A well sweeping and suction tool

Abstract

The utility model discloses a well sweeping suction tool, in the technical field of drilling tools, comprising a suction pipe and a piston rod inserted into the suction pipe, a piston head connected to the piston rod is arranged in the suction pipe, the piston rod sleeve is provided with a fixed pipe connected to the end of the suction pipe, the fixed pipe is hinged with a clamping block, the piston rod sleeve is provided with a fixed cone sleeve that pushes the clamping block to bulge outward before suction and a loosening cone sleeve that pushes the clamping block to retract after suction, the fixed cone sleeve is located on the side of the clamping block away from the piston rod, and the loosening cone sleeve is located on the side of the clamping block close to the piston rod. The utility model has the beneficial effects of sucking sand and gravel and ensuring the safety of drilling.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tools, in particular to a well sweeping and suction tool. Background Art

[0002] Drilling is a mechanical engineering technology that uses deep drilling to exploit underground or seabed natural resources, or to take a cross-section of the strata and extract physical samples for experiments to obtain relevant data. Small-diameter drilling is a type of drilling technology that is widely used in groundwater positioning, core drilling, and other fields.

[0003] However, in actual application, especially when drilling in loose formations, gravel and rock powder at the bottom of the hole and well cannot be removed from the outer pipe during small-diameter drilling, resulting in high pump pressure, easy occurrence of in-hole accidents, and collapse of the hole and well. In the existing technology, removing gravel and rock powder by small-diameter drilling is a difficult problem to solve in drilling construction, especially limited by the extremely small drilling hole and drilling space.

[0004] Therefore, the prior art needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is that gravel and rock powder at the bottom of the hole are difficult to remove during small-diameter drilling in the prior art, which easily leads to drilling accidents. The utility model aims to provide a well sweeping and suction tool which adopts corresponding technical means and has the beneficial effect of sucking gravel and ensuring the safety of drilling.

[0006] The utility model is realized by the following technical solutions:

[0007] A well sweeping and suction tool comprises a suction pipe and a piston rod inserted into the suction pipe, a piston head connected to the piston rod is arranged in the suction pipe, the piston rod sleeve is provided with a fixed tube connected to the end of the suction pipe, the fixed tube is hinged with a clamping block, the piston rod sleeve is provided with a fixed cone sleeve for pushing the clamping block outward before suction and a loosening cone sleeve for pushing the clamping block to retract after suction, the fixed cone sleeve is located on the side of the clamping block away from the suction pipe, and the loosening cone sleeve is located on the side of the clamping block close to the suction pipe.

[0008] In the above technical solution, the well-sweeping suction tool includes a suction pipe, a piston rod and a fixed pipe. After the piston rod is inserted into the suction pipe, the air in the suction pipe is exhausted. The piston rod is pulled out of the suction pipe to suck the gravel and rock powder in the borehole into the inside of the suction pipe, which plays the role of cleaning the well and the hole. At the same time, a fixed pipe is installed at the top of the suction pipe to limit and fix it in the outer pipe. When the piston rod needs to exhaust air and move downward, the fixed cone sleeve on the piston rod gradually approaches the clamping block, and the loosened cone sleeve gradually moves away from the clamping block. The fixed cone sleeve abuts against the inner wall of the clamping block, and the clamping block is convexed outwards through the conical surface of the fixed cone sleeve. The convex clamping block abuts against the inner wall of the outer pipe, thereby fixing the well-sweeping suction tool inside the outer pipe. When the piston rod needs to suck gravel and rock powder from the bottom of the hole, the loose cone sleeve on the piston rod gradually approaches the clamping block, and the fixed cone sleeve gradually moves away from the clamping block. The loose cone sleeve abuts against the inner wall of the clamping block, and the conical surface of the fixed cone sleeve causes the outer convex part of the clamping block to retract inward, and the clamping block no longer abuts against the inner wall of the outer tube. The well sweeping and suction tool is pulled out of the outer tube through the steel cable to handle the gravel and rock powder sucked from the borehole.

[0009] Furthermore, in the utility model, the above-mentioned fixed tube is provided with a through hole one, the through hole one is provided with a connecting shaft, the clamping block is provided with a connecting hole for the connecting shaft to pass through, and the distance from the connecting hole to its end close to the suction tube is smaller than the distance from the connecting hole to its end away from the suction tube.

[0010] Furthermore, in the utility model, the clamping block is provided with an inclined surface adapted to the conical surfaces of the fixing cone sleeve and the releasing cone sleeve.

[0011] Furthermore, in the utility model, the piston rod is provided with a first abutment surface for pushing the right side of the fixed cone sleeve and a second abutment surface for pushing the left side of the fixed cone sleeve.

[0012] Furthermore, in the utility model, the piston rod is provided with a third abutment surface for pushing the left side of the release cone sleeve.

[0013] Furthermore, in the present invention, the inner diameter of the loosening cone sleeve is not less than the outer diameters of the first and second abutment surfaces.

[0014] Furthermore, in the utility model, a plug for blocking the fixed cone sleeve is provided at one end of the fixed tube away from the suction tube, and the plug is provided with a second through hole for the piston rod to pass through.

[0015] Furthermore, in the utility model, the suction pipe is provided with a blocking surface four for blocking the left side of the loosening cone sleeve.

[0016] Furthermore, in the utility model, a bottom valve is provided at the port of the suction tube, the bottom valve is provided with an inner cavity, a steel ball is provided in the inner cavity, the bottom valve has a through hole three smaller than the size of the steel ball, and a blocking rod for blocking the steel ball is also provided in the inner cavity.

[0017] Furthermore, in the present invention, a steel cable connection hole is provided at one end of the piston rod away from the suction pipe.

[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0019] 1. Suction of gravel: The well sweeping suction tool includes a suction pipe, a piston rod and a fixed pipe. After the piston rod is inserted into the suction pipe, the air in the suction pipe is exhausted. When the piston rod is pulled out from the suction pipe, the gravel and rock powder in the borehole are sucked into the inside of the suction pipe, which plays a role in cleaning the well and the borehole, avoiding high pump pressure, reducing accidents in the hole, and avoiding collapse in the hole and the well.

[0020] 2. Stable installation: A fixed tube is installed at the top of the suction pipe to limit and fix it in the outer pipe. When the piston rod needs to discharge air and move downward, the fixed cone sleeve on the piston rod gradually approaches the block, the loose cone sleeve gradually moves away from the block, the fixed cone sleeve abuts against the inner wall of the block, and the block is convexed by the conical surface of the fixed cone sleeve. The convex block abuts against the inner wall of the outer pipe, and then the well-sweeping suction tool is fixed inside the outer pipe. At this time, the well-sweeping suction tool can follow the outer pipe to the bottom of the hole and the bottom of the well. When the piston rod needs to suck gravel and rock powder at the bottom of the hole, the loose cone sleeve on the piston rod gradually approaches the block, the fixed cone sleeve gradually moves away from the block, the loose cone sleeve abuts against the inner wall of the block, and the convex part of the block is retracted inward by the conical surface of the fixed cone sleeve, and the block no longer abuts against the inner wall of the outer pipe. The well-sweeping suction tool is pulled out of the outer pipe through the steel cable to handle the gravel and rock powder sucked from the borehole, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0022] Figure 1 A structural schematic diagram of a well sweeping and suction tool provided by the utility model;

[0023] Figure 2 It is a schematic diagram of the interior of the fixed tube provided by the utility model;

[0024] Figure 3 A schematic diagram of the structure of the card block provided by the utility model;

[0025] Figure 4This is a schematic diagram of the interior of the bottom valve provided by the utility model;

[0026] Figure 5 This is an internal schematic diagram of another fixed tube provided by the utility model.

[0027] Markings and corresponding parts names in the accompanying drawings: 1-suction tube, 101-resistance surface four, 2-piston rod, 201-resistance surface one, 202-resistance surface two, 203-resistance surface three, 3-fixing tube, 301-block, 3011-connecting hole, 3012-inclined surface, 302-connecting shaft, 303-through hole one, 304-plug, 3041-through hole two, 4-fixing cone sleeve, 5-releasing cone sleeve, 6-bottom valve, 601-inner cavity, 602-steel ball, 603-through hole three, 604-blocking rod, 7-spring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the embodiments of the present utility model, it should be noted that if the terms "middle", "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, it is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description. In addition, the terms "one", "two", "three", "four", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the embodiments of the present utility model, "multiple" means at least 2.

[0031] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" 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 indirectly connected 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 present utility model can be understood according to specific circumstances.

[0032] Example 1

[0033] This embodiment provides a well sweeping and suction tool, such as Figure 1-Figure 4 As shown, the specific structure is described as follows.

[0034] Please refer to Figure 1 and Figure 2 As shown, the well sweeping and suction tool of this embodiment is mainly composed of three parts: a suction pipe 1, a piston rod 2 and a fixed pipe 3. The suction pipe 1 and the piston rod 2 are used together to suck gravel and rock powder at the bottom of the hole or well, and the fixed pipe 3 is used to be fixedly connected to the outer pipe of the borehole.

[0035] Further, combined with Figure 1 As shown, the suction tube 1 and the fixed tube 3 are both made of metal round tubes. The fixed tube 3 is fixed at the top end of the suction tube 1. The piston rod 2 passes through the fixed tube 3 and is inserted into the interior of the suction tube 1. A piston head is installed at the end of the piston rod 2 in the suction tube 1. The surface of the piston head is covered with a rubber layer. The rubber layer fits tightly against the inner wall of the suction tube 1, so that the piston head has better sealing performance during suction.

[0036] In some implementations of this embodiment, combined with Figure 1 and Figure 2 As shown, symmetrical through holes 303 are provided at the top and bottom of the fixed tube 3, and a clamping block 301 is installed inside each through hole 303. A horizontally fixed connecting shaft 302 is installed on the inner wall of the through hole 303, and a connecting hole 3011 is provided at the center left of the clamping block 301. The connecting shaft 302 passes through the connecting hole 3011, and then the clamping block 301 can rotate around the connecting shaft 302, so that the fixed tube 3 and the clamping block 301 are hinged.

[0037] Further, combined with Figure 2 and Figure 3 As shown, Figure 3 The block 301 in Figure 2 As shown in the block 301 on the upper middle side, the left bottom and the right bottom of the block 301 are both provided with inclined surfaces 3012. The fixed cone sleeve 4 and the loose cone sleeve 5 are both conical sleeves sleeved on the piston rod 2, and the conical surfaces of the fixed cone sleeve 4 and the loose cone sleeve 5 are both facing the middle block 301. The fixed cone sleeve 4 is located on the side of the block 301 away from the piston rod 2, that is, the fixed cone sleeve 4 is located on the right side of the block 301; the loose cone sleeve 5 is located on the side of the block 301 close to the piston rod 2, that is, the fixed and loose cone sleeves 5 are located on the left side of the block 301.

[0038] Combination Figure 2 and Figure 3 As shown, the connecting hole 3011 is located to the left of the center, and the distance from the connecting hole 3011 to the left end is smaller than the distance from the connecting hole 3011 to the right end, so that the block 301 can protrude further outward after rotation and can be tightly abutted against the outer tube.

[0039] In some implementations of this embodiment, Figure 2 As shown, in order to restrict the fixing cone sleeve 4 and the loosening cone sleeve 5 inside the fixing pipe 3, a plug 304 is installed at the right end of the fixing pipe 3 to block the right end of the fixing cone sleeve 4, and a blocking surface 101 is provided at the right end of the suction pipe 1 to block the left end of the loosening cone sleeve 5. A through hole 3041 is provided at the center of the plug 304, and the piston rod 2 can pass through the through hole 3041. The right end of the suction pipe 1 is threadedly connected to the left end of the fixing pipe 3, and the blocking surface 101 of the suction pipe 1 extending into the fixing pipe 3 blocks the left end of the loosening cone sleeve 5.

[0040] In some implementations of the present embodiment, in order to allow the piston rod 2 to move freely and to allow the blocking block 301 to be fixed or loosened accordingly when the piston rod 2 stays at the corresponding position, the piston rod 2 is provided with abutment surface 1 201, abutment surface 202 and abutment surface 3 203. The abutment surface 1 201, the abutment surface 202 and the abutment surface 3 203 are all step surfaces, so the piston rod 2 is composed of multiple sections with different diameters.

[0041] Further, combined with Figure 2 As shown, with the abutment surface 3 203 as the boundary, the left side of the abutment surface 3 203 is the left rod section with a larger diameter, and the right side of the abutment surface 3 203 is the right rod section with a smaller diameter. The diameter of the right rod section is the same as the inner diameter of the release cone sleeve 5. When the piston rod 2 moves to the right, the abutment surface 3 203 presses against the left end face of the release cone sleeve 5, thereby pushing the release cone sleeve 5 to the right. Figure 2 As shown, when the cone sleeve 5 is loosened to push the block 301 to completely retract into the through hole 1 303, the piston head is located at the rightmost side of the suction tube 1, and the piston head completes the suction action.

[0042] Furthermore, combined Figure 2 As shown, a middle rod end with a smaller diameter is inserted into the right rod section on the right side of the abutment surface three 203 of the piston rod 2, and the left rod section, the middle rod end, and the right rod section are concentrically aligned. The left end of the middle rod end and the right rod section on the left form the abutment surface two 202, and the right end of the middle rod end and the right rod section on the right form the abutment surface one 201. The fixed cone sleeve 4 is sleeved on the middle rod end, and the diameter of the middle rod end is the same as the diameter of the fixed cone sleeve 4. When the piston rod 2 moves to the right, the abutment surface two 202 abuts against the left end face of the fixed cone sleeve 4, thereby pushing the release cone sleeve 5 to the right, so as to facilitate the retraction of the clamping block 301. When the piston rod 2 moves to the left, the abutment surface one 201 abuts against the right end face of the fixed cone sleeve 4, thereby pushing the release cone sleeve 5 to the left, so as to facilitate the pushing of the clamping block 301 to bulge outward.

[0043] It should be noted that the inner diameter of the loosening cone sleeve 5 is the same as the outer diameter of the abutment surface 1 201 and the abutment surface 2 202 (i.e., the diameter of the right rod section of the piston rod 2). Relying on the friction between the loosening cone sleeve 5 and the piston rod 2, when the piston rod 2 moves to the left, the loosening cone sleeve 5 will also move to the left, thereby preventing the loosening cone sleeve 5 from affecting the outward convex rotation of the blocking block 301.

[0044] In some implementations of this embodiment, combined with Figure 1 and Figure 4 As shown, a bottom valve 6 is installed at the bottom end of the suction pipe 1. The bottom valve 6 is a one-way valve to prevent the sand and rock powder sucked inside the suction pipe 1 from leaking. The bottom valve 6 is tubular, and the bottom valve 6 is threadedly connected to the bottom end of the suction pipe 1. An inner cavity 601 is opened inside the bottom valve 6, and a steel ball 602 is placed in the inner cavity 601. The working end of the bottom valve 6 is a through hole 603 with a diameter smaller than that of the steel ball 602. A blocking rod 604 is fixedly installed on the right side of the steel ball 602, and the blocking rod 604 is fixedly connected to the inner wall of the inner cavity 601.

[0045] When suction is required, the piston head moves, negative pressure is formed in the suction tube 1, the steel ball 602 is lifted, the through hole 3 603 is opened, and the sand and rock powder are sucked into the suction tube 1. When the suction is completed, the steel ball 602 automatically falls down to block the through hole 3 603 to prevent the sand and rock powder inside from leaking.

[0046] Combination Figure 1 As shown, the end of the piston rod 2 away from the suction pipe 1 is provided with a steel cable connection hole for connection with the steel cable. After the well-sweeping suction tool completes suction, the steel cable is pulled out of the borehole to retract the block 301 and take out the well-sweeping suction tool.

[0047] Example 2

[0048] contrast Figure 2 and Figure 5 As shown, the main structure of the well sweeping and suction tool in this embodiment 2 is basically the same as that of the well sweeping and suction tool in embodiment 1. The main difference is that in this embodiment, no abutment surface 201 is provided to push the fixed cone sleeve 4 to move leftward. Instead, a spring 7 is used to push the fixed cone sleeve 4 to move leftward.

[0049] Please refer to Figure 5 As shown, the spring 7 is sleeved on the piston rod 2, the right end of the spring 7 is against the inner wall of the plug 304, and the left end of the spring 7 is against the right side wall of the fixed cone sleeve 4. The spring 7 is in a compressed state, and the spring 7 can push the fixed cone sleeve 4 to the left. When the steel cable is pulled out of the borehole, the piston rod 2 moves to the right, and the second abutment surface 202 pushes the fixed cone sleeve 4 to move to the right, and the spring 7 is compressed.

[0050] The working principle of the well sweeping and suction tool of the utility model is as follows:

[0051] The well-sweeping suction tool comprises a suction pipe 1, a piston rod 2 and a fixed pipe 3. After the piston rod 2 is inserted into the suction pipe 1, the air in the suction pipe 1 is exhausted. When the piston rod 2 is pulled out from the suction pipe 1, the gravel and rock powder in the borehole are sucked into the inside of the suction pipe 1, which plays the role of cleaning the drilling and drilling, avoiding high pump pressure, reducing accidents in the hole, and avoiding collapse in the hole and the well. The fixed pipe 3 is installed at the top of the suction pipe 1 to limit the fixation in the outer pipe. When the piston rod 2 needs to exhaust air and move downward, the fixed cone sleeve 4 on the piston rod 2 gradually approaches the clamping block 301, and the loosened cone sleeve 5 gradually moves away from the clamping block, and the fixed cone sleeve 4 and the inner wall of the clamping block 301 are abutted, and the clamping block 301 is convexed by the cone surface of the fixed cone sleeve 4. The convex clamping block 301 is pressed against the inner wall of the outer pipe, and then the well-sweeping suction tool is fixed inside the outer pipe. At this time, the well-sweeping suction tool can follow the outer pipe to descend to the bottom of the hole and the bottom of the well. When the piston rod 2 is needed to suck gravel and rock powder from the bottom of the hole, the loosening cone sleeve 5 on the piston rod 2 gradually approaches the clamping block 301, and the fixed cone sleeve 4 gradually moves away from the clamping block, so that the loosening cone sleeve 5 abuts against the inner wall of the clamping block 301, and the conical surface of the fixed cone sleeve 4 makes the convex part of the clamping block 301 retract inward, and the clamping block 301 no longer abuts against the inner wall of the outer tube.

[0052] In summary, the utility model provides a well sweeping suction tool, which includes a suction pipe 1 and a piston rod 2 inserted into the suction pipe 1, a piston head connected to the piston rod 2 is arranged in the suction pipe 1, the piston rod 2 is sleeved with a fixed pipe 3 connected to the end of the suction pipe 1, the fixed pipe 3 is hinged with a clamping block 301, the piston rod 2 is sleeved with a fixed cone sleeve 4 that pushes the clamping block 301 to bulge outward before suction and a loosening cone sleeve 5 that pushes the clamping block 301 to retract after suction, the fixed cone sleeve 4 is located on the side of the clamping block 301 away from the piston rod 2, and the loosening cone sleeve 5 is located on the side of the clamping block 301 close to the piston rod 2. The fixed pipe 3 is provided with a through hole 1 303, the through hole 1 303 is provided with a connecting shaft 302, the clamping block 301 is provided with a connecting hole 3011 for the connecting shaft 302 to pass through, and the distance from the connecting hole 3011 to the end thereof close to the suction pipe 1 is less than the distance from the connecting hole 3011 to the end thereof away from the suction pipe 1. The block 301 is provided with an inclined surface 3012 adapted to the conical surface of the fixed cone sleeve 4 and the loose cone sleeve 5. The end of the fixed tube 3 away from the suction tube 1 is provided with a plug 304 for blocking the fixed cone sleeve 4, and the plug 304 is provided with a through hole 2 3041 for the piston rod 2 to pass through. The piston rod 2 is provided with a resistance surface 1 201 for pushing the right side of the fixed cone sleeve 4 and a resistance surface 202 for pushing the left side of the fixed cone sleeve 4. The piston rod 2 is provided with a resistance surface 3 203 for pushing the left side of the loose cone sleeve 5. The inner diameter of the loose cone sleeve 5 is not less than the outer diameter of the resistance surface 1 201 and the resistance surface 2 202. The suction tube 1 is provided with a resistance surface 4 101 for blocking the left side of the loose cone sleeve 5. The port of the suction pipe 1 is provided with a bottom valve 6, the bottom valve 6 is provided with an inner cavity 601, a steel ball 602 is provided in the inner cavity 601, the bottom valve 6 has a through hole 3 603 smaller than the size of the steel ball 602, and a blocking rod 604 for blocking the steel ball 602 is also provided in the inner cavity 601. A steel cable connection hole is provided at one end of the piston rod 2 away from the suction pipe 1. Therefore, the well sweeping suction tool of the utility model has the beneficial effects of sucking gravel and ensuring the safety of drilling.

[0053] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A well sweeping and suction tool, characterized in that: The invention comprises a suction pipe (1) and a piston rod (2) inserted into the suction pipe (1); a piston head connected to the piston rod (2) is arranged in the suction pipe (1); the piston rod (2) is sleeved with a fixing pipe (3) connected to the end of the suction pipe (1); the fixing pipe (3) is hinged with a clamping block (301); the piston rod (2) is sleeved with a fixing cone sleeve (4) for pushing the clamping block (301) outward before suction and a loosening cone sleeve (5) for pushing the clamping block (301) back after suction; the fixing cone sleeve (4) is located on a side of the clamping block (301) away from the suction pipe (1), and the loosening cone sleeve (5) is located on a side of the clamping block (301) close to the suction pipe (1).

2. The well sweeping and suction tool according to claim 1, characterized in that: The fixing tube (3) is provided with a through hole (303), the through hole (303) is provided with a connecting shaft (302), the clamping block (301) is provided with a connecting hole (3011) for the connecting shaft (302) to pass through, and the distance from the connecting hole (3011) to its end close to the suction tube (1) is smaller than the distance from the connecting hole (3011) to its end away from the suction tube (1).

3. The well sweeping and suction tool according to any one of claims 1 to 2, characterized in that: The clamping block (301) is provided with an inclined surface (3012) adapted to the conical surfaces of the fixing cone sleeve (4) and the loosening cone sleeve (5).

4. The well sweeping and suction tool according to claim 1, characterized in that: The piston rod (2) is provided with a first abutment surface (201) for pushing the right side of the fixed cone sleeve (4) and a second abutment surface (202) for pushing the left side of the fixed cone sleeve (4).

5. The well sweeping and suction tool according to claim 4, characterized in that: The piston rod (2) is provided with a third abutment surface (203) for pushing the left side of the loosening cone sleeve (5).

6. The well sweeping and suction tool according to claim 5, characterized in that: The inner diameter of the loosening cone sleeve (5) is not less than the outer diameters of the first abutment surface (201) and the second abutment surface (202).

7. The well sweeping and suction tool according to claim 1, characterized in that: A plug (304) for blocking the fixed cone sleeve (4) is provided at one end of the fixed tube (3) away from the suction tube (1), and the plug (304) is provided with a second through hole (3041) for the piston rod (2) to pass through.

8. The well sweeping and suction tool according to claim 1, characterized in that: The suction pipe (1) is provided with a blocking surface 4 (101) for blocking the left side of the loosening cone sleeve (5).

9. The well sweeping and suction tool according to claim 1, characterized in that: The port of the suction pipe (1) is provided with a bottom valve (6), the bottom valve (6) is provided with an inner cavity (601), a steel ball (602) is provided in the inner cavity (601), the bottom valve (6) has a through hole three (603) smaller than the size of the steel ball (602), and a blocking rod (604) is also provided in the inner cavity (601) for blocking the steel ball (602).

10. The well sweeping and suction tool according to claim 1, characterized in that: A steel cable connection hole is provided at one end of the piston rod (2) away from the suction pipe (1).

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