CN109009704B - Folding manipulator used in medical field - Google Patents
Folding manipulator used in medical field Download PDFInfo
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- CN109009704B CN109009704B CN201810763920.7A CN201810763920A CN109009704B CN 109009704 B CN109009704 B CN 109009704B CN 201810763920 A CN201810763920 A CN 201810763920A CN 109009704 B CN109009704 B CN 109009704B
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- Prior art keywords
- rod
- plate
- trigger
- folding
- block
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/02—Stretchers with wheels
- A61G1/0206—Stretchers with wheels characterised by the number of supporting wheels if stretcher is extended
- A61G1/0218—3 pairs having wheels within a pair on the same position in longitudinal direction, e.g. on the same axis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/013—Stretchers foldable or collapsible
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/02—Stretchers with wheels
- A61G1/0237—Stretchers with wheels having at least one swivelling wheel, e.g. castors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pivots And Pivotal Connections (AREA)
- Handcart (AREA)
Abstract
The invention belongs to the technical field of medical push beds, and particularly relates to a folding push bed used in the medical field, which comprises a baffle plate, a bed plate, a backup plate, a mounting plate, folding supporting mechanisms and a pneumatic rod, wherein the two folding supporting mechanisms are symmetrically mounted on two sides of the bed plate; the two baffles are respectively arranged at the upper sides of the two folding supporting mechanisms; the mounting plate is arranged at one end of each of the two folding supporting mechanisms and is close to the backup plate; the folding trolley of the medical stretcher designed by the invention realizes the folding function of the walking wheels and the bracket of the trolley through the transmission of the gear and the rack; when the cart is moved to the ground from the ambulance, the walking wheels and the bracket of the cart can be sequentially restored under the action of the plate spring; the cart is more convenient in the using process.
Description
Technical Field
The invention belongs to the technical field of medical push beds, and particularly relates to a folding push bed used in the medical field.
Background
In the treatment places such as hospitals and the like, medical cots are often used; the medical push bed is applied to various places such as rescue, first aid, treatment and the like; the medical push bed has different requirements for different patients; from operating table to ward, ward to ambulance, ambulance to operating room; when a patient with critical illness, large body weight and difficult illness state has great movement, a medical push bed which can be sent to an operating room from home to an ambulance is needed; the patient can move and transfer conveniently; therefore, it is necessary to design a medical bed which is convenient for the patient to move and transfer and has small vibration.
The invention designs a folding manipulator 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 folding manipulator used in the medical field, which is realized by adopting the following technical scheme.
The utility model provides a folding bed pusher that medical field used which characterized in that: the folding bed comprises a baffle plate, a bed plate, a backup plate, an installation plate, a folding supporting mechanism and a pneumatic rod, wherein the backup plate is installed at one end of the bed plate through a revolute pair; the two folding supporting mechanisms are symmetrically arranged on two sides of the bed plate; the two baffles are respectively arranged at the upper sides of the two folding supporting mechanisms; the mounting plate is arranged at one end of each of the two folding supporting mechanisms and is close to the backup plate; one end of the pneumatic rod is arranged on the upper side of the mounting plate, and the other end of the pneumatic rod is arranged on the lower side of the backup plate through a revolute pair.
The folding support mechanism comprises a first universal wheel, a first support rod, a first folding rod, a second universal wheel, a third folding rod, a plate spring, a shield plate, a first limiting rod, a support plate, a second support rod, a fourth folding rod, a first rack, a support mounting plate, a second rack, a fixed shaft, a trigger gear, a mounting groove, a first guide groove, a second guide groove, a first avoidance groove, a shaft hole, a first gear, a trigger triangular block, a trigger plate, a gear shaft, a second gear, a second avoidance groove, a hinge block, a trigger hole, a rotating support shaft, a guide rail shell, a drive plate, a drive rod, a return spring, a transmission block, a limiting block, a connecting rotating shaft, a square hole, a square groove, a sliding square groove, a guide groove, a square guide hole, a first trigger rod, a trigger square block, a trigger guide block, a return spring, a second limiting rod, a first spring, a second trigger rod, a third universal, The spring mounting device comprises a second spring, a first support lug, a square notch, a second support lug, a connecting shaft, a mounting square groove, a spring mounting block, a guide hole and a spring mounting ring, wherein one end of a support plate is provided with a mounting groove; a first guide groove is formed in one side of the mounting groove, and a second guide groove is formed in the other side of the mounting groove; the upper side face and the lower side face of one end of the supporting plate, which is provided with the mounting groove, are provided with a first run-through avoidance groove, and the first avoidance groove is communicated with the second guide groove; two symmetrical shaft holes are formed in the two sides of the first avoidance groove; the other end of the supporting plate is provided with a guide groove; a sliding square groove is formed on the lower side surface of one end of the guide groove; a square guide hole is formed on the lower side surface of the other end of the guide groove; the supporting plate is arranged on the side surface of the bed plate.
The supporting mounting plate is arranged at one end of the supporting plate and is close to the backup plate; the lower end of the fixed shaft is provided with a round hole, and the fixed shaft is arranged on the support mounting plate; the first universal wheel is arranged at the lower side of the fixed shaft, and a rotating shaft of the first universal wheel is arranged in a circular hole in the fixed shaft through the matching of the guide block and the guide groove; the trigger gear is arranged on the fixed shaft and is positioned on the upper side of the supporting and mounting plate; the second rack is arranged on the supporting plate through a first guide groove formed in the supporting plate and meshed with the trigger gear; the gear shaft is arranged in the mounting groove formed on the supporting plate; the second gear is arranged at the upper end of the gear shaft; the second gear is meshed with the second rack; the first gear is arranged at the lower end of the gear shaft; a second run-through avoidance groove is formed in the upper side face and the lower side face of the first rack; the first rack is arranged on the supporting plate through a second guide groove formed in the supporting plate and meshed with the first gear; the trigger triangular block is arranged on the lower side of the first rack, the inclined surface of the trigger triangular block faces away from the trigger gear, and the inclined surface of the trigger triangular block faces the first rack; the guard plate is installed in the backup pad and is installed the one end that supports the mounting panel, and the guard plate is located the trigger gear outside.
The lower end of the first support rod is provided with a round hole; the upper end of the first support rod is arranged on the lower side of the support plate through a revolute pair; the lower end of the first supporting rod is provided with a second universal wheel; a rotating shaft of the second universal wheel is nested in the round hole on the first supporting rod; one end of the first folding rod is arranged on the outer circular surface of the first supporting rod through a revolute pair, and the other end of the first folding rod is provided with two symmetrical supporting lugs; a square groove is formed on the outer circular surface connected with one end of the rotating shaft; the connecting rotating shaft is arranged at one end of the first folding rod, which is provided with two support lugs; one end of the second folding rod is arranged at the lower side of the supporting plate through a revolute pair; a plate spring is arranged between the second folding rod and the supporting plate; the other end of the second folding rod is provided with a supporting lug, a square hole is formed in the supporting lug, the second folding rod is installed on the connecting rotating shaft through the supporting lug, and the second folding rod is matched with the first folding rod; the square hole on the second folding rod is matched with the square groove formed on the connecting rotating shaft; the hinged block is provided with a triggering hole; two rotary supporting shafts are symmetrically arranged on two side surfaces of the hinge block; the hinge block is arranged in a first avoidance groove formed in the supporting plate through the matching of the two rotating supporting shafts and two shaft holes formed in the supporting plate; one end of the first limiting rod penetrates through a trigger hole formed in the hinge block and is positioned on the lower side of the first rack; the first limiting rod is matched with a second avoiding groove formed in the first rack; the first limiting rod is matched with a first avoiding groove formed in the supporting plate; the trigger plate is arranged on the first limiting rod and matched with the trigger triangular block; the guide rail shell is arranged at the other end of the first limiting rod; the guide rail shell is nested on the connecting rotating shaft and is in sliding fit with the connecting rotating shaft; the driving plate is arranged on the side surface of one end of the guide rail shell; the driving rod is arranged on the driving plate; the transmission block is arranged in a square hole formed in the second folding rod through the matching of the guide block and the guide groove; the transmission block is matched with the driving rod; one end of the limiting block is arranged in a square groove formed in the connecting rotating shaft; the other end of the limiting block is arranged in a square hole formed in the second folding rod, and the limiting block is matched with the transmission block; a return spring is arranged between the limiting block and the bottom side surface of the square groove formed in the connecting rotating shaft.
A square notch is formed in the first lug; the first lug is arranged on the lower side of the supporting plate; the lower end of the second supporting rod is provided with a round hole; two second support lugs are symmetrically arranged at the upper end of the second support rod; the outer circle surface of the connecting shaft is provided with a mounting square groove; the connecting shaft is arranged between the two second support lugs; the second support rod is arranged on the lower side of the support plate through the matching of the two second support lugs and the connecting shaft with the first support lug; the lower end of the second supporting rod is provided with a second universal wheel; one end of the third folding rod is arranged on the outer circular surface of the second supporting rod through a revolute pair; one end of the fourth folding rod is arranged on the lower side of the supporting plate through a revolute pair; the other end of the third folding rod is connected with the other end of the fourth folding rod through a revolute pair; a plate spring is arranged between the fourth folding rod and the supporting plate; the trigger guide block is arranged in a guide groove formed in the supporting plate, and five return springs are uniformly arranged on the trigger guide block and a bracket at the top end of the guide groove; the upper end of the first trigger rod is arranged on the lower side of one end of the trigger guide block; the other end of the first trigger rod passes through a square guide hole formed in the support plate and is positioned on the lower side of the support plate; the upper end of the second trigger rod is arranged in a sliding square groove formed in the supporting plate and is positioned on the lower side of the trigger guide block; the trigger block is arranged at the lower end of the second trigger rod; the spring mounting ring is mounted on the second trigger rod; a first spring is arranged between the spring mounting ring and the lower side surface of the support plate; one end of the second limiting rod is provided with a guide hole; the second limiting rod is arranged on the second trigger rod through a guide hole; the other end of the second limiting rod penetrates through the square notch formed in the first support lug and the mounting square groove formed in the connecting shaft, and the second limiting rod cannot be separated from the square notch, so that the design reason is that the square notch can provide a guiding effect for the horizontal movement of the second limiting rod, and the guiding effect is further improved for the horizontal movement of the second trigger rod through the guide hole in the second limiting rod; the spring mounting block is mounted on the second limiting rod; a second spring is arranged between the spring mounting block and the first lug; the triggering square block is matched with a second universal wheel arranged on the first supporting rod; the first trigger rod is matched with a second universal wheel arranged on the second supporting rod.
The diameter of the first gear is smaller than that of the second gear.
In an initial state, a forty-five degree included angle is formed between the second folding rod and the supporting plate; an included angle of forty-five degrees is formed between the first folding rod and the first supporting rod; an included angle of forty-five degrees is formed between the fourth folding rod and the supporting plate; the third folding rod and the second supporting rod form a forty-five degree included angle.
As a further improvement of the technology, the connecting rotating shaft is welded and installed at one end of the first folding rod with two supporting lugs.
As a further improvement of the present technology, the return spring is a compression spring; the return spring is a compression spring.
As a further improvement of the present technology, the first spring is an extension spring; the second spring is an extension spring.
As a further improvement of the present technology, the diameter of the second gear is twice the diameter of the first gear.
In the invention, the backup plate is arranged at one end of the bed plate through a revolute pair; the two folding supporting mechanisms are symmetrically arranged on two sides of the bed plate; the two baffles are respectively arranged at the upper sides of the two folding supporting mechanisms; the mounting plate is arranged at one end of the two folding supporting mechanisms; one end of the air pressure rod is arranged on the upper side of the mounting plate, and the other end of the air pressure rod is arranged on the lower side of the backup plate through a revolute pair; the backup plate is convenient for a user to rely on and reduces fatigue; the two baffles play a role in protecting a user and preventing the user from falling down to the bottom of the bed carelessly and falling into a hurdle in the process of turning over; aggravate the degree of injury to the user; the pneumatic rod has the advantages that the inclination of the backup plate is adjusted through the pneumatic rod, so that a user can find a comfortable angle, great effort is needed to be expended if the user pulls the backup plate manually, the use efficiency is improved, and the energy spent on manual operation is reduced.
The support plate is arranged on the side surface of the bed plate; the supporting mounting plate is arranged at one end of the supporting plate; the fixed shaft is arranged on the supporting mounting plate; the first universal wheel is arranged at the lower side of the fixed shaft; the trigger gear is arranged on the fixed shaft; the second rack is arranged on the supporting plate through a first guide groove formed in the supporting plate and meshed with the trigger gear; the gear shaft is arranged in the mounting groove formed on the supporting plate; the second gear is arranged at the upper end of the gear shaft; the second gear is meshed with the second rack; the first gear is arranged at the lower end of the gear shaft; the first rack is arranged on the supporting plate through a second guide groove formed in the supporting plate and meshed with the first gear; the trigger triangular block is arranged on the lower side of the first rack; the shield plate is arranged at one end of the support plate provided with the support mounting plate; the upper end of the first support rod is arranged on the lower side of the support plate through a revolute pair; the lower end of the first supporting rod is provided with a second universal wheel; one end of the first folding rod is arranged on the outer circular surface of the first supporting rod through a revolute pair, and the connecting rotating shaft is arranged at one end of the first folding rod with two supporting lugs; one end of the second folding rod is arranged at the lower side of the supporting plate through a revolute pair; a plate spring is arranged between the second folding rod and the supporting plate; the second folding rod is arranged on the connecting rotating shaft and matched with the first folding rod; the hinge block is arranged in a first avoidance groove formed in the supporting plate through the matching of the two rotating supporting shafts and two shaft holes formed in the supporting plate; one end of the first limiting rod penetrates through a trigger hole formed in the hinge block and is positioned on the lower side of the first rack; the trigger plate is arranged on the first limiting rod and matched with the trigger triangular block; the guide rail shell is arranged at the other end of the first limiting rod; the guide rail shell is nested on the connecting rotating shaft and is in sliding fit with the connecting rotating shaft; the driving plate is arranged on the side surface of one end of the guide rail shell; the driving rod is arranged on the driving plate; the transmission block is arranged in a square hole formed in the second folding rod through the matching of the guide block and the guide groove; the transmission block is matched with the driving rod; one end of the limiting block is arranged in a square groove formed in the connecting rotating shaft; the other end of the limiting block is arranged in a square hole formed in the second folding rod, and the limiting block is matched with the transmission block; a return spring is arranged between the limiting block and the bottom side surface of the square groove formed on the connecting rotating shaft; the diameter of the first gear is smaller than that of the second gear; when the first universal wheel rotates, the first universal wheel can drive the fixed shaft to rotate; the fixed shaft rotates to drive the trigger gear to rotate; the rotation of the trigger gear can enable the second rack to move; the second gear is rotated by the movement of the second rack; the second gear wheel rotates to drive the gear shaft to rotate; the gear shaft rotates to drive the first gear to rotate; the first gear rotates to enable the first rack to move towards one side provided with the first limiting rod; when the second avoiding groove on the first rack is contacted with the upper end of the first limiting rod in the moving process of the first rack, the first rack loses the constraint on the first limiting rod, when the trigger triangular block on the first rack is contacted with the trigger plate arranged on the first limiting rod in the moving process of the first rack, the first rack moves to drive the first limiting rod to move upwards through the trigger triangular block and the trigger plate, the first limiting rod moves upwards to drive the guide rail shell to move upwards, the guide rail shell moves upwards to drive the drive plate to move upwards, the drive plate moves upwards to drive the drive rod to move upwards, the drive rod moves upwards to drive the drive block to move upwards, the drive block moves upwards to drive the limiting block to move upwards, when the limiting block completely moves into the square groove in the moving process of the limiting block, the limiting block loses the constraint on the first folding rod and the second folding rod, at the moment, the first folding rod and the second folding rod can rotate relatively; one end of a first folding rod is arranged on the outer circular surface of a first supporting rod through a revolute pair, and the first folding rod and the first supporting rod can swing mutually; one end of a second folding rod is arranged on the lower side of the supporting plate through a revolute pair, and the second folding rod can swing relative to the supporting plate; the plate spring arranged between the second folding rod and the supporting plate plays a role in returning the second folding rod; the guide rail shell has the effects that on one hand, the guide rail shell can play a role in connecting the first limiting rod and the driving rod, and on the other hand, the guide rail shell cannot interfere with the connecting rotating shaft in the upward moving process; the return spring has the function of returning the limiting block, and when the first folding rod and the second folding rod return to the original state again, the limiting block can limit the first folding rod and the second folding rod again under the action of the return spring; the first avoidance groove formed in the supporting plate is used for preventing the first limiting rod from interfering with the supporting plate in the moving process; the hinge block can swing relative to the support plate, namely the first limiting rod can swing relative to the support plate, and the function of the hinge block is to prevent the first limiting rod from interfering with the support plate; the diameter of the first gear is smaller than that of the second gear; the function of the device is to reduce the speed and increase the torque.
The first lug is arranged on the lower side of the supporting plate; the second support rod is arranged on the lower side of the support plate through the matching of the two second support lugs and the connecting shaft with the first support lug; the lower end of the second supporting rod is provided with a second universal wheel; one end of the third folding rod is arranged on the outer circular surface of the second supporting rod through a revolute pair; one end of the fourth folding rod is arranged on the lower side of the supporting plate through a revolute pair; the other end of the third folding rod is connected with the other end of the fourth folding rod through a revolute pair; a plate spring is arranged between the fourth folding rod and the supporting plate; the trigger guide block is arranged in a guide groove formed in the supporting plate, and five return springs are uniformly arranged on the trigger guide block and a bracket at the top end of the guide groove; the upper end of the first trigger rod is arranged on the lower side of one end of the trigger guide block; the upper end of the second trigger rod is arranged in a sliding square groove formed in the supporting plate; the trigger block is arranged at the lower end of the second trigger rod; the spring mounting ring is mounted on the second trigger rod; a first spring is arranged between the spring mounting ring and the lower side surface of the support plate; one end of the second limiting rod is provided with a guide hole; the second limiting rod is arranged on the second trigger rod through a guide hole; the other end of the second limiting rod penetrates through a square notch formed in the first support lug and a mounting square groove formed in the connecting shaft; the spring mounting block is mounted on the second limiting rod; a second spring is arranged between the spring mounting block and the first lug; the triggering square block is matched with a second universal wheel arranged on the first supporting rod; the first trigger rod is matched with a second universal wheel arranged on the second support rod; when the triggering square block is pushed upwards by a second universal wheel arranged on the first supporting rod, the triggering square block moves; the trigger block moves to drive the second limiting rod to move; in the moving process of the second limiting rod, when the second limiting rod is completely separated from the mounting square groove formed in the connecting shaft, the second limiting rod loses the limitation on the first support lug and the second support lug, namely, the second support rod can swing relative to the support plate; when the first trigger rod is pushed upwards, the first trigger rod drives the trigger guide block to move upwards; the trigger guide block moves upwards to enable the trigger guide block to be separated from the second trigger rod; at the moment, under the action of the first spring, the second trigger rod moves upwards, and the second trigger rod moves upwards to drive the trigger block to move, so that the trigger block is separated from a second universal wheel which is contacted with the trigger block and is arranged on the first supporting rod; the second support rod is prevented from being restored due to the influence of a second universal wheel arranged on the first support rod in the returning process; the second spring has the function of returning the second limiting rod, so that when the first support lug and the second support lug return to the original state, the second limiting rod can continue to limit the first support lug and the second support lug under the action of the second spring; the reset spring plays a role in resetting the trigger guide block.
Compared with the traditional medical push bed technology, the folding trolley of the medical stretcher designed by the invention realizes the folding function of the walking wheels and the bracket of the trolley through the transmission of the gear and the rack; when the cart is moved to the ground from the ambulance, the walking wheels and the bracket of the cart can be sequentially restored under the action of the plate spring; the cart is more convenient in the using process.
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 view of the arrangement of the folding support mechanism.
Fig. 4 is a schematic view of the engagement between the bed board and the backup board.
Fig. 5 is a mounting plate installation schematic.
Fig. 6 is a schematic structural view of the folding support mechanism.
Fig. 7 is a schematic view of the second support bar installation.
Fig. 8 is a schematic view of trigger guide block installation.
Fig. 9 is a schematic view of the first support bar installation.
Fig. 10 is a schematic view of a structure of a shield plate.
FIG. 11 is a first universal wheel mounting schematic.
Fig. 12 is a trigger gear installation schematic.
FIG. 13 is a schematic illustration of a support plate configuration.
Fig. 14 is a schematic view of a first bypass trough distribution.
Fig. 15 is a schematic view of the second guide groove distribution.
Fig. 16 is a second rack mount schematic.
FIG. 17 is a schematic view of the trigger triangle block and trigger plate mating.
Fig. 18 is a schematic view of the second gear and second rack mating.
Fig. 19 is a schematic view of a first rack configuration.
Fig. 20 is a schematic view of a hinge block structure.
Fig. 21 is a schematic view of a rail housing installation.
Fig. 22 is a schematic view of the first folding bar and the second folding bar being engaged.
Fig. 23 is a schematic view of a return spring installation.
FIG. 24 is a schematic diagram of a square hole distribution.
Fig. 25 is a schematic view of a connecting shaft structure.
Fig. 26 is a schematic view of a second folding bar configuration.
Fig. 27 is a drive rod mounting schematic.
Fig. 28 is a schematic view of the return spring installation.
Fig. 29 is a schematic view of a first lug structure.
Fig. 30 is a schematic view of the installation square groove distribution.
FIG. 31 is a schematic view of a spring mounting block installation.
FIG. 32 is a schematic view of a spring collar installation.
Number designation in the figures: 1. a baffle plate; 2. a bed board; 3. a backup plate; 4. mounting a plate; 5. a folding support mechanism; 6. a pneumatic rod; 7. a first universal wheel; 8. a first support bar; 9. a first folding bar; 10. a second folding bar; 11. a second universal wheel; 12. a third folding bar; 13. a plate spring; 14. a shield plate; 15. a first limit rod; 16. a support plate; 17. a second support bar; 18. a fourth folding bar; 20. a first rack; 21. supporting the mounting plate; 22. a second rack; 23. a fixed shaft; 24. triggering a gear; 25. mounting grooves; 26. a first guide groove; 27. a second guide groove; 28. a first avoidance slot; 29. a shaft hole; 30. a second gear; 31. triggering the triangular block; 32. a trigger plate; 33. a gear shaft; 34. a first gear; 35. a second avoidance slot; 36. a hinged block; 37. a trigger hole; 38. rotating the support shaft; 39. a guide rail housing; 40. a drive plate; 41. a drive rod; 42. a return spring; 43. a transmission block; 44. a limiting block; 45. connecting the rotating shaft; 46. a square hole; 47. a square groove; 48. a sliding square groove; 49. a guide groove; 50. a square guide hole; 51. a first trigger lever; 52. triggering a square block; 53. triggering a guide block; 54. a return spring; 55. a second limiting rod; 56. a first spring; 57. a second trigger lever; 58. a second spring; 59. a first lug; 60. a square notch; 61. a second lug; 62. a connecting shaft; 63. installing a square groove; 64. a spring mounting block; 65. a guide hole; 66. a spring mounting ring.
Detailed Description
As shown in fig. 1 and 2, the folding bed comprises a baffle plate 1, a bed plate 2, a backup plate 3, a mounting plate 4, a folding supporting mechanism 5 and a pneumatic rod 6, wherein as shown in fig. 4, the backup plate 3 is mounted at one end of the bed plate 2 through a revolute pair; as shown in fig. 1, two folding support mechanisms 5 are symmetrically installed on two sides of the bed plate 2; as shown in fig. 3, two baffle plates 1 are respectively arranged on the upper sides of two folding supporting mechanisms 5; as shown in fig. 5, the mounting plate 4 is mounted at one end of the two folding support mechanisms 5, and the mounting plate 4 is close to the backup plate 3; as shown in fig. 2 and 3, one end of the pneumatic rod 6 is mounted on the upper side of the mounting plate 4, and the other end of the pneumatic rod 6 is mounted on the lower side of the backup plate 3 through a revolute pair.
As shown in fig. 6, the folding support mechanism 5 includes a first universal wheel 7, a first support rod 8, a first folding rod 9, a second folding rod 10, a second universal wheel 11, a third folding rod 12, a plate spring 13, a shield plate 14, a first limit rod 15, a support plate 16, a second support rod 17, a fourth folding rod 18, a first rack 20, a support mounting plate 21, a second rack 22, a fixing shaft 23, a trigger gear 24, a mounting groove 25, a first guide groove 26, a second guide groove 27, a first escape groove 28, a shaft hole 29, a first gear 30, a trigger triangle block 31, a trigger plate 32, a gear shaft 33, a second gear 34, a second escape groove 35, a hinge block 36, a trigger hole 37, a rotation support shaft 38, a guide rail housing 39, a drive plate 40, a drive rod 41, a return spring 42, a drive block 43, a limit block 44, a connection rotation shaft 45, a square hole 46, a square groove 47, a sliding square groove 48, a sliding, The device comprises a guide groove 49, a square guide hole 50, a first trigger rod 51, a trigger block 52, a trigger guide block 53, a return spring 54, a second limit rod 55, a first spring 56, a second trigger rod 57, a second spring 58, a first support lug 59, a square notch 60, a second support lug 61, a connecting shaft 62, a mounting square groove 63, a spring mounting block 64, a guide hole 65 and a spring mounting ring 66, wherein as shown in fig. 13, one end of a support plate 16 is provided with a mounting groove 25; a first guide groove 26 is formed at one side of the mounting groove 25, and as shown in fig. 14, a second guide groove 27 is formed at the other side of the mounting groove 25; a first avoidance groove 28 is formed on the upper and lower side surfaces of one end of the supporting plate 16, on which the mounting groove 25 is formed, and the first avoidance groove 28 is communicated with the second guide groove 27 as shown in fig. 15; two symmetrical shaft holes 29 are formed on two sides of the first avoidance groove 28; as shown in fig. 13, the other end of the support plate 16 is provided with a guide groove 49; a sliding square groove 48 is formed on the lower side surface of one end of the guide groove 49; a square guide hole 50 is formed on the lower side surface of the other end of the guide groove 49; the supporting plate 16 is installed at the side of the bed plate 2.
As shown in fig. 11, the support mounting plate 21 is mounted on one end of the support plate 16, and the support mounting plate 21 is close to the backup plate 3; as shown in fig. 12, the fixing shaft 23 has a circular hole at a lower end thereof, and the fixing shaft 23 is mounted on the support mounting plate 21; the first universal wheel 7 is installed at the lower side of the fixed shaft 23, as shown in fig. 11, the rotating shaft of the first universal wheel 7 is installed in the round hole of the fixed shaft 23 through the matching of the guide block and the guide groove 49; as shown in fig. 12, the trigger gear 24 is mounted on the fixed shaft 23, and the trigger gear 24 is located on the upper side of the support mounting plate 21; as shown in fig. 16, the second rack 22 is mounted on the support plate 16 through a first guide groove 26 opened on the support plate 16, and as shown in fig. 18, the second rack 22 is engaged with the trigger gear 24; the gear shaft 33 is installed in the installation groove 25 opened on the support plate 16; the second gear 34 is mounted on the upper end of the gear shaft 33; the second gear 34 is engaged with the second rack 22; the first gear 30 is mounted on the lower end of the gear shaft 33; as shown in fig. 19, the upper and lower side surfaces of the first rack 20 are provided with through second avoidance grooves 35; the first rack 20 is mounted on the support plate 16 through a second guide groove 27 opened on the support plate 16, as shown in fig. 18, and the first rack 20 is engaged with the first gear 30; the trigger triangle block 31 is installed at the lower side of the first rack 20, as shown in fig. 17, the inclined surface of the trigger triangle block 31 faces away from the trigger gear 24, and the inclined surface of the trigger triangle block 31 faces the first rack 20; the shield plate 14 is mounted on the end of the support plate 16 to which the support mounting plate 21 is mounted, and as shown in fig. 9 and 10, the shield plate 14 is located outside the trigger gear 24.
As shown in fig. 17, the lower end of the first support rod 8 has a circular hole; the upper end of the first support rod 8 is arranged at the lower side of the support plate 16 through a revolute pair; a second universal wheel 11 is arranged at the lower end of the first supporting rod 8; the rotating shaft of the second universal wheel 11 is nested in the round hole on the first supporting rod 8; one end of the first folding rod 9 is mounted on the outer circular surface of the first supporting rod 8 through a revolute pair, as shown in fig. 24, and the other end of the first folding rod 9 is provided with two symmetrical support lugs; as shown in fig. 25, a square groove 47 is formed on the outer circumferential surface of one end of the rotating shaft 45; the connecting rotating shaft 45 is arranged at one end of the first folding rod 9 with two support lugs; as shown in fig. 17, one end of the second folding bar 10 is mounted on the lower side of the support plate 16 by a revolute pair; a plate spring 13 is arranged between the second folding rod 10 and the support plate 16; as shown in fig. 26, the other end of the second folding rod 10 has a supporting lug, and the supporting lug has a square hole 46, through which the second folding rod 10 is mounted on the connecting rotating shaft 45, and the second folding rod 10 is matched with the first folding rod 9; the square hole 46 on the second folding rod 10 is matched with the square groove 47 formed on the connecting rotating shaft 45; as shown in fig. 20, the hinge block 36 has a trigger hole 37; two rotating support shafts 38 are symmetrically arranged on two side surfaces of the hinge block 36; as shown in fig. 17, the hinge block 36 is mounted in the first avoiding groove 28 formed in the support plate 16 by the engagement of the two rotation support shafts 38 with the two shaft holes 29 formed in the support plate 16; as shown in fig. 19, one end of the first stopper 15 is located on the lower side of the first rack 20 through the trigger hole 37 opened in the hinge block 36; the first limiting rod 15 is matched with a second avoidance groove 35 formed in the first rack 20; the first limiting rod 15 is matched with a first avoidance groove 28 formed in the supporting plate 16; the trigger plate 32 is arranged on the first limiting rod 15, and the trigger plate 32 is matched with the trigger triangular block 31; as shown in fig. 21, a guide rail housing 39 is mounted on the other end of the first stopper rod 15; as shown in fig. 22, the guide rail shell 39 is nested on the connecting rotating shaft 45, and the guide rail shell 39 is in sliding fit with the connecting rotating shaft 45; as shown in fig. 27, the driving plate 40 is installed at the side of one end of the rail case 39; the drive lever 41 is mounted on the drive plate 40; the driving block 43 is arranged in a square hole 46 formed on the second folding rod 10 through the matching of the guide block and the guide groove 49; the transmission block 43 is matched with the driving rod 41; one end of the limiting block 44 is arranged in a square groove 47 formed on the connecting rotating shaft 45; as shown in fig. 23, the other end of the limiting block 44 is installed in a square hole 46 formed in the second folding rod 10, and the limiting block 44 is engaged with the driving block 43; a return spring 42 is arranged between the limiting block 44 and the bottom side surface of the square groove 47 formed on the connecting rotating shaft 45.
As shown in fig. 29, the first lug 59 is provided with a square notch 60; the first lug 59 is mounted on the underside of the support plate 16; the lower end of the second support bar 17 is provided with a round hole; as shown in fig. 30, two second lugs 61 are symmetrically mounted on the upper end of the second support rod 17; the outer circle surface of the connecting shaft 62 is provided with a mounting square groove 63; the connecting shaft 62 is installed between the two second lugs 61; as shown in fig. 7, the second support bar 17 is mounted on the lower side of the support plate 16 by the engagement of the two second lugs 61 and the connecting shaft 62 with the first lugs 59; a second universal wheel 11 is arranged at the lower end of the second supporting rod 17; one end of the third folding rod 12 is installed on the outer circular surface of the second supporting rod 17 through a revolute pair; one end of the fourth folding rod 18 is mounted on the lower side of the support plate 16 through a revolute pair; the other end of the third folding rod 12 is connected with the other end of the fourth folding rod 18 through a revolute pair; a plate spring 13 is arranged between the fourth folding rod 18 and the support plate 16; as shown in fig. 8, the trigger guide 53 is installed in the guide groove 49 opened on the support plate 16, and five return springs 54 are uniformly installed on the trigger guide 53 and the top bracket of the guide groove 49; as shown in fig. 28, the upper end of the first trigger lever 51 is mounted on the lower side of one end of the trigger guide 53; the other end of the first trigger lever 51 is located at the lower side of the support plate 16 through a square guide hole 50 opened on the support plate 16; the upper end of the second trigger rod 57 is installed in the sliding square groove 48 opened on the support plate 16 and is located at the lower side of the trigger guide block 53; the trigger block 52 is mounted at the lower end of the second trigger rod 57; as shown in fig. 32, the spring mounting ring 66 is mounted on the second trigger lever 57; a first spring 56 is mounted between the spring mounting ring 66 and the underside of the support plate 16; as shown in fig. 31, one end of the second stopper rod 55 is provided with a guide hole 65; the second limit rod 55 is mounted on the second trigger rod 57 through a guide hole 65; the other end of the second limiting rod 55 passes through a square notch 60 formed in the first support lug 59 and a mounting square groove 63 formed in the connecting shaft 62; the spring mounting block 64 is mounted on the second stopper rod 55; a second spring 58 is arranged between the spring mounting block 64 and the first lug 59; the triggering block 52 cooperates with the second universal wheel 11 mounted on the first support bar 8; the first trigger lever 51 is engaged with the second universal wheel 11 mounted on the second support lever 17.
The diameter of the first gear 30 is smaller than the diameter of the second gear 34.
In an initial state, an included angle of forty-five degrees is formed between the second folding rod 10 and the supporting plate 16; an included angle of forty-five degrees is formed between the first folding rod 9 and the first supporting rod 8; an included angle of forty-five degrees is formed between the fourth folding rod 18 and the supporting plate 16; the third folding rod 12 and the second supporting rod 17 form an included angle of forty-five degrees.
The connecting shaft 45 is welded to the end of the first folding rod 9 having two lugs.
The return spring 42 is a compression spring; the return spring 54 is a compression spring.
The first spring 56 is an extension spring; the second spring 58 is an extension spring.
The diameter of the second gear 34 is twice the diameter of the first gear 30.
In summary, the following steps:
the folding trolley of the medical stretcher designed by the invention realizes the folding function of the walking wheels and the bracket of the trolley through the transmission of the gear and the rack; when the cart is moved to the ambulance, the vibration of the cart can be reduced through the two first universal wheels 7, the first supporting rod 8 and the second supporting rod 17 are triggered through the two first universal wheels 7, so that the first supporting rod 8 and the second supporting rod 17 realize a folding function, and when the cart is moved to the ground from the ambulance, the walking wheels and the bracket of the cart can be sequentially recovered under the action of the plate spring 13; the cart is more convenient in the using process.
In the invention, a backup plate 3 is arranged at one end of a bed plate 2 through a revolute pair; the two folding supporting mechanisms 5 are symmetrically arranged on two sides of the bed plate 2; the two baffles 1 are respectively arranged at the upper sides of the two folding supporting mechanisms 5; the mounting plate 4 is arranged at one end of the two folding supporting mechanisms 5; one end of the pneumatic rod 6 is arranged on the upper side of the mounting plate 4, and the other end of the pneumatic rod 6 is arranged on the lower side of the backup plate 3 through a revolute pair; the backup plate 3 is convenient for a user to rely on and reduces fatigue; the two baffles 1 play a role in protecting a user and preventing the user from falling down to the bottom of a bed carelessly and falling into a hurdle in the process of turning over; aggravate the degree of injury to the user; the pneumatic rod 6 is used for adjusting the inclination of the backup plate 3 through the pneumatic rod 6, so that a user can find a comfortable angle, great effort is needed to be expended if the user pulls the backup plate manually, the use efficiency is improved, and the energy spent on manual operation is reduced.
The support plate 16 is arranged on the side surface of the bed plate 2; the supporting mounting plate 21 is mounted at one end of the supporting plate 16; the fixed shaft 23 is arranged on the support mounting plate 21; the first universal wheel 7 is arranged at the lower side of the fixed shaft 23; the trigger gear 24 is mounted on the fixed shaft 23; the second rack 22 is mounted on the support plate 16 through a first guide groove 26 opened on the support plate 16, and the second rack 22 is engaged with the trigger gear 24; the gear shaft 33 is installed in the installation groove 25 opened on the support plate 16; the second gear 34 is mounted on the upper end of the gear shaft 33; the second gear 34 is engaged with the second rack 22; the first gear 30 is mounted on the lower end of the gear shaft 33; the first rack 20 is mounted on the support plate 16 through a second guide groove 27 opened on the support plate 16, and the first rack 20 is engaged with the first gear 30; the trigger triangular block 31 is arranged at the lower side of the first rack 20; the shield plate 14 is installed at one end of the support plate 16 where the support installation plate 21 is installed; the upper end of the first support rod 8 is arranged at the lower side of the support plate 16 through a revolute pair; a second universal wheel 11 is arranged at the lower end of the first supporting rod 8; one end of the first folding rod 9 is arranged on the outer circular surface of the first supporting rod 8 through a revolute pair, and the connecting rotating shaft 45 is arranged at one end of the first folding rod 9 with two support lugs; one end of the second folding rod 10 is installed at the lower side of the support plate 16 through a revolute pair; a plate spring 13 is arranged between the second folding rod 10 and the support plate 16; the second folding rod 10 is installed on the connecting rotating shaft 45, and the second folding rod 10 is matched with the first folding rod 9; the hinge block 36 is mounted in the first avoiding groove 28 formed in the support plate 16 by the cooperation of the two rotation support shafts 38 and the two shaft holes 29 formed in the support plate 16; one end of the first limiting rod 15 passes through a trigger hole 37 formed in the hinge block 36 and is positioned on the lower side of the first rack 20; the trigger plate 32 is arranged on the first limiting rod 15, and the trigger plate 32 is matched with the trigger triangular block 31; the guide rail shell 39 is installed at the other end of the first limit rod 15; the guide rail shell 39 is nested on the connecting rotating shaft 45, and the guide rail shell 39 is in sliding fit with the connecting rotating shaft 45; the driving plate 40 is installed at the side of one end of the guide rail case 39; the drive lever 41 is mounted on the drive plate 40; the driving block 43 is arranged in a square hole 46 formed on the second folding rod 10 through the matching of the guide block and the guide groove 49; the transmission block 43 is matched with the driving rod 41; one end of the limiting block 44 is arranged in a square groove 47 formed on the connecting rotating shaft 45; the other end of the limiting block 44 is installed in a square hole 46 formed in the second folding rod 10, and the limiting block 44 is matched with the transmission block 43; a return spring 42 is arranged between the limiting block 44 and the bottom side surface of a square groove 47 formed on the connecting rotating shaft 45; the diameter of the first gear 30 is smaller than the diameter of the second gear 34; when the first universal wheel 7 rotates, the first universal wheel 7 can drive the fixed shaft 23 to rotate; the fixed shaft 23 rotates to drive the trigger gear 24 to rotate; rotation of the trigger gear 24 causes the second rack 22 to move; the second rack 22 moving causes the second gear 34 to rotate; the second gear 34 rotates to drive the gear shaft 33 to rotate; the gear shaft 33 rotates to drive the first gear 30 to rotate; the first gear 30 rotates to move the first rack 20 toward the side where the first stopper rod 15 is installed; in the moving process of the first rack 20, when the second avoiding groove 35 on the first rack 20 contacts with the upper end of the first limiting rod 15, the first rack 20 loses the constraint on the first limiting rod 15, in the moving process of the first rack 20, when the trigger triangle block 31 on the first rack 20 contacts with the trigger plate 32 installed on the first limiting rod 15, the first rack 20 moves, the trigger triangle block 31 and the trigger plate 32 drive the first limiting rod 15 to move upwards, the first limiting rod 15 moves upwards to drive the guide rail shell 39 to move upwards, the guide rail shell 39 moves upwards to drive the drive plate 40 to move upwards, the drive plate 40 moves upwards to drive the drive rod 41 to move upwards, the drive rod 41 moves upwards to drive the drive block 43 to move upwards, the drive block 43 moves upwards to drive the limiting block 44 to move upwards, in the moving process of the limiting block 44, when the limiting block 44 moves completely into the square groove 47, the limiting block 44 loses the constraint of the first folding rod 9 and the second folding rod 10, and at this time, the first folding rod 9 and the second folding rod 10 can rotate relatively; in the invention, one end of a first folding rod 9 is arranged on the outer circular surface of a first supporting rod 8 through a revolute pair, and the first folding rod 9 and the first supporting rod 8 can swing mutually; one end of the second folding rod 10 is installed at the lower side of the support plate 16 through a revolute pair, and the second folding rod 10 can swing relative to the support plate 16; the plate spring 13 installed between the second folding bar 10 and the supporting plate 16 functions to return the second folding bar 10; the guide rail shell 39 has the functions of connecting the first limiting rod 15 and the driving rod 41 on one hand, and on the other hand, the guide rail shell 39 does not interfere with the connecting rotating shaft 45 in the upward moving process; the return spring 42 has the function of returning the limiting block 44, and when the first folding rod 9 and the second folding rod 10 return to the original state again, the limiting block 44 can limit the first folding rod 9 and the second folding rod 10 again under the action of the return spring 42; the first avoiding groove 28 formed on the supporting plate 16 functions to prevent the first limiting rod 15 from interfering with the supporting plate 16 during the movement; the hinge block 36 can swing relative to the support plate 16, that is, the first limiting rod 15 can swing relative to the support plate 16, and the function of the hinge block is to prevent the first limiting rod 15 from interfering with the support plate 16; the diameter of the first gear 30 is smaller than the diameter of the second gear 34 in the present invention; the function of the device is to reduce the speed and increase the torque.
The first lug 59 is mounted on the underside of the support plate 16 in the present invention; the second support rod 17 is arranged on the lower side of the support plate 16 through the matching of two second lugs 61 and a connecting shaft 62 with the first lug 59; a second universal wheel 11 is arranged at the lower end of the second supporting rod 17; one end of the third folding rod 12 is installed on the outer circular surface of the second supporting rod 17 through a revolute pair; one end of the fourth folding rod 18 is mounted on the lower side of the support plate 16 through a revolute pair; the other end of the third folding rod 12 is connected with the other end of the fourth folding rod 18 through a revolute pair; a plate spring 13 is arranged between the fourth folding rod 18 and the support plate 16; the trigger guide block 53 is arranged in a guide groove 49 formed on the support plate 16, and five return springs 54 are uniformly arranged on the trigger guide block 53 and a bracket at the top end of the guide groove 49; the upper end of the first trigger rod 51 is mounted on the lower side of one end of the trigger guide block 53; the upper end of the second trigger lever 57 is mounted in the sliding square groove 48 formed on the support plate 16; the trigger block 52 is mounted at the lower end of the second trigger rod 57; a spring mounting ring 66 is mounted on the second trigger lever 57; a first spring 56 is mounted between the spring mounting ring 66 and the underside of the support plate 16; one end of the second limiting rod 55 is provided with a guide hole 65; the second limit rod 55 is mounted on the second trigger rod 57 through a guide hole 65; the other end of the second limiting rod 55 passes through a square notch 60 formed in the first support lug 59 and a mounting square groove 63 formed in the connecting shaft 62; the spring mounting block 64 is mounted on the second stopper rod 55; a second spring 58 is arranged between the spring mounting block 64 and the first lug 59; the triggering block 52 cooperates with the second universal wheel 11 mounted on the first support bar 8; the first trigger lever 51 is matched with the second universal wheel 11 arranged on the second support lever 17; when the trigger block 52 is pushed upwards by the second universal wheel 11 mounted on the first support rod 8, the trigger block 52 moves; the trigger block 52 moves to drive the second limiting rod 55 to move; in the moving process of the second limiting rod 55, when the second limiting rod 55 is completely separated from the mounting square groove 63 formed on the connecting shaft 62, the second limiting rod 55 loses the limitation on the first support lug 59 and the second support lug 61, that is, the second support rod 17 can swing relative to the support plate 16; when the first trigger rod 51 is pushed upwards, the first trigger rod 51 drives the trigger guide block 53 to move upwards; the upward movement of the trigger guide 53 causes the trigger guide 53 to disengage from the second trigger lever 57; at this time, under the action of the first spring 56, the second trigger rod 57 moves upwards, and the second trigger rod 57 moves upwards to drive the trigger block 52 to move, so that the trigger block 52 is separated from the second universal wheel 11 which is contacted with the trigger block and is arranged on the first support rod 8; the second supporting rod 17 is prevented from influencing the recovery process because of the second universal wheel 11 arranged on the first supporting rod 8 in the returning process; the second spring 58 plays a role in returning the second limit rod 55, so that when the first support lug 59 and the second support lug 61 are restored to the original state, the second limit rod 55 can continue to play a role in limiting the first support lug 59 and the second support lug 61 under the action of the second spring 58; the return spring 54 of the present invention acts to return the trigger guide 53.
The specific implementation mode is as follows: when the medical stretcher folding cart designed by the invention is used, when the cart is moved to an ambulance from the ground, the two first universal wheels 7 firstly contact with the bottom surface of the carriage, and at the moment, the two first universal wheels 7 rotate; when the first universal wheel 7 rotates, the first universal wheel 7 can drive the fixed shaft 23 to rotate; the fixed shaft 23 rotates to drive the trigger gear 24 to rotate; rotation of the trigger gear 24 causes the second rack 22 to move; the second rack 22 moving causes the second gear 34 to rotate; the second gear 34 rotates to drive the gear shaft 33 to rotate; the gear shaft 33 rotates to drive the first gear 30 to rotate; the first gear 30 rotates to move the first rack 20 toward the side where the first stopper rod 15 is installed; in the moving process of the first rack 20, when the second avoiding groove 35 on the first rack 20 contacts with the upper end of the first limiting rod 15, the first rack 20 loses the constraint on the first limiting rod 15, in the moving process of the first rack 20, when the trigger triangle block 31 on the first rack 20 contacts with the trigger plate 32 installed on the first limiting rod 15, the first rack 20 moves, the trigger triangle block 31 and the trigger plate 32 drive the first limiting rod 15 to move upwards, the first limiting rod 15 moves upwards to drive the guide rail shell 39 to move upwards, the guide rail shell 39 moves upwards to drive the drive plate 40 to move upwards, the drive plate 40 moves upwards to drive the drive rod 41 to move upwards, the drive rod 41 moves upwards to drive the drive block 43 to move upwards, the drive block 43 moves upwards to drive the limiting block 44 to move upwards, in the moving process of the limiting block 44, when the limiting block 44 moves completely into the square groove 47, the limiting block 44 loses the constraint of the first folding rod 9 and the second folding rod 10, and at this time, the first folding rod 9 and the second folding rod 10 can rotate relatively; when the second universal wheel 11 installed on the first support bar 8 contacts the trigger block 52 during the folding process, the trigger block 52 moves; the movement of the trigger block 52 drives the second trigger rod to move horizontally in the sliding square groove, and drives the second limit rod 55 to move; in the moving process of the second limit rod 55, when the second limit rod 55 is completely separated from the mounting square groove 63 formed on the connecting shaft 62 and does not separate from the square notch, the second limit rod 55 loses the limit of the first support lug 59 and the second support lug 61, that is, the second support rod 17 can swing relative to the support plate 16; the third folding bar 12 and the fourth folding bar 18 can swing; namely, the supporting frame and the travelling wheels on the cart are folded; the cart can smoothly enter the ambulance; when the cart moves from the ambulance to the ground, the two first universal wheels 7 rotate in opposite directions; the first universal wheel 7 rotates reversely, so that the first limiting rod 15 and the first rack 20 can be restored to the original positions; at this time, under the action of the corresponding plate spring 13, the second support rod 17, the third folding rod 12 and the fourth folding rod 18 are restored to the original state; when the second support bar 17, the third folding bar 12 and the fourth folding bar 18 are restored to their original states, the first support bar 8, the first folding bar 9 and the second folding bar 10 are restored to their original states under the action of the corresponding plate springs 13, that is, the cart can normally travel.
Claims (5)
1. The utility model provides a folding bed pusher that medical field used which characterized in that: the folding bed comprises a baffle plate, a bed plate, a backup plate, an installation plate, a folding supporting mechanism and a pneumatic rod, wherein the backup plate is installed at one end of the bed plate through a revolute pair; the two folding supporting mechanisms are symmetrically arranged on two sides of the bed plate; the two baffles are respectively arranged at the upper sides of the two folding supporting mechanisms; the mounting plate is arranged at one end of each of the two folding supporting mechanisms and is close to the backup plate; one end of the air pressure rod is arranged on the upper side of the mounting plate, and the other end of the air pressure rod is arranged on the lower side of the backup plate through a revolute pair;
the folding support mechanism comprises a first universal wheel, a first support rod, a first folding rod, a second universal wheel, a third folding rod, a plate spring, a shield plate, a first limiting rod, a support plate, a second support rod, a fourth folding rod, a first rack, a support mounting plate, a second rack, a fixed shaft, a trigger gear, a mounting groove, a first guide groove, a second guide groove, a first avoidance groove, a shaft hole, a first gear, a trigger triangular block, a trigger plate, a gear shaft, a second gear, a second avoidance groove, a hinge block, a trigger hole, a rotating support shaft, a guide rail shell, a drive plate, a drive rod, a return spring, a transmission block, a limiting block, a connecting rotating shaft, a square hole, a square groove, a sliding square groove, a guide groove, a square guide hole, a first trigger rod, a trigger square block, a trigger guide block, a return spring, a second limiting rod, a first spring, a second trigger rod, a third universal, The spring mounting device comprises a second spring, a first support lug, a square notch, a second support lug, a connecting shaft, a mounting square groove, a spring mounting block, a guide hole and a spring mounting ring, wherein one end of a support plate is provided with a mounting groove; a first guide groove is formed in one side of the mounting groove, and a second guide groove is formed in the other side of the mounting groove; the upper side face and the lower side face of one end of the supporting plate, which is provided with the mounting groove, are provided with a first run-through avoidance groove, and the first avoidance groove is communicated with the second guide groove; two symmetrical shaft holes are formed in the two sides of the first avoidance groove; the other end of the supporting plate is provided with a guide groove; a sliding square groove is formed on the lower side surface of one end of the guide groove; a square guide hole is formed on the lower side surface of the other end of the guide groove; the supporting plate is arranged on the side surface of the bed plate;
the supporting mounting plate is arranged at one end of the supporting plate and is close to the backup plate; the lower end of the fixed shaft is provided with a round hole, and the fixed shaft is arranged on the support mounting plate; the first universal wheel is arranged at the lower side of the fixed shaft, and a rotating shaft of the first universal wheel is arranged in a circular hole in the fixed shaft through the matching of the guide block and the guide groove; the trigger gear is arranged on the fixed shaft and is positioned on the upper side of the supporting and mounting plate; the second rack is arranged on the supporting plate through a first guide groove formed in the supporting plate and meshed with the trigger gear; the gear shaft is arranged in the mounting groove formed on the supporting plate; the second gear is arranged at the upper end of the gear shaft; the second gear is meshed with the second rack; the first gear is arranged at the lower end of the gear shaft; a second run-through avoidance groove is formed in the upper side face and the lower side face of the first rack; the first rack is arranged on the supporting plate through a second guide groove formed in the supporting plate and meshed with the first gear; the trigger triangular block is arranged on the lower side of the first rack, the inclined surface of the trigger triangular block faces away from the trigger gear, and the inclined surface of the trigger triangular block faces the first rack; the shield plate is arranged at one end of the support plate, which is provided with the support mounting plate, and is positioned outside the trigger gear;
the lower end of the first support rod is provided with a round hole; the upper end of the first support rod is arranged on the lower side of the support plate through a revolute pair; the lower end of the first supporting rod is provided with a second universal wheel; a rotating shaft of the second universal wheel is nested in the round hole on the first supporting rod; one end of the first folding rod is arranged on the outer circular surface of the first supporting rod through a revolute pair, and the other end of the first folding rod is provided with two symmetrical supporting lugs; a square groove is formed on the outer circular surface connected with one end of the rotating shaft; the connecting rotating shaft is arranged at one end of the first folding rod, which is provided with two support lugs; one end of the second folding rod is arranged at the lower side of the supporting plate through a revolute pair; a plate spring is arranged between the second folding rod and the supporting plate; the other end of the second folding rod is provided with a supporting lug, a square hole is formed in the supporting lug, the second folding rod is installed on the connecting rotating shaft through the supporting lug, and the second folding rod is matched with the first folding rod; the square hole on the second folding rod is matched with the square groove formed on the connecting rotating shaft; the hinged block is provided with a triggering hole; two rotary supporting shafts are symmetrically arranged on two side surfaces of the hinge block; the hinge block is arranged in a first avoidance groove formed in the supporting plate through the matching of the two rotating supporting shafts and two shaft holes formed in the supporting plate; one end of the first limiting rod penetrates through a trigger hole formed in the hinge block and is positioned on the lower side of the first rack; the first limiting rod is matched with a second avoiding groove formed in the first rack; the first limiting rod is matched with a first avoiding groove formed in the supporting plate; the trigger plate is arranged on the first limiting rod and matched with the trigger triangular block; the guide rail shell is arranged at the other end of the first limiting rod; the guide rail shell is nested on the connecting rotating shaft and is in sliding fit with the connecting rotating shaft; the driving plate is arranged on the side surface of one end of the guide rail shell; the driving rod is arranged on the driving plate; the transmission block is arranged in a square hole formed in the second folding rod through the matching of the guide block and the guide groove; the transmission block is matched with the driving rod; one end of the limiting block is arranged in a square groove formed in the connecting rotating shaft; the other end of the limiting block is arranged in a square hole formed in the second folding rod, and the limiting block is matched with the transmission block; a return spring is arranged between the limiting block and the bottom side surface of the square groove formed on the connecting rotating shaft;
a square notch is formed in the first lug; the first lug is arranged on the lower side of the supporting plate; the lower end of the second supporting rod is provided with a round hole; two second support lugs are symmetrically arranged at the upper end of the second support rod; the outer circle surface of the connecting shaft is provided with a mounting square groove; the connecting shaft is arranged between the two second support lugs; the second support rod is arranged on the lower side of the support plate through the matching of the two second support lugs and the connecting shaft with the first support lug; the lower end of the second supporting rod is provided with a second universal wheel; one end of the third folding rod is arranged on the outer circular surface of the second supporting rod through a revolute pair; one end of the fourth folding rod is arranged on the lower side of the supporting plate through a revolute pair; the other end of the third folding rod is connected with the other end of the fourth folding rod through a revolute pair; a plate spring is arranged between the fourth folding rod and the supporting plate; the trigger guide block is arranged in a guide groove formed in the supporting plate, and five return springs are uniformly arranged on the trigger guide block and a bracket at the top end of the guide groove; the upper end of the first trigger rod is arranged on the lower side of one end of the trigger guide block; the other end of the first trigger rod passes through a square guide hole formed in the support plate and is positioned on the lower side of the support plate; the upper end of the second trigger rod is arranged in a sliding square groove formed in the supporting plate and is positioned on the lower side of the trigger guide block; the trigger block is arranged at the lower end of the second trigger rod; the spring mounting ring is mounted on the second trigger rod; a first spring is arranged between the spring mounting ring and the lower side surface of the support plate; one end of the second limiting rod is provided with a guide hole; the second limiting rod is arranged on the second trigger rod through a guide hole; the other end of the second limiting rod penetrates through the square notch formed in the first support lug and the mounting square groove formed in the connecting shaft, and the second limiting rod cannot be separated from the square notch; the spring mounting block is mounted on the second limiting rod; a second spring is arranged between the spring mounting block and the first lug; the triggering square block is matched with a second universal wheel arranged on the first supporting rod; the first trigger rod is matched with a second universal wheel arranged on the second support rod;
the diameter of the first gear is smaller than that of the second gear;
in an initial state, a forty-five degree included angle is formed between the second folding rod and the supporting plate; an included angle of forty-five degrees is formed between the first folding rod and the first supporting rod; an included angle of forty-five degrees is formed between the fourth folding rod and the supporting plate; the third folding rod and the second supporting rod form a forty-five degree included angle.
2. A folding manipulator for use in the medical field according to claim 1, wherein: the connecting rotating shaft is welded and installed at one end of the first folding rod, which is provided with two support lugs.
3. A folding manipulator for use in the medical field according to claim 1, wherein: the return spring is a compression spring; the return spring is a compression spring.
4. A folding manipulator for use in the medical field according to claim 1, wherein: the first spring is an extension spring; the second spring is an extension spring.
5. A folding manipulator for use in the medical field according to claim 1, wherein: the diameter of the second gear is twice that of the first gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763920.7A CN109009704B (en) | 2018-07-12 | 2018-07-12 | Folding manipulator used in medical field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763920.7A CN109009704B (en) | 2018-07-12 | 2018-07-12 | Folding manipulator used in medical field |
Publications (2)
| Publication Number | Publication Date |
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| CN109009704A CN109009704A (en) | 2018-12-18 |
| CN109009704B true CN109009704B (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810763920.7A Expired - Fee Related CN109009704B (en) | 2018-07-12 | 2018-07-12 | Folding manipulator used in medical field |
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| Country | Link |
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| CN (1) | CN109009704B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10023214B2 (en) * | 2016-06-12 | 2018-07-17 | 2S Innovations, Inc. | Device for moving a load |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1221762B (en) * | 1964-08-03 | 1966-07-28 | Geyr Utila Geraetebau | Metal stretcher |
| CN2148003Y (en) * | 1993-02-19 | 1993-12-01 | 左明顺 | Automatic lift-and-fall transport cart |
| CN2724670Y (en) * | 2004-08-23 | 2005-09-14 | 江阴万事兴医疗器械有限公司 | Stretcher beintg able to put into automobile automatically |
| JPWO2010053025A1 (en) * | 2008-11-07 | 2012-04-05 | 株式会社松永製作所 | Six-wheeled stretcher |
| CN102665637A (en) * | 2009-11-13 | 2012-09-12 | 费诺-华盛顿公司 | Roll- in push cot |
| CN201831374U (en) * | 2010-08-25 | 2011-05-18 | 张国桢 | Foldable bed |
| CN103070748A (en) * | 2013-01-05 | 2013-05-01 | 江阴万事兴医疗器械有限公司 | Electric getting-on stretcher |
| CN105287115A (en) * | 2015-10-14 | 2016-02-03 | 江苏日新医疗设备有限公司 | Support leg gear locking device in getting-on stretcher |
| CN206138295U (en) * | 2016-08-26 | 2017-05-03 | 王杰 | Medical treatment is with collapsible first aid stretcher |
| CN108158732A (en) * | 2017-12-19 | 2018-06-15 | 东莞市联洲知识产权运营管理有限公司 | A kind of electronic folding stretcher of first aid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109009704A (en) | 2018-12-18 |
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Inventor after: Lu Haijun Inventor after: Ding Xiao Inventor after: Xu Mingjin Inventor after: Lin Shaoqi Inventor after: Yao Hong Inventor after: Yu Wanlu Inventor before: Lin Shaoqi Inventor before: Yao Hong Inventor before: Yu Wanlu |
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Effective date of registration: 20200213 Address after: 266003 Shandong city of Qingdao province Jiangsu City Road No. 16 Applicant after: Affiliated Hospital of University Of Qingdao Address before: 518000 Room 601, North Tower, Chao Hua mansion 1013, Dongmen street, Luohu District, Shenzhen, Guangdong. Applicant before: Shenzhen Cheng Lang Technology Co., Ltd. |
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