Endoscope handle

Abstract

The utility model relates to an endoscope handle which comprises a lens module, an optical fiber pressing plate and a lighting module. The optical fiber pressing plate comprises a pressing plate groove body which is fixed on the outer wall of the lens module; the lighting module comprises an optical fiber cable and an optical fiber connecting piece, and the optical fiber cable is arranged in the handle, penetrates through the pressing plate groove body to be connected with one end of the optical fiber connecting piece and extends to the other end; the other end of the optical fiber connecting piece is fixedly connected with the lens module; the optical fiber cable and the optical fiber connecting piece are used for providing incident light for the lens module; through overall arrangement of the interior of the handle, the position relation of the optical fiber cable in the endoscope handle is optimized, and the convenience and the function stability of the endoscope during use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an endoscope handle. Background Art

[0002] With the development of medical technology, endoscopes have gradually become important tools in the fields of medicine, industry, etc. Endoscopes can help workers observe areas that cannot be directly observed, thereby improving the efficiency and accuracy of workers' diagnosis.

[0003] At present, endoscopes usually use optical fiber cables to transmit the illumination light emitted by cold light sources. However, optical fiber cables themselves have poor mechanical strength and cannot be bent excessively. Therefore, endoscopes are often connected to optical cables to provide illumination light sources. However, in actual applications, too many external cables on the endoscope handle bring about problems such as inconvenience in cable management, wiring, and dragging. Utility Model Content

[0004] Based on this, the present application provides an endoscope handle for solving the inconvenience of use caused by the complex external cables of the endoscope, such as the inconvenience of cable management, wiring, and dragging.

[0005] An endoscope handle, comprising:

[0006] Lens module;

[0007] An optical fiber pressing plate, including a pressing plate groove body, is fixed to the outer wall of the lens module;

[0008] A lighting module includes an optical fiber cable and an optical fiber connector, wherein:

[0009] The optical fiber cable is arranged inside the handle, passes through the pressure plate groove, is connected to one end of the optical fiber connector and extends to the other end; the other end of the optical fiber connector is fixedly connected to the lens module, and the optical fiber cable and the optical fiber connector are used to provide incident light to the lens module.

[0010] In one embodiment, the handle includes a housing, and the housing includes a handle middle housing and a handle rear housing;

[0011] A fixing piece is arranged on the inner wall of the handle middle shell, and the fixing piece comprises a fixing groove, a first fixing screw hole and a second fixing screw hole; the fixing groove is used to fix the circuit module;

[0012] The handle rear shell comprises a first screw hole, the first screw hole of the rear shell is fixedly connected with the second screw hole of the fixing member by a first screw, the handle middle shell abuts with the handle rear shell, and the nut of the first screw abuts with the handle rear shell.

[0013] In one of the embodiments, the handle further includes a circuit module, which is electrically connected to the lens module and is used to convert the optical signal transmitted by the lens module into an electrical signal and output it to the display device.

[0014] In one of the embodiments, the circuit module also includes a grounding plate, and the second end of the grounding plate is in contact with the circuit module; a second screw is passed through the first end of the grounding plate, and the second screw is screwed into the first screw hole of the fixing member, so that the first surface of the grounding plate abuts against the fixing member, and the second surface of the grounding plate abuts against the nut of the second screw; the nut of the second screw is a hollow nut, and the grounding wire is connected to the first end of the grounding plate through the nut of the second screw.

[0015] In one embodiment, the lens module includes a collimating lens assembly, the collimating lens assembly including:

[0016] A collimating lens, used to collimate the light introduced into the optical fiber cable;

[0017] A collimator lens clamping ring, a first end of which is attached to the collimator lens; and

[0018] A collimator lens seat, wherein the first end of the collimator lens seat is connected to the second end of the optical fiber connector, and the cavity of the collimator lens seat is used to accommodate the collimator lens and the collimator lens pressure ring.

[0019] In one embodiment, the lens module includes a reflection component, the reflection component includes a stopper and a reflection lens, the stopper includes a first stopper and a second stopper, the first surface of the first stopper abuts against the first surface of the reflection lens, and the second stopper abuts against the second surface of the reflection lens; the stopper limits the reflection lens to reflect incident light at a fixed angle, and the reflection component is connected to the second end of the collimating lens seat.

[0020] In one embodiment, the lens module further includes a magnifying glass assembly, the magnifying glass assembly including:

[0021] A magnifying lens tube, the second end of which is connected to the rod mirror; and used to receive the optical signal transmitted by the rod mirror;

[0022] A magnifying glass spacer, located in the cavity of the magnifying glass barrel, is used to adjust the distance between the lenses of the lens group and adjust the magnification; and

[0023] The lens group is located in the cavity of the magnifying lens barrel and is used to amplify and transmit the collected optical signals.

[0024] In one embodiment, the magnifying glass spacer includes a first spacer and a second spacer, and the lens group includes a first lens and a second lens; the first lens, the first spacer, the second lens and the second spacer are closely arranged in sequence.

[0025] In one of the embodiments, a groove is provided at the second end of the optical fiber connector, and the groove is a V-shaped groove; a screw hole is provided at the first end of the collimator lens seat, and a third screw passes through the screw hole and abuts against the groove, and a nut of the third screw abuts against the collimator lens seat to securely connect the optical fiber connector to the collimator lens seat.

[0026] In one embodiment, a first end of the fiber connector is connected to the optical fiber cable, and a second end of the fiber connector is connected to the lens assembly.

[0027] The above-mentioned endoscope handle limits the routing position of the optical fiber cable by setting an optical fiber pressure plate, thereby preventing the optical fiber cable from shaking inside the handle, affecting the transmission and incident angle of the illumination light, and improving the stability of the illumination function of the endoscope handle. The optical fiber connector bends the optical fiber to 90 degrees losslessly at a small angle and multiple times in the internal cavity, thereby solving the light loss caused by long-term large-angle bending of the optical fiber cable and avoiding the possibility of damage to the optical fiber cable caused by the inner wall corners. The multi-corner cavity can effectively alleviate the angle and reduce light loss. By arranging the lens module, lighting module and circuit module as a whole, the overall volume of the endoscope handle is reduced, the orderliness of the internal arrangement of the endoscope handle is improved, and the positional relationship of the optical fiber cable inside the endoscope handle is optimized, thereby improving the convenience of using the endoscope and the stability of its function. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are 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 creative work.

[0029] FIG1 is a schematic diagram of the structure inside the endoscope handle in one embodiment of the utility model;

[0030] FIG2 is a schematic diagram of an endoscope handle housing in an embodiment of the present invention;

[0031] FIG3 is a schematic diagram of a handle middle shell and components in a handle middle shell cavity in an embodiment of the present invention;

[0032] FIG4 is a cross-sectional schematic diagram of a collimating lens assembly and an illumination module in an embodiment of the present utility model;

[0033] FIG. 5 is a schematic diagram of a lens module in an embodiment of the present invention.

[0034] The reference numerals in the specific implementation manner are as follows:

[0035] 10. lens module; 20. optical fiber pressing plate; 30. lighting module; 40. circuit module;

[0036] 102, collimating lens seat; 104, third screw hole; 106, magnifying lens assembly; 108, collimating lens assembly;

[0037] 202, grounding plate; 204, grounding wire;

[0038] 302, optical fiber cable; 304, optical fiber connector; 306, groove;

[0039] 502, handle front shell; 504, handle middle shell; 506, handle back shell; 508, mirror sheath. DETAILED DESCRIPTION

[0040] The following is a detailed description of the embodiments of the technical solution of the present application in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] 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 utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] 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 connection; it can be a mechanical connection or an electrical connection; 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.

[0045] In the present utility model, 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.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0047] Please refer to FIG. 1 , which shows a schematic diagram of the interior of an endoscope handle in an embodiment of the present invention. The endoscope handle provided in an embodiment of the present invention includes: a lens module 10 , an optical fiber pressure plate 20 and a lighting module 30 .

[0048] The lighting module 30 includes an optical fiber cable 302 and an optical fiber connector 304. The optical fiber cable is arranged inside the handle. The optical fiber cable 302 enters the handle from the tail of the handle, passes through the pressing plate groove of the optical fiber pressing plate 20, and connects with the optical fiber connector 304 to guide the light emitted by the light source into the lens module 10. The middle end of the optical fiber pressing plate 20 is a pressing plate groove, and both sides of the optical fiber pressing plate 20 are fixedly connected to the lens module 10. Optionally, the fixed connection method is screw fixing or riveting.

[0049] The optical fiber cable 302 passes through the interior of the optical fiber connector 304 and passes through the other side. The interior of the optical fiber connector 304 includes a cavity configured with multiple corners, so that the optical fiber cable 302 is bent 90 degrees at a small angle and multiple times, so that the optical fiber cable 302 can guide the light emitted by the light source into the lens module 10. The second end of the optical fiber connector 304 is connected to the lens module 10. After the optical fiber cable 302 is bent 90 degrees in the optical fiber connector 304, the illumination light emitted by the transmitted light source is also bent 90 degrees and enters the lens module 10 to provide illumination light for the endoscope.

[0050] In this embodiment, by setting the optical fiber pressure plate 20, the routing position of the optical fiber cable 302 is limited, which prevents the optical fiber cable 302 from shaking inside the handle, affecting the transmission and incident angle of the illumination light, and improving the stability of the lighting function of the endoscope handle. The optical fiber connector 304 uses the multi-corner cavity inside it to bend the optical fiber to 90 degrees without loss, which solves the light loss caused by the long-term large-angle bending of the optical fiber cable 302, and also avoids the damage to the optical fiber caused by the inner wall corner. The multi-corner cavity can effectively alleviate the angle and reduce light loss. By arranging the lens module 10 and the lighting module 30 as a whole, the overall volume of the endoscope handle is reduced, the orderliness of the internal arrangement of the endoscope handle is improved, and the position relationship of the optical fiber cable 302 inside the endoscope handle is optimized, which improves the convenience of using the endoscope and the stability of the function.

[0051] The embodiment of the present application is described in conjunction with FIG. 2 and FIG. 3 . FIG. 2 shows a schematic diagram of an endoscope handle housing in an embodiment of the present utility model, and FIG. 3 shows a schematic diagram of a handle middle shell in an embodiment of the present utility model. In some embodiments, the handle includes a shell, and the shell includes a handle middle shell 504 and a handle rear shell 506; a fixing member is arranged on the inner wall of the handle middle shell 504, and the fixing member is arranged on the inner wall of the second end of the handle middle shell 504, and the fixing member includes a first fixing member and a second fixing member, and the first fixing member and the second fixing member are respectively located on both sides of the second end of the handle middle shell 504. Exemplarily, the first fixing member includes a fixing groove, a fixing member first screw hole, and a fixing member second screw hole. The two ends of the circuit board in the circuit module 40 are respectively connected to the fixing grooves in the first fixing member and the second fixing member, and the circuit module 40 is fixed in the handle middle shell 504, so that the circuit module 40 is fixed in the middle, and space is left at the upper and lower ends of the handle middle shell 504.

[0052] The handle rear shell 506 includes a rear shell first screw hole, through which the handle middle shell 504 and the handle rear shell 506 are abutted. Exemplarily, the second screw hole of the first fixing member is fixedly connected to the first screw hole of the rear shell by a first screw, the handle middle shell 504 abuts against the handle rear shell 506, the nut of the first screw abuts against the handle rear shell 506, and the second fixing member fixes the handle middle shell 504 and the handle rear shell 506 in the same way.

[0053] The endoscope handle shell also includes a handle front shell 502 and a handle sheath, the second end of the handle front shell 502 abuts against the first end of the handle middle shell 504, the first end of the handle front shell 502 is connected to the mirror sheath 508, and a lens module 10 is arranged in the handle front shell 502; the handle sheath is connected to the handle rear shell 506, and is used to gather the optical fiber cable 302, the electrical signal cable and the ground wire 204 into the endoscope handle.

[0054] In this embodiment, a fixing piece is provided in the handle middle shell 504 to fix the circuit module 40 in the middle, so that there is space between the upper and lower parts of the handle middle shell 504, which provides a reserved space for the optical fiber cable 302 to be routed from the inside of the handle, thereby preventing the optical fiber cable 302 from directly contacting the circuit module 40 and affecting the transmission of the illumination light. The optical fiber cable 302, the electrical signal cable and the grounding wire 204 are bundled into the inside of the handle by the handle sheath, further limiting the routing of the optical fiber cable 302 inside the handle, and effectively ensuring the stability of the internal structure of the handle and the transmission quality of the illumination light.

[0055] Please continue to refer to FIG. 3 . In some embodiments, the endoscope handle further includes a circuit module and a grounding plate.

[0056] The grounding plate 202 is a metal plate used to connect electrical equipment so as to ground the equipment and eliminate static electricity or electromagnetic interference, and is usually used in electronic equipment, communication equipment and electrical equipment.

[0057] The circuit module is electrically connected to the magnifying glass assembly 106, and is used to convert the optical signal transmitted by the magnifying glass assembly 106 into an electrical signal, and output it to the display device; the second end of the grounding plate 202 is in contact with the circuit module 40; the second screw passes through the first end of the grounding plate 202, and the second screw is screwed into the first screw hole of the fixing member. Exemplarily, the first end of the grounding plate 202 is annular, the second screw passes through the first end of the grounding plate 202, and the screw is screwed into the first screw hole of the fixing member, so that the first surface of the grounding plate 202 abuts against the fixing member, and the second surface of the grounding plate 202 abuts against the nut of the second screw, so that the grounding plate 202 has good contact with the fixing member and the circuit module 40; the nut of the second screw is a hollow nut, and the grounding wire 204 is connected to the first end of the grounding plate 202 through the nut of the second screw.

[0058] In this embodiment, the grounding sheet 202 is fixed to the fixing member of the handle middle shell 504, so that the grounding sheet 202 can be in good contact with the handle middle shell 504, and the static electricity and other electrical interference generated by the circuit module 40 and the handle shell are guided out, thereby improving the safety and stability of the endoscope when in use. By first fixing the grounding sheet 202 and then connecting the grounding wire 204 to the grounding sheet 202, the problem of being unable to ground the metal handle shell by directly grounding the grounding wire 204 is avoided, and there is no need to connect the grounding wire 204 to the circuit module 40, thereby improving the controllability of the wiring inside the handle.

[0059] Please refer to Figure 4, which shows a schematic diagram of a collimating lens assembly and an illumination module in an embodiment of the utility model. In some embodiments, the collimating lens assembly 108 includes a collimating lens, a collimating lens pressure ring, and a collimating lens seat 102; the collimating lens is used to collimate the light introduced by the optical fiber cable 302 to provide high-quality illumination light for the endoscope, and the collimating lens can convert the light from each point in the aperture column into a parallel collimated light column; the first end of the collimating lens pressure ring is attached to the collimating lens, and there is an empty area between the second end of the collimating lens pressure ring and the second end of the optical fiber connector 304; the cavity of the collimating lens seat 102 is used to accommodate the collimating lens and the collimating lens pressure ring.

[0060] The first end of the collimator base 102 is provided with a third screw hole 104, and the second end of the optical fiber connector 304 is provided with a groove 306, and optionally, the groove 306 is a V-shaped groove; the collimator base 102 is connected to the second end of the optical fiber connector 304, and the third screw hole 104 of the collimator base 102 is aligned with the groove 306 of the optical fiber connector, so that the third screw passes through the screw hole and abuts against the groove 306, and the nut of the third screw abuts against the collimator base 102, and the optical fiber connector 304 is fixedly connected to the collimator base 102, and because the optical fiber connector can be made of a material with a certain elasticity (such as plastic containing a certain rubber component), the third screw squeezes the groove 306 to form a certain squeezing toward the inner wall, and the optical fiber cable 302 in the optical fiber connector 304 is further fixed in position. Optionally, the collimator base 102 is provided with a plurality of third screw holes 104, and the optical fiber connector and the collimator base 102 are fixedly connected by a plurality of screws to improve the stability of the connection.

[0061] In this embodiment, the illumination light introduced by the optical fiber cable 302 is collimated by the collimating lens, so that the endoscope can obtain a stable illumination light source; the collimating lens pressure ring limits the position of the collimating lens, and a vacant area is provided in the optical fiber connector 304 to avoid damage to the collimating lens during installation and removal. The screw hole of the collimating lens seat 102 is used in conjunction with the groove 306 of the optical fiber connector 304 to fix the collimating lens assembly 108 and the illumination module 30, thereby improving the stability of the illumination light input.

[0062] In some embodiments, the lens module 10 further includes a reflection component, the reflection component includes a stopper and a reflection lens, the stopper includes a first stopper and a second stopper, the first surface of the first stopper abuts against the first surface of the reflection lens, and the first surface of the second stopper abuts against the second surface of the reflection lens; the stopper limits the reflection lens to reflect the incident light at a fixed angle. The second surface of the second stopper is connected to the second end of the collimator lens seat 102, and the third surface of the second stopper is connected to the mirror sheath 508; the second surface of the first stopper, the second surface of the second stopper, and the third surface of the second stopper are provided with openings for transmitting and receiving illumination light and optical signals.

[0063] In this embodiment, the angle of the reflective lens is fixed by a limiter so that the illumination light processed by the collimating lens enters the endoscope through the reflective lens, providing illumination light for the endoscope, thereby avoiding a decrease in the efficiency of the endoscope receiving light signals and reflecting illumination light due to the reflective lens not being fixed.

[0064] Please refer to FIG5, which shows a schematic diagram of a lens module in an embodiment of the utility model. In some embodiments, the lens module further includes a magnifying glass assembly 106, which is used to transmit and amplify the optical signal collected by the endoscope. The magnifying glass assembly 106 includes a magnifying lens barrel, a magnifying glass spacer, and a lens group; the second end of the magnifying lens barrel is connected to the rod mirror; it is used to receive the optical signal transmitted by the rod mirror; the magnifying glass spacer is located in the cavity of the magnifying lens barrel, and is used to adjust the lens distance of the lens group and adjust the magnification; the lens group is located in the cavity of the magnifying lens barrel, and is used to amplify and transmit the collected optical signal. The magnifying glass spacer includes a first spacer and a second spacer, and the lens group includes a first lens and a second lens; the first lens, the first spacer, the second lens, and the second spacer are arranged closely in sequence, and a vacant area is set in the lens group and the rod mirror in the magnifying lens barrel.

[0065] In this embodiment, the magnifying glass assembly receives and amplifies the optical signal transmitted by the rod mirror, thereby improving the transmission quality of the optical signal; by providing a lens spacer, the first lens and the second lens of the lens group are prevented from being damaged, thereby improving the use effect and imaging quality of the endoscope handle.

[0066] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An endoscope handle, characterized in that: The endoscope handle comprises: Lens module; An optical fiber pressing plate, including a pressing plate groove body, fixed to the outer wall of the lens module; A lighting module includes an optical fiber cable and an optical fiber connector, wherein: The optical fiber cable is arranged inside the handle, passes through the pressure plate groove body and is connected to one end of the optical fiber connector and extends to the other end; the other end of the optical fiber connector is fixedly connected to the lens module, and the optical fiber cable and the optical fiber connector are used to provide incident light to the lens module.

2. The handle according to claim 1, characterized in that: The handle comprises a shell, and the shell comprises a handle middle shell and a handle rear shell; A fixing piece is arranged on the inner wall of the handle middle shell, and the fixing piece comprises a fixing groove, a first fixing screw hole and a second fixing screw hole; the fixing groove is used to fix the circuit module; The handle rear shell comprises a first screw hole, the first screw hole of the rear shell is fixedly connected to the second screw hole of the fixing member by a first screw, the handle middle shell abuts against the handle rear shell, and the nut of the first screw abuts against the handle rear shell.

3. The handle according to claim 1, characterized in that: The handle further comprises a circuit module, which is electrically connected to the lens module and is used for converting the optical signal transmitted by the lens module into an electrical signal and outputting the electrical signal to the display device.

4. The handle according to claim 3, characterized in that: The circuit module also includes a grounding plate, and the second end of the grounding plate is connected to the circuit module; a second screw is passed through the first end of the grounding plate, and the second screw is screwed into the first screw hole of the fixing member, so that the first surface of the grounding plate abuts against the fixing member, and the second surface of the grounding plate abuts against the nut of the second screw; the nut of the second screw is a hollow nut, and the grounding wire is connected to the first end of the grounding plate through the nut of the second screw.

5. The handle according to claim 1, characterized in that: The lens module includes a collimating lens assembly, and the collimating lens assembly includes: A collimating lens, used for collimating the light introduced by the optical fiber cable; A collimator lens pressing ring, a first end of which is attached to the collimator lens; and A collimator lens seat, wherein the first end of the collimator lens seat is connected to the second end of the connector, and the cavity of the collimator lens seat is used to accommodate the collimator lens and the collimator lens pressure ring.

6. The handle according to claim 1, characterized in that: The lens module includes a reflection component, which includes a stopper and a reflection lens. The stopper includes a first stopper and a second stopper, wherein the first surface of the first stopper abuts against the first surface of the reflection lens, and the second stopper abuts against the second surface of the reflection lens; the stopper limits the reflection lens to reflect incident light at a fixed angle, and the reflection component is connected to the second end of the collimating lens seat.

7. The handle according to claim 1, characterized in that: The lens module also includes a magnifying glass assembly, and the magnifying glass assembly includes: A magnifying lens barrel, the second end of which is connected to the rod mirror; and used to receive the optical signal transmitted by the rod mirror; A magnifying glass spacer, located in the cavity of the magnifying glass barrel, for adjusting the distance between the lenses of the lens group and adjusting the magnification; and The lens group is located in the cavity of the magnifying lens barrel and is used to amplify and transmit the collected optical signals.

8. The handle according to claim 7, characterized in that: The magnifying glass spacer includes a first spacer and a second spacer, and the lens group includes a first lens and a second lens; the first lens, the first spacer, the second lens and the second spacer are closely arranged in sequence.

9. The handle according to claim 1, characterized in that: A groove is set at the second end of the optical fiber connector, and the groove is a V-shaped groove; a screw hole is set at the first end of the collimator seat, and the third screw passes through the screw hole and abuts against the groove, and the nut of the third screw abuts against the collimator seat to fix the optical fiber connector to the collimator seat.

10. The handle according to claim 1, characterized in that The first end of the optical fiber connector is connected to the optical fiber cable, and the second end of the optical fiber connector is connected to the lens assembly.

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