CN107842014A

CN107842014A - A kind of tamping unit of energy foundation ditch backfill

Info

Publication number: CN107842014A
Application number: CN201711075325.6A
Authority: CN
Inventors: 王益忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-06
Filing date: 2017-11-06
Publication date: 2018-03-27

Abstract

The invention discloses a kind of tamping unit of energy foundation ditch backfill, including moving body, recessed caulking groove is provided with moving body bottom end face, the sliding chamber of lifting is provided with moving body on the upside of recessed caulking groove, the sliding intracavitary of lifting is slidably connected with compacting drive mechanism, the lift drive mechanism to be connected with compacting drive mechanism power is provided with the moving body inner wall of the sliding top of chamber of lifting, the promotion link gear to be connected with compacting drive mechanism power is provided with moving body inner wall on the right side of the sliding chamber of lifting, tamp and driving groove is provided with drive mechanism bottom end face, the first drive cavity is provided with compacting drive mechanism inner wall on the right side of driving groove, the bottom position of compacting drive mechanism its right end face is provided with deep gouge, the extended first rotating shaft in left and right is slidably connected with driving groove；The present invention improves the efficiency of Ramming operation, and time saving and energy saving, is moved easily, and reduces the purchase cost of equipment.

Description

A kind of tamping unit of energy foundation ditch backfill

Technical field

The present invention relates to technical field of construction equipment, a kind of tamping unit of energy foundation ditch backfill.

Background technology

Nowadays with the quickening of people's rhythm of life, many soils will all face reclamation of wasteland building, be tamped in building Machinery is essential, but existing rammer compacter volume is big, narrow and small to some landform, and the bad place of soil property can not be normal Work, in addition, in construction engineering, it is often necessary to banketed to ground, foundation ditch (groove) or backfilling of pipe canal, indoor terrace return Fill out, outdoor sports backfill finishing operations, but existing ballast consolidating machine can not carry out the work of foundation ditch backfill, it is necessary to independent Bulldozer carry out ground and banket work, Ramming operation is then carried out to banketing for ground by ballast consolidating machine, its step is numerous It is trivial, to waste time and energy, travelling performance is poor, adds the expense of equipment purchasing, adds the time of shut-down, meanwhile, improve maintenance Cost.

The content of the invention

The technical problems to be solved by the invention are to provide a kind of tamping unit of energy foundation ditch backfill, and it can solve the problem that The problem of stating now in the art.

The present invention is achieved through the following technical solutions：A kind of tamping unit of energy foundation ditch backfill of the present invention, Recessed caulking groove is provided with including moving body, in the moving body bottom end face, in the moving body on the upside of the recessed caulking groove Provided with the sliding chamber of lifting, the sliding intracavitary of lifting is slidably connected with compacting drive mechanism, described to lift the described of sliding top of chamber The lift drive mechanism to be connected with the compacting drive mechanism power, the lifting are provided with moving body inner wall It is provided with the moving body inner wall on the right side of sliding chamber and joins to the promotion being connected with the compacting drive mechanism power Motivation structure, the compacting drive mechanism bottom end face is interior to be provided with driving groove, the compacting driving driven on the right side of groove The first drive cavity is provided with mechanism inner wall, the bottom position of the compacting drive mechanism its right end face is provided with deep gouge, described The extended first rotating shaft in left and right is slidably connected with driving groove, it is convex to be circumferentially installed with top pressure in the first rotating shaft Wheel, the first rotating shaft left side extending end and the first motor power are connected, and first outer surface of motor is embedded in described In driving groove inner left wall and it is fixedly connected, extension is through the driving groove and described first on the right side of the first rotating shaft The compacting drive mechanism inner wall and the connection that is rotatably assorted between drive cavity, first rotating shaft right side extending end stretch into In first drive cavity and end is installed with first gear, and the first gear bottom engagement is connected with second gear, described It is rotatably assorted in the compacting drive mechanism inner wall on the right side of second gear and is connected with the second extended rotating shaft of left and right, institute Extending end on the left of the second rotating shaft is stated to stretch into first drive cavity and be connected with the second gear right-hand end secure fit, Extending end is stretched into the deep gouge on the right side of second rotating shaft and end is installed with the first cone pulley, below the top pressure cam The projection that bottom end is connected with the sliding intracavitary bottom wall secure fit of the lifting, institute are slidably connected with the driving groove State the compacting executing agency being provided with projection to be connected with the top pressure cam power.

Preferably technical scheme, the lift drive mechanism include left and right and are extended on positioned at the sliding chamber of the lifting Lifting driving chamber in the moving body inner wall on the upside of top, the lifting driving chamber bosom opening position are provided with up and down The 3rd extended rotating shaft, the 3rd rotating shaft bottom extending end are rotatably assorted company with the lifting driving chamber inner bottom wall Connect, extending end and the second motor power are connected at the top of the 3rd rotating shaft, and second outer surface of motor is embedded in described Lift in driving chamber inner roof wall and secure fit connects, the first master of setting symmetrical above and below is circumferentially installed with the 3rd rotating shaft Belt wheel and the second main pulley, up and down extended the is equipped with the lifting driving chamber at left and right sides of the 3rd rotating shaft One screw rod and the second screw rod, first screw rod and the second screw tip extending end in the lifting driving chamber with pushing up Wall is rotatably assorted connection, first screw rod and the second screw rod bottom extension through the lifting driving chamber with it is described The moving body inner wall and the connection that is rotatably assorted, first screw rod and the second screw rod bottom between the sliding chamber of lifting Extending end stretches into the sliding intracavitary of the lifting and the left and right sides inner roof wall screw thread with the compacting drive mechanism coordinates respectively Connection.

Preferably technical scheme, it is described to promote link gear to include being arranged on the shifting on the left of the sliding chamber of the lifting The second drive cavity and the moving body inner wall of the second drive cavity bottom part down is arranged in motor vehicles bodies inner wall Interior guide runner, the sliding chamber of lifting are connected with being rotatably assorted in the moving body inner wall before second drive cavity There is the 4th extended rotating shaft of left and right, the 4th rotating shaft left side extending end stretches into described heavy above first cone pulley In groove and end is installed with the second cone pulley to be connected with first cone pulley, the 4th rotating shaft right side extending end Stretch into second drive cavity and end is installed with the 3rd cone pulley, second drive cavity of the 3rd cone pulley bottom right side Inside it is connected with the 4th cone pulley, the 4th cone pulley bottom is fixed with the second screw rod for extending downwardly setting, and described second Match somebody with somebody through the moving body inner wall between second drive cavity and the guide runner and rotation screw rod bottom extension Close connection, the second screw rod bottom extending end is stretched into the guide runner and is rotatably assorted company with the guide runner inner bottom wall Connect, run through the insertion chute for being provided with outer face on the right side of the moving body, the insertion chute on the right side of the guide runner in inwall The extended connection sliding block in left and right is inside slidably connected with, extending end stretches into the guide runner on the left of the connection sliding block Interior and be connected with second screw flight, extending end stretches out the moving body right-hand end on the right side of the connection sliding block Outside face and end is installed with the ejector dozer of arc.

Preferably technical scheme, the compacting executing agency include being arranged in the projection leading the sliding chamber of shifting and Sliding connection be arranged on it is described lead move sliding intracavitary lead shifting slide plate, it is described lead to move at the top of slide plate be installed with through the projection Top end face and the pressing pushing block of sliding connection, the shifting slide plate bottom end face of leading are installed with the pushing for extending downwardly setting Bar, the push strut bottom, which extends through, sequentially passes through the projection and the moving body inner wall and the company of being slidably matched Connect, push strut bottom extending end is stretched into the recessed caulking groove and end is installed with compaction plate, and described lead moves sliding intracavitary The pushing rod outer surface, which is surround, is provided with top pressure spring.

The beneficial effects of the invention are as follows：The present invention is simple in construction, easy to operate, by tamping drive mechanism its right end face Bottom position sets deep gouge, drives and the extended first rotating shaft in left and right is slidably connected in groove, in first rotating shaft circumferentially Fixed top pressure cam, first rotating shaft left side extending end and the first motor power are connected, and the first outer surface of motor is embedded in drive In dynamic groove inner left wall and it is fixedly connected, rammer of the extension between driving groove and the first drive cavity on the right side of first rotating shaft Real drive mechanism inner wall and the connection that is rotatably assorted, first rotating shaft right side extending end stretches into the first drive cavity and end is fixed First gear, first gear bottom, which is engaged, connects second gear, is rotated in the compacting drive mechanism inner wall on the right side of second gear Be connected the second extended rotating shaft of left and right, on the left of the second rotating shaft extending end stretch into the first drive cavity and with the second tooth The connection of right-hand end secure fit is taken turns, the second rotating shaft right side extending end stretches into deep gouge and fixed first cone pulley in end, top pressure are convex Take turns the projection that sliding connection bottom end is connected with the sliding intracavitary bottom wall secure fit of lifting in the driving groove of lower section, projection The compacting executing agency for inside setting to be connected with top pressure cam power, it is automatic by lift drive mechanism driving so as to realize The driving work that control top pressure cam is connected or is disconnected with tamping the power of executing agency, while realize and automatically control The driving work that the power of first cone pulley and the second cone pulley is connected or is disconnected, improve compacting and push the work forward whole Body running efficiency, it is time saving and energy saving, it is moved easily, reduces the purchase cost of equipment.

Brief description of the drawings

For ease of explanation, the present invention is described in detail by following specific embodiment and accompanying drawing.

Fig. 1 is overall structure diagram outside a kind of tamping unit of energy foundation ditch backfill of the present invention；

Fig. 2 is overall structure diagram inside a kind of tamping unit of energy foundation ditch backfill of the present invention；

Fig. 3 be the present invention it is a kind of can the tamping unit of foundation ditch backfill banket control structure schematic diagram；

Fig. 4 is the ejector dozer top view of the present invention；

Fig. 5 is the right view in Fig. 1 of the present invention.

Embodiment

As Figure 1-Figure 5, the tamping unit of a kind of energy foundation ditch backfill of the invention, including moving body 8, the shifting Recessed caulking groove 84 is provided with the bottom end face of motor vehicles bodies 8, the sliding chamber of lifting is provided with the moving body 8 of the recessed upside of caulking groove 84 81, the lifting is slided and compacting drive mechanism 9 is slidably connected with chamber 81, the locomotive at the sliding top of chamber 81 of lifting The lift drive mechanism to be connected with compacting drive mechanism 9 power, the sliding chamber of lifting are provided with the inner wall of body 8 It is provided with the inner wall of the moving body 8 on 81 right sides and joins to the promotion being connected with compacting drive mechanism 9 power Motivation structure, compacting drive mechanism 9 bottom end face is interior to be provided with driving groove 91, the compacting on the right side of driving groove 91 The first drive cavity 93 is provided with the inner wall of drive mechanism 9, the bottom position of the compacting its right end face of drive mechanism 9, which is provided with, to sink Groove 94, described drive are slidably connected with the extended first rotating shaft 911 in left and right, the first rotating shaft 911 in groove 91 Upper circumference is installed with top pressure cam 912, and the left side extending end of first rotating shaft 911 and the power of the first motor 913 are connected, The outer surface of first motor 913 is in the driving inner left wall of groove 91 and is fixedly connected, and the first rotating shaft 911 is right Side extension is through the inner wall of compacting drive mechanism 9 driven between groove 91 and first drive cavity 93 and turns Dynamic to be connected, the right side extending end of first rotating shaft 911 stretches into first drive cavity 93 and end is installed with first Gear 931, the bottom of first gear 931 engagement are connected with second gear 932, the rammer on the right side of second gear 932 It is rotatably assorted in the real inner wall of drive mechanism 9 and is connected with the second extended rotating shaft 933 of left and right, second rotating shaft 933 is left Side extending end is stretched into first drive cavity 93 and is connected with the right-hand end secure fit of second gear 932, and described the The right side extending end of two rotating shaft 933 stretches into the deep gouge 94 and end is installed with the first cone pulley 941, the top pressure cam 912 Bottom end is slidably connected with the driving groove 91 of lower section with the sliding inner bottom wall secure fit of chamber 81 of the lifting to connect The projection 92 connect, the interior compacting executing agency for being provided with to be connected with the power of top pressure cam 912 of the projection 92.

Valuably, the lift drive mechanism is extended on the upside of the sliding top of chamber 81 of the lifting including left and right Lifting driving chamber 82 in the inner wall of moving body 8, the lifting driving chamber 82 bosom opening position are provided with extension up and down The 3rd rotating shaft 823 set, the bottom extending end of the 3rd rotating shaft 823 are rotatably assorted with the lifting inner bottom wall of driving chamber 82 Connection, the top extending end of the 3rd rotating shaft 823 and the power of the second motor 824 are connected, the appearance of the second motor 824 Face is in the lifting inner roof wall of driving chamber 82 and secure fit connects, and is circumferentially installed with the 3rd rotating shaft 823 up and down The symmetrically arranged main pulley 8231 of first main pulley 8232 and second, the lifting of the left and right sides of the 3rd rotating shaft 823 are driven It is equipped with extended up and down the first screw rod 821 and the second screw rod 822 in dynamic chamber 82, first screw rod 821 and described the The top extending end of two screw rod 822 is rotatably assorted with the lifting inner roof wall of driving chamber 82 and is connected, the He of the first screw rod 821 The movement of the bottom extension of second screw rod 822 between the lifting driving chamber 82 and the sliding chamber 81 of the lifting The inner wall of car body 8 and the connection that is rotatably assorted, first screw rod 821 and the bottom extending end of second screw rod 822 stretch into It is connected respectively in the sliding chamber 81 of lifting and with the left and right sides inner roof wall screw thread for tamping drive mechanism 9, so as to real Now top pressure cam 912 is automatically controlled by lift drive mechanism driving with tamping the power of executing agency and being connected or depart to connect The driving work connect, while realize that the power for automatically controlling the first cone pulley 941 and the second cone pulley 834 is connected or is disconnected Driving work, improve compacting and the whole work efficiency that pushes the work forward.

Valuably, it is described to promote link gear to include being arranged in the moving body 8 in the sliding left side of chamber 81 of the lifting The second drive cavity 83 and it is arranged in wall body in the inner wall of the moving body 8 of the bottom part down of the second drive cavity 83 Guide runner 85, the sliding chamber 81 of lifting in the inner wall of the moving body 8 before second drive cavity 83 with being rotatably assorted The 4th extended rotating shaft 833 of left and right is connected with, the left side extending end of the 4th rotating shaft 833 stretches into first cone pulley In the deep gouge 94 of 941 tops and end is installed with the second cone pulley 834 to be connected with first cone pulley 941, The right side extending end of 4th rotating shaft 833 stretches into second drive cavity 83 and end is installed with the 3rd cone pulley 831, described The 4th cone pulley 832, the 4th cone pulley 832 are connected with second drive cavity 83 of the bottom right side of 3rd cone pulley 831 Bottom is fixed with the second screw rod 851 for extending downwardly setting, and the bottom extension of the second screw rod 851 passes through described second The dynamic inner wall of the moving body 8 and the connection that is rotatably assorted between chamber 83 and the guide runner 85, the bottom of the second screw rod 851 Portion's extending end is stretched into the guide runner 85 and is rotatably assorted with the inner bottom wall of guide runner 85 and is connected, and the guide runner 85 is right Run through the insertion chute 86 provided with the right side outer face of moving body 8 in the inwall of side, be slidably matched in the insertion chute 86 The extended connection sliding block 852 in left and right is connected with, the left side extending end of connection sliding block 852 is stretched into the guide runner 85 And be connected with the screw thread of the second screw rod 851, the right side extending end of connection sliding block 852 stretches out the moving body 8 Outside its right end face and end is installed with the ejector dozer 853 of arc, and the lifting work for promoting link gear is automatically controlled so as to realize, The backfilling working bulldozed is realized, reduces equipment purchase cost, improves Ramming operation efficiency.

Valuably, the compacting executing agency includes being arranged on leading the sliding chamber 921 of shifting and sliding in the projection 92 and matched somebody with somebody Close connection and be arranged on described lead and move leading in sliding chamber 921 and move slide plate 922, described lead is moved the top of slide plate 922 and be installed with through described The top end face of projection 92 and the pressing pushing block 923 of sliding connection, the shifting bottom end face of slide plate 922 of leading are installed with to downward The push strut 924 of setting is stretched, the bottom of push strut 924, which extends through, sequentially passes through the projection 92 and the moving body 8 inner walls and sliding connection, the bottom extending end of push strut 924 stretches into the recessed caulking groove 84 and end is installed with Compaction plate 926, the outer surface of the push strut 924 moved in sliding chamber 921 of leading is around top pressure spring 925 is provided with, so as to realize Ramming operation is automatically controlled, reduces cost of labor, it is time saving and energy saving.

When needing Ramming operation, compacting drive mechanism 9 is driven to slide into the sliding chamber 81 of lifting by lift drive mechanism Lowest position, now, projection 92 is at utmost stretched into driving groove 91, and make the compacting executing agency in projection 92 It is slidably connected with the top pressure of top pressure cam 912, meanwhile, make the first cone pulley 941 in deep gouge 94 at utmost away from the second cone Wheel 834, now, first rotating shaft 911 is driven to rotate by the first motor 913, and then top pressure cam is driven by first rotating shaft 911 Protuberance on 912 is slidably matched with the pressing top pressure of pushing block 923, now, drives bottom to lead by pressing pushing block 923 and moves slide plate 922 Gradually the pressure on top surface of top pressure spring 925 is overcome gradually to drive push strut 924 and the bottom end compaction plate 926 of push strut 924 gradual Stretch out in recessed caulking groove 84 and realize Ramming operation, the top end face of pushing block 923 is pressed when the protuberance on top pressure cam 912 gradually slips away When, now, lead and move slide plate 922 gradually by the pressure on top surface of top pressure spring 925 drive push strut 924 and the bottom of push strut 924 end End compaction plate 926 is gradually stretched into recessed caulking groove 84, by controlling the first motor 913 continuously to rotate, and then realizes the company of automatically controlling Continuous control compaction plate 926 carries out Ramming operation；

When needing soil-shifting work, compacting drive mechanism 9 is driven to slide into the sliding chamber 81 of lifting most by lift drive mechanism Tip position, now, make top pressure cam 912 in driving groove 91 at utmost away from the compacting executing agency in projection 92, Meanwhile make the 834 at a fully engaged connection of the first cone pulley 941 and the second cone pulley in deep gouge 94, now, by controlling the first motor 913 drive the positive and negative rotations of first rotating shaft 911, and then drive the positive and negative rotation of first gear 931 by first rotating shaft 911, meanwhile, by the One gear 931 drive second gear 932 realize positive and negative rotation work, and then by second gear 932 drive the second rotating shaft 933 and The positive and negative rotation of the first cone pulley 941 of the right end of second rotating shaft 933, now, drive the second cone pulley 834 real by the first cone pulley 941 Existing positive and negative rotation, and then drive the 4th rotating shaft 833 to drive 831 turns of the 3rd cone pulley on the right side of the 4th rotating shaft 833 by the second cone pulley 834 It is dynamic, now, the positive and negative rotation of the 4th cone pulley 832 is driven by the 3rd cone pulley 831, and then there is the 4th cone pulley 832 to drive the second screw rod 851 Positive and negative rotation, now, by the second screw rod 851 drive connection sliding block 852 along insertion the above-below direction of chute 86 slide, and then realize by Connection sliding block 852 drives ejector dozer 853 to realize and slides up and down adjustment work.

The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any The change or replacement expected without creative work, it should all be included within the scope of the present invention.Therefore, it is of the invention Protection domain should be determined by the scope of protection defined in the claims.

Claims

1. a kind of tamping unit of energy foundation ditch backfill, including moving body, it is characterised in that：Set in moving body bottom end face There is a recessed caulking groove, the sliding chamber of lifting is provided with the moving body on the upside of recessed caulking groove, lift sliding intracavitary and be slidably connected with compacting driving Mechanism, lift to be provided with the moving body inner wall of sliding top of chamber and driven to the lifting being connected with compacting drive mechanism power Motivation structure, lift the promotion being provided with the moving body inner wall on the right side of sliding chamber to be connected with compacting drive mechanism power Link gear, compacting drive mechanism bottom end face is interior to be provided with driving groove, drives the compacting drive mechanism inner wall on the right side of groove The first drive cavity is inside provided with, the bottom position of compacting drive mechanism its right end face is provided with deep gouge, drives in groove and be slidably matched The extended first rotating shaft in left and right is connected with, top pressure cam is circumferentially installed with first rotating shaft, extension is last on the left of first rotating shaft End is connected with the first motor power, and the first outer surface of motor is in driving groove inner left wall and is fixedly connected, first Compacting drive mechanism inner wall and be rotatably assorted connection of the extension between driving groove and the first drive cavity on the right side of rotating shaft, Extending end is stretched into the first drive cavity on the right side of first rotating shaft and end is installed with first gear, the engagement connection of first gear bottom There is a second gear, be rotatably assorted in the compacting drive mechanism inner wall on the right side of second gear and be connected with left and right is extended second Rotating shaft, the second rotating shaft left side extending end are stretched into the first drive cavity and are connected with second gear right-hand end secure fit, second Extending end is stretched into deep gouge on the right side of rotating shaft and end is installed with the first cone pulley, is slided and is matched somebody with somebody in the driving groove below top pressure cam Close and be connected with the projection that bottom end is connected with the sliding intracavitary bottom wall secure fit of lifting, be provided with projection to be moved with top pressure cam The compacting executing agency of power cooperation connection.

A kind of 2. tamping unit of energy foundation ditch backfill according to claim 1, it is characterised in that：The elevator drive machine Structure includes lifting driving chamber in the moving body inner wall that left and right is extended on the upside of the sliding top of chamber of the lifting, The lifting driving chamber bosom opening position is provided with the 3rd extended up and down rotating shaft, the 3rd rotating shaft bottom extension end End is rotatably assorted with the lifting driving chamber inner bottom wall and is connected, and extending end is matched somebody with somebody with the second motor power at the top of the 3rd rotating shaft Connection is closed, second outer surface of motor is in the lifting driving chamber inner roof wall and secure fit connects, described 3rd turn Circumferentially it is installed with the first main pulley and the second main pulley of setting symmetrical above and below on axle, it is described at left and right sides of the 3rd rotating shaft Extended up and down the first screw rod and the second screw rod, first screw rod and second screw rod are equipped with lifting driving chamber Top extending end is rotatably assorted with the lifting driving chamber inner roof wall and is connected, first screw rod and the second screw rod bottom The moving body inner wall between chamber is slided through the lifting driving chamber and the lifting and be rotatably assorted in portion extension Connection, first screw rod and the second screw rod bottom extending end stretch into the sliding intracavitary of the lifting and respectively with the rammer The left and right sides inner roof wall screw thread of real drive mechanism is connected.

A kind of 3. tamping unit of energy foundation ditch backfill according to claim 1, it is characterised in that：The promotion gear Structure includes being arranged in the moving body inner wall on the left of the sliding chamber of lifting the second drive cavity and is arranged on described the Guide runner in the moving body inner wall of two drive cavity bottom part downs, the sliding chamber of lifting and second drive cavity it It is rotatably assorted in the preceding moving body inner wall and is connected with the 4th extended rotating shaft of left and right, on the left of the 4th rotating shaft In the deep gouge that extending end is stretched into above first cone pulley and end is installed with to be connected to coordinate with first cone pulley The second cone pulley connect, the 4th rotating shaft right side extending end stretches into second drive cavity and end is installed with third hand tap Take turns, the 4th cone pulley, the 4th cone pulley bottom are connected with second drive cavity of the 3rd cone pulley bottom right side Be fixed with the second screw rod for extending downwardly setting, the second screw rod bottom extension through second drive cavity with it is described The moving body inner wall and the connection that is rotatably assorted between guide runner, the second screw rod bottom extending end stretch into described It is rotatably assorted in guide runner and with the guide runner inner bottom wall and is connected, runs through being provided with the movement on the right side of the guide runner in inwall The insertion chute of outer face on the right side of car body, described penetrate in chute are slidably connected with the extended connection sliding block in left and right, Extending end is stretched into the guide runner and is connected with second screw flight on the left of the connection sliding block, the connection Extending end is stretched out outside the moving body its right end face on the right side of sliding block and end is installed with the ejector dozer of arc.

A kind of 4. tamping unit of energy foundation ditch backfill according to claim 1, it is characterised in that：The compacting execution machine Including being arranged on, leading in the projection moves sliding chamber to structure and sliding connection is arranged on the shifting of leading for leading the sliding intracavitary of shifting and slided Plate, described lead is installed with the top of shifting slide plate through projection top end face and the pressing pushing block being slidably connected, described to lead Move slide plate bottom end face and be installed with the push strut for extending downwardly setting, the push strut bottom extend through sequentially pass through it is described convex Block and the moving body inner wall and sliding connection, push strut bottom extending end are stretched into the recessed caulking groove And end is installed with compaction plate, the pushing rod outer surface for leading the sliding intracavitary of shifting, which is surround, is provided with top pressure spring.