Current receiving device

Abstract

The present invention discloses a current collecting device, comprising a base, a current collecting seat, a swinging assembly and a current collecting assembly. The base is provided with a connecting structure connected to the vehicle frame, and the current collecting assembly is provided on the current collecting seat. The swinging assembly comprises a quadrilateral linkage mechanism A, a parallelogram linkage mechanism B and a parallelogram linkage mechanism C. The quadrilateral linkage mechanism A and the parallelogram linkage mechanism B are provided in parallel on the base. The first end of the parallelogram linkage mechanism C is connected in series with the parallelogram linkage mechanism, and the current collecting seat is provided at the second end of the parallelogram linkage mechanism C, so that the current collecting seat always maintains an unchanged posture relative to the base. The present invention is applied to the field of rail transportation, and not only has the advantages of flexible structural layout, large extension range, and high current collecting reliability, but also can adaptively offset the tilt angle introduced when the lateral and side deflection amplitudes of the train are large, so that the current collector or pantograph meets the requirements of stable current collection under working conditions where the extension amplitude is large.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transportation such as high-speed railway trains, guide rail rubber-wheeled trains, urban subways, tram trains, bus rapid transit (BRT), light rail railways and magnetic levitation train sets for overhead line current collection and third rail current collection, and specifically relates to a current collection device. Background Art

[0002] A current collector (pantograph) is a current-collecting device installed on the vehicle frame of urban rail transit. The current collector's sliding shoes contact the ground or (elevated) power rails, directing ground or elevated power to the train. The pantograph, on the other hand, collects power from the contact network and directs it to the train through the sliding shoes on the pantograph's head contacting the overhead lines.

[0003] For the current collector, during normal operation, the spring force presses the current collector swing arm and current collector shoe against the power rail (third rail), ensuring stable and reliable contact between the current collector shoe and the power rail. For the pantograph, during normal operation, the spring force presses the pantograph swing arm and pantograph shoe against the overhead line contact network, ensuring stable and reliable contact between the pantograph and the contact network.

[0004] In the existing current collectors and pantographs, a single quadrilateral structure is used to realize the telescopic movement of the sliding shoe and the bow head. The disadvantage is that the structural layout flexibility is low, and it cannot adapt to the system coordination requirements of the spatial structural layout under large telescopic dimensions. It cannot keep the sliding shoe or the bow head in a parallel state, and the adaptability to the telescopic range is small. When the train has a large lateral displacement and yaw relative to the track, an angle is generated, which can easily cause the current collecting sliding shoe to jump and arc, making the train current collection unstable and unable to adapt to working conditions requiring a large extension range. Summary of the Invention

[0005] In response to the above-mentioned deficiencies in the prior art, the present invention provides a current collecting device, specifically a current collector or pantograph, which can ensure reliable contact between the current collecting slide and the power supply rail, and between the pantograph and the overhead line contact network under application conditions where the train has large lateral displacement and yaw amplitude.

[0006] To achieve the above-mentioned object, the present invention provides a current receiving device, comprising a base, a current receiving seat, a swing assembly and a current receiving assembly, wherein the base is provided with a connection structure connected to a vehicle frame, and the current receiving assembly is provided on the current receiving seat;

[0007] The swing assembly includes a quadrilateral linkage mechanism A, a parallelogram linkage mechanism B and a parallelogram linkage mechanism C, wherein the quadrilateral linkage mechanism A and the parallelogram linkage mechanism B are arranged in parallel on the base;

[0008] The first end of the parallelogram linkage C is connected in series with the parallelogram linkage, and the current receiving seat is provided at the second end of the parallelogram linkage C, so that the current receiving seat always maintains an unchanged posture relative to the base.

[0009] In one embodiment, the swing assembly includes a first swing link, a second swing link, a first pull rod, a second pull rod, a first connecting rod and a second connecting rod;

[0010] The first rocker arm is hinged to the base via hinge a, and the first end of the first rocker arm is hinged to the second rocker arm and the first connecting rod via hinge b. The first end of the first pull rod is hinged to the first connecting rod via hinge f, and the second end of the first pull rod is hinged to the base via hinge e. That is, the first rocker arm, the first connecting rod, the first pull rod, and the base form the parallelogram linkage mechanism B, whose four corner points are hinge a, hinge b, hinge f, and hinge e.

[0011] The first end of the second rocker arm is hinged to the current receiving seat via a hinge g; the first end of the second pull rod is hinged to the current receiving seat via a hinge h, and the second end of the second pull rod is hinged to the first connecting rod via a hinge i. That is, the second rocker arm, the first connecting rod, the second pull rod, and the current receiving seat form the parallelogram linkage C, whose four corner points are hinges b, g, h, and i.

[0012] The second end of the second rocker arm is hinged to the first end of the second connecting rod through a hinge c, and the second end of the second connecting rod is hinged to the base through a hinge d; that is, the first rocker arm, the second rocker arm, the second connecting rod and the base constitute the quadrilateral linkage mechanism A, whose four corner points are hinge a, hinge b, hinge c and hinge d.

[0013] In one embodiment, the swing assembly further includes an elastic rod, a first end of the elastic rod being hinged to the base, a second end of the elastic rod being hinged to the second end of the first swing rod via a hinge j, and the hinge d, the first end of the elastic rod, and the hinge j being spaced apart in sequence so that the current receiving seat has a tendency to move outward under the elastic force of the elastic rod.

[0014] In one embodiment, the elastic rod includes a first spring and a spring pull rod;

[0015] The first end of the first spring is hinged to the base, the second end of the first spring is fixedly connected to the first end of the spring pull rod, and the second end of the spring pull rod is hinged to the second end of the first rocker via a hinge j; or

[0016] The first end of the spring pull rod is hinged to the base, the second end of the spring pull rod is fixedly connected to the first end of the first spring, and the second end of the first spring is hinged to the second end of the first rocker via a hinge j.

[0017] In one embodiment, the current receiving device further includes a retraction drive mechanism, the base is rotatably connected to a first pin shaft, and the first swing arm is fixedly sleeved on the first pin shaft to form the hinge a;

[0018] The retraction drive mechanism includes a first drive cylinder provided on the base, and the first drive rod is connected to the first pin shaft and the first rocker arm through a connecting rod mechanism D to drive the first pin shaft and the first rocker arm to rotate, thereby overcoming the elastic force of the elastic rod to drive the current receiving seat to retract.

[0019] In one embodiment, the current receiving device further includes a locking and unlocking mechanism, which is provided on the base and is used to lock the current receiving seat when the current receiving seat is retracted, or unlock the current receiving seat when the current receiving seat needs to be extended.

[0020] In one embodiment, the locking and unlocking mechanism includes a second driving cylinder, a locking plate and a second spring;

[0021] The locking plate is rotatably connected to the base, the first end of the second spring is connected to the base, and the second end of the second spring is connected to the locking plate;

[0022] The current receiving seat is provided with a first striker, the locking plate is provided with a slot, and the locking plate is located on the displacement path of the first striker, so that the first striker hits the locking plate and is locked into the slot;

[0023] A second striker is provided on the locking plate, the second driving cylinder is provided on the base, and the second striker is located on the telescopic path of the telescopic end of the second driving cylinder, so that the locking plate rotates under the drive of the second driving cylinder, thereby causing the first striker to disengage from the slot.

[0024] In one embodiment, the current collecting assembly includes a current collecting sliding shoe and a sliding shoe seat;

[0025] The first end of the sliding shoe seat is hinged to the current collecting seat, and the current collecting sliding shoe is arranged at the second end of the sliding shoe seat.

[0026] In one embodiment, the current collecting assembly includes a pantograph and a pantograph bracket;

[0027] The first end of the pantograph bracket is connected to the current collecting seat, and the pantograph is arranged at the second end of the pantograph bracket.

[0028] In one embodiment, the connection structure is an insulator provided at the bottom of the base.

[0029] Compared with the prior art, the present invention has the following beneficial technical effects:

[0030] 1. The current collecting device of the present invention not only has the advantages of flexible structural layout, large extension range, and high current collection reliability, but also can adaptively offset the tilt angle introduced by large lateral and sideways train deflections, allowing the current collector or pantograph to meet the requirements of stable current collection in operating scenarios requiring large extension range.

[0031] 2. The present invention uses a quadrilateral linkage mechanism and two parallelogram linkage mechanisms as a swinging component, so that the current collecting component will not have an additional deflection angle relative to the contact rail / contact line as the swinging component swings, which is beneficial to improving the contact state of the shoe rail / bow net and achieving stable current collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0033] Figure 1 is a first isometric view of the current collecting device in the embodiment of the present invention, which is a current collector and is in a contracted state;

[0034] Figure 2 is a second isometric view of the embodiment of the present invention in which the current collecting device is a current collector and is in a contracted state;

[0035] Figure 3 is a first isometric view of the current collecting device in the embodiment of the present invention, which is a current collector in an expanded state;

[0036] Figure 4 is a second isometric view of the current collecting device in the embodiment of the present invention, which is a current collector and is in an expanded state;

[0037] Figure 5 is a first isometric view of a current collecting device in a retracted state when the current collecting device is a pantograph in an embodiment of the present invention;

[0038] Figure 6 is a second isometric view of a current collecting device in a retracted state when the current collecting device is a pantograph in an embodiment of the present invention;

[0039] Figure 7 A first isometric view of a current collecting device in an embodiment of the present invention, in which the current collecting device is a pantograph and is in an unfolded state;

[0040] Figure 8 A second isometric view of a current collecting device in an embodiment of the present invention, in which the current collecting device is a pantograph and is in an unfolded state;

[0041] Figure 9 is an axonometric view of the swing assembly in an embodiment of the present invention;

[0042] Figure 10 is a front view of the swing assembly in an embodiment of the present invention;

[0043] Figure 11 It is a partial schematic diagram of the locking and unlocking mechanism in an embodiment of the present invention.

[0044] Figure Number:

[0045] 1-base, 101-insulator, 102-rocker base, 103-limit screw, 104-locking bracket;

[0046] 2-current receiving seat, 201-first striker;

[0047] 3- first cable;

[0048] 4- Second cable;

[0049] 5-First swing;

[0050] 6-Second swing;

[0051] 7- first tie rod;

[0052] 8- Second tie rod;

[0053] 9-first connecting rod;

[0054] 10- second connecting rod;

[0055] 11-elastic rod, 1101-first spring, 1102-spring pull rod;

[0056] 12-first drive cylinder;

[0057] 13-connecting seat;

[0058] 14- driving arm;

[0059] 15-third connecting rod;

[0060] 16- second driving cylinder;

[0061] 17-locking plate, 1701-vertical plate, 1702-horizontal plate, 1703-slot, 1704-second striker, 1705-rounded corner structure;

[0062] 18- second spring;

[0063] 19-current receiving sliding shoe;

[0064] 20-slipper seat;

[0065] 21- pantograph;

[0066] 22- pantograph bracket;

[0067] a- hinge between the first pendulum rod and the pendulum rod seat;

[0068] b-the common-phase hinge between the first swing rod, the second swing rod and the first connecting rod;

[0069] c- hinge between the second rocker arm and the second connecting rod;

[0070] d-hinge between the second link and the base;

[0071] e- hinge between the first tie rod and the rocker seat;

[0072] f-hinge between the first pull rod and the first connecting rod;

[0073] g- hinge between the second pendulum rod and the current receiving seat;

[0074] h- hinge between the second pull rod and the current receiving seat;

[0075] i- hinge between the second tie rod and the first connecting rod;

[0076] j- hinge between the elastic rod and the first rocker arm.

[0077] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0078] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0079] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0080] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes.

[0081] Two, for example, two, three, etc., unless otherwise clearly specified.

[0082] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection, electrical connection, physical connection, or wireless communication connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0084] like Figures 1 to 11 The figure shows a current collecting device disclosed in this embodiment, which mainly includes a base 1, a current collecting seat 2, a swinging assembly, a conductive assembly and a current collecting assembly. The base 1 is a rectangular frame structure made of metal, and the four corners of the bottom are bolted with insulators 101 as a connecting structure for connecting to the frame. The current collecting assembly is arranged on the current collecting seat 2, and the conductive assembly includes a first cable 3 and a second cable 4. The first end of the first cable 3 is connected to the current collecting assembly by bolts, and the second end of the first cable 3 is connected to the base 1 by bolts. The first end of the second cable 4 is connected to the base 1 by bolts, and the second end of the second cable 4 extends outward for connecting to the electric shock device on the rail vehicle. During the operation of the rail vehicle, the current collecting assembly guides the current of the power supply rail or the contact network into the electric shock device on the rail vehicle through the first cable 3 and the second cable 4, completing the current collecting work during the movement of the rail vehicle.

[0085] The swing assembly is mainly used to connect the base 1 and the current receiving seat 2, and supports the current receiving seat 2 and the current receiving assembly during the operation of the rail vehicle, so that the current receiving assembly can maintain stable contact with the power supply rail or the contact network. Specifically, the swing assembly includes a quadrilateral linkage mechanism A, a parallelogram linkage mechanism B and a parallelogram linkage mechanism C. The quadrilateral linkage mechanism A and the parallelogram linkage mechanism B are arranged in parallel on the base 1. The first end of the parallelogram linkage mechanism C is connected in series with the parallelogram linkage mechanism, and the current receiving seat 2 is arranged at the second end of the parallelogram linkage mechanism C. The parallelogram linkage mechanism B and the parallelogram linkage mechanism C are linked with the quadrilateral linkage mechanism A, and the current receiving seat 2 always maintains an unchanged posture relative to the base 1, so that the current receiving seat 2 always maintains an unchanged posture relative to the base 1.

[0086] In the specific implementation process, a rocker base 102 is fixedly mounted on the base 1 by bolts, and the rocker assembly includes a first rocker 5, a second rocker 6, a first pull rod 7, a second pull rod 8, a first connecting rod 9 and a second connecting rod 10. Among them:

[0087] The first rocker arm 5 is hinged near its second end to the rocker arm seat 102 on the base 1 via hinge a. The first end of the first rocker arm 5 is hinged to the second rocker arm 6 and the first connecting rod 9 via hinge b. The first end of the first pull rod 7 is hinged to the first connecting rod 9 via hinge f, and the second end of the first pull rod 7 is hinged to the rocker arm seat 102 on the base 1 via hinge e. In other words, the first rocker arm 5, the first connecting rod 9, the first pull rod 7, and the rocker arm seat 102 on the base 1 form a parallelogram linkage mechanism B, in which the first rocker arm 5 and the first connecting rod 7 are always parallel, and the first connecting rod 9 and the rocker arm seat 102 are always parallel. The four corner points of the parallelogram linkage mechanism B are hinges a, b, f, and e.

[0088] The first end of the second swing link 6 is hinged to the current receiving seat 2 via hinge g. The first end of the second pull rod 8 is hinged to the current receiving seat 2 via hinge h, and the second end of the second pull rod 8 is hinged to the first connecting rod 9 via hinge i. Furthermore, because the second swing link 6 and the first connecting rod 9 are hinged via hinge b, the second swing link 6, the first connecting rod 9, the second connecting rod 8, and the current receiving seat 2 form a parallelogram linkage C. The second swing link 6 and the second pull rod 8 are always parallel, and the first connecting rod 9 is always parallel to the current receiving seat 2. The four corner points of the parallelogram linkage C are hinges b, g, h, and i.

[0089] The second end of the second rocker arm 6 is hinged to the first end of the second connecting rod 10 via hinge c, and the second end of the second connecting rod 10 is hinged to the base 1 via hinge d. The first rocker arm 5 is hinged to the rocker arm base 102 and the first connecting rod 9 via hinge a and hinge b, respectively. Because the base 1 and the rocker arm base 102 are rigidly connected as a single unit, the first rocker arm 5, the second rocker arm 6, the second connecting rod 10, and the base 1 form a quadrilateral linkage A, the four corner points of which are hinges a, b, c, and d.

[0090] From the specific implementation structures of the aforementioned quadrilateral linkage mechanism A, parallelogram linkage mechanism B, and parallelogram linkage mechanism C, it can be seen that rocker base 102 can be considered an extension of base 1. Therefore, quadrilateral linkage mechanism A and parallelogram linkage mechanism B share base 1 in parallel, while parallelogram linkage mechanism B and parallelogram linkage mechanism C share first link 9 in series. Parallelogram linkage mechanism B and parallelogram linkage mechanism C are linked with any quadrilateral mechanism. Constrained by the parallelism of the opposite sides of the parallelogram, the hinge a-hinge e edge and the hinge b-hinge f edge, as well as the hinge b-hinge i edge and the hinge g-hinge h edge, remain parallel during the swinging of the quadrilateral series-parallel linkage. This allows current collector 2 to maintain its position relative to base 1, achieving parallel movement during the swinging process. Therefore, when the current collecting component is installed on the current collecting seat 2, even under the application conditions where the train has large lateral displacement and yaw amplitude, the current collecting component will not have an additional deflection angle relative to the power supply rail / contact network as the transmission structure swings, which is beneficial to improving the contact state of the shoe rail / panel and achieving stable current collection.

[0091] In this embodiment, the swing assembly further includes an elastic rod 11, the first end of which is hinged to the base 1 via a second pin, and the second end of which is hinged to the second end of the first swing arm 5 via a hinge j. Hinge d, the second pin, and hinge j are spaced apart on the base 1. Therefore, under the elastic force (tension) of the elastic rod 11, the second end of the first swing arm 5 has a driving force to displace toward hinge d. As the second end of the first swing arm 5 displaces toward hinge d, the coordinated operation of the quadrilateral linkage mechanism A, the parallelogram linkage mechanism B, and the parallelogram linkage mechanism C causes the first end of the first swing arm 5 to displace away from the base 1, simultaneously driving the first link 9 and the current collecting seat 2 to displace away from the base 1. Ultimately, the current collecting assembly on the current collecting seat 2 can contact the power rail or contact network. During this process, since the posture of the current collecting seat 2 remains unchanged relative to the base 1, the current collecting component will not have an additional deflection angle relative to the power supply rail / contact network as the transmission structure swings, which is beneficial to improving the contact state of the shoe rail / bow network and achieving stable current collection.

[0092] In a specific implementation, the elastic rod 11 is composed of a first spring 1101 and a spring pull rod 1102. The first end of the first spring 1101 is hinged to the base 1, the second end of the first spring 1101 is fixedly connected to the first end of the spring pull rod 1102, and the second end of the spring pull rod 1102 is hinged to the second end of the first rocker 5 via a hinge j. Alternatively, the first end of the spring pull rod 1102 can be hinged to the base 1, the second end of the spring pull rod 1102 is fixedly connected to the first end of the first spring 1101, and the second end of the first spring 1101 is hinged to the second end of the first rocker 5 via a hinge j.

[0093] As a preferred embodiment, more than one elastic rod 11 can be provided in an application. When there are multiple elastic rods 11, the elastic rods 11 are always kept parallel. It is worth noting that the number of elastic rods 11 can be adjusted according to actual needs. Although two elastic rods 11 are shown in this embodiment, one, three, or four elastic rods can also be provided in a specific application.

[0094] In this embodiment, hinge a, hinge b, hinge c, hinge d, hinge e, hinge f, hinge g, hinge h, hinge i, and hinge j can all be hinged by using pins.

[0095] As a preferred embodiment, the current receiving device further includes a retraction drive mechanism, which is primarily used to pull the current receiving device from the deployed state back to the retracted state. During this process, the retraction drive mechanism overcomes the elastic force of the elastic rod 11 and drives the second end of the first rocker 5 away from the hinge d, causing the entire current receiving device to fold up for easy storage.

[0096] Specifically, the pin defining the position of hinge a is the first pin, which is rotatably connected to the rocker base 102. The first rocker 5 is fixedly mounted on the first pin, forming hinge a. The retraction drive mechanism includes a first drive cylinder 12 mounted on the base 1. This first drive cylinder 12 is connected to the first pin via a linkage D, driving the first pin to rotate, thereby overcoming the elastic force of the elastic rod 11 and retracting the current receiving base 2 and the current receiving assembly. More specifically, the first drive cylinder 12 is positioned on the base 1 between hinge d and the rocker base 102. The linkage D includes a connecting base 13, a driving arm 14, and a third connecting rod 15. The connecting base 13 is fixedly mounted on the telescopic end of the first drive cylinder 12. The first end of the driving arm 14 is fixedly mounted on the first pin. The first end of the third connecting rod 15 is hingedly connected to the second end of the driving arm 14, and the second end of the third connecting rod 15 is hingedly connected to the connecting base 13. When the telescopic end of the first driving cylinder 12 is extended, the first pin shaft is driven to rotate under the action of the connecting rod mechanism D, and then the first rocker arm 5 is driven to rotate around the first pin shaft, driving the second end of the first rocker arm 5 to a direction away from the hinge d, thereby converting the current receiving device from the expanded state to the retracted state.

[0097] As the current-collecting device transitions from its expanded state to its retracted state, the second end of the first rocker arm 5 moves away from the hinge d, while the first end of the first rocker arm 5 moves toward the base 1. This means that the first rocker arm 5 as a whole tends to move parallel to the base 1. However, due to the presence of the quadrilateral linkage A, if the first rocker arm 5 moves parallel to the base 1, mechanical interference would occur. Therefore, a limit screw 103 is provided on the base 1, located along the retracting path of the first rocker arm 5, to prevent it from moving parallel to the base 1.

[0098] When the retraction drive mechanism drives the current receiving device to a retracted state, in order to keep it in the retracted state for a long time, the retraction drive mechanism needs to continuously overcome the work of the elastic rod 11. To this end, in this embodiment, a locking and unlocking mechanism is also provided on the base 1 to lock the current receiving seat 2 when the current receiving seat 2 and the current receiving assembly are retracted, or to unlock the current receiving seat 2 when the current receiving seat 2 needs to be extended.

[0099] Specifically, the locking and unlocking mechanism includes a second driving cylinder 16 , a locking plate 17 and a second spring 18 .

[0100] The locking plate 17 is an L-shaped structural member, including a vertical plate 1701 and a horizontal plate 1702 along the horizontal direction. A locking bracket 104 is connected to the base 1 by bolts, and the L-shaped corner of the locking plate 17 is rotatably connected to the locking bracket 104 by a pin. The first end of the second spring 18 is connected to the base 1, and the second end of the second spring 18 is connected to the locking plate 17. Under the elastic force restriction of the second spring 18, the locking plate 17 is always in the normal position, that is, the horizontal plate 1702 of the locking plate 17 is parallel to the base 1, and the vertical plate 1701 of the locking plate 17 is perpendicular to the base 1. A first striker 201 is provided on the current receiving seat 2, and a card slot 1703 is provided on the vertical plate 1701 of the locking plate 17. When the flow receiving device is retracted, the top of the vertical plate 1701 of the locking plate 17 is located on the displacement path of the first striker 201, so that the first striker 201 can hit the top of the vertical plate 1701 of the locking plate 17 during the displacement process, so that the locking plate 17 overcomes the elastic force of the second spring 18 and rotates under the pressure of the first striker 201, until the first striker 201 is stuck in the slot 1703, and the locking plate 17 is reset under the elastic force of the second spring 18, so that the retraction and locking of the flow receiving device is completed, and the retraction drive mechanism no longer needs to continue to work. As a preferred embodiment, the top of the vertical plate 1701 of the locking plate 17 can be set to a rounded structure 1705, and the slot 1703 is located below the rounded structure 1705, and then the first striker 201 can be introduced into the slot 1703 through the rounded structure 1705. In the specific application process, the second pull rod 8 can also be hinged on the first striker 201.

[0101] A second striker 1704 is provided on the horizontal plate 1702 of the locking plate 17. The second drive cylinder 16 is provided on the base 1, and the telescopic end of the second drive cylinder 16 is perpendicular to the base 1. When the locking plate 17 is in the upright position, the second striker 1704 is located directly above the telescopic end of the second drive cylinder 16, that is, the second striker 1704 is located on the telescopic path of the telescopic end of the second drive cylinder 16. Therefore, when the flow receiving device needs to be deployed, it is only necessary to control the telescopic end of the second drive cylinder 16 to extend. When the telescopic end of the second drive cylinder 16 strikes the second striker 1704, the elastic force of the second spring 18 is overcome, driving the locking plate 17 to rotate, thereby disengaging the first striker 201 from the slot 1703. Subsequently, under the action of the elastic rod 11, the flow receiving device can be transformed from the retracted state to the deployed state.

[0102] In this embodiment, the current collecting device can be either a current collector or a pantograph in a specific application process.

[0103] When the current-receiving device in this embodiment is a current collector, the current-receiving assembly includes a current-receiving slipper 19 and a slipper seat 20. The first end of the first cable 3 is connected to the slipper seat 20 via a bolt. The first end of the slipper seat 20 is hinged to the current-receiving seat 2, and the current-receiving slipper 19 is disposed at the second end of the slipper seat 20. Specifically, the slipper seat 20 includes a first plate, a second plate, and a third plate. The second and third plates are arranged parallel to and spaced apart from each other at the bottom of the first plate, with the top of the current-receiving seat 2 embedded between the second and third plates. A universal joint bearing is provided at the top of the current-receiving seat 2, and the second and third plates engage the universal joint bearing via a pin. Preferably, a reset spring block is also provided between the top of the current-receiving seat 2 and the first plate, and the current-receiving slipper 19 is fixedly connected to the top of the first plate.

[0104] It is worth noting that, in specific implementation, the current collecting assembly of the current collector is not limited to the above-mentioned implementation structure, and conventional methods such as rigid connection may also be directly adopted, that is, the current collecting slipper 19 is rigidly connected to the slipper seat 20, and the slipper seat 20 is rigidly connected to the current collecting seat 2.

[0105] When the current collection device in this embodiment is a pantograph, the current collection assembly includes a pantograph 21 and a pantograph bracket 22. The first end of the pantograph bracket 22 is connected to the current collection base 2, and the pantograph 21 is mounted on the second end of the pantograph bracket 22. The specific implementation structure of the pantograph bracket 22 is conventional in the art and will not be further described in this embodiment.

[0106] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A current receiving device, characterized in that: It includes a base, a current receiving seat, a swing assembly and a current receiving assembly. The base is provided with a connection structure connected to the frame, and the current receiving assembly is provided on the current receiving seat. The swing assembly includes a quadrilateral linkage mechanism A, a parallelogram linkage mechanism B and a parallelogram linkage mechanism C, wherein the quadrilateral linkage mechanism A and the parallelogram linkage mechanism B are arranged in parallel on the base; The first end of the parallelogram linkage C is connected in series with the parallelogram linkage B, and the current receiving seat is provided at the second end of the parallelogram linkage C, so that the current receiving seat always maintains an unchanged posture relative to the base; The swing assembly includes a first swing rod, a second swing rod, a first pull rod, a second pull rod, a first connecting rod and a second connecting rod; The first rocker arm is hinged to the base via hinge a, and the first end of the first rocker arm is hinged to the second rocker arm and the first connecting rod via hinge b. The first end of the first pull rod is hinged to the first connecting rod via hinge f, and the second end of the first pull rod is hinged to the base via hinge e. That is, the first rocker arm, the first connecting rod, the first pull rod, and the base form the parallelogram linkage mechanism B, whose four corner points are hinge a, hinge b, hinge f, and hinge e. The first end of the second rocker arm is hinged to the current receiving seat via a hinge g; the first end of the second pull rod is hinged to the current receiving seat via a hinge h, and the second end of the second pull rod is hinged to the first connecting rod via a hinge i. That is, the second rocker arm, the first connecting rod, the second pull rod, and the current receiving seat form the parallelogram linkage C, whose four corner points are hinges b, g, h, and i. The second end of the second rocker arm is hinged to the first end of the second connecting rod through a hinge c, and the second end of the second connecting rod is hinged to the base through a hinge d; that is, the first rocker arm, the second rocker arm, the second connecting rod and the base constitute the quadrilateral linkage mechanism A, whose four corner points are hinge a, hinge b, hinge c and hinge d.

2. The current receiving device according to claim 1, wherein: The swing assembly also includes an elastic rod, a first end of the elastic rod is hinged to the base, and a second end of the elastic rod is hinged to the second end of the first swing rod through a hinge j. The hinge d, the first end of the elastic rod, and the hinge j are distributed in sequence at intervals so that the current receiving seat has a tendency to move outward under the elastic force of the elastic rod.

3. The current receiving device according to claim 2, wherein: The elastic rod includes a first spring and a spring pull rod; The first end of the first spring is hinged to the base, the second end of the first spring is fixedly connected to the first end of the spring pull rod, and the second end of the spring pull rod is hinged to the second end of the first rocker via a hinge j; or The first end of the spring pull rod is hinged to the base, the second end of the spring pull rod is fixedly connected to the first end of the first spring, and the second end of the first spring is hinged to the second end of the first rocker via a hinge j.

4. The current receiving device according to claim 2 or 3, wherein: It also includes a retraction drive mechanism, wherein the base is rotatably connected to a first pin shaft, and the first swing arm is fixedly sleeved on the first pin shaft to form the hinge a; The retraction drive mechanism includes a first drive cylinder provided on the base, and the first drive cylinder is connected to the first pin shaft and the first rocker arm through a connecting rod mechanism D to drive the first pin shaft and the first rocker arm to rotate, thereby overcoming the elastic force of the elastic rod to drive the current receiving seat to retract.

5. The current receiving device according to claim 4, wherein: It also includes a locking and unlocking mechanism, which is arranged on the base and is used to lock the current receiving seat when the current receiving seat is retracted, or unlock the current receiving seat when the current receiving seat needs to be extended.

6. The current receiving device according to claim 5, wherein: The locking and unlocking mechanism includes a second driving cylinder, a locking plate and a second spring; The locking plate is rotatably connected to the base, the first end of the second spring is connected to the base, and the second end of the second spring is connected to the locking plate; The current receiving seat is provided with a first striker, the locking plate is provided with a slot, and the locking plate is located on the displacement path of the first striker, so that the first striker hits the locking plate and is locked into the slot; A second striker is provided on the locking plate, the second driving cylinder is provided on the base, and the second striker is located on the telescopic path of the telescopic end of the second driving cylinder, so that the locking plate rotates under the drive of the second driving cylinder, thereby causing the first striker to disengage from the slot.

7. The current receiving device according to any one of claims 1 to 3, wherein: The current collecting assembly includes a current collecting sliding shoe and a sliding shoe seat; The first end of the sliding shoe seat is hinged to the current collecting seat, and the current collecting sliding shoe is arranged at the second end of the sliding shoe seat.

8. The current receiving device according to any one of claims 1 to 3, wherein: The current collecting assembly includes a pantograph and a pantograph bracket; The first end of the pantograph bracket is connected to the current collecting seat, and the pantograph is arranged at the second end of the pantograph bracket.

9. The current receiving device according to any one of claims 1 to 3, wherein: The connecting structure is an insulator arranged at the bottom of the base.

Images