Tunnel meshed prefabricated slab lining structure

Abstract

The application belongs to the technical field of tunnel lining structure, and particularly relates to a tunnel gridding prefabricated plate lining structure, which aims at the problems of inconvenient assembly and troublesome support of the existing tunnel lining structure, and proposes the following scheme, which comprises an inner lining plate, a concrete layer is arranged on the inner lining plate, a gravel layer is arranged on the concrete layer, a reinforcing net is arranged in the concrete layer, two adjusting seats, two square seats and two clamping seats are arranged on the inner lining plate, shaft rods are rotatably installed on the two adjusting seats, adjusting handles are fixedly installed on the two shaft rods, first bevel gears are fixedly installed on the two shaft rods, second bevel gears are meshed with the two first bevel gears, clamping mechanisms are arranged on the two square seats and the two clamping seats, and the clamping mechanisms comprise two adjusting screws. The application is convenient for disassembling and assembling the prefabricated plate, can quickly support the construction of tunnels with different heights, is widely applicable, simple to use and convenient to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel lining structure, and particularly relates to a tunnel gridding prefabricated plate lining structure. BACKGROUND

[0002] Tunnel engineering is a series of construction work for building underground, underwater and mountain buildings (laying railway and building highway), and is mainly divided into tunnel planning, surveying, design, through control surveying and construction work. The tunnel can be divided into mountain tunnel, underwater tunnel and city tunnel according to the location, and the mountain tunnel is the most built. The lining mechanism needs to be used for supporting when the tunnel is built. The existing lining mechanism is inconvenient to assemble, and needs other supporting objects for supporting, so that the use is inconvenient. Therefore, the tunnel gridding prefabricated plate lining structure is provided. SUMMARY

[0003] The tunnel gridding prefabricated plate lining structure aims at solving the inconvenient assembly and supporting trouble in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical scheme is adopted as follows.

[0005] The utility model provides a tunnel gridding prefabricated board lining structure, including the lining board, be provided with concrete layer on the lining board, be provided with gravel layer on the concrete layer, be provided with reinforcing net in the concrete layer, be provided with two adjusting seat, two square seat and two clamping seat on the lining board, two adjusting seat all rotatoryly installed with axle rod, two axle rods all fixedly installed with adjusting handle, two axle rods all fixedly installed with first bevel gear, two first bevel gears all mesh with second bevel gear, two square seat and two clamping seat are provided with clamping mechanism, the clamping mechanism includes two adjusting screw rod, two adjusting screw rod with two second bevel gear fixed connection, two adjusting screw rod all are connected with the spout pipe of screw thread, two clamping seat are opened in the insertion hole, two spout pipes and two insertion holes are mutually matched, two clamping seat all are opened in the vertical groove, two vertical grooves all are provided with clamping spring, two clamping springs all are fixedly connected with trapezoidal pin, two spout pipes all are opened in the pin hole, two trapezoidal pins and two pin holes are mutually matched, two vertical pipes are fixedly installed on the lining board, and the unlocking mechanism is arranged in the vertical pipe, and the unlocking mechanism includes two pull rings, two pull rings all rotatoryly installed with disc, two discs and two vertical pipes are mutually matched, two discs all are provided with pull rope, two pull ropes one end with two trapezoidal pin fixed connection, two vertical pipes and two vertical grooves all are provided with two pulleys, four pulleys are connected with two pull ropes respectively, two rotating seats are rotatoryly installed on the lining board, two rotating seats all rotatoryly installed with support pipe, two support pipes are provided with adjusting fixed mechanism, the adjusting fixed mechanism includes two support screw rods, two support screw rods are connected with two support pipes of screw thread, two support screw rods all rotatoryly installed with groove seat, two groove seats are fixedly installed with bottom disc, two bottom discs all are opened in a plurality of threaded holes, a plurality of threaded holes all are connected with fixed cone of screw thread, two support pipes all are provided with hole seat, two hole seats are provided with same bolt, the bolt is provided with nut, two support pipes all are provided with backing plate, and two backing plates are mutually matched.

[0006] Preferably, the lining board is provided with an inner edge, and the gravel layer is provided with a convex edge, the inner edge and the convex edge are matched with each other.

[0007] Preferably, the two square seats are both provided with square holes, and the square holes are both provided with square rails, and the square rails are slidably connected with the two spout pipes.

[0008] Preferably, the two support screw rods are both rotatoryly installed with rotating shafts, and the rotating shafts are fixedly connected with the two groove seats.

[0009] Preferably, the two vertical grooves are both provided with vertical rails, and the vertical rails are slidably connected with the two trapezoidal pins.

[0010] Preferably, the two vertical pipes are both provided with clamping grooves, and the clamping grooves are clamped with the two discs.

[0011] Preferably, each of the two adjusting seats is equipped with a bearing, and the inner rings of the two bearings are fixedly connected to the two shafts. All the rotating parts mentioned above are restricted by the cooperation of bearings, shafts, or bearings and shafts to ensure that all parts can rotate stably in a specific position.

[0012] The beneficial effects of the precast slab lining structure for a tunnel grid in this invention are as follows: the combination of adjusting screw, insert, insertion hole, snap-fit ​​spring and trapezoidal pin in the snap-fit ​​mechanism can quickly snap two precast slabs together, which is convenient for supporting the tunnel; the setting of the unlocking mechanism can quickly separate the two precast slabs, which is convenient for disassembly and assembly; the setting of the adjusting and fixing mechanism can support the precast slabs, which is convenient for tunnel construction, and can support tunnels at different heights, which has wide applicability.

[0013] This invention facilitates the assembly and disassembly of precast slabs, enabling rapid support for the construction of tunnels at different heights. It has wide applicability, is simple to use, and is easy to operate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a tunnel grid-based precast slab lining structure proposed in this invention;

[0015] Figure 2 This is a schematic diagram of the splicing main structure of a tunnel grid precast slab lining structure proposed in this invention;

[0016] Figure 3 This is a side sectional view of a tunnel grid precast slab lining structure proposed in this invention.

[0017] Figure 4 This is a schematic diagram of the overhead section of a tunnel grid precast slab lining structure proposed in this invention;

[0018] Figure 5 This invention proposes a tunnel grid-based precast slab lining structure. Figure 2 A magnified structural diagram of part A in the middle.

[0019] In the diagram: 1. Lining plate; 2. Concrete layer; 3. Gravel layer; 4. Reinforcing mesh; 5. Adjusting seat; 6. Square seat; 7. Clip seat; 8. Adjusting handle; 9. Shaft; 10. First bevel gear; 11. Second bevel gear; 12. Adjusting screw; 13. Insert tube; 14. Insertion hole; 15. Vertical groove; 16. Snap spring; 17. Trapezoidal pin; 18. Pin hole; 19. Vertical tube; 20. Pull ring; 21. Disc; 22. Pull rope; 23. Pulley; 24. Rotary seat; 25. Support tube; 26. Support screw; 27. Groove seat; 28. Base plate; 29. ​​Threaded hole; 30. Fixed cone; 31. Hole seat; 32. Bolt; 33. Nut; 34. Washer plate; 35. Protruding edge; 36. Inner edge; 37. Square hole. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example 1

[0021] Reference Figures 1-3 A precast grid lining structure for tunnels includes an inner lining plate 1, a concrete layer 2 on the inner lining plate 1, a gravel layer 3 on the concrete layer 2, a reinforcing mesh 4 inside the concrete layer 2, two adjusting seats 5, two square seats 6, and two locking seats 7 on the inner lining plate 1. A shaft 9 is rotatably mounted on each of the two adjusting seats 5, and an adjusting handle 8 is fixedly mounted on each of the two shafts 9. A first bevel gear 10 is fixedly mounted on each of the two shafts 9, and a second bevel gear 11 meshes with each of the two first bevel gears 10. The two square seats 6 and two... Each card holder 7 is equipped with a snap-fit ​​mechanism. Two vertical tubes 19 are fixedly installed on the inner liner plate 1. An unlocking mechanism is installed inside the two vertical tubes 19. Two rotating seats 24 are rotatably installed on the inner liner plate 1. Support tubes 25 are rotatably installed on each of the two rotating seats 24. Adjustment and fixing mechanisms are provided on the two support tubes 25. Hole seats 31 are provided on each of the two support tubes 25. The same bolt 32 is provided on each of the two hole seats 31. Nuts 33 are provided on the bolt 32. Washers 34 are provided on each of the two support tubes 25. The two washers 34 cooperate with each other.

[0022] Reference Figure 4 The snap-fit ​​mechanism includes two adjusting screws 12, which are fixedly connected to two second bevel gears 11. Each adjusting screw 12 is threaded with a tube 13. Each snap-fit ​​seat 7 has a socket 14, which cooperates with the two sockets 14. Each snap-fit ​​seat 7 has a vertical groove 15, and each vertical groove 15 has a snap-fit ​​spring 16. Each snap-fit ​​spring 16 is fixedly connected with a trapezoidal pin 17. Each tube 13 has a pin hole 18, which cooperates with the two pin holes 18.

[0023] Reference Figures 2-4 The unlocking mechanism includes two pull rings 20, each with a disc 21 rotatably mounted on it. The two discs 21 cooperate with two vertical tubes 19. Each disc 21 is equipped with a pull rope 22, one end of which is fixedly connected to two trapezoidal pins 17. Each of the two vertical tubes 19 and the two vertical grooves 15 is equipped with two pulleys 23, and the four pulleys 23 are movably connected to the two pull ropes 22 respectively.

[0024] Reference Figure 5The adjusting and fixing mechanism includes two support screws 26, which are threadedly connected to two support tubes 25. Each of the two support screws 26 is rotatably mounted with a slot seat 27, and a base plate 28 is fixedly mounted on each of the two slot seats 27. Each of the two base plates 28 has multiple threaded holes 29, and a fixing cone 30 is threadedly connected to each of the multiple threaded holes 29.

[0025] Reference Figure 3 The inner lining plate 1 is provided with an inner edge 36, and the gravel layer 3 is provided with a raised edge 35. The inner edge 36 and the raised edge 35 cooperate with each other to increase the sealing performance after splicing.

[0026] Reference Figure 4 Both square bases 6 have square holes 37, and both square holes 37 have square rails. The two square rails are slidably connected to the two insertion tubes 13. The square rails enable the insertion tubes 13 to slide stably in a fixed position without rotating.

[0027] Reference Figure 4 Each of the two vertical grooves 15 is equipped with a vertical rail, which is slidably connected to two trapezoidal pins 17. The vertical rails enable the trapezoidal pins 17 to slide stably in a fixed position.

[0028] Reference Figure 4 Each of the two adjusting seats 5 is equipped with a bearing, and the inner rings of the two bearings are fixedly connected to the two shafts 9. The bearings enable the shafts 9 to rotate stably in a fixed position.

[0029] Reference Figure 4 Each of the two vertical tubes 19 is provided with a slot, which engages with the two discs 21. The slots allow the discs 21 to be stably secured on the vertical tubes 19.

[0030] Reference Figure 5 Two rotating shafts are rotatably mounted on the two support screws 26. The two rotating shafts are fixedly connected to the two slot seats 27. The setting of the rotating shafts enables the slot seats 27 to rotate stably on the support screws 26, which facilitates support at different angles.

[0031] In this embodiment, during tunnel construction, two precast slabs are spliced ​​together, so that the inner edge 36 and the convex edge 35 are stably engaged. Rotating the adjusting handle 8 drives the shaft 9 to rotate, which in turn drives the first bevel gear 10 to rotate. The first bevel gear 10 drives the second bevel gear 11 to rotate, and the second bevel gear 11 drives the adjusting screw 12 to rotate, causing the insertion tube 13 to slide and be inserted into the insertion hole 14. At this time, the insertion tube 13 will squeeze the trapezoidal pin 17. When the pin hole 18 corresponds to the trapezoidal pin 17, under the elastic force of the locking spring 16, the trapezoidal pin 17 is inserted into the pin hole 18, fixing the insertion tube 13. Fix the two precast slabs, then rotate the support tube 25 to a suitable angle, rotate the support screw 26 to ground the base 28, and then rotate the fixing cone 30 to insert it into the ground for fixation. If the two support tubes 25 need to be cross-supported, the bolt 32 can be inserted into the hole seat 31 on the support tube 25 and fixed with the nut 33 to increase the stability of the support. If it needs to be removed, release the support of the support tube 25, then pull the pull ring 20, pull out the trapezoidal pin 17 through the pull rope 22, reverse the adjusting handle 8, and the insertion tube 13 can be pulled out, thereby allowing the two precast slabs to be disassembled for easy reuse. Example 2

[0032] The difference between this embodiment and Embodiment 1 is that a sealing gasket is provided on the convex edge 35, and a clip is provided on the inner lining plate 1. The clip has a through hole. When transporting the precast slab, the support tube 25 can be rotated to a position parallel to the inner lining plate 1 and the support tube 25 can be inserted into the clip. Then, it can be fixed by bolts 32 and nuts 33 to prevent the support tube 25 from shaking and facilitate transportation. When splicing, the sealing gasket can increase the sealing at the splice of the two precast slabs, prevent water leakage, and improve safety.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tunnel grid-based precast slab lining structure, comprising an inner lining slab (1), characterized in that, A concrete layer (2) is provided on the inner lining plate (1), a gravel layer (3) is provided on the concrete layer (2), and a reinforcing mesh (4) is provided inside the concrete layer (2). Two adjusting seats (5), two square seats (6), and two clamping seats (7) are provided on the inner lining plate (1). A shaft (9) is rotatably installed on each of the two adjusting seats (5), and an adjusting handle (8) is fixedly installed on each of the two shafts (9). A first bevel gear (10) is fixedly installed on each of the two shafts (9), and a second bevel gear (11) meshes with each of the two first bevel gears (10). A clamping mechanism is provided on each of the two square seats (6) and the two clamping seats (7). Two vertical pipes (19) are fixedly installed on the inner lining plate (1), and an unlocking mechanism is provided inside each of the two vertical pipes (19). Two rotating seats (24) are rotatably installed on the inner lining plate (1), and a support pipe (25) is rotatably installed on each of the two rotating seats (24). An adjusting and fixing mechanism is provided on each of the two support pipes (25). The structure includes two support tubes (25) each with a hole seat (31), and the same bolt (32) on each hole seat (31). A nut (33) is provided on the bolt (32). A washer (34) is provided on each of the two support tubes (25), and the two washer (34) cooperate with each other. The snap-fit ​​mechanism includes two adjusting screws (12), which are fixedly connected to two second bevel gears (11). Both adjusting screws (12) are threaded. The device is connected with a tube (13), and two card holders (7) are provided with insertion holes (14). The two tubes (13) and the two insertion holes (14) cooperate with each other. The two card holders (7) are provided with vertical grooves (15). The two vertical grooves (15) are provided with snap-fit ​​springs (16). The two snap-fit ​​springs (16) are fixedly connected with trapezoidal pins (17). The two tubes (13) are provided with pin holes (18). The two trapezoidal pins (17) and the two pin holes (18) cooperate with each other.

2. The tunnel grid-based precast slab lining structure according to claim 1, characterized in that, The unlocking mechanism includes two pull rings (20), each of which is rotatably mounted with a disc (21). The two discs (21) cooperate with two vertical tubes (19). Each of the two discs (21) is provided with a pull rope (22). One end of each pull rope (22) is fixedly connected to two trapezoidal pins (17). Each of the two vertical tubes (19) and the two vertical grooves (15) is provided with two pulleys (23). The four pulleys (23) are movably connected to the two pull ropes (22) respectively.

3. The tunnel grid-based precast slab lining structure according to claim 1, characterized in that, The adjustment and fixing mechanism includes two support screws (26), which are threadedly connected to two support tubes (25). Each of the two support screws (26) has a slot seat (27) rotatably mounted on it. Each of the two slot seats (27) has a base plate (28) fixedly mounted on it. Each of the two base plates (28) has multiple threaded holes (29), and each of the multiple threaded holes (29) has a fixed cone (30) threadedly connected to it.

4. The tunnel grid-based precast slab lining structure according to claim 1, characterized in that, The inner lining plate (1) is provided with an inner edge (36), and the gravel layer (3) is provided with a convex edge (35). The inner edge (36) and the convex edge (35) cooperate with each other.

5. A tunnel grid-based precast slab lining structure according to claim 1, characterized in that, Both square bases (6) have square holes (37) and square rails are installed in both square holes (37). The two square rails are slidably connected to the two insertion tubes (13).

6. The tunnel grid-based precast slab lining structure according to claim 1, characterized in that, Vertical rails are provided in both vertical slots (15), and the two vertical rails are slidably connected to two trapezoidal pins (17).

7. The tunnel grid-based precast slab lining structure according to claim 1, characterized in that, Bearings are provided on both adjusting seats (5), and the inner rings of the two bearings are fixedly connected to the two shafts (9).

8. A tunnel grid-based precast slab lining structure according to claim 2, characterized in that, Both vertical tubes (19) are provided with slots, and the two slots are engaged with the two discs (21).

9. A tunnel grid-based precast slab lining structure according to claim 3, characterized in that, Two support screws (26) are each rotatably mounted with a rotating shaft, and the two rotating shafts are fixedly connected to two slot seats (27).

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