Endoscope suction valve, endoscope handle and endoscope

Abstract

The utility model is suitable for the technical field of endoscopes, and provides an endoscope suction valve, an endoscope handle and an endoscop.The endoscope suction valve comprises a valve body, a first limiting protrusion structure is arranged on the outer wall of the valve body, a guide groove is formed in the first limiting protrusion structure, and the guide groove is distributed in the axial direction of the valve body; the valve bonnet is provided with a limiting buckle, the limiting buckle is in sliding fit with the guide groove and used for guiding the valve bonnet to move in the axial direction of the valve body, and in the circumferential direction of the valve body, the first limiting protruding structure is in limiting fit with the limiting buckle and used for stopping the valve bonnet. By means of the endoscope suction valve, the valve bonnet can only move in the axial direction relative to the valve body and cannot rotate relative to the valve body, when a doctor operates the valve bonnet, the valve bonnet is not likely to slip relative to the valve body, and it is ensured that an operation is conducted smoothly.

Description

Technical Field

[0001] The present application relates to the technical field of endoscopes, and in particular to an endoscope suction valve, an endoscope handle and an endoscope. Background Art

[0002] In the prior art, a suction valve is installed on the handle of the endoscope, and the valve cap of the suction valve is usually buckled on the valve body to prevent it from falling off. However, when the doctor operates the valve cap, the valve cap is prone to move relative to the valve body and slip, causing inconvenience to the operation. Utility Model Content

[0003] The purpose of this application is to provide an endoscope suction valve, an endoscope handle and an endoscope to solve the above technical problems existing in the prior art, mainly including the following contents:

[0004] The first aspect of the present application provides an endoscope suction valve, comprising:

[0005] A valve body, wherein the outer wall of the valve body is provided with a first position-limiting protrusion structure, wherein a guide groove is constructed in the first position-limiting protrusion structure, and the guide groove is distributed along the axial direction of the valve body;

[0006] The valve bonnet has a limit buckle, and the limit buckle is slidably matched with the guide groove to guide the valve bonnet to move axially along the valve body, and along the circumference of the valve body, the first limit protrusion structure is limitedly matched with the limit buckle to stop the valve bonnet.

[0007] In order to further better implement the present application, the following setting structure is particularly adopted: the outer wall of the valve body is provided with at least two place-occupying protrusion structures, and the two place-occupying protrusion structures are respectively located on both sides of the guide groove.

[0008] In order to further better implement the present application, the following setting structure is particularly adopted: the protruding direction of the first limiting protrusion structure is the same as the protruding direction of the place-occupying protrusion structure.

[0009] In order to further better implement the present application, the following setting structure is particularly adopted: the protruding direction of the first limiting protrusion structure is consistent with the protruding direction of the positioning structure on the outer wall of the valve body.

[0010] In order to better implement the present application, the following configuration structure is particularly adopted: in the axial direction of the valve body, the size of the place-occupying protrusion structure is not less than the size of the guide groove.

[0011] In order to better implement the present application, the following setting structure is particularly adopted: the proximal end of the valve body is provided with a second limiting protrusion structure along the circumferential direction, and the first limiting protrusion structure and the occupying protrusion structure are both located on the same side of the second limiting protrusion structure, wherein:

[0012] The top surface of the first limiting protrusion structure is not lower than the outer peripheral surface of the second limiting protrusion structure, and / or,

[0013] The top surface of the place-occupying protrusion structure is not lower than the outer peripheral surface of the second position-limiting protrusion structure.

[0014] In order to further better implement the present application, the following setting structure is particularly adopted: in the circumferential direction of the valve body, the size between the place-occupying protrusion structure and the first position-limiting protrusion structure adjacent to it is smaller than the size of the position-limiting buckle.

[0015] In order to better realize the present application, the following structure is particularly adopted: the valve cap is provided with at least two notches at intervals on the circumferential side wall, an elastic arm is provided in the notch, the limit buckle is provided on the elastic arm, and a deformation seam is defined between the elastic arm and the opposite surface of the valve cap side wall.

[0016] A second aspect of the present application provides an endoscope handle, comprising the endoscope suction valve as described above.

[0017] A third aspect of the present application provides an endoscope, comprising the endoscope handle as described above.

[0018] Compared with the prior art, this application has at least the following technical effects:

[0019] The endoscopic suction valve of the present application is provided with a first limiting protrusion structure on the outer wall of the valve body, and a guide groove is constructed in the first limiting protrusion structure, the guide groove extends along the axial direction of the valve body, and the limiting buckle on the valve cap cooperates with the guide groove, so that the valve cap can only move axially relative to the valve body, and the valve cap will not rotate relative to the valve body. When the doctor operates the valve cap, the valve cap is not easy to slip relative to the valve body, thereby ensuring the smooth progress of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 is a schematic diagram of an endoscope suction valve installed on an endoscope handle in the present application;

[0022] Figure 2 is a cross-sectional view of the endoscope suction valve installed on the endoscope handle in the present application (the endoscope suction valve is not cut);

[0023] Figure 3 is a schematic diagram of the structure of the endoscope suction valve in the present application;

[0024] Figure 4 It is a structural schematic diagram of the positioning structure in this application;

[0025] Figure 5 It is a structural schematic diagram of the valve body in this application;

[0026] Figure 6 is a schematic diagram of the second limiting protrusion structure in the present application;

[0027] Figure 7 It is a structural schematic diagram of the valve cap in this application.

[0028] In the figure:

[0029] 10-valve body; 11-first position limiting protrusion structure; 12-guide groove; 13-place-occupying protrusion structure; 14 positioning structure; 15-second position limiting protrusion structure;

[0030] 20-valve cap; 21-limiting buckle; 22-notch; 23-elastic arm; 24-deformation joint. DETAILED DESCRIPTION

[0031] The following description provides many different embodiments or examples for implementing different features of the present application. The components and arrangements described in the following specific examples are only used to simplify the present application and are only used as examples, not to limit the present application.

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents the selected embodiments of the present application.

[0033] In this application, 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In the present application, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and 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, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] In addition, in the present application, "proximal" and "distal" refer to the far and near positions of the structure relative to human operation in the use environment, so as to facilitate the description of the positional relationship between components and facilitate understanding; for the same component, "proximal" and "distal" are the relative positional relationship of the component, not absolute; therefore, it should be understood from the perspective of realizing the principles of the present application, and should not deviate from the essence of the present application.

[0036] In the prior art, a suction valve is installed on the endoscope handle, and the valve cap of the suction valve is usually buckled on the valve body to prevent it from falling off. However, after the valve cap and the valve body are matched, there is no limit in the circumferential direction, which makes it easy for the valve cap to rotate relative to the valve body. Especially when the doctor is operating the valve cap, the valve cap is easy to move relative to the valve body and slip when subjected to external force, causing inconvenience to the operation.

[0037] In view of this, the first aspect of the present application provides an endoscope suction valve, such as Figure 1-Figure 7 As shown, including:

[0038] The valve body 10 has a first position limiting protrusion structure 11 disposed on its outer wall. A guide groove 12 is constructed inside the first position limiting protrusion structure 11 . The guide groove 12 is distributed along the axial direction of the valve body 10 .

[0039] Exemplarily, the valve body 10 is provided with a first limiting protrusion structure 11 on the proximal end of the outer wall. The first limiting protrusion structure 11 may be a convex block type limiting structure, or may be a rib type limiting structure or other limiting structures. In the present application, the first limiting protrusion structure 11 is preferably a rib type limiting structure. In the present embodiment, the first limiting protrusion structure 11 includes a first limiting rib and a second limiting rib provided on the outer wall of the valve body 10. The first limiting rib and the second limiting rib are arranged to extend along the axial direction of the valve body 10. The first limiting rib and the second limiting rib are arranged in parallel. The first limiting rib and the second limiting rib define a guide groove 12, that is, the guide groove 12 is distributed along the axial direction of the valve body 10, so as to facilitate the installation of the valve cap 20 on the valve body 10.

[0040] Optionally, in the present application, the number of guide grooves 12 arranged on the outer wall of the valve body 10 is one, two, three, four, etc., which is not limited here.

[0041] The valve bonnet 20 has a limit buckle 21, which is slidably matched with the guide groove 12 to guide the valve bonnet 20 to move axially along the valve body 10, and along the circumference of the valve body 10, the first limit protrusion structure 11 is limitedly matched with the limit buckle 21 to stop the valve bonnet 20.

[0042] Exemplarily, the limit buckle 21 of the valve cap 20 can slide in the guide groove 12 along the axial direction of the valve body 10, thereby realizing the relevant operation of the endoscope. The guide groove 12 is arranged to extend along the axial direction of the valve body 10, and the guide groove 12 has a first limit protrusion structure 11 on at least two sides of the radial direction. The limit buckle 21 is limitedly matched with the first limit protrusion structure 11 in the radial direction to limit the movement of the limit buckle 21 in the radial direction, that is, after the valve cap 20 and the valve body 10 are assembled, the valve cap 20 can only slide in the axial direction relative to the valve body 10, and cannot rotate relative to the valve body 10.

[0043] Optionally, in the present application, the number of limit buckles 21 is set corresponding to the number of guide grooves 12, and usually the number of limit buckles 21 and guide grooves 12 is two or more, thereby achieving smooth assembly of the valve cap 20 and the valve body 10 and improving the sealing between the two.

[0044] Therefore, the endoscopic suction valve of the present application is provided with a first limiting protrusion structure 11 on the outer wall of the valve body 10, and a guide groove 12 is constructed in the first limiting protrusion structure 11, and the guide groove 12 extends along the axial direction of the valve body 10. The limiting buckle 21 on the valve cap 20 cooperates with the guide groove 12, so that the valve cap 20 can only move axially relative to the valve body 10, and the valve cap 20 will not rotate relative to the valve body 10. When the doctor operates the valve cap 20, the valve cap 20 is not easy to slip relative to the valve body 10, thereby ensuring the smooth progress of the operation.

[0045] According to some optional embodiments, at least two place-occupying protrusion structures 13 are disposed on the outer wall of the valve body 10 , and the two place-occupying protrusion structures 13 are respectively located on both sides of the guide groove 12 .

[0046] Exemplarily, the place-occupying protrusion structure 13 can be a convex block type limiting structure, or a rib type limiting structure. In the present application, the place-occupying protrusion structure 13 is preferably a rib type limiting structure. In the present embodiment, the valve body 10 is provided with place-occupying protrusion structures 13 on both sides of the first place-occupying protrusion structure 11. The place-occupying protrusion structure 13 is adjacent to the guide groove 12. When the valve cap 20 is assembled with the valve body 10, it is convenient for the limit buckle 21 to be smoothly installed in the guide groove 12. Exemplarily, when the limit buckle 21 of the valve cap 20 is installed in the guide groove 12, due to the place-occupying protrusion structures 13 provided on both sides of the guide groove 12, the limit buckle 21 cannot be installed on both sides of the guide groove 12, and then it is easily installed in the guide groove 12, thereby improving the assembly accuracy between the valve body 10 and the valve cap 20.

[0047] In some optional embodiments, in order to further improve the assembly accuracy between the valve body 10 and the valve cap 20 , two place-occupying protrusion structures 13 are respectively provided on both sides of the guide groove 12 to reduce the accommodation space on both sides of the guide groove 12 .

[0048] In some optional embodiments, a plurality of limit buckles 21 are provided on the valve cap 20, wherein some of the limit buckles 21 are located between two adjacent occupying protrusion structures 13. At this time, two adjacent occupying protrusion structures 13 can limit the circumference of the limit buckles 21, thereby further limiting the rotation of the valve cap 20 relative to the valve body 10.

[0049] In some optional embodiments, a place-occupying protrusion structure 13 is provided on both sides of the guide groove 12. When the valve bonnet 20 is assembled with the valve body 10 and the valve bonnet 20 is pressed axially along the valve body 10, the place-occupying protrusion structure 13 can support the inner wall of the valve bonnet 20 so that the valve bonnet 20 is uniformly stressed in the circumferential direction during the pressing process, thereby avoiding deflection and ensuring smooth pressing and rebound of the valve bonnet 20 on the valve body 10.

[0050] According to some optional embodiments, the protruding direction of the first position-limiting protrusion structure 11 is the same as the protruding direction of the place-occupying protrusion structure 13 .

[0051] In the above scheme, exemplarily, the protruding direction of the first limiting protrusion structure 11 is perpendicular to the axis of the valve body 10, and the protruding direction of the occupying protrusion structure 13 is also perpendicular to the axis of the valve body 10, which facilitates the subsequent production or mold opening of the suction valve mold.

[0052] According to some optional embodiments, the protruding direction of the first position-limiting protrusion structure 11 is consistent with the protruding direction of the positioning structure 14 on the outer wall of the valve body 10 .

[0053] In the above scheme, at least one positioning structure 14 is further provided on the outer wall of the valve body 10, and the positioning structure 14 is arranged axially, radially, obliquely, etc. along the valve body 10. Here, the protruding direction of the first limiting protrusion structure 11 is consistent with the protruding direction of the positioning structure 14, which facilitates the subsequent smooth mold opening and reduces costs, and also facilitates the mold closing operation.

[0054] According to some optional embodiments, in the axial direction of the valve body 10 , the size of the place-occupying protrusion structure 13 is not smaller than the size of the guide groove 12 .

[0055] Exemplarily, the place-occupying protrusion structure 13 can be a place-occupying convex block or a place-occupying rib, and the present application preferably uses a place-occupying rib. The place-occupying protrusion structure 13 also extends along the axial direction of the valve body 10. Specifically, the size of the place-occupying protrusion structure 13 in the axial direction is set to be not less than the size of the guide groove 12 in the axial direction, so that the limiting buckle 21 of the valve cap 20 can smoothly enter the guide groove 12. In some embodiments, even if the limiting buckle 21 is detached from the guide groove 12, due to the setting of the place-occupying protrusion structure 13, the limiting buckle 21 will not be stuck on the outside of the guide groove 12. By slightly rotating the valve cap 20, the limiting buckle 21 can smoothly return to the guide groove 12.

[0056] According to some optional embodiments, a second position limiting protrusion structure 15 is circumferentially provided at the proximal end of the valve body 10, and the first position limiting protrusion structure 11 and the place-occupying protrusion structure 13 are both located on the same side of the second position limiting protrusion structure 15, wherein:

[0057] The top surface of the first limiting protrusion structure 11 is not lower than the outer peripheral surface of the second limiting protrusion structure 15, and / or,

[0058] The top surface of the place-occupying protrusion structure 13 is not lower than the outer peripheral surface of the second position-limiting protrusion structure 15 .

[0059] In the above solution, the second limiting protrusion structure 15 can be an annular limiting rib, and the first limiting protrusion structure 11 and the place-occupying protrusion structure 13 are both located on the side of the second limiting protrusion structure 15 away from the proximal end of the valve body 10. Exemplarily, one end of the first limiting protrusion structure 11 abuts against one side of the second limiting protrusion structure 15, and one end of the place-occupying protrusion structure 13 can also abut against one side of the second limiting protrusion structure 15, so that the limiting buckle 21 can enter the guide groove 12.

[0060] In some optional embodiments, the top surface of the first limiting protrusion structure 11 is not lower than the outer peripheral surface of the second limiting protrusion structure 15, wherein the top surface of the first limiting protrusion structure 11 is the surface corresponding to the outer wall of the valve body 10. With this arrangement, when the limiting buckle 21 enters the guide groove 21, it will not be buckled with the second limiting protrusion structure 15, and can smoothly enter the guide groove 12 along the outer peripheral surface of the second limiting protrusion structure 15.

[0061] In the present application, preferably, the top surface of the first position-limiting protrusion structure 11 is coplanar with the outer peripheral surface of the second position-limiting protrusion structure 15 .

[0062] In some optional embodiments, the top surface of the place-occupying protrusion structure 13 is not lower than the outer peripheral surface of the second position-limiting protrusion structure 15, wherein the top surface of the place-occupying protrusion structure 13 is a surface corresponding to the outer wall of the valve body 10. With this arrangement, when the place-limiting buckle 21 enters the guide groove 12 and rotates to the place-occupying protrusion structure 13, it will not engage with the second position-limiting protrusion structure 15. The place-occupying protrusion structure 13 can play a place-occupying role to a great extent, assisting the place-limiting buckle 21 in entering the guide groove 12.

[0063] According to some optional embodiments, in the circumferential direction of the valve body 10 , the dimension between the place-occupying protrusion structure 13 and the first position-limiting protrusion structure 11 adjacent thereto is smaller than the dimension of the position-limiting buckle 21 .

[0064] In the above scheme, the distance between the side wall of the place-occupying protrusion structure 13 and the side wall of the adjacent first position-limiting protrusion structure 11 is smaller than the width of the position-limiting buckle 21. When the position-limiting buckle 21 rotates to between the place-occupying protrusion structure 13 and the first position-limiting protrusion structure 11, it will not be stuck in the groove formed by the two. The place-occupying protrusion structure 13 can perform the position-occupying role well, and the position-limiting buckle 21 can smoothly enter the guide groove 12 under the action of the place-occupying protrusion structure 13.

[0065] According to some optional embodiments, at least two notches 22 are arranged at intervals on the circumferential side wall of the valve bonnet 20. For example, the two notches 22 are symmetrically arranged along the axis of the valve bonnet 20. An elastic arm 23 is arranged in the notch 22, and the limit buckle 21 is arranged on the elastic arm 23, and a deformation gap 24 is defined between the elastic arm 23 and the opposite surface of the side wall of the valve bonnet 20. For example, one end of the elastic arm 23 is connected to the notch 22, and the other end is connected to the limit buckle 21.

[0066] In the above solution, when the valve bonnet 20 is assembled with the valve body 10, the elastic arm 23 can expand and the deformation gap 24 becomes larger, so that the opening of the valve bonnet 20 close to the valve body 10 becomes larger, and it is easier to install it on the valve body 10. After the valve bonnet 20 and the valve body 10 are assembled, under the action of the elastic arm 23, the limit buckle 21 will be kept in the guide groove 12, and the deformation gap 24 will return to the initial state, so that the inner wall of the valve bonnet 20 is in contact with the valve body, ensuring that the valve bonnet 20 is smoothly pressed in the axial direction of the valve body 10.

[0067] A second aspect of the present application provides an endoscope handle, comprising the endoscope suction valve as described above.

[0068] A third aspect of the present application provides an endoscope, comprising the endoscope handle as described above.

[0069] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0070] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An endoscope suction valve, characterized in that: include: A valve body (10), wherein the outer wall of the valve body (10) is provided with a first position-limiting protrusion structure (11), a guide groove (12) is constructed inside the first position-limiting protrusion structure (11), and the guide groove (12) is distributed along the axial direction of the valve body (10); A valve bonnet (20), wherein the valve bonnet (20) has a limit buckle (21), wherein the limit buckle (21) is slidably matched with the guide groove (12) for guiding the valve bonnet (20) to move axially along the valve body (10), and along the circumference of the valve body (10), the first limit protrusion structure (11) is limitedly matched with the limit buckle (21) for stopping the valve bonnet (20).

2. The endoscope suction valve according to claim 1, characterized in that: The outer wall of the valve body (10) is provided with at least two place-occupying protrusion structures (13), and the two place-occupying protrusion structures (13) are respectively located on both sides of the guide groove (12).

3. The endoscope suction valve according to claim 2, characterized in that: The protruding direction of the first position-limiting protruding structure (11) is the same as the protruding direction of the place-occupying protruding structure (13).

4. The endoscope suction valve according to claim 2 or 3, characterized in that: The protruding direction of the first limiting protrusion structure (11) is consistent with the protruding direction of the positioning structure (14) on the outer wall of the valve body (10).

5. The endoscope suction valve according to claim 2, characterized in that: In the axial direction of the valve body (10), the size of the place-occupying protrusion structure (13) is not smaller than the size of the guide groove (12).

6. The endoscope suction valve according to claim 2, characterized in that: A second position-limiting protrusion structure (15) is provided at the proximal end of the valve body (10) along the circumferential direction, and the first position-limiting protrusion structure (11) and the occupying protrusion structure (13) are both located on the same side of the second position-limiting protrusion structure (15), wherein: The top surface of the first limiting protrusion structure (11) is not lower than the outer peripheral surface of the second limiting protrusion structure (15); and / or, The top surface of the place-occupying protrusion structure (13) is not lower than the outer peripheral surface of the second position-limiting protrusion structure (15).

7. The endoscope suction valve according to claim 2, characterized in that: In the circumferential direction of the valve body (10), the dimension between the position-occupying protrusion structure (13) and the first position-limiting protrusion structure (11) adjacent thereto is smaller than the dimension of the position-limiting buckle (21).

8. The endoscope suction valve according to claim 1, wherein: The valve cap (20) is provided with at least two notches (22) at intervals on the circumferential side wall, an elastic arm (23) is provided in the notch (22), the limit buckle (21) is provided on the elastic arm (23), and a deformation gap (24) is defined between the elastic arm (23) and the opposite surface of the side wall of the valve cap (20).

9. An endoscope handle, characterized in that: Comprising an endoscope suction valve as described in any one of claims 1-8.

10. An endoscope, characterized in that: Comprising the endoscope handle as described in claim 9.

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