Prestressed concrete laminated slab slab staggering prevention control device

Abstract

The utility model relates to the technical field of concrete laminated slabs, and discloses a prestressed concrete laminated slab staggering prevention control device which comprises two identical laminated slab bodies, splice plates are installed in the middles of the opposite ends of the laminated slab bodies on the left side and the right side, and sliding rods are connected to the front ends and the rear ends of the inner walls of the splice plates in a sliding mode. Anti-deviation plates are fixedly connected to the opposite ends of the sliding rods on the front side and the rear side, the inner walls of the anti-deviation plates are connected with the outer walls of the laminated slab bodies on the two sides through clamping assemblies, and alignment assemblies are installed at the opposite ends of the anti-deviation plates on the front side and the rear side. According to the utility model, by arranging the sliding rods and the anti-deviation insertion rods, when the two adjacent laminated slab bodies are spliced and combined together, the middle parts of the two adjacent laminated slab bodies can be tightly fixed in a larger area under the matching of the splicing plates, the sliding rods, the anti-deviation plates, the two-way screw rods, the connecting plates, the clamping plates, the anti-deviation insertion rods, the threaded sliding blocks and the limiting grooves, and splicing gaps are consistent; connection is more stable, and dislocation is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete composite slabs, in particular to an anti-displacement control device for prestressed concrete composite slabs. Background Art

[0002] The prestressed concrete composite slab is a structural slab, usually used for floor slabs, floorings, roofs, etc. of buildings. It is a slab composed of prestressed concrete and other material layers stacked together, with high load-bearing capacity and flexural resistance. This kind of slab is widely used, especially in the construction of subway tunnels, a large number of prestressed concrete composite slabs are required.

[0003] After retrieval, the Chinese patent document with the publication number CN215563718U discloses a ZDB anti-displacement control device for prestressed concrete composite slabs, which includes two composite slabs. A screw rod is arranged between the two composite slabs. The top of the screw rod is fixedly connected with a bolt head, and the bolt head abuts against the composite slab. A bolt nut is sleeved on the screw rod. A threaded hole is opened on the bolt nut. The screw rod passes through the threaded hole and is threadedly connected with the threaded hole. A gasket is arranged between the bolt nut and the composite slab. The gasket is sleeved on the screw rod. A cork is arranged between the gasket and the composite slab. The cork is sleeved on the screw rod. The diameter of the screw rod is 5 mm, the length of the screw rod is 50 mm, the material of the cork is cork oak wood, and the material of the bolt head is stainless steel. The utility model makes multiple composite slabs be in the same horizontal plane during splicing, the joint seams are more uniform, and the splicing quality is high;

[0004] Based on the above patent, in the background art mentioned, during splicing, the composite slabs are prone to problems such as uneven joint seams, resulting in poor splicing quality of the composite slabs. In response to this, for this technical problem, the above patent only adds bolts between adjacent two composite slabs to clamp the connection part. This positioning method causes only a single point at the splicing part to be stably connected, with a small contact area. After being subjected to external forces, excessive stress is easily formed around the bolts, leading to damage to the composite slabs. The present application proposes an anti-displacement control device for prestressed concrete composite slabs. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose an anti-displacement control device for prestressed concrete composite slabs, which can increase the contact area at the connection part, and the connection is stable and not prone to dislocation.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A prestressed concrete composite slab anti-offset control device, comprising two identical composite slab bodies. At the middle of the opposite ends of the left and right sides of the composite slab bodies, splicing plates are installed. At the front and rear ends of the inner wall of the splicing plates, sliding rods are slidably connected. At the opposite ends of the front and rear sides of the sliding rods, anti-offset plates are fixedly connected. The outer walls of the two composite slab bodies on both sides are connected to the inner wall of the anti-offset plate through a clamping assembly. At the opposite ends of the front and rear sides of the anti-offset plates, an alignment assembly is installed.

[0008] Further, the clamping assembly includes a bidirectional screw rotatably connected to the middle of the inner wall of the anti-offset plate. The thread directions on the upper and lower sides of the outer wall of the bidirectional screw are opposite. Threaded sliders are threadedly connected to the upper and lower sides of the outer wall of the bidirectional screw. At the opposite ends of the upper and lower sides, connecting plates are fixedly connected. At the left and right ends of the connecting plates, clamping plates are fixedly connected. At the opposite ends of the upper and lower sides of the clamping plates, a number of anti-offset insertion rods are fixedly connected.

[0009] Further, the outer walls of the threaded sliders are slidably connected to the inner wall of the anti-offset plate, and the top and bottom ends of the bidirectional screw penetrate through the outer walls of the upper and lower threaded sliders.

[0010] Further, a number of limiting grooves are provided on the opposite sides of the top and bottom ends of the left and right composite slab bodies. A number of through holes that are in fit with the shape of the limiting grooves are provided on the left and right inner walls of the anti-offset plate. The shapes of the opposite ends of the outer walls of the upper and lower anti-offset insertion rods are in fit with the inner wall shapes of the limiting grooves.

[0011] Further, the alignment assembly includes extension rods fixedly connected to the opposite ends of the front and rear anti-offset plates. At the opposite ends of the front and rear extension rods, receiving plates are fixedly connected. Telescopic alignment plates are slidably connected to the left and right sides of the inner wall of the receiving plates. At the opposite ends of the left and right telescopic alignment plates, a number of springs are fixedly connected.

[0012] Further, the left and right width of the receiving plate is smaller than the width between the left and right composite slab bodies.

[0013] Further, extension plates are fixedly connected to the edges at the left and right ends of the splicing plate and the anti-offset plate. The opposite ends of the upper and lower extension plates are tightly attached to the outer wall surfaces of the composite slab bodies.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, by setting the sliding rods and the anti-offset insertion rods, when two adjacent composite slab bodies are spliced and combined together, the middle part can be fixed more tightly under the cooperation of the splicing plate, the sliding rods, the anti-offset plates, the bidirectional screw, the connecting plates, the clamping plates, the anti-offset insertion rods, the threaded sliders and the limiting grooves. The joint gaps are consistent, the connection is more stable, and it is not easy to be misaligned.

[0016] 2. In the present utility model, by providing the telescopic alignment plate and the spring, when the two laminated plate bodies are spliced, the docking part can be aligned at both sides without dislocation under the cooperation of the extension rod, the receiving plate, the spring and the telescopic alignment plate, thereby increasing the splicing integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of a prestressed concrete laminated plate anti-offset control device proposed by the present utility model;

[0018] Figure 2 is a splicing plate view of a prestressed concrete laminated plate anti-offset control device proposed by the present utility model;

[0019] Figure 3 is a sectional view of the splicing plate of a prestressed concrete laminated plate anti-offset control device proposed by the present utility model;

[0020] Figure 4 is a schematic structural view of the laminated plate body of a prestressed concrete laminated plate anti-offset control device proposed by the present utility model;

[0021] Figure 5 is a sectional view of the anti-offset plate of a prestressed concrete laminated plate anti-offset control device proposed by the present utility model.

[0022] Legend:

[0023] 1. Laminated plate body; 2. Limit groove; 3. Extension rod; 4. Splicing plate; 5. Bidirectional screw; 6. Anti-offset plate; 7. Receiving plate; 8. Telescopic alignment plate; 9. Connecting plate; 10. Clamping plate; 11. Anti-offset insertion rod; 12. Slide bar; 13. Spring; 14. Threaded slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figures 1-5, an embodiment provided by the present utility model: a prestressed concrete composite slab anti-offset control device, including two identical composite slab bodies 1. At the middle of the opposite ends of the left and right composite slab bodies 1, a splicing plate 4 is installed. At the front and rear ends of the inner wall of the splicing plate 4, sliding rods 12 are slidably connected. At the opposite ends of the front and rear sliding rods 12, anti-offset plates 6 are fixedly connected. The inner wall of the anti-offset plate 6 is connected to the outer walls of the two composite slab bodies 1 through a clamping assembly. At the opposite ends of the front and rear anti-offset plates 6, an alignment assembly is installed. At the edges of the left and right ends of the splicing plate 4 and the anti-offset plate 6, extension plates are fixedly connected. At the opposite ends of the upper and lower extension plates, they are tightly attached to the outer surface of the composite slab body 1.

[0026] Specifically, sufficient space is reserved at the butting surfaces of different composite slab bodies 1 for placing the splicing plate 4. Facing composite slab bodies 1 with different sizes, the sizes of the produced splicing plates 4 are also different. The extension plates facilitate increasing the contact area between the splicing plate 4 and the anti-offset plate 6 and the composite slab body 1, thereby facilitating more stable fixation between the composite slab bodies 1.

[0027] The clamping assembly includes a bidirectional screw rod 5 rotatably connected to the middle of the inner wall of the anti-offset plate 6. The thread directions on the upper and lower sides of the outer wall of the bidirectional screw rod 5 are opposite. On the upper and lower sides of the outer wall of the bidirectional screw rod 5, threaded sliders 14 are threadedly connected. At the opposite ends of the upper and lower sides, connecting plates 9 are fixedly connected. At the left and right ends of the connecting plates 9, clamping plates 10 are fixedly connected. At the opposite ends of the upper and lower clamping plates 10, a number of anti-offset insertion rods 11 are fixedly connected. The outer walls of the threaded sliders 14 are slidably connected to the inner wall of the anti-offset plate 6. The top and bottom ends of the bidirectional screw rod 5 penetrate through the outer walls of the upper and lower threaded sliders 14. At the opposite sides of the top and bottom ends of the left and right composite slab bodies 1, a number of limiting grooves 2 are opened. On the left and right inner walls of the anti-offset plate 6, a number of through holes with shapes matching those of the limiting grooves 2 are opened. The shapes of the opposite ends of the outer walls of the upper and lower anti-offset insertion rods 11 match the shapes of the inner walls of the limiting grooves 2.

[0028] Specifically, place the splicing plate 4 at the middle position between the butting of the two composite slab bodies 1. Then, according to the lengths of different composite slab bodies 1, pull out the anti-offset plate 6 from the inner wall of the splicing plate 4 through the sliding rod 12, so that the anti-offset plate 6 moves to the position of the limiting grooves 2 of the composite slab bodies 1 with different lengths. Then, by rotating the bidirectional screw rod 5, the threaded sliders 14 slide on the inner wall of the anti-offset plate 6, thereby driving the connecting plates 9 and the clamping plates 10 on the upper and lower sides to move relatively, so that the anti-offset insertion rods 11 pass through the through holes on the outer wall of the anti-offset plate 6 and are combined with the limiting grooves on the outer walls of the two composite slab bodies 1, thus stably splicing the two identical composite slab bodies together.

[0029] The alignment component includes extension rods 3 fixedly connected to the opposite ends of the anti-deviation plates 6 on the front and rear sides. At the opposite ends of the extension rods 3 on the front and rear sides, receiving plates 7 are fixedly connected. On the left and right sides of the inner wall of the receiving plate 7, telescopic alignment plates 8 are slidably connected. On the opposite ends of the left and right telescopic alignment plates 8, a plurality of springs 13 are fixedly connected. The width of the receiving plate 7 from left to right is smaller than the width between the left and right laminated plate bodies 1.

[0030] Specifically, during the process of the anti-deviation plates 6 moving to both sides, the two extension rods 3 can move to both sides of the splicing position of the two laminated plate bodies 1. After completely leaving the splicing line position of the two laminated plate bodies 1, the telescopic alignment plates 8 will pop out of the inner wall of the receiving plate 7 under the action of the springs 13, so that the outer walls of the two telescopic alignment plates 8 are respectively in close contact with the outer walls of the two laminated plate bodies 1, thereby preventing dislocation at the parallel position of the docking part of the two laminated plate bodies 1.

[0031] Working principle: First, place two identical laminated plate bodies 1 flat and install them together. Then, place the splicing plate 4 at the middle position of the docking of the two laminated plate bodies 1. Then, according to the lengths of different laminated plate bodies 1, pull out the anti-deviation plates 6 from the inner wall of the splicing plate 4 through the slide rods 12, so that the anti-deviation plates 6 move to the position of the limiting grooves 2 of the laminated plate bodies 1 with different lengths. Then, rotate the bidirectional screw rod 5 to make the threaded slider 14 slide on the inner wall of the anti-deviation plate 6, thereby driving the connecting plates 9 and clamping plates 10 on the upper and lower sides to move relatively, so that the anti-deviation insertion rods 11 pass through the through holes on the outer wall of the anti-deviation plate 6 and are combined with the limiting grooves on the outer walls of the two laminated plate bodies 1, thus stably splicing the two identical laminated plate bodies together, increasing the contact area, improving the splicing stability. During the process of the anti-deviation plates 6 moving to both sides, the two extension rods 3 can move to both sides of the splicing position of the two laminated plate bodies 1. After completely leaving the splicing line position of the two laminated plate bodies 1, the telescopic alignment plates 8 will pop out of the inner wall of the receiving plate 7 under the action of the springs 13, so that the outer walls of the two telescopic alignment plates 8 are respectively in close contact with the outer walls of the two laminated plate bodies 1, thereby preventing dislocation at the parallel position of the docking part of the two laminated plate bodies 1 and ensuring alignment at the corners.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A prestressed concrete composite slab anti-misalignment control device, comprising two identical composite slab bodies (1), characterized in that: A splicing plate (4) is installed in the middle of the opposite ends of the left and right sides of the composite plate body (1), and the front and rear ends of the inner wall of the splicing plate (4) are slidably connected with sliding rods (12), and the opposite ends of the sliding rods (12) on the front and rear sides are fixedly connected with anti-deflection plates (6), and the inner wall of the anti-deflection plate (6) is connected to the outer wall of the composite plate body (1) on both sides through a clamping component, and the opposite ends of the front and rear sides of the anti-deflection plates (6) are installed with alignment components.

2. The device for preventing misalignment of a prestressed concrete composite slab according to claim 1, characterized in that: The clamping assembly comprises a bidirectional screw (5) rotatably connected to the middle of the inner wall of the anti-deflection plate (6), the threads of the upper and lower outer walls of the bidirectional screw (5) are in opposite directions, the upper and lower outer walls of the bidirectional screw (5) are threadedly connected to threaded sliders (14), the opposite ends of the upper and lower ends are fixedly connected to connecting plates (9), the left and right ends of the connecting plates (9) are fixedly connected to clamping plates (10), and the opposite ends of the upper and lower clamping plates (10) are fixedly connected to a plurality of anti-deflection plug rods (11).

3. The device for preventing misalignment of a prestressed concrete composite slab according to claim 2, characterized in that: The outer wall of the threaded slider (14) is slidably connected to the inner wall of the anti-deflection plate (6), and the top and bottom ends of the bidirectional screw (5) penetrate the outer wall of the threaded slider (14) on both upper and lower sides.

4. The device for preventing misalignment of a prestressed concrete composite slab according to claim 2, characterized in that: A plurality of limit grooves (2) are provided on the top and bottom opposite sides of the composite plate bodies (1) on the left and right sides, a plurality of through holes matching the shape of the limit grooves (2) are provided on the inner walls on the left and right sides of the anti-deflection plates (6), and the shape of the opposite ends of the outer walls of the anti-deflection plug rods (11) on the upper and lower sides matches the shape of the inner walls of the limit grooves (2).

5. The device for preventing misalignment of a prestressed concrete composite slab according to claim 1, characterized in that: The alignment assembly comprises an extension rod (3) fixedly connected to the opposite ends of the anti-deflection plates (6) on the front and rear sides, the opposite ends of the extension rods (3) on the front and rear sides are fixedly connected to a receiving plate (7), the inner wall of the receiving plate (7) is slidably connected to a telescopic alignment plate (8) on both sides, and the opposite ends of the telescopic alignment plates (8) on the left and right sides are fixedly connected to a plurality of springs (13).

6. The device for preventing misalignment of a prestressed concrete composite slab according to claim 5, characterized in that: The left-right width of the receiving plate (7) is smaller than the width between the left and right sides of the stacking plate bodies (1).

7. The device for preventing misalignment of a prestressed concrete composite slab according to claim 1, characterized in that: Extension plates are fixedly connected to the left and right edges of the splicing plate (4) and the anti-deflection plate (6), and opposite ends of the extension plates on the upper and lower sides are tightly attached to the outer wall surface of the composite plate body (1).

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