CN106671711A - Traction hook and traction device - Google Patents
Traction hook and traction device Download PDFInfo
- Publication number
- CN106671711A CN106671711A CN201611170234.6A CN201611170234A CN106671711A CN 106671711 A CN106671711 A CN 106671711A CN 201611170234 A CN201611170234 A CN 201611170234A CN 106671711 A CN106671711 A CN 106671711A
- Authority
- CN
- China
- Prior art keywords
- traction
- hole
- axis
- hook
- lock pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/01—Traction couplings or hitches characterised by their type
- B60D1/02—Bolt or shackle-type couplings
- B60D1/025—Bolt or shackle-type couplings comprising release or locking lever pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/28—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for preventing unwanted disengagement, e.g. safety appliances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
- B60D1/32—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving damping devices
- B60D1/322—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving damping devices using fluid dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
- B60D1/34—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving springs
- B60D1/345—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving springs the springs being of the bar or leaf type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/42—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
The invention provides a traction hook and a traction device. The traction hook penetrates through a traction ring with a through hole through a lock pin so that the traction hook can be connected with the traction ring. The traction hook comprises a mechanical connecting assembly, an air pressure control assembly and a hydraulic pressing assembly, wherein the air pressure control assembly comprises an air pressure control device, an air channel connecting pipe and an air bag; the air channel connecting pipe is connected with the air pressure control device and the air bag; the hydraulic pressing assembly comprises a first hydraulic cavity, a second hydraulic cavity, a linkage assembly and a pressing rod; and the first hydraulic cavity communicates with the second hydraulic cavity. When the lock pin penetrates through the through hole of the traction ring, the air pressure control device inflates the air bag, and the size of the air bag is increased, so that liquid in the first hydraulic cavity flows into the second hydraulic cavity, the linkage assembly pushes the pressing rod towards one end of the mechanical connecting assembly, and the pressing rod abuts against the end of the traction ring. According to the traction hook provided by the invention, the service life of the traction hook can be prolonged.
Description
Technical field
The present invention relates to trailer connection area, more particularly, to a kind of hook and traction apparatuss.
Background technology
In prior art, hook is the instrument used when trailer is needed, and towing pad is located at the front portion of car, first uses screwdriver
Deng the cover plate of tamper tool towing pad, then hook is inserted and is tightened in towing pad, typically in order to ensure firm, tire can be used
Spanner is inserted in hook to be tightened.Also have other kinds of hookup have been widely used for being pulled by tractor it is various
The field of trailer, most of traditional hookup include the first pontes being linked with a vehicle and one with it is another
The combinative structure of the second connecting portion part that vehicle is connected.Connect for reality, vehicle should accomplish the right of connecting portion in connection
Standard, requires the firm connection of trailer connecting portion again, thus the compound mode of connecting portion is key point.
A kind of connected mode of prior art is, the lock pin of hook by hook and leads through the through hole of bail
Draw ring to link together.When general bail is installed and used with lock pin cooperation, there is gap between the two.Vehicular motion
In, due to the presence and the change of car speed in gap, impulsive force being had between bail and lock pin, such case is in transport
It is even more serious during liquid article, and then cause the abnormal vibrations between hook and bail, increase abrasion, shortening uses the longevity
Life.
The content of the invention
It is an object of the invention to provide a kind of hook and traction apparatuss, overcome the difficulty of prior art, Neng Gouyan
The service life of long hook and bail.
According to an aspect of the present invention, there is provided a kind of hook, the hook has logical by a lock pin through one
To be connected with the bail, the hook includes the bail in hole：
Mechanical connection component, for controlling the lock pin movement；
Air pressure control assembly, including the adapter of Pneumatic controller, gas circuit and air bag, Pneumatic controller is arranged on the machine
Tool coupling assembly arranges one end of the lock pin, and the air bag is arranged on the other end of the mechanical connection component, gas circuit adapter
Connect the Pneumatic controller and the air bag respectively；
Hydraulic compression component, including the first hydraulic cavities, the second hydraulic cavities, linkage unit and compressor arm, first hydraulic pressure
Chamber and second hydraulic chamber into communication, and installed in the other end of the mechanical connection component, the air bag is located at described first
Hydraulic pressure intracavity, is filled with liquid, one end connection described the of the linkage unit between the air bag and first hydraulic cavities
Two hydraulic cavities, the other end of the linkage unit is relative with one end of the compressor arm,
Wherein, when through hole of the lock pin through the bail, the Pneumatic controller is connect by the gas circuit
Pipe is to the airbag aeration, the air bag volume increase so that the liquid of the first hydraulic pressure intracavity is to second hydraulic cavities
Flowing, so that the linkage unit promotes the compressor arm to one end of mechanical connection component, abuts the compressor arm described
The end of bail：
When removing in through hole of the lock pin from the bail, the Pneumatic controller reduces the gas circuit adapter
Air pressure in the air bag of connection, the air bag volume reduces so that the liquid of the second hydraulic pressure intracavity flows to described first
Hydraulic cavities, pressure in second hydraulic cavities reduces, one end movement of the linkage unit dorsad mechanical connection component, described
Compressor arm no longer abuts the end of the bail.
Alternatively, the mechanical connection component includes：
Axis of traction, with through the clematis stem hole of axis of traction axial direction；
Horn mouth, the opening size that the horn mouth has opening and closing in end, the opening is more than the closing in
The opening size at end, the closing in end is connected with one end of the axis of traction, and the closing in end has two relative end faces, should
A lock space is formed between two relative end faces, dorsad the axis of traction is arranged the opening；
Drive mechanism, the drive mechanism has driving means and accommodates the drive mechanism shell of the driving means, institute
State drive mechanism shell and form an accommodation space connected with the lock space, the driving means control the lock pin in institute
State and moved between accommodation space and the lock space.
Alternatively, the drive mechanism is arranged on one end of the axis of traction, and the driving means include：
Positioned at the handle and trigger board of the drive mechanism inside the shell, the handle has an extend axle portion, the extension
Axle portion passes through the first end of the trigger board, the trigger board to rotate with the extend axle portion, the second end of the trigger board
The lock pin is abutted,
Wherein, rotating the handle drives the extend axle portion to rotate, and the extend axle portion drives the trigger board to rotate,
Second end of the trigger board controls the lock pin and moves up and down to be connected and disengage with the bail.
Alternatively, the Pneumatic controller is arranged on the drive mechanism inside the shell of the drive mechanism, the air bag peace
It is mounted in the other end of axis of traction.
Alternatively, the air pressure control assembly also includes：Ventilating control is switched, for controlling the Pneumatic controller,
Installed in the drive mechanism inside the shell of the drive mechanism, wherein, when the handle rotates the trigger board by rotation, control
When the lock pin passes through the through hole of the bail, the trigger board contacts the ventilating control switch to open air pressure control dress
Put, the Pneumatic controller is taken over to the airbag aeration by the gas circuit.
Alternatively, first hydraulic cavities and second hydraulic cavities are arranged on the other end of the axis of traction, described
One end of dynamic component is located at the second hydraulic pressure intracavity, and the other end of the linkage unit is located in the clematis stem hole, described
Compressor arm is located at one end of the axis of traction, and one end of the compressor arm is located in the clematis stem hole.
Alternatively, the other end of compressor arm is provided with flange, and the external diameter of the flange is more than the internal diameter in the clematis stem hole.
Alternatively, the linkage unit includes：Hydraulic slide, spring and push rod, the hydraulic slide is located at described second
Hydraulic pressure intracavity, the hydraulic slide seals second hydraulic cavities, and the hydraulic slide can be along the axial direction of the axis of traction
Slide, the push rod is located in the clematis stem hole, and one end of the push rod is connected with the hydraulic slide, the ring spring
Around the push rod, and the spring is along the axial direction compressing and stretching of the axis of traction.
Alternatively, spring is provided between the hydraulic slide and the second hydraulic pressure cavity wall, the spring is along described
The axial direction compressing and stretching of axis of traction.
Alternatively, the other end of the push rod is connected with a slide block, and by the slide block applying to the compressor arm
Plus thrust.
Alternatively, the described bell-mouthed one end of the axis of traction connection is provided with two relative the first extensions and second
Extension, is respectively equipped with a first through hole on first extension and the second extension, two first through hole are concentric, and
First axle of the line of centres of two first through hole perpendicular to the axis of traction.
Alternatively, the horn mouth can be rotatably mounted on the axis of traction around the line of centres of the first through hole,
The closing in end is connected with two extensions of the axis of traction, and one is respectively arranged with two end faces at the closing in end
Three through holes, two third through-holes are concentric with the first through hole, wherein, the first through hole and the third through-hole are used for
Connect the lock space and the accommodation space.
Alternatively, the other end of the axis of traction also installs bearing assembly, and the bearing assembly is located at first hydraulic pressure
Between chamber and the drive mechanism.
Alternatively, the bearing assembly include bearing block, the first cushion pad and the second cushion pad, first cushion pad,
There is through hole so that the axis of traction is passed through on the bearing block, second cushion pad, the bearing seat is in the first buffering
Between pad and the second cushion pad, and first cushion pad and second cushion pad are in its pre-compressed state.
Alternatively, retaining ring is also set up between first cushion pad and the bearing block, is had in the retaining ring logical
Hole passes through for axis of traction.
Alternatively, taper washer is also set up between second cushion pad and the latch assembly, on the taper washer
With through hole so that the axis of traction is passed through.
Alternatively, the lock pin includes curved portions and cylindrical portion, and the external diameter of the curved portions is more than the cylindrical portion
External diameter, wherein, the lock pin enter the lock space and pass through the bail through hole, and the bail perpendicular to
During the lock pin axial direction, the outer wall of the curved portions is less than the cylinder with minimum range t1 of the bail inwall
The outer wall in portion is with the bail inwall apart from t.
According to another aspect of the invention, a kind of traction apparatuss are also provided, including：Hook as above；And lead
Draw ring, with a through hole, pass through for the lock pin of the hook, with the traction hook connects.
There is compared to existing technology following advantage due to having used above technology, the present invention：
1) present invention on hook by increasing air pressure control assembly and hydraulic compression component so that hook and traction
When ring connects, bail is pressed on lock pin, eliminates the gap between bail and lock pin, improve the steady of rear car traveling
It is qualitative, abnormal vibrations are reduced, increase the service life；
2) present invention installs the bearing assembly with two cushion pads by the other end in axis of traction, and then in hook
During the traveling after the connection of automobile, there is provided cushioning effect, during alleviating bearing assembly and axis of traction due to traveling
Mechanical failure caused by institute is clashed into, the service life and reliability of hook is improved；
3) present invention is by the shape for arranging lock pin so that the gap between lock pin and bail through-hole wall is relatively
It is little, the impulsive force between lock pin and bail is reduced with this, and under bail angle of inclination, can further increase bail
The contact area of the lock pin of through-hole wall, and then enable hook to bear bigger pull strength so that hook has longer
Service life.
Description of the drawings
Technical scheme is described in detail below in conjunction with the drawings and specific embodiments, so that the present invention
Characteristic and advantage become apparent from.
Fig. 1 is the axonometric chart of the traction apparatuss according to one embodiment of the invention；
Fig. 2 is the exploded view of the hook according to one embodiment of the invention；
Fig. 3 is the axonometric chart of the axis of traction according to one embodiment of the invention；
Fig. 4 is the bell-mouthed axonometric chart according to one embodiment of the invention；
Fig. 5 is the axonometric chart of the drive mechanism according to one embodiment of the invention；
Fig. 6 is the profile of the traction hook connects bail according to one embodiment of the invention；
Fig. 7 is the profile of the traction hook connects bail according to one embodiment of the invention；
Fig. 8 is the profile according to the not connected bail of the hook of one embodiment of the invention；
Fig. 9 is the exploded view of the bearing assembly according to one embodiment of the invention；
Figure 10 is the schematic diagram of the bearing assembly according to one embodiment of the invention；
Figure 11 is the profile of the bearing assembly according to one embodiment of the invention；
Figure 12 is the schematic diagram of the hook with cylindricality lock pin according to the embodiment of the present invention；
Figure 13 is the schematic diagram of the hook with arc lock pin according to the embodiment of the present invention；
Figure 14 is the schematic diagram of the hook of another state with arc lock pin according to the embodiment of the present invention.
Reference
The cylindrical portion of 1 axis of traction 42
The bearing assembly of 11 first extension 5
The bearing block of 111 first through hole 51
The cushion pad of 12 second extension 561 first
The cushion pad of 121 first through hole 562 second
The retaining ring of 13 first axle 57
The taper washer of the other end 58 of 14 axis of traction
The Pneumatic controller of 15 clematis stem hole 201
The ventilating control switch of one end 202 of 16 axis of traction
The gas circuit of 2 horn mouth 203 is taken over
The air bag of 21 opening 204
22 closing in end the first hydraulic cavities of 301A
221 the second hydraulic cavities of end face 301B
The linkage unit of 222 third through-hole 302
The compressor arm of 23 lock space 302
The hydraulic slide of 3 drive mechanism 304
31 drive mechanism shell 304A slide blocks
The connecting plate of 311 accommodation space 305
The spring of 33 handle 307
331 extend axle portion 307A springs
The push rod of 34 trigger board 308
The liquid of first end 309 of 341 trigger board
The base assembly of second end 7 of 342 trigger board
The bail of 35 spring 9
The through hole of 4 lock pin 91
41 curved portions
Specific embodiment
Hereinafter will embodiments of the invention be given with detailed description.Although the present invention will be with reference to some specific embodiments
It is illustrated and illustrates, but should be noted that the present invention is not merely confined to these embodiments.Conversely, to the present invention
The modification for carrying out or equivalent, all should cover in the middle of scope of the presently claimed invention.
In addition, in order to better illustrate the present invention, numerous details are given in specific embodiment below.
It will be understood by those skilled in the art that without these details, the present invention equally can be implemented.It is right in other example
It is not described in detail in known structure and part, in order to highlight the purport of the present invention.
With reference to Fig. 1 to Fig. 5, the traction apparatuss of one embodiment of the invention and the structure of hook are described.Fig. 1 is according to this
The axonometric chart of the traction apparatuss of a bright embodiment；Fig. 2 is the exploded view of the hook according to one embodiment of the invention；Fig. 3 is root
According to the axonometric chart of the axis of traction of one embodiment of the invention；Fig. 4 is the bell-mouthed axonometric chart according to one embodiment of the invention；Fig. 5
It is the axonometric chart of the drive mechanism according to one embodiment of the invention.
As shown in Fig. 1 to 5, the invention provides a kind of traction apparatuss, traction apparatuss are including hook and with through hole 91
Bail 9.Hook includes mechanical connection component, air pressure control assembly and hydraulic compression component.Mechanical connection component includes
Axis of traction 1, horn mouth 2, drive mechanism 3 and lock pin 4.
The structure of axis of traction 1 can be found in Fig. 3, and one end of axis of traction 1 is provided with two the first relative extensions 11 and
Two extensions 12.A first through hole 111,121 is respectively equipped with the extension 12 of first extension 11 and second.Two first
Through hole 111,121 is concentric, and the line of centres of two first through hole 111,121 is perpendicular to the first axle 13 of axis of traction 1.Lead
Draw the bearing of trend of the first axle 13 for axis of traction 1 of axle 1.
The concrete structure of horn mouth 2 can be found in Fig. 4, with reference to Fig. 1 to Fig. 4, horn mouth 2 can around the first through hole 111,
121 line of centres is rotatably mounted on axis of traction 1.Horn mouth 2 has opening 21 and closing in end 22.Opening 21 and receipts
Insertion between mouth end 22.Opening size of the opening size of opening 21 more than closing in end 22.Dorsad axis of traction 1 sets opening 21
Put, and opening 21 dorsad axis of traction 1 is open.Closing in end 22 is connected with two extensions 11,12 of axis of traction 1.Closing in end 22
With two relative end faces 221.Alternatively, this two relative end faces 221 are by the attachment structures such as bolt and axis of traction 1
Two extensions 11,12 connect.Alternatively, this two relative end faces 221 be located at axis of traction 1 two extensions 11,12 it
Between.A third through-hole 222 is respectively arranged with this two relative end faces 221.Two third through-holes 222 and first through hole
111st, 121 with one heart, and between two third through-holes 222 (or two relative end faces 221) lock space 23 is formed.
Drive mechanism 3 is installed on the first extension 11 of axis of traction 1.Drive mechanism 3 has driving means and accommodates drives
The drive mechanism shell 31 of dynamic device.Drive mechanism shell 31 also forms an accommodation space 311.The accommodation space 311 is by the
One through hole 111,121 and third through-hole 222 are connected with the lock space 23 of horn mouth 2.Driving means are used to control lock pin 4 in appearance
Move between 31 and lock space 23 between being empty.
Drive mechanism 3 is additionally provided with the stick 37 from its internal drive of peripheral operation, and stick is used for and control
Plate, spring 35 and driving means miscellaneous part are engaged, to control lock pin movement.In having some embodiments, outside drive mechanism
The connection hole position 38 of attachment device is provided with shell 31, for increasing the product of the upgrading model of adnexa.Drive mechanism 3 can also set
The indicator 39 for indicating the connection status of lock pin 4 is equipped with, when hook is in open mode, lock pin 4 is moved up, and promotion refers to
Show that the indicating arm in device 39 is protruding, can clearly know that lock pin 4 is in open mode from outside.Hook is in closure
During state (lock pin 4 pass through and pin bail 9), indicating arm is returned to inside indicator 39 in indicator 39, can be with from outside
Clearly know that lock pin 4 has been moved down into ad-hoc location and has locked lock pin 4.
Mechanical connection component can also include base assembly 7, and base assembly 7 is used for second by horn mouth 2 and axis of traction 1
Extension 12 connects, and the line of centres rotation horn mouth 2 around first through hole 111,121 can be allow to be reset to original state.
Air pressure control assembly and hydraulic compression component are provided with reference to what Fig. 6 to Fig. 8 described one embodiment of the invention
Hook.Fig. 6 is the profile of the traction hook connects bail according to one embodiment of the invention；Fig. 7 is according to the present invention one
The profile of the traction hook connects bail of embodiment；Fig. 8 is according to the not connected bail of the hook of one embodiment of the invention
Profile.
Hook includes mechanical connection component, air pressure control assembly and hydraulic compression component.Mechanical connection component includes leading
Draw axle 1, horn mouth 2, drive mechanism 3 and lock pin 4.The driving means of drive mechanism 3 include handle 33 and trigger board 34.Handle 33
With an extend axle portion 331, through the first end 341 of trigger board 34, trigger board 34 can be with extend axle portion 331 for extend axle portion 331
Rotate.Second end 342 of trigger board 34 abuts lock pin 4.Rotary handle 33 drives extend axle portion 331 to rotate, the band of extend axle portion 331
Dynamic trigger board 34 is rotated, and the control lock pin 4 of the second end 342 of trigger board 34 moves up and down to be connected with bail 9.Axis of traction 1 is wrapped
Include the one end 16 and the other end 14 away from drive mechanism 3 for installing drive mechanism 3.Axis of traction 1 has through the axial direction side of axis of traction 1
To clematis stem hole 15.
Air pressure control assembly includes Pneumatic controller 201, ventilating control switch 202, gas circuit adapter 203 and air bag 204.
Pneumatic controller 201 and ventilating control switch 202 are arranged in the drive mechanism shell 31 of drive mechanism 3.Air bag 204 is installed
In the other end 14 of axis of traction 1.Gas circuit adapter 203 connects respectively Pneumatic controller 201 and air bag 204.Ventilating control is switched
202 are used to control Pneumatic controller 201.
Hydraulic compression component includes the first hydraulic cavities 301A, the second hydraulic cavities 301B, linkage unit 302 and compressor arm 303.
First hydraulic cavities 301A and the second hydraulic cavities 301B are connected, and installed in the other end 14 of axis of traction 1.Air bag 204 is located at first
In hydraulic cavities 301A.Liquid 309 is filled between hydraulic cavities 301A of air bag 204 and first.One end of linkage unit 302 is located at the
In two hydraulic cavities 301B, the other end of linkage unit 302 is located in clematis stem hole 15.Compressor arm 309 is located at one end of axis of traction 1
16, and one end of compressor arm 303 is in clematis stem hole 15.The other end of compressor arm 303 can be provided with flange, the external diameter of flange
More than the internal diameter in clematis stem hole 15, flange is set compressor arm 303 will not be fully located in clematis stem hole 15 in movement.
When handle 33 rotates trigger board 34 by rotation, with control lock pin 4 through bail 9 through hole 91 when, trigger board
34 contact ventilating control switch 202, open Pneumatic controller 201, make Pneumatic controller 201 by gas circuit adapter 203 to
Air bag 204 is inflated.The volume of air bag 204 increases so that the liquid 309 in the first hydraulic cavities 301A to the second hydraulic cavities 301B flow
Dynamic, the flowing of liquid 309 promotes linkage unit 302 to promote compressor arm to one end 16 of axis of traction 1 in the second hydraulic cavities 301B
303 so that compressor arm 303 abuts the end of bail 9, so reduce the inwall of through hole 91 and the lock pin 4 of bail 9 outer wall it
Between gap.When lock pin 4 is removed upwards from the through hole 91 of bail 9, Pneumatic controller 201 reduces gas circuit adapter 203
Air pressure in the air bag 204 of connection, the volume of air bag 204 reduces so that the liquid 39 in the second hydraulic cavities 301B flows to first
Hydraulic cavities 301A, the pressure in the second hydraulic cavities 301B reduces, and linkage unit 302 to the other end 14 of axis of traction 1 is moved, and compresses
Bar 303 no longer abuts the end of bail 9, and then no longer applies thrust to the inwall of 9 through hole of bail 91 and lock pin 4.Specifically
For, linkage unit 302 can include hydraulic slide 304, spring 307 and push rod 308.
Hydraulic slide 304 is located in the second hydraulic cavities 301B.Hydraulic slide 304 seals the second hydraulic cavities 301B, and hydraulic pressure is slided
Block 304 can slide along the axial direction of axis of traction 1.When the liquid 309 in the first hydraulic cavities 301A flows to the second hydraulic cavities 301B
When dynamic, hydraulic slide 304 is promoted to slide towards drive mechanism 3.When the liquid 309 in the second hydraulic cavities 301B is to the first hydraulic cavities
When 301A flows, hydraulic slide 304 dorsad slide by drive mechanism 3.Alternatively, in hydraulic cavities 301B of hydraulic slide 304 and second
Spring 307A is provided between wall.Spring 307A along axis of traction 1 axial direction compressing and stretching so that hydraulic slide 304 is relative
Flexibly slide in the second hydraulic cavities 301B inwall.
Push rod 308 is located in clematis stem hole 15, and one end of push rod 308 is connected with hydraulic slide 304.Alternatively, push rod
308 are connected by a connecting plate 305 with hydraulic slide 304.Alternatively, the other end of push rod 308 and a slide block 304A connect
Fixation is connect, and by slide block 304A with to the applying thrust of compressor arm 309.Between push rod 308 and the inwall in clematis stem hole 15,
Spring 307 can also be set at the position between connecting plate 305 and slide block 304A.
When hydraulic slide 304 slides towards drive mechanism 3, spring 307 compresses, and push rod 308 is with hydraulic slide 304
Slide towards drive mechanism 3, until promoting compressor arm 309 to abut the end of bail 9.Bail 9 is taken off when hanging, due to the second liquid
Pressure chamber 301B in pressure reduce, hydraulic slide 304 dorsad drive mechanism 3 slide when, push rod 308 is carried on the back in the presence of spring 307
Move to drive mechanism 3, slide block 304A is also moved to the other end 14 of axis of traction 1 under the action of the spring, compressor arm 303 and traction
Ring 9 keeps at a certain distance away, and bail 9 is disengaged.The present invention on hook by increasing air pressure control assembly and hydraulic compression group
Part so that when hook and bail 9 connect, bail 9 is pressed on lock pin 4, the through hole 91 of bail 9 is reduced or eliminated
Gap between the outer wall of inwall and lock pin 4, improve rear car traveling stability, reduce abnormal vibrations, extend hook and
The service life of bail 9.
The bearing assembly 5 of one embodiment of the invention is described with reference to Fig. 9 to Figure 11.Fig. 9 is according to an enforcement of the invention
The exploded view of the bearing assembly 5 of example；Figure 10 is the schematic diagram of the bearing assembly 5 according to one embodiment of the invention；According to Figure 11
The profile of the bearing assembly 5 of one embodiment of the invention.
Horn mouth 2 and drive mechanism 3 are installed in one end of axis of traction 1, and the other end 14 of axis of traction 1 installs bearing assembly 5.Axle
Bearing assembly 5 is located between first hydraulic cavities 301A and the drive mechanism 3.
Bearing assembly 5 includes bearing block 51, the first cushion pad 561, the second cushion pad 562.Bearing block 51 leads for connection
Draw axle 1 and trailer.First cushion pad 561 and the second cushion pad 562 can be rubber buffers, and the He of the first cushion pad 561
The size of second cushion pad 562, coefficient of elasticity can be with identical.
There is through hole so that axis of traction 1 is passed through on first cushion pad 561, bearing block 51, the second cushion pad 562.It is concrete and
Speech, the first cushion pad 561, bearing block 51, the second cushion pad 562 sequentially pass through axis of traction 1 from the other end 14 of axis of traction 1.Axle
Bearing 51 is located between the first cushion pad 561 and the second cushion pad 562.First cushion pad 561 and the second cushion pad 562 are in pre-
Compressive state.
Alternatively, retaining ring 57 is also set up between the first cushion pad 561 and bearing block 51, in retaining ring 57 have through hole with
Pass through for axis of traction 1.Retaining ring 57 is used for the first cushion pad 561 of prevention, and vertically dorsad horn mouth 2 is moved, and makes it keep pre-
Compressive state.
Alternatively, taper washer (for example, tapered cap 58), taper are also set up between the second cushion pad 562 and latch assembly
There is through hole so that axis of traction 1 is passed through on packing ring 58.Taper washer 58 is used to prevent the second cushion pad 562 dorsad loudspeaker vertically
Mouth 2 is moved, and makes its keep its pre-compressed state.
In the present embodiment, the bearing assembly 5 with two cushion pads is installed by the other end 14 in axis of traction 1, and then
During traveling after the connection of hook and automobile, two cushion pads cooperate, there is provided cushioning effect, alleviate bearing group
Part 5 and axis of traction 1 improve the service life and reliability of hook due to mechanical failure caused by the shock institute during traveling
Property.Meanwhile, the present embodiment passes through, and retaining ring 57 and taper washer 58 make two cushion pads keep its pre-compressed state, further carry
High buffering effect.
The lock pin of the embodiment of the present invention is described with reference to Figure 12 to Figure 14.Figure 12 is having according to the embodiment of the present invention
The schematic diagram of the hook of cylindricality lock pin；Figure 13 is the signal of the hook with arc lock pin according to the embodiment of the present invention
Figure；Figure 14 is the schematic diagram of the hook of another state with arc lock pin according to the embodiment of the present invention.
Referring first to Figure 13 and Figure 14.Hook includes axis of traction 1, horn mouth 2, drive mechanism 3 and lock pin 4.Axis of traction 1
Connect with horn mouth 2, horn mouth 2 has lock space 23.Bail 9 is entered after lock space 23, the control lock pin of drive mechanism 3
4 enter lock space 23, and through the through hole 91 of bail 9.
Lock pin 4 includes first (such as curved portions 41) and second (such as cylindrical portion 42), the external diameter of first 41
External diameter more than second 42.Lock pin 4 enters lock space 23 and through the through hole 91 of bail 9, and bail 9 is perpendicular to lock
During axial direction (or the moving direction) of pin 4, the outer wall of first 41 is less than with minimum range t1 of the inwall of through hole 91 of bail 9
The outer wall of second 42 is with the inwall of through hole 91 of bail 9 apart from t.Alternatively, the axial height of first 41 is equal to traction
The axial height of ring 9.
Contrasted with the cylindrical lock pin 4 shown in Figure 12, cylindrical lock pin 4 through bail 9 through hole 91 when, and lead
The gap drawn between the inwall of through hole 91 of ring 9 is larger, in use, due to the presence and the change of car speed in gap
Change, larger impulsive force can be produced between bail 9 and lock pin 4.And the curved portions 41 of the lock pin 4 shown in Figure 13 and Figure 14 with lead
The gap for drawing the inwall of through hole 91 of ring 9 is relatively small, can reduce the impulsive force between lock pin 4 and bail 9.
Further contrasted with the cylindrical lock pin 4 shown in Figure 12, using general cylindrical lock pin, in such as Figure 12 and
Under the heeling condition of Figure 14, the contact between bail 9 and lock pin 4 is linear contact, and contact area very little, contact point bears very
Big power, lock pin 4 is easy to damage at contact point, and the life-span is shorter.And the curved portions 41 of the lock pin 4 shown in Figure 13 and Figure 14 exist
Under the heeling condition of Figure 12 and Figure 14, can keep contacting well with the inwall of through hole 91 of bail 9, connect with larger
Contacting surface, can bear bigger pull strength, make lock pin 4 and bail 9 have longer service life.
There is compared to existing technology following advantage due to having used above technology, the present invention：
1) present invention on hook by increasing air pressure control assembly and hydraulic compression component so that hook and traction
When ring connects, bail is pressed on lock pin, eliminates the gap between bail and lock pin, improve the steady of rear car traveling
It is qualitative, abnormal vibrations are reduced, increase the service life；
2) present invention installs the bearing assembly with two cushion pads by the other end in axis of traction, and then in hook
During the traveling after the connection of automobile, there is provided cushioning effect, during alleviating bearing assembly and axis of traction due to traveling
Mechanical failure caused by institute is clashed into, the service life and reliability of hook is improved；
3) present invention is by the shape for arranging lock pin so that the gap between lock pin and bail through-hole wall is relatively
It is little, the impulsive force between lock pin and bail is reduced with this, and under bail angle of inclination, can further increase bail
The contact area of the lock pin of through-hole wall, and then enable hook to bear bigger pull strength so that hook has longer
Service life.
The above is only the concrete application example of the present invention, protection scope of the present invention is not limited in any way.Except above-mentioned
Implement exception, the present invention there can also be other embodiment.The technical scheme that all employing equivalents or equivalent transformation are formed,
Fall within scope of the present invention.
Claims (18)
1. a kind of hook, it is characterised in that the hook is by a lock pin (4) through a bail with through hole (91)
(9) to be connected with the bail (9), the hook includes：
Mechanical connection component, it is mobile for controlling the lock pin (4)；
Air pressure control assembly, including Pneumatic controller (201), gas circuit adapter (203) and air bag (204), Pneumatic controller
(201) one end of the lock pin (4) is set installed in the mechanical connection component, and the air bag (204) is installed in the machinery
The other end of coupling assembly, gas circuit adapter (203) connects respectively the Pneumatic controller (201) and the air bag (204)；
Hydraulic compression component, including the first hydraulic cavities (301A), the second hydraulic cavities (301B), linkage unit (302) and compressor arm
(303), first hydraulic cavities (301A) connect with second hydraulic cavities (301B), and installed in the mechanical connection component
The other end, the air bag (204) in first hydraulic cavities (301A), the air bag (204) and first hydraulic pressure
Liquid (309) is filled between chamber (301A), one end of the linkage unit (302) connects second hydraulic cavities (301B),
The other end of the linkage unit (302) is relative with one end of the compressor arm (303),
Wherein, when through hole (91) of the lock pin (4) through the bail (9), the Pneumatic controller (201) passes through
Gas circuit adapter (203) is inflated to the air bag (204), air bag (204) the volume increase so that first hydraulic cavities
(301A) liquid (309) in second hydraulic cavities (301B) are flowed, so that the linkage unit (302) is to mechanical connection
One end of component promotes the compressor arm (303), makes the compressor arm (303) abut the end of the bail (9)：
When the lock pin (4) is removed from the through hole (91) of the bail (9), the Pneumatic controller (201) reduces
Air pressure in the air bag (204) of gas circuit adapter (203) connection, air bag (204) volume reduces and causes described the
Liquid (309) in two hydraulic cavities (301B) flows to first hydraulic cavities (301A), in second hydraulic cavities (301B)
Pressure reduces, one end movement of the linkage unit (302) dorsad mechanical connection component, and the compressor arm (303) no longer abuts
The end of the bail (9).
2. hook as claimed in claim 1, it is characterised in that the mechanical connection component includes：
Axis of traction (1), with through the clematis stem hole (15) of axis of traction (1) axial direction；
Horn mouth (2), the horn mouth (2) is with opening (21) and closing in end (22), the open-mouth ruler of the opening (21)
The very little opening size more than the closing in end (22), the closing in end (22) is connected with one end (16) of the axis of traction (1), institute
Closing in end (22) is stated with two relative end faces (221), between this two relative end faces (221) lock space is formed
(23), the opening (21) dorsad axis of traction (1) setting；
Drive mechanism (3), drive mechanism shell of the drive mechanism (3) with driving means and the receiving driving means
(31), the drive mechanism shell (31) forms an accommodation space (311) connected with the lock space (23), the driving
Device controls the lock pin (4) and moves between the accommodation space (311) and the lock space (23).
3. hook as claimed in claim 2, it is characterised in that the drive mechanism (3) is installed in the axis of traction (1)
One end (16), the driving means include：
Handle (33) and trigger board (34) in the drive mechanism shell (31), the handle (33) is with an outrigger shaft
Portion (331), through the first end (341) of the trigger board (34), the trigger board (34) is with described for the extend axle portion (331)
Extend axle portion (331) is rotated, and second end (342) of the trigger board (34) abuts the lock pin (4),
Wherein, rotating the handle (33) drives the extend axle portion (331) to rotate, and the extend axle portion (331) drives described
Trigger board (34) is rotated, second end (342) of the trigger board (34) control the lock pin (4) move up and down with the traction
Ring (9) connects and disengages.
4. hook as claimed in claim 3, it is characterised in that the Pneumatic controller (201) is installed in the driving
In the drive mechanism shell (31) of mechanism (3), the other end (14) of the air bag (204) installed in axis of traction (1).
5. hook as claimed in claim 4, it is characterised in that the air pressure control assembly also includes：
Ventilating control switchs (202), for controlling the Pneumatic controller (201), installed in the drive of the drive mechanism (3)
In dynamic mechanism shell (31),
Wherein, when the handle (33) rotates the trigger board (34) by rotation, the lock pin (4) is controlled through the traction
During through hole (91) of ring (9), the trigger board (34) contacts ventilating control switch (202) to open Pneumatic controller
(201) Pneumatic controller (201), is made to inflate to the air bag (204) by gas circuit adapter (203).
6. hook as claimed in claim 3, it is characterised in that first hydraulic cavities (301A) and second hydraulic cavities
(301B) installed in the other end (14) of the axis of traction (1),
One end of the linkage unit (302) be located at second hydraulic cavities (301B) in, the linkage unit (302) it is another
End is located in the clematis stem hole (15),
The compressor arm (309) is positioned at one end (16) of the axis of traction (1), and one end of the compressor arm (303) is located at institute
State in clematis stem hole (15).
7. hook as claimed in claim 6, it is characterised in that the other end of compressor arm (303) is provided with flange, the flange
External diameter more than the clematis stem hole (15) internal diameter.
8. hook as claimed in claim 2, it is characterised in that the linkage unit (302) includes：
Hydraulic slide (304), spring (307) and push rod (308),
In second hydraulic cavities (301B), the hydraulic slide (304) seals described second to the hydraulic slide (304)
Hydraulic cavities (301B), the hydraulic slide (304) is slided along the axial direction of the axis of traction (1),
The push rod (308) is in the clematis stem hole (15), and one end of the push rod (308) and the hydraulic slide
(304) connect,
The spring (307) is around the push rod (308), and the spring (307) is along the axial direction pressure of the axis of traction (1)
Contracting is stretched.
9. hook as claimed in claim 8, it is characterised in that the hydraulic slide (304) and second hydraulic cavities
(301B) spring (307A) is provided between inwall, the spring (307A) is stretched along the axial direction compression of the axis of traction (1)
Exhibition.
10. hook as claimed in claim 9, it is characterised in that the other end and a slide block (304A) of the push rod (308)
It is connected, and by the slide block (304A) with to the compressor arm (303) applying thrust.
11. hooks as claimed in claim 2, it is characterised in that the axis of traction (1) connects the one of the horn mouth (2)
End (16) is provided with two relative the first extensions (11) and the second extension (12), and first extension (11) and second prolongs
Be respectively equipped with a first through hole (111,121) in extending portion (12), two first through hole (111,121) with one heart, and this two
First axle (13) of the line of centres of individual first through hole (111,121) perpendicular to the axis of traction (1).
12. hooks as claimed in claim 11, it is characterised in that the horn mouth (2) can around the first through hole (111,
121) the line of centres is rotatably mounted on the axis of traction (1), two of the closing in end (22) and the axis of traction (1)
Extension (11,12) connects, and on two end faces (221) of the closing in end (22) third through-hole (222) is respectively arranged with,
Two third through-holes (222) are concentric with the first through hole (12),
Wherein, the first through hole (12) and the third through-hole (222) are for connecting the lock space (23) and the appearance
Between being empty (311).
13. hooks as claimed in claim 2, it is characterised in that the other end (14) of the axis of traction (1) also installs bearing
Component (5), the bearing assembly (5) is between first hydraulic cavities (301A) and the drive mechanism (3).
14. hooks as claimed in claim 13, it is characterised in that the bearing assembly (5) including bearing block (51), first
Cushion pad (561) and the second cushion pad (562),
First cushion pad (561), the bearing block (51), there is through hole for described on second cushion pad (562)
Axis of traction (1) is passed through, the bearing block (51) between the first cushion pad (561) and the second cushion pad (562), and described
One cushion pad (561) and second cushion pad (562) are in its pre-compressed state.
15. hooks as claimed in claim 14, it is characterised in that first cushion pad (561) and the bearing block
(51) retaining ring (57) is also set up between, there is through hole so that axis of traction (1) is passed through on the retaining ring (57).
16. hooks as claimed in claim 14, it is characterised in that second cushion pad (562) and the latch assembly
Between also set up taper washer (58), there is through hole to pass through for the axis of traction (1) on the taper washer (58).
17. hooks as described in any one of claim 1 to 16, it is characterised in that
The lock pin (4) includes curved portions (41) and cylindrical portion (42), and the external diameter of the curved portions (41) is more than the cylinder
The external diameter in shape portion (42), wherein,
The lock pin (4) is into the lock space (23) and through the through hole (91) of the bail (9), and the bail
(9) perpendicular to the lock pin (4) axial direction when, the outer wall of the curved portions (41) and the through hole (91) of the bail (9)
Minimum range t1 of inwall is less than the outer wall of the cylindrical portion (42) and the distance of through hole (91) inwall of the bail (9)
t。
18. a kind of traction apparatuss, it is characterised in that include：
Hook as described in any one of claim 1 to 17；And
Bail (9), with a through hole (91), passes through for the lock pin (4) of the hook, with the traction hook connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611170234.6A CN106671711B (en) | 2016-12-16 | 2016-12-16 | Traction hook and traction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611170234.6A CN106671711B (en) | 2016-12-16 | 2016-12-16 | Traction hook and traction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106671711A true CN106671711A (en) | 2017-05-17 |
| CN106671711B CN106671711B (en) | 2023-05-16 |
Family
ID=58870812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611170234.6A Active CN106671711B (en) | 2016-12-16 | 2016-12-16 | Traction hook and traction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106671711B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533024A (en) * | 2020-05-09 | 2020-08-14 | 吴婷婷 | Winch device for dragging automobile and using method thereof |
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| GB1467541A (en) * | 1975-04-29 | 1977-03-16 | Robinson R | Couplings for vehicles |
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| CN203557924U (en) * | 2013-06-19 | 2014-04-23 | 中国人民解放军军事交通学院 | Highway-railway dual-purpose tractor |
| CN204123914U (en) * | 2014-08-08 | 2015-01-28 | 约斯特（中国）汽车部件有限公司 | Trailer traction base |
| CN105824058A (en) * | 2015-01-23 | 2016-08-03 | 约斯特-韦克股份有限公司 | Coupling sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1467541A (en) * | 1975-04-29 | 1977-03-16 | Robinson R | Couplings for vehicles |
| US5320058A (en) * | 1992-12-22 | 1994-06-14 | Reed Waymon B | Self-contained boat launching assembly and methods |
| SE0002771L (en) * | 2000-07-26 | 2001-10-29 | Holmgren Sven Erik | Trailer coupling |
| CN1860043A (en) * | 2003-06-27 | 2006-11-08 | 罗尔工业公司 | Hitch coupling assembly which dampens the hunting |
| CN202242828U (en) * | 2011-10-13 | 2012-05-30 | 东风汽车有限公司 | Anti-drop device for full-hanging towing hook |
| CN203557924U (en) * | 2013-06-19 | 2014-04-23 | 中国人民解放军军事交通学院 | Highway-railway dual-purpose tractor |
| CN204123914U (en) * | 2014-08-08 | 2015-01-28 | 约斯特（中国）汽车部件有限公司 | Trailer traction base |
| CN105824058A (en) * | 2015-01-23 | 2016-08-03 | 约斯特-韦克股份有限公司 | Coupling sensor |
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| CN111533024A (en) * | 2020-05-09 | 2020-08-14 | 吴婷婷 | Winch device for dragging automobile and using method thereof |
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| Publication number | Publication date |
|---|---|
| CN106671711B (en) | 2023-05-16 |
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