Cross beam separating horse stool with self-locking function

Abstract

The utility model belongs to bridge construction technical field, concretely relates to the cross beam separation type horse stool with self -locking function, including first stool body and second stool body, first stool body includes stool board, erects leg and guardrail, erects leg and installs in the stool board bottom, the guardrail sets up in the stool board one side, is located the first stool body's stool board bottom and is provided with first locking portion, second stool body is same with first stool body structure, is located the second stool body's stool board bottom and is provided with second locking portion, first locking portion and second locking portion are mutually locked, realize the relative setting of first stool body and second stool body.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, and more specifically, it relates to a cross-beam separation trestle with self-locking function. Background Technology

[0002] In high-speed railway bridge construction, a common structure is called the "three-wall bridge deck," which includes vertical wall A, vertical wall B, and a protective wall. These walls primarily support track equipment and ensure bridge deck safety. Traditionally, after the main bridge structure, the box girder, is erected, these three walls are poured on-site on the bridge deck. In this method, workers must work along the edges of the bridge, where there are no barriers on either side, constituting "edge work." A slight misstep could result in a fall, posing a high safety risk. To ensure safety, temporary guardrails are typically installed in the work area.

[0003] To ensure construction safety, a new construction technique has emerged in recent years – the "integrated erection of the three bridge deck walls." This technique requires the three bridge deck walls to be precast along with the box girders at the beam fabrication yard, and then transported and erected as a whole at the bridge site. While this improves construction efficiency and structural integrity, it also introduces new problems: because the three walls are pre-built, only about 50 centimeters of space is left between them and adjacent box girders. Workers then need to frequently cross from one box girder to another during subsequent construction, making movement difficult in the confined space.

[0004] In this situation, traditional bridge guardrails are not only inconvenient to install and affect construction operations, but also cannot effectively cover this narrow span area, greatly reducing the protective effect. At the same time, frequent crossings by workers pose a risk of falling, making safety difficult to guarantee.

[0005] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a cross-beam separation trestle with self-locking function, in order to achieve a more practical purpose. Utility Model Content

[0006] In view of the problems mentioned in the background art above, the present invention provides a cross-beam separation trestle with self-locking function.

[0007] The technical solution adopted by this utility model is as follows: a cross-beam split stool with self-locking function, including a first stool body and a second stool body. The first stool body includes a stool board, supporting legs and a guardrail. The supporting legs are installed at the bottom of the stool board, and the guardrail is set on one side of the stool board. A first locking part is provided at the bottom of the stool board of the first stool body. The second stool body has the same structure as the first stool body. A second locking part is provided at the bottom of the stool board of the second stool body. The first locking part and the second locking part are locked to each other to realize the relative setting of the first stool body and the second stool body.

[0008] Furthermore, the first locking part includes a locking box fixed to the bottom of the first stool board, the locking box having a locking cavity inside, and a locking opening on the outside of the locking box communicating with the locking cavity; the second locking part includes a locking block disposed at the bottom of the second stool board, the locking block being able to be inserted into the locking cavity through the locking opening to realize the connection and positioning of the first stool and the second stool.

[0009] Furthermore, the locking block includes an integrally formed mounting part and an insertion part. The mounting part is located at the bottom of the stool board of the second stool body, and the insertion part is L-shaped, with its free end able to extend into the locking port and slide into the locking cavity.

[0010] Furthermore, a fastening rod is threaded on one side of the locking box, and a fastening block is provided at one end of the fastening rod that extends into the locking cavity.

[0011] Furthermore, a rotating handle is provided at one end of the fastening rod located on the outside of the locking box.

[0012] Furthermore, the contact surfaces of the first stool and the second stool are mutually fitting inclined surfaces.

[0013] Furthermore, an alignment line is provided on the stool.

[0014] The beneficial effects of this utility model are:

[0015] 1. This trestle features a split structure design, consisting of two symmetrical, independent stools. Each stool has independent support capabilities, with its bottom support legs providing stable support on the box girder flanges. The stool platform provides a working platform, while a guardrail on one side offers edge protection for workers. By incorporating a first locking mechanism on the first stool and a second locking mechanism on the second stool, the two stools can be easily transported and positioned in their separate state. After being placed on either side of the box girder, they are mechanically connected via the locking mechanisms, forming a unified working platform spanning the structure. This "separate-then-assemble" design solves the problem of equipment passage and installation in confined spaces and ensures connection stability through mechanical locking. This allows workers to safely pass through and work on the connected platform, effectively mitigating the risk of falls from heights when crossing box girders without protection, and improving the controllability of construction safety. Furthermore, after use, both the first and second stools can be used individually as trestles for workers to rest.

[0016] 2. After the inclined surfaces are joined, a continuous bearing surface is formed. When subjected to vertical loads, a clamping force is generated between the contact surfaces, enhancing the rigid connection effect of the overall structure. Secondly, the inclined structure can also effectively disperse local stress, avoid stress concentration caused by point contact, and extend the service life of components. Attached Figure Description

[0017] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0018] Figure 1 This is an isometric drawing of the present invention;

[0019] Figure 2 This is a schematic diagram of the present invention viewed from below;

[0020] Figure 3 This is a schematic diagram of the first stool body of this utility model;

[0021] Figure 4 This is a schematic diagram of the second stool body of this utility model;

[0022] The attached diagram is labeled as follows:

[0023] First stool body 1, stool board 11, support legs 12, guardrail 13, alignment line 14, second stool body 2, locking box 3, locking cavity 31, locking opening 32, locking block 4, mounting part 41, insertion part 42, fastening rod 5, fastening block 51, rotating handle 52. Detailed Implementation

[0024] like Figures 1-4 As shown, the crossbeam-separated treadmill with self-locking function includes a first treadmill body 1 and a second treadmill body 2. The first treadmill body 1 includes a treadmill board 11, supporting legs 12, and a guardrail 13. The supporting legs 12 are installed at the bottom of the treadmill board 11, and the guardrail 13 is located on one side of the treadmill board 11. A first locking part is provided at the bottom of the treadmill board 11 of the first treadmill body 1. The second treadmill body 2 has the same structure as the first treadmill body 1. A second locking part is provided at the bottom of the treadmill board 11 of the second treadmill body 2. The first locking part and the second locking part are locked to each other to realize the relative arrangement of the first treadmill body 1 and the second treadmill body 2.

[0025] Adopting the above technical solution, the trestle features a split structural design, consisting of two symmetrical independent trestles. Each trestle has independent support functions, with its bottom support legs 12 providing stable support on the box girder flange. The trestle platform 11 provides a working platform, and the guardrail 13 on one side provides edge protection for workers. By setting a first locking part on the first trestle 1 and a second locking part on the second trestle 2, the two trestles are easy to transport and position in their separate state. After being placed on the box girders on both sides, they are mechanically connected by the locking parts, thus forming an integrated working platform spanning the structure. This "separate then combined" design solves the problem of equipment passage and installation in confined spaces and ensures connection stability through mechanical locking, allowing workers to safely pass and work on the connected platform. This effectively avoids the risk of falls from height when crossing the box girder without protection, improving the controllability of construction safety. Furthermore, after use, the first trestle 1 and the second trestle 2 can also be used separately as trestles for workers to rest.

[0026] As a preferred embodiment, the first locking part includes a locking box 3 fixed to the bottom of the seat plate 11 of the first stool body 1. The locking box 3 has a locking cavity 31 inside, and a locking opening 32 on the outside of the locking box 3, communicating with the locking cavity 31. The second locking part includes a locking block 4 located at the bottom of the seat plate 11 of the second stool body 2. The locking block 4 can be inserted into the locking cavity 31 through the locking opening 32, realizing the connection and positioning of the first stool body 1 and the second stool body 2. This structure avoids the complex operations of traditional bolt connections, which require multiple people to align holes, insert bolts, and tighten nuts. The main connection can be completed simply by "insertion," significantly improving installation efficiency. Simultaneously, this mechanical fitting method has self-positioning characteristics, ensuring stable alignment of the two stool bodies after connection, providing a reliable structural foundation for subsequent fastening and operations.

[0027] As a preferred embodiment, the locking block 4 includes an integrally formed mounting portion 41 and an insertion portion 42. The mounting portion 41 is located at the bottom of the stool plate 11 of the second stool body 2, and the insertion portion 42 is L-shaped, with its free end extending into the locking opening 32 and slidingly inserted into the locking cavity 31. The design of the L-shaped insertion portion 42 forms a hook structure. When the locking block 4 is fully inserted, the horizontal part of the L-shaped structure forms a mechanical obstruction in the vertical and horizontal directions and the front and back directions with the bottom surface of the locking box 3. Even under vertical vibration or slight impact, the locking block 4 cannot be dislodged from the locking cavity 31, thereby achieving the anti-dislodgement function.

[0028] As a preferred embodiment, a fastening rod 5 is threaded onto one side of the locking box 3, and a fastening block 51 is provided at the end of the fastening rod 5 that extends into the locking cavity 31. After the locking block 4 is inserted into the locking cavity 31, a preliminary connection is formed, but slight wobbling may still occur under dynamic loads, affecting overall stability. Therefore, by providing a threaded hole on the side wall of the locking box 3 and installing the fastening rod 5, which abuts against the side wall of the insertion part 42, it is ensured that the fastening block 51 continuously applies lateral pressure, further suppressing relative slippage in the horizontal direction and enhancing connection rigidity.

[0029] As a preferred embodiment, the fastening rod 5 is provided with a rotating handle 52 at one end outside the locking box 3, which facilitates tightening.

[0030] As a preferred embodiment, the contact surfaces of the first stool body 1 and the second stool body 2 are mutually fitting inclined surfaces. After the inclined surfaces are fitted together, a continuous bearing surface is formed. When subjected to vertical loads, a clamping force is generated between the contact surfaces, enhancing the rigid connection effect of the overall structure. Secondly, the inclined surface structure can effectively disperse local stress, avoid stress concentration caused by point contact, and extend the service life of the components.

[0031] As a preferred embodiment, alignment lines 14 are provided on the bench plate 11. Alignment lines 14 on the surfaces of the bench plates 11 of the first bench 1 and the second bench 2 provide an intuitive visual reference for on-site installation. When the two benches are placed on adjacent box girders, workers can determine the accuracy of the relative positions of the two benches by observing whether the alignment lines 14 are aligned.

[0032] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A crossbeam-separated trestle with self-locking function, characterized in that: include The first stool body (1) includes a stool board (11), supporting legs (12) and a guardrail (13). The supporting legs (12) are installed at the bottom of the stool board (11), and the guardrail (13) is located on one side of the stool board (11). A first locking part is provided at the bottom of the stool board (11) of the first stool body (1). The second stool (2) has the same structure as the first stool (1). A second locking part is provided at the bottom of the stool board (11) of the second stool (2). The first locking part and the second locking part lock each other to realize the relative setting of the first stool (1) and the second stool (2).

2. The cross-beam separating trestle with self-locking function according to claim 1, characterized in that: The first locking part includes a locking box (3) fixed to the bottom of the bench (11) of the first stool body (1). The locking box (3) has a locking cavity (31) inside, and a locking port (32) is opened on the outside of the locking box (3) and communicates with the locking cavity (31). The second locking part includes a locking block (4) provided at the bottom of the bench (11) of the second stool body (2). The locking block (4) can be inserted into the locking cavity (31) through the locking port (32) to realize the connection and positioning of the first stool body (1) and the second stool body (2).

3. The cross-beam separating trestle with self-locking function according to claim 2, characterized in that: The locking block (4) includes an integrally formed mounting part (41) and an insertion part (42). The mounting part (41) is located at the bottom of the bench (11) of the second bench body (2). The insertion part (42) is L-shaped, and its free end can extend into the locking port (32) and slide into the locking cavity (31).

4. The cross-beam separation trestle with self-locking function according to claim 3, characterized in that: A fastening rod (5) is threaded on one side of the locking box (3), and a fastening block (51) is provided at one end of the fastening rod (5) that extends into the locking cavity (31).

5. The cross-beam separation trestle with self-locking function according to claim 4, characterized in that: The fastening rod (5) is provided with a rotating handle (52) at one end outside the locking box (3).

6. The cross-beam split trestle with self-locking function according to claim 1, characterized in that: The contact surfaces of the first stool (1) and the second stool (2) are mutually fitting inclined surfaces.

7. The cross-beam split trestle with self-locking function according to any one of claims 1-6, characterized in that: An alignment line (14) is provided on the bench (11).

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