Double-layer rubber windshield for rail transit
By introducing electric heating and stabilizing components into the windshields of rail transit, the problems of decreased sealing performance and easy stretching of rubber at low temperatures have been solved. This has enabled the windshields to maintain sealing performance and enhance the tensile strength of the rubber frame under low-temperature conditions, thus extending their service life.
Patent Information
- Application Number
- CN202520497892.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing rail transit windshields suffer from reduced sealing performance at low temperatures, and the rubber tends to harden and become brittle. Furthermore, the rubber is easily overstretched when the train curves, reducing its service life.
A double-layer rubber windshield for rail transit was designed, comprising a first windshield assembly, a stabilizing assembly, and a retaining assembly. The first windshield assembly is equipped with an electric heating wire and a temperature sensor. The stabilizing assembly consists of a pull rope, a hook, and a tension spring. The retaining assembly is composed of a fixed pulley, which is used to heat and keep warm at low temperatures and enhance the tensile strength of the rubber.
It maintains a tight seal at low temperatures, prevents the rubber from hardening and becoming brittle, and enhances the tensile strength of the rubber frame when the train curves, thus extending its service life.
Smart Images

Figure CN223864847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of windshield technology, specifically a double-layer rubber windshield for rail transit. Background Technology
[0002] Rail transit windshields, also known as vehicle connecting windshields or end-connecting devices, are important components of rail transit vehicles. They are mainly installed at the connection points between adjacent cars in urban rail vehicles, forming a complete passageway between the two cars. The windshields are primarily composed of rubber and various connectors, enabling a flexible connection between the cars and better accommodating relative movements between them, such as changes in angle during cornering.
[0003] While current windshields offer good connectivity, their functionality is relatively limited. In winter, low temperatures cause the rubber to harden and become brittle, and the various components of the windshield to shrink, leading to a decrease in the windshield's sealing performance. Additionally, current windshields lack tensile strength, resulting in significant pulling forces on the rubber when the train is cornering, which can easily cause the rubber to be overstretched and reduce the windshield's lifespan. Utility Model Content
[0004] The purpose of this invention is to provide a double-layer rubber windshield for rail transit to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-layer rubber windshield for rail transit, comprising: two mounting frames, and further comprising: a first windshield assembly connected between the two mounting frames, wherein multiple connecting frames are provided between the two mounting frames, and rubber frames are connected between the connecting frames and the mounting frames, and between two adjacent connecting frames, stabilizing components are connected at both ends between two adjacent connecting frames and between the connecting frames and the mounting frames, and retaining components are provided between the connecting frames and the mounting frames, and between two adjacent connecting frames, wherein a temperature sensor is embedded in one outer wall of one of the mounting frames, and a controller is installed on one outer wall of one of the mounting frames.
[0006] The first windshield assembly includes an outer protective rubber layer, a heat insulation layer laminated on the inner wall of the outer protective rubber layer, and a plurality of equidistantly distributed electric heating wires installed on the inner wall of the heat insulation layer.
[0007] The stabilizing component includes a pull rope, hooks connected to both ends of the pull rope, and tension springs connected to both ends of the two hooks respectively.
[0008] The retaining assembly includes a first fixed pulley and a second fixed pulley, and the first fixed pulley and the second fixed pulley are arranged opposite to each other.
[0009] The pull rope forms a sliding engagement with the first and second fixed pulleys.
[0010] Both the electric heating wire and the temperature sensor are connected to the controller via signal lines.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model discloses a double-layer rubber windshield for rail transit. The first windshield component has a heating function. A temperature sensor can monitor the internal temperature of the first windshield component. In winter, when the temperature is low, the first windshield component can be heated and kept warm to prevent the rubber from hardening and becoming brittle and to prevent the shrinkage of various windshield components, thus ensuring airtightness. When the train is turning, the movement of the carriages exerts a large pulling force on the rubber frame. The stabilizing component can improve the tensile strength of the rubber frame, prevent the rubber frame from being overstretched, and extend its service life. Attached Figure Description
[0013] Figure 1 This is a cross-sectional view of the present invention;
[0014] Figure 2 This is an external structural view of the present invention;
[0015] Figure 3 This is a structural diagram of the first windshield assembly of this utility model;
[0016] Figure 4 This is a structural diagram of the stabilizing component of this utility model;
[0017] Figure 5 This is a structural diagram of the retaining component of this utility model.
[0018] In the diagram: 1. Mounting frame; 2. First windshield assembly; 201. Outer protective rubber layer; 202. Heat insulation layer; 203. Electric heating wire; 3. Connecting frame; 4. Rubber frame; 5. Stabilizing assembly; 501. Pull rope; 502. Hook; 503. Tension spring; 6. Holding assembly; 601. First fixed pulley; 602. Second fixed pulley; 7. Temperature sensor; 8. Controller. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-5The present invention provides a double-layer rubber windshield for rail transit, comprising: two mounting frames 1, and a first windshield assembly 2 connected between the two mounting frames 1. A plurality of connecting frames 3 are provided between the two mounting frames 1, and rubber frames 4 are connected between the connecting frames 3 and the mounting frames 1, and between two adjacent connecting frames 3. Stabilizing components 5 are connected at both ends between two adjacent connecting frames 3 and between the connecting frames 3 and the mounting frames 1, and retaining components 6 are provided between the connecting frames 3 and the mounting frames 1, and between two adjacent connecting frames 3. A temperature sensor 7 is embedded in one outer wall of one mounting frame 1, and a controller 8 is installed in one outer wall of one mounting frame 1.
[0021] It should be noted that: the two mounting frames 1 can be installed on the two carriages respectively, and a channel can be formed by multiple connecting frames 3 and rubber frames 4 to connect the two carriages. The first windshield assembly 2 is set on the outside of the connecting frames 3 and rubber frames 4, which can protect them and further improve the sealing. At the same time, the first windshield assembly 2 has a heating function. The internal temperature of the first windshield assembly 2 can be monitored by the set temperature sensor 7. In winter when the temperature is low, the interior of the first windshield assembly 2 can be heated and kept warm to prevent the rubber from hardening and becoming brittle and to prevent the shrinkage of various windshield components, thus ensuring the sealing. When the train goes through a curve, the movement of the carriages exerts a large pulling force on the rubber frames 4. The set stabilizing component 5 can improve the tensile strength of the rubber frames 4, prevent the rubber frames 4 from being overstretched, and extend their service life.
[0022] In a preferred embodiment, the first windshield assembly 2 includes an outer protective rubber layer 201, a heat insulation layer 202 laminated on the inner wall of the outer protective rubber layer 201, and a plurality of equidistantly distributed electric heating wires 203 installed on the inner wall of the heat insulation layer 202.
[0023] It should be noted that the outer protective rubber layer 201 can protect and seal the multiple connecting frames 3 and rubber frames 4 inside, and the electric heating wire 203 can heat the outer protective rubber layer 201.
[0024] In a preferred embodiment, the stabilizing component 5 includes a pull rope 501, hooks 502 connected to both ends of the pull rope 501, and tension springs 503 respectively connected to both ends of the two hooks 502.
[0025] It should be noted that when the train is going around a curve, the windshield is bent as a whole, and the distance between one end of the two adjacent connecting frames 3 increases, which stretches the rubber frame 4. At the same time, it drives the two tension springs 503 to stretch and pull the rope 501. The rope 501 then pulls the two tension springs 503 at the other end to help the rubber frame 4 resist the tension.
[0026] In a preferred embodiment, the retaining component 6 includes a first fixed pulley 601 and a second fixed pulley 602, and the first fixed pulley 601 and the second fixed pulley 602 are arranged opposite to each other.
[0027] It should be noted here that this helps keep the 501 rope stable during exercise.
[0028] Working principle: Two mounting frames 1 can be installed on two carriages respectively. Multiple connecting frames 3 and rubber frames 4 can form a channel to connect the two carriages. The outer protective rubber layer 201 can protect and seal the multiple connecting frames 3 and rubber frames 4 inside. The electric heating wire 203 can heat the outer protective rubber layer 201. The temperature sensor 7 can monitor the internal temperature of the outer protective rubber layer 201. In winter when the temperature is low, the electric heating wire 203 can heat and insulate the inside of the outer protective rubber layer 201 to prevent the rubber from hardening and becoming brittle and to prevent the shrinkage of various parts of the windshield, thus ensuring the seal. When the train goes through a curve, the windshield is bent as a whole, and the distance between one end of two adjacent connecting frames 3 increases, which stretches the rubber frame 4. At the same time, it drives the two tension springs 503 to stretch the pull rope 501. The pull rope 501 then pulls the two tension springs 503 at the other end to help the rubber frame 4 resist the tension, prevent the rubber frame 4 from being overstretched, and extend its service life.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A rail transit double-layer rubber windscreen, comprising: two mounting frames (1); characterized in that it further comprises a first windscreen assembly (2) connected between the two mounting frames (1), a plurality of connecting frames (3) arranged between the two mounting frames (1), rubber frames (4) connected between the connecting frames (3) and the mounting frames (1) and between adjacent connecting frames (3), stability assemblies (5) connected to the upper and lower ends of the connecting frames (3) and the mounting frames (1), retaining assemblies (6) arranged between the connecting frames (3) and the mounting frames (1) and between adjacent connecting frames (3), a temperature sensor (7) embedded in one side outer wall of one of the mounting frames (1), and a controller (8) mounted on one side outer wall of one of the mounting frames (1).
2. The double-deck rubber windscreen for rail transit according to claim 1, characterized in that: The first windscreen assembly (2) comprises an outer protective rubber layer (201), a heat insulation layer (202) compounded on the inner wall of the outer protective rubber layer (201), and a plurality of equidistantly distributed electric heating wires (203) mounted on the inner wall of the heat insulation layer (202).
3. The double-deck rubber windscreen of rail transit according to claim 1, characterized in that: The stability assembly (5) comprises a pull rope (501), hooks (502) connected to the two ends of the pull rope (501), and pull springs (503) respectively connected to the two ends of the two hooks (502).
4. The double-deck rubber windscreen of rail transit according to claim 3, characterized in that: The retaining assembly (6) comprises a first fixed pulley (601) and a second fixed pulley (602), and the first fixed pulley (601) and the second fixed pulley (602) are oppositely arranged.
5. The double-deck rubber windscreen of rail transit according to claim 4, characterized in that: The pull rope (501) is in sliding fit with the first fixed pulley (601) and the second fixed pulley (602).
6. The double-deck rubber windscreen of rail transit according to claim 2, characterized in that: The electric heating wire (203) and the temperature sensor (7) are connected to the controller (8) through signal lines.