CN106089843B - A kind of hand hydraulic-pneumatic control device with interlock function - Google Patents

A kind of hand hydraulic-pneumatic control device with interlock function Download PDF

Info

Publication number
CN106089843B
CN106089843B CN201610598466.5A CN201610598466A CN106089843B CN 106089843 B CN106089843 B CN 106089843B CN 201610598466 A CN201610598466 A CN 201610598466A CN 106089843 B CN106089843 B CN 106089843B
Authority
CN
China
Prior art keywords
screw
piston rod
pneumatic control
swivel nut
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201610598466.5A
Other languages
Chinese (zh)
Other versions
CN106089843A (en
Inventor
汪琦
龚亚军
曾保平
马志刚
姜勇
贺学明
吴鸣
张宇
邓立
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
719th Research Institute of CSIC
Original Assignee
719th Research Institute of CSIC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 719th Research Institute of CSIC filed Critical 719th Research Institute of CSIC
Priority to CN201610598466.5A priority Critical patent/CN106089843B/en
Publication of CN106089843A publication Critical patent/CN106089843A/en
Application granted granted Critical
Publication of CN106089843B publication Critical patent/CN106089843B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1428Cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1457Piston rods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2215/00Fluid-actuated devices for displacing a member from one position to another
    • F15B2215/30Constructional details thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Actuator (AREA)

Abstract

The present invention provides a kind of hand hydraulic-pneumatic control device with interlock function, including hand screw, piston rod, slide swivel nut, little gear, linkage screw, described hand screw one end passes through connection housing and fixation, the other end is processed into square pole insertion piston rod, it is engaged with the square inner bore for sliding swivel nut, swivel nut is slided to be socketed on square pole, the piston rod inner is screwed hole, it is engaged with sliding external screw thread on swivel nut, the end of piston rod is connected with linked block, the linkage screw is horizontally set on the side of connection housing, connected between linkage screw one end and little gear with key, the centre of linkage screw is thread segment, linked block is then passed through after being socketed air valve block by screw thread on thread segment, the little gear is meshed with the gear on the handwheel of pneumatic control valve.Apparatus of the present invention integrate manually, surge, pneumatic control, realize the interlock function of hand hydraulic control system and pneumatic control, with compact conformation, installation dimension it is small, interlock reliable and secure the features such as.

Description

A kind of hand hydraulic-pneumatic control device with interlock function
Technical field
The invention belongs to manually, surge, pneumatic control field, and in particular to a kind of hand hydraulic-pneumatic control with interlock function Device.
Background technology
It is current it is manual, surge, air control unit it is big multi-functional single, a kind of control mode can only be realized, needed Multiple control modes coordinate together must just use multiple devices when control device, coordinate control difficulty big and there is safety Hidden danger.
The content of the invention
The purpose of the present invention is exactly in order to overcome above-mentioned weak point of the prior art, and the one kind provided has interlocking The hand hydraulic-pneumatic control device of function, the device integrate manually, surge, pneumatic control, realize hand hydraulic control system and pneumatic control Interlock function, with compact conformation, installation dimension it is small, interlock reliable and secure the features such as.
The present invention is that the technical scheme for solving the use of its technical problem is:A kind of hand hydraulic-pneumatic control dress with interlock function Put, including hand screw, connection housing, linked block, scale frame, oil cylinder seat, piston rod, end cap, gland, back-up ring, slide swivel nut, Little gear, linkage screw, air valve block, pneumatic control valve.
Described hand screw one end is inserted in piston rod through connection housing and fixation, the other end, is processed into square pole work For guide rail, it is engaged with the square inner bore for sliding swivel nut, slides swivel nut and be socketed on square pole, guide rail can be enclosed on by sliding swivel nut Moved in section.The hand screw slides swivel nut rearward end and installs back-up ring loading onto, and the active strokes of limit slippage swivel nut are prevented It departs from hand screw.
The piston of the piston rod be located at piston rod in the middle part of, the piston rod inner be it is hollow and process internal thread with The slip swivel nut external screw thread is engaged, and end and the linked block of piston rod are connected through a screw thread, and linked block passes through with scale frame Mode connects for screw, drives scale frame movement, the position of piston rod is indicated by scale frame when the piston rod movement.Meanwhile, Due to the limitation of linked block and scale frame, piston rod, which can only be moved axially, to be stretched out or retracts, and can not follow slip swivel nut one Rise and rotate.
The linkage screw is arranged on the side of connection housing, is connected between linkage screw one end and little gear with key, small Gear both sides are respectively equipped with the copper sheathing and locking nut for preventing that it from moving, and the centre of linkage screw is to lead on thread segment, thread segment Be then passed through linked block after crossing screw thread socket air valve block, in the chute on air valve block insertion connection housing, the little gear with Gear on the handwheel of pneumatic control valve is meshed.The external screw thread of the linkage screw is engaged with air valve block internal thread.
In the above-mentioned technical solutions, the oil cylinder seat is provided with into, oil return opening, and oil cylinder seat, end cap and gland constitute an envelope The oil cylinder housing closed, piston rod is moved in closing cylinder shell body, and its stroke is removable on hand screw with sliding swivel nut Stroke is identical.
In the above-mentioned technical solutions, two holes are provided with the linked block in the horizontal direction, one is screwed hole, it is and described Piston rod end external screw thread coordinates;One is through hole, and aperture is more than the external diameter of the thread segment of the linkage screw.
In the above-mentioned technical solutions, the pneumatic control valve includes handwheel, screw rod, valve support, elevating lever, valve element, copper valve Body and valve support, screw rod one end are fixed after passing through handwheel with nut, and the screw rod other end is risen by being threaded into the middle of elevating lever The other end of drop bar processes T-slot fixed spool, and there is the nipple for accessing gas circuit at the two ends of copper valve body.Pass through rotation Change hands wheel and drive elevating lever and valve core movement, control the closing and unlatching of pneumatic circuit.The gear of handwheel is with being arranged on connection simultaneously Pinion fits on dynamic screw rod, drive linkage screw to rotate.Original state lower air valve block is contacted with linked block, mutually limit System, only another part could be moved after a part removes a segment distance so that realize manually, surge with it is pneumatic mutual Lock and sequential control.
In the above-mentioned technical solutions, locating rod, the positioning are provided with by locating rod support in the bottom of connection housing Bar one end processes arc groove, in fork-shaped, and the locating rod other end is equipped with fixed back-up ring, between fixed back-up ring and locating rod support Provided with compression spring, piston rod is provided with the locating slot matched with locating rod.Can be by when locating rod is caught in locating slot Whole device is pinned, and hand screw and piston rod can not be moved.
In the above-mentioned technical solutions, in the state of piston rod is fully retracted pneumatic control valve core closing simultaneously, and Piston rod it is fully extended while pneumatic control valve core fully opens in the state of, air valve block and linked block are just contacted.
The present invention by the screw thread between part, gear etc. coordinate, realize manually, surge, the conversion of pneumatic control mode And interlock function.Hand screw, the cooperation of swivel nut and piston rod three is slided by the piston rod that is converted to of hand screw Axial movement drives slip swivel nut to be moved on hand screw when piston rod is moved axially, it is ensured that piston rod is normally transported It is dynamic, so as to realize the manual, conversion for control mode of surging.The keying of pneumatic control valve can be controlled by rotating handwheel, while handwheel Gear and the pinion fits in the linkage screw, drive linkage screw to rotate.Original state lower air valve block and company Motion block is contacted, mutually limitation, and only another part could be moved after a part removes a segment distance, so as to realize hand Move, surge and pneumatic interlocking and sequential control.The sequence of movement of the present apparatus is that " piston rod stretches out in place-pneumatic valve core and opened Open the retraction of-pneumatic valve core closing-piston rod ".
The beneficial effects of the invention are as follows by the cooperation between simple machine components, realization is manual, surge and pneumatic control Interlock function and sequential control between system.The present apparatus is simple and compact for structure, function is more, integrate multiple control modes, Realize safe and reliable interlock function between control mode, and control mode sequentially-operating.
Brief description of the drawings
Fig. 1 is the positive sectional view of the embodiment of the present invention(The fully extended state of piston rod).
Fig. 2 is the top view of the embodiment of the present invention(The fully extended state of piston rod).
Fig. 3 is the sectional view of pneumatic control valve portion in the embodiment of the present invention(Valve element opening).
In figure:1 hand screw, 2 connection housings, 3 linked blocks, 4 scale frames, 5 oil cylinder seats, 6 piston rods, 7 ends Lid, 8 glands, 9 back-up rings, 10 slide swivel nut, 11 locating rods, 12 little gears, 13 linkage screws, 14 air valve blocks, 15 hands Wheel, 16 screw rods, the support of 17 valves, 18 elevating levers, 19 valve elements, 20 bronze medal valve bodies, 21 valve supports, 22 locating rod supports, 23 consolidate Determine back-up ring.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
As shown in figure 1, the embodiment of the present invention provides the hand hydraulic-pneumatic control device with interlock function, main part can be real Now piston rod is controlled to extend and retract with the mode of surging manually.Hand screw 1 is fixed through after connecting housing 2 with screw rod back-up ring. The shape for being easy to manual rotary operation is processed into the one end of hand screw 1, and the other end reprocesses out one section of square pole as guide rail, with The square opening for sliding swivel nut 10 is engaged.After swivel nut 10 is slided on hand screw 1, back-up ring 9 is fixed on manual spiral shell The end of bar 1, the movement travel of limit slippage swivel nut 10.The inside of piston rod 6 is hollow and processes internal thread with sliding spiral shell The external screw thread of set 10 is engaged, piston rod 6 and linked block 3 by screw thread be spun on together with and be screwed, linked block 3 and scale Frame 4 is connected by screw, and the mobile drive linked block 3 and scale frame 4 of piston rod 6 are moved together, can be indicated by scale frame 4 The position of piston rod 6.Simultaneously as the limitation of linked block 3 and scale frame 4, piston rod 6, which can only be moved axially, to be stretched out or contracts Return, and slip swivel nut 10 can not be followed to rotate together.Oil cylinder seat 5 is provided with into, oil return opening, the whole dress of its supporting seat frame part support Put.Oil cylinder seat 5, end cap 7 and gland 8 constitute the oil cylinder housing of a closing, and the piston of piston rod 6 is moved in closing cylinder shell body It is dynamic.Hand screw 1, the conversion of realization manually with control of surging that cooperates for sliding swivel nut 10 and piston rod 6.Oil cylinder seat 5 enters, After oil return opening access hydraulic system, hydraulic oil promotes piston rod 6 to move, and piston rod 6, which drives, slides swivel nut 10 together in manual spiral shell Moved left and right on bar 1, realize extending and retracting for the control lower piston rod 6 that surges.When rotary manual screw rod 1, swivel nut is slided 10 follow and rotate together, in the case where piston rod can not be rotated, and slide swivel nut 10 and rotate while moving axially, by one After section idle stroke, the two ends of the immovable square pole for arriving to hand screw of swivel nut 10 are slided, manual spiral shell is now rotated further Bar 1, slides swivel nut 10 and is converted to the axial movement of piston rod 6, thus realize the stretching of control lower piston rod 6 manually with Retract.
In addition, piston rod 6 is provided with locating slot.Locating rod 11 is arranged on the bottom of connection housing 2 by locating rod support 22 Portion, and it is directed at the locating slot of piston rod 6.Promote locating rod 11 bottom, the circular arc concave surface on the top of locating rod 11 through locating slot with Hand screw 1 is in contact, and now hand screw 1 and piston rod 6 can not be moved, i.e. locking device;Locating rod 11 exists during release Set back in the presence of spring, device can work.
As shown in Fig. 2 main part also includes little gear 12, linkage screw 13, air valve block 14 etc..Little gear 12 and connection Connected between dynamic screw rod 13 with key, there are copper sheathing and locking nut in the both sides of little gear 12 respectively, prevent little gear 12 from moving.Link spiral shell The intermediate thread of bar 13 section is engaged with the internal thread of air valve block 14, and through linked block 3, air valve block 14 is embedded on connection housing Chute in, air valve block 14 can be moved horizontally along chute, and air valve block 14 is in contact with linked block 3 during original state.Connection Dynamic screw rod 13 is placed on the side of connection housing 2, coordinate with pneumatic control valve realize manually, the interlocking surged with pneumatic control with And sequential control.The handwheel 15 of pneumatic control valve is engaged with little gear 12, and rotation hand wheel 15 controls the opening and closing of pneumatic operated valve, Linkage screw 13 is driven to rotate simultaneously, so as to be converted to the moving horizontally along chute of air valve block 14.Due to the He of air valve block 14 The mutual limitation of linked block 3, only another part could be moved after a part removes a segment distance, that is, realize " piston rod The sequential control of stretching in place-pneumatic valve core unlatching-pneumatic valve core closing-piston rod retraction ".
As shown in figure 3, pneumatic control valve includes handwheel 15, screw rod 16, valve support 17, elevating lever 18, valve element 19, copper valve body 20 and valve support 21 etc., copper valve body 20 are arranged on connection housing 2 by valve support 21.Pneumatic control valve is utilized between screw thread Cooperation the rotary motion of handwheel 15 is converted to the linear motion of elevating lever 18 and valve element 19, so as to control the unlatching of pneumatic operated valve And closing, that is, realize the control of gas circuit.The one end of screw rod 16 is fixed after passing through handwheel 15 with nut, and the other end is by being threaded into liter Drop in the middle of bar 18.One end of elevating lever 18 processes the installation that T-slot is easy to valve element 19, it is ensured that elevating lever 18 can band movable valve plug 19 Proper motion.The two ends of copper valve body 20 have nipple to be used to access gas circuit.
Surging for the present invention controls the operation principle to be:Under original state, piston rod 6 is retracted, the valve element 19 of pneumatic control valve It is in the closed position, when hydraulic oil enters from the oil inlet of oil cylinder seat 5, promote piston rod 6 protruding, piston rod 6, which drives, to be connected Motion block 3, scale frame 4 and slip swivel nut 10 are moved together, and scale frame 4 can indicate the position that piston rod 6 stretches out;When hydraulic oil is from oil The oil return opening of cylinder seat 5 enters, and piston rod is retracted.The manual of the present invention controls the operation principle to be:Rotary manual screw rod 1, slides spiral shell Set 10 is rotated on hand screw 1 while moving, when slip swivel nut 10 can not be moved again after one section of idle stroke Wait, the rotary motion for sliding swivel nut 10 is converted to the linear motion of piston rod 6, so that piston rod can stretch out or retract.This hair Bright interlocking principle is:Due to the mutual limitation of the gentle valve retainer 14 of linked block 3, original state lower air valve block 14 is by linked block 3 block, and 15 turns of handwheel is motionless, and pneumatic operated valve can not be opened, and only when piston rod is reached, linked block 3 removes a segment distance, turns Wheel 15 start when air valve block 14 is contacted with linked block 3 again, the valve element 19 of pneumatic control valve is just opened, and realizes Pneumatic control;Realize that piston rod can not retract because air valve block 14 limits the motion of linked block 3 when pneumatic control, this Shi Shoudong, control of surging can not be acted on, and only when valve element 19 is closed, air valve block 14 is removed after a segment distance, the manual, side of surging Formula could control piston rod to retract.
In summary, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention. The present invention not only integrates manual, surged and pneumatic control mode, realizes the interlocking of control mode, and can also realize " living The sequential control of stopper rod stretching in place-pneumatic valve core unlatching-pneumatic valve core closing-piston rod retraction ".

Claims (6)

1. a kind of hand hydraulic-pneumatic control device with interlock function, it is characterized in that:Including hand screw, connection housing, linked block, Scale frame, oil cylinder seat, piston rod, end cap, gland, back-up ring, slip swivel nut, little gear, linkage screw, air valve block, pneumatic control Valve processed;Described hand screw one end is inserted in piston rod through connection housing and fixation, the other end, square pole is processed into, with cunning The square inner bore of movable snail sleeve is engaged, and is slided swivel nut and is socketed on square pole, square boom end is fixed in back-up ring, the piston rod Portion is screwed hole, is engaged with external screw thread on the slip swivel nut, end and the linked block of piston rod are connected, linked block and scale Frame is connected, and the linkage screw is horizontally set on the side of connection housing, is connected between linkage screw one end and little gear with key, Little gear both sides are respectively equipped with the copper sheathing and locking nut for preventing that it from moving, and the centre of linkage screw is on thread segment, thread segment It is socketed by screw thread after air valve block and is then passed through linked block, in the chute on air valve block insertion connection housing, the little gear It is meshed with the gear on the handwheel of pneumatic control valve.
2. the hand hydraulic-pneumatic control device according to claim 1 with interlock function, it is characterized in that:The oil cylinder seat is provided with Enter, oil return opening, oil cylinder seat, end cap and gland constitute the oil cylinder housing of a closing, and piston rod is moved in closing cylinder shell body, Its stroke is identical with sliding removable stroke of the swivel nut on hand screw.
3. the hand hydraulic-pneumatic control device according to claim 1 with interlock function, it is characterized in that:On the linked block Horizontal direction is provided with two holes, and one is screwed hole, coordinates with the piston rod end external screw thread;One is through hole, and aperture is big In the external diameter of the thread segment of the linkage screw.
4. the hand hydraulic-pneumatic control device according to claim 1 with interlock function, it is characterized in that:The pneumatic control valve Including handwheel, screw rod, valve support, elevating lever, valve element, copper valve body and valve support, screw rod one end passes through solid with nut after handwheel Fixed, the screw rod other end is by being threaded into the middle of elevating lever, and the other end of elevating lever processes T-slot fixed spool, copper valve body Two ends have nipple for accessing gas circuit.
5. the hand hydraulic-pneumatic control device according to claim 1 with interlock function, it is characterized in that:At the bottom of connection housing Portion is provided with locating rod by locating rod support, and described locating rod one end processes arc groove, in fork-shaped, the locating rod other end Equipped with fixed back-up ring, compression spring is provided between fixed back-up ring and locating rod support, piston rod is provided with what is matched with locating rod Locating slot.
6. the hand hydraulic-pneumatic control device according to claim 1 with interlock function, it is characterized in that:Contracted completely in piston rod Return in the state of pneumatic control valve core closing simultaneously, and piston rod is fully extended while pneumatic control valve core is fully opened In the state of, air valve block and linked block are just contacted.
CN201610598466.5A 2016-07-27 2016-07-27 A kind of hand hydraulic-pneumatic control device with interlock function Expired - Fee Related CN106089843B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610598466.5A CN106089843B (en) 2016-07-27 2016-07-27 A kind of hand hydraulic-pneumatic control device with interlock function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610598466.5A CN106089843B (en) 2016-07-27 2016-07-27 A kind of hand hydraulic-pneumatic control device with interlock function

Publications (2)

Publication Number Publication Date
CN106089843A CN106089843A (en) 2016-11-09
CN106089843B true CN106089843B (en) 2017-10-24

Family

ID=57448981

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610598466.5A Expired - Fee Related CN106089843B (en) 2016-07-27 2016-07-27 A kind of hand hydraulic-pneumatic control device with interlock function

Country Status (1)

Country Link
CN (1) CN106089843B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109752463B (en) * 2019-03-06 2021-04-30 山东商务职业学院 Pressure container defect detection device and detection method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214777A1 (en) * 1982-04-21 1983-10-27 Ernst 7996 Meckenbeuren Hunger Single-acting pneumatic cylinder
CN2033873U (en) * 1988-04-09 1989-03-08 朱兆坤 Fluid control device
CN200961598Y (en) * 2006-08-31 2007-10-17 江苏中显机械有限公司 Parallel type electrohydraulic pusher
CN102047005A (en) * 2008-06-03 2011-05-04 Skf公司 Linear actuator
CN204783926U (en) * 2015-06-08 2015-11-18 浙江标盛阀门制造有限公司 Cylinder with manual reset and automatic re -setting function
CN205876847U (en) * 2016-07-27 2017-01-11 中国船舶重工集团公司第七一九研究所 Hand liquid gas controlling means with interlock function

Also Published As

Publication number Publication date
CN106089843A (en) 2016-11-09

Similar Documents

Publication Publication Date Title
CN203348691U (en) Actuator component applied to valve
CN106089843B (en) A kind of hand hydraulic-pneumatic control device with interlock function
CN203948757U (en) One is changed straight journey hand automatic control check valve easily
CN203809838U (en) Novel ball valve and ball valve joint pipeline system
CN109079077A (en) A kind of two-way paddle type mill forging machinery and equipment
CN106593998A (en) Hydraulic cylinder capable of realizing self-locking through elastic part
CN102840191B (en) Oil cylinder locking device
CN211661562U (en) Intelligent equipment for mechanical manufacturing with stable clamping
DE202014006058U1 (en) Telescopic rod, which can be efficiently changed in its vertical extension length
CN205876847U (en) Hand liquid gas controlling means with interlock function
CN201172210Y (en) Manipulator for assembling cam shaft
CN207353757U (en) A kind of municipal administration electric inspection process device
CN107571469A (en) Switching mechanism for the horizontally and vertically state of manipulator in plastic piece shaping
CN205259976U (en) Can long -range liquid accuse opening type hydraulic power pincers
CN105321629A (en) Anti-dropping protective apparatus for wire coil of tubular stranding machine
CN106285282B (en) A kind of pole changer lid mechanism in deep-sea heat-insulation pressure keeping cabin
CN208304355U (en) Plug valve assembly or fitting table
CN111537286B (en) Sampling structure and water resource utilization check out test set
CN204961452U (en) Pneumatic digital spinning device
CN201090826Y (en) Ball screw valve
CN108555593A (en) Plug valve assembly or fitting table
CN208870460U (en) A kind of high level machinery garage wire rope fixing device
CN208467129U (en) A kind of efficient automatic spring machine of manufacture spring
CN208297038U (en) A kind of axial center mass measuring device based on differently contoured body
CN218542782U (en) Automatic locking mechanism of hydraulic cylinder

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171024

Termination date: 20200727