WO2020107209A1

WO2020107209A1 - Opening and closing apparatus for streamlined dome for rail vehicle and a forward nose assembly

Info

Publication number: WO2020107209A1
Application number: PCT/CN2018/117658
Authority: WO
Inventors: 宋自帅; 张小军; 高帅; 孙丙岩
Original assignee: 中车戚墅堰机车车辆工艺研究所有限公司
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2020-06-04

Abstract

An Opening and closing apparatus for a streamlined dome (1) for a rail vehicle and a forward nose assembly. The Opening and closing apparatus comprises a pivoting arm (2) and a driving device (3) for driving the pivoting arm (2) to pivot with respect to a base (4). The driving device (3) comprises a driving body (36) and a driving rod (31); a first end of the driving rod (31) enters the driving body (36), and the driving rod (31) can move under the driving force provided by the driving body (36) to perform the pivoting of the pivoting arm (2) with respect to the base (4); a second end of the driving rod (31) is pivotally connected to the pivoting arm (2); and the driving body (36) is pivotally mounted on the base (4).

Description

Opening and closing device and front nose assembly of diversion cover of rail vehicle

Technical field

The invention belongs to the technical field of rail vehicles, and particularly relates to the front nose assembly of rail vehicles, and particularly to an opening and closing device for opening and closing the deflector.

Background technique

In rail vehicles, especially in high-speed EMUs, the front nose assembly is provided at the front end to protect the coupler components provided inside, and the front nose assembly usually has a streamlined appearance design to reduce the air of the rail vehicle in the process of moving forward Resistance, this is the deflector (or "fairing" or "front hatch") usually provided in the front nose assembly.

The shroud usually includes a left shroud and a right shroud. For example, when a coupler part is needed to couple and pull a coupler, the shroud needs to be opened and locked, and then closed and closed. Locking, therefore, it is necessary to provide corresponding opening and closing devices in the front nose assembly corresponding to the deflector.

In the prior art, by improving the pivoting arm of the opening and closing device and the driving device for driving the pivoting of the pivoting arm, the structure is simplified and the space in the shroud is increased, so that the shroud can be adapted to various head shapes And a larger swing angle of the coupler. For example, the Chinese patent application number 201610893581.5, titled "The opening and closing device of the deflector of the rail vehicle and the front nose assembly including the same" discloses a device for opening and closing the deflector of the rail vehicle, which It includes a pivoting arm and a driving device. The driving device includes a fixed part and a moving part. One end of the moving part extends into the fixed part and moves linearly under the action of the driving force, so that the pivoting arm can be driven to pivot relative to the base; and, by The locking groove provided on the moving part of the driving device and the locking pin provided corresponding to the locking groove realize the opening and closing locking of the diversion cover, thereby greatly simplifying its structure, reducing its cost and increasing the interior of the diversion cover Space. However, the patent also clearly discloses that the fixed part of the driving device is fixedly mounted on the base, and a slide rail assembly and a slide assembly (which can slide along the slide rail assembly) need to be provided on the pivot arm, and one end of the moving part is Hinged on the sliding assembly.

The sliding auxiliary structure is used to realize the connection between the driving rod and the pivot arm, although it can prevent the moving parts from being stuck when retracting, but due to the opening or closing operation of the diversion cover between the driving rod 31 and the corresponding pivot arm 2 The acting force is quite large, which not only complicates the structure of the pivoting arm 2 but also inevitably increases the strength and reliability of the sliding auxiliary structure, so there is still room for improvement and optimization.

In addition, in the closed or open locked state of the shroud, since the slider used in the sliding connection used in the above prior art can also slide slightly on the slide rail, it cannot be completely fixed; this may cause During the actual use, the shroud slightly shakes, which may reduce the reliability of the opening and closing device.

Summary of the invention

One of the purposes of the present disclosure is to improve the reliability of the opening and closing device of the shroud of a rail vehicle.

Yet another object of the present disclosure is to further simplify the structure of the opening and closing device of the shroud of the rail vehicle and to reduce its cost.

Yet another object of the present disclosure is to reduce maintenance operations of the opening and closing device of the shroud of a rail vehicle.

To achieve the above objects or other objects, the present invention provides the following technical solutions.

According to an aspect of the present disclosure, there is provided an opening and closing device for a shroud of a rail vehicle, which includes:

A pivoting arm, the first end of which is fixedly connected to the inside of the shroud, and the second end of which is pivotally connected to the base; and

A driving device for driving the pivoting arm to pivot relative to the base;

Wherein, the driving device includes a driving body and a driving rod, the first end of the driving rod enters the driving body and the driving rod can move under the driving force provided by the driving body to realize the pivot The pivot arm pivots relative to the base;

Wherein, the second end of the driving rod is pivotally connected with the pivoting arm, and the driving body is pivotally mounted on the base.

An opening and closing device according to an embodiment of the present disclosure, wherein the driving body is provided with a pivot shaft, and the driving body is pivotally mounted on the base through the pivot shaft.

An opening and closing device according to yet another embodiment of the present disclosure or any one of the preceding embodiments, wherein the drive device swings relative to the base around the pivot axis when the pivot arm pivots relative to the base.

The opening and closing device according to still another embodiment of the present disclosure or any one of the foregoing embodiments, wherein the pivot shaft is pivotally mounted on the bracket assembly of the base.

An opening and closing device according to yet another embodiment of the present disclosure or any of the foregoing embodiments, wherein the driving device is provided with a locking mechanism, the locking mechanism includes a locking groove provided on the driving lever and a corresponding A locking pin provided on the driving body with a locking groove.

An opening and closing device according to still another embodiment of the present disclosure or any one of the foregoing embodiments, wherein the locking groove includes a first locking groove and a second locking groove, and the driving body is provided with the pivot shaft The first locking pin and the second locking pin on both sides of the; when the first locking pin enters the first locking groove, the opening and closing device is in a closed locking state, and the second locking pin enters The opening and closing device is in an open locked state when the second locking slot is in use.

An opening and closing device according to yet another embodiment of the present disclosure or any of the foregoing embodiments, wherein the driving body is a cylinder and the driving rod is a piston rod;

Wherein, the cylinder includes a cylinder front cover, a cylinder rear cover and a cylinder body. The cylinder front cover and the cylinder rear cover are respectively provided with a first gas port and a second gas port for injecting and discharging high-pressure gas.

An opening and closing device according to yet another embodiment of the present disclosure or any of the foregoing embodiments, wherein the first locking pin is provided on the front cover of the cylinder, and the second locking pin is provided on the rear cover of the cylinder on;

By arranging the positions of the first locking pin and the first air port on the front cover of the cylinder, so that high-pressure gas is injected from the first air port to push the drive rod to move back substantially before The first locking pin leaves the first locking slot; and/or

By arranging the positions of the second locking pin and the second air port on the rear cover of the cylinder, the injection of high-pressure gas from the second air port can push the drive rod before moving forward substantially The second locking pin leaves the second locking groove.

An opening and closing device according to yet another embodiment of the present disclosure or any of the foregoing embodiments, wherein the pivot arm includes a left pivot arm and a right pivot arm, and the drive device includes a corresponding one provided for the left pivot arm A left driving device and a right driving device provided corresponding to the right pivot arm;

Wherein, the first locking pin and the second locking pin corresponding to the left driving device are provided with a left locking pin connecting rod; the first locking pin and the second locking pin corresponding to the right driving device are provided with a right Locking pin connecting rod.

An opening and closing device according to yet another embodiment of the present disclosure or any of the foregoing embodiments, wherein the opening and closing device further includes a manual unlocking mechanism, which includes:

Operating lever

An unlocking transmission member fixed on the operation lever; and

Push rod parts, both ends of which can drive the left locking pin connecting rod and the right locking pin connecting rod to move upward;

Wherein, when the operation lever is rotated, the unlocking transmission member that is rotated can push the pusher member to move upward, thereby pushing the left locking pin connecting rod and the right locking pin connecting rod to move upward, So that the locking pins on the left driving device and the right driving device leave the corresponding locking grooves.

An opening and closing device according to still another embodiment of the present disclosure or any of the foregoing embodiments, wherein both ends of the push rod member are pivotally mounted on pivot shafts on the left driving device and the right driving device, respectively On the pivot axis.

An opening and closing device according to yet another embodiment of the present disclosure or any one of the preceding embodiments, wherein the left locking pin connecting rod and the right locking pin connecting rod are provided at intermediate positions respectively for positioning and installation on the Said the first hole on the pivot shaft.

An opening and closing device according to still another embodiment of the present disclosure or any of the foregoing embodiments, wherein both ends of the left locking pin connecting rod and the right locking pin connecting rod are provided for passing through the first A second hole of the locking pin and the second locking pin, and the left locking pin connecting rod and the right locking pin connecting rod are both of the first locking pin and the second locking pin External boss limit.

An opening and closing device according to still another embodiment of the present disclosure or any one of the foregoing embodiments, wherein the corresponding push rod member is provided with a function to help realize the left lock pin connecting rod, the right lock pin connecting rod and the push rod member Reset element for reset.

An opening and closing device according to still another embodiment of the present disclosure or any of the foregoing embodiments, wherein the reset element is limited on the upper pivot shaft of the pivot shaft of the left drive device and the right drive device, the upper end of which The flap at the top of the upper pivot shaft directly or indirectly abuts, and its lower end directly or indirectly abuts the left locking pin connecting rod or the right locking pin connecting rod.

An opening and closing device according to still another embodiment of the present disclosure or any one of the foregoing embodiments, wherein the manual unlocking mechanism is one, which is arranged on the base between the left driving device and the right driving device.

An opening and closing device according to still another embodiment of the present disclosure or any of the foregoing embodiments, wherein the unlocking transmission member is a rounded rectangle or an ellipse.

An opening and closing device according to still another embodiment of the present disclosure or any one of the foregoing embodiments, wherein the manual unlocking mechanism further includes: support rods respectively provided below the ends of the push rod of the push rod member; wherein, the The supporting rod and the two ends of the push rod part are connected together and form a limited space, and the locking pin connecting rod passes through the limited space.

An opening and closing device according to still another embodiment of the present disclosure or any one of the foregoing embodiments, wherein the pivotal connection between the second end of the driving lever and the pivoting arm is a hinged connection.

According to yet another aspect of the present disclosure, there is provided a front nose assembly including a deflector cover, a coupler member disposed inside the deflector cover, and any of the above-mentioned opening and closing devices.

The above features and operations of the present invention will become more apparent from the following description and drawings.

BRIEF DESCRIPTION

The above and other objects and advantages of the present invention will be made more complete and clear from the following detailed description in conjunction with the drawings, wherein the same or similar elements are denoted by the same reference numerals.

FIG. 1 is a schematic perspective structural view of an opening and closing device for a shroud of a rail vehicle according to an embodiment of the present invention.

FIG. 2 is a side view of a part of the structure of the opening and closing device of the embodiment shown in FIG. 1 corresponding to the left or right shroud.

3 is a plan view of the opening and closing device of the embodiment shown in FIG. 1 in a closed and locked state.

FIG. 4 is a plan view of the opening and closing device of the embodiment shown in FIG. 1 in an open locked state.

5 is a cross-sectional view of a driving device and a locking mechanism provided on the opening and closing device according to an embodiment of the present invention.

6 is a cross-sectional view of the driving device and the locking mechanism shown in FIG. 5 when the opening and closing device is in an open and locked state.

7 is a cross-sectional view of the driving device and the locking mechanism shown in FIG. 5 when the opening and closing device is in a closed and locked state.

Fig. 8 is a side view of the driving lever in the driving device shown in Fig. 5.

9 is a side view of a manual unlocking mechanism in an opening and closing device according to yet another embodiment of the present invention.

10 shows the working principle of the manual unlocking mechanism of the embodiment shown in FIG. 9, wherein FIG. 10(a) illustrates a rear view of the manual unlocking mechanism and related components before the manual unlocking operation, and FIG. 10(b) illustrates the manual unlocking mechanism. Rear view of the manual unlocking mechanism and related parts.

11 is a schematic diagram of a manual unlocking mechanism in an opening and closing device according to still another embodiment of the present invention.

detailed description

The following describes some of the many possible embodiments of the present invention, intended to provide a basic understanding of the present invention, and is not intended to confirm the key or decisive elements of the present invention or limit the scope of protection. It is easy to understand that, according to the technical solution of the present invention, without changing the essential spirit of the present invention, those of ordinary skill in the art may propose other implementations that can be replaced with each other. Therefore, the following specific embodiments and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be regarded as the entirety of the present invention or as limitations or limitations to the technical solutions of the present invention.

In the following description, for the clarity and conciseness of the description, not all the components shown in the figures are described. The drawings show a number of components to provide a person with ordinary skill in the art with a fully achievable disclosure of the present invention. For those skilled in the art, the operation of many components is familiar and obvious.

Herein, the orientation terms of "upper", "lower", "left", "right", "front" and "rear" are defined relative to the orientation of the opening and closing device in the drawings when they are installed and used in rail vehicles And, it should be understood that these directional terms are relative concepts, and they are used for relative description and clarification, which can change accordingly according to the change of the orientation of the opening and closing device.

The opening and closing device according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 10 below.

The opening and closing device of an embodiment of the present invention is provided in the front nose assembly of a rail vehicle. Specifically, the front nose assembly of the embodiment of the present invention includes the opening and closing device and the air deflector 1 (including Left shroud 1a and right shroud 1b) and the coupler part (not shown in the figure) protected by the shroud 1, the coupler part can also be called "coupler assembly", the opening and closing device is mainly used to Open and close the left shroud 1a and the right shroud 1b, so that the coupler parts can be easily docked when opening (such as the docking part of another rail vehicle), and when closed, the shroud 1. The coupler components can be better protected, and the overall streamlined design of the shroud 1 is also helpful to reduce the wind resistance of the rail vehicle during the forward movement. It should be noted that the opening and closing device can be applied to various rail vehicles, especially suitable for high-speed rail vehicles; the specific shape and structure of the shroud 1 are not limited to the illustrated embodiment.

An opening and closing device according to an embodiment of the present invention is used to open and close the left and right

air guide hoods

1a and 1b of a symmetrical structure; corresponding to the left and right

air guide hoods

1a and 1b, the opening and closing device 10 The corresponding parts are provided separately, and they are arranged substantially symmetrically on the left and right. For ease of understanding, in FIGS. 1 to 4, and 10, the parts of the opening and closing device 10 corresponding to the left shroud 1a are marked with the letter "a", and the corresponding right diversion in the opening and closing device 10 The parts provided with the cover 1b are marked with the letter "b", and for the parts with the same number, the parts with the letter "a" and the parts with the letter "b" are arranged symmetrically, respectively. Wherein, FIG. 2 may be a part of components provided corresponding to the left shroud 1a or the right shroud 1b.

As shown in FIGS. 1 to 4, the opening and closing device can be integrally fixedly mounted on a rail vehicle, such as a car body, through the base 4, so that the front nose assembly of the embodiment of the present invention is mounted on the rail vehicle to form the present invention. An embodiment of the vehicle. In some figures, only a partial structure of the base 4 is shown. It should be understood that the specific structural design of the base 4 is not limiting.

As shown in FIGS. 1 to 4, the opening and closing device mainly includes a pivot arm 2, that is, a left pivot arm 2 a and a right pivot arm 2 b. One end of the left pivot arm 2a is fixedly connected to the inside of the left shroud 1a, for example, by a bolt connection, and the other end is pivotally connected to the base 4 through a rotating shaft 41a provided on the base 4; similarly, the right pivot arm 2b One end is fixedly connected to the inside of the right shroud 1b by, for example, a bolt connection, and the other end is pivotally connected to the base 4 through a rotating shaft 41b provided on the base 4. In this way, when the pivoting arm 2 pivots relative to the rotating shaft 41 (41a or 41b), the corresponding deflector can be driven to rotate, thereby performing an opening or closing operation. In an embodiment, the pivoting arm 2 can produce the main or all supporting effect on the corresponding deflector 1, which is beneficial to make the opening and closing device simpler and more compact in structure. It should be understood that the rigidity or supporting strength of the pivot arm 2 can be set according to the weight of the shroud 1.

In an embodiment, before the pivot arm 2 is installed and used (for example, before being installed and fixed between the shroud 1 and the rotating shaft 41), the overall length of the pivot arm 2 can be adjusted and set (for example, for length calibration adjustment) ), in this way, when the pivot arm 2 is installed to drive the shroud 1 to pivot and perform the closing operation, the closing and docking between the left shroud 1a and the right shroud 1b is better. Specifically, a length adjusting part (not shown in the figure) may be provided on the pivoting arm 2 respectively. It should be noted that the length of the length adjusting part may be fixed during use of the opening and closing device.

In yet another alternative embodiment, the rotation axis 41 may be provided as one, that is, the left pivot arm 2a and the right pivot arm 2b share a rotation axis 41; the rotation axis 41 may be located in the middle of the bottom plate 4 and pivot on both sides One ends of the

arms

2a and 2b are simultaneously pivotally connected to the same rotating shaft 41, and the other ends of the

pivot arms

2a and 2b are respectively connected to the

corresponding deflectors

1a and 1b.

In the opening and closing device according to an embodiment of the present invention, each pivot arm 2 is correspondingly provided with a drive device 3, for example, a left drive device 3a is provided for the left pivot arm 2a, and a right drive device 3b is provided for the right pivot arm 2b . The driving device 3 is used to drive the pivoting arm 2 to pivot relative to the base 4 (for example, during the process of opening the shroud).

As shown in FIG. 5, the driving device 3 is pivotally mounted on the base 4 and includes a driving body 36 and a driving lever 31. One end of the driving lever 31 is pivotally connected to the pivot arm 2 and the other end enters the driving body 36 to drive The lever 31 can perform a reciprocating linear movement of extending or retracting under the action of the driving force output or provided by the driving body 36, thereby pushing the corresponding pivot arm 2 to pivot relative to the base 4, and the deflector 1 can be opened or shut down.

Specifically, as shown in FIG. 5, the driving device 3 may be a cylinder type driving device, correspondingly, the driving body 36 may be a cylinder, and the driving rod 31 is a piston rod. Specifically, the driving body 36 may include a cylinder front cover 361, a cylinder rear cover 362, and a cylinder body, which surround and form a piston chamber, and a piston 313 (as shown in FIG. 8) on the driving rod 31 may be used as a piston in the piston chamber motion.

Specifically, a first air port 328 is provided on the cylinder front cover 361, and a second air port 338 is provided on the cylinder rear cover 362; the air port is a passage for injecting or discharging high-pressure gas in the cylinder, and the drive rod 31 in the cylinder (Piston rod) moves back and forth to dynamically divide the cavity in the cylinder into two parts, which are the rod cavity and the rodless cavity. When the piston rod is pushed forward, the second air port 338 corresponding to the rodless cavity is injected For the high-pressure gas, the first gas port 328 corresponding to the rod cavity releases gas. Conversely, when the piston rod is retracted into the cylinder, the first gas port 328 corresponding to the rod cavity is injected with high-pressure gas, and the second gas port 338 corresponding to the rodless cavity releases gas.

It will be understood that the specific structure and type of the driving device 3 are not limitative. In other embodiments, the driving device 3 may also be a linear displacement device driven by electromagnetic waves, such as a linear motor; any power that can realize linear reciprocating motion The mechanism can be applied to the driving device 3 of the present invention.

In the opening and closing device of an embodiment of the present invention, each driving device 3 is provided with a locking mechanism, the locking mechanism is used to prevent the corresponding pivot arm 2 from performing a pivoting action, so as to open or close the lock In this state, both the pivot arm 2 and the deflector 1 remain stationary. The locking mechanism includes a locking groove provided on the driving lever 31, for example, the first locking groove 311 and the second locking groove 312, and further includes a locking pin provided for the locking groove, for example, corresponding to the first locking The groove 311 is provided with a first locking pin 32, and the second locking pin 33 is provided corresponding to the second locking groove 312. The locking pin may be installed on the driving body 36, for example, at the front and rear ends of the driving body 36, and the locking pin may enter or leave the corresponding locking groove when the corresponding driving rod 31 makes a linear movement, and, in The locking pin prevents the corresponding driving rod 31 from moving when entering the locking slot, thereby preventing the corresponding pivot arm 2 from pivoting relative to the base 4.

Specifically, the first locking pin 32 may be provided on the cylinder front cover 361, and the second locking pin 32 may be provided on the cylinder rear cover 362. In a preferred embodiment, the first air port and the first locking pin 32 are respectively disposed on two surfaces perpendicular to the cylinder front cover 361, and the second air port 338 and the second locking pin 33 are respectively disposed on the cylinder The back cover 362 is on two sides perpendicular to each other. In this way, when the shroud 1 needs to be closed, before injecting high-pressure gas from the second air port 338 to push the piston rod forward substantially, the second locking pin 33 can be pushed away from the second locking groove 312; when the piston rod moves to At a predetermined position, the first locking pin 32 enters the first locking groove 311 and locks the opening and closing device to the closed locking state; conversely, when the shroud 1 needs to be opened, high-pressure gas is injected from the first gas port 328, pushing Before the piston rod moves backward, the high-pressure gas pushes the first locking pin 32 away from the first locking groove 311 to release the locking state of the shroud. When the piston rod moves to the second predetermined position, the second locking pin 33 enters The second locking groove 312 locks the opening and closing device into an open locked state. In this way, the locking operation and unlocking operation are simple and easy to implement.

As an optional embodiment, as shown in FIGS. 5-7, the locking pins (such as the first locking pin 32 and the second locking pin 33) may be provided on the driving body, such as the first locking pin 32 and the second locking pin 33 are provided at the top positions of the cylinder front cover 361 and the cylinder rear cover 362, respectively.

As an optional embodiment, as shown in FIGS. 5-7, the locking mechanism may also be provided with a corresponding reset component for each locking pin. For example, the first locking pin 32 is provided with a reset component 321, and for the first The second locking pin 33 is provided with a reset component 331, which is used to provide a force for the locking pin to enter the locking groove.

Specifically, the

reset component

321 or 331 may include an elastic element (such as a spring) and a pin hole for accommodating the locking pin, a blocking piece is provided at the top of the pin hole, a boss is provided at the lower end of the locking pin, and the elastic element is provided In the pin hole, and between the boss and the baffle. The elastic element is initially in a compressed state, so that the restoring force of the elastic element provides a force for the locking pin to move toward the piston rod 31. When the driving rod 31 moves to a position where the locking groove is coupled with the locking pin, the locking pin (For example, 32) Driven by the force of the reset component, it enters the locking groove (for example, 311), thereby locking the opening and closing device.

The applicant has noticed that when the driving device 3 based on the above example drives the pivoting arm 2 to pivot, the force between the driving lever 31 and the corresponding pivoting arm 2 is quite large, especially the driving lever 31 will be greatly affected The lateral component force perpendicular to the direction of movement of the driving rod 31 makes the driving rod 31 strong enough to withstand the lateral component force, which is not conducive to the lightweight design of the structure; the lateral component force of the driving rod 31 increases At the same time, it will increase the risk of the sealing failure of the cylinder of the drive body 36); if the technical solution described in the background art that connects the drive rod and the sliding pair of the pivot arm (such as the slide rail assembly and the slider assembly) is used, connect the drive rod If the sliding pair between the pivot arm and the pivot arm works under a very strong working condition, it is necessary to increase the strength and weight of the drive rod 31 and enhance the sealing measures of the cylinder; moreover, the locking mechanism based on the above example is used for locking At the same time, the force between the drive lever and the corresponding pivot arm is also quite large. If the sliding pair structure described in the background art is used to realize the connection between the drive lever and the pivot arm, it will also bear a large force And work under very strong working conditions. Therefore, the connection between the driving rod and the pivot arm is realized by the sliding auxiliary structure, which not only complicates the structure of the pivot arm 2 and has high requirements for the sliding pair (for example, high strength and high slip performance are required), Moreover, the reliability of the sliding pair is difficult to guarantee, for example, it is easily damaged and requires frequent maintenance.

For this reason, in the opening and closing device of an embodiment, as shown in FIGS. 2 and 5, one end (front end) of the driving lever 31 is pivotally connected to the corresponding pivot arm 2 (for example, specifically a hinged connection), so that A direct pushing or pulling force is generated on the pivoting arm 2, so that each pivoting arm 2 can be directly driven to pivot relative to the base 4. At the same time, the driving body 36 is pivotally mounted on the base 4, and when the pivoting arm 2 rotates, the driving body 36 can also pivot relative to the base 4 at a small angle, for example. It will be understood that, since the position at which the driving lever 31 and the pivot arm 2 are articulated is unchanged relative to the pivot arm 2, the movement locus of the articulated position when the pivot arm 2 rotates will be an arc, and the swing range of the driving element 3 It only swings between the two ends of the arc top and the arc line (that is, the pivot arm 2 is in the closed position and the open position), therefore, the rotation angle of the drive body 36 relative to the base 4 may be greater than that of the deflector 1 driven by it The opening or closing angle is much smaller.

Specifically, as shown in FIG. 5, a pivot shaft 35 is provided on the drive body 36, for example, the drive body 36 of the left drive device 3 a and the right drive device 3 b is correspondingly provided with a pivot shaft 35, for example, an upper pivot shaft 35S provided on the same axis Corresponding to the lower pivot shaft 35X; correspondingly, the base 4 may be provided with a pivot shaft hole for mounting the upper pivot shaft 35S of the driving body 36 and the lower pivot shaft 35X; the driving body 36 is through the pivot shaft 35 (for example, the lower pivot shaft 35X) It can be pivotally mounted on the base 4. For example, the bracket assembly 8 can be a rectangular frame assembled by bolt connection of the upper mounting plate, the lower mounting plate and the left and right side plates, wherein the upper mounting plate and the lower mounting plate There are pivot shaft holes for mounting the upper pivot shaft 35S and the lower pivot shaft 35X of the drive body 36 respectively. The pivot shaft 35 (for example, the upper pivot shaft 35S and the lower pivot shaft 35X) may be integrally provided on the cylinder body of the drive body 36 , The pivot shaft 35 is pivotally mounted on the pivot shaft hole of the bracket assembly 8 of the base 4; in this way, the drive body 36 can swing horizontally around the pivot shaft hole on the bracket assembly 8, wherein the bracket assembly 8 is fixed to the base by bolt connection 4 on.

Since the driving rod 31 is pivotally connected with the pivot arm 2 (for example, a hinged connection), the pivot arm 2 may not be provided with a sliding pair. For example, the structure of the pivot arm 2 is relatively simple, the cost is low, and the hinge connection The pivotal connection structure is easy to withstand greater forces, even when the pivot arm 2 is locked or when the drive lever 31 drives the pivot arm 2 to pivot, the pivot between the drive lever 31 and the pivot arm 2 The transfer connection structure has good reliability, is not easy to damage, and does not require frequent maintenance operations. In addition, the structure between the drive lever 31 and the pivot arm 2 is stable without the sliding pair, and the shroud is less likely to sway when locked, thereby also improving the reliability of the opening and closing device as a whole . At the same time, the pivoting structure between the driving body 36 and the base 4 is also easy to realize, its reliability is also good, and it is easy to bear the force when the pivoting arm 2 is locked or when the driving lever 31 drives the pivoting arm 2 to pivot; the driving body The pivoting structure between 36 and the base 4 and the driving rod 31 are used in combination with the pivoting connection structure of the pivoting arm 2, which is helpful to reduce the lateral division of the driving rod 31 which is perpendicular to the movement direction of the driving rod 31 The force is conducive to the lightweight design of the structure of the drive rod 31 and reduces the risk of the seal failure of the cylinder of the drive body 36.

Referring to FIGS. 3 and 7, in the closed and locked state, the driving lever 31 is driven forward by the driving force provided or output by the driving body 36 as shown in FIG. 7, and the first locking pin 32 enters the driving lever In the first locking groove 311 at one end of 31, the pivot arm 2 hingedly connected to the other end of the driving rod 31 cannot rotate around the rotation axis 41, and both the pivot arm 2 and the corresponding shroud 1 are locked.

Referring to FIGS. 4 and 6, in the unlocked state, the driving lever 31 is driven by the driving body 36 to move backward as shown in FIG. 6, and the second locking pin 33 enters the second lock at one end of the driving lever 31 In the closed groove 312, the pivot arm 2 hingedly connected to the other end of the driving rod 31 can no longer rotate around the rotation axis 41, and the pivot arm 2 and the corresponding shroud 1 are locked.

Therefore, by controlling the left drive device 3a and the right drive device 3b, it is possible to control the switching between the closed lock state and the open lock state, and the operation is simple. When switching between the closed lock state and the open lock state, when the pivot arm 2 pivots relative to the base 4, the drive device 3 will swing relative to the base 4 about the pivot shaft 35, for example, at a small angle, therefore, no setting is required For example, the sliding pair structure on the pivot arm 2.

In an embodiment, as shown in FIGS. 1 to 4, the opening and closing device further includes a support base 5 and an upper pivot arm 6. One end of the upper pivot arm 6 is fixedly connected to the inner side of the deflector 1, and the other end is The support base 5 is pivotally connected. The upper pivot arm 6 includes an upper left pivot arm 6a corresponding to the left air guide cover 1a and an upper right pivot arm 6b corresponding to the right air guide cover 1b.

It will be understood that in the opening and closing device of the above embodiment, a locking mechanism mainly composed of a locking pin and a locking groove is provided on the driving device 3, and during the driving of the pivot arm 2 by the cylinder, the power of the cylinder itself is used It can realize the actions of opening and closing and locking of the shroud 1 at the same time, and automatically complete the locking and unlocking without the need for a separate locking mechanism or an additional driver. The structure is simple and compact, which greatly saves the shroud 1 The inner space provides a larger internal installation space for the front end of the head, which can be installed and used in the smaller internal space of the front end of the head, so as to adapt to various head shapes, shrouds, and achieve a larger swing angle of the coupler. Therefore, it is suitable for application in a variety of rail vehicles, such as various types of high-speed EMUs. Moreover, the present invention integrates the locking mechanism on the drive device, and only needs to replace the drive device during maintenance, which greatly reduces the maintenance cost. At the same time, the locking operation and unlocking operation are simple, and the reliability of locking is good.

It should be noted that when the opening and closing device uses the pivotal connection between the drive lever 31 and the pivot arm 2 and the drive body 36 is pivotally positioned and installed, the opening and closing device is not limited to using the above-described locking mechanism, For example, the lock mechanism of other embodiments may also bring the same similar effects in terms of good reliability and simple pivot arm structure.

It should be noted that, in the opening and closing state of the opening and closing device shown in FIG. 4, the opening angle of the left shroud 1 a relative to the right shroud 1 b can be set by the first locking groove 311 and the second locking groove 312. To determine the distance between them. The greater the distance between the first locking groove 311 and the second locking groove 312 on the driving rod (such as a piston rod), the greater the opening angle of the left shroud 1a relative to the right shroud 1b. Therefore, it is easy to achieve a larger opening angle of the left shroud 1a relative to the right shroud 1b, and furthermore, the coupler part in the front nose assembly can have a larger swing angle (ie, have a larger swing angle of the coupler). It is beneficial for two-rail vehicles connected by coupler components to travel on a line with a larger track curve.

5 to FIG. 7, in an embodiment, the first locking pin 32 and the second locking pin 33 corresponding to the left driving device 3a are provided with a left locking pin connecting rod 34a, corresponding to the right driving device 3b The first locking pin 32 and the second locking pin 33 are provided with a right locking pin connecting rod 34b.

9 to FIG. 10, in an embodiment, the opening and closing device further includes a manual unlocking mechanism 7. As shown in FIG. 9, the manual unlocking mechanism 7 may include an operation lever 71, an unlock transmission member 72 and a push lever member 73. The operating lever 71 can be manually rotated, for example, a wrench or the like is used to operate one end of the operating lever 71; the unlocking transmission member 72 is fixed to the operating lever 71, and when the operating lever 71 is rotated and operated, it rotates together with the operating lever 71 ; The unlocking transmission member 72 may be, for example, a rounded rectangle or an ellipse with different radial sizes. Of course, the shape of the unlocking transmission member 72 of the present invention is not limited to the above example, as long as it can follow the rotation of the operating lever 71 The shape that moves the push rod member 73 upward is suitable for the present invention.

Specifically, the push rod member 73 may be a rod member having a notch at a substantially central portion, and the left and right ends thereof are in contact with the left locking pin connecting rod 34a and the right locking pin connecting rod 34b, respectively. The end face is in contact with the unlocking transmission member 72. In this way, as shown in FIG. 10, when the operating lever 71 is rotated and operated (for example, in the direction of the arrow shown in FIG. 10(a)), the rotating unlocking transmission member 72 can push the push rod member 73 upward, thereby pushing the left lock The pin connecting rod 34a and the right locking pin connecting rod 34b move upward simultaneously, so that the locking pins 32 or 33 on the left driving device 3a and the right driving device 3b leave the corresponding locking grooves 311 or 312 (if a locking pin In the corresponding locking slot). In this way, the manual unlocking operation of the two locking mechanisms in the left driving device 3a and the right driving device 3b can be realized at the same time by one rotation operation. The manual unlocking operation is simpler, and only one manual unlocking mechanism 7 can be provided (no need for the left The locking mechanisms of the driving device 3a and the right driving device 3b are respectively provided with a manual unlocking mechanism), and the structure is simpler.

Among them, a manual unlocking mechanism 7 may be arranged on the base 4 between the left driving device 3a and the right driving device 3b, occupying a small space inside the air deflector 1.

Specifically, the locking pin connecting rod 34 may be provided as a flat plate, and two ends of the locking pin connecting rod 34 are respectively opened with second holes, and the second holes at both ends of the locking pin connecting rod 34 pass through the first locking The pin 32 and the second locking pin 33 are in contact with the outer boss of the first locking pin 32 and the second locking pin 33, so that the locking pin connecting rod 34 can drive the first through the limit of the outer boss The locking pin 32 and the second locking pin 33 move outward; the first locking pin 32 and the second locking pin 33 can slide or move freely in the second holes at both ends of the locking pin connecting rod 34, thereby achieving When the first locking pin 32 and the second locking pin 33 move by themselves (not when manually unlocked), the locking pin connecting rod 34 is not moved. In addition, a first hole is opened in the middle of the locking pin connecting rod 34 and passes through the upper pivot shaft 35S of the top of the driving body 36, and a corresponding resetting element 351 (for example, left The reset element 351a or the right reset element 351b) and the blocking piece 352 (for example, the

blocking piece

352a or 352b), so that the locking pin connecting rod 34 is opposed to the end 731 of the push rod member (73) and the cylinder ends of the drive body 36 The cover remains pressed down.

Specifically, the left locking pin connecting rod 34a and the right locking pin connecting rod 34b are provided with first holes for positioning and mounting on the upper pivot shaft 35S in the middle position, specifically, the left locking pin connecting rod 34a The right locking pin connecting rod 34b can be fitted on the upper pivot shaft 35S through the first hole, and both ends of the push rod member 73 can also be fitted together on the upper pivot shaft 35S, for example, on both ends of the push rod member 73 The surface can be in contact with the inner surfaces of the left locking pin connecting rod 34a and the right locking pin connecting rod 34b, of course, both ends of the push rod member 73 can also be placed on the left locking pin connecting rod 34a and the right locking pin Above the connecting rod 34b. The left reset element 351a is limited to the upper pivot shaft 35S of the left driving device 3a, its upper end directly or indirectly abuts on the top flap 352 of the upper pivot shaft 35S, and its lower end directly or indirectly with the left locking pin connecting rod 34a Intermittently offset; the right reset element 351b is limited to the upper pivot shaft 35S of the right driving device 3b, its upper end directly or indirectly cancels the stopper 352 on the top of the upper pivot shaft 35S, and its lower end is connected to the right locking pin The rod 34b directly or indirectly counteracts. Thereby, the resetting element can increase, for example, the downward force for resetting the latch connecting rod 34.

In one embodiment, the left and right ends of the push rod member 73 are pivotally connected with the pivot shaft 35 (for example, the upper pivot shaft 35S) at the upper end of the drive body 36, so that when the drive body 36 swings around the pivot shaft 35, the push rod The part 73 can remain stationary. The upper surfaces of the left and right ends of the push rod member 73 are in contact with the inner surface of the lock pin connecting rod 34, and when the push rod member 73 is moved upward, the lock

pin connecting rods

34a and 34b can be pushed to move upward simultaneously, and, at the lock pin Under the action of the reset element 351 above the connecting

rods

34a and 34b, the push rod member 73 can be reset during normal locking operation (ie, non-manual unlocking operation), and pressed down against the unlocking transmission member 72.

In an embodiment, as shown in FIG. 9, in order to better support the unlocking transmission member 72 and the operating lever 71, the manual unlocking mechanism 7 further includes a supporting assembly for supporting the operating lever 71, which may include a front Support assembly 76 and rear support assembly 75.

In an embodiment, as shown in FIG. 9, the manual unlocking mechanism 7 further includes a rotation limit assembly 74 that is fixedly connected to the operation lever 71 for limiting the rotation angle of the operation lever 71. The shape of the rotation limiting component includes but is not limited to the diamond-shaped structure shown in FIG. 1. The operating end of the operating lever 71 can be set to a hexagonal structure, which is convenient for manual operation. The manual unlocking end of the opening and closing device is generally provided at the end of the operating lever 71 close to the front of the vehicle, and extends out of the body of the vehicle to facilitate operation.

When the manual unlocking mechanism 7 of the above example is used for manual unlocking, the following process is included:

As shown in FIG. 10(a), by using, for example, a wrench to rotate the operation end provided on the operation lever 71, the operation lever 71 rotates clockwise, for example, and the unlocking transmission member 72 also rotates synchronously. Push the push rod member 73 to move upward, thereby driving the locking pin connecting rods 34 at the left and right ends to move the first locking pin 32 away from the first locking groove 311, and the second locking pin 33 to leave the second locking The slot 312 realizes manual unlocking, that is, enters the state shown in FIG. 10(b). Moreover, after the manual unlocking is completed, the operation end of the operation lever 71 is operated to cause the operation lever 71 to rotate, for example, in a counterclockwise direction, and by the action of the reset element 351, the lock pin connecting lever 34 and the pusher member 73 can be made After resetting to the state as shown in Fig. 10(a), the opening and closing device can continue the normal opening or closing operation.

11 is a schematic diagram of a manual unlocking mechanism in an opening and closing device according to still another embodiment of the present invention. For clarity of description, the following mainly exemplifies only the difference between the opening and closing device of FIG. 11 and the opening and closing device of FIGS. 7 and 10, which is mainly reflected in the manual unlocking mechanism.

As shown in FIG. 11, in order to more conveniently maintain the driving device 3 (for example, the left driving device 3 a and the right driving device 3 b ), it discloses yet another type between the push rod member 73 and the locking pin connecting rod 34 The transmission mode is an unlock transmission mode that indirectly drives the locking pin connecting rod 34 to move upward. Specifically, the manual unlocking mechanism further includes

brackets

732a and 732b respectively provided under both ends 731 of the push rod member 73. The bracket 732 is connected to both ends 731 of the push rod member 73 and forms a limited space (for example Clearance), for example, both end portions 731 of the push rod member 73 are connected to the supporting rod 732 by bolt connection (double bolt connection) and configured to form a limited space through which the locking pin connecting rod 34 passes. In this way, when the push rod member 73 moves upward, the push rod 731 can drive the supporting rod 732 to move upward, thereby driving the locking pin connecting rod 34 to move upward together, and the unlocking operation of the cylinder can also be achieved.

The manual unlocking mechanism 7 in the above example can simultaneously unlock the left and right locking mechanisms at the same time. It is only necessary to provide one manual unlocking mechanism 7. The structure is simple, easy to operate, and easy to maintain.

The above examples mainly illustrate the opening and closing device of the present invention and the front nose assembly using the same. Although only some of the embodiments of the present invention have been described, those of ordinary skill in the art should understand that the present invention can be implemented in many other forms without departing from the gist and scope thereof. Therefore, the examples and embodiments shown are to be regarded as illustrative rather than restrictive, and the present invention may cover various modifications without departing from the spirit and scope of the present invention as defined by the appended claims. And replace.

Claims

An opening and closing device for a diversion cover of a rail vehicle, which includes:

A pivoting arm (2), the first end of which is fixedly connected to the inside of the deflector (1), and the second end of which is pivotally connected to the base (4); and

A driving device (3) for driving the pivoting arm (2) to pivot relative to the base (4);

Wherein, the driving device (3) includes a driving body (36) and a driving rod (31), the first end of the driving rod (31) enters the driving body (36) and the driving rod (31) can Moving under the action of the driving force provided by the driving body (36) to realize the pivoting of the pivoting arm (2) relative to the base (4);

It is characterized in that the second end of the driving rod (31) is pivotally connected to the pivoting arm (2), and the driving body (36) is pivotally mounted on the base (4).
The opening and closing device according to claim 1, characterized in that the driving body (36) is provided with a pivot shaft (35S, 35X), and the driving body (36) passes through the pivot shaft (35S, 35X) It is pivotally mounted on the base (4).
The opening and closing device according to claim 2, characterized in that the driving device (3) surrounds the pivot axis (35S, 35X) when the pivot arm (2) pivots relative to the base (4) ) Swing relative to the base (4).
The opening and closing device according to claim 2, characterized in that the pivot shaft (35S, 35X) is pivotally mounted on the bracket assembly (8) of the base (4).
The opening and closing device according to claim 1, characterized in that a locking mechanism is provided on the driving device (3), and the locking mechanism includes a locking groove (311, 312) provided on the driving lever (31) And locking pins (32, 33) provided on the driving body (36) corresponding to the locking grooves (311, 312).
The opening and closing device according to claim 5, wherein the locking groove (311, 312) includes a first locking groove (311) and a second locking groove (312), and the driving body (36) The first locking pin (32) and the second locking pin (33) located on both sides of the pivot shaft (35S, 35X) are provided; the first locking pin (32) enters the first lock When the slot (311) is closed, the opening and closing device is in a closed locking state, and when the second locking pin (33) enters the second locking slot (312), the opening and closing device is in an open locked state.
The opening and closing device according to claim 6, characterized in that the drive body (36) is a cylinder, and the drive rod (31) is a piston rod;

Wherein, the cylinder includes a cylinder front cover (361), a cylinder rear cover (362) and a cylinder body, and the cylinder front cover (361) and the cylinder rear cover (362) are respectively provided with The first air port (328) and the second air port (338) of the channel.
The opening and closing device according to claim 7, characterized in that the first locking pin (32) is provided on the cylinder front cover (361), and the second locking pin (33) is provided on the On the cylinder rear cover (362);

By arranging the positions of the first locking pin (32) and the first gas port (328) on the cylinder front cover (361), so that high pressure gas is injected from the first gas port (328) to push the The drive rod (31) can push the first locking pin (32) away from the first locking groove (311) before moving substantially backward; and/or

By arranging the positions of the second locking pin (33) and the second air port (338) on the cylinder rear cover (361), so that high pressure gas is injected from the second air port (338) to push the The driving rod (31) can push the second locking pin (33) away from the second locking groove (312) before moving forward substantially.
The opening and closing device according to claim 1, characterized in that the pivot arm (2) includes a left pivot arm (2a) and a right pivot arm (2b), and the drive device (3) includes a corresponding The left driving device (3a) provided for the left pivot arm (2a) and the right driving device (3b) provided for the right pivot arm (2b);

Wherein, the first locking pin (32) and the second locking pin (33) corresponding to the left driving device (3a) are provided with a left locking pin connecting rod (34a); corresponding to the right driving device (3b) The first locking pin (32) and the second locking pin (33) are provided with a right locking pin connecting rod (34b).
The opening and closing device according to claim 6, characterized in that the pivot arm (2) includes a left pivot arm (2a) and a right pivot arm (2b), and the drive device (3) includes a corresponding The left driving device (3a) provided for the left pivot arm (2a) and the right driving device (3b) provided for the right pivot arm (2b);

Wherein, the first locking pin (32) and the second locking pin (33) corresponding to the left driving device (3a) are provided with a left locking pin connecting rod (34a); corresponding to the right driving device (3b) The first locking pin (32) and the second locking pin (33) are provided with a right locking pin connecting rod (34b).
The opening and closing device according to any one of claims 6 to 10, characterized in that the opening and closing device further comprises a manual unlocking mechanism (7), which comprises:

Operating lever (71);

An unlocking transmission member (72) fixed on the operation lever (71); and

Both ends of the push rod component (73) can drive the left locking pin connecting rod (34a) and the right locking pin connecting rod (34b) to move upward;

Wherein, when the operation lever (71) is rotated and operated, the rotating unlocking transmission member (72) can push the pusher member (73) to move upward, thereby pushing the left locking pin connecting rod (34a) And the right locking pin connecting rod (34b) moves upwards so that the locking pins (32, 33) on the left driving device (3a) and the right driving device (3b) leave the corresponding locking Slot (311,312).
The opening and closing device according to claim 11, characterized in that both ends of the push rod member (73) are pivotally mounted on the left driving device (3a) and the right driving device (3b), respectively The upper pivot axis (35S, 35X) on the upper pivot axis (35S).
The opening and closing device according to claim 12, characterized in that the left locking pin connecting rod (34a) and the right locking pin connecting rod (34b) are provided at intermediate positions for positioning and installation at The first hole on the upper pivot shaft (35S).
The opening and closing device according to claim 11 or 13, wherein both ends of the left locking pin connecting rod (34a) and the right locking pin connecting rod (34b) are provided for passing through The second holes of the first locking pin (32) and the second locking pin (33), and the left locking pin connecting rod (34a) and the right locking pin connecting rod (34b) are both It is limited by the outer bosses of the first locking pin (32) and the second locking pin (33).
The opening and closing device according to claim 11 or 14, characterized in that, corresponding to the push rod member (73), a left locking pin connecting rod (34a) and a right locking pin connecting rod (34a) are provided 34b) and the reset member (351) for resetting the push rod member (73).
The opening and closing device according to claim 15, characterized in that the reset element (351) is limited to the pivot axis (35S, 35X of the left drive device (3a) and the right drive device (3b) ) On the upper pivot shaft (35S), the upper end of which directly or indirectly abuts the baffle plate (352) on the top of the upper pivot shaft (35S), and the lower end of the upper locking shaft (35S) or The right locking pin connecting rod (34b) directly or indirectly abuts.
The opening and closing device according to claim 11, characterized in that the manual unlocking mechanism (7) is one which is arranged between the left driving device (3a) and the right driving device (3b) On the base (4).
The opening and closing device according to claim 11, wherein the unlocking transmission member (72) has a rounded rectangular shape or an elliptical shape.
The opening and closing device according to claim 11, characterized in that the manual unlocking mechanism (7) further comprises: brackets (732) respectively provided below the ends of the push rod of the push rod member (73); Wherein, the supporting rod (732) and the two ends (731) of the push rod part (73) are connected together to form a limited space, and the locking pin connecting rod (34) passes through the limited space.
The opening and closing device according to claim 1, characterized in that the pivotal connection between the second end of the driving rod (31) and the pivoting arm (2) is a hinged connection.
A front nose assembly, including a deflector (1) and a coupler component disposed inside the deflector (1), characterized in that it further includes any one of claims 1-20 Opening and closing device.