A fastening device for gas drainage pipeline

Abstract

The present application relates to gas drainage technical field, and disclose a kind of fastening device for gas drainage pipeline, including drainage branch pipe and drainage main pipe, one end of the drainage branch pipe is inserted in the drainage main pipe, and the end of the drainage branch pipe close to the drainage main pipe is equipped with connecting portion, the pipe diameter of the connecting portion is less than the pipe diameter of the drainage main pipe, pipeline sealing assembly is equipped at the connecting portion, and the pipeline sealing assembly includes first sealing seat, and the first sealing seat is sleeved on the connecting portion.This technical solution is equipped with connecting seat and drainage main pipe with connecting block by connecting portion;When using, only need to connect drainage main pipe, drainage branch pipe by connecting seat, connecting block first, then the entire drainage pipe assembly can be placed into drainage hole, then when sealing drainage hole, in passing, the gap of connecting portion, drainage main pipe is sealed by grouting pipe, quick and efficient.

Description

Technical Field

[0001] The invention relates to the technical field of gas extraction, and in particular to a fastening device for a gas extraction pipeline. Background Art

[0002] When the amount of gas gushing out of a coal mine is large, it is difficult to dilute and remove it by ventilation. At this time, it is necessary to use extraction to remove the gas and reduce the ventilation burden. The gas extraction pipe is a pipe installed in a borehole for gas extraction. The gas extraction pipe needs to withstand a large negative pressure. Therefore, conventional gas extraction pipes are generally connected in the form of end flanges. The fixing bolts need to be installed one by one during the connection. Generally, in order to quickly reduce the concentration of gas, multiple gas extraction pipes need to be installed. The flange connection method is inefficient and labor-intensive. After the installation is completed, the flange protrudes from the gas extraction pipe, making it difficult to insert the extraction pipe into the hole, further increasing the labor intensity of the workers. Summary of the Invention

[0003] The present invention provides a fastening device for a gas extraction pipeline, which has the beneficial effect of being able to quickly complete the connection of the extraction pipe, and solves the problem of low efficiency in connecting the pipeline using flanges mentioned in the above background technology.

[0004] The present invention provides the following technical solution: a fastening device for a gas extraction pipeline, comprising a extraction branch pipe and a extraction main pipe, wherein one end of the extraction branch pipe is inserted into the extraction main pipe, and an end of the extraction branch pipe close to the extraction main pipe is provided with a connecting portion, wherein the pipe diameter of the connecting portion is smaller than the pipe diameter of the extraction main pipe, and a pipeline sealing assembly is provided at the connecting portion, and the pipeline sealing assembly includes a first sealing seat, which is sleeved on the connecting portion, and an end of the connecting portion away from the extraction branch pipe is provided with a limiting seat for limiting the first sealing seat;

[0005] The main pumping pipe is provided with a connecting block at one end close to the branch pumping pipe, and a slot is provided at one end of the connecting block. The connecting portion is provided with a connecting seat for connecting with the connecting block, and the main pumping pipe is provided with a grouting port.

[0006] As an optional solution of the fastening device for gas extraction pipeline described in the present invention, the connecting seat is symmetrically provided with connecting claws, and one end of the connecting claw is provided with a protrusion that fits with the slot, the protrusion is provided with a fixing hole, and the connecting block is provided with a pin hole whose position corresponds to the fixing hole.

[0007] As an optional solution of the fastening device for a gas extraction pipeline described in the present invention, the first sealing seat is located on the side of the grouting port close to the limit seat, and the first sealing seat is annular, and the first sealing seat is slidably connected to the connecting part.

[0008] As an optional solution of the fastening device for a gas extraction pipeline described in the present invention, the limit seat is detachably connected to the connecting part by bolts, and a first hollow sealing ring is provided between the limit seat and the first sealing seat, and the first hollow sealing ring is sleeved on the connecting part.

[0009] As an optional solution of the fastening device for a gas extraction pipeline described in the present invention, a second sealing seat is provided on one side of the connecting seat, the second sealing seat is sleeved on the connecting part, and a pressure plate is provided on the second sealing seat, a second hollow sealing ring is provided between the pressure plate and the second sealing seat, and the pressure plate and the second hollow sealing ring are both slidably connected to the second sealing seat.

[0010] As an optional solution of the fastening device for a gas extraction pipeline described in the present invention, an elastic extension component is provided on the side of the second sealing seat close to the first sealing seat, and the elastic extension component includes a fixed seat, one end of the fixed seat is provided with a first push plate, and the other end of the fixed seat is provided with a second push plate, the first push plate and the second push plate are elastically connected to the fixed seat through a spring, and a push plate limiting mechanism is provided in the middle of the fixed seat.

[0011] As an optional solution of the fastening device for a gas extraction pipeline described in the present invention, the fixing seat is cylindrical, and both ends of the fixing seat are provided with extension parts.

[0012] As an optional solution of the fastening device for gas extraction pipeline described in the present invention, the push plate limiting mechanism includes a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are both slidably connected to the extension part, one end of the first connecting plate is fixedly connected to the first push plate, and the other end of the first connecting plate is provided with a first card groove, one end of the second connecting plate is fixedly connected to the second push plate, and the other end of the second connecting plate is provided with a second card groove.

[0013] As an optional solution of the fastening device for gas extraction pipeline described in the present invention, a connecting plate locking mechanism is provided on one side of the fixing seat, and the connecting plate locking mechanism includes a movable plate, both ends of the movable plate are provided with connecting shafts, and the connecting shafts are rotatably connected to the extension part, the movable plate is elastically connected to the extension part through a torsion spring, and a latch tooth is provided on one side of the movable plate, and the latch tooth fits with the first latch groove and the second latch groove.

[0014] As an optional solution of the fastening device for a gas extraction pipeline described in the present invention, a groove is provided on a side of the movable plate away from the latching teeth, and the bottom of the groove is inclined.

[0015] The present invention has the following beneficial effects:

[0016] 1. A fastening device for a gas extraction pipeline. This technical solution provides an extraction branch pipe and an extraction main pipe, a connecting seat is provided on the extraction branch pipe, and a connecting block for connecting to the connecting seat is provided on the extraction main pipe. The extraction main pipe and the extraction branch pipe can be quickly pre-fixed through the connecting seat and the connecting block. A connecting portion is provided at one end of the extraction branch pipe, and the connecting portion is plugged into the extraction main pipe. A first sealing seat and a second sealing seat are provided on the connecting portion. The first sealing seat and the second sealing seat can seal both ends of the connecting portion. A grouting port is also provided on the extraction main pipe. The gap between the first sealing seat and the second sealing seat can be sealed by slurry, thereby achieving the purpose of sealing the connecting portion and the extraction main pipe.

[0017] When in use, you only need to connect the main pumping pipe and the branch pumping pipe together through the connecting seat and the connecting block, and then put the entire pumping pipe assembly into the pumping hole. Then, when sealing the pumping hole, you can also seal the gap between the connection part and the main pumping pipe through the grouting pipe. It is simple, fast and efficient.

[0018] 2. This kind of fastening device for gas extraction pipeline is provided with a first hollow sealing ring on one side of the first sealing seat and a second hollow sealing ring on one side of the second sealing seat. When slurry enters the gap between the first sealing seat and the second sealing seat, as the slurry enters, the pressure in the gap increases. Under the pressure of the slurry, the first sealing seat will move toward the first hollow sealing ring, thereby squeezing the first hollow sealing ring. The second sealing seat will move toward the second hollow sealing ring, thereby squeezing the second hollow sealing ring. After being squeezed, the first hollow sealing ring and the second hollow sealing ring will be deformed, and their outer rings will fit more tightly with the inner wall of the extraction main pipe, thereby effectively improving the sealing performance of the pipeline sealing assembly.

[0019] 3. A fastening device for a gas extraction pipeline, comprising a fixing seat, a first push plate provided at one end of the fixing seat, and a second push plate provided at the other end, the first push plate and the second push plate being elastically connected to the fixing seat, and a ring-shaped extension portion being symmetrically provided on the fixing seat, a first connecting plate and a second connecting plate being provided at the extension portion for limiting the first push plate and the second push plate, the first connecting plate and the second connecting plate being slidably connected to the extension portion, a first clamping groove being provided at one end of the first connecting plate, and a second clamping groove being provided at one end of the second connecting plate, and a movable plate being provided on one side of the fixing seat accordingly;

[0020] The movable plate is provided with a latching tooth that fits with the first latching groove and the second latching groove. The movable plate is elastically connected to the fixed seat by a torsion spring, and the movable plate is opposite to the grouting port. When the slurry enters the pumping and discharge main pipe through the grouting port, it will first fall on the movable plate. A triangular groove is provided on the movable plate. When the slurry enters the groove, the movable plate will lose balance and deflect. As the movable plate deflects, the latching tooth separates from the first latching groove and the second latching groove. At this time, the first push plate and the second push plate will pop out under the push of the spring. During the popping-out process, the first push plate collides with the first sealing seat, and the second push plate collides with the pressure plate. Under the squeezing of the first push plate and the second push plate, the first hollow sealing ring and the second hollow sealing ring will be instantly deformed, so that it is difficult for the slurry to enter the gap between them and the pumping and discharge main pipe, further improving the sealing ability of the pipeline sealing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a side view of the present invention.

[0023] Figure 3 It is a schematic diagram of the extraction and discharge branch pipe structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the extraction and discharge main pipe of the present invention.

[0025] Figure 5 It is a schematic diagram of the position structure of the elastic extension component and the extraction and release branch pipe of the present invention.

[0026] Figure 6 It is a schematic structural diagram of the elastic extension component of the present invention.

[0027] In the figure: 1. extraction and discharge branch pipe; 101. Connecting part; 2. extraction and discharge main pipe; 201. Grouting port; 3. First sealing seat; 4. Limiting seat; 5. Connecting block; 501. Slot; 502. Pin hole; 6. Connecting seat; 601. Connecting claw; 602. Protrusion; 603. Fixing hole; 7. First hollow sealing ring; 8. Second sealing seat; 9. Pressing plate; 10. Second hollow sealing ring; 11. Fixing seat; 1101. Extension part; 12. First push plate; 13. Second push plate; 14. Spring; 15. First connecting plate; 1501. First slot; 16. Second connecting plate; 1601. Second slot; 17. Movable plate; 1701. Tooth; 1702. Groove; 18. Connecting shaft; 19. Torsion spring. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figures 1 to 6 The present invention provides a fastening device for a gas drainage pipeline, comprising a drainage branch pipe 1 and a drainage main pipe 2. One end of the drainage branch pipe 1 is inserted into the drainage main pipe 2, and a connecting portion 101 is provided at the end of the drainage branch pipe 1 close to the drainage main pipe 2. The diameter of the connecting portion 101 is smaller than the diameter of the drainage main pipe 2. A pipeline sealing assembly is provided at the connecting portion 101, and the pipeline sealing assembly includes a first sealing seat 3, which is sleeved on the connecting portion 101. A limiting seat 4 for limiting the first sealing seat 3 is provided at the end of the connecting portion 101 away from the drainage branch pipe 1.

[0031] A connecting block 5 is provided at one end of the main pumping pipe 2 close to the branch pumping pipe 1, and a slot 501 is provided at one end of the connecting block 5. A connecting seat 6 for connecting to the connecting block 5 is provided on the connecting portion 101, and a grouting port 201 is provided on the main pumping pipe 2.

[0032] The connecting seat 6 is symmetrically provided with connecting claws 601, and one end of the connecting claw 601 is provided with a protrusion 602 that fits with the slot 501. The protrusion 602 is provided with a fixing hole 603, and the connecting block 5 is provided with a pin hole 502 whose position corresponds to the fixing hole 603.

[0033] The drilling and extraction method is a more commonly used gas extraction method. Its operating steps are: first drill an extraction hole in the coal seam, and then place the extraction pipe into the extraction hole. To prevent gas leakage, the gap between the extraction pipe and the extraction hole needs to be sealed. Therefore, a sealing component will be set on the outside of the extraction pipe. The more commonly used sealing component is the pressure grouting component. Its principle is simple: two blocking and one injection, blocking the two ends of the extraction pipe, and then grouting in the middle to achieve the purpose of sealing the extraction hole. Specifically, the sealing component consists of two fillers and a grouting pipe. The filler is sleeved on the outside of the extraction pipe, leaving a gap between the fillers. When in use, the slurry is injected into the gap between the fillers through the grouting pipe. After the filler solidifies, the sealing operation is completed, and the gas can be extracted through the extraction pipe at this time.

[0034] The technical scheme is characterized in that the drain branch pipe 1 and the drain main pipe 2 are arranged, the connecting seat 6 is arranged on the drain branch pipe 1, the connecting block 5 for connecting with the connecting seat 6 is arranged on the drain main pipe 2, the drain main pipe 2 and the drain branch pipe 1 can be quickly prefixed through the connecting seat 6 and the connecting block 5, the connecting part 101 is arranged at one end of the drain branch pipe 1 and is inserted into the drain main pipe 2, the first sealing seat 3 and the second sealing seat 8 are arranged on the connecting part 101 and can seal the two ends of the connecting part 101, the grouting hole 201 is further arranged on the drain main pipe 2, the gap between the first sealing seat 3 and the second sealing seat 8 can be sealed by the slurry, and the purpose of sealing the connecting part 101 and the drain main pipe 2 is achieved. In use, the drain main pipe 2 and the drain branch pipe 1 are connected together through the connecting seat 6 and the connecting block 5, and then the whole drain pipe assembly can be placed into the drain hole. When the drain hole is grouted and sealed, the gap between the connecting part 101 and the drain main pipe 2 is sealed through the grouting pipe, which is simple, fast and efficient.

[0035] Specific working principle: the connecting block 5 is fixedly connected with the drain main pipe 2, the insertion slot 501 is arranged at the end of the connecting block 5, the connecting seat 6 is annular, the connecting seat 6 and the connecting part 101 can be riveted together through the rivet during installation, which is simple and efficient, the connecting claw 601 is arranged on the connecting seat 6, the protrusion 602 matched with the insertion slot 501 is arranged on the connecting claw 601, the protrusion 602 is inserted into the connecting block 5 during use, the fixing hole 603 is further arranged on the protrusion 602, the pin hole 502 corresponding to the fixing hole 603 is arranged on the connecting block 5, the pin is inserted through the fixing hole 603 and the pin hole 502 after the connecting block 5 and the connecting claw 601 are inserted together, so that the connecting block 5 and the connecting seat 6 are pinned together, then the grouting pipe is communicated with the grouting hole 201, the slurry is injected into the drain main pipe 2, the gap between the first sealing seat 3 and the second sealing seat 8 at the connecting part 101 is sealed by the slurry, and the drain main pipe 2 and the drain branch pipe 1 can be used to drain gas after the gap between the connecting part 101 and the drain main pipe 2 is sealed.

[0036] Embodiment 2

[0037] This embodiment is an explanation and description based on embodiment 1, and specific reference can be made to FIG Figures 1 to 6 The first sealing seat 3 is located on the side of the grouting hole 201 close to the limiting seat 4, and the first sealing seat 3 is annular, and the first sealing seat 3 is slidably connected with the connecting part 101.

[0038] The limiting seat 4 is detachably connected with the connecting part 101 through the bolt, and the first hollow sealing ring 7 is arranged between the limiting seat 4 and the first sealing seat 3 and is sleeved on the connecting part 101.

[0039] A second sealing seat 8 is provided on one side of the connecting seat 6, and the second sealing seat 8 is sleeved on the connecting part 101, and a pressure plate 9 is provided on the second sealing seat 8, and a second hollow sealing ring 10 is provided between the pressure plate 9 and the second sealing seat 8, and the pressure plate 9 and the second hollow sealing ring 10 are both slidably connected to the second sealing seat 8.

[0040] When grouting is carried out, slurry can easily overflow through the gap between the first sealing seat 3, the second sealing seat 8 and the pumping main pipe 2, thereby causing an unsatisfactory sealing effect, or the slurry enters the pumping main pipe 2, causing blockage of the pumping main pipe 2. For this reason, the present technical solution provides a first hollow sealing ring 7 on one side of the first sealing seat 3 and a second hollow sealing ring 10 on one side of the second sealing seat 8. When the slurry enters the gap between the first sealing seat 3 and the second sealing seat 8, the pressure in the gap increases with the entry of the slurry. Under the extrusion of the slurry, the first sealing seat 3 will move toward the first hollow sealing ring 7, thereby squeezing the first hollow sealing ring 7, and the pressure plate 9 will move toward the second hollow sealing ring 10, thereby squeezing the second hollow sealing ring 10. After being squeezed, the first hollow sealing ring 7 and the second hollow sealing ring 10 will be deformed, and their outer rings will fit more tightly with the inner wall of the pumping main pipe 2, which can effectively improve the sealing performance of the pipeline sealing assembly.

[0041] Example 3

[0042] This embodiment is an explanation based on the embodiment 1. For details, please refer to FIG. Figures 1 to 6 An elastic extension component is provided on the side of the second sealing seat 8 close to the first sealing seat 3, and the elastic extension component includes a fixed seat 11, one end of the fixed seat 11 is provided with a first push plate 12, and the other end of the fixed seat 11 is provided with a second push plate 13, the first push plate 12 and the second push plate 13 are elastically connected to the fixed seat 11 through a spring 14, and a push plate limiting mechanism is provided in the middle of the fixed seat 11.

[0043] The fixing base 11 is cylindrical, and an extension portion 1101 is provided at both ends of the fixing base 11 .

[0044] The push plate limiting mechanism includes a first connecting plate 15 and a second connecting plate 16, and the first connecting plate 15 and the second connecting plate 16 are both slidably connected to the extension portion 1101, one end of the first connecting plate 15 is fixedly connected to the first push plate 12, and the other end of the first connecting plate 15 is provided with a first card groove 1501, one end of the second connecting plate 16 is fixedly connected to the second push plate 13, and the other end of the second connecting plate 16 is provided with a second card groove 1601.

[0045] When the slurry enters the gap between the first sealing seat 3 and the second sealing seat 8, as the slurry enters, the pressure inside the pumping main pipe 2 is slowly increased. Therefore, the first hollow sealing ring 7 and the second hollow sealing ring 10 will not be flattened instantly, but will be flattened slowly. In this process, slurry will enter the gap between the sealing ring and the pumping main pipe 2. The presence of slurry will affect the sealing performance of the sealing ring. In order to solve the above problem, the present technical solution is further provided with an elastic extension component at the connecting portion 101, which includes a fixed seat 11, a first push plate 12 is provided at one end of the fixed seat 11, and a second push plate 13 is provided at the other end. The first push plate 12 and the second push plate 13 are elastically connected to the fixed seat 11. At the same time, an annular extension portion 1101 is symmetrically provided on the fixed seat 11, and a first connecting plate 15 and a second connecting plate 16 for limiting the first push plate 12 and the second push plate 13 are provided at the extension portion 1101;

[0046] The first connecting plate 15 and the second connecting plate 16 are both slidably connected to the extension portion 1101, one end of the first connecting plate 15 is fixedly connected to the first push plate 12, and one end of the second connecting plate 16 is fixedly connected to the second push plate 13. A first card slot 1501 is provided at one end of the first connecting plate 15, and a second card slot 1601 is provided at one end of the second connecting plate 16. Correspondingly, a movable plate 17 is provided on one side of the fixed seat 11, and a card tooth 1701 that fits with the first card slot 1501 and the second card slot 1601 is provided on the movable plate 17. The movable plate 17 is elastically connected to the fixed seat 11 through a torsion spring 19, and the movable plate 17 is opposite to the grouting port 201. When the slurry enters the pumping main pipe 2 through the grouting port 201, it will first fall on the movable plate 17. On the plate 17, a triangular groove 1702 is provided on the movable plate 17. When the slurry enters the groove 1702, the movable plate 17 will lose balance and deflect. As the movable plate 17 deflects, the latch teeth 1701 separate from the first latch groove 1501 and the second latch groove 1601. At this time, the first push plate 12 and the second push plate 13 will pop out under the push of the spring 14. During the pop-up process, the first push plate 12 contacts the first sealing seat 3, and the second push plate 13 contacts the pressure plate 9. Under the squeezing of the first push plate 12 and the second push plate 13, the first hollow sealing ring 7 and the second hollow sealing ring 10 will be instantly deformed, so that it is difficult for the slurry to enter the gap between them and the pumping main pipe 2, further improving the sealing ability of the pipeline sealing assembly.

[0047] Example 4

[0048] This embodiment is an explanation based on the embodiment 1. For details, please refer to FIG. Figures 1 to 6A connecting plate locking mechanism is provided on one side of the fixed seat 11, and the connecting plate locking mechanism includes a movable plate 17. Connecting shafts 18 are provided at both ends of the movable plate 17, and the connecting shaft 18 is rotatably connected to the extension portion 1101. The movable plate 17 is elastically connected to the extension portion 1101 through a torsion spring 19. A latch tooth 1701 is provided on one side of the movable plate 17, and the latch tooth 1701 fits with the first latch groove 1501 and the second latch groove 1601.

[0049] A groove 1702 is defined on one side of the movable plate 17 away from the latching teeth 1701 , and the bottom of the groove 1702 is inclined.

[0050] The first connecting plate 15 and the second connecting plate 16 are locked by setting a connecting plate locking mechanism. The connecting plate locking mechanism includes a movable plate 17, which is rotatable and elastically connected to the fixed seat 11 through a torsion spring 19. A latching tooth 1701 is provided on the movable plate 17, which is matched with the first slot 1501 and the second slot 1601. Under normal circumstances, the latching tooth 1701 is inserted into the first slot 1501 and the second slot 1601. Since the spring 14 is in a compressed state, the first push plate 12 and the first connecting plate 16 are pressed. Plate 15; the second push plate 13 and the second connecting plate 16 exert a force away from the fixed seat 11. Therefore, under the action of the spring 14, the first connecting plate 15 and the second connecting plate 16 will not separate from the latching teeth 1701. When the slurry enters the groove 1702, the groove 1702 is provided with an inclined bottom, so the movable plate 17 will lose balance and flip over. As the movable plate 17 rotates, the latching teeth 1701 are separated from the first latching groove 1501 and the second latching groove 1601. At this time, the first connecting plate 15 and the second connecting plate 16 can move;

[0051] The first connecting plate 15 and the second connecting rod 16 are both slidably connected to the extension portion 1101. When in use, the first connecting plate 15 and the second connecting plate 16 also play a guiding role, which can make the first push plate 12 and the second push plate 13 move more smoothly when popping out.

[0052] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A fastening device for a gas extraction pipeline, comprising an extraction branch pipe (1) and an extraction main pipe (2), characterized in that: One end of the extraction and discharge branch pipe (1) is inserted into the extraction and discharge main pipe (2), and a connecting portion (101) is provided at one end of the extraction and discharge branch pipe (1) close to the extraction and discharge main pipe (2), the pipe diameter of the connecting portion (101) is smaller than the pipe diameter of the extraction and discharge main pipe (2), a pipeline sealing assembly is provided at the connecting portion (101), and the pipeline sealing assembly includes a first sealing seat (3), the first sealing seat (3) is sleeved on the connecting portion (101), and a limiting seat (4) for limiting the first sealing seat (3) is provided at one end of the connecting portion (101) away from the extraction and discharge branch pipe (1); The main pumping pipe (2) is provided with a connecting block (5) at one end close to the branch pumping pipe (1), and a slot (501) is provided at one end of the connecting block (5); the connecting portion (101) is provided with a connecting seat (6) for connecting to the connecting block (5); and the main pumping pipe (2) is provided with a grouting port (201); The first sealing seat (3) is located on a side of the grouting port (201) close to the limiting seat (4), and the first sealing seat (3) is annular, and the first sealing seat (3) is slidably connected to the connecting portion (101); The limiting seat (4) is detachably connected to the connecting portion (101) via bolts, and a first hollow sealing ring (7) is provided between the limiting seat (4) and the first sealing seat (3), and the first hollow sealing ring (7) is sleeved on the connecting portion (101); A second sealing seat (8) is provided on one side of the connecting seat (6), the second sealing seat (8) is sleeved on the connecting portion (101), and a pressure plate (9) is provided on the second sealing seat (8), a second hollow sealing ring (10) is provided between the pressure plate (9) and the second sealing seat (8), and the pressure plate (9) and the second hollow sealing ring (10) are both slidably connected to the second sealing seat (8).

2. A gas drainage pipeline fastening device according to claim 1, characterized in that: The connecting seat (6) is symmetrically provided with connecting claws (601), and one end of the connecting claw (601) is provided with a protrusion (602) that fits with the slot (501), the protrusion (602) is provided with a fixing hole (603), and the connecting block (5) is provided with a pin hole (502) whose position corresponds to the fixing hole (603).

3. A gas drainage pipeline fastening device according to claim 2, characterized in that: An elastic extension component is provided on the side of the second sealing seat (8) close to the first sealing seat (3), and the elastic extension component includes a fixed seat (11), one end of the fixed seat (11) is provided with a first push plate (12), and the other end of the fixed seat (11) is provided with a second push plate (13), the first push plate (12) and the second push plate (13) are elastically connected to the fixed seat (11) through a spring (14), and a push plate limiting mechanism is provided in the middle of the fixed seat (11).

4. A gas drainage pipeline fastening device according to claim 3, characterized in that: The fixing seat (11) is cylindrical, and both ends of the fixing seat (11) are provided with extension parts (1101).

5. A gas drainage pipeline fastening device according to claim 4, characterized in that: The push plate limiting mechanism includes a first connecting plate (15) and a second connecting plate (16), and the first connecting plate (15) and the second connecting plate (16) are both slidably connected to the extension portion (1101), one end of the first connecting plate (15) is fixedly connected to the first push plate (12), and the other end of the first connecting plate (15) is provided with a first card slot (1501), one end of the second connecting plate (16) is fixedly connected to the second push plate (13), and the other end of the second connecting plate (16) is provided with a second card slot.

6. A gas drainage pipeline fastening device according to claim 5, characterized in that: A connecting plate locking mechanism is provided on one side of the fixing seat (11), and the connecting plate locking mechanism includes a movable plate (17), connecting shafts (18) are provided at both ends of the movable plate (17), and the connecting shafts (18) are rotatably connected to the extension portion (1101), and the movable plate (17) is elastically connected to the extension portion (1101) via a torsion spring (19), and a latching tooth (1701) is provided on one side of the movable plate (17), and the latching tooth (1701) is matched with the first latching groove (1501) and the second latching groove (1601).

7. A gas drainage pipeline fastening device according to claim 6, characterized in that: A groove (1702) is provided on a side of the movable plate (17) away from the latching teeth (1701), and the bottom of the groove (1702) is inclined.

Images