CN117695093A - First-aid stretcher for residential elevator - Google Patents

Abstract

The application discloses a residential elevator emergency stretcher relates to the technical field of medical equipment, and comprises three support frames and two locking assemblies, wherein the three support frames are divided into a first support frame, a second support frame and a third support frame, and the first support frame and the third support frame are respectively connected to two ends of the second support frame in a rotating way; the two locking components are respectively used for locking the first support frame and the third support frame, the locking components comprise a ratchet wheel, a first clamping block, a second clamping block and a first elastic piece, the ratchet wheel is arranged on the first support frame or the third support frame, the first clamping block and the second clamping block are both rotationally connected to the second support frame, the first elastic piece is connected between the second clamping block and the second support frame and is used for applying force to the second clamping block, the second clamping block locks the ratchet wheel to rotate unidirectionally, and the second clamping block can be driven to rotate when the first clamping block rotates so as to unlock or lock the ratchet wheel. The utility model has the advantages of reducing the limitation of the space to the use of the emergency stretcher, and improving the universality of the emergency stretcher.

Description

First-aid stretcher for residential elevator

Technical Field

The application relates to the technical field of medical equipment, in particular to a residential elevator emergency stretcher.

Background

The emergency stretcher is a medical instrument for transporting patients during patient rescue, and the length of the emergency stretcher is generally about two meters so as to adapt to the lying of the patients.

But the service environment of emergency stretcher is complicated, sometimes need transport the emergency stretcher to user's residence through home elevator, but home elevator size is limited, and elevator door width is generally less than eight hundred millimeters, and car length and width are both generally less than two thousand millimeters for emergency stretcher can't get into the car, thereby makes the use of emergency stretcher restricted.

Disclosure of Invention

In order to reduce the limitation of space to the use of emergency stretcher to improve emergency stretcher's commonality, this application provides a house elevator emergency stretcher.

The application provides a house elevator emergency stretcher, adopts following technical scheme:

a residential elevator emergency stretcher comprising:

the three support frames are divided into a first support frame, a second support frame and a third support frame, and the first support frame and the third support frame are respectively connected to two ends of the second support frame in a rotating way;

the locking assembly comprises a ratchet wheel, a first clamping block, a second clamping block and a first elastic piece, wherein the ratchet wheel is arranged on the first support frame or the third support frame, the first clamping block and the second clamping block are both rotationally connected to the second support frame, a first elastic piece is connected between the second clamping block and the second support frame and used for applying force to the second clamping block, the second clamping block locks the ratchet wheel to rotate unidirectionally, and the first clamping block can drive the second clamping block to rotate to unlock the ratchet wheel.

By adopting the technical scheme, the patient lies on the three supporting frames, so that the patient is transported. Before the emergency stretcher enters the elevator, the second clamping block locks the ratchet wheel, so that the first support frame and the third support frame can only rotate unidirectionally relative to the second support frame and are locked after rotation. When the emergency stretcher can not enter the elevator, the medical staff rotates the first clamping block, the first clamping block drives the second clamping block to rotate in the direction away from the ratchet wheel, so that the first elastic piece is subjected to compression deformation, the second clamping block unlocks the ratchet wheel, after the ratchet wheel is unlocked, the medical staff rotates the first supporting frame and the third supporting frame, so that the whole length of the emergency stretcher is shortened, the emergency stretcher can enter the elevator, a patient can lie on the emergency stretcher, and the universality of the emergency stretcher is improved.

Optionally, the locking component includes the third fixture block, the third fixture block rotates to be connected in the second support frame, and is connected with the second elastic component between the second support frame, the second elastic component is used for exerting force to the third fixture block for third fixture block locking ratchet unidirectional rotation, works as when the second fixture block locking ratchet, the third fixture block is to the ratchet unblock, when the third fixture block locking ratchet, the second fixture block is to the ratchet unblock, first fixture block sets up between second fixture block and third fixture block, first fixture block rotates and can make second fixture block locking ratchet or third fixture block locking ratchet.

Through adopting above-mentioned technical scheme, the second fixture block can restrict ratchet unidirectional rotation, and the third fixture block can restrict ratchet to another direction rotation to third fixture block unblock ratchet when the second fixture block locking ratchet, second fixture block unblock ratchet when the third fixture block locking ratchet, make the ratchet can only unidirectional rotation, first fixture block rotation can make the fixture block of conversion locking ratchet, thereby conversion ratchet can the pivoted direction, with the rotation direction of conversion first support frame or third support frame.

Optionally, the first fixture block is formed with first butt face and the second butt face of mutual slope towards second fixture block one end, the first fixture block is formed with the third butt face and the fourth butt face of mutual slope towards third fixture block one end, first butt face and third butt face mirror image set up, second butt face and fourth butt face mirror image set up.

By adopting the technical scheme, when the first abutting surface abuts against the second clamping block, the fourth abutting surface abuts against the third clamping block, and when the second abutting surface abuts against the second clamping block, the third abutting surface abuts against the third clamping block. The distance from the second clamping block to the center of the first clamping block is different from the distance from the third clamping block to the center of the first clamping block, so that the distance from the second clamping block to the ratchet wheel is different from the distance from the third clamping block to the ratchet wheel, and therefore when the ratchet wheel is locked by the second clamping block, the ratchet wheel is unlocked by the third clamping block, and when the ratchet wheel is locked by the third clamping block, the ratchet wheel is unlocked by the second clamping block.

Optionally, the device comprises a base frame, the second support frame is installed in the base frame and can move relative to the base frame, a connecting rod assembly is arranged between the base frame and the second support frame, and the connecting rod assembly is used for driving the second support frame to move towards a direction close to or far away from the base frame.

By adopting the technical scheme, the patient lies on the three supporting frames, so that the patient is transported. The second support frame can drive the first support frame and the third support frame to move towards the direction close to or far away from the base frame synchronously, so that the distance between the three support frames and the ground is convenient to adjust, and a patient is convenient to transfer to the three support frames. When the emergency stretcher is positioned in the ambulance, the distance between the three supporting frames and the base frame can be adjusted, so that the space in the ambulance is adapted.

Optionally, the connecting rod assembly comprises a first connecting rod and a second connecting rod which are crossed and are rotationally connected at the middle part;

the connecting rod assembly further comprises two third connecting rods arranged on the same side and two fourth connecting rods arranged on the same side, the two third connecting rods are respectively connected with one end of the first connecting rod and one end of the second connecting rod in a rotating mode, the third connecting rods corresponding to the first connecting rods are connected with the second supporting frame in a sliding mode, the third connecting rods corresponding to the second connecting rods are connected with the base frame in a sliding mode, the two fourth connecting rods are respectively connected with the other end of the first connecting rod and the other end of the second connecting rod in a rotating mode, the fourth connecting rods corresponding to the first connecting rods are connected with the base frame in a rotating mode, and the fourth connecting rods corresponding to the second connecting rods are connected with the second supporting frame in a rotating mode.

Through adopting above-mentioned technical scheme, first connecting rod and second connecting rod constitute and cut fork elevation structure, when first connecting rod and second connecting rod deviate from mutually and rotate, the second support frame moves towards keeping away from the bed frame direction to increase the distance between second support frame and the bed frame, when first connecting rod and second connecting rod rotate in opposite directions, the second support frame moves towards being close to the bed frame direction, thereby reduces the distance between second support frame and the bed frame.

Optionally, the link assembly includes drive assembly, drive assembly includes rocking arm, fifth connecting rod and sixth connecting rod, fifth connecting rod one end is rotated with the bed frame and is connected, the other end and the coaxial threaded connection of sixth connecting rod, sixth connecting rod is connected with first connecting rod, the coaxial worm wheel that is provided with of fifth connecting rod, the rocking arm is provided with the worm with worm wheel meshing.

By adopting the technical scheme, medical staff rotates the rocker arm, and the rocker arm drives the worm wheel on the fifth connecting rod to rotate through the worm, so that the fifth connecting rod is driven to rotate relative to the sixth connecting rod, and the whole length of the fifth connecting rod and the sixth connecting rod is increased or shortened due to the threaded connection of the fifth connecting rod and the sixth connecting rod. When the overall length of the fifth connecting rod and the sixth connecting rod is shortened, the third connecting rod moves towards the position close to the fifth connecting rod, so that the first connecting rod and the second connecting rod rotate away from each other to increase the distance between the second supporting frame and the base frame, and when the overall length of the fifth connecting rod and the sixth connecting rod is increased, the third connecting rod moves towards the direction away from the fifth connecting rod, so that the first connecting rod and the second connecting rod rotate towards each other to reduce the distance between the second supporting frame and the base frame.

Optionally, including four truckle assemblies, four truckle assemblies set up in the bed frame, the truckle assembly includes the bracing piece, bracing piece one end sets up in the bed frame, and the other end is provided with rotatable first truckle, the bracing piece is provided with rotatable second truckle between bed frame and first truckle.

Through adopting above-mentioned technical scheme, first truckle is used for with ground butt, and four first truckles can support first aid stretcher, and the first aid stretcher of being convenient for removes. When the emergency stretcher is put on an ambulance, the supporting rod can rotate to the second foot wheel to be abutted with the ambulance, so that the space occupied by the emergency stretcher is reduced, and the emergency stretcher is convenient to transport to the ambulance.

Optionally, four spacing grooves have been seted up to the bed frame correspondence bracing piece, and the spacing groove includes guiding groove and the draw-in groove of intercommunication, the bracing piece sets up in the bed frame and through locating part and spacing groove sliding connection, works as the bracing piece is located when the draw-in groove kept away from guiding groove one end, the bracing piece locking just is in the position of perpendicular to bed frame, works as the bracing piece is located when the guiding groove is kept away from draw-in groove one end, the bracing piece is in the position that is on a parallel with the bed frame.

Through adopting above-mentioned technical scheme, when the bracing piece is located draw-in groove and keeps away from guide way one end, the bracing piece locks and is in the position of following vertical direction perpendicular to bed frame, this moment first foot wheel and ground butt are applicable to the emergency elevator and remove subaerial, when the emergency stretcher transport to the ambulance, medical personnel in the ambulance lifts up the emergency stretcher and is close to ambulance one end, the bracing piece of this end removes to breaking away from the draw-in groove downwards under the action of gravity this moment, and enter the guide way, when the emergency stretcher removes in to the ambulance, the bracing piece rotates to second foot wheel and ambulance butt along the guide way, thereby the medical personnel of being convenient for carries the emergency stretcher to the ambulance.

Optionally, the limiting piece is slidably connected with the supporting rod, the sliding direction is the length direction of the supporting rod, and a third elastic piece is connected between the bottom of the limiting piece and the supporting rod;

a supporting rod is rotatably arranged above the limiting piece, and can rotate to be in contact with the limiting piece and push the limiting piece into the guide groove;

the device comprises a driving source, wherein the driving source is used for driving the abutting rod to rotate.

Through adopting above-mentioned technical scheme, when needs unblock, the drive source drive butt pole rotates to pushing away the locating part to the guide way, then rotates the bracing piece, and when needs locking bracing piece, the bracing piece rotates to perpendicular with the second support frame, then the third elastic component makes the locating part remove to the draw-in groove, locking bracing piece.

Optionally, the bed frame rotates and is connected with the guide rail, a plurality of locking grooves have been seted up along its length direction interval to the guide rail, first support frame fixedly connected with guide block, guide block and guide rail sliding fit, and can block into the locking groove to lock first support frame.

Through adopting above-mentioned technical scheme, the cooperation of locking groove and guide block can lock first support frame to improve the stability of first support frame.

In summary, the present application includes at least one of the following beneficial effects:

1. the patient lies on the three support frames, thereby transporting the patient. Before the emergency stretcher enters the elevator, the second clamping block locks the ratchet wheel, so that the first support frame and the third support frame can only rotate unidirectionally relative to the second support frame and are locked after rotation. When the emergency stretcher cannot enter the elevator, the medical staff rotates the first clamping block, the first clamping block drives the second clamping block to rotate in the direction away from the ratchet wheel, so that the first elastic piece is subjected to compression deformation, at the moment, the ratchet wheel is unlocked by the second clamping block, and after the ratchet wheel is unlocked, the medical staff rotates the first support frame and the third support frame, so that the whole length of the emergency stretcher is shortened, the emergency stretcher can enter the elevator, a patient can lie on the emergency stretcher, and the universality of the emergency stretcher is improved;

2. the second clamping block can limit the ratchet wheel to rotate unidirectionally, the third clamping block can limit the ratchet wheel to rotate towards the other direction, the third clamping block unlocks the ratchet wheel when the second clamping block locks the ratchet wheel, the second clamping block unlocks the ratchet wheel when the third clamping block locks the ratchet wheel, the ratchet wheel can only rotate unidirectionally, and the first clamping block rotates to enable the clamping block of the locking ratchet wheel to be converted, so that the direction in which the ratchet wheel can rotate is converted, and the rotating direction of the first support frame or the third support frame is converted;

3. the first casters are used for being abutted with the ground, and the four first casters can support the emergency stretcher, so that the emergency stretcher can be moved conveniently. When the emergency stretcher is put on an ambulance, the supporting rod can rotate to the second foot wheel to be abutted with the ambulance, so that the space occupied by the emergency stretcher is reduced, and the emergency stretcher is convenient to transport to the ambulance.

Drawings

FIG. 1 is a schematic overall structure of a first embodiment of the present application;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;

FIG. 3 is a partial schematic view of an embodiment of the present application showing a locking assembly;

fig. 4 is a schematic partial structure diagram of a first latch according to an embodiment of the present disclosure;

FIG. 5 is a schematic view showing the structure of a worm wheel and worm in an embodiment of the present application;

FIG. 6 is an enlarged partial schematic view at B in FIG. 5;

FIG. 7 is a schematic overall structure of a second embodiment of the present application

FIG. 8 is an enlarged partial schematic view at C in FIG. 7;

fig. 9 is a schematic structural view of a third elastic member according to a second embodiment of the present application.

Reference numerals illustrate: 1. a support frame; 11. a first support frame; 12. a second support frame; 13. a third support frame; 2. a base frame; 21. a limit groove; 211. a guide groove; 212. a clamping groove; 22. a chute; 3. a locking assembly; 31. a ratchet wheel; 32. a first clamping block; 321. a first abutment surface; 322. a second abutment surface; 323. a third abutment surface; 324. a fourth abutment surface; 33. a second clamping block; 34. a third clamping block; 35. a first elastic member; 36. a second elastic member; 4. a connecting rod assembly; 41. a first link; 42. a second link; 43. a third link; 44. a fourth link; 45. a fifth link; 46. a sixth link; 47. a worm wheel; 48. a worm; 5. a rocker arm; 6. a caster assembly; 61. a support rod; 62. a limiting piece; 63. a first caster; 64. a second caster; 71. a third elastic member; 72. a butt joint rod; 73. a driving source; 74. a guide rail; 75. a guide block; 76. locking grooves.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

Example 1

The embodiment of the application discloses a house elevator first aid stretcher, refer to fig. 1 and 2, house elevator first aid stretcher includes two locking component 3 and three support frame 1, and three support frame 1 is square pipe concatenation rectangular frame that forms, and three support frame 1 divide into first support frame 11, second support frame 12 and third support frame 13. The first supporting frame 11 and the third supporting frame 13 are respectively connected to two ends of the second supporting frame 12 in a rotating manner, and the two locking assemblies 3 are respectively used for locking the first supporting frame 11 and the third supporting frame 13, and the first supporting frame 11 and the corresponding locking assemblies 3 are taken as an example for illustration because the structures and the working principles of the two locking assemblies 3 are the same.

Referring to fig. 2, the locking assembly 3 includes a ratchet 31, the ratchet 31 is coaxially and fixedly connected to the first support frame 11, the second support frame 12 is rotatably connected with a first clamping block 32, a second clamping block 33 and a third clamping block 34, the first clamping block 32 is located between the second clamping block 33 and the third clamping block 34, and a knob is coaxially and fixedly connected with the knob, and the knob is convenient for a medical staff to rotate the first clamping block 32.

Referring to fig. 3 and 4, a first abutting surface 321 and a second abutting surface 322 which are inclined to each other are formed at one end of the first clamping block 32 close to the second clamping block 33, the first abutting surface 321 and the second abutting surface 322 can both abut against the second clamping block 33, a third abutting surface 323 and a fourth abutting surface 324 which are inclined to each other are formed at one end of the first clamping block 32 close to the third clamping block 34, the third abutting surface 323 and the fourth abutting surface 324 can both abut against the third clamping block 34, the third abutting surface 323 and the first abutting surface 321 are in mirror image arrangement, the fourth abutting surface 324 and the second abutting surface 322 are in mirror image arrangement, an included angle formed by the first abutting surface 321 and the fourth abutting surface 324 is an acute angle, and an included angle formed by the second abutting surface 322 and the third abutting surface 323 is an acute angle. A first elastic piece 35 is connected between the second clamping block 33 and the second supporting frame 12, the first elastic piece 35 is a spring, a second elastic piece 36 is connected between the third clamping block 34 and the second supporting frame 12, and the second elastic piece 36 is a spring.

In the embodiment of the present application, the two locking assemblies 3 are arranged in a mirror image, and the ratchet wheel 31 of the locking assembly 3 corresponding to the second supporting frame 12 is fixedly connected with the second supporting frame 12 coaxially.

The second clamping block 33 and the third clamping block 34 are respectively used for locking the ratchet 31 to rotate unidirectionally in different directions, when the first abutting surface 321 abuts against the second clamping block 33, the compression deformation of the first elastic piece 35 is smaller, so that the second clamping block 33 is matched with the ratchet of the ratchet 31 in a clamping way, and the fourth abutting surface 324 abuts against the third clamping block 34, the compression deformation of the second elastic piece 36 is larger, so that the third clamping block 34 is not matched with the ratchet of the ratchet 31 in a clamping way, and the second clamping block 33 locks the ratchet 31 to rotate unidirectionally, so that the first supporting frame 11 can rotate unidirectionally. When the first clamping block 32 rotates, the second abutting surface 322 can be abutted with the second clamping block 33, the first elastic piece 35 is larger in compression deformation, the second clamping block 33 is not matched with the ratchet of the ratchet wheel 31 in a clamping mode, the third abutting surface 323 is abutted with the third clamping block 34, the second elastic piece 36 is smaller in compression deformation, the third clamping block 34 is matched with the ratchet of the ratchet wheel 31 in a clamping mode, and therefore the ratchet wheel 31 is locked by the third clamping block 34 to rotate in a unidirectional mode.

The included angle formed by the first abutting surface 321 and the fourth abutting surface 324 and the included angle formed by the second abutting surface 322 and the third abutting surface 323 are acute angles, so that when the second clamping block 33 locks the ratchet wheel 31, the first elastic member 35 is used for applying a force for locking the ratchet wheel 31 to the second clamping block 33, the second elastic member 36 is used for applying a force for locking the first clamping block 32 to the first clamping block 32 through the third clamping block 34, when the third clamping block 34 locks the ratchet wheel 31, the second elastic member 36 is used for applying a force for locking the ratchet wheel 31 to the third clamping block 34, and the first elastic member 35 is used for applying a force for locking the first clamping block 32 to the first clamping block 32 through the second clamping block 33, so that the first clamping block 32 can be self-locked.

When the whole length of the emergency stretcher needs to be adjusted, a medical staff rotates the knob to change the clamping block of the locking ratchet wheel 31, so that the corresponding supporting frame 1 can rotate in different directions and be self-locked, the whole length of the emergency stretcher is increased or reduced to adapt to the space of the residential elevator, the emergency stretcher can enter the residential elevator and transport patients, the space limitation of the emergency stretcher to the use environment is reduced, and the universality of the emergency stretcher is improved.

Referring to fig. 5, the residential elevator emergency stretcher includes a base frame 2 and a link assembly 4, the base frame 2 is disposed under a second support frame 12, and is connected with the second support frame 12 through the link assembly 4. The link assembly 4 comprises a first link 41 and a second link 42, the first link 41 and the second link 42 are arranged in a crisscross manner, the middle position is rotationally connected, one end of the first link 41 is rotationally connected with a third link 43, the third link 43 is slidingly connected with the base frame 2, the other end is rotationally connected with a fourth link 44, the fourth link 44 is rotationally connected with the second support frame 12, one end, close to the third link 43, of the second link 42 is rotationally connected with a third link 43, the third link 43 is slidingly connected with the second support frame 12, one end, close to the fourth link 44, of the second link 42 is rotationally connected with a fourth link 44, and the fourth link 44 is rotationally connected with the base frame 2. In the embodiment of the present application, the first connecting rod 41 and the second connecting rod 42 are mirror images of each other, so that the two first connecting rods 41 are rotatably connected to two ends of the same third connecting rod 43 and two ends of the same fourth connecting rod 44, and the two second connecting rods 42 are rotatably connected to two ends of the same third connecting rod 43 and two ends of the same fourth connecting rod 44.

Referring to fig. 5, the link assembly 4 includes a fifth link 45 and a sixth link 46 coaxially and threadedly connected, one end of the fifth link 45 is rotatably connected with the base frame 2, and the fifth link 45 is coaxially and fixedly connected with a worm wheel 47, one end of the sixth link 46 is rotatably connected with the third link 43, the worm wheel 47 is engaged and matched with a worm 48, the worm 48 is coaxially and fixedly connected with a rocker arm 5, and the rocker arm 5 is rotatably connected with the base frame 2.

The first connecting rod 41 and the second connecting rod 42 form a scissor telescopic mechanism, when the rocker arm 5 rotates, the fifth connecting rod 45 can be driven to rotate relative to the sixth connecting rod 46 through the cooperation of the worm wheel 47 and the worm 48, and the sixth connecting rod 46 drives the third connecting rod 43 to move towards the direction approaching or far away from the fifth connecting rod 45 due to the fact that the fifth connecting rod 45 is in threaded connection with the sixth connecting rod 46. When the third connecting rod 43 moves towards the direction approaching to the fifth connecting rod 45, the first connecting rod 41 and the second connecting rod 42 rotate away from each other, so that the second supporting frame 12 drives the first supporting frame 11 and the second supporting frame 12 to move towards the direction approaching to the base frame 2, thereby increasing the height of the three supporting frames 1, and when the third connecting rod 43 moves towards the direction approaching to the fifth connecting rod 45, the first connecting rod 41 and the second connecting rod 42 rotate towards each other, so that the second supporting frame 12 drives the first supporting frame 11 and the third supporting frame 13 to move towards the direction approaching to the base frame 2, thereby reducing the height of the three supporting frames 1.

When carrying a patient, the healthcare worker rotates the swing arm 5 so that the three support frames 1 are moved to a height close to the patient, thereby facilitating the transfer of the patient to the stretcher or the removal of the patient from the stretcher. When the three supporting frames 1 move towards the direction close to the base frame 2, the overall height of the emergency stretcher can be reduced, so that the space occupied by the emergency stretcher is reduced.

Referring to fig. 5 and 6, the four corners of the base frame 2 are provided with the caster assemblies 6, four limit grooves 21 and four sliding grooves 22 are provided corresponding to the caster assemblies 6, the sliding grooves 22 are provided above the limit grooves 21 along the direction perpendicular to the base frame 2, the limit grooves 21 comprise communicated clamping grooves 212 and guide grooves 211, the clamping grooves 212 are provided below the sliding grooves 22 along the direction perpendicular to the base frame 2, the length directions of the clamping grooves 212 are collinear with the length directions of the sliding grooves 22, the guide grooves 211 are arc-shaped and are arranged around the sliding grooves 22, and one ends of the guide grooves 211 are communicated with one ends of the clamping grooves 212 in the direction away from the second support frame 12. The caster assembly 6 includes a support rod 61, one end of the support rod 61 is slidably matched with the chute 22, the other end of the support rod 61 is provided with a first caster 63 capable of rotating, the first caster 63 is a universal wheel, the support rod 61 is provided with a limiting piece 62, the limiting piece 62 is cylindrical, the support rod 61 is slidably matched with the limiting groove 21 through the limiting piece 62, the support rod 61 is provided with a second caster 64 capable of rotating, the four second casters 64 are respectively arranged on the same side of the corresponding support rod 61, and the second caster 64 is a roller.

When the emergency stretcher moves on the ground, one end of the supporting rod 61 is positioned at the upward end of the chute 22, and the limiting piece 62 is abutted with the inner wall of the upward end of the clamping groove 212, so that the supporting rod 61 is locked, the first foot wheel 63 is abutted with the ground, and the emergency stretcher can move on the ground conveniently. When the emergency stretcher needs to be carried to the ambulance, medical staff in the ambulance lifts the emergency stretcher to be close to one end of the ambulance, the corresponding supporting rod 61 moves downwards under the action of gravity, the limiting block moves to the guide groove 211 along the clamping groove 212, when the emergency stretcher is carried to the direction close to the ambulance by the medical staff in the ambulance, the supporting rod 61 is abutted with the ambulance, and rotates to the second foot wheel 64 along the guide groove 211 to be abutted with the ambulance, so that the movement of the subsequent emergency stretcher is facilitated, the overall height of the emergency stretcher is reduced, the space occupied by the emergency stretcher is reduced, and the movement of the emergency stretcher in the ambulance is facilitated.

The implementation principle of the residential elevator emergency stretcher provided by the embodiment of the application is as follows: the patient lies on the three support frames 1, so that the patient is transported. Before the emergency stretcher enters the elevator, the locking component 3 locks the corresponding support frame 1, so that the support frame 1 is not easy to rotate downwards under the action of gravity. When the emergency stretcher cannot enter the elevator, the medical staff rotates the first supporting frame 11 and the second supporting frame 12, so that the whole length of the emergency stretcher is reduced, the emergency stretcher can enter the elevator, a patient can lie on the emergency stretcher, and the universality of the emergency stretcher is improved.

Embodiment two:

referring to fig. 7 and 8, the difference between the present embodiment and other embodiments is that the base frame 2 is rotatably connected with an inclined guide rail 74 near the first supporting frame 11, the guide rail 74 is provided with a plurality of locking grooves 76 at intervals along the length direction thereof, the locking grooves 76 are opened obliquely to the length direction of the guide rail 74, the guide rail 74 is slidably connected with a guide block 75 along the length direction thereof, the guide block 75 is cylindrical and can be inserted into the locking grooves 76, and the guide block 75 is fixedly connected with the first supporting frame 11.

The guide blocks 75 can be clamped into the locking grooves 76 under the action of gravity, so that the support rods 61 can be self-locked after rotating, and the stability of locking the support rods 61 is improved. When the support rod 61 needs to rotate, the support rod 61 is lifted up, the guide block 75 moves to be separated from the locking groove 76, the guide block 75 can slide along the length direction of the guide rail 74, and the guide rail 74 is arranged in a rotating way, so that the support rod 61 can rotate relative to the second support frame 12.

Referring to fig. 7 and 9, a third elastic member 71 is connected between the bottom of the limiting member 62 and the supporting rod 61, the third elastic member 71 is a spring, the supporting rod 61 above the limiting member 62 is rotatably connected with a supporting rod 72, and the length of the supporting rod 72 can enable the supporting rod 72 to rotate to push the limiting member 62 into the guiding groove 211. The third support frame 13 is provided with a driving source 73, the driving source 73 is a hand brake, and the output end of the hand brake can rotate and is connected with the abutting rod 72.

When the emergency stretcher is put on an ambulance, a medical staff controls the abutting rod 72 to rotate through the hand brake, so that the abutting rod 72 pushes the limiting piece 62 into the guide groove 211, the elastic piece is compressed and deformed at the moment, and meanwhile, the medical staff rotates the supporting rod 61 by feet, so that the supporting rod 61 rotates to the second foot wheel 64 to abut against the ambulance. Thereby facilitating the first-aid stretcher to be carried to the ambulance.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A residential elevator emergency stretcher, characterized in that: comprising the following steps:

the three support frames (1), the three support frames (1) are divided into a first support frame (11), a second support frame (12) and a third support frame (13), and the first support frame (11) and the third support frame (13) are respectively connected to two ends of the second support frame (12) in a rotating mode;

the locking assembly (3) is used for locking the first support frame (11) and the third support frame (13) respectively, the locking assembly (3) comprises a ratchet wheel (31), a first clamping block (32), a second clamping block (33) and a first elastic piece (35), the ratchet wheel (31) is arranged on the first support frame (11) or the third support frame (13), the first clamping block (32) and the second clamping block (33) are both rotationally connected to the second support frame (12), a first elastic piece (35) is connected between the second clamping block (33) and the second support frame (12), the first elastic piece (35) is used for applying force to the second clamping block (33), the second clamping block (33) is used for locking the ratchet wheel (31) to rotate unidirectionally, and the first clamping block (32) can drive the second clamping block (33) to rotate when rotating so as to unlock or lock the ratchet wheel (31).

2. A residential elevator emergency stretcher according to claim 1, characterized in that: the locking assembly (3) comprises a third clamping block (34), the third clamping block (34) is rotationally connected to the second supporting frame (12), a second elastic piece (36) is connected between the third clamping block and the second supporting frame (12), the second elastic piece (36) is used for applying force to the third clamping block (34) so that the third clamping block (34) locks the ratchet wheel (31) to rotate unidirectionally, when the second clamping block (33) locks the ratchet wheel (31), the third clamping block (34) unlocks the ratchet wheel (31), when the third clamping block (34) locks the ratchet wheel (31), the second clamping block (33) unlocks the ratchet wheel (31), the first clamping block (32) is arranged between the second clamping block (33) and the third clamping block (34), and the first clamping block (32) rotates so that the second clamping block (33) locks the ratchet wheel (31) or the third clamping block (34) locks the ratchet wheel (31).

3. A residential elevator emergency stretcher according to claim 2, characterized in that: first fixture block (32) are formed with first butt face (321) and second butt face (322) of mutual slope towards second fixture block (33) one end, first fixture block (32) are formed with third butt face (323) and fourth butt face (324) of mutual slope towards third fixture block (34) one end, first butt face (321) and third butt face (323) mirror image setting, second butt face (322) and fourth butt face (324) mirror image setting.

4. A residential elevator emergency stretcher according to claim 1, characterized in that: including bed frame (2), second support frame (12) are installed in bed frame (2) and can remove relative bed frame (2), be provided with link assembly (4) between bed frame (2) and second support frame (12), link assembly (4) are used for driving second support frame (12) to be close to or keep away from bed frame (2) direction removal.

5. The residential elevator emergency stretcher of claim 4, wherein:

the connecting rod assembly (4) comprises a first connecting rod (41) and a second connecting rod (42) which are crossed and are rotationally connected at the middle position;

the connecting rod assembly (4) further comprises two third connecting rods (43) arranged on the same side and two fourth connecting rods (44) arranged on the same side, the two third connecting rods (43) are respectively connected with one end of the first connecting rod (41) and one end of the second connecting rod (42) in a rotating mode, the third connecting rods (43) corresponding to the first connecting rod (41) are connected with the second supporting frame (12) in a sliding mode, the third connecting rods (43) corresponding to the second connecting rods (42) are connected with the base frame (2) in a sliding mode, the two fourth connecting rods (44) are respectively connected with the other end of the first connecting rod (41) and the other end of the second connecting rod (42) in a rotating mode, and the fourth connecting rods (44) corresponding to the first connecting rods (41) are connected with the base frame (2) in a rotating mode.

6. The residential elevator emergency stretcher of claim 5, wherein: the connecting rod assembly (4) comprises a driving assembly, the driving assembly comprises a rocker arm (5), a fifth connecting rod (45) and a sixth connecting rod (46), one end of the fifth connecting rod (45) is rotationally connected with the base frame (2), the other end of the fifth connecting rod is coaxially connected with the sixth connecting rod (46) in a threaded mode, the sixth connecting rod (46) is connected with the first connecting rod (41), a worm wheel (47) is coaxially arranged on the fifth connecting rod (45), and a worm (48) meshed with the worm wheel (47) is arranged on the rocker arm (5).

7. A residential elevator emergency stretcher according to claim 1, characterized in that: including four truckle subassembly (6), four truckle subassembly (6) set up in bed frame (2), truckle subassembly (6) include bracing piece (61), bracing piece (61) one end rotation is connected in bed frame (2), and the other end is provided with rotatable first truckle (63), bracing piece (61) are provided with rotatable second truckle (64) between bed frame (2) and first truckle (63).

8. The residential elevator emergency stretcher of claim 7, wherein: four spacing grooves (21) have been seted up to bed frame (2) corresponding bracing piece (61), and spacing groove (21) are including guiding groove (211) and draw-in groove (212) of intercommunication, bracing piece (61) rotate connect in bed frame (2) and through locating part (62) and spacing groove (21) sliding connection, work as bracing piece (61) are located draw-in groove (212) and keep away from guiding groove (211) one end, bracing piece (61) lock and be in the position of perpendicular to bed frame (2), work as bracing piece (61) are located when guiding groove (211) keep away from draw-in groove (212) one end, bracing piece (61) are in the position that is on a parallel with bed frame (2).

9. The residential elevator emergency stretcher of claim 8, wherein: the limiting piece (62) is in sliding connection with the supporting rod (61), the sliding direction is the length direction of the supporting rod (61), and a third elastic piece (71) is connected between the bottom of the limiting piece (62) and the supporting rod (61);

a supporting rod (72) is rotatably arranged above the limiting piece (62), and the supporting rod (72) can rotate to be in contact with the limiting piece (62) and push the limiting piece (62) into the guide groove (211);

comprises a driving source (73), wherein the driving source (73) is used for driving the abutting rod (72) to rotate.

10. A residential elevator emergency stretcher according to claim 1, characterized in that: the base frame (2) is rotationally connected with a guide rail (74), a plurality of locking grooves (76) are formed in the guide rail (74) along the length direction at intervals, the first support frame (11) is fixedly connected with a guide block (75), the guide block (75) is in sliding fit with the guide rail (74), and the guide block can be clamped into the locking grooves (76) to lock the first support frame (11).