Expressway information board installation quick lock mechanism

Abstract

The utility model discloses a highway information board installation quick lock mechanism, including module connecting piece, frame connecting piece and self -locking type compression device, module connecting piece sets up at the back of information board, and module connecting piece includes L hook, and L hook has horizontal section and the vertical section of bending extension from the horizontal section one end downward, and horizontal section is hinged with information board, frame connecting piece sets up in the mounting frame crossbeam, and frame connecting piece includes fixed base, and the fixed base is opened to the import groove of the horizontal section horizontal embedding of L hook, and is located the locking groove of import groove below and the intercommunication, and the locking groove is used to accommodate the vertical section downward rotation of L hook and is inserted, and self -locking type compression device sets up on the fixed base, is used to after L hook rotation and inserts the locking groove, and presses down the horizontal section and locks in import groove in it. This highway information board installation quick lock mechanism can complete the installation of information board fast and reliably.

Description

Technical Field

[0001] This utility model relates to the field of highway traffic facilities technology, specifically to a quick-lock mechanism for installing highway information boards. Background Technology

[0002] Highway information boards (variable message signs) are important traffic information dissemination facilities. Currently, the display modules (such as LED module housings) of these boards are mostly connected to the mounting brackets using bolts. This method has significant drawbacks: 1. Low installation efficiency: Each box requires tightening multiple bolts, which is difficult and time-consuming for high-altitude operations and affects traffic.

[0003] 2. Inconvenient maintenance: Disassembly is cumbersome when replacing or repairing faulty modules, which also poses efficiency and safety issues.

[0004] 3. High dependence on tools: Specific sizes of wrenches and other tools must be carried, otherwise the work cannot be carried out.

[0005] 4. Bolts are prone to rust: In long-term outdoor environments, bolts are prone to rusting and seizing, making disassembly difficult. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a quick-locking mechanism for installing highway information boards, which can quickly and reliably complete the installation of information boards.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-lock mechanism for installing highway information boards, comprising: A module connector is disposed on the back of the information board. The module connector includes an L-shaped hook, which has a horizontal section and a vertical section that bends downward from one end of the horizontal section. The horizontal section is hinged to the information board. A frame connector, mounted on the crossbeam of the mounting frame, includes a fixing base with an inlet groove for the horizontal section of an L-shaped hook to be horizontally inserted, and a locking groove located below and communicating with the inlet groove, the locking groove being used to accommodate the vertical section of the L-shaped hook rotating downwards and engaging. A self-locking clamping device is installed on the fixed base and is used to press down on the horizontal section and lock it in the guide groove after the L-shaped hook is rotated and engaged in the locking groove.

[0008] Furthermore, the self-locking clamping device includes a support frame, a pressure rod, a pressure plate, an L-shaped rocker arm, and a linkage transmission mechanism; the top of the fixed base is provided with a vertical insertion hole communicating with the guide groove, the pressure plate is slidably accommodated in the insertion hole, the lower end of the pressure rod is connected to the pressure plate, and the upper end slidably extends out of the insertion hole; The support frame is fixed to the fixed base; the middle part of the L-shaped rocker arm is hinged to the support frame through a first pivot, forming a long lever arm end and a short lever arm end; the linkage transmission mechanism includes a first link, a second link, and a third link that are hinged end to end; the ends of the first link and the second link are hinged to each other, and one end of the first link is hinged to the top of the pressure rod through a second pivot; one end of the second link is hinged to the other end of the first link through a third pivot, and its other end is hinged to the support frame through a fourth pivot; one end of the third link is connected to the hinge joint of the first link and the second link through a fifth pivot, and its other end is hinged to the short lever arm end of the L-shaped rocker arm through a sixth pivot; pressing down the long lever arm end of the L-shaped rocker arm can drive the pressure rod to move down through the linkage transmission mechanism. When the pressure plate presses against the horizontal section, the axes of the second pivot, the third pivot, and the fourth pivot are collinear, forming a self-locking state through the dead point.

[0009] Furthermore, the self-locking clamping device also includes a first return spring, which is disposed in the insertion hole, with its two ends abutting against the pressure plate and the bottom wall of the insertion hole respectively, for providing an elastic force to reset the pressure plate upward.

[0010] Furthermore, the bottom surface of the pressure plate is covered with an elastic wear-resistant material layer.

[0011] Furthermore, it also includes a rocker arm positioning assembly, which is disposed on the fixed base and is used to restrict the long lever arm end of the L-shaped rocker arm from rotating upward after the linkage transmission mechanism is in the over-dead-point self-locking state.

[0012] Furthermore, the rocker arm positioning assembly includes a stop block and a second return spring; the fixed base is provided with a laterally extending slide rail, and the stop block is slidably disposed in the slide rail; one end of the second return spring is connected to the fixed base, and the other end is connected to the stop block, for providing a preload force to the stop block toward the L-shaped rocker arm; the end of the stop block near the L-shaped rocker arm is provided with a downwardly inclined guide slope; when the long lever arm end of the L-shaped rocker arm is pressed down, its end can slide along the guide slope and push the stop block to move backward against the elastic force of the second return spring until it passes the stop block and engages with the lower surface of the stop block.

[0013] Furthermore, the lower surface of the stop block is provided with anti-slip serrations.

[0014] The beneficial effects of this utility model are: The installation of quick-lock mechanisms on the aforementioned highway information boards offers at least the following advantages: 1. Through the combined design of the L-shaped hook, guide groove, and locking groove, operators can complete the initial positioning and connection with a simple horizontal insertion action, and finally lock it in place using the self-locking clamping device. The entire process requires no tools and can be completed by hand, reducing the installation or disassembly time of a single module from several minutes to tens of seconds, greatly improving work efficiency and reducing the impact on traffic.

[0015] 2. The self-locking clamping device can maintain a stable clamping state even after the external force is removed. The mechanical locking force it generates is huge and constant, which can effectively resist the continuous vibration caused by strong winds and vehicle traffic in highway scenarios, completely avoiding the risk of traditional bolts loosening due to vibration, and ensuring the safety and reliability of the information board in long-term operation. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 A schematic diagram of a quick-lock mechanism for installing a highway information board according to an embodiment of the present invention; Figure 2 To adopt Figure 1 The diagram shows the intention of using a quick-lock mechanism to lock the highway information sign onto the mounting bracket. Figure 3 for Figure 1 The diagram shows the state in which the L-shaped hook is locked to the locking groove in the quick-lock mechanism of the highway information board. Figure 4 for Figure 1 The diagram shows the state of the highway information board installation quick-lock mechanism, with the pressure plate pressed against the L-shaped hook and the stop block blocking the long arm of the L-shaped rocker arm. Figure label: 1. Information board; 2. Mounting rack; 100. Module connector; 110. L-shaped hook; 120. Limiting component; 200. Frame connector; 210. Fixing base; 220. Guide groove; 230. Locking groove; 300. Self-locking clamping device; 310. Support frame; 320. Pressure rod; 330. Pressure plate; 340. L-shaped rocker arm; 350. Linkage transmission mechanism; 351. First link; 352. Second link; 353. Third link; 360. First return spring; 400. Rocker arm positioning assembly; 410. Stop block; 420. Second return spring. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention; therefore, the invention is not limited to the specific embodiments disclosed below.

[0019] Please see Figures 1 to 4 This utility model provides a quick-locking mechanism for installing highway information boards, including a module connector 100, a frame connector 200, and a self-locking clamping device 300.

[0020] The module connector 100 is fixedly mounted to the information board 1 with bolts. The module connector 100 includes an L-shaped hook 110, which has a horizontal section and a vertical section extending downwards from one end of the horizontal section. The horizontal section is hinged to the information board 1. This hinged design allows the L-shaped hook 110 a certain degree of freedom of movement during initial installation, facilitating initial docking with the frame connector 200 and reducing the requirement for absolute precision during installation. In practical implementation, to prevent the L-shaped hook 110 from swinging excessively downwards, a limiting member 120 can be installed below the L-shaped hook 110, abutting against the lower part of the horizontal section.

[0021] The frame connector 200 is fixedly installed on the mounting bracket 2 beside the highway by bolts. The frame connector 200 includes a fixing base 210. The fixing base 210 has an inlet groove 220 for the horizontal section of the L-shaped hook 110 to be horizontally inserted, and a locking groove 230 located below and communicating with the inlet groove 220. The locking groove 230 is used to accommodate the vertical section of the L-shaped hook 110 to rotate downward and lock into place.

[0022] The self-locking clamping device 300 is mounted on the fixed base 210 and is used to perform clamping and locking actions after the horizontal section of the L-shaped hook 110 is inserted into the guide groove 220 and the vertical section is rotated into the locking groove 230.

[0023] During installation, the operator simply lifts the information panel module, aligns the horizontal section of the L-shaped hook 110 with the guide groove 220 of the fixing seat 210, and pushes it horizontally into the locking groove 230. The vertical section then slides into the locking groove 230. Finally, the self-locking clamping device 300 completes the locking process. This process requires no tools and can be completed by hand, reducing installation time from several minutes to tens of seconds, significantly improving efficiency and avoiding maintenance problems caused by bolt corrosion.

[0024] In this embodiment, the self-locking clamping device 300 includes a support frame 310, a pressure rod 320, a pressure plate 330, an L-shaped rocker arm 340, and a linkage transmission mechanism 350.

[0025] A vertical insertion hole is provided at the top of the fixed base 210, communicating with the lower guide groove 220. The pressure plate 330 is slidably accommodated in this insertion hole. The lower end of the pressure rod 320 is fixedly connected to the pressure plate 330, while the upper end slidably extends out of the insertion hole. The support frame 310 is firmly fixed to the top of the fixed base 210 by bolts. The middle part of the L-shaped rocker arm 340 is hinged to the support frame 310 through a first pivot, thus dividing it into a long lever arm end (operating end) and a short lever arm end (power output end).

[0026] The linkage mechanism 350 includes a first link 351, a second link 352, and a third link 353. The ends of the first link 351 and the second link 352 are hinged to each other. One end of the first link 351 is hinged to the top of the pressure rod 320 via a second pivot. One end of the second link 352 is hinged to the other end of the first link 351 via a third pivot, and the other end is hinged to the support frame 310 via a fourth pivot. One end of the third link 353 is connected to the hinge point of the first link 351 and the second link 352 via a fifth pivot, and the other end is hinged to the short lever arm end of the L-shaped rocker arm 340 via a sixth pivot.

[0027] In use: When the long arm end of the L-shaped rocker arm 340 is pressed down, the hinge point between the first link 351 and the second link 352 is pulled by the third link 353, forcing the second link 352 to rotate around its hinge point (fourth pivot) with the support frame 310. This action pushes the pressure rod 320 and the pressure plate 330 downward through the first link 351, so that the pressure plate 330 tightly presses against the horizontal section of the L-shaped hook 110 embedded in the guide groove 220. When the clamping is in place, the axes of the second, third, and fourth pivots move exactly into a straight line, that is, reaching the "over-dead point" position. At this time, when the reverse force acting on the horizontal section of the hook attempts to push the pressure rod 320 back up, the direction of the force will cause the second and third pivots to press tightly against the fourth pivot, rather than pushing them to rotate, thus achieving mechanical self-locking. This structure utilizes the linkage principle to obtain a huge clamping force with a small operating force, and the locking state is absolutely reliable, without worrying about loosening caused by vibration.

[0028] In practical implementation, a first return spring 360 is also provided inside the vertical insertion hole. One end of the spring abuts against the upper surface of the pressure plate 330, and the other end abuts against the bottom wall of the insertion hole.

[0029] When the module needs to be disassembled and the self-locking mechanism needs to be released, the L-shaped rocker arm 340 is lifted. After the linkage mechanism passes the dead point, under the elastic force of the first return spring 360, the pressure plate 330 and the pressure rod 320 are automatically pushed upwards back to their initial positions, causing the pressure plate 330 to disengage from the horizontal section of the L-shaped hook 110. This design achieves automatic reset of the clamping device, preparing it for the next installation. Furthermore, a layer of elastic, wear-resistant material made of polyurethane or nitrile rubber can be bonded to the bottom surface of the pressure plate 330. This increases the friction between the pressure plate and the horizontal section of the L-shaped hook 110, preventing relative slippage and making the locking more reliable.

[0030] In a preferred embodiment, the mechanism further includes a rocker arm positioning assembly 400. The rocker arm positioning assembly 400 is disposed on the fixed base 210 and is used to restrict the long lever arm end of the L-shaped rocker arm 340 from rotating upward after the linkage transmission mechanism 350 is in the over-dead-point self-locking state.

[0031] The rocker arm positioning assembly 400 includes a stop block 410 and a second return spring 420; the fixed base 210 is provided with a laterally extending slide rail, and the stop block 410 is slidably disposed in the slide rail; one end of the second return spring 420 is connected to the fixed base 210, and the other end is connected to the stop block 410, for providing a preload force to the stop block 410 toward the L-shaped rocker arm 340; the end of the stop block 410 near the L-shaped rocker arm 340 is provided with a downwardly inclined guide slope; when the long lever arm end of the L-shaped rocker arm 340 is pressed down, its end can slide along the guide slope and push the stop block 410 to move backward against the elastic force of the second return spring 420 until it passes the stop block 410 and engages with the lower surface of the stop block 410.

[0032] During operation, when the long lever arm end of the L-shaped rocker arm 340 is pressed down, its end first contacts the guide ramp of the stop block 410 and slides along the ramp as the pressure is applied, simultaneously pushing the stop block 410 to compress the second return spring 420 and retract. Once the rocker arm has passed the farthest end of the stop block 410, the second return spring 420 quickly pushes the stop block 410 back to its original position, at which point the long lever arm end of the rocker arm is locked under the lower surface of the stop block 410. This design forms a simple one-way latch, effectively preventing the L-shaped rocker arm 340 from accidentally rotating upwards under external forces such as wind vibration, thus preventing the self-locking mechanism from being accidentally released and greatly enhancing the reliability and safety of the entire mechanism.

[0033] In practical implementation, transverse anti-slip serrations can be machined on the lower surface of the stop 410. The anti-slip serrations can increase the static friction between the lower surface of the stop 410 and the end of the L-shaped rocker arm 340, making it more difficult for the rocker arm to accidentally come out after it is stuck, and further enhancing the locking reliability of the rocker arm positioning assembly 400.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A quick-lock mechanism for installing highway information boards, characterized in that, include: A module connector is disposed on the back of the information board. The module connector includes an L-shaped hook, which has a horizontal section and a vertical section that bends downward from one end of the horizontal section. The horizontal section is hinged to the information board. A frame connector, mounted on the crossbeam of the mounting frame, includes a fixing base with an inlet groove for the horizontal section of an L-shaped hook to be horizontally inserted, and a locking groove located below and communicating with the inlet groove, the locking groove being used to accommodate the vertical section of the L-shaped hook rotating downwards and engaging. A self-locking clamping device is installed on the fixed base and is used to press down on the horizontal section and lock it in the guide groove after the L-shaped hook is rotated and engaged in the locking groove.

2. The quick-lock mechanism for installing highway information boards according to claim 1, characterized in that, The self-locking clamping device includes a support frame, a pressure rod, a pressure plate, an L-shaped rocker arm, and a linkage transmission mechanism; the top of the fixed base is provided with a vertical insertion hole communicating with the guide groove, the pressure plate is slidably accommodated in the insertion hole, the lower end of the pressure rod is connected to the pressure plate, and the upper end is slidably extended out of the insertion hole; The support frame is fixed to the fixed base; the middle part of the L-shaped rocker arm is hinged to the support frame through a first pivot, forming a long lever arm end and a short lever arm end; the linkage transmission mechanism includes a first link, a second link, and a third link that are hinged end to end; the ends of the first link and the second link are hinged to each other, and one end of the first link is hinged to the top of the pressure rod through a second pivot; one end of the second link is hinged to the other end of the first link through a third pivot, and its other end is hinged to the support frame through a fourth pivot; one end of the third link is connected to the hinge joint of the first link and the second link through a fifth pivot, and its other end is hinged to the short lever arm end of the L-shaped rocker arm through a sixth pivot; pressing down the long lever arm end of the L-shaped rocker arm can drive the pressure rod to move down through the linkage transmission mechanism. When the pressure plate presses against the horizontal section, the axes of the second pivot, the third pivot, and the fourth pivot are collinear, forming a self-locking state through the dead point.

3. The highway information board quick-lock mechanism according to claim 2, characterized in that: The self-locking clamping device further includes a first return spring, which is disposed in the insertion hole, with its two ends abutting against the pressure plate and the bottom wall of the insertion hole, respectively, to provide an elastic force that causes the pressure plate to return to its original position.

4. The quick-lock mechanism for installing highway information boards according to claim 2, characterized in that: The bottom surface of the pressure plate is covered with an elastic wear-resistant material layer.

5. The highway information board quick-lock mechanism according to claim 2, characterized in that: It also includes a rocker arm positioning assembly, which is disposed on the fixed base and is used to restrict the long lever arm end of the L-shaped rocker arm from rotating upward after the linkage transmission mechanism is in the over-dead-point self-locking state.

6. The highway information board quick-lock mechanism according to claim 5, characterized in that: The rocker arm positioning assembly includes a stop block and a second return spring; the fixed base is provided with a laterally extending slide rail, and the stop block is slidably disposed in the slide rail; one end of the second return spring is connected to the fixed base, and the other end is connected to the stop block, for providing a preload force to the stop block toward the L-shaped rocker arm; the end of the stop block near the L-shaped rocker arm is provided with a downwardly inclined guide slope; when the long lever arm end of the L-shaped rocker arm is pressed down, its end can slide along the guide slope and push the stop block to move backward against the elastic force of the second return spring until it passes the stop block and engages with the lower surface of the stop block.

7. The highway information board quick-lock mechanism according to claim 6, characterized in that: The lower surface of the stop block is provided with anti-slip serrations.

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