CN209743659U - Diaphragm valve and liquid feeding system using same - Google Patents

Abstract

the utility model provides a diaphragm valve and use liquid feeding system of this diaphragm valve, the diaphragm valve includes the valve body, be equipped with at least one passageway that supplies the liquid fodder circulation in the valve body, the installing port has been seted up on the lateral wall of at least one passageway, installing port department releasable connection has the valve gap, it is fixed with the diaphragm to press from both sides the dress between valve gap and the valve body, the diaphragm has the shutoff state that takes place elastic deformation and the sealed cooperation of valve body and correspond the passageway with the shutoff when pressurized, and let out the opening state of back resilience in order to open corresponding passageway at pressure, the valve body is the injection molding, an organic whole is moulded plastics on the valve body and is inlayed and be equipped with the double-screw bolt that is used for with valve gap releasable connection, the double-screw bolt is the metal material, is provided with the. The stud is directly and integrally injected and matched with the nut when in use, so that the valve body is not required to be subsequently processed, and the subsequent processing operation is reduced; the wall thickness of the valve body only needs to meet the structural strength, and the valve body does not need to be made thick.

Description

Diaphragm valve and liquid feeding system using same

Technical Field

The utility model relates to a diaphragm valve and use liquid feeding system of this diaphragm valve.

Background

As a novel feeding mode, the liquid feeding system has many advantages compared with the traditional dry feed feeding, such as the advantages of improving the feed conversion ratio of pigs, reducing the respiratory diseases of pigs, being rich in feed sources, reducing the feed cost, being high in automation degree and the like. Liquid feeding systems generally include a feed delivery tube for delivering liquid feed, and a plurality of valves are typically provided on the feed delivery tube to facilitate delivery of liquid feed to various piggeries.

chinese utility model patent with grant publication number CN205504071U discloses an atmospheric pressure diaphragm valve, including the valve body and through the valve gap of fix with screw on the valve body, press from both sides the dress between valve gap and the valve body and be fixed with the diaphragm, be formed with the cavity between diaphragm and the valve gap, be fixed with the solenoid valve that is used for communicateing high-pressure gas holder and cavity on the valve gap. When the valve is used, when the cavity is ventilated, the diaphragm is forced to elastically deform by gas pressure and is in sealing fit with the valve body, so that the valve body is blocked, the pressure is relieved during air exhaust, the diaphragm rebounds, and the valve body is opened.

For the diaphragm valve, as the valve body is fixedly connected with the valve cover through the screw, the valve body is required to be provided with the threaded hole, firstly, the threaded hole is required to be processed on the valve body, and the subsequent processing is relatively complicated; secondly, have certain requirement to the wall thickness of valve body to guarantee that the screw hole has sufficient bore depth, and in order to guarantee the leakproofness of valve body, the screw hole can not bore thoroughly, causes the valve body thicker like this easily, and the consumptive material is more, and weight is heavier.

SUMMERY OF THE UTILITY MODEL

the utility model aims to provide a diaphragm valve to solve the technical problem that the subsequent processing of the valve body is complicated because the valve body needs to be provided with a threaded hole in the prior art; an object of the utility model is to provide an use liquid feeding system of above-mentioned diaphragm valve to solve and need set up the screw hole on the valve body among the prior art and lead to the more loaded down with trivial details technical problem of follow-up processing of valve body.

in order to achieve the above object, the diaphragm valve of the present invention adopts the following technical solutions:

The diaphragm valve comprises a valve body, wherein at least one channel for fluid circulation is arranged in the valve body, a mounting opening is formed in the side wall of the at least one channel, a valve cover is detachably connected to the mounting opening on the valve body, a diaphragm sheet capable of elastically deforming is clamped and fixed between the valve cover and the valve body, the diaphragm sheet has a plugging state which is matched with the valve body in a sealing mode to correspond to the channel in a plugging mode and an opening state which is matched with the corresponding channel in a rebounding mode after pressure is released, the valve body is an injection molding part, a stud which is detachably connected with the valve cover is embedded in the valve body in an integrated injection molding mode, the stud is made of a metal material, a through hole for the stud to penetrate through is formed in the valve cover, and a nut which is.

The diaphragm valve has the beneficial effects that: because the valve body is an injection molding part and the stud is integrally embedded on the valve body in an injection molding way, the valve cover can be fastened on the valve body by matching with the nut when in use, and the subsequent processing of the valve body is not needed, so that the subsequent processing operation is reduced; meanwhile, as the threaded hole does not need to be processed on the valve body, the wall thickness of the valve body only needs to meet the structural strength, and the valve body is not required to be made very thick, so that the phenomenon that the weight is heavier due to the consumption of excessive materials can be avoided.

Furthermore, in order to meet the requirements of the three-way valve body in specific occasions and facilitate the manufacture of the three-way valve body, the structure is more compact, the valve body is the three-way valve body, the channel in the valve body comprises a through channel and a branch channel connected to the through channel, the mounting port is arranged at the junction of the branch channel and the through channel, and the axis of the branch channel and the axis of the through channel are arranged in a different plane.

Furthermore, in order to meet the requirement of the straight-through valve body in a specific occasion, a channel for the circulation of fluid is arranged in the valve body, and the valve body is a straight-through valve body.

Further, for the convenience diaphragm gets up the passageway shutoff, optimizes the shutoff effect, and the position department that corresponds with the installing port in the valve body is provided with the baffle, goes to the diaphragm on the baffle and is used for being the arcwall face with the sealed complex side of diaphragm.

furthermore, in order to facilitate manufacturing of the valve cover and communication between the valve cover and an external air source, a cavity with variable volume is formed between the diaphragm and the valve cover, a communication port for communicating the external air source with the cavity is formed in the valve cover, the valve cover is also an injection molding part, a metal connector for connecting with the electromagnetic valve is integrally embedded in the valve cover, and the communication port is formed by an inner hole of the metal connector.

In order to achieve the above object, the utility model provides a liquid feeding system adopts following technical scheme:

Liquid feeding system, including conveying pipeline and the diaphragm valve of setting on the conveying pipeline, the diaphragm valve includes the valve body, is equipped with at least one passageway that supplies the liquid fodder circulation in the valve body, has seted up the installing port on the lateral wall of at least one passageway, in installing port department releasable connection have the valve gap on the valve body, but press from both sides the dress between valve gap and the valve body and be fixed with elastic deformation's diaphragm, the diaphragm has the shutoff state that takes place elastic deformation and valve body seal cooperation when pressurized and correspond the passageway with the shutoff and kick-back in order to open the open mode that corresponds the passageway after pressure is let out, the valve body is the injection molding, and an organic whole is moulded plastics on the valve body and is inlayed and be used for the double-screw bolt with valve gap releasable connection, the double-screw bolt is the metal material, is provided with the perforation that.

The technical scheme of the liquid feeding system has the beneficial effects that: because the valve body is an injection molding part and the stud is integrally embedded on the valve body in an injection molding way, the valve cover can be fastened on the valve body by matching with the nut when in use, and the subsequent processing of the valve body is not needed, so that the subsequent processing operation is reduced; meanwhile, as the threaded hole does not need to be processed on the valve body, the wall thickness of the valve body only needs to meet the structural strength, and the valve body is not required to be made very thick, so that the phenomenon that the weight is heavier due to the consumption of excessive materials can be avoided.

Furthermore, in order to meet the requirements of the three-way valve body in specific occasions and facilitate the manufacture of the three-way valve body, the structure is more compact, the valve body is the three-way valve body, the channel in the valve body comprises a through channel and a branch channel connected to the through channel, the mounting port is arranged at the junction of the branch channel and the through channel, and the axis of the branch channel and the axis of the through channel are arranged in a different plane.

Furthermore, in order to meet the requirement of a straight-through valve body in a specific occasion, a channel for flowing the liquid feed is arranged in the valve body, and the valve body is a straight-through valve body.

Further, for the convenience diaphragm gets up the passageway shutoff, optimizes the shutoff effect, and the position department that corresponds with the installing port in the valve body is provided with the baffle, goes to the diaphragm on the baffle and is used for being the arcwall face with the sealed complex side of diaphragm.

Furthermore, in order to facilitate manufacturing of the valve cover and communication between the valve cover and an external air source, a cavity with variable volume is formed between the diaphragm and the valve cover, a communication port for communicating the external air source with the cavity is formed in the valve cover, the valve cover is also an injection molding part, a metal connector for connecting with the electromagnetic valve is integrally embedded in the valve cover, and the communication port is formed by an inner hole of the metal connector.

Drawings

Fig. 1 is a front view of a pneumatic straight-through diaphragm valve in embodiment 1 of the diaphragm valve of the present invention;

Fig. 2 is a plan view of a pneumatic straight-through diaphragm valve in embodiment 1 of the diaphragm valve of the present invention;

Figure 3 is a side view of a pneumatic straight through diaphragm valve in embodiment 1 of the diaphragm valve of the present invention;

FIG. 4 is a perspective view of the valve body of the pneumatic through diaphragm valve shown in FIGS. 1 to 3;

FIG. 5 is a front view of the valve body of the pneumatic through diaphragm valve of FIGS. 1-3;

FIG. 6 is a top view of the valve body of the pneumatic through diaphragm valve of FIGS. 1-3;

FIG. 7 is a side view of the valve body of the pneumatic through diaphragm valve of FIGS. 1-3;

FIG. 8 is a perspective view of a valve cover of the pneumatic through diaphragm valve shown in FIGS. 1 to 3;

FIG. 9 is a front view of a diaphragm of the pneumatic through diaphragm valve of FIGS. 1-3;

FIG. 10 is a top view of a diaphragm of the pneumatic straight through diaphragm valve of FIGS. 1-3;

Fig. 11 is a front view of a pneumatic three-way diaphragm valve in embodiment 2 of the diaphragm valve of the present invention;

Fig. 12 is a plan view of a pneumatic three-way diaphragm valve according to embodiment 2 of the present invention;

Fig. 13 is a side view of a pneumatic three-way diaphragm valve according to embodiment 2 of the present invention;

FIG. 14 is a perspective view of the valve body of the pneumatic three-way diaphragm valve shown in FIGS. 11 to 13;

FIG. 15 is a front view of the valve body of the pneumatic three-way diaphragm valve of FIGS. 11-13.

in the figure: 100. a pneumatic straight-through diaphragm valve; 101. a valve body; 102. a valve cover; 103. a stud; 104. a nut; 105. a metal joint; 106. a partition plate; 107. perforating; 108. perforating; 109. a convex spherical surface; 110. a diaphragm sheet; 200. a pneumatic three-way diaphragm valve; 201. a straight-through pipe; 202. a valve cover; 203. a branch pipe; 204. a metal joint; 205. a stud; 206. a partition plate; 207. a membrane sheet.

Detailed Description

The utility model discloses embodiment 1 of well diaphragm valve is as shown in fig. 1~ 10, and the diaphragm valve in this embodiment is pneumatic through diaphragm valve 100, as shown in fig. 1~3, and pneumatic through diaphragm valve 100 includes valve body 101 and detachable connection's valve gap 102 on valve body 101, and valve body 101 is through valve body, and inside is equipped with the through passageway that supplies the circulation of liquid fodder, and the one end of through passageway is the feed end, the other end is the discharge end. The side wall of the through channel is provided with a mounting opening, and the valve cover 102 is fixed at the mounting opening.

A diaphragm 110 is clamped and fixed between the valve body 101 and the valve cover 102, the diaphragm 110 is made of natural rubber or corrosion-resistant plastics such as polytetrafluoroethylene and the like with good elastic deformation performance, a cavity is formed between the diaphragm 110 and the valve cover 102, and the volume of the cavity is variable.

the utility model provides a valve body 101 and valve gap 102 are the injection molding to valve gap 102 is gone up an organic whole and is inlayed and is equipped with metal joint 105, as shown in fig. 2 and fig. 8, metal joint 105 has the screw hole that can link to each other with the solenoid valve, and the screw hole has constituted the intercommunication mouth of the outside air supply of intercommunication and cavity. When in use, the electromagnetic valve is communicated with an external gas source and is used for ventilating the chamber or exhausting gas in the chamber. When the chamber is ventilated, the diaphragm 110 is pressed to be elastically deformed, and the chamber volume is increased, and when the chamber is exhausted, the diaphragm 110 is rebounded, and the chamber volume is decreased.

A partition plate 106 is provided in the valve body 101 at a position corresponding to the mounting opening, and as shown in fig. 4 and 6, a side surface of the partition plate 106 facing the diaphragm 110 and adapted to be in sealing engagement with the diaphragm 110 is an arc-shaped surface. As shown in fig. 9 and 10, a convex spherical surface 109 is arranged in the middle of the diaphragm 110, a concave spherical surface is arranged on the inner wall of the valve cover 102, when the chamber is not ventilated, the convex spherical surface 109 on the diaphragm 110 is matched with the concave spherical surface on the valve cover 102, so that sufficient opening degree is ensured between the diaphragm 110 and the partition 106, and smooth circulation of liquid feed is ensured. When air is introduced into the chamber, the convex spherical surface 109 on the diaphragm 110 is pressed to generate reverse elastic deformation, and is tightly attached to the arc-shaped surface on the partition plate 106, so that the through passage is blocked, and the valve is closed. When the chamber is vented, the pressure is relieved, the diaphragm 110 rebounds back to its original position, and the valve opens.

As shown in fig. 4 to 7, the valve body 101 of the present invention is integrally injection-molded with four studs 103, the four studs 103 are made of metal, such as carbon steel or aluminum alloy, as shown in fig. 8, the valve cover 102 is provided with a through hole 107 for the stud 103 to pass through, and as shown in fig. 9, the diaphragm sheet 110 is also provided with a through hole 108 for the stud 103 to pass through. In the mounting, first, the diaphragm 110 is inserted into the stud 103 through the through hole 108, then the bonnet 102 is also inserted into the stud 103 through the through hole 107, and finally, the bonnet 102 is fastened to the valve body 101 by screwing the nut 104 and the stud 103, and the diaphragm 110 is interposed and fixed between the two.

because the stud 103 is directly embedded on the valve body 101 in an injection molding manner and can be matched with the nut 104 to fasten the valve cover 102 and the diaphragm 110 on the valve body 101 when in use, compared with the prior art, the subsequent processing of the valve body 101 is not needed, and the subsequent processing operation is reduced; meanwhile, as the threaded hole does not need to be processed on the valve body 101, the wall thickness of the valve body 101 only needs to meet the structural strength, and the valve body is not required to be made thick, so that the phenomenon that the weight is heavy due to the consumption of excessive materials can be avoided.

The utility model discloses embodiment 2 of well diaphragm valve is as shown in fig. 11~ 15, and the diaphragm valve in this embodiment is pneumatic tee bend diaphragm valve 200, includes the valve body equally, is equipped with through passageway and the branch passageway of connection on through passageway in the valve body, consequently sees from the appearance, and the valve body includes through pipe 201 and the bleeder 203 of connection on through pipe 201, and the axis of through pipe 201 sets up with the axis antarafacial of bleeder 203.

The junction of the straight-through pipe 201 and the branched pipe 203 is provided with an installation opening, a valve cover 202 is detachably connected to the installation opening, and the valve cover 202 and the valve body are both injection molded parts. The valve cover 202 has the same structure as the valve cover 102 of embodiment 1, and a metal joint 204 is integrally embedded in the valve cover 202, and a diaphragm 207 is also interposed and fixed between the valve body and the valve cover 202, and the diaphragm 207 has the same structure as the diaphragm 110 of embodiment 1.

in addition, similarly, a partition plate 206 is disposed in the valve body at a position corresponding to the mounting opening, a side surface of the partition plate 206 facing the diaphragm 207 and configured to be in sealing fit with the diaphragm 207 is an arc-shaped surface, and a fitting principle of the diaphragm 207 and the partition plate 206 is the same as that in embodiment 1, and is not repeated herein. In addition, four metal studs 205 are also integrally molded and embedded on the valve body, and the connection mode of the valve body and the valve cover 202 is the same as that of embodiment 1, and repeated description is omitted here.

Different from the embodiment 1, the diaphragm 207 controls the on-off of the branch pipe 203, and the straight-through channel is not affected no matter the branch channel in the branch pipe 203 is opened or closed, the diaphragm valve is suitable for the situation that the liquid feeding system supplies food to each piggery, the branch pipe 203 leads to a single piggery, the opening and closing of the diaphragm valve can be controlled to control whether the corresponding piggery is supplied with food, and the straight-through channel is a main food supply channel.

in other embodiments of the diaphragm valve, the diaphragm valve may also be used in other technical fields, such as water supply.

In other embodiments of diaphragm valves, the valve cover may not be an injection molded part, but rather may be machined from a metallic material, in which case a threaded hole may be machined directly into the valve cover to form the communication port.

In other embodiments of the diaphragm valve, the diaphragm valve may not be pneumatically operated, i.e. the valve cover is not provided with a communication port, but a manual pressing mechanism for manually pressing and deforming the diaphragm is provided on the valve cover, such as a hand wheel, a valve rod and a valve flap disclosed in patent document CN 207715817U.

In other embodiments of the diaphragm valve, when the diaphragm valve is a three-way diaphragm valve, a mounting opening may be provided on the side wall of the through passage as required, and the valve cover and the diaphragm may be mounted at the mounting opening.

In other embodiments of the diaphragm valve, the diaphragm valve may also be a four-way or five-way diaphragm valve, and of course, in this case, a mounting opening may be formed in the corresponding side wall of the channel as required, and the valve cover and the diaphragm may be mounted at the mounting opening.

in other embodiments of the diaphragm valve, the valve body may not have a partition plate, and the diaphragm directly and sealingly engages the inner wall of the valve body.

The utility model discloses embodiment of well liquid feeding system: the diaphragm valve is the same as that in any one of the embodiments, and repeated description is omitted here.

Claims (10)

1. Diaphragm valve, including the valve body, be equipped with at least one passageway that supplies the fluid circulation in the valve body, seted up the installing port on the lateral wall of at least one passageway, in installing port department releasable connection valve gap on the valve body, but press from both sides the dress between valve gap and the valve body and be fixed with elastic deformation's diaphragm, the diaphragm has the shutoff state that takes place elastic deformation and valve body seal fit when pressurized and corresponds the passageway with the shutoff and kick-back in order to open the opening state that corresponds the passageway after pressure is let out, its characterized in that: the valve body is an injection molding part, a stud which is detachably connected with the valve cover is integrally injection-molded and embedded on the valve body, the stud is made of metal, a through hole for the stud to pass through is formed in the valve cover, and a nut used for fastening the valve cover on the valve body is connected to the stud.

2. The diaphragm valve of claim 1, wherein: the valve body is a three-way valve body, the channel in the valve body comprises a through channel and a branch channel connected to the through channel, the mounting opening is arranged at the junction of the branch channel and the through channel, and the axis of the branch channel and the axis of the through channel are arranged in a different plane.

3. The diaphragm valve of claim 1, wherein: the valve body is internally provided with a channel for the fluid to circulate, and the valve body is a straight-through valve body.

4. The diaphragm valve according to any one of claims 1 to 3, wherein: the position department that corresponds with the installing port in the valve body is provided with the baffle, and the side towards the diaphragm on the baffle and be used for with diaphragm seal fit is the arcwall face.

5. The diaphragm valve according to any one of claims 1 to 3, wherein: a cavity with variable volume is formed between the diaphragm and the valve cover, a communicating port for communicating an external air source with the cavity is arranged on the valve cover, the valve cover is also an injection molding part, a metal connector for connecting with the electromagnetic valve is integrally embedded on the valve cover, and the communicating port is formed by an inner hole of the metal connector.

6. Liquid feeding system, including conveying pipeline and the diaphragm valve of setting on the conveying pipeline, the diaphragm valve includes the valve body, is equipped with at least one passageway that supplies the circulation of liquid fodder in the valve body, has seted up the installing port on the lateral wall of at least one passageway, in installing port department releasable connection have the valve gap on the valve body, but press from both sides the dress between valve gap and the valve body and be fixed with elastic deformation's diaphragm, the diaphragm has the shutoff state that takes place elastic deformation and the sealed cooperation of valve body when pressurized and corresponds the passageway with the shutoff and kick-back in order to open the opening state that corresponds the passageway after pressure is let out, its characterized in that: the valve body is an injection molding part, a stud which is detachably connected with the valve cover is integrally injection-molded and embedded on the valve body, the stud is made of metal, a through hole for the stud to pass through is formed in the valve cover, and a nut used for fastening the valve cover on the valve body is connected to the stud.

7. The liquid feeding system of claim 6, wherein: the valve body is a three-way valve body, the channel in the valve body comprises a through channel and a branch channel connected to the through channel, the mounting opening is arranged at the junction of the branch channel and the through channel, and the axis of the branch channel and the axis of the through channel are arranged in a different plane.

8. the liquid feeding system of claim 6, wherein: the valve body is internally provided with a channel for the liquid feed to flow through, and the valve body is a straight-through valve body.

9. a liquid feeding system according to any one of claims 6 to 8, wherein: the position department that corresponds with the installing port in the valve body is provided with the baffle, and the side towards the diaphragm on the baffle and be used for with diaphragm seal fit is the arcwall face.

10. A liquid feeding system according to any one of claims 6 to 8, wherein: a cavity with variable volume is formed between the diaphragm and the valve cover, a communicating port for communicating an external air source with the cavity is arranged on the valve cover, the valve cover is also an injection molding part, a metal connector for connecting with the electromagnetic valve is integrally embedded on the valve cover, and the communicating port is formed by an inner hole of the metal connector.