CN210893531U

CN210893531U - Explosion-proof wireless pressure sensor

Info

Publication number: CN210893531U
Application number: CN201922078726.8U
Authority: CN
Inventors: 房兴村
Original assignee: Junpeng Fuel Service Tianjin Co ltd
Current assignee: Junpeng Fuel Service Tianjin Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-06-30
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses an explosion-proof type wireless pressure sensor, including wireless sensor body and end cover, the circular slot has been seted up at the positive middle part of wireless sensor body, and the end cover setting is in the inside of circular slot. This kind of wireless pressure sensor of explosion-proof type, through the telescopic link, annular slab and reset spring's cooperation is used, make the rubber circle when ambient temperature descends and take place the shrinkage annular slab can extrude the rubber circle under the effect of four reset spring restoring forces, and then make the rubber circle receive the extrusion and expand, make the inner wall and the outer wall laminating of outer wall and ring channel of rubber circle, make the leakproofness can not descend, and through the movable rod, square and extension spring's cooperation is used, make people can pass through the operation square, make it drive the movable rod remove with the end cover separation or insert one side of end cover under the effect of extension spring restoring force, the installation and the dismantlement of end cover have been made things convenient for, the practicality has been promoted.

Description

Explosion-proof wireless pressure sensor

Technical Field

The utility model relates to a pressure sensor specifically is an explosion-proof type wireless pressure sensor.

Background

The wireless pressure sensor is the most common sensor in industrial practice, and is applied to hydrology monitoring and control systems, petrochemical industry, environmental protection, tap water pipe network monitoring, reservoir height liquid level monitoring, power station operation inspection, locomotive braking systems, thermoelectric units, light industry, mechanical metallurgy, building automation, constant-pressure water supply systems, other automation and detection systems, industrial process detection and control, laboratory liquid level verification and the like.

At present, most wireless pressure sensors are provided with an end cover provided with explosion-proof toughened glass in front of a display device in order to protect the display device, but a sealing ring between the end cover and a sensor shell of the existing wireless pressure sensor is easily influenced by the ambient temperature, so that the sealing ring is easy to shrink when the temperature drops, and the sealing performance is reduced. Therefore, the explosion-proof wireless pressure sensor is improved.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to an explosion-proof wireless pressure sensor, which comprises a wireless sensor body and an end cover, the middle part of the front surface of the wireless sensor body is provided with a circular groove, the end cover is arranged inside the circular groove, the middle parts of the two sides of the front surface of the wireless sensor body are both provided with square grooves, the inner parts of the two square grooves are both provided with a fixing mechanism, the fixing mechanism consists of a movable rod, a square block and an extension spring, the extension spring is arranged outside the movable rod, the bottom end inside the end cover is fixedly connected with explosion-proof glass, the top end of the end cover is provided with an annular groove, a rubber ring is arranged inside the annular groove, a sealing mechanism is arranged at the bottom end inside the annular groove, the sealing mechanism is composed of four telescopic rods, an annular plate and four return springs, and the inner wall and the outer wall of the annular plate are respectively attached to the inner wall and the outer wall of the annular groove.

As the utility model discloses a preferred technical scheme, the movable rod sets up the one side in the square trough inside, the tip of movable rod alternates with the middle part on one side of the end cover and is connected.

As an optimal technical scheme of the utility model, the square sets up in the inside of square groove, and the middle part of square and the one end fixed connection of movable rod.

As a preferred technical scheme of the utility model, extension spring's one end and one side fixed connection of square, extension spring's the other end and one side fixed connection of square inslot portion.

As a preferred technical scheme of the utility model, four the bottom of telescopic link respectively with the four corners fixed connection of the inside bottom of ring channel, four the top of telescopic link respectively with the four corners fixed connection of annular plate bottom.

As a preferred technical scheme of the utility model, four reset spring sets up respectively in the outside of four telescopic links, four reset spring's both ends respectively with the bottom of annular slab and the inside bottom fixed connection of ring channel.

The utility model has the advantages that: this kind of wireless pressure sensor of explosion-proof type, through the telescopic link, annular slab and reset spring's cooperation is used, make the rubber circle when ambient temperature descends and take place the shrinkage annular slab can extrude the rubber circle under the effect of four reset spring restoring forces, and then make the rubber circle receive the extrusion and expand, make the inner wall and the outer wall laminating of outer wall and ring channel of rubber circle, make the leakproofness can not descend, and through the movable rod, square and extension spring's cooperation is used, make people can pass through the operation square, make it drive the movable rod remove with the end cover separation or insert one side of end cover under the effect of extension spring restoring force, the installation and the dismantlement of end cover have been made things convenient for, the practicality has been promoted.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of an explosion-proof wireless pressure sensor of the present invention;

fig. 2 is a schematic cross-sectional view of fig. 1 of an explosion-proof wireless pressure sensor according to the present invention;

fig. 3 is an enlarged schematic structural diagram of a point a in fig. 2 of the explosion-proof wireless pressure sensor of the present invention.

In the figure: 1. a wireless sensor body; 2. a circular groove; 3. an end cap; 4. explosion-proof glass; 5. a square groove; 6. a movable rod; 7. a square block; 8. an extension spring; 9. an annular groove; 10. a telescopic rod; 11. an annular plate; 12. a return spring; 13. a rubber ring.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1, fig. 2 and fig. 3, the explosion-proof wireless pressure sensor of the present invention comprises a wireless sensor body 1 and an end cap 3, wherein the wireless sensor body 1 is an HH319-2 wireless pressure sensor, the middle of the front surface of the wireless sensor body 1 is provided with a circular groove 2, the end cap 3 is arranged inside the circular groove 2, the middle of the two sides of the front surface of the wireless sensor body 1 is provided with square grooves 5, the inside of the two square grooves 5 is provided with a fixing mechanism, the fixing mechanism is composed of a movable rod 6, a square block 7 and a tension spring 8, the tension spring 8 is arranged outside the movable rod 6, the bottom end inside the end cap 3 is fixedly connected with explosion-proof glass 4, the top end of the end cap 3 is provided with an annular groove 9, the inside of the annular groove 9 is provided with a rubber ring 13, the bottom end inside the annular groove 9 is provided with a sealing mechanism, the sealing mechanism, the inner wall and the outer wall of the annular plate 11 are respectively attached to the inner wall and the outer wall of the annular groove 9.

Wherein, movable rod 6 sets up in one side of 5 inside square groove, and the tip of movable rod 6 alternates with the middle part of end cover 3 one side and is connected, uses through movable rod 6, square 7 and extension spring 8's cooperation, makes people can pass through operation square 7, makes it drive movable rod 6 and removes and separate with end cover 3 or insert one side of end cover 3 under the effect of extension spring 8 restoring force, has made things convenient for the installation and the dismantlement of end cover 3, has promoted the practicality.

Wherein, the square 7 is arranged inside the square groove 5, the middle part of the square 7 is fixedly connected with one end of the movable rod 6, and people can conveniently pull the movable rod 6 through the square 7.

One end of the extension spring 8 is fixedly connected with one side of the square 7, the other end of the extension spring 8 is fixedly connected with one side inside the square groove 5, and the movable rod 6 can be inserted into one side of the end cover 3 through the restoring force of the extension spring 8.

Wherein, the bottom of four telescopic links 10 respectively with the four corners fixed connection of the inside bottom of ring channel 9, the top of four telescopic links 10 respectively with the four corners fixed connection of annular slab 11 bottom, through telescopic link 10, annular slab 11 and reset spring 12's cooperation is used, make rubber ring 13 when ambient temperature descends and takes place the shrinkage annular slab 11 can extrude rubber ring 13 under the effect of four reset spring 12 restoring forces, and then make rubber ring 13 receive the extrusion and expand, make the inner wall and the outer wall laminating of rubber ring 13 still with ring channel 9's inner wall and outer wall, make the leakproofness can not descend, the practicality has been promoted.

Wherein, four reset spring 12 set up respectively in the outside of four telescopic links 10, and four reset spring 12's both ends respectively with the bottom of annular plate 11 and the inside bottom fixed connection of ring channel 9, through reset spring 12's restoring force, when making rubber ring 13 shrink, can promote annular plate 11 extrusion rubber ring 13.

When the wireless sensor works, firstly, the two square blocks 7 are pulled outwards, the rubber ring 13 is sleeved in the annular groove 9, the end cover 3 is inserted into the circular groove 2, the end cover 3 is sleeved on the display device on the wireless sensor body 1 to protect the wireless sensor, along with the extension of the end cover 3, the top of the rubber ring 13 is contacted with the top end in the circular groove 2 and extrudes the annular plate 11, the annular plate 11 extrudes the four reset springs 12, when the four reset springs 12 cannot be compressed continuously, the two square blocks 7 are loosened, the two square blocks 7 drive the two movable rods 6 to be inserted into the two sides of the end cover 3 under the restoring force of the two tension springs 8, so that the end cover 3 is fixed in the circular groove 2, when the ambient temperature drops and the rubber ring 13 shrinks, the annular plate 11 can extrude the rubber ring 13 under the restoring force of the four reset springs 12, the rubber ring 13 is extruded and expands, and the inner wall and the outer wall of the rubber ring 13 are still attached, so that the sealing performance is not reduced.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An explosion-proof wireless pressure sensor comprises a wireless sensor body (1) and an end cover (3), and is characterized in that a round groove (2) is formed in the middle of the front face of the wireless sensor body (1), the end cover (3) is arranged inside the round groove (2), square grooves (5) are formed in the middle of two sides of the front face of the wireless sensor body (1), a fixing mechanism is arranged inside each of the two square grooves (5), the fixing mechanism is composed of a movable rod (6), a square block (7) and a tension spring (8), the tension spring (8) is arranged outside the movable rod (6), explosion-proof glass (4) is fixedly connected to the bottom end of the inside of the end cover (3), an annular groove (9) is formed in the top end of the end cover (3), a rubber ring (13) is arranged inside the annular groove (9), and a sealing mechanism is arranged at the bottom end of the inside of the annular groove (9), the sealing mechanism is composed of four telescopic rods (10), an annular plate (11) and four return springs (12), and the inner wall and the outer wall of the annular plate (11) are respectively attached to the inner wall and the outer wall of the annular groove (9).

2. An explosion-proof wireless pressure sensor according to claim 1, characterized in that the movable rod (6) is arranged at one side inside the square groove (5), and the end of the movable rod (6) is inserted and connected with the middle part of one side of the end cover (3).

3. An explosion-proof wireless pressure sensor according to claim 1, characterized in that the block (7) is arranged inside the square groove (5), and the middle part of the block (7) is fixedly connected with one end of the movable rod (6).

4. An explosion-proof wireless pressure sensor according to claim 1, characterized in that one end of the extension spring (8) is fixedly connected with one side of the square block (7), and the other end of the extension spring (8) is fixedly connected with one side inside the square groove (5).

5. The explosion-proof wireless pressure sensor according to claim 1, wherein the bottom ends of the four telescopic rods (10) are fixedly connected with the four corners of the bottom end inside the annular groove (9), and the top ends of the four telescopic rods (10) are fixedly connected with the four corners of the bottom end of the annular plate (11).

6. An explosion-proof wireless pressure sensor according to claim 1, characterized in that four return springs (12) are respectively arranged outside the four telescopic rods (10), and two ends of the four return springs (12) are respectively fixedly connected with the bottom end of the annular plate (11) and the bottom end inside the annular groove (9).