Gas drainage device for gas control

Abstract

The utility model discloses a gas drainage device for gas control, which belongs to the technical field of gas control and comprises a bottom plate, a sealing mechanism is arranged at the top of the bottom plate, electric telescopic rods are fixedly connected to two sides of the top of the bottom plate, and a supporting plate is fixedly connected between the tops of telescopic ends of the two electric telescopic rods. The top of the supporting plate is fixedly connected with a filter box; the sealing mechanism comprises a connecting pipe, a pumping pipe, a fixing ring and a conical rubber sealing ring, the conical rubber sealing ring is fixedly arranged on the surface of the pumping pipe in a sleeving mode, and the fixing ring is movably arranged on the surface of the pumping pipe in a sleeving mode. The problems that in the prior art, a pumping pipe and the inner wall of an extraction hole are inconvenient to quickly seal, and a traditional sealing method using clay or polyurethane foaming materials is low in efficiency and prone to being affected by factors such as the operation technology and the environment temperature, and follow-up dismounting is inconvenient are solved.

Description

Technical Field

[0001] This utility model relates to the field of gas control technology, and in particular to a gas extraction device for gas control. Background Technology

[0002] A gas extraction device for gas control is a specialized equipment system used in coal mines or other environments containing gas to extract and treat gas from its source. Its main purpose is to reduce the concentration of gas in the work area and prevent gas accumulation from causing safety accidents such as explosions.

[0003] When existing gas extraction devices for gas control are in use, the gas carries some dust. The accumulation of dust over a long period of time may clog the extraction pipe, resulting in poor extraction efficiency. Furthermore, it is difficult to fix the gas cylinder in place, and frequent shaking can easily lead to instability of the gas inside the cylinder, which may cause dangerous accidents.

[0004] The existing patent (publication number: CN221722859U) discloses a gas extraction device for gas control. This utility model achieves the effect of filtering dust during use by setting up an exhaust pipe and a filter plate. It can filter and clean the extracted gas, avoid dust clogging the exhaust pipe and affecting the normal use of the device, and improve the extraction efficiency.

[0005] To address the aforementioned issues, existing patents offer solutions. However, some existing gas extraction devices are inconvenient for quickly sealing the inner wall of the extraction pipe and extraction hole. Traditional sealing methods using clay or polyurethane foam are inefficient, easily affected by factors such as operating techniques and ambient temperature, and are also inconvenient to dismantle later.

[0006] Therefore, a gas extraction device for gas control is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a gas extraction device for gas control, which can solve the problems of existing gas extraction devices, such as the inconvenience of quickly sealing the inner wall of the extraction pipe and the extraction hole, the low efficiency of traditional sealing methods using clay or polyurethane foam materials, the susceptibility to factors such as operating techniques and ambient temperature, and the inconvenience of subsequent dismantling.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a gas extraction device for gas control, comprising a base plate, a sealing mechanism provided on the top of the base plate, electric telescopic rods fixedly connected to both sides of the base plate, a support plate fixedly connected between the tops of the telescopic ends of the two electric telescopic rods, and a filter box fixedly connected to the top of the support plate.

[0009] The sealing mechanism includes a connecting pipe, a pumping pipe, a fixing ring, and a conical rubber sealing ring. The conical rubber sealing ring is fixedly sleeved on the surface of the pumping pipe, and the fixing ring is movably sleeved on the surface of the pumping pipe. The bottom of the fixing ring is fixedly connected to the top of the conical rubber sealing ring, and the rear side of the connecting pipe is fixedly connected to the front side of the filter box.

[0010] Preferably, a connecting plate is fixedly connected to the rear side of the fixing ring, and the top of the connecting plate is fixedly connected to the bottom of the support plate.

[0011] Preferably, counterweights are fixedly connected to the four corners of the top of the base plate, and lifting rings are fixedly connected to the top of the counterweights.

[0012] Preferably, the top of the base plate has a notch for use with the extraction pipe.

[0013] Preferably, the filter box is provided with a filtration mechanism inside. The filtration mechanism includes a cover, several limiting strips and two filter elements. The inner wall of the cover is in contact with the surface of the filter box. The side of the limiting strip near the inner wall of the filter box is fixedly connected to the inner wall of the filter box. The filter elements are movably engaged between the opposite sides of adjacent limiting strips.

[0014] Preferably, a fixing block is fixedly connected to both sides of the filter box, a limiting block is provided on the top of the fixing block, the bottom of the limiting block contacts the top of the cover, a rotating shaft is provided on the top of the limiting block, the bottom of the rotating shaft passes through the limiting block and is fixedly connected to the top of the fixing block, and the surface of the rotating shaft is rotatably connected to the inside of the limiting block.

[0015] Preferably, a limit button is fixedly connected to the top of the limit block, the bottom of the limit button passes through the limit block and extends into the interior of the cover, and the surface of the limit button is threadedly connected to the interior of the limit block.

[0016] Preferably, a water ring vacuum pump is fixedly connected to the rear side of the filter box, the bottom of the water ring vacuum pump is fixedly connected to the top of the support plate, and a discharge pipe is fixedly connected to the rear side of the water ring vacuum pump, with a valve installed inside the discharge pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application uses a delivery pipe with a conical rubber sealing ring fixedly connected to its surface. The delivery pipe is moved to the top of the gas extraction hole, and then the extension ends of two electric telescopic rods are simultaneously controlled to retract downwards, causing the connecting plate to move downwards and inserting the delivery pipe into the gas hole. As the extension ends of the two electric telescopic rods continue to retract simultaneously, the surface of the conical rubber sealing ring comes into close contact with the inner wall of the gas hole, thus quickly sealing the delivery pipe and the gas hole. When removing the pipe, simply extend the extension ends of the two electric telescopic rods upwards to pull the conical rubber sealing ring out of the gas hole. The base plate is pressed down by four counterweights, making the base plate more stable and ensuring the seal between the delivery pipe and the gas hole by the conical rubber sealing ring.

[0019] 2. This application features a filter box with an openable cover. After the filter element inside the filter box filters dust from the gas, rotating the limit button disengages it from the cover. This allows the limit block to be rotated to detach from the cover, and the cover to be moved upwards to detach from the filter box. This makes it easy to pull out and replace the filter element between the adjacent limit strips. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the gas extraction device for gas control according to this utility model;

[0021] Figure 2 This is a three-dimensional exploded view of the extraction tube and the conical rubber sealing ring in this utility model;

[0022] Figure 3 This is a three-dimensional exploded view of the water ring vacuum pump and the discharge pipe in this utility model;

[0023] Figure 4 This is a three-dimensional exploded view of the filter box and cover in this utility model;

[0024] Figure 5 This is a three-dimensional exploded view of the limiting block and the rotating shaft in this utility model.

[0025] In the diagram, 1. Base plate; 2. Counterweight; 3. Notch; 4. Sealing mechanism; 401. Connecting pipe; 402. Pumping pipe; 403. Fixing ring; 404. Conical rubber sealing ring; 5. Filter box; 6. Electric telescopic rod; 7. Discharge pipe; 8. Water ring vacuum pump; 9. Filtration mechanism; 901. Cover; 902. Limiting strip; 903. Filter element; 10. Support plate; 11. Valve; 12. Limiting button; 13. Rotating shaft; 14. Fixing block; 15. Limiting block; 16. Connecting plate; 17. Lifting ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A gas extraction device for gas control includes a base plate 1, a sealing mechanism 4 is provided on the top of the base plate 1, electric telescopic rods 6 are fixedly connected to both sides of the base plate 1, a support plate 10 is fixedly connected between the top of the telescopic ends of the two electric telescopic rods 6, and a filter box 5 is fixedly connected to the top of the support plate 10.

[0029] The sealing mechanism 4 includes a connecting pipe 401, a pumping pipe 402, a fixing ring 403, and a conical rubber sealing ring 404. The conical rubber sealing ring 404 is fixedly sleeved on the surface of the pumping pipe 402, and the fixing ring 403 is movably sleeved on the surface of the pumping pipe 402. The bottom of the fixing ring 403 is fixedly connected to the top of the conical rubber sealing ring 404, and the rear side of the connecting pipe 401 is fixedly connected to the front side of the filter box 5.

[0030] In this embodiment: by moving the base plate 1 until the extraction pipe 402 is located at the top of the gas hole, and simultaneously controlling the retraction ends of the two electric telescopic rods 6 to retract, the extraction pipe 402 can pass through the notch 3 and move downward into the gas hole. The conical rubber sealing ring 404 can then make tight contact with the inner wall of the gas hole, thereby quickly sealing the extraction pipe 402 and the gas hole. When it is necessary to remove the extraction pipe 402, simply control the retraction ends of the two electric telescopic rods 6 to extend upwards, and the conical rubber sealing ring 404 can be pulled out of the gas hole, thus completing the rapid removal of the extraction pipe 402. This avoids the problems of existing gas extraction devices, which are inconvenient for quickly sealing the extraction pipe and the inner wall of the extraction hole. Traditional sealing methods using clay or polyurethane foam are inefficient, easily affected by operating techniques and ambient temperature, and are inconvenient for subsequent removal.

[0031] Specifically, such as Figure 1 As shown, a connecting plate 16 is fixedly connected to the rear side of the fixing ring 403, and the top of the connecting plate 16 is fixedly connected to the bottom of the support plate 10.

[0032] Specifically, such as Figure 1 As shown, counterweights 2 are fixedly connected to the four corners of the top of the base plate 1, and lifting rings 17 are fixedly connected to the top of the counterweights 2.

[0033] Specifically, such as Figure 1 As shown, the top of the base plate 1 has a notch 3 for use with the extraction pipe 402.

[0034] In this embodiment: the fixing ring 403 is connected to the support plate 10 via the connecting plate 16, which facilitates the movement of the conical rubber sealing ring 404 and the extraction pipe 402 when the support plate 10 moves. The counterweight 2 presses down on the base plate 1, making the base plate 1 more stable and the conical rubber sealing ring 404 more stable in sealing the gas hole. The extraction pipe 402 can be easily extended into the gas hole by passing through the notch 3.

[0035] Specifically, such as Figure 4 As shown, the filter box 5 is equipped with a filtration mechanism 9. The filtration mechanism 9 includes a cover 901, several limiting strips 902 and two filter elements 903. The inner wall of the cover 901 is in contact with the surface of the filter box 5. The side of the limiting strip 902 closest to the inner wall of the filter box 5 is fixedly connected to the inner wall of the filter box 5. The filter element 903 is movably engaged between the opposite sides of the adjacent limiting strips 902.

[0036] Specifically, such as Figure 4 and Figure 5 As shown, both sides of the filter box 5 are fixedly connected to a fixing block 14. The top of the fixing block 14 is provided with a limiting block 15. The bottom of the limiting block 15 contacts the top of the cover 901. The top of the limiting block 15 is provided with a rotating shaft 13. The bottom of the rotating shaft 13 passes through the limiting block 15 and is fixedly connected to the top of the fixing block 14. The surface of the rotating shaft 13 is rotatably connected to the inside of the limiting block 15.

[0037] In this embodiment: When the filter element 903 inside the filter box 5 is used to filter dust in the gas and needs to be replaced, rotate the limit button 12 to disengage the limit button 12 from the cover 901. Then, rotate the limit block 15 to disengage from the cover 901. The limit block 15 is rotatably connected to the fixing block 14 through the rotating shaft 13, so that the limit block 15 can rotate. Then, pull the cover 901 upward to disengage from the filter box 5, so that the filter element 903 can be pulled out from between the adjacent limit strips 902 for replacement.

[0038] Specifically, such as Figure 4 and Figure 5 As shown, the top of the limiting block 15 is fixedly connected to the limiting button 12, the bottom of the limiting button 12 passes through the limiting block 15 and extends into the interior of the cover 901, and the surface of the limiting button 12 is threadedly connected to the interior of the limiting block 15.

[0039] Specifically, such as Figure 1 and Figure 3As shown, a water ring vacuum pump 8 is fixedly connected to the rear side of the filter box 5. The bottom of the water ring vacuum pump 8 is fixedly connected to the top of the support plate 10. A discharge pipe 7 is fixedly connected to the rear side of the water ring vacuum pump 8. A valve 11 is installed inside the discharge pipe 7.

[0040] In this embodiment: the limit button 12 is connected to the inside of the limit block 15 by a thread. When the limit button 12 is rotated, the limit button 12 can be moved. By controlling the operation of the water ring vacuum pump 8, the internal impeller rotates, forming a periodic change in the space between the water ring and the impeller. On the side of the pumping pipe 402 connected to the gas hole, the negative pressure generated by the water ring vacuum pump 8 increases the volume of the space, and the gas can be sucked into the pumping pipe 402.

[0041] Working principle: The lifting ring 17 is installed on top of the counterweight 2, facilitating the lifting and installation of the base plate 1 using cranes or other equipment. This allows for easy placement and movement of the base plate 1 at different work locations. Moving the base plate 1 to the side of the gas extraction hole, so that the extraction pipe 402 is positioned at the top of the gas extraction hole, allows the counterweight 2 to press down on the base plate 1, making its placement more stable. Simultaneously, controlling the retraction of the two electric telescopic rods 6 retracts the extension ends, moving the support plate 10 downwards. This causes the connecting plate 16 and the fixing ring 403 to move the extraction pipe 402 and the conical rubber sealing ring 404 downwards, allowing the extraction pipe 402 to pass through the notch 3 and extend to the gas hole. Inside the cavity, the surface of the conical rubber sealing ring 404 is brought into close contact with the inner wall of the gas extraction hole. At this point, the conical rubber sealing ring 404 can quickly seal the connection between the extraction pipe 402 and the gas hole. Four counterweights 2 press down on the base plate 1, making the base plate 1 more stable and ensuring the stability of the seal between the extraction pipe 402 and the gas hole. By controlling the operation of the water ring vacuum pump 8, its internal impeller rotates, creating a periodic change in the space between the water ring and the impeller. On the side where the extraction pipe 402 connects to the gas hole, the negative pressure generated by the water ring vacuum pump 8 increases the volume of this space, drawing gas into the extraction pipe 402, and then through the connecting... After the gas is filtered by the two filter elements 903 inside the filter box 5 via the pipe 401, opening valve 11 allows the filtered gas to be discharged from the discharge pipe 7 to an external storage device. When the extraction pipe 402 needs to be removed, simultaneously extending the extension ends of the two electric telescopic rods 6 allows the extraction pipe 402 and the conical rubber sealing ring 404 to move upwards, quickly detaching the conical rubber sealing ring 404 from the gas vent. When the filter element 903 needs to be replaced, turning the limit button 12, which is threaded into the limit block 15, allows the limit button 12 to move upwards, thus removing the filter element 903. The limit button 12 moves upward until it disengages from the cover 901, and then the limit block 15 is rotated until it disengages from the cover 901. The cover 901 can then be pulled upward to disengage from the filter box 5, allowing the filter element 903 to be pulled out from between the adjacent limit strips 902 for replacement. This avoids the problems of existing gas treatment devices, which are inconvenient to quickly seal the inner wall of the extraction pipe and extraction hole. Traditional sealing methods using clay or polyurethane foam are inefficient, easily affected by factors such as operating skills and ambient temperature, and are inconvenient for subsequent disassembly. It should be noted that the water ring vacuum pump 8 is a mature technology that has been published and will not be described in detail here.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas extraction device for gas control, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a sealing mechanism (4) at the top. Electric telescopic rods (6) are fixedly connected to both sides of the bottom plate (1). A support plate (10) is fixedly connected between the top of the telescopic ends of the two electric telescopic rods (6). A filter box (5) is fixedly connected to the top of the support plate (10). The sealing mechanism (4) includes a connecting pipe (401), a pumping pipe (402), a fixing ring (403), and a conical rubber sealing ring (404). The conical rubber sealing ring (404) is fixedly sleeved on the surface of the pumping pipe (402), and the fixing ring (403) is movably sleeved on the surface of the pumping pipe (402). The bottom of the fixing ring (403) is fixedly connected to the top of the conical rubber sealing ring (404), and the rear side of the connecting pipe (401) is fixedly connected to the front side of the filter box (5). A connecting plate (16) is fixedly connected to the rear side of the fixed ring (403). The top of the connecting plate (16) is fixedly connected to the bottom of the support plate (10). A counterweight (2) is fixedly connected to each of the four corners of the top of the base plate (1). A lifting ring (17) is fixedly connected to the top of the counterweight (2). A notch (3) is provided on the top of the base plate (1) to cooperate with the pumping pipe (402). The filter box (5) is provided with a filtration mechanism (9) inside. The filtration mechanism (9) includes a cover (901), several limiting strips (902) and two filter elements (903). The inner wall of the cover (901) is in contact with the surface of the filter box (5). The side of the limiting strip (902) near the inner wall of the filter box (5) is fixedly connected to the inner wall of the filter box (5). The filter element (903) is movably engaged between the opposite sides of the adjacent limiting strips (902). The filter box (5) is fixedly connected to both sides by a fixing block (14). The top of the fixing block (14) is provided with a limiting block (15). The bottom of the limiting block (15) contacts the top of the cover (901). The top of the limiting block (15) is provided with a rotating shaft (13). The bottom of the rotating shaft (13) passes through the limiting block (15) and is fixedly connected to the top of the fixing block (14). The surface of the rotating shaft (13) is rotatably connected to the inside of the limiting block (15).

2. The gas extraction device for gas control according to claim 1, characterized in that: The top of the limiting block (15) is fixedly connected to a limiting button (12), the bottom of the limiting button (12) passes through the limiting block (15) and extends into the interior of the cover (901), and the surface of the limiting button (12) is threadedly connected to the interior of the limiting block (15).

3. The gas extraction device for gas control according to claim 1, characterized in that: The filter box (5) is fixedly connected to a water ring vacuum pump (8) at the rear. The bottom of the water ring vacuum pump (8) is fixedly connected to the top of the support plate (10). The water ring vacuum pump (8) is fixedly connected to a discharge pipe (7) at the rear. A valve (11) is installed inside the discharge pipe (7).

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