A precast beam diaphragm support device

Abstract

This utility model relates to the field of precast beam technology and proposes a precast beam diaphragm support device, comprising: a beam mold, a first side plate, a vertical plate, a second side plate, a bottom plate, a first screw, a third screw, and a fourth screw. The outer wall of the first side plate is fixedly connected to a side wing, which is fixedly connected to the lower wall of the beam mold. The vertical plate is located outside the first and second side plates, and the bottom plate is located below the first and second side plates. The connection between the side wing and the beam mold ensures that the device does not affect the overall structure of the precast beam during installation and allows for integral casting, guaranteeing the overall strength of the precast beam. The first and second screws fix the bottom plate and ensure close contact between the bottom plate and the two side plates, preventing concrete seepage during casting. The third screw allows for adjustment of the distance between the two side plates, enabling timely adjustment of the diaphragm thickness.

Description

Technical Field

[0001] This utility model belongs to the field of precast beam technology, specifically relating to a precast beam diaphragm support device. Background Technology

[0002] Precast beam diaphragms are reinforcing members placed in the transverse direction of the beam, typically located at the beam ends or mid-span. Their main functions are to enhance the lateral stiffness of the beam, evenly distribute loads, and improve the overall structural integrity. They are precast using the same grade of concrete as the main beam and connected to it via pre-reserved reinforcing bars. During construction, attention must be paid to the quality of joint treatment and positioning accuracy. They feature standardized production and efficient installation, and are widely used in prefabricated structures such as bridges.

[0003] A known authorized patent with application number 202123199256.4 discloses a formwork support device for precast beam diaphragm construction. This device includes a first side formwork connected to one end of a bottom formwork via a movable connecting component. A second side formwork is detachably connected to the other end of the bottom formwork. Side formwork fixing mechanisms are provided on both the first and second side formworks, and a bottom formwork support mechanism is provided below the bottom formwork, connected to the precast beam. This utility model uses hinges to connect the first and bottom formworks, improving the ease of installation and disassembly. The detachable connection of the second side formwork to the bottom formwork facilitates its installation and disassembly, improving construction efficiency, enabling the device to be reused, and ensuring its applicability to the pouring of wet joints in diaphragms under different scenarios, thus expanding its scope of application.

[0004] However, the following problems were found in the implementation of the above technical solutions: the size and thickness of the mold cannot be adjusted during use, and it is installed inside the precast beam for adjustment. When using precast concrete beams, the device needs to be fixed inside the precast beam, and it cannot be cast as a whole, making it difficult to guarantee the strength of the finished product.

[0005] Therefore, a precast beam diaphragm support device is proposed to solve the above problems. Utility Model Content

[0006] This utility model proposes a precast beam diaphragm support formwork device, which solves the problems in related technologies where the size and thickness of the mold cannot be adjusted during use, and adjustments are made inside the precast beam. When using precast concrete beams, the device needs to be fixed inside the precast beam, preventing integral casting and making it difficult to guarantee the strength of the finished product.

[0007] The technical solution of this utility model is as follows: A precast beam diaphragm support device includes: a beam mold, a first side plate, a vertical plate, a second side plate, a bottom plate, a first screw, a third screw, and a fourth screw. The outer wall of the first side plate is fixedly connected with a side wing, and the side wing is fixedly connected to the lower wall of the beam mold.

[0008] The vertical plate is disposed on the outside of the first side plate and the second side plate, and the bottom plate is disposed on the bottom of the first side plate and the second side plate;

[0009] A through pipe is fixedly connected to the inner wall of the first side plate, the through pipe passes through the second side plate, and the third screw is located inside the through pipe.

[0010] Preferably, one end of the third screw is threadedly connected to a rotating plate, the inside of the rotating plate is threadedly connected to a threaded push rod, the other end of the third screw is fixedly connected to a limiting plate, a limiting groove is formed on the outer wall of the first side plate, the shape of the limiting groove corresponds to the limiting plate, a limiting block is provided on the outer wall of the limiting groove, and a hole corresponding to the limiting block is formed on the inner wall of the limiting plate.

[0011] Preferably, the first screw and the second screw are fixedly connected to the lower wall of the side wing, the outer walls of the first screw and the second screw are slidably connected to an upper top block, and the outer walls of the first screw and the second screw are threadedly connected to a first threaded sleeve, the upper top block being located on the upper side of the first threaded sleeve.

[0012] Preferably, the outer wall of the fourth screw is threaded with a second threaded sleeve, and the outer wall of the fourth screw is sleeved with a vertical top plate, the vertical top plate being in close contact with the vertical plate, and the second threaded sleeve being located on the front side of the vertical top plate.

[0013] Preferably, the conduit is made of high-density polyethylene.

[0014] Preferably, the fourth screw is arranged symmetrically.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] The interconnection between the side wings and the beam formwork ensures that the installation and fixing of the device will not affect the overall structure of the precast beam, and allows for integral casting, thus guaranteeing the overall strength of the precast beam. The first and second screws fix the bottom plate and ensure close contact between the bottom plate and the two side plates, preventing concrete seepage during casting. The third screw allows for adjustment of the distance between the two side plates, enabling timely adjustment of the thickness of the diaphragm. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the second screw of this utility model;

[0021] Figure 4 This is a front view structural diagram of the present invention.

[0022] In the diagram: 1. Beam mold; 2. First side plate; 3. Vertical plate; 4. Second side plate; 5. Bottom plate; 6. Side wing; 7. First screw; 8. Second screw; 9. First threaded sleeve; 10. Top block; 11. Through pipe; 12. Third screw; 13. Threaded top rod; 14. Fourth screw; 15. Second threaded sleeve; 16. Vertical top plate; 17. Limiting plate; 18. Limiting groove; 19. Limiting block; 20. Rotating plate. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Implementation

[0025] Please see Figure 1 -4, a precast beam diaphragm support device, comprising: beam mold 1, first side plate 2, vertical plate 3, second side plate 4, bottom plate 5, first screw 7, third screw 12 and fourth screw 14, the outer wall of the first side plate 2 is fixedly connected with a side wing 6, and the side wing 6 is fixedly connected to the lower wall of the beam mold 1.

[0026] The vertical plate 3 is located on the outside of the first side plate 2 and the second side plate 4, and the bottom plate 5 is located on the bottom of the first side plate 2 and the second side plate 4.

[0027] A through pipe 11 is fixedly connected to the inner wall of the first side plate 2. The through pipe 11 passes through the second side plate 4, and the third screw 12 is located inside the through pipe 11.

[0028] The technical solution provided in this embodiment is as follows: First, fix the two side wings 6 to the lower wall of the beam mold 1. Then, place the bottom plate 5 on the lower side of the side plate. Next, rotate the first threaded sleeve 9, which moves the upper top block 10 upward. Fix the bottom plate 5. Pull the third screw 12 outward to position the limiting plate 17 inside the limiting groove 18. Then, rotate the rotating plate 20 to roughly position the second side plate 4. Next, rotate the threaded top rod 13 to adjust and fix the distance between the two side plates. Finally, place the vertical plate 3 on the outside of the side plate. The top plate 16 is placed on the outer wall of the vertical plate 3 and made parallel to the vertical plate 3. Then, the second threaded sleeve 15 is rotated, which moves the top plate 16 forward and securely fixes the vertical plates 3 on both sides of the device. Then, the precast beam can be poured. When disassembling, first remove the first threaded sleeve 9 and the upper top block 10, then remove the bottom plate 5. Next, remove the rotating plate 20 and disassemble the second side plate 4. Then, remove the second threaded sleeve 15 and the top plate 16 to disassemble the vertical plate 3.

[0029] Furthermore, one end of the third screw 12 is threadedly connected to a rotating plate 20, and the inside of the rotating plate 20 is threadedly connected to a threaded push rod 13. The other end of the third screw 12 is fixedly connected to a limiting plate 17. A limiting groove 18 is opened on the outer wall of the first side plate 2. The shape of the limiting groove 18 corresponds to that of the limiting plate 17. A limiting block 19 is provided on the outer wall of the limiting groove 18. A hole corresponding to the limiting block 19 is opened on the inner wall of the limiting plate 17.

[0030] Specifically, the third screw 12 can adjust and fix the distance between the two side plates, enabling the device to manufacture transverse diaphragms of different thicknesses with minimal impact on the strength of the concrete and without affecting its properties.

[0031] Furthermore, the first screw 7 and the second screw 8 are fixedly connected to the lower wall of the side wing 6, and the outer walls of the first screw 7 and the second screw 8 are slidably connected to an upper top block 10. The outer walls of the first screw 7 and the second screw 8 are threadedly connected to a first threaded sleeve 9, and the upper top block 10 is located on the upper side of the first threaded sleeve 9.

[0032] Specifically, the position of the base plate 5 can be fixed by setting the first screw 7 and the second screw 8. When the concrete is demolded and the base plate 5 needs to be disassembled, the top block 10 can be removed.

[0033] Furthermore, the outer wall of the fourth screw 14 is threaded with a second threaded sleeve 15, and the outer wall of the fourth screw 14 is fitted with a vertical top plate 16, which is in close contact with the vertical plate 3. The second threaded sleeve 15 is located on the front side of the vertical top plate 16.

[0034] Specifically, by setting the fourth screw 14, when the concrete needs to be demolded, the vertical plate 3 can be easily disassembled by removing the second threaded sleeve 15, making demolding easier.

[0035] Furthermore, the conduit 11 is made of high-density polyethylene.

[0036] Specifically, high-density polyethylene has a strong tolerance to the highly alkaline environment of concrete and can adapt to the shrinkage and slight deformation of concrete, thus preventing the third screw 12 from being unable to be pulled out when the concrete solidifies.

[0037] Furthermore, the fourth screw 14 is symmetrically arranged.

[0038] Specifically, by setting up symmetrically, concrete leakage during pouring is avoided due to the low fixing strength and tilt of the vertical plate 3.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A formwork assembly for a cross-slab of a precast beam, comprising: The beam mold (1), first side plate (2), vertical plate (3), second side plate (4), bottom plate (5), first screw (7), third screw (12) and fourth screw (14) are characterized in that the outer wall of the first side plate (2) is fixedly connected with a side wing (6), and the side wing (6) is fixedly connected to the lower wall of the beam mold (1); The vertical plate (3) is located on the outside of the first side plate (2) and the second side plate (4), and the bottom plate (5) is located on the lower side of the first side plate (2) and the second side plate (4); A through pipe (11) is fixedly connected to the inner wall of the first side plate (2), the through pipe (11) penetrates the second side plate (4), and the third screw (12) is located inside the through pipe (11).

2. The formwork device for cross-slab of precast beam according to claim 1, characterized in that: One end of the third screw (12) is threadedly connected to a rotating plate (20), and the inside of the rotating plate (20) is threadedly connected to a threaded push rod (13). The other end of the third screw (12) is fixedly connected to a limiting plate (17). A limiting groove (18) is opened on the outer wall of the first side plate (2). The shape of the limiting groove (18) corresponds to that of the limiting plate (17). A limiting block (19) is provided on the outer wall of the limiting groove (18). A hole corresponding to the limiting block (19) is opened on the inner wall of the limiting plate (17).

3. The formwork device for cross-slab of precast beam according to claim 1, wherein: The first screw (7) and the second screw (8) are fixedly connected to the lower wall of the side wing (6). The outer walls of the first screw (7) and the second screw (8) are slidably connected to an upper top block (10). The outer walls of the first screw (7) and the second screw (8) are threadedly connected to a first threaded sleeve (9). The upper top block (10) is located on the upper side of the first threaded sleeve (9).

4. The formwork device for cross-slab of precast beam according to claim 1, characterized in that: The outer wall of the fourth screw (14) is threaded with a second threaded sleeve (15), and the outer wall of the fourth screw (14) is sleeved with a vertical top plate (16). The vertical top plate (16) is in close contact with the vertical plate (3), and the second threaded sleeve (15) is located on the front side of the vertical top plate (16).

5. The formwork device for a cross-slab of a precast beam according to claim 2, characterized in that: The conduit (11) is made of high-density polyethylene.

6. The formwork support device for a precast beam diaphragm according to claim 4, characterized in that: The fourth screw (14) is symmetrically arranged.

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