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CN-224232238-U - Valve well combustible gas detector

CN224232238UCN 224232238 UCN224232238 UCN 224232238UCN-224232238-U

Abstract

The utility model provides a valve well combustible gas detector, which is characterized in that an upper cover is sleeved at the upper end of a shell, the inner wall of the upper cover is connected with the outer wall of the shell through threads, a lithium battery and a controller are fixed at the upper part of the shell, an antenna is fixed at the bottom end of the shell, the antenna is in communication connection with the controller, the shell comprises a front shell and a rear shell which are integrally formed in front and back, the lower end of the front shell is lower than the lower end of the rear shell, a water level detection sensor is fixed at the lower end of the front shell through threads, a laser methane sensor is fixed at the lower end of the rear shell through threads, cylindrical air columns are arranged at the lower ends of the water level detection sensor and the laser methane sensor, the water level detection sensor and the laser methane sensor are powered by the lithium battery, and the upper cover, the gas sensor and the water level sensor are in airtight connection with a shell through threads.

Inventors

  • ZHANG LIUHAI
  • YUAN YAO
  • WANG FENG
  • HUA JINGYI
  • WANG FEI

Assignees

  • 上海航天智慧能源技术有限公司

Dates

Publication Date
20260512
Application Date
20250417

Claims (7)

  1. 1. The utility model provides a valve well combustible gas detector which is characterized in that, including upper cover (1), lithium cell (4), casing (6), controller (9), water level detection sensor (13), laser methane sensor (14) and antenna (15), upper cover (1) cup joint in the upper end of casing (6), the inner wall of upper cover (1) with the outer wall of casing (6) passes through threaded connection, lithium cell (4) with controller (9) are fixed in the upper portion of casing (6), antenna (15) are fixed in the bottom of casing (6), antenna (15) with controller (9) communication connection, casing (6) are including front housing (61) and back casing (62) of front and back integrated into one piece, the lower extreme of front housing (61) is less than the lower extreme of back casing (62), water level detection sensor (13) are fixed in the lower extreme of front housing (61) through threaded connection, methane sensor (14) are fixed in the lower extreme of casing (14) through threaded connection methane sensor (14) and laser methane sensor (14) are equipped with the water level detection sensor (14) and the laser methane sensor (14) are all by the laser sensor (14), the water level detection sensor (13) and the laser methane sensor (14) are both in communication connection with the controller (9).
  2. 2. The valve well combustible gas detector according to claim 1, wherein the water level detection sensor (13) comprises a mounting block (131) and a water level probe (132), the mounting block (131) and the water level probe (132) are sequentially and fixedly connected up and down, the upper end of the mounting block (131) is in threaded connection with the lower end of the front shell (61), and the lower end of the water level probe (132) is provided with a cylindrical air column.
  3. 3. The valve well combustible gas detector of claim 2 wherein the lower end of the mounting block (131) is sleeved with a water level sensor sealing ring (133), and the front housing (61) and the mounting block (131) are sealed by the water level sensor sealing ring (133).
  4. 4. The valve well combustible gas detector of claim 1, wherein the laser methane sensor (14) comprises a laser gas probe (141) and a waterproof cylinder (142), the laser gas probe (141) and the waterproof cylinder (142) are sequentially and fixedly connected up and down, the upper end of the laser gas probe (141) is in threaded connection with the lower end of the rear shell (62), and the lower end of the waterproof cylinder (142) is provided with a cylindrical air column.
  5. 5. The valve well combustible gas detector of claim 4 wherein an upper end of the laser gas probe (141) is sleeved with a gas probe seal ring (143), and the rear housing (62) and the laser gas probe (141) are sealed by the gas probe seal ring (143).
  6. 6. The valve well combustible gas detector of claim 5, wherein an inner wall of an upper end of the waterproof cylinder (142) and an outer wall of a lower end of the laser gas probe (141) are connected through threads, and the waterproof cylinder (142) and the laser gas probe (141) are sealed through a waterproof cylinder sealing ring (144).
  7. 7. The valve well combustible gas detector of claim 1 wherein a well lid displacement switch (12) is provided at a lower end of the rear housing (62), and an upper end of the well lid displacement switch (12) and a lower end of the rear housing (62) are connected by screw threads.

Description

Valve well combustible gas detector Technical Field The utility model relates to the technical field of gas detectors, in particular to a valve well combustible gas detector. Background The flammable gas in urban gas valve well, airtight space is monitored difficultly, old facility hidden danger is many, once reveal and will cause large tracts of land calamities, the stability requirement to gas detector is very high, need a lithium cell power supply, support wireless communication's gas detector to promote gas detector's life-span, protection, explosion-proof, pollution-proof, communication reliability. Disclosure of Invention The utility model aims to provide a valve well combustible gas detector, wherein a section of air column is arranged at the lower parts of a gas sensor and a water level sensor to play a role in isolation, so that the waterproof and pollution-proof performances are enhanced. In order to achieve the above object, the technical scheme of the present utility model is as follows: The utility model provides a valve well combustible gas detector, includes upper cover, lithium cell, casing, controller, water level detection sensor, laser methane sensor and antenna, the upper cover overlap in the upper end of casing, the inner wall of upper cover with the outer wall of casing passes through threaded connection, the lithium cell with the controller is fixed in the upper portion of casing, the antenna is fixed in the bottom of casing, the antenna with the controller communication is connected, the casing includes preceding casing and the back casing of front and back integrated into one piece, the lower extreme of preceding casing is less than the lower extreme of back casing, water level detection sensor passes through threaded connection and is fixed in the lower extreme of preceding casing, laser methane sensor passes through threaded connection and is fixed in the lower extreme of back casing, water level detection sensor and laser methane sensor's lower extreme all is equipped with the tubular air column, water level detection sensor with laser methane sensor is by the lithium cell power supply, water level detection sensor with the communication methane sensor all is connected with laser methane sensor. Further, the water level detection sensor comprises a mounting block and a water level probe, wherein the mounting block is sequentially and fixedly connected with the water level probe from top to bottom, the upper end of the mounting block is connected with the lower end of the front shell through threads, and the lower end of the water level probe is provided with a cylindrical air column. Further, the lower end of the mounting block is sleeved with a water level sensor sealing ring, and the front shell and the mounting block are sealed through the water level sensor sealing ring. Further, the laser methane sensor comprises a laser gas probe and a waterproof cylinder, wherein the laser gas probe and the waterproof cylinder are sequentially and fixedly connected up and down, the upper end of the laser gas probe is connected with the lower end of the rear shell through threads, and the lower end of the waterproof cylinder is provided with a cylindrical air column. Further, the upper end of the laser gas probe is sleeved with a gas probe sealing ring, and the rear shell and the laser gas probe are sealed through the gas probe sealing ring. Further, the inner wall of waterproof section of thick bamboo upper end and the outer wall of laser gas probe lower extreme pass through threaded connection, waterproof section of thick bamboo with seal through waterproof section of thick bamboo sealing washer between the laser gas probe. Further, the lower extreme of back casing is equipped with well lid displacement switch, well lid displacement switch's upper end with the lower extreme of back casing passes through threaded connection. According to the utility model, the gas sensor and the water level sensor are integrated in the shell, the upper cover, the gas sensor and the water level sensor are hermetically connected with the shell through threads, and a section of air column is arranged at the lower parts of the gas sensor and the water level sensor to play an isolating role, so that sewage can not contact the sensor body, and the product has good waterproof and pollution-proof performances. Drawings FIG. 1 is an overall block diagram of the present utility model; FIG. 2 is a blasting diagram of the present utility model; Fig. 3 is a block diagram of an antenna of the present utility model; FIG. 4 is a side elevational view of the present utility model; FIG. 5 is a block diagram of a water level detecting sensor according to the present utility model; FIG. 6 is a block diagram of a laser methane sensor according to the present utility model; Fig. 7 is a structural diagram of the manhole cover displacement switch of the present utility model. Reference numerals: an upper cover 1, a top sealing ri