CN214953927U

CN214953927U - Gas detection box

Info

Publication number: CN214953927U
Application number: CN202120900903.0U
Authority: CN
Inventors: 陈雨保; 方雷
Original assignee: Suzhou Chuangsite Automation Equipment Co ltd
Current assignee: Suzhou Chuangsite Automation Equipment Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-11-30
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a gas detection box, which comprises a box body, a detection jig and a carrier, wherein the top of the box body is provided with a gas inlet, the box body is provided with a convection fan, and the bottom of the box body is provided with a test channel; a movable plate is arranged in the box body and driven to lift by a jig cylinder, two sides of the detection jig are arranged on the opposite inner side walls of the movable plate in a sliding mode, an upper detection probe is arranged at the bottom of the detection jig, and a door is arranged on the box body and located in the extending direction of the sliding groove; the carrier can be driven by the lifting mechanism to lift in the test channel; the carrier up end is provided with a plurality of detection module, is provided with two elasticity fixture blocks on every detection module, is provided with down test probe, power probe on every detection module, and the carrier embeds there is the conductor, and the carrier bottom is provided with the copper, and lower test probe, power probe switch on through conductor and copper. The utility model discloses automatic intensity is high, has improved operation personnel's security performance, has improved detection case life.

Description

Gas detection box

Technical Field

The utility model relates to a gas detection case.

Background

Before the natural gas alarm leaves a factory, a circuit board of the natural gas alarm needs to be subjected to aging test, a certain severe environment is simulated, the circuit board is electrified for 24 hours, an over-current exceeding a rated current and an over-voltage exceeding a rated voltage are applied to the circuit board to simulate the severe environment, the aged circuit board is placed in a closed box, and natural gas or coal gas with a certain concentration is electrified to detect whether a sensor can give an alarm or not.

At present, the aging test of the circuit board of the natural gas alarm requires personnel to manually place the circuit board to be tested in a closed detection box, so that danger exists; and the probe for detection is not easy to replace after being damaged.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a gas detection box which has high automation strength, reduces the risk of operating personnel and can prolong the service life of the detection box.

In order to achieve the above purpose, the utility model discloses a technical scheme is: a gas detection box comprises a box body, a detection jig and a carrier, wherein a gas inlet is formed in the top of the box body, a convection fan is arranged on the box body, and a test channel is formed in the bottom of the box body; a movable plate is arranged in the box body and driven to lift by a jig cylinder, a pair of sliding grooves are formed in the opposite inner side walls of the movable plate, two sides of the detection jig are arranged in the sliding grooves in a sliding mode, an upper detection probe is arranged at the bottom of the detection jig, and a door is arranged on the box body and located in the extending direction of the sliding grooves; the carrier is positioned below the movable plate and is driven by the lifting mechanism to control the lifting mechanism to lift in the test channel; the carrier up end is provided with a plurality of detection module, every the relative both ends of detection module all are provided with an elasticity fixture block at least, every detection module is last to be provided with down test probe, power probe, the carrier embeds there is the conductor, the carrier bottom is provided with the copper, test probe, power probe switch on through conductor and copper down.

The utility model discloses gaseous detection case's beneficial effect is, the circuit board is placed on the carrier to in the elevating system by the carrier bottom drives its test channel to the box, tool cylinder control fly leaf drives detection tool and moves down, carrier and detection tool back that targets in place, go up test probe, lower test probe and power probe switch on, meanwhile, the gas inlet at top puts in natural gas, carbon monoxide etc. toward the box in, detect, replace manual work, need not manual operation, the security performance when having improved the test. If the detection probe needs to be replaced, the door is opened, and the detection jig in the sliding groove of the movable plate is pulled out for replacement; if the lower detection probe on the carrier is damaged, the carrier is replaced before being driven to the test channel, so that the service life of the detection box is prolonged; the arrangement of the convection fan ensures that the concentration of natural gas and carbon monoxide in the box body is uniform, and the detection precision is ensured.

Preferably, a seal is arranged between the movable plate and the carrier. So as to prevent the natural gas or coal gas with certain concentration from being discharged from the gap between the movable plate and the carrier during the test, and further influence the sensitivity test of the natural gas alarm.

Preferably, the sealing element is made of rubber and arranged on the lower end face of the box body, a supporting frame is arranged on the periphery of the upper end face of the carrier, and the rubber can be in contact with the supporting frame. When the sealing detection is carried out, the rubber tightly abuts against the supporting frame.

Preferably, the elasticity fixture block includes fastener, supporting seat, the supporting seat is fixed on the carrier, the fastener passes through the torsional spring and is connected with the supporting seat rotation, the top of fastener is provided with the bending hook, the elastic drive bending hook of torsional spring is close to the up end of supporting seat all the time and leaves the predetermined distance between the two. The supporting seat provides support for the circuit board, the circuit board is limited in the clearance between the bending hook and the supporting seat, the bending hook is forced to be always attached to the upper end face of the circuit board by the elasticity of the torsional spring, and the circuit board is taken out from the bending hook.

Preferably, elevating system includes lift cylinder, direction subassembly, the lift cylinder sets up in the carrier bottom, the telescopic shaft of lift cylinder is down, the box below is fixed with the base, the bottom of telescopic shaft is connected fixedly with the backup pad of base, the direction subassembly sets up between carrier and backup pad. The setting of direction subassembly does benefit to carrier steady operation.

Preferably, both sides of the detection jig are provided with turnover edges, the turnover edges are provided with pulleys, and the detection jig is arranged in the sliding groove in a sliding mode through the pulleys. Through the arrangement of the pulleys on the two sides, the detection jig can be inserted into the sliding groove of the movable plate conveniently.

Preferably, the turnover edge is provided with a groove, the movable plate is provided with a connecting plate, the connecting plate is detachably provided with a positioning pin, and the positioning pin is inserted into the groove. The matching arrangement of the positioning pin and the groove is utilized, so that the inserted detection jig is easy to position.

Drawings

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is a perspective view of the present embodiment after unloading the box body;

FIG. 3 is a perspective view of the bottom of the carrier in this embodiment;

FIG. 4 is a perspective view of the interior of the carrier of this embodiment;

FIG. 5 is a perspective view of the upper end surface of the carrier in this embodiment;

FIG. 6 is a perspective view of the inspection jig of the present embodiment;

fig. 7 is a perspective view of the movable plate in the present embodiment.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1-7, the gas detection box of the present embodiment includes a box body 1, a detection fixture 2, and a carrier 3, wherein a gas inlet 4 is disposed at a top of the box body 1, the gas inlet 4 is used for feeding detection gas such as natural gas, carbon monoxide, etc. into the box body 1, and a convection fan 5 is disposed on the box body 1, so that the fed gas can be dispersed to each corner in the box body 1, and uniformity of concentration is ensured.

Be provided with fly leaf 6 in the box 1, fly leaf 6 is gone up and down by tool cylinder 6c drive, be provided with a pair of spout 6b on the relative inside wall of fly leaf 6, the both sides of detection tool 2 slide and set up in

spout

6b, 2 bottoms of detection tool are provided with test probe 8, be provided with door 1c on the box 1, door 1c is located spout 6 b's extending direction, when the test probe 8 on the detection tool 2 needs to be changed, open door 1c, take out detection tool 2, it can to change corresponding test probe 8. More specifically, the both sides of detection tool 2 in this embodiment all are provided with turns over hem 2a, turn over and are provided with pulley 2b on hem 2a, and detection tool 2 slides through pulley 2b and sets up in spout 6b, turns over and has seted up recess 2c on hem 2a, is provided with connecting plate 6a on the fly leaf 6, can dismantle on the connecting plate 6a and have the locating pin, and the locating pin inserts recess 2 c.

The bottom of the box body 1 is provided with a test channel for the carrier 3 to enter, the carrier 3 is positioned below the movable plate 6 and is driven by the lifting mechanism 7 to lift in the test channel; the upper end face of the carrier 3 is provided with a plurality of detection modules 3a, the opposite two ends of each detection module 3a are at least provided with an elastic clamping block 3b, each detection module 3a is provided with a lower detection probe 3c and a power probe 3d, the carrier 3 is internally provided with a conductor 3e, the bottom of the carrier 3 is provided with a copper plate 3f, and the lower detection probe 3c and the power probe 3d are conducted with the copper plate through the conductor 3 e.

The circuit board 9 is clamped on the carrier 3 and driven by the lifting mechanism 7 to enter the testing channel, and after the circuit board 9 is in place, the upper detection probe 8, the lower detection probe 3c and the power supply probe 3d are conducted with the copper plate df through the conductor 3e, so that the circuit board 9 is detected.

During detection, in order to ensure the sealing performance in the box body 1, a sealing member is arranged between the movable plate 6 and the carrier 3. The sealing member in this embodiment adopts rubber to set up at the lower terminal surface of box 1, be provided with carriage 3g around the 3 up end of carrier, rubber can contact with carriage 3g, raises carrier 3 through carriage 3g, has reduced the input of sealing member.

The elastic clamping block 3b comprises a clamping piece 3b-1 and a supporting seat 3b-2, the supporting seat 3b-2 is fixed on the carrier 3, the clamping piece 3b-1 is rotatably connected with the supporting seat 3b-2 through a torsion spring, a bending hook 3b-3 is arranged at the top of the clamping piece 3b-1, the bending hook 3b-3 is driven by the elasticity of the torsion spring to be always close to the upper end face of the supporting seat 3b-2, and a preset distance is reserved between the two. The supporting seat 3b-2 provides support for the circuit board 9, the circuit board 9 is limited in a gap between the bending hook 3b-3 and the supporting seat 3b-2, the bending hook 3b-3 is always tightly attached to the upper end face of the circuit board 9 under the elastic force of the torsion spring, and the circuit board 9 can be taken out from the bending hook 3b-3 conveniently.

The lifting mechanism 7 in this embodiment includes a lifting cylinder 7a and a guiding component 7b, the lifting cylinder 7a is disposed at the bottom of the carrier 3, a telescopic shaft 7c of the lifting cylinder 7a faces downward, a base 1a is fixed below the box body 1, the bottom of the telescopic shaft 7c is fixedly connected with a supporting plate 1b of the base 1a, and the guiding component 7b is disposed between the carrier 3 and the supporting plate 1 b.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. A gas detection case, its characterized in that: comprises a box body (1), a detection tool (2) and a carrier (3),

the top of the box body (1) is provided with a gas inlet (4), the box body (1) is provided with a convection fan (5), and the bottom of the box body (1) is provided with a test channel;

a movable plate (6) is arranged in the box body (1), the movable plate (6) is driven to lift by a jig cylinder (6c), a pair of sliding grooves (6b) are formed in the opposite inner side walls of the movable plate (6), two sides of the detection jig (2) are arranged in the sliding grooves (6b) in a sliding mode, an upper detection probe (8) is arranged at the bottom of the detection jig (2), a door (1c) is arranged on the box body (1), and the door (1c) is located in the extending direction of the sliding grooves (6 b);

the carrier (3) is positioned below the movable plate (6) and is driven by the lifting mechanism (7) to lift in the test channel;

carrier (3) up end is provided with a plurality of detection module (3a), every the relative both ends of detection module (3a) all are provided with one elasticity fixture block (3b), every be provided with down detection probe (3c), power probe (3d) on detection module (3a), carrier (3) embeds there is conductor (3e), carrier (3) bottom is provided with copper (3f), detection probe (3c), power probe (3d) switch on through conductor (3e) and copper down.

2. The gas detection cabinet of claim 1, wherein: and a sealing element is arranged between the movable plate (6) and the carrier (3).

3. The gas detection cabinet of claim 2, wherein: the sealing element is made of rubber and is arranged on the lower end face of the box body (1), a supporting frame (3g) is arranged on the periphery of the upper end face of the carrier (3), and the rubber can be in contact with the supporting frame (3 g).

4. The gas detection cabinet of claim 1, wherein: the elastic clamping block (3b) comprises a clamping piece (3b-1) and a supporting seat (3b-2), the supporting seat (3b-2) is fixed on the carrier (3), the clamping piece (3b-1) is rotatably connected with the supporting seat (3b-2) through a torsion spring, a bending hook (3b-3) is arranged at the top of the clamping piece (3b-1), the elastic driving bending hook (3b-3) of the torsion spring is always close to the upper end face of the supporting seat (3b-2), and a preset distance is reserved between the two.

5. The gas detection cabinet of claim 1, wherein: elevating system (7) are including lift cylinder (7a), direction subassembly (7b), lift cylinder (7a) set up in carrier (3) bottom, telescopic shaft (7c) of lift cylinder (7a) are down, box (1) below is fixed with base (1a), the bottom of telescopic shaft (7c) is connected fixedly with backup pad (1b) of base (1a), direction subassembly (7b) sets up between carrier (3) and backup pad (1 b).

6. The gas detection cabinet of claim 1, wherein: the two sides of the detection jig (2) are provided with turnover edges (2a), pulleys (2b) are arranged on the turnover edges (2a), and the detection jig (2) is arranged in the sliding groove (6b) in a sliding mode through the pulleys (2 b).

7. The gas detection cabinet of claim 6, wherein: the flanging edge (2a) is provided with a groove (2c), the movable plate (6) is provided with a connecting plate (6a), and the connecting plate (6a) is detachably provided with a positioning pin which is inserted into the groove (2 c).