阅读说明：本技术 快接排气阀及包括其的排气阀组件 (Connect exhaust valve soon and include its exhaust valve subassembly ) 是由 赵磊 尹同耀 高杰章 乔永健 于 2020-04-13 设计创作，主要内容包括：本发明公开了一种快接排气阀及包括其的排气阀组件。快接排气阀包括连接部、排气部和控制机构。所述连接部具有流体腔,所述连接部开设有都与所述流体腔相连通的快接孔和流通孔,所述快接孔用于供导管配合地插入,流体可以经导管进入流体腔内,并通过流通孔进入计量泵或其他元器件内,可以理解的是,在其他的某些实施例中,也可以使得流体沿着相反的方向流动。导管可以十分方便地插入快接孔中,实现快接的效果。排气部包括与所述流体腔相连通的排气孔；所述控制机构用于控制所述排气孔的开闭。利用控制机构可以控制排气孔的开闭,排气孔正常情况下处于关闭状态,当需要排气时,打开排气孔,快接排气阀所接入的液路系统中的气体可以从排气孔排出。(The invention discloses a quick-connection exhaust valve and an exhaust valve assembly comprising the same. The quick-connection exhaust valve comprises a connecting part, an exhaust part and a control mechanism. The connecting part is provided with a fluid cavity, the connecting part is provided with a quick connection hole and a flow hole which are communicated with the fluid cavity, the quick connection hole is used for being inserted by a guide pipe in a matching way, fluid can enter the fluid cavity through the guide pipe and enter a metering pump or other components through the flow hole, and it can be understood that in some other embodiments, the fluid can also flow in the opposite direction. The conduit can be conveniently inserted into the quick-connection hole, and the effect of quick connection is realized. The exhaust part comprises an exhaust hole communicated with the fluid cavity; the control mechanism is used for controlling the opening and closing of the exhaust hole. Utilize control mechanism can control the switching of exhaust hole, the exhaust hole is in the closed condition under the normal condition, when needs exhaust, opens the exhaust hole, connects the gas in the liquid way system that the discharge valve inserts soon and can follow the exhaust hole and discharge.)

1. A quick connect exhaust valve, comprising:

the connecting part is provided with a fluid cavity, the connecting part is provided with a quick connection hole and a circulation hole which are communicated with the fluid cavity, and the quick connection hole is used for the conduit to be inserted in a matched manner;

an exhaust portion including an exhaust hole communicating with the fluid chamber;

and the control mechanism is used for controlling the opening and closing of the exhaust hole.

2. The quick connect exhaust valve of claim 1 wherein said quick connect orifice is a tapered orifice, said quick connect orifice having an inner diameter that increases in a direction away from said fluid chamber.

3. The quick connect exhaust valve according to claim 1 wherein the inner wall of said quick connect aperture is provided with a first step at an end adjacent said fluid chamber.

4. The quick connect vent valve of claim 3 wherein the location where the vent hole meets the fluid chamber is a first location and the first step is located between the first location and the opening of the quick connect aperture.

5. The quick connect exhaust valve of claim 1 wherein said connector is cylindrical and said quick connect aperture is located at an end of said connector.

6. The quick connect exhaust valve of claim 5 wherein said flow opening is located at an end of said connector portion opposite said quick connect aperture.

7. The quick connect exhaust valve of claim 6 wherein the exterior of the connection is provided with a second step between the exhaust portion and the opening of the flow opening.

8. The quick connect exhaust valve according to claim 1 wherein said control mechanism includes a sealing member movable in directions toward and away from said exhaust port.

9. The quick connect exhaust valve according to claim 8 wherein said control mechanism further comprises a knob, said sealing element being fixedly attached to said knob, said knob being threadably connected to said exhaust portion such that rotation of said knob moves said sealing element toward or away from said exhaust opening.

10. A vent valve assembly comprising the quick connect vent valve of any of claims 1-9 and an adapter having an adapter through-hole into which the connecting portion is at least partially inserted such that the flow aperture is in communication with the adapter through-hole.

11. The vent valve assembly of claim 10, wherein an end of the adapter distal from the quick connect vent valve is provided with an annular retaining flange.

Technical Field

The invention relates to the field of exhaust valves, in particular to a quick-connection exhaust valve and an exhaust valve assembly comprising the same.

Background

The fluid circuit system may accumulate air therein during use, which may affect the performance settings of the fluid circuit system and cause malfunctions. Exhaust valves are therefore often provided in the fluid circuit system in order to remove air that may be trapped in the system. Most of the existing exhaust valves are connected into a liquid path system through threaded joints, and the installation is inconvenient.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a quick-connection exhaust valve and an exhaust valve assembly comprising the same.

The invention solves the technical problems through the following technical scheme:

a quick connect exhaust valve characterized in that it comprises:

the connecting part is provided with a fluid cavity, the connecting part is provided with a quick connection hole and a circulation hole which are communicated with the fluid cavity, and the quick connection hole is used for the conduit to be inserted in a matched manner;

an exhaust portion including an exhaust hole communicating with the fluid chamber;

and the control mechanism is used for controlling the opening and closing of the exhaust hole.

In this scheme, the pipe can insert fast in the hole very conveniently, realizes the effect of connecing soon, and fluid can get into the fluid intracavity through the pipe to in getting into measuring pump or other components and parts through the circulation hole, utilize control mechanism can control the switching in exhaust hole, the exhaust hole is in the closed condition under the normal condition, when needs exhaust, opens the exhaust hole, and the gas in the liquid way system that connects the discharge valve soon and inserts can be followed the exhaust hole and discharged. Therefore, the quick-connection exhaust valve has the quick-connection function and the exhaust function at the same time, can be conveniently connected into the liquid path system by utilizing the quick-connection function, and can also maintain the flow and the pressure in the liquid path system by utilizing the exhaust function.

Preferably, the quick-connection hole is a tapered hole, and the inner diameter of the quick-connection hole is larger and larger along the direction away from the fluid cavity.

In the scheme, the quick connection hole is a conical hole, so that the deeper the conduit is inserted into the quick connection hole, the better the sealing between the conduit and the quick connection hole is, and the leakage at the quick connection hole is prevented.

Preferably, one end of the inner wall of the quick connection hole, which is close to the fluid cavity, is provided with a first step.

In this scheme, first step can play hard spacing effect to the pipe, prevents that the pipe from inserting in the hole soon too much.

Preferably, the position where the exhaust hole is connected with the fluid cavity is a first position, and the first step is located between the first position and the opening of the quick connection hole.

In this scheme, adopt above-mentioned mode of setting up, first step can avoid the pipe to insert and connect the hole too deeply soon to block up the exhaust hole, first step is guaranteed to connect discharge valve can normally exhaust soon.

Preferably, the connecting part is cylindrical, and the quick-connection hole is located at an end of the connecting part.

In the scheme, the shape of the connecting part is consistent with that of the conduit, the appearance is more harmonious, and the conduit can be inserted into the quick-connection hole from one end part of the connecting part.

Preferably, the flow hole is located at an end of the connection part different from the quick connection hole.

In this scheme, the fast hole and the circulation hole are located the both ends of connecting portion, and liquid flows in from the one end of connecting portion, flows out from the other end of connecting portion.

Preferably, a second step is provided outside the connection portion, and the second step is located between the exhaust portion and the opening of the flow hole.

In this scheme, the one end that connecting portion are close to the opening can be inserted and establish in the components and parts of being connected in the liquid route system to make the opening insert in the liquid route system, wherein the second step can play spacing effect.

Preferably, the control mechanism includes a sealing member movable in directions towards and away from the vent hole.

In this scheme, when the sealing member kept away from the exhaust hole, the gas in the fluid chamber can be discharged through the exhaust hole, when the sealing member was close to and was supported in the exhaust hole, the exhaust hole then was in encapsulated situation.

Preferably, the control mechanism further comprises a knob, the sealing element is fixedly connected to the knob, and the knob is in threaded connection with the exhaust part, so that the sealing element is driven to move close to or away from the exhaust hole when the knob is rotated.

In this scheme, because knob and exhaust portion threaded connection, when consequently rotatory knob, the displacement can take place for the knob to drive the sealing member and be close to or keep away from the exhaust hole motion, thereby realize the switching in control exhaust hole.

An exhaust valve assembly is characterized by comprising the quick-connection exhaust valve and an adapter, wherein the adapter is provided with an adapter through hole, and the connecting part is at least partially inserted into the adapter through hole so as to enable the through hole to be communicated with the adapter through hole.

In this scheme, connect the discharge valve soon and can connect in the adaptor to meet with other liquid way components and parts (such as measuring pump) through the adaptor.

Preferably, one end of the adaptor, which is far away from the quick-connection exhaust valve, is provided with an annular fixing flange.

In this scheme, the adaptor can utilize mounting flange to be fixed mutually with the measuring pump to make and connect discharge valve and measuring pump realization relatively fixed soon.

The positive progress effects of the invention are as follows:

the quick-connection exhaust valve is provided with the quick-connection hole, the guide pipe can be conveniently inserted into the quick-connection hole, the quick-connection effect is realized, fluid can enter the fluid cavity through the guide pipe and enter the metering pump or other components through the circulation hole, the control mechanism can control the opening and closing of the exhaust hole, the exhaust hole is in a closed state under the normal condition, when the exhaust is needed, the exhaust hole is opened, and the gas in a liquid path system accessed by the quick-connection exhaust valve can be exhausted from the exhaust hole. Therefore, the quick-connection exhaust valve has the quick-connection function and the exhaust function at the same time, can be conveniently connected into the liquid path system by utilizing the quick-connection function, and can also maintain the flow and the pressure in the liquid path system by utilizing the exhaust function. The exhaust valve component can be conveniently connected with other liquid circuit components by using the adapter.

Drawings

FIG. 1 is a schematic structural diagram of a vent valve assembly according to an embodiment of the invention.

FIG. 2 is a schematic diagram of the internal structure of a vent valve assembly according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an exhaust valve assembly according to an embodiment of the present invention when the exhaust valve assembly is connected to a metering pump.

Fig. 4 is a schematic diagram of the internal structure of the exhaust valve assembly when the exhaust valve assembly is connected to the metering pump according to an embodiment of the present invention.

Description of the reference numerals

Quick-connect exhaust valve 10

Connecting part 1

Fluid chamber 11

Quick-connect hole 12

Flow holes 13

Insertion part 14

First step 15

Second step 16

Exhaust part 2

Exhaust hole 21

Exhaust passage 22

Control mechanism 3

Sealing element 31

Knob 32

Adapter 4

Adapting through hole 41

Mounting flange 42

Metering pump 5

Fixing nut 51

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

Fig. 1 and 2 illustrate a quick-connect exhaust valve 10 and an exhaust valve assembly including the same according to an embodiment of the present invention.

The quick-connection exhaust valve 10 comprises a connecting part 1, an exhaust part 2 and a control mechanism 3. The connecting part 1 is provided with a fluid cavity 11, the connecting part 1 is provided with a quick connection hole 12 and a circulation hole 13 which are both communicated with the fluid cavity 11, wherein the quick connection hole 12 is used for being inserted with a conduit in a matching way, and fluid can enter the fluid cavity 11 through the conduit and enter the metering pump 5 or other components through the circulation hole 13, and it can be understood that in some other embodiments, the fluid can also flow in the opposite direction. The conduit can be inserted into the quick-connect hole 12 very conveniently, and the effect of quick connection is realized. The conduit and the quick-connect hole 12 can be bonded by adhesive.

The exhaust part 2 includes an exhaust hole 21 communicating with the fluid chamber 11; the control mechanism 3 controls the opening and closing of the exhaust hole 21. The control mechanism 3 can control the opening and closing of the exhaust hole 21, the exhaust hole 21 is normally in a closed state, when the exhaust is needed, the exhaust hole 21 is opened, and the gas in the liquid path system connected with the quick-connection exhaust valve 10 can be exhausted from the exhaust hole 21. Therefore, the quick-connection exhaust valve 10 of the present embodiment has both a quick-connection function and an exhaust function, and can be conveniently connected to the liquid path system by using the quick-connection function, and can also maintain the flow rate and pressure in the liquid path system by using the exhaust function. The exhaust part 2 is also provided with an exhaust channel 22, and the gas exhausted by the exhaust hole 21 can be exhausted out of the quick-connection exhaust valve 10 through the exhaust channel 22.

Preferably, the quick connection hole 12 can be configured to have multiple specifications such as DN15, DN25, DN32, and the like, that is, the common type of the exhaust part 2 can be used in a whole series of products, which not only facilitates maintenance, but also helps customers to effectively control the use cost.

Referring to fig. 4, the quick-connect hole 12 is preferably a tapered hole, and the inner diameter of the quick-connect hole 12 is increased in a direction away from the fluid chamber 11. Since the quick connect hole 12 is a tapered hole, the deeper the conduit is inserted into the quick connect hole 12, the better the seal between the conduit and the quick connect hole 12, preventing leakage at the quick connect hole 12.

One end of the inner wall of the quick connection hole 12 near the fluid chamber 11 is provided with a first step 15. The first step 15 can act as a hard stop for the conduit, preventing it from being inserted too far into the quick connect hole 12. As a preferred embodiment, since the quick-connect hole 12 is a tapered hole, by controlling the size of the quick-connect hole 12 (for example, setting the inner diameter of the quick-connect hole 12 close to the first step 15 to be smaller), the pipe is compressed and deformed sufficiently before contacting the first step 15, and cannot be inserted into the quick-connect hole 12, so as to ensure the sealing between the pipe and the quick-connect hole 12.

The position where the exhaust hole 21 meets the fluid chamber 11 is a first position, and preferably, the first step 15 is located between the first position and the opening of the quick-connect hole 12. With such a configuration, the first step 15 can prevent the conduit from being inserted into the quick connection hole 12 too deeply to block the exhaust hole 21, and the first step 15 ensures that the quick connection exhaust valve 10 can normally exhaust.

In the present embodiment, the connecting portion 1 has a cylindrical shape, and the quick-connection hole 12 is located at an end portion of the connecting portion 1. The shape of the connector 1 is consistent with the shape of the catheter, the appearance is harmonious, and the catheter can be inserted into the quick-connect hole 12 from one end of the connector 1. The flow hole 13 is located at an end of the connection part 1 different from the snap hole 12. The quick connection hole 12 and the flow hole 13 are located at both ends of the connection part 1, and liquid flows in from one end of the connection part 1 and flows out from the other end of the connection part 1. The quick-connect hole 12 is arranged coaxially with the connection portion 1.

The outside of the connection part 1 is provided with a second step 16, the second step 16 being located between the exhaust part 2 and the opening of the flow hole 13. One end of the connecting part 1 close to the circulation hole 13 can be inserted into a component connected to the liquid path system, so that the circulation hole 13 is connected into the liquid path system, and the second step 16 can play a role in limiting. In this embodiment, the one end portion of the connecting portion 1 near the flow hole 13 is an insertion portion 14, and the outer diameter of the insertion portion 14 is smaller than the outer diameter of the remaining portion of the communication portion, thereby forming the second step 16.

The control mechanism 3 includes a sealing member 31, and the sealing member 31 is movable in directions close to and away from the discharge hole 21. When the sealing member 31 is far away from the exhaust hole 21, the gas in the fluid chamber 11 can be exhausted through the exhaust hole 21, and when the sealing member 31 is close to and against the exhaust hole 21, the exhaust hole 21 is in a sealing state. Preferably, the material of the sealing member 31 is rubber or silicone.

The control mechanism 3 further comprises a knob 32, the sealing member 31 is fixedly connected to the knob 32, and the knob 32 is in threaded connection with the exhaust portion 2, so that when the knob 32 is rotated, the sealing member 31 is driven to move close to or away from the exhaust hole 21. Because the knob 32 is connected with the exhaust part 2 in a threaded manner, when the knob 32 is rotated, the knob 32 can be displaced, so that the sealing element 31 is driven to move close to or far away from the exhaust hole 21, and the exhaust hole 21 is controlled to be opened and closed.

The present embodiment further provides an exhaust valve assembly, which includes the aforementioned quick-connection exhaust valve 10, and an adaptor 4, wherein the adaptor 4 has an adaptor through hole 41, and the connecting portion 1 is at least partially inserted into the adaptor through hole 41, so that the flow hole 13 is communicated with the adaptor through hole 41. In the present embodiment, the insertion portion 14 of the connection portion 1 may be inserted into the through-hole 41, and the connection portion 1 and the through-hole 41 may be bonded with an adhesive.

As shown in fig. 3 and 4, the quick-connect vent valve 10 may be connected to the adaptor 4 and connected to other fluid components (e.g., the metering pump 5) via the adaptor 4.

The end of the adapter 4 remote from the quick-connection exhaust valve 10 is provided with an annular fixing flange 42. The adaptor 4 can be fixed with the metering pump 5 by using the fixing flange 42, as shown in fig. 4, the fixing nut 51 of the metering pump 5 can lock the adaptor 4 by using the fixing flange 42, so that the quick-connection exhaust valve 10 and the metering pump 5 are relatively fixed.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.