阅读说明：本技术 一种减震背压阀 (Shock attenuation back pressure valve ) 是由 张齐 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种减震背压阀,涉及背压阀领域,其技术方案要点是：包括依次连接的阀盖、膜片以及阀体,所述阀体上设置有进水口和出水口,所述阀体靠近阀盖的一端设置有与进水口和出水口对应导通的进水导槽和出水导槽,所述阀盖上设置有用于抵紧膜片于出水导槽使得阀体关闭的弹簧机构,所述阀体远离阀盖一端开设有与所述出水导槽同轴设置并连通的安装槽,所述安装槽内还设置有用于控制阀体出水流道大小的调节组件。设置调节组件,通过调节组件调整出水流道的大小,减少了阀体因为弹簧机构使得膜片撞击阀体形成震动,从而实现减震的效果。(The invention discloses a damping back pressure valve, which relates to the field of back pressure valves and adopts the technical scheme that: 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.)

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.

Technical Field

The invention relates to the field of back pressure valves, in particular to a damping 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.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a damping back pressure valve which has the advantages of reducing the vibration of the back pressure valve and enabling the back pressure valve to be used for a longer time.

In order to achieve the purpose, the invention provides the 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 invention has the beneficial effects 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 invention is described in detail below with reference to the figures and examples.