Bridge connecting mechanism and simple steel trestle for tunnel road crossing

Abstract

The utility model relates to the technical field of steel trestles, in particular to a bridge connecting mechanism and a simple steel trestle for tunnel road spanning, which comprise a bridge component, a bridge connecting mechanism, a bridge connecting mechanism and a bridge connecting mechanism, and the bridge component comprises a beam table and a beam column which is vertically clamped at the bottom of the beam table; the connecting assembly is used for connecting the beam table and the beam column and comprises a locking piece arranged at the top of the beam column and an inserting block arranged at the bottom of the beam table; wherein a locking groove is formed in the top of the locking piece, a locking rod is arranged in the locking groove, the inserting block can be inserted into the locking groove, and a clamping groove matched with the locking rod is formed in the side wall of the inserting block; through the arrangement of the connecting assembly, stable and rapid connection between the beam platform and the beam column is achieved in a clamping installation mode, through mutual cooperation of accessories such as the sliding sleeve, the elastic piece and the brake groove, the rapid installation and disassembly functions are achieved, and the construction and disassembly efficiency of the steel trestle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel trestle bridges, in particular to a bridge connection mechanism and a simple steel trestle bridge for tunnel spanning roads. Background Art

[0002] A tunnel span is the portion of a tunnel that crosses over another road or railway. It connects roads, railways, or other transportation routes, ensuring smooth and barrier-free travel. Especially in mountainous areas or urban areas, tunnel spans can cross terrain obstacles or other structures, connecting transportation networks and improving traffic efficiency.

[0003] In the early stages of tunnel construction, a large amount of gravel will accumulate inside the tunnel and the tunnel ground will be uneven, making it difficult to transport construction equipment into the tunnel. Therefore, steel trestles are usually built to transport construction equipment such as cement and steel bars, or to transport the gravel out of the tunnel. Currently, since steel trestles are usually built with screw connections, the construction progress is slow, and after the tunnel is built, the screw connections will also make it difficult to dismantle the steel trestles.

[0004] At present, simple steel trestles built in tunnel spans are usually not equipped with guardrails, which leads to the problem of construction equipment falling from both sides of the steel trestles during transportation. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In view of the fact that the above-mentioned existing steel trestle is usually built by screw connection, which leads to slow construction progress, and after the tunnel is built, the screw connection also makes it difficult to dismantle the steel trestle, the present utility model is proposed.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a bridge connection mechanism, comprising: a bridge assembly, which includes a beam platform and a beam column vertically connected to the bottom of the beam platform; a connection assembly for connecting the beam platform and the beam column, which includes a locking piece arranged at the top of the beam column, and an insert block arranged at the bottom of the beam platform; wherein a locking groove is provided at the top of the locking piece, a locking rod is provided in the locking groove, the insert block can be inserted into the locking groove, and the side wall of the insert block is provided with a card groove adapted to the locking rod.

[0008] As a preferred solution of the bridge connection mechanism of the present invention, a sliding sleeve is sleeved on the outside of the locking member, and an elastic member is provided between the sliding sleeve and the beam column.

[0009] As a preferred solution of the bridge connection mechanism of the present invention, wherein: the side wall of the locking member is provided with a horizontally arranged long hole, the inner wall of the sliding sleeve is provided with a brake groove corresponding to the long hole, the brake groove is arranged obliquely, and the end of the brake groove close to the middle of the locking groove is the bottom end; the two ends of the locking rod respectively pass through the adjacent long holes and extend into the brake groove, and the locking rod can slide in the long hole and the brake groove; a receiving cavity for accommodating the locking rod is provided on one side of the locking groove adjacent to the card slot, and one end of the long hole extends to the receiving cavity.

[0010] As a preferred solution of the bridge connection mechanism of the present invention, the locking rod, the elongated hole, the braking groove, and the clamping groove are all symmetrical structures.

[0011] As a preferred solution of the bridge connection mechanism of the present invention, two symmetrical pressing plates are provided on the outer wall of the sliding sleeve.

[0012] The beneficial effects of the bridge connection mechanism of the present invention are as follows: the present invention realizes a stable and quick connection between the beam platform and the beam column by setting a connection component in a snap-on installation manner; and realizes the function of quick installation and disassembly through the mutual cooperation of accessories such as sliding sleeves, elastic parts and brake grooves, thereby improving the efficiency of building and dismantling the steel trestle.

[0013] Another object of the present invention is to provide a simple steel trestle for tunnel spanning, which aims to solve the problem that the simple steel trestle currently built in tunnel spanning is usually not equipped with guardrails, resulting in the construction materials often falling from both sides of the steel trestle during the transportation process.

[0014] In order to solve the above technical problems, the utility model also provides the following technical solutions: a simple steel trestle for tunnel crossing, comprising the bridge connection mechanism, wherein the beams and columns are arranged in parallel in two groups along the steel trestle erection path, and the beam platform is arranged on the top of the two beams and columns arranged oppositely; the beam platform is in an inverted T shape, and a bridge deck is provided between two adjacent beam platforms, and two groups of symmetrically arranged protective components are provided on both sides of the bridge deck.

[0015] As an optimal solution for the simple steel trestle for tunnel crossing of the utility model, the protective component includes a U-shaped guardrail movably connected to the bridge deck, the side wall of the bridge deck is provided with a groove, the groove is provided with an installation shaft, and the two ends of the U-shaped guardrail are provided with axial holes adapted to the installation shaft, and the two ends of the U-shaped guardrail are movably sleeved on the outside of the installation shaft.

[0016] As an optimal solution for the simple steel trestle for tunnel crossing of the utility model, wherein: a limiting groove is provided on the outside of the mounting shaft along the axial direction; the side wall of the shaft hole is provided with a sliding groove extending along its radial direction, and a sliding block is provided in the sliding groove, and the end of the sliding block adjacent to the opening of the sliding groove can be embedded in the limiting groove.

[0017] As an optimal solution for the simple steel trestle for tunnel crossing of the utility model, the bottom of the sliding groove is provided with a through hole, the end of the sliding block away from the mounting axis is fixedly connected to a sliding column, and the end of the sliding column away from the sliding block passes through the through hole and is fixedly connected to a pull rod.

[0018] As an optimal solution for the simple steel trestle for tunnel crossing of the utility model, a spring is provided in the sliding groove, the spring is sleeved on the outside of the sliding column, and one end of the spring is against the end face of the sliding groove and the other end is against the sliding block.

[0019] The beneficial effects of the simple steel trestle for tunnel crossing of the present invention are as follows: the present invention designs a protective component of the steel trestle, including a U-shaped guardrail and a movable installation shaft, which effectively provides side protection for pedestrians and goods. While ensuring safety, the rotation limit and release function of the U-shaped guardrail are realized by setting a sliding block, a pull rod, a spring and a limit groove, so that the guardrail can be flexibly rotated to a state perpendicular to or parallel to the bridge deck. When perpendicular to the bridge deck, it can provide effective protection, and when parallel to the bridge deck, it can be conveniently stored after disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the bridge connection mechanism of the present utility model.

[0022] Figure 2 It is a cross-sectional view of the connecting assembly in the bridge connecting mechanism of the present invention.

[0023] Figure 3 This is an exploded view of the connecting components in the bridge connecting mechanism of the present invention.

[0024] Figure 4 The utility model is a schematic diagram of the overall structure of a simple steel trestle for tunnel crossing.

[0025] Figure 5The utility model is a schematic diagram of the structure of the protective components and the bridge deck of the simple steel trestle for tunnel crossing.

[0026] Figure 6 This is a cross-sectional view of the protective components and bridge deck of the simple steel trestle for tunnel crossing according to the present invention.

[0027] Figure 7 for Figure 6 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1, with reference to Figures 1 to 3 , which is the first embodiment of the present utility model, provides a bridge connection mechanism, including a bridge component 100, the bridge component 100 includes a beam platform 101, and a beam column 102 vertically clamped to the bottom of the beam platform 101.

[0032] Furthermore, it also includes a connecting component 200 for connecting the beam platform 101 and the beam column 102, including a locking member 201 arranged at the top of the beam column 102, and an insert block 202 arranged at the bottom of the beam platform 101; wherein, a locking groove 201a is provided at the top of the locking member 201, a locking rod 203 is provided in the locking groove 201a, the insert block 202 can be inserted into the locking groove 201a, and the side wall of the insert block 202 is provided with a card groove 202a adapted to the locking rod 203.

[0033] Specifically, the beam platform 101 and the beam column 102 are installed by snap-fitting through the connecting component 200, that is, the plug block 202 is inserted into the locking groove 201a from the top opening of the locking member 201. After insertion, the locking rod 203 is embedded in the slot 202a on the side wall of the plug block 202, realizing the interlocking and anti-detachment of the plug block 202 and the locking member 201, and completing the snap-fit ​​installation of the beam platform 101 and the beam column 102.

[0034] Example 2, reference Figures 1 to 3 , which is the second embodiment of the present utility model. It is different from the previous embodiment in that: in order to solve the problem of later disassembly of the beam platform 101 and the beam column 102, and to solve the problem of the locking member 201 intercepting and limiting the insertion block 202 when the insertion block 202 is inserted into the locking groove 201a, the outer part of the locking member 201 is sleeved with a sliding sleeve 204, and an elastic member 205 is provided between the sliding sleeve 204 and the beam column 102. The outer wall of the sliding sleeve 204 is provided with two symmetrical pressing plates 206, and the side wall of the locking member 201 is provided with a horizontally arranged long hole 201b, and the inner wall of the sliding sleeve 204 is provided with a brake groove 204a corresponding to the long hole 201b. The brake groove 204a is arranged obliquely, and the end of the brake groove 204a close to the middle of the locking groove 201a is the bottom end.

[0035] Furthermore, both ends of the locking rod 203 respectively pass through the adjacent elongated holes 201b and extend into the brake groove 204a, and the locking rod 203 can slide in the elongated hole 201b and the brake groove 204a; a receiving cavity 201c for accommodating the locking rod 203 is provided on one side of the locking groove 201a adjacent to the card slot 202a, and one end of the elongated hole 201b extends to the receiving cavity 201c.

[0036] Specifically, in this embodiment, the elastic member 205 selects a square spring 306 with the same profile. By setting the elastic member 205, it is used to lift the sliding sleeve 204 and keep the sliding sleeve 204 at the end of the locking member 201 under normal conditions; the sliding sleeve 204 can slide vertically outside the locking member 201, and the movement of the locking rod 203 is controlled by the cooperation of the braking groove 204a on the inner wall of the sliding sleeve 204 and the long hole 201b on the side wall of the locking member 201.

[0037] Specifically, as the sliding sleeve 204 moves, the intersection point of the long hole 201b and the brake groove 204a changes, driving the locking rod 203 to slide horizontally. When the locking rod 203 slides horizontally into the accommodating cavity 201c, the locking rod 203 no longer serves to intercept and lock the insert block 202. The insert block 202 can be freely inserted into or removed from the locking groove 201a. That is, at this time, the beam platform 101 and the beam column 102 can be quickly installed or removed.

[0038] Furthermore, the locking rod 203, the elongated hole 201b, the braking groove 204a, and the locking groove 202a are all symmetrical structures.

[0039] Example 3, reference Figures 4 to 7, which is the third embodiment of the utility model, further provides a simple steel trestle for tunnel crossing, including a bridge connection mechanism, two groups of beams 102 are arranged in parallel along the steel trestle erection path, and the beam platform 101 is arranged on the top of the two oppositely arranged beams 102; the beam platform 101 is in an inverted T shape, and a bridge plate 103 is provided between two adjacent beam platforms 101, and two groups of symmetrically arranged protective components 300 are provided on both sides of the bridge plate 103.

[0040] Furthermore, the protective assembly 300 includes a U-shaped guardrail 301 movably connected to the bridge plate 103, the side wall of the bridge plate 103 is provided with a groove 103a, the groove 103a is provided with an installation shaft 302, and both ends of the U-shaped guardrail 301 are provided with shaft holes 301a adapted to the installation shaft 302, and the two ends of the U-shaped guardrail 301 are movably sleeved on the outside of the installation shaft 302.

[0041] Specifically, the U-shaped guardrail 301 is movably connected to the mounting shaft 302, so that the U-shaped guardrail 301 has two states: parallel to the bridge deck 103 and perpendicular to the bridge deck 103; and when the U-shaped guardrail 301 is parallel to the bridge deck 103, it is convenient to disassemble and store; and when the U-shaped guardrail 301 is perpendicular to the bridge deck 103, it can play a side protection role to prevent goods or pedestrians walking on the steel trestle from falling.

[0042] Furthermore, a limiting groove 302a is provided on the outside of the mounting shaft 302 along the axial direction; the side wall of the shaft hole 301a is provided with a sliding groove 301b extending along its radial direction, and a sliding block 303 is provided in the sliding groove 301b, and the end of the sliding block 303 adjacent to the opening of the sliding groove 301b can be embedded in the limiting groove 302a.

[0043] Specifically, when the U-shaped guardrail 301 rotates to be perpendicular to the bridge deck 103, the sliding groove 301b is opposite to the limiting groove 302a, and the sliding block 303 in the sliding groove 301b slides into the limiting groove 302a, limiting the rotation of the U-shaped guardrail 301, so that the U-shaped guardrail 301 remains locked in a state perpendicular to the bridge deck 103.

[0044] Furthermore, a through hole 301c is provided at the bottom of the sliding groove 301b, and the end of the sliding block 303 away from the mounting shaft 302 is fixedly connected to the sliding column 304, and the end of the sliding column 304 away from the sliding block 303 passes through the through hole 301c and is fixedly connected to the pull rod 305; a spring 306 is provided in the sliding groove 301b, and the spring 306 is sleeved on the outside of the sliding column 304, and one end of the spring 306 is against the end face of the sliding groove 301b, and the other end is against the sliding block 303.

[0045] Specifically, the spring 306 pushes the sliding block 303, so when the sliding groove 301b is facing the limiting groove 302a, the sliding block 303 can slide into the limiting groove 302a under the pushing force of the spring 306, and by setting the pull rod 305, the sliding block 303 can be pulled out of the limiting groove 302a by the pull rod 305, releasing the rotation limit of the U-shaped guardrail 301, so that the U-shaped guardrail 301 can be rotated back to be parallel to the bridge plate 103, which is convenient for subsequent storage after disassembly.

[0046] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0048] It will be understood that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A bridge connection mechanism, characterized in that: include, A bridge assembly (100) comprises a beam platform (101) and a beam column (102) vertically clamped to the bottom of the beam platform (101); A connection assembly (200) for connecting the beam platform (101) and the beam column (102), comprising a locking member (201) arranged at the top of the beam column (102), and an insert block (202) arranged at the bottom of the beam platform (101); A locking groove (201a) is arranged at the top of the locking member (201), a locking rod (203) is arranged in the locking groove (201a), the insert block (202) can be inserted into the locking groove (201a), and a slot (202a) adapted to the locking rod (203) is arranged on the side wall of the insert block (202).

2. The bridge connection mechanism according to claim 1, characterized in that: The locking member (201) is sleeved with a sliding sleeve (204) on its exterior, and an elastic member (205) is provided between the sliding sleeve (204) and the beam column (102).

3. The bridge connection mechanism according to claim 2, characterized in that: The side wall of the locking member (201) is provided with a horizontally arranged long hole (201b), and the inner wall of the sliding sleeve (204) is provided with a braking groove (204a) corresponding to the long hole (201b), the braking groove (204a) is arranged obliquely, and the end of the braking groove (204a) close to the middle of the locking groove (201a) is the bottom end; The two ends of the locking rod (203) respectively penetrate the adjacent long holes (201b) and extend into the braking groove (204a), and the locking rod (203) can slide in the long holes (201b) and the braking groove (204a); A receiving cavity (201c) for receiving a locking rod (203) is provided on one side of the locking groove (201a) adjacent to the card groove (202a), and one end of the long hole (201b) extends to the receiving cavity (201c).

4. The bridge connection mechanism according to claim 2 or 3, characterized in that: The locking rod (203), the elongated hole (201b), the braking groove (204a), and the clamping groove (202a) are all symmetrical structures.

5. The bridge connection mechanism according to claim 2 or 3, characterized in that: The outer wall of the sliding sleeve (204) is provided with two symmetrical pressing plates (206).

6. A simple steel trestle for tunnel crossing, characterized in that: It comprises a bridge connection mechanism as claimed in any one of claims 1 to 5, wherein two groups of beams (102) are arranged in parallel along the steel trestle erection path, and the beam platform (101) is arranged on the top of two beams (102) arranged opposite to each other; The beam platform (101) is in an inverted T shape, a bridge plate (103) is arranged between two adjacent beam platforms (101), and two groups of symmetrically arranged protection components (300) are arranged on both sides of the bridge plate (103).

7. The simple steel trestle for tunnel crossing as claimed in claim 6, characterized in that: The protection assembly (300) comprises a U-shaped protection rail (301) movably connected to the bridge plate (103); a groove (103a) is provided on the side wall of the bridge plate (103); a mounting shaft (302) is provided in the groove (103a); shaft holes (301a) adapted to the mounting shaft (302) are provided at both ends of the U-shaped protection rail (301); and both ends of the U-shaped protection rail (301) are movably sleeved on the outside of the mounting shaft (302).

8. The simple steel trestle for tunnel crossing as claimed in claim 7, characterized in that: The exterior of the installation shaft (302) is provided with a limiting groove (302a) along the axial direction; The side wall of the shaft hole (301a) is provided with a sliding groove (301b) extending in its radial direction, and a sliding block (303) is provided in the sliding groove (301b). One end of the sliding block (303) adjacent to the opening of the sliding groove (301b) can be embedded in the limiting groove (302a).

9. The simple steel trestle for tunnel crossing as claimed in claim 8, characterized in that: A through hole (301c) is provided at the bottom of the sliding groove (301b); one end of the sliding block (303) away from the mounting shaft (302) is fixedly connected to a sliding column (304); and one end of the sliding column (304) away from the sliding block (303) passes through the through hole (301c) and is fixedly connected to a pull rod (305).

10. The simple steel trestle for tunnel crossing as claimed in claim 9, characterized in that: A spring (306) is arranged in the sliding groove (301b), and the spring (306) is sleeved on the outside of the sliding column (304), and one end of the spring (306) abuts against the end surface of the sliding groove (301b), and the other end abuts against the sliding block (303).

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