A signboard which is easy to replace

Abstract

This utility model relates to the field of billboard technology, and more particularly to a replaceable billboard, comprising a base plate, sleeves, sliding rods, mounting rods, connecting shafts, a mounting frame, and a transparent plate. Two sleeves are fixedly attached to the base plate, and sliding rods are slidably arranged inside the sleeves. Mounting rods are fixedly connected to the sliding rods, and connecting shafts are rotatably arranged on both mounting rods. A mounting frame is fixedly connected between the two connecting shafts, and a transparent plate is embedded in the mounting frame. By pulling the two guide rods, the guide rods drive the locking rods and connecting plate outwards, compressing the elastic element. The locking rods then disengage from the locking slots on the mounting frame. Rotating the mounting frame then causes the mounting frame to rotate the two connecting shafts and the transparent plate to a horizontal position, lowering the position of the mounting frame. This eliminates the need for high-altitude installation of the billboard, thus facilitating its replacement and installation.

Description

Technical Field

[0001] This utility model relates to the field of billboard technology, and in particular to a billboard that is easy to replace. Background Technology

[0002] A billboard is a fixed outdoor installation used to display advertising information, brand logos, or public announcements. It is typically placed in densely populated or high-traffic areas to maximize visual exposure.

[0003] Patent CN221079545U discloses an advertising billboard. It includes: a counterweight, a first support column, a second support column, a third support column, an advertising billboard body, a solar panel, a protective frame, and a support block. The first, second, and third support columns are fixed to the counterweight. The advertising billboard body is installed between the tops of the first and third support columns. The solar panel is located above the advertising billboard body, and a display screen is located in the center of the advertising billboard body. When using this patent, the equipment is placed in the corresponding position, and the advertising billboard is installed on the first and third support columns. However, when replacing the advertising billboard, it is necessary to climb or use a ladder to reach a high place and manually disassemble the fixing parts on the advertising billboard. This poses a significant safety hazard, as there is a risk of falling from the ladder during high-altitude work.

[0004] Therefore, there is a need for a billboard that is easy to replace. Utility Model Content

[0005] To overcome the shortcomings of existing patents that require climbing or using ladders to reach a high place and manually disassembling the fixing parts of the billboard when replacing it, which poses a significant safety hazard due to the risk of falling from the ladder during high-altitude operations, this utility model provides an easy-to-replace billboard. Through components such as guide rods, elastic elements, and locking rods, the rotation restriction of the mounting frame can be released, the mounting frame can be rotated to a horizontal position, and then the billboard can be pushed into the mounting frame, thus facilitating the installation and replacement of the billboard.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: an easily replaceable billboard, comprising a base plate, sleeves, sliding rods, mounting rods, connecting shafts, a mounting frame, and a transparent plate. Two sleeves are fixedly attached to the base plate, with sliding rods slidably disposed within each sleeve. Mounting rods are fixedly connected to the sliding rods, and connecting shafts are rotatably disposed on both mounting rods. A mounting frame is fixedly connected between the two connecting shafts, and a transparent plate is embedded in the mounting frame. The billboard also includes a guide rod, elastic elements, a connecting plate, and a locking rod. Two locking slots are formed on the mounting frame. A guide rod is slidably disposed on the mounting rod, and a connecting plate is fixedly connected to the guide rod. A locking rod is fixedly connected to the connecting plate, and the locking rod passes through the mounting rod and engages with adjacent locking slots. Two elastic elements are sleeved on the guide rod, with both ends of the elastic elements connected to the guide rod and the mounting rod, respectively.

[0007] Optionally, it also includes a rotating shaft, a worm gear, a screw, a dual-shaft motor, a drive shaft, and a worm. The rotating shaft is rotatably installed inside the sleeve, and a worm gear is fixedly connected to the rotating shaft. A screw is fixedly connected to the worm gear. The sleeve and the screw are threaded together. A dual-shaft motor is mounted on the base plate. A drive shaft is mounted on each of the two output shafts of the dual-shaft motor through a coupling. The drive shaft passes through adjacent sleeves, and a worm is fixedly connected to the drive shaft. The worm meshes with an adjacent worm gear.

[0008] Optionally, it also includes mounting bases, casters, connecting brackets, friction blocks, and pedals. Four mounting bases are fixedly connected to the base plate, and casters are rotatably mounted on the mounting bases. A connecting bracket is rotatably mounted between two mounting bases located on the same side, and two friction blocks are fixedly connected to the connecting bracket. A pedal is fixedly connected to the connecting bracket.

[0009] Optionally, it also includes a protective cover, which is fixedly connected to the base plate, and the dual-axis motor is located inside the protective cover.

[0010] Optionally, it also includes protective sleeves, with two protective sleeves fixedly connected between the protective cover and the two base plates, and the drive shaft located inside the protective sleeves.

[0011] Optionally, it also includes a cover plate, which is fixedly connected between the two mounting rods.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By pulling the two guide rods, the guide rods drive the clamp rod and the connecting plate to move outward, the elastic element is compressed accordingly, the clamp rod then disengages from the slot on the mounting frame, and the mounting frame is rotated, so that the mounting frame drives the two connecting shafts and the transparent plate to rotate to a horizontal state, thereby lowering the position of the mounting frame, so that the billboard can be installed without high-altitude operations, thus facilitating the replacement and installation of the billboard.

[0013] 2. By starting the dual-axis motor, the two output shafts of the dual-axis motor drive the two transmission shafts to rotate. The transmission shafts drive the worm to rotate, and the worm meshes with the nearby worm wheel. The worm wheel then drives the rotating shaft and the screw to rotate. The worm drives the sleeve to move upward, and the sleeve drives the mounting rod, the mounting frame and the components above it to move. This allows the height of the mounting frame and the billboard inside to be adjusted for easier viewing.

[0014] 3. By pushing the mounting rod, the casters rotate, driving the entire equipment to move. After moving to the appropriate position, step on the pedal to rotate, causing the connecting frame and two friction blocks to rotate. The friction blocks contact the casters, causing them to rub against the casters and stop rotating, thus achieving the effect of rapid deployment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional sectional view of the sliding rod, mounting rod, and mounting bracket of this utility model.

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This is a three-dimensional sectional view of the connecting shaft, mounting bracket, and transparent plate of this utility model.

[0019] Figure 5 This is a three-dimensional sectional view of the base plate, sleeve, and screw of this utility model.

[0020] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle.

[0021] Figure 7 This is an exploded view of the sleeve, sliding rod, and screw of this utility model.

[0022] Figure 8 This is a three-dimensional structural diagram of the base plate, connecting frame, and friction block of this utility model.

[0023] The components in the attached diagram are labeled as follows: 1-Base plate, 2-Sleeve, 3-Sliding rod, 4-Mounting rod, 401-Connecting shaft, 5-Mounting bracket, 6-Transparent plate, 7-Cover plate, 8-Slot, 9-Guide rod, 10-Elastic element, 11-Connecting plate, 12-Clamping rod, 13-Rotating shaft, 14-Worm gear, 15-Screw, 16-Dual-axis motor, 17-Drive shaft, 18-Worm gear, 19-Mounting base, 20-Cast wheel, 21-Connecting bracket, 22-Friction block, 23-Pedal, 24-Protective cover, 25-Protective sleeve. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0025] Example 1: An easy-to-replace billboard, see [link / reference] Figures 1-8As shown, the device includes a base plate 1, a sleeve 2, a sliding rod 3, a mounting rod 4, a connecting shaft 401, a mounting frame 5, and a transparent plate 6. The base plate 1 has sleeves 2 symmetrically welded to its top. A sliding rod 3 is slidably mounted inside the sleeve 2. A mounting rod 4 is fixedly connected to the top of the sliding rod 3. A connecting shaft 401 is rotatably mounted on each of the two mounting rods 4. A mounting frame 5 is welded between the two connecting shafts 401. A transparent plate 6 is embedded in the front of the mounting frame 5. The device also includes a guide rod 9, elastic elements 10, a connecting plate 11, and a locking rod 12. The mounting frame 5 has slots 8 on both the left and right sides at its lower part. A guide rod 9 is slidably mounted on the lower part of the mounting rod 4. A connecting plate 11 is fixedly connected to the middle of the guide rod 9. A locking rod 12 is fixedly connected to the connecting plate 11. The locking rod 12 passes through the mounting rod 4 and engages with adjacent slots 8. Two elastic elements 10 are fitted onto the guide rod 9, with both ends of the elastic elements 10 connected to the guide rod 9 and the mounting rod 4, respectively.

[0026] See Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, it also includes a cover plate 7, and the cover plate 7 is fixedly connected between the top ends of the two mounting rods 4.

[0027] When installing the billboard, first push the equipment to the appropriate position. Then, pull the two guide rods 9, causing the guide rods 9 to move the clamping rod 12 and connecting plate 11 outward. The elastic element 10 is compressed accordingly, and the clamping rod 12 disengages from the slot 8 on the mounting frame 5. Then rotate the mounting frame 5, causing the mounting frame 5 to rotate the two connecting shafts 401 and the transparent plate 6 to a horizontal position, lowering the position of the mounting frame 5. This eliminates the need for high-altitude work to install the billboard, making it easier to replace and install the billboard. Then, insert the billboard into the mounting frame 5. The billboard can be viewed through the transparent plate 6, and the cover plate 7 prevents rainwater from falling into the mounting frame 5. After installation, rotate the mounting frame 5 back to its original position, so that the clamping rod 12 and the slot 8 are on the same horizontal line. Then release the guide rods 9, causing the elastic element 10 to rebound and move the guide rods 9, connecting plate 11, and clamping rod 12 inward to reset, so that the clamping rod 12 re-clamps into the slot 8 of the mounting frame 5, thereby fixing the mounting frame 5 and preventing the mounting frame 5 from rotating.

[0028] Example 2: Based on Example 1, refer to Figure 5 and Figure 6As shown, it also includes a rotating shaft 13, a worm gear 14, a screw 15, a dual-axis motor 16, a transmission shaft 17, and a worm 18. The rotating shaft 13 is rotatably installed at the bottom of the sleeve 2. The worm gear 14 is fixedly connected to the top of the rotating shaft 13. The screw 15 is fixedly connected to the top of the worm gear 14. The sleeve 2 and the screw 15 are threadedly connected. The dual-axis motor 16 is installed in the middle of the base plate 1 by bolt connection. The two output shafts of the dual-axis motor 16 are each equipped with a transmission shaft 17 by coupling. The transmission shaft 17 passes through the adjacent sleeve 2. The end of the transmission shaft 17 is fixedly connected to the worm 18, which meshes with the adjacent worm gear 14.

[0029] See Figure 1 As shown, it also includes a protective cover 24. The protective cover 24 is fixedly connected to the base plate 1, and the dual-axis motor 16 is located inside the protective cover 24, thereby protecting the dual-axis motor 16.

[0030] See Figure 1 As shown, it also includes a protective sleeve 25. The protective cover 24 is fixedly connected to the two base plates 1. The drive shaft 17 is located inside the protective sleeve 25.

[0031] Once installation is complete, start the dual-axis motor 16. The two output shafts of the dual-axis motor 16 drive the two transmission shafts 17 to rotate. The transmission shafts 17 drive the worm gear 18 to rotate. The worm gear 18 meshes with the nearby worm wheel 14. The worm wheel 14 then drives the rotating shaft 13 and the screw 15 to rotate. The worm gear 18 drives the sleeve 2 to move upward. The sleeve 2 drives the mounting rod 4 and the mounting frame 5 and the components above them to move. This allows adjustment of the height of the mounting frame 5 and the billboard inside it, making it easier to view. After adjusting to the appropriate height, turn off the dual-axis motor 16.

[0032] See Figure 1 and Figure 8 As shown, it also includes a mounting base 19, casters 20, a connecting frame 21, friction blocks 22, and a pedal 23. Mounting bases 19 are symmetrically fixed to the left and right sides of the bottom of the base plate 1. Casters 20 are rotatably mounted on the mounting bases 19. A connecting frame 21 is rotatably mounted between the two mounting bases 19 located on the same side. Friction blocks 22 are fixedly connected to both the left and right sides of the connecting frame 21. The friction blocks 22 can contact the casters 20 when rotating. A pedal 23 is fixedly connected to the middle of the connecting frame 21.

[0033] Before installing the billboard, push the mounting rod 4 to rotate the caster 20 and move the entire equipment. After moving to the appropriate position, step on the pedal 23 to rotate it, which in turn rotates the connecting frame 21 and the two friction blocks 22. The friction blocks 22 contact the caster 20, causing the friction blocks 22 to rub against the caster 20 and stop it from rotating, thus achieving the effect of rapid deployment.

[0034] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A replaceable billboard, comprising a base plate (1), sleeves (2), sliding rods (3), mounting rods (4), connecting shafts (401), mounting brackets (5), and a transparent plate (6), wherein two sleeves (2) are fixedly connected to the base plate (1), sliding rods (3) are slidably arranged inside the sleeves (2), mounting rods (4) are fixedly connected to the sliding rods (3), connecting shafts (401) are rotatably arranged on both mounting rods (4), mounting brackets (5) are fixedly connected between the two connecting shafts (401), and a transparent plate (6) is embedded in the mounting brackets (5), characterized in that, It also includes a guide rod (9), an elastic element (10), a connecting plate (11) and a locking rod (12). The mounting bracket (5) has two slots (8). The mounting rod (4) is slidably provided with a guide rod (9). The guide rod (9) is fixedly connected to the connecting plate (11). The connecting plate (11) is fixedly connected to the locking rod (12). The locking rod (12) passes through the mounting rod (4) and is inserted into the adjacent slots (8). The guide rod (9) is fitted with two elastic elements (10). The two ends of the elastic elements (10) are connected to the guide rod (9) and the mounting rod (4) respectively.

2. A replaceable billboard according to claim 1, characterized in that, It also includes a rotating shaft (13), a worm gear (14), a screw (15), a dual-shaft motor (16), a transmission shaft (17), and a worm (18). The rotating shaft (13) is rotatably installed inside the sleeve (2). The worm gear (14) is fixedly connected to the rotating shaft (13). The screw (15) is fixedly connected to the worm gear (14). The sleeve (2) is threadedly connected to the screw (15). The dual-shaft motor (16) is installed on the base plate (1). The two output shafts of the dual-shaft motor (16) are each equipped with a transmission shaft (17) through a coupling. The transmission shaft (17) passes through the adjacent sleeve (2). The worm (18) is fixedly connected to the transmission shaft (17). The worm (18) meshes with the adjacent worm gear (14).

3. A replaceable billboard according to claim 2, characterized in that, It also includes mounting bases (19), casters (20), connecting brackets (21), friction blocks (22) and pedals (23). Four mounting bases (19) are fixedly connected to the base plate (1). Casters (20) are rotatably mounted on the mounting bases (19). A connecting bracket (21) is rotatably mounted between two mounting bases (19) located on the same side. Two friction blocks (22) are fixedly connected to the connecting bracket (21). A pedal (23) is fixedly connected to the connecting bracket (21).

4. A replaceable billboard according to claim 3, characterized in that, It also includes a protective cover (24), which is fixedly connected to the base plate (1), and the dual-axis motor (16) is located inside the protective cover (24).

5. A replaceable billboard according to claim 4, characterized in that, It also includes a protective sleeve (25), and the protective cover (24) is fixedly connected to the two base plates (1) by two protective sleeves (25), and the drive shaft (17) is located inside the protective sleeve (25).

6. A replaceable billboard according to claim 5, characterized in that, It also includes a cover plate (7), and the cover plate (7) is fixedly connected between the two mounting rods (4).

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