coil assembly and the corrugated washer are fixed to the first-stage pipe assembly through the clamp springs, the first-stage valve cover, the first-stage spring and the first-stage diaphragm assembly are connected to the second-stage valve cover through screws, and the second-stage valve cover, the second-stage spring and the second-stage diaphragm assembly are connected to the valve body through screws and gaskets.
When the air pressure balancing valve needs to work, the electromagnetic coil drives the movable iron core of the pilot tube assembly to work, the air release hole is opened, pressure balance is damaged, the diaphragm assembly is pushed away by air, and the pulse valve is opened. After a winding coil of the coil assembly is electrified, magnetic field force is generated, the magnetic force overcomes the gas pressure, the spring force and the dead weight borne by the movable iron core, the movable iron core is attracted, a cavity above the diaphragm assembly is communicated with the outside of the pulse valve after the movable iron core is attracted, the gas above the diaphragm assembly is rapidly discharged, the gas supplementing speed of a throttling hole on the diaphragm assembly is lower than the gas leakage speed, so that the diaphragm assembly is pushed open by the air pressure, and the pulse valve is opened to form instant blowing. After the electric signal is closed, the winding coil of the coil assembly loses power, the magnetic field disappears, the movable iron core resets under the action of the spring force, air pressure is rapidly established and sealed, the cavity above the diaphragm assembly is closed to be communicated with the outside, compressed air rapidly enters the upper portion of the diaphragm assembly through the throttling hole, pressure is recovered and sealed, and the pulse valve is closed. A silencer can be arranged at the exhaust hole on the secondary valve cover, and a silencing cover can be arranged above the whole air bag to cover the pulse valve, so that the noise caused by air flow injection is reduced.
Because the pulse valve works by opening and closing the diaphragm assembly, the diaphragm can be in contact with the lower surface of the inner wall of the secondary valve cover when opened, and can be in contact with the sealing surface of the valve body when closed, and the pulse valve can make a collision sound when in contact due to the fact that the opening and closing speed is high.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a pulse valve for reducing noise, which reduces noise generated when the pulse valve operates.
The utility model provides a pulse valve for reducing noise, include: a pulse valve body having a valve seat, a secondary valve cover, and a seal; the buffer mechanism is arranged in the pulse valve body and used for reducing the impact of the sealing piece on the valve seat; wherein, buffer gear includes: the mounting seat is arranged on the valve seat; the buffer seat is sleeved outside the mounting seat; the buffer spring is positioned between the mounting seat and the buffer seat, one end of the buffer spring is abutted against the valve seat, and the other end of the buffer spring is abutted against the buffer seat; the buffer piece is arranged on the inner side of the secondary valve cover and used for buffering the impact of the sealing piece on the secondary valve cover; and the cladding piece is used for cladding the sealing piece and buffering the impact of the sealing piece on the valve seat and the secondary valve cover.
The utility model provides an in the pulse valve for reducing noise, can also have such characteristic, still include: and the O-shaped ring is arranged on the outer side of the mounting seat and used for sealing the valve seat.
The utility model provides an among the pulse valve for reducing the noise, can also have such characteristic, wherein, the inboard of cushion socket has to support and holds the boss, and the cushion socket offsets with buffer spring through supporting the boss.
The utility model provides an in the pulse valve for reducing noise, can also have such characteristic, wherein, the outside of buffing pad has spacing boss, and this spacing boss is located the top of supporting holding the boss for carry on spacingly to the buffing pad.
The utility model provides an in the pulse valve for reducing noise, can also have such characteristic, still include: and the limiting block is arranged on the mounting seat and positioned above the abutting lug boss and used for limiting the buffer seat.
Action and effect of the utility model
According to the pulse valve for reducing noise, the buffer piece is arranged at the inner side of the secondary valve cover, and the buffer seat is sleeved at the outer side of the mounting seat and is connected with the sealing piece; the buffer spring is positioned between the mounting seat and the buffer seat, one end of the buffer spring is abutted against the valve seat, and the other end of the buffer spring is abutted against the buffer seat; therefore, when the pulse valve works, the pulse valve is prevented from contacting with the secondary valve cover when the sealing element moves upwards, and the buffer spring absorbs the downward inertia force of the sealing element when the pulse valve moves downwards, so that the direct collision between the sealing element and the valve seat is prevented. Therefore, the utility model provides a noise that is used for reducing the pulse valve of noise can reduce the pulse valve during operation and produce.
Drawings
Fig. 1 is a schematic view of a pulse valve for reducing noise according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a damper mechanism according to embodiment 1 of the present invention;
fig. 3 is a schematic view of a pulse valve for reducing noise according to embodiment 2 of the present invention; and
fig. 4 is a schematic view of a damper mechanism according to embodiment 2 of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the present invention is specifically described below with reference to the embodiments and the accompanying drawings.
< example 1>
Fig. 1 is a schematic view of a pulse valve for reducing noise according to embodiment 1 of the present invention.
As shown in fig. 1, the pulse valve 100 for reducing noise according to the present embodiment includes a pulse valve body 1, a damper mechanism 2, and an O-ring 3.
The pulse valve body 1 is a two-stage electromagnetic pulse valve, and includes a two-stage valve cover 101, a valve seat 102, a two-stage seal 103, a one-stage seal 104, a one-stage valve cover 105, a mounting case 106, a pilot tube assembly 107, and a coil assembly 108.
The secondary valve cover 101 is bolted over the valve seat 102 and forms a chamber with the valve seat 102 for receiving a seal.
The secondary sealing member 103 includes a return spring and a supporting seat, and the supporting seat is supported on the valve seat 102 through the return spring, so that the supporting seat is elastically connected with the secondary valve cover 101.
The primary seal 104 blocks the bleed hole in the secondary valve cover 101 and is mounted on the secondary valve cover 101 through the primary valve cover 105.
The mounting case 106 is mounted above the primary valve cover 105 by screws.
The pilot tube assembly 107 is inserted into the mounting shell 106 and is clamped to the mounting shell 106 by a clamp spring.
The coil assembly 108 is located in the mounting housing 106 and is sleeved outside the pilot tube assembly 107.
Fig. 2 is a schematic view of a damper mechanism according to embodiment 1 of the present invention.
As shown in fig. 2, the damper mechanism 2 in the present embodiment includes a mounting seat 201, a damper seat 202, a damper spring 203, a damper 204, and a covering member 205.
The mounting seat 201 has a cylindrical shape. The top of mount pad 201 outer peripheral face has spacing boss, and the bottom has the annular, and the top surface has the groove of stepping down. In the present embodiment, the bottom of the peripheral surface of the mounting seat 201 has a male screw, and the mounting seat 201 is mounted above the valve seat 102 by the male screw. In other embodiments, the mounting bases 201 may be connected together by way of a flange connection or a tight-fit connection.
The buffer base 202 is cylindrical, and the top of the inner side surface thereof is provided with a support boss. The buffer base 202 is sleeved outside the mounting base 201 and abuts against the boss and is located below the limiting boss, so that the upward movement distance of the buffer base 202 is limited. In addition, in order to achieve a good noise reduction effect, the top surface of the cushion seat 202 and the top surface of the mounting seat 201 are flush with each other when the pulse valve is in a sealed state.
The buffer spring 203 is located between the mounting seat 201 and the buffer seat 202, and one end of the buffer spring 203 abuts against the valve seat 102, and the other end abuts against the abutting boss on the buffer seat 202. In other embodiments, the buffer spring 203 may also be disposed outside the buffer seat 202, and one end of the buffer spring abuts against the valve seat 102 and the other end of the buffer spring abuts against a boss outside the buffer seat 202. The damper spring 203 serves as an energy absorbing member for reducing the impact of the abutting seat on the valve seat 102 and reducing noise, and other arrangements of the damper spring 203 are not illustrated here.
The buffer member 204 is mounted on the inner side surface of the secondary valve cover 101 by means of screws. The buffer member 204 is made of a non-metal material, such as rubber, polyurethane, nylon, etc., and has good elasticity, so that the abutting seat is prevented from being in rigid contact with the secondary valve cover 101, and the impact of the abutting seat on the secondary valve cover 101 is reduced.
The covering member 205 covers the outer side of the retainer to prevent the retainer from rigidly contacting the valve seat 102 and the cushion member 5. In this embodiment, the covering member 205 and the supporting seat form a reinforcing pad, and in other embodiments, a high-strength non-metallic material, such as rubber, polyurethane, nylon, etc., may be used.
An O-ring 3 is arranged in the ring groove for sealing the connection between the mounting seat 201 and the cushion seat 202.
The pulse valve 100 for reducing noise provided by the embodiment utilizes the orifice balance pressure on the primary sealing element 104 and the secondary sealing element 103 to form a seal, compressed air can reach a cavity above the sealing element through the orifice, and the secondary sealing element 103 is tightly attached to the valve seat 102 due to the poor pressure receiving area.
When instant blowing is needed, a coil of the coil assembly 108 generates magnetic field force after being electrified, the magnetic force overcomes the gas pressure, the spring force and the dead weight borne by the movable pilot tube assembly 107, at the moment, the upper cavity of the secondary sealing element 103 is communicated with the outside of the pulse valve, the upper gas is rapidly discharged, the gas supplementing speed of the throttling hole on the secondary sealing element 103 is lower than the gas releasing speed, and therefore the secondary sealing element 103 is pushed away by the air pressure. The secondary sealing member 103 pushed open moves upward to contact the damper 5, and noise generated when the secondary sealing member 103 hits the secondary valve cover 101 is prevented.
When the electric signal is turned off, the coil of the coil assembly 108 is de-energized, the magnetic field disappears, the pilot tube assembly 107 is reset under the action of the spring force, the air pressure is quickly established and sealed, the communication between the cavity above the secondary sealing element 103 and the outside is closed, the compressed air quickly enters the upper part of the diaphragm assembly through the throttling hole, the pressure is restored and sealed, and the pulse valve is closed. The secondary sealing member 103 contacts with the buffer seat 202 and pushes the buffer seat 202 to move downwards in the descending process, and the buffer seat 202 compresses the buffer spring 203 in the descending process to reduce the inertia force of the descending of the secondary sealing member 103. In addition, the secondary seal 103 is coated with a wrapper 204 to further reduce impact on the valve seat 102.
Effects and effects of the embodiments
According to the pulse valve for reducing noise, the buffer piece is arranged on the inner side of the secondary valve cover, and the buffer seat is sleeved on the outer side of the mounting seat and connected with the sealing piece; the buffer spring is positioned between the mounting seat and the buffer seat, one end of the buffer spring is abutted against the valve seat, and the other end of the buffer spring is abutted against the buffer seat; therefore, when the pulse valve works, the pulse valve is prevented from contacting with the secondary valve cover when the sealing element moves upwards, and the buffer spring absorbs the downward inertia force of the sealing element when the pulse valve moves downwards, so that the direct collision between the sealing element and the valve seat is prevented. Therefore, the pulse valve for reducing noise provided by the embodiment can reduce the noise generated when the pulse valve works.
< example 2>
Fig. 3 is a schematic view of a pulse valve for reducing noise according to embodiment 2 of the present invention.
As shown in fig. 3, the pulse valve for reducing noise according to the present embodiment includes a pulse valve body 6 and a damper mechanism 7 of 200.
The pulse valve body is a three-stage electromagnetic pulse valve and comprises a three-stage valve cover 601, a valve seat 602, a three-stage sealing element 603, a two-stage sealing element 604, a two-stage valve cover 605, a one-stage sealing element 606, a one-stage valve cover 607, a mounting shell 608, a pilot pipe assembly 609 and a coil assembly 610.
The tertiary valve cover 601 is bolted to the top of the valve seat 602 and forms a chamber with the valve seat 602 for receiving a tertiary seal 603.
The tertiary seal 603 includes a return spring and a support seat, and the support seat is supported on the valve seat 602 by the return spring, so that the support seat is elastically connected to the tertiary valve cover 601.
A secondary seal 604 blocks the bleed holes in the tertiary valve cover 601 and is mounted to the tertiary valve cover 601 by a secondary valve cover 605.
The primary seal 606 blocks the bleed hole in the secondary valve cover 605 and is mounted to the secondary valve cover 605 by the primary valve cover 607.
The mounting housing 608 is mounted over the primary bonnet 607 by screws.
Fig. 4 is a schematic view of a damper mechanism according to embodiment 2 of the present invention.
As shown in fig. 4, the buffer mechanism 7 in this embodiment includes a mounting seat 701, a buffer block 702, a buffer seat 703, a limit block 704, a buffer spring 705, a buffer 706, and a covering member 707.
The mounting seat 701 is cylindrical, and the upper top surface of the mounting seat is provided with a mounting boss. The mount 701 is located at the middle of the inner surface of the cylindrical support plate, and the mount 701 is mounted on the valve seat 602 via the support plate.
The buffer block 702 is cylindrical, the top end of the buffer block is fixedly connected with the abutting seat through a screw, and the bottom end of the buffer block is provided with an external thread.
The buffer base 703 is formed by welding two large hollow cylinders and one small hollow cylinder. Wherein, the hollow cylinder with large diameter is in threaded connection with the bottom end of the buffer block 702, and the inner side surface of the hollow cylinder with small diameter is provided with a clamping table.
In order to achieve better noise reduction effect, the buffer base 703 can be made of metal material, the buffer block 702 can be made of non-metal material, or the buffer base 703 and the buffer block 702 are made of high-strength non-metal material such as rubber, polyurethane, nylon and the like.
One end of the buffer spring 705 abuts against the locking platform, and the other end abuts against the mounting boss.
The buffer member 706 is mounted on the inner side surface of the tertiary valve cover 601 by means of screws. The buffer 706 is made of non-metal material, such as rubber, polyurethane, nylon, etc., and has good elasticity.
The wrapping member 707 wraps the outer side of the holding seat to prevent the holding seat from rigidly contacting the valve seat 602 and the three-stage valve cover 601.
The pulse valve 200 for reducing noise provided in this embodiment is the same as the pulse valve 100 for reducing noise provided in embodiment 1 in operation principle, and when instantaneous blowing is required, the pressure balance is broken by the coil assembly 610, and at this time, the abutting seat moves upward, and since the inner side of the tertiary valve cover 601 has the buffer 706 and the outer side of the abutting seat has the covering member 707, the abutting seat is prevented from being in rigid contact with the tertiary valve cover 601. The supporting seat does not need to move downwards during instant blowing, and the buffer seat 703 is elastically connected with the mounting seat 701 through the buffer spring 705 and the outer side of the supporting seat is provided with the coating part 707, so that the rigid contact between the supporting seat and the valve seat 602 is avoided, the supporting seat abuts against the supporting plate at the moment, and the buffer seat 703 abuts against the mounting boss.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (5)
1. A pulse valve for reducing noise, comprising:
a pulse valve body having a valve seat, a secondary valve cover, and a seal; and
the buffer mechanism is arranged in the pulse valve body and used for reducing the impact of the sealing element on the valve seat;
wherein, buffer gear includes:
the mounting seat is arranged on the valve seat;
the buffer seat is sleeved outside the mounting seat;
the buffer spring is positioned between the mounting seat and the buffer seat, one end of the buffer spring is abutted against the valve seat, and the other end of the buffer spring is abutted against the buffer seat;
the buffer piece is arranged on the inner side of the secondary valve cover and used for buffering the impact of the sealing piece on the secondary valve cover;
and the wrapping piece wraps the sealing piece and is used for buffering the impact of the sealing piece on the valve seat and the secondary valve cover.
2. The impulse valve for reducing noise according to claim 1, further comprising:
and the O-shaped ring is arranged on the outer side of the mounting seat and used for sealing the valve seat.
3. The impulse valve for reducing noise according to claim 1, wherein:
the inner side of the buffer seat is provided with a propping boss, and the buffer seat props against the buffer spring through the propping boss.
4. The impulse valve for reducing noise according to claim 3, wherein:
the outer side of the buffer seat is provided with a limiting boss, and the limiting boss is located above the abutting boss and used for limiting the buffer seat.
5. The impulse valve for reducing noise according to claim 3, further comprising:
and the limiting block is arranged on the mounting seat and positioned above the abutting lug boss and used for limiting the buffer seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021603240.8U CN212718356U (en) | 2020-08-05 | 2020-08-05 | Pulse valve for reducing noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021603240.8U CN212718356U (en) | 2020-08-05 | 2020-08-05 | Pulse valve for reducing noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212718356U true CN212718356U (en) | 2021-03-16 |
Family
ID=74913561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021603240.8U Active CN212718356U (en) | 2020-08-05 | 2020-08-05 | Pulse valve for reducing noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212718356U (en) |
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2020
- 2020-08-05 CN CN202021603240.8U patent/CN212718356U/en active Active
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