CN207723810U - Material grasping formula suspension floor elastomer automatic installation apparatus - Google Patents

Abstract

The utility model discloses a kind of material grasping formula suspension floor elastomer automatic installation apparatus, belong to floor process device field, including elastomer conveying material path, press fitting component, floor feed table, it is pressed the top sliding setting that component conveys material path in elastomer, floor feed table slides setting in the lower section of press fitting component；Press fitting component includes the slide of sliding setting and lifts the pressure head component of setting on slide, and pressure head component includes at least one pressure head, and pressure head lower end has and the matched feeding cylinder of elastomer；Floor feed table, which is connected with, drives its floor feeding driving device to sliding below pressure head.Elastomer is installed by the device structure, avoids manually installed time-consuming and laborious, improves installation effectiveness.

Description

Material grasping formula suspension floor elastomer automatic installation apparatus

Technical field

The utility model is related to floor process device fields, in particular to a kind of material grasping formula suspension floor elastomer Automatic installation apparatus.

Background technology

Suspension floor is widely used in various sports centers, the surface of base that can directly mat formation in cement or pitch, anti-skidding to subtract It shakes, is attached with lock between every floorboard, installation is simple, can arbitrarily dismantle.Most suspension floors are by its bottom one The support leg support of the column or multilateral shape of body, but the support leg of plastics is directly contacted with ground, the elasticity on floor is bad, Damping performance is poor.

Suspension floor panel structure is improved to this, multiple mounting holes is configurated in the bottom on suspension floor, in mounting hole Elastomer, such as Fig. 1 are installed, elastomer stretches out installation hole end surface, contacts ground, and the elasticity formd between floor and ground is slow Layer is rushed, there is good elasticity, improve damping performance.And when assembling such floor, it needs elastomer being packed into suspension ground In each mounting hole in board bottom face, at present by manually installing one by one, time and effort consuming, labor intensity is big, and efficiency is low.

Utility model content

The purpose of this utility model is to provide a kind of material grasping formula suspension floor elastomer automatic installation apparatus, pass through machinery Structure installs elastomer, to solve the above problems.

To realize the utility model aim, the technical solution used for：Automatically installation is set material grasping formula suspension floor elastomer It is standby, including elastomer conveying material path, press fitting component, floor feed table, top sliding of the press fitting component in elastomer conveying material path Setting, floor feed table slide setting in the lower section of press fitting component；Press fitting component includes sliding the slide of setting and on slide The pressure head component of setting is lifted, pressure head component includes at least one pressure head, and pressure head lower end has and the matched feeding cylinder of elastomer； Floor feed table, which is connected with, drives its floor feeding driving device to sliding below pressure head.

Further, further include floor bracketing component, institute is respectively set at left and right sides of the feed table glide direction of floor State floor bracketing component；Floor bracketing component includes the retainer arms being arranged towards floor feed table telescopic slide, retainer arms It corresponds to above the feed table of floor.

Further, the retainer arms lifting setting.

Further, the floor bracketing component further includes bottom plate, expansion bracket, bracket and the guide holder of fixed setting；It stretches The sliding of contracting frame is set on bottom plate, and is connected with the expansion bracket driving element for driving it to be slided to floor feed table；Bracket is vertically slided Dynamic to be set on expansion bracket, retainer arms is fixed on bracket；Guide holder offers the guiding waist hole of arc, is provided on bracket Stretch into the sliding guide pin being oriented in waist hole.

While driving bracket flexible by the sliding of expansion bracket, bracket is according to guiding waist hole profile constraints on expansion bracket Realization slides vertically, that is, realizes the flexible and lifting of retainer arms, only need the unidirectional drive of expansion bracket driving element Complete the bidirectional-movement of retainer arms.

The pile floor stacked is supported in the retainer arms of both sides, and the retraction of retainer arms can be such that floor all falls on floor On feed table, a floor of bottom is in direct contact on the feed table of floor, and then retainer arms, which is stretched out, is inserted into bottom second It is lifted up below a floor and simultaneously, the floor of top is supported, is separated with the floor of bottom, the ground of bottom Plate is seen off by floor feed table, and the separation on bottom floor and other floors is realized by the bidirectional-movement of the mechanism, and is formed One determining deviation, make when the conveying movement of bottom floor will not due to contact with top floor friction and above driving floor with With movement, reach good sub-material effect.

Further, the elastomer conveying material path is at least one, and the discharge end of elastomer conveying material path, which is provided with, matches Expect mechanism；Ingredient sector includes the distributor plate of sliding setting, and there is distributor plate the discharge end that material path is conveyed with each elastomer to be connected to Dosage bunker；The glide direction of distributor plate is vertical with the elastomer conveying conveying direction of material path.

Further, the pressure head further includes rotational sleeve, compression bar；Compression bar is threaded through in rotational sleeve, and compression bar with turn Moving sleeve is circumferentially fixed；Compression bar offers vacuum absorption holes up and down, and rotational sleeve, feeding cylinder and pressure are stretched out in compression bar lower end Bar lower end is circumferentially fixed；Compression bar outer circle outside rotational sleeve has boss, and it is slow that feeding cylinder is equipped between boss and feeding cylinder Rush spring.

Further, the pressure head component further includes pressure head mounting plate；The rotational sleeve rotating support of each pressure head is in pressure head On mounting plate；Rotational sleeve is connected with the sleeve driving device of its rotation of driving.

Further, the floor feed table is equipped with floor location structure.

Further, the floor location structure includes fixed blend stop and/or active block stop；Fixed blend stop is sent set on floor Edge on charging tray；Active block stop corresponds to the alien invasion in floor feed table, and is connected with and it is driven to be moved to floor feed table Block driving element, block driving element is fixed on floor feed table bottom surface.

Further, the block driving element is cylinder, and the piston rod of cylinder is connected with pushing block, is equipped with below pushing block solid Due to the turning supporting seat of floor feed table bottom surface；The top of active block stop is the bumping post of corresponding floor feed table alien invasion, lower part For hinged seat；One end of hinged seat is hinged for axis pin with pushing block, and the other end is hinged with turning supporting seat position axis pin；Corresponding pin on pushing block The hinge hole of axis hinged place is strip-shaped hole.

The beneficial effects of the utility model：

1, press fitting component slides into elastomer conveying material path, is slid back into after picking up elastomer by the feeding cylinder of pressure head It is pressed position, floor feed table slides into the lower section of press fitting component, and general who has surrendered's elastomer is installed to the mounting hole on floor under pressure head, is carried High installation effectiveness and the degree of automation, reduce hand labor intensity；

2, the floor of stacking can be supported by floor bracketing component and decentralization, realize every time the floor positioned at bottom by Floor feed table send to press fitting component lower section and is installed, remaining floor waits for blowing next time by the support of floor bracketing component, So cycle, realizes the automatic feed dividing on floor, avoids being processed by being manually put into a floor every time, more efficient；

3, it can be moved by the distributor plate of ingredient sector, the elastomer drive in dosage bunker is moved to and each pressure head pair It answers, while the discharge port of each material path is also blocked by distributor plate, prevents the elastomer in material path from dropping out, pressure head slides into and distributor plate Each dosage bunker corresponds to, and material path discharging has obtained good be connected with pressure head feeding；

4, pressure head before press fitting by feeding jacket casing in elastomer upper end external stability elastomer, while by compression bar Vacuum absorption holes auxiliary adsorbs feeding to elastomer, realizes the crawl of elastomer；Compression bar is driven to turn by rotational sleeve when press fitting It is dynamic, and then the rotation of feeding cylinder is driven, it realizes during pressure head pushes, feeding cylinder drives elastomer rotation, realizes elastomer side It rotates side to push, elastomer, which turns to its outer circle concaveconvex structure, mutually to be agreed with and push in place, centering with floor upper installing hole inner wall Elastomer circumferential position completes installation；In press fitting, feeding cylinder lower face first contacts the installation hole end surface on floor, under continuing Cushioning effect is played in pressure, the compression of feeding cylinder buffer spring, and compression bar continues to push is pressed into floor by elastomer, realizes feeding and pressure Material, it is easy to operate.

Description of the drawings

Fig. 1 is the structural schematic diagram on the suspension floor for installing elastomer；

Fig. 2 is the structural schematic diagram of material grasping formula suspension floor provided by the utility model elastomer automatic installation apparatus；

Fig. 3 is the structural schematic diagram of the equipment with floor bracketing component, ingredient sector and floor outlet member；

Fig. 4 is the structural schematic diagram of pressure head component；

Fig. 5 is pressure head loaded on the sectional view on bottom plate；

Fig. 6 is the sectional view at A-A in Fig. 5；

Fig. 7 is rotating cylinder sleeve and the circumferentially fixed structural schematic diagram of compression bar；

Fig. 8 is the structural schematic diagram of floor bracketing component, does not contain bottom plate in figure；

Fig. 9 is the side view at the guide holder of floor bracketing component；

Figure 10 is the structural schematic diagram of ingredient sector；

Figure 11 is the structural schematic diagram of the floor feed table with floor location structure；

Figure 12 is the sectional view of floor location structure.

Specific implementation mode

The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.

Fig. 2 to Figure 12 shows material grasping formula suspension floor provided by the utility model elastomer automatic installation apparatus, including Elastomer conveys material path 1, press fitting component, floor feed table 2, and setting is slided in the top that press fitting component conveys material path 1 in elastomer, Floor feed table 2 slides setting in the lower section of press fitting component；Press fitting component includes the slide 3 of sliding setting and rises in slide 3 The pressure head component 4 of setting drops, and pressure head component 4 includes at least one pressure head 5, and 5 lower end of pressure head has and elastomer 45 is matched takes Barrel 6；Floor feed table 2 is connected with the floor feeding driving device 7 for driving it to be slided to 5 lower section of pressure head.See Fig. 2.It send on floor Material driving device 7 can be move linearly in the prior art driving element, such as motor screw mechanism.Slide 3 is defeated in elastomer 1 top sliding of feed channel, can be driven by cylinder.

This equipment further includes floor bracketing component 8, and floor is respectively set at left and right sides of 2 glide direction of floor feed table Bracketing component 8, such as Fig. 3；Floor bracketing component 8 includes the retainer arms 9 being arranged towards 2 telescopic slide of floor feed table, retainer Arms 9 corresponds to above floor feed table 2.The lifting setting of retainer arms 9, so as to which floor 46 is lifted up certain height Degree makes the floor 46 of bottom and other floors of top form a determining deviation, when avoiding the conveying movement of bottom floor because with The contact friction of top floor and drive top floor to follow movement.

Specifically, such as Fig. 8, Fig. 9.Floor bracketing component 8 further includes bottom plate 10, expansion bracket 11, bracket 12 and fixed setting Guide holder 13；The sliding of expansion bracket 11 is set on bottom plate 10, and is connected with the expansion bracket for driving it to be slided to floor feed table 2 and is driven Dynamic element 14；Bracket 12, which slides vertically, to be set on expansion bracket 11, and retainer arms 9 is fixed on bracket 12；Guide holder 13 opens up There is the guiding waist hole 15 of arc, the sliding guide pin 16 for stretching into and being oriented in waist hole 15 is provided on bracket 12.Only expansion bracket is needed to drive Dynamic element 14 is unidirectional to drive the bidirectional-movement that retainer arms 9 can be completed, and clever structure is simple, and respectively drives two-way fortune Dynamic mode is compared, and is shortened actuation time, and structure is simplified, is occupied little space.

Sliding guide pin 16 is respectively set in the both sides of bracket 12；Guide holder 13 is two, is located at the both sides of bracket 12, And it is corresponding with two sliding guide pins 16, the track of bilateral is oriented to, balance and stability.Sliding guide pin 16, which stretches into, is oriented to the one of waist hole 15 Outer circle is held to be equipped with roller 17, roller 17 is matched with waist hole 15 is oriented to, and operation is smooth, is easy to safeguard.The both sides of expansion bracket 11 It is vertically equipped with sliding rail and the sliding block on sliding rail, the both sides of bracket 12 are loaded on two side slides respectively, expansion bracket driving element 14 be cylinder.Expansion bracket 11 and bracket 12 can be the U-shaped part of two perpendicular distributions, and expansion bracket 11 is slidably set also by sliding rail It sets, the U-shaped two-arm sliding of bracket 12 is set to the U-shaped two-arm of expansion bracket 11.

Retainer arms 9 is adapted with floor 46, and the bottom surface on suspension floor is on-plane surface, such as Fig. 1, the ground of Fig. 1 signals mostly Upward for bottom surface, retainer arms 9 can correspond to the bottom surface concaveconvex structure setting on floor 46 to board status, be inserted into the recess of floor bottom surface. Bracketing component 8 outer cover in floor is set up defences shield.It is equipped with floor gib block 18 around floor feed table 2, floor support part can be loaded on On the bottom plate 10 of part 8, the corresponding floor gib block 18 in floor outer of setting helps pile up floor in retainer arms 9, be oriented to Limit, floor gib block 18 can use L-type material, guide surface that can fix soft material, such as rubber.

It is at least one that elastomer, which conveys material path 1, and the discharge end of elastomer conveying material path 1 is provided with ingredient sector, sees figure 10, ingredient sector includes the distributor plate 19 of sliding setting, and there is distributor plate 19 discharge end that material path 1 is conveyed with each elastomer to be connected to Dosage bunker 20；The glide direction of distributor plate 19 is vertical with the elastomer conveying conveying direction of material path 1, realizes each material path discharging Sub-material dispensing is corresponded with each pressure head 5, and pressure head 5 is slided to 20 top of dosage bunker.Ingredient sector is in slide 3 in Fig. 3 Lower section, with elastomer conveying material path 1 loaded on same pedestal, slide 3 also slides on the pedestal, installs and drives on slide 3 The motor screw mechanism that pressure head component 4 lifts, the sliding rail in Figure 10 in 1 both sides of elastomer conveying material path are the sliding rail of slide 3. The movement that distributor plate 19 can be arranged limits firmly.The feed end of elastomer conveying material path 1 can connect vibrating disk, and vibrating disk is existing skill 45 vibrating transportation of elastomer in disk to elastomer is conveyed material path 1 by common vibration feeding device in art by vibration.Elasticity The top for the discharge end and dosage bunker 20 that body conveys material path 1 is equipped with cover board 21, for preventing because distributor plate 19 is traversing and elastic The vibrating transportation of body 45 and so that the elastomer 45 at discharging is glanced off and is overturn, illustrate cover board in several material paths in Figure 10 21.Distributor plate 19 is driven by distributor plate driving element 44 and is slided, and can be cylinder.

Pressure head 5 further includes rotational sleeve 22, compression bar 23；Compression bar 23 is threaded through in rotational sleeve 22, and compression bar 23 and rotation Sleeve 22 is circumferentially fixed；Compression bar 23 offers vacuum absorption holes 24 up and down, and 23 lower end of compression bar is stretched out rotational sleeve 22, taken Barrel 6 and 23 lower end of compression bar are circumferentially fixed；Compression bar outer circle outside rotational sleeve 22 has boss 25, boss 25 and feeding cylinder Feeding cylinder buffer spring 26 is equipped between 6.Pressure head component 4 further includes pressure head mounting plate 27；The rotational sleeve 22 of each pressure head 5 rotates It is supported on pressure head mounting plate 27；Rotational sleeve 22 is connected with the sleeve driving device of its rotation of driving, sees Fig. 4.Rotational sleeve 22 are set to by bearing rotation on pressure head mounting plate 27, and bearing is furnished with bearing cap, sees Fig. 5.There is no Fig. 1 concave umbos for outer circle The elastomer 45 of structure can not use the pressure head or rotational sleeve 22 not to rotate.

Compression bar 2 slides axially setting in rotational sleeve 22, and is equipped between rotational sleeve 22 and the boss 25 of compression bar 23 Compression bar buffer spring 28 avoids compression bar 23 from rigidly pushing, because it is not clear whether be pressed onto bottom, passing through the knot during pushing Structure avoids the rigidity during pushing from pressing down and damage product or equipment, plays pushing cushioning effect.Compression bar 23 Rotational sleeve 22 is stretched out on top, and is equipped with axially position block 29 in 23 top outer circle of compression bar, and sleeve is relatively rotated for compression bar 23 Positioning when 22 axial movement prevents compression bar 23 from deviating from rotational sleeve 22.Compression bar 23 is axial in rotational sleeve 22 to be slided When drive the rigidity of compression bar 23 to push.

23 lower end of compression bar is removably connected with suction nozzle 30, can be to be threadedly coupled, suction nozzle 30 is located in feeding cylinder 6, suction nozzle 30 Offer the sucker 31 being connected to vacuum absorption holes 24.Elastomer accommodation space is formd between 30 lower end of suction nozzle and feeding cylinder 6. 30 lower face of suction nozzle matches with 45 upper surface of elastomer to be bonded.

Compression bar 23 and rotational sleeve 22 are circumferentially fixed, and feeding cylinder 6 and compression bar 23 are circumferentially fixed, can pass through radial bolt knot Structure mode realizes, can also be realized by notch etc. circumferentially fixed, is circumferentially fixed conventional structure means.It can turn 22 lower face of moving sleeve opens up the card slot 32 radially penetrated through, correspondingly, in 23 outer circle of compression bar or the setting of 25 outer circle of boss and card slot The matched section of 32 side walls realizes that compression bar 23 and rotational sleeve 22 are circumferentially fixed, see Fig. 7；It is arranged in 23 lower end both sides of compression bar The hole wall of section, 6 upper end of feeding cylinder is matched with 23 lower end of compression bar, then the endoporus of 6 upper end of feeding cylinder forms card slot, sees Fig. 6.It inhales First 30 radial dimension is more than 23 lower end of compression bar, and the card slot lower end of feeding cylinder 6 can be supported in the upper surface of suction nozzle 30.

Sleeve driving device includes motor, is connected on motor output shaft driving wheel is fixed on outside each rotational sleeve 22 Synchronizing wheel 33, the synchronous belt 34 that is set around on driving wheel and all synchronizing wheels 33.It is equipped with and synchronous belt 34 between adjacent pressure head 5 The tensioning wheel 35 of arranging, to ensure that synchronous belt 34 and each synchronizing wheel 33 are good fit, tensioning wheel 35 is loaded on pressure head mounting plate 27, And the hole for installing tensioning wheel 35 is strip-shaped hole, to adjust 35 position of tensioning wheel, pressure head mounting plate 27 is connected with driving, and it is lifted Mounting plate driving element, can by motor screw structure drive lifter plate lifting, pressure head mounting plate 27 be loaded on lifter plate.Pressure head Can support on mounting plate 27 has suspension 36,5 top of pressure head to be pierced by suspension 36, and axially position block 29 is above suspension 36, compression bar 23 Top connects gas-tpe fitting 37, for connecting vacuum tracheae.

Floor feed table 2 is equipped with floor location structure, the positioning after being fallen on floor feed table 2 for floor, to protect Card location status is accurately sent into below press fitting component, accurate to be pressed.Floor location structure includes fixed blend stop 38 and/or activity Block 39；Fixed blend stop 38 is set to the edge on floor feed table 2；Active block stop 39 corresponds to the alien invasion in floor feed table 2, And it is connected with the block driving element 40 for driving it to be moved to floor feed table 2, block driving element 40 is fixed on floor feeding 2 bottom surface of disk.

Fixed blend stop 38 and active block stop 39 can arrange in pairs or groups as needed, can both be determined only with one of which structure Position can also use the structure that the two combination is formed to realize the positioning on floor, such mode is shown in Figure 11.Wherein block drives Dynamic element 40 is cylinder, and the piston rod of cylinder is connected with pushing block 41, and 41 lower section of pushing block, which is equipped with, is fixed on 2 bottom surface of floor feed table Turning supporting seat 42；The top of active block stop 39 is the bumping post of 2 alien invasion of corresponding floor feed table, and lower part is hinged seat；Hinged seat One end and pushing block 41 it is hinged for axis pin, the other end is hinged for axis pin with turning supporting seat 42；Axis pin hinged place is corresponded on pushing block 41 Hinge hole be strip-shaped hole, see Figure 12.After floor drops on floor feed table 2, cylinder piston rod, which is retracted, drives active block stop 39 turn over, bumping post beat floor side by floor to fixed blend stop 38 against, fixed to position floor, in entire conveying and During press fitting, floor is in stable stationary state.

Equipment may also include floor outlet member, and setting is between floor bracketing component 8 and press fitting component, floor discharging portion Part includes the cylinder that holder, discharging pushing pedal 43 and driving discharging pushing pedal 43 are stretched out, and cylinder is fixed on holder, discharging pushing pedal 43 with Floor on floor feed table 2 corresponds to.Mounted floor is taken back by floor feed table 2, is moved at the outlet member of floor, goes out Floor is released in the material stretching of push plate 43, and the hopper for accepting floor or discharging slide unit can be arranged in the offside of floor outlet member.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, there can be various modifications and variations in the spirit and principles of the utility model, these are equivalent Modification or replacement etc., are all contained within the scope of protection of the utility model.

Claims (10)

1. material grasping formula suspension floor elastomer automatic installation apparatus, which is characterized in that including elastomer conveying material path, press-fit portion Setting is slided in part, floor feed table, the top that press fitting component conveys material path in elastomer, and floor feed table is in the case where being pressed component Side's sliding setting；Press fitting component includes the slide of sliding setting and lifts the pressure head component of setting on slide, pressure head component packet At least one pressure head is included, pressure head lower end has and the matched feeding cylinder of elastomer；Floor feed table, which is connected with, drives it to pressure head The floor feeding driving device of lower section sliding.

2. material grasping formula suspension floor according to claim 1 elastomer automatic installation apparatus, which is characterized in that further include ground The floor bracketing component is respectively set in plate bracketing component at left and right sides of the feed table glide direction of floor；Floor support part Part includes the retainer arms being arranged towards floor feed table telescopic slide, and retainer arms corresponds to above the feed table of floor.

3. material grasping formula suspension floor according to claim 2 elastomer automatic installation apparatus, which is characterized in that the retainer Arms lifting setting.

4. material grasping formula suspension floor according to claim 3 elastomer automatic installation apparatus, which is characterized in that the floor Bracketing component further includes bottom plate, expansion bracket, bracket and the guide holder of fixed setting；Expansion bracket sliding is set on bottom plate, and is connected There is the expansion bracket driving element for driving it to be slided to floor feed table；Bracket, which slides vertically, to be set on expansion bracket, retainer arms It is fixed on bracket；Guide holder offers the guiding waist hole of arc, and the sliding stretched into and be oriented in waist hole is provided on bracket and is oriented to Pin.

5. material grasping formula suspension floor according to claim 1 elastomer automatic installation apparatus, which is characterized in that the elasticity It is at least one that body, which conveys material path, and the discharge end of elastomer conveying material path is provided with ingredient sector；Ingredient sector includes that sliding is set The distributor plate set, distributor plate have the dosage bunker that the discharge end that material path is conveyed with each elastomer is connected to；The glide direction of distributor plate It is vertical with the elastomer conveying conveying direction of material path.

6. material grasping formula suspension floor according to claim 1 elastomer automatic installation apparatus, which is characterized in that the pressure head Further include rotational sleeve, compression bar；Compression bar is threaded through in rotational sleeve, and compression bar and rotational sleeve are circumferentially fixed；Compression bar offers Rotational sleeve is stretched out in vacuum absorption holes up and down, compression bar lower end, and feeding cylinder and compression bar lower end are circumferentially fixed；Positioned at turning set Compression bar outer circle outside cylinder has boss, and feeding cylinder buffer spring is equipped between boss and feeding cylinder.

7. material grasping formula suspension floor according to claim 6 elastomer automatic installation apparatus, which is characterized in that the pressure head Component further includes pressure head mounting plate；The rotational sleeve rotating support of each pressure head is on pressure head mounting plate；Rotational sleeve is connected with drive Move the sleeve driving device of its rotation.

8. material grasping formula suspension floor according to claim 1 elastomer automatic installation apparatus, which is characterized in that the floor Feed table is equipped with floor location structure.

9. material grasping formula suspension floor according to claim 8 elastomer automatic installation apparatus, which is characterized in that the floor Location structure includes fixed blend stop and/or active block stop；Fixed blend stop is set to the edge on the feed table of floor；Active block stop corresponds to The alien invasion of feed table on floor, and it is connected with the block driving element for driving it to be moved to floor feed table, block driving member Part is fixed on floor feed table bottom surface.

10. material grasping formula suspension floor according to claim 9 elastomer automatic installation apparatus, which is characterized in that the gear Block driving element is cylinder, and the piston rod of cylinder is connected with pushing block, is equipped with below pushing block and is fixed on turning over for floor feed table bottom surface Turn bearing；The top of active block stop is the bumping post of corresponding floor feed table alien invasion, and lower part is hinged seat；One end of hinged seat with Pushing block is hinged for axis pin, and the other end is hinged with turning supporting seat position axis pin；The hinge hole that axis pin hinged place is corresponded on pushing block is bar shaped Hole.