Combustible gas detecting, collecting and feeding device

Abstract

The utility model provides a combustible gas detecting, collecting and feeding device, which relates to the technical field of combustible gas detection and comprises a collecting box, a sucking pump is mounted at the bottom of the surface of one side of the collecting box, the output end of the sucking pump is arranged in the collecting box, a gas inlet pipe is arranged at the top of one side of the collecting box, and a gas outlet pipe is arranged at the top of the other side of the collecting box. A filter screen is arranged in the air inlet pipe, a one-way valve is installed on the pipe body, located in the collecting box, of the air inlet pipe, and a cleaning mechanism used for cleaning the surface of the filter screen is arranged on the surface of one side of the collecting box. Through driving of the driving motor, the rubber scraping plate can be controlled to move, in the moving process of the rubber scraping plate, dust and impurities on the surface of the filter screen can be scraped, and the scraped dust and impurities can fall to the lower portion through the through groove, so that the dust and the impurities cannot be accumulated on the surface of the filter screen, the air inlet pipe can be effectively prevented from being blocked, and the service life of the air inlet pipe is prolonged. And the gas collection speed is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of combustible gas detection, in particular to a combustible gas detection, collecting and feeding device. Background Art

[0002] In the process of industrial production, a lot of waste gas will be generated. In order to ensure the safety of production, it is necessary to conduct flammability detection on the generated waste gas. When detecting, the gas needs to be collected first. For example, the patent with application number 201822169122.X proposes a gas collection device for environmental detection, which includes a plastic connector and several gas collection devices. The gas collection device includes a gas collection pipe, which is fixedly installed on the plastic connector. A gas collection chamber is provided inside the gas collection pipe, and a piston is provided inside the gas collection chamber. The piston is slidably connected to the inner wall of the gas collection chamber. A pull rod is provided at one end of the piston, and one end of the pull rod is fixedly connected to the middle of one end face of the piston. The above scheme is provided with a cut-off rubber column, and a through hole is provided on the cut-off rubber column. The gas channel is in a conducting state by pressing the hand-pressing small block. When the hand-pressing small block is released, the gas channel is in a cut-off state. The piston moves by pulling the pull rod, so as to collect the detection gas. It is easy to use, and multiple gas collection devices are provided. The outer ends of the gas collection pipes of the gas collection devices are all labeled with labels, which can store multiple groups of detection gases and are convenient for management.

[0003] However, during the use of the existing gas collection device, dust and debris are easily accumulated at the air inlet, resulting in blockage of the air inlet, which makes the gas collection speed slow. Therefore, we have made improvements to this and proposed a combustible gas detection, collection and feeding device. Utility Model Content

[0004] The main purpose of the utility model is to provide a combustible gas detection, collection and feeding device, which can effectively solve the problem that dust and debris are easily accumulated at the air inlet of the gas collection device during use, resulting in blockage of the air inlet and slowing down the gas collection speed.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A combustible gas detection, collecting and feeding device comprises a collecting box, a vacuum pump is installed at the bottom of one side surface of the collecting box, the output end of the vacuum pump is arranged inside the collecting box, an air intake pipe is arranged at the top of one side of the collecting box, a filter is arranged inside the air intake pipe, a one-way valve is installed on the pipe body of the air intake pipe located inside the collecting box, and a cleaning mechanism for cleaning the filter surface is arranged on the surface of one side of the collecting box.

[0007] Preferably, a through groove is provided on the inner wall of the bottom of the air inlet pipe and on one side of the filter screen, and sliding grooves are provided on both sides of the air inlet pipe.

[0008] Preferably, the cleaning mechanism comprises a mounting plate, which is mounted on a side surface of the collection box and located at four corners of the air inlet pipe, wherein a driving motor is mounted on an upper surface of one of the upper mounting plates.

[0009] Preferably, an adjusting screw is installed at the output end of the driving motor, and one end of the adjusting screw is rotatably arranged on the surface of the bottom mounting plate at a corresponding position.

[0010] Preferably, a limit rod is installed between the two mounting plates away from the adjusting screw rod, and sliding blocks are movably installed on the rod bodies of the limit rod and the adjusting screw rod, and the adjusting screw rod and the sliding block are matched with each other through threads.

[0011] Preferably, each of the sliding blocks is slidably arranged inside the sliding groove at a corresponding position, and a moving plate is installed between the two sliding blocks and inside the air intake pipe.

[0012] Preferably, a groove is provided on the surface of one end of the movable plate, and limit springs are installed on both sides of the inner wall of one end of the groove, and a sliding plate is installed at one end of the limit spring.

[0013] Preferably, one end of the sliding plate is slidably disposed inside the groove, and a rubber scraper is installed at the other end of the sliding plate, and one end of the rubber scraper is disposed on one side of the filter screen.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The rubber scraper can be controlled to move by driving the driving motor. During the movement, the rubber scraper can scrape off the dust and debris on the surface of the filter. The scraped dust and impurities will fall to the bottom through the through groove, so that the dust and debris will not accumulate on the surface of the filter, which can effectively avoid the blockage of the air intake pipe and the gas collection speed is faster. The rubber scraper is movably installed by the sliding plate and the limit spring, so that the rubber scraper has a certain distance of moving space. Under the elastic action of the spring, one side of the rubber scraper can always keep in contact with the surface of the filter, thereby having a better cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0018] Figure 3 It is a top view of the utility model;

[0019] Figure 4 For the utility model Figure 3 Schematic diagram of the three-dimensional structure of the cross section at AA in the middle;

[0020] Figure 5 For the utility model Figure 3 Schematic diagram of the three-dimensional structure of the cross section at BB in the middle;

[0021] Figure 6 For the utility model Figure 4 Enlarged view of point C in the middle;

[0022] Figure 7 For the utility model Figure 5 Enlarged view of point D in the middle.

[0023] In the figure: 1. collecting box; 2. vacuum pump; 3. air inlet pipe; 301. through groove; 302. sliding groove; 4. filter; 5. one-way valve; 6. cleaning mechanism; 601. mounting plate; 602. driving motor; 603. adjusting screw rod; 604. limiting rod; 605. sliding block; 606. moving plate; 607. groove; 608. limiting spring; 609. sliding plate; 610. rubber scraper. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 , Figure 2 , Figure 5 As shown, a combustible gas detection, collecting and feeding device includes a collecting box 1, a vacuum pump 2 is installed at the bottom of one side surface of the collecting box 1, the output end of the vacuum pump 2 is arranged inside the collecting box 1, an air intake pipe 3 is arranged at the top of one side of the collecting box 1, a filter screen 4 is arranged inside the air intake pipe 3, a one-way valve 5 is installed on the pipe body of the air intake pipe 3 located inside the collecting box 1, and a cleaning mechanism 6 for cleaning the surface of the filter screen 4 is arranged on the surface of one side of the collecting box 1.

[0026] like Figure 5 , Figure 6 , Figure 7As shown, a through groove 301 is provided on the bottom inner wall of the air inlet pipe 3 and located on one side of the filter screen 4, and sliding grooves 302 are provided on both sides of the air inlet pipe 3. The cleaning mechanism 6 includes a mounting plate 601, which is mounted on the surface of one side of the collecting box 1 and located at the four corners of the air inlet pipe 3. A driving motor 602 is mounted on the upper surface of one of the upper mounting plates 601, and an adjusting screw rod 603 is mounted on the output end of the driving motor 602. One end of the adjusting screw rod 603 is rotatably arranged on the surface of the bottom mounting plate 601 at the corresponding position, and a limiting rod 604 is installed between the two mounting plates 601 away from the adjusting screw rod 603. The limiting rod 604 and the adjusting screw rod 603 are connected to each other. A sliding block 605 is movably installed on the body, and the adjusting screw rod 603 is matched with the sliding block 605 through a thread. Each sliding block 605 is slidably set inside the sliding groove 302 at the corresponding position. A movable plate 606 is installed between the two sliding blocks 605 and inside the intake pipe 3. A groove 607 is opened on the surface of one end of the movable plate 606. Limiting springs 608 are installed on both sides of the inner wall of one end of the groove 607. A sliding plate 609 is installed on one end of the limiting spring 608. One end of the sliding plate 609 is slidably set inside the groove 607. A rubber scraper 610 is installed on the other end of the sliding plate 609. One end of the rubber scraper 610 is set on one side of the filter 4.

[0027] Through the threaded cooperation between the sliding block 605 and the adjusting screw rod 603, under the drive of the driving motor 602, the rubber scraper 610 can be controlled to move, which can clean the surface of the filter 4 and prevent dust and debris from accumulating on the surface of the filter 4 and affecting the air intake speed. The sliding cooperation between the sliding block 605 and the limiting rod 604 can limit the moving trajectory of the moving plate 606, so that the moving plate 606 is more stable during the movement. The rubber scraper 610 is movably installed through the sliding plate 609 and the limiting spring 608, so that the rubber scraper 610 has a certain distance of moving space. Under the elastic action of the spring, one side of the rubber scraper 610 can always be kept in contact with the surface of the filter 4, thereby having a better cleaning effect.

[0028] The working principle of this combustible gas detection, collection and feeding device:

[0029] When in use, the outside air can be collected into the interior of the collection box 1 through the air intake pipe 3 through the operation of the vacuum pump 2. A one-way valve 5 is installed inside the air intake pipe 3, so that the air can only enter the interior of the collection box 1 through the air intake pipe 3 and cannot be discharged. The adjusting screw 603 is driven to rotate by the driving motor 602. Under the action of the threaded engagement between the adjusting screw 603 and the sliding block 605, the sliding block 605 can drive the moving plate 606 to move, and then the rubber scraper 610 on one side can move. During the movement, the rubber scraper 610 can scrape off the dust and debris on the surface of the filter 4. The scraped dust and impurities will fall to the bottom through the through groove 301, so that the dust and debris will not accumulate on the surface of the filter 4, which can effectively avoid the blockage of the air intake pipe 3 and the gas collection speed is faster.

[0030] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A combustible gas detection, collection and feeding device, comprising a collection box (1), characterized in that: An air pump (2) is installed at the bottom of one side surface of the collection box (1), the output end of the air pump (2) is arranged inside the collection box (1), an air intake pipe (3) is arranged at the top of one side of the collection box (1), a filter screen (4) is arranged inside the air intake pipe (3), a one-way valve (5) is installed on the pipe body of the air intake pipe (3) located inside the collection box (1), and a cleaning mechanism (6) for cleaning the surface of the filter screen (4) is arranged on the surface of one side of the collection box (1).

2. A combustible gas detection, collection and feeding device according to claim 1, characterized in that: A through groove (301) is provided on the inner wall of the bottom of the air intake pipe (3) and located on one side of the filter screen (4), and sliding grooves (302) are provided on both sides of the air intake pipe (3).

3. A combustible gas detection, collection and feeding device according to claim 1, characterized in that: The cleaning mechanism (6) comprises a mounting plate (601), the mounting plate (601) being mounted on a side surface of the collection box (1) and located at the four corners of the air inlet pipe (3), wherein a driving motor (602) is mounted on the upper surface of one of the upper mounting plates (601).

4. A combustible gas detection, collection and feeding device according to claim 3, characterized in that: An adjusting screw rod (603) is installed at the output end of the driving motor (602), and one end of the adjusting screw rod (603) is rotatably arranged on the surface of the bottom mounting plate (601) at a corresponding position.

5. A combustible gas detection, collection and feeding device according to claim 4, characterized in that: A limit rod (604) is installed between the two mounting plates (601) away from the adjusting screw rod (603), and a sliding block (605) is movably installed on the rod body of the limit rod (604) and the adjusting screw rod (603), and the adjusting screw rod (603) and the sliding block (605) are matched through threads.

6. A combustible gas detection, collection and feeding device according to claim 5, characterized in that: Each of the sliding blocks (605) is slidably arranged inside the sliding groove (302) at a corresponding position, and a moving plate (606) is installed between the two sliding blocks (605) and inside the air intake pipe (3).

7. A combustible gas detection, collection and feeding device according to claim 6, characterized in that: A groove (607) is provided on the surface of one end of the movable plate (606), and limit springs (608) are installed on both sides of the inner wall of one end of the groove (607), and a sliding plate (609) is installed at one end of the limit spring (608).

8. A combustible gas detection, collection and feeding device according to claim 7, characterized in that: One end of the sliding plate (609) is slidably arranged inside the groove (607), and the other end of the sliding plate (609) is installed with a rubber scraper (610), and one end of the rubber scraper (610) is arranged on one side of the filter screen (4).

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