Connecting device of tunnel primary support feet-lock anchor pipe and I-shaped steel

Abstract

The utility model discloses a connecting device of a tunnel primary support feet-lock anchor pipe and I-shaped steel, which belongs to the technical field of underground engineering structures, and comprises an I-shaped steel body for supporting a tunnel, a shell and two feet-lock anchor pipe bodies, the I-shaped steel body is arranged between the two feet-lock anchor pipe bodies, the shell is arranged at the front end of the I-shaped steel body, and the shell is connected with the I-shaped steel body. Two first threaded rods are rotationally arranged in the shell, threaded sleeves are in threaded connection with the two first threaded rods, fixing rods are fixedly arranged at the tops and the bottoms of the two threaded sleeves, and first limiting plates fixed to the fixing rods are arranged on the two sides of the shell. Connection work of the shell and the I-shaped steel body is facilitated through the mounting assembly, the rotating rod and the bevel gear transmission assembly are used for driving the two first threaded rods to rotate, the width of the two first limiting plates can be adjusted according to the size of the I-shaped steel body, adaptability is high, use limitation is avoided, and similarly, a rotating disc is rotated anticlockwise to drive the rotating rod to rotate, and the rotating rod is driven to rotate. And the first limiting plate can be driven to reset, and the locking anchor pipe body and the I-shaped steel body are disassembled.

Description

Technical Field

[0001] This utility model relates to the field of underground engineering structure technology, and belongs to a connection device between the anchor pipe of the initial support of a tunnel and the I-beam. Background Technology

[0002] In tunnel construction, initial support is a crucial step in ensuring tunnel stability and safety. The connection device between the anchor pipe and the I-beam can effectively transfer the anchoring force of the anchor pipe to the I-beam, enhancing the overall stability of the initial support structure and preventing tunnel deformation and collapse.

[0003] For example, the existing technology disclosure number CN215761745U describes a connection device between a tunnel initial support anchor pipe and an I-beam. This utility model uses bolts and nuts to fasten the anchor pipe and the I-beam, ensuring reliable and stable quality. Electric welding is no longer used on the construction site, making construction safer. Installation is simple, construction procedures are short, and construction efficiency is improved.

[0004] The aforementioned connection device for connecting the tunnel initial support anchor pipe and the I-beam uses connectors to fasten the anchor pipe and the I-beam. Although it is easy to install and has high construction efficiency, it can only connect I-beams of a fixed size. Since the sizes of I-beams are not the same, the connection position cannot be adjusted according to the size of the I-beam. When the width of the I-beam used and the connecting column are not compatible, an effective connection cannot be made, which has certain limitations. Based on this, this utility model provides a connection device for connecting the tunnel initial support anchor pipe and the I-beam with adjustable width and strong adaptability. Utility Model Content

[0005] To address this issue, this utility model provides a connection device for the initial support anchor pipe of a tunnel and the I-beam, thereby solving the problem in the prior art that the connection device cannot be adjusted in width and therefore cannot be used with I-beams of different sizes.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A connection device between a tunnel initial support anchor pipe and an I-beam includes an I-beam body for tunnel support, a shell, and two anchor pipe bodies. The I-beam body is located between the two anchor pipe bodies. The shell is located at the front end of the I-beam body. Two threaded rods are rotatably provided inside the shell. Each threaded rod is threadedly connected to a threaded sleeve. Fixed rods are fixed at the top and bottom of each threaded sleeve. Limiting plates fixed to the fixed rods are provided on both sides of the shell. Removable limiting plates are fixed on the side of each limiting plate away from the fixed rod. A rotating rod passes through the top of the shell. The rotating rod is connected to the two threaded rods via a bevel gear transmission assembly. A turntable is fixed at the top of the rotating rod. A fixing assembly for fixing the turntable is provided at the top of the shell. The shell is connected to the I-beam body via an installation assembly.

[0008] Furthermore, the fixing component includes a cover, which is detachably fixed to the top of the housing. A nut sleeve is fixedly embedded in the inner wall of the top of the cover. A threaded rod II passes through the inside of the nut sleeve. The threaded rod II is threadedly connected to the nut sleeve, and the top of the threaded rod II passes through the top of the cover and extends to the outside of the cover. Multiple racks are fixedly provided at the bottom of the threaded rod II. A wear-resistant plate is fixedly provided at the top of the turntable, and the multiple racks abut against the wear-resistant plate.

[0009] Furthermore, a knob is fixedly provided on the top of the threaded rod 2. The knob is located above the cover. The threaded rod 2 can be rotated by the knob, thereby improving the firmness between the rack and the wear-resistant plate.

[0010] Furthermore, the mounting assembly includes a fixing plate fixed to the bottom of the housing, electric push rods fixed on both sides of the fixing plate, and connecting plates fixed on the side of the two electric push rods away from the fixing plate. The two connecting plates are distributed on both sides of the I-beam. The position of the connecting plates can be adjusted by using the electric push rods, thereby fixing the housing and the I-beam together.

[0011] Furthermore, a power supply box is fixedly installed inside the housing, and a storage battery is installed inside the power supply box. The storage battery can provide electrical energy, making it easy to carry and use.

[0012] Furthermore, the top and bottom inner walls of the housing are provided with sliding grooves on both sides, and each fixed rod is fixed with a slider on the side away from the threaded rod. The slider is slidably connected to the sliding groove. By using the slider and the sliding groove to cooperate, the stability of the movement of the fixed rod can be improved.

[0013] Furthermore, bearings are fixedly installed on the inner walls of both sides of the housing, and one end of each of the two threaded rods is fixedly connected to the inner ring of the two bearings. The use of bearings can reduce the wear of the threaded rods during rotation, thereby greatly improving the service life of the threaded rods.

[0014] Furthermore, a door panel is hinged to the front end of the housing, and a handle is fixedly provided at the front end of the door panel to facilitate the opening of the door panel by the staff.

[0015] This utility model has the following advantages:

[0016] 1. This utility model facilitates the connection between the housing and the I-beam body through the installation components. The rotating rod and bevel gear transmission components drive the two threaded rods to rotate. The width of the two limiting plates can be adjusted according to the size of the I-beam body, which has strong adaptability and no usage restrictions. Similarly, rotating the turntable counterclockwise drives the rotating rod to rotate, which can reset the limiting plate and disassemble the locking foot anchor pipe body and the I-beam body.

[0017] 2. Push the threaded rod two downward by turning the knob, so that the multiple racks at the bottom of the threaded rod two abut against the wear-resistant plates, so as to prevent the turntable from loosening and affecting the connection between the I-beam body and the anchor pipe body. Similarly, rotate the knob in the opposite direction to drive the threaded rod two upward so that the racks separate from the wear-resistant plates. Then you can continue to rotate the turntable, open the door panel, and clean and wipe the inside of the shell. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 A schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the housing after disassembly provided by the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of part A in the image;

[0023] Figure 4 A cross-sectional view of the housing provided for this utility model;

[0024] Figure 5 Two sectional views of the cover, nut sleeve and threaded rod provided by this utility model;

[0025] Figure 6 A cross-sectional view of the wear-resistant sheet provided by this utility model.

[0026] In the diagram: 1. I-beam body; 2. Shell; 3. Anchor pipe body; 4. Threaded rod one; 5. Threaded sleeve; 6. Fixing rod; 7. Limiting plate one; 8. Limiting plate two; 9. Rotating rod; 10. Bevel gear transmission assembly; 11. Turntable; 12. Fixing assembly; 13. Mounting assembly; 14. Power supply box; 15. Slide groove; 16. Slider; 17. Bearing; 18. Door panel;

[0027] 1201. Cover; 1202. Nut sleeve; 1203. Threaded rod II; 1204. Rack; 1205. Wear-resistant plate; 1206. Knob;

[0028] 1301. Fixed plate; 1302. Electric push rod; 1303. Connecting plate. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Refer to the instruction manual appendix Figure 1-6 This utility model provides a connection device between the initial support anchor pipe and the I-beam of a tunnel, including an I-beam body 1, a shell 2 and two anchor pipe bodies 3 for tunnel support. The I-beam body 1 is located between the two anchor pipe bodies 3. The shell 2 is located at the front end of the I-beam body 1. Two threaded rods 4 are rotatably provided inside the shell 2. Threaded sleeves 5 are threadedly connected to the two threaded rods 4. Fixing rods 6 are fixed at the top and bottom of the two threaded sleeves 5. Limiting plates 7 are fixed to the fixing rods 6 on both sides of the shell 2. Removable limiting plates 8 are fixed on the side of the two limiting plates 7 away from the fixing rods 6. A rotating rod 9 passes through the top of the shell 2. The rotating rod 9 is connected to the two threaded rods 4 through a bevel gear transmission assembly 10. A turntable 11 is fixed at the top of the rotating rod 9.

[0031] The housing 2 is connected to the I-beam body 1 via the mounting assembly 13. The mounting assembly 13 includes a fixing plate 1301 fixed to the bottom of the housing 2. Electric push rods 1302 are fixed on both sides of the fixing plate 1301. Connecting plates 1303 are fixed on the side of the two electric push rods 1302 away from the fixing plate 1301. The two connecting plates 1303 are distributed on both sides of the I-beam body 1. The position of the connecting plates 1303 can be adjusted by using the electric push rods 1302, so that the housing 2 and the I-beam body 1 can be fixed together.

[0032] Furthermore, a power supply box 14 is fixedly installed inside the housing 2, and a storage battery is installed inside the power supply box 14. The storage battery can provide power, making it easy to carry and use.

[0033] Furthermore, grooves 15 are provided on both sides of the inner wall of the top and bottom of the housing 2. A slider 16 is fixedly provided on the side of each fixed rod 6 away from the threaded rod 4. The slider 16 is slidably connected to the groove 15. By using the cooperation between the slider 16 and the groove 15, the stability of the movement of the fixed rod 6 can be improved. Bearings 17 are fixedly provided on both sides of the inner wall of the housing 2. One end of each of the two threaded rods 4 is fixedly connected to the inner ring of the two bearings 17. The bearings 17 can reduce the wear of the threaded rods 4 during rotation, thereby greatly improving the service life of the threaded rods 4.

[0034] In use, the operator first attaches the back of the housing 2 to the front of the I-beam 1, then uses the electric push rod 1302 to move the connecting plate 1303. The two connecting plates 1303 are used to fix the housing 2 and the I-beam 1 together, facilitating the connection between the I-beam 1 and the anchor pipe 3. After fixing, the operator rotates the turntable 11 clockwise via the rotating rod 9. The rotating rod 9 drives the two threaded rods 4 to rotate via the bevel gear transmission assembly 10. The threaded sleeves 5 on the threaded rods 4 drive the fixing rod 6. The movement stops when the I-beam 1 is connected to the required width, thus achieving the extension function. The width of the connecting device can be adjusted according to the size of the I-beam 1, making it highly adaptable and without usage restrictions. After adjustment, the worker places the locking foot anchor tube 3 between the first limiting plate 7 and the second limiting plate 8 to complete the connection between the I-beam 1 and the locking foot anchor tube 3. Similarly, by rotating the rotating rod 9 counterclockwise through the turntable 11, the first limiting plate 7 can be reset, allowing the locking foot anchor tube 3 and the I-beam 1 to be disassembled.

[0035] Refer to the instruction manual appendix Figure 1-6 The top of the housing 2 is provided with a fixing component 12 for fixing the turntable 11. The fixing component 12 includes a cover 1201, which is detachably fixed to the top of the housing 2. A nut sleeve 1202 is fixedly embedded in the inner wall of the top of the cover 1201. A threaded rod 1203 passes through the inside of the nut sleeve 1202, and the top of the threaded rod 1203 passes through the top of the cover 1201 and extends to the outside of the cover 1201. Multiple racks 1204 are fixedly provided at the bottom of the threaded rod 1203. A wear-resistant plate 1205 is fixedly provided at the top of the turntable 11. The multiple racks 1204 abut against the wear-resistant plate 1205.

[0036] Furthermore, a knob 1206 is fixedly provided on the top of the threaded rod 1203. The knob 1206 is fixed inside the nut sleeve 1202. The knob 1206 can be used to push the threaded rod 1203, thereby improving the firmness between the rack 1204 and the wear-resistant plate 1205. A door panel 18 is hinged to the front end of the housing 2. A handle is fixedly provided on the front end of the door panel 18, which makes it easy for the staff to open the door panel 18.

[0037] By setting a cover 1201 on the top of the housing 2, the screw rod 1203 is pushed down by the knob 1206, so that the multiple racks 1204 at the bottom of the screw rod 1203 abut against the wear-resistant plate 1205. In this way, after the turntable 11 is adjusted, the turntable 11 can be firmly fixed by the cooperation of the racks 1204 and the wear-resistant plate 1205, so as to prevent the turntable 11 from loosening and affecting the connection between the I-beam body 1 and the anchor pipe body 3. Similarly, by grasping the screw rod 1203 and moving it up, the racks 1204 and the wear-resistant plate 1205 are separated, and the turntable 11 can continue to be rotated. The door panel 18 can be opened to clean and wipe the inside of the housing 2.

[0038] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A connection device between a tunnel initial support anchor pipe and an I-beam, comprising an I-beam body (1) for tunnel support, a shell (2) and two anchor pipe bodies (3), wherein the I-beam body (1) is disposed between the two anchor pipe bodies (3), and the shell (2) is disposed at the front end of the I-beam body (1), characterized in that: The housing (2) is provided with two threaded rods (4) inside, and each of the two threaded rods (4) is threadedly connected with a threaded sleeve (5); The top and bottom of the two threaded sleeves (5) are fixed with fixing rods (6), and the two sides of the housing (2) are provided with limiting plates (7) fixed with the fixing rods (6). The two limiting plates (7) are fixed with detachable limiting plates (8) on the side away from the fixing rods (6). The top of the housing (2) is penetrated by a rotating rod (9), and the rotating rod (9) is connected to the two threaded rods (4) by a bevel gear transmission assembly (10). The top of the rotating rod (9) is fixed with a turntable (11), and the top of the housing (2) is provided with a fixing component (12) for fixing the turntable (11). The housing (2) is connected to the I-beam body (1) through an installation component (13).

2. The connection device between the initial support anchor pipe and the I-beam of a tunnel according to claim 1, characterized in that: The fixing component (12) includes a cover (1201), which is detachably fixed to the top of the housing (2). A nut sleeve (1202) is fixedly embedded in the inner wall of the top of the cover (1201). A threaded rod (1203) passes through the inside of the nut sleeve (1202). The threaded rod (1203) is threadedly connected to the nut sleeve (1202). The top of the threaded rod (1203) passes through the top of the cover (1201) and extends to the outside of the cover (1201). A plurality of racks (1204) are fixedly provided at the bottom of the threaded rod (1203). A wear-resistant plate (1205) is fixedly provided at the top of the turntable (11). The plurality of racks (1204) abut against the wear-resistant plate (1205).

3. The connection device between the initial support anchor pipe and the I-beam of a tunnel according to claim 2, characterized in that: A knob (1206) is fixedly provided on the top of the threaded rod (1203), and the knob (1206) is located above the cover (1201).

4. The connection device between the initial support anchor pipe and the I-beam of a tunnel according to claim 1, characterized in that: The mounting assembly (13) includes a fixing plate (1301) fixed to the bottom of the housing (2). Electric push rods (1302) are fixed on both sides of the fixing plate (1301). Connecting plates (1303) are fixed on the side of the two electric push rods (1302) away from the fixing plate (1301). The two connecting plates (1303) are distributed on both sides of the I-beam body (1).

5. The connection device between the initial support anchor pipe and the I-beam of a tunnel according to claim 1, characterized in that: The housing (2) is equipped with a power supply box (14) inside, and the power supply box (14) is equipped with a storage battery.

6. The connection device between the initial support anchor pipe and the I-beam of a tunnel according to claim 1, characterized in that: The shell (2) has grooves (15) on both sides of the top and bottom inner walls. Each fixed rod (6) has a slider (16) fixed on the side away from the threaded rod (4). The slider (16) is slidably connected to the groove (15).

7. The connection device between the initial support anchor pipe and the I-beam of a tunnel according to claim 1, characterized in that: The inner walls on both sides of the housing (2) are fixedly provided with bearings (17), and one end of each of the two threaded rods (4) is fixedly connected to the inner ring of the two bearings (17).

8. The connection device between the initial support anchor pipe and the I-beam of a tunnel according to claim 1, characterized in that: The front end of the housing (2) is hinged to a door panel (18), and a handle is fixedly provided at the front end of the door panel (18).

Images