Underground anti-blocking long-life drainage device

Abstract

The utility model relates to the technical field of coal mine equipment, in particular to an underground anti-blocking long-service-life drainage device which comprises an annular base, a supporting assembly is arranged in the center of the end face of the annular base, an adjustable lifting rod is arranged in the center of the supporting assembly, and a cleaning suction cup is arranged in the center of the bottom of the annular base. A water absorption filter disc is arranged on the bottom end face of the cleaning suction cup, the inner side end face of the water absorption filter disc is of a hemispherical structure, and three inclined strut assemblies are evenly distributed on the edge of the bottom end face of the annular base. The underground anti-blocking long-service-life drainage device is fast to install and convenient to use; the contact area of the cleaning sucker is large, the water absorption filter disc has a good coal cinder blocking and filtering effect, coal cinder can be effectively filtered, the coal cinder can be effectively prevented from entering an air pump water absorption system to block a piston, and abrasion of an air pump diaphragm device is reduced. Meanwhile, the water absorption height can be adjusted through the adjustable lifting rod according to the depth of accumulated water, and use in different water pumping and draining scenes is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine equipment technical field especially relates to downhole anti -clogging long -life drainage device. BACKGROUND

[0002] The sewage mixed with coal slime in the driving face and the sporadic small pit water seriously hinder the promotion of the daily standardization work in the mine; the downhole air pump, as the "able assistant" of the drainage worker, has the advantages of small size, light weight, convenient assembly and installation and the like;

[0003] In the prior art, the patent number CN102278141A discloses a new downhole roadway drainage device, which is arranged at the line of the roadway and other places where water inrush or water outburst may occur, or other important places, a one-way valve is connected between the trunk water pipes of each place, the direction of the one-way valve is consistent with the water outlet direction of the main trunk water pipe, a water storage tank is arranged at the corresponding place of the above-mentioned place, the water outlet of the water pump is connected with the trunk pipe of the place through a branch pipe, the water inlet of the water pump is connected with the water storage tank, a liquid sensor is arranged in the water storage tank, each water pump motor and the liquid sensor are connected with the control unit through a cable;

[0004] The water outlet of the drainage device in the above-mentioned patent is arranged in the deep pit of silt, which is often blocked by coal slime, causing the air pump to be stuck, and long-time operation may cause the piston of the air pump to be damaged; meanwhile, in the process of water suction and drainage, the small coal cinder is easy to be in the suction cup, and the cleaning is inconvenient; therefore, the downhole anti-clogging long-life drainage device is provided for the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] The utility model solves the problem of providing downhole anti-clogging long-life drainage device, and the installation is quick and convenient to use; the cleaning suction cup has a large contact area, can form a large negative pressure for water pumping; the water suction filter disc has a good coal cinder blocking and filtering effect, can effectively filter the coal cinder, but does not affect the drainage effect, can effectively prevent the coal cinder from entering the air pump water suction system to block the piston, and reduce the wear of the air pump diaphragm device; at the same time, according to the depth of the water, the water suction height can be adjusted through the adjustable lifting rod, so as to meet the use of different water pumping and drainage scenes.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The well down anti-blocking long-life drainage device, including annular base, the end face central of annular base is provided with support assembly, and the central of support assembly is provided with adjustable lifting rod, the bottom central of annolar base is provided with cleaning suction disc, and cleaning suction disc and the bottom one end of adjustable lifting rod are provided with cleaning assembly, the inner wall central of cleaning suction disc is provided with cleaning suction groove, and cleaning assembly is connected with cleaning suction groove, the outer wall one end of cleaning suction disc is inserted and installed with water suction pipe, and the inner side of water suction pipe is communicated with the inside of cleaning suction groove, the bottom end face of cleaning suction disc is provided with water suction filter disc, and the inner side end face of water suction filter disc is hemispherical structure, the bottom end face edge of annular base is evenly distributed with three inclined strut assemblies;

[0008] The first guide seat is provided in the inner central of the annular base, three cross beam rods are fixedly installed on the outer wall bottom side of the first guide seat by welding, and the other end of the three cross beam rods is fixedly connected with the inner wall of the annular base, a wear-resistant bushing is fixedly installed in the inner central of the first guide seat, and the outer wall of the adjustable lifting rod is connected with the inner wall of the wear-resistant bushing, a fastening screw seat is welded and installed on one side of the top of the outer wall of the first guide seat, a first locking screw rod is threadedly connected and installed on the end face central of the fastening screw seat, and one end of the first locking screw rod is tightly connected with the outer wall of the adjustable lifting rod by penetrating through the first guide seat, the fastening screw seat, the wear-resistant bushing.

[0009] Further, one end of the outer wall of the first locking screw rod is fixedly installed with a locking bracket by welding, and the locking bracket is a T-shaped structure; by setting the T-shaped locking bracket, the user can manually hold the locking bracket, which facilitates the rotation of the locking bracket, thereby driving the first locking screw rod to rotate, so that the stroke of the first locking screw rod in the fastening screw seat is changed.

[0010] Further, three mounting hangers are evenly welded and installed on the bottom end face of the annular base, and a second guide seat is fixedly installed between the three mounting hangers by welding, the second guide seat is located directly below the first guide seat, and one end of the bottom of the adjustable lifting rod penetrates through the second guide seat; by setting three mounting hangers, the second guide seat can have stable and firm support connection effect; when the adjustable lifting rod slides up and down in the central of the end face of the second guide seat, the second guide seat can have a guiding effect on the adjustable lifting rod, improving the movement stability of the adjustable lifting rod.

[0011] Further, the cleaning assembly comprises a load-bearing top seat fixedly installed at the bottom end of the adjustable lifting rod, and a fixed bearing is fixedly installed at the bottom end surface of the load-bearing top seat, vertical beams are welded around the bottom end surface of the load-bearing top seat, a driving gear is rotatably installed at the outer wall center of the vertical beam, a conical top cover is fixedly installed at the bottom end of the four vertical beams, the bottom of the conical top cover is fixedly connected with the bottom end surface of the cleaning suction disc, a transmission end cover is fixedly installed at the end surface center of the conical top cover, and the bottom end of the transmission end cover is abuttingly connected with the end surface of the cleaning suction disc, a cleaning rotating rod is insertedly installed at the end surface center of the transmission end cover, the top end of the cleaning rotating rod is insertedly installed in the inner center of the fixed bearing, a driven gear is fixedly installed at the outer side of the cleaning rotating rod, and the driven gear is meshingly connected with the driving gear, and a cleaning scraper is fixedly installed at the bottom end of the cleaning rotating rod penetrating through the cleaning suction disc and located at one end of the cleaning suction groove.

[0012] Further, the inclined support assembly comprises an inclined support leg fixedly installed at one side of the bottom end edge of the annular base by welding, the bottom of the inclined support leg is in arc structure, an adjusting sleeve is sleevedly installed at one side of the outer wall of the inclined support leg, a second locking screw is threadedly connected and installed at the outer wall center of the adjusting sleeve, one end of the second locking screw is penetratingly and abuttingly connected with the outer wall of the inclined support leg, two assembly back plates are fixedly installed at the other side end surface of the adjusting sleeve, a third locking screw is threadedly connected and installed at the end surface center of the assembly back plate, and a counterweight box is abuttingly connected with the other side end surface of the adjusting sleeve, and the two third locking screws are fixedly connected with the inner wall of the counterweight box penetrating through the assembly back plate.

[0013] Further, the bottom end surface edge of the cleaning suction disc is provided with a positioning hole, the bottom end surface of the water absorption filter disc is provided with a positioning screw, and the top end of the four positioning screws is fixedly connected with the four positioning holes; the positioning screw and the positioning hole are fastenedly connected, so that the water absorption filter disc is fixedly installed below the cleaning suction disc, the connection effect is firm, the disassembly and assembly are convenient and fast, and the use convenience is improved.

[0014] Further, the top end surface of the annular base is fixedly provided with a carrying handle on both sides by welding, and an anti-skid bushing is sleevedly installed at the outer side of the carrying handle; the carrying handle can be set to facilitate the lifting of the device, and the friction effect between the hands of the user and the carrying handle is improved, so that the device is prevented from slipping during carrying, and the carrying safety is improved.

[0015] The utility model discloses beneficial effect is: this downhole anti -blocking long -life drainage device, install fast, convenient to use, through setting up the inclined support subassembly can effectively improve the stability of overall structure, through the cleaning sucking disc can have greater contact area, can form pumping big negative pressure, and through the water suction filter disc has good coal cinder filter effect, effectively filters coal cinder, but does not influence drainage effect, can effectively prevent coal cinder from entering the piston of wind pump water suction system and block, reduce the wear and tear of wind pump diaphragm device, effectively prolong the service life of wind pump, save production purchase cost, simultaneously, because the coal cinder precipitation in the ponding and water flow delamination, according to the ponding depth can through adjustable lifting rod and support subassembly adjust the water suction height, avoid the coal cinder precipitation in the ponding influence pumping and drainage, adjustable lifting rod has stable lifting and angle adjusting function, satisfy the use of different pumping and drainage scene, and, through the cleaning subassembly can clean the coal cinder in the cleaning suction groove inner wall and scrape, effectively improve the convenience of cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the first overall structure schematic drawing of the utility model;

[0017] Figure 2 It is the second overall structure schematic drawing of the utility model;

[0018] Figure 3 It is the third overall structure schematic drawing of the utility model;

[0019] Figure 4 It is the overall front view of the utility model;

[0020] Figure 5 It is Figure 4 The section view schematic drawing of A-A;

[0021] Figure 6 It is the overall bottom view of the utility model.

[0022] Legend: 1, annular base, 2, support subassembly, 3, adjustable lifting rod, 4, cleaning subassembly, 5, cleaning sucking disc, 6, cleaning suction groove, 7, water suction pipe, 8, water suction filter disc, 9, inclined support subassembly, 10, carrying handle, 21, first guide seat, 22, crossbeam rod, 23, wear-resistant bushing, 24, fastening screw seat, 25, first locking screw, 26, locking support, 27, installation hanging bracket, 28, second guide seat, 41, bearing top seat, 42, vertical beam rod, 43, driving gear, 44, transmission end cover, 45, cleaning rotating rod, 46, fixed bearing, 47, driven gear, 48, cleaning scraper, 49, conical top cover, 91, inclined support foot, 92, adjusting sleeve, 93, second locking screw, 94, assembly backplate, 95, third locking screw, 96, counterweight box. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] The specific embodiments are given below.

[0025] Referring to Figures 1-6 , the downhole anti-blocking long-life drainage device comprises an annular base 1, a support assembly 2 is arranged at the center of the end face of the annular base 1, and an adjustable lifting rod 3 is arranged at the center of the support assembly 2, a cleaning suction disc 5 is arranged at the center of the bottom of the annular base 1, a cleaning assembly 4 is arranged between the cleaning suction disc 5 and the bottom end of the adjustable lifting rod 3, a cleaning suction groove 6 is formed in the inner wall of the cleaning suction disc 5, the cleaning assembly 4 is connected with the cleaning suction groove 6, a water suction pipe 7 is inserted and mounted at the center of one end of the outer wall of the cleaning suction disc 5, the inner side of the water suction pipe 7 is in communication with the inside of the cleaning suction groove 6, a water suction filter disc 8 is arranged at the bottom end face of the cleaning suction disc 5, and the inner side end face of the water suction filter disc 8 is in a hemispherical structure. In the process of water suction and drainage, fine coal cinder is sucked into the top of the water suction filter disc 8, and under the action of gravity, the coal cinder can slide off the inner side surface of the water suction filter disc 8, so as to be easily discharged from the fine hole of the water suction filter disc 8, thereby avoiding the accumulation of coal cinder. At the same time, due to the different depths of the fine holes, the absorbed coal cinder will form a differential collision in the process of water suction and drainage, so as to facilitate the crushing and separation of the coal cinder and reduce the adhesion and accumulation of the coal cinder. Three inclined support assemblies 9 are uniformly distributed at the bottom end face edges of the annular base 1. The annular base 1 is placed at a suitable position, the annular base 1 is supported by the three inclined support assemblies 9, the adjustable lifting rod 3 is fixed at a suitable height by the support assembly 2 according to the depth of accumulated water, the cleaning suction disc 5 and the water suction filter disc 8 are located inside the accumulated water, the external water suction and drainage pipe is connected with the water suction pipe 7, water suction and drainage are realized by the cleaning suction groove 6 and the water suction filter disc 8, and the inner wall of the cleaning suction groove 6 is cleaned by the cleaning assembly 4, so as to avoid the long-time adhesion and accumulation of fine coal cinder on the inner wall of the cleaning suction groove 6 and the blocking of the water suction pipe 7 affecting water suction and drainage.

[0026] The support assembly 2 comprises a first guide seat 21, which is arranged in the inner center of the annular base 1. The outer wall bottom side of the first guide seat 21 is fixedly installed with three cross beam rods 22 through welding, and the other end of the three cross beam rods 22 is fixedly connected with the inner wall of the annular base 1. The three cross beam rods 22 can stably support the first guide seat 21, thereby improving the structural stability of the first guide seat 21. A wear-resistant bushing 23 is fixedly installed in the inner center of the first guide seat 21, and the outer wall of the adjustable lifting rod 3 is connected with the inner wall of the wear-resistant bushing 23. The wear-resistant bushing 23 can effectively reduce the wear of the adjustable lifting rod 3 during lifting adjustment, thereby effectively improving the service life of the adjustable lifting rod 3. A fastening screw seat 24 is welded and installed on one side of the top of the outer wall of the first guide seat 21. A first locking screw 25 is threadedly connected and installed on the central end face of the fastening screw seat 24, and one end of the first locking screw 25 is tightly connected with the outer wall of the adjustable lifting rod 3 through the first guide seat 21, the fastening screw seat 24 and the wear-resistant bushing 23. A locking bracket 26 is fixedly installed on one end of the outer wall of the first locking screw 25 through welding, and the locking bracket 26 has a T-shaped structure. The T-shaped locking bracket 26 is convenient for manual holding by the user, thereby facilitating the rotation of the locking bracket 26, and the rotation of the first locking screw 25 is driven, so that the stroke of the first locking screw 25 in the fastening screw seat 24 is changed. Three mounting hangers 27 are uniformly welded and installed on the bottom end face of the annular base 1, and a second guide seat 28 is fixedly installed between the three mounting hangers 27 through welding. The second guide seat 28 is located directly below the first guide seat 21, and one end of the bottom of the adjustable lifting rod 3 penetrates the second guide seat 28. The three mounting hangers 27 can stably and firmly support the second guide seat 28. When the adjustable lifting rod 3 is lifted and slid in the central end face of the second guide seat 28, the second guide seat 28 can guide the adjustable lifting rod 3, thereby improving the movement stability of the adjustable lifting rod 3. The adjustable lifting rod 3 can be pulled to lift and adjust the height of the cleaning sucker 5 and the cleaning assembly 4 in the central end face of the first guide seat 21 and the second guide seat 28. Meanwhile, the adjustable lifting rod 3 can rotate 360° in the central end face of the first guide seat 21 and the second guide seat 28, thereby meeting the water pumping and draining requirements of different depths of accumulated water.

[0027] The cleaning assembly 4 comprises a bearing top seat 41 fixedly installed at the bottom end of the adjustable lifting rod 3, and a fixed bearing 46 is fixedly installed at the bottom end surface of the bearing top seat 41, vertical beam rods 42 are welded around the bottom end surface of the bearing top seat 41, a driving gear 43 is rotatably installed at the outer wall of the vertical beam rod 42, a conical top cover 49 is fixedly installed at the bottom end of the four vertical beam rods 42, and the bottom end of the conical top cover 49 is fixedly connected with the bottom end surface of the cleaning suction disc 5, a transmission end cover 44 is fixedly installed at the end surface of the conical top cover 49, and the bottom end of the transmission end cover 44 is abuttingly connected with the end surface of the cleaning suction disc 5, a cleaning rotating rod 45 is insertedly installed at the end surface of the transmission end cover 44, and the top end of the cleaning rotating rod 45 is insertedly installed in the inner center of the fixed bearing 46, a driven gear 47 is fixedly installed at the outer side of the cleaning rotating rod 45, and the driven gear 47 is meshingly connected with the driving gear 43, a cleaning scraper 48 is fixedly installed at the bottom end of the cleaning rotating rod 45 through the cleaning suction disc 5 at one end of the cleaning suction groove 6, and the outer wall of the cleaning scraper 48 is abuttingly connected with the inner wall of the cleaning suction groove 6; the bearing top seat 41, the vertical beam rod 42 and the conical top cover 49 are arranged to facilitate the adjustment of the cleaning suction disc 5 according to the lifting height and the rotating angle of the adjustable lifting rod 3; due to the top structure shape of the bearing top seat 41 and the conical top cover 49, the accumulation of cinder can be avoided, thereby improving the cleaning convenience; and due to the fact that the small cinder is easy to adhere to the inner wall of the cleaning suction groove 6, the driving gear 43 is manually rotated, the driving gear 43 is rotated at the outer side of the vertical beam rod 42, the driven gear 47 is further rotated, the cleaning rotating rod 45 is rotated at the end surface of the transmission end cover 44 and the fixed bearing 46, the cleaning rotating rod 45 drives the cleaning scraper 48 to rotate in the cleaning suction groove 6, thereby the small cinder on the inner wall of the cleaning suction groove 6 can be scraped and cleaned, and the inside of the cleaning suction disc 5 is discharged through the water filter disc 8.

[0028] The inclined support assembly 9 comprises inclined support feet 91 fixedly installed on one side of the bottom end edge of the annular base 1 by welding, and the bottom of the inclined support feet 91 is of an arc structure, an adjusting sleeve 92 is sleeved and installed on one side of the outer wall of the inclined support feet 91, a second locking screw 93 is threadedly connected and installed on the outer wall of the adjusting sleeve 92, one end of the second locking screw 93 is in abutting and clamping connection with the outer wall of the inclined support feet 91 through the adjusting sleeve 92, two assembly back plates 94 are fixedly installed on the other side end face of the adjusting sleeve 92, a third locking screw 95 is threadedly connected and installed on the end face center of the assembly back plate 94, a counterweight box 96 is attached to the other side end face of the adjusting sleeve 92, and the two third locking screws 95 are fixedly connected with the inner wall of the counterweight box 96 through the assembly back plate 94; the annular base 1 can be supported by the three inclined support feet 91, the adjusting sleeve 92 can slide on the outer side of the inclined support feet 91 according to the depth of the accumulated water, the second locking screw 93 is used to fix the adjusting sleeve 92 on the outer side of the inclined support feet 91, the counterweight box 96 is attached to the outer side of the assembly back plate 94, the third locking screw 95 is used to fixedly connect the assembly back plate 94 with the inner wall of the counterweight box 96, and the large coal cinder is placed in the counterweight box 96, so that the inclined support feet 91 can be counterweighted, and the structural stability of the annular base 1 is improved.

[0029] Positioning holes are formed around the bottom end face edge of the cleaning suction disc 5, positioning screws are inserted and installed around the bottom end face of the water suction filter disc 8, and the top end of the four positioning screws is fixedly connected with the four positioning holes; the positioning screws and the positioning holes are fastened and connected, so that the water suction filter disc 8 is fixedly installed below the bottom of the cleaning suction disc 5, the connection effect is firm, the disassembly and assembly are convenient and fast, and the convenience of use is improved.

[0030] Carrying handles 10 are fixedly installed on both sides of the top end face of the annular base 1 by welding, and anti-skid bushings are sleeved and installed on the outer sides of the carrying handles 10; the carrying handles 10 can be used to facilitate the carrying and lifting of the device, and the anti-skid bushings can improve the friction effect between the hands of the user and the carrying handles 10, so that slipping during carrying is avoided, and the carrying safety is improved.

[0031] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A downhole anti-plugging long-life drainage device, characterized in that, Include: Annular base (1), the central part of the end face of the annular base (1) is provided with a support assembly (2), and the central part of the support assembly (2) is provided with an adjustable lifting rod (3), the bottom central part of the annular base (1) is provided with a cleaning suction disc (5), and the cleaning suction disc (5) and the bottom end of the adjustable lifting rod (3) are provided with a cleaning assembly (4); Cleaning suction groove (6), the inner wall of the cleaning suction disc (5) is provided with a cleaning suction groove (6), and the cleaning assembly (4) is connected with the cleaning suction groove (6), one end of the outer wall of the cleaning suction disc (5) is inserted and mounted with a water suction pipe (7), and the inner side of the water suction pipe (7) is communicated with the inside of the cleaning suction groove (6); Suction filter disc (8), the bottom end face of the cleaning suction disc (5) is provided with a water suction filter disc (8), and the inner side end face of the water suction filter disc (8) is a hemispherical structure, and the bottom end face of the annular base (1) is uniformly distributed with three inclined support assemblies (9); Support assembly (2), the support assembly (2) includes a first guide seat (21), the first guide seat (21) is arranged in the inner central part of the annular base (1), the outer wall bottom side of the first guide seat (21) is fixedly installed with three cross beam rods (22) through welding, and the other end of the three cross beam rods (22) is fixedly connected with the inner wall of the annular base (1), the inner central part of the first guide seat (21) is fixedly installed with a wear-resistant bushing (23), and the outer wall of the adjustable lifting rod (3) is connected with the inner wall of the wear-resistant bushing (23), the outer wall top side of the first guide seat (21) is welded with a fastening screw seat (24), the end face of the fastening screw seat (24) is connected with a first locking screw rod (25) through thread connection, and one end of the first locking screw rod (25) penetrates the outer wall top of the first guide seat (21), the fastening screw seat (24), the wear-resistant bushing (23) and the adjustable lifting rod (3) and is connected tightly.

2. The downhole anti-plugging long-life drainage device according to claim 1, characterized in that, The outer wall of the first locking screw rod (25) is fixedly installed with a locking bracket (26) through welding, and the locking bracket (26) is a T-shaped structure.

3. The downhole anti-plugging long-life drainage device according to claim 2, characterized in that, The bottom end face of the annular base (1) is uniformly installed with three installation hangers (27) through welding, and the second guide seat (28) is fixedly installed between the three installation hangers (27) through welding, the second guide seat (28) is located directly below the bottom of the first guide seat (21), and one end of the bottom of the adjustable lifting rod (3) penetrates the second guide seat (28).

4. The downhole anti-plugging long-life drainage device according to claim 3, characterized in that, The cleaning assembly (4) comprises a bearing top seat (41) fixedly installed at the bottom end of the adjustable lifting rod (3), and a fixed bearing (46) is fixedly installed at the bottom end surface of the bearing top seat (41); vertical beam rods (42) are welded around the bottom end surface of the bearing top seat (41), and a driving gear (43) is rotatably installed at the central outer wall of each vertical beam rod (42); a conical top cover (49) is fixedly installed at the bottom end of each vertical beam rod (42), and the bottom end of the conical top cover (49) is fixedly connected with the bottom end surface of the cleaning suction disc (5); a transmission end cover (44) is fixedly installed at the central end surface of the conical top cover (49), and the bottom end of the transmission end cover (44) is attached to the end surface of the cleaning suction disc (5); a cleaning rotating rod (45) is insertedly installed at the central inside of the fixed bearing (46), and a driven gear (47) is fixedly installed at the outer side of the cleaning rotating rod (45); the driven gear (47) is meshingly connected with the driving gear (43); and a cleaning scraper (48) is fixedly installed at the bottom end of the cleaning rotating rod (45) and located at one end of the cleaning suction groove (6) through the cleaning suction disc (5), and the outer wall of the cleaning scraper (48) is attached to the inner wall of the cleaning suction groove (6).

5. The downhole anti-plugging long-life drainage device according to claim 4, characterized in that, The inclined support assembly (9) comprises an inclined support leg (91) fixedly installed at the bottom end edge of one side of the annular base (1) by welding, and the bottom end of the inclined support leg (91) is in an arc structure; an adjusting sleeve (92) is sleevedly installed at the outer wall of one side of the inclined support leg (91); a second locking screw rod (93) is threadedly connected and installed at the central outer wall of the adjusting sleeve (92), and one end of the second locking screw rod (93) is attached to and tightly abuts against the outer wall of the inclined support leg (91) through the adjusting sleeve (92); two assembly back plates (94) are fixedly installed at the other side end surface of the adjusting sleeve (92); a third locking screw rod (95) is threadedly connected and installed at the central end surface of each assembly back plate (94); and a counterweight box (96) is attached to the other side end surface of the adjusting sleeve (92), and the two third locking screw rods (95) are fixedly connected with the inner wall of the counterweight box (96) through the assembly back plates (94).

6. The downhole anti-plugging long-life drainage device according to claim 5, characterized in that, Positioning holes are formed around the bottom end surface edge of the cleaning suction disc (5), and positioning screws are insertedly installed around the bottom end surface of the water suction filter disc (8), and the top ends of the four positioning screws are fixedly connected with the four positioning holes.

7. The downhole anti-plugging long-life drainage device according to claim 6, characterized in that, Carrying handles (10) are fixedly installed at the top end surfaces of both sides of the annular base (1) by welding, and anti-skid bushings are sleevedly installed at the outer sides of the carrying handles (10).

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