Toothed arc expansion joint

Abstract

The utility model relates to the field of arc expansion joint, concretely relates to a toothed arc expansion joint, including the first expansion board and the second expansion board installed on the beam body, the first expansion board one end is provided with the tooth groove, the second expansion board one end is installed with the tooth block, the beam body is provided with the pre -buried groove, the inner wall of pre -buried groove is installed with pre -buried reinforcement, the inside of pre -buried reinforcement is inserted with the transverse steel bar, the inner wall of pre -buried groove is provided with the mounting portion, the utility model is through the side wall installation of the first expansion board and the second expansion board and hold -down plate, sets up the threaded rod on the hold -down plate, utilizes the roof of threaded rod, to provide the support force for the transverse steel bar, lets the transverse steel bar be able to adhere to pre -buried reinforcement, is convenient for the welding of two, and installs the threaded cylinder on the hold -down plate, lets the threaded cylinder cooperate with threaded rod, can adjust the height of roof through the screwing threaded rod, lets the roof cooperate with pre -buried reinforcement and clamps the fixation to the transverse steel bar, further guarantees the stability of transverse steel bar.

Description

Technical Field

[0001] This utility model relates to the field of arc-shaped expansion joints, specifically to a toothed arc-shaped expansion joint. Background Technology

[0002] Bridge expansion joints are special structural joints installed between the superstructures of a bridge or between the superstructure and the end wall of the abutment. They are mainly used to regulate the expansion and contraction deformation of the bridge caused by factors such as temperature changes, material shrinkage and creep, and vehicle loads. By allowing the bridge to expand and contract freely, they prevent the structure from cracking or being damaged due to restricted deformation, while protecting the continuity of the bridge deck and traffic safety.

[0003] When installing existing expansion joints, the horizontal reinforcing bars need to be welded to the pre-embedded reinforcing bars. However, there is a certain gap between the horizontal reinforcing bars and the pre-embedded reinforcing bars. Furthermore, the horizontal reinforcing bars themselves are heavy and long. At the same time, there is a lack of support structure for the horizontal reinforcing bars at the pre-embedded joint. As a result, when welding, workers need to hold the pre-embedded reinforcing bars to carry out the welding operation, which is a huge burden for the workers. Utility Model Content

[0004] Based on the above description, this utility model provides a toothed arc-shaped expansion joint to solve the problem that existing expansion joints lack a support device for the transverse reinforcing bars when welding them.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a toothed arc-shaped expansion joint, including a first expansion plate and a second expansion plate installed on the beam;

[0006] The first telescopic plate has a toothed groove at one end, the second telescopic plate has a toothed block at one end, the beam has an embedded groove, the inner wall of the embedded groove is fitted with embedded steel bars, the inside of the embedded steel bars is filled with transverse steel bars, and the inner wall of the embedded groove is provided with an installation part.

[0007] The mounting section includes a connecting plate, connecting reinforcing bars, a support plate, a threaded rod, and a top plate. The connecting plate is installed on the side walls of the first telescopic plate and the second telescopic plate. The connecting reinforcing bars are located at the bottom of the connecting plate. The support plate is installed on the side walls of the first telescopic plate and the second telescopic plate. The threaded rod and the top plate are installed between the transverse reinforcing bars and the support plate, and the transverse reinforcing bars pass through the connecting reinforcing bars. The threaded rod and the top plate support the transverse reinforcing bars.

[0008] Furthermore, the mounting part also includes a threaded cylinder, and the top of the support plate has a mounting hole. The threaded cylinder is installed inside the mounting hole, and the inner wall of the threaded cylinder is threadedly connected to the threaded rod.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the top plate is fixedly mounted on the top end of the threaded rod passing through the threaded cylinder, and the mounting part also includes a protrusion, which is mounted on the top surface of the top plate.

[0011] Furthermore, the sidewalls of the first telescopic plate and the second telescopic plate are both wavy when viewed from above, and the toothed blocks and toothed grooves are respectively distributed on the sidewalls of the first telescopic plate and the second telescopic plate.

[0012] Furthermore, a rotating rod is installed on the side wall of the threaded rod away from the top plate.

[0013] Furthermore, the number of top plates is the same as the number of transverse reinforcing bars, and the top plates are all located below the transverse reinforcing bars. The protrusions are designed as a hemispherical shape and are evenly distributed on the top surface of the top plates.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] This invention involves installing support plates on the side walls of the first and second telescopic plates, and setting threaded rods on the support plates. The top plate on the threaded rods provides support for the transverse reinforcing bars, allowing them to fit against the pre-embedded reinforcing bars for easy welding. Furthermore, a threaded cylinder is installed on the support plate, which works in conjunction with the threaded rods. By turning the threaded rods, the height of the top plate can be adjusted, allowing the top plate to clamp and fix the transverse reinforcing bars in conjunction with the pre-embedded reinforcing bars, further ensuring the stability of the transverse reinforcing bars. Attached Figure Description

[0016] Figure 1 A schematic diagram of a toothed arc-shaped expansion joint provided for an embodiment of this utility model;

[0017] Figure 2 This is a top view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall front structure of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Beam body; 2. First expansion plate; 3. Second expansion plate; 4. Embedded groove; 5. Embedded steel bar; 6. Transverse steel bar; 7. Installation part; 71. Connecting plate; 72. Connecting steel bar; 73. Support plate; 74. Threaded rod; 75. Threaded cylinder; 76. Top plate; 77. Protrusion; 8. Tooth groove; 9. Tooth block. Detailed Implementation

[0022] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0024] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the technical product is in use. They are used only for the convenience of describing the technology 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. Therefore, they should not be construed as limitations on the technology. Furthermore, "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. Therefore, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0027] Please see Figure 1 , Figure 2 and Figure 4A toothed arc-shaped expansion joint includes a first expansion plate 2 and a second expansion plate 3 installed on a beam 1;

[0028] The first telescopic plate 2 has a toothed groove 8 at one end, the second telescopic plate 3 has a toothed block 9 at one end, the beam 1 has an embedded groove 4, the inner wall of the embedded groove 4 is equipped with embedded steel bars 5, the inside of the embedded steel bars 5 is interspersed with transverse steel bars 6, and the inner wall of the embedded groove 4 is provided with an installation part 7.

[0029] The installation unit 7 includes a connecting plate 71, a connecting reinforcing bar 72, a support plate 73, a threaded rod 74, and a top plate 76. The connecting plate 71 is installed on the side wall of the first telescopic plate 2 and the second telescopic plate 3. The connecting reinforcing bar 72 is located at the bottom of the connecting plate 71. The support plate 73 is installed on the side wall of the first telescopic plate 2 and the second telescopic plate 3. The threaded rod 74 and the top plate 76 are installed between the transverse reinforcing bar 6 and the support plate 73, and the transverse reinforcing bar 6 passes through the connecting reinforcing bar 72. The threaded rod 74 and the top plate 76 support the transverse reinforcing bar 6. During welding, the transverse reinforcing bar 6 can be placed on the top plate 76, which supports the transverse reinforcing bar 6. This frees up the worker's hands, allowing the worker to concentrate on the welding operation. During the welding process, the transverse reinforcing bar 6 will not shake or fall, ensuring the quality of the welding.

[0030] Please see Figure 2 , Figure 3 and Figure 4 In this embodiment, the mounting part 7 also includes a threaded cylinder 75. The top of the support plate 73 is provided with a mounting hole. The threaded cylinder 75 is installed inside the mounting hole. The inner wall of the threaded cylinder 75 is threadedly connected to the threaded rod 74. By turning the threaded rod 74, the height of the top plate 76 can be adjusted, so that the top plate 76 can cooperate with the pre-embedded steel bar 5 to clamp and fix the transverse steel bar 6, further improving the limiting and fixing effect of the transverse steel bar 6 and ensuring the welding quality of the transverse steel bar 6.

[0031] Please see Figure 3 and Figure 4 In this embodiment, the top plate 76 is fixedly installed on the top end of the threaded rod 74 passing through the threaded cylinder 75. The mounting part 7 also includes a protrusion 77, which is installed on the top surface of the top plate 76. The protrusion 77 on the top plate 76 can enhance the friction of the top plate 76 and enhance the limiting effect on the transverse reinforcing bar 6 when it cooperates with the pre-embedded reinforcing bar 5.

[0032] Please see Figure 3 and Figure 4In this embodiment, the sidewalls of the first telescopic plate 2 and the second telescopic plate 3 are both wavy when viewed from the top. The toothed blocks 9 and toothed grooves 8 are respectively distributed on the sidewalls of the first telescopic plate 2 and the second telescopic plate 3. An arc-shaped expansion joint is formed between the two wavy first telescopic plate 2 and the second telescopic plate 3. The arc-shaped expansion joint can guide the deformation direction through the curvature change of the arc structure. Compared with the straight type, it has a larger contact area and the joint is gradually transitioned, avoiding the stress concentration point of the right angle joint. With the toothed blocks 9 and toothed grooves 8, the contact area on both sides of the expansion joint is further increased, enhancing the advantages of the arc-shaped expansion joint and increasing the contact area on both sides of the joint.

[0033] Please see Figure 3 and Figure 4 In this embodiment, a rotating rod is installed on the side wall of the threaded rod 74 away from the top plate 76. The rotating rod on the threaded rod 74 can be used to easily turn the threaded rod 74 by grasping the rotating rod.

[0034] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the number of top plates 76 is the same as the number of transverse steel bars 6, and the top plates 76 are all located below the transverse steel bars 6. The protrusions 77 are designed as a hemispherical shape, and the protrusions 77 are evenly distributed on the top surface of the top plates 76. The protrusions 77 are distributed on the top plates 76. When the top plates 76 cooperate with the pre-embedded steel bars 5 to clamp and fix the transverse steel bars 6, the friction between the transverse steel bars 6 and the top plates 76 is enhanced. The protrusions 77 are made of rubber blocks.

[0035] The above description is only a preferred embodiment of the present utility model and is 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 should be included within the protection scope of the present utility model.

Claims

1. A toothed arc-shaped expansion joint, comprising a first expansion plate (2) and a second expansion plate (3) installed on a beam (1), characterized in that: The first telescopic plate (2) has a toothed groove (8) at one end, the second telescopic plate (3) has a toothed block (9) at one end, the beam (1) has an embedded groove (4), the inner wall of the embedded groove (4) is equipped with an embedded steel bar (5), the inside of the embedded steel bar (5) is filled with a transverse steel bar (6), and the inner wall of the embedded groove (4) is provided with an installation part (7). The mounting part (7) includes a connecting plate (71), a connecting steel bar (72), a support plate (73), a threaded rod (74), and a top plate (76). The connecting plate (71) is installed on the side wall of the first telescopic plate (2) and the second telescopic plate (3). The connecting steel bar (72) is located at the bottom of the connecting plate (71). The support plate (73) is installed on the side wall of the first telescopic plate (2) and the second telescopic plate (3). The threaded rod (74) and the top plate (76) are installed between the transverse steel bar (6) and the support plate (73), and the transverse steel bar (6) passes through the connecting steel bar (72). The threaded rod (74) and the top plate (76) support the transverse steel bar (6).

2. A toothed curved expansion joint according to claim 1, wherein, The mounting part (7) also includes a threaded cylinder (75). The top of the support plate (73) is provided with a mounting hole. The threaded cylinder (75) is installed inside the mounting hole. The inner wall of the threaded cylinder (75) is threadedly connected to the threaded rod (74).

3. A toothed curved expansion joint according to claim 1, wherein, The top plate (76) is fixedly installed on the top end of the threaded rod (74) passing through the threaded cylinder (75), and the mounting part (7) also includes a protrusion (77) installed on the top surface of the top plate (76).

4. A toothed curved expansion joint according to claim 1, wherein, The sidewalls of the first telescopic plate (2) and the second telescopic plate (3) are both wavy when viewed from above, and the toothed blocks (9) and toothed grooves (8) are respectively distributed on the sidewalls of the first telescopic plate (2) and the second telescopic plate (3).

5. A toothed curved expansion joint according to claim 4, wherein, A rotating rod is installed on the side wall of the threaded rod (74) away from the top plate (76).

6. A toothed curved expansion joint according to claim 1, wherein, The number of top plates (76) is the same as the number of transverse steel bars (6), and the top plates (76) are all located below the transverse steel bars (6). The protrusions (77) are designed as a hemispherical shape, and the protrusions (77) are evenly distributed on the top surface of the top plates (76).

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