Stretcher vehicle for ambulance
Technical Field
The utility model belongs to the field of medical instruments, relates to a stretcher vehicle, and particularly relates to a stretcher vehicle for an ambulance.
Background
With the global spread of new coronavirus pneumonia epidemic situation and the increasing aging problem, the demand for patients to carry mobile vehicles is increasing. Patient transport is a prerequisite for the beginning of formal treatment or nursing work, so the convenience, practicality and efficiency of the vehicle used for transporting patients are of great importance. The stretcher vehicle is used as main carrying equipment in the moving process of rescuing and transporting patients, has the characteristics of flexibility, light weight, less required operators and the like, and can carry and transfer the patients in a short time by using the stretcher vehicle. The stretcher vehicle for the ambulance can not only transport the patient, but also get on and off the ambulance along with the patient, thereby saving the number of people and labor required by transportation to a certain extent. Currently, the existing stretcher products are mainly divided into two types, namely a common transportation stretcher and a stretcher capable of getting on and off an ambulance. The common transfer stretcher vehicle can only realize the function of transferring patients, and needs to be carried by a plurality of people when an ambulance goes up and down, and a brake device is not arranged on a common wheel, so that the ambulance needs to be parked on a ramp by external force; the stretcher capable of getting on and off the ambulance generally has a complex structure, and wearing parts such as springs and clamping balls are used in the locking mechanism, so that the manufacturing cost and the later maintenance cost are high.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems in the background art, the present invention provides a stretcher for ambulance which is easy to operate and has a simple structure.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a stretcher vehicle for an ambulance, characterized in that: the stretcher vehicle for the ambulance comprises a bed body frame, a retractable supporting leg, a fixed supporting leg and a retractable supporting leg limiting device; the bed body frame is integrally rectangular; the fixed supporting legs are arranged at four corners of the bed body frame; the retractable supporting legs are connected with the bed body frame along the long edge direction of the bed body frame through rotating part connecting rods and rotate around the axial direction of the rotating part connecting rods; the length of the retractable supporting leg is greater than that of the fixed supporting leg; the retractable supporting leg limiting device is arranged on the bed body frame, and when the retractable supporting leg is opened, the retractable supporting leg limiting device is used for limiting and locking the retractable supporting leg.
Preferably, the retractable supporting leg adopted by the utility model comprises a front leg and a front leg connecting rod; one end of the front leg connecting rod is sleeved on a rotating piece connecting rod fixedly connected with the bed body frame, and the other end of the front leg connecting rod is connected with the middle part of the front leg; the front leg connecting rod rotates around the axial direction of the rotating part connecting rod; the bottom of the front leg is provided with a moving wheel; when the retractable supporting leg is opened, the top of the front leg is limited and locked by the retractable supporting leg limiting device.
Preferably, the retractable supporting leg adopted by the utility model further comprises a rear leg and a rear leg connecting rod; one end of the rear leg connecting rod is sleeved on a rotating piece connecting rod fixedly connected with the bed body frame, and the other end of the rear leg connecting rod is connected with the middle part of the rear leg; the rear leg connecting rod rotates around the axial direction of the rotating part connecting rod; the bottom of the rear leg is provided with a moving wheel; when the retractable supporting leg is opened, the retractable supporting leg limiting device limits and locks the top of the rear leg; the rear legs and the front legs are sequentially arranged along the long edge direction of the bed body frame.
Preferably, the moving wheels at the bottom of the front legs and the moving wheels at the bottom of the rear legs used in the present invention are universal wheels.
Preferably, the universal wheel used in the present invention is a braked universal wheel.
Preferably, the limiting device for the telescopic support leg comprises a first sliding rail rod and a second sliding rail rod which are arranged along the long edge direction of the bed body frame; the first sliding track rod and the second sliding track rod are oppositely arranged; the retractable supporting leg moves along the axial direction of the first sliding track rod and the axial direction of the second sliding track rod; the second sliding track rod is provided with a limiting transmission rod, a limiting pin and a control handle; the control handle and the limiting pin are arranged on the second sliding track rod along the long edge direction of the bed body frame through a pin shaft; a limit transmission rod is arranged between the control handle and the limit pin; when the retractable supporting leg is opened, the control handle drives the limiting pin to rotate around the axial direction of the pin shaft fixed by the limiting pin and the second sliding track rod through the limiting transmission rod and abuts against the retractable supporting leg; when the retractable supporting leg is retracted, the control handle drives the limiting pin to rotate around the axial direction of the pin shaft fixed by the limiting pin and the second sliding track rod through the limiting transmission rod and keeps away from the retractable supporting leg.
Preferably, the fixed supporting leg adopted by the utility model comprises directional wheel connecting rods arranged at four corners of the bed body frame, and directional wheels are arranged at the bottoms of the directional wheel connecting rods.
Preferably, the stretcher for ambulance used in the present invention further comprises a liftable head frame provided on the bed frame.
Preferably, the liftable head frame adopted by the utility model comprises a head raising frame and a hydraulic support rod; the head raising frame is arranged on the bed body frame through a hydraulic support rod and pin shafts at two ends.
Preferably, the bed frame used in the present invention further comprises a reinforcing cross bar arranged inside the bed frame along the short side direction of the bed frame.
The utility model has the advantages that:
the utility model provides a stretcher vehicle for an ambulance, which comprises a bed body frame, a retractable supporting leg, a fixed supporting leg and a retractable supporting leg limiting device, wherein the bed body frame is provided with a bed body frame; the bed body frame is rectangular as a whole; the fixed supporting legs are arranged at four corners of the bed body frame; the retractable supporting legs are connected with the bed body frame along the long edge direction of the bed body frame through the rotating part connecting rods and rotate around the axial direction of the rotating part connecting rods; the length of the retractable supporting leg is greater than that of the fixed supporting leg; the retractable supporting leg limiting device is arranged on the bed body frame, and when the retractable supporting leg is opened, the retractable supporting leg limiting device is used for limiting and locking the retractable supporting leg. The stretcher vehicle for the ambulance provided by the utility model has the advantages that due to the action of the retractable supporting legs, the whole stretcher vehicle for the ambulance is supported on the ground, when a patient needs to be transferred to the ambulance, the retractable supporting legs move and are stopped against the tail part of the ambulance, at the moment, the retractable supporting leg limiting devices are shifted, the retractable supporting legs are not limited by the retractable supporting leg limiting devices, when the stretcher vehicle is continuously pushed into the ambulance, the retractable supporting legs are automatically recovered when touching the tail part of the ambulance, the fixed supporting legs are supported in the ambulance body and move along the axial direction of the ambulance until the whole bed body frame completely enters the ambulance, and the rapid getting-in of the stretcher vehicle (the ambulance) for the ambulance is completed. When needing to move the stretcher vehicle for ambulance out of the ambulance, at first remove the bed body frame, the bed body frame is at the axial slow movement of fixed support leg's effect down along the ambulance, when bed body frame 1's collapsible supporting leg removes outside the ambulance, rely on the action of gravity of collapsible supporting leg, directly open, stir shrink supporting leg stop device simultaneously, it reaches spacingly to fix collapsible supporting leg, collapsible supporting leg and fixed support leg simultaneous action this moment, when continuing to remove the bed body frame, be completely by collapsible supporting leg effect, shift out the bed body frame wholly smoothly from the ambulance. The four-wheel type ambulance with the brake device can transport patients and get on and off the ambulance along with the patients, the four wheels are universal wheels with the brake devices, the parking capacity on a ramp is enhanced compared with the existing products, the structure of the four-wheel type ambulance is simplified as much as possible compared with the existing products, the limit locking structure and the control mechanism of the limit locking are very simple to use, no wearing parts are used in the limit locking mechanism, and the manufacturing cost and the later maintenance cost are greatly reduced.
Drawings
Fig. 1 is a schematic view showing the overall construction of a stretcher for an ambulance according to the present invention;
fig. 2 is a front view schematically illustrating a stretcher for an ambulance according to the present invention;
fig. 3 is a schematic top view of a stretcher for an ambulance according to the present invention;
FIG. 4 is a schematic structural view of a retractable support leg stop used in the present invention;
fig. 5 is a schematic view of the ambulance stretcher according to the present invention after being folded;
wherein:
1-a stretcher bed body frame; 11-a reinforcing rail; 12-a rotor connecting rod; 13-head-up frame; 131-hydraulic stay bar; 2-front leg; 21-front leg link; 3-rear leg; 31-rear leg link; 4-universal wheels; 5-a directional wheel; 6-orientation wheel link; 7-a first sliding track bar; 8-a second sliding track bar; 81-limiting transmission rod; 82-a limit pin; 83-control handle.
Detailed Description
Referring to fig. 1, the utility model provides a stretcher vehicle for an ambulance, which comprises a bed body frame 1, a retractable supporting leg, a fixed supporting leg and a retractable supporting leg limiting device; the bed body frame 1 is rectangular as a whole; the fixed supporting legs are arranged at four corners of the bed body frame 1; the retractable supporting legs are connected with the bed body frame 1 along the long edge direction of the bed body frame 1 through rotating part connecting rods 12 and rotate around the axial direction of the rotating part connecting rods; the length of the retractable supporting leg is greater than that of the fixed supporting leg; the retractable supporting leg limiting device is arranged on the bed body frame 1, and when the retractable supporting leg is opened, the retractable supporting leg limiting device is used for limiting and locking the retractable supporting leg. When the stretcher is used, the stretcher for the ambulance is integrally supported on the ground under the action of the retractable supporting legs, when a patient needs to be transferred to the ambulance, the retractable supporting legs move and are stopped at the tail part of the ambulance, the retractable supporting leg limiting devices are shifted at the moment, the retractable supporting legs are not limited by the retractable supporting leg limiting devices, when the stretcher is continuously pushed into the ambulance, the retractable supporting legs are automatically recovered when touching the tail part of the ambulance, the fixed supporting legs are supported in the ambulance body and move along the axial direction of the ambulance until the whole bed body frame 1 completely enters the ambulance, and the rapid entry (ambulance) of the stretcher for the ambulance is completed. When needs move the ambulance with stretcher for ambulance out of the ambulance, at first remove bed body frame 1, bed body frame 1 is along the axial slow movement of ambulance under fixed supporting leg's effect, when bed body frame 1's collapsible supporting leg removes outside the ambulance, rely on the action of gravity of collapsible supporting leg, directly open, stir shrink supporting leg stop device simultaneously, it is fixed and spacing to collapsible supporting leg, but collapsible supporting leg and fixed supporting leg simultaneous action this moment, when continuing to remove bed body frame 1, be completely by collapsible supporting leg effect, shift out bed body frame 1 wholly smoothly from the ambulance.
Referring to fig. 1 and 2, the retractable support leg adopted by the utility model at least comprises a front leg 2 and a front leg connecting rod 21; one end of the front leg connecting rod 21 is connected with the bed body frame through a rotating part connecting rod 12, and the other end is connected with the middle part of the front leg 2; the front leg link 21 rotates around the axial direction of the rotating member connecting rod 12; the bottom of the front leg 2 is provided with a moving wheel; when the retractable supporting leg is opened, the top of the front leg 2 is limited and locked by the retractable supporting leg limiting device. Meanwhile, in order to ensure the stability of the bed frame 1, the retractable supporting leg provided by the utility model also comprises a rear leg 3 and a rear leg connecting rod 31; one end of the rear leg connecting rod 31 is connected with the bed body frame through a rotating part connecting rod 12, and the other end is connected with the middle part of the rear leg 3; the rear leg link 31 rotates around the axial direction of the rotating member connecting rod 12; the bottom of the rear leg 3 is provided with a moving wheel; when the retractable supporting leg is opened, the retractable supporting leg limiting device limits and locks the top of the rear leg 3; the rear legs 3 and the front legs 2 are sequentially arranged along the long edge direction of the bed body frame. The moving wheels at the bottom of the front legs 2 and the moving wheels at the bottom of the rear legs 3 are universal wheels 4, and the universal wheels 4 are universal wheels with brakes, so that the parking capacity on a certain slope can be ensured.
Referring to fig. 1, 3 and 4, the telescopic support leg limiting device adopted by the utility model comprises a telescopic support leg limiting device which comprises a first sliding rail rod 7 and a second sliding rail rod 8 which are arranged along the long side direction of a bed body frame 1; the first sliding track rod 7 and the second sliding track rod 8 are oppositely arranged; the retractable support leg moves in the axial direction of the first sliding rail rod 7 and the axial direction of the second sliding rail rod 8; the second sliding track rod 8 is provided with a limit transmission rod 81, a limit pin 82 and a control handle 83; the control handle 83 and the limit pin 82 are both arranged on the second sliding track rod 8 along the long edge direction of the bed body frame 1 through a pin shaft; a limit transmission rod 81 is arranged between the control handle 83 and the limit pin 82; when the retractable supporting leg is opened, the control handle 83 drives the limiting pin 82 to rotate around the axial direction of the pin shaft fixed by the limiting pin 82 and the second sliding track rod 8 through the limiting transmission rod 81 and abuts against the retractable supporting leg; when the retractable supporting leg is retracted, the control handle 83 drives the limit pin 82 to rotate around the axial direction of the pin shaft fixed by the limit pin 82 and the second sliding track rod 8 through the limit transmission rod 81 and is far away from the retractable supporting leg. The specific operation of contracting the supporting leg limiting device is that the handle is put down for limiting and locking, and the handle is lifted for canceling the limiting.
Referring to fig. 1 and 2, the fixed support leg adopted by the utility model comprises directional wheel connecting rods 6 arranged at four corners of the bed frame, and directional wheels 5 are arranged at the bottoms of the directional wheel connecting rods 6.
In order to provide a better rescue posture for patients, referring to fig. 1, 2 and 5, the ambulance stretcher further comprises a liftable head frame disposed on the bed frame 1, the liftable head frame comprising a head-up frame 13 and hydraulic stays 131; the head raising frame 13 is arranged on the bed body frame 1 through a hydraulic support rod 131 and pin shafts at two ends. Referring to fig. 3, the bed frame 1 further includes a reinforcing cross bar 11 disposed inside the bed frame 1 along a short side direction of the bed frame 1. The head frame of the stretcher bed body part can be lifted up, and the angle is controlled by the hydraulic stay bar.