CN109009698B - Shovel stretcher used in medical field - Google Patents

Shovel stretcher used in medical field Download PDF

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Publication number
CN109009698B
CN109009698B CN201810765461.6A CN201810765461A CN109009698B CN 109009698 B CN109009698 B CN 109009698B CN 201810765461 A CN201810765461 A CN 201810765461A CN 109009698 B CN109009698 B CN 109009698B
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CN
China
Prior art keywords
shovel
stretcher
driving shaft
ring
mounting
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Application number
CN201810765461.6A
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Chinese (zh)
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CN109009698A (en
Inventor
孙琳琳
肖莹
张丽
蔡智聪
刘桂英
刘红蕾
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First Hospital Jinlin University
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First Hospital Jinlin University
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Priority to CN201810765461.6A priority Critical patent/CN109009698B/en
Publication of CN109009698A publication Critical patent/CN109009698A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00Stretchers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00Stretchers
    • A61G1/04Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2200/00Information related to the kind of patient or his position
    • A61G2200/30Specific positions of the patient
    • A61G2200/32Specific positions of the patient lying

Abstract

The invention belongs to the technical field of stretchers, and particularly relates to a shovel type stretcher used in the medical field, which comprises a stretcher handle, shovel pieces, an installation frame, an adjusting rod, a driving shaft, a one-way supporting mechanism and a driving gear, wherein when the stretcher designed by the invention is used, a patient is firstly placed in the middle of the installation frame, then the adjusting rod is adjusted to rotate anticlockwise, the adjusting rod can drive the driving shaft to rotate, the driving shaft rotates to enable the four shovel pieces to be combined, and at the moment, the stretcher can be lifted; after the use is finished, the medical staff adjusts the adjusting rod to enable the shovel blade to move towards the outer side of the mounting rack along the corresponding arc-shaped guide groove formed in the mounting rack; finally, the original position is restored; the next time the utility model can be used continuously; the fixing frame of the shovel stretcher is integrated, so that the stability of the shovel stretcher is improved; the problem that the traditional folding shovel stretcher is easy to damage and possibly causes secondary damage to a patient is avoided.

Description

Shovel stretcher used in medical field
Technical Field
The invention belongs to the technical field of stretchers, and particularly relates to a shovel type stretcher used in the medical field.
Background
Along with the development of science and technology, people's life is increasingly prosperous and prosperous, and medical equipment is also continuously improving, and medical equipment discovers its shortcoming and shortcoming in the use, then improves and innovates it, accords with people's demand more, uses convenient and fast more.
The stretcher is one of common equipment in medical equipment, and when a patient can not walk by oneself, suffers from internal serious injury, fracture and the like and can not shake or move violently, the patient often needs to be moved by the stretcher, and the shovel type stretcher consists of a left shovel sheet and a right shovel sheet. Different from a common stretcher, the stretcher can be used for inserting two shovel pieces below the body of a patient respectively and lifting the two shovel pieces after buckling. The secondary injury to the patient in the carrying process is reduced to the maximum extent. However, the common shovel stretcher is composed of a left shovel sheet and a right shovel sheet, in the using process, the pressure born by the two shovel sheets is small, and the frame of the shovel stretcher is generally of a folding type and is easy to damage, and once damaged, the frame may cause secondary damage to a patient; therefore, it is very necessary to design a firmer shovel stretcher.
The invention designs a shovel stretcher used in the medical field to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a shovel stretcher used in the medical field, which is realized by adopting the following technical scheme.
The utility model provides a shovel stretcher that medical field used which characterized in that: the stretcher comprises a stretcher handle, a shovel blade, an installation frame, an adjusting rod, a driving shaft, a one-way supporting mechanism, a driving gear, a first support, a connecting rotating shaft, a fixed support, a transmission gear, an arc-shaped guide groove, an installation groove, a connecting rod and a square block, wherein the installation frame is shaped like a Chinese character hui, two groups of communicated arc-shaped guide grooves are symmetrically formed in two side surfaces of the installation frame, and two arc-shaped guide grooves in the same group are uniformly distributed on the installation frame; a through mounting groove is formed in the side face of one end of the mounting frame; the four stretcher handles are symmetrically arranged at two ends of the mounting frame in a pairwise group, and the two stretcher handles in the same group are mutually symmetrical on the mounting frame.
The mounting structures on the two sides of the mounting rack are completely identical and are mutually symmetrical, and three square blocks are uniformly mounted on the driving shaft for any one of the mounting structures on the two sides of the mounting rack; the driving shaft is arranged on the side surface of the mounting frame through three one-way supporting mechanisms, and three square blocks arranged on the driving shaft are matched with the three one-way supporting mechanisms; the two driving gears are symmetrically arranged at two ends of the driving shaft; the shovel blade is arc-shaped, and teeth are arranged on the outer arc surface of the shovel blade; the two shovel pieces are respectively installed on the installation rack through matching with the corresponding arc-shaped guide grooves on the installation rack; the two shovel blades are respectively meshed with the two driving gears through teeth on the shovel blades; two connecting rods are arranged between the two shovel sheets; two ends of the two connecting rods are respectively arranged on two opposite side surfaces of the two shovel pieces; one of the two connecting rods is positioned on the inner side of the mounting rack, and the other connecting rod is positioned on the outer side of the mounting rack; one end of the transmission gear is a bevel gear end, the other end of the transmission gear is a smooth end, and the transmission gear is arranged on the driving shaft and is close to the mounting groove formed in the mounting rack; the smooth end of the transmission gear is arranged on the mounting rack through a fixed support; the adjusting rod is arranged at one end of the driving shaft and is close to the transmission gear.
Both ends of the connecting rotating shaft are provided with bevel teeth; the connecting rotating shaft is arranged in an installation groove formed in the installation frame through a first support; two ends of the connecting rotating shaft are respectively meshed with the conical tooth ends of the corresponding transmission gears through the conical teeth on the connecting rotating shaft.
The unidirectional support mechanism comprises a square groove, a unidirectional inner ring, a unidirectional outer ring and a second support, wherein the unidirectional outer ring and the unidirectional inner ring form a unidirectional ring which is arranged on the mounting frame through the second support; a square groove is formed on the unidirectional inner ring; the square groove on the one-way inner ring is matched with the square block arranged on the driving shaft.
As a further improvement of the technology, the one-way outer ring is fixedly arranged on the second support in a welding mode.
As a further improvement of the technology, the square block is square, and the width of the square block is equal to the width of the square groove formed in the unidirectional inner ring.
As a further improvement of the technology, the diameter value of the inscribed circle of the square groove formed in the unidirectional inner ring is equal to the diameter value of the driving shaft.
As a further improvement of the present technology, the transmission gear is mounted on the fixed support through a bearing.
In the invention, four stretcher handles are symmetrically arranged at two ends of a mounting rack in a pairwise manner; the stretcher handle has the function that medical staff can drive the stretcher through the stretcher handle.
In the invention, two ends of the connecting rotating shaft are provided with bevel teeth; the connecting rotating shaft is arranged in an installation groove formed in the installation frame through a first support; two ends of the connecting rotating shaft are respectively meshed with the bevel gear ends on the corresponding transmission gears through the bevel gears on the connecting rotating shaft; when one of the two transmission gears rotates, the transmission gear can drive the connecting rotating shaft to rotate; the connecting rotating shaft rotates to drive the other transmission gear to rotate; the other transmission gear rotates to drive the corresponding driving shaft to rotate.
In the invention, three square blocks are uniformly arranged on the driving shaft; the driving shaft is arranged on the side surface of the mounting frame through three one-way supporting mechanisms, and three square blocks arranged on the driving shaft are matched with the three one-way supporting mechanisms; the two driving gears are symmetrically arranged at two ends of the driving shaft; the two shovel pieces are respectively installed on the installation rack through matching with the corresponding arc-shaped guide grooves on the installation rack; the two shovel blades are respectively meshed with the two driving gears through teeth on the shovel blades; two connecting rods are arranged between the two shovel sheets; two ends of the two connecting rods are respectively arranged on two opposite side surfaces of the two shovel pieces; one of the two connecting rods is positioned on the inner side of the mounting rack, and the other connecting rod is positioned on the outer side of the mounting rack; one end of the transmission gear is a bevel gear end, the other end of the transmission gear is a smooth end, and the transmission gear is arranged on the driving shaft and is close to the mounting groove formed in the mounting rack; the smooth end of the transmission gear is arranged on the mounting rack through a fixed support; the adjusting rod is arranged at one end of the driving shaft and is close to the transmission gear; the unidirectional outer ring and the unidirectional inner ring form a unidirectional ring, and the unidirectional ring is arranged on the mounting frame through a second support; a square groove is formed on the unidirectional inner ring; the square groove on the one-way inner ring is matched with the square block arranged on the driving shaft; when the square groove on the one-way inner ring is matched with the square block arranged on the driving shaft, the medical staff adjusts the adjusting rod to rotate anticlockwise, the adjusting rod can drive the driving shaft to rotate, and the driving shaft rotates to drive the two corresponding driving gears to rotate; the two driving gears rotate to enable the two corresponding shovel blades to move towards the inner side of the mounting rack along the corresponding arc-shaped guide grooves formed in the mounting rack; when the two shovel pieces move to the limit state, the four shovel pieces are just combined; in this state, the one-way outer ring plays a role in limiting the corresponding one-way inner ring, and the one-way inner ring is prevented from rotating reversely; the unidirectional inner ring cannot rotate reversely, namely the driving shaft cannot rotate reversely; the driving shaft can not rotate reversely, namely the driving gear can not rotate reversely, namely the shovel blade can not move reversely when being extruded; the patient is prevented from falling off due to the reverse movement of the shovel blade, and the illness condition of the patient is aggravated; after the use is finished, the medical staff pulls the adjusting rod to enable the adjusting rod to drive the driving shaft to move; the driving shaft moves to drive the square block arranged on the driving shaft to move, and finally the square block arranged on the driving shaft is separated from the square groove formed on the corresponding driving inner ring, and the adjusting rod is rotated reversely to drive the driving shaft to rotate reversely; the driving shaft rotates reversely to drive the two corresponding driving gears to rotate reversely; the two driving gears rotate reversely to enable the two corresponding shovel blades to move towards the outer side of the mounting rack along the corresponding arc-shaped guide grooves formed in the mounting rack; and finally, the original position is restored.
Compared with the traditional stretcher technology, the shovel stretcher designed by the invention inserts the two shovel pieces below the body of the patient and then lifts the two shovel pieces. The secondary damage to the patient in the carrying process is reduced to the maximum extent; meanwhile, the fixed frame of the shovel stretcher is integrated, so that the stability of the shovel stretcher is improved; the problem that the traditional folding shovel stretcher is easy to damage and possibly causes secondary damage to a patient is avoided.
Drawings
Fig. 1 is an external view of an entire part.
Fig. 2 is a schematic view of the overall component distribution.
Fig. 3 is a schematic plan view of the overall component distribution.
Fig. 4 is a schematic view of a drive gear arrangement.
Fig. 5 is a schematic view of the connection shaft installation.
Fig. 6 is a schematic view of the mounting frame structure.
Fig. 7 is a schematic view of the arc-shaped guide groove distribution.
Fig. 8 is a schematic view of blade installation.
FIG. 9 is a schematic view of the transmission gear and the connecting shaft.
FIG. 10 is a schematic view of the transmission gear in cooperation with the stationary support.
Fig. 11 is a schematic view of the connecting rod installation.
FIG. 12 is a schematic view of the engagement of the blade with the drive gear.
Fig. 13 is a schematic structural view of the one-way support mechanism.
Number designation in the figures: 1. a stretcher handle; 2. a shovel blade; 3. a mounting frame; 4. adjusting a rod; 5. a drive shaft; 6. a one-way support mechanism; 7. a drive gear; 8. a first support; 9. connecting the rotating shaft; 10. fixing and supporting; 11. a transmission gear; 12. an arc-shaped guide groove; 13. mounting grooves; 14. a connecting rod; 15. a square block; 16. a square groove; 17. a unidirectional inner ring; 18. a unidirectional outer ring; 19. and a second support.
Detailed Description
As shown in fig. 1 and 2, the stretcher comprises a stretcher handle 1, a shovel blade 2, an installation frame 3, an adjusting rod 4, a driving shaft 5, a one-way supporting mechanism 6, a driving gear 7, a first support 8, a connecting rotating shaft 9, a fixed support 10, a transmission gear 11, an arc-shaped guide groove 12, an installation groove 13, a connecting rod 14 and a square block 15, wherein the installation frame 3 is shaped like a Chinese character 'hui', as shown in fig. 6, two groups of through arc-shaped guide grooves 12 are symmetrically formed in two side surfaces of the installation frame 3, and the two arc-shaped guide grooves 12 in the same group are uniformly distributed on the installation frame 3; a through mounting groove 13 is formed in the side surface of one end of the mounting rack 3; the four stretcher handles 1 are symmetrically arranged at two ends of the mounting frame 3 in a group of two stretcher handles 1, and the two stretcher handles 1 in the same group are mutually symmetrical on the mounting frame 3.
As shown in fig. 3 and 4, the mounting structures on both sides of the mounting bracket 3 are identical and symmetrical to each other, and as shown in fig. 12, three square blocks 15 are uniformly mounted on the driving shaft 5 for any one of the mounting structures on both sides of the mounting bracket 3; as shown in fig. 4, the driving shaft 5 is mounted on the side of the mounting frame 3 through three one-way supporting mechanisms 6, and as shown in fig. 5, three square blocks 15 mounted on the driving shaft 5 are matched with the three one-way supporting mechanisms 6; as shown in fig. 12, two drive gears 7 are symmetrically installed at both ends of the drive shaft 5; as shown in fig. 11, the blade 2 is arc-shaped, and teeth are arranged on the outer arc surface of the blade 2; as shown in fig. 8, two shovel blades 2 are respectively installed on the mounting frame 3 through the cooperation with the corresponding arc-shaped guide grooves 12 on the mounting frame 3; as shown in fig. 12, the two blades 2 are respectively engaged with the two drive gears 7 by teeth thereon; as shown in fig. 11, two connecting rods 14 are installed between the two shovel blades 2; two ends of the two connecting rods 14 are respectively arranged on two opposite side surfaces of the two shovel pieces 2; as shown in fig. 1, one of the two connecting rods 14 is located at the inner side of the mounting frame 3, and the other connecting rod 14 is located at the outer side of the mounting frame 3; as shown in fig. 9, one end of the transmission gear 11 is a conical tooth end, and the other end is a smooth end, as shown in fig. 5, the transmission gear 11 is installed on the driving shaft 5 and is close to the installation groove 13 opened on the installation frame 3; as shown in fig. 10, the smooth end of the transmission gear 11 is mounted on the mounting frame 3 through the fixed support 10; the adjusting lever 4 is installed at one end of the driving shaft 5 and is adjacent to the transmission gear 11.
As shown in fig. 9, both ends of the connecting rotating shaft 9 are provided with bevel teeth; as shown in fig. 2, the connecting shaft 9 is mounted in a mounting groove 13 formed in the mounting frame 3 through the first support 8; as shown in fig. 9, two ends of the connecting rotating shaft 9 are respectively engaged with the conical teeth ends of the corresponding transmission gears 11 through the conical teeth thereon.
As shown in fig. 13, the unidirectional supporting mechanism 6 comprises a square groove 16, a unidirectional inner ring 17, a unidirectional outer ring 18 and a second support 19, wherein as shown in fig. 13, the unidirectional outer ring 18 and the unidirectional inner ring 17 form a unidirectional ring, and the unidirectional ring is mounted on the mounting frame 3 through the second support 19; a square groove 16 is formed on the unidirectional inner ring 17; the unidirectional inner ring 17 is arranged on the inner side of the unidirectional outer ring 18; as shown in fig. 5, the square groove 16 of the one-way inner ring 17 is engaged with the square block 15 mounted on the drive shaft 5.
The unidirectional outer ring 18 is fixedly mounted on the second support 19 by means of welding.
The square block 15 is square, and the width of the square block 15 is equal to the width of the square groove 16 formed in the one-way inner ring 17.
The diameter value of the inscribed circle of the square groove 16 opened on the one-way inner ring 17 is equal to the diameter value of the driving shaft 5.
The transmission gear 11 is mounted on the fixed support 10 through a bearing.
In summary, the following steps:
the shovel stretcher designed by the invention is characterized in that the two shovel pieces 2 are inserted under the body of a patient and then lifted. The secondary damage to the patient in the carrying process is reduced to the maximum extent; meanwhile, the fixed frame of the shovel stretcher is integrated, so that the stability of the shovel stretcher is improved; the problem that the traditional folding shovel stretcher is easy to damage and possibly causes secondary damage to a patient is avoided.
In the invention, four stretcher handles 1 are symmetrically arranged at two ends of a mounting rack 3 in a pairwise and one group; the stretcher handle 1 has the function that medical staff can drive the stretcher through the stretcher handle 1.
In the invention, two ends of the connecting rotating shaft 9 are provided with bevel teeth; the connecting rotating shaft 9 is arranged in a mounting groove 13 formed in the mounting rack 3 through a first support 8; two ends of the connecting rotating shaft 9 are respectively meshed with the corresponding conical tooth ends on the transmission gear 11 through conical teeth on the connecting rotating shaft; when one transmission gear 11 of the two transmission gears 11 rotates, the transmission gear 11 can drive the connecting rotating shaft 9 to rotate; the connecting rotating shaft 9 rotates to drive the other transmission gear 11 to rotate; the other transmission gear 11 rotates to drive the corresponding driving shaft 5 to rotate.
In the invention, three square blocks 15 are uniformly arranged on the driving shaft 5; the driving shaft 5 is arranged on the side surface of the mounting frame 3 through three one-way supporting mechanisms 6, and three square blocks 15 arranged on the driving shaft 5 are matched with the three one-way supporting mechanisms 6; two driving gears 7 are symmetrically installed at both ends of the driving shaft 5; the two shovel pieces 2 are respectively arranged on the mounting rack 3 through the matching of the corresponding arc-shaped guide grooves 12 on the mounting rack 3; the two shovel blades 2 are respectively meshed with the two driving gears 7 through teeth on the shovel blades; two connecting rods 14 are arranged between the two shovel sheets 2; two ends of the two connecting rods 14 are respectively arranged on two opposite side surfaces of the two shovel pieces 2; one connecting rod 14 of the two connecting rods 14 is positioned on the inner side of the mounting frame 3, and the other connecting rod 14 is positioned on the outer side of the mounting frame 3; one end of the transmission gear 11 is a conical tooth end, the other end of the transmission gear 11 is a smooth end, and the transmission gear 11 is installed on the driving shaft 5 and is close to an installation groove 13 formed in the installation frame 3; the smooth end of the transmission gear 11 is arranged on the mounting rack 3 through a fixed support 10; the adjusting rod 4 is arranged at one end of the driving shaft 5 and is close to the transmission gear 11; the unidirectional outer ring 18 and the unidirectional inner ring 17 form a unidirectional ring, and the unidirectional ring is arranged on the mounting frame 3 through a second support 19; a square groove 16 is formed on the unidirectional inner ring 17; a square groove 16 on the one-way inner ring 17 is matched with a square block 15 arranged on the driving shaft 5; when the square groove 16 on the one-way inner ring 17 is matched with the square block 15 arranged on the driving shaft 5, the medical staff adjusts the adjusting rod 4 to rotate anticlockwise, the adjusting rod 4 can drive the driving shaft 5 to rotate, and the driving shaft 5 rotates to drive the two corresponding driving gears 7 to rotate; the rotation of the two driving gears 7 can make the corresponding two shovel blades 2 move towards the inner side of the mounting frame 3 along the corresponding arc-shaped guide grooves 12 formed on the mounting frame 3; when the two shovel blades 2 move to the limit state, the four shovel blades 2 are just combined; in this state, the one-way outer ring 18 has a limiting function on the corresponding one-way inner ring 17 to prevent the one-way inner ring 17 from rotating reversely; the one-way inner ring 17 does not rotate reversely, that is, the drive shaft 5 does not rotate reversely; the driving shaft 5 cannot rotate reversely, namely the driving gear 7 cannot rotate reversely, namely the shovel blade 2 cannot move reversely when the shovel blade 2 is extruded; the patient is prevented from falling off due to the reverse movement of the shovel blade 2, and the illness condition of the patient is aggravated; after the use is finished, the medical staff pulls the adjusting rod 4 to enable the adjusting rod 4 to drive the driving shaft 5 to move; the driving shaft 5 moves to drive the square block 15 arranged on the driving shaft to move, finally the square block 15 arranged on the driving shaft 5 is separated from the square groove 16 formed on the corresponding driving inner ring, and the adjusting rod 4 is rotated reversely at the moment so that the adjusting rod 4 drives the driving shaft 5 to rotate reversely; the driving shaft 5 rotates reversely to drive the two corresponding driving gears 7 to rotate reversely; the two driving gears 7 rotate reversely, so that the two corresponding shovel blades 2 move towards the outer side of the mounting frame 3 along the corresponding arc-shaped guide grooves 12 formed in the mounting frame 3; and finally, the original position is restored.
The specific implementation mode is as follows: when the stretcher is used, a patient is placed in the middle of the mounting frame 3, then the adjusting rod 4 rotates anticlockwise, the adjusting rod 4 can drive the driving shaft 5 to rotate, and the driving shaft 5 rotates to drive the two corresponding driving gears 7 to rotate; the rotation of the two driving gears 7 can make the corresponding two shovel blades 2 move towards the inner side of the mounting frame 3 along the corresponding arc-shaped guide grooves 12 formed on the mounting frame 3; when the two shovel blades 2 move to the limit state, the four shovel blades 2 are just combined; at this time, the stretcher can be lifted; after the use is finished, the medical staff pulls the adjusting rod 4 to enable the adjusting rod 4 to drive the driving shaft 5 to move; the driving shaft 5 moves to drive the square block 15 arranged on the driving shaft to move, finally the square block 15 arranged on the driving shaft 5 is separated from the square groove 16 formed on the corresponding driving inner ring, and the adjusting rod 4 is rotated reversely at the moment so that the adjusting rod 4 drives the driving shaft 5 to rotate reversely; the driving shaft 5 rotates reversely to drive the two corresponding driving gears 7 to rotate reversely; the two driving gears 7 rotate reversely, so that the two corresponding shovel blades 2 move towards the outer side of the mounting frame 3 along the corresponding arc-shaped guide grooves 12 formed in the mounting frame 3; finally, the original position is restored; the next time the utility model can be used continuously.

Claims (5)

1. The utility model provides a shovel stretcher that medical field used which characterized in that: the stretcher comprises a stretcher handle, a shovel blade, an installation frame, an adjusting rod, a driving shaft, a one-way supporting mechanism, a driving gear, a first support, a connecting rotating shaft, a fixed support, a transmission gear, an arc-shaped guide groove, an installation groove, a connecting rod and a square block, wherein the installation frame is shaped like a Chinese character hui, two groups of communicated arc-shaped guide grooves are symmetrically formed in two side surfaces of the installation frame, and two arc-shaped guide grooves in the same group are uniformly distributed on the installation frame; a through mounting groove is formed in the side face of one end of the mounting frame; the four stretcher handles are symmetrically arranged at two ends of the mounting frame in a group of two stretcher handles, and the two stretcher handles in the same group are mutually symmetrical on the mounting frame;
the mounting structures on the two sides of the mounting rack are completely identical and are mutually symmetrical, and three square blocks are uniformly mounted on the driving shaft for any one of the mounting structures on the two sides of the mounting rack; the driving shaft is arranged on the side surface of the mounting frame through three one-way supporting mechanisms, and three square blocks arranged on the driving shaft are matched with the three one-way supporting mechanisms; the two driving gears are symmetrically arranged at two ends of the driving shaft; the shovel blade is arc-shaped, and teeth are arranged on the outer arc surface of the shovel blade; the two shovel pieces are respectively installed on the installation rack through matching with the corresponding arc-shaped guide grooves on the installation rack; the two shovel blades are respectively meshed with the two driving gears through teeth on the shovel blades; two connecting rods are arranged between the two shovel sheets; two ends of the two connecting rods are respectively arranged on two opposite side surfaces of the two shovel pieces; one of the two connecting rods is positioned on the inner side of the mounting rack, and the other connecting rod is positioned on the outer side of the mounting rack; one end of the transmission gear is a bevel gear end, the other end of the transmission gear is a smooth end, and the transmission gear is arranged on the driving shaft and is close to the mounting groove formed in the mounting rack; the smooth end of the transmission gear is arranged on the mounting rack through a fixed support; the adjusting rod is arranged at one end of the driving shaft and is close to the transmission gear;
both ends of the connecting rotating shaft are provided with bevel teeth; the connecting rotating shaft is arranged in an installation groove formed in the installation frame through a first support; two ends of the connecting rotating shaft are respectively meshed with the bevel gear ends on the corresponding transmission gears through the bevel gears on the connecting rotating shaft;
the unidirectional support mechanism comprises a square groove, a unidirectional inner ring, a unidirectional outer ring and a second support, wherein the unidirectional outer ring and the unidirectional inner ring form a unidirectional ring which is arranged on the mounting frame through the second support; a square groove is formed on the unidirectional inner ring; the square groove on the one-way inner ring is matched with the square block arranged on the driving shaft.
2. The shovel stretcher for use in the medical field according to claim 1, characterized in that: the one-way outer ring is fixedly arranged on the second support in a welding mode.
3. The shovel stretcher for use in the medical field according to claim 1, characterized in that: the square block is square, and the width of the square block is equal to the width of the square groove formed in the one-way inner ring.
4. The shovel stretcher for use in the medical field according to claim 1, characterized in that: the diameter value of the inscribed circle of the square groove formed in the one-way inner ring is equal to the diameter value of the driving shaft.
5. The shovel stretcher for use in the medical field according to claim 1, characterized in that: the transmission gear is arranged on the fixed support through a bearing.
CN201810765461.6A 2018-07-12 2018-07-12 Shovel stretcher used in medical field Active CN109009698B (en)

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Application Number Priority Date Filing Date Title
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CN109009698B true CN109009698B (en) 2020-03-17

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CN108245326A (en) * 2018-03-28 2018-07-06 西华大学 A kind of novel and multifunctional stretcher and rescue method

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Publication number Priority date Publication date Assignee Title
US5181289A (en) * 1991-03-15 1993-01-26 Kenzou Kassai Bed apparatus and rehabilitation attachment
CN203539558U (en) * 2013-10-25 2014-04-16 江苏日新医疗设备有限公司 Bucket type telescopic stretcher
CN203693915U (en) * 2014-01-24 2014-07-09 河南科技大学第一附属医院 Medical foldable shovel type stretcher
CN105342787A (en) * 2015-11-03 2016-02-24 朱远湖 Human body picking-and-placing and carrying device
CN105559982A (en) * 2015-12-07 2016-05-11 杨博文 Intelligent mechanical transfer device for operation patients
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Inventor after: Sun Linlin

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