CN220158201U - Endoscope with a lens - Google Patents

Abstract

The utility model discloses an endoscope, which comprises a lens module, a main board, an inner shielding cover set and an outer shielding cover set, wherein the lens module is provided with an output line; the output line is electrically connected with the main board; the lens module and the main board are both arranged in the inner shielding cover group; the outer shielding cover group is sleeved outside the inner shielding cover group and is arranged at intervals with the inner shielding cover group. According to the technical scheme, the lens module and the main board are arranged in the inner shielding cover group, the outer shielding cover group is sleeved outside the inner shielding cover group, and the outer shielding cover group and the inner shielding cover group are spaced, so that the lens module and the main board in the endoscope can obtain double electromagnetic shielding effects, the lens module and the main board are ensured to have more stable working states, the risk of interference in image transmission is reduced, the display device can display accurate pictures, and the stability and the safety of the endoscope in use are improved.

Description

Endoscope with a lens

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an endoscope.

Background

The endoscope places the front end of human body insertion portion in with the camera module, and the camera module has the circuit board, and this circuit board is used for being connected with the mainboard electricity in the endoscope, and the circuit board in the camera module and the electronic device on the mainboard receive external electromagnetic interference very easily, and then lead to image transmission to receive the interference for display device can appear showing the unusual condition of image.

Disclosure of Invention

The main object of the present utility model is to propose an endoscope aimed at improving the problem of susceptibility of the electronics in the endoscope to electromagnetic interference.

In order to achieve the above object, the endoscope provided by the present utility model comprises a lens module, a main board, an inner shielding cover set and an outer shielding cover set, wherein the lens module is provided with an output line; the output line is electrically connected with the main board; the lens module and the main board are both arranged in the inner shielding cover group; the outer shielding cover group is sleeved outside the inner shielding cover group and is arranged at intervals with the inner shielding cover group.

In one example, the inner set of shields includes:

the lens module is arranged in the lens seat assembly, and one end of the output line extends out of the lens seat assembly;

the output line penetrates from one end of the inner tube and passes through the other end of the inner tube; and

and the main board shielding shell assembly is covered outside the main board and is connected with one end of the inner tube, which is far away from the lens seat assembly.

In one example, the lens mount assembly includes:

the lens module comprises a lens seat body and an image sensor circuit board, wherein the lens body is arranged in the lens seat body and is provided with an opening towards the rear end; and

the lens seat cover is connected to the rear end of the lens seat body in a sealing mode, the image sensor circuit board is arranged in the lens seat cover, and one end of the inner tube is connected with the lens seat cover.

In one example, the motherboard shield shell assembly includes:

the main board is fixedly arranged on the bracket assembly, and the bracket assembly is connected with one end of the inner tube, which is far away from the lens seat assembly; and

the shielding cover body covers the support assembly, and the main board is located in a cavity formed by enclosing the shielding cover body and the support assembly.

In an example, the bracket assembly comprises a bracket body and a fastening ring, wherein the bracket body is provided with a mounting hole and an avoidance groove communicated with the mounting hole, and the fastening ring is arranged in the avoidance groove; one end of the inner tube, which is far away from the lens seat assembly, is sleeved with a flange ring, and the flange ring penetrates through the mounting hole and stretches into the avoidance groove to be connected with the fastening ring.

In an example, the fastening ring is clamped between the flange ring and the side wall of the avoidance groove, and is in threaded connection with the flange ring.

In one example, the set of outer shields includes:

the outer tube assembly is sleeved outside the lens seat assembly and at least part of the inner tube, and a space is reserved between the outer tube assembly and the lens seat assembly and between the outer tube assembly and the inner tube; and

the handle sleeve is axially connected to one end of the outer tube assembly and sleeved outside the main board shielding shell assembly.

In one example, the outer tube assembly includes:

the outer tube body is sleeved outside at least part of the inner tube, a space is reserved between the outer tube body and the inner tube, and the outer tube assembly is sleeved outside the lens seat assembly;

the flange plate is connected to the outer wall of the outer tube body, and the flange plate is axially connected with the handle sleeve.

In one example, one of the flange plate and the handle sleeve is provided with a plug rod, and the other one of the flange plate and the handle sleeve is provided with a slot, and the plug rod is inserted into the slot along the axial direction of the outer tube body.

In an example, the handle sleeve is provided with a mounting groove towards the front end, and the flange plate is positioned in the mounting groove; the outer tube subassembly still includes the clamping ring, the clamping ring pressfitting in the ring flange is kept away from one side of the diapire of mounting groove, and is located in the mounting groove, just the clamping ring with the cell wall threaded connection of mounting groove.

According to the technical scheme, the lens module and the main board are arranged in the inner shielding cover group, the outer shielding cover group is sleeved outside the inner shielding cover group, and the outer shielding cover group and the inner shielding cover group are spaced, so that the lens module and the main board in the endoscope can obtain double electromagnetic shielding effects, the lens module and the main board are ensured to have more stable working states, the risk of interference in image transmission is reduced, the display device can display normal and accurate images, and the stability and safety of the endoscope in use are improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained from the structures shown in the drawings without inventive effort to those skilled in the art.

FIG. 1 is an elevation view of an embodiment of an endoscope of the present utility model;

FIG. 2 is a partial cross-sectional view of A-A of FIG. 1;

FIG. 3 is a partial enlarged view at B in FIG. 2;

FIG. 4 is a schematic view of an exploded view of an embodiment of an endoscope with a heat dissipating structure according to the present utility model;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

FIG. 6 is a schematic view of the assembled structure of the endoscope with the outer shield set removed;

FIG. 7 is a schematic view of an exploded view of the endoscope of the present utility model with the outer set of shields removed;

FIG. 8 is a schematic view of an outer tube assembly of an outer shield set and a portion of an inner shield set of an endoscope of the present utility model, shown disassembled.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides an endoscope.

In the embodiment of the present utility model, please refer to fig. 1 to 7 in combination, the endoscope includes a lens module 100, a main board 200, an inner shielding case set 300 and an outer shielding case set 400, the lens module 100 has an output line 130; the output line 130 is electrically connected with the main board 200; the lens module 100 and the main board 200 are both installed in the inner shielding case set 300; the outer shielding case set 400 is sleeved outside the inner shielding case set 300 and is spaced from the inner shielding case set 300.

The lens module 100 includes a circuit board, and the circuit board of the lens module 100 and the main board 200 in the endoscope are easily interfered by external electromagnetic wave signals during operation. For example, when surgical instruments such as a high-frequency electric knife and a high-frequency ultrasonic knife are used, the camera module in the endoscope is easily disturbed by electromagnetic wave signals released from these high-frequency instruments, and thus an abnormal image screen is likely to occur on a display device connected to the endoscope. In the technical scheme of the utility model, by arranging the inner shielding case set 300 and the outer shielding case set 400, the lens module 100 and the main board 200 are both arranged in the inner shielding case set 300, and then the inner shielding case set 300 can resist a part of electromagnetic wave signals for the lens module 100 and the main board 200. The outer shielding cover set 400 is sleeved outside the inner shielding cover set 300 and is spaced from the inner shielding cover set 300, so that the outer shielding cover set 400 can further resist electromagnetic wave signals from the lens module 100 and the main board 200 which are arranged in the inner shielding cover set 300, and a better electromagnetic interference shielding effect is achieved. In the technical scheme of the utility model, in order to realize the electromagnetic shielding effect, the inner shielding cover set 300 and the outer shielding cover set 400 are both made of metal materials. The interval is arranged between the outer shielding cover set 400 and the inner shielding cover set 300, so that the endoscope has the effect of double-layer shielding electromagnetic wave signals, a wiring space is provided for the wiring of the optical fibers, the optical fibers 500 are arranged in the interval between the outer shielding cover set 400 and the inner shielding cover set 300, the exposure of the wiring of the optical fibers is avoided, and the good protection effect on the wiring of the optical fibers is achieved. In addition, referring to fig. 2 and 3, the window of the lens module 100 is generally inclined, and the light passing through the window of the lens module 100 is perpendicular to the window, so that the light passing through the window of the lens module 100 is also inclined. In order to ensure that the angle of the light emitted by the optical fiber 500 is consistent with the angle of the light passing through the lens window of the lens module 100, the front end of the endoscope is further provided with an optical fiber pressing sheet 600, the optical fiber pressing sheet 600 can be fixedly arranged on one side of the outer shielding cover group 400 facing the inner shielding cover group 300 in a cementing or other fixing manner, one side of the optical fiber pressing sheet 600 facing the inner shielding cover group 300 is an inclined surface, the inclined surface is arranged at an included angle with the axial direction of the endoscope, the inclined surface is used for restraining the optical fiber 500 and bending and attaching the optical fiber 500 to the inclined surface, so that the extending direction of the optical fiber 500 is changed, and the inclined direction of the bent optical fiber 500 is consistent with the direction of the light passing through the lens window of the lens module 100.

In an example, the inner shielding case set 300 may include a main case having a mounting opening formed therein for mounting the lens module 100 and the main board 200 in the main case, and a cover movably coupled to the main case and capable of opening or closing the mounting opening, for example, slidably coupled to the main case or rotatably coupled to the main case. The cover body can be detachably connected with the main cover body or can be non-detachably connected with the main cover body. In another example, the inner shield set 300 may include a plurality of tubular body shields or box-shaped shields that are spliced in the axial direction, so as to facilitate the installation of the lens module 100 and the main board 200 in different tubular body shields or box-shaped shields, respectively, and then splice the plurality of tubular body shields or box-shaped shields to each other, so as to facilitate the disassembly, maintenance, or replacement of the lens module 100 or the main board 200 disposed in the inner shield set 300. Similarly, the outer shielding set 400 may also have a similar structure as the inner shielding set 300, and will not be described in detail herein.

According to the technical scheme, the lens module 100 and the main board 200 are arranged in the inner shielding cover group 300, the outer shielding cover group 400 is sleeved outside the inner shielding cover group 300, and the outer shielding cover group 400 and the inner shielding cover group 300 are spaced, so that the lens module 100 and the main board 200 in the endoscope can obtain a double electromagnetic shielding effect, the lens module 100 and the main board 200 are ensured to have a more stable working state, the risk of interference of image transmission is reduced, a display device can display normal and accurate images, and the stability and the safety of the endoscope in use are improved.

In an example, referring to fig. 4 to 7 in combination, the inner shielding case set 300 includes a lens base assembly 310, an inner tube 320 and a main board shielding case assembly 330, the lens module 100 is installed in the lens base assembly 310, and one end of the output wire 130 extends out of the lens base assembly 310; one end of the inner tube 320 is connected with the lens holder assembly 310, the other end extends away from the lens holder assembly 310, and the output line 130 penetrates from one end of the inner tube 320 and passes out through the other end of the inner tube 320; the main board shielding shell assembly 330 is covered outside the main board 200 and is connected with one end of the inner tube 320 away from the lens holder assembly 310.

The lens holder assembly 310 is used for installing the lens module 100, and in order to facilitate the connection between the output line 130 of the lens module 100 and the motherboard 200, the lens holder assembly 310 has a through hole through which the output line 130 passes. It is understood that, to facilitate the installation of the lens module 100 in the lens holder assembly 310, the lens holder assembly 310 further has an installation opening for installing the lens module 100. In order to reduce the manufacturing process flow of the lens mount assembly 310, the through hole of the lens mount assembly 310 through which the output line 130 passes may be overlapped with the mounting hole of the lens mount assembly 100, i.e. the rear end of the lens mount assembly 310 is provided with an opening, which is used as the through hole and the mounting hole, thereby not only facilitating the mounting of the lens mount assembly 100, but also ensuring that the output line 130 extends from the lens mount assembly 310 to be electrically connected with the motherboard 200.

The inner shielding cover assembly 300 further comprises an inner tube 320 and a main board shielding shell assembly 330, one end of the inner tube 320 is connected with the lens seat assembly 310, the other end of the inner tube 320 is connected with the main board shielding shell assembly 330, and the output line 130 penetrates through one end of the inner tube 320 and penetrates out of the other end of the inner tube 320, so that the inner shielding cover assembly has a good electromagnetic shielding effect on the output line 130, has good guiding and protecting effects on the output line 130, and avoids the risks of winding and knotting of the output line 130. The motherboard shielding shell assembly 330 is covered outside the motherboard 200, so as to play a good electromagnetic shielding effect for each electronic device on the motherboard 200. By dividing the inner shield case assembly 300 into the lens mount assembly 310, the inner tube 320 and the main board shield case assembly 330 in this example, the lens module 100, the output line 130 of the lens module 100 and the main board 200 can be individually mounted, thereby reducing the difficulty of mounting each component of the endoscope. The inner tube 320 and the lens holder assembly 310 in this example may be connected by bonding or welding, so that on one hand, the connection between the inner tube 320 and the lens holder assembly 310 may be ensured to be more stable, and on the other hand, a good sealing effect may be provided between the inner tube 320 and the lens holder assembly 310, thereby further ensuring the effectiveness of electromagnetic shielding. Likewise, the inner tube 320 and the main board shield assembly 330 may be connected by means of bonding, welding or threaded connection, so that the inner tube 320 and the main board shield assembly 330 may have a good connection effect and a good sealing effect, thereby ensuring that the whole inner shield assembly 300 has a good electromagnetic shielding effect.

In an example, referring to fig. 4 to 7 in combination, the lens holder assembly 310 includes a lens holder body 311 and a lens holder cover 312, the lens module 100 includes a lens body 110 and an image sensor circuit board 120, the lens body 110 is mounted in the lens holder body 311, and the lens holder body 311 has an opening towards the rear end; the lens housing 312 is hermetically connected to the rear end of the lens housing body 311, the image sensor circuit board 120 is disposed in the lens housing 312, and one end of the inner tube 320 is connected to the lens housing 312.

The lens module 100 includes a lens body 110 and an image sensor circuit board 120, the lens body 110 is used for collecting images and transmitting image signals to the image sensor circuit board 120, the image sensor circuit board 120 has an output line 130, and further outputs the image signals to the main board 200 through the output line 130, and finally, the image information is transmitted to the display device through the main board 200 so as to display images on the display device. The lens body 110 is mounted in the lens holder body 311, and the lens holder body 311 has an opening toward the rear end, so that the lens body 110 is conveniently mounted in the lens holder body 311 from the opening, and the assembly process of the lens body 110 is facilitated. By disposing the image sensor circuit board 120 in the lens housing 312, the lens housing 312 has a better protection and electromagnetic shielding effect on the image sensor circuit board 120.

Since the image sensor circuit board 120 generates heat during operation, in order to avoid the heat affecting the image sensor circuit board 120 and avoiding the risk of the patient caused by the local overhigh temperature of the endoscope, the endoscope in the technical scheme of the utility model may be further provided with a heat dissipation structure 700, and referring to fig. 4 and 5 in particular, the heat dissipation structure 700 is at least partially arranged outside the lens housing 312 to dissipate heat of the image sensor circuit board 120 in the lens housing 312. In one example, the heat dissipation structure 700 includes a heat dissipation tube 710 and a heat dissipation strip 720, wherein one end of the heat dissipation tube 710 is embedded in the lens housing 312; the heat dissipation strip 720 is wrapped outside part of the inner tube 320, and the other end of the heat dissipation tube 710 is embedded in the heat dissipation strip 720. The heat dissipation strip 720 may be disposed outside the inner tube 320 by riveting or bonding. The heat dissipation tube 710 may be a copper tube, and the heat dissipation strip 720 may be an aluminum strip, so that on one hand, a better heat dissipation effect may be ensured, and on the other hand, the heat dissipation cost may be reduced based on the premise of having a better heat dissipation effect.

In an example, referring to fig. 2 and 7 in combination, the main board shielding shell assembly 330 includes a bracket assembly 331 and a shielding cover 332, the main board 200 is fixedly mounted on the bracket assembly 331, and the bracket assembly 331 is connected to an end of the inner tube 320 away from the lens mount assembly 310; the shielding cover 332 covers the bracket component 331, and the motherboard 200 is located in a cavity formed by enclosing the shielding cover 332 and the bracket component 331.

It can be appreciated that the main board 200 needs to be installed more stably, in this example, the main board shield shell assembly 330 includes two parts of the bracket assembly 331 and the shield cover body 332, so that the main board 200 is convenient to be fixed on the bracket assembly 331 through a screw connection or a buckle connection, and the like, thereby ensuring that the main board 200 is installed more stably. After the main board 200 is mounted stably, the shielding cover 332 covers the bracket component 331, so that the main board 200 is located in a cavity formed by enclosing the shielding cover 332 and the bracket component 331, so that the bracket component 331 and the shielding cover 332 have good protection effects on the main body, and the bracket component 331 and the shielding cover 332 can also have good electromagnetic protection effects on various electronic devices on the main board 200. In addition, since the main board 200 is mounted on the bracket component 331, the end of the inner tube 320 away from the lens holder component 310 is connected to the bracket component 331, so that the output line 130 can be conveniently electrically connected with the main board 200 after the main board 200 is connected to the bracket component 331.

Referring to fig. 2 and 7 in combination, in order to achieve a stable connection effect between the inner tube 320 and the bracket assembly 331, in this example, the bracket assembly 331 includes a bracket body 331a and a fastening ring 331b, the bracket body 331a is provided with a mounting hole 3311 and an avoidance groove 3312 communicating with the mounting hole 3311, and the fastening ring 331b is disposed in the avoidance groove 3312; the inner tube 320 has a flange ring 340 at an end thereof remote from the lens holder assembly 310, and the flange ring 340 passes through the mounting hole 3311 and extends into the escape groove 3312 to be connected with the fastening ring 331 b.

By arranging the flange ring 340 at the end of the inner tube 320 far away from the lens mount assembly 310, the mounting hole 3311 is arranged on the frame body 331a of the support 331, and the flange ring 340 penetrates through the mounting hole 3311 and extends into the avoidance groove 3312 to be connected with the fastening ring 331b of the support assembly 331, so that the connection stability of the inner tube 320 and the support 331 is improved. In an example, to facilitate connection between the bracket assembly 331 and the inner tube 320 and facilitate mounting of the motherboard 200 on the bracket assembly 331, the frame body 331a of the bracket assembly 331 may include a mounting base plate and a connection plate connected to the mounting base plate at an included angle, where the motherboard 200 is fixedly mounted on the mounting base plate, and mounting holes 3311 for mating connection with the flange ring 340 are formed in the connection plate.

In one embodiment, referring to fig. 2 and 7 in combination, the fastening ring 331b is clamped between the inner tube 320 and the sidewall of the escape groove 3312 and is screwed with the flange ring 340.

Through with the clamping ring 331b centre gripping between flange ring 340 and dodge the lateral wall in groove 3312, then the inner wall of clamping ring 331b supports with the outer wall of flange ring 340 and holds, and the outer wall of clamping ring 331b supports with the lateral wall of dodging groove 3312 to make clamping ring 331b can compress tightly inner tube 320, thereby improved the stability that inner tube 320 is connected in support 331, reduced the risk that inner tube 320 was taken out easily from support 331. As an example, the flange ring 340 has external threads, the hole wall of the fastening ring 331b has internal threads, and the external threads of the flange ring 340 are in screw fit with the internal threads of the fastening ring 331b, so that the effect of screw connection between the flange ring 340 and the bracket component 331 is achieved, the connection efficiency is improved, and the use of connecting pieces is reduced. In addition, it can be appreciated that the flange ring 340 is screwed with the fastening ring 331b of the bracket assembly 331, so that the flange ring 340 has a self-locking effect in the axial direction of the inner tube 320, and the risk that the flange ring 340 and the inner tube 320 are easily separated from the bracket 331 in the axial direction is reduced.

Referring to fig. 1, 2 and 8 in combination, the present utility model provides an example of a structure of an outer shielding case set 400, in which the outer shielding case set 400 includes an outer tube assembly 410 and a handle sleeve 420, the outer tube assembly 410 is sleeved outside the lens holder assembly 310 and at least part of the inner tube 320, and a space is provided between the outer tube assembly 410 and the lens holder assembly 310 and the inner tube 320; the handle sleeve 420 is axially connected to one end of the outer tube assembly 410 and is sleeved outside the main board shielding shell assembly 330.

By sleeving the outer tube assembly 410 outside the lens seat assembly 310 and at least part of the inner tube 320 and having a space between the outer tube assembly 410 and the lens seat assembly 310 and between the outer tube assembly and the inner tube 320, the risk of interference of electromagnetic wave signals on the lens module 100 is further reduced by the outer tube assembly 410, and the stability of the lens module 100 in use is improved. The handle sleeve 420 is axially connected to one end of the outer tube assembly 410 and is sleeved outside the main board shielding shell assembly 330, so that on one hand, the lens module 100, the main board 200 and the like in the shielding shell assembly and the inner shielding shell assembly 300 are convenient to install in the outer shielding shell assembly 400, and on the other hand, the handle sleeve 420 has a further electromagnetic shielding effect on the main board 200, and the running stability of the main board 200 is improved.

Referring to fig. 1, 2 and 8 in combination, in order to facilitate connection between the handle sleeve 420 and the outer tube assembly 410, in this example, the outer tube assembly 410 includes an outer tube body 411 and a flange 412, the outer tube body 411 is sleeved outside the lens holder assembly 310 and at least part of the inner tube 320, and has a space between the lens holder assembly 310 and the inner tube 320, and the outer tube assembly 410 is sleeved outside the lens holder assembly 310; the flange 412 is connected to the outer wall of the outer tube body 411, and the flange 412 is axially connected to the handle sleeve 420.

By sleeving the outer tube body 411 outside the lens base assembly 310 and at least part of the inner tube 320, the outer tube body 411 has a further electromagnetic shielding effect on the lens module 100 in the lens base assembly 310. When the flange 412 is connected to the outer wall of the outer tube body 411, the flange 412 may be welded to the outer tube body 411 to form an integral structure, or formed into an integral structure by an integral molding method. By connecting the flange 412 to the outer wall of the outer tube body 411, it is convenient to achieve the connection effect of the outer tube assembly 410 and the handle sleeve 420 in the axial direction through the flange 412. The handle sleeve 420 and the flange 412 can be connected by plugging or screwing.

In one example, as shown in fig. 2, one of the flange 412 and the handle cover 420 is provided with a plug 421, and the other is provided with a socket, and the plug 421 is inserted into the socket along the axial direction of the outer tube body 411.

By arranging the insert rod 421 on one of the flange 412 and the handle sleeve 420 and arranging the insert rod 421 on the other, the insert rod 421 is inserted into the insert rod along the axial direction of the outer tube body 411, so that the flange 412 and the handle sleeve 420 can be conveniently connected, and the connection efficiency of the flange 412 and the handle sleeve 420 is improved. It can be appreciated that when the insert rod 421 is inserted into the slot along the axial direction of the outer tube body 411, the extending direction of the insert rod 421 is parallel to the axis of the outer tube body 411, wherein the insert rod 421 can be offset from the axis of the outer tube body 411, so that when the insert rod 421 is matched with the slot, the risk of the flange 412 rotating relative to the handle sleeve 420 is avoided, and thus the outer tube assembly 410 is ensured to have better stability.

To further prevent the outer tube assembly 410 from being axially detached from the handle sleeve 420, as shown in fig. 2, in this example, the handle sleeve 420 is provided with a mounting groove toward the front end, and the flange 412 is located in the mounting groove; the outer tube assembly 410 further comprises a pressing ring 413, wherein the pressing ring 413 is pressed on one side of the flange 412 away from the bottom wall of the mounting groove and is located in the mounting groove, and the pressing ring 413 is in threaded connection with the groove wall of the mounting groove.

The mounting groove has been seted up to the front end of handle cover 420, and ring flange 412 is located the mounting groove, and clamping ring 413 pressfitting is in ring flange 412 one side of keeping away from the diapire of mounting groove to be located the mounting groove, and clamping ring 413 and the cell wall threaded connection of mounting groove, thereby make the diapire of mounting groove carry out spacingly to the rear end of outer tube subassembly 410 on the one hand, prevent that the outward appearance subassembly from moving backward, on the other hand still makes and is connected firmly between outward appearance subassembly and the handle cover 420, guarantees the integrality of outer shield cover group 400.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. An endoscope, comprising:

a lens module having an output line;

the output line is electrically connected with the main board;

the lens module and the main board are both arranged in the inner shielding cover set; and

the outer shielding cover group is sleeved outside the inner shielding cover group and is arranged at intervals with the inner shielding cover group.

2. The endoscope of claim 1, wherein the inner set of shields comprises:

the lens module is arranged in the lens seat assembly, and one end of the output line extends out of the lens seat assembly;

the output line penetrates from one end of the inner tube and passes through the other end of the inner tube; and

and the main board shielding shell assembly is covered outside the main board and is connected with one end of the inner tube, which is far away from the lens seat assembly.

3. The endoscope of claim 2, wherein the lens mount assembly comprises:

the lens module comprises a lens seat body and an image sensor circuit board, wherein the lens body is arranged in the lens seat body and is provided with an opening towards the rear end; and

the lens seat cover is connected to the rear end of the lens seat body in a sealing mode, the image sensor circuit board is arranged in the lens seat cover, and one end of the inner tube is connected with the lens seat cover.

4. The endoscope of claim 2, wherein the main board shield assembly comprises:

the main board is fixedly arranged on the bracket assembly, and the bracket assembly is connected with one end of the inner tube, which is far away from the lens seat assembly; and

the shielding cover body covers the support assembly, and the main board is located in a cavity formed by enclosing the shielding cover body and the support assembly.

5. The endoscope of claim 4, wherein the bracket assembly comprises a bracket body and a fastening ring, the bracket body is provided with a mounting hole and a avoidance groove communicated with the mounting hole, and the fastening ring is arranged in the avoidance groove; one end of the inner tube, which is far away from the lens seat assembly, is sleeved with a flange ring, and the flange ring penetrates through the mounting hole and stretches into the avoidance groove to be connected with the fastening ring.

6. The endoscope of claim 5, wherein the fastening ring is clamped between the flange ring and a sidewall of the relief groove and is threadably coupled to the flange ring.

7. The endoscope of any one of claims 2 to 6, wherein the set of outer shields comprises:

the outer tube assembly is sleeved outside the lens seat assembly and at least part of the inner tube, and a space is reserved between the outer tube assembly and the lens seat assembly and between the outer tube assembly and the inner tube; and

the handle sleeve is axially connected to one end of the outer tube assembly and sleeved outside the main board shielding shell assembly.

8. The endoscope of claim 7, wherein the outer tube assembly comprises:

the outer tube body is sleeved outside at least part of the inner tube, a space is reserved between the outer tube body and the inner tube, and the outer tube assembly is sleeved outside the lens seat assembly;

the flange plate is connected to the outer wall of the outer tube body, and the flange plate is axially connected with the handle sleeve.

9. The endoscope of claim 8, wherein one of the flange and the handle sleeve is provided with a socket, and the other is provided with a slot, and the socket is inserted into the slot in an axial direction of the outer tube body.

10. The endoscope of claim 8, wherein the handle sleeve is provided with a mounting groove towards the front end, and the flange is positioned in the mounting groove; the outer tube subassembly still includes the clamping ring, the clamping ring pressfitting in the ring flange is kept away from one side of the diapire of mounting groove, and is located in the mounting groove, just the clamping ring with the cell wall threaded connection of mounting groove.