Endoscope body handle shell sealing waterproof structure and endoscope handle

Abstract

The utility model relates to the field of machinery, and discloses an endoscope body handle shell sealing waterproof structure and an endoscope handle, the endoscope body handle shell sealing waterproof structure comprises an upper shell, the lower side of the upper shell is provided with a connecting part, the periphery of the connecting part is provided with a sealing ring, and the connecting part and the sealing ring are of an integrated structure. The device is simple in structure, few in used parts, convenient to process, high in efficiency, convenient to maintain, disassemble and assemble, and not easy to damage; the waterproof sealing effect is relatively high, and the waterproof reliability and stability are relatively excellent.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to an endoscope body handle shell sealing and waterproof structure and an endoscope handle. Background Art

[0002] When designing the handle structure of the endoscope, a sealed and waterproof structure is required to prevent liquid from entering the endoscope during cleaning and disinfection, corroding internal components and causing short circuits on the circuit board, thus causing damage to the endoscope. Figure 1 As shown, in the prior art, the endoscope housing is assembled by the upper shell 10, the lower shell 20, and the soft rubber sealing ring 10b. After the upper shell 10 and the lower shell 20 are assembled, the soft rubber sealing ring 10b is squeezed to play a role of sealing and waterproofing. During installation, the soft rubber sealing ring 10b must be placed in a groove to ensure its stability. The upper shell 10 and the lower shell 20 are both injection molded, and the actual volume is very small. It is very complicated to make a groove mold at the edge of the upper shell 10. That is, the prior art does not adopt the method of setting a groove to place the soft rubber sealing ring 10b, but uses a pressing sheet 30 to press the soft rubber sealing ring 10b, and generally fixes the soft rubber sealing ring 10b by hot melting or snapping to prevent it from falling out.

[0003] However, the form of the pressing piece 30 requires many parts. During the processing, the molding accuracy of the pressing piece 30 is required to be high, the assembly process is complex, and the assembly and disassembly are relatively complicated. At the same time, the soft rubber sealing ring 10b is also easy to fall off. Therefore, technical personnel in this field are committed to developing an endoscope body handle shell sealing and waterproof structure and an endoscope handle with a simple structure and easy assembly and disassembly. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide an endoscope body handle shell sealing and waterproof structure and an endoscope handle which are simple in structure and easy to assemble and disassemble.

[0005] To achieve the above purpose, the utility model provides an endoscope handle housing sealing and waterproof structure, including an upper housing, a connecting portion is provided on the lower side of the upper housing, a sealing ring is provided on the outer periphery of the connecting portion, and the connecting portion and the sealing ring are an integral structure. The integral structure of the connecting portion and the sealing ring actually makes the upper housing and the sealing ring an integral structure. In this way, the use of a pressing sheet can be omitted, and the overall structure is simpler, and the connection between the sealing ring and the upper housing is more stable.

[0006] Preferably, the upper housing is placed in a mold of the sealing ring for injection molding, so that the connecting portion and the sealing ring are an integrated structure. By means of integrated injection molding, the sealing ring is integrally molded with the upper housing in a mold at high temperature and high pressure, thereby forming an integrated structure, so that the two can be tightly combined and will not loosen.

[0007] Preferably, the sealing ring comprises an annular main body, on which at least one protrusion is provided in the peripheral direction, and the cross section of the protrusion is semi-elliptical or semi-circular, so as to facilitate squeezing a larger volume and ensure the long-term sealing and waterproofing. The annular main body is the main part of the sealing ring of the present invention, which is annular and has a rectangular cross section. Generally, ordinary sealing rings have this structure.

[0008] Preferably, there are two protrusions arranged vertically, which can increase its service life and waterproof performance.

[0009] Preferably, the sealing ring comprises an annular main body, and at least one protrusion is provided on the annular main body in the peripheral direction, and the cross section of the protrusion is triangular.

[0010] Preferably, the outer periphery of the sealing ring is provided with an upward extension, and the extension is inclined so that the height of the extension gradually decreases from the outer periphery to the center of the sealing ring. When the cleaning tank is used for cleaning and disinfection, the external water pressure will squeeze the sealing ring, especially the extension, so that the sealing ring as a whole is pressed tighter and the seal is more reliable. In addition, the extension is arranged so that when the upper shell and the lower shell are installed, the extension is inclined and is more easily squeezed, so when the upper shell and the lower shell are buckled, it is easier to install.

[0011] Preferably, it also includes a lower shell that is buckled on the outer side of the sealing ring and matches the upper shell. The upper shell and the lower shell are assembled together, and the sealing ring is squeezed therein, thereby preventing water or other liquids from rising into the lower shell and the interior of the lower shell.

[0012] The utility model also provides an endoscope handle, comprising the endoscope body handle shell sealing and waterproof structure as described above.

[0013] The beneficial effects of the utility model are as follows: the utility model has a simple structure, uses fewer parts, is easy to process and has high efficiency, is convenient to repair and disassemble, and is not easy to damage; it has a higher waterproof sealing effect, and has excellent waterproof reliability and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the sealing and waterproof structure of the endoscope body handle shell in the prior art.

[0015] Figure 2 It is a schematic cross-sectional structural diagram of Example 1.

[0016] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0017] Figure 4 It is a schematic cross-sectional view of the second embodiment.

[0018] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0019] Figure 6 It is a schematic cross-sectional view of the structure of Example 3.

[0020] Figure 7 yes Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0021] Figure 8 It is a schematic cross-sectional view of the fourth embodiment.

[0022] Fig. 9 yes Figure 4 Schematic diagram of the enlarged structure at D in the middle. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which 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 direction, be constructed and operated in a specific manner, and therefore cannot be understood as a limitation on the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] Example 1

[0025] like Figure 2 and Figure 3 As shown, a sealing and waterproof structure of an endoscope handle housing includes an upper housing 1, a connecting portion 11 is provided on the lower side of the upper housing 1, a sealing ring 2 is provided on the outer periphery of the connecting portion 11, the connecting portion 11 and the sealing ring 2 are an integral structure, and a lower housing 3 is buckled on the outer side of the sealing ring 2 to cooperate with the upper housing 1. In this embodiment, the connecting portion 11 is a protruding block extending downward from the top of the upper housing 1, and the connecting portion 11 can be integrally formed with the upper housing 1, so that the upper housing 1 and the sealing ring 2 are an integral structure.

[0026] In this embodiment, the upper housing 1 is placed in the mold of the sealing ring 2 for injection molding, so that the connecting portion 11 and the sealing ring 2 are an integral structure. When the present invention is implemented, the injection mold of the sealing ring in the prior art will be modified accordingly, and a placing table for placing the upper housing is processed on the original sealing ring injection mold. The placing table also has a positioning function. The upper housing is placed on the placing table (the placing table is located in the injection molding cavity as a whole), so that the upper housing 1 and the sealing ring 2 are injection molded into an integral structure.

[0027] The sealing ring 2 includes an annular body, on which a protrusion 21 is provided in the peripheral direction. The cross section of the protrusion 21 is semi-elliptical. In order to enhance the sealing effect, in this embodiment, there are two protrusions 21 arranged up and down.

[0028] In this embodiment, the upper shell 1 is integrally formed by injection molding, and when the sealing ring 2 is assembled, it is actually a second injection molding, which can save the use of a pressing sheet and there is no need to change the original upper shell injection mold structure, thereby ensuring the reliability and stability of the sealing and waterproofing of the endoscope body handle shell, facilitating maintenance and disassembly, and not being easy to damage, while reducing material costs and assembly costs.

[0029] Example 2

[0030] like Figure 4 and Figure 5 As shown, the structure of Example 2 is substantially the same as that of Example 1, except that the cross section of the protrusion 21 is semicircular and the number of the protrusion 21 is one.

[0031] Example 3

[0032] like Figure 6 and Figure 7 As shown, the structure of the embodiment 3 is substantially the same as that of the embodiment 1, except that the cross section of the protrusion 21 is two triangles.

[0033] Example 4

[0034] like Figure 8 and Fig. 9 As shown, the structure of embodiment 4 is basically the same as that of embodiment 1, except that an upward extension 22 is arranged on the outer periphery of the sealing ring 2, and the extension 22 is arranged obliquely. Compared with ordinary sealing rings, the sealing ring 2 of this embodiment has extremely high waterproofness.

[0035] The utility model also provides an endoscope handle, comprising the endoscope body handle shell sealing and waterproof structure as described above.

[0036] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A sealing and waterproof structure for an endoscope handle housing, characterized in that: It comprises an upper shell (1), a connecting portion (11) is provided on the lower side of the upper shell (1), a sealing ring (2) is provided on the outer periphery of the connecting portion (11), and the connecting portion (11) and the sealing ring (2) are an integral structure.

2. The sealing and waterproof structure of the endoscope body handle shell according to claim 1, characterized in that: The upper housing (1) is placed in a mold of the sealing ring (2) for injection molding, so that the connecting portion (11) and the sealing ring (2) form an integrated structure.

3. The sealing and waterproof structure of the endoscope body handle shell according to claim 1, characterized in that: The sealing ring (2) comprises an annular main body, on which at least one protrusion (21) is provided in the peripheral direction, and the cross section of the protrusion (21) is semi-elliptical or semi-circular.

4. The sealing and waterproof structure of the endoscope body handle shell according to claim 3, characterized in that: The number of the protrusions (21) is two and they are arranged up and down.

5. The endoscope body handle housing sealing and waterproof structure according to claim 1, characterized in that: The sealing ring (2) comprises an annular main body, on which at least one protrusion (21) is provided in the peripheral direction, and the cross section of the protrusion (21) is triangular.

6. The sealing and waterproof structure of the endoscope body handle shell according to claim 1, characterized in that: An upwardly extending portion (22) is arranged on the outer periphery of the sealing ring (2), and the extending portion (22) is arranged at an incline.

7. The endoscope handle housing sealing and waterproof structure according to claim 1, characterized in that: It also comprises a lower shell (3) which is buckled on the outer side of the sealing ring (2) and matches with the upper shell (1).

8. An endoscope handle, characterized in that: It comprises a sealing and waterproof structure for the outer shell of an endoscope body handle as described in any one of claims 1 to 7.

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