CN113974991B - Balance car stretcher with folding and shrinking functions - Google Patents

Abstract

The invention relates to a balance car stretcher with folding and shrinking functions, which comprises a car body, a folding stretcher, self-locking support frames and expansion brackets, wherein the folding stretcher is arranged at the left side and the right side of the front end of the car body, the support frames are arranged at the lower end of the folding stretcher, the folding stretcher is connected with connecting rods on the car body, the car body comprises a bottom plate, travelling wheels, a mud guard, a bearing pedal, a direction control rod, a handlebar and connecting rods, the self-locking support frames comprise support rods, piston rods and rod end joints, the folding stretcher comprises a first folding plate, a second folding plate, a third folding plate, a crank, a rotating wheel, stretcher cloth and a safety binding belt, and the expansion brackets comprise expansion rods, expansion screws, connecting pipes, positioning baffle plates and raised ferrules.

Description

A balance car stretcher with folding and shrinking functions

technical field

The invention relates to the field of medical emergency rescue, in particular to a balance car stretcher with folding and shrinking functions.

Background technique

In daily medical rescue, stretchers play a very important role. There are many types of stretchers, mainly lifting single frame, wheel stretcher, scoop stretcher, negative pressure inflatable cushion fixed stretcher, basket stretcher, roll stretcher, etc. , and these stretchers have more or less limitations, which can be roughly divided into the following aspects:

(1) The volume is relatively large when moving, and at least two people are required to complete the handling work;

(2) It is difficult to fold and shrink, and cannot cross in narrow or crowded roads, thus delaying rescue time;

(3) Some foldable stretchers often have no obvious folding effect, and can only be folded to the length of the stretcher, and it is difficult to shrink in the width direction;

(4) It is difficult to properly adjust the size of the stretcher according to the actual body shape of the wounded, which affects the use effect.

In order to improve the above problems, the present invention provides a balance bike stretcher with folding and shrinking functions.

Contents of the invention

In order to solve the problems of traditional stretchers such as large volume, difficulty in shrinking and moving, inconspicuous folding effect, and difficulty in flexible adjustment, the present invention provides a balance car stretcher with folding and shrinking functions, which greatly shortens the time for patients in the transportation process , more convenient for relevant rescue personnel to use, and improve rescue efficiency.

In order to achieve the above object, the technical solution adopted in the present invention is: a balance car stretcher with folding and shrinking functions, including a car body, a folding stretcher, a self-locking support frame and a telescopic frame, the left and right sides of the front end of the car body A folding stretcher is installed, and a support frame is installed at the lower end of the folding stretcher, and the folding stretcher is connected with the connecting rod on the vehicle body; wherein:

The car body includes, base plate, traveling wheels, fenders, bearing pedals, direction joystick, handlebars, connecting rods, the left and right ends of the base plate are symmetrically installed with traveling wheels through hinges, and the inner side of the symmetrical traveling wheels is equipped with fenders, A load-bearing pedal is installed on the top of the base plate, and a direction joystick is installed on the upper end of the load-bearing pedal. One end of the connecting rod is welded to the direction joystick, and handlebars are symmetrically installed on the left and right sides of the upper end of the direction joystick. The car body moves.

Further, the self-locking support frame includes a support rod, a piston rod, and a rod end joint, and the number of the self-locking support frame is four, and the inside of the support rod includes an inflation pressure tube, an isolation piston, a shut-off valve, and a moving piston. One end of the piston rod is installed in the support rod and can slide inside the support rod. The connection mode of the self-locking support frame between the second folding plate and the third folding plate is that the rod end joint on the support rod and the second folding plate Connected by bolts, the rod end joint on the piston rod is connected to the third folding plate by bolts, the connection mode of the self-locking support frame between the first folding plate and the direction control rod is that the rod end joint on the support rod is connected to the third folding plate The first folding plate is connected by bolts, and the rod end joint on the piston rod is connected with the direction control rod by bolts. When the support rod is stretched by the folding stretcher, the third folding plate only needs to be pushed outward slightly by human force, and the self-locking support frame will be It can be stretched and self-locked to play a supporting role. When the folding stretcher shrinks, you only need to manually push the third folding plate inward slightly, and the self-locking support frame will be in a contracted state. state, greatly saving the occupied space.

Further, the cut-off valve inside the support rod communicates with the oil passage of the rod chamber and the rodless chamber.

Further, the high-pressure gas inside the support rod is sealed in the cylinder, and part of the oil in the cylinder acts as a hydraulic damper to isolate the piston from gas and oil, so that the rigidity of the self-locking support frame is enhanced.

Further, the folding stretcher includes a first folding board, a second folding board, a third folding board, a crank, a rotating wheel, a stretcher cloth, and safety straps, and the number of the three kinds of folding boards is two, and each folding board is front and rear. Both sections are provided with connecting holes, the front connecting hole of the first folding board is connected with the rear connecting hole of the second folding board through a hinge, the inner side of the first folding board and the second folding board is provided with an opening slot, and the stretcher cloth passes through the opening slot and the folding The plates are connected, the connecting hole at the front end of the second folding plate is connected with the connecting hole at the rear end of the third folding plate through a hinge, the front end of the third folding plate is connected with a crank, and the end of the crank is equipped with a rotating wheel through a hinge. The number of rotating wheels is four. The above structure realizes the contraction and extension of the stretcher, and when the stretcher is stretched, it forms an arc-shaped structure, which is compatible with the natural curvature of the human body in a supine position, and the arc-shaped surface ensures that the overall center of gravity of the stretcher is consistent with the load. The center of gravity of the stretcher itself basically matches.

Further, the safety strap is installed on the inside of the first folding plate and the second folding plate through bolts, has certain elasticity, and is in a contracted state when not in use.

Further, the telescopic frame includes a telescopic rod, an expansion screw, a connecting pipe, a positioning baffle, and a raised ferrule, and the number of the telescopic frame is two, wherein an expansion screw is installed at one end of the telescopic rod, and an expansion screw is installed at one end of the telescopic rod. In the connecting pipe, the other end of the telescopic rod is equipped with a positioning baffle and a raised collar. When the telescopic rod shrinks or stretches, it only needs to rotate the raised collar, and the rotating raised collar makes the telescopic rod move freely in the connecting pipe. state, when the telescopic rod reaches the desired length, the raised collar can be rotated in the opposite direction to fix its position.

Further, there are scales on the telescopic rod, which makes the adjustment process more rapid and convenient, and the adjustment result is more accurate.

Further, the connecting pipe is connected to the direction control rod through welding, and the self-locking support frame is connected to the direction control rod through bolts, so that the movement of the vehicle body drives the movement of the folding stretcher.

Compared with the prior art, the present invention has the following advantages:

1. The invention is light in weight, easy to operate, and moves quickly in the contracted state;

2. The present invention is small in volume, saves space and has a stable structure;

3. The present invention can be folded and contracted. In a narrow or crowded road section, when in danger, adjusting to the contracted state can greatly shorten the time required to reach the rescue site, and adjusting to the extended state can greatly shorten the time for the injured during transportation. time and rescue resources;

4. The present invention saves manpower, and it only needs one rescuer to send the injured to the medical treatment point, and its electric device can also assist the rescuer.

Description of drawings

Further description of the present invention will be implemented below in conjunction with the accompanying drawings.

Fig. 1 is the schematic diagram of the three-dimensional structure of the present invention in the contracted state;

Fig. 2 is a schematic diagram of the three-dimensional structure of the present invention in an extended state;

Fig. 3 is a side view of the present invention in a contracted state;

Fig. 4 is a cross-sectional view of the self-locking support frame of the present invention;

Fig. 5 is a top view of the present invention in a stretched and width-contracted state;

Fig. 6 is a top view of the present invention in a stretched and width-elongated state;

Fig. 7 is a structural schematic diagram of an expansion screw connected to a support rod in the present invention;

Fig. 8 is a partially enlarged view of the telescopic frame of the present invention.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with FIG. 1 to FIG. 8 .

A balance car stretcher with folding and shrinking functions, including a car body 1, a folding stretcher 2, a self-locking support frame 3 and a telescoping frame 4, and the left and right sides of the front end of the car body 1 are equipped with a folding stretcher 2 and a folding stretcher 2 A self-locking support frame 3 is installed on the top, and the folding stretcher 2 is connected with the connecting rod 17 on the car body 1; wherein:

Described vehicle body 1 comprises, base plate 11, walking wheel 12, fender 13, bearing pedal 14, direction joystick 15, handlebar 16, connecting rod 17, base plate 11 left and right ends are symmetrically installed with walking wheel 12 by hinge, Fender 13 is installed on the inner side of symmetrical walking wheel 12, load-bearing pedal 14 is installed on the upper end of base plate 11, and direction joystick 15 is installed on the upper end of load-bearing pedal 14, and one end of connecting rod 17 is welded with direction joystick 15, and direction joystick 15 upper end left and right sides Handlebars 16 are symmetrically installed on both sides, and the vehicle body 1 is driven to move through the mutual cooperation of the handlebars 16 and the running wheels 12 .

The self-locking support frame 3 includes a support rod 31, a piston rod 32, a rod end joint 33, and the number of the self-locking support frame 3 is four, wherein the support rod 31 includes an inflation pressure tube 311, an isolation piston 312, a cut-off Valve 313, moving piston 314, one end of the piston rod 32 is installed in the support rod 31 and can slide inside the support rod 31, the connection mode of the self-locking support frame 3 between the second folding plate 22 and the third folding plate 23 is , the rod end joint 33 on the support rod 31 is connected with the second folding plate 22 by bolts, the rod end joint 33 on the piston rod 32 is connected with the third folding plate 23 by bolts, and the self-locking support frame 3 is connected on the first folding plate The connection mode between 21 and the direction joystick 15 is that the rod end joint 33 on the support rod 31 is connected with the first folding plate 21 by bolts, and the rod end joint 33 on the piston rod 32 is connected with the direction joystick 15 by bolts, When the stretcher 2 is stretched, the support rod 31 only needs to push the third folding plate 23 outward slightly with artificial force, and the self-locking support frame 3 can be stretched and self-locked to play a supporting role. , only need to push the third folding plate 23 slightly inward, the self-locking support frame 3 is in the contracted state, the whole process is convenient to retract and unfold, and in the contracted state, the occupied space is greatly saved.

The cut-off valve 313 inside the support rod 31 communicates with the oil passage of the rod chamber and the rodless chamber.

The high-pressure gas inside the support rod 31 is sealed in the cylinder 314, and part of the oil in the cylinder 314 acts as a hydraulic damper, and the isolation piston 312 isolates the gas and oil, so that the rigidity of the self-locking support frame 3 is enhanced.

The folding stretcher 2 comprises a first folding plate 21, a second folding plate 22, a third folding plate 23, a crank 24, a rotating wheel 25, a stretcher cloth 26, a safety strap 27, and the number of the three folding plates is two. Both front and rear sections of each folding board are provided with connecting holes, the front connecting holes of the first folding board 21 and the rear connecting holes of the second folding board 22 are connected by hinges, and the inner sides of the first folding board 21 and the second folding board 22 are provided with openings Slot, the stretcher cloth 26 is connected with the first folding plate 21 and the second folding plate 22 through the open groove, the connecting hole at the front end of the second folding plate 22 is connected with the connecting hole at the rear end of the third folding plate 23 through a hinge, and the front end of the third folding plate 23 It is connected with the crank 24, and the free end of the crank 24 is hinged with a rotating wheel 25. The number of the rotating wheels 25 is four. Through the above structure, the contraction and extension of the stretcher is realized, and when the stretcher is stretched, it forms an arc-shaped structure. The natural curvature of the human body in the supine position is suitable, and the arc surface ensures that the overall center of gravity of the stretcher after the load is added is basically consistent with the center of gravity of the stretcher itself.

The safety strap 27 is installed on the inside of the first folding plate 21 and the second folding plate 22 through bolts, has a certain degree of elasticity, and is in a contracted state when not in use.

The telescopic frame 4 comprises a telescopic rod 41, an expansion screw 42, a connecting pipe 43, a positioning baffle plate 44, and a protruding collar 45, and the number of the telescopic frame 4 is two, wherein an expansion screw 42 is installed at one end of the telescopic rod 41, and an expansion screw 42 is installed on one end of the telescopic rod. 41 has one end of the expansion screw 42 installed in the connecting pipe 43, and the other end of the telescopic rod 41 is equipped with a positioning baffle 44 and a raised collar 45, and the telescopic rod 41 only needs to rotate the raised collar 45 when shrinking or stretching Rotate the protruding collar 45 so that the telescopic rod 41 is in a state of free translation in the connecting pipe 43. When the telescopic rod 41 reaches the desired length, rotate the protruding ferrule 45 in the opposite direction to fix the telescopic rod 41. Location.

The telescopic rod 41 is provided with a scale, which makes the adjustment process faster and more convenient, and the adjustment result is more accurate.

The connecting pipe 43 is connected to the direction control lever 15 by welding, and the self-locking support frame 3 is connected to the direction control lever 15 through bolts, so that the movement of the vehicle body 1 drives the movement of the folding stretcher 2 .

When it is necessary to use the present invention to quickly reach the rescue position of the injured, it is only necessary to adjust the raised collar 45 so that the telescopic rod 41 shrinks to the minimum distance, and the telescopic rod 41 drives the foldable stretcher 2 so that the width of the foldable stretcher 2 is shortened. Forcefully push the third folding plate 23 towards the body 1 of the self-balancing vehicle, and the folding stretcher 2 can return to the contracted state. The unique folding structure makes it take up little space and is light in weight after being folded, and will not affect the normal running of the balancing vehicle body 1 at all.

After arriving at the injured person's position, push the third folding plate 23 away from the balance vehicle body 1 with light force, and the folding stretcher 2 can return to the stretched state, and then rotate the raised collar 45 to make the telescopic rod 41 is in the state of free movement. After determining the specific stretcher width according to the size of the wounded, rotate the raised collar 45 in the opposite direction, and the telescopic rod 41 is fixed. The wounded is lying behind the stretcher cloth 26 and fixed with a safety strap 27 Ensure that in the moving process, the injured person's body is not outside the foldable stretcher 2 .

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the above-mentioned embodiment is only a preferred embodiment of the present invention, and the present invention is not limited by the above-mentioned embodiment. Under the premise of the spirit and scope of the present invention, the present invention also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention, and the protected scope of the present invention is defined by the appended claims and its equivalent Effect definition.

Claims (1)

1. The balance car stretcher with the folding and shrinking functions comprises a car body (1), a folding stretcher (2), a self-locking support frame (3) and telescopic frames (4), wherein the folding stretcher (2) is arranged on the left side and the right side of the front end of the car body (1), and the self-locking support frame (3) is arranged on the folding stretcher (2); wherein:

the vehicle body (1) comprises a bottom plate (11), travelling wheels (12), a mud guard (13), a bearing pedal (14), a direction control lever (15) and a handlebar (16), wherein the travelling wheels (12) are symmetrically arranged at the left end and the right end of the bottom plate (11) through hinges, the mud guard (13) is arranged at the inner side of each symmetrical travelling wheel (12), the bearing pedal (14) is arranged at the upper end of the bottom plate (11), the direction control lever (15) is arranged at the upper end of the bearing pedal (14), and the handlebar (16) is symmetrically arranged at the left side and the right side of the upper end of the direction control lever (15);

the folding stretcher (2) comprises a first folding plate (21), a second folding plate (22), a third folding plate (23), a crank (24), rotating wheels (25) and stretcher cloth (26), wherein the number of the three folding plates is two, the front section and the rear section of each folding plate are provided with connecting holes, the front end connecting holes of the first folding plate (21) are connected with the rear end connecting holes of the second folding plate (22) through hinges, the inner sides of the first folding plate (21) and the second folding plate (22) are provided with open slots, the stretcher cloth (26) is connected with the first folding plate (21) and the second folding plate (22) through the open slots, the front end connecting holes of the second folding plate (22) are connected with the rear end connecting holes of the third folding plate (23) through hinges, the front end of the third folding plate (23) is connected with the crank (24), the free end of the crank (24) is provided with the rotating wheels (25) through hinges, the number of the rotating wheels (25) is four, and the safety binding plate (27) is arranged on the inner sides of the first folding plate (21) and the second folding plate (22) through bolts;

the self-locking type support frame (3) comprises a support rod (31), a piston rod (32) and rod end joints (33), the number of the self-locking type support frames (3) is four, the inside of the support rod (31) further comprises an inflation pressure pipe (311), an isolation piston (312), a stop valve (313) and a moving piston (314), one end of the piston rod (32) is arranged in the support rod (31) and can slide in the support rod (31), the connection mode of the self-locking type support frames (3) between the second folding plate (22) and the third folding plate (23) is that the rod end joints (33) on the support rod (31) are connected with the second folding plate (22) through bolts, the rod end joints (33) on the piston rod (32) are connected with the third folding plate (23) through bolts, and the connection mode of the self-locking type support frames (3) between the first folding plate (21) and the direction control rod (15) is that the rod end joints (33) on the support rod (31) are connected with the first folding plate (21) through bolts, and the rod end joints (33) on the piston rod (32) are connected with the direction control rod (15) through bolts;

the expansion bracket (4) comprises expansion rods (41), expansion screws (42), connecting pipes (43), positioning baffle plates (44) and protruding ferrules (45), wherein the number of the expansion brackets (4) is two, one expansion bracket (4) is arranged between the first folding plates (21) and the connecting pipe (43) of the one expansion bracket (4) is connected with the direction control rod (15) through welding, the other expansion bracket (4) is arranged between the third folding plates (23), the expansion screws (42) are arranged at one end of each expansion rod (41), one end of each expansion rod (41) is provided with the expansion screw (42) and is arranged in the corresponding connecting pipe (43), the positioning baffle plates (44) and the protruding ferrules (45) are arranged at the other end of each expansion rod (41), the expansion rods (41) at two ends of the connecting pipe (43) of the one expansion bracket (4) are respectively connected with the two first folding plates (21) through the positioning baffle plates (44), and the expansion rods (41) at two ends of the connecting pipe (43) of the other expansion bracket (4) are respectively connected with the third folding plates (23) through the positioning baffle plates (44).

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