CN208898436U - A kind of handling movable hydraulic hoistable platform - Google Patents
A kind of handling movable hydraulic hoistable platform Download PDFInfo
- Publication number
- CN208898436U CN208898436U CN201821598740.XU CN201821598740U CN208898436U CN 208898436 U CN208898436 U CN 208898436U CN 201821598740 U CN201821598740 U CN 201821598740U CN 208898436 U CN208898436 U CN 208898436U
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- Prior art keywords
- hydraulic
- fixedly connected
- pedestal
- hoistable platform
- handling movable
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Abstract
The utility model relates to load and unload equipment technology field, and disclose a kind of handling movable hydraulic hoistable platform, including pedestal, swivel becket is fixedly connected at left and right sides of the base bottom, the inner rotation of the swivel becket is connected with rotating bar, and the rear and front end of the rotating bar is fixedly connected to rotating wheel.Handling movable hydraulic hoistable platform, it can control the hydraulic tube of side by flow-stop valve and hydraulic cavity block, so that the hydraulic oil in hydraulic cavity is fully injected into another hydraulic tube, so that the lifting piston and catch bar in this hydraulic tube rise, the angle of adjustable loading plate, enable the cargo on loading plate as inclined loading plate slides, unloading work is more efficiently carried out, directly power is provided for entire hydraulic elevating platform using alternating current, it is mobile flexible that traditional equipment is remained in this way, feature easy to adjust, also it can guarantee the reliability of work, it ensure that the efficiency of loading and unloading.
Description
Technical field
The utility model relates to load and unload equipment technology field, specially a kind of handling movable hydraulic hoistable platform.
Background technique
Hydraulic is a noun of machinery industry, electromechanical industries.It is hydraulic to use power transmission mode, become hydraulic biography
It is dynamic.The hydraulic control mode that also is used as is known as hydraulic control.Hydraulic drive is to utilize the pressure of liquid using liquid as working media
Power can transmit power.Hydraulic control is to there is the control of pressure fluid as control signal transfer mode.With hydraulic technique structure
At control system be known as hydraulic control system.Hydraulic control generally includes hydraulic opened loop control and hydraulic closed-loop control.It is hydraulic
Closed-loop control i.e. hydraulic servocontrol, it constitutes Hydrauservo System, it is (electro-hydraulic to watch to generally include electric hydraulic servo-system
Dress system) and machinery Hydraulic Servo system (mechanical hydraulic servo system or Hydraulic Servo-mechanism) etc..
With gradualling mature for hydraulic technique, now many fields can use hydraulic device, especially to some
It when cargo is carried, needs to use movable hydraulic hoistable platform, needs to be moved to when mobile lifting platform is due to using
Suitable loading position works again, therefore the power of hydraulic lifting, is generally all driven using the direct current generator that storage battery is powered
Hydraulic pump provides.It, can be because storage battery electricity have been consumed and can not have been worked when the volume of goods loaded and unloaded is big.There are also charging link, storage battery damages etc.
Operation and apparatus factor, cause task to be unable to complete successfully, seriously affect the efficiency of loading and unloading and time of delivery, and existing
Mobile lifting platform is more troublesome the handling of cargo when carrying to cargo, use it is very inconvenient, sternly
Ghost image rings the handling efficiency of cargo.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of handling movable hydraulic hoistable platform, and having can
It is higher by property, and can more convenient the advantages that cargo is loaded and unloaded, solving the work of existing hydraulic elevating platform can
It is poor by property, the problem very troublesome of the carrying to cargo.
(2) technical solution
To realize that above-mentioned reliability is higher, and can more convenient purpose that cargo is loaded and unloaded, the utility model
Provide the following technical solutions: a kind of handling movable hydraulic hoistable platform, including pedestal, the left and right sides of the base bottom are equal
It is fixedly connected with swivel becket, the inner rotation of the swivel becket is connected with rotating bar, and the rear and front end of the rotating bar is fixed
It is connected with rotating wheel.
The outside of one of them rotating bar is fixedly connected with driven gear, and the bottom of the pedestal is fixedly installed with dynamic
Force motor, the output shaft of the power motor are fixedly connected with driving gear, the driving gear by driving chain with it is driven
Gear drive connection.
Driving motor is fixedly connected at the top of the pedestal, the output shaft of the driving motor is fixedly connected with screw rod,
The external screw-thread of the screw rod is connected with the promotion pipe connecting with the top slide of pedestal, and the bottom for pushing pipe extends to base
It is fixedly connected at the top of the inside of seat and the promotion piston being slidably connected with the inner wall with pedestal.
The left and right sides at the top of the pedestal is fixedly connected to the hydraulic tube being connected to the inside of pedestal, the hydraulic tube
Bottom flow-stop valve is installed, the internal slide of the hydraulic tube is connected with lifting piston, and the top of the lifting piston is fixed
It is connected with the catch bar extended to outside hydraulic tube, the top of the catch bar is equipped with loading plate.
Preferably, the inside of the pedestal offers hydraulic cavity, and the promotion piston is located at the inside of hydraulic cavity simultaneously
Be slidably connected with the inner wall of hydraulic cavity, the left and right sides of the hydraulic cavity bottom offer be connected to hydraulic tube it is hydraulic
Channel.
Preferably, the left side at the top of the loading plate offers accommodating groove, and the front and rear sides cell wall of the accommodating groove is opened
Equipped with strip groove, the internal slide of the strip groove is connected with mobile bar, and the outside of the mobile bar is rotatably connected to baffle, institute
The bottom for stating baffle is fixedly connected with reset spring, and the bottom of the reset spring is fixedly connected with the bottom cell wall of accommodating groove.
Preferably, rope is fixedly connected on the right side of the baffle bottom, the right side cell wall of the accommodating groove offered
String holes, the right side of the loading plate are equipped with pulley, the right end of the rope through cable-through hole around pulley and with right side
Hydraulic tube is fixedly connected.
Preferably, the right side opening of the bottom bearing plate is equipped with shifting chute compatible with the catch bar on right side, described to push away
The inside of shifting chute is extended at the top of lever and is slidably connected with shifting chute.
Preferably, the top of the pedestal and be located at push pipe at left and right sides of be fixedly connected to limit plate, it is described to push away
The left and right sides of dynamic pipe offers limiting slot compatible with two limit plates respectively.
Preferably, the diameter of the driving gear is the one third of driven gear diameter.
Preferably, the bottom cell wall of the accommodating groove is oblique, and the left side of accommodating groove bottom cell wall is lower than receipts
Receive the right side of trench bottom cell wall.
Preferably, the voltage rating of the power motor and driving motor is 220 volts of alternating currents.
(3) beneficial effect
Compared with prior art, the utility model provides a kind of handling movable hydraulic hoistable platform, and having following has
Beneficial effect:
1, handling movable hydraulic hoistable platform drives the rotation of sliding tooth wheel by power motor, drives turning for gear
Dynamic to drive driven gear rotation by driving chain, it is entire liquid that the rotation of driven gear, which drives rotating bar and rotating wheel rotation,
The mobile offer auxiliary power of hoistable platform is pressed, so that the movement of entire hydraulic elevating platform is more laborsaving and efficient.
2, handling movable hydraulic hoistable platform drives screw rod rotation by driving motor, and the rotation of screw rod can band
Promotion pipe move up and down, push the movement of pipe to push and push piston mobile, the mobile control hydraulic oil of piston is pushed to be in base
Ratio in seat and hydraulic tube changes, and the height of adjustable catch bar changes, so that the height of loading plate is changed,
Structure is simple, and control is more convenient, and the lifting of control loading plate that can be simpler can preferably go up and down cargo
It carries.
3, handling movable hydraulic hoistable platform can control the hydraulic tube of side by flow-stop valve and hydraulic cavity hinder
It is disconnected, so that the hydraulic oil in hydraulic cavity is fully injected into another hydraulic tube, so that the lifting piston in this hydraulic tube
Rise with catch bar, the angle of adjustable loading plate, enable the cargo on loading plate as inclined loading plate slides,
Unloading work is more efficiently carried out.
4, handling movable hydraulic hoistable platform can be used for by the change of baffle angle in moving process
Cargo is protected, and avoids the cargo in moving process that from sliding from loading plate, can be during carrying to cargo more
Good protection cargo.
5, handling movable hydraulic hoistable platform is the power electric of 220 volts of alternating currents by selecting voltage rating
Machine and driving motor directly can provide power using alternating current for entire hydraulic elevating platform, remain traditional equipment shifting in this way
Dynamic flexible, easy to adjust feature, also can guarantee the reliability of work, ensure that the efficiency of loading and unloading.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of handling movable hydraulic hoistable platform structural schematic diagram；
Fig. 2 be the utility model proposes a kind of handling movable hydraulic hoistable platform Fig. 1 in the portion A enlarged drawing；
Fig. 3 be the utility model proposes a kind of handling movable hydraulic hoistable platform Fig. 1 in the portion B enlarged drawing；
Fig. 4 be the utility model proposes a kind of handling movable hydraulic hoistable platform Fig. 1 in the portion C enlarged drawing；
Fig. 5 be the utility model proposes a kind of handling movable hydraulic hoistable platform loading plate right end rise when structure
Schematic diagram.
In figure: 1 pedestal, 2 swivel beckets, 3 rotating bars, 4 rotating wheels, 5 driven gears, 6 power motors, 7 driving gears, 8 pass
Dynamic chain, 9 driving motors, 10 screw rods, 11 push pipe, 12 promotion pistons, 13 hydraulic tubes, 14 flow-stop valves, 15 lifting pistons, 16 to push away
Lever, 17 loading plates, 18 hydraulic cavitys, 19 hydraulic channels, 20 accommodating grooves, 21 strip grooves, 22 mobile bars, 23 baffles, 24 reset
Spring, 25 ropes, 26 cable-through holes, 27 pulleys, 28 shifting chutes, 29 limit plates, 30 limiting slots.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-5, a kind of handling movable hydraulic hoistable platform, including pedestal 1, the left and right sides of 1 bottom of pedestal
It is fixedly connected to swivel becket 2, the inner rotation of swivel becket 2 is connected with rotating bar 3, and the rear and front end of rotating bar 3 is fixed to be connected
It is connected to rotating wheel 4.
The outside of one of rotating bar 3 is fixedly connected with driven gear 5, and the bottom of pedestal 1 is fixedly installed with power electric
Machine 6, the output shaft of power motor 6 are fixedly connected with driving gear 7, and driving gear 7 is passed by driving chain 8 and driven gear 5
Dynamic connection, the diameter of driving gear 7 are the one third of 5 diameter of driven gear, driving gear 7 by driving chain 8 drive from
When moving gear 5 rotates, the effect of deceleration can be played to driven gear 5, avoids driven gear 5 from rotating too fast, can guarantee whole
A hydraulic elevating platform moves steady.
The top of pedestal 1 is fixedly connected with driving motor 9, and power motor 6 and the voltage rating of driving motor 9 are 200
20 volts of alternating currents directly can provide power using alternating current for entire hydraulic elevating platform, remain traditional equipment in this way
Mobile flexible, easy to adjust feature, also can guarantee the reliability of work, ensure that the efficiency of loading and unloading, driving motor 9
Output shaft is fixedly connected with screw rod 10, and the external screw-thread of screw rod 10 is connected with the promotion pipe 11 connecting with the top slide of pedestal 1,
The top of pedestal 1 and the left and right sides for being located at promotion pipe 11 are fixedly connected to limit plate 29, and the left and right sides of promotion pipe 11 is equal
Limiting slot 30 compatible with two limit plates 29 is offered respectively, driving motor 9 drives screw rod 10 to rotate in promotion pipe 11,
It pushes pipe 11 that can not rotate under the limitation of limit plate 29 and limiting slot 30, so that pushing pipe 11 that can only move up and down, pushes pipe
11 bottom extends to the inside of pedestal 1 and is fixedly connected with the top for the promotion piston 12 being slidably connected with the inner wall of pedestal 1.
The left and right sides at the top of pedestal 1 is fixedly connected to the hydraulic tube 13 being connected to the inside of pedestal 1, pedestal 1 it is interior
Portion offers hydraulic cavity 18, pushes piston 12 to be located at the inside of hydraulic cavity 18 and slide with the inner wall of hydraulic cavity 18 and connects
It connects, the left and right sides of hydraulic 18 bottom of cavity offers the hydraulic channel 19 being connected to hydraulic tube 13, pushes the movement of pipe 11
It pushes and piston 12 is pushed to decline in hydraulic cavity 18, the hydraulic oil in the hydraulic cavity 18 of lower general who has surrendered of piston 12 is pushed to be pushed into liquid
In pressure pipe 13, the bottom of hydraulic tube 13 is equipped with flow-stop valve 14, and the internal slide of hydraulic tube 13 is connected with lifting piston 15, lifting
The top of piston 15 is fixedly connected with the catch bar 16 extended to outside hydraulic tube 13, and the top of catch bar 16 is equipped with loading plate
17, the left side at 17 top of loading plate offers accommodating groove 20, and the front and rear sides cell wall of accommodating groove 20 offers strip groove 21, item
The internal slide of shape slot 21 is connected with mobile bar 22, and the outside of mobile bar 22 is rotatably connected to baffle 23, and the bottom of baffle 23 is solid
Surely it is connected with reset spring 24, the bottom of reset spring 24 is fixedly connected with the bottom cell wall of accommodating groove 20, and it is hydraulic to close left side
Flow-stop valve 14 on pipe 13, so that blocking between left side hydraulic tube 13 and hydraulic cavity 18, hydraulic oil only enters the hydraulic of right side
In pipe 13, pouring in for hydraulic oil pushes lifting piston 15 and catch bar 16 to rise, and the rising of right side catch bar 16 is so that loading plate
17 right end height rises, and the cargo on loading plate 17 is slid by self gravity, so that discharging is more efficient, gear
Rope 25 is fixedly connected on the right side of 23 bottom of plate, the right side cell wall of accommodating groove 20 offers cable-through hole 26, the right side of loading plate 17
Side is equipped with pulley 27, and the right end of rope 25 fixes company through cable-through hole 26 around pulley 27 and with the hydraulic tube on right side 13
It connects, the bottom cell wall of accommodating groove 20 is oblique, and the left side of 20 bottom cell wall of accommodating groove is lower than 20 bottom cell wall of accommodating groove
Right side, as 16 height of catch bar on right side is constantly promoted, loading plate 17 can pull rope 25, and rope 25 is in cable-through hole 26
Movement can pull the bottom of baffle 23 to slide in accommodating groove 20, and with the pulling of rope 25, baffle 23 can entirely be taken in
In accommodating groove 20, the right side opening of 17 bottom of loading plate is equipped with shifting chute 28 compatible with the catch bar 16 on right side, catch bar 16
Top extend to the inside of shifting chute 28 and be slidably connected with shifting chute 28, when the rising of 16 height of catch bar on right side, push away
The top of lever 16 guarantees the stabilization that right side catch bar 16 is connect with shifting chute 28 in the internal slide of shifting chute 28.
To sum up, the handling with movable hydraulic hoistable platform when in use, driving motor 9 is first connect city with power motor 6
Cargo can be loaded on loading plate 17 by electricity when loading plate 17 is in lower height, start power motor 6, power
Motor 6 drives driving gear 7 to rotate, and the rotation of driving gear 7 drives driven gear 5 to rotate by driving chain 8, driven gear
5 rotation drives rotating bar 3 and rotating wheel 4 to rotate, and provides auxiliary power for the movement of entire movable hydraulic hoistable platform, so that
The movement of entire hydraulic elevating platform is more laborsaving, drives screw rod 10 to rotate in promotion pipe 11 by the rotation of driving motor 9,
It pushes pipe 11 that can not rotate under the limitation of limit plate 29 and limiting slot 30, so that pushing pipe 11 that can only move up and down, pushes pipe
11 move down, which pushes, pushes piston 12 to decline in hydraulic cavity 18, and in hydraulic oil liquid pressure pipe 13, the promotion that pours in of hydraulic oil is risen
It drops piston 15 and catch bar 16 rises, the height of adjustable loading plate 17, height is promoted or reduced to cargo, and
Power directly can be provided for entire hydraulic elevating platform using alternating current, remain traditional equipment movement so flexibly, adjustment
Convenient feature also can guarantee the reliability of work, ensure that the efficiency of loading and unloading.
Also, the flow-stop valve 14 on the hydraulic tube 13 of left side is closed, so that hindering between left side hydraulic tube 13 and hydraulic cavity 18
Disconnected, hydraulic oil only enters in the hydraulic tube 13 on right side, and pouring in for hydraulic oil pushes lifting piston 15 and catch bar 16 to rise, right side
The rising of catch bar 16 allows the cargo on loading plate 17 to pass through self gravity so that the right end height of loading plate 17 rises
It slides, so that discharging is more efficient.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (9)
1. a kind of handling movable hydraulic hoistable platform, including pedestal (1), it is characterised in that: the left and right of pedestal (1) bottom
Two sides are fixedly connected to swivel becket (2), and the inner rotation of the swivel becket (2) is connected with rotating bar (3), the rotating bar
(3) rear and front end is fixedly connected to rotating wheel (4)；
The outside of one of them rotating bar (3) is fixedly connected with driven gear (5), the fixed peace in the bottom of the pedestal (1)
Equipped with power motor (6), the output shaft of the power motor (6) is fixedly connected with driving gear (7), the driving gear (7)
It is sequentially connected by driving chain (8) and driven gear (5)；
It is fixedly connected with driving motor (9) at the top of the pedestal (1), the output shaft of the driving motor (9) is fixedly connected with
Screw rod (10), the external screw-thread of the screw rod (10) is connected with the promotion pipe (11) connecting with the top slide of pedestal (1), described
The promotion piston (12) for pushing the bottom of pipe (11) to extend to the inside of pedestal (1) and be slidably connected with the inner wall with pedestal (1)
Top be fixedly connected；
The left and right sides at the top of the pedestal (1) is fixedly connected to the hydraulic tube (13) being connected to the inside of pedestal (1), described
The bottom of hydraulic tube (13) is equipped with flow-stop valve (14), and the internal slide of the hydraulic tube (13) is connected with lifting piston (15),
It is fixedly connected at the top of the lifting piston (15) and extends to the external catch bar (16) of hydraulic tube (13), the catch bar
(16) top is equipped with loading plate (17).
2. a kind of handling movable hydraulic hoistable platform according to claim 1, it is characterised in that: the pedestal (1)
Inside offers hydraulic cavity (18), it is described push piston (12) be located at hydraulic cavity (18) inside and with hydraulic cavity (18)
Inner wall be slidably connected, the left and right sides of hydraulic cavity (18) bottom offer be connected to hydraulic tube (13) it is hydraulic logical
Road (19).
3. a kind of handling movable hydraulic hoistable platform according to claim 1, it is characterised in that: the loading plate (17)
It is offered on the left of top accommodating groove (20), the front and rear sides cell wall of the accommodating groove (20) offers strip groove (21), institute
The internal slide for stating strip groove (21) is connected with mobile bar (22), and the outside of the mobile bar (22) is rotatably connected to baffle
(23), the bottom of the baffle (23) is fixedly connected with reset spring (24), the bottom of the reset spring (24) and accommodating groove
(20) bottom cell wall is fixedly connected.
4. a kind of handling movable hydraulic hoistable platform according to claim 3, it is characterised in that: baffle (23) bottom
It is fixedly connected on the right side of portion rope (25), the right side cell wall of the accommodating groove (20) offers cable-through hole (26), the carrying
The right side of plate (17) is equipped with pulley (27), the right end of the rope (25) through cable-through hole (26) around pulley (27) and with
The hydraulic tube (13) on right side is fixedly connected.
5. a kind of handling movable hydraulic hoistable platform according to claim 1, it is characterised in that: the loading plate (17)
The right side opening of bottom is equipped with the catch bar (16) on right side compatible shifting chute (28), and the top of the catch bar (16) extends
To shifting chute (28) inside and be slidably connected with shifting chute (28).
6. a kind of handling movable hydraulic hoistable platform according to claim 1, it is characterised in that: the pedestal (1)
Top and be located at push pipe (11) at left and right sides of be fixedly connected to limit plate (29), it is described push pipe (11) the left and right sides
The compatible limiting slot (30) with two limit plates (29) is offered respectively.
7. a kind of handling movable hydraulic hoistable platform according to claim 1, it is characterised in that: the driving gear
(7) diameter is the one third of driven gear (5) diameter.
8. a kind of handling movable hydraulic hoistable platform according to claim 3, it is characterised in that: the accommodating groove (20)
Bottom cell wall it is oblique, and the left side of the accommodating groove (20) bottom cell wall be lower than accommodating groove (20) bottom cell wall the right side
Side.
9. a kind of handling movable hydraulic hoistable platform according to claim 1, it is characterised in that: the power motor
It (6) is 220 volts of alternating currents with the voltage rating of driving motor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821598740.XU CN208898436U (en) | 2018-09-26 | 2018-09-26 | A kind of handling movable hydraulic hoistable platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821598740.XU CN208898436U (en) | 2018-09-26 | 2018-09-26 | A kind of handling movable hydraulic hoistable platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208898436U true CN208898436U (en) | 2019-05-24 |
Family
ID=66574302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821598740.XU Expired - Fee Related CN208898436U (en) | 2018-09-26 | 2018-09-26 | A kind of handling movable hydraulic hoistable platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208898436U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109319688A (en) * | 2018-09-26 | 2019-02-12 | 际华三五四二纺织有限公司 | A kind of handling movable hydraulic hoistable platform |
| CN110479652A (en) * | 2019-08-22 | 2019-11-22 | 王子炎 | A kind of express delivery sorting device |
| CN110667778A (en) * | 2019-08-26 | 2020-01-10 | 安庆船用电器有限责任公司 | Cargo lifting control system for ship |
| CN112845771A (en) * | 2021-01-09 | 2021-05-28 | 周在均 | Precision stamping die for sheet metal parts |
| CN113865765A (en) * | 2021-09-30 | 2021-12-31 | 重庆凯测试验设备有限责任公司 | Shaft coupling dynamometer convenient to heat dissipation |
-
2018
- 2018-09-26 CN CN201821598740.XU patent/CN208898436U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109319688A (en) * | 2018-09-26 | 2019-02-12 | 际华三五四二纺织有限公司 | A kind of handling movable hydraulic hoistable platform |
| CN110479652A (en) * | 2019-08-22 | 2019-11-22 | 王子炎 | A kind of express delivery sorting device |
| CN110667778A (en) * | 2019-08-26 | 2020-01-10 | 安庆船用电器有限责任公司 | Cargo lifting control system for ship |
| CN110667778B (en) * | 2019-08-26 | 2021-04-06 | 安庆船用电器有限责任公司 | Cargo lifting control system for ship |
| CN112845771A (en) * | 2021-01-09 | 2021-05-28 | 周在均 | Precision stamping die for sheet metal parts |
| CN113865765A (en) * | 2021-09-30 | 2021-12-31 | 重庆凯测试验设备有限责任公司 | Shaft coupling dynamometer convenient to heat dissipation |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 Termination date: 20190926 |
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| CF01 | Termination of patent right due to non-payment of annual fee |