CN106957024A - A kind of single cylinder conveyer - Google Patents
A kind of single cylinder conveyer Download PDFInfo
- Publication number
- CN106957024A CN106957024A CN201710287276.6A CN201710287276A CN106957024A CN 106957024 A CN106957024 A CN 106957024A CN 201710287276 A CN201710287276 A CN 201710287276A CN 106957024 A CN106957024 A CN 106957024A
- Authority
- CN
- China
- Prior art keywords
- knob
- push rod
- cylinder
- cylinder body
- hole
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F5/00—Mobile jacks of the garage type mounted on wheels or rollers
- B66F5/04—Mobile jacks of the garage type mounted on wheels or rollers with fluid-pressure-operated lifting gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/43—Pyrotechnical jacks
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Actuator (AREA)
Abstract
The invention provides a kind of single cylinder conveyer, belong to field of mechanical technique.It solves the technical problems such as existing single cylinder conveyer troublesome poeration.This single cylinder conveyer includes pedestal and the oil cylinder being fixed on vertically on pedestal, oil cylinder includes cylinder body and piston rod, the end of piston rod is provided with the headstock, pressure release oil circuit is provided with cylinder body, connected between pressure release oil circuit and inner chamber of cylinder block by the relief hole being opened on cylinder body, positioned at the outer end of relief hole provided with the steel ball that can close the external port of relief hole in cylinder body, knob is additionally provided with cylinder body, push rod is fixed with knob, one end of push rod is spirally connected with cylinder body, the inner of push rod can lean steel ball the external port to relief hole, torsion spring is provided between knob and cylinder body, push rod has the trend leaned all the time with steel ball in the presence of torsion spring.The present invention has the advantages that easy to operate.
Description
Technical field
The invention belongs to field of mechanical technique, it is related to a kind of single cylinder conveyer.
Background technology
Single cylinder conveyer is that it has simple in construction, and easy to use is excellent in jacking devices used in field such as vehicle assemblings
Point.Single cylinder conveyer realizes jacking as power source using oil cylinder, and oil cylinder needs the pressure release could to reset after jacking is completed, mesh
It is preceding it is main control the position of steel ball to realize the connection and disconnection of cylinder cavity and pressure release oil circuit using knob, need when in use
Connection of the first turning knob to realize cylinder cavity and pressure release oil circuit carries out pressure release, need to invert again after the completion of pressure release knob by
The disconnection of cylinder cavity and pressure release oil circuit, thus needed during operation twice turning knob could complete pressure release and reset, operation compared with
Trouble；The headstock of present conveyer is check configuration simultaneously, and size can not be encountered when transporting different size of object not
With the problem of, cause unmatched object transport when can not stable position the problem of.
The content of the invention
The purpose of the present invention is there is above mentioned problem for existing technology, it is proposed that a kind of single cylinder conveyer, the present invention
The technical problem of solution is can be so that knob automatically resets.
The purpose of the present invention can be realized by following technical proposal：
A kind of single cylinder conveyer, including pedestal and the oil cylinder that is fixed on vertically on pedestal, the oil cylinder include cylinder body and work
Stopper rod, the end of the piston rod is provided with the headstock, it is characterised in that pressure release oil circuit, the pressure release oil circuit are provided with the cylinder body
Connected between inner chamber of cylinder block by the relief hole that is opened on cylinder body, positioned at the outer end of relief hole provided with can be by the cylinder body
It is additionally provided with the steel ball of the external port closing of relief hole, the cylinder body on knob, the knob and is fixed with push rod, the push rod
One end is spirally connected with cylinder body, and the inner of the push rod can lean steel ball the external port to relief hole, between the knob and cylinder body
Provided with torsion spring, the push rod has the trend leaned all the time with steel ball in the presence of torsion spring.
When conveyer holds up object, oil cylinder is pressurized, and piston rod rises headstock lifting, now work of the knob in torsion spring
Caused that push rod and steel ball are leaned with lower and closed the external port of relief hole, when conveyer by object lifting in place after, pass through red bore
Hole knob, push rod concomitant rotation, because push rod and cylinder body are spirally connected, therefore push rod meeting opposing cylinder is outwards exited, push rod meeting
Separated with steel ball, steel ball departs from the presence of hydraulic oil from the external port of relief hole, hydraulic oil can then be let out from relief hole flow direction
Press oil road so that the oil pressure in cylinder body declines, piston rod automatic fall-back, complete that only knob need to be decontroled after pressure release, knob is in torsion spring
In the presence of can turn round, the knob of revolution is rotated with push rod, push rod then can opposing cylinder move inward, push rod can again with steel
Pearl is closed the external port of relief hole against causing steel ball；By torsion spring self-return, it can be achieved without turning round knob again
Push rod resets, easy to operate.
In above-mentioned single cylinder conveyer, the knob adopts made of plastic, and the outer end of the push rod is from end inboard end
It is sequentially provided with axially position section and circumferential spacing section, the axially position section includes positioning head and shank, the positioning head
With diameter greater than the diameter of shank, the shank is connected with circumferential spacing section, and the section of spacing section of the circumference is in polygon,
The area in the spacing section of section of circumference, which is more than in the middle part of the area in shank section, the knob, is provided with spliced eye and spacing
Hole, the spacing hole matches for spacing section with circumference, and spacing section of the circumference is plugged in spacing hole and spacing section of circumference is close
The side of shank and knob against, the shank is plugged in spliced eye, the positioning head be located at the outer end of spliced eye and
Positioning head close to the side of shank can with knob against.Enable push rod fixed with respect to knob circumferential and axial by the structure
Position；Knob is constructed to reduce cost using plastics, while adopting knob made of plastic when mounted so that spliced eye has one
Fixed elasticity, therefore can make it that the positioning head being relatively large in diameter is passed through out of spliced eye, can meet the assembling between push rod and knob
Demand so that easy to assembly between push rod and knob and both are simple in construction, further saves cost.
In above-mentioned single cylinder conveyer, it is provided with the knob on positioning hole one, the cylinder body and is provided with positioning hole two, institute
The one end for stating torsion spring is plugged in positioning hole one, and the other end of the torsion spring is plugged in positioning hole two.It will be turned round by the structure
The two ends positioning of spring, torsion spring deformation can make it that in turning knob, now push rod is outwards exited, torsion spring is with slotting after knob is decontroled
The one end for being connected on positioning hole two is fulcrum so that the auto-reverse return of knob so that push rod, which is moved inward, withstands steel ball, operation side
Just.
In above-mentioned single cylinder conveyer, having on the cylinder body be provided with and let out on the protuberance of protrusion, the protuberance
Press hole just to fixing hole, the push rod penetrates fixing hole and is spirally connected with protuberance, and the push rod is penetrated in one section of fixing hole
Offer and sealing ring is cased with positioning ring groove, the positioning ring groove, the sealing ring and protuberance recline sealing.Sealing ring can be kept away
Exempt from hydraulic oil to flow out between push rod and protuberance in pressure release, it is ensured that the sealing of oil cylinder.
In above-mentioned single cylinder conveyer, the external port edge on the protuberance positioned at fixing hole is provided with guiding chamfering.
Being oriented to chamfering can facilitate push rod to penetrate fixing hole, convenient to install.
In above-mentioned single cylinder conveyer, the headstock includes sleeve and some legs being fixed on sleeve side face, if
The dry leg circular array distribution, the two ends of the sleeve have a jack one and jack two, the piston rod it is upper
End can be plugged in jack one or jack two, and one end that some legs have jack one to sleeve is bent.The structure
The headstock when the upper end of piston rod is plugged in jack two, some legs are upward so that the Area of bearing increase of the headstock, can be more
Stable holds larger object.
In above-mentioned single cylinder conveyer, when the upper end of the piston rod is plugged on jack one, the sleeve, which has, inserts
Pallet is located in the one end in hole two, and the pallet includes disk body and inserted link, and the inserted link grafting is positioned on jack two.In piston
The upper end of bar is plugged on the jack location tray on spliced eye two for the moment, and now leg is stepped down down, can be stablized by pallet
Hold less object.
The headstock, which can turn upside down, to be used, according to the actual size to be lifted object come for using, it is ensured that conveyer exists
Stability during lifting object.
Compared with prior art, it is that push rod can be achieved to reset that this single cylinder conveyer, which has without revolution torsion spring again, operation
Convenient advantage.
Brief description of the drawings
Fig. 1 is the side structure schematic view of this single cylinder conveyer.
Fig. 2 is the cross section structure diagram of knob and cylinder body junction.
Fig. 3 is the cross section structure diagram of the headstock.
In figure, 1, pedestal；2nd, oil cylinder；21st, cylinder body；211st, pressure release oil circuit；212nd, relief hole；213rd, positioning hole two；214、
Protuberance；215th, fixing hole；216th, it is oriented to chamfering；22nd, piston rod；3rd, the headstock；31st, sleeve；311st, jack one；312nd, jack
Two；32nd, leg；33rd, pallet；4th, steel ball；5th, sealing ring；6th, knob；61st, spliced eye；62nd, spacing hole；63rd, positioning hole one；7、
Torsion spring；8th, push rod；81st, positioning head；82nd, shank；83rd, it is circumferential spacing section.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figure 1 to Figure 3, single cylinder conveyer includes pedestal 1 and the oil cylinder 2 being fixed on vertically on pedestal 1, and oil cylinder 2 is wrapped
Cylinder body 21 and piston rod 22 are included, the end of piston rod 22, which is provided with the headstock 3, cylinder body 21, is provided with pressure release oil circuit 211, pressure release oil circuit
Connected between 211 and the inner chamber of cylinder body 21 by the relief hole 212 being opened on cylinder body 21, positioned at relief hole 212 in cylinder body 21
Outer end, which is provided with to be additionally provided with knob 6, knob 6 on the steel ball 4 that can close the external port of relief hole 212, cylinder body 21, is fixed with top
Bar 8, one end and the cylinder body 21 of push rod 8 are spirally connected, and the inner of push rod 8 can lean steel ball 4 external port to relief hole 212, knob 6
Torsion spring 7 is provided between cylinder body 21, the push rod 8 has the trend leaned all the time with steel ball 4 in the presence of torsion spring 7.
Knob 6 adopts made of plastic, and the outer end of push rod 8 is sequentially provided with axially position section and circumferential spacing from end inboard end
Section 83, axially position section includes positioning head 81 and shank 82, the diameter with diameter greater than shank 82 of positioning head 81, shank
82 are connected with circumferential spacing section 83, and circumferential spacing section 83 section is in polygon, and the area in circumferential spacing section of 83 sections, which is more than, to be inserted
The area in the section of extension bar 82, the middle part of knob 6 is provided with spliced eye 61 and spacing hole 62, spacing hole 62 and circumferential spacing section of 83 phases
Match somebody with somebody, circumferential spacing section 83 is plugged in spacing hole 62 and circumferential spacing section 83 side close to shank 82 and knob 6 are against inserting
Extension bar 82 is plugged in spliced eye 61, and positioning head 81 is located at the outer end of spliced eye 61 and positioning head 81 is close to the side of shank 82
Can with knob 6 against.By the structure push rod 8 is positioned with respect to the circumferential and axial of knob 6；Knob 6 uses plastics system
Into cost can be reduced, while adopting knob 6 made of plastic when mounted so that spliced eye 61 has certain elasticity, therefore energy
So that the positioning head 81 being relatively large in diameter is passed through out of spliced eye 61, the assembling demand between push rod 8 and knob 6 can be met.
It is provided with knob 6 on positioning hole 1, cylinder body 21 and is provided with positioning hole 2 213, one end of torsion spring 7 is plugged on positioning hole
In one 63, the other end of torsion spring 7 is plugged in positioning hole 2 213.The two ends of torsion spring 7 are positioned by the structure, rotation is being rotated
The deformation of torsion spring 7 can make it that during button 6, now push rod 8 is outwards exited, torsion spring 7 is to be plugged on positioning hole 2 213 after knob 6 is decontroled
One end cause the auto-reverse return of knob 6 for fulcrum so that push rod 8, which is moved inward, withstands steel ball 4.
There is the protuberance 214 of protrusion on cylinder body 21, be provided with protuberance 214 with relief hole 212 just to fixing hole
215, push rod 8 penetrates fixing hole 215 and is spirally connected with protuberance 214, and push rod 8, which is penetrated, offers positioning in one section of fixing hole 215
It is cased with sealing ring 5 in annular groove, positioning ring groove, sealing ring 5 and protuberance 214 recline sealing.Sealing ring 5 is avoided that hydraulic oil is being let out
Flowed out during pressure between push rod 8 and protuberance 214.Guiding is provided with protuberance 214 positioned at the external port edge of fixing hole 215 to fall
Angle 216.Being oriented to chamfering 216 can facilitate push rod 8 to penetrate fixing hole 215.
The headstock 3 includes sleeve 31 and some legs 32 being fixed on the side face of sleeve 31, some circular arrays of leg 32
Distribution, the two ends of sleeve 31 have jack 1 and jack 2 312, and the upper end of piston rod 22 can be plugged to jack 1
Or in jack 2 312, one end that some legs 32 have jack 1 to sleeve 31 is bent.The headstock 3 of the structure is in work
Some legs 32 are upward when being plugged in jack 2 312 for the upper end of stopper rod 22 so that the Area of bearing increase of the headstock 3, can be more steady
Fixed holds larger object.When the upper end of piston rod 22 is plugged on jack 1, sleeve 31 has the one of jack 2 312
Pallet 33 is located in end, and pallet 33 includes disk body and inserted link, and inserted link grafting is positioned on jack 2 312.In the upper of piston rod 22
End location tray 33 on spliced eye 61 2 when being plugged on jack 1, now leg 32 step down down, can be steady by pallet 33
Fixed holds less object.The headstock 3, which can turn upside down, to be used, and is used according to the actual size to be lifted object to be directed to,
Ensure stability of the conveyer in lifting object.
When conveyer holds up object, oil cylinder 2 is pressurized, and piston rod 22 rises the lifting of the headstock 3, and now knob 6 is in torsion spring
Cause that push rod 8 and steel ball 4 are leaned the external port closing of relief hole 212 in the presence of 7, when conveyer by object lifting in place
Afterwards, by red knob 6 of getting into the cave, the concomitant rotation of push rod 8, because push rod 8 and cylinder body 21 are spirally connected, therefore push rod 8 can relative cylinder
Body 21 is outwards exited, and push rod 8 can be separated with steel ball 4, and steel ball 4 departs from the presence of hydraulic oil from the external port of relief hole 212,
Hydraulic oil then can flow to pressure release oil circuit 211 from relief hole 212 so that the oil pressure in cylinder body 21 declines, the automatic fall-back of piston rod 22,
Complete that only knob 6 need to be decontroled after pressure release, knob 6 can be turned round in the presence of torsion spring 7, and the knob 6 of revolution is rotated with push rod 8,
Push rod 8 then can opposing cylinder 21 move inward, push rod 8 can be again with steel ball 4 against causing steel ball 4 by the outer end of relief hole 212
Mouth closing.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (7)
1. a kind of single cylinder conveyer, including pedestal and the oil cylinder that is fixed on vertically on pedestal, the oil cylinder includes cylinder body and piston
Bar, the end of the piston rod is provided with the headstock, it is characterised in that be provided with pressure release oil circuit on the cylinder body, the pressure release oil circuit and
Connected, will be let out provided with energy positioned at the outer end of relief hole in the cylinder body by the relief hole being opened on cylinder body between inner chamber of cylinder block
Press to be additionally provided with knob, the knob on the steel ball of the external port closing in hole, the cylinder body and be fixed with push rod, the one of the push rod
End is spirally connected with cylinder body, and the inner of the push rod can lean steel ball the external port to relief hole, be set between the knob and cylinder body
There is torsion spring, the push rod has the trend leaned all the time with steel ball in the presence of torsion spring.
2. single cylinder conveyer according to claim 1, it is characterised in that the knob adopts made of plastic, the push rod
Outer end be sequentially provided with axially position section and circumferential spacing section from end inboard end, the axially position section includes positioning head and inserted
Extension bar, the diameter with diameter greater than shank of the positioning head, the shank is connected with circumferential spacing section, and the circumference is spacing
The section of section is in polygon, and the area in the spacing section of section of circumference is more than the area in shank section, the middle part of the knob
Spliced eye and spacing hole are provided with, the spacing hole matches with circumferential spacing section, and spacing section of the circumference is plugged in spacing hole
And the circumferential spacing section side close to shank with knob against the shank is plugged in spliced eye, the positioning head position
In the outer end of spliced eye and positioning head close to the side of shank can with knob against.
3. single cylinder conveyer according to claim 1, it is characterised in that positioning hole one, the cylinder are provided with the knob
Positioning hole two is provided with body, one end of the torsion spring is plugged in positioning hole one, and the other end of the torsion spring is plugged on positioning hole
In two.
4. single cylinder conveyer according to claim 1, it is characterised in that there is the protuberance of protrusion, institute on the cylinder body
State be provided with protuberance with relief hole just to fixing hole, the push rod penetrates fixing hole and is spirally connected with protuberance, the push rod
Penetrate and positioning ring groove is offered in one section of fixing hole, sealing ring, the sealing ring and protuberance are cased with the positioning ring groove
Recline sealing.
5. single cylinder conveyer according to claim 4, it is characterised in that be located at the external port of fixing hole on the protuberance
Edge is provided with guiding chamfering.
6. single cylinder conveyer according to claim 1, it is characterised in that the headstock includes sleeve and is fixed on sleeve week
Some legs on face, some leg circular array distributions, the two ends of the sleeve have jack one and jack
Two, the upper end of the piston rod can be plugged in jack one or jack two, and some legs have jack one to sleeve
One end bending.
7. single cylinder conveyer according to claim 6, it is characterised in that be plugged on jack one in the upper end of the piston rod
There is the sleeve one end of jack two pallet is located when upper, and the pallet includes disk body and inserted link, and the inserted link grafting is determined
Position is on jack two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287276.6A CN106957024A (en) | 2017-04-27 | 2017-04-27 | A kind of single cylinder conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287276.6A CN106957024A (en) | 2017-04-27 | 2017-04-27 | A kind of single cylinder conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106957024A true CN106957024A (en) | 2017-07-18 |
Family
ID=59485108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710287276.6A Pending CN106957024A (en) | 2017-04-27 | 2017-04-27 | A kind of single cylinder conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106957024A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991004926A2 (en) * | 1989-09-26 | 1991-04-18 | Fluoroware, Inc. | Disk shipper |
| JP2002274250A (en) * | 2001-03-16 | 2002-09-25 | Kyushu Sanki Kk | Heavy cargo transporting dolly and transporting device equipped with it |
| CN201023434Y (en) * | 2007-02-13 | 2008-02-20 | 中国人民解放军后勤工程学院 | Vehicle-mounted fast loading and unloading device |
| CN201751333U (en) * | 2010-06-30 | 2011-02-23 | 平湖市通力机械有限公司 | Hydraulic conveyor |
| CN102225713A (en) * | 2011-04-01 | 2011-10-26 | 常熟通润汽车零部件股份有限公司 | Hydraulic vertical-type conveying device |
| US20120057954A1 (en) * | 2010-08-24 | 2012-03-08 | Quality Stainless Products, Inc. | Wheel Assembly Positioning Device |
| CN103615426A (en) * | 2013-11-08 | 2014-03-05 | 常熟通润汽车修理设备有限公司 | Oil cylinder structure of hydraulic upright conveyer |
| CN103708377A (en) * | 2013-12-23 | 2014-04-09 | 常熟通润汽车零部件股份有限公司 | Adjustable hydraulic jack with sliding block locking structure |
| CN203680232U (en) * | 2014-02-10 | 2014-07-02 | 张洪岐 | Adjustable supporting device for disassembling and assembling gate valve |
| US20150122965A1 (en) * | 2013-11-04 | 2015-05-07 | Harry H. Arzouman | Commercial lifting device-jack stand |
| CN106429944A (en) * | 2016-11-01 | 2017-02-22 | 沈阳双壹市政工程有限公司 | Gas lifting jack for excavator |
| CN206705594U (en) * | 2017-04-27 | 2017-12-05 | 平湖市通力机械有限公司 | A kind of single cylinder conveyer |
-
2017
- 2017-04-27 CN CN201710287276.6A patent/CN106957024A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991004926A2 (en) * | 1989-09-26 | 1991-04-18 | Fluoroware, Inc. | Disk shipper |
| JP2002274250A (en) * | 2001-03-16 | 2002-09-25 | Kyushu Sanki Kk | Heavy cargo transporting dolly and transporting device equipped with it |
| CN201023434Y (en) * | 2007-02-13 | 2008-02-20 | 中国人民解放军后勤工程学院 | Vehicle-mounted fast loading and unloading device |
| CN201751333U (en) * | 2010-06-30 | 2011-02-23 | 平湖市通力机械有限公司 | Hydraulic conveyor |
| US20120057954A1 (en) * | 2010-08-24 | 2012-03-08 | Quality Stainless Products, Inc. | Wheel Assembly Positioning Device |
| CN102225713A (en) * | 2011-04-01 | 2011-10-26 | 常熟通润汽车零部件股份有限公司 | Hydraulic vertical-type conveying device |
| US20150122965A1 (en) * | 2013-11-04 | 2015-05-07 | Harry H. Arzouman | Commercial lifting device-jack stand |
| CN103615426A (en) * | 2013-11-08 | 2014-03-05 | 常熟通润汽车修理设备有限公司 | Oil cylinder structure of hydraulic upright conveyer |
| CN103708377A (en) * | 2013-12-23 | 2014-04-09 | 常熟通润汽车零部件股份有限公司 | Adjustable hydraulic jack with sliding block locking structure |
| CN203680232U (en) * | 2014-02-10 | 2014-07-02 | 张洪岐 | Adjustable supporting device for disassembling and assembling gate valve |
| CN106429944A (en) * | 2016-11-01 | 2017-02-22 | 沈阳双壹市政工程有限公司 | Gas lifting jack for excavator |
| CN206705594U (en) * | 2017-04-27 | 2017-12-05 | 平湖市通力机械有限公司 | A kind of single cylinder conveyer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170718 |