CN103222915A - Stretcher vehicle capable of automatically and transversely moving patient - Google Patents

Abstract

The invention discloses an automatic laterally moving patient stretcher, which belongs to the technical field of medical instruments. The automatic traversing patient stretcher trolley is composed of a stretcher trolley and a traversing bed. The traversing bed is placed on the stretcher lathe frame of the stretcher trolley, positioned by the safety baffle and guardrail, and driven by the traversing device to move the traversing bed laterally. The traversing bed is composed of a traversing bed, a bed conveyor belt and a drive device for the traversing bed conveyor. When transferring the patient from the stretcher to the operating table, the traversing device drives the traversing bed to move laterally to the middle of the operating table, and then the traversing bed conveyor drive device moves the patient lying on the bed conveyor belt to the operating table. In addition, there is no need to change the patient's position, which reduces the patient's pain during the handling process and prevents secondary injuries. The invention has high degree of automation, simple and convenient operation, reduces the labor intensity of medical personnel, and only needs one person to transfer patients. It is suitable for hospitals to transfer seriously injured patients from ambulances to operating tables or from operating rooms to sick beds after operations. .

Description

Automatic Traverse Patient Stretcher

technical field

The invention belongs to the technical field of medical devices, in particular to an automatic laterally moving patient stretcher.

Background technique

At present, the transportation of domestic patients before and after surgery is generally completed by using a stretcher. When transferring the patient to the hospital bed, multiple people are often used to lift and hug the patient. causing pain and even exacerbation of the patient's condition. In order to reduce the labor intensity of the medical staff, and reduce the pain and secondary injury of the patient during the carrying process, and in order to effectively solve the shortcomings of the low degree of automation in the prior art, an automatic laterally moving patient stretcher is needed.

Contents of the invention

The purpose of the present invention is to solve the problem of reducing the labor intensity of the medical staff and reducing the pain and secondary injury of the patient in the process of carrying described in the technical background, and to provide an automatic laterally moving patient stretcher, whose technical scheme is as follows:

The automatic traversing patient stretcher trolley is composed of a stretcher trolley and a traversing bed, and the traversing bed is placed on the stretcher lathe frame 14 of the stretcher trolley, and is positioned by a safety baffle 10 and a guardrail 15;

The stretcher trolley is composed of a base, a lifting frame and a stretcher lathe body, and the lifting frame is placed on the base and supports the stretcher lathe body in a horizontal state; the four universal wheels 1 are respectively fixed on the four corners of the lower surface of the rectangular chassis 2 It constitutes the base of the stretcher trolley. The lifting frame of the stretcher trolley is composed of lifting rod Ⅰ3, lifting rod Ⅱ4, hinged seat 5, bottom shaft 6, hydraulic cylinder 7 and chute frame 16. The two hinged seats 5 are respectively fixed on the base frame. On the upper surface of the rear ends of the left and right long sides of 2, two chute frames 16 are fixedly connected to the upper surfaces of the front ends of the left and right long sides of the chassis 2 respectively, and the two ends of the bottom shaft 6 are respectively placed on the In the round holes of the two hinged seats 5, the rear ends of the lifting rod I3 and the lifting rod II4 have a rear round hole, and the front end is vertically fixed to a sliding shaft 26, and there is a central round hole at the midpoint. The axes of the round hole and the central round hole are parallel to the sliding shaft 26; the rear ends of the two lifting rods I3 are respectively connected to the bottom shaft 6 through the rear end round holes on the inner sides of the left and right hinge seats 5, and the two lifting rods II4 The front end of the front end of the slide shaft 26 is in the horizontal chute on the chute frame 16 to form a sliding connection with the left and right two chute frames 16 respectively, and a hinge shaft 25 is used to connect the left lifting rod I3 and the left side in the central hole. The lifting rod II4 is hinged, and another hinge shaft 25 is used to hinge the right lifting rod I3 and the lifting rod II4 in the central hole, and the horizontal axis 24 is horizontally fixed to the rear of the left and right lifting rods II4. The end of the cylinder body of the cylinder 7 is rotatably connected with the bottom shaft 6, the end of the piston rod of the hydraulic cylinder 7 is rotatably connected with the horizontal shaft 24, and the rear ends of the elevating rod II 4 on the left and right sides are respectively connected with the other two on the stretcher with short shafts. Two hinged seats 5 are hinged, and the other two hinged seats 5 are fixedly connected to the left and right corners of the lower surface of the stretcher lathe plate 1401 respectively. The two chute frames 16 form a sliding connection, and the other two chute frames 16 are affixed to the front left and right corners of the lower surface of the stretcher lathe plate 1401;

Described stretcher lathe body is made up of stretcher lathe frame 14, safety baffle 10, guardrail 15 and handrail 8, and in rectangular stretcher lathe frame 14, by stretcher lathe frame left side plate 1402, stretcher lathe frame right side plate 1403, stretcher lathe The frame front side plate 1404 and the stretcher lathe frame rear side plate 1405 are fixed on the lower surface of the stretcher lathe plate 1401. On one side of the lower surface of the stretcher lathe plate 1401, two bed frame cross braces 29 are parallel to each other. Placed on the left half and the right half of the stretcher lathe board 1401, the two ends of the bed frame cross brace 29 are respectively fixed on the left side plate 1402 of the stretcher lathe frame and the right side plate 1403 of the stretcher lathe frame. Between the cross brace plates 29, there are two transversely transparent rack chutes 28 on the stretcher lathe plate 1401, and the two rack chutes 28 are parallel to each other and are horizontally arranged with the transverse center line of the stretcher lathe plate 1401 as a symmetrical axis. There are two circular holes distributed up and down on the same vertical line at the right end of the stretcher lathe frame left side plate 1402 and the stretcher lathe frame right side plate 1403, the circular hole above is the guardrail locking hole 1407, and the circular hole below is Guardrail rotating shaft hole 1406;

The safety baffle 10 is vertically fixed on the left side edge of the stretcher lathe plate 1401 upper surface of the stretcher lathe frame 14, and the two ends of the guardrail 15 respectively have a downward guardrail leg, and on the inner side of the guardrail leg, the guardrail shaft 36 is vertically fixed on the end of the guardrail leg, and the locking bolt 35 is placed in the middle of the guardrail leg. The guardrail shaft 36 and the locking bolt 35 constitute a guardrail rotation and locking device. The guardrail shaft holes 1406 at the front and rear ends constitute the rotational connection between the guardrail 15 and the stretcher lathe frame 14. When the guardrail 15 is upright, the locking bolt 35 is inserted into the guardrail locking hole 1407 to lock the guardrail 15; the handrail 8 is fixed behind the stretcher lathe frame on the outer side of the side panel 1405;

Through the articulation seat 5 fixedly connected to the left and right corners of the lower surface of the stretcher lathe plate 1401 and the rear ends of the lifting rod II 4 on the left and right sides, respectively, and the sliders fixed to the left and right corners of the lower surface of the stretcher lathe plate. The groove frame 16 is respectively slidably connected with the sliding shaft 26 at the front end of the elevating rod I3 on the left and right sides, the stretcher lathe body is supported on the base by the elevating frame, and the height of the stretcher lathe body is controlled by the hydraulic cylinder 7;

The traversing bed is composed of a traversing bed 12, a bed conveyor belt 13 and a drive device for the traversing bed conveyor. The traversing bed 12 is composed of a rectangular traversing bed bottom plate 1201 and The left side wall 1202 of the traversing bed, the front side wall 1203 of the traversing bed and the rear side wall 1204 of the traversing bed are composed of the left side wall 1202 of the upper surface of the bottom plate 1201, and the length of the traversing bed floor 1201 is not greater than the length of the stretcher lathe frame 14. The width is not greater than the distance between the safety baffle 10 and the upright guardrail 15 in the bed of the stretcher lathe, the left side wall 1202 of the traversing bed is a hollow structure, and the outer plate of the left side wall 1202 of the traversing bed and the bottom plate 1201 of the traversing bed The left side of the traversing bed is fixed on the left side, the front and rear ends of the inner side plate of the left side wall 1202 of the traversing bed are respectively fixed to the front side wall 1203 of the traversing bed and the rear side wall 1204 of the traversing bed, and the left side wall of the traversing bed There is a gap between the inner plate of 1202 and the bottom plate of the traversing bed 1201;

In the conveyor belt driving device for the traversing bed surface, the motor I11 is fixed on the rear end of the upper surface of the left side wall 1202 of the traversing bed, and inside the left side wall 1202 of the traversing bed, the driving roller 19 is placed horizontally on the traversing bed The upper part of the left side wall 1202, the front end and the rear part of the driving roller 19 are respectively rotatably connected with the front end plate and the rear end plate of the left side wall 1202 of the traversing bed, and the rear end shaft of the driving roller 19 protrudes from the left side of the traversing bed The rear end plate of the wall 1202, two turning rollers 20 are placed in the lower part of the left side wall 1202 of the traversing bed in parallel with the driving roller 19, and the turning roller 20 on the right side of the driving roller 19 is lower than the left side of the traversing bed The lower edge of the inner side plate of the wall 1202 is arranged, and the turning roll 20 on the left side of the driving roll 19 is lower than the turning roll 20 on the right side of the driving roll 19; Between the right edge of 1201, the driven roller 23 and 3 to 4 carrying rollers 21 are parallel to the driving roller 19 and distributed at equal intervals above the traversing bed floor 1201, wherein the 3 to 4 carrying rollers 21 are the same Height, the driven roller 23 is on the right side of the carrying roller 21 and the height is lower than the height of the carrying roller 21, the tension roller 22 is parallel to the driven roller 23 and placed between the driven roller 23 and the carrying roller 21, the driven roller 23. The front end and rear end of the tension roller 22 and the load roller 21 are respectively rotatably connected to the front side wall 1203 of the traversing bed and the rear side wall 1204 of the traversing bed, and the bed conveyor belt 13 passes through the left side of the traversing bed. The gap between the inner side plate of the side wall 1202 and the traversing bed bottom plate 1201 is surrounded by the driving roller 19, the steering roller 20, the carrying roller 21 and the driven roller 23 to form a belt conveying mechanism, and the tension roller 22 is conveyed from the bed surface to the belt 13. The bed surface conveyor belt 13 is tensioned below the bed surface, between the inner side plate of the left side wall 1202 of the traversing bed and the driven roller 23, the upper surface of the bed surface conveyor belt 13 constitutes the bed surface of the traversing bed; Outside the left side wall 1202, the large gear 17 is fixed on the rear end shaft of the driving roller 19, the pinion 18 is fixed on the shaft of the motor I11 and meshes with the large gear 17, and the gear cover 9 is fixed on the left side of the traversing bed. On the side wall 1202 and cover the large gear 17 and the small gear 18;

The traversing bed is placed on the stretcher lathe frame 14 of the stretcher trolley, and the traversing bed is driven to move laterally by the traversing device, and the traversing device is composed of the stretcher upper part of the traversing device and the traversing bed part of the traversing device;

The drive gear 27, motor II30, small bevel gear 31, large bevel gear 32 and drive shaft 33 on the stretcher lathe frame 14 form the upper part of the stretcher of the traversing device, and the drive shaft 33 is placed longitudinally on two bed frame cross braces 29, the two ends of the drive shaft 33 are respectively connected to the two bed frame cross braces 29 by bearings, and the two drive gears 27 are respectively aligned with the two rack chutes 28 and fixed on the drive shaft 33. The gear 32 is fixedly connected to the middle part of the drive shaft 33, and the motor II 30 is fixed on the lower surface of the stretcher lathe plate 1401 of the stretcher lathe frame 14 on one side of the drive shaft 33. The output shaft of the motor II 30 points to the drive shaft 33 and is perpendicular to each other, and the small bevel gear 31 is fixedly connected to the output shaft of the motor II 30, and the small bevel gear 31 and the large bevel gear 32 mesh with each other;

The traversing bed part of the traversing device is composed of two driving racks 34 fixed on the middle part of the lower surface of the traversing bed base plate 1201, and the two driving racks 34 are parallel to each other and are used to traverse the lateral centerline of the bed base plate 1201 The axis of symmetry is horizontally arranged, and the centerline spacing of the two driving racks 34 is the same as the centerline spacing of the two rack chutes 28 on the stretcher lathe plate 1401, and the width of the driving racks 34 is not greater than that of the rack chutes 28. Width, the length of the driving rack 34 is less than the length of the rack chute 28; when the traversing bed is placed on a stretcher cart, the lower surface of the traversing bed base 1201 contacts the upper surface of the stretcher lathe plate 1401, and the front and rear two driving racks 34 They are placed in the front and rear two rack slide grooves 28 respectively, and the drive rack 34 is meshed with the corresponding drive gear 27 .

The hydraulic cylinder 7 is a manually driven hydraulic cylinder.

Both the motor I11 and the motor II30 are servo motors controlled by a microcomputer or a programmable logic controller (PLC).

In the guardrail rotation and locking device, the locking pin mounting hole on the guardrail leg is composed of two coaxial round holes with different inner diameters, the diameter of the hole on the inner side of the guardrail leg is larger than that on the outer side, and the locking bolt is 35 minutes It is a nut and a screw rod. The locking bolt 35 is inserted into the locking pin installation hole from the outer side of the guardrail leg. The length of the screw rod of the locking bolt 35 is greater than the thickness of the guardrail leg. The aperture of the locking pin installation hole on the top is matched, the retaining ring 38 is threadedly connected with the screw rod of the locking bolt 35 and placed in the locking pin installation hole, the spring 37 is sleeved on the screw rod of the locking bolt 35 in the locking pin installation hole, and the two ends of the spring 37 Respectively stand on the steps in the locking pin mounting hole and the retaining ring 38, under the action of the spring 37, the screw end of the locking bolt 35 is exposed outside the inner side of the leg, the axis pulls the locking bolt 35 outward, and the retaining ring 38 compresses The spring 37 can retract the screw end of the locking bolt 35 into the locking pin mounting hole. When the guardrail 15 is locked, the screw end of the locking bolt 35 is inserted into the guardrail locking hole 1407 on the stretcher lathe frame 14 .

The beneficial effect of the present invention is that the present invention can not only transfer the patient to the operating bed, but also transfer the patient from the operating bed to the sick bed, without changing the patient's position during the lateral transfer process, which reduces the patient's pain and pain in the process of transportation. Prevent secondary injury; high degree of automation, good reliability, reduce the labor intensity of medical staff, simple and convenient operation, only one person can transfer the patient; the rotating structure design of the guardrail enhances the safety of the patient during the transfer process sex.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the stretcher car with automatic conversion of beds;

Fig. 2 is the A direction view of Fig. 1;

Fig. 3 is a structural schematic diagram of a stretcher;

Fig. 4 is the structural representation of the base of the stretcher trolley and the elevating frame;

Fig. 5 is a structural schematic diagram of the upper part of the stretcher car of the stretcher lathe frame and the traverse device;

Fig. 6 is the structural representation of guardrail;

Fig. 6A is a partially enlarged sectional view at D in Fig. 6, that is, a structural schematic diagram of the guardrail rotation and locking device;

Fig. 7A is a schematic diagram of the structure of the traversing bed;

Fig. 7B is a schematic diagram of part of the structural part of the traversing bed of the traversing device on the back of the traversing bed;

Fig. 8 is a B-B sectional view of Fig. 1, that is, a longitudinal schematic diagram of a conveyor belt drive device for traversing the bed surface;

Fig. 9 is a C-C sectional view of Fig. 1, that is, a lateral schematic diagram of a conveyor belt drive device for traversing the bed surface;

Figure 10 is a schematic diagram of the working state of the stretcher car with automatic conversion of beds;

Fig. 11 is a schematic diagram of the process of transferring a patient from the automatic bed stretcher to the operating table.

In the figure, 1--universal wheel, 2--underframe, 3--lifting rod Ⅰ, 4--lifting rod Ⅱ, 5--hinge seat, 6--bottom shaft, 7--hydraulic cylinder, 8- -handrail, 9--gear cover, 10-safety baffle, 11-motor Ⅰ, 12-transverse bed, 13-bed conveyor belt, 14-stretcher lathe frame, 15-guardrail, 16 --chute frame, 17--big gear, 18--pinion, 19--driving roller, 20--steering roller, 21--loading roller, 22--tension roller, 23--driven roller, 24--horizontal shaft, 25--hinge shaft, 26--sliding shaft, 27--driving gear, 28--rack chute, 29--cross support plate of bed frame, 30--motor II, 31-- Small bevel gear, 32--large bevel gear, 33--drive shaft, 34--drive rack, 35--lock bolt, 36--guardrail shaft, 37--spring, 38--retaining ring, 39-- Operating table, 40--Patient, 1201--Straversing the bed floor, 1202--Straversing the left side wall of the bed, 1203--Straversing the front side wall of the bed, 1204--Straversing the rear side wall of the bed, 1401 --stretcher lathe board, 1402--left side board of stretcher lathe frame, 1403--right side board of stretcher lathe frame, 1404--front side board of stretcher lathe frame, 1405--rear side board of stretcher lathe frame, 1406--guard rail Shaft hole, 1407--guardrail locking hole.

Detailed ways

The specific structure and working process of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1 and Figure 2, the overall structure of the stretcher car with automatic conversion of beds, the automatic traversing patient stretcher car is composed of a stretcher car and a traversing bed. The panels 10 and guardrails 15 are positioned.

The structure of the stretcher trolley is shown in Figure 3, and the stretcher trolley consists of a base, a lifting frame and a stretcher lathe bed, and the lifting frame is placed on the base and supports the stretcher lathe bed as a horizontal state. Fig. 4 is the schematic diagram of the base of the stretcher car and the structure of the elevating frame. Four universal wheels 1 are fixedly connected to the four corners of the lower surface of the rectangular underframe 2 to form the base of the stretcher car. The elevating frame of the stretcher car is made up of elevating rod I3, elevating rod II4, hinge seat 5, bottom shaft 6, hydraulic cylinder 7 and chute frame 16. Two articulated seats 5 are respectively fixed on the upper surfaces of the left and right long sides of the bottom frame 2, and two chute frames 16 are respectively fixed on the upper surfaces of the left and right long sides of the bottom frame 2. The two ends of the shaft 6 are respectively placed in the circular holes of the two hinge seats 5 . Both the lifting rod I3 and the lifting rod II4 have a rear round hole at the rear end, a sliding shaft 26 is fixed vertically at the front end, and there is a central round hole at the midpoint, and the axes of the rear end round hole and the central round hole are all aligned with each other. The sliding axes 26 are parallel. The rear ends of the two lifting rods I3 are respectively connected to the bottom shaft 6 through the round holes at the rear ends on the inner sides of the left and right hinged seats 5, and the front ends of the two lifting rods II4 slide horizontally on the chute frame 16 through the sliding shaft 26. The groove is respectively connected with the left and right chute racks 16 to form a sliding connection, and a hinge shaft 25 is used to hinge the left lift rod I3 and lift rod II4 in the central hole, and another hinge shaft 25 is used to connect the lift rods in the center. The lifting rod I3 and the lifting rod II4 on the right side are hinged in the round hole. The horizontal shaft 24 is horizontally connected to the rear portion of the elevating rod II4 on the left and right sides, the cylinder end of the hydraulic cylinder 7 is connected to the bottom shaft 6 in rotation, and the end of the piston rod of the hydraulic cylinder 7 is connected to the horizontal shaft 24 in rotation. The rear ends of the elevating rods II4 on the left and right sides are respectively hinged with the other two hinged seats 5 on the stretcher car with short shafts, and the other two hinged seats 5 are fixedly connected to the left and right corners of the rear part of the lower surface of the stretcher lathe plate 1401 respectively. ,. The front ends of the elevating rods I3 on the left and right sides respectively form a sliding connection with the other two chute frames 16 on the stretcher cart through the sliding shaft 26, and the other two chute frames 16 are fixedly connected to the front part of the lower surface of the stretcher lathe plate 1401 at the left and right corners.

As shown in Figure 3, the stretcher lathe body is made up of stretcher lathe frame 14, safety baffle 10, guardrail 15 and handrail 8. As shown in the structural diagram of the stretcher lathe frame in Figure 5, in the rectangular stretcher lathe frame 14, the stretcher lathe frame left side plate 1402, the stretcher lathe frame right side plate 1403, the stretcher lathe frame front side plate 1404 and the stretcher lathe frame rear side The four frames formed by the plates 1405 are fixed on the lower surface of the stretcher lathe plate 1401 . On the side of the lower surface of the stretcher lathe board 1401, two bed frame cross braces 29 are placed parallel to each other on the left half and the right half of the stretcher lathe board 1401, respectively, and the two ends of the bed frame cross brace 29 are fixed on the stretcher respectively. On the left side plate 1402 of the lathe frame and the right side plate 1403 of the stretcher lathe frame. Between the two bed frame cross braces 29, there are two transversely transparent rack chute 28 on the stretcher lathe board 1401, and the two rack chute 28 are parallel to each other and take the transverse center line of the stretcher lathe board 1401 as The axis of symmetry is set transversely. There are two circular holes distributed up and down on the same vertical line at the right end of the stretcher lathe frame left side plate 1402 and the stretcher lathe frame right side plate 1403, the circular hole above is the guardrail locking hole 1407, and the circular hole below is Guardrail rotating shaft hole 1406.

The safety baffle 10 is vertically fixed on the left edge of the upper surface of the stretcher lathe plate 1401 of the stretcher lathe frame 14 . Fig. 6 is the structure diagram of guardrail, and the two ends of guardrail 15 respectively have a guardrail leg downwards, and on the inner surface of guardrail leg, guardrail shaft 36 is vertically fixed on the end of guardrail leg, and locking bolt 35 is placed Guardrail leg middle part, guardrail axle 36 and locking bolt 35 constitute guardrail rotation and locking device. The two guardrail shafts 36 on the guardrail 15 are respectively in the guardrail shaft holes 1406 at the front and rear ends of the stretcher lathe frame 14, forming a rotational connection between the guardrail 15 and the stretcher lathe frame 14. When the guardrail 15 is upright, the locking bolt 35 is inserted into the guardrail locking hole 1407 Lock the guardrail 15 in the middle. Handrail 8 is affixed on the outer surface of stretcher lathe frame rear side plate 1405.

The structural diagram of the guardrail rotation and locking device shown in Figure 6A, in the guardrail rotation and locking device, the locking pin mounting hole on the guardrail leg is composed of two coaxial circular holes with different inner diameters, and the inner surface of the guardrail leg The aperture is larger than the aperture on the outer side. Locking bolt 35 is divided into nut and screw rod two parts, and locking bolt 35 inserts locking pin installation hole from the outer side of guardrail leg, and the screw rod length of locking bolt 35 is greater than the thickness of guardrail leg, and the screw rod outer diameter of locking bolt 35 and guardrail The diameters of the locking pin mounting holes on the outer side of the legs match. The retaining ring 38 is threadedly connected with the screw rod of the locking pin 35 and placed in the locking pin mounting hole, the spring 37 is sleeved on the screw rod of the locking pin 35 in the locking pin mounting hole, and the two ends of the spring 37 are respectively pressed against the pins in the locking pin mounting hole. On the step and retaining ring 38. Under the action of the spring 37, the screw end of the locking bolt 35 is exposed outside the inner surface of the leg, and the axis pulls the locking bolt 35 outwards, and the retaining ring 38 compresses the spring 37, so that the screw end of the locking bolt 35 can be retracted into the The locking pin installation hole, when locking the guardrail 15, the screw rod end of the locking bolt 35 is inserted in the guardrail locking hole 1407 on the stretcher lathe frame 14.

Through the articulation seat 5 fixedly connected to the left and right corners of the lower surface of the stretcher lathe plate 1401 and the rear ends of the lifting rod II 4 on the left and right sides, respectively, and the sliders fixed to the left and right corners of the lower surface of the stretcher lathe plate. The groove frame 16 is respectively slidingly connected with the sliding shaft 26 at the front end of the lifting rod I3 on the left and right sides. The stretcher lathe body is supported on the base by the lifting frame, and the height of the stretcher lathe bed is controlled by the hydraulic cylinder 7, which is manually driven. hydraulic cylinder.

The traversing bed is composed of a traversing bed body 12, a bed surface conveyor belt 13 and a traversing bed surface conveyor belt driving device. Fig. 7A is a schematic diagram of the structure of the traversing bed. The traversing bed 12 consists of a rectangular traversing bed bottom plate 1201, a traversing bed left side wall 1202 fixed on the upper surface edge of the traversing bed bottom plate 1201, and a traversing bed. The body front side wall 1203 and the side wall 1204 behind the traversing bed form. The length of the traversing bed base plate 1201 is not greater than the length of the stretcher lathe frame 14, and the width is not greater than the distance between the safety barrier 10 and the upright guardrail 15 in the stretcher lathe bed. The left side wall 1202 of the traversing bed is a hollow structure, and the outer plate of the left side wall 1202 of the traversing bed is fixedly connected to the left side of the bottom plate 1201 of the traversing bed, and the inner plate of the left side wall 1202 of the traversing bed The front and rear ends are fixedly connected to the front side wall 1203 of the traversing bed and the rear side wall 1204 of the traversing bed respectively.

The longitudinal schematic diagram of the drive device for the traversing bed conveyor shown in Figure 8 and the transverse schematic diagram of the drive device for the traversing bed conveyor shown in Figure 9. In the drive device for the traversing bed conveyor, the motor I11 is fixed on the left side of the traversing bed The rear end of the upper surface of the wall 1202. Inside the left side wall 1202 of the traversing bed, the driving roller 19 is placed horizontally on the upper part of the left side wall 1202 of the traversing bed, and the front end and rear part of the driving roller 19 are respectively connected to the front end plate and the left side wall 1202 of the traversing bed. The rear end plate is rotatably connected, the rear end shaft of the drive roller 19 protrudes from the rear end plate of the left side wall 1202 of the traversing bed, and the two steering rollers 20 are placed on the lower part of the left side wall 1202 of the traversing bed in parallel with the drive roller 19 , the turning roller 20 on the right side of the driving roller 19 is lower than the lower edge of the inner side plate of the left side wall 1202 of the bed, and the turning roller 20 on the left side of the driving roller 19 is lower than the turning roller 20 on the right side of the driving roller 19 . Between the inner side plate of the left side wall 1202 of the traversing bed and the right edge of the bottom plate 1201 of the traversing bed, the driven roller 23 and the four carrying rollers 21 are parallel to the driving roller 19 and distributed at equal intervals on the traversing bed Above the body bottom plate 1201, wherein, the four carrying rollers 21 are the same height, the driven roller 23 is on the right side of the carrying roller 21 and the height is lower than the height of the carrying roller 21, the tension roller 22 is parallel to the driven roller 23 and placed Between the driven roller 23 and the carrying roller 21, the front and rear ends of the driven roller 23, the tension roller 22 and the carrying roller 21 are respectively rotatably connected to the front side wall 1203 of the traversing bed and the rear side wall 1204 of the traversing bed . The bed conveyor belt 13 passes through the gap between the inner side plate of the left side wall 1202 of the traversing bed and the bottom plate 1201 of the traversing bed, and surrounds the driving roller 19, the steering roller 20, the carrying roller 21 and the driven roller 23 The belt conveying mechanism is constituted above, and the tension roller 22 tensions the bed surface conveyor belt 13 from below the bed surface conveyor belt 13. Between the inner side plate of the left side wall 1202 of the traversing bed and the driven roller 23, the upper surface of the bed surface conveyor belt 13 constitutes the bed surface of the traversing bed. On the outside of the left side wall 1202 of the traversing bed, the large gear 17 is fixed on the rear shaft end of the driving roller 19, the pinion 18 is fixed on the shaft of the motor I11 and meshes with the large gear 17, and the gear cover 9 is fixed on the Traversing on the left side wall 1202 of the bed and covering the large gear 17 and the pinion 18 .

The traversing bed is placed on the stretcher lathe frame 14 of the stretcher trolley, and the traversing bed is driven to move laterally by the traversing device.

As shown in Figure 5, the upper portion of the stretcher car of the traversing device is a structural schematic diagram, and the drive gear 27, motor II 30, small bevel gear 31, large bevel gear 32 and drive shaft 33 on the stretcher lathe frame 14 form the stretcher of the traversing device car part. The drive shaft 33 is vertically placed on the two bed frame cross braces 29, the two ends of the drive shaft 33 are respectively connected with the two bed frame cross braces 29 by bearings, and the two drive gears 27 are aligned with the two racks respectively. The chute 28 is affixed to the drive shaft 33, the large bevel gear 32 is affixed to the middle part of the drive shaft 33, and the motor II 30 is fixed on the lower surface of the stretcher lathe plate 1401 of the stretcher lathe frame 14 on one side of the drive shaft 33. The output shafts point to the drive shaft 33 and are perpendicular to each other. The small bevel gear 31 is fixedly connected to the output shaft of the motor II 30, and the small bevel gear 31 and the large bevel gear 32 mesh with each other.

As shown in Figure 7B, the schematic diagram of the part structure of the traversing bed of the traversing device on the back of the traversing bed, the part of the traversing bed of the traversing device consists of two driving teeth fixed in the middle of the lower surface of the bottom plate 1201 of the traversing bed Article 34 constitutes. The two drive racks 34 are parallel to each other and are horizontally arranged with the transverse centerline of the bed base plate 1201 as the symmetrical axis. The center line spacing is the same, the width of the driving rack 34 is not greater than the width of the rack chute 28, and the length of the driving rack 34 is less than the length of the rack chute 28.

When the traversing bed is placed on the stretcher cart, the lower surface of the traversing bed base plate 1201 is in contact with the upper surface of the stretcher lathe plate 1401, and the front and rear two drive racks 34 are respectively placed in the front and rear two rack chutes 28, and the drive racks 34 meshes with the corresponding drive gear 27.

The motor I11 in the conveyor belt driving device for traversing the bed surface and the motor II30 in the traversing device are all servo motors, controlled by a microcomputer or a programmable logic controller (PLC).

The process of using the present invention to transfer the patient who needs surgical treatment from the ambulance to the operating table is as follows:

1. Place the patient 40 on the conveyor belt 13 of the traversing bed surface of the stretcher car with automatic conversion of beds near the ambulance, then erect the guardrail 15, and insert the locking bolt 35 in the guardrail rotation and locking device into the guardrail locking hole 1407 The guardrail 15 is locked, as shown in the schematic diagram of the working state of the automatic conversion bed stretcher car in Figure 10;

2. Push the automatic conversion bed stretcher trolley to the operating room, unlock the guardrail 15 and place it in a drooping state, put the left side of the automatic conversion bed stretcher trolley close to the operating table 39, and manually control the hydraulic cylinder 7 to make the stretcher lathe bed of the stretcher trolley The upper surface of 1401 is flush with the operating table 39, and the motor II 30 of the traversing device starts to rotate in the forward direction, and the traversing bed moves toward the operating table 39. When the right edge of the traversing bed is placed in the area of 391/3 to 1/2 , turn off the motor II 30;

3. Start the motor I11 in the driving device of the traversing bed surface conveyor belt to rotate forward, the bed surface conveyor belt 13 rotates forward, and move the patient 40 to the operating table 39. When the patient 40 traversing to the driven roller 23 of the traversing bed When above, the nurse supports the patient 40 and slowly places the patient 40 on the operating table 39, as shown in Figure 11;

4. Turn off motor Ⅰ11, and start motor Ⅱ30 to rotate in reverse. When the traverse bed returns to the stretcher, turn off start motor Ⅱ30, push away the automatic bed stretcher, and complete the operation of transferring the patient to the operating table.

The process of using the present invention to transfer the postoperative patient to the sick bed is as follows:

1. Unlock the guardrail 15 of the automatic conversion bed stretcher trolley and put it in the drooping state, put the left side of the automatic conversion bed stretcher trolley close to the operating table 39, and manually control the hydraulic cylinder 7 so that the upper surface of the stretcher lathe plate 1401 of the stretcher trolley is in contact with the operating table. When the table 39 is level, the motor II 30 of the traversing device is started to rotate in the forward direction, and the traversing bed moves toward the operating table 39;

2. When the right edge of the traversing bed approaches the patient 40, the nurse lifts the patient 40 up, the bed conveyor belt 13 goes deep under the body of the patient 40, puts the patient 40 flat on the bed conveyor belt 13, and turns off the motor II 30;

3. Start the motor I11 in the driving device of the traversing bed surface conveyor belt to rotate in reverse, and the bed surface conveyor belt 13 to rotate in reverse, and move the patient 40 to the center of the traversing bed. When the patient 40 moves to the center of the traversing bed, Turn off the motor Ⅰ11;

4. The automatic bed stretcher trolley leaves the operating table 39, the guardrail 15 is erected, and the locking bolt 35 in the guardrail rotation and locking device is inserted into the guardrail locking hole 1407 to lock the guardrail 15, as shown in Figure 10, the working state diagram of the automatic bed stretcher trolley shown;

5. Push the stretcher trolley with automatic bed conversion to the ward, and the process of moving the patient to the bed in the ward is the same as the process of moving the patient to the operating table in the operating room.

During the whole process of transferring the patient, the position of the patient is not changed, which reduces the pain of the patient during the transfer process and prevents secondary injuries.

The invention is suitable for hospitals to transfer seriously injured patients from ambulances to operating tables or from operating rooms to sick beds after operations.

Claims (4)

1. An automatic traversing patient stretcher trolley, consisting of a stretcher trolley and a traversing bed, the traversing bed is placed on the stretcher lathe frame (14) of the stretcher trolley, and is positioned by the safety baffle (10) and the guardrail (15) , it is characterized in that, described stretcher trolley is made up of base, lifting frame and stretcher lathe body, lifting frame is placed on base and stretcher lathe body is supported in a horizontal state; 4 universal wheels (1) are respectively fixed on the rectangular The four corners of the lower surface of the underframe (2) form the base of the stretcher trolley, and the lifting frame of the stretcher trolley consists of lifting rod I (3), lifting rod II (4), hinged seat (5), bottom shaft (6), hydraulic cylinder (7) and the chute frame (16), the two hinged seats (5) are respectively fixed on the upper surface of the left and right long side rear ends of the chassis (2), and the two chute frames (16) are fixed respectively Connected to the upper surface of the front end of the left and right long sides of the bottom frame (2), the two ends of the bottom shaft (6) are respectively placed in the round holes of the two hinge seats (5), and the lifting rod I (3 ) and the rear end of the lifting rod II (4) have a rear end round hole, and the front end is vertically fixed with a sliding shaft (26), and there is a central round hole at the midpoint, and the rear end round hole and the central round hole The axes are all parallel to the sliding shaft (26); the rear ends of the two elevating rods I (3) are respectively connected to the bottom shaft (6) through the round holes at the rear ends on the inner sides of the left and right hinged seats (5), and the two elevating rods The front end of the rod II (4) forms a sliding connection with the left and right two chute frames (16) respectively in the horizontal chute on the chute frame (16) through the sliding shaft (26), and a hinged shaft (25) is used in the horizontal chute Hinge the left lift rod I (3) and lift rod II (4) in the center hole, and use another hinge shaft (25) to connect the right lift rod I (3) and lift rod II (4) in the center hole. The lifting rod II (4) is hinged, the horizontal shaft (24) is horizontally fixed to the rear of the lifting rod II (4) on the left and right sides, and the cylinder end of the hydraulic cylinder (7) is rotationally connected with the bottom shaft (6). The end of the piston rod of the hydraulic cylinder (7) is rotatably connected to the horizontal shaft (24), and the rear ends of the lifting rod II (4) on the left and right sides are respectively hinged to the other two hinged seats (5) on the stretcher with short shafts. , the other two articulated seats (5) are respectively fixed on the left and right corners of the lower surface of the stretcher lathe plate (1401), and the front ends of the lifting rods I (3) on the left and right sides are respectively connected to the stretcher through the sliding shaft (26). The other two chute frames (16) on the car form a sliding connection, and the other two chute frames (16) are fixedly connected to the front left and right corners of the lower surface of the stretcher lathe bed (1401); The stretcher lathe body is composed of a stretcher lathe frame (14), a safety baffle (10), a guardrail (15) and a handrail (8). In the rectangular stretcher lathe frame (14), the left side panel of the stretcher lathe frame (1402 ), the right side plate of the stretcher lathe frame (1403), the front side plate of the stretcher lathe frame (1404) and the rear side plate of the stretcher lathe frame (1405) are fixed on the lower surface of the stretcher lathe frame (1401). On one side of the lower surface of the stretcher lathe board (1401), two bed frame cross braces (29) are placed parallel to each other on the left half and the right half of the stretcher lathe board (1401), and the bed frame cross braces (29) The two ends are respectively fixed on the left side plate (1402) of the stretcher lathe frame and the right side plate (1403) of the stretcher lathe frame. Between the two bed frame cross braces (29), there are two The rack chute (28) is transparent horizontally. The two rack chutes (28) are parallel to each other and are set horizontally with the transverse center line of the stretcher lathe plate (1401) as the axis of symmetry. On the left side plate of the stretcher lathe frame ( 1402) and the right end of the right side plate (1403) of the stretcher lathe frame have two round holes distributed up and down on the same vertical line, the upper round hole is the guardrail locking hole (1407), and the lower round hole is the guardrail rotating shaft hole(1406); The safety baffle (10) is vertically fixed on the left edge of the upper surface of the stretcher lathe plate (1401) of the stretcher lathe frame (14), and the two ends of the guardrail (15) respectively have a downward guardrail leg. On the inner side of the leg, the guardrail shaft (36) is vertically fixed at the end of the guardrail leg, the locking bolt (35) is placed in the middle of the guardrail leg, and the guardrail shaft (36) and locking bolt (35) constitute the guardrail rotation and locking device , the two guardrail shafts (36) on the guardrail (15) are respectively in the guardrail shaft holes (1406) at the front and rear ends of the stretcher lathe frame (14), forming the rotational connection between the guardrail (15) and the stretcher lathe frame (14). When the guardrail (15) is upright, the locking bolt (35) is inserted into the guardrail locking hole (1407) to lock the guardrail (15); the handrail (8) is fixedly connected to the outer surface of the rear side plate (1405) of the stretcher lathe frame; Through the articulation seat (5) fixed at the left and right corners of the lower surface of the stretcher lathe plate (1401) and the rear end of the lifting rod II (4) on the left and right sides, respectively, and fixed on the front of the lower surface of the stretcher lathe plate The chute frame (16) at the left and right corners of the upper part is respectively slidingly connected with the sliding shaft (26) at the front end of the lifting rod I (3) on the left and right sides. The stretcher lathe bed is supported on the base by the lifting frame, and the hydraulic cylinder (7) Control the height of the stretcher bed; The traversing bed consists of a traversing bed (12), a bed surface conveyor belt (13) and a drive device for the traversing bed surface conveyor belt, and the traversing bed (12) consists of a rectangular traversing bed floor (1201) And the left side wall of the traversing bed (1202), the front side wall of the traversing bed (1203) and the rear side wall of the traversing bed (1204) fixed on the edge of the upper surface of the traversing bed (1201). The length of the bed base plate (1201) is not greater than the length of the stretcher lathe bed frame (14), and the width is not greater than the distance between the safety baffle (10) and the upright guardrail (15) in the stretcher lathe bed, and the left side wall of the bed is traversed. (1202) is a hollow structure, and the outer plate of the left side wall of the traversing bed (1202) is fixedly connected to the left side of the bottom plate of the traversing bed (1201), and the inner plate of the left side wall of the traversing bed (1202) The front and rear ends of the traversing bed are respectively fixed to the front side wall (1203) and the rear side wall (1204) of the traversing bed, and the inner side plate of the left side wall of the traversing bed (1202) is connected to the bottom plate of the traversing bed (1201 ) with a gap between them; In the conveyor drive device for the traversing bed surface, the motor I (11) is fixed on the rear end of the upper surface of the left side wall of the traversing bed (1202), and inside the left side wall of the traversing bed (1202), the driving roller ( 19) Horizontally placed on the upper part of the left side wall (1202) of the traversing bed, the front and rear parts of the driving roller (19) are respectively connected to the front end plate and the rear end plate of the left side wall (1202) of the traversing bed in rotation, The rear end shaft of the driving roller (19) protrudes from the rear end plate of the left side wall of the traversing bed (1202), and two steering rollers (20) are placed parallel to the driving roller (19) on the left side wall of the traversing bed ( 1202), the steering roller (20) on the right side of the driving roller (19) is lower than the lower edge of the inner plate of the left side wall of the traversing bed (1202), and the steering roller (20) on the left side of the driving roller (19) The steering roller (20) is lower than the steering roller (20) to the right of the driving roller (19); between the inner side plate of the left side wall of the traversing bed (1202) and the right edge of the traversing bed floor (1201) , the driven roller (23) and 3 to 4 bearing rollers (21) are parallel to the driving roller (19) and distributed at equal intervals above the traversing bed floor (1201), wherein, 3 to 4 bearing rollers (21 ) is the same height, the driven roller (23) is on the right side of the carrying roller (21) and its height is lower than that of the carrying roller (21), the tension roller (22) is parallel to the driven roller (23) and Between the driven roller (23) and the carrying roller (21), the front and rear ends of the driven roller (23), the tension roller (22) and the carrying roller (21) are respectively connected to the front side wall (1203 ) and the rear side wall of the traversing bed (1204) are rotatably connected, and the bed surface conveyor belt (13) passes through the gap between the inner plate of the left side wall of the traversing bed (1202) and the bottom plate (1201) of the traversing bed , and around the driving roller (19), steering roller (20), carrying roller (21) and driven roller (23) to form a belt conveying mechanism, the tension roller (22) from the bed conveyor belt (13) below the The bed surface conveyor belt (13) is tensioned, and the upper surface of the bed surface conveyor belt (13) constitutes the bed surface of the traversing bed between the inner plate of the left side wall of the traversing bed (1202) and the driven roller (23); On the outside of the left side wall (1202) of the traversing bed, the large gear (17) is fixed on the rear end shaft of the driving roller (19), and the pinion (18) is fixed on the shaft of the motor I (11) and is connected with The large gear (17) is engaged, and the gear cover (9) is fixed on the left side wall (1202) of the traversing bed and covers the large gear (17) and the small gear (18); The traversing bed is placed on the stretcher lathe frame (14) of the stretcher trolley, and the traversing bed is driven to move laterally by the traversing device. composition; The drive gear (27), motor II (30), small bevel gear (31), large bevel gear (32) and drive shaft (33) on the stretcher lathe frame (14) form the upper part of the stretcher of the traverse device, The drive shaft (33) is vertically placed on the two bed frame cross braces (29), and the two ends of the drive shaft (33) are respectively connected in rotation with the two bed frame cross braces (29) by bearings, and the two drive gears (27) Align the two rack chutes (28) and fix them on the drive shaft (33), the large bevel gear (32) is fixed on the middle of the drive shaft (33), and the motor II (30) is fixed on the drive shaft ( One side of 33) is fixed on the lower surface of the stretcher lathe plate (1401) of the stretcher lathe frame (14), the output shaft of the motor II (30) points to the drive shaft (33) and is perpendicular to each other, and the small bevel gear (31) is fixed On the output shaft of the motor II (30), the small bevel gear (31) and the large bevel gear (32) mesh with each other; The traversing bed part of the traversing device is composed of 2 driving racks (34) fixed in the middle of the lower surface of the traversing bed base plate (1201). The 2 driving racks (34) are parallel to each other and move the bed The transverse centerline of the bottom plate (1201) is arranged transversely to the axis of symmetry, and the distance between the centerlines of the two driving racks (34) is the same as the distance between the centerlines of the two rack chutes (28) on the stretcher lathe plate (1401). The width of the drive rack (34) is not greater than the width of the rack chute (28), and the length of the drive rack (34) is less than the length of the rack chute (28); When the traversing bed is placed on the stretcher cart, the lower surface of the traversing bed base plate (1201) is in contact with the upper surface of the stretcher lathe plate (1401), and the front and rear driving racks (34) are respectively placed in the front and rear two rack chutes ( 28), and the drive rack (34) meshes with the corresponding drive gear (27). 2. The automatic traversing patient stretcher trolley according to claim 1, characterized in that the hydraulic cylinder (7) is a manually driven hydraulic cylinder. 3. The automatic traversing patient stretcher trolley according to claim 1, characterized in that, the motors I (11) and II (30) are both servo motors, controlled by a microcomputer or a programmable controller. 4. The automatic traversing patient stretcher trolley according to claim 1, characterized in that, in the guardrail rotation and locking device, the locking pin mounting holes on the guardrail legs are composed of two coaxial circular holes with different inner diameters , the hole diameter on the inner side of the guardrail leg is larger than the hole diameter on the outer side. The locking bolt (35) is divided into two parts: a nut and a screw rod. The locking bolt (35) is inserted into the locking pin mounting hole from the outer side of the guardrail leg. The locking bolt The length of the screw of (35) is greater than the thickness of the guardrail leg, the outer diameter of the screw of the locking bolt (35) is matched with the diameter of the locking pin mounting hole on the outer surface of the guardrail leg, and the retaining ring (38) and the screw of the locking bolt (35) Threaded connection and placed in the locking pin mounting hole, the spring (37) is sleeved on the screw rod of the locking pin (35) in the locking pin mounting hole, and the two ends of the spring (37) are respectively pressed against the steps and stoppers in the locking pin mounting hole. On the ring (38), under the action of the spring (37), the screw end of the locking bolt (35) is exposed outside the inner surface of the leg, and the axis pulls the locking bolt (35) outward, and the retaining ring (38) compresses the spring ( 37), the screw end of the locking bolt (35) can be retracted into the locking pin installation hole, when the guardrail (15) is locked, the screw end of the locking bolt (35) is inserted into the guardrail on the stretcher lathe frame (14) in the locking hole (1407).

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