CN110491311B - Lifting type anti-toppling large portal type display rack - Google Patents
Lifting type anti-toppling large portal type display rack Download PDFInfo
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- CN110491311B CN110491311B CN201910606131.7A CN201910606131A CN110491311B CN 110491311 B CN110491311 B CN 110491311B CN 201910606131 A CN201910606131 A CN 201910606131A CN 110491311 B CN110491311 B CN 110491311B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
- G09F15/02—Bills, posters, or the like therefor
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
- G09F2015/0093—Tensioned structures
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Displays For Variable Information Using Movable Means (AREA)
Abstract
The invention relates to a lifting type anti-toppling large portal display frame, which comprises a support, a propaganda page, a rotating shaft, a counterweight rod and a winding device, wherein the support is provided with a support frame; the rotating shaft is detachably arranged at the top of the frame column of the bracket in a penetrating manner and is rotationally connected with the frame, the winding device is arranged at the end part of the rotating shaft protruding out of the frame column, and the counterweight rod is clamped in the groove of the bracket; the winding device comprises a worm wheel, a worm, a driving shaft and fan blades, wherein the worm wheel is fixedly connected with the end part of the rotating shaft, the worm is meshed with the worm wheel, two ends of the worm are rotatably connected with lugs on the side wall of the frame column, a functional hole is formed in the worm, the driving shaft penetrates through the functional hole, and two ends of the driving shaft are respectively connected with two fan blades with opposite rotating directions.
Description
Technical Field
The invention relates to the technical field of publicity display frames, in particular to a lifting type anti-toppling large portal display frame.
Background
The propaganda page advertisement is still a more frequent means used in the current culture propaganda means, in the advertisement propaganda, the larger advertisement page width can attract the eyeballs of the masses, and meanwhile, the larger advertisement page width also needs a larger propaganda support, so that the propaganda display rack in the street is also larger and larger, and although the propaganda display rack is firmly fixed on the ground or a building during installation, the advertisement page with a huge area can block airflow in the use process, so that strong wind resistance can be formed in the wind, and strong destructive power is formed on the propaganda display rack, so that the larger propaganda display rack is easier to topple.
The main reason for the display rack for propaganda to topple over is that the propaganda page is "wind-scooping" to form strong destructive power, so the resistance of the propaganda page to wind must be solved in order to solve the problem of the display rack for propaganda to topple over.
Disclosure of Invention
The invention aims to solve the problem that the propaganda page forms strong wind resistance in strong wind, and aims to automatically retract the propaganda page in the strong wind, reduce the blockage to the wind and ensure the safety and the stability of the propaganda display rack.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a lifting type anti-toppling large portal display frame comprises a support, a propaganda page arranged in the support, a rotating shaft, a counterweight rod and a winding device; the support comprises a base and a frame column, the base is a U-shaped metal frame, the frame column is an n-shaped metal frame, the bottom of the frame column is fixedly connected with the base, and a groove with a rectangular cross section is formed in the inner side surface of the frame column; the rotating shaft is detachably arranged at the top of the frame column of the support in a penetrating manner and is rotatably connected with the frame, the winding device is arranged at the end part of the rotating shaft protruding out of the frame column, two ends of the counterweight rod are clamped into the grooves of the support, the top of the propaganda page is fixedly connected onto the rotating shaft, and the bottom of the propaganda page is fixedly connected with the counterweight rod;
the winding device comprises a worm wheel, a worm, a driving shaft and fan blades, the worm wheel is fixedly connected with the end part of the rotating shaft, the worm is meshed with the worm wheel, two ends of the worm are rotatably connected with lugs on the side wall of the frame column, a functional hole is formed in the worm, the driving shaft penetrates through the functional hole, and two ends of the driving shaft are respectively connected with the fan blades with opposite rotation directions.
Furthermore, the metal frame is formed by fixedly connecting metal rod pieces; the base is provided with an anchor bolt hole.
Furthermore, the cross section of the counterweight rod is a rod body with a circular shape, two ends of the counterweight rod are respectively and fixedly connected with a bearing, and the outer diameter of each bearing protrudes out of the side surface of the counterweight rod.
Furthermore, the functional holes in the worm comprise a driving counter bore and a sliding through hole, the driving counter bore is a regular hexagon counter bore perpendicular to the end face of the worm, the driving counter bores are respectively arranged on two end faces of the worm, and the two driving counter bores are coaxial; the sliding through hole is a coaxial circular through hole which is connected with the two driving counter bores; two end faces of the worm are provided with sunken guide arc faces.
Furthermore, the drive shaft is by middle to both ends slide shaft, drive block and flabellum connecting axle in proper order, the drive block of a regular hexagonal prism form of each coaxial fixed connection in slide shaft both ends, the edge length of drive block is 80% ~ 90% of drive counter bore edge length, and a flabellum connecting axle of coaxial fixed connection in every drive block tip, slide shaft run through the slip through-hole and with slip through-hole clearance fit, slide shaft's length is greater than the length of slip through-hole and a drive block thickness sum, is provided with the slope chamfer between slide shaft and the drive block.
Further, the top of frame post is provided with the top cap, the top cap is the rectangle cell body, and the top cap opening covers downwards at frame post top, and the flabellum connecting axle runs through the top cap side and connects the flabellum.
Through the technical scheme, the invention has the beneficial effects that:
the rotating shaft is detachably arranged at the top of the frame column of the support in a penetrating mode and is rotatably connected with the frame, the winding device is arranged at the end portion, protruding out of the frame column, of the rotating shaft, the balance weight rod is a rod body fixed to the bottom of the propaganda page and is clamped into the groove of the support, the top of the propaganda page is fixed to the rotating shaft, the balance weight rod is fixed to the bottom of the propaganda page, the propaganda page is collected by the winding device when strong wind comes, the blocking effect of the propaganda page on the wind is reduced, the safety and the stability of the propaganda display frame are guaranteed.
The winding device comprises a worm wheel, a worm, a driving shaft and fan blades, wherein the worm wheel is fixedly connected with the end part of a rotating shaft, the worm is meshed with the worm wheel, two ends of the worm are rotatably connected with lugs on the side wall of a frame column, a functional hole is formed in the worm, the driving shaft penetrates through the functional hole, two fan blades with opposite rotating directions are respectively connected to two ends of the driving shaft, the rotating directions of the fan blades are opposite, so that the fan blades can be enabled to rotate towards the winding direction no matter which side of the propaganda exhibition frame is supplied with wind, the reverse rotation is avoided, and the propaganda page is prevented from being placed downwards to form a wind resistance when the direction of the strong wind is changed.
The driving shaft is provided with a sliding shaft, a driving block and a fan blade connecting shaft in sequence from the middle to two ends, the two ends of the sliding shaft are respectively and fixedly connected with a regular hexagonal prism-shaped driving block coaxially, the edge length of the driving block is 80% -90% of the edge length of a driving counter bore, the end part of each driving block is fixedly connected with a fan blade connecting shaft coaxially, the sliding shaft penetrates through a sliding through hole and is in clearance fit with the sliding through hole, the length of the sliding shaft is larger than the sum of the length of the sliding through hole and the thickness of one driving block, and the length of the sliding shaft is long, so that the driving shaft is pushed to move by blowing of the fan blades, the driving block with the upward wind direction is selected to drive a worm by sliding the sliding shaft in the sliding through hole, the effect that the rotating direction of the driving shaft is not changed even if the wind direction is.
The two end faces of the worm are provided with the sunken guide cambered surfaces, the inclined chamfers are arranged between the sliding shaft and the driving block, and the guide cambered surfaces and the inclined chamfers have guide functions, so that the driving block can more easily enter the driving counter bore to drive the worm to rotate.
Drawings
FIG. 1 is a schematic structural view of a lifting type anti-toppling large portal exhibition frame;
FIG. 2 is a front view of a lifting type anti-toppling large portal exhibition frame;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a top view of a lifting type anti-toppling large portal exhibition frame of the present invention;
FIG. 5 is a schematic view of the winding device of the present invention;
FIG. 6 is a front view of the winding apparatus of the present invention;
FIG. 7 is a top view of the winding device of the present invention;
FIG. 8 is a side view of the winding apparatus of the present invention;
FIG. 9 is a schematic view of the winding device of the present invention;
FIG. 10 is a schematic view of the worm gear of the present invention;
fig. 11 is a schematic view of the drive shaft mechanism of the present invention.
The reference numbers in the drawings are as follows: the multifunctional advertising board comprises a support 1, a poster 2, a rotating shaft 3, a counterweight rod 4, a winding device 5, a top cover 6, a base 11, a frame column 12, a worm wheel 51, a worm 52, a driving shaft 53, fan blades 54, an anchoring bolt hole 111, lugs 121, a functional hole 521, a fan blade connecting shaft 531, a driving block 532, a sliding shaft 533, a driving counter bore 5211 and a sliding through hole 5212.
Detailed Description
The invention is further described with reference to the following figures and detailed description:
as shown in fig. 1, 2 and 4, the support 1 includes a base 11 and a frame column 12, the base 11 is a "U" shaped metal frame, an anchor bolt hole 111 is arranged on the base 11, the frame column 12 is an "n" shaped metal frame, the bottom of the frame column 12 is fixedly connected with the base 11, most of the metal frame is formed by welding rod pieces, the rod pieces are arranged in a staggered manner in a space and are welded to form the "U" shaped base 11 and the "n" shaped frame column 12, a gap exists between the rod pieces and thus wind can pass through the metal frame, and the support does not form a large wind resistance as a whole; the inner side surface of the frame column 12 is provided with a groove with a rectangular cross section for limiting the movement of the weight rod 4, and in strong wind, the propaganda page 2 is blown by strong wind, so that the weight rod 4 can fly to hit people or objects nearby, and potential safety hazards are caused, and the weight rod 4 is limited in the groove.
As shown in fig. 1 to 9, a lifting type anti-toppling large portal display frame comprises a support 1 and a propaganda page 2, and further comprises a rotating shaft 3, a counterweight rod 4 and a winding device 5; the rotating shaft 3 is detachably arranged at the top of a frame column 12 of the support 1 in a penetrating manner and is rotatably connected with the frame, the winding device 5 is arranged at the end part of the rotating shaft 3 protruding out of the frame column 12, the counterweight rod 4 is a rod body fixed at the bottom of the propaganda page 2, the counterweight rod 4 is clamped into a groove of the support 1, the top of the propaganda page 2 is fixed on the rotating shaft 3, the counterweight rod 4 is fixed at the bottom of the propaganda page 2, the winding device 5 is used for winding the propaganda page 2 in strong wind, the blocking effect of the propaganda page 2 on wind is reduced, and the safety and the stability of;
the winding device 5 comprises a worm wheel 51, a worm 52, a driving shaft 53 and fan blades 54, the worm wheel 51 is fixedly connected with the end part of the rotating shaft 3, the worm 52 is meshed with the worm wheel 51, two ends of the worm 52 are rotatably connected with lugs 121 on the side wall of the frame column 12, a functional hole 521 is formed in the worm 52, the driving shaft 53 is arranged in the functional hole 521 in a penetrating manner, two ends of the driving shaft 53 are respectively connected with the fan blades 54 with opposite rotating directions, the rotating directions of the fan blades 54 are opposite, so that the fan blades 54 can be enabled to rotate towards the winding direction no matter which side of the propaganda exhibition stand is supplied with wind, the reverse rotation is avoided, and the situation that the fan blades 54 reverse to put down the propaganda page 2 to form.
In this embodiment, the cross section of the weight rod 4 is a circular rod body, two ends of the weight rod 4 are respectively and fixedly connected with a bearing, the outer diameter of each bearing protrudes out of the side surface of the weight rod 4, so that the weight rod 4 can easily slide in the groove, and the friction resistance is reduced.
As shown in fig. 10, the function hole 521 inside the worm 52 includes a driving counterbore 5211 and a sliding through hole 5212, the driving counterbore 5211 is a regular hexagonal counterbore perpendicular to the end surface of the worm 52, the driving counterbores 5211 are respectively arranged on two end surfaces of the worm 52, and the two driving counterbores 5211 are coaxial; the sliding through hole 5212 is a coaxial circular through hole connecting the two drive counterbores 5211; both end faces of the worm 52 are provided with recessed guide arcs.
As shown in fig. 11, the driving shaft 53 is sequentially provided with a sliding shaft 533, a driving block 532 and a fan blade connecting shaft 531 from the middle to the two ends, the two ends of the sliding shaft 533 are respectively and coaxially and fixedly connected with a driving block 532 in a regular hexagonal prism shape, the length of the driving block 532 is 80% -90% of the length of the driving counter bore 5211, the end of each driving block 532 is coaxially and fixedly connected with a fan blade connecting shaft 531, the sliding shaft 533 penetrates through the sliding through hole 5212 and is in clearance fit with the sliding through hole 5212, the length of the sliding shaft 533 is greater than the sum of the length of the sliding through hole 5212 and the thickness of one driving block 532, and the sliding shaft 533 is long, that: the fan blades 54 are blown by wind to push the driving shaft 53 to move, the sliding shaft 533 slides in the sliding through hole 5212 to selectively use the driving block 532 with upward wind direction to drive the worm 52, so that the effect that the rotating direction of the driving shaft 53 is not changed even if the wind direction is changed is achieved, the propaganda page 2 is always kept in a furled state in strong wind, and an inclined chamfer is arranged between the sliding shaft 533 and the driving block 532, so that the driving block 532 can more easily enter the driving counter hole 5211 to drive the worm 52 to rotate.
In this embodiment, the top cover 6 is arranged at the top of the frame column 12, the top cover 6 is a rectangular groove, the opening of the top cover 6 covers the top of the frame column 12 downwards, and the fan blade connecting shaft 531 penetrates through the side surface of the top cover 6 and is connected with the fan blades 54.
When the advertising page is used, the top end of the advertising page 2 is fixed on the rotating shaft 3, the bottom of the advertising page is fixed on the weight rod 4, the rotating shaft 3 penetrates through the frame column 12 and is fixedly connected with the worm wheel 51, the weight rod 4 is deeply inserted into the groove of the frame column 12, the middle part of the weight rod 4 is held by a hand, the weight rod 4 is pushed up and down, and the weight rod 4 is ensured to smoothly slide in the groove.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made to the technical solution of the present invention within the scope of disclosure without departing from the spirit of the present invention.
Claims (4)
1. A lifting type anti-toppling large portal display frame comprises a support (1) and a propaganda page (2) arranged in the support (1), and is characterized by further comprising a rotating shaft (3), a counterweight rod (4) and a winding device (5); the support (1) comprises a base (11) and a frame column (12), the base (11) is a U-shaped metal frame, the frame column (12) is an n-shaped metal frame, the bottom of the frame column (12) is fixedly connected with the base (11), and a groove with a rectangular cross section is formed in the inner side surface of the frame column (12); the rotary shaft (3) is detachably arranged at the top of a frame column (12) of the support (1) in a penetrating manner and is rotatably connected with the frame, the winding device (5) is arranged at the end part of the rotary shaft (3) protruding out of the frame column (12), two ends of the counterweight rod (4) are clamped into a groove of the support (1), the top of the propaganda page (2) is fixedly connected onto the rotary shaft, and the bottom of the propaganda page is fixedly connected with the counterweight rod;
the winding device (5) comprises a worm wheel (51), a worm (52), a driving shaft (53) and fan blades (54), the worm wheel (51) is fixedly connected with the end part of the rotating shaft (3), the worm (52) is meshed with the worm wheel (51), two ends of the worm (52) are rotatably connected with lugs (121) on the side wall of the frame column (12), a functional hole (521) is arranged in the worm (52), a driving shaft (53) is arranged in the functional hole (521) in a penetrating way, two ends of the driving shaft (53) are respectively connected with fan blades (54) with opposite rotating directions, the functional hole (521) inside the worm (52) comprises a driving counter bore (5211) and a sliding through hole (5212), the drive counter bore (5211) is a regular hexagonal counter bore perpendicular to the end face of the worm (52), the drive counter bores (5211) are respectively arranged on two end faces of the worm (52), and the two drive counter bores (5211) are coaxial; the sliding through hole (5212) is a coaxial circular through hole which is connected with the two driving counter bores (5211); the two end faces of the worm (52) are provided with sunken guide arc faces, the driving shaft (53) is provided with a sliding shaft (533), a driving block (532) and a fan blade connecting shaft (531) from the middle to the two ends in sequence, the two ends of the sliding shaft (533) are respectively coaxially and fixedly connected with a regular hexagonal prism-shaped driving block (532), the edge length of the driving block (532) is 80% -90% of the edge length of the driving counter bore (5211), the end part of each driving block (532) is coaxially and fixedly connected with one fan blade connecting shaft (531), the sliding shaft (533) penetrates through the sliding through hole (5212) and is in clearance fit with the sliding through hole (5212), the length of the sliding shaft (533) is greater than the sum of the length of the sliding through hole (5212) and the thickness of one driving block (532), and an inclined chamfer is arranged between the sliding shaft (533) and the.
2. The lifting type anti-toppling large portal display frame according to claim 1, wherein the metal frames are formed by fixedly connecting metal rod pieces; the base (11) is provided with an anchor bolt hole (111).
3. The lifting type anti-toppling large portal display frame according to claim 1, wherein the weight rod (4) is a rod body with a circular cross section, two ends of the weight rod (4) are fixedly connected with a bearing respectively, and the outer diameter of each bearing protrudes out of the cylindrical side surface of the weight rod (4).
4. The lifting type anti-toppling large-scale portal display frame according to claim 1, wherein a top cover (6) is arranged at the top of the frame column (12), the top cover (6) is a rectangular groove body, the opening of the top cover (6) is covered at the top of the frame column (12) downwards, and a fan blade connecting shaft (531) penetrates through the side face of the top cover (6) and is connected with fan blades (54).
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CN201910606131.7A CN110491311B (en) | 2019-07-05 | 2019-07-05 | Lifting type anti-toppling large portal type display rack |
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CN201910606131.7A CN110491311B (en) | 2019-07-05 | 2019-07-05 | Lifting type anti-toppling large portal type display rack |
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CN110491311A CN110491311A (en) | 2019-11-22 |
CN110491311B true CN110491311B (en) | 2021-03-02 |
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CN111710261A (en) * | 2020-07-14 | 2020-09-25 | 张继荣 | Can receive and release advertisement putting tablet of advertising cloth through wind-force |
CN112586251A (en) * | 2020-12-29 | 2021-04-02 | 山东永起农牧科技有限公司 | Wheat lodging-resistant device |
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