A slag leakage preventing device for an expanded hole
By using a hydraulic device to drive the baffle plate to fit tightly against the slag leakage space, and combined with the baffle block to restrict movement, the problem of slag leakage is solved, and the tunneling efficiency and equipment stability of the full-face tunneling machine are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN POWER EQUIP WORKS
- Filing Date
- 2025-09-27
- Publication Date
- 2026-08-04
AI Technical Summary
When the existing full-face tunnel boring machine is expanding the city gate tunnel, the leakage of slag and rock causes the machine to stop for cleaning, which reduces the tunneling efficiency. Moreover, the existing cleaning device cannot be flexibly adjusted to seal the leakage space.
Design a slag-prevention device for enlarged excavation tunnels. The device uses a hydraulic system to drive the slag-blocking plate to flexibly adjust its position, ensuring a tight fit with the bottom and side walls of the slag-prevention space. The device also uses blocks to restrict the movement of the slag-blocking plate, thus preventing slag leakage.
It effectively seals off leakage spaces, avoids slag and rock accumulation and downtime for cleaning, saves time and manpower, improves tunneling efficiency, and ensures stable equipment operation.
Smart Images
Figure CN224592134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of full-face tunneling machine technology, and in particular to a slag-prevention device for expanding tunnels. Background Technology
[0002] A tunnel boring machine (TBM) is a specialized construction machine that integrates tunnel excavation, muck removal, guidance, and support, and is widely used in tunnel projects such as subways, highways, and hydropower. During construction, when the TBM is widening the tunnel entrance, some sections below the cutterhead and shield are not covered, causing muck to leak and accumulate. When the accumulation reaches a certain level, the machine needs to be stopped to clean up the muck, wasting time and manpower and reducing tunneling efficiency.
[0003] Chinese utility model patent with publication number CN222596068U discloses a slag collection and cleaning device for a TBM cutterhead in an inclined shaft.
[0004] In the above technical solutions, the installation angle and position of the cleaning device are relatively fixed. The shape of the rock wall of the city gate is different from the theoretical value, and it cannot be adjusted according to the actual situation of the rock wall, which will result in slag leakage. Moreover, the above solutions are for cleaning the rock debris accumulation between the back of the cutterhead and the front shield when the TBM is excavating at a large angle of inclination in the inclined shaft, and cannot cover the slag leakage space between the front shield and the enlarged tunnel. Utility Model Content
[0005] To overcome at least one of the defects described in the prior art, this utility model provides a slag leakage prevention device for enlarged excavation tunnels. It can flexibly adjust the position of the slag baffle plate according to the actual situation of the slag leakage space, effectively sealing the leakage space, solving the problem of slag leakage, avoiding downtime for cleaning due to slag accumulation, saving time and manpower, and improving tunneling efficiency.
[0006] The technical solution of this utility model is implemented as follows: A slag leakage prevention device for enlarging excavation openings includes a front shield, a slag-blocking plate, a first hydraulic device, and a second hydraulic device. A slag leakage space is formed between the front shield and the excavation opening. The slag-blocking plate is located within the slag leakage space. The first hydraulic device is movably mounted on the front shield, and its output shaft is drivenly connected to the slag-blocking plate, enabling the slag-blocking plate to reciprocate longitudinally and conform to the bottom wall of the slag leakage space. The second hydraulic device is movably mounted on the front shield, and its output shaft is drivenly connected to the slag-blocking plate, enabling the slag-blocking plate to reciprocate horizontally and conform to the side wall of the slag leakage space.
[0007] Based on the above technical solutions, preferably, it also includes a stop block, which is disposed on the front shield and is used to restrict the slag-blocking plate from moving axially along the front shield.
[0008] Based on the above technical solutions, preferably, the stop block includes a first stop block and a second stop block, wherein one end of the first stop block is fixedly connected to the front shield; one end of the second stop block is fixedly connected to the other end of the first stop block, and one side of the second stop block contacts the slag baffle plate.
[0009] Based on the above technical solutions, preferably, the first stop block and the second stop block are L-shaped.
[0010] Based on the above technical solutions, preferably, a first connecting seat is provided between the first hydraulic device and the front shield, the first connecting seat is fixedly connected to the front shield, and the first hydraulic device is rotatably connected to the first connecting seat; a second connecting seat is provided between the first hydraulic device and the slag-blocking plate, the second connecting seat is fixedly connected to the slag-blocking plate, and the output shaft of the first hydraulic device is rotatably connected to the second connecting seat.
[0011] Based on the above technical solutions, preferably, a third connecting seat is provided between the second hydraulic device and the front shield, the third connecting seat is fixedly connected to the front shield, and the second hydraulic device is rotatably connected to the third connecting seat; a fourth connecting seat is provided between the second hydraulic device and the slag-blocking plate, the fourth connecting seat is fixedly connected to the slag-blocking plate, and the output end of the second hydraulic device is rotatably connected to the fourth connecting seat.
[0012] Based on the above technical solutions, preferably, the first hydraulic device and the second hydraulic device are one or more of a pneumatic cylinder, a hydraulic cylinder, or an oil cylinder.
[0013] Based on the above technical solutions, preferably, the cross-section of the slag baffle plate is a right-angled triangle.
[0014] Based on the above technical solutions, preferably, the surfaces of the baffle plate that contact the bottom and side walls of the slag leakage space are provided with a wear-resistant layer.
[0015] In summary, the anti-slag leakage device for enlarged excavation tunnels provided by this utility model has the following advantages over the prior art: (1) The first hydraulic device drives the slag baffle to move longitudinally and reciprocate to fit against the bottom wall of the slag leakage space, and the second hydraulic device drives the slag baffle to move horizontally and reciprocate to fit against the side wall of the slag leakage space. The position of the slag baffle can be flexibly adjusted according to the actual situation of the slag leakage space, effectively sealing the slag leakage space, solving the problem of slag leakage, avoiding the need to stop the machine for cleaning due to slag accumulation, saving time and manpower, and improving tunneling efficiency. (2) The design of the baffle can limit the axial movement of the baffle plate and prevent the leakage of slag and stone. Moreover, the L-shaped design of the first and second baffles makes the contact between the baffle and the baffle plate more intimate and the limiting effect is better. (3) The first hydraulic device is rotatably connected to the front shield through the first connecting seat and rotatably connected to the slag baffle through the second connecting seat, so that the first hydraulic device can adaptively adjust the angle when driving the slag baffle to move longitudinally, avoiding motion interference caused by rigid connection, ensuring the flexibility and smoothness of the longitudinal movement of the slag baffle, and ensuring that it can closely fit the bottom wall of the slag leakage space. (4) The second hydraulic device is rotatably connected to the front shield through the third connecting seat and rotatably connected to the slag baffle through the fourth connecting seat, so that the second hydraulic device can flexibly adjust the angle when driving the slag baffle to move horizontally, avoid motion interference, ensure the smooth horizontal movement of the slag baffle, and ensure that it can closely fit the side wall of the slag leakage space. (5) Avoid stopping operations for cleaning work and speed up the tunneling speed. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a cross-sectional view of the excavation opening in an embodiment of this utility model; Figure 2 This is a cross-sectional view of the enlarged opening in an embodiment of this utility model; Figure 3 This is a schematic diagram of the enlargement excavation according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the planar structure of an embodiment of the present utility model; Figure 5 This is a top view of an embodiment of the present utility model; Figure 6 This is an overall top view of an embodiment of the present utility model.
[0018] The meanings of the reference numerals in the attached drawings are as follows: 1. Opening; 2. Front shield; 3. Slag baffle; 4. First hydraulic device; 41. First connecting seat; 42. Second connecting seat; 5. Second hydraulic device; 51. Third connecting seat; 52. Fourth connecting seat; 6. Slag leakage space; 7. Block; 71. First block; 72. Second block; 8. Wear-resistant layer; 9. Cutter head. Detailed Implementation
[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0020] See Figures 1-6 This utility model discloses a slag-prevention device for enlarging a tunnel opening 1, which includes a front shield 2, a slag-blocking plate 3, a first hydraulic device 4, and a second hydraulic device 5.
[0021] See Figure 1 As shown in this embodiment, the upper part of the opening 1 before widening is semi-circular and the lower part is rectangular.
[0022] See Figure 4 As shown, in this embodiment, a slag leakage space 6 is formed between the front shield 2 and the tunnel opening 1. When the full-face tunneling machine expands the excavation, a slag leakage space will inevitably be formed because there is an inevitable gap between the front shield 2 structure and the rock wall of the expanded tunnel opening 1.
[0023] See Figure 2 and Figure 3 As shown, in this embodiment, after the interior of the tunnel opening 1 is expanded by the full-face tunneling machine, there is a circular cross-section inside, and two slag leakage spaces 6 are formed between the circular cross-section and the tunnel opening 1.
[0024] See Figure 6 As shown, in this embodiment, the front shield 2 is provided with a cutterhead 9 along its digging direction. The digging operation is achieved by rotating the cutterhead 9. The front shield 2 is provided with a tensioning shield along its digging direction. When the cutterhead 9 cuts the rock layer, it will generate huge propulsion force and torque. The tensioning shield tightens the wall of the opening 1 to prevent the equipment itself from displaced, vibrating or shaking due to the reaction force, thus ensuring the stable operation of the cutterhead 9.
[0025] See Figure 4 As shown, in this embodiment, the baffle plate 3 is located within the slag leakage space 6. Specifically, since there are two slag leakage spaces 6, there are also two baffle plates 3, each corresponding to one slag leakage space 6. Each baffle plate 3 precisely fits the bottom and side walls of its respective slag leakage space 6, reducing slag leakage gaps and improving the overall sealing effect. Furthermore, the two baffle plates 3 can be adjusted independently to adapt to complex working conditions. By setting the baffle plates 3, the slag leakage space 6 can be filled and blocked, allowing the slag and stone from the cutterhead 9 to be transported out by the shovels on the cutterhead 9 as planned.
[0026] See Figure 4As shown, in this embodiment, the first hydraulic device 4 is movably mounted on the front shield 2. The output shaft of the first hydraulic device 4 is driven and connected to the baffle plate 3, enabling the baffle plate 3 to move longitudinally reciprocally and fit against the bottom wall of the slag leakage space 6. Since there are two baffle plates 3, there are also two corresponding first hydraulic devices 4, each corresponding to one of the two slag leakage spaces 6. Each first hydraulic device 4 specifically drives the corresponding baffle plate 3 to move longitudinally reciprocally. The longitudinal position of the baffle plate 3 can be independently adjusted according to the flatness of the bottom wall of each slag leakage space 6, ensuring that each baffle plate 3 can fit tightly against the bottom wall of the corresponding slag leakage space 6, avoiding the problem of insufficient adjustment accuracy.
[0027] See Figure 4 As shown, in this embodiment, the second hydraulic device 5 is movably mounted on the front shield 2. The output shaft of the second hydraulic device 5 is driven and connected to the baffle plate 3, enabling the baffle plate 3 to move horizontally reciprocally and fit against the side wall of the slag leakage space 6. Since there are two baffle plates 3, there are also two corresponding second hydraulic devices 5, each corresponding to one of the two slag leakage spaces 6. Each second hydraulic device 5 specifically drives the corresponding baffle plate 3 to move horizontally reciprocally. The horizontal position of the baffle plate 3 can be independently adjusted according to the flatness of the side wall of each slag leakage space 6, ensuring that each baffle plate 3 can fit tightly against the side wall of the corresponding slag leakage space 6, avoiding the problem of insufficient adjustment accuracy.
[0028] See Figure 4 As shown, in this embodiment, the cross-section of the baffle plate 3 is a right triangle. One right-angled side of the right triangle is attached to the side wall of the opening 1, and the other right-angled side is attached to the bottom wall of the opening 1. The right-angled triangle baffle plate 3 can more easily be attached to the side wall and bottom wall of the opening 1 without any gaps in between.
[0029] See Figure 4 As shown, in this embodiment, the surfaces of the slag baffle 3 that contact the bottom and side walls of the slag leakage space 6 are provided with a wear-resistant layer 8, that is, the wear-resistant layer 8 is provided on the two right-angled surfaces of the slag baffle 3. Specifically, the wear-resistant layer 8 can be made of rubber sheet. Rubber sheet has good wear resistance, which can significantly improve the hardness and wear resistance of the contact surface, reduce the wear of the slag baffle 3 body, reduce the replacement frequency caused by wear, and save maintenance costs.
[0030] See Figure 4 and Figure 5As shown, specifically, a first connecting seat 41 is provided between the first hydraulic device 4 and the front shield 2. The first connecting seat 41 is fixedly connected to the front shield 2. Specifically, the first connecting seat 41 is welded to the front shield 2. Welding ensures that the connection between the first connecting seat 41 and the front shield 2 is firm, avoiding the risk of breakage. This ensures that the connection is not easily loosened or broken under the driving force generated by the operation of the first hydraulic device 4 and the impact force of the slag transmitted by the baffle plate 3, thus ensuring the structural stability and safety of the overall device. The first connecting seat 41 is located on the side of the front shield 2 away from the cutter head 9. The first hydraulic device 4 is rotatably connected to the first connecting seat 41. Specifically, the cylinder end of the first hydraulic device 4 is hinged to the first connecting seat 41, so that when the first hydraulic device 4 drives the baffle plate 3 to move longitudinally reciprocatingly, it can flexibly swing around the hinge point to adapt to the angle change of the baffle plate 3 during longitudinal movement.
[0031] See Figure 4 and Figure 5 As shown, specifically, a second connecting seat 42 is provided between the first hydraulic device 4 and the slag baffle 3. The second connecting seat 42 is fixedly connected to the slag baffle 3. Specifically, the second connecting seat 42 is welded to the slag baffle 3. Welding ensures that the connection between the second connecting seat 42 and the slag baffle 3 is firm, avoiding the risk of breakage. This ensures that the connection is not easily loosened or broken under the driving force generated by the operation of the first hydraulic device 4 and the impact force of the slag transmitted by the slag baffle 3, thus ensuring the structural stability and safety of the overall device. The second connecting seat 42 is located on the inclined surface of the slag baffle 3. The second connecting seat 42 is located on the side of the front shield 2 away from the cutterhead 9. The output end of the first hydraulic device 4 is rotatably connected to the slag baffle 3. Specifically, the output end of the first hydraulic device 4, which is also the telescopic end, is hinged to the slag baffle 3, so that when the first hydraulic device 4 drives the slag baffle 3 to move longitudinally back and forth, it can flexibly swing around the hinge point to adapt to the angle change of the slag baffle 3 during longitudinal movement.
[0032] It should also be noted that, in this embodiment, the second connecting seat 42 and the first hydraulic device 4 are arranged perpendicular to the inclined surface of the slag baffle 3, which facilitates the application of longitudinal force to the slag baffle 3.
[0033] See Figure 4 As shown, in this embodiment, the first hydraulic device 4 is one or more of a pneumatic cylinder, a hydraulic cylinder, or an oil cylinder. Different types of drive devices have their own advantages in terms of output force, response speed, working medium characteristics, and environmental adaptability. Specifically, hydraulic cylinders have large output force and stable operation, making them suitable for heavy-duty working conditions where a strong drive is required to make the slag baffle 3 adhere to the bottom wall; pneumatic cylinders have a rapid response and simple structure, making them suitable for scenarios with high requirements for action speed. Flexible selection or combination of these devices based on the actual geological conditions and slag pressure conditions during tunneling can optimize drive efficiency and reliability.
[0034] See Figure 4 and Figure 5 As shown, specifically, a third connecting seat 51 is provided between the second hydraulic device 5 and the front shield 2. The third connecting seat 51 is fixedly connected to the front shield 2. Specifically, the third connecting seat 51 is welded to the front shield 2. Welding ensures that the connection between the third connecting seat 51 and the front shield 2 is firm, avoiding the risk of breakage. This ensures that the connection is not easily loosened or broken under the driving force generated by the operation of the second hydraulic device 5 and the impact force of the slag transmitted by the baffle plate 3, thus ensuring the structural stability and safety of the overall device. The third connecting seat 51 is located on the side of the front shield 2 away from the cutter head 9. The second hydraulic device 5 is rotatably connected to the third connecting seat 51. Specifically, the cylinder end of the second hydraulic device 5 is hinged to the third connecting seat 51, so that when the second hydraulic device 5 drives the baffle plate 3 to move horizontally back and forth, it can flexibly swing around the hinge point to adapt to the angle change of the baffle plate 3 during horizontal movement.
[0035] See Figure 4 and Figure 5 As shown, specifically, a fourth connecting seat 52 is provided between the second hydraulic device 5 and the slag baffle 3. The fourth connecting seat 52 is fixedly connected to the slag baffle 3. Specifically, the fourth connecting seat 52 is welded to the slag baffle 3. Welding ensures that the connection between the fourth connecting seat 52 and the slag baffle 3 is firm, avoiding the risk of breakage. This ensures that the connection is not easily loosened or broken under the driving force generated by the operation of the second hydraulic device 5 and the impact force of the slag transmitted by the slag baffle 3, thus ensuring the structural stability and safety of the overall device. The fourth connecting seat 52 is located on the inclined surface of the slag baffle 3. The fourth connecting seat 52 is located on the side of the front shield 2 away from the cutterhead 9. The output end of the second hydraulic device 5 is rotatably connected to the slag baffle 3. Specifically, the output end of the second hydraulic device 5, which is also the telescopic end, is hinged to the slag baffle 3, so that when the second hydraulic device 5 drives the slag baffle 3 to move horizontally back and forth, it can flexibly swing around the hinge point to adapt to the angle change of the slag baffle 3 during horizontal movement.
[0036] It should also be noted that in this embodiment, the second hydraulic device 5 is set parallel to the ground, which facilitates the application of horizontal force to the slag baffle 3.
[0037] See Figure 4 As shown, in this embodiment, the second hydraulic device 5 is one or more of a pneumatic cylinder, a hydraulic cylinder, or an oil cylinder. Different types of drive devices have their own advantages in terms of output force, response speed, working medium characteristics, and environmental adaptability. Specifically, hydraulic cylinders have large output force and stable operation, making them suitable for heavy-duty working conditions where a strong drive is required for the baffle plate 3 to adhere to the bottom wall; pneumatic cylinders have a rapid response and simple structure, making them suitable for scenarios with high requirements for action speed. Flexible selection or combination of these devices based on the actual geological conditions and slag pressure conditions during tunneling can optimize drive efficiency and reliability.
[0038] In this embodiment, the height of the first hydraulic device 4 on the front shield 2 is higher than the height of the second hydraulic device 5 on the front shield 2, which facilitates the application of longitudinal force; while the length of the second hydraulic device 5 from the center point of the front shield 2 is less than the length of the first hydraulic device 4 from the center point of the front shield 2, which facilitates the application of horizontal force.
[0039] See Figure 5 As shown, this embodiment also includes a stop block 7, which is disposed on the front shield 2. The stop block 7 is used to restrict the slag-blocking plate 3 from moving axially along the front shield 2. Specifically, the stop block 7 is disposed on the side of the front shield 2 away from the cutter head 9. The stop block 7 and the front shield 2 are welded together, which makes the fixation more secure and prevents cracking. The function of the stop block 7 is to restrict the movement of the slag-blocking plate 3 in the forward direction of the cutter head 9 or to restrict the movement of the slag-blocking plate 3 away from the forward direction of the blade. This design can ensure that the slag does not leak, and the effect is better. Two stop blocks 7 are provided in each slag leakage space 6. The two stop blocks 7 correspond to the first hydraulic device 4 and the second hydraulic device 5 respectively, which makes the restriction effect better.
[0040] See Figure 5 As shown, specifically, the baffle 7 includes a first baffle 71 and a second baffle 72. One end of the first baffle 71 is fixedly connected to the front shield 2 (i.e., welded), and one end of the second baffle 72 is fixedly connected to the other end of the first baffle 71. The first baffle 71 and the second baffle 72 are integrally formed. One side of the second baffle 72 contacts the slag baffle 3. Specifically, the side of the second baffle 72 away from the shield contacts the side of the slag baffle 3 away from the cutterhead 9. This design restricts the movement of the slag baffle 3 and prevents slag leakage. The first baffle 71 and the second baffle 72 are L-shaped. The first baffle 71 provides basic support along the fixed direction of the front shield 2, while the second baffle 72 extends perpendicular to the first baffle 71, forming a surface contact with the side of the slag baffle 3 away from the cutterhead 9. This precisely restricts the displacement of the slag baffle 3 and prevents it from shifting due to excessive force, which would affect the sealing effect.
[0041] Specific implementation steps During normal tunneling by the full-face tunneling machine, the main thrust cylinder pushes the front shield 2 and cutterhead 9 to move along the axial direction. The first and second cylinders push the wear-resistant layer 8 on the baffle plate 3 to contact the bottom and side walls of the tunnel opening 1, bringing it to a set pressure value. The pressure value is maintained by monitoring the pressure values set by the first and second cylinders, ensuring that the baffle plate 3 is in contact with the bottom and side walls during axial advancement. When the space of the tunnel opening 1 increases, the cylinder pressure detection value decreases, and the first and second cylinders drive the baffle plate 3 to move and fit against the bottom and side walls, keeping the cylinder pressure detection value within the preset range. When the pressure value increases, the reverse operation is performed to seal the leakage space 6.
[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A spill-resistant slag device for a trenching opening (1) characterized in that, It includes a front shield (2), a slag baffle (3), a first hydraulic device (4), and a second hydraulic device (5), wherein, A slag leakage space (6) is formed between the front shield (2) and the opening (1); The slag baffle (3) is located within the slag leakage space (6); The first hydraulic device (4) is movably mounted on the front shield (2). The output shaft of the first hydraulic device (4) is driven to connect with the slag baffle (3) so that the slag baffle (3) can move longitudinally back and forth to fit against the bottom wall of the slag leakage space (6). The second hydraulic device (5) is movably mounted on the front shield (2). The output shaft of the second hydraulic device (5) is driven to connect with the slag baffle (3) so that the slag baffle (3) can reciprocate horizontally and fit against the side wall of the slag leakage space (6).
2. A spill resistant residue device for widening a hole according to claim 1, wherein, It also includes a stop (7) disposed on the front shield (2), the stop (7) being used to restrict the slag baffle (3) from moving along the axial direction of the front shield (2).
3. A spill resistant residue device for widening a hole according to claim 2, wherein, The stop (7) includes a first stop (71) and a second stop (72), wherein, One end of the first stop block (71) is fixedly connected to the front shield (2); One end of the second stop (72) is fixedly connected to the other end of the first stop (71), and one side of the second stop (72) is in contact with the slag baffle (3).
4. A spill resistant residue device for use in expanding a hole according to claim 3, wherein, The first stop (71) and the second stop (72) are L-shaped.
5. A spill resistant residue device for use in excavating a hole according to claim 1, wherein, A first connecting seat (41) is provided between the first hydraulic device (4) and the front shield (2), the first connecting seat (41) is fixedly connected to the front shield (2), and the first hydraulic device (4) is rotatably connected to the first connecting seat (41); a second connecting seat (42) is provided between the first hydraulic device (4) and the slag baffle (3), the second connecting seat (42) is fixedly connected to the slag baffle (3), and the output shaft of the first hydraulic device (4) is rotatably connected to the second connecting seat (42).
6. A spill resistant residue device for use in excavating a hole according to claim 1, wherein, A third connecting seat (51) is provided between the second hydraulic device (5) and the front shield (2), the third connecting seat (51) is fixedly connected to the front shield (2), and the second hydraulic device (5) is rotatably connected to the third connecting seat (51); a fourth connecting seat (52) is provided between the second hydraulic device (5) and the slag baffle (3), the fourth connecting seat (52) is fixedly connected to the slag baffle (3), and the output end of the second hydraulic device (5) is rotatably connected to the fourth connecting seat (52).
7. A spill resistant residue device for use in excavating a hole according to claim 1, wherein, The first hydraulic device (4) and the second hydraulic device (5) are one or more of a cylinder, a hydraulic cylinder or an oil cylinder.
8. A spill resistant residue device for use in excavating a hole according to claim 1, wherein, The cross-section of the slag baffle (3) is a right-angled triangle.
9. A spill resistant residue device for use in the widening of a hole according to claim 8, wherein, The surfaces of the baffle plate (3) that contact the bottom and side walls of the slag leakage space (6) are provided with a wear-resistant layer (8).