CN109292687A - A kind of turnover mechanism for installing hydraulic pilot handle on fork truck - Google Patents
A kind of turnover mechanism for installing hydraulic pilot handle on fork truck Download PDFInfo
- Publication number
- CN109292687A CN109292687A CN201811319483.6A CN201811319483A CN109292687A CN 109292687 A CN109292687 A CN 109292687A CN 201811319483 A CN201811319483 A CN 201811319483A CN 109292687 A CN109292687 A CN 109292687A
- Authority
- CN
- China
- Prior art keywords
- plate
- movable support
- hydraulic pilot
- support mechanism
- handle
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/0759—Details of operating station, e.g. seats, levers, operator platforms, cabin suspension
Abstract
The present invention relates to a kind of on fork truck installs the turnover mechanism of hydraulic pilot handle.Including fixed bracket institution, movable support mechanism and hydraulic pilot handle；Fixed bracket institution is set on the instrument calibration of fork truck, including fixed plate side plate disposed in parallel identical with a pair of of structure；Movable support mechanism includes handle setting plate L shaped plate disposed in parallel identical with a pair of of structure；Hydraulic pilot handle is fixedly mounted on handle setting plate；Fixed bracket institution and movable support mechanism are flexibly connected, and the relatively fixed bracket institution of movable support mechanism realizes overturning.When work, the horizontal locking of movable support mechanism is placed；When parking, the locking of movable support mechanism is released, movable support mechanism is overturn to the instrument calibration side of fork truck, realizes the overturning of an angle of 90 degrees；Driver is facilitated to get on the bus or get off on the right side of seat；When maintenance, hood is then opened, that is, is convenient to carry out the inspection operation of vehicle.
Description
Technical field
The present invention relates to the hydraulic systems of fork truck, and in particular to a kind of for installing the turnover mechanism of hydraulic pilot handle.
Background technique
With the progress of forklift hydraulic system technology, present forklift hydraulic system especially multi-way valve mostly uses hydraulic pilot
Control pushes multi-way valve main valve plug to move, and then realizes the movement of the corresponding accessory of fork truck using the hydraulic energy of a lower pressure,
Including a hydraulic pilot handle.Existing hydraulic pilot handle more be fixed on beside driver's seat a certain position (such as
On the right side of seat), since hydraulic pilot handle position is fixed, there are following two points defects: 1. influence the related check man of fork truck
Make；2. influencing driver's getting on the bus on the right side of seat and getting off.
Summary of the invention
In order to realize the convenient position adjustment of hydraulic pilot handle, the present invention provides a kind of for installing hydraulic elder generation on fork truck
Lead the turnover mechanism of handle.
A kind of turnover mechanism that installing hydraulic pilot handle on fork truck includes fixed bracket institution, movable support mechanism
With hydraulic pilot handle；
The fixed bracket institution includes fixed plate side plate disposed in parallel identical with a pair of of structure, and the fixed bracket institution is logical
Fixed plate is crossed to be fixed on the instrument calibration of fork truck；
The movable support mechanism includes handle setting plate L shaped plate disposed in parallel identical with a pair of of structure；The hydraulic pilot
Handle is fixedly mounted on the handle setting plate of movable support mechanism；
The fixed bracket institution is flexibly connected a pair of L-shaped plate of movable support mechanism by a pair of side plates；Movable support machine
The relatively fixed bracket institution of structure realizes overturning；
When work, oil inlet, oil outlet on the hydraulic pilot handle are connected to the guide oil of multi-way valve by high-pressure rubber pipe
Mouthful；Turnover bracket is horizontal positioned, and by positioning lockable mechanism locking, driver controls multi-way valve by hydraulic pilot handle,
It realizes and controls entire hydraulic system；
When parking or maintenance, release the locking of movable support mechanism, make the relatively fixed bracket institution of movable support mechanism overturn to
The instrument calibration side of fork truck, realizes the overturning of an angle of 90 degrees；By the overturning of movable support mechanism, facilitate the inspection operation of vehicle,
Driver is facilitated to get on the bus or get off on the right side of seat simultaneously.
The technical solution further limited is as follows:
The fixed bracket institution includes fixed plate 8, right side plate 9, left plate 10 and dowel mechanism；The right side plate 9 and a left side
Side plate 10 is a pair of of strip side plate that structure is identical, parallel, and one end of right side plate 9 and one end of left plate 10 are fixedly connected with
Fixed plate 8 between the top margin at the middle part at the middle part and left plate 10 of right side plate 9, is respectively equipped with stiffening plate 7 between bottom edge；Right side
Coaxial pin hole is offered on the other end of plate 9 and respectively on the other end of left plate 10, is equipped with bolt 4 with pin hole cooperation；It is right
Location hole 92 and lower Positioning holes 93 are also provided on the other end of side plate 9, the upper location hole 92 and lower Positioning holes 93 are distinguished
With the detent fit of positioning lockable mechanism, the overturning positioning of movable support mechanism is realized；The positioning lockable mechanism, which is set to, lives
On dynamic bracket institution.
The movable support mechanism includes the identical left L shaped plate 11 disposed in parallel of a pair of of structure and right L shaped plate 12, left L shape
It is fixedly connected between the short end of plate 11 and the short end of right L shaped plate 12 by handle setting plate 15, on the outside of the short side of left L shaped plate 11
On the outside of the short side of right L shaped plate 12 between support plate 14 be fixedly connected, the long side of the long side of left L shaped plate 11 and right L shaped plate 12 it
Between be fixedly connected by upper sealing plate 13, and handle setting plate 15 is parallel to upper sealing plate 13.Mounting hole is offered on handle setting plate 15,
Hydraulic pilot handle correspondence is fixed on the handle setting plate 15 at mounting hole.
The positioning lockable mechanism includes positioning pin 19, hold-down support 5 and reset spring 18；One end of positioning pin 19 is work
Make end, other end operating side；The operating side of positioning pin 19 is connected through a screw thread operation handle 16, and 19 middle part activity of positioning pin is inserted
It is located in nut 17 and hold-down support 5, the working end of positioning pin 19 extends to outside hold-down support 5；Nut 17 is connected through a screw thread
One end of hold-down support 5, the other end of hold-down support 5 are fixed on one block of side plate of movable support mechanism；Reset spring 18
It is sheathed on the positioning pin 19 in hold-down support 5.
Right side plate 9, the left plate 10 of the fixed bracket institution are located at the outer of a pair of L-shaped plate of the movable support mechanism
Side；Washer, the pin between left plate 10 and corresponding L shaped plate are arranged on pin shaft 4 between right side plate 9 and corresponding L shaped plate
Washer is arranged on axis 4.
The washer is nylon washer.
The pin hole end side of the right side plate 9 of the fixed bracket institution and the pin hole end side of left plate 10 are bent up
Folding；Stiffening plate, the bottom of 9 bending place of right side plate are equipped between the top margin of the bending of the top margin and left plate 10 of 9 bending place of right side plate
Stiffening plate is equipped between the bottom edge of 10 bending place of side and left plate.
The short side of the short side of the left L shaped plate 11 of the movable support mechanism and the outside junction of long side and right L shaped plate 12
Outside junction with long side is arc transition side.
The reset spring 18 is pressure spring.
The present invention has the advantages that following aspect compared with prior art products:
1, hydraulic pilot handle of the invention is fixedly mounted in movable support mechanism, and movable support mechanism is significantly overturn
Realize the convenient position adjustment of hydraulic pilot handle, it is easy to operate.
2, hydraulic pilot handle realizes convenient position adjustment, convenient for the inspection operation of vehicle, while facilitating personnel from seat
It gets on the bus or gets off in position right side.
Detailed description of the invention
Fig. 1 is state diagram when structure of the invention is installed to normal use on car body;
Fig. 2 is structure of the invention figure；
Fig. 3 is the top view of structure of the invention；
Fig. 4 is the partial enlarged view that Tu2Zhong movable support mechanism 2 is in lockup state；
Fig. 5 is the partial enlarged view that Tu2Zhong movable support mechanism 2 is in rollover states；
Fig. 6 is the partial enlarged view II of Fig. 2；
Fig. 7 is support bracket fastened structure chart in the present invention；
Fig. 8 is the structure chart of movable support mechanism in the present invention；
Fig. 9 is that structure of the invention is installed on car body, state diagram when personnel get on and off from right side；
Figure 10 is that structure of the invention is installed on car body, the state diagram in maintenance.
Serial number in upper figure: fixed bracket institution 1, movable support mechanism 2, lower sealing plate 3, handle 31, pin shaft 4, hold-down support
5, lockable mechanism 6, stiffening plate 7, fixed plate 8, right side plate 9, pin hole 91, upper location hole 92, lower Positioning holes 93, left plate are positioned
10, left L shaped plate 11, right L shaped plate 12, upper sealing plate 13, support plate 14, handle setting plate 15, operation handle 16, nut 17, reset
Spring 18, positioning lock pin 19, washer 20, instrument calibration 22, pilot handle 23, hood 24, seat 25, multi-way valve 26, high-pressure glue
Pipe 27.
Specific embodiment
With reference to the accompanying drawing, the present invention is further described by embodiment.
Referring to Fig. 1, a kind of turnover mechanism that installing hydraulic pilot handle on fork truck includes fixed bracket institution 1, living
Dynamic bracket institution 2 and hydraulic pilot handle 23.
Referring to Fig. 7, fixed bracket institution 1 includes fixed plate 8, right side plate 9, left plate 10 and dowel mechanism.Right side plate 9
It is identical, parallel a pair of of the strip side plate of structure, the fixed company in one end of right side plate 9 and one end of left plate 10 with left plate 10
Then fixed plate 8.Fixed bracket institution 1 is fixedly installed on the instrument calibration 22 of fork truck by fixed plate 8.Right side plate 9 it is another
Coaxial pin hole 91 is offered on end and respectively on the other end of left plate 10, bolt 4 is housed with the cooperation of pin hole 91, sees Fig. 2.It is right
The pin hole end side of side plate 9 and the pin hole end side of left plate 10 are folded upward at；The top margin and left plate of 9 bending place of right side plate
Stiffening plate 7 is installed, between the bottom edge of 10 bending place of bottom edge and left plate of 9 bending place of right side plate between the top margin of 10 bending
Stiffening plate is installed.It is also provided with location hole 92 and lower Positioning holes 93 on the pin hole end of right side plate 9, referring to Fig. 3, upper location hole
92 and positioning lock pin 19 of the lower Positioning holes 93 respectively with positioning lockable mechanism 6 cooperate, realize that the overturning of movable support mechanism 2 is fixed
Position.Referring to fig. 2, positioning lockable mechanism 6 is installed in movable support mechanism 2.
Referring to Fig. 8, movable support mechanism 2 includes the identical left L shaped plate 11 disposed in parallel of a pair of of structure and right L shaped plate 12,
Be fixedly connected between the short end of left L shaped plate 11 and the short end of right L shaped plate 12 by handle setting plate 15, left L shaped plate 11 it is short
It is fixedly connected between on the outside of side and on the outside of the short side of right L shaped plate 12 by support plate 14, the long side and right L shaped plate 12 of left L shaped plate 11
Long side between be fixedly connected by upper sealing plate 13, and handle setting plate 15 is parallel to upper sealing plate 13；The short side and length of left L shaped plate 11
While outside junction and the short side of right L shaped plate 12 and the outside junction of long side be arc transition while.Handle setting plate 15
On offer mounting hole, hydraulic pilot handle 23 is fixedly installed on the handle setting plate 15 at mounting hole.With hydraulic pilot hand
Pass through lower 3 mounting knob 31 of sealing plate in the corresponding movable support mechanism 2 of handle 23.
Referring to fig. 2, right side plate 9, the left plate 10 of fixed bracket institution 1 are located at a pair of L-shaped plate of movable support mechanism 2
Outside is flexibly connected fixed bracket institution 1 and movable support mechanism 2 by bolt 4.Referring to Fig. 6, right side plate 9 and corresponding L
Washer 20 is set on pin shaft 4 on pin shaft 4 between shape plate, between left plate 10 and corresponding L shaped plate, washer 20 is Buddhist nun
Imperial washer.
Referring to fig. 4, positioning lockable mechanism 6 includes operation handle 16, nut 17, positioning lock pin 19, hold-down support 5 and answers
Position spring 18.The one end for positioning lock pin 19 is working end, other end operating side.The operating side of positioning lock pin 19 passes through screw thread
It is connected to operation handle 16, positioning 19 middle part activity of lock pin is plugged in nut 17 and hold-down support 5, positioning lock pin 19
Working end extends to outside hold-down support 5；Nut 17 is connected through a screw thread one end of hold-down support 5, and the other end of hold-down support 5 is solid
Fig. 8 sees loaded in the right L shaped plate 12 of movable support mechanism in Dingan County；Reset spring 18 is set in the positioning locking in hold-down support 5
On pin 19, reset spring 18 is pressure spring.
When work, referring to Fig. 1,23 oil inlet, oil outlet are connected to more by high-pressure rubber pipe 27 on hydraulic pilot handle
Guide's hydraulic fluid port of road valve 26.Turnover bracket is horizontal positioned, and is locked by positioning lockable mechanism 6, at this time on hydraulic pilot handle
23 is relatively close apart from seat 25, more cosily operates hydraulic pilot handle 23 convenient for driver, is realized and controlled by multi-way valve 26
Entire hydraulic system.
When parking, referring to Fig. 5, by drawing operation handle 16, make to position the fixed bracket institution 1 of the disengaging of lock pin 19, solution
Except the locking of movable support mechanism 2；Movable support mechanism 2 can be lifted by handle 31, keep movable support mechanism 2 relatively fixed
The overturning of bracket institution 1 realizes the overturning of an angle of 90 degrees, sees Fig. 9, then pass through positioning 19 He of lock pin to 22 side of instrument calibration of fork truck
The cooperation of upper locking hole 92, fixes movable support mechanism 2, and driver is facilitated to get on the bus or get off on the right side of seat.
When needing to overhaul, referring to Figure 10, Xian Shi movable support mechanism 2 is overturn, and is then opened hood 24, is facilitated the inspection of vehicle
Repair operation.
Claims (9)
1. a kind of turnover mechanism for installing hydraulic pilot handle on fork truck, it is characterised in that: including fixed bracket institution, turn over
Turn bracket institution and hydraulic pilot handle；
The fixed bracket institution includes fixed plate side plate disposed in parallel identical with a pair of of structure, and the fixed bracket institution is logical
Fixed plate is crossed to be fixed on the instrument calibration (22) of fork truck；
The movable support mechanism includes handle setting plate (15) L shaped plate disposed in parallel identical with a pair of of structure；It is described hydraulic
Pilot handle is fixedly mounted on the handle setting plate (15) of movable support mechanism；
The fixed bracket institution is flexibly connected a pair of L-shaped plate of movable support mechanism by a pair of side plates；Movable support machine
The relatively fixed bracket institution of structure realizes overturning；
When work, oil inlet, oil outlet on the hydraulic pilot handle are connected to the guide oil of multi-way valve by high-pressure rubber pipe
Mouthful；Movable support mechanism is horizontal positioned, and by positioning lockable mechanism locking, driver controls multichannel by hydraulic pilot handle
Valve is realized and controls entire hydraulic system；
When parking or maintenance, release the locking of movable support mechanism, make the relatively fixed bracket institution of movable support mechanism overturn to
Instrument calibration (22) side of fork truck, realizes the overturning of an angle of 90 degrees；By the overturning of movable support mechanism, the maintenance of vehicle is facilitated to grasp
Make, while driver being facilitated to get on the bus or get off on the right side of seat.
2. a kind of turnover mechanism for installing hydraulic pilot handle on fork truck according to claim 1, it is characterised in that:
The fixed bracket institution includes fixed plate (8), right side plate (9), left plate (10) and dowel mechanism；The right side plate (9)
It is identical, parallel a pair of of the strip side plate of structure with left plate (10), one end of right side plate (9) and one end of left plate (10) are equal
It is fixedly connected fixed plate (8), distinguishes between the top margin at the middle part at the middle part and left plate (10) of right side plate (9), between bottom edge
Equipped with stiffening plate (7)；Coaxial pin hole is offered on the other end of right side plate (9) and respectively on the other end of left plate (10),
Pin shaft (4) are equipped with pin hole cooperation；Location hole (92) and lower Positioning holes (93) are also provided on the other end of right side plate (9),
The upper location hole (92) and lower Positioning holes (93) detent fit with positioning lockable mechanism respectively, realize movable support mechanism
Overturning positioning；The positioning lockable mechanism is set in movable support mechanism.
3. a kind of turnover mechanism for installing hydraulic pilot handle on fork truck according to claim 1, it is characterised in that:
The movable support mechanism includes a pair of of identical left L shaped plate (11) disposed in parallel of structure and right L shaped plate (12), left L shaped plate
(11) be fixedly connected between the short end of short end and right L shaped plate (12) by handle setting plate (15), left L shaped plate (11) it is short
It is fixedly connected between on the outside of side and on the outside of the short side of right L shaped plate (12) by support plate (14), the long side of left L shaped plate (11) and right L
It is fixedly connected between the long side of shape plate (12) by upper sealing plate (13), and handle setting plate (15) is parallel to upper sealing plate (13)；It is described
Mounting hole, the corresponding handle setting plate being fixed at mounting hole of the hydraulic pilot handle are offered on handle setting plate (15)
(15) on.
4. a kind of turnover mechanism for installing hydraulic pilot handle on fork truck according to claim 1, it is characterised in that:
The positioning lockable mechanism includes positioning pin (19), hold-down support (5) and reset spring (18)；One end of positioning pin (19) is work
Make end, other end operating side；The operating side of positioning pin (19) is connected through a screw thread operation handle (16), in the middle part of positioning pin (19)
Activity is plugged in nut (17) and hold-down support (5), and the working end of positioning pin (19) extends to hold-down support (5) outside；Nut
(17) it is connected through a screw thread one end of hold-down support (5), the other end of hold-down support (5) is fixed at movable support mechanism
On one block of side plate；Reset spring (18) is sheathed on the positioning pin (19) in hold-down support (5).
5. a kind of turnover mechanism for installing hydraulic pilot handle on fork truck according to claim 2, it is characterised in that:
Right side plate (9), the left plate (10) of the fixed bracket institution are located at the outside of a pair of L-shaped plate of the movable support mechanism；
Washer is arranged on pin shaft (4) between right side plate (9) and corresponding L shaped plate, between left plate (10) and corresponding L shaped plate
Pin shaft is arranged with washer on (4).
6. a kind of turnover mechanism for installing hydraulic pilot handle on fork truck according to claim 5, it is characterised in that:
The washer is nylon washer.
7. a kind of turnover mechanism for installing hydraulic pilot handle on fork truck according to claim 2, it is characterised in that:
The pin hole end side of the right side plate (9) of the fixed bracket institution and the pin hole end side of left plate (10) are folded upward at；It is right
Stiffening plate, the bottom of right side plate (9) bending place are equipped between the top margin of the bending of the top margin and left plate (10) of side plate (9) bending place
Stiffening plate is equipped between side and the bottom edge of left plate (10) bending place.
8. a kind of turnover mechanism for installing hydraulic pilot handle on fork truck according to claim 3, it is characterised in that:
The short side of left L shaped plate (11) of the movable support mechanism and the short side and length of the outside junction of long side and right L shaped plate (12)
While outside junction be arc transition while.
9. a kind of turnover mechanism for installing hydraulic pilot handle on fork truck according to claim 4, it is characterised in that:
The reset spring (18) is pressure spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811319483.6A CN109292687A (en) | 2018-11-07 | 2018-11-07 | A kind of turnover mechanism for installing hydraulic pilot handle on fork truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811319483.6A CN109292687A (en) | 2018-11-07 | 2018-11-07 | A kind of turnover mechanism for installing hydraulic pilot handle on fork truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109292687A true CN109292687A (en) | 2019-02-01 |
Family
ID=65146042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811319483.6A Pending CN109292687A (en) | 2018-11-07 | 2018-11-07 | A kind of turnover mechanism for installing hydraulic pilot handle on fork truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109292687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111591922A (en) * | 2020-06-11 | 2020-08-28 | 山东水利职业学院 | Automatic carrying and conveying device for goods in warehouse logistics center |
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|---|---|---|---|---|
| US6557586B1 (en) * | 1999-08-27 | 2003-05-06 | Crown Equipment Corporation | Control handle support and valve linkage assembly |
| CN101264856A (en) * | 2008-04-23 | 2008-09-17 | 安徽合力股份有限公司 | Multi-way valve operation mechanism for fork lift |
| KR20100044998A (en) * | 2008-10-23 | 2010-05-03 | 두산인프라코어 주식회사 | Hydraulic motor control device for electric forklift truck |
| CN203255930U (en) * | 2013-03-30 | 2013-10-30 | 山东山推机械有限公司 | Self-locking turning-over operation device |
| CN105351612A (en) * | 2015-11-26 | 2016-02-24 | 安徽江淮银联重型工程机械有限公司 | Multiway valve control device capable of being turned over |
| CN105692508A (en) * | 2015-11-02 | 2016-06-22 | 林德（中国）叉车有限公司 | Multi-way valve control handle connection device and multi-way valve control mechanism |
| CN106167240A (en) * | 2016-08-25 | 2016-11-30 | 安徽合力股份有限公司 | There is the forklift multi-way valve of single connecting rod operating mechanism |
| CN209428055U (en) * | 2018-11-07 | 2019-09-24 | 安徽合力股份有限公司 | A kind of turnover mechanism for installing hydraulic pilot handle on fork truck |
-
2018
- 2018-11-07 CN CN201811319483.6A patent/CN109292687A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6557586B1 (en) * | 1999-08-27 | 2003-05-06 | Crown Equipment Corporation | Control handle support and valve linkage assembly |
| CN101264856A (en) * | 2008-04-23 | 2008-09-17 | 安徽合力股份有限公司 | Multi-way valve operation mechanism for fork lift |
| KR20100044998A (en) * | 2008-10-23 | 2010-05-03 | 두산인프라코어 주식회사 | Hydraulic motor control device for electric forklift truck |
| CN203255930U (en) * | 2013-03-30 | 2013-10-30 | 山东山推机械有限公司 | Self-locking turning-over operation device |
| CN105692508A (en) * | 2015-11-02 | 2016-06-22 | 林德（中国）叉车有限公司 | Multi-way valve control handle connection device and multi-way valve control mechanism |
| CN105351612A (en) * | 2015-11-26 | 2016-02-24 | 安徽江淮银联重型工程机械有限公司 | Multiway valve control device capable of being turned over |
| CN106167240A (en) * | 2016-08-25 | 2016-11-30 | 安徽合力股份有限公司 | There is the forklift multi-way valve of single connecting rod operating mechanism |
| CN209428055U (en) * | 2018-11-07 | 2019-09-24 | 安徽合力股份有限公司 | A kind of turnover mechanism for installing hydraulic pilot handle on fork truck |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111591922A (en) * | 2020-06-11 | 2020-08-28 | 山东水利职业学院 | Automatic carrying and conveying device for goods in warehouse logistics center |
| CN111591922B (en) * | 2020-06-11 | 2021-03-30 | 山东水利职业学院 | Automatic carrying and conveying device for goods in warehouse logistics center |
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