CN208488034U - A kind of hand-rail type is countdowned corn measuring scale - Google Patents

Abstract

The utility model relates to the technical fields of maize production plantation auxiliary equipment, countdown corn measuring scale more particularly to a kind of hand-rail type, and whole height can need conveniently to be adjusted according to staff's measurement, reduce it and use limitation；And tape of countdowning can facilitate when idle pack up placement, improves the practicality；And can be convenient and be fixed when the measurement of its cornstalk stem, to improve its use reliability；Including tape of countdowning, bottom plate and four pack supports；It further include universal wheel, support plate, telescopic mast and hydraulic cylinder, support plate top is provided with the first placing groove, and is internally provided with the first ball bearing and the first limit film in the first placing groove, and the first placing groove top is provided with first flap；It further include preceding connecting column, handle, connection frame, preceding Rotational Cylindrical, connecting spring and rear Rotational Cylindrical；Bottom plate top left hand is horizontally arranged with fixing groove, further include preceding fixed link, multiple groups set spring and multiple groups after fixed link.

Description

A kind of hand-rail type is countdowned corn measuring scale

Technical field

The utility model relates to the technical fields of maize production plantation auxiliary equipment, more particularly to a kind of hand-rail type backward read Number corn measuring scale.

Background technique

It is well known that corn measuring scale of countdowning is a kind of for being carried out in maize production planting process to cornstalk stem Measurement, the auxiliary device for planting staff more preferably have obtained widely making in the field of maize production plantation With；Existing corn measuring scale of countdowning includes countdown tape, bottom plate and four pack supports, and the top of four pack supports is installed respectively In bottom plate bottom end, front left side, forward right side, left rear side and right lateral side, tape of countdowning are placed on bottom plate top；It is existing to countdown Corn measuring scale using when cornstalk stem is placed on bottom plate top, and it is measured by countdowning tape；It is existing Some is countdowned and is found in corn measuring scale use, and whole height is fixed, cannot be measured according to staff need it is convenient into Row is adjusted, and causes it higher using limitation；And tape of countdowning cannot facilitate when idle to carry out packing up placement, causes in fact It is poor with property；And cannot be conveniently fixed when the measurement of its cornstalk stem, it is poor so as to cause its use reliability.

Utility model content

In order to solve the above technical problems, the utility model, which provides a kind of its whole height, can measure need according to staff It to be conveniently adjusted, reduce it and use limitation；And tape of countdowning can facilitate when idle pack up placement, improves The practicality；And can be convenient and be fixed when the measurement of its cornstalk stem, so that the hand-rail type for improving its use reliability falls Read corn measuring scale.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, including tape of countdowning, bottom plate and four pack supports, The top of four pack supports is separately mounted to bottom plate bottom end front left side, forward right side, left rear side and right lateral side；It further include universal wheel, branch Fagging, telescopic mast and hydraulic cylinder, flexible top end are connect with bottom plate bottom end, and support plate top is provided with the first placing groove, and First placing groove is internally provided with the first ball bearing and the first limit film, and the first placing groove top is provided with first flap, liquid Cylinder pressure bottom end is inserted into inside the first ball bearing across first flap and connect with the first limit film, and telescopic mast bottom end is mounted on liquid Cylinder pressure top output port；It further include preceding connecting column, handle, connection frame, preceding Rotational Cylindrical, connecting spring and rear Rotational Cylindrical, preceding connection Column is mounted on front, handle on the right side of bottom plate top and is mounted on connection frame, and the front end of preceding Rotational Cylindrical is connect with connection frame, preceding rotation It is connect on rear side of connecting column with connecting spring front end before the rear end of column passes through preceding connecting column and extend out to, connecting spring rear end turns with rear Dynamic column front end connection；Bottom plate top left hand is horizontally arranged with fixing groove, further includes fixed after preceding fixed link, multiple groups set spring and multiple groups Bar, fixed link is respectively positioned on inside fixing groove after preceding fixed link, multiple groups set spring and multiple groups, and fixed link is laterally installed in solid after multiple groups Determine rear wall in slot, the rear end of multiple groups set spring connect with fixed link after multiple groups respectively, the front end of multiple groups set spring with preceding fixed link Rear side connection.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes rear connecting column, rear connecting column is mounted on Rear on the right side of bottom plate top, is provided with the second placing groove on rear connecting column front side wall, and is internally provided with the in the second placing groove Two ball bearings and the second limit film, the second placing groove front side are provided with second flap.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes rotation pipe, and the is passed through on rear side of rotation pipe Two baffles are inserted into inside the second ball bearing and connect with the second limit film, are provided with and communicated with communication port on front side of rotation pipe, also Including adjustment spring group and fixed ring, it is connect on the inside of adjustment spring group one end and rotation pipe, the adjustment spring group other end and fixation Ring connection, is arranged in fixed ring jagged, is installed on inside fixed ring on rear side of rear Rotational Cylindrical.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes buffer bar on four groups, four groups of buffering elastics Buffer bar under spring and four groups, buffer bar is separately mounted to the bottom end of four pack supports, one end difference of four groups of buffer springs on four groups It is connect with buffer bar on four groups, the other end of four groups of buffer springs is connect with buffer bar under four groups respectively, four groups of universal wheel difference It may be rotatably mounted at the lower section of buffer bar under four groups.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes multiple groups telescopic tube, multiple groups are scalable The rear end of pipe is connect with fixed link after multiple groups respectively, and the front end of multiple groups telescopic tube is connect on rear side of preceding fixed link, multiple groups set Spring is set on the outside of multiple groups telescopic tube.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes torque spring and clamping plate, clamping plate passes through Torque spring is mounted on rear Rotational Cylindrical side wall, and tape one end of countdowning is installed between clamping plate and rear Rotational Cylindrical.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes iron block on four groups, four groups of support springs Iron block under with four groups, the top of four groups of support springs are connect with iron block on four groups respectively, the bottom end of four groups of support springs respectively with Iron block connects under four groups.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes inhaling under magnet block and four groups on four groups Iron-stone block, magnet block is separately mounted to bottom plate bottom end front left side, forward right side, left rear side and right lateral side on four groups, inhales under four groups Iron-stone block is respectively mounted on the supporting plate, and iron block is adsorbed on magnet block bottom end on four groups respectively on four groups, and iron block is distinguished under four groups It is adsorbed on four groups of lower sucting iron stone tops.

Compared with prior art the utility model has the following beneficial effects: it can drive the bottom plate on telescopic mast by cylinder It is vertically moved, whole height is allow to need conveniently to be adjusted according to staff's measurement, reduced it and use limitation, And rotation cylinder facilitates unitary rotation by the first ball bearing, when adjust to four groups of universal wheels and ground face contact and support plate not When being contacted with ground, facilitate overall movement, when integrally needing to rotate, the bottom end of adjustable to four groups universal wheels and support plate Bottom end with ground face contact, the rotation of four groups of universal wheels auxiliary and improve enabling capabilities, the first limit film limits cylinder, Prevent its first placing groove of leaping up out, and the first limit film and cylinder rigid connection, when rotational cylinder, the first limit film is therewith Rotation, and the first ball bearing is installed between first flap and the first limit film, thus first placing groove that will not leap up out, the It can be with mechanical interlocking, so that the first limit film further progress be facilitated to fix between one limit film and the first placing groove；And energy Enough by manual swing handle, make it that the rear Rotational Cylindrical on connection frame be driven to be rotated, making to countdown after tape is wrapped in turns On dynamic column, enabling to countdown to facilitate when tape leaves unused pack up placement, improves the practicality；And multiple groups set can be passed through Fixed link clamps cornstalk stem before spring drives, and is fixed on cornstalk stem between fixing groove and preceding fixed link, corn Bar stem can be convenient when measuring and be fixed, to improve its use reliability, and clamps mode and cornstalk stem is facilitated to dismount.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram that preceding connecting column is connected with rear connecting column；

Fig. 3 is the structural schematic diagram of rotation pipe；

Fig. 4 is fixing groove, covers the structural schematic diagram that spring is connected with telescopic tube；

It is attached marked in the figure: 1, tape of countdowning；2, bottom plate；3, bracket；4, universal wheel；5, support plate；6, telescopic mast；7, liquid Cylinder pressure；8, first flap；9, preceding connecting column；10, handle；11, connection frame；12, preceding Rotational Cylindrical；13, rear Rotational Cylindrical；14, fixed Slot；15, spring is covered；16, rear connecting column；17, second flap；18, rotation pipe；19, fixed ring；20, buffer spring；21, scalable Pipe；22, clamping plate；23, support spring；24, upper magnet block；25, lower sucting iron stone.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.

As shown in Figures 1 to 4, a kind of hand-rail type of the utility model is countdowned corn measuring scale, including tape of countdowning 1, bottom plate 2 and four pack supports 3, after the top of four pack supports is separately mounted to bottom plate bottom end front left side, forward right side, left rear side and the right side Side；It further include universal wheel 4, support plate 5, telescopic mast 6 and hydraulic cylinder 7, flexible top end is connect with bottom plate bottom end, support plate top It is provided with the first placing groove, and is internally provided with the first ball bearing and the first limit film, the first placing groove in the first placing groove Top is provided with first flap 8, and hydraulic cylinder bottom end passes through first flap and is inserted into inside the first ball bearing and the first limit film Connection, telescopic mast bottom end is mounted on hydraulic cylinder top output port；Connecting column 9, handle 10, connection frame 11, preceding rotation before further including Column 12, connecting spring and rear Rotational Cylindrical 13, preceding connecting column are mounted on front, handle on the right side of bottom plate top and are mounted on connection frame, The front end of preceding Rotational Cylindrical is connect with connection frame, before the rear end of preceding Rotational Cylindrical passes through preceding connecting column and extend out on rear side of connecting column and even Spring at front end connection is connect, connecting spring rear end is connect with rear Rotational Cylindrical front end；Bottom plate top left hand is horizontally arranged with fixing groove 14, Further include preceding fixed link, multiple groups set spring 15 and multiple groups after fixed link, preceding fixed link, multiple groups set spring and multiple groups after fixed link be respectively positioned on Inside fixing groove, fixed link is laterally installed in rear wall in fixing groove after multiple groups, and multiple groups cover the rear end of spring respectively and after multiple groups The front end of fixed link connection, multiple groups set spring is connect on rear side of preceding fixed link；It can drive the bottom on telescopic mast by cylinder Plate is vertically moved, and whole height is allow to need conveniently to be adjusted according to staff's measurement, is reduced it and is used limitation Property, and rotation cylinder facilitates unitary rotation by the first ball bearing, when adjust to four groups of universal wheels with face contact and support Plate when being contacted with ground, does not facilitate overall movement, when integrally needing to rotate, the bottom end of adjustable to four groups universal wheels and branch The bottom end of fagging is with ground face contact, four groups of universal wheel auxiliary rotations and raising enabling capabilities, and the first limit film is to cylinder progress Limit, prevents its first placing groove of leaping up out, and the first limit film and cylinder rigid connection, when rotational cylinder, the first limit film with It is rotated together, and the first ball bearing is installed between first flap and the first limit film, first is put to will not leap up out Slot is set, it can be with mechanical interlocking, so that the first limit film further progress be facilitated to fix between the first limit film and the first placing groove； And it can make it that the rear Rotational Cylindrical on connection frame be driven to be rotated by manual swing handle, make tape winding of countdowning In rear Rotational Cylindrical, enabling to countdown to facilitate when tape leaves unused pack up placement, improves the practicality；And it can pass through Fixed link clamps cornstalk stem before multiple groups set spring drives, and is fixed on cornstalk stem between fixing groove and preceding fixed link, Its cornstalk stem can be convenient when measuring and be fixed, to improve its use reliability, and clamps mode and facilitates cornstalk Stem dismounting.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes rear connecting column 16, rear connecting column installation The rear on the right side of bottom plate top is provided with the second placing groove on rear connecting column front side wall, and is internally provided in the second placing groove Second ball bearing and the second limit film, the second placing groove front side are provided with second flap 17；It can pass through the second ball axis Rotational Cylindrical after facilitating auxiliary is held to rotate.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, is further included rotation pipe 18, is passed through on rear side of rotation pipe Second flap is inserted into inside the second ball bearing and connect with the second limit film, is provided with and communicated with communication port on front side of rotation pipe, Further include adjustment spring group and fixed ring 19, connect on the inside of adjustment spring group one end and rotation pipe, the adjustment spring group other end and Fixed ring connection, is arranged in fixed ring jagged, is installed on inside fixed ring on rear side of rear Rotational Cylindrical；It can pass through rotation pipe pair It is blocked on rear side of Rotational Cylindrical afterwards, the tape that makes to countdown is not easily to fall off, drives fixed ring to rear Rotational Cylindrical by adjustment spring group Clamping fixation is carried out, Rotational Cylindrical carries out disassembly disengaging after convenience, so that tape of conveniently countdowning is dismounted, the second limit film pair Rotation pipe is limited, its second placing groove of leaping up out, and the second limit film and rotation pipe rigid connection, rotation pipe rotation are prevented When, the second limit film rotates therewith, and the second ball bearing is installed between second flap and the second limit film, thus Will not leap up out the second placing groove, can be with mechanical interlocking, to facilitate the second limit film between the second limit film and the second placing groove Further progress is fixed.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes buffer bar on four groups, four groups of buffering elastics Buffer bar under spring 20 and four groups, buffer bar is separately mounted to the bottom end of four pack supports, one end point of four groups of buffer springs on four groups It is not connect with buffer bar on four groups, the other end of four groups of buffer springs is connect with buffer bar under four groups respectively, four groups of universal wheels point It not may be rotatably mounted at the lower section of buffer bar under four groups；It can buffer universal wheel by four groups of buffer springs, so as to In whole maintenance level state, its reliability is improved.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes multiple groups telescopic tube 21, multiple groups can stretch The rear end of the draw is connect with fixed link after multiple groups respectively, and the front end of multiple groups telescopic tube is connect on rear side of preceding fixed link, multiple groups Set spring is set on the outside of multiple groups telescopic tube；It can improve support effect by multiple groups telescopic tube and assist multiple groups set Spring is not easy torsional deformation.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes torque spring and clamping plate 22, and clamping plate is logical It crosses torque spring to be mounted on rear Rotational Cylindrical side wall, tape one end of countdowning is installed between clamping plate and rear Rotational Cylindrical；It can be with It is fixed in rear Rotational Cylindrical by the cooperation of clamping plate and rear Rotational Cylindrical tape one end of conveniently countdowning, when fixed, breaks clamping plate into two with one's hands, it will Tape one end of countdowning is placed between clamping plate and top plate, carries out clamping to it under the action of torque spring fixed.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes iron block on four groups, four groups of support springs 23 and four groups under iron block, the top of four groups of support springs connect with iron block on four groups respectively, the bottom end difference of four groups of support springs It is connect with iron block under four groups；It can facilitate auxiliary telescopic column to support and auxiliary backplane is facilitated to balance by four groups of support springs.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, further includes on four groups under magnet block 24 and four groups Magnet block 25, magnet block is separately mounted to bottom plate bottom end front left side, forward right side, left rear side and right lateral side on four groups, and four groups Lower sucting iron stone is respectively mounted on the supporting plate, and iron block is adsorbed on magnet block bottom end on four groups, iron block under four groups respectively on four groups It is adsorbed on four groups of lower sucting iron stone tops respectively；Iron block, which is adsorbed on respectively on four groups, when integrally being not necessarily to rotate, on four groups inhales iron Stone bottom end, iron block is adsorbed on four groups of lower sucting iron stone tops respectively under four groups, facilitates four groups of support spring normal uses, and works as When entirety needs to rotate, iron block on four groups is separated into magnet block bottom end on four groups respectively, iron block separates four groups respectively under four groups Practicability is improved on lower sucting iron stone top.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, at work, can be driven and be stretched by cylinder Bottom plate on contracting column is vertically moved, and whole height is allow to need conveniently to be adjusted according to staff's measurement, is reduced It uses limitation, and rotation cylinder facilitates unitary rotation by the first ball bearing, when adjusting to four groups of universal wheels and ground Contact and support plate not when being contacted with ground, facilitate overalls movement, when it is whole need to rotate when, adjustable to four groups universal wheels Bottom end and support plate bottom end with ground face contact, the rotation of four groups of universal wheels auxiliary and improve enabling capabilities, the first limit film Cylinder is limited, prevents its first placing groove of leaping up out, and the first limit film and cylinder rigid connection, when rotational cylinder, the One limit film rotates therewith, and the first ball bearing is installed between first flap and the first limit film, thus will not It leaps up out the first placing groove, it can be with mechanical interlocking, to facilitate the first limit film into one between the first limit film and the first placing groove Step is fixed；And it can make it that the rear Rotational Cylindrical on connection frame be driven to be rotated by manual swing handle, make backward read Number tape is wrapped in rear Rotational Cylindrical, and enabling to countdown to facilitate when tape leaves unused pack up placement, improves the practicality；And And can by multiple groups cover spring drive before fixed link cornstalk stem is clamped, make cornstalk stem be fixed on fixing groove with it is preceding solid Between fixed pole, cornstalk stem can be convenient when measuring and be fixed, to improve its use reliability, and clamp mode side Just cornstalk stem dismounts；Rotational Cylindrical after auxiliary can be facilitated to rotate by the second ball bearing；It can be by rotation pipe to rear turn It is blocked on rear side of dynamic column, the tape that makes to countdown is not easily to fall off, drives fixed ring to carry out rear Rotational Cylindrical by adjustment spring group It clamps and fixes, Rotational Cylindrical carries out disassembly disengaging after convenience, so that tape of conveniently countdowning is dismounted, the second limit film is to rotation Pipe is limited, its second placing groove of leaping up out, and the second limit film and rotation pipe rigid connection are prevented, when rotation pipe rotates, the Two limit films rotate therewith, and the second ball bearing is installed between second flap and the second limit film, thus will not It leaps up out the second placing groove, it can be with mechanical interlocking, to facilitate the second limit film into one between the second limit film and the second placing groove Step is fixed；Universal wheel can be buffered by four groups of buffer springs, in order to whole maintenance level state, improve it Reliability；Support effect can be improved by multiple groups telescopic tube and multiple groups is assisted to cover spring be not easy torsional deformation；Folder can be passed through The cooperation of plate and rear Rotational Cylindrical tape one end of conveniently countdowning is fixed in rear Rotational Cylindrical, when fixed, broken clamping plate into two with one's hands, will be countdowned Tape one end is placed between clamping plate and top plate, carries out clamping to it under the action of torque spring fixed；Four can be passed through Group support spring facilitates auxiliary telescopic column to support and auxiliary backplane is facilitated to balance；When integrally it is not necessary that when rotating, iron block divides on four groups It is not adsorbed on magnet block bottom end on four groups, iron block is adsorbed on four groups of lower sucting iron stone tops respectively under four groups, facilitates four groups of branch Spring normal use is supportted, and when integrally needing to rotate, iron block on four groups is separated into magnet block bottom end on four groups respectively, four groups Lower iron block separates four groups of lower sucting iron stone tops respectively, improves practicability.

A kind of hand-rail type of the utility model is countdowned corn measuring scale, the mounting means of all components described above, even It connects mode or set-up mode is common mechanical mode, and the specific structure of its all component, model and coefficient index are Its included technology, is implemented as long as can reach the equal of its advantages, therefore is not adding to repeat.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change It also should be regarded as the protection scope of the utility model into modification.

Claims (8)

1. The corn measuring scale 1. a kind of hand-rail type is countdowned, including tape of countdowning (1), bottom plate (2) and four pack supports (3), four groups The top of bracket (3) is separately mounted to bottom plate (2) bottom end front left side, forward right side, left rear side and right lateral side；It is characterized in that, also Including universal wheel (4), support plate (5), telescopic mast (6) and hydraulic cylinder (7), telescopic mast (6) top is connect with bottom plate (2) bottom end, Support plate (5) top is provided with the first placing groove, and is internally provided with the first ball bearing and the first limit in the first placing groove Piece, the first placing groove top are provided with first flap (8), and hydraulic cylinder (7) bottom end passes through first flap (8) and is inserted into the first ball Bearing inner is connect with the first limit film, and telescopic mast (6) bottom end is mounted on hydraulic cylinder (7) top output port；It further include preceding connection Column (9), handle (10), connection frame (11), preceding Rotational Cylindrical (12), connecting spring and rear Rotational Cylindrical (13), preceding connecting column (9) installation Front, handle (10) are mounted on connection frame (11) on the right side of bottom plate (2) top, the front end of preceding Rotational Cylindrical (12) and connection frame (11) it connects, the rear end of preceding Rotational Cylindrical (12) passes through preceding connecting column (9) and extend out on rear side of preceding connecting column (9) and before connecting spring End connection, connecting spring rear end is connect with rear Rotational Cylindrical (13) front end；Bottom plate (2) top left hand is horizontally arranged with fixing groove It (14), further include fixed link after preceding fixed link, multiple groups set spring (15) and multiple groups, after preceding fixed link, multiple groups cover spring (15) and multiple groups Fixed link is respectively positioned on fixing groove (14) inside, and fixed link is laterally installed in fixing groove (14) interior rear wall, multiple groups set after multiple groups The rear end of spring (15) is connect with fixed link after multiple groups respectively, and the front end of multiple groups set spring (15) is connect on rear side of preceding fixed link.
2. The corn measuring scale 2. a kind of hand-rail type as described in claim 1 is countdowned, which is characterized in that further include rear connecting column (16), rear connecting column (16) is mounted on rear on the right side of bottom plate (2) top, is provided with the second placement on rear connecting column (16) front side wall Slot, and it is internally provided with the second ball bearing and the second limit film in the second placing groove, second is provided on front side of the second placing groove Baffle (17).
3. The corn measuring scale 3. a kind of hand-rail type as claimed in claim 2 is countdowned, which is characterized in that further include rotation pipe (18), second flap (17) are passed through on rear side of rotation pipe (18) to be inserted into inside the second ball bearing and connect with the second limit film, Communication port is provided with and communicated on front side of rotation pipe (18), further includes adjustment spring group and fixed ring (19), adjustment spring group one end with Connection, the adjustment spring group other end are connect with fixed ring (19) on the inside of rotation pipe (18), be arranged in fixed ring (19) it is jagged, after It is internal that fixed ring (19) is installed on rear side of Rotational Cylindrical (13).
4. The corn measuring scale 4. a kind of hand-rail type as claimed in claim 3 is countdowned, which is characterized in that further include being buffered on four groups Buffer bar under bar, four groups of buffer springs (20) and four groups, buffer bar is separately mounted to the bottom end of four pack supports (3) on four groups, and four Group buffer spring (20) one end connect respectively with buffer bar on four groups, the other end of four groups of buffer springs (20) respectively with four groups Lower buffer bar connection, four groups of universal wheels (4) may be rotatably mounted at the lower section of buffer bar under four groups respectively.
5. The corn measuring scale 5. a kind of hand-rail type as claimed in claim 4 is countdowned, which is characterized in that further include that multiple groups are scalable It manages (21), the rear end of multiple groups telescopic tube (21) is connect with fixed link after multiple groups respectively, and the front end of multiple groups telescopic tube (21) is equal It is connect on rear side of preceding fixed link, multiple groups set spring (15) is set on the outside of multiple groups telescopic tube (21).
6. The corn measuring scale 6. a kind of hand-rail type as claimed in claim 5 is countdowned, which is characterized in that further include torque spring and Clamping plate (22), clamping plate (22) are mounted on rear Rotational Cylindrical (13) side wall by torque spring, and tape of countdowning (1) one end is installed on Between clamping plate (22) and rear Rotational Cylindrical (13).
7. The corn measuring scale 7. a kind of hand-rail type as claimed in claim 6 is countdowned, which is characterized in that further include iron on four groups Iron block under block, four groups of support springs (23) and four groups, the top of four groups of support springs (23) are connect with iron block on four groups respectively, and four The bottom end of group support spring (23) is connect with iron block under four groups respectively.
8. The corn measuring scale 8. a kind of hand-rail type as claimed in claim 7 is countdowned, which is characterized in that further include inhaling iron on four groups Stone (24) and four groups of lower sucting iron stones (25), magnet block (24) is separately mounted to bottom plate (2) bottom end front left side, the right side on four groups Front side, left rear side and right lateral side, four groups of lower sucting iron stones (25) are installed on support plate (5), and iron block adsorbs respectively on four groups Magnet block (24) bottom end on four groups, iron block is adsorbed on four groups of lower sucting iron stone (25) tops respectively under four groups.