Roller shutter pull rod balance mechanism for arc-shaped car window

Abstract

The utility model discloses a roller shutter pull rod balance mechanism for an arc-shaped vehicle window, and belongs to the technical field of railway vehicles. A roller shutter pull rod balance mechanism for an arc-shaped car window comprises curtain cloth and a winding drum, one end of the curtain cloth is wound on the winding drum, the other end of the curtain cloth is fixedly connected with a pull rod, two ends of the pull rod are connected with anti-sliding blocks, two sides of the pull rod are provided with sliding rails, the sliding rails are arranged in an arc shape, and the anti-sliding blocks are arranged in the sliding rails in a sliding mode. Connecting rods penetrate through the middles of the plugs in a sliding mode, one ends of the connecting rods are rotationally connected with the anti-skid blocks, the other ends of the connecting rods are sleeved with plug blocks in a sliding mode, elastic elements are arranged between the plug blocks and the plugs, one ends of the connecting rods are in threaded connection with adjusting nuts, and the adjusting nuts and the elastic elements are located on the two sides of the plug blocks respectively. The outer side of the connecting rod is sleeved with the elastic element, and the position of the pull rod can be fixed by means of friction force between the anti-sliding block and the sliding rail.

Description

Technical Field

[0001] This application relates to the field of rail vehicle technology, and more specifically, to a roller shutter rod balancing mechanism for curved windows. Background Technology

[0002] While continuously increasing speeds, high-speed trains are also innovating in terms of train models, resulting in double-decker trains. Due to the limitations of the train's shape, the upper deck of a double-decker train uses curved windows. However, traditional high-speed rail roller shutters are limited by their internal steel cable structure and are only suitable for ordinary straight windows, not curved windows.

[0003] For example, Chinese patent CN202718603U discloses a track-type sunshade and an arc-shaped car window using such a track-type sunshade. The device has two parallel arc-shaped frames distributed in the left-right direction. The track-type sunshade is installed on the window frame. The two arc-shaped tracks of the sunshade are respectively fixed on the two arc-shaped frames of the window frame. When it is necessary to unfold the curtain to block light, the two guide sides on the left and right sides of the curtain slide with the two guide tracks to guide the curtain to unfold in an arc shape. When it is necessary to retract the curtain, the two guide sides on the left and right sides of the curtain slide with the two guide tracks to guide the curtain to retract in an arc shape onto the roller.

[0004] The aforementioned device fixes the position of the curtain by setting baffles on both sides of the curtain and utilizing the friction between the guide groove and the curtain baffles. However, this fixing method increases the friction between the guide groove and the curtain baffles as the curtain protrudes further, thus requiring a larger external force to adjust the curtain position, making it inconvenient to use. Therefore, we propose a roller blind rod balancing mechanism for curved car windows. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this application is to provide a roller shutter rod balancing mechanism for curved vehicle windows to solve the problems mentioned in the background art.

[0007] 2. Technical Solution

[0008] This application is achieved through the following technical solution:

[0009] A roller blind balance mechanism for curved car windows includes a curtain and a roller. One end of the curtain is wound around the roller, and the other end is fixedly connected to a pull rod. Both ends of the pull rod are connected to anti-slip blocks. Slide rails are provided on both sides of the pull rod. The slide rails are curved and have internal tracks. The anti-slip blocks are slidably disposed within the tracks. Both ends of the pull rod are fixedly connected to plugs. A connecting rod slides through the middle of the plug. One end of the connecting rod is rotatably connected to the anti-slip block, and the other end is slidably fitted with a stopper. An elastic element is provided between the stopper and the plug. An adjusting nut is threaded to one end of the connecting rod. The adjusting nut and the elastic element are located on opposite sides of the stopper.

[0010] As an optional solution to the technical solution of this application, the upper end of the slide rail is slidably connected to a bracket, the bracket is fixed to the slide rail by bolts, and the drum is rotatably installed between the two brackets.

[0011] As an optional solution to the technical solution of this application, a spindle is rotatably connected to the middle of the drum, and the two ends of the spindle are respectively connected and fixed to two brackets.

[0012] As an optional solution to the technical solution in this application, the drum and the mandrel are elastically connected by a coil spring.

[0013] As an optional solution to the technical solution in this application, an angle plate is fixedly connected to the outer side of the slide rail.

[0014] As an optional solution to the technical solution of this application, the bracket is provided with at least three first mounting holes, and the upper end of the slide rail is provided with at least two second mounting holes, and the distance between two adjacent first mounting holes is the same as the distance between two adjacent second mounting holes.

[0015] As an optional solution to the technical solution of this application, the end of the connecting rod connected to the anti-slip block is flat, and the connecting rod and the anti-slip block are rotatably connected by a single-headed knurled pin.

[0016] As an optional solution to the technical solution of this application, the connecting rod is threaded with an anti-loosening nut, and the anti-loosening nut and the plug are located on both sides of the adjusting nut.

[0017] As an optional solution to the technical solution of this application, the plug is fixed to the end of the pull rod by screws, and the plug is slidably connected to the inner side of the slide rail.

[0018] As an optional solution to the technical solution in this application, a buffer rubber is fixedly connected to the bottom of the pull rod.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the beneficial effects of this application are:

[0021] 1) This application uses an elastic element on the outside of the connecting rod, so that the elastic element can pull the connecting rod to one side of the pull rod through the plug and the adjusting nut, and the pulling force is applied to the anti-slip block through the connecting rod, thereby increasing the friction between the anti-slip block and the slide rail and fixing the position of the pull rod. Since the friction between the anti-slip block and the slide rail is fixed, the difficulty of adjusting the position of the curtain will not increase due to the increase of the curtain extension length.

[0022] 2) This application allows users to adjust the installation height on both sides of the drum by installing a bracket at the upper end of the slide rail, thereby adjusting the tension of the curtain on both sides of the drum.

[0023] 3) By setting a sliding connection plug on the inner side of the slide rail, this application enables the pull rod to be limited between the two slide rails, keeping the pull rod in a horizontal state and preventing the pull rod from tilting, which would cause the curtain to be bent. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a roller blind pull rod balancing mechanism for curved car windows;

[0025] Figure 2 This is a schematic diagram of the rod structure of a roller blind balance mechanism for curved car windows;

[0026] Figure 3 This is a schematic diagram of the roller structure of a roller blind pull rod balancing mechanism for curved car windows;

[0027] Figure 4 This is a schematic diagram of a slide rail structure for a roller blind balance mechanism used in curved car windows;

[0028] In the diagram: 1. Curtain; 2. Roller; 3. Pull rod; 4. Anti-slip block; 5. Slide rail; 6. Bracket; 7. Angle plate; 8. End cap; 9. Connecting rod; 10. Plug; 11. Elastic element; 12. Adjusting nut; 13. Spindle; 14. Buffer rubber. Detailed Implementation

[0029] The technical solution of this application will now be clearly and completely described in conjunction with the accompanying drawings.

[0030] Please see Figure 1 and Figure 2This application provides a roller blind balance mechanism for curved car windows, including a curtain 1 and a roller 2. One end of the curtain 1 is wound around the roller 2, and the other end is fixedly connected to a pull rod 3. Anti-slip blocks 4 are connected to both ends of the pull rod 3. Slide rails 5 are provided on both sides of the pull rod 3. The slide rails 5 are curved and have a slide track inside. The anti-slip blocks 4 are slidably disposed in the slide track. A bracket 6 is slidably connected to the upper end of the slide rail 5. The bracket 6 is installed and fixed to the slide rail 5 by bolts. The roller 2 is rotatably installed between the two brackets 6.

[0031] In use, this device involves fixing two slide rails 5 to both sides of the window, then installing the roller 2 between two brackets 6. By adjusting the distance between the brackets 6 and the ends of the slide rails 5, and fixing the brackets 6 with bolts, the installation height on both sides of the roller 2 can be adjusted to meet the tightness requirements of the curtain 1 on the roller 2. The user can adjust the coverage area of ​​the curtain 1 by pulling the lever 3. The lever 3 can slide within the track of the slide rail 5 through the anti-slip blocks 4 at both ends, keeping the lever 3 horizontal. The position of the lever 3 can be fixed by the friction between the anti-slip blocks 4 and the slide rail 5. Because the friction between the anti-slip blocks 4 and the slide rail 5 is fixed, the difficulty of adjusting the position of the curtain 1 will not increase as the extension length of the curtain 1 increases.

[0032] Furthermore, both ends of the pull rod 3 are fixedly connected to plugs 8, and a connecting rod 9 slides through the middle of the plug 8. One end of the connecting rod 9 is rotatably connected to the anti-slip block 4, and the other end is slidably fitted with a stopper 10. An elastic element 11 is provided between the stopper 10 and the plug 8. One end of the connecting rod 9 is threadedly connected to an adjusting nut 12, which is located on both sides of the stopper 10. By rotating the adjusting nut 12, the adjusting nut 12 can push the stopper 10 to compress the elastic element 11. The elastic element 11 exerts its internal elastic force on the stopper 10, the adjusting nut 12, and the connecting rod 9, which can pull the anti-slip block 4 closer to the pull rod 3, increasing the friction between the block 4 and the slide rail 5, thereby fixing the position of the pull rod 3.

[0033] Preferably, the end of the connecting rod 9 connected to the anti-slip block 4 is flat. The connecting rod 9 and the anti-slip block 4 are rotatably connected by a single-headed knurled pin. The connecting rod 9 is threaded with an anti-loosening nut. The anti-loosening nut and the plug 10 are located on both sides of the adjusting nut 12. The plug 8 is fixed to the end of the pull rod 3 by screws, which increases the connection stability and reliability of the device. The plug 8 is slidably connected to the inner side of the slide rail 5, so that the pull rod 3 can be limited between the two slide rails 5 by the plug 8, keeping the pull rod 3 in a horizontal state.

[0034] like Figure 3As shown, a spindle 13 is rotatably connected to the middle of the drum 2. The two ends of the spindle 13 are respectively connected and fixed to two brackets 6. The drum 2 and the spindle 13 are elastically connected by a coil spring. By adjusting the torque of the coil spring, the weight of the anti-slip block 4 and the pull rod 3 can be balanced, making it convenient for the user to adjust the coverage area of ​​the curtain 1.

[0035] like Figure 4 As shown, a corner plate 7 is fixedly connected to the outer side of the slide rail 5. The corner plate 7 increases the contact area between the slide rail 5 and the walls on both sides of the window, thereby increasing the stability of the connection between the slide rail 5 and the wall. The bracket 6 has at least three first mounting holes, and the upper end of the slide rail 5 has at least two second mounting holes. The distance between two adjacent first mounting holes is the same as the distance between two adjacent second mounting holes. By adjusting the alignment of the first and second mounting holes, the installation height of the roller 2 can be easily adjusted.

[0036] In addition, a buffer rubber 14 is fixedly connected to the bottom of the pull rod 3. When the pull rod 3 is pulled down, the buffer rubber 14 can prevent the pull rod 3 from having a rigid collision with the window and prevent damage to the pull rod 3 or the window.

Claims

1. A roller blind balance mechanism for curved car windows, characterized in that: The device includes a curtain (1) and a roller (2). One end of the curtain (1) is wound around the roller (2), and the other end is fixedly connected to a pull rod (3). Both ends of the pull rod (3) are connected to anti-slip blocks (4). Both sides of the pull rod (3) are provided with slide rails (5). The slide rails (5) are arc-shaped and have a slide channel inside. The anti-slip blocks (4) are slidably disposed in the slide channel. Both ends of the pull rod (3) are fixedly connected to plugs (8). A connecting rod (9) slides through the middle of the plug (8). One end of the connecting rod (9) is rotatably connected to the anti-slip block (4), and the other end is slidably fitted with a stopper (10). An elastic element (11) is provided between the stopper (10) and the plug (8). One end of the connecting rod (9) is threadedly connected to an adjusting nut (12). The adjusting nut (12) and the elastic element (11) are located on both sides of the stopper (10).

2. The roller shutter rod balancing mechanism for an arc-shaped vehicle window according to claim 1, characterized in that: The upper end of the slide rail (5) is slidably connected to a bracket (6), and the bracket (6) is fixed to the slide rail (5) by bolts. The drum (2) is rotatably installed between the two brackets (6).

3. The roller blind balance mechanism for an arc-shaped vehicle window according to claim 2, characterized in that: The middle part of the drum (2) is rotatably connected to a spindle (13), and the two ends of the spindle (13) are respectively connected and fixed to two brackets (6).

4. The roller blind balance mechanism for an arc-shaped vehicle window according to claim 3, characterized in that: The drum (2) and the spindle (13) are elastically connected by a coil spring.

5. A roller blind balance mechanism for an arc-shaped vehicle window according to claim 1, characterized in that: Angle plate (7) is fixedly connected to the outside of the slide rail (5).

6. A roller blind balance mechanism for an arc-shaped vehicle window according to claim 2, characterized in that: The bracket (6) has at least three first mounting holes, and the slide rail (5) has at least two second mounting holes at its upper end. The distance between two adjacent first mounting holes is the same as the distance between two adjacent second mounting holes.

7. The roller blind balance mechanism for an arc-shaped vehicle window according to claim 1, characterized in that: The end of the connecting rod (9) connected to the anti-slip block (4) is flat, and the connecting rod (9) and the anti-slip block (4) are rotatably connected by a single-head knurled pin.

8. A roller blind balance mechanism for an arc-shaped vehicle window according to claim 1, characterized in that: The connecting rod (9) is threaded with an anti-loosening nut, and the anti-loosening nut and the plug (10) are located on both sides of the adjusting nut (12).

9. A roller blind balance mechanism for an arc-shaped vehicle window according to claim 1, characterized in that: The plug (8) is fixed to the end of the pull rod (3) by screws, and the plug (8) is slidably connected to the inner side of the slide rail (5).

10. A roller blind balance mechanism for an arc-shaped vehicle window according to claim 1, characterized in that: The bottom of the pull rod (3) is fixedly connected to a buffer rubber (14).

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