Tunnel exit end plug plate assembly

Abstract

The utility model provides a tunnel outlet end plug plate assembly which comprises a plug plate and a supporting seat, and the right end of the supporting seat is fixedly connected with an outlet end tunnel formwork. A jacking mechanism is arranged on the supporting seat; an inclined supporting rod is rotationally hinged to the middle of the plug plate, the lower end of the inclined supporting rod abuts against the jacking mechanism, and the jacking mechanism jacks the plug plate to the upper portion of the positioning base by pressing the inclined supporting rod upwards. According to the design, the plug plate is fixed in an inclined supporting mode, the top face of the plug plate is designed to be a positioning face of the supplementary plugging formwork, the supporting rod with the adjustable positioning height is arranged on the plug plate, and the supplementary plugging formwork is placed in a positioning structure formed by the positioning face and the supporting rod; the plug plate is quick and convenient to plug and position, the installation of a supplementary plugging template is also facilitated, and the template supporting and plugging efficiency of the tunnel exit end is improved.

Description

Technical Field

[0001] The utility model relates to a tunnel trolley technology, in particular to a template system of a tunnel trolley, specifically a tunnel exit end plugging plate assembly. Background Art

[0002] The tunnel trolley formwork system is used for the lining construction of the tunnel vault and arch waist. When pouring the lining, the trolley formwork system is opened to form a pouring cavity between the tunnel, and then the gap between the two ends of the formwork system and the tunnel surface is sealed with a plug plate, and pouring construction can be carried out.

[0003] With the development of technology, plugging plates for blocking tunnel casting cavities have gradually formed a series of products. However, these series of plugging plates are mainly used to block the internal sections of tunnels. The plugging plates at the tunnel exit still use the previous process, that is, the arc-shaped plugging template is directly bolted to the tunnel trolley template system. When the plugging template is insufficient in size, the plugging template is supplemented and the supplemented plugging template is directly connected to the plugging plate with bolts. Calculated based on a plugging plate connected to a tunnel template and two plugging plates around it, and two connecting bolts are set at the connection point, the fixing of a plugging plate basically requires the installation and removal of six bolts, and the plugging plate is large in size. For the operator, it is more difficult to install and lift it. The more bolt connections, the more inconvenient the operation. In addition, the plugging template often needs to be supplemented, which further reduces the efficiency of formwork blocking at the tunnel exit. Summary of the invention

[0004] In view of the problems raised in the background technology, the purpose of the utility model is to provide a tunnel exit plugging plate assembly, which solves the problem of low formwork efficiency at the tunnel exit by changing the fixing method of the plugging plate and the supplementary plugging template.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tunnel exit plugging plate assembly, comprising a plugging plate and a support seat A, wherein the right end of the support seat A is fixedly connected to the exit tunnel template; a hinged ear plate is respectively provided on both sides of the left side surface of the lower part of the plugging plate, each hinged ear plate is rotatably hinged with a positioning seat, each positioning seat is fixedly connected to the exit tunnel template, and two positioning seats are respectively arranged on both sides of the support seat A; a tightening mechanism is provided on the support seat A; an oblique support rod is rotatably hinged at the middle part of the plugging plate, and the lower end of the oblique support rod abuts against the tightening mechanism, and the tightening mechanism tightens the plugging plate to the upper part of the positioning seat by pressing the oblique support rod upward.

[0007] The left end of the support seat A is provided with a mounting groove, and the tightening mechanism is arranged in the mounting groove.

[0008] The tightening mechanism includes a support seat B and a tightening bolt. The tightening bolt is inserted into the bottom wall of the mounting groove and is threadedly connected to the bottom wall of the mounting groove. One end of the support seat B is rotatably hinged to the two side walls of the mounting groove through a hinge shaft, and the other end of the support seat B is located above the tightening bolt.

[0009] The plug plate is composed of a vertical side plate and an arc-shaped top plate. The top plate is fixedly connected to the upper left side of the side plate. The bottom edge of the side plate is placed on the top surface of two positioning seats. A hinge seat is fixed in the middle of the left side of the side plate. The oblique support rod is rotatably hinged to the hinge seat.

[0010] The bottom surface of the top plate is fixedly connected with a support, and a vertical through slot is provided at the right end of the support. The left side wall of the through slot is flush with the left end surface of the top plate. A support rod is passed through the through slot, and the support rod is fixed in the through slot by a locking bolt installed on the side wall of the through slot.

[0011] The bottom edge of the side plate is arc-shaped, and correspondingly, the top surfaces of the two positioning seats are both arc-shaped.

[0012] The beneficial effects of the utility model: the design of the utility model adopts an oblique support method to fix the plugging plate, the top surface of the plugging plate is designed to be the positioning surface of the supplementary plugging template, and the plugging plate is provided with a support rod with adjustable positioning height, and the supplementary plugging template is placed in the positioning structure formed by the positioning surface and the support rod; the plugging positioning of the plugging plate is quick and convenient, and it is also convenient to install the supplementary plugging template, thereby improving the support and sealing efficiency of the tunnel exit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is the front view of the utility model.

[0015] Figure 3 It is a side view of the utility model.

[0016] Figure 4 It is a schematic diagram of the utility model in a non-working state.

[0017] In the figure: 1. plug plate, 2. support seat A, 3. hinged ear plate, 4. positioning seat, 5. oblique support rod, 6. mounting groove, 7. support seat B, 8. tightening bolt, 9. support, 10. support rod, 11. side plate, 12. top plate, 13. hinged seat, 14. locking bolt, 15. exit end tunnel template. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is described clearly and completely below in conjunction with the drawings of the specification. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-3 As shown, the utility model proposes a tunnel exit plugging plate assembly, including a plugging plate 1 and a support seat A2, the right end of the support seat A2 is fixedly connected to the exit tunnel template 15; a hinged ear plate 3 is respectively provided on both sides of the left side of the lower part of the plugging plate 1, each hinged ear plate 3 is rotatably hinged with a positioning seat 4, each positioning seat 4 is fixedly connected to the exit tunnel template 15, and two positioning seats 4 are respectively arranged on both sides of the support seat A2; a tightening mechanism is provided on the support seat A2; an oblique support rod 5 is rotatably hinged in the middle part of the plugging plate 1, and the lower end of the oblique support rod 5 abuts against the tightening mechanism, and the tightening mechanism tightens the plugging plate 1 to the upper part of the positioning seat 4 by pressing the oblique support rod 5 upward. In one embodiment of the utility model, the lower end of the oblique support rod 5 is set as an inclined surface.

[0020] The left end of the support seat A2 is provided with a mounting groove 6, and the tightening mechanism is arranged in the mounting groove 6.

[0021] The tightening mechanism includes a support seat B7 and a tightening bolt 8. The tightening bolt 8 is inserted into the bottom wall of the mounting groove 6 and is threadedly connected to the bottom wall of the mounting groove 6. The right end of the support seat B7 is rotatably hinged to the two side walls of the mounting groove 6 through a hinge shaft, and the left end of the support seat B7 is located above the tightening bolt 8. In one embodiment of the utility model, a baffle is provided on the left side of the upper surface of the support seat B7 to limit the oblique support rod 5 from slipping off.

[0022] The plugging plate 1 is composed of a vertical side plate 11 and an arc-shaped top plate 12. The top plate 12 is fixedly connected to the upper left side of the side plate 11. The bottom edge of the side plate is placed on the top surface of the two positioning seats 4. A hinge seat 13 is fixedly provided in the middle of the left side surface of the side plate 11. The oblique support rod 5 is rotatably hinged to the hinge seat 13. Specifically, both ends of the side plates of the plugging plate 1 are also provided with a plug-in plate structure, which belongs to the well-known technology and is used for overlapping between adjacent plugging plates, and will not be described here.

[0023] The bottom surface of the top plate 12 is fixedly connected with a support 9, and a vertical through slot is provided at the right end of the support 9, and the left side wall of the through slot is flush with the left end surface of the top plate 12. A support rod 10 is passed through the through slot, and the support rod 10 is fixed in the through slot by a locking bolt 14 installed on the side wall of the through slot. The function of this part is to adjust the height of the support rod 10 so that the support rod 10 has a larger positioning range to adapt to the height of the supplementary plugging template placed on the top plate 12.

[0024] The bottom edge of the side plate 11 is arc-shaped, and correspondingly, the top surfaces of the two positioning seats 4 are both arc-shaped.

[0025] The jacking bolt 8 and the locking bolt 14 are both hand-tightened bolts.

[0026] The principle of the utility model is as follows: the components of the utility model are pre-assembled on the tunnel template at the exit end. During normal construction in the tunnel, the utility model is in the following state: Figure 4 The state shown does not affect normal construction, nor does it affect the installation of conventional lifting plugging plates; when the pouring cavity at the tunnel exit is plugged, the lifting plugging plate cannot be used for plugging because there is no surrounding rock on the top of the tunnel exit. At this time, the utility model can be used. When using it, because the utility model has been installed on the tunnel template at the exit in advance, it is only necessary to push up the plugging plate 1, position the side plate 11 on the positioning seat 4, and then tighten it with the inclined support rod 5, adjust the height of the support rod 10, and it can be put into use.

[0027] The parts not described in detail in this utility model are prior art.

Claims

1. A tunnel exit plugging plate assembly, comprising a plugging plate (1) and a support seat A (2), wherein the right end of the support seat A (2) is fixedly connected to the exit tunnel template; wherein: A hinged ear plate (3) is respectively provided on both sides of the left side surface of the lower part of the plugging plate (1), each hinged ear plate (3) is rotatably hinged to a positioning seat (4), each positioning seat (4) is fixedly connected to the exit tunnel template, and two positioning seats (4) are respectively arranged on both sides of the support seat A (2); the support seat A (2) is provided with a tightening mechanism; the middle part of the plugging plate (1) is rotatably hinged to an inclined support rod (5), the lower end of the inclined support rod (5) abuts against the tightening mechanism, and the tightening mechanism presses the inclined support rod (5) upward to tighten the plugging plate (1) to the upper part of the positioning seat (4).

2. The tunnel exit plugging plate assembly according to claim 1 is characterized by: The support seat A (2) is provided with a mounting groove (6) at the left end, and the tightening mechanism is arranged in the mounting groove (6).

3. The tunnel exit plugging plate assembly according to claim 2 is characterized by: The tightening mechanism comprises a support seat B (7) and a tightening bolt (8), wherein the tightening bolt (8) is inserted into the bottom wall of the mounting groove (6) and is threadedly connected to the bottom wall of the mounting groove (6), one end of the support seat B (7) is rotatably hinged to the two side walls of the mounting groove (6) via a hinge shaft, and the other end of the support seat B (7) is located above the tightening bolt (8).

4. The tunnel exit plugging plate assembly according to claim 1 is characterized by: The plug plate (1) is composed of a vertical side plate (11) and an arc-shaped top plate (12), wherein the top plate (12) is fixedly connected to the upper left side of the side plate (11), and the bottom edge of the side plate is placed on the top surface of two positioning seats (4). A hinge seat (13) is fixedly provided in the middle of the left side surface of the side plate (11), and the oblique support rod (5) is rotatably hinged to the hinge seat (13).

5. The tunnel exit plugging plate assembly according to claim 4 is characterized by: The bottom surface of the top plate (12) is fixedly connected to a support (9), the right end of the support (9) is provided with a vertical through slot, the left side wall of the through slot is flush with the left end surface of the top plate (12), a support rod (10) is passed through the through slot, and the support rod (10) is fixed in the through slot by a locking bolt (14) installed on the side wall of the through slot.

6. The tunnel exit plugging plate assembly according to claim 4 is characterized by: The bottom edge of the side plate (11) is arc-shaped, and correspondingly, the top surfaces of the two positioning seats (4) are both arc-shaped.

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