Adjustable lifting warning board based on pressure induction

Abstract

The invention discloses an adjustable lifting warning board based on pressure induction. The adjustable lifting warning board comprises a base; the flange plate is arranged on the base, and the axis of the flange plate is arranged in the vertical direction; the bearing seat is arranged on the flange plate, and the axis of the bearing seat coincides with the axis of the flange plate; one end of the lifting rod penetrates through the bearing seat and the flange plate; the warning board main body is arranged on the lifting rod; the first frame is arranged above the base and is connected with the bearing seat; the grating assembly is arranged in the first frame and hinged to the first frame through a positioning pin shaft; and the wing plate is arranged in the first frame and is hinged with the first frame through a positioning pin shaft. Therefore, the use stability under the complex meteorological condition can be effectively improved, the installation requirements of different scenes can be met, and the stable working state is kept under various working conditions.

Description

Technical Field

[0001] This invention relates to the field of traffic engineering, specifically to an adjustable lifting warning sign based on pressure sensing. Background Technology

[0002] In the field of traffic engineering, warning signs serve as crucial traffic guidance and safety warning facilities, and their stability and adaptability directly impact their effectiveness. Currently, common warning signs are typically secured by the weight of their base or simple counterweights. However, in complex weather conditions such as strong winds, the lack of an adaptive airflow adjustment structure means that the oncoming airflow can easily create a significant tilting moment on the sign, potentially causing it to tilt or even fall over, thus affecting its normal use. Furthermore, the auxiliary support structures of existing warning signs are mostly fixed, making it difficult to flexibly adjust according to actual working conditions. Their stability performance under different wind conditions is limited, and they cannot effectively address the stability issues caused by airflow impacts. Summary of the Invention

[0003] The present invention aims to at least partially solve the technical problems in the above-mentioned technologies.

[0004] Therefore, this invention discloses an adjustable lifting warning sign based on pressure sensing, comprising:

[0005] Base;

[0006] A flange is mounted on the base, with its axis arranged vertically.

[0007] A bearing housing is mounted on the flange, and its axis coincides with the axis of the flange.

[0008] The lifting rod has one end passing through the bearing seat and connecting with the flange;

[0009] The main body of the warning sign is mounted on the lifting rod;

[0010] A first frame is disposed above the base and connected to the bearing seat;

[0011] A grille assembly is disposed within the first frame and is hinged to the first frame via a positioning pin.

[0012] The wing plate is disposed within the first frame and is hinged to the first frame via a positioning pin.

[0013] The pressure-sensitive adjustable lifting warning sign disclosed in this invention can effectively improve the stability of use under complex weather conditions and adapt to the installation requirements of different scenarios, maintaining a stable working state under various working conditions.

[0014] In addition, the pressure-sensitive adjustable lifting warning sign disclosed in this invention may also have the following additional technical features:

[0015] Furthermore, the grille assembly includes:

[0016] Four mounting plates are respectively positioned along the top, bottom, left, and right sides, forming a second frame;

[0017] Multiple grid plates, each disposed within the second frame and hinged to the upper and lower mounting plates respectively.

[0018] Furthermore, the grille assembly also includes:

[0019] Multiple connecting rods, one end of each of which is respectively set on the hinge shaft of each of the grid plates, and the other end of each of which is provided with a sliding groove;

[0020] The slide rail, whose fixed rail is connected to the mounting plate above;

[0021] Multiple sliders are respectively disposed in the groove of each of the connecting rods, and each is respectively connected to the sliding rail of the slide rail.

[0022] Furthermore, it also includes:

[0023] Two adjustment components are respectively mounted on the upper and lower mounting plates, and are used to drive the sliding rail of the slide rail to move.

[0024] Furthermore, the adjustment component includes:

[0025] The adjusting shaft has a threaded end;

[0026] A U-shaped connector is provided on the threaded end of the adjusting shaft;

[0027] A T-shaped connecting seat is provided at the other end of the adjusting shaft;

[0028] A knob sleeve is disposed within the U-shaped connecting seat and screwed to the adjusting shaft;

[0029] A spring is provided on the other end of the adjusting shaft and cooperates with the T-shaped connecting seat to make the knob sleeve and the adjusting shaft self-locking;

[0030] The pipe clamp is mounted on the adjusting shaft and connected to the sliding rail of the slide rail.

[0031] Furthermore, the adjustment component also includes:

[0032] A gear ring is mounted on the knob sleeve.

[0033] Furthermore, it also includes:

[0034] A drive shaft is disposed within the second frame and passes through the upper mounting plate and the lower mounting plate respectively;

[0035] Two bevel gears are respectively mounted on the drive shaft and mesh with the gear rings in the adjustment assembly on the upper mounting plate and the gear rings in the adjustment assembly on the lower mounting plate, respectively.

[0036] Furthermore, it also includes:

[0037] A lightning rod is installed on the rising mast.

[0038] Additional features and advantages of this invention will be set forth in the description which follows, or may be learned by practicing the invention. Attached Figure Description

[0039] The technical solution and beneficial effects of the present invention will become apparent and readily understood from the following description in conjunction with the accompanying drawings, wherein:

[0040] Figure 1 This is a schematic diagram of the adjustable lifting warning sign based on pressure sensing according to the present invention;

[0041] Figure 2 This is a schematic diagram of the structure of the base, flange, and bearing housing of the present invention;

[0042] Figure 3 This is a schematic diagram of the structure of the grille assembly of the present invention;

[0043] Figure 4 This is a schematic diagram of the structure of the grating plate of the present invention;

[0044] Figure 5 for Figure 4 Enlarged view of part A;

[0045] Figure 6 This is a schematic diagram of the slide rail, slider, and clamp of the present invention;

[0046] Figure 7 for Figure 6 Enlarged view of part B;

[0047] Figure 8 This is a schematic diagram of the connecting rod structure of the present invention;

[0048] Figure 9 for Figure 8 Enlarged view of part C;

[0049] Figure 10 for Figure 8 Enlarged view of part D;

[0050] Figure 11 This is a schematic diagram of the transmission shaft of the present invention;

[0051] Figure 12 for Figure 11 Enlarged view of part E;

[0052] As shown in the figure:

[0053] 10-Base;

[0054] 20-Flange;

[0055] 30 - Bearing housing;

[0056] 40 - Lifting boom;

[0057] 50 - The main body of the warning sign;

[0058] 60 - First border;

[0059] 70 - Grille assembly;

[0060] 701-Mounting plate, 702-Grating plate, 703-Connecting rod, 704-Slide rail, 705-Slider;

[0061] 80-wing plate;

[0062] 90-Adjustment component;

[0063] 901-Adjusting shaft, 902-U-shaped connecting seat, 903-T-shaped connecting seat, 904-Knob sleeve, 905-Spring, 906-Pipe clamp, 907-Gear ring;

[0064] 100 - Drive shaft;

[0065] 110-Bevel gear;

[0066] 120-Lightning rod;

[0067] 130 - Bottom beam. Detailed Implementation

[0068] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0069] The adjustable lifting warning sign based on pressure sensing disclosed in this invention will now be described with reference to the accompanying drawings;

[0070] like Figure 1 and Figure 2 As shown, this pressure-sensitive adjustable height warning sign includes:

[0071] Base 10;

[0072] Flange 20 is mounted on base 10 and its axis is set in the vertical direction;

[0073] The bearing housing 30 is mounted on the flange 20, and its axis coincides with the axis of the flange 20.

[0074] The lifting rod 40 has one end passing through the bearing housing 30 and connecting with the flange 20;

[0075] The main body of the warning sign is 50, which is mounted on the lifting rod 40;

[0076] The first frame 60 is positioned above the base 10 and is connected to the bearing seat 30;

[0077] A grille assembly 70 is disposed within a first frame 60 and is hinged to the first frame 60 via a locating pin.

[0078] The wing plate 80 is disposed within the first frame 60 and is hinged to the first frame 60 via a positioning pin.

[0079] like Figure 3 , Figure 4 and Figure 5 As shown, the grille assembly 70 includes:

[0080] Four mounting plates 701 are respectively positioned along the top, bottom, left, and right sides, forming a second frame;

[0081] Multiple grille plates 702 are respectively disposed within the second frame and are respectively hinged to the upper mounting plate 701 and the lower mounting plate 701.

[0082] like Figure 6 and Figure 7 As shown, the grille assembly 70 also includes:

[0083] Multiple connecting rods 703, one end of each of which is respectively set on the hinge shaft of each grid plate 702, and the other end of each of which is provided with a sliding groove;

[0084] The slide rail 704 has a fixed rail connected to the mounting plate 701 above it;

[0085] Multiple sliders 705 are respectively disposed in the groove of each connecting rod 703, and each is connected to the sliding rail of the slide rail 704.

[0086] like Figure 8 , Figure 9 and Figure 10 As shown, this pressure-sensitive adjustable height warning sign also includes:

[0087] Two adjustment components 90 are respectively mounted on the upper mounting plate 701 and the lower mounting plate 701, and are used to drive the sliding rail of the slide rail 704 to move.

[0088] Adjustment component 90 includes:

[0089] Adjusting shaft 901, one end of which is threaded;

[0090] U-shaped connector 902 is provided on the threaded end of the adjusting shaft 901;

[0091] T-shaped connector 903 is provided at the other end of the adjusting shaft 901;

[0092] The knob sleeve 904 is located inside the U-shaped connecting seat 902 and is screwed to the adjusting shaft 901;

[0093] Spring 905 is provided on the other end of the adjusting shaft 901 and cooperates with T-shaped connecting seat 903 to make knob sleeve 904 and adjusting shaft 901 self-locking;

[0094] Pipe clamp 906 is mounted on adjusting shaft 901 and connected to slide rail 704.

[0095] Adjustment component 90 also includes:

[0096] Gear ring 907 is mounted on knob sleeve 904.

[0097] like Figure 11 and Figure 12 As shown, this pressure-sensitive adjustable height warning sign also includes:

[0098] The drive shaft 100 is disposed within the second frame and passes through the upper mounting plate 701 and the lower mounting plate 701 respectively;

[0099] Two bevel gears 110 are respectively mounted on the drive shaft 100 and mesh with the gear ring 907 in the adjustment assembly 90 on the upper mounting plate 701 and the gear ring 907 in the adjustment assembly 90 on the lower mounting plate 701, respectively.

[0100] This pressure-sensitive, adjustable height warning sign also includes:

[0101] Lightning rod 120 is installed on lifting mast 40;

[0102] Two bottom beams 130 are located at the lower part of the first frame 60.

[0103] In this embodiment of the invention, relevant personnel place the pressure-sensitive adjustable lifting warning sign in a suitable position. During this process, some heavy objects can be placed on the base 10 as needed, and the grille assembly 70 and wing plate 80 can be unfolded.

[0104] When the pressure-sensitive adjustable lifting warning sign encounters strong winds, the airflow will blow towards the wing plate 80, thereby causing the entire first frame 60 to rotate around the lifting rod 40 by the bearing seat 30, so that the grille assembly 70 keeps facing the oncoming airflow.

[0105] When the oncoming wind blows towards the grille assembly 70, the airflow passes through the grille plate 702, generating a vortex street. The generated vortex street continues to move backward in the form of a detached vortex to directly above the base 10, where it converges into a low-speed turbulence. This causes the air pressure above the base 10 to be higher than the air pressure of the incoming flow. As a result, the upper surface of the base 10 experiences a downward air pressure difference. This downward pressure creates a restoring torque on the entire pressure-sensitive adjustable lifting warning sign, which partially counteracts the tilting torque of the oncoming airflow blowing towards the main body 50 of the warning sign. Ultimately, this makes the pressure-sensitive adjustable lifting warning sign more stably fixed to the ground.

[0106] Specifically:

[0107] The base 10 is the load-bearing foundation of the overall structure. During assembly, the flange 20 must first be fixed to the upper surface of the base 10 with bolts, and the axis of the flange 20 must be coincident with the central axis of the base 10 to ensure the stress balance of the subsequent structure.

[0108] The bearing housing 30 is connected to the flange 20 via the flange face. The axes of the two must be strictly aligned to avoid jamming when the lifting rod 40 passes through.

[0109] The lower end of the lifting rod 40 passes through the bearing seat 30 and connects to the flange 20, realizing the vertical lifting and circumferential fine adjustment function of the lifting rod 40. The upper end is used to fix the warning sign body 50. The height of the warning sign body 50 can be adjusted by the telescopic structure of the lifting rod 40 according to the actual warning height requirements.

[0110] The first frame 60 is fixed to the outer flange of the bearing seat 30 by bolts and is located 10-15cm above the base 10. A positioning pin hole is reserved on its inner side.

[0111] Both the grille assembly 70 and the wing plate 80 are provided with pin seats on their sides. During assembly, the positioning pin is inserted into the pin hole of the first frame 60 and the pin seat of the grille assembly 70 and the wing plate 80 to achieve a hinged connection.

[0112] The grille assembly 70 needs to be installed in the middle area of ​​the first frame 60, and the wing plates 80 are symmetrically distributed on both sides of the grille assembly 70. Both can rotate around the positioning pin. In the initial state, they need to be fixed in a position parallel to the first frame 60 by the limit buckle.

[0113] It should be noted that two grille assemblies 70 can also be selected, with the two grille assemblies 70 symmetrically distributed on both sides of the lifting rod 40.

[0114] The four mounting plates 701 of the grille assembly 70 (one each on the top, bottom, left, and right sides) are connected by corner brackets to form a second frame, and the connection parts need to be welded for reinforcement;

[0115] The upper and lower ends of multiple grid plates 702 are connected to the upper mounting plate 701 and the lower mounting plate 701 respectively via hinged pivots. The spacing between adjacent grid plates 702 must be consistent to ensure that the airflow is subjected to uniform force when passing through.

[0116] One end of the connecting rod 703 is fixed on the hinge shaft of the grid plate 702, and the groove at the other end needs to be adapted to the slider 705;

[0117] After the slider 705 is embedded in the slide groove, it must be ensured that it can slide smoothly along the slide groove. The other end of the slider 705 is fixed to the slide rail of the slide rail 704 by bolts. The fixed rail of the slide rail 704 is connected to the lower surface of the upper mounting plate 701 by screws.

[0118] The installation of the adjustment component 90 needs to be divided into two groups, upper and lower. The U-shaped connecting seat 902 of the upper adjustment component 90 is fixed to the upper surface of the upper mounting plate 701, and the U-shaped connecting seat 902 of the lower adjustment component 90 is fixed to the lower surface of the lower mounting plate 701.

[0119] After the threaded end of the adjusting shaft 901 passes through the through hole of the U-shaped connecting seat 902, it is screwed to the knob sleeve 904. The non-threaded end is connected to the mounting plate 701 through the T-shaped connecting seat 903. The spring 905 needs to be sleeved on the non-threaded end of the adjusting shaft 901, with one end abutting against the T-shaped connecting seat 903 and the other end abutting against the shoulder of the adjusting shaft 901, so as to ensure that the knob sleeve 904 can achieve self-locking through the spring force after being screwed to the adjusting shaft 901.

[0120] The pipe clamp 906 needs to be tightened in the middle of the adjusting shaft 901, and its other end is welded to the sliding rail of the slide rail 704 to ensure that the adjusting shaft 901 can drive the sliding rail to move along the fixed rail when it rotates.

[0121] The drive shaft 100 vertically penetrates the upper and lower mounting plates 701 of the second frame (bearings are installed at the penetration point). Bevel gears 110 are installed at the upper and lower ends respectively. The two bevel gears 110 need to mesh with the gear ring 907 of the upper adjustment component 90 and the gear ring 907 of the lower adjustment component 90 respectively, so as to realize the function of synchronous adjustment of the upper and lower adjustment components 90 by single shaft drive.

[0122] In addition, the lightning rod 120 needs to be fixed to the top of the lifting mast 40 via a flange;

[0123] When it is necessary to adjust the opening angle of the grid plate 702 according to the wind force, it can be achieved by rotating the knob sleeve 904. When the knob sleeve 904 is rotated, the angle of all grid plates 702 will be adjusted synchronously. The transmission shaft 100 meshes with the gear ring 907 of the adjustment component 90 through the bevel gear 110 at the upper and lower ends, driving the upper and lower knob sleeves 904 to rotate synchronously, realizing the synchronous translation of the sliding rails of the upper and lower slide rails 704, and finally making all grid plates 702 maintain the same tilt angle.

[0124] After adjustment, the spring force of spring 905 will keep the knob sleeve 904 and the adjustment shaft 901 locked in place, preventing the angle from loosening under wind impact.

[0125] Both the wing plate 80 and the grille assembly 70 are hinged to the first frame 60 via a positioning pin, and the first frame 60 is connected to the bearing seat 30. When the wind direction changes, the airflow generates a lateral thrust on the wing plate 80, pushing the wing plate 80 to rotate around the positioning pin, which in turn drives the first frame 60 to rotate around the axis of the bearing seat 30. Ultimately, the grille assembly 70 is automatically adjusted to a position facing the wind direction, ensuring that the airflow can act perpendicularly on the grille assembly 70 and maximizing the use of the airflow to generate a stable torque.

[0126] When encountering winds of level 6 or above, the airflow first acts on the wing plate 80, pushing the first frame 60 to rotate until the grille assembly 70 is facing the airflow.

[0127] At this time, the airflow passes through the grid plate 702 of the grid assembly 70. If the grid plate 702 is at a preset tilt angle, the airflow will be split on the surface of the grid plate 702. Some of the airflow flows downward through the gaps between the grid plates 702, forming a vortex street effect above the base 10. The airflow generates alternating detached vortices behind the grid plate 702, which reduces the airflow velocity on the upper surface of the base 10. According to Bernoulli's principle, the air pressure on the upper surface of the base 10 is higher than the surrounding air pressure, forming a downward pressure.

[0128] The downward pressure is transmitted to the ground through the base 10, which creates a restoring torque on the overall structure and can counteract the tipping torque of the airflow on the main body 50 of the warning sign.

[0129] Meanwhile, the tilt angle of the grille 702 can be adjusted by the adjustment component 90. The higher the wind speed, the greater the tilt angle of the grille 702, which reduces the direct impact of airflow while enhancing the downward pressure generated by the vortex effect, further improving stability.

[0130] The lightning rod 120 at the top of the lifting pole 40 is connected to the base 10 via a wire, and then the base 10 is grounded. In thunderstorms, the lightning rod 120 can guide lightning to the ground and release it, preventing the main body of the warning sign 50 from being damaged by lightning and improving the safety of the equipment under extreme weather conditions.

[0131] In addition, it should be noted that:

[0132] When installed on a hardened road surface, it can be fixed to the ground expansion bolts through the reserved bolt holes of the base 10. The bottom beam 130 increases the contact area with the ground to avoid displacement caused by road vibration.

[0133] If temporary warning is required, a counterweight can be placed on the base 10, which, together with the 0° tilt angle of the grid assembly 70, can enhance the overall anti-rollover capability.

[0134] At the same time, the warning sign body 50 is adjusted to a height of 1.5~2m by the lifting rod 40 to match the driver's line of sight.

[0135] When installed on soft ground, the grid assembly 70 can be fixed by setting ground anchors on the base 10. At this time, the grid plate 702 of the grid assembly 70 can be adjusted to a smaller tilt angle to reduce the scouring of the ground by the airflow. Meanwhile, the wing plate 80 can be adjusted to the maximum angle to improve the sensitivity to wind direction and ensure that the grid assembly 70 is aligned with the wind direction in a timely manner.

[0136] When the tunnel entrance space is narrow, the wing plate 80 can be folded to fit against the first frame 60 using the positioning pin, leaving only the grid assembly 70 in operation;

[0137] At the same time, adjust the lifting rod 40 to lower the height of the warning sign body 50 to avoid interference with the tunnel top structure, and adjust the grating plate 702 to the closed state to reduce airflow disturbance (when the airflow in the tunnel is turbulent, the closed state can avoid the instability of the vortex street effect).

[0138] In summary, the pressure-sensitive adjustable lifting warning sign disclosed in this invention can effectively improve the stability of use under complex weather conditions and adapt to the installation requirements of different scenarios, maintaining a stable working state under various working conditions.

[0139] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pressure-sensitive adjustable lifting warning sign, characterized in that, include: Base (10); A flange (20) is mounted on the base (10) and its axis is set in the vertical direction; A bearing housing (30) is disposed on the flange (20), and its axis coincides with the axis of the flange (20); The lifting rod (40) has one end passing through the bearing seat (30) and the flange (20). The main body of the warning sign (50) is mounted on the lifting rod (40); The first frame (60) is disposed above the base (10) and connected to the bearing seat (30); A grille assembly (70) is disposed within the first frame (60) and is hinged to the first frame (60) by a positioning pin. A wing plate (80) is disposed within the first frame (60) and is hinged to the first frame (60) by a positioning pin.

2. The pressure-sensitive adjustable lifting warning sign as described in claim 1, characterized in that, The grille assembly (70) includes: Four mounting plates (701) are respectively positioned along the top, bottom, left, and right sides, forming a second frame; Multiple grid plates (702), each disposed within the second frame and hinged to the upper mounting plate (701) and the lower mounting plate (701) respectively.

3. The pressure-sensitive adjustable lifting warning sign as described in claim 2, characterized in that, The grille assembly (70) further includes: Multiple connecting rods (703), one end of each of which is respectively disposed on the hinge shaft of each of the grid plates (702), and the other end of each of which is provided with a sliding groove; The slide rail (704) has a fixed rail connected to the mounting plate (701) above it; Multiple sliders (705) are respectively disposed in the groove of each of the connecting rods (703), and each is respectively connected to the sliding rail of the slide rail (704).

4. The pressure-sensitive adjustable lifting warning sign as described in claim 3, characterized in that, Also includes: Two adjustment components (90) are respectively disposed on the upper mounting plate (701) and the lower mounting plate (701), which are used to drive the sliding rail (704) to move.

5. The pressure-sensitive adjustable lifting warning sign as described in claim 4, characterized in that, The adjustment component (90) includes: The adjusting shaft (901) has a threaded end; U-shaped connecting seat (902) is provided on the threaded end of the adjusting shaft (901); A T-shaped connector (903) is provided on the other end of the adjusting shaft (901); A knob sleeve (904) is disposed within the U-shaped connector (902) and screwed to the adjusting shaft (901); A spring (905) is provided on the other end of the adjusting shaft (901) and cooperates with the T-shaped connecting seat (903) to make the knob sleeve (904) and the adjusting shaft (901) self-locking; Pipe clamp (906) is mounted on the adjusting shaft (901) and connected to the sliding rail of the slide rail (704).

6. The pressure-sensitive adjustable lifting warning sign as described in claim 5, characterized in that, The adjustment component (90) further includes: A gear ring (907) is disposed on the knob sleeve (904).

7. The pressure-sensitive adjustable lifting warning sign as described in claim 6, characterized in that, Also includes: A drive shaft (100) is disposed within the second frame and passes through the upper mounting plate (701) and the lower mounting plate (701) respectively. Two bevel gears (110) are respectively mounted on the drive shaft (100) and mesh with the gear ring (907) in the adjustment assembly (90) on the upper mounting plate (701) and the gear ring (907) in the adjustment assembly (90) on the lower mounting plate (701).

8. The pressure-sensitive adjustable lifting warning sign as described in claim 1, characterized in that, Also includes: A lightning rod (120) is mounted on the lifting rod (40).

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