A wheel chock

Abstract

The utility model discloses a wheel type car stopper, each connecting device all is connected with the steel chain, the other end of steel chain is connected with the connecting piece, and the bottom of connecting piece is in contact with the outside circumference of steel wheel, and the inside circumference of steel wheel is equipped with the friction pad, and the friction pad is connected with the connecting piece through the U -shaped fixed link, and the fixed shell is set up with the sliding slot along the length direction, and the left and right sides of sliding slot are equipped with the sliding block respectively, and the two sliding blocks are equipped with the two -way screw rod, and the sliding block is set up with the internal thread through -hole, and the two sliding blocks are connected through the two -way screw rod, and the one end of fixed shell is set up with the mounting groove away from the frame, and the mounting groove is equipped with the connecting block, and the left and right sides of the one end away from the steel chain connection of connecting block are set up with the step groove respectively, and the step groove and the convex setting on the sliding block are mutually embedded, and the device moves with the car, realizes the tool always in hand, does not need the worker additional handling, and the worker can quick operation when needing the car, greatly promotes the work efficiency and emergency response speed, realizes the car on the spot.

Description

Technical Field

[0001] This utility model relates to the field of transportation equipment technology, specifically a wheel-type vehicle stopper. Background Technology

[0002] In our mine, underground materials are transported by mine cars. When the mine cars are transported to the required parking location, in order to prevent runaway or slippage accidents, it is necessary to stop the individual mine cars or a train of mine cars. The previous method of stopping the cars was to use wooden wedges or stones to support the tracks. These methods do not comply with safety operating procedures and are unreliable, and there are still safety risks of runaway or slippage. The triangular car stoppers currently being promoted are inconvenient to carry during use. Utility Model Content

[0003] The purpose of this utility model is to provide a wheel-type wheel stopper to solve the problem that using wooden wedges or stones to support the track does not comply with safe operating procedures and is unreliable, and still poses safety risks of runaway or slippage. The currently promoted triangular wheel stopper is also inconvenient to carry during use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wheel-type vehicle stopper, comprising a connecting device, a steel chain, a connecting plate, and a friction plate. The connecting devices are symmetrically arranged on the front and rear sides of the frame, located between the two steel wheels. Each connecting device is connected to a steel chain, and the other end of the steel chain is connected to a connecting plate. The bottom end of the connecting plate abuts against the outer circumference of the steel wheel. Friction plates are provided on the inner circumference of the steel wheel, and the friction plates are connected to the connecting plates through U-shaped fixing rods. The connecting device includes a fixed shell, a bidirectional threaded rod, a slider, and a connecting block. The fixed shell has a groove along its length, and sliders are respectively located at the left and right ends of the groove, slidingly engaging with the fixed shell. Each slider has a bidirectional threaded rod with an internally threaded through hole. The two sliders are connected by the bidirectional threaded rod, and the direction of the threaded holes in the two sliders matches the corresponding threaded segments on the bidirectional threaded rod. The fixed shell has an installation groove at the end away from the frame, and a connecting block is provided in the installation groove. Stepped grooves are provided on the left and right sides of the end of the connecting block away from the connection with the steel chain. The stepped grooves and the protrusions on the slider are interlocked.

[0005] Preferably, the connecting piece is arc-shaped, and its arc corresponds to the outer circumference of the steel wheel.

[0006] Preferably, the friction pad is arranged in a convex arc shape, and its arc shape corresponds to the inner circumference of the steel wheel.

[0007] Preferably, the contact ends of the connecting piece, the friction piece, and the steel wheel are respectively provided with friction plates to enhance the friction with the steel wheel.

[0008] Preferably, adjusting bolts are provided on the left and right sides of the connecting plate to make the friction plate fit tightly against the inner wall of the steel wheel.

[0009] Preferably, the length of the steel chain corresponds to the distance between the connecting device and the steel wheel.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The device moves with the vehicle, ensuring that the tool is always within reach and eliminating the need for workers to carry it. When it is necessary to stop the vehicle, workers can quickly operate the adjustment mechanism next to the vehicle, which greatly improves work efficiency and emergency response speed, enabling on-site vehicle blocking. At the same time, it avoids the situation where excessive force is used when using traditional obstacles, which can damage the wheel flanges or tracks. The anti-slip and anti-runaway effect is safer and more reliable. In addition, the overall structure is easy to disassemble and install. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the connecting device structure of this utility model.

[0013] In the diagram: 1. Connecting device; 101. Fixed shell; 102. Bidirectional threaded rod; 103. Slider; 104. Connecting block; 2. Steel chain; 3. Connecting plate; 4. U-shaped fixing rod; 5. Friction plate; 6. Steel wheel. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] 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.

[0018] Example 1: Please refer to Figure 1-2 One embodiment of this utility model is a wheel-type vehicle stopper, comprising a connecting device 1, a steel chain 2, a connecting piece 3, and a friction piece 5. The connecting devices 1 are symmetrically arranged on the front and rear sides of the frame, between the two steel wheels 6. They convert the operator's rotation of the bidirectional threaded rod 102 into synchronous, opposite, or back-to-back linear motion of the two sliders 103, thus providing the power for clamping and releasing. This allows the connecting block 104 to be connected to the frame, thereby connecting the steel chain 2 to the frame as a whole. Each connecting device 1 is connected to a steel chain 2. The flexibility of the chain links can adapt to the slight positional changes and vibrations generated between the frame and the wheels when the vehicle is stopped. It is more forgiving than a rigid connecting rod, and the steel chain 2 is easier to install and adjust in length compared to a rigid structure. The other end of the steel chain 2 is connected to a connecting plate 3. Adjusting bolts are provided on the left and right sides of the connecting plate 3 to make the friction plate 5 fit tightly against the inner wall of the steel wheel 6. The connecting plate 3 is arc-shaped, and its arc corresponds to the outer circumference of the steel wheel 6. It is connected to the friction plate 5 through a U-shaped fixing rod 4 to form a fixing arm similar to a clamp. When connected... When the distance between the connecting plate 3 and the friction plate 5 corresponds to the thickness of the steel wheel 6, the inner and outer walls of the connecting plate 3, friction plate 5, and steel wheel 6 are tightly fitted. If this is not the case, rotate the adjusting bolt to ensure the friction plate 5 is tightly fitted to the inner wall of the steel wheel 6, preventing it from falling off. The bottom end of the connecting plate 3 abuts against the outer circumference of the steel wheel 6. Friction plates 5 are provided on the inner circumference of the steel wheel 6, and are convex arc-shaped, their arc corresponding to the inner circumference of the steel wheel 6. They directly contact the inner side of the steel wheel 6, generating significant friction to prevent wheel rotation and thus stopping the vehicle. The arc shape perfectly fits the inner circumference of the wheel, maximizing the contact area and generating the maximum possible friction. The friction plate 5 is connected to the connecting plate 3 via a U-shaped fixing rod 4, spanning the steel wheel 6, rigidly connecting the outer connecting plate 3 and the inner friction plate 5 into a single unit. Friction plates are provided at the contact ends of the connecting plate 3, friction plate 5, and steel wheel 6 to enhance friction with the steel wheel 6. The connecting device 1 includes a fixed shell 101, a bidirectional threaded rod 102, a slider 103, and a connecting block 104. The fixed shell 101 has a groove along its length, and sliders 103 are respectively located at the left and right ends of the groove. These sliders convert the rotational motion of the bidirectional threaded rod 102 into its own linear motion and clamp the connecting block 104 through protrusions at their ends, slidingly engaging with the fixed shell 101. The two sliders 103 are provided with bidirectional threaded rods 102. The forward and reverse thread design ensures that rotating one screw drives both sliders 103 to move simultaneously towards the center or to the sides, achieving synchronization. Each slider 103 has an internally threaded through hole. The two sliders 103 are connected by the bidirectional threaded rod 102, and the direction of the threaded holes of the two sliders 103 matches the corresponding threaded segments on the bidirectional threaded rod 102. The fixed housing 101 has a mounting groove at the end away from the frame, and a connecting block 104 is provided in the mounting groove. The connecting block 104 has stepped grooves on the left and right sides at the end away from the connection with the steel chain 2. The stepped grooves and the protrusions on the slider 103 are interlocked. The connecting block 104 is clamped and fixed by the slider 103 sliding closer to each other. When disassembling, the bidirectional threaded rod 102 is rotated and the slider 103 moves in the opposite direction. At this time, the connecting block 104 is unlocked and can be disassembled. The length of the steel chain 2 corresponds to the distance between the connecting device 1 and the steel wheel 6.

[0019] During installation, first rotate the double-threaded rod 102 counterclockwise. The rotating thread drives the two sliders 103 to move synchronously away from the center within the fixed housing 101. Then, insert the connecting block 104. Next, rotate the double-threaded rod 102 clockwise. The rotating thread drives the two sliders 103 to move synchronously towards the center within the fixed housing 101. Then, the protrusions on the sliders 103 engage with the stepped grooves on the connecting block 104. When stopping the car, if the distance between the connecting piece 3 and the friction piece 5 corresponds to the thickness of the steel wheel 6, the inner and outer walls of the connecting piece 3, the friction piece 5, and the steel wheel 6 are tightly fitted. If this is not met, rotate the adjusting bolt to make the friction piece 5 tightly fit against the inner wall of the steel wheel 6 to prevent it from falling off, thus preventing the mine car wheels from rotating and achieving the purpose of stopping the car.

[0020] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wheel-type wheel stopper, characterized in that: Includes a connecting device (1), a steel chain (2), a connecting plate (3), and a friction plate (5). The connecting devices (1) are symmetrically arranged on the front and rear sides of the frame, between the two steel wheels (6). Each connecting device (1) is connected to a steel chain (2), and the other end of the steel chain (2) is connected to a connecting piece (3). The bottom end of the connecting piece (3) abuts against the outer circumference of the steel wheel (6). A friction plate (5) is provided on the inner circumference of the steel wheel (6). The friction plate (5) is connected to the connecting piece (3) through a U-shaped fixing rod (4). The connecting device (1) includes a fixed shell (101), a bidirectional threaded rod (102), a slider (103), and a connecting block (104). The fixed shell (101) has a groove along its length. Sliders (103) are provided on the left and right ends of the groove and are slidably fitted to the fixed shell (101). The two sliders (103) are provided with bidirectional threaded rods (102). The sliders (103) have internal threaded through holes. The two sliders (103) are connected by the bidirectional threaded rods (102). The rotation direction of the threaded holes of the two sliders (103) matches the corresponding threaded segments on the bidirectional threaded rods (102). The fixed shell (101) has an installation groove at the end away from the frame. A connecting block (104) is provided in the installation groove. Stepped grooves are provided on the left and right sides of the end of the connecting block (104) away from the connection with the steel chain (2). The stepped grooves and the protrusions on the slider (103) are interlocked.

2. The wheel-type wheel stopper according to claim 1, characterized in that: The connecting piece (3) is arc-shaped, and its arc shape corresponds to the outer circumference of the steel wheel (6).

3. The wheel-type wheel stopper according to claim 1, characterized in that: The friction plate (5) is arranged in a convex arc shape, and its arc shape corresponds to the inner circumference of the steel wheel (6).

4. The wheel-type wheel stopper according to claim 1, characterized in that: The contact ends of the connecting piece (3), friction piece (5) and steel wheel (6) are respectively provided with friction plates to enhance the friction with the steel wheel (6).

5. The wheel-type wheel stopper according to claim 1, characterized in that: Adjusting bolts are provided on the left and right sides of the connecting plate (3) to make the friction plate (5) fit tightly against the inner wall of the steel wheel (6).

6. The wheel-type wheel stopper according to claim 1, characterized in that: The length of the steel chain (2) corresponds to the distance between the connecting device (1) and the steel wheel (6).

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