WO2019001056A1

WO2019001056A1 - Docking connection mechanism and rail transport system

Info

Publication number: WO2019001056A1
Application number: PCT/CN2018/081251
Authority: WO
Inventors: 邓义昭; 李明杰; 刘乾; 吴巍巍
Original assignee: 比亚迪股份有限公司
Priority date: 2017-06-30
Filing date: 2018-03-30
Publication date: 2019-01-03
Also published as: CN206986629U

Abstract

A docking connection mechanism (100) and a rail transport system comprising the docking connection mechanism (100). The docking connection mechanism (100) comprises: a collision plate (1), adapted to be provided on a fixed beam (300), the running surface of the collision plate (1) comprising a plane (12) extending horizontally and two inclined surfaces (11), the two inclined surfaces (11) being respectively connected to two ends of the plane (12), and the two inclined surfaces (11) extending obliquely downward in a direction away from each other; a connection base (2), adapted to be provided on a moving beam (200), two pivot shafts (9) being provided on the connection base (2), the two pivot shafts (9) being distributed at an interval in the length direction of the collision plate (1); a movable connection plate (3), positioned above the collision plate (1), one end of the movable connection plate (3) being rotatably provided on the connection base (2), the movable connection plate (3) being rotatable between an separation position and a docking position; and a cam mechanism, the cam mechanism being configured to push, when running on the running surface, the movable connection plate (3) to rotate upward.

Description

Docking connection mechanism and rail transit system

Technical field

The present disclosure relates to the field of rail transit technology, and in particular to a docking connection mechanism and a rail transit system.

Background technique

In the related art, the movable beam and the fixed beam are respectively provided with finger-shaped connecting plates having slopes on the sides, and the fingers of the two-finger connecting plates are staggered. When the fixed beam and the movable beam are butted, the two finger-shaped connecting plates are inclined to move the finger connecting plate of the movable beam, and during the further movement of the movable beam, the fingers of the two finger connecting plates when the beam is docked The shapes are staggered, and the finger plates of the movable beam fall back to the fingers of the finger connecting plates of the fixed beam to achieve overlap. This type of setting has at least the following shortcomings: 1) When the butt joint is offset, the movable finger plate cannot fall back, the connecting surface of the running surface is lifted, which threatens driving safety; 2) the movable beam and the fixed beam before docking At a certain angle, the movable beam is further rotated to achieve docking. In order to ensure that the end faces do not interfere when the finger plates rotate relative to each other, it is required to reserve a large distance between the fingers of the finger plates to complete the gap between the end faces of the butt joints. Larger, affecting the continuity and stability of the vehicle; 3), the flatness of the fascia of the fingerboard is not good, the stability of the vehicle passing through is poor; 4), the direct collision of the two finger plates is staggered, the impact is large, and the noise is large. , reducing the life of the device.

Summary of the invention

The present disclosure is intended to address at least one of the technical problems existing in the prior art. To this end, the present disclosure proposes a docking connection mechanism for a ballast.

The present disclosure also proposes a rail transit system.

A docking connection mechanism for a ballast according to an embodiment of the present disclosure includes: a collision plate adapted to be disposed on the fixed beam, the running surface of the collision plate including a horizontally extending plane and two slopes, The two inclined faces are respectively connected to the two ends of the plane, the two inclined faces extending obliquely downward in a direction away from each other; the connecting seat, the connecting seat is adapted to be disposed on the movable beam, The connecting seat is provided with two pivoting shafts, and the two pivoting shafts are spaced apart in the longitudinal direction of the impacting plate; the movable connecting plate is located above the impacting plate, and the movable connecting plate is One end is rotatably disposed on the connecting seat, the movable connecting plate is rotatable between a retracted position and a docking position; and a cam mechanism configured to push the activity when driving on the running surface The connecting plate is rotated upwards.

According to the docking connection mechanism of the embodiment of the present disclosure, the reliability of the docking and the smoothness, continuity and safety of the vehicle when passing through the switch can be greatly improved, and the impact force during the docking process is low.

According to some embodiments of the present disclosure, the cam mechanism includes two cams that are rotatably respectively sleeved on the two pivot shafts and below the movable connecting plate, under the movable connecting plate a surface and a peripheral wall of each of the cams are always in contact, and a lower end of each of the cams is provided with a connecting shaft, and each of the connecting shafts is provided with a rotatable roller, and a lowermost end of the rolling surface of the roller is located at Below the lowermost end of the cam, the distance between the two connecting shafts is greater than the length of the impact plate, and in the docking position, the lowermost end of the rolling surface of the roller is not higher than the lowermost end of the plane And a portion of the outer peripheral wall of the cam that is the shortest distance from the central axis of the connecting shaft is in contact with the lower surface of the movable connecting plate.

According to some embodiments of the present disclosure, the two connecting shafts are connected by a connecting rod.

According to some embodiments of the present disclosure, the cam has a scalloped surface.

According to some embodiments of the present disclosure, the connecting base includes two sub-seats, each of which is provided with one pivot shaft, and two ends of the movable connecting plate are rotatably connected to the Two sub-seats.

According to some embodiments of the present disclosure, the connecting seat is provided with a limiting portion for restricting a rotating direction of the movable connecting plate.

According to some embodiments of the present disclosure, the movable connecting plate includes a connecting portion and a docking portion connected to the connecting portion, the connecting portion is rotatably connected to the connecting seat, and in the docking position, the docking The portion is docked with the fixed beam.

Specifically, the connecting portions are two spaced apart.

According to some embodiments of the present disclosure, the docking connection mechanism further includes a fixing plate fixed to the movable beam, the connecting seat being provided on the fixing plate.

A rail transit system according to an embodiment of the present disclosure includes the docking connection mechanism described above.

According to the rail transit system of the embodiment of the present disclosure, by providing the above-mentioned butt joint mechanism, the reliability of docking and the stability, continuity and safety of the vehicle when passing through the switch can be greatly improved, and the impact force during the docking process is low. .

DRAWINGS

The above and/or additional aspects and advantages of the present disclosure will become apparent and readily understood from

1 is a top plan view of a docking connection mechanism in accordance with some embodiments of the present disclosure;

2 is a front elevational view of a docking connection mechanism in accordance with some embodiments of the present disclosure;

Figure 3 is a cross-sectional view of the docking connection mechanism shown in Figure 3 taken along the line A-A;

4-13 illustrate a process in which the fixed beam and the movable beam of the embodiment of the present disclosure are separated from each other, wherein FIG. 5 is a cross-sectional view of the docking connection mechanism of FIG. 4 in the BB direction, and FIG. 7 is the docking connection mechanism of FIG. 9 is a cross-sectional view of the butt joint mechanism of FIG. 8 in the DD direction, FIG. 11 is a cross-sectional view of the butt joint mechanism of FIG. 10 in the EE direction, and FIG. 13 is a cross-sectional view of the butt joint mechanism of FIG. 11 along the FF direction. .

Reference mark:

Docking connection mechanism 100;

Collision plate 1; bevel 11; plane 12;

Connecting seat 2;

Movable connecting plate 3; connecting portion 31; docking portion 32;

Cam 4; connecting shaft 5; roller 6;

Fixing plate 7; connecting rod 8; pivoting shaft 9;

The movable beam 200; the fixed beam 300.

Detailed ways

The embodiments of the present disclosure are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative only, and are not to be construed as limiting.

In the description of the present disclosure, it is to be understood that the terms "center", "length", "width", "upper", "lower", "left", "right", "vertical", "horizontal", The orientation or positional relationship of the "top", "bottom", "inside", "outer", "axial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present disclosure. The simplification of the present disclosure is not to be construed as a limitation or limitation. Furthermore, features defining "first" and "second" may include one or more of the features, either explicitly or implicitly. In the description of the present disclosure, "a plurality of" means two or more unless otherwise stated.

In the description of the present disclosure, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meanings of the above terms in the present disclosure can be understood in the specific circumstances by those skilled in the art.

A docking connection mechanism 100 for a ballast including a fixed beam 300 and a movable beam 200 according to an embodiment of the present disclosure will be described below with reference to FIGS. Among them, the movable beam 200 can move relative to the fixed beam 300.

As shown in FIGS. 1 to 13, a docking connection mechanism 100 for a switch according to an embodiment of the present disclosure includes a collision plate 1, a connecting seat 2, a movable connecting plate 3, and a cam mechanism.

The impact plate 1 is adapted to be disposed on the fixed beam 300, and the running surface of the collision plate 1 includes a horizontally extending flat surface 12 and two inclined surfaces 11. The two inclined faces 11 are respectively connected to both ends of the plane 12, and the two inclined faces 11 extend obliquely downward in a direction away from each other. The connecting seat 2 is adapted to be arranged on the movable beam 200. The connecting base 2 is provided with two pivoting shafts 9, which are spaced apart in the longitudinal direction of the impacting plate 1.

The movable connecting plate 3 is located above the collision plate 1, and one end of the movable connecting plate 3 is rotatably provided on the connecting seat 2, and the movable connecting plate 3 is rotatable between the avoiding position and the docking position, and the cam mechanism is configured to be on the running surface Push the movable connecting plate 3 upward when driving.

The docking connection mechanism 100 for a switch according to an embodiment of the present disclosure is configured to rotatably mount the movable connecting plate 3 on the connecting base 2, and configured the cam mechanism to push the movable connecting plate 3 upward when traveling on the running surface, Thus, when moving from the avoidance position to the docking position, the movable connecting plate 3 can be directly rotated from top to bottom to overlap with the fixed beam 300 to achieve upper and lower overlap, which can greatly improve the reliability of the docking and the smoothness of the vehicle when passing through the switch. Good sex and safety. At the same time, the problem of large impact force and high noise in the docking process caused by the collision and friction of the finger plates in the related art is avoided. Moreover, there is no need to separately set the power device during the docking process, and the stability is high. In addition, the docking connection mechanism 100 in the above embodiment also avoids the problem that the finger plate cannot fall back due to the misalignment of the two finger plates in the related art, and the gap between the two end faces of the finger plate is large, and the vehicle passes through the smooth Poor sex and continuity.

A docking connection mechanism 100 for a switch according to an embodiment of the present disclosure, wherein the switch includes a movable beam 200 and a fixed beam 300 for implementing the fixed beam 300 and the movable beam, is described in detail below with reference to FIGS. 200 docking. The movable beam 200 can be moved relative to the fixed beam 300. Optionally, the movable beam 200 is a ballast beam, the fixed beam 300 is a track beam, and the ballast beam and the track beam may be a translational butt joint or a rotary docking.

The collision plate 1 is adapted to be disposed on the fixed beam 300. The running surface of the collision plate 1 includes a horizontally extending plane 12 and two inclined surfaces 11 (ie, a first inclined surface 11a and a second inclined surface 11b), and the two inclined surfaces 11 and the plane 12, respectively The two ends are connected, and the two inclined faces 11 extend obliquely downward in a direction away from each other.

As shown in FIG. 1, FIG. 3, FIG. 5, FIG. 7, FIG. 9, FIG. 11, and FIG. 13, the direction indicated by the arrow X is the longitudinal direction of the collision plate 1, and the two inclined faces 11 are respectively on the collision plate with the plane 12. Both ends of the longitudinal direction of 1 are connected, and the two inclined faces 11 are inclined downward in a direction away from each other. That is, the first inclined surface 11a and the second inclined surface 11b are respectively connected to both ends of the plane 12 in the longitudinal direction of the collision plate 1, and the first inclined surface 11a and the second inclined surface 11b are inclined downwardly toward the direction away from each other, respectively. .

The connector 2 is adapted to be disposed on the movable beam 200. For example, as shown in FIG. 1, the docking connection mechanism 100 further includes a fixing plate 7 fixed to the movable beam 200, and the connecting base 2 is provided on the fixing plate 7.

As shown in FIG. 2 to FIG. 13, the connecting base 2 is provided with two pivoting shafts 9 (i.e., a first pivoting shaft 9a and a second pivoting shaft 9b), and the two pivoting shafts 9 are spaced apart in the longitudinal direction of the collision plate 1. . That is, the first pivot shaft 9a and the second pivot shaft 9b are spaced apart in the longitudinal direction of the collision plate 1 and are both provided on the joint base 2.

The movable connecting plate 3 is located above the impact plate 1, and one end of the movable connecting plate 3 is rotatably provided on the connecting base 2, that is, the movable connecting plate 3 is disposed on the connecting base 2 and rotatably disposed relative to the connecting base 2. For example, the connecting base 2 is provided with two sub-seats (ie, the first sub-seat 2a and the second sub-seat 2b), and the first sub-seat 2a is provided with a first pivoting shaft 9a, and the second sub-seat 2b A second pivoting shaft 9b is disposed thereon, and both ends of the movable connecting plate 3, that is, the ends of the movable connecting plate 3 away from the fixed beam 300 are rotatably fixed to the two sub-seats, respectively.

The movable connecting plate 3 is rotatable between the avoiding position and the docking position. In the avoiding position, the movable connecting plate 3 is spaced apart from the fixed beam 300. In the docking position, the movable connecting plate 3 abuts against the fixed beam 300.

Optionally, as shown in FIG. 1, the movable connecting plate 3 includes a connecting portion 31 and an abutting portion 32 connected to the connecting portion 31. The connecting portion 31 is rotatably connected to the connecting base 2, and in the docking position, the abutting portion 32 and the fixing portion are fixed. The beam 300 is butted, and in the escape position, the abutment 32 is spaced apart from the fixed beam 300. Thereby, the structure is simple.

The connecting portion 31 may be two spaced apart, and the two connecting portions 31 are optionally in one-to-one correspondence with the two sub-seats, and each connecting portion 31 is rotatably connected to the corresponding sub-seat.

The cam mechanism is configured to urge the movable link 3 to rotate upward when traveling on the running surface. The cam mechanism comprises two cams 4, which are respectively rotatably fitted over the two pivoting shafts 9 and below the movable web 3. That is, the first cam 4a is rotatably fitted over the first pivot shaft 9a, the second cam 4b is rotatably fitted over the second pivot shaft 9b, and the first cam 4a and the second cam 4b are simultaneously in the movable connection Below the board 3.

Optionally, the cam 4 has a scalloped surface. The center of the pivot shaft 9 is located on the axis of symmetry of the sector and away from the center of the sector.

The lower surface of the movable connecting plate 3 and the outer peripheral wall of each cam 4 are always in contact, that is, in the process of switching from the avoiding position to the docking position, or in the process of switching from the docking position to the avoiding position, the movable connecting plate 3 The lower surface is always in contact with the outer peripheral wall of each cam 4.

The lower end of each cam 4 is provided with a connecting shaft 5, and each connecting shaft 5 is provided with a rotatable roller 6. That is, the lower end of the first cam 4a is provided with a first connecting shaft 5a, the first connecting shaft 5a is provided with a rotatable first roller 6a, and the lower end of the second cam 4b is provided with a second connecting shaft 5b, second The connecting shaft 5b is provided with a rotatable second roller 6b. Thereby, the roller 6 is rotatable relative to the cam 4.

The first connecting shaft 5a and the second connecting shaft 5b are connected by a connecting rod 8, whereby the linkage of the two cams 4 can be achieved.

The lowermost end of the rolling surface of the roller 6 is located below the lowermost end of the cam 4 such that when the roller 6 travels on the collision plate 1, the lower end of the cam 4 is spaced apart from the collision plate 1 to facilitate the reduction of friction.

The distance between the two connecting shafts 5 is greater than the length of the impact plate 1, and in the escape position, the portion of the outer peripheral wall of the cam 4 that is longer than the central axis of the connecting shaft 5 (for example, the longest portion) and The lower surface of the movable web 3 is in contact; in the docking position, the lowermost end of the rolling surface of the roller 6 is not higher than the lowermost end of the plane 12, and the distance between the outer peripheral wall of the cam 4 and the central axis of the connecting shaft 5 is the shortest. The portion is in contact with the lower surface of the movable connecting plate 3, so that in the docking position, the two rollers 6 are respectively located on both sides in the longitudinal direction of the impact plate 1, so that the movable connecting plate 3 is butted against the fixed beam 300.

Optionally, the connecting seat 2 is provided with a limiting portion for limiting the direction of rotation of the movable connecting plate 3. For example, the limit portion can be a sleeve. By providing the limiting portion, the movable connecting plate 3 can only be rotated upward, thereby preventing the movable connecting plate 3 from rotating downward.

As shown in FIGS. 4 to 5, during the movement of the movable beam 200 relative to the fixed beam 300, since the first inclined surface 11a is an inclined inclined surface 11, and the lower surface of the movable connecting plate 3 is always and the outer peripheral wall of each cam 4 Contacting such that when the first roller 6a rolls along the first slope 11a, the distance between the first roller 6a and the movable connecting plate 3 changes, and the gravity of the movable connecting plate 3 is exerted on the two cams 4, so that The two cams 4 are rotated such that a portion of the outer peripheral wall of the cam 4 that is longer than the central axis of the connecting shaft 5 is in contact with the lower surface of the movable connecting plate 3, so that the movable connecting plate 3 is rotated upward to be fixed away from the fixed Beam 300.

As shown in FIG. 6 to FIG. 7, when the first roller 6a travels on the plane 12, since the distance between the first roller 6a and the movable connecting plate 3 does not change, the movable connecting plate 3 is always maintained at the avoidance fixing. The state of the beam 300 avoids collisions with the fixed beam 300.

As shown in FIGS. 8-9, when the first roller 6a travels to the second inclined surface 11b and moves away from the second inclined surface 11b, the collision plate 1 is located between the two rollers 6, and the cam 4 is swung to the cam 4 The portion of the outer peripheral wall which is the shortest distance from the central axis of the connecting shaft 5 is in contact with the lower surface of the movable connecting plate 3, and the movable connecting plate 3 is rotated downward and abuts against the fixed beam 300.

After the docking, the second roller 6b travels to the first slope 11a during the movement of the movable beam 200 relative to the fixed beam 300. Since the first inclined surface 11a is the inclined inclined surface 11, and the lower surface of the movable connecting plate 3 is always in contact with the outer peripheral wall of each cam 4, when the second roller 6b rolls along the first inclined surface 11a, the second roller 6b is The distance between the movable connecting plates 3 changes. And the gravity of the movable connecting plate 3 is applied to the two cams 4 such that the two cams 4 are rotated to a portion such that the distance between the outer peripheral wall of the cam 4 and the central axis of the connecting shaft 5 is long and the movable connecting plate 3 The lower surface contacts are contacted to effect the movable web 3 to rotate upwardly away from the fixed beam 300.

As shown in FIGS. 10-11, when the second roller 6b travels on the plane 12, since the distance between the second roller 6b and the movable connecting plate 3 does not change, the movable connecting plate 3 is always maintained at the avoiding fixing beam. The state of 300, thereby avoiding collision with the fixed beam 300.

As shown in FIGS. 12-13, when the second roller 6b travels to the second inclined surface 11b and moves away from the second inclined surface 11b, the movable connecting plate 3 completely leaves the docking position, and the cam 4 is swung to the outer peripheral wall of the cam 4. The portion having the shortest distance from the central axis of the connecting shaft 5 is in contact with the lower surface of the movable connecting plate 3, and the movable connecting plate 3 is rotated downward to the horizontal position, thereby achieving separation of the movable beam 200 from the fixed beam 300.

According to the docking connection mechanism 100 for a switch according to an embodiment of the present disclosure, the two cams 4 are rotatably fitted on the two pivot shafts 9 by rotatably mounting the movable connecting plate 3 on the connecting base 2, respectively. It is located below the movable connecting plate 3, while a rotatable roller 6 is arranged on each connecting shaft 5, so that when the roller 6 travels along the collision plate 1 until the impact plate 1 is located between the two rollers 6, the movable connection The plate 3 can be directly rotated from top to bottom to overlap with the fixed beam 300 to achieve upper and lower overlap, which can greatly improve the reliability of the docking and the stability and safety of the vehicle when passing through the switch. At the same time, by the rolling of the roller 6 on the collision plate 1 instead of the collision and friction of the finger plate in the related art, the impact force in the docking process can be greatly reduced, and the noise can be reduced. Moreover, there is no need to separately set the power device during the docking process, and the stability is high. In addition, the docking connection mechanism 100 in the above embodiment also avoids the problem that the finger plate cannot fall back due to the misalignment of the two finger plates in the related art, and the gap between the two end faces of the finger plate is large, and the vehicle passes through the smooth Poor sex and continuity.

That is to say, according to the docking connection mechanism 100 of the embodiment of the present disclosure, the reliability of the docking and the smoothness, continuity and safety of the vehicle when passing through the switch can be greatly improved, and the impact force during the docking process is low.

A rail transit system according to an embodiment of the present disclosure is described below.

A rail transit system according to an embodiment of the present disclosure includes the docking connection mechanism 100 described above.

According to the rail transit system of the embodiment of the present disclosure, by providing the above-described docking connection mechanism 100, the reliability of the docking and the stability, continuity and safety of the vehicle when passing through the switch can be greatly improved, and the impact force and noise during the docking process can be greatly improved. small.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. Particular features, structures, materials or features described in the examples or examples are included in at least one embodiment or example of the present disclosure. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the disclosure is defined by the claims and their equivalents.

Claims

A docking connection mechanism for a ballast, the ballast comprising a movable beam and a fixed beam, wherein the docking connection mechanism comprises:

a collision plate, the collision plate is adapted to be disposed on the fixed beam, the running surface of the collision plate includes a horizontally extending plane and two inclined surfaces, and the two inclined surfaces are respectively connected to the two ends of the plane, The two inclined faces extend obliquely downward in a direction away from each other;

a connecting seat, the connecting seat is adapted to be disposed on the movable beam, wherein the connecting seat is provided with two pivoting shafts, and the two pivoting shafts are spaced apart in the longitudinal direction of the impacting plate;

a movable connecting plate, the movable connecting plate is located above the collision plate, one end of the movable connecting plate is rotatably disposed on the connecting seat, and the movable connecting plate is rotatable between a avoiding position and a docking position ;

A cam mechanism configured to urge the movable link to rotate upward when traveling on the running surface.
A docking connection mechanism for a switch according to claim 1, wherein said cam mechanism includes two cams, said two cams being rotatably respectively fitted over said two pivot shafts and located at said Below the movable connecting plate, the lower surface of the movable connecting plate and the outer peripheral wall of each of the cams are always in contact, and the lower end of each of the cams is provided with a connecting shaft, and each of the connecting shafts is provided with a rotatable a roller, a lowermost end of the rolling surface of the roller is located below a lowermost end of the cam, a distance between the two connecting shafts is greater than a length of the collision plate, and the roller is rolled at the docking position The lowermost end of the face is not higher than the lowermost end of the plane, and the portion of the outer peripheral wall of the cam that is the shortest between the central axis of the connecting shaft is in contact with the lower surface of the movable connecting plate.
The docking connection mechanism for a switch according to claim 2, wherein the two connecting shafts are connected by a link.
A docking connection mechanism for a switch according to claim 2 or 3, wherein the cam has a sector.
The docking connection mechanism for a switch according to any one of claims 1 to 4, wherein the connecting base comprises two sub-seats, and each of the sub-seats is provided with one of the pivot shafts The two ends of the movable connecting plate are rotatably connected to the two sub-seats, respectively.
The docking connection mechanism for a switch according to any one of claims 1 to 5, characterized in that the connecting seat is provided with a stopper for restricting a rotation direction of the movable connecting plate.
The docking connection mechanism for a switch according to any one of claims 1 to 6, wherein the movable connecting plate includes a connecting portion and an abutting portion connected to the connecting portion, the connecting portion being rotatable Grounded to the connector, in the docking position, the docking portion interfaces with the fixed beam.
The docking connection mechanism for a switch according to claim 7, wherein the connecting portion is two spaced apart.
The docking connection mechanism for a ballast according to any one of claims 1 to 8, further comprising a fixing plate fixed to the movable beam, the connecting seat being provided at the fixing On the board.
A rail transit system characterized by comprising a docking connection mechanism according to any one of claims 1-9.