CN223139531U

CN223139531U - A plug-in fixed gas detector

Info

Publication number: CN223139531U
Application number: CN202422110961.XU
Authority: CN
Inventors: 马海君; 梁风功; 郎志强
Original assignee: Jinan Dingnuo Technology Co ltd
Current assignee: Jinan Dingnuo Technology Co ltd
Priority date: 2024-08-29
Filing date: 2024-08-29
Publication date: 2025-07-22
Anticipated expiration: 2034-08-29

Abstract

The utility model relates to the technical field of gas detection devices, and in particular to a plug-in fixed gas detector. It includes a shell, a main control board for processing and transmitting electrical signals arranged in the shell, a hole arranged on the shell, a probe plug-in that cooperates with the hole and is electrically connected to the main control board, the probe plug-in is provided with a socket on the outward side of the hole, a detector plugged into the socket for detecting gas, the detector includes a first probe equipped with a circuit board for processing the electrical signals of the gas sensor, and a second probe plugged under the first probe and equipped with a gas sensor adapted to the circuit board. The utility model has the advantages of convenient installation and maintenance, no influence on the operation of the monitoring system, and simple calibration and parameter operation. The plug-in structure simplifies the installation and replacement steps, the self-locking switch improves safety, the probes are centrally calibrated to process the sensor data, and calibration and plug-in are convenient for use, and it is suitable for multi-detector network scenarios.

Description

Plug-in type fixed gas detector

Technical Field

The utility model relates to the technical field of gas detection devices, in particular to a pluggable fixed gas detector.

Background

The fixed gas detector is equipment for detecting the concentration of specific gas in the environment, and is widely applied to the fields of industrial production, petrochemical industry, coal mine, electric power, environmental protection, metallurgy, aerospace, scientific research experiments and the like. The gas leakage monitoring device has the main functions of timely finding out gas leakage and monitoring gas concentration change so as to prevent safety accidents such as fire, explosion, poisoning and the like. The gas detector is generally composed of a probe, a sensor, a control circuit, an alarm device and the like. When the gas concentration exceeds a set threshold value, the alarm device can send out an audible and visual alarm signal to remind workers to take corresponding measures.

Conventional stationary gas detectors have exposed a number of problems in practical applications. First, the manner in which the probe is mounted is extremely cumbersome and requires a number of complex steps including powering down, disconnecting the circuit board module, connecting the cable to the designated terminal, mounting the circuit board module, and re-energizing. The power-off operation can affect the normal operation of the whole monitoring system by means of various tools, and particularly under the condition that a network is formed by a plurality of detectors on the site of a user, the power-off operation of one detector is extremely difficult, the working efficiency is seriously affected, in addition, the service life of a sensor of the existing fixed gas detector is short, the sensor needs to be regularly overhauled and replaced, great inconvenience is caused, and in addition, a display screen in the detector is abnormal, and the sensor needs to be disassembled when being maintained, so that the working efficiency is very inconvenient.

In the aspects of calibration and parameter operation of the detector, the operation of the existing instrument is usually carried out on site, a worker needs to carry out calibration operation on each instrument installed on site one by holding a standard gas cylinder, and meanwhile, the operations of modifying and adjusting the parameters of the instrument and the like also need to be completed on site. In the practical operation, the method is time-consuming and labor-consuming, and is very difficult to operate in the field in some places with severe environments, so that great inconvenience is brought to the maintenance of the instrument.

In view of the above, in order to ensure production safety and improve working efficiency, innovations and improvements on the structure and function of the fixed gas detector are urgently needed to solve many problems existing in the existing products.

Disclosure of utility model

In order to solve the problem that the probe of the fixed gas detector is difficult to detach and calibrate, the utility model provides the fixed gas detector with the pluggable detection head.

The utility model provides a pluggable fixed gas detector, which adopts the following technical scheme:

The utility model provides a fixed gas detector of plug-in, includes the casing, sets up the main control board that is used for handling and transmitting the signal of telecommunication in the casing, establishes the hole on the casing, with hole cooperation and with main control board electric connection's probe plug-in, the probe plug-in is in the hole is equipped with the jack outward on the one side, peg graft the detector that is used for detecting gas on the jack, the detector is including the first probe that is equipped with the processing gas sensor signal of telecommunication circuit board, peg graft under first probe and be equipped with the second probe to the gas sensor of circuit board adaptation.

Further, the casing includes the protecgulum, establishes the preceding sealing washer in the protecgulum, with protecgulum threaded connection's axis, with the rear cover of axis threaded connection setting at the axis rear, establish the back sealing washer in the rear cover, the protecgulum is including being equipped with the perspective window that glass covered, the axis is including establishing the external screw thread through hole pipe at the lateral wall, establishes the siphunculus of axis downside, wherein, probe plug piece fixed mounting is in the siphunculus.

Further, the support plate is fixedly arranged in the center shaft, the main control board is arranged in the support plate, a display board for displaying detection results is inserted on the support plate, and the back of the display board is connected with the main control board through a lead.

Further, an expansion plug piece is arranged in the external thread through hole pipe and is electrically connected with the main control board, and the external thread through hole pipe is detachably screwed with a plug for sealing the hole pipe.

Further, the external light alarm of external spiral line through hole pipe, the light alarm includes the alarm lamp, with the expansion plug of external screw line through hole pipe grafting, screw the connecting piece on external spiral line through hole pipe.

Further, a self-locking switch for controlling the on-off of the main control board is arranged in the probe plug-in component, and a relay controlled by the self-locking switch is arranged on the main control board.

Further, the first probe comprises a first tube body, a circuit board plug electrically connected with the circuit board and used for being inserted on the probe plug-in component, a protective sleeve arranged in the first tube body and used for protecting the circuit board, and a sensor plug-in component connected with the second probe in a plug-in mode.

Further, the first pipe body is sleeved in the through pipe, a threaded hole is formed in the side wall of the through pipe, and the first probe is connected with the through pipe through bolt fastening.

Further, the second probe comprises a second pipe body, and a sensor plug which is arranged in the second pipe body and used for being inserted into the sensor plug, and the sensor plug is electrically connected with the gas sensor.

Further, the second probe further comprises a metal cover body arranged at the end for collecting and detecting the gas, a metal net arranged in the metal cover body and used for isolating the outside from the gas sensor, and a vent hole is formed in the metal cover body.

In summary, the utility model has the following beneficial technical effects:

1. The pluggable fixed gas detector provided by the utility model is convenient to install and maintain, adopts a pluggable structure, does not need to undergo complicated steps in the installation and replacement of the probe, and only needs to be plugged into the jack through the design of the probe plug-in piece and the plug, so that the installation process is greatly simplified, and the dependence on tools is reduced. Meanwhile, when the sensor needs to be replaced, the plug operation can be conveniently carried out, and in addition, the display panel can be plugged for maintenance under the abnormal condition of the display screen, so that the operation is convenient and quick.

2. The plug-in type fixed gas detector provided by the utility model has the advantages that the plug-in operation of the probe does not need to be powered off, so that the normal operation of the whole monitoring system is not affected, the self-locking switch for controlling the power on and off of the main control board is also arranged, the safety of equipment is improved, meanwhile, the system is not required to be powered off even though the display screen is replaced by plugging, particularly, under the condition that a plurality of detectors form a network on the site of a user, the difficulty of independently powering off one detector is avoided, and the stability and the continuity of the monitoring system are ensured.

3. The pluggable fixed gas detector provided by the utility model has the advantages that the calibration and parameter operation are simple and convenient, the calibration and parameter operation of the detector are not required to be carried out on site, staff does not need to carry a standard gas cylinder to calibrate each instrument one by one, the first probe and the second probe can be calibrated and parameter adjustment in a centralized manner in a laboratory, the main control board only has the functions of data transmission and data display by users, the processing function of the main control board is weakened, the function of detecting and processing the sensing data is centralized in the probe of the detector, the calibrated probe can be directly plugged and used by splitting the processing signal circuit, and the difficulty of on-site operation in severe environments is avoided.

4. The pluggable fixed gas detector provided by the utility model has a function expansion function, and can be conveniently externally connected with equipment such as a light alarm and the like through the expansion plug-in component of the external spiral line through hole pipe, so that the expansion and flexible configuration of the function are realized, and the requirements of different scenes are met. Meanwhile, the first probe and the second probe are connected in a plugging mode, and the related protection sleeve, the metal cover body, the metal net and the like are designed, so that the sensor and the circuit board are effectively protected, and the durability of the detector is improved.

Drawings

Fig. 1 is a schematic perspective view of a plug-in type fixed gas detector according to an embodiment of the present utility model.

Fig. 2 is an exploded view of a plug-in type stationary gas detector according to an embodiment of the present utility model.

Fig. 3 is a schematic view of a first pipe structure according to an embodiment of the present utility model.

Fig. 4 is a schematic diagram of a self-locking switch according to an embodiment of the present utility model.

Fig. 5 is a schematic diagram of a light alarm according to an embodiment of the present utility model.

Wherein, 1, a shell, 101, a front cover, 102, a front sealing ring, 103, a middle shaft, 104, a rear cover, 105, a rear sealing ring, 106, a perspective window, 1031, a through pipe, 1032, a probe plug, 1033, an external thread through hole pipe, 1034, an extension plug, 1035, a plug, 1036, a light alarm, 1037, a connecting piece, 2, a main control board, 201, a display board, 202, a supporting board, 3, a detector, 301, a first probe, 3011, a first pipe body, 3012, a circuit board plug, 3013, a circuit board, 3014, a protective sleeve, 3015, a sensor plug, 3016, a threaded hole, 3017, a bolt, 302, a second probe, 3021, a second pipe body, 3022, a sensor plug, 3023, a metal cover body, 3024, a self-locking switch, 401, a key, 402, a limit groove, 403, a clamping hook, 404, a spring, 405, a first terminal, 406, a second terminal, 407, a third terminal, 408, a moving terminal, and a moving block.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1, a plug-in type fixed gas detector of the present embodiment includes:

The utility model provides a fixed gas detector of plug-in, includes casing 1, sets up in casing 1 be used for handling and transmission electric signal's main control board 2, establishes the hole on casing 1, with hole cooperation and with main control board 2 electric connection's probe plug 1032, probe plug 1032 is equipped with the jack outward in the one side in hole, peg graft and be used for detecting gaseous detector 3 on the jack, detector 3 is including the first probe 301 that is equipped with processing gas sensor electric signal circuit board 3013, peg graft under first probe 301 and be equipped with the second probe 302 of the gas sensor to circuit board 3013 adaptation.

When the gas sensor in the second probe 302 detects abnormal gas to cause current in a circuit to change, the circuit board 3013 in the first probe 301 recognizes that the current change generates an electric signal and sends the electric signal to the main control board 2 for processing, data display and data transmission are performed, when different gases are detected, the first probe 301 and the second probe 302 can be independently replaced, the first probe 301 and the second probe 302 are combined for use, the circuit board 3013 only adapting to the gas sensor of the second probe 302 is configured in the first probe 301, and the main control board 2 plays a role in data processing, display and transmission.

The shell 1 comprises a front cover 101, a front sealing ring 102 arranged in the front cover 101, a middle shaft 103 in threaded connection with the front cover 101, a rear cover 104 arranged behind the middle shaft 103 in threaded connection with the middle shaft 103, and a rear sealing ring 105 arranged in the rear cover 104, wherein the front cover 101 comprises a perspective window 106 provided with glass covering, the middle shaft 103 comprises an external threaded through hole pipe 1033 arranged on the side wall and a through pipe 1031 arranged on the lower side of the middle shaft 103, and the probe inserting and pulling member 1032 is fixedly arranged in the through pipe 1031. The sealing washer can separate steam and detect gaseous entering, influences the accuracy that detects.

The middle shaft 103 is internally and fixedly provided with a supporting plate 202, the main control board 2 is arranged in the supporting plate 202, a display board 201 for displaying detection results is inserted on the supporting plate 202, and the back of the display board 201 is connected with the main control board 2 through a wire.

An expansion plug 1034 is arranged in the external thread through hole pipe 1033, the expansion plug 1034 is electrically connected with the main control board 2, and a plug 1035 for closing the hole pipe is detachably screwed and installed on the external thread through hole pipe 1033.

When no external equipment is needed, the plug 1035 is used for plugging the outer spiral line through hole pipe, and the expansion plug 1034 realizes the expansion function.

The probe plug 1032 is internally provided with a self-locking switch 4 for controlling the on-off of the main control board 2, and the main control board 2 is provided with a relay controlled by the self-locking switch 4.

The self-locking switch 4 comprises a key 401, a moving block, a spring 404 and a clamping hook 403, wherein the moving block is arranged below the key 401 and fixedly connected with the key 401, one end of the clamping hook 403 is connected with the spring 404, the other end of the clamping hook is arranged in a limiting groove 402, the limiting groove 402 is set to be in a specific shape, when the key 401 is pressed down, the clamping hook 403 can be arranged at different positions of the limiting groove 402 under the force of the spring 404, the moving block moves up and down, a moving terminal 408 is fixed on two sides of the moving block, along with the moving of the moving block, the moving terminal moves up and down, a first terminal 405, a second terminal 406 and a third terminal 407 are arranged on two sides of the moving block, the third terminal 407 is connected with a ground wire, when the key 401 is sprung off, the moving terminal 408 contacts the first terminal 405 and the second terminal 406, when the key 401 is pressed down again, the clamping hook 403 is arranged in the lower groove, the key 401 is locked, the moving three-shaped contacts the first terminal 405 and the third terminal 407, and is in a conductive state, and the whole power-off device is realized by the relay 2 in the conductive control center shaft 103.

Because the plugging operation of the probe does not need to be powered off, the normal operation of the whole monitoring system is not affected, and the self-locking switch 4 for controlling the main control board 2 to be powered on and off is also arranged, so that the safety of the equipment is improved, and meanwhile, the system is not required to be powered off even though the display screen is replaced by plugging, particularly, under the condition that a plurality of detectors 3 form a network on the site of a user, the difficulty of independently powering off one detector 3 is avoided, and the stability and the continuity of the monitoring system are ensured.

The first probe 301 includes a first tube 3011, a circuit board 3013 plug 3012 electrically connected to the circuit board 3013 and used for plugging in the probe plug 1032, a protective sleeve 3014 disposed in the first tube 3011 and used for protecting the circuit board 3013, and a sensor plug 3015 connected to the second probe 302.

The first pipe body 3011 is sleeved in the through pipe 1031, a threaded hole 3016 is formed in the side wall of the through pipe 1031, and the first probe 301 and the through pipe 1031 are fastened and connected through a bolt 3017.

The second probe 302 includes a second pipe 3021, a sensor plug 3022 disposed in the second pipe 3021 and used for plugging in the sensor plug 3015, and the sensor plug 3022 is electrically connected to the gas sensor.

The second probe 302 further comprises a metal cover 3023 arranged at the end for collecting the detection gas, a metal net 3024 arranged in the metal cover 3023 for isolating the outside from the gas sensor, and a vent hole is arranged on the metal cover 3023. The plug connection of the first probe 301 and the second probe 302 and the design of the related protective sleeve 3014, the metal cover 3023, the metal net 3024 and the like effectively protect the sensor and the circuit board 3013 and improve the durability of the detector 3.

According to the pluggable fixed gas detector provided by the embodiment, the installation and maintenance are convenient, the detector 3 adopts a pluggable structure, the probe is installed and replaced without complex steps, the detector 3 is only required to be inserted into the jack through the design of the probe plug 1032 and the plug, the installation process is greatly simplified, and the dependence on tools is reduced. Meanwhile, when the sensor needs to be replaced, the plug operation can be conveniently carried out, and in addition, the display panel 201 can be plugged for maintenance under the abnormal condition of the display screen, so that the operation is convenient and quick.

When the calibration is needed, only the combination of the first probe 301 and the second probe 302 is calibrated, the on-site calibration is not needed, the centralized calibration and parameter adjustment are performed on the first probe 301 and the second probe 302 in a laboratory, the main control board 2 only has the functions of data transmission and data display for users, the processing function of the main control board 2 is weakened, the function of detecting and processing the sensing data is centralized in the probe of the detector 3, the calibrated probe can be directly spliced and used, and the difficulty of on-site operation in severe environments is avoided.

Example 2

The difference between this embodiment and embodiment 1 is that this embodiment provides a plug-in type fixed gas detector.

The external light alarm 1036 of external spiral line through hole pipe, the light alarm 1036 includes the alarm lamp, with the expansion plug of external screw line through hole pipe 1033 grafting, screw in the connecting piece 1037 on the external spiral line through hole pipe.

The external light alarm 1036 and other devices can be conveniently connected with the external light alarm 1034 through the expansion plug 1034 of the external spiral through hole pipe, so that the expansion and flexible configuration of functions are realized, and the requirements of different scenes are met.

The above embodiments are not intended to limit the scope of the utility model, so that the equivalent changes of the structure, shape and principle of the utility model are covered by the scope of the utility model.

Claims

1. The utility model provides a fixed gas detector of plug-in, its characterized in that, includes casing (1), sets up main control board (2) that are used for handling and transmitting the signal in casing (1), establishes hole on casing (1), with hole cooperation and with main control board (2) electric connection's probe plug-in components (1032), probe plug-in components (1032) are in hole is equipped with the jack outward on the one side, peg graft detector (3) that are used for detecting gas on the jack, detector (3) are including first probe (301) that are equipped with processing gas sensor signal circuit board (3013), peg graft under first probe (301) and be equipped with second probe (302) to the gas sensor of circuit board (3013) adaptation.

2. The pluggable fixed gas detector according to claim 1, wherein the housing (1) comprises a front cover (101), a front sealing ring (102) arranged in the front cover (101), a middle shaft (103) in threaded connection with the front cover (101), a rear cover (104) arranged behind the middle shaft (103) in threaded connection with the middle shaft (103), a rear sealing ring (105) arranged in the rear cover (104), the front cover (101) comprises a perspective window (106) with glass covering, the middle shaft (103) comprises an external threaded through hole tube (1033) arranged on the side wall, a through tube (1031) arranged on the lower side of the middle shaft (103), and the probe pluggable unit (1032) is fixedly arranged in the through tube (1031).

3. The pluggable fixed gas detector according to claim 2, wherein a supporting plate (202) is fixedly installed in the center shaft (103), the main control board (2) is arranged in the supporting plate (202), a display board (201) for displaying detection results is inserted on the supporting plate (202), and the back of the display board (201) is connected with the main control board (2) through a wire.

4. The pluggable fixed gas detector according to claim 2, wherein an expansion plug (1034) is arranged in the externally threaded through hole pipe (1033), the expansion plug (1034) is electrically connected with the main control board (2), and a plug (1035) for sealing the through hole pipe is detachably screwed and installed on the externally threaded through hole pipe (1033).

5. The pluggable fixed gas detector of claim 2, wherein the externally threaded through hole tube (1033) is externally connected with a light alarm (1036), the light alarm (1036) comprises an alarm lamp, an expansion plug plugged with the externally threaded through hole tube (1033), and a connecting piece (1037) screwed on the externally threaded through hole tube (1033).

6. The pluggable fixed gas detector according to claim 1, wherein a self-locking switch (4) for controlling the main control board (2) to be powered on and off is arranged in the probe pluggable component (1032), and a relay controlled by the self-locking switch (4) is arranged on the main control board (2).

7. The pluggable stationary gas detector as claimed in claim 2, wherein the first probe (301) comprises a first tube (3011), a circuit board (3013) plug (3012) electrically connected to the circuit board (3013) for plugging onto the probe plug (1032), a protective sleeve (3014) provided in the first tube (3011) for protecting the circuit board (3013), and a sensor plug (3015) pluggable to the second probe (302).

8. The pluggable fixed gas detector as claimed in claim 7, wherein the first tube body (3011) is sleeved in the through tube (1031), a threaded hole (3016) is formed in the side wall of the through tube (1031), and the first probe (301) and the through tube (1031) are fastened and connected through bolts (3017).

9. The pluggable stationary gas detector as claimed in claim 7, wherein the second probe (302) comprises a second tube (3021), a sensor plug (3022) provided in the second tube (3021) for plugging in a sensor plug (3015), the sensor plug (3022) being electrically connected to the gas sensor.

10. The plug-in type fixed gas detector according to claim 9, wherein the second probe (302) further comprises a metal cover (3023) arranged at the end for collecting the detected gas, a metal mesh (3024) arranged in the metal cover (3023) for isolating the outside from the gas sensor, and a vent hole is arranged on the metal cover (3023).