CN212098304U - Hitch device and tractor - Google Patents

Abstract

The application discloses a hitching device and a towing vehicle, the hitching device is used for the towing vehicle and comprises a base, a lifting mechanism and a hook, wherein the base is used for being installed at the tail part of the towing vehicle; the lifting mechanism is arranged on the base; the hook is connected with the lifting mechanism so that the lifting mechanism drives the hook to lift. The hooking device of the embodiment of the application is installed at the tail part of the tractor through the base, the hook is controlled to lift through the lifting mechanism, when the tractor backs a car to the hooking arm of the hooking device to be treated, the hook can be controlled to descend through the lifting mechanism, the hook is enabled to hook the hooking arm of the hooking device to be treated, then the hook is controlled to ascend through the lifting mechanism, the hooking arm of the hooking device to be treated is lifted to the preset height, and the hooking part at the tail part of the tractor and the hooking arm of the hooking device to be treated are enabled to be hooked. It need not on-spot auxiliary personnel and articulates, consequently, has reduced freight's cost of labor.

Description

Hitch device and tractor

Technical Field

The application relates to the technical field of logistics, in particular to a hanging device and a tractor.

Background

In current air luggage cargo transportation, generally place the goods earlier on trailer, whole board wait for hooking device, then through waiting to articulate the tail portion of hooking device and tractor, pull the destination address by the tractor.

In the process of hooking the tail part of the tractor and the device to be hooked, the tractor generally needs to be backed to the hooking arm of the device to be hooked, and then the hooking arm of the device to be hooked is hooked with the tractor through field auxiliary personnel. Because the hitching mode needs field auxiliary personnel, the labor cost of cargo transportation is increased.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a hooking device and a tractor, aims at improving the structure of the hooking device, is hooked by the hooking device auxiliary tractor and the to-be-hooked hooking device, does not need on-site auxiliary personnel to hook, and reduces the labor cost of cargo transportation.

The embodiment of the application provides a hooking device, hooking device is used for the tractor, hooking device includes:

the base is used for being installed at the tail part of the tractor;

the lifting mechanism is arranged on the base;

and the hook is connected with the lifting mechanism so that the lifting mechanism drives the hook to lift.

In some embodiments of the present application, the lift mechanism comprises:

a strut connected with the base;

the suspension arm assembly is connected with the support column in a rotating mode along the vertical direction and is connected with the hook;

and the first driving assembly is connected with the suspension arm so as to drive the suspension arm to rotate up and down.

In some embodiments of the present application, the strut is pivotally connected to the base, and the rotational axis of the strut is at an angle to the rotational axis of the boom assembly; the hanging device further comprises a second driving assembly, and the second driving assembly is connected with the support column to drive the support column to rotate.

In some embodiments of the present application, the outer wall of the pillar is convexly provided with a first hinged seat, the boom assembly is provided with a second hinged seat, the first driving assembly comprises a first telescopic driving mechanism, one end of the first telescopic driving mechanism is hinged to the first hinged seat, and the other end of the first telescopic driving mechanism is hinged to the second hinged seat.

In some embodiments of the present application, a third hinge seat is convexly provided on an outer wall of the pillar, the second driving assembly includes a second telescopic driving mechanism, one end of the second telescopic driving mechanism is hinged to the third hinge seat, and the other end of the second telescopic driving mechanism is hinged to the base.

In some embodiments of the present application, the boom assembly comprises a first boom and a second boom which are rotatably connected, one end of the first boom far away from the second boom is rotatably connected with the support column along the up-down direction, the first driving assembly is connected with the first boom to drive the first boom to rotate, the rotation axis of the second boom is consistent with the rotation axis of the first boom, and the hook is connected with the second boom.

In some embodiments of the present application, the second boom comprises a first sub-boom rotationally connected with the first boom, and a second sub-boom telescopically connected with the first sub-boom, the hook being connected with the second sub-boom.

In some embodiments of the present application, the boom assembly further comprises a buffer that is raised below the first boom.

The embodiment of the application also provides a tractor, which comprises the hitching device.

In some embodiments of the present application, the tail of the towing vehicle is provided with a hitching part for hitching with a device to be hitched.

The embodiment of the application provides a hooking device is including being used for installing the base of the afterbody of tractor, install the elevating system on the base to and the couple of being connected with elevating system, when the tractor backs a car to the hitching arm department of treating hooking device, can control the couple through elevating system and descend, make the couple catch on the hitching arm of treating hooking device, then rise through elevating system control couple, to treat that hooking device's hitching arm lifting is to predetermineeing the height, make the hitching part of tractor afterbody and the hitching arm of treating hooking device articulate. It need not on-spot auxiliary personnel and articulates, consequently, has reduced freight's cost of labor. Meanwhile, the risk that the tractor collides with field auxiliary personnel in the backing process can be avoided.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an embodiment of a towing vehicle and a device to be hitched according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of an embodiment of a hitch device according to an embodiment of the present disclosure.

A tractor 100; a hanging part 110; a hanging plate 111; a hitch pin 112; a drive rod assembly 113; a fixed base 114; a hitch 120; a base 121; a flange 1211; a mounting seat 1212; a fastener 122; a fourth hinge base 123; a lifting mechanism 124; a support column 125; a first hinge base 1251; a third hinge base 1252; a first hinge shaft 1253; a first hinge 1254; a boom assembly 126; a second hinge seat 1261; the first boom 127; a second articulation axis 1271; a buffer 128; a support 1281; an elastic member 1282; the second boom 129; a first sub-boom 1291; a second sub-boom 1292; a positioning member 1293; a second hinge 1294; a second positioning hole 1295; a first drive assembly 130; a hook 131; a second drive assembly 132; a hinge 133; a device to be hitched 200; a pallet 210; a roller 211; a hanging arm 212; a hooking tab 213; a first hooking hole 214.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides a hitching device and a tractor. The following are detailed below.

Firstly, the embodiment of the application provides a hitching device for a tractor, which comprises a base, a lifting mechanism and a hook, wherein the base is used for being installed at the tail part of the tractor; the lifting mechanism is arranged on the base; the hook is connected with the lifting mechanism so that the lifting mechanism drives the hook to lift.

Fig. 1 is a schematic structural diagram of an embodiment of a towing vehicle and a device to be hitched according to an embodiment of the present disclosure. As shown in fig. 1, the trailer 100 has a hitch 110 at the rear thereof, the device 200 to be hitched has a hitch arm 212, and the hitch 110 at the rear of the trailer 100 is used for hitching with the hitch arm 212 of the device 200 to be hitched, so that the trailer 100 can drag the device 200 to be hitched to move. Here, the device to be hitched 200 refers to a moving device that is connected to the towing vehicle 100 and moves together by being dragged by the towing vehicle 100.

In the process of hooking the hooking part 110 at the tail part of the tractor 100 and the hooking arm 212 of the device to be hooked 200, the tractor 100 is firstly backed up to approach the device to be hooked 200, then the hooking arm 212 of the device to be hooked 200 is lifted up to make the height of the hooking arm 212 substantially consistent with that of the hooking part 110, then the tractor 100 is continuously backed up, and the hooking part 110 of the tractor 100 and the hooking arm 212 of the device to be hooked 200 are hooked together.

Fig. 2 is a schematic structural diagram of an embodiment of a hitch device according to an embodiment of the present disclosure. As shown in fig. 2, the hitch 120 includes a base 121, the base 121 is attached to the rear portion of the tractor 100, an elevating mechanism 124 which is movable up and down is attached to the base 121, a hook 131 is connected to the elevating mechanism 124, and the hook 131 can be driven to ascend and descend by the elevating mechanism 124.

After the tractor 100 backs up to the position close to the hitching arm 212 of the device 200 to be hitched, the lifting mechanism 124 controls the hook 131 to descend, so that the hook 131 hooks the hitching arm 212 of the device 200 to be hitched, then the lifting mechanism 124 controls the hook 131 to ascend, so as to lift the hitching arm 212 of the device 200 to be hitched to a preset height, and finally, the tractor 100 continues to back up, so that the hitching part 110 of the tractor 100 is close to the hitching arm 212 of the device 200 to be hitched and connected with each other. It need not on-spot auxiliary personnel and articulates, consequently, has reduced freight's cost of labor. Meanwhile, the risk that the field auxiliary personnel are hit by the tractor 100 in the process of backing can be avoided.

In some embodiments, base 121 is flanged to the rear of towing vehicle 100 to provide a more stable connection of base 121 to towing vehicle 100.

Specifically, as shown in fig. 1 and fig. 2, the base 121 includes a flange 1211 and a mounting base 1212 connected to a side surface of the flange 1211, the mounting base 1212 is used for mounting the lifting mechanism 124, a plurality of first fixing holes (not shown) are formed on the flange 1211 around the mounting base 1212, a fixing base 114 for fixing the flange 1211 is provided at a tail portion of the tractor 100, a second fixing hole (not shown) is formed at a position of the fixing base 114 corresponding to each first fixing hole, a side of the flange 1211 facing away from the mounting base 1212 is supported on an upper surface of the fixing base 114, the first fixing holes on the flange 1211 correspond to the second fixing holes on the fixing base 114, and then the fastening members 122 are inserted into the first fixing holes and the second fixing holes, so that the flange 1211 and the fixing base 114 can be fixed together.

Wherein the fasteners 122 include bolts, screws, etc., without limitation.

In some embodiments, as shown in FIG. 2, lift mechanism 124 includes a support column 125, a boom assembly 126, and a first drive assembly 130, wherein support column 125 is coupled to base 121; boom assembly 126 is pivotally connected to mast 125 in an up-down direction, boom assembly 126 is connected to hook 131, and first drive assembly 130 is connected to boom assembly 126 to drive boom assembly 126 to pivot up and down, thereby moving hook 131 in an up-down direction.

In the process of controlling the tractor 100 to reverse to approach the device 200 to be hooked, a driver can firstly control the first driving assembly 130 to drive the boom assembly 126 to rotate downwards in the cab, so that the height of the hook 131 is smaller than that of the hanging arm 212 of the device 200 to be hooked; then, controlling the tractor 100 to back up to the hitching arm 212 of the device to be hitched 200, so that the hook 131 is positioned right below the hitching arm 212; finally, the first driving assembly 130 is controlled to drive the boom assembly 126 to rotate upward by a certain angle, so that the hook 131 abuts against the hitching arm 212 and lifts the hitching arm 212 to a proper height, so that the hitching arm 212 can be hitched with the hitching part 110 of the towing vehicle 100.

In some embodiments, a first hinge seat 1251 is provided on the outer wall of the support column 125, a second hinge seat 1261 is provided on the boom assembly 126, and the first driving assembly 130 comprises a first telescopic driving mechanism having one end hinged to the first hinge seat 1251 and the other end hinged to the second hinge seat 1261. By controlling the extension and retraction of the first telescopic drive mechanism, the distance between the first hinge base 1251 and the second hinge base 1261 can be changed, thereby rotating the boom assembly 126 in the up-down direction relative to the support column 125.

Wherein, first flexible actuating mechanism is for can stretch out and draw back, change the actuating mechanism of self whole length, specifically includes pneumatic cylinder, perhaps, through the telescopic actuating mechanism of motor drive straight-bar etc. and here does not do the restriction.

In some embodiments, a support column 125 is rotatably connected to the base 121, the rotation axis of the support column 125 is at an angle to the rotation axis of the boom assembly 126, i.e., the rotation axis of the support column 125 is aligned with the vertical direction, and the boom assembly 126 on the support column 125 can be rotated in the left-right direction by rotating the support column 125 relative to the base 121.

The rotation axis of the pillar 125 is an axis about which the pillar 125 rotates with respect to the base 121, that is, the pillar 125 rotates around the rotation axis, and when the pillar 125 is a cylinder, the rotation center of the pillar 125 is a center line thereof. Likewise, the axis of rotation of boom assembly 126 is the axis about which boom assembly 126 rotates relative to mast 125. The angle formed by the rotational axis of strut 125 and the rotational axis of boom assembly 126 can be acute, right, or obtuse, as long as the direction of rotation of strut 125 is different from the direction of rotation of boom assembly 126. The rotation axis of the strut 125 and the rotation axis of the boom assembly 126 may be non-coplanar straight lines or coplanar straight lines, and are not limited herein.

The hitch 120 further includes a second driving assembly 132, wherein the second driving assembly 132 is connected to the pillar 125 to drive the pillar 125 to rotate.

When backing the tractor 100 to approach the device 200 to be hitched, the driver can drive the support column 125 to rotate by controlling the second driving assembly 132, so that the boom assembly 126 and the hook 131 thereon deflect a certain distance leftwards or rightwards, and the hook 131 is prevented from colliding with the hitching arm 212 of the device 200 to be hitched during backing the tractor 100; then, the first driving assembly 130 is controlled to drive the boom assembly 126 to rotate downwards by a certain angle, so that the height of the hook 131 is smaller than that of the hitching arm 212; then, the second driving assembly 132 is controlled to drive the strut 125 to rotate for a certain angle, so that the hook 131 is positioned right below the hooking arm 212; finally, the first driving assembly 130 is controlled to drive the boom assembly 126 to rotate upwards by a certain angle, so that the hook 131 abuts against the hitching arm 212 and lifts the hitching arm 212 to a proper height, so that the hitching arm 212 can be hitched with the hitching part 110 of the towing vehicle 100.

It will be appreciated that by pivotally connecting the post 125 to the base 121 and driving the rotation of the post 125 via the second drive assembly 132, the towing vehicle 100 does not need to make turns when backing up the vehicle 100 adjacent to the hitching arm 212 of the arm 212 to be hitched, and the operation is more convenient.

In some embodiments, a third hinge seat 1252 is protruded from an outer wall of the pillar 125, and the second driving assembly 132 includes a second telescopic driving mechanism, one end of which is hinged to the third hinge seat 1252, and the other end of which is hinged to the base 121. By controlling the second telescopic driving mechanism to extend and retract, the distance between the third hinge seat 1252 and the base 121 can be changed, so that the pillar 125 rotates in the up-and-down direction relative to the base 121.

Wherein the third hinge seat 1252 and the first hinge seat 1251 can be distributed on two opposite sides of the pillar 125 to avoid the first driving assembly 130 and the second driving assembly 132 from interfering with each other. In addition, the structure of the second telescopic driving mechanism can refer to the structure of the first telescopic driving mechanism, and is not described herein again.

Specifically, the mounting seat 1212 of the base 121 is provided with a mounting hole (not shown), a bearing is installed in the mounting hole, and the lower end of the support column 125 is inserted into the mounting hole and rotatably connected with the mounting seat 1212 through the bearing. A hinge 133 is sleeved on the pillar 125, the hinge 133 is fixedly connected to the pillar 125, and two opposite sides of the hinge 133 are respectively extended with a side plate to form a first hinge seat 1251 and a third hinge seat 1252, wherein the first hinge seat 1251 and the boom assembly 126 are located at the same side of the pillar 125. The base 121 further includes a fourth hinge seat 123 fixedly connected to the fixing seat 114 of the tractor 100, one end of the second telescopic driving mechanism is hinged to the third hinge seat 1252, and the other end is hinged to the fourth hinge seat 123.

In some embodiments, as shown in fig. 2, the hook 131 extends along the rotation axis of the boom assembly 126, so that the hook 131 can stably hook the hitching arm 212 after moving to a position right under the hitching arm 212 of the device to be hitched 200, and the hook 131 can be easily separated from the hitching arm 212 after the hitching arm 212 is hitched with the hitching section 110 of the towing vehicle 100.

Wherein the hook 131 has a connection end connected to the suspension arm assembly 126 and a free end far from the connection end, a guide surface may be further provided on the hook 131, the guide surface being located at an upper side of the hook 131, and the guide surface extending from the free end of the hook 131 toward the connection end and being upwardly inclined so that the hook 131 is inserted below the hitching arm 212 or is separated from below the hitching arm 212.

In other embodiments, the hook 131 is a telescopic structure, and the telescopic direction of the hook 131 is the same as the rotation direction of the boom assembly 126, and a third driving assembly for driving the hook 131 to telescope is disposed on the boom assembly 126. When a driver backs the tractor 100 to be close to the device to be hooked 200, the hook 131 can be driven to contract through the third driving component so as to avoid the hitching arm 212, when the height of the hook 131 is smaller than that of the hitching arm 212, the hook 131 can be driven to extend to the position right below the hitching arm 212 through the third driving component, then the boom component 126 is driven to rotate upwards through the first driving component 130, the hook 131 is hooked with the hitching arm 212, and the hitching arm 212 is lifted to a preset height. At this time, the support column 125 can be fixedly connected with the base 121 without driving the support column 125 to rotate by the second driving assembly 132.

In some embodiments, as shown in fig. 1 and 2, the boom assembly 126 comprises a first boom 127 and a second boom 129 rotatably connected to each other, an end of the first boom 127 remote from the second boom 129 is rotatably connected to the support 125 in an up-and-down direction, and a first driving assembly 130 is connected to the first boom 127 for driving the first boom 127 to rotate; the rotation axis of the second boom 129 coincides with the rotation axis of the first boom 127, and the hook 131 is connected to the second boom 129. Therefore, the second suspension arm 129 naturally sags under the action of self gravity, and the horizontal displacement of the hook 131 and the second suspension arm 129 is small in the process that the first suspension arm 127 rotates relative to the support column 125 to drive the second suspension arm 129 and the hook 131 to move up and down, so that the hook 131 cannot fall off below the hanging arm 212.

The second hinge base 1261 is disposed at the lower side of the first suspension arm 127, one end of the first telescopic driving mechanism is hinged to the first hinge base 1251 on the pillar 125, and the other end is hinged to the second hinge base 1261 at the lower side of the first suspension arm 127, so that the first telescopic driving mechanism drives the first suspension arm 127 to rotate up and down.

In some embodiments, the second boom 129 comprises a first sub-boom 1291 in rotational connection with the first boom 127 and a second sub-boom 1292 in telescopic connection with the first sub-boom 1291, to which second sub-boom 1292 the hook 131 is connected. Therefore, the overall length of the second boom 129 can be changed by controlling the relative telescopic distance between the first sub-boom 1291 and the second sub-boom 1292, and further the height of the hook 131 can be changed to adapt to the difference of the mounting and hooking heights of the device to be hooked 200 caused by different models of tractors 100 or different tire pressures of the tractors 100.

In some embodiments, as shown in fig. 2, the second boom 129 comprises a positioning element 1293, which positioning element 1293 is adapted to be connected to the first sub-boom 1291 and the second sub-boom 1292 after the second sub-boom 1292 has been telescoped a predetermined distance relative to the first sub-boom 1291 in order to position the first sub-boom 1291 and the second sub-boom 1292 such that the overall length of the second boom 129 is fixed and the second sub-boom 1292 is prevented from further telescoping relative to the first sub-boom 1291.

Specifically, the hitch 120 includes a first hinge shaft 1253, a first hinge hole (not shown) is formed at one end of the first boom 127 close to the pillar 125, two first hinge parts 1254 are formed at the top of the pillar 125, the two first hinge parts 1254 are distributed at two opposite sides of the first boom 127, and a second hinge hole (not shown) corresponding to the first hinge hole is formed at each of the two first hinge parts 1254, and the first boom 127 and the pillar 125 are rotatably connected by inserting the first hinge shaft 1253 into the first hinge hole and the second hinge hole of the two first hinge parts 1254. Wherein the rotation direction of the first hinge shaft 1253 is perpendicular to the rotation direction of the pillar 125.

The hitch 120 includes a second hinge shaft 1271, a third hinge hole (not shown) is formed at an end of the first boom 127 away from the pillar 125, two second hinge parts 1294 are formed at an upper end of the first sub-boom 1291, the two second hinge parts 1294 are distributed at two opposite sides of the first boom 127, and a fourth hinge hole (not shown) corresponding to the third hinge hole is formed at each of the two second hinge parts 1294, and the first sub-boom 1291 and the first boom 127 are rotatably connected by inserting the second hinge shaft 1271 into the third hinge hole and the fourth hinge holes of the two second hinge parts 1294. Wherein the rotational axis of the second hinge shaft 1271 is parallel to the rotational axis of the first hinge shaft 1253.

A telescopic hole (not shown) is formed in a concave manner on the lower end surface of the first sub-boom 1291, a first positioning hole (not shown) is formed in the inner wall of the telescopic hole, and one end of the second sub-boom 1292 is inserted into the telescopic hole and is connected with the inner wall of the telescopic hole in a sliding manner.

A plurality of second positioning holes 1295 are formed in the second sub-boom 1292, and the plurality of second positioning holes 1295 are sequentially distributed along the length direction of the second sub-boom 1292, when the second sub-boom 1292 extends and contracts a certain distance relative to the first sub-boom 1291, the first positioning hole of the first sub-boom 1291 corresponds to one of the plurality of second positioning holes 1295 of the second sub-boom 1292, and then the positioning member 1293 is inserted into the first positioning hole and the corresponding second positioning hole 1295, so as to position the first sub-boom 1291 and the second sub-boom 1292.

In some embodiments, the boom assembly 126 further includes a bumper 128, the bumper 128 being proud of the underside of the first boom 127. When the first drive assembly 130 drives the first boom 127 to rotate upward by a large angle, the second boom 129 approaches the first boom 127 under the influence of gravity. At this time, the buffer 128 can abut against the second boom 129 to buffer the second boom 129 and prevent the second boom 129 from colliding with the first boom 127.

Specifically, the buffer member 128 includes a support 1281 protruding below the first suspension arm 127, and an elastic member 1282 disposed below the support 1281, so as to improve the buffering effect of the buffer member 128.

In some embodiments, as shown in fig. 1, the device to be hooked 200 includes a supporting plate 210 for supporting goods, and a roller 211 disposed below the supporting plate 210, wherein a hooking arm 212 is rotatably connected to an end of the supporting plate 210, and a hooking tab 213 is disposed at an end of the hooking arm 212 away from the supporting plate 210, and the hooking tab 213 has a first hooking hole 214 therethrough.

The hitching section 110 at the tail of the towing vehicle 100 includes a hitching plate 111 and a hitching pin 112 connected to the hitching plate 111, and the hitching arm 212 of the device to be hitched 200 can be lifted up, the hitching lug 213 is supported on the hitching plate 111, and the hitching pin 112 passes through the first hitching hole 214 on the hitching lug 213, so that the hitching section 110 of the towing vehicle 100 and the hitching arm 212 of the device to be hitched 200 are hitched together.

Wherein, a second coupling hole (not shown) is formed through the coupling plate 111, after the coupling tab 213 is supported on the coupling plate 111, the first coupling hole 214 of the coupling tab 213 can be corresponding to the second coupling hole of the coupling plate 111, and then the coupling pin 112 is inserted into the first coupling hole 214 and the second coupling hole, so that the coupling and separation between the coupling portion 110 and the coupling arm 212 are more convenient.

In some embodiments, the towing vehicle 100 is further provided with a driving rod assembly 113 connected to the hitching pin 112 and used for driving the hitching pin 112 to ascend and descend, and a control end of the driving rod assembly 113 is located in the cab of the towing vehicle 100, so that a driver can drive the hitching pin 112 to ascend and descend through the driving rod assembly 113 in the cab without getting off the vehicle for operation.

In some embodiments, the hanging portion 110 includes a plurality of hanging plates 111, the hanging plates 111 are sequentially distributed along an up-down direction, and a second coaxial hanging hole is formed in each hanging plate 111. Therefore, the hanging arm 212 can be hung with one of the hanging plates 111 after rotating to the height suitable for the device to be hung 200, and the hanging arm 212 is prevented from being lifted too high or too low.

The embodiment of the utility model provides a still provide a tractor, this tractor includes hooking device, and this hooking device's concrete structure refers to above-mentioned embodiment, because this tractor has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, no longer gives unnecessary detail here.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The hitching apparatus and the towing vehicle provided by the embodiment of the present application are described in detail above, and a specific example is applied in the description to explain the principle and the embodiment of the present application, and the description of the embodiment is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. A hitch arrangement, for a towing vehicle, the hitch arrangement comprising:

the base is used for being installed at the tail part of the tractor;

the lifting mechanism is arranged on the base;

and the hook is connected with the lifting mechanism so that the lifting mechanism drives the hook to lift.

2. A hitch assembly as set forth in claim 1, wherein said lift mechanism includes:

a strut connected with the base;

the suspension arm assembly is connected with the support column in a rotating mode along the vertical direction and is connected with the hook;

and the first driving assembly is connected with the suspension arm so as to drive the suspension arm to rotate up and down.

3. A hitch as set forth in claim 2 wherein said post is pivotally connected to said base, the axis of rotation of said post being at an angle to the axis of rotation of said boom assembly; the hanging device further comprises a second driving assembly, and the second driving assembly is connected with the support column to drive the support column to rotate.

4. A hitch device as set forth in claim 3 wherein a first pivot mount is provided on the outer wall of said post and a second pivot mount is provided on said boom assembly, said first drive assembly including a first telescopic drive mechanism having one end pivotally connected to said first pivot mount and the other end pivotally connected to said second pivot mount.

5. A hitch device as set forth in claim 3 wherein a third hinge mount is proud of the outer wall of said post, and said second drive assembly includes a second telescopic drive mechanism having one end hingedly connected to said third hinge mount and the other end hingedly connected to said base.

6. A hitch as set forth in claim 2 wherein said boom assembly includes pivotally connected first and second booms, an end of said first boom remote from said second boom pivotally connected to said post in an up and down direction, said first drive assembly connected to said first boom to drive rotation of said first boom, an axis of rotation of said second boom coinciding with an axis of rotation of said first boom, said hook connected to said second boom.

7. A hitch arrangement as claimed in claim 6, characterized in that the second boom comprises a first sub-boom which is pivotally connected to the first boom, and a second sub-boom which is telescopically connected to the first sub-boom, the hook being connected to the second sub-boom.

8. A hitch as set forth in claim 6 wherein said boom assembly further includes a bumper disposed proud of said first boom.

9. Tractor, characterized in that it comprises a hitch arrangement according to any one of claims 1-8.

10. The tractor of claim 9, wherein the tail portion of the tractor is provided with a hitch portion for hitching with a device to be hitched.

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