CN220016212U

CN220016212U - Pressure reducing valve

Info

Publication number: CN220016212U
Application number: CN202320868247.XU
Authority: CN
Inventors: 颜江林
Original assignee: Xiamen Apisi Intelligent Manufacturing System Co ltd
Current assignee: Xiamen Apisi Intelligent Manufacturing System Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-11-14
Anticipated expiration: 2033-04-18

Abstract

The utility model discloses a pressure reducing valve, which comprises a body, wherein a water channel body is arranged in the body, a movable piston is sleeved on the periphery of the water channel body, a water outlet is arranged on the periphery of the water channel body, a water passing groove which can be communicated with the water outlet is formed in the movable piston, the movable piston at the water outlet end of the water passing groove can be in sealing fit with the water channel body, and the water passing groove can be communicated with the water outlet of the body.

Description

Pressure reducing valve

Technical Field

The present utility model relates to a pressure reducing valve.

Background

The existing pressure reducing valve has the following problems: 1. the existing pressure reducing valve has the defects of transverse sealing, large noise, unstable pressure, howling and the like in the working process, and particularly, shaking and noise are easy to generate when a waterway is closed or opened; 2. the existing pressure reducing valve is an integrated water channel and an integrated cylindrical shell, so that the aperture is smaller, and the flow is smaller.

Disclosure of Invention

In order to solve the above technical problems, an object of the present utility model is to provide a pressure reducing valve.

The utility model is realized by the following technical scheme:

the utility model provides a relief pressure valve, includes the body, this internal water course body that is provided with, water course body periphery cover is equipped with the removal piston, water course body periphery side is provided with the delivery port, the removal piston is provided with the water groove that can be linked together with the delivery port, and the removal piston that is located the water groove water outlet can with the sealed cooperation of water course body, the water groove can be linked together with the delivery port of body.

In the embodiment of the utility model, the periphery of one end of the water channel body is provided with the gasket, and the movable piston can be in sealing fit with the gasket.

In the embodiment of the utility model, the outer periphery of the gasket is provided with a first arc-shaped surface, the inner periphery of the movable piston is provided with a second arc-shaped surface, the first arc-shaped surface can be in sealing fit with the second arc-shaped surface, and the second arc-shaped surface is arranged at the water outlet end of the water passing groove.

In the embodiment of the utility model, one end of the water channel body is provided with the step surface, the gasket is connected with the step surface in a matched manner, one end of the water channel body is also provided with the lock nut, and the lock nut fixes the gasket on the water channel body.

In the embodiment of the utility model, the end face of the lock nut facing the gasket is provided with the groove, one end face of the gasket is provided with the convex block which can be matched and connected with the groove, the other end face of the gasket is provided with the convex part, and the convex part is matched and connected with the step surface.

In the embodiment of the utility model, a spring matched with the movable piston is also arranged in the body.

In the embodiment of the utility model, the body comprises an upper body and a lower body, the water channel body is connected with the upper body, a sealing ring is arranged between the outer peripheral wall of the movable piston and the inner peripheral wall of the upper body, one end of the spring is connected with the movable piston, and the other end of the spring is connected with the water channel body and/or the upper body.

In the embodiment of the utility model, a first cavity is formed among the periphery of the movable piston, the periphery of the water channel body, the inner periphery of the upper body and the sealing ring, the first cavity is communicated with the periphery of the body through the connecting hole, and the sealing ring is arranged between the upper body and the water channel body.

In the embodiment of the utility model, a water outlet cavity is formed among the periphery of the water channel body, the periphery of the movable piston, the sealing ring, the inner periphery of the upper body and the inner periphery of the lower body, and the water outlet cavity can be communicated with the water outlet of the body and the water passing groove.

In the embodiment of the utility model, the water channel body is internally provided with the filter screen, the water inlet end of the filter screen is communicated with the water inlet of the body, and the water outlet end of the filter screen can be communicated with the water outlet of the water channel body.

The pressure reducing valve has the following beneficial effects: the pressure reducing valve structure has the advantages that through the sealing of the two arc surfaces, the pressure reducing valve structure has transverse sealing and longitudinal sealing, and has good sealing performance as a whole, so that the effects of noise reduction, pressure stability, no whistle and the like are achieved; the pressure reducing valve is a split type water channel and a split type body, so that the pressure reducing valve has a larger aperture and has larger flow.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded view of the present utility model.

Fig. 2 is a cross-sectional view of the present utility model.

Fig. 3 is an enlarged schematic view at a in fig. 2.

Fig. 4 is a second cross-sectional view of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Referring to the drawings, a pressure reducing valve comprises a body 10, a water channel body 20 is arranged in the body, a movable piston 30 is sleeved on the periphery of the water channel body, the movable piston can axially move around the water channel body, preferably, the front end of the movable piston in the water flow direction is in sealing connection with the periphery of the water channel body, a water outlet 21 is arranged on the periphery of the water channel body, in one embodiment, four water outlets 21 are uniformly arranged on the periphery of the water channel body, water grooves 31 which can be communicated with the water outlets are formed in the inner periphery of the movable piston, water flowing out of the water outlet 21 can flow to the water grooves, the movable piston at the water outlet end of the water grooves can be in sealing fit with the water channel body, the water grooves can be communicated with the water outlet 11 of the body, when water starts to flow, water can flow from the water outlet 21 to the water grooves and then flow out of the water outlet 11 of the body through the water channel body, when the pressure in the whole water channel rises, the water flow can be reacted to the movable piston in the opposite direction, the water flow out of the water grooves in the direction of the water channel body exceeds the water outlet 21, the water grooves can flow out of the body in the opposite directions, and the water grooves can flow out of the water grooves of the body and the water outlet 11 can not be in sealing fit with the whole water outlet 11.

Preferably, a gasket 22 is arranged at the periphery of one end of the water channel body, the movable piston can be in sealing fit with the gasket, when the pressure of the whole water channel rises, the water outlet end of the water passing groove of the movable piston is in sealing fit with the gasket, water flow does not flow out of the water outlet 11 of the body any more, and the pressure of the whole water channel is reduced.

Further, the packing ring periphery is provided with first arcwall face 23, it is provided with second arcwall face 32 to remove the piston inner periphery, first arcwall face can with the sealed cooperation of second arcwall face, the second arcwall face sets up the play water end at the water groove, has realized wholly having horizontal seal and vertical seal through the sealed cooperation of two arcwall faces, has better leakproofness to reach and fall noise, pressure stability, when opening and closing water again simultaneously, shake can not appear, thereby has not had the effect of squeal.

Still further, water course body one end is provided with step face 24, the packing ring is connected with the step face cooperation, water course body one end still sets up lock nut 25, lock nut fixes the packing ring on the water course body, makes the three form an integral spare part, the equipment of the product of being convenient for.

Preferably, the end face of the lock nut facing the washer is provided with a groove 26, one end face of the washer is provided with a bump 27 capable of being connected with the groove in a matched manner, the other end face of the washer is provided with a protruding portion 28, and the protruding portion is connected with the step face in a matched manner, so that integral sealing can be ensured, and water flow can flow from the water outlet 21 of the water channel body to the water outlet 11 of the body through the water groove after flowing out.

In a preferred embodiment of the present utility model, a spring 40 is further disposed in the body and is matched with the movable piston, under the action of the spring, it is ensured that the water outlet end of the water passing groove of the movable piston is not in sealing fit with the gasket when the pressure reducing valve is just in water passing, so that water flow can normally flow out of the water outlet 11 of the body, when the pressure of the integral water channel rises, the pressure of the water flow overcomes the acting force of the spring, so that the movable piston moves in the direction opposite to the water flow direction, and finally the water flow stays in the water passing groove, thereby preventing damage to the integral water channel at the rear end due to overlarge water pressure.

Preferably, the body comprises an upper body 12 and a lower body 13, the waterway body being connected to the upper body, preferably: the periphery of the water inlet end of the water channel body is in threaded connection with the inner periphery of the upper body, a sealing ring 50 is arranged between the outer peripheral wall of the movable piston and the inner peripheral wall of the upper body, one end of the spring is connected with the movable piston, the other end of the spring is connected with the water channel body and/or the upper body, and referring to figure 2 of the accompanying drawings of the specification, in this embodiment, the other end of the spring is in matched connection with the water channel body.

Further, form first cavity 14 between the outer periphery of movable piston, the outer periphery of the water course body, the inner periphery of the upper body and the sealing washer, first cavity is linked together with the outer periphery of the body through connecting hole 15, namely with atmosphere, so can not have too much effect when movable piston moves towards the opposite direction of the water flow direction, only need overcome the effort of spring can, be provided with sealing ring 51 between upper body and the water course body, prevent that rivers from flowing out from between upper body and the water course body, cause the phenomenon of leaking, destroy the structural nature of relief pressure valve arrangement. Preferably, a sealing ring 52 is also provided between the inner periphery of the moving piston and the outer periphery of the waterway body.

Still further, water outlet cavity 16 is formed to water course body periphery, mobile piston periphery, sealing washer, go up body inner periphery and lower body inner periphery, the delivery port and the water groove of water outlet cavity ability UNICOM body, and when the pressure of the whole water course of rear end risees, the water pressure in the water cavity also rises along with rising, and the water pressure in the water cavity of crossing can act on the mobile piston in this time, and the mobile piston removes, makes mobile piston and packing ring sealing fit.

Preferably, the water channel body is internally provided with a filter screen 60, the water inlet end of the filter screen is communicated with the water inlet 17 of the body, and the water outlet end of the filter screen can be communicated with the water outlet 21 of the water channel body.

According to the utility model, through the sealing of the two arc surfaces, the sealing device has transverse sealing and longitudinal sealing, has better sealing performance as a whole, and particularly refers to figure 3 of the specification, so that the effects of noise reduction, pressure stability, no whistle and the like are achieved; the pressure reducing valve is a split type water channel and a split type body, so that the pressure reducing valve has a larger aperture and has larger flow.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, as noted above, it is to be understood that the utility model is not limited to the forms disclosed herein but is not to be construed as excluding other embodiments, and that various other combinations, modifications and environments are possible and may be made within the scope of the inventive concepts described herein, either by way of the foregoing teachings or by those of skill or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a relief pressure valve, includes the body, this internal water course body that is provided with, its characterized in that, water course body periphery cover is equipped with the removal piston, water course body periphery side is provided with the delivery port, the removal piston is provided with the water groove that can be linked together with the delivery port, and the removal piston that is located the water groove play water end can with water course body sealing fit, the water groove can be linked together with the delivery port of body.

2. A pressure reducing valve according to claim 1, wherein a gasket is provided on the periphery of one end of the waterway body, and the movable piston is sealingly engaged with the gasket.

3. The pressure reducing valve according to claim 2, wherein a first arc-shaped surface is arranged on the outer periphery of the gasket, a second arc-shaped surface is arranged on the inner periphery of the movable piston, the first arc-shaped surface can be in sealing fit with the second arc-shaped surface, and the second arc-shaped surface is arranged at the water outlet end of the water passing groove.

4. A pressure reducing valve according to claim 3, wherein one end of the waterway body is provided with a stepped surface, the gasket is cooperatively connected with the stepped surface, and one end of the waterway body is further provided with a lock nut, and the lock nut fixes the gasket on the waterway body.

5. The pressure reducing valve according to claim 4, wherein the lock nut is provided with a groove on an end face facing the washer, one end face of the washer is provided with a projection capable of being connected with the groove in a matching manner, and the other end face of the washer is provided with a protruding portion connected with the step face in a matching manner.

6. A pressure relief valve as claimed in any one of claims 1 to 5 wherein a spring is also provided in the body to cooperate with the moving piston.

7. The pressure reducing valve according to claim 6, wherein the body comprises an upper body and a lower body, the water channel body is connected with the upper body, a sealing ring is arranged between the outer peripheral wall of the movable piston and the inner peripheral wall of the upper body, one end of the spring is connected with the movable piston, and the other end of the spring is connected with the water channel body and/or the upper body.

8. The pressure reducing valve according to claim 7, wherein a first cavity is formed among the outer periphery of the movable piston, the outer periphery of the waterway body, the inner periphery of the upper body and the sealing ring, the first cavity is communicated with the outer periphery of the body through the connecting hole, and the sealing ring is arranged between the upper body and the waterway body.

9. The pressure reducing valve as set forth in claim 8, wherein a water outlet chamber is formed between the outer periphery of the waterway body, the outer periphery of the movable piston, the sealing ring, the inner periphery of the upper body and the inner periphery of the lower body, and the water outlet chamber is capable of communicating the water outlet of the body with the water passing groove.

10. A pressure reducing valve according to any one of claims 1-5 and 7-9, wherein a filter screen is provided in the waterway body, the water inlet end of the filter screen is in communication with the water inlet of the body, and the water outlet end of the filter screen is in communication with the water outlet of the waterway body.