WO2020237860A1

WO2020237860A1 - Airtight door for rail vehicle

Info

Publication number: WO2020237860A1
Application number: PCT/CN2019/102539
Authority: WO
Inventors: 程荣; 周庭东; 王越坦
Original assignee: 南京康尼机电股份有限公司
Priority date: 2019-05-27
Filing date: 2019-08-26
Publication date: 2020-12-03
Also published as: CN110316208A

Abstract

An airtight door for a rail vehicle, comprising a door leaf (4), a door carrying frame (3) connected to the door leaf (4), a guide rail (5) mounted above the door leaf (4), bearing wheels (2) connected to the door carrying frame (3) to drive the door leaf (4) to move in the guide rail (5), a groove (20) on the guide rail (5) for longitudinal displacement of the door leaf (4) during lateral movement thereof, and a seal on the door leaf (4) for sealing with the vehicle body. The bottom of the door leaf (4) is inserted between an outer door threshold (14) and an inner door threshold (15), a sliding block (17) used for driving the door leaf (4) to slide between the inner and outer door thresholds is mounted at the bottom of the door leaf (4), and the length of the sliding block (17) is 1/3 to 1/2 of the width of the door leaf (4). According to the airtight door, the door leaf (4) sinks as a whole after locking, and the door leaf (4) is pressure-fitted with the vehicle body to enhance the sealing effect; the problem of poor sealing effect caused by the V-shape phenomenon of the vehicle door can be avoided, the manufacturing process is simple, and the invention is suitable for large-scale promotion and application.

Description

Closed door of rail vehicle

Technical field

The invention relates to a closed door, in particular to a closed door of a rail vehicle.

Background technique

At present, the door system of the rail vehicle cab adopts a sliding door structure. This structure has two shortcomings. First, there is only horizontal movement, and the sealing effect of locking after being closed in place is very poor. The current built-in door The system uses a brush structure, which can only block dust, rain, etc., and cannot achieve sealing. The patent with publication number CN106401426 discloses a rail vehicle built-in door. A wedge-shaped sealing strip is provided on the top of the door leaf, and a wedge-shaped sealing strip is provided at the matching position of the side wall of the car body and the top of the door leaf. The rubber strip and the sealing strip can be matched and compressed. The invention enhances the sealing effect of the upper and lower parts of the door leaf to a certain extent, but has the following shortcomings: 1. Due to the natural V-shaped phenomenon of the car door, the door leaf is not absolutely horizontal or plumb down. When closed, the full length of the wedge-shaped rubber strip is difficult to achieve full compaction contact, so the part that is not compacted will still face the problems of poor sealing and poor noise reduction; second, the bottom of the door page is still a brush structure, the bottom The sealing effect is still not improved.

Secondly, in order to meet the requirement of opening the door leaf, the existing enclosed closed door occupies a lot of floor space in the vehicle in the door sill and the guiding part of the door leaf, which is not conducive to the requirements of some special and narrow cabs.

Summary of the invention

Object of the invention: An object of the present invention is to provide a rail vehicle closed door with a door leaf that can sink as a whole during the locking process to enhance the sealing effect;

Another object of the present invention is to provide a closed door for rail vehicles with a guide device at the bottom of the door leaf occupies less vehicle floor.

Technical solution: Aiming at the first invention, the closed door for rail vehicles of the present invention includes a door leaf, a door carrying frame connected to the door leaf, a guide rail installed above the door leaf, and a connection with the door carrying frame to drive the door leaf in the guide rail The moving bearing wheel, the groove on the guide rail for longitudinal displacement of the door leaf in the process of lateral movement, and the seal on the door leaf for sealing with the car body.

In order to prevent the door leaf driven by the bearing wheel from falling out of the guide rail during the lateral movement, the closed door of the rail vehicle of the present invention also includes a rolling balance wheel connected with the door carrying frame and arranged in the sliding groove under the guide rail.

In order to guide the bearing wheel in the guide rail and compress the bearing wheel during the locking process, so that the seal on the door leaf can be more tightly sealed with the car body, it also includes a wedge block installed above the bearing wheel in the guide rail. Preferably, the high end of the wedge block corresponds to the direction of movement when the door leaf is locked, and the number of the wedge block can be determined according to the number of bearing wheels. Preferably, it is arranged above the bearing wheels at both ends of the guide rail after the door leaf is locked. .

There can be multiple bearing wheels on the guide rail. In order to make the multiple bearing wheels on the guide rail sink at the same time during the locking process, so that the door leaf can press the sealing strip as a whole to enhance the sealing effect. The number of bearing wheels is the same.

In order to increase the sealing effect, the sealing element on the door leaf includes a second sealing rubber strip, a second sealing rubber strip and a third sealing rubber strip on the top, side and bottom surfaces of the door leaf. A sealing bracket and a fourth sealing rubber strip that are matched with the first sealing rubber strip and the second sealing rubber strip after the door leaf is locked are respectively arranged.

Further, the depth of the groove is at least matched with the pressing force of the sealing strip in the longitudinal direction of the door leaf.

For the second purpose of the invention, the bottom of the door leaf of the closed door for rail vehicles of the present invention is inserted between the outer door sill and the inner door sill, and the bottom of the door leaf is equipped with a sliding block for driving the door leaf to slide between the inner and outer door sills. The length is 1/3 to 1/2 of the width of the doorway.

In order to reduce the wear between the sliding block and the inner and outer door sills, anti-wear strips are installed on both sides of the sliding block.

In order to realize the positioning of the door leaf, the closed door of the present invention also includes a stop seat installed at the end of the inner door sill or the outer door sill. The stop seat is installed at the bottom of the door leaf to cooperate with the stop seat to realize positioning when the door leaf is opened. plug.

Beneficial effects: Compared with the prior art, the present invention can achieve the following beneficial effects: 1. The airtight door of the present invention sinks as a whole after the door leaf is locked, and the door leaf and the vehicle body are squeezed and fit to enhance the sealing effect. 2. Avoid the impact of the V-shaped phenomenon of the door, the lateral movement and longitudinal movement of the door leaf in the opening and closing process ensure the sealing effect of the door leaf on the vehicle body as a whole; 3. The closed door of the present invention only needs The groove can be set when the guide rail is made, the process is simple, and it is suitable for large-scale promotion and application.

Description of the drawings

Figure 1 is a perspective view of the door leaf of the present invention in an open state;

Figure 2 is a schematic plan view of the door leaf of the present invention in an open state;

Figure 3 is a schematic diagram of the door leaf of the present invention in a closed state;

4 is a schematic diagram of the structure of the guide rail and the door carrying frame of the present invention;

Figure 5 is a schematic diagram of the bottom slider of the door leaf of the present invention;

Fig. 6 is a schematic diagram of the stop seat and stop pin of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the drawings and specific implementations of the specification.

Example

The closed door for rail vehicles of the present invention is shown in Figures 1 to 6, in which: 1. pressure wheel; 2. load bearing wheel; 3. door frame; 4. door leaf; 5. guide rail; 6. second seal Rubber strip; 7, wedge block; 8, balance wheel; 9, first sealing strip; 10, sealing bracket; 11, door frame; 12, fourth sealing strip; 13, anti-wear strip; 14, outer door sill; 15 , Inner threshold; 16, the third sealing strip; 17, slider; 18, stop pin; 19, stop seat; 20, groove; 21, chute. The closed door includes a door leaf 4; a door carrying frame 3 connected with the door leaf 4; a guide rail 5 installed above the door leaf 4; three bearing wheels 2 connected with the door carrying frame 3 to drive the door leaf 4 to move in the guide rail 5. ; In order to increase the binding force of the door leaf 4 and the carrying wheel 2, a pressing wheel 1 for pressing the door leaf 4 is installed on the door carrying frame 3; in order to prevent the door leaf 4 from falling out of the guide rail 5 during the movement, and carrying the door The frame is connected to the rollable balance wheel 8 in the chute 21 under the guide rail 5; in order to guide the bearing wheel 2 and compress the bearing wheel 2, two wedge blocks 7 are installed above the bearing wheel 2 in the guide rail 5, respectively. On the bearing wheels 2 at both ends after being locked; the first sealing rubber strip 9, the second sealing rubber strip 6 and the third sealing rubber strip 16 are respectively arranged on the top, side and bottom surfaces of the door leaf 4. The body is respectively provided with a sealing bracket 10 and a fourth sealing strip 12 that are matched with the first sealing strip 9 and the second sealing strip 6 after the door leaf 4 is locked; the guide rail 5 is provided with three for the door The groove 20 of the page 4 that produces longitudinal displacement during the lateral movement. The number of grooves 20 is determined by the number of the bearing wheels 2; the position of the groove 20 corresponds to the position of the bearing wheel 2 after the door leaf 4 is locked, so that the door leaf 4 After locking, the bearing wheels 2 are respectively in the grooves 20; the depth of the grooves 20 matches the compressive force that the sealing strips on the top and bottom surfaces of the door leaf 4 can withstand, and the depth of the grooves in this embodiment is 5mm; After the door leaf 4 is locked, the bearing wheel 2 rolls into the groove 20 and is pressed by the wedge block 7 to sink the door leaf 4 as a whole. The sinking distance is the depth of the groove 5mm, and the top surface and bottom surface of the door leaf 4 The first sealant strip 9 and the third sealant strip 16 are respectively pressed against the bottom surface of the car body corresponding to the bottom of the sealing bracket 10 and the door leaf 4 to lock the second sealing strip 6 on the side of the rear door leaf 4 and the car body The corresponding fourth sealing strip 12 is pressed tightly to realize the sinking locking of the door leaf 4 to enhance the sealing effect of the door leaf 4 and the vehicle body.

In order to reduce the guide part at the bottom of the door leaf 4 occupies more floor space in the car, which is not conducive to some special and narrow rail vehicle requirements, the bottom of the door leaf 4 of the closed door of the rail vehicle of the present invention is inserted into the outer door sill 14 and the inner door sill 15 In between, a sliding block 17 is installed at the bottom of the door leaf 4 to drive the door leaf 4 to slide between the outer door sill 14 and the inner door sill 15. The length of the sliding block 17 is 1/3 to 1/2 of the width of the door leaf 4. In order to reduce the wear between the slider 17 and the outer door sill 14 and the inner door sill 15, wear-resistant strips 13 are provided on both sides of the slider 17. In order to realize the positioning of the door leaf 4, the airtight door of the present invention also includes a stop seat 19 installed at the end of the inner door sill 15 or the outer door sill 14 and installed at the bottom of the door leaf 4 to cooperate with the stop seat 19 to realize the door leaf 4 Stop pin 18 for positioning when opening.

Claims

A closed door for rail vehicles, which is characterized by comprising a door leaf (4), a door carrying frame (3) connected to the door leaf (4), a guide rail (5) above the door leaf (4), and a door carrying frame ( 3) Connect the bearing wheel (2) used to drive the door leaf (4) to move in the guide rail (5), and the groove (20) on the guide rail (5) for the door leaf (4) to produce longitudinal displacement during the lateral movement. ), the seal on the door leaf (4) for sealing with the car body.
The rail vehicle closed door according to claim 1, characterized in that it further comprises a chute (21) connected with the door carrying frame (3) to prevent the bearing wheel (2) from falling out of the guide rail (5). ) Rollable balance wheel (8) inside.
The closed rail vehicle door according to claim 1, characterized in that it further comprises a wedge block (7) installed above the bearing wheel (2) in the guide rail (5) for guiding and pressing the bearing wheel (2).
The rail vehicle closed door according to claim 1, wherein the number of the grooves (20) is the same as the number of the bearing wheels (2).
The closed rail vehicle door according to claim 1, wherein the position of the groove (20) corresponds to the position of the bearing wheel (2) after the door leaf (4) is locked.
The rail vehicle closed door according to claim 1, characterized in that the seal on the door leaf (4) comprises a second sealant on the top, side and bottom surfaces of the door leaf (4) respectively Strips (9), second sealing strips (6) and third sealing strips (16). The vehicle body is respectively provided with the first sealing strips (9) and second sealing strips (6) at the door After the page (4) is locked, the matched sealing bracket (10) and the fourth sealing rubber strip (12).
The closed rail vehicle door according to claim 6, characterized in that the depth of the groove (20) is at least matched with the pressing force of the sealing strip in the longitudinal direction of the door leaf (4).
The rail vehicle closed door according to claim 1, wherein the bottom of the door leaf (4) is inserted between the outer door sill (14) and the inner door sill (15), and the bottom of the door leaf (4) is installed for A sliding block (17) that drives the door leaf (4) to slide between the inner and outer door sills, and the length of the sliding block (17) is 1/3 to 1/2 of the width of the door leaf (4).
The closed rail vehicle door according to claim 8, characterized in that there are anti-wear strips (13) on both sides of the sliding block (17).
The rail vehicle closed door according to claim 1, characterized in that it further comprises a stop seat (19) installed at the end of the inner door sill (15) or the outer door sill (14), installed at the bottom of the door leaf (4) and The stop seat (19) is matched with a stop pin (18) used to realize positioning when the door leaf (4) is opened.