CN206554144U - A kind of automatic fastening device of excavator and work accessory - Google Patents
A kind of automatic fastening device of excavator and work accessory Download PDFInfo
- Publication number
- CN206554144U CN206554144U CN201621115598.XU CN201621115598U CN206554144U CN 206554144 U CN206554144 U CN 206554144U CN 201621115598 U CN201621115598 U CN 201621115598U CN 206554144 U CN206554144 U CN 206554144U
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- Prior art keywords
- valve group
- link
- snapping valve
- excavator
- snapping
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Abstract
The utility model discloses the automatic fastening device of a kind of excavator and work accessory, it is related to construction machinery technical field, including upper link and lower link, rear locking pin and preceding locking pin are set respectively before and after lower link, the lower snapping valve group connected with work accessory hydraulic circuit is provided with the middle part of lower link, upper link inner chamber is provided with the upper snapping valve group connected with excavator hydraulic oil road, upper link front end sets the front claw tiger's jaw coordinated with preceding locking pin, rear end sets the arc-shaped claws coordinated with rear locking pin, upper link bottom sets locking device, upper link locks the rear locking pin of lower link by locking device and arc-shaped claws, the connection of link and lower link in realization, upper snapping valve group realizes that the hydraulic circuit of work accessory and excavator is turned on docking for lower snapping valve group.The utility model has the advantages that simple in construction, easy to operate, facilitates the connection of excavator and a variety of work accessories, realizes a tractor serves several purposes, the purpose of far distance automatic snapping.
Description
Technical field
The utility model is related to construction machinery technical field, more particularly to a kind of excavator and work accessory bales catch
Connection device.
Background technology
The today increasingly modernized in engineering machinery, hydraulic crawler excavator as it is a kind of be widely used, the work that adaptability is stronger
Journey machinery, with operate it is flexible, easy to use, digitlization, intelligentized feature, from traditional single digging operation of carry out to
Multi-function operation form changes.In order to meet user's different operating needs, need to be replaced as frequently as not in hydraulic crawler excavator construction
The work accessory of same type, such as bucket, grab bucket, hydraulic hammer, hydraulic rammer, hydraulic shear.The current excavator accessory that more changes jobs leads to
Frequently with manual type dismounting, connection pivot pin is installed, also had using simple and fast attachment means, but all needs artificial unloading's oil
Road, because the working clearance for the accessory that works is too small, and accessory deadweight is larger so that replacing labor intensity is big, time-consuming, causes work
Make work risk while inefficiency big.
Utility model content
Technical problem to be solved in the utility model is to provide the automatic fastening device of a kind of excavator and work accessory,
There is simple and compact for structure, with low cost, flexible and convenient operation, reliable operation；Under the operating mode for thering is pollution to have radiation,
Without human assistance can far distance automatic snapping, it is intelligent to realize mechanical automation, greatly reduces casualties.
In order to solve the above technical problems, technical solution adopted in the utility model is：
The automatic fastening device of a kind of excavator and work accessory, including upper link and lower link, the lower connection
It is respectively equipped with before and after frame and is provided with what is connected with work accessory hydraulic circuit in the middle part of rear locking pin and preceding locking pin, the lower link
Lower snapping valve group, the upper link inner chamber is provided with the upper snapping valve group that connect with excavator hydraulic oil road, upper snapping valve group and
Lower snapping valve group docking conducting excavator and the hydraulic circuit of work accessory, the upper link front end is provided with a pair and preceding locking
The arc-shaped claws of the front claw tiger's jaw coordinated, rear end provided with a pair with the cooperation of rear locking pin are sold, the upper link bottom is provided with
Locking device, the upper link locks the rear locking pin of lower link by locking device and arc-shaped claws.
It is preferred that, the upper snapping valve group includes housing and the pin end in housing, pin end and excavator liquid
Press oil communication；The lower snapping valve group includes housing and the female joint in housing, female joint and work accessory liquid
Press oil communication；Pin end cooperatively forms high-voltage high-speed with female joint and is connected valve group.
It is preferred that, the locking device includes the telescoping mechanism for being arranged on link bottom, and the telescoping mechanism is fixed
End is fixed on link rear portion, movable end and is provided with dead bolt, and the dead bolt is arranged on below arc-shaped claws, passes through dead bolt and arc
Claw locks rear locking pin.
It is preferred that, alignment pin is provided with the middle part of the upper snapping valve group, the lower snapping valve group coordinates with upper snapping valve group
Provided with the dowel hole with detent fit in the middle part of contact surface.
It is preferred that, the male joint of pin end is two pairs in the upper snapping valve group, is symmetrically arranged at alignment pin two
The female connector of correspondence male joint is also two pairs in female joint in side, the lower snapping valve group, male joint and female connector
Use cooperatively.
It is preferred that, the telescoping mechanism is hydraulic cylinder, and two dead bolts, hydraulic cylinder piston are symmetrically fixed in hydraulic cylinder body both sides
Bar is fixed in the middle part of a pair of front claw tiger's jaws of link front end.
It is preferred that, the lower snapping valve group is horizontally set in lower link, and close to rear locking pin side；The upper button
Valve group is connect to be horizontally set on below hydraulic cylinder body, docked by snapping valve group in hydraulic cylinder action drives with lower snapping valve group,
Drive locking pin after dead bolt clamping.
It is preferred that, the lower snapping valve group is vertically set in lower link, and the upper snapping valve group is vertically set on
In link, fall to making upper snapping valve group dock with lower snapping valve group by upper link.
It is preferred that, the arc-shaped claws rear portion is additionally provided with locking positioning track, and the dead bolt is set through locking positioning track
Put, the upper snapping valve group is arranged between the locking positioning track of link and front claw tiger's jaw.
It is preferred that, the butt end of the lower snapping valve group, which is provided with, can cover the dust excluding plate of female connector, the dust excluding plate
Upper end is connected by back-moving spring with lower link；Provided with the gap with detent fit in the middle part of the dust excluding plate.
It is using the beneficial effect produced by above-mentioned technical proposal：By upper link front end front claw tiger's jaw and lower connection
The preceding locking pin of frame coordinates, and upper link rear end arc-shaped claws and the rear locking pin of lower link rear end coordinate, and are filled by locking
Put cooperation arc-shaped claws will after lock pin locked, while upper link and lower link are connected on snapping valve group with
Snapping valve group also achieves a butt joint, and realizes that the hydraulic circuit of work accessory and excavator is turned on.The utility model has simple in construction
Compact, with low cost, flexible and convenient operation, the advantage of reliable operation, can facilitate the connection of excavator and a variety of work accessories, nothing
Human assistance is needed, a tractor serves several purposes, the purpose of far distance automatic snapping is realized.
Brief description of the drawings
In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with accompanying drawing to this practicality
It is new to be described in further detail, wherein：
Fig. 1 is the connection status of excavator and the automatic fastening device of work accessory that the utility model embodiment one is provided
Schematic diagram；
Fig. 2 is the connection procedure of excavator and the automatic fastening device of work accessory that the utility model embodiment two is provided
Schematic diagram；
Fig. 3 is the schematic diagram of upper link in Fig. 1；
Fig. 4 is the schematic diagram of lower link in Fig. 1；
Fig. 5 is the schematic diagram of upper link in Fig. 2；
Fig. 6 is the schematic diagram of lower link in Fig. 2；
Fig. 7 is the scheme of installation of dust excluding plate in lower snapping valve group；
Fig. 8 is Fig. 7 right view；
In figure：Detained on snapping valve group under locking pin before locking pin after link under the upper links of 1-, 2-, 3-, 4-, 5-, 6-
Connect valve group, 7- front claw tiger's jaws, 8- arc-shaped claws, 9- telescoping mechanisms, 10- dead bolts, 11- alignment pins, 12- locking positioning tracks,
13- pin thread joints, 14- box joints, 15- dust excluding plates, 16- back-moving springs, 17- gap, 18- dowel holes.
Embodiment
Below in conjunction with drawings and the specific embodiments, preferred embodiment of the present utility model is described in detail：Should
Understand, specific embodiment described herein only to explain the utility model, is not used to limit guarantor of the present utility model
Protect scope.
As shown in Figure 1, 2, the automatic fastening device of a kind of excavator that the utility model is provided and work accessory, including it is upper
Rear locking pin 3 and preceding locking pin 4, the lower link are respectively equipped with before and after link 1 and lower link 2, the lower link 2
2 middle parts are provided with the lower snapping valve group 5 connected with work accessory hydraulic circuit, and the upper inner chamber of link 1 is provided with and excavator liquid
The upper snapping valve group 6 of oil communication is pressed, upper snapping valve group 6 docks the liquid of conducting excavator and work accessory with lower snapping valve group 5
Road is pressed oil, the upper front end of link 1 is provided with a pair the front claw tiger's jaws 7 coordinated with preceding locking pin 4, rear ends and is provided with a pair with after
The arc-shaped claws 8 that locking pin 3 coordinates, the upper bottom of link 1 is provided with locking device, and the upper link 1 is filled by locking
Put the rear locking pin 3 that lower link 2 is locked with arc-shaped claws 8.
The front claw tiger's jaw 7 of the upper front end of link 1 and the preceding locking pin 4 of lower link 2 are coordinated, the upper rear end of link 1
Arc-shaped claws 8 and the rear locking pin 3 of the lower rear end of link 2 coordinate, and are locked rear locking pin 3 by locking device, at the same on connect
Upper snapping valve group 6 also achieves a butt joint with lower snapping valve group 5 while connecing frame 1 and the connection of lower link 2, realizes the liquid of work accessory
Press oil the conducting of road and excavator.Wherein, upper snapping valve group 6 include housing and the pin end in housing, pin end with
Excavator hydraulic oil road is connected；The lower snapping valve group 5 includes housing and the female joint in housing, female joint and work
Make the connection of accessory hydraulic circuit；Pin end cooperatively forms high-voltage high-speed with female joint and is connected valve group.High-voltage quick joint can root
According to purchase appropriate size model is actually needed, the quantity of wherein high-voltage quick joint is set as needed.
In a kind of preferred embodiment of the utility model, such as Fig. 3, the locking device includes being arranged under link 1
The telescoping mechanism 9 in portion, the fixing end of telescoping mechanism 9 is fixed on the front portion of link 1, movable end and is provided with dead bolt 10, the lock
Tongue 10 is arranged on the lower section of arc-shaped claws 8, first coordinates front claw tiger's jaw 7 with preceding locking pin 4, then pass through dead bolt 10 and arc-shaped claws
8 lock rear locking pin 3.Dead bolt 10 is stretched out by the action of telescoping mechanism 9, the both sides above and below with dead bolt 10 of arc-shaped claws 8
By the rear clamping of locking pin 3, so as to realize being connected for link 1 and lower link 2.
In order to improve the degree of accuracy that lower snapping valve group 5 coordinates with upper snapping valve group 6, the upper middle part of snapping valve group 6 is provided with
The positioning coordinated with alignment pin 11 is provided with the middle part of alignment pin 11, the contact surface that the lower snapping valve group 5 coordinates with upper snapping valve group 6
Pin-and-hole 18.
Because the type for the accessory that works is different, it is necessary to be equipped with single-direction and dual-direction switching system, so by public access in upper snapping valve group 6
The male joint 13 of head is designed as two pairs, is symmetrically arranged in the both sides of alignment pin 11, the lower snapping valve group 5 in female joint
The female connector 14 of correspondence male joint is also configured as two pairs, and male joint 13 is used cooperatively with female connector 14, makes pin end
Docked with female joint and to form high-voltage high-speed and be connected valve group.The accessories such as single oil piping system connection hydraulic breaking hammer, double oil piping systems connect
Connect the accessories such as hydraulic shear, gripping apparatus.
In a kind of specific embodiment of the utility model, the telescoping mechanism 9 is hydraulic cylinder, and hydraulic cylinder body both sides are symmetrical
Two dead bolts 10 are fixed, hydraulic cylinder piston rod is fixed on the middle part of a pair of front claw tiger's jaws 7 of the front end of link 1.With excavator
The hydraulic circuit of connection can be arranged on the side wall of link 1.
Embodiment one：Such as Fig. 1,3,4, upper snapping valve group 6 is front and rear snap fit, the lower snapping with lower snapping valve group 5
Valve group 5 is horizontally set in lower link 2, and close to the rear side of locking pin 3；The upper snapping valve group 6 is horizontally set on hydraulic pressure
Below cylinder cylinder body, docked by snapping valve group 6 in hydraulic cylinder action drives with lower snapping valve group 5, drive and locked after the clamping of dead bolt 10
Tight pin 3；The alignment pin 11 at the middle part of upper snapping valve group 6 is one, and two pairs of male joints 13 are separately positioned on 11 liang of alignment pin
Side.
The embodiment connection procedure is as follows：The preceding locking pin that the preceding locking tiger's jaw 7 of upper link 1 is caught on into lower link leads to
Crossing excavator action makes arc-shaped claws 8 be fitted with locking pin 3 after lower link 2, passes through Driven by Hydraulic Cylinder cylinder body horizontal shift, band
Dynamic connected upper snapping valve group 6 displacement fixed thereto is docked with lower snapping valve group 5, realizes hydraulic circuit and the excavation of work accessory
The oil circuit conducting of machine, while the connected horizontal shift of dead bolt 10 fixed thereto is driven, after being locked using dead bolt 10 and arc-shaped claws 8
Locking pin 3, excavator and the connection of work accessory and the conducting of oil circuit of realization.
Embodiment two：Such as Fig. 2,5,6, upper snapping valve group 6 and lower snapping valve group 5 are snap fit before and after up and down, it is described under
Snapping valve group 5 be vertically set in lower link 2 and lower snapping valve group 5 female connector 14 upward, the upper snapping valve group 6
Be vertically set in link 1 and upper snapping valve group 6 male joint 13 down, fall to making upper snapping by upper link 1
Valve group 6 is docked with lower snapping valve group 5；The alignment pin 11 at the middle part of upper snapping valve group 6 is two be set up in parallel, two pairs of pin threads
Joint 13 is disposed in parallel in the both sides of two alignment pins 11 respectively.
The embodiment connection procedure is as follows：Locking pin 4 before the front claw tiger's jaw 7 of upper link 1 is caught on, passes through excavator
Action makes link 1 push the rear locking pin 3 for making arc-shaped claws be adjacent to lower connector 2 while making snapping valve group 6 and lower button
Connect valve group 5 to dock, with the whereabouts of upper link 1, realize that the hydraulic circuit of work accessory and the oil circuit of excavator are turned on；Separately
Outside, by Driven by Hydraulic Cylinder cylinder body horizontal shift, the connected horizontal shift of dead bolt 10 fixed thereto is driven, dead bolt 10 and arc is utilized
Locking pin 3 after shape claw 8 is locked, excavator and the connection of work accessory and the conducting of oil circuit of realization.
In order to improve the guiding accuracy and steadiness of arc-shaped claws 8, the rear portion of arc-shaped claws 8 is additionally provided with locking positioning
Track 12, the dead bolt 10 is set through locking positioning track 12, and the upper snapping valve group 6 is arranged on the locking of link 1
Between positioning track 12 and front claw tiger's jaw 7.
In one preferred embodiment of the utility model, such as Fig. 7,8, by taking lower connector 2 in embodiment one as an example, it is described under
The butt end of snapping valve group 5 is provided with that can cover the dust excluding plate 15 of female connector 14, and the upper end of dust excluding plate 15 is by resetting bullet
Spring 16 is connected with lower link 2；The middle part of dust excluding plate 15 is provided with the gap 17 coordinated with alignment pin 11.Upper snapping valve group 6 with
When lower snapping valve group 5 is docked, the tip of alignment pin 11 is firstly inserted into gap 17, with the propulsion of alignment pin 11, by dust excluding plate 15
The male joint 13 and lower snapping in the female connector 14 on the lower interface of snapping valve group 5, convenience in snapping valve group 6 are exposed in jacking
Female connector 14 in valve group 5 is connected, and turns on the check valve in lower snapping valve group 5, so as to realize the hydraulic oil of work accessory
The oil circuit conducting of road and excavator.Using dust excluding plate 15 female connector 14 in lower snapping valve group 5 can be avoided to be contaminated, shadow
Snapping valve group 6 and lower snapping valve group 5 uses cooperatively on sound.
Operation principle labor of the present utility model is as follows：
The front claw tiger's jaw 7 of upper link 1 and the preceding locking pin 4 of lower link 2 are coordinated, the upper rear end arc of link 1
Claw 8 and the rear locking pin 3 of the lower rear end of link 2 coordinate, and are moved forward by Driven by Hydraulic Cylinder dead bolt 10, and dead bolt 10 coordinates arc card
Pawl 8 locks rear locking pin 3；While upper link 1 and lower link 2 are connected, the alignment pin 11 at the upper middle part of snapping valve group 6
With the dowel hole 18 at the middle part of lower snapping valve group 5 coordinates, male joint 13 coordinates with female connector 14, in lower snapping valve group 5
Check valve is turned on, and realizes that the hydraulic circuit of work accessory and the oil circuit of excavator are turned on.
In summary, the utility model has simple and compact for structure, with low cost, flexible and convenient operation, reliable operation
Advantage, particularly with existing under the special operation conditions such as pollution, radiation, can realize the button with the accessory that works by Remote excavator
Connect, harm of the adverse circumstances to personnel can be substantially reduced, protection staff is healthy, meets the market demand.Utilize this
Utility model can facilitate the connection of excavator and a variety of work accessories, without human assistance, realize a tractor serves several purposes, far distance automatic
The purpose of snapping.
Specific case used herein is set forth to principle of the present utility model and embodiment, above example
Explanation be only intended to help and understand method of the present utility model and its core concept, be not limited to the utility model.Should
, for those skilled in the art, can be with the premise of the utility model principle is not departed from when pointing out
Some improvement and modification are carried out to the utility model, these are improved and modification also falls into the protection model of the utility model claim
In enclosing.
Claims (10)
1. the automatic fastening device of a kind of excavator and work accessory, it is characterised in that：Including upper link（1）With lower link
（2）, the lower link（2）It is front and rear to be respectively equipped with rear locking pin（3）With preceding locking pin（4）, the lower link（2）Middle part is set
There is the lower snapping valve group connected with work accessory hydraulic circuit（5）, the upper link（2）Inner chamber is provided with and excavator hydraulic oil
The upper snapping valve group of road connection（6）, upper snapping valve group（6）With lower snapping valve group（5）Docking conducting excavator and work accessory
Hydraulic circuit, the upper link（1）Front end is provided with a pair and preceding locking pin（4）The front claw tiger's jaw of cooperation（7）, rear end is provided with
A pair and rear locking pin（3）The arc-shaped claws of cooperation（8）, the upper link（1）Bottom is provided with locking device, the upper connection
Frame（1）Pass through locking device and arc-shaped claws（8）Lock lower link（2）Rear locking pin（3）.
2. the automatic fastening device of a kind of excavator according to claim 1 and work accessory, it is characterised in that：On described
Snapping valve group（6）Pin end including housing and in housing, pin end is connected with excavator hydraulic oil road；The lower button
Connect valve group（5）Include housing and the female joint in housing, female joint is connected with work accessory hydraulic circuit；Pin end
High-voltage quick joint is cooperatively formed with female joint.
3. the automatic fastening device of a kind of excavator according to claim 1 and work accessory, it is characterised in that：The lock
Tight device includes being arranged on link（1）The telescoping mechanism of bottom（9）, the telescoping mechanism（9）Fixing end is fixed on company
Connect frame（1）Rear portion, movable end are provided with dead bolt（10）, the dead bolt（10）It is arranged on arc-shaped claws（8）Lower section, passes through dead bolt（10）
With arc-shaped claws（8）Lock rear locking pin（3）.
4. the automatic fastening device of a kind of excavator according to claim 2 and work accessory, it is characterised in that：On described
Snapping valve group（6）Middle part is provided with alignment pin（11）, the lower snapping valve group（5）With upper snapping valve group（6）In the contact surface of cooperation
Portion is provided with and alignment pin（11）The dowel hole of cooperation（18）.
5. the automatic fastening device of a kind of excavator according to claim 4 and work accessory, it is characterised in that：On described
Snapping valve group（6）The male joint of middle pin end（13）For two pairs, alignment pin is symmetrically arranged at（11）Both sides, the lower button
Connect valve group（5）Correspondence male joint in middle female joint（13）Female connector（14）Also it is two pairs, male joint（13）With box
Joint（14）Use cooperatively.
6. the automatic fastening device of a kind of excavator and work accessory according to claim 3 any claim, it is special
Levy and be：The telescoping mechanism（9）For hydraulic cylinder, two dead bolts are symmetrically fixed in hydraulic cylinder body both sides（10）, hydraulic cylinder piston
Bar is fixed on link（1）A pair of front claw tiger's jaws of front end（7）Middle part.
7. the automatic fastening device of a kind of excavator according to claim 6 and work accessory, it is characterised in that：Under described
Snapping valve group（5）It is horizontally set on lower link（2）It is interior, and close to rear locking pin（3）Side；The upper snapping valve group（6）Water
It is flat to be arranged on below hydraulic cylinder body, pass through snapping valve group in hydraulic cylinder action drives（6）With lower snapping valve group（5）Docking, drive
Dynamic dead bolt（10）Locking pin after clamping（3）.
8. the automatic fastening device of a kind of excavator according to claim 6 and work accessory, it is characterised in that：Under described
Snapping valve group（5）It is vertically set on lower link（2）It is interior, the upper snapping valve group（6）It is vertically set on link（1）It is interior,
Pass through upper link（1）Whereabouts makes snapping valve group（6）With lower snapping valve group（5）Docking.
9. the automatic fastening device of a kind of excavator according to claim 3 and work accessory, it is characterised in that：The arc
Shape claw（8）Rear portion is additionally provided with locking positioning track（12）, the dead bolt（10）Through locking positioning track（12）Set, it is described
Upper snapping valve group（6）It is arranged on link（1）Locking positioning track（12）With front claw tiger's jaw（7）Between.
10. the automatic fastening device of a kind of excavator according to claim 5 and work accessory, it is characterised in that：It is described
Lower snapping valve group（5）Butt end provided with female connector can be covered（14）Dust excluding plate（15）, the dust excluding plate（15）Upper end
Pass through back-moving spring（16）With lower link（2）It is connected；The dust excluding plate（15）Middle part is provided with and alignment pin（11）What is coordinated slits
Mouthful（17）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621115598.XU CN206554144U (en) | 2016-10-12 | 2016-10-12 | A kind of automatic fastening device of excavator and work accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621115598.XU CN206554144U (en) | 2016-10-12 | 2016-10-12 | A kind of automatic fastening device of excavator and work accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206554144U true CN206554144U (en) | 2017-10-13 |
Family
ID=60369518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621115598.XU Withdrawn - After Issue CN206554144U (en) | 2016-10-12 | 2016-10-12 | A kind of automatic fastening device of excavator and work accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206554144U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284460A (en) * | 2016-10-12 | 2017-01-04 | 北京东光嘉和机械设备有限公司 | A kind of excavator and the bales catch connection device of work accessory |
| CN111360831A (en) * | 2020-03-18 | 2020-07-03 | 南华大学 | Remote reloading system and method for end tool of nuclear decommissioning robot |
| CN112854328A (en) * | 2021-04-26 | 2021-05-28 | 徐州徐工挖掘机械有限公司 | Hydraulic drive's excavator accessory quick connector and excavator |
| CN113463703A (en) * | 2021-06-16 | 2021-10-01 | 深圳市先进智能技术研究所 | Manipulator with hydraulic quick-change connector |
-
2016
- 2016-10-12 CN CN201621115598.XU patent/CN206554144U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284460A (en) * | 2016-10-12 | 2017-01-04 | 北京东光嘉和机械设备有限公司 | A kind of excavator and the bales catch connection device of work accessory |
| CN111360831A (en) * | 2020-03-18 | 2020-07-03 | 南华大学 | Remote reloading system and method for end tool of nuclear decommissioning robot |
| CN112854328A (en) * | 2021-04-26 | 2021-05-28 | 徐州徐工挖掘机械有限公司 | Hydraulic drive's excavator accessory quick connector and excavator |
| CN112854328B (en) * | 2021-04-26 | 2021-07-13 | 徐州徐工挖掘机械有限公司 | Hydraulic drive's excavator accessory quick connector and excavator |
| CN113463703A (en) * | 2021-06-16 | 2021-10-01 | 深圳市先进智能技术研究所 | Manipulator with hydraulic quick-change connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171013 Effective date of abandoning: 20190319 |