Air spring process sealing plug tool for motor train unit

Abstract

The utility model discloses a motor train unit air spring process sealing plug tool. The motor train unit air spring process sealing plug tool comprises a disc-shaped body, an outer ring plug ring, an air inlet plug ring and an adsorption device. The outer ring blocking ring, the air inlet blocking ring and the adsorption device are all arranged on the upper end face of the disc-shaped main body; the outer ring blocking ring is of an annular structure arranged on the outermost edge of the upper end face of the disc-shaped body, and the outer ring blocking ring can be exactly embedded into a groove in the outer edge of an air inlet hole of the air spring. The air inlet blocking ring is located on the inner side of the outer ring blocking ring and can be exactly embedded into an air spring air inlet hole. The adsorption devices are magnetic bodies which are uniformly arranged on the upper end surface of the disc-shaped main body; through the double-layer plugging design of the outer ring plugging ring and the air inlet plugging ring, the air inlet of the air spring can be effectively sealed, and impurities are prevented from interfering the working performance of the air spring; the device is light, portable and high in adaptability; through the adsorption device, the installation method is simple, and operation of operators is facilitated.

Description

Technical Field

[0001] The utility model relates to a sealing tool, in particular to a sealing tool for an air spring process of a motor vehicle unit. Background Art

[0002] The EMU air spring is a non-metallic spring that uses the compressibility of air to achieve elasticity by adding pressurized air into a flexible and sealed container. When the air spring is working, it uses the internal pressurized air to bear the vertical load, and the flexibility of the airbag and rubber pile bears the deformation in all directions. The height valve is used to fill and exhaust to keep the working height constant. The two air springs on the same bogie eliminate the abnormal pressure difference through the differential pressure valve, thereby maintaining the stability of the car body.

[0003] The advanced maintenance of EMUs involves the disassembly of the running gear under the vehicle. When the air spring is separated from the vehicle body, the air spring air inlet on the vehicle body will be exposed. In order to prevent dust and other impurities from entering the air inlet, on-site operators often use paper-based tape to cover the air spring air inlet. However, due to the lack of stickiness of the paper-based tape, the tape often falls off and foreign matter enters, which seriously affects the performance of the air spring during operation. In addition, the pasting of the paper-based tape is unsightly and irregular. Therefore, it was decided to develop a tooling with good sealing performance, beautiful appearance, and easy operation, to achieve quick sealing of the air spring air inlet, improve the maintenance efficiency of EMUs, and ensure the safety of train operation. Utility Model Content

[0004] In order to solve this technical problem, the utility model aims to solve the problem that in the disassembly operation of the undercarriage of the EMU in the prior art, the air spring air inlet hole is sealed with tape, which is easy to fall off, has poor sealing, is unsightly, and is difficult to operate.

[0005] The technical solution adopted by the utility model is: a process sealing plugging tool for air springs of EMUs, comprising a disc-shaped body, an outer ring plugging ring, an air inlet plugging ring and an adsorption device; the outer ring plugging ring, the air inlet plugging ring and the adsorption device are all arranged on the upper end face of the disc-shaped body; the outer ring plugging ring is an annular structure arranged on the outermost edge of the upper end face of the disc-shaped body, and the outer ring plugging ring can be just embedded in the groove on the outer edge of the air spring inlet hole; the air inlet plugging ring is located on the inner side of the outer ring plugging ring and can be just embedded in the air spring inlet hole in the groove; the adsorption device is a magnetic body evenly arranged on the upper end face of the disc-shaped body.

[0006] Furthermore, a circle of outer ring blocking ring elastic pads is provided at the outer top end of the outer ring blocking ring.

[0007] Furthermore, a circle of air inlet blocking ring elastic pad is provided at the outer top end of the air inlet blocking ring.

[0008] Furthermore, a handle is provided on the back of the disc-shaped body.

[0009] Furthermore, a reinforcing rod is provided between the outer ring blocking ring and the air inlet blocking ring, and the reinforcing rod is a hollow structural rod with a plurality of grooves provided on the cross section.

[0010] Furthermore, the adsorption device may also be a suction cup evenly and fixedly arranged on the upper end surface of the disc-shaped body.

[0011] Furthermore, the air inlet blocking ring can be designed to have different sizes. The air inlet blocking rings of different sizes are connected to the disc-shaped body through threaded structures of different sizes. The air inlet blocking rings can be detachably connected to the disc-shaped body to adapt to air inlets of different sizes.

[0012] The beneficial effects and features of the utility model are:

[0013] 1. The utility model of the sealing plugging tooling for the EMU air spring process is designed according to the actual structural form of the air inlet hole of the EMU air spring. The double-layer sealing design of the outer ring plugging ring and the air inlet plugging ring can effectively seal the air inlet hole of the air spring and prevent impurities from interfering with the working performance of the air spring.

[0014] 2. The utility model of the EMU air spring process sealing plugging tooling is light and portable, and has strong adaptability; through the adsorption device, the installation method is simple, and it is convenient for operators to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0016] Figure 2 yes Figure 1 A schematic diagram of the structure enlarged at point A;

[0017] Figure 3 is a schematic diagram of the cross-sectional structure of the reinforcing rod;

[0018] Figure 4 This is a schematic diagram of the overall structure of another preferred embodiment of the utility model (adapting to air inlets of different sizes);

[0019] Figure 5 This is a schematic diagram of the structure of the handle of a preferred embodiment of the utility model;

[0020] The meanings of the reference numerals are as follows: 1-disc-shaped body, 11-handle, 2-outer ring blocking ring, 21-outer ring blocking ring elastic pad, 3-inlet blocking ring, 4-adsorption device, 5-reinforcement rod, 6-threaded structure; DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings:

[0022] Please refer to Figure 1 , Figure 2 The utility model relates to a process sealing plugging tool for an EMU air spring, comprising a disc-shaped body 1, an outer ring plugging ring 2, an air inlet plugging ring 3 and an adsorption device 4; the outer ring plugging ring 2, the air inlet plugging ring 3 and the adsorption device 4 are all arranged on the upper end surface of the disc-shaped body 1; the outer ring plugging ring 2 is an annular structure arranged on the outermost edge of the upper end surface of the disc-shaped body 1, and the outer ring plugging ring 2 can be just embedded in the groove on the outer edge of the air inlet hole of the air spring (the air inlet hole of the air spring is arranged in this groove, that is, the groove forms a double-layer annular structure here); the air inlet plugging ring 3 is located on the inner side of the outer ring plugging ring 2 and can be just embedded in the air inlet hole of the air spring; the adsorption device 4 is a magnetic body evenly arranged on the upper end surface of the disc-shaped body 1, such as a magnet.

[0023] In order to reduce weight, the disc-shaped main body 1, the outer ring blocking ring 2, and the air inlet blocking ring 3 are preferably made of plastic.

[0024] A circle of outer ring blocking ring elastic pad 21 is arranged at the outer top end of the outer ring blocking ring 2, such as elastic materials such as rubber and silicone.

[0025] The outer top of the air inlet blocking ring 3 is provided with a circle of air inlet blocking ring elastic pad (the structure is similar to the outer ring blocking ring elastic pad 21, so it is not marked in the figure), such as elastic materials such as rubber and silicone.

[0026] As a preferred solution, in order to facilitate holding during operation, an arc-shaped handle 11 is further provided on the back of the disc-shaped body 1, and some anti-slip patterns can be provided on the handle 11 to facilitate the operator to hold it.

[0027] Please refer to Figure 3 A reinforcing rod 5 is also arranged between the outer ring blocking ring 2 and the air inlet blocking ring 3. The reinforcing rod 5 is a hollow structural rod with a plurality of grooves arranged in the cross section. The groove structure can increase the section modulus of the cross section to increase the longitudinal strength.

[0028] As a preferred solution, the adsorption device 4 can also be a suction cup evenly and fixedly arranged on the upper end surface of the disc-shaped main body 1; in some other embodiments, a mixed arrangement of suction cups and magnets, such as evenly spaced arrangement of suction cups and magnets, can also be adopted, which has stronger adaptability to the adsorption site.

[0029] Please refer to Figure 4As a preferred solution, the air inlet blocking ring 3 can be designed to be of different sizes. The air inlet blocking rings 3 of different sizes (two are drawn in the figure) are connected to the threaded structures 6 of different diameters on the disc-shaped body, and can be detachably connected to the disc-shaped body to adapt to air inlets of different sizes; some scale marks can be added to the back of the disc-shaped body to indicate the applicable range of air inlet blocking rings of different specifications, so as to facilitate quick selection.

[0030] Here’s how to use it:

[0031] Just align the tooling with the air inlet hole of the air spring, and use the suction force of the adsorption device to adsorb the tooling to the vehicle body (if it is a suction cup, you need to press upwards slightly to allow the suction cup to adsorb), thereby achieving a sealing effect.

[0032] In some embodiments, in order to improve the intelligent level of management, a radio frequency identification RFID tag or a near-field wireless communication NFC chip is embedded on the disc-shaped body of the sealing plugging tool, and the chip number of the RFID tag or NFC chip is the unique identification ID of the sealing plugging tool; a reading device is used for on-site workers to obtain the sealing plugging tool ID information in the RFID tag or NFC chip; a mobile terminal is provided with an RFID / NFC reading function module, through which the sealing plugging tool ID can be scanned and obtained, and the ID and the vehicle equipment information that needs to be sealed are uploaded and bound to the server to form the data used by the sealing plugging tool; the server is used to collect and store the use data of each sealing plugging tool, and can use statistics and status tracking of the sealing plugging tool based on this, and form sufficient sealing operation maintenance records for different vehicle equipment, and can also judge the use status of the sealing plugging tool according to the setting, and send back the status data to the mobile terminal to prompt replacement. The above-mentioned application of RFID / NFC technology can realize the traceability and use status monitoring of the sealing plugging tool throughout the life cycle, making the replacement and maintenance and other guarantee work more accurate, thereby effectively improving the sealing management efficiency of the EMU equipment.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the description only illustrate the structural relationship and principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A process sealing plugging tool for air spring of EMU, characterized in that , comprising a disc-shaped body (1), an outer ring blocking ring (2), an air inlet blocking ring (3) and an adsorption device (4); the outer ring blocking ring (2), the air inlet blocking ring (3) and the adsorption device (4) are all arranged on the upper end surface of the disc-shaped body (1); the outer ring blocking ring (2) is an annular structure arranged on the outermost edge of the upper end surface of the disc-shaped body (1), and the outer ring blocking ring (2) can be embedded in the groove on the outer edge of the air spring air inlet hole; the air inlet blocking ring (3) is located on the inner side of the outer ring blocking ring (2) and can be embedded in the air spring air inlet hole in the groove; the adsorption device (4) is a magnetic body evenly arranged on the upper end surface of the disc-shaped body (1).

2. The air spring process sealing plugging tool for EMU according to claim 1 is characterized in that A circle of outer ring blocking ring elastic pad (21) is provided at the outer top end of the outer ring blocking ring (2).

3. The air spring process sealing plugging tool for EMU according to claim 1 is characterized in that A circle of air inlet blocking ring elastic pad is provided at the outer top end of the air inlet blocking ring (3).

4. The air spring process sealing plugging tool for EMU according to claim 1 is characterized in that A handle (11) is also provided on the back of the disc-shaped body (1).

5. The air spring process sealing plugging tool for EMU according to claim 1 is characterized in that A reinforcing rod (5) is also provided between the outer ring blocking ring (2) and the air inlet blocking ring (3), and the reinforcing rod (5) is a hollow structural rod with a plurality of grooves provided in the cross section.

6. The air spring process sealing plugging tool for EMU according to claim 1 is characterized in that The adsorption device (4) may also be a suction cup evenly and fixedly arranged on the upper end surface of the disc-shaped main body (1).

7. The air spring process sealing plugging tool for EMU according to any one of claims 1 to 6 is characterized in that The air inlet blocking ring (3) can be designed to have different sizes. The air inlet blocking rings (3) of different sizes are connected to the disc-shaped body through thread structures (6) of different diameters, and are detachably connected to the disc-shaped body.

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