Unsymmetrical pressure tunnel portal protection structure

Abstract

The utility model discloses an unsymmetrical pressure tunnel portal protection structure which comprises an unsymmetrical pressure tunnel portal, a protection ring is arranged on the front face of the unsymmetrical pressure tunnel portal, fixing pipes are fixedly connected to the two sides of the top of the unsymmetrical pressure tunnel portal, and fixing rings are fixedly connected to the two sides of the protection ring. The fixing ring is arranged on the fixing pipe in a sleeving mode, so that the protection ring is arranged on the hole in a sleeving mode, then in use, the threaded sleeve is rotated, the threaded sleeve rotates to drive the threaded rod to move downwards, the threaded rod moves downwards to drive the abutting disc to move downwards, the abutting disc moves downwards to abut against the clamping rod, the clamping rod moves towards the outer side, and the clamping rod is clamped at the top of the fixing ring; according to the unsymmetrical pressure tunnel portal safety protection device, the fixing rings can be limited, the unsymmetrical pressure tunnel portal achieves the safety protection effect, an existing mode that the unsymmetrical pressure tunnel portal is not protected is replaced, accordingly, safety protection can be conducted on the unsymmetrical pressure tunnel portal, broken stones can be blocked and protected, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of bias tunnel openings, in particular to a protection structure for bias tunnel openings. Background Technique

[0002] A bias tunnel opening refers to the phenomenon that the loads on both sides of the structure at the tunnel opening are asymmetric due to topographic asymmetry or geological rock stratum factors. When the tunnel entrance is located on an unstable hillside with poor topographic conditions, or when the soil layer thickness on both sides of the tunnel top is seriously inconsistent, a bias phenomenon may occur. If this bias condition is not properly handled, in severe cases, it may lead to the rupture and collapse of the tunnel. For the construction of bias tunnel openings, a series of preventive measures and construction techniques are required to ensure safety. For example, the pressure can be balanced by strengthening the slope and the cut slope, increasing the foundation retaining wall, and reducing the lateral thrust of the mountain body.

[0003] During the use of a bias tunnel opening, gravel is likely to fall on the hillside, which is likely to pose a certain safety hazard to the opening. The gravel will affect passing vehicles, and the safety is relatively low. There is currently no structure for protecting the opening, which is not convenient for users to use.

[0004] Therefore, it is necessary to design and transform the bias tunnel opening to effectively prevent the phenomenon that gravel is likely to fall on the hillside, which is likely to pose a certain safety hazard to the opening, the gravel will affect passing vehicles, the safety is relatively low, there is currently no structure for protecting the opening, and it is not convenient for users to use. Content of the Utility Model

[0005] To solve the problems raised in the above background technique, the purpose of the present utility model is to provide a protection structure for a bias tunnel opening, which has the advantage of safety protection, and solves the problems that gravel is likely to fall on the hillside, which is likely to pose a certain safety hazard to the opening, the gravel will affect passing vehicles, the safety is relatively low, there is currently no structure for protecting the opening, and it is not convenient for users to use.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: A protection structure for a bias tunnel opening, including a bias tunnel opening, a protection ring is arranged on the front of the bias tunnel opening, both sides of the top of the bias tunnel opening are fixedly connected with fixed pipes, both sides of the protection ring are fixedly connected with fixed rings, the fixed rings are slidably connected with the fixed pipes, both sides of the fixed pipes are slidably connected with clamping rods, the clamping rods are slidably connected with the fixed rings, and a clamping component is arranged inside the fixed pipes.

[0007] Preferably, the clamping assembly includes a pressing disc located inside the fixed pipe. A screw rod is fixedly connected to the top of the pressing disc. A screw sleeve is sleeved on the top of the screw rod. A cover plate is fixedly connected to the top of the pressing disc. The screw sleeve is slidably connected to the cover plate.

[0008] Preferably, a fixed block is fixedly connected to the bottom of the inner wall of the fixed pipe, and a sliding groove is formed in the top of the fixed block.

[0009] Preferably, a tension spring is arranged inside the sliding groove, and the other end of the tension spring is fixedly connected inside the sliding groove.

[0010] Preferably, a positioning rod is fixedly connected to the bottom of the clamping rod. The positioning rod is fixedly connected to the tension spring and is slidably connected to the sliding groove.

[0011] Preferably, a square rod is fixedly connected to the top of the fixed block, and the square rod is slidably connected to the pressing disc.

[0012] Preferably, protective rings are fixedly connected to both the top and the bottom of the surface of the screw sleeve, and the protective rings are used in cooperation with the cover plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, the fixing ring is sleeved on the fixed pipe, and the protective ring is sleeved on the hole. Then, during use, the screw sleeve is rotated. The rotation of the screw sleeve drives the screw rod to move downward. The downward movement of the screw rod drives the pressing disc to move downward. The downward movement of the pressing disc presses the clamping rod, causing the clamping rod to move outward. The clamping rod is stuck on the top of the fixing ring, which can limit the fixing ring and achieve the effect of safety protection for the bias tunnel hole, replacing the existing method of not protecting the hole. Thus, it can achieve safety protection for the hole, block and protect the crushed stones, and has relatively high safety.

[0015] 2. Through the setting of the clamping assembly in the present utility model, the clamping rod can be limited, effectively improving the stability of the clamping rod, avoiding the phenomenon of the clamping rod shaking, having relatively high safety, and being convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0017] Figure 2 is an exploded schematic diagram of the fixing ring of the present utility model;

[0018] Figure 3 is the present utility model Figure 2 Enlarged schematic diagram at A in.

[0019] In the figure: 1. Bias tunnel entrance; 2. Protection ring; 3. Fixed pipe; 4. Fixed ring; 5. Clamping rod; 6. Clamping component; 61. Tightening disc; 62. Screw rod; 63. Screw sleeve; 64. Cover plate; 7. Fixed block; 8. Chute; 9. Tension spring; 10. Positioning rod; 11. Square rod; 12. Protection ring. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] As Figures 1 to 3 shown, a bias tunnel entrance protection structure provided by the present invention includes a bias tunnel entrance 1. A protection ring 2 is arranged on the front surface of the bias tunnel entrance 1. Both sides of the top of the bias tunnel entrance 1 are fixedly connected with fixed pipes 3. Both sides of the protection ring 2 are fixedly connected with fixed rings 4. The fixed ring 4 is slidably connected with the fixed pipe 3. Both sides of the fixed pipe 3 are slidably connected with clamping rods 5. The clamping rod 5 is slidably connected with the fixed ring 4. A clamping component 6 is arranged inside the fixed pipe 3.

[0022] Referring to Figure 2 , the clamping component 6 includes a tightening disc 61. The tightening disc 61 is located inside the fixed pipe 3. The top of the tightening disc 61 is fixedly connected with a screw rod 62. A screw sleeve 63 is sleeved on the top of the screw rod 62. The top of the tightening disc 61 is fixedly connected with a cover plate 64. The screw sleeve 63 is slidably connected with the cover plate 64.

[0023] As a technical optimization scheme of the present invention, through the setting of the clamping component 6, the clamping rod 5 can be limited, effectively improving the stability of the clamping rod 5, avoiding the phenomenon of the clamping rod 5 shaking, with relatively high safety and being convenient for users to use.

[0024] Referring to Figure 2 , the bottom of the inner wall of the fixed pipe 3 is fixedly connected with a fixed block 7. A chute 8 is opened at the top of the fixed block 7.

[0025] As a technical optimization scheme of the present invention, through the setting of the fixed block 7, the clamping rod 5 can be limited, effectively improving the stability of the clamping rod 5 and being convenient for users to use.

[0026] Referring to Figure 3 , a tension spring 9 is arranged inside the chute 8. The other end of the tension spring 9 is fixedly connected inside the chute 8.

[0027] As a technical optimization solution of the present utility model, through the arrangement of the tension spring 9, the positioning rod 10 can be tightened, effectively improving the stability of the positioning rod 10 and effectively improving the convenience of the positioning rod 10, facilitating the use by the user.

[0028] Reference Figure 2 , the bottom of the clamping rod 5 is fixedly connected with a positioning rod 10, the positioning rod 10 is fixedly connected with the tension spring 9, and the positioning rod 10 is slidably connected with the chute 8.

[0029] As a technical optimization solution of the present utility model, through the arrangement of the positioning rod 10, the clamping rod 5 can be positioned, effectively improving the stability of the clamping rod 5, and the phenomenon of the clamping rod 5 shaking can be avoided, facilitating the use by the user.

[0030] Reference Figure 2 , the top of the fixed block 7 is fixedly connected with a square rod 11, and the square rod 11 is slidably connected with the pressing disc 61.

[0031] As a technical optimization solution of the present utility model, through the arrangement of the square rod 11, the pressing disc 61 can be limited, avoiding the phenomenon of the pressing disc 61 twisting, with relatively high safety and facilitating the use by the user.

[0032] Reference Figure 2 , the top and bottom of the surface of the screw sleeve 63 are both fixedly connected with a protective ring 12, and the protective ring 12 is used in cooperation with the cover plate 64.

[0033] As a technical optimization solution of the present utility model, through the arrangement of the protective ring 12, the surface of the screw sleeve 63 can be limited, effectively avoiding the phenomenon of the screw sleeve 63 shaking, with excellent stability and facilitating the use by the user.

[0034] The working principle and usage process of the present utility model: When in use, when the user needs to protect the hole, the user sleeved the fixing ring 4 on the fixing tube 3, sleeved the protective ring 2 on the hole, and then rotated the screw sleeve 63 during use. The rotation of the screw sleeve 63 drives the screw rod 62 to move downward. The downward movement of the screw rod 62 drives the pressing disc 61 to move downward. The downward movement of the pressing disc 61 presses against the clamping rod 5, causing the clamping rod 5 to move outward. The clamping rod 5 is stuck on the top of the fixing ring 4, which can limit the fixing ring 4, solving the problem that on the hillside, gravel is likely to fall, which is likely to pose a certain safety hazard to the hole, the gravel will affect passing vehicles, the safety is relatively low, and there is currently no structure for protecting the hole, which is not convenient for the user to use, thus achieving the effect of excellent protection.

[0035] In summary, for the protection structure of the bias-pressure tunnel entrance, through the combined use of the bias-pressure tunnel entrance 1, the protection ring 2, the fixed pipe 3, the fixed ring 4, the clamping rod 5, the clamping assembly 6, the abutting disc 61, the screw rod 62, the screw sleeve 63 and the cover plate 64, the problems that gravel is likely to fall on the hillside, which can easily pose certain safety hazards to the entrance, the gravel will affect passing vehicles, the safety is relatively low, there is currently no structure for protecting the entrance, and it is not convenient for users to use are solved.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biased tunnel opening protection structure, comprising a biased tunnel opening (1), characterized in that: A protective ring (2) is provided on the front of the bias tunnel opening (1); fixed tubes (3) are fixedly connected to both sides of the top of the bias tunnel opening (1); fixed rings (4) are fixedly connected to both sides of the protective ring (2); the fixed rings (4) are slidably connected to the fixed tubes (3); clamping rods (5) are slidably connected to both sides of the fixed tube (3); the clamping rods (5) are slidably connected to the fixed rings (4); and a clamping assembly (6) is provided inside the fixed tube (3).

2. The biased tunnel opening protection structure according to claim 1, characterized in that: The clamping assembly (6) comprises a clamping plate (61), the clamping plate (61) is located inside the fixed tube (3), the top of the clamping plate (61) is fixedly connected to a screw rod (62), the top of the screw rod (62) is sleeved with a screw sleeve (63), the top of the clamping plate (61) is fixedly connected to a cover plate (64), and the screw sleeve (63) is slidably connected to the cover plate (64).

3. The biased tunnel opening protection structure according to claim 1, characterized in that: A fixing block (7) is fixedly connected to the bottom of the inner wall of the fixing tube (3), and a sliding groove (8) is provided on the top of the fixing block (7).

4. The biased tunnel opening protection structure according to claim 3, characterized in that: A tension spring (9) is arranged inside the slide groove (8), and the other end of the tension spring (9) is fixedly connected to the inside of the slide groove (8).

5. The biased tunnel opening protection structure according to claim 1, characterized in that: A positioning rod (10) is fixedly connected to the bottom of the clamping rod (5), the positioning rod (10) is fixedly connected to the tension spring (9), and the positioning rod (10) is slidably connected to the sliding groove (8).

6. The biased tunnel opening protection structure according to claim 3, characterized in that: A square rod (11) is fixedly connected to the top of the fixed block (7), and the square rod (11) is slidably connected to the abutting plate (61).

7. The biased tunnel opening protection structure according to claim 2, characterized in that: The top and bottom of the surface of the screw sleeve (63) are both fixedly connected with a protective ring (12), and the protective ring (12) is used in conjunction with the cover plate (64).

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