CN109431693B

CN109431693B - Improved stretcher vehicle

Info

Publication number: CN109431693B
Application number: CN201811585956.7A
Authority: CN
Inventors: 李全兴
Original assignee: Jiangyin Everise Medical Equipment Co ltd
Current assignee: Jiangyin Everise Medical Equipment Co ltd
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2023-10-20
Anticipated expiration: 2038-12-24
Also published as: CN109431693A

Abstract

The invention relates to an improved stretcher, which comprises a stretcher main body, wherein the stretcher main body comprises an upper frame, front supporting legs and rear supporting legs, casters are arranged at the bottom ends of the front supporting legs and the rear supporting legs, a first connecting rod is arranged between the lower sections of the two front supporting legs, a second connecting rod is arranged between the lower sections of the two rear supporting legs, two left-right symmetrically arranged first inclined rods are connected between the first connecting rod and the middle section of the upper frame, two left-right symmetrically arranged second inclined rods are connected between the second connecting rod and the rear section of the upper frame, a linkage mechanism is arranged on the upper frame, the front supporting legs and the rear supporting legs of the stretcher can be locked at the same time, serious secondary injury to the stretcher caused by accidental kicking caused by the false collision and the false error of staff in an emergency situation is avoided, the safety coefficient of the stretcher is improved, and the linkage mechanism can be used for unlocking in a left-right symmetrically arranged mode, so that the service life of the stretcher is prolonged.

Description

Improved stretcher vehicle

Technical Field

The invention relates to an improved stretcher vehicle, and belongs to the technical field of medical appliances.

Background

The stretcher is a tool for conveying patients most commonly used in hospitals, the existing stretcher has the defect that the gravity center is unstable and is very easy to fall down in use, accidents that patients fall off the stretcher once occur in the conveying process, and some patients are even broken, so that the situation is common in all hospitals. Therefore, the on-site post-injury conveying medical rescue apparatus has higher requirements, namely, the operation is quick and convenient, the secondary injury to wounded personnel is small, and the high-efficiency and high-quality post-injury conveying is achieved.

Disclosure of Invention

The invention aims to overcome the defects and provide the improved stretcher vehicle which is rapid and convenient to operate, high in safety coefficient and not easy to topple.

The purpose of the invention is realized in the following way: the utility model provides an improved generation stretcher, includes the stretcher main part, the stretcher main part includes upper portion frame, two bilateral symmetry arranges preceding supporting leg and two bilateral symmetry's back supporting leg, be provided with a plurality of vertical connecting axles along its length direction in the upper portion frame, the bottom of preceding supporting leg and back supporting leg all is provided with the truckle, preceding supporting leg is connected in the below of upper portion frame anterior segment, the back supporting leg is connected in the below of upper portion frame back end, is provided with the head rod between the lower segment of two preceding supporting legs, is provided with the second connecting rod between the lower segment of two back supporting legs, be connected with two bilateral symmetry's first diagonal bars between the middle section of head rod and upper portion frame, be connected with two bilateral symmetry's second diagonal bars between the back segment of second connecting rod and upper portion frame;

the upper frame is provided with a linkage mechanism, the linkage mechanism comprises two transversely arranged positioning plates, the two positioning plates are arranged front and back and are positioned on the same transverse straight line, two ends of each positioning plate are fixedly connected with two adjacent longitudinal connecting shafts respectively, the rear section of the top surface of each positioning plate is provided with a fixed seat, a pull rod is connected between the two fixed seats, the rear end of each pull rod penetrates through the fixed seat on the rear side, the rear section of each pull rod is inwards bent, the front end of each pull rod penetrates through the fixed seat on the front side, the front section of each pull rod is sleeved with a spring, the front section of the bottom surface of each positioning plate is provided with a downward extending supporting piece, the rear section of the bottom surface of each positioning plate is provided with a downward extending fixing plate, each supporting piece comprises a transverse plate and two vertical plates which are symmetrically arranged left and right, the top surface of each transverse plate is fixedly connected with each positioning plate, and the lower part of each positioning plate is connected with a triggering component;

the trigger assembly comprises a swing rod, a connecting piece, a trigger rod which is inclined downwards from back to front and a connecting rod which extends backwards, a first pin shaft is connected between the lower sections of two vertical plates of the supporting piece, the front section of the connecting piece is sleeved on the first pin shaft, the front end of the connecting piece is fixedly connected with the top end of the trigger rod through a bolt, the bottom end of the trigger rod is provided with a small roller, the middle section of the connecting piece is connected with the front end of the connecting rod through a second pin shaft, the inner side surface of the rear section of the connecting piece is provided with a shifting column which extends inwards, the inner end surface of the shifting column is provided with a circular baffle plate, the center point of the baffle plate is located on the axis of the shifting column, the rear section of the connecting piece is also provided with a clamping groove, the clamping groove is located in the clamping groove, the clamping column is provided with a bayonet, the bayonet is connected with the clamping groove in a matched mode, the axis of the limiting column is located obliquely below the axis of the second pin shaft, the axis of the connecting rod is located on the front end of the connecting rod, the connecting rod is located on the upper side of the fixing seat, and the connecting rod is located on the upper end of the swing rod through the fixing seat, and the upper end of the connecting rod is located on the front end of the swing rod.

Preferably, the front section of the bottom of the upper frame is provided with two main rollers which are symmetrically arranged left and right, the front of the main rollers is provided with auxiliary rollers, and the auxiliary rollers are positioned obliquely above the main rollers.

Compared with the prior art, the invention has the beneficial effects that:

the improved stretcher has reasonable structural design and quick and convenient operation, the front supporting leg and the rear supporting leg of the stretcher can be simultaneously locked by additionally arranging the linkage mechanism, the phenomenon that the stretcher accidentally falls down due to the false collision and the false kicking of staff in an emergency is avoided, serious secondary injury is caused to wounded staff, the safety coefficient of the stretcher is improved, and the linkage mechanism can be used for unlocking in two unlocking modes, so that the service life of the stretcher is prolonged.

Drawings

Fig. 1 is a schematic structural view of an improved stretcher of the present invention.

Fig. 2 is a schematic structural view of the linkage mechanism in fig. 1.

Fig. 3 is a schematic structural view of another view of the linkage mechanism.

Fig. 4 is a partial enlarged view of a portion a in fig. 3.

Wherein:

stretcher body 100, upper frame 101, front support leg 102, rear support leg 103, caster 104, first diagonal bar 105, second diagonal bar 106, main roller 107, auxiliary roller 108

The trigger assembly comprises a positioning plate 201, a fixing seat 202, a pull rod 203, a spring 204, a trigger assembly 205, a swing rod 205.1, a connecting sheet 205.2, a trigger rod 205.3, a connecting rod 205.4, a first pin 205.5, a small roller 205.6, a second pin 205.7, a shifting column 205.8, a baffle 205.9, a clamping groove 205.10, a limit column 205.11, a third pin 205.12, a fourth pin 205.13, a support 206 and a fixing plate 207.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 4, the improved stretcher according to the present invention comprises a stretcher body 100, wherein the stretcher body 100 comprises an upper frame 101, two front supporting legs 102 and two rear supporting legs 103 which are arranged symmetrically left and right, a plurality of longitudinal connecting shafts 109 are arranged in the upper frame 101 along the length direction, two main rollers 107 which are arranged symmetrically left and right are arranged at the front section of the bottom of the upper frame 101, auxiliary rollers 108 are arranged in front of the main rollers 107, the auxiliary rollers 108 are positioned obliquely above the main rollers 107, the main rollers 107 and the auxiliary rollers 108 function to facilitate the stretcher to be loaded on an ambulance, the stretcher can be smoothly pushed into and loaded onto a stand of an ambulance, the bottom ends of the front supporting leg 102 and the rear supporting leg 103 are respectively provided with a trundle 104, the front supporting leg 102 is connected below the front section of the upper frame 101, the rear supporting leg 103 is connected below the rear section of the upper frame 101, a first connecting rod is arranged between the lower sections of the two front supporting legs 102, a second connecting rod is arranged between the lower sections of the two rear supporting legs 103, two first diagonal rods 105 which are symmetrically arranged left and right are connected between the first connecting rod and the middle section of the upper frame 101, and two second diagonal rods 106 which are symmetrically arranged left and right are connected between the second connecting rod and the rear section of the upper frame 101;

the upper frame 101 is provided with a linkage mechanism, the linkage mechanism comprises two positioning plates 201 which are transversely arranged, the two positioning plates 201 are arranged front and back and are positioned on the same transverse straight line, two ends of each positioning plate 201 are respectively and fixedly connected with two adjacent longitudinal connecting shafts 109, a fixed seat 202 is arranged at the rear section of the top surface of each positioning plate 201, a pull rod 203 is connected between the two fixed seats 202, the rear end of each pull rod 203 passes through the fixed seat 202 at the rear side, the rear section of each pull rod 203 is inwards bent, the front end of each pull rod 203 passes through the fixed seat 202 at the front side, the front section of each pull rod 203 is sleeved with a spring 204, a supporting piece 206 which extends downwards is arranged at the front section of the bottom surface of each positioning plate 201, each supporting piece 206 comprises a transverse plate and two vertical plates which are symmetrically arranged left and right, the top surface of each transverse plate is fixedly connected with each positioning plate 201, and the two vertical plates are respectively and fixedly connected with the left side and right side of each transverse plate;

a trigger assembly 205 is arranged below the positioning plate 201, the trigger assembly 205 comprises a swing rod 205.1, a connecting sheet 205.2, a trigger rod 205.3 which is inclined downwards from back to front and a connecting rod 205.4 which extends backwards, a first pin shaft 205.5 is connected between the lower sections of two vertical plates of the supporting piece 206, the front section of the connecting sheet 205.2 is sleeved on the first pin shaft 205.5, the front end of the connecting sheet 205.2 is fixedly connected with the top end of the trigger rod 205.3 through a bolt, the bottom end of the trigger rod 205.3 is provided with a small roller 205.6, the middle section of the connecting sheet 205.2 is connected with the front end of the connecting rod 205.4 through a second pin shaft 205.7, the inner side surface of the rear section of the connecting sheet 205.2 is provided with a shifting post 205.8 which extends inwards, the inner end surface of the shifting post 205.8 is provided with a round baffle 205.9, the center point of the baffle 205.9 is positioned on the axis of the shifting post 205.8, the rear section 205.2 is also provided with a clamping groove, the clamping groove 205.10 is located at the obliquely lower part of the rear side of the shifting column 205.8, a protruding limiting column 205.11 is arranged on the inner side surface of the front section of the connecting rod 205.4, the limiting column 205.11 is located in the clamping groove 205.10, a bayonet is arranged on the limiting column 205.11 and is connected with the clamping groove 205.10 in a matched mode, the axis of the limiting column 205.11 is located at the obliquely lower part of the axis of the second pin 205.7, the axis of the shifting column 205.8 is located at the obliquely upper part of the axis of the second pin 205.7, the rear end of the connecting rod 205.4 is connected with a reset spring on the upper frame 101, the swinging rod 205.1 is located at the inner side of the positioning plate 201 and is located in front of the fixing seat 202, the top end of the swinging rod 205.1 is connected with the pull rod 203 through a third pin 205.12, the middle section of the swinging rod 205.1 is connected with the fixing plate 207 through a fourth pin 205.13, and the lower section of the swinging rod 205.1 is contacted with the shifting column 205.8.

Working principle: when the small roller of the trigger rod touches the frame of the ambulance, the trigger rod rotates backwards to fold, and drives the connecting sheet to rotate around the second pin shaft, so that the limit column on the connecting rod is separated from the clamping groove on the connecting sheet, thereby playing a lock unloading role, and at the moment, the front support leg and the rear support leg can rotate backwards to fold when sequentially touching the frame of the ambulance; if the trigger rod fails, the pull rod is pulled backwards to drive the swing rod to swing, and the pushing force on the pulling column in an inclined direction is applied to the limit column on the connecting rod, so that the limit column on the connecting rod is separated from the clamping groove on the connecting sheet, and the unlocking function can be achieved.

The foregoing is merely a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the invention.

Claims

1. An improved stretcher vehicle, comprising a stretcher vehicle body (100), characterized in that: the stretcher body (100) comprises an upper frame (101), two left and right symmetrically arranged front supporting legs (102) and two left and right symmetrically arranged rear supporting legs (103), a plurality of longitudinal connecting shafts (109) are arranged in the upper frame (101) along the length direction of the upper frame, casters (104) are arranged at the bottoms of the front supporting legs (102) and the rear supporting legs (103), the front supporting legs (102) are connected below the front section of the upper frame (101), the rear supporting legs (103) are connected below the rear section of the upper frame (101), a first connecting rod is arranged between the lower sections of the two front supporting legs (102), a second connecting rod is arranged between the lower sections of the two rear supporting legs (103), two left and right symmetrically arranged first diagonal rods (105) are connected between the first connecting rod and the middle section of the upper frame (101), and two left and right symmetrically arranged second diagonal rods (106) are connected between the second connecting rod and the rear section of the upper frame (101);

the upper frame (101) is provided with a linkage mechanism, the linkage mechanism comprises two transversely arranged positioning plates (201), the two positioning plates (201) are arranged front and back and are positioned on the same transverse straight line, two ends of each positioning plate (201) are fixedly connected with two adjacent longitudinal connecting shafts (109) respectively, the rear section of the top surface of each positioning plate (201) is provided with a fixing seat (202), a pull rod (203) is connected between the two fixing seats (202), the rear end of each pull rod (203) penetrates through the corresponding fixing seat (202) on the rear side, the rear section of each pull rod (203) is bent inwards, the front end of each pull rod (203) penetrates through the corresponding fixing seat (202) on the front side, a spring (204) is sleeved on the front section of each pull rod (203), the front section of the bottom surface of each positioning plate (201) is provided with a supporting piece (206) extending downwards, the rear section of the bottom surface of each positioning plate (201) is provided with a fixing plate (207) extending downwards, each supporting piece (206) comprises a transverse plate and two vertical plates symmetrically arranged left and right side vertical plates, the top surfaces of the two vertical plates (205) are fixedly connected with the corresponding trigger assemblies (201) on the two sides;

the trigger assembly (205) comprises a swing rod (205.1), a connecting piece (205.2), a trigger rod (205.3) which is inclined downwards from back to front and a connecting rod (205.4) which extends backwards, a first pin shaft (205.5) is connected between the lower sections of two vertical plates of the supporting piece (206), the front section of the connecting piece (205.2) is sleeved on the first pin shaft (205.5), the front end of the connecting piece (205.2) is fixedly connected with the top end of the trigger rod (205.3) through a bolt, the bottom end of the trigger rod (205.3) is provided with a small roller (205.6), the middle section of the connecting piece (205.2) is connected with the front end of the connecting rod (205.4) through a second pin shaft (205.7), the inner side surface of the rear section of the connecting piece (205.2) is provided with a circular shifting post (205.8), the inner end surface of the shifting post (205.8) is provided with a circular blocking piece (205.9), the center point of the blocking piece (205.9) is positioned on the upper side of the clamping post (205.8) and is positioned on the inner side of the connecting post (35.10.4), the blocking post (205.2) is also provided with a notch (35.10) which is positioned on the inner side of the connecting post (35.10, the axis of spacing post (205.11) is located the oblique below of the axis of second round pin axle (205.7), the axis of dialling post (205.8) is located the oblique top of the axis of second round pin axle (205.7), the rear end of connecting rod (205.4) is connected with the reset spring on upper frame (101), pendulum rod (205.1) are located the inboard of locating plate (201) and are located the place ahead of fixing base (202), the top of pendulum rod (205.1) is connected with pull rod (203) through third round pin axle (205.12), the middle section of pendulum rod (205.1) is connected with fixed plate (207) through fourth round pin axle (205.13), the hypomere of pendulum rod (205.1) is contacted with dialling post (205.8).

2. The improved stretcher vehicle according to claim 1, characterized in that: the front section of the bottom of the upper frame (101) is provided with two main rollers (107) which are symmetrically arranged left and right, the front of the main rollers (107) is provided with auxiliary rollers (108), and the auxiliary rollers (108) are positioned obliquely above the main rollers (107).