CN108354752B

CN108354752B - Reduce patient secondary damage's operation table of interchangeable bed board

Info

Publication number: CN108354752B
Application number: CN201810287288.3A
Authority: CN
Inventors: 雷杰; 姜涛; 张娜; 刘金龙
Original assignee: Individual
Current assignee: Lei Jie
Priority date: 2017-12-17
Filing date: 2018-03-31
Publication date: 2020-04-03
Anticipated expiration: 2038-03-31
Also published as: CN108354752A

Abstract

The invention belongs to the technical field of beds, and particularly relates to an operating bed with a replaceable bed board, which can reduce the secondary damage of a patient, and comprises a bed frame, bed guardrails, a deformation mechanism, a bed board, a first fixing plate, a cross outer guide rail, an inner guide rail, a cam, a swinging plate, a first ring sleeve and the like, wherein the bed board slides in a main guide rail formed by the cross guide rail and the inner guide rail through a bed board sliding block, and the bed board sliding block slides out of the main guide rail and enters another bed position, so that the bed board can be replaced under the condition of not moving the body of the patient, and the secondary damage to the wound of the patient in the process of moving the patient is avoided; the worker can deform the deformation wheel from a flat wheel state to a state close to a round wheel by swinging the first handle, the second handle or the first handle is swung to drive the deformation wheel to rotate, and the rotating deformation wheel replaces the bed sheet, so that the aim of replacing the bed sheet under the condition that a patient is not required to get out of bed is fulfilled; the structure is simple, and the use effect is good.

Description

Reduce patient secondary damage's operation table of interchangeable bed board

Technical Field

The invention belongs to the technical field of beds, and particularly relates to an operating bed with a replaceable bed plate, which can reduce secondary injury of a patient.

Background

At present, for a traditional operation bed, when a patient lying on the operation bed needs to be transferred from the operation bed to another operation bed, a plurality of medical workers are often required to lift the patient to slowly move the patient to the operation bed aside; when the patient is seriously injured due to emergency or after a major operation, the patient does not need to move to transfer the operating bed, so that secondary injury to the wound of the patient in the process of moving the patient can be avoided; at present, for a traditional operating bed, bed sheets on the operating bed generally need to be replaced regularly by workers; when a patient is injured due to an emergency or after an operation is finished, a bed sheet on an operating bed usually has some bloodstains or dirty objects, and the bed sheet is easily polluted; however, the patient is injured or is inconvenient to get out of the bed after the operation, so that the bed sheet is inconvenient to replace for the staff; in order to ensure that the bed sheet can still be replaced under the condition that a patient does not get out of the bed; in order to solve the defect that the bed board and the bed sheet can not be replaced in the traditional operating bed, an operating bed with the bed board and the bed sheet replaceable is needed.

The invention designs an operating table with a replaceable bed plate for reducing the secondary damage of a patient, and solves the problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention discloses an operating table with a replaceable bed plate for reducing secondary injury of a patient, which is realized by adopting the following technical scheme.

The utility model provides a reduce operation table of patient secondary damage's interchangeable bed board which characterized in that: the novel bed comprises a bed plate, a first fixing plate, a bed plate sliding block, a cylindrical groove, a cylindrical support, a cross outer guide rail, a steel wire rope, an inner guide rail, a cam, a swing plate, a second fixing plate, a third spring, a fourth fixing plate, a C-shaped spring, a second ring sleeve, a telescopic outer sleeve, a fifth fixing plate, a telescopic inner shaft, a chamfer, a fourth spring, a first ring sleeve, a fifth guide block, a fifth spring, a sixth fixing plate, a ring sleeve groove, a telescopic inner shaft hole and a fifth guide groove, wherein the cylindrical groove is formed in the middle of the first fixing plate; one end of the cylindrical support is nested in the cylindrical groove, and the other end of the cylindrical support is provided with a cross outer guide rail.

The structures installed at any ends of the cross outer guide rails are the same; two third fixing plates are symmetrically arranged on two side surfaces of the cross-shaped guide rail at any end of the cross-shaped outer guide rail; a second fixing plate is arranged on the lower plate surface of the cross guide rail; one end of the inner guide rail is nested in the cross guide rail; the inner guide rail slides in the cross guide rail; chamfers are arranged on the end surfaces of the inner guide rails entering the cross guide rails; two fourth fixing plates are symmetrically arranged on two side surfaces of the inner guide rail; a third spring is arranged between the third fixing plate and the fourth fixing plate on the same side of the inner guide rail; the swinging plate is arranged on one end of the inner guide rail, which does not enter the cross guide rail, through a shaft; one end of the C-shaped spring is arranged on the swinging plate, and the other end of the C-shaped spring is arranged on the lower plate surface of the inner guide rail; the second ring sleeve is arranged on the lower plate surface of the inner guide rail through a sixth fixing plate; the inner circle surface of the second ring sleeve is provided with a ring sleeve groove; a first ring sleeve is arranged on the outer circular surface of the telescopic outer sleeve; the telescopic outer sleeve is arranged in the ring sleeve groove through a first ring sleeve; both ends of the telescopic outer sleeve penetrate through the second ring sleeve; the inner circle surface of the telescopic outer sleeve is provided with threads; one end of the telescopic outer sleeve is provided with a cam; the cam is matched with the swinging plate; the fourth spring is nested on the telescopic outer sleeve; one end of the fourth spring is arranged on the side surface of the cam, and the other end of the fourth spring is arranged on the side surface of the second ring sleeve; the fifth fixing plate is arranged on the lower plate surface of the inner guide rail; the fifth fixing plate is provided with a telescopic inner shaft hole; two fifth guide grooves are symmetrically formed in the outer circular surface of the telescopic inner shaft hole; two fifth guide blocks are symmetrically arranged on the outer circular surface of the telescopic inner shaft; the telescopic inner shaft is arranged in the telescopic inner shaft hole; the telescopic inner shaft slides in the fifth guide groove through the fifth guide block; a fifth spring is arranged between the fifth guide block and the groove surface of the fifth guide groove and is positioned in the fifth guide groove; the outer circle surface of one end of the telescopic inner shaft is provided with a thread; one end of the telescopic inner shaft with the screw thread penetrates through the telescopic inner shaft hole and is arranged in the telescopic outer sleeve in a screw thread matching mode; the other end of the telescopic inner shaft penetrates through the telescopic inner shaft hole; one end of the steel wire rope is connected to the second fixing plate, and the other end of the steel wire rope is connected to the end face of the telescopic inner shaft.

A bed plate sliding block is arranged in the middle of the lower plate surface of the bed plate; the bed board slides in a main guide rail formed by the cross guide rail and the inner guide rail through the bed board slide block.

The bed plate comprises a bed frame, a deformation mechanism, a first handle, a second handle, a shaft hole, a first guide groove, a bed support plate, a first shaft, a second shaft, a third synchronous belt gear A, a third synchronous belt gear B, a first driving gear, a second driving gear, a third synchronous belt, a first sliding gear, a first arc-shaped guide rail, a first synchronous belt gear A, a first synchronous belt, a second arc-shaped guide rail, a second sliding gear, a second synchronous belt gear A, a first synchronous belt gear C, a second spring and a second guide block, wherein the bed frame consists of a head plate, a tail plate, a first plate and a second plate; the headboard and the footboard are symmetrical; the first plate and the second plate are symmetrical; a plurality of groups of bed supporting plates are uniformly distributed in the bed frame; two ends of the bed supporting plate are respectively connected with the first plate and the second plate; the plate surfaces at the two ends of the bed supporting plate are respectively provided with a shaft hole; a plurality of groups of first guide grooves are symmetrically formed in the two side plate surfaces of the bed supporting plate respectively; a plurality of groups of first guide grooves are formed in one side face of the headboard and one side face of the footboard; the plate surfaces at the two ends of the headboard and the footboard are respectively provided with a shaft hole; the first guide grooves on the head plate and the tail plate respectively correspond to the first guide grooves on the corresponding bed supporting plates one by one; the shaft holes on the head plate and the tail plate are matched with the corresponding shaft holes on the bed supporting plate.

One end of the first shaft is provided with a first handle, and the other end of the first shaft is inserted into a corresponding shaft hole on the bed tail plate through one of two shaft holes on the bed head plate and a corresponding shaft hole on the bed supporting plate; the third synchronous belt gear A is arranged on the outer circular surface of the first shaft and is positioned between the first handle and the headboard; a plurality of first driving gears are arranged on the outer circular surface of the first shaft; each bed supporting plate corresponds to one first driving gear; the bed tail plate corresponds to a first driving gear.

One end of the second shaft is provided with a second handle, and the other end of the second shaft is inserted into a corresponding shaft hole on the bed tail plate through another shaft hole on the bed head plate and a corresponding shaft hole on the bed supporting plate; a third synchronous belt gear B is arranged on the outer circular surface of the second shaft and is positioned between the first handle and the headboard; a plurality of second driving gears are arranged on the outer circular surface of the second shaft; each bed supporting plate corresponds to one second driving gear; the bed tail plate corresponds to a second driving gear.

The third synchronous belt gear A and the third synchronous belt gear B are not in the same plane any more; the third synchronous belt is respectively arranged on the outer circular surfaces of the third synchronous belt gear A and the third synchronous belt gear B in a crossed mode.

The structures between the head plate and the bed supporting plate, between the tail plate and the bed supporting plate or between the two bed supporting plates are the same as the structures of the bed supporting plates and the bed supporting plates; for the structure between the headboard and the bed supporting plate and the structure between the headboard and the bed supporting plate, a deformation mechanism is arranged between each pair of first guide grooves between the headboard and the bed supporting plate; the first arc-shaped guide rail is arranged on the board surface of the headboard close to the first shaft; the second guide block is arranged in the first arc-shaped guide rail; the second spring is arranged in the first arc-shaped guide rail; one end of the second spring is arranged on the second guide block, and the other end of the second spring is arranged on the wall surface of the first arc-shaped guide rail; the first sliding gear is arranged on the second guide block through a shaft; the first sliding gear slides in the first arc-shaped guide rail through the second guide block; the first sliding gears are meshed with the corresponding first driving gears; the first synchronous belt gear A is arranged on the board surface of the headboard close to the first shaft through a shaft; the first synchronous belt gear C is arranged on the board surface of the headboard close to the second shaft through a shaft.

The second arc-shaped guide rail is arranged on the surface of the headboard close to the second shaft; the second guide block is arranged in the second arc-shaped guide rail; the second spring is arranged in the second arc-shaped guide rail; one end of the second spring is arranged on the second guide block, and the other end of the second spring is arranged on the wall surface of the second arc-shaped guide rail; the second sliding gear is arranged on the second guide block through a shaft; the second sliding gear slides in the second arc-shaped guide rail through the second guide block; the second sliding gear is meshed with the corresponding second driving gear; the second synchronous belt gear A is arranged on the surface of the headboard close to the second shaft through a shaft; and a second synchronous belt gear C is arranged on the board surface of the headboard close to the first shaft through a shaft.

The deformation mechanism comprises a first spring, a first guide block, a third shaft, a second synchronous belt gear B, a first synchronous belt gear B, a deformation wheel, a first right-angle bent plate and a second right-angle bent plate, wherein the first guide block is arranged at each of two ends of the third shaft; the third shaft slides in the corresponding first guide grooves through the two first guide blocks; a first spring is arranged between the first guide block and the groove surface of the first guide groove and is positioned in the first guide groove; the second synchronous belt gear B and the first synchronous belt gear B are both arranged on the outer circular surface of the third shaft; the second synchronous belt gear B and the second synchronous belt gear A are positioned on the same plane; the first sliding gear, the first synchronous belt gear B, the first synchronous belt gear A and the first synchronous belt gear C are positioned on the same plane; the second sliding gear, the second synchronous belt gear B, the second synchronous belt gear A and the second synchronous belt gear C are positioned on the same plane; the first right-angle bent plate is formed by bending for multiple times, and the second right-angle bent plate is formed by bending for multiple times; the first right-angle bent plate is nested on the third shaft through a central hole, and one end of the first right-angle bent plate is connected with the first synchronous belt gear B; the second right-angle bent plate is arranged on the third shaft through a central hole; the first right-angle bent plate and the second right-angle bent plate are matched in a staggered mode; the deformation wheel is nested on the third shaft; the inner circle surface of the deformation wheel is contacted with the first right-angle bending plate and the second right-angle bending plate.

The first timing belt is engaged with the plurality of first timing belt gears B in a wave form, and wraps the first sliding gear, the first timing belt gear a, the first timing belt gear C, and the outermost first timing belt gear B near the first timing belt gear C.

The second hold-in range meshes with a plurality of second hold-in range gear B mutually with wave form, and wraps up second sliding gear, second hold-in range gear A, second hold-in range gear C and the outermost end second hold-in range gear B that is close to second hold-in range gear C.

As a further improvement of the technology, when the inner guide rail does not slide in the cross guide rail, the steel wire rope is in a loose state.

As a further improvement of the technology, it also includes bed guardrails; the upper end surfaces of the headboard and the footboard are respectively provided with a bed guardrail.

As a further improvement of this technique, the deforming wheel has elasticity.

As a further improvement of the present technology, the first arc-shaped guide rail and the second arc-shaped guide rail have the same structure.

Compared with the traditional bed technology, the bed board slides in the main guide rail formed by the cross guide rail and the inner guide rail through the bed board sliding block, and the bed board sliding block slides out of the main guide rail and enters another bed position, so that the bed board is replaced under the condition that the body of a patient is not moved, and secondary damage to the wound of the patient in the process of moving the patient is avoided; according to the bed sheet replacing device, the deformation wheel is deformed from a flat wheel state to a round wheel state by swinging the first handle, the second handle is swung to drive the deformation wheel to rotate, and the bed sheet is replaced by the rotating deformation wheel, so that the purpose that the bed sheet can still be replaced under the condition that a patient is not required to get off the bed is achieved; the structure is simple, and the use effect is good.

Drawings

Fig. 1 is a schematic view of the overall component distribution.

Fig. 2 is a schematic view of the bedplate slide block installation.

Fig. 3 is a schematic diagram of a first fixing plate structure.

Fig. 4 is a schematic view of the installation of the inner rail.

Fig. 5 is a schematic structural view of the cross outer guide rail.

Fig. 6 is a schematic view of the fifth fixing plate.

Fig. 7 is a schematic view of the inner rail structure.

Fig. 8 is a schematic view of a wobble plate structure.

Fig. 9 is a cam installation schematic.

Figure 10 is a schematic cross-sectional elevation view of the inner telescoping shaft and outer telescoping sleeve.

Figure 11 is a first collar installation schematic.

Fig. 12 is a schematic cross-sectional view of a second collar.

Fig. 13 is a perspective view of a fifth fixing plate.

Fig. 14 is an overall schematic view of the bed plate.

Fig. 15 is a perspective view of the bed board.

Fig. 16 is an overall schematic view of the bed base.

Fig. 17 is a schematic view of a bed support plate structure.

Fig. 18 is a schematic view of the structure of the bed head.

FIG. 19 is a schematic view of the installation of the first and second handles.

Figure 20 is a third timing belt installation schematic.

FIG. 21 is a schematic view of a plurality of deformation mechanisms in cooperation.

Fig. 22 is a schematic view of a deformation mechanism.

Fig. 23 is a schematic sectional view of the deforming mechanism.

Fig. 24 is a schematic view of the first guide block installation.

Fig. 25 is a first quarter bend plate installation schematic.

FIG. 26 is a second quarter bend mounting schematic.

Fig. 27 is a first timing belt installation diagram.

Figure 28 is a second timing belt installation schematic.

Fig. 29 is a first sliding gear installation schematic.

Fig. 30 is a second guide block installation schematic.

Fig. 31 is a perspective schematic view of a first arcuate rail.

Fig. 32 is a schematic view of the deformation principle of the deforming wheel.

Fig. 33 is a schematic view of the synchronous driving of the first and second timing belt gears a and B.

Number designation in the figures: 1. a bed frame; 2. bed guard rails; 3. a deformation mechanism; 4. a first handle; 5. a second handle; 6. a headboard; 7. a bed tail plate; 8. a shaft hole; 9. a first guide groove; 10. a bed support plate; 11. a first shaft; 12. a second shaft; 13. a third synchronous belt gear A; 14. a third synchronous belt gear B; 15. a first drive gear; 16. a second drive gear; 17. a third synchronous belt; 18. a first sliding gear; 19. a first arcuate guide rail; 20. a first synchronous belt gear A; 21. a first synchronization belt; 22. a second synchronous belt; 23. a second arcuate guide rail; 24. a second sliding gear; 25. a second synchronous belt gear A; 26. a first spring; 27. a first guide block; 28. a third axis; 29. a second synchronous belt gear B; 30. a first synchronous belt gear B; 31. a deformation wheel; 32. a first right angle bending plate; 33. a second right angle bending plate; 34. a first synchronous belt gear C; 35. a second timing belt gear C; 36. a second spring; 37. a second guide block; 38. a first plate; 39. a second plate; 50. a bed board; 51. a first fixing plate; 52. a bed board slide block; 53. a cylindrical groove; 54. cylindrical support; 55. a cross outer guide rail; 56. a wire rope; 57. an inner guide rail; 58. a cam; 59. a swinging plate; 60. a second fixing plate; 61. a third fixing plate; 62. a third spring; 63. a fourth fixing plate; 64. a C-shaped spring; 65. a second loop; 66. a telescopic outer sleeve; 67. a fifth fixing plate; 68. a telescopic inner shaft; 69. chamfering; 70. a fourth spring; 71. a first loop; 72. a fifth guide block; 73. a fifth spring; 74. a sixth fixing plate; 75. a ring sleeve groove; 76. a telescopic inner shaft hole; 77. and a fifth guide groove.

Detailed Description

As shown in fig. 1, it includes a bed plate 50, a first fixing plate 51, a bed plate slide block 52, a cylindrical groove 53, a cylindrical support 54, a cross outer guide rail 55, a wire rope 56, an inner guide rail 57, a cam 58, a swing plate 59, a second fixing plate 60, a third fixing plate 61, a third spring 62, a fourth fixing plate 63, a C-shaped spring 64, a second ring sleeve 65, a telescopic outer sleeve 66, a fifth fixing plate 67, a telescopic inner shaft 68, a chamfer 69, a fourth spring 70, a first ring sleeve 71, a fifth guide block 72, a fifth spring 73, a sixth fixing plate 74, a ring sleeve groove 75, a telescopic inner shaft hole 76, and a fifth guide groove 77, as shown in fig. 3, wherein the cylindrical groove 53 is opened at a middle position on the first fixing plate 51; as shown in fig. 4, one end of the cylindrical support 54 is nested in the cylindrical groove, and the other end is mounted with a cross outer guide 55.

As shown in fig. 5, the structure to which either end of the cross outer rail 55 is attached is the same; two third fixing plates 61 are symmetrically arranged on two side surfaces of the cross-shaped guide rail 55 at any end of the cross-shaped outer guide rail 55; a second fixing plate 60 is arranged on the lower plate surface of the cross guide rail; as shown in fig. 4 and 6, one end of the inner rail 57 is nested in the cross rail; the inner guide rail 57 slides in the cross guide rail; the end faces of the inner guide rails 57 entering the cross guide rails are provided with chamfers 69; as shown in fig. 7, two fourth fixing plates 63 are symmetrically installed on both side surfaces of the inner rail 57; a third spring 62 is arranged between the third fixing plate 61 and the fourth fixing plate 63 on the same side of the inner guide rail 57; as shown in fig. 4 and 8, a swing plate 59 is mounted on one end of the inner rail 57 not entering the cross rail through a shaft; one end of the C-shaped spring 64 is mounted on the swing plate 59, and the other end is mounted on the lower plate surface of the inner guide rail 57; as shown in fig. 6 and 9, the second loop 65 is mounted on the lower plate surface of the inner rail 57 through a sixth fixing plate 74; as shown in fig. 12, the second collar 65 has a collar groove 75 formed on an inner circumferential surface thereof; as shown in fig. 11, a first loop 71 is mounted on the outer circumferential surface of the telescopic outer sleeve 66; as shown in fig. 10, the telescopic outer sleeve 66 is mounted in the sleeve groove 75 by the first sleeve 71; both ends of the telescopic outer sleeve 66 penetrate through the second ring sleeve 65; the inner circular surface of the telescopic outer sleeve 66 is provided with screw threads; one end of the telescopic outer sleeve 66 is provided with a cam 58; as shown in fig. 4, the cam 58 cooperates with a wobble plate 59; as shown in fig. 9 and 10, the fourth spring 70 is nested on the telescoping outer sleeve 66; one end of the fourth spring 70 is mounted on the side of the cam 58 and the other end is mounted on the side of the second collar 65; as shown in fig. 6, the fifth fixing plate 67 is mounted on the lower plate surface of the inner rail 57; as shown in fig. 13, the fifth fixing plate 67 has a telescopic inner shaft hole 76; two fifth guide grooves 77 are symmetrically formed on the outer circular surface of the telescopic inner shaft hole 76; as shown in fig. 11, two fifth guide blocks 72 are symmetrically mounted on the outer circular surface of the telescopic inner shaft 68; the telescopic inner shaft 68 is mounted in the telescopic inner shaft hole 76; the telescopic inner shaft 68 slides in the fifth guide groove 77 through the fifth guide block 72; a fifth spring 73 is arranged between the fifth guide block 72 and the groove surface of the fifth guide groove 77, and the fifth spring 73 is positioned in the fifth guide groove 77; as shown in fig. 10, the outer circumferential surface of one end of the telescopic inner shaft 68 is threaded; the end of the telescopic inner shaft 68 with screw thread penetrates through the telescopic inner shaft hole 76 and is installed in the telescopic outer sleeve 66 in a screw thread matching way; the other end of the telescopic inner shaft 68 penetrates through the telescopic inner shaft hole 76; as shown in fig. 4, 5, and 6, one end of the wire rope 56 is connected to the second fixing plate 60, and the other end is connected to an end surface of the telescopic inner shaft 68.

As shown in fig. 2, a bed plate slide block 52 is installed at the middle position of the lower plate surface of the bed plate 50; the bed plate 50 slides in the general guide rail formed by the cross guide rail and the inner guide rail 57 through the bed plate slide block 52.

As shown in fig. 14 and 15, it comprises a bed frame 1, a deforming mechanism 3, a first handle 4, a second handle 5, a shaft hole 8, a first guide groove 9, a bed support plate 10, a first shaft 11, a second shaft 12, a third timing belt gear a13, a third timing belt gear B14, a first drive gear 15, a second drive gear 16, a third timing belt 17, a first sliding gear 18, a first arc-shaped guide rail 19, a first timing belt gear a20, a first timing belt 21, a second timing belt 22, a second arc-shaped guide rail 23, a second sliding gear 24, a second timing belt gear a25, a first timing belt gear C34, a second timing belt gear C35, a second spring 36, and a second guide block 37, as shown in fig. 16, wherein the bed frame 1 is composed of a headboard 6 and a footboard 7, a first board 38 and a second board 39; the headboard 6 and the footboard 7 are symmetrical; the first plate 38 and the second plate 39 are symmetrical; a plurality of groups of bed supporting plates 10 are uniformly distributed in the bed frame 1; the bed support plate 10 is connected at both ends to a first plate 38 and a second plate 39, respectively; as shown in fig. 17, the plate surfaces at the two ends of the bed supporting plate 10 are respectively provided with a shaft hole 8; a plurality of groups of first guide grooves 9 are symmetrically formed in the two side plate surfaces of the bed supporting plate 10 respectively; as shown in fig. 18, a plurality of groups of first guide grooves 9 are formed on one side surface of the headboard 6 and one side surface of the footboard 7; the plate surfaces at the two ends of the headboard 6 and the footboard 7 are respectively provided with an axle hole 8; the first guide grooves 9 on the head plate 6 and the tail plate 7 respectively correspond to the first guide grooves 9 on the corresponding bed supporting plates 10 one by one; the axle holes 8 on the head plate 6 and the tail plate 7 are matched with the corresponding axle holes 8 on the bed supporting plate 10.

As shown in fig. 19, one end of the first shaft 11 is provided with the first handle 4, and the other end thereof is inserted into the corresponding shaft hole 8 of the footboard 7 through one shaft hole 8 of the two shaft holes 8 of the footboard 6 and the corresponding shaft hole 8 of the footboard support board 10; the third synchronous belt gear A13 is arranged on the outer circular surface of the first shaft 11, and the third synchronous belt gear A13 is positioned between the first handle 4 and the headboard 6; a plurality of first driving gears 15 are arranged on the outer circular surface of the first shaft 11; one first driving gear 15 for each bed support plate 10; the footboard 7 corresponds to a first driving gear 15.

As shown in fig. 19, one end of the second shaft 12 is provided with the second handle 5, and the other end is inserted into the corresponding shaft hole 8 of the footboard 7 through the other shaft hole 8 of the footboard 6 and the corresponding shaft hole 8 of the footboard support plate 10; the third synchronous belt gear B14 is arranged on the outer circular surface of the second shaft 12, and the third synchronous belt gear B14 is positioned between the first handle 4 and the headboard 6; a plurality of second driving gears 16 are arranged on the outer circular surface of the second shaft 12; one second driving gear 16 for each bed supporting plate 10; the bed tail plate 7 corresponds to a second driving gear 16.

As shown in fig. 20, the third timing belt gear a13 and the third timing belt gear B14 are no longer in the same plane; the third timing belt 17 is installed on the outer circumferential surfaces of the third timing belt gear a13 and the third timing belt gear B14, respectively, in a crossed manner.

As shown in fig. 16, the structure between the headboard 6 and the bed supporting board 10, the structure between the footboard 7 and the bed supporting board 10 or between the two bed supporting boards 10 are the same; as shown in fig. 21, for the structure between and installed on the headboard 6 and the bed support plate 10, one deforming mechanism 3 is installed between each pair of first guide slots 9 between the headboard 6 and the bed support plate 10; the first arc-shaped guide rail 19 is arranged on the board surface of the headboard 6 close to the first shaft 11; as shown in fig. 29, 30 and 31, the second guide block 37 is installed in the first arc rail 19; the second spring 36 is mounted in the first arcuate rail 19; one end of the second spring 36 is mounted on the second guide block 37, and the other end is mounted on the wall surface of the first arc-shaped guide rail 19; the first slide gear 18 is mounted on the second guide block 37 by a shaft; the first sliding gear 18 slides in the first arc-shaped guide rail 19 through the second guide block 37; as shown in fig. 21, the first slide gears 18 are engaged with the respective first drive gears 15; the first synchronous belt gear A20 is mounted on the board surface of the headboard 6 close to the first shaft 11 through a shaft; the first timing belt gear C34 is mounted on the board of the headboard 6 near the second axle 12 through the axle.

As shown in fig. 21, 29, 30 and 31, the second arc-shaped guide rail 23 is installed on the board surface of the headboard 6 close to the second shaft 12; the second guide block 37 is installed in the second arc guide rail 23; the second spring 36 is mounted in the second arcuate rail 23; one end of the second spring 36 is mounted on the second guide block 37, and the other end is mounted on the wall surface of the second arc-shaped guide rail 23; the second slide gear 24 is mounted on the second guide block 37 by a shaft; the second sliding gear 24 slides in the second arc-shaped guide rail 23 through the second guide block 37; the second sliding gears 24 are engaged with the corresponding second driving gears 16; the second synchronous belt gear A25 is mounted on the board surface of the headboard 6 close to the second shaft 12 through a shaft; the second timing belt gear C35 is mounted on the board of the headboard 6 near the first shaft 11 through a shaft.

As shown in fig. 22, the deforming mechanism 3 includes a first spring 26, a first guide block 27, a third shaft 28, a second timing belt gear B29, a first timing belt gear B30, a deforming wheel 31, a first right-angle bending plate 32, and a second right-angle bending plate 33, as shown in fig. 23 and 24, wherein the first guide block 27 is mounted at each end of the third shaft 28; the third shaft 28 slides in the respective first guide slots 9 through the two first guide blocks 27; a first spring 26 is arranged between the first guide block 27 and the groove surface of the first guide groove 9, and the first spring 26 is positioned in the first guide groove 9; the second synchronous belt gear B29 and the first synchronous belt gear B30 are both arranged on the outer circular surface of the third shaft 28; the second synchronous belt gear B29 and the second synchronous belt gear A25 are positioned on the same plane; as shown in fig. 27, the first slide gear 18, the first timing belt gear B30, the first timing belt gear a20, and the first timing belt gear C34 are on the same plane; as shown in fig. 28, the second slide gear 24, the second timing belt gear B29, the second timing belt gear a25, and the second timing belt gear C35 are on the same plane; as shown in fig. 25, the first quarter bend 32 is formed by bending a plurality of times, and the second quarter bend 33 is formed by bending a plurality of times; the first quarter bend plate 32 is nested on the third shaft 28 through a central hole, and one end of the first quarter bend plate 32 is connected with a first synchronous belt gear B30; as shown in fig. 26, the second quarter bend plate 33 is mounted on the third shaft 28 through a center hole; the first right-angle bent plate 32 and the second right-angle bent plate 33 are mutually matched in a staggered way; as shown in fig. 23, the deforming wheel 31 is nested on the third shaft 28; the inner circumferential surface of the deforming wheel 31 is in contact with the first quarter bend 32 and the second quarter bend 33.

As shown in fig. 27, the first timing belt 21 is engaged with the plurality of first timing belt gears B30 in a wave form and wraps the first slide gear 18, the first timing belt gear a20, the first timing belt gear C34, and the outermost first timing belt gear B30 adjacent to the first timing belt gear C34.

As shown in fig. 28, the second timing belt 22 is engaged with the plurality of second timing belt gears B29 in a wave form, and wraps the second slide gear 24, the second timing belt gear a25, the second timing belt gear C35, and the outermost second timing belt gear B29 adjacent to the second timing belt gear C35.

As shown in fig. 4, when the inner rail 57 is not slid in the cross rail, the wire rope 56 is in a slack state.

As shown in fig. 16, it includes a bed fence 2; the upper end surfaces of the headboard 6 and the footboard 7 are respectively provided with a bed guardrail 2.

As shown in fig. 22, the deforming wheel 31 has elasticity.

As shown in fig. 21, the first arcuate rail 19 and the second arcuate rail 23 have the same structure.

As shown in fig. 4, in the present invention, one end of the cylindrical support 54 is nested in the cylindrical groove, and the other end is mounted with the cross outer guide 55, so that the cross outer guide 55 can rotate around the axis of the cylindrical support 54. As shown in fig. 1 and 2, the bedplate 50 slides in the total guide rail formed by the cross guide rail and the inner guide rail 57 through the bedplate slide block 52, so that when the bedplate 50 is replaced, the cross guide rail can be rotated to better match with another cross rail, and the bedplate 50 can be replaced in a sliding way at a better angle.

As shown in fig. 6 and 7, the inner rail 57 has a chamfer 69 on the end face entering the cross outer rail 55, so that the bed plate slide 52 can easily slide from the cross outer rail 55 into the inner rail 57.

As shown in fig. 5 and 7, two third fixing plates 61 are symmetrically installed on both side plate surfaces of one end of the cross outer rail 55, two fourth fixing plates 63 are symmetrically installed on both side surfaces of the inner rail 57, and a third spring 62 is installed between the third fixing plates 61 and the fourth fixing plates 63, so that the inner rail 57 can be restored while sliding in the cross outer rail 55.

As shown in fig. 8, the swing plate 59 is mounted on one end of the inner rail 57 through a shaft, one end of the C-shaped spring 64 is mounted on the swing plate 59, and the other end is mounted on the lower plate surface of the inner rail 57, so that the swing plate 59 can be swung to be reset.

As shown in fig. 10, the second collar 65 is mounted on the lower plate surface of the inner rail 57 by the sixth fixing plate 74, the telescopic outer sleeve 66 is mounted in the collar groove 75 by the first collar 71, both ends of the telescopic outer sleeve 66 penetrate through the second collar 65, so that the telescopic outer sleeve 66 is fixed, the telescopic outer sleeve 66 can rotate around its axis, and the telescopic outer sleeve 66 cannot move axially.

As shown in fig. 9, the cam 58 is rotatably restored by mounting one end of the telescopic outer sleeve 66 with the cam 58, and mounting one end of the fourth spring 70 on the side of the cam 58 and the other end on the side of the second collar 65.

As shown in fig. 10 and 13, the fifth fixing plate 67 has a telescopic inner shaft hole 76, and the telescopic inner shaft 68 is fitted in the telescopic inner shaft hole 76, so that the telescopic inner shaft 68 is fixed; the telescopic inner shaft 68 slides in the fifth guide groove 77 through the fifth guide block 72, so that the telescopic inner shaft 68 can reciprocate axially and the telescopic inner shaft 68 cannot rotate around its axis.

As shown in fig. 4, one end of the cable 56 is connected to the second fixing plate 60, and the other end is connected to an end surface of the telescopic inner shaft 68, so that when the cable 56 is in a tensioned state, the inner guide rail 57 can move to pull the telescopic inner shaft 68 to move axially through the cable 56, and further, the telescopic outer sleeve 66 is driven to rotate.

As shown in fig. 4, the cam 58 cooperates with the swing plate 59 such that, on the one hand, when the telescopic inner shaft 68 does not move axially, the telescopic outer sleeve 66 does not rotate, and the cam 58 limits the swing plate 59; on the other hand, when the telescopic inner shaft 68 moves axially, the telescopic outer sleeve 66 rotates, and the cam 58 follows the telescopic outer sleeve 66 to finally release the position of the swing plate 59.

As shown in fig. 4, the inner rail 57 is designed to slide on the cross outer rail 55 for the purpose of: on one hand, the sliding range of the bedplate sliding block 52 is increased, and the limitation of only using the cross outer guide rail 55 for sliding is avoided. On the other hand, the current sickbed has long edges and wide edges, and the guide rails need to simultaneously move in the directions of the wide edges and the long edges, so the flexibility of the rails is necessary.

As shown in fig. 19, in the present invention, a first handle 4 is mounted at one end of a first shaft 11, and a third timing belt gear a13 and a first driving gear 15 are mounted on the outer circumferential surface of the first shaft 11, so that the first handle 4 can swing to drive the third timing belt gear a13 and the first driving gear 15 to rotate via the first shaft 11; the second handle 5 is mounted at one end of the second shaft 12, and the third timing belt gear B14 and the second driving gear 16 are mounted on the outer circumferential surface of the second shaft 12, so that the second handle 5 can swing to drive the third timing belt gear B14 and the second driving gear 16 to rotate via the second shaft 12.

As shown in fig. 20, the third timing belt 17 is installed on the third timing belt gear a13 and the third timing belt gear B14 in a crossed manner to function as: on one hand, the third synchronous belt gear B14 can drive the third synchronous belt gear A13 to rotate through the third synchronous belt 17, and the rotating directions of the third synchronous belt gear A13 and the third synchronous belt gear B14 are opposite; on the other hand, the third timing belt 17 is installed in a crossed manner, so that the third timing belt 17 is tensioned and is not easily detached from the third timing belt gear a13 and the third timing belt gear B14.

As shown in fig. 24, the first quarter bend 32 is mated with the second quarter bend 33; the contact between the inner circular surface of the deformation wheel 31 and the first quarter bend 32 and the second quarter bend 33 has the following functions: as shown in fig. 32 (a), on the one hand, when the first quarter bend 32 and the second quarter bend 33 are both in the horizontal position, the deformation wheel 31 is in the form of a flat wheel; as shown in fig. 32 (b), when the first quarter bend 32 and the second quarter bend 33 are in mutually perpendicular positions, the deforming wheel 31 is deformed to be in a nearly circular wheel shape.

As shown in fig. 22, the first guide blocks 27 are installed at both ends of the third shaft 28, and the third shaft 28 slides in the first guide groove 9 through the first guide blocks 27, so that the third shaft 28 can reciprocate in the first guide groove 9, and further the deformation wheel 31 can move up and down according to different conditions, and finally the comfort level of the patient lying on the bed is increased.

As shown in fig. 27, the first sliding gear 18 is engaged with the first driving gear 15, and the first synchronous belt 21 is installed on the outer circumference of the first sliding gear 18, so that the first driving gear 15 can drive the first synchronous belt 21 to operate through the first sliding gear 18. As shown in fig. 28, the second sliding gear 24 is engaged with the second driving gear 16, and the second timing belt 22 is installed on the outer circumference of the second sliding gear 24, so that the second driving gear 16 can drive the second timing belt 22 to operate through the second sliding gear 24.

As shown in fig. 21, 29, 30 and 31, the first arc-shaped guide rail 19 is mounted on the headboard 6, and the first sliding gear 18 slides in the first arc-shaped guide rail 19 through the second guide block 37, so that in the process that the first driving gear 15 drives the first sliding gear 18 to rotate, the first sliding gear 18 can be pulled to move along the track of the first arc-shaped guide rail 19 according to different situations, so that the first synchronous belt 21 is still in a tensioned state under different situations, and it is ensured that the first synchronous belt 21 effectively drives the first synchronous belt gear B30 to synchronously rotate. Second arc guide rail 23 is installed on headboard 6, and second sliding gear 24 slides in second arc guide rail 23 through second guide block 37, so second drive gear 16 drives second sliding gear 24 rotatory in-process, can stimulate second sliding gear 24 along the orbital movement of second arc guide rail 23 according to different situation, and then makes second hold-in range 22 still be in taut state under the different situation, has guaranteed that second hold-in range 22 drives second hold-in range gear B29 synchronous revolution effectively.

As shown in fig. 27, the first timing belt gear a20 and the first timing belt gear C34 are both mounted on the headboard 6 through shafts, and the first timing belt 21 is mounted on the outer circular surfaces of the first timing belt gear a20 and the first timing belt gear C34: on the one hand, the first timing belt gear a20 and the first timing belt gear C34 may act as a partial tension to the first timing belt 21; on the other hand, the first timing belt gear a20 and the first timing belt gear C34 can ensure that the first timing belt 21 does not fall off from the gears, and also serve to transfer the first timing belt 21.

As shown in fig. 28, the second timing belt gear a25 and the second timing belt gear C35 are both mounted on the headboard 6 through shafts, and the second timing belt 22 mounted on the outer circular surfaces of the second timing belt gear a25 and the second timing belt gear C35 has the following functions: on one hand, the second synchronous belt gear A25 and the second synchronous belt gear C35 can play a part of tensioning role for the second synchronous belt 22; on the other hand, the second timing belt gear a25 and the second timing belt gear C35 can ensure that the second timing belt 22 does not fall off from the gears, and also play a role in transferring the second timing belt 22.

As shown in fig. 27, the first timing belt 21 rotates the first timing belt gear B30, which in turn rotates the first quarter bend 32, and finally changes the shape of the deforming wheel 31. As shown in fig. 28, the second timing belt 22 rotates the second timing belt gear B29, which in turn rotates the second quarter bend plate 33, and finally rotates the deforming wheel 31.

The specific implementation mode is as follows: when the bedplate 50 does not need to be replaced, the bedplate slide block 52 is basically in the middle position of the cross outer guide rail 55, and the steel wire rope 56 is in a loose state.

When the bed plate 50 needs to be replaced, the bed plate 50 rotates for a certain angle α to be matched with another cross rail for replacement, the bed plate 50 slides in the direction of a certain angle α through the bed plate slide block 52, the cross outer guide rail 55 rotates for a certain angle α to adapt to the sliding of the bed plate slide block 52, the bed plate slide block 52 slides into the corresponding inner guide rail 57 from the cross outer guide rail 55 at the beginning, then the bed plate slide block 52 continuously slides along the inner guide rail 57, when the bed plate slide block 52 slides to the tail end of the inner guide rail 57, the bed plate slide block 52 continuously slides forwards against the swing plate 59, the inner guide rail 57 starts to slide in the cross outer guide rail 55, then the steel wire rope 56 is basically straightened when the inner guide rail 57 continuously slides to the limit position in the cross outer guide rail 55, then the steel wire rope 56 pulls the telescopic inner shaft 68 to axially move away from the cam 58, then the telescopic jacket 66 is driven by the thread fit of the telescopic inner shaft 68, the telescopic slide block 66 rotates around the cam 58, the energy of the cam 58 is recovered from the rotary lower swing shaft of the telescopic shaft 66, when the rotary cam 52 of the rotary slide block 59 returns to the original swing plate 52, the position of the lower spring 52, the rotary cam 59 returns to the original swing plate 52, the position of the rotary cam 59, the telescopic spring 52, the rotary cam 59 returns to the original slide block 52, the lower spring 52, and the rotary cam 52, the rotary cam 59 returns to the original slide block 52, the position of the rotary cam 59, and the rotary cam 59, the rotary cam 59 returns to the position of the rotary cam 59, the position of the rotary cam 52, and the lower spring 52, the rotary cam 59, the rotary cam 52, the bed plate returns to the position of the bed plate returns to the original slide block 59.

In the present invention, when the first handle 4 and the second handle 5 are set to be in the horizontal positions, as shown in fig. 32 (a), the first quarter bend 32 and the second quarter bend 33 are both in the horizontal positions, and the deforming wheel 31 is in the form of a flat wheel.

When the deformation wheel 31 needs to be deformed from a flat wheel shape to a round wheel shape, the third synchronous belt 17 is not installed on the third synchronous belt gear a 13; as shown in fig. 32 (c), when the worker swings the first handle 4, the first handle 4 rotates the first sliding gear 18 via the first shaft 11 and the first driving gear 15; the first sliding gear 18 drives the first synchronous belt 21 to work; the first timing belt 21 rotates the first timing belt gear B30; the first synchronous belt gear B30 drives the first right-angle bending plate 32 to rotate; as shown in fig. 32 (b), when the first quarter bend 32 is rotated to a position perpendicular to the second quarter bend 33, the deforming wheel 31 is deformed into a round wheel form; at this time, the worker stops swinging the first handle 4 to maintain the deforming wheel 31 in the circular wheel shape.

When the deformation wheel 31 is changed into a round wheel shape and then the bed sheet needs to be replaced by rotating, the worker installs the third synchronous belt 17 on the third synchronous belt gear a13 in a crossed manner; the same effect is achieved when the worker swings the second handle 5 or the first handle 4, and as shown in fig. 33 (a), the swing of the second handle 5 is taken as an example: on one hand, the second handle 5 drives the second sliding gear 24 to rotate through the second shaft 12 and the second driving gear 16; the second sliding gear 24 drives the second synchronous belt 22 to work; the second synchronous belt 22 drives a second synchronous belt gear B29 to rotate; the second synchronous belt gear B29 drives the second right-angle bent plate 33 to rotate; on the other hand, the second handle 5 drives the third timing belt gear A13 to rotate through the second shaft 12, the third timing belt gear B14 and the third timing belt 17; the rotation directions of the third synchronous belt gear A13 and the third synchronous belt gear B14 are opposite; as shown in fig. 33 (b), the third timing belt gear a13 rotates the first slide gear 18 via the first shaft 11 and the first drive gear 15; the first sliding gear 18 drives the first synchronous belt 21 to work; the first timing belt 21 rotates the first timing belt gear B30; the first timing belt gear B30 rotates the first quarter bend 32. Under the two aspects, the rotating directions of the first synchronous belt gear B30 and the second synchronous belt gear B29 are the same and synchronous, so that the deformation wheel 31 can still rotate under the condition that the deformation wheel 31 is kept in a round wheel shape, and the deformation wheel 31 can continuously stir the bed sheet; when the bed sheet is pulled out, the pulling direction of half of the deformation wheels 31 is the same as that of the bed sheet, and the friction between the deformation wheels 31 and the bed sheet belongs to rolling friction relatively; the other half of the transformation wheel 31 is opposite to the pulling direction of the sheet, and the friction between the transformation wheel 31 and the sheet belongs to sliding friction relatively; compared with the traditional sliding friction between the bed sheets, the design can reduce half of the resistance caused by the sliding friction, and is more favorable for replacing the bed sheets more quickly.

When the bed sheet is replaced, the worker unloads the third synchronous belt 17 from the third synchronous belt gear a13, swings the first handle 4 to rotate the first right-angle bending plate 32 to the horizontal position, and swings the second handle 5 to rotate the second right-angle bending plate 33 to the horizontal position; finally, the deforming wheel 31 is restored to the original flat wheel shape.

In conclusion, the bed board 50 slides in the main guide rail formed by the cross guide rail and the inner guide rail 57 through the bed board slide block 52, and the bed board slide block 52 slides out of the main guide rail and enters another bed position, so that the bed board 50 is replaced under the condition that the body of the patient is not moved, and secondary damage to the wound of the patient in the process of moving the patient is avoided; according to the bed sheet replacing device, the deformation wheel 31 is deformed from a flat wheel state to a round wheel state by swinging the first handle 4, the deformation wheel 31 is driven to rotate by swinging the second handle 5, and the bed sheet is replaced by the rotating deformation wheel 31, so that the purpose that the bed sheet can still be replaced under the condition that a patient is not required to get out of bed is achieved; the structure is simple, and the use effect is good.

Claims

1. The utility model provides a reduce operation table of patient secondary damage's interchangeable bed board which characterized in that: the novel bed comprises a bed plate, a first fixing plate, a bed plate sliding block, a cylindrical groove, a cylindrical support, a cross outer guide rail, a steel wire rope, an inner guide rail, a cam, a swing plate, a second fixing plate, a third spring, a fourth fixing plate, a C-shaped spring, a second ring sleeve, a telescopic outer sleeve, a fifth fixing plate, a telescopic inner shaft, a chamfer, a fourth spring, a first ring sleeve, a fifth guide block, a fifth spring, a sixth fixing plate, a ring sleeve groove, a telescopic inner shaft hole and a fifth guide groove, wherein the cylindrical groove is formed in the middle of the first fixing plate; one end of the cylindrical support is nested in the cylindrical groove, and the other end of the cylindrical support is provided with a cross outer guide rail;

the structures installed at any ends of the cross outer guide rails are the same; two third fixing plates are symmetrically arranged on two side surfaces of the cross-shaped guide rail at any end of the cross-shaped outer guide rail; a second fixing plate is arranged on the lower plate surface of the cross guide rail; one end of the inner guide rail is nested in the cross guide rail; the inner guide rail slides in the cross guide rail; chamfers are arranged on the end surfaces of the inner guide rails entering the cross guide rails; two fourth fixing plates are symmetrically arranged on two side surfaces of the inner guide rail; a third spring is arranged between the third fixing plate and the fourth fixing plate on the same side of the inner guide rail; the swinging plate is arranged on one end of the inner guide rail, which does not enter the cross guide rail, through a shaft; one end of the C-shaped spring is arranged on the swinging plate, and the other end of the C-shaped spring is arranged on the lower plate surface of the inner guide rail; the second ring sleeve is arranged on the lower plate surface of the inner guide rail through a sixth fixing plate; the inner circle surface of the second ring sleeve is provided with a ring sleeve groove; a first ring sleeve is arranged on the outer circular surface of the telescopic outer sleeve; the telescopic outer sleeve is arranged in the ring sleeve groove through a first ring sleeve; both ends of the telescopic outer sleeve penetrate through the second ring sleeve; the inner circle surface of the telescopic outer sleeve is provided with threads; one end of the telescopic outer sleeve is provided with a cam; the cam is matched with the swinging plate; the fourth spring is nested on the telescopic outer sleeve; one end of the fourth spring is arranged on the side surface of the cam, and the other end of the fourth spring is arranged on the side surface of the second ring sleeve; the fifth fixing plate is arranged on the lower plate surface of the inner guide rail; the fifth fixing plate is provided with a telescopic inner shaft hole; two fifth guide grooves are symmetrically formed in the outer circular surface of the telescopic inner shaft hole; two fifth guide blocks are symmetrically arranged on the outer circular surface of the telescopic inner shaft; the telescopic inner shaft is arranged in the telescopic inner shaft hole; the telescopic inner shaft slides in the fifth guide groove through the fifth guide block; a fifth spring is arranged between the fifth guide block and the groove surface of the fifth guide groove and is positioned in the fifth guide groove; the outer circle surface of one end of the telescopic inner shaft is provided with a thread; one end of the telescopic inner shaft with the screw thread penetrates through the telescopic inner shaft hole and is arranged in the telescopic outer sleeve in a screw thread matching mode; the other end of the telescopic inner shaft penetrates through the telescopic inner shaft hole; one end of the steel wire rope is connected to the second fixing plate, and the other end of the steel wire rope is connected to the end face of the telescopic inner shaft;

a bed plate sliding block is arranged in the middle of the lower plate surface of the bed plate; the bed board slides in a main guide rail formed by the cross guide rail and the inner guide rail through the bed board slide block;

the bed plate comprises a bed frame, a deformation mechanism, a first handle, a second handle, a shaft hole, a first guide groove, a bed support plate, a first shaft, a second shaft, a third synchronous belt gear A, a third synchronous belt gear B, a first driving gear, a second driving gear, a third synchronous belt, a first sliding gear, a first arc-shaped guide rail, a first synchronous belt gear A, a first synchronous belt, a second arc-shaped guide rail, a second sliding gear, a second synchronous belt gear A, a first synchronous belt gear C, a second spring and a second guide block, wherein the bed frame consists of a head plate, a tail plate, a first plate and a second plate; the headboard and the footboard are symmetrical; the first plate and the second plate are symmetrical; a plurality of groups of bed supporting plates are uniformly distributed in the bed frame; two ends of the bed supporting plate are respectively connected with the first plate and the second plate; the plate surfaces at the two ends of the bed supporting plate are respectively provided with a shaft hole; a plurality of groups of first guide grooves are symmetrically formed in the two side plate surfaces of the bed supporting plate respectively; a plurality of groups of first guide grooves are formed in one side face of the headboard and one side face of the footboard; the plate surfaces at the two ends of the headboard and the footboard are respectively provided with a shaft hole; the first guide grooves on the head plate and the tail plate respectively correspond to the first guide grooves on the corresponding bed supporting plates one by one; the shaft holes on the head plate and the tail plate are matched with the corresponding shaft holes on the bed supporting plate;

one end of the first shaft is provided with a first handle, and the other end of the first shaft is inserted into a corresponding shaft hole on the bed tail plate through one of two shaft holes on the bed head plate and a corresponding shaft hole on the bed supporting plate; the third synchronous belt gear A is arranged on the outer circular surface of the first shaft and is positioned between the first handle and the headboard; a plurality of first driving gears are arranged on the outer circular surface of the first shaft; each bed supporting plate corresponds to one first driving gear; the bed tail plate corresponds to a first driving gear;

one end of the second shaft is provided with a second handle, and the other end of the second shaft is inserted into a corresponding shaft hole on the bed tail plate through another shaft hole on the bed head plate and a corresponding shaft hole on the bed supporting plate; a third synchronous belt gear B is arranged on the outer circular surface of the second shaft and is positioned between the first handle and the headboard; a plurality of second driving gears are arranged on the outer circular surface of the second shaft; each bed supporting plate corresponds to one second driving gear; the bed tail plate corresponds to a second driving gear;

the third synchronous belt gear A and the third synchronous belt gear B are not in the same plane any more; the third synchronous belt is respectively arranged on the outer circular surfaces of the third synchronous belt gear A and the third synchronous belt gear B in a crossed mode;

the structures between the head plate and the bed supporting plate, between the tail plate and the bed supporting plate or between the two bed supporting plates are the same as the structures of the bed supporting plates and the bed supporting plates; for the structure between the headboard and the bed supporting plate and the structure between the headboard and the bed supporting plate, a deformation mechanism is arranged between each pair of first guide grooves between the headboard and the bed supporting plate; the first arc-shaped guide rail is arranged on the board surface of the headboard close to the first shaft; the second guide block is arranged in the first arc-shaped guide rail; the second spring is arranged in the first arc-shaped guide rail; one end of the second spring is arranged on the second guide block, and the other end of the second spring is arranged on the wall surface of the first arc-shaped guide rail; the first sliding gear is arranged on the second guide block through a shaft; the first sliding gear slides in the first arc-shaped guide rail through the second guide block; the first sliding gears are meshed with the corresponding first driving gears; the first synchronous belt gear A is arranged on the board surface of the headboard close to the first shaft through a shaft; the first synchronous belt gear C is arranged on the board surface of the headboard close to the second shaft through a shaft;

the second arc-shaped guide rail is arranged on the surface of the headboard close to the second shaft; the second guide block is arranged in the second arc-shaped guide rail; the second spring is arranged in the second arc-shaped guide rail; one end of the second spring is arranged on the second guide block, and the other end of the second spring is arranged on the wall surface of the second arc-shaped guide rail; the second sliding gear is arranged on the second guide block through a shaft; the second sliding gear slides in the second arc-shaped guide rail through the second guide block; the second sliding gear is meshed with the corresponding second driving gear; the second synchronous belt gear A is arranged on the surface of the headboard close to the second shaft through a shaft; the second synchronous belt gear C is arranged on the surface of the headboard close to the first shaft through a shaft;

the deformation mechanism comprises a first spring, a first guide block, a third shaft, a second synchronous belt gear B, a first synchronous belt gear B, a deformation wheel, a first right-angle bent plate and a second right-angle bent plate, wherein the first guide block is arranged at each of two ends of the third shaft; the third shaft slides in the corresponding first guide grooves through the two first guide blocks; a first spring is arranged between the first guide block and the groove surface of the first guide groove and is positioned in the first guide groove; the second synchronous belt gear B and the first synchronous belt gear B are both arranged on the outer circular surface of the third shaft; the second synchronous belt gear B and the second synchronous belt gear A are positioned on the same plane; the first sliding gear, the first synchronous belt gear B, the first synchronous belt gear A and the first synchronous belt gear C are positioned on the same plane; the second sliding gear, the second synchronous belt gear B, the second synchronous belt gear A and the second synchronous belt gear C are positioned on the same plane; the first right-angle bent plate is formed by bending for multiple times, and the second right-angle bent plate is formed by bending for multiple times; the first right-angle bent plate is nested on the third shaft through a central hole, and one end of the first right-angle bent plate is connected with the first synchronous belt gear B; the second right-angle bent plate is arranged on the third shaft through a central hole; the first right-angle bent plate and the second right-angle bent plate are matched in a staggered mode; the deformation wheel is nested on the third shaft; the inner circle surface of the deformation wheel is contacted with the first right-angle bent plate and the second right-angle bent plate;

the first synchronous belt is meshed with the plurality of first synchronous belt gears B in a wavy mode and wraps the first sliding gear, the first synchronous belt gear A, the first synchronous belt gear C and the first synchronous belt gear B close to the outermost end of the first synchronous belt gear C;

2. The operating table with the replaceable bed board for reducing the secondary injury of the patient as claimed in claim 1, wherein: when the inner guide rail does not slide in the cross guide rail, the steel wire rope is in a loose state.

3. The operating table with the replaceable bed board for reducing the secondary injury of the patient as claimed in claim 1, wherein: it also includes bed guard bar; the upper end surfaces of the headboard and the footboard are respectively provided with a bed guardrail.

4. The operating table with the replaceable bed board for reducing the secondary injury of the patient as claimed in claim 1, wherein: the deformation wheel has elasticity.

5. The operating table with the replaceable bed board for reducing the secondary injury of the patient as claimed in claim 1, wherein: the first arc-shaped guide rail and the second arc-shaped guide rail have the same structure.