CN212480327U

CN212480327U - Silencing electromagnetic valve

Info

Publication number: CN212480327U
Application number: CN202022066119.2U
Authority: CN
Inventors: 裘孔文; 裘天鹏; 裘晨曦
Original assignee: Shaoxing Tianchen Machinery Co ltd
Current assignee: Shaoxing Tianchen Machinery Co ltd
Priority date: 2020-09-19
Filing date: 2020-09-19
Publication date: 2021-02-05
Anticipated expiration: 2030-09-19

Abstract

The utility model discloses a amortization solenoid valve relates to the solenoid valve, aims at solving the not good enough problem of amortization noise reduction effect of the hush pipe of straight tube-shape, and its technical scheme main points are: including valve body, fixed connection at the cylinder of valve body one end, be connected and be located the piston rod in the valve body with the cylinder transmission, fixed connection rubber valve on the piston rod and rotate with the piston rod and be connected and with valve body fixed connection's connecting pipe, logical groove has been seted up on the valve body lateral wall, can dismantle on the valve body lateral wall be connected with lead to the L type pipe of groove intercommunication, L type intraductal detachable connection has two sections amortization subassemblies, the exit of L type pipe can be dismantled through tightly fastening the structure and be connected with the filter screen. The utility model discloses an amortization solenoid valve improves the noise cancelling effect of making an uproar that falls of solenoid valve.

Description

Silencing electromagnetic valve

Technical Field

The utility model relates to a solenoid valve, more specifically says that it relates to a amortization solenoid valve.

Background

The solenoid valve is a special valve installed on the mechanical pump.

And because present solenoid valve when with the pump intercommunication, the pump can be to the air suction at the operation in-process, and a large amount of noises such as wind whistle can take place for the air to it is comparatively noisy to lead to the operational environment of pump, consequently people can communicate a straight tube-shape hush pipe on the solenoid valve, but straight tube-shape hush pipe's amortization noise reduction effect is not good enough.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a noise reduction solenoid valve improves the noise cancelling effect of making an uproar that falls of solenoid valve.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a amortization solenoid valve, includes valve body, fixed connection at the cylinder of valve body one end, be connected and be located piston rod, the rubber valve of fixed connection on the piston rod of valve body with the cylinder transmission and rotate with the piston rod and be connected and with valve body fixed connection's connecting pipe, logical groove has been seted up on the valve body lateral wall, can dismantle on the valve body lateral wall be connected with the L type pipe that leads to the groove intercommunication, L type intraductal can dismantle and be connected with two sections amortization subassemblies, the exit of L type pipe can be dismantled through tightly fastening the structure and be.

Through adopting above-mentioned technical scheme, through setting up L type pipe, thereby when making send a large amount of wind whistle in this solenoid valve, can make the sound wave transmit to L type intraductally, and can dismantle the amortization subassembly of connection in L type pipe through two sections and play twice stronger amortization noise reduction effect to the sound wave, thereby make the sound wave that leaves from this solenoid valve can not form great decibel, and can play better protection effect through filter screen and tight structure, thereby make the dust in the outside air can not fall into the weakening of the noise reduction effect that causes the amortization subassembly in the L type intraductal.

The utility model discloses further set up to: the noise reduction assembly comprises a net cylinder I and a sound absorption cotton pad, the net cylinder I is coaxial with the straight cylinder part of the L-shaped pipe, the sound absorption cotton pad is wound on the outer side of the net cylinder I, and the thickness of the sound absorption cotton pad is larger than the difference between the inner diameter of the L-shaped pipe and the outer diameter of the net cylinder I.

Through adopting above-mentioned technical scheme, through setting up a net section of thick bamboo one to make it can play better supporting effect to inhaling the cotton pad of sound, and make and to form one section cavity section in the L type pipe, avoid appearing the condition that L type pipe blockked up, and inhale the cotton pad of sound and can fill in comparatively on the spot in the clearance between L type pipe and net section of thick bamboo one when being located L type intraductal, also can be to a net section of thick bamboo better supporting effect together.

The utility model discloses further set up to: and the inner surface and the outer surface of the L-shaped pipe are coated with metal coatings.

By adopting the technical scheme, the metal coating can be a zinc layer or an aluminum layer or other coatings, so that the L-shaped pipe can be well protected, and the L-shaped pipe is prevented from being corroded when being contacted with air for a long time.

The utility model discloses further set up to: the fastening structure comprises a strip wound outside the filter screen, a tightening assembly is fixedly connected to one end of the strip, the movable end of the strip penetrates through the tightening assembly, and the tightening assembly is used for stretching and positioning the movable end of the strip.

Through adopting above-mentioned technical scheme, through setting up the tight structure of fastening to make it fix the one end of strip through tightening up the subassembly, and can stretch and fix a position the expansion end of strip, thereby realize tightening up of strip, make the strip effectively centre gripping to the filter screen.

The utility model discloses further set up to: tighten up the subassembly and include the link, rotate bolt one and the clamping piece of fixed connection on the link of connection in the link, strip one end fixed connection is in the clamping piece towards link one side, the expansion end of strip passes between one end and the bolt that strip and clamping piece are fixed, just the strip is contradicted towards the screw rod part of bolt one side and bolt one, when bolt one rotates, a pair of strip of bolt provides tensile effort.

Through adopting above-mentioned technical scheme, when the subassembly that tightens need tighten up the film strip, can take place to rotate through bolt one to make the screw rod part on the bolt one when rotating, produce the component force of two directions to the film strip of contradicting with it, the component force of one of them direction is resisted through the clamping piece, and the component force in film strip length direction can be pulled the film strip.

The utility model discloses further set up to: the inlet of the L-shaped pipe is fixedly connected with a first connecting flange, and the first connecting flange is detachably connected with the valve body through a second bolt.

The utility model discloses further set up to: the valve body is internally and fixedly connected with a baffle with a hole, and the hole is used for accommodating the piston rod to penetrate through and limit the rubber valve.

The utility model discloses further set up to: the piston rod is located in the valve body, the baffle is located between the valve body and the piston rod, and the baffle is located between the valve body and the piston rod.

Through adopting above-mentioned technical scheme, through setting up a net section of thick bamboo two and inhaling the sound sponge to make both can play the effect that supports each other relatively, make and inhale sound sponge and net section of thick bamboo two and all obtain effectual location, and inhale the sound sponge and can carry out effectual weakening to the sound wave, thereby strengthen the noise cancelling effect of this solenoid valve.

The utility model discloses further set up to: the top surface and the bottom surface of the valve body are respectively provided with a plurality of first through holes and a plurality of second through holes, and the first through holes and the second through holes are communicated with the part containing the rubber valve in the valve body.

Through adopting above-mentioned technical scheme, through setting up a plurality of through-holes one and a plurality of through-hole two to make through-hole one and through-hole two still outside air form the perforation sound absorbing structure, thereby cause violent loss to the sound wave when the sound wave passes through-hole one and through-hole two.

The utility model discloses further set up to: connecting pipe one end fixedly connected with flange two, flange two can dismantle with the valve body through the bolt three and be connected, just fixedly connected with round is used for imbedding the thimble in the valve body on the flange two.

To sum up, the utility model discloses following beneficial effect has:

through setting up L type pipe, thereby when making send a large amount of wind whistle in this solenoid valve, can make the sound wave transmit to L type intraductal, and can dismantle the amortization subassembly of connection in L type pipe through two sections and play twice stronger amortization noise reduction effect to the sound wave, thereby make the sound wave that leaves from this solenoid valve can not form great decibel, and can play better protection effect through filter screen and tight structure, thereby make the dust in the outside air can not fall into the weakening of the noise reduction effect that causes the amortization subassembly in the L type intraductal.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a first schematic structural view of the present invention with the L-shaped tube removed;

FIG. 4 is a second schematic structural view of the present invention with the L-shaped tube removed;

FIG. 5 is a schematic structural view of a middle connecting pipe and a second connecting flange of the present invention;

FIG. 6 is a schematic structural view of an L-shaped pipe of the present invention;

FIG. 7 is a cross-sectional view of an L-shaped pipe of the present invention;

fig. 8 is a schematic structural view of the fastening structure of the present invention.

In the figure: 1. a valve body; 2. a cylinder; 3. a piston rod; 4. a connecting pipe; 5. a third bolt; 6. a first through hole; 7. a second through hole; 8. a first connecting flange; 9. a second bolt; 10. an L-shaped pipe; 11. a filter screen; 12. fastening the structure; 13. a baffle plate; 14. a rubber valve; 15. a spring; 16. sound-absorbing sponge; 17. a through groove; 18. a second net drum; 19. a second connecting flange; 20. embedding a ring; 21. a first net drum; 22. a sound absorbing cotton pad; 23. slicing; 24. hollowing out the grooves; 25. a tightening assembly; 26. a connecting frame; 27. a clip; 28. and a first bolt.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Example (b):

as shown in fig. 1 and 2, a noise reduction electromagnetic valve comprises a valve body 1, a cylinder 2 fixedly connected to one end of the valve body 1, a piston rod 3 in transmission connection with the cylinder 2 and located in the valve body 1, a rubber valve 14 fixedly connected to the piston rod 3, and a connecting pipe 4 rotatably connected to the piston rod 3 and fixedly connected to the valve body 1, wherein the connecting pipe 4 is used for communicating with a screen printing machine, the rubber valve 14 is formed by integrally molding two truncated cone-shaped large end faces, the cylinder 2 is fixedly connected to the valve body 1, for example, by an inner hexagon bolt, the connecting pipe 4 is tubular, an inner ring of the connecting pipe 4 is integrally molded with a connecting plate, a hole for accommodating the piston rod 3 and a plurality of through holes are formed in the connecting plate, the rubber valve 14 is used for plugging the through holes, as shown in fig. 4, one end of the connecting pipe 4 is fixedly connected to a second connecting flange 19, and a ring of embedded rings 20 which are embedded into the valve body 1 are fixedly connected to the second connecting flange 19.

As shown in fig. 3 and 4, a baffle 13 with a hole is integrally formed in the valve body 1, the hole is used for accommodating the piston rod 3 to pass through and limiting the rubber valve 14, and a spring 15 which is sleeved outside the piston rod 3 and always applies acting force to the rubber valve 14 and the connecting pipe 4 is embedded between the rubber valve 14 and the connecting pipe 4.

As shown in fig. 3 and 4, a second stainless steel mesh tube 18 sleeved outside the piston rod 3 and located between the baffle 13 and the cylinder 2 is detachably connected in the valve body 1, the second mesh tube 18 is wound into a tube shape, for example, a stainless steel mesh sheet, and a sound-absorbing sponge 16 is filled between the second mesh tube 18 and the inner wall of the valve body 1.

As shown in fig. 3 and 4, the top surface and the bottom surface of the valve body 1 are respectively provided with a plurality of first through holes 6 and a plurality of second through holes 7, and the first through holes 6 and the second through holes 7 are both communicated with the part of the valve body 1 for accommodating the rubber valve 14.

As shown in fig. 3 and 4, a through groove 17 is formed in the side wall of the valve body 1, an L-shaped pipe 10 communicated with the through groove 17 is detachably connected to the side wall of the valve body 1, a metal coating is coated on the inner surface and the outer surface of the L-shaped pipe 10, as shown in fig. 1 and 6, a first connecting flange 8 is fixedly connected to the inlet of the L-shaped pipe 10, and the first connecting flange 8 is detachably connected with the valve body 1 through a second bolt 9.

As shown in fig. 7, two sections of silencing assemblies are detachably connected in the L-shaped pipe 10, each silencing assembly includes a net cylinder 21 coaxially arranged with the straight cylinder portion of the L-shaped pipe 10 and a sound-absorbing cotton pad 22 wound on the outer side of the net cylinder 21, and the thickness of the sound-absorbing cotton pad 22 is larger than the difference between the inner diameter of the L-shaped pipe 10 and the outer diameter of the net cylinder 21.

As shown in fig. 6, the outlet of the L-shaped pipe 10 is detachably connected with the filter screen 11 through the fastening structure 12, the fastening structure 12 includes a strip 23 wound outside the filter screen 11, one end of the strip 23 is fixedly connected with a tightening assembly 25, the movable end of the strip 23 passes through the tightening assembly 25, as shown in fig. 8, the tightening assembly 25 is used for stretching and positioning the movable end of the strip 23, the tightening assembly 25 includes a connecting frame 26, a first bolt 28 rotatably connected in the connecting frame 26, and a clamping piece 27 fixedly connected on the connecting frame 26, one end of the strip 23 is fixedly connected to one side of the clamping piece 27 facing the connecting frame 26, the movable end of the strip 23 passes between the fixed end of the strip 23 and the clamping piece 27 and the first bolt 28, and the side of the strip 23 facing the first bolt 28 is abutted against the screw part of the first bolt 28, when the first bolt 28 rotates, the first bolt 28 provides stretching force to the strip 23, the strip 23 is, for example, a stainless steel strip and is in a strip shape, and a plurality of hollow grooves 24 are formed in the strip 23 and distributed in an array along the length direction of the strip.

When this solenoid valve is connected on screen printing machine, the last fan work of screen printing machine is leading-in with the air, the air can pass valve body 1 in this solenoid valve, and cylinder 2 drives rubber valve 14 through piston rod 3 and takes place the displacement, thereby make the perforation no longer sheltered from, and then make the air can normally circulate, go in entering the fan through connecting pipe 4, and when this solenoid valve need be closed, only need close cylinder 2, cylinder 2 no longer applys the effort to piston rod 3, spring 15 releases elastic potential energy, thereby promote rubber valve 14, make rubber valve 14 drive piston rod 3 move towards cylinder 2, rubber valve 14 seals the perforation from this, make need not to close the fan and also stop work.

Can produce certain whistle sound when the air enters into the valve body 1 in, and under the support of net section of thick bamboo two 18, the flexible of piston rod 3 can not receive the influence, and inhale sound sponge 16 and can effectively fix a position in valve body 1, play effectual weakening effect to the sound wave through inhaling sound sponge 16, the sound wave can make a round trip to reflect and reach and fall the noise when inhaling in sound sponge 16, inhale the effect of sound, inhale sound sponge 16 simultaneously and can play better adaptation effect through net section of thick bamboo two 18 when taking place deformation, net section of thick bamboo two 18 can take place certain degree elastic deformation and then recover the original state, and can take place the transmission when the sound wave arrives on the inner wall of valve body 1 and enter into again and inhale sound sponge 16 and carry out further reflection and weakening, so far make the sound wave that pierces through valve body 1 can obtain the weakening of great degree so that the sound wave keeps in lower decibel state.

After the sound wave passes through the holes on the baffle 13, the sound wave can be reflected on the inner wall of the valve body 1, so that standing waves are generated, the frequency of the standing waves is the same as that of the incident waves, the direction of the standing waves is opposite to that of the incident waves, the standing waves can be seriously damaged when the standing waves and the incident waves are oppositely flushed, the standing waves can weaken the original sound waves, the rest of the sound waves leave the valve body 1 through the first through hole 6 and the second through hole 7, the first through hole 6 and the second through hole 7 of the valve body 1 and the outside air behind the first through hole 6 and the second through hole 7 form a row of cavity resonators, when the frequency of the incident sound waves is the same as the natural frequency of the system, the air channel at the hole neck vibrates due to resonance to the generation of friction, sound energy is lost, and the noise is further weakened.

Simultaneously, through-hole 6 and through-hole two 7 can carry out the air introduction together to make the air when entering into valve body 1 through-hole 6 and through-hole two 7, can carry out the turbulent flow to the air in the valve body 1, make then the air be difficult for taking place the wind whistle sound in valve body 1, and enter into and can play effectual cooling effect through the air that through-hole 6 and through-hole two 7 entered into in the valve body 1.

Secondly, the sound wave also can transmit and enter into L type pipe 10 through logical groove 17 in, under the supporting action of net section of thick bamboo 21, inhale sound cotton pad 22 can obtain effectively fixing a position in L type pipe 10, and inhale sound cotton pad 22 owing to constitute through numerous fibre, the sound wave can pass through the reflection of numerous fibre when inhaling sound cotton pad 22, superpose each other, the collision, sound wave energy conversion is heat energy, thereby lead to the sound wave intensity effectively to reduce, and can make the sound wave take place reflection and refraction at the corner of L type pipe 10 inner wall, thereby make the sound wave can produce the standing wave in L type pipe 10, disturb and weaken incident sound wave through the standing wave, in addition the sound wave can be in L type pipe 10 again through the noise reduction with this inhale sound cotton pad 22, thereby make the sound wave decibel that leaves this L type pipe 10 lower, can not cause the interference to people.

Meanwhile, the filter screen 11 can protect the sound absorption cotton pad 22 in the L-shaped pipe 10, prevent dust in the outside air from falling into the L-shaped pipe 10, and when the filter screen 11 is blocked, people can rotate the bolt-28 by a screwdriver to enable the screw part on the bolt-28 to move against the strips 23, since the movable end of the strip 23 is caught by the jaw 27, and the screw thread of the screw portion of the first bolt 28 abuts against the outer peripheral wall of the jaw 27, so that when the thread is rotated a force is generated which acts on the strip 23 upwards or downwards, and a force along the length of the strip 23, which in turn allows the strip 23 to relax, so that it no longer grips the filter screen 11, after people replace the filter screen 11, people only need to rotate the first bolt 28 reversely through the screwdriver, and the threads can effectively stretch and position the movable end of the strip 23.

When this solenoid valve broke down the problem simultaneously, people only need dismantle bolt two 9 and bolt three 5 through the bottle opener, can make connecting flange one 8 and connecting flange two 19 can drive L type pipe 10 and connecting pipe 4 and break away from with valve body 1 and change, and take off and can make logical groove 17 and other holes expose after connecting flange one 8 and connecting flange two 19, make things convenient for people to change one or more in sound absorption sponge 16 or net section of thick bamboo two 18 or piston rod 3 or rubber valve 14 or the spring 15, also can change net section of thick bamboo one 21 in the L type pipe 10 or sound absorption cotton pad 22, thereby make this solenoid valve have better noise cancelling effect and longer life all the time.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a amortization solenoid valve, includes valve body (1), fixed connection cylinder (2) of valve body (1) one end, is connected and is located piston rod (3) in valve body (1) with cylinder (2) transmission, rubber valve (14) of fixed connection on piston rod (3) and rotate with piston rod (3) and be connected and with valve body (1) fixed connection's connecting pipe (4), its characterized in that: the improved silencer is characterized in that a through groove (17) is formed in the side wall of the valve body (1), an L-shaped pipe (10) communicated with the through groove (17) is detachably connected to the side wall of the valve body (1), two sections of silencing assemblies are detachably connected to the inside of the L-shaped pipe (10), and a filter screen (11) is detachably connected to an outlet of the L-shaped pipe (10) through a tightly-fastening structure (12).

2. A noise reducing solenoid valve according to claim 1, wherein: the noise reduction assembly comprises a net cylinder I (21) and a sound absorption cotton pad (22), wherein the net cylinder I (21) is coaxial with the straight cylinder part of the L-shaped pipe (10), the sound absorption cotton pad (22) is wound on the outer side of the net cylinder I (21), and the thickness of the sound absorption cotton pad (22) is larger than the difference between the inner diameter of the L-shaped pipe (10) and the outer diameter of the net cylinder I (21).

3. A silent electromagnetic valve according to claim 1 or 2, characterized in that: the inner surface and the outer surface of the L-shaped pipe (10) are coated with metal coatings.

4. A noise reducing solenoid valve according to claim 1, wherein: tightly fastening structure (12) including twine at blade (23) in filter screen (11) outside, blade (23) one end fixedly connected with tightens up subassembly (25), blade (23) activity end passes and tightens up subassembly (25), it is used for stretching and the location to the activity end of blade (23) to tighten up subassembly (25).

5. A silent electromagnetic valve as claimed in claim 4, wherein: tighten up subassembly (25) and include link (26), rotate bolt (28) and clamping piece (27) of fixed connection on link (26) of connection in link (26), strip (23) one end fixed connection is towards link (26) one side at clamping piece (27), the expansion end of strip (23) passes between strip (23) and the fixed one end of clamping piece (27) and bolt (28), just strip (23) are contradicted towards the screw rod part of bolt (28) one side and bolt (28), when bolt (28) rotate, bolt (28) provide tensile effort to strip (23).

6. A noise reducing solenoid valve according to claim 1, wherein: the inlet of the L-shaped pipe (10) is fixedly connected with a first connecting flange (8), and the first connecting flange (8) is detachably connected with the valve body (1) through a second bolt (9).

7. A noise reducing solenoid valve according to claim 1, wherein: the valve is characterized in that a baffle (13) with a hole is fixedly connected in the valve body (1), and the hole is used for accommodating the piston rod (3) to penetrate through and limiting the rubber valve (14).

8. A noise reducing solenoid valve according to claim 7, wherein: can dismantle in valve body (1) and be connected with the cover and locate piston rod (3) outside and be located net section of thick bamboo two (18) between baffle (13) and cylinder (2), it has sound absorbing sponge (16) to fill between net section of thick bamboo two (18) and valve body (1) inner wall.

9. A noise reducing solenoid valve according to claim 8, wherein: a plurality of through holes I (6) and a plurality of through holes II (7) are respectively formed in the top surface and the bottom surface of the valve body (1), and the through holes I (6) and the through holes II (7) are communicated with the part, containing the rubber valve (14), in the valve body (1).

10. A noise reducing solenoid valve according to claim 1, wherein: connecting pipe (4) one end fixedly connected with flange two (19), flange two (19) can be dismantled with valve body (1) through three (5) bolts and be connected, just fixedly connected with round is used for imbedding thimble (20) in valve body (1) on flange two (19).