CN209751409U - Self-locking mechanism of stretcher vehicle - Google Patents
Self-locking mechanism of stretcher vehicle Download PDFInfo
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- CN209751409U CN209751409U CN201822176562.8U CN201822176562U CN209751409U CN 209751409 U CN209751409 U CN 209751409U CN 201822176562 U CN201822176562 U CN 201822176562U CN 209751409 U CN209751409 U CN 209751409U
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- stretcher
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- locking mechanism
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Abstract
The utility model relates to a self-locking mechanism of a stretcher vehicle, which comprises a handle, a pull rod, a fixed seat, a connecting sheet and a locking sheet, the fixed seat is positioned in front of the handle, the locking plate and the connecting plate are arranged at the inner side of the fixed seat in sequence, the lower section of the fixed seat is sequentially connected with the front section of the locking plate and the lower section of the connecting sheet through a second screw and a shaft sleeve, the pull rod is arranged between the handle and the connecting sheet, one end of the pull rod is connected with the front end of the handle, the other end of the pull rod is fixedly connected with the upper section of the connecting sheet through a first screw, the front section of the locking plate is provided with a chute, the front section of the chute is provided with a bayonet, the bayonet is communicated with the chute, the second screw is positioned in the bayonet, the front end of the locking plate is provided with a baffle plate bent inwards, the lower section of the connecting piece is provided with a convex block, and the front side surface of the convex block is contacted with the rear side surface of the blocking piece. The utility model discloses the operation is convenient fast, factor of safety is high, avoided the secondary injury to the sick and wounded personnel.
Description
Technical Field
The utility model relates to a self-locking mechanism for assembling stretcher vehicle 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 structural design is reasonable, factor of safety is high, the operation is convenient fast, avoided being used for assembling the self-locking mechanism of stretcher to sick and wounded's secondary injury.
The purpose of the utility model is realized like this: a self-locking mechanism of a stretcher comprises a handle, a pull rod, a fixed seat, a connecting sheet and a locking sheet, wherein the fixed seat is positioned in front of the handle, the locking plate and the connecting sheet are arranged at the inner side of the fixed seat in sequence, the lower section of the fixed seat is connected with the front section of the locking plate and the lower section of the connecting sheet in sequence through a second screw and a shaft sleeve, the pull rod is arranged between the handle and the connecting sheet, one end of the pull rod is connected with the front end of the handle, the other end of the pull rod is fixedly connected with the upper section of the connecting sheet through a first screw, the front section of the locking plate is provided with a chute along the length direction thereof, the front section of the chute is provided with a bayonet extending upwards, the bayonet is communicated with the sliding groove, the second screw is positioned in the bayonet, the front end of the locking plate is provided with a blocking piece bent inwards, the lower section of the connecting piece is provided with a convex block extending forwards, and the front side surface of the convex block is in contact with the rear side surface of the blocking piece.
Preferably, the fixing seat comprises a horizontal section and a vertical section, the horizontal section is fixedly connected with the bottom of the upper frame, and the top end of the vertical section is fixedly connected with the inner end of the horizontal section.
Preferably, the lower section of the vertical section is fixedly connected with the second screw in a welding manner.
a stretcher vehicle comprises a self-locking mechanism of the stretcher vehicle and a stretcher vehicle main body, wherein the stretcher vehicle main body comprises an upper frame, two front supporting legs and two rear supporting legs which are arranged in a bilateral symmetry manner, a plurality of longitudinal connecting shafts are arranged in the upper frame along the length direction of the upper frame, the bottom of the upper frame is provided with a front group of idler wheels and a rear group of idler wheels, the self-locking mechanism is arranged below the rear section of the upper frame and is positioned behind the rear supporting legs, the bottom ends of the front supporting legs and the rear supporting legs are respectively provided with a trundle wheel, the included angle between the front supporting legs and the rear section of the upper frame is an obtuse angle, 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 manner are connected between the first connecting rods and the middle section of, 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.
Preferably, the front section of the handle is rotatably connected with the longitudinal connecting shaft of the upper frame.
Compared with the prior art, the beneficial effects of the utility model are that:
The utility model relates to a stretcher's shrink of supporting leg is folding behind self-locking mechanism control, and the operation is convenient fast, factor of safety is high, avoids the stretcher to empty because of the focus is unstable to the secondary injury to the sick and wounded personnel has effectively been avoided.
Drawings
Fig. 1 is a schematic structural view of the stretcher with the self-locking mechanism of the present invention.
Fig. 2 is a partial enlarged view of the stretcher with the self-locking mechanism of the present invention.
Fig. 3 is a schematic structural view of the self-locking mechanism in fig. 1.
Fig. 4 is a schematic structural view of the locking plate in fig. 3.
Wherein:
Stretcher main body 200, upper frame 201, front support leg 202, rear support leg 203, caster 204, first diagonal bar 205, second diagonal bar 206, longitudinal connecting shaft 207, return spring 208, roller 209
The handle 301, the pull rod 302, the fixing seat 303, the connecting piece 304, the bump 304.1, the locking piece 305, the sliding groove 305.1, the bayonet 305.2, the blocking piece 305.3, the first screw 306, the second screw 307 and the shaft sleeve 308.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the 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 200, wherein the stretcher main body 200 comprises an upper frame 201, two front support legs 202 arranged in bilateral symmetry and two rear support legs 203 arranged in bilateral symmetry, a plurality of longitudinal connecting shafts 207 are arranged in the upper frame 201 along the length direction of the upper frame, a front set of rollers 209 and a rear set of rollers 209 are arranged at the bottom of the upper frame 201, so that the stretcher can be smoothly and rapidly pushed into and loaded onto a stand of an ambulance when the stretcher is loaded on the ambulance, casters 204 are arranged at the bottom ends of the front support legs 202 and the rear support legs 203, the front support legs 202 are connected below the front section of the upper frame 201, an included angle between the front support legs 202 and the rear section of the upper frame 201 is set to be an obtuse angle, the rear support legs are connected below the rear section 203 of the upper frame 201, a first connecting rod is arranged between the lower sections of the two front supporting legs 202, a second connecting rod is arranged between the lower sections of the two rear supporting legs 203, two first inclined rods 205 which are symmetrically arranged left and right are connected between the first connecting rod and the middle section of the upper frame 201, and two second inclined rods 206 which are symmetrically arranged left and right are connected between the second connecting rod and the rear section of the upper frame 201;
A self-locking mechanism is arranged below the rear section of the upper frame 201 and is positioned behind the rear supporting leg 203, the self-locking mechanism comprises a handle 301, a pull rod 302, a fixed seat 303, a connecting piece 304 and a locking piece 305, the front section of the handle 301 is rotationally connected with a longitudinal connecting shaft 207 of the upper frame 201, the fixed seat 303 is fixedly arranged at the bottom of the upper frame 201, the fixed seat 303 is positioned in front of the handle 301, the locking piece 305 and the connecting piece 304 are sequentially arranged at the inner side of the fixed seat 303, the lower section of the fixed seat 303 is sequentially connected with the front section of the locking piece 305 and the lower section of the connecting piece 304 through a second screw 307 and a shaft sleeve 308, the pull rod 302 is arranged between the handle 301 and the connecting piece 304, one end of the pull rod 302 is connected with the front end of the handle 301, and the other end of the pull rod 302 is, a sliding groove 305.1 is formed in the front section of the locking plate 305 along the length direction of the front section of the locking plate 305, a bayonet 305.2 extending upwards is arranged on the front section of the sliding groove 305.1, the bayonet 305.2 is communicated with the sliding groove 305.1, the second screw 307 is positioned in the bayonet 305.2, a baffle 305.3 bending inwards is arranged at the front end of the locking plate 305, a convex block 304.1 extending forwards is arranged on the lower section of the connecting plate 304, the front side surface of the convex block 304.1 is in contact with the rear side surface of the baffle 305.3, and the rear section of the locking plate 305 is connected with a return spring 208 on the longitudinal connecting shaft 207;
The fixing seat 303 includes a horizontal section and a vertical section, the horizontal section is fixedly connected with the bottom of the upper frame 201, the top end of the vertical section is fixedly connected with the inner end of the horizontal section, and the lower section of the vertical section is fixedly connected with the second screw 307 in a welding manner.
The working principle is as follows: the stretcher vehicle is manually pushed to move forwards, when the stretcher vehicle touches a stand of the ambulance and the truckles of the front supporting legs lift off the ground, the front supporting legs rotate backwards and are folded, meanwhile, the front section of the handle is manually and upwardly pinched to drive the pull rod to move backwards, so that the connecting sheet rotates anticlockwise around the second screw, the lug of the connecting sheet pushes the blocking piece to move upwards, the second screw is positioned in the sliding groove of the locking sheet, the rear supporting legs can timely rotate backwards and are folded when touching the stand of the ambulance, and the operation is convenient and rapid; when the stretcher is pulled down from the ambulance, the front and rear support legs may quickly return to their original positions due to the force of the return springs.
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 self-locking mechanism of a stretcher vehicle is characterized in that: comprises a handle (301), a pull rod (302), a fixed seat (303), a connecting sheet (304) and a locking plate (305), wherein the fixed seat (303) is positioned in front of the handle (301), the locking plate (305) and the connecting sheet (304) are sequentially arranged on the inner side of the fixed seat (303), the lower section of the fixed seat (303) is sequentially connected with the front section of the locking plate (305) and the lower section of the connecting sheet (304) through a second screw (307) and a shaft sleeve (308), the pull rod (302) is arranged between the handle (301) and the connecting sheet (304), one end of the pull rod (302) is connected with the front end of the handle (301), the other end of the pull rod (302) is fixedly connected with the upper section of the connecting sheet (304) through a first screw (306), the front section of the locking plate (305) is provided with a sliding chute (305.1) along the length direction thereof, the front section of the sliding chute (305.1) is provided with a bayonet, the bayonet (305.2) is communicated with the sliding groove (305.1), the second screw (307) is located in the bayonet (305.2), a baffle (305.3) bent towards the inner side is arranged at the front end of the locking plate (305), a convex block (304.1) extending forwards is arranged at the lower section of the connecting plate (304), and the front side face of the convex block (304.1) is contacted with the rear side face of the baffle (305.3).
2. the self-locking mechanism of a stretcher according to claim 1, characterized in that: the fixing seat (303) comprises a horizontal section and a vertical section, the horizontal section is fixedly connected with the bottom of the upper frame (201), and the top end of the vertical section is fixedly connected with the inner end of the horizontal section.
3. The self-locking mechanism of a stretcher according to claim 2, characterized in that: the lower section of the vertical section is fixedly connected with a second screw (307) in a welding mode.
4. A stretcher vehicle, characterized in that: the self-locking mechanism of the stretcher comprises the self-locking mechanism of the stretcher according to claim 1 and a stretcher main body (200), wherein the stretcher main body (200) comprises an upper frame (201), two front supporting legs (202) which are arranged in a bilateral symmetry manner and two rear supporting legs (203) which are arranged in a bilateral symmetry manner, a plurality of longitudinal connecting shafts (207) are arranged in the upper frame (201) along the length direction of the upper frame, a front group of rollers (101) and a rear group of rollers (101) are arranged at the bottom of the upper frame (201), the self-locking mechanism is arranged below the rear section of the upper frame (201) and is positioned behind the rear supporting legs (203), the bottom ends of the front supporting legs (202) and the rear supporting legs (203) are respectively provided with a caster (204), the included angle between the front supporting legs (202) and the rear section of the upper frame (201) is set to be an obtuse angle, and a first connecting rod is arranged between the, a second connecting rod is arranged between the lower sections of the two rear supporting legs (203), two first inclined rods (205) which are symmetrically arranged left and right are connected between the first connecting rod and the middle section of the upper frame (201), and two second inclined rods (206) which are symmetrically arranged left and right are connected between the second connecting rod and the rear section of the upper frame (201);
The self-locking mechanism of the stretcher is positioned below the upper frame (201) and behind the rear supporting legs (203).
5. a stretcher as claimed in claim 4, wherein: the front section of the handle (301) is rotatably connected with a longitudinal connecting shaft (207) of the upper frame (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822176562.8U CN209751409U (en) | 2018-12-24 | 2018-12-24 | Self-locking mechanism of stretcher vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822176562.8U CN209751409U (en) | 2018-12-24 | 2018-12-24 | Self-locking mechanism of stretcher vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209751409U true CN209751409U (en) | 2019-12-10 |
Family
ID=68747199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822176562.8U Active CN209751409U (en) | 2018-12-24 | 2018-12-24 | Self-locking mechanism of stretcher vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209751409U (en) |
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2018
- 2018-12-24 CN CN201822176562.8U patent/CN209751409U/en active Active
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