Waterproof cap assembly and endoscope

Abstract

The embodiment of the utility model provides a waterproof cap assembly and an endoscope, and relates to the field of endoscopes. The waterproof cap assembly comprises a waterproof cap, a sealing piece and an inner support, the sealing piece is arranged in the waterproof cap and connected with the inner wall of the waterproof cap, the inner support is contained in the waterproof cap, the inner support is connected with the waterproof cap and the sealing piece, and the sealing piece is tightly pressed on the inner wall of the waterproof cap through the inner support so that sealing fit can be achieved. The leak detection assembly is provided with a shaft hole and a plug, the leak detection assembly is arranged on the waterproof cap, the shaft hole is communicated with the interior of the waterproof cap, and at least part of the plug is contained in the shaft hole and can move in the shaft hole. The sealing piece and the waterproof cap are in large-area contact fit and are matched with the inner support to be tightly pressed on the inner wall of the waterproof cap, it is guaranteed that the sealing piece cannot be separated from the waterproof cap, and then good sealing performance and sealing effect are guaranteed. The embodiment of the utility model further provides an endoscope. The endoscope comprises the waterproof cap assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of endoscopes, in particular to a waterproof cap assembly and endoscope. BACKGROUND

[0002] The medical electronic endoscope generally has a handle part and an insertion part, the handle part is internally provided with signal processing modules and other electronic components, and signals are transmitted to the outside through the electrical plug provided on the handle part, so the endoscope shell has waterproof requirements; and to avoid cross infection during use, the endoscope needs to be soaked in cleaning liquid for thorough cleaning before / after use, so a waterproof cover is also used in cleaning to further seal the electrical plug, so as to ensure that the cleaning liquid does not damage the endoscope.

[0003] However, the existing waterproof cover has poor sealing effect, and is prone to leakage due to loosening of the sealing ring after long-term use. SUMMARY

[0004] The waterproof cap assembly and endoscope can improve the sealing performance, solve the problem of poor sealing effect of the existing waterproof cover, and simultaneously serve as a connecting piece for sealing performance testing of the endoscope, achieving multiple uses of one product.

[0005] The embodiments of the utility model can be implemented as follows:

[0006] The embodiments of the utility model provide a waterproof cap assembly, which comprises:

[0007] a waterproof cap;

[0008] a sealing piece, which is arranged inside the waterproof cap and is in contact with the inner wall of the waterproof cap;

[0009] an inner support, which is accommodated in the waterproof cap, is in contact with the waterproof cap and the sealing piece, and is used to press the sealing piece and make the sealing piece sealingly cooperate with the waterproof cap;

[0010] a leak detection assembly, which is provided with a shaft hole and a plug, is arranged on the waterproof cap, is in communication with the inside of the waterproof cap, and is at least partially accommodated in the shaft hole and can move in the shaft hole.

[0011] Optionally, the inner support is further connected with a positioning and locking piece, which is used to be connected with the socket mounting seat of the endoscope.

[0012] Optionally, the sealing piece is provided with a convex point ring, which is used to sealingly contact with the socket mounting seat when the positioning and locking piece is locked and connected with the socket mounting seat.

[0013] Optionally, the socket mounting base is provided with a positioning hole and a locking groove, the positioning hole is arranged along the axial direction of the socket mounting base, the locking groove is arranged along the circumferential direction of the socket mounting base, the positioning hole and the locking groove are communicated, and the positioning and locking piece can be inserted into the locking groove through the positioning hole.

[0014] Optionally, the leak detection assembly comprises a leak detection connecting nozzle, the plug comprises a top rod, a spring and a first sealing ring, the shaft hole is arranged in the leak detection connecting nozzle, the top rod is at least partially accommodated in the shaft hole, the first sealing ring is arranged on the top rod, and the spring is connected with the top rod and used for driving the top rod to move and enabling the first sealing ring to seal the shaft hole.

[0015] Optionally, a plurality of vertical grooves are arranged on the circumferential outer side wall of the sealing piece, a plurality of convex edges are arranged on the inner side wall of the waterproof cap, the plurality of convex edges correspond to the plurality of vertical grooves respectively, and the plurality of convex edges can be inserted into the plurality of vertical grooves respectively.

[0016] Optionally, the inner side wall of the waterproof cap is further provided with a reinforced sealing ring groove, and a reinforced sealing ring is arranged in the reinforced sealing ring groove.

[0017] Optionally, the waterproof cap has a rotating handle part and an anti-skid convex part, and the rotating handle part and the anti-skid convex part are both located on the circumferential outer wall of the waterproof cap.

[0018] Optionally, the waterproof cap and the inner support are both provided with a stop position, and the stop position is used for being connected with the stop surface of the leak detection assembly.

[0019] The embodiment of the utility model further provides a kind of endoscope, comprising the waterproof cap assembly of above.

[0020] The embodiment of the utility model has the following beneficial effects:

[0021] The waterproof cap assembly comprises a waterproof cap, a sealing piece, an inner support and a leak detection assembly, the sealing piece is arranged inside the waterproof cap, the sealing piece is connected with the inner wall of the waterproof cap, the inner support is accommodated in the waterproof cap, the inner support is connected with the waterproof cap and the sealing piece respectively, the inner support is pressed on the inner wall of the waterproof cap to realize sealing cooperation, the leak detection assembly is provided with a shaft hole and a plug, the leak detection assembly is arranged on the waterproof cap, the shaft hole is communicated with the inside of the waterproof cap, and the plug is at least partially accommodated in the shaft hole and can move in the shaft hole. The sealing piece is in large-area contact with the waterproof cap and is pressed on the inner wall of the waterproof cap with the cooperation of the inner support, so that the sealing piece cannot be separated from the waterproof cap, and good sealing performance and sealing effect are ensured. The waterproof cap assembly further comprises a leak detection assembly, which can be used as a connecting piece when the endoscope needs to be tested for sealing performance.

[0022] The endoscope comprises the waterproof cap assembly, and has all the functions of the waterproof cap assembly. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the premise of the drawings.

[0024] Figure 1 The schematic diagram of the appearance structure of the waterproof cap assembly provided in the embodiments of the present application is shown in the figure.

[0025] Figure 2 The schematic diagram of the internal structure of the waterproof cap assembly provided in the embodiments of the present application is shown in the figure.

[0026] Figure 3 The schematic diagram of the axial section of the waterproof cap assembly provided in the embodiments of the present application is shown in the figure.

[0027] Figure 4 The schematic diagram of the structure of the waterproof cap provided in the embodiments of the present application is shown in the figure.

[0028] Figure 5 The schematic diagram of the structure of the sealing member provided in the embodiments of the present application is shown in the figure.

[0029] Figure 6 The schematic diagram of the structure of the inner support provided in the embodiments of the present application is shown in the figure.

[0030] Figure 7 The schematic diagram of the structure of the socket mounting seat provided in the embodiments of the present application is shown in the figure.

[0031] Figure 8 The schematic diagram of the structure of the leak detection connecting nozzle provided in the embodiments of the present application is shown in the figure.

[0032] Figure 9 The schematic diagram of the waterproof cap provided with the anti-skid protrusion in the embodiments of the present application is shown in the figure.

[0033] Figure 10 The schematic diagram of the reinforced sealing ring provided in the embodiments of the present application is shown in the figure.

[0034] Figure 11 The schematic diagram of the waterproof cap assembly installed in the endoscope handle shell in the embodiments of the present application is shown in the figure.

[0035] Figure 12 The schematic diagram of the cross section of the waterproof cap assembly installed in the endoscope handle shell in the embodiments of the present application is shown in the figure.

[0036] Icon: 1 - waterproof cap; 10 - ridge; 11 - reinforced sealing ring groove; 111 - reinforced sealing ring; 12 - rotating handle part; 13 - anti-skid protrusion; 14 - insertion groove; 15 - embedding groove; 16 - receiving ring block; 2 - sealing element; 20 - protrusion ring; 21 - vertical groove; 22 - insertion block; 23 - embedding ring; 3 - inner support; 30 - positioning locking element; 31 - stop position; 32 - inlaying part; 33 - force receiving part; 4 - socket mounting seat; 40 - positioning hole; 41 - locking groove; 5 - fastener; 6 - leak detection assembly; 60 - leak detection connecting nozzle; 61 - top rod; 62 - spring; 63 - first sealing ring; 64 - second sealing ring; 7 - handle shell. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0039] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0040] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0041] In addition, if the terms "first", "second" and the like appear, they are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0042] The terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0043] Unless otherwise explicitly specified and limited, the terms "arranged", "connected" and the like should be interpreted broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0044] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0045] The waterproof cap assembly and the endoscope provided in the embodiments of the utility model can solve the problem of poor sealing of the waterproof cover of the existing endoscope, and the following will be described in detail.

[0046] Please refer to Figures 1 to 3 The waterproof cap assembly comprises a waterproof cap 1, a sealing element 2, an inner support 3 and a leak detection assembly 6. The sealing element 2 is arranged inside the waterproof cap 1, and the sealing element 2 is in contact with the inner wall of the waterproof cap 1. The inner support 3 is accommodated in the waterproof cap 1, and the inner support 3 is in contact with the waterproof cap 1 and the sealing element 2 respectively. The inner support 3 presses the sealing element 2 and makes the sealing element 2 sealingly cooperate with the waterproof cap 1. The sealing element 2 is pressed against the inner wall of the waterproof cap 1 by the large-area contact and fit of the sealing element 2 and the waterproof cap 1 and the cooperation of the inner support 3, so that the sealing element 2 is prevented from separating from the waterproof cap 1, and good sealing performance and sealing effect are ensured.

[0047] Reference Figure 3 With Figure 4The waterproof cap 1 is cover-shaped, the inside of the waterproof cap 1 is hollow, and the hollow inside is used for accommodating the sealing element 2, the inner support 3 and the socket mounting seat 4 of the endoscope. One end of the waterproof cap 1 is open, and the other end has a cover, the cover is provided with a through hole in communication with the inside of the waterproof cap 1, the open end of the waterproof cap 1 is used for inserting and connecting the socket mounting seat 4, and the end of the waterproof cap 1 provided with the cover is provided with a leak detection assembly 6, part of the leak detection assembly 6 passes through the through hole in the cover; the leak detection assembly 6 is provided with a shaft hole and a plug, the shaft hole is in communication with the inside of the waterproof cap 1, and the plug is at least partially accommodated in the shaft hole and can move in the shaft hole.

[0048] The waterproof cap 1 is cover-shaped, the inside of the waterproof cap 1 is hollow, and the hollow inside is used for accommodating the sealing element 2, the inner support 3 and the socket mounting seat 4 of the endoscope. One end of the waterproof cap 1 is open, and the other end has a cover, the cover is provided with a through hole in communication with the inside of the waterproof cap 1, the open end of the waterproof cap 1 is used for inserting and connecting the socket mounting seat 4, and the end of the waterproof cap 1 provided with the cover is provided with a leak detection assembly 6, part of the leak detection assembly 6 passes through the through hole in the cover; the leak detection assembly 6 is provided with a shaft hole and a plug, the shaft hole is in communication with the inside of the waterproof cap 1, and the plug is at least partially accommodated in the shaft hole and can move in the shaft hole.

[0049] Reference Figure 5 and Figure 3 In order to prevent the sealing element 2 from rotating on the inner side wall of the waterproof cap 1, a plurality of ribs 10 are arranged on the inner side wall of the waterproof cap 1, each rib 10 is arranged along the axial direction of the waterproof cap 1, and the plurality of ribs 10 are arranged at equal intervals; correspondingly, a plurality of vertical grooves 21 are arranged on the circumferential outer side wall of the sealing element 2, and the plurality of vertical grooves 21 are matched with the plurality of ribs 10 respectively, so that the ribs 10 can be inserted into the vertical grooves 21, thereby limiting the sealing element 2 and preventing the sealing element 2 from rotating relative to the waterproof cap 1.

[0050] Because the number of vertical grooves 21 on the sealing element 2 is large, the sealing element 2 and the waterproof cap 1 are not easy to align when assembled, therefore, an insertion block 22 is arranged on the outer wall of the sealing element 2, and an insertion groove 14 is arranged on the side wall of the waterproof cap 1, when the sealing element 2 is assembled into the waterproof cap 1, the insertion block 22 can be directly aligned with the insertion groove 14, thereby realizing quick assembly connection.

[0051] In the embodiment, the sealing element 2 and the waterproof cap 1 are also connected by sealing glue, so as to further increase the firmness of the connection and the reliability of the sealing.

[0052] Reference Figure 6 , Figure 7 and Figure 3 The inner support 3 is arranged in the inside of the waterproof cap 1 and is connected with the sealing element 2 and the waterproof cap 1. The inner support 3 comprises a clamping portion 32 and a bearing portion 33, the clamping portion 32 is located at one end of the bearing portion 33, the clamping portion 32 is clamped between the receiving ring block 16 and the cover of the waterproof cap 1, and the bearing portion 33 is connected with the sealing element 2.

[0053] The inner support 3 is further connected with a positioning and locking member 30, which is used to be connected with the socket mounting seat 4 of the endoscope. Specifically, the socket mounting seat 4 is provided with a positioning hole 40 and a locking groove 41. The positioning hole 40 is arranged along the axial direction of the socket mounting seat 4, and the locking groove 41 is arranged along the circumferential direction of the socket mounting seat 4. The positioning hole 40 and the locking groove 41 are in communication. The positioning and locking member 30 is aligned with the positioning hole 40, and the waterproof cap 1 and the inner support 3 are pressed downward, so that the positioning and locking member 30 passes through the positioning hole 40 and reaches the initial end of the locking groove 41. Then, the waterproof cap 1 and the inner support 3 are twisted, so that the positioning and locking member 30 slides along the locking groove 41 to the end of the locking groove 41, thereby realizing the connection and fixation of the inner support 3 and the socket mounting seat 4. Alternatively, a smooth arc surface is arranged between the positioning hole 40 and the locking groove 41 to realize smooth transition, so that the positioning and locking member 30 can smoothly slide and move.

[0054] Of course, the waterproof cap 1 and the inner support 3 are both provided with a stop position 31, which is used to limit the waterproof cap 1 and the inner support 3 from being displaced relative to each other when being rotated, so as to smoothly connect the inner support 3 and the socket mounting seat 4 together. Meanwhile, the stop position 31 can also realize accurate and rapid assembly, and reduce the probability of failure operation. In the embodiment, the stop position 31 of the waterproof cap 1 is a straight plane arranged on the side wall of the cover through hole, and the stop position 31 of the inner support 3 is another straight plane arranged on the outer wall of the inlaying part 32. The stop position 31 of the waterproof cap 1 is in contact with the stop position 31 of the inner support 3. Such a foolproof design can greatly reduce the assembly failure. In other embodiments, the stop position 31 can also have other forms.

[0055] In order to ensure that the connected leak detection assembly 6 does not rotate relative to the waterproof cap 1, a stop surface is designed on the outer wall of the leak detection connecting nozzle 60 of the leak detection assembly 6. The stop position 31 of the waterproof cap 1 and the inner support 3 can be in surface-to-surface contact with the stop surface of the leak detection connecting nozzle 60.

[0056] The lower end surface of the inner support 3 is also designed as a wedge surface, so as to play a guiding role when the inner support 3 is inserted into the socket mounting seat 4.

[0057] Again refer to Figure 3The inner side wall of the sealing member 2 is further provided with a convex ring 20 along the circumferential direction of the sealing member 2, and the sealing member 2 is sealingly connected with the socket mounting seat 4 through the convex ring 20. The number of the convex ring 20 can be multiple, and the multiple convex rings 20 are arranged at intervals. In the embodiment, the number of the convex ring 20 is three, two of which are arranged at one end close to the embedded ring 23, and the other one is arranged at the other end away from the embedded ring 23. The two convex rings 20 close to the embedded ring 23 prevent the gas in the socket mounting seat 4 from leaking during the sealing test, and the other convex ring 20 prevents the liquid outside from entering the socket mounting seat 4 during cleaning. Optionally, the compression rate of the two convex rings 20 close to the embedded ring 23 is greater than that of the other convex ring 20, because the two convex rings 20 close to the embedded ring 23 prevent the gas from leaking under the condition of increased gas pressure, and the gas itself has a certain compression effect on the two convex rings 20, and the convex ring 20 away from the embedded ring 23 is sealed under the condition of normal water pressure.

[0058] Reference Figure 8 and in combination Figure 3 The leak detection assembly 6 comprises a leak detection connector 60, an axial hole is formed along the axial direction of the leak detection connector 60 and penetrates the end faces of both ends of the leak detection connector 60, and the upper section of the axial hole is contracted. The plug comprises a top rod 61, a spring 62 and a first sealing ring 63, and the top rod 61, the spring 62 and the first sealing ring 63 are arranged in the axial hole. Specifically, the spring 62 is sleeved on the outer wall of the top rod 61, the top rod 61 can move up and down in the inside of the leak detection connector 60, the upper part of the top rod 61 has a convex block protruding radially from itself, the convex block can be in contact with the side wall surface of the contraction section of the axial hole of the leak detection connector 60, and the first sealing ring 63 is arranged on the convex block of the top rod 61, and the first sealing ring 63 seals the lower part and the upper part of the convex block. When the top rod 61 moves downward, the first sealing ring 63 is separated from the side wall surface of the contraction section of the axial hole of the leak detection connector 60, and the external gas enters the inside of the leak detection connector 60 and the socket mounting seat 4 from the contraction section of the axial hole. When there is no gas filled from the outside, the spring 62 rebounds to drive the top rod 61 to reset, and the first sealing ring 63 reseals the side wall surface of the contraction section of the axial hole of the leak detection connector 60. The up and down movement of the top rod 61 realizes the function of sealing the leak detection connector 60 and connecting the external gas.

[0059] The outer wall of the leak detection connecting nozzle 60 is provided with an outer step, the inner wall of the leak detection connecting nozzle 60 is provided with an inner thread, the lower end of the leak detection connecting nozzle 60 passes through the through hole of the cover of the waterproof cap 1 and the outer step is abutted on the cover surface of the waterproof cap 1, the lower end of the leak detection connecting nozzle 60 passing through the through hole is threadedly connected with the fastener 5, the fastener 5 can be a compression nut, the compression nut simultaneously compresses the inlaid part 32 of the inner support 3 and the waterproof cap 1 on the outer step of the leak detection connecting nozzle 60, and the force receiving part 33 of the inner support 3 compresses the sealing element 2 in the inner wall of the waterproof cap 1, so that the inner support 3, the waterproof cap 1, the sealing element 2, the leak detection connecting nozzle 60 and the spring 62 are simultaneously fixed by the compression nut, and the structure is more simple and the installation operation is convenient.

[0060] Optionally, the outer step of the leak detection connecting nozzle 60 and the cover abutting end surface of the waterproof cap 1 are provided with a second sealing ring 64, so as to realize sealing of the upper side of the waterproof cap 1.

[0061] Of course, the compression nut is provided with a ventilation hole for communicating the inside of the leak detection connecting nozzle 60 with the inside of the socket mounting seat 4.

[0062] When the sealing test of the endoscope is performed, the gas-tight leak detection equipment outside is connected through the leak detection connecting nozzle 60. Figure 9 With Figure 10 In order to further strengthen the sealing performance of the waterproof cap 1, a reinforcing sealing ring groove 11 along the circumferential direction of the waterproof cap 1 is arranged at the lower part of the inner side wall of the waterproof cap 1, and a reinforcing sealing ring 111 is arranged in the reinforcing sealing ring groove 11, so as to improve the sealing performance of the one side of the socket mounting seat 4 as a supplementary sealing of the sealing element 2.

[0063] In order to facilitate the rotation of the waterproof cap 1 by the operator during use, the waterproof cap 1 is further provided with a rotating handle part 12, and the rotating handle part 12 protrudes from the circumferential wall surface of the waterproof cap 1, so as to provide a force point.

[0064] In order to increase the friction force when holding the waterproof cap 1 and prevent slipping during rotation, the outer side wall of the waterproof cap 1 is further provided with an anti-skid protrusion 13, and the number of the rotating handle parts 12 is two, and the two rotating handle parts 12 are arranged on opposite sides of the waterproof cap 1, so that the operator can save labor during rotation, and the anti-skid protrusion 13 is located between the rotating handle parts 12.

[0065] The waterproof cap assembly of the embodiment of the utility model has good sealing performance, simple structure and convenient assembly.

[0066] Reference Figure 11 With Figure 12The embodiment of the utility model provides a kind of endoscope, the endoscope includes waterproof cap assembly and handle shell 7, handle shell 7 is connected with socket mounting seat 4, the endoscope has the overall function of waterproof cap assembly.

[0067] The above is only the specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered within the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A waterproof cap assembly, characterized in that, include: Waterproof cap (1); A sealing element (2) is disposed inside the waterproof cap (1) and is in contact with the inner wall of the waterproof cap (1); An inner support (3) is housed in the waterproof cap (1). The inner support (3) is connected to the waterproof cap (1) and the sealing element (2) respectively. The inner support (3) is used to press the sealing element (2) and make the sealing element (2) and the waterproof cap (1) seal together. Leak detection component (6) is provided with a shaft hole and a plug. The leak detection component (6) is disposed on the waterproof cap (1). The shaft hole communicates with the interior of the waterproof cap (1). The plug is at least partially accommodated in the shaft hole and is movable within the shaft hole.

2. The waterproof cap assembly according to claim 1, characterized in that, The inner support (3) is also connected to a positioning locking member (30), which is used to connect to the endoscope socket mounting base (4).

3. The waterproof cap assembly according to claim 2, characterized in that, The sealing element (2) is provided with a raised ring (20), which is used to seal with the socket mounting base (4) when the positioning locking element (30) is locked with the socket mounting base (4).

4. The waterproof cap assembly according to claim 2, characterized in that, The socket mounting base (4) is provided with a positioning hole (40) and a locking groove (41). The positioning hole (40) is opened along the axial direction of the socket mounting base (4), and the locking groove (41) is opened along the circumferential direction of the socket mounting base (4). The positioning hole (40) and the locking groove (41) are connected. The positioning locking member (30) can be inserted into the locking groove (41) through the positioning hole (40).

5. The waterproof cap assembly according to claim 1, characterized in that, The leak detection assembly (6) includes a leak detection connector (60), and the plug includes a push rod (61), a spring (62), and a first sealing ring (63). The shaft hole is opened in the leak detection connector (60), the push rod (61) is at least partially accommodated in the shaft hole, the first sealing ring (63) is disposed on the push rod (61), the spring (62) is connected to the push rod (61), and the spring (62) is used to drive the push rod (61) to move and cause the first sealing ring (63) to seal the shaft hole.

6. The waterproof cap assembly according to claim 1, characterized in that, The sealing element (2) has multiple vertical grooves (21) on its outer circumferential sidewall, and the waterproof cap (1) has multiple protruding ribs (10) on its inner sidewall. The multiple protruding ribs (10) correspond to the multiple vertical grooves (21) respectively, and the multiple protruding ribs (10) can be inserted into the multiple vertical grooves (21) respectively.

7. The waterproof cap assembly according to claim 1, characterized in that, The inner wall of the waterproof cap (1) is also provided with a reinforcing sealing ring groove (11), and a reinforcing sealing ring (111) is installed in the reinforcing sealing ring groove (11).

8. The waterproof cap assembly according to claim 1, characterized in that, The waterproof cap (1) has a rotating handle (12) and an anti-slip protrusion (13), both of which are located on the circumferential outer wall of the waterproof cap (1).

9. The waterproof cap assembly according to any one of claims 1 to 8, characterized in that, Both the waterproof cap (1) and the inner bracket (3) are provided with a stop (31), which is used to connect with the stop surface of the leak detection component (6).

10. An endoscope, characterized in that, include: The waterproof cap assembly as described in any one of claims 1 to 9.

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