Inverted arch lining substrate cleaning device for tunnel

Abstract

The utility model discloses an inverted arch lining base cleaning device for a tunnel, which is mounted on bucket teeth of an excavator bucket and comprises a first steel plate framework, the first steel plate framework is of a rectangular frame structure, a plurality of I-shaped steels are welded on the periphery of the first steel plate framework in the circumferential direction, a second steel plate framework is welded on the periphery of the I-shaped steels, and the second steel plate framework is of a rectangular frame structure. The second steel plate framework is of a rectangular frame structure, a clamp is arranged on the second steel plate framework, and the clamp is arranged to be bucket teeth used for being connected with an excavator bucket. Wherein a top sealing steel plate is welded to the top face of the first steel plate framework, a plurality of steel wire ropes are installed in an area defined by the top sealing steel plate and the first steel plate framework, and the steel wire ropes are used for cleaning an inverted arch lining base. The I-shaped steel is welded on the periphery of the first steel plate framework, so that the structural strength of the device is improved, the deformation risk in the using process is reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology. More specifically, this utility model relates to a device for cleaning the foundation of tunnel invert lining. Background Technology

[0002] Currently, after the initial support excavation of the invert arch in high-speed railway tunnels in China, due to the limited working space and small base working surface, manual labor is usually required in conjunction with excavators to clean the base. However, the manual labor and excavator-assisted base cleaning has the problems of long cleaning time and incomplete cleaning.

[0003] To improve cleaning efficiency and ensure thorough cleaning of the invert arch, Chinese utility model patent CN218439389U proposed a "rapid replacement tunnel invert arch cleaning device," which includes an upper steel plate, a lower steel plate, a steel rope, and a fixing sleeve. The upper and lower steel plates are fixedly connected by bolts, and fixing sleeves are welded to both ends of the upper steel plate. The steel rope is placed between the upper and lower steel plates and connected to the excavator bucket through the fixing sleeve, achieving rapid and thorough cleaning of the base. However, the above-mentioned tunnel lining invert arch cleaning device has the following shortcomings: 1) The upper and lower steel plates are fixed by bolts, the web thickness is small, the structural strength is low, and the steel plates are prone to bending during use, making subsequent installation and use impossible; 2) The steel rope is clamped between the upper and lower steel plates and is prone to falling off during use. Summary of the Invention

[0004] Another objective of this invention is to provide a tunnel invert lining base cleaning device with high structural strength and long service life.

[0005] To achieve these objectives and other advantages according to the present invention, a tunnel invert arch lining base cleaning device is provided, which is installed on the bucket teeth of an excavator bucket. It includes a first steel plate frame, which is a rectangular frame structure. Multiple I-beams are welded to the outer periphery of the first steel plate frame along its circumferential direction. A second steel plate frame is welded to the outer periphery of the multiple I-beams. The second steel plate frame is a rectangular frame structure. A clamp is provided on the second steel plate frame. The clamp is configured to connect the bucket teeth of the excavator bucket.

[0006] The top surface of the first steel plate frame is welded with a capping steel plate, and multiple steel wire ropes are installed in the area enclosed by the capping steel plate and the first steel plate frame. The steel wire ropes are used for cleaning the invert arch lining base.

[0007] Preferably, multiple anchoring steel bars are inserted inside the multiple wire ropes.

[0008] Preferably, the clamp includes a mounting sleeve, a bucket tooth pin, and a retaining spring. The mounting sleeve is welded to the outer wall of the second steel plate frame. The mounting sleeve has a mounting hole. The bucket teeth of the bucket are fitted inside the mounting sleeve. The bucket tooth pin passes through the mounting hole and the screw hole on the bucket teeth and is fixed by the retaining spring.

[0009] Preferably, lifting rings are installed on the second steel plate frame.

[0010] Preferably, the lifting ring and the clamp are respectively disposed on both sides of the second steel plate frame.

[0011] Preferably, the top surface height of the capping steel plate is higher than the top surface height of the second steel plate frame and the I-beam.

[0012] Preferably, the multiple I-beams are welded together to form a whole.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. This utility model improves the structural strength of the device by welding I-beams to the outer periphery of the first steel plate frame, reduces the risk of deformation during use, and increases the service life of the device.

[0015] 2. The steel wire rope of this utility model is reinforced with anchoring steel bars, making it less likely to fall off during use;

[0016] 3. This utility model is installed on the bucket teeth of the excavator using a clamp, which is convenient for installation and removal. The clamp ensures the firmness of the connection between the bucket teeth and the device, and avoids the situation where the tunnel invert arch lining base cleaning device falls off the bucket teeth due to collision during the bottom cleaning operation, thus ensuring the smooth progress of the bottom cleaning operation.

[0017] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0018] Figure 1 This is a side cross-sectional view of a tunnel invert arch lining base cleaning device according to an embodiment of the present invention;

[0019] Figure 2 This is a top view of the tunnel invert arch lining base cleaning device described in the above embodiments;

[0020] Figure 3 This is a bottom view of the tunnel arch lining base cleaning device described in the above embodiments;

[0021] Figure 4This is a schematic diagram of the connection structure between the tunnel invert arch lining base cleaning device and the excavator bucket described in the above embodiments;

[0022] Explanation of reference numerals in the instruction manual:

[0023] 1. I-beam, 2. First steel plate frame, 3. Second steel plate frame, 4. Top steel plate, 5. Wire rope, 6. Anchoring steel bar, 7. Lifting ring, 8. Mounting sleeve, 9. Bucket tooth pin, 10. Snap ring, 11. Bucket. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0025] It should be noted that in the description of this utility model, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figure 1-4 As shown, this utility model provides a tunnel invert arch lining base cleaning device, which is installed on the bucket teeth of an excavator bucket 11. It includes a first steel plate frame 2, which is a rectangular frame structure. Multiple I-beams 1 are welded to the outer periphery of the first steel plate frame 2 along its circumference. A second steel plate frame 3 is welded to the outer periphery of the multiple I-beams 1. The second steel plate frame 3 is a rectangular frame structure. A clamp is provided on the second steel plate frame 3. The clamp is configured to connect the bucket teeth of the excavator bucket 11.

[0027] The top surface of the first steel plate frame 2 is welded with a capping steel plate 4. Multiple steel wire ropes 5 are installed in the area enclosed by the capping steel plate 4 and the first steel plate frame 2. The steel wire ropes 5 are used for cleaning the invert arch lining base.

[0028] In the above technical solution, the first steel plate frame 2 is a rectangular frame structure formed by welding four first steel plates in sequence. An I-beam 1 is welded to the outer wall of any one of the first steel plates. The second steel plate frame 3 is formed by welding four second steel plates in sequence, and is welded to the outer walls of multiple I-beams 1 to seal the edges of the I-beams 1. The top surface of the first steel plate frame 2 is sealed by a capping steel plate 4. Multiple steel wire ropes 5 are clamped in the area enclosed by the first steel plate frame 2 and the capping steel plate 4. The second steel plate frame 3 is equipped with clamps. During the bottom cleaning operation, the tunnel invert lining base cleaning device is installed on the bucket teeth of the excavator bucket 11 using the clamps. When in use, the steel wire ropes 5 are connected to the ground. The device, driven by the excavator bucket 11, moves back and forth, mimicking the principle of a broom sweeping the floor. Steel wire rope 5 sweeps away slag, small stones, and other loose debris from the invert arch base, thus completing the cleaning operation. In this invention, I-beams 1 are welded to the outer periphery of the first steel plate frame 2. The I-beams 1 enhance the structural strength of the device, reduce the risk of deformation during use, and extend the device's service life. The first steel plate frame 2 adopts a rectangular structure, with the steel wire rope 5 secured inside. Compared to the traditional flat structure, this provides a larger cleaning surface, further improving cleaning efficiency. All steel plates are 2cm thick Q460D steel plates.

[0029] In another technical solution, multiple anchoring steel bars 6 are inserted inside the multiple steel wire ropes 5.

[0030] In this technical solution, such as Figure 1 , Figure 3 As shown, multiple wire ropes 5 are clamped within the rectangular area enclosed by the first steel plate frame 2. The top surface of the wire ropes 5 abuts against the capping steel plate 4, and the outer periphery of the wire ropes 5 abuts against the inner periphery of the first steel plate frame 2. Multiple anchoring steel bars 6 are inserted inside the wire ropes 5. The anchoring steel bars 6 can further reduce the gap between the wire ropes 5, and squeeze and compress the multiple wire ropes 5, so that the wire ropes 5 are firmly fixed in the first steel plate frame 2. During use, the wire ropes 5 are not easy to fall off. The diameter of the wire ropes 5 is 50mm. After multiple field tests, it was found that using wire ropes 5 with a diameter of 50mm can effectively reduce the wear of the wire ropes 5 and further improve the service life of the device.

[0031] In another technical solution, the clamp includes a mounting sleeve 8, a bucket tooth pin 9, and a retaining spring 10. The mounting sleeve 8 is welded to the outer side wall of the second steel plate frame 3. The mounting sleeve 8 has a mounting hole. The bucket teeth of the bucket 11 are fitted inside the mounting sleeve 8. The bucket tooth pin 9 passes through the mounting hole and the screw hole on the bucket teeth of the bucket 11 and is fixed by the retaining spring 10.

[0032] In this technical solution, such as Figure 2As shown, the bucket teeth of the excavator 11 are provided with screw holes that match the bucket tooth pin 9, and the mounting sleeve 8 is provided with mounting holes that match the bucket tooth pin 9. When performing bottom cleaning operations, the bucket teeth of the excavator 11 are first fitted into the mounting sleeve 8. After the bucket tooth pin 9 passes through the mounting hole and the screw hole, it is limited by the retaining spring 10 to prevent the bucket tooth pin 9 from falling off. The tunnel invert lining base cleaning device is installed on the bucket teeth of the excavator 11 by the clamp. It is easy to install and remove, and the clamp ensures the firmness of the connection between the bucket teeth and the device, avoiding the situation where the tunnel invert lining base cleaning device falls off the bucket teeth due to collision during bottom cleaning operations, thus ensuring the smooth progress of bottom cleaning operations.

[0033] In another technical solution, a lifting ring 7 is installed on the second steel plate frame 3; the lifting ring 7 and the clamp are respectively arranged on both sides of the second steel plate frame 3.

[0034] In this technical solution, the lifting ring 7 facilitates the on-site movement of the tunnel invert arch lining base cleaning device; the lifting ring 7 and the clamp are respectively set on both sides of the second steel plate frame 3, so that the lifting ring 7 will not obstruct the connection between the bucket teeth of the bucket 11 and the clamp.

[0035] In another technical solution, the top surface height of the capping steel plate 4 is higher than the top surface height of the second steel plate frame 3 and the I-beam 1.

[0036] In this technical solution, the top surface height of the capping steel plate 4 is set higher than the top surface height of the second steel plate frame 3 and the I-beam 1. When the wire rope 5 needs to be replaced due to its long service life, the pressure can be relieved in the area enclosed by the first steel plate frame 2 and the capping steel plate 4 by cutting the capping steel plate 4, so that the wire rope 5 and the anchoring steel bar 6 can be easily removed from the first steel plate frame 2. The replacement is convenient and avoids cutting the frame for replacement.

[0037] In another technical solution, multiple I-beams 1 are welded together to form a whole.

[0038] In this technical solution, multiple I-beams 1 are welded together to form a whole, which further improves the overall integrity of the device structure and the structural strength of the device.

[0039] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A device for cleaning the foundation of tunnel invert lining, which is installed on the bucket teeth of an excavator bucket, characterized in that, The device includes a first steel plate frame, which is a rectangular frame structure. Multiple I-beams are welded to the outer periphery of the first steel plate frame along its circumferential direction. A second steel plate frame is welded to the outer periphery of the multiple I-beams. The second steel plate frame is a rectangular frame structure. A clamp is provided on the second steel plate frame. The clamp is configured to connect the bucket teeth of the excavator bucket. The first steel plate frame has a capping steel plate welded to its top surface. Multiple steel wire ropes are installed in the area enclosed by the capping steel plate and the first steel plate frame. Multiple anchoring steel bars are inserted inside the multiple steel wire ropes. The steel wire ropes are configured to clean the base of the invert arch lining.

2. The tunnel invert lining foundation cleaning device as described in claim 1, characterized in that, The clamp includes a mounting sleeve, a bucket tooth pin, and a retaining spring. The mounting sleeve is welded to the outer wall of the second steel plate frame. The mounting sleeve has a mounting hole. The bucket teeth of the bucket are fitted inside the mounting sleeve. The bucket tooth pin passes through the mounting hole and the screw hole on the bucket teeth and is fixed by the retaining spring.

3. The tunnel invert lining foundation cleaning device as described in claim 1, characterized in that, The second steel plate frame is equipped with lifting rings.

4. The tunnel invert lining foundation cleaning device as described in claim 3, characterized in that, The lifting ring and the clamp are respectively installed on both sides of the second steel plate frame.

5. The tunnel invert lining foundation cleaning device as described in claim 1, characterized in that, The top surface height of the capping steel plate is higher than the top surface height of the second steel plate frame and the I-beam.

6. The tunnel invert lining foundation cleaning device as described in claim 1, characterized in that, Multiple I-beams are welded together to form a whole.

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