CN208064033U - A kind of overlay film drag links - Google Patents
A kind of overlay film drag links Download PDFInfo
- Publication number
- CN208064033U CN208064033U CN201820525259.1U CN201820525259U CN208064033U CN 208064033 U CN208064033 U CN 208064033U CN 201820525259 U CN201820525259 U CN 201820525259U CN 208064033 U CN208064033 U CN 208064033U
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- CN
- China
- Prior art keywords
- earthing roller
- rack
- overlay film
- earthing
- soil
- 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.)
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Abstract
The utility model provides a kind of overlay film drag links, including：Rack, ground film rack, play mamoty, hold together soil wheel, earthing roller and pressing wheel, rack include frame front beam, play mamoty and the position in frame front beam both sides and the lower section positioned at frame front beam be set；Earthing roller is arranged at rack rear portion, and earthing roller is connect by connecting shaft with rack；Pressing wheel is arranged in earthing roller both sides and is connect with earthing roller, and the diameter of pressing wheel is more than the diameter of earthing roller；Hold together soil wheel setting in shell outside and corresponding with earthing roller；Ground film rack setting is rising between mamoty and the earthing roller and below rack.I.e. by the way that pressing wheel is arranged in earthing roller both sides, press mold is carried out after the both sides of mulch have been pressed into the groove that mamoty shovels out by the pressing wheel in overlay film again, the case where mulch both sides are not by soil fixing is avoided, the effect of overlay film is improved, keeps mulch fixedly more secured.
Description
Technical field
The utility model is related to agricultural machinery equipment field more particularly to a kind of overlay film drag links.
Background technology
Film coating technique is widely used in crops farming field, by carrying out overlay film to soil to ensure that crops obtain
Preference temperature needed for moisture appropriate and growth.In recent years, film coating technique is especially widely used in the plantation of dry land crop
In the process, become dry land crop drought resisting, soil moisture conservation, high yield important technical.With the development of science and technology, overlay film earthing
Machine starts to occur and manpower is replaced to carry out plastic film mulching.
The overlay film drag links of generally existing currently on the market are all to be covered to mulch by earthing roller with soil wheel cooperation is held together
Soil is fixed, but overlay film drag links in the prior art are by holding together soil when being taken turns to mulch both sides firming, since field is higher than it
The groove of both sides, and mulch is pressed on field, the two side portions of mulch cannot be well fixed on field both sides
In groove so that the both sides of mulch are frequently present of not by the part of soil gland, and mulch fails to be fixed carefully so that mulch passes through
It often falls off under the action of the forces of the wind, influences overlay film effect, to influence the growth of crop.So it is more preferable to provide a kind of overlay film effect
Overlay film drag links be Vehicles Collected from Market demand.
Utility model content
The main technical problems to be solved in the utility model is to provide a kind of overlay film drag links, to solve in the prior art
Overlay film drag links are when carrying out overlay film earthing, the problem of cannot fixing mulch well, influence overlay film earthing effect.
In order to solve the above technical problems, the utility model provides a kind of overlay film drag links, including：Rack, plays soil at ground film rack
It includes frame front beam to shovel, hold together soil wheel, earthing roller and pressing wheel, rack, plays mamoty setting in frame front beam both sides and is located at rack
The lower section of front-axle beam；Earthing roller is arranged at rack rear portion, and earthing roller is connect by connecting shaft with rack；Pressing wheel is arranged in earthing roller
It both sides and is connect with earthing roller, the diameter of pressing wheel is more than the diameter of earthing roller；Hold together soil wheel to be arranged in shell outside and and earthing
Roller corresponds to；Ground film rack setting is rising between mamoty and earthing roller and below rack.
Further, pressing wheel is circular ring structure or regular polygon ring structure.
Further, the press mold tooth for compressing mulch is additionally provided on pressing wheel.
Further, pressing wheel is detachably connected with earthing roller by pressing wheel connector.
Further, earthing roller by supporting rod component with connect axis connection.
Further, earthing roller is provided at both ends with native part, holds together native part and is inclined in earthing roller.
Further, earthing roller is tubular, and unearthed hole is provided on earthing roller.
Further, it is corresponding with the both ends open of earthing roller to hold together soil wheel, holds together between soil wheel and earthing roller to be formed and holds together Tu Kou, hold together
Tu Kou is towards rack direction of advance.
Further, be additionally provided with water sprayer on frame front beam, the water sprayering hole of water sprayer be located at mamoty and ground film rack it
Between.
Further, further include traction connector, traction connector is arranged on frame front beam, for connecting with dragger
It connects.
The utility model has the beneficial effects that：
The utility model provides a kind of overlay film drag links, including：Rack, ground film rack, rise mamoty, hold together soil wheel, earthing roller and
Pressing wheel plays mamoty and the position in frame front beam both sides is arranged and plays the lower section that mamoty is located at frame front beam, for being covered
It before film, slots to soil, field is formed, to facilitate carry out overlay film；This is provided with ground film rack after playing mamoty, and mulch passes through
The ground film rack is fixed, and during the overlay film drag links move, mulch is attached to by ground film rack paving on field.Setting exists
Soil wheel is held together for gathering to playing the soil that mamoty is opened in ground film rack rear, which is brought to the both sides of mulch with solid
Determine mulch；Further, hold together soil wheel to hold together part soil into earthing roller, by the part, soil is sprinkled upon earthing roller in rotation process
On mulch so that the fixation of mulch is more secured.Further, which can also be on the field and mulch after overlay film
Soil carry out suppression and it is smooth so that field is more smooth, but also mulch it is fixed more securely.Further, this practicality
Pressing wheel is arranged in earthing roller both sides in the overlay film drag links of novel offer, and the diameter of pressing wheel is more than the diameter of earthing roller, passes through
The both sides of mulch have been pressed into the groove that mamoty shovels out by the pressing wheel, are then held together soil to the mulch two by holding together soil wheel
Mulch is fixed in side, the case where so as to avoid mulch both sides not by soil fixing, improves the fixed effect of mulch；
Mulch can be uncovered from soil surface to avoid natural external forces such as wind-force cause soil cannot keep moisture appropriate and temperature from
And it influences the growth of crops, reduce the problem of crop yield.Overlay film drag links provided by the utility model, can be very good
Soil overlay film operation is carried out instead of manpower, to save a large amount of human and material resources, and overlay film earthing provided by the utility model
Machine overlay film effect is more preferable, and performance is more preferably.
Description of the drawings
Fig. 1 is the structural schematic diagram for the overlay film drag links that the utility model embodiment provides；
Fig. 2 is the right view of overlay film drag links shown in Fig. 1.
Reference numeral：
1：Rack；10：Frame front beam；11：Draw connector；2：Ground film rack；3：Play mamoty；4：Hold together native wheel；5：Earthing roller；
50：Supporting rod component；51：Connecting shaft；52：Unearthed hole；53：Hold together native part；6：Pressing wheel；61：Pressing wheel connector；7：Watering
Machine.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment 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.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "upper", "lower", "bottom", "inner"
Or position relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when usually put
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation in addition, term " first ", " second " etc. be only used for distinguish description, be not understood to indicate or imply relatively important
Property.
The utility model is described in further detail below by specific implementation mode combination attached drawing.
In order to solve the above technical problems, the present embodiment provides a kind of overlay film drag links, Fig. 1 and Fig. 2 are referred to, which covers
Native machine includes：Rack 1, ground film rack 2 play mamoty 3, hold together soil wheel 4, earthing roller 5 and pressing wheel 6.Specifically, rack 1 can be whole
It is set as rectangular frame, including frame front beam 10 and the frame side members positioned at 10 both sides of frame front beam；Rack 1 is mainly used for mulch
Frame 2, the installation and fixation for playing mamoty 3, holding together the functional components of other overlay film drag links such as soil wheel 4, earthing roller 5 and pressing wheel 6.Machine
The material selection hardness of frame 1 is higher and corrosion resistant japanning steel.
Further, rise mamoty 3 be arranged 10 both sides of frame front beam position and rise a mamoty 3 be located at frame front beam 10
Lower section shovels out groove in field both sides, facilitates carry out overlay film for loosening the soil to soil before carrying out overlay film；Play mamoty 3
Number be specially two, i.e., the both sides of frame front beam 10 respectively setting one, this two rise mamotys 3 size, shapes it is homogeneous
Together, and two rise mamotys 3 backwards to setting, to play the direction of soil be all outward to shoveling soil to 1 both sides of rack for it.Play mamoty 3
Rear is provided with ground film rack 2, which also is located at the lower section of rack 1, and mulch is fixed by the ground film rack 2, specially
It is sleeved on the ground film rack 2, mulch can be on the ground film rack 2 with the forward rotation of the overlay film drag links, so that mulch
It is attached on field by the paving of ground film rack 2, to realize overlay film；Relative position between the ground film rack 2 and rack 1 is adjustable, you can
After adjusting before ground film rack 2 is turned down or adjusted, the needs of to meet when different mulches or Land Environment.Specifically
, ground film rack 2 is by U-shaped connection sheet and fastening screw connection and 1 slidable connection of rack, and U-shaped connection sheet both sides are provided with
Multiple connecting holes can select the connecting hole of different height that ground film rack 2 is fixed on rack 1 by fastening screw as needed
On.
Further, earthing roller 5 is arranged at 1 rear portion of rack, is connected in rack 1 specifically by connecting shaft 51, earthing
5 both sides of roller are provided with pressing wheel 6, and pressing wheel 6 is detachably connected with earthing roller 5 by pressing wheel connector 61, outside frame side members
Side position corresponding with earthing roller 5 is provided with soil wheel 4, and after mulch is covered in by ground film rack 2 on field, pressing wheel 6 is by ground
The both sides indentation field both sides of film are risen in the groove that mamoty 3 shovels out, and are then held together the soil that 4 pairs mamotys 3 of soil wheel rise out and are gathered
Hold together, which is brought to the both sides of mulch to fix mulch.
Further, hold together soil wheel 4 to hold together part soil into earthing roller 5, earthing roller 5 is tubular, and is hollow structure, earthing
5 both sides of roller are provided with trepanning, and unearthed hole 52 is additionally provided on earthing roller 5, and earthing roller 5 can be rotated with connecting shaft 51, and are turning
The soil entered in earthing roller 5 during dynamic is sprinkled upon by hole 52 of being unearthed on mulch so that the fixation of mulch is more secured.
Specifically, the unearthed hole 52 in the present embodiment is specially to be set on earthing roller 5 close to intermediate position, specifically
Can be that one unearthed hole 52, or two or three holes 52 of being unearthed of interval setting are set along 5 side wall of earthing roller；Further
The shape on ground, hole 52 of being unearthed can be specifically rectangle, can also be circle etc., and the size in hole 52 of being unearthed can be according to earthing roller 5
Size setting, when the lateral area of earthing roller 5 is larger, the hole 52 of being unearthed can be arranged it is larger, when the side of earthing roller 5
When area is smaller, which can be arranged smaller；It preferably, can be at 5 side wall medium position interval of earthing roller
Two a length of 20cm are set, and width is the unearthed hole 52 of 10cm.Being unearthed the specific number in hole 52, shapes and sizes can be as needed
Specific setting.Overlay film drag links provided in this embodiment by pressing wheel 6 and can hold together the native cooperation for taking turns 4 and earthing roller 5, very
Good realization press mold avoids the natural external forces such as wind-force by mulch to complete the operation of overlay film earthing to the soil after overlay film
Being uncovered from soil surface causes soil that cannot keep moisture appropriate and temperature to influence the growth of crops.
Further, pressing wheel 6 is arranged in 5 both sides of earthing roller and is detachably connected by pressing wheel connector with earthing roller 5
It connects, the diameter of pressing wheel 6 is more than the diameter of earthing roller 5, and pressing wheel 6 can be specifically circular ring structure or regular polygon ring knot
Structure.Specifically, since field is higher than the groove of its both sides, for convenience the both sides of mulch are pressed by field two by pressing wheel 6
In the groove of side, the diameter of the pressing wheel 6 needs the diameter more than earthing roller 5, and the position of the pressing wheel 6 needs and groove
Position corresponds to, i.e., the position of the pressing wheel 6 is corresponding with the position of mamoty 3 is played, and the ditch that mamoty 3 shovels out is played to which mulch is pressed into this
In slot.It is rotated together with earthing roller 5 for convenience of the pressing wheel 6 simultaneously, which can be specifically cirque structure or just
Polygonized structure.
It further,, can be into one when the angle of the polygon and trench contact when pressing wheel 6 is regular polygon structure
Mulch is pressed into groove by step so that mulch is fixed more securely；In addition, when pressing wheel 6 is regular polygon structure, press mold
The diameter of wheel 6 specifically refer to two of face of the regular polygon it is the distance between diagonal, the diameter of pressing wheel 6 is more than earthing roller
5 diameter, as the distance between the diagonal diameter for being more than earthing roller 5.Further, use can also be set on pressing wheel 6
In the pressing mold tooth for compressing mulch, you can mulch is pressed into groove to be arranged on pressing wheel 6 to soil direction extension press mold tooth
In so that mulch is fixed more securely.In actual use since the height of field and soil hardness are indefinite, to pressing wheel 6
Diametric requirements it is also different, it is possible to the pressing wheel 6 for configuring plurality of specifications, select need pressing wheel 6 be mounted on the earthing
On roller 5.
Further, earthing roller 5 is provided at both ends with supporting rod component 50, earthing roller 5 by supporting rod component 50 with connect
Axis 51 connects.Specifically, earthing roller 5 is fixed on by connecting shaft 51 in rack 1, earthing roller 5 is by supporting rod component 50 and even
Spindle 51 connects, to ensure that axial displacement will not occur for earthing roller 5 so that the soil flowed out from the position of 5 one side opening of earthing roller
Earth can be covered on mulch, without being thrown in other positions, improve earthing efficiency.The supporting rod component 50 includes at least three
A supporting rod, the extending direction for extending perpendicularly to connecting shaft 51 of supporting rod, supporting rod can be specifically and earthing roller 5
Madial wall and connecting shaft 51 connect.
Further, 5 both ends of earthing roller are provided with native part 53 close to the position of supporting rod component 50, hold together the inclination of native part 53
It is arranged in earthing roller 5.It is arranged in earthing roller 5 specifically, holding together native part 53, and holds together native part 53 and be inclined in earthing roller 5
Chamber both ends, that is, hold together native part 53 and earthing roller 5, connecting shaft 51 are a certain included angle in the horizontal direction, or holds together the extension of native part 53
Direction and the extending direction of connecting shaft 51 are in a certain angle, which can be specifically chosen as needed, its preferred tool
Body can be 30 ° or 50 ° so that soil can be held together native part 53 by this and hold together to unearthed hole 52.Enter earthing roller from 5 both sides of earthing roller
5 soil holds together native part 53 by this and enters 5 inner cavity of earthing roller, and the unearthed hole 52 by being opened on earthing roller 5 is flowed out, covering
On mulch, the earthing operation of mulch medium position is realized, manpower is greatly saved, improves the work effect of overlay film earthing
Rate.
Further, hold together soil wheel 4 and be inclined at the both sides of rack 1 and corresponding with the both ends open of earthing roller, hold together soil
It is formed towards line direction before rack between wheel 4 and earthing roller 5 and holds together Tu Kou.Specifically, hold together 4 setting of soil wheel in the outside of rack 1 and
With 5 shape of earthing roller at a certain angle, that is, line direction holds together Tu Kou before being formed towards rack, and the size of the angle can be according to soil
The hardness of earth and mamoty 3 shovel out soil soil block size when shoveling out groove determines, for example when soil block is larger, which is arranged
It is larger so that soil can hold together native lid in mulch both sides, it is also possible that a part of soil is more square more by this
Just 5 inner cavity of earthing roller is entered.Further, the preceding line direction of rack 1 specifically refers under real use state, the overlay film
Drag links are integrally moved along towards the direction of frame front beam 10.
Further, water sprayer 7 is additionally provided on frame front beam 10, the water sprayering hole of water sprayer 7 has been located at mamoty 3 and mulch
Between frame 2.Specifically, water sprayer 7 is arranged on 1 front-axle beam of rack, the water sprayering hole of water sprayer 7 be located at mamoty 3 and ground film rack 2 it
Between, go to soil to carry out after soil loosens the soil playing a mamoty 3, the water in water sprayer 7 passes through the water sprayering hole stream that is arranged below water sprayer 7
Go out, soil is moistened before overlay film, it is ensured that soil has sufficient moisture.Furthermore it is also possible to be carried out by the water sprayer 7
The operations such as pesticide spraying.
Further, overlay film drag links provided in this embodiment further include traction connector 11, and traction connector 11 is arranged
On 1 front-axle beam of rack, for being connect with dragger.Specifically, being additionally provided with traction connector 11 on frame front beam 10, traction connects
11 one end of fitting is connected on frame front beam 10, and the other end is connected on the hitching machineries such as tractor, passes through the tractions such as tractor
Machinery drives overlay film drag links to realize the operation of overlay film earthing.
Overlay film drag links provided in this embodiment, including：Rack, ground film rack play mamoty, hold together soil wheel, earthing roller and press mold
Wheel.Play mamoty the position in frame front beam both sides be set and plays mamoty and be located at the lower section of frame front beam, for progress overlay film it
Before, groove is carried out to soil, field is formed, to facilitate carry out overlay film；This is provided with ground film rack after playing mamoty, and mulch passes through the ground
Film frame is fixed, and during the overlay film drag links move, mulch is attached to by ground film rack paving on field.It is arranged in mulch
Soil wheel is held together for gathering to playing the soil that mamoty is opened in frame rear, which is brought to the both sides of mulch with fixedly
Film；Further, hold together soil wheel to hold together part soil into earthing roller, by the part, soil is sprinkled upon mulch to earthing roller in rotation process
On so that the fixation of mulch is more secured.Further, which can also be to the soil on the field and mulch after overlay film
Carry out suppression and it is smooth so that field is more smooth, but also mulch it is fixed more securely.
Further, pressing wheel, the diameter of pressing wheel is arranged in earthing roller both sides in overlay film drag links provided in this embodiment
More than the diameter of earthing roller, the both sides of mulch are pressed into the groove that mamoty shovels out by the pressing wheel, then by holding together soil
Wheel holds together soil to the mulch both sides, and mulch is fixed, and the case where so as to avoid mulch both sides not by soil fixing, carries
The high fixed effect of mulch；Can uncover mulch from soil surface to avoid natural external forces such as wind-force causes soil that cannot keep
Moisture appropriate and temperature are to influence the growth of crops, reduce the problem of crop yield.It is provided by the utility model to cover
Film drag links can be very good that manpower is replaced to carry out soil overlay film operation, to save a large amount of human and material resources, and this reality
More preferable with the overlay film drag links overlay film effect of novel offer, performance is more preferably.Further, overlay film earthing provided in this embodiment
Machine further includes water sprayer, and water sprayer setting is rising between mamoty and earthing roller, for carrying out overlay film earthing to soil surface
Before, it sprinkles water to soil surface and soil is made to obtain sufficient moisture, keep moistening, avoid the overlay film caused by prolonged drought weather
After earthing, crops influence growth because of water shortage, the problem of to reduce crop yield.It is provided by the utility model to cover
Film drag links can replace manpower to carry out soil overlay film operation, to save a large amount of human and material resources, and the utility model
The overlay film drag links of offer, further include water sprayer, when can avoid encountering prolonged drought weather, after carrying out overlay film earthing, and crops
The problem of influencing growth because of water shortage.
The above content is combine specific embodiment further detailed description of the utility model, and it cannot be said that
The specific implementation of the utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, all should be considered as belonging to
In the scope of protection of the utility model.
Claims (10)
1. a kind of overlay film drag links, which is characterized in that including：Rack, ground film rack play mamoty, hold together soil wheel, earthing roller and press mold
Wheel, the rack includes frame front beam, and described mamoty is arranged in the frame front beam both sides and positioned at the frame front beam
Lower section；The earthing roller is arranged at the rack rear portion, and the earthing roller is connect by connecting shaft with the rack；The press mold
Wheel is arranged in earthing roller both sides and is connect with the earthing roller, and the diameter of the pressing wheel is more than the straight of the earthing roller
Diameter；It is described hold together soil wheel setting in the shell outside and corresponding with the earthing roller；The ground film rack is arranged in described mamoty
Between the earthing roller and below the rack.
2. overlay film drag links as described in claim 1, which is characterized in that the pressing wheel is circular ring structure or regular polygon
Ring structure.
3. overlay film drag links as claimed in claim 2, which is characterized in that be additionally provided on the pressing wheel for compressing mulch
Press mold tooth.
4. overlay film drag links as claimed in claim 3, which is characterized in that the pressing wheel passes through pressing wheel with the earthing roller
Connector is detachably connected.
5. overlay film drag links according to any one of claims 1-4, which is characterized in that the earthing roller passes through supporting rod component
With the connection axis connection.
6. overlay film drag links as claimed in claim 5, which is characterized in that the earthing roller is provided at both ends with native part, described
Hold together native part to be inclined in the earthing roller.
7. overlay film drag links according to any one of claims 1-4, which is characterized in that the earthing roller is tubular, described to cover
Unearthed hole is provided on native roller.
8. overlay film drag links as claimed in claim 7, which is characterized in that it is described hold together soil wheel and the both ends open of the earthing roller
It is corresponding, it is described to hold together to be formed between soil wheel and the earthing roller and hold together Tu Kou, it is described hold together Tu Kou towards the rack direction of advance.
9. overlay film drag links according to any one of claims 1-4, which is characterized in that be additionally provided with and spill on the frame front beam
The water sprayering hole of water dispenser, the water sprayer is located at described rise between mamoty and the ground film rack.
10. overlay film drag links according to any one of claims 1-4, which is characterized in that further include traction connector, it is described to lead
Draw connector to be arranged on the frame front beam, for connecting with dragger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820525259.1U CN208064033U (en) | 2018-04-13 | 2018-04-13 | A kind of overlay film drag links |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820525259.1U CN208064033U (en) | 2018-04-13 | 2018-04-13 | A kind of overlay film drag links |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208064033U true CN208064033U (en) | 2018-11-09 |
Family
ID=64041287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820525259.1U Expired - Fee Related CN208064033U (en) | 2018-04-13 | 2018-04-13 | A kind of overlay film drag links |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208064033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110367008A (en) * | 2018-04-13 | 2019-10-25 | 刘占鑫 | A kind of overlay film drag links |
-
2018
- 2018-04-13 CN CN201820525259.1U patent/CN208064033U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110367008A (en) * | 2018-04-13 | 2019-10-25 | 刘占鑫 | A kind of overlay film drag links |
| CN110367008B (en) * | 2018-04-13 | 2024-05-24 | 张掖市农业科学研究院 | Tectorial membrane earthing machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181109 Termination date: 20200413 |