Magnetic attraction rubber cushion block for ballastless track base limiting groove construction

Abstract

The utility model relates to the field of ballastless track construction, in particular to a magnetic suction rubber cushion block for ballastless track base limiting groove construction, which comprises a lengthened coating component and four quadrangular rubber cushion blocks, the four quadrangular rubber cushion blocks are respectively arranged at four corners of a groove customized template through magnetic suction components, and each magnetic suction component comprises a plurality of magnetic suction blocks. Sizing supporting assemblies are arranged in the four-corner rubber cushion blocks, the four-corner rubber cushion blocks are arranged at the four corners of the groove customized formwork in an attracted mode through magnetic attraction assemblies correspondingly, the distance between the ballastless track limiting groove and a steel bar is positioned and controlled through the four-corner rubber cushion blocks with the same size and thickness, and then the thickness uniformity of a concrete protection layer is achieved. And in addition, under the matching action of the shaping supporting assembly and the lengthening coating assembly, the posture and length of the four-corner rubber cushion block can be adaptively adjusted according to the customized size of the groove customized template so as to adapt to the groove customized templates with different construction requirements, and the construction efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the field of ballastless track construction, in particular to a magnetic rubber pad for the construction of a ballastless track base limiting groove. Background Art

[0002] Ballastless track refers to a track structure that uses an integral foundation of concrete, asphalt mixture, etc. instead of a granular gravel roadbed. It is also called ballastless track. The CRTS double-block ballastless track limit groove is a common structural structure of ballastless track. During the construction of the ballastless track limit groove, it is necessary to fix the customized formwork in the construction position, and then build steel bars around the formwork. After the steel bars are built, concrete is poured around the steel bars around the formwork. Finally, the customized formwork is removed, leaving the completed ballastless track limit groove.

[0003] Since the ballastless track limit groove is a square structure, anti-cracking steel bars are tied at the four corners when the steel bars are tied. In order to better protect the steel bar structure and the strength of the ballastless track limit groove, a concrete protective layer of a certain thickness needs to be formed between the inner cavity of the ballastless track limit groove and the steel bars to prevent the steel bars from being directly exposed from the ballastless track limit groove. However, the steel bar tying is mostly done manually, and the distance between the steel bars and the customized template is not easy to adjust and control, resulting in poor uniformity of the thickness of the protective layer around the ballastless track limit groove. Utility Model Content

[0004] The purpose of the utility model is to provide a magnetic rubber pad for the construction of a ballastless track base limiting groove, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a magnetic rubber pad for the construction of a ballastless track base limiting groove, comprising:

[0006] Four rubber pads at four corners, the four rubber pads at four corners are respectively arranged at the four corners of the groove custom template through magnetic components, the magnetic components include a number of magnetic blocks, the four rubber pads are provided with a shaping support component, the shaping support component includes two deformable support rods,

[0007] The extended covering assembly is installed on both sides of the weight reduction groove, and the extended covering assembly includes an extended pad and two combined connecting rods.

[0008] Preferably, the four-corner rubber pads are symmetrically provided with a plurality of embedded grooves on one side close to the groove customized template, and a plurality of magnetic blocks are respectively inserted into the plurality of embedded grooves through threads, and one side of the plurality of magnetic blocks is in contact with the outer side wall of the groove customized template.

[0009] Preferably, adaption slots are horizontally provided at both upper and lower ends of the four-corner rubber pads, and the two deformable support rods are respectively inserted into the two adaption slots, and the cross-sections of the adaption slots and the deformable support rods are both square structures.

[0010] Preferably, the deformable support rod is set as an L-shaped arc-shaped transition structure, the four corners of the groove customized template are all arc-shaped fillets, and the virtual center of the arc segment of the deformable support rod is concentrically set with the virtual center of the four corner arc surfaces of the groove customized template.

[0011] Preferably, expansion grooves are provided on both sides of the adapter slot, a combination thread groove is provided at the center of one side of the deformable support rod located in the expansion groove, four deformation limit plates are symmetrically provided on the four sides of the deformable support rod close to the combination thread groove, and the four deformation limit plates are placed in the expansion groove.

[0012] Preferably, two elastic slots are horizontally penetrated in the extended pad, and two combined connecting rods are horizontally movable and inserted into the two elastic slots. A threaded joint is provided on one side of the combined connecting rod passing through the elastic slot, and one side of the two threaded joints is respectively inserted into the combined threaded groove of the deformable support rod. The extended pad is in contact with one side of the four corner rubber pads, and the cross-sectional dimensions of the extended pad and the four corner rubber pads are the same.

[0013] Preferably, a conical abutment block is provided on one side of the threaded joint. When the threaded joint is plugged into the combined thread groove, the outer peripheral side of the conical abutment block placed in the expansion groove abuts against the side surface of the four deformation limiting plates close to the combined thread groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] At the four corners of the groove customized formwork, a four-corner rubber pad is respectively adsorbed and set by the magnetic suction component. The four-corner rubber pads of the same size and thickness are used to position and control the distance between the ballastless track limit groove and the steel bar, thereby achieving a uniform thickness of the concrete protective layer. In addition, with the cooperation of the shaped support component and the extended covering component, the posture and length of the four-corner rubber pads can be adaptively adjusted according to the customized size of the groove customized formwork to adapt to the use of groove customized formwork with different construction requirements, thereby improving construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the four-corner rubber pads of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the deformable support rod and the four-corner rubber pads of the utility model;

[0019] Figure 4 This is a side cutaway view of the combined structure of the extended pad and the four-corner rubber pads of the utility model;

[0020] Figure 5 This is a schematic diagram of the matching structure of the deformed support rod and the combined connecting rod of the utility model.

[0021] In the figure: groove customized template 1, four-corner rubber pads 2, weight reduction groove 3, embedded groove 4, magnetic block 5, adapter slot 6, deformable support rod 7, combined threaded groove 8, deformable limit plate 9, extended pad 10, elastic slot 11, combined connecting rod 12, threaded joint 13, tapered abutment block 14, expansion slot 15. DETAILED DESCRIPTION

[0022] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit 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.

[0023] Please see the attached Figure 1-Figure 5 , this application provides the following technical solutions.

[0024] Embodiment 1, a magnetic rubber pad for the construction of a ballastless track base limiting groove, comprising four four-corner rubber pads 2, the four four-corner rubber pads 2 being respectively arranged at the four corners of a groove customized template 1 through a magnetic assembly, the magnetic assembly comprising a plurality of magnetic blocks 5, a shaping support assembly being provided in the four-corner rubber pads 2, the shaping support assembly comprising two deformable support rods 7, a plurality of embedded grooves 4 being symmetrically provided on one side of the four-corner rubber pads 2 close to the groove customized template 1, a plurality of magnetic blocks 5 being respectively inserted into the plurality of embedded grooves 4 through threads, and a plurality of magnetic blocks 5 having one side in contact with the outer side wall of the groove customized template 1, a plurality of weight-reducing grooves 3 being provided on a side of the four-corner rubber pads 2 close to the groove customized template 1, for reducing the weight of the four-corner rubber pads 2 and improving the adsorption stability of the four-corner rubber pads 2 and the groove customized template 1;

[0025] Similarly, the embedded grooves 4 and the magnetic blocks 5 can be provided in multiple numbers to ensure that the four-corner rubber pads 2 and the groove customized template 1 maintain a stable connection when used in conjunction.

[0026] The four corner rubber pads 2 are horizontally provided with an adapting slot 6 at the upper and lower ends, and the two deformable support rods 7 are respectively inserted into the two adapting slots 6, and the cross-sections of the adapting slots 6 and the deformable support rods 7 are both square structures. The deformable support rods 7 are set as an L-shaped arc-shaped transition structure. The four corners of the groove customized template 1 are all arc-rounded. The virtual center of the arc section of the deformable support rod 7 is concentric with the virtual center of the four corner arc surfaces of the groove customized template 1. When the deformable support rods 7 are inserted into the four corner rubber pads 2, the four corner rubber pads 2 can be guided to deform so that the four corner rubber pads 2 fit the four corners of the groove customized template 1 more closely. According to the manufacturing size of the ballastless track limiting groove, when the size of the four corner arc surfaces of the groove customized template 1 changes, the deformable support rods 7 can be adjusted according to the bending of the deformable support rods 7 or a deformable support rod 7 of a size that matches the groove customized template 1 can be customized to adjust the size of the arc angle of the four corner rubber pads 2 after bending, thereby enhancing the applicability of the four corner rubber pads 2.

[0027] At the same time, the square structure of the deformable support rod 7 and the adapter slot 6 can prevent the deformable support rod 7 from rotating when it is connected with the four-corner rubber pad 2, thereby improving the combined connection efficiency between the deformable support rod 7 and the four-corner rubber pad 2.

[0028] Expansion grooves 15 are provided on both sides of the adapter slot 6, and a combined thread groove 8 is provided at the center of one side of the deformation support rod 7 located in the expansion groove 15. Four deformation limiting pieces 9 are symmetrically provided on the four sides of the deformation support rod 7 close to the combined thread groove 8, and the four deformation limiting pieces 9 are placed in the expansion groove 15. When the deformation limiting piece 9 is bent and inserted into the expansion groove 15, the deformation support rod 7 can be stably retained in the four-corner rubber pads 2 to support the deformation of the four-corner rubber pads 2.

[0029] In this embodiment, when it is necessary to construct the ballastless track limit groove, the deformed support rod 7 that meets the arc angle size of the groove customized template 1 is first inserted into the four-corner rubber pad 2, so that the four-corner rubber pad 2 is deformed to fit the four corners of the groove customized template 1 more closely. Then the four-corner rubber pad 2 is magnetically contacted with the four corners of the groove customized template 1 through the magnetic block 5. When the steel bars are tied, the anti-cracking steel bars at the four corners of the groove customized template 1 are in contact with the side of the four-corner rubber pad 2 away from the groove customized template 1. After the steel bars are tied and before pouring, the four-corner rubber pad 2 is removed from the four corners of the groove customized template 1. When removing, it can be directly pulled out. Then, concrete is poured on the steel bar position outside the groove customized template 1 to ensure that the thickness of the protective layer at the four corners of the ballast track limit groove is uniform after pouring.

[0030] Embodiment 2: On the basis of embodiment 1, an extended covering component is provided to control the thickness of the protective layer on the non-corner sides of the groove customized template 1 in the same manner. The extended covering component is installed on both sides of the weight reduction groove 3. The extended covering component includes an extended pad 10 and two combined connecting rods 12. Two elastic slots 11 are horizontally penetrated in the extended pad 10. The two combined connecting rods 12 are respectively movable horizontally through and inserted into the two elastic slots 11. A threaded joint 13 is provided on one side of the combined connecting rod 12 penetrating the elastic slot 11. One side of the two threaded joints 13 is respectively inserted into the combined threaded groove 8 of the deformed support rod 7. The extended pad 10 is aligned with one side of the four-corner rubber pad 2. Abutment, and the extended pad 10 has the same cross-sectional size as the four-corner rubber pad 2, and a conical abutment block 14 is provided on one side of the threaded joint 13. When the threaded joint 13 is plugged into the combined thread groove 8, the conical abutment block 14 is placed on the outer peripheral side of the expansion groove 15 and abuts against the side of the four deformation limiting pieces 9 close to the combined thread groove 8. When the extended pad 10 is assembled with the four-corner rubber pad 2 through two combined connecting rods 12, one side of the threaded joint 13 is threadedly inserted into the combined thread groove 8 of the deformed support rod 7. At this time, the conical abutment block 14, under the action of the inclined surface, pushes the deformation limiting piece 9 to bend and abut against the inner wall of the expansion groove 15, thereby maintaining the stability of the deformed support rod 7;

[0031] In this way, the steel bars on the side of the groove customized template 1 come into contact with the extended spacer 10 during tying, which can quickly position and control the distance between the steel bars and the groove customized template 1. After the pouring construction is completed, the thickness of the concrete cover between the inner wall of the ballastless track limit groove and the steel bars is uniform, which is simple to operate and convenient to construct.

[0032] In addition, according to the length of the extended spacer 10 , a corresponding number of weight-reducing grooves 3 and magnetic blocks 5 can be reasonably designed on the side of the extended spacer 10 close to the groove customized template 1 .

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic rubber pad for the construction of a ballastless track base limiting groove, characterized in that: include: Four four-corner rubber pads (2), the four four-corner rubber pads (2) are respectively arranged at the four corners of the groove customized template (1) through a magnetic attraction component, the magnetic attraction component includes a plurality of magnetic blocks (5), and a shaping support component is provided in the four-corner rubber pads (2), and the shaping support component includes two deformable support rods (7). An extended covering assembly is installed on both sides of the weight-reducing groove (3), and the extended covering assembly includes an extended cushion block (10) and two combined connecting rods (12).

2. The magnetic rubber pad for the construction of the limiting groove of the ballastless track base according to claim 1 is characterized by: The four-corner rubber pad (2) is symmetrically provided with a plurality of embedded grooves (4) on one side close to the groove customized template (1); a plurality of magnetic blocks (5) are respectively inserted into the plurality of embedded grooves (4) through threads, and one side of the plurality of magnetic blocks (5) is in contact with the outer side wall of the groove customized template (1).

3. The magnetic rubber pad for the construction of the limiting groove of the ballastless track base according to claim 2 is characterized by: Adaptation slots (6) are horizontally provided at both upper and lower ends of the four-corner rubber pad (2), and two deformable support rods (7) are respectively inserted into the two adaption slots (6), and the cross-sections of the adaption slots (6) and the deformable support rods (7) are both square structures.

4. The magnetic rubber pad for the construction of the limiting groove of the ballastless track base according to claim 3 is characterized by: The deformable support rod (7) is an L-shaped arc-shaped transition structure, the four corners of the groove customization template (1) are all arc-shaped fillets, and the virtual center of the arc segment of the deformable support rod (7) is concentric with the virtual center of the four corner arc surfaces of the groove customization template (1).

5. The magnetic rubber pad for the construction of the limiting groove of the ballastless track base according to claim 4, characterized in that: Both sides of the adapting slot (6) are provided with expansion slots (15), a center of one side of the deformable support rod (7) located in the expansion slot (15) is provided with a combined threaded groove (8), four sides of the deformable support rod (7) close to the combined threaded groove (8) are symmetrically provided with four deformation limiting pieces (9), and the four deformation limiting pieces (9) are placed in the expansion slot (15).

6. The magnetic rubber pad for construction of a ballastless track base limiting groove according to claim 5, characterized in that: Two elastic slots (11) are horizontally penetrated in the extended pad (10), and two combined connecting rods (12) are respectively horizontally movable and penetrated to be plugged into the two elastic slots (11). A threaded joint (13) is provided on one side of the combined connecting rod (12) penetrating the elastic slot (11), and one side of the two threaded joints (13) is respectively plugged into the combined threaded groove (8) of the deformable support rod (7). The extended pad (10) is in contact with one side of the four-corner rubber pad (2), and the cross-sectional dimensions of the extended pad (10) and the four-corner rubber pad (2) are the same.

7. The magnetic rubber pad for construction of a ballastless track base limiting groove according to claim 6, characterized in that: A conical abutment block (14) is provided on one side of the threaded joint (13). When the threaded joint (13) is plugged into the combined thread groove (8), the outer peripheral side of the conical abutment block (14) disposed in the expansion groove (15) abuts against a side surface of the four deformation limiting pieces (9) close to the combined thread groove (8).

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