Bridge joint construction formwork

Abstract

A bridge joint construction template belongs to the technical field of bridge construction, comprises a bottom supporting plate and a steel frame, and is characterized in that two lifting plates are detachably mounted on the lower surface of the bottom supporting plate, an X-shaped frame is mounted between the two lifting plates, screw rods are mounted in the centers of the upper surfaces of the lifting plates, an inverted U-shaped frame is fixedly mounted on the upper surface of the steel frame, and the inverted U-shaped frame is fixedly mounted on the lower surface of the steel frame. Mounting openings are formed in the centers of the upper surfaces of the inverted-U-shaped frame and the steel frame in a penetrating mode, plastic pipe sleeves are placed in the mounting openings in an inserted connection mode, a screw rod penetrates through the upper surface of the bottom supporting plate and the plastic pipe sleeves, and a fastening fastener is installed on the outer surface of the screw rod in a threaded connection mode. The cutting length error of the plastic pipe sleeve can be limited in the length interval between the upper mounting opening and the lower mounting opening, the plastic pipe sleeve within the error range can effectively protect the screw rod, the locking effect of a fastening fastener is not affected, the precision requirement for the using length of the plastic pipe sleeve is remarkably reduced, the plastic pipe sleeve is endowed with certain error tolerance, and great convenience is brought to construction.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a bridge joint construction template. Background Art

[0002] Bridge construction formwork is a temporary structural component used to shape and support the concrete structure of a bridge. It plays a critical role in ensuring the shape, size, and quality of the bridge, providing sufficient support and stability to prevent deformation or collapse during the concrete pouring and curing process.

[0003] After searching, the publication number in the relevant field is: CN221167469U, and the patent name is an authorized patent for a construction template for bridge construction. During the bridge construction process, the screw can be effectively protected by a plastic pipe sleeve, thereby avoiding direct contact between the screw and the concrete when pouring concrete. This design greatly facilitates the subsequent demolding work.

[0004] However, in the actual construction application process, there is an issue that needs to be paid special attention to and properly handled, that is, the length of the plastic sleeve must be strictly and accurately controlled. Any slight error in the length will have an adverse effect on the construction operation.

[0005] For example: if the length of the plastic sleeve is too long, the fasteners will not be able to fit tightly against the steel frame during construction, which will seriously affect the overall stability and reliability of the construction formwork, and may pose a potential threat to the quality and safety of bridge construction.

[0006] Conversely, if the plastic sleeve is too short, it will not fully protect the screw during concrete pouring, potentially causing the screw to come into contact with the concrete. This not only increases the difficulty of removing the formwork, but can also corrode or damage the screw, affecting its service life and performance, leading to unnecessary trouble and increased costs for the entire bridge construction process.

[0007] In order to solve the above technical problems, another bridge joint construction template is provided to solve the above technical problems. Utility Model Content

[0008] In view of the defect of the construction template used for bridge construction in the prior art that the length of the plastic sleeve needs to be strictly controlled, and a slight error in the length will have an adverse effect on the construction operation, the utility model provides a bridge joint construction template, by installing an inverted U-shaped frame on the upper surface of the steel frame, and opening an installation port through the upper surface of the U-shaped frame and the steel frame. When the plastic pipe sleeve is actually produced, the cutting length error of the plastic pipe sleeve can be controlled within the length range between the upper and lower installation ports. The plastic pipe sleeve with a length error within this range can not only effectively protect the screw, but also will not affect the locking effect of the fastener, and can significantly reduce the length requirement for the plastic sleeve, so that it can have a certain error range during use, which brings great convenience to the construction process and effectively reduces a series of problems that may be caused by the excessively high accuracy requirements of the plastic sleeve length. At the same time, it also improves construction efficiency and reduces construction costs to a certain extent, and effectively solves the defect of the construction template used for bridge construction in the prior art that the length of the plastic sleeve needs to be strictly controlled, and a slight error in the length will have an adverse effect on the construction operation. Its specific technical solution is as follows:

[0009] A bridge joint construction template comprises a bottom support plate and a steel frame, characterized in that two lifting plates are detachably mounted on the lower surface of the bottom support plate, an X-shaped frame is fixedly mounted between the two lifting plates, and screws are fixedly mounted at the center of the upper surfaces of the lifting plates, an inverted U-shaped frame is fixedly mounted on the upper surface of the steel frame, mounting openings are penetrated through the centers of the upper surfaces of the inverted U-shaped frame and the steel frame, a plastic pipe sleeve is inserted into the mounting opening, the screw penetrates the upper surface of the bottom support plate and the plastic pipe sleeve, and a fastener is screwed onto the outer surface of the screw, and the lower surface of the fastener is in contact with the upper surface of the inverted U-shaped frame.

[0010] In the above technical solution, a groove is formed on the upper surface of the bottom support plate, a disposable contact plate is clamped and installed in the groove, and two through-holes are formed through the upper surface of the disposable contact plate, and the screw passes through one of the through-holes;

[0011] In the above technical solution, a rubber sealing pad is symmetrically fixedly mounted on the upper surface of the disposable contact plate;

[0012] In the above technical solution, the inner diameter of the through opening is the same as the outer diameter of the plastic tube sleeve;

[0013] In the above technical solution, limit blocks are fixedly installed on the left and right surfaces of the lifting plate, and the inner surface of the limit blocks is in contact with the outer surface of the bottom supporting plate.

[0014] Compared with the prior art, the bridge joint construction template of the present invention has the following beneficial effects:

[0015] The utility model installs an inverted U-shaped frame on the upper surface of the steel frame and opens an installation opening through the middle of the inverted U-shaped frame and the upper surface of the steel frame. This design can limit the cutting length error of the plastic pipe sleeve to the length range between the upper and lower installation openings without affecting the use of the plastic pipe sleeve. The plastic pipe sleeve within this error range can effectively protect the screw rod without affecting the locking effect of the fastener, which significantly reduces the accuracy requirement for the use length of the plastic sleeve and gives it a certain error tolerance. This brings great convenience to construction and effectively avoids many problems that may be caused by excessively high requirements for the length accuracy of the plastic sleeve. At the same time, it improves construction efficiency and reduces construction costs to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the steel frame structure of the present utility model.

[0019] Figure 4 It is a structural diagram of the utility model when in use.

[0020] Figure 1-4 Among them: 1. Bottom support plate; 11. Groove; 12. Disposable contact plate; 121. Rubber sealing gasket; 121. Through port; 2. Lifting plate; 21. X-shaped frame; 22. Limit block; 3. Screw; 4. Steel frame; 41. Inverted U-shaped frame; 42. Installation port; 5. Plastic pipe sleeve; 6. Fastener; 7. Cast-in-place beam and slab. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In this embodiment, front, back, left, right, up and down are represented by Figure 1 Describes the datum. Figures 1-4 , the utility model provides a technical solution:

[0023] A bridge joint construction template includes a bottom supporting plate 1 and a steel frame 4, characterized in that two lifting plates 2 are detachably mounted on the lower surface of the bottom supporting plate 1, an X-shaped frame 21 is fixedly mounted between the two lifting plates 2, and a screw 3 is fixedly mounted at the center of the upper surface of each lifting plate 2, an inverted U-shaped frame 41 is fixedly mounted on the upper surface of the steel frame 4, and a mounting opening 42 is penetrated at the center of the upper surface of the inverted U-shaped frame 41 and the steel frame 4, a plastic pipe sleeve 5 is inserted and placed in the mounting opening 42, the screw 3 penetrates the upper surface of the bottom supporting plate 1 and the plastic pipe sleeve 5, and a fastener 6 is screwed and mounted on the outer surface of the screw 3, and the lower surface of the fastener 6 is in contact with the upper surface of the inverted U-shaped frame 41;

[0024] When in use, lift the bottom support plate 1 and place it between the lower surfaces of the two cast-in-place beams and slabs 7. Then, pass the screw 3 through the bottom support plate 1 and use the lifting plate 2 to lift the bottom support plate 1. Then, place the steel frame 4 between the lower surfaces of the two cast-in-place beams and slabs 7, and pass the screw 3 through the steel frame 4 and the mounting port 42 of the inverted U-shaped frame 41. Then, insert the plastic pipe sleeve 5 into the mounting hole 42 so that the bottom of the plastic sleeve 5 fits with the upper surface of the bottom support plate 1. At this time, the plastic pipe sleeve 5 is sleeved on the outside of the screw 3 to protect it. Finally, use the fastener 6 to screw it on the outer surface of the screw 3, and make the lower surface of the fastener 6 fit with the upper surface of the inverted U-shaped frame 41. The construction template body is clamped between the two cast-in-place beams and slabs 7 to complete the installation.

[0025] In addition, considering that when the bottom support plate 1 is demoulded, concrete is easy to solidify on its upper surface, affecting the effect of next use, such as Figure 2 As shown, a groove 11 is provided on the upper surface of the bottom support plate 1, and a disposable contact plate 12 is clamped and installed in the groove 11. Two through holes 121 are provided on the upper surface of the disposable contact plate 12, and the screw 3 passes through one of the through holes 121. The disposable contact plate 12 can be a thin wooden board or some low-cost plastic board. The disposable contact plate 12 can be used to replace the bottom support plate 1 in contact with the concrete, avoiding direct contact between the bottom support plate 1 and the concrete, which affects the next use effect.

[0026] In addition, when pouring concrete, in order to strengthen the sealing between the rubber sealing pad 122 and the cast-in-place beam and slab 7, the rubber sealing pad 122 is symmetrically fixedly installed on the upper surface of the disposable contact plate 12.

[0027] To prevent concrete from seeping into the opening 121 and contacting the bottom support plate 1 during concrete pouring, the inner diameter of the opening 121 needs to be the same as the outer diameter of the plastic sleeve 5. In this way, after the bottom of the plastic sleeve 5 is inserted into the opening 121, the two can fit tightly together, thereby preventing concrete from seeping into the opening 121 and contacting the bottom support plate 1.

[0028] Specifically, the left and right surfaces of the lifting plate 2 are fixedly installed with limit blocks 22, and the inner surface of the limit block 22 is in contact with the outer surface of the bottom support plate 1. The limit block 22 can be used to clamp the bottom support plate 1 on top of the lifting plate 2 to enhance the stability of the bottom support plate 1.

Claims

1. A bridge joint construction template, comprising a bottom support plate (1) and a steel frame (4), characterized in that: Two lifting plates (2) are detachably mounted on the lower surface of the bottom support plate (1), an X-shaped frame (21) is fixedly mounted between the two lifting plates (2), and a screw (3) is fixedly mounted at the center of the upper surface of each lifting plate (2); An inverted U-shaped frame (41) is fixedly installed on the upper surface of the steel frame (4), and a mounting opening (42) is provided through the center of the upper surface of the inverted U-shaped frame (41) and the steel frame (4), a plastic pipe sleeve (5) is inserted into the mounting opening (42), the screw rod (3) passes through the upper surface of the bottom support plate (1) and the plastic pipe sleeve (5), and a fastener (6) is screwed and installed on the outer surface of the screw rod (3), and the lower surface of the fastener (6) is in contact with the upper surface of the inverted U-shaped frame (41).

2. A bridge joint construction template according to claim 1, characterized in that: The upper surface of the bottom support plate (1) is provided with a groove (11), a disposable contact plate (12) is mounted in the groove (11), and two through-holes (121) are provided through the upper surface of the disposable contact plate (12), and the screw (3) passes through one of the through-holes (121).

3. A bridge joint construction template according to claim 2, characterized in that: A rubber sealing pad (122) is symmetrically fixedly mounted on the upper surface of the disposable contact plate (12).

4. A bridge joint construction template according to claim 2, characterized in that: The inner diameter of the through opening (121) is the same as the outer diameter of the plastic pipe sleeve (5).

5. A bridge joint construction template according to claim 1, characterized in that: Limiting blocks (22) are fixedly mounted on both the left and right surfaces of the lifting plate (2), and the inner surface of the limiting blocks (22) is in contact with the outer surface of the bottom supporting plate (1).

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