CN108872334B

CN108872334B - Gas detector

Info

Publication number: CN108872334B
Application number: CN201810908695.1A
Authority: CN
Inventors: 李恒康; 李泰锋
Original assignee: Zhenjiang Southern Mining Equipment Co ltd
Current assignee: Zhenjiang Southern Mining Equipment Co ltd
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2020-11-10
Anticipated expiration: 2038-08-10
Also published as: CN108872334A

Abstract

The invention discloses a gas detector, aiming at providing a gas detector with a sensor convenient to replace, the technical proposal is characterized by comprising a shell, a battery pack for supplying power is arranged in the shell, a control computer is connected on the battery pack, the control computer is connected with a lower computer, the lower computer is further connected with a sensing device, the sensing device comprises a supporting plate, an extension plate, a groove, a clamping groove, a sliding groove, a connecting block, a female joint, a sensing box, an electrochemical sensor and a male joint, wherein the supporting plate is located on two sides of the shell, the extension plate is connected with the supporting plate in a rotating mode, the groove is located between the extension plates, the clamping groove is located on the inner walls of the two sides of the two ends of the groove, the sliding groove is located on the inner wall of the clamping groove, the connecting block is arranged on the two sides of the sliding block and matched with the sliding groove, the female joint is located in the connecting block and connected with the lower computer, the sensing box.

Description

Gas detector

Technical Field

The invention relates to the field of gas detection equipment, in particular to a gas detector.

Background

The gas detector is an instrument tool for detecting gas leakage concentration, which comprises: portable gas detectors, hand-held gas detectors, stationary gas detectors, online gas detectors, and the like. Gas sensors are used to detect the types of gases present in the environment, gas sensors are sensors used to detect the composition and content of gases.

It is generally considered that the definition of the gas sensor is based on the classification of the detection object, that is, all sensors for detecting the composition and concentration of gas are called gas sensors, regardless of whether it is a physical method or a chemical method. For example, sensors that sense gas flow are not considered gas sensors, but thermal conductivity gas analyzers are among the important gas sensors, although they sometimes use a generally consistent sensing principle.

At present, chinese patent publication No. CN104316112A discloses a multi-gas detector, which includes: a housing having an air inlet and an air outlet therein; the detection box is internally provided with a plurality of electrochemical gas sensors in a cavity; the air inlet pipe is communicated with the air inlet and the detection box; a filter disposed at a front side or a rear side of the air inlet; the gas outlet pipe is communicated with the detection box and the gas outlet and is provided with a sampling pump; the lower computer is connected with each electrochemical gas sensor; and the control computer is provided with a touch screen and is connected with the lower computer.

Although such a multi-gas detector has a plurality of electrochemical gas sensors, it can simultaneously detect the concentrations of a plurality of gases, so that a single device can simultaneously detect the concentrations of a plurality of gases. The electrochemical gas sensor is particularly suitable for occasions with limited space and needs to measure the concentration of various gases, but the inside of the electrochemical gas sensor usually detects the gases in an electrochemical mode, so that the electrochemical gas sensor belongs to consumable materials, has short service life, has the service life of 1-2 years in a general environment, needs to be replaced in 3-6 months in a severe environment, and has higher maintenance cost.

Disclosure of Invention

The technical problem to be solved by the invention is that the electrochemical sensor belongs to consumable materials, so that the service life is short, and the maintenance cost is high.

In order to solve the technical problems, the invention provides a gas detector which comprises a shell, wherein a battery pack for supplying power is arranged in the shell, the battery pack is connected with a control computer, the control computer is connected with a lower computer, the lower computer is also connected with a sensing device, the sensing device comprises supporting plates positioned on two sides of the shell, extending plates rotatably connected with the supporting plates, grooves positioned between the extending plates, clamping grooves positioned on two sides of two ends of the grooves, sliding grooves positioned on the inner walls of the clamping grooves, sliding blocks positioned on two sides of the sliding grooves and matched with the sliding grooves, connecting blocks positioned in the connecting blocks and connected with the lower computer, electrochemical sensors positioned on two ends of the extending plates and connected through connecting devices, and sub-connectors positioned on two sides of the electrochemical sensors and matched with the sub-connectors.

The technical effects are as follows: the arranged sensing device can effectively plug the whole electrochemical sensor into the clamping groove under the rotation of the extension plate, meanwhile, in the connecting block on the clamping groove, the female joint is matched with the male joint on the sensor, so that the connecting block is moved, the male joint and the female joint can be connected, the whole sensor can be inserted into the connecting block, the whole sensor is relatively conveniently inserted, the detection of a user is convenient, when different gases are required to be detected, the extension plate can be turned over, another sensor below the extension plate is inserted into the clamping groove below the groove, the sensor can be fixed to detect the gases in the same mode, even if the sensor fails in the long-time use process, the sensor can be detached and replaced through the connecting device, the use of the user is convenient, and on the other hand, after the sensor at one end of the extension plate is inserted into the connecting block to work, the other end of the shell is certainly far away from the groove, and at the moment, because the sensor at one end is fixed, the other sensor forms a certain angle with the shell, so that the shell can be effectively and stably placed on the platform, and the support is convenient.

The technical scheme of the invention is further defined as follows: the connecting block is kept away from female joint one end and still is equipped with the limiting plate, the limiting plate both sides are equipped with the first cardboard perpendicular with the limiting plate, it is equipped with the first card hole that matches with first cardboard to lie in connecting block both sides on the casing.

Furthermore, the connecting device comprises a turnover plate hinged with the top end of the extension plate, a through hole which is positioned on the turnover plate and used for penetrating the sub-joint and a limit nut in threaded connection with the outer wall of the sub-joint.

The gas detector is characterized in that the edge of the clamping groove is also provided with a sealing device, and the sealing device comprises a cover plate hinged with the edge of the clamping groove, a second clamping plate arranged on the cover plate and a second clamping hole arranged on the surface of the clamping groove and matched with the second clamping plate.

The gas detector, casing both ends still are equipped with the bottom plate that is used for the support. And bottom plates for supporting are further arranged at the two ends of the shell.

The gas detector is characterized in that finger grooves are formed in the edges of the two sides of the shell.

The gas detector is characterized in that a display screen electrically connected with a control computer is further arranged on the surface, far away from the groove, of the shell.

The gas detector, sensing box surface still are equipped with the breather pipe, threaded connection has the closing cap on the breather pipe.

The invention has the beneficial effects that:

(1) in the invention; the limiting plate can effectively clamp the whole connecting block in the clamping groove, so that a female joint on the connecting block and a sub-joint on the sensor are stably connected together, and looseness caused by shaking and the like is reduced; the connecting device can facilitate a user to detach the whole sensing box and the sensor in the sensing box, and rapid detachment and installation are carried out under the action of the limiting nut, so that the whole operation is simple, and the replacement is convenient.

(2) In the invention; the sealing cover device can effectively fix the whole sensing box in the clamping groove, so that a sensor in the sensing box can be stably connected with the connecting block, and the sensor is installed; the bottom plate that is equipped with can be when one end sensor installation goes up to another section sensing box is the basis, and the bottom plate of cooperation casing bottom is effectual places whole equipment on the platform.

(3) In the invention; the finger grooves are convenient for a user to hold the shell; the display screen can be used for effectively analyzing data such as the sensor and the like according to the control computer, so that corresponding conditions are reflected on the display screen and are provided for a user to observe.

(4) In the invention; the breather pipe that is equipped with can be better make during the gas enters into inside sensor when detecting to take place corresponding reaction so that the sensor detects gaseous content, the closing cap then can effectually protect the sensor at the in-process that the sensor does not use, reduces to react with the composition in the air, thereby effectual life who promotes the sensor.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is another angle schematic of the present invention;

fig. 3 is a schematic diagram for showing the structure of an electrochemical sensor according to the present invention.

In the figure, 1, a housing; 2. a battery pack; 3. a control computer; 4. a lower computer; 5. a sensing device; 51. a support plate; 52. an extension plate; 53. a groove; 54. a card slot; 55. a chute; 56. a slider; 57. connecting blocks; 58. a female joint; 59. a connecting device; 510. a sensing box; 511. an electrochemical sensor; 512. a sub-junction; 6. a limiting plate; 7. a first clamping plate; 8. a first card hole; 9. a turnover plate; 10. a limit nut; 11. a capping device; 111. a cover plate; 112. a second clamping plate; 113. a second card hole; 12. a base plate; 13. a finger groove; 14. a display screen; 15. a breather pipe; 16. and (7) sealing the cap.

Detailed Description

The gas detector provided by the embodiment has the structure shown in fig. 1 to 3, and comprises a casing 1, bottom plates 12 for supporting are further arranged at two ends of the casing 1, finger grooves 13 are further arranged at two side edges of the casing 1, a battery pack 2 for supplying power is arranged in the casing 1, a control computer 3 is connected to the battery pack 2, a lower computer 4 is connected to the control computer 3, a sensing device 5 is further connected to the lower computer 4, the sensing device 5 comprises supporting plates 51 which are arranged on two sides of the shell 1 and are perpendicular to the shell 1, the supporting plate 51 is provided with extending plates 52 in a rotating connection way, the shell 1 between the extending plates 52 is also provided with a groove 53, the side of the shell 1 far away from the groove 53 is also provided with a display screen 14 connected with a control computer 3, two ends of the groove 53 are respectively provided with a connecting block 57, sliding blocks 56 are arranged on two sides of the connecting block 57, and sliding grooves 55 matched with the sliding blocks 56 are arranged on the inner walls of the two sides of the groove 53. And a female connector 58 connected to the lower machine 4 is provided in the connecting block 57. Meanwhile, a sensing box 510 connected through a connecting device 59 is arranged on the top pipe of the extension plate 52. Connecting block 57 keeps away from female joint 58 one end and still is equipped with limiting plate 6, and limiting plate 6 both sides are equipped with the first cardboard 7 of limiting plate 6 vertically, lie in connecting block 57 both sides on casing 1 and be equipped with the first card hole 8 that matches with first cardboard 7, the inserting of first cardboard 7 on the limiting plate 6 of being convenient for to the condition that connecting block 57 can't stabilize and be connected with electrochemical sensor 511 appears in the reduction.

The connecting device 59 comprises turnover plates 9 hinged with two sides of the top end of the extension plate 52, a sensing box 510 is arranged between the turnover plates 9, an electrochemical sensor 511 is arranged in the sensing box 510, a vent pipe 15 is also arranged on the surface of the sensing box 510, a sealing cap 16 is connected on the vent pipe 15 in a threaded manner, sub-joints 512 penetrating through the sensing box 510 are arranged on two sides of the electrochemical sensor 511, through holes for penetrating through the sub-joints 512 are arranged on the turnover plates 9, and meanwhile, a limiting nut 10 in threaded connection with the outer walls of the sub-joints 512 is arranged on the outer walls of the turnover plates 9, so that the whole sensing box 510 can be effectively fixed between the turnover plates 9. And the edge of the clamping groove 54 is also provided with a sealing device 11, the sealing device 11 comprises a cover plate 111 hinged with the edge of the clamping groove 54, a second clamping plate 112 arranged on the cover plate 111 and a second clamping hole 113 arranged on the surface of the clamping groove 54 and matched with the second clamping plate 112, so that when the extension plate 52 is used for installing the electrochemical sensor 511 into the groove 53 and is connected by the connecting block 57, the electrochemical sensor 511 can be covered by the sealing device 11, the whole sensing box 510 is effectively protected, and a hole for allowing the air pipe 15 to pass through is arranged on the cover plate 111.

The main working principle is that the sealing cap 16 on the vent pipe 15 can be sealed in the inapplicable process, so as to reduce the loss of the electrochemical sensor 511, when the device is needed, the sealing cap 16 can be opened, the extension plate 52 is rotated to clamp the sensing box 510 at the top end of the extension plate 52 into the groove 53, the connecting blocks 57 at the two ends of the groove 53 move, so that the female connector 58 and the male connector 512 are connected together, so that the sensor can be smoothly connected into the whole device, when the connecting block 57 of the limit plate 6 moves to a specified position, the first clamping plate 7 on the limit plate 6 is inserted into the first clamping hole 8, the cover plate 111 can also be turned over, so that the second clamping plate 112 on the cover plate 111 is clamped into the second clamping hole 113 on the housing 1, the connecting block 57 and the sensing box 510 are effectively sealed, so as to complete the installation of the whole device, and effectively fix the corresponding position of the connecting block 57, so that the connection block 57 and the sensing box 510 are firmly connected together, and at this time, the cover can be covered and the corresponding data can be reflected on the display screen 14 through the lower computer 4 and the control computer 3, and at this time, the sensing box 510 at the other end of the extension plate 52 is matched with the bottom plate 12 at the bottom of the shell 1 to form a supporting point, so that the whole device can be placed on a platform.

When the detection gas needs to be replaced, the extension plate 52 can be reversed, the sensor box 510 above is taken out, the sensor box 510 below is placed in the groove 53 below according to the mode, so that replacement is completed, and after the service life of the whole electrochemical sensor 511 is over, the limiting nuts 10 on two sides of the whole sensor box 510 can be detached, so that the sensor box 510 is taken down, a new sensor box 510 is replaced, the turnover plates 9 on two sides penetrate through the sub-connectors 512 on two sides of the sensor box 510, and the limiting nuts 10 are installed, so that replacement of the sensor box 510 is completed.

In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a gas detector, includes casing (1), be equipped with group battery (2) that are used for the power supply in casing (1), be connected with control computer (3) on group battery (2), be connected with host computer (4), its characterized in that on control computer (3): the lower computer (4) is also connected with a sensing device (5), the sensing device (5) comprises supporting plates (51) positioned at two sides of the shell (1), extending plates (52) rotatably connected with the supporting plates (51), grooves (53) positioned between the extending plates (52), clamping grooves (54) positioned at two sides of two ends of each groove (53), sliding grooves (55) positioned on the inner walls of the clamping grooves (54), connecting blocks (57) which are provided with sliding blocks (56) matched with the sliding grooves (55) at two sides and positioned in the clamping grooves (54), a female joint (58) positioned in the connecting blocks (57) and connected with the lower computer (4), sensing boxes (510) positioned at two ends of the extending plates (52) and connected through connecting devices (59), electrochemical sensors (511) positioned in the sensing boxes (510) and sub-joints (512) positioned at two sides of the electrochemical sensors (511) and matched with the female joints (58), connecting device (59) include with extension board (52) top articulated returning face plate (9), be located returning face plate (9) on be used for passing the through-hole of sub-joint (512) and with sub-joint (512) outer wall threaded connection's stop nut (10), sensing box (510) surface still is equipped with breather pipe (15), threaded connection has closing cap (16) on breather pipe (15), sensing box (510) are including being located the sensing box of extension board (52) top and the sensing box of extension board (52) below.

2. The gas detector of claim 1, wherein: connecting block (57) keep away from female joint (58) one end and still be equipped with limiting plate (6), limiting plate (6) both sides are equipped with first cardboard (7) perpendicular with limiting plate (6), it is equipped with first card hole (8) that match with first cardboard (7) to lie in connecting block (57) both sides on casing (1).

3. A gas detection instrument according to claim 2, wherein: the edge of the clamping groove (54) is also provided with a sealing device (11), and the sealing device (11) comprises a cover plate (111) hinged with the edge of the clamping groove (54), a second clamping plate (112) arranged on the cover plate (111) and a second clamping hole (113) arranged on the surface of the clamping groove (54) and matched with the second clamping plate (112).

4. A gas detection instrument according to claim 3, wherein: and bottom plates (12) for supporting are further arranged at two ends of the shell (1).

5. A gas detection instrument according to claim 4, wherein: finger grooves (13) are further formed in the edges of the two sides of the shell (1).

6. A gas detection instrument according to claim 5, wherein: and a display screen (14) electrically connected with the control computer (3) is further arranged on one surface of the shell (1) far away from the groove (53).