CN107355619B

CN107355619B - Connector, endoscope send water system and endoscope

Info

Publication number: CN107355619B
Application number: CN201710676028.0A
Authority: CN
Inventors: 吴道民
Original assignee: Shanghai Aohua Photoelectricity Endoscope Co Ltd
Current assignee: Shanghai Aohua endoscopy Co., Ltd
Priority date: 2017-08-09
Filing date: 2017-08-09
Publication date: 2020-07-03
Anticipated expiration: 2037-08-09
Also published as: CN107355619A

Abstract

The invention discloses a connector, an endoscope water supply system and an endoscope, wherein the connector in the scheme mainly comprises a first connector and a second connector, a movable fluid channel assembly is arranged in the first connector, the fluid channel assembly is matched with a fluid channel in the second connector to form a closed channel when the first connector and the second connector are connected with each other, in addition, a first sealing structure and a second sealing structure are arranged on the fluid channel assembly, and the first sealing structure limits the flow of fluid in a gap between the fluid channel assembly and the first connector; and the second sealing structure controls the state of the fluid flowing into the fluid passage assembly according to the connection state of the first connector and the second connector. The endoscope that forms in view of the above sends the water scheme and effectively avoids the problem that inside water flows out when the endoscope plug is pulled out through double seal structure. Meanwhile, the inside of the water feeding structure is sealed, so that corrosion to internal components is avoided, and the reliability of the scheme is ensured.

Description

Connector, endoscope send water system and endoscope

Technical Field

The invention relates to an endoscope, in particular to a water supply scheme in the endoscope.

Background

In the endoscopic diagnosis and treatment, when foreign matter (e.g., body fluid) adheres to the observation window, which leads to deterioration of the observation field and consequently makes it impossible to perform reliable diagnosis and treatment, it is necessary to spray water to the window through a nozzle provided at the tip end of the endoscope to remove the foreign matter. In order to realize the water supply function, a water supply channel is arranged in the endoscope body, the water supply channel is communicated to the endoscope plug, an opening is arranged on the plug, and the opening is connected to the water bottle through a water pipe.

After diagnosis and treatment are finished, the water pipe connected with the water bottle needs to be pulled out from the opening of the endoscope plug, and at the moment, partial water still flows out from the pipe orifice of the water pipe due to the change of air pressure in the water supply device, so that great inconvenience is brought to workers.

Publication number CN105212881A discloses a solution of an endoscope water supply system, which is used for solving the problem of running water when an endoscope plug is unplugged. The scheme of the endoscope water supply system adopts a joint structure capable of preventing fluid in a pipeline from overflowing, the joint structure comprises a male joint and a female joint, the male joint and the female joint can be connected with each other to form a closed passage, a self-sealing valve body is arranged in the female joint, when the male joint is connected with the female joint, the self-sealing valve body is opened, and when the male joint is separated from the female joint, the self-sealing valve body is closed. Meanwhile, the self-sealing valve body comprises a valve seat, a valve core and an elastic piece; the valve seat is provided with a hollow cavity capable of accommodating the valve core and the elastic element, the head end of the valve seat is provided with an opening, the male connector can enter the valve seat through the opening and is in closed fit with the valve seat, the tail end of the valve seat is of a structure with a part of openings and is matched with a channel connected with the female connector, and steps are arranged on the inner circumference of the valve seat; the valve core can move transversely relative to the valve seat, the valve core comprises a hollow cylinder with a closed base, the base forms a convex edge abutted with the step, and the convex edge is in non-sealing fit with the inner wall of the valve seat; the opening end of the cylinder faces the head end of the valve seat, and the bottom of the cylinder faces the tail end of the valve seat; the side wall of the cylinder body is provided with a through hole; a closed contact point is arranged between the valve core and the valve seat; one end of the elastic piece is abutted against the bottom of the base with certain tension, and the other end of the elastic piece is abutted against the tail end of the valve seat, so that the convex edge of the base is abutted against the step under the tension of the elastic piece; when the male joint is inserted into the female joint, the male joint can overcome the tension of the elastic piece to push the valve core to move towards the tail end of the female joint, and the sealing contact point is opened.

The scheme of the endoscope water supply system is based on the specific self-sealing valve body to prevent the fluid in the pipeline from overflowing, but the self-sealing valve body structure adopts a single sealing structure, so that the reliability is poor, and the fluid easily enters the self-sealing valve body to corrode the elastic piece in the actual use process. Moreover, when the male connector and the female connector are connected and matched in the scheme of the endoscope water supply system, locking cannot be performed only through simple nested clamping, the reliability is poor, the problem of falling off easily occurs in the using process, and the sealing effect of the self-sealing valve body can be influenced.

Disclosure of Invention

In view of the above problems with existing endoscope water delivery systems, a new endoscope water delivery system with high reliability is needed.

Therefore, the technical problem to be solved by the invention is to provide a connector, an endoscope water supply system and an endoscope, which can realize stable and reliable water supply of the endoscope system.

In order to solve the above technical problem, the present invention provides a connector including: the connector comprises a first connector and a second connector, wherein a movable fluid channel assembly is arranged in the first connector, and the fluid channel assembly is matched with a fluid channel in the second connector to form a closed channel when the first connector and the second connector are connected with each other; the fluid channel assembly having a first seal structure and a second seal structure thereon, the first seal structure restricting the flow of fluid in a gap between the fluid channel assembly and the first connector; the second sealing structure controls a state of fluid flow into the fluid passage assembly according to a connection state of the first connector and the second connector.

Further, the fluid channel assembly comprises a movable part and an elastic part, a step matched with the movable part is formed in the first connector, a fluid channel is formed in the movable part and embedded in the first connector through the elastic part, and the elastic part is matched with the step in the first connector to generate deformation energy to drive the movable part to move in the first connector along the axial direction; a first sealing structure and a second sealing structure are arranged on the movable component.

Further, the first sealing structure is composed of a first sealing ring, the first sealing structure is sleeved on the periphery of the movable part, and when the movable part is in an initial state, two ends of the first sealing ring are respectively abutted against the elastic part and the step; and can enter a gap between the movable part and the step after being deformed along with the movement of the movable part.

Further, the second sealing structure includes:

a flange formed at the trailing end of the movable member, the flange having a fluid opening therein communicating with the fluid passage in the movable member;

a second seal ring, which is sleeved on the periphery of the movable part and is abutted against the fluid opening on the flange;

and a drive structure formed on the step, the drive structure being in contact fit with the second seal ring to drive the fluid opening in the second seal ring sealing flange when the movable member returns to the initial state.

Furthermore, the driving structure is a conical surface formed on the step, the conical surface is formed at an opening of the tail end of the step corresponding to the second sealing ring on the movable component, and the diameter of the conical surface is gradually expanded from inside to outside along the axial direction.

Further, the second sealing structure includes:

an end surface formed on the step, the end surface directly abutting the fluid opening on the flange and sealing the fluid opening on the flange when the movable member is restored to the initial state.

Further, the connector further comprises a locking component, and the locking component locks the connection state of the first connector and the second connector when the first connector and the second connector are connected and matched.

Further, the locking member includes:

the sliding groove is arranged on the connecting end surface of the first connector along the radial direction of the first connector;

a slide member slidable in the slide groove;

and an end surface pressing member which adjusts the sliding of the sliding member in the sliding groove, and when the second connector is connected with the first connector, the sliding member is driven by the second connector to adjust so that the sliding member locks the connection state of the first connector and the second connector.

Furthermore, the sliding component comprises a sliding end face, a pressing face arranged on the sliding end face and a first pressing elastic piece matched with the pressing face;

the pressing surface is matched with the first pressing elastic piece to drive the sliding end surface to move in the sliding groove along the radial direction;

the sliding end face is provided with a locking opening, the locking opening comprises a locking hole and a multi-stage reducing adjusting hole which are communicated with each other, the locking hole is matched with the second connector, the second connector can penetrate through the first connector and be connected with the first connector, and the second connector can move along the radial direction to clamp the second connector and limit the second connector to move along the axial direction;

the multi-stage reducing adjusting hole is matched with the end face pressing part to adjust the state of the lock hole moving along the radial direction.

Furthermore, the end face pressing part comprises an end face pressing piece and a second pressing elastic piece, the end face pressing piece comprises an end cover and a multi-stage variable diameter adjusting part which is integrally extended from the end cover, and the end face pressing piece penetrates through the multi-stage variable diameter adjusting hole and is inserted into the first connector through the second pressing elastic piece; the end face pressing piece can move along the axial direction of the first connector under the action of the second pressing elastic piece, so that the multi-stage reducing adjusting portion on the end face pressing piece is matched with the multi-stage reducing adjusting hole, and the state of the locking hole moving along the radial direction is adjusted.

In order to solve the above technical problems, the present invention provides an endoscope water supply system including the above connector, a first connector of the connector being connected to a water supply device through a water supply pipe, and a second connector being connected to a water supply channel of an endoscope.

In order to solve the above-described problems, the present invention provides an endoscope including the above-described endoscope water supply system.

The endoscope that forms in view of the above sends the water scheme and effectively avoids the problem that inside water flows out when the endoscope plug is pulled out through double seal structure. Meanwhile, the inside of the water feeding structure is sealed, so that corrosion to internal components is avoided, and the reliability of the scheme is ensured.

Moreover, the scheme can also lock the use state, and the stability and the reliability of the use process are ensured.

Moreover, the scheme has the advantages of compact structure, stable reliability, convenient operation and strong practicability.

Drawings

The invention is further described below in conjunction with the appended drawings and the detailed description.

Fig. 1 is a schematic sectional view of a first connector and a second connector of the present invention when they are not connected.

Fig. 2 is a schematic sectional view of the first connector and the second connector of the present invention when they are connected.

Fig. 3 is a perspective view of a first connector of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.

The connector provided in the present invention is mainly formed by mating a first connector and a second connector as core components, and the first connector and the second connector are connectable to each other to form a closed passage communicating with each other inside the first connector and the second connector.

The first connector is internally provided with a movable fluid channel assembly, the fluid channel assembly is internally provided with a corresponding fluid channel, and when the first connector and the second connector are connected with each other, the fluid channel in the fluid channel assembly is matched with the fluid channel in the second connector to form a closed channel.

The fluid passage assembly in the present connector also has a first sealing structure and a second sealing structure thereon, the first sealing structure restricting the flow of fluid in the gap between the fluid passage assembly and the first connector; and the second sealing structure controls the state of the fluid flowing into the fluid passage assembly according to the connection state of the first connector and the second connector: controlling fluid flow into the fluid passage assembly when the first connector is connected with the second connector and a closed passage is formed inside; fluid is prevented from flowing into the fluid passage assembly when the first connector is disconnected from the second connector.

Accordingly, the connector can prevent fluid from flowing to the outer periphery of the fluid passage assembly to corrode internal components when the first connector is connected with the second connector, and prevent fluid from flowing to the fluid passage in the fluid passage assembly when the first connector is disconnected with the second connector, thereby achieving double sealing.

With respect to the above principle scheme, the following description is made in detail with reference to specific examples.

Referring to fig. 1 and 2, there are shown constituent structures of the connector provided in the present example.

As can be seen, the connector in this example is mainly formed by the first connector 100 and the second connector 200 being mated, wherein fig. 1 is a schematic cross-sectional view of the first connector 100 and the second connector 200 when they are not connected.

For convenience of description, the direction in which the first connector 100 and the second connector 200 are respectively directed toward the interconnection is referred to as a "head end" of the first connector 100 or the second connector 200, and the direction in which the first connector 100 and the second connector 200 are respectively directed away from the interconnection is referred to as a "tail end" of the first connector 100 or the second connector 200. The rear ends of the first connector 100 and the second connector 200 are each connected with a corresponding channel for the flow of gas, fluid, etc. The "head end" and "tail end" of the movable member are as defined above.

The first connector 100 is hollow, and the end of the head end is provided with a corresponding opening 160 for connecting and matching with the second connector 200; a corresponding annular step 110 is disposed on the inner wall of the first connector 100, so that three

cavities

111, 112 and 113 are formed inside the first connector 100 and sequentially distributed and communicated along the radial direction of the first connector 100.

The first connector 100 thus constructed accommodates the movable member 120, the elastic member 130, the first sealing member 140 and the second sealing member 150 therein.

The movable member 120 is generally T-shaped in axial cross section, and includes a cylindrical body 121 and an annular flange 122 disposed on a top side of the body, and the cylindrical body 121 is provided with a corresponding flow passage 123 along its axial direction inside, and is fittingly connected to the fluid passage in the second connector 200. The whole cylindrical body 121 is in clearance fit with the second cavity 112 in the first connector 100; and the annular flange 122 at the top end of the cylindrical body 121 mates with the first cavity 111 in the first connector 100.

The movable member 120 thus constructed is movably embedded in the first connector 100 by the corresponding elastic members 130, and the elastic members 130 are engaged with the steps 110 in the first connector, and can be deformed with the movement of the movable member 120 in the first connector to form a restoring force to drive the movable member to restore its movement in the first connector in the axial direction, while the movable member is provided with the first and

second sealing members

140 and 150 for sealing the gap between the movable member 120 and the first connector 100 and the flow passage 123 in the movable member 120 with the movement of the movable member 120 in the first connector.

The elastic member 130 and the second sealing member 150 in this embodiment are respectively fitted over the head end and the tail end of the movable member 120, and the first sealing member 140 is disposed therebetween, and the specific positions can be determined according to the actual situation.

Specifically, the movable member 120 in this example is integrally disposed in the first connector 100 along the axial direction of the first connector 100, the body of the movable member 120 is in clearance fit with the second cavity 112 in the first connector 100, and the annular protrusion 122 on the movable member 120 is in clearance fit with the first cavity 111, so that the movable member 120 can move in the first connector 100 along the axial direction thereof.

The elastic member 130 in this example is integrally disposed between the annular flange 122 and the step 110 in the first connector 100 (i.e., in the first cavity 111 of the first connector 100), and the elastic member 130 is in tension with one end abutting the annular flange 122 at the head end of the movable member 120 and the other end abutting the first seal 140. When the first connector 100 and the second connector 200 are not connected, the first sealing element 140 abuts against the elastic element 130 and the head end of the step 110, and the first sealing element 140 seals the gap between the movable component 120 and the step 110, so as to prevent residual fluid from entering the first cavity 111 area of the first connector 100 and prevent corrosion to the elastic element 130 located therein.

Meanwhile, when the first connector 100 and the second connector 200 are connected, the movable component 120 is pressed by the second connector 200, and the first sealing element 140 is elastically deformed under the pressing action of the elastic element 130 to enter a gap between the movable component 120 and the step 110 (i.e., a gap between the body of the movable component 120 and the second cavity 112), so as to achieve sealing. The deformable sealing of the first sealing member 13 can prevent fluid from entering the first cavity 111 region along the gap between the step 110 and the movable member 120, and thus avoid corrosion of the elastic member 130 therein.

The first sealing member 140 is disposed to cooperate with the elastic member 130, so as to completely seal the gap between the movable member 120 and the step 110 when the first connector 100 is connected to the second connector 200 or when the first connector is not connected to the second connector, and prevent the fluid from entering the first cavity 111 area and corroding the elastic member 130.

The elastic member 12 is preferably a spring, which is integrally fitted over the movable member 120, and is integrally located in the first cavity 111 when the movable member 120 is inserted into the first connector 100, and has one end abutting against the annular flange 122 at the head end of the movable member 120 and the other end abutting against the first sealing member 140 with tension.

The first seal member 140 is preferably a packing integrally mounted in a mounting groove formed in the outer peripheral surface of the body of the movable member 120.

The second seal 150 in this example is used to achieve control of the state of fluid flow into the flow passage 123 in the movable member 120 according to the connection state of the first connector 100 with the second connector 200: when the first connector 100 is connected to the second connector 200 and a closed passage is formed inside, controlling fluid to flow into the flow passage 123 in the movable member 120; when the first connector 100 is disconnected from the second connector 200, the flow passage 123 in the movable member 120 is sealed to prevent fluid from flowing into the flow passage 123, so as to prevent fluid from overflowing from the port of the first connector 100 when the first connector 100 is disconnected from the second connector 200.

Specifically, the second sealing member 150 includes a flange formed at the end of the trailing end of the movable member 120 and a rear end surface disposed at the trailing end of the step 110 and opposite to one side surface of the flange.

On one side of the flange are provided a plurality of openings which may extend to the fluid passage in the movable part 12. The rear end surface of the step 110 can cooperate with the opening in the flange to effectively seal the opening when the movable member 120 moves within the first connector 100.

When the side of the flange provided with the opening abuts the rear end face of the step 110, the rear end face will seal the opening in the flange, thereby preventing fluid from flowing to the fluid channel 123 in the movable part 120; when the two are not in abutment, fluid may flow through the opening to the fluid channel 123 in the movable member 120.

When the second sealing member 150 with such a structure is engaged with the movable member 120, when the first connector 100 is disconnected from the second connector 200, the movable member 120 moves toward the head end in the first connector 100 under the action of the elastic member 130, and then the flange on the movable member is driven to move toward the rear end face of the step 110 until the side face of the flange provided with the opening abuts against the rear end face of the step 110, and at this time, the rear end face on the step 110 seals the opening on the flange, so that the fluid cannot flow to the fluid passage 123 in the movable member 120; when the first connector 100 is connected to the second connector 200 in a sealing manner, the movable member 120 is driven by the second connector 200 to move towards the rear end in the first connector 100, so as to compress the elastic member 130, and then the flange thereon is driven to move away from the rear end face of the step 110, so that the opening provided on the flange is separated from the rear end face of the step 110, and at this time, the fluid can flow to the fluid channel 123 in the movable member 120 through the opening.

With the second seal member 150 of this structure, in order to enhance the sealing effect, the rear end face of the upper step thereof is disposed opposite to one side face of the flange.

In order to further improve the sealing of the opening, the present example provides another solution for the second seal 150.

Referring to fig. 1, the second sealing member 150 specifically includes a flange 151 formed at the trailing end of the movable member 120, a sealing ring 152, and a driving structure 153 formed on a step.

Wherein a side of flange 151 facing the head end of movable member 120 is provided with a plurality of openings 154 that may extend into the fluid passageway of movable member 12.

The seal ring 152 is fitted over the outer peripheral surface of the movable member 120 and abuts against one side surface of the flange 151. The sealing ring 152 can be fitted to a side of the flange 15 having the opening 154 in a non-sealing manner, that is, the sealing ring 152 does not seal the opening 154 of the flange 151 in a conventional manner, but can be deformed when being squeezed to seal the opening 154 of the flange 151, thereby opening and closing the opening 154.

The driving structure 153 is a tapered surface formed on the rear end of the step 110, and the tapered surface is formed at an opening of the rear end of the step corresponding to the sealing ring 152 on the movable member, and is gradually expanded in diameter from the inside to the outside along the axial direction. The conical drive structure thus constructed is capable of engaging with the sealing ring 152 to compress the sealing ring 152 to deform the fluid opening in the sealing flange 15 when the movable member 120 returns to its initial state by the resilient member 130.

When the second sealing member 150 with such a structure is engaged with the movable member 120, when the first connector 100 is disconnected from the second connector 200, the movable member 120 moves towards the head end in the first connector 100 under the action of the elastic member 130, and then the flange 151 and the sealing ring 152 thereon are driven to move towards the tapered surface 153 on the step, as the inner diameter of the tapered surface 153 becomes smaller, the sealing ring 152 is pressed by the tapered surface 153 to deform, so that the sealing ring moves axially along the movable member and abuts against the side surface of the flange 151 provided with the opening 154, and the opening 154 is sealed, so that the fluid cannot flow to the fluid channel 123 (shown in fig. 1) in the movable member 120;

when the first connector 100 is connected with the second connector 200 in a sealing manner, the movable member 120 is driven by the second connector 200 to move towards the rear end in the first connector 100, so as to compress the elastic member 130, and then the flange on the elastic member and the sealing ring 152 are driven to move away from the tapered surface 153 on the step, as the inner diameter of the tapered surface 153 increases, the sealing ring 152 is not squeezed any more, the sealing ring recovers its shape and does not abut against the opening on the flange 151, so as to open the opening 154, and at this time, fluid can flow to the fluid channel 123 (shown in fig. 2) in the movable member 120 through the opening.

On this basis, in this example, in order to improve the connection reliability between the first connector 100 and the second connector 200, a corresponding locking member is provided on the end surface of the first connector 100 opposite to the second connector 200, for locking the connection state between the first connector 100 and the second connector 200 when the first connector 100 is connected and mated with the second connector 200.

Referring to fig. 3, the locking portion 300 mainly includes a slide groove 310 provided on the first connector end face, a slide member 320 slidable in the slide groove, and an end face pressing member 330.

Wherein the sliding groove 310 is provided on the connection end surface of the first connector 100 (i.e., on the end surface of the head end) in the radial direction of the first connector 100.

The sliding member 320 is slidable in the sliding groove 310, and is used for locking the second connector 200 when the second connector 200 is connected with the first connector 100, limiting the movement of the second connector 200 in the axial direction, and locking the connection state of the first connector and the second connector.

As can be seen from the figure, the sliding member 320 mainly includes a sliding end face 321, a pressing face 322, and a first pressing elastic member 323.

The pressing surface 322 is disposed at the tip of the sliding end surface 321, and preferably extends from the tip of the sliding end surface toward the rear end of the first connector. The pressing surface 322 provided in this manner serves as an operating member, and the slide end surface 321 can be driven to slide in the slide groove 310 by simple pressing.

The first pressing elastic member 323 is interposed between the pressing surface 322 and the outer peripheral surface of the first connector 100, and both ends thereof are in contact with the pressing surface 322 and the outer peripheral surface of the first connector, respectively. The first pressing elastic member 323 thus provided serves as an elastic restoring member for generating restoring force to drive the sliding end face 321 to restore sliding in the sliding groove 310.

The thus provided pressing surface 322 cooperates with the first pressing elastic member 323 to drive the sliding end surface 321 to move in the radial direction in the sliding groove.

The slide end face 321 serves as a lock member and is integrally inserted into the slide groove 310. The sliding end face 321 is provided with a lock hole 321a, a first adjustment hole 321b, and a second adjustment hole 321c which are communicated with each other in the radial direction.

Here, a locking hole 321a is formed in the sliding end face 321 at a position substantially corresponding to the first connector end opening, the locking hole 321a being sized to fit the second connector 200 and to allow the second connector to pass therethrough and connect the first connector when it is moved in the radial direction opposite to the first connector end opening; and the locking hole 321a can further move in the radial direction to catch the second connector, restricting its movement in the axial direction.

And the first adjusting hole 321b and the second adjusting hole 321c on the sliding end surface 321 are sequentially distributed along the radial direction of the locking hole 321a, and the first adjusting hole 321b is preferably V-shaped, and the top end thereof is communicated with the locking hole 321a, and the bottom end thereof is communicated with the second adjusting hole 321 c. The first adjusting hole 321b is respectively communicated with the locking hole 321a and the second adjusting hole 321c, and the first adjusting hole 321b has a larger diameter than the second adjusting hole 321 c.

The first adjusting hole 321b and the second adjusting hole 321c are configured to cooperate with each other to form a two-stage variable diameter adjusting hole, which is used to cooperate with the end surface pressing component 330, and cooperate with the pressing component 330 through adjusting holes with different apertures to adjust the sliding direction and the stroke of the sliding component 320 in the sliding groove 310, and then adjust the state of the locking hole 321a on the sliding end surface 321 moving along the radial direction, so as to adjust the cooperation state between the locking hole 321a and the second connector 200.

In a specific implementation, the first regulation hole 321b in this example is preferably V-shaped, the top end thereof communicates with the lock hole 321a, the bottom end thereof communicates with the second regulation hole 321c, and the second regulation hole 321c is preferably a circular hole. The two-stage reducing adjusting hole is formed, wherein the V-shaped first adjusting hole 321b with the gradually reduced diameter can guide when adjusting, so that the end surface pressing part 330 can be matched with the second adjusting hole 321c conveniently; and the circular second regulation hole 321c can be made effective, whereby the stability and reliability of the entire regulation process can be secured.

The sliding member 320 is configured and arranged to drive the sliding end face 321 to slide in the sliding groove 310 in the radial direction (in the illustrated example, to slide downward in the radial direction) by the pressing surface 322 on the sliding member overcoming the elastic force of the first pressing elastic member 323, and the first adjusting hole 321b on the sliding end face 321 is engaged with the end face pressing member 330, so that the locking hole 321a on the sliding end face 321 is opposite to the opening on the end face of the first connector 100, and is in an unlocked state, and the second connector 200 can pass through the locking hole 321a to connect with the first connector;

when no external force acts on the pressing surface 322, the first pressing elastic element 323 drives the pressing surface 322 through the elastic force to drive the sliding end surface 321 to slide in the sliding groove 310 in the opposite direction in the radial direction (in the illustrated case, in the radial direction, the sliding end surface is upward), so that the second adjusting hole 321c on the sliding end surface 321 is engaged with the end surface pressing component 330, and at the same time, the locking hole 321a on the sliding end surface 321 is clamped with the second connector 200 inserted therein to limit the axial movement thereof, thereby completing the locking.

The end surface pressing member 330 in the locking portion 300 is adapted to cooperate with the first adjusting hole 321b and the second adjusting hole 321c of the sliding member 320 to form a two-stage variable diameter adjusting hole, so as to adjust the sliding state of the sliding member 320 in the sliding groove 310 according to the connection state of the second connector and the first connector, and when the second connector is connected to the first connector, the sliding member is driven by the second connector to adjust the sliding member, so that the sliding member 320 can lock the connection state of the first connector and the second connector.

The end surface pressing member 330 in this example mainly includes two parts of an end surface pressing piece 331 and a second pressing elastic piece 332.

The end surface pressing member 331 includes an end cap 331a, and a small diameter adjusting portion 331b and a large diameter adjusting portion 331c which are integrally extended and sequentially provided with the end cap.

The end cap 331a is used to contact and be driven by an end of the second connector 200 when the second connector 200 is connected to the first connector 100.

A small diameter adjusting portion 331b having a size fitted to the second adjusting hole 321c of the sliding member 320 and insertable into the second adjusting hole 321 c; the large diameter adjustment portion 331c is sized to fit into the first adjustment hole 321b of the slide member 320 and to be inserted into the first adjustment hole 321 b.

The end surface pressing piece 331 thus configured passes through the first adjusting hole 321b of the sliding member 320 via the large diameter adjusting portion 331c thereof, and is inserted on the end surface of the head end of the first connector via the second pressing elastic piece 332, and is movable in the axial direction of the first connector as a whole; and the end cap 331a of the end surface pressing piece 331 protrudes out of the first connector.

The end surface pressing member 331 thus provided is engaged with the second pressing elastic member 332 to move in the axial direction of the first connector, and adjusts the engagement state of the small diameter adjustment portion 331b thereof with the second adjustment hole 321c of the slide member 320 and/or the engagement state of the large diameter adjustment portion 331c with the first adjustment hole 321b of the slide member 320, thereby adjusting the radially movable state or the movable stroke of the slide member 320.

Specifically, when the first connector 100 and the second connector 200 are not connected, the end surface pressing member 331 is driven by the second pressing elastic member 332, so that the large diameter adjusting portion 331c thereon is located in the first adjusting hole 321b, and since the large diameter adjusting portion 331c cannot enter the second adjusting hole 321c through the first adjusting hole 321b, under the matching limitation of the large diameter adjusting portion 331c and the first adjusting hole 321b, the locking hole 321a on the sliding member 320 is just opposite to the end opening of the first connector 100, so that the head end of the second connector can pass through the locking hole 321a to be connected with the first connector 100.

When the second connector 200 enters the first connector 100, due to the pressing of the end face of the second connector 200 to the end cap 331a, the end cap 331a drives the small diameter adjustment portion 331b and the large diameter adjustment portion 331c through the first adjustment hole 321b to compress the second pressing elastic member 332 so as to move along the axial direction of the first connector (facing the tail end of the first connector in the illustrated example), so that the large diameter adjustment portion 331c is separated from the first adjustment hole 321b, and the small diameter adjustment portion 331b enters the first adjustment hole 321b, due to the mismatch of the shapes of the two (the outer diameter of the small diameter adjustment portion 331b is smaller than the minimum aperture of the first adjustment hole 321 b), so that a pressing gap is left between the first adjustment hole 321b and the small diameter adjustment portion 331b, and the surface 322 on the sliding member 320 drives the sliding end face 321 in the sliding member 320 to move in the radial direction under the action force of the first pressing elastic member 323 (the illustrated example is moving upwards), then, the second adjusting hole 321c on the sliding end surface 321 is driven to slide along the small-diameter adjusting portion 331b, and finally, is fixedly connected to the small-diameter adjusting portion 331b, at this time, the locking hole 321a on the sliding end surface 321 will be staggered from the end opening portion of the first connector 100, and the staggered portion is used to be snapped into the second connector 200 (such as the card slot 230 thereon) connected to the first connector 100, thereby achieving the connection state locking (as shown in fig. 2).

On this basis, if the connection state between the first connector and the second connector needs to be unlocked, the pressing surface 322 on the sliding member 320 is only pressed, and the first pressing elastic member 323 is compressed, so as to drive the sliding end face 321 in the sliding member 320 to move along the radial direction (in the illustrated example, downward movement), and then drive the locking hole 321a on the sliding end face 321 to disengage from the second connector 200 (such as the locking groove 230 thereon) and to be opposite to the opening at the end of the first connector 100, and at this time, the unlocking state is achieved, and the second connector 200 can be disengaged from the first connector only by moving axially outward. Meanwhile, when the sliding end face 321 drives the lock hole 321a to move and unlock, the second adjusting hole 321c thereon is driven to slide along the small-diameter adjusting portion 331b (in the illustrated example, move downward in the radial direction), so that the small-diameter adjusting portion 331b is separated from the second adjusting hole 321c and enters the first adjusting hole 321b with a larger diameter, at this time, a gap is left between the first adjusting hole 321b and the small-diameter adjusting portion 331b, so that the end face pressing member 331 moves axially along the first connector (in the illustrated example, moves towards the head end of the first connector) under the action of the second pressing elastic member 332, so that the large-diameter adjusting portion 331c thereon is driven to enter the first adjusting hole 321b, and since the diameter of the large-diameter adjusting portion 331c is matched with the diameter of the first adjusting hole 321b, the radial movement of the sliding end face 321 can be limited through the matching of the two, so that the sliding end face cannot move under the action of the first pressing elastic member 323, so that the locking hole on the sliding end face 321 is kept opposite to the opening of the end face of the first connector for subsequent connection with the second connector.

In addition, in the present embodiment of the locking part 300, the second pressing elastic member 332 can be always in a compressed state when being installed, that is, always has an elastic force in the axial direction; the same first elastic pressing member 323 can be always in a compressed state when installed, that is, always has a radial elastic force.

Here, "axial direction" and "radial direction" are relative to the connecting direction of the first connector and the second connector.

With respect to the first connector 100 of the above-mentioned solution, the second connector 200 in this example has a corresponding flow passage 210 formed therein along the axial direction, and the head portion 220 can pass through the lock hole on the first connector 100 and enter the opening at the end of the first connector 100, so that the flow passage 210 thereon is communicated with the flow passage 123 in the first connector 100.

In addition, in order to be engaged with the locking part 300 of the first connector 100 and to achieve sealing when connected to the first connector 100, the head end part 220 of the second connector 200 is provided with a corresponding engaging groove 230 and a corresponding sealing ring 240.

The card slot 230 here is fitted with a locking hole 321a in the locking portion 300, which is just opposite to the locking hole 321a when the second connector 200 is connected to the first connector 100, whereby the locking hole 321a can be inserted into the card slot 230 by radial movement to achieve limitation of axial movement of the second connector 200.

The seal ring 240 of the second connector 200 can be engaged with the inner wall of the end opening of the first connector 100 to seal the gap between the first connector 100 and the second connector 200 when the second connector 200 is connected to the first connector 100.

When the connector constructed according to the above-described aspect is used for fluid transmission, fluid flows from the head end of the first connector 100 to the head end of the second connector 200, and the operation of the connector of the present invention will be described with reference to fig. 1 to 2.

Referring to fig. 1, when the first connector 100 and the second connector 200 are not connected, the first seal 140 in the first connector 100 abuts the step 110 and the elastic member 130, respectively; at this time, the sealing ring 152 of the second sealing member 150 is elastically deformed by the pressing of the tapered surface 153, and abuts against the side surface of the flange having the opening, thereby sealing the opening 154 and preventing the fluid from flowing to the sealing ring.

Referring to fig. 2, when the first connector 100 is connected to the second connector 200, the second connector 200 enters the opening of the channel of the first connector 100, and the second connector 200 pushes the movable member 120 in the first connector 100 to move toward the rear end of the first connector 100, so as to press the first sealing member 140, and the first sealing member 140 enters the gap between the movable member 120 and the second cavity 112 in the first connector to achieve sealing; at the same time, the sealing ring 152 of the second seal 150 is deformed back out of abutment with the opening 154 formed in the flange, through which the fluid enters the interior of the passage of the movable part 120, and thus the second connector.

On this basis, when the first connector 100 and the second connector 200 are disconnected and the second connector 200 is withdrawn from the first connector 100, the movable member 120 returns to the original position under the elastic force of the elastic member 130, so as to drive the first sealing member 140 to withdraw from the gap between the movable member 120 and the first connector 100, and simultaneously drive the sealing ring 152 to move towards the head end of the first connector 100, and the sealing ring 152 is pressed by the tapered surface 153 to abut against a side surface of the flange provided with the opening, so that the fluid is stopped at the sealing ring, and the fluid is prevented from continuously overflowing from the first connector 100.

Therefore, in the whole fluid transmission process, the tightness in the transmission process is effectively ensured through the multiple sealing structures, meanwhile, the tightness of the connection and disconnection opening is ensured, the fluid is prevented from continuously overflowing when the connection and disconnection are carried out, and the stability and the reliability of the process are ensured.

In addition, the connector provided based on the present example can form an endoscope water supply system in which the first connector in the connector thereof is connected to the water supply device through the water supply pipe, and the second connector is provided on the endoscope and connected to the water supply channel thereof.

The operation of the endoscope water supply system constructed in this way is as described above, and will not be described herein. The endoscope water supply system can be well applied to an endoscope system, and the problem that the operation is troublesome because the water pipe needs to be lifted when the water pipe connected with the water bottle is pulled out after the endoscope is used every time so that water in the water pipe flows back to the water bottle can be effectively solved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A connector, comprising: the connector comprises a first connector and a second connector, wherein a movable fluid channel assembly is arranged in the first connector, and the fluid channel assembly is matched with a fluid channel in the second connector to form a closed channel when the first connector and the second connector are connected with each other; wherein the fluid channel assembly has a first seal structure and a second seal structure thereon, the first seal structure restricting the flow of fluid in a gap between the fluid channel assembly and the first connector; the second sealing structure controls the state of fluid flowing into the fluid channel assembly according to the connection state of the first connector and the second connector;

the second seal structure includes:

2. The connector of claim 1, wherein the fluid passage assembly comprises a movable member and an elastic member, the first connector has a step formed therein for engaging with the movable member, the movable member has a fluid passage formed therein and is embedded in the first connector by the elastic member, and the elastic member engages with the step in the first connector to generate deformation energy for driving the movable member to move axially in the first connector; a first sealing structure and a second sealing structure are arranged on the movable component.

3. The connector according to claim 1, wherein the first seal structure is formed by a first seal ring fitted around the outer periphery of the movable member, and both ends of the first seal ring abut against the elastic member and the step, respectively, when the movable member is in the initial state; and can enter a gap between the movable part and the step after being deformed along with the movement of the movable part.

4. The connector according to claim 1, wherein the driving structure is a tapered surface formed on the step, the tapered surface being formed at an opening of a rear end of the step corresponding to the second packing on the movable member and having a diameter gradually expanded from inside to outside in an axial direction.

5. The connector according to claim 1, further comprising a locking member that locks a connection state of the first connector with the second connector when the first connector is connected to be mated with the second connector.

6. The connector of claim 5, wherein the locking member comprises:

a slide member slidable in the slide groove;

7. The connector according to claim 6, wherein the sliding member includes a sliding end face, a pressing face provided on the sliding end face, and a first pressing elastic member that engages with the pressing face;

8. The connector according to claim 7, wherein the end face pressing part comprises an end face pressing part and a second pressing elastic part, the end face pressing part comprises an end cover and a multi-stage reducing adjusting part extending integrally with the end cover, and the end face pressing part penetrates through the multi-stage reducing adjusting hole and is inserted into the first connector through the second pressing elastic part; the end face pressing piece can move along the axial direction of the first connector under the action of the second pressing elastic piece, so that the multi-stage reducing adjusting portion on the end face pressing piece is matched with the multi-stage reducing adjusting hole, and the state of the locking hole moving along the radial direction is adjusted.

9. An endoscope water supply system characterized by comprising the connector of any one of claims 1 to 8, a first connector of the connectors being connected to a water supply device through a water supply pipe, and a second connector being connected to a water supply channel of an endoscope.

10. An endoscope comprising the endoscope water supply system according to claim 9.