Inner end door of high-speed railway motor train unit

Abstract

The utility model relates to the technical field of motor train unit inner end doors, in particular to a high-speed railway motor train unit inner end door which comprises a driving vehicle frame, grooves are formed in the top and the bottom of the inner wall of the driving vehicle frame, shock absorbers are fixedly installed on the inner walls of the grooves, one ends of the shock absorbers are fixedly connected with guide wheels, and the other ends of the shock absorbers are fixedly connected with the guide wheels. An inner end door plate is placed in the driving vehicle frame, guide limiting grooves are formed in the top and the bottom of the inner end door plate correspondingly, the inner walls of the guide limiting grooves are in rolling connection with the surfaces of guide wheels, and a first electric air cylinder is fixedly installed on the side face of the inner end door plate located on the right side. According to the structure, inner end door storage and output distance positioning are carried out in the driving car frame, the opening and closing degree of the inner end door can be automatically controlled, the position connected with the inner end door is movably arranged, the shaking influence on the inner end door in the running process of the bullet train can be reduced, and the safety of the bullet train is improved. The effect that the size of the positioning switch of the inner end door in the motor train unit can be controlled is achieved.

Description

Technical Field

[0001] The utility model relates to an inner end door of a high-speed railway EMU, belonging to the technical field of inner end doors of EMUs. Background Art

[0002] EMUs offer high speed, high energy efficiency, high comfort, and high safety, bringing great convenience to people's travel. Door systems are a crucial component of EMUs and can be divided into several types, based on their distribution area: side sliding doors, driver's cab doors, inner end doors, and outer end doors. Inner end doors separate the passenger compartment from the platform area. Electric inner end doors are widely used on EMUs due to their fast opening and closing speed, low noise, and safety and reliability.

[0003] For example, patent publication number CN201920288595.3 discloses a protective end door for a motor vehicle, comprising a door body that slides on the train and a guide rail at the bottom of the door body. The bottom of the door body has a stop assembly mounting portion, the stop assembly mounting portion defines a stop assembly mounting cavity, and a stop assembly that acts on the guide rail is mounted in the stop assembly mounting cavity. The stop assembly includes a hydraulic transmission structure and a friction unit at the output end of the hydraulic transmission structure.

[0004] Since the above-mentioned protective end doors are guided, moved and opened and closed by sliding rails, the inner end doors at the connection between the carriages will be affected by the shaking of the moving EMU carriages. In the long run, this may cause the inner end doors to derail from the guide rails, indirectly reducing the installability of the inner end doors at the connection between the carriages and bringing certain adverse effects to actual use. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of the present utility model is to provide an inner end door of a high-speed railway EMU. The present utility model can automatically control the opening and closing size of the inner end door by arranging a driving vehicle frame to store the inner end door and output distance positioning, and can also make movable settings at the connected inner end door, thereby reducing the shaking effect on the inner end door caused by the EMU during travel, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A high-speed railway EMU inner end door comprises a driving frame, wherein grooves are provided at the top and bottom of an inner wall of the driving frame, a shock absorber is fixedly mounted on the inner wall of the groove, one end of the shock absorber is fixedly connected to a guide wheel, an inner end door panel is placed inside the driving frame, guide limit grooves are provided at the top and bottom of the inner end door panel, the inner wall of the guide limit groove is rollingly connected to the surface of the guide wheel, an electric cylinder 1 is fixedly mounted on the side of the right inner end door panel, an output end of the electric cylinder 1 is fixedly connected to a constraint plate, a surface of the inner end door panel near the middle is fixedly connected to a buffer pad, one side of the buffer pad is fixedly connected to a docking door panel with a movable groove, a side of the docking door panel is connected to a locking assembly, a side of the left inner end door panel is fixedly connected to a wrapping constraint frame, a surface of the inner wall of the wrapping constraint frame is fixedly connected to a spring telescopic rod, one end of the spring telescopic rod is fixedly connected to an anti-collision plate, a surface of the anti-collision plate is fixedly connected to a force unloading cushion, and the wrapping constraint frame is located on the side of the constraint plate.

[0008] Furthermore, a second electric cylinder is fixedly mounted on the surface of the inner wall of the driving frame, and a stop plate is fixedly connected to the output end of the second electric cylinder.

[0009] Furthermore, a non-slip pad is fixedly connected to the surface of the stop plate, and the surface of the non-slip pad is coated with a wear-resistant coating.

[0010] Furthermore, the locking assembly includes a magnetic locking plate 1 and a magnetic locking plate 2, the magnetic locking plate 1 is fixedly connected to the left docking door panel, and the magnetic locking plate 2 is fixedly connected to the right docking door panel, and the surface of the magnetic locking plate 2 and the surface of the magnetic locking plate 1 are abutted by electromagnetic attraction.

[0011] Furthermore, an elastic dust cover is fixedly connected to the side surface of the inner end door panel near its end surface, one side of the elastic dust cover is fixedly connected to the side surface of the docking door panel, and the inside of the elastic dust cover is sleeved on the outside of the buffer plate.

[0012] Furthermore, an anti-slip locking groove is provided on the side of the driving frame near one end, and an anti-slip locking plate is fixedly connected to the side of the docking door panel near one end, and the surface of the anti-slip locking plate and the inner wall of the anti-slip locking groove are connected by electromagnetic suction.

[0013] Furthermore, a distance sensor is fixedly mounted on one end of the driving frame close to the inner wall thereof, and the distance sensor is vertically located just below and just below the inner end door panel.

[0014] The beneficial effects of the utility model are:

[0015] 1. In the present invention, the driving frame is installed inside the high-speed railway carriage. If the inner door needs to be stored and opened normally, the anti-slip locking plate on the docking door panel can be inserted into the inner wall of the anti-slip locking groove to form a magnetic locking positioning and clamping effect, thereby completing the position adjustment of the inner door panel inside the driving frame.

[0016] 2. In the present invention, the driving frame is installed in the interior of the high-speed railway carriage. If it is necessary to remove the inner door panel of the driving frame and dock the door, after releasing the restraint lock of the inner door panel, the magnetic locking plate 1 and the magnetic locking plate 2 can be used for magnetic abutment to complete the clamping and positioning of the left and right docking door panels. Then the driving control electric gas 1 is operated to drive the restraint plate to extend into the interior of the wrapped restraint frame. The anti-collision plate in the inner wall of the wrapped restraint frame can be located on the upper and lower sides of the restraint plate. A force unloading cushion is added to unload the force when the docking door panel follows the shaking of the carriage. That is, when the restraint plate hits the anti-collision plate, the spring telescopic rod is used for elastic buffering and unloading. The setting of the elastic dust cover reduces the impact of external dust on the internal structure. When the inner door panel is pulled out, it moves under the guidance of the guide wheel by utilizing the guide limit groove. When timely positioning is performed, the electric cylinder 2 can be driven to drive the stop plate to move, and the inner door panel can be pressed and positioned in time. Under the action of the anti-slip pad, the loose and slippery movement of the inner door panel during positioning is reduced, and the opening and closing size of the inner door inside the EMU at different positions is completed. A distance sensor is provided to enable real-time viewing of the inner door panel, and corresponding detection of the anti-deflection effect of the inner door panel can be performed, thereby realizing the effect of controllable positioning and opening and closing size of the inner door inside the EMU. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the specific embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of an inner end door of a high-speed railway EMU of the present utility model;

[0019] Figure 2 This is a front cross-sectional view of an inner end door of a high-speed railway EMU according to the present invention;

[0020] Figure 3 This is an enlarged view of point A of the inner end door of a high-speed railway EMU of the present utility model;

[0021] Figure 4 This is an enlarged view of point B of the inner end door of a high-speed railway EMU of the present utility model;

[0022] Numbers in the figure: 1. Driving frame; 2. Shock absorber; 3. Guide wheel; 4. Inner door panel; 5. Guide limit groove; 6. Electric cylinder 1; 7. Constraint plate; 8. Buffer pad; 9. Docking door panel; 10. Wrapping constraint frame; 11. Spring telescopic rod; 12. Anti-collision plate; 13. Force unloading cushion; 14. Electric cylinder 2; 15. Stop plate; 16. Anti-slip pad; 17. Magnetic locking plate 1; 18. Magnetic locking plate 2; 19. Elastic dust cover; 20. Anti-slip fixing groove; 21. Anti-slip fixing plate; 22. Distance sensor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1, please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0025] A high-speed railway EMU inner end door, including a driving frame 1, the top and bottom of the inner wall of the driving frame 1 are provided with grooves, the inner wall of the groove is fixedly installed with a shock absorber 2, one end of the shock absorber 2 is fixedly connected to a guide wheel 3, an inner end door panel 4 is placed inside the driving frame 1, the top and bottom of the inner end door panel 4 are provided with guide limit grooves 5, the inner wall of the guide limit groove 5 and the surface of the guide wheel 3 are rollingly connected, an electric cylinder 6 is fixedly installed on the side of the right inner end door panel 4, the output end of the electric cylinder 6 is fixedly connected to a constraint Plate 7, a buffer pad 8 is fixedly connected to the surface near the middle of the inner end door panel 4, one side of the buffer pad 8 is fixedly connected to a docking door panel 9 with a movable groove, the side of the docking door panel 9 is connected to a locking assembly, and a wrapping constraint frame 10 is fixedly connected to the side of the left inner end door panel 4, and a spring telescopic rod 11 is fixedly connected to the surface of the inner wall of the wrapping constraint frame 10, one end of the spring telescopic rod 11 is fixedly connected to an anti-collision plate 12, and a force unloading cushion 13 is fixedly connected to the surface of the anti-collision plate 12, and the wrapping constraint frame 10 is located on the side of the constraint plate 7.

[0026] Specifically, such as Figure 1-Figure 4As shown, a second electric cylinder 14 is fixedly mounted on the surface of the inner wall of the driving frame 1, and a stop plate 15 is fixedly connected to the output end of the second electric cylinder 14. A non-slip pad 16 is fixedly connected to the surface of the stop plate 15, and the surface of the non-slip pad 16 is coated with a wear-resistant coating. The second electric cylinder 14 drives the stop plate 15 to move, which can timely press and position the inner end door panel 4. Under the action of the non-slip pad 16, the loose movement of the inner end door panel 4 during the positioning process is reduced, and the opening and closing of the inner end door of the EMU at different positions is completed.

[0027] Specifically, such as Figure 1-Figure 4 As shown, the locking assembly includes a magnetic locking plate 17 and a magnetic locking plate 2 18. The magnetic locking plate 17 is fixedly connected to the left docking door panel 9, and the magnetic locking plate 2 18 is fixedly connected to the right docking door panel 9. The surface of the magnetic locking plate 2 18 and the surface of the magnetic locking plate 1 17 are electromagnetically abutted. The magnetic locking plate 17 and the magnetic locking plate 2 18 are magnetically abutted to complete the clamping and positioning of the left and right docking door panels 9.

[0028] Furthermore, an anti-slip locking groove 20 is opened on the side of the driving frame 1 near one end thereof, and an anti-slip locking plate 21 is fixedly connected to the side of the docking door panel 9 near one end thereof. The surface of the anti-slip locking plate 21 and the inner wall of the anti-slip locking groove 20 are electromagnetically connected. The anti-slip locking plate 21 on the docking door panel 9 is inserted into the inner wall of the anti-slip locking groove 20 to form a magnetic locking positioning and clamping effect, which can wrap and position the docking door panel 9 and the inner end door panel 4 therein.

[0029] Example 2, please refer to Figure 1-Figure 4 The difference between this embodiment and the first embodiment is that an elastic dust cover 19 is fixedly connected to the side surface of the inner door panel 4 near its end surface. One side of the elastic dust cover 19 is fixedly connected to the side surface of the docking door panel 9, and the inner portion of the elastic dust cover 19 is sheathed on the outer portion of the buffer plate 8. Under the action of the elastic dust cover 19, a dust-proof protection effect can be achieved in a stretched state. A distance sensor 22 is fixedly mounted on one end of the driving frame 1 near its inner wall. The distance sensor 22 is vertically located directly below and directly below the inner door panel 4. The provision of the distance sensor 22 enables real-time monitoring of the inner door panel 4 and corresponding detection of the anti-deflection effect of the inner door panel 4.

[0030] The working principle of the present invention is as follows: when in use, the staff can install the driving car frame 1 in the interior of the high-speed railway carriage for the use and storage of the carriage in the EMU. If the inner end door needs to be stored and opened normally, the anti-skid locking plate 21 on the docking door panel 9 can be inserted into the inner wall of the anti-skid locking groove 20 to form a magnetic locking positioning and clamping effect. If it is necessary to remove the inner end door panel 4 in the driving car frame 1 and dock the door, after releasing the constraint lock of the inner end door panel 4, the magnetic locking plate 17 and the magnetic locking plate 2 18 can be used for magnetic abutment to complete the clamping and positioning of the left and right docking door panels 9, and then the driving control electric gas is operated to drive the restraint plate 7 to extend into the interior of the wrapped restraint frame 10. The anti-collision plate 12 in the inner wall of the wrapped restraint frame 10 can be located on the upper and lower sides of the restraint plate 7, and the added force unloading cushion 13 can be used when the docking door panel 9 follows the shaking of the carriage. The spring-loaded telescopic rod 11 is used to elastically buffer and unload the force during the movement, and the setting of the elastic dust cover 19 reduces the influence of external dust on the internal structure. When the inner door panel 4 is pulled out, the guide limit groove 5 is used to move under the guidance of the guide wheel 3. When timely positioning is performed, the electric cylinder 2 14 can be driven to drive the stop plate 15 to move, and the inner door panel 4 can be timely pressed and positioned. Under the action of the anti-slip pad 16, the loose movement of the inner door panel 4 during the positioning process is reduced, and the opening and closing size of the inner door of the EMU at different positions is completed. A distance sensor 22 is provided to enable real-time viewing of the inner door panel 4, and the corresponding anti-deflection effect of the inner door panel 4 can be detected, thereby realizing the effect of controllable positioning switching size of the inner door inside the EMU.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inner end door of a high-speed railway EMU, comprising a driving frame (1), characterized in that: The top and bottom of the inner wall of the driving frame (1) are provided with grooves, the inner wall of the groove is fixedly installed with a shock absorber (2), one end of the shock absorber (2) is fixedly connected with a guide wheel (3), an inner end door panel (4) is placed inside the driving frame (1), the top and bottom of the inner end door panel (4) are provided with guide limit grooves (5), the inner wall of the guide limit groove (5) and the surface of the guide wheel (3) are rollingly connected, an electric cylinder (6) is fixedly installed on the side of the right inner end door panel (4), the output end of the electric cylinder (6) is fixedly connected with a restraining plate (7), the inner end door panel (4 ) is fixedly connected to a surface near the middle thereof with a buffer pad (8), one side of the buffer pad (8) is fixedly connected to a docking door panel (9) with a movable groove, the side of the docking door panel (9) is connected to a locking assembly, the side of the left inner end door panel (4) is fixedly connected to a wrapping constraint frame (10), the surface of the inner wall of the wrapping constraint frame (10) is fixedly connected to a spring telescopic rod (11), one end of the spring telescopic rod (11) is fixedly connected to an anti-collision plate (12), the surface of the anti-collision plate (12) is fixedly connected to a force-releasing cushion (13), and the wrapping constraint frame (10) is located on the side of the constraint plate (7).

2. The high-speed railway train inner end door according to claim 1, characterized in that: The surface of the inner wall of the driving vehicle frame (1) is fixedly mounted with an electric cylinder 2 (14), and the output end of the electric cylinder 2 (14) is fixedly connected with a stop plate (15).

3. The high-speed railway train inner end door according to claim 2, characterized in that: The surface of the stop plate (15) is fixedly connected with an anti-skid pad (16), and the surface of the anti-skid pad (16) is coated with a wear-resistant coating.

4. The high-speed railway train inner end door according to claim 1, characterized in that: The locking assembly comprises a magnetic locking plate 1 (17) and a magnetic locking plate 2 (18), wherein the magnetic locking plate 1 (17) is fixedly connected to the left docking door panel (9), and the magnetic locking plate 2 (18) is fixedly connected to the right docking door panel (9), and the surface of the magnetic locking plate 2 (18) and the surface of the magnetic locking plate 1 (17) are in contact with each other through electromagnetic attraction.

5. The high-speed railway train inner end door according to claim 1, characterized in that: An elastic dust cover (19) is fixedly connected to the side surface of the inner end door panel (4) near its end surface, one side of the elastic dust cover (19) is fixedly connected to the side surface of the docking door panel (9), and the inside of the elastic dust cover (19) is sleeved on the outside of the buffer pad (8).

6. The high-speed railway train inner end door according to claim 1, characterized in that: The driving frame (1) is provided with an anti-skid locking groove (20) on a side surface close to one end thereof, and the docking door panel (9) is fixedly connected with an anti-skid locking plate (21) on a side surface close to one end thereof, and the surface of the anti-skid locking plate (21) and the inner wall of the anti-skid locking groove (20) are connected by electromagnetic suction.

7. The high-speed railway train inner end door according to claim 1, characterized in that: A distance sensor (22) is fixedly mounted on one end of the driving vehicle frame (1) close to the inner wall thereof, and the distance sensor (22) is vertically located just below and just below the inner end door panel (4).

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