Detachable protective barrier of steel trestle for tunnel

Abstract

The utility model discloses a detachable protective barrier for a steel trestle for a tunnel. The detachable protective barrier comprises a bottom rod, a base is arranged at the bottom of the bottom rod, positioning bolts are arranged on the periphery of the bottom of the base, an inserting groove is formed in the top end of the bottom rod, the bottom of the inserting groove is communicated with a cross-shaped groove, and a positioning hole is formed in the side wall of the top end of the bottom rod. Through combined use of the bottom rod, the assembling rod, the inserting rod and the cross-shaped inserting block, follow-up assembling treatment of the whole protective barrier body can be conveniently achieved, using is more convenient and faster, practicability is higher, follow-up moving adjustment and the like of the assembled protective barrier body are also facilitated, flexibility is higher, and practicability is higher. When the assembling rod drives the inserting rod fixedly installed at the bottom of the assembling rod to be connected with the inserting groove formed in the top end of the bottom rod in a clamped mode, the cross-shaped inserting block can be input into the inner side of the cross-shaped groove, then clamping connection between the bottom rod and the assembling rod is achieved, convenience and rapidness are achieved, and higher flexibility is achieved.

Description

Technical Field

[0001] The utility model relates to the field of detachable protective railings of steel trestle bridges for tunnels, in particular to a detachable protective railing of steel trestle bridges for tunnels. Background Art

[0002] With the acceleration of urbanization, urban infrastructure construction has continued to increase, and the number of highway constructions has gradually increased. Many highways face the problem of crossing mountains during construction. The choice of construction routes will face the choice of bypassing the mountains or directly digging tunnels. In the process of tunnel construction, steel trestles will be used to facilitate the passage of personnel, and guardrails will be used to protect personnel.

[0003] However, most of the existing detachable guardrails for tunnel steel trestles are integrated structures and are assembled by bolts when in use. This assembly method is not only time-consuming and labor-intensive, but also has poor practicality. The integrated guardrails are not conducive to the transportation or handling of the guardrails themselves, and do not have higher practicality. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a detachable protective railing for a steel trestles for tunnels, which can solve the technical problem that most of the existing detachable protective railings for steel trestles for tunnels are integrated structures and are mostly assembled by bolts when in use. Such assembly method is not only time-consuming and labor-intensive, but also has poor practicality. The integrated railing is not conducive to the transportation or handling of the railing itself, and does not have higher practicality.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a detachable guardrail for a steel trestle for a tunnel, comprising a bottom bar, a base is provided at the bottom of the bottom bar, and a positioning bolt is provided on the outer periphery of the bottom of the base, a slot is provided at the top of the bottom bar, and the bottom of the slot is connected to a cross slot, a positioning hole is provided on the top side wall of the bottom bar, a first card slot is provided on the bottom side wall of the bottom bar, and one side of the first card slot is connected to a first groove, an assembly rod is distributed above the bottom bar, and an insertion rod is fixedly installed at the bottom of the assembly rod, a cross plug block is provided at the bottom of the insertion rod, and a positioning structure is fixedly connected to the inner side of the insertion rod.

[0006] As an optimal technical solution of the present invention, the positioning structure includes a reset spring, a positioning rod and an auxiliary slide. The reset spring is fixedly connected to the inner side of the insertion rod, and the other end of the reset spring is fixedly connected to the positioning rod. An auxiliary slide is sleeved on the outer side of one end of the positioning rod.

[0007] As a preferred technical solution of the present invention, a second slot is provided on the top side wall of the assembly rod, and one side of the second slot is connected to a second groove.

[0008] As an optimal technical solution of the present invention, a cross bar is distributed on one side of the bottom bar, and a railing is welded to the top end of the cross bar. A clamping block is provided on the side wall of the cross bar, and a protrusion is fixedly installed on the other side of the clamping block.

[0009] As a preferred technical solution of the present invention, the positioning holes are symmetrically distributed along the vertical center line of the bottom rod, and the positioning holes and the bottom rod form an integrated structure.

[0010] As a preferred technical solution of the present invention, the positioning rod is slidably connected to the insertion rod through the return spring, and the positioning rod is symmetrically distributed along the vertical center line of the insertion rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. By using the combination of the provided bottom rod, assembly rod, insertion rod and cross insert, the subsequent assembly of the entire guardrail body can be facilitated, which is more convenient and quick to use, more practical, and also convenient for subsequent movement and adjustment of the assembled guardrail body, etc., with higher flexibility. When the assembly rod drives the insertion rod fixed at its bottom to engage with the slot opened at the top of the bottom rod, the cross insert will be input into the inner side of the cross slot, thereby realizing the engagement connection between the bottom rod and the assembly rod, which is convenient, quick and has higher flexibility.

[0013] 2. By using the reset spring, the positioning rod and the auxiliary slide in combination, the subsequent positioning of the insertion rod can be facilitated, thereby preventing the subsequent assembly rod from falling off from the bottom rod under the action of external force, affecting the subsequent protection effect. The reverse force generated by the deformation of the reset spring will push the positioning rod, thereby realizing the lateral movement of the positioning rod, and then one end of the positioning rod will be input into the inner side of the positioning hole to realize the positioning of the insertion rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the detachable protective railing of the steel trestle for tunnels of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the bottom bar of the detachable guardrail of the steel trestle for tunnels of the utility model;

[0016] Figure 3 This is a side view of the structure of the assembly rod of the detachable guardrail of the steel trestle for tunnels of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the detachable guardrail rod of the steel trestle for tunnels of the utility model;

[0018] Figure 5 This is a side view of the structure of the detachable protective railing of the steel trestle for tunnels of the utility model;

[0019] Among them: 1. Bottom rod; 2. Base; 3. Positioning bolt; 4. Slot; 5. Cross slot; 6. Positioning hole; 7. First slot; 8. First groove; 9. Assembly rod; 10. Insert rod; 11. Cross insert block; 12. Return spring; 13. Positioning rod; 14. Auxiliary slide; 15. Second slot; 16. Second groove; 17. Cross bar; 18. Railing; 19. Block; 20. Bump. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] Example

[0022] Please refer to Figure 1 and Figure 2 As shown, the utility model provides a detachable guardrail for a steel trestle for a tunnel, comprising a bottom bar 1, a base 2 being provided at the bottom of the bottom bar 1, and a positioning bolt 3 being provided on the periphery of the bottom of the base 2, a slot 4 being provided at the top of the bottom bar 1, and a cross slot 5 being connected to the bottom of the slot 4, a positioning hole 6 being provided at the top side wall of the bottom bar 1, a first card slot 7 being provided at the bottom side wall of the bottom bar 1, and a first groove 8 being connected to one side of the first card slot 7, an assembly rod 9 being distributed above the bottom bar 1, and an insertion rod 10 being fixedly installed at the bottom of the assembly rod 9, a cross plug block 11 being provided at the bottom of the insertion rod 10, and a positioning structure being fixedly connected to the inner side of the insertion rod 10;

[0023] When in use, first place the base 2 in the designated position, then use the provided positioning bolts 3 to achieve the positioning of the base 2. After the base 2 is positioned, the connection between the assembly rod 9, the bottom rod 1 and the cross bar 17 can be achieved.

[0024] As a further implementation of this embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, a slot 4 is provided at the top of the bottom rod 1, and a cross slot 5 is connected to the bottom of the slot 4. A positioning hole 6 is provided on the top side wall of the bottom rod 1. The positioning holes 6 are symmetrically distributed along the vertical center line of the bottom rod 1, and the positioning hole 6 and the bottom rod 1 form an integrated structure. A first card slot 7 is provided on the bottom side wall of the bottom rod 1, and one side of the first card slot 7 is connected to a first groove 8. An assembly rod 9 is distributed above the bottom rod 1, and an insertion rod 10 is fixedly installed at the bottom of the assembly rod 9. A cross plug block 11 is provided at the bottom of the insertion rod 10. A positioning structure is fixedly connected to the inner side of the insertion rod 10. The positioning structure includes a reset spring 12, a positioning rod 13 and an auxiliary slide 14. The spring 12 is fixedly connected to the inner side of the insertion rod 10, and the other end of the return spring 12 is fixedly connected to the positioning rod 13. The positioning rod 13 is slidably connected to the insertion rod 10 through the return spring 12, and the positioning rod 13 is symmetrically distributed along the vertical center line of the insertion rod (10. An auxiliary slide 14 is sleeved on the outer side of one end of the positioning rod 13. A second card slot 15 is opened on the top side wall of the assembly rod 9, and a second groove 16 is connected to one side of the second card slot 15. A cross bar 17 is distributed on one side of the bottom rod 1, and a railing 18 is welded to the top of the cross bar 17. A block 19 is provided on the side wall of the cross bar 17, and a protrusion 20 is fixedly installed on the other side of the block 19.

[0025] When it is necessary to realize the connection between the assembly rod 9 and the bottom rod 1, the insertion rod 10 provided at the bottom of the assembly rod 9 drives the cross plug 11 to be input into the slot 4 opened at the top of the bottom rod 1, and the cross plug 11 will be input into the inner side of the cross slot 5, and then the preliminary connection between the two can be realized. When the insertion rod 10 is completely input into the inner side of the slot 4, the reverse force generated by the deformation of the return spring 12 will push the positioning rod 13, and then realize the lateral movement of the positioning rod 13, and then one end of the positioning rod 13 will be input into the inner side of the positioning hole 6, thereby realizing the positioning processing of the insertion rod 10. In this way, the stability of the connection between the bottom bar 1 and the assembly bar 9 is improved, and the auxiliary slide 14 can improve the stability of the positioning bar 13 during the lateral movement. Then, the block 19 provided on the side wall of the cross bar 17 is input into the inner side of the first slot 7, and the protrusion 20 fixedly installed on the side wall of the block 19 is input into the inner side of the first groove 8, thereby realizing the fixed connection between the cross bar 17 and the bottom bar 1, and the block 19 and the protrusion 20 provided on the side wall of the top cross bar 17 are input into the inner side of the second slot 15 and the second groove 16, thereby realizing the quick connection between the cross bar 17 and the assembly bar 9;

[0026] Specific working principle:

[0027] First, place the base 2 in the specified position, and then use the provided positioning bolts 3 to achieve the positioning of the base 2. When the positioning of the base 2 is completed, the insertion rod 10 provided at the bottom of the assembly rod 9 drives the cross plug 11 to be input into the slot 4 opened at the top of the bottom rod 1, and the cross plug 11 will be input into the inner side of the cross slot 5, and then the preliminary connection between the two can be achieved. When the insertion rod 10 is completely input into the inner side of the slot 4, the reverse force generated by the deformation of the return spring 12 will push the positioning rod 13, and then the lateral movement of the positioning rod 13 will be achieved, and then one end of the positioning rod 13 will be input into the inner side of the positioning hole 6, thereby achieving the positioning of the insertion rod 10. This is to improve the stability of the connection between the bottom bar 1 and the assembly bar 9, and the auxiliary slide 14 provided can improve the stability of the positioning bar 13 during the lateral movement, and then the block 19 provided on the side wall of the cross bar 17 is input into the inner side of the first slot 7, and the protrusion 20 fixedly installed on the side wall of the block 19 will be input into the inner side of the first groove 8, so as to realize the fixed connection between the cross bar 17 and the bottom bar 1, and the block 19 and the protrusion 20 provided on the side wall of the top cross bar 17 will be input into the inner side of the second slot 15 and the second groove 16, so as to realize the quick connection between the cross bar 17 and the assembly bar 9, and the whole structure is convenient and fast to assemble, more practical, and easy to disassemble subsequently.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable guardrail for a steel trestle for a tunnel, comprising a bottom bar (1), characterized in that: The bottom of the bottom rod (1) is provided with a base (2), and the periphery of the bottom of the base (2) is provided with a positioning bolt (3), the top of the bottom rod (1) is provided with a slot (4), and the bottom of the slot (4) is connected to a cross slot (5), the top side wall of the bottom rod (1) is provided with a positioning hole (6), the bottom side wall of the bottom rod (1) is provided with a first clamping slot (7), and one side of the first clamping slot (7) is connected to a first groove (8), an assembly rod (9) is distributed above the bottom rod (1), and an insertion rod (10) is fixedly installed at the bottom of the assembly rod (9), a cross insertion block (11) is provided at the bottom of the insertion rod (10), and a positioning structure is fixedly connected to the inner side of the insertion rod (10).

2. The detachable guardrail for a steel trestle for a tunnel according to claim 1 is characterized by: The positioning structure comprises a return spring (12), a positioning rod (13) and an auxiliary slide plate (14); the return spring (12) is fixedly connected to the inner side of the insertion rod (10), and the other end of the return spring (12) is fixedly connected to the positioning rod (13); and the auxiliary slide plate (14) is sleeved on the outer side of one end of the positioning rod (13).

3. The detachable guardrail for a steel trestle for a tunnel according to claim 1 is characterized by: A second clamping groove (15) is formed on the top side wall of the assembly rod (9), and one side of the second clamping groove (15) is connected to a second groove (16).

4. The detachable guardrail for a steel trestle for a tunnel according to claim 1 is characterized by: A cross bar (17) is distributed on one side of the bottom bar (1), and a handrail (18) is welded to the top of the cross bar (17). A clamping block (19) is provided on the side wall of the cross bar (17), and a protrusion (20) is fixedly installed on the other side of the clamping block (19).

5. The detachable guardrail for a steel trestle for a tunnel according to claim 1 is characterized by: The positioning holes (6) are symmetrically distributed along the vertical center line of the bottom rod (1), and the positioning holes (6) and the bottom rod (1) form an integrated structure.

6. The detachable guardrail for a steel trestle for a tunnel according to claim 2 is characterized by: The positioning rod (13) is slidably connected to the insertion rod (10) via the return spring (12), and the positioning rod (13) is symmetrically distributed along the vertical center line of the insertion rod (10).

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