CN210922940U

CN210922940U - Pressure transmitter

Info

Publication number: CN210922940U
Application number: CN201922089645.8U
Authority: CN
Inventors: 陈志平; 王群彪
Original assignee: Hunan Holly Cole Instrument Co ltd
Current assignee: Hunan Holly Cole Instrument Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-07-03
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a pressure transmitter, this pressure transmitter include the casing and assemble sealing member, core, stop part, visor and the flexible clamping ring in the casing in proper order, the stop part includes the main circle body of one end and core butt and the boss that extends to its central line from the inner circle of the main circle body, one side that the core was kept away from to the boss forms a block step with the inner circle of the main circle body, the block step is located to the visor card, the flexible clamping ring sets up in the other end of the main circle body and the tip of crimping in the main circle body and visor simultaneously. The utility model discloses a pressure transmitter is through the boss that forms in the owner circle is internal to form the block step in boss department, make the visor can block and locate the block step and can fix, through flexible clamping ring crimping visor, make the visor obtain fixing, and then make the connecting wire that passes the visor obtain effectual fixing, difficult production wearing and tearing have improved pressure transmitter's product quality.

Description

Pressure transmitter

Technical Field

The utility model relates to an instrument and meter technical field especially relates to a pressure transmitter.

Background

The pressure transmitter is the most common sensor in process practice, is widely applied to various industrial automatic control environments, and relates to various industries such as water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and the like.

In the related art, after the ceramic core is assembled in the housing of the pressure transmitter, in order to protect the ceramic core from being damaged due to the contact of the wire, a protective cover is added between the snap spring and the washer, so that the wire can be fixed by passing through the protective cover, but the protective cover of the structure is easy to loosen, and then the wire passing through the protective cover is driven to move, so that the wire is damaged, and the product is easy to break down.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, an embodiment of the present invention is to provide a pressure transmitter with a protective cover not easy to loosen so as to improve product quality.

The technical scheme of the utility model is realized like this:

the utility model provides a pressure transmitter, include the casing and assemble in proper order in sealing member, core, stop part, visor and flexible clamping ring in the casing, the stop part include one end with the main circle body of core butt and certainly the boss that forms is extended towards its central line direction to the inner circle of main circle body, the boss is kept away from one side of core with the inner circle of main circle body forms a block step, the visor card is located the block step, the flexible clamping ring set up in the other end of main circle body and crimping simultaneously in the main circle body with the tip of visor.

Preferably, the boss is an annular protrusion extending radially from the inner ring of the main ring body to the center line thereof.

Preferably, the inside of casing form first location step respectively, with the second location step that first location step is connected and set up in the recess of second location step department, the sealing member inlays to be located first location step, the core with the stop part inlays simultaneously to be located second location step, the card of deformable clamping ring is located in the recess.

Preferably, the stopper is made of copper, and the protective cover is a plastic protective cover.

Preferably, the protective cap and the stopper are in an interference fit.

Preferably, the deformable pressing ring is a snap spring.

Preferably, the protective cover is provided with a through hole, and a connecting wire connected to the core body passes through the through hole.

Preferably, the core body is a ceramic core body, and the connecting wire is fixedly connected with the core body through welding.

Preferably, the sealing element is a silica gel sealing ring or a rubber sealing ring.

The embodiment of the utility model provides a pressure transmitter is through at the internal boss that forms of main ring, and boss department forms the block step, makes the visor can the card be located the block step can be fixed, simultaneously through flexible clamping ring crimping the visor, thereby makes the visor obtains effectually fixed, and then makes and passes the connecting wire of visor can obtain effectually fixed, is difficult for producing wearing and tearing, has reduced the phenomenon that the product quality goes wrong because of the problem of connecting wire leads to, the effectual product quality who improves pressure transmitter.

Drawings

Fig. 1 is a schematic structural diagram of a pressure transmitter provided by the present invention;

FIG. 2 is a schematic structural view of the housing shown in FIG. 1;

fig. 3 is a schematic structural view of the stopper shown in fig. 1.

Detailed Description

In order to illustrate embodiments of the present invention or technical solutions in the prior art more clearly, the following description will be made in conjunction with the accompanying drawings in embodiments of the present invention to describe the technical solutions in the embodiments of the present invention clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 is a schematic structural diagram of a pressure transmitter according to the present invention. The pressure transmitter comprises a hollow shell 1, and a sealing element 3, a core body 5, a stop part 7, a protective cover 8 and a deformable pressing ring 9 which are sequentially assembled in the shell 1.

Fig. 2 is a schematic structural diagram of the housing shown in fig. 1. The inside of casing 1 forms first location step 11 respectively, with second location step 13 that first location step 11 is connected and set up in the recess 15 of second location step 13 department, sealing member 3 inlays and locates first location step 11, the core 5 with stop part 7 inlays simultaneously and locates second location step 13, deformable clamping ring 9 card is located in the recess 15.

Please refer to fig. 3, which is a schematic structural diagram of the stopper shown in fig. 1. The stopper 7 comprises a main ring body 71 with one end abutting against the core body 5 and a boss 73 extending from the inner ring of the main ring body 71 to the central line direction thereof, one side of the boss 73 far away from the core body 5 and the inner ring of the main ring body 71 form a clamping step 75, and the protective cover 8 is clamped on the clamping step 75.

Specifically, in the present embodiment, the boss 73 is an annular projection extending radially from the inner ring of the main ring body 71 toward the center line thereof.

Specifically, in the present embodiment, the stopper 7 is a copper stopper.

The protective cover 8 is of a circular plate-shaped structure, the protective cover 8 is provided with a through hole penetrating through two opposite side surfaces of the protective cover, and a connecting wire 10 connected to the core body 5 penetrates through the through hole, so that the connecting wire 10 can be well fixed. Because the visor 8 is plastics visor 8, and plastics are made visor 8 can produce certain plastic deformation, visor 8 with stop member 7 passes through interference fit, makes visor 8 can firmly block in block step 75 department prevents visor 8 is not hard up, like this, passes visor 8's connecting wire can be fixed, can not produce the motion friction, has reduced the wearing and tearing of connecting wire, has prolonged life, the effectual quality that improves the product.

Specifically, in this embodiment, the deformable compression ring 9 is a snap spring, the snap spring has an opening, and the size of the opening is specifically compressed to realize the deformation of the snap spring so as to fix the snap spring in the groove 15.

Specifically, in this embodiment, the core 5 is a ceramic core, and the connecting wire 10 is fixedly connected to the core 5 by welding.

The deformable press ring 9 is arranged at the other end of the main ring body 71 and is simultaneously pressed on the main ring body 71 and the end part of the protective cover 8 to further fix the protective cover 8 and the stop part 7, so that the fixing effect of the protective cover 8 is effectively improved.

Specifically, in this embodiment, the sealing element 3 is a silicone sealing ring or a rubber sealing ring.

Pressure transmitter's assembling process does, earlier with sealing member 3 imbeds in the casing 1 first location step 11, then will weld the core 5 assembly that has connecting wire 10 extremely in the casing 1 second location step 13 with the sealing washer butt will install visor 8 stop part 7 is installed in the casing 1 second location step 13 with core 5 butt, at last will deformable clamping ring 9 adopts jump ring pincers to pack into in the casing 1 and inlay and establish in recess 15.

The embodiment of the utility model provides a pressure transmitter is through the boss that forms at the main ring internal formation, and boss department forms the block step, makes the visor can the card be located the block step can be fixed, simultaneously through flexible clamping ring crimping the visor, thereby makes the visor obtains effectually fixed, and then makes and passes the connecting wire of visor can obtain effectually fixed, is difficult for producing wearing and tearing, has reduced the phenomenon that the product quality goes wrong because of the problem of connecting wire leads to, the effectual product quality who improves pressure transmitter.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a pressure transmitter, its characterized in that, include the casing and assemble in proper order in sealing member, core, stop member, visor and flexible clamping ring in the casing, the stop member include one end with the main circle body of core butt and certainly the boss that forms is extended towards its central line direction to the inner circle of main circle body, the boss is kept away from one side of core with the inner circle of main circle body forms a block step, the visor card is located the block step, the flexible clamping ring set up in the other end of main circle body and crimping simultaneously in the main circle body with the tip of visor.

2. The pressure transmitter of claim 1, wherein the boss is an annular protrusion extending radially from the inner ring of the main ring body toward the centerline thereof.

3. The pressure transmitter of claim 1, wherein a first positioning step, a second positioning step connected with the first positioning step, and a groove formed at the second positioning step are formed in the housing, the sealing member is embedded in the first positioning step, the core and the stop member are embedded in the second positioning step, and the deformable pressing ring is clamped in the groove.

4. The pressure transmitter of claim 1 wherein the stop is a copper stop and the protective cover is a plastic protective cover.

5. Pressure transmitter according to claim 1 or 4, characterized in that the protective cover and the stop are fitted by interference.

6. The pressure transmitter of claim 1 wherein the deformable pressure ring is a circlip.

7. The pressure transmitter of claim 1 wherein the protective cover defines a through hole through which a connecting wire connected to the core passes.

8. The pressure transmitter of claim 7, wherein the core is a ceramic core, and the connecting wires are fixedly connected to the core by welding.

9. The pressure transmitter of claim 1, wherein the seal is a silicone seal or a rubber seal.