Floor drain stamping apparatus

Abstract

The present application relates to floor drain production technical field, especially floor drain stamping equipment, including stamping table and lower mould body, the side wall of stamping table is installed with a pair of DC electromagnet, the upper end of lower mould body is equipped with outer positioning hole and inner positioning hole, the inside of stamping table is equipped with gas compression cavity, the inside of gas compression cavity is equipped with outer positioning demagnetization mechanism, the bottom of stamping table is equipped with rebound groove, the inside of rebound groove is equipped with inner positioning rebound mechanism, the side wall of stamping table is equipped with side suction groove. Advantages are that: through outer positioning demagnetization mechanism and inner positioning rebound mechanism, the installation position of lower mould body is positioned, at the same time, lower mould body is formed with constraint, guarantee that stamping process is carried out smoothly, and the heat absorption of demagnetization process is used to realize the cooling treatment of outer punch, so that the practical life of punch is improved, and the rebound process can guarantee that material can be smoothly demoulded after stamping, so as to be convenient for quick replacement and collection.

Description

Technical Field

[0001] The present invention relates to the technical field of floor drain production, and in particular to a floor drain stamping device. Background Art

[0002] A floor drain is a drainage device that connects the ground to the drainage pipe system. The main purpose of a floor drain is to remove ground water, water stains and some solid objects. Floor drains are generally used more in kitchens. Whether it is a kitchen in a large hotel or a restaurant, or a small restaurant, there are basically floor drains. Bathrooms also have floor drains. Usually, places with high water consumption will have floor drains.

[0003] Steel floor drains have fast drainage speed and will not rot, and are widely used. The general production process is to stamp steel plates with the help of a stamping machine. Due to the small size of floor drains, the size of the punch in the stamping equipment is correspondingly small, and the demand for floor drains is large, so generally a large number of products need to be stamped continuously. The extrusion generated by the stamping process will accumulate heat, which will cause the temperature of the continuously processed punch to rise, thereby increasing the fatigue strength of the punch, and thus reducing the practical life of the punch. The existing stamping equipment does not promptly cool down the high temperature generated by the instantaneous extrusion when extrusion occurs, resulting in the punch being in a high-frequency and high-temperature working environment, which makes the punch have certain defects. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the punch is easily damaged, and to propose a floor drain punching device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a floor drain stamping equipment, comprising a stamping table and a lower mold body, a pair of DC electromagnets are installed on the side wall of the stamping table, an external positioning hole and an internal positioning hole are provided at the upper end of the lower mold body, a gas compression chamber is provided inside the stamping table, an external positioning demagnetization mechanism is provided inside the gas compression chamber, a rebound groove is provided at the bottom of the stamping table, an internal positioning rebound mechanism is provided inside the rebound groove, a side suction groove is provided on the side wall of the stamping table, a side suction stabilization mechanism is provided inside the side suction groove, a top suction groove is provided on the upper part of the stamping table, a top suction groove is provided inside the top suction placement mechanism, a side suction hole is provided on the side wall of the lower mold body, the side suction hole corresponds to the position of the side suction stabilization mechanism, and a top suction hole is provided on the upper end of the lower mold body, the top suction hole corresponds to the position of the top suction placement mechanism.

[0006] In the above-mentioned floor drain stamping equipment, the external positioning and demagnetization mechanism includes a demagnetization drive component and a demagnetization and cooling component. The demagnetization drive component includes a piston plate that is sealed and slidably connected to the inner wall of the gas compression chamber. An external positioning column is fixed to the upper end of the piston plate. The external positioning column passes through the external positioning hole. A compression spring is fixed to the piston plate and the inner bottom of the gas compression chamber.

[0007] In the above-mentioned floor drain stamping equipment, a driving chamber is provided at the lower part of the stamping table, the inner wall of the driving chamber is rotatably connected to the main shaft, the side wall of the main shaft is fixed with a driving blade, the bottom of the gas compression chamber and the driving chamber are respectively penetrated by an air intake hole and an air exhaust hole, the side wall of the gas compression chamber is provided with an air injection hole connected to the driving chamber, and a one-way valve is provided inside the air injection hole and the air intake hole.

[0008] In the above-mentioned floor drain stamping equipment, a refrigeration chamber is opened on the upper part of the stamping table, the inner wall of the refrigeration chamber is rotatably connected to a magnetized rod, the side wall of the magnetized rod is fixed with a magnetized needle, the upper end of the main shaft extends through the refrigeration chamber, and the side wall of the main shaft located inside the refrigeration chamber is fixed with a demagnetization rod, and the refrigeration chamber is filled with dimethylamine gas.

[0009] In the above-mentioned floor drain stamping equipment, the side suction stabilizing mechanism includes a mounting block fixed inside the side suction groove, the side wall of the mounting block is connected to a side suction plate through a side suction spring, the side suction plate is sealed and slidably connected to the inner wall of the side suction groove, and a plurality of side suction holes are provided and connected to the inside of the side suction groove.

[0010] In the above-mentioned floor drain stamping equipment, the internal positioning rebound mechanism includes a rebound plate connected to the bottom of the rebound groove through a connecting spring, the upper end of the rebound plate is fixed with an internal positioning column, the internal positioning column passes through the internal positioning hole, and the inner wall of the rebound groove is fixed with a piezoelectric ring.

[0011] In the above-mentioned floor drain stamping equipment, a slow-release chamber is provided at the lower part of the stamping table, and the inner wall of the slow-release chamber is sealed and slidably connected with a driving plate. The driving plate and the inner bottom of the slow-release chamber are jointly fixed with a slow-release spring, and the upper end of the driving plate is fixed with an ejector rod, which extends into the rebound groove and is directly below the rebound plate. The upper part of the slow-release chamber is filled with electrorheological fluid, and the piezoelectric ring is made of piezoelectric ceramics and supplies power to the electrorheological fluid after generating electricity.

[0012] In the above-mentioned floor drain stamping equipment, the top suction placement mechanism includes a suction plate that is sealed and slidably connected to the inner wall of the top suction groove. The suction plate and the end of the top suction groove are jointly fixed with a bending piece, and the bending piece is a bent memory alloy. The side wall of the top suction groove is installed with an exhaust sleeve, and the exhaust sleeve is an elastic tube and is connected to the top suction hole.

[0013] Compared with the existing technology, the advantages of the present invention are:

[0014] The outer positioning column matches with the outer positioning hole, so as to realize the positioning installation of the lower die body. The outer positioning column is pushed downward to push the piston plate downward, so as to make the piston plate extrude the gas in the gas compression cavity, and make the gas high-speed spray into the driving cavity from the jet hole, so as to make the driving blade be impacted by the high-speed airflow to drive the main shaft to rotate, and realize effective driving.

[0015] The demagnetization rod can collide with the magnetized needle, so that the originally magnetic magnetized needle is demagnetized, and the demagnetization process is accompanied by heat absorption. The dimethylamine gas is used as heat to the medium, so as to effectively cool the surrounding environment, so that the overall temperature of the punching table and the lower die body is reduced, so that the heat generated by extrusion in the punching process is absorbed in time and effectively, so that the punch can be effectively protected, and the practical life of the punching equipment is greatly improved.

[0016] At the moment of demagnetization, the temperature in the refrigeration cavity is instantaneously reduced, so that the boiling point of the dimethylamine gas is instantaneously reduced from gas to liquid, so that the air pressure in the refrigeration cavity is reduced, so that the side suction plate slides under the action of external air pressure, so as to extract the air in the side suction hole as supplement, so that the side wall of the product in the punching process is more attached to the lower die body under the action of air pressure, so that the punching quality of the product is effectively improved.

[0017] The rebound plate is effectively pushed upward under the action of strong force, so as to push the punched material to separate from the lower die body. Because of the time delay of spring deformation, the external punch has separated from the lower die body, so as to realize effective demolding without affecting the safety of the punch and the quality of the product.

[0018] The magnetization process is accompanied by heat release, so that the state of the equipment is restored, and the temperature around is increased, so as to reach the metamorphic temperature of the memory alloy, so that the bending piece pulls the suction plate to move, so as to extract the gas in the top suction hole through the suction sleeve, so that the plate is better attached to the adsorption.

[0019] In summary, the outer positioning demagnetization mechanism and the inner positioning rebound mechanism realize the positioning of the installation position of the lower die body, constrain the lower die body, ensure the smooth progress of the punching process, use the heat absorption of the demagnetization process to cool the external punch, improve the practical life of the punch, and the rebound process can ensure that the material can be smoothly demolded after the punching is finished, so as to facilitate quick replacement and collection, improve the punching efficiency, the top suction placing mechanism can assist the initial placement of the plate, so as to reduce the operation difficulty, and the side suction stabilizing mechanism can improve the stability of the side wall during the material punching process, and improve the punching efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1This is a structural schematic diagram of a floor drain punching device proposed by the present invention;

[0021] Figure 2 A top view of a floor drain punching device proposed by the present invention;

[0022] Figure 3 A half-sectioned isometric view of a floor drain punching device proposed by the present invention;

[0023] Figure 4 A half-section front view of a floor drain punching device proposed by the present invention;

[0024] Figure 5 This is a structural schematic diagram of a lower mold body of a floor drain stamping device proposed by the present invention;

[0025] Figure 6 A top view of the lower die body of a floor drain stamping device proposed by the present invention;

[0026] Figure 7 A partial sectional isometric view of a floor drain punching device proposed by the present invention;

[0027] Figure 8 A partial cross-sectional top view of a floor drain punching device proposed by the present invention;

[0028] Figure 9 for Figure 8 A magnified schematic diagram of part A;

[0029] Figure 10 for Figure 4 An enlarged schematic diagram of part B;

[0030] Figure 11 This is a structural schematic diagram of the main shaft portion of a floor drain stamping device proposed by the present invention;

[0031] Figure 12 This is a structural schematic diagram of the driving plate part of a floor drain stamping device proposed by the present invention.

[0032] In the figure: 1 punching table, 101 DC electromagnet, 2 lower mold body, 201 outer positioning hole, 202 inner positioning hole, 203 top suction hole, 204 side suction hole, 3 gas compression chamber, 301 compression spring, 302 piston plate, 303 outer positioning column, 304 drive chamber, 305 injection hole, 306 suction hole, 307 exhaust hole, 308 main shaft, 309 drive blade, 310 refrigeration chamber, 311 Magnetizing rod, 312 magnetizing needle, 313 demagnetizing rod, 4 rebound grooves, 401 connecting spring, 402 rebound plate, 403 inner positioning column, 404 piezoelectric ring, 405 slow-release chamber, 406 slow-release spring, 407 driving plate, 408 ejector rod, 5 side suction grooves, 501 mounting block, 502 side suction spring, 503 side suction plate, 6 top suction grooves, 601 bending piece, 602 suction plate, 603 exhaust sleeve. Implementation Method

[0033] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Example

[0034] Reference Figure 1-12 A floor drain stamping device includes a stamping platform 1 and a lower mold body 2. The lower mold body 2 is placed in the stamping platform 1. The stamping plate is placed on the lower mold body 2. The stamping action is performed by an external stamping head to achieve the stamping forming of the external structure of the floor drain. A pair of DC electromagnets 101 are installed on the side walls of the stamping platform 1. When the DC electromagnets 101 are energized, a stable magnetic field is generated, which can magnetize the internal structure.

[0035] An outer positioning hole 201 and an inner positioning hole 202 are provided at the upper end of the lower die body 2, a gas compression chamber 3 is provided inside the stamping table 1, an outer positioning demagnetization mechanism is provided inside the gas compression chamber 3, a rebound groove 4 is provided at the bottom of the stamping table 1, an inner positioning rebound mechanism is provided inside the rebound groove 4, the installation position of the lower die body 2 is positioned by the outer positioning demagnetization mechanism and the inner positioning rebound mechanism, and the lower die body 2 is constrained at the same time to ensure that the stamping process proceeds smoothly, and the heat absorption of the demagnetization process is utilized to achieve the cooling treatment of the external punch, so that the practical life of the punch is improved, and the rebound process can ensure that the material can be smoothly demoulded after the stamping is completed, which is convenient for rapid replacement and collection, thereby improving the stamping efficiency;

[0036] The side wall of the stamping table 1 is provided with a side suction groove 5, the inside of the side suction groove 5 is provided with a side suction stabilizing mechanism, the upper part of the stamping table 1 is provided with a top suction groove 6, the inside of the top suction groove 6 is provided with a top suction placing mechanism, the top suction placing mechanism can assist the initial placement of the plate, thereby reducing the operation difficulty, improving the stamping efficiency, the side wall of the lower die body 2 is provided with a side suction hole 204, the side suction hole 204 corresponds to the position of the side suction stabilizing mechanism, the side suction stabilizing mechanism improves the stability of the side wall during the material stamping process, improves the stamping efficiency, and the upper end of the lower die body 2 is provided with a top suction hole 203, the top suction hole 203 corresponds to the position of the top suction placing mechanism.

[0037] The outer positioning demagnetization mechanism comprises a demagnetization driving assembly and a demagnetization cooling assembly, the demagnetization driving assembly comprises a piston plate 302 in sealing sliding connection with the inner wall of the gas compression cavity 3, the upper end of the piston plate 302 is fixed with an outer positioning column 303, the outer positioning column 303 penetrates through the outer positioning hole 201, the outer positioning column 303 is matched with the outer positioning hole 201, thereby realizing the positioning and installation of the lower die body 2, and the piston plate 302 is fixed with a compression spring 301 at the inner bottom of the gas compression cavity 3, in the stamping process, the outer positioning column 303 will be downwardly moved under the pressure.

[0038] The lower part of the stamping table 1 is provided with a driving cavity 304, the inner wall of the driving cavity 304 is rotatably connected with a main shaft 308, the side wall of the main shaft 308 is fixed with a driving blade 309, the bottom of the gas compression cavity 3 and the driving cavity 304 are respectively provided with an air suction hole 306 and an air exhaust hole 307, the side wall of the gas compression cavity 3 is provided with a gas injection hole 305 in communication with the driving cavity 304, the inside of the gas injection hole 305 and the air suction hole 306 is respectively provided with a one-way valve, the outer positioning column 303 is downwardly moved to push the piston plate 302 to be downwardly moved, thereby enabling the piston plate 302 to extrude the gas in the gas compression cavity 3 to be high-speed injected into the driving cavity 304 from the gas injection hole 305, thereby enabling the driving blade 309 to be impacted by the high-speed airflow to drive the main shaft 308 to rotate, thereby realizing effective driving.

[0039] The upper part of the stamping table 1 is provided with a refrigeration cavity 310, the inner wall of the refrigeration cavity 310 is rotatably connected with a magnetizing rod 311, the magnetizing rod 311 is provided with a plurality of distribution around the main shaft 308, the side wall of the magnetizing rod 311 is fixed with a magnetizing needle 312, the magnetizing needle 312 is a small needle body with magnetism, the upper end of the main shaft 308 extends into the refrigeration cavity 310, the rotation connection position of the main shaft 308 is sealed, air leakage is avoided, the side wall of the main shaft 308 located in the refrigeration cavity 310 is fixed with a demagnetization rod 313, the demagnetization rod 313 corresponds to the position of the magnetizing needle 312, the refrigeration cavity 310 is filled with dimethylamine gas;

[0040] When the main shaft 308 is impacted by the airflow and rotates at high speed, the degaussing rod 313 will be quickly rotated, and then the degaussing rod 313 can collide with the magnetized needle 312, and then the originally magnetic magnetized needle 312 can be degaussed, and the degaussing process is accompanied by heat absorption, and the dimethylamine gas is used as heat to the medium, so that the surrounding environment is effectively cooled, so that the overall temperature of the punching table 1 and the lower die body 2 is reduced, and then the heat generated by the punch during the punching process due to extrusion is effectively absorbed, so that the punch can be effectively protected, and then the practical life of the punching equipment is greatly improved.

[0041] The side suction stabilizing mechanism includes a mounting block 501 fixed in the side suction groove 5, and the side wall of the mounting block 501 is connected with a side suction plate 503 through a side suction spring 502. The side suction plate 503 is in sealing sliding connection with the inner wall of the side suction groove 5, and the side suction hole 204 is provided with a plurality of side suction holes and is connected with the inside of the side suction groove 5. At the moment of degaussing, the temperature inside the refrigeration cavity 310 is instantaneously reduced, so that the boiling point of the dimethylamine gas is lowered from gaseous to liquid, thereby reducing the air pressure inside the refrigeration cavity 310, so that the side suction plate 503 slides under the action of external air pressure, thereby being able to extract air inside the side suction hole 204 as a supplement, thereby causing the side wall of the product during the punching process to be more closely attached to the lower die body under the action of air pressure, so that the punching quality of the product is effectively improved.

[0042] The inner positioning rebound mechanism includes a rebound plate 402 connected with the bottom of the rebound groove 4 through a connecting spring 401, and the upper end of the rebound plate 402 is fixed with an inner positioning column 403 which penetrates the inner positioning hole 202. The inner positioning column 403 cooperates with the outer positioning column 303 to jointly ensure the effective positioning of the lower die body 2. The inner wall of the rebound groove 4 is fixed with a piezoelectric ring 404. When the punching punch moves to the bottom position, the inner positioning column 403 will be pressed downward, and then the punch will be reset upward. The downward movement of the inner positioning column 403 will cause the rebound plate 402 to finally collide and press the piezoelectric ring 404.

[0043] The lower part of the stamping table 1 is provided with a slow-release cavity 405, the inner wall of the slow-release cavity 405 is sealed and slidably connected with a driving plate 407, the driving plate 407 and the inner bottom of the slow-release cavity 405 are fixed with a slow-release spring 406, the upper end of the driving plate 407 is fixed with an ejector rod 408, the ejector rod 408 extends into the rebound groove 4 and is directly below the rebound plate 402, the upper part of the slow-release cavity 405 is filled with electrorheological fluid, the piezoelectric ring 404 is made of piezoelectric ceramics and is electrically charged after being charged. The rheological fluid supplies power. When the piezoelectric ring 404 is squeezed by the rebound plate 402, it will generate instantaneous high voltage electricity. After being output to the electrorheological fluid, the electrorheological fluid will be electrically solidified and the overall volume will expand instantly, thereby pushing the driving plate 407 downward. At the moment the collision ends, the power disappears and the electrorheological fluid will return to liquid state, causing the driving plate 407 to return to its original position under the elastic force of the release spring 406. The driving plate 407 will then push the ejector rod 408 upward.

[0044] Since the solid-liquid conversion and deformation speed of the electrorheological fluid are very fast, the driving plate 407 and the ejector rod 408 will break through the original height under the action of inertia during the upward movement, and the spring coefficient of the connecting spring 401 is very small, which makes the rebound speed of the rebound plate 402 very slow. The ejector rod 408 that breaks through the original height will collide with the rebound plate 402, so that the rebound plate 402 is pushed up by a strong force and effectively moves upward, thereby pushing the stamped material to separate from the lower mold body 2. Due to the delay in spring deformation, the external punch has already separated from the lower mold body 2, so that effective demolding can be achieved without affecting the punch safety and product quality.

[0045] The top suction placement mechanism includes a suction plate 602 that is sealed and slidably connected to the inner wall of the top suction groove 6. The suction plate 602 and the end of the top suction groove 6 are jointly fixed with a bending piece 601. The bending piece 601 is a memory alloy with a bending setting. The memory alloy is in a basic bending state before reaching the transformation temperature. After reaching the transformation temperature, it will bend further, thereby pulling the suction plate 602. The side wall of the top suction groove 6 is installed with an exhaust sleeve 603. The exhaust sleeve 603 is an elastic tube and is connected to the top suction hole 203. After one stamping is completed, when performing the secondary operation, it is necessary to place the material plate on the lower mold body 2, and then start the DC electromagnet 101 to cancel The magnetized needle 312 is magnetized after magnetization so that it can be recycled. The magnetization process is accompanied by the release of heat, which restores the device state and increases the ambient temperature to reach the transformation temperature of the memory alloy, so that the bending piece 601 pulls the suction plate 602 to move, and then extracts the gas from the top suction hole 203 through the exhaust sleeve 603, so that the plate can be better fitted and adsorbed, which is convenient for stable stamping. The heat generated by magnetization is released into the surrounding environment, so as not to affect the subsequent heat absorption of the punch. The ambient temperature can be reduced by airflow driving equipment such as fans, so as to ensure that the temperature of the punch at the moment of stamping is controlled.

[0046] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A floor drain stamping device, comprising a stamping table (1) and a lower die body (2), characterized in that: A pair of DC electromagnets (101) are installed on the side wall of the punching table (1), an outer positioning hole (201) and an inner positioning hole (202) are provided on the upper end of the lower mold body (2), a gas compression chamber (3) is provided inside the punching table (1), an outer positioning demagnetization mechanism is provided inside the gas compression chamber (3), a rebound groove (4) is provided at the bottom of the punching table (1), an inner positioning rebound mechanism is provided inside the rebound groove (4), and a side wall of the punching table (1) is provided. There is a side suction groove (5), the inside of the side suction groove (5) is provided with a side suction stabilizing mechanism, the upper part of the punching table (1) is provided with a top suction groove (6), the inside of the top suction groove (6) is provided with a top suction placement mechanism, the side wall of the lower mold body (2) is provided with a side suction hole (204), the side suction hole (204) corresponds to the position of the side suction stabilizing mechanism, the upper end of the lower mold body (2) is provided with a top suction hole (203), the top suction hole (203) corresponds to the position of the top suction placement mechanism; The external positioning demagnetization mechanism includes a demagnetization drive component and a demagnetization cooling component, the demagnetization drive component includes a piston plate (302) that is sealingly and slidingly connected to the inner wall of the gas compression chamber (3), an external positioning column (303) is fixed to the upper end of the piston plate (302), the external positioning column (303) passes through the external positioning hole (201), and a compression spring (301) is fixed to the piston plate (302) and the inner bottom of the gas compression chamber (3); A driving chamber (304) is provided at the bottom of the punching table (1), the inner wall of the driving chamber (304) is rotatably connected to a main shaft (308), a driving blade (309) is fixed to the side wall of the main shaft (308), an air intake hole (306) and an air discharge hole (307) are respectively provided through the bottom of the gas compression chamber (3) and the driving chamber (304), an air injection hole (305) connected to the driving chamber (304) is provided on the side wall of the gas compression chamber (3), and a one-way valve is provided inside the air injection hole (305) and the air intake hole (306); A refrigeration cavity (310) is provided on the upper portion of the punching table (1), the inner wall of the refrigeration cavity (310) is rotatably connected to a magnetizing rod (311), a magnetizing needle (312) is fixed to the side wall of the magnetizing rod (311), the upper end of the main shaft (308) extends through the refrigeration cavity (310), a demagnetizing rod (313) is fixed to the side wall of the main shaft (308) located inside the refrigeration cavity (310), and the interior of the refrigeration cavity (310) is filled with dimethylamine gas; The inner positioning rebound mechanism comprises a rebound plate (402) connected to the bottom of the rebound groove (4) via a connecting spring (401); an inner positioning column (403) is fixed to the upper end of the rebound plate (402); the inner positioning column (403) passes through the inner positioning hole (202); and a piezoelectric ring (404) is fixed to the inner wall of the rebound groove (4); The top suction placement mechanism comprises a suction plate (602) sealed and slidably connected to the inner wall of the top suction groove (6); the suction plate (602) and the end of the top suction groove (6) are fixed with a bending piece (601); the bending piece (601) is a memory alloy with a bent arrangement; the side wall of the top suction groove (6) is installed with an exhaust sleeve (603); the exhaust sleeve (603) is an elastic tube and is connected to the top suction hole (203).

2. A floor drain punching device according to claim 1, characterized in that: The side suction stabilizing mechanism comprises a mounting block (501) fixed inside the side suction groove (5); the side wall of the mounting block (501) is connected to a side suction plate (503) via a side suction spring (502); the side suction plate (503) is sealingly and slidingly connected to the inner wall of the side suction groove (5); a plurality of side suction holes (204) are provided and are connected to the inside of the side suction groove (5).

3. A floor drain punching device according to claim 1, characterized in that: A slow-release chamber (405) is provided at the bottom of the punching table (1), and the inner wall of the slow-release chamber (405) is sealed and slidably connected to a driving plate (407), and a slow-release spring (406) is fixed to the driving plate (407) and the inner bottom of the slow-release chamber (405). An ejection rod (408) is fixed to the upper end of the driving plate (407), and the ejection rod (408) extends into the rebound groove (4) and is directly below the rebound plate (402). The upper part of the slow-release chamber (405) is filled with an electrorheological fluid, and the piezoelectric ring (404) is made of piezoelectric ceramics and supplies power to the electrorheological fluid after generating electricity.

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