CN218598968U - Adjustable silencing pressure relief valve and silencing device - Google Patents
Adjustable silencing pressure relief valve and silencing device Download PDFInfo
- Publication number
- CN218598968U CN218598968U CN202222626463.1U CN202222626463U CN218598968U CN 218598968 U CN218598968 U CN 218598968U CN 202222626463 U CN202222626463 U CN 202222626463U CN 218598968 U CN218598968 U CN 218598968U
- Authority
- CN
- China
- Prior art keywords
- pressure
- silencing
- relief valve
- shell
- pressure regulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to a technical field of relief valve, more specifically relates to an adjustable amortization relief valve and silencing device. The silencing and pressure-releasing valve is arranged on the outer side of the main gas path of the electromagnetic valve and comprises an accommodating cavity, an elastic cushion, a pressure regulating assembly, a shell and at least one silencing sheet; an opening is arranged above the accommodating cavity, and a communication port communicated with a main air path of the electromagnetic valve is arranged at the bottom of the accommodating cavity; the shell is fixedly arranged at the opening; the pressure regulating assembly is arranged in the accommodating cavity, the top of the pressure regulating assembly is abutted against the shell, the elastic cushion and the communication port are pressed and sealed at the bottom of the pressure regulating assembly, and the elastic cushion is used for regulating the pressure relief pre-tightening degree between the elastic cushion and the communication port through the pressure regulating assembly; the holding cavity bottom still is provided with a plurality of disappointing holes, and the holding cavity is provided with the standing groove in disappointing hole top, is provided with the amortization piece in the standing groove, and the amortization piece covers in disappointing hole top. The utility model discloses a degree of preload between cushion and the connector replaces the elastic action of spring to the abnormal sound that produces when eliminating the pressure release.
Description
Technical Field
The utility model relates to a technical field of relief valve, more specifically relates to an adjustable amortization relief valve and silencing device.
Background
In order to realize pressure stabilization and overpressure protection of a gas path of a pneumatic system, particularly a pneumatic comfort system, a pressure relief valve is required to be connected in series with a main gas path, and the pressure relief valve is generally arranged in an air pump, a pipeline or a valve body. When high-pressure gas in the pressure relief valve flows, the high-pressure gas can generate noise by friction with air or a pipe wall, and more importantly, the airflow pulsation can transmit and diffuse air pump noise and valve body action noise in a pneumatic system, so that a silencer module is often required to be added in a main air path.
In the prior art, the pressure relief valve realizes constant pressure through specific spring compression amount, but the flow rate of the exhaust air flow in the pressure relief valve is dynamically changed. When the spring continuously changes in density and elasticity, the pressure release valve has the phenomenon of accidental abnormal sound, and the adjustment of the constant pressure precision can not be realized according to the compression amount of the spring; moreover, when the air current in the main air path flows, the air current is rubbed with the air or the tube wall to generate noise easily.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the background art relief valve adopt the spring structure to have the phenomenon of sporadic different sound, can not realize the regulation of level pressure precision and the problem that produces the noise easily with air or pipe wall friction when the air current in the main gas circuit flows according to the decrement of spring, provide an adjustable amortization relief valve and silencing device.
In order to solve the technical problem, the technical scheme of the utility model as follows:
in a first aspect, the utility model provides an adjustable silencing relief valve, which is arranged outside a main gas circuit of a solenoid valve and comprises an accommodating cavity, an elastic cushion, a pressure regulating assembly, a shell and at least one silencing sheet;
an opening is arranged above the accommodating cavity, and a communication port communicated with a main air path of the electromagnetic valve is arranged at the bottom of the accommodating cavity; the shell is fixedly arranged at the opening; the pressure regulating assembly is arranged in the accommodating cavity, the top of the pressure regulating assembly is abutted against the shell, the elastic cushion and the communication port are pressed and sealed at the bottom of the pressure regulating assembly, and the elastic cushion is used for regulating the pressure relief pre-tightening degree between the elastic cushion and the communication port through the pressure regulating assembly; the bottom of the accommodating cavity is also provided with a plurality of air release holes, the accommodating cavity is provided with a placing groove above the air release holes, and a silencing sheet is arranged in the placing groove and covers the air release holes.
Preferably, the pressure regulating assembly comprises a pressing block and a pressure regulating screw, protruding blocks are arranged on two sides of the inner wall of the accommodating cavity above the placing groove, and the side edge of the pressing block and the protruding blocks press and fix the side edge of the elastic cushion; the pressure regulating screw is in threaded connection with the center of the vertical shaft of the pressing block, and the elastic pad is pressed and sealed with the communicating opening at the bottom of the pressure regulating screw.
Preferably, the shell sets up the round hole in the top of pressure regulating screw, the upper portion of pressure regulating screw sets up twists and moves the groove, the round hole with it moves the trench position relatively to twist.
Preferably, the screwing groove is of an inner hexagonal groove structure.
Preferably, the briquetting is handstand cask structure, the axle center department of briquetting is provided with the connecting piece, the connecting piece sets up the internal thread, the connecting piece with pressure regulating screw threaded connection.
Preferably, the elastic pad is of a disc structure, an elastic arm is arranged in the center of the elastic pad, and the bottom of the pressure regulating screw abuts against the upper part of the elastic arm; the bottom of cushion sets up the recess, the intercommunication mouth extends to be set up in the recess.
Preferably, the sides of the disc structure extend upwardly; an extension part is arranged at the bottom of the side edge of the pressing block, and the extension part and the bump press and fix the elastic pad; the extension part is buckled with the side edge of the elastic cushion.
In a second aspect, the present invention also provides a silencing apparatus, including:
an air inlet nozzle;
an air outlet nozzle;
an anechoic chamber; and
an adjustable muffler pressure relief valve as described in the first aspect;
the silencing cavity comprises a first shell and a second shell, the first shell is integrally connected with the air inlet nozzle in a conduction mode, the second shell is integrally connected with the air outlet nozzle in a conduction mode, and the first shell is connected with the second shell through a buckle in a clamping mode; the silencing pressure relief valve is integrally communicated with the air outlet nozzle side.
Preferably, the silencing pressure relief valve is arranged on the side of the silencing cavity, the first shell extends to cover an opening above the silencing pressure relief valve, and the pressure regulating assembly is abutted to the first shell.
Preferably, a sealing ring is arranged at the joint of the first shell and the second shell.
The beneficial effects are that:
1. the utility model discloses a degree of preload between cushion and the connector replaces the elastic action of spring to the abnormal sound that produces when eliminating the pressure release. The elastic cushion can be adjusted to generate elastic shape turning pretightening force on the connecting port only by screwing the screw to adjust the stroke of the screw, so that the pressure value required by air leakage can be adjusted.
2. The utility model discloses an adopt amortization piece and amortization chamber to be used for weakening the noise that the air current produced when passing through. When the air flow of the main air path enters the silencing cavity with the silencing function, the phenomena of reflection and interference of sound waves are caused by the expansion and contraction of the cross section of the silencing cavity, so that the silencing effect is achieved; when the decompressed air is discharged to the outside atmosphere, the noise can be effectively eliminated through the silencing sheet. The mode that relief valve and anechoic chamber combine can save structure space, makes the overall arrangement more nimble.
Drawings
Fig. 1 is the embodiment of the utility model provides an adjustable amortization relief valve's block diagram.
Fig. 2 is an explosion diagram of adjustable amortization relief valve in the embodiment of the present invention.
Fig. 3 is a sectional view of the adjustable noise reduction pressure relief valve in the embodiment of the present invention.
Fig. 4 is a perspective view of a silencer according to an embodiment of the present invention.
Fig. 5 is an exploded view of a silencer according to an embodiment of the present invention.
Fig. 6 is a front sectional view of a silencer according to an embodiment of the present invention.
Wherein: the pressure regulating device comprises a silencing and pressure relieving valve 1, a connecting port 11, an accommodating cavity 111, a pressing block 12, a connecting piece 121, a pressure regulating screw 13, a twisting groove 131, an elastic pad 14, an elastic arm 141, a bump 15, a silencing sheet 16, a placing groove 161 and an air leakage hole 17;
an air inlet nozzle 2; the silencing cavity 3, the first shell 31, the second shell 32, the sealing ring 311 and the round hole 312; and an air outlet nozzle 4.
Detailed Description
In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are some, but not all embodiments of the invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
As shown in fig. 1 and fig. 2, the present embodiment provides an adjustable silencing and pressure-relief valve 1, where the silencing and pressure-relief valve 1 may be disposed outside a main air path of a solenoid valve, and the silencing and pressure-relief valve 1 includes an accommodating cavity 111, an elastic pad 14, a pressure-regulating assembly, a housing, and at least one silencing sheet 16.
As shown in fig. 3, an opening is disposed above the accommodating cavity 111, a communication port communicated with a main air path of the solenoid valve is disposed at the bottom of the accommodating cavity 111, the accommodating cavity 111 is mainly used for placing the elastic pad 14, the pressure regulating assembly and the noise damping sheet 16, and the accommodating cavity 111 is provided with an opening for better taking and placing the elastic pad 14 and the pressure regulating assembly. The main function of the connection port 11 is to conduct air pressure.
The shell is fixedly arranged at the opening, the pressure regulating assembly is arranged in the accommodating cavity 111, the top of the pressure regulating assembly is abutted to the shell, and the bottom of the pressure regulating assembly is used for pressing and sealing the elastic pad 14 and the communicating port. The shell is mainly used for fixedly limiting the movement of the pressure regulating assembly, the pressure regulating assembly is limited in the accommodating cavity 111, and the pressure regulating assembly is mainly used for adjusting the pressure relief preload between the elastic pad 14 and the communication port. The gas in the main gas circuit of solenoid valve lets in behind the connector 11 and is kept off by cushion 14, forms atmospheric pressure, and when atmospheric pressure was greater than the pressure release pretension between cushion 14 and the intercommunication mouth, perhaps when just reaching pressure release pretension, atmospheric pressure can upwards form thrust and overcome cushion 14's pretightning force gradually, and the relief valve will open.
The bottom of the accommodating cavity 111 may also be provided with two air release holes 17, and the accommodating cavity 111 is provided with a placing groove 161 above the air release holes 17. The sound-deadening sheet 16 is arranged in the placement groove 161, and the sound-deadening sheet 16 covers the air release hole 17. The air release hole 17 is mainly used for communicating the accommodating cavity 111 with the outside to discharge airflow out of the outside and reduce pressure in the accommodating cavity 111, the placing groove 161 is mainly used for placing the silencing sheet 16, the silencing sheet 16 is mainly made of a sintered product of high-density PE powder, and the air release hole is mainly used for buffering air and eliminating noise generated by suddenly rushed air.
In this embodiment, the preload between the elastic pad and the connection port is used to replace the elastic action of the spring, so that abnormal noise generated during pressure relief can be eliminated. The accommodating cavity 111 is provided with a placing opening at the outer side of the opposite placing groove 161, so that the silencing sheet can be conveniently placed into the placing groove from the placing opening.
In this embodiment, the thrust of the air flow against the elastic pad 14 is the product of the pressure and the acting area.
Through the connection of above-mentioned structure, the amortization relief valve 1 of this embodiment can have two kinds of states, sealed state and pressure release state promptly.
And (3) sealing state: the gas in the main gas circuit of solenoid valve lets in behind the connector 11 and is kept off by cushion 14, forms atmospheric pressure, and when atmospheric pressure was less than the pressure release pretension degree between cushion 14 and the intercommunication mouth, there was not the gap between cushion 14 and the connector 11, and amortization relief valve 1 then can not the pressure release exhaust, promptly for encapsulated situation.
Pressure relief state: gas in the main gas circuit of solenoid valve lets in behind the connector 11 and is kept off by cushion 14, forms atmospheric pressure, when atmospheric pressure is greater than the pressure release pretension degree between cushion 14 and the intercommunication mouth, perhaps when just reaching pressure release pretension degree, atmospheric pressure can upwards form thrust and overcome cushion 14's pretightning force gradually, has carminative gap between cushion 14 and the connector 11, and amortization relief valve 1 then the pressure release is exhausted, is the pressure release state promptly.
The working steps of this embodiment may be: first, how much preload is needed is calculated, and the preload of the elastic pad 14 is adjusted by the pressure adjusting assembly. When the electromagnetic valve is in normal ventilation operation, namely, the air pressure is smaller than the pressure relief pre-tightening degree between the elastic cushion 14 and the communication port, no gap exists between the elastic cushion 14 and the connection port 11, and the silencing and pressure-relief valve 1 cannot relieve pressure and exhaust air; when the air pressure is greater than the pressure relief preload between the elastic cushion 14 and the communication port, or just reaches the pressure relief preload, the air pressure can upwards form thrust to gradually overcome the pre-tightening force of the elastic cushion 14, an exhaust gap is formed between the elastic cushion 14 and the connecting port 11, the silencing and pressure-relief valve 1 relieves pressure and exhausts air, and the air flow is exhausted to the atmosphere through the air-release hole 17, so that the pressure limiting effect is achieved.
Example two
In the above embodiment, the difference is that:
referring to fig. 4, the pressure regulating assembly of the present embodiment includes a pressing block 12 and a pressure regulating screw 13, and two sides of the inner wall of the accommodating cavity 111 are provided with a protrusion 15 above the placing groove 161. The main function of the pressing block 12 is to fix the position of the pressure regulating screw or the elastic pad 14, the main function of the pressure regulating screw 13 is to adjust the pre-tightening degree of the elastic pad 14 on the connecting port 11, and the main function of the bump 15 is to clamp and fix the elastic pad 14 together with the pressing block 12.
The pressing block 12 is of an inverted barrel structure, a connecting piece 121 is arranged at the center of the shaft of the pressing block 12, the connecting piece 121 is provided with internal threads, and the connecting piece 121 is in threaded connection with the pressure regulating screw 13. The side edge of the pressing block 12 and the bump 15 press and fix the side edge of the elastic pad 14. The pressure regulating screw 13 is connected with the center of the vertical shaft of the pressing block 12 in a threaded manner, and the elastic pad 14 and the communication opening are pressed and sealed at the bottom of the pressure regulating screw 13.
In this embodiment, the driving slot 131 may have an inner hexagonal slot structure, an inner straight slot structure in some embodiments, or any inner equilateral polygonal slot structure. The main function of the structure of the straight groove or the multi-angle groove is to conveniently match the use of a common tool.
In this embodiment, the housing is provided with a circular hole 312 above the pressure adjusting screw 13, the screwing groove 131 is provided on the upper portion of the pressure adjusting screw 13, and the circular hole 312 is opposed to the screwing groove 131. The main function of the circular hole 312 is to facilitate the tool to directly screw the screw groove 131 of the adjustment pressure adjusting screw 13 over the housing.
The elastic pad 14 of this embodiment is a disc structure, and the center of the elastic pad 14 is provided with the elastic arm 141, and the bottom of the pressure regulating screw 13 is pressed against the upper portion of the elastic arm 141, and the bottom of the elastic pad 14 is provided with a groove, and the communication opening extends and is provided in the groove. The main function of the elastic arm 141 is to better abut against the pressure adjusting screw 13. The main function of the groove is to better fit the connection port 11 to the bottom of the resilient arm and to prevent the resilient pad 14 from slipping.
In this embodiment, the side of the disk structure of the elastic pad 14 extends upward, and the bottom of the side of the pressing block 12 is provided with an extension. The extension and the projection 15 press the elastic pad 14 to be fixed and are buckled with the side edge of the disc structure of the elastic pad 14. The engagement of the extensions with the sides of the disc structure of the pad 14 serves to better secure the pad 14 against slipping off of the pad 14.
In this embodiment, the pitch P =0.7mm of the pressure adjusting screw 13, and when the screw is rotated by 5 °, a stroke of about 0.01mm is realized, and the pressure adjusting accuracy is very high.
In this embodiment, the inner wall of the placement groove 161 for placing the noise damping sheet 16 may be provided with a limiting portion which may be a triangular protrusion structure, mainly for limiting the sliding of the noise damping sheet 16.
Through the connection of the above structure, the working steps of the previous embodiment can be optimized as follows: first, how much preload is required is calculated, and the preload of the elastic pad 14 is adjusted by screwing the pressure adjusting screw 13. After the pressure regulation is finished, the pressure relief valve can be ensured to be stable in pre-tightening degree through self-locking force of threads or local gluing fixation. When the electromagnetic valve is in normal ventilation operation, namely the air pressure is smaller than the pressure relief pre-tightening degree between the elastic cushion 14 and the communication port, no gap exists between the elastic cushion 14 and the connecting port 11, and the silencing and pressure-relief valve 1 cannot relieve pressure and exhaust air; when atmospheric pressure is greater than the pressure release pretension between cushion 14 and the intercommunication mouth, perhaps just when reaching the pressure release pretension, atmospheric pressure can upwards form thrust and overcome the pretightning force of cushion 14 gradually, has carminative gap between cushion 14 and the connector 11, and amortization relief valve 1 then releases the pressure and exhausts, and the air current is got rid of to the atmosphere through disappointing hole 17.
EXAMPLE III
As shown in fig. 4, the present embodiment provides a silencing apparatus including:
an air inlet nozzle 2;
an air outlet nozzle 4;
an anechoic chamber 3; and the adjustable silencing and pressure-relief valve 1 as described in the first or second embodiment.
Referring to fig. 5 and 6, the muffling chamber 3 of the present embodiment includes a first shell 31 and a second shell 32, the first shell 31 is integrally connected to the inlet nozzle 2 in a conduction manner, the second shell 32 is integrally connected to the outlet nozzle 4 in a conduction manner, and the first shell 31 and the second shell 32 are connected by a snap-fit arrangement; the silencing and pressure-relief valve 1 is integrally communicated and arranged on the side edge of the air outlet nozzle 4. The silencing pressure relief valve 1 is arranged on the side of the silencing cavity 3, the first shell 31 extends to cover the opening above the silencing pressure relief valve 1, and the pressure regulating assembly is abutted to the first shell 31. The silencing cavity 3 has a silencing function, and sound waves are reflected and interfered by expansion and contraction of the cross section of a pipeline of the silencing device, namely structural connection among the air inlet nozzle 2, the air outlet nozzle 4 and the silencing cavity 3, so that a silencing effect is achieved, and flowing noise of air flow is reduced.
In the present embodiment, a sealing ring 311 is disposed at the connection between the first housing 31 and the second housing 32. The main function of the sealing ring 311 is to prevent air leakage from the pipe.
Through the structural connection, the working steps of the silencer of the embodiment may be as follows: the required pre-tightening degree is calculated, and the pre-tightening degree of the elastic cushion 14 is adjusted by screwing the pressure adjusting screw 13. After the pressure regulation is finished, the pressure relief valve can be ensured to be stable in pre-tightening degree through self-locking force of threads or local gluing fixation. Then, the air is ventilated through the air inlet, the silencing cavity 3 and the air outlet in sequence, and the air flow can be preliminarily silenced through the silencing cavity 3. In the following work, the noise reduction and pressure release valve 1 detects the air pressure condition in the device, and when the device works in normal ventilation, namely the air pressure is smaller than the pressure reduction pre-tightening degree between the elastic cushion 14 and the communication port, no gap exists between the elastic cushion 14 and the connecting port 11, and the noise reduction and pressure release valve 1 cannot release pressure and exhaust air; when atmospheric pressure is greater than the pressure release pretension between cushion 14 and the intercommunication mouth, perhaps just when reaching the pressure release pretension, atmospheric pressure can upwards form thrust and overcome the pretightning force of cushion 14 gradually, has carminative gap between cushion 14 and the connector 11, and amortization relief valve 1 then releases the pressure and exhausts, and the air current is got rid of to the atmosphere through disappointing hole 17.
The working mode of the silencing and pressure-relief valve 1 is not simply on/off two positions, but is in dynamic balance of on/off instant conversion or opening amount change, and a stable state can not be formed until the gas circuit pressure reaches a preset threshold value, namely, the silencing and pressure-relief valve 1 is in a completely opened state. The mode that amortization relief valve 1 and anechoic chamber 3 combine can save structure space, makes the overall arrangement more nimble.
While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and broad scope of the appended claims. The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An adjustable silencing and pressure-relief valve is characterized in that the silencing and pressure-relief valve is arranged on the outer side of a main gas path of a solenoid valve and comprises an accommodating cavity, an elastic cushion, a pressure regulating assembly, a shell and at least one silencing sheet;
an opening is arranged above the accommodating cavity, and a communication port communicated with a main air path of the electromagnetic valve is arranged at the bottom of the accommodating cavity; the shell is fixedly arranged at the opening; the pressure regulating assembly is arranged in the accommodating cavity, the top of the pressure regulating assembly is abutted against the shell, the elastic cushion and the communication port are pressed and sealed at the bottom of the pressure regulating assembly, and the elastic cushion adjusts the pressure relief pre-tightening degree between the elastic cushion and the communication port through the pressure regulating assembly; the bottom of the accommodating cavity is also provided with a plurality of air release holes, a placing groove is arranged above the air release holes, and a silencing sheet is arranged in the placing groove and covers the air release holes.
2. The adjustable noise reduction and pressure relief valve according to claim 1, wherein the pressure regulating assembly comprises a pressing block and a pressure regulating screw, protruding blocks are arranged on two sides of the inner wall of the accommodating cavity above the placing groove, and the side edge of the pressing block and the protruding blocks press and fix the side edge of the elastic cushion; the pressure regulating screw is in threaded connection with the center of the vertical shaft of the pressing block, and the bottom of the pressure regulating screw is used for pressing and sealing the elastic pad and the communication opening.
3. The adjustable noise-reduction pressure-relief valve according to claim 2, wherein a circular hole is formed in the housing above the pressure-regulating screw, a screwing groove is formed in the upper portion of the pressure-regulating screw, and the circular hole is opposite to the screwing groove.
4. The adjustable noise-reducing and pressure-relieving valve of claim 3, wherein the screwing groove is a hexagonal socket structure.
5. The adjustable noise reduction and pressure relief valve according to claim 2, wherein the pressure block is of an inverted barrel structure, a connecting piece is arranged at the center of the shaft of the pressure block, the connecting piece is provided with an internal thread, and the connecting piece is in threaded connection with the pressure regulating screw.
6. The adjustable noise reduction and pressure relief valve according to claim 5, wherein the elastic pad is of a disc structure, an elastic arm is arranged in the center of the elastic pad, and the bottom of the pressure regulating screw abuts against the upper part of the elastic arm; the bottom of cushion sets up the recess, the intercommunication mouth extends to be set up in the recess.
7. The adjustable noise and pressure relief valve of claim 6 wherein the sides of the disk structure extend upwardly; an extension part is arranged at the bottom of the side edge of the pressing block, and the extension part and the bump press and fix the elastic pad; the extension part is buckled with the side edge of the elastic cushion.
8. An acoustic abatement apparatus, comprising:
an air inlet nozzle;
an air outlet nozzle;
a sound-deadening chamber; and
an adjustable noise and pressure relief valve as claimed in any one of claims 1 to 7;
the silencing cavity comprises a first shell and a second shell, the first shell is integrally connected with the air inlet nozzle in a conduction mode, the second shell is integrally connected with the air outlet nozzle in a conduction mode, and the first shell is connected with the second shell through a buckle in a clamping mode; the silencing and pressure relief valve is integrally communicated with and arranged on the side edge of the air outlet nozzle.
9. The silencing device of claim 8, wherein the silencing pressure relief valve is disposed on a side of the silencing cavity, the first housing extends to cover an opening above the silencing pressure relief valve, and the pressure regulating assembly abuts against the first housing.
10. The acoustic abatement apparatus of claim 8, wherein a seal ring is disposed at a junction of the first housing and the second housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222626463.1U CN218598968U (en) | 2022-09-30 | 2022-09-30 | Adjustable silencing pressure relief valve and silencing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222626463.1U CN218598968U (en) | 2022-09-30 | 2022-09-30 | Adjustable silencing pressure relief valve and silencing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218598968U true CN218598968U (en) | 2023-03-10 |
Family
ID=85399825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222626463.1U Active CN218598968U (en) | 2022-09-30 | 2022-09-30 | Adjustable silencing pressure relief valve and silencing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218598968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117146047A (en) * | 2023-11-01 | 2023-12-01 | 常州耐普德新能源科技有限公司 | Silencing valve equipment and working method thereof |
-
2022
- 2022-09-30 CN CN202222626463.1U patent/CN218598968U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117146047A (en) * | 2023-11-01 | 2023-12-01 | 常州耐普德新能源科技有限公司 | Silencing valve equipment and working method thereof |
| CN117146047B (en) * | 2023-11-01 | 2024-02-23 | 常州耐普德新能源科技有限公司 | Silencing valve equipment and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218598968U (en) | Adjustable silencing pressure relief valve and silencing device | |
| JP2994060B2 (en) | Pressure medium transfer device with plunger pump | |
| JP4521005B2 (en) | Pressure control device in oil pump | |
| US11913453B2 (en) | Slide valve for a twin-screw compressor | |
| CN110496503B (en) | Air dryer and air treatment unit assembly for vehicle | |
| JP2539970Y2 (en) | Pressure regulating valve | |
| CN215370162U (en) | Silencing structure for compressor | |
| CN216279597U (en) | Pressure-adjustable safety valve | |
| JP2001289167A (en) | Silencer for vacuum pump | |
| CN210354372U (en) | Buffer valve for coffee machine | |
| CN218624572U (en) | Pressure relief device and air pump | |
| WO2019128793A1 (en) | One-way valve and scroll compressor | |
| CN217301761U (en) | Pressure adjustable pressure regulating valve for eliminating spring vibration abnormal sound | |
| CN214999622U (en) | Medical pressure reducer | |
| CN216361156U (en) | Pressure limiting valve with exhaust function and capable of reducing pressure fluctuation | |
| CN212839597U (en) | Marine air relief pressure valve | |
| CN218439660U (en) | Combined load-reducing noise-eliminating device for air compressor | |
| CN209100221U (en) | Become the noise modified compressor of air conditioner of discharge capacity automobile | |
| JPH05180117A (en) | Fuel injection device | |
| CN211344142U (en) | Automatic pressure release valve and single oxygen cabin | |
| CN217502708U (en) | Emptying valve | |
| CN214741771U (en) | Exhaust joint | |
| CN217003264U (en) | Low-temperature combined pressure regulating valve | |
| CN220981593U (en) | Gas discharge device and gas water heater | |
| CN217927326U (en) | Oxygen cabin relief valve and oxygen cabin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |