Simple supporting device of advertising board

Abstract

The utility model belongs to the technical field of advertising boards, and particularly relates to a simple supporting device of an advertising board, which comprises a round rod, rotating supports are rotatably mounted at two ends of the round rod, each rotating support comprises two rotating legs which are rotatably connected, a sliding groove is formed in each rotating leg, and a sliding rod is slidably mounted in each sliding groove. The bottom end of the sliding rod penetrates through the bottom of the sliding groove, extends to the outside and is rotationally provided with supporting legs, and suction cups are symmetrically and fixedly installed at the bottoms of the supporting legs. The four limiting assemblies are located in the four rotating legs correspondingly and used for limiting the four sliding rods correspondingly; according to the novel advertising board, when a passerby accidentally touches the advertising board body, the advertising board body is not prone to turning over, meanwhile, the height of the rotating leg can be adjusted by a person according to needs, and the advertising board body can be conveniently replaced by the person.

Description

Technical Field

[0001] The utility model belongs to the technical field of billboards, and in particular relates to a simple supporting device for billboards. Background Art

[0002] The role of billboards is to attract people's attention, convey advertising information, and promote the sales of products or services. The design and production of billboards need to take into account factors such as the target audience, advertising content, and display venue in order to achieve the best publicity effect.

[0003] For example, a Chinese patent with announcement number CN207587325U discloses a simple billboard support device, including a support frame and a billboard. The support frame includes vertical diagonal braces and transverse braces. Two groups of vertical diagonal braces are provided, and each group of vertical diagonal braces is provided with two vertical diagonal braces. The two vertical diagonal braces are symmetrically distributed about the center of the transverse braces, and the two groups of transverse braces are symmetrically distributed about the center of the billboard. The top and bottom of each vertical diagonal brace are provided with a steel sleeve, and the steel sleeve on the rod body of the vertical diagonal brace cooperates with the steel sleeve at the end of the transverse brace. The transverse brace is cut off from one-half of the rod body and connected by a hinge-type hinge. The hinge-type hinge is welded to the lower surface of the transverse brace, and fixing holes are provided at the upper and lower thirds of the billboard. The utility model has the characteristics of reasonable design, simple structure, easy processing and use, reliable construction quality, and easy movement and transportation. It can be customized and processed in batches and used as shown in the attached drawings.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: when the billboard is placed in a shopping mall, due to the tile floor in the mall, when a passerby accidentally touches the billboard, the billboard is prone to overturning. In addition, the supporting legs of the billboard cannot be adjusted, and the height of the billboard cannot be adjusted according to the needs of people. In view of this, we propose a simple supporting device for billboards. Utility Model Content

[0006] The purpose of the utility model is to provide a simple supporting device for a billboard to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a simple supporting device for a billboard, comprising:

[0008] A round rod, both ends of the round rod are rotatably mounted with a rotating bracket, the rotating bracket includes two rotating legs, and the two rotating legs are rotatably connected, a sliding groove is provided in the rotating leg, a sliding rod is slidably mounted in the sliding groove, the bottom end of the sliding rod passes through the bottom of the sliding groove and extends to the outside and is rotatably mounted with a supporting foot, and a suction cup is symmetrically fixedly mounted on the bottom of the supporting foot;

[0009] Four limiting components, the four limiting components are respectively located in the four rotating legs and are used to limit the four sliding rods respectively;

[0010] Two rubber pads, the two rubber pads are symmetrically fixedly mounted on the round rod, the same mounting plate is rotatably mounted on the two rubber pads, a card slot is opened on one side of the mounting plate, a card block is card-engaged in the card slot, and a billboard body is fixedly mounted on one side of the card block;

[0011] A fixing component is located in the mounting plate and is used to fix the card block.

[0012] In the technical solution, four limit assemblies are provided, and the four limit assemblies can release the limits of the four sliding rods respectively, and then the personnel can pull the sliding rods out of the sliding grooves. When the sliding rods are pulled out to the appropriate positions, the limit assemblies can limit the sliding rods, ensuring that the personnel can adjust the height of the rotating legs as needed, thereby adjusting the height of the billboard body. Then the personnel place the four rotating legs on the tile floor, and the supporting feet will rotate until the bottom of the supporting feet is parallel to the ground. Then the personnel can press the four rotating legs, and the four rotating legs will squeeze the corresponding two suction cups, so that the suction cups will be adsorbed on the tile floor, ensuring that when passers-by accidentally touch the billboard body, the billboard body is not easy to overturn;

[0013] Through the set fixing component, when personnel need to replace the billboard body, they can first release the card block through the fixing component, and then the personnel can pull the billboard body and drive the card block to move, and can take the card block out of the card slot, and then the personnel can insert the card block on the new billboard body into the card slot, and then fix the card block through the fixing component, so as to ensure that the billboard body can be replaced easily and that the personnel do not need to use tools when replacing the billboard body. Then the personnel can rotate the billboard body, and the billboard body drives the mounting plate to rotate on the round rod. Under the action of the friction force of the two rubber pads, the billboard body can stay at any angle on the round rod, so that the personnel can adjust the rotation angle of the billboard body easily.

[0014] In the above technical solution, further, the limit assembly includes:

[0015] Two circular grooves, both of which are opened in the rotating legs and are respectively located on both sides of the sliding rod, a sliding rod is slidably installed in the circular groove, one end of the two sliding rods respectively penetrates one side of the two circular grooves and is fixedly installed with the same limit block, and the limit block is located in the rotating leg, the other ends of the two sliding rods respectively penetrate the other side of the two circular grooves and extend to the outside, and the other ends of the two sliding rods are fixedly installed with the same pressing plate, a spring is sleeved on the sliding rod and located in the circular groove, a plurality of limit grooves are opened on one side of the sliding rod, and one end of the limit block extends into one of the limit grooves.

[0016] In this technical solution, the pressing plate is pressed, and the pressing plate moves, driving the two sliding rods to slide in the corresponding circular grooves. The movement of the two sliding rods will drive the limit block to move, and at the same time, the two sliding rods will respectively drive the two springs to extend. When one end of the limit block moves out of one of the limit grooves, the limit block can release the limit on the sliding rod, and then the personnel can pull the sliding rod out of the sliding groove. When the sliding rod is pulled out to the appropriate position, release the pressing plate, and under the action of the rebound force of the two springs, the two springs will respectively drive the two sliding rods to move, and the two sliding rods will drive the limit block to move until one end of the limit block is inserted into the corresponding limit groove, and the limit block can limit the sliding rod, ensuring that the personnel can adjust the height of the rotating leg and the rotating bracket as needed, thereby adjusting the height of the billboard body.

[0017] In the above technical solution, further, the sliding rod is slidably connected to the rotating leg, the limiting block is slidably connected to the rotating leg, one end of the limiting block is plugged into the limiting groove, and the two ends of the spring are tightly welded to the sliding rod and the inner wall of the circular groove respectively.

[0018] In this technical solution, it is ensured that the slide bar can slide normally in the rotating leg, that the limit block can slide normally in the rotating leg, that one end of the limit block can be inserted into the limit groove, and that the structure of the spring 1 is stable.

[0019] In the above technical solution, further, the fixing component includes:

[0020] A rectangular groove, the rectangular groove is opened in the mounting plate and is located on one side of the card slot, a limit strip is slidably installed in the rectangular groove, one side of the limit strip passes through one side of the rectangular groove and extends into the card slot, and the bottom of the limit strip is against the top of the card block, and the other side of the limit strip is fixedly installed with a plurality of springs fixed to the inner wall of the rectangular groove;

[0021] A U-shaped rod is arranged on one side of the mounting plate, and both ends of the U-shaped rod penetrate one side of the mounting plate, extend into the rectangular groove and are fixed to the limiting strip.

[0022] In this technical solution, when personnel need to replace the billboard body, they can first pull the U-shaped rod, and the U-shaped rod drives the limit bar to move in the rectangular groove. At the same time, the movement of the limit bar will squeeze the multiple springs to contract. When the bottom of the limit bar moves out from the top of the card block, the limit bar can release the card block. Then the personnel can pull the billboard body and drive the card block to move, and can take the card block out of the card slot. At the same time, under the action of the rebound force of the multiple springs, the springs will drive the limit bar to reset, and then the personnel can replace the new billboard. The card block on the main body is inserted into the card slot. When the card block moves downward in the card slot, it will squeeze the limit strip to move into the rectangular slot. The limit strip will squeeze several springs 2 to shrink. When the card block is fully inserted into the card slot, under the action of the rebound force of several springs 2, several springs 2 will squeeze the limit strip to move outward in the rectangular slot until the bottom of the limit strip rests on the top of the card block. At this time, the limit strip can fix the card block, ensuring that it is convenient for personnel to replace the billboard body and ensuring that personnel do not need to use tools when replacing the billboard body.

[0023] In the above technical solution, further, the limit strip is slidably connected to the mounting plate, and the U-shaped rod is slidably connected to the mounting plate.

[0024] In this technical solution, it is ensured that the limit bar can slide normally in the mounting plate, that the bottom of the limit bar can be stuck on the top of the clamping block, and that the U-shaped rod can slide normally in the mounting plate.

[0025] In the above technical solution, further, the limit strip is slidably connected to the mounting plate, and the U-shaped rod is slidably connected to the mounting plate.

[0026] In this technical solution, it is ensured that the card block will not fall off from the card slot, the sliding rod will not fall off from the sliding slot, and the card block will squeeze the limit bar to move into the rectangular slot when it moves downward in the card slot, thereby ensuring the structural stability of the limit bar.

[0027] In the above technical solution, further, the limit block, the pressing plate and the sliding rod are an integrally formed structure.

[0028] In this technical solution, the structural stability of the limit block, the pressing plate and the two sliding rods is ensured.

[0029] The beneficial effects of the utility model are:

[0030] 1. The simple supporting device of the billboard has four limit assemblies, which can release the limits of the four sliding rods respectively. Then the personnel can pull the sliding rods out of the sliding grooves. When the sliding rods are pulled out to the appropriate position, the limit assemblies can limit the sliding rods, ensuring that the personnel can adjust the height of the rotating legs as needed, thereby adjusting the height of the billboard body. Then the personnel place the four rotating legs on the tile floor. At this time, the supporting feet will rotate until the bottom of the supporting feet is parallel to the ground. After that, the personnel can press the four rotating legs, and the four rotating legs will squeeze the corresponding two suction cups, so that the suction cups will be adsorbed on the tile floor, ensuring that the billboard body is not easy to overturn when passers-by accidentally touch the billboard body.

[0031] 2. The simple supporting device of the billboard has a fixed component. When personnel need to replace the billboard body, they can first release the card block through the fixed component, and then they can pull the billboard body and drive the card block to move, and take the card block out of the card slot. Then the personnel can insert the card block on the new billboard body into the card slot, and then fix the card block through the fixed component, so as to ensure that the billboard body can be replaced easily and that the personnel do not need to use tools when replacing the billboard body. Then the personnel can rotate the billboard body, and the billboard body drives the mounting plate to rotate on the round rod. Under the action of the friction force of the two rubber pads, the billboard body can stay at any angle on the round rod, so that the personnel can adjust the rotation angle of the billboard body easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is one of the overall structural diagrams of the utility model;

[0033] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0034] Figure 3 It is a schematic diagram of the detailed internal structure of the rotating leg in the utility model;

[0035] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating leg in the utility model;

[0036] Figure 5 It is a schematic diagram of the regional structure of the limit block in the utility model;

[0037] Figure 6 For this utility model Figure 5 The enlarged structural diagram at A in the middle;

[0038] Figure 7 It is a schematic diagram of the structure of the card block and the billboard explosion in the utility model;

[0039] Figure 8 It is a schematic diagram of the cross-sectional structure of the mounting plate in the utility model;

[0040] Fig. 9 For this utility model Figure 8 Enlarged structural diagram of point B in the middle

[0041] Fig.10 It is a structural schematic diagram of the round rod in the utility model.

[0042] The symbols in the figure are:

[0043] 1. Round rod; 2. Rotating leg; 3. Rotating bracket; 4. Sliding groove; 5. Sliding rod; 6. Support foot; 7. Suction cup; 8. Limiting groove; 9. Round groove; 10. Sliding rod; 11. Limiting block; 12. Pressing plate; 13. Spring 1; 14. Mounting plate; 15. Card slot; 16. Card block; 17. Billboard body; 18. Rectangular groove; 19. Limiting strip; 20. U-shaped rod; 21. Spring 2; 22. Rubber pad. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0045] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0047] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0048] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0049] Embodiment 1:

[0050] See also Figure 1 - Fig.10 As shown, this embodiment provides a simple supporting device for a billboard, comprising:

[0051] A round rod 1, both ends of the round rod 1 are rotatably mounted with a rotating bracket 3, the rotating bracket 3 includes two rotating legs 2, and the two rotating legs 2 are rotatably connected, a sliding groove 4 is opened in the rotating leg 2, a sliding rod 5 is slidably mounted in the sliding groove 4, the bottom end of the sliding rod 5 passes through the bottom of the sliding groove 4 and extends to the outside and is rotatably mounted with a supporting foot 6, and a suction cup 7 is symmetrically fixedly mounted on the bottom of the supporting foot 6;

[0052] Four limiting components, which are respectively located in the four rotating legs 2 and are used to limit the four sliding rods 5 respectively;

[0053] Two rubber pads 22, the two rubber pads 22 are symmetrically fixedly mounted on the round rod 1, and the same mounting plate 14 is rotatably mounted on the two rubber pads 22, a card slot 15 is opened on one side of the mounting plate 14, a card block 16 is card-engaged in the card slot 15, and a billboard body 17 is fixedly mounted on one side of the card block 16;

[0054] The fixing component is located in the mounting plate 14 and is used to fix the clamping block 16 .

[0055] Among them, through the four limit assemblies set, the four limit assemblies can respectively release the limits of the four sliding rods 5, and then the personnel can pull the sliding rod 5 out of the sliding groove 4. When the sliding rod 5 is pulled out to a suitable position, the limit assembly can limit the sliding rod 5, ensuring that the personnel can adjust the height of the rotating legs 2 as needed, thereby adjusting the height of the billboard body 17. Then the personnel place the four rotating legs 2 on the tile floor, and the supporting feet 6 will rotate until the bottom of the supporting feet 6 is parallel to the ground. Then the personnel can press the four rotating legs 2, and the four rotating legs 2 will squeeze the corresponding two suction cups 7, so that the suction cups 7 will be adsorbed on the tile floor, ensuring that when passers-by accidentally touch the billboard body 17, the billboard body 17 is not easy to overturn;

[0056] By means of the set fixing component, when personnel need to replace the billboard body 17, they can first release the fixing of the block 16 through the fixing component, and then the personnel can pull the billboard body 17 and drive the block 16 to move, and can take the block 16 out of the slot 15, and then the personnel can insert the block 16 on the new billboard body 17 into the slot 15, and then fix the block 16 through the fixing component, so as to ensure that the billboard body 17 can be replaced easily by personnel, and that the personnel do not need to use tools when replacing the billboard body 17, and then the personnel can rotate the billboard body 17, and the billboard body 17 drives the mounting plate 14 to rotate on the round rod 1, and under the action of the friction force of the two rubber pads 22, the billboard body 17 can stay at any angle on the round rod 1, so that the personnel can adjust the rotation angle of the billboard body 17 conveniently.

[0057] Embodiment 2:

[0058] This embodiment provides a simple supporting device for a billboard. In addition to the technical solution of the above embodiment, it also has the following technical features. The limiting component includes:

[0059] Two circular grooves 9, both circular grooves 9 are opened in the rotating leg 2 and are respectively located on both sides of the sliding rod 5, a sliding rod 10 is slidably installed in the circular groove 9, one end of the two sliding rods 10 respectively penetrates one side of the two circular grooves 9 and is fixedly installed with the same limit block 11, and the limit block 11 is located in the rotating leg 2, the other ends of the two sliding rods 10 respectively penetrate the other side of the two circular grooves 9 and extend to the outside, and the other ends of the two sliding rods 10 are fixedly installed with the same pressing plate 12, a spring 13 is sleeved on the sliding rod 10 and located in the circular groove 9, a plurality of limit grooves 8 are opened on one side of the sliding rod 5, and one end of the limit block 11 extends into one of the limit grooves 8.

[0060] When the two ends of the limit block 11 are moved out of one of the limit grooves 8, the limit block 11 can release the limit of the sliding rod 5, and then the personnel can pull the sliding rod 5 out of the sliding groove 4. When the sliding rod 5 is pulled out to a suitable position, the pressing plate 12 is released, and under the action of the rebound force of the two springs 13, the two springs 13 can respectively drive the two sliding rods 10 to move, and the two sliding rods 10 can drive the limit block 11 to move until one end of the limit block 11 is inserted into the corresponding limit groove 8, and the limit block 11 can limit the sliding rod 5, ensuring that the personnel can adjust the height of the rotating leg 2 and the rotating bracket 3 as needed, thereby adjusting the height of the billboard body 17.

[0061] Embodiment 3:

[0062] The present embodiment provides a simple support device for a billboard. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the sliding rod 10 is slidably connected to the rotating leg 2, the limiting block 11 is slidably connected to the rotating leg 2, one end of the limiting block 11 is plugged into the limiting groove 8, and the two ends of the spring 13 are tightly welded to the sliding rod 10 and the inner wall of the circular groove 9 respectively.

[0063] Among them, it is ensured that the slide rod 10 can slide normally in the rotating leg 2, that the limit block 11 can slide normally in the rotating leg 2, that one end of the limit block 11 can be inserted into the limit groove 8, and that the structure of the spring 13 is stable.

[0064] Embodiment 4:

[0065] This embodiment provides a simple supporting device for a billboard. In addition to the technical solutions of the above embodiments, it also has the following technical features. The fixing component includes:

[0066] A rectangular groove 18 is provided in the mounting plate 14 and is located on one side of the card slot 15. A limit strip 19 is slidably installed in the rectangular groove 18. One side of the limit strip 19 passes through one side of the rectangular groove 18 and extends into the card slot 15. The bottom of the limit strip 19 abuts against the top of the card block 16. A plurality of springs 21 fixed to the inner wall of the rectangular groove 18 are fixedly installed on the other side of the limit strip 19.

[0067] The U-shaped rod 20 is disposed on one side of the mounting plate 14 . Both ends of the U-shaped rod 20 penetrate through one side of the mounting plate 14 and extend into the rectangular groove 18 and are fixed to the limiting strip 19 .

[0068] When the personnel need to replace the billboard body 17, they can first pull the U-shaped rod 20, and the U-shaped rod 20 drives the limit bar 19 to move in the rectangular groove 18. At the same time, the movement of the limit bar 19 will squeeze the plurality of springs 21 to contract. When the bottom of the limit bar 19 moves out from the top of the card block 16, the limit bar 19 can release the card block 16. Then the personnel can pull the billboard body 17 and drive the card block 16 to move, and the card block 16 can be taken out of the card slot 15. At the same time, under the action of the rebound force of the plurality of springs 21, the spring 21 will drive the limit bar 19 to reset, and then the personnel can replace the billboard body 17 with the new one. The card block 16 is inserted into the card slot 15. The card block 16 moves downward in the card slot 15 to squeeze the limit strip 19 to move into the rectangular slot 18. The limit strip 19 squeezes the plurality of springs 21 to shrink. When the card block 16 is fully inserted into the card slot 15, under the action of the rebound force of the plurality of springs 21, the plurality of springs 21 squeeze the limit strip 19 to move outward in the rectangular slot 18 until the bottom of the limit strip 19 rests against the top of the card block 16. At this time, the limit strip 19 can fix the card block 16, ensuring that it is convenient for personnel to replace the billboard body 17, and ensuring that personnel do not need to use tools when replacing the billboard body 17.

[0069] Embodiment 5:

[0070] This embodiment provides a simple supporting device for a billboard. In addition to the technical solutions of the above embodiments, it also has the following technical features: the limit strip 19 is slidably connected to the mounting plate 14, and the U-shaped rod 20 is slidably connected to the mounting plate 14.

[0071] Among them, it is ensured that the limiting strip 19 can slide normally in the mounting plate 14 , that the bottom of the limiting strip 19 can be stuck on the top of the block 16 , and that the U-shaped rod 20 can slide normally in the mounting plate 14 .

[0072] Embodiment 6:

[0073] This embodiment provides a simple supporting device for a billboard. In addition to the technical solutions of the above embodiments, it also has the following technical features: the cross-sections of the card slot 15 and the card block 16 are both T-shaped, the cross-section of the sliding rod 5 is T-shaped, and the top surface of the limit strip 19 is an inclined structure.

[0074] Among them, it is ensured that the block 16 will not fall off from the slot 15, the sliding rod 5 will not fall off from the sliding slot 4, and the block 16 will squeeze the limit strip 19 to move into the rectangular slot 18 when moving downward in the slot 15, thereby ensuring the structural stability of the limit strip 19.

[0075] Embodiment 7:

[0076] This embodiment provides a simple supporting device for a billboard. In addition to the technical solutions of the above embodiments, it also has the following technical features: the limit block 11, the pressing plate 12 and the sliding rod 10 are an integrally formed structure.

[0077] The structures of the limit block 11 , the pressing plate 12 and the two slide bars 10 are ensured to be stable.

[0078] It is worth noting that when placing the billboard body 17, the tile floor where it is placed needs to be wiped clean first to ensure that there is no dust on the floor where the billboard body 17 is placed and to ensure that the billboard body 17 can be adsorbed on the floor.

[0079] Working principle: when in use, the four pressing plates 12 can be pressed respectively first. The movement of the pressing plates 12 drives the two sliding bars 10 to slide in the corresponding circular grooves 9. The movement of the two sliding bars 10 will drive the limit block 11 to move away from the sliding bar 5. At the same time, the two sliding bars 10 will respectively drive the two springs 13 to contract. When one end of the limit block 11 moves out of one of the limit grooves 8, the limit block 11 can release the limit on the sliding bar 5. Then the personnel can pull the sliding bar 5 out of the sliding groove 4. When the sliding bar 5 is pulled out to a suitable position, the pressing plate 12 is released. Under the action of the rebound force of the two springs 13, the two springs 13 will respectively drive the two sliding bars 10 to move. The rod 10 will drive the limit block 11 to approach the sliding rod 5 until one end of the limit block 11 is inserted into the corresponding limit groove 8. The limit block 11 can limit the sliding rod 5, ensuring that the personnel can adjust the height of the rotating leg 2 as needed, thereby adjusting the height of the billboard body 17. Then the personnel will place the four rotating legs 2 on the tile floor. At this time, the supporting feet 6 will rotate until the bottom of the supporting feet 6 is parallel to the ground. Then the personnel can press the four rotating legs 2, and the four rotating legs 2 will squeeze the corresponding two suction cups 7, so that the suction cups 7 will be adsorbed on the tile floor, ensuring that when passers-by accidentally touch the billboard body 17, the billboard body 17 is not easy to overturn;

[0080] When the personnel need to replace the billboard body 17, they can first pull the U-shaped rod 20, and the U-shaped rod 20 drives the limit strip 19 to move in the rectangular groove 18. At the same time, the movement of the limit strip 19 will squeeze the plurality of springs 21 to contract. When the bottom of the limit strip 19 moves out from the top of the card block 16, the limit strip 19 can release the fixation of the card block 16. Then the personnel can pull the billboard body 17 and drive the card block 16 to move, and can take the card block 16 out of the card slot 15. At the same time, under the action of the rebound force of the plurality of springs 21, the spring 21 will drive the limit strip 19 to reset. Then the personnel can insert the card block 16 on the new billboard body 17 into the card slot 15. The downward movement of the card block 16 in the card slot 15 will squeeze the limit strip 19 to move into the rectangular groove 18, and the limit strip 19 will The plurality of springs 21 are squeezed to contract, and when the card block 16 is fully inserted into the card slot 15, under the action of the rebound force of the plurality of springs 21, the plurality of springs 21 will squeeze the limit strip 19 to move outward in the rectangular slot 18 until the bottom of the limit strip 19 is against the top of the card block 16. At this time, the limit strip 19 can fix the card block 16, ensuring that it is convenient for personnel to replace the billboard body 17, and ensuring that personnel do not need to use tools when replacing the billboard body 17. Subsequently, the personnel can rotate the billboard body 17, and the billboard body 17 drives the mounting plate 14 to rotate on the round rod 1. Under the action of the friction force of the two rubber pads 22, the billboard body 17 can stay at any angle on the round rod 1, which is convenient for personnel to adjust the rotation angle of the billboard body 17.

[0081] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the inspiration of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A simple supporting device for a billboard, characterized in that: include: A round rod (1), both ends of the round rod (1) are rotatably mounted with a rotating bracket (3), the rotating bracket (3) comprises two rotating legs (2), and the two rotating legs (2) are rotatably connected, a sliding groove (4) is provided in the rotating leg (2), a sliding rod (5) is slidably mounted in the sliding groove (4), the bottom end of the sliding rod (5) passes through the bottom of the sliding groove (4) and extends to the outside and is rotatably mounted with a supporting foot (6), and a suction cup (7) is symmetrically fixedly mounted on the bottom of the supporting foot (6); Four limiting assemblies, the four limiting assemblies are respectively located in the four rotating legs (2) and are used to limit the four sliding rods (5) respectively; Two rubber pads (22), the two rubber pads (22) are symmetrically fixedly mounted on the round rod (1), the same mounting plate (14) is rotatably mounted on the two rubber pads (22), a slot (15) is provided on one side of the mounting plate (14), a block (16) is mounted in the slot (15), and a billboard body (17) is fixedly mounted on one side of the block (16); A fixing component is located in the mounting plate (14) and is used to fix the clamping block (16).

2. A simple supporting device for a billboard according to claim 1, characterized in that: The limiting component comprises: Two circular grooves (9), both of which are provided in the rotating leg (2) and are respectively located on both sides of the sliding rod (5), a sliding rod (10) is slidably installed in the circular groove (9), one end of the two sliding rods (10) respectively penetrates one side of the two circular grooves (9) and is fixedly installed with a same limiting block (11), and the limiting block (11) is located in the rotating leg (2), the other ends of the two sliding rods (10) respectively penetrate the other side of the two circular grooves (9) and extend to the outside, and the other ends of the two sliding rods (10) are fixedly installed with a same pressing plate (12), a spring (13) is sleeved on the sliding rod (10) and is located in the circular groove (9), a plurality of limiting grooves (8) are provided on one side of the sliding rod (5), and one end of the limiting block (11) extends into one of the limiting grooves (8).

3. The simple supporting device for a billboard according to claim 2, characterized in that: The slide bar (10) is slidably connected to the rotating leg (2), the limit block (11) is slidably connected to the rotating leg (2), one end of the limit block (11) is plugged into the limit groove (8), and the two ends of the spring 1 (13) are tightly welded to the slide bar 1 (0) and the inner wall of the circular groove (9) respectively.

4. The simple supporting device for a billboard according to claim 1, characterized in that: The fixing assembly comprises: A rectangular groove (18), the rectangular groove (18) is opened in the mounting plate (14) and is located on one side of the clamping groove (15), a limit strip (19) is slidably installed in the rectangular groove (18), one side of the limit strip (19) passes through one side of the rectangular groove (18) and extends into the clamping groove (15), and the bottom of the limit strip (19) abuts against the top of the clamping block (16), and a plurality of springs (21) fixed to the inner wall of the rectangular groove (18) are fixedly installed on the other side of the limit strip (19); A U-shaped rod (20) is arranged on one side of the mounting plate (14), and both ends of the U-shaped rod (20) penetrate through one side of the mounting plate (14), extend into the rectangular groove (18), and are fixed to the limiting strip (19).

5. The simple supporting device for a billboard according to claim 4, characterized in that: The limiting strip (19) is slidably connected to the mounting plate (14), and the U-shaped rod (20) is slidably connected to the mounting plate (14).

6. The simple supporting device for a billboard according to claim 4, characterized in that: The cross section of the sliding rod (5) is in a T-shaped structure, and the top surface of the limiting strip (19) is in an inclined structure.

7. The simple supporting device for a billboard according to claim 2, characterized in that: The limit block (11), the pressing plate (12) and the sliding rod (10) are an integrally formed structure.

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