CN209739070U - coal mine car connecting device - Google Patents

Abstract

The utility model discloses a colliery mine car connecting device, include: the hook device and the pushing and hanging device are respectively connected with the adjacent coal mine car; the hooking device comprises: the hook is hinged to the first end portion of the mine car, and a torsion spring is arranged at the hinged position of the hook and the mine car. The push-hang device comprises: and the pushing and hanging connecting rod is fixedly connected with the second end part of the mine car, and the outer wall of the pushing and hanging connecting rod is fixedly connected with a pushing arm. Further comprising: the two hauling ropes are respectively wound around the expansion hinge buckle and fixedly connected with one sides of the upper hook and the lower hook far away from the hanging groove. The coal mine car connecting device can realize direct relative moving back and approach between the mine cars, and can realize automatic connection between the mine cars. When the mine car needs to be unhooked, the mine car is pulled through the traction effect of the traction rope, and then the unhooking of the mine car can be achieved. The operation process is simple, the operation process of constructors between mine cars is avoided, and the construction safety of the constructors is ensured.

Description

coal mine car connecting device

Technical Field

The utility model relates to a colliery is transportation mine car connecting device structural design technical field in the pit especially relates to a colliery mine car connecting device.

Background

With the development of science and technology, the requirements on coal mine construction management are higher and higher. From the requirement of the death rate of coal per ten thousand tons to the requirement of zero accident in the prior safe construction, the attention to the safe red line in the coal mine construction process is further required.

in the existing coal mine construction process, the coal mine car plays a great role in order to facilitate the convenient transportation of underground coal mine materials, mining waste materials and coal. Due to the large size and weight of the mine car, the mine car is usually towed by a proprietary device to achieve movement of the mine car downhole.

In the prior art, the mine car generally needs to be connected and unhooked during the use process so as to meet various use requirements. In the use process of the existing mine car, a constructor usually enters the connection junction of the mine car to connect or unhook the connecting parts of the mine car, so that the use requirement is met. However, because the volume and the weight of the mine car are large, the mine car is easy to crush or clamp during the middle construction operation, and the safety of constructors is affected.

Therefore, the coal mine car connecting device in the prior art has the defects of unreasonable structural design, easy injury of constructors, complex operation process and inconvenience in use.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses a main aim at provides an operation process is simple, has avoided constructor's operation process between the mine car, has guaranteed constructor's construction safety's colliery mine car connecting device.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

A coal mine car coupling device comprising: the hook device and the pushing and hanging device are respectively connected with the adjacent coal mine car; the hooking device comprises: the hook is hinged to the first end part of the mine car, and a torsion spring is arranged at the hinged position of the hook and the mine car, so that the hook rotates around the hinged position and is in hanging connection with the pushing and hanging device of the adjacent mine car;

The push-hang device comprises: the pushing and hanging connecting rod is fixedly connected with the second end part of the mine car, and the outer wall of the pushing and hanging connecting rod is fixedly connected with a pushing arm; when the adjacent mine cars are close to each other, the push arm pushes the hook to rotate in the direction opposite to the hanging direction, and the push-hanging connecting rod enters the hanging groove of the hook.

In a preferred embodiment, the upside or the downside edge fixedly connected with of couple are pushed the arch, push away the fender of arm and be the arcuation of buckling, make it gets into to push away to hang the connecting rod before the grooving, push away the arm and push away the fender the quilt is pushed away the arch, the couple is rotatory to the direction that deviates from to hang and hold, push away to hang after the connecting rod gets into the grooving, the couple is rotatory to the direction of hanging and holding by the torsion spring drive.

In a preferred embodiment, the hook comprises: the upper hook and the lower hook are arranged adjacently up and down, and one side surfaces of the upper hook and the lower hook, which are provided with the hanging grooves, are arranged oppositely; the upper side of the upper hook is fixedly connected with the pushed bulge, and the lower side of the lower hook is fixedly connected with the pushed bulge; the push arm includes: the upper pushing arm and the lower pushing arm are respectively and fixedly connected to the outer wall of the pushing and hanging connecting rod, the upper pushing arm is suitable for being matched with and pushed by the pushing bulge on the upper side of the upper hook, and the lower pushing arm is suitable for being matched and pushed by the pushing bulge on the lower side of the lower hook.

In a preferred embodiment, the method further comprises: the traction rope is connected with an expansion hinge buckle, an upper pulling hinge buckle and a pulling rod which are connected to the first end part of the mine car; the two expansion hinge buckles are respectively and fixedly connected to the two sides of the hook device, the pull-up hinge buckle is fixedly connected to the upper side of the hook device, and the middle part of the pull rod is hinged to one side above the pull-up hinge buckle; one end of the pulling rod, which is close to the upper pulling hinge buckle, is fixedly connected with the pulling ropes, and the two pulling ropes respectively bypass the expansion hinge buckle and are fixedly connected with one sides of the upper hook and the lower hook, which are far away from the hanging groove.

In a preferred embodiment, the hooking means further comprises: the two hook connecting pieces are arranged in parallel, the two hook connecting pieces are fixedly connected to the end part of the mine car, a hook connecting rod is connected between the two hook connecting pieces, and the upper hook and the lower hook are respectively hinged to the outer wall of the hook connecting rod; the torsion spring is arranged on the outer wall of the hook connecting rod, and two torsion connecting arms of the torsion spring are respectively connected with the upper hook and the lower hook.

in a preferred embodiment, the expansion hinge buckles are fixedly connected to both end portions of the hanger connecting member at an upper side of the hanger device.

In a preferred embodiment, the method further comprises: the pushing and hanging connecting pieces are arranged in parallel, the pushing and hanging connecting pieces are fixedly connected to the second end portion of the mine car, and the pushing and hanging connecting pieces are connected with one another through the pushing and hanging connecting rods.

In a preferred embodiment, the pull-up hinge buckle is located on the midperpendicular of the hitch apparatus at a fixed attachment location at the first end of the mine car.

In a preferred embodiment, the pushed protrusion includes: a rotating shaft and a rotating sleeve; the rotating shaft is fixedly connected with the surface of the hook, the rotating sleeve is hinged to the rotating shaft, and the outer wall of the rotating sleeve is in contact with the pushing arm to push and press.

in a preferred embodiment, the hauling cable is a steel cable.

In a preferred embodiment, the pulling rod is hinged to the handle at an end remote from the pulling rope.

In a preferred embodiment, the distance between one end of the pulling rod connected with the pulling rope and the hinge is 1/4-1/2 of the distance between the hinge and one end of the pulling rod connected with the handle.

In a preferred embodiment, the distance between the end of the pulling rod connected with the pulling rope and the hinge is 1/3 the distance between the hinge and the end of the pulling rod connected with the handle.

the utility model discloses a colliery mine car connecting device has following beneficial effect:

this colliery mine car connecting device includes: the hook device and the pushing and hanging device are respectively connected with the adjacent coal mine car; the hooking device comprises: the hook is hinged to the first end portion of the mine car, and a torsion spring is arranged at the hinged position of the hook and the mine car. The push-hang device comprises: and the pushing and hanging connecting rod is fixedly connected with the second end part of the mine car, and the outer wall of the pushing and hanging connecting rod is fixedly connected with a pushing arm. Further comprising: the two hauling ropes are respectively wound around the expansion hinge buckle and fixedly connected with one sides of the upper hook and the lower hook far away from the hanging groove. The mine car hook solves the problems that in the prior art, in the process of connecting and unhooking the mine car under a coal mine, constructors need to perform operation processing between the mine cars, and the connection and the unhooking of the mine car are realized. However, the underground environment of the coal mine is severe, the light is poor, and the operation of constructors between mine cars is easy to cause accidents, even the life safety of the constructors is influenced. The coal mine car connecting device can realize direct relative moving back and approach between the mine cars, and can realize automatic connection between the mine cars. When the mine car needs to be unhooked, the mine car is pulled through the traction effect of the traction rope, and then the unhooking of the mine car can be achieved. The operation process is simple, the operation process of constructors between mine cars is avoided, and the construction safety of the constructors is ensured.

Drawings

fig. 1 is a front view of a coal mine money car connection device according to an embodiment of the present disclosure in a ready-to-connect state;

FIG. 2 is a front view of a coal mine cash truck connection device in a connected state according to one embodiment of the present disclosure;

Fig. 3 is a top view of a coal mine cash truck connection apparatus in a ready-to-connect state with a push-hang connection rod and a hook connection rod removed according to an embodiment of the present disclosure;

FIG. 4 is a top view of the coal mine cash car connecting device in a connected state with the push-hang connecting rod and the hook connecting rod removed according to one embodiment of the present disclosure;

FIG. 5 is a front view of the first end face of the mining vehicle in a connected state of the coal mine vehicle attachment apparatus according to one embodiment of the disclosure.

[ description of main reference symbols ]

01. A mine car 02, a hook device 03 and a pushing and hanging device;

1. The hook comprises a hook 11, an upper hook 12, a lower hook 101 and a hanging groove;

3. A push arm 31, an upper push arm 32, a lower push arm 301, a push stop surface,

4. A pushed bulge 5, a traction rope 6, an expansion hinge buckle 7 and an upward pulling hinge buckle;

8. pulling a rod 81 and a handle;

9. A hook connecting rod 10, a hook connecting piece 20, a push-hang connecting piece 21 and a push-hang connecting rod.

Detailed Description

The following describes the coal mine money car connecting device in further detail with reference to the accompanying drawings and the embodiments of the present invention.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1, 2, 3, 4 and 5, the coal mine car connection apparatus includes: the hook device 02 and the pushing and hanging device 03 are respectively connected to the adjacent coal mine car 01; namely: the front end (second end) of the mine car 01 is connected with the hook device 02, and the rear end (first end) of the mine car 01 is connected with the pushing and hanging device 03, so that the connection between the adjacent mine cars is realized through the connection between the hook device 02 and the pushing and hanging device 03, and the series connection between the mine cars is realized.

In order to realize the convenient connection between couple device 02 and the device 03 of hanging that pushes away, this couple device 02 includes: the device comprises a hook 1 hinged to a first end portion of a mine car 01, wherein a torsion spring is arranged at the hinged position of the hook 1 and the mine car, so that the hook 1 rotates around the hinged position and is connected with a pushing and hanging device 03 of an adjacent mine car 01 in a hanging mode (the hanging connection refers to that when the hook 1 is connected with a part to be connected, the part to be connected is located inside a hook portion (the hook position of the hook 1) of the hook 1, and the hook 1 can provide large pulling force and proper pushing force for the part to be connected).

In order to further guarantee the safety of constructors in the pit, especially the colliery is poor in the environment in the pit, and light is darker, and there is the great defect of potential safety hazard in constructor between the mine car. This push away hanging device 03 includes: a push-hanging connecting rod 21 is fixedly connected with the second end part of the mine car 01, and a push arm 3 is fixedly connected with the outer wall of the push-hanging connecting rod 21. When the adjacent mine cars 01 approach, the push arm 3 pushes the gear hook 1 to rotate in the direction opposite to the hanging direction, and the push-hanging connecting rod 21 enters the hanging groove 101 of the hook 1. Especially, in the process of connecting the mine cars, the distance between the mine cars is in the process of being large or small, and if constructors between the mine cars do not leave the mine cars in time, the constructors are easily clamped by the mine cars, and even the life is hurt. Through the combined action of the pushing and hanging connecting rod 21, the pushing arm 3 and the hook 1, the adjacent mine cars are pushed in opposite directions in the connection process of the mine cars, and the automatic connection of the adjacent mine cars is realized. The labor intensity of the user is reduced, and the life safety of the constructors can be guaranteed.

Furthermore, in order to smoothly realize the action of the push arm 3 on the hook 1, the smooth proceeding of the connection is ensured. A pushed protrusion 4 is fixedly connected to the upper or lower edge of the hook 1, and a pushing surface 301 of the pushing arm 3 is in an arc shape. Before the pushing and hanging connecting rod 21 enters the hanging groove 101, the pushing surface 301 of the pushing arm 3 pushes and blocks the pushed protrusion 4, the hook 1 rotates in the direction away from the hanging direction, interference between the pushing and hanging connecting rod 21 and the hook 1 is avoided, and the pushing and hanging connecting rod 21 can smoothly enter the hanging groove 101; after pushing away and hanging connecting rod 21 and getting into hanging groove 101, owing to push away the fender face 301 of arm 3 and be the arcuation of buckling, and this moment, push away fender face 301 and be pushed away the contact surface between the arch 4 and be in to pushing away the crooked curved surface of connecting rod 21 direction to guarantee that torsion spring promotes couple 1 and hold the direction rotation, promptly: the hook 1 is driven by the torsion spring to rotate in the hanging direction. (the hanging direction of the hook 1 refers to the rotating direction of the hook part (hook) of the hook 1 in the hanging process of the part to be connected)

Preferably, the middle part of the push arm 3 is provided with a cavity structure, so that the weight of the push arm 3 is reduced on the premise of meeting the strength requirement.

In order to ensure the connection strength between adjacent mine cars, particularly when the mine cars are loaded with goods and move under the traction and pulling of the front car, the connecting device can provide enough connection strength. This couple 1 includes: go up couple 11 and couple 12 down, go up couple 11 and couple 12 adjacent setting from top to bottom down, go up couple 11 and couple 12 down and set up the relative setting of a side of seting up hanging groove 101, avoid single couple to be not enough in the confining force that two directions provided, lead to the risk that the mine car unhook.

Of course, in order to push the upper hook 11 and the lower hook 12 and realize the opposite movement between the mine cars, the automatic connection can be realized, the upper side of the upper hook 11 is fixedly connected with the push bulge 4, and the lower side of the lower hook 12 is fixedly connected with the push bulge 4. And the push arm 3 includes: the upper pushing arm 31 and the lower pushing arm 32 are respectively and fixedly connected to the outer wall of the pushing and hanging connecting rod 21, the upper pushing arm 31 is suitable for being matched and pushed with the pushed protrusion 4 on the upper side of the upper hook 11, and the lower pushing arm 32 is suitable for being matched and pushed with the pushed protrusion 4 on the lower side of the lower hook 12. In a specific connection process, the push-up arm 31 pushes the pushed protrusion 4 on the upper side of the upper hook 11, so that the upper hook 11 rotates in a direction away from the hanging direction; meanwhile, the pushing arm 32 pushes the pushed protrusion 4 on the lower side of the lower hook 12, and the lower hook 12 is also rotated in the direction away from the hanging direction.

Furthermore, the mine car not only needs to be connected, but also needs to be unhooked for use in the using process. In order to realize that the user can unhook the mine car without entering the space between the mine cars. The connecting device further comprises: a hauling rope 5, an expansion hinge joint buckle 6, an upper pull hinge joint buckle 7 and a pulling rod 8 which are connected with the first end part of the mine car 01; the two expansion hinge buckles 6 are respectively and fixedly connected to the two sides of the hook device 02, the pull-up hinge buckle 7 is fixedly connected to the upper side of the hook device 02, and the middle part of the pull rod 8 is hinged to one side above the pull-up hinge buckle 7; one end of the pulling rod 8 close to the upper pulling hinge buckle 7 is fixedly connected with the pulling ropes 5, and the two pulling ropes 5 are respectively and fixedly connected with one sides of the upper hook 11 and the lower hook 12 far away from the hanging groove 101 by bypassing the expansion hinge buckle 6. Preferably, a connecting buckle convenient for the connecting of the traction rope 5 is fixedly connected to one side of the upper hook 11 and the lower hook far away from the hanging groove 101. Further preferably, the hauling cable is a steel cable. Through the pulling one end of pulling pole 8 away from haulage rope 5, the pulling pole 8 rotates around the pin joint, and the haulage rope 5 who detains 7 department processes at last pulling hinge slides upwards, and further pulling haulage rope 5 is rotatory to last couple 11 and couple 12 to both sides direction down, and then realized pushing away hanging device 03 treat that the connecting piece gets into on couple 11 and couple 12 hang groove 101 down, realize the effect of automatic connection.

In order to further facilitate the connection, the structure of the whole connecting device is more reasonable. The hooking device 02 further comprises: two couple connecting pieces 10 of mutual parallel arrangement, two couple connecting pieces 10 fixed connection are connected at the tip of mine car 01, are connected with couple connecting rod 9 between two couple connecting pieces 10, go up couple 11 and couple 12 down and articulate respectively at the outer wall of couple connecting rod 9. The torsion spring is arranged on the outer wall of the hook connecting rod 9, and two torsion connecting arms of the torsion spring are respectively connected with the upper hook 11 and the lower hook 12.

In order to further facilitate the driving rotation of the upper and lower hooks 11 and 12, the expansion hinge buckles 6 are fixedly coupled to both end portions of the hook coupling member 10 at the upper side of the hooking means 02. Preferably, the vertical plane through two expansion hinge buckles 6 is close to the connecting point of the hook and the haulage rope 5, the component force of the haulage rope 5 in the traction process in parallel and in the rotation direction is increased, and then the traction force of the haulage rope 5 is reduced, so that the connecting device is more reasonable in structure, the traction force of a constructor to the haulage rope when the tramcar is separated is further reduced, the damage to the haulage rope is also reduced to a certain extent, and the service life of the connecting device is prolonged. The preferred expansion hinge buckles 6 are attached to the outer side walls of the upper and lower hooks 11 and 12, respectively, away from the hanging channel 101.

Similarly, in order to make the structural design of the pushing and hanging device 03 more reasonable, the connecting device further comprises: two push-hang connectors 20 arranged in parallel are fixedly connected to the second end of the mine car 01, and a push-hang connecting rod 21 is connected between the two push-hang connectors 20. The pushing and hanging connecting rod 21 is hung in the hanging groove of the hook 1 in the connecting process, so that the connection between the hook device 02 and the pushing and hanging device 03 is realized.

In order to achieve the same traction distance for the upper hook 11 and the lower hook 12 during the traction of the traction rope 5, the upper pull hinge buckle 7 is positioned on the middle vertical line of the hook device 02 at the fixed connection position of the first end part of the mine car 01.

In order to further reduce the friction force between the pushed protrusion 4 and the pushing arm 3, the pushed protrusion 4 includes: a rotating shaft and a rotating sleeve. The rotating shaft is fixedly connected with the surface of the hook 1, the rotating sleeve is hinged with the rotating shaft, and the outer wall of the rotating sleeve is in contact with the pushing arm 3 to push and press. Therefore, the sliding friction between the left push bulges 4 of the push arm 3 is changed into rolling friction, the friction is reduced, and the connection between the mine cars is more stable.

in order to facilitate the pulling of the pulling rod 8 by the constructor, a handle 81 which is convenient for the constructor to hold is hinged to one end part of the pulling rod 8 far away from the traction rope 5.

The lever principle is utilized, the pulling force is reduced, and the pulling effect on the traction rope 5 can be realized. The distance between one end of the pulling rod 8 connected with the pulling rope 5 and the hinged position is 1/4-1/2 of the distance between the hinged position and one end of the pulling rod 8 connected with the handle 81.

Preferably, the distance between the end of the pulling rod 8 connected with the pulling rope 5 and the hinge is 1/3 the distance between the hinge and the end of the pulling rod 8 connected with the handle 81.

the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (10)

1. a coal mine car connecting device, comprising: a hook device (02) and a pushing and hanging device (03) which are respectively connected with the adjacent coal mine car (01);

The hooking device (02) comprises: the hook (1) is hinged to the first end part of the mine car (01), and a torsion spring is arranged at the hinged part of the hook (1) and the mine car, so that the hook (1) rotates around the hinged part and is connected with a pushing and hanging device (03) of the adjacent mine car (01) in a hanging manner;

The push-hang device (03) comprises: a push-hang connecting rod (21) fixedly connected with the second end part of the mine car (01), and a push arm (3) is fixedly connected with the outer wall of the push-hang connecting rod (21); when the adjacent mine cars (01) approach, the push arm (3) pushes and blocks the hook (1) to rotate in the direction opposite to the hanging direction, and the push-hanging connecting rod (21) enters a hanging groove (101) of the hook (1);

a pushed bulge (4) is fixedly connected to the edge of the upper side or the lower side of the hook (1), a pushing surface (301) of the pushing arm (3) is in a bent arc shape, so that the pushing and hanging connecting rod (21) enters the hanging groove (101), the pushing arm (3) pushes the pushed bulge (4), the hook (1) rotates in a direction away from the hanging direction, and after the pushing and hanging connecting rod (21) enters the hanging groove (101), the hook (1) is driven by a torsion spring to rotate in the hanging direction;

The hook (1) comprises: the hook comprises an upper hook (11) and a lower hook (12), wherein the upper hook (11) and the lower hook (12) are arranged vertically and adjacently, and one side surfaces of the upper hook (11) and the lower hook (12) provided with a hanging groove (101) are arranged oppositely; the upper side of the upper hook (11) is fixedly connected with the pushed protrusion (4), and the lower side of the lower hook (12) is fixedly connected with the pushed protrusion (4); the push arm (3) comprises: the pushing device comprises an upper pushing arm (31) and a lower pushing arm (32), wherein the upper pushing arm (31) and the lower pushing arm (32) are respectively and fixedly connected to the outer wall of the pushing and hanging connecting rod (21), the upper pushing arm (31) is suitable for being pushed by a pushed bulge (4) on the upper side of an upper hook (11) in a matched mode, and the lower pushing arm (32) is suitable for being pushed by a pushed bulge (4) on the lower side of a lower hook (12) in a matched mode;

Further comprising: a hauling rope (5), an expansion hinge joint buckle (6), an upper pulling hinge joint buckle (7) and a pulling rod (8) which are connected with the first end part of the mine car (01); the two expansion hinge buckles (6) are respectively and fixedly connected to the two sides of the hook device (02), the pull-up hinge buckle (7) is fixedly connected to the upper side of the hook device (02), and the middle part of the pull rod (8) is hinged to one side above the pull-up hinge buckle (7); one end of the pulling rod (8) close to the upper pulling hinged buckle (7) is fixedly connected with a pulling rope (5), and the pulling rod (8) is connected with one side of the upper hook (11) and the lower hook (12) far away from the hanging groove (101) through the pulling rope (5) in a bypassing manner.

2. A coal mine car connection unit as defined in claim 1, wherein the hooking means (02) further comprises: the two hook connecting pieces (10) are arranged in parallel, the two hook connecting pieces (10) are fixedly connected to the end part of the mine car (01), a hook connecting rod (9) is connected between the two hook connecting pieces (10), and the upper hook (11) and the lower hook (12) are respectively hinged to the outer wall of the hook connecting rod (9); the torsion spring is arranged on the outer wall of the hook connecting rod (9), and two torsion connecting arms of the torsion spring are respectively connected with the upper hook (11) and the lower hook (12).

3. A coal mine car connection unit according to claim 2, wherein the expansion hinge joint buckles (6) are fixedly attached to the ends of the hitch coupler (10) on the upper side of the hitch unit (02).

4. The coal mine car connection apparatus of claim 1, further comprising: two push-hang connecting pieces (20) which are arranged in parallel are arranged, the two push-hang connecting pieces (20) are fixedly connected to the second end part of the mine car (01), and the two push-hang connecting pieces (20) are connected with each other to form a push-hang connecting rod (21).

5. A coal mine car connection unit according to claim 1, characterised in that the fixed attachment of the pull-up hinge joint stud (7) to the first end of the mine car (01) is on the mid-normal of the hook means (02).

6. a coal mine car connection apparatus as claimed in claim 1, wherein the pushed projection (4) comprises: a rotating shaft and a rotating sleeve; the rotating shaft is fixedly connected with the surface of the hook (1), the rotating sleeve is hinged to the rotating shaft, and the outer wall of the rotating sleeve is in contact with the pushing arm (3) to push and press.

7. A coal mine car connection according to claim 1, wherein the haulage rope (5) is a wire rope.

8. A coal mine car connection according to claim 1, wherein the pull rod (8) is hinged to a handle (81) at an end remote from the haulage rope (5).

9. a coal mine car connection device as claimed in claim 8, wherein the distance between the end of the pulling rod (8) connected to the haulage rope (5) and the hinged point is 1/4-1/2 of the distance between the hinged point and the end of the pulling rod (8) connected to the handle (81).

10. A coal mine car connection according to claim 9, wherein the distance between the end of the pulling rod (8) connected to the pull line (5) and the hinge is 1/3 from the end of the hinge connected to the handle (81) of the pulling rod (8).