Advertising board with replaceable content

Abstract

The utility model provides an advertising board with replaceable content, and belongs to the technical field of advertising boards. The advertising board with the replaceable content comprises a base, a first shell is fixedly installed at the top of the base, a buckle mechanism is arranged on one side of the first shell, a fastening mechanism is arranged on one side of the buckle mechanism, and a backlight plate is arranged in the first shell; the advertisement cloth fixing device has the advantages that the worm is arranged, the head end and the tail end of the advertisement cloth are fixed through the long clamping plates and then stretched towards the two sides at the same time, uneven stress of the advertisement cloth can be avoided, the roller shaft for fixing the advertisement cloth can be prevented from rotating reversely through the self-locking performance when the worm gear and the worm are meshed, and therefore the advertisement cloth can be fixed. And by means of the characteristics of a third bearing ring, when the advertising cloth needs to be installed and replaced, a fastening mechanism can be wholly turned over, at the moment, the advertising cloth can be flatly laid on the backlight plate, and a user can conveniently replace the advertising cloth.

Description

Technical Field

[0001] The utility model relates to the technical field of billboards, and particularly relates to a billboard with replaceable content. Background Art

[0002] The common backlight illumination mode takes the acrylic advertising light box as an example. A plurality of daylight fluorescent tubes are arranged in the light box, and semi-transparent materials such as atomized acrylic sheets are used as the side plates of the light box to achieve the effect of emitting a uniform surface light source, serving as the backlight for transparent advertising patterns or texts. Such backlight light boxes have uniform, gentle light and high environmental compatibility.

[0003] Patent No.: CN201638507U proposes a positive light billboard device, which includes a light guide plate and a billboard. At least one end face of the light guide plate is provided with a light source. The light guide plate is in non-gap contact connection with the billboard surface through transparent bumps. The light totally reflected in the light guide plate is guided to the front of the billboard through the transparent bumps. The position of the transparent bumps is the light leakage outlet of the light in the light guide plate. The utility model directly contacts the billboard in the way of light guide points, can perform multi-point precise selective illumination, reduce interface light loss, reduce stray light, increase black and white contrast, improve optical efficiency and reduce manufacturing and use costs. By replacing the billboard with an ordinary sign board, the utility model can also be used as an ordinary indoor lighting fixture such as a table lamp or a wall lamp.

[0004] When the existing device is in use, there is a lack of a mechanism for conveniently installing and replacing the advertising fabric inside the billboard. And the conventional fixing method usually uses bolts or cable ties to fix the edge of the advertising fabric in a multi-point manner. This way will cause uneven overall stress on the fabric and result in wrinkles. When the backlight board is turned on, the shadows at the wrinkled places are relatively obvious, affecting the viewing.

[0005] Therefore, this application provides a billboard with replaceable content to meet the requirements. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide a billboard with replaceable content to solve the problem that the existing multi-point fixing method easily causes wrinkles on the advertising cloth.

[0007] To solve the above technical problem, the utility model provides the following technical solutions:

[0008] A billboard with replaceable content, including a base. A first housing is fixedly installed on the top of the base. A buckle mechanism is arranged on one side of the first housing. A fastening mechanism is arranged on one side of the buckle mechanism. A backlight board is arranged inside the first housing.

[0009] Fastening mechanism, the fastening mechanism includes a second housing, a first fastening roller and a second fastening roller, the first fastening roller and the second fastening roller are symmetrically arranged with the second housing as the center, the second housing is arranged inside the first housing, and both the first fastening roller and the second fastening roller include a first bearing seat, a first fastening plate, a second bearing seat, a worm gear, a worm, a positioning seat and a hexagonal groove. The first bearing seat is fixedly installed on one side of the second housing, a first fastening plate is movably installed on one side of the first bearing seat, a second bearing seat is fixedly installed on the other side of the second housing, a worm gear is movably installed on one side of the second bearing seat, a worm is meshed and driven on one side of the worm gear, the worm is movably installed on one side of the positioning seat, and a hexagonal groove is opened at the top of the worm.

[0010] As a preferred solution, the fastening mechanism further includes a first bearing ring, a first rotating shaft, a second bearing ring, a second rotating shaft and a linkage shaft. The first bearing ring is fixedly installed on the top of the second housing, a first rotating shaft is movably installed on one side of the first bearing ring, the second bearing ring is fixedly installed on the bottom of the second housing, a second rotating shaft is movably installed on one side of the second bearing ring, and the linkage shaft is arranged on one side of the second housing.

[0011] As a preferred solution, the first fastening roller and the second fastening roller further include a positioning block, a second fastening plate, a damping strip, a sliding groove, a first spring, a slider and a limiting groove. The positioning block is fixedly installed on the top of the first fastening plate, a second fastening plate is movably installed on one side of the positioning block, the damping strip is fixedly installed on the top of the first fastening plate, a sliding groove is opened on one side of the second fastening plate, a first spring is arranged inside the sliding groove, one side of the first spring is fixedly connected inside the sliding groove, the other side of the first spring is fixedly connected with a slider, and the slider is movably connected inside the limiting groove, and the limiting groove is opened on one side of the first fastening plate.

[0012] As a preferred solution, the damping strip is movably connected to the bottom of the second fastening plate, the slider is movably connected inside the sliding groove, and the slider is also movably connected to one side of the first fastening plate.

[0013] As a preferred solution, the buckle mechanism includes a first baffle, a hinge, a second baffle, a transparent acrylic plate and a clamping block. The first baffle and the second baffle are movably connected to one side of the first housing through a hinge, a transparent acrylic plate is fixedly installed on one side of the second baffle, and clamping blocks are fixedly connected to one side of both the second baffle and the first baffle.

[0014] As a preferred solution, the buckle mechanism further includes a clamping rod, a limiting rod, a second spring, a limiting plate and a third bearing ring. The clamping rod is movably installed on one side of the first housing. A limiting rod is fixedly connected to the top of the clamping rod. A second spring is fixedly connected to the top of the clamping rod. A limiting plate is fixedly connected to the top of the second spring. The limiting plate is fixedly installed on one side of the first housing. The third bearing ring is symmetrically installed inside the first housing with the second housing as the center.

[0015] As a preferred solution, the third bearing ring is movably installed on the left and right sides of the second housing. The limiting rod is movably installed inside the limiting plate. The clamping rod is movably connected to one side of the clamping block.

[0016] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0017] 1. For an advertising board with replaceable content, by setting a worm, fixing the head and tail ends of the advertising cloth with long clamping plates and then stretching them to both sides at the same time, the uneven stress of the advertising cloth can be avoided. At the same time, by using the self-locking property when the worm and the worm gear are engaged, the reverse rotation of the roller shaft for fixing the advertising cloth can be prevented, thus avoiding the problem of the advertising cloth becoming loose.

[0018] 2. For an advertising board with replaceable content, by setting a third bearing ring and connecting the first housing and the second housing through the third bearing ring, when it is necessary to install and replace the advertising cloth, the fastening mechanism can be turned over as a whole to be parallel to the ground. At this time, the advertising cloth can be laid flat on the backlight board, which is convenient for the user to replace the advertising cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present disclosure and, together with the specification, are further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0020] Figure 1 It is a schematic diagram of the main structure of an advertising board with replaceable content;

[0021] Figure 2 It is a schematic diagram of the partial structure of an advertising board with replaceable content;

[0022] Figure 3 It is a schematic diagram of the main structure of the fastening mechanism of an advertising board with replaceable content;

[0023] Figure 4 It is a schematic diagram of the partial structure of the fastening mechanism of an advertising board with replaceable content;

[0024] Figure 5 It is an enlarged schematic diagram of the fastening mechanism of an advertising board with replaceable content;

[0025] Figure 6 Schematic diagram of the exploded structure of a fastening mechanism for a billboard with replaceable content;

[0026] Figure 7 Schematic diagram of the main structure of a snap mechanism for a billboard with replaceable content;

[0027] Figure 8 Schematic diagram of the enlarged structure of a snap mechanism for a billboard with replaceable content:

[0028] Figure 9 Front view of a snap mechanism for a billboard with replaceable content.

[0029] [Reference numerals]

[0030] 1. Base; 2. First housing; 3. Snap mechanism; 301. First baffle; 302. Hinge; 303. Second baffle; 304. Transparent acrylic plate; 305. Block; 306. Rod; 307. Limiting rod; 308. Second spring; 309. Limiting plate; 310. Third bearing ring; 4. Fastening mechanism; 41. First fastening roller; 42. Second fastening roller; 401. Second housing; 402. First bearing ring; 403. First rotating shaft; 404. Second bearing ring; 405. Second rotating shaft; 406. First bearing seat; 407. First fastening plate; 408. Second bearing seat; 409. Worm gear; 410. Worm; 411. Positioning seat; 412. Linking shaft; 413. Hexagonal groove; 414. Positioning block; 415. Second fastening plate; 416. Damping strip; 417. Chute; 418. First spring; 419. Slide block; 420. Limiting groove; 5. Backlight board.

[0031] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications still fall within the scope of the appended claims. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention. Embodiment

[0033] As Figure 1 and Figure 2 shown, an embodiment of the present utility model provides an advertising board with replaceable content, including a base 1, a first outer shell 2 fixedly installed on the top of the base 1, a buckle mechanism 3 arranged on one side of the first outer shell 2, a fastening mechanism 4 arranged on one side of the buckle mechanism 3, and a backlight plate 5 arranged inside the first outer shell 2;

[0034] As Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, the fastening mechanism 4 includes a second outer shell 401, a first fastening roller 41 and a second fastening roller 42. The first fastening roller 41 and the second fastening roller 42 are symmetrically arranged with the second outer shell 401 as the center. The second outer shell 401 is arranged inside the first outer shell 2. Both the first fastening roller 41 and the second fastening roller 42 include a first bearing seat 406, a first fastening plate 407, a second bearing seat 408, a worm gear 409, a worm 410, a positioning seat 411 and a hexagonal groove 413. The first bearing seat 406 is fixedly installed on one side of the second outer shell 401, a first fastening plate 407 is movably installed on one side of the first bearing seat 406, a second bearing seat 408 is fixedly installed on the other side of the second outer shell 401, a worm gear 409 is movably installed on one side of the second bearing seat 408, a worm 410 is meshed and driven on one side of the worm gear 409, the worm 410 is movably installed on one side of the positioning seat 411, and a hexagonal groove 413 is opened at the top of the worm 410.

[0035] The fastening mechanism 4 further includes a first bearing ring 402, a first rotating shaft 403, a second bearing ring 404, a second rotating shaft 405 and a linkage shaft 412. The first bearing ring 402 is fixedly installed on the top of the second outer shell 401, a first rotating shaft 403 is movably installed on one side of the first bearing ring 402, a second bearing ring 404 is fixedly installed on the bottom of the second outer shell 401, a second rotating shaft 405 is movably installed on one side of the second bearing ring 404, and the linkage shaft 412 is arranged on one side of the second outer shell 401.

[0036] The first fastening roller 41 and the second fastening roller 42 further include a positioning block 414, a second fastening plate 415, a damping strip 416, a sliding groove 417, a first spring 418, a slider 419 and a limiting groove 420. The positioning block 414 is fixedly installed on the top of the first fastening plate 407, a second fastening plate 415 is movably installed on one side of the positioning block 414, the damping strip 416 is fixedly installed on the top of the first fastening plate 407, a sliding groove 417 is opened on one side of the second fastening plate 415, a first spring 418 is arranged inside the sliding groove 417, one side of the first spring 418 is fixedly connected inside the sliding groove 417, the other side of the first spring 418 is fixedly connected with a slider 419, and the slider 419 is movably connected inside the limiting groove 420. The limiting groove 420 is opened on one side of the first fastening plate 407.

[0037] The damping strip 416 is movably connected to the bottom of the second fastening plate 415, the slider 419 is movably connected to the inside of the sliding groove 417, and the slider 419 is also movably connected to one side of the first fastening plate 407.

[0038] It should be further explained that when it is necessary to fix the advertising fabric, first move the slider 419 to the left side of the sliding groove 417. At this time, the slider 419 disengages from the limiting groove 420, and at the same time, the first spring 418 is compressed. When the slider 419 completely disengages from the limiting groove 420, the second fastening plate 415 is no longer restricted by the slider 419. At this time, the second fastening plate 415 can rotate around the positioning block 414 as the axis. When the second fastening plate 415 rotates to the left until it is perpendicular to the damping strip 416, align one end of the advertising fabric with the damping strip 416, ensure that the part to be displayed does not exceed the damping strip 416 and the boundary is parallel to the damping strip 416. Then rotate the second fastening plate 415 to the right until the second fastening plate 415 fits with the first fastening plate 407. At this time, the advertising fabric is fixed between the damping strip 416 and the second fastening plate 415. At the same time, the slider 419 moves into the limiting groove 420 under the action of the first spring 418, and the second fastening plate 415 is fixed on the top of the damping strip 416. After the bottom of the advertising fabric is fixed in the same way, insert a hexagonal wrench into the hexagonal groove 413 and rotate the worm 410. At this time, the worm 410 drives the linkage shaft 412 to rotate. Since the thread directions of the worms 410 inside the first fastening roller 41 and the second fastening roller 42 are opposite, the worm wheels 409 inside the first fastening roller 41 and the second fastening roller 42 rotate in opposite directions under the drive of the worm 410, so as to tighten the advertising fabric to the upper and lower sides at the same time, completing the fixation of the advertising fabric.

[0039] As Figure 7 、 Figure 8 and Figure 9 As shown in

[0040] The buckle mechanism 3 further includes a clamping rod 306, a limiting rod 307, a second spring 308, a limiting plate 309 and a third bearing ring 310. The clamping rod 306 is movably installed on one side of the first housing 2. The top of the clamping rod 306 is fixedly connected to the limiting rod 307. The top of the clamping rod 306 is fixedly connected to the second spring 308. The top of the second spring 308 is fixedly connected to the limiting plate 309. The limiting plate 309 is fixedly installed on one side of the first housing 2. The third bearing ring 310 is symmetrically installed inside the first housing 2 with the second housing 401 as the center.

[0041] The third bearing ring 310 is movably installed on the left and right sides of the second housing 401. The limiting rod 307 is movably installed inside the limiting plate 309. The clamping rod 306 is movably connected to one side of the clamping block 305.

[0042] It should be further explained that when it is necessary to replace the advertising fabric inside the fastening mechanism 4, manually move the clamping rod 306 upward to drive the limiting rod 307 to move upward. At this time, the clamping rod 306 disengages from the clamping block 305, and the first baffle 301 and the second baffle 303 fixedly connected to the clamping block 305 can rotate around the hinge 302 as the axis. When the first baffle 301 and the second baffle 303 are opened, only need to manually flip the whole fastening mechanism 4, and the fastening mechanism 4 will rotate around the third bearing ring 310 as the axis. When the whole fastening mechanism 4 is parallel to the ground, the user can replace the advertising fabric inside the fastening mechanism 4. Compared with when the fastening mechanism 4 is erected, this way can lay the advertising fabric to be replaced flat on the surface of the backlight plate 5, without the user having to hold it all the time, freeing the user's hands.

[0043] The working principle and usage process of the present utility model: During the use of the present utility model, when it is necessary to replace the advertising fabric inside the fastening mechanism 4, manually move the clamping rod 306 upward to drive the limiting rod 307 to move upward. At this time, the clamping rod 306 disengages from the clamping block 305, and the first baffle 301 and the second baffle 303 fixedly connected to the clamping block 305 can rotate around the hinge 302 as the axis. When the first baffle 301 and the second baffle 303 are opened, only need to manually flip the whole fastening mechanism 4, and the fastening mechanism 4 will rotate around the third bearing ring 310 as the axis. When the whole fastening mechanism 4 is parallel to the ground, the user can replace the advertising fabric inside the fastening mechanism 4. Compared with when the fastening mechanism 4 is erected, this way can lay the advertising fabric to be replaced flat on the surface of the backlight plate 5, without the user having to hold it all the time, freeing the user's hands.

[0044] Next, when it is necessary to fix the advertising fabric, slide the slider 419 to the left side of the chute 417. At this time, the slider 419 disengages from the limit groove 420, and at the same time, the first spring 418 is compressed. When the slider 419 completely disengages from the limit groove 420, the second fastening plate 415 is no longer restricted by the slider 419. At this time, the second fastening plate 415 can rotate around the positioning block 414 as the axis. When the second fastening plate 415 rotates to the left until it is perpendicular to the damping strip 416, align one end of the advertising fabric with the damping strip 416, ensuring that the part to be displayed does not exceed the damping strip 416 and its boundary is parallel to the damping strip 416.

[0045] Finally, rotate the second fastening plate 415 to the right until the second fastening plate 415 fits against the first fastening plate 407. At this time, the advertising fabric is fixed between the damping strip 416 and the second fastening plate 415. At the same time, the slider 419 moves into the limit groove 420 under the action of the first spring 418, and the second fastening plate 415 can be fixed on the top of the damping strip 416. After the bottom of the advertising fabric is fixed in the same way, insert a hexagonal wrench into the hexagonal groove 413 and rotate the worm 410. At this time, the worm 410 drives the linkage shaft 412 to rotate. Since the thread directions of the worms 410 inside the first fastening roller 41 and the second fastening roller 42 are opposite, the worm wheels 409 inside the first fastening roller 41 and the second fastening roller 42 rotate in opposite directions under the drive of the worm 410, thereby stretching the advertising fabric simultaneously upwards and downwards to complete the fixation of the advertising fabric.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A billboard with replaceable content, characterized in that, It includes a base (1), a first outer shell (2) is fixedly installed on the top of the base (1), a buckle mechanism (3) is arranged on one side of the first outer shell (2), a fastening mechanism (4) is arranged on one side of the buckle mechanism (3), and a backlight plate (5) is arranged inside the first outer shell (2). The fastening mechanism (4) includes a second outer shell (401), a first fastening roller (41) and a second fastening roller (42). The first fastening roller (41) and the second fastening roller (42) are symmetrically arranged with the second outer shell (401) as the center. The second outer shell (401) is arranged inside the first outer shell (2). The first fastening roller (41) and the second fastening roller (42) both include a first bearing seat (406), a first fastening plate (407), a second bearing seat (408), a worm gear (409), a worm (410), a positioning seat (411) and a hexagonal groove (413). The first bearing seat (406) is fixedly installed on one side of the second outer shell (401), a first fastening plate (407) is movably installed on one side of the first bearing seat (406), a second bearing seat (408) is fixedly installed on the other side of the second outer shell (401), a worm gear (409) is movably installed on one side of the second bearing seat (408), a worm (410) is meshed and driven on one side of the worm gear (409), the worm (410) is movably installed on one side of the positioning seat (411), and a hexagonal groove (413) is opened at the top of the worm (410).

2. The billboard with replaceable content according to claim 1, characterized in that, The fastening mechanism (4) further includes a first bearing ring (402), a first rotating shaft (403), a second bearing ring (404), a second rotating shaft (405) and a linkage shaft (412). The first bearing ring (402) is fixedly installed on the top of the second outer shell (401), a first rotating shaft (403) is movably installed on one side of the first bearing ring (402), the second bearing ring (404) is fixedly installed on the bottom of the second outer shell (401), a second rotating shaft (405) is movably installed on one side of the second bearing ring (404), and the linkage shaft (412) is arranged on one side of the second outer shell (401).

3. The replaceable-content billboard according to claim 1, wherein The first fastening roller (41) and the second fastening roller (42) further include a positioning block (414), a second fastening plate (415), a damping strip (416), a chute (417), a first spring (418), a slider (419), and a limiting groove (420). The positioning block (414) is fixedly installed on the top of the first fastening plate (407). A second fastening plate (415) is movably installed on one side of the positioning block (414). The damping strip (416) is fixedly installed on the top of the first fastening plate (407). A chute (417) is formed on one side of the second fastening plate (415). A first spring (418) is arranged inside the chute (417). One side of the first spring (418) is fixedly connected to the inside of the chute (417), and the other side of the first spring (418) is fixedly connected to a slider (419). The slider (419) is movably connected to the inside of the limiting groove (420), and the limiting groove (420) is formed on one side of the first fastening plate (407).

4. The billboard with replaceable content according to claim 3, characterized in that, The damping strip (416) is movably connected to the bottom of the second fastening plate (415). The slider (419) is movably connected to the inside of the chute (417), and the slider (419) is also movably connected to one side of the first fastening plate (407).

5. The replaceable-content billboard according to claim 1, wherein The buckle mechanism (3) includes a first baffle (301), a hinge (302), a second baffle (303), a transparent acrylic plate (304), and a latch (305). The first baffle (301) and the second baffle (303) are movably connected to one side of the first housing (2) through the hinge (302). A transparent acrylic plate (304) is fixedly installed on one side of the second baffle (303). Latches (305) are fixedly connected to one side of both the second baffle (303) and the first baffle (301).

6. The billboard with replaceable content according to claim 5, characterized in that, The buckle mechanism (3) further includes a locking rod (306), a limiting rod (307), a second spring (308), a limiting plate (309), and a third bearing ring (310). The locking rod (306) is movably installed on one side of the first housing (2). A limiting rod (307) is fixedly connected to the top of the locking rod (306). A second spring (308) is fixedly connected to the top of the locking rod (306). A limiting plate (309) is fixedly connected to the top of the second spring (308), and the limiting plate (309) is fixedly installed on one side of the first housing (2). The third bearing ring (310) is symmetrically installed inside the first housing (2) with the second housing (401) as the center.

7. The billboard with replaceable content according to claim 6, wherein, The third bearing ring (310) is movably installed on the left and right sides of the second housing (401). The limiting rod (307) is movably installed inside the limiting plate (309), and the locking rod (306) is movably connected to one side of the latch (305).

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