CN217308348U - Floor cotton picking table - Google Patents
Floor cotton picking table Download PDFInfo
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- CN217308348U CN217308348U CN202220971220.9U CN202220971220U CN217308348U CN 217308348 U CN217308348 U CN 217308348U CN 202220971220 U CN202220971220 U CN 202220971220U CN 217308348 U CN217308348 U CN 217308348U
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Abstract
The utility model discloses a landing cotton picking platform, which comprises a picking rack, a picking mechanism, a wind-driven cotton feeding mechanism, a trash discharging mechanism and a wind-driven cotton discharging mechanism; the picking rack is provided with a picking installation cavity, and the picking installation cavity is provided with a picking port and a cotton inlet channel; the picking mechanism is arranged in the picking installation cavity; the wind-power cotton feeding mechanism is arranged on the cotton feeding channel; the impurity discharging mechanism comprises at least two stages of impurity discharging structures, and the first stage of impurity discharging structure is arranged on the picking rack and communicated with the cotton inlet channel; the impurity discharging structures at all levels are communicated through cotton outlet channels; the final-stage impurity removing structure is communicated with the wind power cotton outlet mechanism. The utility model discloses carry the cotton with wind-force, arrange miscellaneous structure at the multistage row and arrange miscellaneous, the multistage back of arranging is blown off under the wind-force effect, arranges to distribute about moreover between the miscellaneous structure, must reduce holistic area occupied as far as, reduces the whole volume of picking up the platform, adopts the utility model discloses pick up the cotton dust content that obtains and compare mechanical transport and pick up the significantly reduced.
Description
Technical Field
The utility model belongs to the technical field of the agricultural machinery, concretely relates to cotton pickup table falls to ground.
Background
The conventional picking and using of the cotton fallen on the ground adopts a mechanical type to convey the cotton, the cotton contains dust and broken branches and leaves, the cotton fallen on the ground is generally stored for a period of time after being packed, the cotton cleaning machine waits for cleaning, the time for cleaning the cotton is uncertain, and the cotton containing impurities such as dust is polluted when being stored.
SUMMERY OF THE UTILITY MODEL
To the not enough of description among the above-mentioned prior art, the utility model provides a platform is picked up to cotton falling to the ground.
The technical scheme adopted by the utility model is as follows:
a landing cotton picking platform comprises a picking rack, a picking mechanism, a wind-driven cotton feeding mechanism, a trash discharging mechanism and a wind-driven cotton discharging mechanism; the picking rack is provided with a picking installation cavity, and the picking installation cavity is provided with a picking port and a cotton inlet channel; the picking mechanism is arranged in the picking installation cavity; the wind-power cotton feeding mechanism is arranged on the cotton feeding channel; the impurity discharging mechanism comprises at least two stages of impurity discharging structures, and the first-stage impurity discharging structure is arranged on the picking rack and communicated with the cotton inlet channel; the impurity discharging structures at all levels are communicated through a cotton outlet channel; the final-stage impurity removing structure is communicated with the wind-power cotton outlet mechanism. The picking mechanism picks up the ground cotton and sends the ground cotton to a cotton inlet of the cotton inlet channel, the wind power cotton inlet mechanism blows wind power to the cotton inlet channel, the ground cotton at the cotton inlet is sucked into the cotton inlet channel and blown into the impurity removing mechanism for impurity removal, the impurity removing mechanism performs at least two-stage impurity removal, dust and impurities in the ground cotton are removed, and residual dust and impurities in the cotton are reduced; after the impurities are discharged, the impurities are discharged under the action of a wind power cotton discharging mechanism.
As an optimized scheme of the utility model, the row's miscellaneous structure outside the primary is installed in the row's miscellaneous structure of primary and pick up the frame of picking up between the mechanism. And each arranges and becomes upper and lower distribution between the miscellaneous structure, this kind of structure can make full use of pick up the frame, reduces holistic occupation volume.
As an optimized scheme of the utility model, cotton mechanism is advanced to wind-force, including advancing cotton air-supply line, the air intake that advances cotton air-supply line is located into cotton passageway outside, and the air outlet that advances cotton air-supply line is located into cotton passageway, and advances the wind-force direction orientation trash removal mechanism of cotton air-supply line. Specifically, a wind baffle is arranged at the outlet of a cotton inlet pipe, and the wind baffle shields and reverses the wind blown in by the cotton inlet pipe so as to blow the wind to a primary impurity removing structure along a cotton inlet channel.
As a preferred scheme of the utility model, the impurity removing mechanism comprises two-stage impurity removing structures, namely an impurity removing structure I and an impurity removing structure II; the impurity discharging structure II is positioned between the impurity discharging structure I and the picking mechanism and is lower than the impurity discharging structure I; the impurity discharging cotton inlet I of the impurity discharging structure I is communicated with the cotton inlet channel, the impurity discharging cotton outlet I of the impurity discharging structure I is communicated with the impurity discharging cotton inlet II of the impurity discharging structure II through the cotton outlet channel, and the impurity discharging cotton outlet II of the impurity discharging structure II is communicated with the wind power cotton outlet mechanism.
As a preferred scheme of the utility model, the impurity removing structure I comprises an impurity removing cylinder I and an impurity removing conveying auger I; the trash discharging cylinder I is provided with a trash discharging cotton inlet I, a trash discharging cotton outlet I and a trash discharging port; the impurity discharging and conveying auger I is arranged in the impurity discharging cylinder I and comprises an auger conveying section and a scattering conveying section; the scattering and conveying section corresponds to the impurity-discharging cotton outlet I. The impurity discharging port discharges the discharged impurities and can also serve as an air discharging port. The auger conveying section spirally conveys the entering ground cotton to the scattering conveying section, and the scattering conveying section scatters and conveys the cotton.
As a preferred scheme of the utility model, the scattering and conveying section comprises a first scattering and conveying part and a second scattering and conveying part, and scattering rods I of the first scattering and conveying part are spirally distributed; the second breaks up the pole II that breaks up of conveying portion and becomes axial distribution, and breaks up the interval between the pole I and is greater than the interval of breaking up between the pole II. The auger conveying section conveys the first scattering conveying part, the scattering rod I scatters the fallen cotton and conveys the scattered cotton to the second scattering conveying part in a spiral mode, the scattering rod II further scatters the fallen cotton and conveys the scattered cotton to the impurity discharging cotton outlet I, the cotton enters the cotton outlet channel, the cotton outlet channel is inclined, the cotton enters the impurity discharging structure II under the self weight and the thrust of the follow-up cotton, and impurities are discharged for one time in the impurity discharging cylinder I.
As a preferred scheme of the utility model, the impurity removing structure I further comprises an air outlet cylinder, the air outlet cylinder is covered outside the impurity removing cylinder I, and a gap between the impurity removing cylinder I and the air outlet cylinder is used as an impurity removing cavity; the air outlet cylinder is provided with an air outlet, an impurity and cotton discharging opening and an impurity and cotton discharging opening; the impurity-discharging cotton inlet I is positioned at the impurity-discharging cotton inlet opening, and the impurity-discharging cotton outlet I is positioned at the impurity-discharging cotton outlet opening. In order to improve the efficiency of conveying cotton by wind power, an air outlet barrel is arranged outside the impurity removing barrel I, and an air discharging opening is arranged at one end of the air outlet barrel and is close to the impurity removing and cotton outlet.
As a preferred scheme of the utility model, the impurity discharging structure II, the impurity discharging cylinder II and the impurity discharging conveying auger II are arranged on the impurity discharging cylinder II, and the impurity discharging cylinder II is provided with an impurity discharging cotton inlet II, an impurity discharging cotton outlet II and an impurity discharging port; the impurity-discharging cotton inlet II is communicated with the cotton outlet channel; the impurity discharging and conveying auger II is arranged in the impurity discharging cylinder II and comprises a first impurity discharging and conveying section and a second impurity discharging and conveying section; the second impurity discharging and conveying section corresponds to the impurity discharging cotton outlet II; the scattering conveying rods I of the first impurity-removing conveying section are spirally distributed; the scattering conveying rods II of the second impurity discharging conveying section are axially distributed; the distance between the scattering conveying rods I is larger than that between the scattering conveying rods II. Cotton in the impurity discharging barrel II is firstly scattered by the scattering conveying rod I and is conveyed to the second impurity discharging conveying section in a spiral mode, the cotton is further scattered by the scattering conveying rod II and is conveyed to the impurity discharging outlet II, and secondary impurity discharging is carried out on the impurity discharging barrel II in the scattering conveying process.
As a preferred scheme of the utility model, wind-force goes out cotton mechanism, go out a cotton section of thick bamboo and go out cotton air-supply line including wind-force, the import that wind-force goes out a cotton section of thick bamboo communicates with each other with trash outlet cotton mouth II, and the air intake that goes out cotton air-supply line is located outside the cotton section of thick bamboo of wind-force play, and the air outlet that goes out cotton air-supply line is located wind-force play cotton section of thick bamboo and goes out the export of a cotton section of thick bamboo of air-out direction orientation wind-force play cotton air-supply line. The air of the cotton outlet air inlet pipe firstly sucks the cotton at the impurity and cotton outlet II into the wind-driven cotton outlet barrel and then blows the cotton out.
The utility model discloses a cotton is carried to wind-force to arrange miscellaneous structure at multistage row and arrange miscellaneous, especially arrange miscellaneous structure I wind-force and can also blow off dust, blow off under the wind-force effect behind the multistage row of miscellaneous, arrange to distribute about being in addition between the miscellaneous structure, must reduce holistic area occupied as far as possible, reduce the whole volume of picking up the platform, adopt the utility model discloses pick up the cotton dust content that obtains and compare mechanical transport and pick up the significantly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a second schematic structural diagram of the present invention.
Fig. 3 is a schematic structural view of the wind-force cotton feeding mechanism of the present invention.
Fig. 4 is a schematic structural diagram of the impurity removing structure I of the present invention.
Fig. 5 is an assembly schematic diagram of the trash discharging cylinder I and the trash discharging conveying auger I of the utility model.
Fig. 6 is a schematic structural view of the impurity removing and conveying auger I of the present invention.
Fig. 7 is a schematic structural diagram of the impurity removing structure II of the present invention.
Fig. 8 is a schematic structural view of the impurity discharging and conveying auger II of the present invention.
Fig. 9 is a schematic structural view of the wind-force cotton discharging mechanism of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment is as follows:
a landing cotton picking-up table is shown in figures 1 and 2 and comprises a picking-up rack 1, a picking-up mechanism 2, a wind-driven cotton feeding mechanism 3, a trash discharging mechanism and a wind-driven cotton discharging mechanism 5; the picking rack 1 is provided with a picking installation cavity 100, and the picking installation cavity 100 is provided with a picking opening and a cotton inlet channel 101; the picking mechanism 2 is arranged in the picking installation cavity 100; the wind-driven cotton feeding mechanism 3 is arranged on the cotton feeding channel 101; the impurity discharging mechanism comprises at least two levels of impurity discharging structures, and the first level of impurity discharging structure is arranged on the picking rack 1 and communicated with the cotton inlet channel 101; the impurity discharging structures at all levels are communicated through a cotton outlet channel 6; the final-stage impurity removing structure is communicated with the wind cotton outlet mechanism 5. The impurity discharging structure outside the first stage is arranged on the picking rack between the impurity discharging structure of the first stage and the picking mechanism. And each arranges and becomes upper and lower distribution between the miscellaneous structure, this kind of structure can make full use of pick up the frame, reduces holistic occupation volume.
Specifically, the wind-powered cotton feeding mechanism 3, as shown in fig. 3, includes a cotton feeding air inlet pipe 300, an air inlet of the cotton feeding air inlet pipe 300 is located outside the cotton feeding passage 101, an air outlet of the cotton feeding air inlet pipe 300 is located inside the cotton feeding passage 101, and a wind direction of the cotton feeding air inlet pipe 300 faces the impurity removing mechanism. Specifically, a wind baffle is arranged at the outlet of a cotton inlet pipe, and the wind baffle shields and reverses the wind blown in by the cotton inlet pipe so as to blow the wind to a primary impurity removing structure along a cotton inlet channel.
In this embodiment, the impurity removing mechanism includes two levels of impurity removing structures, I41 and II 42; the impurity discharging structure II42 is positioned between the impurity discharging structure I41 and the picking mechanism 2 and is lower than the impurity discharging structure I41; the impurity discharging cotton inlet I of the impurity discharging structure I41 is communicated with the cotton inlet channel 101, the impurity discharging cotton outlet I of the impurity discharging structure I41 is communicated with the impurity discharging cotton inlet II of the impurity discharging structure II42 through the cotton outlet channel 6, and the impurity discharging cotton outlet II of the impurity discharging structure II42 is communicated with the wind power cotton outlet mechanism 5.
Specifically, the impurity discharging structure I41, as shown in FIGS. 4-6, comprises an impurity discharging cylinder I410 and an impurity discharging conveying auger I411; the impurity discharging cylinder I410 is provided with an impurity discharging cotton inlet I4100, an impurity discharging cotton outlet I4101 and an impurity discharging port; the impurity discharging and conveying auger I411 is arranged in the impurity discharging barrel I410, and the impurity discharging and conveying auger I411 comprises an auger conveying section 4111 and a scattering and conveying section 4112; the scattering and conveying section 4112 corresponds to the trash discharge outlet I. The scattering and conveying section 4112 comprises a first scattering and conveying part 41121 and a second scattering and conveying part 41122, wherein scattering rods I of the first scattering and conveying part 41121 are distributed in a spiral manner; the scattering rods II of the second scattering and conveying part 41122 are axially distributed, and the distance between the scattering rods I is larger than that between the scattering rods II.
The auger conveying section conveys the first scattering conveying part, the scattering rod I scatters the ground cotton and conveys the ground cotton to the second scattering conveying part in a spiral mode, the scattering rod II further scatters the ground cotton and conveys the ground cotton to the impurity discharging cotton outlet I, the cotton enters the cotton outlet channel, the cotton outlet channel is inclined, the cotton enters the impurity discharging structure II under the self weight and the thrust of subsequent cotton, and impurity is discharged in the impurity discharging cylinder I once.
In order to improve the efficiency of conveying cotton by wind power, an air outlet barrel 412 is arranged outside the impurity removing barrel I, and a gap between the impurity removing barrel I410 and the air outlet barrel 412 is used as an impurity removing cavity; the air outlet cylinder 412 is provided with an air outlet 4121, an impurity and cotton discharging opening and an impurity and cotton discharging opening; the air discharge opening is close to the impurity and cotton discharge opening; the impurity-discharging cotton inlet I is positioned at the impurity-discharging cotton inlet opening, and the impurity-discharging cotton outlet I is positioned at the impurity-discharging cotton outlet opening.
The trash discharging structure II42 is shown in figures 7 and 8 and comprises a trash discharging cylinder II420 and a trash discharging conveying auger II421, wherein the trash discharging cylinder II420 is provided with a trash discharging cotton inlet II4201, a trash discharging cotton outlet II4202 and a trash discharging port; the impurity-discharging cotton inlet II is communicated with the cotton outlet channel 6; the impurity discharging and conveying auger II421 is arranged in the impurity discharging cylinder II420, and the impurity discharging and conveying auger II421 comprises a first impurity discharging and conveying section and a second impurity discharging and conveying section; the second impurity discharging and conveying section corresponds to the impurity discharging cotton outlet II; the scattering conveying rods I4211 of the first impurity removing conveying section are spirally distributed; the scattering conveying rods II4212 of the second impurity discharging conveying section are axially distributed; the distance between the breaking-up conveying rods I4211 is larger than that between the breaking-up conveying rods II 4212. Cotton in the trash discharging cylinder II is firstly scattered by the scattering conveying rod I4211 and spirally conveyed to the second trash discharging conveying section, the scattering conveying rod II4212 further scatters the cotton and conveys the cotton to the trash discharging outlet II, and secondary trash discharging is carried out on the trash discharging cylinder II in the scattering conveying process.
The wind-powered cotton discharging mechanism 5, as shown in fig. 9, includes a wind-powered cotton discharging cylinder 50 and a cotton discharging air inlet pipe 51, an inlet of the wind-powered cotton discharging cylinder 50 is communicated with the impurity discharging cotton outlet II, an air inlet of the cotton discharging air inlet pipe 51 is located outside the wind-powered cotton discharging cylinder 50, an air outlet of the cotton discharging air inlet pipe 51 is located inside the wind-powered cotton discharging cylinder 50, and an air outlet direction of the cotton discharging air inlet pipe 51 faces an outlet of the wind-powered cotton discharging cylinder 50. The air of the cotton outlet air inlet pipe firstly sucks the cotton at the impurity and cotton outlet II into the wind-driven cotton outlet barrel and then blows the cotton out.
The picking mechanism picks up the ground cotton and sends the ground cotton to a cotton inlet of the cotton inlet channel, the wind power cotton inlet mechanism blows wind power to the cotton inlet channel, the ground cotton at the cotton inlet is sucked into the cotton inlet channel and blown into the impurity removing mechanism for impurity removal, the impurity removing mechanism performs at least two-stage impurity removal, dust and impurities in the ground cotton are removed, and residual dust and impurities in the cotton are reduced; after the impurities are discharged, the impurities are discharged under the action of a wind power cotton discharging mechanism.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a platform is picked up to cotton falling to ground which characterized in that: comprises a picking rack (1), a picking mechanism (2), a wind-power cotton feeding mechanism (3), an impurity removing mechanism and a wind-power cotton discharging mechanism (5); the picking rack (1) is provided with a picking installation cavity (100), and the picking installation cavity (100) is provided with a picking opening and a cotton inlet channel (101); the picking mechanism (2) is arranged in the picking installation cavity (100); the wind-power cotton feeding mechanism (3) is arranged on the cotton feeding channel (101); the impurity discharging mechanism comprises at least two levels of impurity discharging structures, and the first level of impurity discharging structure is arranged on the picking rack (1) and communicated with the cotton inlet channel (101); the impurity discharging structures at all levels are communicated through a cotton outlet channel (6); the final-stage impurity removing structure is communicated with the wind cotton outlet mechanism (5).
2. A console as claimed in claim 1, wherein: the impurity discharging structure outside the first stage is arranged on the picking rack between the impurity discharging structure of the first stage and the picking mechanism.
3. A landing cotton pickup table as claimed in claim 1 or claim 2, wherein: the wind power cotton feeding mechanism (3) comprises a cotton feeding air inlet pipe (300), an air inlet of the cotton feeding air inlet pipe (300) is positioned outside the cotton feeding channel (101), an air outlet of the cotton feeding air inlet pipe (300) is positioned in the cotton feeding channel (101), and the wind power direction of the cotton feeding air inlet pipe (300) faces the impurity discharging mechanism.
4. A landing cotton pickup table as claimed in claim 1 or claim 2, wherein: the impurity removing mechanism comprises two stages of impurity removing structures, namely an impurity removing structure I (41) and an impurity removing structure II (42); the impurity discharging structure II (42) is positioned between the impurity discharging structure I (41) and the picking mechanism (2) and is lower than the impurity discharging structure I (41); the trash and cotton inlet I of the trash discharging structure I (41) is communicated with the cotton inlet channel (101), the trash and cotton outlet I of the trash discharging structure I (41) is communicated with the trash and cotton inlet II of the trash discharging structure II (42) through the cotton outlet channel (6), and the trash and cotton outlet II of the trash discharging structure II (42) is communicated with the wind power cotton outlet mechanism (5).
5. A console as claimed in claim 4, wherein: the impurity discharging structure I (41) comprises an impurity discharging cylinder I (410) and an impurity discharging conveying auger I (411); the trash discharging cylinder I (410) is provided with a trash discharging cotton inlet I, a trash discharging cotton outlet I and a trash discharging port; the impurity discharging and conveying auger I (411) is arranged in the impurity discharging barrel I (410), and the impurity discharging and conveying auger I (411) comprises an auger conveying section (4111) and a scattering and conveying section (4112); the scattering and conveying section (4112) corresponds to the trash discharge cotton outlet I.
6. A console as claimed in claim 5, wherein: the scattering and conveying section (4112) comprises a first scattering and conveying part (41121) and a second scattering and conveying part (41122), wherein scattering rods I of the first scattering and conveying part (41121) are distributed spirally; the scattering rods II of the second scattering and conveying part (41122) are axially distributed, and the distance between the scattering rods I is larger than that between the scattering rods II.
7. A console as claimed in claim 6, wherein: the impurity removing structure I (41) further comprises an air outlet cylinder (412), the air outlet cylinder (412) is covered outside the impurity removing cylinder I (410), and a gap between the impurity removing cylinder I (410) and the air outlet cylinder (412) serves as an impurity removing cavity; the air outlet cylinder (412) is provided with an air outlet (4121), an impurity and cotton discharging opening and an impurity and cotton discharging opening; the impurity-discharging cotton inlet I is positioned at the impurity-discharging cotton inlet opening, and the impurity-discharging cotton outlet I is positioned at the impurity-discharging cotton outlet opening.
8. The console as claimed in claim 4, wherein: the impurity discharging structure II (42), the impurity discharging cylinder II (420) and the impurity discharging conveying auger II (421), wherein the impurity discharging cylinder II (420) is provided with an impurity discharging cotton inlet II, an impurity discharging cotton outlet II and an impurity discharging port; the impurity-discharging cotton inlet II is communicated with the cotton outlet channel (6); the impurity discharging conveying auger II (421) is arranged in the impurity discharging barrel II (420), and the impurity discharging conveying auger II (421) comprises a first impurity discharging conveying section and a second impurity discharging conveying section; the second impurity discharging and conveying section corresponds to the impurity discharging cotton outlet II; the scattering conveying rods I (4211) of the first impurity-removing conveying section are spirally distributed; the scattering conveying rods II (4212) of the second impurity discharging conveying section are axially distributed; the distance between the breaking-up conveying rods I (4211) is larger than that between the breaking-up conveying rods II (4212).
9. A console as claimed in claim 8, wherein: wind-force goes out cotton mechanism (5), goes out cotton section of thick bamboo (50) and goes out cotton air-supply line (51) including wind-force, and the import that the cotton section of thick bamboo (50) was gone out to wind-force communicates with each other with trash discharge outlet II, and the air intake that goes out cotton air-supply line (51) is located outside wind-force goes out cotton section of thick bamboo (50), and the air outlet that goes out cotton air-supply line (51) is located wind-force goes out in cotton section of thick bamboo (50) and goes out the export that the air-out direction orientation wind-force of cotton air-supply line (51) goes out cotton section of thick bamboo (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220971220.9U CN217308348U (en) | 2022-04-26 | 2022-04-26 | Floor cotton picking table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220971220.9U CN217308348U (en) | 2022-04-26 | 2022-04-26 | Floor cotton picking table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217308348U true CN217308348U (en) | 2022-08-30 |
Family
ID=82948164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220971220.9U Active CN217308348U (en) | 2022-04-26 | 2022-04-26 | Floor cotton picking table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217308348U (en) |
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2022
- 2022-04-26 CN CN202220971220.9U patent/CN217308348U/en active Active
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