Planing type vehicle end anti-climbing buffer

Abstract

The planing type vehicle end anti-creeping buffer comprises an installation plate fixedly installed at the front end of a vehicle through a fixing bolt, a connecting box is fixedly installed on the outer surface of the front side of the installation plate, the rear end of a supporting column is inserted into the connecting box, and an abutting plate of a square structure is arranged at the front end of the supporting column. Anti-creeping teeth of a wedge-shaped structure are fixedly arranged on the outer surface of the abutting plate; an energy absorption frame is fixedly installed in the connecting box, a friction block is installed on the inner side of the connecting box, and the lower surface of the friction block is of an arc-shaped structure attached to the supporting column. According to the planing type vehicle end anti-creeping buffer, when a vehicle is collided, the anti-creeping teeth at the front end are matched with a corresponding structure of another vehicle, planing friction is achieved, power is consumed, the buffering purpose is achieved, the vehicle is prevented from climbing and stacking, and the service life of the vehicle is prolonged. In the process, a butt joint block on the rear side of the abutting plate and a butt joint groove formed in the front end of the supporting column slide correspondingly, and buffering is conducted again through a second spring in the butt joint groove.

Description

Technical Field

[0001] This utility model relates to the field of anti-climb buffer technology, specifically a planed type vehicle end anti-climb buffer. Background Technology

[0002] Anti-climb buffers are key safety devices for railway vehicles (such as trains and subways). In longitudinal collisions, through special structural designs (such as hooks, serrated or wedge-shaped contact surfaces), they prevent the end of one vehicle from climbing onto the body of another vehicle, avoiding vertical stacking of vehicles and reducing the risk of derailment. The "planing type" refers to a special mechanism that dissipates energy through frictional cutting or material deformation during the collision.

[0003] In the prior art, Chinese Patent Application No. CN201920262043.5 discloses a planing type vehicle end anti-climb buffer, including an anti-climb base, an anti-climb shaft at one end of the anti-climb base, a buffer blade at the end of the anti-climb shaft near the anti-climb base, and the anti-climb shaft connected to the anti-climb base through the buffer blade. An anti-climb baffle is provided at the end of the anti-climb base away from the anti-climb shaft, and the anti-climb shaft is connected to the anti-climb baffle through the anti-climb base. An anti-climb tooth is fixedly connected to the end of the anti-climb shaft away from the anti-climb base.

[0004] Based on the above information, it can be seen that existing anti-climb buffers are generally installed at the front of the vehicle to absorb energy and cushion the impact. However, in practice, the cushioning methods in existing technologies are relatively simple, namely, simple friction, deformation, or springs, and the overall energy absorption effect is limited. Utility Model Content

[0005] The purpose of this invention is to provide a planed type vehicle end anti-climb buffer to solve the problem of limited energy absorption and buffering effect mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a planing-type vehicle end anti-climb buffer, comprising a mounting plate fixedly installed to the front end of a vehicle using fixing bolts, a connecting box fixedly installed on the front outer surface of the mounting plate, a support column inserted into the connecting box at its rear end, a square-structured abutment plate at the front end of the support column, and wedge-shaped anti-climb teeth fixedly installed on the outer surface of the abutment plate; an energy-absorbing frame fixedly installed inside the connecting box, and a friction block installed on the inner side of the connecting box, wherein the lower surface of the friction block has an arc-shaped structure that fits against the support column, a pressure-applying mechanism is provided between the friction block and the connecting box; and a preliminary buffering mechanism is provided between the support column and the abutment plate.

[0007] Preferably, the preliminary buffer mechanism includes a docking block fixedly installed on the rear surface of the contact plate and a docking groove opened at the front end of the support column, both of which are configured as square structures.

[0008] Preferably, the docking block and the docking groove are configured with an insert-type sliding structure, and a second spring connected to the docking block is fixedly installed inside the docking groove.

[0009] Preferably, the pressurizing mechanism includes a receiving groove formed in the inner wall of the connecting box, a first spring for pushing the friction block is fixedly installed inside the receiving groove, and the square structure at the upper end of the friction block and the receiving groove form a fitted and sealed sliding structure.

[0010] Preferably, the inner surface of the friction block is in contact with the friction layer sprayed on the outer surface of the rear end of the support column (the friction layer is hot-pressed sintered metal powder), and a sealing gasket is fixedly installed at the rear end of the support column.

[0011] Preferably, a connecting groove is provided inside the connecting box, and the receiving groove communicates with the internal cavity of the connecting box through the connecting groove.

[0012] Preferably, an energy-absorbing frame is fixedly installed inside the connecting box, and the left end of the energy-absorbing frame is fixedly connected to the support column. The energy-absorbing frame includes two parts: an installation ring and a connecting rod, and the connecting rod is configured as a bent structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This planing-type vehicle end anti-climb buffer adopts a novel structural design, the specific details of which are as follows:

[0014] 1. When a vehicle is involved in a collision, the anti-climb teeth at the front end cooperate with the corresponding structure of the other vehicle to achieve planing friction, thereby consuming power and achieving the purpose of buffering, and preventing the vehicles from climbing and stacking. During this process, the docking block on the back side of the contact plate slides in accordance with the docking groove opened at the front end of the support column, and the second spring inside the docking groove is used for further buffering.

[0015] Furthermore, when impacted, the support column slides relative to the connecting box. At this time, the friction between the friction block inside the connecting box and the friction layer on the outer surface of the rear end of the support column is used to achieve the purpose of buffering and achieve a better energy absorption effect.

[0016] 2. When the support column slides, it squeezes the energy-absorbing frame, and the deformation of the connecting column in the middle of the energy-absorbing frame is used to achieve the energy absorption effect.

[0017] Furthermore, when the support column slides, the sealing gasket at its rear end compresses the air inside the connecting box. At this time, the air enters the receiving groove through the connecting groove, and under the action of air pressure, it pushes the friction block, increasing the squeezing force between the friction block and the support column and thus increasing the friction. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the connector box of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the energy-absorbing frame structure of this utility model;

[0022] Figure 5 This is a schematic diagram showing the positional relationship between the docking groove and the docking block of this utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of the docking groove of this utility model.

[0024] In the diagram: 1. Mounting plate; 2. Fixing bolt; 3. Connecting box; 4. Support column; 401. Friction layer; 402. Sealing gasket; 5. Contact plate; 6. Anti-climbing teeth; 7. Energy-absorbing frame; 701. Mounting ring; 702. Connecting rod; 8. Friction block; 9. Receiving groove; 10. First spring; 11. Connecting groove; 12. Connecting block; 13. Connecting groove; 14. Second spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figure 1 and Figures 5-6 In order to achieve multiple energy absorption, this embodiment provides the following technical solution, specifically: a mounting plate 1 is fixedly installed to the front of the vehicle using fixing bolts 2, a connecting box 3 is fixedly installed on the outer surface of the front side of the mounting plate 1, the rear end of the support column 4 is inserted into the connecting box 3, a square-structured abutment plate 5 is provided at the front end of the support column 4, and a wedge-shaped anti-climbing tooth 6 is fixedly provided on the outer surface of the abutment plate 5; a preliminary buffer mechanism is provided between the support column 4 and the abutment plate 5, the preliminary buffer mechanism includes a docking block 12 fixedly installed on the rear surface of the abutment plate 5 and a docking groove 13 opened at the front end of the support column 4, both the docking block 12 and the docking groove 13 are square-structured, the docking block 12 and the docking groove 13 are set as an insertion sliding structure, and a second spring 14 connected to the docking block 12 is fixedly installed inside the docking groove 13.

[0027] The mounting plate 1 is fixedly installed on the front side of the vehicle (such as a subway or train) using the fixing bolt 2. When two vehicles collide, the two corresponding abutment plates 5 come into contact with each other. At this time, the anti-climb teeth 6 on the outside of the abutment plate 5 cooperate with each other, and the inclined surfaces of the anti-climb teeth 6 come into contact with each other to achieve planing friction, thereby achieving the purpose of energy absorption and buffering. At the same time, it restricts the vehicles from climbing upward and stacking and derailing. When the abutment plate 5 is squeezed, it drives the docking block 12 on its rear surface to slide in the docking groove 13 opened in the support column 4. While sliding, it squeezes the second spring 14 inside the docking groove 13, and the second spring 14 is used to achieve the purpose of energy absorption again.

[0028] Example 2: Please refer to Figures 2-4 This embodiment provides the following technical solution, specifically disclosing that: the inner surface of the friction block 8 is in contact with the friction layer 401 sprayed on the outer surface of the rear end of the support column 4, and the rear end of the support column 4 is fixedly installed with a sealing gasket 402. The energy-absorbing frame 7 is fixedly installed inside the connecting box 3. The left end of the energy-absorbing frame 7 is fixedly connected to the support column 4, and the energy-absorbing frame 7 includes two parts: an installation ring 701 and a connecting rod 702. The connecting rod 702 is configured as a bent structure.

[0029] When the vehicle is impacted, the support column 4 is also subjected to force. At this time, the rear end of the support column 4 slides inside the connecting box 3. Simultaneously, the friction layer 401 (friction layer 401 is hot-pressed sintered metal powder) on the outer surface of the rear end of the support column 4 comes into contact with the friction block 8 inside the connecting box 3 and rubs against each other. The friction force is used to achieve the purpose of energy absorption and buffering again. When the support column 4 slides, it squeezes the energy-absorbing frame 7 inside the connecting box 3. At this time, the connecting rod 702 in the energy-absorbing frame 7 is deformed by force and absorbs energy.

[0030] Example 3: Please refer to Figure 2 and Figure 3 In order to provide the following technical solution, this embodiment discloses that: an energy-absorbing frame 7 is fixedly installed inside the connecting box 3, and a friction block 8 is installed inside the connecting box 3. The lower surface of the friction block 8 has an arc-shaped structure that fits with the support column 4. A pressure mechanism is provided between the friction block 8 and the connecting box 3. The pressure mechanism includes a receiving groove 9 opened in the inner wall of the connecting box 3. A first spring 10 that pushes the friction block 8 is fixedly installed inside the receiving groove 9. The square structure at the upper end of the friction block 8 and the receiving groove 9 form a fitted and sealed sliding structure. A connecting groove 11 is opened inside the connecting box 3, and the receiving groove 9 communicates with the internal cavity of the connecting box 3 through the connecting groove 11.

[0031] When the support column 4 slides inside the connecting box 3, the sealing gasket 402 compresses the internal air. When the air is compressed, it enters the receiving groove 9 through the connecting groove 11. At this time, the air pressure inside the receiving groove 9 increases. Under the pushing action of the air pressure, the squeezing force between the friction block 8 and the friction layer 401 is increased, thereby achieving the purpose of increasing the friction.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A planing type anti-crawling bumper for the front end of a vehicle, comprising a mounting plate (1) fixedly mounted to the front end of the vehicle by means of fixing bolts (2), a connecting box (3) fixedly mounted to the front side outer surface of the mounting plate (1), characterized in that, Also includes: The rear end of the support column (4) is inserted into the connection box (3). The front end of the support column (4) is provided with a square-shaped abutment plate (5), and the outer surface of the abutment plate (5) is fixedly provided with a wedge-shaped anti-climbing tooth (6). The energy-absorbing frame (7) is fixedly installed inside the connecting box (3), and a friction block (8) is installed inside the connecting box (3). The lower surface of the friction block (8) is an arc-shaped structure that fits against the support column (4). A pressure mechanism is provided between the friction block (8) and the connecting box (3). A preliminary buffer mechanism is provided between the support column (4) and the contact plate (5).

2. The planing-type vehicle end anti-climb buffer according to claim 1, characterized in that: The preliminary buffer mechanism includes a docking block (12) fixedly installed on the rear surface of the contact plate (5) and a docking groove (13) opened at the front end of the support column (4). Both the docking block (12) and the docking groove (13) are set as square structures.

3. A planing-type anti-climb buffer for vehicle ends according to claim 2, characterized in that: The docking block (12) and the docking groove (13) are configured as an insertion sliding structure, and a second spring (14) connected to the docking block (12) is fixedly installed inside the docking groove (13).

4. A planing-type anti-climb buffer for vehicle ends according to claim 1, characterized in that: The pressurizing mechanism includes a receiving groove (9) opened on the inner wall of the connecting box (3), a first spring (10) for pushing the friction block (8) is fixedly installed inside the receiving groove (9), and the square structure at the upper end of the friction block (8) and the receiving groove (9) form a fitted and sealed sliding structure.

5. A planing-type anti-climb buffer for vehicle ends according to claim 4, characterized in that: The inner surface of the friction block (8) is in contact with the friction layer (401) sprayed on the outer surface of the rear end of the support column (4), and the rear end of the support column (4) is fixedly installed with a sealing gasket (402).

6. A planing-type anti-climb buffer for vehicle ends according to claim 5, characterized in that: The connecting box (3) has a connecting groove (11) inside, and the receiving groove (9) is connected to the cavity inside the connecting box (3) through the connecting groove (11).

7. A planing-type anti-climb buffer for vehicle ends according to claim 6, characterized in that: The energy-absorbing frame (7) is fixedly installed inside the connecting box (3). The left end of the energy-absorbing frame (7) is fixedly connected to the support column (4). The energy-absorbing frame (7) includes two parts: an installation ring (701) and a connecting rod (702). The connecting rod (702) is configured as a bent structure.

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