Car coupler uncoupling device

Abstract

The invention provides a car coupler uncoupling device. The car coupler comprises a coupler body, a coupler knuckle rotationally installed on the coupler body and a lock body pin, the lock body pin can lock or unlock rotation of the coupler knuckle, and the uncoupling device comprises a power assembly installed on the coupler body and comprising a telescopic power output end; the unhooking adapter plate is rotationally connected with the hook body and is rotationally connected with the power output end of the power assembly through an adapter shaft; in the extending process of the power output end, the plate body rotates to make contact with the lock body pin, and acting force rotating towards the interior of the hook body is applied to the lock body pin, so that the lock body pin unlocks the hook tongue. The manual unhooking assembly is connected with the lock body pin and can manually apply acting force rotating towards the interior of the hook body to the lock body pin so that the lock body pin can unlock the hook tongue. According to the invention, the integration of the automatic uncoupling device and the manual uncoupling device on the down-acting coupler is realized for the first time, the original coupler structure does not need to be greatly improved, and the operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of rail transportation, and particularly to a coupler uncoupling device. Background Art

[0002] Locomotive couplers can be divided into upper-acting couplers and lower-acting couplers according to the arrangement of the locking pins. The locking pin cooperates with the hook lock located inside the coupler body to control the unhooking operation of the coupler. The upper-acting coupler is provided with an upper locking pin component at the top of the coupler. By pulling the upper locking pin, the hook lock is controlled, and the opening and closing of the coupler is controlled. The lower-acting coupler is provided with a lower locking pin component at the bottom. By pushing the lower locking pin (the lower locking pin body moves in a curve), the hook lock is controlled, and the opening and closing of the coupler is controlled.

[0003] Usually, the coupler is equipped with an unhooking device to assist the unhooking operation of the coupler. According to the working form of the unhooking device, it can be divided into an automatic unhooking device and a manual unhooking device.

[0004] The unhooking device of mechanical couplers, especially the unhooking device of bottom-acting couplers, is mainly manual unhooking device. Figure 1 Take the lower-acting coupler shown as an example, which only has a manual unhooking function. One end of the hook-lifting rod is inserted into the lower locking pin body of the coupler, and the other end is placed in the anti-rotation groove on the fixed plate of the vehicle body. The anti-rotation groove is provided to prevent the operator from unhooking due to misoperation. When unhooking, the operator first lifts the hook-lifting rod to disengage it from the anti-rotation groove, and then rotates the hook-lifting rod counterclockwise to reach the unlocking position or the fully open position (locomotive couplers usually have locked, unlocked and fully open positions) after rotating a certain angle to achieve unhooking. In addition, before the coupler is connected, the operator is also required to operate the hook-lifting rod to move the coupler to the fully open position before the connection can be carried out.

[0005] The reason why the existing bottom-acting coupler cannot be equipped with an automatic unhooking device is that manual unhooking will interfere with automatic unhooking. The existing manual unhooking uses a hook-lifting rod to unhook. Since one end of the hook-lifting rod is inserted into the lower locking pin of the coupler (which can be understood as a fixed connection), and the other end is in the anti-rotation groove. If pneumatic unhooking is added, the lower locking pin body needs to be rotated, and the lower locking pin will drive the hook-lifting rod to rotate, but at this time the hook-lifting rod will be stuck in the anti-rotation groove, preventing unhooking, and automatic unhooking cannot be achieved.

[0006] The manual uncoupling method requires operators to get off the train to operate, resulting in low train marshaling efficiency and poor safety, especially in low temperature environments. It is urgent to invent an automatic uncoupling device to achieve coupler uncoupling by controlling the drive mechanism. At the same time, considering the stability of the coupler uncoupling work, the manual uncoupling device should also be redesigned, and a coupler uncoupling that integrates manual uncoupling and automatic uncoupling functions should be studied to ensure that automatic and manual uncoupling do not affect each other, and retain the manual uncoupling function for emergency use.

[0007] Take the patent with application number 202211108572.2 as an example, which is an upper-acting coupler equipped with automatic unhooking. The electric cylinder drives the hook-lifting rod to move, controls the rotation of the top opening device, and then completes the automatic unhooking of the coupler. In the absence of electricity, it can also be unhooked manually. The unhooking can be completed in both automatic and manual states, but it is not suitable for unhooking couplers with lower-acting lock pin bodies and hook locks. Summary of the invention

[0008] The purpose of the present invention is to solve one of the above technical problems and to provide a coupler unhooking device. The coupler structure device integrates an automatic unhooking device and a manual unhooking device, and is particularly suitable for bottom-acting couplers.

[0009] To achieve the above object, the technical solution adopted by the present invention is:

[0010] A coupler unhooking device is used for coupler unhooking operation, the coupler comprises a hook body, a coupler tongue rotatably mounted on the hook body, and a locking pin, the locking pin can lock or unlock the rotation of the coupler tongue, the unhooking device comprises:

[0011] Power assembly: installed on the hook body, including a retractable power output end;

[0012] Unhooking adapter plate: rotatably connected to the hook body, and rotatably connected to the power output end of the power assembly via the adapter shaft; during the extension of the power output end, the plate body rotates to contact the lock body pin, exerting a force on the lock body pin to rotate toward the inside of the hook body, so that the lock body pin unlocks the hook tongue;

[0013] Manual unhooking assembly: connected to the lock body pin, capable of manually applying a force to the lock body pin to rotate it toward the inside of the hook body, so that the lock body pin unlocks the hook tongue;

[0014] The lock body pin forms a rod-shaped plate body matching part. When the power output end is extended, the unhooking adapter plate acts on the plate body matching part to drive the lock body pin to move.

[0015] In some embodiments of the present invention, the unhooking adapter plate includes a plate body, and the plate body is provided with a first shaft connection hole and a second shaft connection hole;

[0016] The telescopic end of the power assembly is rotatably connected to the first shaft connection hole via the adapter shaft;

[0017] The second shaft connection hole is rotatably mounted on the hook body via the shaft fixing piece.

[0018] In some embodiments of the present invention, the mating ends of the unhooking adapter plate and the lock body pin form an arc-shaped notch. During the extension of the power output end, when the plate body rotates to contact the lock body pin, the mating portion of the plate body is located in the arc-shaped notch.

[0019] In some embodiments of the present invention, the mating portion of the plate body is rod-shaped, and a supporting plate is arranged on the plate body. The supporting plate is arranged in a direction parallel to the mating portion of the plate body, and is an arc-shaped plate, and its curvature is configured so that when the power output end is extended and the plate body is rotated, the mating portion of the plate body is always in contact with the surface of the supporting plate.

[0020] In some embodiments of the present invention, the power assembly is a cylinder, and an air cavity wall of the cylinder has a through air hole, and the through air hole is connected to an air supply circuit of the vehicle.

[0021] In some embodiments of the present invention, the manual unhooking assembly includes a connecting rod, and a first end of the connecting rod is connected to the lock body pin.

[0022] In some embodiments of the present invention, the manual unhooking assembly further comprises a hook-shaped member;

[0023] The first end of the connecting rod is provided with a hook mounting portion, the hook mounting portion is provided with a threaded hole, and the first end of the hook-shaped member is mounted in cooperation with the threaded hole;

[0024] The hook-shaped member is hung on the pin body of the lock body pin.

[0025] In some embodiments of the present invention, the connecting rod includes a main rod portion and a bent portion disposed relative to the main rod portion, the first end of the connecting rod is located at the main rod portion, and an annular ring is formed on the bent portion;

[0026] The manual unhooking assembly also includes a hook lifting rod, which includes a main rod portion, one end of which forms a U-shaped structure; the hook lifting rod is inserted into the annular ring opening of the connecting rod, and the two straight sections of the U-shaped structure are both located below the bent portion of the connecting rod.

[0027] When the power assembly acts to unhook, the power output end extends to drive the lock body pin to move, the lock body pin drives the connecting rod to move, the annular ring portion of the connecting rod rotates relative to the hook lifting rod, and the hook lifting rod stops;

[0028] When the hook lifting rod acts to unhook, the hook lifting rod rotates and acts on the connecting rod through the U-shaped structure to drive the connecting rod to rotate and drive the lock body pin to move.

[0029] In some embodiments of the present invention, the main rod portion has a locking rod section, and the rod wall of the locking rod section forms a horizontal wall surface; the unhooking device also includes a locking plate installed on the vehicle body, and the locking plate has an opening, and the opening includes a first aperture section and a second aperture section that are connected, and the first aperture section includes a straight hole inner wall, and when the locking rod section is located in the first aperture section, the horizontal wall surface cooperates with the first aperture section to limit the rotation of the hook lifting rod, and the second aperture section has an inner diameter larger than the first aperture section, so that the hook lifting rod can rotate when it is located in the second aperture section.

[0030] In some embodiments of the present invention, a support block is further included which is mounted on the vehicle body. The support block has a through hole, the lifting hook rod passes through the through hole, and the main rod portion is supported by the support block.

[0031] Compared with the prior art, the coupling unhooking device provided by the present invention has the following beneficial effects:

[0032] 1. The present invention patent designs a lower-acting locomotive coupler unhooking device, which consists of an automatic unhooking device and a manual unhooking device. It realizes the integration of the automatic unhooking device and the manual unhooking device on the lower-acting coupler for the first time. The automatic unhooking device can realize the automatic unhooking and automatic opening of the coupler through the driving mechanism, without the operator getting off the vehicle to operate. The manual unhooking device can also realize unhooking independently, without affecting the automatic unhooking device.

[0033] 2. The present invention designs a device for automatically unhooking the hook of a locomotive under action, which realizes the unhooking of the hook by controlling the driving mechanism, avoiding the operator from getting off the train to operate, and solves the problem that the hook of the locomotive under action cannot be automatically unhooked. It improves the train marshaling efficiency and the safety of the operator.

[0034] 3. The present invention designs a device for manually unhooking a lower-acting locomotive coupler. The manual unhooking device adopts a two-stage design, retains the anti-rotation function, and can be non-interfering with the automatic unhooking device.

[0035] 4. The automatic unhooking device of the present invention is arranged on the coupler body and has a high degree of integration, thereby avoiding the influence of the spatial movement of the coupler (stretching, compression, swinging and jumping, etc.) on the unhooking device.

[0036] 5. The present invention does not require major improvements to the original coupler structure. It only requires adding a lock pin rod to the original lock pin to achieve coordination with the automatic unhooking structure. The modification of the original coupler is very small, and the automatic and manual unhooking functions can be achieved, which is suitable for promotion on couplers. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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.

[0038] Figure 1 It is a schematic diagram of the structure of a coupler and a coupler uncoupling device in the prior art.

[0039] Figure 2 Schematic diagram of the coupler structure.

[0040] Figure 3a This is a schematic diagram of the lock body pin structure from the first perspective.

[0041] Figure 3b This is a schematic diagram of the lock body pin structure from the second perspective.

[0042] Figure 4 It is a schematic diagram of the structure of the cylinder and the cylinder mounting seat.

[0043] Figure 5 It is a schematic diagram of the structure of the unhooking adapter plate.

[0044] Figure 6a This is a partial enlarged view of the manual unhooking part.

[0045] Figure 6b It is a schematic diagram of the transfer shaft structure.

[0046] Figure 7 Schematic diagram of the connecting rod and hook structure.

[0047] Figure 8 This is a schematic diagram of the hook rod structure.

[0048] Fig. 9 It is a structural schematic diagram of the coupler uncoupling device when the coupler is locked.

[0049] Fig.10 It is a first-person structural diagram of the coupler uncoupling device in the automatic uncoupling structure action state.

[0050] Fig.11 It is a second perspective structural schematic diagram of the coupler uncoupling device in the automatic uncoupling structure action state.

[0051] Fig.12 It is a structural schematic diagram of the coupler uncoupling device in the manual uncoupling structure working state.

[0052] 1- hook body;

[0053] 2- hook tongue;

[0054] 3-lock body pin, 301-arc-shaped contraction groove, 302-extension rod, 303-lock pin rod, 304-first side pin body, 305-second side pin body, 306-opening;

[0055] 4-hook lock, 401-arc-shaped slide groove, 402-hook tongue matching part;

[0056] 5-unhooking adapter plate, 501-plate body, 502-first shaft connection hole, 503-second shaft connection hole, 504-arc-shaped notch, 505-supporting plate;

[0057] 6-cylinder, 601-insertion block, 602-air hole, 603-bearing;

[0058] 7- Cylinder mounting seat;

[0059] 8- adapter shaft;

[0060] 9-fixed bolt shaft;

[0061] 10-Mounting seat;

[0062] 11-connecting rod, 1101-hook mounting portion, 1102-threaded hole, 1103-main rod portion, 1104-bending portion, 1105-annular ring opening;

[0063] 12-hook rod, 1201-main rod, 1202-U-shaped structure, 1203-horizontal wall;

[0064] 13-hook;

[0065] 14-locking plate, 1401-first aperture section, 1402-second aperture section;

[0066] 15-support block, 1501-through hole;

[0067] 16-pin shaft. DETAILED DESCRIPTION

[0068] 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.

[0069] 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.

[0070] The terms "first" and "second" are used for descriptive purposes only and are not intended to imply relative importance.

[0071] The invention provides a coupler unhooking device, which is used for coupler unhooking operation.

[0072] First, let's introduce the structure of the coupler. Figure 2 , which is a structure of a bottom-acting coupler. The coupler comprises a coupler body 1, a coupler tongue 2 rotatably mounted on the coupler body 1, a lock body pin 3 and a coupler lock 4. As a bottom-acting coupler, the lock body pin 3 is located below the coupler body 1, and the lock body pin 3 can lock or unlock the rotation of the coupler tongue.

[0073] The structure of the lock body pin 3 is shown in FIG3 , wherein the main body thereof includes a head with an arc-shaped notch 301 , and the head is positioned upward, that is, toward the inside of the hook body 1 . A lock pin rod 303 is rotatably mounted on the lock body pin 3 .

[0074] The hook lock 4 has a hook lock pin mating part and a hook tongue mating part 402. The hook lock pin mating part includes an arc-shaped slide groove 401, and the lock pin rod 303 is located in the slide groove 401. The lock pin rod 303 can move in the arc-shaped slide groove 401. When the coupler is locked, the hook lock is connected with the hook tongue when it is connected, and the hook tongue mating part 402 locks the hook tongue 2, restricting the movement of the hook tongue 2. The movement of the hook lock 4 is locked by the locking structure. When the lock pin body 3 is applied with force, it will make a curved movement. When the hook lock pin 3 rotates toward the inside of the hook body 1, it pushes the lock pin rod 303 to slide in the arc-shaped slide groove 401. After the idle stroke of the slide groove is completed, it moves upward against the hook lock 4, applying force to the hook lock 4. After the hook lock 4 moves upward, it will not block the rotation of the hook tongue 2. The hook tongue 2 rotates freely. The coupler is in the unlocked state, and the movement of the hook lock 4 is unlocked. The lock body pin 3 drives the hook lock 4 to rotate, and the hook tongue mating part 402 is free from the restriction on the hook tongue 2, and the coupler is unlocked.

[0075] The structure of the above coupler belongs to the prior art and will not be described in detail.

[0076] The unhooking device includes an automatic unhooking component and a manual unhooking component, and the two parts can act independently without interfering with each other.

[0077] The automatic unhooking component part includes a power component, an unhooking adapter plate 5, an adapter shaft 8, etc. Among them, the power component can be a cylinder or an electric cylinder, etc., and has a power output end. In this embodiment, the power component is taken as an example of a cylinder 6 to illustrate the composition and working principle of the automatic structure device.

[0078] The cylinder 6 is mounted on the hook body 1 through the cylinder mounting seat 7, and includes a retractable power output end; the structure of the cylinder 6 is referenced Figure 4 , the structure of the cylinder mounting seat 7 is referenced Figure 4The cylinder mounting seat 7 has two protruding blocks arranged at intervals, and a mounting shaft can be installed between the two protruding blocks. The cylinder body of the cylinder seat forms an insertion block 601, and a mounting hole is formed on the insertion block 601, and the mounting hole is inserted on the mounting shaft. Since the coupler in this embodiment is a bottom-acting coupler, the cylinder 6 is installed tilted downward, and the cylinder rod part is tilted downward. If the automatic unhooking device is applied to a top-acting coupler, then correspondingly, the cylinder 6 is installed tilted upward.

[0079] The unhooking adapter plate 5 is rotatably connected to the hook body 1 and the power output end of the cylinder 6. In this embodiment, the unhooking adapter plate 5 is rotatably connected to the cylinder rod of the cylinder 6. During the extension of the cylinder rod, the plate body rotates to contact the lock body pin 3, and applies a force to the lock body pin 3 to rotate toward the inside of the hook body 1, so that the lock body pin 3 unlocks the hook tongue 2. Specifically, when the cylinder rod is extended, a force is applied to the unhooking adapter plate 5, and the unhooking adapter plate 5 rotates toward the inside of the hook body 1, contacts the hook lock 4, drives the hook lock 4 to rotate, and disengages from the hook tongue 2.

[0080] refer to Figure 5 In some embodiments of the present invention, the unhooking adapter plate 5 includes a plate body 501, on which a first shaft connection hole 502 and a second shaft connection hole 503 are provided; the telescopic end of the cylinder is rotatably connected to the first shaft connection hole 502 via the adapter shaft 8; and the second shaft connection hole 503 is rotatably mounted on the hook body 1 via the shaft fixing member. Specifically, the structure of the adapter shaft 8 is referred to as Figure 6b The end of the cylinder rod is connected to a transfer shaft 8, which is arranged horizontally. One end of the transfer shaft 8 is connected to the cylinder rod, and the other end passes through the first shaft connection hole 502. A fixing bolt shaft 9 is installed at the position of the second shaft connection hole 503, and a mounting seat 10 is designed. The structure of the mounting seat 10 is referenced Figure 7 The mounting seat 10 is fixedly mounted on the hook body 1 , and has an axial connection hole. The fixing bolt shaft 9 passes through the second mounting hole 503 and the axial connection hole, so that a relatively rotatable structure is formed between the unhooking adapter plate 5 and the mounting seat 10 .

[0081] As a preferred embodiment, a bearing 603 is provided at the power output end of the cylinder 6, and the transfer rod 8 is connected to the bearing 603. The design of the bearing can increase the freedom of movement between the cylinder 6 and the transfer rod 8, and avoid the occurrence of a jamming phenomenon during the linkage between the two.

[0082] In order to solve the problem of matching between the unhooking adapter plate 5 and the lock body pin 3, in some embodiments of the present invention, an arc-shaped notch 504 is formed at the matching end of the plate body 501 and the lock body pin 3, and a plate body matching part is formed on the lock body pin 3. During the extension process of the power output end, when the plate body 501 rotates to contact the lock body pin, the plate body matching part is located in the arc-shaped notch 504.

[0083] In some embodiments of the present invention, the plate body matching part is in the shape of a rod, and is an extension rod 302 arranged on the side of the lock body pin 3. During the extension of the power output end of the cylinder 6, the unhooking adapter plate acts on the plate body matching part to drive the lock body pin 3 to move.

[0084] The arc-shaped notch 504 plays a role in exerting a force on the lock body pin 3 during the unhooking process. Since the extension rod 302 has a certain length, the contact area between the extension rod 302 and the arc-shaped notch 504 is limited. It is easy to cause uneven force to be applied to the extension rod 302 only through the arc-shaped notch 504, resulting in uneven force. A supporting plate 505 is provided on the plate body 501. The supporting plate 505 is arranged in a direction parallel to the matching part of the plate body. It is an arc-shaped plate, and its curvature is configured so that when the power output end (i.e., the cylinder rod) extends and the plate body 501 rotates, the matching part of the plate body 501 always fits the plate surface of the supporting plate 505. Specifically, the supporting plate 505 is an extended plate section arranged on the side of the plate body 501. The curvature of the supporting plate 505 is approximately equal to the curvature of the arc-shaped notch 504. When the cylinder rod extends to push the lock body pin 3 to move, the support plate 505 supports the extension rod 302 and applies a force to the lock body pin 3 by acting on the extension rod 302. The unhooking of the support plate 505 increases the action area and can improve the reliability of the automatic unhooking action.

[0085] Since the cylinder 6 needs air to work, in some embodiments of the present invention, a through air hole is provided on the air cavity wall of the cylinder 6 , and the through air hole is connected to the air supply circuit of the vehicle. This structure solves the problem of air consumption of the cylinder 6 .

[0086] The manual unhooking assembly is connected to the lock body pin 3, and can manually apply a force to the lock body pin 3 to rotate it inside the hook body, so that the lock body pin 3 unlocks the hook tongue 2. The manual unhooking device includes a connecting rod 11, and in some embodiments, also includes a hook lifting rod 12. Figure 3a , Figures 3b to 6a , a detailed description of the unhooking of the manual unhooking component is given.

[0087] In some embodiments of the present invention, the manual unhooking assembly includes a connecting rod 11 , and a first end of the connecting rod 11 is connected to the lock body pin 3 .

[0088] refer to Figure 7 In some embodiments of the present invention, as a specific connection form between the connecting rod 11 and the lock body pin 3, the manual unhooking assembly also includes a hook-shaped member 13.

[0089] The first end of the connecting rod 11 is provided with a hook mounting portion 1101, the hook mounting portion 1101 is provided with a threaded hole 1102, the first end of the hook member 13 is provided with a thread, the first end of the hook member 13 is screwed into the threaded hole 1102, and the hook member 13 is installed in cooperation with the threaded hole 1102. The hook member 13 is hung on the pin body of the lock body pin 3.

[0090] like Figure 3a and Figure 3b The structure of the lock body pin 3 shown in the figure, the lock body pin 3 comprises a first side pin body 304 and a second side pin body 305 arranged at intervals, each side pin body is correspondingly provided with an opening 306, a connecting shaft is installed between the openings, and the lock pin rod 303 is rotatably installed on the connecting shaft. The side close to the connecting rod 11 is defined as the first side pin body 304. The hook-shaped member 13 is hung on the first side pin body 304. In order to facilitate the hanging of the hook-shaped member 13, the side walls of the first side pin body 304 are contracted to the opposite side to form a double-sided arc-shaped contraction groove 301 arranged oppositely, and the hook-shaped member 13 is hung at the position of the arc-shaped contraction groove 301.

[0091] Since it is inconvenient to directly operate the connecting rod 11, and it is inconvenient to lock the position of the connecting rod 11. In order to facilitate the operation of the connecting rod 11, in some embodiments of the present invention, the connecting rod 11 includes a main rod portion 1103 and a bending portion 1104 bent relative to the main rod portion 1103, the first end of the connecting rod 11 is located at the main rod portion 1103, and an annular ring 1105 is formed on the bending portion 1104; the annular ring 1105 can be a circle processed separately on the bending portion 1104, or a ring formed by bending at the end of the bending portion 1104.

[0092] refer to Figure 8 The manual unhooking assembly also includes a hook lifting rod 12, which includes a main rod portion 1201, and one end of the main rod portion 1201 forms a U-shaped structure 1202; the hook lifting rod 12 is inserted into the annular ring opening 1105 of the connecting rod, and the two straight sections of the U-shaped structure 1202 are both located at the lower part of the bending portion 1104 of the connecting rod.

[0093] Based on the above structure, when the power assembly acts to unhook, the power output end extends to drive the lock body pin 3 to move, the lock body pin drives the connecting rod 11 to move, the connecting rod annular ring 1105 part rotates relative to the hook lifting rod, and the hook lifting rod 12 stops; when the hook lifting rod acts to unhook, the hook lifting rod 12 rotates and acts on the connecting rod 11 through the U-shaped structure to drive the connecting rod 11 to rotate and drive the lock body pin 3 to move. This structure can prevent the hook lifting rod 12 of the manual unhooking part from moving during the automatic unhooking process, avoid interference between the two parts, and solve the problem of difficult to set power unhooking.

[0094] In some embodiments of the present invention, the main rod portion 1201 has a locking rod section, and the rod wall of the locking rod section forms a horizontal wall surface 1203; the unhooking device also includes a locking plate 14 installed on the vehicle body, and the locking plate has an opening, and the opening includes a first aperture section 1401 and a second aperture section 1402 that are connected, and the first aperture section 1401 includes a straight inner wall of the hole, and when the locking rod section is located in the first aperture section 1401, the horizontal wall surface cooperates with the first aperture section 1401 to limit the rotation of the hook lifting rod, and the second aperture section 1402 has an inner diameter greater than the first aperture section 14011, so that the hook lifting rod 12 can rotate when it is located in the second aperture section 1402. The working principle is: the aperture size of the second aperture section 1402 is such that when the hook lifting rod 12 is located inside it, the horizontal wall surface cooperates with the straight inner wall of the hole of the first aperture section 1401, and the two planes cooperate with each other to limit the rotation of the hook lifting rod 12

[0095] Since the hook rod 12 is relatively long, if the supporting structure of the hook rod 12 is not designed, the hook rod 12 is easy to be lifted. In some embodiments of the present invention, a support block 15 is installed on the vehicle body, and a through hole 1501 is provided on the support block 15. The hook rod 12 passes through the through hole 1501, and the main rod portion 1201 of the hook rod 12 is supported by the support block 15.

[0096] The working principle of the coupler unhooking device provided by the present invention is as follows.

[0097] 1. Initial state of the unhooking device.

[0098] One end of the driving cylinder 6 is connected to the cylinder mounting seat 7 through a pin shaft 16, and the driving cylinder 6 can rotate relative to the cylinder mounting seat 7 around the pin shaft 16, and the other end is installed on the cylinder adapter shaft 8. The driving cylinder 6 can drive the cylinder adapter shaft 8 to make the unhooking adapter plate 5 rotate around the fixing bolt shaft 9.

[0099] The straight sections of the hook lifting rod 12 on both sides are planes and fall into the anti-rotation groove on the vehicle body, and the straight sections pass through the through hole 1501 of the hook lifting rod support block 15. One end of the connecting rod 11 is inserted into one side of the U-shaped structure, and the other end is inserted into the lower locking pin body 3 of the coupler through the hook-shaped member 13.

[0100] 2. Automatic unhooking process.

[0101] When the two hooks in the coupled state need to be automatically unhooked, the gas on the vehicle enters the driving cylinder 6 through the air inlet, and the cylinder piston starts to move, driving the unhooking adapter plate 5 to rotate around the fixed bolt shaft 9 through the cylinder adapter shaft 8. The arc groove at the lower end of the unhooking adapter plate 5 drives the cylindrical rod of the lower locking pin body 3 to move in a curve, thereby pushing the lower locking pin of the hook, and the lower locking pin of the hook pushes the hook lock to move upward. At the same time, as the lower locking pin body 3 rotates, the connecting rod 11 is forced to rotate around one side of the U-shaped structure of the hook lifting rod 12. The hook lifting rod 12 does not rotate, so the entire unhooking action will not be blocked by the anti-rotation groove on the vehicle body fixing plate.

[0102] After the driving cylinder 6 is de-energized, it returns to its original position under the action of the spring, and drives the unhooking adapter plate 5 to return to its original position through the cylinder adapter shaft 8. The hook lock will fall on the push iron, and the lower lock pin body 3 will not return to its original position. At this time, the coupler is in the unlocking position, and the two couplers can be separated.

[0103] 3. Manual unhooking process.

[0104] When the two hooks in the connected state need to be manually unhooked, the operator lifts the hook-lifting rod 12 from the first aperture section 1401 of the vehicle body locking plate, and after it is out of the anti-rotation groove, the operating part of the hook-lifting rod 12 is rotated, and the U-shaped structure 1202 of the hook-lifting rod 12 drives the connecting rod 11 and the hook-shaped member 13 to rotate together, and the lower lock pin body 3 also rotates accordingly to achieve unhooking. At this time, the automatic unhooking device does not work, and the entire manual unhooking process does not affect the automatic unhooking device.

[0105] 4. Place the front hook in the fully open position

[0106] Before the locomotive couplers are connected, at least one of the couplers should be in the fully open position. This can be achieved by an automatic uncoupling device or a manual uncoupling device.

[0107] 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 coupler unhooking device, used for coupler unhooking operation, characterized in that: The coupler comprises a hook body, a hook tongue rotatably mounted on the hook body, and a locking pin, wherein the locking pin can lock or unlock the rotation of the hook tongue, and the unhooking device comprises: Power assembly: installed on the hook body, including a retractable power output end; Unhooking adapter plate: rotatably connected to the hook body, and rotatably connected to the power output end of the power assembly via the adapter shaft; during the extension of the power output end, the plate body rotates to contact the lock body pin, exerting a force on the lock body pin to rotate toward the inside of the hook body, so that the lock body pin unlocks the hook tongue; Manual unhooking assembly: connected to the lock body pin, capable of manually applying a force to the lock body pin to rotate it toward the inside of the hook body, so that the lock body pin unlocks the hook tongue; Wherein, the lock body pin forms a rod-shaped plate body matching part, and during the extension of the power output end, the unhooking adapter plate acts on the plate body matching part to drive the lock body pin to move.

2. The coupler unhooking device according to claim 1, characterized in that: The unhooking adapter plate comprises a plate body, and the plate body is provided with a first shaft connection hole and a second shaft connection hole; The telescopic end of the power assembly is rotatably connected to the first shaft connection hole via the adapter shaft; The second shaft connection hole is rotatably mounted on the hook body via the shaft fixing piece.

3. The coupler unhooking device according to claim 1 or 2, characterized in that: The matching ends of the unhooking adapter plate and the lock body pin form an arc-shaped notch. During the extension of the power output end, when the plate body rotates to contact the lock body pin, the matching portion of the plate body is located in the arc-shaped notch.

4. The coupler unhooking device according to claim 3, characterized in that: A supporting plate is arranged on the plate body. The supporting plate is arranged in a direction parallel to the matching part of the plate body and is an arc-shaped plate. Its curvature is configured so that when the power output end extends and the plate body rotates, the matching part of the plate body always fits the plate surface of the supporting plate.

5. The coupler unhooking device according to claim 1, characterized in that: The power assembly is a cylinder, and the power assembly is a cylinder. The air cavity wall of the cylinder is provided with a through air hole, and the through air hole is connected to the air supply path of the vehicle.

6. The coupler unhooking device according to claim 1, characterized in that: The manual unhooking assembly includes a connecting rod, a first end of which is connected to a lock body pin.

7. The coupler unhooking device according to claim 6, characterized in that: The manual unhooking assembly further comprises a hook-shaped member; The first end of the connecting rod is provided with a hook mounting portion, the hook mounting portion is provided with a threaded hole, and the first end of the hook-shaped member is mounted in cooperation with the threaded hole; The hook-shaped member is hung on the pin body of the lock body pin.

8. The coupler unhooking device according to claim 6, characterized in that: The connecting rod comprises a main rod portion and a bent portion arranged in a bent manner relative to the main rod portion, the first end of the connecting rod is located at the main rod portion, and an annular ring is formed on the bent portion; The manual unhooking assembly further comprises a hook lifting rod, the hook lifting rod comprises a main rod portion, one end of the main rod portion forms a U-shaped structure; the hook lifting rod is inserted into the annular ring opening of the connecting rod, and the two straight sections of the U-shaped structure are both located at the lower part of the bent portion of the connecting rod; When the power assembly acts to unhook, the power output end extends to drive the lock body pin to move, the lock body pin drives the connecting rod to move, the annular ring portion of the connecting rod rotates relative to the hook lifting rod, and the hook lifting rod stops; When the hook lifting rod acts to unhook, the hook lifting rod rotates and acts on the connecting rod through the U-shaped structure to drive the connecting rod to rotate and drive the lock body pin to move.

9. The coupler unhooking device according to claim 8, characterized in that: The main rod portion has a locking rod section, and the rod wall of the locking rod section forms a horizontal wall surface; the unhooking device also includes a locking plate installed on the vehicle body, and the locking plate has an opening, and the opening includes a first aperture section and a second aperture section that are connected, and the first aperture section includes a straight hole inner wall, and when the locking rod section is located in the first aperture section, the horizontal wall surface cooperates with the first aperture section to limit the rotation of the hook lifting rod, and the second aperture section has an inner diameter larger than the first aperture section, so that the hook lifting rod can rotate when it is located in the second aperture section.

10. The coupler unhooking device according to claim 8, characterized in that: It also includes a support block installed on the vehicle body, the support block is provided with a through hole, the hook rod passes through the through hole, and the main rod part is supported by the support block.

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