CN216045657U

CN216045657U - External electric signal sensor

Info

Publication number: CN216045657U
Application number: CN202121139640.2U
Authority: CN
Inventors: 程华龙; 后文杰; 张宏; 汪昌斌
Original assignee: Shanghai Huali Safety Devices Co ltd
Current assignee: Shanghai Huali Safety Devices Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-03-15
Anticipated expiration: 2031-05-26

Abstract

The utility model relates to an external electric signal sensor, which comprises a working ring, an action membrane group, a gasket group and a wire, wherein the inner edge of the working ring is provided with a protruded winding short section I, the winding short section I is provided with a winding hole I, the inner edge of the working ring, which is opposite to the winding short section I, is provided with a protruded winding short section II, the winding short section II is provided with two symmetrical winding holes II, and the outer edge of the working ring is provided with a radially outwards-protruded wiring end; the action membrane group comprises an action membrane I and an action membrane II; the gasket group comprises a gasket I and a gasket II; the wire is wound on the working ring, wherein the wire is divided into two strands after passing through the wire winding hole I, and the two strands of wires are respectively wound around the wire winding hole II for one circle and are connected with the cable. Compared with the prior art, the utility model can effectively reduce the risk of breakage and failure of the electric signal sensor caused by extruding the lead when the clamp holder and the equipment flange are clamped; prevent that equipment from destroying the electric signal sensor when having backpressure, prevent dust, rubbish contact rupture disk.

Description

External electric signal sensor

Technical Field

The utility model relates to the technical field of signal feedback of a rupture disk safety device, in particular to an external electrical signal sensor.

Background

The external electrical signal sensor is used as a common signal feedback device and is widely applied to the rupture disk safety device industry. The main component of the conventional external electrical signal sensor is a flexible circuit. The head of the flexible circuit is wound at the groove at the upper end of the working ring, the tail of the flexible circuit is fixed at the lower wire connecting end of the working ring and is connected with the cable, the upper part and the lower part of the working ring are adhered with the action films, and the upper part and the lower part of the action films are adhered with the gaskets.

Such external electrical signal sensors have the following disadvantages: 1. the existing flexible circuit has fewer dimensions, and cannot achieve comprehensive coverage in the face of the existing rupture disk safety devices with increasingly larger dimensions. 2. The grooving position of the upper end of the working ring is positioned on the sealing surface of the flange and the clamp holder, and when the bolt tightening torque of the flange is large, the situation that the flexible circuit is broken and fails frequently occurs, so that the normal working operation of the equipment is influenced. 3. The action membrane is whole fluoroplastic membrane, and when equipment had reverse negative pressure, the flexible circuit broke failure in advance easily, leads to equipment to stop operation, causes the loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide an external electrical signal sensor which is directly arranged between an equipment flange and an upper clamp holder and is suitable for clamp holders with various specifications, and a lead avoids a clamping surface during installation, so that the risk of fracture and failure of the electrical signal sensor caused by extrusion of the lead when the clamp holder and the equipment flange are clamped can be effectively reduced.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides an external electric signal sensor, including working ring, action membrane group, spacer group, wire, wherein specifically:

the inner edge of the working ring is provided with a protruded winding short section I, the winding short section I is provided with a winding hole I, the inner edge of the working ring, which is opposite to the winding short section I, is provided with a protruded winding short section II, the winding short section II is provided with two symmetrical winding holes II, and the outer edge of the working ring is provided with a radially outwards protruded wiring end;

the action membrane group comprises an action membrane I and an action membrane II which are respectively arranged at the upper side and the lower side of the working ring;

the gasket group comprises a gasket I and a gasket II which are respectively arranged on the upper surface of the action film I and the lower surface of the action film II;

the wire is wound on the working ring, wherein the wire is divided into two strands after passing through the wire winding hole I, the two strands of wires respectively penetrate out of the gasket I and the gasket II and are fixed on the wiring end after passing through the wire winding hole II for one circle, and the two strands of wires are connected with the cable.

Further, the lead is a beryllium bronze lead sleeved with a fluoroplastic sleeve.

As an embodiment of the present technical solution, two gasket grooves I are symmetrically arranged on the lower surface of the gasket I.

As another embodiment of the present technical solution, two gasket grooves II are symmetrically arranged on the upper surface of the gasket II.

Furthermore, the gasket groove I, the gasket groove II and the working ring terminal are correspondingly arranged on the same side.

Furthermore, the action membrane I is provided with a vent hole I.

Furthermore, the action membrane II is provided with a vent hole II, and the vent hole II and the vent hole I are arranged in a staggered mode.

Furthermore, the vent hole II and the vent hole I are made of fluoroplastic materials.

Furthermore, the winding hole I and the winding hole II are located on the same circumference, and when the electric signal sensor is installed between the equipment flange and the upper clamp, the circumferential diameter of the winding hole I and the winding hole II is smaller than the inner diameter of the upper clamp.

Furthermore, the connecting part of the lead and the cable is fixed at the terminal of the working ring by an insulating adhesive tape and is sleeved with a heat-shrinkable sleeve.

Compared with the prior art, the utility model has the following technical advantages:

1. the external electric signal sensor in the technical scheme has good universality, is directly installed between the equipment flange and the upper clamp holder, and is suitable for clamp holders of various specifications.

2. When the external electric signal sensor in the technical scheme is installed, the wire avoids the clamping surface, so that the risk of fracture failure of the electric signal sensor caused by the fact that the wire is extruded when the clamp holder and the equipment flange are clamped can be effectively reduced.

3. The two layers of action membranes of the external electric signal sensor in the technical scheme are symmetrically perforated respectively, so that the electric signal sensor can be prevented from being damaged when reverse pressure exists in equipment, and dust and garbage are prevented from contacting a rupture disc safety device.

4. The external electric signal sensor lead and the cable wire connection part in the technical scheme are fixed on the working ring wire connection end, and are sleeved with the heat-shrinkable sleeve, so that the strength of the wire connection part is enhanced, and the risk of failure of the electric signal sensor caused by stress during installation is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of an external electrical signal sensor according to the present invention;

FIG. 2 is a schematic top view of the external electrical signal sensor of the present invention;

FIG. 3 is a schematic top view of the external electrical signal sensor of the present invention;

FIGS. 4 and 5 are a schematic top view and a schematic partial cross-sectional view A-A of a gasket I according to the present invention;

FIGS. 6 and 7 are a schematic top view and a schematic B-B partial cross-sectional view of a gasket II according to the present invention;

fig. 8 is a schematic view of the installation of the present invention.

In the figure, 1 is the working ring, 101 is wire winding nipple joint I, 102 is wire winding hole I, 103 is wire winding nipple joint II, 104 is wire winding hole II, 105 is the wiring end, 2 is action membrane I, 201 is air vent I, 3 is action membrane II, 301 is air vent II, 4 is gasket I, 401 is gasket groove I, 5 is gasket II, 501 is gasket groove II, 6 is the beryllium bronze wire that the cover was equipped with the fluoroplastics sheathed tube.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments.

Example 1

The external electrical signal sensor comprises a working ring 1, a beryllium bronze wire 6, an action film I2, an action film II 3, a gasket I4 and a gasket II 5, and is shown in figures 1 and 2.

In the embodiment, an inner hole at the upper end of a working ring 1 is provided with a protruding winding nipple I101, the winding nipple I101 is provided with a winding hole I102, an inner hole at the lower end of the working ring is provided with a protruding winding nipple II 103, the winding nipple II is provided with two symmetrical winding holes II 104, referring to figures 2 and 3, the outer edge of the lower end of the working ring is provided with a protruding terminal 105, the working ring is adhered with an action film I2, the lower part of the working ring is adhered with an action film II 3, the action film I2 is adhered with a gasket I4, the lower side of the gasket I4 is provided with two symmetrical gasket grooves I401 communicated with a hollow part, the lower part of the action film II 3 is adhered with a gasket II 5, referring to figures 4 and 5, the working ring is wound with a beryllium wire 6 sleeved with a fluoroplastic sleeve, the beryllium bronze wire 6 sleeved with the fluoroplastic sleeve passes through the two winding holes I102 and then is divided into two, the bronze wires of the fluoroplastic sleeve are respectively wound around the winding hole II 104 for one circle, and then respectively penetrates out of the two gasket grooves I401 to be fixed on the terminal 105 and is connected with the cable.

In this embodiment, a vent I201 is disposed on one side of the operating membrane I2, and is made of fluoroplastic. A vent hole II 301 is formed in one side of the action membrane II 3, and is made of fluoroplastic, and the positions of the vent hole II 301 and the vent hole I201 are relatively symmetrical, as shown in fig. 2. When the equipment has reverse pressure, the electric signal sensor can not be damaged, and meanwhile, dust and garbage are prevented from contacting the safety device of the rupture disk.

In this embodiment, the working encircling hole I102 and the working encircling hole II 104 are on the same circumference and have a circumferential diameter less than the inner diameter of the associated upper holder. The shim groove I401, the shim groove II 501 and the service ring terminal 105 are on the same side. The beryllium bronze wire 6 sleeved with the fluoroplastic sleeve avoids the clamping surface, so that the risk that the beryllium bronze wire 6 sleeved with the fluoroplastic sleeve is broken and fails when the clamper and the equipment flange are clamped by the electric signal sensor is prevented.

In this embodiment, the connection between the beryllium bronze wire 6 and the cable, which is sheathed with a fluoroplastic sleeve, is fixed to the working ring terminal 105 by an insulating tape, and is sheathed with a heat-shrinkable sleeve. The strength of the joint of the beryllium bronze wire sleeved with the fluoroplastic sleeve and the cable is enhanced, and the risk of failure of the electrical signal sensor caused by stress fracture in the installation process of the joint is reduced.

When the device is normally used, the external electric signal sensor in the technical scheme is arranged between the equipment flange and the upper clamp holder, referring to fig. 8, the rupture disk is opened after being exploded, and the beryllium bronze wire sleeved with the fluoroplastic sleeve is cut off, so that the electric signal sensor sends a signal to achieve the alarm effect.

Example 2

Referring to fig. 6 and 7, in this embodiment, the upper side of the gasket II 5 is provided with two symmetrical gasket grooves II 501 penetrating the hollow portion, and the gasket I4 is not provided with a gasket groove. At this time, the beryllium bronze wire 6 sleeved with the fluoroplastic sleeve passes through the winding hole I102 and then is divided into two strands, the two strands of beryllium bronze wires sleeved with the fluoroplastic sleeve respectively wind the winding hole II 104 for one circle, and then the two strands of beryllium bronze wires penetrate out of the two gasket grooves II 501 and are fixed on the terminal 105 and are connected with the cable.

The embodiments described above are intended to facilitate the understanding and use of the utility model by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. An external electrical signal sensor, comprising:

the winding device comprises a working ring (1), wherein a protruded winding short section I (101) is arranged on the inner edge of the working ring (1), a winding hole I (102) is formed in the winding short section I (101), a protruded winding short section II (103) is arranged on the inner edge of the working ring (1) opposite to the winding short section I (101), two symmetrical winding holes II (104) are formed in the winding short section II (103), and a radially outwards protruded wiring terminal (105) is arranged on the outer edge of the working ring (1);

the action membrane group comprises an action membrane I (2) and an action membrane II (3) which are respectively arranged at the upper side and the lower side of the working ring (1);

the gasket group comprises a gasket I (4) and a gasket II (5) which are respectively arranged on the upper surface of the action film I (2) and the lower surface of the action film II (3);

the wire is wound on the working ring (1), wherein the wire is divided into two strands after passing through the winding hole I (102), the two strands of wires respectively pass through the gasket I (4) and the gasket II (5) and are fixed on the wiring end (105) in a penetrating way respectively and are connected with the cable.

2. The external electrical signal sensor according to claim 1, wherein the lead (6) is a beryllium bronze lead sheathed with a fluoroplastic sleeve.

3. The external electrical signal sensor as claimed in claim 1, wherein the lower surface of the spacer I (4) is symmetrically provided with two spacer grooves I (401).

4. The external electrical signal sensor as claimed in claim 1, wherein the upper surface of the spacer II (5) is symmetrically provided with two spacer grooves II (501).

5. The external electrical signal sensor according to claim 4, wherein the pad slot I (401), the pad slot II (501), and the working ring terminal (105) are disposed on the same side.

6. The external electrical signal sensor as claimed in claim 1, wherein the action membrane I (2) is provided with a vent I (201).

7. The external electrical signal sensor of claim 6, wherein the action membrane II (3) is provided with a vent hole II (301), and the vent hole II (301) is arranged in a staggered manner with respect to the vent hole I (201).

8. The external electrical signal sensor of claim 7, wherein the vent holes II (301) and I (201) are made of fluoroplastic.

9. The external electrical signal sensor as claimed in claim 1, wherein the winding hole I (102) and the winding hole II (104) are located on the same circumference, and when the electrical signal sensor is installed between the equipment flange and the upper holder, the diameter of the circumference where the winding hole I (102) and the winding hole II (104) are located is smaller than the inner diameter of the upper holder.

10. The external electrical signal transducer of claim 1, wherein the connection between said lead and said cable is secured to the working ring terminal (105) by an insulating tape and is covered by a heat shrink sleeve.