A rigid scope tip

Abstract

The utility model discloses a kind of hard mirror type front end, including cylindrical shell, the rear hole of being extended from the rear end along the axial direction of the shell to middle part is opened in the shell, and the entity part located in the front part of the shell is formed;The upper part of the entity part is provided with the lens module channel of being penetrated along the axial direction of the shell, the lower part of the entity part is provided with the working channel of being penetrated along the axial direction of the shell;The lower part of the entity part is coaxially provided with instrument pipe channel along with the working channel, the cross section of the working channel and instrument pipe channel is circular, and the diameter of the cross section of the instrument pipe channel is greater than the diameter of the cross section of the working channel;Barrier is laterally arranged between the lens module channel and working channel.The beneficial effects of the utility model are that: structure setting makes it can satisfy the design requirement of lens module channel and instrument pipe channel;Lens module channel and instrument pipe channel design barrier in the middle, can more greatly increase the strength of front end.

Description

Technical Field

[0001] This utility model relates to a front end head, and more particularly to a hard mirror type front end head. Background Technology

[0002] The endoscope's head, also known as the tip, is the head structure of the endoscope. It houses the camera and LEDs, and has a pre-installed working channel. A metal connecting tube connects to the rear, hence the name "rigid endoscope." To meet design requirements, the endoscope's outer diameter should be as small as possible, while the working channel should be as large as possible, but the overall structure must also have sufficient strength to avoid excessively thin areas that could affect its normal use. Therefore, the industry meticulously designs the layout of the camera, LEDs, and working channel to meet these requirements. Utility Model Content

[0003] The purpose of this utility model is to provide a hard mirror-type front end head that solves or partially solves the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A rigid lens front end includes a cylindrical housing with a front end and a rear end. A rear hole extending axially from the rear end towards the center of the housing forms a solid portion at the front of the housing. A through-hole lens module channel is provided on the upper part of the solid portion along the axial direction of the housing, and a through-hole working channel is provided on the lower part of the solid portion along the axial direction of the housing. An instrument tube channel is coaxially arranged on the lower part of the solid portion with the working channel. Both the working channel and the instrument tube channel have circular cross-sections, with the diameter of the instrument tube channel's cross-section being larger than the diameter of the working channel's cross-section. A baffle is laterally arranged between the lens module channel and the working channel, extending from the solid portion towards the rear end. Arc-shaped side limiting plates are provided on both sides of the baffle extending upwards along the inner wall of the housing. An arc-shaped lower limiting plate extending from the solid portion towards the rear end is provided at the bottom of the housing.

[0006] Preferably, the solid portion has two LED channels arranged along the axial direction of the housing, and the two LED channels are symmetrically arranged on both sides of the lens module channel.

[0007] Preferably, the LED channel is connected to the lens module channel.

[0008] Preferably, the depth of the rear hole is 1 / 2 of the length of the housing.

[0009] Preferably, the lower limiting plate includes a circular upper arc surface, which is coaxial with the instrument tube channel and has the same diameter.

[0010] Preferably, the solid part is provided with two weight-reducing holes, which are located on both sides of the instrument tube channel.

[0011] Preferably, the side limiting plate and the lower limiting plate are used to fix the metal tube.

[0012] Preferably, the cross-section of the lens module channel is square.

[0013] The beneficial effects of this utility model are: the structural design allows it to meet the design requirements of the lens module channel and the instrument tube channel; the design of a retaining wall between the lens module channel and the instrument tube channel can increase the strength of the front end to a greater extent. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 4 This is a side view of the structure of this utility model. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0019] In the description of this utility model, it should be noted that the terms "inner", "outer", "upper", "lower", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] like Figures 1 to 4 As shown, the rigid lens front end of this utility model includes a cylindrical housing 10, which includes a front end 12 and a rear end 14. A rear hole 16 is formed on the housing 10, extending axially from the rear end 14 towards the center of the housing 10, forming a solid portion 18 at the front of the housing 10; the depth of the rear hole 16 is half the length of the housing 10. A through lens module channel 20 is provided on the upper part of the solid portion 18 along the axial direction of the housing 10, and the cross-section of the lens module channel 20 is square.

[0021] A through-hole working channel 22 is provided on the lower part of the solid portion 18 along the axial direction of the housing 10. The working channel 22 has a circular cross-section. An instrument tube channel 24 is provided on the lower part of the solid portion 18 along the same axis as the working channel 22. The instrument tube channel 24 is used to receive the instrument tube during assembly. The instrument tube channel 24 also has a circular cross-section, and the diameter of the instrument tube channel 24 is larger than the diameter of the working channel 22. This structure forms a stepped structure on the solid portion 18 to limit the movement of the instrument tube.

[0022] A baffle 26 is laterally arranged between the lens module channel 20 and the working channel 22. The baffle 26 extends from the solid part 18 to the rear end 14 to separate the lens module channel 20 and the working channel 22. Arc-shaped side limiting plates 28 are provided on both sides of the baffle 26, extending upward along the inner wall of the housing 10. An arc-shaped lower limiting plate 30 extending from the solid part 18 to the rear end 14 is provided at the bottom of the housing 10. The baffle 26 separates the lens module channel 20 and the working channel 22 and also increases the overall strength of the housing 10.

[0023] Two LED channels 32 are provided on the main body 18 along the axial direction of the housing 10, and the two LED channels 32 are symmetrically arranged on both sides of the lens module channel 20. The LED channels 32 are used to house LED lights to provide illumination for the endoscope.

[0024] LED channel 32 connects to lens module channel 20. There is no physical gap between LED channel 32 and lens module channel 20, which avoids an excessively thin structure and also increases internal space.

[0025] The lower limit plate 30 includes a circular upper arc surface 34, which is coaxial with the instrument tube channel 24 and has the same diameter.

[0026] Two weight-reducing holes 36 are provided on the solid part 18, and the weight-reducing holes 36 are symmetrically arranged on both sides of the instrument tube channel 24. The shape of the weight-reducing holes 36 follows the shape of the solid part 18, so as to reduce the overall weight as much as possible while ensuring strength.

[0027] The side limiting plate 28 and the lower limiting plate 30 are used to fix the metal tube with glue, and it cannot be reversed, hence it is called a rigid tube.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A rigid lens-type front end, comprising a cylindrical housing, the housing including a front end and a rear end; characterized in that: The housing has a rear hole extending from the rear end along the axial direction of the housing towards the center, forming a solid part located at the front of the housing; a through lens module channel is provided on the upper part of the solid part along the axial direction of the housing, and a through working channel is provided on the lower part of the solid part along the axial direction of the housing; an instrument tube channel is provided on the lower part of the solid part coaxially with the working channel, and both the working channel and the instrument tube channel have circular cross-sections, with the diameter of the instrument tube channel's cross-section being larger than the diameter of the working channel's cross-section; a baffle is provided laterally between the lens module channel and the working channel, extending from the solid part towards the rear end; arc-shaped side limiting plates are provided on both sides of the baffle extending upward along the inner wall of the housing; an arc-shaped lower limiting plate is provided at the bottom of the housing extending from the solid part towards the rear end.

2. The rigid lens-type front end head according to claim 1, characterized in that, Two LED channels are provided on the solid part along the axial direction of the housing, and the two LED channels are symmetrically arranged on both sides of the lens module channel.

3. The rigid lens-type front end head according to claim 2, characterized in that, The LED channel is connected to the lens module channel.

4. The rigid lens-type front end head according to claim 1, characterized in that, The depth of the rear hole is half the length of the housing.

5. A rigid lens-type front end head according to claim 1, characterized in that, The lower limiting plate includes a circular upper arc surface, which is coaxial with the instrument tube channel and has the same diameter.

6. The rigid lens-type front end head according to claim 1, characterized in that, The solid part is provided with two weight-reducing holes, which are located on both sides of the instrument tube channel.

7. A rigid lens-type front end head according to claim 1, characterized in that, The side limiting plate and the lower limiting plate are used to fix the metal tube.

8. A rigid lens-type front end head according to claim 1, characterized in that, The cross-section of the lens module channel is square.

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