阅读说明：本技术 一种可多向收折的轻型直升机担架 (Light helicopter stretcher capable of being folded in multiple directions ) 是由 郗文 王夫帅 李俊杰 薛萌萌 马武明 贺振 周海波 侯烨琦 于 2019-11-15 设计创作，主要内容包括：本申请公开了一种可多向收折的轻型直升机担架,担架杆组件(6)包括上杆(6-1)、下杆(6-2)、对接接头(6-3))、H接头(6-4),上杆(6-1)和下杆(6-2)的一端端头分别装有对接接头,H接头在对接接头处将上杆和下杆连接,使上杆和下杆能够相对折叠；担架杆组件垂向位置相对平行设置了两个折叠组件(4),折叠组件(4)包括U型件(4-1)、弯杆(4-2)、接头(4-3),弯杆(4-2)为两个,一端设有接头(4-3)与担架杆连接,另一端为自由端,将两自由端用U型件(4-1)将其连接,使两个弯杆(4-2)能相对朝U型件(4-1)开口处移动实现折叠。本申请可多向收折,重量轻,方便使用。(The application discloses a light helicopter stretcher capable of being folded in multiple directions, wherein a stretcher rod component (6) comprises an upper rod (6-1), a lower rod (6-2), a butt joint (6-3)), and an H joint (6-4), wherein the butt joint is respectively arranged at one end of the upper rod (6-1) and one end of the lower rod (6-2), and the H joint connects the upper rod and the lower rod at the butt joint, so that the upper rod and the lower rod can be folded relatively; two folding assemblies (4) are arranged in parallel relatively at the vertical position of the stretcher bar assembly, each folding assembly (4) comprises a U-shaped part (4-1), a bent bar (4-2) and two joints (4-3), one end of each bent bar (4-2) is provided with the joint (4-3) to be connected with the stretcher bar, the other end of each bent bar is a free end, the two free ends are connected through the U-shaped parts (4-1), and the two bent bars (4-2) can move towards the opening of the U-shaped part (4-1) relatively to realize folding. The foldable chair can be folded in multiple directions, and is light in weight and convenient to use.)

1. A light helicopter stretcher capable of being folded in multiple directions, which comprises a stretcher rod component (6), a folding component (4) and a stretcher cloth component (7), it is characterized in that the two stretcher bar components (6) are arranged in parallel and comprise an upper bar (6-1), a lower bar (6-2), a butt joint (6-3)) and an H joint (6-4), the end heads of one ends of the upper rod (6-1) and the lower rod (6-2) are respectively provided with a butt joint (6-3), the H joint (6-4) connects the upper rod (6-1) and the lower rod (6-2) at a butt joint (6-3) so that the upper rod (6-1) and the lower rod (6-2) can be folded relatively, a B positioning bead (6-9) and a sliding sleeve (6-10) for fixing the B positioning bead are also arranged at the joint of the butt joint (6-3); two folding assemblies (4) are arranged in parallel relatively at the vertical position of the stretcher bar assembly, each folding assembly (4) comprises a U-shaped part (4-1), a bent bar (4-2) and a joint (4-3), the number of the bent bars (4-2) is two, one end of each bent bar is provided with the joint (4-3) to be connected with a stretcher bar, the other end of each bent bar is a free end, the two free ends are connected through the U-shaped parts (4-1), and the two bent bars (4-2) can move towards the opening of the U-shaped part (4-1) relatively to realize folding; a supporting leg assembly (5) for providing supporting force for the stretcher is arranged below the joint (4-3); the stretcher cloth component is designed according to the load-bearing distribution of a human body and comprises main cloth (7-5), a head fixing band (7-1), a trunk fixing band (7-2), a crotch band (7-3), pedals (7-4) and a limiting ring (7-6), and the stretcher cloth and the stretcher rod are fixed together through screws and nuts.

2. A light-weight helicopter stretcher that can be folded in multiple directions according to claim 1 characterized by that the inside of said U-shaped member (4-1) is equipped with the second wedge surface (10-1) and the third wedge surface (10-2) that make the surface contact with the joint (4-3) and limit the position of the curved bar.

3. A light weight helicopter stretcher that can be folded in multiple directions as claimed in claim 1 characterized by that the lower part of the joint (4-3) is provided with a "convex" structure (9-1) that limits the supporting leg assembly.

4. A light weight helicopter stretcher that can be folded in multiple directions as claimed in claim 1 characterized by that the other side of the lower part of the joint (4-3) is equipped with a wedge face one (9-2) that limits the curved bar (4-2) and contacts the surface.

5. A light weight helicopter stretcher that can be folded in multiple directions according to claim 1 characterized by that the lower part of the joint (4-3) further comprises a positioning bead (4-4).

6. A light weight helicopter stretcher foldable in multiple directions as claimed in claim 3 characterized by that the other end of said upper bar (6-1) is provided with a knob (6-5).

7. A light weight helicopter stretcher foldable in multiple directions according to claim 1 characterized by that the other end of said lower bar (6-2) further comprises a roller (6-7), the roller (6-7) is connected with said lower bar (6-2) by a roller joint (6-6).

8. The light weight helicopter stretcher that can be folded in multiple directions of claim 1 further comprising shoulder straps that are polyester straps, one end of which is fixed on the two upper stretcher bars and the other end of which is a free end, the free end is connected with a length-adjustable buckle, and the shoulder straps can be fastened and fixed by nylon buckles after being folded.

9. The light helicopter stretcher capable of being folded in multiple directions according to claim 1, characterized in that the stretcher cloth component (7) comprises a main cloth (7-5), a head fixing belt (7-1), a trunk fixing belt (7-2), a crotch belt (7-3), pedals (7-4) and a limit ring (7-6), wherein the head fixing belt (7-1) and the trunk fixing belt (7-2) are fixed and unfastened by sewing buckles on the cloth surface, and the crotch belt (7-3) is provided with buckles for fixing the thigh; the length of the pedal is adjusted to adapt to people with different heights by sewing the Chinese character 'ri' buckles; the stretcher cloth is mainly sewn through canvas silk cloth, polyester silk belts 7-7, inserting ports, Chinese character 'ri' buckles and buckling belts, the polyester silk belts are arranged at a plurality of positions on the cloth surface according to the weight of the human body; a limiting ring (7-6) for limiting the shoulder strap.

10. The light helicopter stretcher that can be folded in multiple directions of claim 1 wherein the safety belt is a safety belt with two points, the circular hole of the end connecting piece is fixed with the stretcher bar by a screw and a nut; the winch hanging belt is formed by sewing a polyester fiber belt and is fixed by sharing a screw, a nut and a gasket with the safety belt.

Technical Field

The application relates to the technical field of aviation stretchers, in particular to a light helicopter stretcher capable of being folded in multiple directions.

Background

One of the tools that the helicopter is used for transporting the sick and wounded is the stretcher, because the space of helicopter is generally less, and the load is little, the stretcher that needs requires simple structure, light in weight, the stretcher can be folded up, facilitates the use, the stretcher can expand the use outside the cabin and can realize alone transporting the function near sick and wounded to the aircraft. The invention aims at the requirements to design a stretcher which is simple in structure, can be quickly installed and detached, and can be quickly folded and unfolded, so that the wounded and the sick can be quickly transported.

Content of application

Technical objects of the present application: in order to solve the problem that the rescue helicopter can arrange a stretcher along the course, the stretcher can effectively restrain a patient, and the stretcher can be folded in multiple directions, so that the weight is light, and the use is convenient.

The technical scheme is as follows: a light helicopter stretcher capable of being folded in multiple directions comprises two stretcher rod assemblies, a folding assembly and a stretcher cloth assembly, wherein the two stretcher rod assemblies are arranged in parallel relatively and comprise an upper rod, a lower rod, a butt joint and an H joint, the butt joints are respectively arranged at one end heads of the upper rod and the lower rod, the H joint connects the upper rod and the lower rod at the butt joint so that the upper rod and the lower rod can be folded relatively, and a B positioning bead and a sliding sleeve for fixing the B positioning bead are further arranged at the joint of the two butt joints; two folding assemblies are arranged in parallel relatively at the vertical position of the stretcher bar assembly, each folding assembly comprises a U-shaped piece, two bent bars and joints, one ends of the two bent bars are provided with the joints to be connected with the stretcher bar, the other ends of the two bent bars are free ends, the two free ends are connected by the U-shaped pieces, and the two bent bars can move relatively towards the openings of the U-shaped pieces to realize folding; a supporting leg assembly for providing supporting force for the stretcher is arranged below the joint; the stretcher cloth component is designed according to the load-bearing distribution of a human body and comprises main cloth, a head fixing band, a trunk fixing band, a crotch band, pedals and a limiting ring, and the stretcher cloth and the stretcher rod are fixed together through screws and nuts.

Furthermore, a second wedge-shaped surface and a third wedge-shaped surface which are in surface contact with the joint surfaces and limit the bent rod are arranged in the U-shaped part.

Furthermore, the lower part of the joint is provided with a convex structure for limiting the supporting leg assembly.

Furthermore, the other side of the lower part of the joint is provided with a first wedge-shaped surface which is used for limiting the bent rod and is in surface-to-surface contact with the bent rod.

Further, the joint lower part also comprises an A positioning bead.

Furthermore, a spherical handle is arranged at the other end of the upper rod.

Furthermore, the other end of the lower rod also comprises a roller, and the roller is connected with the lower rod through a roller joint.

Furthermore, the stretcher also comprises shoulder belts, wherein the shoulder belts are polyester belts, one ends of the shoulder belts are fixed on the two upper stretcher bars, the other ends of the shoulder belts are free ends, the free ends are connected with the length-adjustable Chinese character 'ri' buckles, and the shoulder belts can be fastened and fixed by nylon hasps after being folded.

Furthermore, the stretcher cloth component comprises main cloth, a head fixing belt, a trunk fixing belt, a crotch belt, pedals and a limiting ring, wherein the head fixing belt and the trunk fixing belt are fixed and unfastened by sewing buckles on the cloth surface, and the crotch belt is provided with a thigh sewing insert buckle for fixing; the length of the pedal is adjusted to adapt to people with different heights by sewing the Chinese character 'ri' buckles; the stretcher cloth is mainly sewn through canvas silk cloth, polyester silk belts, inserting ports, Chinese character buttons and buckling belts, and the polyester silk belts are arranged at a plurality of positions on the cloth surface according to the weight of the human body; a limiting ring for limiting the shoulder belt.

Furthermore, the safety belt has two points, and the end connecting piece round hole is fixed with the stretcher bar through a screw and a nut; the winch hanging belt is formed by sewing a polyester fiber belt and is fixed by sharing a screw, a nut and a gasket with the safety belt.

The application has the following beneficial technical effects:

the stretcher has the advantages of simple structure, light weight and quick operation, and can realize the transportation of the sick and wounded by one person.

Drawings

FIG. 1 is a schematic view of the present application in use on a nacelle.

Wherein: 1-1 front support piece and 2-2 rear support piece

Fig. 2 is a schematic view of a stretcher of the present application.

Fig. 3 is a schematic view of a folding assembly in the present application.

Wherein: 3-1U-shaped part, 3-2 bent rod, 3-3 joint, 3-4 positioning bead and 3-5 supporting leg assembly

Fig. 4 is an enlarged view of a portion a of fig. 3 of the present application.

FIG. 5 is a schematic view of a support leg assembly configuration in accordance with the present application.

Wherein: 5-1 landing leg joint, 5-2 landing legs and 5-3 landing leg foot margin

Fig. 6 is a schematic structural view of the litter assembly of the present application.

Wherein: 6-1 upper rod, 6-2 lower rod, 6-3 butt joint, 6-4H joint, 6-5 spherical joint, 6-6 roller joint, 6-7 roller, 6-8 retaining ring, 6-9 positioning bead and 6-10 sliding sleeve.

Fig. 7 is a schematic structural view of the stretcher cloth of the present application.

Wherein: 7-1 head fixing strap, 7-2 trunk fixing strap, 7-3 crotch strap, 7-4 pedal, 7-5 main cloth, 7-6 spacing ring, 7-7 polyester ribbon

Fig. 8 is a schematic view of the inventive stretcher tab.

Wherein: 8-1 eye-splice, 8-2 Chinese character 'ri' fastener, 8-3 fastener suede and 8-4 fastener hook surface

Fig. 9 is a schematic view of the structure of the stretcher bar joint of the present application.

Wherein: wedge-shaped surfaces on 9-1 convex structure, 9-2 wedge-shaped surface I and 9-3 convex structure

Fig. 10 is a schematic structural view of a U-shaped member of the present application.

Wherein: 10-1 wedge surface II and 10-2 wedge surface III

Fig. 11 is a schematic view of the folding of the stretcher bar of the present application.

Fig. 12 is a schematic view of the folded stretcher frame of the present application.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

The helicopter is installed in a helicopter along the course.