CN201530699U - Screw-type automatic lift equipment - Google Patents
Screw-type automatic lift equipment Download PDFInfo
- Publication number
- CN201530699U CN201530699U CN200920128955XU CN200920128955U CN201530699U CN 201530699 U CN201530699 U CN 201530699U CN 200920128955X U CN200920128955X U CN 200920128955XU CN 200920128955 U CN200920128955 U CN 200920128955U CN 201530699 U CN201530699 U CN 201530699U
- Authority
- CN
- China
- Prior art keywords
- tube coupling
- screw mandrel
- clutch
- screw
- pipe box
- 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 - Lifetime
Links
Images
Abstract
The utility model discloses the screw-type automatic lift equipment which comprises a pipe section component, a driving device and a control system, wherein the pipe section component comprises a first-level pipe section, n middle pipe sections and a last-level pipe section which are sleeved sequentially in a reciprocating sliding manner from the outside in; n is equal to or larger than zero; the driving device comprises a driving motor and a screw transmission mechanism; a power takeoff shaft of the driving motor is in transmission fit with a screw of the screw transmission mechanism; the screw is arranged at the axle center of the sections along the axis; nuts capable of being matched with the screw are fixedly arranged at the bottom ends of the middle pipe sections and the last-level pipe section; the length of the thread section of the screw is larger than the upstroke of single section; and the control system is connected between a motor power supply and the driving motor. Since the screw-type automatic lift equipment adopts the screw driven by the motor to drive and adopts a controller to control, the screw-type automatic lift equipment has the advantages of high automation degree, stable rising and falling, small noise, high reliability and long service life.
Description
Technical field
The utility model relates to a kind of jacking equipment, particularly a kind of screw mandrel formula automatic lifting device.
Background technology
Because simple in structure, operation is simple and reliable and be widely used on the jacking equipment in fields such as daily life, communication, fire-fighting by joint reduction formula structure.Comprise the tube coupling assembly by joint reduction formula structure, the tube coupling assembly comprises from outside to inside successively with the chopped-off head tube coupling of mode socket sliding back and forth, middle tube coupling and final stage tube coupling, different according to the difference of environment for use and rise height, described in the middle of tube coupling can be n, 0≤n; Go up sliding stretching out gradually by the drive mechanism tube coupling during use, be used for equipment lifting the need lifting.
The lifting rod structure of prior art can satisfy the demand of elevating function substantially, and still, existing jacking equipment degree of automation is low, and lifting is not steady, and noise is big, poor reliability, and the life-span is short, and under harsies environment such as sand and dust, fault is especially frequent.
Therefore, need a kind of jacking equipment, the degree of automation height, it is steady to have a lifting, and noise is little, the reliability height, the life-span is long.
The utility model content
In view of this, the purpose of this utility model provides a kind of screw mandrel formula automatic lifting device, the degree of automation height, and it is steady to have a lifting, and noise is little, the reliability height, the life-span is long.
Screw mandrel formula automatic lifting device of the present utility model, comprise the tube coupling assembly, described tube coupling assembly comprises from outside to inside successively the chopped-off head tube coupling with mode socket sliding back and forth, middle tube coupling and final stage tube coupling, tube coupling is n in the middle of described, 0≤n, also comprise actuating device and control system, described actuating device comprises drive motor and lead screw transmission mechanism, the power take-off shaft of described drive motor cooperates with the screw mandrel transmission of lead screw transmission mechanism, described screw mandrel is arranged on the tube coupling center along axis, in the middle of described tube coupling and the equal heavy keying fit setting in final stage tube coupling bottom can with the screw mandrel nut engaged, the thread segment length of described screw mandrel is greater than the upward stroke of single tube coupling; Described control system is connected between motor power and the drive motor.
Further, slipper seal between the bearing fit surface and the external world between the adjacent tube coupling;
Further, described chopped-off head tube coupling and middle tube coupling are extended longitudinally at inside face by the top and fixedly install locating bush, described nut is by heavy keying fit between slide and the tube coupling, and described slide cross sectional dimensions is smaller or equal to the tube coupling upper end locating bush inside face cross sectional dimensions that overlaps in it;
Further, the top of tube coupling and chopped-off head tube coupling all fixedly installs pipe box in the middle of described, described pipe box is provided with arrangement of clutch and latching device, described arrangement of clutch comprises in the mode that can radially reciprocatingly slide and is arranged on on-of pin on the pipe box, middle tube coupling and the tube wall setting of final stage tube coupling bottom and on-of pin circumferential locations over against and can supply its clutch hole that penetrates;
Described on-of pin is provided with the clutch pull back spring, and described clutch pull back spring one end withstands the on-of pin outer end, and the other end is fixed with respect to pipe box; Described arrangement of clutch also comprises the clutch drive block, described clutch drive block vertically is provided with, described on-of pin cooperates by the inclined-plane along tube coupling edge type strainer structure radially with the clutch drive block, and the driving direction of described edge type strainer is opposite with clutch pull back spring pressure direction; Described clutch drive block upper end edge pipe box radially have a longitudinal slot, the both sides of longitudinal slot form the inclined-plane of an edge type strainer structure respectively, the longitudinal slot bottom land is provided with the clutch operating spring; Described clutch drive block extends the pipe box lower surface in the bottom under the effect of clutch operating spring;
Described latching device comprises locking pin and latch segment, described locking pin is arranged on the pipe box in the mode that can radially reciprocatingly slide, latch segment longitudinally is fixedly installed on the lower sleeve adjacent with locking pin, middle tube coupling and final stage tube coupling bottom cylindrical are provided with the release boss, outer inclined downward is arrived in serving as reasons in described release boss upper end, the locking boss also is set on the locking pin, described latch segment setting can chimeric locking boss locking slot, the open slot that described latch segment setting makes progress, described locking pin medial end radially passes open slot and passes tube coupling wall with the pipe box heavy keying fit along pipe box; Described locking pin is provided with locking spring, and described locking spring one end withstands the locking pin outer end, and the relative pipe box of the other end is fixed;
Further, described chopped-off head tube coupling and middle tube coupling top fixedly install the back seal circle, back seal circle and the tube coupling outside face sealing contact that is placed in it;
Further, described slide cylindrical and be placed between its outer tube coupling inside face cushion blocking is set, described cushion blocking is fixedly installed on the slide cylindrical;
Further, described slide is provided with the nut knock hole along axis, and nut knock hole upper end forms radially inside circular orientation boss, cooperates with the mode single degree of freedom that can slide vertically between nut and the slide, between nut lower end and the slide damping spring is set, the circular orientation boss is withstood in the upper end;
Further, cooperate by chain-driving or strap drive transmission between the screw mandrel of described drive motor and lead screw transmission mechanism;
Further, the screw mandrel power intake of described lead screw transmission mechanism also transmission is equipped with the finishing bevel gear cuter Meshing Pair, and described finishing bevel gear cuter Meshing Pair is provided with manual power input handle.
The beneficial effects of the utility model: screw mandrel formula automatic lifting device of the present utility model, adopt motor-driven screw mandrel to drive, and adopt controller to control, the degree of automation height makes the jacking equipment lifting steady, and noise is little, the reliability height, the life-span is long.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model transmission device structural representation.
Fig. 3 is the utility model auto lock and arrangement of clutch structural representation.
The specific embodiment
Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the utility model transmission device structural representation, and Fig. 3 is the utility model auto lock and arrangement of clutch structural representation; As shown in the figure: the screw mandrel formula automatic lifting device of present embodiment, comprise the tube coupling assembly, described tube coupling assembly comprises from outside to inside successively chopped-off head tube coupling 3, middle tube coupling 2 and the final stage tube coupling 1 with mode socket sliding back and forth, tube coupling is n in the middle of described, 0≤n, the middle tube coupling that adopts in the present embodiment is 3; Screw mandrel formula automatic lifting device also comprises actuating device and control system, described actuating device comprises drive motor 12 and lead screw transmission mechanism, the power take-off shaft of described drive motor 12 cooperates with 4 transmissions of the screw mandrel of lead screw transmission mechanism, described screw mandrel 4 is arranged on the tube coupling center along axis, in the middle of described tube coupling 2 and the equal heavy keying fit setting in final stage tube coupling 1 bottom can with screw mandrel 4 nut engaged 6, the thread segment length of described screw mandrel 4 is greater than the upward stroke of single tube coupling; Described control system is connected between motor power and the drive motor 4.
In the present embodiment, slipper seal between the bearing fit surface and the external world between the adjacent tube coupling; Can strengthen the comformability of mechanism, can under harsies environment such as sand and dust, use, guarantee that slides within is smooth and easy, reduce fault rate, increase the service life environment.
In the present embodiment, described chopped-off head tube coupling 3 and middle tube coupling 2 are extended longitudinally at inside face by the top and fixedly install locating bush 5, described nut 6 is by heavy keying fit between slide 11 and the tube coupling, and described slide 11 cross sectional dimensions are smaller or equal to the tube coupling upper end locating bush inside face cross sectional dimensions that overlaps in it; Realize accurate location radially, can improve adjacent tubes internode radial location precision in the use, promote the using property datas such as reliability, safety of jacking equipment largely, reduce the fault rate of jacking equipment.
In the present embodiment, the top of tube coupling 2 and chopped-off head tube coupling 3 all fixedly installs pipe box 24 (as shown in Figure 3 in the middle of described, present embodiment is described clutch of the present invention and latching device with the structure of triode joint), described pipe box 24 is provided with arrangement of clutch and latching device, described arrangement of clutch comprises in the mode that can radially reciprocatingly slide and is arranged on on-of pin 22 on the pipe box, middle tube coupling 2 and the 1 bottom tube wall setting of final stage tube coupling and on-of pin 22 circumferential locations over against and can supply its clutch hole that penetrates;
Described on-of pin 22 is provided with clutch pull back spring 23, and described clutch pull back spring 23 1 ends withstand on-of pin 22 outer ends, and the other end is fixing with respect to pipe box 24; Described arrangement of clutch also comprises clutch drive block 20, described clutch drive block 20 vertically is provided with along tube coupling, described on-of pin 22 cooperates by the inclined-plane along tube coupling edge type strainer structure radially with clutch drive block 20, and the driving direction of described edge type strainer is opposite with clutch pull back spring 23 pressure directions; Described clutch drive block 20 upper end edge pipe boxes radially have a longitudinal slot, the both sides of longitudinal slot form the inclined-plane of an edge type strainer structure respectively, the longitudinal slot bottom land is provided with clutch operating spring 21; Described clutch drive block 20 extends the pipe box lower surface in the bottom under 21 effects of clutch operating spring.
Described latching device comprises locking pin 16 and latch segment 18, described locking pin 16 is arranged on the pipe box 24 in the mode that can radially reciprocatingly slide, latch segment 17 longitudinally is fixedly installed on the lower sleeve 24 adjacent with locking pin 16, middle tube coupling 2 and final stage tube coupling 1 bottom cylindrical are provided with release boss 19, in serving as reasons, described release boss 19 upper ends arrive outer inclined downward, the locking boss also is set on the locking pin 16, described latch segment 18 be provided with can chimeric locking boss locking slot, described latch segment 18 is provided with open slot upwards, described locking pin 16 medial ends radially pass open slot and pass and the tube coupling wall of pipe box heavy keying fit (in the present embodiment, the tube wall of tube coupling 2 in the middle of passing) along pipe box 24; Described locking pin 16 is provided with locking spring 17, and described locking spring 17 1 ends withstand locking pin 16 outer ends, and the relative pipe box 24 of the other end is fixed.
The utility model in use, in the elevation process, final stage tube coupling 1 rise put in place after, the clutch drive block 20 of middle tube coupling 2 under the effect of clutch operating spring 21 to lower slider, the inclined-plane of edge type strainer structure breaks away from and cooperates, and then on-of pin 22 inwardly slides and stretches into the clutch hole 1a of final stage tube coupling 1; Simultaneously, release boss 19 drives locking pin 16 outer moving, and the locking boss is deviate from from locking slot, and then middle tube coupling 2 upwards slides, and realizes rising step by step.
In the present embodiment, described chopped-off head tube coupling 3 and middle tube coupling 2 tops fixedly install back seal circle 14, back seal circle 14 and the tube coupling outside face sealing contact that is placed in it; Seal Design is simple, easy accessibility, and sealing property is reliable.
In the present embodiment, described slide 11 cylindricals and be placed between its outer tube coupling inside face cushion blocking 8 is set, described cushion blocking 8 is fixedly installed on slide 11 cylindricals; In operating process, can reduce vibration, improve transmission stability, guarantee the safe and reliable operation of jacking equipment.
In the present embodiment, described slide 11 is provided with the nut knock hole along axis, nut knock hole upper end forms radially inside circular orientation boss 11a, cooperate with the mode single degree of freedom that can slide vertically between the bottom 15 of nut 6 and slide 11, between nut 6 lower ends and the slide 11 damping spring 7 is set, circular orientation boss 11a is withstood in the upper end; Can reduce the impact shock of lifting bar when rising or descend greatly, be beneficial to the assurance stability of structure;
In the present embodiment, cooperate by chain-driving or strap drive transmission between the screw mandrel 4 of described drive motor 12 and lead screw transmission mechanism, present embodiment adopts belt gear 13; Make actuating device and lifting mechanism relatively independent, be convenient to install, easy to maintenance, it is low to have a noise, the stable transmission advantage;
In the present embodiment, screw mandrel 4 power intakes of described lead screw transmission mechanism also transmission are equipped with finishing bevel gear cuter Meshing Pair 9, and described finishing bevel gear cuter Meshing Pair 9 is provided with manual power input handle 10; Flexible to operation, can realize M/C.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (9)
1. screw mandrel formula automatic lifting device, comprise the tube coupling assembly, described tube coupling assembly comprises from outside to inside successively the chopped-off head tube coupling with mode socket sliding back and forth, middle tube coupling and final stage tube coupling, tube coupling is n in the middle of described, n 〉=0, it is characterized in that: also comprise actuating device and control system, described actuating device comprises drive motor and lead screw transmission mechanism, the power take-off shaft of described drive motor cooperates with the screw mandrel transmission of lead screw transmission mechanism, described screw mandrel is arranged on the tube coupling axle center along axis, in the middle of described tube coupling and the equal heavy keying fit setting in final stage tube coupling bottom can with the screw mandrel nut engaged, the thread segment length of described screw mandrel is greater than the upward stroke of single tube coupling; Described control system is connected between motor power and the drive motor.
2. screw mandrel formula automatic lifting device according to claim 1 is characterized in that: slipper seal between the bearing fit surface and the external world between the adjacent tube coupling.
3. screw mandrel formula automatic lifting device according to claim 2, it is characterized in that: described chopped-off head tube coupling and middle tube coupling are extended longitudinally at inside face by the top and fixedly install locating bush, described nut is by heavy keying fit between slide and the tube coupling, and described slide cross sectional dimensions is smaller or equal to the tube coupling upper end locating bush inside face cross sectional dimensions that overlaps in it.
4. screw mandrel formula automatic lifting device according to claim 3, it is characterized in that: the top of tube coupling and chopped-off head tube coupling all fixedly installs pipe box in the middle of described, described pipe box is provided with arrangement of clutch and latching device, described arrangement of clutch comprises in the mode that can radially reciprocatingly slide and is arranged on on-of pin on the pipe box, middle tube coupling and the tube wall setting of final stage tube coupling bottom and on-of pin circumferential locations over against and can supply its clutch hole that penetrates;
Described on-of pin is provided with the clutch pull back spring, and described clutch pull back spring one end withstands the on-of pin outer end, and the other end is fixed with respect to pipe box; Described arrangement of clutch also comprises the clutch drive block, described clutch drive block vertically is provided with, described on-of pin cooperates by the inclined-plane along tube coupling edge type strainer structure radially with the clutch drive block, and the driving direction of described edge type strainer is opposite with clutch pull back spring pressure direction; Described clutch drive block upper end edge pipe box radially have a longitudinal slot, the both sides of longitudinal slot form the inclined-plane of an edge type strainer structure respectively, the longitudinal slot bottom land is provided with the clutch operating spring; Described clutch drive block extends the pipe box lower surface in the bottom under the effect of clutch operating spring;
Described latching device comprises locking pin and latch segment, described locking pin is arranged on the pipe box in the mode that can radially reciprocatingly slide, latch segment longitudinally is fixedly installed on the lower sleeve adjacent with locking pin, middle tube coupling and final stage tube coupling bottom cylindrical are provided with the release boss, outer inclined downward is arrived in serving as reasons in described release boss upper end, the locking boss also is set on the locking pin, described latch segment setting can chimeric locking boss locking slot, the open slot that described latch segment setting makes progress, described locking pin medial end radially passes open slot and passes tube coupling wall with the pipe box heavy keying fit along pipe box; Described locking pin is provided with locking spring, and described locking spring one end withstands the locking pin outer end, and the relative pipe box of the other end is fixed.
5. screw mandrel formula automatic lifting device according to claim 4 is characterized in that: described chopped-off head tube coupling and middle tube coupling top fixedly install the back seal circle, back seal circle and the tube coupling outside face sealing contact that is placed in it.
6. screw mandrel formula automatic lifting device according to claim 5 is characterized in that: described slide cylindrical and be placed between its outer tube coupling inside face cushion blocking is set, described cushion blocking is fixedly installed on the slide cylindrical.
7. screw mandrel formula automatic lifting device according to claim 6, it is characterized in that: described slide is provided with the nut knock hole along axis, nut knock hole upper end forms radially inside circular orientation boss, cooperate with the mode single degree of freedom that can slide vertically between nut and the slide, between nut lower end and the slide damping spring is set, the circular orientation boss is withstood in the upper end.
8. according to the described screw mandrel formula of the arbitrary claim of claim 1 to 7 automatic lifting device, it is characterized in that: cooperate by chain-driving or strap drive transmission between the screw mandrel of described drive motor and lead screw transmission mechanism.
9. screw mandrel formula automatic lifting device according to claim 8 is characterized in that: the screw mandrel power intake of described lead screw transmission mechanism also transmission is equipped with the finishing bevel gear cuter Meshing Pair, and described finishing bevel gear cuter Meshing Pair is provided with manual power input handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920128955XU CN201530699U (en) | 2009-09-22 | 2009-09-22 | Screw-type automatic lift equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920128955XU CN201530699U (en) | 2009-09-22 | 2009-09-22 | Screw-type automatic lift equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201530699U true CN201530699U (en) | 2010-07-21 |
Family
ID=42526104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920128955XU Expired - Lifetime CN201530699U (en) | 2009-09-22 | 2009-09-22 | Screw-type automatic lift equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201530699U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001601A (en) * | 2010-09-05 | 2011-04-06 | 崔鲁彬 | Electric spiral lifting rod |
| CN102491217A (en) * | 2011-12-12 | 2012-06-13 | 中国科学院长春光学精密机械与物理研究所 | Ball screw and sliding screw mutually nested type synchronous lifting photoelectric mast |
| CN103072921A (en) * | 2013-01-25 | 2013-05-01 | 潍坊路加精工有限公司 | Cylinder-type automatic lifting device |
| CN105439031A (en) * | 2014-09-25 | 2016-03-30 | 余清琼 | Mechanical type automatic positioning lifting machine |
| CN108408645A (en) * | 2017-11-09 | 2018-08-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of multistage synchronous lifting device based on carbon fiber cylinder |
| CN109027158A (en) * | 2018-10-26 | 2018-12-18 | 海鹰企业集团有限责任公司 | A kind of flat-pushing rotating mechanism |
| CN109081258A (en) * | 2018-09-28 | 2018-12-25 | 武汉道森传动科技有限公司 | A kind of heavy-load type multiple coil lifting device |
| CN110469566A (en) * | 2019-09-11 | 2019-11-19 | 中国人民解放军第六九O五工厂 | Multifibres bar elevating lever section by section |
| CN111039221A (en) * | 2019-11-08 | 2020-04-21 | 合肥科大智能机器人技术有限公司 | Light lead screw lifting mechanism |
| TWI735341B (en) * | 2020-09-16 | 2021-08-01 | 國家中山科學研究院 | Rod fixing structure |
| CN113967899A (en) * | 2021-11-11 | 2022-01-25 | 崔鲁彬 | External screw lifting type section bar support |
| CN114391715A (en) * | 2021-12-24 | 2022-04-26 | 浙江乐歌智能驱动科技有限公司 | Feed screw nut mechanism |
-
2009
- 2009-09-22 CN CN200920128955XU patent/CN201530699U/en not_active Expired - Lifetime
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001601A (en) * | 2010-09-05 | 2011-04-06 | 崔鲁彬 | Electric spiral lifting rod |
| CN102001601B (en) * | 2010-09-05 | 2012-10-31 | 崔鲁彬 | Electric spiral lifting rod |
| CN102491217A (en) * | 2011-12-12 | 2012-06-13 | 中国科学院长春光学精密机械与物理研究所 | Ball screw and sliding screw mutually nested type synchronous lifting photoelectric mast |
| CN102491217B (en) * | 2011-12-12 | 2014-01-15 | 中国科学院长春光学精密机械与物理研究所 | Ball screw and sliding screw mutually nested type synchronous lifting photoelectric mast |
| CN103072921A (en) * | 2013-01-25 | 2013-05-01 | 潍坊路加精工有限公司 | Cylinder-type automatic lifting device |
| CN103072921B (en) * | 2013-01-25 | 2016-03-02 | 潍坊路加精工有限公司 | Cartridge type apparatus for automatically lifting |
| CN105439031A (en) * | 2014-09-25 | 2016-03-30 | 余清琼 | Mechanical type automatic positioning lifting machine |
| CN108408645B (en) * | 2017-11-09 | 2019-08-20 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of multistage synchronous lifting device based on carbon fiber cylinder |
| CN108408645A (en) * | 2017-11-09 | 2018-08-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of multistage synchronous lifting device based on carbon fiber cylinder |
| CN109081258A (en) * | 2018-09-28 | 2018-12-25 | 武汉道森传动科技有限公司 | A kind of heavy-load type multiple coil lifting device |
| CN109081258B (en) * | 2018-09-28 | 2024-02-09 | 武汉道森传动科技有限公司 | Heavy-duty type multistage spiral lifting device |
| CN109027158B (en) * | 2018-10-26 | 2023-06-20 | 海鹰企业集团有限责任公司 | Flat pushing rotary mechanism |
| CN109027158A (en) * | 2018-10-26 | 2018-12-18 | 海鹰企业集团有限责任公司 | A kind of flat-pushing rotating mechanism |
| CN110469566A (en) * | 2019-09-11 | 2019-11-19 | 中国人民解放军第六九O五工厂 | Multifibres bar elevating lever section by section |
| CN110469566B (en) * | 2019-09-11 | 2024-04-19 | 中国人民解放军第六九O五工厂 | Multi-screw rod section-by-section lifting rod |
| CN111039221A (en) * | 2019-11-08 | 2020-04-21 | 合肥科大智能机器人技术有限公司 | Light lead screw lifting mechanism |
| TWI735341B (en) * | 2020-09-16 | 2021-08-01 | 國家中山科學研究院 | Rod fixing structure |
| CN113967899A (en) * | 2021-11-11 | 2022-01-25 | 崔鲁彬 | External screw lifting type section bar support |
| CN113967899B (en) * | 2021-11-11 | 2022-12-09 | 崔鲁彬 | External screw lifting type section bar support |
| CN114391715B (en) * | 2021-12-24 | 2023-02-24 | 浙江乐歌智能驱动科技有限公司 | Feed screw nut mechanism |
| CN114391715A (en) * | 2021-12-24 | 2022-04-26 | 浙江乐歌智能驱动科技有限公司 | Feed screw nut mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201530699U (en) | Screw-type automatic lift equipment | |
| CN101016834B (en) | Straight line driving screw pump oil production system | |
| CN104235303B (en) | Operation gear-box | |
| CN201723423U (en) | Mechanical reversing reciprocating plunger pump of submersible motor | |
| CN2916190Y (en) | Multi-valve sand-prevention electro-submersible plunger pump | |
| CN106194070A (en) | There is the workover fluid pressing tongs of remote control | |
| CN201111546Y (en) | Combination type oil pumping machine | |
| CN204153089U (en) | A kind of operation gear-box | |
| CN103382928A (en) | Hydraulic manual pump | |
| CN209714527U (en) | A kind of aqueous vapor cylinder with Oil-gas Separation function | |
| CN113445969A (en) | Pumping unit capable of realizing intermittent pumping by utilizing non-whole-cycle motion of crank | |
| CN202594286U (en) | Pneumatic type automatic unhooking device | |
| CN102490036A (en) | Telescopic pin fast positioning device | |
| CN202039816U (en) | Bidirectional back pressure valve | |
| CN202560171U (en) | Linear-transmission pumping unit | |
| CN205370441U (en) | Reserve power device of truck -mounted drilling rig carousel | |
| CN201396113Y (en) | Circlip type sliding sleeve oil drain | |
| CN219859428U (en) | Automatic telescopic material taking mechanism for corrugated pipeline | |
| CN202300222U (en) | High-strength connecting-tripping device for small pumps | |
| CN219139958U (en) | Gas self-closing valve lifting mechanism and gas self-closing valve | |
| CN204200606U (en) | A kind of deep water pump | |
| CN220134163U (en) | Forced mechanical valve type air-proof pump with bridge crossing strengthening function | |
| CN110657090B (en) | Lifting device and method | |
| CN202926567U (en) | Radial magnetic drive defueling pump | |
| CN202108479U (en) | Reciprocating electric pump device for liquid collection in oil, gas and coal well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |