A piezoelectric power generation device for highway pavement

Abstract

The present invention belongs to the technical field of piezoelectric power generation devices, and specifically relates to a piezoelectric power generation device for a highway pavement, including a power generation speed bump and a plugging head, wherein two plugging heads are provided, and the two ends of the power generation speed bump are plugged by the two plugging heads; the power generation speed bump includes an elastic speed bump and a supporting speed bump; the supporting speed bump is located inside the elastic speed bump, and there is a gap between the supporting speed bump and the elastic speed bump and a spring is provided; a plurality of piezoelectric plate assemblies are fixedly connected inside the supporting speed bump, and the piezoelectric plate assembly includes a piezoelectric plate body and a counterweight, the upper end of the piezoelectric plate body is fixedly connected to the top inside the supporting speed bump, and the counterweight is hinged to the lower end of the piezoelectric plate body. This power generation device utilizes the impact force generated by the horizontal movement of the supporting speed bump when a vehicle passes by, so that the piezoelectric plate body inside the supporting speed bump vibrates and generates electricity.

Description

Technical Field

[0001] The invention belongs to the technical field of piezoelectric power generation devices, and in particular relates to a piezoelectric power generation device for a highway pavement. Background Art

[0002] The power-generating speed bump is an innovatively designed traffic facility that aims to convert the kinetic energy generated when a vehicle passes over the speed bump into electrical energy.

[0003] The invention patent with patent publication number CN108755474A discloses a power-generating lifting highway speed bump. When the speed bump is subjected to the impact pressure of a vehicle, the cross-link descends, and the piezoelectric cantilever beam is driven to move by moving the slider, hitting the bump to cause it to vibrate and generate electrical energy. When the device loses the impact pressure and is subjected to the restoring force of the spring, the cross-link rises.

[0004] It mainly utilizes the longitudinal displacement caused by lifting to drive the overall movement; however, when the arc-shaped top cover is not pressed down, there is a gap between it and the upper cover plate, and debris is easily accumulated in the gap, which leads to obstruction of downward pressure and limitation of the lifting stroke. Summary of the invention

[0005] In view of the above technical problems, the present invention provides a road piezoelectric power generation device, which uses the impact force generated by the vehicle to drive the piezoelectric plate body inside to vibrate and generate electricity. The power generation device has good sealing performance and can prevent the intrusion of debris.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A piezoelectric power generation device for a highway pavement comprises a power generation speed bump and a plugging head, wherein two plugging heads are provided, and both ends of the power generation speed bump are plugged by the two plugging heads; the power generation speed bump comprises an elastic speed bump and a supporting speed bump; the supporting speed bump is located inside the elastic speed bump, and there is a gap between the supporting speed bump and the elastic speed bump and a spring is provided; when a vehicle passes by, the supporting speed bump is pushed to move horizontally and compress the spring; a plurality of piezoelectric plate assemblies are fixedly connected inside the supporting speed bump, and the piezoelectric plate assembly comprises a piezoelectric plate body and a counterweight, the upper end of the piezoelectric plate body is fixedly connected to the top inside the supporting speed bump, and the counterweight is hinged to the lower end of the piezoelectric plate body.

[0008] A plurality of supporting rollers are arranged at the inner bottom of the elastic speed bump, and the lower surface of the supporting speed bump is in contact with the plurality of supporting rollers; limiting sliding grooves are arranged on both sides of the elastic speed bump, and corresponding limiting sliding plates are arranged on both sides of the supporting speed bump.

[0009] The counterweight hammer comprises a hammer rod and a hammer head. The hammer rod is fixedly connected to the hammer head. The hammer rod is hinged to the lower end of the piezoelectric plate body, and limiting rods are arranged on both sides of the hammer rod.

[0010] The spring is arranged on the right side of the supporting speed bump; and an anti-reverse pit is arranged on the right side of the supporting speed bump.

[0011] A plurality of support columns are fixedly connected inside the support speed reduction belt.

[0012] The two ends of the supporting speed bump are blocked by blocking plates respectively; the blocking plates and the supporting speed bump are connected by bolts.

[0013] The supporting speed bump is provided with a connecting component fixedly connected to a plurality of piezoelectric plate assemblies; the connecting component includes a connecting frame and a connecting track; the connecting track is fixedly connected to the supporting speed bump, the connecting frame is slidably connected to the connecting track, and the two ends of the connecting frame are respectively in contact with the corresponding blocking plates; the connecting frame is provided with a plurality of slots, each piezoelectric plate assembly corresponds to a slot, a corresponding plug block is fixed on the piezoelectric plate body, the plug block is provided with an electrical connecting sheet, and a corresponding elastic pin is provided at the slot.

[0014] A sealing gasket is arranged on the inner side of the plugging head.

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

[0016] By sealing the two ends of the power generation speed bump with two plugging heads, the power generation speed bump can be ensured to be in a relatively closed state, which has good sealing performance and can prevent the intrusion of debris on the road surface. At the same time, the power generation equipment uses the impact force generated by the horizontal movement of the supporting speed bump when the vehicle passes by, so that the piezoelectric plate body in the supporting speed bump vibrates and generates electricity.

[0017] A counterweight is provided to increase the swing amplitude of the piezoelectric plate body. A support roller is provided to reduce the resistance during the movement of the speed bump. A connecting assembly is provided to facilitate the installation and replacement of the piezoelectric plate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the plugging head of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the power generation speed bump of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the power generation speed bump of the present invention;

[0022] Figure 5 yes Figure 4 The structural diagram of the middle A direction;

[0023] Figure 6 is a cross-sectional view of the power generation speed bump of the present invention;

[0024] Figure 7 It is a schematic diagram of the connection structure between the connection frame and the piezoelectric plate assembly of the present invention;

[0025] Figure 8 yes Figure 7 A partial enlarged view of point B in the middle;

[0026] Fig. 9 yes Figure 7 A front view of the structure shown;

[0027] Among them: 1 is a power generation speed bump, 2 is a plugging head, 3 is an elastic speed bump, 4 is a supporting speed bump, 5 is a spring, 6 is a piezoelectric plate assembly, 7 is a piezoelectric plate body, 8 is a counterweight hammer, 9 is a supporting roller, 10 is a limiting slide groove, 11 is a limiting slide plate, 12 is a hammer rod, 13 is a hammer head, 14 is a limiting rod, 15 is an anti-retrograde pit, 16 is a supporting column, 17 is a plugging plate, 18 is a connecting assembly, 19 is a connecting frame, 20 is a connecting track, 21 is a slot, 22 is an insert block, 23 is an electrical connecting sheet, 24 is an elastic pin, and 25 is a sealing gasket. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] like Figure 1-9 As shown, a piezoelectric power generation device for a highway pavement includes a power generation speed bump 1 and a plugging head 2. Two plugging heads 2 are provided, and two ends of the power generation speed bump 1 are plugged by the two plugging heads 2. During installation, the power generation speed bump 1 is first fixed to the ground by expansion bolts, and then the two plugging heads 2 are brought into contact with the two end surfaces of the power generation speed bump 1 for plugging, and finally the two plugging heads 2 are fixedly connected to the ground by expansion bolts.

[0030] The power generation speed bump 1 includes an elastic speed bump 3 and a supporting speed bump 4; both ends of the elastic speed bump 3 and the supporting speed bump 4 are open structures. The supporting speed bump 4 is located inside the elastic speed bump 3, and there is a gap between the supporting speed bump 4 and the elastic speed bump 3 and a spring 5 is provided. When a vehicle passes by, the elastic speed bump 3 is deformed and pushes the supporting speed bump 4 to move horizontally, and the compression spring 5 generates elastic potential energy; after the vehicle passes, the compression spring 5 releases the elastic potential energy, and the supporting speed bump 4 is reset. The arc-shaped top of the elastic speed bump 3 can be made of rubber or other materials, and its bottom is preferably made of metal, and the arc-shaped top and the bottom can be fixedly connected by bolting; the supporting speed bump 4 is preferably made of metal, which plays a role in supporting the vehicle.

[0031] Several piezoelectric plate assemblies 6 are fixedly connected in the support speed bump 4. The piezoelectric plate assembly 6 includes a piezoelectric plate body 7 and a counterweight 8. The upper end of the piezoelectric plate body 7 is fixedly connected to the top of the support speed bump 4, and the counterweight 8 is hinged to the lower end of the piezoelectric plate body 7. In order to facilitate disassembly and assembly, the counterweight 8 and the piezoelectric plate body 7 are detachably hinged.

[0032] When a vehicle passes by, the impact force generated by pushing the support speed bump 4 to move horizontally causes the piezoelectric plate body 7 in the support speed bump 4 to vibrate and generate electricity. By adding a counterweight by the counterweight hammer 8, the shaking amplitude of the piezoelectric plate body 7 can be increased. Specifically: the piezoelectric plate body 7 is electrically connected to a corresponding energy storage device to store the generated electrical energy.

[0033] Furthermore, in order to reduce friction, a plurality of support rollers 9 are provided at the inner bottom of the elastic speed bump 3, and the lower surface of the support speed bump 4 is in contact with the plurality of support rollers 9, so that rolling friction occurs between the support speed bump 4 and the elastic speed bump 3.

[0034] Limiting slide grooves 10 are provided on both sides of the bottom of the elastic speed bump 3, and corresponding limiting slide plates 11 are provided on both sides of the supporting speed bump 4, and the limiting slide plates 11 are slidably connected with the limiting slide grooves 10. At the same time, the limiting slide grooves 10 can limit the range of motion of the limiting slide plate 11, thereby limiting the range of motion of the supporting speed bump 4.

[0035] Further, the counterweight 8 preferably adopts the following structure, including a hammer rod 12 and a hammer head 13, the hammer rod 12 is fixedly connected to the hammer head 13, and the hammer rod 12 is hinged to the lower end of the piezoelectric plate body 7. Limit rods 14 are arranged on both sides of the hammer rod 12, and the limit rods 14 abut against the lower end of the piezoelectric plate body 7, thereby limiting the swing amplitude of the counterweight 8.

[0036] Furthermore, the spring 5 is arranged on the right side of the supporting speed bump 4; and an anti-reverse pit 15 is arranged on the right side of the supporting speed bump 4. When a vehicle reverses and passes through the right side of the speed bump, due to the arrangement of the anti-reverse pit 15, a greater resistance is generated when the vehicle passes, thereby preventing the vehicle from passing.

[0037] Furthermore, in order to improve the support performance of the speed bump 4 , a plurality of support columns 16 are fixedly connected inside the speed bump 4 .

[0038] Furthermore, in order to facilitate installation and replacement, the two ends of the support speed bump 4 are open structures; the openings at the two ends of the support speed bump 4 are blocked by blocking plates 17 respectively; the blocking plates 17 are connected to the support speed bump 4 by bolts. In addition, a connection assembly 18 fixedly connected to the plurality of piezoelectric plate assemblies 6 is provided on the support speed bump 4.

[0039] The connection assembly 18 includes a connection frame 19 and a connection track 20; the connection track 20 is fixedly connected to the support speed bump 4, the connection frame 19 is slidably connected to the connection track 20, and both ends of the connection frame 19 are respectively in contact with the corresponding blocking plate 17. That is, when the blocking plate 17 is connected to the support speed bump 4 by bolts, the connection frame 19 can be blocked, thereby limiting the movement of the connection frame 19 and playing a fixing role.

[0040] A plurality of slots 21 are provided on the connection frame 19, and each piezoelectric plate assembly 6 corresponds to a slot 21. A corresponding plug block 22 is fixed on the piezoelectric plate body 7, and an electrical connection sheet 23 is provided on the plug block 22. The electrical connection sheet 23 is electrically connected to the piezoelectric plate body 7; a corresponding elastic plug pin 24 is provided at the slot 21, and the elastic plug pin 24 contacts the electrical connection sheet 23. The elastic plug pin 24 is electrically connected to the energy storage device.

[0041] The piezoelectric plate body 7 generates vibration and electric energy, and the generated electric energy is transferred to the energy storage device through the electrical connection sheet 23 and the elastic pin 24 for energy storage.

[0042] During installation, each piezoelectric plate assembly 6 is inserted into the corresponding slot 21, and the elastic pin 24 is in contact with the electrical connection piece 23; then the connection frame 19 is plugged into the connection track 20. After plugging, the lower surface of the connection track 20 is in contact with the plug block 22, and the plug block 22 is pushed down to deform the elastic pin 24, that is, the elastic pin 24 is in close contact with the electrical connection piece 23, ensuring a firm electrical connection between the two. When any piezoelectric plate assembly 6 is damaged, the connection frame 19 is pulled out, and the corresponding piezoelectric plate assembly 6 is pulled out and replaced.

[0043] Furthermore, a sealing gasket 25 is provided on the inner side surface of the plugging head 2, and the sealing gasket 25 is in contact with both ends of the elastic speed bump 3 to perform sealing, thereby improving the sealing effect.

[0044] Only the preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. A road piezoelectric power generation device, characterized in that: The invention comprises a power generation speed bump (1) and a plugging head (2), wherein two plugging heads (2) are provided, and two ends of the power generation speed bump (1) are plugged by the two plugging heads (2); the power generation speed bump (1) comprises an elastic speed bump (3) and a supporting speed bump (4); the supporting speed bump (4) is located inside the elastic speed bump (3), and there is a gap between the supporting speed bump (4) and the elastic speed bump (3), and a spring (5) is provided; when a vehicle passes by, the supporting speed bump (4) is pushed to move horizontally and compress the spring (5); a plurality of piezoelectric plate assemblies (6) are fixedly connected inside the supporting speed bump (4), and the piezoelectric plate assemblies (6) comprise a piezoelectric plate body (7) and a counterweight (8); the upper end of the piezoelectric plate body (7) is fixedly connected to the top of the supporting speed bump (4), and the counterweight (8) is hinged to the lower end of the piezoelectric plate body (7).

2. A road piezoelectric power generation device according to claim 1, characterized in that: A plurality of support rollers (9) are arranged at the inner bottom of the elastic speed bump (3), and the lower surface of the support speed bump (4) is in contact with the plurality of support rollers (9); limiting slide grooves (10) are arranged on both sides of the elastic speed bump (3), and corresponding limiting slide plates (11) are arranged on both sides of the support speed bump (4).

3. A road piezoelectric power generation device according to claim 1, characterized in that: The counterweight hammer (8) comprises a hammer rod (12) and a hammer head (13), wherein the hammer rod (12) is fixedly connected to the hammer head (13), the hammer rod (12) is hinged to the lower end of the piezoelectric plate body (7), and limit rods (14) are provided on both sides of the hammer rod (12).

4. A road piezoelectric power generation device according to claim 1, characterized in that: The spring (5) is arranged on the right side of the supporting speed bump (4); and an anti-reverse pit (15) is arranged on the right side of the supporting speed bump (4).

5. A road piezoelectric power generation device according to claim 1 or 4, characterized in that: A plurality of support columns (16) are fixedly connected inside the support speed bump (4).

6. A road piezoelectric power generation device according to claim 1, characterized in that: Both ends of the supporting speed bump (4) are blocked by blocking plates (17) respectively; the blocking plates (17) and the supporting speed bump (4) are connected by bolts.

7. A road piezoelectric power generation device according to claim 6, characterized in that: The supporting speed bump (4) is provided with a connecting assembly (18) fixedly connected to a plurality of piezoelectric plate assemblies (6); the connecting assembly (18) comprises a connecting frame (19) and a connecting track (20); the connecting track (20) is fixedly connected to the supporting speed bump (4), the connecting frame (19) is slidably connected to the connecting track (20), and two ends of the connecting frame (19) are respectively in contact with corresponding blocking plates (17); the connecting frame (19) is provided with a plurality of slots (21), each piezoelectric plate assembly (6) corresponds to a slot (21), a corresponding plug block (22) is fixedly provided on the piezoelectric plate body (7), an electrical connecting sheet (23) is provided on the plug block (22), and a corresponding elastic plug pin (24) is provided at the slot (21).

8. A road piezoelectric power generation device according to claim 7, characterized in that: A sealing gasket (25) is provided on the inner side surface of the plugging head (2).

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