CN212963810U - Mining differential pressure sensor - Google Patents

Abstract

The utility model discloses a mining differential pressure sensor, which comprises an outer shell, shell top fixed connection lighting apparatus and handle, lighting apparatus is located in the middle of the handle, lighting apparatus includes the lamp shade, decorates circle, the first sealed pad and lamp plate, the lamp plate is installed inside the shell, shell lateral wall fixed mounting has M16 aviation plug, the shell openly has transparent display window through the sealed pad fixed mounting that fills up of second, shell internally mounted has the mainboard, and has bee calling organ through the sealed pad fixed mounting that fills up of third, the shell rear portion is filled up through the fourth and is installed the back lid, shell bottom fixedly connected with pressure probe and protection machanism, pressure probe is located in the middle of the protection machanism, protection machanism includes folded tube, ring pipe, baffle and go-between. The utility model discloses play the effect of protection to the probe when pressure probe does not use, prevent that pressure probe from receiving the external factor influence and damaging, ensured mine workman's life safety.

Description

Mining differential pressure sensor

Technical Field

The utility model belongs to the technical field of mining equipment, especially, relate to a mining differential pressure sensor.

Background

China is a big coal producing country, the coal yield leaps the first three in the world, most of coal is stored under the ground, so the coal must be mined in a mine form, the underground work is very dangerous for the personal safety of coal workers, many coal mine accidents occur every year in China, and the bleeding cost is paid every time. Therefore, environmental monitoring under the mine becomes particularly important. The underground environment of the mine is complex, and the underground pressure is also changed frequently, so that reliable equipment is needed for monitoring the underground pressure change, coal mine disasters can be found in early stage conveniently, and accidents are prevented.

However, the existing mining differential pressure sensor does not have enough protection for the probe part, when the probe is not used, the probe cannot be effectively protected, the probe is possibly damaged due to external factors, data obtained when the damaged probe performs pressure detection on the mine bottom can be different from actual pressure, and the life of workers needing to go into a mine cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the sensor probe does not have effective protection, and the mining differential pressure sensor who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a mining differential pressure sensor, includes the shell, shell top fixed connection lighting apparatus and handle, lighting apparatus is located in the middle of the handle, lighting apparatus includes the lamp shade, decorates circle, the sealed pad of first and lamp plate, the lamp plate is installed inside the shell, lamp shade fixed mounting is at the shell top, and inside the junction of lamp shade and shell was installed to first sealing washer, decorate the circle cover and establish in the lamp shade outside, shell lateral wall fixed mounting has M16 aviation plug, the shell openly has transparent display window through the sealed pad fixed mounting of second, the inside fixed mounting of shell has the mainboard, and has bee calling organ through the sealed pad fixed mounting of third, the back lid is installed through the sealed pad of fourth in shell rear portion, shell bottom fixed connection has pressure probe and protection machanism, pressure probe is located in the middle of protection machanism, protection machanism includes folding, The folding pipe is connected to the bottom of the shell through a bearing in a rotating mode, the connecting ring is fixedly connected between the folding pipe and the ring pipe, the ring pipe is far away from the baffle, and the connecting ring is connected with the shell through a connecting mechanism and is connected with a pressure probe.

Preferably, the connecting mechanism comprises a first threaded ring, a second threaded ring and a threaded groove, threads are arranged in the connecting ring, the threaded groove is formed in one side, close to the shell, of the connecting ring, the first threaded ring is fixedly mounted on the pressure probe, and the second threaded ring is fixedly connected to the shell.

Preferably, the pressure probe is composed of a piezoresistive diffused silicon full bridge circuit and is connected with the internal main board through a circuit.

Preferably, the ring pipe is made of hard rubber, two openings are formed in the surface of the ring pipe, and the size of each opening is larger than the diameter of the pressure probe.

Preferably, the folding tube is made of rubber materials, and the length of the folding tube after being unfolded is the same as that of the pressure probe base part.

Compared with the prior art, the beneficial effects of the utility model are that:

the pressure of a mine is tested by a pressure probe, the pressure detection of a sensor adopts a piezoresistive strain force measurement principle, and the probe is composed of a piezoresistive diffused silicon full-bridge circuit. The pressure change is converted into voltage signal by bridge circuit, through A/D conversion, the on-site pressure digital display is realized by single-chip computer, and the voltage signal is sent to system substation in the form of frequency (or current) signal, and the pressure data is sent to ground central station by communication interface device and cable, so that the continuous real-time monitoring of pressure is realized. The sensor circuit is designed by adopting a single chip microcomputer, can display the detected pressure value on site and simultaneously output various signals for remote acquisition; the remote-control zero point and sensitivity adjustment device can remotely adjust zero point and sensitivity, has a fault self-checking function and brings great convenience to use and maintenance. And simultaneously, the folding pipe is stretched when the pressure probe is not used and is connected with a first threaded ring on the pressure probe through threads, and is connected with a second threaded ring on the shell through a threaded groove when the pressure probe is not used. The utility model discloses play the effect of protection to the probe when pressure probe does not use, prevent that the probe from receiving the external influence and damaging, ensured mine workman's life safety.

Drawings

Fig. 1 is a front view of a mining differential pressure sensor provided by the present invention;

fig. 2 is a side view of a mining differential pressure sensor provided by the present invention;

fig. 3 is a back view of the mining differential pressure sensor provided by the present invention;

fig. 4 is a schematic view of an internal structure of a mining differential pressure sensor provided by the present invention;

fig. 5 is a bottom schematic view of a mining differential pressure sensor according to the present invention;

fig. 6 is a schematic view of a connection ring structure of a mining differential pressure sensor according to the present invention.

In the figure: the lamp comprises a shell 1, a lampshade 2, a decorative ring 3, a first sealing gasket 4, a lamp panel 5, a second sealing gasket 6, a transparent display window 7, a main board 8, a third sealing gasket 9, a buzzer 10, a fourth sealing gasket 11, a rear cover 12, a pressure probe 13, a folding pipe 14, a ring pipe 15, a baffle 16, a connecting ring 17, a first threaded ring 18, a second threaded ring 19, a threaded groove 20, a handle 21 and a navigation plug 22M 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-6, a mining differential pressure sensor comprises a housing 1, the top of the housing 1 is fixedly connected with an illumination device and a handle 21, the illumination device is positioned in the middle of the handle 21, the illumination device comprises a lampshade 2, a decorative ring 3, a first sealing gasket 4 and a lamp panel 5, the lamp panel 5 is installed inside the housing 1, the lampshade 2 is fixedly installed at the top of the housing 1, the first sealing gasket is installed inside the joint of the lampshade 2 and the housing 1, the decorative ring 3 is sleeved outside the lampshade 2, the side wall of the housing 1 is fixedly provided with an M16 navigation plug 22, the front of the housing 1 is fixedly provided with a transparent display window 7 through a second sealing gasket 6, the interior of the housing 1 is fixedly provided with a main board 8, a buzzer 10 is fixedly installed through a third sealing gasket 9, the rear part of the housing 1 is provided with a rear cover 12 through a, pressure probe 13 is located in the middle of the protection machanism, and protection machanism includes folding pipe 14, ring pipe 15, baffle 16 and go-between 17, and folding pipe 14 passes through the bearing and rotates to be connected in 1 bottom of shell, and go-between 17 fixed connection is between folding pipe 14 and ring pipe 15, and the one end fixedly connected with baffle 16 that go-between 17 was kept away from to ring pipe 15, and go-between 17 passes through coupling mechanism and is connected pressure probe 13 with shell 1 and be connected.

In the embodiment applying the technical scheme, the pressure of the mine is tested by the pressure probe 13, the pressure detection of the sensor adopts the piezoresistive strain force measurement principle, and the pressure probe 13 is formed by a piezoresistive diffused silicon full-bridge circuit. The pressure change is converted into voltage signal by bridge circuit, through A/D conversion, the on-site pressure digital display is realized by single-chip computer, and the voltage signal is sent to system substation in the form of frequency (or current) signal, and the pressure data is sent to ground central station by communication interface device and cable, so that the continuous real-time monitoring of pressure is realized. The sensor circuit is designed by adopting a single chip microcomputer, can display the detected pressure value on site and simultaneously output various signals for remote acquisition; the remote-control zero point and sensitivity adjustment device can remotely adjust zero point and sensitivity, has a fault self-checking function and brings great convenience to use and maintenance. While the folded tube 14 is stretched when the pressure probe 13 is not in use, by means of a thread on the coupling ring 17 and a first threaded ring 18 on the pressure probe 13, and by means of a thread groove 20 on the coupling ring 17 and a second threaded ring 19 on the housing 1 when in use. The utility model discloses play the effect of protection to the probe when pressure probe 13 does not use, prevent that pressure probe 13 from receiving the external factor influence and damaging, ensured mine workman's life safety.

In the preferred technical solution in this embodiment, the connection mechanism includes a first threaded ring 18, a second threaded ring 19 and a threaded groove 20, the connection ring 17 is internally provided with threads, and one side of the connection ring close to the housing 1 is provided with the threaded groove 20, the first threaded ring 18 is fixedly mounted on the pressure probe 13, and the second threaded ring 19 is fixedly connected to the housing 1, so that the connection ring 17 is effectively connected to the pressure probe 13 and the housing 1;

the pressure probe 13 is composed of a piezoresistive diffused silicon full bridge circuit and is connected with the internal main board 8 through a circuit;

the ring pipe 15 is made of hard rubber, two openings are formed in the surface of the ring pipe, the size of each opening is larger than the diameter of the pressure probe 13, and the pressure probe 13 is protected while the normal use of the pressure probe 13 is guaranteed;

the folding tube 14 is made of rubber materials, and the length of the folding tube is the same as that of the base part of the pressure probe 13 after being unfolded, so that the folding tube 14 keeps a straight state after being unfolded, and the pressure probe 13 is protected.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. The utility model provides a mining differential pressure sensor, includes shell (1), its characterized in that, shell (1) top fixed connection lighting apparatus and handle (21), lighting apparatus is located in the middle of handle (21), lighting apparatus includes lamp shade (2), decorates circle (3), first sealed pad (4) and lamp plate (5), install inside shell (1) lamp plate (5), lamp shade (2) fixed mounting is at shell (1) top, and just first sealing washer is installed inside the junction of lamp shade (2) and shell (1), decorate circle (3) cover and establish in the lamp shade (2) outside, shell (1) lateral wall fixed mounting has M16 navigation plug (22), shell (1) openly has transparent display window (7) through sealed pad (6) fixed mounting of second, shell (1) inside fixed mounting has mainboard (8), and have bee calling organ (10) through third sealed pad (9) fixed mounting, back lid (12) are installed through fourth sealed pad (11) to shell (1) rear portion, shell (1) bottom fixedly connected with pressure probe (13) and safeguard mechanism, pressure probe (13) are located in the middle of the safeguard mechanism, safeguard mechanism includes folding pipe (14), ring pipe (15), baffle (16) and go-between (17), folding pipe (14) rotate through the bearing and connect in shell (1) bottom, go-between (17) fixed connection is between folding pipe (14) and ring pipe (15), the one end fixedly connected with baffle (16) of go-between (17) are kept away from to ring pipe (15), go-between (17) are connected pressure probe (13) through coupling mechanism and shell (1).

2. The mining differential pressure sensor according to claim 1, characterized in that the connecting mechanism comprises a first threaded ring (18), a second threaded ring (19) and a threaded groove (20), the connecting ring (17) is internally threaded, the threaded groove (20) is formed in one side close to the housing (1), the first threaded ring (18) is fixedly mounted on the pressure probe (13), and the second threaded ring (19) is fixedly connected to the housing (1).

3. The mining differential pressure sensor according to claim 1, characterized in that the pressure probe (13) is composed of a piezoresistive diffused silicon full bridge circuit and is connected with the internal main board (8) through a line.

4. The mining differential pressure sensor according to claim 1, characterized in that the ring pipe (15) is made of hard rubber material, and two openings are opened on the surface, and the size of the opening is larger than the diameter of the pressure probe (13).

5. A mining differential pressure sensor according to claim 1, characterized in that the folded tube (14) is made of rubber and has the same length as the base part of the pressure probe (13) after being unfolded.

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