JP2009273790A - Connector for endoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for endoscope in which moisture adhering to a space between a main body having a connection port and a rotating ring or the like disposed on an outer side of the main body does not enter into the connector and which ensures prevention of corrosion of an electrical connection members. <P>SOLUTION: The connector 15 mounts a waterproof cap 16 on a connection port 20a for the connector having electrical connection member (pin 23) disposed therein in which an O ring 29 providing waterproof characteristics by making close contact with an inner periphery of the connection port 20a and a second seal member 32 providing waterproof characteristics by making close contact with a front face of the rotating ring 21 used for fixing a connector receiving part disposed on an outer periphery of the connection port 20a are provided at the waterproof cap 16. The second seal member 32 has a size which does not exceed the outer periphery of the rotating ring 21 (connector) due to being formed in a bell shape having a flared section 32b. A third seal member (O ring 37, V ring or oil seal) maintaining a watertight condition is provided between the rear end of the rotating ring 21 and the rear member 20(R) of the main body of the connector. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an endoscope connector for connecting an endoscope to a processor device or the like, and more particularly to a configuration for preventing corrosion or the like of an electrical contact member using a waterproof cap.

  FIG. 9 shows a configuration of a conventional endoscope connector (electrical connector). FIG. 9 shows a state in which a waterproof cap 2 is attached to the connector 1. The connector 1 has a structure in which a rotation (operation) ring 4 is attached to the outer periphery of the main body 3 so as to be rotated by a predetermined angle, and a plurality of pins (electrical contact members) 5 are provided inside the connection port 3a of the main body 3. Is placed. On the other hand, the waterproof cap 2 includes an inner cylindrical portion 6 and an outer cylindrical portion 7, and an O-ring 8 that is in close contact with the inner periphery of the connection port 3 a is attached to the outer peripheral groove 6 e of the inner cylindrical portion 6.

  In addition, in this type of endoscope connector, for example, a bayonet type is adopted as a method of fixing the connection to the connector receiver on the processor device side, and this bayonet structure is also used for connection and fixing to the waterproof cap 2. Connection is made. For example, engaging claws 9 are provided at two or three locations on the outer periphery of the outer cylindrical portion 7, and the engaging claws 9 are engaged and arranged in cam grooves formed on the inner periphery of the rotating ring 4. It is supposed to be configured. According to this, the waterproof cap 2 can be connected and fixed to the connector 1 by engaging the engaging claw 9 with the cam groove of the rotating ring 4 and rotating the waterproof cap 2 by a predetermined angle.

FIG. 10 shows the configuration of the connector 1 and the connector receiving portion on the processor device 10 side. The connector receiver (receptacle) 11 of the processor device 10 has an engaging claw 9 on the waterproof cap 2 side and Similar engaging claws 12 are provided. Therefore, in the conventional connector 1, for example, the connector receiver 11 is placed in the rotating ring 4 while aligning the mark (index) M ₁ provided on the outer periphery of the rotating ring 4 with the mark M ₂ on the processor device 10 side. After inserting and engaging the cam groove with the engaging claw 12, if the rotating ring 4 is rotated to the position of the mark M ₃ , the connector main body 3 (its connection port 3 a) moves to the front side to the connector receiver 11. Connection is fixed. When the connector 1 is removed from the connector receiver 11, the rotating ring 4 returns to the original reference position by the biasing force of the spring.

According to such an endoscope connector, when the waterproof cap 2 is attached to the connector 1 removed from the connector receiver 11, the O-ring 8 of the waterproof cap 2 comes into close contact with the inner peripheral surface of the connection port 3a. The interior of the connector 1 having the pins 5 that are electrical contacts is maintained in a watertight state, and can be waterproofed. The endoscope (scope) is cleaned and sterilized by an autoclave or the like while the connector 1 is waterproofed.
JP-A-6-133919 JP 2000-340290 A JP 2005-278944 A

  By the way, in the conventional endoscope connector described with reference to FIG. 9, the O-ring 8 of the cap 2 is in close contact with the inner peripheral surface of the connection port 3a. Since the ring 4 is provided, when moisture enters and adheres to the gap between the rotating ring 4 and the main body 3, when the waterproof cap 2 is removed from the connector 1, the moisture attached (or accumulated) to the gap is removed. In some cases, the pin 5 hangs down and enters the connection port 3a. Then, if the connector 1 into which the moisture has entered is connected to the connector receiver 11, the inside of the connector receiver 11 will also be wetted with the moisture, whereby not only the pins 5 in the connector 1 but also the connector receiver 11 Electrical contacts can also corrode.

  In addition, there is a case where the rotary ring 4 is not disposed and a simple exterior body that does not rotate is provided at the position of the rotary ring 4 on the outer peripheral side of the connection port 3a. If there is a gap, moisture adheres to the gap and the same disadvantages as described above occur.

  Conventionally, there are Patent Documents 1 and 2 described above for removing moisture that has entered the connector. In Patent Document 1, a sponge is disposed in a plug of an endoscope apparatus, and the plug is fitted into a socket. A structure is disclosed in which when adhering, moisture adhering to the plug is absorbed by the sponge to prevent the electrical contacts in the plug from getting wet. Further, in the cited document 2, the connector is provided with a moisture removal cover provided with a hole through which the electrical contact member comes into close contact with the liquid, and the moisture attached to the vicinity of the electrical contact member by moving the moisture removal cover. A configuration is shown for removing.

  However, in the case of the above-mentioned Patent Document 1, if the amount of water absorbed by the sponge exceeds the allowable amount, water may enter and the electrical contacts may be corroded. Since it is necessary to operate the moisture removal cover, if the removal operation is forgotten, the moisture cannot be completely removed, and the possibility of corrosion of the electrical contact member remains.

  Furthermore, there is Patent Document 3 as a connector for sealing a connector. This Patent Document 3 connects the connectors arranged at both ends of the relay cable with sealing performance, thereby connecting the electrical contact portion in the connector. It is to be sealed. However, even in this Patent Document 3, as in the conventional example described above, when the connection between the connectors is released, the water adhering to the connection part may fall into each connector and corrode the electrical contact part. is there.

  The present invention has been made in view of the above problems, and its purpose is to remove moisture adhered between a main body having a connection port and a rotating ring or an exterior body disposed outside the main body when the waterproof cap is removed. It is an object of the present invention to provide an endoscope connector that can reliably prevent corrosion of an electrical contact member without entering the connector.

In order to achieve the above object, an invention according to claim 1 includes a connector connection port in which an electrical contact member is disposed, and an outer member disposed on the outer periphery of the connection port. In the endoscope connector to be attached, the waterproof cap is provided with a first seal member that is in close contact with the inner peripheral surface of the connection port and waterproof, and is in close contact with the front surface (front end surface) of the outer member. A second seal member is provided to perform the above.
According to a second aspect of the present invention, the outer member includes a rotating ring that is rotatably disposed on the outer peripheral side of the connection port and is rotated to fix the connector to the connector receiver. A third seal member that maintains a watertight state is provided between the side and the connector main body, and the second seal member of the waterproof cap is disposed in close contact with the front surface of the rotating ring.
The invention according to claim 3 is provided with a forward fixing mechanism (bayonet type or screwed type) for connecting and fixing the waterproof cap to the connector while moving the waterproof cap forward when the waterproof cap is attached to the connector, The second seal member is pressed against the front surface of the connector outer member by the advance operation of the advance fixing mechanism.

  According to the configuration of the present invention, the first seal member that is in close contact with the inner peripheral surface of the connection port of the connector prevents moisture from entering the connection port, and the first seal member that is in close contact with the front surface of the connection port outer member (for example, the exterior body). The two seal members prevent moisture from adhering (or storing) in a gap between the outer member and the connector body, and prevent the electrical contact member in the connection port from getting wet with moisture.

According to the configuration of claim 2, the second seal member that is in close contact with the front surface or the like of the rotating ring prevents moisture from entering from the front side between the rotating ring and the connector body, and the rear end of the rotating ring. The third seal member disposed between the side and the connector body prevents moisture from entering between them from the rear side, and moisture does not adhere (or accumulate) between the rotating ring and the connector body. It becomes like this.
According to the configuration of the third aspect, the second seal member is firmly pressed against the front surface of the connector outer member by the advance operation of the advance fixing mechanism using, for example, a bayonet type or screw screw type fixing mechanism.

  According to the endoscope connector of the present invention, moisture adhering between a main body having a connection port and a member such as a rotating ring or an exterior body arranged outside the main body enters the connector when the waterproof cap is removed. There is an effect that corrosion of the electric contact member can be surely prevented without entering.

  FIGS. 1 to 6 show the configuration of an endoscope connector according to the first embodiment. In the first embodiment, as shown in FIGS. 1 and 2, the connector 15 has a waterproof cap. 16 is attached. The waterproof cap 16 is connected to the cable side of the connector 15 by a string-like body 17, and a ring-like (or other hook-like) locking member 18 is provided at the connector-side base of the string-like body 17. The connector 15 can be locked to another member, such as an optical connector portion, by the locking member 18. That is, the connector 15 as an electrical connector is provided on the endoscope side and is connected to a signal processing circuit unit such as a processor device. For example, the connector 15 is branched from the light source connector of the endoscope connected to the light source unit. It is provided at the end of the cable (for example, Japanese Patent Application Laid-Open No. 2005-261837), and it is difficult to store it when not in use. Therefore, in the first embodiment, the connector 15 is locked to a member such as an optical connector by using the locking member 18 so that it can be easily stored.

  The connector 15 employs, for example, a bayonet type (advance fixing mechanism) as a connection fixing method for the connector receiver on the processor device side and the waterproof cap 16, and the outer periphery of the main body 20 is used for this bayonet type connection. A rotating (operation) ring 21 is rotatably arranged, and a spring biasing force is applied to the rotating ring 21 from the main body 20 side so as to return to a reference position (position before mounting). As described with reference to FIG. 10, the inner surface of the rotating ring 21 is engaged with two or three engaging claws 12 provided on a connector receiver (receptacle) 11 of the processor device 10. 2 or 3 cam grooves (grooves in an oblique direction) 22 are formed.

With such a rotary ring 21, in FIG. 10 to the engaging claw 12 of the connector receiving 11 engaged with the cam groove 22C, the position of the mark M ₂ against the spring bias of a predetermined the position of M ₃ The connector 15 can be connected to the connector receiver 11 by rotating the angle. The connector 15 can be removed from the connector receiver 11 by rotating the rotating ring 21 in the opposite direction. At this time, the rotary ring 21 is adapted to be held always reference position is the position of the mark M ₁ by the spring bias, connection and positioning of the connector 15 is devised so as to facilitate .

  A connection port 20a exists on the front side of the main body 20 of the connector 15, and a plurality of connector pins (electrical contact members) 23 are arranged inside the connection port 20a. The main body 20 is divided into a front member 20 (F) on which the pin 23 is disposed and a rear member 20 (R) to which the base of the string-like body 17 is attached. The watertight state is maintained.

  On the other hand, the waterproof cap 16 includes an inner cylindrical portion 26, an A outer cylindrical portion 27, and a B outer cylindrical portion 28. All these members are made of a synthetic resin material (plastic) without using metal. ing. Then, an O-ring as a first seal member that is in close contact with the inner periphery of the connection port 20a in the outer periphery of the inner cylindrical portion 26, that is, the groove 26e formed in the outer periphery of the portion inserted inside the connector connection port 20a. 29 is attached.

  As described above, in the embodiment, a bayonet-type fixing mechanism is employed, and the engaging claws 30 are provided at several positions (for example, three positions) on the outer periphery (connection side) of the A outer cylindrical portion 27. The engaging claw 30 is configured to engage with the cam groove 22C of the cylindrical member 22 inside the rotating ring 21. That is, the cylindrical member 22 is assembled so as to be integrated with the rotating ring 21, and a cam groove 22 </ b> C as shown in FIG. 3 is formed on the inner periphery of the cylindrical member 22. According to this, the engaging claw 30 is engaged with each of the cam grooves 22 </ b> C of the cylindrical member 22 of the rotating ring 21, and the waterproof cap 16 is rotated by a predetermined angle to be pushed in, whereby the entire waterproof cap 16 is advanced. It is possible to connect and fix to the connector 15.

  In the bayonet-type fixing mechanism, the cam groove 22C and the engaging claw 30 may be disposed in the reverse direction so that the cam groove 22C is disposed on the waterproof cap 16 side and the engaging claw 30 is disposed on the connector 15 side. Good. Further, as the forward fixing mechanism, a screw screw type fixing mechanism can also be adopted. For example, a male screw part is provided on the outer periphery of the A outer cylindrical part 27 of the waterproof cap 16 and a female screw part is provided on the inner side of the cylindrical member 22 of the connector 16. You may make it provide.

  In the first embodiment, the second seal member 32 having a divergent shape that is in close contact with the front surface of the rotating ring 21 is attached to the waterproof cap 16. The second seal member 32 is formed of an elastic rubber member, and as shown in FIG. 4, has a cylindrical base portion 32a and a divergent portion 32b whose tip side extends from the base portion 32a in a trumpet shape (or an umbrella shape). The divergent portion 32b is formed so that its thickness decreases toward the tip end side, and the tip (diameter) of the divergent portion 32b expands (expands the contact area) and is pressed against the front surface of the rotating ring 21. Will be in close contact.

  Further, as shown in FIG. 4B, the outer diameter of the divergent portion 32b of the second seal member 32 is set to a size that does not exceed the outer diameter of the rotary ring 21, that is, the connector 15. . That is, the maximum outer diameter of the second seal member 32 is less than or equal to the outer diameter of the rotating ring 21 (or the connector 15) in a state where the tip of the divergent portion 32b is in close contact with the front surface of the rotating ring 21 and a sealing effect is obtained. Set to In this way, in the first embodiment, even when the waterproof cap 16 is attached, the outer periphery of the connector 15 is not increased by the seal portion.

  5A and 5B show a state before and after the waterproof cap 16 is attached and assembled. The waterproof cap 16 of the first embodiment can be manufactured only by press-fitting. That is, a plurality of stepped portions are formed on the rear side (the left side in the figure) of the inner cylindrical portion 26, and stepped portions are formed on the inner and outer circumferences on the rear side of the A outer cylindrical portion 27. Inside the portion 28, a first inner peripheral portion 28a, a second inner peripheral portion 28b, and a third inner peripheral portion 28c are formed so that the inner diameter becomes smaller toward the rear side, and the inner cylindrical portion 26 is formed. The front surface 26 a of the outer peripheral step portion and the rear surface 27 a of the inner peripheral step portion of the A outer cylindrical portion 27 abut.

  Further, the front surface 27c of the outer peripheral step portion 27b of the A outer cylindrical portion 27 abuts on the rear wall surface (radial surface) of the second inner peripheral portion 28b of the B outer cylindrical portion 28, so that the first inner peripheral portion 28a Between the inner peripheral surface and the outer peripheral surface of the outer peripheral stepped portion 27b of the A outer cylindrical portion 27, a space for placing and sandwiching the cylindrical base portion 32a of the second seal member 32 is formed. . Further, an annular projection 34 is formed on the outer periphery of the step portion of the inner cylindrical portion 26, and the third inner peripheral portion is disposed on the rear side of the third inner peripheral portion 28c in order to lock the projection 34. A fourth inner peripheral portion 28d having an inner diameter larger than 28c is provided, and an O-ring 35 is disposed on the fourth inner peripheral portion 28d.

  Therefore, according to the above configuration, as shown in FIG. 5B, the second seal is attached to the first inner peripheral portion 28a of the B outer cylindrical portion 28 while the O-ring 35 is attached to the fourth inner peripheral portion 28d. When the member base portion 32a is arranged, the A outer cylindrical portion 27 and the inner cylindrical portion 26 are attached in order, and the inner cylindrical portion 26 is pushed in (press-fit), the protrusion 34 is locked to the fourth inner peripheral portion 28d, The second seal member 32 is attached so as to be sandwiched between the first inner peripheral portion 28 a of the B outer cylindrical portion 28 and the outer peripheral step portion 27 b of the A outer cylindrical portion 27. Note that the inner cylindrical portion 26 may have the role of the A outer cylindrical portion 27, and the A outer cylindrical portion 27 may be eliminated.

  In the first embodiment, as shown in FIG. 1, a seal member is also provided on the rear side (right side in the drawing) of the rotating ring 21. That is, an annular groove 20e is provided on the outer peripheral surface on the front end side of the rear member 20 (R) of the main body 20, and an O-ring 37 (FIG. 6) as a third seal member is attached to the groove 20e. Is brought into close contact with the inner surface of the rear side of the rotating ring 21. At this time, as shown in FIG. 6, by setting the interference by the O-ring 37 (the length in the radial direction of the cross-sectional circle crushed by the close contact) in a range of 0.05 to 0.1 mm, the watertight state is set. The rotation operation of the rotating ring 21 is not affected while maintaining it.

  The first embodiment is configured as described above. From the state shown in FIG. 2, the engaging claw 30 of the waterproof cap 16 is engaged with the cam groove 22C on the inner periphery of the rotating ring 21 (cylindrical member 22). When rotated by a predetermined angle, the waterproof cap 16 moves forward (withdrawn into the connector 15), and is attached to the connector 15 and disposed on the outer periphery of the inner cylindrical portion 26 as shown in FIG. The O-ring (first seal member) 29 brings the inside of the connection port 20a of the connector 15 into a watertight state.

  At the same time, in conjunction with the forward movement of the waterproof cap 16, the divergent portion 32b of the second seal member 32 is pressed against the front surface of the rotating ring 21 while being slightly expanded. That is, since the engaging claw 30 of the waterproof cap 16 is engaged with the cam groove 22C of the rotating ring 21 as described above, the rotating waterproof cap 16 is pressed against the connector 15 side by the cam action ( 1, the second seal member 32 and the front surface of the rotating ring 21 are securely adhered to each other, and the front side of the connector 15 is connected between the rotating ring 21 and the main body 20. Infiltration of moisture is prevented. Further, on the rear side (cable side) of the connector 15, the O-ring 37, which is a third seal member disposed on the outer periphery of the main body 20 (R), is in close contact with the inner peripheral surface of the rotating ring 21. Intrusion of moisture between the rotating ring 21 and the main body 20 from the rear side is prevented, and as a result, a watertight state between the rotating ring 21 and the main body 20 is ensured.

  In this way, in the first embodiment, not only the portion of the connector connection port 20a is sealed, but also the space between the rotating ring 21 and the main body 20 is sealed. By eliminating the adhesion or accumulation of moisture in the connector, corrosion of the connector pin 23 and its peripheral portion can be satisfactorily prevented, and as a result, corrosion of the electrical contact member on the connector receiving side can also be prevented. In the first embodiment, the interference of the O-ring 37 serving as the third seal member is set in a range of 0.05 to 0.1 mm, thereby ensuring a good rotational operation of the rotating ring 21. ing.

In the connector 15 according to the embodiment, as described with reference to FIG. 10, the mark M ₁ provided on the outer periphery of the rotating ring 21 is aligned with the mark M ₂ on the processor device side, and the connector is placed in the rotating ring 21. receiving 11 insert the is rotated to the position of the connecting position mark M ₃ the rotating ring 21 while engaging the cam groove 22C claws 12, the connector body 20 (the connecting port 20a) is moved to the front side It is connected and fixed to the connector receiver 11. On the other hand, when the connector 15 is removed from the connector receiver 11, the rotating ring 21 returns to the original reference position by the biasing force of the spring. Due to such a structure, conventionally, moisture has entered between the rotating ring 21 and the main body 20. However, according to the waterproof cap 16 of the embodiment, the inside of the rotating ring 21 is inward. Infiltration of moisture is prevented. Further, the intrusion of moisture at this portion prevents the influence of the spring biasing force mechanism for returning the rotating ring 21, and there is an advantage that the spring biasing force can be prevented from being lowered.

  In the first embodiment, the case where the rotating ring 21 is rotatably provided on the outer periphery of the main body 20 has been described. However, a simple exterior body may be provided in a fixed state instead of the rotating ring 21. Yes, in this case, the rear side of the exterior body is fixed in a watertight manner to the main body rear side member 20 (R), so that the second seal member 32 is disposed in close contact with the front surface of the exterior body, It is possible to prevent moisture from entering and adhering to the gap between the main body 20.

  Further, in the first embodiment, the divergent portion 32b of the second seal member 32 has a divergent shape in which the tip side expands in a trumpet shape, and the outer diameter of the divergent portion 32b is the outer diameter of the rotating ring 21 (connector 15). Since the size does not exceed, even when the waterproof cap 16 is attached, the outer periphery of the connector 15 is not enlarged by the seal portion, and it becomes easy to handle in the endoscope (scope) cleaning, disinfection, sterilization by autoclave, etc. There is an advantage that it can be accommodated in a washing machine or the like without difficulty. In addition, the waterproof cap itself and the connector fitted with the waterproof cap become slender, and it looks smart.

  Further, as described above, in the first embodiment, the waterproof cap 16 is made of a synthetic resin member and a rubber member without using a metal, and the B outer cylindrical portion 28 in which the second seal member 32 is disposed is used. On the other hand, since the second seal member 32 is attached by simply press-fitting the inner cylindrical portion 26 via the A outer cylindrical portion 27 without using an adhesive or a fixing screw, the waterproof cap can be easily manufactured. In addition, there is an advantage that corrosion of the metal portion of the waterproof cap and deterioration of the adhesive due to cleaning and sterilization can be suppressed. That is, in sterilization such as cleaning, disinfection, or autoclave, the endoscope is exposed to strong acidic water and placed in a hot and humid state, so that metals such as screws are corroded and the adhesive effect of the adhesive is lost. However, although the waterproof cap is damaged, such an inconvenience is avoided in the embodiment.

  FIG. 7 shows the configuration of the second embodiment. This second embodiment uses a V-ring as the third seal member. That is, the rear end of the annular protrusion (or an annular stepped portion having a smaller inner diameter) 40 that protrudes inwardly at the inner periphery of the rear end of the rotary ring 21 and the front end side of the outer periphery of the front end of the main body rear member 20 (R). A V-ring 42 is disposed in a space formed between the stepped portion 41 whose outer diameter decreases toward the surface, and is attached so that the front end surface of the V-ring 42 is in close contact with the rear end surface of the annular convex portion 40. . Similarly to the O-ring 37, such a V-ring 42 does not allow moisture to enter between the rotary ring 21 and the main body 20 from the rear side of the connector 15, and is compatible with the second seal member 32 on the front side. Thus, the space between the rotating ring 21 and the main body 20 can be maintained in a watertight state.

  FIG. 8 shows the configuration of the third embodiment. In the third embodiment, an oil seal is used as the third seal member. That is, an annular stepped portion 44 whose inner diameter decreases toward the front end side on the inner periphery of the rear end of the rotating ring 21, and a stepped portion 45 whose outer diameter decreases toward the front end side on the outer periphery of the rear end of the rear body 20 (R). The oil seal 46 is disposed in the space formed by the above-described components, and the oil seal 46 inner peripheral piece is attached so as to be in close contact with the outer peripheral surface of the stepped portion 45. Even with such an oil seal 46, like the O-ring 37 and the V-ring 42, in combination with the second seal member 32 on the front side, the space between the rotating ring 21 and the main body 20 is maintained in a watertight state. Can do. Also in the case of the second and third embodiments described above, by setting the interference between the V ring 42 and the oil seal 46 in the range of 0.05 to 0.1 mm, a satisfactory rotating operation of the rotating ring 21 is ensured. Is done.

It is a partial cross section figure which shows the structure of the connector for endoscopes (state which attached the waterproof cap) which concerns on 1st Example of this invention. It is a partial cross section figure which shows the structure of the connector for endoscopes (state which removed the waterproof cap) of 1st Example of this invention. It is an expanded view of the cylindrical member which shows the structure of the cam groove of an Example. It is sectional drawing which shows the structure of the 2nd seal member of an Example. The attachment structure of the 2nd seal member of an Example is shown, A figure (A) is an exploded view of each member before attachment, and a figure (B) is a figure after an assembly | attachment. It is a figure which shows the structure of the O-ring of an Example. It is a partial cross section figure which shows the structure of the connector for endoscopes of 2nd Example. It is a partial cross section figure which shows the structure of the connector for endoscopes of 3rd Example. It is a partial cross section figure which shows the example of 1 structure of the connector for conventional endoscopes. The structure of the connector for endoscopes and the connector receiving part of a processor apparatus is shown, (A) is a top view, FIG. (B) is a front view of a processor apparatus.

Explanation of symbols

1,15 ... Connector, 2,16 ... Waterproof cap,
3, 20 ... main body, 4, 21 ... rotating ring,
3a, 20a ... connection port, 20e, 26e ... groove,
20 (R): rear body member, 22C: cam groove,
24, 35 ... O-ring, 26 ... Inner cylindrical part,
27 ... A outer cylindrical portion, 28 ... B outer cylindrical portion,
28a-28d ... 1st-4th inner peripheral part,
29 ... O-ring (first seal member), 30 ... engaging claw,
32 ... second seal member, 32a ... base,
32b ... Suehiro, 37 ... O-ring (third seal member),
40 ... convex part, 41, 44, 45 ... step part,
42 ... V ring (third seal member),
46. Oil seal (third seal member).

Claims (3)

In an endoscope connector to which a waterproof cap is attached, having a connection port of a connector in which an electrical contact member is disposed, and an outer member disposed on the outer periphery of the connection port.
The waterproof cap is provided with a first seal member that is in close contact with the inner peripheral surface of the connection port for waterproofing, and a second seal member that is in close contact with the front surface of the outer member for waterproofing is provided. Endoscope connector. As the outer member, a rotating ring that is rotatably arranged on the outer peripheral side of the connection port and is rotated to fix the connector to the connector receiver,
A third seal member that maintains a watertight state is provided between the rear end side of the rotating ring and the connector body, and the second seal member of the waterproof cap is disposed in close contact with the front surface of the rotating ring. The endoscope connector according to claim 1.   When the waterproof cap is attached to the connector, a forward fixing mechanism for connecting and fixing the waterproof cap to the connector while moving the waterproof cap to the front side is provided, and the second seal member is attached to the connector by the forward operation of the forward fixing mechanism. The endoscope connector according to claim 1, wherein the endoscope connector is pressed against a front surface of the outer member.

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