An automatic wheel stop

Abstract

The application discloses an automatic wheel stopper, which comprises a base, a wheel stopper plate and an actuator installed on the base, the middle part or one end of the wheel stopper plate is hinged to a connecting rod, the connecting rod is installed on a sliding block, the sliding block is connected with the actuator, the actuator drives the sliding block to move, under the driving of the actuator, the sliding block moves with the connecting rod and makes the wheel stopper plate rotate around the hinge point, the wheel stopping part of the wheel stopper plate is lifted or lowered to switch the locking or loosening state of the wheel. The application has the advantages of simple structure, high automation degree and simple operation.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the field of rail transit, in particular to an automatic wheel stopper. BACKGROUND

[0002] Due to the small wheel-rail friction resistance, the energy consumption of rail vehicles is much lower than that of other transportation modes. In order to avoid the safety hazards such as vehicle sliding under external force after parking, a two-way wheel stopper must be set for the wheels after parking.

[0003] In actual application, many parking conditions occur at fixed positions on the line, such as subway vehicles parked in fixed tracks for maintenance after exiting operation, vehicles entering fixed lines for maintenance and storage, etc. In this case, a two-way wheel stopper needs to be set for the wheels by manual method.

[0004] Since the wheel stopper is generally not light, the work intensity of manually setting and removing the wheel stopper is large. When the length of the parked vehicle is long, multiple posts need to be set to perform the wheel stopper setting and removal work. This low-automation operation mode will bring high labor cost. At the same time, since the wheel stopper setting and removal are both manual operations, there is a risk of human negligence in not performing the wheel stopper setting or removal work, which brings the risk of train operation safety. SUMMARY

[0005] The technical problem to be solved by the present application is to provide an automatic wheel stopper with simple structure, high automation and easy operation, aiming at the technical problems existing in the prior art.

[0006] To solve the above technical problems, the present application adopts the following technical scheme:

[0007] An automatic wheel stopper comprises a base, a wheel stopper plate and an actuator installed on the base, the middle part or one end of the wheel stopper plate is hinged to a connecting rod, the connecting rod is installed on a sliding block, the sliding block is connected with the actuator, the actuator drives the sliding block to move, under the driving of the actuator, the sliding block moves with the connecting rod and rotates the wheel stopper plate around the hinge point, so as to lift or lower the wheel stopper part of the wheel stopper plate to switch the locking or releasing state of the wheels.

[0008] As a further improvement of the above technical scheme, the actuator comprises a driving unit and a push rod, under the driving of the driving unit, the push rod moves linearly in an extension and retraction mode, and moves with the sliding block.

[0009] As a further improvement of the above technical scheme, the driving unit is a hydraulic drive or an electric drive, which controls the extension, retraction and stop of the push rod in the form of control signal, and can output the push stroke of the push rod.

[0010] As a further improvement of the above technical solution: the actuator is connected with the upper control host, the action of the actuator is controlled through the upper control host, the state of the actuator is monitored through the upper control host, and the working state of the automatic wheel stopper is judged through the state of the actuator and / or the position of the push rod and the sliding block.

[0011] As a further improvement of the above technical solution: the base comprises a bottom plate, a guide rail and a support seat, the guide rail and the support seat are installed on the bottom plate, one end of the wheel stop plate is hinged to the support seat, and the guide rail is arranged along the movement direction of the sliding block and allows the sliding block to move above it.

[0012] As a further improvement of the above technical solution: the sliding block is in abutting engagement with the support seat when it is in an extreme movement position.

[0013] As a further improvement of the above technical solution: the bottom plate further comprises an ear plate, and the ear plate is used to install the actuator.

[0014] As a further improvement of the above technical solution: one end of the sliding block is provided with a first mounting groove for connecting a connecting rod, and the connecting rod is connected in the first mounting groove; the other end of the sliding block is provided with a second mounting groove for connecting the actuator, and the actuator is connected in the second mounting groove.

[0015] As a further improvement of the above technical solution: the bottom of the sliding block is provided with a dovetail groove for cooperating with the guide rail.

[0016] As a further improvement of the above technical solution: the middle part or one end of the wheel stop plate is hinged to the connecting rod through a pin shaft and can rotate around the hinge point to realize the lifting or lowering of the wheel stop part.

[0017] Compared with the prior art, the automatic wheel stopper has the advantages that:

[0018] The automatic wheel stopper has the advantages of simple structure, high automation degree, and easy operation. The automatic wheel stopper can be automatically set and removed through a remote signal, which solves the problems of high labor intensity, high labor cost and safety hazards caused by personnel negligence in the current manual setting of the wheel stopper, and improves the automation degree, operation efficiency and operation reliability of the wheel stopper setting operation. At the same time, in order to improve the reliability and service life of the mechanism and the actuator, the actuator should not be loaded in the non-working state, and the reliability and safety are high. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall structure schematic diagram of the present application.

[0020] Figure 2 is the three-dimensional exploded structure principle schematic diagram of the present application.

[0021] Figure 3 is the structural principle diagram of the slider in the specific application example of the present application.

[0022] Figure 4 is the structural principle diagram of the base in the specific application example of the present application.

[0023] Figure 5 is the locking principle diagram in the specific application example of the present application.

[0024] Figure 6 is the principle diagram when the stopper is in the working state in the specific application example of the present application.

[0025] Figure 7 is Figure 6 the cross-sectional view at A-A.

[0026] Figure 8 is the principle diagram when the stopper is in the reset state in the specific application example of the present application.

[0027] Figure 9 is Figure 8 the cross-sectional view at B-B.

[0028] Legend:

[0029] 1, base; 2, stopper plate; 3, connecting rod; 4, slider; 5, actuator; 6, first pin shaft; 7, fourth pin shaft; 8, second pin shaft; 9, third pin shaft; 10, fifth pin shaft; 11, box-shaped rail; 12, fastener; 13, wheel; 101, bottom plate; 102, guide rail; 103, support seat; 104, ear plate; 401, dovetail groove; 501, driving unit; 502, push rod. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below in conjunction with the drawings and specific examples.

[0031] As shown in the specification and claims of the present application, unless otherwise explicitly indicated by the context, the words "one", "an", "a", and / or "the" do not mean to specify a single number but can also include a plurality. The words "first", "second", and similar words used in the present disclosure do not mean any order, number, or importance, but are only used to distinguish different components. Similarly, the words "include" or "contain" and similar words mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, and do not exclude other elements or objects. The words "connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0032] AsFigures 1-5 As shown, the automatic wheel stopper of the present application comprises a base 1, a wheel stopper plate 2 and an actuator 5, the middle or one end of the wheel stopper plate 2 is hinged to a connecting rod 3, the connecting rod 3 is installed on a sliding block 4, the sliding block 4 is connected to the actuator 5, the actuator 5 drives the sliding block 4 to move, under the drive of the actuator 5, the sliding block 4 moves with the connecting rod 3 and makes the wheel stopper plate 2 rotate around the hinge point, so as to lift or lower the wheel stopper part of the wheel stopper plate 2; when the wheel stopper part of the wheel stopper plate 2 is in the lifted state, it is higher than the upper surface of the wheel track (such as box track 11), at this time the wheel stopper plate 2 cooperates with the wheel 13 to limit the passing of the wheel 13. When the wheel stopper part of the wheel stopper plate 2 is in the lowered state, it is lower than the upper surface of the wheel track (such as box track 11), at this time the wheel stopper plate 2 cannot cooperate with the wheel 13 to ensure the passing of the wheel 13.

[0033] In a specific application example, the actuator 5 comprises a driving unit 50101 and a push rod 502, under the drive of the driving unit 50101, the push rod 502 makes a telescopic linear motion, and the sliding block 4 moves. In a specific application, the driving unit 501 can be a hydraulic drive or an electric drive, in this example, it is an electric drive, that is, by adjusting the input electric signal, the extension, retraction and stop of the push rod 502 can be controlled, and the push rod 502 can also output the push stroke.

[0034] In a specific application example, the base 1 is the basic component of the automatic wheel stopper of the present application, which is used to install and fix the components of the wheel stopper mechanism, and is also used to fix the wheel stopper in the working position (such as the inside of the box track 11). In this example, the base 1 comprises a bottom plate 101, a guide rail 102, a support seat 103 and an ear plate 104, the guide rail 102, the support seat 103 and the ear plate 104 are all installed on the bottom plate 101, and these components are fixed as a whole. One end of the wheel stopper plate 2 is hinged to the support seat 103 through a first pin shaft 6, the guide rail 102 is arranged along the movement direction of the sliding block 4 and allows the sliding block 4 to move above it, and the ear plate 104 is used to install the actuator 5, in this example, the actuator 5 is connected to the ear plate 104 through a fifth pin shaft 10.

[0035] As a preferred example, the sliding block 4 is in abutting engagement with the support seat 103 when it is in an extreme movement position. The support seat 103 is installed on the bottom plate 101 through fasteners (such as fastening screws).

[0036] In a specific application example, one end of the slider 4 has a first mounting slot for connecting the connecting rod 3, the connecting rod 3 is connected in the first mounting slot through a second pin shaft 8; the other end of the slider 4 has a second mounting slot for connecting the push rod 502 of the actuator 5, the push rod 502 is connected in the second mounting slot through a third pin shaft 9; the bottom of the slider 4 is provided with a dovetail groove 401 for cooperating with the guide rail 102.

[0037] In a specific application example, the middle or one end of the wheel stop plate 2 is hinged to the connecting rod 3 through a fourth pin shaft 7, and can rotate around the hinge point to realize the lifting or lowering of the wheel stop part.

[0038] In a specific application example, the input and output cables of the actuator 5 are coupled to a superior control host, and the action of the actuator 5 is controlled through the superior control host. Further, the superior control host is used to monitor the state of the actuator 5, and the working state of the automatic wheel stopper is judged through the state of the actuator 5, and / or the position of the push rod 502 and the slider 4, so as to realize real-time monitoring, avoid misoperation, and reduce safety hazards.

[0039] Working principle: referring to Figure 6 and Figure 7 , the working state of the automatic wheel stopper: the push rod 502 of the actuator 5 is elongated to the maximum position and stopped, the slider 4 is attached to the support seat 103, and the wheel stop plate 2 is higher than the upper surface of the box rail 11, at this time the wheel stop part of the wheel stop plate 2 cooperates with the wheel 13 to limit the passing of the wheel 13. When the wheel 13 extrudes and collides with the wheel stop part of the wheel stop plate 2, under the extrusion force F, since the force direction of the connecting rod 3 and the motion zero angle exist self-locking angle β, at this time the pressing force F is transmitted to the base 1 through mechanical structure contact, the actuator 5 is not loaded, and the wheel stopper mechanism is in a stable state.

[0040] In this working state, when the actuator 5 receives and executes the retraction instruction, the push rod 502 pulls the slider 4 to slide on the guide rail 102, and the slider 4 in turn drives the connecting rod 3 and the wheel stop plate 2 to rotate, and the structure that the wheel stop plate 2 is higher than the upper surface of the box rail 11 gradually decreases and disappears. When the push rod 502 of the actuator 5 is retracted to the limit position and stopped, the automatic wheel stopper enters the reset state.

[0041] Referring to Figure 8 and Figure 9 , the reset state of the wheel stopper: the push rod 502 of the actuator 5 is retracted to the limit position and stopped, the wheel stop plate 2 is lower than the upper surface of the box rail 11, at this time the wheel stopper does not limit the passing of the wheel 13, and the slider 4 and the connecting rod 3 driven by the slider 4 are in a mechanism follow-up state. Under the action of gravity, the mechanism does not bear external force, and the system is in a stable state.

[0042] In this working state, when the actuator 5 gets and executes the elongation instruction, the push rod pushes the sliding block 4 to slide on the guide rail 102, the sliding block 4 in turn drives the connecting rod 3 and the stop wheel plate 2 to rotate, and the stop wheel plate 2 gradually rises above the upper surface of the box rail 11. When the push rod 502 of the actuator 5 is elongated to the limit position, it is automatically stopped and enters the stop wheel working state.

[0043] In the specific application, the user can install the automatic stop wheel of the present application at the fixed parking position during the operation of the rail vehicle. First, the position of the line installation stop wheel is determined, the track is replaced with the box rail 11 or similar structure, and the upper surface of the box rail 11 is reserved with a groove for the stop wheel plate 2 to pass through; then the stop wheel is installed on the inner side of the box rail 11 and fixed by fasteners; and the input and output cables of the actuator 5 are connected to the upper control host.

[0044] When the vehicle is allowed to pass through the position, the upper control host sends a reset instruction to the automatic stop wheel, the push rod 502 of the actuator 5 is retracted to the limit position and stopped, and the monitoring system monitors the position of the stop wheel plate 2 in real time. When all the stop wheels are in the reset state, the vehicle can pass through the position.

[0045] When the vehicle is restricted to pass through the position, the upper control host sends a working instruction to the automatic stop wheel, the push rod 502 of the actuator 5 is elongated to the limit position and stopped, and the monitoring system monitors the position of the stop wheel plate 2 in real time. When all the stop wheels are in the working state, the vehicle is restricted to pass through the position.

[0046] Further, in the specific application of the present application, it can be set according to actual needs, that is, which direction of vehicle passing needs to be restricted, that is, corresponding automatic stop wheels are set on the line; when bidirectional restriction of passing is required, two groups of automatic stop wheels should be set to restrict different directions.

[0047] Therefore, when the automatic stop wheel of the present application is used, according to the position of the wheel during maintenance parking and the direction of passing that needs to be restricted, the box rail 11 is set in double tracks and bidirectionally, and the automatic stop wheel is installed inside. The input and output cables of the stop wheel are connected to the upper control host. In the non-working state, the stop wheel is in the reset state, the stop wheel plate 2 is lower than the upper surface of the box rail 11, and the vehicle can pass in both directions. When the vehicle passing needs to be restricted, the vehicle is parked at the specified position first, and then a working instruction is sent. The actuator 5 is elongated to the limit position and stopped, and the monitoring system monitors the position of the stop wheel plate 2 in real time. When all the stop wheels are in the working state, the vehicle is restricted to pass through the position. When the train maintenance is completed and the passing restriction needs to be removed, a reset instruction is sent, the actuator 5 is retracted to the limit position and stopped, and the monitoring system monitors the position of the stop wheel plate 2 in real time. When all the stop wheels are in the reset state, the vehicle can pass through the position.

[0048] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical scheme falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and refinements without departing from the principles of the present application shall be considered as the protection scope of the present application.

Claims

1. An automatic wheel stop, characterized by, The application relates to a wheel stopper, which comprises a base (1), a wheel stopper (2) and an actuator (5) installed on the base (1), the middle or one end of the wheel stopper (2) is hinged to a connecting rod (3), the connecting rod (3) is installed on a sliding block (4), the sliding block (4) is connected with the actuator (5), the actuator (5) drives the sliding block (4) to move, under the driving of the actuator (5), the sliding block (4) moves with the connecting rod (3) and drives the wheel stopper (2) to rotate around the hinge point, so that the wheel stopping part of the wheel stopper (2) is lifted or lowered to switch the locking or releasing state of a wheel (13); the actuator (5) comprises a driving unit (501) and a push rod (502), under the driving of the driving unit (501), the push rod (502) performs linear extension and retraction, and drives the sliding block (4) to move; the driving unit (501) is driven by hydraulic pressure or electricity, and the push rod (502) is controlled to extend, retract, stop and work in the mode of control signal, and the extension stroke of the push rod (502) can be output; the actuator (5) is connected with a superior control host, the action of the actuator (5) is controlled by the superior control host, the state of the actuator (5) is monitored by the superior control host, and the working state of the automatic wheel stopper is judged according to the state of the actuator (5) and / or the position of the push rod (502) and the sliding block (4).

2. The automatic wheel chock of claim 1, wherein The base (1) comprises a bottom plate (101), guide rails (102) and a supporting seat (103), the guide rails (102) and the supporting seat (103) are installed on the bottom plate (101), one end of the wheel stopper (2) is hinged to the supporting seat (103), and the guide rails (102) are arranged along the movement direction of the sliding block (4) and allow the sliding block (4) to move above the guide rails (102).

3. The automatic wheel chock of claim 2, wherein, The sliding block (4) is in abutting engagement with the supporting seat (103) when the sliding block (4) is in an extreme movement position.

4. The automatic wheel chock of claim 2, wherein The bottom plate (101) further comprises an ear plate (104), and the ear plate (104) is used for installing the actuator (5).

5. The automatic wheel chock of claim 1, wherein, One end of the sliding block (4) is provided with a first mounting groove for connecting the connecting rod (3), and the connecting rod (3) is connected in the first mounting groove; the other end of the sliding block (4) is provided with a second mounting groove for connecting the actuator (5), and the actuator (5) is connected in the second mounting groove.

6. The automatic wheel chock of claim 2, wherein The bottom of the sliding block (4) is provided with dovetail grooves (401) for cooperating with the guide rails (102).

7. The automatic wheel chock of claim 1, wherein The middle or one end of the wheel stopper (2) is hinged to the connecting rod (3) through a pin shaft and can rotate around the hinge point to lift or lower the wheel stopping part.

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