CN218684975U - Stretcher ambulance traction device - Google Patents

Abstract

The utility model discloses an ambulance draw gear about stretcher, including the base, base one side sets up the rack, connects through a slider on the base and pulls the subassembly, pulls the subassembly and passes through motor drive gear and remove along the rack, pulls the subassembly bilateral symmetry and sets up the non return subassembly, and base central authorities are provided with the spacing seat of front wheel. The utility model has the advantages of reasonable design ingenious, in going up the wheel card with the stretcher during use and going into the non return subassembly, make the stretcher steadily get into the car under the drive of traction assembly, stop pulling the back, there is the removal before the non return subassembly can avoid the stretcher, and the wheel part card is gone into in the spacing seat of front wheel before the stretcher, avoids removing about the stretcher and moves and bounce from top to bottom, makes the stretcher keep steady in the ambulance driving process, does not influence the stretcher and goes up and down in the car simultaneously, facilitates for ambulance work.

Description

Stretcher upper and lower ambulance traction device

Technical Field

The utility model relates to a stretcher upper and lower ambulance traction device.

Background

When a stretcher on an ambulance is used for getting on the ambulance, people are generally pushed and pulled to get on and off the ambulance at present, the stretcher shakes violently in the pushing and pulling process, obvious impact is caused, and secondary injury can be caused to some patients needing to keep a stable state. The application number is 202021623724.9, the application date is 2020.08.06 chinese patent discloses an auxiliary device and an ambulance for getting on a stretcher, adopts a traction mechanism consisting of a pulley group and a motor to pull the stretcher, can improve the stability of getting on the stretcher, and reduce the possibility of secondary injury, but has no fixed structure after the stretcher is got on the vehicle, and the stretcher is easy to rock during the driving process of the vehicle, and can cause secondary injury.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a stretcher ambulance traction device can improve the stability of the stretcher getting on the bus to can fix the stretcher.

To achieve the purpose, the utility model adopts the structure that: a stretcher upper and lower ambulance traction device comprises a base, wherein the base is of a long strip-shaped chute structure, a rack is arranged on one side of the base, a traction assembly is arranged on the base, the bottom of the traction assembly is connected to the base through a sliding block, a motor and a gear are arranged in the traction assembly, the motor drives the gear, and the gear is meshed with the rack; non-return components are symmetrically arranged on two sides of the traction component and clamp wheels on the stretcher; the central authorities of base are provided with the spacing seat of front wheel, and the spacing seat of front wheel includes the fixing base, and the fixing base setting is in the base bottom, and the fixing base left and right sides symmetry is provided with limit structure, through down mutual connection between the limit structure of both sides.

The non-return assembly comprises a push wheel seat, the top surface of the push wheel seat is an arc surface, the top surface of the push wheel seat is provided with an open slot, a non-return plate is arranged in the open slot, the non-return plate is of a triangular plate structure, one end of the non-return plate is connected to one end of the open slot through a pin shaft, and the bottom of the other end of the non-return plate is connected with the bottom of the other end of the open slot through a first extension spring.

A first push-pull electromagnet is arranged in the push wheel seat, and a pull rod at one end of the first push-pull electromagnet is connected with a check plate through a connecting rod.

The push wheel seat is internally provided with a microswitch, the push wheel seat is externally provided with a signal lamp, and the microswitch is connected with the signal lamp.

Every limit structure includes a fixed cover plate, and fixed cover plate is type of calligraphy structure, and fixed cover plate fixes on the fixing base, and the opening is equipped with the breach towards the stretcher direction of getting on the bus with fixed cover plate open position correspondence on the fixing base, and the fixed cover plate below is provided with fixed stop, is equipped with fixed stop in the fixing base, and fixed stop sets up between fixing base and fixed stop, fixed stop one end is the inclined plane, and fixed stop's central authorities are equipped with a spacing hole, and down axle is connected to inclined plane one end, and the other end is connected with fixing base and fixed stop through the round pin axle, down axle's central authorities pass through the connecting rod group and connect the plug-type electro-magnet of second, are equipped with second extension spring between down axle and the fixed stop, and the fixed stop tip is equipped with the notch, and the down axle is pushed down to the notch.

The beneficial effects are as follows: the utility model has the advantages of reasonable design ingenious, in going up the wheel card with the stretcher during use and going into the non return subassembly, make the stretcher steadily get into the car under the drive of traction assembly, stop pulling the back, there is the removal before the non return subassembly can avoid the stretcher, and the wheel part card is gone into in the spacing seat of front wheel before the stretcher, avoids removing about the stretcher and moves and bounce from top to bottom, makes the stretcher keep steady in the ambulance driving process, does not influence the stretcher and goes up and down in the car simultaneously, facilitates for ambulance work.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the check assembly;

FIG. 3 is a schematic view of the front wheel retainer;

fig. 4 is a schematic view of the internal structure of the front wheel retaining bracket.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

As shown in fig. 1, the stretcher upper and lower ambulance traction device comprises a base 1, the base 1 is of a long strip-shaped chute structure, a rack 2 is arranged on one side of the base 1, a traction assembly 3 is arranged on the base 1, the bottom of the traction assembly 3 is connected to the base 1 through a sliding block, a motor and a gear are arranged in the traction assembly 3, the motor drives the gear, and the gear is meshed with the rack 2. The two sides of the traction assembly 3 are symmetrically provided with check assemblies 4, and the check assemblies 4 clamp wheels on the stretcher. The central authorities of base 1 are provided with the spacing seat of front wheel 5, and the spacing seat of front wheel 5 includes fixing base 51, and fixing base 51 sets up in base 1 bottom, and fixing base 51 left and right sides symmetry is provided with limit structure, through down axle 58 interconnect between the limit structure of both sides.

As shown in fig. 2, non return assembly 4 includes pushing away wheel seat 41, pushing away wheel seat 41 top surface and being arc surface 42, arc surface 42 one end horizontal position is low, and one end horizontal position is high, and there is an open slot one side that arc surface 42 horizontal position was low to be established, is provided with a check board 43 in the open slot, check board 43 is triangle-shaped plate body structure, and pin hub connection is passed through at open slot one end to check board 43 one end, and the other end bottom is connected through first extension spring 44 and open slot other end bottom, and when last wheel got into non return assembly 4, check board 43 was pushed down, and the position is resumeed under the effect of first extension spring 44 to the back check board 43 of waiting to go up the wheel and break away from, withstands the wheel, avoids its front and back roll.

The push wheel seat 41 is internally provided with a first push-pull electromagnet 46, a pull rod 47 at one end of the first push-pull electromagnet 46 is connected with the check plate 43 through a connecting rod 48, and when the stretcher needs to get off, the first push-pull electromagnet 46 is started to pull down the check plate 43, so that the getting-off wheel can move away.

The push wheel seat 41 is internally provided with a microswitch 45, the push wheel seat 41 is externally provided with a signal lamp, the microswitch 45 is connected with the signal lamp, and the microswitch 45 detects the approaching and the departing of the upper wheel and enables the corresponding signal lamp to be lighted.

As shown in fig. 3 and 4, each limiting structure includes a fixed cover 52, the fixed cover 52 is a concave structure, the fixed cover 52 is fixed on the fixed base 51, the opening faces the direction of getting on the stretcher, a notch is provided on the fixed base 51 corresponding to the opening of the fixed cover 52, a fixed baffle 53 is provided below the fixed cover 52, a fixed baffle 56 is provided in the fixed base 51, the fixed baffle 53 is provided between the fixed base 51 and the fixed baffle 56, one end of the fixed baffle 53 is an inclined surface, a limiting hole is provided in the center of the fixed baffle 53, after the wheel enters the non-return assembly 4, the limiting block on the front wheel of the stretcher is clamped into the limiting hole, one end of the inclined surface is connected to the lower shaft 58, the other end is connected to the fixed base 51 and the fixed baffle 56 through a pin shaft, the center of the lower shaft 58 is connected to the second push-pull type electromagnet 54 through a connecting rod group 55, a second extension spring 57 is provided between the lower shaft 58 and the fixed baffle 56, a notch is provided at the end of the fixed baffle 57, the lower shaft 58 is pressed, when the lower end of the lower wheel enters the fixed baffle 52, the lower shaft is pushed, and the lower shaft 53 can be pushed away from the fixed baffle 53, and the lower shaft can be pushed away from the second push-pull type electromagnet, and the lower shaft 53, the lower shaft can be pushed away from the fixed baffle 53, and the lower shaft can be pushed away from the lower shaft, and the lower shaft, the lower shaft can be pushed away from the fixed baffle 53.

The utility model has the advantages of reasonable design ingenious, in going up the wheel card with the stretcher during use and going into the non return subassembly, make the stretcher steadily get into the car under the drive of traction assembly, stop pulling the back, there is the removal before the non return subassembly can avoid the stretcher, and the wheel part card is gone into in the spacing seat of front wheel before the stretcher, avoids removing about the stretcher and moves and bounce from top to bottom, makes the stretcher keep steady in the ambulance driving process, does not influence the stretcher and goes up and down in the car simultaneously, facilitates for ambulance work.

The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.

Claims (5)

1. A stretcher upper and lower ambulance traction device comprises a base and is characterized in that the base is of a long strip-shaped chute structure, a rack is arranged on one side of the base, a traction assembly is arranged on the base, the bottom of the traction assembly is connected to the base through a sliding block, a motor and a gear are arranged in the traction assembly, the motor drives the gear, and the gear is meshed with the rack; the two sides of the traction assembly are symmetrically provided with check assemblies, and the check assemblies block wheels on the stretcher; the central authorities of base are provided with the spacing seat of front wheel, and the spacing seat of front wheel includes the fixing base, and the fixing base setting is in the base bottom, and the fixing base left and right sides symmetry is provided with limit structure, through down axle interconnect between the limit structure of both sides.

2. The stretcher upper and lower ambulance traction device according to claim 1, wherein said check assembly comprises a pushing wheel seat, the top surface of said pushing wheel seat is a circular arc surface, the top surface of said pushing wheel seat is provided with an open slot, a check plate is disposed in said open slot, said check plate is a triangular plate structure, one end of said check plate is connected to one end of said open slot by means of a pin, and the bottom of the other end is connected to the bottom of the other end of said open slot by means of a first extension spring.

3. The stretcher with ambulance traction device as claimed in claim 2, wherein a first push-pull electromagnet is installed in said push wheel seat, and a pull rod at one end of the first push-pull electromagnet is connected to the check plate through a connecting rod.

4. The stretcher with the ambulance traction device as claimed in claim 2, wherein a micro switch is installed inside said pushing wheel seat, a signal lamp is installed outside said pushing wheel seat, and said micro switch is connected to said signal lamp.

5. The stretcher pulling device for ambulances and getting on/off of a stretcher according to claim 1, wherein each of the position-limiting structures comprises a fixed cover plate, the fixed cover plate is a concave structure, the fixed cover plate is fixed on the fixed base, the opening of the fixed cover plate faces the direction of getting on the stretcher, a notch is formed in the fixed base corresponding to the opening of the fixed cover plate, a fixed baffle plate is arranged below the fixed cover plate, a fixed baffle plate is arranged in the fixed base, the fixed baffle plate is arranged between the fixed base and the fixed baffle plate, one end of the fixed baffle plate is an inclined surface, a position-limiting hole is formed in the center of the fixed baffle plate, one end of the inclined surface is connected with the down shaft, the other end of the inclined surface is connected with the fixed base and the fixed baffle plate through a pin shaft, the center of the down shaft is connected with the second push-pull electromagnet through a connecting rod set, a second tension spring is arranged between the down shaft and the fixed baffle plate, and a notch is formed in the end of the fixed baffle plate and presses the down shaft.

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