CN207790229U - A kind of draft gear - Google Patents
A kind of draft gear Download PDFInfo
- Publication number
- CN207790229U CN207790229U CN201721927679.4U CN201721927679U CN207790229U CN 207790229 U CN207790229 U CN 207790229U CN 201721927679 U CN201721927679 U CN 201721927679U CN 207790229 U CN207790229 U CN 207790229U
- Authority
- CN
- China
- Prior art keywords
- draft gear
- hook
- coupler body
- sealed
- cylindrical portion
- 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.)
- Expired - Fee Related
Links
Landscapes
- Lock And Its Accessories (AREA)
Abstract
A kind of draft gear, it is related to the connector technical field of vehicle, the draft gear includes hook-shape body and sealed unit, wherein, hook-shape body has open coupler body, sealed unit and coupler body are pivotally connected, have between sealed unit and coupler body closing coupler body sealed connection status and being capable of self-sustaining unlatching connection status.In above-mentioned draft gear, sealed unit is pivotally connected with coupler body, the switching of sealed connection status/unlatching connection status can be realized by rotating lock in sealed unit and closing piece, and sealed unit is adjusted to above-mentioned self-sustaining unlatching connection status, closing piece is placed on the lug boss on the upside of coupler body, it carries out that/lock out operation is installed again, it is not necessary to while towed object and hook-shape body are taken into account, the safety for improving efficiency and using.
Description
Technical field
The utility model is related to the connector technical fields of vehicle, and in particular to a kind of draft gear.
Background technology
Hook-shape body in the draft gear in the prior art of part is simple hook-shaped, cannot form closed structure, lead
Drawing vehicle and towed object has unexpected separable danger, especially in the case where cross-country or road bumpiness is uneven.
Other draft gear in the prior art uses axis pin, split pin etc. and hook-shape body is connected as closing knot
Structure needs bending split pin that could realize dismounting/connection during attended operation, time-consuming and laborious.
Also some prior arts by spring structure realize hook-shape body closing, still, when applied to deadweight tonnage compared with
When big vehicle, hook-shape body needs enough mechanical strengths, at this point, hook-shape body and formed therewith enclosed construction component have compared with
Big weight and size, structure is again more compact, and design space is very limited, and spring is needed to have enough elastic forces that could realize
It is reliably connected, but when the elastic force of spring is larger, and is not easy to operating personnel's manual operation.
How to design a kind of suitable for the larger vehicle of deadweight tonnage, and can be realized by shirtsleeve operation towed
Object becomes technical problem urgently to be resolved hurrily with the draft gear for being reliably connected and detaching of hook-shape body.
Invention content
The utility model in view of the deficiencies of the prior art, provides a kind of draft gear, including：
Hook-shape body, including open coupler body；With
Sealed unit, the sealed unit are pivotally connected with the coupler body, have between the sealed unit and the coupler body
Have close the coupler body sealed connection status and being capable of self-sustaining unlatching connection status.
Preferably, the body of rod is connect by buffer cell with vehicle frame mounting plate, and the buffer cell includes that setting is passing
An at least flexible buffer block on power path.
Preferably, the sealed unit includes：
Lock is pivotally connected with the hook-shape body；And
Closing piece is connect with the latch pivot, and the free end of the closing piece is equipped with hook-holding part；
Lug boss is equipped on the upside of the coupler body, when the sealed unit is in sealed connection status with the coupler body, the hook
The portion of holding is locked in the side of the lug boss；The sealed unit is in hook-holding part when opening connection status with the coupler body
It is hooked in the other side of the lug boss.
Preferably, further include：
Plug together unit, when the sealed unit is in sealed connection status with the coupler body, be arranged on the lock first
Pin hole is overlapped with the second pin hole being arranged on the closing piece, and the unit that plugs together is across first pin hole and second pin
Hole.
Preferably, the unit that plugs together includes：
Body is plugged together, there is the first cylindrical portion and the second cylindrical portion, first cylindrical portion to be set to second cylindrical portion
The other end of one end, second cylindrical portion is equipped with and the block for plugging together body pivot connection.
Preferably, spring is arranged in second cylindrical portion, the spring is provided close to first cylindrical portion side.
Preferably, the flexible buffer block includes the first flexible buffer block and the second flexible buffer block, the buffer cell
Further include：
It is set to backing plate in the first outer backing plate and first of the first flexible buffer block both sides；
It is set to backing plate and the second outer backing plate in the second of the second flexible buffer block both sides；With
It is set to the fixed seat in backing plate and described second between backing plate in described first；
The vehicle frame mounting plate is set in described first between backing plate and the fixed seat.
Preferably, bushing is equipped in the annular space between the fixed seat and the body of rod, the bushing increases for glass
Strong material.
Preferably, the free end of the lock is equipped with support portion, and the sealed unit further includes：
Reed, one end are connect with the support portion, and the other end is connect with the closing piece, and the reed is for making the hook hold
Portion is rotated to the lug boss direction.
Preferably, the junction of the reed and the closing piece is equipped with circular curled portion, and the closing piece, which is equipped with, to be opened wide
Jack, the curled portion plugs together with the jack and connect.
Compared with the existing technology, the technical solution of the utility model has the advantages that：In above-mentioned draft gear,
Sealed unit and coupler body are pivotally connected, by rotating lock in sealed unit and sealed connection status/open can be realized in closing piece
The switching of connection status is opened, and sealed unit is adjusted to above-mentioned self-sustaining unlatching connection status, i.e., is placed in closing piece
On lug boss on the upside of coupler body, then carry out that/lock out operation is installed, it is not necessary to while towed object and hook-shape body are taken into account, improve effect
Rate and the safety used；When normal vehicle operation, above-mentioned sealed unit forms sealed connection status with coupler body, eliminates and leads
Draw the risk of vehicle and towed object accidental separation.
Further, relative to spring, the flexible buffer block in buffer cell is more suitable for the larger draft gear of load-carrying
In, solve impact it is larger when, buffer invalidation is pressed and caused to spring, and vibration is larger, and the technology for influencing vehicle service life is asked
Topic.
Further, plug together unit by across lock and closing piece pin hole realize lock and closing piece fixation, lock and
After closing piece is fixed as one, lug boss blocking lock and closing piece rotation are easy to operate, reliable to realize the sealed of coupler body
Property is higher.
Further, it plugs together the end face that the spring in unit can be retained stop and be latched and keeps connection, to avoid keeping off
Block rotates, and playing the role of prevents from plugging together unit deviates from from pin hole；Also, it is taken out from pin hole when needs will plug together unit
When, it is only necessary to the end face of the first cylindrical portion of Manual press, spring provide the rotation of block empty by compression certain distance
Between, then block is rotated to can will coaxially plug together unit with the second cylindrical portion and is extracted from pin hole, during extraction, bullet
Spring can also play the role of power-assisted, easy to operate.
Description of the drawings
Fig. 1 is the front view of the utility model draft gear.
Fig. 2 is the vertical view of the utility model draft gear.
Fig. 3 and Fig. 4 is that the utility model draft gear switches sealed/unlatching connection status process schematic.
Fig. 5 is to plug together unit assembling process schematic diagram in the utility model draft gear.
Fig. 6 is to plug together unit in the utility model draft gear
Reference sign
1- hook-shape bodies, 11- coupler bodies, 111- lug bosses, 112- locking parts, the holding parts 113-, the 12- bodies of rod；
The sealed units of 2-, 21- locks, the first pin holes of 211-, 212- support portions, the first pivots of 22-, 23- closing pieces, 231- are drawn
Hand, the second pin holes of 232-, 233- hook-holding parts, 234- jacks, the second pivots of 24-, 25- reeds, 251- curled portions；
3- plugs together unit, and 31- plugs together body, the first cylindrical portions of 311-, the second cylindrical portions of 312-, 313- groove profiles portion, 32- gears
Block, 33- springs, the first spirals of 331-, 34- chains；
4- buffer cells, the first outer backing plates of 41-, 42- the first flexible buffer blocks, backing plate in 43- first, 44- fixed seats,
45- bushings, backing plate in 46- second, 47- the second flexible buffer blocks, the second outer backing plates of 48-；
5- fasteners；
6- vehicle frame mounting plates.
Specific implementation mode
By explaining that the preferred embodiment of following the application, the other objects and advantages of the utility model will become clear
Chu.
Embodiment 1
Fig. 1 is the front view of the utility model draft gear.
As shown in Figure 1, a kind of draft gear, including hook-shape body 1 and sealed unit 2, wherein hook-shape body 1 has open
Coupler body 11, sealed unit 2 are pivotally connected with coupler body 11, have the sealed company of closing coupler body 11 between sealed unit 2 and coupler body 11
Connect state and being capable of self-sustaining unlatching connection status.
Preferably, above-mentioned as shown in Figure 1, hook-shape body 1 further includes the body of rod 12 being connected as one with above-mentioned coupler body 11
The body of rod 12 is connect by buffer cell 4 with vehicle frame mounting plate 6.
Specifically, as shown in Figure 1, sealed unit 2 includes lock 21 and closing piece 23, lock 21 passes through first with hook-shape body 1
Pivot 22 connects, and closing piece 23 is connect with lock 21 by the second pivot 24.
As shown in Figure 1, the free end of closing piece 23 is equipped with hook-holding part 233,11 upside of coupler body is equipped with lug boss 111, sealed list
When member 2 is in sealed connection status with coupler body 11, hook-holding part 233 is locked in the locking part 112 of the side of lug boss 111；Sealed list
Member 2 is in when opening connection status with coupler body 11, and hook-holding part 233 is hooked in the holding part 113 of the other side of lug boss 111.
As shown in Figure 1, the free end of lock 21 is equipped with support portion 212, sealed unit 2 further includes reed 25, reed 25
One end connect with support portion 212, the other end is connect with closing piece 23, and reed 25 is for making hook-holding part 233 to 111 direction of lug boss
Rotation.
It should be noted that the surface that above-mentioned support portion 212 is connected with reed 25 is arc, when pull-up closing piece 23 is inverse
When hour hands rotate, the end of reed 25 is slided along the surface of above-mentioned arc, counterclockwise the surface distance of the arc
Second pivot 24 is increasingly closer, and the angle that reed 25 is twisted increases, therefore the reed 25 can play and give closing piece 23 up time
The torsion of needle rotation.
For the connection type of reed 25 and closing piece 23, it is preferable that as shown in Figure 1 and Figure 4, the company of reed 25 and closing piece 23
It meets place and is equipped with circular curled portion 251, closing piece 23 is equipped with open jack 234, and curled portion 251 is plugged together with jack 234 and connect.
As shown in Figure 1, the draft gear of the present embodiment further includes plugging together unit 3, when sealed unit 2 is in sealed with coupler body 11
When connection status, the first pin hole 211 being arranged on lock 21 is overlapped with the second pin hole 232 being arranged on closing piece 23, plugs together unit 3
Across the first pin hole 211 and the second pin hole 232, being relatively fixed for lock 21 and closing piece 23 is realized.Preferably, above-mentioned to plug together list
Member 3 can be a cylinder, and the both ends of the cylinder are realized by structures such as nut or split pins to be fixed.
The course of work of the present embodiment is：Fig. 1 shows sealed connection status, as shown in Figure 1, will by plugging together unit 3
Lock 21 and closing piece 23 are fixed as one, and latching at this time can not relative motion, lock 21 and closing piece 23 between 21 and closing piece 23
It is only capable of rotating for axle center with the first pivot 22 in the form of whole, but since the hook-holding part of the free end of closing piece 23 233 is located at
In the locking part 112 in 111 left side of lug boss, which can stop that lock 21 and closing piece 23 rotate clockwise, that is,
It says, realizes above-mentioned sealed connection status.
As 2 to Fig. 4 show by sealed connection status adjust to open connection status process, as shown in Fig. 2, closing piece 23
Top knob 231 can be set in order to lifting closing piece 23.
It is extracted from the first pin hole 211 and the second pin hole 232 as shown in Fig. 2, unit 3 will be plugged together.
As shown in figure 3, pull above-mentioned knob 231 that lock 21 can be made to be rotated counterclockwise around the second pivot 24, reed 25
It is twisted certain angle, until hook-holding part 233 is deviate from from locking part 112.
As shown in figure 4, pulling on knob 231, lock 21 is rotated clockwise around the first pivot 22, when hook-holding part 233 is transported
When moving to the holding part 113 at 111 other side of lug boss, hook-holding part 233 is set to be hooked in extension 231 decentralization certain distance of knob
It holds in portion 113, under the twisting force of reed 25, hook-holding part 233 can not detach from holding part 113, that is, realize above-mentioned
Being capable of self-sustaining unlatching connection status.
The sealed unit 2 of the present embodiment adjusted to sealed connection status and above-mentioned process by unlatching connection status on the contrary,
It repeats no more.
In above-mentioned draft gear, sealed unit 2 is pivotally connected with coupler body 11, by rotating the lock in sealed unit 2
21 and closing piece 23 can be realized the switching of sealed connection status/unlatching connection status, and by sealed unit 2 adjust to it is above-mentioned from
Closing piece 23 is placed on the lug boss 111 of 11 upside of coupler body, then carries out towed object and lead by the unlatching connection status of holding
Draw installation/lock out operation of vehicle, it is not necessary to while towed object and hook-shape body 1 are taken into account, the safety for improving efficiency and using；Vehicle
When normally travel, above-mentioned sealed unit 2 forms sealed connection status with coupler body 11, eliminates tractor and anticipates with towed object
The risk of outer separation.
Embodiment 2
As shown in Figure 2, Figure 5 and Figure 6, in order to improve the joint efficiency for plugging together unit 3, the area of the present embodiment and embodiment 1
Be not the provision of a kind of preferred structure plugs together unit 3, and it includes plugging together body 31, spring 33 and block 32 that this, which plugs together unit 3,
In, body 31 is plugged together, there is the first cylindrical portion 311 and the second cylindrical portion 312, the first cylindrical portion 311 to be set to the second cylindrical portion 312
One end, the other end of the second cylindrical portion 312 are and the block 32 that plugs together the pivot connection of body 31.Only the central axis of block 32 with
When plugging together the central axis coincidence of body 31, it can will plug together unit 3 and be extracted from the first pin hole 211 and the second pin hole 232.It is excellent
Selection of land is arranged with spring 33 in the second cylindrical portion 312, and spring 33 is provided close to 311 side of the first cylindrical portion.
The end face holding connection that the spring 33 in unit 3 can retain stop 32 with lock 21 is plugged together, to avoid block
32 rotations, playing the role of prevents from plugging together unit 3 deviates from from pin hole；Also, it is taken from pin hole when needs will plug together unit 3
When going out, it is only necessary to which the end face of the first cylindrical portion of Manual press 311, spring 33 provide the rotation of block 32 by compression certain distance
Turn space, then the rotation of block 32 extremely can will coaxially be plugged together into unit 3 with the second cylindrical portion 312 and extracted from pin hole, is extracting
During, spring 33 can also play the role of power-assisted, easy to operate.
As preferred embodiment, one groove profile portion is set in the junction of the second cylindrical portion 312 and the first cylindrical portion 311
313, the groover rot diameter in the groove profile portion 313 is less than the external cylindrical surface diameter of the second cylindrical portion 312；Correspondingly, the of spring 33
Spring 33 is pushed to the second cylindrical surface along by the internal diameter of one spiral 331 again smaller than the external cylindrical surface diameter of the second cylindrical portion 312
Two cylindrical surfaces are slided, and 331 automatic clamping of the first spiral is placed in groove profile portion 313, are realized spring 33 and are plugged together the connection of body 31.Above-mentioned
Connection type can avoid spring 33 and slide or even fall off along the second cylindrical portion 312, meanwhile, spring 33 is not increasing with body 31 is plugged together
Being fixedly connected for the two is realized in the case of adding other parts.
Preferably, it is connect by chain 34 with the first pivot 22 as shown in Fig. 2, plugging together body 31, body 31 will be plugged together from pin hole
After middle extraction, it can lose to avoid unit 3 is plugged together, and convenient for taking.
Embodiment 3
The present embodiment and embodiment 1 difference lies in, present embodiments provide a kind of buffer cell 4 of preferred structure,
In, buffer cell 4 includes at least flexible buffer block being arranged in Path of Force Transfer.
Specifically, as shown in Figure 1, flexible buffer block is two, i.e. the first flexible buffer block 42 and the second flexible buffer block
47, buffer cell 4 further includes backing plate 43 in the first outer backing plate 41 and first for be set to 42 both sides of the first flexible buffer block；Setting
In backing plate 46 in the second of 47 both sides of the second flexible buffer block and the second outer backing plate 48；Be set to backing plate 43 and second in first
Fixed seat 44 between interior backing plate 46；Vehicle frame mounting plate 6 is set in first between backing plate 43 and fixed seat 44, in the body of rod 12
End set fastener 5, the fastener 5 are preferably hexagonal slotted nut.Flexible buffer block in buffer cell 4 is suitable for load-carrying
In larger draft gear.
Preferably, bushing 45 is equipped in the annular space between fixed seat 44 and the body of rod 12, bushing 45 is fiberglass reinforced material
Material, 45 wearability of bushing is preferable, improves the service life and cushion performance of draft gear.
The device of the application is described in detail with reference to the optimal technical scheme of the application, however, it is necessary to explanation, not
Be detached from spirit herein in the case of, those skilled in the art can be made on the basis of above disclosure it is any transformation,
Modification and variation.The application includes above-mentioned specific embodiment and its any equivalent form.
Claims (10)
1. a kind of draft gear, which is characterized in that including：
Hook-shape body has open coupler body；With
Sealed unit, the sealed unit are pivotally connected with the coupler body, have energy between the sealed unit and the coupler body
Enough close the coupler body sealed connection status and being capable of self-sustaining unlatching connection status.
2. draft gear according to claim 1, which is characterized in that the hook-shape body further includes being connect with the coupler body
The body of rod, the body of rod are connect by buffer cell with vehicle frame mounting plate, and the buffer cell includes being arranged in Path of Force Transfer
An at least flexible buffer block.
3. draft gear according to claim 1, which is characterized in that the sealed unit includes：
Lock is pivotally connected with the hook-shape body；And
Closing piece is connect with the latch pivot, and the free end of the closing piece is equipped with hook-holding part；
Lug boss is equipped on the upside of the coupler body, when the sealed unit is in sealed connection status with the coupler body, the hook-holding part
It is locked in the side of the lug boss；The sealed unit is in when opening connection status with the coupler body, and the hook-holding part hooks
In the other side of the lug boss.
4. draft gear according to claim 3, which is characterized in that further include：
Plug together unit, when the sealed unit is in sealed connection status with the coupler body, the first pin hole for being arranged on the lock
It is overlapped with the second pin hole being arranged on the closing piece, the unit that plugs together passes through first pin hole and second pin hole.
5. draft gear according to claim 4, which is characterized in that the unit that plugs together includes：
Body is plugged together, there is the first cylindrical portion and the second cylindrical portion, first cylindrical portion to be set to one end of second cylindrical portion,
The other end of second cylindrical portion is equipped with and the block for plugging together body pivot connection.
6. draft gear according to claim 5, which is characterized in that it is arranged with spring in second cylindrical portion, it is described
Spring is provided close to first cylindrical portion side.
7. draft gear according to claim 2, which is characterized in that the flexible buffer block includes the first flexible buffer block
With the second flexible buffer block, the buffer cell further includes：
It is set to backing plate in the first outer backing plate and first of the first flexible buffer block both sides；
It is set to backing plate and the second outer backing plate in the second of the second flexible buffer block both sides；With
It is set to the fixed seat in backing plate and described second between backing plate in described first；
The vehicle frame mounting plate is set in described first between backing plate and the fixed seat.
8. draft gear according to claim 7, which is characterized in that the annular between the fixed seat and the body of rod is empty
Interior to be equipped with bushing, the bushing is glass fiber reinforced materials.
9. draft gear according to claim 3, which is characterized in that the free end of the lock is equipped with support portion, institute
Stating sealed unit further includes：
Reed, one end are connect with the support portion, and the other end is connect with the closing piece, the reed for make the hook-holding part to
The lug boss direction rotates.
10. draft gear according to claim 6, which is characterized in that second cylindrical portion and first cylindrical portion
Junction setting groove profile portion；First spiral of the spring is connected together with the groove profile portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721927679.4U CN207790229U (en) | 2017-12-31 | 2017-12-31 | A kind of draft gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721927679.4U CN207790229U (en) | 2017-12-31 | 2017-12-31 | A kind of draft gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207790229U true CN207790229U (en) | 2018-08-31 |
Family
ID=63276827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721927679.4U Expired - Fee Related CN207790229U (en) | 2017-12-31 | 2017-12-31 | A kind of draft gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207790229U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016223A (en) * | 2017-12-31 | 2018-05-11 | 山东德方液压机械股份有限公司 | A kind of draw-gear |
| CN110254147A (en) * | 2019-06-04 | 2019-09-20 | 东风汽车集团有限公司 | A kind of rotatable rear dragging hitch with shock-absorbing function |
-
2017
- 2017-12-31 CN CN201721927679.4U patent/CN207790229U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016223A (en) * | 2017-12-31 | 2018-05-11 | 山东德方液压机械股份有限公司 | A kind of draw-gear |
| CN110254147A (en) * | 2019-06-04 | 2019-09-20 | 东风汽车集团有限公司 | A kind of rotatable rear dragging hitch with shock-absorbing function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207790229U (en) | A kind of draft gear | |
| CN108016223A (en) | A kind of draw-gear | |
| CN216235617U (en) | Automatic unhooking device | |
| CN208774501U (en) | A kind of fixed device of power battery pack and automobile | |
| CN205273478U (en) | Railway hopper car loading flap locking device | |
| CN201560640U (en) | Mini-car sliding door child lock mechanism | |
| CN207937496U (en) | A kind of energy consumption monitoring device | |
| CN208071262U (en) | A kind of manhole cover lifting device | |
| CN215904298U (en) | Quick locking mechanism of battery | |
| CN210852027U (en) | Locking mechanism and electric automobile | |
| CN110080638B (en) | Ratchet and pawl matching structure and military cross-country vehicle door lock with same | |
| CN209482929U (en) | A kind of pull-down zipper lock | |
| CN215717926U (en) | Door lock safety knob structure capable of preventing children from unlocking | |
| CN202952803U (en) | Connecting rod type opening mechanism for engineering vehicle cargo compartment back door | |
| CN2648002Y (en) | Mechanical type contact spring lock | |
| CN216589778U (en) | Chain mounting tool | |
| CN207644624U (en) | Propeller connection structure | |
| CN221726693U (en) | Model rocket structure with side umbrella | |
| CN215671647U (en) | Engine cover lock assembly mechanism universal for left rudder and right rudder | |
| CN201241543Y (en) | Automobile glass window lock catch assembly | |
| CN218369797U (en) | Locking mechanism for closing state of shielding door | |
| CN219931965U (en) | Engineering vehicle window with lifting limiting structure | |
| CN221609790U (en) | Locking device for door hinge of conditioner | |
| CN211569891U (en) | Wire rope quick assembly disassembly's fender rope mechanism | |
| CN207776658U (en) | A kind of rear molding safety door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20191231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |