CN110094315B - Force-increasing type hydraulic energy conversion device for recovering sole energy - Google Patents

Force-increasing type hydraulic energy conversion device for recovering sole energy Download PDF

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CN110094315B
CN110094315B CN201910284638.5A CN201910284638A CN110094315B CN 110094315 B CN110094315 B CN 110094315B CN 201910284638 A CN201910284638 A CN 201910284638A CN 110094315 B CN110094315 B CN 110094315B
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energy conversion
connecting rod
hydraulic energy
hydraulic
energy
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CN110094315A (en
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施虎
汪政
何彬
梅雪松
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Xian Jiaotong University
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Xian Jiaotong University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03GSPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/08Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02Installations or systems with accumulators

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rehabilitation Tools (AREA)

Abstract

The invention discloses a boosting type hydraulic energy conversion device for recovering sole energy. The device adopts the pressure boost mode, convert mechanical energy into hydraulic oil pressure energy, energy storage density has effectively been improved, with the help of crank link mechanism with the human walking in-process foot repeated down step on the motion and convert the horizontal linear motion of piston into, and the cooperation reset spring realizes piston reciprocating motion, thereby realized the high-efficient conversion of mechanical energy and hydraulic energy, can directly regard as the hydraulic pressure source to provide power for actuating system, be fit for being applied to among the actuating mechanism that has similar working condition of being in service such as hydraulic drive's recovered auxiliary motion apparatus of human low limbs and wearable ectoskeleton robot in order to reduce the energy consumption. Meanwhile, the device has simple structure, is convenient to process, manufacture and assemble, and is easy to realize series production.

Description

Force-increasing type hydraulic energy conversion device for recovering sole energy
Technical Field
The invention belongs to the technical field of fluid pressure control mechanisms, relates to a force-increasing type hydraulic energy conversion device, and particularly relates to a force-increasing type hydraulic energy conversion device for recovering sole energy.
Background
In recent years, with rapid development of robotics and microelectronics, wearable and portable electronic devices, human body assistance exoskeletons, upper and lower limb rehabilitation robots and the like have more and more popular development trends. However, since such devices mostly rely on storage batteries to provide energy, and batteries need to be replaced periodically during use to maintain the devices, finding a reliable energy source as a power source for such devices and reducing the dependence on external batteries have become an important technical requirement for research in this field. Energy capture technology for converting motion energy generated in the walking process of a human body into controllable energy obtains more and more extensive attention of researchers in related fields.
The existing human body walking movement energy recovery equipment is developed into a wearable structure from a miniature or portable electronic equipment, and the power consumption and power supply problems brought by the equipment are improved while the quality of life of a human body is improved. From the energy conversion principle, the device mainly realizes the energy recovery of human body movement by sensing the human body movement and converting the movement amount or mechanical deformation of a built-in element into electric energy. Since the electric energy must be stored in the storage battery, the energy recovery and storage must undergo a mechanical energy-electric energy-chemical energy conversion process, and must undergo a chemical energy-electric energy-mechanical energy reverse conversion when being released and utilized. More energy conversion links directly lead to low recovery efficiency, and the obtained electric power is usually smaller.
The conversion of mechanical energy and fluid energy, particularly hydraulic energy, is more direct, the energy recovery efficiency is higher, and if the human body energy is recovered into the hydraulic energy to directly drive the equipment, the problems existing in the current human body movement energy recovery can be effectively overcome. In addition, with the development of fluid transmission technology, wearable power-assisted robots such as artificial exoskeletons are driven by fluid transmission, so that the advantage of high power density of fluid transmission is brought into full play in such applications. Therefore, the recovery of human motion energy into hydraulic energy to directly drive the actuating mechanism to realize power transmission and motion control is a problem to be solved urgently in the field of current wearable robots and mechanical equipment.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a boosting type hydraulic energy conversion device for recovering sole energy, which has reasonable design, can realize high-efficiency conversion of mechanical energy and hydraulic energy, and can be directly used as a hydraulic source to provide power for a driving system.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the invention discloses a force-increasing type hydraulic energy conversion device for recovering sole energy, which comprises a hydraulic system oil source unit and four hydraulic energy conversion mechanisms with the same structure, wherein the hydraulic system oil source unit is respectively connected with the four hydraulic energy conversion mechanisms through oil pipes and is used for providing hydraulic oil source power for the hydraulic energy conversion mechanisms;
two of the four hydraulic energy conversion mechanisms form a heel unit and a sole unit respectively, the two hydraulic energy conversion mechanisms forming the heel unit and the sole unit are connected through an inter-mechanism connecting rod, and the hydraulic energy conversion mechanism of the heel unit and the hydraulic energy conversion mechanism of the sole unit are detachably connected;
the hydraulic energy conversion mechanism comprises a pump body, a bracket connected with the pump body and a crank connecting rod mechanism; a flow channel and a piston cavity are arranged in the pump body, two end parts of the piston cavity are respectively provided with a return spring, one end of each return spring is fixed with the wall of the piston cavity, and the other end of each return spring is connected with a piston; the crank connecting rod mechanism comprises an upper end sliding block, a first connecting rod and a second connecting rod, one end of the first connecting rod and one end of the second connecting rod are hinged with the bottom of the upper end sliding block, and the other end of the first connecting rod and one end of the second connecting rod are hinged with one end of the piston; the upper end sliding block is connected with the connecting rod between the mechanisms in a matching way; the bracket is provided with a linear guide rail, and the crank connecting rod mechanism can vertically move along the linear guide rail;
the crank-connecting rod mechanism can convert the repeated stepping-down motion of the foot of a human body in the walking process into the horizontal linear motion of the piston, and the reciprocating motion of the piston is realized by matching with a return spring.
Preferably, the linear guide rail is provided with a sliding block, the upper end sliding block is fixedly connected to the sliding block, and the end part of the connecting rod between the mechanisms is connected with the sliding block.
Preferably, a plurality of length-adjustable bottom connecting rods are further arranged between the oppositely arranged hydraulic energy conversion mechanisms.
Preferably, a bottom support plate is arranged below the support and is connected with the bottom connecting rod in a matching mode.
Preferably, the bracket consists of a first bracket and a second bracket, and the first bracket and the second bracket are L-shaped and are symmetrically arranged; the vertical rod parts of the first support and the second support are connected with the pump body, and the horizontal rod part is connected with the bottom support plate.
Preferably, the hydraulic system oil source unit comprises an accumulator, a relief valve and a check valve, and the accumulator, the relief valve and the check valve are integrated on the valve block.
Preferably, oil inlets and oil outlets of two pump bodies in the heel unit are respectively connected in series through a fourth oil pipe and a third oil pipe; oil inlets and oil outlets of two pump bodies in the foot palm unit are respectively connected in series by a second oil pipe and a first oil pipe.
Further preferably, the oil port T1 of the pump body is connected to the second check valve through a fourth oil pipe, and the oil port P1 is connected to the third check valve through a third oil pipe.
Preferably, the hydraulic energy conversion mechanism of the heel unit and the hydraulic energy conversion mechanism of the sole unit are connected through a first hinge and a second hinge respectively.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a boosting type hydraulic energy conversion device for recovering sole energy, which comprises a pump body, a bracket connected with the pump body, and a flow channel and a piston cavity which are arranged in the pump body. The device adopts the pressure boost mode, convert mechanical energy into hydraulic oil pressure energy, energy storage density has effectively been improved, with the help of crank link mechanism with the human walking in-process foot repeated down step on the motion and convert the horizontal linear motion of piston into, and the cooperation reset spring realizes piston reciprocating motion, thereby realized the high-efficient conversion of mechanical energy and hydraulic energy, can directly regard as the hydraulic pressure source to provide power for actuating system, be fit for being applied to among the actuating mechanism that has similar working condition of being in service such as hydraulic drive's recovered auxiliary motion apparatus of human low limbs and wearable ectoskeleton robot in order to reduce the energy consumption. Meanwhile, the device has simple structure, is convenient to process, manufacture and assemble, and is easy to realize series production.
Furthermore, the energy conversion device adopts a high-strength aluminum alloy material and a crank connecting rod boosting structure design, and has the advantages of light weight, small volume and convenience in carrying and use. The power density of the device is improved by utilizing the capacity amplification characteristic of the boosting mechanism of the crank connecting rod.
Furthermore, four groups of same energy conversion mechanisms are mutually independent, the heel unit and the sole unit respectively adopt two groups of hydraulic energy conversion mechanisms and are connected through hinges, the condition of the actual walking process of a person is adapted, and the comfort level of a wearer is improved. And the hinge connection position can be adjusted, and the user can adjust the hinge position by oneself according to practical application occasion in order to adapt to different people's foot size.
Drawings
Fig. 1 is an isometric view of the present invention.
Fig. 2 is a top view of the present invention.
FIG. 3 is a partial view of a single energy conversion mechanism of the present invention.
Fig. 4 is a schematic diagram of the hydraulic drive system of the present invention.
The numbers in the figures represent: 1. a pump body; 2. a first piston; 3.1 a first connecting rod, 3.2 a second connecting rod; 4. an upper end slide block; 5. a second piston; 6.1 first bracket, 6.2 second bracket; 7. a linear guide rail; 8. a slider; 9. a bottom support plate; 10.1 first hinge, 10.2 second hinge; 11.1 a first oil pipe, 11.2 a second oil pipe, 11.3 a third oil pipe and 11.4 a fourth oil pipe; 12.1 a first inter-mechanism connecting rod and 12.2 a second inter-mechanism connecting rod; 13 a bottom link; 14.1 a first return spring, 14.2 a second return spring; 15 a one-way valve; 15.1 a first one-way valve, 15.2 a second one-way valve, 15.3 a third one-way valve, 15.4 a fourth one-way valve; 16. a valve block; 17. an accumulator; 18. an overflow valve.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1 and 2, the force-increasing hydraulic energy conversion device for recovering sole energy of the present invention comprises a hydraulic system oil source unit and four hydraulic energy conversion mechanisms with the same structure, wherein the hydraulic system oil source unit is respectively connected with the four hydraulic energy conversion mechanisms through oil pipes for providing hydraulic oil source power for the hydraulic energy conversion mechanisms; two of the four hydraulic energy conversion mechanisms form a heel unit and a sole unit respectively, the two hydraulic energy conversion mechanisms forming the heel unit and the sole unit are connected through a connecting rod between the mechanisms, and the hydraulic energy conversion mechanism of the heel unit is detachably connected with the hydraulic energy conversion mechanism of the sole unit.
As shown in fig. 3, each hydraulic energy conversion mechanism includes a pump body 1, a bracket connected with the pump body 1, and a crank link mechanism; a flow channel and a piston cavity are arranged in the pump body 1, two end parts of the piston cavity are respectively provided with a return spring 14, one end of each return spring 14 is fixed with the wall of the piston cavity, and the other end of each return spring is connected with a piston; the crank connecting rod mechanism comprises an upper end sliding block 4, a first connecting rod 3.1 and a second connecting rod 3.2, one end of the first connecting rod 3.1 and one end of the second connecting rod 3.2 are hinged with the bottom of the upper end sliding block 4, and the other end of the first connecting rod is hinged with one end of the piston; the upper end sliding block 4 is connected with the connecting rod between the mechanisms in a matching way; the bracket is provided with a linear guide rail 7, and the crank connecting rod mechanism can vertically move along the linear guide rail 7; the crank-connecting rod mechanism can convert the repeated stepping-down motion of the foot of a human body in the walking process into the horizontal linear motion of the piston, and the reciprocating motion of the piston is realized by matching with a return spring.
Specifically, the round holes of the first piston 2 and the second piston 5 are hinged with the round hole at the narrow end of the first connecting rod 3.1 and the round hole at the wide end of the second connecting rod 3.2 respectively; a round hole at the wide end of the first connecting rod 3.1 and a round hole at the narrow end of the second connecting rod 3.2 are hinged with a round hole of the upper end sliding block 4; the rectangular hole of the upper end slide block 4 is matched with the rectangular outer surface of the first mechanism connecting rod 12.1.
And a sliding block 8 is arranged on the linear guide rail 7, the upper end sliding block 4 is fixedly connected to the sliding block 8, and the end part of the connecting rod between the mechanisms is connected with the sliding block 8. A plurality of length-adjustable bottom connecting rods 13 are also arranged between the oppositely arranged hydraulic energy conversion mechanisms. And a bottom supporting plate 9 is arranged below the bracket, and the bottom supporting plate 9 is connected with a bottom connecting rod 13 in a matching way. The bracket consists of a first bracket 6.1 and a second bracket 6.2, and the first bracket 6.1 and the second bracket 6.2 are both L-shaped and are symmetrically arranged; the vertical rod parts of the first 6.1 and second 6.2 brackets are connected to the pump body 1 and the horizontal rod parts are connected to the bottom support plate 9.
Specifically, a round hole of a thin wall of the pump body 1 is connected with a round hole of a vertical rod of the first support 6.1 and a round hole of a vertical rod of the second support 6.2; the round holes of the horizontal rods of the first bracket 6.1 and the second bracket 6.2 are connected with the round hole of the bottom support plate 9; the circular hole of the linear guide rail 7 is matched with the circular hole at the side edge of the vertical rod of the bracket; a convex block in the middle of the sliding block 8 is matched with a groove on the side surface of the linear guide rail 7; a round hole at the end part of the connecting rod between the mechanisms is matched with a round hole of the sliding block 8; the round holes on the side edges of the bottom supporting plate 9 are matched with the outer cylindrical surface of the bottom connecting rod 13.
The hydraulic energy conversion mechanism of the heel unit and the hydraulic energy conversion mechanism of the sole unit are connected through a first hinge 10.1 and a second hinge 10.2 respectively, and the hinges can change positions according to different sizes of feet of people to adapt to specific application occasions.
As shown in fig. 2 and 4, the hydraulic system oil source unit is connected to the four hydraulic energy conversion mechanisms through oil pipes, and includes an accumulator 17, an overflow valve 18, and a check valve 15, and the accumulator 17, the overflow valve 18, and the check valve 15 are integrated on a valve block 16.
Oil inlets and oil outlets of two pump bodies 1 in the heel unit are respectively connected in series through a fourth oil pipe 11.4 and a third oil pipe 11.3, and a second one-way valve 15.2 and a third one-way valve 15.3 are arranged in the heel unit; oil inlets and oil outlets of two pump bodies 1 in the foot sole unit are respectively connected in series through a second oil pipe 11.2 and a first oil pipe 11.1, and a first check valve 11.1 and a fourth check valve 11.4 are arranged in the foot sole unit.
The oil port T1 of the pump body 1 is connected with the second check valve 15.2 through a fourth oil pipe 11.4, and the oil port P1 is connected with the third check valve 15.3 through a third oil pipe 11.3.
The working principle of the invention is as follows:
when a person wears the energy conversion device, the first inter-mechanism connecting rod 12.1 is arranged under the heel, the second inter-mechanism connecting rod 12.2 is arranged under the toe, and the length of the bottom connecting rod 13 is adjustable to adapt to the difference of the widths of the feet of the person. In the initial state, the compression amounts of the first return spring 14.1 and the second return spring 14.2 arranged in the pump body 1 are both minimum. When a human body walks, a heel downwards steps on the connecting rod 12.1 between the first mechanisms to apply a vertically downward acting force, the upper end slide block 4 vertically downwards moves due to the fact that the upper end slide block 4 is connected with the connecting rod 12.1 between the first mechanisms in a matched mode and the upper end slide block 4 is fixed on the slide block 8, the first connecting rod 3.1 connected with the upper end slide block 4, the first piston 2, the second connecting rod 3.2 and the second piston 5 form two groups of crank connecting rod force increasing systems, and therefore after the connecting rod 12.1 between the first mechanisms receives the vertically downward acting force, the first piston 2 and the second piston 5 both move towards the direction far away from the linear guide rail 7 under the action of the first connecting rod 3.1 and the second connecting rod 3.2.
When the first piston 2 moves to the right and the second piston 5 moves away from the linear guide 7, the compression of the first return spring 14.1 and the second return spring 14.2 increases. At this time, the hydraulic oil in the left chamber of the first piston 2 and the right chamber of the second piston 5 is pressurized, and a part of the pressure oil reaches the second check valve 15.2 through the third oil pipe 11.3, and the other part of the pressure oil reaches the third check valve 15.3 through the fourth oil pipe 11.4. Since the second check valve 15.2 is open and the third check valve 15.3 is closed, the oil pressed out from the left chamber of the first piston 2 flows through the port T1 to the accumulator 17 located on the valve block 16. The oil pressed out by the second piston 5 will also eventually flow to the accumulator 17. The relief valve 18 functions as a safety guard.
When the heel is stepped down, the bottom support plate 9 fixed at the lower end of the bracket is separated from the ground, and the vertical downward acting force acting on the connecting rod 12.1 between the mechanisms is cancelled, the first piston 2 and the second piston 5 move towards the direction close to the linear guide rail 7 under the action of the return springs 14.1 and 14.2, the volumes of the left cavity of the first piston 2 and the right cavity of the second piston 5 are increased to form negative pressure, oil in the oil tank enters the left cavity of the first piston 2 through the one-way valve 15.3, the upper end sliding block 4 is finally vertically moved upwards under the guidance of the linear guide rail 7 through the force and movement transmitted by the connecting rod 3.1 and the connecting rod 3.2, and finally the connecting rod between the mechanisms is restored to the initial position.
The support period of the walking gait of the human body consists of heel landing, heel off-ground, toe landing and toe off-ground. After the heel is stepped down, the energy conversion mechanisms of the heel and the toe rotate around the hinge, and the toe begins to land and enters the working period of the toe part of the boosting type hydraulic energy conversion device for recovering the energy of the sole. When a human body walks, the operating principle of the energy conversion mechanism is the same as that of the energy conversion mechanism when the heel is stepped downwards after the toe is stepped downwards on the connecting rod between the mechanisms to apply a vertical downward acting force.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.

Claims (9)

1. A force-increasing type hydraulic energy conversion device for recovering sole energy is characterized by comprising a hydraulic system oil source unit and four hydraulic energy conversion mechanisms with the same structure, wherein the hydraulic system oil source unit is respectively connected with the four hydraulic energy conversion mechanisms through oil pipes and is used for providing hydraulic oil source power for the hydraulic energy conversion mechanisms;
two of the four hydraulic energy conversion mechanisms form a heel unit and a sole unit respectively, the two hydraulic energy conversion mechanisms forming the heel unit and the sole unit are connected through an inter-mechanism connecting rod, and the hydraulic energy conversion mechanism of the heel unit and the hydraulic energy conversion mechanism of the sole unit are detachably connected;
the hydraulic energy conversion mechanism comprises a pump body (1), a bracket connected with the pump body (1) and a crank connecting rod mechanism; a flow channel and a piston cavity are arranged in the pump body (1), two end parts of the piston cavity are respectively provided with a return spring (14), one end of each return spring (14) is fixed with the wall of the piston cavity, and the other end of each return spring is connected with a piston; the crank connecting rod mechanism comprises an upper end sliding block (4), a first connecting rod (3.1) and a second connecting rod (3.2), one end of the first connecting rod (3.1) and one end of the second connecting rod (3.2) are hinged with the bottom of the upper end sliding block (4), and the other end of the first connecting rod (3.1) and one end of the second connecting rod (3.2) are hinged with one end of the piston; the upper end sliding block (4) is connected with the connecting rod between the mechanisms in a matching way; the bracket is provided with a linear guide rail (7), and the crank connecting rod mechanism can vertically move along the linear guide rail (7);
the crank-connecting rod mechanism can convert the repeated stepping-down motion of the foot of a human body in the walking process into the horizontal linear motion of the piston, and the reciprocating motion of the piston is realized by matching with a return spring.
2. The force-increasing hydraulic energy conversion device for plantar energy recovery according to claim 1, characterized in that the linear guide (7) is provided with a slide block (8), the upper end slide block (4) is fixedly connected to the slide block (8), and the end of the inter-mechanism connecting rod is connected with the slide block (8).
3. The force-increasing hydraulic energy conversion device for plantar energy recovery according to claim 1, characterized in that a plurality of length-adjustable bottom links (13) are further provided between the oppositely disposed hydraulic energy conversion mechanisms.
4. The force-increasing hydraulic energy conversion device for plantar energy recovery according to claim 3, characterized in that a bottom support plate (9) is arranged below the support, and the bottom support plate (9) is connected with a bottom connecting rod (13) in a matching manner.
5. The force-increasing hydraulic energy conversion device for plantar energy recovery according to claim 4, characterized in that the support consists of a first support (6.1) and a second support (6.2), the first support (6.1) and the second support (6.2) are both L-shaped and symmetrically arranged; the vertical rod parts of the first bracket (6.1) and the second bracket (6.2) are connected with the pump body (1), and the horizontal rod part is connected with the bottom support plate (9).
6. The force-increasing hydraulic energy conversion device for plantar energy recovery according to claim 1, characterized in that the hydraulic system oil source unit includes an accumulator (17), a relief valve (18), and a check valve (15), and the accumulator (17), the relief valve (18), and the check valve (15) are integrated on a valve block (16).
7. The force-increasing hydraulic energy conversion device for plantar energy recovery according to claim 1, characterized in that the oil inlets and the oil outlets of two pump bodies (1) in the heel unit are respectively connected in series by a fourth oil pipe (11.4) and a third oil pipe (11.3); oil inlets and oil outlets of two pump bodies (1) in the sole unit are respectively connected in series by a second oil pipe (11.2) and a first oil pipe (11.1).
8. The force-increasing hydraulic energy conversion device for plantar energy recovery according to claim 7, characterized in that the port T1 of the pump body (1) is connected with the second check valve (15.2) through a fourth oil pipe (11.4), and the port P1 is connected with the third check valve (15.3) through a third oil pipe (11.3).
9. The force-increasing hydraulic energy conversion device for plantar energy recovery according to claim 1, characterized in that the hydraulic energy conversion mechanism of the heel unit and the hydraulic energy conversion mechanism of the ball unit are connected by a first hinge (10.1) and a second hinge (10.2), respectively.
CN201910284638.5A 2019-04-10 2019-04-10 Force-increasing type hydraulic energy conversion device for recovering sole energy Active CN110094315B (en)

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CN107257158A (en) * 2017-07-17 2017-10-17 曹卓然 It is a kind of to store electric discharge device and the footwear for storing electric discharge
CN109098940A (en) * 2018-08-15 2018-12-28 武汉大学 Mechanical energy-saving type highway deceleration strip generating set

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US8907505B2 (en) * 2011-08-03 2014-12-09 Energy Harvesters Llc Method and apparatus for generating electrical energy
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2722671Y (en) * 2004-09-01 2005-09-07 胡宗甫 Electricity generating shoes
WO2010016068A2 (en) * 2008-08-07 2010-02-11 Parikumar Periasamy An electricity generator
CN102182651A (en) * 2011-04-28 2011-09-14 同济大学 Novel power generation method based on pressure
WO2014136080A1 (en) * 2013-03-08 2014-09-12 Ologn Technologies Ag Systems, methods and apparatuses for harvesting power generated in a footwear
CN204409757U (en) * 2015-01-20 2015-06-24 浙江海洋学院 New type auto heating shoes
CN107165792A (en) * 2017-05-27 2017-09-15 渭南敬贤堂科技有限责任公司 Vehicle weight vibration energy regeneration system
CN107257158A (en) * 2017-07-17 2017-10-17 曹卓然 It is a kind of to store electric discharge device and the footwear for storing electric discharge
CN109098940A (en) * 2018-08-15 2018-12-28 武汉大学 Mechanical energy-saving type highway deceleration strip generating set

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