Auxiliary clamp for rail transit vehicle body airtightness detection

Abstract

The utility model discloses an auxiliary fixture for detecting the air tightness of a rail transit vehicle body, which comprises a [-shaped frame structure consisting of an upper baffle plate, a vertical plate and a lower baffle plate, a spiral pressing rod is connected onto the upper baffle plate in a penetrating manner, an air port access device is connected onto the vertical plate in a penetrating manner, and the air port access device is connected with an air pipe connected with compressed air. According to the utility model, the spiral pressing rod is used for clamping and loosening and is used for fixing a to-be-inspected position of a rail transit vehicle body; the tuyere access device is connected with an air pipe of compressed air, so that the internal air pressure is ensured; the vertical plate abuts against the side wall of the inner cavity of the rail transit vehicle body, so that gaps are avoided, and the airtight test effect is ensured. According to the design, only one device is needed for operation, the device is convenient to use, the gap problem caused by manual control in the prior art is effectively solved, and therefore the airtightness detection result is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a detection device, especially a kind of auxiliary fixture for rail transit vehicle body air tightness detection. BACKGROUND

[0002] When routine rail transit vehicle is produced, vehicle body roof is welded and needs to be carried out air tightness detection, and the accuracy of detection data is very important.Currently, two people cooperate to complete air tightness experiment, one person uses white cloth to block the air outlet, and one person controls the air inlet, the air inlet needs manual control, there may be gap, it is difficult to control the size of air inlet, resulting in detection result error. UTILITY MODEL CONTENT

[0003] The utility model aims at at least one of the technical problems existing in prior art is solved.For this purpose, the utility model provides a car transfer platform overrunning detection device for automatically detecting the overrunning problem of rail transit vehicle.

[0004] The technical scheme adopted by the utility model to solve the above technical problems is:

[0005] A kind of auxiliary fixture for rail transit vehicle body air tightness detection, it includes by upper baffle, vertical plate and lower baffle the frame structure of the shape of " [ " is formed, the upper baffle is threaded with screw press rod, the vertical plate is threaded with air inlet access device, the air inlet access device is connected with the air pipe of compressed air.

[0006] According to some embodiments of the utility model, the screw press rod top is provided with rotating handle.

[0007] According to some embodiments of the utility model, the air inlet access device surface is provided with the convex rib of clamping air pipe.

[0008] According to some embodiments of the utility model, the screw press rod lower end is provided with pressure head.

[0009] According to some embodiments of the utility model, the upper baffle and the vertical plate are perpendicular to each other.

[0010] According to some embodiments of the utility model, the lower baffle and the vertical plate are perpendicular to each other.

[0011] According to some embodiments of the utility model, the air inlet access device is sealed and threaded on the vertical plate.

[0012] According to some embodiments of the utility model, the other end of the air inlet access device is communicated with the inner cavity of rail transit vehicle body.

[0013] According to some embodiments of the utility model, the vertical plate is pressed on the inner cavity side wall of rail transit vehicle body.

[0014] The utility model has at least the following beneficial effects: the product uses the spiral press bar to clamp and loosen, is used for fixing the position of the rail transit vehicle body to be inspected, the air pipe connected with compressed air is connected through the air inlet access device, the internal gas pressure is guaranteed, the vertical plate is pressed on the inner cavity side wall of the rail transit vehicle body, the gap is avoided, and the air tightness test effect is guaranteed. The design only needs one operation, is convenient to use, and effectively solves the gap problem of previous manual control, so as to guarantee the result of air tightness detection. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in connection with the drawings and examples, wherein:

[0016] Figure 1 It is the structural schematic diagram of the utility model; DETAILED DESCRIPTION

[0017] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0018] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of up, down and the like, is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as limiting the utility model.

[0019] In the description of the utility model, more than two means more than two. If there is a description of first, second, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0020] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be broadly understood, and the skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0021] Reference Figure 1The utility model provides an auxiliary fixture for air tightness detection of rail transit vehicle body, which comprises a frame structure 1 in the shape of [ formed by an upper baffle 11, a vertical plate 12 and a lower baffle 13, the upper baffle 11 is perpendicular to the vertical plate 12, and the lower baffle 13 is perpendicular to the vertical plate 12. A screw press rod 2 is connected to the upper baffle 11, and a tuyere access device 3 is connected to the vertical plate 12, the tuyere access device 3 is connected to the air pipe of compressed air to ensure the internal gas pressure, and a convex rib 31 for clamping the air pipe is arranged on the surface of the tuyere access device 3 to facilitate installation.

[0022] In order to facilitate the rotation of the screw press rod 2, a rotating handle 21 is arranged at the top of the screw press rod 2. In order to better press the rail transit vehicle body on the lower baffle 13, a pressing head 22 is arranged at the lower end of the screw press rod 2. The screw press rod 2 is used for clamping and loosening to fix the position of the rail transit vehicle body to be inspected.

[0023] In order to ensure the sealing property of the product, the tuyere access device 3 is sealed and connected to the vertical plate 12, the other end of the tuyere access device 3 is communicated with the internal cavity of the rail transit vehicle body during use, and the vertical plate 12 is pressed on the side wall of the internal cavity of the rail transit vehicle body during installation to avoid the gap and ensure the air tightness test effect.

[0024] The product uses the screw press rod 2 for clamping and loosening to fix the position of the rail transit vehicle body to be inspected, the tuyere access device 3 is connected to the air pipe of compressed air to ensure the internal gas pressure, and the vertical plate 12 is pressed on the side wall of the internal cavity of the rail transit vehicle body to avoid the gap and ensure the air tightness test effect. The design only needs one operation, is convenient to use, and effectively solves the gap problem caused by manual control, thereby ensuring the air tightness detection result.

[0025] The above detailed description of the preferred embodiment of the utility model. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the utility model. Therefore, any technical scheme obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the utility model shall be within the protection scope determined by the claims.

Claims

1. An auxiliary fixture for airtightness testing of rail transit vehicle bodies, characterized in that: It includes a frame structure (1) in the shape of "[" consisting of an upper baffle (11), a vertical plate (12) and a lower baffle (13). A spiral pressure rod (2) is threaded through the upper baffle (11), and an air inlet access device (3) is threaded through the vertical plate (12). The air inlet access device (3) is connected to an air duct that connects to compressed air.

2. The auxiliary fixture for airtightness testing of rail transit vehicle body according to claim 1, characterized in that: The top of the spiral pressure rod (2) is provided with a rotating handle (21).

3. The auxiliary fixture for airtightness testing of rail transit vehicle body according to claim 1, characterized in that: The surface of the air inlet access device (3) is provided with protruding ribs (31) that clamp the air duct.

4. The auxiliary fixture for airtightness testing of rail transit vehicle body according to claim 1, characterized in that: The lower end of the spiral pressure rod (2) is provided with a pressing head (22).

5. An auxiliary fixture for airtightness testing of rail transit vehicle bodies according to claim 1, characterized in that: The upper baffle (11) is perpendicular to the vertical plate (12).

6. An auxiliary fixture for airtightness testing of a rail transit vehicle body according to claim 5, characterized in that: The lower baffle (13) is perpendicular to the vertical plate (12).

7. An auxiliary fixture for airtightness testing of rail transit vehicle bodies according to claim 1, characterized in that: The air inlet access device (3) is sealed and passed through the vertical plate (12).

8. An auxiliary fixture for airtightness testing of rail transit vehicle bodies according to claim 1, characterized in that: The other end of the air inlet access device (3) is connected to the cavity inside the rail transit vehicle.

9. An auxiliary fixture for airtightness testing of a rail transit vehicle body according to claim 1, characterized in that: The upright plate (12) presses against the inner cavity side wall of the rail transit vehicle body.

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