CN208603651U - Lifting device - Google Patents
Lifting device Download PDFInfo
- Publication number
- CN208603651U CN208603651U CN201821286841.3U CN201821286841U CN208603651U CN 208603651 U CN208603651 U CN 208603651U CN 201821286841 U CN201821286841 U CN 201821286841U CN 208603651 U CN208603651 U CN 208603651U
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- Prior art keywords
- plummer
- cylinder
- sliding block
- backing pin
- guide rail
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- 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.)
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Abstract
The utility model proposes lifting device, the lifting device includes: that cylinder is fixed on body frame, and guide rail is fixed on body frame；Sliding block is connected with cylinder；Rotary shaft passes through sliding block and is fixedly connected with plummer；First backing pin is fixed on guide rail, and the second backing pin is fixed on plummer；Sliding block can move up and down under the draw of cylinder and under the guiding role of guide rail along guide rail；Cylinder can be when reaching plummer wait go up and down article, sliding block is pulled up along guide rail, sliding block drives plummer to move up by rotary shaft, when the second backing pin is stopped by the first backing pin, as sliding block continues to move up, second backing pin drives rotary shaft to rotate, and article to be gone up and down is unloaded in plummer run-off the straight；Cylinder stops pulling up when shoe contact is to travel switch；Cylinder, when being resetted, band movable slider is moved down, and plummer is resetted.The lifting device of the utility model can automatically unload article to be gone up and down from lifting device.
Description
Technical field
The utility model relates to machinery fields, especially lifting device.
Background technique
Lifting device is applied in every field than wide.
Mainly in the vertical direction, article to be gone up and down is moved to separately from a position for the function of existing lifting device
One position, still, after mobile, article to be gone up and down needs other equipment or manually will be wait go up and down still on lifting device
Article is removed from lifting device.
As can be seen from the above description, existing lifting device can only realize the lifting of article to be gone up and down, mesh can not reached
Article to be gone up and down is unloaded from lifting device after cursor position.
Utility model content
In view of this, article to be gone up and down can be unloaded from lifting device automatically the utility model proposes lifting device
Under.
The utility model proposes lifting devices, comprising: body frame, sliding block, plummer, rotary shaft, guide rail, cylinder, first
Backing pin, the second backing pin and travel switch；
Wherein, the cylinder is fixed on the body frame, and the guide rail is fixed on the body frame；
The sliding block is connected with the cylinder；
The rotary shaft passes through the sliding block and is fixedly connected with the plummer；
First backing pin is fixed on the guide rail, and second backing pin is fixed on the plummer；
The sliding block can be led under the draw of the cylinder and under the guiding role of the guide rail along described
Rail moves up and down；
The cylinder can pull up the sliding block along the guide rail when reaching the plummer wait go up and down article
Dynamic, the sliding block drives the plummer to move up by the rotary shaft, when second backing pin is by first backing pin
When blocking, as the sliding block continues to move up, second backing pin drives the rotary shaft to rotate, the plummer
The article to be gone up and down is unloaded in run-off the straight；
The cylinder stops pulling up when the shoe contact is to the travel switch；
The cylinder drives the sliding block to move down when being resetted, and the plummer is resetted.
Preferably,
The lifting device further comprises: tension spring, third backing pin and fourth gear pin；
Wherein, one end of the tension spring is connected with the slide block, and the other end is connect with the plummer；
The third backing pin is fixed on the sliding block, and the fourth gear pin is fixed on the plummer；
The tension spring generates the pulling force for resetting the plummer in the plummer run-off the straight；
The plummer, under the action of the pulling force of the tension spring, the direction of Xiang Fuwei rotates, and the plummer drives institute
State the rotation of fourth gear pin；
The plummer, when the fourth gear pin joint contacts the third backing pin, under the blocking of the third backing pin,
It stops rotating, the plummer is completed to reset.
Preferably,
The guide rail includes: left rail and right rail；
Wherein, the left rail and the right rail are fixed on the body frame according to vertical direction；
The sliding block is clipped between the left rail and the right rail；
The distance between the left rail and described right rail are matched with the size of the sliding block, so that the cunning
Block can be moved along the guide rail.
Preferably,
First backing pin is arranged in the right rail；
Position of second backing pin on the plummer is matched with the position of first backing pin, so that when described
When plummer is moved up along the guide rail, second backing pin can be stopped by first backing pin.
Preferably,
Through-hole is provided on the sliding block；
The rotary shaft passes through the through-hole and is fixedly connected with the plummer.
Preferably,
The cylinder barrel of the cylinder is fixed on the top of the body frame；
The piston rod of the cylinder is fixedly connected with the sliding block；
The piston rod of the cylinder drives the sliding block to move down when the cylinder is resetted, and reaches the gas
Stop moving down when the range of cylinder.
Preferably,
The lifting device further comprises: cylinder controller；
Wherein, the cylinder controller is connected with the cylinder, the travel switch respectively；
The cylinder controller, it is described when going up and down the signal that article has exported receiving, wait the first preset duration
Afterwards, it controls the cylinder and pulls up the sliding block along the guide rail；
The cylinder controller controls the cylinder and stops movement when the shoe contact is to the travel switch, etc.
After the second preset duration, controls the cylinder and resetted.
It can be seen that in the lifting device of the utility model from above scheme, cylinder reaches in article to be gone up and down to be held
When microscope carrier, sliding block is pulled up, plummer is driven to move up, the promotion for treating lifting article is realized, in the second backing pin quilt
When first backing pin stops, since sliding block continues to move up under the drive of cylinder, under the blocking of the first backing pin, with plummer
The rotary shaft being fixedly connected rotates, plummer run-off the straight, the article to be gone up and down on plummer under gravity from
It is unloaded on plummer, it is seen then that lifting device provided by the embodiment of the utility model can either realize mentioning for article to be gone up and down automatically
It rises, also can automatically unload article to be gone up and down from lifting device.
Detailed description of the invention
The preferred embodiment of the utility model will be described in detail by referring to accompanying drawing below, make the ordinary skill people of this field
Member becomes apparent from the above and other feature and advantage of the utility model, in attached drawing:
Fig. 1 is a kind of schematic diagram for lifting device that the utility model one embodiment provides；
Fig. 2 is the schematic diagram for another lifting device that the utility model one embodiment provides；
Fig. 3 is the schematic diagram for another lifting device that the utility model one embodiment provides；
Fig. 4 is the schematic diagram for another lifting device that the utility model one embodiment provides.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments, based on the implementation in the utility model
Example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all belongs to
In the range of the utility model protection.
As shown in Figure 1, the utility model one embodiment provides lifting device, comprising:
Body frame 1, sliding block 2, plummer 3, rotary shaft 4, guide rail 5, cylinder 6, the first backing pin 7, the second backing pin 8 and travel switch
9；
Wherein, the cylinder 6 is fixed on the body frame 1, and the guide rail 5 is fixed on the body frame 1；
The sliding block 2 is connected with the cylinder 6；
The rotary shaft 4 passes through the sliding block 2 and is fixedly connected with the plummer 3；
First backing pin 7 is fixed on the guide rail 5, and second backing pin 8 is fixed on the plummer 3；
The sliding block 2 can be along described under the draw of the cylinder 6 and under the guiding role of the guide rail 5
Guide rail 5 moves up and down；
The cylinder 6 can be when reaching the plummer 3 wait go up and down article, upwards along the guide rail 5 by the sliding block 2
It pulls, the sliding block 2 drives the plummer 3 to move up by the rotary shaft 4, when second backing pin 8 is by described the
When one backing pin 7 stops, as the sliding block 2 continues to move up, second backing pin 8 drives the rotary shaft 4 to rotate,
3 run-off the straight of plummer, the article to be gone up and down is unloaded；
The cylinder 6 stops pulling up when the sliding block 2 touches the travel switch 9；
The cylinder 6 drives the sliding block 2 to move down when being resetted, and the plummer 3 is resetted.
In the utility model embodiment, cylinder pulls up sliding block when reaching plummer wait go up and down article, drives
Plummer moves up, and the promotion for treating lifting article is realized, when the second backing pin is stopped by the first backing pin, since sliding block is in gas
It is continued to move up under the drive of cylinder, under the blocking of the first backing pin, the rotary shaft being fixedly connected with plummer is rotated, and is held
Microscope carrier run-off the straight, the article to be gone up and down on plummer are unloaded from plummer under gravity, it is seen then that the utility model
The lifting device that embodiment provides can either realize the promotion of article to be gone up and down automatically, also can be automatically by article to be gone up and down from liter
It is unloaded in drop equipment.
In addition, sliding block can touch travel switch as sliding block continues to move up, then, cylinder stopping is pulled up,
Sliding block stopping moves up.Firstly, the second backing pin is stopped by the first backing pin, then, sliding block continues to move up one end apart from it
Travel switch can be just touched afterwards.In this way, just can guarantee that plummer tilts certain angle.In order to guarantee that article to be gone up and down is suitable
It is unloaded on the slave plummer of benefit, the position of the first backing pin is matched with the position of travel switch, so that the inclined angle of plummer
It needs sufficiently large.
After article to be gone up and down is removed, cylinder starts to reset, and when cylinder resets, the piston rod of cylinder stretches out.Carrying
Platform is also restored to initial state by heeling condition.
In an embodiment of the utility model, as shown in Fig. 2, lifting device may further include: tension spring 10, third gear
Pin 11 and fourth gear pin 12；
Wherein, one end of the tension spring 10 is connect with the sliding block 2, and the other end is connect with the plummer 3；
The third backing pin 11 is fixed on the sliding block 2, and the fourth gear pin 12 is fixed on the plummer 3；
The tension spring 10 generates the pulling force for resetting the plummer 3 in 3 run-off the straight of plummer；
The plummer 3, under the action of the pulling force of the tension spring 10, the direction of Xiang Fuwei rotates, 3 band of plummer
The fourth gear pin 12 is moved to rotate；
The plummer 3, when the fourth gear pin 12 touches the third backing pin 11, in the third backing pin 11
It under blocking, stops rotating, the plummer 3 is completed to reset.
In the utility model embodiment, when plummer run-off the straight, tension spring generation is the pulling force that plummer resets,
In the case that second backing pin is stopped by the first backing pin, plummer still maintains inclined state.Cylinder is resetted, band movable slider
It moving down, the second backing pin is no longer stopped by the first backing pin, and at this moment, tension spring pulls plummer to rotate to the direction of reset, in order to
Avoiding the plummer under the pulling of tension spring is more than the position needed to be reset, is provided with third backing pin and fourth gear pin, works as third
When backing pin touches fourth gear pin, plummer reaches exactly to the position to be reset to, and the pulling force of tension spring can not make plummer
Position changes.
Wherein, the position of plummer to be reset to can be horizontal position, that is to say, that when third gear pin joint contacts
When four backing pins, plummer reaches exactly to want horizontal position.
In the utility model embodiment, one end connection sliding block of tension spring, the other end connects plummer.Plummer and sliding block
Between have certain gap, tension spring can connect the back side of plummer, and tension spring is located in the gap.It can also be sliding block setting one
The component of a stretching, the component of the stretching is for connecting tension spring.
In an embodiment of the utility model, the guide rail 5 includes: left rail and right rail；
Wherein, the left rail and the right rail are fixed on the body frame 1 according to vertical direction；
The sliding block 2 is clipped between the left rail and the right rail；
The distance between the left rail and described right rail are matched with the size of the sliding block 2, so that described
Sliding block 2 can be moved along the guide rail 5.
In the utility model embodiment, the left and right sides of sliding block can be contacted with left rail and right rail respectively,
It can guarantee that sliding block can be moved in mobile process along guide rail in this way, and will not there is a situation where roll.
Here guide rail plays guiding role so that sliding block can only between left rail and right rail on move down
It is dynamic.
In an embodiment of the utility model, first backing pin 7 is arranged in the right rail；
Position of second backing pin 8 on the plummer 3 is matched with the position of first backing pin 7, so that working as
When the plummer 3 is moved up along the guide rail 5, second backing pin 8 can be stopped by first backing pin 7.
In the utility model embodiment, the first backing pin is arranged in right rail, and the second backing pin is also from the right side of plummer
Side is stretched out.So, it can be tilted to the right when plummer tilts.
Certainly, the first backing pin also can be set in left rail, and corresponding second backing pin is stretched out from the left side of plummer,
Plummer can tilt to the left when tilting.
In an embodiment of the utility model, through-hole is provided on the sliding block 2；
The rotary shaft 4 passes through the through-hole and is fixedly connected with the plummer 3.
In the utility model embodiment, rotary shaft passes through the through-hole on sliding block, in such manner, it is possible to guarantee that rotary shaft can be
Rotation in through-hole.Sliding block can also act on rotary shaft in through-holes when moving, drive rotary shaft mobile.
In an embodiment of the utility model, the cylinder barrel of the cylinder 6 is fixed on the top of the body frame 1；
The piston rod of the cylinder 6 is fixedly connected with the sliding block 2；
The piston rod of the cylinder 6 drives the sliding block 2 to move down when the cylinder 6 is resetted, and reaches institute
Stop moving down when stating the range of cylinder 6.
In the utility model embodiment, stops sliding block by way of reaching the range of cylinder and continue to moving down
It is dynamic.Sliding block can also be stopped to continue to move down by way of stop member, stop member can be set on body frame, work as sliding block
When touching stop member, under the blocking of stop member, sliding block stopping is moved down.
In an embodiment of the utility model, lifting device may further include: cylinder controller；
Wherein, the cylinder controller is connected with the cylinder 6, the travel switch 9 respectively；
The cylinder controller, it is described when going up and down the signal that article has exported receiving, wait the first preset duration
Afterwards, it controls the cylinder 6 and pulls up the sliding block 2 along the guide rail 5；
The cylinder controller controls the cylinder 6 and stops moving when the sliding block 2 touches the travel switch 9
It is dynamic, after waiting the second preset duration, controls the cylinder (6) and resetted.
In the utility model embodiment, wait the first preset duration because of having exported from receiving article to be gone up and down
Signal reaches plummer to article to be gone up and down and needs the regular hour, waits the first preset duration that can guarantee that article to be gone up and down arrives
Up to plummer.
Waiting the second preset duration is to wait second because article to be gone up and down unloads from plummer and needs the regular hour
Preset duration can guarantee that article to be gone up and down is unloaded from plummer completely.
As shown in figure 3, the schematic diagram of lifting device provided by the embodiment of the utility model.Lifting device is shown in figure
Side.As shown in figure 3, being provided with the component for connecting tension spring on sliding block, it is also provided on plummer and is drawn for connecting
The component of spring.
Travel switch and the second backing pin are not shown in Fig. 3.
Fig. 4 shows the schematic diagram when plummer run-off the straight of lifting device provided by the embodiment of the utility model.Such as
Shown in Fig. 4, under the blocking of the first backing pin, plummer is tilted.
In the utility model embodiment, travel switch be can be set on body frame, also can be set on guide rail.
In the utility model embodiment, plummer may include two parts, and a part is for carrying article to be gone up and down
Load bearing component, another part is for connection to the connecting component of rotary shaft.Wherein, the second backing pin, fourth gear pin can be set
It sets in connecting component, tension spring can be connected with connecting component.
Below by taking article to be gone up and down is aluminium cake as an example, lifting device provided by the embodiment of the utility model is described in detail
The course of work:
(die casting machine for producing cast-aluminum rotor can export aluminium cake to die casting machine when generating cast-aluminum rotor, and aluminium cake is
Produce the waste material generated during cast-aluminum rotor) signal that aluminium cake has exported is sent to cylinder controller, cylinder controller waits
(the first preset duration can be 9 seconds, 10,11 seconds, 12 seconds etc., specifically, can be according to aluminium cake from die casting after first preset duration
Machine is output to the time required for reaching plummer to determine), cylinder controller control cylinder pulls up sliding block along guide rail
It is dynamic, wherein to wait in first preset duration this period, aluminium cake is slipped on plummer from the raceway of die casting machine；
Sliding block drives plummer to move up by rotary shaft, when the second backing pin is stopped by the first backing pin, with sliding block
It continues to move up, the second backing pin drives rotary shaft to rotate, plummer run-off the straight, due to gravity, on plummer
Aluminium cake from plummer to downslide；
Sliding block continues to move up under the pulling of cylinder, when shoe contact is to travel switch, cylinder controller control
Cylinder stops movement, and it is constant that sliding block and plummer save current location, and (the second preset duration can be with after waiting the second preset duration
It is 7 seconds, 8 seconds, 9 seconds, 10 seconds etc., specifically, the time required for being slid from plummer according to aluminium cake determines), gas
Cylinder controller control cylinder is resetted, and the piston rod that cylinder controller controls cylinder stretches out, and band movable slider and plummer are downward
It is mobile, wherein to wait in second preset duration this period, aluminium cake slides from plummer；Furthermore it is possible to be arranged for receiving
Collect the material frame of aluminium cake, when aluminium cake slides from plummer, aluminium cake is fallen into material frame, realizes the automatic collection to aluminium cake；
Plummer is pulled to rotate to the direction of reset in the pulling force of the process that sliding block and plummer move down, tension spring, when
When fourth gear pin joint contacts third gear pin, under the blocking of third backing pin, plummer stops rotating, and plummer is completed to reset and (be held
The microscope carrier position to be resetted can be horizontal position), the reset of plummer can facilitate aluminium cake accurately to fall on plummer.
It, can by the cooperation of lifting device and the material frame for collecting article to be gone up and down in the utility model embodiment
To realize the automatic collection for treating lifting article, whole process without human intervention, saves manpower.
When going up and down article is aluminium cake, since the aluminium cake just produced has certain temperature, pass through the utility model reality
The lifting device for applying example offer can collect aluminium cake automatically, without human intervention, can be avoided aluminium cake scald.
To sum up, various embodiments of the utility model provide lifting device at least have it is following the utility model has the advantages that
1, in lifting device provided by the embodiment of the utility model, cylinder, will when reaching plummer wait go up and down article
Sliding block pulls up, and plummer is driven to move up, and realizes the promotion for treating lifting article, is hindered in the second backing pin by the first backing pin
When gear, since sliding block continues to move up under the drive of cylinder, under the blocking of the first backing pin, it is fixedly connected with plummer
Rotary shaft rotates, plummer run-off the straight, and the article to be gone up and down on plummer is unloaded from plummer under gravity
Under, it is seen then that lifting device provided by the embodiment of the utility model can either realize the promotion of article to be gone up and down automatically, also can be certainly
It is dynamic to unload article to be gone up and down from lifting device.
2, in lifting device provided by the embodiment of the utility model, by lifting device and for collecting article to be gone up and down
Material frame cooperation, may be implemented to treat the automatic collection of lifting article, whole process without human intervention, saves manpower.
3, it in lifting device provided by the embodiment of the utility model, using cylinder as power, is resetted, is led to by tension spring
Crossing simple structure can be realized elevating function.
It should be noted that, in this document, such as first and second etc relational terms are used merely to an entity
Or operation is distinguished with another entity or operation, is existed without necessarily requiring or implying between these entities or operation
Any actual relationship or order.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-
It is exclusive to include, so that the process, method, article or equipment for including a series of elements not only includes those elements,
It but also including other elements that are not explicitly listed, or further include solid by this process, method, article or equipment
Some elements.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including
There is also other identical factors in the process, method, article or equipment of the element.
Finally, it should be noted that the above is only the preferred embodiment of the present invention, it is merely to illustrate practical
Novel technical solution, is not intended to limit the protection scope of the utility model.It is all the spirit and principles of the utility model it
Interior done any modification, equivalent substitution, improvement and etc., are all contained in the protection scope of the utility model.
Claims (7)
1. lifting device characterized by comprising body frame (1), sliding block (2), plummer (3), rotary shaft (4), guide rail (5), gas
Cylinder (6), the first backing pin (7), the second backing pin (8) and travel switch (9)；
Wherein, the cylinder (6) is fixed on the body frame (1), and the guide rail (5) is fixed on the body frame (1)；
The sliding block (2) is connected with the cylinder (6)；
The rotary shaft (4) passes through the sliding block (2) and is fixedly connected with the plummer (3)；
First backing pin (7) is fixed on the guide rail (5), and second backing pin (8) is fixed on the plummer (3)；
The sliding block (2) can be along institute under the draw of the cylinder (6) and under the guiding role of the guide rail (5)
Guide rail (5) is stated to move up and down；
The cylinder (6) can be when reaching plummer (3) wait go up and down article, by the sliding block (2) along the guide rail (5)
It pulls up, the sliding block (2) drives the plummer (3) to move up by the rotary shaft (4), when second backing pin
(8) when being stopped by first backing pin (7), as the sliding block (2) continues to move up, second backing pin (8) drives institute
It states rotary shaft (4) to rotate, the article to be gone up and down is unloaded in plummer (3) run-off the straight；
The cylinder (6) stops pulling up when the sliding block (2) touches the travel switch (9)；
The cylinder (6) drives the sliding block (2) to move down when being resetted, and the plummer (3) is resetted.
2. lifting device according to claim 1, which is characterized in that further comprise: tension spring (10), third backing pin (11)
With fourth gear pin (12)；
Wherein, one end of the tension spring (10) is connect with the sliding block (2), and the other end is connect with the plummer (3)；
The third backing pin (11) is fixed on the sliding block (2), and the fourth gear pin (12) is fixed on the plummer (3)
On；
The tension spring (10) generates the pulling force for resetting the plummer (3) in the plummer (3) run-off the straight；
The plummer (3), under the action of the pulling force of the tension spring (10), the direction of Xiang Fuwei rotates, the plummer (3)
The fourth gear pin (12) is driven to rotate；
The plummer (3), when the fourth gear pin (12) touches third backing pin (11), in the third backing pin
(11) it under blocking, stops rotating, the plummer (3) completes to reset.
3. lifting device according to claim 1, which is characterized in that
The guide rail (5) includes: left rail and right rail；
Wherein, the left rail and the right rail are fixed on the body frame (1) according to vertical direction；
The sliding block (2) is clipped between the left rail and the right rail；
The distance between the left rail and described right rail are matched with the size of the sliding block (2), so that the cunning
Block (2) can be mobile along the guide rail (5).
4. lifting device according to claim 3, which is characterized in that
First backing pin (7) is arranged in the right rail；
Position of second backing pin (8) on the plummer (3) is matched with the position of first backing pin (7), so that
When the plummer (3) is moved up along the guide rail (5), second backing pin (8) can be by first backing pin (7)
Stop.
5. lifting device according to claim 1, which is characterized in that
Through-hole is provided on the sliding block (2)；
The rotary shaft (4) passes through the through-hole and is fixedly connected with the plummer (3).
6. lifting device according to claim 1, which is characterized in that
The cylinder barrel of the cylinder (6) is fixed on the top of the body frame (1)；
The piston rod of the cylinder (6) is fixedly connected with the sliding block (2)；
The piston rod of the cylinder (6) drives the sliding block (2) to move down when the cylinder (6) is resetted, and reaches
Stop moving down when the range of the cylinder (6).
7. any lifting device in -6 according to claim 1, which is characterized in that
Further comprise: cylinder controller；
Wherein, the cylinder controller is connected with the cylinder (6), the travel switch (9) respectively；
The cylinder controller, it is described when going up and down the signal that article has exported receiving, after waiting the first preset duration, control
It makes the cylinder (6) and pulls up the sliding block (2) along the guide rail (5)；
The cylinder controller controls the cylinder (6) and stops moving when the sliding block (2) touches the travel switch (9)
It is dynamic, after waiting the second preset duration, controls the cylinder (6) and resetted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821286841.3U CN208603651U (en) | 2018-08-09 | 2018-08-09 | Lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821286841.3U CN208603651U (en) | 2018-08-09 | 2018-08-09 | Lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208603651U true CN208603651U (en) | 2019-03-15 |
Family
ID=65679184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821286841.3U Active CN208603651U (en) | 2018-08-09 | 2018-08-09 | Lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208603651U (en) |
-
2018
- 2018-08-09 CN CN201821286841.3U patent/CN208603651U/en active Active
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