Pneumatic pump suitable for shale gas exploitation
By designing and installing components and connection mechanisms in the pneumatic pump, stable filtration and safe emission of gas are achieved, and the problem of easy damage to the filter net is solved, the equipment life is extended, maintenance costs are reduced, and the safety and continuity of shale gas mining is ensured.
Patent Information
- Application Number
- CN202510605132.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2025-08-01
AI Technical Summary
In the mining of shale gas, the filter mesh structure of existing pneumatic pumps is unstable and easy to break, and cannot effectively filter impurities, resulting in wear of equipment, increasing maintenance costs and downtime, affecting the continuity of mining operations.
A pneumatic pump including installation components, limiting components and connecting mechanisms is designed. It is filtered through a combination of the first and second circular filter plates, combined with threaded connections and hinged structures to ensure the stable installation of the filter plate, effectively intercept large and small particle impurities, and fix the pipeline through threaded connections to avoid the on-site discharge of combustible gases in the well site.
It realizes effective filtration of gas, extends equipment life, reduces maintenance costs, ensures the safety of well site operations, avoids fire and explosion hazards, and ensures the continuity of mining operations.
Smart Images
Figure CN120402357A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of pneumatic pumps, and in particular to a pneumatic pump suitable for shale gas extraction. Background Art
[0002] In shale gas extraction operations, efficient and stable extraction equipment is key to ensuring both efficiency and economic benefits. Pneumatic pumps are essential equipment for transporting various fluids (such as fracturing fluids and produced fluids) during shale gas extraction, and their performance directly impacts the entire extraction process.
[0003] According to announcement number CN214576944U, a pneumatic pump suitable for shale gas extraction includes a pneumatic pump body, which is provided with an air intake port, an exhaust port, a liquid inlet and a liquid injection port. The pneumatic pump body is provided with a filtering device for filtering the gas entering the air intake port; the exhaust port is connected to an exhaust pipeline, and the exhaust pipeline is provided with a check valve.
[0004] In view of the above description, the applicant believes that the following problems exist: During use, the device's simple filter structure and insecure installation made it prone to damage and displacement when dealing with the complex liquid composition of shale gas extraction (containing large amounts of solid particles and impurities), resulting in an inability to effectively filter impurities. Once impurities enter the pneumatic pump, they will cause increased wear on pump components, shorten the equipment's service life, increase maintenance costs and downtime, and seriously affect the continuity of extraction operations. Summary of the Invention
[0005] The object of the present invention is to provide a pneumatic pump suitable for shale gas extraction to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a pneumatic pump suitable for shale gas extraction, comprising a pneumatic pump, a pipeline and a conversion ring, wherein one end of the top of the pneumatic pump is fixedly connected to a pipeline, a connecting mechanism is provided on the pipeline and the conversion ring, a filtering mechanism is provided on the conversion ring, and a mounting mechanism is provided on the pipeline and the conversion ring; The filtering mechanism includes a mounting assembly and a limiting assembly, wherein the limiting assembly is arranged on the mounting assembly; The installation component includes a first chute, which is opened around the inner wall of the pipeline. At the center of the inner wall of the conversion ring, a fixing plate is fixedly connected. Inside the fixing plate, a long rod is fixedly connected. Springs are fixedly connected to the top and bottom of the fixing plate. The other side of the springs is fixedly connected to a connecting plate, and the other side of the connecting plate is fixedly connected to a plug. On both sides inside the first chute, there are sliding plates. Four sliding plates at the bottom are fixedly connected to a first circular filter plate inside, and four sliding plates at the top are fixedly connected to a second circular filter plate inside. Slots are opened around the inner sides of the first circular filter plate and the second circular filter plate, and the surface of the plug is inserted into the inside of the slots.
[0007] According to the above technical solution, through slots are opened around the inner sides of the second circular filter plate and the first circular filter plate, and the surface of the long rod is inserted through the through slots opened around the inner sides of the second circular filter plate and the first circular filter plate.
[0008] According to the above technical solution, the springs are arranged on the surface of the long rod, and the slots are arranged on one side of the through slots opened around the inner sides of the second circular filter plate and the first circular filter plate. Under the elastic force of the springs, the second circular filter plate and the first circular filter plate can be moved out of the conversion ring.
[0009] According to the above technical solution, the limiting component includes a connecting ring, which is fixedly connected to the center of the surface of the conversion ring. A first T-shaped chute is opened on the outer ring of the connecting ring. Four sides inside the first T-shaped chute are slidably connected with first T-shaped sliders. The outer sides of the first T-shaped sliders are fixedly connected to connecting seats. Fixing seats are fixedly connected to the top and bottom of the connecting seats. A first bolt is screwed inside the fixing seats and the connecting ring. Around the surface of the conversion ring, cylinders are respectively fixedly connected. Second chutes are opened around the inner walls of the cylinders. Jacking slots are respectively opened around the surfaces of the first circular filter plate and the second circular filter plate. Plug rods are inserted into the jacking slots. Sliding seats are fixedly connected around the surfaces of the plug rods. The surfaces of the sliding seats are slidably connected to the inside of the second chutes. One side of the fixing seat away from the connecting seat is hinged with a hinged plate, and the other side of the hinged plate is hinged with the surface of the plug rod. When the plug rod is driven to be inserted into the jacking slot, the first circular filter plate and the second circular filter plate can be fixed and set inside the conversion ring.
[0010] According to the above technical solution, through hole slots are densely opened around the inner sides of the conversion ring. The through hole slots densely opened around the inner sides of the conversion ring are arranged at the top and bottom of the connecting ring. The surface of the plug rod is inserted through the through hole slots densely opened around the inner sides of the conversion ring.
[0011] According to the above technical solution, the installation mechanism includes a fixing ring, the fixing ring is fixedly connected to the surface of the pipeline, an installation ring is fixedly connected to the upper surface of the conversion ring, a circular hole groove is opened at the top of the installation ring, an internal thread is opened in the inner circle of the circular hole groove opened at the top of the installation ring, mounting seats are fixedly connected to the four circumferences of the surface of the installation ring, a long groove is opened at the top of the mounting seat, a second T-shaped sliding groove is opened on the outer circle of the fixing ring, a second T-shaped sliding block is slidably connected to the four circumferences inside the second T-shaped sliding groove, a long plate is fixedly connected to the outer side of the second T-shaped sliding block, a T-shaped groove is opened on the outer side of the long plate, a T-shaped block is slidably connected inside the T-shaped groove, a long block is fixedly connected to the bottom of the T-shaped block, a long ring is fixedly connected to the side of the long plate close to the pipeline, an external thread is opened on the surface of the long ring, the long block is inserted into the long groove, and a second bolt is threadedly connected inside the long block and the mounting seat.
[0012] According to the above technical solution, the surface of the long ring is inserted into the circular hole groove opened at the top of the installation ring, the external thread is threadedly connected with the internal thread, and the external thread and the internal thread are threadedly connected, which can firmly insert the long ring into the circular hole groove opened at the top of the installation ring and is not easy to fall off.
[0013] According to the above technical solution, the connection mechanism includes a limiting ring, the limiting ring is fixedly connected to the lower surface of the conversion ring, mounting plates are fixedly connected to the four circumferences of the surface of the pipeline, a square groove is opened at the top of the mounting plate, the top of the square groove is open, square plates are fixedly connected to the four circumferences of the surface of the limiting ring, the surface of the square plate is inserted into the square groove, limiting seats are respectively fixedly connected to one side of the mounting plate and the surface of the limiting ring, a connecting rod is fixedly connected to the top of the lower limiting seat, the surface of the connecting rod is slidably connected to the inside of the upper limiting seat, a rotating plate is rotatably connected to the surface of the connecting rod, a rectangular groove is opened in the square plate, the side close to the connecting rod and the side far from the pipeline of the rectangular groove are open, the surface of the rotating plate is inserted into the rectangular groove, and a third bolt is threadedly connected inside the rotating plate and the square plate.
[0014] According to the above technical solution, a through groove is opened inside the mounting plate on the side far from the pipeline, and the surface of the rotating plate is inserted through the through groove opened inside the mounting plate on the side far from the pipeline.
[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: For the pneumatic pump suitable for shale gas extraction, through the installation assembly, both the first circular filter plate and the second circular filter plate drive the sliding plate to be inserted into the first sliding groove, the inserting block is inserted into the inserting slot, and the spring is in a compressed state. The first circular filter plate intercepts large-particle impurities, and then the second circular filter plate blocks tiny particles, so that the discharged gas is first filtered to remove possible carried oil stains, impurities, etc.
[0016] The pneumatic pump suitable for shale gas extraction drives the first T-shaped slider to slide in the first T-shaped chute by means of a limit component and the connecting seat. When the connecting seat drives the fixed seat to move, the insertion rod can be driven to be inserted into the jacking groove. The fixed seat and the connecting ring are fixed by a first bolt in a threaded manner, so that the first circular filter plate and the second circular filter plate can be fixed and arranged in the conversion ring. [[ID='1']]
[0017] For the pneumatic pump suitable for shale gas extraction, through the installation mechanism, the pipeline is inserted into the conversion ring. The long ring is toggled, so that the long ring drives the long plate, and the long plate drives the second T-shaped slider to slide in the second T-shaped chute. At the same time, the external thread and the internal thread are connected in a threaded manner, so that the long ring can be firmly inserted into the circular hole groove opened at the top of the installation ring and is not easy to fall off. At the same time, the long block is pushed to be inserted into the long groove, so that the pipeline can be fixedly inserted into the upper end inside the conversion ring. Moreover, the pipeline is connected to the gas well vent pipeline, and the gas discharged by the pneumatic pump can be discharged to a safe area, avoiding safety hazards such as fire and explosion caused by the on-site discharge of combustible gas at the well site and ensuring the safety of well site operations.
[0018] For the pneumatic pump suitable for shale gas extraction, through the connecting mechanism, the conversion ring is arranged in the pipeline. The square plate is inserted into the square groove. The rotating plate is toggled to rotate and be inserted into the rectangular groove on the surface of the connecting rod, so that the conversion ring can be fixedly installed at the outlet end of the pipeline, facilitating the filtration treatment of the gas to be discharged. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a three-dimensional structure diagram of the present invention; Figure 2 is a structural schematic diagram of the pneumatic pump; Figure 3 is a structural sectional schematic diagram of the installation component; Figure 4 is Figure 3 an enlarged structural schematic diagram at A in Figure 5 is a structural schematic diagram of the limit component; Figure 6 is Figure 5 a structural schematic diagram of the intercepted part in Figure 7 is a structural schematic diagram of the installation mechanism; Figure 8 is Figure 7 a structural schematic diagram of the intercepted part in Figure 9 is a structural schematic diagram of the connecting mechanism; Figure 10 isFigure 9 Schematic diagram of the enlarged structure at position B in the middle.
[0020] In the figure: 1, pipeline; 2, pneumatic pump; 3, filtering mechanism; 31, mounting component; 311, spring; 312, slot; 313, plug; 314, first circular filter plate; 315, slide plate; 316, connecting plate; 317, long rod; 318, fixing plate; 319, second circular filter plate; 3101, first chute; 32, limiting component; 321, hinged plate; 322, connecting seat; 323, first T-shaped chute; 324, connecting ring; 325, fixed seat; 326, first bolt; 327, first T-shaped slider; 328, sliding seat; 329, inserting rod; 3201, cylinder; 3202, second chute; 3203, jack slot; 4, pipeline; 5, mounting mechanism; 51, second bolt; 52, T-shaped block; 53, T-shaped groove; 54, second T-shaped chute; 55, second T-shaped slider; 56, fixing ring; 57, long plate; 58, long ring; 59, long block; 501, mounting seat; 502, external thread; 503, mounting ring; 504, long groove; 505, internal thread; 6, conversion ring; 7, connecting mechanism; 71, limiting ring; 72, square plate; 73, square groove; 74, third bolt; 75, rectangular groove; 76, mounting plate; 77, limiting seat; 78, connecting rod; 79, rotating plate. Detailed implementation mode
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0022] The present invention provides the following technical solutions: Embodiment 1
[0023] Combined with Figures 1 to 6 , a pneumatic pump suitable for shale gas extraction, including a pneumatic pump 2, a pipeline 4 and a conversion ring 6. One end of the top of the pneumatic pump 2 is fixedly connected with a pipeline 1. A connecting mechanism 7 is arranged on the pipeline 1 and the conversion ring 6. A filtering mechanism 3 is arranged on the conversion ring 6. A mounting mechanism 5 is arranged on the pipeline 4 and the conversion ring 6; The filtering mechanism 3 includes a mounting component 31 and a limiting component 32. The limiting component 32 is arranged on the mounting component 31; The installation component 31 includes a first sliding groove 3101, which is opened around the inner wall of the pipeline 4. At the center of the inner wall around the conversion ring 6, a fixing plate 318 is fixedly connected. Inside the fixing plate 318, a long rod 317 is fixedly connected. At the top and bottom of the fixing plate 318, springs 311 are fixedly connected. On the other side of the springs 311, connecting plates 316 are fixedly connected. On the other side of the connecting plates 316, inserting blocks 313 are fixedly connected. On both sides inside the first sliding groove 3101, sliding plates 315 are slidably connected. On the inner sides of the four bottom sliding plates 315, a first circular filter plate 314 is fixedly connected. On the inner sides of the four top sliding plates 315, a second circular filter plate 319 is fixedly connected. Slots 312 are opened around the inner sides of the first circular filter plate 314 and the second circular filter plate 319. The surface of the inserting block 313 is inserted into the inside of the slot 312. Through grooves are opened around the inner sides of the second circular filter plate 319 and the first circular filter plate 314. The surface of the long rod 317 is inserted through the through grooves opened around the inner sides of the second circular filter plate 319 and the first circular filter plate 314. The springs 311 are arranged on the surface of the long rod 317. The slots 312 are arranged on one side of the through grooves opened around the inner sides of the second circular filter plate 319 and the first circular filter plate 314. The limiting component 32 includes a connecting ring 324, which is fixedly connected to the center of the surface of the conversion ring 6. On the outer ring of the connecting ring 324, a first T-shaped sliding groove 323 is opened. Around the inner sides of the first T-shaped sliding groove 323, first T-shaped sliding blocks 327 are slidably connected. On the outer sides of the first T-shaped sliding blocks 327, connecting seats 322 are fixedly connected. At the top and bottom of the connecting seats 322, fixing seats 325 are fixedly connected. A first bolt 326 is threadedly connected between the fixing seats 325 and the connecting ring 324. Around the surface of the conversion ring 6, cylinders 3201 are respectively fixedly connected. On the inner walls around the cylinders 3201, second sliding grooves 3202 are opened. Around the surfaces of the first circular filter plate 314 and the second circular filter plate 319, insertion hole grooves 3203 are respectively opened. Inserting rods 329 are inserted into the inside of the insertion hole grooves 3203. Around the surfaces of the inserting rods 329, sliding seats 328 are fixedly connected. The surfaces of the sliding seats 328 are slidably connected to the inside of the second sliding grooves 3202. On the side of the fixing seat 325 away from the connecting seat 322, a hinge plate 321 is hingedly connected. On the other side of the hinge plate 321, it is hingedly connected to the surface of the inserting rod 329. Through hole grooves are densely opened around the inner sides of the conversion ring 6. The through hole grooves densely opened around the inner sides of the conversion ring 6 are arranged at the top and bottom of the connecting ring 324. The surface of the inserting rod 329 is inserted through the through hole grooves densely opened around the inner sides of the conversion ring 6.
[0024] Furthermore, the first circular filter plate 314 intercepts large particles of impurities, and then the second circular filter plate 319 blocks tiny particles, so that the exhausted gas is first filtered to remove oil, impurities, etc. that may be carried. When the connecting seat 322 drives the fixing seat 325 to move, the insertion rod 329 is driven to be inserted into the socket groove 3203, so that the first circular filter plate 314 and the second circular filter plate 319 can be fixedly established in the conversion ring 6. Example 2
[0025] See Figures 1 - 8 On the basis of the first embodiment, the mounting mechanism 5 further comprises a fixing ring 56, which is fixedly connected to the surface of the pipeline 4. The upper surface of the conversion ring 6 is fixedly connected to a mounting ring 503, a circular hole groove is provided on the top of the mounting ring 503, an internal thread 505 is provided on the inner ring of the circular hole groove provided on the top of the mounting ring 503, a mounting seat 501 is fixedly connected to the periphery of the surface of the mounting ring 503, a long groove 504 is provided on the top of the mounting seat 501, a second T-shaped slide groove 54 is provided on the outer ring of the fixing ring 56, and a second T-shaped slider 55 is slidably connected to the inner periphery of the second T-shaped slide groove 54. The second T-shaped slider 55 is fixedly connected to a long plate 57 on the outside, and a T-slot 53 is opened on the outside of the long plate 57. A T-block 52 is slidably connected inside the T-slot 53. A long block 59 is fixedly connected to the bottom of the T-block 52. A long ring 58 is fixedly connected to the side of the long plate 57 close to the pipeline 4. An external thread 502 is opened on the surface of the long ring 58. The long block 59 and the long groove 504 are plugged into each other. The long block 59 and the mounting seat 501 are internally threadedly connected with the second bolt 51. The surface of the long ring 58 is plugged into the circular hole groove opened on the top of the mounting ring 503, and the external thread 502 and the internal thread 505 are threadedly connected.
[0026] Furthermore, the pipeline 4 is inserted into the conversion ring 6, and the long ring 58 is turned, and the external thread 502 and the internal thread 505 are threadedly connected. The long ring 58 can be firmly inserted into the circular hole groove opened on the top of the installation ring 503 and is not easy to fall off. The long block 59 is inserted into the long groove 504, and the pipeline 4 can be fixedly inserted into the upper end of the conversion ring 6. The pipeline 4 is connected to the gas well venting pipeline, which can discharge the gas discharged by the pneumatic pump 2 to a safe area, avoiding safety hazards such as fire and explosion caused by the on-site discharge of combustible gas at the well site, and ensuring the safety of well site operations. Example 3
[0027] See Figures 1 - 10, and on the basis of embodiment 1, further obtained that the connecting mechanism 7 includes a limiting ring 71, the limiting ring 71 is fixedly connected to the lower surface of the conversion ring 6, the surface of the pipe 1 is fixedly connected with a mounting plate 76, the top of the mounting plate 76 is provided with a square groove 73, the top of the square groove 73 is set to be open, the surface of the limiting ring 71 is fixedly connected with a square plate 72, the surface of the square plate 72 and the inside of the square groove 73 are plugged in, one side of the mounting plate 76 and the surface of the limiting ring 71 are respectively fixedly connected to the limiting seat 77, the top of the lower limiting seat 77 is fixedly connected to a connecting rod 78, connecting The surface of the rod 78 is slidably connected to the interior of the upper limit seat 77, and the surface of the connecting rod 78 is rotatably connected to a rotating plate 79. A rectangular groove 75 is opened inside the square plate 72, and the rectangular groove 75 is set to be open on the side close to the connecting rod 78 and the side away from the pipe 1. The surface of the rotating plate 79 is plugged into the interior of the rectangular groove 75, and the rotating plate 79 and the square plate 72 are threadedly connected with a third bolt 74. A through groove is opened inside the side of the mounting plate 76 away from the pipe 1, and the surface of the rotating plate 79 is inserted into the through groove opened inside the side of the mounting plate 76 away from the pipe 1.
[0028] Furthermore, the conversion ring 6 is set up in the pipeline 1, the square plate 72 is inserted into the square groove 73, and the rotating plate 79 is rotated on the surface of the connecting rod 78 and inserted into the rectangular groove 75. The conversion ring 6 can be fixedly installed at the outlet end of the pipeline 1, which is convenient for filtering the required exhaust gas.
[0029] In actual operation, when this device is used, when the pneumatic pump 2 performs normal gas transmission work, the first circular filter plate 314 and the second circular filter plate 319 drive the slide plate 315 to be inserted into the first slide groove 3101, so that the first circular filter plate 314 and the second circular filter plate 319 are both arranged in the conversion ring 6, and the second circular filter plate 319 is arranged on the top of the first circular filter plate 314, and the filter hole diameter on the second circular filter plate 319 is smaller than the filter hole diameter size on the first circular filter plate 314. When the first circular filter plate 314 and the second circular filter plate 319 are set in the conversion ring 6, the plug 313 is inserted into the slot 312, and the spring 311 is in a squeezed state. When the connecting seat 322 is toggled, the first T-shaped slider 327 is driven to slide in the first T-shaped slider. The first filter plate 314 and the second filter plate 319 are fixed to the conversion ring 6, so that the first filter plate 314 can be fixed to the conversion ring 6. When the conversion ring 6 is installed in the pipeline 1, the square plate 72 can be driven to be inserted into the square groove 73, and the connecting rod 78 is inserted into the corresponding circular groove at the beginning in the upper limiting seat 77. When the rotating plate 79 is toggled to rotate on the surface of the connecting rod 78, the rotating plate 79 is inserted into the rectangular groove 75. The rotating plate 79 and the square plate 72 are threadedly fixed by the third bolt 74, and the conversion ring 6 can be fixedly installed at the outlet end of the pipeline 1, facilitating the filtration treatment of the gas to be discharged. Once again, the pipeline 4 is inserted into the conversion ring 6. At the same time, the long ring 58 is inserted into the circular hole groove opened at the top of the mounting ring 503. When the long ring 58 is toggled, the long ring 58 drives the long plate 57, and the long plate 57 drives the second T-shaped slider 55 to slide in the second T-shaped sliding groove 54. At the same time, the external thread 502 and the internal thread 505 are threadedly connected, so that the long ring 58 can be firmly inserted into the circular hole groove opened at the top of the mounting ring 503 and is not easy to fall off. At the same time, the long block 59 is pushed to drive the T-shaped block 52 to slide in the T-shaped groove 53, so that the long block 59 is inserted into the long groove 504. The long block 59 and the mounting seat 501 are threadedly fixed by the second bolt 51, and the pipeline 4 can be fixedly inserted into the upper end inside the conversion ring 6. Moreover, the pipeline 4 is connected to the gas well vent pipeline, and the gas discharged by the pneumatic pump 2 can be discharged to a safe area, avoiding safety hazards such as fire and explosion caused by the on-site discharge of combustible gas at the well site and ensuring the safety of well site operations.
[0030] It should be noted that in this article, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A pneumatic pump suitable for shale gas extraction, comprising a pneumatic pump (2), a pipeline (4) and a conversion ring (6), characterized in that: One end of the top of the pneumatic pump (2) is fixedly connected to a pipeline (1). A connecting mechanism (7) is provided on the pipeline (1) and the conversion ring (6). A filtering mechanism (3) is provided on the conversion ring (6). An installation mechanism (5) is provided on the pipeline (4) and the conversion ring (6). The filtering mechanism (3) includes an installation component (31) and a limiting component (32). The limiting component (32) is arranged on the installation component (31). The installation component (31) includes a first sliding groove (3101). The first sliding groove (3101) is opened around the inner wall of the pipeline (4). The center of the inner wall around the conversion ring (6) is fixedly connected with a fixing plate (318). A long rod (317) is fixedly connected inside the fixing plate (318). Springs (311) are fixedly connected to the top and bottom of the fixing plate (318). The other side of the spring (311) is fixedly connected with a connecting plate (316). The other side of the connecting plate (316) is fixedly connected with an insertion block (313). The two sides inside the first sliding groove (3101) are slidably connected with sliding plates (315). The inner sides of the four bottom sliding plates (315) are fixedly connected with a first circular filter plate (314). The inner sides of the four top sliding plates (315) are fixedly connected with a second circular filter plate (319). Slots (312) are opened around the inner sides of the first circular filter plate (314) and the second circular filter plate (319). The surface of the insertion block (313) is inserted into the inside of the slot (312).
2. The pneumatic pump suitable for shale gas extraction according to claim 1, wherein: Through grooves are opened around the inner sides of the second circular filter plate (319) and the first circular filter plate (314). The surface of the long rod (317) is inserted through the through grooves opened around the inner sides of the second circular filter plate (319) and the first circular filter plate (314).
3. The pneumatic pump suitable for shale gas extraction according to claim 2, characterized in that: The spring (311) is arranged on the surface of the long rod (317). The slot (312) is arranged on one side of the through grooves opened around the inner sides of the second circular filter plate (319) and the first circular filter plate (314).
4. The pneumatic pump suitable for shale gas extraction according to claim 3, wherein: The limiting component (32) includes a connecting ring (324), the connecting ring (324) is fixedly connected to the center of the surface of the conversion ring (6), a first T-shaped sliding groove (323) is formed in the outer ring of the connecting ring (324), a first T-shaped slider (327) is slidably connected to the periphery inside the first T-shaped sliding groove (323), a connecting seat (322) is fixedly connected to the outside of the first T-shaped slider (327), fixing seats (325) are fixedly connected to the top and bottom of the connecting seat (322), a first bolt (326) is threadedly connected between the fixing seat (325) and the connecting ring (324), cylinders (3201) are respectively fixedly connected to the periphery of the surface of the conversion ring (6), a second sliding groove (3202) is formed in the periphery of the inner wall of the cylinder (3201), jacking slots (3203) are respectively formed in the periphery of the surfaces of the first circular filter plate (314) and the second circular filter plate (319), a plug rod (329) is inserted into the jacking slot (3203), a sliding seat (328) is fixedly connected to the periphery of the surface of the plug rod (329), the surface of the sliding seat (328) is slidably connected to the inside of the second sliding groove (3202), a hinge plate (321) is hingedly connected to one side of the fixing seat (325) away from the connecting seat (322), and the other side of the hinge plate (321) is hingedly connected to the surface of the plug rod (329).
5. The pneumatic pump suitable for shale gas extraction according to claim 4, characterized in that: Through holes are densely formed in the periphery of the inside of the conversion ring (6), the through holes densely formed in the periphery of the inside of the conversion ring (6) are arranged at the top and bottom of the connecting ring (324), and the surface of the plug rod (329) is inserted through the through holes densely formed in the periphery of the inside of the conversion ring (6).
6. The pneumatic pump suitable for shale gas extraction according to claim 5, characterized in that: The installation mechanism (5) includes a fixing ring (56), the fixing ring (56) is fixedly connected to the surface of the pipeline (4), an installation ring (503) is fixedly connected to the upper side surface of the conversion ring (6), a circular hole slot is formed in the top of the installation ring (503), an internal thread (505) is formed in the inner ring of the circular hole slot formed in the top of the installation ring (503), installation seats (501) are fixedly connected to the periphery of the surface of the installation ring (503), a long slot (504) is formed in the top of the installation seat (501), a second T-shaped sliding groove (54) is formed in the outer ring of the fixing ring (56), a second T-shaped slider (55) is slidably connected to the periphery inside the second T-shaped sliding groove (54), a long plate (57) is fixedly connected to the outside of the second T-shaped slider (55), a T-shaped groove (53) is formed in the outside of the long plate (57), a T-shaped block (52) is slidably connected to the inside of the T-shaped groove (53), a long block (59) is fixedly connected to the bottom of the T-shaped block (52), a long ring (58) is fixedly connected to one side of the long plate (57) close to the pipeline (4), an external thread (502) is formed in the surface of the long ring (58), the long block (59) is inserted into the long slot (504), and a second bolt (51) is threadedly connected between the long block (59) and the installation seat (501).
7. The pneumatic pump suitable for shale gas extraction according to claim 6, characterized in that: The surface of the long ring (58) is inserted into the circular hole groove opened at the top of the mounting ring (503), and the external thread (502) is threadedly connected to the internal thread (505).
8. The pneumatic pump suitable for shale gas extraction according to claim 7, characterized in that: The connecting mechanism (7) includes a limiting ring (71). The limiting ring (71) is fixedly connected to the lower surface of the conversion ring (6). A mounting plate (76) is fixedly connected to the periphery of the surface of the pipe (1). A square groove (73) is opened at the top of the mounting plate (76). The top of the square groove (73) is open. Square plates (72) are fixedly connected to the periphery of the surface of the limiting ring (71). The surfaces of the square plates (72) are inserted into the inside of the square groove (73). Limiting seats (77) are respectively fixedly connected to one side of the mounting plate (76) and the surface of the limiting ring (71). A connecting rod (78) is fixedly connected to the top of the lower limiting seat (77). The surface of the connecting rod (78) is slidably connected to the inside of the upper limiting seat (77). A rotating plate (79) is rotatably connected to the surface of the connecting rod (78). A rectangular groove (75) is opened in the square plate (72). One side of the rectangular groove (75) close to the connecting rod (78) and the side far from the pipe (1) are open. The surface of the rotating plate (79) is inserted into the inside of the rectangular groove (75). A third bolt (74) is threadedly connected to the rotating plate (79) and the square plate (72).
9. The pneumatic pump suitable for shale gas extraction according to claim 8, wherein: A through groove is opened in the inside of one side of the mounting plate (76) far from the pipe (1). The surface of the rotating plate (79) is inserted through and connected to the through groove opened in the inside of one side of the mounting plate (76) far from the pipe (1).