A rail vehicle head opening and closing device

Abstract

The invention discloses a rail vehicle head opening and closing device, comprising a flexible mask, a plurality of connecting rod assemblies, a coupler, a first bracket for mounting the connecting rod assemblies and a second bracket for mounting the coupler, wherein the bottom end of the flexible mask is fixedly mounted on the head of the vehicle; the first bracket is mounted on the coupler through a fastener; the flexible mask comprises a cover body and a four-part cover at one end of the cover body which can be unfolded outwardly and in all directions, and the four-part cover matches with one end of the cover body when buckled; the connecting rod assembly comprises a guide rod, a slide rod and a telescopic cylinder, and the guide rod is hinged with the slide rod. The invention has a simple structure and does not require manual operation of the opening and closing device. In a natural state, the elastic member is in an extended and relaxed state. When two vehicles are coupled, the opening and closing devices at the heads of the two vehicles can automatically open or close the end cover tops and pop out the vehicle structure bracket through the compression of the elastic member through the combined use of the interaction force and the flexible mask-connecting rod assembly-coupler, thereby facilitating the docking of the couplers at the heads of the two vehicles, completing the coupling operation, and conveniently performing the uncoupling operation.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicles, and in particular relates to a rail vehicle head opening and closing device. Background Art

[0002] Currently, existing high-speed trains, low-floor trains, and monorail vehicles are all equipped with opening and closing devices, the main purpose of which is to reduce aerodynamic resistance or streamlined integrated appearance. When the vehicles are coupled, the front-end opening and closing mechanism of the rail vehicle opens the opening and closing cover located at the head of the rail vehicle to expose the coupler installed in the head of the rail vehicle, and the coupler is used to achieve rail vehicle docking and towing when the vehicle is stopped for maintenance.

[0003] The existing opening and closing mechanisms all require the setting of corresponding power structures or manual operation to open and close the opening and closing mechanisms. The existing hood opening and closing mechanisms utilize the wind pressure force of the cylinder and the spring preload force to realize the locking function of the hood opening and closing mechanism. However, when the cylinder loses air or the spring ages, the locking function is prone to fail, making the hood opening and closing mechanism prone to the risk of abnormal opening. The power device and locking device are complex in structure, high in cost and high in failure rate.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgement or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0005] In order to solve the problems in the above-mentioned prior art, the present invention provides a rail vehicle front opening and closing device, which has a simple structure and does not require manual operation of the opening and closing device. When two vehicles are coupled, the opening and closing devices at the front of the two vehicles can conveniently extend the couplers of the two vehicles through the interaction force and the combination of the flexible mask-connecting rod assembly-coupler, thereby realizing subsequent locking of the couplers.

[0006] The present invention is achieved by adopting the following technical solutions:

[0007] A rail vehicle head opening and closing device comprises a flexible mask, a plurality of connecting rod assemblies, a coupler, a first bracket for mounting the connecting rod assemblies and a second bracket for mounting the coupler, wherein the bottom end of the flexible mask is fixedly mounted on the head of the vehicle, and the interior of the top end is fixedly connected to the connecting rod assembly; the first bracket is mounted on the coupler through a fastener;

[0008] The flexible mask comprises a mask body and a flexible four-part cover which can be unfolded outwardly at one end of the mask body, and the four-part cover matches with one end of the mask body when buckled;

[0009] The connecting rod assembly includes a guide rod, a sliding rod and a telescopic cylinder. One end of the guide rod is hinged to one end of the sliding rod. The guide rod is movably mounted on the second bracket through a pin shaft. The guide rod can generate relative movement with the second bracket along its own length direction through the pin shaft. The other end of the sliding rod is mounted in the telescopic cylinder and can perform telescopic movement along the length direction of the telescopic cylinder. The telescopic cylinder is fixedly mounted on the first bracket. An elastic member is fixedly mounted in the telescopic cylinder, and the elastic member is fixedly connected to the sliding rod.

[0010] Furthermore, the connecting rod assembly also includes a fixed plate, a balance rod and a reinforcing rod. The fixed plate is arranged between the inner side surface of the quarter cover and the guide rod, one side of which is fixedly installed on the inner side surface of the quarter cover, and the other side is hinged to the guide rod; the balance rod is arranged parallel to the guide rod, one end of which is hinged to the fixed plate, and the other end of which is hinged to the reinforcing rod; the other end of the reinforcing rod is installed at the hinge of the guide rod and the sliding rod, and the position of the reinforcing rod and the sliding rod is fixed and kept vertical.

[0011] Furthermore, the first bracket is a regular hexagon, and six groups of connecting rod assemblies are provided, and each group of connecting rod assemblies is evenly fixed at six vertices of the first bracket.

[0012] Furthermore, the four-part cover includes a symmetrical upper part cover and a lower part cover and a symmetrical left part cover and a right part cover, the inner side surfaces of the upper part cover and the lower part cover are respectively fixedly connected to one end of the guide rod of the two groups of connecting rod assemblies, and the inner side surfaces of the left part cover and the right part cover are respectively fixedly connected to one end of the guide rod of one group of connecting rod assemblies.

[0013] Furthermore, a slide groove is formed inside the guide rod along the length direction, and the pin shaft is limited in the slide groove.

[0014] Furthermore, the cover body is a step platform with a regular quadrilateral bottom surface, and the lower bottom surface is fixed to the front of the vehicle through a flange.

[0015] Furthermore, the telescopic cylinder includes a cylinder body and a tailstock, a circular opening is opened at one end of the cylinder body, and the slide rod extends into the cylinder body through the circular opening; the tailstock is detachably mounted on the other end of the cylinder body, and the elastic member is fixedly mounted on the tailstock.

[0016] Furthermore, the elastic member is a spring.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0018] (1) The present invention has a simple structure and does not require manual operation of the opening and closing device. In the natural state, the elastic member is in an extended and relaxed state. When the two vehicles are coupled, the opening and closing devices at the front of the two vehicles can automatically open or close the end cover top and pop out the second bracket through the compression of the elastic member and the combined use of the flexible mask-connecting rod assembly-coupler, thereby facilitating the docking of the couplers at the heads of the two vehicles and completing the coupling operation. The uncoupling operation can also be conveniently performed through the extension of the elastic member;

[0019] (2) The four flexible covers at the top, bottom, left and right can be easily stretched outward to open to expose the inner hook and stretched inward to close and cover the hook, preventing the components at the front of the vehicle from being directly exposed to the vehicle body for a long time and being corroded, thereby effectively extending the service life of the hook 3 at the front of the vehicle and effectively improving the operating stability of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the opening and closing device in Example 1;

[0021] Figure 2 This is a diagram of the internal structure of the opening and closing device in Example 1;

[0022] Figure 3 This is an internal structure diagram of the opening and closing device in another direction in Example 1;

[0023] Figure 4 This is the overall structural diagram of the connecting rod assembly in Example 1;

[0024] Figure 5 This is a structural diagram of the connecting rod assembly in Example 1 after being disassembled;

[0025] Figure 6 This is a structural diagram of the connecting rod assembly in embodiment 1 when it is connected;

[0026] Figure 7 This is a structural diagram of the state of the flexible mask in embodiment 1 when it is connected;

[0027] Figure 8 This is a structural diagram of the flexible mask in Example 1 after being unpacked.

[0028] In the figure: a flexible mask 1; a mask body 11; a quarter cover 12;

[0029] Connecting rod assembly 2; guide rod 21; slide groove 211; slide rod 22; telescopic cylinder 23; cylinder body 231; tailstock 232; pin 24; elastic member 25; fixing plate 26; through hole 261; balance rod 27; reinforcing rod 28;

[0030] Coupler 3;

[0031] First bracket 4; Connecting member 41;

[0032] The second bracket 5;

[0033] Flange 6. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example

[0037] This embodiment provides a rail vehicle head opening and closing device, such as Figure 1 As shown, the flexible mask 1 includes a plurality of connecting rod assemblies 2, a coupler 3, a first bracket 4 for mounting the connecting rod assemblies 2, and a second bracket 5 for mounting the coupler 3. The bottom end of the flexible mask 1 is fixedly mounted on the front of the vehicle through a flange 6, and the interior of the top end is fixedly connected to the connecting rod assembly 2; the first bracket 4 is fixedly mounted on the front end of the vehicle through a flange 6. Figure 2 The connection member 41 shown is connected to the mounting point of the coupler to ensure that the first bracket 4 is reliably mounted on the coupler 3. The flexible mask 1 includes a mask body 11 and a four-part cover 12 at one end of the mask body 11 that can be unfolded outwards and around, and the four-part cover 12 matches with one end of the mask body 11 when buckled, and the inner side of the four-part cover 12 is connected and fixed to the connecting rod assembly 2 by bolts, and the fixing method is not limited to this, and other methods that can achieve connection and fixing are all acceptable.

[0038] In this embodiment, Figure 3As shown, the connecting rod assembly 2 includes a guide rod 21, a slide rod 22 and a telescopic cylinder 23. One end of the guide rod 21 is hinged to one end of the slide rod 22. The guide rod 21 is movably mounted on the second bracket 5 through a pin 24. The guide rod 21 can generate relative movement with the second bracket 5 along its own length direction through the pin 24. The other end of the guide rod 21 is fixedly connected to the inner side of the quarter cover; the other end of the slide rod 22 is installed in the telescopic cylinder 23 and can perform telescopic movement along the length direction of the telescopic cylinder 23. The telescopic cylinder 23 is fixedly mounted on the first bracket 4, and an elastic member 25 is fixedly installed in the telescopic cylinder 23, and the elastic member 25 is fixedly connected to the slide rod 22.

[0039] In actual use, the pin 24 and the second bracket 5 are stationary relative to the coupler 3. When the two vehicles are coupled, Figure 7 As shown, the two car heads are pressed against each other, and the quarter cover 12 at the end of the flexible mask 1 is opened outward due to the pressure, and the guide rod 21 connected to the inner side of the quarter cover 12 moves with the quarter cover 12, and at the same time pushes the guide rod 21 to move along the pin 24, exposing the second bracket 5 and the coupler 3 inside, which is convenient for the two car coupling operation; when the two cars are uncoupled, as shown in FIG. Figure 8 As shown, under the action of the elastic member 25, the slide bar 22 pushes the guide bar 21 to move forward and rotate inward, thereby rotating the quarter cover 12 inward to present a closed state. The present invention has a simple structure, and does not require manual operation of the opening and closing device. In the natural state, the elastic member 25 is in an extended and relaxed state. When two vehicles are coupled, through the compression of the elastic member 25, the opening and closing devices at the head of the two vehicles can automatically open or close the end cover top through the interaction force and the combination of the flexible mask 1-connecting rod assembly 2-coupler 3, and pop out the vehicle structure bracket, so as to facilitate the docking of the coupler 3 at the head of the two vehicle bodies, thereby completing the coupling operation, and the uncoupling operation can be conveniently performed through the extension of the elastic member 25.

[0040] In this embodiment, Figure 3As shown, the first bracket 4 is a regular hexagon, and the connecting rod assembly 2 is provided with six groups, and each group of connecting rod assemblies 2 is evenly fixed at the six vertices of the first bracket 4. At the same time, the four-part cover 12 includes a symmetrical upper part cover and a lower part cover and a symmetrical left part cover and a right part cover, and the inner side surfaces of the upper part cover and the lower part cover are respectively fixedly connected to one end of the guide rod 21 of the two groups of connecting rod assemblies 2, and the inner side surfaces of the left part cover and the right part cover are respectively fixedly connected to one end of the guide rod 21 of one group of connecting rod assemblies 2. The number of connecting rod assemblies 2 and the number of part covers of the flexible mask 1 are not limited to this, as long as the flexible mask 1 can be opened smoothly and labor-saving. The installation method of the connecting rod assembly 2 of this structure can greatly improve the stability of the entire opening and closing device, so that the upper, lower, left and right four parts can be conveniently stretched outward to open and expose the internal hook 3 and stretched inward to close and cover the hook 3, so as to prevent the various components at the front of the vehicle from being directly exposed to the body for a long time and corroded, and effectively extend the service life of the hook 3 at the front of the vehicle.

[0041] In this embodiment, in order to ensure the linkage between the quarter cover 12-guide rod 21-slide rod 22 (or pin 24), it is ensured that the second bracket 5 and the internal vehicle coupler 3 can be easily and labor-savingly exposed when the vehicle is coupled and the connection toughness between the quarter cover 12 and the guide rod 21 is ensured. Figure 4 As shown, a fixing plate 26 is arranged between the inner side surface of the quarter cover 12 and the guide rod 21, and the fixing plate 26 is fixedly installed on the inner side surface of the quarter cover 12 by bolts and through holes 261 on the fixing plate 26, and a balancing rod 27 parallel to the guide rod 21 is arranged between the fixing plate 26 and the other end of the guide rod 21, and the fixing plate 26 and the balancing rod 27 as well as the fixing plate 26 and the guide rod 21 are fixed in a hinged manner, and a reinforcing rod 28 is additionally installed at the hinge of the guide rod 21 and the slide rod 22, and the reinforcing rod 28 is fixed to the slide rod 22 and kept vertical, and the other end of the reinforcing rod 28 is hinged to the balancing rod 27, and the fixing plate 26, the balancing rod 27, the reinforcing rod 28, and the guide rod 21 form a parallelogram structure, which can ensure that the fixing plate 26 and the slide rod 22 are in a vertical state, and ensure that the quarter cover 12-guide rod 21 can more conveniently drive the slide rod 22 to move in the telescopic cylinder 23 when subjected to force.

[0042] In order to conveniently control the opening and closing of the entire opening and closing device through the mutual movement of the guide rod 21 and the pin 24, in this embodiment, a slide groove 211 is opened inside the guide rod 21 along the length direction, and the pin 24 is limited in the slide groove 211; and the cover body 11 is a step with a quadrilateral bottom surface, and the lower bottom surface is fixed to the front of the vehicle through a flange. During relative movement, the position of the pin 24 is fixed, and the guide rod 21 slides on the pin 24 through the slide groove 211, thereby driving the movement of the entire device. Figure 5 and Figure 6As shown, when the connecting rod assembly 2 is in a natural state, the pin 24 is located at the right end of the guide rod 21 slot 211, and the guide rod 21 and the slide rod 22 have a certain angle. At this time, the quarter cover 12 at the end of the flexible mask 1 presents Figure 5 In the closed state shown, the elastic member 25 is in a relaxed state; when the two locomotives generate mutual force, the extrusion force inside the two locomotives squeezes the four-part cover 12. Since the four-part cover 12 has a tendency to move outward, the four-part cover 12 drives the guide rod 21 to move inward under the action of the extrusion force. At this time, the guide rod 21 will rotate clockwise along the pin 24 for a certain angle, so that the pin 24 is located at the left end of the slide slot 211. At this time, the guide rod 21 squeezes the hinged slide rod 22 to the right side (i.e., the inside), so that the elastic member 25 is in a compressed state until the second bracket 5 and the coupler 3 inside are exposed, which facilitates the locking of the coupler 3 and the coupling operation of the two vehicles. When the uncoupling operation is required, the two couplers 3 are disengaged, and the two coupled vehicle bodies move in opposite directions, and the extrusion force disappears. Figure 4 As shown, under the reaction force of the elastic member 25, the potential energy generated by the compression is converted into kinetic energy, the slide rod 22 partially slides out of the telescopic cylinder 23 to the left (i.e., the outside), and drives the hinged guide rod 21 to move counterclockwise along the pin 24, the left end of the guide rod 21 extends outward, and drives the four-part cover 12 to move inward respectively, until Figure 6 In the closed state, the pin 24 is located at the right end of the guide rod 21, and the elastic member 25 is in a relaxed natural state. Through experiments, the present invention can obtain good applicability on the 35-type and 330-type couplers of automatic hooking.

[0043] In the actual working process, in order to ensure the normal operation of the elastic member 25 in the telescopic cylinder 23 and facilitate the later maintenance, disassembly, assembly and replacement, the elastic member 25 is a spring, but not limited to this, other types of elastic members 25 such as gas springs or hydraulic telescopic cylinders can also be used. Figure 5 and Figure 6 As shown, the sliding cylinder includes a cylinder body 231 and a tailstock 232. A circular opening is opened at one end of the cylinder body 231, and the slide rod 22 extends into the cylinder body 231 through the circular opening; the tailstock 232 is detachably mounted on the other end of the cylinder body 231, and the elastic member 25 is fixedly mounted on the tailstock 232. This structure can effectively detachably mount the elastic member 25 in the telescopic cylinder 23 through the tailstock 232, which is convenient for installation, disassembly, maintenance and replacement operations.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rail vehicle head opening and closing device, characterized in that: It includes a flexible mask, multiple groups of connecting rod assemblies, a coupler, a first bracket for mounting the connecting rod assemblies, and a second bracket for mounting the coupler, wherein the bottom end of the flexible mask is fixedly mounted on the front of the vehicle, and the interior of the top end is fixedly connected to the connecting rod assembly; the first bracket is mounted on the coupler through a fastener; The flexible mask comprises a mask body and a flexible four-part cover which can be unfolded outwardly at one end of the mask body, and the four-part cover matches with one end of the mask body when buckled; The connecting rod assembly includes a guide rod, a slide rod and a telescopic cylinder. One end of the guide rod is hinged to one end of the slide rod. The guide rod is movably mounted on the second bracket through a pin shaft. The guide rod can generate relative movement with the second bracket along its own length direction through the pin shaft. The other end of the slide rod is mounted in the telescopic cylinder and can perform telescopic movement along the length direction of the telescopic cylinder. The telescopic cylinder is fixedly mounted on the first bracket. An elastic member is fixedly mounted in the telescopic cylinder, and the elastic member is fixedly connected to the slide rod. The connecting rod assembly also includes a fixing plate, a balancing rod and a reinforcing rod. The fixing plate is arranged between the inner side of the quarter cover and the guide rod, one side of the fixing plate is fixedly mounted on the inner side of the quarter cover, and the other side is hinged to the guide rod; the balancing rod is arranged parallel to the guide rod, one end of the fixing plate is hinged to the fixing plate, and the other end is hinged to the reinforcing rod; the other end of the reinforcing rod is installed at the hinge of the guide rod and the sliding rod, and the reinforcing rod is fixed and kept vertical to the sliding rod; The four-part cover includes a symmetrical upper part cover and a lower part cover and a symmetrical left part cover and a right part cover. The inner side surfaces of the upper part cover and the lower part cover are respectively fixedly connected to one end of the guide rod of the two groups of connecting rod assemblies, and the inner side surfaces of the left part cover and the right part cover are respectively fixedly connected to one end of the guide rod of one group of connecting rod assemblies.

2. The rail vehicle head opening and closing device according to claim 1, characterized in that: The first bracket is a regular hexagon, and six groups of connecting rod assemblies are provided, and each group of connecting rod assemblies is evenly fixed at six vertices of the first bracket.

3. The rail vehicle head opening and closing device according to claim 1, characterized in that: A slide groove is formed inside the guide rod along the length direction, and the pin shaft is limited in the slide groove.

4. The rail vehicle head opening and closing device according to claim 1, characterized in that: The cover body is a stepped platform with a quadrilateral bottom surface, and the lower bottom surface is fixed to the front of the vehicle through a flange.

5. The rail vehicle head opening and closing device according to claim 1, characterized in that: The telescopic cylinder comprises a cylinder body and a tailstock. A circular opening is opened at one end of the cylinder body, and the slide rod extends into the cylinder body through the circular opening. The tailstock is detachably mounted at the other end of the cylinder body, and the elastic member is fixedly mounted on the tailstock.

6. The rail vehicle head opening and closing device according to claim 1, characterized in that: The elastic member is a spring.

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