Balancing mechanism for through channel

Abstract

The utility model discloses a balance mechanism for a through passage, belongs to the technical field of through passages of rail transit vehicles, and is used for solving the technical problems of complex structure and large occupied space of the balance mechanism in the prior art. The balance mechanism comprises a traction elastic reset piece and installation bases hinged to the two ends of the traction elastic reset piece through pin shafts respectively, one end of the traction elastic reset piece is connected with a vehicle body through the installation bases, and the other end of the traction elastic reset piece is connected with a butt joint frame. In the working state, after the folding shed is stretched in a split mode, the traction elastic reset piece pulls the butt-joint frame to reset towards the direction of the vehicle body between the vehicle body and the butt-joint frame, and the folding shed resetting device has the advantages of being simple in structure, small in occupied space, rapid and stable in resetting and good in folding shed resetting effect.

Description

Technical Field

[0001] The utility model relates to the technical field of the gangway of rail transit vehicles, in particular to a balance mechanism for a gangway. Background Art

[0002] In recent years, the rail vehicles in China have developed rapidly, and the application of subway vehicles has increased day by day. Especially, the number of Type A subway vehicles has increased year by year. The gangway of Type A vehicles mostly adopts a split structure, with a docking frame in the middle. The gangway tread plate is installed on the docking frame. After the vehicle passes through a curve, the docking frame needs to quickly return to the correct position to ensure that the tread plate can return to the centered position. Therefore, a balance mechanism for the gangway is required, and the balance mechanism can ensure that the docking frame is in the centered position between the two ends of the vehicle under any working conditions, and can ensure that the tread plate does not have the phenomena of flashing and disconnection. At present, the traditional balance mechanism is usually in the form of a wire rope pulley group with a tension spring, which has the disadvantages of complex structure and large required space.

[0003] Therefore, in view of the above problems, it is necessary for the utility model to provide a balance mechanism for a gangway with simple structure, small occupied space and good return effect of the gangway. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the defects existing in the prior art and provide a balance mechanism for a gangway, which is used to solve the problems of complex structure and large occupied space of the balance mechanism in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The balance mechanism for a gangway disclosed by the utility model is installed in the folding shed body of the gangway, and includes: a pulling elastic reset member, and mounting seats respectively hinged to both ends of the pulling elastic reset member through pin shafts. One end of the pulling elastic reset member is connected to the vehicle body through the mounting seat, and the other end is connected to the docking frame.

[0007] In the working state, after the folding shed body extends, the pulling elastic reset member pulls the docking frame to reset towards the vehicle body direction between the vehicle body and the docking frame.

[0008] Further, the upper part of the mounting seat has a mounting portion for mounting the pin shaft. The mounting portion contacts the hanging plate fixedly connected to the end of the pulling elastic reset member through a wearing part. The hanging plate is provided with a through hole connected to the pin shaft.

[0009] Further, the mounting portion is formed with a mounting groove, and the wearing part with a matching structure is installed in the mounting groove. The hanging plate can be inserted into the U-shaped opening of the wearing part.

[0010] Further, it further includes an adapter base, which has a first adapter surface and a second adapter surface that is not parallel to the first adapter surface. The second adapter surface is attached to the docking frame, and the first adapter surface is attached to the lower surface of the mounting base.

[0011] Further, the pulling elastic reset member is a tension spring or an elastic cord.

[0012] Further, the two groups of pulling elastic reset members are symmetrically arranged to form a four-point positioning and pulling folding shed split body.

[0013] Further, the three groups of pulling elastic reset members are spaced apart to form a six-point positioning and pulling folding shed split body.

[0014] Further, for the three groups of pulling elastic reset members, two of the pulling elastic reset members are symmetrically arranged, and the other group of pulling elastic reset members is installed on the top of the folding shed split body.

[0015] Further, the four groups of pulling elastic reset members are symmetrically arranged at intervals to form an eight-point positioning and pulling folding shed split body.

[0016] In the above technical solution, for the balance mechanism for the through-channel provided by the present utility model, the beneficial effects are as follows:

[0017] Compared with the prior art, the balance mechanism for the through-channel designed by the present utility model includes a pulling elastic reset member and a mounting base. The two ends of the pulling elastic reset member are movably connected to the mounting base through a pin shaft. One end of the pulling elastic reset member is connected to the vehicle body through the mounting base, and the other end is connected to the docking frame, realizing that the pulling elastic reset member directly pulls the docking frame to reset towards the vehicle body direction between the vehicle body and the docking frame. The structure is simple, the occupied space is small, the return is rapid and stable, and the folding shed reset effect is effectively improved;

[0018] Secondly, the mounting base contacts the pulling elastic reset member through a wear part, effectively prolonging the service life of the mounting base and the pulling elastic reset member, thereby reducing the maintenance cost;

[0019] In addition, the balance mechanism further includes an adapter base. The mounting base at the docking frame end of the pulling elastic reset member is connected to the docking frame through the adapter base. By changing the installation direction of the mounting base through the adapter base, the swing of the pulling elastic reset member on the adapter base is away from the limit position and swings in the middle of the effective swing stroke, thereby ensuring the reliability of the balance mechanism and reducing the failure rate. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is an axonometric view of the balance mechanism for the through passage disclosed by the present utility model;

[0022] Figure 2 is a top view full cross-sectional view of the assembled state of the balance mechanism for the through passage and the through passage disclosed by the present utility model;

[0023] Figure 3 is a left view full cross-sectional view of the assembled state of the balance mechanism for the through passage and the through passage disclosed by the present utility model;

[0024] Figure 4 is a top view cross-sectional view of another embodiment of the assembled state of the balance mechanism for the through passage and the through passage disclosed by the present utility model;

[0025] Figure 5 is a left view full cross-sectional view of another embodiment of the assembled state of the balance mechanism for the through passage and the through passage disclosed by the present utility model;

[0026] Figure 6 is Figure 5 an axonometric view of the overall structure of the through passage.

[0027] Explanation of reference numerals:

[0028] 1. Tension elastic reset member; 11. Hanging plate; 2. Pin shaft; 3. Mounting seat; 31. Mounting part; 32. Mounting groove; 4. Wear part; 5. Adapter seat; 51. First adapter surface; 52. Second adapter surface; 6. Split pin;

[0029] 100. Docking frame; 101. Bellows split body; 102. Pedal; 103. Transition plate;

[0030] 200. Vehicle body. Detailed implementation manners

[0031] To enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0032] See Figures 1-6 as shown;

[0033] Balancing mechanism for utility model gangway, which is installed in the folding shed split body 101 of the gangway. The gangway is a split gangway for type A vehicles in the prior art. The two folding shed split bodies 101 of the gangway are connected by a docking frame 100. The end of the folding shed split body 101 away from the docking frame 100 is fixedly connected to the end wall of the vehicle body. Balancing mechanisms for the gangway are respectively installed on both sides inside the two folding shed split bodies 101;

[0034] See Figure 1 , 2 as shown:

[0035] This balancing mechanism includes: a pulling elastic reset member 1, a pin shaft 2, and a mounting seat 3;

[0036] Both ends of the pulling elastic reset member 1 are respectively hinged to the mounting seat 3 through the pin shaft 2. The pulling elastic reset member 1 and the mounting seat 3 can move relative to each other around the pin shaft 2. Inside the folding shed split body 101 of the gangway, one end of the pulling elastic reset member 1 is connected to the vehicle body through the mounting seat 3, and the other end is connected to the docking frame 100. In the working state, after the folding shed extends, the pulling elastic reset member 1 directly pulls the docking frame 100 to reset towards the vehicle body direction between the vehicle body and the docking frame 100.

[0037] See Figure 1 as shown:

[0038] The upper part of the mounting seat 3 has a mounting portion 31 for mounting the pin shaft 2. The mounting portion 31 contacts the hanging plate 11 fixedly connected to the end of the pulling elastic reset member 1 through the wear part 4. The hanging plate 11 is provided with a through hole connected to the pin shaft 2. The lower surface of the mounting seat 3 fits with the vehicle body or the docking frame 100, and through holes for mounting bolts are provided on both sides of the mounting portion 31. The mounting seat 3 is detachably connected to the vehicle body or the docking frame through bolts.

[0039] In order to avoid increased failure rate caused by wear due to relative movement between the mounting seat 3 and the pulling elastic reset member 1, see Figure 1 as shown. In this structure, the mounting seat 3 is a casting, and its structure is a T-shaped structure, and the mounting portion 31 is formed on the vertical section. The mounting portion 31 is provided with a mounting groove 32, and a wear part 4 with a matching structure is installed in the mounting groove 32. The hanging plate 11 can be inserted into the U-shaped opening of the wear part 4, so that both sides of the hanging plate 11 contact the mounting seat 3 through the wear part 4. The top of the pin shaft 2 has a shoulder. During assembly, the tail end of the pin shaft 2 penetrates through the side wall of the U-shaped groove of the mounting portion 31, the wear part 4, and the hanging plate 11. An opening pin 6 is installed at the end of the pin shaft 2 to prevent the pin shaft 2 from detaching from the mounting seat 3. The material of the wear part 4 can be a nylon material in the prior art or other hard non-metallic wear-resistant materials.

[0040] See Figure 1 as shown:

[0041] The balance mechanism for the gangway also includes an adapter seat 5;

[0042] The adapter seat 5 has a first adapter surface 51 and a second adapter surface 52 that is not parallel to the first adapter surface 51. Specifically, the first adapter surface 51 is perpendicular to the second adapter surface 52. The second adapter surface 52 is attached to the docking frame 100 and fixedly connected to the docking frame through a welding process. The first adapter surface 51 is attached to the ground surface of the mounting seat 3. The mounting seat 3 and the adapter seat 5 are detachably and fixedly connected by a bolt assembly, facilitating the overall removal of the balance mechanism.

[0043] In a preferred embodiment, the pulling elastic reset member 1 is a tension spring or an elastic cord. Specifically, when the pulling elastic reset member 1 is a tension spring, the structure of the tension spring is a tension spring with a straight axis or a tension spring with a bent curved axis. The curved tension spring can guide the stretching deformation path and prevent the tension spring from mechanically interfering with other structural components inside the folding roof.

[0044] See Figure 3 as shown:

[0045] In a preferred embodiment, the balance mechanism for the gangway includes two groups of pulling elastic reset members 1. The two groups of pulling elastic reset members 1 are symmetrically installed on both sides of the gangway and pull the folding roof split body 101 in a four-point positioning manner. That is, inside a folding roof split body 101, the pulling elastic reset members 1 are symmetrically installed on both sides centered on the axis in the vehicle body length direction.

[0046] See Figure 4 as shown:

[0047] To improve the reset effect of the docking frame 100 and achieve quick reset, in a preferred embodiment, this embodiment is basically the same as the above embodiment, except that in this embodiment, it includes three groups of pulling elastic reset members 1. The three groups of pulling elastic reset members 1 are arranged at intervals and pull the folding roof split body 101 in a six-point positioning manner. Among the three groups of pulling elastic reset members 1, two groups of pulling elastic reset members 1 are arranged symmetrically left and right, and the other group of pulling elastic reset members 1 is installed at the middle position on the top of the folding roof split body 101, so that both the left and right sides and the upper part of the folding roof split body 101 are pulled by the pulling elastic reset members 1 to achieve balanced force and quick reset.

[0048] See Figure 5 as shown:

[0049] In order to further improve the reset effect of the docking frame 100, while achieving rapid reset, it is also possible to ensure stability and synchronization. In a preferred embodiment, this embodiment is basically the same as the above-mentioned embodiment, except that this embodiment includes four groups of pulling elastic reset members 1. The four groups of pulling elastic reset members 1 are symmetrically arranged at intervals on the left and right sides of the folding shed body 101, forming an eight-point positioning for pulling the folding shed body 101. It should be noted that the four-point, six-point, and eight-point positioning in the above-mentioned embodiments all refer to the number of endpoints of the pulling elastic reset member 1.

[0050] Among the four groups of pulling elastic reset members 1, two groups of pulling elastic reset members 1 are installed in the folding shed body 101 at intervals up and down on the same side, and the other two groups are symmetrically arranged on the other side of the folding shed body 101, so that the upper and lower sides of the folding shed body 101 are symmetrically stressed, thereby stably, rapidly, and synchronously pulling the docking frame 100 to reset.

[0051] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A balancing mechanism for a gangway, which is installed in a bellows split body (101) of the gangway, characterized in that: include: A pulling elastic reset member (1), and mounting seats (3) respectively hinged to both ends of the pulling elastic reset member (1) through pins (2); one end of the pulling elastic reset member (1) is connected to the vehicle body through the mounting seat (3), and the other end is connected to the docking frame (100); In the working state, after the bellows split body (101) is extended, the pulling elastic reset member (1) pulls the docking frame (100) between the vehicle body and the docking frame (100) to reset it toward the vehicle body.

2. The balancing mechanism for a through passage according to claim 1, characterized in that ； The upper portion of the mounting seat (3) has a mounting portion (31) for mounting the pin shaft (2); the mounting portion (31) contacts a hanging plate (11) fixedly connected to the end of the pulling elastic reset member (1) through a wear member (4); the hanging plate (11) is provided with a through hole connected to the pin shaft (2).

3. The balancing mechanism for a through passage according to claim 2, It is characterized by: The mounting portion (31) is formed with a mounting groove (32), in which the wear part (4) having a matching structure is mounted, and the hanging plate (11) can be inserted into the U-shaped opening of the wear part (4).

4. The balancing mechanism for a through passage according to claim 1, characterized in that ； It also comprises an adapter seat (5) having a first adapter surface (51) and a second adapter surface (52) which is not parallel to the first adapter surface (51), wherein the second adapter surface (52) is in contact with the docking frame (100), and the first adapter surface (51) is in contact with the lower surface of the mounting seat (3).

5. The balancing mechanism for a through passage according to any one of claims 1 to 4, characterized in that ； The pulling elastic reset element (1) is a tension spring or an elastic pull rope.

6. The balancing mechanism for a through passage according to any one of claims 1 to 4, characterized in that ； The two groups of pulling elastic reset parts (1) are symmetrically arranged to form a four-point positioning pulling bellows split body (101).

7. The balancing mechanism for a through passage according to any one of claims 1 to 4, characterized in that ； The three groups of pulling elastic reset parts (1) are arranged at intervals to form a six-point positioning pulling bellows split body (101).

8. The balancing mechanism for a through passage according to claim 7, characterized in that ； There are three groups of pulling elastic reset components (1), wherein two groups of pulling elastic reset components (1) are symmetrically arranged, and the other group of pulling elastic reset components (1) is installed on the top of the bellows split body (101).

9. The balancing mechanism for a through passage according to any one of claims 1 to 4, characterized in that ； The four groups of pulling elastic reset parts (1) are arranged symmetrically at intervals to form an eight-point positioning pulling bellows split body (101).

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