CN108031605A

CN108031605A - A kind of letter box arrangement

Info

Publication number: CN108031605A
Application number: CN201711346729.4A
Authority: CN
Inventors: 杨仙
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-15
Filing date: 2017-12-15
Publication date: 2018-05-15

Abstract

The invention discloses a kind of letter box arrangement, including rolling chassis, rise and fall parts and the footstock body that is fixedly mounted at the top of the parts that rise and fall being fixedly mounted at the top of the rolling chassis, holding tank is equipped with the footstock body top end surface, left and right is equipped with the footstock body of the holding tank bottom part down in wall body and expands the roll adjustment chamber set, the sliding groove of first for expanding set downwards and the second sliding groove are respectively equipped with the footstock body top end surface at left and right sides of the holding tank, described first sliding groove and the second sliding trench bottom are expanded end and are set respectively with expanding the top unicom of end at left and right sides of the roll adjustment chamber, first for expanding set downwards is equipped with wall body connect groove in the described first sliding footstock body between groove and the holding tank；The configuration of the present invention is simple, it is easy to operate, improve and brushing effects and brushing quality are applied to mailbox.

Description

A kind of letter box arrangement

Technical field

The present invention relates to mailbox technical field, is specifically a kind of letter box arrangement.

Background technology

Storage carrier of the mailbox as mail, is usually fitted with mailbox babinet, in order to increase letter under cell, office building The service life and corrosion resistance of case, usually carry out mopping in the outer surface of mailbox babinet, general at present manually right Mailbox mopping works, its work efficiency is low, in addition, the existing apparatus structure complexity painted automatically mailbox, it is low to paint efficiency.

The content of the invention

The technical problems to be solved by the invention are to provide a kind of letter box arrangement, it can solve above-mentioned show in the art Problem.

The present invention is achieved through the following technical solutions：A kind of letter box arrangement of the present invention, including chassis is rolled, Gu Rise and fall parts and the footstock body that is fixedly mounted on the rise and fall parts at the top of of the Dingan County at the top of the rolling chassis, it is special Sign is：Holding tank is equipped with the footstock body top end surface, in the footstock body of the holding tank bottom part down in wall body The roll adjustment chamber set is expanded equipped with left and right, is respectively equipped with the footstock body top end surface at left and right sides of the holding tank downwards Expand the sliding groove of first set and the second sliding groove, the described first sliding groove and the second sliding trench bottom expand end respectively with The top unicom that end is expanded at left and right sides of the roll adjustment chamber is set, and described first is sliding described between groove and the holding tank Groove is connected equipped with expansion downwards is set first in wall body in footstock body, described first connects groove left-hand end slips with described first Groove right-hand end unicom is set, and is equipped with the first sky in the described second sliding footstock body between groove and the holding tank in wall body Groove, left and right is equipped with the holding tank and expands the first Coupling Shaft set, expanded on the left of first Coupling Shaft end with it is described Holding tank inner left wall is rotatably assorted connection, and it is empty with described first through the holding tank that section is expanded on the right side of first Coupling Shaft Wall body and the connection that is rotatably assorted in the footstock body between groove, the first Coupling Shaft right side are expanded first described in the jacking of end In empty slot and first bevel gear is fixed with, first is slidably connected with respectively in the described first sliding groove and the second sliding groove End is expanded at the top of sliding-contacted rod and the second sliding-contacted rod, first sliding-contacted rod and second sliding-contacted rod and stabs out the footstock body Outside top end surface, first sliding-contacted rod and the second sliding-contacted rod opposite side equity outside the footstock body top end surface are stabbed out Equipped with adaptor, spring groove is provided with two adaptor end face outsides, is installed with the spring groove madial wall Part is suppressed, the part outboard end that suppresses is fixedly connected with first sliding-contacted rod and the second sliding-contacted rod inner side end respectively, Hairbrush is smeared in the connection that is rotatably assorted between two adaptors, and described first connects interior be equipped with of groove consolidates with first sliding-contacted rod Surely the pushing block being connected, the pushing block bottom end are equipped with bevel edge pressing portion, and the roll adjustment intracavitary is equipped with scaling component, institute State the first sliding-contacted rod and the second sliding-contacted rod bottom is expanded roll adjustment chamber described in the jacking of end and matched somebody with somebody with the scaling component power Close and connect, be equipped with the footstock body between the holding tank and the roll adjustment chamber in wall body to be slided with the pushing block The transfer component for coordinating and being connected with first bevel gear power.

Preferably technical solution, the scaling component include left and right expansion and are slidably matched to be arranged on the roll adjustment chamber Interior connection sliding-contacted rod and threaded connection are arranged in the connection sliding-contacted rod and expand the bar that is spirally connected set, institute up and down State the bar bottom that is spirally connected and expand end and be rotatably assorted and be connected with the roll adjustment intracavitary bottom wall, expansion end and the at the top of the bar that is spirally connected One electricity favourable turn power is connected, and the first electricity favourable turn outer surface is installed in the roll adjustment intracavitary roof and secure fit connects Connect, top end surface the first sliding-contacted rod described with the left and right sides and described second respectively of end is expanded on the left of the connection sliding-contacted rod The connection of end secure fit is expanded in sliding-contacted rod bottom.

Preferably technical solution, the transfer component connect groove and setting including expanding the second of setting to the left The second empty slot on the right side of groove is connected described second, the second empty slot top end is in opposite with the first empty slot bottom end State, described second connects groove left side expansion end connects the setting of groove unicom with described first, and described second connects slip in groove Pushing sliding-contacted rod is connected with, the pushing sliding-contacted rod left distal end is installed with the first bevel edge connected in groove described in jacking and pushes away Pressure head, described push are installed with the second electricity favourable turn in sliding-contacted rod its right end face, the second electricity favourable turn right-hand end power connector has The spline roller outside the pushing sliding-contacted rod its right end face is stabbed out, described second connects the top between groove and second empty slot It is rotatably assorted in base vivo wall body and is connected with the second Coupling Shaft, is equipped with the second Coupling Shaft left end face and is led with described second The spline groove that access slot unicom is set, the spline groove are oppositely arranged with the spline roller, end on the right side of second Coupling Shaft End is installed with the second bevel gear described in jacking in the second empty slot, the top between first empty slot and second empty slot It is rotatably assorted in base vivo wall body and is connected with the 3rd Coupling Shaft, the 3rd Coupling Shaft top end is installed with first described in jacking The third hand tap gear being connected in empty slot and with the first bevel gear, the 3rd Coupling Shaft bottom end are installed with jacking The 4th bevel gear being connected in second empty slot and with the second bevel gear, described second to connect groove inner bottom wall inline Logical be equipped with connects chamber, it is described connect intracavitary and be slidably connected with top end match somebody with somebody with the pushing sliding-contacted rod bottom end face fixation That closes connection connects block, it is described connect on the left of block described connect intracavitary and be equipped with drawing article, the drawing article left distal end and institute State and connect the connection of chamber inner left wall secure fit, the drawing article right end connects block left end face secure fit company with described Connect.

Preferably technical solution, is circumferentially installed with sizing on the first Coupling Shaft outer surface in the holding tank Cylinder.

The beneficial effects of the invention are as follows：The configuration of the present invention is simple, it is easy to operate, pass through the first sliding groove and the second sliding groove The first sliding-contacted rod and the second sliding-contacted rod are inside slidably connected respectively, and it is equal to expand end at the top of the first sliding-contacted rod and the second sliding-contacted rod Stab out outside footstock body top end surface, stab out the first sliding-contacted rod outside footstock body top end surface and the second sliding-contacted rod opposite side equity is set Hairbrush is smeared in adaptor, the connection that is rotatably assorted between two adaptors, and first connects and set in groove and the first sliding-contacted rod secure fit The pushing block of connection, pushing block bottom end set bevel edge pressing portion, and roll adjustment intracavitary sets scaling component, and the first sliding-contacted rod and second are slipped Bar bottom expands end jacking roll adjustment chamber and is connected with scaling component power, in the footstock body between holding tank and roll adjustment chamber The transfer component to be slidably matched with pushing block and be connected with first bevel gear power is set in wall body, so as to fulfill certainly The oscilaltion mobile working of hairbrush is smeared in dynamic control, meanwhile, realize that smearing hairbrush is abutted against with sizing cylinder and carry out dip work, And realize that sizing cylinder works with smearing the automatic uniform dip of hairbrush by the driving work of the second electricity favourable turn, prevent from dipping in full paint Hairbrush is smeared there is a situation where dripping, paint is not only saved but also reduces the labor intensity of worker, improve and brushing effects are applied to mailbox And brushing quality.

Brief description of the drawings

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

Fig. 1 is overall structure diagram outside a kind of letter box arrangement of the present invention；

Fig. 2 is the footstock body internal structure schematic diagram of the present invention；

Fig. 3 is the partial enlargement structural representation in Fig. 2 of the present invention.

Embodiment

As shown in Figure 1-Figure 3, a kind of letter box arrangement of the invention, including chassis 7 is rolled, it is fixedly mounted on the rolling bottom Rising and falling for the top of frame 7 and is fixedly mounted on the footstock body 9 at the top of parts 8 of rising and falling at parts 8, it is characterised in that：The top Holding tank 91 is equipped with 9 top end surface of pedestal, left and right is equipped with 9 inner wall of footstock body of 91 bottom part down of holding tank The roll adjustment chamber 94 set is expanded, is respectively equipped with 9 top end surface of footstock body of the left and right sides of holding tank 91 and opens up downwards The first sliding groove 92 and second that exhibition is set slips groove 93, and the described first sliding groove 92 and second, which slips 93 bottom of groove, expands end The top unicom for expanding end with the left and right sides of roll adjustment chamber 94 respectively is set, the described first sliding groove 92 and the holding tank First for expanding set downwards is equipped with 9 inner wall of footstock body between 91 and connects groove 97, described first to connect groove 97 left Side is set with the described first 92 right-hand end unicom of sliding groove, and described second is sliding described between groove 93 and the holding tank 91 The first empty slot 95 is equipped with 9 inner wall of footstock body, being equipped with left and right in the holding tank 91 expands the first Coupling Shaft 910 set, The left side of the first Coupling Shaft 910 expansion end is rotatably assorted with 91 inner left wall of holding tank to be connected, first switching Section is expanded through 9 inner wall of footstock body between the holding tank 91 and first empty slot 95 and rotation in the right side of axis 910 It is connected, the right side of first Coupling Shaft 910 is expanded described in the jacking of end in the first empty slot 95 and is fixed with the first cone tooth Wheel 951, the described first sliding groove 92 and second slips is slidably connected with the first sliding-contacted rod 921 and the second cunning respectively in groove 93 Extension bar 931, first sliding-contacted rod 921 and the top of second sliding-contacted rod 931 expand end and stab out the top of footstock body 9 Outside end face, first sliding-contacted rod 921 outside 9 top end surface of footstock body and 931 opposite side of the second sliding-contacted rod are stabbed out Equity is equipped with adaptor 932, and spring groove 9321, the spring groove 9321 are provided with two 932 end face outsides of adaptor Be installed with madial wall and suppress part 9322, it is described suppress 9322 outboard end of part respectively with first sliding-contacted rod 921 and institute 931 inner side end of the second sliding-contacted rod to be stated to be fixedly connected, hairbrush 933 is smeared in the connection that is rotatably assorted between two adaptors 932, Described first connects the pushing block 971 for being equipped with groove 97 and being connected with 921 secure fit of the first sliding-contacted rod, the pushing block 971 bottom ends are equipped with bevel edge pressing portion 9710, and scaling component, first sliding-contacted rod 921 and institute are equipped with the roll adjustment chamber 94 931 bottom of the second sliding-contacted rod is stated to expand roll adjustment chamber 94 described in the jacking of end and be connected with the scaling component power, it is described It is equipped with 9 inner wall of footstock body between holding tank 91 and the roll adjustment chamber 94 and matches somebody with somebody to be slided with the pushing block 971 The transfer component for closing and being connected with 951 power of first bevel gear.

Valuably, the scaling component includes left and right expansion and the connection being arranged in the roll adjustment chamber 94 that is slidably matched is slided Extension bar 941 and threaded connection are arranged in the connection sliding-contacted rod 941 and expand the bar 942 that is spirally connected set, institute up and down State 942 bottom of bar that is spirally connected and expand end and be rotatably assorted and be connected with 94 inner bottom wall of roll adjustment chamber, expansion at the top of the bar 942 that is spirally connected End is connected with the first electricity 943 power of favourable turn, and 943 outer surfaces of the first electricity favourable turn, which are installed in the roll adjustment chamber 94, pushes up In wall and secure fit connects, 941 left side of connection sliding-contacted rod expand the top end surface of end respectively with described in the left and right sides First sliding-contacted rod 921 is expanded end secure fit with 931 bottom of the second sliding-contacted rod and is connected.

Valuably, the transfer component, which includes expanding the second of setting to the left, connects groove 98 and is arranged on described second Second empty slot 99 on the right side of groove 98 is connected, 99 top end of the second empty slot is in opposite shape with 95 bottom end of the first empty slot State, described second connects the left side of groove 98 expansion end connects the setting of 97 unicom of groove with described first, and described second connects in groove 98 It is slidably connected with and pushes sliding-contacted rod 981, pushing 981 left distal end of sliding-contacted rod is installed with described in jacking first and connects groove Bevel edge push head 9811 in 97, described push are installed with the second electricity favourable turn 9812 in 981 its right end face of sliding-contacted rod, and described second Electricity 9812 right-hand end power connectors of favourable turn have a spline roller 9813 stabbed out outside pushing 981 its right end face of sliding-contacted rod, and described the Two connect to be rotatably assorted in 9 inner wall of footstock body between groove 98 and second empty slot 99 and are connected with the second Coupling Shaft 993,993 left end face of the second Coupling Shaft is interior to be equipped with the spline groove 9931 for connecting 98 unicom of groove with described second and setting, The spline groove 9931 is oppositely arranged with the spline roller 9813, and 993 right end of the second Coupling Shaft is installed with jacking Second bevel gear 992 in second empty slot 99, the footstock between first empty slot 95 and second empty slot 99 It is rotatably assorted in 9 inner wall of body and is connected with the 3rd Coupling Shaft 953,953 top end of the 3rd Coupling Shaft is installed with jacking institute State the third hand tap gear 952 being connected in the first empty slot 95 and with the first bevel gear 951, the 3rd Coupling Shaft 953 Bottom end is installed with described in jacking the 4th bevel gear being connected in the second empty slot 99 and with the second bevel gear 992 991, described second connects unicom in 98 inner bottom wall of groove is slidably connected with top equipped with chamber 96, described connect is connected in chamber 96 What end was connected with the pushing 981 bottom end face secure fit of sliding-contacted rod connects block 961, the institute for connecting the left side of block 961 State to connect and drawing article 962 is equipped with chamber 96,962 left distal end of drawing article connects 96 inner left wall secure fit of chamber with described Connection, 962 right end of drawing article are connected with the 961 left end face secure fit of block that connects.

Valuably, circumferentially it is installed with sizing cylinder 911 on 910 outer surface of the first Coupling Shaft in the holding tank 91.

During original state, connection sliding-contacted rod 941 is located at the top position in roll adjustment chamber 94, meanwhile, by connection sliding-contacted rod 941, which drive the top of the first sliding-contacted rod 921 of the left and right sides and the second sliding-contacted rod 931 to expand section, at utmost stabs out footstock body 9 Outside top end surface, at this time, gone out by stamp between the first sliding-contacted rod 921 outside the top end surface of footstock body 9 and the second sliding-contacted rod 931 Adaptor 932, which drives, smears hairbrush 933 at utmost away from holding tank 91, meanwhile, pushing block is driven by the first sliding-contacted rod 921 971, which slide into first, connects top position in groove 97, at this time, connects block 961 and is subject to 962 drawing force of drawing article, make to connect Block 961 drives the bevel edge push head 9811 pushed in 981 left distal end of sliding-contacted rod to be slid completely into first and connects in groove 97, and makes tiltedly Push head 9811 left end face in side is slidably matched with 921 its right end face top pressure of the first sliding-contacted rod, meanwhile, pushing block 971 is positioned at oblique The first of the upside of side push head 9811 is connected in groove 97, at this time, pushing sliding-contacted rod 981 is driven the spline roller in its right end face 9813 at utmost away from spline groove 9931.

When needing automatic dip and to the mopping of mailbox outer surface, 942 turns of the bar that is spirally connected is controlled by the first electricity favourable turn 943 It is dynamic, drive connection sliding-contacted rod 941 gradually to be slided along the bottom direction in roll adjustment chamber 94 by the bar 942 that is spirally connected, it is at this time, sliding by connecting Bar 941 drives the first sliding-contacted rod 921 of the left and right sides and the second sliding-contacted rod 931 gradually to be slided respectively along the first sliding groove 92 and second Bottom direction in access slot 93 is slided, and makes the first sliding-contacted rod 921 and the gradual jacking roll adjustment chamber 94 of 931 bottom stage of the second sliding-contacted rod It is interior, meanwhile, the bevel edge pressing portion 9710 of 971 bottom of pushing block 971 and pushing block is driven gradually along by the first sliding-contacted rod 921 One bottom direction connected in groove 97 is slided, the company until bevel edge pressing portion 9710 and 9811 top pressure of bevel edge push head are slidably matched Connect, at this time, driven by bevel edge push head 9811 push sliding-contacted rod 981 and push sliding-contacted rod 981 bottom to connect block 961 gradual Overcome the drawing force of drawing article 962 and gradually connect right direction in groove 98 along second and slide, meanwhile, make the second electricity favourable turn In the gradual jacking spline groove 9931 of spline roller 9813 of 9812 right-hand ends, until pushing 981 its right end face of sliding-contacted rod and second When connecting 98 right side inner wall of groove and offseting, at this time, make in the complete jacking spline groove 9931 of spline roller 9813, meanwhile, slided by pushing The drive of extension bar 981 connects block 961 and slides into the right-most position connected in chamber 96, at this time, bevel edge push head 9811 is pushed up completely Connected into second in groove 98 and 9811 left distal end of bevel edge push head and 971 its right end face top pressure of pushing block is slidably matched company Connect, at this time, continue to control the first sliding-contacted rod 921 of the connection drive of sliding-contacted rod 941 left and right sides and the second sliding-contacted rod 931 to downslide It is dynamic, until connection sliding-contacted rod 941 slides into the lowest position in roll adjustment chamber 94, at this time, gone out by stamp outside 9 top end surface of footstock body The first sliding-contacted rod 921 and the second sliding-contacted rod 931 drive and smear hairbrush 933 bottom stage at utmost in jacking holding tank 91, and 933 bottom end of smearing hairbrush is pressed against each other mating connection with 911 top end of sizing cylinder, at this time, pass through the second electricity 9812 bands of favourable turn Dynamic spline roller 9813 rotates, and the second of 993 right end of the second Coupling Shaft 993 and the second Coupling Shaft is driven by spline roller 9813 Bevel gear 992 rotates, and then drives the 3rd of the 4th bevel gear 991 and the top of the 4th bevel gear 991 the by second bevel gear 992 Coupling Shaft 953 rotates, meanwhile, drive third hand tap gear 952 to rotate by the 3rd Coupling Shaft 953, and then by 952 band of third hand tap gear Sizing cylinder 911 in dynamic first bevel gear 951 and first bevel gear 951 rotates, and drives smearing hairbrush by sizing cylinder 911 933 realize relative rotation, and then complete automatic dip work.

The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any The change or replacement expected without creative work, should be covered by the protection 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 letter box arrangement, including chassis is rolled, rise and fall parts and the fixation being fixedly mounted at the top of the rolling chassis Footstock body at the top of the parts that rise and fall, it is characterised in that：Holding tank is equipped with the footstock body top end surface, it is described The roll adjustment chamber set, the holding tank left and right sides are expanded in the interior left and right that is equipped with of wall body in the footstock body of holding tank bottom part down The footstock body top end surface in be respectively equipped with the sliding groove of first for expanding set downwards and the second sliding groove, described first slides Access slot and the second sliding trench bottom are expanded end and are set respectively with expanding the top unicom of end at left and right sides of the roll adjustment chamber, institute State in the first sliding footstock body between groove and the holding tank and connect groove equipped with expansion downwards is set first in wall body, Described first connects groove left-hand end is set with the described first sliding groove right-hand end unicom, the described second sliding groove and the holding tank Between the footstock body in be equipped with the first empty slot in wall body, left and right be equipped with the holding tank expand first set and transfer Axis, the first Coupling Shaft left side expansion end is rotatably assorted with the holding tank inner left wall to be connected, first Coupling Shaft Section wall body and connection that is rotatably assorted in the footstock body between the holding tank and first empty slot, institute are expanded in right side State and first bevel gear, the described first sliding groove are expanded described in the jacking of end in the first empty slot and be fixed with the right side of the first Coupling Shaft Be slidably connected with the first sliding-contacted rod and the second sliding-contacted rod in the second sliding groove respectively, first sliding-contacted rod and described the End is expanded at the top of two sliding-contacted rods to stab out outside the footstock body top end surface, is stabbed out described outside the footstock body top end surface First sliding-contacted rod and the second sliding-contacted rod opposite side equity are equipped with adaptor, are provided with two adaptor end face outsides Spring groove, is installed with the spring groove madial wall and suppresses part, and described to suppress part outboard end sliding with described first respectively Bar is fixedly connected with the second sliding-contacted rod inner side end, and hairbrush, institute are smeared in the connection that is rotatably assorted between two adaptors State first and connect the pushing block for being equipped with groove and being connected with the first sliding-contacted rod secure fit, the pushing block bottom end is equipped with oblique Side pressing portion, the roll adjustment intracavitary are equipped with scaling component, and end is expanded in first sliding-contacted rod and the second sliding-contacted rod bottom Roll adjustment chamber described in jacking and it is connected with the scaling component power, the top between the holding tank and the roll adjustment chamber The transfer group to be slidably matched with the pushing block and be connected with first bevel gear power is equipped with base vivo wall body Part.

A kind of 2. letter box arrangement according to claim 1, it is characterised in that：The scaling component includes left and right and expands and slide Dynamic connection sliding-contacted rod and the threaded connection being equipped with the roll adjustment intracavitary be arranged in the connection sliding-contacted rod and The bar that is spirally connected set is expanded up and down, and the bar bottom expansion end that is spirally connected is rotatably assorted with the roll adjustment intracavitary bottom wall to be connected, institute State expansion end at the top of the bar that is spirally connected to be connected with the first electricity favourable turn power, the described first electric favourable turn outer surface is installed on the tune Away from intracavitary roof and secure fit connect, it is described connection sliding-contacted rod on the left of expand end top end surface respectively with the left and right sides First sliding-contacted rod is expanded end secure fit with the second sliding-contacted rod bottom and is connected.

A kind of 3. letter box arrangement according to claim 1, it is characterised in that：The transfer component, which includes expanding to the left, to be set Second put, which connects groove and be arranged on described second, connects the second empty slot on the right side of groove, the second empty slot top end with it is described First empty slot bottom end is in relative status, and described second connects to expand end on the left of groove and connect groove unicom with described first and set Put, described second connects pushing sliding-contacted rod is slidably connected with groove, and the pushing sliding-contacted rod left distal end is installed with jacking Described first connects the bevel edge push head in groove, is installed with the second electricity favourable turn in the pushing sliding-contacted rod its right end face, and described the Two electricity favourable turn right-hand end power connectors have stabs out it is described pushing sliding-contacted rod its right end face outside spline roller, described second connect groove with It is rotatably assorted in the footstock body between second empty slot in wall body and is connected with the second Coupling Shaft, second Coupling Shaft is left The spline groove for connecting groove unicom with described second and setting is equipped with side end face, the spline groove is opposite with the spline roller to be set Put, the second Coupling Shaft right end is installed with the second bevel gear described in jacking in the second empty slot, first empty slot with It is rotatably assorted in the footstock body between second empty slot in wall body and is connected with the 3rd Coupling Shaft, the 3rd Coupling Shaft top The third hand tap gear that portion end is installed with the first empty slot described in jacking and is connected with the first bevel gear, the described 3rd The 4th bevel gear that Coupling Shaft bottom end is installed with the second empty slot described in jacking and is connected with the second bevel gear, Described second, which connects in groove inner bottom wall unicom, is equipped with and connects chamber, it is described connect intracavitary be slidably connected with top end with it is described The block that connects of sliding-contacted rod bottom end face secure fit connection is pushed, the intracavitary that connects connected on the left of block is equipped with pulling Part, the drawing article left distal end are connected with the chamber inner left wall secure fit that connects, the drawing article right end and institute State and connect the connection of block left end face secure fit.

A kind of 4. letter box arrangement according to claim 1, it is characterised in that：First Coupling Shaft in the holding tank Sizing cylinder is circumferentially installed with outer surface.