Quickly assembled and disassembled motor train unit grounding rod

Abstract

The utility model discloses a motor train unit grounding rod capable of being quickly assembled and disassembled, which relates to the technical field of motor trains and comprises a sleeve, a connecting belt, an installation module and a rod body. The mounting module comprises a fixing piece, a crimping piece and an inserting rod, and the inserting rod is connected with the end part of the connecting belt; the crimping part is fixedly connected with a pull-connecting rod, and the pull-connecting rod is inserted into the accommodating cavity; the side wall of the fixing piece is provided with a first guide half hole, and the side wall of the crimping piece is provided with a second guide half hole; limiting rings are arranged on the surfaces of the inserting rods. The fixing part is normally installed at the bottom of the bullet train rail, during use, a user inserts the inserting rod between the fixing part and the pressing part, the first guiding half hole and the second guiding half hole clamp the inserting rod from the two sides, the limiting ring pulls the inserting rod from the bottom end, anti-disengaging installation of the inserting rod is achieved, and further pulling force is transmitted to the rod body through the connecting belt and the sleeve; therefore, shaking of the rod body is reduced, and stability and safety are improved. The device is simple in structure, reliable in function, convenient to assemble and disassemble and wide in market prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of motor vehicles, in particular to a motor vehicle grounding rod which can be quickly assembled and disassembled. Background Art

[0002] The grounding rod is used to ground the overhead contact network during EMU maintenance. The top of the grounding rod is usually hung on the overhead contact network. In windy weather, the bottom of the grounding rod needs to be fixed to the overhead contact network support nearby (for example, by bundling) to avoid the bottom of the grounding rod swaying in the wind and causing safety accidents.

[0003] When there is no contact network support near the grounding pole, the only option is to replace the hanging position of the grounding pole and re-plan the layout of the maintenance equipment, which is cumbersome and reduces work efficiency. Summary of the invention

[0004] In order to overcome the problem existing in the above background technology that "in strong wind scenarios, traditional grounding rods cannot take into account both wind resistance and convenience", the utility model provides a fast-loading and unloading EMU grounding rod.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A fast-loading and disassembly EMU grounding rod comprises a sleeve, a connecting belt, an installation module and a rod body, wherein a hook adapted to a contact network is provided on the top of the rod body, the bottom of the rod body is connected to the sleeve, the sleeve is connected to the middle of the connecting belt, and the installation module is provided with two and respectively connected to the two ends of the connecting belt; the installation module comprises a fixing member, a crimping member and a plug-in rod, the fixing member is connected to the EMU rail, and the plug-in rod is connected to the end of the connecting belt; the fixing member is provided with an accommodating cavity, the crimping member is fixedly connected with a connecting rod, the connecting rod is plugged and arranged in the accommodating cavity, a tension spring is provided in the accommodating cavity, one end of the tension spring is connected to the end of the connecting rod, and the other end of the tension spring is connected to the end face of the accommodating cavity; the accommodating cavity is in the shape of a blind hole; a first guide half hole is provided on the side wall of the fixing member, and a second guide half hole is provided on the side wall of the crimping member, the first guide half hole and the second guide half hole are coaxially arranged, and the first guide half hole and the second guide half hole are both adapted to the surface of the plug-in rod; a limiting ring is provided on the surface of the plug-in rod.

[0007] As a further optimization solution of the present utility model, two limit rings are provided.

[0008] As a further optimization solution of the utility model, a gripping handle is vertically provided on the top of the plug-in rod.

[0009] As a further optimization solution of the utility model, a first guiding bevel groove is provided at the top end of the first guiding half hole, and a second guiding bevel groove is provided at the top end of the second guiding half hole. The first guiding bevel groove and the second guiding bevel groove are surrounded in a truncated cone shape.

[0010] As a further optimization scheme of the utility model, the maximum diameter of the first guide bevel = the maximum diameter of the second guide bevel > the outer diameter of the limiting ring > the diameter of the first guide half hole = the diameter of the second guide half hole = the diameter of the plug-in rod.

[0011] As a further optimization solution of the present invention, the fixing piece is in a J-shape.

[0012] As a further optimization scheme of the utility model, two pulling rods are provided and are symmetrically arranged along the second guide half hole; two accommodating cavities are provided and are symmetrically arranged along the first guide half hole; two tension springs are provided and are respectively placed in the two accommodating cavities.

[0013] As a further optimization scheme of the utility model, the sleeve is provided with a first cavity and a strip hole, the first cavity is arranged along the axial direction of the sleeve, the strip hole is arranged along the radial direction of the sleeve, the first cavity is connected with the strip hole in a ⊥ shape; the connecting belt is inserted into the strip hole.

[0014] As a further optimization scheme of the utility model, a first plug-in protrusion is provided at the center position of the bottom end surface of the rod body, and a concave hole adapted to the first plug-in protrusion is provided on the bottom wall of the strip hole, and the concave hole is placed directly below the first plug-in protrusion.

[0015] As a further optimization scheme of the utility model, the bottom end face of the rod body is provided with a plurality of second plug-in protrusions, and the second plug-in protrusions are arranged in a circular array along the first plug-in protrusions; the bottom wall of the strip hole is provided with a concave ring adapted to the second plug-in protrusions, and the concave ring is located directly below the second plug-in protrusions; the rod body includes a support rod and a crimping block which are rotatably connected to each other, and the first plug-in protrusion and the second plug-in protrusion of the crimping block are connected to the crimping block.

[0016] In summary, the utility model is beneficial in that:

[0017] A fast-loading and disassembly EMU grounding rod comprises a sleeve, a connecting belt, an installation module and a rod body. The installation module comprises a fixing piece, a crimping piece and a plug-in rod, the fixing piece is connected to the EMU rail, and the plug-in rod is connected to the end of the connecting belt; the fixing piece is provided with a receiving cavity, the crimping piece is fixedly connected with a connecting rod, the connecting rod is plugged and arranged in the receiving cavity, a tension spring is arranged in the receiving cavity, one end of the tension spring is connected to the end of the connecting rod, and the other end of the tension spring is connected to the end face of the receiving cavity; a first guide half hole is provided on the side wall of the fixing piece, and a second guide half hole is provided on the side wall of the crimping piece, the first guide half hole and the second guide half hole are coaxially arranged, and both the first guide half hole and the second guide half hole are adapted to the surface of the plug-in rod; a limit ring is provided on the surface of the plug-in rod. The fixing piece is normally installed at the bottom of the moving vehicle rail. When in use, the user inserts the plug rod between the fixing piece and the crimping piece, so that the first guide half hole and the second guide half hole clamp the plug rod from both sides, and the limit ring pulls the plug rod from the bottom end, so as to realize the anti-drop installation of the plug rod, and further transmit the pulling relay force to the rod body through the connecting belt and the sleeve to reduce the shaking of the rod body and improve stability and safety. The utility model has a simple structure, reliable function, convenient loading and unloading, and has broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present application is further described below with reference to the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the connection relationship between the sleeve, the rod body and the connecting belt;

[0020] Figure 2 It is a schematic diagram of the vertical section structure of the sleeve;

[0021] Figure 3 This is a schematic diagram of the installation location of the installation module;

[0022] Figure 4 This is a schematic diagram of the installation module structure;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the fixing part and the crimping part;

[0024] Figure 6 It is a schematic diagram of the connection structure between the tension spring and the tension rod;

[0025] Figure 7 is a schematic diagram of the fixing structure;

[0026] Figure 8 A schematic diagram of the position and structure of the first plug-in protrusion and the second plug-in protrusion;

[0027] Fig. 9 Schematic diagram of the rod structure.

[0028] Description of reference numerals:

[0029] In the figure,

[0030] 1. Sleeve; 11. First cavity; 12. Strip hole; 121. Concave hole; 122. Concave ring; 2. Connecting belt; 3. Mounting module; 31. Fixing piece; 3101. Hanging piece; 3102. Pressing plate; 311. First guide half hole; 312. First guide bevel groove; 32. Crimping piece; 321. Second guide half hole; 322. Second guide bevel groove; 323. Pull rod; 324. Tension spring; 33. Plug rod; 331. Limiting ring; 332. Grasping handle; 4. Rod body; 401. Support rod; 402. Crimping block; 41. First plug-in protrusion; 42. Second plug-in protrusion; 5. EMU track. DETAILED DESCRIPTION

[0031] Based on the above structural features of the present application, the implementation methods of the present application are further described:

[0032] Reference Figures 1 to 9 This embodiment provides a fast-loading and unloading EMU grounding rod, including a sleeve 1, a connecting belt 2, an installation module 3 and a rod body 4.

[0033] Reference Figure 1 to Figure 3 The top of the rod body 4 is provided with a hook adapted to the contact network, the hook is fixedly connected to the top of the rod body 4 (for example, by bolts, by integrated fixed connection or by welding), the bottom of the rod body 4 is connected to the sleeve 1, the sleeve 1 is connected to the middle of the connecting belt 2, and two installation modules 3 are provided and are respectively connected to the two ends of the connecting belt 2. When in use, the two installation modules 3 are respectively connected to the two moving vehicle rails 5, and the moving vehicle rails 5 apply a pulling force pointing to the bottom and the lower right to the rod body 4 through the connecting belt 2 to reduce the shaking amplitude of the rod body 4 and improve stability and safety.

[0034] Reference Figures 4 to 6 The mounting module 3 includes a fixing member 31, a crimping member 32 and a plug-in rod 33. The fixing member 31 is connected to the bottom plate of the moving vehicle rail 5, and the plug-in rod 33 is fixedly connected to the end of the connecting belt 2. The fixing member 31 is provided with a receiving cavity, and the crimping member 32 is fixedly connected with a connecting rod 323 (for example, fixedly connected by bolts). The connecting rod 323 is plugged and arranged in the receiving cavity. A tension spring 324 is provided in the receiving cavity. One end of the tension spring 324 is connected to the end of the connecting rod 323, and the other end of the tension spring 324 is connected to the end face of the receiving cavity. The tension spring 324 pulls the connecting rod 323 and the crimping member 32, so that the connecting rod 323 and the crimping member 32 have a tendency to move toward the fixing member 31, so that the fixing member 31 and the crimping member 32 can clamp the plug-in rod 33. The receiving cavity is in the shape of a blind hole.

[0035] Reference Figure 4 and Figure 5A first guide half hole 311 is provided on the side wall of the fixing member 31 , and a second guide half hole 321 is provided on the side wall of the crimping member 32 . The first guide half hole 311 and the second guide half hole 321 are coaxially arranged, and both the first guide half hole 311 and the second guide half hole 321 are adapted to the surface of the plug-in rod 33 .

[0036] Reference Figure 4 , a limiting ring 331 is provided on the surface of the plug rod 33; after the plug rod 33 is inserted between the fixing member 31 and the crimping member 32, the limiting ring 331 is used to prevent the plug rod 33 from falling out. Two limiting rings 331 are provided, one above and one below; the thickness of the right end of the fixing member 31 and the left end of the crimping member 32 are equal and both are H, and the distance between the two limiting rings 331 is also H, so that the limiting rings 331 can be clamped at the upper and lower end surfaces of the fixing member 31 and the upper and lower end surfaces of the crimping member 32.

[0037] Reference Figure 4 A gripping handle 332 is vertically disposed on the top of the plug-in rod 33 (for example, fixedly connected by bolts).

[0038] Reference Figure 5 The first guiding bevel 312 is provided at the top of the first guiding half hole 311, and the second guiding bevel 322 is provided at the top of the second guiding half hole 321. The first guiding bevel 312 and the second guiding bevel 322 are surrounded by a truncated cone. The first guiding bevel 312 is connected to the first guiding half hole 311, and the second guiding bevel 322 is connected to the second guiding half hole 321. The first guiding bevel 312 and the second guiding bevel 322 play a guiding role when the plug-in rod 33 is inserted, reducing the difficulty of insertion, thereby improving the convenience of construction. The bottom end of the plug-in rod 33 is a hemispherical structure to reduce the wear of the first guiding bevel 312, the second guiding bevel 322, the first guiding half hole 311 and the second guiding half hole 321.

[0039] The maximum diameter of the first guiding bevel groove 312 = the maximum diameter of the second guiding bevel groove 322 > the outer diameter of the limiting ring 331 > the diameter of the first guiding half hole 311 = the diameter of the second guiding half hole 321 = the diameter of the plug-in rod 33 .

[0040] Reference Figure 3 to Figure 5 The fixing member 31 is in a J-shape so as to be easily hooked on the position of the moving vehicle rail 5 .

[0041] Reference Figure 7 The fixing member 31 includes a hanging member 3101 and a pressing plate 3102 which are fixedly connected to each other by bolts, and a mounting groove for clamping the moving vehicle rail 5 is formed between the hanging member 3101 and the pressing plate 3102.

[0042] Two connecting rods 323 are provided and are symmetrically arranged along the second guide half hole 321; two accommodating cavities are provided and are symmetrically arranged along the first guide half hole 311; two tension springs 324 are provided and are respectively placed in the two accommodating cavities; to ensure uniform transmission and reduce wear.

[0043] Reference Figure 2 The sleeve 1 is provided with a first cavity 11 and a strip hole 12. The first cavity 11 is arranged along the axial direction of the sleeve 1, and the strip hole 12 is arranged along the radial direction of the sleeve 1. The first cavity 11 is connected with the strip hole 12 in a ⊥ shape; the connecting belt 2 is inserted into the strip hole 12. The inner wall of the first cavity 11 is provided with an internal thread, and the outer wall of the bottom of the rod body 4 is provided with an external thread adapted to the internal thread. When the user rotates the rod body 4, the lower end surface of the rod body 4 can press and fix the connecting belt 2 and the bottom surface of the strip hole 12, so as to avoid the problem of the bottom end of the rod body 4 and the sleeve 1 shaking along the connecting belt 2 in the traditional technology, and further improve the stability and safety of the utility model.

[0044] Reference Figure 2 , Figure 8 and Fig. 9 A first plugging protrusion 41 is provided at the center of the bottom end face of the rod body 4, and a concave hole 121 adapted to the first plugging protrusion 41 is provided on the bottom wall of the strip hole 12, and the concave hole 121 is located directly below the first plugging protrusion 41. A plurality of second plugging protrusions 42 are provided on the bottom end face of the rod body 4, and the second plugging protrusions 42 are arranged in a circular array along the first plugging protrusion 41; a concave ring 122 adapted to the second plugging protrusion 42 is provided on the bottom wall of the strip hole 12, and the concave ring 122 is located directly below the second plugging protrusion 42. When the lower end surface of the rod body 4, the connecting belt 2 and the strip hole 12 are crimped together, the first plug-in protrusion 41 squeezes the connecting belt 2 toward the recessed hole 121, and the second plug-in hole squeezes the connecting belt 2 toward the recessed ring 122, thereby causing the connecting belt 2 to undergo a concave deformation, so as to improve the crimping stability, increase the resistance of the connecting belt 2 to the movement in the strip hole 12, and further avoid the problem of the bottom end of the rod body 4 and the sleeve 1 shaking along the connecting belt 2.

[0045] Reference Fig. 9 The rod body 4 includes a support rod 401 and a crimping block 402 that are rotatably connected to each other (for example, by an annular clamping connection), and the first plug-in protrusion 41 and the second plug-in protrusion 42 are connected to the crimping block 402 (for example, an integral fixed connection). The first plug-in protrusion 41 is in an inverted cone shape, and the second plug-in protrusion 42 is in an inverted cone shape. After the first plug-in protrusion 41 and the second plug-in protrusion 42 are plugged into the connecting belt 2, the crimping block 402 stops rotating, and the support rod 401 continues to rotate and presses the crimping block 402 downward to prevent the connecting belt 2 from being subjected to the lateral thrust of the first plug-in protrusion 41 / the second plug-in protrusion 42 and forming wrinkles, thereby improving the crimping stability.

[0046] The top of the support rod 401 is connected to a grounding wire, and the grounding wire is connected to the ground. The external thread is arranged at the outer wall of the support rod 401 .

[0047] Usage steps: ① Connect the rod body 4 to the grounding wire; ② Insert the plug-in rod 33 between the fixing part 31 and the crimping part 32, so that the limiting ring 331 is clamped at the lower ends of the first guide half hole 311 and the second guide half hole 321; ③ Install the sleeve 1 in the middle of the connecting belt 2; ④ Connect the bottom end of the rod body 4 to the sleeve 1; ⑤ Hang the top end of the rod body 4 on the contact network.

[0048] During step ②, the plug rod 33 is inserted along the first guide half hole 311 and the second guide half hole 321. When the limit block passes through the first guide half hole 311 and the second guide half hole 321, the gap between the fixing member 31 and the crimping member 32 is widened; after the limit block moves out of the first guide half hole 311 and the second guide half hole 321, the tension spring 324 pulls the crimping member 32 to reset and achieve the clamping connection to prevent the plug rod 33 from coming out. The user pulls the crimping member 32 outward to enlarge the gap between the fixing member 31 and the crimping member 32, and then the plug rod 33 can be pulled out. To facilitate the user's pulling, the crimping member 32 is installed with a pull ring through a bolt.

[0049] The fixing part 31 is normally installed at the bottom of the moving vehicle rail 5. When in use, the user inserts the plug rod 33 between the fixing part 31 and the crimping part 32, so that the first guide half hole 311 and the second guide half hole 321 clamp the plug rod 33 from both sides, and the limit ring 331 pulls the plug rod 33 from the bottom end, so as to realize the anti-drop installation of the plug rod 33, and further transmit the pulling relay force to the rod body 4 through the connecting belt 2 and the sleeve 1, so as to reduce the shaking of the rod body 4 and improve the stability and safety. The utility model has a simple structure, reliable function, convenient loading and unloading, and has a broad market prospect.

[0050] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0051] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] To sum up, for those skilled in the art, according to the guidance of the present invention, without departing from the principle and spirit of the present invention, the changes, modifications, replacements and deformations made to the present invention still fall within the protection scope of the present invention.

Claims

1. A fast-loading and unloading EMU grounding rod, characterized in that: It comprises a sleeve (1), a connecting belt (2), a mounting module (3) and a rod body (4); the top of the rod body (4) is provided with a hook adapted to fit the contact network; the bottom of the rod body (4) is connected to the sleeve (1); the sleeve (1) is connected to the middle of the connecting belt (2); two mounting modules (3) are provided and are respectively connected to the two ends of the connecting belt (2); The mounting module (3) comprises a fixing member (31), a crimping member (32) and a plug-in rod (33); the fixing member (31) is connected to the moving vehicle rail (5); the plug-in rod (33) is connected to the end of the connecting belt (2); the fixing member (31) is provided with a receiving cavity; the crimping member (32) is fixedly connected to a connecting rod (323); the connecting rod (323) is plugged into the receiving cavity; a tension spring (324) is provided in the receiving cavity; one end of the tension spring (324) is connected to the end of the connecting rod (323); the other end of the tension spring (324) is connected to the end face of the receiving cavity; the receiving cavity is in the shape of a blind hole; The side wall of the fixing member (31) is provided with a first guide half hole (311), and the side wall of the crimping member (32) is provided with a second guide half hole (321), the first guide half hole (311) and the second guide half hole (321) are coaxially arranged, and the first guide half hole (311) and the second guide half hole (321) are both adapted to the surface of the plug rod (33); A limiting ring (331) is provided on the surface of the plug-in rod (33).

2. The fast-loading and disassembly EMU grounding rod according to claim 1 is characterized in that: Two limiting rings (331) are provided.

3. The fast-loading and disassembly EMU grounding rod according to claim 1 is characterized in that: A gripping handle (332) is vertically provided on the top of the plug-in rod (33).

4. The fast-loading and disassembly EMU grounding rod according to claim 3 is characterized in that: A first guiding oblique groove (312) is provided at the top end of the first guiding half hole (311), and a second guiding oblique groove (322) is provided at the top end of the second guiding half hole (321), wherein the first guiding oblique groove (312) and the second guiding oblique groove (322) surround each other in a truncated cone shape.

5. The fast-loading and disassembly EMU grounding rod according to claim 4 is characterized in that: The maximum diameter of the first guiding bevel groove (312) = the maximum diameter of the second guiding bevel groove (322) > the outer diameter of the limiting ring (331) > the diameter of the first guiding half hole (311) = the diameter of the second guiding half hole (321) = the diameter of the plug-in rod (33).

6. The fast-loading and disassembling EMU grounding rod according to claim 5, characterized in that: The fixing member (31) is in a J-shape.

7. The fast-loading and disassembling EMU grounding rod according to claim 6 is characterized in that: The connecting rods (323) are provided with two and are symmetrically arranged along the second guide half hole (321); the accommodating cavities are provided with two and are symmetrically arranged along the first guide half hole (311); and the tension springs (324) are provided with two and are respectively placed in the two accommodating cavities.

8. The fast-loading and disassembling EMU grounding rod according to claim 7 is characterized in that: The sleeve (1) is provided with a first cavity (11) and a strip-shaped hole (12); the first cavity (11) is arranged along the axial direction of the sleeve (1); the strip-shaped hole (12) is arranged along the radial direction of the sleeve (1); the first cavity (11) and the strip-shaped hole (12) are connected in a ⊥ shape; and the connecting belt (2) is inserted into the strip-shaped hole (12).

9. The fast-loading and disassembling EMU grounding rod according to claim 8, characterized in that: A first plugging protrusion (41) is provided at the center of the bottom end surface of the rod body (4), and a concave hole (121) adapted to the first plugging protrusion (41) is provided on the bottom wall of the strip-shaped hole (12), wherein the concave hole (121) is located directly below the first plugging protrusion (41).

10. The fast-loading and disassembling EMU grounding rod according to claim 9, characterized in that: The bottom end surface of the rod body (4) is provided with a plurality of second plug-in protrusions (42), and the second plug-in protrusions (42) are arranged in a circular array along the first plug-in protrusions (41); the bottom wall of the strip-shaped hole (12) is provided with a concave ring (122) adapted to the second plug-in protrusions (42), and the concave ring (122) is located directly below the second plug-in protrusions (42); the rod body (4) comprises a support rod (401) and a crimping block (402) which are rotatably connected to each other, and the first plug-in protrusion (41) and the second plug-in protrusion (42) of the crimping block (402) are connected to the crimping block (402).

Images