Device for fixing railway deformation joint dowel bar

Abstract

The utility model discloses a device for fixing a dowel bar of a railway deformation joint, which is characterized by comprising a support used for being fixed on a construction cushion layer to serve as an installation foundation of the dowel bar. The connecting rod is vertically mounted at the top of the support; the circular buckle is connected to the top of the connecting rod and used for clamping a dowel bar; wherein the connecting rod is a telescopic connecting rod, and when vibration occurs, it is guaranteed that the mounting position of the dowel bar does not change through the connecting rod. The device for fixing the dowel bar of the railway deformation joint has the advantages that the elastic telescopic connecting rod is respectively connected with the support and the round buckle, the round buckle is connected with the dowel bar, the support is fixed on a construction cushion layer, even if vibration occurs, the vibration is counteracted through the telescopic connecting rod, and the vibration is prevented from falling off. And it is guaranteed that the mounting position of the dowel bar cannot be changed, the mounting precision and accuracy of the dowel bar are improved, and meanwhile the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dowel rod fixing, in particular to a device for fixing a dowel rod of a railway deformation joint. Background Art

[0002] During the construction of buildings and railways, expansion joints are an important structural component. With temperature changes, wind force, and vibrations during train travel, the length, width, and height of the structure will change. Therefore, a certain amount of expansion joints must be reserved in the building to allow the structure to expand and contract. The dowel rod connects the structures on both sides of the expansion joint and transfers the load. However, during the construction process, due to the influence of factors such as the bottom plate hook and concrete vibration, the dowel rod will become tilted, the embedded position will have serious deviations, and the embedded position will not be centered, which will cause the dowel rod to lose its function. Therefore, a dowel rod fixing device is urgently needed to ensure that the dowel rod will not change position during the concrete pouring and vibration process, so as to improve the installation precision and accuracy. Utility Model Content

[0003] The purpose of the utility model is to provide a device for fixing a dowel rod of a railway expansion joint according to the above-mentioned deficiencies of the prior art, which offsets vibration through a retractable connecting rod to ensure that the installation position of the dowel rod does not change.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A device for fixing a dowel rod of a railway expansion joint, comprising:

[0006] The support is used to be fixed on the construction cushion as the installation basis of the force transmission rod;

[0007] A connecting rod is vertically mounted on the top of the support;

[0008] A circular buckle is connected to the top of the connecting rod and is used to clamp the force transmission rod; wherein

[0009] The connecting rod is a telescopic connecting rod, and when vibration occurs, the connecting rod ensures that the installation position of the force transmission rod will not change.

[0010] Optionally, the support is an I-shaped support, and a plurality of screw holes are evenly arranged in the length direction of two sides of the support.

[0011] Optionally, the circular buckle includes two semicircular hoops that can rotate relative to each other and a fastening assembly connecting the two semicircular hoops.

[0012] Optionally, the two semicircular hoops are rotatably connected via a rotating shaft.

[0013] Optionally, the fastening assembly includes a bolt and a nut threadedly connected thereto.

[0014] Optionally, the bolt and any one of the semicircular hoops rotate relative to the other end of the rotating shaft.

[0015] Optionally, the semicircular hoop is provided with a notch for accommodating the bolt.

[0016] Optionally, the number of the connecting rods is consistent with the number of the circular buckles.

[0017] Optionally, the inner diameter of the circular buckle is equal to the diameter of the force transmission rod.

[0018] Optionally, the connecting rod and the circular buckle are arranged at intervals at installation positions on the top of the support following the installation position of the force transmission rod.

[0019] The advantages of the utility model are:

[0020] The device for fixing the dowel rod of a railway expansion joint of the utility model connects a support and a circular buckle respectively through an elastically retractable connecting rod, the circular buckle is connected to the dowel rod, and the support is fixed on a construction cushion layer. Even if vibration occurs, the retractable connecting rod offsets the vibration, thereby ensuring that the installation position of the dowel rod does not change, thereby improving the installation precision and accuracy of the dowel rod and simultaneously improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view of the device for fixing the railway expansion joint dowel rod of the utility model;

[0022] Figure 2 It is a front view of the device for fixing the dowel rod of railway expansion joint of the utility model;

[0023] Figure 3 A top view of the support of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the circular buckle of the utility model. DETAILED DESCRIPTION

[0025] The marks in the figure are: 1, support, 2, connecting rod, 3, circular buckle, 11, screw hole, 31, semicircular hoop, 32, rotating shaft, 33, fastening assembly, 331, bolt, 332, nut.

[0026] Example: See Figure 1 and Figure 2As shown, an embodiment of a device for fixing a dowel rod of a railway expansion joint is shown, which includes a support 1, which is used to be fixed on a construction cushion layer as an installation basis for the dowel rod; a connecting rod 2, which is vertically installed on the top of the support 1; a circular buckle 3, which is connected to the top of the connecting rod 2 and is used to clamp the dowel rod; wherein the connecting rod 2 is a telescopic connecting rod, and when vibration occurs, the connecting rod 2 is used to ensure that the installation position of the dowel rod will not change.

[0027] In this embodiment, Figure 3 As shown, the support 1 is an I-shaped support, and a plurality of screw holes 11 are evenly arranged in the length direction of both sides of the support 1.

[0028] In this embodiment, Figure 4 As shown, the circular buckle 3 includes two semicircular hoops 31 that can rotate relative to each other and a fastening assembly 33 connecting the two semicircular hoops 31 . The two semicircular hoops 31 are rotatably connected via a rotating shaft 32 .

[0029] In this embodiment, the fastening assembly 33 includes a bolt 331 and a nut 332 threadedly connected thereto. The bolt 331 and any semicircular hoop 31 rotate relative to the other end of the mounting shaft 32. The semicircular hoop 31 is provided with a notch (not shown) for accommodating the bolt 331.

[0030] In this embodiment, the number of connecting rods is consistent with the number of circular buckles, and the inner diameter of the circular buckle is equal to the diameter of the force transmission rod.

[0031] In this embodiment, the installation positions of the connecting rod and the circular buckle on the top of the support are arranged at intervals following the installation position of the force transmission rod.

[0032] The characteristics and functions of the present invention can be further understood through the following description.

[0033] The device of this embodiment is composed of three parts: a "J"-shaped support 1, a connecting rod 2, and a circular buckle 3. There are several screw holes 11 distributed on both sides of the "J"-shaped support 1. When in use, screws can be installed through the screw holes 11 to fix the support 1 on the cushion layer to ensure that the device will not be displaced when subjected to external forces. Under different construction conditions, the installation elevation of the force transmission rod may be different, so a retractable connecting rod 2 is designed, and the installation position of the force transmission rod is determined by the retractable connecting rod 2. The circular buckle 3 is installed on the upper part of the connecting rod 2, and the circular buckle 3 can be selected according to the size of the force transmission rod. When in use, the upper part of the circular buckle 3 (that is, the end with the fastening component 33) is opened, the force transmission rod is placed on the circular buckle 3, and then the circular buckle 3 is closed, and the bolt 331 and the nut 332 of the circular buckle 3 are tightened to fix the force transmission rod. Before use, the connecting rod 2 can be distributed according to the design interval of the force transmission rod, and then the device can be fixed through the screw hole 11 on the support 1. The force transmission rod is fixed with a circular buckle 3 on the upper part to resist external forces and achieve the function of fixing the force transmission rod. After the construction is completed, the screws of the support 1 can be unscrewed, and the bolts 331 and nuts 332 can be unscrewed and the device can be recovered.

[0034] The device of this embodiment has a simple structure, is made of common materials, and has low cost; the support is fixed and the buckle is fixed. The double fixing measures can more effectively resist deformation under the action of external forces; and the device can be reused.

[0035] To sum up, the device for fixing the dowel rod of the railway expansion joint of the utility model connects the support and the circular buckle respectively through an elastically retractable connecting rod, the circular buckle is connected to the dowel rod, and the support is fixed on the construction cushion layer. Even if vibration occurs, the retractable connecting rod can offset the vibration to ensure that the installation position of the dowel rod will not change, thereby improving the installation precision and accuracy of the dowel rod and improving the construction efficiency at the same time.

[0036] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for fixing a railway expansion joint dowel rod, characterized in that: include: The support is used to be fixed on the construction cushion as the installation basis of the force transmission rod; A connecting rod is vertically mounted on the top of the support; A circular buckle is connected to the top of the connecting rod and is used to clamp the force transmission rod; wherein The connecting rod is a telescopic connecting rod, and when vibration occurs, the connecting rod ensures that the installation position of the force transmission rod will not change.

2. The device for fixing the railway expansion joint dowel rod according to claim 1, characterized in that: The support is an I-shaped support, and a plurality of screw holes are evenly arranged in the length direction of two sides of the support.

3. The device for fixing the railway expansion joint dowel rod according to claim 2, characterized in that: The circular buckle comprises two semicircular hoops which can rotate relatively and a fastening assembly connecting the two semicircular hoops.

4. The device for fixing the railway expansion joint dowel rod according to claim 3, characterized in that: The two semicircular hoops are rotatably connected via a rotating shaft.

5. The device for fixing the railway expansion joint dowel rod according to claim 4, characterized in that: The fastening assembly comprises a bolt and a nut threadedly connected thereto.

6. The device for fixing the railway expansion joint dowel rod according to claim 5, characterized in that: The bolt and any one of the semicircular hoops rotate relative to the other end of the rotating shaft.

7. The device for fixing the railway expansion joint dowel rod according to claim 6, characterized in that: The semicircular hoop is provided with a notch for accommodating the bolt.

8. The device for fixing the railway expansion joint dowel rod according to claim 7, characterized in that: The number of the connecting rods is consistent with the number of the circular buckles.

9. The device for fixing the railway expansion joint dowel rod according to claim 8, characterized in that: The inner diameter of the circular buckle is equal to the diameter of the force transmission rod.

10. The device for fixing the railway expansion joint dowel rod according to claim 9, characterized in that: The connecting rod and the circular buckle are arranged at intervals at the installation positions of the top of the support following the installation position of the force transmission rod.

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