A multi-purpose signboard support

Abstract

This utility model relates to a multi-purpose sign holder, comprising a tower sleeve inserted within a frame. The frame has a handle and wheels at its bottom. A sign hanger is attached to the tower sleeve. The tower sleeve is a multi-section square tube sleeve structure with evenly distributed vertical pin holes running through its sides, and multiple locking pins are inserted therein. Each section of the tower sleeve has a lifting buckle on its top outer periphery, which can be pulled to drive the tower sleeve to rise and fall step by step, and the height is locked in conjunction with the locking pins. The side wall of the tower sleeve has multiple hollowed-out locking positions vertically, and a locking mechanism is provided at the bottom of the tower sleeve, which can lock instantly as the tower sleeve rises and falls to prevent slippage. Through flexible and efficient height adjustment, stable and reliable locking mechanism, convenient movement function and reasonable design structure, it significantly improves the efficiency and safety of highway sign management, fully meets the diverse needs of modern traffic management, and has broad application prospects and promotional value.

Description

Technical Field

[0001] This utility model belongs to the technical field of signage brackets, and specifically relates to a multi-purpose signage bracket. Background Technology

[0002] In highway traffic management, signs serve as a crucial medium for conveying traffic information, making their height adjustment function particularly important. However, existing sign brackets have numerous shortcomings in height adjustment, severely impacting the efficiency and safety of traffic management.

[0003] First, the height of highway signs needs frequent adjustment based on actual needs. For example, during road construction or traffic accident handling, the sign height needs to be quickly adjusted to adapt to different working environments. However, traditional sign brackets are inefficient in height adjustment, often requiring manual operation, which is cumbersome and time-consuming. This inefficient adjustment method cannot meet the need for rapid response in the face of emergencies, potentially leading to traffic congestion or safety accidents. Second, existing sign brackets lack flexibility in height adjustment. Many traditional brackets use a fixed design with a limited height adjustment range, making it difficult to meet diverse needs in different scenarios. For example, during road maintenance or traffic management, signs may need to be operated at a lower height, but traditional bracket designs often cannot achieve precise height adjustment, limiting the sign's usability. This lack of flexibility not only affects the efficiency of traffic management but also increases additional equipment investment costs. Furthermore, existing height adjustment mechanisms also present many inconveniences in daily maintenance and management. Due to the complexity and time-consuming adjustment process, traditional bracket designs increase the maintenance costs for highway management departments. Meanwhile, due to the lack of intelligent adjustment functions, traditional supports are difficult to operate at night or in inclement weather, further reducing work efficiency.

[0004] In summary, existing highway sign brackets suffer from inefficiencies, lack of flexibility, poor safety, and high maintenance costs in height adjustment. These problems not only affect the efficiency of traffic management but also increase safety hazards and operating costs. Therefore, there is an urgent need for a height adjustment solution that can achieve rapid, flexible, safe, and easy maintenance to meet the diverse needs of highway traffic management. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a multi-purpose sign holder, the specific technical solution of which is as follows:

[0006] This utility model provides a multi-purpose sign holder, including a tower sleeve inserted inside a frame. The frame has a handle and wheels at its bottom. A sign hanger is attached to the tower sleeve. The tower sleeve is a multi-section square tube sleeve structure with evenly arranged vertical pin holes through its side and multiple locking pins inserted therein. Each section of the tower sleeve has a lifting buckle on its top outer periphery, which can be pulled to drive the tower sleeve to rise and fall step by step, and the height is locked in conjunction with the locking pins. The side wall of the tower sleeve has multiple hollow locking positions vertically arranged, and a locking mechanism is provided at the bottom of the tower sleeve, which can lock instantly as the tower sleeve rises and falls to prevent slippage.

[0007] As a preferred technical solution of this utility model, the locking mechanism includes a hinge seat attached to the bottom side wall of the tower sleeve, on which a ⊥-shaped rotatable locking plate is provided. A locking strip is vertically inserted into the locking plate. A wrench is provided at the rear end of the locking plate, and an eagle beak buckle adapted to the locking position is embedded at the front end of the locking strip. The wrench can be pulled as the tower sleeve is raised or lowered to drive the eagle beak buckle to engage with the locking position and lock immediately.

[0008] As a preferred technical solution of this utility model, the back of the locking strip is provided with a toothed rack, and the locking plate has a matching pattern, which can be used to efficiently fix the locking strip with the wrench and avoid stripping the teeth.

[0009] As a preferred technical solution of this utility model, the eagle beak buckle is a barbed hook structure, which is fixed to the locking strip by a hinge. The eagle beak buckle can rotate along the hinge point and can be quickly embedded into the locking position for self-locking as the tower sleeve rises and falls.

[0010] As a preferred technical solution of this utility model, the frame is a four-corner frame structure with a shelf inside. The bottom of the frame is narrow at the front and wide at the back, and there are travel wheels at the front and rear forks, which can be moved by the handle.

[0011] As a preferred technical solution of this utility model, the frame is provided with an erecting mechanism, which includes an erecting cylinder mounted on the shelf, an L-shaped erecting handle inserted on its side, and supports passing through the four corners of the frame via oil pipes. The supports can be raised and lowered instantly by the erecting cylinder driven by the erecting handle.

[0012] As a preferred technical solution of this utility model, a return spring is obliquely supported between the hinge seat and the locking plate, which can push the eagle beak hook on the locking bar to fasten the side wall of the tower sleeve.

[0013] The beneficial effects of this utility model are:

[0014] I. Flexible and Efficient Height Adjustment: Traditional signpost brackets suffer from low efficiency and complex operation in height adjustment. This invention, however, utilizes a multi-section square tube sleeve structure, making height adjustment flexible and efficient. Pin holes are evenly distributed on the sides of the sleeve, and height is locked using locking pins. Operators can quickly adjust the height by simply pulling the sleeve up and down step by step using the lifting buckle. This design not only simplifies the adjustment process but also significantly improves operational efficiency, meeting the diverse needs of highway signposts in different scenarios.

[0015] II. High Stability and Safety: Traditional supports often suffer from insecure locking and a high risk of slippage during height adjustment. This invention addresses these issues by incorporating multiple perforated locking positions on the side wall of the tower sleeve and a locking mechanism at the bottom. This allows for immediate locking as the tower sleeve rises or falls, effectively preventing slippage or tipping during adjustment. This dual locking mechanism not only improves the stability of the support but also significantly enhances safety, especially in adverse weather conditions, ensuring the stability of the signage.

[0016] III. Easy to move and highly adaptable: The frame of this utility model is equipped with a handle and wheels at the bottom, making the movement of the support extremely convenient. Operators can easily push the support to move using the handle, and the wheels further reduce resistance during movement, improving operational flexibility. This design is not only suitable for the installation of fixed-point signs on highways, but can also be quickly moved to locations where temporary signs are needed, fully meeting the diverse and dynamic signage needs in highway traffic management.

[0017] IV. Easy Maintenance and Long Service Life: The structural design of this utility model is simple and reasonable, with all key components being standardized and modular, facilitating maintenance and replacement. Core components such as the locking pin, lifting buckle, and locking mechanism are all made of metal, ensuring a long service life. Simultaneously, the adjustable and stable design of the bracket reduces equipment wear and tear, lowers maintenance costs, and further enhances the equipment's economy and practicality.

[0018] V. Safe and Reliable, Reducing Accident Hazards: In highway traffic management, the height adjustment process of signs often involves certain safety hazards. This utility model, through an instant locking mechanism and multiple locking designs, effectively prevents the tower sleeve from slipping and tipping over during adjustment, significantly reducing safety hazards during operation. This design not only ensures the safety of operators but also reduces the risk of traffic accidents caused by loose or falling signs.

[0019] VI. Improved Work Efficiency and Reduced Operating Costs: This utility model significantly improves the work efficiency of highway sign management through its highly adjustable flexibility and convenient mobility. Operators can quickly complete the installation, adjustment, and relocation of signs, reducing time wasted due to inconvenient adjustment or equipment failure. At the same time, the durability and low maintenance requirements of the bracket also reduce equipment operating costs, further enhancing overall economic efficiency.

[0020] In summary, this utility model of a multi-purpose sign holder significantly improves the efficiency and safety of highway sign management through its flexible and efficient height adjustment, stable and reliable locking mechanism, convenient mobility, and reasonable design structure. It fully meets the diverse needs of modern traffic management and has broad application prospects and promotional value. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0022] Figure 2 This invention illustrates the structural diagram of the combination of the tower sleeve and the sign hanger.

[0023] Figure 3 This invention shows a schematic diagram of the structure combining the frame and the uprighting mechanism.

[0024] Figure 4 A three-dimensional structural diagram of the frame in this utility model is shown;

[0025] Figure 5 This invention illustrates a structural diagram of the combination of the tower sleeve and the locking mechanism.

[0026] Figure 6 A three-dimensional structural schematic diagram of the locking mechanism in this utility model is shown;

[0027] The diagram shows: 1. Ribbon; 11. Handle; 12. Shelf; 2. Tower sleeve; 21. Pin hole; 22. Locking pin; 23. Locking position; 24. Lifting buckle; 3. Erecting mechanism; 31. Erecting cylinder; 32. Erecting handle; 33. Support leg; 4. Locking mechanism; 41. Hinge seat; 42. Locking plate; 43. Locking strip; 44. Eagle beak buckle; 45. Wrench; 46. Return spring; 5. Grip; 6. Identification bracket. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0029] Example 1

[0030] To address the technical problems in the background section, the following multi-purpose sign holder is provided:

[0031] Combination Figure 1-3 As shown, a multi-purpose sign holder includes a tower sleeve 2 inserted inside a frame 1. The frame 1 has a handle 5 and a travel wheel at its bottom. A sign hanger 6 is attached to the tower sleeve 2. The tower sleeve 2 is a multi-section square tube sleeve structure. Its side has evenly arranged vertically arranged pin holes 21, and multiple locking pins 22 are inserted. Each section of the tower sleeve 2 has a lifting buckle 24 on its top outer periphery, which can be pulled to drive the tower sleeve 2 to rise and fall step by step. The height is locked in conjunction with the locking pins 22. The side wall of the tower sleeve 2 has multiple hollow locking positions 23 vertically arranged, and a locking mechanism 4 is provided at the bottom of the tower sleeve 2, which can lock immediately as the tower sleeve 2 rises and falls to prevent slippage.

[0032] Please refer to the instruction manual appendix. Figure 1-3 This utility model provides a first embodiment of a multi-purpose sign holder. To achieve the height adjustment function of the holder, the tower sleeve 2 is designed as a multi-section square tube sleeve structure. Each section of the tower sleeve 2 has pin holes 21 evenly distributed along its length. Locking pins 22 are inserted into the pin holes 21 to lock the height of the tower sleeve 2. Specifically, each section of the tower sleeve 2 has a lifting buckle 24 on its top outer periphery. The lifting buckle 24 is connected to an external power source or a manual operating device through a traction device. Pulling the lifting buckle 24 drives the tower sleeve 2 to rise and fall step by step. When the tower sleeve 2 rises or falls to the target height, the locking pin 22 locks the height by cooperating with the pin holes 21, ensuring the stability of the tower sleeve 2 during use.

[0033] To further enhance the safety and stability of the support structure, multiple hollowed-out locking positions 23 are vertically arranged on the side wall of the tower sleeve 2. These locking positions 23 cooperate with the locking mechanism 4. The locking mechanism 4 is located at the bottom of the tower sleeve 2 and can lock instantly as the tower sleeve 2 rises or falls. During adjustment, the locking mechanism 4, in conjunction with the locking positions 23, effectively prevents the tower sleeve 2 from slipping due to accidental loosening or external force, thus ensuring the stability of the support structure.

[0034] More preferably, to enable rapid installation and replacement of signs, a sign hanger 6 is affixed to the side wall of the tower sleeve 2. The sign hanger 6 is tightly connected to the tower sleeve 2 via fasteners, allowing for convenient installation and replacement of signs. The design of the sign hanger 6 not only improves the installation efficiency of signs but also ensures the stability of signs during use.

[0035] To improve the mobility of the support structure, the bottom of the frame 1 is equipped with a handle 5 and travel wheels. The handle 5 is used by the operator to push the support structure forward, while the travel wheels reduce the resistance during movement, making the transfer of the support structure between different work locations more flexible and efficient. Specifically, the travel wheels adopt a swivel caster design, which can adapt to different terrain conditions, further improving the mobility of the support structure.

[0036] More preferably, to improve the overall structural strength and durability of the support, both the frame 1 and the tower sleeve 2 are made of high-strength aluminum alloy. This material selection not only improves the load-bearing capacity of the support but also extends its service life. Furthermore, key components such as the locking pin 22, the lifting buckle 24, and the locking mechanism 4 are made of wear-resistant materials, further enhancing the durability and reliability of the support.

[0037] To further optimize the user experience of the support system, the multi-section square tube structure of the tower sleeve 2 is designed with a detachable connection, facilitating the transportation and storage of the support system. Each section of the tower sleeve 2 is connected by a socket joint, making the assembly and disassembly process simple and quick, effectively reducing the size and weight of the support system, and making it easier to transport and store.

[0038] In summary, the multi-purpose sign holder of this utility model achieves flexibility, stability and safety in height adjustment through the design of a multi-section square tube sleeve structure, lifting buckle 24, locking pin 22, locking position 23 and locking mechanism 4. At the same time, combined with the movable design of the handle 5 and the travel wheel, it fully meets the diverse and dynamic usage needs in highway sign management.

[0039] Example 2

[0040] Combination Figure 5-6 As shown, based on the above embodiments, this embodiment further provides the following:

[0041] In this embodiment, the locking mechanism 4 includes a hinge seat 41 attached to the bottom side wall of the tower sleeve 2, on which a ⊥-shaped rotatable locking plate 42 is provided. A locking strip 43 is vertically inserted into the locking plate 42. A wrench 45 is provided at the rear end of the locking plate 42, and an eagle beak buckle 44 adapted to the locking position 23 is embedded at the front end of the locking strip 43. The wrench 45 can be pulled as the tower sleeve 2 rises and falls, causing the eagle beak buckle 44 to engage with the locking position 23 and lock immediately.

[0042] The locking strip 43 has a toothed rack on its back and a matching groove is provided in the locking plate 42. It can be used to efficiently fix the locking strip 43 with the wrench 45 and prevent stripping.

[0043] The eagle beak buckle 44 has a barbed hook structure and is fixed to the locking strip 43 by a hinge. The eagle beak buckle 44 can rotate along the hinge point and can be quickly inserted into the locking position 23 for self-locking as the tower sleeve 2 rises and falls.

[0044] A return spring 46 is obliquely supported between the hinge seat 41 and the locking plate 42, which can push the eagle beak hook on the locking bar 43 to fasten the side wall of the tower sleeve 2.

[0045] Please refer to the instruction manual appendix. Figure 5-6 This utility model provides a second embodiment of a multi-purpose sign holder, which mainly consists of a tower sleeve 2, a hinge seat 41, a locking plate 42, a locking strip 43, a wrench 45, and an eagle beak buckle 44. In this embodiment, the locking mechanism 4 is designed to lock instantly as the tower sleeve 2 is raised or lowered, to ensure the stability and reliability of the holder during height adjustment and to prevent the tower sleeve 2 from slipping.

[0046] Specifically, the locking mechanism 4 includes a hinge seat 41 attached to the bottom side wall of the tower sleeve 2, and a ⊥-shaped rotatable locking plate 42 is provided on the hinge seat 41. A locking strip 43 is vertically inserted into the locking plate 42, and a rack is provided on the back of the locking strip 43. The locking plate 42 has grooves that are adapted to it. When the locking plate 42 rotates, the locking strip 43 is efficiently fixed through the cooperation of the rack and the grooves in the locking plate 42, thereby avoiding the occurrence of stripping. A wrench 45 is provided at the rear end of the locking plate 42 for manually operating the opening and closing of the locking mechanism 4. The first end of the locking strip 43 is fitted with an eagle beak buckle 44 adapted to the locking position 23. The eagle beak buckle 44 has a barbed structure and is fixed to the locking strip 43 by hinge. When the tower sleeve 2 is raised or lowered, the eagle beak buckle 44 can rotate along the hinge point, quickly insert into the locking position 23 and self-lock, thereby realizing the immediate locking of the tower sleeve 2.

[0047] To further improve the stability of the locking mechanism 4, a return spring 46 is obliquely supported between the hinge seat 41 and the locking plate 42. The return spring 46 can push the beak buckle 44 on the locking bar 43, making it tightly adhere to the side wall of the tower sleeve 2, ensuring that the locking mechanism 4 is always in a ready state during the lifting and lowering of the tower sleeve 2, and can realize the locking function at any time. This design not only improves the response speed of the locking mechanism 4, but also ensures the reliability of locking.

[0048] In practice, when tower sleeve 2 needs to be raised or lowered, the operator moves tower sleeve 2 by lifting buckle 24. The beak buckle 44 of locking mechanism 4 quickly engages with the locking position 23 on the side wall of tower sleeve 2 as tower sleeve 2 is raised or lowered, achieving immediate locking. When tower sleeve 2 needs to be unlocked, the operator pulls the locking plate 42 by lifting wrench 45, causing the locking strip 43 to disengage, thus disengaging the beak buckle 44 from the locking position 23, thereby completing the unlocking operation.

[0049] Furthermore, the ⊥-shaped design of the locking plate 42 and the fixing method of the hinge seat 41 allow the locking plate 42 to rotate flexibly while ensuring the structural strength of the locking mechanism 4. The barbed hook design of the eagle beak buckle 44 allows it to quickly engage with the locking position 23 and achieve self-locking, further improving the locking efficiency and reliability of the locking mechanism 4. The reset spring 46 ensures the automatic reset function of the locking mechanism 4 during the lifting and lowering of the tower sleeve 2, keeping the locking mechanism 4 in a ready state at all times to lock or unlock.

[0050] In summary, the locking mechanism 4 of this utility model, through the coordinated operation of components such as the hinge seat 41, locking plate 42, locking strip 43, wrench 45, and beak buckle 44, achieves the instant locking function during the lifting and lowering process of the tower sleeve 2. The matching design of the back rack of the locking strip 43 and the inner texture of the locking plate 42 effectively prevents stripping; the barbed structure and hinge design of the beak buckle 44 make the locking process fast and reliable; and the setting of the return spring 46 ensures the automatic reset function of the locking mechanism 4. This design not only improves the stability and reliability of the locking mechanism 4, but also provides a safety guarantee for the lifting and lowering adjustment of the tower sleeve 2, fully meeting the usage needs of the highway sign bracket during height adjustment.

[0051] Example 3

[0052] Combination Figure 1-4 As shown, based on the above embodiments, this embodiment further provides the following:

[0053] In this embodiment, the frame 1 is a four-corner frame structure with a shelf 12 inside. The bottom of the frame 1 is narrow at the front and wide at the back, and there are travel wheels at the front and rear forks, which can be moved by the handle 5.

[0054] The frame 1 is equipped with an erecting mechanism 3, which includes an erecting cylinder 31 mounted on the shelf 12, an L-shaped erecting handle 32 inserted into its side, and supports 33 passing through the four corners of the frame 1 via oil pipes. The supports 33 can be raised and lowered instantly by the erecting cylinder 31 driven by the erecting handle 32.

[0055] Please refer to the instruction manual appendix. Figure 1-4 This utility model provides a third embodiment of the frame structure 1. In this embodiment, the frame 1 is constructed from a four-corner frame main frame, with a rectangular shelf 12 arranged horizontally inside for supporting tools. The bottom of the four-corner frame adopts a bifurcated structure that is narrower at the front and wider at the back. The front narrows to form a streamlined contact surface, while the rear expands to form a stable support area. Two sets of travel wheels are symmetrically installed at the intersection of the front and rear bifurcations. These travel wheels are connected to the frame body through bearings and can realize the translational movement of the entire structure in response to the traction force of the external handle 5.

[0056] To ensure stable support for the frame 1 in a static state, each of the four corner ends of the frame is provided with a cylindrical support leg 33 mounting cavity, which houses an adjustable support leg 33 assembly. The top of the support leg 33 is connected to the frame body via a ball joint, and the bottom is equipped with an anti-slip rubber pad. In particular, the support leg 33 driving mechanism adopts a hydraulic control scheme. A columnar erecting cylinder 31 is mounted in the central area of ​​the shelf 12. The piston rod of the cylinder extends laterally into an L-shaped erecting handle 32, and an operating handle is provided at the bend of the handle to facilitate manual application of rotational torque.

[0057] Furthermore, the erecting cylinder 31 is connected to the four corner support legs 33 cavities via four sets of independent oil circuit pipes. The oil pipes are laid along the pre-set grooves inside the main body of the four corner frame, using a combination of segmented metal hoses and rigid conduits to ensure both hydraulic transmission efficiency and adaptability to frame deformation. When the operator moves the erecting handle 32, the cylinder piston generates axial displacement, transmitting pressure to each support leg 33 cavity through the hydraulic medium, pushing the support legs 33 to extend and retract synchronously in the vertical direction.

[0058] To optimize ease of operation, a two-way limiting latching mechanism is installed at the connection between the lifting handle 32 and the hydraulic cylinder. This mechanism includes two sets of positioning pins distributed at 90 degrees, corresponding to the fully retracted moving state and the fully extended stationary state of the support leg 33, respectively. When the lifting handle 32 rotates to the limiting point, the positioning pins automatically engage with the pre-set grooves in the hydraulic cylinder housing under the action of the spring, achieving mechanical locking in the working state. To unlock, the release button at the end of the handle must be pressed to disengage the positioning pins from the grooves and restore operational freedom.

[0059] Regarding the configuration of the driving wheel system, the front wheel assembly adopts a swivel wheel structure with a smaller wheel diameter than the rear wheel assembly, and the wheel surface has V-shaped guide grooves to improve steering accuracy. The rear wheel assembly uses wide-width pneumatic rubber tires, and achieves synchronous steering of both wheels through a wheel-axle linkage device.

[0060] Working principle and usage process of this utility model:

[0061] First, place the frame 1 on the target working surface. The operator presses down on the end of the erecting handle 32. At this time, the erecting cylinder 31 sends pressure to the four corner supports 33 through the hydraulic lines, pushing the supports 33 vertically downward until the rubber anti-slip pads are in complete contact with the ground. After the supports 33 are stable, insert the first section of the tower sleeve 2 into the pre-reserved square base at the top of the frame 1. The second section of the tower sleeve 2 is raised to the required height by manually pulling the lifting buckle 24. The locking pin 22 is then inserted horizontally into the corresponding pin hole 21 to complete the initial fixation.

[0062] When it is necessary to further increase the hanging height of the sign, first pull up the current segment lifting buckle 24 to raise the upper tower sleeve 2, and at the same time observe the relative position of the beak buckle 44 inside the locking plate 42 and the locking position 23 on the side wall of the tower sleeve 2. The operator presses the wrench 45 on the back of the locking plate 42, causing the beak buckle 44 to rotate around the hinge point and disengage from the current locking position 23. At this time, the tower sleeve 2 can be raised and lowered freely. When the tower sleeve 2 reaches the new height, release the wrench 45 so that the return spring 46 pushes the beak buckle 44 into the target locking position 23, and at the same time, the rack on the back of the locking strip 43 engages with the grooves inside the locking plate 42 to lock.

[0063] After completing the height adjustment, check the status of the locking mechanism 4: confirm that the hook of the eagle beak buckle 44 is fully engaged in the locking position 23, and check that there is no axial displacement when the locking plate 42 is moved. Install the marking bracket 6 onto the preset mounting plane of the tower sleeve 2 with bolts, adjust the bracket angle, and then tighten the fixing nut.

[0064] When moving the support frame, first lift the erecting handle 32 to fully retract the outriggers 33 to the bottom of the frame 1, at which point the travel wheels will touch the ground. The operator holds the bottom handle 5 of the frame 1 to apply traction. The front wheel assembly's swivel wheels adjust their angles according to the traction direction, while the rear wheel assembly maintains synchronized steering. When encountering sloping terrain, the erecting handle 32 can be operated in stages to fine-tune the extension length of the outriggers 33 to maintain the frame's balance.

[0065] When storing, follow the reverse procedure: After releasing the locking pin 22, lower the tower sleeve 2 step by step. When the last tower sleeve 2 reaches the base, move the locking plate 42 to completely disengage the eagle beak buckle 44 from the locking position 23, and remove the tower sleeve 2 as a whole. Finally, raise the support leg 33 to the transport height and lock it. After removing any debris from the gaps between the travel wheels, store it flat.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multipurpose signboard support, comprising a tower sleeve (2) inserted in a prism frame (1), the prism frame (1) being provided with a handle (5) and a traveling wheel at the bottom, and a sign hanging frame (6) being attached to the tower sleeve (2), characterized in that: The tower sleeve (2) is a multi-section square tube sleeve structure. It has evenly vertically arranged pin holes (21) through its side and multiple locking pins (22) inserted therein. Each section of the tower sleeve (2) has a lifting buckle (24) on the top outer periphery. The lifting buckle (24) can be pulled to drive the tower sleeve (2) to rise and fall step by step, and the height can be locked in conjunction with the locking pins (22). The side wall of the tower sleeve (2) has multiple hollow locking positions (23) vertically arranged, and a locking mechanism (4) is provided at the bottom of the tower sleeve (2). It can lock immediately as the tower sleeve (2) rises and falls to prevent slippage.

2. The multi-purpose sign holder according to claim 1, characterized in that: The locking mechanism (4) includes a hinge seat (41) attached to the bottom side wall of the tower sleeve (2), on which a ⊥-shaped rotatable locking plate (42) is provided. A locking strip (43) is vertically inserted in the locking plate (42). A wrench (45) is provided at the rear end of the locking plate (42), and an eagle beak buckle (44) adapted to the locking position (23) is embedded at the head end of the locking strip (43). The wrench (45) can be pulled as the tower sleeve (2) rises and falls, thereby driving the eagle beak buckle (44) to engage with the locking position (23) and lock it immediately.

3. A multi-purpose sign holder according to claim 2, characterized in that: The locking strip (43) has a toothed rack on its back and a matching groove is provided in the locking plate (42). It can be used to efficiently fix the locking strip (43) with the wrench (45) and prevent stripping.

4. A multi-purpose sign holder according to claim 3, characterized in that: The eagle beak buckle (44) is a barbed hook structure, which is fixed to the locking strip (43) by hinge. The eagle beak buckle (44) can rotate along the hinge point and can be quickly embedded into the locking position (23) for self-locking as the tower sleeve (2) rises and falls.

5. A multi-purpose sign holder according to claim 4, characterized in that: The frame (1) is a four-corner frame structure with a shelf (12) inside. The bottom of the frame (1) is narrow at the front and wide at the back, and there are travel wheels at the front and rear forks, which can be pulled and moved by the handle (5).

6. A multi-purpose sign holder according to claim 5, characterized in that: The frame (1) is provided with a lifting mechanism (3), which includes a lifting cylinder (31) mounted on the shelf (12), an L-shaped lifting handle (32) inserted on its side, and supports (33) passing through the four corners of the frame (1) via oil pipes. The lifting cylinder (31) can be driven by the lifting handle (32) to drive the supports (33) to rise and fall instantly.

7. A multi-purpose sign holder according to claim 2, characterized in that: A return spring (46) is obliquely supported between the hinge seat (41) and the locking plate (42), which can push the eagle beak hook on the locking bar (43) to fasten the side wall of the tower sleeve (2).

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