Endoscopic capsule and assembly method

Abstract

The present invention discloses an endoscope capsule, comprising a shell (12); optical front covers (1) are provided at both ends of the shell (12); a capsule core is provided in the shell (12); a light board cover (2) is provided at the connection between the shell (12) and the optical front cover (1); the end faces of the light board cover (2) at both ends abut against PCB boards at both ends of the core; a camera hole (2-1a) is provided in the middle of the light board cover (2); an outwardly convex pressing position (2-4) is provided at the edge of the end of the light board cover (2); the pressing position (2-4) is pressed by the end faces of the shell (12) and the optical front cover (1). The present invention can prevent the difficulty of assembling the capsule shell head cover after the PCB board bounces up, improve production efficiency, facilitate disassembly and maintenance, and reduce the undesirable phenomena such as poor contact, short circuit, and broken wire caused by FPC extrusion or distortion.

Description

Technical Field

[0001] The present invention relates to a medical device, in particular to an endoscope capsule and an assembling method thereof. Background Art

[0002] Wireless capsule endoscopes are increasingly used to examine patients for digestive tract diseases. Their structure generally consists of an image acquisition module, signal processing module, battery, radio frequency module, and antenna integrated into a capsule core via a bracket, which is then mounted within a capsule shell. For example, the wireless capsule endoscope disclosed in CN208659309U employs a relatively simple assembly method. The electronic components, including the image acquisition module, signal processing module, and radio frequency module, are mounted on at least two PCBs, connected by flexible components such as FPCs. A battery is located between the two PCBs via a spring to provide power.

[0003] However, existing assembly structures can cause poor power supply to the PCB due to spring failure or insufficient preset spring force, or assembly errors can leave the capsule unused while the battery is dead. Furthermore, because the FPC is a soft material, extreme care must be taken during assembly to prevent it from being squeezed or twisted, which could lead to poor contact, short circuits, or broken wires, significantly reducing production efficiency.

[0004] Furthermore, during assembly, the PCB will bounce, making it difficult to assemble the capsule shell, thus impacting production efficiency. Similarly, disassembly is also difficult due to the PCB's bounce, making repairs difficult. To prevent this, the capsule shell and optical front cover are designed to hold the PCB down during assembly. However, since the dimensional accuracy of PCBs is typically within ±0.1 mm, assembly errors can be significant, making it difficult to hold the PCB down. This directly leads to low product yields and reduced production efficiency.

[0005] On the other hand, adhesives will be used during assembly, which makes the assembly process complicated and further reduces production efficiency.

[0006] Therefore, those skilled in the art are committed to developing an endoscopic capsule that is simpler to manufacture. Summary of the Invention

[0007] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide an endoscope capsule that is easier to manufacture.

[0008] To achieve the above-mentioned objectives, the present invention provides an endoscopic capsule, comprising an outer shell; optical front covers are provided at both ends of the outer shell; a capsule core is arranged inside the outer shell; a light board cover is provided at the connection between the outer shell and the optical front cover; the end faces of the light board cover at both ends abut against the PCB boards at both ends of the inner core; a camera hole is provided in the middle of the light board cover; an outwardly protruding pressing position is provided at the edge of the end of the light board cover; the pressing position is pressed by the end faces of the outer shell and the optical front cover.

[0009] In order to prevent the PCB board from being assembled inconveniently due to the memory rebound force of the FPC (soft) when the optical front cover is not fastened to the housing, a positioning column is provided at the end of the light board cover.

[0010] In order to make the capsule core look more integrated and not expose any other parts, a hole is provided on the top of the lamp panel cover.

[0011] In order to prevent optical adverse phenomena such as blurred lens imaging and reflection, the light board cover is provided with a light shielding ring on the inner side of the air-avoiding hole.

[0012] To further facilitate installation, the shell is a cylindrical shell with openings at both ends; and at least one first limiting rib is provided on the inner wall of the shell along the axial direction.

[0013] A radially extending limiting block is provided at one end of the first limiting rib.

[0014] The first limiting end surface inside the limiting block corresponds to the PCB board outside the capsule core.

[0015] There are two first limiting ribs, and the two first limiting ribs are arranged in parallel.

[0016] A second limiting rib is provided on the inner wall of the shell opposite to the first limiting rib and extends axially from the end surface of the shell to the middle of the shell.

[0017] The second limiting end surface of the inner end of the second limiting rib corresponds to the end surface of the capsule core mounting bracket.

[0018] In order to reduce the difficulty of making the mold and the difficulty of production, a thickening block is integrally provided at the port of the shell.

[0019] In order to prevent the end face of the glue port from protruding from the circular surface of the port during mold production, which would cause inconvenience in assembly, a margin notch is provided at the port of the thickening block.

[0020] To further facilitate installation, the capsule core includes a battery and a first PCB board, a second PCB board, a third PCB board, a fourth PCB board, and a fifth PCB board connected in sequence via an FPC; the third PCB board is connected to an antenna board via an FPC;

[0021] A first camera and a second camera are respectively provided on the second PCB board and the fourth PCB board;

[0022] The second PCB board and the antenna board are fixed by a first bracket; the third PCB board and the fourth PCB board are fixed by a second bracket; the first PCB board is mounted on the first camera; and the fifth PCB board is mounted on the second camera;

[0023] The battery is arranged between the third PCB board and the fourth PCB board.

[0024] Preferably, the first bracket is a C-shaped structure; a spacer is provided in the middle of the first bracket; at least one first column is provided on one side surface of the spacer; at least one second column is provided on the other side surface of the spacer; and conical strong releases are provided at the ends of the first column and the second column;

[0025] Preferably, the second PCB board is inserted into the first column and fixed by the strong release; the third PCB board is inserted into the second column and fixed by the strong release;

[0026] Preferably, a third column is further provided on one side surface of the spacer; the height of the third column is smaller than the first column provided on the same side thereof; and a conical column buckle is provided at the end of the third column;

[0027] Preferably, the antenna board is inserted into the third column; an antenna pressing plate inserted into the third column is provided on the upper portion of the antenna board; and the antenna pressing plate is fixed by the column buckle.

[0028] Preferably, the central angle corresponding to the spacer is not less than 180°; the center of the third column coincides with the center of the spacer.

[0029] Preferably, the ends of the first column and / or the second column extend out of the end surface of the first bracket.

[0030] To further facilitate installation, the second bracket includes a cylindrical body; one end of the body is provided with an X-direction stop and a Y-direction stop; a first Z-direction stop is integrally provided on the X-direction stop and / or the Y-direction stop at this end; the end surface of the third PCB board away from the battery is limited by the first Z-direction stop;

[0031] The other end of the body is provided with an X-direction gear and / or a Y-direction gear; a second Z-direction gear is integrally provided on the X-direction gear and / or the Y-direction gear of this end; the end surface of the fourth PCB board away from the battery is limited by the second Z-direction gear.

[0032] Preferably, one or both ends of the body are provided with an avoidance gap along the Z direction.

[0033] Preferably, the X-direction gear located at one end of the body includes a first X-direction gear, a second X-direction gear and a third X-direction gear; the first X-direction gear and the second X-direction gear are located on both sides of the avoidance gap; the third X-direction gear is located on the other side relative to the avoidance gap.

[0034] Preferably, the Z-direction height of the third X-direction gear position is greater than the Z-direction heights of the first X-direction gear position and the second X-direction gear position.

[0035] Preferably, the X-direction gear located at the other end of the body includes a fourth X-direction gear, a fifth X-direction gear, a sixth X-direction gear and a seventh X-direction gear; the fourth X-direction gear and the fifth X-direction gear are located on both sides of the avoidance gap; the sixth X-direction gear and the seventh X-direction gear are located on the other side relative to the avoidance gap.

[0036] Preferably, both sides of the X-direction gear or the Y-direction gear where the Z-direction gear is provided are provided with gaps for making way.

[0037] Preferably, anti-fouling ribs are provided on the outer surface of the body along the Z direction.

[0038] The beneficial effects of the present invention are as follows: the present invention can prevent the difficulty in assembling the capsule shell head cover after the PCB board bounces up, thereby improving production efficiency and facilitating disassembly and maintenance; it can also reduce undesirable phenomena such as poor contact, short circuit, and broken wire caused by FPC extrusion or distortion; it ensures the space above and below the antenna, so that the space is fixed and the signal stability is improved; it can improve the integrity of the entire capsule and make it more beautiful; the PCB board is simple to assemble, not prone to warping, and has a high yield rate; it can also ensure clear imaging without reflection; it can also prevent the elastic force brought by the spring at both ends of the battery from causing poor power supply to the PCB; and it can prevent the capsule core from rotating in the shell, thereby preventing the capsule power-off effect from becoming ineffective. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention.

[0040] Figure 2 It is a structural schematic diagram of a lamp panel cover in a specific embodiment of the present invention.

[0041] Figure 3 yes Figure 2 Schematic diagram of the CC cross-sectional structure.

[0042] Figure 4 yes Figure 2 Schematic diagram of the top view structure.

[0043] Figure 5 yes Figure 2 Schematic diagram of the upward-looking structure.

[0044] Figure 6 It is a structural schematic diagram of a shell in a specific embodiment of the present invention.

[0045] Figure 7 yes Figure 6 AA cross-sectional structural diagram.

[0046] Figure 8 yes Figure 6 Schematic diagram of BB cross-sectional structure.

[0047] Figure 9 yes Figure 6 Schematic diagram of the top view structure.

[0048] Figure 10 It is a structural schematic diagram of a PCB board in a specific embodiment of the present invention.

[0049] Figure 11 It is a structural schematic diagram of the first bracket in a specific embodiment of the present invention.

[0050] Figure 12 yes Figure 11 Schematic diagram of the front view structure.

[0051] Figure 13 It is a schematic structural diagram of the second bracket in a specific embodiment of the present invention.

[0052] Figure 14 yes Figure 13 Schematic diagram of the three-dimensional structure viewed from above.

[0053] Figure 15 yes Figure 13 Schematic diagram of the front view structure. DETAILED DESCRIPTION

[0054] The present invention will be further described below with reference to the accompanying drawings and examples:

[0055] A method for assembling an endoscope capsule comprises the following steps:

[0056] 1) Assemble the capsule core

[0057] 1a) providing a first PCB board, a second PCB board, a third PCB board, a fourth PCB board, and a fifth PCB board connected in sequence via an FPC; the third PCB board is connected to an antenna board via the FPC;

[0058] A C-shaped first bracket is provided; the first bracket is a thin-walled, through-hole structure with a partition disposed in the middle; one surface of the partition has a third PCB board limiting component and an antenna board limiting component; the limiting height of the antenna board limiting component is less than the limiting height of the third PCB board limiting component; the other surface of the partition has a second PCB board limiting component;

[0059] A cylindrical second bracket is provided; one end of the second bracket has a limiting component in the X direction, the Y direction, and the Z direction, and the other end has a limiting component in the X direction, the Y direction, and the Z direction;

[0060] 1b) Install the battery in the second bracket; springs 13 are provided on both end surfaces of the battery;

[0061] 1c) The third PCB is installed into one end of the second bracket and is limited by the limiting components in the X, Y and Z directions of the end;

[0062] 1d) Pass the FPC between the third PCB and the fourth PCB from one end of the second bracket to the other end;

[0063] 1e) The fourth PCB is installed into the other end of the fixing bracket and is limited by the limiting components in the X direction, Y direction, and Z direction of the other end.

[0064] 1f) Snap the third PCB board's limiting component into the third PCB board;

[0065] 1g) Folding the antenna board into the first bracket and snapping the antenna board into the antenna board limiting component;

[0066] 1g) Snap the second PCB into the second PCB limiting component;

[0067] 2) Assemble the capsule

[0068] 2a) inserting the capsule core into the shell and axially limiting the capsule core;

[0069] 2b) Installing a cover body on the fifth PCB board and the fourth PCB board; an end of the cover body abuts against the fourth PCB board, and the end has a radial dimension extending to a pressing position of the outer shell connection portion; and the optical front cover is pressed against the pressing position and then engaged with the outer shell;

[0070] 2c) Installing a cover body on the first PCB board and the second PCB board; an end of the cover body abuts against the second PCB board, and the end has a radial dimension extending to a pressing position of the shell connection part; and the optical front cover is pressed against the pressing position and then matched with the shell.

[0071] like Figure 1As shown, the above assembly method can be implemented using an endoscope capsule, which includes a shell 12, with an optical front cover 1 fitted at both ends. A capsule core is disposed within the shell 12. A light panel cover 2 is disposed at the junction of the shell 12 and the optical front cover 1. The end faces of the light panel cover 2 at both ends abut against the PCB boards at both ends of the core. A camera hole 2-1a is disposed in the middle of the light panel cover 2. The edges of the ends of the light panel cover 2 are provided with protruding pressing portions 2-4, which are pressed by the end faces of the shell 12 and the optical front cover 1.

[0072] Since the lamp panel cover parts are made of molds, the accuracy of the pressing position can reach plus or minus 0.01mm, which far exceeds the accuracy of the PCB. This can improve production efficiency and reduce the defective rate in the production process.

[0073] The end of the lamp panel cover 2 is provided with a positioning column 2-5. During assembly, the positioning column 2-5 is snapped into the corresponding PCB board so that the PCB board of the capsule core no longer bounces upward to achieve Z-direction positioning and rotational positioning.

[0074] The top is provided with a hole 2-2. The hole 2-2 is set according to the number and size of the light sources, so that except for the light sources and the lens, other electronic components are covered by the light panel, thereby improving the integrity of the capsule and making it more beautiful.

[0075] The light panel cover 2 is provided with a light shielding ring 2-3 on the inner side of the air-avoiding hole 2-2, so that the light from the light source will not directly hit the lens, thereby preventing optical defects such as blurred lens imaging and reflection.

[0076] The shell 12 is a cylindrical shell with two ends open. Two parallel first limiting ribs 12-3 are axially arranged on the inner wall of the shell 12. The length of the first limiting ribs 12-3 is the same as that of the shell, so they can also play a guiding role when installing the capsule core.

[0077] One end of the first limiting rib 12-3 is provided with a radially extending limiting block 12-3a, and the first limiting end surface 12-3b inside the limiting block 12-3a corresponds to the PCB board outside the capsule core. Therefore, the limiting block 12-3a will limit the limit position of the capsule core inserted into the shell.

[0078] A second limiting rib 12-2 is provided on the inner wall of the housing 12, opposite the first limiting rib 12-3, extending axially from the end surface 1a of the housing 12 to the middle of the housing 12. The second limiting end surface 12-2a at the inner end of the second limiting rib 12-2 corresponds to the end surface H of the first support of the capsule core. Therefore, the second limiting rib 12-2 limits the maximum position of the first support end surface H.

[0079] A thickening block 12 c is integrally provided at the end of the housing 12 , and a margin notch 12 b is provided at the end of the thickening block 12 c .

[0080] The capsule core includes a battery 7 and a first PCB 9, a second PCB 3, a third PCB 5, a fourth PCB 8, and a fifth PCB 14, which are sequentially connected via an FPC 17. The third PCB 5 is connected to the antenna board 4 via the FPC. The third PCB 5 has a first positioning and mounting hole 5a, the second PCB 3 has a second positioning and mounting hole 3a, and the antenna board 4 has a third positioning and mounting hole 4a.

[0081] A first camera 15 and a second camera 16 are respectively provided on the second PCB board 3 and the fourth PCB board 8 .

[0082] The second PCB board 3 and the antenna board 4 are fixed by the first bracket 11, and the third PCB board 5 and the fourth PCB board 8 are fixed by the second bracket 6. The first PCB board is mounted on the first camera 15, and the fifth PCB board 5 is mounted on the second camera 16.

[0083] The battery 7 is disposed between the third PCB board 5 and the fourth PCB board 8 .

[0084] The first bracket 11 has an overall C-shaped structure. A spacer 11-7 is positioned in the middle of the first bracket 11. Two first posts 11-3 are positioned opposite each other on one side of the spacer 11-7, and two second posts 11-4 are positioned opposite each other on the other side of the spacer 11-7. Conical strong releases 11-2 are positioned at the ends of the first and second posts 11-3 and 11-4.

[0085] The second PCB board 3 is inserted into the first column 11 - 3 and fixed by the strong release 11 - 2 ; the third PCB board 5 is inserted into the second column 11 - 4 and fixed by the strong release 11 - 2 of the column.

[0086] A third column 11-5 is also provided on one side of the spacer 11-7. The height of the third column 11-5 is shorter than the first column 11-3 provided on the same side. A conical column buckle 11-6 is provided at the end of the third column 11-5. The center of the third column 11-5 coincides with the center of the circle of the spacer 11-7.

[0087] The antenna board 4 is inserted into the third column 11 - 5 ; an antenna pressing plate 10 is provided on the upper portion of the antenna board 4 and is inserted into the third column 11 - 5 ; the antenna pressing plate 10 is fixed by a column buckle 11 - 6 .

[0088] The central angle corresponding to the spacer 11-7 is greater than 180°, that is, the spacer 11-7 is designed to have a larger area than the standard semicircle, so as to facilitate better installation of the PCB board and a larger design space for the third column 11-5.

[0089] The first column 11 - 3 and the second column 11 - 4 are integrally provided with the first bracket 11 . The ends of the first column 11 - 3 and the second column 11 - 4 extend out of the end surface of the first bracket 11 .

[0090] The second bracket 6 includes a cylindrical body 100, one end of which is provided with an X-axis stopper and a Y-axis stopper 110. The Y-axis stopper is integrally provided with a first Z-axis stopper 108. The end face of the third PCB board 5 away from the battery 7 is limited by the first Z-axis stopper 108.

[0091] In other specific implementations, a first Z-direction gear position may also be provided on the X-direction gear position to achieve substantially the same technical effect.

[0092] When the PBC is mounted on this bracket, the flexible printed circuit board (FPC) will bend in the Z-axis and radial directions. To protect the FPC from breaking or cracking, relief notches 10-7 are provided along the Z-axis at both ends of the body 100. These relief notches 10-7 are trapezoidal in shape, with the openings near the ends larger than those near the waist. This allows for quick and easy disassembly for maintenance.

[0093] The other end of the body 100 is provided with an X-axis stop and / or a Y-axis stop; a second Z-axis stop 109 is integrally provided on the X-axis stop and / or the Y-axis stop. The end surface of the fourth PCB board 8 away from the battery 7 is limited by the second Z-axis stop 109.

[0094] The X-direction gears at one end of the body 100 include a first X-direction gear 101, a second X-direction gear 102, and a third X-direction gear 103. The first X-direction gear 101 and the second X-direction gear 102 are located on both sides of the avoidance gap 10-7, and the third X-direction gear 103 is located on the other side of the avoidance gap 10-7.

[0095] The Z-direction height of the third X-direction shift position 103 is greater than the Z-direction heights of the first X-direction shift position 101 and the second X-direction shift position 102 .

[0096] The X-axis positions at the other end of the body 100 include a fourth X-axis position 104, a fifth X-axis position 105, a sixth X-axis position 106, and a seventh X-axis position 107. The fourth and fifth X-axis positions 104 and 105 are located on either side of the clearance gap 10-7; the sixth and seventh X-axis positions 106 and 107 are located on the other side of the clearance gap 10-7. A second Z-axis position 109 is integrated with the X-axis positions at this end. This end can achieve fixed left and right positions in the X and Z directions, while the Y direction can be omitted. However, for a more secure fixation, a Y-axis position can also be added to achieve the desired effect.

[0097] Since the Z-direction stop is a barbed hook structure, in order to prevent the first Z-direction stop from being deformed or broken when the PCB is clamped downward, a clearance gap 10-4 is provided on both sides of the Y-direction stop.

[0098] The outer surface of the body 100 is provided with anti-fouling ribs 10-8 along the Z direction. Therefore, after the capsule core is placed in the capsule shell, the capsule core will not rotate. Once the capsule core rotates, it may cause power failure and the performance of the capsule will be affected.

[0099] Obviously, by adopting the above structure and method for assembly, the designed height can be obtained between the upper and lower parts of the antenna plate 10 and the electronic components, the installation and disassembly are simple, the production efficiency is high, and the signal of the endoscope capsule is stable.

[0100] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. An endoscope capsule, comprising a shell (12); optical front covers (1) are fitted at both ends of the shell (12); a capsule core is disposed within the shell (12); and the capsule is characterized by: A light panel cover (2) is provided at the connection between the housing (12) and the optical front cover (1); the end faces of the light panel cover (2) at both ends abut against the PCB boards at both ends of the capsule core; a camera hole (2-1a) is provided in the middle of the light panel cover (2); an outwardly convex pressing position (2-4) is provided at the edge of the end of the light panel cover (2); the pressing position (2-4) is pressed by the end faces of the housing (12) and the optical front cover (1); A thickening block (12c) is integrally provided at the port of the shell (12); and a margin notch (12b) is provided at the port of the thickening block (12c).

2. The endoscopic capsule according to claim 1, wherein: A positioning column (2-5) is provided at the end of the lamp panel cover (2); a clearance hole (2-2) is provided at the top of the lamp panel cover (2); and a light shielding ring (2-3) is provided on the inner side of the clearance hole (2-2) of the lamp panel cover (2).

3. The endoscopic capsule according to claim 1, wherein: The shell (12) is a cylindrical shell with two ends open; at least one first limiting rib (12-3) is provided on the inner wall of the shell (12) along the axial direction; a radially extending limiting block (12-3a) is provided at one end of the first limiting rib (12-3); and a first limiting end surface (12-3b) inside the limiting block (12-3a) corresponds to a PCB board outside the capsule core.

4. The endoscopic capsule according to claim 3, wherein: The inner wall of the shell (12) is provided with a second limiting rib (12-2) extending axially from the end surface (12-1a) of the shell (12) to the middle of the shell (12) opposite to the first limiting rib (12-3); The second limiting end surface (12-2a) at the inner end of the second limiting rib (12-2) corresponds to the end surface (H) of the capsule core mounting bracket.

5. The endoscopic capsule according to claim 1, wherein: The capsule core comprises a battery (7) and a first PCB board (9), a second PCB board (3), a third PCB board (5), a fourth PCB board (8), and a fifth PCB board (14) connected in sequence via an FPC; the third PCB board (5) is connected to an antenna board (4) via an FPC; A first camera (15) and a second camera (16) are respectively provided on the second PCB board (3) and the fourth PCB board (8); The second PCB board (3) and the antenna board (4) are fixed by a first bracket (11); the third PCB board (5) and the fourth PCB board (8) are fixed by a second bracket (6); the first PCB board is mounted on the first camera (15); and the fifth PCB board (5) is mounted on the second camera (16); The battery (7) is arranged between the third PCB board (5) and the fourth PCB board (8).

6. The endoscopic capsule according to claim 5, wherein: The first bracket (11) is a C-shaped structure; a spacer (11-7) is provided in the middle of the first bracket (11); at least one first column (11-3) is provided on one side surface of the spacer (11-7); at least one second column (11-4) is provided on the other side surface of the spacer (11-7); and conical strong tripping buckles (11-2) are provided at the ends of the first column (11-3) and the second column (11-4). The second PCB board (3) is inserted into the first column (11-3) and fixed by the strong release (11-2); the third PCB board (5) is inserted into the second column (11-4) and fixed by the strong release (11-2); A third column (11-5) is also provided on one side surface of the spacer (11-7); the height of the third column (11-5) is smaller than the first column (11-3) provided on the same side; and a conical column buckle (11-6) is provided at the end of the third column (11-5); The antenna plate (4) is inserted into the third column (11-5); an antenna pressing plate (10) inserted into the third column (11-5) is provided on the upper portion of the antenna plate (4); and the antenna pressing plate (10) is fixed by the column buckle (11-6).

7. The endoscopic capsule according to claim 5, wherein: The second bracket (6) comprises a cylindrical body (100); an X-direction stop and a Y-direction stop are provided at one end of the body (100); a first Z-direction stop (108) is integrally provided on the X-direction stop and / or the Y-direction stop at the end; an end face of the third PCB board (5) away from the battery (7) is limited by the first Z-direction stop (108); The other end of the body (100) is provided with an X-direction stop and / or a Y-direction stop; a second Z-direction stop (109) is integrally provided on the X-direction stop and / or the Y-direction stop at this end; the end surface of the fourth PCB board (8) away from the battery (7) is limited by the second Z-direction stop (109); One end or both ends of the body (100) are provided with an avoidance notch (10-7) along the Z direction; The X-direction gears located at one end of the body (100) include a first X-direction gear (101), a second X-direction gear (102), and a third X-direction gear (103); the first X-direction gear (101) and the second X-direction gear (102) are located on both sides of the avoidance gap (10-7); and the third X-direction gear (103) is located on the other side relative to the avoidance gap (10-7); The Z-direction height of the third X-direction gear position (103) is greater than the Z-direction heights of the first X-direction gear position (101) and the second X-direction gear position (102); The X-direction gears located at the other end of the body (100) include a fourth X-direction gear (104), a fifth X-direction gear (105), a sixth X-direction gear (106), and a seventh X-direction gear (107); the fourth X-direction gear (104) and the fifth X-direction gear (105) are located on both sides of the avoidance gap (10-7); and the sixth X-direction gear (106) and the seventh X-direction gear (107) are located on the other side relative to the avoidance gap (10-7).

8. The endoscopic capsule according to claim 7, wherein: The outer surface of the body (100) is provided with anti-fouling ribs (8) along the Z direction.

9. A method for assembling an endoscope capsule, implemented using the endoscope capsule according to any one of claims 1 to 8, characterized in that: The following steps are involved: 1) Assemble the capsule core 1a) providing a first PCB board, a second PCB board, a third PCB board, a fourth PCB board, and a fifth PCB board connected in sequence via an FPC; the third PCB board is connected to an antenna board via the FPC; A C-shaped first bracket is provided; the first bracket is a thin-walled, through-hole structure with a partition disposed in the middle; one surface of the partition has a third PCB board limiting component and an antenna board limiting component; the limiting height of the antenna board limiting component is less than the limiting height of the third PCB board limiting component; the other surface of the partition has a second PCB board limiting component; A cylindrical second bracket is provided; one end of the second bracket has a limiting component in the X direction, the Y direction, and the Z direction, and the other end has a limiting component in the X direction, the Y direction, and the Z direction; 1b) Installing a battery in the second bracket; springs are provided on both end surfaces of the battery; 1c) The third PCB is installed into one end of the second bracket and is limited by the limiting components in the X, Y and Z directions of the end; 1d) Pass the FPC between the third PCB and the fourth PCB from one end of the second bracket to the other end; 1e) The fourth PCB is installed into the other end of the fixing bracket and is limited by the limiting components in the X direction, Y direction, or Z direction of the other end; 1f) Snap the third PCB board's limiting component into the third PCB board; 1g) Folding the antenna board into the first bracket and snapping the antenna board into the antenna board limiting component; 1h) Snap the second PCB into the second PCB limiting component; 2) Assemble the capsule 2a) inserting the capsule core into the shell and axially restraining the capsule core; 2b) Installing a cover body on the fifth PCB board and the fourth PCB board; an end of the cover body abuts against the fourth PCB board, and the end has a radial dimension extending to a pressing position of the outer shell connection portion; and the optical front cover is pressed against the pressing position and then engaged with the outer shell; 2c) Installing a cover body on the first PCB board and the second PCB board; an end of the cover body abuts against the second PCB board, and the end has a radial dimension extending to a pressing position of the shell connection part; and the optical front cover is pressed against the pressing position and then matched with the shell.

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