CN113827425A

CN113827425A - Improved magnetic therapy bed

Info

Publication number: CN113827425A
Application number: CN202010581041.XA
Authority: CN
Inventors: 方彦雯; 方志财
Original assignee: Heye Health Technology Co Ltd
Current assignee: Heye Health Technology Co Ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-12-24
Anticipated expiration: 2040-06-23
Also published as: CN113827425B

Abstract

The invention relates to the technical field of magnetic therapy auxiliary devices, in particular to an improved magnetic therapy bed; the horizontal adjusting mechanism comprises a first sliding block, a first lead screw, a fixed block and a rotating shaft, a first gear is arranged at the right end of the rotating shaft, a second gear is arranged at the right end of the first lead screw, the direction adjusting mechanism comprises an adjusting box, a second lead screw, a second sliding block and a fixed shaft, an adjusting cavity is arranged inside the adjusting box, a fixed rod is connected between the left side wall and the right side wall in the upper part of the adjusting box, and the right end of the second lead screw is connected with a hand wheel; the magnetic concentration device is arranged in the magnetic therapy apparatus and comprises a circular groove plate, a permanent magnet, a moving sleeve and a conical block, wherein the circular groove plate is arranged at the bottom of the arched moving plate, and the opening direction of the circular groove plate faces downwards; it conveniently adjusts the magnetic therapy apparatus position, reduces the number of times that the patient frequently changed the posture, improves and uses the comfort.

Description

Improved magnetic therapy bed

Technical Field

The invention relates to the technical field of physiotherapy devices, in particular to an improved magnetic therapy bed.

Background

As is well known, the magnetic therapy is a method for treating certain diseases by applying an artificial magnetic field to meridians, acupuncture points and pathological changes of a human body, professional magnetic therapy equipment in hospitals has effects on hypertension, arthritis, headache, insomnia, coronary heart disease, gastroenteritis, facial spasm, sprain, contusion, cervical spondylosis and the like, 5.11.2011 and 11.3, the national food and drug administration published "magnetic therapy product registration technical review guidance principle" proposes that the magnetic field can adjust a biological magnetic field in vivo, generate induction micro-current, change the permeability of cell membranes, change the activity of certain enzymes, expand blood vessels and accelerate blood flow so as to achieve auxiliary treatment effects such as pain relieving and swelling diminishing, the existing magnetic therapy bed is a common fixed steel bed in a ward, a patient only conveniently lies down in the magnetic therapy process, the magnet is placed on a bedside cabinet beside, and the patient needs to change postures frequently to adapt to the magnetic therapy instrument, so that the comfort of use is greatly compromised.

Disclosure of Invention

In order to solve the technical problem, the invention provides the improved magnetic therapy bed which is convenient for adjusting the position of the magnetic therapy apparatus, reduces the times of frequently changing postures of patients and improves the use comfort.

The invention relates to an improved magnetic therapy bed, which comprises a lying plate, a cross beam, a transverse adjusting mechanism, a longitudinal adjusting mechanism, a front-back adjusting mechanism and a direction adjusting mechanism, wherein the lying plate is fixedly connected with the cross beam;

the transverse adjusting mechanism comprises a first sliding block, two groups of first lead screws, four groups of fixed blocks and a rotating shaft, wherein a first through groove is formed in the first sliding block in a transverse communication mode, the right end of the cross beam penetrates through the first through groove and extends out of the right side of the first sliding block, the four groups of fixed blocks are respectively installed on the left side and the right side of the front side and the left side and the right side of the rear side of the cross beam, second through grooves are formed in the two groups of fixed blocks on the right side in a transverse communication mode, first gears are arranged at the right end of the rotating shaft, second gears are arranged at the right ends of the two groups of first lead screws, and the two groups of second gears are meshed with the first gears;

the direction adjusting mechanism comprises an adjusting box, a second lead screw, a second slide block and a fixed shaft, an adjusting cavity is arranged inside the adjusting box, a fixed rod is connected between the left side wall and the right side wall inside the upper part of the adjusting box, a third through groove is transversely communicated and arranged on the second slide block, the right end of the fixed rod passes through the third through groove and extends out to the right side of the second slide block, a fourth through groove is transversely communicated and arranged on the right side wall inside the adjusting box, a third bearing seat is arranged on the left side wall inside the adjusting box, a third ball bearing is rotatably fixed inside the third bearing seat, the left end of the second lead screw is in interference fit with the third ball bearing, the right end of the second lead screw passes through the left side of the second slide block and extends out to the right side of the second slide block, the right end of the second lead screw passes through the fourth through groove and extends out of the adjusting box, the right end of the second lead screw is connected with a hand wheel, a rack is fixed at the bottom end of the second slide block, a third gear is fixedly sleeved outside the fixed shaft, the third gear is meshed with the rack, a fifth through groove is formed in the front side wall and the back side wall of the adjusting box in a front-back direction communication mode, a fourth bearing seat is arranged on the back side wall of the adjusting box, a fourth ball bearing is rotatably fixed in the fourth bearing seat, the rear end of the fixed shaft is in interference fit with the fourth ball bearing, and the front end of the fixed shaft penetrates through the fifth through groove and extends out of the adjusting box;

the magnetic therapeutic apparatus is arranged in front of the fixed shaft or above the lying plate, the magnetic concentration apparatus is arranged in the magnetic therapeutic apparatus and comprises a circular groove plate, a permanent magnet, a movable sleeve and a conical block, the circular groove plate is arranged at the bottom of the arched movable plate, the opening direction of the circular groove plate faces downwards, the permanent magnet is arranged in the middle of the top end of the inner wall of the circular groove plate, the top of the movable sleeve is inserted into a gap between the outer wall of the permanent magnet and the inner wall of the circular groove plate, the outer wall of the movable sleeve is in contact with the inner wall of the circular groove plate, the inner wall of the movable sleeve is separated from the outer wall of the permanent magnet, the bottom of the movable sleeve is positioned below the circular groove plate, the left lower side and the right lower side of the movable sleeve are respectively connected with the lower sides of the two groups of adjusting devices, and the conical block is arranged at the bottom of the movable sleeve;

the permanent magnet is prepared by adopting a flexible bonded neodymium iron boron magnet, and the preparation method of the flexible bonded neodymium iron boron magnet comprises the following steps:

1) mixing a rubidium chloride aqueous solution with the concentration of 0.3-1.5M and a ferrous sulfate aqueous solution with the concentration of 0.5-1.5M to obtain a mixed solution A; then adjusting the pH value of the mixed solution A to 1.5-2.5;

2) slowly adding a sodium borohydride aqueous solution with the concentration of 3-4M into the mixed solution A with the pH adjusted at the temperature of 5-15 ℃ in a nitrogen atmosphere, washing with water to obtain a black precipitate, and sintering the black precipitate at the temperature of 500-750 ℃ to obtain rapidly quenched neodymium-iron-boron magnetic powder;

3) carrying out surface treatment on nano alumina powder by using a titanate coupling agent, and then uniformly mixing the rapidly quenched neodymium-iron-boron magnetic powder, the ferrocene magnetic powder and the bisphenol A epoxy resin in the step 2) with the nano alumina powder subjected to surface treatment by using a large-scale mixer to obtain mixed magnetic powder;

4) and (3) molding the mixed magnetic powder obtained in the step 3) in a composite environment of a temperature field with a constant temperature of 20-200 ℃ and an orientation field with a magnetic field intensity of 0.5-3T to obtain the flexible bonded neodymium iron boron magnet.

The circular groove plate, the movable sleeve and the conical block can be made of magnetic materials; the permanent magnet is located between circular frid, removal cover and the toper piece, and circular frid, removal cover and toper piece are gathered together the magnetic field that the permanent magnet produced, and the magnetic field passes through the most advanced position of bottom of toper piece and transmits downwards to carry out magnetotherapy to the human body and handle, have the magnetotherapy mechanism body of gathering the magnetism function through the setting, can conveniently gather together magnetic field, improve practicality and reliability.

The flexible bonded neodymium iron boron magnet has the advantages of high cost performance, convenient magnet forming, high processing precision, good toughness and small magnetic deviation. However, the existing flexible bonded neodymium iron boron magnet has the defects of low Curie temperature, poor temperature characteristic and easy pulverization and corrosion, and the flexible bonded neodymium iron boron magnet with high magnetic performance and diversified magnetizing modes can be achieved only by adjusting the chemical components and adopting a surface treatment method to improve the flexible bonded neodymium iron boron magnet.

The method for preparing the rapidly quenched rubidium-iron-boron magnetic powder is different from the traditional preparation method, the rapidly quenched rubidium-iron-boron magnetic powder is prepared by a solution method, and the method comprises the steps of firstly using a rubidium chloride aqueous solution and a ferrous sulfate aqueous solution, respectively reducing rubidium chloride and ferrous sulfate into metal states of rubidium and iron by using sodium borohydride as reducibility under the pH and temperature of the method, and sintering at the temperature of 500-750 ℃ to obtain the rapidly quenched rubidium-iron-boron magnetic powder. According to the invention, the reaction conditions of high vacuum and high temperature are avoided, the production safety is realized, the average particle size of the obtained rapidly quenched rubidium-iron-boron magnetic powder is small, and the rapidly quenched rubidium-iron-boron magnetic powder can be directly used for preparing the flexible bonded neodymium-iron-boron magnet without carrying out mesh treatment. The preparation method of the rapidly quenched rubidium-iron-boron magnetic powder is simple, easy to prepare, safe and rapid.

In the preparation process of the rapidly quenched rubidium-iron-boron magnetic powder, if the pH value of the mixed solution A is too high, iron ions in ferrous sulfate can react with hydroxyl ions to obtain ferric hydroxide, impurities in the obtained rapidly quenched neodymium-iron-boron magnetic powder are increased, if the pH value of the mixed solution A is too low, sodium borohydride can react with hydrogen ions, and the ferrous sulfate aqueous solution and the rubidium chloride aqueous solution cannot be completely reduced by the sodium borohydride. Therefore, the invention not only ensures that the average particle size of the obtained rapidly quenched rubidium-iron-boron magnetic powder is small, but also ensures that the purity of the obtained rapidly quenched rubidium-iron-boron magnetic powder is high by adjusting the pH value of the mixed solution A and the volumes of the rubidium chloride aqueous solution, the ferrous sulfate aqueous solution and the sodium borohydride aqueous solution, and can be further directly used for preparing the flexible bonded neodymium-iron-boron magnet with high magnetic performance and diversified magnetizing modes.

Meanwhile, the coupling agent, the ferrocene magnetic powder and the nano-alumina are introduced, so that the element collocation in the obtained flexible bonded neodymium iron boron magnet is optimized, and the magnetic performance of the flexible bonded neodymium iron boron magnet is obviously improved. The nano alumina powder subjected to surface treatment by the titanate coupling agent is added, so that the dispersion is excellent, the nano alumina powder is dispersed in a grain boundary phase of the neodymium iron boron magnet and exists in a tetragonal crystal structure, and the magnetic property of the flexible bonded neodymium iron boron magnet is obviously improved. In addition, the nano particles have the function of enhancing and toughening, so that the mechanical strength of the bonded neodymium iron boron magnet can be improved, and the purpose of reducing the fracture of the magnet in the subsequent process and transportation process is achieved.

Preferably, the volume of the rubidium chloride aqueous solution in the step 1): the volume of the ferrous sulfate aqueous solution is 1: 4-1: 6; volume of the rubidium chloride aqueous solution in step 1): the volume of the sodium borohydride aqueous solution is 1: 5-1: 9; 80-90 parts of rapidly quenched neodymium iron boron magnetic powder, 0.2-5 parts of ferrocene magnetic powder, 0.5-5 parts of titanate coupling agent, 5-8 parts of bisphenol A epoxy resin and 0.5-2 parts of nano alumina powder.

According to the invention, the ferrocene magnetic powder is introduced, so that the structural state of the magnetic field between the obtained flexible bonded neodymium iron boron magnets is changed, the magnetic performance of the magnets is greatly improved, and the corrosion resistance of the magnets is improved.

Preferably, the surface treatment of the nano alumina powder by using the titanate coupling agent in the step 3) comprises drying the nano alumina powder at 60-90 ℃, then putting the dried nano alumina powder into an ethanol solution, stirring to obtain a suspension of the nano alumina powder, then adding the titanate coupling agent, stirring and drying; the particle size of the nano alumina powder is 40-60 mu m.

Preferably, in the step 3), firstly, mixing the nano alumina powder subjected to surface treatment by the titanate coupling agent with the rapidly quenched neodymium-iron-boron magnetic powder to obtain a mixture B, then, dispersing the mixture B by using a high-power ultrasonic generator, and then, uniformly mixing the dispersed mixture B, the ferrocene magnetic powder and the bisphenol A epoxy resin by using a large-scale mixer to obtain the mixed magnetic powder.

Preferably, four groups of fixed blocks are arranged in the transverse adjusting mechanism, and two groups of screw rods are arranged in the transverse adjusting mechanism; the right sides of the two groups of fixed blocks positioned on the left side are respectively provided with a first bearing seat, first ball bearings are rotatably fixed in the two groups of first bearing seats, the left ends of the two groups of first lead screws are respectively in interference fit with the two groups of first ball bearings, the right ends of the two groups of first lead screws are screwed out from the left side of the first sliding block to the right side of the first sliding block, the right ends of the two groups of first lead screws respectively penetrate through the two groups of second through grooves and respectively extend out to the right sides of the two groups of fixed blocks positioned on the right side, the right side of the crossbeam is provided with a second bearing seat, second ball bearings are rotatably fixed in the second bearing seat, and the left end of the rotating shaft is in interference fit with the second ball bearings; a handle is rotatably fixed on the right side of the first gear.

Preferably, the improved magnetic therapy bed further comprises an extension plate and two groups of folding plates, wherein the front side of the bottom end of the lying plate is connected with an auxiliary plate, the extension plate is connected with the front side of the lying plate in a shaft mode, the outer ends of the two groups of folding plates are respectively connected with the front sides of the extension plate and the lower side of the front side of the auxiliary plate in a shaft mode, the inner ends of the two groups of folding plates are mutually connected in a shaft mode, and the two groups of folding plates are respectively connected with a limiting piece in a shaft mode and an L-shaped limiting frame in a fixed mode.

Preferably, the front-back adjusting mechanism comprises two groups of limit knobs, two groups of sliding plates and two groups of supporting rods, the top ends of the two groups of supporting rods are respectively connected with the left side and the right side of the bottom end of the cross beam, the two groups of sliding plates are respectively installed on the inner sides of the bottom ends of the two groups of supporting rods, first sliding grooves are formed in the front portion and the rear portion of the left side and the right side of the lying plate respectively, second sliding grooves are formed in the front portion and the rear portion of the left side and the right side of the extending plate respectively, the two groups of first sliding grooves are respectively communicated with the two groups of second sliding grooves, and the two groups of limit knobs are respectively screwed into the two groups of first sliding grooves.

Preferably, the longitudinal adjusting mechanism comprises a first electric telescopic rod and a supporting spring set, and the first electric telescopic rod and the supporting spring set are both connected with the first sliding block and the adjusting box.

Preferably, still include the bottom plate, two sets of supports and two sets of second electric telescopic handle, the top of two sets of supports is hub connection respectively at service creeper bottom left front side and left rear side, the bottom of two sets of supports all is connected with the bottom plate top, two sets of second electric telescopic handle's top is hub connection respectively at service creeper bottom right front side and right rear side, bottom plate top right front side and right rear side transversely all are provided with the slide rail, and all slidable be fixed with the gleitbretter in two sets of slide rail departments, two sets of second electric telescopic handle's bottom is installed respectively on two sets of gleitbretter tops.

Preferably, the bottom plate bottom is connected with the universal wheelset of auto-lock, still includes third lead screw group, and the bottom of third lead screw group is worn out to the bottom plate below from bottom plate top spiral shell, and third lead screw group top bottom both ends are connected with respectively and revolve the ear group and aggravate the piece group.

Preferably, first logical groove, two sets of second lead to groove, the third leads to groove, the fourth leads to groove and the fifth leads to inslot lateral wall all can rotate and be fixed with ball group, and six ball groups respectively with crossbeam, two sets of first lead screw, dead lever, second lead screw and fixed axle paste tight contact.

The improved magnetic therapy bed comprises an oil cylinder, a push rod and a push plate, wherein the oil cylinder is arranged on an arched moving plate, the push rod is arranged on the oil cylinder, the left side of the push plate is arranged on a moving sleeve, and the right side of the push plate is arranged at the bottom of the push rod. Thereby adjust the area of contact between distance and the removal cover outer wall and the circular slot board inner wall between toper piece and the permanent magnet, conveniently adjust the magnetic field intensity that the permanent magnet transmitted to on the toper piece, improve practicality and reliability.

The improved magnetic therapy bed also comprises a laser range finder and a central control box, wherein the laser range finder is arranged at the top of the push plate on the adjusting device, the top position of the laser range finder corresponds to the left front position of the bottom of the resin layer on the front circular groove plate, the laser range finder is in signal connection with the central control box, and the central control box is in signal connection with the motor.

Through setting up the resin layer, can conveniently block the magnetic field on the circular frid, prevent that the magnetic field from producing through the circular frid and leaking, reduce energy loss, improve the practicality. Open laser range finder, laser range finder can measure the distance between laser range finder top and the resin layer bottom, thereby measure the distance between toper piece and the circular frid, laser range finder transmits the detected value to well accuse incasement, after the detected value reaches fixed requirement, well accuse case control adjusting device out of service, thereby it is spacing to the position that reciprocates of toper piece and removal cover, prevent that removal cover and circular frid from taking place to break away from or collide, well accuse case can carry out the independent control to adjusting device all around simultaneously, thereby conveniently carry out independent adjustment to magnetic field intensity, conveniently carry out many styles to the human body and handle, through carrying out signal connection with well accuse case and motor, can conveniently carry out unified control, simplify magnetotherapy equipment operation mode, improve practicality and reliability.

Preferably, the left side and the right side of the top end of the lying plate are both connected with baffles.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the coupling agent, the ferrocene magnetic powder and the nano aluminum oxide are introduced, so that the element collocation in the obtained flexible bonded neodymium iron boron magnet is optimized, the magnetic performance of the flexible bonded neodymium iron boron magnet is obviously improved, and a magnetic therapy machine body consisting of permanent magnets with high magnetic performance and diversified magnetizing modes is obtained;

2. the lying plate is placed on a normal steel plate bed, the position of the magnetic therapy apparatus is conveniently adjusted in each direction through the transverse adjusting mechanism, the longitudinal adjusting mechanism, the front-back adjusting mechanism and the direction adjusting mechanism, the times of frequently changing postures of patients are reduced, the use comfort is improved, and in the using process of the transverse adjusting mechanism, the manual rotation handle drives the first gear to rotate, the design that the two groups of second gears are meshed with the first gear assists in driving the two groups of first screw rods to synchronously move in the same direction, the first sliding block can stably and transversely move under the restriction of the cross beam, the four groups of fixed blocks improve the supporting effect of the two groups of first screw rods, the first ball bearings and the second ball bearings respectively assist the first screw rods and the rotating shaft to rotate more smoothly and simultaneously improve the stabilizing effect, the design that the handle can rotate automatically assists manual rotation to save more labor, and the magnetic therapy apparatus can conveniently and transversely move; meanwhile, in the use process of the direction adjusting mechanism, the hand wheel is manually rotated to drive the second lead screw to rotate, so that the second sliding block stably moves transversely under the restriction of the fixed rod to drive the rack to move transversely; the third gear and the rack are meshed, so that the rack moves transversely and simultaneously rotates, the magnetic therapy instrument on the fixed shaft is driven to rotate, the adjusting box improves the supporting effect of the second screw rod and the fixed shaft, the third ball bearing and the fourth ball bearing respectively assist the second screw rod and the fixed shaft to rotate more smoothly and simultaneously improve the stabilizing effect, and the magnetic therapy instrument can conveniently rotate;

3. by arranging the magnetic therapy mechanism body with the magnetic gathering function, the magnetic field can be gathered conveniently, and the practicability and the reliability are improved;

4. by arranging the resin layer, the magnetic field on the circular groove plate can be conveniently blocked, the magnetic field is prevented from leaking through the circular groove plate, the energy loss is reduced, and the practicability is improved;

5. laser range finder can measure the distance between laser range finder top and the resin layer bottom, thereby measure the distance between toper piece and the circular frid, laser range finder transmits the detected value to well accuse incasement, after the detected value reaches fixed requirement, well accuse case control adjusting device stop motion, thereby it is spacing to the position that reciprocates of toper piece and removal cover, prevent that removal cover and circular frid from taking place to break away from or colliding, well accuse case can carry out the independent control to adjusting device simultaneously, thereby conveniently carry out the independent adjustment to magnetic field intensity, conveniently carry out the polytype magnetotherapy to the human body and handle, practicality and reliability are improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side view of the connection of the stretcher, folding, accessory and creeper panels;

FIG. 3 is a left side view of the fixed shaft, third gear and adjustment box connection;

FIG. 4 is an enlarged partial view of portion A of FIG. 1;

FIG. 5 is an enlarged view of part B of FIG. 1;

FIG. 6 is an enlarged partial view of portion C of FIG. 1;

FIG. 7 is an enlarged partial view of portion D of FIG. 2;

FIG. 8 is a schematic view of the structure of the main body and the adjusting device of the magnetic therapy apparatus of the present invention;

in the drawings, the reference numbers: 1. a lying board; 2. a cross beam; 3. a first slider; 4. a first lead screw; 5. a fixed block; 6. a rotating shaft; 7. a first gear; 8. a second gear; 9. a handle; 10. an adjustment box; 11. a second lead screw; 12. a second slider; 13. a fixed shaft; 14. fixing the rod; 15. a hand wheel; 16. a rack; 17. a third gear; 18. a stretching plate; 19. folding the board; 20. an auxiliary plate; 21. a limiting sheet; 22. an L-shaped limiting frame; 23. a limit knob; 24. a slide plate; 25. a strut; 26. a first chute; 27. a second chute; 28. a first electric telescopic rod; 29. a support spring set; 30. a base plate; 31. a support; 32. a second electric telescopic rod; 33. a slide rail; 34. sliding blades; 35. a self-locking universal wheel set; 36. a third lead screw group; 37. a lug rotating group; 38. weighting plate group; 39. a baffle plate;

170. an arcuate moving plate; 122. a circular groove plate; 123. a permanent magnet; 124. moving the sleeve; 126. an oil cylinder; 127. a push rod; 128. pushing the plate; 129. a resin layer; 130. a laser range finder; 131. and a central control box.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Example 1:

a preparation method of a flexible bonded neodymium iron boron magnet comprises the following steps:

1) mixing 2L of 0.3M (M, i.e. mol/L, the same applies below) rubidium chloride aqueous solution and 4L of 0.5M ferrous sulfate aqueous solution to obtain a mixed solution A; then adjusting the pH value of the mixed solution A to 1.5;

2) slowly adding 10L of 3M sodium borohydride aqueous solution into the mixed solution A with the regulated pH value at the temperature of 5 ℃ in the nitrogen atmosphere, washing with water to obtain black precipitate, and sintering the black precipitate at 500 ℃ to obtain the rapidly quenched neodymium-iron-boron magnetic powder with the average particle size of 75 meshes;

3) drying 2 parts of nano-alumina powder at 60 ℃, then putting the dried nano-alumina powder into an ethanol solution, stirring to obtain a suspension of the nano-alumina powder, then adding 1 part of titanate coupling agent, stirring and drying; the particle size of the nano alumina powder is 40 mu m, and then 84 parts of rapidly quenched neodymium iron boron magnetic powder, 5 parts of ferrocene magnetic powder, 8 parts of bisphenol A epoxy resin and the nano alumina powder subjected to surface treatment by titanate coupling agent in the step 2) are uniformly mixed by a large-scale mixer to obtain mixed magnetic powder;

4) and (3) molding the mixed magnetic powder obtained in the step 3) in a composite environment of a temperature field with a constant temperature of 20 ℃ and an orientation field with a magnetic field intensity of 0.5T to obtain the flexible bonded neodymium iron boron magnet.

Example 2:

1) mixing 2L of 1.5M rubidium chloride aqueous solution and 12L of 1.5M ferrous sulfate aqueous solution to obtain a mixed solution A; then adjusting the pH value of the mixed solution A to 2.5;

2) slowly adding 18L of sodium borohydride aqueous solution with the concentration of 4M into the mixed solution A with the regulated pH value in the nitrogen atmosphere at the temperature of 15 ℃, washing with water to obtain black precipitate, and sintering the black precipitate at 750 ℃ to obtain the rapidly quenched neodymium iron boron magnetic powder with the average particle size of 250 meshes;

3) drying 2 parts of nano-alumina powder at 90 ℃, then putting the dried nano-alumina powder into an ethanol solution, stirring to obtain a suspension of the nano-alumina powder, then adding 5 parts of titanate coupling agent, stirring and drying; the particle size of the nano alumina powder is 60 microns, and then 87 parts of rapidly quenched neodymium iron boron magnetic powder, 1 part of ferrocene magnetic powder, 5 parts of bisphenol A epoxy resin and the nano alumina powder subjected to surface treatment by titanate coupling agent in the step 2) are uniformly mixed by using a large-scale mixer to obtain mixed magnetic powder;

4) and (3) molding the mixed magnetic powder obtained in the step 3) in a composite environment of a temperature field with a constant temperature of 200 ℃ and an orientation field with a magnetic field intensity of 3T to obtain the flexible bonded neodymium iron boron magnet.

Example 3:

1) mixing 2L of 1.5M rubidium chloride aqueous solution and 10L of 1.5M ferrous sulfate aqueous solution to obtain a mixed solution A; then adjusting the pH value of the mixed solution A to 2.0;

2) slowly adding 14L of 3M sodium borohydride aqueous solution into the mixed solution A with the adjusted pH value at the temperature of 10 ℃ in a nitrogen atmosphere, washing with water to obtain black precipitate, and sintering the black precipitate at 650 ℃ to obtain the rapidly quenched neodymium-iron-boron magnetic powder with the average particle size of 120 meshes;

3) drying 2 parts of nano-alumina powder at 80 ℃, then putting the dried nano-alumina powder into an ethanol solution, stirring to obtain a suspension of the nano-alumina powder, then adding 5 parts of titanate coupling agent, stirring and drying; the particle size of the nano alumina powder is 50 microns, and then 85 parts of the rapidly quenched neodymium-iron-boron magnetic powder, 2 parts of ferrocene magnetic powder, 6 parts of bisphenol A epoxy resin and the nano alumina powder subjected to surface treatment by the titanate coupling agent in the step 2) are uniformly mixed by using a large-scale mixer to obtain mixed magnetic powder;

4) and (3) molding the mixed magnetic powder obtained in the step 3) in a composite environment of a temperature field with a constant temperature of 100 ℃ and an orientation field with a magnetic field intensity of 2T to obtain the flexible bonded neodymium iron boron magnet.

Comparative example 1:

1) drying 2 parts of nano-alumina powder at 80 ℃, then putting the dried nano-alumina powder into an ethanol solution, stirring to obtain a suspension of the nano-alumina powder, then adding 5 parts of titanate coupling agent, stirring and drying; the particle size of the nano alumina powder is 50 mu m, and then 85 parts of rapidly quenched neodymium iron boron magnetic powder (magnetic industry Co., Ltd., Nichikogaku, Zhejiang province), 2 parts of ferrocene magnetic powder, 6 parts of bisphenol A epoxy resin and the nano alumina powder subjected to surface treatment by titanate coupling agent are uniformly mixed to obtain mixed magnetic powder;

2) and (3) molding the mixed magnetic powder obtained in the step 2) in a composite environment of a temperature field with a constant temperature of 100 ℃ and an orientation field with a magnetic field intensity of 2T to obtain the high-temperature-resistant flexible bonded neodymium iron boron magnet.

Comparative example 2:

3) then uniformly mixing 85 parts of the rapidly quenched neodymium iron boron magnetic powder in the step 2), 2 parts of ferrocene magnetic powder and 6 parts of bisphenol A epoxy resin by using a large-scale mixer to obtain mixed magnetic powder;

Table 1: results of magnetic Property measurement

Comparative analysis of examples:

from the comparative data it can be seen that:

1. the flexible bonded neodymium iron boron magnet prepared by the solution method is not used in the comparative example 1; the magnetic properties of the flexible bonded ndfeb magnet prepared in comparative example 1 were significantly reduced, and the magnetic and mechanical properties were inferior to those of examples 1 to 3.

2. In comparative example 2, no coupling agent and nano alumina were introduced, and the flexible bonded ndfeb magnet was obtained by a conventional preparation method. The magnetic properties of the flexible bonded ndfeb magnet prepared in comparative example 2 were significantly reduced, and the magnetic and mechanical properties were inferior to those of examples 1 to 3.

As shown in figures 1 to 8, the improved magnetic therapy bed comprises a lying plate 1, a cross beam 2, a transverse adjusting mechanism, a longitudinal adjusting mechanism, a front-back adjusting mechanism and a direction adjusting mechanism, wherein the transverse adjusting mechanism comprises a first slide block 3, two groups of first lead screws 4, four groups of fixed blocks 5 and a rotating shaft 6, the first slide block 3 is transversely communicated with and provided with a first through groove, the right end of the cross beam 2 passes through the first through groove and extends to the right side of the first slide block 3, the four groups of fixed blocks 5 are respectively arranged on the left side and the right side of the front side and the left side and the right side of the rear side of the cross beam 2, the two groups of fixed blocks 5 on the right side are transversely communicated with and provided with a second through groove, the right sides of the two groups of fixed blocks 5 on the left side are respectively provided with a first bearing seat, first ball bearings can be rotatably fixed in the two groups of first bearing seats, the left ends of the two groups of first lead screws 4 are respectively in interference fit with the two groups of first ball bearings, the right ends of two groups of first lead screws 4 respectively penetrate through the left side of a first sliding block 3 to the right side of the first sliding block 3, the right ends of the two groups of first lead screws 4 respectively penetrate through two groups of second through grooves and respectively extend out to the right sides of two groups of fixed blocks 5 positioned on the right side, the right side of a crossbeam 2 is provided with a second bearing seat, a second ball bearing is rotatably fixed in the second bearing seat, the left end of a rotating shaft 6 is in interference fit with the second ball bearing, the right end of the rotating shaft 6 is provided with a first gear 7, the right ends of the two groups of first lead screws 4 are respectively provided with a second gear 8, the two groups of second gears 8 are respectively meshed with the first gear 7, the right side of the first gear 7 is rotatably fixed with a handle 9, a direction adjusting mechanism comprises an adjusting box 10, a second lead screw 11, a second sliding block 12 and a fixed shaft 13, an adjusting cavity is arranged in the adjusting box 10, and a fixed rod 14 is connected between the left side wall and the right side wall above the adjusting box 10, a third through groove is transversely communicated with the second slider 12, the right end of a fixed rod 14 passes through the third through groove and extends to the right side of the second slider 12, a fourth through groove is transversely communicated with the right side wall in the adjusting box 10, a third bearing seat is arranged on the left side wall in the adjusting box 10, a third ball bearing is rotatably fixed in the third bearing seat, the left end of a second lead screw 11 is in interference fit with the third ball bearing, the right end of the second lead screw 11 is screwed out from the left side of the second slider 12 to the right side of the second slider 12, the right end of the second lead screw 11 passes through the fourth through groove and extends out of the adjusting box 10, a hand wheel 15 is connected with the right end of the second lead screw 11, a rack 16 is fixed at the bottom end of the second slider 12, a third gear 17 is fixedly sleeved on the outer side of the fixed shaft 13, the third gear 17 is meshed with the rack 16, a fifth through groove is communicated with the front and back side wall in the adjusting box 10, a fourth shaft is arranged on the rear side wall in the adjusting box 10, and a fourth ball bearing is rotatably fixed in the fourth bearing seat, the rear end of the fixed shaft 13 is in interference fit with the fourth ball bearing, and the front end of the fixed shaft 13 passes through the fifth through groove and extends out of the adjusting box 10.

Preferably, the improved magnetic therapy bed of the invention also comprises an extension plate 18 and two groups of folding plates 19, the front side of the bottom end of the lying plate 1 is connected with an auxiliary plate 20, the extension plate 18 is connected with the front side of the lying plate 1 in a shaft way, the outer ends of the two groups of folding plates 19 are respectively connected with the front side of the extension plate 18 and the lower side of the front side of the auxiliary plate 20 in a shaft way, the inner ends of the two groups of folding plates 19 are mutually connected in a shaft way, the two groups of folding plates 19 are respectively connected with a limiting sheet 21 and a fixedly connected L-shaped limiting frame 22 in a shaft way, a front-back adjusting mechanism comprises two groups of limiting knobs 23, two groups of sliding plates 24 and two groups of supporting rods 25, the top ends of the two groups of supporting rods 25 are respectively connected with the left side and the right side of the bottom end of the cross beam 2, the two groups of sliding plates 24 are respectively arranged on the inner sides of the bottom ends of the two groups of supporting rods 25, the left side and the lying plate 1 are respectively provided with first sliding grooves 26 in the front-back direction, the left side and right side of the extension plate 18 are respectively provided with second sliding grooves 27 in the front-back direction, the two groups of the first sliding grooves 26 are respectively communicated with the two groups of second sliding grooves 27, two sets of limit knobs 23 are respectively screwed into two sets of first chutes 26, the longitudinal adjusting mechanism comprises a first electric telescopic rod 28 and a supporting spring set 29, and the first electric telescopic rod 28 and the supporting spring set 29 are both connected with the first sliding block 3 and the adjusting box 10.

Preferably, the improved magnetic therapy bed of the invention further comprises a bottom plate 30, two sets of brackets 31 and two sets of second electric telescopic rods 32, the top ends of the two sets of brackets 31 are respectively and axially connected with the left front side and the left rear side of the bottom end of the lying plate 1, the bottom ends of the two sets of brackets 31 are both connected with the top end of the bottom plate 30, the top ends of the two sets of second electric telescopic rods 32 are respectively and axially connected with the right front side and the right rear side of the bottom end of the lying plate 1, slide rails 33 are transversely arranged on the right front side and the right rear side of the top end of the bottom plate 30, slide pieces 34 are slidably fixed at the positions of the two sets of slide rails 33, the bottom ends of the two sets of second electric telescopic rods 32 are respectively installed at the top ends of the two sets of slide pieces 34, the bottom end of the bottom plate 30 is connected with a self-locking universal wheel set 35, the improved magnetic therapy bed further comprises a third screw rod set 36, the bottom ends of the third screw rod set 36 are screwed out from the top end of the bottom plate 30 to the bottom plate 30, the top end and the bottom end of the third screw rod set 36 are respectively connected with a rotary lug set 37 and a weighted piece set 38, first logical groove, two sets of second lead to groove, third lead to groove, fourth lead to groove and the equal rotatable ball group that is fixed with of fifth lead to inslot lateral wall, six ball groups respectively with crossbeam 2, two sets of first lead screw 4, dead lever 14, second lead screw 11 and fixed axle 13 paste the close contact, the 1 top left and right sides of service creeper all is connected with baffle 39.

The magnetic field generated by the permanent magnet is gathered by the circular groove plate, the movable sleeve and the conical block and is downwards transmitted to a human body on the lying plate through the top end position of the bottom of the conical block, so that the magnetic therapy treatment is carried out on the human body;

the working mode of the adjusting device is that the oil cylinder is opened, the oil cylinder can push the push rod and the push plate to move up and down, the push plate can drive the movable sleeve to move up and down, the upper side of the movable sleeve slides up and down in the circular groove plate, and the movable sleeve drives the conical block to move up and down, so that the distance between the conical block and the permanent magnet and the contact area between the outer wall of the movable sleeve and the inner wall of the circular groove plate are adjusted, and the magnetic field intensity transmitted by the permanent magnet to the conical block is conveniently adjusted; by arranging the resin layer, the magnetic field on the circular groove plate can be conveniently blocked, the magnetic field is prevented from leaking through the circular groove plate, the energy loss is reduced, and the practicability is improved;

open laser range finder, laser range finder can measure the distance between laser range finder top and the resin layer bottom, thereby measure the distance between toper piece and the circular frid, laser range finder transmits the detected value to well accuse incasement, after the detected value reaches fixed requirement, well accuse case control adjusting device bring to rest, thereby it is spacing to the position that reciprocates of toper piece and removal cover, prevent to remove the cover and take place to break away from or collide with circular frid, well accuse case can carry out the independent control to different adjusting device simultaneously, thereby conveniently carry out the independent adjustment to two sets of magnetic field intensity, the convenience is handled the many styles magnetotherapy to the human body.

The improved magnetic therapy bed can install an external magnetic therapy apparatus at the front end of a fixed shaft 13 or above a lying plate 1 when in work, the lying plate 1 is placed on a normal steel plate bed, the position of the magnetic therapy apparatus can be conveniently adjusted in each direction through a transverse adjusting mechanism, a longitudinal adjusting mechanism, a front-back adjusting mechanism and a direction adjusting mechanism, the frequency of frequently changing postures of a patient is reduced, the use comfort is improved, in the using process of the transverse adjusting mechanism, a manual rotating handle 9 drives a first gear 7 to rotate, two groups of second gears 8 are meshed with the first gear 7 to assist in driving two groups of first lead screws 4 to synchronously move in the same direction, so that a first sliding block 3 can stably transversely move under the restriction of a cross beam 2, the supporting effect of the two groups of first lead screws 4 is improved through four groups of fixed blocks 5, the first ball bearings and the second ball bearings respectively assist the first lead screws 4 and a rotating shaft 6 to rotate more smoothly and simultaneously improve the stabilizing effect, the design that the handle 9 can rotate automatically assists manual rotation to save more labor, the magnetic therapeutic apparatus can conveniently move transversely, meanwhile, in the using process of the direction adjusting mechanism, the hand wheel 15 is manually rotated to drive the second lead screw 11 to rotate, so that the second sliding block 12 can stably move transversely under the restriction of the fixed rod 14 to drive the rack 16 to move transversely, the design that the third gear 17 is meshed with the rack 16 enables the rack 16 to rotate transversely while the gear rotates, the magnetic therapeutic apparatus on the fixed shaft 13 is driven to rotate, the adjusting box 10 improves the supporting effect of the second lead screw 11 and the fixed shaft 13, the third ball bearing and the fourth ball bearing respectively assist the second lead screw 11 and the fixed shaft 13 to rotate more smoothly and simultaneously improve the stabilizing effect, and the magnetic therapeutic apparatus can conveniently rotate; the area of the lying plate 13 can be supplemented conveniently through the extending plate 18, when the extending plate 18 needs to be used, the extending plate 18 is unfolded forwards, at the moment, the outer ends of the two groups of folding plates 19 are respectively attached and contacted with the front side of the extending plate 18 and the lower side of the front side of the auxiliary plate 20, the inner ends of the two groups of folding plates 19 are mutually attached and contacted, at the moment, the limiting piece 21 is rotated to enable the limiting piece 21 to be arranged between the L-shaped limiting frame 22 and the corresponding folding plate 19, the limiting piece 18 is convenient to limit when being supported, the supporting piece is stably supported, when the extending plate 18 does not need to be used, the limiting piece 21 is rotated to enable the limiting piece 21 not to be arranged between the L-shaped limiting frame 22 and the corresponding folding plate 19, the extending plate 18 rotates downwards and pushes up the mutual shaft connecting parts of the inner ends of the two groups of folding plates 19, the outer ends of the two groups of folding plates 19 are respectively not contacted with the front side of the extending plate 18 and the lower side of the auxiliary plate 20, and the inner ends of the two groups of folding plates 19 are not contacted, the extension plate 18 is folded downwards, so that the use space is saved; when the front-back adjusting mechanism is used, the magnet therapy apparatus can conveniently move forwards and backwards by manually dragging the cross beam 2 to be matched with the two groups of first sliding grooves 26 and the two groups of second sliding grooves 27, when the extension plate 18 is not needed to be used, the two groups of limiting knobs 23 are respectively screwed into the two groups of first sliding grooves 26, so that the sliding plate 24 is convenient not to slide out of the first sliding grooves 26, and when the extension plate 18 is normally used, the two groups of limiting knobs 23 are not screwed into the two groups of first sliding grooves 26, so that the sliding plate 24 can conveniently slide into the second sliding grooves 27; when the longitudinal adjusting mechanism is used, the longitudinal adjusting mechanism can drive the direction adjusting mechanism to longitudinally move through the first electric telescopic rod 28, the supporting spring group 29 is convenient to adjust and improves the supporting effect, the first electric telescopic rod 28 is a common electric device in the market, a stable power-off self-locking mechanism and a height accurate adjusting mechanism are provided when the electric telescopic rod is bought back, the electric telescopic rod can be used only by being electrically connected according to a bought back use instruction, and the connecting wires can be reasonably wired only by working, so that the description is omitted; the lying plate 1 can be inclined to the left side by synchronously and longitudinally moving the two groups of second electric telescopic rods 32 upwards to the highest position, so that the patient can be conveniently assisted to turn over under the action of gravity, when the patient does not need to turn over, the two groups of second electric telescopic rods 32 synchronously and longitudinally move downwards to the lowest position, so that the two groups of second electric telescopic rods 32 and the two groups of supports 31 have the same length, the lying plate 1 is in a horizontal state and is convenient to use, the second electric telescopic rods 32 are common electric appliances in the market, and have stable power-off self-locking mechanisms and accurate height adjusting mechanisms when bought back, and can be used only by being electrically connected according to a service instruction bought back together when bought back for use, and connecting wires can be reasonably wired as long as the connecting wires can work, so that the laying is not repeated; the position of the lying plate 1 can be conveniently adjusted in a sliding manner when the lying plate is placed on a normal steel plate bed through the self-locking universal wheel set 35, when the self-locking of the self-locking universal wheel set 35 needs to be fixed, the rotary lug set 37 is manually rotated, the third lead screw set 36 drives the weighting sheet set 38 to be screwed down to be in contact with the normal steel plate bed, and the stabilizing effect is improved; the six groups of ball groups can assist the first sliding block 3 and the second sliding block 12 to slide more smoothly, and assist the two groups of first screw rods 4, second screw rods 11 and fixed shafts 13 to rotate more smoothly; the lying patient can be transversely limited by the baffle 39 to be prevented from rolling off from the left side and the right side of the lying plate 1.

The improved magnetic therapy bed has the advantages that the installation mode, the connection mode or the arrangement mode of all the components are welding, riveting or other common mechanical modes, the slidable/rotatable fixing mode is that the components do not fall off in the sliding/rotating state, the sealing communication mode is that the two connecting pieces are communicated and simultaneously sealed, the specific structures, models and coefficient indexes of all the components are self-contained technologies, and the improved magnetic therapy bed can be implemented as long as the beneficial effects are achieved.

In the improved magnetic therapy bed of the invention, in the condition that the description is not made on the contrary, "upper, lower, left and right, front, back, inner and outer, vertical and horizontal" and other orientation words included in the term only represent the orientation of the term in the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the numerical terms "first," "second," and "third," etc. do not denote any particular quantity or order, but rather are used to distinguish one from another, furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. An improved magnetic therapy bed is characterized by comprising a lying plate (1), a cross beam (2), a transverse adjusting mechanism, a longitudinal adjusting mechanism, a front-back adjusting mechanism and a direction adjusting mechanism;

the transverse adjusting mechanism comprises a first sliding block (3), a first lead screw (4), fixing blocks (5) and a rotating shaft (6), wherein a first through groove is formed in the first sliding block (3) in a transverse communication mode, the right end of the cross beam (2) penetrates through the first through groove and extends out of the right side of the first sliding block (3), the fixing blocks (5) are installed on the left side and the right side of the front side and the left side and the right side of the rear side of the cross beam (2), two groups of fixing blocks (5) on the right side are transversely provided with second through grooves in a communication mode, a first gear (7) is arranged at the right end of the rotating shaft (6), a second gear (8) is arranged at the right end of the first lead screw (4), and the second gear (8) is meshed with the first gear (7);

the direction adjusting mechanism comprises an adjusting box (10), a second lead screw (11), a second sliding block (12) and a fixed shaft (13), an adjusting cavity is arranged inside the adjusting box (10), a fixed rod (14) is connected between the left side wall and the right side wall inside the upper part of the adjusting box (10), a third through groove is transversely communicated with the second sliding block (12), the right end of the fixed rod (14) penetrates through the third through groove and extends to the right side of the second sliding block (12), a fourth through groove is transversely communicated with the right side wall inside the adjusting box (10), a third bearing seat is arranged on the left side wall inside the adjusting box (10), a third ball bearing is rotatably fixed inside the third bearing seat, the left end of the second lead screw (11) is in interference fit with the third ball bearing, the right end of the second lead screw (11) penetrates through the left side of the second sliding block (12) to the right side of the second sliding block (12), and the right end of the second lead screw (11) penetrates through the fourth through groove and extends to the outside of the adjusting box (10), a hand wheel (15) is connected to the right end of the second lead screw (11), a rack (16) is fixed at the bottom end of the second slider (12), a third gear (17) is fixedly sleeved on the outer side of the fixed shaft (13), the third gear (17) is meshed with the rack (16), a fifth through groove is formed in the front-back direction of the inner front side wall of the adjusting box (10) in a communicating mode, a fourth bearing seat is arranged on the inner rear side wall of the adjusting box (10), a fourth ball bearing is rotatably fixed in the fourth bearing seat, the rear end of the fixed shaft (13) is in interference fit with the fourth ball bearing, and the front end of the fixed shaft (13) penetrates through the fifth through groove and extends out of the adjusting box (10);

a magnetic therapy apparatus is arranged above the fixed shaft (13) or the lying plate (1), a magnetic gathering device is arranged in the magnetic therapy apparatus, the magnetic gathering device comprises a circular groove plate (122), a permanent magnet (123), a moving sleeve (124) and a conical block (125), the opening direction of the circular groove plate (122) faces downwards, the permanent magnet (123) is installed in the middle of the top end of the inner wall of the circular groove plate (122), the top of the moving sleeve (124) is inserted into a gap between the outer wall of the permanent magnet (123) and the inner wall of the circular groove plate (122), the outer wall of the moving sleeve (124) is in contact with the inner wall of the circular groove plate (122), the inner wall of the moving sleeve (124) is separated from the outer wall of the permanent magnet (123), the bottom of the moving sleeve (124) is located below the circular groove plate (122), the left lower side and the right lower side of the moving sleeve (124) are respectively connected with the lower sides of the two groups of adjusting devices, and the conical block (125) is installed at the bottom of the moving sleeve (24);

the permanent magnet (123) is prepared by adopting a flexible bonded neodymium iron boron magnet, and the preparation method of the flexible bonded neodymium iron boron magnet comprises the following steps:

2. An improved magnetic therapy bed as claimed in claim 1, wherein there are four sets of fixed blocks (5), the right sides of the two sets of fixed blocks (5) on the left side are provided with first bearing seats, first ball bearings are rotatably fixed in the two groups of first bearing seats, the left ends of the two groups of first lead screws (4) are respectively in interference fit with the two groups of first ball bearings, the right ends of the two groups of first lead screws (4) are screwed out from the left side of the first sliding block (3) to the right side of the first sliding block (3), the right ends of the two groups of first lead screws (4) respectively penetrate through the two groups of second through grooves and respectively extend out to the right sides of the two groups of fixed blocks (5) positioned on the right side, the right side of the cross beam (2) is provided with a second bearing seat, and a second ball bearing is rotatably fixed in the second bearing seat, the left end of the rotating shaft (6) is in interference fit with the second ball bearing, and a handle (9) is rotatably fixed on the right side of the first gear (7).

3. An improved magnetic therapy bed as claimed in claim 1, wherein the forward and backward adjustment mechanism comprises two sets of limit knobs (23), two sets of sliding plates (24) and two sets of support rods (25), the top ends of the two sets of support rods (25) are respectively connected with the left and right sides of the bottom end of the cross beam (2), the two sets of sliding plates (24) are respectively installed inside the bottom ends of the two sets of support rods (25), the left and right sides of the lying plate (1) are respectively provided with a first sliding groove (26) in the forward and backward directions, the left and right sides of the extending plate (18) are respectively provided with a second sliding groove (27) in the forward and backward directions, the two sets of first sliding grooves (26) are respectively communicated with the two sets of second sliding grooves (27), and the two sets of limit knobs (23) are respectively screwed into the two sets of first sliding grooves (26).

4. An improved magnetotherapeutic bed as claimed in claim 1, wherein the longitudinal adjustment mechanism comprises a first electric telescopic rod (28) and a set of supporting springs (29), both the first electric telescopic rod (28) and the set of supporting springs (29) connecting the first slider (3) and the adjustment box (10).

5. An improved magnetic therapy bed as claimed in any one of claims 1 to 4, further comprising an extension plate (18), two sets of folding plates (19), a bottom plate (30), two sets of brackets (31) and two sets of second electric telescopic rods (32), wherein the front side of the bottom end of the lying plate (1) is connected with an auxiliary plate (20), the extension plate (18) is connected with the front side of the lying plate (1), the outer ends of the two sets of folding plates (19) are respectively connected with the front side of the extension plate (18) and the front lower side of the auxiliary plate (20), the inner ends of the two sets of folding plates (19) are mutually connected with a shaft, and the two sets of folding plates (19) are respectively connected with a limiting piece (21) and a 'L' -shaped limiting frame (22) by a shaft;

the top ends of the two groups of brackets (31) are respectively and axially connected with the left front side and the left rear side of the bottom end of the lying plate (1), the bottom ends of the two groups of brackets (31) are respectively and axially connected with the top end of the bottom plate (30), the top ends of the two groups of second electric telescopic rods (32) are respectively and axially connected with the right front side and the right rear side of the bottom end of the lying plate (1), slide rails (33) are transversely arranged on the right front side and the right rear side of the top end of the bottom plate (30), slide sheets (34) can be slidably fixed at the positions of the two groups of slide rails (33), and the bottom ends of the two groups of second electric telescopic rods (32) are respectively installed at the top ends of the two groups of slide sheets (34); the bottom end of the bottom plate (30) is connected with a self-locking universal wheel set (35) and further comprises a third lead screw set (36), the bottom end of the third lead screw set (36) penetrates out of the top end of the bottom plate (30) to the lower portion of the bottom plate (30), and the top end and the bottom end of the third lead screw set (36) are respectively connected with a rotary lug set (37) and a weighting piece set (38).

6. An improved magnetic therapeutic bed as claimed in any one of claims 1 to 4, wherein the adjustment means comprises a cylinder (126), a push rod (127) and a push plate (128), the cylinder (126) being mounted on the arcuate moving plate (170), the push rod (127) being mounted on the cylinder (126), the left side of the push plate (128) being mounted on the moving sleeve (124), the right side of the push plate (128) being mounted on the bottom of the push rod (127).

7. An improved magnetic therapy bed as claimed in claim 6, further comprising a laser range finder (130) and a central control box (131), wherein the laser range finder (130) is mounted on the top of the push plate (128) on the adjusting device, the top position of the laser range finder (130) corresponds to the left front position of the bottom of the resin layer (129) on the front circular groove plate (122), the laser range finder (130) is in signal connection with the central control box (131), and the central control box (131) is in signal connection with the motor.

8. An improved magnetic therapeutic bed as claimed in claim 7, wherein the first through groove, the two sets of second through grooves, the third through groove, the fourth through groove and the fifth through groove are all rotatably fixed with ball sets, and the six ball sets are respectively in close contact with the cross beam (2), the two sets of first screw rods (4), the fixed rod (14), the second screw rod (11) and the fixed shaft (13).

9. An improved magnetic therapeutic bed as defined in claim 8, wherein the volume of said aqueous solution of rubidium chloride of step 1): the volume of the ferrous sulfate aqueous solution is 1: 4-1: 6; volume of the rubidium chloride aqueous solution in step 1): the volume of the sodium borohydride aqueous solution is 1: 5-1: 9; 80-90 parts of rapidly quenched neodymium iron boron magnetic powder, 0.2-5 parts of ferrocene magnetic powder, 0.5-5 parts of titanate coupling agent, 5-8 parts of bisphenol A epoxy resin and 0.5-2 parts of nano alumina powder.

10. The improved magnetic therapy bed as claimed in claim 9, wherein the step 3) of surface treatment of nano alumina powder with titanate coupling agent comprises drying nano alumina powder at 60-90 ℃, then putting the dried nano alumina powder into ethanol solution, stirring to obtain suspension of nano alumina powder, then adding titanate coupling agent, stirring and drying; the particle size of the nano alumina powder is 40-60 mu m.