CN206524121U

CN206524121U - A kind of Intelligent telescopic mechanism for orchard Sign Board

Info

Publication number: CN206524121U
Application number: CN201621354234.7U
Authority: CN
Inventors: 上官金辉
Original assignee: Xi'an Fengdeng Agriculture Technology Co Ltd
Current assignee: Xi'an Fengdeng Agriculture Technology Co Ltd
Priority date: 2016-12-10
Filing date: 2016-12-10
Publication date: 2017-09-26
Anticipated expiration: 2026-12-10

Abstract

The utility model discloses a kind of Intelligent telescopic mechanism for orchard Sign Board, including telescopic component, it is arranged on the movable cover plate body of the Sign Board left and right sides, the hydraulic cylinder being fixedly connected with movable cover plate body and the slide rail for being arranged on movable cover plate front and rear sides, slide rail is arranged on the front and rear sides of pit, one end of telescopic component is fixed in pit, and the other end is fixedly connected with support frame.The utility model in the bottom of support frame by installing telescopic component, when slack season, starting telescopic component can be such that agricultural Sign Board is moved in pit, movable cover plate body is covered above pit, is fixedly connected to realize the fixation of cover board body with the built-in fitting of pit roof by the ring-type hook on movable cover plate body.Telescoping mechanism of the present utility model, substantially prolongs the life cycle of agricultural Sign Board, and the utility model uses hydraulic drive, with it is simple in construction, transmission gapless, working stability the characteristics of.

Description

A kind of Intelligent telescopic mechanism for orchard Sign Board

Technical field

The utility model belongs to Sign Board, and in particular to a kind of Intelligent telescopic mechanism for orchard Sign Board.

Background technology

Sign Board is that fusion planning, building, space, sculpture, logic, color, aesthetics, material are combined in integral product, It is neither simple word, is less so-called plate, it is the unique artistic work mutually melted with environment.

Agricultural Sign Board plays indicative function, typically gives people indicating positions and direction, and some Sign Boards are in orchard Fruit tree classified, some Sign Boards are to divide proportion of crop planting region, and existing agricultural Sign Board is fixed on the ground, made Formed with welded steel.Because traditional agricultural Sign Board is fixed on vacant lot, under many circumstances, agricultural Sign Board can hinder agriculture With machinery reversing or turn around；And existing agricultural Sign Board is present, and additional function is few, be not fully utilized, eye-catching effect Small shortcoming.

Utility model content

The reversing of farm machinery or the problem that turns around are hindered in order to solve existing agricultural Sign Board, the utility model is provided A kind of Intelligent telescopic mechanism for orchard Sign Board.The technical problems to be solved in the utility model is real by the following technical programs It is existing：

A kind of Intelligent telescopic mechanism for orchard Sign Board, including telescopic component, it is arranged on orchard Sign Board or so two The movable cover plate body of side, the hydraulic cylinder being fixedly connected with movable cover plate body, the slide rail for being arranged on movable cover plate front and rear sides And intelligence control system,

The telescopic component is arranged in the pit of orchard Sign Board, and the telescopic component includes motor, the motor belt motor Move the telescopic component flexible up and down in pit, for lifting orchard Sign Board, the movable cover plate body is along the slide rail Move back and forth；

The intelligence control system include multiple distance measuring sensors, A/D converter, controller, drive circuit, timer and Alarm, multiple distance measuring sensors are separately positioned on movable cover plate body and telescopic component, the A/D converter, institute State controller, the timer and the alarm to be separately positioned on hydraulic cylinder, the drive circuit is arranged on described flexible On the motor of component；Input of the output end of the distance measuring sensor with the controller after A/D converter is connected；Institute State input of the output end of controller respectively with the alarm, the timer, the drive circuit to be connected, the driving The output end connection motor of circuit.

As further restriction of the present utility model, the telescopic component includes connection rod set I, connection rod set II, electric pushrod Ith, electric pushrod II, motor and base, the top and the bottom of connection rod set II of the connection rod set I are hinged, and the connection rod set I includes First connecting rod I and second connecting rod I, first connecting rod I and the second connecting rod I intersection are hinged, the bottom of connection rod set I with Base is connected, and the bottom of the electric pushrod I and motor connection, the telescopic end of the electric pushrod I are cut with scissors with the connection rod set I Connect；The connection rod set II includes first connecting rod II and second connecting rod II, and the first connecting rod II and the second connecting rod II intersect Place is hinged, and the bottom of the electric pushrod II and motor connection, the telescopic end of the electric pushrod II are cut with scissors with the connection rod set II Connect, the top of the connection rod set II is fixedly connected with crossbeam.

As further restriction of the present utility model, the movable cover plate body is provided with four bent axles, four rollings, four One end of the individual bent axle connects the side wall of movable cover plate body respectively, and the other end of the bent axle connects roller inner ring respectively, Rolling bearing is provided between the roller inner ring and the bent axle, the inwall of the rolling bearing is connected with the bent axle, described The outer wall of rolling bearing is connected with the inwall of the roller；The roller is moved back and forth under the guiding of the slide rail；It is described to move The bottom surface of dynamic cover board body is additionally provided with a shackle member, and the shackle member is hollow structure, and the inwall of the shackle member is provided with convex Platform.

As further restriction of the present utility model, the hydraulic cylinder includes piston, piston rod, connecting rod, cylinder barrel and cylinder cap, The piston is fixed on connecting rod, and the cylinder barrel and piston outer wall gap coordinate, an end closure of the cylinder barrel, the other end it is interior Wall is fixedly connected with the cylinder cap, and the outer wall of the cylinder barrel is provided with the oil inlet communicated with inner wall of cylinder；The one of the piston rod Hold to enter through after the cylinder cap and be fixedly connected in the cylinder barrel with the connecting rod；The other end of the piston rod is provided with recessed The movable cover plate body is fixedly connected with the hydraulic cylinder in groove, boss insertion groove.

As further restriction of the present utility model, the cylinder cap outer wall is with the inner wall of cylinder contact portion provided with sealing Circle；The outer wall of the piston is provided with the sealing ring for sealed hydraulic grease；The upper end of the piston is additionally provided with buffer gasket, The inwall of the buffer gasket is fixedly connected with the outer wall of connecting rod.

As further restriction of the present utility model, the oil inlet of the cylinder barrel is two, is separately positioned on the piston The left and right sides.

As further restriction of the present utility model, the outer wall of the cylinder cap is provided with fastening flange collar, the inwall of the cylinder barrel Cylinder barrel groove is provided with, the fastening flange collar is interference fitted with the cylinder barrel groove.

As further restriction of the present utility model, the movable cover plate body, which is provided with, to be used for and pit roof is fixed and connected The ring-type hook connect.

As further restriction of the present utility model, chute is provided with the base, the bottom of connection rod set I is provided with cunning Wheel, the connection rod set I is movably connected with the base by pulley, and the pulley is provided with the brake member for fixed block, described Base is fixedly connected with the lower surface of the pit.

As further restriction of the present utility model, it is provided with the pit in concrete foundation, the concrete foundation Multiple pre-embedded bolts are embedded with, the base leads to provided with multiple endoporus passed through for the pre-embedded bolt, the pre-embedded bolt Nut is crossed to be fixedly connected with the base with the pit.

As further restriction of the present utility model, the body is provided with protective cover, and the protective cover is with dismountable Mode is fixedly connected with the body.

As further restriction of the present utility model, support frame as described above, electric pushrod I, electric pushrod II are respectively stainless Steel matter.

The beneficial effects of the utility model：

The utility model in the bottom of support frame by installing telescopic component, when slack season, and agriculture can be made by starting telescopic component It is moved to Sign Board in pit, cover plate is covered above pit；Work as season for spring ploughing, open the cover plate above pit, startup is stretched Agricultural Sign Board emersion ground can be played mark action by contracting mechanism.Telescoping mechanism of the present utility model, substantially prolongs agriculture With the life cycle of Sign Board.

The utility model by the pit for accommodating orchard Sign Board and elevating mechanism set movable cover plate body, It is fixedly connected to realize the fixation of cover board body with the built-in fitting of pit roof by the ring-type hook on movable cover plate body.This Utility model uses hydraulic drive, with it is simple in construction, transmission gapless, working stability the characteristics of.

The utility model is described in further details below with reference to drawings and Examples.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of the utility model movable cover plate component.

Fig. 3 is the sectional view of the utility model hydraulic cylinder.

Fig. 4 is the sectional view of the utility model shackle member.

Fig. 5 is the structured flowchart of the utility model intelligence control system.

Fig. 6 is single-chip microcomputer internal circuit diagram.

Fig. 7 is drive circuit figure.

Fig. 8 is the circuit diagram of A/D modular converters.

In figure：1. body；2. support frame；21. crossbeam；3. pit；41. connection rod set I；411. first connecting rods I；412. the Two connecting rods I；42. connection rod set II；421. first connecting rods II；422. second connecting rods II；43. electric pushrod I；44. electric pushrod II； 45. motor；46. base；51. movable cover plate body；511. bent axle；512. roller；513. shackle member；513-1. boss；521. Piston rod；521-1. groove；522. cylinder barrel；522-1. oil inlet；523. cylinder cap；524. piston；525. connecting rod；526. cushion pad Circle；53. slide rail.

Embodiment

Reach technological means and effect that predetermined purpose is taken for the utility model is expanded on further, below in conjunction with accompanying drawing And embodiment is to embodiment of the present utility model, architectural feature and its effect, describe in detail as follows.

Particularly point out, term of the present utility model " on ", " under ", "left", "right", " top surface ", " bottom surface ", " interior ", " outer " Orientation or position relationship Deng instruction are, based on orientation shown in the drawings or position relationship, to be for only for ease of and describe this practicality newly Type and simplified description, rather than instruction or the signified device of hint or element must be with specific orientation, with specific orientation Construction and operation, therefore it is not intended that to limitation of the present utility model.

Reference picture 1- Fig. 4, a kind of Intelligent telescopic mechanism for orchard Sign Board, it is characterised in that including telescopic component, The movable cover plate body that is arranged on the Sign Board left and right sides, the hydraulic cylinder being fixedly connected with movable cover plate body and it is arranged on movement The slide rail 53 of cover plate front and rear sides,

The telescopic component includes connection rod set I 41, connection rod set II 42, electric pushrod I 43, electric pushrod II 44, motor 45 With base 46, the top and the bottom of connection rod set II 42 of the connection rod set I 41 are hinged, and the connection rod set I 41 includes first connecting rod I 411 and second connecting rod I 412, first connecting rod I 411 and the second connecting rod I 412 intersection is hinged, the connection rod set I 41 Bottom is connected with base 46, and the bottom of the electric pushrod I 43 is connected with motor 45, the telescopic end of the electric pushrod I 43 with The connection rod set I 41 is hinged；The connection rod set II 42 includes first connecting rod II 421 and second connecting rod II 422, the first connecting rod II 421 and the intersection of the second connecting rod II 422 be hinged, the bottom of the electric pushrod II 44 is connected with motor 45, the electricity The telescopic end of dynamic push rod II 44 is hinged with the connection rod set II 42, and the top of the connection rod set II 42 is fixed with the crossbeam 21 to be connected Connect；

The movable cover plate body 51 is provided with four bent axles 511, four rollings 512, one end of four bent axles 511 The side wall of movable cover plate body 51 is connected respectively, and the other end of the bent axle 511 connects the inner ring of roller 512, the roller respectively Rolling bearing is provided between 512 inner rings and the bent axle 511, the inwall of the rolling bearing is connected with the bent axle 511, described The outer wall of rolling bearing is connected with the inwall of the roller 512；The roller 512 is back and forth transported under the guiding of the slide rail 53 It is dynamic；The bottom surface of the movable cover plate body 51 is additionally provided with a shackle member 513, and the shackle member 513 is hollow structure, the clamping The inwall of part 513 is provided with boss 513-1；

The hydraulic cylinder includes piston 524, piston rod 521, connecting rod 525, cylinder barrel 522 and cylinder cap 523, the piston 524 It is fixed on connecting rod 525, the cylinder barrel 522 coordinates with the outer wall gap of piston 524, an end closure of the cylinder barrel 522, the other end Inwall be fixedly connected with the cylinder cap 523, the outer wall of the cylinder barrel 522 is provided with the oil inlet communicated with the inwall of cylinder barrel 522 522-1；One end of the piston rod 521 passes through to enter after the cylinder cap 523 and fixed in the cylinder barrel 522 with the connecting rod 525 Connection；The other end of the piston rod 521 is provided with groove 521-1, and the boss 513-1 insertion grooves 521-1 is interior will be described Movable cover plate body 51 is fixedly connected with the hydraulic cylinder.

Preferably, the outer wall of cylinder cap 523 is provided with sealing ring with the inwall contact portion of cylinder barrel 522；The piston 524 Outer wall be provided with for sealed hydraulic grease sealing ring；The upper end of the piston 524 is additionally provided with buffer gasket 526, described The inwall of buffer gasket 526 is fixedly connected with the outer wall of connecting rod 525.

Preferably, the oil inlet 522-1 of the cylinder barrel 522 is two, is separately positioned on the left and right two of the piston 524 Side.

Preferably, the outer wall of the cylinder cap 523 is provided with fastening flange collar, and the inwall of the cylinder barrel 522 is recessed provided with cylinder barrel 522 Groove 521-1, the fastening flange collar is interference fitted with the groove 521-1 of cylinder barrel 522.

Preferably, the movable cover plate body 51 is provided with the ring-type hook for being used for being fixedly connected with the roof of pit 3.

Reference picture 5, the utility model also include intelligence control system, intelligence control system include multiple distance measuring sensors, A/D converter, controller, drive circuit, timer and alarm, multiple distance measuring sensors are separately positioned on movable cover plate body 51 and crossbeam 21 on, A/D converter, controller, timer and alarm are separately positioned on hydraulic cylinder, and drive circuit is arranged on On the motor 45 of telescopic component；The output end of distance measuring sensor is connected after A/D converter with the input of controller；Control Input of the output end of device respectively with alarm, timer, drive circuit is connected, the output end connection motor of drive circuit 45。

The preferred single-chip microcomputer of controller, reference picture 6 is described by taking model AT89C52 single-chip microcomputer as an example.

Reference picture 7, the preferred model AD670 of A/D modular converters of the present embodiment A/D modular converters.

Reference picture 8, the drive circuit of the present embodiment includes driving chip LMD18200,1, the 2 of driving chip LMD18200 Pins in parallel has electric capacity C1, and driving chip LMD18200 11,12 pins in parallel have electric capacity C2, the positive pole connection driving core of motor Piece LMD18200 2 pins, the negative pole connection driving chip LMD18200 of motor 10 pins, after resistance R1 connects with electric capacity C3 With motor parallel.

It need to point out：The present embodiment is with model AT89C52 single-chip microcomputer, model AD670 A/D modular converters, model Exemplified by LMD18200 driving chip, it is briefly described as follows：

AD670 6 pin connect AT89C52 22 pin, and AD670 7 pin connect AT89C52 23 pin, and AD670 8 pin connect AT89C52 24 pin, AD670 9 pin connect AT89C52 25 pin, and AD670 10 pin connect AT89C52 26 pin, the 11 of AD670 Pin connects AT89C52 27 pin, and AD670 12 pin connect AT89C52 28 pin, and AD670 13 pin connect AT89C52 29 pin；Simply For, AD670 D11-D4 pin meet AT89C52 P0-P7 so that realize the electric signal transmission that exports A/D modular converters to Single-chip microcomputer is handled.

The PB0 pin of drive circuit connect AT89C52 B0 pin, and the PB1 pin of drive circuit connect AT89C52 B1 pin, so that real Now by the electric signal transmission of single-chip microcomputer to drive circuit, after drive circuit is powered, motor operating, corresponding component work.

The utility model in the bottom of support frame by installing telescoping mechanism, when slack season, and agriculture can be made by starting telescoping mechanism It is moved to Sign Board in pit, cover plate is covered above pit；Work as season for spring ploughing, open the cover plate above pit, startup is stretched Agricultural Sign Board emersion ground can be played mark action by contracting mechanism.Telescoping mechanism of the present utility model, substantially prolongs agriculture With the life cycle of Sign Board.

The utility model is detailed further below：

One kind is used for orchard Sign Board, including body 1, support frame 2, telescopic component, and support frame 2 is arranged on the bottom of body 1 Portion, body 1 is fixedly connected with support frame 2, and the bottom of support frame 2 is fixed with crossbeam 21, and the placement that is arranged right below of body 1 is stretched The pit 3 of component, the upper surface of pit 3 is concordant with ground；

Telescopic component includes connection rod set I 41, connection rod set II 42, electric pushrod I 43, electric pushrod II 44, motor 45 and bottom Seat 46, the top and the bottom of connection rod set II 42 of connection rod set I 41 are hinged, and connection rod set I 41 connects including first connecting rod I 411 and second Bar I 412, first connecting rod I 411 and the intersection of second connecting rod I 412 are hinged, and the bottom of connection rod set I 41 is connected with base 46, electronic to push away The bottom of bar I 43 is connected with motor 45.The telescopic end of electric pushrod I 43 is hinged with connection rod set I 41；

Connection rod set II 42 includes first connecting rod II 421 and second connecting rod II 422, first connecting rod II 421 and second connecting rod II 422 intersections are hinged, and the bottom of electric pushrod II 44 is connected with motor 45.The telescopic end of electric pushrod II 44 and connection rod set II 42 are hinged, and the top of connection rod set II 42 is fixedly connected with crossbeam 21.

It is preferred that being provided with chute on base 46, the bottom of connection rod set I 41 is provided with pulley, and connection rod set I 41 passes through pulley and base 46 Be flexibly connected, pulley be provided with for fixed block brake member, set chute purpose be by mobile pulley, can be at any time Adjust the height of Sign Board.

It is preferred that base 46 is fixedly connected with the lower surface of pit 3, of the present utility model be fixedly connected is in order that moving machine What structure can gently be stablized moves up and down.

In order that travel mechanism can gently stablize it is flexible up and down, concrete foundation, concrete foundation are provided with pit 3 Multiple pre-embedded bolts are inside embedded with, base 46 is provided with the endoporus that multiple confession pre-embedded bolts are passed through, and pre-embedded bolt will by nut Base 46 is fixedly connected with pit 3.

Body 1 is provided with protective cover, and protective cover is removably fixedly connected with body 1, and the utility model is set The purpose of protective cover is to preferably protect Sign Board not corroded and be exposed to the sun.

Support frame 2, electric pushrod I 43, electric pushrod II 44 are respectively stainless steel, and the purpose from stainless steel is： The surface aesthetic and corrosion resistance and good of stainless steel.

In the season of crop growth, that is, spring and summer autumn, connection rod set I 41, connection rod set II 42 are in topmost, now Sign Board rest on the ground, mark can be played a part of；At slack seasons, connection rod set I 41, the mark of connection rod set II 42 now Memorial tablet in below ground, that is, in pit 3, the structure of pit 3 protect well Sign Board do not exposed to the weather and Corrosion, extends the usage cycles of Sign Board.It may be noted that the motion process of telescopic component is：Start motor 45, electric pushrod I 43 and the telescopic end of electric pushrod II 44 move up respectively, promote connection rod set I 41 and connection rod set II 42 to move up, due to connection rod set II 42 top is fixedly connected with crossbeam 21, therefore when connection rod set I 41 and connection rod set II 42 are moved up, and crossbeam 21 is also to moving up It is dynamic, drive support frame 2 and Sign Board to also move up in passing, Sign Board is pushed to correct position.When Sign Board is moved to conjunction When right position is put, due to the supporting role of electric pushrod I 43 and electric pushrod II 44, therefore Sign Board will also be in stationary state.

The utility model in the bottom of support frame 2 by installing telescopic component, when slack season, and starting telescopic component can make Agricultural Sign Board is moved in pit 3, and cover plate is covered in the top of pit 3；Work as season for spring ploughing, open the cover plate of the top of pit 3, open Agricultural Sign Board emersion ground can be played mark action by dynamic telescopic component.Telescoping mechanism of the present utility model, is greatly prolonged The life cycle of agricultural Sign Board.

Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded To belong to protection domain of the present utility model.

Claims

1. a kind of Intelligent telescopic mechanism for orchard Sign Board, it is characterised in that including telescopic component, be arranged on orchard mark The movable cover plate body of the board left and right sides, the hydraulic cylinder being fixedly connected with movable cover plate body, it is arranged on two before and after movable cover plate The slide rail (53) and intelligence control system of side,

The telescopic component is arranged in the pit (3) of orchard Sign Board, and the telescopic component includes motor (45), the motor (45) drive the telescopic component flexible up and down in pit (3), for lifting orchard Sign Board, the movable cover plate body edge The slide rail (53) moves back and forth；

The intelligence control system includes multiple distance measuring sensors, A/D converter, controller, drive circuit, timer and alarm Device, multiple distance measuring sensors are separately positioned on movable cover plate body (51) and telescopic component, the A/D converter, institute State controller, the timer and the alarm to be separately positioned on hydraulic cylinder, the drive circuit is arranged on described flexible On the motor (45) of component；The output end of the distance measuring sensor connects after A/D converter with the input of the controller Connect；Input of the output end of the controller respectively with the alarm, the timer, the drive circuit is connected, institute State the output end connection motor (45) of drive circuit.

2. a kind of Intelligent telescopic mechanism for orchard Sign Board according to claim 1, it is characterised in that described flexible Component also includes connection rod set I (41), connection rod set II (42), electric pushrod I (43), electric pushrod II (44) and base (46), institute The top and the bottom of connection rod set II (42) for stating connection rod set I (41) are hinged, and the connection rod set I (41) includes first connecting rod I (411) With second connecting rod I (412), the first connecting rod I (411) and the second connecting rod I (412) intersection are hinged, the connection rod set I (41) bottom is connected with base (46), and the bottom of the electric pushrod I (43) is connected with motor (45), the electric pushrod I (43) telescopic end is hinged with the connection rod set I (41)；The connection rod set II (42) includes first connecting rod II (421) and second and connected Bar II (422), the first connecting rod II (421) and the second connecting rod II (422) intersection are hinged, the electric pushrod II (44) bottom is connected with motor (45), and the telescopic end of the electric pushrod II (44) is hinged with the connection rod set II (42), institute The top for stating connection rod set II (42) is fixedly connected with crossbeam (21).

3. a kind of Intelligent telescopic mechanism for orchard Sign Board according to claim 1, it is characterised in that the movement Cover board body (51) is provided with four bent axles (511), four rollings (512), and one end of four bent axles (511) is connected respectively The side wall of movable cover plate body (51), the other end of the bent axle (511) connects roller (512) inner ring, the roller respectively (512) rolling bearing is provided between inner ring and the bent axle (511), the inwall of the rolling bearing connects with the bent axle (511) Connect, the outer wall of the rolling bearing is connected with the inwall of the roller (512)；The roller (512) is in the slide rail (53) Guiding is lower to be moved back and forth；The bottom surface of the movable cover plate body (51) is additionally provided with a shackle member (513), the shackle member (513) For hollow structure, the inwall of the shackle member (513) is provided with boss (513-1).

4. a kind of Intelligent telescopic mechanism for orchard Sign Board according to claim 1, it is characterised in that the hydraulic pressure Cylinder includes piston (524), piston rod (521), connecting rod (525), cylinder barrel (522) and cylinder cap (523), and the piston (524) is fixed On connecting rod (525), the cylinder barrel (522) coordinates with piston (524) outer wall gap, an end closure of the cylinder barrel (522), separately The inwall of one end is fixedly connected with the cylinder cap (523), and the outer wall of the cylinder barrel (522) is provided with to be communicated with cylinder barrel (522) inwall Oil inlet (522-1)；One end of the piston rod (521) through the cylinder cap (523) afterwards enter the cylinder barrel (522) in The connecting rod (525) is fixedly connected；The other end of the piston rod (521) is provided with groove (521-1), and boss (513-1) is inserted Enter and be fixedly connected with the movable cover plate body (51) with the hydraulic cylinder in groove (521-1).

5. a kind of Intelligent telescopic mechanism for orchard Sign Board according to claim 4, it is characterised in that the cylinder cap (523) outer wall is provided with sealing ring with the cylinder barrel (522) inwall contact portion；The outer wall of the piston (524), which is provided with, to be used for The sealing ring of sealed hydraulic grease；The upper end of the piston (524) is additionally provided with buffer gasket (526), the buffer gasket (526) inwall is fixedly connected with the outer wall of connecting rod (525).

6. a kind of Intelligent telescopic mechanism for orchard Sign Board according to claim 4, it is characterised in that the cylinder barrel (522) oil inlet (522-1) is two, is separately positioned on the left and right sides of the piston (524).

7. a kind of Intelligent telescopic mechanism for orchard Sign Board according to claim 1, it is characterised in that the movement Cover board body (51) is provided with the ring-type hook for being used for being fixedly connected with pit (3) roof.

8. a kind of Intelligent telescopic mechanism for orchard Sign Board according to claim 2, it is characterised in that the base (46) chute is provided with, described (41) bottom of connection rod set I is provided with pulley, and the connection rod set I (41) passes through pulley and base (46) It is flexibly connected, the pulley is provided with the brake member for fixed block, the base (46) and the lower surface of the pit (3) It is fixedly connected.

9. a kind of Intelligent telescopic mechanism for orchard Sign Board according to claim 8, it is characterised in that the pit (3) it is provided with concrete foundation, the concrete foundation and is embedded with multiple pre-embedded bolts, the base (46) is provided with multiple The endoporus passed through for the pre-embedded bolt, the pre-embedded bolt is fixed by the base (46) and the pit (3) by nut Connection.