A range-extending piezoelectric road power generation device and assembly method

Abstract

The application provides a range-extending road piezoelectric power generation device and an assembling method for improving power generation capacity, and comprises a stroke amplification mechanism, wherein the front side wall and the rear side wall of the upper plate, the middle plate and the lower plate are respectively provided with range-extending connecting rod groups with the same structure, a force transmission rod is vertically and fixedly installed on the top surface of the middle plate and can pass through a force transmission rod guide hole formed in the upper plate, a guide rod is vertically installed on the top surface of the lower plate and can pass through a guide rod guide hole formed in the middle plate and the upper plate, an excitation mechanism is fixedly installed on the bottom of the lower plate and is used for applying pressure to a piezoelectric transducer to excite the piezoelectric transducer to generate piezoelectric power. The stroke amplification mechanism can reasonably amplify the small deformation of the road surface, which is beneficial to the piezoelectric transducer to better play the energy conversion performance, so that the road piezoelectric device has high energy conversion.

Description

Technical Field

[0001] This invention belongs to the field of road engineering technology and relates to piezoelectric power generation technology, specifically to a range-extended road piezoelectric device for improving power generation capacity and its assembly method. Background Technology

[0002] Roads contain abundant mechanical energy, which can be converted into electrical energy through piezoelectric power generation technology. Road piezoelectric power generation technology primarily employs piezoelectric generators laid within the road surface to bear traffic loads. These devices transmit road surface excitation displacement to internal piezoelectric transducers via their internal structure, triggering the piezoelectric effect to capture the road's mechanical energy and convert it into electrical energy. However, the deformation of the road surface structure under current traffic conditions is relatively small, falling short of the excitation displacement required for the piezoelectric transducers to generate electricity, resulting in insufficient energy conversion efficiency. Methods to increase the excitation displacement mainly include external displacement compensation and internal displacement amplification. However, external displacement compensation will affect the safety and comfort of vehicles traveling on the road. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a range-extended road piezoelectric power generation device and assembly method to improve power generation capacity, and to solve the technical problem that the energy conversion efficiency of the piezoelectric power generation device is insufficient due to the small amount of road surface deformation in the existing technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A range-extended road piezoelectric generator for improving power generation capacity includes a stroke amplification mechanism. The stroke amplification mechanism includes an upper plate, a middle plate, and a lower plate arranged in parallel from top to bottom. The top surfaces of the upper plate, the middle plate, and the lower plate are all perpendicular to the vertical.

[0006] The front and rear side walls of the upper plate, middle plate, and lower plate are each equipped with an identical range-extending linkage assembly. The range-extending linkage assembly includes an upper link, a middle link, and a lower link. The upper end of an upper link is hinged to two symmetrical positions on the front side wall of the upper plate. The lower ends of the two upper links are each hinged to the upper end of a middle link. The two middle links are arranged to cross each other. The cross position of the two middle links is hinged to the middle position of the front side wall of the middle plate. The lower ends of the two middle links are each hinged to the upper end of a lower link. The lower ends of the two lower links are each hinged to two symmetrical positions on the front side wall of the lower plate.

[0007] A force transmission rod is vertically fixedly installed on the top surface of the intermediate plate, and the force transmission rod can pass through the force transmission rod guide hole opened on the upper plate; a guide rod is vertically installed on the top surface of the lower plate, and the guide rod can pass through the guide rod guide hole opened on the intermediate plate and the upper plate.

[0008] An excitation mechanism is fixedly installed at the bottom of the lower plate. The excitation mechanism is used to apply pressure to the piezoelectric transducer to excite the piezoelectric transducer to generate piezoelectric power.

[0009] The present invention also has the following technical features:

[0010] Specifically, the excitation mechanism includes multiple long excitation rods arranged longitudinally, each corresponding to a multilayer piezoelectric transducer. The longitudinal front ends and longitudinal rear ends of the multiple long excitation rods are respectively fixedly installed on the excitation rod mounting base, and the top of the excitation rod mounting base is fixedly installed on the bottom surface of the lower plate.

[0011] Furthermore, it also includes a base plate, on which a longitudinally arranged central clamping module is detachably installed. On the lateral sides of the central clamping module, longitudinally arranged side clamping modules are detachably installed. Both the side clamping modules and the central clamping module consist of multiple parallel clamping plates, which are perpendicular to the vertical direction. A multi-layer piezoelectric transducer is clamped and fixed between the side clamping modules and the central clamping module via the clamping plates. The multi-layer piezoelectric transducers are arranged in parallel and perpendicular to the vertical direction. The upper surface of each piezoelectric transducer contacts the long excitation rod.

[0012] Furthermore, the bottom surfaces of the side plates perpendicular to the bottom plate are detachably installed around the top surface of the base plate. The bottom ends of multiple return springs are installed on the top surface of the side plates. The bottom ends of the return springs are installed on the bottom surface of the upper cover plate. During the descent of the upper cover plate, it can contact and press down with the top end of the force transmission rod in the stroke amplification mechanism, thereby driving the entire stroke amplification mechanism to achieve stroke amplification.

[0013] Furthermore, the upper plate of the multiple stroke amplification mechanisms is integrally formed into a complete connecting plate, and the two ends of the connecting plate are fixedly installed on the inner wall of the side plate.

[0014] Preferably, the hinge structure in the range-extended linkage assembly, as well as the hinge structure between the range-extended linkage assembly and the upper plate, middle plate, and lower plate, are all hinged by pins.

[0015] Preferably, the side clamping module and the middle clamping module are detachably installed to the base plate by bolts.

[0016] Preferably, the base plate and the side plate, as well as the side plates themselves, are detachably installed using bolts.

[0017] This invention also protects an assembly method for a range-extended road piezoelectric device with enhanced power generation capacity as described above, the method comprising:

[0018] First, assemble the clamping plate and the piezoelectric transducer.

[0019] Next, assemble the base plate with the side plates on the left and right sides.

[0020] Next, the stroke amplification mechanism and the excitation mechanism are assembled.

[0021] Finally, assemble the front and rear side panels and their top cover.

[0022] Specifically, the method is carried out according to the following steps:

[0023] Step 1: Assembly of the clamping plate and the piezoelectric transducer:

[0024] Secure the bottom clamping plate to the base plate with bolts. Place the piezoelectric transducer on the clamping plate. Then, assemble from bottom to top in the following steps: clamping plate - piezoelectric transducer - clamping plate. During assembly, the two fixed ends of the piezoelectric transducer must be aligned and tightly fitted with the pre-reserved slots on the clamping plate. After a set of piezoelectric transducers is installed, align the non-clamping ends of the piezoelectric transducers and tighten them with bolts.

[0025] Step 2, Assembly of the base plate with the left and right side plates:

[0026] Install the left and right side panels onto the base plate with bolts, ensuring that the outer edges of the side panels are flush with the base plate during installation.

[0027] Step 3: Assembly of the stroke amplification mechanism and the excitation mechanism:

[0028] Align the reserved holes on the vertical plate at the end of the connecting plate with the reserved holes on the left and right side plates and tighten them with bolts. Fix the range extender linkage of the stroke amplification mechanism to the reserved holes on both sides of the connecting plate with pins, and then install the force transmission rod of the stroke amplification mechanism.

[0029] The lower plate of the stroke amplification mechanism and the excitation rod mounting base of the excitation structure adopt an integral structure. After the stroke amplification mechanism is installed, the entire device is placed horizontally. A straight bar is placed at the bottom of the stroke amplification mechanism to ensure that the height of the excitation rod mounting bases on the front and rear sides is consistent. Then, long excitation rods are inserted from bottom to top to ensure that each long excitation rod is in contact with the upper surface of the corresponding piezoelectric transducer of each layer.

[0030] Step 4: Assembly of the front and rear side panels and their top cover:

[0031] After the stroke amplification mechanism is installed, place the front and rear side plates in their respective positions, align them with the reserved holes on the base plate, and tighten them with bolts. After installing the return springs on the top of all the side plates, align the reserved holes on the top cover plate with the return springs and place the top cover plate. Install bolts in the reserved holes at the four corners of the top cover plate to complete the assembly of the range-extended road piezoelectric power generation device that enhances power generation capacity.

[0032] Compared with the prior art, the present invention has the following technical effects:

[0033] (I) The stroke amplification mechanism of the present invention can reasonably amplify the small deformation of the road surface, which is conducive to the piezoelectric transducer to better perform its energy conversion performance, thereby achieving a higher energy conversion of the road piezoelectric device.

[0034] (II) The stroke amplification mechanism of the present invention adopts a linkage structure, which has high sensitivity, high load-bearing capacity, strong adaptability to road deformation, stable displacement amplification effect, and can effectively meet the needs of displacement amplification.

[0035] (III) The range-extended road piezoelectric device for improving power generation capacity of the present invention has a limit groove in each clamping plate in the side clamping module and the middle clamping module, which can accurately fix the clamping plate, prevent it from sliding, and improve the overall integrity of the clamping module.

[0036] (IV) The multiple long excitation rods of the excitation structure are installed together on the side excitation block of the same group in an integral structure, so that the single group of piezoelectric transducers can maintain the same actuation displacement, thereby improving the piezoelectric transduction effect.

[0037] (V) The piezoelectric device designed based on the stroke amplification mechanism avoids the use of external displacement compensation to increase the excitation displacement, and reduces the adverse effects of burying the piezoelectric device in the road on the safety and comfort of the vehicle. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of the stroke amplification mechanism.

[0039] Figure 2 A schematic diagram of the internal assembly relationship of a range-extended road piezoelectric generator designed to enhance power generation capacity.

[0040] Figure 3 This is a schematic diagram of the overall structure of the incentive mechanism.

[0041] Figure 4 This is a schematic diagram showing the assembly relationship between the piezoelectric transducer and the clamping module.

[0042] Figure 5 A schematic diagram of the external assembly relationship of a range-extended road piezoelectric generator to enhance power generation capacity.

[0043] Figure 6 This is a schematic diagram of the integral plate structure.

[0044] The meanings of the labels in the figure are as follows: 1-stroke amplification mechanism, 2-excitation mechanism, 3-piezoelectric transducer, 4-base plate, 5-intermediate clamping module, 6-side clamping module, 7-clamping plate, 8-side plate, 9-reset spring, 10-top cover plate, 11-connecting plate, 12-pin, 13-bolt.

[0045] 101-Upper plate, 102-Middle plate, 103-Lower plate, 104-Range-extended connecting rod assembly, 105-Force transmission rod, 106-Force transmission rod guide hole, 107-Guide rod, 108-Guide rod guide hole.

[0046] 10401 - Upper Link, 10402 - Middle Link, 10403 - Lower Link.

[0047] 201 - Long excitation rod, 202 - Excitation rod mounting base.

[0048] The specific content of the present invention will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0049] It should be noted that, unless otherwise specified, all components, equipment and materials in this invention are based on components, equipment and materials known in the prior art.

[0050] Based on the technical problems described in the background art, in order to avoid adverse effects on road traffic, the internal structure of the device can be optimized by integrating components with displacement amplification function, designing a device structure that satisfies the excitation displacement to increase power generation capacity, and proposing an assembly method for a piezoelectric power generation device with tight cooperation of each component, so as to improve the power generation of the road piezoelectric power generation device, while ensuring road traffic safety and comfort.

[0051] Based on piezoelectric power generation technology, this invention proposes a range-extended road piezoelectric device and its assembly method to enhance power generation capacity. A stroke amplification mechanism is introduced into the piezoelectric device, which can reasonably amplify the deformation of the road surface structure, thereby improving the energy conversion efficiency of the piezoelectric device.

[0052] Following the above technical solutions, specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0053] Example 1:

[0054] This embodiment provides a range-extended road piezoelectric power generation device to enhance power generation capacity, including a stroke amplification mechanism 1, such as... Figure 1As shown, the stroke amplification mechanism 1 includes an upper plate 101, a middle plate 102, and a lower plate 103 arranged in parallel from top to bottom. The top surfaces of the upper plate 101, the middle plate 102, and the lower plate 103 are all arranged perpendicular to the vertical direction.

[0055] like Figure 1 As shown, the front and rear side walls of the upper plate 101, the middle plate 102, and the lower plate 103 are respectively equipped with range-extending linkage assemblies 104 with identical structures. The range-extending linkage assembly 104 includes an upper linkage 10401, a middle linkage 10402, and a lower linkage 10403. The upper end of an upper linkage 10401 is hinged to two symmetrical positions on the front side wall of the upper plate 101. The lower ends of the two upper linkages 10401 are respectively hinged to the upper ends of a middle linkage 10402. The two middle linkages 10402 are arranged to cross each other. The cross position of the two middle linkages 10402 is hinged to the middle position of the front side wall of the middle plate 102. The lower ends of the two middle linkages 10402 are respectively hinged to the upper ends of a lower linkage 10403. The lower ends of the two lower linkages 10403 are respectively hinged to two symmetrical positions on the front side wall of the lower plate 103.

[0056] like Figure 1 As shown, a force transmission rod 105 is vertically fixed on the top surface of the intermediate plate 102, and the force transmission rod 105 can pass through the force transmission rod guide hole 106 opened on the upper plate 101; a guide rod 107 is vertically installed on the top surface of the lower plate 103, and the guide rod 107 can pass through the guide rod guide hole 108 opened on the intermediate plate 102 and the upper plate 101.

[0057] like Figure 2 As shown, an excitation mechanism 2 is fixedly installed at the bottom of the lower plate 103. The excitation mechanism 2 is used to apply pressure to the piezoelectric transducer 3 to excite the piezoelectric transducer 3 to generate piezoelectric power.

[0058] As one specific solution in this embodiment, such as Figure 3 As shown, the excitation mechanism 2 includes multiple long excitation rods 201 arranged along the longitudinal direction. Each long excitation rod 201 corresponds to a multilayer piezoelectric transducer 3. The longitudinal front end and longitudinal rear end of the multiple long excitation rods 201 are respectively fixedly installed on the excitation rod mounting base 202. The top of the excitation rod mounting base 202 is fixedly installed on the bottom surface of the lower plate 103.

[0059] In this embodiment, as Figure 2 As shown, the spatial arrangement of the stroke amplification mechanism 1 is integrated with the excitation mechanism 2. This arrangement integrates the stroke amplification mechanism 1 directly above each excitation rod mounting base 202, which has better coordinated vibration performance and is more suitable for repeated road traffic rolling conditions.

[0060] In this embodiment, preferably, the lower plate 103 of the stroke amplification mechanism 1 and the excitation rod mounting base 202 of the excitation structure 2 adopt an integral structure.

[0061] As a preferred embodiment of this invention, such as Figure 4 As shown, it also includes a base plate 4, with a longitudinally arranged central clamping module 5 detachably installed in the middle of the base plate 4. Laterally arranged side clamping modules 6 are detachably installed on both sides of the central clamping module 5. Both the side clamping modules 6 and the central clamping module 5 are composed of multiple parallel clamping plates 7, which are perpendicular to the vertical direction. A multilayer piezoelectric transducer 3 is clamped and fixed between the side clamping modules 6 and the central clamping module 5 via the clamping plates 7. The multilayer piezoelectric transducers 3 are arranged in parallel and perpendicular to the vertical direction. The upper surface of each piezoelectric transducer 3 contacts the long excitation rod 201.

[0062] As a preferred embodiment of this invention, such as Figure 2 and Figure 5 As shown, the bottom surfaces of the side plates 8 perpendicular to the bottom surface of the bottom plate 4 are detachably installed around the top surface of the bottom plate 4. The bottom ends of multiple return springs 9 are installed on the top surface of the side plates 8. The bottom ends of the return springs 9 are installed on the bottom surface of the top cover plate 10. During the descent of the top cover plate 10, it can contact and press down with the top end of the force transmission rod 105 in the stroke amplification mechanism 1, thereby driving the entire stroke amplification mechanism 1 to realize stroke amplification.

[0063] As a preferred embodiment of this invention, such as Figure 2 and Figure 6 As shown, the upper plate 101 of the multiple stroke amplification mechanisms 1 is integrally formed into a complete connecting plate 11, and the two ends of the connecting plate 11 are fixedly installed on the inner wall of the side plate 8. This enables the multiple stroke amplification mechanisms 1 to operate together, improving the overall integrity of the multiple stroke amplification mechanisms 1.

[0064] In this embodiment, as Figure 1 As shown, the hinge structure in the range extender linkage 104 and the hinge structure between the range extender linkage 104 and the upper plate 101, the middle plate 102 and the lower plate 103 are all hinged by pins 12.

[0065] In this embodiment, as Figure 4 As shown, the side clamping module 6 and the middle clamping module 5 are detachably installed to the base plate 4 by bolts 13.

[0066] In this embodiment, the base plate 4 and the side plate 8, as well as the side plate 8 and the side plate 8, are detachably installed using bolts 13.

[0067] In this embodiment, each clamping plate 7 has a limiting groove on its bottom side, and the upper clamping plate 7 can be clamped onto the side of the lower clamping plate 7 through the limiting groove to prevent it from sliding during installation.

[0068] In this embodiment, the materials of the base plate 4 and the side plate 8 can be stainless steel, structural steel, titanium alloy, hard aluminum alloy, or other metal materials.

[0069] In this embodiment, the clamping plate 7 is preferably made of a material with good insulation and high rigidity, such as a rigid engineering plastic product made of polyamide, modified polypropylene, polytetrafluoroethylene, etc.

[0070] In this embodiment, the preferred material for the return spring 9 is to have good elastic limit and impact toughness, and the material can be carbon steel, low manganese spring steel, silicon manganese spring steel, etc.

[0071] In this embodiment, the preferred material for the pin 12 is an alloy material, stainless steel, or other materials with strong shear resistance.

[0072] In this embodiment, the preferred material for bolt 13 is carbon steel, high-temperature alloy, alloy steel, etc.

[0073] In this preferred embodiment, the range extender linkage 104, which is to withstand repeated impacts from vehicle loads, should have high yield strength and good impact toughness. The material of the range extender linkage 104 can be alloy steel, quenched and tempered steel, or non-quenched and tempered steel.

[0074] In this embodiment, the range-extended road piezoelectric generator with enhanced power generation capacity is used when vehicles on the road apply vertical downward pressure to the upper cover plate 11. The upper cover plate 11 transmits the pressure to the stroke amplification mechanism 1 through the force transmission rod 105. The stroke amplification mechanism 1 amplifies the downward stroke, causing the excitation mechanism 2 to move downward. The long excitation rod 201 in the excitation mechanism 2 applies pressure to the piezoelectric transducer 3. After being compressed, the piezoelectric transducer 3 generates electrical energy through the piezoelectric effect. When the pressure applied to the upper cover plate 11 is removed, the upper cover plate 11 returns to its original position under the action of the return spring 9. The pressure applied to the force transmission rod 105 is removed, the stroke amplification mechanism 1 returns to its initial state, and the excitation mechanism 2 and the piezoelectric transducer 3 also return to their initial states. This cycle repeats repeatedly to achieve piezoelectric power generation.

[0075] To further verify the stroke amplification effect of the present invention, this embodiment tests the piezoelectric power generation device with integrated stroke amplification mechanism, and some test results are shown in Table 1.

[0076] Table 1. Test of Stroke Amplification Effect

[0077]

[0078]

[0079] As shown in Table 1, the range-extended road piezoelectric generator of the present invention has significantly enhanced electrical output characteristics and stable stroke amplification effect, which can significantly improve the actual power generation effect of the road piezoelectric generator.

[0080] Example 2:

[0081] This embodiment provides an assembly method for a range-extended road piezoelectric device to enhance power generation capacity as given in Embodiment 1. The method includes:

[0082] First, the clamping plate 7 and the piezoelectric transducer 3 are assembled.

[0083] Next, assemble the base plate 4 with the side plates 8 on the left and right sides.

[0084] Next, the stroke amplification mechanism 1 and the excitation mechanism 2 are assembled.

[0085] Finally, assemble the front and rear side panels 8 and their upper cover 10.

[0086] Specifically, the method is carried out according to the following steps:

[0087] Step 1: Assembly of clamping plate 7 and piezoelectric transducer 3:

[0088] Secure the bottom clamping plate 7 to the base plate 4 with bolts 13. Place the piezoelectric transducer 3 on the clamping plate 7. Then, assemble from bottom to top in the following steps: clamping plate 7 - piezoelectric transducer 3 - clamping plate 7. During the assembly process, the two fixed ends of the piezoelectric transducer 3 must be aligned and tightly attached to the pre-reserved slots of the clamping plate 7. After a set of piezoelectric transducers 3 is installed, align the non-clamping ends of the piezoelectric transducers 3 and secure them with bolts 13.

[0089] Step 2, assembly of the base plate 4 with the left and right side plates 8:

[0090] The side plates 82 on the left and right sides are installed on the base plate 4 with bolts 13. During the installation process, ensure that the outer side end of the side plate 8 is flush with the base plate 4.

[0091] Step 3, Assembly of the stroke amplification mechanism 1 and the excitation mechanism 2:

[0092] Because the stroke amplification mechanism 1 is quite sensitive, during assembly, the side plates 8 on both sides need to be placed vertically before installing the stroke amplification mechanism 1. Align the reserved holes on the vertical plate at the end of the connecting plate 11 with the reserved holes on the side plates 4 on both sides and tighten them with bolts 13. Fix the range extender linkage 104 of the stroke amplification mechanism 1 to the reserved holes on both sides of the connecting plate 11 with pins 12, and then install the force transmission rod 105 of the stroke amplification mechanism 1.

[0093] For ease of installation, the lower plate 103 of the stroke amplification mechanism 1 and the excitation rod mounting base 202 of the excitation structure 2 are integrated. After the stroke amplification mechanism 1 is installed, the entire device is placed horizontally. A straight bar is placed at the bottom of the stroke amplification mechanism 1 to ensure that the height of the excitation rod mounting base 202 on the front and rear sides is consistent. Then, long excitation rods 201 are inserted from bottom to top to ensure that each long excitation rod 201 is in contact with the upper surface of the corresponding piezoelectric transducer 3.

[0094] Step four, assembly of the front and rear side panels 8 and their upper cover plate 10:

[0095] After the stroke amplification mechanism 1 is installed and the internal actuating parts of the piezoelectric generator are assembled, the front and rear side plates 8 are placed in their respective positions and fastened with bolts 13 by aligning them with the reserved holes on the base plate 4. After installing the return springs 9 on the top of all the side plates 8, the reserved holes of the upper cover plate 10 are aligned with the return springs 9 and the upper cover plate 10 is placed. Bolts 13 are then installed in the reserved holes at the four corners of the upper cover plate 10 to complete the assembly of the range-extended road piezoelectric generator with enhanced power generation capacity.

Claims

1. A range-extended road piezoelectric power generation device for enhancing power generation capacity, characterized in that, The stroke amplification mechanism (1) includes an upper plate (101), a middle plate (102) and a lower plate (103) arranged in parallel from top to bottom. The top surfaces of the upper plate (101), the middle plate (102) and the lower plate (103) are all arranged perpendicular to the vertical direction. The front and rear side walls of the upper plate (101), middle plate (102), and lower plate (103) are respectively equipped with identical range-extending linkage assemblies (104). The range-extending linkage assembly (104) includes an upper linkage (10401), a middle linkage (10402), and a lower linkage (10403). The upper end of an upper linkage (10401) is hinged to two symmetrical positions on the front side wall of the upper plate (101), and the lower ends of the two upper linkages (10401) are respectively connected to the upper end of the upper linkage (10401). The upper ends of two intermediate connecting rods (10402) are each hinged to one another. The two intermediate connecting rods (10402) are arranged to cross each other. The cross position of the two intermediate connecting rods (10402) is hinged to the middle position of the front side wall of the intermediate plate (102). The lower ends of the two intermediate connecting rods (10402) are each hinged to the upper ends of two lower connecting rods (10403). The lower ends of the two lower connecting rods (10403) are respectively hinged to two symmetrical positions on the front side wall of the lower plate (103). A force transmission rod (105) is vertically fixed on the top surface of the intermediate plate (102), and the force transmission rod (105) can pass through the force transmission rod guide hole (106) opened on the upper plate (101); a guide rod (107) is vertically installed on the top surface of the lower plate (103), and the guide rod (107) can pass through the guide rod guide hole (108) opened on the intermediate plate (102) and the upper plate (101). An excitation mechanism (2) is fixedly installed at the bottom of the lower plate (103). The excitation mechanism (2) is used to apply pressure to the piezoelectric transducer (3) to excite the piezoelectric transducer (3) to generate piezoelectric power. The excitation mechanism (2) includes multiple long excitation rods (201) arranged along the longitudinal direction. The long excitation rods (201) correspond one-to-one with the multilayer piezoelectric transducers (3). The longitudinal front end and longitudinal rear end of the multiple long excitation rods (201) are respectively fixedly installed on the excitation rod mounting base (202). The top of the excitation rod mounting base (202) is fixedly installed on the bottom surface of the lower plate (103). It also includes a base plate (4), a longitudinally arranged central clamping module (5) is detachably installed in the middle of the base plate (4), and longitudinally arranged side clamping modules (6) are detachably installed on both sides of the central clamping module (5); the side clamping module (6) and the central clamping module (5) are both composed of multiple parallel clamping plates (7), which are perpendicular to the vertical direction; the side clamping module (6) and the central clamping module (5) are clamped and fixed together by the clamping plates (7), and the multilayer piezoelectric transducers (3) are arranged in parallel and are all perpendicular to the vertical direction; the upper surface of each piezoelectric transducer (3) is in contact with the long excitation rod (201).

2. The range-extended road piezoelectric power generation device for enhancing power generation capacity as described in claim 1, characterized in that, The bottom surface of the base plate (4) is detachably installed around the top surface of the side plate (8) perpendicular to the base plate (4). The bottom ends of multiple return springs (9) are installed on the top surface of the side plate (8). The top ends of the return springs (9) are installed on the bottom surface of the upper cover plate (10). During the descent of the upper cover plate (10), it can contact and press down with the top end of the force transmission rod (105) in the stroke amplification mechanism (1), thereby driving the entire stroke amplification mechanism (1) to realize stroke amplification.

3. The range-extended road piezoelectric power generation device for enhancing power generation capacity as described in claim 2, characterized in that, The upper plate (101) of the multiple stroke amplification mechanisms (1) are integrally formed into a complete connecting plate (11), and the two ends of the connecting plate (11) are fixedly installed on the inner wall of the side plate (8).

4. The range-extended road piezoelectric power generation device for enhancing power generation capacity as described in claim 3, characterized in that, The hinge structure in the range-extended linkage (104) and the hinge structure between the range-extended linkage (104) and the upper plate (101), the middle plate (102) and the lower plate (103) are all hinged by pins (12).

5. The range-extended road piezoelectric power generation device for enhancing power generation capacity as described in claim 3, characterized in that, The side clamping module (6) and the middle clamping module (5) are detachably installed with the base plate (4) by bolts (13).

6. The range-extended road piezoelectric power generation device for enhancing power generation capacity as described in claim 3, characterized in that, The base plate (4) and the side plate (8) are detachably installed together and the side plate (8) is installed together with the side plate (8) by bolts (13).

7. A method for assembling a range-extended road piezoelectric device for enhancing power generation capacity as described in any one of claims 3 to 6, characterized in that, The method includes: First, the clamping plate (7) and the piezoelectric transducer (3) are assembled; Next, assemble the base plate (4) with the side plates (8) on the left and right sides; Next, the stroke amplification mechanism (1) and the excitation mechanism (2) are assembled; Finally, the front and rear side panels (8) and their top cover (10) are assembled.

8. The assembly method of the range-extended road piezoelectric device for enhancing power generation capacity as described in claim 7, characterized in that, This method is performed according to the following steps: Step 1, Assembly of the clamping plate (7) and the piezoelectric transducer (3): Secure the bottom clamping plate (7) to the base plate (4) with bolts (13), place the piezoelectric transducer (3) on the clamping plate (7), and then assemble from bottom to top in the order of clamping plate (7) - piezoelectric transducer (3) - clamping plate (7). During the assembly process, the two fixed ends of the piezoelectric transducer (3) must be aligned and close to the slots reserved in the clamping plate (7). After a set of piezoelectric transducers (3) is installed, align the non-clamping end faces of the piezoelectric transducer (3) and secure them with bolts (13). Step 2, assembly of the base plate (4) with the side plates (8) on the left and right sides: Install the side plates (8) on the left and right sides onto the base plate (4) with bolts (13). During installation, ensure that the outer side end of the side plate (8) is flush with the base plate (4). Step 3, assembly of the stroke amplification mechanism (1) and the excitation mechanism (2): Align the reserved holes on the vertical plate at the end of the connecting plate (11) with the reserved holes on the side plates (8) on the left and right sides and tighten them with bolts (13). Fix the extended linkage group (104) of the stroke amplification mechanism (1) to the reserved holes on both sides of the connecting plate (11) with pins (12). Then install the force transmission rod (105) of the stroke amplification mechanism (1). The lower plate (103) of the stroke amplification mechanism (1) and the excitation rod mounting seat (202) of the excitation structure (2) adopt an integral structure; after the stroke amplification mechanism (1) is installed, the entire device is placed horizontally, and a straight bar is placed at the bottom of the stroke amplification mechanism (1) to ensure that the height of the excitation rod mounting seats (202) on the front and rear sides is consistent. Then, long excitation rods (201) are inserted from bottom to top to ensure that each long excitation rod (201) is in contact with the upper surface of the corresponding piezoelectric transducer (3) of each layer. Step four, assembly of the front and rear side panels (8) and their top cover plate (10): After the stroke amplification mechanism (1) is installed, place the front and rear side plates (8) in the corresponding positions, align them with the reserved holes on the base plate (4) and tighten them with bolts (13). After installing the reset springs (9) on the top of all the side plates (8), align the reserved holes of the upper cover plate (10) with the reset springs (9) and place the upper cover plate (10). Install bolts (13) in the reserved holes at the four corners of the upper cover plate (10) to complete the assembly of the range-extended road piezoelectric power generation device that enhances power generation capacity.

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