Tunnel waist-locking pipe shed and steel support connecting device

Abstract

The utility model discloses a tunnel waist-locking pipe shed and steel support connecting device, which relates to the field of tunnel construction, and comprises an outer support top plate, the inner wall of the outer support top plate is connected with an inner support top plate, and the outer support top plate and the inner support top plate are arranged in a staggered manner. The part, extending out of the inner supporting top plate, of the side end of the outer supporting top plate is an extending connecting plate, and a gap between the upper end of the inner supporting top plate and the side end of the outer supporting top plate is a connecting groove. An outer supporting top plate and an inner supporting top plate are arranged and form a double-layer supporting top plate, a pipe shed can be supported more stably, the device is easy to install, a plurality of devices can be connected and combined conveniently, two adjacent devices can be connected and fixed together and fixed to the inner wall of a tunnel through anchor rods at the same time, and the pipe shed can be supported more stably. Therefore, the workload of workers can be reduced, the working efficiency of the workers is improved, and the construction efficiency of projects is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, and particularly relates to a connecting device for a tunnel lock waist pipe shed and a steel support. Background Technique

[0002] The tunnel lock waist pipe shed is an important support structure in tunnel construction, mainly used to strengthen the stability of the tunnel waist, prevent the collapse and deformation of the surrounding rock. This support structure is usually combined with steel supports or other reinforcement measures to form a complete support system.

[0003] However, for the existing pipe shed and steel support, they are usually connected by welding. The welding not only has a high labor intensity and low work efficiency, but also cannot connect and fix the support device to the inner wall of the tunnel. Therefore, additional anchor bolts need to be installed for fixation, resulting in low engineering construction efficiency and weak practicability.

[0004] To solve this technical problem, the utility model provides a connecting device for a tunnel lock waist pipe shed and a steel support. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a connecting device for a tunnel lock waist pipe shed and a steel support, which can effectively solve the problems mentioned in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A connecting device for a tunnel lock waist pipe shed and a steel support includes an outer support top plate. The inner wall of the outer support top plate is connected with an inner support top plate. The outer support top plate and the inner support top plate are arranged in a staggered manner. The part of the outer support top plate extending out of the inner support top plate at the side end is an extended connecting plate. The gap between the upper end of the inner support top plate and the side end of the outer support top plate is a connecting groove. The lower ends of the outer support top plate and the inner support top plate are connected with support columns. One side of the support column is connected with an outer protection plate, and the other side is connected with an inner protection plate. A first connection hole is opened in the outer protection plate, and a second connection hole is opened in the inner protection plate. Threaded rings are connected to the outer ends of the first connection hole and the second connection hole. Anchor bolts are threadedly connected in the threaded rings.

[0008] Preferably, the outer support top plate and the inner support top plate have the same length, and the size of the extended connecting plate can be connected in the connecting groove.

[0009] Preferably, the upper end of the outer protection plate is connected with the outer support top plate, the upper end of the inner protection plate is connected with the inner support top plate. The outer protection plate is located at the outer end of the inner protection plate, and the anchor bolts are located in the first connection hole and the second connection hole.

[0010] Preferably, a threaded groove is provided inside the threaded ring, a threaded groove is provided at the outer end of the anchor rod, a rotating head is provided at the side end of the anchor rod, and the rotating head is located at the side end of the inner protection plate.

[0011] Preferably, a pointed head is provided at the side end of the anchor rod, a grouting hole passage is provided inside the anchor rod and the rotating head, a slurry discharge hole is provided inside the anchor rod, and the slurry discharge hole is communicated with the grouting hole passage.

[0012] Preferably, a support rod is provided at the lower end of the inner support top plate. The support rod is in the shape of an arch bridge, and its two side ends are respectively connected to the two support columns. An insertion rod is connected inside the highest point at the center of the support rod, and an alarm is connected to the lower end of the insertion rod.

[0013] Preferably, a sleeve is connected to the lower end of the inner support top plate. The insertion rod is slidably connected inside the sleeve. A battery block is provided inside the sleeve. A plug is connected to the upper end of the insertion rod. A connector is connected inside the sleeve, and the connector can be connected to the plug.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, by providing an outer support top plate and an inner support top plate, a double-layer support top plate is formed together, which can support the pipe shed more stably. By providing an extension connecting plate and a connecting groove, the size of the extension connecting plate can be connected to the connecting groove, so that two of the devices can be combined and connected. At this time, the outer protection plates and the inner protection plates of the two will also be connected. At this time, the first connection holes and the second connection holes of the two will be correspondingly communicated. Insert the anchor rod into the first connection hole and the second connection hole and drill into the inner wall of the tunnel, so that the two devices can be fixed together, and at the same time, the two devices can be fixed on the inner wall of the tunnel. Therefore, the installation of this device is simple, it is convenient to connect and combine multiple devices, and the adjacent two devices can be connected and fixed together by the anchor rod and their positions can be fixed, so that the labor intensity of the staff can be reduced, their work efficiency can be improved, and the construction efficiency of the project can be improved.

[0016] In the utility model, by providing an alarm, when the pipe shed sinks downward and squeezes the outer support top plate and the inner support top plate, causing them to bend and deform, an alarm can be generated. Specifically, when the pipe shed sinks or sags, it will squeeze the outer support top plate and the inner support top plate at this time. When the two reach the compressive limit and bend, the inner support top plate will push the sleeve to move, so that the connector can be connected to the plug. For this reason, the battery block will transmit current to the alarm, so that the alarm can give an alarm, so as to remind the staff to evacuate or reinforce and repair in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of a connecting device for a tunnel lock waist pipe shed and a steel support of the utility model;

[0018] Figure 2 This is a schematic diagram of the lower end structure of a connecting device between a tunnel lock-waist pipe shed and a steel support of the present utility model;

[0019] Figure 3 This is a schematic sectional view of a bolt of a connecting device between a tunnel lock-waist pipe shed and a steel support of the present utility model;

[0020] Figure 4 This is a Figure 3 schematic diagram of area A of a connecting device between a tunnel lock-waist pipe shed and a steel support of the present utility model;

[0021] Figure 5 This is a schematic sectional view of a connecting device between a tunnel lock-waist pipe shed and a steel support of the present utility model;

[0022] Figure 6 This is a Figure 5 schematic diagram of area B of a connecting device between a tunnel lock-waist pipe shed and a steel support of the present utility model.

[0023] In the figure: 1. Outer support top plate; 2. Inner support top plate; 3. Extended connection plate; 4. Connection groove; 5. Support column; 6. Outer protection plate; 7. Inner protection plate; 8. First connection hole; 9. Second connection hole; 10. Threaded ring; 11. Bolt; 12. Rotating head; 13. Grouting duct; 14. Drainage hole; 15. Support rod; 16. Insert rod; 17. Alarm; 18. Sleeve; 19. Battery block; 20. Plug; 21. Connector. Detailed implementation manners

[0024] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the detailed implementation manners.

[0025] As Figures 1-6 shown, a connecting device between a tunnel lock-waist pipe shed and a steel support includes an outer support top plate 1. An inner support top plate 2 is connected to the inner wall of the outer support top plate 1. The outer support top plate 1 and the inner support top plate 2 have the same length. The outer support top plate 1 and the inner support top plate 2 are arranged in a staggered manner. The combination of the outer support top plate 1 and the inner support top plate 2, with a double-layer setting, can provide better stability. The part where the outer support top plate 1 extends out of the inner support top plate 2 is the extended connection plate 3. The gap between the upper end of the inner support top plate 2 and the side end of the outer support top plate 1 is the connection groove 4. The size of the extended connection plate 3 can be connected in the connection groove 4. In this way, when connecting two of these devices, the extended connection plate 3 of one device can be connected in the connection groove 4 of the other device.

[0026] The lower ends of the outer support roof plate 1 and the inner support roof plate 2 are connected to a support column 5. One side of the support column 5 is connected to an outer protection plate 6. The upper end of the outer protection plate 6 is connected to the outer support roof plate 1. The other side is connected to an inner protection plate 7. The upper end of the inner protection plate 7 is connected to the inner support roof plate 2. The outer protection plate 6 and the inner protection plate 7 are arranged alternately. A first connection hole 8 is formed in the outer protection plate 6, and a second connection hole 9 is formed in the inner protection plate 7. Threaded rings 10 are connected to the outer ends of the first connection hole 8 and the second connection hole 9. Threaded grooves are formed in the threaded rings 10. Anchor rods 11 are connected to the threaded rings 10 by internal threads. Threaded grooves are formed at the outer ends of the anchor rods 11. The anchor rods 11 are located in the first connection hole 8 and the second connection hole 9.

[0027] When two of these devices are connected together, the extension connecting plate 3 of one device is connected to the connection groove 4 of the other device. At this time, the outer protection plate 6 of one device will be connected to the inner protection plate 7 of the other device. At the same time, the first connection hole 8 of the outer protection plate 6 will be correspondingly communicated with the second connection hole 9 of the inner protection plate 7. Then, by inserting the anchor rod 11 into the threaded ring 10 at the side end and drilling into the inner wall of the tunnel, the two devices can be connected and fixed together, and at the same time, the two devices can be fixed to the inner wall of the tunnel.

[0028] A rotary head 12 is arranged at the side end of the anchor rod 11. The rotary head 12 is located at the side end of the inner protection plate 7. The rotary head 12 is used to facilitate the rotation of the anchor rod 11. A pointed head is arranged at the side end of the anchor rod 11, which can facilitate its drilling into the inner wall of the tunnel. A grouting hole passage 13 is formed in the anchor rod 11 and the rotary head 12. A slurry discharge hole 14 is formed in the anchor rod 11. The slurry discharge hole 14 is communicated with the grouting hole passage 13. By injecting a special setting agent into the grouting hole passage 13, it can be discharged from the slurry discharge hole 14 into the soil or rock around the anchor rod 11, thereby strengthening the tunnel itself.

[0029] A support rod 15 is arranged at the lower end of the inner support roof plate 2. The support rod 15 is in the shape of an arch bridge. Its two side ends are respectively connected to the two support columns 5. An insertion rod 16 is connected to the highest point at the center of the support rod 15. An alarm 17 is connected to the lower end of the insertion rod 16. A sleeve 18 is connected to the lower end of the inner support roof plate 2. The insertion rod 16 is slidably connected in the sleeve 18. A battery block 19 is arranged in the sleeve 18. A plug 20 is connected to the upper end of the insertion rod 16. A connection head 21 is connected in the sleeve 18. The connection head 21 can be connected to the plug 20. Wires are arranged in the insertion rod 16. The wires are respectively connected to the plug 20 and the alarm 17. The connection head 21 is connected to the battery block 19. When the connection head 21 is connected to the plug 20, the battery block 19 can supply current to the alarm 17 at this time, so that it can give an alarm.

[0030] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A connecting device for a tunnel waist-locking pipe shed and a steel support, comprising an outer support roof plate (1), characterized in that: The inner wall of the outer support top plate (1) is connected with an inner support top plate (2). The outer support top plate (1) and the inner support top plate (2) are arranged in a staggered manner. The part of the outer support top plate (1) extending out of the side end of the inner support top plate (2) is an extended connecting plate (3). The gap between the upper end of the inner support top plate (2) and the side end of the outer support top plate (1) is a connecting groove (4). The lower ends of the outer support top plate (1) and the inner support top plate (2) are connected with support columns (5). One side of the support column (5) is connected with an outer protection plate (6), and the other side is connected with an inner protection plate (7). A first connecting hole (8) is formed in the outer protection plate (6), and a second connecting hole (9) is formed in the inner protection plate (7). Threaded rings (10) are connected to the outer ends of the first connecting hole (8) and the second connecting hole (9). An anchor rod (11) is connected to the inner thread of the threaded ring (10).

2. The connecting device between the tunnel lock waist pipe shed and the steel support according to claim 1, characterized in that: The outer support top plate (1) and the inner support top plate (2) have the same length, and the size of the extended connecting plate (3) can be connected in the connecting groove (4).

3. The connecting device between the tunnel lock waist pipe shed and the steel support according to claim 1, wherein: The upper end of the outer protection plate (6) is connected with the outer support top plate (1), and the upper end of the inner protection plate (7) is connected with the inner support top plate (2). The outer protection plate (6) is located at the outer end of the inner protection plate (7), and the anchor rod (11) is located in the first connecting hole (8) and the second connecting hole (9).

4. A connecting device for a tunnel lock waist pipe shed and a steel support according to claim 1, characterized in that: Thread grooves are formed in the threaded ring (10), and thread grooves are formed in the outer end of the anchor rod (11). A rotating head (12) is arranged on the side end of the anchor rod (11), and the rotating head (12) is located at the side end of the inner protection plate (7).

5. The tunnel waist-locking pipe shed and steel support connection device according to claim 4, characterized in that: A pointed head is arranged on the side end of the anchor rod (11). Grouting channels (13) are formed in the anchor rod (11) and the rotating head (12), and a slurry discharge hole (14) is formed in the anchor rod (11). The slurry discharge hole (14) is communicated with the grouting channel (13).

6. The connecting device between the tunnel lock waist pipe shed and the steel support according to claim 1, characterized in that: A support rod (15) is arranged at the lower end of the inner support top plate (2). The support rod (15) is in the shape of an arch bridge, and its two side ends are respectively connected with the two support columns (5). A plug rod (16) is connected inside the highest point at the center of the support rod (15), and an alarm (17) is connected to the lower end of the plug rod (16).

7. The connecting device between the tunnel lock waist pipe shed and the steel support according to claim 6, characterized in that: A sleeve (18) is connected to the lower end of the inner support top plate (2). The plug rod (16) is slidably connected in the sleeve (18). A battery block (19) is arranged in the sleeve (18). A plug (20) is connected to the upper end of the plug rod (16), and a connecting head (21) is connected in the sleeve (18). The connecting head (21) can be connected with the plug (20).

Images