CN210221436U - Subway vehicle air tightness test plugging tool - Google Patents
Subway vehicle air tightness test plugging tool Download PDFInfo
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- CN210221436U CN210221436U CN201921376602.1U CN201921376602U CN210221436U CN 210221436 U CN210221436 U CN 210221436U CN 201921376602 U CN201921376602 U CN 201921376602U CN 210221436 U CN210221436 U CN 210221436U
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Abstract
The utility model discloses a subway vehicle air tightness test shutoff frock belongs to the experimental technical field of vehicle air tightness, including the shrouding, arranged a plurality of mounting hole around the edge of shrouding, one side of shrouding is equipped with annular seal spare, and the opposite side is equipped with and consolidates rib and this side and still is equipped with end door U type pipe and at least one quick-operation joint, and the one end and the quick-operation joint of this end door U type pipe all communicate with each other with the opposite side of shrouding, and the other end of end door U type pipe is established to transparent body to reach the installation agility that promotes the frock, reduced air leakage among the air tightness test process, provide the purpose of reliable guarantee to airtight test airtight, pressurize.
Description
Technical Field
The utility model belongs to the technical field of the vehicle airtight test, particularly, relate to a subway vehicle airtight test shutoff frock.
Background
The air-tight test bed is suitable for high-pressure air-tight detection tests, safety valve performance tests and correction, high-pressure gas cylinder filling and other professional production and manufacturing of products such as small valves, pipelines, underground tools and the like, and can be widely applied to the air-tight test bed in the vehicle air-tight test process so as to verify the air-tight performance of the whole vehicle.
Along with the rapid development of subway traffic, the speed of the subway vehicle is also greatly improved, and for ensuring the safe operation and the riding experience of the subway vehicle, the airtight test procedure of the vehicle is required to be added in the vehicle manufacturing process, the subway vehicle often runs in a tunnel, if the airtightness of the whole vehicle is not controlled well, the problems that the riding experience is influenced, the air flow is fluctuated, the pressure difference between the inside and the outside of the vehicle can impact the eardrum of a passenger and the like exist.
And when the vehicle air-tight test, need to seal whole car automobile body and sealing performance extremely important to air-tight test's accuracy, among the prior art, often there is the carriage tip shutoff effect not good among the testing process, leads to whole air-tight test's accuracy to receive the problem of very big influence, so need to design corresponding shutoff frock in order to improve the present situation urgently.
SUMMERY OF THE UTILITY MODEL
In view of this, in order to solve the above-mentioned problem that prior art exists, the utility model aims at providing a subway vehicle air tightness test shutoff frock is in order to reach the installation agility that promotes the frock, has reduced air leakage among the air tightness test process, provides the purpose of reliable guarantee to airtight test airtight, pressurize.
The utility model discloses the technical scheme who adopts does: the utility model provides a subway vehicle air tightness test shutoff frock, includes the shrouding, has arranged a plurality of mounting hole around the edge of shrouding, one side of shrouding is equipped with annular seal spare, and the opposite side is equipped with the reinforcement rib and this side still is equipped with end door U type pipe and at least one quick-operation joint, and the one end of this end door U type pipe and quick-operation joint all communicate with each other with the opposite side of shrouding, and the other end of end door U type pipe is established to transparent body.
Further, still include rings, rings locate on the shrouding to carry out convenient the lifting by crane to the shutoff frock.
Furthermore, each mounting hole is all set to the keyhole form, and each mounting hole corresponds the matching with railcar's through way mounting hole respectively, can with the direct adaptation of railcar, need not to adorn other locking mechanism outward, reduces installation cost, promotes the simple operation degree.
Further, the annular sealing element comprises an inner ring sealing ring and an outer ring sealing ring, the inner ring sealing ring and the outer ring sealing ring are arranged concentrically, so that better sealing performance is provided, and the phenomenon of air leakage in the inflating process is prevented.
Further, the reinforcing ribs are latticed and welded on the surface of the sealing plate, so that the pressure bearing capacity of the sealing plate is improved, and the sealing plate still cannot deform under the condition that the gas pressure reaches 6000 pa.
Furthermore, the shrouding adopts aluminum alloy panel, and the reinforcing rib adopts aluminum alloy square pipe to guarantee bulk strength and whole durability.
Furthermore, quick-operation joint is equipped with two, and one of them is connected with the air hose to its air feed, and another is equipped with the shutoff head to as reserve quick-operation joint.
The utility model has the advantages that:
1. by adopting the plugging tool for the metro vehicle air tightness test provided by the utility model, the annular sealing element on the sealing plate can ensure that the sealing plate is tightly attached to the vehicle end door without air leakage, and meanwhile, the reinforcing rib on the sealing plate can ensure that the sealing plate can not deform or leak air under the high-pressure condition; whether the air pressure in the vehicle can be observed in real time through the U-shaped pipe at the end door to reach a critical value or not, so that the blocking tool is prevented from being damaged due to overhigh air pressure, the blocking tool is convenient and fast to install and can be repeatedly used for multiple times, the air leakage probability in the air tightness test process is reduced, and the effects of air tightness test closure and pressure maintaining can be achieved.
Drawings
Fig. 1 is a schematic front structure view of the sealing tool for the metro vehicle air-tightness test provided by the present invention;
fig. 2 is a schematic view of a back structure of the sealing tool for the metro vehicle air-tightness test provided by the present invention;
fig. 3 is a schematic structural view of a storage rack adapted to the plugging tool for the metro vehicle air tightness test provided by the present invention;
the drawings are labeled as follows:
1-sealing plate, 2-reinforcing rib, 3-end door U-shaped pipe, 4-transparent pipe, 5-mounting hole, 6-quick connector, 7-hanging ring, 8-inner ring sealing ring, 9-outer ring sealing ring and 10-storage rack.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases for a person of ordinary skill in the art; the drawings in the embodiments are provided to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Example 1
As shown in fig. 1, the present embodiment discloses a plugging tool for a metro vehicle air tightness test, which includes a sealing plate 1, where the width × height of the sealing plate 1 is 1920mm × 2220mm, and the main body of the sealing plate is a 5mm thick aluminum alloy plate.
A plurality of mounting holes 5 are arranged around the edge of the sealing plate 1, each mounting hole 5 is arranged to be in a keyhole shape, each mounting hole 5 is correspondingly matched with 5 holes of a through passage mounting hole of the metro vehicle, the sealing plate 1 is locked on an end door of the metro vehicle through bolts, and meanwhile, the sealing plate is tightly attached to the end door of the metro vehicle after the tool is mounted and tensioned, and no air leakage phenomenon exists.
As shown in fig. 2, one side of the sealing plate 1 is provided with an annular sealing element, the annular sealing element includes an inner annular sealing ring 8 and an outer annular sealing ring 9, and the inner annular sealing ring 8 and the outer annular sealing ring 9 are concentrically arranged; wherein, interior ring seal 8 and outer ring seal 9 all adopt the wide 100mm thick 30 mm's CR adhesive tape, and the adhesive tape is pasted firmly, durable and sealed respond well.
Be equipped with reinforcing rib 2 at the opposite side of shrouding 1, this reinforcing rib 2 uses no concatenation aluminum alloy square pipe (50 x 50) in order to increase shrouding 1's bulk strength, guarantee that the frock is no deformation, gas leakage phenomenon when pressure is 6000Pa (the experimental required highest 4200Pa), and this side still is equipped with end door U type pipe 3 and at least one quick-operation joint 6, this end door U type pipe 3's one end and quick-operation joint 6 all communicate with each other with the opposite side of shrouding 1, the other end of end door U type pipe 3 is established to transparent body 4, so that the user is highly observed the liquid in this transparent body 4 through this transparent body 4, with judge whether interior air pressure value of railcar reaches the threshold value. The quick connector 6 is used as an air inlet, the quick connector 6 is matched with the air tightness test bed through a flexible air pipe, and air pressure data in the vehicle are directly transmitted to the air tightness test bed so as to meet the functions of air pressure measurement, data transmission and the like of the air tightness test bed; in this embodiment, two quick connectors 6 are arranged on the sealing plate 1, one of the quick connectors is connected with a flexible air pipe for supplying air to the quick connectors, air source air can be introduced into a carriage of a subway vehicle through the quick connectors 6, the operation is convenient and simple, an air inlet does not need to be found at another position of the carriage, and the other quick connector is provided with a blocking head to serve as a standby air inlet and is in a closed state in a normal state.
For realizing the convenient construction of lifting by crane of this shutoff frock, still including locating a pair of rings 7 on shrouding 1, rings 7 welded connection in on the shrouding 1, the crane pass through lifting rope, lifting hook alright lift by crane shrouding 1, in this embodiment, rings 7 structure safe and reliable, the interior handling of the factory building of being convenient for of adoption.
To further enhance the reinforcing effect of the reinforcing ribs 2 on the sealing plate 1, the reinforcing ribs 2 in this embodiment are in a grid shape and welded on the surface of the sealing plate 1, so as to ensure that the sealing plate 1 can still maintain no deformation and no leakage under the action of 6000Pa pressure.
As shown in fig. 3, in order to further improve the convenient transportation function of the plugging tool in the using process, a storage rack 10 adapted to the plugging tool is further provided, the storage rack 10 is provided with four wheels, the material of the wheels is polyurethane traceless rubber wheels, and the wheels are two fixed universal wheels and two universal wheels, so that the plugging tool is convenient to store; be equipped with a frock standing groove on storage rack 10, placed to one side in this frock standing groove shrouding 1 to transport shrouding 1, for the surface that prevents the shutoff frock produces mar, fish tail etc. should be provided with the rubber pad on storage rack 10's the corresponding position, in order to support shrouding 1 through the rubber pad.
Example 2
On the basis of embodiment 1, for the correct use of the plugging tool, the construction steps based on the plugging tool for the metro vehicle air tightness test are further disclosed in this embodiment as follows:
(1) preparation work: checking the materials completely and abnormally according to drawings and construction details; checking whether tools and technological equipment are complete or not according to the technological files, and judging whether the tools and the technological equipment are abnormal or not;
(2) end door plugging: hoisting the air tightness test plugging tool to the corresponding position of the vehicle end door and tightly attaching the air tightness test plugging tool to the frame of the vehicle end door, and mutually matching bolts and nuts to lock the air tightness test plugging tool on the vehicle end door through each mounting hole 5; when clamping, the bicycle body needs to be lightly taken and lightly placed so as to avoid scratching the bicycle body.
(3) Closing a sliding plug door, a side sliding door and each air outlet of the subway vehicle; the method comprises the following specific steps:
1) an external air source is adopted to charge air to an air supply pipeline of a sliding plug door of a vehicle, so that the sliding plug door is enabled to act on air and is closed;
2) the bicycle test door device is used for supplying power to the auxiliary lock of the sliding plug door, so that the sliding plug door is ensured to be closed in place, and the auxiliary lock of the sliding plug door is kept to be tightly pressed and sealed;
3) supplying power to the roof air conditioner to ensure that a fresh air inlet of the air conditioner is closed;
4) sealing the front end of the water outlet of the water seal device and closing the waste exhaust outlet;
5) and closing the side sliding door.
(4) Water is injected into the end gate U-shaped pipe 3, the quick connector 6 is connected with the airtight test bed through the soft air pipe, a pressure sensor, an air release valve and an inflation valve are sequentially connected between the inside of the airtight test bed and the port of the soft air pipe, and the inflation valve is communicated with an air source pipeline; preferably, a mark is arranged on the transparent tube body 4 of the end door U-shaped tube 3, and the liquid height is lower than the position of the mark in the airtight test; the method specifically comprises the following steps: water is injected into the transparent tube body 4 in the inflation process, the pressure maintaining and limiting effects of the tool are achieved, when the water level is higher than the mark point, the air pressure reaches the upper limit value, and the hidden danger of damage exists in the plugging tool.
(5) Starting the airtight test bed to perform airtight test, wherein the airtight test process comprises the following steps:
1) starting an air-tight test bed, then opening an inflation valve to inflate the interior of the metro vehicle, and when the pressure sensor detects that the pressure reaches a set maximum value (4000Pa), closing the inflation valve to enable the metro vehicle to deflate naturally;
2) when the system detects that the pressure reaches the set starting timing pressure, recording the starting time; next, the system detects the pressure change in real time until the pressure reaches the end pressure, records the end time, opens the air release valve, and starts to release air;
3) in this example, the test was successful when the measurement pressure was decreased from 2600pa to 1000pa for a time interval of 15S or more; otherwise, the test fails.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (7)
1. The utility model provides a subway vehicle air tightness test shutoff frock, includes the shrouding, its characterized in that has arranged a plurality of mounting hole along the edge of shrouding on the periphery, one side of shrouding is equipped with annular seal spare, and the opposite side is equipped with the reinforcement rib and this side still is equipped with end door U type pipe and at least one quick-operation joint, and the one end of this end door U type pipe and quick-operation joint all communicate with each other with the opposite side of shrouding, and the other end of end door U type pipe is established to transparent body.
2. The plugging tool for the airtight test of the metro vehicle according to claim 1, further comprising a hanging ring, wherein the hanging ring is arranged on the sealing plate.
3. The plugging tool for the airtight test of the metro vehicle according to claim 1, wherein each mounting hole is in a keyhole shape, and each mounting hole is correspondingly matched with a through passage mounting hole of the metro vehicle.
4. The sealing tool for the airtight test of the metro vehicle according to claim 1, wherein the annular sealing element comprises an inner ring sealing ring and an outer ring sealing ring, and the inner ring sealing ring and the outer ring sealing ring are concentrically arranged.
5. The plugging tool for the airtight test of the metro vehicle according to claim 1, wherein the reinforcing ribs are in a grid shape and welded on the surface of the closing plate.
6. The airtight test plugging tool for metro vehicles according to claim 1 or 5, wherein the sealing plate is made of aluminum alloy plates, and the reinforcing ribs are made of aluminum alloy square tubes.
7. The plugging tool for the airtight test of the metro vehicle according to claim 1, wherein two quick connectors are provided, one of the quick connectors is connected with a flexible air pipe for supplying air to the quick connector, and the other quick connector is provided with a plugging head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921376602.1U CN210221436U (en) | 2019-08-22 | 2019-08-22 | Subway vehicle air tightness test plugging tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921376602.1U CN210221436U (en) | 2019-08-22 | 2019-08-22 | Subway vehicle air tightness test plugging tool |
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| Publication Number | Publication Date |
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| CN210221436U true CN210221436U (en) | 2020-03-31 |
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| CN201921376602.1U Active CN210221436U (en) | 2019-08-22 | 2019-08-22 | Subway vehicle air tightness test plugging tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426166A (en) * | 2019-08-22 | 2019-11-08 | 中车成都机车车辆有限公司 | A kind of railcar air seal test blocks tooling and its packaging technology |
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2019
- 2019-08-22 CN CN201921376602.1U patent/CN210221436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426166A (en) * | 2019-08-22 | 2019-11-08 | 中车成都机车车辆有限公司 | A kind of railcar air seal test blocks tooling and its packaging technology |
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