Tight-lock coupler

Abstract

The utility model relates to the technical field of tight-lock couplers, in particular to a tight-lock coupler which comprises a coupler head body, a connecting hook tongue is arranged in the coupler head body, the connecting hook tongue is provided with a guide cambered surface and a jaw, and a connecting pull rod and an uncoupling device are arranged on the connecting hook tongue. One end of the hook head body is provided with a hook head fixing seat, the other end of the hook head body is provided with a connecting panel, one side of the connecting panel is provided with a guide convex cone, the top of the guide convex cone is provided with a through hole, and the inner side of the guide convex cone is provided with a limiting surface which is inclined from the cone top to the side far away from a coupling pull rod; one end of the coupling pull rod is provided with a pull rod side face, and the other end of the coupling pull rod is provided with a front end cylinder and a first limiting shoulder. According to the automatic coupling device, the to-be-coupled state of the car couplers is omitted in the coupling process, the coupling hook tongue is rotated to drive the coupling pull rod to act, and the two car couplers are in the automatic coupling locking state or the external force automatic uncoupling state.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tight coupling car hook, concretely relates to a tight coupling car hook. BACKGROUND

[0002] In the field of railway transportation, the coupling and uncoupling operation of the train is an important link to ensure the normal marshalling and operation of the train. At present, most of the tight coupling car hooks produced in China adopt the 10 type car hook in line with the EN15020 standard. The 10 type car hook has three states of coupling, waiting to be coupled and uncoupling. In the process of train marshalling, the two car hooks at both ends of the marshalling position need to be adjusted to the waiting to be coupled state at the same time, and before coupling, the operator must carefully check and confirm the state of the car hook, so as to carry out the marshalling operation to realize the automatic coupling in collision. Such a complicated operation process seriously reduces the efficiency of train coupling and marshalling, increases the operation time and labor cost, and to some extent, limits the efficient operation of railway transportation.

[0003] Therefore, it is necessary to design a tight coupling car hook to improve the above problems.

[0004] A new type of tight coupling car hook capable of simplifying the operation process and improving the efficiency of marshalling has important practical significance. SUMMARY

[0005] In order to solve the problems of the prior art, the utility model provides a tight coupling car hook, which comprises a hook head body, a coupling hook tongue is arranged in the inside of the hook head body, the coupling hook tongue is provided with a guide arc surface and a tiger mouth, a coupling pull rod and an uncoupling device are arranged on the coupling hook tongue;

[0006] One end of the hook head body is provided with a hook head fixing seat, the other end of the hook head body is provided with a connecting panel, a guide convex cone is arranged at one side position of the connecting panel, a through hole is formed in the top of the guide convex cone, and a limiting surface inclined from the top of the cone to the side away from the coupling pull rod is arranged on the inner side of the guide convex cone;

[0007] One end of the coupling pull rod is provided with a pull rod side surface, and the other end of the coupling pull rod is provided with a front end cylinder and a first limiting shoulder; one end of the coupling hook tongue and the coupling pull rod is connected with the hook head body, and the other end of the coupling pull rod is further connected with the inner side of the hook head body through a stretching spring, so as to rotate the coupling pull rod counterclockwise under the action of the stretching spring, make the front end cylinder of the coupling pull rod slide into the tiger mouth of the coupling hook tongue of the opposite car hook, and continuously rotate the coupling hook tongue counterclockwise through the coupling pull rod, until the first limiting shoulder of the coupling pull rod abuts against the limiting surface in the through hole of the guide convex cone, so that the two opposite car hooks are in the automatic coupling locking state;

[0008] The protrusion is provided with a second limiting shoulder on the outer side wall of the continuous coupling draw bar, and one end of the continuous coupling tongue and the uncoupling device is connected with the hook head body, so that when the second limiting shoulder of the continuous coupling tongue is in contact with the draw bar side surface of the continuous coupling draw bar by operating the uncoupling device to rotate clockwise, the continuous coupling tongue continues to rotate the continuous coupling draw bar clockwise, until the front end cylinder of the continuous coupling draw bar is separated from the continuous coupling tongue jaw of the opposite car coupler, and the two oppositely arranged car couplers enter an automatic uncoupling state under external force;

[0009] Further, the inclination direction of the first limiting shoulder is consistent with the inclination direction of the limiting surface;

[0010] Further, the inclination direction of the second limiting shoulder is consistent with the inclination direction of the draw bar side surface of the continuous coupling draw bar,

[0011] Further, the protrusion is provided with a tongue pin shaft at the center, and the continuous coupling tongue is installed on the hook head body through the tongue pin shaft;

[0012] Further, one end of the continuous coupling tongue and the continuous coupling draw bar is installed on the hook head body through a draw bar pin shaft, and one end of the continuous coupling tongue and the uncoupling device is installed on the hook head body through an uncoupling pin shaft;

[0013] Further, the close-contact car coupler further comprises a sensor, the sensor is installed on the connecting panel, and a controller is connected with the sensor, so as to sense the distance between the coupling panels of the two opposite car couplers and feed back the distance signal;

[0014] Further, the uncoupling device comprises an uncoupling connecting rod, an uncoupling rotating rod, an uncoupling handle and an uncoupling rod torsional spring, one end of the uncoupling connecting rod is connected with the continuous coupling tongue, the other end of the uncoupling connecting rod is connected with one end of the uncoupling rotating rod through a pin shaft, the other end of the uncoupling rotating rod is connected with the uncoupling handle, and the uncoupling rotating rod is sleeved with the uncoupling rod torsional spring;

[0015] The utility model discloses the beneficial effects of:

[0016] (1) the close-contact car coupler of the utility model makes the car coupler in the continuous coupling process and makes the state of waiting to be hung, and the close-contact car coupler comprises a hook head body, a continuous coupling tongue and a continuous coupling draw bar, only needs to rotate the continuous coupling tongue and drives the continuous coupling draw bar action, makes two car couplers realize automatic continuous coupling locking state or external force automatic uncoupling state, and the car couplers at both ends of the marshalling position are not needed manual operation adjustment to the state of waiting to be hung before train marshalling continuous coupling, directly carries out the continuous coupling marshalling operation, greatly simplifies the operation process, improves train marshalling efficiency, reduces operation time and manpower cost;

[0017] (2) The utility model discloses a sensor is arranged to the distance between the connecting panel of opposite car coupler and feedback distance signal, and the driver can be fed back the connecting state, and the driver can understand the connecting situation of car coupler in real time, avoids the security risk caused by not connecting in place, improves the safety and reliability of train operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the inside structure schematic diagram of car coupler of the utility model;

[0019] Figure 2 It is the outside structure and sensor position structure schematic diagram of car coupler of the utility model;

[0020] Figure 3 It is the structure schematic diagram of connecting coupler tongue of the utility model;

[0021] Figure 4 It is the structure schematic diagram of connecting pull rod of the utility model;

[0022] Figure 5 It is the structure schematic diagram of car coupler connecting completion state of the utility model;

[0023] Figure 6 It is the structure schematic diagram of the uncoupling state of the utility model;

[0024] Figure 7 It is the structure schematic diagram of the uncoupling state of the utility model.

[0025] Reference Signs:

[0026] In the drawing: 1-hook head body, 2-connecting coupler tongue, 3-connecting pull rod, 4-stretching spring, 5-pull rod pin shaft, 6-guiding camber surface, 7-tiger mouth, 8-first limit shoulder, 9-second limit shoulder, 10-front end cylinder, 11-guiding convex cone, 12-sensor, 13-coupler tongue pin shaft, 14-connection panel, 15-pull rod side, 16-uncoupling connecting rod, 17-uncoupling handle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0028] Please refer to Figures 1-7The utility model provides a kind of close contact type car hook, mainly used as train 12 type car hook, including hook head body 1, the inside of hook head body 1 is provided with continuous hook tongue 2, the continuous hook tongue 2 is provided with guide camber 6 and tiger mouth 7, the continuous hook tongue 2 is provided with continuous pull rod 3 and uncoupling device on it;

[0029] One end of the hook head body 1 is provided with a hook head fixing seat, the other end of the hook head body 1 is provided with a connecting panel, the connecting panel is provided with a guide convex cone 11 at one side, which is used to assist the car hook in the process of continuous coupling to accurately align and improve the success rate of continuous coupling; the guide convex cone 11 is provided with a through hole at the top, which is used to pass the other end of the continuous pull rod 3, and the inner side of the guide convex cone 11 is provided with a limiting surface that is inclined from the top of the cone to the side away from the continuous pull rod 3;

[0030] One end of the continuous pull rod 3 is provided with a pull rod side 15, and the other end of the continuous pull rod 3 is provided with a front end cylinder 10 and a first limiting shoulder 8; one end of the continuous hook tongue 2 and the continuous pull rod 3 is connected with the hook head body 1, and the other end of the continuous pull rod 3 is also connected with the inner side of the hook head body 1 through the tension spring 4, which is used to rotate the continuous pull rod 3 counterclockwise under the action of the tension spring 4, so that the front end cylinder 10 of the continuous pull rod 3 slides into the tiger mouth 7 of the continuous hook tongue 2 of the opposite car hook, and the continuous hook tongue 2 is continuously rotated counterclockwise by the continuous pull rod 3, until the first limiting shoulder 8 of the continuous pull rod 3 abuts against the limiting surface in the through hole of the guide convex cone 11, so that the two oppositely arranged car hooks are in an automatic continuous coupling and locking state;

[0031] The center of the continuous hook tongue 2 is also provided with a boss, the boss is provided with a second limiting shoulder 9 on the outer side wall facing the continuous pull rod 3, and one end of the continuous hook tongue 2 and the uncoupling device is connected with the hook head body 1, which is used to rotate the continuous hook tongue 2 clockwise by operating the uncoupling device, so that the second limiting shoulder 9 of the continuous hook tongue 2 contacts with the pull rod side 15 of the continuous pull rod 3, and the continuous hook tongue 2 continues to rotate the continuous pull rod 3 clockwise, until the front end cylinder 10 of the continuous pull rod 3 is separated from the tiger mouth 7 of the continuous hook tongue 2 of the opposite car hook, so that the two oppositely arranged car hooks enter an external force automatic uncoupling state;

[0032] Further, the inclination direction of the first limiting shoulder 8 is consistent with the inclination direction of the limiting surface; the first limiting shoulder 8 of the continuous pull rod 3 abuts against the limiting surface in the through hole of the guide convex cone 11, so that the two oppositely arranged car hooks are in an automatic continuous coupling and locking state;

[0033] Further, the inclination direction of the second limiting shoulder 9 is consistent with the inclination direction of the pull rod side 15 of the continuous pull rod 3, which is used to abut against the pull rod side 15 of the continuous pull rod 3, so that the two oppositely arranged car hooks enter an external force automatic uncoupling state,

[0034] Further, the hook tongue pin shaft is arranged at the center of the boss, the connecting hook tongue 2 is installed on the hook head body 1 through the hook tongue pin shaft 13, and the connecting hook tongue 2 is facilitated to rotate;

[0035] Further, the connecting hook tongue 2 and one end of the connecting pull rod 3 are installed on the hook head body 1 through the pull rod pin shaft 5, and the connecting hook tongue 2 and one end of the uncoupling device are installed on the hook head body 1 through the uncoupling pin shaft; wherein the connecting hook tongue 2 is provided with a pull rod pin shaft mounting hole, a hook tongue pin shaft mounting hole and an uncoupling device connecting hole; the connecting pull rod 3 is also provided with a pull rod pin shaft mounting hole, the uncoupling pin shaft is installed in the uncoupling device connecting hole, the pull rod pin shaft 5 is installed in the pull rod pin shaft mounting hole, and the hook tongue pin shaft is installed in the hook tongue pin shaft mounting hole;

[0036] Further, the tight coupling car coupler further comprises a sensor 12 installed on the connecting panel, and a controller connected with the sensor 12 for sensing the distance between the connecting panels of the opposite car couplers and feeding back the distance signal;

[0037] The connecting panel is a rectangular panel, and a concave taper is arranged at the other side of the connecting panel, so as to assist the car coupler to be accurately positioned during the connecting process and improve the success rate of the connecting process;

[0038] Further, the uncoupling device comprises an uncoupling connecting rod 16, an uncoupling rotating rod, an uncoupling handle 17 and an uncoupling rod torsional spring,

[0039] One end of the uncoupling connecting rod 16 is connected with the connecting hook tongue 2, the other end of the uncoupling connecting rod 16 is connected with one end of the uncoupling rotating rod through a pin shaft, the other end of the uncoupling rotating rod is connected with the uncoupling handle 17, and the uncoupling rod torsional spring is sleeved on the uncoupling rotating rod;

[0040] Working process: the connecting operation of the tight coupling car coupler, comprising the following steps:

[0041] Before the connecting, the connecting hook tongue 2 and the connecting pull rod 3 are in a connecting locking state under the action of the tensile spring 4, and the tiger mouth 7 of the connecting hook tongue 2 faces the rear of the car coupler;

[0042] During the marshalling operation, the outer side surface of the connecting pull rod 3 of the car head side car coupler first contacts the guide arc surface 6 of the connecting hook tongue 2 of the marshalled car car coupler, with the hook head body 1 approaching, the connecting pull rod 3 pushes the connecting hook tongue 2 of the opposite car coupler to rotate clockwise against the tensile spring 4, until the connecting panels of the two car couplers are attached;

[0043] The two coupler knuckles 2 are rotated clockwise to the maximum angle under the pushing of the opposite coupling drawbar 3, at this time, a gap appears between the front end cylinder 10 of the coupling drawbar 3 and the tiger mouth 7 of the opposite coupler knuckle, the coupling drawbar 3 is rotated counterclockwise under the action of the tension spring 4, so that the front end cylinder 10 slides into the tiger mouth 7 of the opposite coupler knuckle and forms a parallelogram structure;

[0044] At the same time, the coupling drawbar 3 drives the coupling knuckle 2 to continue counterclockwise rotation until the second limiting shoulder of the coupling drawbar 3 abuts against the limiting surface in the guide convex cone 11, and the two coupler knuckles are in a coupling locking state.

[0045] The sensor 12 senses the distance between the coupling panels of the opposite coupler knuckles and feeds back the distance signal, and feeds back the distance signal to the control end, when the distance meets the set range of the coupling state, the driver is prompted by the display or indicator light in the cab that the coupling is successful.

[0046] The uncoupling operation of the tight coupling coupler includes the following steps:

[0047] When uncoupling is needed, the driver operates the uncoupling device of a single coupler, and can perform corresponding operation according to the type (manual or electric) of the uncoupling device. If it is a manual uncoupling device, the operator needs to apply appropriate force to rotate the coupling knuckle 2 clockwise according to the operation procedure; if it is an electric uncoupling device, the driver operates the control switch in the cab to rotate the coupling knuckle 2 clockwise.

[0048] During the rotation of the coupling knuckle 2, due to the action of the parallelogram structure, the uncoupling handle 17 will push the coupling knuckle 2 of the opposite coupler knuckle to rotate together. The operator should pay attention to the rotation of the coupling knuckle 2 and the coupling drawbar 3 to ensure normal operation.

[0049] When the coupling knuckle 2 rotates to a certain angle, the second limiting shoulder 9 of the coupling knuckle 2 contacts the drawbar side surface 15 of the coupling drawbar 3, at this time, the uncoupling device is continuously operated to rotate the coupling knuckle counterclockwise, forcing the coupling drawbar 3 to rotate clockwise around the drawbar pin 5, until the front end cylinder 10 of the coupling drawbar 3 is separated from the tiger mouth of the opposite coupler knuckle, and the coupler enters the external force uncoupling state.

[0050] After confirming that the coupler has entered the external force uncoupling state, the driver drives the vehicle to move slowly to realize the uncoupling of the vehicle. During the movement, attention should be paid to the separation of the coupler to ensure the smooth completion of the uncoupling operation.

[0051] It should be noted that the present application close contact coupler includes a hook head body 1, a coupling tongue 2, a coupling pull rod 3 and a tension spring, the coupling tongue 2 is arranged in the hook head body 1, the coupling pull rod 3 and a uncoupling device are arranged on the coupling tongue 2, the coupling tongue 2 and the coupling pull rod 3 are installed on the hook head body 1 through a pull rod pin shaft 5 at one end, the coupling tongue 2 and the uncoupling device are installed on the hook head body 1 through an uncoupling pin shaft, the coupling tongue 2 is provided with a guide arc surface and a tiger mouth, the other end of the coupling pull rod 3 is provided with a front end cylinder and a first limiting shoulder 8, one side of the one end of the coupling pull rod 3 is provided with a pull rod side surface 15, the other side of the one end of the coupling pull rod 3 is provided with a tension spring hanging point for installing one end of the tension spring, the other end of the tension spring is installed on the inner side of the hook head body 1, the center of the coupling tongue 2 is further provided with a boss, the boss is provided with a second limiting shoulder 9 on the outer side wall facing the coupling pull rod 3, the mutual cooperation between the tension spring, the guide arc surface 6 and the tiger mouth 7 of the coupling tongue 2, the second limiting shoulder 9, the front end cylinder and the first limiting shoulder 8 of the coupling pull rod 3 and the uncoupling device realize automatic coupling locking and uncoupling of the coupler, and the structure is simple and reliable. The simple structure design reduces the failure rate of the coupler, reduces the maintenance cost and the maintenance workload, and improves the service life of the coupler.

[0052] It is worth noting that the present application close contact coupler eliminates the waiting state of the traditional coupler, through the setting of the hook head body, the coupling tongue and the coupling pull rod, the waiting state is eliminated during the coupling of the two couplers, only the coupling tongue is rotated to drive the coupling pull rod to act, so that the two couplers realize automatic coupling locking state or external force automatic uncoupling state, manual operation is not required for adjusting the coupler state before train marshalling and coupling, direct coupling marshalling operation is carried out, the operation process is greatly simplified, the train marshalling efficiency is improved, the operation time and the labor cost are reduced, the sensor is arranged to sense the distance between the coupling panels of the opposite couplers and feed back the distance signal, and the coupling state is fed back to the driver, the driver can know the coupling state of the coupler in real time, the safety hidden danger caused by the uncoupling is avoided, and the safety and reliability of train operation are improved.

[0053] The above only describes the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A close-fitting coupler, characterized in that, Includes a hook head body, the hook head body is provided with a connecting hook tongue inside, the connecting hook tongue is provided with a guide arc surface and a tiger's mouth, and the connecting hook tongue is provided with a connecting pull rod and a hook release device; One end of the hook body is provided with a hook fixing seat, and the other end of the hook body is provided with a connecting panel. A guide cone is provided on one side of the connecting panel. A through hole is opened at the top of the guide cone, and a limiting surface that is inclined from the cone top to the side away from the connecting rod is provided on the inner side of the guide cone. One end of the connecting rod is provided with a rod side, and the other end of the connecting rod is provided with a front cylinder and a first limiting shoulder; the connecting hook tongue and one end of the connecting rod are connected to the hook head body, and one end of the connecting rod is also connected to the inner side of the hook head body through a tension spring, so that by rotating the connecting rod counterclockwise under the action of the tension spring, the front cylinder of the connecting rod slides into the tiger's mouth of the connecting hook tongue of the opposite coupler, and at the same time, the connecting rod drives the connecting hook tongue to continue to rotate counterclockwise until the first limiting shoulder of the connecting rod abuts against the limiting surface inside the guide cone through the through hole, so that the two opposite couplers are in an automatic coupling and locking state; A boss is provided at the center of the hook tongue. A second limiting shoulder is provided on the outer wall of the hook rod facing the boss. One end of the hook tongue and the unhooking device is connected to the hook head body. When the unhooking device is operated to rotate clockwise so that the second limiting shoulder of the hook tongue contacts the side of the hook rod, the hook tongue continues to rotate clockwise to drive the hook rod to rotate until the front end cylinder of the hook rod disengages from the hook tongue of the opposite coupler, so that the two opposite couplers enter the automatic unhooking state by external force.

2. The close-fitting coupler according to claim 1, characterized in that, The tilting direction of the first limiting shoulder is consistent with the tilting direction of the limiting surface.

3. The close-fitting coupler according to claim 1, characterized in that, The tilting direction of the second limiting shoulder is consistent with the tilting direction of the side of the connecting rod.

4. The close-fitting coupler according to claim 1, characterized in that, A hook tongue pin is provided at the center of the boss, and the connecting hook tongue is installed on the hook head body through the hook tongue pin.

5. The close-fitting coupler according to claim 1, characterized in that, The hook tongue and one end of the connecting rod are mounted on the hook head body via a rod pin, and the hook tongue and one end of the unhooking device are mounted on the hook head body via an unhooking pin.

6. The close-fitting coupler according to claim 1, characterized in that, The close-fitting coupler also includes a sensor, which is mounted on the connection panel. The controller is connected to the sensor and is used to sense the distance between the coupling panels of two opposing couplers and to feed back the distance signal.

7. The close-fitting coupler according to claim 1, characterized in that, The unhooking device includes an unhooking connecting rod, an unhooking rotating rod, an unhooking handle, and an unhooking rod torsion spring. One end of the unhooking connecting rod is connected to the connecting hook tongue, and the other end of the unhooking connecting rod is connected to one end of the unhooking rotating rod via a pin. The other end of the unhooking rotating rod is connected to the unhooking handle, and an unhooking rod torsion spring is sleeved on the unhooking rotating rod.

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