ramp tieback, throughway

Abstract

The application discloses a kind of crossing plate pull rod, belong to rail vehicle through passage technical field, the application includes the center pin shaft being connected with crossing plate by locking mechanism;Wherein, the bottom end of the center pin shaft is fixed with the pull arm that can be elastically stretched with the center pin shaft as center, the pull arm is configured to extend to the direction of the pedal of two sides in character type structure, the pull arm end is movably connected with rotating seat, so that the pull arm can be elastically adapted to vehicle operating condition in vertical plane and horizontal plane rotation, the application further discloses a kind of through passage, the through passage includes the above-mentioned crossing plate pull rod, the crossing plate pull rod of the application, with light weight, simple structure, and when running, it occupies smaller space, collision accident with crossing plate and pedal is not easy to occur, secondly, the center pin shaft is hinged with locking mechanism, reduces wear, effectively reduces train off-line risk.

Description

Technical Field

[0001] This invention relates to the field of rail vehicle through passage technology, and more particularly to a cross passage tie rod and a through passage having a cross passage tie rod. Background Technology

[0002] The rail vehicle connecting passage is located at the junction of two cars, enabling connection and passage between the two cars. It is a dynamic and important component of the rail vehicle. The connecting passage tie rod is an important component of the connecting passage. The connecting passage tie rod is installed between the connecting passage steps of the two cars. The middle part of the tie rod is connected to the connecting passage through a locking mechanism. The connecting passage, the steps and the tie rod together form a safe floor passage. When the vehicle passes through curves, roll, pitch and height difference conditions, the connecting passage achieves deflection and lateral movement under the action of the tie rod.

[0003] In the prior art, as shown in the appendix Figure 1 As shown, the ramp tie rod mainly consists of two sets of connecting rods, each set including three hinged rods. The two sets of connecting rods are cross-connected to form a double rhombus structure. The characteristics of the double rhombus structure ensure that the ramp is always in the middle position. Although the double rhombus structure tie rod can ensure the enclosure of the passage, it has the disadvantages of complex structure, large weight, and requires a large space during operation. Furthermore, when the vehicle passes through small curves and rolls quickly, the connecting rod is prone to interference and collision with the pedal or ramp surface, causing the connecting rod to fail. Moreover, due to the torsional posture of the tie rod, the four hinge points on both sides will have the lowest and highest points, which may also cause friction with the folding canopy to form a fabric-filled profile, resulting in damage to the folding canopy fabric-filled profile. In addition, the connecting rod in the existing technology has a metal material between the central pin and the locking plate. Metal friction will occur when the vehicle is running. After a long period of operation, the central pin of the connecting rod will break, the ramp will fall off, and the vehicle will derail. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology:

[0005] First, address the issues of the double diamond tie rod occupying a large space, easily generating abnormal noise, and causing collision failure due to interference between the connecting rod and the ramp or pedal when passing through small curves and side roll conditions under extreme conditions, as well as the problem of easy friction when forming a fabric-reinforced profile with the folding canopy.

[0006] Secondly, the problem of wear between the center pin and the lock box metal, which causes the center pin to break after long-term operation, leading to the detachment of the skid plate and consequently causing the train to derail.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The slab tie rod disclosed in this invention includes:

[0009] The central pin is connected to the transition plate via a locking mechanism;

[0010] The bottom end of the central pin is fixedly connected to a pull arm that can elastically extend around the central pin. The pull arm has a straight structure and extends towards the pedals on both sides. The end of the pull arm is movably connected to a rotating seat so that the pull arm can flexibly adapt to the vehicle's operating conditions by rotating in both the vertical and horizontal planes.

[0011] Furthermore, the pull arm includes a rigid arm body capable of extension and retraction, and an elastic component is fitted on the outside of the arm body to extend and retract synchronously with it, so as to drive the arm body to return to its original position.

[0012] Furthermore, the arm body includes a base rod and end rods symmetrically slidably connected to both ends of the base rod. The ends of the end rods are connected to the rotating seat, and the elastic components are symmetrically fitted onto the outside of the base rod and the end rods.

[0013] Furthermore, the top of the central pin is provided with a hinge structure, which is movably connected to the locking mechanism so that the central pin can always maintain universal adaptation to the vehicle's operating conditions by being in contact with the locking mechanism.

[0014] Furthermore, the hinge structure is a spherical bearing mounted on the central pin, and a retainer is fixedly connected to the outer wall of the spherical bearing. The retainer is fixedly connected to the locking mechanism.

[0015] Furthermore, the locking mechanism includes a latch and a lock box fixedly connected to the transition plate. The lock box has a lock cavity. The bottom of the lock box has a lock hole through which the central pin can pass. The lock hole communicates with the lock cavity. The lock cavity is symmetrically fixedly connected to the latch on both sides of the lock hole. The side wall of the latch has an insertion port for insertion into the card holder.

[0016] Furthermore, a keyway is provided on the side wall of the central pin, and a positioning key is installed in the keyway to limit the displacement of the hinge structure along the axis of the central pin.

[0017] Furthermore, a mounting hole is provided in the middle of the base rod of the pull arm, and a slot is provided in the mounting hole. The positioning key and the center pin pass through the slot and the mounting hole respectively, and the slot prevents the positioning key from separating from the center pin.

[0018] Furthermore, the bottom end of the central pin is equipped with a disassembly structure for supporting the pull arm.

[0019] The through passage disclosed in this invention includes: the aforementioned ferrule rod, with pedals evenly connected at both ends of the ferrule rod.

[0020] The tie rod provided by this invention in the above technical solution has the following advantages:

[0021] First, the tie arm of this ramp is designed in a straight line shape and can extend elastically around the central pin. The end of the tie arm is movably connected to the rotating seat, allowing the arm to flexibly adapt to vehicle operating conditions by rotating in both the vertical and horizontal planes. Compared with existing technologies, this ramp tie arm is lighter and has a simpler and more compact structure. When the vehicle passes through curves, roll, pitch, and elevation differences, the swing range in three-dimensional space is small, with no sharp edges and strong adaptability. After the tie arm extends elastically, it automatically returns to its original position, flexibly adapting to vehicle operating conditions. This ramp tie arm effectively avoids abnormal noise and interference with the ramp or pedal under extreme conditions such as small curves combined with roll, which could lead to collision failure.

[0022] Secondly, the top of the center pin is connected to the cross plate through a hinge structure, which avoids the center pin and the cross plate from moving against each other, causing impact, metal-to-metal friction and wear, and preventing the center pin from breaking and the cross plate from falling off after long-term operation, thus reducing the failure rate and extending the service life of the cross plate tie rod.

[0023] The through passage disclosed in this invention includes the aforementioned truss rod, and has the same beneficial effects as the truss rod, which will not be described in detail here. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the existing slab tie rod structure;

[0026] Figure 2 This is an isometric view of the service state of the tie rod of the crossbeam disclosed in this invention;

[0027] Figure 2a yes Figure 2 A magnified view of a portion of the image;

[0028] Figure 3 This is an isometric view of the service state of the tie rod of the crossbeam disclosed in this invention from another perspective;

[0029] Figure 4 This is a schematic diagram of the locking state of the connecting rod and locking mechanism of the ferrule disclosed in this invention;

[0030] Figure 4a yes Figure 4 A magnified view of a portion of the image;

[0031] Figure 5This is a schematic diagram of the state of the plate tie rod removal and locking mechanism disclosed in this invention;

[0032] Figure 5a yes Figure 5 A magnified view of a portion of the image;

[0033] Figure 6 yes Figure 5 Top view;

[0034] Figure 7 This is a schematic diagram of the central pin structure disclosed in this invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10. Pedal;

[0037] 20. Crossing plate; 21. Cover plate;

[0038] 30. Locking mechanism; 31. Lock tongue; 311. Socket; 32. Lock box; 321. Lock hole;

[0039] 40. Center pin; 41. Keyway; 42. Shoulder; 43. Locating key; 44. Hexagonal slotted nut; 45. Cotter pin;

[0040] 50. Pull arm; 51. Base rod; 511. Mounting hole; 512. Slot; 52. End pull rod; 53. Tension spring;

[0041] 60. Rotary seat; 61. First connecting seat; 62. Second connecting seat; 63. First shaft; 64. Second shaft;

[0042] 70. Hinged structure; 71. Spherical bearing; 72. Card slot. Detailed Implementation

[0043] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] Figure 2 Axonometric drawing of the tie rod in use (view from below);

[0045] Figure 3 Axonometric drawing of the tie rod in its operational state (top view);

[0046] The invention includes a crossbeam tie rod, comprising: a central pin 40 and a tie arm 50;

[0047] The top of the center pin 40 is connected to the ramp 20 via the locking mechanism 30. The bottom of the center pin 40 is fixedly connected to a pull arm 50 that can elastically extend around the center pin 40. The pull arm 50 is constructed in a straight line and extends toward the pedals 10 on both sides. The end of the pull arm 50 is movably connected to the rotating seat 60, so that the pull arm 50 can flexibly adapt to the vehicle's operating conditions by rotating in both the vertical and horizontal planes.

[0048] In this structure, a locking mechanism 30 is installed on the ramp 20, which is engaged with the central pin 40. The pull arm 50 is fixed to the bottom end of the central pin 40 and is connected in a straight line between the two pedals 10. The structure is compact. When the vehicle passes through curves, roll, pitch, and height difference conditions, the pull arm 50 has no sharp edges and occupies little swing space in three-dimensional space. In addition, the pull arm 50 can elastically extend around the central pin 40 and automatically return to its original position, flexibly adapting to the vehicle's operating conditions. This ramp pull rod effectively avoids abnormal noise and interference with the ramp 20 or pedals 10 under extreme conditions when passing through small curves and roll conditions, which could lead to collision failure. Furthermore, the elastic pull arm 50 also provides an active pulling force for the ramp 20, which is elastic and automatically returns to its original position, making it highly adaptable.

[0049] Figure 4 This is a schematic diagram showing the locked state of the connecting rod and the locking mechanism of the skid plate.

[0050] Figure 5 A schematic diagram showing the locked state of the locking mechanism for removing the tie rod of the skid plate;

[0051] The pull arm 50 includes a telescopic rigid arm body, which is the main structure of the pull arm 50. The arm body has a straight-line structure, and elastic components are fitted on the outside of the arm body to extend and retract synchronously with it, which is used to drive the arm body to return to its original position. The two ends of the arm body located on the elastic component 53 are constructed as plate-like structures, which can effectively save the thickness of the rotating seat and the pull arm, as well as the connection position between the pull arm and the central pin 40, thereby further reducing the risk of mechanical interference in the moving position.

[0052] Specifically, the boom includes a base rod 51, a central pin 40 is installed in the middle of the base rod 51, and end tie rods 52 are symmetrically slidably connected to both ends of the base rod 51 (e.g., Figure 5As shown), the end of the end tie rod 52 is connected to the rotating seat 60. Two elastic components are symmetrically fitted on the outside of the base rod 51 and the end tie rod 52, and cover the outside of the base rod 51 and the end tie rod 52. The elastic component is a tension spring 53. One end of the tension spring 53 is connected to the base rod 51, and the other end is connected to the end tie rod 52. When the tension spring 53 contracts, it drives the end tie rod 52 to return to its original position. In this structure, the tension spring 53 is fitted on the outside of the arm body and contracts and extends synchronously with it. Not only is the tension spring 53 used to drive the arm body to return to its original position, but at the same time, the base rod 51 and the end tie rod 52 of the arm body extend and extend as rigid components, while the tension spring 53 is fitted on the outside of the arm body for flexible extension and extension. The arm body provides a guiding function for the tension spring 53, and the tension spring 53 also provides an outer layer of protection for the arm body. It is not only highly adaptable, but also improves the overall structural strength and reliability of the arm 50 through the combination of rigidity and flexibility.

[0053] See Figure 2 , 2a As shown:

[0054] Preferably, the top end of the center pin 40 is provided with a hinge structure 70, which is movably connected to the locking mechanism 30. This allows the center pin 40 to always maintain universal contact with the locking mechanism 30 to adapt to the vehicle's operating conditions. This avoids the problem of the center pin 40 moving while the ramp 20 remains stationary, causing the center pin 40 to collide with the locking mechanism 30, resulting in wear due to metal-to-metal friction. Over time, this could lead to the center pin 40 breaking, causing the ramp 20 to fall off, and resulting in the train derailing.

[0055] See Figure 2a As shown, the hinge structure 70 is a spherical bearing 71 mounted on the central pin 40. A retainer 72 is fixedly connected to the outer wall of the spherical bearing 71, and the retainer 72 is fixedly connected to the locking mechanism 30. Of course, the hinge structure 70 can also be a rubber bearing with inner and outer bushings and a rubber interlayer in the middle, as in the prior art. The outer bushing of the rubber bearing is fixedly connected to the retainer 72, or the outer bushing and the retainer 72 are an integral structure, and the retainer 72 is fixedly connected to the locking tongue 31 of the locking mechanism 30.

[0056] See Figure 2-4 As shown:

[0057] Preferably, the locking mechanism 30 includes a latch 31 and a lock box 32 fixedly connected to the transition plate 20. The lock box 32 has a lock cavity, and a lock hole 321 is provided at the bottom of the lock box 32, through which a central pin 40 can pass. The lock hole 321 communicates with the lock cavity, and the lock cavity is located on both sides of the lock hole 321 and is symmetrically fixedly connected to the latch 31 by bolts (e.g., Figure 3 As shown), the side wall of the latch 31 has a slot 311 for insertion into the card holder 72, which has a square structure (as shown). Figure 4aAs shown), the shape of the socket 311 is adapted to the cross-section of the card holder 72, so that the central pin 40 is fixedly connected by the card holder 72 and the locking tongue 31. A window is opened on the upper surface of the plate 20 corresponding to the position of the lock hole 321 (as shown). Figure 2 As shown), a cover plate 21 is installed on the window. The cover plate 21 is connected to the bottom of the latch 31 by bolts so that the center pin 40 can be observed through the window. If the center pin 40 is disassembled later, the latch 31 can be removed to facilitate the removal of the center pin 40 from the window. The top of the center pin 40 is provided with a handle for pulling out the pin. In addition, the handle also facilitates the assembly operation of the center pin 40 and the latch 31.

[0058] See Figure 5 , 7 As shown:

[0059] Preferably, a keyway 41 is provided on the side wall of the central pin 40, and a positioning key 43 is installed in the keyway 41 to limit the displacement of the hinge structure 70 along the axis of the central pin 40. A shoulder 42 is formed at the top of the central pin 40, and the shoulder 42 cooperates with the positioning key 43 to fix the hinge structure 70 at the top of the central pin 40.

[0060] See Figure 4a As shown, the base rod 51 of the pull arm 50 has a mounting hole 511 in the middle, and the mounting hole 511 has a slot 512. The positioning key 43 and the central pin 40 pass through the slot 512 and the mounting hole 511 respectively. The slot 512 prevents the positioning key 43 from separating from the central pin 40, and at the same time restricts the rotation of the central pin 40 relative to the base rod 51 to avoid rotational friction.

[0061] The bottom end of the center pin 40 is equipped with a disassembly structure for supporting the pull arm 50. Specifically, the disassembly structure includes a hexagonal slotted nut 44 and a cotter pin 45. The bottom end of the center pin 40 is machined with external threads. The slotted nut is threadedly connected to the center pin 40. The center pin 40 has a through hole in the threaded section for inserting the cotter pin 45, which engages with the hexagonal slotted nut 44 to prevent the nut from loosening. Of course, this disassembly structure can also be other structures in the prior art that are disassembled and have a loosening mechanism.

[0062] See Figure 2 As shown:

[0063] Preferably, the rotating seat 60 includes a first connecting seat 61 and a second connecting seat 62. The first connecting seat 61 can be fixedly connected to the pedal 10 by welding. The first connecting seat 61 is connected to the second connecting seat 62 through a horizontally arranged first shaft 63. The second connecting seat 62 is connected to the pull arm 50 through a vertically arranged second shaft 64, so that the pull arm 50 can rotate around the first shaft 63 in the vertical plane and around the second shaft 64 in the horizontal plane when adapting to the vehicle's operating conditions.

[0064] See Figure 2 As shown:

[0065] The through passage disclosed in this invention includes two pedals 10 and the aforementioned ferrule rod. Each pedal 10 has two rotating seats 60 fixedly connected to its lower part. The two ends of the ferrule rod are respectively connected to the rotating seats 60. The pedals 10 are connected through the two sets of ferrule rods. The ferrule 20 is disposed above the pedals 10. A locking mechanism 30 is provided in the middle of the ferrule 20 along the length direction. The locking mechanism is connected to the central pin 40 of the ferrule rod.

[0066] In the above technical solution, the installation method of the ferrule tie rod provided by the present invention is as follows:

[0067] First, the rotating seat 60 is connected to the end connecting rod 52 of the transition plate lever using the second pin 63. Then, the transition plate 20 is placed above the central pin 40, and the card holder 72 is aligned with the slot 311 of the latch 31 through the window on the plate surface of the transition plate 20. Then, the latch 31 is fixed to the lock box 32 with screws, and the cover plate 21 is sealed to the latch 31 through the window on the plate surface of the transition plate 20. The cover plate 21 is fixed to the latch 31 with screws, completing the installation.

[0068] The ferrule pull rod features, firstly, an elastic component fitted to the outside of the arm 50 that extends and retracts synchronously with it, creating a double-action of rigidity and flexibility. The pull arm 50 has a straight, extended shape, is lightweight, has a simple structure, and occupies little space during operation, making it less prone to collisions with the ferrule and pedal. Secondly, the top of the central pin 40 is connected to the ferrule 20 via a hinge structure 70, avoiding friction between metals and preventing pin breakage, thus reducing the failure rate and extending the service life of the ferrule pull rod.

[0069] The through passage disclosed in this invention includes the aforementioned truss rod, and has the same beneficial effects as the truss rod, which will not be described in detail here;

[0070] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Abutment tie rod, including: The central pin (40) connected to the plate (20) via the locking mechanism (30) is characterized by: The bottom end of the central pin (40) is fixedly connected to a pull arm (50) that can elastically extend around the central pin (40). The pull arm (50) is constructed in a straight line and extends toward the pedals (10) on both sides. The end of the pull arm (50) is movably connected to the rotating seat (60) so that the pull arm (50) can elastically adapt to the vehicle's operating conditions by rotating in both the vertical and horizontal planes.

2. The tie rod for the transition plate according to claim 1, characterized in that... ； The pull arm (50) includes a rigid arm body that can extend and retract, and an elastic component is fitted on the outside of the arm body to extend and retract synchronously with it so as to drive the arm body to return to its original position.

3. The tie rod for the transition plate according to claim 2, characterized in that... ； The arm includes a base rod (51) and end rods (52) symmetrically slidably connected to both ends of the base rod (51). The end of the end rod (52) is connected to the rotating seat (60). The elastic component is symmetrically fitted outside the base rod (51) and the end rod (52).

4. The tie rod for the transition plate according to any one of claims 1-3, characterized in that... ； The top end of the central pin (40) is provided with a hinge structure (70), which is movably connected to the locking mechanism (30) so that the central pin (40) can always maintain contact with the locking mechanism (30) to adapt to the vehicle's operating conditions.

5. The tie rod for the transition plate according to claim 4, characterized in that; The hinge structure (70) is a spherical bearing (71) mounted on the central pin (40). A retainer (72) is fixedly connected to the outer wall of the spherical bearing (71), and the retainer (72) is fixedly connected to the locking mechanism (30).

6. The tie rod for the transition plate according to claim 5, characterized in that... ； The locking mechanism (30) includes a latch (31) and a lock box (32) fixedly connected to the transition plate (20). The lock box (32) has a lock cavity. The bottom of the lock box (32) is provided with a lock hole (321) through which the central pin (40) can pass. The lock hole (321) communicates with the lock cavity. The lock cavity is located on both sides of the lock hole (321) and the latch (31) is symmetrically fixedly connected. The side wall of the latch (31) is provided with an insertion port (311) for insertion into the card holder (72).

7. The tie rod for the transition plate according to claim 4, characterized in that... ； The side wall of the central pin (40) is provided with a keyway (41), and a positioning key (43) is installed in the keyway (41) to limit the displacement of the hinge structure (70) along the axis of the central pin (40).

8. The tie rod for the transition plate according to claim 7, characterized in that; The base rod (51) of the pull arm (50) has a mounting hole (511) in the middle, and the mounting hole (511) has a slot (512). The positioning key (43) and the center pin (40) pass through the slot (512) and the mounting hole (511) respectively, and the slot (512) prevents the positioning key (43) from separating from the center pin (40).

9. The tie rod for the transition plate according to claim 1 or 8, characterized in that... ； The bottom end of the central pin (40) is equipped with a disassembly structure for supporting the pull arm (50).

10. A through passage, characterized in that, include: The ferrule pull rod according to any one of claims 1-9, wherein both ends of the ferrule pull rod are connected by pedals (10).

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