Wall screw sleeve breaking device

Abstract

The application discloses a wall-penetrating screw sleeve breaking device and relates to the technical field of building construction. The wall-penetrating screw sleeve breaking device comprises a guide cylinder for extending into the sleeve, a cutting assembly is arranged on the outer wall of the guide cylinder, the cutting assembly comprises an annular cutter group and a strip-shaped cutter group connected to the outer wall of the guide cylinder, an adjusting assembly is arranged in the guide cylinder, and the adjusting assembly controls the annular cutter group and the strip-shaped cutter group to alternately work to cut the sleeve horizontally and vertically in a working state. The horizontal cutting realizes the truncation of the sleeve, and the vertical cutting can cut the sleeve in the axial direction of the cylinder, so that the cut sleeve can be pulled out of the mounting hole, the duct hole can be prevented from being damaged on the basis of ensuring the breaking efficiency, and the subsequent construction quality is improved and the water seepage risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a device for breaking through wall bolt sleeves. Background Technology

[0002] In the construction industry, wooden formwork is still widely used. It is typically reinforced using through-wall bolts during the installation of shear wall formwork and large-section beam formwork. These bolts are fitted with DN16 PVC conduits with a wall thickness of approximately 0.8mm. After demolding, the bolts can be easily disassembled and reused repeatedly. However, these bolt conduits are often left in the concrete structure. Conduits left in the exterior walls of buildings require partial removal, specifically about 50mm from the outer end of the exterior wall into the interior. Only by completely removing this section of the conduit can the subsequent sealing with waterproof mortar reliably connect to the main structure, achieving better waterproofing and preventing future leaks in the exterior walls. In actual construction, since the casing is a whole pipe and the space is small, it is very difficult to break it completely. The traditional construction method is to use a self-made steel bar hook to tam it down, which can only break about 20mm from the end and is inefficient. Another method is to use an electric drill to force it down, but the standard drill bit size is difficult to match with the casing hole. In practice, the pipe hole is often enlarged, which is more destructive and has the disadvantage of affecting the structure and increasing the risk of water seepage. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is: how to improve the problem of inconvenience in breaking through the wall bolt sleeve and the resulting enlargement of the sleeve hole and greater damage in the prior art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] This invention proposes a device for breaking through-wall threaded sleeves, including a guide cylinder for inserting into the sleeve. The outer wall of the guide cylinder is provided with a cutting assembly, which includes an annular blade group and a strip blade group connected to the outer wall of the guide cylinder. An adjustment assembly is provided inside the guide cylinder. In operation, the adjustment assembly controls the annular blade group and the strip blade group to work alternately to cut the sleeve horizontally and vertically. The horizontal cutting cuts the sleeve, while the vertical cutting cuts the cylindrical sleeve along its axial direction, thereby allowing the cut sleeve to be pulled out of the installation hole. This device ensures breaking efficiency without damaging the guide hole, reducing the risk of water leakage.

[0006] Furthermore, the aforementioned annular cutter assembly includes multiple fan-shaped blades movably connected to the aforementioned guide cylinder. These multiple fan-shaped blades are arranged circumferentially along the aforementioned guide cylinder and are located in the same plane, perpendicular to the axis of the aforementioned guide cylinder. The aforementioned strip-shaped cutter assembly includes multiple strip-shaped blades spaced apart circumferentially along the aforementioned guide cylinder. These strip-shaped blades are movably connected to the aforementioned guide cylinder and are parallel to the axis of the aforementioned guide cylinder. The aforementioned adjusting component is used to enable the fan-shaped blades and the strip-shaped blades to extend and retract, specifically defining the structure of the annular cutter assembly and the strip-shaped cutter assembly. The arrangement of the multiple fan-shaped blades allows the adjusting component to simultaneously control the multiple fan-shaped blades to extend and retract along the outer side of the guide cylinder to achieve cutting. The multiple strip-shaped blades can cut the sleeve into multiple arc-shaped strips along the sleeve's axial direction, facilitating the extraction of the cut and strip-shaped sleeve from the guide hole.

[0007] Furthermore, the guide cylinder is connected to multiple first elastic elements and multiple second elastic elements. Each of the first elastic elements corresponds to a multiple fan-shaped blade, with the outer side of the first elastic element furthest from the guide cylinder connected to the fan-shaped blade. Similarly, each of the second elastic elements corresponds to a multiple strip-shaped blade, with the outer side of the second elastic element furthest from the guide cylinder connected to the strip-shaped blade. The adjustment assembly includes an abutment movably disposed on the guide cylinder, connected to an adjustment element. During operation, the adjustment element drives the abutment to move axially along the guide cylinder. The abutment end of the abutment contacts the inner side of either the first or second elastic element, causing either the first or second elastic element to deform outwards from the guide cylinder. By providing the first and second elastic elements, the driving stability of the fan-shaped and strip-shaped blades can be improved. The adjustment element drives the abutment to abut against the first and second elastic elements respectively, causing the fan-shaped and strip-shaped blades to move, achieving a cutting effect.

[0008] Furthermore, the aforementioned abutment includes a shaped rod movably disposed inside the aforementioned guide cylinder. The outer diameter of the middle part of the shaped rod is larger than the outer diameters at both ends. The aforementioned first elastic element and the aforementioned second elastic element are respectively located on both sides of the part with the largest outer diameter of the shaped rod, which specifically defines the structure of the abutment. When the shaped rod moves circumferentially inside the guide cylinder, the two tapered abutment surfaces abut against the first elastic element and the second elastic element respectively, causing the fan-shaped blade and the strip-shaped blade to undergo corresponding displacement, thereby realizing the alternating cutting action of the fan-shaped blade and the strip-shaped blade.

[0009] Furthermore, the guide cylinder includes a first cylinder and a second cylinder arranged opposite to each other. The inner and outer diameters of the first cylinder and the second cylinder are the same. A connecting rib connects the outer walls of the first cylinder and the second cylinder. The fan-shaped blade and the first elastic element are disposed in the first cylinder, and the strip-shaped blade and the second elastic element are disposed in the second cylinder. The largest part of the outer diameter of the irregular rod is located in the gap between the first cylinder and the second cylinder. This specifically defines the structure of the guide cylinder, such that the first elastic element and the second elastic element are respectively located in the first cylinder and the second cylinder, and the two sides of the irregular rod abutting surface correspond to the first cylinder and the second cylinder, thereby improving the stability of the alternating operation of the fan-shaped blade and the strip-shaped blade.

[0010] Furthermore, the first elastic element includes a first elastic sheet integrally connected to one end of the first cylinder near the second cylinder, and a plurality of the first elastic sheets are arranged circumferentially along the first cylinder. The fan-shaped blade is connected to the outer wall of the first elastic sheet near the second cylinder. The second elastic element includes a second elastic sheet integrally connected to one end of the second cylinder near the first cylinder, and a plurality of the second elastic sheets are arranged circumferentially along the second cylinder. The strip-shaped blade is connected to the outer wall of the second elastic sheet near the first cylinder. The arrangement of the elastic sheets is simple in structure and easy to process.

[0011] Furthermore, the aforementioned adjusting component includes a drive rod movably disposed on the aforementioned guide cylinder. The drive rod has a connecting end and a driving end. The connecting end is connected to the aforementioned irregular rod, and the driving end is used to apply a force to drive the aforementioned irregular rod to move. The drive rod drives the irregular rod to move stably, ensuring stable contact with the first elastic element and the second elastic element.

[0012] Furthermore, the aforementioned drive rod is threadedly connected to the aforementioned guide cylinder, and the aforementioned drive end is connected to a rotating handle. In the working state, rotating the aforementioned rotating handle causes the drive rod to move within the guide cylinder along the length of the guide cylinder, facilitating operation by the operator.

[0013] The beneficial effects of this invention are: by adjusting the components to control the annular cutter group and the strip cutter group, the through-wall screw sleeve is cut laterally and cut along the axial direction of the guide cylinder, so that the cut sleeve can be easily pulled out from the guide hole, improving the efficiency of removing the sleeve, and the process will not damage the guide hole, reducing the risk of water seepage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is the main view of the present invention;

[0016] Figure 3 This is a top sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the working state of the present invention;

[0018] Figure 5 This is a schematic diagram of the second working state of the present invention;

[0019] Figure 6 This is a schematic diagram of the third working state of the present invention;

[0020] The markings in the diagram are as follows: 1-fan-shaped blade, 2-strip-shaped blade, 3-irregular rod, 4-drive rod, 5-guide cylinder, 6-connecting rib, 7-first elastic plate, 8-second elastic plate, 9-installation tube, 10-handle, 100-sleeve, 501-first cylinder, 502-second cylinder. Detailed Implementation

[0021] The invention will be further described below with reference to the accompanying drawings.

[0022] according to Figures 1-3 As shown, the present invention proposes a device for breaking through a through-wall screw sleeve 100, including a guide cylinder 5 for extending into the sleeve 100. A cutting assembly is provided on the outer wall of the guide cylinder 5. The cutting assembly includes an annular blade group and a strip blade group connected to the outer wall of the guide cylinder 5. An adjustment assembly is provided inside the guide cylinder 5. In the working state, the adjustment assembly controls the annular blade group and the strip blade group to work alternately to cut the sleeve 100 horizontally and vertically. Specifically, the annular blade group can achieve an annular cutting effect on the through-wall screw sleeve 100 through the action of the adjustment assembly, and the strip blade group can achieve axial cutting of the through-wall screw sleeve 100. By rotating the guide cylinder 5 in the sleeve 100, after the sleeve 100 is cut off, the multiple cuts of the strip blade group make the sleeve 100 axially divided into multiple arc-shaped strips, which are convenient to be removed from the guide hole.

[0023] Specifically, in some embodiments, the adjustment component can be a manually driven component or an electrically driven component. Specifically, the adjustment component has a drive structure, which can be an external drive force connecting the annular blade group and the strip blade group. By controlling the changes in the drive structure, the annular blade group and the strip blade group move sequentially. The annular blade group cuts the sleeve 100 laterally, and the strip blade group cuts the sleeve 100 along the axial direction of the sleeve 100. Specifically, the drive structure can be a movable structure that abuts against the blade group or a connecting rod structure that connects the blade group. Specifically, the blade of the annular blade group is set perpendicular to the axis of the sleeve 100, and the blade of the strip blade group is parallel to the axis of the sleeve 100. The drive structure can act on the annular blade group to make the annular blade group and the strip blade group move outward alternately, so that the blades pierce the sleeve 100 to achieve cutting, cutting the sleeve 100 into strips that are easy to remove.

[0024] Specifically, the annular cutter assembly can be multiple fan-shaped blades 1 movably connected to the guide cylinder 5. The multiple fan-shaped blades 1 are arranged circumferentially along the guide cylinder 5, and are located on the same plane and perpendicular to the axis of the guide cylinder 5. That is to say, the adjustment component can drive the multiple fan-shaped blades 1 to move outward simultaneously or continuously, so that the cutting edge of the blade pierces the sleeve 100 outward. The multiple fan-shaped blades 1 can form an annular shape or a plate annular shape. By rotating the angle of the guide cylinder 5 in the sleeve 100 during operation, the sleeve 100 can be completely cut at a preset length position, so that the sleeve 100 located in the guide hole is cut into two parts. The arrangement of multiple fan-shaped blades 1 can ensure that the annular cutter assembly can be easily controlled by the drive structure to achieve movement perpendicular to the axis of the sleeve 100, and the control structure is stable and the processing is convenient.

[0025] Specifically, the strip-shaped blade assembly can be multiple strip-shaped blades 2 spaced apart circumferentially along the guide cylinder 5. These strip-shaped blades 2 are movably connected to the guide cylinder 5 and are parallel to the axis of the guide cylinder 5. In other words, the arrangement of multiple strip-shaped blades 2 facilitates a single cut along the axis of the sleeve 100. Before the guide cylinder 5 is inserted into the sleeve 100, the adjusting component controls the retraction of the fan-shaped blades 1 and strip-shaped blades 2, allowing the entire device to fully extend into the sleeve 100 without obstruction. Upon reaching the cutting position, the adjusting component controls the fan-shaped blades 1 and strip-shaped blades 2 to move outward, piercing the inner wall of the sleeve 100 and achieving a stable cut.

[0026] Furthermore, to facilitate the control of the extension and retraction of the annular blade and the strip blade 2, the guide cylinder 5 is connected to multiple first elastic elements and multiple second elastic elements. Each of the first elastic elements corresponds to a single fan-shaped blade 1, with the outer side of the first elastic element furthest from the guide cylinder 5 connected to the fan-shaped blade 1. Similarly, each of the second elastic elements corresponds to a single strip blade 2, with the outer side of the second elastic element furthest from the guide cylinder 5 connected to the strip blade 2. In other words, the adjustment assembly controls the extension and retraction of the annular blade and the strip blade 2 by applying force to the multiple first elastic elements and multiple second elastic elements, causing the first and second elastic elements to drive the annular blade and the strip blade 2 to move outwards, respectively. When the adjustment assembly loses its control... After the first and second elastic elements exert their forces, the ring blade and strip blade 2 return to their original positions due to the elasticity of the elastic elements, reducing operational difficulty and improving work efficiency. Specifically, to ensure the stability of the adjustment process, the adjustment assembly includes an abutment movably disposed in the guide cylinder 5. The abutment is connected to the adjustment element. During operation, the adjustment element drives the abutment to move axially along the guide cylinder 5. The abutment end of the abutment contacts the inner side of the first elastic element or the inner side of the second elastic element, causing the first elastic element or the second elastic element to deform outward from the guide cylinder 5. Through this abutment force, the fan blade 1 and strip blade 2 directly pierce the inner wall of the sleeve 100, ensuring the cutting effect.

[0027] In some embodiments, preferably, the abutting member includes a shaped rod 3 movably disposed inside the guide cylinder 5. The outer diameter of the middle part of the shaped rod 3 is larger than the outer diameters at both ends. The first elastic member and the second elastic member are respectively located on both sides of the part with the largest outer diameter of the shaped rod 3. That is, the shaped rod 3 has a structure with a large size in the middle and a small size at both ends. The fan-shaped blade 1 and the strip-shaped blade 2 are located at the two ends of the shaped rod 3. By moving the position of the shaped rod 3 inside the guide cylinder 5, the fan-shaped blade 1 and the strip-shaped blade 2 can be adjusted to move alternately outward. In specific operation, when the shaped rod 3 is driven to move towards the first elastic member, the outer wall of the shaped rod 3 gradually increases in size along the direction of the first elastic member, so that the outer wall of the shaped rod 3 gradually abuts against the first elastic member. The fan-shaped blade 1 is displaced outward to achieve transverse cutting. At this time, the outer diameter of the shaped rod 3 along the direction of the second elastic element decreases, gradually losing contact with the second elastic element or not contacting the second elastic element at all, so that the strip blade 2 is in a contracted state. When the transverse cutting process is completed, the shaped rod 3 is driven to move towards the second elastic element, the second elastic element is abutted and bounces outward, and drives the strip blade 2 to cut the sleeve 100 along the axis of the sleeve 100, thereby achieving the effect of alternating cutting. According to the distance between the annular plate and the strip blade 2 on the guide cylinder 5, the position of the guide cylinder 5 in the guide hole can be adjusted during the specific alternating cutting to ensure that the sleeve 100 completely cut by the fan-shaped blade 1 can be completely cut into strips by the strip blade 2.

[0028] To facilitate the processing of the guide cylinder 5 and the processing and installation of the blade, the guide cylinder 5 includes a first cylinder 501 and a second cylinder 502 arranged opposite to each other. The inner and outer diameters of the first cylinder 501 and the second cylinder 502 are the same. A connecting rib 6 connects the outer walls of the first cylinder 501 and the second cylinder 502. The fan-shaped blade 1 and the first elastic element are disposed in the first cylinder 501, the strip-shaped blade 2 and the second elastic element are disposed in the second cylinder 502, and the part with the largest outer diameter of the irregular rod 3 is located in the gap between the first cylinder 501 and the second cylinder 502.

[0029] Furthermore, regarding the structure of the first and second elastic elements, the first elastic element includes a first elastic piece 7 integrally connected to one end of the first cylinder 501 near the second cylinder 502, with a plurality of the first elastic pieces 7 arranged circumferentially along the first cylinder 501, and the fan-shaped blade 1 connected to the outer wall of one end of the first elastic piece 7 near the second cylinder 502; the second elastic element includes a second elastic piece 8 integrally connected to one end of the second cylinder 502 near the first cylinder 501, with a plurality of the second elastic pieces 8 arranged circumferentially along the second cylinder 501. The cylinder 502 is circumferentially arranged, and the strip blade 2 is connected to the outer wall of the second elastic plate 8 near the end of the first cylinder 501. Specifically, the strip blade 2 is defined as a spike-like shape that is set outward from the sleeve 100. In actual operation, the irregular rod 3 abuts against the second elastic plate 8 and bounces outward. The bounced second elastic plate 8 carries the strip blade 2 outward and pierces the inner wall of the sleeve 100. Then, by applying an outward force, the entire device is pulled outward, so that the sharp blade cuts the inner wall of the sleeve 100 along the axial direction of the sleeve 100, thereby achieving the cutting effect.

[0030] Furthermore, the first elastic sheet 7 and the second elastic sheet 8 are integrally connected to the first cylinder 501 and the second cylinder 502, respectively, which saves processing steps, simplifies the structure, and reduces the risk of parts being damaged or falling off during long-term use. Moreover, the fan-shaped blade 1 and the strip-shaped blade 2 are fixedly connected to the outer walls of the first elastic sheet 7 and the second elastic sheet 8, respectively. The specific fixing method is integral connection or welding, which ensures the stability of the force.

[0031] Furthermore, both the first cylinder 501 and the second cylinder 502 are made of alloy materials, and the first elastic sheet 7 and the second elastic sheet 8 are made of elastic metal materials with good resilience, such as beryllium copper alloy, which ensures the reset of the control blade through good elastic properties.

[0032] Specifically, multiple connecting ribs 6 are evenly spaced, and multiple first elastic plates 7 and multiple second elastic plates 8 are evenly distributed in the intervals formed by the multiple connecting ribs 6. There are gaps between the connecting ribs 6 and the first elastic plates 7 or the second elastic plates 8 to prevent friction and obstruction during operation and improve working stability. The connection points between the multiple fan-shaped blades 1, which are divided by the connecting ribs 6, can be cut again by rotating the first cylinder 501, so that the sleeve 100 is completely cut off.

[0033] Specifically, the adjusting component includes a drive rod 4 movably disposed in the guide cylinder 5. The drive rod 4 has a connecting end and a driving end. The connecting end is connected to the irregular rod 3, and the driving end is used to apply a force to drive the irregular rod 3 to move. The connecting end connects to the abutment, and applies a force to the drive rod 4 so that the abutment rod is stably displaced within the guide cylinder 5. Specifically, the first cylinder 501 is positioned facing outwards from the sleeve 100, and the end of the second cylinder 502 away from the connecting rib 6 is connected to the mounting tube 9. The drive rod 4 is threadedly connected to the guide cylinder 5, and the drive end is connected to a rotating handle 10. In the working state, rotating the rotating handle 10 causes the drive rod 4 to be threaded in or out of the guide cylinder 5, thereby causing the drive rod 4 to drive the abutment to move along the length of the guide cylinder 5. Specifically, the first cylinder 501 is positioned facing outwards from the sleeve 100, and the end of the second cylinder 502 away from the connecting rib 6 is connected to the mounting tube 9. The drive rod 4 is threadedly connected to the mounting tube 9. A moving space is formed between the first cylinder 501 and the second cylinder 502 for the reciprocating movement of the irregular rod 3, ensuring drive stability.

[0034] During operation, first clean the through-wall bolt holes generated during the template installation and reinforcement process. Cut off the sleeve 100 outside the concrete structure. Check the bolt holes and sleeve 100 for deformation; if deformation is found, address it promptly. According to the required length of sleeve 100 to be removed, place the device horizontally inside the bolt hole and adjust the placement depth so that the fan-shaped blade 1 is in a suitable cutting position. At this point, the entire device should be in the following state: Figure 4 As shown; rotating the handle 10 in the forward direction causes the drive rod 4 to rotate, driving the shaped rod 3 to move towards the first cylinder 501, so that the contact surface of the shaped rod 3 abuts against the first elastic plate 7, causing the first elastic plate 7 to elastically deform outward, and driving the fan-shaped blade 1 to pierce the inner wall of the sleeve 100 outward. After the cut is completed, the entire device is rotated to perform the cutting action again, so as to completely cut the sleeve 100 laterally. At this time, the state of the device is as follows. Figure 5 As shown; next, move the entire device within the sleeve 100 so that the blade of the strip-shaped blade 2 is positioned beyond the cut-off port. Then, rotate the handle 10 in the opposite direction, causing the drive rod 4 to move the second elastic plate 8 of the shaped rod 3 in the same direction. This causes the contact surface of the shaped rod 3 to abut against the second elastic plate 8, resulting in an outward elastic deformation of the second elastic plate 8. This causes the blade of the strip-shaped blade 2 to pierce the inner wall of the sleeve 100. The state at this point is as follows. Figure 6 As shown, by applying an outward force to the handle 10, the entire device is pulled outward from the sleeve 100, so that the multiple spaced strip blades 2 completely cut the cut portion of the sleeve 100 axially, cutting the sleeve 100 into multiple separate arc-shaped strips. Finally, a tool is used to pull the arc-shaped strips outward.

[0035] In summary, this invention proposes a device for breaking through a through-wall threaded sleeve 100, including a guide cylinder 5 for inserting into the sleeve 100. A cutting assembly is provided on the outer wall of the guide cylinder 5, comprising an annular blade assembly and a strip blade assembly connected to the outer wall of the guide cylinder 5. An adjustment assembly is provided inside the guide cylinder 5. The annular blade assembly, through the adjustment assembly, can achieve an annular cutting effect on the through-wall threaded sleeve 100, while the strip blade assembly can achieve axial cutting of the through-wall threaded sleeve 100. Furthermore, by rotating the guide cylinder 5 within the sleeve 100, after the sleeve 100 is cut, multiple cuts by the strip blade assembly axially divide the sleeve 100 into multiple arc-shaped strips, facilitating removal from the guide hole and improving the efficiency of removing the sleeve 100. Moreover, the process does not damage the guide hole, reducing the risk of water leakage. Moreover, the entire device can cut and segment PVC sleeves simply by adjusting the position of the two sets of blades inside by turning the handle, making operation simple. The specialized tools are highly targeted, reliable, and have low maintenance costs. No external power unit is required, making it convenient and safe to use. Once the operation method is mastered, workers can operate efficiently, completing tasks in one go, saving labor costs and improving work efficiency, resulting in significant economic benefits. It effectively cleans sleeves with controllable cleaning depth, achieving uniform standards and better ensuring the quality of subsequent waterproof mortar construction, reducing the risk of leakage. It is well-suited for PVC sleeves in concrete structures such as shear walls, large-section beams, and columns. For thicker sleeves, it can be used multiple times to achieve the purpose of breaking them down. No external power is required, no environmental pollution is generated, and the device can be reused multiple times.

Claims

1. A device for breaking through a through-wall bolt sleeve, comprising a guide cylinder (5) for inserting into the sleeve (100), wherein the outer wall of the guide cylinder (5) is provided with a cutting assembly, characterized in that: The cutting assembly includes an annular blade group and a strip blade group connected to the outer wall of the guide cylinder (5). An adjustment assembly is provided inside the guide cylinder (5). In the working state, the adjustment assembly controls the annular blade group and the strip blade group to perform transverse cutting and axial cutting on the sleeve (100). The annular blade assembly includes multiple fan-shaped blades (1) movably connected to the guide cylinder (5). The multiple fan-shaped blades (1) are arranged circumferentially along the guide cylinder (5) and are in the same plane and perpendicular to the axis of the guide cylinder (5). The strip blade assembly includes multiple strip blades (2) spaced apart circumferentially along the guide cylinder (5). The strip blades (2) are movably connected to the guide cylinder (5) and are parallel to the axis of the guide cylinder (5). The adjustment component is used to enable the fan-shaped blades (1) and the strip blades (2) to extend and retract. The guide cylinder (5) is connected to a plurality of first elastic elements and a plurality of second elastic elements. The plurality of first elastic elements correspond one-to-one with a plurality of fan-shaped blades (1). The outer side of the first elastic element away from the guide cylinder (5) is connected to the fan-shaped blade (1). The plurality of second elastic elements correspond one-to-one with a plurality of strip blades (2). The outer side of the second elastic element away from the guide cylinder (5) is connected to the strip blade (2). The adjustment assembly includes an abutment movably disposed on the guide cylinder (5). The abutment is connected to an adjustment element. During operation, the adjustment element drives the abutment to move axially along the guide cylinder (5). The abutment end of the abutment contacts the inner side of the first elastic element or the inner side of the second elastic element, causing the first elastic element or the second elastic element to deform outward from the guide cylinder (5). The abutting member includes a shaped rod (3) movably disposed inside the guide cylinder (5). The outer diameter of the middle part of the shaped rod (3) is larger than the outer diameters at both ends. The first elastic member and the second elastic member are located on both sides of the part with the largest outer diameter of the shaped rod (3).

2. The device for breaking through-wall bolt sleeves according to claim 1, characterized in that: The guide cylinder (5) includes a first cylinder (501) and a second cylinder (502) arranged opposite to each other. The inner and outer diameters of the first cylinder (501) and the second cylinder (502) are the same. A connecting rib (6) is connected between the outer walls of the first cylinder (501) and the second cylinder (502). The fan-shaped blade (1) and the first elastic element are disposed in the first cylinder (501). The strip-shaped blade (2) and the second elastic element are disposed in the second cylinder (502). The outer diameter of the irregular rod (3) is located in the gap between the first cylinder (501) and the second cylinder (502).

3. The device for breaking through-wall bolt sleeves according to claim 2, characterized in that: The first elastic element includes a first elastic sheet (7) integrally connected to one end of the first cylinder (501) near the second cylinder (502), and a plurality of the first elastic sheets (7) are arranged circumferentially along the first cylinder (501). The fan-shaped blade (1) is connected to the outer wall of one end of the first elastic sheet (7) near the second cylinder (502). The second elastic element includes a second elastic sheet (8) integrally connected to one end of the second cylinder (502) near the first cylinder (501), and a plurality of the second elastic sheets (8) are arranged circumferentially along the second cylinder (502). The strip-shaped blade (2) is connected to the outer wall of one end of the second elastic sheet (8) near the first cylinder (501).

4. The device for breaking through-wall bolt sleeves according to claim 1, characterized in that: The adjusting component includes a drive rod (4) movably disposed on the guide cylinder (5). The drive rod (4) has a connecting end and a driving end. The connecting end is connected to the shaped rod (3), and the driving end is used to apply force to drive the shaped rod (3) to move.

5. The device for breaking through-wall bolt sleeves according to claim 4, characterized in that: The drive rod (4) is threaded to the guide cylinder (5), and the drive end is connected to a rotating handle (10). In the working state, when the rotating handle (10) is rotated, the drive rod (4) moves along the length of the guide cylinder (5) inside the guide cylinder (5).

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