Safety support for tunnel construction

Abstract

The utility model discloses a safety support for tunnel construction, which comprises an arc-shaped support, auxiliary supports are arranged at two ends of the arc-shaped support, and U-shaped beam legs are fixedly connected to the outer surfaces of the arc-shaped support and the auxiliary supports. A splicing assembly is arranged between the arc-shaped support and the auxiliary support, a penetrating hole matched with the splicing assembly is formed in the outer surface of the auxiliary support, and a drainage assembly is arranged at the bottom end of the auxiliary support. When water flows to the bottom of the safety support, the water is drained into the drainage box through the drainage plate, drained into the drainage block through the drainage hole, drained into the drainage opening through the drainage block and led out of the base through the drainage pipe. The drainage capacity of the auxiliary support is improved through cooperation of the drainage plate, the drainage box, the drainage hole, the base and the drainage pipe, it is guaranteed that accumulated water can be rapidly drained away, the erosion degree of water to the auxiliary support is reduced, and the service life of the auxiliary support is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to safety support technical field especially relates to a safety support for tunnel construction. BACKGROUND

[0002] Safety support is a kind of structural support device widely used in engineering construction, especially in underground engineering such as tunnel, mine and some high slope, deep foundation pit etc., mainly used for guaranteeing construction safety, stabilizing engineering structure and facilitating construction operation, in tunnel construction, safety support is mainly used for supporting surrounding rock, ensuring construction safety and operation space and facilitating construction operation.

[0003] During use, water in tunnel generally flows to the bottom of support, as the bottom of support is in contact with ground water for a long time, it is easy to be soaked and eroded by water, at the same time, the uneven ground of tunnel may cause that accumulated water cannot be drained in time, further aggravate the erosion degree, thereby reduce the service life of safety support, therefore, the safety support for tunnel construction is designed to prolong the service life of safety support. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a safety support for tunnel construction.

[0005] The safety support for tunnel construction provided by the utility model, comprising arc support, the both ends of arc support are provided with vice support, the outer surfaces of arc support and vice support are all fixedly connected with U-shaped beam leg;

[0006] The arc support and vice support are provided with splicing assembly, the outer surface of vice support is provided with penetrating hole matched with splicing assembly, the bottom end of vice support is provided with drainage assembly.

[0007] Further, the splicing assembly comprises splicing seat fixedly connected to the outer surface of vice support and splicing block fixedly connected to the outer surface of arc support, the top end of splicing seat is provided with splicing groove, the outer surfaces of splicing seat and splicing block are all provided with splicing hole consistent with penetrating hole.

[0008] Further, the drainage assembly comprises base fixedly connected to the bottom end of vice support, the top end of base is fixedly connected with baffle, the top end of base is fixedly connected with drainage plate in a symmetrical mode, and the baffle is arranged between the two drainage plates.

[0009] Further, the both sides of base are fixedly connected with drainage box, and the inside of drainage box is provided with drainage hole.

[0010] Further, the bottom end of the drainage box is fixedly connected with a drainage block, an import cavity is arranged in the drainage block, an import hole is arranged at the top end of the drainage block, the import hole is communicated with the drainage hole, the import hole is communicated with the import cavity, and drainage ports are arranged on the two sides of the base and communicated with the import cavity.

[0011] Further, an internal drainage cavity is arranged in the base, the drainage cavity is communicated with the drainage port, and a drainage pipe is fixedly arranged on the outer surface of the base and communicated with the drainage cavity.

[0012] Further, the inner wall of the drainage cavity is inclined, and the drainage pipe is located at the lower side of the inner wall of the drainage cavity.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] When the arc-shaped support and the auxiliary support are in the waiting assembly state without using the safety support, the user fixes the arc-shaped support and the auxiliary support together through the splicing assembly when the user needs to use the safety support; when the water flows to the bottom of the safety support, the water is drained to the inside of the drainage box through the drainage plate, the water is drained to the inside of the drainage block through the drainage hole, the water is drained to the inside of the drainage port through the drainage block, the water is drained out of the inside of the base through the drainage pipe, the drainage capacity of the auxiliary support is improved through the cooperation between the drainage plate, the drainage box, the drainage hole, the base and the drainage pipe, and the accumulated water can be quickly drained away, so that the bottom end of the auxiliary support is prevented from being eroded by water for a long time, the erosion degree of the auxiliary support by water is reduced, and the service life of the auxiliary support is prolonged.

[0015] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model. Other features of the utility model will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] Other features, objects and advantages of the utility model will become more apparent through reading the detailed description of the non-limiting embodiments made by referring to the following drawings:

[0017] Figure 1 It is a structural schematic view of the safety support for tunnel construction;

[0018] Figure 2 It is a partial structural schematic view of the safety support for tunnel construction;

[0019] Figure 3 It is an enlarged structural schematic view of the position A in the utility model Figure 2

[0020] Figure 4 It is an enlarged structural schematic view of the position A in the utility model​Figure 2 Enlarged structural schematic view at B;

[0021] Figure 5 Partial structural schematic view of the drainage assembly;

[0022] Figure 6 Partial structural schematic view of the splice assembly from the side;

[0023] Figure 7 Partial structural schematic view of the drainage assembly from the side.

[0024] Reference numerals in the drawings:

[0025] 1, arc-shaped support; 2, auxiliary support; 3, splice assembly; 4, U-shaped beam leg; 5, drainage assembly;

[0026] 31, splice seat; 32, splice hole; 33, splice block;

[0027] 51, base; 52, baffle; 53, drainage plate; 54, drainage box; 55, drainage hole; 56, drainage block; 57, drainage port; 58, drainage pipe. DETAILED DESCRIPTION

[0028] The utility model will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description.

[0029] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] Please refer to Figures 1-7 The embodiment of the utility model provides a kind of safety support for tunnel construction, including arc-shaped support 1, arc-shaped support 1 both ends are provided with auxiliary support 2, the outer surface of arc-shaped support 1 and auxiliary support 2 is all fixedly connected with U-shaped beam leg 4;

[0031] Arc-shaped support 1 and auxiliary support 2 are provided with splice assembly 3, the outer surface of auxiliary support 2 is provided with the through hole that is compatible with splice assembly 3, and the bottom end of auxiliary support 2 is provided with drainage assembly 5.

[0032] In the embodiment, when safety support is not used, arc-shaped support 1 and auxiliary support 2 are in the state of being assembled, which is convenient for transportation, when user needs to use safety support, user fixes arc-shaped support 1 and auxiliary support 2 together by splice assembly 3, shortens the assembly time of safety support.

[0033] After assembly, the stability of the assembled safety support can be improved by the U-shaped beam legs 4 at different positions on the arc-shaped support 1 and the auxiliary support 2.

[0034] When water flows to the bottom of the safety support, the water is guided into the drainage box 54 by the drainage plate 53, into the drainage block 56 by the drainage hole 55, into the drainage port 57 by the drainage block 56, and out of the base 51 by the drainage pipe 58. The cooperation between the drainage plate 53, the drainage box 54, the drainage hole 55, the base 51, and the drainage pipe 58 improves the drainage capacity of the auxiliary support 2, ensures that the accumulated water can be quickly drained away, thereby avoiding the bottom end of the auxiliary support 2 from being eroded by water for a long time, reducing the erosion degree of the auxiliary support 2 by water, and prolonging the service life of the auxiliary support 2.

[0035] In a preferred embodiment, as shown in Figure 2 , Figure 3 and Figure 6 , the splicing assembly 3 includes a splicing seat 31 fixedly connected to the outer surface of the auxiliary support 2 and a splicing block 33 fixedly connected to the outer surface of the arc-shaped support 1. The top end of the splicing seat 31 is provided with a splicing groove, and the outer surfaces of the splicing seat 31 and the splicing block 33 are provided with splicing holes 32 consistent with the penetration holes.

[0036] In this embodiment, when the safety support needs to be used, the splicing block 33 on the outer surface of the arc-shaped support 1 is inserted into the splicing groove at the top end of the splicing seat 31, so that the splicing seat 31 and the penetration hole on the outer surface of the auxiliary support 2 are on the same horizontal line. Then, the bolts are sequentially inserted through the splicing holes 32 and the penetration holes, and the two ends of the bolts are fixed by the nuts. This assembly method is beneficial to reducing the volume of the safety support during transportation, thereby making the safety support easy to carry. Moreover, this method can quickly assemble the arc-shaped support 1 and the auxiliary support 2, thereby shortening the assembly time of the safety support.

[0037] In a preferred embodiment, as shown in Figure 4 , Figure 5 and Figure 7As shown, the drainage assembly 5 includes a base 51 fixedly connected to the bottom end of the auxiliary support 2, the top end of the base 51 is fixedly connected with a baffle 52, the top end of the base 51 is fixedly connected with two drainage plates 53, the baffle 52 is arranged between the two drainage plates 53, the two sides of the base 51 are fixedly connected with drainage boxes 54, the inside of the drainage box 54 is provided with a drainage hole 55, the bottom end of the drainage box 54 is fixedly connected with a drainage block 56, the inside of the drainage block 56 is provided with an import cavity, the top end of the drainage block 56 is provided with an import hole, the import hole is in communication with the drainage hole 55, the import hole is in communication with the import cavity, the two sides of the base 51 are provided with drainage ports 57, the drainage ports 57 are in communication with the import cavity, the inside of the base 51 is provided with a drainage cavity, the drainage cavity is in communication with the drainage ports 57, the outer surface of the base 51 is fixedly provided with a drainage pipe 58, the drainage pipe 58 is in communication with the drainage cavity.

[0038] In this embodiment, when the water flows to the bottom of the safety support, the water is drained to the inside of the drainage box 54 through the drainage plate 53, the water is drained to the inside of the drainage block 56 through the drainage hole 55, the water is drained to the inside of the drainage port 57 through the drainage block 56, the water is drained out of the inside of the base 51 through the drainage pipe 58, the drainage capacity of the auxiliary support 2 is improved through the cooperation between the drainage plate 53, the drainage box 54, the drainage hole 55, the base 51 and the drainage pipe 58, and it is ensured that the accumulated water can be quickly drained away, so as to avoid that the bottom end of the auxiliary support 2 is eroded by water for a long time, reduce the erosion degree of the auxiliary support 2 by water, and prolong the service life of the auxiliary support 2.

[0039] The accumulated water can be filtered through the drainage hole 55, the particulate matters in the accumulated water are blocked from entering the drainage cavity in the base 51, the drainage pipe 58 is prevented from being blocked, and it is ensured that the accumulated water is smoothly drained.

[0040] In a preferred embodiment, the inner wall of the drainage cavity is inclined, and the drainage pipe 58 is located at the lower side of the inner wall of the drainage cavity, which is beneficial to control the direction of the accumulated water in the drainage cavity, so that the accumulated water is easily drained out through the drainage pipe 58.

[0041] It should be noted that: the base 51 has a relatively simple structure and low material cost, while the auxiliary support 2 often has a complex structure and involves many parts and special processes, and the cost is high, so the cost of replacing the base 51 is much lower than that of replacing the auxiliary support 2; in terms of operation convenience, the base 51 is usually installed at the bottom of the auxiliary support 2 and is in an exposed position, so it can be quickly disassembled and installed with simple tools when replaced; the auxiliary support 2 is closely connected with other structures, and many surrounding parts need to be removed before disassembly, which is complicated and time-consuming; therefore, it is more cost-effective and convenient to replace the base 51 than to replace the auxiliary support 2.

[0042] In the description of the present specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0043] In the description of the present specification, the description of the terms "one embodiment", "some embodiments" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The above is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A safety bracket for tunnel construction, characterized by, Including arc support (1), both ends of arc support (1) are provided with vice support (2), the outer surface of arc support (1) and vice support (2) is fixedly connected with U-shaped beam leg (4); The arc support (1) and vice support (2) are provided with splicing assembly (3), the outer surface of vice support (2) is provided with a through hole matched with splicing assembly (3), and the bottom end of vice support (2) is provided with drainage assembly (5).

2. The safety bracket for tunnel construction according to claim 1, wherein The splicing assembly (3) includes a splicing seat (31) fixedly connected to the outer surface of the vice support (2) and a splicing block (33) fixedly connected to the outer surface of the arc support (1), the top end of the splicing seat (31) is provided with a splicing groove, and the outer surfaces of the splicing seat (31) and the splicing block (33) are provided with splicing holes (32) consistent with the through hole.

3. The safety bracket for tunnel construction according to claim 1, wherein The drainage assembly (5) includes a base (51) fixedly connected to the bottom end of the vice support (2), the top end of the base (51) is fixedly connected with a baffle (52), the top end of the base (51) is fixedly connected with two drainage plates (53) symmetrically, and the baffle (52) is arranged between the two drainage plates (53).

4. The safety bracket for tunnel construction according to claim 3, wherein The two sides of the base (51) are fixedly connected with drainage boxes (54), and the inside of the drainage box (54) is provided with drainage holes (55).

5. The safety bracket for tunnel construction according to claim 4, wherein The bottom end of the drainage box (54) is fixedly connected with a drainage block (56), the inside of the drainage block (56) is provided with an import cavity, the top end of the drainage block (56) is provided with an import hole, the import hole is in communication with the drainage hole (55), the import hole is in communication with the import cavity, the two sides of the base (51) are provided with drainage ports (57), and the drainage ports (57) are in communication with the import cavity.

6. The safety bracket for tunnel construction according to claim 5, wherein The inside of the base (51) is provided with a drainage cavity, the drainage cavity is in communication with the drainage port (57), the outer surface of the base (51) is fixedly provided with a drainage tube (58), and the drainage tube (58) is in communication with the drainage cavity.

7. The safety bracket for tunnel construction according to claim 6, wherein The inner wall of the drainage cavity is inclined, and the drainage tube (58) is located at the lower side of the inner wall of the drainage cavity.

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