A kind of bridge floor repairing flattening apparatus
Technical field
The present invention relates to a kind of flattening apparatus more particularly to a kind of bridge floor repairing flattening apparatus.
Background technology
Bridge construction builds the process of bridge according to design content;Refer mainly to bridge Construction Technology and construction organization, construction
The contents such as management, construction quality.
When bridge floor is cheated, be required for repairing bridge floor with concrete, and concrete be located at hole in when, need to be whole by its
It is flat, to facilitate vehicle to pass through, when people pour into concrete in hole at present, can use scoop or other tools to concrete into
Row is smooth, needs to expend more labour in concrete formation process, and is not fine to concrete planarization effects, and leveling mixes
Solidifying soil is not sufficiently strong, and cracking is easy after causing concrete to be dried.
Therefore there is an urgent need for research and development it is a kind of it is time saving and energy saving, leveling effect is good, the more solid bridge floor repairing of the concrete of leveling is with flat
Finishing equipment.
Invention content
When manually being flattened to concrete to overcome, need to expend that more labour, leveling are ineffective, leveling it is mixed
The solidifying acarpous disadvantage of soil, technical problems to be solved:Offer one kind is time saving and energy saving, leveling effect is good, and the concrete of leveling is more
Solid bridge floor repairing flattening apparatus.
Technical solution is:A kind of bridge floor repairing flattening apparatus includes bottom plate, wheel, pushing hands, mounting plate, motor, turns
Disk, T-bar, strut, top plate, sleeve, motion bar, transverse slat, connecting rod and connecting rod, the symmetrical installation in the bottom base plate left and right sides
There is a wheel, be provided with first through hole on the right side of bottom plate, the left and right sides is fitted with strut at the top of bottom plate, between the strut top of the left and right sides
Top plate is installed, top plate bottom left and right sides symmetrical expression is equipped with sleeve, and sleeve is located between the strut of the left and right sides, sleeve
Interior to be equipped with motion bar, motion bar passes through first through hole, and transverse slat is equipped between the motion bar bottom end of the left and right sides, and transverse slat is located at first
Below through-hole, transverse slat top center rotary type is equipped with connecting rod, and connecting rod passes through first through hole, the installation of bottom plate top left side
There are mounting plate, mounting plate to be located on the left of the strut of left side, motor is installed at the top of mounting plate, the output shaft of motor is connected by shaft coupling
It is connected to turntable, turntable leading flank eccentric position rotary type is equipped with T-bar, and T-bar bottom end connects with connecting rod top rotary type
It connects, top plate bottom central rotational formula is equipped with connecting rod, and connecting rod bottom end is connect with T-bar top rotary type, bottom plate top right side
Pushing hands is installed, pushing hands is located on the right side of the strut of right side.
Further include having agitating device as the improvement of said program, agitating device includes sliding rail, sliding block, rack, inserts
Bar, the first spring and half mould gear ring, bottom plate left side are provided with the second through-hole, and left side vertical is equipped with sliding rail, sliding rail position at the top of bottom plate
On the left of mounting plate, being set on sliding rail there are two the sliding block being slidably matched with it, the sliding block right side of upper and lower both sides is equipped with rack,
Rack bottom end is equipped with inserted link, and inserted link lower part is located in the second through-hole, and the first bullet is connected between rack bottom end and bottom plate top
Spring, for the first spring pocket on inserted link, turntable lateral surface is equipped with half mould gear ring, and half mould gear ring is located on the right side of rack, half mould gear ring
It is engaged with rack.
Further include having bar, guide rod, second spring, sliding sleeve, montant and movable plate, bottom plate as the improvement of said program
Left side is provided with third through-hole, and third through-hole is between first through hole and the second through-hole, mounting plate right side lower part and left side branch
Guide rod is installed, guide rod is equipped with the sliding sleeve coordinated with it, montant is equipped in the middle part of sliding sleeve leading flank, erects between bar left lower
Bar passes through third through-hole, montant bottom end to be equipped with movable plate, and movable plate is located at below bottom plate, montant right upper portion and left side strut
Multiple second springs are connected between left lower, T-bar bottom left is equipped with bar, and bar is located on the right side of montant.
Further include having fixed plate, third spring and contact block as the improvement of said program, the installation of sliding rail right side top
There are fixed plate, fixed plate bottom to be connected with third spring, third spring bottom end is equipped with contact block, and contact block is located on rack
Side.
The personnel of being operated first hold pushing hands and push the present apparatus to be moved on bridge floor mend by wheel, and transverse slat is made to be located at
Right over mend, you can start motor reversal, motor reversal drives turntable reversion, turntable reversion to drive connecting rod by T-bar
It swings with connecting rod, and then connecting rod swings and moved up and down with motion plate, transverse slat, which moves up and down, mixes mend
Solidifying soil is beaten, and then concrete is compacted flatten.After concrete flattens, you can close motor, move the present apparatus not position
In on mend.
Because further including having agitating device, agitating device includes sliding rail, sliding block, rack, inserted link, the first spring and half mould
Gear ring, bottom plate left side are provided with the second through-hole, and left side vertical is equipped with sliding rail at the top of bottom plate, and sliding rail is located on the left of mounting plate, sliding rail
On set there are two the sliding block that is slidably matched with it, the sliding block right side of upper and lower both sides is equipped with rack, and rack bottom end is equipped with slotting
Bar, inserted link lower part are located in the second through-hole, and the first spring is connected between rack bottom end and bottom plate top, and the first spring pocket is being inserted
On bar, turntable lateral surface is equipped with half mould gear ring, and half mould gear ring is located on the right side of rack, and half mould gear ring is engaged with rack, works as motor
When startup, turntable inverts while half mould gear ring being driven to invert, and because of the effect of the first spring, the reversion of half mould gear ring is with above and below carry-over bar
Mobile, rack, which moves up and down, drives inserted link to move up and down, and inserted link, which moves up and down, stirs concrete, the concrete after agitation
It is compacted flatten by transverse slat.After concrete flattens, you can close motor.It so, it is possible to stir evenly concrete, make transverse slat pair
Concrete is compacted more preferable.
Because further including having bar, guide rod, second spring, sliding sleeve, montant and movable plate, it is logical that third is provided on the left of bottom plate
Hole, third through-hole is between first through hole and the second through-hole, between mounting plate right side lower part and left side strut left lower
Guide rod is installed, guide rod is equipped with the sliding sleeve coordinated with it, and montant is equipped in the middle part of sliding sleeve leading flank, and montant is logical across third
Hole, montant bottom end are equipped with movable plate, and movable plate is located at below bottom plate, between montant right upper portion and left side strut left lower
Multiple second springs are connected with, T-bar bottom left is equipped with bar, and bar is located on the right side of montant, when the present apparatus is located at repairing
When place is mobile, movable plate is contacted with concrete, and T-bar moves left and right drive bar and moves left and right, because of the effect of second spring,
Bar, which moves left and right, drives montant to move left and right, and montant, which moves left and right, drives movable plate to move left and right, and movable plate moves left and right pair
Concrete carries out preliminary leveling, so transverse slat again compacting leveling is carried out to concrete.When motor is closed, movable plate
Also with regard to stopping moving left and right.In this way, concrete can be made to be leveled more preferably.
Because further including having fixed plate, third spring and contact block, sliding rail right side top is equipped with fixed plate, fixed plate
Bottom is connected with third spring, and third spring bottom end is equipped with contact block, and contact block is located above rack, when rack moves up and down
Drive inserted link when moving up and down, rack is contacted with contact block, and because of the effect of third spring, contact block is to rack into row buffering.Such as
This, can preventing rack from moving up, stroke is excessive to be caused to fall off.
The present invention can stir concrete by agitating device, so that concrete is leveled more solid, and pass through work
Movable plate can carry out concrete preliminary leveling, thus it is more preferable to the leveling effect of concrete, reach time saving and energy saving, leveling
Effect is good, the more solid effect of the concrete of leveling.
Description of the drawings
Fig. 1 is the first main structure diagram of the present invention.
Fig. 2 is second of main structure diagram of the present invention.
Fig. 3 is the third main structure diagram of the present invention.
In figure:1 ... bottom plate, 2 ... wheels, 3 ... first through hole, 4 ... pushing hands, 5 ... mounting plates, 6 ... motors, 7 ... turntables,
8 ... T-bars, 9 ... struts, 10 ... top plates, 11 ... sleeves, 12 ... motion bars, 13 ... transverse slats, 14 ... connecting rods, 15 ... connecting rods,
16 ... agitating devices, 161 ... sliding rails, 162 ... sliding blocks, 163 ... racks, 164 ... inserted links, 165 ... first springs, 166 ... second
Through-hole, 167 ... half mould gear rings, 17 ... bars, 18 ... guide rods, 19 ... second springs, 20 ... sliding sleeves, 21 ... third through-holes, 22 ...
Montant, 23 ... movable plates, 24 ... fixed plates, 25 ... third springs, 26 ... contact blocks.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
A kind of bridge floor repairing flattening apparatus includes as shown in Figs. 1-3 bottom plate 1, wheel 2, pushing hands 4, mounting plate 5, electricity
Machine 6, turntable 7, T-bar 8, strut 9, top plate 10, sleeve 11, motion bar 12, transverse slat 13, connecting rod 14 and connecting rod 15,1 bottom of bottom plate
Portion left and right sides symmetrical expression is equipped with wheel 2, and 1 right side of bottom plate is provided with first through hole 3, and the 1 top left and right sides of bottom plate is all installed
There is strut 9, top plate 10 is installed between 9 top of left and right sides strut, 10 bottom of top plate left and right sides symmetrical expression is equipped with set
Cylinder 11, sleeve 11 is located between the strut 9 of the left and right sides, and motion bar 12 is equipped in sleeve 11, and motion bar 12 passes through first through hole
3, transverse slat 13 is installed, transverse slat 13 is located at 3 lower section of first through hole, 13 top center of transverse slat between 12 bottom end of left and right sides motion bar
Rotary type is equipped with connecting rod 15, and connecting rod 15 passes through first through hole 3,1 top left side of bottom plate to be equipped with mounting plate 5, installs
Plate 5 is located at 9 left side of left side strut, and 5 top of mounting plate is equipped with motor 6, and the output shaft of motor 6 is connected with turntable by shaft coupling
7,7 leading flank eccentric position rotary type of turntable is equipped with T-bar 8, and 8 bottom end of T-bar is connect with 15 top rotary type of connecting rod,
10 bottom central rotational formula of top plate is equipped with connecting rod 14, and 14 bottom end of connecting rod is connect with 8 top rotary type of T-bar, 1 top of bottom plate
Right side is equipped with pushing hands 4, and pushing hands 4 is located at 9 right side of right side strut.
Embodiment 2
A kind of bridge floor repairing flattening apparatus includes as shown in Figs. 1-3 bottom plate 1, wheel 2, pushing hands 4, mounting plate 5, electricity
Machine 6, turntable 7, T-bar 8, strut 9, top plate 10, sleeve 11, motion bar 12, transverse slat 13, connecting rod 14 and connecting rod 15,1 bottom of bottom plate
Portion left and right sides symmetrical expression is equipped with wheel 2, and 1 right side of bottom plate is provided with first through hole 3, and the 1 top left and right sides of bottom plate is all installed
There is strut 9, top plate 10 is installed between 9 top of left and right sides strut, 10 bottom of top plate left and right sides symmetrical expression is equipped with set
Cylinder 11, sleeve 11 is located between the strut 9 of the left and right sides, and motion bar 12 is equipped in sleeve 11, and motion bar 12 passes through first through hole
3, transverse slat 13 is installed, transverse slat 13 is located at 3 lower section of first through hole, 13 top center of transverse slat between 12 bottom end of left and right sides motion bar
Rotary type is equipped with connecting rod 15, and connecting rod 15 passes through first through hole 3,1 top left side of bottom plate to be equipped with mounting plate 5, installs
Plate 5 is located at 9 left side of left side strut, and 5 top of mounting plate is equipped with motor 6, and the output shaft of motor 6 is connected with turntable by shaft coupling
7,7 leading flank eccentric position rotary type of turntable is equipped with T-bar 8, and 8 bottom end of T-bar is connect with 15 top rotary type of connecting rod,
10 bottom central rotational formula of top plate is equipped with connecting rod 14, and 14 bottom end of connecting rod is connect with 8 top rotary type of T-bar, 1 top of bottom plate
Right side is equipped with pushing hands 4, and pushing hands 4 is located at 9 right side of right side strut.
Further include having agitating device 16, agitating device 16 includes sliding rail 161, sliding block 162, rack 163, inserted link 164,
One spring 165 and half mould gear ring 167,1 left side of bottom plate are provided with the second through-hole 166, and 1 top left side of bottom plate is vertically-mounted sliding rail
161, sliding rail 161 is located at 5 left side of mounting plate, is set there are two the sliding block 162 being slidably matched with it on sliding rail 161, upper and lower both sides
162 right side of sliding block is equipped with rack 163, and 163 bottom end of rack is equipped with inserted link 164, and 164 lower part of inserted link is located at the second through-hole
In 166,163 bottom end of rack and bottom plate are connected with the first spring 165 between 1 top, and the first spring 165 is sleeved on inserted link 164, is turned
7 lateral surface of disk is equipped with half mould gear ring 167, and half mould gear ring 167 is located at 163 right side of rack, and half mould gear ring 167 is nibbled with rack 163
It closes.
Embodiment 3
A kind of bridge floor repairing flattening apparatus includes as shown in Figs. 1-3 bottom plate 1, wheel 2, pushing hands 4, mounting plate 5, electricity
Machine 6, turntable 7, T-bar 8, strut 9, top plate 10, sleeve 11, motion bar 12, transverse slat 13, connecting rod 14 and connecting rod 15,1 bottom of bottom plate
Portion left and right sides symmetrical expression is equipped with wheel 2, and 1 right side of bottom plate is provided with first through hole 3, and the 1 top left and right sides of bottom plate is all installed
There is strut 9, top plate 10 is installed between 9 top of left and right sides strut, 10 bottom of top plate left and right sides symmetrical expression is equipped with set
Cylinder 11, sleeve 11 is located between the strut 9 of the left and right sides, and motion bar 12 is equipped in sleeve 11, and motion bar 12 passes through first through hole
3, transverse slat 13 is installed, transverse slat 13 is located at 3 lower section of first through hole, 13 top center of transverse slat between 12 bottom end of left and right sides motion bar
Rotary type is equipped with connecting rod 15, and connecting rod 15 passes through first through hole 3,1 top left side of bottom plate to be equipped with mounting plate 5, installs
Plate 5 is located at 9 left side of left side strut, and 5 top of mounting plate is equipped with motor 6, and the output shaft of motor 6 is connected with turntable by shaft coupling
7,7 leading flank eccentric position rotary type of turntable is equipped with T-bar 8, and 8 bottom end of T-bar is connect with 15 top rotary type of connecting rod,
10 bottom central rotational formula of top plate is equipped with connecting rod 14, and 14 bottom end of connecting rod is connect with 8 top rotary type of T-bar, 1 top of bottom plate
Right side is equipped with pushing hands 4, and pushing hands 4 is located at 9 right side of right side strut.
Further include having agitating device 16, agitating device 16 includes sliding rail 161, sliding block 162, rack 163, inserted link 164,
One spring 165 and half mould gear ring 167,1 left side of bottom plate are provided with the second through-hole 166, and 1 top left side of bottom plate is vertically-mounted sliding rail
161, sliding rail 161 is located at 5 left side of mounting plate, is set there are two the sliding block 162 being slidably matched with it on sliding rail 161, upper and lower both sides
162 right side of sliding block is equipped with rack 163, and 163 bottom end of rack is equipped with inserted link 164, and 164 lower part of inserted link is located at the second through-hole
In 166,163 bottom end of rack and bottom plate are connected with the first spring 165 between 1 top, and the first spring 165 is sleeved on inserted link 164, is turned
7 lateral surface of disk is equipped with half mould gear ring 167, and half mould gear ring 167 is located at 163 right side of rack, and half mould gear ring 167 is nibbled with rack 163
It closes.
Further include having bar 17, guide rod 18, second spring 19, sliding sleeve 20, montant 22 and movable plate 23,1 left side of bottom plate is opened
There are third through-hole 21, third through-hole 21 to be located between first through hole 3 and the second through-hole 166,5 right side lower part of mounting plate and left side
Guide rod 18 is installed, guide rod 18 is equipped with the sliding sleeve 20 coordinated with it, pacifies in the middle part of 20 leading flank of sliding sleeve between 9 left lower of strut
Equipped with montant 22, montant 22 passes through third through-hole 21,22 bottom end of montant to be equipped with movable plate 23, and movable plate 23 is located under bottom plate 1
It is square, multiple second springs 19,8 bottom left of T-bar peace are connected between 9 left lower of 22 right upper portion of montant and left side strut
Equipped with bar 17, bar 17 is located at 22 right side of montant.
Embodiment 4
A kind of bridge floor repairing flattening apparatus includes as shown in Figs. 1-3 bottom plate 1, wheel 2, pushing hands 4, mounting plate 5, electricity
Machine 6, turntable 7, T-bar 8, strut 9, top plate 10, sleeve 11, motion bar 12, transverse slat 13, connecting rod 14 and connecting rod 15,1 bottom of bottom plate
Portion left and right sides symmetrical expression is equipped with wheel 2, and 1 right side of bottom plate is provided with first through hole 3, and the 1 top left and right sides of bottom plate is all installed
There is strut 9, top plate 10 is installed between 9 top of left and right sides strut, 10 bottom of top plate left and right sides symmetrical expression is equipped with set
Cylinder 11, sleeve 11 is located between the strut 9 of the left and right sides, and motion bar 12 is equipped in sleeve 11, and motion bar 12 passes through first through hole
3, transverse slat 13 is installed, transverse slat 13 is located at 3 lower section of first through hole, 13 top center of transverse slat between 12 bottom end of left and right sides motion bar
Rotary type is equipped with connecting rod 15, and connecting rod 15 passes through first through hole 3,1 top left side of bottom plate to be equipped with mounting plate 5, installs
Plate 5 is located at 9 left side of left side strut, and 5 top of mounting plate is equipped with motor 6, and the output shaft of motor 6 is connected with turntable by shaft coupling
7,7 leading flank eccentric position rotary type of turntable is equipped with T-bar 8, and 8 bottom end of T-bar is connect with 15 top rotary type of connecting rod,
10 bottom central rotational formula of top plate is equipped with connecting rod 14, and 14 bottom end of connecting rod is connect with 8 top rotary type of T-bar, 1 top of bottom plate
Right side is equipped with pushing hands 4, and pushing hands 4 is located at 9 right side of right side strut.
Further include having agitating device 16, agitating device 16 includes sliding rail 161, sliding block 162, rack 163, inserted link 164,
One spring 165 and half mould gear ring 167,1 left side of bottom plate are provided with the second through-hole 166, and 1 top left side of bottom plate is vertically-mounted sliding rail
161, sliding rail 161 is located at 5 left side of mounting plate, is set there are two the sliding block 162 being slidably matched with it on sliding rail 161, upper and lower both sides
162 right side of sliding block is equipped with rack 163, and 163 bottom end of rack is equipped with inserted link 164, and 164 lower part of inserted link is located at the second through-hole
In 166,163 bottom end of rack and bottom plate are connected with the first spring 165 between 1 top, and the first spring 165 is sleeved on inserted link 164, is turned
7 lateral surface of disk is equipped with half mould gear ring 167, and half mould gear ring 167 is located at 163 right side of rack, and half mould gear ring 167 is nibbled with rack 163
It closes.
Further include having bar 17, guide rod 18, second spring 19, sliding sleeve 20, montant 22 and movable plate 23,1 left side of bottom plate is opened
There are third through-hole 21, third through-hole 21 to be located between first through hole 3 and the second through-hole 166,5 right side lower part of mounting plate and left side
Guide rod 18 is installed, guide rod 18 is equipped with the sliding sleeve 20 coordinated with it, pacifies in the middle part of 20 leading flank of sliding sleeve between 9 left lower of strut
Equipped with montant 22, montant 22 passes through third through-hole 21,22 bottom end of montant to be equipped with movable plate 23, and movable plate 23 is located under bottom plate 1
It is square, multiple second springs 19,8 bottom left of T-bar peace are connected between 9 left lower of 22 right upper portion of montant and left side strut
Equipped with bar 17, bar 17 is located at 22 right side of montant.
Further include having fixed plate 24, third spring 25 and contact block 26,161 right side top of sliding rail is equipped with fixed plate
24,24 bottom of fixed plate is connected with third spring 25, and 25 bottom end of third spring is equipped with contact block 26, and contact block 26 is located at rack
163 tops.
The personnel of being operated first hold pushing hands 4 and push the present apparatus to be moved on bridge floor mend by wheel 2, and make transverse slat 13
Right over mend, you can start motor 6 and invert, the reversion of motor 6 drives turntable 7 to invert, and the reversion of turntable 7 passes through T-bar 8
Connecting rod 14 and connecting rod 15 is driven to swing, and then connecting rod 15 swings and moved up and down with motion plate 13, on transverse slat 13
The concrete of mend is beaten in lower movement, and then concrete is compacted flatten.After concrete flattens, you can close electricity
Machine 6, the mobile present apparatus are not located on mend.
Because further including having agitating device 16, agitating device 16 includes sliding rail 161, sliding block 162, rack 163, inserted link
164, the first spring 165 and half mould gear ring 167,1 left side of bottom plate are provided with the second through-hole 166, and 1 top left side of bottom plate is vertically-mounted to be had
Sliding rail 161, sliding rail 161 are located at the left side of mounting plate 5, are set on sliding rail 161 there are two the sliding block 162 being slidably matched with it, upper and lower two
162 right side of sliding block of side is equipped with rack 163, and 163 bottom end of rack is equipped with inserted link 164, and it is logical that 164 lower part of inserted link is located at second
In hole 166,163 bottom end of rack and bottom plate are connected with the first spring 165 between 1 top, and the first spring 165 is sleeved on inserted link 164,
7 lateral surface of turntable is equipped with half mould gear ring 167, and half mould gear ring 167 is located at 163 right side of rack, half mould gear ring 167 and rack 163
Engagement, when motor 6 starts, turntable 7 inverts while half mould gear ring 167 being driven to invert, because of the effect of the first spring 165, half mould
The reversion band carry-over bar 163 of gear ring 167 moves up and down, and rack 163, which moves up and down, drives inserted link 164 to move up and down, about 164 inserted link
Movement stirs concrete, and the concrete after agitation is compacted flatten by transverse slat 13.After concrete flattens, you can close electricity
Machine 6.It so, it is possible to stir evenly concrete, so that transverse slat 13 is compacted concrete more preferable.
Because further including having bar 17, guide rod 18, second spring 19, sliding sleeve 20, montant 22 and movable plate 23, bottom plate 1 is left
Side is provided with third through-hole 21, and third through-hole 21 is located between first through hole 3 and the second through-hole 166,5 right side lower part of mounting plate with
Guide rod 18 is installed, guide rod 18 is equipped with the sliding sleeve 20 coordinated with it, in 20 leading flank of sliding sleeve between 9 left lower of left side strut
Portion is equipped with montant 22, and montant 22 passes through third through-hole 21,22 bottom end of montant to be equipped with movable plate 23, and movable plate 23 is located at bottom plate
Below 1, multiple second springs 19 are connected between 9 left lower of 22 right upper portion of montant and left side strut, 8 bottom of T-bar is left
Side is equipped with bar 17, and bar 17 is located at 22 right side of montant, when the present apparatus is located at mend movement, movable plate 23 and concrete
Contact, and T-bar 8 moves left and right and bar 17 is driven to move left and right, because of the effect of second spring 19, bar 17 moves left and right drive
Montant 22 moves left and right, montant 22 move left and right drive movable plate 23 move left and right, movable plate 23 move left and right to concrete into
The preliminary leveling of row, so transverse slat 13 again compacting leveling is carried out to concrete.When motor 6 is closed, movable plate 23
With regard to stopping moving left and right.In this way, concrete can be made to be leveled more preferably.
Because further including having fixed plate 24, third spring 25 and contact block 26,161 right side top of sliding rail is equipped with fixation
Plate 24,24 bottom of fixed plate are connected with third spring 25, and 25 bottom end of third spring is equipped with contact block 26, and contact block 26 is located at tooth
163 top of item, when rack 163 moves up and down, and inserted link 164 is driven to move up and down, rack 163 is contacted with contact block 26, because of third
The effect of spring 25, contact block 26 is to rack 163 into row buffering.In this way, can prevent rack 163 from moving up, stroke is excessive to be caused
It falls off.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.