A protective device for a current collector

Abstract

The protective device for a current collector disclosed in the present application includes a locking mechanism, and a first shield and a second shield arranged side by side; a positioning pin is provided on the first shield, a first notch is provided on the side where the first shield contacts the second shield, a pin hole matching the positioning pin is provided on the second shield, and a second notch corresponding to the first notch is provided on the second shield; the first shield and the second shield are connected to form a shield body through the positioning pin and the pin hole, and the first notch and the second notch form a closed opening, and the locking mechanism is used to fix and lock the first shield and the second shield; the shield body formed by the first shield and the second shield is used to be arranged outside the current collector to protect the current collector. The first shield and the second shield of the protective device can be respectively located on the top and three sides of the current collector to protect the current collector, which can prevent snow from falling on the current collector, thereby avoiding the current collector from discharging to the vehicle and improving the running safety of the vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of rail transit vehicles, and in particular to a protective device for a current collector. Background Art

[0002] With the continuous advancement of urban rail transit technology, the demand for vehicle operation safety is getting higher and higher, and the vehicle operation safety is required to adapt to changes in the external environment. The train contacts the power rail through the current collector at the bottom of the train, and transmits the power on the power rail to the train to power the train. When encountering severe snowy weather, snow will accumulate between the current collector and the vehicle, causing the current collector to arc discharge to the train, affecting the operational safety of the train, and in severe cases causing short circuits and burning equipment.

[0003] Therefore, how to provide a protective device for the current collector that can effectively prevent snow from falling onto the current collector and avoid the current collector from discharging to the vehicle is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a protective device for a current receiver, which is arranged on the top and three sides of the current receiver to protect the current receiver, thereby preventing accumulated snow from falling on the current receiver, thereby avoiding the current receiver from discharging to the vehicle and improving the operating safety of the vehicle.

[0005] The technical solutions provided by this application are as follows:

[0006] A protective device for a current collector comprises a locking mechanism, and a first protective cover and a second protective cover arranged side by side;

[0007] The first shield is provided with a positioning pin, a first notch is provided on one side of the first shield in contact with the second shield, a pin hole matching the positioning pin is provided on the second shield, and a second notch corresponding to the first notch is provided on the second shield;

[0008] The first shield and the second shield are connected to form a shield body through the positioning pin and the pin hole, and the first notch and the second notch form a closed opening, and the locking mechanism is used to fix and lock the first shield and the second shield;

[0009] The cover body formed by connecting the first cover and the second cover is used to be arranged outside the current receiver to protect the current receiver.

[0010] Furthermore, the locking mechanism includes a spring, a first connecting plate, a second connecting plate, a handle, and a first shaft, a spring shaft, a fixed shaft group and a handle shaft arranged in sequence;

[0011] The first shaft is fixed on the first shield, the spring shaft is fixed on the second shield, the handle is rotatably sleeved on the handle shaft, and the front section of the handle can cooperate to contact the first shaft, and the rear section of the handle can cooperate to contact the second shield;

[0012] The spring is located at the lower middle part of the handle, and one end of the spring is hinged on the spring shaft, and the other end of the spring is hinged on the handle shaft;

[0013] The fixed shaft group includes a first fixed shaft and a second fixed shaft, wherein the first fixed shaft and the second fixed shaft are arranged on two sides of the handle opposite to each other and are respectively fixed on the second shield;

[0014] The first connecting plate and the second connecting plate are respectively located on both sides of the handle, and one end of the first connecting plate is rotatably mounted on the handle shaft, and the other end of the first connecting plate is rotatably mounted on the first fixed shaft, and one end of the second connecting plate is rotatably mounted on the handle shaft, and the other end of the second connecting plate is rotatably mounted on the second fixed shaft;

[0015] By pressing the rear section of the handle to the first shield, the front section of the handle can cooperate with the first shaft to fix and lock the first shield and the second shield.

[0016] Furthermore, a groove is provided at a position where the front section of the handle contacts the first shaft, and the groove is adapted to the first shaft.

[0017] Furthermore, the first shield is provided with a first notch, and the two ends of the first shaft are respectively fixed in the first notch;

[0018] A second notch is provided at a corresponding position of the second shield, two ends of the spring shaft are respectively fixed in the second notch, and the first fixed shaft and the second fixed shaft are respectively fixed on both sides of the second notch.

[0019] Furthermore, the first shield is provided with an avoidance slot on the side where the locking mechanism is located;

[0020] Alternatively, a relief slot is provided on the second shield at the side where the locking mechanism is located.

[0021] Furthermore, the first shield and the second shield are electrically insulated.

[0022] Furthermore, the first shield and the second shield are fixed to a support outside the current collector by means of bolts and nuts respectively.

[0023] Furthermore, the locking mechanism and the positioning pin are respectively located on two sides of the opening.

[0024] Furthermore, at least two positioning pins are provided, and at least two pin holes matching the positioning pins are provided.

[0025] Furthermore, the opening is located at the top of the cover body.

[0026] The protective device for a current receiver provided by the present invention comprises a first protective cover and a second protective cover arranged in parallel to form a cover body, and fixed and locked by a locking mechanism; the cover body can cover the top and three sides of the current receiver to protect the current receiver, and the first notch of the first protective cover and the second notch of the second protective cover form a closed opening for the cable on the current receiver to pass through; the cover body is arranged on the top and the outer side of the current receiver to prevent snow from falling on the current receiver and isolate the current receiver from the vehicle, thereby avoiding the current receiver from discharging to the vehicle and improving the running safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the structure of a protective device for a current collector in an embodiment of the present application;

[0029] Figure 2 It is a partially enlarged structural diagram of the locking mechanism on the protective device for the current collector in the embodiment of the present application;

[0030] Figure 3 This is a structural schematic diagram of the installation of the current collector on the vehicle body in the embodiment of the present application;

[0031] Figure 4 This is a schematic diagram of the structure when the protective device is installed on the vehicle body in the embodiment of the present application;

[0032] Figure 5 In the embodiment of the present application, the protective device is Figure 4 Schematic diagram of the structure when looking in the direction of the arrow;

[0033] Figure 6 This is a schematic structural diagram of a locking mechanism of a protective device for a current collector in an embodiment of the present application;

[0034] Figure 7 This is a schematic diagram of the structure of the locking mechanism in the embodiment of the present application when the locking state is released;

[0035] Figure 8It is a structural schematic diagram of the locking mechanism in the locked state in the embodiment of the present application.

[0036] Description of the drawings: vehicle body 1, first protective cover 2, first slot 201, locating pin 202, second protective cover 3, second slot 301, avoidance gap 302, locking mechanism 4, spring 401, first connecting plate 402, second connecting plate 403, handle 404, first axis 405, spring axis 406, first fixed axis 407, second fixed axis 408, handle axis 409, groove 410, opening 5, current collector 6, bolt 7, support 8, cable 9. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0041] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0042] like Figure 1 and Figure 2 As shown, the present embodiment provides a protective device for a current receiver, comprising a locking mechanism 4, and a first protective cover 2 and a second protective cover 3 arranged side by side; a positioning pin 202 is provided on the first protective cover 2, a first notch is provided on a side edge where the first protective cover 2 contacts the second protective cover 3, a pin hole matching the positioning pin 202 is provided on the second protective cover 3, and a second notch corresponding to the first notch is provided on the second protective cover 3; the first protective cover 2 and the second protective cover 3 are connected to form a cover body through the positioning pin 202 and the pin hole, and the first notch and the second notch form a closed opening 5, and the locking mechanism 4 is used to fix and lock the first protective cover 2 and the second protective cover 3; the cover body formed by connecting the first protective cover 2 and the second protective cover 3 is used to be arranged on the outside of the current receiver 6 to protect the current receiver 6.

[0043] like Figure 3 and Figure 4 As shown, the current collector 6 on the bottom side of the vehicle body 1 is fixed to the vehicle body 1 via a support 8, and a cable 9 is connected to the current collector 6. The current collector 6 obtains electrical energy by contacting the power supply rail, and then transmits the electrical energy to the vehicle through the cable 9.

[0044] The protective device for the current receiver 6 provided in this embodiment has a first protective cover 2 and a second protective cover 3 arranged in parallel, and the first notch of the first protective cover 2 and the second notch of the second protective cover 3 are assembled from both sides of the cable 9 to form a closed opening 5 for the cable 9 on the current receiver 6 to pass through. The first protective cover 2 is provided with a positioning pin 202, and the second cover body is provided with a pin hole. The first protective cover 2 and the second protective cover 3 are assembled into a cover body by cooperating with the positioning pin 202 and the pin hole, which can cover the top and three sides of the current receiver 6 to protect the current receiver 6, and the first protective cover 2 and the second protective cover 3 are fixed and locked by the locking mechanism 4. The cover body is arranged on the top and three sides of the current receiver 6, and the bottom side of the current receiver 6 and the side close to the middle of the vehicle body are not blocked by the cover body, so that the current receiver 6 can work normally. When encountering severe weather such as snowfall, the device is installed on the support 8 outside the current receiver 6 at the lower part of the vehicle body 1, as shown in FIG. Figure 4 and Figure 5As shown, the cover body composed of the first shield 2 and the second shield 3 can prevent snow from falling on the current collector 6 and isolate the current collector 6 from the vehicle, thereby preventing the current collector 6 from contacting the vehicle through the snow, causing the current collector 6 to discharge to the vehicle, and improving the operating safety of the vehicle in rainy and snowy weather. When there is no snow, the locking mechanism 4 can be used to release the fixed lock, and then the first shield 2 and the second shield 3 can be removed from both sides of the cable 9 on the current collector 6. The device adopts a split structure of the first shield 2 and the second shield 3, which is convenient for the cable 9 on the current collector 6 to pass through, and is easy to disassemble and install, and can achieve quick installation and disassembly.

[0045] This embodiment further describes the locking mechanism 4. Figures 6 to 8 As shown, the locking mechanism 4 includes a spring 401, a first connecting plate 402, a second connecting plate 403, a handle 404, and a first shaft 405, a spring shaft 406, a fixed shaft group and a handle shaft 409 which are arranged in sequence;

[0046] The first shaft 405 is fixed on the first shield 2, the spring shaft 406 is fixed on the second shield 3, the handle 404 is rotatably sleeved on the handle shaft 409, and the front section of the handle 404 can cooperate to contact the first shaft 405, and the rear section of the handle 404 can cooperate to contact the second shield 3;

[0047] The spring 401 is located at the lower middle part of the handle 404, and one end of the spring 401 is hinged on the spring shaft 406, and the other end of the spring 401 is hinged on the handle shaft 409;

[0048] The fixed shaft group includes a first fixed shaft 407 and a second fixed shaft 408. The first fixed shaft 407 and the second fixed shaft 408 are arranged on two sides of the handle 404 and are fixed on the second shield 3 respectively.

[0049] The first connecting plate 402 and the second connecting plate 403 are respectively located on both sides of the handle 404, and one end of the first connecting plate 402 is rotatably mounted on the handle shaft 409, and the other end of the first connecting plate 402 is rotatably mounted on the first fixed shaft 407, and one end of the second connecting plate 403 is rotatably mounted on the handle shaft 409, and the other end of the second connecting plate 403 is rotatably mounted on the second fixed shaft 408;

[0050] By pressing the rear section of the handle 404 to the first shield 2 , the front section of the handle 404 can cooperate with the first shaft 405 to fix and lock the first shield 2 and the second shield 3 .

[0051] When the first shield 2 and the second shield 3 are installed, the specific process of the locking mechanism 4 to achieve fixed locking is as follows: Figure 7As shown, when the locking mechanism 4 is in the unlocked state, the spring 401 is in a natural state, and the spring shaft 406, the fixed shaft group and the handle shaft 409 are in a triangular distribution state, the rear section of the handle 404 is pressed downward, the spring 401 is stretched, and the spring 401 has a counterclockwise torque force on the handle shaft 409. The handle 404 overcomes the counterclockwise torque of the spring 401, so that the handle shaft 409 drives the first connecting plate 402 and the second connecting plate 403 to rotate clockwise around the fixed shaft group. When the handle shaft 409 is on the same horizontal line as the fixed shaft group and the first shaft 405, that is, the front section of the handle 404 is in an overlapping state with the first connecting plate 402 and the second connecting plate 403, the spring shaft 406 is just located at or close to the handle shaft 409 and On the horizontal line where the fixed axis group is located, the locking mechanism 4 is in a dead point position. At this time, the front section of the handle 404 contacts the first fixed axis 407, and the rear section of the handle 404 continues to be pressed downward. The handle axis 409, the fixed axis group and the spring axis 406 are triangularly distributed. The spring 401 has a clockwise torque force on the handle axis 409. The handle 404 drives the first connecting plate 402 and the second connecting plate 403 to continue to rotate clockwise around the fixed axis group. When the rear section of the handle 404 contacts the second shield 3, under the action of the clockwise torque, the rear section of the handle 404 maintains a close contact state with the second shield 3, and the front section of the handle 404 maintains a close contact state with the fixed axis, so that the first shield 2 and the second shield 3 are fixed and locked. Figure 8 shown.

[0052] When the first shield 2 and the second shield 3 need to be disassembled, the specific process of the locking mechanism 4 to release the fixed lock is that the rear section of the handle 404 is lifted upward, and the handle 404 overcomes the clockwise torque of the spring 401, so that the handle shaft 409 drives the first connecting plate 402 and the second connecting plate 403 to rotate counterclockwise around the fixed axis group. When the handle shaft 409 is on the same horizontal line as the fixed axis group and the first axis 405, that is, the front section of the handle 404 is in a coincident state with the first connecting plate 402 and the second connecting plate 403, the spring shaft 406 is just It is best to be located at or close to the horizontal line where the handle shaft 409 and the fixed shaft group are located, the locking mechanism 4 is in the dead point position, and the rear section of the handle 404 continues to be lifted upward, the front section of the handle 404 is detached from the first shaft 405, the spring shaft 406, the fixed shaft group, and the handle shaft 409 are distributed in a triangle, and the spring 401 generates a counterclockwise torque force on the handle shaft 409 until the spring 401 returns to its natural state, and the front section of the handle 404 remains detached from the first shaft 405, thereby releasing the fixation of the first shield 2 and the second shield 3.

[0053] In order to facilitate the front section of the handle 404 to contact with the first shaft 405 , a groove 410 is provided at the contact portion between the front section of the handle 404 and the first shaft 405 , and the groove 410 is adapted to the first shaft 405 .

[0054] This embodiment further illustrates the arrangement of the locking mechanism on the first shield 2 and the second shield 3. As shown in the figure, the first shield 2 is provided with a first slot 201, and the two ends of the first axis 405 are respectively fixed in the first slot 201; the second shield 3 is provided with a second slot 301 at a corresponding position, and the two ends of the spring axis 406 are respectively fixed in the second slot 301, and the first fixed axis 407 and the second fixed axis 408 are respectively fixed on both sides of the second slot 301. A first notch 201 is provided on the side of the first shield 2 that contacts the second shield 3, two ends of the first shaft 405 are respectively fixed in the first notch 201, a second notch 301 is provided on the second shield 3 at a position corresponding to the first notch 201, two ends of the spring shaft 406 are respectively fixed in the second notch 301, one end of the first fixed shaft 407 is fixed on the second notch 301 on one side of the handle 404, one end of the second fixed shaft 408 is correspondingly fixed on the second notch 301 on the other side of the handle 404, and the first fixed shaft 407 and the second fixed shaft 408 are on the same straight line.

[0055] Among them, the front section and the rear section of the handle 404 preferably form a certain angle, and the connection position between the front section and the rear section of the handle 404 is sleeved on the handle shaft 409, so that when the handle 404 is rotated clockwise, the front section of the handle 404 can be in contact with the first fixed rod, and the rear section of the handle 404 can be in contact with the second shield 3, and under the action of the torque force of the spring 401, the rear section of the handle 404 is kept in close contact with the second shield 3, and the front section of the handle 404 is in close contact with the first shaft 405, thereby realizing the fixation and locking of the first shield 2 and the second shield 3.

[0056] When the locking mechanism 4 is activated, a small amount of displacement change will occur in the first shield 2 and the second shield 3, which can be compensated by the elastic deformation of the first shield 2 and the second shield 3. In order to provide sufficient displacement change space for the first shield 2 and the second shield 3, the first shield 2 is provided with an avoidance slit 302 on the side where the locking mechanism 4 is located; or, the second shield 3 is provided with an avoidance slit 302 on the side where the locking mechanism 4 is located.

[0057] Preferably, the first shield 2 and the second shield 3 are both electrically insulated. The first shield 2 and the second shield 3 can prevent the current collector 6 from discharging to the vehicle better and provide higher safety.

[0058] Specifically, in this embodiment, the first shield 2 and the second shield 3 are respectively fixed to the support 8 outside the current receiver 6 by bolts 7 and nuts. The support 8 outside the current receiver 6 is provided with mounting screw holes, and the first shield 2 and the second shield 3 are fixed to the support 8 by bolts 7 and screw holes, and are fixed and locked by nuts, so that disassembly and assembly are convenient and reliable.

[0059] In order to improve the fixing effect of the first shield 2 and the second shield 3, the locking mechanism 4 and the positioning pin 202 are respectively located on both sides of the opening 5. One side of the opening 5 is fixedly installed by the positioning pin 202 and the pin hole, and the other side of the opening 5 is fixedly locked by the locking mechanism 4, so that the first shield 2 and the second shield 3 are fixed together to form a shield body. Preferably, at least two positioning pins 202 are provided, and at least two pin holes matching the positioning pins 202 are provided. A plurality of positioning pins 202 and pin holes can be provided as needed to optimize the fixing effect of the first shield 2 and the second shield 3.

[0060] In this embodiment, the opening 5 is preferably located at the top of the cover body. The opening 5 is located at the top of the cover body, which is convenient for the cable 9 to pass through the top of the cover body.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A protective device for a current collector, characterized in that: It includes a locking mechanism, and a first shield and a second shield arranged side by side; The first shield is provided with a positioning pin, a first notch is provided on one side of the first shield in contact with the second shield, a pin hole matching the positioning pin is provided on the second shield, and a second notch corresponding to the first notch is provided on the second shield; The first shield and the second shield are connected to form a shield body through the positioning pin and the pin hole, and the first notch and the second notch form a closed opening, and the locking mechanism is used to fix and lock the first shield and the second shield; The cover body formed by connecting the first cover and the second cover is used to be arranged outside the current receiver to protect the current receiver; The locking mechanism includes a spring, a first connecting plate, a second connecting plate, a handle, and a first shaft, a spring shaft, a fixed shaft group and a handle shaft which are arranged in sequence; The first shaft is fixed on the first shield, the spring shaft is fixed on the second shield, the handle is rotatably sleeved on the handle shaft, and the front section of the handle can cooperate to contact the first shaft, and the rear section of the handle can cooperate to contact the second shield; The spring is located at the lower middle part of the handle, and one end of the spring is hinged on the spring shaft, and the other end of the spring is hinged on the handle shaft; The fixed shaft group includes a first fixed shaft and a second fixed shaft, wherein the first fixed shaft and the second fixed shaft are arranged on two sides of the handle opposite to each other and are respectively fixed on the second shield; The first connecting plate and the second connecting plate are respectively located on both sides of the handle, and one end of the first connecting plate is rotatably mounted on the handle shaft, and the other end of the first connecting plate is rotatably mounted on the first fixed shaft, and one end of the second connecting plate is rotatably mounted on the handle shaft, and the other end of the second connecting plate is rotatably mounted on the second fixed shaft; By pressing the rear section of the handle to the first shield, the front section of the handle can cooperate with the first shaft to fix and lock the first shield and the second shield.

2. The protection device for current collector according to claim 1, characterized in that: A groove is provided at the contact position between the front section of the handle and the first shaft, and the groove is matched with the first shaft.

3. The protection device for current collector according to claim 1, characterized in that: The first shield is provided with a first notch, and the two ends of the first shaft are respectively fixed in the first notch; A second notch is provided at a corresponding position of the second shield, two ends of the spring shaft are respectively fixed in the second notch, and the first fixed shaft and the second fixed shaft are respectively fixed on both sides of the second notch.

4. The protection device for current collector according to any one of claims 1 to 3, characterized in that: The first shield is provided with an avoidance slot on the side where the locking mechanism is located; Alternatively, a relief slot is provided on the second shield at the side where the locking mechanism is located.

5. The protection device for current collector according to any one of claims 1 to 3, characterized in that: The first shield and the second shield are both electrically insulated.

6. The protection device for current collector according to any one of claims 1 to 3, characterized in that: The first shield and the second shield are respectively fixed to the support outside the current collector by bolts and nuts.

7. The protection device for current collector according to claim 1, characterized in that: The locking mechanism and the positioning pin are respectively located on two sides of the opening.

8. The protection device for current collector according to claim 1, characterized in that: There are at least two positioning pins, and at least two pin holes matching the positioning pins are provided.

9. The protection device for current collector according to claim 1, characterized in that: The opening is located at the top of the cover body.

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