Highway sign post frame with adjustable height

Abstract

The utility model relates to the technical field of sign post frames, and discloses a height-adjustable road sign post frame which comprises a supporting pipe, a sign frame arranged on one side of the supporting pipe and an adjusting assembly arranged in the supporting pipe and used for adjusting the height of the sign frame. Through mutual cooperative use of a supporting pipe, a card frame, a moving plate, a roller supporting frame, a first steel wire rope and a moving bin, the effect of adjusting the height of the card frame can be achieved, the rotating resistance of a winding drum is reduced through a counterweight balance system, and under cooperation of the roller supporting frame and the first steel wire rope, the moving plate and the card frame reach the target height; by means of the speed reduction and self-locking structure, other operations are not needed when the worm rotates, multi-person cooperative operation is not needed, manpower is saved, meanwhile, safety is guaranteed through the self-locking structure, safety is guaranteed by screwing a bolt into a threaded groove to fix the worm gear, and the worm gear is practical.

Description

Technical Field

[0001] This utility model relates to the field of signpost technology, and in particular to an adjustable height highway signpost. Background Technology

[0002] For road traffic safety, it is generally necessary to install road traffic safety signs at designated locations to remind and warn people on site. When installing road traffic signs, bolts are usually used to fix the signs to the posts. However, in some places where it is inconvenient to operate the signs from a height, such as dangerous areas like bridges, it is time-consuming, laborious and inconvenient to install or replace the signs later. In such cases, adjustable sign poles are used.

[0003] An existing type of easy-to-install highway traffic safety sign (Announcement No.: CN222294764U) has at least the following drawbacks:

[0004] In the aforementioned patent, stepless height adjustment is achieved through the design of slide grooves and rollers, which improves maintenance efficiency compared to traditional fixed signs. The mechanical locking of the locking gears and the cooperation of spring preload can withstand continuous loads from strong winds. However, the signs are only installed in front of the supporting steel frame, which cannot meet the requirements for side installation. At the same time, the manual rotation of the turntable lacks a deceleration mechanism, which can only raise and lower some small signs. Furthermore, when operating the lifting mechanism, the turntable and locking mechanism must be operated simultaneously, which poses a safety hazard for single-person operation. Therefore, it is necessary to propose an adjustable height highway signpost to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable height highway signpost.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable-height highway signpost includes a support tube with a sign holder on one side. It also includes an adjustment assembly disposed inside the support tube for adjusting the height of the sign holder. The adjustment assembly includes two movable plates, both movably fitted inside the support tube. A roller support frame is fixedly mounted on the top surface of the support tube. Two first steel wire ropes are fixedly mounted on the top surface of the movable plates, resting on rollers of the roller support frame. The bottom surface of the first steel wire ropes is fixedly mounted with… The device includes a movable compartment. A second steel wire rope is fixedly installed on the bottom surface of the movable plate located at the bottom. First circular through holes are respectively opened on both sides of the support tube. A winding drum is movably sleeved on the inner circular wall of the first circular through hole. A rectangular through hole is opened on one side of the support tube. The second steel wire rope is wound around the outer circular wall of the winding drum and passes through the rectangular through hole to be fixedly installed with the movable compartment. A worm gear is fixedly sleeved on the outer circular wall of the winding drum. A fixing frame is fixedly installed on one side of the support tube. A worm is movably sleeved inside the fixing frame. The worm meshes with the worm gear.

[0008] As a further embodiment of this utility model, a guide wheel is fixedly installed on one side of the support tube, and the second steel wire rope is laid on the guide wheel.

[0009] As a further embodiment of this utility model, two limiting posts are fixedly installed on the top surface of the support tube, and two first limiting holes are opened on the top surface of the mobile compartment. The first limiting holes are movably connected with the limiting posts, and two limiting plates are fixedly installed on one side of the support tube. The limiting plates are fixedly installed with the limiting posts.

[0010] As a further embodiment of this utility model, a second limiting hole is provided on the top surface of the limiting plate, and the first steel wire rope is movably connected to the second limiting hole.

[0011] As a further embodiment of this utility model, a protective cover is fixedly installed on the top surface of the support tube, and a guide plate is fixedly installed on one side of the protective cover.

[0012] As a further embodiment of this utility model, the movable plate is movably connected to the connecting hole of the card holder, a number of nuts are threaded on the outside of the movable plate, a number of rectangular grooves are opened on the outside of the movable plate, and a number of rolling wheels are fixedly installed inside the rectangular grooves.

[0013] As a further embodiment of this utility model, two threaded columns are fixedly installed on one side of the support tube, and a protective chamber is provided on one side of the support tube. The connecting hole of the protective chamber is movably sleeved with the threaded columns, and a nut is threadedly connected to the outer circular wall surface of the threaded columns.

[0014] As a further embodiment of this utility model, a threaded hole is provided on one side of the fixing frame, and a plurality of threaded grooves are provided on one side of the worm gear. Bolts are threadedly connected to the inner circular wall of the threaded grooves, and the bolts are threadedly connected to the threaded hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By using the support pipe, card holder, moving plate, roller support frame, first wire rope, and moving compartment in coordination, the height of the card holder can be adjusted. The counterweight balancing system reduces the rotational resistance of the winding drum. With the cooperation of the roller support frame and the first wire rope, the moving plate and card holder reach the target height. The deceleration and self-locking structure allows for operation without other steps, eliminating the need for multiple operators and saving manpower. The self-locking structure ensures safety and enables side installation. Finally, the worm gear is secured by bolts screwed into the threaded groove, ensuring safety and making it quite practical.

[0017] 2. The first wire rope is limited by the cooperation of the limiting plate and the second limiting hole to prevent it from falling off the roller support frame. The protective cover and the guide plate protect the top of the support tube and reduce rainwater erosion. The rolling wheel reduces the frictional resistance when the moving plate moves. The limiting post cooperates with the first limiting hole to limit the movement trajectory of the moving chamber and avoid shaking. The protective chamber provides protection for the worm gear and worm, improving the durability of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an adjustable-height highway signpost frame proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the support tube structure of an adjustable height highway signpost according to the present invention.

[0020] Figure 3 This is a schematic diagram of the sign frame structure of an adjustable height highway sign pole proposed in this utility model;

[0021] Figure 4 for Figure 2 A partial structural diagram of A in the middle;

[0022] Figure 5 for Figure 2 A schematic diagram of the partial structure of B in the diagram;

[0023] Figure 6 This is a schematic diagram of the limiting post structure of an adjustable height highway signpost frame proposed in this utility model;

[0024] Figure 7This is a schematic diagram of the limiting plate structure of an adjustable height highway signpost frame proposed in this utility model;

[0025] Figure 8 This is a schematic diagram of the rolling wheel structure of an adjustable height highway signpost frame proposed in this utility model.

[0026] In the diagram: 1. Support pipe; 2. Card holder; 3. Moving plate; 4. Roller support frame; 5. First wire rope; 6. Moving compartment; 7. Rewinding drum; 8. Second wire rope; 9. Worm gear; 10. Fixed frame; 11. Worm; 12. Limiting post; 13. First limiting hole; 14. Guide wheel; 15. Protective cover; 16. Guide plate; 17. Limiting plate; 18. Second limiting hole; 19. Threaded post; 20. Protective compartment; 21. Nut; 22. Rolling wheel; 23. Bolt; 24. Threaded groove. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Reference Figures 1-8An adjustable-height highway signpost includes a support tube 1, with a sign holder 2 mounted on one side of the support tube 1. It also includes an adjustment assembly located inside the support tube 1 for adjusting the height of the sign holder 2. The adjustment assembly includes two movable plates 3, both movably fitted inside the support tube 1. A roller support frame 4 is fixedly mounted on the top surface of the support tube 1. Two first steel wire ropes 5 are fixedly mounted on the top surface of the movable plates 3, resting on the rollers of the roller support frame 4. A movable support frame 4 is fixedly mounted on the bottom surface of the first steel wire ropes 5. The moving chamber 6 has a second steel wire rope 8 fixedly installed on the bottom surface of the movable plate 3 located at the bottom. The support pipe 1 has a first circular through hole on each side. The inner circular wall of the first circular through hole is movably sleeved with a winding drum 7. The support pipe 1 has a rectangular through hole on one side. The second steel wire rope 8 is wound around the outer circular wall of the winding drum 7 and passes through the rectangular through hole and is fixedly installed with the moving chamber 6. The outer circular wall of the winding drum 7 is fixedly sleeved with a worm gear 9. The support pipe 1 has a fixed frame 10 fixedly installed on one side. The fixed frame 10 has a worm 11 movably sleeved inside, and the worm 11 meshes with the worm gear 9.

[0031] In use, unscrew nut 21 and remove protective chamber 20 from one side of support tube 1. Unscrew bolt 23 from inside threaded groove 24 to release the worm gear 9. Use an electric wrench to turn worm 11 (its end is pre-designed as a hexagonal prism structure). The rotating worm 11 drives worm gear 9 and winding drum 7 to rotate, winding and unwinding the second wire rope 8 (part of the second wire rope 8 is wrapped around the outside of winding drum 7). The second wire rope 8 pulls moving plate 3, which, supported by rolling wheel 22, moves card holder 2 downward. At the same time, moving chamber 6 and counterweight move upward. The counterweight balance system reduces the rotational resistance of winding drum 7. With the cooperation of roller support frame 4 and first wire rope 5, moving plate 3 and card holder 2 reach the target height. The deceleration and self-locking structure allow only worm 11 to be rotated. The self-locking structure ensures safety, and the use of an electric wrench saves manpower.

[0032] In this embodiment, a guide wheel 14 is fixedly installed on one side of the support pipe 1, and the second steel wire rope 8 is laid on the guide wheel 14. Two limiting posts 12 are fixedly installed on the top surface of the support pipe 1. Two first limiting holes 13 are opened on the top surface of the movable compartment 6. The first limiting holes 13 are movably connected to the limiting posts 12. Two limiting plates 17 are fixedly installed on one side of the support pipe 1. The limiting plates 17 are fixedly installed to the limiting posts 12. A second limiting hole 18 is opened on the top surface of the limiting plate 17. The first steel wire rope 5 is movably connected to the second limiting hole 18.

[0033] In use, the limiting post 12 and the first limiting hole 13 cooperate to limit the movement trajectory of the moving chamber 6 and prevent shaking.

[0034] In this embodiment, a protective cover 15 is fixedly installed on the top surface of the support pipe 1, a guide plate 16 is fixedly installed on one side of the protective cover 15, the movable plate 3 is movably connected to the connecting hole of the card holder 2, several nuts are threaded to the outside of the movable plate 3, several rectangular grooves are opened on the outside of the movable plate 3, several rolling wheels 22 are fixedly installed inside the rectangular grooves, two threaded columns 19 are fixedly installed on one side of the support pipe 1, a protective chamber 20 is provided on one side of the support pipe 1, the connecting hole of the protective chamber 20 is movably connected to the threaded column 19, a nut 21 is threaded to the outer circular wall of the threaded column 19, a threaded hole is opened on one side of the fixed frame 10, several threaded grooves 24 are opened on one side of the worm gear 9, a bolt 23 is threaded to the inner circular wall of the threaded groove 24, and the bolt 23 is threaded to the threaded hole.

[0035] In use, the first wire rope 5 is limited by the cooperation of the limiting plate 17 and the second limiting hole 18 to prevent it from falling off the roller support frame 4. The protective cover 15 and the guide plate 16 form a protective layer on the top of the support pipe 1 to reduce rainwater erosion. The rolling wheel 22 reduces the frictional resistance when the moving plate 3 moves. The protective chamber 20 provides protection for the worm gear 9 and the worm 11 to improve the durability of the equipment.

[0036] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0037] When the user needs to adjust the height of the card holder 2 via the support tube 1, a counterweight (with a weight close to the overall weight of the card holder 2 and the moving plate 3, measured during production or installation) is placed inside the movable compartment 6. Nut 21 is loosened, and the protective compartment 20 is removed from one side of the support tube 1. Bolt 23 is unscrewed from the threaded groove 24 to release the worm gear 9. An electric wrench is used to turn the worm 11 (its end is pre-designed as a hexagonal prism). The rotating worm 11 drives the worm gear 9 and the winding drum 7 to rotate, winding and unwinding the second wire rope 8 (part of the second wire rope 8 is wrapped around the outside of the winding drum 7). The second wire rope 8 pulls the moving plate 3, causing the card holder 2 to move downwards under the support of the rolling wheel 22. Simultaneously, the movable compartment 6 and the counterweight move upwards. The counterweight balancing system reduces the rotational resistance of the winding drum 7. The roller support frame 4 and the first wire rope 5... With the cooperation of the moving plate 3 and the card holder 2, the moving plate 3 and the card holder 2 reach the target height. The deceleration and self-locking structure allows only the worm gear 11 to be rotated. The self-locking structure ensures safety. The use of an electric wrench saves manpower. The bolt 23 is screwed into the threaded groove 24 to fix the worm wheel 9, and the adjustment is completed. The reset operation is performed in reverse order of the above process, thereby achieving the effect of adjusting the height of the card holder 2. The rotational resistance of the winding drum 7 is reduced by the counterweight balance system. With the cooperation of the roller support frame 4 and the first wire rope 5, the moving plate 3 and the card holder 2 reach the target height. The deceleration and self-locking structure allow only the worm gear 11 to be rotated without other operations. No multiple people are required to operate, saving manpower. At the same time, the self-locking structure ensures safety and realizes side installation. Finally, the bolt 23 is screwed into the threaded groove 24 to fix the worm wheel 9, ensuring safety. It is quite practical.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A height-adjustable highway signpost bracket, comprising a support tube (1), wherein a sign holder (2) is provided on one side of the support tube (1), characterized in that, Also includes: An adjustment assembly is disposed inside the support tube (1) for adjusting the height of the card holder (2). The adjustment assembly includes two movable plates (3), both of which are movably sleeved inside the support tube (1). A roller support frame (4) is fixedly installed on the top surface of the support tube (1). Two first steel wire ropes (5) are fixedly installed on the top surface of the movable plates (3). The first steel wire ropes (5) rest on the rollers of the roller support frame (4). A movable compartment (6) is fixedly installed on the bottom surface of the first steel wire ropes (5). A movable compartment (6) is fixedly installed on the bottom surface of the movable plates (3) located at the bottom. The second wire rope (8) has a first circular through hole on each side of the support tube (1). A winding drum (7) is movably sleeved on the inner wall of the first circular through hole. A rectangular through hole is opened on one side of the support tube (1). The second wire rope (8) is wound around the outer wall of the winding drum (7) and passes through the rectangular through hole to be fixedly installed with the moving chamber (6). A worm gear (9) is fixedly sleeved on the outer wall of the winding drum (7). A fixing frame (10) is fixedly installed on one side of the support tube (1). A worm (11) is movably sleeved inside the fixing frame (10). The worm (11) meshes with the worm gear (9).

2. The adjustable height highway signpost according to claim 1, characterized in that, A guide wheel (14) is fixedly installed on one side of the support pipe (1), and the second steel wire rope (8) rests on the guide wheel (14).

3. The adjustable height highway signpost according to claim 1, characterized in that, Two limiting posts (12) are fixedly installed on the top surface of the support tube (1), and two first limiting holes (13) are opened on the top surface of the mobile compartment (6). The first limiting holes (13) are movably connected to the limiting posts (12). Two limiting plates (17) are fixedly installed on one side of the support tube (1), and the limiting plates (17) are fixedly installed to the limiting posts (12).

4. The adjustable height highway signpost according to claim 3, characterized in that, The top surface of the limiting plate (17) is provided with a second limiting hole (18), and the first wire rope (5) is movably connected to the second limiting hole (18).

5. The adjustable height highway signpost according to claim 1, characterized in that, A protective cover (15) is fixedly installed on the top surface of the support tube (1), and a guide plate (16) is fixedly installed on one side of the protective cover (15).

6. The adjustable height highway signpost according to claim 1, characterized in that, The movable plate (3) is movably connected to the connecting hole of the card holder (2). The movable plate (3) is externally threaded with several nuts. The movable plate (3) has several rectangular grooves on its exterior. Several rolling wheels (22) are fixedly installed inside the rectangular grooves.

7. The adjustable height highway signpost according to claim 1, characterized in that, Two threaded columns (19) are fixedly installed on one side of the support tube (1). A protective chamber (20) is provided on one side of the support tube (1). The connecting hole of the protective chamber (20) is movably connected to the threaded column (19). A nut (21) is threadedly connected to the outer circular wall of the threaded column (19).

8. The adjustable height highway signpost according to claim 1, characterized in that, The fixing frame (10) has a threaded hole on one side, and the worm gear (9) has several threaded grooves (24) on one side. The inner circular wall of the threaded groove (24) is threaded with a bolt (23), and the bolt (23) is threadedly connected to the threaded hole.

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