Remote manual control gas extraction device

Abstract

The utility model provides a remote manual control gas extraction device, the remote manual control gas extraction device comprises an extraction pipe group, a plugging sheet and a pull rope, screen pipes and branch pipelines of the extraction pipe group are arranged on a main pipeline and are arranged at intervals, the branch pipelines are provided with openable and closable openings, the plugging sheet is arranged between the main pipeline and the screen pipes, and the pull rope is arranged between the main pipeline and the screen pipes. The pull rope is arranged in the extraction pipe set, one end of the pull rope is connected with the plugging piece, the other end of the pull rope is located on the branch pipeline, and the pull rope is used for pulling the plugging piece and enabling the plugging piece to be broken. According to the remote manually-controlled gas extraction device, the plugging piece is arranged between the main pipeline and the screen pipe, the pull rope connected with the plugging piece extends to the branch pipeline through the main pipeline, the plugging piece can be broken by pulling the end of the pull rope of the branch pipeline, and therefore the main pipeline is communicated with the screen pipe, gas extraction can be conducted, and gas extraction efficiency is improved. Therefore, the installation process requirement is low, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the field of mining, in particular to a remote manually controlled gas extraction device. Background Art

[0002] When mining ore underground, especially coal, it's necessary to extract gas from the working face. Conventional technology involves pre-buried extraction pipelines in the goaf of the working face. These pipelines are opened and closed using pneumatic valves or remote-controlled capsules. However, the installation of pneumatic valves and remote-controlled capsules requires complex processes and is costly. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the embodiments of the present invention provide a remote manual gas extraction device that has low installation process requirements and low cost.

[0004] The remote manual gas extraction device of the present invention includes:

[0005] An extraction pipe group, the extraction pipe group includes a main pipe, a screen pipe and a branch pipe, the screen pipe and the branch pipe are both provided on the main pipe and arranged at intervals along the flow direction of the medium in the main pipe, and the branch pipe is provided with an openable and closable opening;

[0006] a blocking piece, the blocking piece being provided between the main line and the sieve tube to separate the lumen of the main line from the lumen of the sieve tube;

[0007] A pull rope is provided in the extraction tube group, one end of the pull rope is connected to the blocking piece, and the other end of the pull rope is located in the branch pipeline, and the pull rope is used to pull the blocking piece and rupture the blocking piece.

[0008] The remote manually controlled gas extraction device of the embodiment of the utility model is provided with a sealing piece between the main pipeline and the screen pipe. The pull rope connecting the sealing piece extends through the main pipeline to the branch pipeline. By pulling the end of the pull rope of the branch pipeline, the sealing piece can be broken, thereby connecting the main pipeline and the screen pipe, and gas extraction can be carried out, so that it has lower installation process requirements and lower cost.

[0009] In some embodiments, the blocking piece is provided with a tear line, so that the blocking piece is broken along the tear line.

[0010] In some embodiments, the tear line separates the blocking piece into a central portion and a peripheral portion, the peripheral portion surrounds the outer circumference of the central portion, and the central portion is connected to one end of the drawstring.

[0011] In some embodiments, the remote manually controlled gas extraction device further comprises a connecting assembly, wherein the connecting assembly is adhesively connected to the central portion and the connecting assembly is connected to one end of the pull rope.

[0012] In some embodiments, the connecting assembly includes a connecting piece and a connecting ring connected to each other, the connecting piece is adhesively connected to the central portion, and the connecting ring is connected to one end of the pull rope.

[0013] In some embodiments, a projection of the connecting piece on the blocking piece coincides with the central portion or is located within the central portion.

[0014] In some embodiments, the central portion and the connecting piece are both circular, and the diameter of the central portion is greater than or equal to the diameter of the connecting piece.

[0015] In some embodiments, the blocking piece, the connecting piece and the connecting ring all include multiple layers of cloth pieces bonded together in sequence, the multiple layers of cloth pieces of the connecting piece are arranged in a one-to-one correspondence with the multiple layers of cloth pieces of the connecting ring, and the cloth pieces of the connecting piece are integrally connected to the corresponding cloth pieces of the connecting ring.

[0016] In some embodiments, the extraction tube group also includes a branch cover, which is detachably connected to the branch pipeline to open and close the opening. The branch cover has a rope ring. When the branch cover closes the opening, the rope ring is located in the branch pipeline, and the rope ring is connected to the other end of the pull rope.

[0017] In some embodiments, the extraction pipe group also includes a main line cover, a straight tee, a main body and an oblique tee. Among the two oppositely arranged pipe openings of the straight tee, one pipe opening is arranged at one end of one of the main bodies, and the other pipe opening is provided with the main line cover. The remaining pipe openings of the straight tee except the two oppositely arranged pipe openings are provided with the sealing piece and the screen tube, and the sealing piece is located between the remaining pipe openings and the screen tube. Among the two oppositely arranged pipe openings of the oblique tee, one pipe opening is arranged at the other end of one of the main bodies, and the other pipe opening is used to connect the exhaust equipment or connect to the other main body, so that the main line cover, the straight tee, the main body and the two oppositely arranged pipe openings of the oblique tee form the main line, and the inclined pipe opening of the oblique tee except the two oppositely arranged pipe openings forms the branch line, and the inclined pipe opening is detachably connected to the branch line cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the remote manual gas extraction device of the embodiment of the utility model Figure 1 ;

[0019] Figure 2This is a schematic diagram of the structure of the remote manual gas extraction device of the embodiment of the utility model Figure 2 ;

[0020] Figure 3 This is a cross-sectional view of a remote manually controlled gas extraction device according to an embodiment of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the blocking piece and the connecting assembly in an embodiment of the utility model.

[0022] Reference numerals:

[0023] 1. Extraction pipe group; 11. Main line; 12. Screen tube; 13. Branch line; 14. Branch line cover; 15. Main line cover; 16. Straight tee; 17. Main body; 18. Oblique tee; 2. Sealing piece; 3. Pull rope; 4. Connecting assembly; 41. Connecting piece; 42. Connecting ring; 5. Sealing wall; 6. Wood pile. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0025] Reference below Figures 1-4 A remote manually controlled gas extraction device according to an embodiment of the present invention is described.

[0026] like Figures 1-4 As shown, the remote manually controlled gas extraction device of the embodiment of the utility model includes an extraction pipe group 1, a sealing piece 2 and a pull rope 3.

[0027] The extraction pipe assembly 1 includes a main pipe 11, a screen pipe 12, and a branch pipe 13. The screen pipe 12 and the branch pipe 13 are both located on the main pipe 11 and arranged at intervals along the flow direction of the medium in the main pipe 11. The branch pipe 13 has an openable and closable opening. A plugging plate 2 is located between the main pipe 11 and the screen pipe 12 to separate the lumen of the main pipe 11 from the lumen of the screen pipe 12. A pull rope 3 is located within the extraction pipe assembly 1. One end of the pull rope 3 is connected to the plugging plate 2, and the other end of the pull rope 3 is located in the branch pipe 13. The pull rope 3 is used to pull the plugging plate 2 and rupture it.

[0028] Specifically, such as Figure 1-Figure 3As shown, the main pipeline 11 extends in the left-right direction, the screen pipe 12 and the branch pipeline 13 are both arranged on the main pipeline 11 and arranged at intervals in the left-right direction. During the use of the gas extraction device, a sealing wall 5 is provided between the goaf and the tunnel. The left side of the sealing wall 5 is the goaf, and the right side of the sealing wall 5 is the tunnel. The main pipeline 11 passes through the sealing wall 5 in the left-right direction, the screen pipe 12 is located on the left side of the sealing wall 5, and the branch pipeline 13 is located on the right side of the sealing wall 5. In other words, the screen pipe 12 is located in the goaf, and the branch pipeline 13 is located in the tunnel.

[0029] Preferably, the screen tube 12 is provided with multiple rows of through holes, which are arranged at intervals along the circumference of the screen tube 12, each row of through holes includes multiple through holes, and the multiple through holes are arranged at intervals along the axial direction of the screen tube 12, and the through holes penetrate the wall of the screen tube 12 along the radial direction of the screen tube 12 so that the inner cavity of the screen tube 12 is connected with the goaf.

[0030] The plugging piece 2 is provided between the main pipe 11 and the screen tube 12 to separate the lumen of the main pipe 11 from the lumen of the screen tube 12 , thereby isolating the lumen of the main pipe 11 from the goaf.

[0031] A pull rope 3 is provided in the extraction pipe group 1, one end of the pull rope 3 is connected to the sealing piece 2, and then extends to the branch pipe 13 in the main pipe 11. The other end of the pull rope 3 is located in the branch pipe 13. The branch pipe 13 is provided with an openable and closable opening. When the opening is opened, the operator can obtain the other end of the pull rope 3, and pull the sealing piece 2 by pulling the other end of the pull rope 3 to break the sealing piece 2, thereby connecting the lumen of the main pipe 11 with the lumen of the screen pipe 12, and then connecting the lumen of the main pipe 11 with the goaf. At this time, the gas in the goaf can be extracted through the extraction pipe group 1, thereby realizing the extraction of gas in the goaf.

[0032] The remote manually controlled gas extraction device of the embodiment of the utility model is provided with a sealing piece between the main pipeline and the screen pipe. The pull rope connecting the sealing piece extends through the main pipeline to the branch pipeline. By pulling the end of the pull rope of the branch pipeline, the sealing piece can be broken, thereby connecting the main pipeline and the screen pipe, and gas extraction can be carried out, so that it has lower installation process requirements and lower cost.

[0033] Furthermore, in order to prevent the pull rope from being accidentally disconnected when being pulled, the branch pipe 13 extends in the direction of the medium in the main pipe 11 away from the screen pipe 12 and is arranged at an angle. Figure 1-Figure 3 As shown, the branch pipe 13 extends from left to right and is arranged to be inclined upward.

[0034] It can be understood that the branch pipe is not limited to an inclined setting. In other embodiments, the branch pipe is vertically set, and an arc surface is connected between the inner wall of the branch pipe and the inner wall of the main pipe, and the pull rope abuts against the arc surface, or a flexible or elastic cushion layer is provided at the connection between the inner wall of the branch pipe and the inner wall of the main pipe, and the pull rope abuts against the cushion layer.

[0035] Further, the mined-out area is provided with a wood pile 6, which is arranged on one side of the screen pipe 12 or around the outer periphery of the screen pipe 12 to protect the screen pipe 12.

[0036] In some embodiments, the extraction pipe group 1 further comprises a branch cover 14, which is detachably connected with the branch pipe 13 to open or close the opening. The branch cover 14 has a grommet 141, which is located in the branch pipe 13 when the branch cover 14 closes the opening, and the other end of the pull rope 3 is connected to the grommet 141.

[0037] As shown in Figs. 1 and 2, the branch cover 14 is detachably connected with the branch pipe 13 to open or close the opening. The branch cover 14 has a grommet 141 on the end surface for closing the opening, which is located in the branch pipe 13 when the branch cover 14 closes the opening, and the other end of the pull rope 3 is wound or tied on the grommet 141. Figure 2 Figure 3 As shown in Figs. 1 and 2, the branch cover 14 is detachably connected with the branch pipe 13 to open or close the opening. The branch cover 14 has a grommet 141 on the end surface for closing the opening, which is located in the branch pipe 13 when the branch cover 14 closes the opening, and the other end of the pull rope 3 is wound or tied on the grommet 141.

[0038] The grommet 141 is preferably welded to the body of the branch cover 14. The grommet 141 is preferably a nut.

[0039] The branch cover 14 can close the opening to prevent the gas, especially the gas, in the main pipe 11 from leaking out of the opening. The other end of the pull rope 3 is connected to the branch cover 14, which can pull the pull rope 3 to break the sealing piece 2 when the branch cover 14 is detached to open the opening, or the branch cover 14 is further moved to pull the pull rope 3 to break the sealing piece 2 after the opening is opened, thereby facilitating the operator to obtain and pull the pull rope 3.

[0040] It can be understood that the other end of the pull rope is not limited to being arranged on the grommet, and in other embodiments, the other end of the pull rope is bonded to the inner wall of the branch pipe, and the operator can take down the other end of the pull rope.

[0041] In some embodiments, the extraction pipe group 1 further comprises a main cover 15, a straight tee 16, a main pipe body 17, and an inclined tee 18. In the two pipe openings of the straight tee 16 arranged oppositely, one pipe opening is arranged at one end of one main pipe body 17, and the other pipe opening is provided with the main cover 15. The remaining pipe opening of the straight tee 16, except the two oppositely arranged pipe openings, is provided with the sealing piece 2 and the screen pipe 12, and the sealing piece 2 is located between the remaining pipe opening and the screen pipe 12. In the two pipe openings of the inclined tee 18 arranged oppositely, one pipe opening is arranged at the other end of one main pipe body 17, and the other pipe opening is used to connect the gas extraction equipment or connect another main pipe body 17, so that the main cover 15, the straight tee 16, the main pipe body 17, and the two oppositely arranged pipe openings of the inclined tee 18 form the main pipe 11. The inclined pipe opening of the inclined tee 18, except the two oppositely arranged pipe openings, forms the branch pipe 13, and the inclined pipe opening is detachably connected with the branch cover 14.​

[0042] As shown in Figure 1-Figure 3 , the extraction pipe group 1 further comprises a main path cover 15, a right tee 16, a main pipe body 17 and an inclined tee 18.

[0043] The right tee 16 comprises three pipe openings integrally connected, two of which are oppositely arranged along the left-right direction, and the remaining one is a remaining pipe opening, which is arranged along the vertical direction.

[0044] The inclined tee 18 comprises three pipe openings integrally connected, two of which are oppositely arranged along the left-right direction, and the remaining one is an inclined pipe opening, which extends along the direction from left to right and is arranged upwardly and obliquely.

[0045] The left end pipe opening of the right tee 16 is detachably connected with the main path cover 15 to open and close the left end pipe opening of the right tee 16, the right end port of the right tee 16 is detachably connected with the left end of the main pipe body 17, the main pipe body 17 extends along the left-right direction, the right end of the main pipe body 17 is detachably connected with the left end pipe opening of the inclined tee 18, and the right end pipe opening of the inclined tee 18 is used for detachably connecting with an air extraction device or connecting with the left end of another main pipe body 17. The remaining pipe opening of the right tee 16 is detachably connected with the screen pipe 12, which preferably extends along the vertical direction, and the blocking sheet 2 is arranged between the remaining pipe opening and the screen pipe 12. The inclined pipe opening of the inclined tee 18 is detachably connected with the branch path cover 14. The pull rope 3 is sequentially arranged in the remaining pipe opening, the right end port of the right tee 16, the main pipe body 17, the left end pipe opening of the inclined tee 18 and the inclined pipe opening along the direction from left to right.

[0046] Therefore, the main path cover 15, the right tee 16, the main pipe body 17, the left end pipe opening of the inclined tee 18 and the right end pipe opening of the inclined tee 18 form the main pipe path 11, and the inclined pipe opening of the inclined tee 18 forms the branch pipe path 13.

[0047] Preferably, the top end of the screen pipe 12 is detachably connected with a screen pipe cover, which closes the top end of the screen pipe 12 to make the gas in the goaf pass through the plurality of through holes into the screen pipe 12 to sufficiently extract the gas, especially the gas, in the goaf.

[0048] Preferably, the three pipe openings of the right tee 16, the three pipe openings of the inclined tee 18, the top end and the bottom end of the screen pipe 12, the left end and the right end of the main pipe body 17, the main path cover 15, the branch path cover 14 and the screen pipe cover all have flange portions to facilitate detachable connection.

[0049] The outer peripheral end of the blocking sheet 2 is arranged between the flange portion of the bottom end of the screen pipe 12 and the flange portion of the remaining pipe opening of the right tee 16, and the outer peripheral end of the blocking sheet 2 is provided with a plurality of through holes for passing bolts.

[0050] It can be understood that the structure of the extraction pipe group is not limited to the above Figure 2In other embodiments of the structure shown, the left end of the straight tee can be connected to other main pipes or another straight tee, or the main pipe is connected as a whole and detachably connected to the branch pipe, or the main pipe and the branch pipe are connected as a whole.

[0051] In some embodiments, the blocking piece 2 is provided with a tear line so that the blocking piece 2 ruptures along the tear line. Preferably, one end of the drawstring is preferably spaced apart from the tear line, in other words, one end of the drawstring is not provided on the tear line.

[0052] The tear line preferably includes a plurality of holes arranged at intervals along the extending direction of the tear line.

[0053] Preferably, the tear line separates the blocking piece 2 into a central portion and a peripheral portion, the peripheral portion surrounds the periphery of the central portion, and the central portion is connected to one end of the pull rope 3. The central portion is separated from the peripheral portion and falls off under the pulling of the pull rope 3.

[0054] More preferably, the tear line is circular to separate a circular central portion and an annular peripheral portion, and the peripheral portion is provided with a plurality of perforations.

[0055] It can be understood that the tear line is not limited to being circular. In other embodiments, the tear line can be linear, rectangular, radial, etc.

[0056] Preferably, after the central part is detached, the central part and the pull rope 3 are pulled out from the main line through the opening, and the pull rope 3 is separated from the rope ring 141, and then the branch line cover 14 is reinstalled to close the opening.

[0057] In some embodiments, the remote manually controlled gas extraction device of the present invention further includes a connecting component 4 , which is bonded to the central portion and connected to one end of the pull rope 3 .

[0058] like Figure 4 As shown, the connecting component 4 is bonded to the bottom surface of the central part, and the connecting component 4 is connected to one end of the pull rope 3 to indirectly connect one end of the pull rope 3 to the blocking piece 2, so as to avoid one end of the pull rope 3 passing through the blocking piece 2 and causing the blocking piece 2 to rupture, and to avoid one end of the pull rope 3 being bonded to the blocking piece 2, so that when the pull rope 3 is pulled, the pull rope 3 is separated from the blocking piece 2 and cannot cause the blocking piece 2 to rupture.

[0059] It can be understood that one end of the drawstring is not limited to being connected to the central portion via a connecting assembly. In other embodiments, one end of the drawstring is bonded to the central portion.

[0060] In some embodiments, the connecting assembly 4 includes a connecting piece 41 and a connecting ring 42 , wherein the connecting piece 41 is bonded to the central portion, and the connecting ring 42 is connected to one end of the pull rope 3 .

[0061] like Figure 4 As shown, the connecting assembly 4 includes a connecting piece 41 and a connecting ring 42 . The connecting piece 41 is bonded to the bottom surface of the central portion, and one end of the pull rope 3 is wrapped around or tied to the connecting ring 42 .

[0062] Preferably, the connecting piece 41 and the connecting ring 42 are integrally connected to ensure the integrity of the connecting piece 41 and thus ensure the reliability of the bonding with the central portion. It is understood that in other embodiments, the connecting ring can also be threaded onto the connecting piece.

[0063] It is understood that the structure of the connection component is not limited to Figure 4 In the structure shown, in other embodiments, the connecting component only includes a connecting plate or only includes a connecting ring. For example, when it only includes a connecting plate, the connecting plate is a multi-layer bonded plate, and one end of the pull rope is bonded to the connecting plate, specifically, bonded between two layers.

[0064] In some embodiments, the projection of the connecting piece 41 on the blocking piece 2 coincides with the central portion or is located within the central portion.

[0065] Preferably, the connecting piece 41 is circular, and the diameter of the central portion is greater than or equal to the diameter of the connecting piece 41 to ensure that the tear line is exposed and to prevent the tear line from being bonded and thus preventing the blocking piece 2 from being ruptured. It is understood that in other embodiments, the diameter of the central portion may be smaller than the diameter of the connecting piece. In this case, the bottom surface of the central portion can be completely bonded to the connecting piece, ensuring that the central portion can be separated from the peripheral portion.

[0066] In some embodiments, the blocking piece 2, the connecting piece 41 and the connecting ring 42 all include multiple layers of cloth pieces bonded together in sequence, the multiple layers of cloth pieces of the connecting piece 41 are arranged one by one in correspondence with the multiple layers of cloth pieces of the connecting ring 42, and the cloth pieces of the connecting piece 41 are integrally connected with the corresponding cloth pieces of the connecting ring 42.

[0067] Specifically, the blocking piece 2 is formed by folding a strip of air duct cloth back and forth multiple times along its length to form multiple layers. Adjacent layers of air duct cloth are bonded together with a chloroprene adhesive. The folded and bonded air duct cloth is then cut and perforated to form a circular blocking piece 2. Preferably, the air duct cloth is folded at least three times; in other words, the blocking piece 2 comprises at least five layers.

[0068] Connecting assembly 4 also consists of a strip of fabric folded back and forth multiple times along its length to form multiple layers. Adjacent layers of fabric are bonded together with a chloroprene adhesive. The folded and bonded fabric is then cut to form an integrally connected connecting piece 41 and connecting ring 42. Therefore, both connecting piece 41 and connecting ring 42 comprise multiple layers of fabric that are bonded together, with the multiple layers of fabric in connecting piece 41 corresponding to the multiple layers of fabric in connecting ring 42 and integrally connected. Preferably, the fabric is folded at least three times; in other words, connecting assembly 4 comprises at least five layers.

[0069] Preferably, the thickness of the blocking piece 2 and the connecting piece 41 are both 5 mm or more.

[0070] It is understandable that the blocking piece and the connecting assembly are not limited to including multiple layers of cloth sheets, and in other embodiments, they may also be several layers of membrane sheets.

[0071] In the description of the present invention, it should be understood that the terms "center", "length", "thickness", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0072] In addition, in the description of the present invention, “a plurality of” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0073] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0074] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0075] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0076] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments made by ordinary technicians in this field are all within the scope of protection of the present invention.

Claims

1. A remote manually controlled gas extraction device, characterized in that: include: An extraction pipe group (1), the extraction pipe group (1) comprising a main pipe (11), a screen pipe (12) and a branch pipe (13), the screen pipe (12) and the branch pipe (13) both being arranged on the main pipe (11) and spaced apart along a flow direction of a medium in the main pipe (11), the branch pipe (13) being provided with an openable and closable opening; a blocking piece (2), the blocking piece (2) being arranged between the main pipe (11) and the sieve tube (12) to separate the lumen of the main pipe (11) from the lumen of the sieve tube (12); A pull rope (3), the pull rope (3) being arranged in the extraction tube group (1), one end of the pull rope (3) being connected to the blocking piece (2), the other end of the pull rope (3) being located in the branch pipe (13), the pull rope (3) being used to pull the blocking piece (2) and rupture the blocking piece (2); The extraction pipe group (1) further comprises a branch cover (14), the branch cover (14) being detachably connected to the branch pipe (13) to open and close the opening, the branch cover (14) having a rope ring (141), when the branch cover (14) closes the opening, the rope ring (141) is located in the branch pipe (13), and the rope ring (141) is connected to the other end of the pull rope (3); The extraction pipe group (1) further comprises a main line cover (15), a straight tee (16), a main pipe body (17) and an oblique tee (18). Of the two oppositely arranged pipe openings of the straight tee (16), one pipe opening is arranged at one end of one of the main pipe bodies (17), and the other pipe opening is provided with the main line cover (15). The remaining pipe openings of the straight tee (16) other than the two oppositely arranged pipe openings are provided with the blocking piece (2) and the screen tube (12), and the blocking piece (2) is located between the remaining pipe openings and the screen tube (12). 8) Of the two oppositely arranged pipe openings, one pipe opening is arranged at the other end of one of the main pipe bodies (17), and the other pipe opening is used to connect to an exhaust device or to connect to another of the main pipe bodies (17), so that the two oppositely arranged pipe openings of the main line cover (15), the straight tee (16), the main pipe body (17) and the oblique tee (18) form the main line (11), and the inclined pipe opening of the oblique tee (18) other than the two oppositely arranged pipe openings forms the branch line (13), and the inclined pipe opening is detachably connected to the branch line cover (14).

2. The remote manually controlled gas extraction device according to claim 1, characterized in that: The blocking piece (2) is provided with a tear line, so that the blocking piece (2) is broken along the tear line.

3. The remote manually controlled gas extraction device according to claim 2, characterized in that: The tear line separates the blocking piece (2) into a central portion and a peripheral portion, the peripheral portion surrounds the periphery of the central portion, and the central portion is connected to one end of the drawstring (3).

4. The remote manually controlled gas extraction device according to claim 3, characterized in that: It also includes a connecting component (4), which is bonded to the central part and connected to one end of the pull rope (3).

5. The remote manually controlled gas extraction device according to claim 4, characterized in that: The connecting assembly (4) comprises a connecting piece (41) and a connecting ring (42) connected to each other, wherein the connecting piece (41) is bonded to the central portion, and the connecting ring (42) is connected to one end of the pull rope (3).

6. The remote manually controlled gas extraction device according to claim 5, characterized in that: The projection of the connecting piece (41) on the blocking piece (2) coincides with the central portion or is located within the central portion.

7. The remote manually controlled gas extraction device according to claim 6, characterized in that: The central portion and the connecting piece (41) are both circular, and the diameter of the central portion is greater than or equal to the diameter of the connecting piece (41).

8. The remote manually controlled gas extraction device according to claim 5, characterized in that: The blocking piece (2), the connecting piece (41) and the connecting ring (42) all comprise multiple layers of cloth sheets bonded sequentially, the multiple layers of cloth sheets of the connecting piece (41) and the multiple layers of cloth sheets of the connecting ring (42) are arranged in a one-to-one correspondence, and the cloth sheets of the connecting piece (41) and the corresponding cloth sheets of the connecting ring (42) are integrally connected.

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