A chest compression machine's binding belt universal joint structure and chest compression machine

Abstract

This invention discloses a universal connection structure for a chest compression machine's strap and the chest compression machine itself. The machine includes: swing arms disposed on both sides of the main unit of the chest compression machine, swinging up and down around the main unit; connecting parts on the swing arms for connecting to a strap compatible with the chest compression machine; universal connecting components on the connecting parts; and universally movable strap connectors connected to the universal connecting components. By placing the universal connecting components and strap connectors at the connecting parts, the straps can move automatically within a certain range after being connected to the strap connectors, allowing the straps to adapt to different body shapes when fixed, ensuring a tight fit between the straps and the main unit. This invention solves the problem in existing chest compression machines where the connection between the straps and the main unit is not free to move, resulting in loose straps in certain areas and loosening during compressions.

Description

Technical Field

[0001] This invention relates to the field of chest compression machine technology, specifically to a universal strap connection structure for a chest compression machine and the chest compression machine itself. Background Technology

[0002] The swing-arm chest compression device was developed to address the technical problem of existing single-point chest compression devices, which can only achieve single-point compression and cannot deform the entire chest cavity contour. For example, patent CN307633514S describes a swing-arm chest compression device that uses a drive component inside the main unit to drive the swing arms on both sides to move synchronously, tightening the straps. The tightening of the straps simultaneously compresses the main unit, achieving chest compression through the tightening of the straps and the overall downward pressure of the main unit. However, in this patent, the ends of the straps in the swing-arm chest compression device are often connected to the main unit via a crossbar. This crossbar cannot be adjusted by swinging. Since the human chest cavity is not a standard cylinder, the straps cannot be fitted to everyone's body shape. If the straps are not properly fitted, some areas may not be tightly secured, leading to loosening during compressions. Summary of the Invention

[0003] This invention provides a universal connection structure for the straps of a chest compression machine and the chest compression machine itself, solving the problem that the connection position between the straps and the main unit of existing chest compression machines cannot move freely, resulting in the straps not being tightly bound to the body in some areas and causing loosening during compression.

[0004] To achieve the above objectives, in a first aspect, the present invention provides the following technical solution: a universal connection structure for a chest compression machine's strap, comprising: a swing arm, disposed on both sides of the main unit of the chest compression machine, and swinging up and down around the main unit; the swing arm is provided with a connecting part for connecting to a strap that is compatible with the chest compression machine; the connecting part is provided with a universal connecting component; the universal connecting component is connected to a strap connector that can move in all directions; the strap connector is connected to the strap; by providing the universal connecting component and the strap connector at the connecting part, the strap can move automatically within a certain range after being connected to the strap connector, so that the strap can adapt to different body shapes when fixed, the strap is close to the body and the main unit is also close to the body.

[0005] Preferably, the connecting part is a protruding arm located in the middle of the swing arm and extending away from the main unit. The connecting part is provided with a transverse through hole, and the universal connecting component is installed in the through hole. The space of the protruding arm can facilitate the installation of the universal connecting component, and also facilitate the installation and connection of the strap connector and the universal connecting component.

[0006] Preferably, the universal joint component is a spherical bearing, and the strap connector is connected to the center hole of the ball head of the spherical bearing. The structure is simple and can stably achieve universal rotation.

[0007] Preferably, the deflection angle of the joint bearing is no more than 15°. This angle is appropriate. If the deflection angle is too large, it will cause excessive shaking when the chest compression machine is in use.

[0008] Preferably, the strap connector is a horizontal bar, which facilitates connection to the end of a strap with width.

[0009] Preferably, the strap also includes a quick-connect buckle at one end of the strap, with a fastening post at one end and a slotted portion on the side of the fastening post. The strap connector is inserted from the slotted portion into a positioning groove inside the fastening post. The quick-connect buckle enables the strap and the strap connector to be quickly connected and disconnected.

[0010] Preferably, the second end of the quick-connect buckle is provided with a through groove for connecting the strap, which facilitates the disassembly and installation of the strap and the quick-connect buckle.

[0011] Secondly, the present invention also provides a chest compression machine, including a main unit and a strap. The main unit has swing arms on both sides that swing up and down around the main unit. The main unit has a drive assembly inside that drives the swing arms to swing synchronously. The swing arms and the strap are connected by a strap universal connection structure as described in the first aspect. By applying the strap universal connection structure to the chest compression machine, the problems in the prior art are solved.

[0012] Preferably, the drive assembly includes a curved turntable disposed inside the host and a power drive assembly for driving the curved turntable to rotate. A plurality of curved protrusions extending along the axial direction of the curved turntable are evenly disposed on one side of the curved turntable. The swing arm is provided with a follower extending to a position corresponding to the edge surface of the curved protrusion. When the curved turntable rotates, the follower moves relative to the edge surface of the curved protrusion, thereby causing the swing arm to swing. The curved turntable can realize the synchronous movement of the two swing arms, and the drive structure is relatively simple and has high reliability.

[0013] Preferably, the curved turntable is located at the bottom of the host and the curved protrusion extends towards the top of the host. The power drive component is located between the upper side of the curved turntable and the top of the host, and is at least partially located in the space between the curved protrusion. The space on the upper side of the curved turntable can be used to set the power drive component, which can reduce the overall height of the host and make the host more flat.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By setting universal connecting parts and strap connectors at the connection point, the straps can move automatically within a certain range after being connected to the strap connectors, so that the straps can adapt to different body shapes when fixed, and the straps and the main unit are also close to the body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the chest compression device of the present invention;

[0017] Figure 2 This is a cross-sectional view of the universal joint structure of the present invention.

[0018] Figure 3 This is a cross-sectional view of the quick-connect buckle of the present invention;

[0019] Figure 4 This is a cross-sectional view of the host unit of the present invention;

[0020] Figure 5 This is a three-dimensional structural diagram of the curved surface turntable of the present invention;

[0021] Figure 6 This is a top view schematic diagram of the chest compression device of the present invention in use;

[0022] Figure 7 This is a front view schematic diagram of the chest compression device of the present invention in use.

[0023] Figure label:

[0024] 1. Main unit, 11. Follower, 12. Reducer, 13. Motor, 15. Bracket, 16. Curved protrusion, 2. Swing arm, 3. Quick-connect buckle, 31. Through slot, 32. Buckle post, 33. Slotted part, 4. Connecting part, 5. Strap, 6. Strap connector, 7. Universal connector, 10. Curved turntable. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] like Figure 1-7As shown, this invention provides a solution to the problem that the connection between the strap and the main unit of an existing chest compression machine is not free to move, resulting in the strap not being tightly bound to the body in certain areas and causing loosening during compression. The invention provides the following technical solution: a universal connection structure for the strap of a chest compression machine, comprising: a swing arm 2, disposed on both sides of the main unit 1 of the chest compression machine, and swinging up and down around the main unit 1; the swing arm 2 is provided with a connecting part 4 for connecting to the strap 5 of the chest compression machine; the connecting part 4 is provided with a universal connecting component 7; the universal connecting component 7 is connected to a universally movable strap connector 6; the strap connector 6 is connected to the strap 5. By setting the universal connecting component 7 and the strap connector 6 at the connecting part 4, the strap 5 can move automatically within a certain range after being connected to the strap connector 6, allowing the strap 5 to adapt to different body shapes when fixed, ensuring that the strap 5 and the main unit are both in close contact with the body.

[0027] Specifically, the connecting part 4 and the swing arm 2 are integrally formed. The universal connecting component 7 can be a component with universal rotation function in the prior art, such as a spherical bearing, a ball-cage universal joint, etc., which can satisfy the automatic movable connection between the universal connecting component 7 and the strap connecting part 6. In this embodiment, the universal connecting component 7 can be a spherical bearing, such as... Figure 2 As shown, the spherical bearing includes an outer ring and a ball head that moves within the outer ring. The ball head has a central through hole. The strap connector 6 is connected to the central hole of the ball head of the spherical bearing. The structure is simple and can stably achieve universal rotation. In addition, the deflection angle of the spherical bearing is no more than 15°. This angle is appropriate. If the deflection angle is too large, it will cause excessive shaking when the chest compression machine is used.

[0028] In this embodiment, as Figure 1 As shown, the connecting part 4 is a protruding arm located in the middle of the swing arm 2 and extending away from the host 1. The connecting part 4 is provided with a transverse through hole, and the universal connecting component 7 is installed in the through hole. The space of the protruding arm can facilitate the installation of the universal connecting component 7, and there is also enough space on both sides of the protruding arm, which also facilitates the installation and connection of the strap connector 6 and the universal connecting component 7.

[0029] In this embodiment, the strap connector 6 is a horizontal bar, which facilitates connection to the end of a strap with width. One end of the strap 5 can be sleeved on the horizontal bar, so that the end of the strap 5 can be in an unfolded state.

[0030] In this embodiment, a quick-connect buckle 3 is also provided at the end of the strap 5, such as... Figure 1-3As shown, one end of the quick-connect buckle 3 has a fastening post 32, and the side of the fastening post 32 is provided with a slotted portion 33. The strap connector 6 is inserted into the positioning groove inside the fastening post 32 from the slotted portion 33. The quick-connect buckle 3 enables quick connection and disconnection of the strap 5 and the strap connector 6. The side wall of the fastening post 32 of the quick-connect buckle 3 has a certain degree of deformation. When the strap connector 6 is inserted into the slotted portion 33, it will open the slotted portion 33. After the strap connector 6 is installed in place, it will be wrapped around the strap connector 6. In this way, the strap connector 6 is not easy to come out and can rotate freely. At the same time, the second end of the quick-connect buckle 3 is provided with a through groove 31 for the strap 5 to pass through and connect, which facilitates the disassembly and installation between the strap 5 and the quick-connect buckle 3.

[0031] In this embodiment, a chest compression machine is also provided, including a main unit 1 and a strap 5. The main unit 1 has swing arms 2 on both sides that swing up and down around it. The main unit 1 has a drive assembly inside that drives the swing arms 2 to swing synchronously. The swing arms 2 and the strap 5 are connected by a universal joint structure as described above. By applying the universal joint structure to the chest compression machine, the problems in the prior art are solved. In this embodiment, as... Figure 4 As shown, the drive assembly includes a curved turntable 10 disposed inside the host 1 and a power drive assembly for driving the curved turntable 10 to rotate. A plurality of curved protrusions 16 extending along the axial direction of the curved turntable 10 are evenly disposed on one side of the curved turntable 10. The swing arm 2 is provided with a follower 11 extending to a position corresponding to the edge surface of the curved protrusion 16. When the curved turntable 10 rotates, the follower 11 cooperates with the edge surface of the curved protrusion 16 to move relative to each other, thereby causing the swing arm 2 to swing. The curved turntable 10 can realize the synchronous movement of the two swing arms 2, and the drive structure is relatively simple and has high reliability.

[0032] To improve the utilization rate of the internal space of the host 1, the curved turntable 10 is set at the bottom of the host 1 and the curved protrusion 16 extends towards the top of the host 1. The power drive assembly is set between the upper side of the curved turntable 10 and the top of the host 1, and is at least partially located in the space between the curved protrusion 16. The space on the upper side of the curved turntable 10 can be used to set the power drive assembly, which can reduce the overall height of the host 1 and make the host 1 more flat. The power drive assembly may include a motor 13 set close to the top of the host 1, a bracket 15 for supporting the motor 13 and connected to the host 1, and a reducer 12 installed at the lower end of the bracket 15. The reducer 12 is connected to the curved turntable 10.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A universal joint connection structure for the straps of a chest compression machine, characterized in that, include: The swing arm (2) is located on both sides of the main unit (1) of the chest compression machine and swings up and down around the main unit (1). The swing arm (2) is provided with a connecting part (4) for connecting with the strap (5) matched with the chest compression machine. The connecting part (4) is provided with a universal connecting component (7). The universal connecting component (7) is connected with a strap connector (6) that can move in all directions. The strap connector (6) is connected to the strap (5). The connecting part (4) is a convex arm located in the middle of the swing arm (2) and extending away from the main unit (1). The connecting part (4) is provided with a transverse through hole. The universal connecting component (7) is installed in the through hole. The universal connecting component (7) is a spherical bearing. The strap connector (6) is connected to the ball head center hole of the spherical bearing.

2. The universal joint connection structure of the chest compression machine according to claim 1, characterized in that: The deflection angle of the spherical bearing is no greater than 15°.

3. The universal joint connection structure of the chest compression machine according to claim 1, characterized in that: The strap connector (6) is a horizontal bar.

4. The universal joint connection structure of the chest compression machine according to claim 3, characterized in that: It also includes a quick-connect buckle (3) provided at the end of the strap (5), one end of the quick-connect buckle (3) has a fastening post (32), the side of the fastening post (32) is provided with a slot (33), and the strap connector (6) is inserted from the slot (33) into the positioning groove inside the fastening post (32).

5. The universal joint connection structure of the chest compression machine according to claim 4, characterized in that: The second end of the quick-connect buckle (3) is provided with a through groove (31) for the binding strap (5) to be threaded and connected.

6. A chest compression machine, comprising a main unit (1) and a strap (5), wherein swing arms (2) are provided on both sides of the main unit (1) for swinging up and down around the main unit (1), and a drive assembly is provided inside the main unit (1) for driving the swing arms (2) to swing synchronously, characterized in that: The swing arm (2) and the strap (5) are connected by a strap universal connection structure as described in any one of claims 1-5.

7. The chest compression machine according to claim 6, characterized in that: The drive assembly includes a curved turntable (10) disposed inside the host (1) and a power drive assembly for driving the curved turntable (10) to rotate. A plurality of curved protrusions (16) extending along the axial direction of the curved turntable (10) are evenly disposed on one side of the curved turntable (10). A follower (11) extending to a position corresponding to the edge surface of the curved protrusion (16) is disposed on the swing arm (2). When the curved turntable (10) rotates, the follower (11) cooperates with the edge surface of the curved protrusion (16) to move relative to each other, thereby causing the swing arm (2) to swing.

8. The chest compression machine according to claim 7, characterized in that: The curved turntable (10) is located at the bottom of the host (1) and the curved protrusion (16) extends toward the top of the host (1). The power drive assembly is located between the upper side of the curved turntable (10) and the top of the host (1) and is at least partially located in the space between the curved protrusion (16).

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