Self-locking plug and endoscope system with same

Abstract

The utility model discloses a self-locking plug. The self-locking plug comprises a plug body, an operating piece, a clamping piece and a resetting piece, the clamping piece is provided with a fixed base body fixedly connected with the plug body, an elastic cantilever connected with the fixed base body and a clamping hook connected with the elastic cantilever; the side wall of the plug body is provided with an exposed hole and a lateral through hole. The operating part is assembled in the plug body and can move between a loosening position and an operating position, the operating part is provided with a linkage structure for linking the elastic cantilever to elastically deform when the operating part moves to the loosening position from the operating position and an operating structure exposed from the exposing hole, and the resetting part is used for enabling the operating part to move to the loosening position; the clamping hook extends out of the side wall of the plug body when the operation piece moves to the loosening position, and the clamping hook is driven by the elastic cantilever to retract into the side wall of the plug body when the operation piece moves to the operation position. Therefore, the purpose that the clamping hook is self-locked by the operating piece is achieved. In addition, the utility model also discloses an endoscope system comprising the self-locking plug and an endoscope.

Description

Technical Field

[0001] This utility model relates to a medical device, and more particularly to a self-locking plug and an endoscope system having the self-locking plug. Background Technology

[0002] Currently, for endoscopes, in order to facilitate free plugging and unplugging between the endoscope and external devices containing light source devices and image processors, the circuit board of the endoscope has an external cable with a plug. The plug on the external cable is used to cooperate with the socket in the external device, thereby achieving the purpose of free plugging and unplugging between the endoscope and the external device.

[0003] However, in the existing external cable plug, its button cannot provide a self-locking function for the latch.

[0004] Therefore, there is an urgent need for a self-locking plug and an endoscope system having the self-locking plug to overcome the above-mentioned defects. Utility Model Content

[0005] One objective of this invention is to provide a self-locking plug in which the latch is self-locked by an operating component.

[0006] Another objective of this invention is to provide an endoscope system in which the latch is self-locked by an operating component.

[0007] To achieve the above objectives, the self-locking plug of this utility model includes a plug body, an operating component, a locking component located within the plug body, and a reset component that provides a reset force to the operating component. The engaging component has a fixed base fixedly connected to the plug body, an elastic cantilever connected to the fixed base, and a hook connected to the elastic cantilever and protruding towards the side wall of the plug body. The side wall of the plug body has an exposure hole and a lateral through hole for the hook to selectively extend into or retract into the side wall. The operating component is assembled within the plug body and can move between a released position and an operating position. The operating component has a linkage structure that, when moved from the operating position to the released position, causes the elastic cantilever to elastically deform towards the side wall of the plug body, and an operating structure exposed through the exposure hole. The resetting component is configured to move the operating component to the released position. When the operating component moves to the released position, the hook extends out of the side wall of the plug body; when the operating component moves to the operating position, the hook is driven by the reset elastic cantilever to retract into the side wall of the plug body.

[0008] Compared with the prior art, the operating member moves to the released position under the reset force provided by the reset member. This causes the moving operating member to elastically deform towards the side wall of the plug body via the linkage structure. As a result, the hook on the elastic cantilever extends out of the side wall of the plug body to meet the need for locking the hook to the external socket. Thus, the operating member achieves self-locking of the hook extending out of the side wall of the plug body under the reset force provided by the reset member. When unlocking, force is applied to move the operating member from the released position to the operating position. This causes the elastic cantilever to automatically reset under its own elastic force, while simultaneously causing the hook to retract into the side wall of the plug body to unlock the socket.

[0009] Preferably, the linkage structure is a first inclined surface that is inclined relative to the moving direction of the operating member and arranged close to the operating structure, and the elastic cantilever is correspondingly provided with a second inclined surface that is inclined to cooperate with the first inclined surface.

[0010] Preferably, the fixed base is connected to the elastic cantilever on each of its opposite sides, the operating member is located between the elastic cantilever, and each elastic cantilever corresponds to the linkage structure and the hook.

[0011] Preferably, the fixed base and the elastic cantilever together form a "U" shape.

[0012] Preferably, the reset element is a reset spring that elastically abuts against the side wall of the operating element and the plug body, and the reset spring is arranged aligned with the operating structure.

[0013] Preferably, the operating member is provided with a first mounting cavity arranged opposite to the operating structure, and the side wall of the plug body is provided with a second mounting cavity arranged opposite to the first mounting cavity, and the reset spring is partially embedded in the first mounting cavity and the second mounting cavity respectively.

[0014] Preferably, the operating member is provided with a first protruding ring structure protruding towards the side wall of the plug body, the first protruding ring structure and the operating member together enclose the first mounting cavity, and the side wall of the plug body is provided with a second protruding ring structure protruding towards the operating member, the second protruding ring structure and the side wall of the plug body together enclose the second mounting cavity.

[0015] Preferably, the elastic cantilever is arranged side by side with the sidewall of the plug body, and the hook is located at the end of the elastic cantilever away from the fixing base.

[0016] Preferably, the lateral through hole is located on the first sidewall of the plug body, and the exposed hole is located on the second sidewall of the plug body, the second sidewall being adjacent to the first sidewall, and the lateral through hole is also arranged forward offset relative to the exposed hole in the insertion direction of the self-locking plug.

[0017] To achieve the above objectives, the endoscope system of this utility model includes an endoscope and the aforementioned self-locking plug, wherein the self-locking plug is directly or indirectly electrically connected to the endoscope. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the endoscope system of this utility model.

[0019] Figure 2 This is an exploded perspective view of the endoscope system of this utility model when the self-locking plug is separated from the endoscope.

[0020] Figure 3 This is a perspective view of the self-locking plug of this utility model when the operating component is moved to the released position.

[0021] Figure 4 yes Figure 3 The diagram shows a self-locking plug viewed in the opposite direction of arrow B.

[0022] Figure 5 It is along Figure 4 Internal view of the section cut along the CC line.

[0023] Figure 6 yes Figure 4 An exploded 3D view of the self-locking plug.

[0024] Figure 7 yes Figure 6 A further exploded 3D diagram.

[0025] Figure 8 yes Figure 7 A three-dimensional exploded view from another angle.

[0026] Figure 9 This is a perspective view of the self-locking plug of this utility model when the operating component is moved to the operating position.

[0027] Figure 10 yes Figure 9 The diagram shown is a plan view of the self-locking plug viewed in the opposite direction of arrow B.

[0028] Figure 11 It is along Figure 10 Internal view cut by the DD line.

[0029] Figure 12 yes Figure 9 An exploded 3D view of the self-locking plug. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to specific implementation examples and accompanying drawings, and the technical solutions of this utility model will be explained. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. Embodiments of this utility model will now be described with reference to the accompanying drawings, in which similar element reference numerals represent similar elements.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Please see Figure 1 and Figure 2 The endoscope system 1000 of this utility model includes a self-locking plug 100 and an endoscope 200. The endoscope 200 is indirectly electrically connected to the self-locking plug 100, so as to achieve free insertion and removal between the endoscope 200 and the external device by means of plugging and unplugging the self-locking plug 100 and the socket of the external device; optionally, in Figure 1 and Figure 2In this example, the endoscope 200 is provided with an external connector 210 for electrical connection. A self-locking plug 100 is connected to one end of a cable 300, and the other end of the cable 300 is connected to an external connector 400. This allows for an indirect electrical connection between the endoscope 200 and the self-locking plug 100 through the interlocking of the external connector 400 and the external connector 210. Since the endoscope 200 and the self-locking plug 100 are electrically connected via the external connector 400 and the cable 300, the self-locking plug 100 and the endoscope 200 can be freely plugged in and out. Obviously, when free plugging and unplugging is not required between the self-locking plug 100 and the endoscope 200, the cable 300 can be directly electrically connected to the circuit board of the endoscope 200. Correspondingly, in this case, the external connector 210 and the external connector 400 are not required. Figure 1 and Figure 2 The above is the limit.

[0033] Combined Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 11 As an example, the self-locking plug 100 includes a plug body 10, an operating member 20, a locking member 30 located within the plug body 10, and a reset member 40 providing a reset force to the operating member 20. The reset member 40 is configured to move the operating member 20 to the released position described below. Alternatively, as an example, the reset member 40 is a reset spring that elastically abuts against the operating member 20 and the side wall 11 of the plug body 10, which reduces the number of parts compared to using magnetic reset. Furthermore, the reset spring is aligned with the operating structure 22 described below, as shown in the diagram. Figure 5 and Figure 11 As shown, this ensures that no torque is generated between the force acting on the operating structure 22 and the reaction force provided by the return spring, preventing the operating member 20 from wobbling during movement, thus ensuring the smooth movement of the operating member 20. Obviously, depending on actual needs, the return spring and operating structure 22 can also be staggered, therefore... Figure 5 and Figure 11 The above is the limit.

[0034] The engaging component 30 has a fixed base 31 fixedly connected to the plug body 10, an elastic cantilever 32 connected to the fixed base 31, and a hook 33 connected to the elastic cantilever 32 and protruding toward the side wall 11 near the plug body 10. Since the fixed base 31 is fixed to the plug body 10, the elastic cantilever 32 can elastically deform relative to the fixed base 31; and since the hook 33 is located on the elastic cantilever 32, the hook 33 can move following the elastic deformation of the elastic cantilever 32 to meet the needs of locking or unlocking. The side wall 11 of the plug body 10 has an exposed hole 12 and a lateral through hole 13 for the hook 33 to selectively extend into or retract into the side wall 11, to meet the needs of the hook 33 extending out of the lateral through hole 13 from the side wall 11 when locking, and the needs of the hook 33 retracting into the side wall 11 from the lateral through hole 13 when unlocking.

[0035] The operating component 20 is assembled inside the plug body 10 and can be used as follows Figure 5 The release position shown and as Figure 11 The operating position shown can be moved between the indicated positions, meaning that the operating member 20 is movably mounted within the plug body 10; furthermore, to improve the smoothness and stability of the movement of the operating member 20 relative to the plug body 10, in Figure 5 and Figure 11 In one example, the operating member 20 has a guide hole 25, and the side wall 11 of the plug body 10 is correspondingly provided with a guide rod 16 that is movably fitted into the guide hole 25. This improves the smoothness and stability of the movement of the operating member 20 relative to the plug body 10 by means of the movable fit between the guide rod 16 and the guide hole 25. Alternatively, in... Figure 5 and Figure 11 In this example, guide rods 16 are arranged in pairs, spaced apart from each other. Correspondingly, guide holes 25 are also arranged in pairs, to allow one guide hole 25 to be moved through by one corresponding guide rod 16. Obviously, depending on actual needs, the number of guide rods 16 and guide holes 25 can be other than those specified. Figure 5 and Figure 11 The diagram shows a limited number of such devices. In addition, the operating member 20 is provided with a linkage structure 21 that, when moved from the operating position to the released position, causes the elastic cantilever 32 to elastically deform near the side wall 11 of the plug body 10, and an operating structure 22 exposed through the exposure hole 12, so as to meet the need for the operator to apply force to the operating structure 22 from the outside of the plug body 10 to cause the elastic cantilever 32 inside the plug body 10 to elastically deform.

[0036] Therefore, the operating element 20 is moved to Figure 3 and Figure 5 When in the released position as shown, the latch 33 extends out of the side wall 11 of the plug body 10, and its state is visible. Figure 4 As shown; the operating element 20 moves to Figure 9 and Figure 11 When the operation position is shown, the latch 33 is retracted into the side wall 11 of the plug body 10 by the reset elastic cantilever 32, and the state is visible. Figure 10 As shown. More specifically, as follows:

[0037] like Figure 3 and Figure 9 As shown, as an example, the lateral through hole 13 is located on the first side wall 11a of the side wall 11 of the plug body 10, and the exposed hole 12 is located on the second side wall 11b of the side wall 11 of the plug body 10, the second side wall 11b being adjacent to the first side wall 11a; so that the moving direction of the latch 33 and the moving direction of the operating member 20 are staggered; furthermore, the lateral through hole 13 is also forwardly offset relative to the exposed hole 12 in the insertion direction of the self-locking plug 100 (see the direction indicated by arrow A), so that the operating structure 22 is not arranged at the mating position of the side wall 11 of the plug body 10 for docking with the socket; wherein, in Figure 10 In the diagram, L represents the docking position.

[0038] At Figure 5 , Figure 8 and Figure 11 In this example, the fixed base 31 has elastic cantilever arms 32 connected to opposite sides. The operating member 20 is positioned between the elastic cantilever arms 32, and each elastic cantilever arm 32 corresponds to a linkage structure 321 and a latch 33. This design allows the operating member 20 to push the elastic cantilever arms 32 together in an elastic deformation as it moves towards the release position, thereby achieving locking of the socket from opposite sides of the fixed base 31, thus improving the reliability of the locking mechanism. Furthermore, regarding... Figure 8 In this example, the fixed base 31 and the elastic cantilever 32 together form a "U" shape. Furthermore, the linkage structure 321 is inclined relative to the direction of movement of the operating member 20 (see the direction indicated by arrow B and the opposite direction) and has a first inclined surface positioned close to the operating structure 22. Correspondingly, the elastic cantilever 32 has a second inclined surface 321 that engages with the first inclined surface. Therefore, by utilizing the engagement of the second inclined surface 321 with the first inclined surface, the reliability of the elastic deformation of the linkage elastic cantilever 32 driving the hook 33 to extend out of the side wall 11 of the plug body 10 during the movement of the operating member 20 to the release position is improved.

[0039] like Figures 6 to 8 and Figure 12 As shown, as an example, the elastic cantilever 32 is arranged side by side with the side wall 11 of the plug body 10, and the hook 33 is located at the end of the elastic cantilever 32 away from the fixed base 31, so that when the hook 33 unlocks for the same stroke, the swing angle of the elastic cantilever 32 during elastic deformation is smaller.

[0040] Combination Figure 5 , Figure 7 , Figure 8 and Figure 11 As an example, the operating member 20 is provided with a first mounting cavity 23 arranged opposite to the operating structure 22, and the side wall 11 of the plug body 10 is provided with a second mounting cavity 14 arranged opposite to the first mounting cavity 23. The return spring is partially embedded in the first mounting cavity 23 and the second mounting cavity 14, respectively; this improves the reliability of the return spring assembly with the operating member 20 and the side wall 11 of the plug body 10, respectively. Specifically, in Figure 5 and Figure 11 As an example, the operating member 20 is provided with a first protruding ring structure 24 protruding towards the side wall 11 of the plug body 10. The first protruding ring structure 24 and the operating member 20 together enclose a first fitting cavity 23. The side wall 11 of the plug body 10 is provided with a second protruding ring structure 15 protruding towards the operating member 20. The second protruding ring structure 15 and the side wall 11 of the plug body 10 together enclose a second fitting cavity 14. Therefore, with the design of the first protruding ring structure 24, the operating member 20 does not need to be thickened in the moving direction of the operating member 20 except for the position where the first protruding ring structure 24 is located, thus reducing weight and saving materials. Similarly, with the design of the second protruding ring structure 15, the side wall 11 of the plug body 10 does not need to be thickened in the moving direction of the operating member 20 except for the position where the second protruding ring structure 15 is located, thus reducing weight and saving materials.

[0041] Compared with the prior art, the operating member 20 moves to the released position under the reset force provided by the reset member 40. This causes the moving operating member 20 to elastically deform towards the side wall 11 of the plug body 10 via the linkage structure 21, thereby causing the hook 33 on the elastic cantilever 32 to extend out of the side wall 11 of the plug body 10 to meet the locking requirement of the hook 33 to the external socket. Thus, the operating member 20 achieves self-locking of the hook 33 extending out of the side wall 11 of the plug body 10 under the reset force provided by the reset member 40. When unlocking, the force is applied to move the operating member 20 from the released position to the operating position, so that the elastic cantilever 32 automatically resets under its own elastic force, while driving the hook 33 to retract into the side wall 11 of the plug body 10 to unlock the socket.

[0042] It is worth noting that although the electrical connection between the self-locking plug 100 and the endoscope 200 has been described above, it is clear that, depending on actual needs, the self-locking plug 100 can also be connected to the external fluid lines of the endoscope 200. Therefore, it is not considered that... Figure 1 and Figure 2 The above is the limit.

[0043] It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, the embodiments disclosed above are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Therefore, equivalent variations made within the scope of the claims of this utility model are still within the scope of this utility model.

Claims

1. A self-locking plug, comprising a plug body, an operating member, a locking member located within the plug body, and a reset member providing a reset force to the operating member, the locking member having a fixed base fixedly connected to the plug body, an elastic cantilever connected to the fixed base, and a hook connected to the elastic cantilever and protruding toward a side wall near the plug body, wherein the side wall of the plug body has an exposure hole and a lateral through hole for the hook to selectively extend into or retract into the side wall, characterized in that, The operating member is assembled within the plug body and can move between a released position and an operating position. The operating member is provided with a linkage structure that, when moved from the operating position to the released position, causes the elastic cantilever to elastically deform near the side wall of the plug body, and an operating structure exposed through the exposure hole. The reset member is configured to move the operating member to the released position. The latch extends out of the side wall of the plug body when the operating member moves to the released position, and retracts into the side wall of the plug body when the operating member moves to the operating position, driven by the reset elastic cantilever.

2. The self-locking plug according to claim 1, characterized in that, The linkage structure is a first inclined surface that is inclined relative to the moving direction of the operating member and arranged close to the operating structure, and the elastic cantilever is correspondingly provided with a second inclined surface that is inclined to cooperate with the first inclined surface.

3. The self-locking plug according to claim 1, characterized in that, The fixed base is connected to the elastic cantilever on each of its opposite sides, the operating member is located between the elastic cantilever, and each elastic cantilever corresponds to the linkage structure and the hook.

4. The self-locking plug according to claim 3, characterized in that, The fixed base and the elastic cantilever together form a "U" shape.

5. The self-locking plug according to claim 1, characterized in that, The reset element is a reset spring that elastically abuts against the side wall of the operating element and the plug body, and the reset spring is arranged aligned with the operating structure.

6. The self-locking plug according to claim 5, characterized in that, The operating component is provided with a first mounting cavity arranged opposite to the operating structure, and the side wall of the plug body is provided with a second mounting cavity arranged opposite to the first mounting cavity. The reset spring is partially embedded in the first mounting cavity and the second mounting cavity respectively.

7. The self-locking plug according to claim 6, characterized in that, The operating member is provided with a first protruding ring structure protruding towards the side wall of the plug body. The first protruding ring structure and the operating member together enclose the first mounting cavity. The side wall of the plug body is provided with a second protruding ring structure protruding towards the operating member. The second protruding ring structure and the side wall of the plug body together enclose the second mounting cavity.

8. The self-locking plug according to claim 1, characterized in that, The elastic cantilever is arranged side by side with the side wall of the plug body, and the hook is located at the end of the elastic cantilever away from the fixed base.

9. The self-locking plug according to claim 1, characterized in that, The lateral through hole is located on the first side wall of the plug body, and the exposed hole is located on the second side wall of the plug body. The second side wall is adjacent to the first side wall, and the lateral through hole is also offset forward relative to the exposed hole in the insertion direction of the self-locking plug.

10. An endoscope system comprising an endoscope, characterized in that, The endoscope system further includes a self-locking plug according to any one of claims 1 to 9, the self-locking plug being electrically connected directly or indirectly to the endoscope.

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