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30results about How to "Regulating force" patented technology

Steady frame of a machining cutting machine tool

The invention discloses a center frame of a machining and cutting machine tool, comprising a mounting seat (8), a center frame body (9) is arranged on the mounting seat (8), and three adjustment cylinders are arranged on the center frame body (9) (10), the adjustment cylinder (10) runs through the center frame body (9), and the top wheel is installed at one end of the three adjustment cylinders (10) located in the center frame body (9). In the present invention, a top wheel is installed on the adjustment cylinder of the center frame body, which converts the friction force between the workpiece and the center frame body into rolling friction force, which reduces the situation that the workpiece is locked. At the same time, driven by the turntable, it can Adjust the force between the top wheel and the workpiece so that the workpiece is evenly stressed.
Owner:CHENGDU KESHENG PETROLEUM TECH +1

Mechanism for operating small circuit breaker

A manipulating mechanism for miniature breaker is characterized by that its jumper and contact arm are two-step boosting lever. Regulating their lever ratios can conveniently regulate the moving speed between contacts and the action force between jumper and lock for optimal match. A slotted cam mechansm is used to control the movement tracings of jumper and moving arm with low friction force.
Owner:ZHEJIANG CHINT ELECTRIC CO LTD

Metal melting protective agent and preparation method and application thereof

The invention discloses a metal melting protective agent and a preparation method and application thereof, and relates to a metal melting process. The metal melting protective agent comprises the following components in percentage by mass: 5-60% of sodium carbonate, 10-70% of potassium carbonate, 5-60% of lithium carbonate, 10-20% of accessories, and 100% of total amount. The accessories can be selected from at least one of boric acid, calcium chloride and calcium fluoride. All the components are heated to a temperature of 300-800 DEG C after uniform mixing to obtain a melting mixture; and the melting mixture is cooled, crushed and dried to obtain the metal melting protective agent. The metal melting protective agent can be applied to the production of melting pure lead or lead alloys and the melting process of other metals, besides of lead, with a melting point range of 200-800 DEG C or alloys thereof. The lead and the lead alloy can be effectively saved; the production cost is reduced; the economic benefit is increased; the environmental pollution in the production process of lead acid accumulators can be reduced; and the lead pollution is reduced.
Owner:MINHUA POWER SOURCE CO LTD FUJIAN

Automatic labeling machine for toothbrush handles

The invention discloses an automatic labeling machine for toothbrush handles. The automatic labeling machine comprises a conveying device, a station rotary disc and a discharging port sequentially, wherein a gluing device is arranged on one side of the conveying device; at least a feeding station, a labeling station, a code printing station and a discharging station are arranged on the periphery of the station rotary disc sequentially; toothbrushes on the conveying device are transferred to the feeding station through a gripping device A; toothbrushes on the discharging station are transferred to the discharging port through a gripping device B; a plurality of toothbrush head fixing devices are uniformly distributed on the station rotary disc which is rotationally connected onto a base; the gluing device, the feeding station, the labeling station, the code printing station and the discharging station are arranged on the base respectively; the discharging port is formed in one side of the base. With adoption of the structure, automatic production of the toothbrushes can be realized during labeling and code printing procedures, the labor intensity of an operator is reduced, and the production efficiency is increased.
Owner:HUAIAN HUABANG PRECISION MACHINERY CO LTD

Mechanism for operating small circuit breaker

A manipulating mechanism for miniature breaker is characterized by that its jumper and contact arm are two-step boosting lever. Regulating their lever ratios can conveniently regulate the moving speed between contacts and the action force between jumper and lock for optimal match. A slotted cam mechansm is used to control the movement tracings of jumper and moving arm with low friction force.
Owner:ZHEJIANG CHINT ELECTRIC CO LTD

Fuel gas proportional valve

The invention relates to a fuel gas proportional valve comprising a valve body, a valve assembly, a valve cover, a first driving piece, a magnetic conductive piece and an electromagnetic coil assemblyarranged around the magnetic conductive piece. The valve assembly is mounted inside the valve body, and the valve cover is mounted outside the valve body. The electromagnetic coil assembly is mountedin the valve cover, the magnetic conductive piece is connected with the valve assembly, and the first driving piece is used for driving the electromagnetic coil assembly to move away from or close tothe valve body. The first driving piece drives the electromagnetic coil assembly to move away from or close to the valve body, thus the first driving piece can adjust the strength of a magnetic fieldgenerated by the electromagnetic coil assembly, then the acting force of the magnetic conductive piece on the valve assembly is adjusted, and a gap between the valve assembly and the valve body is changed, so that the fuel gas proportional valve gets the appropriate P2H value, fluctuation of the P2H value is avoided, and the comfort of using of users is improved.
Owner:GUANGDONG WANHE THERMAL ENERGY TECH CO LTD

Metal melting protective agent with chloride as body and preparing method of metal melting protective agent

The invention discloses a metal melting protective agent with chloride as a body and a preparing method of the metal melting protective agent and relates to metal melting protective agents. The metal melting protective agent comprises, by mass percentage, 30%-70% of sodium chloride, 20%-60% of potassium chloride, 1%-20% of lithium chloride and x% of accessory, and the total mass is 100%. The preparing method includes the steps that all the components are evenly mixed according to the proportion, and a mixture is obtained; the mixture is put into a container to be heated, and a molten mixture is obtained after melting; and the molten mixture is cooled and then smashed and dried, and the metal melting protective agent with chloride as the body is obtained. The protective agent exists in the manner of low-density ion liquid in a high-temperature state, the density of the protective agent is far lower than that of molten metal, and continuous batch charging in the production process is facilitated. The metal melting protective agent can be used for melting technologies of other metal, except lead, or alloy, with the melting point in the range of 200-800 DEG C, metal raw materials can be effectively saved, production cost is reduced, economic benefits are increased, and pollution can also be reduced.
Owner:MINHUA POWER SOURCE CO LTD FUJIAN

Suspension apparatus and exoskeleton robot adopting suspension apparatus

The invention discloses a suspension apparatus and exoskeleton robot adopting the suspension apparatus. The suspension apparatus comprises a suspension frame, a suspension mechanism and an assisting mechanism, wherein the suspension mechanism is arranged on the suspension frame, and a suspended piece is arranged on the suspension mechanism; the suspension mechanism is arranged on the suspension frame; the assisting mechanism is connected to the suspension mechanism; and under the assistance of assisting power outputted by the assisting mechanism, the suspended piece is lifted by the suspensionmechanism.
Owner:BEIJING AI ROBOTICS TECH CO LTD

Cable routing device for stable tension

ActiveCN105671761BAdjust and maintain proper tensionGuaranteed tensionAuxillary apparatusCircular discStructural engineering
The invention discloses a routing device capable of stabilizing tension force. Fixed bases are symmetrically arranged at the lower parts of the end surfaces of the two sides of a vertical disk; a threading rod A is fixed on the end surface of one side of the vertical disk along the end surface; a threading rod B is rotationally connected to the end surface of one side of the vertical disk along the end surface; one end of the threading rod A and one end of the threading rod B extend to the same side; the threading rod A is positioned above the fixed bases; the other end of the threading rod B is rotationally connected with the vertical disk through a rotary shaft; a cavity is formed in the vertical disk; the rotary shaft is connected with the inner wall of the cavity of the vertical disk through a flat spiral spring; and the threading rod A and the threading rod B are provided with a plurality of threading rings A in sequence. According to the structure of the routing device, the threading rod B is driven to rotate against the threading rod A through the flat spiral spring, so that lines passing through the threading rod A and the threading rod B can keep certain tension forces; and according to different tension forces of the passing lines, an angle of the threading rod B can be adjusted under the action of the flat spiral spring to adjust a routing distance, so that the proper tension forces of the lines are adjusted and kept.
Owner:TEMPLE IN LIANSHUI YUN BROCADE WEAVING

Novel high-efficiency reel uncoiling machine and uncoiling method thereof

PendingCN110422660AReduce the unqualified rate of standingLow costArticle unpackingWebs handlingLoss rateEngineering
The invention provides a novel high-efficiency reel uncoiling machine and an uncoiling method thereof, and relates to the technical field of reel uncoiling. According to the novel high-efficiency reeluncoiling machine and the uncoiling method thereof, first bases are arranged, the number of the first bases is two, first mounting columns are arranged on the upper surfaces of the two first bases, amounting plate is fixedly connected to the positions, close to the top ends, of the outer side walls of the two first mounting columns, a fixing block is fixedly arranged on the back surface of the left side of the mounting plate, an adjusting mechanism is arranged on the position, close to the fixing block, of the back surface of the mounting plate, and a first rotating shaft is connected into the fixing block in a rotating mode. The novel high-efficiency reel uncoiling machine and the uncoiling method thereof have the advantages that reels are reasonably uncoiled, so that the loss rate of products is greatly decreased, and therefore the reject ratio of the standing degree of pins caused by uncoiling is decreased, in addition, the uncoiling efficiency is greatly improved, the cost of processing materials is lowered, meanwhile, the attrition rate of whole equipment is extremely low, and the service life is long.
Owner:NANTONG HUADA MICROELECTRONICS GROUP

Wafer cleaning device

The invention relates to a wafer cleaning device. The wafer cleaning device comprises a brush head assembly and a driving assembly. The brush head assembly comprises a first brush head and a second brush head, and the second brush head is arranged around the first brush head with the first brush head as the center. The driving assembly is connected with the first brush head and used for controlling rotation and lifting of the first brush head; the driving assembly is further connected with the second brush head and used for controlling rotation of the second brush head. According to the wafercleaning device, the wafer can be cleaned, and the first brush head can be prevented from scratching the wafer.
Owner:CHANGXIN MEMORY TECH INC

Method for adjusting gravity center of workpiece in large range

The invention discloses a method for adjusting the gravity center of a workpiece in a large range. An installation base (8) is included. A center rest body (9) is arranged on the installation base (8). Three clamping grooves (12) are evenly formed in the center rest body (9). A fixing bolt (13) is arranged on the sidewall of each clamping groove (12). An adjusting barrel (10) is installed in each clamping groove (12). Top wheels are installed at the ends, located on the inner side of the center rest body (9), of the three adjusting barrels (10). According to the method, frictional force of the workpiece and the center rest body is converted into rolling frictional force, and the condition that the workpiece is locked is reduced. Meanwhile, acting force between the top wheels and the workpiece can be adjusted through driving of rotating plates, so that the workpiece is stressed evenly. The relative position relation between the adjusting barrels and the center rest body can be changed through the fixing bolts on the clamping grooves, so that the application range of center rests of the same model is enlarged.
Owner:邱晓霞

Pipe end face burr removing device based on product quality engineering

The pipe end face burr removing device based on the product quality engineering comprises a base, a machining frame is fixedly connected to the upper side of the base, a frame door is rotationally connected to the front side of the machining frame, and a driving motor is installed on the lower side of the interior of the base; the output end of the driving motor penetrates through the base to be fixed to the lower clamping base, the two sides of the machining frame are fixed to the dust collection structure through side buckles, the upper clamping base and the lower clamping base are arranged in the machining frame, the upper clamping base is driven by a hydraulic rod to move downwards, and the dust collection structure is fixed to the lower clamping base. And the upper clamping seat and the lower clamping seat are both designed to be in a circular truncated cone shape, and the polishing requirements of pipes with different pipe diameters can be met through the structure.
Owner:GUANGDONG UNIV OF TECH

Rehabilitation training device for internal medicine department

The invention provides a rehabilitation training device for internal medicine department. The rehabilitation training device comprises a base, a riding module, a leg training module and a hand training module. The riding module comprises a connecting sliding block arranged at the top of the right end of the base, a connecting sliding groove matched with the connecting sliding block, a first positioning bolt arranged on the connecting sliding groove and used for fixing the connecting sliding block, a connecting cylinder arranged at the top of the connecting sliding groove, a second positioningbolt arranged on the connecting cylinder and used for fixing the connecting column, a seat arranged at the top of the connecting column, a safety belt arranged on the seat, armrests are arranged on the seat, a first anti-dirt sleeve arranged on a horizontal supporting part of the seat, and a second anti-dirt sleeve arranged on a backrest part of the seat. By means of the rehabilitation training device for the internal medicine department, a user can adjust the training device in a personalized mode according to the body difference, and the exercise intensity of the training device can be adjusted according to the demand difference.
Owner:河南护理职业学院

Bodybuilding bicycle

ActiveCN112755460AIncrease or decrease rotational resistancePrecise adjustment of forceMovement coordination devicesCardiovascular exercising devicesVehicle frameEngineering
The invention relates to a bodybuilding bicycle. A bicycle head is installed at a front end of a bicycle frame, a seat is installed on the rear portion of the bicycle frame, the bicycle frame comprises a bottom rod, a front supporting rod, a rear supporting rod, a front fork, a seat supporting rod and an inclined supporting pipe, a damping flywheel is installed on the front fork, a damping adjusting device is further installed on the bicycle frame, and the damping adjusting device comprises a damping belt installed on the edge of the damping flywheel; the damping belt comprises a supporting belt and a blocking edge, and a plurality of damping magnetic blocks evenly arranged along the circumference of the damping flywheel are installed on the side, away from the damping flywheel, of the supporting belt; the damping adjusting device further comprises an electromagnet which is fixed to the frame and corresponds to the damping magnetic block, a magnetic field generated when the electromagnet is powered on interacts with a magnetic field of the damping magnetic block so that rotating resistance of the damping flywheel can be increased or reduced, and rotating resistance of the damping flywheel can be accurately adjusted by controlling the powered-on current of the electromagnet.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

A kind of metal melting protective agent with chloride as the main body and preparation method thereof

The invention discloses a metal melting protective agent with chloride as a body and a preparing method of the metal melting protective agent and relates to metal melting protective agents. The metal melting protective agent comprises, by mass percentage, 30%-70% of sodium chloride, 20%-60% of potassium chloride, 1%-20% of lithium chloride and x% of accessory, and the total mass is 100%. The preparing method includes the steps that all the components are evenly mixed according to the proportion, and a mixture is obtained; the mixture is put into a container to be heated, and a molten mixture is obtained after melting; and the molten mixture is cooled and then smashed and dried, and the metal melting protective agent with chloride as the body is obtained. The protective agent exists in the manner of low-density ion liquid in a high-temperature state, the density of the protective agent is far lower than that of molten metal, and continuous batch charging in the production process is facilitated. The metal melting protective agent can be used for melting technologies of other metal, except lead, or alloy, with the melting point in the range of 200-800 DEG C, metal raw materials can be effectively saved, production cost is reduced, economic benefits are increased, and pollution can also be reduced.
Owner:MINHUA POWER SOURCE CO LTD FUJIAN

Rotor winding and unwinding device

The invention relates to a rotor winding and unwinding device. The rotor winding and unwinding device comprises a base, a wire wheel mounting frame and a hole plate, the wire wheel mounting frame is mounted on the base, an enameled wire wheel is arranged on the wire wheel mounting frame and rotationally connected with the wire wheel mounting frame, a torsion adjusting device is arranged on the wire wheel mounting frame, the torsion adjusting device is clamped on a rotating shaft of the enameled wire wheel so as to adjust the magnitude of torsion applied to the enameled wire wheel in the rotating process, the hole plate is vertically installed on the base, a plurality of driven wheels and pressing devices are arranged on the hole plate, and enameled wires on the enameled wire wheel wind around all the driven wheels and then penetrate through the pressing device to be led out. The device is simple in structure, the acting force during unwinding is easy to adjust, and the using effect is good.
Owner:福建铨一电源科技有限公司

A high-throughput device and method for obtaining micro-tissue blocks

The invention provides a high-throughput device and method for obtaining micro-tissue blocks, and relates to the technical field of slice sampling. It includes a sample table, sampling needles distributed in an array, a flexible assembly that drives the sampling needles to advance or retract, and a three-dimensional translation platform; the flexible assembly includes a cylinder and a positioning part, and the positioning part is used to limit the rotation of the piston rod of the cylinder. The sampling needles are distributed in an array, and high-throughput sampling can be completed in a single pass; the flexible component drives the sampling needles to move forward flexibly for sampling, which can well adjust the force between the sampling needles and the tissue; the positioning part is in the sampling process. During the process, it is ensured that the sampling needle does not rotate with the cylinder piston rod, so as to avoid the relative position deflection between the sampling needle array and the sample, which can not only ensure the success of repeated sampling of similar samples, but also achieve the purpose of protecting the sampling needle.
Owner:HUAZHONG UNIV OF SCI & TECH

Ballastless track slab laying method

The invention discloses a ballastless track plate laying method. The method comprises a step (a) of performing center line lofting on a base passing the acceptance; a step (b) of laying an isolating layer and steel bar meshes on the base; a step (c) of laying ballastless track plates corresponding to a center line of the base; a step (d) of accurately adjusting the ballastless track plates according to the design requirements; a step (e) of establishing dies on two sides of the ballastless track plate; a step (f) of pouring concrete between the ballastless track plates and the base; and a step (g) of removing the dies and detecting laying quality of the ballastless track plates. According to the ballastless track plate laying method, not only is laying quality improved in the ballastless track plate laying process, but also service life of a whole ballastless track is prolonged, the railway quality requirements of high-speed train running are met, track plate laying work can be finished according to a set construction period, and construction of the whole railway engineering can be finished smoothly according to the regulated quality requirements and the construction period requirements.
Owner:CHINA RAILWAY NO 2 ENG GRP CO LTD +1

Device and method for obtaining micro tissue blocks at high throughput

ActiveCN110926849ARegulating forceGuaranteed Repeat SamplingWithdrawing sample devicesHigh fluxEngineering
The invention provides a device and a method for obtaining micro tissue blocks at high throughput, and relates to the technical field of slice sampling. The device comprises a sample table, sampling needles distributed in an array, a flexible assembly for driving the sampling needles to advance or retract, and a three-dimensional translation table. The flexible assembly comprises an air cylinder and a positioning part used for limiting rotation of a piston rod of the air cylinder. The sampling needles are distributed in an array manner, and high-flux sampling can be completed at a time. The flexible assembly drives the sampling needle to flexibly advance for sampling, so that the acting force between the sampling needle and the tissue can be well adjusted. The positioning part ensures thatthe sampling needle does not rotate along with the piston rod of the air cylinder in the whole sampling process, so that the relative position between the sampling needle array and the sample is prevented from deflecting, the success of repeated sampling of similar samples can be ensured, and the purpose of protecting the sampling needle can be achieved.
Owner:HUAZHONG UNIV OF SCI & TECH

Carbon fiber cloth production process and improved filament collecting device thereof

The invention discloses a carbon fiber cloth production process and an improved filament collecting device thereof, and the carbon fiber cloth production process is characterized by comprising the following steps: S1, material selection: selecting carbon fiber precursor fibers, and S2, proportioning: preparing a catalyst solution, and putting chloride, bromide and ammonium dihydrogen phosphate into a soaking mechanism according to a ratio of 1: 1.5: 2. According to the carbon fiber cloth production process and the improved filament collecting device thereof, through cooperative use of a stirring motor and a stirring paddle, people can control rotation of an output shaft of the stirring motor, so that the stirring paddle can stir water in a soaking box, thereby, accelerating mixing of the water and the catalyst solution. Through cooperative use of a grid blocking frame and a baffle plate, a water flow can be blocked by the grid blocking frame and the baffle plate when water in the soaking box rotates along with the stirring paddle, such that the water flow does not rotate along a fixed direction, and thus, the water turning degree is improved. Further, the catalyst and water can be mixed together more fully, so that the mixing uniformity is improved.
Owner:张家港伟诺复合材料有限公司

Auxiliary adjustment mechanism for the opening and closing strength of the upper-turn door of the furniture

An auxiliary adjusting mechanism for the opening and closing force of a tilt-up door of furniture comprises a fixing element, a connecting arm assembly and a fixing base. The fixing base is opened and closed on the fixing element by turning the connecting arm assembly. The fixing element is provided with a first spring and a second spring. One end of the first spring and one end of the second spring are connected with the fixing element, and the other end of the first spring and the other end of the second spring are connected with the connecting arm assembly. The fixing element is further provided with an adjusting assembly for adjusting the magnitude of the acting force of the second spring. The adjusting assembly at least comprises a fixing fame, a manipulation element, a pushing element, an intermediate element and an adjusting screw. By adjusting an adjusting acting part of the adjusting screw with a tool or manual operation, the adjusting screw rotates in a positioned mode relative to the fixing frame and drives the manipulation element, the intermediate element and the pushing element to be mutually linked on the fixing frame, and therefore the second spring is released or compressed and the magnitude of the acting force of the second spring is adjusted. Due to the structural improvement, the auxiliary adjusting mechanism is high in practicality.
Owner:伍志勇

Pantograph device for bullet train electrical system

The invention provides a pantograph device for a bullet train electrical system, and relates to the technical field of bullet train electrical systems. The pantograph device for the bullet train electrical system comprises a base, a wire holder is fixedly mounted at the bottom end of the base, triangular plates are fixedly mounted at the top end of the left side of the wire holder, a rotating cylinder is rotationally connected between the triangular plates, a first rotating rod is fixedly mounted on the periphery of the rotating cylinder, a rotating plate is rotationally connected with the other end of the first rotating rod, and a supporting rod is fixedly mounted at the top end of the rotating plate. According to the pantograph device for the bullet train electrical system, when a bullet train fluctuates, it can be guaranteed that a touch panel moves up and down more effectively, effective contact between the touch panel and a power grid can be guaranteed, the phenomenon of poor contact is avoided, the acting force between the touch panel and the power grid can be adjusted more conveniently and rapidly, control is convenient, and the rationality of acting force between the touch panel and the power grid is ensured.
Owner:HUNAN UNIV OF TECH

Exhaust device for cardiac surgery

InactiveCN114287977AReduce the possibility of slippingConvenient forceSurgerySplint deviceEngineering
The invention relates to the technical field of surgical devices, and discloses an exhaust device for cardiac surgery, which solves the problems that the length of a fixing band is inconvenient to adjust according to actual requirements and certain limitation exists, and comprises a main body, a pipeline base, an exhaust tube, a needle head and a fixing band, and the pipeline base is connected with the main body through the exhaust tube; the needle head is arranged at the bottom of the pipeline base, a fixing seat is arranged on one side of the pipeline base, the fixing seat and the pipeline base are connected through two connecting plates, a first rectangular hole is formed in one side of the fixing seat, one end of the fixing belt is fixedly connected with one side of the pipeline base, and the other end of the fixing belt penetrates through the first rectangular hole. A second rectangular hole is formed in the inner wall of the top of the first rectangular hole, a clamping plate is arranged in the second rectangular hole, an adjusting plate is arranged above the clamping plate, and the clamping plate and the adjusting plate are connected through an elastic unit; the length of the fixing belt can be adjusted, and the fixing belt pressing force of the clamping plate can be adjusted conveniently.
Owner:THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF TCM

A kind of metal melting protection agent and its preparation method and application

The invention discloses a metal melting protective agent and a preparation method and application thereof, and relates to a metal melting process. The metal melting protective agent comprises the following components in percentage by mass: 5-60% of sodium carbonate, 10-70% of potassium carbonate, 5-60% of lithium carbonate, 10-20% of accessories, and 100% of total amount. The accessories can be selected from at least one of boric acid, calcium chloride and calcium fluoride. All the components are heated to a temperature of 300-800 DEG C after uniform mixing to obtain a melting mixture; and the melting mixture is cooled, crushed and dried to obtain the metal melting protective agent. The metal melting protective agent can be applied to the production of melting pure lead or lead alloys and the melting process of other metals, besides of lead, with a melting point range of 200-800 DEG C or alloys thereof. The lead and the lead alloy can be effectively saved; the production cost is reduced; the economic benefit is increased; the environmental pollution in the production process of lead acid accumulators can be reduced; and the lead pollution is reduced.
Owner:MINHUA POWER SOURCE CO LTD FUJIAN

Thoracic surgery postoperative rehabilitation assisting device

The invention discloses a thoracic surgery postoperative rehabilitation assisting device. The problem that the conventional medical bed without an exercise device is unfavorable for postoperative rehabilitation of a patient is solved. The thoracic surgery postoperative rehabilitation assisting device comprises a mounting rack, two supporting rods and a supporting plate, wherein the mounting rack is composed of four vertical rods; the supporting plate is horizontally fixed among the four vertical rods; the supporting rods are fixed between two vertical rods on the same side; the thoracic surgery postoperative rehabilitation assisting device is characterized in that a sliding sleeve is connected onto the supporting rods in a sliding manner; a locking piece is arranged at one end of the sliding sleeve; a pull ring is connected onto the sliding sleeve by virtue of a connecting rope; a horizontal bed and an inclined bed are supported on the supporting plate; and a first compression spring and a second compression spring are arranged between the inclined bed and the supporting plate. The device disclosed by the invention is reasonable in design, convenient to use and capable of promotingfunctional rehabilitation of the body.
Owner:连媛
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