Wheel blocking device to prevent train from slipping

Abstract

This invention discloses a wheel-stopping device to prevent train runaway, comprising a base, a blocking component, and a driving component. The blocking component includes a mounting portion and a swinging portion. The mounting portion is rotatably connected to the base about a first axis, and the swinging portion is rotatably connected to the mounting portion about a second axis parallel to the first axis. The swinging portion has a contact portion for abutting against the wheel. The driving component is disposed between the swinging portion and the base to drive the swinging portion to rotate relative to the mounting portion. After rotating by a preset angle, the swinging portion can drive the mounting portion to rotate relative to the base. The wheel-stopping device of this invention significantly reduces the resistance experienced by the blocking component when it needs to be separated from the wheel, making rotation easier. The driving component requires less driving force, is less prone to damage, and has a longer service life.

Description

Technical Field

[0001] This invention relates to the field of train blocking equipment technology, and in particular to a wheel blocking device to prevent trains from slipping. Background Technology

[0002] After a tram stops, to prevent the train carriages from slipping due to inertia and track tilt, a vehicle stop is installed near the track. In related technologies, the vehicle stop includes a base, a blocking component, and a driving component. The blocking component is rotatably connected to the base, and the driving component is located between the blocking component and the base. When anti-slippage is required after parking, the driving component drives the blocking component to rotate, so that the top of the blocking component abuts against the front side of the wheel above the track. When not in use, the blocking component rotates until it is entirely outside the track and separates from the wheel.

[0003] When not in operation, to ensure the entire blocking component is positioned outside the track, the connection point between the blocking component and the base must also be outside the track. Therefore, when the blocking component rotates to its top position above the track to abut against the wheel, the entire component is tilted. Furthermore, due to the large size of the wheel, the blocking component abuts against the lower front side of the wheel. Thus, when it is necessary to separate the blocking component from the wheel, it must first flip upwards at a certain angle and then downwards. When flipping upwards, the blocking component must overcome not only the friction with the wheel but also the downward pressure exerted by the train's weight, making flipping difficult, requiring a large driving force, and easily damaging the wheel stopper. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a wheel blocking device to prevent train runaway. When it needs to be separated from the wheel, it can significantly reduce the resistance of the blocking component, make it easier to flip, require less driving force for the driving component, is less prone to damage, and has a longer service life.

[0005] According to an embodiment of the present invention, a wheel-stopping device for preventing train runaway includes a base, a blocking member, and a driving member. The blocking member includes a mounting portion and a swing portion. The mounting portion is rotatably connected to the base about a first axis, and the swing portion is rotatably connected to the mounting portion about a second axis parallel to the first axis. The swing portion has a contact portion for abutting against a wheel. The driving member is disposed between the swing portion and the base to drive the swing portion to rotate relative to the mounting portion. After rotating the swing portion by a preset angle, it can drive the mounting portion to rotate relative to the base. Specifically, when the swing portion is flipped upward so that the contact portion is directly above the second axis and the mounting portion is rotated so that the contact portion is on one side of the vertical plane containing the first axis, the blocking member is in a first state in which the contact portion can abut against the wheel. When the swing portion is flipped downward by the preset angle and the mounting portion is rotated, the blocking member is in a second state in which the contact portion is separated from the wheel.

[0006] The wheel blocking device for preventing train runaway according to embodiments of the present invention has at least the following beneficial effects:

[0007] The base can be installed near the track. When anti-slipping is required after parking, the drive unit is activated. The drive unit drives the swing part to flip upward. After the swing part flips to a preset angle, it drives the mounting part to flip. When it flips to the point where the abutment part is directly above the second axis of the swing part and on the side of the vertical plane of the first axis of the mounting part that is close to the track, the abutment part can be positioned above the track, thus abutting against the front side of the wheel to prevent slippage. When the train needs to move, the drive unit drives the swing part to flip downward to a preset angle, and the swing part can be separated from the wheel. Then the swing part drives the mounting part to rotate so that the entire blocking part is on the outside of the track. Compared to the integral structure of the blocking component in the prior art, the wheel blocking device for preventing train slippage of the present invention includes a mounting part and a swinging part that are rotatably connected. The abutment part is located on the swinging part. By rotating the mounting part and the swinging part, the abutment part can be positioned above the track to facilitate abutting the wheel. Moreover, when the abutment part abuts the wheel, it is located directly above the second axis of the swinging part. Therefore, when the train needs to move, the swinging part can be flipped downwards at a preset angle to separate the abutment part from the wheel. Since the swinging part is flipped downwards, the blocking component does not need to overcome the downward pressure exerted by the weight of the train. The resistance experienced by the blocking component is greatly reduced, the flipping is more convenient, the driving force required by the driving component is smaller, the wheel blocking device is less prone to damage, and the service life is longer.

[0008] According to some embodiments of the present invention, an abutment surface is formed at the end of the mounting part away from the base, and the swing part abuts against the abutment surface after rotating the preset angle, thereby driving the mounting part to rotate.

[0009] According to some embodiments of the present invention, the driving member includes a linkage mechanism and a telescopic member. The two ends of the linkage mechanism are rotatably connected to the swing portion and the base, respectively, and the two ends of the telescopic member are rotatably connected to the linkage mechanism and the base, respectively. When the telescopic member extends or retracts, it can drive the swing portion to rotate through the linkage mechanism.

[0010] According to some embodiments of the present invention, when the blocking member is in the first state, the linkage mechanism is in the dead position.

[0011] According to some embodiments of the present invention, the linkage mechanism includes a first link and a second link, with one end of the first link and the second link rotatably connected, the other end of the first link rotatably connected to the swinging part, the other end of the second link rotatably connected to the base, and the telescopic member rotatably connected to the second link. When the blocking member is in the first state, the first link and the second link form a 180° angle and are in the dead point position.

[0012] According to some embodiments of the present invention, the second link is provided with a limiting portion. When the blocking member is in the second state, the bottom surface of the first link abuts against the top surface of the limiting portion, and the end of the second link near the base is lower than the end of the second link near the first link.

[0013] According to some embodiments of the present invention, the second connecting rod is provided with a first connecting shaft, one end of the telescopic member is rotatably sleeved on the first connecting shaft, and one end of the first connecting shaft forms the limiting part.

[0014] According to some embodiments of the present invention, the abutting part is slidably mounted on the swinging part, the sliding direction of the abutting part is parallel to the first axis, and an elastic buffer part is provided between the abutting part and the swinging part.

[0015] According to some embodiments of the present invention, the length direction of the abutting part is parallel to the first axis, one end of the abutting part is provided with an abutting head, the swinging part is provided with an installation cavity, the elastic buffer part is configured as a helical spring, the helical spring is installed in the installation cavity and sleeved on the outside of the abutting part, the abutting part is provided with a push block, and the push block abuts against the end of the helical spring near the abutting head.

[0016] According to some embodiments of the present invention, the surface of the abutment on the side opposite to the abutment portion is configured as an outwardly convex spherical surface.

[0017] According to some embodiments of the present invention, the top surface of the base is used to support the track, and the top surface of the base is provided with a plurality of track pressing blocks, which are used to limit the movement of the track.

[0018] According to some embodiments of the present invention, the base is provided with a detection probe, which is used to detect whether the blocking member is in the first state.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and some advantages will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram showing the blocking member in a first state when the driving member of the present invention is one of the structures;

[0022] Figure 2 This is a schematic diagram showing the blocking member in a second state when the driving member of the present invention is one of the structures;

[0023] Figure 3 for Figure 1 One of the perspective views;

[0024] Figure 4 for Figure 1 A sectional view;

[0025] Figure 5 This is a schematic diagram showing the blocking member in a first state when the driving member of the present invention has a different structure;

[0026] Figure 6 This is a schematic diagram showing the blocking member in a second state when the driving member of the present invention has a different structure;

[0027] Figure 7 for Figure 5 One of the perspective views;

[0028] Figure 8 for Figure 5 Another perspective view;

[0029] Figure 9 for Figure 5 A sectional view;

[0030] Figure 10 A schematic diagram showing the contact part contacting the wheel;

[0031] Figure 11 for Figure 10 Another perspective view.

[0032] Icon labels:

[0033] Base 100; First axis 101; First mounting axis 102; Track clamping block 103;

[0034] 200; 201; 202; 203; 204; 205; 206; 207; 208; 209; 210; 211; 212; 212;

[0035] Drive component 300; linkage mechanism 301; telescopic component 302; first link 303; second link 304; limiting part 305; first connecting shaft 306; second connecting shaft 307; third connecting shaft 308;

[0036] Detection probe 400;

[0037] Wheel 500;

[0038] Track 600. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0041] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0042] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0043] The following is for reference. Figures 1 to 11 A wheel-stopping device for preventing train runaway is described according to an embodiment of the present invention.

[0044] refer to Figures 1 to 11 As shown, the wheel blocking device for preventing train runaway according to an embodiment of the present invention includes a base 100, a blocking member 200, and a driving member 300.

[0045] The base 100 can be a plate-like structure or other suitable structure. The base 100 can be installed on the ground near the track 600 by means of anchor bolts, etc. In this way, compared with installing the wheel blocking device on the track 600, the impact force applied by the train can be avoided from damaging the track 600.

[0046] The blocking member 200 includes a mounting portion 201 and a swing portion 202. The mounting portion 201 is rotatably connected to the base 100 about a first axis 101, which can extend along the length of the track 600. For example, the base 100 may be provided with a first mounting shaft 102. One end of the mounting portion 201 is provided with a sleeve hole and is rotatably fitted onto the first mounting shaft 102 through the sleeve hole. The axis of the first mounting shaft 102 forms the first axis 101. The swing portion 202 is rotatably connected to the mounting portion 201 about a second axis 211, which is parallel to the first axis 101. For example, the other end of the mounting portion 201 may be provided with a second mounting shaft 209. The swing portion 202 is provided with a sleeve hole and is rotatably fitted onto the second mounting shaft 209 through the sleeve hole. The axis of the second mounting shaft 209 forms the second axis 211. The swing portion 202 is provided with an abutting portion 203 for abutting against the wheel 500.

[0047] The driving component 300 is disposed between the swing part 202 and the base 100 to drive the swing part 202 to rotate relative to the mounting part 201. After the swing part 202 rotates by a preset angle γ, it can drive the mounting part 201 to rotate relative to the base 100. The value of the preset angle γ is set according to the actual situation.

[0048] Specifically, when the swinging part 202 flips upward so that the abutting part 203 is directly above the second axis 211, and drives the mounting part 201 to rotate so that the abutting part 203 is on one side of the vertical plane where the first axis 101 is located, that is, when the abutting part 203 is on the side directly above the first axis 101, the blocking member 200 is in the first state. In this state, the abutting part 203 can abut against the lower end of the front side of the wheel 500. When the swinging part 202 flips downward at a preset angle and drives the mounting part 201 to rotate, the blocking member 200 is in the second state. In this state, the abutting part 203 is separated from the wheel 500.

[0049] In this embodiment, when anti-rollover is required after parking, the drive unit 300 is activated. The drive unit 300 drives the swing part 202 to flip upward. After the swing part 202 flips to a preset angle, it drives the mounting part 201 to flip. When it flips to the point where the abutment part 203 is directly above the second axis 211 of the swing part 202 and is located on the side of the vertical plane of the first axis 101 of the mounting part 201 near the track 600, the abutment part 203 can be located above the track 600, thereby abutting the lower end of the front side of the wheel 500 to prevent rollover. When the train needs to move, the drive unit 300 drives the swing part 202 to flip downward to a preset angle, and the swing part 202 can be separated from the wheel 500. Then the swing part 202 drives the mounting part 201 to rotate so that the blocking part 200 is located outside the track 600.

[0050] Compared to the existing technology where the blocking member 200 is an integral structure, the blocking member 200 of the wheel blocking device for preventing train slippage of the present invention includes a mounting part 201 and a swinging part 202 that are rotatably connected. The abutment part 203 is provided on the swinging part 202. By rotating the mounting part 201 and the swinging part 202, the abutment part 203 can be positioned above the track 600 to facilitate abutting the lower end of the front side of the wheel 500. Moreover, when the abutment part 203 abuts the wheel 500, it is located directly above the second axis 211 of the swinging part 202. Therefore, when the train needs to move, the swinging part 202 can be flipped downwards at a preset angle to separate the abutment part 203 from the wheel 500. Since the swinging part 202 is flipped downwards, the blocking member 200 does not need to overcome the downward pressure exerted by the weight of the train. The resistance experienced by the blocking member 200 is greatly reduced, the flipping is more convenient, the driving force required by the driving member 300 is smaller, the wheel blocking device is less prone to damage, and the service life is longer.

[0051] refer to Figure 5 As shown, in some embodiments of the present invention, the end of the mounting part 201 away from the base 100 has an abutment surface 204. After the swing part 202 rotates by a preset angle, it abuts against the abutment surface 204 to drive the mounting part 201 to rotate. For example, the abutment surface 204 may be provided with a mounting groove, and the swing part 202 is provided with a connecting part near the mounting part 201. The connecting part is located in the mounting groove and is rotatably connected to the mounting part 201 through a rotating shaft. In this embodiment, the mounting part 201 is provided on the abutment surface 204, so that the swing part 202 can abut against the abutment surface 204 after rotating by a preset angle in different directions, and thus cannot continue to swing relative to the mounting part 201, thereby driving the mounting part 201 to rotate relative to the base 100.

[0052] refer to Figures 1 to 3As shown, in some embodiments of the present invention, the driving component 300 can be configured as a telescopic component 302. The telescopic component 302 can be a cylinder, a hydraulic cylinder, or an electric push rod, etc. The two ends of the telescopic component 302 are rotatably connected to the swing part 202 and the base 100, respectively. The swing part 202 can be driven to rotate by the extension and retraction of the telescopic component 302. The structure is simple and the operation is convenient.

[0053] However, due to factors such as the shape of the wheel 500 and the shape of the abutment portion 203, when the wheel 500 impacts the abutment portion 203, some of the impact force is transmitted to the telescopic member 302, which can easily damage the telescopic member 302. For example, in the prior art, the outer peripheral wall of the wheel 500 may not be a standard circumferential surface; for example, it may have an inclined area, and the outer surface of the abutment portion 203 at the position where it abuts the wheel 500 may also be a spherical surface. Thus, when the blocking member 200 abuts the wheel 500 through the abutment portion 203, in addition to the horizontal backward thrust and vertical downward pressure exerted on the blocking member 200, the wheel 500 may also exert an impact force along the axial direction of the wheel 500. This impact force will be transmitted to the telescopic member 302 and damage the telescopic member 302.

[0054] refer to Figures 5 to 8 As shown, in some embodiments of the present invention, the driving member 300 includes a linkage mechanism 301 and a telescopic member 302. The two ends of the linkage mechanism 301 are rotatably connected to the swing part 202 and the base 100, respectively. The two ends of the telescopic member 302 are rotatably connected to the linkage mechanism 301 and the base 100, respectively. The rotation axis between the linkage mechanism 301 and the swing part 202 can be parallel to the first axis 101. The rotation axis between the linkage mechanism 301 and the base 100 can be parallel to the first axis 101. The rotation axis between the telescopic member 302 and the linkage mechanism 301 can be parallel to the first axis 101. The rotation axis between the telescopic member 302 and the base 100 can be parallel to the first axis 101. When the telescopic member 302 extends or retracts, it can drive the swing part 202 to rotate through the linkage mechanism 301.

[0055] When the telescopic component 302 is activated, its extension and retraction drive the linkage mechanism 301, which in turn drives the swinging part 202 of the blocking component 200 to swing. In this embodiment, because the linkage mechanism 301 is provided between the telescopic component 302 and the swinging part 202, and the linkage mechanism 301 is connected to the base 100, the impact force applied by the wheel 500 is transmitted to the base 100 through the linkage mechanism 301. Therefore, the telescopic component 302 experiences very little impact, making it less prone to damage and extending its service life.

[0056] refer to Figure 5 and Figure 8As shown, in some embodiments of the present invention, when the blocking member 200 is in the first state, the linkage mechanism 301 is in a dead position. When the blocking member 200 is in the first state, the linkage mechanism 301 is in a dead position, and therefore, when the blocking member 200 is subjected to the impact force applied by the wheel 500, the blocking member 200 cannot push the linkage mechanism 301 to move in the opposite direction, and the linkage mechanism 301 will not apply the impact force to the telescopic member 302 in the opposite direction. This not only makes the blocking member 200 more effective in preventing the vehicle from slipping, but also further avoids the impact force applied by the blocking member 200 to the linkage mechanism 301 from being transmitted to the telescopic member 302 and damaging the telescopic member 302, thus extending the service life of the telescopic member 302.

[0057] It should be noted that when the linkage mechanism 301 is in the dead position, the blocking member 200 cannot push the linkage mechanism 301 to move in the opposite direction, but the telescopic member 302 can actively drive the linkage mechanism 301 to move by telescoping.

[0058] refer to Figures 5 to 8 As shown, in some embodiments of the present invention, the linkage mechanism 301 includes a first link 303 and a second link 304. The ends of the first link 303 and the second link 304 that are close to each other are rotatably connected. The other end of the first link 303 is rotatably connected to the swing portion 202 of the blocking member 200. The other end of the second link 304 is rotatably connected to the base 100. The telescopic member 302 is rotatably connected to the second link 304. When the blocking member 200 is in the first state, the first link 303 and the second link 304 form a 180° angle and are in the dead position. For example, the second link 304 may be provided with a first connecting shaft 306, one end of the telescopic member 302 may be rotatably sleeved on the first connecting shaft 306, a second connecting shaft 307 may be provided between the ends of the first link 303 and the second link 304 that are close to each other and rotatably connected through the second connecting shaft 307, and a third connecting shaft 308 may be provided at the end of the second link 304 that is close to the base 100 and rotatably connected to the base 100 through the third connecting shaft 308.

[0059] In this embodiment, the extension and retraction of the telescopic member 302 can drive the second link 304 to rotate around the third connecting shaft 308. The second link 304 can then drive the first link 303 to move, and the first link 303 can then drive the swing part 202 of the blocking member 200 to rotate. The structure is simple and easy to operate. Moreover, when the linkage mechanism 301 is in the dead position, the first link 303 and the second link 304 are roughly in a straight line, which can further prevent the blocking member 200 from pushing the linkage mechanism 301 to move in the opposite direction, and can further prevent the linkage mechanism 301 from applying impact force to the telescopic member 302. This not only makes the blocking member 200 more effective at preventing slippage, but also further avoids the impact force applied by the blocking member 200 to the linkage mechanism 301 from being transmitted to the telescopic member 302 and damaging the telescopic member 302, thus extending the service life of the telescopic member 302.

[0060] It should be noted that the linkage mechanism 301 can also be other suitable structures, which will not be elaborated here.

[0061] refer to Figures 5 to 8 As shown, in some embodiments of the present invention, the second link 304 is provided with a limiting part 305. When the blocking member 200 is in the second state, the bottom surface of the first link 303 abuts against the top surface of the limiting part 305, and the end of the second link 304 near the base 100 is lower than the end of the second link 304 near the first link 303. When the telescopic member 302 retracts to make the blocking member 200 in the second state, the bottom surface of the first link 303 abuts against the top surface of the limiting part 305. Through the abutment between the first link 303 and the limiting part 305, the first link 303 and the second link 304 can be made to form a certain angle and not be in a dead point state. Moreover, the first link 303 and the second link 304 can be prevented from continuing to rotate downward, so that the linkage mechanism 301 is kept in a state where the end of the second link 304 near the base 100 is lower than the end of the second link 304 near the first link 303. Furthermore, when the telescopic member 302 extends, the linkage mechanism 301 can move smoothly, and the second linkage 304 rotates upward, thereby smoothly driving the swing part 202 and the mounting part 201 to flip so that the blocking member 200 is in the first state.

[0062] refer to Figure 5 , Figure 6 and Figure 8 As shown, in some embodiments of the present invention, the second connecting rod 304 is provided with a first connecting shaft 306, one end of the telescopic member 302 is rotatably sleeved on the first connecting shaft 306, and one end of the first connecting shaft 306 forms a limiting part 305. In this way, the first connecting shaft 306 can both allow one end of the telescopic member 302 to be rotatably sleeved and its other end can also serve as the limiting part 305, achieving dual functionality in one piece and further simplifying the structure.

[0063] refer to Figures 1 to 10 As shown, in some embodiments of the present invention, the abutment portion 203 is slidably mounted on the swing portion 202, and the sliding direction of the abutment portion 203 is parallel to the first axis 101. An elastic buffer portion 205 is provided between the abutment portion 203 and the swing portion 202. When the abutment portion 203 abuts against the lower end of the front side of the wheel 500, the abutment portion 203 is subjected to the impact force of the wheel 500 and slides backward. The abutment portion 203 then compresses the elastic buffer portion 205, which can then contract to apply an elastic buffering force to the abutment portion 203, thereby reducing the rigid impact force between the wheel 500 and the abutment portion 203 and preventing damage to the wheel 500 and the blocking member 200.

[0064] refer to Figures 1 to 10 As shown, in some embodiments of the present invention, the length direction of the abutment portion 203 is parallel to the first axis 101. One end of the abutment portion 203 is provided with an abutment head 206. The swing portion 202 is provided with a mounting cavity 207. The elastic buffer portion 205 is configured as a helical spring. The helical spring is installed in the mounting cavity 207 and sleeved on the outside of the abutment portion 203. The abutment portion 203 is provided with a push block 208, which abuts against the end of the helical spring near the abutment head 206. For example, one end of the mounting cavity 207 along the length direction of the abutment portion 203 may be open and provided with a sealing portion 210. Both the sealing portion 210 and the swing portion 202 at the end away from the sealing portion 210 are provided with a clearance hole. The abutment portion 203 passes through the clearance hole. The push block 208 is located at the end of the helical spring near the sealing portion 210. One end of the helical spring abuts against the push block 208, and the other end abuts against the side wall of the mounting cavity 207. When the abutment joint 206 of the abutment part 203 abuts against the lower end of the front side of the wheel 500, the abutment part 203 slides backward due to the impact force of the wheel 500. The push block 208 of the abutment part 203 then abuts against and compresses the coil spring, causing the coil spring to contract and apply an elastic buffering force to the abutment part 203. In this embodiment, the elastic buffer part 205 is set as a coil spring, which is not only easy to install but also has a long service life. In addition, it generates a stronger elastic buffering force and is more practical.

[0065] It should be noted that the elastic buffer 205 can also be other structures, such as an elastic rubber sleeve, which will not be elaborated here. In addition, when the drive member 300 is provided with a linkage mechanism 301, the end of the linkage mechanism 301 near the swing part 202 can be provided with a sleeve hole, and the linkage mechanism 301 can be rotatably sleeved on the end of the abutment part 203 away from the abutment joint 206 through the sleeve hole. The abutment part 203 can be equipped with a limiting bolt to prevent the linkage mechanism 301 from disengaging. Of course, the swing part 202 can also be provided with a fourth connecting shaft 212, and the linkage mechanism 301 can be rotatably sleeved on the fourth connecting shaft 212 through the sleeve hole. When the drive member 300 is configured as a telescopic member 302, the end of the telescopic member 302 away from the base 100 may be provided with a sleeve hole, and the telescopic member 302 may be rotatably sleeved on the end of the abutment part 203 away from the abutment joint 206 through the sleeve hole. The abutment part 203 may be equipped with a limiting bolt to prevent the telescopic member 302 from disengaging. Alternatively, the swing part 202 may be provided with a fourth connecting shaft 212, and the telescopic member 302 may be rotatably sleeved on the fourth connecting shaft 212 through the sleeve hole.

[0066] refer to Figures 1 to 10 As shown, in some embodiments of the present invention, the surface of the abutment 206 opposite to the abutment portion 203 is configured as an outwardly convex spherical surface. Since the wheel 500 is relatively large, the abutment 206 typically abuts against the lower front end of the wheel 500. Therefore, in addition to the thrust along the length of the abutment portion 203, the wheel 500 also applies a downward vertical pressure. In this embodiment, the surface of the abutment 206 opposite to the abutment portion 203 is configured as an outwardly convex spherical surface. This improves the force distribution between the abutment 206 and the wheel 500, reduces the downward vertical pressure exerted on the abutment portion 203 by the wheel 500, and increases the thrust along the length of the abutment portion 203. This not only facilitates the rearward sliding of the abutment portion 203 along its own length but also makes the abutment portion 203 less prone to damage.

[0067] refer to Figures 1 to 3 , Figures 5 to 8 as well as Figure 11As shown, in some embodiments of the present invention, the top surface of the base 100 is used to support the track 600, and the top surface of the base 100 is provided with a plurality of track clamping blocks 103, which are used to limit the track 600. For example, two sets of track clamping blocks 103 can be provided, and the two sets of track clamping blocks 103 can be arranged in a horizontal direction perpendicular to the first axis 101. Each set of track clamping blocks 103 can include at least two track clamping blocks 103, and the track clamping blocks 103 in the same set can be arranged in the extension direction of the first axis 101. The track 600 is located between the two sets of track clamping blocks 103. The track 600 has a bottom block, and the track clamping blocks 103 can abut against the side wall and top surface of the bottom block of the track 600. In this way, not only can the wheel blocking device be further fixed, but the wheel blocking device is not directly fixedly connected to the track 600, thereby avoiding damage to the track 600 caused by the impact force applied by the train.

[0068] It should be noted that the track clamp 103 can limit the movement of only one of the tracks 600, resulting in a smaller construction area and easier installation. The track clamp 103 is a common component used to limit the movement of the track 600, and its structure will not be described in detail here.

[0069] refer to Figures 1 to 11 As shown, in some embodiments of the present invention, the base 100 is provided with a detection probe 400, which is used to detect whether the blocking member 200 is in a first state. For example, the detection probe 400 can be a proximity switch, a distance sensor, or a vision sensor, etc. The detection probe 400 can be electrically connected to a controller, which can be electrically connected to the telescopic member 302. When the detection probe 400 detects that the blocking member 200 is in the first state, it sends a signal to the controller, which controls the telescopic member 302 to stop operating, so that the blocking member 200 can remain in the first state, thereby improving the effect of preventing the vehicle from slipping.

[0070] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A wheel-stopping device for preventing train runaway, characterized in that, include: Base; The blocking component includes a mounting part and a swinging part. The mounting part is rotatably connected to the base about a first axis, and the swinging part is rotatably connected to the mounting part about a second axis parallel to the first axis. The swinging part is provided with a contacting part for abutting against a wheel. A driving component is disposed between the swinging part and the base to drive the swinging part to rotate relative to the mounting part, and the swinging part can drive the mounting part to rotate relative to the base after rotating by a preset angle; Specifically, when the swinging part is flipped upward so that the abutting part is directly above the second axis, and the mounting part is rotated so that the abutting part is on one side of the vertical plane where the first axis is located, the blocking member is in the first state in which the abutting part can abut the wheel; When the swinging part flips downwards to the preset angle and drives the mounting part to rotate, the blocking member is in a second state where the abutting part is separated from the wheel.

2. The wheel blocking device for preventing train runaway according to claim 1, characterized in that, The end of the mounting part away from the base has an abutment surface. After the swinging part rotates to the preset angle, it abuts against the abutment surface to drive the mounting part to rotate.

3. The wheel blocking device for preventing train runaway according to claim 1 or 2, characterized in that, The driving component includes: A linkage mechanism, with its two ends rotatably connected to the swinging part and the base, respectively; The telescopic component is rotatably connected at both ends to the linkage mechanism and the base, respectively. When the telescopic member extends or retracts, it can drive the swinging part to rotate through the linkage mechanism.

4. The wheel blocking device for preventing train runaway according to claim 3, characterized in that, When the blocking member is in the first state, the linkage mechanism is in the dead position.

5. The wheel blocking device for preventing train runaway according to claim 4, characterized in that, The linkage mechanism includes a first link and a second link. The ends of the first link and the second link that are close to each other are rotatably connected. The other end of the first link is rotatably connected to the swing part. The other end of the second link is rotatably connected to the base. The telescopic member is rotatably connected to the second link. When the blocking member is in the first state, the first link and the second link form a 180° angle and are in the dead point position.

6. The wheel blocking device for preventing train runaway according to claim 5, characterized in that, The second link is provided with a limiting part. When the blocking member is in the second state, the bottom surface of the first link abuts against the top surface of the limiting part, and the end of the second link near the base is lower than the end of the second link near the first link.

7. The wheel blocking device for preventing train runaway according to claim 6, characterized in that, The second connecting rod is provided with a first connecting shaft, one end of the telescopic member is rotatably sleeved on the first connecting shaft, and one end of the first connecting shaft forms the limiting part.

8. The wheel blocking device for preventing train runaway according to claim 1 or 2, characterized in that, The abutting part is slidably mounted on the swinging part, the sliding direction of the abutting part is parallel to the first axis, and an elastic buffer part is provided between the abutting part and the swinging part.

9. The wheel blocking device for preventing train runaway according to claim 8, characterized in that, The length direction of the abutting part is parallel to the first axis. One end of the abutting part is provided with an abutting head. The swinging part is provided with an installation cavity. The elastic buffer part is configured as a helical spring. The helical spring is installed in the installation cavity and sleeved on the outside of the abutting part. The abutting part is provided with a push block. The push block abuts against the end of the helical spring near the abutting head.

10. The wheel blocking device for preventing train runaway according to claim 9, characterized in that, The surface of the abutment on the side opposite to the abutment portion is configured as an outwardly convex spherical surface.

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