New and old building steel structure corridor splicing structure

Abstract

The utility model relates to the field of steel structure design, and discloses a new and old building steel structure corridor splicing structure which comprises a main steel frame and further comprises a supporting steel frame, a connecting steel frame, a transmission structure and an L-shaped plate, a connecting structure is rotationally arranged on one side of the interior of the supporting steel frame, and the connecting structure and the connecting steel frame are connected through the transmission structure. The L-shaped plate and the connecting steel frame are connected through a clamping structure, the transmission structure comprises a plurality of pawls, a toothed bar and a plurality of limiting plates, the pawls are meshed with the toothed bar, the toothed bar is fixedly arranged in the connecting steel frame, the connecting structure comprises a rotating rod, the pawls are rotationally arranged on a rod body of the rotating rod, and the limiting plates are arranged on the rotating rod. A connecting spring is fixedly connected between the pawl and the rotating rod, and the connecting structure rotates to drive the toothed bar to move through the pawl, so that the connecting steel frame and the main steel frame form a supporting whole, and construction is prevented from being affected by measurement errors.

Description

Technical Field

[0001] This utility model relates to the field of steel structure design, specifically to a new and old building steel structure connecting corridor assembly structure. Background Technology

[0002] Steel structure corridors are structures that connect two parts, typically used to provide pedestrian access or connect buildings with different functions. To facilitate the transportation and installation of steel structure corridors, a modular structure is usually adopted, which involves prefabricating various components in the factory and then assembling them on site. This method can improve construction efficiency and reduce on-site construction time. However, when there are certain errors in the on-site measurements, it is easy to cause the steel frame to be too short. When the steel frame is replaced, it is time-consuming and labor-intensive, which to some extent reduces the installation efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a new and old steel structure corridor assembly structure to solve the above problems. By rotating the connecting structure, the pawl drives the toothed rod to move, so that the connecting steel frame and the main steel frame form a supporting whole, preventing measurement errors from affecting construction.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A new steel structure corridor assembly structure for connecting old and new buildings includes a main steel frame, a supporting steel frame, a connecting steel frame, a transmission structure, and an L-shaped plate. The supporting steel frame has a connecting structure rotatably installed on one side inside. The connecting structure and the connecting steel frame are connected to each other through the transmission structure. The L-shaped plate and the connecting steel frame are connected by a snap-fit ​​structure.

[0006] The transmission structure includes multiple pawls, a rack, and multiple limiting plates. The pawls mesh with the rack, and the rack is fixedly installed inside the connecting steel frame. The connecting structure includes a rotating rod, and the pawls are rotatably mounted on the shaft of the rotating rod. A connecting spring is fixedly connected between the pawls and the rotating rod.

[0007] Furthermore, a connecting cap is fixedly provided at the lower end of the rotating rod, and the connecting steel frame is slidably disposed inside the supporting steel frame.

[0008] Furthermore, a return spring is fixedly connected between the supporting steel frame and the connecting steel frame.

[0009] Furthermore, the main steel frame has a sliding groove inside, and the L-shaped plate is slidably disposed inside the sliding groove.

[0010] Furthermore, the rotating rod is rotatably mounted inside the supporting steel frame.

[0011] Furthermore, the limiting plate is fixedly mounted on the shaft of the rotating rod near the pawl.

[0012] Furthermore, the snap-fit ​​structure includes a pressure spring and a snap-fit ​​block, the snap-fit ​​block being snap-fitted inside the connecting steel frame, and one end of the pressure spring being connected to the inside of the L-shaped plate.

[0013] Furthermore, the pressure spring is fixedly connected to the bottom side of the block.

[0014] Using the above structure, when using this device, firstly, the connecting steel frame is moved. When it gets close to the main steel frame, the operator uses a wrench to rotate the pawl on the connecting structure through the connecting cap. Then, the pawl drives the toothed rod to move. Subsequently, the connecting steel frame on the toothed rod is inserted into the main steel frame. When the connecting steel frame is inserted into the main steel frame, the connecting steel frame presses against the L-shaped plate, causing the locking block on the L-shaped plate to lock and fix the connecting steel frame, forming a whole.

[0015] In summary, the beneficial effects of this utility model are as follows: The supporting steel frame and main steel frame facilitate handling; simultaneously, when there is a certain distance between the main steel frame and the supporting steel frame, the connecting steel frame is first pulled and inserted into the main steel frame, increasing the installation speed. Then, by rotating the handle, the connecting structure uses a ratchet to drive the connecting steel frame on the toothed rod to press against the L-shaped plate inside the main steel frame. This facilitates the connection between the connecting structure and the main steel frame via the snap-fit ​​structure on the L-shaped plate. This allows the supporting steel frame, connecting steel frame, and main steel frame to form a unified support structure, preventing errors from affecting the work, saving time and effort, and improving installation efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an axonometric view of the present invention;

[0018] Figure 2 This is a side view of the gear rack structure of this utility model;

[0019] Figure 3 yes Figure 2 Enlarged view of point A;

[0020] Figure 4 yes Figure 3 Enlarged view of point B;

[0021] Figure 5 This is an axonometric view of the support structure of this utility model.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Supporting steel frame; 2. Connecting structure; 3. Transmission structure; 4. Main steel frame; 5. L-shaped plate; 6. Connecting steel frame; 7. Snap-fit ​​structure; 8. Slide groove; 9. Return spring; 201. Rotating rod; 202. Limiting plate; 203. Connecting cap; 301. Toothed rod; 302. Pawl; 303. Connecting spring; 701. Locking block; 702. Pressure spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] See Figures 1-5 As shown, this utility model provides a new and old steel structure corridor assembly structure, including a main steel frame 4, a supporting steel frame 1, a connecting steel frame 6, a transmission structure 3, and an L-shaped plate 5. The supporting steel frame 1, the connecting steel frame 6, and the main steel frame 4 form a supporting whole, which facilitates installation. A connecting structure 2 is rotatably provided on one side of the inside of the supporting steel frame 1. The connecting structure 2 and the connecting steel frame 6 are connected to each other through the transmission structure 3. The transmission structure 3 is similar to a ratchet structure, which facilitates the direct extraction of the connecting steel frame 6 from the inside of the supporting steel frame 1 and insertion into the inside of the main steel frame 4, thereby improving the installation speed. The L-shaped plate 5 and the connecting steel frame 6 are connected by a snap-fit ​​structure 7. When the connecting steel frame 6 is connected to the main steel frame 4 through the snap-fit ​​structure 7, the L-shaped plate 5... When the L-shaped plate 5 on the steel frame 4 is clamped and fixed, it is convenient to form the steel frame as a whole for support. When setting up the foundation of the connecting corridor on the existing building, special inverted conical adhesive anchor bolts are used for rebar installation, which effectively saves space and speeds up the construction progress. The positioning of the pre-embedded bolts of the independent foundation steel structure is achieved by making special positioning plates to prevent them from shifting or deviating during the pouring process. When welding the studs of the steel truss floor deck, ceramic ring welding is used to ensure that the floor deck and steel beam are tightly welded. When constructing the construction joint, cement-based penetrating crystalline waterproof coating is applied to increase its structural durability. The sealing construction of the settlement post-pouring strip is carried out 60 days after the main construction of the independent foundation of the connecting corridor is completed and the settlement is stable, so as to reduce the impact of different settlement amounts caused by the combination of new and old buildings.

[0026] The transmission structure 3 includes multiple pawls 302, a rack 301, and multiple limiting plates 202. The limiting plates 202 facilitate the limiting of the pawls 302, ensuring that the pawls 302 can only rotate in one direction. The pawls 302 mesh with the rack 301. When a worker uses a wrench to rotate the pawls 302 on the connecting structure 2 via the connecting cap 203, the pawls 302 drive the rack 301 to move. Subsequently, the connecting steel frame 6 on the rack 301 can be moved and inserted into the main steel frame 4 for splicing. The rack 301 is fixedly installed inside the connecting steel frame 6. The connecting structure 2 includes a rotating rod 201. The pawls 302 are rotatably mounted on the rod body of the rotating rod 201. A connecting spring 303 is fixedly connected between the pawls 302 and the rotating rod 201. The connecting spring 303 facilitates the reset of the pawls 302, allowing for multiple uses.

[0027] Furthermore, a connecting cap 203 is fixedly provided at the lower end of the rotating rod 201. The connecting cap 203 is hexagonal, which makes it convenient for workers to move the connecting cap 203 by using a wrench. The connecting steel frame 6 is slidably arranged inside the supporting steel frame 1.

[0028] Furthermore, a return spring 9 is fixedly connected between the supporting steel frame 1 and the connecting steel frame 6. The return spring 9 can move the connecting steel frame 6 into the interior of the supporting steel frame 1, which facilitates the transportation of the steel frame.

[0029] Furthermore, the main steel frame 4 has a sliding groove 8 inside, and the L-shaped plate 5 is slidably disposed inside the sliding groove 8. When the connecting steel frame 6 is inserted into the main steel frame 4, the L-shaped plate 5 can be squeezed, so that the snap-fit ​​structure 7 on the L-shaped plate 5 can be snap-fitted and fixed with the connecting steel frame 6.

[0030] Furthermore, the rotating rod 201 is rotatably disposed inside the supporting steel frame 1, and the force received by the connecting cap 203 is conveniently transmitted to the pawl 302 through the rotating rod 201.

[0031] Furthermore, the limiting plate 202 is fixedly installed on the rod body of the rotating rod 201 near the pawl 302. Through the limiting plate 202, the pawl 302 can be limited in one direction, so that the pawl 302 can only move in one direction, which makes it convenient to directly pull out the connecting steel frame 6 and insert it into the interior of the main steel frame 4.

[0032] Furthermore, the snap-fit ​​structure 7 includes a pressure spring 702 and a snap-fit ​​block 701. The snap-fit ​​block 701 is snap-fitted inside the connecting steel frame 6. One end of the pressure spring 702 is connected to the inside of the L-shaped plate 5. The pressure spring 702 facilitates the reset of the snap-fit ​​block 701.

[0033] Furthermore, the pressure spring 702 is fixedly connected to the bottom side of the locking block 701, and the locking block 701 is slidably disposed inside the L-shaped plate 5. At the same time, the locking block 701 facilitates the fixing of the L-shaped plate 5 and the connecting steel frame 6 together.

[0034] With the above structure, when using this device, firstly, the connecting steel frame 6 is moved. When it approaches the main steel frame 4, the operator uses a wrench to rotate the pawl 302 on the connecting structure 2 through the connecting cap 203. Then, the pawl 302 drives the toothed rod 301 to move. Subsequently, the connecting steel frame 6 on the toothed rod 301 is inserted into the main steel frame 4. When the connecting steel frame 6 is inserted into the main steel frame 4, the connecting steel frame 6 presses against the L-shaped plate 5, causing the locking block 701 on the L-shaped plate 5 to lock and fix the connecting steel frame 6, thereby forming a whole.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A steel-framed connecting corridor for new and old buildings, comprising a main steel frame (4), characterized in that, It also includes a supporting steel frame (1), a connecting steel frame (6), a transmission structure (3) and an L-shaped plate (5). The supporting steel frame (1) has a connecting structure (2) rotatably installed on one side inside. The connecting structure (2) and the connecting steel frame (6) are connected to each other through the transmission structure (3). The L-shaped plate (5) and the connecting steel frame (6) are connected through a snap-fit ​​structure (7). The transmission structure (3) includes multiple pawls (302), a rack (301) and multiple limiting plates (202). The pawls (302) mesh with the rack (301). The rack (301) is fixedly installed inside the connecting steel frame (6). The connecting structure (2) includes a rotating rod (201). The pawls (302) are rotatably installed on the rod body of the rotating rod (201). A connecting spring (303) is fixedly connected between the pawls (302) and the rotating rod (201).

2. The steel structure connecting corridor between new and old buildings as described in claim 1, characterized in that: The lower end of the rotating rod (201) is fixedly provided with a connecting cap (203), and the connecting steel frame (6) is slidably disposed inside the supporting steel frame (1).

3. The steel structure connecting corridor between new and old buildings according to claim 1, characterized in that: A return spring (9) is fixedly connected between the supporting steel frame (1) and the connecting steel frame (6).

4. The steel structure connecting corridor between new and old buildings as described in claim 1, characterized in that: The main steel frame (4) has a sliding groove (8) inside, and the L-shaped plate (5) is slidably disposed inside the sliding groove (8).

5. The steel structure connecting corridor between new and old buildings as described in claim 1, characterized in that: The rotating rod (201) is rotatably mounted inside the supporting steel frame (1).

6. The steel structure connecting corridor between new and old buildings according to claim 1, characterized in that: The limiting plate (202) is fixedly installed on the rod body of the rotating rod (201) near the pawl (302).

7. The steel structure connecting corridor between new and old buildings as described in claim 1, characterized in that: The snap-fit ​​structure (7) includes a pressure spring (702) and a snap-fit ​​block (701). The snap-fit ​​block (701) is snap-fitted inside the connecting steel frame (6), and one end of the pressure spring (702) is connected to the inside of the L-shaped plate (5).

8. The steel structure connecting corridor between new and old buildings according to claim 7, characterized in that: The pressure spring (702) is fixedly connected to the bottom side of the locking block (701).

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