A suction seat and an endoscope including the suction seat

Abstract

The present invention discloses an attraction seat, including a valve body and a valve core; a first opening and a second opening, one for liquid inlet and the other for liquid outlet; the internal flow channel of the valve body is larger than the middle part of the valve core, and a groove along the axial direction of the valve core is provided on the peripheral wall of the middle part of the valve core, and the lower end of the groove is close to the sealing flange; the third opening is used to press the upper end of the valve core to make the lower end of the groove protrude out of the first opening; the first magnet abuts the valve body downward, and the second magnet abuts the valve core upward, so that the valve core is reset upward and the sealing flange seals the first opening. An endoscope including the attraction seat is also disclosed. Two magnetic rings are used instead of soft rebound materials, which is easy to assemble, has a bright surface, is easy to clean, will not be damaged in long-term use, will not fatigue due to reciprocating action, has a long service life, and improves economy and environmental protection; it is easy to fold, which solves the problem of cleaning and disinfection.

Description

Technical Field

[0001] The invention relates to an attraction seat. Background Art

[0002] The suction seat, also called a valve body, includes a valve body and a valve core that penetrates the valve body. The valve body is provided with a liquid inlet, an internal flow channel and a liquid outlet. The sliding movement of the valve core in the valve body is used to control the on-off of the internal flow channel. Generally, it is set as follows: the internal flow channel is connected when the valve core is driven to slide forward, and the internal channel is closed when the elastic member drives the valve core to reset.

[0003] In the prior art, soft materials are used as elastic parts, and there is a rustling sound when the soft materials rebound. When soft materials are used as rebound parts, the soft materials need to be larger and have sufficient restoring force. Due to the properties of plastic materials and large surface, bacteria are easily adhered and difficult to clean. One end of the soft material needs to buckle the valve core or valve body, and cleaning and disassembly are also relatively inconvenient. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, solve the problem of selecting the rebound part and the problem of inconvenient assembly and disassembly of the suction seat, the technical solution adopted by the present invention is:

[0005] A suction seat comprises a valve body with an internal flow channel and a valve core that penetrates the internal flow channel of the valve body, the lower end of the valve body is provided with a first opening connected to the internal flow channel, the side wall is provided with a second opening connected to the internal flow channel, and the upper end is provided with a third opening connected to the internal flow channel; the first opening and the second opening, one is used for liquid inlet and the other is used for liquid outlet; the lower end of the valve core is provided with a sealing flange that protrudes out of the first opening; the internal flow channel of the valve body is larger than the middle part of the valve core, and the peripheral wall of the middle part of the valve core is provided with a groove along the axial direction of the valve core, and the lower end of the groove is close to the sealing flange; the third opening is used to press the upper end of the valve core, and the pressing of the valve core can drive the lower end of the groove to protrude out of the first opening; it also includes a first magnet and a second magnet that are arranged up and down and magnetically repel each other, the first magnet abuts the valve body downward, and the second magnet abuts the valve core upward; the first magnet and the second magnet are used to drive the valve core to reset upward and to drive the sealing flange to seal the first opening.

[0006] Beneficial effects: Two magnetic rings are used instead of soft rebound materials, which are easy to assemble, have a bright surface, are easy to clean, will not be damaged during long-term use, will not get fatigued due to reciprocating action, have a long service life, and are more economical and environmentally friendly; they are easy to fold and can solve the problem of cleaning and disinfection.

[0007] According to another specific embodiment of the present invention, further, the upper end of the valve core is connected to an end cover, the upper end of the valve body is accommodated in the end cover, and the valve core can rotate around its axial direction in the valve body; the inner circumferential wall of the end cover and the outer circumferential wall of the upper end of the valve body, one is provided with an anti-detachment flange, and the other is provided with at least two protrusions, and when the anti-detachment flange and the protrusions are abutted against each other, the upper end of the valve body can be prevented from detaching from the end cover; at least two notches are provided on the anti-detachment flange, and the correspondence between the protrusions and the notches is used for disassembly and assembly of the upper end of the valve body and the end cover.

[0008] According to another specific embodiment of the present invention, further, the valve body includes a main body and a plug connected to the lower end of the main body; the first opening is arranged at the lower end of the plug; the plug is made of soft material, and the plug is used for sealing the main body and the sealing flange, and for snap-connecting with the main body.

[0009] According to another specific embodiment of the present invention, further, the lower end of the main body has an inward flange protruding on the inner wall, the upper end of the plug is embedded in the lower end of the main body, the inward flange is used to snap into the upper end of the plug, and the upper end of the plug is sealed and connected to the inner wall and / or the inward flange of the internal channel of the main body.

[0010] According to another specific embodiment of the present invention, further, the lower end of the valve body is used for plug-in; the lower end of the main body is arranged to be an inverted cone, the upper end of the plug is provided with a connecting groove surrounding its outer wall, and the end surface portion of the lower end of the main body is wrapped by the lower end portion of the connecting groove, and the inward flange is buckled onto the upper end portion of the connecting groove.

[0011] According to another specific embodiment of the present invention, further, the upper end of the valve core is connected to an end cover, the upper end of the valve body is accommodated in the end cover, and the valve core can rotate around its axial direction in the valve body; on the inner circumferential wall of the end cover and the outer circumferential wall of the upper end of the valve body, one is provided with an anti-slip flange and the other is provided with at least two protrusions; when the anti-slip flange abuts against the protrusion, the sealing flange seals the first opening and the plug is elastically compressed.

[0012] According to another specific embodiment of the present invention, further, the valve body is provided with a pipe portion connected to the second opening.

[0013] According to another specific embodiment of the present invention, further, one end of the tube away from the second opening is provided as a sealing plug, and at least two conical flanges are axially provided on the outer wall of the sealing plug, with the conical tips of the conical flanges facing the end of the sealing plug.

[0014] According to another specific embodiment of the present invention, further, the lower end of the valve body is used for plugging, and the outer wall of the lower end of the valve body is provided with convex strips and / or grooves for aligning and plugging.

[0015] An endoscope comprises a suction seat and a shell, on which a liquid guide port is arranged; the first opening or the second opening of the suction seat is used to connect to the liquid guide port. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the suction seat of the present invention when the first opening is opened;

[0017] Figure 2 A cross-sectional view of the suction seat of the present invention when the first opening is opened;

[0018] Figure 3 It is a cross-sectional view of the suction seat of the present invention when the first opening is closed;

[0019] Figure 4 It is an exploded schematic diagram of the attraction seat of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the valve core of the present invention;

[0021] Figure 6 It is a schematic structural diagram of the endoscope of the present invention. DETAILED DESCRIPTION

[0022] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0023] like Figures 1 to 5 As shown, a suction seat comprises a valve body 1 with an internal flow channel and a valve core 2 penetrating the internal flow channel of the valve body 1, the lower end of the valve body 1 is provided with a first opening 12a connected to the internal flow channel, the side wall is provided with a second opening 11a connected to the internal flow channel, and the upper end is provided with a third opening 11b connected to the internal flow channel; the first opening 12a and the second opening 11a, one is used for liquid inlet and the other is used for liquid outlet; the lower end of the valve core 2 is provided with a sealing flange 2a protruding from the first opening 12a; the internal flow channel of the valve body 1 is larger than the middle part of the valve core 2, and the valve A groove 2c is provided on the peripheral wall in the middle of the core 2 along the axial direction of the valve core 2, and the lower end of the groove 2c is close to the sealing flange 2a; the third opening 11b is used to press the upper end of the valve core 2, and the pressing of the valve core 2 can drive the lower end of the groove 2c to protrude out of the first opening 12a; it also includes a first magnet 3 and a second magnet 4 which are arranged up and down and magnetically repel each other, the first magnet 3 abuts against the valve body 1 downward, and the second magnet 4 abuts against the valve core 2 upward; the first magnet 3 and the second magnet 4 are used to drive the valve core 2 to reset upward and to drive the sealing flange 2a to seal the first opening 12a.

[0024] Taking the first opening 12a as the liquid inlet and the second opening 11a as the liquid outlet as an example, when the first opening 12a is opened, the liquid flows in the following direction: Figure 1 and Figure 2V direction as shown. The valve body 1 is provided with a pipe portion 13 connected to the second opening 11a. One end of the pipe portion 13 away from the second opening 11a is provided as a sealing plug, and at least two conical flanges 13a are axially provided on the outer wall of the sealing plug, and the conical tips of the conical flanges 13a face the end of the sealing plug. The lower end of the valve body 1 is used for plugging, and the outer wall of the lower end of the valve body 1 is provided with convex strips and / or grooves for aligning plugging.

[0025] like Figure 6 As shown, the endoscope includes a housing 81, on which a liquid inlet 82 is provided; the first opening 12a or the second opening 11a of the suction seat is used to connect the liquid inlet 82. One end of the suction seat is connected to the endoscope housing 81, and the other end is connected to the liquid pump, so that disinfectant can be introduced into the endoscope housing 81 and sucked out. The setting tube 13 is used to plug into the liquid inlet 82 of the endoscope housing 81, and the lower end of the valve body 1 is used to plug in an external device; the upper end of the valve core 2 is pressed down to make the lower end of the groove 2c protrude out of the first opening 12a, and the first opening 12a, the groove 2c, the internal flow channel and the second opening 11a form a conductive infusion path.

[0026] The endoscope also includes a rotating shaft connected to its lower end, an insertion tube connected to the rotating shaft, an electrical connector arranged on the shell 81, an angle knob with one end inserted into the shell 81 and the other end connected to the handle, a light-emitting component and a CCD camera are arranged at the end of the insertion tube, and the light-emitting component and the CCD camera are electrically connected to the controller (image processor, including a touch screen) through an electrical connection socket; a snake-bone structure is also arranged at the end of the insertion tube, and each joint in the snake-bone structure is connected to the angle knob by a thin rope, and the angle knob is used to drive the bending of the snake-bone.

[0027] The suction seat of the present invention is similar to a switch valve body. In addition to being used in endoscopes, it can also be used in other equipment, pipelines, etc. where it is necessary to control the flow of liquid media.

[0028] The first magnet 3 and the second magnet 4 are magnetic rings sleeved on the valve core 2 . A force-bearing flange 2d for the second magnet 4 to push up is arranged on the outer wall of the valve core 2 . A step portion for supporting the first magnet 3 is arranged inside the valve body 1 .

[0029] The valve body 1 includes a main body 11 and a plug 12 connected to the lower end of the main body 11; the first opening 12a is set at the lower end of the plug 12; the plug 12 is made of soft material, and the plug 12 is used to seal the main body 11 and the sealing flange 2a, and is used to be snap-connected with the main body 11.

[0030] The lower end of the body 11 has an inward flange 11c protruding from the inner wall, the upper end of the plug 12 is embedded in the lower end of the body 11, and the inward flange 11c is used to snap the upper end of the plug 12, and the upper end of the plug 12 is sealingly connected to the inner wall of the internal channel of the body 11 and / or the inward flange 11c.

[0031] The lower end of the valve body 1 is used for plugging; the lower end of the main body 11 is set to an inverted cone, and the upper end of the plug 12 is provided with a connecting groove 12b surrounding its outer wall, and the end surface of the lower end of the main body 11 is wrapped by the lower end of the connecting groove 12b, and the inward flange 11c is buckled to the upper end of the connecting groove 12b.

[0032] The upper end of the valve core 2 is connected to an end cover 2b, and the upper end of the valve body 1 is accommodated in the end cover 2b. The valve core 2 can rotate in the valve body 1 around its axial direction; on the inner peripheral wall of the end cover 2b and the outer peripheral wall of the upper end of the valve body 1, one is provided with an anti-slip flange 5 and the other is provided with at least two protrusions 6. When the anti-slip flange 5 and the protrusion 6 abut against each other, the upper end of the valve body 1 can be prevented from being separated from the end cover 2b, the sealing flange 2a seals the first opening 12a, and the plug 12 is elastically compressed to prevent the sealing flange 2a from being embedded in the internal channel and prevent the valve core 2 from passing through the third opening 11b of the valve body 1 under the magnetic repulsive force. At least two notches 5a are provided on the anti-slip flange 5, and the correspondence between the protrusion 6 and the notch 5a is used for the disassembly and assembly of the upper end of the valve body 1 and the end cover 2b.

[0033] Products, materials, etc. are not the structure of the present invention; the introduction of products, materials, etc. in the rights is to illustrate the structure and / or function.

[0034] Motors, cylinders, hydraulic cylinders, pump bodies, air pipes and other items may not be available in actual sales, that is, they are not sold together, and the purchaser needs to purchase and assemble them separately; such parts are parts that are known to technical personnel in this field to complete the corresponding functions.

[0035] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0040] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Any modification or equivalent substitution that does not depart from the spirit and scope of the present invention shall be included in the scope of the technical solution of the present invention.

Claims

1. A suction seat, characterized in that: The invention comprises a valve body (1) with an internal flow channel and a valve core (2) penetrating the internal flow channel of the valve body (1); the lower end of the valve body (1) is provided with a first opening (12a) connected to the internal flow channel, the side wall is provided with a second opening (11a) connected to the internal flow channel, and the upper end is provided with a third opening (11b) connected to the internal flow channel; the first opening (12a) and the second opening (11a), one for liquid inlet and the other for liquid outlet; the lower end of the valve core (2) is provided with a sealing flange (2a) protruding from the first opening (12a); the valve body The valve body (1) has an internal flow passage that is larger than the middle part of the valve core (2); a groove (2c) is provided on the peripheral wall of the middle part of the valve core (2) along the axial direction of the valve core (2); the lower end of the groove (2c) is close to the sealing flange (2a); the third opening (11b) is used to press the upper end of the valve core (2); the pressing of the valve core (2) can drive the lower end of the groove (2c) to protrude out of the first opening (12a); and the valve body (1) and the second magnet (4) are arranged up and down and have magnetic repulsion to each other, the first magnet (3) abuts the valve body (1) downward, and the second magnet (4) abuts the valve body (1) upward. The valve core (2) is abutted against the valve core (2); the first magnet (3) and the second magnet (4) are used to drive the valve core (2) to reset upward and to drive the sealing flange (2a) to seal the first opening (12a); the upper end of the valve core (2) is connected to the end cover (2b), the upper end of the valve body (1) is accommodated in the end cover (2b), and the valve core (2) can rotate around its axial direction in the valve body (1); the inner peripheral wall of the end cover (2b) and the outer peripheral wall of the upper end of the valve body (1) are provided with an anti-drop flange (5) on one side and at least two protrusions (6) on the other side to prevent the valve core (2) from falling off. When the anti-detachment flange (5) and the protrusion (6) abut against each other, the upper end of the valve body (1) can be prevented from detaching from the end cover (2b); at least two notches (5a) are provided on the anti-detachment flange (5); the correspondence between the protrusion (6) and the notches (5a) is used for disassembly and assembly of the upper end of the valve body (1) and the end cover (2b); the first magnet (3) and the second magnet (4) are magnetic rings sleeved on the valve core (2); a force-bearing flange (2d) for supporting the second magnet (4) is provided on the outer wall of the valve core (2); and a step portion for supporting the first magnet (3) is provided inside the valve body (1).

2. The suction seat according to claim 1, characterized in that: The valve body (1) comprises a main body (11) and a plug (12) connected to the lower end of the main body (11); the first opening (12a) is arranged at the lower end of the plug (12); the plug (12) is made of a soft material, and the plug (12) is used for sealingly connecting the main body (11) and the sealing flange (2a), and for being snap-connected with the main body (11).

3. The suction seat according to claim 2, characterized in that: The lower end of the body (11) is provided with an inward flange (11c) protruding from the inner wall, the upper end of the plug (12) is embedded in the lower end of the body (11), and the inward flange (11c) is used to snap onto the upper end of the plug (12), and the upper end of the plug (12) is sealingly connected to the inner wall of the internal channel of the body (11) and / or the inward flange (11c).

4. The suction seat according to claim 3, characterized in that: The lower end of the valve body (1) is used for plugging; the lower end of the main body (11) is arranged in an inverted cone, the upper end of the plug (12) is provided with a connecting groove (12b) surrounding its outer wall, and the end surface of the lower end of the main body (11) is wrapped by the lower end of the connecting groove (12b), and the inward flange (11c) is buckled against the upper end of the connecting groove (12b).

5. The suction seat according to any one of claims 2 to 4, characterized in that: When the anti-drop flange (5) abuts against the protrusion (6), the sealing flange (2a) seals the first opening (12a) and the plug (12) is elastically compressed.

6. The suction seat according to any one of claims 1 to 4, characterized in that: The valve body (1) is provided with a pipe portion (13) communicating with the second opening (11a).

7. The suction seat according to claim 6, characterized in that: One end of the tube portion (13) away from the second opening (11a) is provided as a sealing plug, and at least two conical flanges (13a) are axially provided on the outer wall of the sealing plug, with the conical tips of the conical flanges (13a) facing the end of the sealing plug.

8. The suction seat according to any one of claims 1 to 4, characterized in that: The lower end of the valve body (1) is used for plugging, and a convex strip and / or a groove for aligning and plugging is provided on the outer wall of the lower end of the valve body (1).

9. An endoscope, characterized in that: The invention comprises the suction seat as claimed in any one of claims 1 to 8; and further comprises a shell (81), wherein a liquid guide port (82) is provided on the shell (81); and the first opening (12a) or the second opening (11a) of the suction seat is used for connecting the liquid guide port (82).

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