CN109479585A - A kind of greenhouse film wrap-up - Google Patents

A kind of greenhouse film wrap-up Download PDF

Info

Publication number
CN109479585A
CN109479585A CN201811375608.7A CN201811375608A CN109479585A CN 109479585 A CN109479585 A CN 109479585A CN 201811375608 A CN201811375608 A CN 201811375608A CN 109479585 A CN109479585 A CN 109479585A
Authority
CN
China
Prior art keywords
roll
wind
block
rotating bar
supporting block
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.)
Granted
Application number
CN201811375608.7A
Other languages
Chinese (zh)
Other versions
CN109479585B (en
Inventor
谢海平
苏艳斌
卜晓静
许志红
闫莉
孙丽红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Feng Xu Agricultural Science And Technology Ltd Co
Original Assignee
Anhui Feng Xu Agricultural Science And Technology Ltd Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Feng Xu Agricultural Science And Technology Ltd Co filed Critical Anhui Feng Xu Agricultural Science And Technology Ltd Co
Priority to CN201811375608.7A priority Critical patent/CN109479585B/en
Publication of CN109479585A publication Critical patent/CN109479585A/en
Application granted granted Critical
Publication of CN109479585B publication Critical patent/CN109479585B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/22Shades or blinds for greenhouses, or the like
    • A01G9/227Shades or blinds for greenhouses, or the like rolled up during non-use
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor

Abstract

The present invention discloses a kind of greenhouse film wrap-up, including symmetrical support base, support base is equipped with support column, straight line electric cylinders are equipped on the inside of support column, straight line electric cylinders are equipped with sliding block, sliding block side is equipped with the first rotating bar, the side of first rotating bar is equipped with the second rotating bar, second rotating bar one end is equipped with support plate, support plate is equipped with the second motor, second motor output end is equipped with the first wind-up roll, another second motor output end is equipped with the second wind-up roll, is equipped with clamping unit on the first wind-up roll and the second wind-up roll.There are two the present invention for one greenhouse installation, straight line electric cylinders and the second motor are opened simultaneously, greenhouse film is packed up on second wind-up roll and the first wind-up roll and is perhaps discharged when greenhouse film is packed up or discharges completion, straight line electric cylinders and the second motor are simultaneously closed off.

Description

A kind of greenhouse film wrap-up
Technical field
The present invention relates to a kind of wrap-up, specifically a kind of greenhouse film wrap-up.
Background technique
Green house of vegetables is a kind of frame structure of film with outstanding thermal insulation property, and the people that it occurs alloing have Vegetables in improper season.General green house of vegetables is covered with one or more layers insulating plastic pipe using bamboo structure or the skeleton of steel construction above Film, material is thus formed a greenhouse spaces.Make that there is good heat insulation effect in canopy.
The thermal insulation plastic film of green house of vegetables in the prior art, outside setting often uses manual type from greenhouse both sides bottom End finally covers on above big-canopy framework, has a problem that drawing: control also not phase of the plantation of different vegetable for temperature Together, after the completion of the vegetable cultivation that former needs to keep the temperature, when the vegetables of new plantation do not need heat preservation, and needing will be on greenhouse Thermal insulation plastic film remove, also or, same vegetables need constantly keeping the temperature and cutting between not keeping the temperature for the control of temperature Change, then seemingly installed by artificial mode at this time dismantle booth thermal insulation plastic film again just and seem it is extremely inconvenient.
In view of this, should be improved green house of vegetables in the prior art, above-mentioned technical problem can be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of greenhouse film wrap-ups, solve the problems, such as that background technique is put forward.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of greenhouse film wrap-up, including symmetrical support base, support base is equipped with symmetrical Fastener hole, which is characterized in that the support base is equipped with support column, and gag lever post is equipped on the outside of support column, is set on the inside of support column There are straight line electric cylinders, straight line electric cylinders are equipped with sliding block.
The sliding block side is equipped with the first rotating bar, makes the company of rotation between sliding block and the first rotating bar by first rotating shaft Connect, the side of the first rotating bar is equipped with the second rotating bar, by the second shaft make the one the first rotating bars and the second rotating bar it Between be rotatablely connected, second rotating bar one end be equipped with support plate.
It is equipped with the second motor on the inside of the symmetrical support plate, any one second motor output end is equipped with first Wind-up roll, the first wind-up roll inner hollow, another second motor output end are equipped with the second wind-up roll, the second wind-up roll and first Wind-up roll is slidably connected.
Be equipped with clamping unit on first wind-up roll and the second wind-up roll, clamping unit cover in the first wind-up roll and On second wind-up roll.
Sliding rail is equipped in the symmetrical support plate, sliding rail is equipped with the second supporting block, the second supporting block and branch Fagging is slidably connected.
Support rod is equipped on the inside of symmetrical second supporting block, support rod one end is equipped with pressure roller.
Further, the gag lever post is L-shaped.
Further, the sliding block is L-shaped.
Further, sliding block lower end side is equipped with the first symmetrical supporting block, any one first supporting block It is equipped with first motor, first motor output end is equipped with hook, and the hook other end and another first supporting block are rotatablely connected.
Further, the clamping unit includes sliding sleeve, gripping sleeve and fastening block, sliding sleeve cover in the first wind-up roll and On second wind-up roll, gripping sleeve is equipped on the inside of sliding sleeve, gripping sleeve lower end is equipped with symmetrical fastening block, and fastening block is located at big The outside of canopy profile, gripping sleeve and fastening block are elastic component, and fastening block is equipped with threaded hole.
Further, the support plate lower end is equipped with third supporting block, and third supporting block is equipped with adjustable spring, and stretch bullet Spring one end is connected with the second supporting block.
Beneficial effects of the present invention: the 1, present invention packing up and releasing by straight line electric cylinders and the second motor control greenhouse film It puts;
1, the present invention is mutually rotated using sliding block with the first rotating bar and the first rotating bar is mutually rotated with the second rotating bar, Enable the first wind-up roll of the invention during coiling along greenhouse contour motion, while being also suitable for different big Canopy profile;
2, the present invention allows the present invention to difference using having retractility between the first wind-up roll and the second wind-up roll The greenhouse of length carries out film take-up;
3, the present invention uses pressure roller, to being bonded, to prevent from sticking up when rolling or discharging in film with greenhouse profile It rises.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is greenhouse film wrap-up structural schematic diagram of the present invention;
Fig. 2 is that the present invention rolls filminess schematic diagram;
Fig. 3 is partial enlargement diagram at A of the present invention;
Fig. 4 is partial enlargement diagram at B of the present invention;
Fig. 5 is partial enlargement diagram at C of the present invention;
Fig. 6 is partial structural diagram of the present invention;
Fig. 7 is clamping unit structural schematic diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " aperture ", "upper", "lower", " thickness ", "top", " in ", Indicating positions or the positional relationship such as " length ", "inner", " surrounding ", are merely for convenience of description of the present invention and simplification of the description, without It is that the component of indication or suggestion meaning or element must have a particular orientation, is constructed and operated in a specific orientation, therefore not It can be interpreted as limitation of the present invention.
A kind of greenhouse film wrap-up, as shown in Figure 1, Figure 2 and Figure 3, including symmetrical support base 1, support Pedestal 1 is equipped with symmetrical fastener hole 11, is fastenedly connected support base 1 on the ground by screw.
As shown in Figure 4 and Figure 5, support base 1 is equipped with support column 2, is equipped with gag lever post 21, gag lever post on the outside of support column 2 21 is L-shaped, and straight line electric cylinders 3 are equipped on the inside of support column 2, and straight line electric cylinders 3 are equipped with sliding block 4, as shown in fig. 6, sliding block 4 is L-shaped, it is sliding 4 lower end side of block is equipped with the first symmetrical supporting block 41, any one first supporting block 41 is equipped with first motor 42, the One motor, 42 output end is equipped with hook 43, and 43 other ends of hook and another first supporting block 41 are rotatablely connected.
Straight line electric cylinders 3 are opened, the sliding block 4 in straight line electric cylinders 3 is moved along the guide rail in straight line electric cylinders 3, opens the first electricity Machine 42,42 output end of first motor drive 43 rotation of hook, and hook 43 turns to 2 outside of fitting support column, closing straight-line electric In the case where cylinder 3, in the case that sliding block 4 is suddenly fallen off, 43 hook of hook locks sliding block 4 on gag lever post 21 Extremely.
4 side of sliding block is equipped with the first rotating bar 5, makes the company of rotation between sliding block 4 and the first rotating bar 5 by first rotating shaft 51 It connects, the side of the first rotating bar 5 is equipped with the second rotating bar 52, makes the one the first rotating bars 5 and second turn by the second shaft 53 It is rotatablely connected between lever 52,52 one end of the second rotating bar is equipped with support plate 54.
The second motor 6 is equipped on the inside of symmetrical support plate 54, any one 6 output end of the second motor is equipped with first Wind-up roll 61,61 inner hollow of the first wind-up roll, another 6 output end of the second motor are equipped with the second wind-up roll 62, the second winding Roller 62 is slidably connected with the first wind-up roll 61;Volume has greenhouse film on second wind-up roll 62 and the first wind-up roll 61, opens straight Greenhouse film is packed up or discharged on line electric cylinders 3 and the second motor 6, the second wind-up roll 62 and the first wind-up roll 61.
There is retractility between first wind-up roll 61 and the second wind-up roll 62, can freely be carried out according to the length of different greenhouses It freely adjusts, adapts to different greenhouse length;Pass through sliding block 4 and the first rotating bar 5 mutually rotation and the first rotating bar 5 and second Rotating bar 52 mutually rotates, and makes the first wind-up roll 61 that can be bonded different greenhouse profiles, adapts to different greenhouse profiles, further The present invention is suitable for different greenhouses, enhances practicability.
It is equipped with clamping unit 7 on first wind-up roll 61 and the second wind-up roll 62, as shown in fig. 7, clamping unit 7 covers On first wind-up roll 61 and the second wind-up roll 62, clamping unit 7 includes sliding sleeve 71, gripping sleeve 72 and fastening block 73, sliding sleeve 71 sets on the first wind-up roll 61 and the second wind-up roll 62, are equipped with gripping sleeve 72,72 lower end of gripping sleeve is equipped on the inside of sliding sleeve 71 Symmetrical fastening block 73, fastening block 73 are located at the outside of greenhouse profile, and gripping sleeve 72 and fastening block 73 are elastic component, tightly Gu block 73 is equipped with threaded hole 74, bolt passes through threaded hole 74, nut is screwed on bolt, makes 73 mutual extrusion of fastening block, into One step makes gripping sleeve 72 clamp film of the volume on the first wind-up roll 61 and the second wind-up roll 62 downwards.
Sliding rail 55 is equipped in symmetrical support plate 54, sliding rail 55 is equipped with the second supporting block 8, the second supporting block 8 It is slidably connected with support plate 54, the second supporting block 8 is slided along sliding rail 55.
Support rod 81 is equipped on the inside of the second symmetrical supporting block 8,81 one end of support rod is equipped with pressure roller 82, pressure roller 82 Film on greenhouse profile is flattened, prevents from tilting when rolling or discharging in film.
54 lower end of support plate is equipped with third supporting block 56, and third supporting block 56 is equipped with adjustable spring 57, adjustable spring 57 One end is connected with the second supporting block 8, and adjustable spring 57 pulls the second supporting block 8 to move down along sliding rail, further makes pressure roller 82 are fitted on greenhouse profile.
Application method: symmetrical support base 1 is fixed on respectively and is covered with the two of film greenhouse by the first step End, there are two the present invention, the mutual mirror image distributions of two present invention for a greenhouse installation;
Second step opens straight line electric cylinders 3, and the first wind-up roll 61 and the second wind-up roll 62 is made to be located at the bottom for being covered with film greenhouse Clamping unit 7 is slided by film roll on the first wind-up roll 61 and the second wind-up roll 62 in end, clamps the starting point of film tight Gu on the first wind-up roll 61 and the second wind-up roll 62;
Third step opens first motor 42, and 42 output end of first motor drives 43 rotation of hook, and hook 43 turns to level Position;
4th step, while opening straight line electric cylinders 3 and the second motor 6, the second wind-up roll 62 on the first wind-up roll 61 to big Canopy film is packed up or is discharged;
5th step simultaneously closes off straight line electric cylinders 3 and the second motor 6 when greenhouse film is packed up or discharges completion, First motor 42 is opened, 42 output end of first motor drives 43 rotation of hook, and hook 43 turns to 2 outside of fitting support column.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example. Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close Suitable mode combines.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.

Claims (6)

1. a kind of greenhouse film wrap-up, including symmetrical support base (1), support base (1) is equipped with symmetrical point The fastener hole (11) of cloth, which is characterized in that the support base (1) is equipped with support column (2), and limit is equipped on the outside of support column (2) Position bar (21), support column (2) inside are equipped with straight line electric cylinders (3), and straight line electric cylinders (3) are equipped with sliding block (4);
Sliding block (4) side is equipped with the first rotating bar (5), makes sliding block (4) and the first rotating bar (5) by first rotating shaft (51) Between be rotatablely connected, the side of the first rotating bar (5) is equipped with the second rotating bar (52), makes the one the first by the second shaft (53) It is rotatablely connected between rotating bar (5) and the second rotating bar (52), the second rotating bar (52) one end is equipped with support plate (54);
The second motor (6) are equipped on the inside of the symmetrical support plate (54), any one the second motor (6) output end is set Have the first wind-up roll (61), the first wind-up roll (61) inner hollow, another the second motor (6) output end is equipped with the second wind-up roll (62), the second wind-up roll (62) is slidably connected with the first wind-up roll (61);
It is equipped with clamping unit (7) on first wind-up roll (61) and the second wind-up roll (62), clamping unit (7) is covered On one wind-up roll (61) and the second wind-up roll (62);
It being equipped with sliding rail (55) in the symmetrical support plate (54), sliding rail (55) is equipped with the second supporting block (8), and second Supporting block (8) is slidably connected with support plate (54);
It is equipped with support rod (81) on the inside of symmetrical second supporting block (8), support rod (81) one end is equipped with pressure roller (82)。
2. a kind of greenhouse film wrap-up according to claim 1, which is characterized in that the gag lever post (21) is L-shaped.
3. a kind of greenhouse film wrap-up according to claim 1, which is characterized in that the sliding block (4) is L-shaped.
4. a kind of greenhouse film wrap-up according to claim 1, which is characterized in that sliding block (4) the lower end side Equipped with symmetrical the first supporting block (41), any one first supporting block (41) is equipped with first motor (42), the first electricity Machine (42) output end is equipped with hook (43), and hook (43) other end and another first supporting block (41) are rotatablely connected.
5. a kind of greenhouse film wrap-up according to claim 1, which is characterized in that the clamping unit (7) includes Sliding sleeve (71), gripping sleeve (72) and fastening block (73), sliding sleeve (71) are covered in the first wind-up roll (61) and the second wind-up roll (62) on, gripping sleeve (72) are equipped on the inside of sliding sleeve (71), gripping sleeve (72) lower end is equipped with symmetrical fastening block (73), tightly Gu block (73) is located at the outside of greenhouse profile, gripping sleeve (72) and fastening block (73) are elastic component, and fastening block (73) is equipped with Threaded hole (74).
6. a kind of greenhouse film wrap-up according to claim 1, which is characterized in that support plate (54) lower end is set Have third supporting block (56), third supporting block (56) is equipped with adjustable spring (57), adjustable spring (57) one end and the second support Block (8) is connected.
CN201811375608.7A 2018-11-19 2018-11-19 Greenhouse film winding device Active CN109479585B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811375608.7A CN109479585B (en) 2018-11-19 2018-11-19 Greenhouse film winding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811375608.7A CN109479585B (en) 2018-11-19 2018-11-19 Greenhouse film winding device

Publications (2)

Publication Number Publication Date
CN109479585A true CN109479585A (en) 2019-03-19
CN109479585B CN109479585B (en) 2021-08-24

Family

ID=65696988

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811375608.7A Active CN109479585B (en) 2018-11-19 2018-11-19 Greenhouse film winding device

Country Status (1)

Country Link
CN (1) CN109479585B (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201969117U (en) * 2010-09-21 2011-09-14 曾子健 Portable infusion support
CN202293410U (en) * 2011-09-21 2012-07-04 宝鸡市天瑞汽车内饰件有限公司 Safety protection device for hydraulic press
CN203206832U (en) * 2012-09-24 2013-09-25 芜湖欧标农业发展有限公司 Curtain rolling apparatus of ventilating opening
CN203665529U (en) * 2013-12-31 2014-06-25 重庆交通大学 Mechanical arm with crossed and staggered mechanical fingers
CN204157379U (en) * 2014-09-11 2015-02-18 红河学院 Booth net winder
CN205157465U (en) * 2015-11-25 2016-04-13 山东电力建设第一工程公司 Boiler heating surface horizontal position welding mouth X X -ray radiographic inspection machine fixed bolster of detecting a flaw
CN206743026U (en) * 2017-05-22 2017-12-12 何昕宇 The greenhouse rolling blind motor falsework built using solar energy and hydraulic cylinder
CN107511759A (en) * 2017-09-28 2017-12-26 南京宝丽晶电子科技有限公司 A kind of plane ceramic target fixture of angle adjustable
CN207284445U (en) * 2017-10-17 2018-05-01 中国农业大学 A kind of device for being used to adjust greenhouse booth face coating covering position
CN207476398U (en) * 2017-10-24 2018-06-12 四川农业大学 A kind of film rolling device for greenhouse
CN208054828U (en) * 2018-01-24 2018-11-06 江苏电科电气设备有限公司 A kind of electrical cabinet switch operation system

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201969117U (en) * 2010-09-21 2011-09-14 曾子健 Portable infusion support
CN202293410U (en) * 2011-09-21 2012-07-04 宝鸡市天瑞汽车内饰件有限公司 Safety protection device for hydraulic press
CN203206832U (en) * 2012-09-24 2013-09-25 芜湖欧标农业发展有限公司 Curtain rolling apparatus of ventilating opening
CN203665529U (en) * 2013-12-31 2014-06-25 重庆交通大学 Mechanical arm with crossed and staggered mechanical fingers
CN204157379U (en) * 2014-09-11 2015-02-18 红河学院 Booth net winder
CN205157465U (en) * 2015-11-25 2016-04-13 山东电力建设第一工程公司 Boiler heating surface horizontal position welding mouth X X -ray radiographic inspection machine fixed bolster of detecting a flaw
CN206743026U (en) * 2017-05-22 2017-12-12 何昕宇 The greenhouse rolling blind motor falsework built using solar energy and hydraulic cylinder
CN107511759A (en) * 2017-09-28 2017-12-26 南京宝丽晶电子科技有限公司 A kind of plane ceramic target fixture of angle adjustable
CN207284445U (en) * 2017-10-17 2018-05-01 中国农业大学 A kind of device for being used to adjust greenhouse booth face coating covering position
CN207476398U (en) * 2017-10-24 2018-06-12 四川农业大学 A kind of film rolling device for greenhouse
CN208054828U (en) * 2018-01-24 2018-11-06 江苏电科电气设备有限公司 A kind of electrical cabinet switch operation system

Also Published As

Publication number Publication date
CN109479585B (en) 2021-08-24

Similar Documents

Publication Publication Date Title
AT512381B1 (en) Window beams (shutters) with double-sided solar panels
CN203757333U (en) Rotatable extensible television frame
CN110867748B (en) Power distribution cabinet device convenient to overhaul for electric power
CN106948739A (en) A kind of preparation method of brace type telescopic folding external sunshade shutter system
CN211982924U (en) Novel film rolling mechanism for inner greenhouse of multi-span greenhouse
CN109479585A (en) A kind of greenhouse film wrap-up
EP3018284A1 (en) Winding device for covering openings of a building
DE102009019325A1 (en) Sun protection device e.g. garden pavilion, has retaining structure surrounding roof, and open segment reversibly formed within roof, where roof is openable and again closable, and is held by multiple standing bars
CN201563440U (en) Insulated device in greenhouse
CN104790822B8 (en) There is the exterior door vertically blocking function
CN105557394B (en) A kind of greenhouse facade ventilating and thermal insulating device
CN206107432U (en) Automatic folding rainproof sunshade canopy of electric motor car
DE102007033962A1 (en) Solar system for building roof, has movable ring part connected with plate and moved relative to fixed ring part such that movable ring part is rotated together with plate around axle
CN102747939A (en) Outdoor movable blind window capable of resisting typhoon and drive method for blinds of outdoor movable blind window
CN204005048U (en) A kind of built on stilts levelling device of Combined section bar planting container
CN207427974U (en) It is a kind of can automatic snow and adjust temperature intelligent greenhouse
CN112352598A (en) Greenhouse film buckling device
CN202731668U (en) Typhoon-resistance outdoor movable louvre window
CN104285728B (en) Plastic film greenhouse roofing standard-sized sheet Film rolling mechanism
CN206663639U (en) Warming plate shaping equipment
CN218793683U (en) A hosepipe wind for fire engineering
DE2931945C2 (en) Thermal protection cover
CN204069949U (en) Plastic film greenhouse roofing standard-sized sheet Juan Mo mechanism
CN205378622U (en) Greenhouse facade ventilation heat preservation device
CN216068784U (en) Plastic composite film curing device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant