Anti-extrusion testing device and motor train unit sliding plug door platform compensator

Abstract

The utility model discloses an anti-extrusion testing device and a motor train unit sliding plug door platform compensator, the anti-extrusion testing device comprises a hand-held part and a movable part, one end of the hand-held part is provided with a U-shaped part, the other end of the hand-held part is provided with a first bending part, and the first bending part is perpendicular to the hand-held part; the movable part is rotationally connected with the first bending part, a second bending part is arranged at one end, far away from the first bending part, of the movable part, and the second bending part is perpendicular to the movable part. According to the anti-extrusion testing device and the motor train unit sliding plug door platform compensator, the movable part and the handheld part which are rotationally connected are adopted, the movable part can be switched between the 90-degree state and the 180-degree state according to the actual extrusion testing requirement, when the movable part is in the 90-degree state, the second bent part makes contact with the handheld part and is parallel to the first bent part, and the second bent part is in contact with the handheld part and is parallel to the first bent part; and the stability of the movable part in the test state can be effectively ensured, so that the test effect is ensured.

Description

Technical Field

[0001] The utility model relates to an anti-extrusion testing device and a plug sliding door platform compensator for an EMU, belonging to the technical field of railway vehicles. Background Art

[0002] During the operation of EMUs, the Sierra door system involves driving safety. The Sierra door system of some models includes a platform compensator. Due to its complex structure and the movement position of the compensator is related to the door switch logic, the Sierra door system with a platform compensator has a higher failure rate. Therefore, during the maintenance and debugging of EMU vehicles, the extension and retraction anti-squeezing functions of the platform compensator need to be checked one by one to avoid the Sierra door being unable to open or close due to a failure of the platform compensator, which would cause a driving safety hazard.

[0003] In order to improve the production debugging efficiency, reduce certain debugging costs, and solve the problem that the debugging efficiency is affected by the large number of debugging tools that are inconvenient to carry during the debugging process, an anti-extrusion test device and an EMU plug door platform compensator are urgently needed. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide an anti-extrusion test device and a EMU plug door platform compensator. By adopting a rotating connected movable part and a hand-held part, the movable part can be switched to 90 degree and 180 degree states according to actual extrusion test requirements. When the movable part is in the 90 degree state, the second bending part is in contact with the hand-held part, and the second bending part is parallel to the first bending part, which can effectively ensure the stability of the movable part in this state during the test to ensure the test effect.

[0005] In order to achieve the above purpose / solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0006] In a first aspect, the utility model provides an anti-extrusion testing device, comprising a handheld portion and a movable portion, wherein:

[0007] A U-shaped portion is provided at one end of the hand-held portion, and a first bending portion is provided at the other end, wherein the first bending portion is perpendicular to the hand-held portion;

[0008] The movable portion is rotatably connected to the first bending portion, and a second bending portion is provided at one end of the movable portion away from the first bending portion, and the second bending portion is perpendicular to the movable portion;

[0009] The included angle between the movable portion and the first bending portion is 90° or 180°. When the included angle is 90°, the second bending portion is in contact with the hand-held portion, and the second bending portion is parallel to the first bending portion.

[0010] Furthermore, it also includes a hinge, the first bending portion is connected to the hand-held portion through the hinge, and the hinge is fixed to the hand-held portion and the first bending portion through a countersunk bolt.

[0011] Furthermore, it also includes a hand-held handle, which is installed at the bottom of the hand-held part.

[0012] In a second aspect, the utility model provides a platform compensator for a plug sliding door of an EMU, comprising a platform compensator, a compensator pedal and the anti-squeezing test device described in the first aspect, wherein:

[0013] The compensator pedal is movably mounted on one side of the platform compensator and can be extended and retracted relative to the platform compensator;

[0014] The bottom side of the platform compensator is provided with an inwardly concave flap handle, and the flap handle is adapted to the U-shaped portion of the anti-extrusion test device;

[0015] When the compensator pedal is in an extended state, the angle between the first bent portion and the movable portion is 180°, and the inner side surfaces of the first bent portion and the movable portion are in contact with the outer side surface of the compensator pedal;

[0016] When the compensator pedal is in a retracted state, the angle between the first bent portion and the movable portion is 90°, and the outer side surface of the first bent portion contacts the inner side surface of the compensator pedal.

[0017] Furthermore, the anti-extrusion test device also includes a protective rubber, which is installed on the contact surface between the anti-extrusion test device, the platform compensator and the compensator pedal.

[0018] Furthermore, the protective rubber comprises a four-piece split structure.

[0019] Furthermore, the protective rubber includes a first protective rubber, a second protective rubber, a third protective rubber and a fourth protective rubber respectively installed on the hand-held portion, the inner side of the movable portion, the outer side of the movable portion and the first bending portion.

[0020] Furthermore, the protective rubber comprises rubber.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The anti-extrusion test device provided by the utility model adopts a rotating connected movable part and a hand-held part, and the movable part can be switched to a 90-degree state and a 180-degree state according to actual extrusion test requirements. When the movable part is in the 90-degree state, the second bending part contacts the hand-held part, and the second bending part is parallel to the first bending part, which can effectively ensure the stability of the movable part in this state during the test, so as to ensure the test effect;

[0023] The EMU plug door platform compensator provided by the utility model, by adapting to the above-mentioned anti-extrusion test device, uses the existing platform compensator as the force-bearing part under two operating conditions, without the need for an external fixing device. The hand-held part only serves as a support and does not bear the motor torque of the compensator pedal extending or retracting. It is light and portable during operation and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the anti-extrusion testing device provided in Example 1;

[0025] Figure 2 is a schematic structural diagram of the anti-extrusion testing device provided in the first embodiment;

[0026] Figure 3 is a schematic structural diagram of the anti-extrusion testing device provided in the first embodiment in the second state;

[0027] Figure 4 It is a structural schematic diagram of the EMU plug sliding door platform compensator provided in the second embodiment with the compensator pedal in the extended state;

[0028] Figure 5 It is a structural schematic diagram of the EMU plug sliding door platform compensator provided in the second embodiment with the compensator pedal in the retracted state;

[0029] Figure 6 yes Figure 4 The enlarged schematic diagram of the structure of the compensator pedal in the EMU plug door platform compensator shown;

[0030] Figure 7 yes Figure 5 The enlarged schematic diagram of the structure at the compensator pedal in the EMU plug door platform compensator is shown.

[0031] In the figure: 1. Hand-held part; 2. Hinge; 3. Movable part; 4. Countersunk bolt; 5. First protective rubber; 6. Second protective rubber; 7. Third protective rubber; 8. Fourth protective rubber; 9. Platform compensator; 10. Compensator pedal. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0033] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be 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 by specific circumstances. Embodiment 1

[0035] like Figure 1~Figure 3 As shown, this embodiment provides an anti-extrusion testing device, including a handheld part 1 and a movable part 3, wherein:

[0036] The handheld part 1 is provided with a U-shaped portion at one end and a first bending portion at the other end, wherein the first bending portion is perpendicular to the handheld part 1;

[0037] The movable portion 3 is rotatably connected to the first bending portion, and a second bending portion is provided at one end of the movable portion 3 away from the first bending portion, and the second bending portion is perpendicular to the movable portion 3;

[0038] The included angle between the movable portion 3 and the first bending portion is 90° or 180°. Figure 2 It is a schematic diagram of an angle of 180°. Figure 3 is a schematic diagram of an angle of 90°, such as Figure 3 As shown, when the included angle is 90°, the second bending portion is in contact with the hand-held portion 1, and the second bending portion is parallel to the first bending portion.

[0039] In the above technical scheme, the anti-extrusion test device provided in this embodiment adopts a rotating connected movable part 3 and a hand-held part 1, and the movable part 3 can be switched to 90 degree and 180 degree states according to actual extrusion test requirements. When the movable part 3 is in the 90 degree state, the second bending portion is in contact with the hand-held part 1, and the second bending portion is parallel to the first bending portion, which can effectively ensure the stability of the movable part 3 in this state during the test to ensure the test effect. Embodiment 2

[0040] The anti-extrusion test device for the plug sliding door platform compensator of an EMU provided in this embodiment is different from the anti-extrusion test device for the plug sliding door platform compensator of an EMU provided in the first embodiment in that:

[0041] In order to realize the rotational connection between the movable part 3 and the handheld part 1 , a hinge 2 is also included. The first bending part is connected to the handheld part 1 through the hinge 2 , and the hinge 2 is fixed to the handheld part 1 and the first bending part through a countersunk bolt 4 .

[0042] In order to facilitate the holding of the handheld part 1 so as to be supported by the handheld part 1 , a handheld handle is also included, and the handheld handle is installed at the bottom of the handheld part 1 . Embodiment 3

[0043] like Figure 4~Figure 7 As shown, this embodiment provides a platform compensator for plug sliding door of a train unit, including a platform compensator 9, a compensator pedal 10 and the anti-squeezing test device described in the first embodiment, wherein:

[0044] The compensator pedal 10 is movably mounted on one side of the platform compensator 9 and can be extended and retracted relative to the platform compensator 9;

[0045] The bottom side of the platform compensator 9 is provided with an inwardly concave flap handle, and the flap handle is adapted to the U-shaped portion of the anti-extrusion test device;

[0046] like Figure 4 As shown, when the compensator pedal 10 is in the extended state, the angle between the first bent portion and the movable portion 3 is 180°, and the inner side surfaces of the first bent portion and the movable portion 3 are in contact with the outer side surface of the compensator pedal 10;

[0047] like Figure 5 As shown, when the compensator pedal 10 is in a retracted state, the angle between the first bent portion and the movable portion 3 is 90°, and the outer side surface of the first bent portion contacts the inner side surface of the compensator pedal 10 .

[0048] The anti-extrusion test process is as follows:

[0049] like Figure 6 and Figure 7As shown, when the platform compensator is extended to prevent extrusion, the following steps are performed: when the platform compensator pedal 10 is retracted, the movable part 3 is 180° with the handheld main body 1, the entire platform compensator anti-extrusion test device is held, the left end U-shaped part of the handheld main body 1 is inserted into the platform compensator 9 flap buckle part, and it is pressed against the right side, and the platform compensator pedal 10 is operated to extend. When the platform compensator pedal 10 is extended to the movable part 3, it is blocked. When the resistance exceeds the program-set extension anti-extrusion force, the platform compensator pedal 10 automatically retracts, and then tries to extend again. After repeating 3 times, it is retained at the maximum position that can be extended and stops. At this time, the platform compensator pedal 10 is operated to retract. After retraction, the platform compensator anti-extrusion test device can be removed to complete the extension anti-extrusion function test.

[0050] When performing the platform compensator retraction and anti-squeezing function: when the platform compensator pedal 10 is extended into place, make the movable part 3 90° with the handheld main body 1, hold the entire platform compensator anti-squeezing test device, insert the U-shaped part at the left end of the handheld main body 1 into the flap buckle part of the platform compensator 9, move it to the left, so that the original top part of the movable part 3 is in close contact with the right end surface of the platform compensator 9, operate the platform compensator pedal 10 to start retracting, when the platform compensator pedal 10 is retracted to the left until the right end surface of the handheld main body 1 contacts the inner side of the platform compensator pedal 10, it is subjected to blocking force, when the resistance exceeds the retraction anti-squeezing force set by the program, the platform compensator pedal 10 automatically extends out, and then tries to retract again, after repeating 3 times, it stays in the extended position and stops, at this time the platform compensator anti-squeezing test device can be removed to complete the extension anti-squeezing function test.

[0051] By adapting the anti-extrusion test device provided in Example 1, the existing platform compensator 9 is used as the force-bearing part in both use conditions, without the need for an external fixing device. The handheld part only serves as a support and does not bear the motor torque of the extension or retraction of the compensator pedal 10. It is light and portable during operation and easy to use.

[0052] In order to achieve soft contact between the anti-extrusion test device and each contact surface to protect the surface coating of the workpiece being tested, the anti-extrusion test device also includes a protective rubber, which is installed on the contact surface between the anti-extrusion test device and the platform compensator 9 and the compensator pedal 10.

[0053] To ensure the soft contact coverage area and protect the effect, such as Figure 1 , Figure 2 and Figure 3As shown, the protective rubber includes a four-piece split structure, specifically including a first protective rubber 5, a second protective rubber 6, a third protective rubber 7 and a fourth protective rubber 8 respectively installed on the hand-held part 1, the inner side of the movable part 3, the outer side of the movable part 3 and the first bending part. Through the four-piece split protective rubber, while ensuring the flipping function of the movable part 3 and the hand-held part 1, soft contact of the contact surfaces of the tested platform compensator 9 and the platform compensator pedal 10 is achieved to protect the surface coating of the tested workpiece. In this embodiment, the protective rubber is made of rubber.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An anti-extrusion testing device, characterized in that: It comprises a handheld part (1) and a movable part (3), wherein: One end of the handheld portion (1) is provided with a U-shaped portion, and the other end is provided with a first bent portion, wherein the first bent portion is perpendicular to the handheld portion (1); The movable portion (3) is rotatably connected to the first bent portion, and a second bent portion is provided at one end of the movable portion (3) away from the first bent portion, wherein the second bent portion is perpendicular to the movable portion (3); The included angle between the movable portion (3) and the first bent portion is 90° or 180°. When the included angle is 90°, the second bent portion is in contact with the handheld portion (1), and the second bent portion is parallel to the first bent portion.

2. The anti-extrusion testing device according to claim 1, characterized in that: It also comprises a hinge (2), wherein the first bent portion is connected to the hand-held portion (1) via the hinge (2), and the hinge (2) is fixed to the hand-held portion (1) and the first bent portion via a countersunk bolt (4).

3. The anti-extrusion testing device according to claim 1, characterized in that: It also comprises a hand-held handle, which is mounted on the bottom of the hand-held part (1).

4. A platform compensator for plug sliding door of EMU, characterized in that: It comprises a platform compensator (9), a compensator pedal (10) and the anti-extrusion test device according to any one of claims 1 to 3, wherein: The compensator pedal (10) is movably mounted on one side of the platform compensator (9) and is capable of extending and retracting relative to the platform compensator (9); The bottom side of the platform compensator (9) is provided with an inwardly concave flap handle, the flap handle being adapted to the U-shaped portion of the anti-extrusion test device; When the compensator pedal (10) is in an extended state, the angle between the first bent portion and the movable portion (3) is 180°, and the inner side surfaces of the first bent portion and the movable portion (3) are in contact with the outer side surface of the compensator pedal (10); When the compensator pedal (10) is in a retracted state, the angle between the first bent portion and the movable portion (3) is 90°, and the outer side surface of the first bent portion is in contact with the inner side surface of the compensator pedal (10).

5. The EMU plug door platform compensator according to claim 4 is characterized in that: The anti-squeezing test device also includes a protective rubber, which is installed on the contact surface between the anti-squeezing test device and the platform compensator (9) and the compensator pedal (10).

6. The EMU plug door platform compensator according to claim 5, characterized in that: The protective rubber comprises a four-piece split structure.

7. The EMU plug door platform compensator according to claim 6, characterized in that: The protective rubber comprises a first protective rubber (5), a second protective rubber (6), a third protective rubber (7) and a fourth protective rubber (8) which are respectively mounted on the handheld portion (1), the inner side of the movable portion (3), the outer side of the movable portion (3) and the first bending portion.

8. The EMU plug door platform compensator according to claim 5, characterized in that: The protective rubber comprises rubber.

Images