Knob plug and defibrillator

Abstract

The utility model provides a knob plug and a defibrillator, the defibrillator comprises the knob plug, the knob plug comprises a seat body, a spring and an outer cover, the seat body is provided with a first groove extending along the circumferential direction of the seat body, and a positioning structure is arranged in the first groove; the spring is positioned in the first groove and one end is assembled on the positioning structure; the outer cover and the base body are rotationally assembled, the inner wall of the outer cover protrudes inwards to form a first protruding block, the first protruding block is located in the first groove, and one end of the first protruding block abuts against the other end of the spring. The positioning structure is arranged in the first groove of the seat body, one end of the spring is assembled on the positioning structure, and the first convex block on the outer cover abuts against the other end of the spring, so that the end position of the spring is kept stable in the using process, and uneven stress of the knob plug is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of medical devices, and particularly relates to a knob plug and a defibrillator. Background Art

[0002] The knob plug is applied to a defibrillation handle. The defibrillation handle is connected to the defibrillator main body through the knob plug and a connecting wire. One end of the connecting wire is connected to the defibrillation handle, and the other end of the connecting wire is connected with a knob plug. The defibrillator main body is provided with an interface matching the knob plug. The defibrillator releases current, which is conducted to the defibrillation handle through the knob plug and the connecting wire, and the current is applied to the human body through the defibrillation handle to perform defibrillation treatment on the human body.

[0003] The existing knob plug generally includes a seat body and an outer cover, and a spring is included in the structure of the knob plug. The spring is arranged between the gaps of the seat body and the outer cover, and both ends are not fixed. During use, the end positions of the spring are unstable, which easily causes uneven force on the knob plug. Summary of the Utility Model

[0004] The technical object of the utility model is to provide a knob plug, aiming at solving the problems that the position of the spring cannot be fixed and is easy to fall off in the prior art.

[0005] To solve the above technical problems, the utility model is realized as follows. A knob plug includes a seat body, a spring and an outer cover. The outer cover and the seat body are rotationally assembled. The seat body is provided with a first groove extending along the circumferential direction of the seat body, and a positioning structure is arranged in the first groove. The spring is located in the first groove and one end of the spring is assembled to the positioning structure. A first convex block protrudes inward from the inner wall of the outer cover. The first convex block is located in the first groove and one end of the first convex block abuts against the other end of the spring.

[0006] Further, the positioning structure includes a positioning post. The positioning post is fixed to the side wall at one end of the first groove. The axis of the positioning post is curved around the seat body. There is a gap between the side wall of the positioning post and the side wall of the seat body. One end of the spring is sleeved on the positioning post.

[0007] Further, the positioning structure includes a hook. The hook is fixed to the side wall at one end of the first groove. There is a gap between the hook and the side wall of the seat body. One end of the spring is sleeved on the outside of the hook, and the hook end of the hook hooks into the gap of the spring.

[0008] Furthermore, a first limit block is also provided in the first groove, the first limit block includes an inclined surface located on the side facing the positioning column, the first protrusion includes a first side surface located on the side away from the positioning column, and when the first protrusion abuts against the side of the first limit block facing the positioning column, the first side surface is attached to the inclined surface and self-locked.

[0009] Furthermore, the first limit block also includes an arc surface located on the side away from the positioning column; the first protrusion also includes a second side surface located on the side facing the positioning column; the arc surface and the second side surface are in a non-self-locking state when they are in contact; the seat body is also provided with a second groove extending along the circumference of the seat body, and a second limit block with the same shape as the first limit block is arranged in the second groove; the inner wall of the outer cover also protrudes inward to form a second protrusion with the same shape as the first protrusion, and the first limit block, the second limit block, the first protrusion and the second protrusion are all elastic; the seat body is provided with a first notch for the first protrusion to enter the first groove and a second notch for the second protrusion to enter the second groove.

[0010] Furthermore, the length of the second groove is shorter than that of the first groove, and the second groove is used to limit the rotation angle of the outer cover.

[0011] Furthermore, the first limiting block and the second limiting block are symmetrically arranged in the circumferential direction of the seat body; the first protrusion and the second protrusion are located at the same height of the inner wall of the outer cover and are symmetrically arranged.

[0012] Furthermore, a first flange and a second flange are provided on the peripheral wall of the seat body, the diameter of the first flange is smaller than the diameter of the second flange, the inner diameter of the outer cover is larger than the diameter of the first flange and smaller than the diameter of the second flange, and the outer cover is sleeved outside the first flange and abuts against the side of the second flange facing the first flange.

[0013] Furthermore, the first notch and the second notch are symmetrically arranged on the first flange.

[0014] Furthermore, a defibrillator is provided, comprising a defibrillator body, a connecting line and a defibrillator handle, wherein one end of the connecting line is connected to the defibrillator handle, and the other end of the connecting line is connected to a knob plug as described in any one of the above items, and the defibrillator body is provided with an interface matching the knob plug.

[0015] Compared with the prior art, a knob plug of the present utility model has the following beneficial effects: By providing a positioning structure in the first groove of the seat body, one end of the spring is assembled to the positioning structure, and the first protrusion on the outer cover abuts against the other end of the spring, so that the position of the end of the spring is maintained stable during use, avoiding uneven force on the knob plug and improving the overall stability of the knob plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exploded schematic view of a knob plug in an embodiment of the present utility model;

[0017] Figure 2 is an overall structural schematic view of an outer cover from a first perspective in an embodiment of the present utility model;

[0018] Figure 3 is an overall structural schematic view of a seat body in an embodiment of the present utility model;

[0019] Figure 4 is an overall structural schematic view of an outer cover from a second perspective in an embodiment of the present utility model.

[0020] In the drawings, each reference numeral represents:

[0021] 1. Seat body;

[0022] 2. First flange; 21. First notch; 22. Second notch; 23. First sub-groove; 24. Second sub-groove; 25. Third sub-groove; 26. Fourth sub-groove; 27. Positioning post;

[0023] 3. Second flange; 31. First limiting block; 32. Second limiting block; 311. Arc surface; 312. Inclined surface;

[0024] 4. Outer cover; 41. First protrusion; 42. Second protrusion; 43. Anti-slip groove; 44. Positioning block;

[0025] 5. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, but should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0029] A defibrillator is provided, which includes a defibrillator main body, a connecting wire, a defibrillation handle, etc. The defibrillator includes a control module, a charging and discharging module, etc. Among them, the control module is used to set and adjust relevant parameters; the charging and discharging module is responsible for generating and controlling the current pulse required for defibrillation. One end of the connecting wire is connected to the defibrillation handle, and the other end of the connecting wire is connected with a knob plug. The defibrillator main body is provided with an interface matching the knob plug. The defibrillator releases current, which is conducted to the defibrillation handle through the plug and the connecting wire, and the current is applied to the human body through the defibrillation handle to perform defibrillation treatment on the human body. It should be understood that the composition of the above defibrillator is only for illustration. In actual applications, the composition structure of the defibrillator can be adaptively changed and is not limited herein.

[0030] Please refer to Figures 1 to 3 , the knob plug includes a seat body 1, a spring 5 and an outer cover 4. The outer cover 4 is rotationally assembled with the seat body 1. The seat body 1 is provided with a first groove extending along the circumferential direction of the seat body 1, and a positioning structure is arranged in the first groove; the spring 5 is located in the first groove and one end is assembled to the positioning structure; a first convex block 41 protrudes inward from the inner wall of the outer cover 4. When the outer cover 4 is assembled with the seat body 1, the first convex block 41 is placed in the first groove and one end abuts against the other end of the spring 5.

[0031] By arranging the positioning structure in the first groove of the seat body 1, one end of the spring 5 is assembled to the positioning structure, and the first convex block 41 on the outer cover 4 abuts against the other end of the spring 5, so that the end position of the spring 5 is maintained stable during use, avoiding uneven force on the knob plug and improving the overall stability of the knob plug.

[0032] The first groove includes a first sub-groove 23 and a second sub-groove 24 .

[0033] Preferably, see Figure 1 and Figure 3 The positioning structure includes a positioning column 27, which is fixed to the side wall of one end of the second sub-slot 24. The axis of the positioning column 27 is curved around the seat body 1. There is a gap between the side wall of the positioning column 27 and the side wall of the seat body 1, and the spring 5 is sleeved on the positioning column 27.

[0034] One end of the spring 5 is sleeved on the positioning column 27, so that the end of the spring 5 is stable and the spring 5 is not easy to fall off. The axis of the positioning column 27 is curved, so that the spring 5 can be bent along the circumference of the seat body 1 to adapt to the shape of the first groove, thereby improving the overall stability of the knob plug;

[0035] Optionally, in one embodiment, the positioning structure may also be a hook, which is fixed to the side wall of one end of the second sub-slot 24, with a gap between the hook and the side wall of the seat body 1, one end of the spring 5 is sleeved on the outside of the hook, and the hook end of the hook is hooked in the gap of the spring 5. In this way, one end of the spring 5 can be fixed, improving the overall stability of the knob plug.

[0036] Furthermore, a first stopper 31 is also provided in the first groove, and the first stopper 31 is located between the first sub-groove 23 and the second sub-groove 24. The first stopper 31 includes an inclined surface 312 located on the side facing the positioning column 27, and the first protrusion 41 includes a first side surface located on the side away from the positioning column 27 and a second side surface on the side facing the positioning column 27. When the first protrusion 41 moves to the second sub-groove 24 and abuts against the side of the first stopper 31 facing the positioning column 27, the first side surface of the first protrusion 41 fits with the inclined surface 312 of the first stopper 31 and self-locks. The first side surface is an arc surface with a relatively gentle slope, and the second side surface is an arc surface with a relatively steep slope; the angle between the inclined surface 312 and the peripheral wall of the seat body 1 can be 70° to 80°.

[0037] Specifically, an external force is applied in the direction indicated on the outer cover 4 to rotate the outer cover 4, driving the first protrusion 41 to move from the first sub-groove 23 to the second sub-groove 24, during which the first protrusion 41 abuts against the spring 5 and compresses the spring 5. After the external force is stopped, the first protrusion 41 moves toward the first limit block 31 under the elastic force of the spring 5. When the first protrusion 41 abuts against the side of the first limit block 31 facing the positioning column 27, the first side surface of the first protrusion 41 abuts against the inclined surface 312 of the first limit block 31. Because the first side surface and the inclined surface 312 of the first limit block 31 are in contact and self-locking, the assembled knob plug will not be loosened by itself due to the elastic force of the spring 5, ensuring stable and reliable assembly. The angle between the inclined surface 312 and the peripheral wall of the seat body 1 can be 70°, 75°, 80°, etc., which can achieve a better self-locking effect.

[0038] Further, the first limiting block 31 further includes an arc surface 311 on a side away from the positioning post 27; when the arc surface 311 is in contact with the second side surface, it is in a non-self-locking state; the seat body 1 is further provided with a second groove extending along the circumferential direction of the seat body 1, and a second limiting block 32 having the same shape as the first limiting block 31 is arranged in the second groove; an inner wall of the outer cover 4 further protrudes inward to form a second convex block 42 having the same shape as the first convex block 41, and the first limiting block 31, the second limiting block 32, the first convex block 41, and the second convex block 42 are all elastic; the seat body 1 is provided with a first notch 21 for the first convex block 41 to enter the first groove and a second notch 22 for the second convex block 42 to enter the second groove.

[0039] Wherein, the second groove includes a third sub-groove 25 and a fourth sub-groove 26, and the second limiting block 32 is located between the third sub-groove 25 and the fourth sub-groove 26. The first notch 21 is opened on a side wall of the first sub-groove 23, and the second notch 22 is opened on a side wall of the third sub-groove 25.

[0040] During the assembly of the existing knob plug, there are difficulties. The reason is that the structure of the existing knob plug includes a spring 5, but the structure of this spring 5 is relatively thin. When assembling the plug, the operator must fix the spring 5 with one hand while performing other assembly steps. Otherwise, the spring 5 is very likely to fall off, resulting in the failure of assembly, which directly makes the assembly process of the existing knob plug more difficult and time-consuming.

[0041] In the present application, during assembly, the first convex block 41 can enter the first sub-groove 23 from the first notch 21 and the second convex block 42 can enter the third sub-groove 25 from the second notch 22. When an external force is applied to rotate the outer cover 4 to drive the first convex block 41 to move, when the second side surface of the first convex block 41 abuts against the arc surface 311 of the first limiting block 31, the slope of the second side surface is relatively gentle, and the arc surface 311 can guide the first convex block 41 to smoothly slide over the first limiting block 31 to reach the second sub-groove 24. During this period, one end of the spring 5 is pre-assembled on the positioning structure, and the first convex block 41 abuts against the other end of the spring 5. Without having to fix the spring 5 by hand, rotating the outer cover 4 can drive the first convex block 41 to move to achieve assembly, simplifying the assembly complexity and reducing the process time consumption. At the same time, the second convex block 42 can enter the third sub-groove 25 from the second notch 22 and move from the third sub-groove 25 to the fourth sub-groove 26 through the same process, realizing the assembly of the outer cover 4 and the seat body 1.

[0042] Further, the first limiting block 31 and the second limiting block 32 are symmetrically arranged in the circumferential direction of the seat body 1; the first convex block 41 and the second convex block 42 are located at the same height of the outer cover 4 and are symmetrically arranged. The symmetrical arrangement of the double convex blocks and the double limiting blocks can increase the contact area between the outer cover 4 and the seat body 1, enhancing the locking connection strength and stability between the outer cover 4 and the seat body 1.

[0043] Furthermore, the length of the second groove is shorter than that of the first groove, and the second groove is used to define the rotation angle of the outer cover 4. The second convex block 42 can only move a relatively short distance within the second groove, so that the rotation angle of the outer cover 4 relative to the seat body 1 can be limited to 0° to 90°, ensuring assembly stability and facilitating use.

[0044] Specifically, the rotation angle of the outer cover 4 relative to the seat body 1 can be angles such as 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, etc.

[0045] Furthermore, a first flange 2 and a second flange 3 are provided on the peripheral wall of the seat body 1. The diameter of the first flange 2 is smaller than that of the second flange 3. The inner diameter of the outer cover 4 is larger than the diameter of the first flange 2 and smaller than the diameter of the second flange 3. The outer cover 4 is sleeved outside the first flange 2 and abuts against one side of the second flange 3 facing the first flange 2. Among them, the first groove and the second groove are arranged in the gap between the first flange 2 and the second flange 3, and the first notch 21 and the second notch 22 are symmetrically arranged on the first flange 2.

[0046] Specifically, when the outer cover 4 is assembled with the seat body 1, first align the first convex block 41 with the first notch 21 and the second convex block 42 with the second notch 22. Move one end of the outer cover 4 towards the second flange 3 until the bottom end of the outer cover 4 abuts against the second flange 3, and then rotate the outer cover 4 to achieve locking. The locking process is as described above and will not be elaborated here. And through the radial positioning effect of the first flange 2 and the second flange 3 on the first convex block 41 and the second convex block 42, the axial position of the outer cover 4 relative to the seat body 1 can be controlled to prevent the outer cover 4 from falling off.

[0047] Furthermore, at least two anti-slip grooves 43 are arranged at intervals on the outer wall of the outer cover 4. Specifically, two, three, four, etc. anti-slip grooves 43 can be arranged at intervals on the outer wall of the outer cover 4 to increase the friction when the user rotates the outer cover 4.

[0048] Furthermore, an arrow mark indicating the locking direction can also be arranged between the anti-slip grooves 43 on the outer wall of the outer cover 4. After the outer cover 4 is assembled on the seat body 1, the outer cover 4 can be rotated in the direction indicated by the arrow to lock the outer cover 4 and the seat body 1.

[0049] Furthermore, please refer to Figure 4 , two triangular positioning blocks 44 are symmetrically arranged on the inner wall of the outer cover 4. A positioning structure matching the positioning blocks 44 is provided on the interface of the defibrillator main body. When plugging in, align the positioning blocks 44 with the positioning structure to connect the knob plug with the interface.

[0050] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A knob plug, characterized in that: It includes a seat body, a spring and an outer cover, the outer cover and the seat body are rotatably assembled, the seat body is provided with a first groove extending along the circumference of the seat body, a positioning structure is provided in the first groove; the spring is located in the first groove and one end is assembled to the positioning structure; the inner wall of the outer cover protrudes inward to form a first protrusion, the first protrusion is located in the first groove and one end abuts against the other end of the spring.

2. A knob plug according to claim 1, characterized in that: The positioning structure includes a positioning column, which is fixed to the side wall of one end of the first groove. The axis of the positioning column is curved around the seat body. There is a gap between the side wall of the positioning column and the side wall of the seat body. One end of the spring is sleeved on the positioning column.

3. The knob plug according to claim 1, characterized in that: The positioning structure includes a hook, which is fixed to the side wall of one end of the first groove. There is a gap between the hook and the side wall of the seat body. One end of the spring is sleeved on the outside of the hook, and the hook end of the hook is hooked in the gap of the spring.

4. The knob plug according to claim 2, characterized in that: A first limit block is also provided in the first groove, the first limit block includes an inclined surface located on the side facing the positioning column, the first protrusion includes a first side surface located on the side away from the positioning column, and when the first protrusion abuts against the side of the first limit block facing the positioning column, the first side surface is in contact with the inclined surface and self-locked.

5. The knob plug according to claim 4, characterized in that: The first limit block also includes an arc surface located on the side away from the positioning column; the first protrusion also includes a second side surface located on the side facing the positioning column; the arc surface and the second side surface are in a non-self-locking state when they are in contact; the seat body is also provided with a second groove extending along the circumference of the seat body, and a second limit block with the same shape as the first limit block is arranged in the second groove; the inner wall of the outer cover also protrudes inward to form a second protrusion with the same shape as the first protrusion, and the first limit block, the second limit block, the first protrusion and the second protrusion are all elastic; the seat body is provided with a first notch for the first protrusion to enter the first groove and a second notch for the second protrusion to enter the second groove.

6. The knob plug according to claim 5, characterized in that: The length of the second groove is shorter than that of the first groove, and the second groove is used to limit the rotation angle of the outer cover.

7. The knob plug according to claim 5, characterized in that: The first limiting block and the second limiting block are symmetrically arranged in the circumferential direction of the seat body; the first protrusion and the second protrusion are located at the same height of the inner wall of the outer cover and are symmetrically arranged.

8. The knob plug according to claim 5, characterized in that: A first flange and a second flange are provided on the peripheral wall of the seat body, the diameter of the first flange is smaller than the diameter of the second flange, the inner diameter of the outer cover is larger than the diameter of the first flange and smaller than the diameter of the second flange, and the outer cover is sleeved outside the first flange and abuts against the side of the second flange facing the first flange.

9. The knob plug according to claim 8, characterized in that: The first notch and the second notch are symmetrically arranged on the first flange.

10. A defibrillator, characterized in that: The invention comprises a defibrillator body, a connecting line and a defibrillator handle, wherein one end of the connecting line is connected to the defibrillator handle, and the other end of the connecting line is connected to the knob plug as claimed in any one of claims 1 to 9, and the defibrillator body is provided with an interface matching the knob plug.

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