CN208596641U - Pressure switch - Google Patents

Abstract

The application discloses a kind of pressure switch, and the pressure switch includes lid, pressing plate, first annular and diaphragm；The lid includes the first lid and the second lid and fastens the accommodating cavity formed by first lid and the second lid；The pressing plate, first annular and the diaphragm are set between first lid and second lid, wherein, the pressing plate is arranged close to first lid side, the diaphragm is arranged close to second lid side, described first annular is set between the pressing plate and the diaphragm, and mutually supports with the pressing plate and the diaphragm；The diaphragm includes the sunk structure for being directed away from first lid side recess, and the sunk structure edge extends outward is equipped with ring structure.The application provides a kind of pressure switch, it is intended to avoid in pressure switch diaphragm because welded seal it is unstable caused by leakage problem.

Description

Pressure switch

Technical field

This application involves switching technique field more particularly to a kind of pressure switches.

Background technique

Currently, pressure switch is mainly connected and sealed using the mode of argon arc welding, and argon arc welding leakage is pressure switch The great difficulty of increased quality.In arc welding process, diaphragm be easy to be damaged in local surfaces welding section it is defective, into And welding leakage is formed, and since the recessive defect such as diaphragm edge oxidation and rusting, little damage is not easy to detect at the first time, It is very cumbersome so as to cause the leak detection work of pressure switch, reduce reliability and convenience that pressure switch uses.

Utility model content

The main purpose of the application is to provide a kind of pressure switch, it is intended to avoid in pressure switch diaphragm because of welded seal not Leakage problem caused by stabilization.

To achieve the above object, present applicant proposes a kind of pressure switch, the pressure switch includes lid, pressing plate, and One ring segment and diaphragm；The lid includes the first lid and the second lid and is fastened by first lid and the second lid The accommodating cavity of formation；The pressing plate, first annular and the diaphragm are set to first lid and described second Between lid, wherein the pressing plate is arranged close to first lid side, and the diaphragm is set close to second lid side It sets, described first annular is set between the pressing plate and the diaphragm, and mutually supports with the pressing plate and the diaphragm It holds；The diaphragm includes the sunk structure for being directed away from first lid side recess, and the sunk structure edge is outward Extend and is equipped with ring structure.

Optionally, the first annular outer diameter is equal with the diaphragm diameter.

Optionally, the first annular internal diameter is greater than or equal to the internal diameter of the ring structure.

Optionally, the pressing plate offers through-hole, and the pressure switch further includes push rod, and the push rod is through described logical Hole, and be set to the diaphragm and deviate from second lid side, the push rod supports the sunk structure.

Optionally, the push rod is through described first annular setting.

Optionally, described first annular, the pressing plate and the diaphragm are fixedly connected.

Optionally, the pressure switch further includes the second ring segment, and second ring segment is contained in the accommodating cavity, And it is set to the diaphragm and deviates from the first annular side.

Optionally, the outer diameter of second ring segment is equal with the diaphragm diameter.

Optionally, the internal diameter of second ring segment is greater than or equal to the internal diameter of the ring structure.

Optionally, second ring segment is fixedly connected with second cover edge and the diaphragm.

In the technical solution that the application proposes, the pressure switch includes lid, pressing plate, first annular and diaphragm, The lid includes the first lid and the second lid, and first lid and second lid fasten to form accommodating cavity.It is described Pressing plate, first annular and the diaphragm are set between first lid and second lid, wherein the pressure Plate is arranged close to first lid side, and the diaphragm is arranged close to second lid side, and described first annular sets Between the pressing plate and the diaphragm.It is described when defect, which occurs, in the diaphragm edge welding region welding leakage occurs First annular supports the pressing plate and the diaphragm, and welds jointly with the pressing plate and the diaphragm, to solve The diaphragm causes leakage problem due to welding defect.

Detailed description of the invention

In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the schematic cross-sectional view that the application pressure switch includes first annular；

Fig. 2 is the schematic cross-sectional view that the application pressure switch includes first annular and the second ring segment；

Drawing reference numeral explanation:

The embodiments will be further described with reference to the accompanying drawings for realization, functional characteristics and the advantage of the application purpose.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description, it is clear that described embodiment is only a part of the embodiment of the application, instead of all the embodiments.Base Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, shall fall in the protection scope of this application.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present application In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should When particular pose changes, then directionality instruction also correspondingly changes correspondingly.

In addition, the description for being such as related to " first ", " second " in this application is used for description purposes only, and should not be understood as Its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ", The feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present application, " multiples' " contains Justice is at least two, such as two, three etc., unless otherwise specifically defined.

In this application unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense, For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral；It can be mechanical connection, be also possible to Electrical connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in this application.

It in addition, the technical solution between each embodiment of the application can be combined with each other, but must be general with this field Based on logical technical staff can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve this The combination of technical solution is not present, also not this application claims protection scope within.

The application proposes a kind of pressure switch.

Fig. 1 is please referred to, in an embodiment of the application pressure switch, the pressure switch includes lid 10, pressing plate 20, First annular 30 and diaphragm 40；The lid 10 is including the first lid 11 and the second lid 12 and by first lid 11 and second lid 12 fasten formed accommodating cavity；The pressing plate 20, first annular 30 and the diaphragm 40 are set to Between first lid 11 and second lid 12, wherein the pressing plate 20 is set close to 11 side of the first lid It sets, the diaphragm 40 is arranged close to 12 side of the second lid, and described first annular 30 is set to the pressing plate 20 and institute It states between diaphragm 40, and is mutually supported with the pressing plate 20 and the diaphragm 40；The diaphragm 40 is described including being directed away from The sunk structure of first lid, 11 side recess, the sunk structure edge extends outward is equipped with ring structure.

In the technical solution that the application proposes, the pressure switch includes lid 10, pressing plate 20, first annular 30 and Diaphragm 40, the lid 10 include the first lid 11 and the second lid 12, and first lid 11 is detained with second lid 12 Conjunction forms accommodating cavity.The pressing plate 20, first annular 30 and the diaphragm 40 are set to first lid 11 and institute It states between the second lid 12, wherein the pressing plate 20 is arranged close to 11 side of the first lid, and the diaphragm 40 is close to institute The setting of 12 side of the second lid is stated, described first annular 30 is set between the pressing plate 20 and the diaphragm 40.When described When defect appearance welding leakage occurs in 40 edge welding region of diaphragm, described first annular 30 supports the pressing plate 20 and institute It states diaphragm 40, and is welded jointly with the pressing plate 20 and the diaphragm 40, to solve the diaphragm 40 due to welding defect Cause leakage problem.

Further, each component connection type of pressure switch is mainly described first annular 30 and institute in the prior art Pressing plate 20 is stated to be welded, but during the connection process, leakage problem can occur because welding situation is bad, pass through what is added Described first annular 30, optionally, first annular 30 outer diameter is equal with 40 diameter of diaphragm, makes described first Ring segment 30, when welding situation is bad, can lead to close between gapless installation and the pressing plate 20 and the diaphragm 40 The leakage part of the diaphragm 40 can be filled up by crossing described first annular 30 added, avoid the pressing plate 20 and institute It states and continues leakage problem occur between diaphragm 40.

Further, in one embodiment, since the diaphragm 40 is the disk knot far from accommodating cavity side recess Structure, in order to guarantee activity space of the diaphragm 40 in the accommodating cavity, specifically, second lid 12 also has direction Recess far from 11 side of the first lid setting, the ring structure are connect with described first annular 30, while in order to Inhibition will not be generated to the fluid in the accommodating cavity by guaranteeing described first annular 30, be arranged described first annular 30 Internal diameter it is equal with the internal diameter of the ring structure, reduce the obstruction of the first annular 30 pairs diaphragms 40.

Further, in order to improve the help of described first annular 30 pairs 40 sealing performances of diaphragm, specifically, can It is set between the pressing plate 20 and the lid 10 with being arranged multiple described first annular 30, passes through multiple first rings The combined mode of shape piece 30 reduces a possibility that diaphragm 40 leakage.

Further, the pressing plate 20 offers through-hole, and the pressure switch further includes push rod 60, and the push rod 60 runs through The through-hole, and be set to the diaphragm 40 and deviate from 12 side of the second lid, the push rod 60 supports the sunk structure.Tool In body embodiment, the push rod 60 is held in the sunk structure of the diaphragm 40, and through the described of the pressing plate 20 Through-hole, the diaphragm 40 push the push rod 60 according to the pressure born, and the push rod 60 is under the promotion of the diaphragm 40 It is mobile to the direction far from 12 side of the second lid.

Further, the push rod 60 is through described first annular 30 setting.In specific embodiment, the push rod 60 Through first annular 30 centre bore, and guarantee that with described first annular 30 opposite move can occur for the push rod 60 Dynamic, described first annular 30 centre bore aperture will not be to the mobile generation inhibition of the push rod 60.

Further, in order to guarantee welding effect, described first annular 30, the pressing plate 20 and the diaphragm 40 are solid Fixed connection.In specific embodiment, described first annular 30, the pressing plate 20 and the diaphragm 40, which pass through, to be welded and fixed Mode is combined into one formula structure, to avoid depositing between described first annular 30, the pressing plate 20 and the diaphragm 40 In leak source, the pressure switch is caused to fail.

Referring to figure 2., further, it is separate usually not only to come across the diaphragm 40 for the defect problem of the diaphragm 40 The surface of second lid, 12 side there is also the surface in the diaphragm 40 close to 12 side of the second lid, when When defect problem occurs in performance of the diaphragm 40 close to 12 side of the second lid, caused to reduce the defect problem Leakage influence, the pressure switch can be arranged between the diaphragm 40 and second lid 12 it is described second annular Piece 50 makes the second ring segment 50 be adapted to the diaphragm 40 close to the side of the diaphragm 40 by adding the second ring segment 50 Defect problem, the side far from the diaphragm 40 are adapted to the ring structure of second lid 12.

Further, the outer diameter of second ring segment 50 is equal with 40 diameter of diaphragm, makes second ring segment 50, when welding situation is bad, can pass through close between gapless installation and second lid 12 and the diaphragm 40 Second ring segment 50 added can fill up the leakage part of the diaphragm 40, avoid second lid 12 with Continue leakage problem occur between the diaphragm 40.

Further, the ring structure is connect with second ring segment 50, while in order to guarantee second annular Piece 50 will not generate inhibition to the fluid in the accommodating cavity, and the internal diameter that second ring segment 50 is arranged is greater than or equal to The internal diameter of the ring structure, to avoid second ring segment 50 to the obstruction of the diaphragm 40.

Further, second ring segment 50, the pressing plate 20 and the diaphragm 40 are fixedly connected.Specific embodiment party In formula, second ring segment 50, the pressing plate 20 and the diaphragm 40 are combined into one formula by way of being welded and fixed Structure leads to the pressure to avoid between second ring segment 50, the pressing plate 20 and the diaphragm 40 that there are leak sources Power switch failure.

It further, optionally can to the help of 40 sealing performance of diaphragm in order to improve second ring segment 50 It is set between the pressing plate 20 and the lid 10 so that multiple second ring segments 50 are arranged, passes through multiple second rings The combined mode of shape piece 50 lowers a possibility that diaphragm 40 leakage.

In one embodiment, the second lid 12 of the pressure switch is connected with external pipe, in the external pipe Fluid enters the accommodating space between second lid 12 and the diaphragm 40, and generates pressure to the diaphragm 40；It is described The push rod 60 in pressure switch offsets with the diaphragm 40, and elastic shape occurs under the effect of the pressure for the diaphragm 40 Become, and drives the push rod 60 mobile to the side far from second lid 12；The push rod 60 is far from second lid 12 one end is held in connecting rod 90, and described 90 one end of connecting rod is fixedly connected with first pipe 70, and the other end and valve 100 connect It connects, when mobile to the side far from second lid 12 when the push rod 60, the connecting rod 90 is branch with the push rod 60 Point drives the valve 100 to open under the action of lever, so that first pipe 70 and second pipe 80 be made to be connected.Work as diaphragm 40 when elastic deformation not occurring, and the connecting rod 90 is unable to drive the valve 100 and opens, at this time the first pipe 70 and institute It states second pipe 80 and is in non-interconnected state.

The foregoing is merely preferred embodiment of the present application, are not intended to limit the scope of the patents of the application, all at this Under the inventive concept of application, using equivalent structure transformation made by present specification and accompanying drawing content, or directly/use indirectly In the scope of patent protection that other related technical areas are included in the application.

Claims (10)

1. a kind of pressure switch, which is characterized in that the pressure switch includes lid, pressing plate, first annular and diaphragm；Institute Lid is stated to include the first lid and the second lid and fasten the accommodating cavity formed by first lid and the second lid；

The pressing plate, first annular and the diaphragm are set between first lid and second lid, Wherein, the pressing plate is arranged close to first lid side, and the diaphragm is arranged close to second lid side, and described the One ring segment is set between the pressing plate and the diaphragm, and is mutually supported with the pressing plate and the diaphragm；The film Piece includes the sunk structure for being directed away from first lid side recess, and the sunk structure edge extends outward is equipped with ring Shape structure.

2. pressure switch as described in claim 1, which is characterized in that the first annular outer diameter and the diaphragm diameter It is equal.

3. pressure switch as described in claim 1, which is characterized in that the first annular internal diameter is greater than or equal to described The internal diameter of ring structure.

4. pressure switch as described in claim 1, which is characterized in that the pressing plate offers through-hole, and the pressure switch is also Including push rod, the push rod runs through the through-hole, and is set to the diaphragm and deviates from second lid side, and the push rod supports The sunk structure.

5. pressure switch as claimed in claim 4, which is characterized in that the push rod is through described first annular setting.

6. pressure switch as described in claim 1, which is characterized in that described first annular, the pressing plate and the film Piece is fixedly connected.

7. pressure switch as described in claim 1, which is characterized in that the pressure switch further includes the second ring segment, described Second ring segment is contained in the accommodating cavity, and is set to the diaphragm and is deviated from the first annular side.

8. pressure switch as claimed in claim 7, which is characterized in that the outer diameter of second ring segment and the diaphragm diameter It is equal.

9. pressure switch as claimed in claim 7, which is characterized in that the internal diameter of second ring segment is greater than or equal to described The internal diameter of ring structure.

10. pressure switch as claimed in claim 7, which is characterized in that second ring segment and second cover edge And the diaphragm is fixedly connected.