Endoscope host case, endoscope host and endoscope device

By setting a positioning structure between the panel and the main frame, the panel can be quickly aligned and fixed, which solves the problem of low panel assembly efficiency in the prior art and improves assembly efficiency.

CN224023535UActive Publication Date: 2026-03-24HUNAN VATHIN MEDICAL INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

The existing endoscope main unit chassis has low panel assembly efficiency, requiring repeated adjustments to the panel position to align with the assembly holes, resulting in long assembly time.

Method used

A first positioning structure and a second positioning structure are set between the panel and the main frame. The positioning fit ensures that the assembly holes are aligned, reducing the position adjustment time.

Benefits of technology

It improves panel assembly efficiency, reduces panel position adjustment time, and simplifies the assembly process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an endoscope host case, an endoscope host and an endoscope device, and belongs to the technical field of endoscopes. The host case comprises a panel and a host frame, the panel is provided with first assembly holes, the host frame is provided with second assembly holes, the second assembly holes and the first assembly holes are arranged in a one-to-one correspondence mode, and the host frame is provided with a containing cavity used for containing host devices; one of the panel and the host frame is provided with a first positioning structure, the other one of the panel and the host frame is provided with a second positioning structure, and the first positioning structure can be in positioning fit with the second positioning structure so as to position the mounting position of the panel on the host frame, so that the first assembling hole and the second assembling hole which correspond to each other are aligned. By means of positioning matching of the first positioning structure and the second positioning structure, the installation position of the panel on the host frame is positioned, the first assembling hole and the second assembling hole which correspond to each other are aligned, the position of the panel does not need to be adjusted repeatedly, and the assembling efficiency of the panel is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to endoscope technical field, concretely relates to a kind of endoscope host computer case, endoscope host computer and endoscope device. BACKGROUND

[0002] Endoscope host computer is the core equipment of endoscope system, mainly responsible for image acquisition, processing, display and the control of light source and peripheral equipment etc.

[0003] Endoscope host computer includes case and the electrical elements etc. of being arranged in case composition. In prior art, host computer case generally includes panel and host computer frame, panel is fixed to host computer frame, host computer frame has host computer chamber, electrical elements are installed in host computer chamber.

[0004] When panel is assembled to host computer frame, assembler repeatedly adjusts the position of panel, aligns panel with host computer frame, then uses screw etc. Connecting piece to fix panel to host computer frame, and assembly efficiency is lower. UTILITY MODEL CONTENT

[0005] The purpose of the present application is to provide an endoscope host computer case, endoscope host computer and endoscope device, solve the above technical problems existing in prior art.

[0006] The present application is realized as follows:

[0007] Firstly, the present application provides an endoscope host computer case, including panel and host computer frame, panel is provided with first assembly hole, host computer frame is provided with second assembly hole, second assembly hole is set up one-to-one with first assembly hole, and host computer frame has receiving cavity, and receiving cavity is used to accommodate host device;One of panel and host computer frame is provided with first positioning structure, and the other is provided with second positioning structure, first positioning structure can be positioned with second positioning structure, to position the installation position of panel on host computer frame, so that corresponding first assembly hole and second assembly hole are aligned.

[0008] Secondly, the present application provides an endoscope host computer, including the endoscope host computer case provided in the first aspect.

[0009] Thirdly, the present application provides an endoscope device, including the endoscope host computer provided in the second aspect.

[0010] The technical scheme provided by the present application can achieve the following beneficial effects:

[0011] In the application, by setting the first positioning structure and the second positioning structure between the panel and the mainframe frame, in the process of assembling the panel to the mainframe frame, the first positioning structure and the second positioning structure are used to position the installation position of the panel on the mainframe frame, so that the first assembly hole and the second assembly hole corresponding to each other are aligned, without repeatedly adjusting the position of the panel, the connecting piece can be connected between the panel and the mainframe frame to fix the panel to the mainframe frame, the time spent on adjusting the position of the panel is reduced, and the assembly efficiency of the panel is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application or the prior art. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0013] Figure 1 is a split schematic view of an endoscope host case provided by some embodiments of the application;

[0014] Figure 2 is a detail view of A in the application about Figure 1 ;

[0015] Figure 3 is a detail view of B in the application about Figure 1 ;

[0016] Figure 4 is a detail view of C in the application about Figure 1 ;

[0017] Figure 5 is a detail view of D in the application about Figure 1 ;

[0018] Figure 6 is a structural schematic view of an endoscope host case provided by some embodiments of the application Figure 1 ;

[0019] Figure 7 is a detail view of E in the application about Figure 6 ;

[0020] Figure 8 is a structural schematic view of an endoscope host case provided by some embodiments of the application Figure 2 ;

[0021] Figure 9 is a detail view of F in the application about Figure 8 ;

[0022] Figure 10is a split structure schematic diagram of an endoscope host frame provided by some embodiments of the present application;

[0023] Figure 11 is a detail view of G in the present application; Figure 10

[0024] Figure 12 is a detail view of H in the present application; Figure 10

[0025] Figure 13 is a structure schematic diagram of an endoscope host case provided by some embodiments of the present application Figure 3 .

[0026] In the figure: 100-panel, 110-first assembly hole, 120-assembly plate, 200-host frame, 210-second assembly hole, 220-receiving cavity, 230-mounting frame, 240-movable cover plate, 310-connection arm, 311-bent end, 320-stiffener, 330-spring piece, 410-positioning through hole, 411-folded part, 420-clamping groove. DETAILED DESCRIPTION

[0027] The following description provides many different embodiments, or examples, for implementing different features of the application. Specific examples are described in the following detail. These are, of course, merely examples and are not intended to limit the application from that described in the specification or claims. One skilled in the art will appreciate that the specification gives out many different embodiments or examples, and the elements and / or arrangements of each example provide support for combinations, permutations, additions, and subtractions other examples that are not expressly described. For example, a principle feature of an example can be applied to other examples, even if it is not specifically stated in the other examples.

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0029] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents a "or" relationship between the front and rear associated objects.

[0030] The embodiments of the present application provide an endoscope host case, referring to Figure 1 ​​As shown, the endoscope mainframe comprises a panel 100 and a mainframe 200. The mainframe 200 is the main structure of the mainframe, and the mainframe 200 has a receiving cavity 220 for accommodating the main device. The electronic components and corresponding mounting structures included in the endoscope mainframe are mounted inside the receiving cavity 220. The panel 100 is mounted on the mainframe 200, and the panel 100 is mainly used for mounting the display screen, buttons and other components.

[0031] The panel 100 is provided with first assembly holes 110, and the mainframe 200 is provided with second assembly holes 210. The first assembly holes 110 and the second assembly holes 210 are arranged one by one. After the panel 100 is installed at a suitable position of the mainframe 200, the corresponding first assembly holes 110 and second assembly holes 210 are aligned, which facilitates the subsequent assembly personnel to use the connecting pieces to pass through the first assembly holes 110 and the second assembly holes 210 in sequence, and fix the panel 100 and the mainframe 200.

[0032] One of the panel 100 and the mainframe 200 is provided with a first positioning structure, and the other is provided with a second positioning structure. The first positioning structure can be positioned and matched with the second positioning structure to position the installation position of the panel 100 on the mainframe 200, so that the corresponding first assembly holes 110 and second assembly holes 210 are aligned, which facilitates subsequent assembly.

[0033] During the assembly of the panel 100, the installation position of the panel 100 is determined by the positioning and matching between the first positioning structure and the second positioning structure, and the panel 100 is quickly installed at a suitable position of the mainframe 200. Referring to Figure 13 During the installation of the panel 100, the position of the panel 100 does not need to be adjusted repeatedly, thereby saving the time spent on adjusting the panel 100 and improving the assembly efficiency of the panel 100.

[0034] The first positioning structure and the second positioning structure can have various embodiments. In some embodiments, the first positioning structure can be a protruding structure, and the second positioning structure can be a groove structure. The protruding structure can be clamped into the groove structure, thereby realizing positioning and matching. In other embodiments, the first positioning structure and the second positioning structure can also be structures that engage with each other. After the two structures engage with each other, the position of the panel 100 on the mainframe 200 can be positioned.

[0035] In some embodiments of the present application, referring to Figure 1 and Figure 2 The first positioning structure comprises a connecting arm 310. Referring to Figure 1 and Figure 3 The second positioning structure comprises a positioning through hole 410. Referring to Figure 6 and Figure 7As shown, the connecting arm 310 is used to extend into the positioning through hole 410. The relative position of the connecting arm 310 and the positioning through hole 410 is determined, i.e. the installation position of the panel 100 on the mainframe 200 is determined.

[0036] Further, in the case that the connecting arm 310 extends into the positioning through hole 410, the hole wall of the positioning through hole 410 limits the connecting arm 310 along the axial direction of the positioning through hole 410, so as to prevent the connecting arm 310 from being separated from the positioning through hole 410. The connecting arm 310 is limited by the positioning through hole 410, and the connecting arm 310 cannot be separated from the positioning through hole 410 without external force. The relative position of the connecting arm 310 and the positioning through hole 410 is stable, so as to preliminarily fix the relative position of the panel 100 and the mainframe 200, and facilitate the position stability of the panel 100 and the mainframe 200, so as to facilitate the subsequent assembly of the connecting member.

[0037] In some embodiments, the connecting arm 310 can be fixed to the mainframe 200, and the positioning through hole 410 is arranged on the panel 100. However, since the panel 100 has a great influence on the appearance of the mainframe, the positioning through hole 410 arranged on the panel 100 is not conducive to the overall appearance of the mainframe. In other embodiments, the connecting arm 310 can also be fixedly installed on the panel 100, and the positioning through hole 410 is arranged on the mainframe 200. After the connecting arm 310 extends into the positioning through hole 410, the connecting arm 310 can pass through the positioning through hole 410 and extend into the receiving cavity 220 of the mainframe 200.

[0038] The positioning through hole 410 is arranged at the side wall of the mainframe 200, and the mainframe 200 is internally provided with a receiving cavity 220. The positioning through hole 410 is in communication with the receiving cavity 220, and the receiving cavity 220 provides more sufficient assembly space for the connecting arm 310. The length of the connecting arm 310 can be set to be longer, which is more conducive to the limiting cooperation of the connecting arm 310 and the positioning through hole 410.

[0039] The mainframe 200 is generally formed by the butt joint of the movable cover plate 240 and the mounting frame 230. For reference, Figure 6 , Figure 8 and Figure 10 . The mounting frame 230 is hollow inside and has an opening in communication with the external environment. The movable cover plate 240 covers the opening area of the mounting frame 230, and the movable cover plate 240 and the mounting frame 230 are butt jointed to form the receiving cavity 220.

[0040] During the assembly of panel 100, the main unit frame 200 is not fully assembled, and its interior can be directly observed. The connecting arm 310 extends into the receiving cavity 220, allowing assembly personnel to observe through the opening in the mounting frame 230 whether the connecting arm 310 is properly installed, thus ensuring a stable connection between the connecting arm 310 and the positioning through hole 410. After the main unit chassis is assembled, the receiving cavity 220 is closed, with part of the connecting arm 310 located within it. The main unit frame 200 can protect the connecting arm 310, reducing the impact of external environmental factors on it.

[0041] The connecting arm 310 is axially fitted with the positioning through hole 410 and limited within the hole wall of the positioning through hole 410. In some embodiments, the connecting arm 310 may be interference-fitted with the positioning through hole 410, and the connecting arm 310 may be snapped and fixed within the positioning through hole 410. When it is necessary to disassemble the connecting arm 310, a relatively strong force must be applied to the connecting arm 310 to remove it from the positioning through hole 410.

[0042] In other embodiments, the portion of the connecting arm 310 extending into the receiving cavity 220 may be bent, thereby limiting its engagement with the wall of the positioning through hole 410. (See reference) Figure 2 and Figure 7 As shown, the end of the connecting arm 310 away from the panel 100 is bent to form a bent end 311. The bent end 311 is used to limit the engagement with the wall of the positioning through hole 410 along the axial direction of the positioning through hole 410.

[0043] The bent end 311 is formed by bending part of the connecting arm 310. When inserting the connecting arm 310 into the positioning through hole 410, the connecting arm 310 needs to be tilted first, and the bent end 311 is passed through the positioning through hole 410. Then the position of the connecting arm 310 is adjusted so that the bent end 311 can be limited and matched with the hole wall of the positioning through hole 410 along the axial direction of the positioning through hole 410, thereby completing the installation and positioning of the panel 100.

[0044] The bending end 311 is easier to assemble than the connecting arm 310 and the positioning through hole 410 with an interference fit. In addition, the part of the main frame 200 that contacts the bending end 311 is less likely to deform.

[0045] In some preferred embodiments, reference Figure 3 , Figure 6 , Figure 7 , Figure 10 and Figure 11 As shown, a portion of the wall of the positioning through-hole 410 is folded towards the receiving cavity 220 to form a folded portion 411. When the connecting arm 310 extends into the positioning through-hole 410, refer to... Figure 6 and Figure 7As shown, the folding part 411 is in abutting fit with the bent end 311.

[0046] The folding part 411 is formed by processing part of the hole wall of the positioning through hole 410, the connection between the folding part 411 and the main frame 200 is more stable, and the processing difficulty is reduced, which is conducive to improving the processing efficiency. In addition, the surface of the folding part 411 close to the center of the positioning through hole 410 can be in contact with the connecting arm 310, the contact area with the connecting arm 310 is increased, the connecting arm 310 is supported, and the connection stability between the connecting arm 310 and the positioning through hole 410 is further improved.

[0047] The preliminary installation between the panel 100 and the main frame 200 is realized by the connection between the connecting arm 310 and the positioning through hole 410. In some embodiments, the connecting arm 310 is provided with a reinforcing rib 320, as shown in Figure 2 and Figure 7 As shown, the reinforcing rib 320 can enhance the structural strength of the connecting arm 310, so that the connection between the connecting arm 310 and the positioning through hole 410 is more stable.

[0048] As shown in Figure 5 In some embodiments of the present application, the panel 100 is provided with an assembly plate 120, and the first assembly hole 110 is arranged on the assembly plate 120. As shown in Figure 1 As shown, the assembly plate 120 and the connecting arm 310 are located on the same surface of the panel 100, and when the panel 100 is assembled, it is more convenient for the assembly personnel to observe whether the connecting arm 310 and the first assembly hole 110 are assembled in place. The assembly plate 120 can be a plate structure protruding outward from the panel 100. The assembly plate 120 is generally arranged at the circumferential side wall of the panel 100, so as to avoid affecting the cooperation between the connecting arm 310 and the positioning through hole 410.

[0049] In other embodiments of the present application, the first positioning structure includes a spring piece 330, the spring piece 330 is connected with the panel 100 or the main frame 200, and the spring piece 330 can be deformed under external force to change position, as shown in Figure 4 and Figure 11 As shown, the second positioning structure includes a clamping groove 420, as shown in Figure 5 As shown, the spring piece 330 can be deformed by extrusion during the assembly of the panel 100 and the main frame 200 to be clamped into the clamping groove 420, and the spring piece 330 can be limited in cooperation with the clamping groove 420 in the circumferential direction of the clamping groove 420, as shown in Figure 5

[0050] ​The spring 330 is in different positions before and after deformation. During the assembly of the panel 100 and the main frame 200, before the spring 330 is positioned between them, the spring 330 does not deform and is on the assembly path. As the assembly progresses, the spring 330 is gradually squeezed between the panel 100 and the main frame 200, and deforms to avoid the assembly path of the spring 330 and the main frame 200. At the same time, the snap-fit ​​groove 420 gradually approaches the spring 330. When the snap-fit ​​groove 420 moves above the spring 330, the squeezing effect on the spring 330 disappears, the spring 330 recovers its deformation, moves into the snap-fit ​​groove 420, and engages with the snap-fit ​​groove 420.

[0051] In some embodiments, reference Figure 4 As shown, the spring clip 330 is mounted on the main frame 200. (Reference) Figure 5 As shown, the snap-fit ​​groove 420 is disposed on the panel 100. During the assembly process of the panel 100 and the main frame 200, the main frame 200 and the panel 100 gradually align. The panel 100 presses against the spring piece 330, causing the spring piece 330 to deform and move closer to the main frame 200, leaving space for the panel 100 to move. This continues until the snap-fit ​​groove 420 moves above the spring piece 330, at which point the pressing effect of the panel 100 on the spring piece 330 disappears, and the spring piece 330 returns to its original shape and moves into the snap-fit ​​groove 420, engaging with it. In some other embodiments, the spring piece 330 may also be mounted on the panel 100, and the snap-fit ​​groove 420 may be disposed on the main frame 200.

[0052] In some specific implementations, refer to Figure 4 As shown, the spring clip 330 is part of the main frame 200. One end of the spring clip 330 is fixed to the main frame 200, and the other end is a free end that bends outward from the main frame 200, so that part of the spring clip 330 protrudes from the main frame 200. When the spring clip 330 is engaged with the slot 420, refer to... Figure 9 As shown, the spring 330 prevents the panel 100 from separating from the main frame 200. In other embodiments, the spring 330 is movably disposed from the main frame 200, and the spring 330 can move relative to the main frame 200 as a whole. When pressed by the panel 100, the spring 330 moves inward toward the main frame 200, leaving space for the panel 100 to move. After the pressing effect disappears, the spring 330 pops outward toward the main frame 200.

[0053] In the case that the elastic sheet 330 is installed on the panel 100, the elastic sheet 330 is arranged adjacent to at least one first assembly hole 110. Arranging the elastic sheet 330 adjacent to the first assembly hole 110 facilitates the assembler to observe whether the elastic sheet 330 is installed in place and whether the first assembly hole 110 is aligned. In the case that the elastic sheet 330 is installed on the mainframe 200, as shown in FIG. 16, the elastic sheet 330 is arranged adjacent to at least one second assembly hole 210, facilitating the assembler to observe whether the elastic sheet 330 is installed in place and whether the first assembly hole 110 is aligned. As shown in FIGS. 17 and 18, in the case that the elastic sheet 330 is installed in the clamping groove 420, the first assembly hole 110 and the second assembly hole 210 are aligned. Figure 4 Figure 8 Figure 9

[0054] In some preferred embodiments, the elastic sheet 330 is located on the mainframe 200, the clamping groove 420 is located on the panel 100, and the groove bottom of the clamping groove 420 penetrates the panel 100. In the case that the elastic sheet 330 is clamped into the clamping groove 420, the clamping groove 420 is located on the side of the elastic sheet 330 away from the accommodation cavity 220. During assembly, the clamping groove 420 is located above the elastic sheet 330, and the clamping groove 420 has no groove bottom. The assembler can directly observe from the outside whether the elastic sheet 330 is clamped into the clamping groove 420, facilitating the determination of whether the elastic sheet 330 is assembled in place.

[0055] The groove bottom of the clamping groove 420 penetrating the panel 100 means that the part of the structure of the panel 100 where the clamping groove 420 is arranged is penetrated. In the case that the panel 100 is connected with the assembly plate 120 and the assembly plate 120 is provided with the first assembly hole 110, the clamping groove 420 can be arranged on the assembly plate 120 and penetrate the assembly plate 120, as shown in FIG. 17. Figure 5

[0056] The first positioning structure provided by the embodiments of the present application includes two structures of the elastic sheet 330 and the connecting arm 310. The elastic sheet 330 and the connecting arm 310 can exist simultaneously. The second positioning structure includes the positioning through hole 410 and the clamping groove 420, which need to be arranged one by one corresponding to the first positioning structure.

[0057] In the case that the first positioning structure simultaneously includes the elastic sheet 330 and the connecting arm 310, the two can be simultaneously arranged on the panel 100 or the mainframe 200, or the elastic sheet 330 is arranged on one of the mainframe 200 and the panel 100, and the connecting arm 310 is arranged on the other. The second positioning structure is arranged one by one corresponding to the first positioning structure.

[0058] The embodiments of the present application also provide an endoscope mainframe, which includes the endoscope mainframe case provided by any of the embodiments.

[0059] ​​​​Some embodiments of the present application also provide an endoscope device, comprising the endoscope host provided by any of the above embodiments. In use, the endoscope is connected to the electronic components inside the endoscope host cabinet. The endoscope device according to the embodiments of the present application can be a bronchoscope, a nephroscopy, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a nasoscope, an oral mirror, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not specifically limit the type of endoscope.

[0060] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0061] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An endoscope main unit chassis, characterized in that, The device includes a panel (100) and a main frame (200). The panel (100) is provided with a first mounting hole (110), and the main frame (200) is provided with a second mounting hole (210). The second mounting hole (210) corresponds to the first mounting hole (110) one by one. The main frame (200) has a receiving cavity (220) for accommodating main components. One of the panel (100) and the host frame (200) is provided with a first positioning structure, and the other is provided with a second positioning structure. The first positioning structure can cooperate with the second positioning structure to position the installation position of the panel (100) on the host frame (200) so that the corresponding first mounting hole (110) and second mounting hole (210) are aligned.

2. The endoscope main unit chassis according to claim 1, characterized in that, The first positioning structure includes a connecting arm (310), and the second positioning structure includes a positioning through hole (410). The connecting arm (310) is used to extend into the positioning through hole (410). When the connecting arm (310) extends into the positioning through hole (410), the hole wall of the positioning through hole (410) is limited and engaged with the connecting arm (310) along the axial direction of the positioning through hole (410) to prevent the connecting arm (310) from disengaging from the positioning through hole (410).

3. The endoscope main unit chassis according to claim 2, characterized in that, The connecting arm (310) is disposed on the panel (100), the positioning through hole (410) is disposed on the main frame (200), and the connecting arm (310) can pass through the positioning through hole (410) and extend into the receiving cavity (220) of the main frame (200).

4. The endoscope main unit chassis according to claim 3, characterized in that, The connecting arm (310) is bent at one end away from the panel (100) to form a bent end (311), which is used to limit the engagement with the wall of the positioning through hole (410) along the axial direction of the positioning through hole (410).

5. An endoscope main unit chassis according to claim 4, characterized in that, Part of the hole wall of the positioning through hole (410) is folded toward the receiving cavity (220) to form a folded portion (411). When the connecting arm (310) is inserted into the positioning through hole (410), the folded portion (411) abuts against the bent end (311).

6. An endoscope main unit chassis according to claim 3, characterized in that, The connecting arm (310) is provided with a reinforcing rib (320); And / or, the panel (100) is provided with a mounting plate (120), the first mounting hole (110) is provided on the mounting plate (120), and the mounting plate (120) and the connecting arm (310) are both located on the same surface of the panel (100).

7. An endoscope main unit chassis according to claim 1, characterized in that, The first positioning structure includes a spring piece (330), which can deform under external force to change its position. The second positioning structure includes a snap-fit ​​groove (420). The spring piece (330) can be squeezed and deformed during the assembly of the panel (100) and the main frame (200) to snap into the snap-fit ​​groove (420), and the spring piece (330) can be limited and engaged with the snap-fit ​​groove (420) in the circumferential direction.

8. An endoscope main unit chassis according to claim 7, characterized in that, When the spring (330) is mounted on the panel (100), the spring (330) is disposed adjacent to at least one of the first mounting holes (110); when the spring (330) is mounted on the main frame (200), the spring (330) is disposed adjacent to at least one of the second mounting holes (210). And / or, the spring (330) is located on the main frame (200), the snap-fit ​​groove (420) is located on the panel (100), and the bottom of the snap-fit ​​groove (420) penetrates the panel (100). When the spring (330) is snapped into the snap-fit ​​groove (420), the snap-fit ​​groove (420) is located on the side of the spring (330) away from the receiving cavity (220).

9. An endoscope main unit, characterized in that, Includes the endoscope main unit chassis as described in any one of claims 1-8.

10. An endoscope device, characterized in that, Includes the endoscope host as described in claim 9.