CN209751411U - Linkage mechanism of stretcher vehicle - Google Patents
Linkage mechanism of stretcher vehicle Download PDFInfo
- Publication number
- CN209751411U CN209751411U CN201822176684.7U CN201822176684U CN209751411U CN 209751411 U CN209751411 U CN 209751411U CN 201822176684 U CN201822176684 U CN 201822176684U CN 209751411 U CN209751411 U CN 209751411U
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- stretcher
- rod
- pull rod
- section
- supporting legs
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Abstract
The utility model relates to a link gear of stretcher, link gear includes two transverse arrangement's locating plate, arranges and is located same horizontal straight line around two locating plates, the back end of the top surface of locating plate is provided with the fixing base, is connected with the pull rod between two fixing bases, the rear end of pull rod passes the fixing base of rear side, and the back end of pull rod inwards buckles, the front end of pull rod passes the fixing base of front side, and the anterior segment cover of pull rod is equipped with the spring, the below of locating plate is connected with the trigger subassembly. The utility model relates to a link gear of stretcher can pin the preceding supporting leg and the back supporting leg of stretcher simultaneously, avoids staff's mistake to hit under emergency to miss and play and lead to the stretcher accident to empty, causes serious secondary injury for the sick and wounded personnel, improves the factor of safety of stretcher, and two kinds of unblock modes of this link gear accessible unload the lock to the life of extension stretcher.
Description
Technical Field
the utility model relates to a link gear for assembling stretcher belongs to medical instrument technical field.
Background
The stretcher is the most commonly used tool for transporting patients in hospitals, the existing stretcher has a prominent defect that the center of gravity is unstable and the existing stretcher is easy to topple over, accidents that the patients fall off the stretcher from the stretcher occur for a plurality of times in the transporting process, and some patients are even broken into bone fracture, which is common in all hospitals. Therefore, the device has higher requirements on the transportation of medical rescue equipment after the field injury, namely, the device is quick and convenient to operate, has small secondary injury to the wounded and the sick, and achieves high-efficiency and high-quality transportation after the injury.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned not enough, provide a link gear for assembling stretcher that operation is convenient fast, factor of safety is high.
The purpose of the utility model is realized like this: the linkage mechanism of the stretcher comprises two transversely-arranged positioning plates, the two positioning plates are arranged in the front and back direction and are located on the same transverse straight line, a fixing seat is arranged at the rear section of the top surface of each positioning plate, a pull rod is connected between the two fixing seats, the rear end of the pull rod penetrates through the fixing seat on the rear side, the rear section of the pull rod is bent inwards, the front end of the pull rod penetrates through the fixing seat on the front side, a spring is sleeved on the front section of the pull rod, and a trigger assembly is connected below the positioning plates.
Preferably, the front section of the bottom surface of the positioning plate is provided with a support part extending downwards, the rear section of the bottom surface of the positioning plate is provided with a fixing plate extending downwards, the support part comprises a transverse plate and two vertical plates which are arranged in bilateral symmetry, the top surface of the transverse plate is fixedly connected with the positioning plate, and the two vertical plates are respectively fixedly connected with the left side and the right side of the transverse plate.
Preferably, the trigger assembly comprises a swing rod, a connecting piece, a trigger rod which inclines 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 support 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, a small roller is arranged at the bottom end of the trigger rod, the middle section of the connecting piece is connected with the front end of the connecting rod through a second pin shaft, an inward extending shifting column is arranged on the inner side surface of the rear section of the connecting piece, a circular blocking piece is arranged on the inner end surface of the shifting column, the central point of the blocking piece is positioned on the axis of the shifting column, a clamping groove is also formed in the rear section of the connecting piece, the clamping groove is positioned obliquely below the rear side of the shifting column, a raised limiting column is arranged on the inner side, the limiting post is provided with a bayonet, the bayonet is connected with the clamping groove in a matched mode, the axis of the limiting post is located below the axis of the second pin shaft in an inclined mode, the axis of the poking post is located above the axis of the second pin shaft in an inclined mode, the swing rod is located on the inner side of the positioning plate and located in front of the fixing seat, the top end of the swing rod is connected with the pull rod through a third pin shaft, the middle section of the swing rod is connected with the fixing plate through a fourth pin shaft, and the lower section of the swing rod is in contact with the pok.
A stretcher comprises a stretcher main body and a linkage mechanism of the stretcher, wherein the stretcher main body comprises an upper frame, two front supporting legs and two rear supporting legs, the front supporting legs are arranged in a bilateral symmetry mode, the rear supporting legs are arranged in a bilateral symmetry mode, a plurality of longitudinal connecting shafts are arranged in the upper frame along the length direction of the upper frame, two main rollers are arranged at the front section of the bottom of the upper frame in a bilateral symmetry mode, auxiliary rollers are arranged in front of the main rollers and are located above the main rollers in an oblique mode, casters are arranged at the bottom ends of the front supporting legs and the rear supporting legs respectively, the front supporting legs are connected below the front section of the upper frame, the rear supporting legs are connected below the rear section of the upper frame, 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, and two first inclined rods which are arranged in a bilateral symmetry mode are connected between the first connecting rod and the middle section of the, two second inclined rods which are symmetrically arranged left and right are connected between the second connecting rod and the rear section of the upper frame, and the linkage mechanism is connected to the bottom of the upper frame.
Preferably, two ends of the positioning plate are respectively and fixedly connected with two adjacent longitudinal connecting shafts.
Compared with the prior art, the beneficial effects of the utility model are that:
The utility model relates to a link gear of stretcher, its structural design is reasonable, the operation is convenient fast, can pin the preceding supporting leg and the back supporting leg of stretcher simultaneously, avoids staff's mistake to hit under emergency to miss and play and lead to the stretcher accident to empty, leads to serious secondary injury for the sick and wounded, improves the factor of safety of stretcher, and two kinds of unblock modes of this link gear accessible unload the lock to the life of extension stretcher.
Drawings
Fig. 1 is a schematic structural view of a stretcher of the present invention.
Fig. 2 is a schematic structural view of the linkage mechanism in fig. 1.
Fig. 3 is a structural diagram of another view angle of the linkage mechanism.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Wherein:
A stretcher main body 100, an upper frame 101, a front support leg 102, a rear support leg 103, a caster 104, a first diagonal bar 105, a second diagonal bar 106, a main roller 107, and an auxiliary roller 108
The positioning plate 201, the fixing seat 202, the pull rod 203, the spring 204, the triggering component 205, the swing rod 205.1, the connecting sheet 205.2, the triggering rod 205.3, the connecting rod 205.4, the first pin shaft 205.5, the small roller 205.6, the second pin shaft 205.7, the shifting column 205.8, the blocking sheet 205.9, the clamping groove 205.10, the limiting column 205.11, the third pin shaft 205.12, the fourth pin shaft 205.13, the supporting member 206 and the fixing plate 207.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention relates to a stretcher, which comprises a stretcher main body 100, wherein the stretcher main body 100 comprises an upper frame 101, two front support legs 102 arranged in bilateral symmetry and two rear support legs 103 arranged in bilateral symmetry, a plurality of longitudinal connecting shafts 109 are arranged in the upper frame 101 along the length direction of the upper frame, two main rollers 107 arranged in bilateral symmetry 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 smoothly push and load the stretcher onto a rack of an ambulance when the stretcher is loaded on the ambulance, casters 104 are arranged at the bottom ends of the front support legs 102 and the rear support legs 103, the front support 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 first inclined 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 inclined 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 bottom of the upper frame 101 is connected with a linkage mechanism, the linkage mechanism comprises two positioning plates 201 which are transversely arranged, the two positioning plates 201 are arranged in 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, a fixing 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 fixing seats 202, the rear end of each pull rod 203 penetrates through the fixing seat 202 at 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 fixing seat 202 at the front side, a spring 204 is sleeved on the front section of each pull rod 203, a support piece 206 which extends downwards is arranged at the front section of the bottom surface of each positioning plate 201, a fixing plate 207 which extends downwards is arranged at the rear section of the bottom surface of each positioning plate 201, each support piece 206 comprises a transverse plate, the two vertical plates are respectively and fixedly connected with the left side and the right side of the 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 piece 205.2, a trigger rod 205.3 which inclines 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, a small roller 205.6 is arranged at the bottom end of the trigger rod 205.3, 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, an inwardly extending column 205.8 is arranged on the inner side surface of the rear section of the connecting piece 205.2, a circular baffle 205.9 is arranged on the inner end surface of the poking column 205.8, the center point of the baffle 205.9 is positioned on the axis of the poking column 205.8, a slot 205.10 is also arranged on the rear section of the connecting piece 205.2, and positioned below the oblique poking column 205, the inner side surface of the front section of the connecting rod 205.4 is provided with a raised limiting column 205.11, 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 manner, the axis of the limiting column 205.11 is located below the axis of the second pin shaft 205.7 in an inclined manner, the axis of the toggle column 205.8 is located above the axis of the second pin shaft 205.7 in an inclined manner, the rear end of the connecting rod 205.4 is connected with a return spring on the upper frame 101, the swing rod 205.1 is located on the inner side of the positioning plate 201 and in front of the fixing seat 202, the top end of the swing rod 205.1 is connected with the pull rod 203 through a third pin shaft 205.12, the middle section of the swing rod 205.1 is connected with the fixing plate 207 through a fourth pin shaft 205.13, and the lower section of the swing rod 205.
The working principle is as follows: the stretcher cart is pushed by hand to move forwards, when the small idler wheel of the trigger rod touches the frame platform of the ambulance, the trigger rod rotates backwards and is folded to drive the connecting sheet to rotate around the second pin shaft, so that the limiting column on the connecting rod is separated from the clamping groove on the connecting sheet, the lock unloading effect is realized, and at the moment, when the front supporting leg and the rear supporting leg sequentially touch the frame platform of the ambulance, the stretcher cart can rotate backwards and be folded; if the trigger lever is out of order, the pull rod can be pulled backwards to drive the swing rod to swing, and oblique upward thrust is applied to the shifting column, so that the limiting column on the connecting rod is separated from the clamping groove on the connecting sheet, and the lock unloading effect can be achieved.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (5)
1. A linkage mechanism of a stretcher vehicle is characterized in that: the linkage mechanism comprises two transversely-arranged positioning plates (201), the two positioning plates (201) are arranged in the front and at the back and are located on the same transverse straight line, a fixing seat (202) is arranged at the rear section of the top surface of the positioning plate (201), a pull rod (203) is connected between the two fixing seats (202), the rear end of the pull rod (203) penetrates through the fixing seat (202) at the rear side, the rear section of the pull rod (203) is bent inwards, the front end of the pull rod (203) penetrates through the fixing seat (202) at the front side, a spring (204) is sleeved on the front section of the pull rod (203), and a trigger component (205) is connected below the positioning plate (201).
2. the linkage mechanism of a stretcher of claim 1, wherein: the anterior segment of the bottom surface of locating plate (201) is provided with downwardly extending's support piece (206), and the rear end of the bottom surface of locating plate (201) is provided with downwardly extending's fixed plate (207), support piece (206) include diaphragm and two bilateral symmetry's riser, the top surface and the locating plate (201) fixed connection of diaphragm, two risers respectively with the left and right sides fixed connection of diaphragm.
3. A stretcher linkage according to claim 2, wherein: the trigger assembly (205) comprises a swing rod (205.1), a connecting piece (205.2), a trigger rod (205.3) which inclines 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, a small roller (205.6) is arranged at the bottom end of the trigger rod (205.3), 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), an inward extending poking column (205.8) is arranged on the inner side surface of the rear section of the connecting piece (205.2), a circular blocking piece (205.9) is arranged on the inner end surface of the poking column (205.8), and the central point of the blocking piece (205.9) is positioned on the axial line of the pok, the rear section of the connecting piece (205.2) is further provided with a clamping groove (205.10), the clamping groove (205.10) is positioned at the oblique lower part of the rear side of the shifting column (205.8), the inner side surface of the front section of the connecting rod (205.4) is provided with a raised limiting column (205.11), the limiting column (205.11) is positioned in the clamping groove (205.10), a bayonet is arranged on the limiting column (205.11) and is in fit connection with the clamping groove (205.10), the axis of the limiting column (205.11) is positioned at the oblique lower part of the axis of the second pin shaft (205.7), the axis of the shifting column (205.8) is positioned at the oblique upper part of the axis of the second pin shaft (205.7), the swing rod (205.1) is positioned at the inner side of the positioning plate (201) and is positioned at the front part of the fixing seat (202), the top end of the swing rod (205.1) is connected with the pull rod (203) through a third pin shaft (205.12), and the middle section of the swing rod (205.1) is connected with the fixing plate (, the lower section of the swing rod (205.1) is in contact with the shifting column (205.8).
4. A stretcher vehicle, characterized in that: the stretcher comprises a stretcher main body (100) and the stretcher linkage mechanism of claim 1, wherein the stretcher main body (100) comprises an upper frame (101), two front supporting legs (102) which are arranged in a bilateral symmetry manner and two rear supporting legs (103) which are arranged in a bilateral symmetry manner, a plurality of longitudinal connecting shafts (109) are arranged in the upper frame (101) along the length direction of the upper frame, two main rollers (107) which are arranged in a bilateral symmetry manner are arranged at the front section of the bottom of the upper frame (101), an auxiliary roller (108) is arranged in front of the main roller (107), the auxiliary roller (108) is positioned obliquely above the main roller (107), casters (104) are arranged at the bottom ends 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), and the rear supporting legs (103) are connected below the rear section of the upper frame (101), be provided with the head rod between the hypomere of two preceding supporting legs (102), be provided with the second connecting rod between the hypomere of two back supporting legs (103), be connected with two bilateral symmetry's first down tube (105) between the middle section of head rod and upper portion frame (101), be connected with two bilateral symmetry's second down tube (106) between the back end of second connecting rod and upper portion frame (101), link gear connects in the bottom of upper portion frame (101).
5. A stretcher as claimed in claim 4, wherein: two ends of the positioning plate (201) are respectively and fixedly connected with the two adjacent longitudinal connecting shafts (109).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822176684.7U CN209751411U (en) | 2018-12-24 | 2018-12-24 | Linkage mechanism of stretcher vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822176684.7U CN209751411U (en) | 2018-12-24 | 2018-12-24 | Linkage mechanism of stretcher vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209751411U true CN209751411U (en) | 2019-12-10 |
Family
ID=68747257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822176684.7U Active CN209751411U (en) | 2018-12-24 | 2018-12-24 | Linkage mechanism of stretcher vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209751411U (en) |
-
2018
- 2018-12-24 CN CN201822176684.7U patent/CN209751411U/en active Active
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