CN114795724A

CN114795724A - Quick-unfolding medical bed carried outside

Info

Publication number: CN114795724A
Application number: CN202210256200.8A
Authority: CN
Inventors: 况敏飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-07-29

Abstract

The invention relates to a medical bed, in particular to a quick-unfolding medical bed which is carried out. The invention provides a quick unfolding medical bed which can be unfolded and folded quickly and conveniently and is carried out more stably in use. The invention provides a portable quick-unfolding medical bed which comprises two first fixing plates, two first universal wheels, a first bed and the like, wherein the two first universal wheels are rotatably arranged at the lower sides of the two first fixing plates respectively, the two first universal wheels are arranged in a bilateral symmetry manner, and the first bed is connected between the upper sides of the two first fixing plates. The second bed is clamped through the limiting rod, so that the second bed can be prevented from being accidentally opened when being folded, the first connecting rod is pushed, the first rack is meshed with the first pinion, the second bed can be rapidly and conveniently unfolded and folded, and the first contact block is clamped through the clamping plate to enable the second bed to be more stable when being unfolded.

Description

Quick-unfolding medical bed carried outside

Technical Field

The invention relates to a medical bed, in particular to a quick-unfolding medical bed which is carried out.

Background

In hospitals, a hospital bed is a device for supporting the body of a patient so that the patient can better take a rest, and there are some hospital beds equipped with universal wheels for emergency patient transportation in case of emergency. The existing hospital beds are generally simple in design, and when a patient needs to be transported outdoors, a foldable stretcher and a large moving bed are generally used for transporting the patient.

Be CN210205147U according to the patent publication number of granting, the announcement day is 20200331's a multi-functional electronic folding medical bed, its structure includes side anti-falling device, the medical bed frame, the bracing piece, the gyro wheel reference column, the gyro wheel, link up the frame, the locating plate, electronic folding medical bed, the backup plate, side anti-falling device locates medical bed frame outer wall and is connected through the pivoted mode, the medical bed frame welds in the bracing piece upper end, the gyro wheel is located gyro wheel reference column lower extreme and is connected through the pivoted mode, the backup plate left is located and be parallel to each other to the locating plate, electronic folding medical bed embedding is installed in medical bed frame upper end and is connected through the mode of activity, the piston rod drives the sealed piston piece that is connected. This multi-functional electronic folding medical bed though passes through, prevents weighing down to be equipped with in the baffle and to accomodate the automatic structure that stretches out with the back cushion for the back cushion can stretch out and draw back and pack up, reaches folding effect through electronic folding medical bed, but uses at the in-process that uses needs the circular telegram, uses less stably, and can't expand and fold the medical bed fast conveniently.

According to the defects in the prior art, the rapidly unfolded medical bed which can be unfolded and folded rapidly and conveniently and is more stable to carry out in use is designed.

Disclosure of Invention

In order to overcome the defects that the prior art needs to be electrified for use, is not stable in use and cannot be used for unfolding and folding the medical bed quickly and conveniently, the invention aims to solve the technical problem of providing the quick unfolding medical bed which can be unfolded and folded quickly and conveniently and is more stable to carry when being used.

In order to solve the technical problem, the invention provides a portable quick-unfolding medical bed which comprises two first fixing plates, first universal wheels, a first bed, connecting shafts, a second bed, a turnover mechanism and a limiting mechanism, wherein the two first fixing plates are rotatably provided with the two first universal wheels which are arranged in a bilateral symmetry mode at the lower sides of the two first fixing plates, the first bed is connected between the upper sides of the two first fixing plates, the right part of the first bed is rotatably provided with the two connecting shafts which are arranged in a front-back symmetry mode, the second bed is sleeved between the two connecting shafts, and the turnover mechanism for quickly unfolding the second bed and the limiting mechanism for fixing the second bed are arranged on the first bed.

Preferably, the turnover mechanism comprises a first fixed block, a handle, a first connecting rod and a first contact block, the cardboard, the second connecting rod, first rack and first pinion, two connecting axle one that leave is served and all overlaps and is equipped with first pinion, the equal slidingtype both sides have run through the second connecting rod around the first bed right part, second connecting rod right part upside is connected with can with first rack of first pinion meshing, bilateral symmetry formula is equipped with the first fixed block that is used for the direction around the first bed left part, articulated formula runs through the head rod that has and links to each other with the second connecting rod rotary type on the first fixed block, head rod left end upside is connected with the handle that is used for the gripping, head rod left part cover is equipped with first contact block, bilateral symmetry formula is equipped with the cardboard that is used for blocking first contact block around the first bed left part, the cardboard is located first fixed block left.

Preferably, stop gear is including the second contact piece, the second fixed block, gag lever post and first spring, bilateral symmetry formula is equipped with the second fixed block that is located the cardboard left side around the first bed left part, the gag lever post that is used for blocking the second bed is run through to second fixed block upper portion slidingtype, be connected with first spring between gag lever post and the second fixed block, the cover of first connecting rod left part is equipped with the second contact piece that is used for promoting the gag lever post to remove, the second contact piece is located first contact piece left.

Preferably, the lifting mechanism is used for lifting the height of the bed, the lifting mechanism comprises a second fixing plate, a cylinder, a third connecting rod, a second rack, a second flat gear, a magnetic connecting frame, a fourth connecting rod and a second universal wheel, the second fixing plate is symmetrically arranged on the separated side of the first bed and the second bed, the magnetic connecting frame is magnetically adsorbed on the separated side of the two second fixing plates, the second flat gear which is symmetrically arranged back and forth is rotatably arranged on the left side and the right side of the magnetic connecting frame and the left side of the second fixing plate, the fourth connecting rod is connected to the second flat gear, the adjacent two fourth connecting rods are rotatably connected, the third connecting rod is slidably arranged on the left side and the right side of the middle part of the second fixing plate and the magnetic connecting frame, the front side and the rear side of the third connecting rod are respectively connected with the second rack which is meshed with the adjacent second flat gear, the cylinders are arranged on the left inner side and the right side of the second fixing plate, the telescopic link of cylinder links to each other with adjacent third connecting rod, and the equal rotary type in magnetism link left and right sides is equipped with two second universal wheels that are symmetrical formula setting from beginning to end.

Preferably, still including the protection mechanism who is used for protecting the patient, protection mechanism is equipped with first dead lever including first dead lever, limiting plate and second spring, bilateral symmetry formula around the first bed middle part, and first dead lever middle part slidingtype cover is equipped with the limiting plate that is blocked by the second bed, is connected with the second spring between limiting plate and the first dead lever.

Preferably, still including being used for supporting the mechanism of supporting of second bed, support the mechanism including the backup pad, the kelly, the third spring, the fifth connecting rod, elastic block and contact lever, first bed right part lower side is connected with the backup pad, both sides are all slided type around the backup pad and are run through the kelly that is used for supporting, be connected with the third spring between kelly and the backup pad, the symmetrical formula is equipped with the fifth connecting rod on the one side that two kelly left parts leave, first fixed plate upside is connected with the elastic block that is used for blocking the fifth connecting rod, second connecting rod downside is connected with the contact lever that is used for promoting the removal of fifth connecting rod.

Preferably, still including the mechanism of taking that is used for making things convenient for the gripping, the mechanism of taking is equipped with the third fixed block including third fixed block, second dead lever and sixth connecting rod, the equal bilateral symmetry formula in both sides around the first bed bottom, and it has the second dead lever to run through between two symmetrical third fixed blocks, and second dead lever right part slidingtype runs through has the sixth connecting rod.

Preferably, the outer sides of the second fixing rod and the sixth connecting rod are both sleeved with anti-slip rubber.

On the basis of overcoming the defects of the prior art, the invention can also achieve the following beneficial effects:

1. the second bed is clamped through the limiting rod, so that the second bed can be prevented from being accidentally opened when being folded, the first connecting rod is pushed, the first rack is meshed with the first pinion, the second bed can be rapidly and conveniently unfolded and folded, and the first contact block is clamped through the clamping plate to enable the second bed to be more stable when being unfolded.

2. The starting cylinder is extended, the first bed and the second bed can be moved upwards through the extension of the fourth connecting rod, so that the heights of the first bed and the second bed can be adjusted, and further more conveying environments can be adapted.

3. When the patient lies flat on first bed and second bed, the limiting plate can remove with the direction that is close to the patient always under the effect that the second spring resets, has played the effect of protection to the patient through the limiting plate.

4. When the second bed is unfolded, the clamping rod can rapidly extend out to support the second bed under the action of the third spring reset, so that the gravity of a patient can be balanced, and the patient can be more stably conveyed.

5. The medical bed can be lifted up by grabbing the second fixing rod and the sixth connecting rod, so that the emergency transportation of a patient is facilitated, the sixth connecting rod is retracted into the second fixing rod, and the occupied space can be reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the turnover mechanism of the present invention.

Fig. 3 is a schematic perspective view of the limiting mechanism of the present invention.

Fig. 4 is a schematic perspective view of the lifting mechanism of the present invention.

Fig. 5 is a schematic perspective view of the protection mechanism of the present invention.

Fig. 6 is a schematic perspective view of a part of the lifting mechanism of the present invention.

Fig. 7 is a schematic perspective view of the abutting mechanism of the present invention.

Fig. 8 is a partial perspective view of the resisting mechanism of the present invention.

Fig. 9 is a schematic perspective view of the picking mechanism of the present invention.

The labels in the figures are: 1-a first fixing plate, 2-a first universal wheel, 3-a first bed, 4-a connecting shaft, 5-a second bed, 6-a turnover mechanism, 61-a first fixing block, 62-a handle, 63-a first connecting rod, 64-a first contact block, 65-a clamping plate, 66-a second connecting rod, 67-a first rack, 68-a first pinion, 7-a limiting mechanism, 71-a second contact block, 72-a second fixing block, 73-a limiting rod, 74-a first spring, 8-a lifting mechanism, 81-a second fixing plate, 82-a cylinder, 83-a third connecting rod, 84-a second rack, 85-a second pinion, 86-a magnetic connecting frame, 87-a fourth connecting rod, 88-a second universal wheel, 9-protection mechanism, 91-first fixed rod, 92-limiting plate, 93-second spring, 10-abutting mechanism, 101-supporting plate, 102-clamping rod, 103-third spring, 104-fifth connecting rod, 105-elastic block, 106-contact rod, 11-taking mechanism, 111-third fixed block, 112-second fixed rod and 113-sixth connecting rod.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

The utility model provides a quick expansion medical bed of going out to carry, as shown in fig. 1-3, including first fixed plate 1, first universal wheel 2, first bed 3, connecting axle 4, second bed 5, tilting mechanism 6 and stop gear 7, first fixed plate 1 is equipped with two, two equal rotary types of 1 downside of first fixed plate are equipped with two first universal wheels 2, two first universal wheels 2 are bilateral symmetry formula setting, the first bed 3 of pegging graft between two 1 upsides of first fixed plate, 3 right part rotary type of first bed is equipped with two connecting axles 4, two connecting axles 4 are symmetrical formula setting from beginning to end, the cover is equipped with second bed 5 between two connecting axles 4, be provided with tilting mechanism 6 and stop gear 7 on the first bed 3.

As shown in fig. 2, the turnover mechanism 6 includes a first fixing block 61, a handle 62, a first connecting rod 63, a first contact block 64, a clamping plate 65, a second connecting rod 66, a first rack 67 and a first pinion 68, wherein the two ends of the connecting shafts 4 which are separated from each other are respectively sleeved with the first pinion 68, the front and rear sides of the right part of the first bed 3 are respectively penetrated with the second connecting rod 66 in a sliding manner, the upper side of the right part of the second connecting rod 66 is connected with the first rack 67 in a bolting manner, the first rack 67 can be engaged with the first pinion 68, the front and rear sides of the left part of the first bed 3 are symmetrically welded with the first fixing block 61, the first connecting rod 63 is penetrated on the first fixing block 61 in a hinged manner, the first connecting rod 63 is rotatably connected with the second connecting rod 66, the handle 62 is welded on the upper side of the left end of the first connecting rod 63, the left part of the first contact block 64 is sleeved on the left part of the first connecting rod 63, the clamping plate 65 is symmetrically arranged on the front and rear sides of the left part of the first bed 3, the chucking plate 65 is located leftward of the first fixing block 61.

As shown in fig. 3, the limiting mechanism 7 includes a second contact block 71, a second fixing block 72, a limiting rod 73 and a first spring 74, the second fixing block 72 is bolted symmetrically to the front and rear sides of the left portion of the first bed 3, the second fixing block 72 is located on the left side of the clamping plate 65, the limiting rod 73 is slidably penetrated through the upper portion of the second fixing block 72, the first spring 74 is connected between the limiting rod 73 and the second fixing block 72, the second contact block 71 is sleeved on the left portion of the first connecting rod 63, and the second contact block 71 is located on the left side of the first contact block 64.

Initially, the second bed 5 is clamped by the limiting rod 73, the medical bed is in a folded state, the operator drives the first connecting rod 63 to rotate through the handle 62, the first connecting rod 63 drives the first contact block 64 and the second contact block 71 to rotate, the second contact block 71 rotates to push the limiting rod 73 to move to release the second bed 5, the first spring 74 is compressed, the first contact block 64 rotates to release the clamping plate 65, at the same time, the operator drives the first connecting rod 63 to move rightwards through the handle 62, the first connecting rod 63 drives the first rack 67 to move rightwards through the second connecting rod 66 to be meshed with the first pinion 68, the first pinion 68 drives the second bed 5 to rotate through the connecting shaft 4, the first fixing plate 1 supports the second bed 5 to rapidly unfold the second bed 5, meanwhile, the first connecting rod 63 drives the second contact block 71 to release the limiting rod 73 to move rightwards, the first spring 74 is reset, the limiting rod 73 is reset in a reverse movement mode under the left and right reset of the first spring 74, then the operator drives the first connecting rod 63 to reversely rotate through the handle 62, the first connecting rod 63 drives the first contact block 64 to reversely rotate and be clamped on the clamping plate 65, the second bed 5 can be clamped, the medical bed is in an unfolded state at the moment, then the patient lies on the first bed 3 and the second bed 5 flatly, the operator pushes the medical bed through the handle 62, the first universal wheel 2 can move in an auxiliary mode, the patient can be conveyed in an emergency mode, after the operation of conveying the patient is completed, the operator drives the first contact block 64 to rotate and be separated from the clamping plate 65 through the first connecting rod 63, then the limiting rod 73 is moved in a direction away from the second bed 5, the first spring 74 is compressed, the operator drives the second connecting rod 66 to move leftwards through the first connecting rod 63, the second connecting rod 66 can drive the first rack 67 to move leftwards and then be meshed with the first pinion 68, the first pinion 68 drives the second bed 5 to rotate reversely through the connecting shaft 4, so that the second bed 5 is rapidly folded, then the operator drives the first connecting rod 63 to rotate reversely through the handle 62, the first connecting rod 63 can drive the first contact block 64 to rotate reversely and then be clamped on the clamping plate 65, the operator releases the limiting rod 73 again, the first spring 74 resets, the limiting rod 73 moves reversely under the reset effect of the first spring 74 to clamp the second bed 5, and therefore the medical bed can enter the folding state again.

Example 2

In addition to the embodiment 1, as shown in fig. 1, 5 and 6, the lifting mechanism 8 further comprises a lifting mechanism 8, the lifting mechanism 8 comprises a second fixing plate 81, a cylinder 82, a third connecting rod 83, a second rack 84, a second flat gear 85, a magnetic connecting frame 86, a fourth connecting rod 87 and a second universal wheel 88, the second fixing plate 81 is symmetrically bolted on the side where the first bed 3 and the second bed 5 are separated, the magnetic connecting frame 86 is magnetically attracted on the side where the two second fixing plates 81 are separated, the two second flat gears 85 are rotatably arranged on the left and right sides of the magnetic connecting frame 86 and the second fixing plate 81, the two second flat gears 85 are symmetrically arranged in the front and back direction, the fourth connecting rod 87 is bolted on the second flat gears 85, the two adjacent fourth connecting rods 87 are rotatably connected, the third connecting rods 83 are slidably arranged on the left and right sides of the middle portions of the second fixing plate 81 and the magnetic connecting frame 86, second racks 84 are welded on the front side and the rear side of the third connecting rod 83, the second racks 84 are meshed with the adjacent second flat gears 85, air cylinders 82 are installed on the left inner side and the right inner side of the second fixing plate 81 in a screw connection mode, telescopic rods of the air cylinders 82 are connected with the adjacent third connecting rod 83, and two second universal wheels 88 which are symmetrically arranged in the front-rear direction are rotatably arranged on the left side and the right side of the magnetic connecting frame 86.

After the second bed 5 is unfolded, the second universal wheel 88 on the magnetic connecting frame 86 can be used for assisting movement and ground support, the operator starts the air cylinder 82 to shorten, the air cylinder 82 telescopic piece can drive the second rack 84 to move forwards through the third connecting rod 83 to be meshed with the second flat gear 85, the second flat gear 85 drives the fourth connecting rod 87 connected with the second flat gear to rotate, the two rotatably connected fourth connecting rods 87 extend and unfold accordingly, the second universal wheel 88 is in contact with the ground, the extended fourth connecting rod 87 can drive the second fixing plate 81 to move in the direction away from the magnetic connecting frame 86, the second fixing plate 81 can be separated from the magnetic connecting frame 86, the first bed 3 and the second bed 5 can be lifted, the operator then closes the air cylinder 82, when the first bed 3 and the second bed 5 need to descend, the operator starts the air cylinder 82 to extend, the air cylinder 82 telescopic piece drives the second rack 84 to move backwards through the third connecting rod to be meshed with the second flat gear 85 again The second flat gear 85 drives the fourth connecting rods 87 connected with the second flat gear to rotate reversely, the two rotatably connected fourth connecting rods 87 are folded and folded, so that the first bed 3 and the second bed 5 can descend, and the operator closes the air cylinder 82 to complete the height adjustment operation.

Example 3

On the basis of embodiment 2, as shown in fig. 1, fig. 4 and fig. 5, still including protection mechanism 9, protection mechanism 9 is including first dead lever 91, limiting plate 92 and second spring 93, and bilateral symmetry formula welding has first dead lever 91 around the middle part of first bed 3, and first dead lever 91 middle part slidingtype cover is equipped with limiting plate 92, is connected with second spring 93 between limiting plate 92 and the first dead lever 91.

The limiting plate 92 is clamped by the first bed 5, the second spring 93 is compressed, the limiting plate 92 is loosened when the second bed 5 is rotated and unfolded, the second spring 93 is reset, the limiting plate 92 moves in the direction close to the first bed 3 under the reset effect of the second spring 93, so that when a patient lies on the first bed 3 and the second bed 5 flatly, the patient can be protected through the limiting plate 92, and then when the second bed 5 rotates reversely and is folded, the second bed 5 can extrude the limiting plate 92 to move in the direction away from the first bed 3, and the second spring 93 is compressed, so that the next protection operation can be prepared.

Example 4

On the basis of embodiment 3, as shown in fig. 1 and 8, the bed further comprises a propping mechanism 10, the propping mechanism 10 comprises a support plate 101, a clamping rod 102, a third spring 103, a fifth connecting rod 104, an elastic block 105 and a contact rod 106, the support plate 101 is bolted to the lower right side of the first bed 3, the clamping rods 102 penetrate through the front side and the rear side of the support plate 101 in a sliding manner, the third spring 103 is connected between the clamping rod 102 and the support plate 101, the fifth connecting rods 104 are symmetrically welded to the left sides of the two clamping rods 102, the elastic block 105 is bolted to the upper side of the first fixing plate 1, and the contact rod 106 is bolted to the lower side of the second connecting rod 66.

At first, the elastic block 105 blocks the fifth connecting rod 104, the third spring 103 is in a stretching state, when the second bed 5 is unfolded, the second connecting rod 66 moves rightwards to drive the contact rod 106 to move rightwards, the contact rod 106 pushes the fifth connecting rod 104 to move rightwards to squeeze the elastic block 105, the elastic block 105 deforms, the fifth connecting rod 104 moves rightwards continuously to release the elastic block 105, the elastic block 105 resets, the third spring 103 resets, the fifth connecting rod 104 drives the clamping rod 102 to move rightwards under the reset action of the third spring 103, so that when the second bed 5 is unfolded, the second bed 5 is supported by the clamping rod 102, then when the second bed 5 is folded, the second connecting rod 66 moves leftwards to drive the contact rod 106 to move leftwards, an operator pushes the clamping rod 102 to move leftwards to retract, the third spring 103 compresses, the clamping rod 102 drives the fifth connecting rod 104 to move leftwards to squeeze the elastic block 105, the elastic block 105 is deformed, the fifth connecting rod 104 moves leftwards continuously to release the elastic block 105, and the elastic block 105 is reset to clamp the fifth connecting rod 104 again, so that the supporting operation of the second bed 5 can be completed.

Example 5

On the basis of embodiment 4, as shown in fig. 1, 7 and 9, still including the mechanism 11 of taking, the mechanism 11 of taking is including third fixed block 111, second dead lever 112 and sixth connecting rod 113, the equal bilateral symmetry formula welding in both sides has third fixed block 111 around the first bed 3 bottom, it has second dead lever 112 to run through between two symmetrical third fixed blocks 111, second dead lever 112 right part slidable runs through has sixth connecting rod 113, second dead lever 112 and sixth connecting rod 113 outside all overlap and are equipped with anti-skidding rubber, can play anti-skidding effect.

The operator moves the sixth connecting link 113 rightward to cause the sixth connecting link 113 to protrude rightward from the inside of the second fixing link 112, so that the medical care person can grasp the second fixing link 112 and the sixth connecting link 113 when transporting the patient, facilitating the transportation of the patient, and then the operator moves the sixth connecting link 113 leftward to cause the sixth connecting link 113 to retract into the second fixing link 112.

The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A medical bed capable of being unfolded quickly and carried out comprises two first fixing plates (1), two first universal wheels (2), a first bed (3), connecting shafts (4) and a second bed (5), wherein the first fixing plates (1) are rotatably provided with the two first universal wheels (2) which are symmetrically arranged left and right, the first bed (3) is connected between the upper sides of the two first fixing plates (1), the right part of the first bed (3) is rotatably provided with the two connecting shafts (4) which are symmetrically arranged front and back, the second bed (5) is sleeved between the two connecting shafts (4), the folding bed is characterized by further comprising a turnover mechanism (6) and a limiting mechanism (7), wherein the turnover mechanism (6) used for enabling the second bed (5) to be rapidly unfolded and the limiting mechanism (7) used for fixing the second bed (5) are arranged on the first bed (3).

2. The quick-unfolding medical bed carried outside according to claim 1, wherein the turnover mechanism (6) comprises a first fixed block (61), a handle (62), a first connecting rod (63), a first contact block (64), a clamping plate (65), a second connecting rod (66), a first rack (67) and a first pinion (68), wherein the first pinion (68) is sleeved on the end of the two connecting shafts (4) away from each other, the second connecting rod (66) is slidably penetrated through the front and back sides of the right part of the first bed (3), the upper side of the right part of the second connecting rod (66) is connected with the first rack (67) capable of being meshed with the first pinion (68), the first fixed blocks (61) for guiding are symmetrically arranged on the front and back sides of the left part of the first bed (3), the first connecting rod (63) rotatably connected with the second connecting rod (66) is penetrated through the first fixed blocks (61) in a hinged manner, the upper side of the left end of the first connecting rod (63) is connected with a handle (62) used for grabbing, the left part of the first connecting rod (63) is sleeved with a first contact block (64), the front part and the rear part of the left part of the first bed (3) are symmetrically provided with clamping plates (65) used for clamping the first contact block (64), and the clamping plates (65) are located on the left of the first fixing block (61).

3. The medical bed capable of being unfolded rapidly when being carried out is disclosed by claim 2, wherein the limiting mechanism (7) comprises a second contact block (71), a second fixing block (72), a limiting rod (73) and a first spring (74), the second fixing block (72) located on the left side of the clamping plate (65) is symmetrically arranged on the front side and the rear side of the left portion of the first bed (3), the limiting rod (73) used for clamping the second bed (5) penetrates through the upper portion of the second fixing block (72) in a sliding mode, the first spring (74) is connected between the limiting rod (73) and the second fixing block (72), the second contact block (71) used for pushing the limiting rod (73) to move is sleeved on the left portion of the first connecting rod (63), and the second contact block (71) is located on the left portion of the first contact block (64).

4. The quick unfolding medical bed carried outside is characterized by further comprising a lifting mechanism (8) used for lifting the height of the bed, wherein the lifting mechanism (8) comprises a second fixing plate (81), a cylinder (82), a third connecting rod (83), a second rack (84), a second flat gear (85), a magnetic connecting frame (86), a fourth connecting rod (87) and a second universal wheel (88), the second fixing plate (81) is symmetrically arranged on one side, away from the first bed (3) and the second bed (5), the magnetic connecting frame (86) is magnetically adsorbed on one side, away from the second fixing plate (81), the second flat gear (85) is symmetrically arranged in the front-back direction in a rotating mode on the left side and the right side of the magnetic connecting frame (86) and the second fixing plate (81), the fourth connecting rod (87) is connected on the second flat gear (85), two adjacent fourth connecting rod (87) rotary type link to each other, second fixed plate (81) and magnetism link (86) middle part left and right sides all slidingtype are equipped with third connecting rod (83), both sides all are connected with second rack (84) with close second pinion (85) meshing around third connecting rod (83), cylinder (82) are all installed to two inboards about second fixed plate (81), the telescopic link of cylinder (82) links to each other with adjacent third connecting rod (83), the equal rotary type in magnetism link (86) left and right sides is equipped with two second universal wheel (88) that are the setting of symmetry formula around.

5. The rapidly-unfolded medical bed carried outside according to claim 4, further comprising a protection mechanism (9) for protecting the patient, wherein the protection mechanism (9) comprises a first fixing rod (91), a limiting plate (92) and a second spring (93), the first fixing rod (91) is symmetrically arranged at the front side and the rear side of the middle part of the first bed (3), the limiting plate (92) clamped by the second bed (5) is slidably sleeved at the middle part of the first fixing rod (91), and the second spring (93) is connected between the limiting plate (92) and the first fixing rod (91).

6. A portable quick-unfolding medical bed as claimed in claim 5, further comprising a support mechanism (10) for supporting the second bed (5), wherein the support mechanism (10) comprises a support plate (101), a clamping rod (102) and a third spring (103), fifth connecting rod (104), elastic block (105) and contact arm (106), first bed (3) right part lower side is connected with backup pad (101), both sides are all the slidingtype to run through in backup pad (101) front and back both sides have card pole (102) that are used for the support, be connected with third spring (103) between card pole (102) and backup pad (101), the symmetry formula is equipped with fifth connecting rod (104) on the one side that two card poles (102) left part leave, first fixed plate (1) upside is connected with elastic block (105) that are used for blocking fifth connecting rod (104), second connecting rod (66) downside is connected with contact arm (106) that are used for promoting fifth connecting rod (104) and remove.

7. The rapidly-unfolded medical bed carried outside is characterized by further comprising a taking mechanism (11) for facilitating grasping, wherein the taking mechanism (11) comprises a third fixing block (111), a second fixing rod (112) and a sixth connecting rod (113), the third fixing block (111) is symmetrically arranged on the front side and the rear side of the bottom of the first bed (3), the second fixing rod (112) penetrates through the two symmetrical third fixing blocks (111), and the sixth connecting rod (113) penetrates through the right portion of the second fixing rod (112) in a sliding manner.

8. The rapidly expanding hospital bed for outgoing carrying as claimed in claim 7, wherein the outside of the second fixing rod (112) and the sixth connecting rod (113) are sleeved with anti-slip rubber.