Disassembling and assembling device suitable for electrical connector of motor train unit

Abstract

The utility model belongs to the technical field of electrical overhaul, and discloses a dismounting device suitable for an electrical connector of a motor train unit, which comprises a handle and a buckling part, and the buckling part is arranged on the handle and can be matched with the whole body of a connecting ring; the buckling part comprises a fixed head and a movable head, the fixed head is arranged at the first end of the handle, the fixed head is connected with an adjusting clamping groove of the movable head through a clamping pin, and the matching size of the buckling part can be changed by changing the clamping pin to fall into different groove positions of the adjusting clamping groove; anti-skid teeth are arranged on the fixing head and used for being matched with the anti-skid teeth of the connecting ring during disassembly and assembly; the movable head is provided with a clamping hook which is used for being embedded into the clamping groove in the connecting ring or meshed with the anti-skid teeth of the connecting ring during disassembly and assembly. According to the utility model, the torque can be effectively applied to the connecting ring of the circular electrical connector, the damage to the circular electrical connector caused in the disassembly and assembly process can be reduced, and electrical connectors of various specifications can be disassembled and assembled.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical maintenance, and in particular relates to a disassembly and assembly device suitable for an electric vehicle group electrical connector. Background Art

[0002] A large number of devices and sensors are arranged at the bottom of the EMU vehicle, in the power distribution cabinet and at the vehicle end connection. They are connected to the EMU electrical circuit through a circular electrical connector (also called an "aviation plug") to achieve power supply and signal transmission. In order to ensure the stable connection of the circular electrical connector and prevent it from being loosened by vibration and foreign objects during the operation of the EMU, the circular electrical connectors are fastened by the threads of the connecting ring, and the corresponding torque needs to be calibrated when necessary. Since the cross-section of the connecting ring of the circular electrical connector is circular and it is only provided with a circle of anti-slip teeth on the circumferential surface, when facing disassembly and assembly operations, the use of similar disassembly and assembly devices such as pipe pliers and vises is prone to improper force clamping or scratching the circular electrical connector; currently, there is no corresponding disassembly and assembly device that can effectively disassemble and assemble the circular electrical connector.

[0003] Therefore, a new technology is needed to solve the problem that the prior art lacks a disassembly and assembly device suitable for the electrical connector of a motor vehicle. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a disassembly and assembly device suitable for EMU electrical connectors, which can effectively apply torque to the connecting ring of the circular electrical connector, reduce the damage to the circular electrical connector caused by the disassembly and assembly process, and can disassemble and assemble electrical connectors of various specifications.

[0005] The utility model adopts the following technical solutions:

[0006] A disassembly and assembly device suitable for an electrical connector of an EMU, characterized in that it comprises a handle and a buckling portion, wherein the buckling portion is arranged on the handle and can cooperate with the circumference of a connecting ring; the buckling portion comprises a fixed head and a movable head, wherein the fixed head is arranged at the first end of the handle, the fixed head is connected to an adjustment slot of the movable head via a bayonet pin, and the matching size of the buckling portion can be changed by changing the different slot positions of the bayonet pin into which the adjustment slot is fallen; the fixed head is provided with anti-slip teeth for cooperating with the anti-slip teeth of the connecting ring during disassembly and assembly; the movable head is provided with a hook for engaging with the slot on the connecting ring or biting with the anti-slip teeth of the connecting ring during disassembly and assembly.

[0007] Furthermore, the adjustment slot includes a main slot and a plurality of slots, and the main slot is connected to the plurality of slots.

[0008] Furthermore, the movable head is arc-shaped.

[0009] Furthermore, the cross section of the movable head gradually decreases from the first end to the second end with the hook.

[0010] Furthermore, it also includes a connecting head, which is arranged at the second end of the handle.

[0011] Furthermore, the connector is one of a triangular column, a square column, a prismatic column, and a semi-circular column.

[0012] Furthermore, a spring pin is provided on the connecting head.

[0013] Furthermore, it also includes an extension rod, which is provided with a connecting end, and the connecting end can be connected to the connecting head.

[0014] Furthermore, it also includes a torque wrench, which is provided with a connecting end, and the connecting end can be connected to the connecting head.

[0015] Furthermore, the strength of the handle, the fixed head and the movable head are all greater than or equal to 300 MPa.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The buckle part of the utility model is arranged on the handle, and can cooperate with the whole body of the connecting ring of the electrical connector, avoiding the damage problem caused by the previous use of unmatched disassembly and assembly tools to disassemble and assemble the connecting ring; the buckle part of the utility model includes a fixed head and a movable head, the fixed head is arranged at the first end of the handle, the fixed head is connected with the adjustment slot of the movable head through a bayonet, and the matching size of the buckle part can be changed by changing the different slots of the bayonet falling into the adjustment slot, and this design improves the ability of the utility model to disassemble and assemble electrical connectors of various specifications; the fixed head of the utility model is provided with anti-slip teeth, which are used to cooperate with the anti-slip teeth of the connecting ring during disassembly and assembly, and can effectively avoid the utility model from slipping during the process of disassembling and assembling the connecting ring; the movable head of the utility model is provided with a hook, which is used to engage with the slot on the connecting ring or bite with the anti-slip teeth of the connecting ring during disassembly and assembly, and this design improves the stability during the disassembly and assembly process. The utility model is conducive to reducing operation risks and saving manpower investment and operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The technology of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0019] Figure 1 It is a three-dimensional schematic diagram of the disassembly and assembly device of the utility model;

[0020] Figure 2 It is a front view of the disassembly and assembly device of the utility model;

[0021] Figure 3 yes Figure 2Left view of

[0022] Figure 4 It is a front view of the movable head of the utility model;

[0023] Figure 5 It is a left side view of the fixing head, the bayonet pin, the handle and the connecting head of the utility model.

[0024] Reference numerals:

[0025] 1-handle; A-first end; B-second end;

[0026] 2- buckle part; C- matching size; 21- fixed head; 211- latch; 212- anti-slip teeth; 22- movable head; D- first end; E- second end; 221- adjustment slot; F- main slot; G- slot position; 222- hook;

[0027] 3-connector; 31-spring pin. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments and features in the embodiments in this application can be combined with each other without conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0029] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the accompanying drawings.

[0030] Reference Figures 1 to 5 , a disassembly and assembly device suitable for an electrical connector of an EMU, characterized in that it comprises a handle 1 and a buckling portion 2, wherein the buckling portion 2 is arranged on the handle 1 and can cooperate with the circumference of the connecting ring of the electrical connector; the buckling portion 2 comprises a fixed head 21 and a movable head 22, wherein the fixed head 21 is arranged at the first end A of the handle 1, and the fixed head 21 is connected to the adjusting slot 221 of the movable head 22 through a bayonet 211, and the matching size C of the buckling portion 2 can be changed by changing the different slot positions G of the bayonet 211 falling into the adjusting slot 221; the fixed head 21 is provided with anti-slip teeth 212 for cooperating with the anti-slip teeth of the connecting ring during disassembly and assembly; the movable head 22 is provided with a hook 222 for engaging with the slot on the connecting ring or biting with the anti-slip teeth of the connecting ring during disassembly and assembly.

[0031] The utility model can change the matching size C of the buckle part 2 by adjusting the slot 221 and the latch 211, so that the disassembly and assembly device can adapt to the disassembly and assembly of electrical connectors of different sizes, and effectively avoid workpiece damage caused by improper matching between the disassembly and assembly device and the connecting ring of the electrical connector.

[0032] Reference Figures 1 to 5 In one embodiment, the adjustment slot 221 includes a main slot F and a plurality of slots G, and the main slot F is connected to the plurality of slots G.

[0033] Reference Figures 1 to 5 In one embodiment, the movable head 22 is arc-shaped.

[0034] Reference Figure 4 In one embodiment, the cross-section of the movable head 22 gradually decreases from the first end D to the second end E with the hook. This design is conducive to setting an adjustment slot 221 near the first end D.

[0035] Reference Figure 1 , Figure 3 and Figure 5 In one embodiment, two ears are provided at one end of the fixed head 21 , and the bayonet 211 is provided between the two ears. Therefore, the movable head 22 is provided between the two ears of the fixed head 21 , and the adjustment slot 221 is connected to the bayonet 211 .

[0036] Reference Figures 1 to 5 In one embodiment, it also includes a connecting head 3, and the connecting head 3 is arranged at the second end B of the handle 1.

[0037] Reference Figure 1 In one embodiment, the handle 1 is a cylinder, a square column, or a prism.

[0038] In one embodiment, the handle 1 is a cylinder with a constant cross section or a cylinder with a variable cross section. Figure 1 In this embodiment, the handle 1 is a variable-section cylinder, and the cross-sectional diameter at the first end A is greater than the cross-sectional diameter at the second end B.

[0039] In one embodiment, the connector 3 is a triangular prism, a square prism, a prismatic prism, or a semi-circular prism. Figure 1 In this embodiment, the connector 3 is a square column.

[0040] Reference Figure 1 In one embodiment, a spring pin 31 is provided on the connecting head 3 .

[0041] In one embodiment, an extension rod is further included, and the extension rod is provided with a connecting end, and the connecting end can be connected to the connecting head 3; specifically, a connecting port is provided on the connecting end, and the connecting port can match the connecting head 3, and a slot hole matching the spring pin 31 is provided inside the connecting port.

[0042] In one embodiment, a torque wrench is further included, and the torque wrench is provided with a connection end, and the connection end can be connected to the connection head 3; specifically, the connection end is provided with a connection port, and the connection port can match the connection head 3, and a slot matching the spring pin 31 is provided inside the connection port. The utility model can accurately control the applied torque value by externally connecting a torque wrench.

[0043] When disassembling and assembling the electric connector of the EMU, the connector 3 is lengthened by connecting the extension rod, or the connector 3 is calibrated by connecting the torque wrench. The connection between the connector 3 and the extension rod or the torque wrench should ensure that the mechanical engagement is in place to prevent loosening or falling off during operation.

[0044] In one embodiment, the strength of the handle 1, the fixed head 21, the bayonet 211, the movable head 22, and the connecting head 3 are all greater than or equal to 300Mpa. The utility model is preferably made of high-strength steel to reduce the influence of elastic deformation on torsional force calibration, and at the same time increase the overall thickness of the disassembly and assembly device to reduce the contact pressure between the disassembly and assembly device and the connecting ring, thereby reducing the damage to the workpiece during the disassembly and assembly process.

[0045] Before using the utility model, the operator moves the movable head 22 to make the bayonet 211 withdraw from the slot G of the adjustment slot 221, and compares the size of the electrical connector to be disassembled and assembled, selects the appropriate slot G in the adjustment slot 221, and then embeds the bayonet 211 therein, thereby achieving the purpose of changing the matching size C of the snap-fit ​​portion 2 to adapt to electrical connectors of different specifications.

[0046] When using the utility model to disassemble and assemble the electrical connector, the hook 222 at the end of the movable head 22 is engaged with the slot on the electrical connector connecting ring. If the connecting ring does not have a slot, the hook 222 is engaged with the anti-slip teeth of the connecting ring. The fixed head 21 is fitted around the electrical connector connecting ring to ensure that the anti-slip teeth 212 of the fixed head 21 are engaged with the anti-slip teeth of the connecting ring. At the same time, ensure that the pin 211 on the fixed head 21 falls into the slot G of the adjustment slot 221 and will not be easily disengaged. Then hold the handle 1 by hand and apply a torque in one direction. The torque will be converted into a rotational torque of the electrical connector connecting ring through the fixed head 21 and the movable head 22. By using the utility model, the circular electrical connector of the EMU can be easily and quickly disassembled, the workload can be reduced, the work efficiency can be improved, and the accuracy during the operation can be ensured.

[0047] For other contents of the disassembly and assembly device suitable for the electric connector of a motor vehicle unit described in the utility model, please refer to the prior art and will not be described in detail here.

[0048] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A disassembly and assembly device suitable for an electric train electrical connector, characterized in that: It comprises a handle and a buckling part, wherein the buckling part is arranged on the handle and can cooperate with the circumference of the connecting ring; the buckling part comprises a fixed head and a movable head, wherein the fixed head is arranged at the first end of the handle, the fixed head is connected to the adjusting slot of the movable head through a bayonet pin, and the matching size of the buckling part can be changed by changing the different slot positions of the bayonet pin falling into the adjusting slot; the fixed head is provided with anti-slip teeth for cooperating with the anti-slip teeth of the connecting ring during disassembly and assembly; the movable head is provided with a hook for engaging with the slot on the connecting ring or biting with the anti-slip teeth of the connecting ring during disassembly and assembly.

2. The disassembly and assembly device for the electric connector of a train set according to claim 1, characterized in that: The adjustment slot includes a main slot and a plurality of slots, and the main slot is connected to the plurality of slots.

3. The disassembly and assembly device for the electric connector of a train set according to claim 1, characterized in that: The movable head is arc-shaped.

4. The disassembly and assembly device for an electric vehicle electrical connector according to claim 1, characterized in that: The cross section of the movable head gradually decreases from the first end to the second end with the hook.

5. The disassembly and assembly device for the electric connector of a train set according to claim 1, characterized in that: It also includes a connecting head, which is arranged at the second end of the handle.

6. The disassembly and assembly device for the electric connector of a train set according to claim 5, characterized in that: The connector is one of a triangular column, a square column, a prismatic column and a semi-circular column.

7. The disassembly and assembly device for the electric connector of a train set according to claim 5, characterized in that: The connecting head is provided with a spring pin.

8. The disassembly and assembly device for the electric connector of a train set according to claim 5, characterized in that: It also includes an extension rod, which is provided with a connecting end, and the connecting end can be connected to the connecting head.

9. The disassembly and assembly device for the electric connector of a train set according to claim 5, characterized in that: It also includes a torque wrench, which is provided with a connecting end, and the connecting end can be connected to the connecting head.

10. The disassembly and assembly device for an electric vehicle multiple unit electrical connector according to any one of claims 1 to 9, characterized in that: The strength of the handle, the fixed head and the movable head is greater than or equal to 300Mpa.

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