A piezoelectric power generation mechanism for highway speed bumps

Abstract

The present invention belongs to the technical field of highway power generation devices, and specifically relates to a piezoelectric power generation mechanism for highway speed bumps, including a power generation module and a pressure module. The pressure modules are provided with a plurality of them, and the plurality of pressure modules are connected in sequence, and the pressure module located in the first position is connected to the power generation module; the pressure module includes a fixed base and a deformation cavity, and the deformation cavity is fixedly connected to the fixed base, and a power generation chamber for accommodating a mechanical pressure power generation component is formed between the fixed base and the cavity; a non-Newtonian fluid is contained in the deformation cavity. The speed bump pressure power generation mechanism adopts a modular splicing structure, and the number of splicing can be selected as needed to achieve the purpose of adjusting the installation length; at the same time, the modular structural setting is also convenient for transportation. The structural setting of the pressure module places the mechanical pressure power generation component in the power generation chamber, rather than the separate setting in the prior art; so that the overall height is reduced and has a sealing characteristic.

Description

Technical Field

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

[0002] The current speed bump power generation device mainly uses the pressure generated by the passing of vehicles to drive the generator to generate electricity; this structural setting requires the excavation of a corresponding foundation pit on the ground, so that the mechanical transmission components are located in the foundation pit. Due to the setting of the foundation pit, debris and rainwater will accumulate in the foundation pit, and it needs to be cleaned after a long period of operation, otherwise it will affect its normal operation. Moreover, due to the need to excavate the foundation pit, the installation is inconvenient.

[0003] The invention patent with patent announcement number CN112983771B discloses an intelligent power-generating speed bump. When a vehicle passes through quickly, the non-Newtonian fluid will solidify and harden under heavy pressure, forcing the vehicle to slow down. If it passes slowly, it will pass smoothly, reducing the bumpy feeling and discomfort. Two sets of power generation devices are set up to convert part of the mechanical energy transmitted to the speed bump when the vehicle is driving into electrical energy.

[0004] The speed bump also requires the excavation of a corresponding foundation pit to accommodate components such as the gear generator; moreover, its lifting and resetting are driven by springs, and a ratchet structure is set to achieve unidirectional rotation, so its mechanical structure is complex, and once rain and dust enter, it is very easy to cause the operation of the above mechanism to be blocked. In addition, the existing power generation speed bump is set in a whole length, which is not only inconvenient to transport, but also cannot be adjusted in length according to needs. Summary of the invention

[0005] In response to the above technical problems, the present invention provides a piezoelectric power generation mechanism for highway speed bumps, which uses mechanical pressure to generate electricity. Through the overall structural setting, the mechanical pressure power generation part is accommodated in the speed bump, which can effectively reduce the overall height without the need to excavate a foundation pit, and has sealing properties to prevent debris from entering.

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

[0007] A piezoelectric power generation mechanism for a highway speed bump, comprising a power generation module and a pressure module, wherein the pressure modules are provided in plurality, the plurality of pressure modules are connected in sequence, and the pressure module located in the first position is connected to the power generation module;

[0008] The pressure module comprises a fixed base and a deformation cavity, wherein the deformation cavity is fixedly connected to the fixed base, and a power generation chamber for accommodating a mechanical pressure power generation component is formed between the fixed base and the deformation cavity; a non-Newtonian fluid is contained in the deformation cavity;

[0009] The mechanical pressure power generation assembly includes a support top plate and a support swing plate; two support swing plates are provided, and the two support swing plates are arranged in a V shape, and the lower end of each support swing plate is rotatably connected to the fixed base, and the upper end of each support swing plate is in contact with the lower surface of the deformation cavity; the lower end of each support swing plate is fixedly connected to a driving gear, and the fixed base is rotatably connected to an intermediate gear, and the driving gear is meshed with the intermediate gear;

[0010] The support top plate is fixedly connected to the fixed base, there is a gap between the upper part of the support top plate and the lower surface of the deformation cavity, and the driving gear is located below the support top plate; each driving gear is meshed with a power gear, the power gear is fixedly connected to a power transmission shaft, and the power transmission shaft is rotatably connected to the fixed base;

[0011] The corresponding power transmission shafts in several pressure modules are connected in sequence by means of spline connection; the power transmission shaft in the pressure module located at the first position is connected to the generator in the power generation module.

[0012] The two ends of the deformation cavity are provided with sealing plates, which are fixedly connected to the fixed base and seal the power generation chamber; the sealing plates are provided with connecting through holes corresponding to the power transmission shaft, and corresponding rotating seals are provided at the connecting through holes.

[0013] One end of the power transmission shaft is provided with a spline groove, and the other end is provided with a spline shaft corresponding to the spline groove.

[0014] The power generation module is provided with two generators, and each power transmission shaft is connected with a generator respectively.

[0015] The upper end of each supporting swing plate is rotatably connected to a supporting wheel, and contacts the lower surface of the deformation cavity through the supporting wheel.

[0016] The shape of the deformation cavity is arched; an expansion resistance cavity is provided on one side of the deformation cavity; an arc-shaped support plate is hinged on the fixed base, the hinged end of the arc-shaped support plate is located on one side of the deformation cavity, and the lower surface of the arc-shaped support plate contacts the upper surface of the deformation cavity.

[0017] A counterweight connecting rod is provided at the upper end of the arc-shaped supporting plate.

[0018] The arc-shaped support plate is composed of a plurality of arc-shaped teeth which are fixedly connected in sequence.

[0019] The non-Newtonian fluid is filled in a liquid storage bag, and the liquid storage bag is arranged in the deformation cavity.

[0020] The liquid storage bag has the same shape as the deformation cavity.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The speed bump pressure power generation mechanism adopts a modular splicing structure, and the number of splicing can be selected according to needs, so as to achieve the purpose of adjusting the installation length; at the same time, the modular structure setting is also convenient for transportation.

[0023] The structural setting of the pressure module places the mechanical pressure power generation component in the power generation compartment, rather than the separate setting in the prior art, which reduces the overall height and has a sealing property, thereby preventing the intrusion of rainwater and debris, ensuring the normal operation of the mechanical pressure power generation component.

[0024] The structural setting in which both the two support swing plates and the driving gear are meshed with the middle gear makes it possible for when a vehicle passes from one side, the support swing plate at the front is first pressed down, and at the same time, the driving gear meshes with the middle gear to raise and reset the support swing plate at the rear; when the vehicle passes over the support swing plate at the rear, the support swing plate at the front is raised and reset by meshing the driving gear with the middle gear. That is, through the above structural setting, the two support swing plates can be alternately reset by using the vehicle, eliminating the setting of common reset mechanisms such as springs.

[0025] The arc-shaped support plate has multiple functions: on the one hand, its lower surface contacts the upper surface of the deformation cavity, playing a protective role when the vehicle passes through the deformation cavity on the side; on the other hand, when a vehicle passes by quickly, it cooperates with the expansion resistance cavity to form a solid convex structure as a whole, forcing the vehicle to slow down; on the other hand, when the vehicle is driving in the opposite direction, the arc-shaped support plate will tilt up to form a roadblock, preventing the reverse vehicle from passing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the split body of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the power generation module of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the pressure module of the present invention in one direction;

[0029] Figure 4 It is a schematic structural diagram of the pressure module of the present invention in another direction;

[0030] Figure 5 yes Figure 4 A partial enlarged view of the middle A;

[0031] Figure 6 is a schematic diagram of the internal structure of the pressure module of the present invention;

[0032] Figure 7 yes Figure 6 A front view of the structure shown;

[0033] Figure 8It is a schematic diagram of the structure of the mechanical pressure power generation assembly of the present invention in one direction;

[0034] Fig. 9 It is a schematic diagram of the structure of the mechanical pressure power generation assembly of the present invention in another direction;

[0035] Fig.10 It is a schematic diagram of the structure of the deformation cavity and the blocking plate of the present invention;

[0036] Fig.11 It is a schematic diagram of the structure of the liquid storage capsule of the present invention;

[0037] Among them: 1 is a power generation module, 2 is a pressure module, 3 is a fixed base, 4 is a deformation cavity, 5 is a mechanical pressure power generation component, 6 is a power generation chamber, 7 is a support top plate, 8 is a support swing plate, 9 is a driving gear, 10 is an intermediate gear, 11 is a power gear, 12 is a power transmission shaft, 13 is a generator, 14 is a blocking plate, 15 is a connecting through hole, 16 is a spline groove, 17 is a spline shaft, 18 is a support wheel, 19 is an expansion resistance cavity, 20 is an arc support plate, 21 is a counterweight connecting rod, 22 is an arc tooth, 23 is a liquid storage bag, and 24 is a one-way bearing. DETAILED DESCRIPTION

[0038] 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.

[0039] like Figure 1-11 As shown, a piezoelectric power generation mechanism for a highway speed bump includes a power generation module 1 and a pressure module 2. A plurality of pressure modules 2 are provided, and the plurality of pressure modules 2 are connected in sequence. The pressure module 2 located in the first position is connected to the power generation module 1.

[0040] Each pressure module 2 adopts the following structure, specifically including a fixed base 3 and a deformation cavity 4. The deformation cavity 4 is fixedly connected to the fixed base 3. A power generation chamber 6 for accommodating a mechanical pressure power generation component 5 is formed between the fixed base 3 and the deformation cavity 4. The deformation cavity 4 contains a non-Newtonian fluid.

[0041] The mechanical pressure power generation component 5 includes a supporting top plate 7 and a supporting swing plate 8; there are two supporting swing plates 8, and the two supporting swing plates 8 are arranged in a V shape. The lower end of each supporting swing plate 8 is rotatably connected to the fixed base 3, and the upper end of each supporting swing plate 8 is in contact with the lower surface of the deformation cavity 4.

[0042] A driving gear 9 is fixedly connected to the lower end of each supporting swing plate 8 , and an intermediate gear 10 is rotatably connected to the fixed base 3 , and the driving gear 9 is meshed with the intermediate gear 10 .

[0043] When a vehicle passes by one side, the support swing plate 8 at the front is pressed down first, and at the same time, the support swing plate 8 at the rear is lifted and reset by engaging the driving gear 9 with the intermediate gear 10; when the vehicle passes over the support swing plate 8 at the rear, the support swing plate 8 at the front is lifted and reset by engaging the driving gear 9 with the intermediate gear 10.

[0044] The support top plate 7 is fixedly connected to the fixed base 3, and the upper part of the support top plate 7 is higher than the driving gear 9 and there is a gap between it and the lower surface of the deformation cavity 4; that is, the support top plate 7 plays a role in protecting the driving gear 9 to prevent the movement of the driving gear 9 from being obstructed due to the downward pressure of the vehicle.

[0045] Each driving gear 9 is meshed with a power gear 11, and the power gear 11 is fixedly connected with a power transmission shaft 12, and the power transmission shaft 12 is rotatably connected to the fixed base 3; the corresponding power transmission shafts 12 in several pressure modules 2 are connected in sequence by spline connection; the power transmission shaft 12 in the pressure module 2 located in the first position is connected to the generator 13 in the power generation module 1.

[0046] During installation, there is no need to dig a foundation pit, thereby avoiding the accumulation of rainwater and debris; it is only necessary to fix the power generation module 1 and several pressure modules 2 on the ground by means of expansion bolts or the like.

[0047] When a vehicle passes by, the support swing plate 8 at the front is first pressed down, causing the support swing plate 8 at the front to rotate, and the corresponding power transmission shaft 12 is driven to rotate through the driving gear 9 and the power gear 11, thereby driving the corresponding generator 13 to generate electricity; moreover, the support swing rod at the front is engaged with the intermediate gear 10 through the driving gear 9 to lift and reset the support swing plate 8 at the rear.

[0048] As the vehicle moves, when the vehicle presses over the support swing plate 8 at the rear, the support swing plate 8 at the rear rotates, and the corresponding power transmission shaft 12 is driven to rotate through the driving gear 9 and the power gear 11, thereby driving the corresponding generator 13 to generate electricity.

[0049] Through the above-mentioned structural arrangement, the alternating action of the front and rear supporting swing plates 8 can be realized to achieve power generation and resetting.

[0050] Furthermore, blocking plates 14 are provided at both ends of the deformation cavity 4, and the blocking plates 14 are fixedly connected to the fixed base 3 and block the power generation chamber 6; the blocking plates 14 are provided with connecting through holes 15 corresponding to the power transmission shaft 12, and corresponding rotating seals are provided at the connecting through holes 15. The sealing is provided at the connecting through holes 15 to ensure the overall sealing, effectively prevent the entry of debris, and achieve maintenance-free to the greatest extent.

[0051] Furthermore, in order to facilitate the splicing between the power generation module 1 and the pressure module 2, a spline groove 16 is provided at one end of the power transmission shaft 12, and a spline shaft 17 corresponding to the spline groove 16 is provided at the other end. For example: one end of the power transmission shaft 12 in one of the pressure modules 2 is inserted into the other end of the power transmission shaft 12 in another pressure module 2, so as to realize the splicing combination between the pressure modules 2. Similarly, the other end of the power transmission shaft 12 in the first pressure module 2 extends into the power generation module 1 and is connected to the input shaft of the generator 13. Specifically: the spline groove 16 can be a hexagonal groove, and the spline shaft 17 can be a hexagonal prism; of course, a common key connection structure such as a flat key can also be used.

[0052] Furthermore, two generators 13 are provided in the power generation module 1, and each power transmission shaft 12 is connected to a generator 13. That is, when one power transmission shaft 12 rotates, one generator 13 is driven to operate. Specifically, the power transmission shaft 12 and the input shaft of the generator 13 can be connected through a one-way bearing 24, so that the support swing plate 8 will not drive the corresponding generator 13 to rotate during the resetting process, ensuring the one-way rotation of the generator 13. A corresponding rotary seal is provided at the rotation connection between the power transmission shaft 12 and the power generation module 1.

[0053] Furthermore, in order to reduce the resistance between the support swing plate 8 and the deformation cavity 4, a support wheel 18 is rotatably connected to the upper end of each support swing plate 8, and the support wheel 18 contacts the lower surface of the deformation cavity 4. When the support swing plate 8 is pressed down, there is rolling friction with the deformation cavity 4.

[0054] Further, the shape of the deformation cavity 4 is preferably an arch; an expansion resistance cavity 19 is provided on one side of the deformation cavity 4. An arc-shaped support plate 20 is hinged on the fixed base 3, and the hinged end of the arc-shaped support plate 20 is located on one side of the deformation cavity 4, and the lower surface of the arc-shaped support plate 20 contacts the upper surface of the deformation cavity 4.

[0055] The above-mentioned side refers to the side that the vehicle passes first during normal driving; the expansion resistance chamber 19 is provided on this side in order to increase the non-Newtonian fluid that can be accommodated, and also in order to increase the support range of the arc-shaped support plate 20.

[0056] When the vehicle passes normally, the arc support plate 20 will press down the deformation cavity 4 and the support swing plate 8 to generate electricity, and the arc support plate 20 will protect the outer surface of one side of the deformation cavity 4; when the vehicle passes quickly, the arc support plate 20 is supported by the deformation cavity 4 and the non-Newtonian fluid in the expansion resistance cavity 19, forming a solid convex structure as a whole, forcing the vehicle to slow down.

[0057] When the vehicle is going in the opposite direction, the vehicle passes by the other side and presses down the deformation cavity 4 and the arc-shaped support plate 20, so that the arc-shaped support plate 20 on one side is tilted to form a roadblock, thereby preventing the passing of the vehicle going in the opposite direction.

[0058] Furthermore, a counterweight connecting rod 21 is provided at the upper end of the arc-shaped support plate 20 , that is, the arc-shaped support plate 20 is fitted with the deformation cavity 4 by using its own weight.

[0059] Furthermore, the arc-shaped support plate 20 is preferably composed of a plurality of arc-shaped teeth 22 that are fixedly connected in sequence.

[0060] Furthermore, the non-Newtonian fluid can be directly filled in the deformation cavity 4; however, for better installation and replacement, it is arranged in the liquid storage capsule 23, and the liquid storage capsule 23 is arranged in the deformation cavity 4. Specifically, the liquid storage capsule 23 has the same shape as the deformation cavity 4.

[0061] 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 piezoelectric power generation mechanism for a highway speed bump, characterized in that: It comprises a power generation module (1) and a pressure module (2), wherein a plurality of pressure modules (2) are provided, the plurality of pressure modules (2) are connected in sequence, and the pressure module (2) located at the first position is connected to the power generation module (1); The pressure module (2) comprises a fixed base (3) and a deformation cavity (4); the deformation cavity (4) is fixedly connected to the fixed base (3); a power generation chamber (6) for accommodating a mechanical pressure power generation component (5) is formed between the fixed base (3) and the deformation cavity (4); a non-Newtonian fluid is contained in the deformation cavity (4); The mechanical pressure power generation assembly (5) comprises a support top plate (7) and a support swing plate (8); two support swing plates (8) are provided, and the two support swing plates (8) are arranged in a V shape, the lower end of each support swing plate (8) is rotatably connected to the fixed base (3), and the upper end of each support swing plate (8) is in contact with the lower surface of the deformation cavity (4); the lower end of each support swing plate (8) is fixedly connected to a driving gear (9), and an intermediate gear (10) is rotatably connected to the fixed base (3), and the driving gear (9) is meshed with the intermediate gear (10); The support top plate (7) is fixedly connected to the fixed base (3), a gap exists between the upper part of the support top plate (7) and the lower surface of the deformation cavity (4), and the driving gear (9) is located below the support top plate (7); each driving gear (9) is meshed with a power gear (11), the power gear (11) is fixedly connected to a power transmission shaft (12), and the power transmission shaft (12) is rotatably connected to the fixed base (3); The corresponding power transmission shafts (12) in the plurality of pressure modules (2) are connected in sequence by means of a spline connection; the power transmission shaft (12) in the pressure module (2) located at the first position is connected to the generator (13) in the power generation module (1).

2. A piezoelectric power generation mechanism for a highway speed bump according to claim 1, characterized in that: Both ends of the deformation cavity (4) are provided with blocking plates (14), which are fixedly connected to the fixed base (3) and block the power generation chamber (6); the blocking plate (14) is provided with a connecting through hole (15) corresponding to the power transmission shaft (12), and a corresponding rotary seal is provided at the connecting through hole (15).

3. A piezoelectric power generation mechanism for a highway speed bump according to claim 1, characterized in that: One end of the power transmission shaft (12) is provided with a spline groove (16), and the other end is provided with a spline shaft (17) corresponding to the spline groove (16).

4. A piezoelectric power generation mechanism for a highway speed bump according to claim 1, characterized in that: The power generation module (1) is provided with two generators (13), and each power transmission shaft (12) is respectively connected to a generator (13).

5. A piezoelectric power generation mechanism for a highway speed bump according to claim 1, characterized in that: The upper end of each support swing plate (8) is rotatably connected to a support wheel (18), and contacts the lower surface of the deformation cavity (4) through the support wheel (18).

6. A piezoelectric power generation mechanism for a highway speed bump according to claim 1, characterized in that: The deformation cavity (4) is in the shape of an arch; an expansion resistance cavity (19) is provided on one side of the deformation cavity (4); an arc-shaped support plate (20) is hingedly connected to the fixed base (3); the hinged end of the arc-shaped support plate (20) is located on one side of the deformation cavity (4), and the lower surface of the arc-shaped support plate (20) is in contact with the upper surface of the deformation cavity (4).

7. A piezoelectric power generation mechanism for a highway speed bump according to claim 6, characterized in that: A counterweight connecting rod (21) is provided at the upper end of the arc-shaped support plate (20).

8. A piezoelectric power generation mechanism for a highway speed bump according to claim 6, characterized in that: The arc-shaped support plate (20) is composed of a plurality of arc-shaped teeth (22) which are fixedly connected in sequence.

9. A piezoelectric power generation mechanism for a highway speed bump according to claim 1, characterized in that: The non-Newtonian fluid is filled in a liquid storage capsule (23), and the liquid storage capsule (23) is arranged in the deformation cavity (4).

10. A piezoelectric power generation mechanism for a highway speed bump according to claim 9, characterized in that: The liquid storage capsule (23) has the same shape as the deformation cavity (4).

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