Scraper blade for improving spraying and mixing flatness of primary support of tunnel

Abstract

The utility model relates to the technical field of improving primary support spraying and mixing, and discloses a scraping plate for improving tunnel primary support spraying and mixing flatness. The scraper blade for improving the tunnel primary support spraying and mixing flatness comprises a sleeve and a spraying and wetting manipulator, the spraying and wetting manipulator comprises a rubber nozzle, a protruding bolt is arranged at the top of the joint of the rubber nozzle and the spraying and wetting manipulator, the sleeve is matched with the rubber nozzle, the front end of the sleeve is fixedly connected with a connecting plate flush with the outer side edge of the sleeve, and the rubber nozzle is fixedly connected with the connecting plate. The device has the advantages that the scraping plate is additionally arranged at the front end of the wet spraying mechanical arm and is integrated with a wet spraying mechanical arm rubber nozzle, secondary leveling of the scraping plate is immediately carried out after partitioned spraying, and therefore compactness and flatness of concrete are guaranteed, and the problem that in the prior art, the scraping plate cannot be used for leveling the wet spraying mechanical arm rubber nozzle is solved. And concrete is only sprayed and covered between gaps of the steel arch in the primary support, but the compactness and the flatness of the concrete cannot be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of improving primary branch spraying and mixing, in particular to a scraper for improving the smoothness of primary branch spraying and mixing in a tunnel. Background Art

[0002] Initial support shotcrete operations typically refer to the initial support shotcrete operations during tunnel construction. After tunnel excavation, initial support is carried out on the excavation face to stabilize the surrounding rock, prevent collapse, and ensure construction safety.

[0003] In the existing technology, the initial support is only to spray concrete between the gaps of steel arch frames, but it cannot ensure the density and flatness of the concrete. Therefore, a scraper that improves the flatness of the initial support spraying of the tunnel is proposed to solve the above problems. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a scraper for improving the smoothness of the initial support spraying of the tunnel. It has the advantages of installing a scraper at the front end of the wet spraying manipulator and integrating it with the rubber nozzle of the wet spraying manipulator. After the zoned spraying, the scraper is immediately leveled for the second time, thereby ensuring the density and smoothness of the concrete. It solves the problem in the existing technology that the initial support is only to spray concrete between the gaps of the steel arch frame, but the density and smoothness of the concrete cannot be ensured.

[0006] (2) Technical solution

[0007] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a scraper for improving the smoothness of the initial support spraying and mixing of a tunnel, comprising a sleeve and a wet spraying manipulator, the wet spraying manipulator comprising a rubber nozzle, a raised bolt being provided at the top of the connection between the rubber nozzle and the wet spraying manipulator, the sleeve being adapted to the rubber nozzle, the front end of the sleeve being fixedly connected to a connecting plate flush with its outer edge, the front side of the connecting plate being fixedly connected to the scraper, the rear sides of the scrapers being fixedly connected to reinforcing ribs symmetrically distributed on the left and right, the ends of the reinforcing ribs away from the scraper being fixedly connected to the outer side of the sleeve, the top of the connecting plate being fixedly connected to a bolt nut, the outer side of the bolt nut being sleeved with a fixing buckle, the end of the fixing buckle away from the bolt nut being sleeved on the outer side of the raised bolt, the outer side of the raised bolt being threadedly connected to a fixing nut that fits tightly with the top of the fixing buckle.

[0008] The beneficial effects of the utility model are:

[0009] The scraper for improving the smoothness of the initial support spraying and mixing of the tunnel is installed by putting a sleeve on the outside of the rubber nozzle at the front end of the wet spraying manipulator, putting the end of the fixing buckle away from the bolt nut on the outside of the raised bolt, and then screwing the fixing nut on the outside of the raised bolt and making it fit tightly with the top of the fixing buckle. The device is integrated with the wet spraying manipulator. During the process of the wet spraying manipulator performing the initial support spraying and mixing of the tunnel, the wet spraying manipulator partitions the steel arch frame on the inner wall of the tunnel. After the partition spraying, the wet spraying manipulator immediately drives the scraper to perform secondary leveling on the concrete surface, leveling it to the edge of the steel arch frame, which has the advantage of ensuring the density and flatness of the concrete after spraying.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the sleeve is a 5mm thick steel plate, the diameter of the front end of the sleeve is 10cm, the diameter of the rear end of the sleeve is 13cm, and the length of the sleeve is 33cm.

[0012] Furthermore, the connecting plate is a 5mm thick steel plate, the length of the connecting plate is 26cm, and the width of the connecting plate is 11cm.

[0013] Furthermore, the scraper is a 5mm thick steel plate, the length of the scraper is 100cm, the width of the scraper is 8cm, and the distance between each scraper is increased by 20cm according to different surrounding rocks.

[0014] Furthermore, the reinforcing rib is a threaded steel bar with a diameter of 22 mm, and the angle between the opposite side of the reinforcing rib and the scraper is 44°.

[0015] Furthermore, the fixing buckle is a 5mm thick steel plate, the length of the fixing buckle is 50cm, and the width of the fixing buckle is 3cm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the rubber nozzle of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the utility model.

[0019] In the figure: 1. Sleeve; 2. Rubber nozzle; 3. Raised bolt; 4. Connecting plate; 5. Scraper; 6. Reinforcing rib; 7. Bolt nut; 8. Fixing buckle; 9. Fixing nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the embodiment, Figure 1-3 A scraper for improving the smoothness of the initial support spraying and mixing of a tunnel is given. The utility model includes a sleeve 1 and a wet spraying manipulator. The wet spraying manipulator includes a rubber nozzle 2. The top of the connection between the rubber nozzle 2 and the wet spraying manipulator is provided with a raised bolt 3. The sleeve 1 is adapted to the rubber nozzle 2. The front end of the sleeve 1 is fixedly connected to a connecting plate 4 flush with its outer edge. The front side of the connecting plate 4 is fixedly connected to a scraper 5. The rear sides of the scrapers 5 are fixedly connected to reinforcing ribs 6 that are symmetrically distributed on the left and right. The ends of the reinforcing ribs 6 away from the scraper 5 are fixedly connected to the outer side of the sleeve 1. The top of the connecting plate 4 is fixedly connected to a bolt nut 7. The outer side of the bolt nut 7 is provided with a fixing buckle 8. The end of the fixing buckle 8 away from the bolt nut 7 is sleeved on the outer side of the raised bolt 3. The outer side of the raised bolt 3 is threadedly connected to a fixing nut 9 that fits tightly with the top of the fixing buckle 8.

[0022] The sleeve 1 is a 5mm thick steel plate, the diameter of the front end of the sleeve 1 is 10cm, the diameter of the rear end of the sleeve 1 is 13cm, and the length of the sleeve 1 is 33cm;

[0023] The connecting plate 4 is a 5mm thick steel plate, the length of the connecting plate 4 is 26cm, and the width of the connecting plate 4 is 11cm;

[0024] The scraper 5 is a 5mm thick steel plate, the length of the scraper 5 is 100cm, the width of the scraper 5 is 8cm, and the distance between each scraper 5 increases by 20cm according to different surrounding rocks;

[0025] The reinforcing rib 6 is a threaded steel bar with a diameter of 22 mm, and the angle between the opposite side of the reinforcing rib 6 and the scraper 5 is 44 degrees;

[0026] The fixing buckle 8 is a 5mm thick steel plate, the length of the fixing buckle 8 is 50cm, and the width of the fixing buckle 8 is 3cm.

[0027] Working principle:

[0028] Step 1: Put the sleeve 1 on the outside of the rubber nozzle 2 at the front end of the spray robot, and put the end of the fixing buckle 8 away from the bolt nut 7 on the outside of the raised bolt 3;

[0029] Step 2: Screw the fixing nut 9 onto the outside of the raised bolt 3 and make it fit tightly with the top of the fixing buckle 8 to complete the installation of the device, which is integrated with the wet spraying manipulator;

[0030] Step 3: During the initial spraying and mixing of the tunnel by the wet spraying robot, the wet spraying robot divides the steel arch frame on the inner wall of the tunnel into sections. Immediately after the section spraying, the wet spraying robot drives the scraper 5 to perform a secondary leveling of the concrete surface to the edge of the steel arch frame, which has the advantage of ensuring the density and flatness of the concrete after spraying.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scraper for improving the smoothness of tunnel primary support spraying and mixing, comprising a sleeve (1) and a spraying manipulator, wherein the spraying manipulator comprises a rubber nozzle (2), and a protruding bolt (3) is provided at the top of the connection between the rubber nozzle (2) and the spraying manipulator, characterized in that: The sleeve (1) is adapted to the rubber nozzle (2), the front end of the sleeve (1) is fixedly connected to a connecting plate (4) flush with the outer edge thereof, the front side of the connecting plate (4) is fixedly connected to a scraper (5), the rear side of the scraper (5) is fixedly connected to reinforcing ribs (6) symmetrically distributed on the left and right, the end of the reinforcing ribs (6) away from the scraper (5) is fixedly connected to the outer side of the sleeve (1), the top of the connecting plate (4) is fixedly connected to a bolt nut (7), the outer side of the bolt nut (7) is sleeved with a fixing buckle (8), the end of the fixing buckle (8) away from the bolt nut (7) is sleeved on the outer side of the raised bolt (3), and the outer side of the raised bolt (3) is threadedly connected to a fixing nut (9) tightly fitted with the top of the fixing buckle (8).

2. A scraper for improving the smoothness of tunnel primary spraying and mixing according to claim 1, characterized in that: The sleeve (1) is a 5mm thick steel plate, the diameter of the front end of the sleeve (1) is 10cm, the diameter of the rear end of the sleeve (1) is 13cm, and the length of the sleeve (1) is 33cm.

3. The scraper for improving the smoothness of the primary spray mix in a tunnel according to claim 1, characterized in that: The connecting plate (4) is a 5mm thick steel plate, the length of the connecting plate (4) is 26cm, and the width of the connecting plate (4) is 11cm.

4. The scraper for improving the smoothness of the primary spray mix in a tunnel according to claim 1, characterized in that: The scraper (5) is a 5mm thick steel plate, the length of the scraper (5) is 100cm, the width of the scraper (5) is 8cm, and the distance between each scraper (5) increases by 20cm according to different surrounding rocks.

5. The scraper for improving the smoothness of the primary spray mix in a tunnel according to claim 1, characterized in that: The reinforcing rib (6) is a threaded steel bar with a diameter of 22 mm, and the angle between the opposite side of the reinforcing rib (6) and the scraper (5) is 44 degrees.

6. The scraper for improving the smoothness of the primary spray mix in a tunnel according to claim 1, characterized in that: The fixing buckle (8) is a 5mm thick steel plate, the length of the fixing buckle (8) is 50cm, and the width of the fixing buckle (8) is 3cm.

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