Formation negative pressure pipeline cleaning device

Abstract

The utility model belongs to the technical field of equipment pipeline cleaning, and particularly relates to a formation negative pressure pipeline cleaning device which comprises a cleaning chamber, a water injection assembly and a backflow assembly, the water injection assembly and the backflow assembly are both communicated with the cleaning chamber, and a sweeping assembly is arranged in the cleaning chamber in a sliding mode. The bottom of the sweeping assembly is in contact with the bottom wall of the cleaning chamber, one end of the cleaning chamber is provided with a first discharging port, and the first discharging port corresponds to the sliding direction of the sweeping assembly; in the using process, cleaning liquid in the cleaning chamber can enter the formation negative pressure pipeline through the backflow assembly to clean the formation negative pressure pipeline, waste water in the formation negative pressure pipeline can enter the cleaning chamber through the water injection assembly, and solid impurities in the cleaning chamber can be swept to the first discharging opening through the sweeping assembly and discharged from the first discharging opening. And solid impurities in the cleaning chamber are prevented from entering the formation negative pressure pipeline along with the backflow assembly, so that the cleaning efficiency is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of equipment pipeline cleaning, and in particular relates to a formation negative pressure pipeline cleaning device. Background Art

[0002] Formation equipment is a kind of processing equipment used for automated processing of products. It is widely used in battery applications. It is generally divided into two types: one is the high-temperature pressure formation equipment for soft-pack batteries, and the other is the negative pressure formation equipment for square batteries. The working principles are different for different batteries. During the use of the equipment, the negative pressure pipeline in the equipment will produce solid impurities after a period of use and needs to be cleaned.

[0003] In the prior art, the negative pressure pipeline cleaning tool includes a storage tank, a cleaning pump, a diversion component, a reflux pipe, a reflux valve and a liquid outlet component. After cleaning, the cleaning liquid in the negative pressure pipeline will flow back into the storage tank and be discharged from the discharge pipe of the storage tank. However, the storage tank cannot process the solid impurities generated in the pipeline. These solid impurities may flow back into the negative pressure pipeline during the next cleaning, resulting in reduced cleaning efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a negative pressure pipeline cleaning device in response to the deficiencies of the prior art, which solves the technical problem that the storage tank in the prior art cannot process the solid impurities generated in the pipeline, and these solid impurities may flow back into the negative pressure pipeline during the next cleaning, resulting in reduced cleaning efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A formation negative pressure pipeline cleaning device comprises a cleaning chamber, a water injection assembly and a reflux assembly, wherein the water injection assembly and the reflux assembly are both connected to the cleaning chamber, a cleaning assembly is slidably arranged in the cleaning chamber, the bottom of the cleaning assembly contacts the bottom wall of the cleaning chamber, and one end of the cleaning chamber has a first discharge port, which corresponds to the sliding direction of the cleaning assembly.

[0007] Preferably, the cleaning assembly includes a first driving member, a screw, a sliding block and a scraper, the screw is arranged in the cleaning chamber, the first driving member is arranged at the other end of the cleaning chamber, the output shaft of the first driving member passes through the side wall of the cleaning chamber and is connected to the screw, the sliding block is threadedly connected to the screw, the scraper is arranged on the sliding block, and the bottom of the scraper is in contact with the bottom wall of the cleaning chamber.

[0008] Preferably, an adjustment component is connected between the sliding block and the scraper, and the adjustment component includes a connecting rod, an adjustment seat and a limit block. The adjustment seat is arranged on the scraper, the adjustment seat has a accommodating cavity, and the limit block is slidably arranged in the accommodating cavity. One end of the connecting rod is connected to the sliding block, and the other end of the connecting rod extends into the accommodating cavity and is connected to the limit block.

[0009] Preferably, the other end of the connecting rod is sleeved with an elastic member, and the elastic member is arranged in the accommodating cavity.

[0010] Preferably, a limit assembly is provided at the top of the cleaning room, and the limit assembly includes a sliding seat and a sliding rod. A first slide rail is provided at the top of the cleaning room, and the sliding rod is provided on the first slide rail. The sliding seat is sleeved on the sliding rod and is slidably connected to the first slide rail, and the bottom of the sliding seat is connected to the sliding block.

[0011] Preferably, a side of the bottom wall in the cleaning chamber close to the first discharge port is tilted downward.

[0012] Preferably, a second slide rail is provided on the side wall of the cleaning chamber, the second slide rail is parallel to the bottom wall of the cleaning chamber, and a guide block is provided on the adjustment seat, and the guide block is slidably connected to the second slide rail.

[0013] Preferably, it also includes a collecting component, which includes a collecting box, a second driving member, a rotating shaft, a collecting box and a discharge track, the collecting box is located at one end of the cleaning room, and the collecting box is provided with a first discharge channel, a second discharge channel and a third discharge channel which are connected in sequence, the second discharge channel is vertically arranged, the first discharge channel is located at the bottom end of the collecting box, the first discharge channel is connected with the cleaning room through the first discharge port, the third discharge channel is located at the upper end of the collecting box, a second discharge port is provided on the collecting box, the third discharge channel is connected with the second discharge port, the rotating shaft is rotatably arranged in the second discharge channel, the rotating shaft has spiral blades, the second driving member is arranged above the collecting box, the output shaft of the second driving member passes through the collecting box and is connected with the rotating shaft, the collecting box is arranged on a side of the collecting box close to the second discharge port, and the discharge track connects the second discharge port and the collecting box.

[0014] Preferably, the water injection assembly includes a water injection pipe and a first pump body arranged on the water injection pipe, the reflux assembly includes a reflux pipe and a second pump body arranged on the reflux pipe, a filter screen is arranged in the reflux pipe, one end of the water injection pipe and one end of the reflux pipe are both connected to the cleaning room, and the other end of the water injection pipe and the other end of the reflux pipe are both used to connect to the formation negative pressure pipeline.

[0015] Preferably, a through hole is provided on the top of the cleaning chamber, and a cover plate is provided above the through hole.

[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0017] The utility model discloses a formation negative pressure pipeline cleaning device, which is used in coordination with a cleaning chamber, a water injection component and a reflux component. The water injection component and the reflux component are both used to connect the cleaning chamber and the formation negative pressure pipeline. During use, the cleaning liquid in the cleaning chamber can enter the formation negative pressure pipeline through the reflux component to clean the formation negative pressure pipeline. The waste water in the formation negative pressure pipeline can enter the cleaning chamber through the water injection component and then be discharged from a first discharge port of the cleaning chamber. A cleaning component is slidably arranged in the cleaning chamber, and the first discharge port corresponds to the sliding direction of the cleaning component, so that solid impurities in the cleaning chamber can be cleaned to the first discharge port through the cleaning component and discharged from the first discharge port, thereby preventing the solid impurities in the cleaning chamber from entering the formation negative pressure pipeline along with the reflux component, thereby reducing the cleaning efficiency.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 The utility model is a schematic diagram of the structure of the negative pressure pipeline cleaning device.

[0021] Figure 2 It is a structural schematic diagram of the cleaning component of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the adjustment seat of the utility model.

[0023] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0024] Figure 5 It is a structural schematic diagram of the collection component of the utility model.

[0025] The reference numerals are described as follows:

[0026] 100. Forming negative pressure pipeline cleaning device;

[0027] 10. Clean room; 11. Bottom wall; 12. First discharge port; 13. First slide rail; 14. Second slide rail; 15. Through hole; 16. Cover plate;

[0028] 20. water injection assembly; 21. water injection pipe; 22. first pump body;

[0029] 30. reflux assembly; 31. reflux pipe; 33. second pump body;

[0030] 40. cleaning assembly; 41. first driving member; 42. screw rod; 43. sliding block; 44. scraper;

[0031] 50. Adjustment assembly; 51. Connecting rod; 52. Adjustment seat; 521. Accommodation cavity; 522. Guide block; 53. Limit block; 54. Elastic member;

[0032] 60. Limiting assembly; 61. Sliding seat; 62. Sliding rod;

[0033] 70. Collection assembly; 71. Collection box; 711. First discharge channel; 712. Second discharge channel; 713. Third discharge channel; 714. Second discharge port; 72. Second drive member; 73. Rotating shaft; 74. Collection box; 75. Discharge track; 76. Spiral blade;

[0034] 200. Create a negative pressure pipeline. DETAILED DESCRIPTION

[0035] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0036] Furthermore, the terms “first”, “second”, etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0037] In the utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0038] The following will be combined with the attached Figures 1 to 5 The technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] See also Figures 1 to 5 The formation negative pressure pipeline cleaning device 100 of the embodiment of the utility model includes a cleaning chamber 10, a water injection assembly 20 and a reflux assembly 30, the water injection assembly 20 and the reflux assembly 30 are both connected to the cleaning chamber 10, a cleaning assembly 40 is slidably arranged in the cleaning chamber 10, the bottom of the cleaning assembly 40 is in contact with the bottom wall 11 of the cleaning chamber 10, and one end of the cleaning chamber 10 has a first discharge port 12, and the first discharge port 12 corresponds to the sliding direction of the cleaning assembly 40.

[0040] Compared with the prior art, the formation negative pressure pipeline cleaning device 100 of the utility model embodiment, through the coordinated use of the cleaning chamber 10, the water injection component 20 and the reflux component 30, the water injection component 20 and the reflux component 30 are used to connect the cleaning chamber 10 and the formation negative pressure pipeline 200. During use, the cleaning liquid in the cleaning chamber 10 can enter the formation negative pressure pipeline 200 through the reflux component 30 to clean the formation negative pressure pipeline 200, and the waste water in the formation negative pressure pipeline 200 can be discharged through the water injection component 20. The water component 20 enters the cleaning chamber 10 and is then discharged from the first discharge port 12 of the cleaning chamber 10. A cleaning component 40 is slidably provided in the cleaning chamber 10. The first discharge port 12 corresponds to the sliding direction of the cleaning component 40, so that solid impurities in the cleaning chamber 10 can be cleaned to the first discharge port 12 by the cleaning component 40 and discharged from the first discharge port 12, thereby preventing solid impurities in the cleaning chamber 10 from entering the formation negative pressure pipeline 200 along with the reflux component 30, thereby reducing the cleaning efficiency.

[0041] See also Figure 2In some embodiments, the cleaning assembly 40 includes a first driving member 41, a screw rod 42, a sliding block 43 and a scraper 44, the screw rod 42 is arranged in the cleaning chamber 10, the first driving member 41 is arranged at the other end of the cleaning chamber 10, the output shaft of the first driving member 41 passes through the side wall of the cleaning chamber 10 and is connected to the screw rod 42, the sliding block 43 is threadedly connected to the screw rod 42, the scraper 44 is arranged on the sliding block 43, and the bottom of the scraper 44 contacts the bottom wall 11 of the cleaning chamber 10. Through the coordinated use of the first driving member 41, the screw rod 42, the sliding block 43 and the scraper 44, the screw rod 42 is arranged in the cleaning chamber 10, and the output shaft of the first driving member 41 is connected to the screw rod 42. The first driving member 41 can drive the screw rod 42 to rotate. The sliding block 43 is threadedly connected to the screw rod 42, and the sliding block 43 can drive the scraper 44 to slide, thereby realizing the cleaning of solid impurities in the cleaning chamber 10, preventing the solid impurities in the cleaning chamber 10 from entering the negative pressure pipeline 200 along with the reflux component 30, thereby reducing the cleaning efficiency.

[0042] See also Figures 2 to 4 In some embodiments, an adjustment component 50 is connected between the sliding block 43 and the scraper 44. Through the setting of the adjustment component 50, the adjustment component 50 is used to connect the sliding block 43 and the scraper 44, so that the distance between the sliding block 43 and the scraper 44 can be adjusted according to the height of the cleaning room 10, thereby preventing the bottom of the scraper 44 from being unable to contact the bottom wall 11 of the cleaning room 10, resulting in a reduction in the cleaning effect of the scraper 44.

[0043] Further, the adjustment assembly 50 includes a connecting rod 51, an adjustment seat 52 and a stop block 53, wherein the adjustment seat 52 is arranged on the scraper 44, the adjustment seat 52 has a receiving cavity 521, the stop block 53 is slidably arranged in the receiving cavity 521, one end of the connecting rod 51 is connected to the sliding block 43, and the other end of the connecting rod 51 extends into the receiving cavity 521 and is connected to the stop block 53. Through the coordinated use of the connecting rod 51, the adjustment seat 52 and the stop block 53, the adjustment seat 52 is arranged on the scraper 44, the stop block 53 is slidably arranged in the receiving cavity 521 of the adjustment seat 52, and the connecting rod 51 is used to connect the sliding block 43 and the stop block 53, so that under the action of gravity, the bottom of the scraper 44 can always keep in contact with the bottom wall 11 of the cleaning chamber 10 to ensure the cleaning effect of the scraper 44.

[0044] Furthermore, the other end of the connecting rod 51 is sleeved with an elastic member 54, and the elastic member 54 is arranged in the accommodating cavity 521. Through the arrangement of the elastic member 54, the elastic member 54 has a shock-absorbing effect, reducing the vibration generated by the first driving member 41 during operation, thereby stabilizing the cleaning assembly 40, protecting the cleaning assembly 40 from damage, and improving its service life. At the same time, the elastic member 54 can assist the adjustment assembly 50 in adjusting the distance between the sliding block 43 and the scraper 44, so as to ensure the running stability and comfort of the cleaning assembly 40, thereby improving the cleaning effect of the cleaning assembly 40.

[0045] See also Figures 2-3 In some embodiments, a limit assembly 60 is provided at the top of the cleaning chamber 10. The limit assembly 60 is provided at the top of the cleaning chamber 10 to limit the sliding direction of the cleaning assembly 40, thereby preventing the cleaning assembly 40 from being displaced during use, thereby affecting the cleaning effect of the cleaning assembly 40.

[0046] Further, the limiting assembly 60 includes a sliding seat 61 and a sliding rod 62. A first sliding rail 13 is provided at the top of the cleaning chamber 10. The sliding rod 62 is provided on the first sliding rail 13. The sliding seat 61 is sleeved on the sliding rod 62 and is slidably connected to the first sliding rail 13. The bottom of the sliding seat 61 is connected to the sliding block 43. Through the coordinated use of the sliding seat 61 and the sliding rod 62, the sliding rod 62 is provided on the first sliding rail 13 in the cleaning chamber 10, the sliding seat 61 is used to connect the sliding rod 62 and the sliding block 43, and the sliding seat 61 is slidably connected to the first sliding rail 13, so that the sliding direction of the cleaning assembly 40 can be limited to prevent the cleaning assembly 40 from being displaced during use, thereby affecting the cleaning effect of the cleaning assembly 40.

[0047] See also Figures 2-3 In some embodiments, the bottom wall 11 in the cleaning room 10 is tilted downward near the first discharge port 12. By setting the bottom wall 11 in the cleaning room 10, the bottom wall 11 in the cleaning room 10 is tilted downward near the first discharge port 12, which effectively assists the cleaning assembly 40 to discharge solid impurities and wastewater from the first discharge port 12.

[0048] In some embodiments, the side wall of the cleaning room 10 is provided with a second slide rail 14, and the second slide rail 14 is parallel to the bottom wall 11 of the cleaning room 10. The adjustment seat 52 is provided with a guide block 522, and the guide block 522 is slidably connected to the second slide rail 14. By providing the second slide rail 14, the adjustment seat 52 can be slidably connected to the second slide rail 14 through the guide block 522, so as to effectively guide the cleaning assembly 40, and prevent the cleaning assembly 40 from being displaced during use, thereby affecting the cleaning effect of the cleaning assembly 40. At the same time, the second slide rail 14 is parallel to the bottom wall 11 of the cleaning room 10 to ensure the smooth operation of the cleaning assembly 40.

[0049] See also Figures 3-4 Specifically, two first driving members 41, two screw rods 42 and two sliding blocks 43 are provided, and the two screw rods 42 are arranged in parallel in the cleaning room 10. The two first driving members 41 are arranged in a one-to-one correspondence with the two screw rods 42, and the two sliding blocks 43 are arranged in a one-to-one correspondence with the two screw rods 42. Of course, correspondingly, the adjustment assembly 50, the elastic member 54, the limit assembly 60, the first slide rail 13, the second slide rail 14 and the guide block 522 are also provided in two.

[0050] See also Figures 1-2 5. In some embodiments, the formation negative pressure pipeline cleaning device 100 further includes a collecting component 70. Through the setting of the collecting component 70, the collecting component 70 is connected to the first discharge port 12 of the cleaning chamber 10 to collect solid impurities and wastewater for subsequent centralized treatment.

[0051] Furthermore, the collecting assembly 70 includes a collecting box 71, a second driving member 72, a rotating shaft 73, a collecting box 74 and a discharging track 75. The collecting box 71 is located at one end of the cleaning chamber 10. The collecting box 71 is provided with a first discharging channel 711, a second discharging channel 712 and a third discharging channel 713 which are connected in sequence. The second discharging channel 712 is vertically arranged. The first discharging channel 711 is located at the bottom end of the collecting box 71. The first discharging channel 711 is connected to the cleaning chamber 10 through the first discharging port 12. The third discharging channel 713 is located at the collecting box 71. 1, a second discharge port 714 is arranged on the collection box 71, the third discharge channel 713 is communicated with the second discharge port 714, the rotating shaft 73 is rotatably arranged in the second discharge channel 712, the rotating shaft 73 has a spiral blade 76, the second driving member 72 is arranged above the collection box 71, the output shaft of the second driving member 72 passes through the collection box 71 and is connected with the rotating shaft 73, the collection box 74 is arranged on a side of the collection box 71 close to the second discharge port 714, and the discharge track 75 connects the second discharge port 714 and the collection box 74.

[0052] Through the coordinated use of the collecting box 71, the second driving member 72, the rotating shaft 73, the collecting box 74 and the discharging track 75, the first discharging channel 711 in the collecting box 71 is connected with the cleaning chamber 10 through the first discharging port 12, and the second discharging channel 712 is connected with the collecting box 74 through the second discharging port 714 and the discharging track 75. During use, solid impurities and wastewater can enter the first discharging channel 711 through the first discharging port 12, and then pass through the second discharging channel 712 and the third discharging channel 713 and be discharged from the second discharging port 714, and finally enter the collecting box 74 through the discharging track 75, thereby realizing the collection of solid impurities and wastewater. By vertically arranging the second discharge channel 712, the rotating shaft 73 is rotatably arranged in the second channel, and the output shaft of the second driving member 72 is connected to the rotating shaft 73, the second driving member 72 can drive the rotating shaft 73 to rotate, thereby driving the spiral blades 76 on the rotating shaft 73 to rotate, so that the solid impurities and wastewater entering the second discharge channel 712 can rise along the surface of the spiral blades 76, and then pass through the third discharge channel 713 and be discharged from the second discharge port 714, effectively assisting the discharge of solid impurities and wastewater.

[0053] See also Figure 1 In some embodiments, the water injection assembly 20 includes a water injection pipe 21 and a first pump body 22 arranged on the water injection pipe 21, the reflux assembly 30 includes a reflux pipe 31 and a second pump body 33 arranged on the reflux pipe 31, a filter net is arranged in the reflux pipe 31, one end of the water injection pipe 21 and one end of the reflux pipe 31 are both connected to the cleaning room 10, and the other end of the water injection pipe 21 and the other end of the reflux pipe 31 are used to communicate with the formation negative pressure pipeline 200. Through the coordinated use of the water injection pipe 21, the first pump body 22, the return pipe 31 and the second pump body 33, the water injection pipe 21 and the return pipe 31 are both used to connect the cleaning room 10 and the formation negative pressure pipeline 200. During use, the water injection pipe 21 extracts solid impurities and waste water in the formation negative pressure pipeline 200 into the cleaning room 10 through the first pump body 22, and the return pipe 31 can transport the cleaning liquid into the formation negative pressure pipeline 200 through the second pump body 33 to clean the formation negative pressure pipeline 200. At the same time, a filter screen is arranged in the return pipe 31 to effectively prevent the solid impurities in the cleaning room 10 from entering the formation negative pressure pipeline 200 along the return pipe 31, thereby reducing the cleaning efficiency.

[0054] See also Figure 1In some embodiments, a through hole 15 is provided on the top of the cleaning chamber 10, and a cover plate 16 is provided above the through hole 15. Through the coordinated use of the through hole 15 and the cover plate 16, the through hole 15 can be used to inject cleaning liquid and agents. When injecting agents, the agents can cause the wastewater in the cleaning chamber 10 to produce precipitate, so that the precipitate can be scraped off using the scraper 44 later. When injecting cleaning liquid, the cleaning liquid can enter the formation negative pressure pipeline 200 through the reflux pipe 31 and the second pump body 33 to clean the formation negative pressure pipeline 200.

[0055] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A negative pressure pipeline cleaning device, characterized in that: The invention comprises a cleaning chamber (10), a water injection assembly (20) and a reflux assembly (30), wherein the water injection assembly (20) and the reflux assembly (30) are both connected to the cleaning chamber (10), a cleaning assembly (40) is slidably arranged in the cleaning chamber (10), the bottom of the cleaning assembly (40) is in contact with the bottom wall (11) of the cleaning chamber (10), and one end of the cleaning chamber (10) has a first discharge port (12), and the first discharge port (12) corresponds to the sliding direction of the cleaning assembly (40).

2. The formation negative pressure pipeline cleaning device according to claim 1, characterized in that: The cleaning assembly (40) includes a first driving member (41), a screw rod (42), a sliding block (43) and a scraper (44), wherein the screw rod (42) is arranged in the cleaning chamber (10), the first driving member (41) is arranged at the other end of the cleaning chamber (10), the output shaft of the first driving member (41) passes through the side wall of the cleaning chamber (10) and is connected to the screw rod (42), the sliding block (43) is threadedly connected to the screw rod (42), the scraper (44) is arranged on the sliding block (43), and the bottom of the scraper (44) is in contact with the bottom wall (11) of the cleaning chamber (10).

3. The formation negative pressure pipeline cleaning device according to claim 2, characterized in that: An adjustment component (50) is connected between the sliding block (43) and the scraper (44), and the adjustment component (50) comprises a connecting rod (51), an adjustment seat (52) and a limit block (53). The adjustment seat (52) is arranged on the scraper (44), and the adjustment seat (52) has a receiving cavity (521). The limit block (53) is slidably arranged in the receiving cavity (521). One end of the connecting rod (51) is connected to the sliding block (43), and the other end of the connecting rod (51) extends into the receiving cavity (521) and is connected to the limit block (53).

4. The formation negative pressure pipeline cleaning device according to claim 3, characterized in that: The other end of the connecting rod (51) is sleeved with an elastic member (54), and the elastic member (54) is arranged in the accommodating cavity (521).

5. The formation negative pressure pipeline cleaning device according to claim 3, characterized in that: A limit assembly (60) is arranged at the top of the cleaning room (10), and the limit assembly (60) includes a sliding seat (61) and a sliding rod (62). A first sliding rail (13) is arranged at the top of the cleaning room (10), and the sliding rod (62) is arranged on the first sliding rail (13). The sliding seat (61) is sleeved on the sliding rod (62) and is slidably connected to the first sliding rail (13). The bottom of the sliding seat (61) is connected to the sliding block (43).

6. The formation negative pressure pipeline cleaning device according to claim 3, characterized in that: The bottom wall (11) in the cleaning chamber (10) is arranged to be tilted downward on one side close to the first discharge port (12).

7. The formation negative pressure pipeline cleaning device according to claim 6, characterized in that: A second slide rail (14) is provided on the side wall of the cleaning room (10), and the second slide rail (14) is parallel to the bottom wall (11) of the cleaning room (10). A guide block (522) is provided on the adjustment seat (52), and the guide block (522) is slidably connected to the second slide rail (14).

8. The formation negative pressure pipeline cleaning device according to claim 3, characterized in that: The cleaning chamber (10) further comprises a collecting assembly (70), wherein the collecting assembly (70) comprises a collecting box (71), a second driving member (72), a rotating shaft (73), a collecting box (74) and a discharge track (75); the collecting box (71) is located at one end of the cleaning chamber (10); a first discharge channel (711), a second discharge channel (712) and a third discharge channel (713) which are connected in sequence are arranged in the collecting box (71); the second discharge channel (712) is vertically arranged; the first discharge channel (711) is located at the bottom end of the collecting box (71); the first discharge channel (711) is connected to the cleaning chamber (10) through the first discharge port (12); the third discharge channel (713) is located at the bottom end of the collecting box (71); The upper end of the box (71) is provided with a second discharge port (714) on the collection box (71), the third discharge channel (713) is connected to the second discharge port (714), the rotating shaft (73) is rotatably arranged in the second discharge channel (712), the spiral blade (76) is on the rotating shaft (73), the second driving member (72) is arranged above the collection box (71), the output shaft of the second driving member (72) passes through the collection box (71) and is connected to the rotating shaft (73), the collection box (74) is arranged on a side of the collection box (71) close to the second discharge port (714), and the discharge track (75) connects the second discharge port (714) and the collection box (74).

9. The formation negative pressure pipeline cleaning device according to claim 1, characterized in that: The water injection assembly (20) comprises a water injection pipe (21) and a first pump body (22) arranged on the water injection pipe (21); the return assembly (30) comprises a return pipe (31) and a second pump body (33) arranged on the return pipe (31); a filter screen is arranged in the return pipe (31); one end of the water injection pipe (21) and one end of the return pipe (31) are both connected to the cleaning chamber (10); and the other end of the water injection pipe (21) and the other end of the return pipe (31) are both used to communicate with a formation negative pressure pipeline (200).

10. The formation negative pressure pipeline cleaning device according to claim 1, characterized in that: A through hole (15) is provided on the top of the cleaning chamber (10), and a cover plate (16) is provided above the through hole (15).

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