Low-temperature durable windshield for railway vehicle

Abstract

The utility model discloses a low-temperature durable windshield for a railway vehicle, which relates to the technical field of railway vehicle windshields and comprises two square fixing frames, a telescopic inner windshield mechanism is fixedly mounted between opposite surfaces of the two square fixing frames, and the telescopic inner windshield mechanism comprises a plurality of hollow rubber sleeves. A plurality of hollow rubber sleeves are fixedly connected with one another, protective filling bodies are fixedly mounted in inner cavities of the hollow rubber sleeves, each protective filling body comprises a heat insulation strip, a low-temperature-resistant strip is fixedly mounted on one side of an outer ring of each heat insulation strip, and a heat preservation strip is fixedly mounted on one side of an inner ring of each heat insulation strip. According to the utility model, through the cooperation of the hollow rubber sleeve and the internal protection filling main body, the telescopic hollow rubber sleeve used by the windshield has excellent low-temperature resistance, and the service life of the windshield can still be ensured when a railway vehicle runs for a long time in a low-temperature environment.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicle windshields, in particular to a low-temperature durable windshield for rail vehicles. Background Art

[0002] In order to reduce running resistance and energy consumption, high-speed EMUs in rail transit vehicles will install external windshields on the end walls of the vehicle body, making the vehicle body appearance an integrated structure, effectively reducing air flow disturbance and air resistance. At the same time, an internal windshield will be installed between the two cars inside the external windshield, so that passengers can avoid being disturbed by external airflow when shuttling between cars, and the riding experience is more comfortable. The existing technology has the following problems:

[0003] Because the existing inner windshield is usually made of retractable and foldable rubber material, although the extensibility and sealing are guaranteed, when rail vehicles are running in cold areas, due to the low external temperature, rubber alone cannot achieve effective insulation effect, so that the car joints will also feel cold. At the same time, when the heating is turned on inside the car, the alternating hot and cold will greatly reduce the service life of the rubber, affecting its durability. Utility Model Content

[0004] The utility model provides a low-temperature durable windshield for a rail vehicle to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A low-temperature durable windshield for rail vehicles comprises two square fixing frames, a telescopic inner windshield mechanism is fixedly installed between opposite surfaces of the two square fixing frames, the telescopic inner windshield mechanism comprises a plurality of hollow rubber sleeves, the plurality of hollow rubber sleeves are fixedly connected to each other, the inner cavities of the plurality of hollow rubber sleeves are fixedly installed with protective filling bodies, the protective filling bodies comprise heat insulating strips, a low-temperature resistant strip is fixedly installed on one side of the outer ring of the heat insulating strips, and a heat preservation strip is fixedly installed on one side of the inner ring of the heat insulating strips.

[0007] A further improvement of the technical solution of the utility model is that: mounting rings are fixedly mounted on both left and right sides of the tops of the two square fixing frames.

[0008] A further improvement of the technical solution of the utility model is that a movable pedal is provided at the bottom of the inner circle of the two square fixed frames, a sliding groove is opened at the bottom of the movable pedal, two sliding rods are fixedly connected between the front and rear sides of the inner wall of the sliding groove, two sliding plates are slidably connected to the outer walls of the two sliding rods, and a fixed clamping groove is opened at the bottom of the inner circle of the two square fixed frames, and the two sliding plates are clamped with the two fixed clamping grooves.

[0009] A further improvement of the technical solution of the utility model is that: the rear ends of the left and right sides of the movable pedal are fixedly installed with docking mounting blocks, and the top of the movable pedal is evenly fixedly installed with a plurality of anti-slip strips.

[0010] A further improvement of the technical solution of the utility model lies in that: the two sliding plates are both provided with threaded grooves that pass through from front to back, the opposite surfaces of the inner walls of the fixed clamping grooves are both provided with threaded holes, and the front threaded hole passes through the front end of the front square fixing frame, and the rear threaded hole passes through the rear end of the rear square fixing frame, the two threaded holes are both threadedly installed with pentagonal bolts, and the pentagonal bolts extend to the inner cavity of the fixed clamping groove and are threadedly connected to the threaded groove.

[0011] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0012] 1. The utility model provides a low-temperature durable windshield for rail vehicles. Through the cooperation of the hollow rubber sleeve and the internal protective filling body, the retractable hollow rubber sleeve used in the windshield has excellent low-temperature resistance, and the service life of the windshield can still be guaranteed when the rail vehicle is running for a long time in a low-temperature environment.

[0013] 2. The utility model provides a low-temperature durable windshield for rail vehicles. Through the cooperation of a movable pedal and two square fixed frames, the movable pedal can be quickly removed from the square fixed frames without affecting the telescopic function of the two square fixed frames when turning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the hollow rubber sleeve of the utility model structure;

[0016] Figure 3 It is a schematic cross-sectional view of the protective filling body of the utility model structure;

[0017] Figure 4 It is a cross-sectional schematic diagram of a movable pedal of the utility model structure;

[0018] Figure 5 It is a cross-sectional schematic diagram of a square fixed frame of the structure of the utility model.

[0019] In the figure: 1. square fixing frame; 11. mounting ring; 12. movable pedal; 121. anti-slip strip; 122. docking mounting block; 123. sliding groove; 124. sliding rod; 125. sliding plate; 1251. threaded groove; 13. fixed snap-in groove; 131. threaded hole; 14. pentagonal bolt; 2. telescopic inner windshield mechanism; 21. hollow rubber sleeve; 22. protective filling body; 221. heat insulation strip; 222. low temperature resistant strip; 223. thermal insulation strip. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model provides a low-temperature durable windshield for a rail vehicle, comprising two square fixing frames 1, a telescopic inner windshield mechanism 2 is fixedly installed between the opposite surfaces of the two square fixing frames 1, the telescopic inner windshield mechanism 2 comprises a plurality of hollow rubber sleeves 21, the plurality of hollow rubber sleeves 21 are fixedly connected to each other, the inner cavities of the plurality of hollow rubber sleeves 21 are all fixedly installed with protective filling bodies 22, the protective filling bodies 22 comprise heat insulating strips 221, the heat insulating strips 221 are made of heat insulating cotton material, and the heat insulating strips A low-temperature resistant strip 222 is fixedly installed on one side of the outer ring of 221. The low-temperature resistant strip 222 is made of TPE soft rubber material, which can withstand a low temperature of -50°C. It does not harden under low temperature conditions and still maintains the softness and comfort of the material, thereby effectively improving the service life of the hollow rubber sleeve 21 under low temperature conditions. A heat insulation strip 223 is fixedly installed on one side of the inner ring of the heat insulation strip 221. The heat insulation strip 223 is made of glass wool. The heat insulation strip 221 made of heat insulation wool can effectively prevent cold air from entering and prevent internal heat from flowing out.

[0022] The integral telescopic inner windshield mechanism 2 is composed of a plurality of telescopic hollow rubber sleeves 21 and is installed between two square fixed frames 1. When the rail vehicle is running, the protective filling body 22 composed of the heat insulation strip 221, the low temperature resistant strip 222 and the heat preservation strip 223 in the inner cavity of the hollow rubber sleeve 21 provides the effect of low temperature resistance and preventing heat loss.

[0023] like Figure 4As shown, mounting rings 11 are fixedly installed on the left and right sides of the tops of the two square fixed frames 1, and a movable pedal 12 is arranged at the bottom of the inner circle of the two square fixed frames 1. A sliding groove 123 is provided at the bottom of the movable pedal 12, and two sliding rods 124 are fixedly connected between the front and rear sides of the inner wall of the sliding groove 123. Two sliding plates 125 are slidably connected to the outer walls of the two sliding rods 124. A fixed clamping groove 13 is provided at the bottom of the inner circle of the two square fixed frames 1. The two sliding plates 125 are clamped with the two fixed clamping grooves 13. The rear ends of the left and right sides of the movable pedal 12 are fixedly installed with docking mounting blocks 122. The docking mounting blocks 122 can facilitate the installation and fixation of the two movable pedals 12 on the opposite sides of the two carriages after docking. A plurality of anti-slip strips 121 are evenly fixedly installed on the top of the movable pedal 12. The anti-slip strips 121 are made of rubber material, which can increase friction and prevent slipping.

[0024] The square fixed frame 1 on the front side can be installed on the opposite side of the carriage using the mounting ring 11 on the top, and the mounting ring 11 on the top of the square fixed frame 1 on the rear side can be docked and installed with the square fixed frame 1 installed on another carriage. When the carriage turns, the two square fixed frames 1 on the front and rear sides will be stretched, and the sliding plate 125 can slide on the two sliding rods 124 in the inner cavity of the sliding groove 123, so that the moving pedal 12 remains stable without affecting the extension and retraction of the two square fixed frames 1.

[0025] like Figure 5 As shown, the two sliding plates 125 are each provided with a threaded groove 1251 that passes through from front to back, and the inner wall opposite surfaces of the fixed clamping groove 13 are each provided with a threaded hole 131, and the front threaded hole 131 passes through the front end of the front square fixing frame 1, and the rear threaded hole 131 passes through the rear end of the rear square fixing frame 1, and the two threaded holes 131 are both threadedly installed with a pentagonal bolt 14, and the pentagonal bolt 14 extends to the inner cavity of the fixed clamping groove 13 and is threadedly connected to the threaded groove 1251;

[0026] The integral movable pedal 12 can be respectively inserted into the fixed clamping grooves 13 at the bottom of the inner circle of the two square fixed frames 1 through two sliding plates 125, and then tightened and fixed by using the five-pointed bolts 14 passing through the threaded holes 131 and the threaded connection with the threaded grooves 1251. The integral movable pedal 12 can then be directly disassembled by removing the five-pointed bolts 14 with the help of tools, which is convenient for maintenance and replacement.

[0027] The following is a detailed description of the working principle of the low-temperature durable windshield for rail vehicles.

[0028] like Figure 1-5As shown, the integral telescopic inner windshield mechanism 2 is composed of a plurality of telescopic hollow rubber sleeves 21 and is installed between two square fixed frames 1. The front square fixed frame 1 can be installed on the opposite side of the carriage by using the mounting ring 11 above, and the mounting ring 11 on the top of the rear square fixed frame 1 can be docked with the square fixed frame 1 installed on another carriage. When the rail vehicle is running, the protective filling body 22 composed of the heat insulation strip 221, the low temperature resistant strip 222, and the heat preservation strip 223 in the inner cavity of the hollow rubber sleeve 21 provides the effect of low temperature resistance and preventing heat loss. The integral moving pedal 12 can be moved by two The sliding plates 125 are respectively inserted into the fixed clamping grooves 13 at the bottom of the inner circles of the two square fixed frames 1, and then the five-pointed bolts 14 are passed through the threaded holes 131 and the threaded connections with the threaded grooves 1251 for tightening and fixing. Then, the five-pointed bolts 14 are removed with the help of tools to directly disassemble the entire movable pedal 12, which is convenient for maintenance and replacement. At the same time, when the car body turns, the two square fixed frames 1 on the front and rear sides will be stretched, and the sliding plate 125 can slide on the two sliding rods 124 in the inner cavity of the sliding groove 123, so that the movable pedal 12 remains stable without affecting the extension and retraction of the two square fixed frames 1.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A low temperature durable windshield for a rail vehicle, comprising two square fixing frames (1), characterized in that: A telescopic inner windshield mechanism (2) is fixedly installed between the opposite surfaces of the two square fixed frames (1), the telescopic inner windshield mechanism (2) comprises a plurality of hollow rubber sleeves (21), the plurality of hollow rubber sleeves (21) are fixedly connected to each other, the inner cavities of the plurality of hollow rubber sleeves (21) are fixedly installed with a protective filling body (22), the protective filling body (22) comprises a heat insulation strip (221), a low temperature resistant strip (222) is fixedly installed on one side of the outer ring of the heat insulation strip (221), and a heat preservation strip (223) is fixedly installed on one side of the inner ring of the heat insulation strip (221).

2. The low-temperature durable windshield for rail vehicles according to claim 1, characterized in that: Mounting rings (11) are fixedly mounted on both left and right sides of the top of the two square fixed frames (1).

3. The low-temperature durable windshield for rail vehicles according to claim 1, characterized in that: A movable pedal (12) is provided at the bottom of the inner circle of the two square fixed frames (1), a sliding groove (123) is provided at the bottom of the movable pedal (12), two sliding rods (124) are fixedly connected between the front and rear sides of the inner wall of the sliding groove (123), and two sliding plates (125) are slidably connected to the outer walls of the two sliding rods (124), and a fixed clamping groove (13) is provided at the bottom of the inner circle of the two square fixed frames (1), and the two sliding plates (125) are clamped with the two fixed clamping grooves (13).

4. The low-temperature durable windshield for a rail vehicle according to claim 3, characterized in that: The rear ends of the left and right sides of the movable pedal (12) are both fixedly mounted with docking mounting blocks (122), and the top of the movable pedal (12) is evenly fixedly mounted with a plurality of anti-slip strips (121).

5. The low-temperature durable windshield for rail vehicles according to claim 4, characterized in that: The two sliding plates (125) are each provided with a threaded groove (1251) that passes through from front to back, and the inner wall opposite surfaces of the fixed clamping groove (13) are each provided with a threaded hole (131), and the front threaded hole (131) passes through the front end of the front square fixing frame (1), and the rear threaded hole (131) passes through the rear end of the rear square fixing frame (1), and the two threaded holes (131) are both threadedly installed with a pentagonal bolt (14), and the pentagonal bolt (14) extends to the inner cavity of the fixed clamping groove (13) and is threadedly connected to the threaded groove (1251).

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