Buffering anti-vibration device for medical ambulance

Abstract

The buffering anti-vibration device for the medical ambulance comprises a platform, two pairs of hinge seats are symmetrically arranged on the top face of the platform, the hinge seats are hinged to the bottom ends of cylinder bodies in shock absorbers, the top ends of piston rods of the shock absorbers on the same side are hinged to the two ends of the outer side face of a side strip rail, and channels are formed in the opposite faces of the two side strip rails. The channels are slidably connected with protruding columns on the two sides of a stretcher with lifting wheel seats at the bottom, the inlet ends of the channels are closed through abutting plates, and a draw-out type slope plate mechanism for the stretcher to get on is arranged in the platform. According to the device, the stretcher can be fixed between the two side strip rails in a suspended mode, buffering and damping are conducted through the dampers connected with the side strip rails, the slope plate mechanism in the device can be pulled out and folded into a slope, the stretcher is assisted in getting on and off under the cooperation of the lifting wheel seats, and the stretcher is further prevented from bumping.

Description

Technical Field

[0001] The utility model relates to the technical field of ambulance equipment, in particular to a buffering and vibration-proof device for a medical ambulance. Background Art

[0002] The human body will be affected by the impact force when it is bumped, which may cause the organs to move or be injured. Severe bumps may cause the stomach to move and feel uncomfortable, and even cause vomiting or nausea. Excessive bumps may cause heart failure, which is more serious for people who already have heart problems. Especially for middle-aged and elderly patients, severe bumps may aggravate conditions such as cerebral hemorrhage and cause some irreversible complications. However, during the rescue process, medical staff often need to carry patients on stretchers to the ambulance compartment for transfer and treatment. When the road surface is uneven and the stretcher is getting on and off the vehicle, it may cause more severe vibrations, which will have an adverse effect on the patient. A buffering and shockproof device is needed to solve the above problems. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a buffering and anti-vibration device for a medical ambulance, comprising a platform, wherein two pairs of hinged seats are symmetrically arranged on the top surface of the platform, the hinged seats are hinged to the bottom end of the cylinder body in the shock absorber, the top end of the piston rod of the shock absorber on the same side is hinged to the two ends of the outer side surface of the side rail, grooves are opened on the opposite surfaces of the two side rails, the grooves are slidably connected to the two side convex columns of the stretcher with the lifting wheel seat at the bottom, the entrance end of the groove is closed by a stop plate, and the platform has a built-in removable ramp mechanism for the stretcher to get on the vehicle.

[0004] Furthermore, the shock absorber includes a shock-absorbing spring, a shock-absorbing spring ring is arranged at the upper end of the piston rod, the two ends of the shock-absorbing spring are respectively in contact with the ring body at the end of the piston rod and the top surface of the cylinder body, the disk body at the bottom end of the piston rod is slidably connected with the inner cavity of the cylinder body, the disk body has an oil hole, the inner cavity is filled with engine oil, the lower side of the inner cavity is connected to the outer ring cavity of the cylinder body, and air is injected into the top of the outer ring cavity through the air injection pipe.

[0005] Furthermore, the lifting wheel seat includes a lifting motor, which is installed on a sleeve seat at the bottom of the stretcher. A threaded shaft is vertically arranged in the sleeve seat. The top of the threaded shaft is rotatably connected to the bottom of the stretcher. The gear on the threaded shaft body is meshed with the gear on the output end of the lifting motor. The threaded shaft is threadedly connected to the top surface of the lifting column. The body of the lifting column is vertically slidably connected to the sleeve seat, and the bottom of the lifting column is installed at the center of the top surface of the pulley plate.

[0006] Furthermore, the ramp mechanism includes a sliding plate, rollers on both sides of the sliding plate slide in slideways on both sides of the platform, the ends of the sliding plate are hinged to the ramp, the two plates can be retracted into the cavity at the bottom of the platform, and the ramp surface is provided with buckles.

[0007] Furthermore, spring seats are provided on both sides of the abutment plate, and springs in the spring seats extend into the grooves to abut against the convex columns at the rear side of the stretcher, and the abutment plate is fixed between the rails at both sides by means of latches.

[0008] Furthermore, an adjustment groove is symmetrically opened on one side of the top surface of the platform, and the adjustment groove is slidably connected to the sliding block at the bottom of the hinge seat and is positioned by bolts.

[0009] Furthermore, a plurality of heat sinks are arranged around the outer wall of the cylinder body.

[0010] The beneficial effects of the utility model are as follows: the device can suspend and fix the stretcher between the two side rails, and cushion it through the shock absorber connected to the side rails. The shock absorber performs double shock absorption on the stretcher through the shock-absorbing spring and the compressed oil. The slider of the shock absorber at one end can slide in the adjustment groove to adjust the height of the stretcher. The ramp mechanism in the device can be drawn out and folded into a ramp, which assists the stretcher to get on and off the vehicle with the cooperation of the lifting wheel seat, and further avoids the stretcher from bumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0013] Figure 3 This is a schematic diagram of loading a stretcher in the utility model;

[0014] Figure 4 It is a structural schematic diagram of the shock absorber in the utility model.

[0015] The accompanying drawings are marked as follows: 1. Platform; 101. Slide; 102. Adjustment groove; 2. Articulated seat; 3. Cylinder body; 301. Inner cavity; 302. Outer ring cavity; 303. Air injection pipe; 304. Heat sink; 4. Piston rod; 401. Disc body; 402. Oil hole; 5. Side rail; 501. Groove; 6. Stretcher; 601. Boss; 602. Sleeve seat; 7. Back plate; 8. Shock-absorbing spring; 9. Lifting motor; 10. Threaded shaft; 11. Lifting column; 12. Pulley plate; 13. Sliding plate; 14. Roller; 15. Ramp plate; 1501. Handle; 16. Spring; 17. Latch. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] like Figures 1 to 4 As shown, a buffering and anti-vibration device for a medical ambulance includes a platform 1, a pair of adjustment grooves 102 are symmetrically opened on one side of the top surface of the platform 1, the adjustment grooves 102 are slidably connected to the slider at the bottom of the articulated seat 2, and are positioned by bolts, and a pair of fixed articulated seats 2 are provided on the other side of the top surface of the platform 1. Each articulated seat 2 is articulated to the bottom end of the cylinder body 3 in the shock absorber, and the top end of the piston rod 4 of the shock absorber on the same side is articulated to the two ends of the outer side surface of the side rail 5. The shock absorber includes a shock-absorbing spring 8, and the shock-absorbing spring 8 is ringed on the upper end of the piston rod 4. The two ends of the shock-absorbing spring 8 respectively contact the ring body at the end of the piston rod 4 and the top surface of the cylinder body 3. The disk body 401 at the bottom end of the piston rod 4 is slidably connected with the inner cavity 301 of the cylinder body 3. The disk body 401 is provided with an oil hole 402, and the inner cavity 301 is filled with engine oil. The lower side of the inner cavity 301 is connected to the outer ring cavity 302 of the cylinder body 3, and air is injected into the top of the outer ring cavity 302 through the air injection pipe 303. A plurality of circles of heat sinks 304 are arranged on the outer wall of the cylinder body 3 to assist in heat dissipation of the engine oil.

[0020] In this embodiment, grooves 501 are formed on opposite surfaces of the two side rails 5, and the grooves 501 are slidably connected to the two side bosses 601 of the stretcher 6 with a lifting wheel seat at the bottom. The lifting wheel seat includes a lifting motor 9, and the lifting motor 9 is installed on a sleeve seat 602 at the bottom of the stretcher 6. A threaded shaft 10 is vertically arranged in the sleeve seat 602. The top of the threaded shaft 10 is rotatably connected to the bottom of the stretcher 6. The shaft gear of the threaded shaft 10 is meshed with the gear at the output end of the lifting motor 9. The threaded shaft 10 is threadedly connected to the top surface of the lifting column 11. The column body of the lifting column 11 is vertically slidably connected to the sleeve seat 602, and the bottom of the lifting column 11 is installed at the center of the top surface of the pulley plate 12.

[0021] In this embodiment, the entrance end of the channel 501 is closed by the plate 7, and spring seats are provided on both sides of the plate 7. The spring 16 in the spring seat extends into the channel 501 and contacts the rear convex column 601 of the stretcher 6. The plate 7 is fixed between the rails 5 on both sides by the latch 17. The platform 1 is built with a removable ramp mechanism for the stretcher 6 to get on the vehicle. The ramp mechanism includes a sliding plate 13. The rollers 14 on both sides of the sliding plate 13 slide in the slideways 101 on both sides of the platform 1. The ends of the sliding plate 13 are hinged to the ramp 15. The two plates can be retracted into the bottom cavity of the platform 1. The surface of the ramp 15 is provided with a buckle 1501.

[0022] The working principle of the utility model is as follows:

[0023] The ramp mechanism is pulled out from the bottom cavity of the platform 1 by means of the buckle 1501, and then the ramp 15 is bent into a floor ramp. With the help of the ramp, the stretcher 6 carrying the patient is pushed into the ambulance compartment, so that the convex columns 601 on both sides slide into the corresponding grooves 501. After the stretcher 6 is completely pushed into the side rails 5, the support plate 7 is fixed between the two side rails 5 by the latch 17. At this time, the spring 16 extends into the groove 501 and contacts the rear convex column 601 of the stretcher 6. The lifting motor 9 is started to drive the lifting column 11 to be retracted into the sleeve seat 602, so that the stretcher 6 is suspended and fixed between the two side rails 5. When encountering bumps and vibrations, the shock-absorbing spring 8 and the spring 16 can reduce shock for the stretcher 6 in different directions. At the same time, the disc 401 slides in the cylinder 3, and the engine oil flows in the inner cavity 301 and the outer ring cavity 302 through the oil hole 402, and interacts with the injected air, thereby converting the kinetic energy generated by the impact into heat energy and discharging it from the heat sink 304, thereby reducing the bumps on the stretcher 6.

[0024] The utility model can suspend and fix the stretcher 6 between the two side rails 5, and buffer and reduce vibration through the shock absorber connected to the side rails 5. The ramp mechanism in the device can be drawn out and folded into a ramp, and the stretcher 6 is assisted to get on and off the vehicle under the cooperation of the lifting wheel seat, so as to further avoid the stretcher 6 from bumping.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A buffer and vibration-proof device for a medical ambulance, comprising a platform (1), characterized in that: The top surface of the platform (1) is symmetrically provided with two pairs of hinged seats (2), the hinged seats (2) are hinged to the bottom end of the cylinder (3) in the shock absorber, the top end of the piston rod (4) of the shock absorber on the same side is hinged to the two ends of the outer side surface of the side rail (5), the opposite surfaces of the two side rails (5) are provided with grooves (501), the grooves (501) are slidably connected to the two side convex columns (601) of the stretcher (6) with the lifting wheel seat at the bottom, the entrance end of the groove (501) is closed by a stop plate (7), and the platform (1) is built-in with a removable ramp mechanism for the stretcher (6) to get on the vehicle.

2. A buffer and vibration-proof device for a medical ambulance according to claim 1, characterized in that: The shock absorber comprises a shock absorbing spring (8), the shock absorbing spring (8) being arranged in a ring on the upper end of the piston rod (4), the two ends of the shock absorbing spring (8) respectively contacting the ring body at the end of the piston rod (4) and the top surface of the cylinder body (3), the disc body (401) at the bottom end of the piston rod (4) being slidably connected with the inner cavity (301) of the cylinder body (3), the disc body (401) being provided with an oil hole (402), the inner cavity (301) being filled with engine oil, the lower side of the inner cavity (301) being connected to the outer ring cavity (302) of the cylinder body (3), and air being injected into the top of the outer ring cavity (302) through an air injection pipe (303).

3. The buffer and vibration-proof device for medical ambulance according to claim 1, characterized in that: The lifting wheel seat comprises a lifting motor (9), the lifting motor (9) is mounted on a sleeve seat (602) at the bottom of the stretcher (6), a threaded shaft (10) is vertically arranged in the sleeve seat (602), the top end of the threaded shaft (10) is rotatably connected to the bottom of the stretcher (6), the shaft gear of the threaded shaft (10) is meshed with the gear at the output end of the lifting motor (9), the threaded shaft (10) is threadedly connected to the top surface of the lifting column (11), the column body of the lifting column (11) is vertically slidably connected to the sleeve seat (602), and the bottom of the lifting column (11) is mounted at the center of the top surface of the pulley plate (12).

4. The buffer and vibration-proof device for medical ambulance according to claim 1, characterized in that: The ramp mechanism comprises a sliding plate (13), rollers (14) on both sides of the sliding plate (13) slide in slideways (101) on both sides of the platform (1), the ends of the sliding plate (13) are hinged to the ramp (15), the two plates can be retracted into the bottom cavity of the platform (1), and the surface of the ramp (15) is provided with a buckle (1501).

5. The buffer and vibration-proof device for medical ambulance according to claim 1, characterized in that: The abutment plate (7) is provided with spring seats on both sides, and the springs (16) in the spring seats extend into the groove (501) to contact the rear convex columns (601) of the stretcher (6), and the abutment plate (7) is fixed between the two side rails (5) by means of latches (17).

6. The buffer and vibration-proof device for medical ambulance according to claim 1, characterized in that: An adjustment groove (102) is symmetrically formed on one side of the top surface of the platform (1), and the adjustment groove (102) is slidably connected to a slider at the bottom of the hinge seat (2) and is positioned by bolts.

7. The buffer and vibration-proof device for medical ambulance according to claim 1, characterized in that: The outer wall surface of the cylinder body (3) is provided with a plurality of circles of heat sinks (304).

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