Limiting device for precast beam pouring

Abstract

The utility model discloses a limiting device for precast beam pouring, which belongs to the technical field of precast beam pouring and comprises a splicing side plate, a fixed side plate is mounted on one side of the splicing side plate, two cross plates are movably connected to an inner cavity of the splicing side plate, and four connecting plates are symmetrically and fixedly connected to two sides of the splicing side plate. Four U-shaped frames are symmetrically and fixedly connected to the two sides of the splicing side plates, moving rods are arranged in inner cavities of the U-shaped frames in a penetrating and inserting mode, elastic balls are fixedly connected to one ends of the moving rods, and springs are fixedly connected to the outer surfaces of the moving rods; a movable plate and a movable rod are manually moved outwards to drive an elastic ball to leave the outer surface of a splicing side plate, at the moment, a spring is stretched, then the movable plate is loosened, the movable rod and the elastic ball are driven to return to the original position through resilience force of the spring to collide with the splicing side plate, vibration is generated, bubbles are eliminated, and the problem of air holes in concrete is effectively solved; and the overall compactness of the precast beam is improved.

Description

Technical Field

[0001] This utility model relates to the field of precast beam casting technology, and more specifically, to a limiting device for precast beam casting. Background Technology

[0002] Precast beam casting restraint devices are tools or equipment used in construction engineering to ensure that precast beams maintain the correct shape and size during concrete pouring. These restraint devices are crucial for ensuring the quality of precast beams. Restraint devices (such as formwork systems) can ensure that precast beams maintain the precise shape and size required by the design when pouring concrete. Without restraint devices, concrete may flow or expand under gravity, leading to dimensional deviations in the final product. Therefore, it is essential to ensure that the final product meets the design requirements. The design of these restraint devices is usually customized according to the specific size and shape of the precast beam. They may be made of steel, wood, or other suitable materials and need to have sufficient strength and stability to withstand the pressure of concrete and other external forces during construction.

[0003] Chinese Patent Publication No. CN214644667U discloses a limiting device for precast beam casting, comprising a base plate, a first limiting plate, and a second limiting plate. The first limiting plate is fixedly connected to the upper left side of the base plate, and the second limiting plate is provided at the upper right side of the base plate. A groove is provided on the excavated side of the base plate, and a slider is provided inside the groove. A pulley is provided inside the slider. A snap-fit ​​groove is provided at the upper right side of the base plate. A first support rod is provided at the bottom inner side of both the first and second limiting plates, and a second support rod is fixedly connected to the bottom outer side of both the first and second limiting plates. A moving plate is fixedly connected to the bottom of the second limiting plate, and a movable cavity is provided inside the movable cavity, which is equipped with a snap-fit ​​structure. This utility model facilitates the adjustment of the size of the precast beam, reduces the labor intensity of construction workers, increases production efficiency, and increases economic benefits.

[0004] In practical applications, existing technologies require the concrete mortar to be mixed evenly during the casting of precast beams. However, air inevitably gets mixed into the concrete during mixing, causing air bubbles to remain inside the concrete and reducing the structural strength. Therefore, a limiting device for casting precast beams is proposed. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a limiting device for precast beam casting. It manually moves a moving plate and a moving rod outward to drive an elastic ball away from the outer surface of the splicing side plate. At this time, the spring is stretched. Then, the moving plate is released, and the spring's own rebound force drives the moving rod and elastic ball back to their original position and hit the splicing side plate, causing it to vibrate and eliminate air bubbles. This effectively solves the problem of air pores inside the concrete and improves the overall density of the precast beam.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A limiting device for casting precast beams includes a splicing side plate, a fixed side plate installed on one side of the splicing side plate, two cross plates movably connected to the inner cavity of the splicing side plate, four connecting plates symmetrically and fixedly connected to both sides of the splicing side plate, four U-shaped frames symmetrically and fixedly connected to both sides of the splicing side plate, a movable rod inserted into the inner cavity of the U-shaped frame, an elastic ball fixedly connected to one end of the movable rod, and a spring fixedly connected to the outer surface of the movable rod.

[0010] Furthermore, the splicing side panel is U-shaped, and the splicing side panel and the fixed side panel are fixedly connected by bolts and threaded sleeves.

[0011] Furthermore, there are two splicing side panels, and the two adjacent splicing side panels are fixedly connected by bolts and threaded sleeves.

[0012] Furthermore, there are two cross plates symmetrically arranged on the upper and lower sides of the splicing side plate, and two screws are symmetrically fixedly connected to one side of each cross plate.

[0013] Furthermore, one end of the screw is threaded through the connecting plate and connected to a second threaded sleeve, the outer surface of the second threaded sleeve abutting against the outer surface of the connecting plate.

[0014] Furthermore, the outer surface of the elastic ball abuts against the outer surface of the splicing side plate, a movable plate is fixedly connected to the end of the movable rod away from the elastic ball, and the two ends of the spring are fixedly connected to one side of the movable plate and the outer surface of the U-shaped frame, respectively.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This scheme uses spliced ​​side panels as the main template to define the side boundary of the precast beam. It is designed in a U-shape and is tightly connected to the fixed side panel by bolts and threaded sleeves. The number of spliced ​​side panels can be selected according to the length of the beam to be poured, which can flexibly adapt to different precast beam size requirements. The two spliced ​​side panels are fixed together by bolts and threaded sleeves. The fixed side panel and the spliced ​​side panel are used together to form a whole rectangular frame, providing stable support and ensuring that the whole structure will not deform during the concrete pouring process. Then, the two cross plate bolts and threaded sleeves are fixedly connected to the connecting plate to form the bottom plate and the top plate. The spliced ​​side panel, the fixed side panel and the cross plate are used together to form a whole closed rectangular frame, which shapes the concrete mortar filling inside. Each component is easy to assemble and disassemble, reducing preparation time and labor intensity and improving construction efficiency.

[0018] (2) This solution involves manually moving the moving plate and moving rod outward to drive the elastic ball away from the outer surface of the splicing side plate. At this time, the spring is stretched. Then, the moving plate is released and the spring's own rebound force drives the moving rod and elastic ball back to their original position to hit the splicing side plate, causing it to vibrate and eliminate air bubbles. This effectively solves the problem of air pores inside the concrete and improves the overall density of the precast beam. Dense concrete has higher compressive strength and durability, extending the service life of the precast beam. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the overall structure of this utility model broken down.

[0021] Figure 3 This is a partial structural schematic diagram of the present invention;

[0022] Figure 4 This is a partial structural breakdown diagram of the present invention.

[0023] Explanation of the labels in the diagram:

[0024] 1. Splicing side panel; 2. Fixing side panel; 3. Bolt; 4. Screw sleeve one; 5. Cross plate; 6. Connecting plate; 7. Screw; 8. Screw sleeve two; 9. U-shaped frame; 10. Moving rod; 11. Elastic ball; 12. Moving plate; 13. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1

[0029] Reference Figure 1 , Figure 2 and Figure 3 This is the first embodiment of the present utility model. This embodiment provides a limiting device for casting precast beams, including a splicing side plate 1, a fixed side plate 2 installed on one side of the splicing side plate 1, two cross plates 5 movably connected to the inner cavity of the splicing side plate 1, and four connecting plates 6 symmetrically fixedly connected to both sides of the splicing side plate 1.

[0030] Specifically, the splicing side plate 1 is U-shaped. The splicing side plate 1 and the fixed side plate 2 are fixedly connected by bolts 3 and threaded sleeves 4. There are two splicing side plates 1. The two adjacent splicing side plates 1 are fixedly connected by bolts 3 and threaded sleeves 4. There are two cross plates 5, which are symmetrically arranged on the upper and lower sides of the splicing side plate 1. Two screws 7 are symmetrically fixedly connected to one side of the cross plate 5. One end of the screw 7 passes through the connecting plate 6 and is threadedly connected to the threaded sleeve 8. The outer surface of the threaded sleeve 8 abuts against the outer surface of the connecting plate 6.

[0031] Furthermore, the splicing side plate 1, as the main template part, is used to define the side boundary of the precast beam. It is designed in a U-shape and is tightly connected to the fixed side plate 2 by bolts 3 and threaded sleeves 4. The number of splicing side plates 1 can be selected according to the length of the beam to be poured, which can flexibly adapt to different precast beam size requirements. The two splicing side plates 1 are fixed together by bolts 3 and threaded sleeves 4. The fixed side plate 2 and the splicing side plate 1 are used together to form a whole rectangular frame, providing stable support and ensuring that the entire structure will not deform during the concrete pouring process.

[0032] Then, the cross plate 5 is placed inside the splicing side plate 1 and fixedly connected to the connecting plate 6 through the cooperation of the screw 7 and the second screw sleeve 8 to form the bottom plate. Then, the concrete mortar for pouring is poured into the spliced ​​rectangular frame. Finally, the cross plate 5 is placed on the top of the splicing side plate 1 and fixedly connected to the connecting plate 6 through the cooperation of the screw 7 and the second screw sleeve 8, and it is firmly fixed on the top of the splicing side plate 1. At this time, the splicing side plate 1, the fixed side plate 2 and the cross plate 5 cooperate to form a whole sealed rectangular frame, which shapes the concrete mortar filled inside. Each component is easy to assemble and disassemble, reducing preparation time and labor intensity, and improving construction efficiency.

[0033] Example 2

[0034] Reference Figure 1 , Figure 2 and Figure 4 This is the second embodiment of the present invention. Based on the previous embodiment, four U-shaped frames 9 are symmetrically fixedly connected to both sides of the splicing side plate 1. A movable rod 10 is inserted into the inner cavity of the U-shaped frame 9. An elastic ball 11 is fixedly connected to one end of the movable rod 10, and a spring 13 is fixedly connected to the outer surface of the movable rod 10.

[0035] Specifically, the outer surface of the elastic ball 11 abuts against the outer surface of the splicing side plate 1, and the end of the moving rod 10 away from the elastic ball 11 is fixedly connected to the moving plate 12. The two ends of the spring 13 are fixedly connected to one side of the moving plate 12 and the outer surface of the U-shaped frame 9, respectively.

[0036] Furthermore, since the flowing texture of concrete mortar can easily form air pockets inside after pouring, manually moving the moving plate 12 and the moving rod 10 outwards causes the elastic ball 11 to leave the outer surface of the splicing side plate 1. At this time, the spring 13 is stretched. Then, the moving plate 12 is released, and the spring 13's own rebound force causes the moving rod 10 and the elastic ball 11 to return to their original position and hit the splicing side plate 1, causing it to vibrate and eliminate air bubbles. This effectively solves the problem of air pockets inside the concrete, improves the overall density of the precast beam, and the dense concrete has higher compressive strength and durability, extending the service life of the precast beam.

[0037] Working Principle: During the use of the device, the splicing side plate 1 serves as the main template, defining the side boundary of the precast beam. Designed in a U-shape, it is tightly connected to the fixed side plate 2 using bolts 3 and threaded sleeves 4. The number of splicing side plates 1 can be selected according to the required beam length, flexibly adapting to different precast beam size requirements. Two splicing side plates 1 are fixed together using bolts 3 and threaded sleeves 4. The fixed side plate 2 works in conjunction with the splicing side plate 1 to form a rectangular frame, providing stable support and ensuring the entire structure does not deform during concrete pouring. Then, the cross plate 5 is placed inside the splicing side plate 1, and fixed to the connecting plate 6 using bolts 7 and threaded sleeves 8, forming a base plate. Concrete mortar is then poured into the assembled rectangular frame. Finally, the cross plate 5 is placed on top of the splicing side plate 1 and secured with bolts 7 and threaded sleeves 8. The 8-piece set is fixedly connected to the connecting plate 6, firmly securing it above the splicing side plate 1. At this point, the splicing side plate 1, the fixed side plate 2, and the cross plate 5 cooperate to form a completely sealed rectangular frame, shaping the concrete mortar inside. Since the flowing texture of the concrete mortar after pouring can easily form air holes inside, the moving plate 12 and the moving rod 10 are manually moved outward, causing the elastic ball 11 to leave the outer surface of the splicing side plate 1. At this time, the spring 13 is stretched. Then, the moving plate 12 is released, and the spring 13's own rebound force causes the moving rod 10 and the elastic ball 11 to return to their original position and hit the splicing side plate 1, causing it to vibrate and eliminate air bubbles. This effectively solves the problem of air holes inside the concrete, improves the overall density of the precast beam, and the dense concrete has higher compressive strength and durability, extending the service life of the precast beam. The components are easy to assemble and disassemble, reducing preparation time and labor intensity, and improving construction efficiency.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A limiting device for casting precast beams, comprising splicing side plates (1), characterized in that: A fixed side plate (2) is installed on one side of the splicing side plate (1). Two cross plates (5) are movably connected to the inner cavity of the splicing side plate (1). Four connecting plates (6) are symmetrically fixed to both sides of the splicing side plate (1). Four U-shaped frames (9) are symmetrically fixed to both sides of the splicing side plate (1). A moving rod (10) is inserted into the inner cavity of the U-shaped frame (9). An elastic ball (11) is fixedly connected to one end of the moving rod (10). A spring (13) is fixedly connected to the outer surface of the moving rod (10).

2. The limiting device for precast beam casting according to claim 1, characterized in that: The splicing side plate (1) is U-shaped, and the splicing side plate (1) and the fixed side plate (2) are fixedly connected by bolts (3) and threaded sleeves (4).

3. The limiting device for precast beam casting according to claim 1, characterized in that: The number of splicing side plates (1) is two, and the two adjacent splicing side plates (1) are fixedly connected by bolts (3) and threaded sleeves (4).

4. The limiting device for precast beam casting according to claim 1, characterized in that: There are two cross plates (5) symmetrically arranged on the upper and lower sides of the splicing side plate (1), and two screws (7) are symmetrically fixedly connected to one side of the cross plate (5).

5. A limiting device for precast beam casting according to claim 4, characterized in that: One end of the screw (7) is threaded through the connecting plate (6) and connected to the screw sleeve (8), and the outer surface of the screw sleeve (8) abuts against the outer surface of the connecting plate (6).

6. A limiting device for precast beam casting according to claim 1, characterized in that: The outer surface of the elastic ball (11) abuts against the outer surface of the splicing side plate (1). The moving rod (10) is fixedly connected to a moving plate (12) at one end away from the elastic ball (11). The two ends of the spring (13) are fixedly connected to one side of the moving plate (12) and the outer surface of the U-shaped frame (9), respectively.

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