CN203249831U - Pipe length infinite adapting spin shifter of hydrostatic testing machine - Google Patents
Pipe length infinite adapting spin shifter of hydrostatic testing machine Download PDFInfo
- Publication number
- CN203249831U CN203249831U CN 201320222896 CN201320222896U CN203249831U CN 203249831 U CN203249831 U CN 203249831U CN 201320222896 CN201320222896 CN 201320222896 CN 201320222896 U CN201320222896 U CN 201320222896U CN 203249831 U CN203249831 U CN 203249831U
- Authority
- CN
- China
- Prior art keywords
- carrier
- nut
- electrodeless
- testing machine
- rotating device
- 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
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a pipe length infinite adapting spin shifter of a hydrostatic testing machine, which comprises a bearing rack, a mounting structure is processed at one end of the bearing rack, a proximity switch is mounted in the mounting structure, a driving mechanism is mounted on the bearing rack, and the driving mechanism drives the bearing rack to conduct reciprocating moving along self axis. According to the device provided by the utility model, the transmission mode of adopting a hydraulic motor to drive a screw nut pair through chain transmission and further drive a mobile sealing device to move is adopted, so as to enable the giant axial direction water pressure in the pressure test process to be borne by the screw nut, the power can not bend steel pipes, and the rigidity and self-locking of the device guarantee that the mobile dealing device not concede under high pressure; defects, in the previous pressure test process, that the over large propulsive force of the main hydraulic cylinder bends the steel pipes, and makes the main hydraulic cylinder to concede and damages the sealing ring are overcome; through the adoption of the spiral moving in the pipe length direction, the change of the pipe rang can be adapted infinitely.
Description
Technical field
The utility model belongs to hydraulic testing equipment technical field, relates to a kind of hydraulic testing equipment, is specifically related to a kind ofly carry out the electrodeless adaptation rotating device of the necessary pipe range of withstand voltage test for boiler steel pipe, petroleum oil well pipe, line pipe etc.
Background technology
Along with the growth of industrial and agricultural production in the world wide and service sector, the development of forwarding business and the raising of living standards of the people, human society is to the market demand expanding day of this class energy of petroleum gas.Petroleum exploration and development, the particularly construction of natural gas fields constantly enlarge oil pipe, sleeve pipe demand in recent years.According to the requirement of SY/T 6194 " sleeve pipe and oil pipe ", oil with oil, sleeve pipe must be by hydrostatic test before dispatching from the factory, using.Because tested steel pipe length difference is very large, for satisfying pressure testing on the long and short Guan Zaiyi platform equipment, an end sealing device that just necessarily requires hydrostatic testing machine greatly stroke moves forward and backward.The large stroke of traditional packoff moves mainly and satisfies by large stroke fluid cylinder, and cost is high, and speed is slow, if main fluid cylinder thrust is crossed conference bending steel pipe in the simultaneously pressure testing process, the little main fluid cylinder of thrust is made a concession can the damage O-ring seal.And being subjected to the restriction of fluid cylinder stroke, the variation of tested pipe range can not be too large.
Summary of the invention
The purpose of this utility model is to overcome the problem that prior art exists, and provides a kind of hydrostatic testing machine pipe range electrodeless adaptation rotating device, can solve the drawback of the excessive bending steel pipe of main fluid cylinder thrust in the pressure testing process, main fluid cylinder yielding damage water-pressure sealed circle; Simultaneously owing to adopting spiral to move in the pipe range direction, variation that can electrodeless adaptation pipe range.
For achieving the above object, the utility model adopts following technical scheme: the electrodeless adaptation rotating device of a kind of hydrostatic testing machine pipe range, comprise carrier, carrier one end is processed with mounting structure, in this mounting structure approach switch is installed, driving mechanism also is installed on the carrier, and this driving mechanism drives carrier and moves back and forth along self axis.
Described mounting structure comprises the cylindrical hole of being located at carrier one end and the open slot of being located on the carrier, and this open slot communicates with cylindrical hole, in this open slot approach switch is installed.
Described carrier is installed on the walking dolly, and walking dolly is placed on two guide rails, and can move back and forth along guide rail, is connected with respectively mechanical stop limiter on two guide rails, and the residing position of mechanical stop limiter is the rear extreme position that walking dolly arrives.
Described driving mechanism comprises power-driven mechanism and the two cover bindiny mechanisms that are located at the carrier other end, be equipped with a rhizoid thick stick in the every cover bindiny mechanism, one end of leading screw passes bindiny mechanism, the other end of leading screw passes carrier, all be set with a nut on every rhizoid thick stick, nut is between bindiny mechanism and carrier, and this power-driven mechanism drive nut rotates, so that nut can move back and forth along the axis direction of leading screw.
Described bindiny mechanism comprises the throw-out collar bearing that is installed on the carrier end face, one end of throw-out collar bearing is connected with carrier, the other end of throw-out collar bearing is connected with an end of throw-out collar, the other end of throw-out collar is provided with the through hole of axis and nut axis coaxle, one end of the leading screw that stretches out from nut passes this through hole, and stretch out outside the throw-out collar, nut drives rotation by power-driven mechanism.
Described power-driven mechanism comprises the oil motor that is installed on the carrier end face and the first sprocket wheel that is installed on the nut outer wall, the fluid motor-driven transmission shaft, duplex chain wheel is installed on the transmission shaft, and this duplex chain wheel is connected with two the first sprocket wheels respectively by two driving chains.
Described nut outer wall is provided with step, and the first sprocket wheel is installed on this step.
This electrodeless adaptation rotating device also comprises the leading screw hanger bracket of split type structure, and the leading screw hanger bracket is comprised of two clips that are bolted.
Oil motor in the electrodeless adaptation rotating device of the utility model hydrostatic testing machine pipe range drives screw pair drive moving sealing device by the chain transmission and advances, and then promotes steel pipe arrival regulation position; Steel pipe is carried out the axial force that hydrostatic test process mesohigh water produces born by feed screw nut, finally pass to frame and carry.Its underpower is with the bending steel pipe, and its rigidity, self-locking have guaranteed that under high pressure packoff can not made a concession.Avoided the excessive bending steel pipe of main fluid cylinder thrust in the in the past pressure testing process, main fluid cylinder to make a concession the drawback of damaging O-ring seal.Simultaneously owing to adopting spiral to move in the pipe range direction, variation that can the electrodeless adaptation steel pipe of grand movement length.Simple in structure, be easy to control, easy to maintenance, device security is reliable, is applicable to the hydraulic testing of all size steel pipe.
Description of drawings
Fig. 1 is the structural representation of the electrodeless adaptation rotating device of the utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 be in the electrodeless adaptation rotating device of the utility model carrier configuration partly cut open vertical view.
Fig. 5 is the left view of leading screw hanger bracket in the electrodeless adaptation rotating device of the utility model.
Among the figure: 1. the large Beam of frame, 2. leading screw, 3. leading screw hanger bracket, 4. carrier, 5. grommet, 6. nut, 7. the first sprocket wheel, 8. driving chain, 9. walking dolly, 10. throw-out collar bearing, 11. throw-out collars, 12. second sprocket wheels, 13. oil motor, 14. bearing seats, 15. wheels, 16. guide rails, 17. cylindrical hole, 18. mechanical stop limiters, 19. rear sensor blocks, 20.U the shape groove, 21. carrying covers, 22. screw rods, 23. front sensor block, 24. tensioning system, 25. bearings, 26. transmission shaft, 27. first keys, 28. second keys, 29. expansion tightening wheel, 30. packoffs, 31. support bodys, 32. loading plate, 33. clips, 34. bolts.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Such as Fig. 1, Fig. 2 and shown in Figure 3, the electrodeless adaptation rotating device of the utility model, comprise walking dolly 9, walking dolly 9 is placed on two guide rails 16, the wheel 15 of walking dolly 9 contacts with guide rail 16, walking dolly 9 can move back and forth along guide rail 16, is connected with respectively mechanical stop limiter 18 on two guide rails 16, and mechanical stop limiter 18 residing positions are the last extreme position that walking dolly 9 can arrive; Structure carrier 4 as shown in Figure 4 is installed on the walking dolly 9, and carrier 4 comprises the support body 31 of " protruding " font, and the end face of the larger end of support body 31 sizes is provided with loading plate 32, and support body 31 both sides are equipped with carrying cover 21; Loading plate 32 is provided with cylindrical hole 17, the axis coaxle of the axis of cylindrical hole 17 and support body 31, support body 31 is provided with opening towards the U-lag 20 of loading plate 32, U-lag 20 communicates with cylindrical hole 17, an approach switch is installed in the U-lag 20, near the large Beam of frame place two other approach switch is installed along the axis direction of carrier 4, the same side, carrier 4 top; Two carrying cover 21 axis with respect to support body 31 are symmetrical arranged; Two throw-out collar bearings 10 are installed on the end face of the less end of support body 31 sizes, one end of throw-out collar bearing 10 is connected with support body 31, the other end of throw-out collar bearing 10 is towards the direction away from support body 31, be connected with an end of throw-out collar 11, the other end of throw-out collar 11 is provided with through hole, this through hole and the coaxial setting of endoporus of carrying cover 21.Be provided with nut 6 between throw-out collar 11 and the carrying cover, be provided with grommet 5 between nut 6 and the carrying cover 21, grommet 5 is fixedly connected with carrying cover 21; Carrying cover 21, loading plate 32, support body 31 and grommet 5 integrant carriers 4, nut 6 is connected with leading screw 2 by internal thread, one end of leading screw 2 stretches out the through hole that passes on the throw-out collar 11 from an end of nut 6 and stretches out outside the throw-out collar 11, the other end of leading screw 2 stretches out from the other end of nut 6, passing successively grommet 5 and carrying cover 21 stretches out outside the carrying cover 21, leading screw 2 is fixedly connected with the large Beam 1 of frame, nut 6 can rotate around self axis, and can move back and forth along the axis direction of leading screw 2, the outer wall of nut 6 is provided with step, the first sprocket wheel 7, the first sprocket wheels 7 and nut 6 formation nut assemblies are installed on this step; The end face middle part of the less end of support body 31 sizes is equipped with bearing seat 14, on the end face of bearing seat 14 away from carrier 4 oil motor 13 is installed, bearing seat 14 is connected with transmission shaft 26 by bearing 25, the output shaft of oil motor 13 drives transmission shaft 26 by first key 27 and rotates, be set with the second sprocket wheel 12 on the transmission shaft 26, the second sprocket wheel 12 is duplex chain wheel, and transmission shaft 26 drives the second sprocket wheel 12 by the second key 28 and rotates; The second sprocket wheel 12 is connected with two the first sprocket wheels 7 respectively by two driving chains 8; Two cover tensioning system 24 also are installed, by the stretching pulley 29 tensioning driving chains 8 on the tensioning system 24 on the walking dolly 9.All approach switchs all are electrically connected with the main control unit of hydrostatic testing machine.
The electrodeless adaptation rotating device of the utility model is installed on the frame of hydrostatic testing machine, make the direction of motion of walking dolly 9 consistent with the longitudinal centre line direction of hydrostatic testing machine frame, make loading plate 32 towards the packoff 30 of hydrostatic testing machine, make the coaxial setting of sender bar of the interior sender of cylindrical hole 17 and packoff 30 mechanism, the central cross-section of carrier 4 overlaps with the central cross-section of frame 1.Leading screw 2 two ends all are fixedly connected with the large Beam 1 of frame, the length and the leading screw 2 that stretch out carrying cover 21 according to leading screw 2 stretch out throw-out collar 11 length, also be provided with the leading screw hanger bracket 3 of respective numbers, leading screw hanger bracket 3 is fixedly connected with the large Beam 1 of frame, the structure of leading screw hanger bracket 3 as shown in Figure 5, comprise the screw rod 22 that vertically is installed on the large Beam 1 of frame, screw rod 22 lower ends are connected with the support ring that is comprised of two clips 33, and two clips 33 are connected by bolt 34.Leading screw 2 passes the support ring on the leading screw hanger bracket 3, tights a bolt 34, makes two clips, 33 chucking leading screws 2.Sensor block 19 and front sensor block 23 after installing respectively on the large Beam 1 of frame corresponding with carrier 4 installation approach switchs one side, front sensor block 23 is installed in the front position that carrier 4 arrives on the large Beam 1 of frame, and rear sensor block 19 is installed in the rearmost position that carrier 4 arrives on the large Beam 1 of frame; In order to shorten this electrodeless adaptation rotating device no-load running time, generally can according to batch managed by the test steel pipe long tube can the position adjustment of bulge test after the position of sensor block 19 on the large Beam 1 of frame, in order to improve test efficiency.
When steel pipe carries out hydrostatic test, after main frame feeding device is placed on main frame pressure testing center with steel pipe, the energising of system master unit, oil motor 13 is by 6 rotations of chain transmission drive nut, nut 6 will rotatablely move and convert traveling priority to by leading screw 2, torque conversion is become thrust, plane by grommet 5 promotes carrier 4 along leading screw 2 traveling priority forward, walking dolly 9 is mobile in the same way with carrier 4 along guide rail 16, carrier 4 drives moving sealing device 30 and advances, and then promoting the position that steel pipe arrives regulation, steel pipe halts; At this moment, carrier 4 drives moving sealing device 30 and moves on, steel pipe will promote the sender bar of the interior sender of moving sealing device 30 mechanism and sender disk and pass cylindrical hole 17 and extend in the U-lag 20, until after the approach switch induction in sender disk and the U-lag 20, the outage of system master unit, instruction oil motor 13 quits work, in this process, the power of oil motor 13 is mainly used to overcome frictional resistance and the frictional resistance between car wheel 15 and the guide rail 16 of screw pair and promote tested steel pipe movement, and its underpower is with the bending steel pipe; Boost, during pressurize, the axial force that water under high pressure produces directly acts on carrier 4, carrier 4 by grommet 5 with this axial force transmission to screw pair, and finally pass to frame and carry, its rigidity, self-locking guarantee that under high pressure conditions mobile packoff 30 can not make a concession, and have avoided the excessive bending steel pipe of main fluid cylinder thrust in the in the past pressure testing process, main fluid cylinder to make a concession the drawback of damaging O-ring seal; After pressurize finishes also release, the system master unit oppositely switches on, oil motor 13 reverse rotations, by 6 reverse rotations of chain transmission drive nut, nut 6 is mobile backward along the axis of leading screw 2, at this moment, it is mobile backward that nut 6 rear end faces promote throw-out collar 11, throw-out collar 11 is mobile backward by throw-out collar bearing 10 pulling carriers 4, until after approach switch is responded on the plane on rear limited block 19 and the carrier 4, the outage of system master unit, instruction oil motor 13 quits work, this electrodeless adaptation rotating device turns back to initial position, finishes the pressure testing of a steel pipe.
This electrodeless adaptation rotating device is take hydraulic power source as power.In hydrostatic pressure testing process, owing to will adapt to steel pipe length wide variation, it is very long that leading screw 2 designs, cause leading screw 2 sagging, endoporus with the carrying of carrier 4 flanks cover 21 in the use procedure produces the card of spraining, can cause this electrodeless adaptation rotating device to move not smooth, thereby be provided with leading screw hanger bracket 3 at leading screw 2, be used for eliminating the sagging phenomenon of leading screw 2, leading screw hanger bracket 3 is split type structure, two parts and envelope are around leading screw 2 external diameters about minute, and upper part is fixedly connected with by screw rod 22 with frame 3.In the process of the test, when this rotating device advanced, nut 2 front end faces should be fitted fully with the end face of grommet 5, and are gapped between nut 2 rear end faces and throw-out collar 11 end faces, just can move forward without spraining card, just can bear the axial force that water under high pressure produces.When this rotating device retreated, nut 2 rear end faces should be fitted fully with throw-out collar 11 end faces, and are gapped between nut 2 front end faces and grommet 5 end faces, could move backward without spraining card.
In order to prevent on the carrier 4 that the plane all lost efficacy near two approach switchs in frame large Beam 1 place, rear limited block 19 does not play position-limiting action, can cause this rotating device to be moved beyond backward rear extreme position and stuck, is provided with mechanical stop limiter 18 at guide rail 16.In order to prevent that driving chain is loose after 8 running a period of times, cause the chain transmission to turn round, also be provided with tensioning system 24 on the walking dolly 9, in order to adjust the tension and relaxation degree of driving chain 8.
The electrodeless adaptation rotating device of the utility model hydrostatic testing machine pipe range adopts the screw thread pair transmission in the pipe range direction, variation that can the electrodeless adaptation steel pipe of grand movement length, also because screw thread pair adopts saw-tooth thread, thereby have the advantages that transmission efficiency is high, load-bearing capacity is strong, be applicable to the hydraulic testing of all size steel pipe.
Claims (8)
1. electrodeless adaptation rotating device of hydrostatic testing machine pipe range, it is characterized in that, comprise carrier (4), carrier (4) one ends are processed with mounting structure, in this mounting structure approach switch is installed, carrier also is equipped with driving mechanism on (4), and this driving mechanism drives carrier (4) and moves back and forth along carrier (4) self axis.
2. the electrodeless adaptation rotating device of hydrostatic testing machine pipe range as claimed in claim 1, it is characterized in that, described mounting structure comprises the cylindrical hole (17) of being located at carrier (4) one ends and is located at open slot on the carrier (4), this open slot communicates with cylindrical hole (17), in this open slot approach switch is installed.
3. the electrodeless adaptation rotating device of hydrostatic testing machine pipe range as claimed in claim 1, it is characterized in that, described carrier (4) is installed on the walking dolly (9), walking dolly (9) is placed on two guide rails (16), and can move back and forth along guide rail (16), be connected with respectively mechanical stop limiter (18) on two guide rails (16), the residing position of mechanical stop limiter (18) is the rear extreme position that walking dolly (9) arrives.
4. the electrodeless adaptation rotating device of hydrostatic testing machine pipe range as claimed in claim 1, it is characterized in that, described driving mechanism comprises power-driven mechanism and the two cover bindiny mechanisms that are located at carrier (4) other end, all be set with a rhizoid thick stick (2) in the every cover bindiny mechanism, one end of leading screw (2) passes bindiny mechanism, the other end of leading screw (2) passes carrier (4), all be set with a nut (6) on every rhizoid thick stick (2), nut (6) is positioned between bindiny mechanism and the carrier (4), this power-driven mechanism drive nut (6) rotates, so that nut (6) can move back and forth along the axis direction of leading screw (2).
5. the electrodeless adaptation rotating device of hydrostatic testing machine pipe range as claimed in claim 4, it is characterized in that, described bindiny mechanism comprises the throw-out collar bearing (10) that is installed on carrier (4) end face, one end of throw-out collar bearing (10) is connected with carrier (4), the other end of throw-out collar bearing (10) is connected with an end of throw-out collar (11), the other end of throw-out collar (11) is provided with the through hole of axis and nut (6) axis coaxle, one end of the leading screw (2) that stretches out from nut (6) passes this through hole, and stretch out outside the throw-out collar (11), nut (6) drives rotation by power-driven mechanism.
6. such as claim 4 or the electrodeless adaptation rotating device of 5 described hydrostatic testing machine pipe ranges, it is characterized in that, described power-driven mechanism comprises the oil motor (13) that is installed on carrier (4) end face and is installed on the first sprocket wheel (7) on nut (6) outer wall, oil motor (13) drives transmission shaft (16), transmission shaft is equipped with duplex chain wheel on (16), and this duplex chain wheel is connected with two the first sprocket wheels (7) respectively by two driving chains (8).
7. the electrodeless adaptation rotating device of hydrostatic testing machine pipe range as claimed in claim 6 is characterized in that, described nut (6) outer wall is provided with step, and the first sprocket wheel (7) is installed on this step.
8. the electrodeless adaptation rotating device of hydrostatic testing machine pipe range as claimed in claim 1, it is characterized in that, this electrodeless adaptation rotating device also comprises the leading screw hanger bracket (3) of split type structure, and leading screw hanger bracket (3) is comprised of two clips (33) that connect by bolt (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320222896 CN203249831U (en) | 2013-04-27 | 2013-04-27 | Pipe length infinite adapting spin shifter of hydrostatic testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320222896 CN203249831U (en) | 2013-04-27 | 2013-04-27 | Pipe length infinite adapting spin shifter of hydrostatic testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203249831U true CN203249831U (en) | 2013-10-23 |
Family
ID=49376264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320222896 Expired - Fee Related CN203249831U (en) | 2013-04-27 | 2013-04-27 | Pipe length infinite adapting spin shifter of hydrostatic testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203249831U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234811A (en) * | 2013-04-27 | 2013-08-07 | 甘肃蓝科石化高新装备股份有限公司 | Pipe length stepless adaptive spiral moving device of hydrostatic testing machine |
| CN113588441A (en) * | 2021-09-28 | 2021-11-02 | 南通三锐化工装备有限公司 | Stepless adaptation and rotation device for pipe length of hydrostatic testing machine |
-
2013
- 2013-04-27 CN CN 201320222896 patent/CN203249831U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234811A (en) * | 2013-04-27 | 2013-08-07 | 甘肃蓝科石化高新装备股份有限公司 | Pipe length stepless adaptive spiral moving device of hydrostatic testing machine |
| CN103234811B (en) * | 2013-04-27 | 2016-09-14 | 甘肃蓝科石化高新装备股份有限公司 | Hydrostatic testing machine pipe range electrodeless adaptation rotating device |
| CN113588441A (en) * | 2021-09-28 | 2021-11-02 | 南通三锐化工装备有限公司 | Stepless adaptation and rotation device for pipe length of hydrostatic testing machine |
| CN113588441B (en) * | 2021-09-28 | 2021-11-30 | 南通三锐化工装备有限公司 | Stepless adaptation and rotation device for pipe length of hydrostatic testing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203245768U (en) | Tube body synchronous clamping device | |
| CN202291911U (en) | Welding device for automobile silencer | |
| CN203249831U (en) | Pipe length infinite adapting spin shifter of hydrostatic testing machine | |
| CN103290587B (en) | Automatic opening and closing device for hank reels of hank reeling machine | |
| CN107008829A (en) | A kind of construction Machines reinforcement metal straightening cutter device | |
| CN102951573A (en) | Electric lifting rod | |
| CN107934691B (en) | A kind of band extends the pipe-coiling rack of support arm | |
| CN103234811A (en) | Pipe length stepless adaptive spiral moving device of hydrostatic testing machine | |
| CN101494359B (en) | Extra high voltage line multifunctional combined galloping | |
| CN101644153A (en) | Synchronous control system of injection head and wound roll of continuous oil pipe operating machine and control method thereof | |
| CN111038669B (en) | Submarine pipeline detection type underwater robot | |
| CN203820619U (en) | Furnace body lifting device of glass heating furnace | |
| CN202344034U (en) | Fully-automatic metal band sawing machine | |
| CN201329370Y (en) | Tube milling machine cover moving device | |
| CN108979568A (en) | A kind of coiled tubing safety winding pipe racking device of no auxiliary hydraulic motor | |
| CN202485903U (en) | Valve clamping mechanism in large valve testing device | |
| CN105332536B (en) | A kind of quick shifting apparatus of the intelligence of stereo garage | |
| CN204019079U (en) | A kind of dismountable production frame for processing automobile clutch release bearing | |
| CN204228534U (en) | The full-automatic hydrostatic testing machine of tubing | |
| CN209343407U (en) | A kind of parking garage entrances gate device | |
| CN201753598U (en) | Chain type twin-well energy-saving oil extractor | |
| CN208792846U (en) | A kind of traversing striking gear of mechanical type three-dimensional parking garage vehicle-carrying plate, parking systems | |
| CN201568041U (en) | Synchronous control system of injection head and winding drum of continuous string coiled tubing unit | |
| CN205189472U (en) | Stereo garage's intelligence is moved fast and is carried device | |
| CN201719024U (en) | Electric-hydraulic control curtain screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20170427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |