CN212410210U

CN212410210U - Portable gas detection alarm

Info

Publication number: CN212410210U
Application number: CN202020944569.4U
Authority: CN
Inventors: 马振江; 韩磊
Original assignee: Shandong Zhongda Safety Technology Co ltd
Current assignee: Shandong Zhongda Safety Technology Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-01-26
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a portable gas detection alarm, including diffusion formula gas detector body, the air inlet has on the top terminal surface of diffusion formula gas detector body, air inlet department is connected with the intake pipe, still includes aspiration pump and solenoid valve, the aspiration pump is installed on diffusion formula gas detector body, and the suction nozzle department of aspiration pump is connected with the aspiration pump intake pipe, and the delivery nozzle department of aspiration pump is connected with the aspiration pump outlet duct, aspiration pump intake pipe and aspiration pump outlet duct all get into in the intake pipe, and the aspiration pump intake pipe is located aspiration pump outlet duct top, the solenoid valve sets up in the intake pipe, and the solenoid valve is located between aspiration pump intake pipe and aspiration pump outlet duct; the device can realize the double purposes of a diffusion type gas detector and a pump suction type gas detector, so that the application environment of the device is wider.

Description

Portable gas detection alarm

Technical Field

The utility model relates to a gaseous detection alarm technical field, concretely relates to portable gaseous detection alarm.

Background

The portable gas detection alarm is used as a common gas detector and is divided into a diffusion type gas detector and a pump suction type gas detector according to different sampling methods.

The pump suction type gas detector is characterized in that a small gas sampling pump is used for pumping and sampling gas in a to-be-detected area under the driving of a power supply, then the obtained gas is sent into the gas detector for detection and analysis, and the pump suction type gas detector is generally suitable for places where detection is needed before people should not enter or operation personnel enter, such as tunnels, pipelines, sewers, agricultural closed grain bins, railway tank cars, tank bodies and the like.

The diffusion type gas detector is characterized in that natural air flows, part of air can flow into the gas detector, and the gas detector can analyze the flowing gas to obtain results, and the diffusion type gas detector is mainly applied to open occasions.

In the process of carrying out gas detection, for example places such as mill, colliery, can all adopt the mode that two kinds of gas detection appearance combine to use, detect the gas of each position to guarantee staff's safety, the inspector just need carry portable gas detection appearance and pump-suction type gas detection appearance two kinds simultaneously, exchanges the use according to the place of difference during the use, uses inconveniently, carries also inconvenient simultaneously.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a portable gas detection alarm to make portable gas detection alarm's application environment wider.

The utility model provides a portable gaseous detection alarm, includes the gaseous detector body of diffusion formula, the air inlet has on the top terminal surface of the gaseous detector body of diffusion formula, air inlet department is connected with the intake pipe, still includes aspiration pump and solenoid valve, the aspiration pump is installed on the gaseous detector body of diffusion formula, and the suction nozzle department of aspiration pump is connected with the aspiration pump intake pipe, and the delivery nozzle department of aspiration pump is connected with the aspiration pump outlet duct, in aspiration pump intake pipe and aspiration pump outlet duct all got into the intake pipe, the aspiration pump intake pipe was located aspiration pump outlet duct top, the solenoid valve sets up in the intake pipe, and the solenoid valve is located between aspiration pump intake pipe and the aspiration pump outlet duct. In order to solve the problem, the inventor has designed this technical scheme, set up the aspiration pump among this technical scheme, and set up the solenoid valve in the intake pipe, when needing to use as the gaseous detector of diffusion formula, the aspiration pump is closed, the solenoid valve is in the open mode this moment, it is gaseous directly in getting into the air inlet from the intake pipe, when needs use as the gaseous detector of pump suction formula, the solenoid valve is closed, the aspiration pump is opened, it is gaseous in getting into the aspiration pump air inlet from the intake pipe this moment, then in the air inlet is got into from the exhaust pump outlet duct discharge, so realize the gaseous detector of diffusion formula and the gaseous detector double-purpose of pump suction formula, make the application environment of device wider.

Preferably, the gas detector further comprises a bolt, a rotating shaft, a box body with an open left side and two clamping plates, wherein the box body is fixed at the top end of the diffusion type gas detector body, the air suction pump is positioned in the box body, an air inlet pipe and an air outlet pipe of the air suction pump both movably penetrate through the right wall and the side wall of the air inlet pipe of the box body, a threaded hole is formed in the top wall of the box body, the bolt is in threaded connection with the threaded hole, one end of the bolt, which is positioned in the box body, is connected with a bearing, a rack is connected to the outer circumferential wall of the bearing, the top; two ends of the rotating shaft are respectively and rotatably arranged on the front inner wall and the rear inner wall of the box body, the rotating shaft is connected with a gear, the gear is meshed with the rack, threads are arranged on the circumferential wall of the rotating shaft, and the rotating directions of the threads on two sides of the gear are opposite; the inner bottom wall of the box body is provided with a sliding groove, the two clamping plates are respectively positioned on the front side and the rear side of the air extracting pump, the two clamping plates are connected with sliding blocks, the sliding blocks are matched with the sliding groove, the sliding blocks can slide back and forth in the sliding groove, the clamping plate positioned on the front side of the air extracting pump is provided with a first threaded hole, the clamping plate positioned on the rear side of the air extracting pump is provided with a second threaded hole, the part, positioned on the front side of the gear, of the rotating shaft penetrates through the first threaded hole and is in threaded connection with the first threaded hole, and the part, positioned on the rear side of the gear, of the rotating; the distance from the clamping plate positioned on the front side of the air extracting pump to the front side of the air extracting pump is the same as the distance from the clamping plate positioned on the rear side of the air extracting pump to the rear side of the air extracting pump. When in specific use, the bolt is rotated,

preferably, the number of the sliding grooves is two, the two sliding grooves are respectively located on the left side and the right side of the air extracting pump, the clamping plate is connected with two sliding blocks, and the two sliding blocks are respectively in sliding connection with the two sliding grooves.

Preferably, the sliding groove is parallel to a right side wall of the box body.

Preferably, the rotating shaft is horizontally arranged.

Preferably, the longitudinal section of the sliding chute is trapezoidal, and the short side of the trapezoid is positioned above the long side of the trapezoid.

Preferably, the air inlet pipe is vertically arranged.

Preferably, a box cover capable of closing the left side of the box body is hinged on the box body.

The beneficial effects of the utility model are embodied in: set up the aspiration pump among this technical scheme, and set up the solenoid valve in the intake pipe, when needing to use as the gaseous detector of diffusion formula, the aspiration pump is closed, the solenoid valve is in the open mode this moment, it is gaseous directly in getting into the air inlet from the intake pipe, when needs use as the gaseous detector of pump suction formula, the solenoid valve is closed, the aspiration pump is opened, it is gaseous from the intake pipe entering aspiration pump air inlet this moment, then in the air inlet is got into from the exhaust pump outlet duct discharge, so realize the gaseous detector double-purpose of diffusion formula and pump suction formula, make the application environment of device wider.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

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

fig. 2 is an enlarged schematic view of the position a in fig. 1.

In the attached drawing, 1-diffusion type gas detector body, 2-gas inlet pipe, 3-air pump, 4-air pump gas inlet pipe, 5-air pump gas outlet pipe, 6-box, 7-bolt, 8-bearing, 9-rack, 10-sliding column, 11-rotating shaft, 12-gear, 13-sliding chute and 14-clamping plate.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Examples

As shown in fig. 1 and 2, including gaseous detector body 1 of diffusion formula in this embodiment, the air inlet has on the top terminal surface of gaseous detector body 1 of diffusion formula, air inlet department is connected with intake pipe 2, still includes aspiration pump 3 and solenoid valve, aspiration pump 3 installs on gaseous detector body 1 of diffusion formula, and the suction nozzle department of aspiration pump 3 is connected with aspiration pump intake pipe 4, and the delivery nozzle department of aspiration pump 3 is connected with aspiration pump outlet duct 5, aspiration pump intake pipe 4 and aspiration pump outlet duct 5 all get into intake pipe 2 in, and aspiration pump intake pipe 4 is located aspiration pump outlet duct 5 top, the solenoid valve sets up in intake pipe 2, and the solenoid valve is located between aspiration pump intake pipe 4 and aspiration pump outlet duct 5. In this embodiment, the air pump 3 is a micro air pump, and when the air pump 3 is used, the air pump can be powered by a battery on the diffusion type gas detector body 1, or can be separately connected with a battery for power supply, and the technology of connecting the battery with the air pump 3 adopts the prior art, and redundant explanation is not provided here.

When needs use as gaseous detector of diffusion formula, the aspiration pump is closed, the solenoid valve is in the open mode this moment, it is gaseous from intake pipe 2 entering air inlet, when needs use as the gaseous detector of pump suction formula, the solenoid valve is closed, aspiration pump 3 opens, it is gaseous from intake pipe 2 entering aspiration pump intake pipe 4 in this moment, then in 5 discharges entering air inlets from aspiration pump outlet duct, thus, through setting up aspiration pump 3 and solenoid valve, make the device can realize gaseous detector of diffusion formula and the gaseous detector double-purpose of pump suction formula, make the application environment of device wider.

In order to facilitate installation, overhaul and replacement of the air extracting pump 3, the air extracting pump further comprises a bolt 7, a rotating shaft 11, a box body 6 with an open left side and two clamping plates 14, the box body 6 is fixed at the top end of the diffusion type gas detector body 1, the air extracting pump 3 is located in the box body 6, an air extracting pump air inlet pipe 4 and an air extracting pump air outlet pipe 5 both movably penetrate through the right wall of the box body 6 and the side wall of the air inlet pipe 2, a threaded hole is formed in the top wall of the box body 6, the bolt 7 is in threaded connection with the threaded hole, one end, located in the box body 6, of the bolt 7 is connected with a bearing 8, a rack 9 is connected to the outer circumferential wall of the bearing 8, the top end of the; two ends of the rotating shaft 11 are respectively and rotatably arranged on the front inner wall and the rear inner wall of the box body 6, the rotating shaft 11 is connected with a gear 12, the gear 12 is meshed with the rack 9, threads are arranged on the circumferential wall of the rotating shaft 11, and the rotating directions of the threads on two sides of the gear 12 are opposite; the inner bottom wall of the box body 6 is provided with a sliding groove 13, the two clamping plates 14 are respectively positioned at the front side and the rear side of the air extracting pump 3, the two clamping plates 14 are connected with sliding blocks, the sliding blocks are matched with the sliding groove 13 and can slide back and forth in the sliding groove 13, the clamping plate 14 positioned at the front side of the air extracting pump 3 is provided with a first threaded hole, the clamping plate 14 positioned at the rear side of the air extracting pump 3 is provided with a second threaded hole, the part of the rotating shaft 11 positioned at the front side of the gear 12 penetrates through the first threaded hole and is in threaded connection with the first threaded hole, and the part of the rotating shaft 11 positioned at the rear side of the gear 12 penetrates through the second threaded hole; the distance from the clamp plate 14 located on the front side of the suction pump 3 to the front side of the suction pump 3 is the same as the distance from the clamp plate 14 located on the rear side of the suction pump 3 to the rear side of the suction pump 3. In the present embodiment, front, rear, left, and right sides are based on fig. 1, and one side of the cross section of the case 6 is the front side.

When the screw is used, the bolt 7 is rotated, the bolt 7 moves up and down to drive the bearing 8 to move up and down, the bearing 8 moves up and down to drive the rack 9 to move up and down, the sliding column 10 limits the rack 9 to be always meshed with the gear 12, the bearing 8 is prevented from rotating to enable the rack 9 to be disengaged from the gear 12, the rack 9 moves up and down to drive the gear 12 to rotate, the gear 12 rotates to drive the rotating shaft 11 to rotate, and the rotating shaft 11, the clamping plate 14, the sliding groove 13 and the sliding block form a bidirectional screw rod because the threads on the rotating shaft 11 on two sides of the gear 12 are opposite in rotating; when the pivot 11 is rotatory, two splint 14 motion opposite directions with 11 threaded connection of pivot, 11 rotations of pivot drive two splint 14 relative motion or opposite movement, carry out the centre gripping to the front and back both sides of aspiration pump 3 during two splint 14 relative motion, realize the fixed of aspiration pump 3, during two splint 14 opposite movement, untie the centre gripping to aspiration pump 3, in aspiration pump 3 can take out box 6 this moment, so can be convenient for install, dismantle and maintain aspiration pump 3.

In order to stabilize the movement of the clamping plate 14, the number of the sliding grooves 13 is two in this embodiment, the two sliding grooves 13 are respectively located at the left side and the right side of the air extracting pump 3, and the clamping plate 14 is connected with two sliding blocks which are respectively connected with the two sliding grooves 13 in a sliding manner. The chute 13 is parallel to the right side wall of the box 6 in this embodiment. In this embodiment, the rotating shaft 11 is horizontally disposed. In this embodiment, the longitudinal section of the sliding groove 13 is trapezoidal, and the short side of the trapezoid is located above the long side of the trapezoid. The air inlet pipe 2 is vertically arranged in this embodiment. In this embodiment, the box body 6 is hinged with a box cover capable of closing the left side of the box body 6.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A portable gas detection alarm instrument comprises a diffusion type gas detector body (1), the top end face of the diffusion type gas detector body (1) is provided with a gas inlet, the gas inlet is connected with a gas inlet pipe (2), it is characterized by also comprising an air pump (3) and an electromagnetic valve, wherein the air pump (3) is arranged on the diffusion gas detector body (1), an air inlet nozzle of the air pump (3) is connected with an air inlet pipe (4) of the air pump, an air outlet nozzle of the air pump (3) is connected with an air outlet pipe (5) of the air pump, the air intake pipe (4) of the air pump and the air outlet pipe (5) of the air pump both enter the air intake pipe (2), the air intake pipe (4) of the air pump is positioned above the air outlet pipe (5) of the air pump, the electromagnetic valve is arranged in the air inlet pipe (2) and is positioned between the air inlet pipe (4) of the air extracting pump and the air outlet pipe (5) of the air extracting pump.

2. The portable gas detection alarm instrument according to claim 1, further comprising a bolt (7), a rotating shaft (11), a box body (6) with an open left side and two clamping plates (14), the box body (6) is fixed at the top end of the diffusion type gas detector body (1), the air pump (3) is positioned in the box body (6), the air inlet pipe (4) of the air pump and the air outlet pipe (5) of the air pump both movably penetrate through the right wall of the box body (6) and the side wall of the air inlet pipe (2), the top wall of the box body (6) is provided with a threaded hole, the bolt (7) is in threaded connection with the threaded hole, one end of the bolt (7) positioned in the box body (6) is connected with a bearing (8), the outer circumferential wall of the bearing (8) is connected with a rack (9), the top end of the rack (9) is connected with a sliding column (10), and the sliding column (10) movably penetrates through the top wall of the box body (6); two ends of the rotating shaft (11) are respectively and rotatably arranged on the front inner wall and the rear inner wall of the box body (6), the rotating shaft (11) is connected with a gear (12), the gear (12) is meshed with the rack (9), threads are arranged on the circumferential wall of the rotating shaft (11), and the rotating directions of the threads on two sides of the gear (12) are opposite; the inner bottom wall of the box body (6) is provided with sliding grooves (13), the two clamping plates (14) are respectively positioned at the front side and the rear side of the air extracting pump (3), the two clamping plates (14) are connected with sliding blocks, the sliding blocks are matched with the sliding grooves (13), the sliding blocks can slide back and forth in the sliding grooves (13), the clamping plate (14) positioned at the front side of the air extracting pump (3) is provided with a first threaded hole, the clamping plate (14) positioned at the rear side of the air extracting pump (3) is provided with a second threaded hole, the part of the rotating shaft (11) positioned at the front side of the gear (12) penetrates through the first threaded hole and is in threaded connection with the first threaded hole, and the part of the rotating shaft (11) positioned at the rear side of the gear (12) penetrates through the second threaded hole and; the distance from the clamping plate (14) positioned on the front side of the air pump (3) to the front side of the air pump (3) is the same as the distance from the clamping plate (14) positioned on the rear side of the air pump (3) to the rear side of the air pump (3).

3. The portable gas detection alarm instrument according to claim 2, wherein the number of the sliding grooves (13) is two, the two sliding grooves (13) are respectively located on the left side and the right side of the air pump (3), the clamping plate (14) is connected with two sliding blocks, and the two sliding blocks are respectively connected with the two sliding grooves (13) in a sliding manner.

4. A portable gas detection alarm according to claim 2 wherein the chute (13) is parallel to the right side wall of the housing (6).

5. A portable gas detection alarm according to claim 2, characterised in that the shaft (11) is arranged horizontally.

6. A portable gas detection alarm according to claim 2, wherein the longitudinal cross-section of the chute (13) is trapezoidal, the shorter side of the trapezoid being located above the longer side thereof.

7. A portable gas detection alarm according to claim 1, characterised in that the gas inlet tube (2) is arranged vertically.

8. The portable gas detection alarm instrument according to claim 2, wherein a cover capable of closing the left side of the box body (6) is hinged on the box body (6).