Foldable campus bulletin board

Abstract

The utility model discloses a foldable campus bulletin board, and relates to the technical field of bulletin boards, the foldable campus bulletin board comprises three display boards arranged at equal intervals and a plurality of supports used for supporting the display boards to be away from the ground, and the supports are provided with adjusting assemblies used for controlling the display boards to be unfolded or folded in a combined mode; the adjusting assembly comprises a mounting base detachably connected to the upper portion of the support, a first connecting rod and a second connecting rod are coaxially and rotationally mounted on one side of the top face of the mounting base, the end of the first connecting rod and the end of the second connecting rod are jointly hinged to three crossed connecting rods, the three crossed connecting rods are hinged to one another, and the other end of the first connecting rod is hinged to the other end of the second connecting rod. A third connecting rod is rotationally connected to the end, farthest from the first connecting rod and the second connecting rod, of the crossed connecting rod, a sliding seat is slidably mounted in the mounting seat, and the third connecting rod is rotationally connected to the sliding seat. The bulletin board can be quickly built in the using process, and a user can conveniently use the bulletin board.

Description

Technical Field

[0001] The utility model belongs to the technical field of propaganda columns, and in particular relates to a foldable campus propaganda column. Background Art

[0002] The existing campus cultural propaganda columns are large and cannot be folded, which makes them inconvenient to move and store, and they are not waterproof or dustproof. Therefore, how to make the campus cultural propaganda columns foldable, convenient to move and store, and waterproof or dustproof is a problem to be solved by technicians in this technical field.

[0003] The existing patent (application number is 201920807967.9) proposes a foldable campus cultural propaganda column, including a propaganda column main frame, a propaganda column middle frame, a propaganda main board, a base mechanism and a fixing mechanism. There are two propaganda column main frames, one propaganda column middle frame, three propaganda main boards, two base mechanisms and one fixing mechanism. The two sides of the propaganda column middle frame can be fixedly connected with a propaganda column main frame respectively, each propaganda main board can be inserted and fixedly connected in the propaganda column middle frame, and each propaganda main board can be inserted and fixedly connected in a propaganda column main frame, each propaganda column main frame can be erected on a base mechanism, each base mechanism can be inserted and clamped on a propaganda column main frame, and the fixing mechanism can be inserted and fixedly connected to two base mechanisms.

[0004] However, in the process of unfolding and displaying or folding and storing, the billboards need to be operated one by one, which makes the billboard as a whole inconvenient to quickly build, the structure is complex, and it is time-consuming and labor-intensive to transport. Due to the slow construction speed, more time and manpower may be required to complete the folding and unfolding construction work, which may affect the use efficiency and user experience of the billboard.

[0005] In view of this, this application is hereby filed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a foldable campus publicity column to achieve the desired purpose.

[0007] In order to solve the above technical problems, the utility model provides a foldable campus publicity board, comprising: three display boards arranged at equal distances and a plurality of brackets for supporting the display boards away from the ground, wherein the brackets are combined with adjustment components for controlling the display boards to be unfolded or folded;

[0008] The adjustment assembly includes a mounting seat detachably connected to the upper part of the bracket, a first link and a second link are coaxially rotatably mounted on one side of the top surface of the mounting seat, a cross link is hingedly connected to the ends of the first link and the second link, three cross links are provided, the three cross links are hinged to each other, a third link is rotatably connected to the end of the cross link farthest from the first link and the second link, a sliding seat is slidably mounted inside the mounting seat, the third link is rotatably connected to the sliding seat, a Z-shaped axis is rotatably mounted on the middle part of the cross link, and the display board is fixedly connected to the top of the Z-shaped axis.

[0009] Furthermore, the outer wall of the mounting seat is provided with limit seats at equal distances and the same number as the brackets, the bottom surface of the limit seat is integrally formed with a plug-in block, and the bracket is provided with a slot for inserting the plug-in block.

[0010] Furthermore, a limit gear is fixedly installed on the top surface of the second connecting rod, and the limit gear, the second connecting rod and the first connecting rod are coaxially arranged. A pull plate is slidably connected to the top wall of the mounting seat, and a limit rack is fixedly installed on one side of the pull plate, and the limit rack is meshingly connected with the limit gear.

[0011] Furthermore, a movable slot is provided on the top surface of the mounting seat, the pull plate is slidably connected inside the movable slot, a support spring is fixedly installed inside the movable slot, and one end of the support spring away from the inner wall of the movable slot is fixedly connected to the side wall of the pull plate.

[0012] Furthermore, an L-shaped rod is symmetrically installed on the bottom surface of the mounting seat for rotation, a limit rod and a connecting plate are rotatably installed between the two L-shaped rods, the limit rod and the connecting plate are symmetrically arranged in parallel, a straight slot is opened on the connecting plate, and the bottom end of the Z-shaped axis is slidably inserted into the inside of the straight slot.

[0013] Furthermore, a through slot is provided on the bottom wall of the mounting seat, and the Z-shaped shaft passes through and is slidably connected inside the through slot.

[0014] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0015] 1. In the utility model, by toggling the second connecting rod to rotate on the mounting seat, the cross connecting rod can push the sliding seat to slide inside the mounting seat. When the cross connecting rod moves on the mounting seat, it drives the Z-axis and the display board to move synchronously, so as to realize the lateral movement and unfolding of the display board. Then, by toggling the L-shaped rod to rotate, the connecting plate connected thereto can be driven to move forward along the bottom surface of the mounting seat. During the movement, the connecting plate can drive the Z-axis to drive the display board to flip, so that the display board can be in a horizontal state when unfolded and used, so that the publicity column can be quickly built during use, which is convenient for users to use.

[0016] 2. In the utility model, the pull plate is pushed by the elastic force of the supporting spring to drive the limit rack to engage with the limit gear. The engagement of the limit gear and the limit rack can lock the rotation of the second connecting rod, thereby fixing the position of the display board, avoiding position deviation during the promotional display process, and improving the stability of the publicity column when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the adjustment component and the publicity board in the front view direction of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the adjustment component and the publicity board in the upward direction of the present invention;

[0021] Figure 4 It is a partial structural schematic diagram of the adjustment component in the utility model;

[0022] Figure 5 for Figure 1 A magnified view of the structure at center.

[0023] Numbers in the figure: 1. bracket; 2. display board; 3. adjustment assembly; 301. mounting seat; 302. first connecting rod; 303. second connecting rod; 304. cross connecting rod; 305. sliding seat; 306. third connecting rod; 307. Z-axis; 308. limit seat; 309. plug-in block; 310. limit gear; 311. pull plate; 312. limit rack; 313. support spring; 314. L-shaped rod; 315. connecting plate; 316. limit rod.

[0024] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figures 1 to 5 As shown, the utility model provides a foldable campus propaganda column.

[0029] Specifically, by Figure 1-5 The invention provides a display device, comprising: three display boards 2 arranged at equal distances and a plurality of brackets 1 for supporting the display boards 2 away from the ground, wherein the brackets 1 are combinedly mounted with adjustment components 3 for controlling the display boards 2 to be unfolded or folded;

[0030] The adjustment assembly 3 includes a mounting seat 301 detachably connected to the upper part of the bracket 1, a first link 302 and a second link 303 are coaxially rotatably mounted on one side of the top surface of the mounting seat 301, a cross link 304 is hingedly connected to the ends of the first link 302 and the second link 303, three cross links 304 are provided, the three cross links 304 are hinged to each other, the end of the cross link 304 farthest from the first link 302 and the second link 303 is rotatably connected to the third link 306, a slide seat 305 is slidably mounted inside the mounting seat 301, the third link 306 is rotatably connected to the slide seat 305, a Z-shaped shaft 307 is rotatably mounted in the middle of the cross link 304, and the display board 2 is fixedly connected to the top of the Z-shaped shaft 307;

[0031] An L-shaped rod 314 is symmetrically mounted on the bottom surface of the mounting seat 301, and a limit rod 316 and a connecting plate 315 are rotatably mounted between the two L-shaped rods 314. The limit rod 316 and the connecting plate 315 are symmetrically arranged in parallel. A straight slot is opened on the connecting plate 315, and the bottom end of the Z-shaped shaft 307 is slidably inserted into the inside of the straight slot.

[0032] During use, by toggling the second connecting rod 303 to rotate on the mounting seat 301, the cross connecting rod 304 can push the sliding seat 305 to slide inside the mounting seat 301. When the cross connecting rod 304 moves on the mounting seat 301, it drives the Z-axis 307 and the display board 2 to move synchronously, so as to realize the lateral movement and expansion of the display board 2. Then, by toggling the L-shaped rod 314 to rotate, the connecting plate 315 connected thereto can be driven to move forward along the bottom surface of the mounting seat 301. During the movement, the connecting plate 315 can drive the Z-axis 307 to drive the display board 2 to flip, so that the display board 2 can be in a horizontal state when it is expanded and used, so that the publicity column can be quickly built during use, which is convenient for users to use.

[0033] Furthermore, as a specific implementation of the utility model, the utility model provides a foldable campus publicity column.

[0034] Specifically, Figure 3 It is shown that the outer wall of the mounting seat 301 is provided with limit seats 308 of the same number as the bracket 1 at equal distances, and the bottom surface of the limit seat 308 is integrally formed with a plug-in block 309, and the bracket 1 is provided with a slot for the plug-in block 309 to be inserted.

[0035] In the utility model, the limiting seat 308 is provided to facilitate the combined connection of the adjustment component 3 and the bracket 1 .

[0036] Furthermore, as another specific implementation of the utility model, the utility model provides a foldable campus publicity board.

[0037] Specifically, Figure 1 and Figure 5 It is shown that a limit gear 310 is fixedly installed on the top surface of the second connecting rod 303, and the limit gear 310, the second connecting rod 303 and the first connecting rod 302 are coaxially arranged. A pull plate 311 is slidably connected to the top wall of the mounting seat 301, and a limit rack 312 is fixedly installed on one side of the pull plate 311, and the limit rack 312 is meshedly connected with the limit gear 310;

[0038] A movable slot is provided on the top surface of the mounting seat 301 , and the pull plate 311 is slidably connected inside the movable slot. A support spring 313 is fixedly installed inside the movable slot, and one end of the support spring 313 away from the inner wall of the movable slot is fixedly connected to the side wall of the pull plate 311 .

[0039] In the utility model, the pull plate 311 is pushed by the elastic force of the support spring 313 to drive the limit rack 312 to engage with the limit gear 310. The engagement of the limit gear 310 with the limit rack 312 can lock the rotation of the second connecting rod 303, and then the position of the display board 2 can be fixed, avoiding position deviation during the promotional display process and improving the stability of the propaganda column when in use.

[0040] Furthermore, as a specific implementation of the utility model, the utility model provides a foldable campus publicity column.

[0041] Specifically, Figure 3 It is shown that a through slot is provided on the bottom wall of the mounting seat 301, and the Z-shaped shaft 307 passes through and is slidably connected inside the through slot.

[0042] In the present invention, the Z-shaped shaft 307 can be inserted into the interior of the connecting plate 315 by means of the through slot.

[0043] Working principle: by toggling the second connecting rod 303 to rotate on the mounting seat 301, the cross connecting rod 304 can push the sliding seat 305 to slide inside the mounting seat 301. When the cross connecting rod 304 moves on the mounting seat 301, it drives the Z-axis 307 and the display board 2 to move synchronously, so as to realize the lateral movement and unfolding of the display board 2. Then, by toggling the L-shaped rod 314 to rotate, the connecting plate 315 connected thereto can be driven to move forward along the bottom surface of the mounting seat 301. During the movement, the connecting plate 315 can drive the Z-axis 307 to drive the display board 2 to flip, so that the display board 2 can be in a horizontal state when unfolded and used, so that the publicity column can be quickly built during use, which is convenient for users to use.

[0044] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A foldable campus bulletin board, comprising: Three display boards (2) arranged at equal distances and a plurality of brackets (1) for supporting the display boards (2) away from the ground, wherein the brackets (1) are combinedly mounted with adjustment components (3) for controlling the display boards (2) to be unfolded or folded; The adjustment assembly (3) is characterized in that the adjustment assembly (3) comprises a mounting seat (301) detachably connected to the upper part of the bracket (1); a first connecting rod (302) and a second connecting rod (303) are coaxially rotatably mounted on one side of the top surface of the mounting seat (301); a cross connecting rod (304) is hingedly connected to the ends of the first connecting rod (302) and the second connecting rod (303); three cross connecting rods (304) are provided, and the three cross connecting rods (304) are hingedly connected to each other; the end of the cross connecting rod (304) farthest from the first connecting rod (302) and the second connecting rod (303) is rotatably connected to the third connecting rod (306); a sliding seat (305) is slidably mounted inside the mounting seat (301); the third connecting rod (306) is rotatably connected to the sliding seat (305); a Z-shaped shaft (307) is rotatably mounted in the middle of the cross connecting rod (304); and the display board (2) is fixedly connected to the top of the Z-shaped shaft (307).

2. A foldable campus bulletin board according to claim 1, characterized in that: The outer wall of the mounting seat (301) is provided with limit seats (308) at equal distances and the same number as the bracket (1); a plug-in block (309) is integrally formed on the bottom surface of the limit seat (308); and a slot for inserting the plug-in block (309) is provided on the bracket (1).

3. A foldable campus bulletin board according to claim 1, characterized in that: A limit gear (310) is fixedly mounted on the top surface of the second connecting rod (303); the limit gear (310), the second connecting rod (303) and the first connecting rod (302) are coaxially arranged; a pull plate (311) is slidably connected to the top wall of the mounting seat (301); a limit rack (312) is fixedly mounted on one side of the pull plate (311); and the limit rack (312) is meshingly connected to the limit gear (310).

4. A foldable campus bulletin board according to claim 3, characterized in that: A movable notch is provided on the top surface of the mounting seat (301), the pull plate (311) is slidably connected inside the movable notch, a support spring (313) is fixedly installed inside the movable notch, and one end of the support spring (313) away from the inner wall of the movable notch is fixedly connected to the side wall of the pull plate (311).

5. The foldable campus bulletin board according to claim 1, characterized in that: An L-shaped rod (314) is symmetrically mounted on the bottom surface of the mounting seat (301), and a limit rod (316) and a connecting plate (315) are rotatably mounted between the two L-shaped rods (314). The limit rod (316) and the connecting plate (315) are arranged in parallel and symmetrically. A straight slot is provided on the connecting plate (315), and the bottom end of the Z-shaped shaft (307) is slidably inserted into the straight slot.

6. A foldable campus bulletin board according to claim 5, characterized in that: A through slot is provided on the bottom wall of the mounting seat (301), and the Z-shaped shaft (307) passes through and is slidably connected inside the through slot.

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