CN210566349U - Shock attenuation back pressure valve - Google Patents
Shock attenuation back pressure valve Download PDFInfo
- Publication number
- CN210566349U CN210566349U CN201921704562.9U CN201921704562U CN210566349U CN 210566349 U CN210566349 U CN 210566349U CN 201921704562 U CN201921704562 U CN 201921704562U CN 210566349 U CN210566349 U CN 210566349U
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- Prior art keywords
- water outlet
- valve
- valve body
- adjusting
- back pressure
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- 230000035939 shock Effects 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 172
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 239000012528 membrane Substances 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 28
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- 238000013016 damping Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 19
- 238000007789 sealing Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a shock attenuation back pressure valve relates to the back pressure valve field, and its technical scheme main points are: including valve gap, diaphragm and the valve body that connects gradually, be provided with water inlet and delivery port on the valve body, the one end that the valve body is close to the valve gap is provided with and corresponds the water inlet guide slot and the play water guide slot that switches on with water inlet and delivery port, be provided with on the valve gap and be used for supporting the spring mechanism that tight diaphragm made the valve body close in a water guide slot, the valve body keep away from valve gap one end seted up with the mounting groove of the coaxial setting of play water guide slot and intercommunication, still be provided with the adjusting part who is used for controlling valve body play water runner size in the mounting groove. The adjusting assembly is arranged, the size of the water outlet flow channel is adjusted through the adjusting assembly, the vibration of the valve body caused by the fact that the membrane impacts the valve body through the spring mechanism is reduced, and therefore the damping effect is achieved.
Description
Technical Field
The utility model relates to a back pressure valve field, more specifically says, it relates to a shock attenuation back pressure valve.
Background
Backpressure valves may be used to control the flow of various types of fluids.
Chinese utility model patent for CN202768970U discloses a back pressure valve, its valve gap, diaphragm and the valve body that includes to connect gradually still includes spring mechanism and adjustment mechanism, valve gap and valve body all are equipped with the cavity, the valve body is equipped with water inlet and delivery port, spring mechanism locates in the cavity of valve gap, and locates the upper end of diaphragm, adjustment mechanism connects in the valve gap, adjustment mechanism locates spring mechanism's upper end, be equipped with the cut-off face in the cavity of valve body, valve body and cut-off face integrated into one piece.
When the back pressure valve is used, fluid enters from the water inlet of the back pressure valve and is blocked by the diaphragm, and then the fluid generates upward pressure on the diaphragm. When the pressure is high enough, the spring is compressed, and the fluid jacks up the diaphragm to form a channel and flows out of the water outlet of the backpressure valve; if the fluid pressure is not enough, a pressure building is formed, the inlet pressure is increased until the rated pressure is reached, and the diaphragm is jacked up to form a passage.
Above-mentioned back pressure valve is in the use, behind the water jack-out diaphragm, too fast when delivery port discharge velocity, will lead to whole pressure drop range too big, does not reach the pressure value that the spring set up when jack-up diaphragm pressure, leads to the diaphragm to reset rapidly, and the water of the back mouth of a river one end of reseing makes the pressure value of water inlet one end rise rapidly again, repeatedly opens the diaphragm again after reaching the spring set value. In the process, the repeated opening and closing process that the diaphragm can form, the diaphragm can constantly strike the valve body under the effect of spring in the process, easily form vibrations, be unfavorable for the long-term use of back pressure valve, wait to improve.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides a shock attenuation back pressure valve, it has the vibrations of reduction back pressure valve for back pressure valve uses more lasting advantage.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a shock attenuation back pressure valve, is including valve gap, diaphragm and the valve body that connects gradually, be provided with water inlet and delivery port on the valve body, the one end that the valve body is close to the valve gap is provided with and corresponds the water inlet guide slot and the play water guide slot that switch on with water inlet and delivery port, be provided with on the valve gap and be used for supporting the spring mechanism that tight diaphragm made the valve body to close in a water guide slot, the valve body keep away from valve gap one end seted up with the mounting groove of the coaxial setting of play water guide slot and intercommunication, still be provided with the adjusting part who is used for controlling valve body play.
Through above-mentioned technical scheme, set up adjusting part, can adjust the size of play water flow channel through adjusting part. At this time, the fluid enters from the water inlet of the back pressure valve and is blocked by the diaphragm, so that the fluid generates upward pressure on the diaphragm. When the pressure is enough, the spring mechanism is compressed, and the fluid jacks up the diaphragm to form a channel and flows out from a water outlet channel formed by the water outlet guide groove and the water outlet of the backpressure valve.
When the valve body shakes strongly, the water outlet flow channel can be adjusted to be small through the adjusting assembly. At the moment, when the fluid passes through the water outlet flow channel, the water outlet flow channel is reduced due to the adjusting assembly, so that the discharge speed of the water outlet is reduced. At this moment, fluid accumulation on one side of the water inlet enables the spring mechanism to be compressed to enable the diaphragm to be jacked open, and due to the fact that the discharge speed of the water outlet is reduced, the pressure drop value between the water inlet and the water outlet, close to the diaphragm, of the valve body is reduced, the frequency of the spring mechanism abutting against the diaphragm to reset is greatly reduced, the frequency of the diaphragm impacting the valve body is reduced, and the damping effect is achieved.
In addition, under the ideal state, when the runner adjusts to suitable size, the speed that the water inlet mended is equal with drainage speed, and the fluid that the delivery port was discharged this moment in time mends at the water inlet to make the pressure drop of diaphragm department become littleer, can make spring mechanism continuously be in compression state, thereby reduced the valve body because spring mechanism makes diaphragm striking valve body form vibrations, thereby further realized absorbing effect.
In addition, the adjusting assembly can control the water outlet flow channel to achieve the closing effect, so that the back pressure valve can be used as a stop valve, and the dual-purpose effect of one valve is achieved.
Furthermore, the adjusting component is a threaded connection adjusting column in the mounting groove, and one end of the adjusting column facing the diaphragm is used for blocking the communication size of the water outlet guide groove and the water outlet.
Through the technical scheme, when the size of the water outlet flow channel needs to be adjusted, the relative position of the adjusting column and the water outlet guide groove can be adjusted, so that the position of the adjusting column close to one end of the diaphragm is changed to shield the water outlet guide groove, the flow channel between the water outlet guide groove and the water outlet is changed, and the adjustment of the size of the flow channel is realized.
Furthermore, the water outlet guide groove is cylindrical, and the diameter of the adjusting column is equal to or larger than that of the water outlet guide groove.
Through above-mentioned technical scheme, the diameter of adjusting the post is more than or equal to the diameter of play water guide slot, when adjusting the post and contradict on a water guide slot completely near the one end of diaphragm, can be so that the relation of play water guide slot and delivery port disconnection intercommunication to realize the effect that dams, thereby make the back pressure valve can also regard as the stop valve to use.
Furthermore, the diameter of one end of the adjusting column close to the water outlet guide groove is gradually reduced towards the direction close to the membrane.
Through above-mentioned technical scheme, the convergent setting of regulation post for the terminal surface of adjusting the post can lead to the fluid, avoids the fluid to directly hit and adjusts the post terminal surface, when adjusting the post in addition and making the water outlet flow way break-make, the one end of adjusting the post and being close to water outlet guide slot can be embedded into water outlet guide slot, thereby the leakproofness is better when making as the stop valve use, and the effect of damming is more stable.
Furthermore, the adjusting component comprises an installation part arranged in the installation groove, an adjusting ball rotatably connected in the installation part, and a rotating part fixedly connected with the adjusting ball and rotatably connected with the installation part; the installation part is blocked at the junction of the water outlet and the water outlet guide groove, the side walls of the installation part, which are close to the water outlet guide groove and the water outlet, are provided with guide grooves, the two guide grooves are correspondingly communicated with the water outlet guide groove and the water outlet, and the two guide grooves are communicated; the adjusting ball is correspondingly provided with a flow guide hole communicated with the two flow guide grooves; the rotation part penetrates out of the flow guide hole used for controlling the adjusting ball and the two flow guide grooves in the direction away from the diaphragm to be staggered or communicated with each other.
Through above-mentioned technical scheme, when needs adjustment outlet flow path size, can make the ball regulation rotate through rotating the portion of rotating for the intercommunication part between the water conservancy diversion hole of ball regulation and two guiding gutters diminishes, thereby realize the regulation to outlet flow path, when water conservancy diversion hole staggers completely with the guiding gutters, the condition of break-make just appears in outlet flow path, thereby make the back pressure valve be in the state of damming, make the back pressure valve can regard as the stop valve to use.
Furthermore, the water outlet guide groove is cylindrical, the diameter of the adjusting ball is larger than that of the water outlet guide groove, and the diameter of the flow guide hole is the same as that of the water outlet guide groove and the flow guide groove.
Through above-mentioned technical scheme for the back is installed to the regulating part, when guiding hole and guiding gutter are adjusted well completely and are communicated completely with play water guide slot and delivery port, the regulating part that increases can not cause the influence to the play water flow of back pressure valve, makes the back pressure valve can keep its original discharge.
Furthermore, the adjusting ball is made of plastic.
Through above-mentioned technical scheme, the regulation ball is plastics, and the plastics material has better corrosion resistant effect, and the plastics material has certain elasticity in addition, and when the regulation ball used, the regulation ball can support tightly in the installation department for need adopt certain power when the regulation ball rotates, thereby also can make the regulation back position of regulation ball more stable.
Furthermore, the installation part comprises a first splicing part and a second splicing part which are spliced, and the splicing surfaces of the first splicing part and the second splicing part are arranged through the rotating axis of the adjusting ball.
Through above-mentioned technical scheme, the installation department forms through the concatenation for the installation of adjusting ball and installation department is more convenient.
Furthermore, one end of the mounting part, which is far away from the valve body, is also in threaded connection with a locking ring for tightly and fixedly abutting the mounting part, and the rotating part correspondingly penetrates through the locking ring.
Through above-mentioned technical scheme, install the regulation ball through the installation department for when the regulation ball rotates, the installation department can be fixed relatively with the valve body, can fix the installation department through the locking ring, thereby when making the regulation ball rotate, the installation department is motionless basically, is difficult for this moment to exert an influence to the locking of locking ring, makes whole use more stable.
Further, the rotation portion is including setting up in the dwang that the rotation portion kept away from valve gap one end, the dwang is located in the mounting groove, the valve body is kept away from valve gap one end and is provided with the indicateing mark that is used for instructing water conservancy diversion hole and two guiding gutters to align.
Through above-mentioned technical scheme, set up the pilot symbol, can reach the effect that makes water conservancy diversion hole and guiding gutter adjust well completely through aiming at the pilot symbol with the dwang, the water outlet flow channel is in the biggest state this moment.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the size of the water outlet flow channel is adjusted through the adjusting assembly, so that the vibration of the valve body caused by the fact that the membrane impacts the valve body through the spring mechanism is reduced, and the damping effect is achieved; in addition, the adjusting assembly can also control the water outlet flow channel to achieve the closing effect, so that the back pressure valve can also be used as a stop valve, and the dual-purpose effect of one valve is achieved;
(2) by arranging the adjusting column and adjusting the relative position of the adjusting column and the water outlet guide groove, the flow channel between the water outlet guide groove and the water outlet is changed, so that the size of the water outlet flow channel is adjusted;
(3) through setting up installation department, adjusting ball and rotation portion, drive the adjusting ball through rotation portion and rotate and make the water conservancy diversion hole of adjusting ball and the intercommunication relation change of two guiding gutters of installation department, realize the regulation to the play water flow channel size.
Drawings
FIG. 1 is a general schematic view of the first embodiment, showing the opening state of the adjusting column;
FIG. 2 is an overall view of the first embodiment, which is used for showing the closed state of the adjusting column;
FIG. 3 is an overall view of the second embodiment, which is used for showing the state that the adjusting component is opened;
FIG. 4 is an overall view of the second embodiment, which is used for showing the closed state of the adjusting component;
fig. 5 is a schematic partial explosion diagram of the adjusting assembly of the second embodiment.
Reference numerals: 1. a valve cover; 2. a membrane; 3. a valve body; 4. a water inlet; 5. a water outlet; 6. a water inlet guide groove; 7. a water outlet guide groove; 8. a spring mechanism; 81. a tightening part; 82. the spring is tightly propped; 9. an adjusting block; 10. mounting grooves; 11. an adjustment assembly; 111. an adjustment column; 112. an installation part; 1121. a first splice; 1122. a second splice; 113. adjusting the ball; 114. a rotating part; 12. a seal ring; 13. locking a ring; 14. a diversion trench; 15. a rubber pad; 16. a flow guide hole; 17. rotating the rod; 18. and (4) an indicator.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
The first embodiment is as follows:
a damping back pressure valve comprises a valve cover 1, a diaphragm 2 and a valve body 3 which are connected in sequence as shown in figures 1 and 2. A water inlet 4 and a water outlet 5 are arranged on the valve body 3, and a water inlet guide groove 6 and a water outlet guide groove 7 which are correspondingly communicated with the water inlet 4 and the water outlet 5 are arranged at one end of the valve body 3 close to the valve cover 1. The material of the diaphragm 2 can be a polytetrafluoroethylene composite material, and the diaphragm 2 is positioned between the valve body 3 and the valve cover 1.
The valve cap 1 is further provided with a spring mechanism 8, the spring mechanism 8 comprises a tightly-abutting portion 81 connected in the valve cap 1 in a sliding manner, and a tightly-abutting spring 82 arranged in the valve cap 1, the tightly-abutting portion 81 is generally cylindrical, and the tightly-abutting portion 81 is arranged close to the diaphragm 2. The elastic force of the abutting spring 82 abuts against the abutting portion 81 to press the diaphragm 2 on the valve body 3, so that the diaphragm 2 is used for sealing the water outlet guide groove 7. Usually, the end of the bonnet 1 away from the valve body 3 is further connected with an adjusting block 9 by a thread, and the adjusting block 9 abuts against one end of the abutting spring 82 away from the abutting portion 81 to adjust the elastic force of the abutting spring 82, so as to adjust the rated pressure of the back pressure valve.
As shown in fig. 1, the water outlet guide channel 7 and the water outlet 5 are both cylindrical holes, and in the embodiment, the diameter of the water outlet guide channel 7 is equal to that of the water outlet 5. The valve body 3 is kept away from valve gap 1 one end and is offered the mounting groove 10 with the coaxial setting of play water guide slot 7, and mounting groove 10 sets up with going out water guide slot 7 intercommunication, and the diameter of mounting groove 10 is greater than or equal to the diameter setting of play water guide slot 7.
An adjusting component 11 is further arranged in the mounting groove 10, the adjusting component 11 is mainly used for controlling the size of a water outlet flow channel of the valve body 3, and the water outlet flow channel is formed by communicating the water outlet guide groove 7 with the water outlet 5. The adjusting component 11 is a adjusting column 111 screwed in the mounting groove 10, the diameter of the adjusting column 111 is larger than or equal to the diameter of the water outlet guide groove 7, in this embodiment, the adjusting column 111 and the water outlet guide groove 7 are coaxially arranged, and the diameter of the adjusting column 111 is equal to the diameter of the water outlet guide groove 7. One end of the adjusting column 111 facing the water outlet guide groove 7 can be embedded into the water outlet guide groove 7 to block the water outlet guide groove 7.
Still inlay in the mounting groove 10 and be equipped with sealing ring 12, the sealing ring is around the lateral wall setting of adjusting post 111, and sealing ring 12 can be sealed for the packing, and it has the clamp ring still to go back threaded connection on the mounting groove 10, and the clamp ring is located one side that water guide slot 7 was kept away from to sealing ring 12 and is used for compressing tightly sealing ring 12, further strengthens sealedly through sealing ring 12. The diameter of the end of the adjusting column 111 close to the water outlet guide groove 7 is gradually reduced towards the direction close to the membrane 2, in this embodiment, the end of the adjusting column 111 close to the water outlet guide groove 7 is arranged in a spherical manner, and in actual operation, the adjusting column can also be arranged in a conical manner. One end of the adjusting column 111 facing the membrane 2 is used for blocking the size of the communication position of the water outlet guide groove 7 and the water outlet 5, so that the flow channel at the communication position of the water outlet guide groove 7 and the water outlet 5 is adjusted, and the adjustment of the water outlet flow channel is realized. When one end of the adjusting column 111 facing the membrane 2 extends out of the water outlet 5 and abuts against the water outlet guide groove 7, the adjusting column 111 can seal the water outlet guide groove 7, so that the water outlet flow channel is closed.
The working principle of the embodiment is as follows:
with the above back pressure valve, fluid enters from the back pressure valve inlet 4, and is blocked by the diaphragm 2, so that the fluid exerts an upward pressure on the diaphragm 2. When the pressure is high enough, the spring mechanism 8 is compressed, and the fluid jacks up the diaphragm 2 to form a channel and flows out from a water outlet channel formed by the water outlet guide groove 7 of the backpressure valve and the water outlet 5.
When the valve body 3 vibrates strongly, the water outlet flow passage can be adjusted to be small through the adjusting component 11. At this time, when the fluid passes through the water outlet flow passage, the water outlet flow passage is reduced due to the adjustment assembly 11, so that the discharge speed of the water outlet 5 is reduced. At this moment, the fluid accumulation on one side of the water inlet 4 compresses the spring mechanism 8 to enable the diaphragm 2 to be pushed open, and the discharge speed of the water outlet 5 is reduced, so that the pressure drop value between the water inlet and the water outlet close to the diaphragm 2 of the valve body 3 is reduced, the frequency of the spring mechanism 8 abutting against the diaphragm 2 to reset is greatly reduced, the frequency of the diaphragm 2 impacting the valve body 3 is reduced, and the damping effect is achieved.
In addition, under the ideal state, when the runner is adjusted to suitable size, the speed of mending by the water inlet 4 is equal to the drainage speed, and the fluid discharged from the water outlet 5 is mended in time at the water inlet 4 at this moment, so that the pressure drop at the position of the diaphragm 2 becomes smaller, the spring mechanism 8 can be continuously in the compression state, the vibration of the valve body 3 caused by the fact that the diaphragm 2 impacts the valve body 3 due to the spring mechanism 8 is reduced, and the damping effect is further realized.
In addition, when the adjusting column 111 is screwed in to seal the water outlet flow channel, the water outlet flow channel is completely closed, so that the back pressure valve can be used as a stop valve, and the dual-purpose effect of one valve is achieved.
Example two:
a shock absorption back pressure valve, as shown in figures 3 and 4, is different from the first embodiment in the structure of an adjusting component 11.
As shown in fig. 3 and 4, the mounting groove 10 includes a mounting section and a fastening section, the mounting section is a square groove, the fastening section is a threaded section, and the threaded section is located at one end of the mounting section far away from the valve cover 1 and is larger than the mounting section. The adjusting assembly 11 includes a mounting portion 112 disposed in the mounting section of the mounting groove 10, an adjusting ball 113 rotatably connected in the mounting portion 112, and a rotating portion 114 fixedly connected to the adjusting ball 113 and rotatably connected to the mounting portion 112. The end of the mounting portion 112 away from the valve body 3 is further connected with a locking ring 13 in a threaded manner, the locking ring 13 is connected with the fastening section of the mounting groove 10 in a threaded manner, and the locking ring 13 abuts against the end of the mounting portion 112 away from the diaphragm 2 and is used for abutting and fixing the mounting portion 112.
As shown in fig. 3 and 5, the mounting portion 112 is square, and the mounting portion 112 is located at the mounting section of the mounting groove 10 and is blocked at the boundary between the water outlet 5 and the water outlet guide groove 7. The installation part 112 has guide grooves 14 on the side walls close to the water outlet guide groove 7 and the water outlet 5, the two guide grooves 14 are correspondingly communicated with the water outlet guide groove 7 and the water outlet 5, and the two guide grooves 14 are communicated with each other. The diversion trench 14 is arranged in the same diameter with the corresponding water outlet guide slot 7 and the corresponding water outlet 5, the diversion trench 14 close to the water outlet guide slot 7 is coaxially arranged with the water outlet guide slot 7, and the diversion trench 14 close to the water outlet 5 is coaxially arranged with the water outlet 5. In this embodiment, the two guiding grooves 14 are vertically arranged. The mounting portion 112 includes a first splicing portion 1121 and a second splicing portion 1122, and the splicing surfaces of the first splicing portion 1121 and the second splicing portion 1122 are arranged by the rotation axis of the adjusting ball 113, in this embodiment, the first splicing portion 1121 and the second splicing portion 1122 are symmetrically arranged. During actual use, the rubber pad 15 can be further arranged on the splicing surface of the first splicing part 1121 and the second splicing part 1122, and the rubber pad 15 can be extruded by the first splicing part 1121 and the second splicing part 1122 to deform, so that the sealing performance of the splicing seam of the mounting part 112 is better.
The adjusting ball 113 is made of plastic material, and the outer side wall of the adjusting ball 113 is tightly abutted against and arranged in the mounting part 112. The rotation axis of the adjusting ball 113 is overlapped with the axis of the water outlet guide groove 7. The diameter of the adjusting ball 113 is larger than that of the water outlet guide groove 7, the adjusting ball 113 is correspondingly provided with a guide hole 16, two ends of the guide hole 16 are correspondingly communicated with the two guide grooves 14, two ends of the guide hole 16 are correspondingly arranged with the guide grooves 14, and the diameter of the guide hole 16 is the same as that of the guide grooves 14.
The rotation axis of the rotation part 114 is overlapped with the axis of the water outlet guide groove 7, the rotation part 114 penetrates out of the installation part 112 towards the direction far away from the diaphragm 2, the rotation part 114 correspondingly penetrates through the locking ring 13, the rotation part 114 comprises a rotation rod 17 arranged at one end of the rotation part 114 far away from the valve cover 1, the rotation rod 17 is positioned at one side of the locking ring 13 far away from the installation part 112, and the rotation rod 17 is positioned in the installation groove 10. The rotating part 114 is used for controlling the guide hole 16 of the adjusting ball 113 to be staggered or communicated with the two guide grooves 14. An indicator 18 is arranged at one end of the valve body 3, which is far away from the valve cover 1, and the indicator 18 is a groove. When the rotating lever 17 is directed to the indicator 18, the indicator 18 may be used to indicate that the guide holes 16 are in complete alignment with the two guide slots 14.
The working principle of the embodiment is as follows:
when the size of the water outlet channel needs to be adjusted, the rotating part 114 can be rotated to enable the diversion hole 16 and the diversion groove 14 on one side of the water outlet 5 to be staggered, so that the effect of adjusting the size of the water outlet channel is achieved, and when the diversion hole 16 and the diversion groove 14 are completely staggered, the water outlet channel is in a complete cut-off state, so that the back pressure valve can be used as a stop valve.
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 (10)
1. The utility model provides a shock attenuation back pressure valve, is including valve gap (1), diaphragm (2) and valve body (3) that connect gradually, be provided with water inlet (4) and delivery port (5) on valve body (3), the one end that valve body (3) are close to valve gap (1) is provided with and corresponds the guide slot (6) of intaking and go out water guide slot (7) that switch on with water inlet (4) and delivery port (5), be provided with on valve gap (1) and be used for supporting tight diaphragm (2) in play water guide slot (7) make spring mechanism (8) that valve body (3) closed, its characterized in that: valve body (3) keep away from valve gap (1) one end seted up with go out water guide slot (7) coaxial setting and mounting groove (10) of intercommunication, still be provided with in mounting groove (10) and be used for controlling valve body (3) play water flow channel size's adjusting part (11).
2. A shock absorbing back pressure valve as claimed in claim 1, wherein: adjusting part (11) are adjusting post (111) in mounting groove (10) for threaded connection, adjusting post (111) is used for the intercommunication size of separation play water guide slot (7) and delivery port (5) towards the one end of diaphragm (2).
3. A shock absorbing back pressure valve as claimed in claim 2, wherein: the water outlet guide groove (7) is cylindrical, and the diameter of the adjusting column (111) is equal to or larger than that of the water outlet guide groove (7).
4. A shock absorbing back pressure valve as claimed in claim 3, wherein: the diameter of one end, close to the water outlet guide groove (7), of the adjusting column (111) is gradually reduced towards the direction close to the membrane (2).
5. A shock absorbing back pressure valve as claimed in claim 1, wherein: the adjusting component (11) comprises an installation part (112) arranged in the installation groove (10), an adjusting ball (113) rotatably connected in the installation part (112), and a rotating part (114) fixedly connected to the adjusting ball (113) and rotatably connected with the installation part (112); the mounting part (112) is blocked at the junction of the water outlet (5) and the water outlet guide groove (7), the side walls of the mounting part (112) close to the water outlet guide groove (7) and the water outlet (5) are provided with guide grooves (14), the two guide grooves (14) are correspondingly communicated with the water outlet guide groove (7) and the water outlet (5), and the two guide grooves (14) are communicated; the adjusting ball (113) is correspondingly provided with a flow guide hole (16) communicated with the two flow guide grooves (14); the rotating part (114) penetrates out of the mounting part (112) towards the direction far away from the membrane (2) and is used for controlling the diversion hole (16) of the adjusting ball (113) to be staggered or communicated with the two diversion grooves (14).
6. A shock absorbing back pressure valve as claimed in claim 5, wherein: the water outlet guide groove (7) is cylindrical, the diameter of the adjusting ball (113) is larger than that of the water outlet guide groove (7), and the diameter of the guide hole (16) is the same as that of the water outlet guide groove (7) and the guide groove (14).
7. A shock absorbing back pressure valve as claimed in claim 6, wherein: the adjusting ball (113) is made of plastic.
8. A shock absorbing back pressure valve as claimed in claim 5, wherein: the mounting part (112) comprises a first splicing part (1121) and a second splicing part (1122) which are spliced, and splicing surfaces of the first splicing part (1121) and the second splicing part (1122) are arranged through a rotating axis of the adjusting ball (113).
9. A shock absorbing back pressure valve as claimed in claim 5, wherein: the one end that the installation department (112) is kept away from valve body (3) is threaded connection still and is used for supporting locking ring (13) fixed with installation department (112), rotation portion (114) correspond and pass locking ring (13) set up.
10. A shock absorbing back pressure valve as claimed in claim 5, wherein: rotation portion (114) is including setting up dwang (17) of keeping away from valve gap (1) one end in rotation portion (114), dwang (17) are located in mounting groove (10), valve body (3) are kept away from valve gap (1) one end and are provided with indicateing mark (18) that are used for instructing water conservancy diversion hole (16) and two water conservancy diversion grooves (14) to align.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921704562.9U CN210566349U (en) | 2019-09-30 | 2019-09-30 | Shock attenuation back pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921704562.9U CN210566349U (en) | 2019-09-30 | 2019-09-30 | Shock attenuation back pressure valve |
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| CN210566349U true CN210566349U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921704562.9U Withdrawn - After Issue CN210566349U (en) | 2019-09-30 | 2019-09-30 | Shock attenuation back pressure valve |
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| CN (1) | CN210566349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578806A (en) * | 2019-09-30 | 2019-12-17 | 上海龙猛机械有限公司 | Shock attenuation back pressure valve |
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2019
- 2019-09-30 CN CN201921704562.9U patent/CN210566349U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578806A (en) * | 2019-09-30 | 2019-12-17 | 上海龙猛机械有限公司 | Shock attenuation back pressure valve |
| CN110578806B (en) * | 2019-09-30 | 2024-04-05 | 上海龙猛机械有限公司 | Damping back pressure valve |
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