Transition car coupler

Abstract

The utility model provides a transition car coupler. A coupler body of the transition coupler comprises a coupling end and a coupler tail end, and the coupling end is used for being coupled with a train coupler and comprises a coupling face. The hook tail end can be connected to a traction mechanism; the coupler knuckle is arranged on the coupler body and used for being connected with a coupling rod of a train coupler. The coupling rod mounting table is arranged on the hook body and located between the hook body coupling end and the hook tail end. The coupling rod is detachably installed on the installation table, or the coupling rod and the hook body are of an integrated structure. All parts of the whole transition car coupler are designed to be of a detachable structure, the structure of the coupler head is simplified, and the car coupler is compact in structure, easy and reliable to operate, light in weight and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, and particularly to a transition coupler and the transition coupler. Background Art

[0002] A transition coupler is a device used to connect couplers of different hook head types or installation heights. It is a commonly used component for locomotives and passenger cars.

[0003] At present, with the rapid development of the rail transit industry, the types of couplers used will also increase. When a train breaks down during operation, a set of transition couplers that can be reliably connected to the existing formal couplers is needed for rescue and towing the train to a safe place. At present, the existing transition couplers in China mainly include Type 10 transition couplers, Type 330 transition couplers, Type 40 transition couplers, etc. There are many types of existing transition coupler parts, which are heavy and the connection operation is very laborious.

[0004] In the prior art, the transition coupler has a complex structure, is usually large in size and weight, and is inconvenient to connect with the train coupler.

[0005] The structure of the transitional coupler disclosed in patent CN214929731U includes a hook head, which includes a convex cone part, a concave hole part, a hook tongue and a connecting rod, wherein the convex cone part cooperates with the concave cone of the train coupler, and the concave hole part cooperates with the convex cone of the train coupler. Patents CN203558079U and CN215244872U also disclose similar structures. The above transitional couplers have complex structures, many hook body parts, and heavy overall weight, which makes the connection and hanging operation inconvenient.

[0006] As a key product used in rescue traction vehicles, the transition coupler needs to be carried by rescue workers during the coupling process, and the coupling time affects the vehicle rescue time, and seriously affects the train operation time. Therefore, it is very necessary to design a transition coupler that occupies a small space, is light in weight, has a compact structure, and is easy to operate. Utility Model Content

[0007] The utility model aims to solve one of the above-mentioned technical problems and to provide a transition coupler and a transition coupler with compact structure, light weight and convenient coupling operation, so as to facilitate the coupling between the transition coupler and the formal coupler.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A transition coupler, comprising:

[0010] Hook body: including a connecting end and a hook tail end, wherein the connecting end is used to connect with a train hook and includes a connecting surface; the hook tail end can be connected to a traction mechanism;

[0011] Hook tongue: set on the hook body, used to connect with the hook rod of the train coupler;

[0012] The connecting rod mounting platform is set on the hook body, between the connecting end of the hook body and the hook tail end;

[0013] Connecting and hanging rod: detachably mounted on the mounting platform;

[0014] The hook tongue and the connecting rod are arranged on both sides of the hook body; the length of the connecting rod is configured so that when it is installed on the connecting rod mounting platform, it can pass over the connecting surface to connect with the hook tongue of the train coupler.

[0015] In some embodiments of the utility model, a connecting rod stopper mounting platform is further provided on the hook body, and the connecting rod stopper mounting platform is located on the same side of the connecting rod mounting platform, and is arranged in a direction close to the connecting end of the hook body relative to the connecting rod mounting platform; the transition coupler further includes a connecting rod stopper, and the connecting rod stopper can be detachably mounted on the connecting rod stopper mounting platform; after the connecting rod is installed on the connecting rod mounting platform and the connecting rod stopper is installed on the connecting rod stopper mounting platform, the connecting rod stopper is located on the outside of the connecting rod.

[0016] In some embodiments of the utility model, the connecting rod includes an installation end and a connecting end, the installation end forms an insertion slot, the insertion slot is inserted into the connecting rod mounting platform, the connecting rod and the connecting rod mounting platform are fixed by a fixing member; the connecting end forms a connecting opening, and the hook tongue of the train coupler can be hooked at the connecting opening.

[0017] In some embodiments of the utility model, the connecting rod baffle rod mounting platform includes a first mounting platform and a second mounting platform spaced apart in an upper and lower direction, and sockets are relatively arranged on the first mounting platform and the second mounting platform, and the connecting rod baffle rod is inserted and installed between the sockets of the first mounting platform and the second mounting platform; in the longitudinal direction, the connecting rod mounting platform is located between the first mounting platform and the second mounting platform.

[0018] In some embodiments of the utility model, the connecting end includes an upper connecting surface and a lower connecting surface which are spaced apart from each other, and the upper connecting surface and the lower connecting surface are connected via a hook body seat; the hook body seat includes an arc segment which is recessed from one side of the connecting end to the side of the hook tail, forming an arc segment hook body.

[0019] A transition coupler, comprising:

[0020] Hook body: including a connecting end and a hook tail end, wherein the connecting end is used to connect with a train hook and includes a connecting surface; the hook tail end can be connected to a traction mechanism;

[0021] Hook tongue: set on the hook body, used to connect with the hook rod of the train coupler;

[0022] The connecting rod mounting platform is set on the hook body, between the connecting end of the hook body and the hook tail end;

[0023] Connecting rod: integrated with the hook body;

[0024] The hook tongue and the connecting rod are arranged on both sides of the hook body; the length of the connecting rod is configured so that when it is installed on the connecting rod mounting platform, it can pass over the connecting surface to connect with the hook tongue of the train coupler.

[0025] In some embodiments of the utility model, the connecting end includes an upper connecting surface and a lower connecting surface which are spaced apart from each other, and the upper connecting surface and the lower connecting surface are connected via a hook body seat; the hook body seat includes an arc segment which is recessed from one side of the connecting end to the side of the hook tail, forming an arc segment hook body.

[0026] In some embodiments of the utility model, a stop pin is installed on the hook body on one side of the hook tongue, and the installation position of the stop pin is configured as follows: after the connecting rod of the train coupler is connected with the hook tongue of the transition coupler, the stop pin is located on the outside of the connecting rod of the train coupler to limit the rotation of the connecting rod.

[0027] In some embodiments of the utility model, a connecting plate is provided on the hook body, and a hook tongue is provided on the side of the connecting plate facing the hook tail.

[0028] In some embodiments of the utility model, the side of the connecting plate facing the connecting surface is an inclined surface, and the inclined surface is located from the side close to the transition hook connecting rod to the outside of the transition hook, and is inclined toward the side close to the hook tail.

[0029] Compared with the prior art, the transition coupler and the coupling method provided by the utility model have the following beneficial effects:

[0030] Compared with the prior art, the transition coupler and the coupling method thereof provided by the present invention have the following beneficial effects:

[0031] 1. The overall parts of the transition coupler are designed to be detachable, which simplifies the structure of the hook head. The coupler has a compact structure, simple and reliable operation, light weight, and is easy to carry. It can be connected to the train coupler through manual operation, meeting the needs of high-speed train rescue and rescue, and can reduce the difficulty and cost of rescue.

[0032] 2. The hook body of the transition coupler is an arc-shaped structure and can be designed as a plate-shaped structure, which greatly simplifies the structure of the hook body of the transition coupler, reduces the weight of the transition coupler, facilitates the coupling operation, and thus ensures the coupling operation time.

[0033] 3. Two matching installation structures of the transition coupler head and the connecting rod are proposed: in one structure, the connecting rod of the transition coupler is designed to be a detachable structure, and the transition coupler adopts a rotary connecting method, which is easy to operate and has strong flexibility. The connecting rod is designed to block the connecting rod of the transition coupler to ensure the stability of the connection between the transition coupler and the train coupler; in the other structure, the connecting rod of the transition coupler is welded to the coupler body without relative movement, and cannot be disassembled. The structure is simple and does not require daily maintenance and oiling. The stop pin is used to block the connecting rod of the formal coupler, which can effectively prevent it from coming out and avoid uncoupling; BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1a It is a schematic diagram of the hook body structure of the transition coupler in the first embodiment.

[0036] Figure 1b It is a schematic diagram of the transition coupler structure of the first embodiment.

[0037] Figure 2a It is a structural schematic diagram of the first embodiment in which the transition coupler and the 330-type coupler are aligned with each other.

[0038] Figure 2b It is a schematic cross-sectional view of the first embodiment in which the transition coupler and the 330-type coupler are aligned with each other.

[0039] Figure 2c It is a schematic diagram of the state structure of the connection process between the transition coupler connecting rod and the 330 type coupler tongue in the first embodiment.

[0040] Figure 2d It is a structural schematic diagram of the first embodiment in which the transition coupler connecting rod and the 330 type coupler tongue are connected in place.

[0041] Figure 2e This is a schematic structural diagram of the first embodiment in which the transition coupler and the 330-type coupler are connected in place.

[0042] Figure 3a This is a schematic diagram of the first state structure of the Type 40 coupler.

[0043] Figure 3b This is a schematic diagram of the second state structure of the Type 40 coupler.

[0044] Figure 4aThis is a schematic structural diagram of the transition coupler from the first perspective of the second embodiment.

[0045] Figure 4b This is a schematic structural diagram of the transition coupler of the second embodiment from a second perspective.

[0046] Figure 5a This is a schematic structural diagram of the first state of the transition coupler and the 40-type coupler in the second embodiment.

[0047] Figure 5b It is a schematic diagram of the second state structure of the transition coupler and the 40-type coupler in the second embodiment.

[0048] Figure 5c It is a schematic diagram of the third state structure of the transition coupler of the second embodiment and the 40-type coupler connected.

[0049] Figure 5d It is a schematic diagram of the structure of the fourth state of the transition coupler of the second embodiment connected with the 40-type coupler.

[0050] Figure 6 It is a structural schematic diagram of the second embodiment in which the transition coupler and the 40-type coupler are connected in place.

[0051] 1-hook body, 101-hook end, 102-hook tail end, 103-hook tail pin, 104-upper hanging surface, 105-lower hanging surface, 106-reinforcement rib, 107-arc segment;

[0052] 2- hook tongue;

[0053] 3-connecting hanging rod mounting platform, 301-through hole;

[0054] 4-connecting hanging rod, 401-through hole;

[0055] 5-Connecting the hanging rod rotation pin;

[0056] 6-turn pin spring card;

[0057] 7-connecting the hanging rod and the stopper rod;

[0058] 801-first mounting platform, 802-second mounting platform, 803-jack;

[0059] 901-convex cone, 902-concave cone;

[0060] 10-330 type coupler with hanging noodles;

[0061] 11-330 type coupler with hanging rod;

[0062] 12-330 type coupler tongue;

[0063] 13-Transition coupler;

[0064] 14-330 type coupler;

[0065] 15-40 type coupler, 1501-hook head, 1502-hook surface, 1503-hook tongue plate, 1504-hook tongue arc, 1505-hook rod, 1506-unhooking handle, 1507-convex cone, 1508-concave cone;

[0066] 16-hook body, 1601-hook end, 1602-hook tail end, 1603-hook tail pin, 1604-upper hanging surface, 1605-lower hanging surface, 1606-reinforcement rib, 1607-arc segment;

[0067] 17-Hook tongue;

[0068] 18-connecting hanging rod;

[0069] 19-stop pin;

[0070] 2001-upper mounting plate, 2002-lower mounting plate;

[0071] 21-Hanging plate, 2101-Inclined surface. DETAILED DESCRIPTION

[0072] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0073] In the description of the present application, it should be noted that the fixed connection described in the present application can be a detachable fixed connection or an integrated fixed connection; the indication of the orientation or positional relationship is based on the positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0074] The terms "first" and "second" are used for descriptive purposes only and are not intended to imply relative importance.

[0075] The utility model provides a transitional coupler, which is used for coupling with a train coupler in a vehicle rescue operation. The transitional coupler is suitable for coupling with a train coupler in the form of a hook tongue and a coupling rod, for example, a 330-type coupler and a 40-type coupler. The utility model provides two specific implementation structures of the transitional coupler, and the structural difference of the transitional coupler in the two implementation structures mainly lies in the installation relationship between the coupling rod and the coupler head.

[0076] First embodiment.

[0077] The transition coupler provided in this embodiment has a detachable mounting structure between the coupling rod 4 of the transition coupler and the hook body 1 of the transition coupler. In this embodiment, the structure and coupling steps of the transition coupler are described by taking the adaptation application of the transition coupler and the 330 type coupler as an example. The terms involved in this embodiment: formal coupler and train coupler all refer to the couplers on formal vehicles.

[0078] First, the structure of the 330 type coupler is explained.

[0079] The 330-type coupler includes a hook head and a hook tail, wherein the hook tail side is used to connect with the vehicle end. A connecting surface 10 is formed at the hook head end, and when two 330-type formal couplers are connected, the connecting surfaces 10 are opposite. A convex cone 901 and a concave cone 902 are provided on one side of the connecting surface of the 330-type coupler. The hook head portion forms a hook head cavity, and a hook tongue structure is installed inside the cavity of the hook head. The hook tongue structure can rotate relative to the hook head and can be connected to an unhooking handle. He pulls the unhooking handle, and the hook tongue 12 of the 330-type coupler rotates. More specifically, the hook tongue structure includes a hook tongue plate, and a tiger's mouth structure is formed on one side of the hook tongue plate. As the hook tongue 12, it can be connected to the connecting rod of other matching couplers, and a 330-type coupler connecting rod 11 is connected to the other side of the hook tongue plate, which can be connected to the hook tongue of other matching couplers.

[0080] The structure of the transition coupler provided in the first embodiment is described in detail below.

[0081] In this embodiment, the formal coupler is a 330-type coupler, so the 330-type coupler in this embodiment corresponds to the formal coupler of the train. However, this does not limit the application scenario of the transition coupler in this embodiment, and the transition coupler can still be applied to other types of transition couplers of the hook tongue and hook rod type.

[0082] refer to Figure 1a and Figure 1b The hook body 1 of the transitional hook comprises a connecting end 101 and a hook tail end 102, wherein the connecting end 101 is used to connect with the adapting hook and has a connecting surface, and the hook tail end 102 is used to connect to an external rescue vehicle and comprises a hook tail pin 103. When connected with the hook of the vehicle to be rescued, the connecting surface of the transitional hook fits with the connecting surface of the 330 type hook of the vehicle to be rescued.

[0083] Usually, the couplers are connected and matched through a coupler tongue and a connecting rod. For the two couplers to be connected, the coupler tongue of the first coupler is connected to the connecting rod of the second coupler, and the connecting rod of the first coupler is connected to the coupler tongue of the second coupler.

[0084] A hook tongue 2 is arranged on the hook body 1 of the transition coupler. The hook tongue 2 is arranged on the hook body 1, and the base of the hook tongue faces one side of the hook tail end 102, and is used for connecting with the connecting rod of the 330 type coupler.

[0085] The rescue hook is also provided with a connecting rod 4, which is different from the structure of the hook in the prior art. The connecting rod is designed to be a plug-in structure. A connecting rod mounting platform 3 is provided on the hook body 1, located on the side wall of the hook body in the middle between the connecting end 101 of the hook body and the hook tail end 103. Specifically, the connecting rod mounting platform 3 is a plate-like structure provided on the side wall of the hook body, and a through hole 301 is provided on it for plugging in a fixing part.

[0086] The connecting rod 4 can be detachably mounted on the connecting rod mounting platform 3, and the hook tongue 2 and the connecting rod 4 are arranged on both sides of the hook body 1; the connecting rod 4 also has a through hole 401. When the connecting rod 4 needs to be fixed to the connecting rod mounting platform 3, the through hole 301 and the through hole 401 are aligned, and the connecting rod rotation pin 5 is inserted. The size of one end of the connecting rod rotation pin 5 is larger than the size of the through hole, and the other end is installed with a rotation pin spring clip 6 after passing through the through hole to prevent the connecting rod 4 from falling out. The length of the connecting rod 4 is configured so that when it is installed on the connecting rod mounting platform 3, it can pass over the connecting surface of the transition coupler and stably connect with the hook tongue of the 330 type coupler.

[0087] In the initial state, the connecting rod 4 and the hook body 1 are two independent components and are not installed. When performing the connecting operation, the connecting rod 4 is connected with the hook tongue of the 330 type coupler, and then the connecting rod 4 is fixed on the connecting rod mounting platform 3.

[0088] In some embodiments, the connecting rod 4 is axially connected to the connecting rod mounting platform 3, and can rotate relative to the axial connection portion with the mounting platform in the direction between the connecting break 101 and the hook tail end 102; and is connected to the hook tongue of the 330 type coupler during the rotation process.

[0089] In some embodiments, an implementation structure of a connecting rod 4 is further provided. The connecting rod 4 includes a mounting end and a connecting end, the mounting end forms an insertion slot, the insertion slot is inserted into the connecting rod mounting platform 3, and the connecting rod 4 and the connecting rod mounting platform 5 are fixed via a connecting rod rotating pin 5. The connecting end forms a connecting opening, and the hook tongue of the 330 type coupler can be hooked at the connecting opening. Specifically, the connecting rod 4 includes a first connecting rod and a second connecting rod arranged in the length direction, and the two connecting rods are connected by a third connecting rod in the width direction. A through hole 401 is provided at the non-connecting end of the first connecting rod and the second connecting rod. The gap between the first connecting rod and the second connecting rod is designed according to the thickness of the connecting rod mounting platform 3, so that the connecting rod mounting platform 3 can be accommodated in the gap between the two connecting rods.

[0090] Since the connecting rod 4 and the hook body 1 are designed to be detachable, there is a risk that the connecting rod 4 will fall off the connecting rod mounting platform 3, and there is also a risk that the connecting rod 4 will rotate relative to the connecting rod mounting platform 3, causing the connection to be unhooked.

[0091] In order to solve this problem, in some embodiments of the utility model, a connecting rod stopper mounting platform is further provided on the hook body 1, and the connecting rod stopper mounting platform is located on the same side of the connecting rod mounting platform 3, and is arranged in the direction close to the hook body connecting end 101 relative to the connecting rod mounting platform 3; the transition coupler further includes a connecting rod stopper 7, and the connecting rod stopper 7 is detachably mounted on the connecting rod stopper mounting platform; after the connecting rod is installed on the connecting rod mounting platform 3 and the connecting rod stopper is installed on the connecting rod stopper mounting platform, the connecting rod stopper 7 is located on the outside of the connecting rod 3 to limit the movement of the connecting rod 3.

[0092] In some embodiments of the utility model, the connecting rod stopper mounting platform is installed on the outer side wall of the hook body 1, including a first mounting platform 801 and a second mounting platform 802 arranged in an upper and lower interval, and the first mounting platform 801 and the second mounting platform 802 are provided with plug holes 803 opposite to each other, and the connecting rod stopper 7 is inserted and installed between the plug holes 803 of the first mounting platform 801 and the second mounting platform 802; in the longitudinal direction, the connecting rod mounting platform 2 is located between the first mounting platform 801 and the second mounting platform 802. When the transitional coupler and the 330-type coupler are connected, the connecting rod stopper 7 is installed in the plug hole to ensure that the connecting rod 4 is stable in the hook tongue of the 330-type coupler.

[0093] Similar to the structure of the connecting rod mounting platform 3, the first mounting platform 801 and the second mounting platform 802 are also plate-shaped unhooks, and the position of the plug hole 803 needs to be located outside the through hole 401 so that the connecting rod stopper 7 can be installed on the connecting rod stopper mounting platform and located outside the connecting rod 4.

[0094] In the prior art, transitional couplers adapted to 330-type couplers are all convex-cone and concave-cone structures as described in the background art. Some embodiments of the present invention further provide a simplified transitional coupler structure adapted to 330-type couplers by improving the structure of the hook body 1.

[0095] In the prior art, the connecting surface of the hook is the surface where the convex cone 901 and the concave cone 902 are located. The overall area of ​​the connecting surface is large, and the overall volume of the hook is large. The connecting end of the hook body provided by the utility model includes an upper connecting surface 104 and a lower connecting surface 105 arranged at an interval up and down, and the upper connecting surface 104 and the lower connecting surface 105 are connected through a hook body seat; the hook body seat has a concave arc segment 107 on the side facing the connecting end. The concave mentioned here refers to the concave from the connecting end 101 to the side close to the hook tail end 102. The plate-like structure of the hook tail and the arc segment 107 is an integrally formed structure.

[0096] The width of the arc segment 107 is approximately equal to the width of the upper connecting surface 104 and the lower connecting surface 105, which is much smaller than the overall width of the connecting surface of the 330-type hook, which can reduce the overall weight of the transition hook and avoid interference with the convex cone of the formal hook. The hook body 1 near the hook tail end 102 after the arc segment 107 is a plate-shaped hook body seat, which can be used as a reinforcing rib 106 to improve the overall stability of the transition hook. The width is smaller than the width of the upper connecting surface 104 and the lower connecting surface 105. When connected, the upper connecting surface 104 and the lower connecting surface 105 fit the connecting surface of the 330-type hook. The side of the arc segment 107 is close to the convex cone 901 of the 330-type hook, but does not interfere with the convex cone 901. This structure can minimize the overall volume of the transition hook and reduce the weight of the transition hook. In order to reduce weight, multiple weight-reducing holes can also be designed on the hook body of the arc segment 107.

[0097] In some embodiments of the present invention, there are gaps in the middle parts of the upper connecting panel 104 and the lower connecting panel 105, and the position of the cover gap matches the position of the air duct of the 330 type coupler to avoid interference between the air duct between the transition coupler and the formal coupler during the connecting process.

[0098] In some embodiments of the utility model, the connecting rod mounting platform 3 is arranged on the hook body seat on the rear side of the arc segment 107, that is, located on the plate-shaped hook body; the hook tongue 2 is arranged along the edge of the arc segment 107; the first mounting platform 801 and the second mounting platform 802 are arranged along the edge of the arc segment 107.

[0099] The arc segment 107 integrally forms a concave notch structure on one side facing the 220-type coupler, so that when the connecting rod 4 of the rotary transition coupler is connected with the 330-type coupler, interference with the 330-type coupler can be avoided.

[0100] The second embodiment of the utility model further provides a method for connecting a transition coupler for a 330-type coupler, using the transition coupler described in the first embodiment, and the method for connecting the transition coupler includes the following steps.

[0101] The connecting end of the transitional coupler is brought into contact with the connecting surface 10 of the 330-type coupler; in the initial contact state, the connecting surfaces of the two couplers are not completely fitted together, but the side where the tongue 2 of the transitional coupler is fitted with the connecting surface of the 330-type coupler, and the transitional coupler is in an inclined state relative to the 330-type coupler;

[0102] Move the transition coupler so that the coupler tongue 2 of the transition coupler is connected with the connecting rod 11 of the 330 type coupler;

[0103] The connecting end of the rotary transition coupler is completely in contact with the connecting surface of the 330 type coupler;

[0104] Connect the connecting rod 4 of the transition coupler to the hook tongue 12 of the 330 type coupler;

[0105] The transitional car hook connecting rod 4 is rotated to fix the transitional car hook connecting rod 4 on the connecting rod mounting platform 3.

[0106] In some embodiments of the present invention, the following steps are further included: after the connecting rod 4 for fixing the vehicle hook is fixed on the connecting rod mounting platform 3, the connecting rod blocking rod 7 is installed.

[0107] Further combined with the specific structure of the transition coupler, the specific connection method using the transition coupler is explained as follows.

[0108] Coupling process: The transition coupler 13 is manually operated to achieve the coupling process with the 330 type coupler 14, such as Figure 2a The upper connecting surface 104 and the lower connecting surface 105 of the transitional coupler 13 are in contact with the connecting surface 10 of the 330-type coupler 14, and the transitional coupler 13 is moved horizontally at the same time, so that the fixed hook tongue 2 of the transitional coupler 13 slides into the end stop column of the connecting rod 11 of the 330-type coupler 14, as shown in FIG. Figure 2b Rotate the transitional coupler body 1 clockwise and continue to move toward the convex cone 901 side of the train 330 type coupler 14, and the front end stopper II of the 330 type coupler connecting rod 4 completely enters the transitional coupler tongue 2 ( Figure 2c ), then rotate the transitional hook body 1 counterclockwise to re-contact the 330-type hook connection surface 10, completing the connection of the transitional hook tongue 2. Subsequently, manually operate the detachable connection rod 2 of the transitional hook 13, the cylindrical end of the detachable connection rod 2 is hooked into the groove of the 330-type hook tongue 12, and the other end is hinged to the connection rod mounting platform 3 on the hook body through the connection rod rotation pin 5, and the rotation pin spring clip 6 is inserted into the connection rod rotation pin 5 positioning hole to prevent the connection rod rotation pin 5 from falling out, such as Figure 2d Then, manually insert the connecting rod stop pin 5 into the hook body stop pin hole 15 to limit the detachable connecting rod 2 to prevent the detachable connecting rod 2 from rotating, and insert the stop pin spring clip 6 into the connecting rod stop pin 5 to prevent it from falling out. At this point, the transition coupler 13 and the 330 type coupler 14 are connected. Figure 2e .

[0109] Unhooking process: The process of the transitional coupler 13 and the 330-type coupler 14 is the reverse operation process of the hooking operation. That is, first pull out the stopper spring card 6 from the hooking rod stopper pin 5, then remove the hooking rod stopper pin 5 from the hooking rod mounting platform 3, and then pull out the rotating stopper spring card 6 from the hook body 1, so that the hooking rod 4 can be removed from the groove of the hook tongue 12 of the 330-type coupler 14, and then rotate the transitional coupler clockwise, move the transitional coupler 13 horizontally, and make the fixed hook tongue 2 of the transitional coupler 13 slide out of the end stopper column II of the hooking rod 11 of the 330-type coupler 14. At this point, the unhooking process of the transitional coupler 13 and the 330-type coupler 14 is completed.

[0110] The utility model greatly simplifies the structure of the transition coupler, and in particular proposes a detachable transition coupler suitable for type 330. The transition coupler can meet the use requirements of urban rail trains, and adopts a method of converting the multi-part structure of the hook tongue, the connecting rod, the connecting rod pin shaft, etc. in the connecting component into a single-part structure to achieve lightweight transition coupler, and can be connected with type 330 coupler by manual operation, thereby meeting the requirements of train rescue.

[0111] Second embodiment.

[0112] The transition coupler provided in this embodiment has a detachable mounting structure between the transition coupler's connecting rod 18 and the transition coupler's hook body 16. In this embodiment, the structure and connecting steps of the transition coupler are described by taking the adaptation application of the transition coupler and the 40-type coupler as an example. The terms involved in this embodiment: formal coupler and train coupler all refer to the couplers on formal vehicles.

[0113] The application status of Type 40 coupler in the prior art is as follows.

[0114] Tram-train is a mixed-operation vehicle used abroad. It does not require high strength of the coupler, but has extremely strict requirements for lightness. The most widely used coupler is the 40-type coupler. When rescuing a tram, a 40-type transition coupler is required, but the traditional transition coupler is too heavy and cannot meet the requirements of single-person operation. The operation steps are complicated.

[0115] Different from the 330-type coupler commonly used in domestic subway vehicles, the 40-type coupler has different principles and structural features. When the coupler is in the waiting position (also the connecting position), the 40-type coupler connecting rod is in a state of extending the convex cone, while the 330-type coupler connecting rod is retracted in the convex cone of the coupler; the arc position of the 40-type coupler tongue faces the rear side of the hook body, and a guide plate is installed on the side wall of the hook body, while the arc position of the 330-type coupler tongue faces the side of the hook body.

[0116] First, the structure of Type 40 coupler is explained.

[0117] refer to Figure 3a and Figure 3b, which are two-state diagrams of the Type 40 coupler 15. The Type 40 coupler 15 includes a hook head 1501 and a hook tail, wherein the hook tail side is used to connect to the vehicle end. A connecting surface 1502 is formed at the end of the hook head 1501. When two Type 40 formal couplers are connected, the connecting surfaces 1502 are opposite to each other. A convex cone 1507 and a concave cone 1508 are provided on one side of the connecting surface of the Type 40 coupler. The hook head portion forms a hook head cavity, and a hook tongue structure is installed inside the cavity of the hook head. The hook tongue structure can rotate relative to the hook head, and an unhooking handle can be externally connected. He pulls the unhooking handle, and the hook tongue 17 of the Type 40 coupler rotates. More specifically, the hook tongue structure includes a hook tongue plate 1503, a hook tongue arc 1504 structure is formed on one side of the hook tongue plate, and as a hook tongue, it can be connected to the connecting rod of other matching couplers, and a 40-type coupler connecting rod 1505 is connected to the other side of the hook tongue plate, which can be connected to the hook tongue of other matching couplers. Figure 3a The diagram shows the coupler uncoupling state. Figure 3b The diagram shows the coupling state.

[0118] A first embodiment of the present invention provides a transition coupler for a Type 40 coupler, which is used in a vehicle rescue operation and is coupled to a vehicle to be rescued that uses a Type 40 coupler.

[0119] The structure of the transition coupler will be described in detail below.

[0120] refer to Figure 4a and Figure 4b The hook body 16 of the transition coupler includes a connecting end 1601 and a hook tail end 1602, wherein the connecting end 1601 is used to connect with the adapter coupler and has a connecting surface, and the hook tail end 1602 is used to connect to an external rescue vehicle and includes a hook tail pin 1603. When connected with the coupler of the vehicle to be rescued, the connecting surface of the transition coupler fits with the connecting surface of the formal coupler of the train to be connected. In this embodiment, the formal coupler is a Type 40 coupler, and therefore, the Type 40 coupler hereinafter corresponds to the formal coupler of the train. However, it does not serve as a limitation to the application scenario of the transition coupler of the present invention, and the transition coupler can still be applied to other types of transition couplers of the hook tongue connecting rod type.

[0121] Usually, the couplers are connected and matched through a coupler tongue and a connecting rod. For the two couplers to be connected, the coupler tongue of the first coupler is connected to the connecting rod of the second coupler, and the connecting rod of the first coupler is connected to the coupler tongue of the second coupler.

[0122] A hook tongue 17 is provided on the hook body 16 of the rescue hook. The hook tongue 17 is provided on the hook body 16 and faces one side of the coupling end, and is used for coupling with the coupling rod of the 40-type hook.

[0123] A connecting rod 18 is also provided on the rescue vehicle hook. The connecting rod 18 and the hook body 16 are an integrated structure and cannot be disassembled.

[0124] The hook tongue 17 and the connecting rod 18 are arranged on both sides of the hook body; the length of the connecting rod 18 is configured to be able to cross the connecting surface of the hook body 16 to connect with the hook tongue of the 40-type coupler.

[0125] In the above structure, the hook tongue 17 and the connecting rod 18 are both integrated with the hook body 16, and the transition coupler as a whole is a non-detachable structure, which is convenient for transportation and maintenance.

[0126] Since the connecting rod 1505 is in an extended state when the 40-type coupler is connected, the part outside the coupler body is relatively long, which is prone to an unstable state of connection with the transition coupler tongue. In order to solve this problem, in some embodiments of the present invention, a stop pin 19 is installed on the hook body on one side of the tongue, and the installation position of the stop pin 19 is configured as follows: after the connecting rod 1505 of the 40-type coupler is connected with the tongue 17 of the transition coupler, the stop pin 19 is located on the outside of the connecting rod 1505 to limit the rotation of the connecting rod 1505 and prevent the connecting rod from coming out of the tongue 17 of the transition coupler.

[0127] In order to solve the problem of installing the stop pin 19, in some embodiments of the present invention, a stop pin installation plate is installed on the hook body on one side of the hook tongue 17, including an upper installation plate 2001 located above the hook tongue 17 and a lower installation plate 2002 located below the hook tongue 17, and both the upper installation plate 2001 and the lower installation plate 2002 are provided with openings, and the stop pin 6 passes through the openings of the upper installation plate 2001 and the lower installation plate 2002 and is fixed. The stop pin 19 is a detachable structure. After the transitional coupler is connected with the 40-type coupler, the stop pin 19 is installed. When the connection between the two couplers needs to be released, the stop pin 19 is removed.

[0128] In order to construct the structure of the hook tongue 17, in some embodiments of the present invention, a connecting plate 21 is provided on the hook body, and the hook tongue 17 is arranged on the side of the connecting plate 21 facing the hook tail, and is an arc structure processed on the connecting plate, and the arc faces the hook tail side of the transition coupler.

[0129] One feature of the 40-type coupler is that in the connected state, the connecting rod 1505 of the 40-type coupler is in an extended state. The hook tongue 17 of the transition coupler is facing the hook tail side of the transition coupler, which is opposite to the direction of the connecting rod 1505 of the 40-type coupler. The connecting rod 1505 needs to go around the rear of the connecting plate 21 to connect with the transition coupler. However, the connecting plate 21 is located on the movement path of the connecting rod 1505, which will interfere with the movement of the connecting rod 105. In order to solve this technical problem, in some embodiments of the present invention, the connecting plate 21 faces the connecting surface of the transition coupler, that is, the side of the connecting plate 21 facing the connecting rod 1505 is an inclined surface 2101, and the inclined surface 2101 is located from the side close to the transition coupler connecting rod to the outside of the transition coupler, and is inclined toward the side close to the hook tail. The inclined surface 2101 has a guiding function. When the type 40 coupler is connected with the transition coupler, the connecting rod 1505 contacts the inclined surface 2101 and moves along the inclined surface 2101. When it moves to the edge outside the inclined surface 2101, it bypasses the connecting plate 21 and connects with the hook tongue 17.

[0130] The connecting surface 1502 of the 40-type coupler is the surface where the convex cone 1507 and the concave cone 1508 are located. The overall area of ​​the connecting surface is large, and the overall volume of the coupler is large. The connecting end of the hook body provided by the present invention includes an upper connecting surface 1604 and a lower connecting surface 1605 arranged at an interval up and down, and the upper connecting surface 1604 and the lower connecting surface 1605 are connected via a hook body seat; the hook body seat presents a concave arc segment 1607 from one side of the connecting end to the side of the hook tail. The concave mentioned here refers to the concave from the connecting end 1601 to the side close to the hook tail end 1602. The plate-like structure of the hook tail and the arc segment 1607 is an integrally formed structure. This structure greatly simplifies the structure of the hook head and makes the hook head lighter. In order to improve the stability of the structure, a reinforcing rib 1606 is provided between the hook tail and the arc segment 1607.

[0131] The width of the arc segment 107 is approximately equal to the width of the upper connecting surface 1604 and the lower connecting surface 1605, which is much smaller than the overall width of the connecting surface of the 40-type hook, which can reduce the overall weight of the transition hook and avoid interference with the convex cone of the formal hook. The side of the arc segment 1607 is close to the convex cone 1607 of the 40-type hook, but the width of the arc segment prevents the transition hook from interfering with the convex cone 1607 between the formal hooks. This structure can minimize the overall volume of the transition hook and reduce the weight of the transition hook. In order to reduce weight, multiple weight-reducing holes can also be designed on the hook body of the arc segment 1607.

[0132] In some embodiments of the present invention, there are gaps in the middle parts of the upper connecting panel 1604 and the lower connecting panel 1605, and the position of the cover gap matches the position of the air duct of the Type 40 coupler to avoid interference between the air duct between the transition coupler and the formal coupler during the connecting process.

[0133] Furthermore, the arc segment 1607 is a regular circular arc, and the hook tail is installed at the symmetrically divided position of the circular arc segment, and is installed toward the rear side, and the two are welded together. The connecting rod 18 of the transitional hook is installed on the first side of the symmetrically divided position, and the hook tongue is correspondingly arranged on the second side. This configuration can ensure the uniform symmetry of the transitional hook. The stop pin 6 is installed on the side wall of the arc-shaped hook body segment, and the upper mounting plate 1601 and the lower mounting plate 1602 are symmetrically installed on the upper and lower sides of the symmetrical axis along the symmetrical axis of the arc-shaped hook body segment.

[0134] Some embodiments of the present invention further provide a method for coupling a transition coupler for a 40-type coupler, which is used for coupling the above-mentioned transition coupler with a 40-type coupler, and is characterized in that it includes the following steps:

[0135] Pull the unhooking handle of the 40-type coupler and rotate the hook tongue of the 40-type coupler to connect the hook tongue of the 40-type coupler with the connecting rod of the transition coupler;

[0136] Release the unhooking handle of the Type 40 coupler, and the hook tongue of the Type 40 coupler will rotate in the opposite direction under the action of the spring restoring force, so that the connecting rod of the Type 40 coupler is connected with the hook tongue of the transition coupler.

[0137] In some embodiments of the present invention, the coupling method further includes: during the coupling process of the coupling rod 105 of the type 40 coupler and the hook tongue 4 of the transition coupler, the coupling rod 1505 of the type 40 coupler contacts the inclined surface 2101 of the coupling plate 21, moves along the inclined surface 2101 to the rear side of the coupling plate, and is coupled with the hook tongue 17 of the transition coupler.

[0138] The following further describes the method of using the transition coupler from two perspectives: the coupling step and the uncoupling step.

[0139] Hanging steps:

[0140] like Figure 5a As shown, pull the 40-type formal coupler unhooking handle 1506, the hook tongue plate 1503 rotates clockwise, and the front cylindrical head of the connecting rod 18 of the transition coupler is placed into the hook tongue arc 1504 of the hook tongue plate 103;

[0141] like Figure 5b As shown, the unhooking handle 1506 of the 40-type formal coupler is released, and the hook tongue plate 1503 rotates counterclockwise under the action of the torsion spring, and the 40-type formal coupler connecting rod 1505 acts on the inclined surface 2101 of the connecting rod plate 21; Figure 5c As shown, the swing 40 type formal coupler connecting rod 21 enters the arc opening of the hook tongue 17 on the rear side of the connecting rod plate 21;

[0142] like Figure 5dAs shown, insert the stop pin 19, and install the R-type pin to fix the stop pin 19, so as to complete the connection between the transition coupler of the 40-type coupler and the 40 train coupler.

[0143] Unhooking steps:

[0144] Pull out the stop pin 19, and rotate the 40-type formal coupler connecting rod 1505 clockwise to make it rotate out of the arc opening of the connecting rod plate 21;

[0145] Pull the 40-type formal coupler unhooking handle 1506 to remove the cylindrical head of the front end of the connecting rod 18 of the transition coupler from the 40-type coupler tongue arc 1504. Complete the unhooking.

[0146] The present invention provides a lightweight integrated transition coupler, which can meet the lightweight requirements. The coupling process can be operated by one person, the operation method is simple, and the safety pin structure can prevent accidental uncoupling.

[0147] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transition coupler, characterized in that: include: Hook body: including a connecting end and a hook tail end, wherein the connecting end is used to connect with a train hook and includes a connecting surface; the hook tail end can be connected to a traction mechanism; Hook tongue: set on the hook body, used to connect with the hook rod of the train coupler; The connecting rod mounting platform is set on the hook body, between the connecting end of the hook body and the hook tail end; Connecting and hanging rod: detachably mounted on the mounting platform; The hook tongue and the connecting rod are arranged on both sides of the hook body; the length of the connecting rod is configured so that when it is installed on the connecting rod mounting platform, it can pass over the connecting surface to connect with the hook tongue of the train coupler.

2. The transition coupler according to claim 1, characterized in that: A connecting rod stopper mounting platform is further provided on the hook body, and the connecting rod stopper mounting platform is located on the same side of the connecting rod mounting platform, and is arranged in the direction close to the connecting end of the hook body relative to the connecting rod mounting platform; the transition coupler further includes a connecting rod stopper, and the connecting rod stopper can be detachably mounted on the connecting rod stopper mounting platform; after the connecting rod is installed on the connecting rod mounting platform and the connecting rod stopper is installed on the connecting rod stopper mounting platform, the connecting rod stopper is located on the outside of the connecting rod.

3. The transition coupler according to claim 1, characterized in that: The connecting rod includes an installation end and a connecting end, the installation end forms an insertion slot, the insertion slot is inserted into the connecting rod mounting platform, the connecting rod and the connecting rod mounting platform are fixed by a fixing member; the connecting end forms a connecting opening, and the hook tongue of the train coupler can be hooked at the connecting opening.

4. The transition coupler according to claim 2 or 3, characterized in that: The connecting rod baffle rod mounting platform includes a first mounting platform and a second mounting platform spaced apart in an upper and lower direction, and sockets are arranged opposite to each other on the first mounting platform and the second mounting platform, and the connecting rod baffle rod is inserted and installed between the sockets of the first mounting platform and the second mounting platform; in the longitudinal direction, the connecting rod mounting platform is located between the first mounting platform and the second mounting platform.

5. The transition coupler according to claim 1, characterized in that: The connecting end includes an upper connecting surface and a lower connecting surface spaced apart from each other, and the upper connecting surface and the lower connecting surface are connected via a hook body seat; the hook body seat includes an arc segment recessed from one side of the connecting end to one side of the hook tail to form an arc segment hook body.

6. A transition coupler, characterized in that: include: Hook body: including a connecting end and a hook tail end, wherein the connecting end is used to connect with a train hook and includes a connecting surface; the hook tail end can be connected to a traction mechanism; Hook tongue: set on the hook body, used to connect with the hook rod of the train coupler; The connecting rod mounting platform is set on the hook body, between the connecting end of the hook body and the hook tail end; Connecting rod: integrated with the hook body; The hook tongue and the connecting rod are arranged on both sides of the hook body; the length of the connecting rod is configured so that when it is installed on the connecting rod mounting platform, it can pass over the connecting surface to connect with the hook tongue of the train coupler.

7. The transition coupler according to claim 6, characterized in that: The connecting end includes an upper connecting surface and a lower connecting surface spaced apart from each other, and the upper connecting surface and the lower connecting surface are connected via a hook body seat; the hook body seat includes an arc segment recessed from one side of the connecting end to one side of the hook tail to form an arc segment hook body.

8. The transition coupler according to claim 6, characterized in that: A stop pin is installed on the hook body on one side of the hook tongue, and the installation position of the stop pin is configured as follows: after the connecting rod of the train coupler is connected with the hook tongue of the transition coupler, the stop pin is located on the outside of the connecting rod of the train coupler to limit the rotation of the connecting rod.

9. The transition coupler according to claim 6, characterized in that: The hook body is provided with a connecting plate, and a hook tongue is provided on the side of the connecting plate facing the hook tail.

10. The transition coupler according to claim 9, characterized in that: The side of the connecting plate facing the connecting surface is an inclined surface, and the inclined surface is located from the side close to the transition hook connecting rod to the outside of the transition hook, and is inclined toward the side close to the hook tail.

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