Tunnel primary support spraying wet-mixing leveling device

Abstract

The utility model belongs to the technical field of tunnel construction auxiliary instruments, and discloses a tunnel primary support spraying wet mixing leveling device which comprises a mounting steel pipe, the upper side and the lower side of the outer surface of the mounting steel pipe are movably sleeved with two pipe sleeves respectively, the right ends of the two pipe sleeves are both fixedly provided with fixing blocks, and the fixing blocks are fixedly connected with the mounting steel pipe. Clamping grooves are formed in the upper side and the lower side of the right end of the mounting steel pipe correspondingly. Through the arrangement of the clamping groove, the clamping rod, the spring, the circular shaft and the rotating block, when the handle is shifted, the rotating block rotates with the circular shaft as the axis, the circular shaft drives the ball block to move along with rotation of the rotating block, and therefore the clamping rod drives the circular plate to move along with the circular plate and compress the spring; therefore, the clamping groove and the clamping rod are separated, fixing of the clamping rod to the mounting steel pipe and the pipe sleeve is relieved, quick dismounting of the mounting steel pipe and the pipe sleeve can be achieved, and the dismounting and mounting convenience of the leveling device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction auxiliary instruments, and particularly relates to a wet-mixed leveling device for primary support spraying in tunnels. Background Technique

[0002] Wet-sprayed concrete means that cement, fine and coarse aggregates and water are mixed well in a certain proportion, and then with the help of various types of wet-spraying machines, the mixed concrete is transported to the nozzle through a feeding hose, and a liquid accelerator is added at the nozzle, and compressed air is used to supply energy to make the concrete form a material beam and be sprayed from the nozzle to the surrounding rock surface.

[0003] In the construction of tunnel primary support, the wet-spraying technology has been widely applied. In order to solve the problem that it is difficult to control the flatness of traditional wet-spraying construction for tunnel primary support, a leveling device is generally installed on the nozzle of the wet-spraying robotic arm. By controlling the robotic arm, the scraper of the leveling device is brought into contact with the sprayed concrete surface, the uneven sprayed concrete is removed, and finally the finishing is carried out after scraping, so as to ensure the flatness of the entire primary support surface. However, in the actual use process, the leveling device is mainly connected to the steel pipe on the nozzle of the robotic arm through a pipe boot sleeve or bolts, and both the pipe boot sleeve and bolts are fastened based on threads, and corresponding tools are required for disassembly and installation, and the operation is not convenient and fast, so it needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above problems. The utility model provides a wet-mixed leveling device for primary support spraying in tunnels, which has the advantages of quick and convenient disassembly and installation.

[0005] To achieve the above object, the utility model provides the following technical solution: A wet-mixed leveling device for primary support spraying in tunnels, including an installation steel pipe, two pipe sleeves are movably sleeved on the upper and lower sides of the outer surface of the installation steel pipe respectively. The number of the pipe sleeves is two. Fixed blocks are fixedly installed at the right ends of the two pipe sleeves. Card slots are respectively opened on the upper and lower sides at the right end of the installation steel pipe. Card rods are movably sleeved inside the card slots. The number of the card rods is two. The right ends of the two card rods respectively penetrate through the two pipe sleeves and extend into the fixed blocks. Circular plates are fixedly sleeved on the left sides of the outer surfaces of the two card rods respectively. The outer surface of the circular plate is movably sleeved with the inner surface of the fixed block. A spring is fixedly installed at the right end of the circular plate. The other end of the spring is fixedly connected with the inner surface of the fixed block. Ball blocks are respectively fixedly installed at the right ends of the two card rods. The outer surface of the ball block is movably sleeved with the inner surface at the right end of the fixed block. A circular shaft is fixedly sleeved inside the ball block. A rotating block is movably sleeved on the outer surface of the circular shaft. The left end of the rotating block is movably connected with the right end of the fixed block. A handle is fixedly installed at the bottom end of the rotating block.

[0006] Preferably, a limiting groove is formed at the left end of the installation steel pipe. The upper and lower ends of the limiting groove are respectively movably sleeved with limiting blocks. The number of the limiting blocks is two, and the outer surfaces of the two limiting blocks are respectively fixedly connected with the left sides of the inner surfaces of the two pipe sleeves.

[0007] Preferably, support rods are fixedly installed at the left and right ends of the two pipe sleeves respectively. The number of the support rods is two, and scrapers are fixedly installed at the tops of the two support rods.

[0008] Preferably, reinforcing ribs are fixedly installed at the bottoms of the back surfaces of the two support rods respectively, and the other ends of the reinforcing ribs are fixedly connected with the bottoms of the scrapers.

[0009] Preferably, the number of the rotating blocks is two, and the tops of the left ends of the two rotating blocks are arc surfaces.

[0010] Preferably, the bottom of the inner surface of the limiting groove is an inclined surface, and the included angle between the bottom of the inner surface of the limiting groove and the right side of the inner surface is 45 degrees.

[0011] Preferably, the number of the springs is two, and the two springs have the same size.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By arranging the clamping groove, the clamping rod, the spring, the round shaft and the rotating block, when the handle is toggled, the rotating block will rotate around the round shaft as the axis. With the rotation of the rotating block, the round shaft will drive the spherical block to move, so that the clamping rod will drive the round plate to move together and compress the spring, and then the clamping groove and the clamping rod will be separated, releasing the fixation of the clamping rod on the installation steel pipe and the pipe sleeve, thereby realizing the quick disassembly of the installation steel pipe and the pipe sleeve, and improving the convenience of disassembly and installation of the leveling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic cross-sectional structural diagram of the side of the present utility model;

[0016] Figure 3 is a schematic cross-sectional structural diagram of the clamping rod of the present utility model;

[0017] Figure 4 is Figure 2 a partial enlarged structural diagram at A in

[0018] Figure 5 is Figure 2Schematic diagram of the partial enlarged structure at position B in the [Chinese context].

[0019] In the figure: 1. Installation steel pipe; 2. Pipe sleeve; 3. Fixed block; 4. Card slot; 5. Card rod; 6. Circular plate; 7. Spring; 8. Spherical ball block; 9. Circular shaft; 10. Rotating block; 11. Handle; 12. Limit groove; 13. Limit block; 14. Support rod; 15. Scraper; 16. Reinforcing rib. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0021] As Figures 1 to 5 shown, the present invention provides a wet-mixed leveling device for the initial support of a tunnel, including an installation steel pipe 1. The upper and lower sides of the outer surface of the installation steel pipe 1 are respectively movably sleeved with pipe sleeves 2. The number of pipe sleeves 2 is two. Fixed blocks 3 are fixedly installed at the right ends of both pipe sleeves 2. Card slots 4 are respectively opened on the upper and lower sides of the right end of the installation steel pipe 1. Card rods 5 are movably sleeved inside the card slots 4. The number of card rods 5 is two. The right ends of the two card rods 5 respectively penetrate through the two pipe sleeves 2 and extend into the fixed blocks 3. Circular plates 6 are respectively fixedly sleeved on the left sides of the outer surfaces of the two card rods 5. The outer surface of the circular plate 6 is movably sleeved with the inner surface of the fixed block 3. A spring 7 is fixedly installed at the right end of the circular plate 6. The other end of the spring 7 is fixedly connected to the inner surface of the fixed block 3. Spherical ball blocks 8 are respectively fixedly installed at the right ends of the two card rods 5. The outer surface of the spherical ball block 8 is movably sleeved with the inner surface of the right end of the fixed block 3. A circular shaft 9 is fixedly sleeved inside the spherical ball block 8. A rotating block 10 is movably sleeved on the outer surface of the circular shaft 9. The left end of the rotating block 10 is movably connected to the right end of the fixed block 3. A handle 11 is fixedly installed at the bottom end of the rotating block 10; when the handle 11 is toggled, the handle 11 will drive the rotating block 10 to rotate around the circular shaft 9 as the axis. At this time, the circular shaft 9 will rotate with the rotating block 10 and drive the card rod 5 and the circular plate 6 to move along the inner surface of the fixed block 3 through the spherical ball block 8 and compress the spring 7. When the rotating block 10 rotates 90 degrees, the card rod 5 will be completely separated from the card slot 4, thereby releasing the locking of the card rod 5 on the installation steel pipe 1. In this way, the quick disassembly of the installation steel pipe 1 and the pipe sleeve 2 can be realized, so that the operator can complete the disassembly of the leveling device without using tools, thereby improving the convenience of using the leveling device.

[0022] Among them, a limiting groove 12 is opened at the left end of the installation steel pipe 1. The upper and lower ends of the limiting groove 12 are respectively movably sleeved with limiting blocks 13. The number of the limiting blocks 13 is two. The outer surfaces of the two limiting blocks 13 are respectively fixedly connected with the left inner surfaces of the two pipe sleeves 2. The inner surface of the limiting groove 12 and the outer surface of the limiting block 13 are both smooth, which ensures that the limiting block 13 will not get stuck when moving along the inner surface of the limiting groove 12. At the same time, the mutual cooperation of the limiting groove 12 and the limiting block 13 can not only ensure the stability of the pipe sleeve 2 when moving along the outer surface of the installation steel pipe 1, but also play a positioning role when the pipe sleeve 2 is sleeved on the installation steel pipe 1.

[0023] Among them, support rods 14 are respectively fixedly installed at the left and right ends of the two pipe sleeves 2. The number of the support rods 14 is two. Scrapers 15 are fixedly installed at the tops of the two support rods 14. Due to the existence of the support rods 14, they will play a role in connecting and fixing the scrapers 15 and the pipe sleeves 2, so that the position of the scrapers 15 can be fixed after the pipe sleeves 2 are connected to the installation steel pipe 1. And the existence of the scrapers 15 will cooperate with the wet shotcrete manipulator to level the initial support concrete of the tunnel, thereby improving the flatness of the initial support and solving the limitation of the height of manually shoveling the initial support concrete.

[0024] Among them, reinforcing ribs 16 are respectively fixedly installed at the bottoms of the opposite sides of the two support rods 14. The other ends of the reinforcing ribs 16 are fixedly connected to the bottoms of the scrapers 15. Due to the existence of the reinforcing ribs 16, a stable triangular structure will be formed among the scrapers 15, the reinforcing ribs 16 and the support rods 14. Thus, when the installation steel pipe 1 drives the pipe sleeves 2, the support rods 14 and the scrapers 15 to level the initial support of the tunnel, the firmness of the scrapers 15 is enhanced and the stress intensity of the scrapers 15 is increased.

[0025] Among them, the number of the rotating blocks 10 is two. The tops of the left ends of the two rotating blocks 10 are arc surfaces. Due to the design of the arc surfaces at the tops of the left ends of the rotating blocks 10, when the rotating blocks 10 rotate around the circular shaft 9 as the axis, the smoothness of the rotation of the rotating blocks 10 will be improved, and at the same time, the difficulty for the operator to rotate the rotating blocks 10 can also be reduced.

[0026] Among them, the bottom of the inner surface of the limiting groove 12 is an inclined surface, and the included angle between the bottom of the inner surface of the limiting groove 12 and the right inner surface is 45 degrees. Due to the design of the inclined surface at the bottom of the inner surface of the limiting groove 12, when the concrete residue adheres to the inner surface of the limiting groove 12, it can be scraped off by the limiting block 13, so as not to interfere with the positioning function of the limiting groove 12 and the limiting block 13.

[0027] Among them, the number of the springs 7 is two, and the sizes of the two springs 7 are the same. Since the sizes of the two springs 7 are the same, the two springs 7 can provide the same elastic force, so that the operator only needs to provide the same pulling force when compressing the two springs 7.

[0028] The working principle and use process of this utility model:

[0029] First, the operator respectively moves the two handles 11, so that the handle 11 rotates with the rotating block 10 around the circular shaft 9. As the rotating block 10 rotates, the circular shaft 9 will move along the inner surface of the fixed block 3 through the spherical block 8 with the clamping rod 5 and the circular plate 6 and compress the spring 7. When the rotating block 10 rotates ninety degrees, under the restoring action of the spring 7, the top of the original position of the rotating block 10 and the right end of the fixed block 3 will remain in contact, so that the rotating block 10 and the handle 11 are perpendicular to the right end of the fixed block 3. At this time, the clamping rod 5 will be completely separated from the clamping groove 4, thereby releasing the locking state of the installed steel pipe 1 and the pipe sleeve 2. Then the operator pulls the scraper 15 to separate the installed steel pipe 1 and the pipe sleeve 2. With the mutual cooperation of various mechanisms, the operator can realize the rapid disassembly and installation of the leveling device without using corresponding tools, thereby improving the convenience of disassembly and installation of the leveling device.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wet-mixed leveling device for primary support of tunnels, comprising a mounting steel pipe (1), characterized in that: On the upper and lower sides of the outer surface of the installation steel pipe (1), sleeve tubes (2) are movably sleeved respectively. The number of the sleeve tubes (2) is two. Fixed blocks (3) are fixedly installed at the right ends of the two sleeve tubes (2). Card slots (4) are respectively formed in the upper and lower sides at the right end of the installation steel pipe (1). A clamping rod (5) is movably sleeved in the card slot (4). The number of the clamping rods (5) is two. The right ends of the two clamping rods (5) respectively penetrate through the two sleeve tubes (2) and extend into the fixed blocks (3). Circular plates (6) are fixedly sleeved on the left sides of the outer surfaces of the two clamping rods (5). The outer surface of the circular plate (6) is movably sleeved with the inner surface of the fixed block (3). A spring (7) is fixedly installed at the right end of the circular plate (6). The other end of the spring (7) is fixedly connected with the inner surface of the fixed block (3). Spherical blocks (8) are respectively fixedly installed at the right ends of the two clamping rods (5). The outer surface of the spherical block (8) is movably sleeved with the inner surface at the right end of the fixed block (3). A circular shaft (9) is fixedly sleeved in the spherical block (8). A rotating block (10) is movably sleeved on the outer surface of the circular shaft (9). The left end of the rotating block (10) is movably connected with the right end of the fixed block (3). A handle (11) is fixedly installed at the bottom end of the rotating block (10).

2. The wet-mix leveling device for tunnel primary support spraying according to claim 1, wherein: A limiting groove (12) is formed at the left end of the installation steel pipe (1). Limiting blocks (13) are movably sleeved respectively at the upper and lower ends of the limiting groove (12). The number of the limiting blocks (13) is two. The outer surfaces of the two limiting blocks (13) are respectively fixedly connected with the left sides of the inner surfaces of the two sleeve tubes (2).

3. A wet-mixed leveling device for tunnel primary support spraying according to claim 1, characterized in that: Support rods (14) are fixedly installed respectively at the left and right ends of the two sleeve tubes (2). The number of the support rods (14) is two. Scrapers (15) are fixedly installed at the top ends of the two support rods (14).

4. A wet-mixed tunneling initial support spraying leveling device according to claim 3, characterized in that: Reinforcing ribs (16) are fixedly installed respectively at the bottom parts of the opposite sides of the two support rods (14). The other ends of the reinforcing ribs (16) are fixedly connected with the bottom ends of the scrapers (15).

5. The wet-mixed leveling device for primary support spraying in a tunnel according to claim 1, wherein: The number of the rotating blocks (10) is two. The tops of the left ends of the two rotating blocks (10) are arc surfaces.

6. The wet-mixed leveling device for the primary support of a tunnel according to claim 2, wherein: The bottom of the inner surface of the limiting groove (12) is an inclined surface. The included angle between the bottom of the inner surface of the limiting groove (12) and the right side of the inner surface is 45 degrees.

7. A wet-mixed tunneling initial support spraying and leveling device according to claim 1, characterized in that: The number of the springs (7) is two. The two springs (7) have the same size.

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