CN110792895A - Novel article flat display screen device - Google Patents

Novel article flat display screen device Download PDF

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Publication number
CN110792895A
CN110792895A CN201911089715.8A CN201911089715A CN110792895A CN 110792895 A CN110792895 A CN 110792895A CN 201911089715 A CN201911089715 A CN 201911089715A CN 110792895 A CN110792895 A CN 110792895A
Authority
CN
China
Prior art keywords
rod
clamping
seat
groove
base
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.)
Withdrawn
Application number
CN201911089715.8A
Other languages
Chinese (zh)
Inventor
伍凌韬
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.)
Hunan Hongjing Electronics Co Ltd
Original Assignee
Hunan Hongjing Electronics Co Ltd
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 Hunan Hongjing Electronics Co Ltd filed Critical Hunan Hongjing Electronics Co Ltd
Priority to CN201911089715.8A priority Critical patent/CN110792895A/en
Publication of CN110792895A publication Critical patent/CN110792895A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/24Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/28Undercarriages for supports with one single telescoping pillar
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/08Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/16Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/2007Undercarriages with or without wheels comprising means allowing pivoting adjustment
    • F16M11/2014Undercarriages with or without wheels comprising means allowing pivoting adjustment around a vertical axis

Abstract

The invention discloses a novel product flat display screen device, which comprises a base, a telescopic rod and a screen, wherein the upper end of the base is provided with a connecting seat, the upper end of the connecting seat is rotatably connected with the telescopic rod, the upper end of the telescopic rod is provided with a connecting piece, one side of the connecting piece is provided with the screen, the lower end of the connecting seat is fixedly provided with a limiting block, the inner part of the limiting block slidably penetrates through a connecting rod, two ends of the connecting rod are provided with clamping blocks, two sides of the connecting rod are fixedly provided with limiting rings, the inner part of each clamping block is provided with a groove, a spring III is arranged in the groove, the upper end of the base is provided with a groove, the base is clamped with the clamping block of the connecting seat through the groove, the upper end of the connecting seat is provided with a connecting shaft, is favorable for storage and placement.

Description

Novel article flat display screen device
Technical Field
The invention relates to a display screen device, in particular to a novel product flat display screen device.
Background
The display is also commonly referred to as a monitor. The display is an I/O device belonging to a computer, namely an input/output device. The electronic document display tool is a display tool which displays a certain electronic document on a screen through a specific transmission device and reflects the electronic document to human eyes.
With the development of the society, the screen display technology is more and more perfect, the application scenes are more and more, and the display screen is visible everywhere in work and life, but the traditional display cannot meet the society of rapid development, is inconvenient to install and combine, has high learning cost and high operation difficulty, has limited adjustable angles, and limits the use of the screen, for example, when the work display is carried out and the touch screen is operated. Therefore, a new flat display device is provided to solve the above problems in the prior art.
Disclosure of Invention
The present invention is directed to a novel flat panel display device to solve the problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a novel article flat panel display device, includes base, telescopic link, screen, the upper end of base is provided with the connecting seat, and the upper end of connecting seat is rotated and is connected with the telescopic link, and the upper end of telescopic link is provided with the connecting piece, and one side of connecting piece is provided with the screen.
As a further scheme of the invention: the lower extreme of connecting seat is fixed with the stopper, and the inside slip of stopper has passed the connecting rod, and the both ends of connecting rod are provided with the fixture block, and the both sides of connecting rod are fixed with the limit ring, and the fluting has been seted up to the inside of fixture block, is provided with spring three in the fluting.
As a still further scheme of the invention: the upper end of the base is provided with a groove, and the base is clamped with a clamping block of the connecting seat through the groove.
As a still further scheme of the invention: the upper end of the connecting seat is provided with a connecting shaft, and the connecting seat is rotatably connected with the telescopic rod through the connecting shaft.
As a still further scheme of the invention: the upper end of the telescopic rod is fixed with a fixed head, and the telescopic rod is rotatably connected with the connecting piece through the fixed head.
As a still further scheme of the invention: the inside groove has been seted up to the inside of connecting piece, is provided with the connecting rod in the inside groove, and the both ends of connecting rod all set up the kelly, and the kelly extends to the connecting piece external, and the surface of kelly is provided with the sand grip, and the kelly cover is established at the connecting rod both ends, and the cover is equipped with spring two and connecting plate on the connecting rod, and the quantity of connecting plate is two, and the connecting plate is located the both sides of spring two, is fixed with spring one between the lower extreme of connecting plate, and the lower extreme outside of connecting plate all is fixed with the button, and.
As a still further scheme of the invention: the back of screen is provided with the backplate, has seted up back of the body groove in the middle of the backplate, has seted up spacing mouthful about the back of the body groove, and the inside of spacing mouthful is provided with the draw-in groove seat, and the draw-in groove seat rotates with the backplate damping to be connected, draw-in groove seat and kelly joint, and the connecting piece passes through draw-in groove seat, kelly and is connected with the backplate.
As a still further scheme of the invention: the base is of a streamline structure, and a plurality of ports are arranged on the left side of the base.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can be quickly assembled and installed, has short assembly time period, low learning cost, is beneficial to operation by novice hands, has independent components and is beneficial to storage and placement.
2. The screen of the invention has wide visual angle, the left and right angles can be adjusted at will, the front and back angles can be adjusted at the same time, and the screen is convenient for manual operation and display
Drawings
Fig. 1 is a schematic structural diagram of a novel flat panel display device.
Fig. 2 is a schematic structural view of a telescopic rod in a novel flat panel display device.
Fig. 3 is a schematic top view of a connector in a flat panel display device.
Fig. 4 is a schematic perspective view of a connection seat in a novel flat panel display device.
Fig. 5 is a schematic cross-sectional view of a connection seat in a novel flat panel display device.
Fig. 6 is an enlarged schematic view of a portion a in fig. 5.
Fig. 7 is a schematic side view of a base in a flat panel display device.
Fig. 8 is a schematic structural diagram of a back plate in a novel flat panel display device.
In the figure: 1. a base; 2. a telescopic rod; 3. a screen; 4. a connecting seat; 5. a fixed head; 6. a connecting member; 7. a button; 8. a clamping rod; 9. an inner tank; 10. a first spring; 11. a connecting plate; 12. a connecting rod; 13. a second spring; 14. a clamping block; 15. a limiting block; 16. grooving; 17. a connecting rod; 18. a connecting shaft; 19. a limiting ring; 20. a third spring; 21. a port; 22. a back plate; 23. a back groove; 24. a limiting port; 25. a clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, in an embodiment of the present invention, a novel flat panel display device includes a base 1, a telescopic rod 2, and a screen 3, wherein a connecting seat 4 is disposed at an upper end of the base 1, the telescopic rod 2 is rotatably connected to an upper end of the connecting seat 4, a connecting member 6 is disposed at an upper end of the telescopic rod 2, and the screen 3 is disposed at one side of the connecting member 6.
A limiting block 15 is fixed at the lower end of the connecting seat 4, a connecting rod 17 penetrates through the limiting block 15 in a sliding manner, clamping blocks 14 are arranged at two ends of the connecting rod 17, limiting rings 19 are fixed on two sides of the connecting rod 17, a slot 16 is formed in the clamping block 14, and a spring III 20 is arranged in the slot 16.
The utility model discloses a telescopic link, including base 1, base 4, connecting seat 4, telescopic link 2, fixing head 5, telescopic link 2 is connected with connecting piece 6 rotation through fixing head 5, and base 1's upper end is seted up flutedly, and base 1 passes through the fixture block 14 joint of recess with connecting seat 4, the upper end of connecting seat 4 is provided with connecting axle 18, and connecting seat 4 rotates with telescopic link 2 through connecting axle 18 to be connected.
Inside groove 9 has been seted up to connecting piece 6's inside, be provided with connecting rod 12 in the inside groove 9, the both ends of connecting rod 12 all set up kelly 8, kelly 8 extends to connecting piece 6 external, and kelly 8's surface is provided with the sand grip, kelly 8 cover is established at connecting rod 12 both ends, the cover is equipped with spring two 13 and connecting plate 11 on the connecting rod 12, the quantity of connecting plate 11 is two, connecting plate 11 is located spring two 13's both sides, be fixed with spring one 10 between the lower extreme of connecting plate 11, the lower extreme outside of connecting plate 11 all is fixed with button 7, and button 7 extends to connecting piece 6 external, connecting plate 11 is fixed with kelly 8.
The back of screen 3 is provided with backplate 22, has seted up back of the body groove 23 in the middle of the backplate 22, has seted up spacing mouthful 24 about back of the body groove 23, and the inside of spacing mouthful 24 is provided with draw-in groove seat 25, and draw-in groove seat 25 rotates with backplate 22 damping and is connected, draw-in groove seat 25 and kelly 8 joint, and connecting piece 6 is connected with backplate 22 through draw-in groove seat 25, kelly 8, base 1 is streamlined structure, and base 1's left side is provided with a plurality of port 21.
Specifically, when the invention is used, the clamping blocks 14 are contracted by pressing the clamping blocks 14 at the two ends of the connecting seat 4, so that the clamping blocks 14 are clamped in the grooves at the upper end of the base 1, the connecting seat 4 is in damping rotation connection (rotation positioning connection) with the telescopic rod 2, the upper end of the telescopic rod 2 is fixed with the fixed head 5, the fixed head 5 is in rotation connection with the connecting piece 6, so that the left and right rotation is convenient for adjusting the position, then the button 7 is pressed, under the linkage action, the connecting plate 11 is contracted to drive the clamping rod 8 to slide on the connecting rod 12 and contract inwards, the clamping rod 8 slides inwards from the limiting port 24, so that the clamping rod 8 is clamped in the clamping groove seat 25, the clamping groove seat 25 is in damping rotation connection with the back plate 22, so that the screen 3 can rotate, the vertical visual angle of the screen 3 can be adjusted according to actual conditions when the invention is used, and the screen 3 can, the telescopic rod 2 is inclined forwards or backwards or stretched, the screen 3 tilting device is convenient to mount and adjust, has a wide visual angle, and is convenient to directly operate (touch screen) the screen 3 when the screen 3 is laid down.
The working principle of the invention is as follows:
when the invention is used, the clamping blocks 14 at the two ends of the connecting seat 4 are pressed to contract the clamping blocks 14, so that the clamping blocks 14 are clamped in the grooves at the upper end of the base 1, the connecting seat 4 is in damped rotating connection (rotating positioning connection) with the telescopic rod 2, the upper end of the telescopic rod 2 is fixedly provided with the fixed head 5, the fixed head 5 is in rotating connection with the connecting piece 6, so that the position can be adjusted in a left-right rotating mode, then the button 7 is pressed, under the linkage action, the connecting plate 11 contracts to drive the clamping rod 8 to slide on the connecting rod 12 and contract inwards, the clamping rod 8 slides inwards from the limiting port 24, so that the clamping rod 8 is clamped in the clamping groove seat 25, the clamping groove seat 25 is in damped rotating connection with the back plate 22, so that the screen 3 can rotate, the vertical visual angle of the screen 3 can be adjusted according to actual conditions when the invention is used, the screen 3, the telescopic rod 2 is inclined forwards or backwards or stretched, the screen 3 tilting device is convenient to mount and adjust, has a wide visual angle, and is convenient to directly operate (touch screen) the screen 3 when the screen 3 is laid down.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. The utility model provides a novel article flat display screen device, includes base (1), telescopic link (2), screen (3), its characterized in that, the upper end of base (1) is provided with connecting seat (4), and the upper end of connecting seat (4) is rotated and is connected with telescopic link (2), and the upper end of telescopic link (2) is provided with connecting piece (6), and one side of connecting piece (6) is provided with screen (3).
2. The novel flat panel display device according to claim 1, wherein a limiting block (15) is fixed at the lower end of the connecting seat (4), a connecting rod (17) penetrates through the limiting block (15) in a sliding manner, clamping blocks (14) are arranged at two ends of the connecting rod (17), limiting rings (19) are fixed at two sides of the connecting rod (17), a slot (16) is formed in the clamping block (14), and a spring III (20) is arranged in the slot (16).
3. A novel flat panel display device according to claim 1, wherein a groove is formed at the upper end of the base (1), and the base (1) is clamped with the clamping block (14) of the connecting seat (4) through the groove.
4. A novel product flat display screen device according to claim 1, characterized in that the upper end of the connecting seat (4) is provided with a connecting shaft (18), and the connecting seat (4) is rotatably connected with the telescopic rod (2) through the connecting shaft (18).
5. A novel flat panel display device according to claim 1, wherein the upper end of the telescopic rod (2) is fixed with a fixing head (5), and the telescopic rod (2) is rotatably connected with the connecting piece (6) through the fixing head (5).
6. A novel product flat display screen device according to claim 1, an inner groove (9) is arranged inside the connecting piece (6), a connecting rod (12) is arranged in the inner groove (9), clamping rods (8) are arranged at two ends of the connecting rod (12), the clamping rods (8) extend out of the connecting piece (6), convex strips are arranged on the surface of the clamping rod (8), the clamping rod (8) is sleeved at two ends of the connecting rod (12), a second spring (13) and two connecting plates (11) are sleeved on the connecting rod (12), the connecting plates (11) are two in number, the connecting plates (11) are positioned at two sides of the second spring (13), a first spring (10) is fixed between the lower ends of the connecting plates (11), buttons (7) are fixed on the outer sides of the lower ends of the connecting plates (11), the button (7) extends to the outside of the connecting piece (6), and the connecting plate (11) is fixed with the clamping rod (8).
7. The novel product flat panel display device according to claim 1, wherein a back plate (22) is arranged on the back of the screen (3), a back groove (23) is formed in the middle of the back plate (22), limiting ports (24) are formed in the left and right sides of the back groove (23), a clamping groove seat (25) is arranged inside the limiting ports (24), the clamping groove seat (25) is connected with the back plate (22) in a damping rotation mode, the clamping groove seat (25) is clamped with the clamping rod (8), and the connecting piece (6) is connected with the back plate (22) through the clamping groove seat (25) and the clamping rod (8).
8. A novel product flat display screen device according to claim 1, characterized in that the base (1) is a streamline structure, and a plurality of ports (21) are arranged on the left side of the base (1).
CN201911089715.8A 2019-11-08 2019-11-08 Novel article flat display screen device Withdrawn CN110792895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911089715.8A CN110792895A (en) 2019-11-08 2019-11-08 Novel article flat display screen device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911089715.8A CN110792895A (en) 2019-11-08 2019-11-08 Novel article flat display screen device

Publications (1)

Publication Number Publication Date
CN110792895A true CN110792895A (en) 2020-02-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911089715.8A Withdrawn CN110792895A (en) 2019-11-08 2019-11-08 Novel article flat display screen device

Country Status (1)

Country Link
CN (1) CN110792895A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112032492A (en) * 2020-09-03 2020-12-04 姚秀彬 Flat display screen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203836518U (en) * 2014-04-25 2014-09-17 南京恒缇电子有限公司 Portable computer monitor support clamped through magnetism
CN107990105A (en) * 2017-11-29 2018-05-04 河南靓之声电子科技有限公司 A kind of intelligent video camera head being easily installed
CN207718282U (en) * 2017-12-21 2018-08-10 钱中华 A kind of portable computer display screen
CN208886346U (en) * 2018-10-01 2019-05-21 南京恒缇电子有限公司 A kind of portable computer display stand
CN208982962U (en) * 2018-07-24 2019-06-14 广州宁海船舶服务有限公司 A kind of television set convenient for angular adjustment
CN209229269U (en) * 2018-12-26 2019-08-09 华宇恒拓(天津)科技有限公司 A kind of combined type school monitoring probe bracket
CN209569458U (en) * 2019-02-27 2019-11-01 江苏力源液压机械有限公司 A kind of gear pump being easily installed

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203836518U (en) * 2014-04-25 2014-09-17 南京恒缇电子有限公司 Portable computer monitor support clamped through magnetism
CN107990105A (en) * 2017-11-29 2018-05-04 河南靓之声电子科技有限公司 A kind of intelligent video camera head being easily installed
CN207718282U (en) * 2017-12-21 2018-08-10 钱中华 A kind of portable computer display screen
CN208982962U (en) * 2018-07-24 2019-06-14 广州宁海船舶服务有限公司 A kind of television set convenient for angular adjustment
CN208886346U (en) * 2018-10-01 2019-05-21 南京恒缇电子有限公司 A kind of portable computer display stand
CN209229269U (en) * 2018-12-26 2019-08-09 华宇恒拓(天津)科技有限公司 A kind of combined type school monitoring probe bracket
CN209569458U (en) * 2019-02-27 2019-11-01 江苏力源液压机械有限公司 A kind of gear pump being easily installed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112032492A (en) * 2020-09-03 2020-12-04 姚秀彬 Flat display screen

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Application publication date: 20200214

WW01 Invention patent application withdrawn after publication