Trailer retaining device

Abstract

The utility model provides a trailer retaining device. The trailer retaining device comprises guide rails arranged in parallel; the arc-shaped sleeper rails are arranged in parallel; the two ends of the arc-shaped sleeper rail are respectively connected with the guide rails; a connecting port matched with the guide rail is formed in one side of the retaining plate, and the retaining plate is connected with the guide rail in an inserted mode through the connecting port; and the clamping plates are symmetrically arranged on the two sides of the guide rail, and the clamping plates are connected with the retaining plate and the guide rail correspondingly. When the trailer needs to be braked, the retaining plate can abut against the traveling wheels of the trailer, then the clamping plate is connected with the guide rail, and the trailer retaining device is fixed to the guide rail, so that the trailer can be braked conveniently, the trailer can be fixed during large-angle climbing, and the problem that the trailer is not easy to brake after being disassembled is solved.

Description

Technical Field

[0001] The present application relates to the field of TBMs for large-angle climbing inclined shafts, and in particular to a trailer back-stopping device. Background Art

[0002] During the construction of TBM (tunnel boring machine) in steep slopes, trailers are key tools for transporting heavy equipment and materials. These trailers are very difficult to brake when traveling on steep slopes due to their heavy body and high inertia. Usually, the trailer is connected to the shotcrete bridge through a hook to facilitate up and down transportation in the inclined shaft. During the dismantling of the TBM, the shotcrete bridge is usually removed before the trailer, because the shotcrete bridge, as part of the TBM, needs to be dismantled first so that the TBM can exit the inclined shaft. During this period, since the trailer itself has no braking mechanism, it is necessary to ensure that the trailer can be fixed in a specific position without the support of the shotcrete bridge to prevent it from sliding or falling due to gravity, causing equipment damage or casualties. Therefore, it is necessary to brake the trailer, for example, to set up physical barriers to prevent the trailer from slipping, but if the barriers are not strong enough or designed improperly, they may not be able to withstand the huge weight and impact of the trailer, resulting in damage to the rails or derailment of the trailer. Anchor systems are used to brake the trailer, but anchor systems may require specific conditions and time to install and may not be applicable in certain situations, such as when geological conditions do not allow the installation of anchor rods. Utility Model Content

[0003] The present application provides a trailer back-up prevention device to solve the problem that the TMB trailer is difficult to brake when being dismantled.

[0004] The present application provides a trailer back-up prevention device, comprising: guide rails arranged in parallel;

[0005] A plurality of arc-shaped sleeper rails are arranged parallel to each other; two ends of the arc-shaped sleeper rails are respectively connected to the guide rails;

[0006] A backstop plate, one side of which is provided with a connection port matching the guide rail, and the backstop plate is plugged into the guide rail through the connection port;

[0007] The clamping plates are symmetrically arranged on both sides of the guide rail, and the clamping plates are respectively connected to the stop plate and the guide rail.

[0008] Optionally, the cross-section of the guide rail is T-shaped, and the guide rail includes a first side and a second side, the first side is inserted into the connecting port, and the second side abuts against the backstop plate.

[0009] Optionally, the cross section of the clamping plate is L-shaped, and the clamping plate includes a first connecting surface and a second connecting surface, the first connecting surface is connected to the stop plate, and the second connecting surface is connected to the guide rail.

[0010] Optionally, the retaining plate is detachably connected to the first connecting surface by bolts.

[0011] Optionally, it also includes a limiting bolt, the second connecting surface is provided with a first limiting hole, and the guide rail is provided with a plurality of second limiting holes; the limiting bolt is sequentially inserted into the first limiting hole and the second limiting hole to connect the second connecting surface to the guide rail.

[0012] Optionally, the limiting bolt is a stud bolt, and both ends of the stud bolt are threadedly mounted with a first nut and a second nut respectively.

[0013] Optionally, the distance that the backstop plate extends beyond the guide rail is greater than or equal to the diameter of the trailer's running wheel.

[0014] It can be known from the above technical scheme that the present application provides a trailer backstop device, including: parallel guide rails; a plurality of arc-shaped sleeper rails arranged in parallel to each other; the two ends of the arc-shaped sleeper rails are respectively connected to the guide rails; a backstop plate, one side of the backstop plate is provided with a connection port matching the guide rail, and the backstop plate is plugged into the guide rail through the connection port; a clamping plate, the clamping plates are symmetrically arranged on both sides of the guide rail, and the clamping plates are respectively connected to the backstop plate and the guide rail. When the trailer needs to brake, the backstop plate can be abutted against the trailer's running wheel, and then the clamping plate can be connected to the guide rail to fix the trailer backstop device on the guide rail, thereby facilitating the trailer's braking, and can fix the trailer when the TBM is dismantled in a large-angle climbing inclined shaft, so as to solve the problem of difficulty in braking after the trailer is dismantled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 A schematic diagram of a trailer back-up prevention device provided in an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the connection between the stop plate and the clamping plate provided in the embodiment of the present application;

[0018] Figure 3 A top view of a trailer back-up prevention device provided in an embodiment of the present application.

[0019] Reference numerals:

[0020] Among them, 1-guide rail; 11-first side; 12-second side; 13-second limiting hole; 2-arc-shaped sleeper rail; 3-stop plate; 31-connecting port; 4-clamping plate; 41-first connecting surface; 42-second connecting surface; 421-first limiting hole; 5-limiting bolt; 51-first nut; 52-second nut; 6-trailer walking wheel. DETAILED DESCRIPTION

[0021] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0022] During the construction of TBM (tunnel boring machine) in steep slopes, trailers are key tools for transporting heavy equipment and materials. These trailers are very difficult to brake when traveling on steep slopes due to their heavy body and high inertia. Usually, the trailer is connected to the shotcrete bridge through a hook to facilitate up and down transportation in the inclined shaft. During the dismantling of the TBM, the shotcrete bridge is usually removed before the trailer, because the shotcrete bridge, as part of the TBM, needs to be dismantled first so that the TBM can exit the inclined shaft. During this period, since the trailer itself has no braking mechanism, it is necessary to ensure that the trailer can be fixed in a specific position without the support of the shotcrete bridge to prevent it from sliding or falling due to gravity, causing equipment damage or casualties. Therefore, it is necessary to brake the trailer, for example, to set up physical barriers to prevent the trailer from slipping, but if the barriers are not strong enough or designed improperly, they may not be able to withstand the huge weight and impact of the trailer, resulting in damage to the rails or derailment of the trailer. Anchor systems are used to brake the trailer, but anchor systems may require specific conditions and time to install and may not be applicable in certain situations, such as when geological conditions do not allow the installation of anchor rods.

[0023] Therefore, a more reliable, safe and easy-to-implement solution is needed to solve the braking problem of TBM trailers in large-angle climbing inclined shafts in order to improve safety and reduce risks during construction.

[0024] To solve the problem of difficulty in braking after the trailer is dismantled, refer to Figure 1 , the embodiment of the present application provides a trailer back-up prevention device, comprising:

[0025] The guide rails 1 are arranged in parallel, wherein the guide rails 1 are arranged in parallel to ensure that the trailer or other mobile device can run smoothly along a predetermined path. When the guide rails 1 are arranged, the spacing between the guide rails 1 should be determined according to the spacing between the running wheels of the trailer to ensure that the assembly requirements are met.

[0026] A plurality of arc-shaped sleeper rails 2 are arranged parallel to each other; the two ends of the arc-shaped sleeper rails 2 are respectively connected to the guide rails 1; wherein, the arc-shaped sleeper rails 2 play a supporting and connecting role between the two guide rails 1, and connecting the guide rail 1 with the arc-shaped sleeper rails 2 can make the force distribution of the guide rail 1 more uniform, especially when the route is an arc, the arrangement of the arc-shaped sleeper rails 2 can improve the ability of the guide rail 1 to resist bending stress, and it is very important to maintain the correct trajectory of the trailer running wheel 6 and prevent the guide rail 1 from deforming.

[0027] The anti-recoil plate 3 has a connection port 31 on one side thereof that matches the guide rail 1, and the anti-recoil plate 3 is plugged into the guide rail 1 through the connection port 31. Figure 2 As shown, the connection port 31 is a rectangular opening, and the width of the connection port 31 is the same as the width of the guide rail 1. When the trailer needs to be braked, the connection port 31 of the backstop plate 3 can be aligned with the guide rail 1, and then the backstop plate 3 can be pressed to complete the installation of the backstop plate 3 and the guide rail 1. Then, the front and rear positions of the backstop plate 3 can be adjusted to make the backstop plate 3 abut against the running wheels of the trailer.

[0028] Clamping plates 4 are symmetrically arranged on both sides of the guide rail 1, and are respectively connected to the backstop plate 3 and the guide rail 1. When the backstop plate 3 is installed, the backstop plate 3, the clamping plates 4 and the guide rail 1 are connected together by setting the clamping plates 4, which is equivalent to setting a protrusion on the guide rail 1 to prevent the trailer from moving. During the TBM disassembly process, the trailer brake will not cause displacement.

[0029] In some embodiments, the cross-sectional layer of the guide rail 1 is T-shaped, and the guide rail 1 includes a first side 11 and a second side 12, the first side 11 is inserted into the connection port 31, and the second side 12 is abutted against the backstop plate 3. Among them, the T-shaped structure of the guide rail 1 can provide support in three directions, thereby enhancing the overall stability of the guide rail 1. When it is necessary to withstand a large load or to maintain a stable guide rail 1 during high-speed movement. Secondly, the cross-section of the guide rail 1 is T-shaped, and the bottom of the guide rail 1 is wider, which can increase the contact area between the guide rail 1 and the arc-shaped sleeper rail 2, thereby improving the connection rigidity between the guide rail 1 and the arc-shaped sleeper rail 2, making the guide rail 1 less prone to vibration and deformation during use.

[0030] When the trailer needs to be braked, the connection port 31 of the backstop plate 3 is inserted into the first side edge 11, and the second side edge 12 abuts against the backstop plate 3, which facilitates the connection between the guide rail 1 and the backstop plate 3 and improves the accuracy and convenience of installation.

[0031] In some embodiments, the cross section of the clamping plate 4 is L-shaped, and the clamping plate 4 includes a first connecting surface 41 and a second connecting surface 42. The first connecting surface 41 is connected to the backstop plate 3, and the second connecting surface 42 is in contact with the guide rail 1. Among them, by setting the clamping plate 4 to be L-shaped, the first connecting surface 41 is connected to the backstop plate 3, and the contact area between the clamping plate 4 and the backstop plate 3 is increased, thereby ensuring the stability of the connection. At the same time, the second connecting surface 42 is connected to the guide rail 1, and the area of ​​the second connecting surface 42 is larger than the area of ​​the first connecting surface 41, which can provide greater resistance. When the trailer brakes, the backstop plate 3 will be subjected to greater pressure, and then the clamping plate 4 will also be subjected to greater force. By setting the clamping plate 4 to be L-shaped, the connection strength between the clamping plate 4 and the guide rail 1 is increased, so that no displacement occurs between the clamping plate 4 and the guide rail 1, thereby ensuring the performance of the trailer backstop device.

[0032] In some embodiments, the stop plate 3 is detachably connected to the first connection surface 41 by bolts. Figure 2 As shown, a plurality of threaded holes are provided on both sides of the stop plate 3, and a plurality of threaded holes are also provided at the corresponding position of the first connection surface 41. During installation, after aligning the threaded holes of the stop plate 3 with the first connection surface 41, insert the bolt from one side, pass through the threaded hole to the other side, and tighten the nut on the other side of the bolt until the required tightening degree is reached. After the bolt is tightened, check whether there is any abnormal gap or looseness between the stop plate 3 and the first connection surface 41. The detachable connection between the stop plate 3 and the first connection surface 41 is provided to facilitate installation and disassembly.

[0033] In some embodiments, it also includes a limiting bolt 5, the second connection surface 42 is provided with a first limiting hole 421, and the guide rail 1 is provided with a plurality of second limiting holes 13; the limiting bolt 5 is inserted into the first limiting hole 421 and the second limiting hole 13 in sequence to connect the second connection surface 42 to the guide rail 1. During installation, first ensure that the positions of the corresponding limiting holes on the second connection surface 42 and the guide rail 1 are correctly aligned, insert the limiting bolt 5 into the first limiting hole 421 from one side of the second connection surface 42, push or tap the limiting bolt 5, so that it passes through the first limiting hole 421 and the second limiting hole 13 in sequence. Use nuts or other fixings (such as washers, locking nuts, etc.) on the other side of the guide rail 1 to tighten the limiting bolt 5 to ensure that the second connection surface 42 is firmly connected to the guide rail 1. After the installation is completed, it is necessary to check whether the connection is stable to ensure the correct position and preload. Among them, the first limiting hole 421 and the second limiting hole 13 are provided, which can be quickly positioned, simplify the assembly process, and increase the installation speed. At the same time, the clearance between the guide rail 1 and the second connection surface 42 is reduced by the cooperation between the limiting bolt 5 and the first limiting hole 421 and the second limiting hole 13, thereby improving the stability of the overall structure. At the same time, the design of the first limiting hole 421 and the second limiting hole 13 helps to prevent relative displacement or rotation between the connection parts caused by vibration or load.

[0034] In some embodiments, Figure 3 As shown, the limit bolt 5 is a stud bolt, and the first nut 51 and the second nut 52 are respectively threadedly installed at both ends of the stud bolt. The first nut 51 and the second nut 52 are respectively installed at both ends of the stud screw, so that a pre-tightening force can be applied to both ends of the limit screw, thereby providing a stronger clamping force and stability, and the safety of the trailer backstop device can be improved when subjected to a large dynamic load or impact. At the same time, the use of the stud bolt, the first nut 51 and the second nut 52 can provide double insurance to prevent the bolt from loosening during use, thereby improving safety.

[0035] In some embodiments, the distance that the backstop plate 3 extends beyond the guide rail 1 is greater than or equal to the diameter of the trailer's running wheel 6. Among them, by setting the distance that the backstop plate 3 extends beyond the guide rail 1 to be greater than or equal to the diameter of the trailer's running wheel 6, the contact point between the trailer's running wheel 6 and the backstop plate 3 can be close to the guide rail 1, thereby absorbing the impact force from the trailer, reducing the stress concentration on the guide rail 1, and extending the service life. At the same time, in different working environments, the diameter of the trailer wheel may be different. Setting the distance that the backstop plate 3 extends beyond the guide rail 1 to be larger can enable the backstop plate 3 to adapt to more types of trailer running wheels 6, thereby improving the compatibility of the trailer backstop device.

[0036] The present application provides a trailer backstop device, comprising: a guide rail 1 arranged in parallel; a plurality of arc-shaped sleeper rails 2 arranged in parallel with each other; the two ends of the arc-shaped sleeper rails 2 are respectively connected to the guide rails 1; a backstop plate 3, one side of the backstop plate 3 is provided with a connection port 31 matching the guide rail 1, and the backstop plate 3 is plugged with the guide rail 1 through the connection port 31; a clamping plate 4, the clamping plate 4 is symmetrically arranged on both sides of the guide rail 1, and the clamping plate 4 is respectively connected to the backstop plate 3 and the guide rail 1. When the trailer needs to brake, the backstop plate 3 can be abutted against the trailer running wheel 6, and then the clamping plate 4 is connected to the guide rail 1, so that the trailer backstop device is fixed on the guide rail 1, so as to facilitate the braking of the trailer, and can fix the trailer when the TBM in the large-angle climbing inclined shaft is dismantled, so as to solve the problem that the trailer is not easy to brake after the trailer is dismantled.

[0037] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A trailer back-up prevention device, characterized in that: include: Guide rails (1) arranged in parallel; A plurality of arc-shaped sleeper rails (2) arranged parallel to each other; two ends of the arc-shaped sleeper rails (2) are respectively connected to the guide rails (1); A backstop plate (3), wherein a connection port (31) matching the guide rail (1) is provided on one side of the backstop plate (3), and the backstop plate (3) is plugged into the guide rail (1) via the connection port (31); A clamping plate (4), wherein the clamping plate (4) is symmetrically arranged on both sides of the guide rail (1), and the clamping plate (4) is respectively connected to the stop plate (3) and the guide rail (1).

2. The trailer back-up prevention device according to claim 1, characterized in that: The guide rail (1) has a T-shaped cross section, and comprises a first side edge (11) and a second side edge (12), wherein the first side edge (11) is inserted into the connection port (31), and the second side edge (12) abuts against the stop plate (3).

3. The trailer back-up prevention device according to claim 1, characterized in that: The cross-section of the clamping plate (4) is L-shaped. The clamping plate (4) comprises a first connecting surface (41) and a second connecting surface (42). The first connecting surface (41) is connected to the stop plate (3), and the second connecting surface (42) is connected to the guide rail (1).

4. The trailer back-up prevention device according to claim 3, characterized in that: The stop plate (3) is detachably connected to the first connection surface (41) via bolts.

5. The trailer back-up prevention device according to claim 4, characterized in that: It also includes a limiting bolt (5), the second connecting surface (42) is provided with a first limiting hole (421), and the guide rail (1) is provided with a plurality of second limiting holes (13); the limiting bolt (5) is inserted into the first limiting hole (421) and the second limiting hole (13) in sequence to connect the second connecting surface (42) to the guide rail (1).

6. The trailer back-up prevention device according to claim 5, characterized in that: The limiting bolt (5) is a stud bolt, and a first nut (51) and a second nut (52) are respectively threadedly mounted on both ends of the stud bolt.

7. The trailer back-up prevention device according to claim 1, characterized in that: The distance that the backstop plate (3) exceeds the guide rail (1) is greater than or equal to the diameter of the trailer running wheel (6).

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