Cold light source knob assembly structure of endoscope and host shell

Abstract

The invention discloses an endoscope cold light source knob assembly structure and a host shell, and relates to the technical field of endoscope hosts, the knob assembly structure comprises a front cover and a knob, the back of the front cover is connected with a potentiometer assembly and a light source heat dissipation assembly, and the potentiometer assembly and the light source heat dissipation assembly are independent; the knob is located on the front face of the front cover, a first mounting hole and a second mounting hole are formed in the front cover, a potentiometer shaft of the potentiometer assembly is located at the first mounting hole, and a light transmitting bundle connector of the light source heat dissipation assembly is located at the second mounting hole. And the knob is glued with the potentiometer shaft. The potentiometer assembly and the light source heat dissipation assembly which are independent are connected to the back face of the front cover, compared with an integrated knob assembly structure, the knob does not need to be provided with parts such as springs and steel balls, and the knob is simple in structure and convenient to assemble.

Description

TECHNICAL FIELD

[0001] The application discloses an endoscope cold light source knob assembly structure and a main machine shell and belongs to the technical field of endoscopes. BACKGROUND

[0002] The endoscope cold light source device is a low-heat high-precision medical lighting device and is a key component of medical imaging and fine surgery. The development of the light source has gone through the stages of halogen, xenon lamp and LED, and currently, the endoscope cold light source device mostly uses LED as the light source. The brightness adjustment of the endoscope cold light source is realized through the knob on the shell (rotating the knob to change the resistance of the potentiometer to realize the brightness adjustment of the light source).

[0003] At present, the knob assembly structure for adjusting the cold light source is relatively complex. For example, the patent with the announcement number CN219048395U provides a light guide beam connecting device for a cold light source and the cold light source, and the rotary encoder and the knob for adjusting the brightness of the light source are integrated at the light guide beam interface. Although this design can save the panel space, the integrated design not only leads to a complex knob assembly structure (including spring, steel ball and rotary encoder and the like), but also is relatively cumbersome when assembling the knob. How to provide a simple and reliable knob assembly structure is a problem to be solved. SUMMARY

[0004] To solve the problems in the prior art, the application provides an endoscope cold light source knob assembly structure and a main machine shell, which are simple in structure and convenient to assemble.

[0005] Technical scheme: To achieve the above-mentioned application purposes, the application adopts the following technical scheme: In a first aspect, the application provides an endoscope cold light source knob assembly structure, which comprises a front cover and a knob. The back surface of the front cover is connected with a potentiometer assembly and a light source heat dissipation assembly, and the potentiometer assembly and the light source heat dissipation assembly are independent of each other. The knob is located on the front surface of the front cover. The front cover is provided with a first mounting hole and a second mounting hole. The potentiometer shaft of the potentiometer assembly is located at the first mounting hole, and the light guide beam connector of the light source heat dissipation assembly is located at the second mounting hole. The knob and the potentiometer shaft are glued together.

[0006] Preferably, the independent potentiometer assembly and the independent light source heat dissipation assembly mean that they are not arranged together but are arranged separately. The direct connection between the knob and the potentiometer shaft means that there is no other intermediate connecting piece between them.

[0007] Preferably, the potentiometer shaft is at the first mounting hole, which can be that the potentiometer shaft is located in the first mounting hole and the end thereof does not extend out of the first mounting hole, or the potentiometer shaft is located in the first mounting hole and the end thereof extends out of the first mounting hole. Similarly, the light guide connector is at the second mounting hole, which can be that the light guide connector is located in the second mounting hole and the end thereof does not extend out of the second mounting hole, or the light guide connector is located in the second mounting hole and the end thereof extends out of the second mounting hole.

[0008] In a specific embodiment, the knob has a mounting portion, the potentiometer shaft is inserted into the mounting hole of the mounting portion, and the outer wall of the potentiometer shaft and the inner portion of the mounting portion are glued.

[0009] Preferably, the mounting portion and the knob are integrally formed by injection molding, which facilitates the manufacturing of the knob.

[0010] In a specific embodiment, the mounting portion of the knob is sleeved with a first bearing, and the outer wall of the first bearing is attached to the inner wall of the first mounting hole; the mounting portion of the knob is in a stepped shape, and the first mounting hole is a stepped hole.

[0011] The first mounting hole is a stepped hole, and the first bearing can be installed at the step to limit the first bearing and ensure the fixing effect of the first bearing, thereby ensuring the mounting effect of the knob.

[0012] In a specific embodiment, at least a portion of the potentiometer shaft extends out of the first mounting hole.

[0013] The potentiometer shaft of the present application extends out of the first mounting hole, which facilitates the mounting of the knob and makes the knob easier to be inserted and matched with the potentiometer shaft.

[0014] In a second aspect, the present application provides an endoscope cold light source knob assembly structure, the front cover is provided with a second mounting hole, and the light guide connector of the light source heat dissipation assembly is at the second mounting hole; the knob is coaxially connected to the outer end portion of the light guide connector, and the knob is connected with the potentiometer shaft through a transmission member.

[0015] Preferably, the knob is a hollow knob, which can realize the coaxial connection of the knob and the light guide connector.

[0016] In a specific embodiment, the transmission member includes a first gear and a second gear that are engaged with each other, the first gear is fixed to the outer periphery of the potentiometer shaft, the second gear is rotatably arranged on the outer periphery of the light guide connector through a second bearing, and the second gear is connected with the end portion of the knob.

[0017] In one specific embodiment, the second gear comprises a gear body and a connecting sleeve, the connecting sleeve is annular, the connecting sleeve is fixedly connected to one side of the gear body, and the connecting sleeve and the gear body are coaxially arranged; the connecting sleeve is connected with the knob.

[0018] Preferably, the connecting sleeve comprises a plurality of annular plates, and the plurality of annular plates enclose the annular connecting sleeve.

[0019] The connecting sleeve and the gear body are preferably integrally formed, and can be integrally cast, integrally injection molded or 3D printed.

[0020] In one specific embodiment, the first gear and the front cover are limited by a first bearing.

[0021] In a third aspect, the present application provides a host shell comprising the knob assembly structure of any one of the first aspect and the second aspect, the knob assembly structure further comprising a U-shaped lower shell and a U-shaped upper shell, the lower shell and the upper shell are slidingly connected, and the front cover is connected to the outer side of the lower shell.

[0022] Preferably, the sliding connection of the lower shell and the upper shell means that the two are slidingly fitted when assembled, which can be that the lower shell slides on the upper shell, or that the upper shell slides on the lower shell.

[0023] In one specific embodiment, the lower shell comprises a bottom plate, a rear side plate connected to one end of the bottom plate, and a front side plate connected to the other end of the bottom plate, a bent support plate is arranged on the top of the rear side plate, a limiting socket is arranged on the top of the front side plate, the bent support plate and the limiting socket are in the same plane, and the front cover is connected to the outer side of the front side plate; the upper shell comprises a top plate and side plates connected to both sides of the top plate, and an alignment limiting structure is connected to the bottom surface of the top plate; in the initial sliding position, the alignment limiting structure is in contact with the bent support plate, and in the terminal sliding position, the alignment limiting structure is inserted into the limiting socket.

[0024] In one specific embodiment, the alignment limiting structure comprises a connecting plate, a transition plate and a limiting plate; the connecting plate is connected to the bottom surface of the top plate, the limiting plate is connected through the transition plate and the connecting plate, and the limiting plate is parallel to the top plate; at least a part of the limiting plate is located outside the upper shell, in the initial sliding position, the limiting plate is in contact with the bent support plate, and in the terminal sliding position, the limiting plate is inserted into the limiting socket.

[0025] In one specific embodiment, the top end of the rear side plate is connected with a bent plate, which is perpendicular to the rear side plate; the bent plate is located on both sides of the bent support plate, and the horizontal height of the bent plate is higher than that of the bent support plate, and the bent plate and the bent support plate on both sides form a limiting area P, and the alignment limiting structure is located in the limiting area P in the initial sliding position.

[0026] Preferably, the alignment limiting structure is located in the limiting area P, i.e. the limiting plate is located in the limiting area P. The limiting plate can be in contact with the bent support plate, or the limiting plate can be in contact with both the bent support plate and the bent plate on both sides.

[0027] In one specific embodiment, the bottom end surface of the side plate is connected with a lower baffle plate, which is perpendicular to the side plate; the lower baffle plate is provided with a through hole, and the bottom plate is provided with a screw hole matched with the through hole; in the final sliding position, the screw is connected into the screw hole through the through hole.

[0028] In one specific embodiment, a reinforcing rib is further included; the lower shell includes a bottom plate, a rear side plate connected to one end of the bottom plate, and a front side plate connected to the other end of the bottom plate; one end of the reinforcing rib is connected to the top end of the rear side plate, and the other end is connected to the top end of the front side plate; the reinforcing rib is arranged along the length direction of the bottom plate.

[0029] Further, based on the host shell provided in the third aspect, the application further provides an assembly method of the shell, which includes the following steps: independently installing a potentiometer assembly and a light source heat dissipation assembly on the back of the front cover, and making a potentiometer shaft of the potentiometer assembly extend out of a first mounting hole; gluing and fixing a knob with the potentiometer shaft; installing the front cover on the outside of the front side plate of the lower shell; and assembling the upper shell and the lower shell through sliding cooperation, so that the limiting plate is inserted into the limiting socket. The present application adopts the form of independent design of the potentiometer assembly and the light source heat dissipation assembly, has simple structure and high stability, and adopts the sliding cooperation assembly mode, thereby improving the assembly efficiency of the shell. Advantageous effects

[0030] The present application connects the independent potentiometer assembly and the light source heat dissipation assembly on the back of the front cover, and compared with the integrated knob assembly structure, the knob provided by the present application does not need to be provided with springs, steel balls and other parts, and the scheme of the present application has simple structure. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The assembly cross-sectional view of the front cover and the potentiometer assembly of one embodiment of the present application; Figure 2 The layout enlarged view of Figure 1 Figure 3 ​Assembling view of front cover and potentiometer assembly of one embodiment of the present application; Figure 4 Sectional view of assembling of front cover and potentiometer assembly of one embodiment of the present application; Figure 5 Layout enlarged view of Figure 4 ; Figure 6 Assembling view of front cover and potentiometer assembly of one embodiment of the present application; Figure 7 Structure schematic view of second bearing in the present application; Figure 8 Structure schematic view of knob assembling structure of one embodiment in the present application; Figure 9 Structure schematic view of main shell of the present application; Figure 10 Assembling schematic view of upper shell and lower shell in the present application; Figure 11 Assembling schematic view of lower shell in the present application; Figure 12 Local enlarged view of Figure 11 ; Figure 13 Structure schematic view of upper shell of the present application; Figure 14 Local enlarged view of Figure 13 .

[0032] Wherein, 1, front cover; 11, first mounting hole; 12, second mounting hole; 2, knob; 21, mounting hole; 3, first bearing; 01, potentiometer assembly; 011, potentiometer shaft; 02, light source heat dissipation assembly; 021, light guide joint; 4, lower shell; 41, bottom plate; 42, rear side plate; 43, front side plate; 44, bent plate; 45, bent support plate; 46, limiting bayonet; 5, upper shell; 51, top plate; 52, side plate; 53, lower baffle; 54, rear baffle; 6, alignment limiting structure; 61, connecting plate; 62, transition plate; 63, limiting plate; 7, reinforcing rib; P, limiting area; 8, second bearing; 91, first gear, 92, second gear. DETAILED DESCRIPTION

[0033] The present application is further described below in conjunction with the drawings.

[0034] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0035] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0036] The purpose of the present application is to provide a cold light source knob assembly structure with simple structure, low structure cost and simple assembly.

[0037] Further, another purpose of the present application is to provide a cold light source shell structure with simple structure, which reduces the assembly time of the cold light source shell and improves the assembly efficiency. Specifically, the assembly of the main shell includes the assembly of the functional module and the assembly of the shell related components. When the functional module is assembled, the functional module is installed in the shell with opening by screw, and the steps of each manufacturer in this process are basically the same. The main reason affecting the assembly efficiency of the main shell is the assembly of the shell related components. The present application improves the shell assembly efficiency through the design of the knob assembly structure and the shell structure. Specifically, the assembly of the cold light source shell reduces the assembly time of the shell through the simple design of the knob assembly structure, and reduces the assembly time of the shell through the design of the shell structure.

[0038] It should be noted that the endoscope cold light source referred to in the present application can be a cold light source device or an all-in-one machine (a device integrated with cold light source function), such as a device integrated with camera system and cold light source.

[0039] The endoscope cold light source knob assembly structure comprises a front cover 1 and a knob 2, the back surface of the front cover 1 is connected with a potentiometer assembly 01 and a light source heat dissipation assembly 02, and the potentiometer assembly 01 and the light source heat dissipation assembly 02 are independent; the knob 2 is located on the front surface of the front cover 1, and the knob 2 and the potentiometer shaft 011 of the potentiometer assembly 01 are directly connected or connected through a transmission member.

[0040] The potentiometer assembly and the light source heat dissipation assembly are connected on the back surface of the front cover, compared with the integrated knob assembly structure, the knob provided by the application does not need to be provided with springs, steel balls and other parts, and the scheme of the application has simple structure and convenient assembly. Embodiment 1

[0041] As shown in Figures 1 to 3 , for the endoscope cold light source, the application provides a cold light source knob assembly structure, which comprises a front cover 1 and a knob 2.

[0042] As shown in Figure 3 , the front cover 1 is provided with a first mounting hole 11 and a second mounting hole 12, the first mounting hole 11 is used for mounting the potentiometer assembly 01, and the second mounting hole 12 is used for mounting the light source heat dissipation assembly 02. In order to adapt to the potentiometer assembly 01 and the light source heat dissipation assembly 02, the first mounting hole 11 and the second mounting hole 12 designed by the application are both circular. Further, the first mounting hole 11 and the second mounting hole 12 adopt the design form of stepped holes.

[0043] The light source heat dissipation assembly 02 is an existing device, when installed, only the light guide beam connector 021 of the light source heat dissipation assembly 02 needs to be inserted into the second mounting hole 12 and fixed by using a limiting structure.

[0044] The potentiometer assembly 01 comprises a potentiometer, the potentiometer is an existing component, the adjustment of the resistance value of the potentiometer realizes the adjustment of the brightness of the light source, and the potentiometer is provided with a potentiometer shaft 011. The potentiometer assembly 01 further comprises a connecting column, as shown in Figure 2 , one end of the connecting column is fixedly connected with the potentiometer, the other end is in contact with the front cover, and the potentiometer is fixed by a screw penetrating through the connecting column. That is, the potentiometer assembly 01 is fixed on the back surface of the front cover at the corresponding position. When the potentiometer assembly 01 is installed, the potentiometer shaft 011 of the potentiometer assembly 01 is inserted into the first mounting hole 11. Then, the first bearing 3 is installed at the first mounting hole 11 from the front surface of the front cover 1, and the knob 2 is assembled with the first bearing 3.

[0045] As shown in Figure 2As shown, the knob 2 has a mounting portion provided with a mounting hole 21, the potentiometer shaft 011 is inserted into the mounting hole 21 of the mounting portion, and the outer wall of the potentiometer shaft 011 is glued to the inner portion of the mounting portion. The outer wall of the mounting portion is in a stepped shape (specifically, a two-step shape), one end of the first bearing 3 is in contact with the front cover, and the other end is in contact with the mounting portion, the outer ring of the first bearing 3 is connected to the front cover, and the inner ring is connected to the mounting portion. This design not only ensures the fixing effect of the knob, but also ensures the smooth rotation of the knob.

[0046] As shown in the figure, Figure 2 At least a part of the potentiometer shaft 011 protrudes out of the first mounting hole 11, which facilitates the connection of the knob and the potentiometer shaft 011. Specifically, when assembling, glue is applied to the inner ring surface of the mounting hole 21 of the knob, and the knob is inserted onto the potentiometer shaft 011. In use, rotating the knob 2 drives the potentiometer shaft 011 to work, achieving the adjustment of the intensity of the light source. Embodiment 2

[0047] As shown in the figure, Figures 4 to 8 For the cold light source of an endoscope, the present application provides a cold light source knob assembly structure, which comprises a front cover 1 and a knob 2, and is different from embodiment 1 in that in the present embodiment, the knob 2 is arranged at the light guide beam connector 021 of the light source heat dissipation assembly 02, and the knob 2 is connected to the potentiometer shaft 011 of the potentiometer 01 through a transmission member.

[0048] As shown in the figure, Figure 4 and Figure 5 The front cover 1 is provided with only one mounting hole, i.e., a second mounting hole 12, the light source heat dissipation assembly 02 is mounted on the back of the front cover 1, the light guide beam connector 021 of the light source heat dissipation assembly 02 is located at the second mounting hole 12, the knob 2 is coaxially connected to the outer end of the light guide beam connector 021, and is connected through a transmission member and the potentiometer shaft 011. In use, rotating the knob 2 drives the potentiometer shaft 011 to rotate through the transmission member, i.e., the brightness of the light source is adjusted.

[0049] The structure of the knob 2 in the present embodiment is different from that of the knob in embodiment 1, the knob structure in embodiment 1 is not a hollow knob, and the knob in embodiment 1 is provided with a mounting portion and a mounting hole 21 at the center thereof, while the knob 2 in the present embodiment is a hollow structure knob, and the hollow knob is coaxially sleeved on the outer periphery of the light guide beam connector 021.

[0050] In a specific embodiment, the transmission member comprises a first gear 91 and a second gear 92 engaged with each other, the first gear 91 is fixed on the outer periphery of the potentiometer shaft 011, and the fixed connection can be welding or glue connection. The second gear 92 is rotatably arranged on the outer periphery of the light guide beam connector 021 through a second bearing 8; the second gear 92 is connected to the end of the knob 2.

[0051] In use, the knob 2 is rotated to drive the second gear 92 to rotate, the second gear 92 drives the first gear 91 to rotate, and the first gear 91 in turn drives the potentiometer shaft 011 to rotate.

[0052] The first gear 91 in the embodiment is a conventional gear, and the second gear 92 in the embodiment is a variable structure gear. Specifically, as shown in the figure, Figure 7 The second gear 92 includes a gear body 921 and a connecting sleeve 922. The connecting sleeve 922 is annular, is integrally formed on one side of the gear body 921, and is coaxially arranged with the gear body 921. The connecting sleeve is a plurality of concentric arc-shaped plates, gaps are provided between adjacent arc-shaped plates, and the arc-shaped plates have elastic deformation capability, so that interference fit is generated when the knob is inserted, and the knob is facilitated to be installed. The assembly process of the second gear 92 is that the second gear 92 is sleeved on the outer periphery of the light guide connector 021, and then the knob 2 is connected with the second gear 92.

[0053] The knob in the embodiment is hollow, as shown in the figure, Figure 8 When assembled, the knob is inserted into the connecting sleeve 922, and in order to ensure that the two are tightly connected, glue can be further arranged between the two.

[0054] As shown in the figures, Figure 4 and Figure 5 The outer end surface of the first gear 91 is limited by the front cover 1, and in order to ensure that the first gear 91 can smoothly rotate during the limiting process, the first bearing 3 is arranged between the first gear 91 and the front cover 1.

[0055] The assembly process of the embodiment is as follows: first, the inner ring of the first bearing 3 is clamped into the protruding part of the front cover 1 in a tight fit. Then, the first gear 91 is assembled with the first bearing 3, and the inner side of the first gear 91 is tightly fitted with the outer ring of the first bearing 3. Then, the potentiometer assembly 01 is fixed on the front cover 1 by screws through the hole positions, wherein the front end of the potentiometer shaft 011 adopts a common D-shaped structure and is clamped into the corresponding position of the first gear 91.

[0056] The inner side of the second bearing 8 is fixed on the outer ring of the light guide connector 021 of the light source heat dissipation assembly 02, the second gear 92 is fixed on the outer side of the second bearing 8, and the first gear 91 is engaged with the second gear 92. The inner side of the knob 2 has a protrusion corresponding to the connecting sleeve 922 of the second gear 92, and the two are glued and assembled.

[0057] The knob 2 is rotated to drive the second gear 92 to rotate, the second gear 92 is engaged with the first gear 91 to drive the first gear 91 to rotate, and the first gear 91 drives the potentiometer shaft 011 to rotate, so that the intensity of the light source can be freely adjusted. The light guide connector 021 is inserted from the middle of the knob. This scheme combines the knob 2 and the light source interface, saves the front cover space, and can print more patterns or install more keys. Embodiment 3

[0058] As Figure 9 shown, the embodiment provides a main shell, which comprises the knob assembly structure of embodiment 1 or embodiment 2, further comprises a U-shaped lower shell 4 and a U-shaped upper shell 5, the lower shell 4 and the upper shell 5 are slidingly connected, and the front cover 1 is connected to the outer side of the lower shell 4.

[0059] In order to reduce the assembly time of the cold light source shell and improve the assembly efficiency, the structure of the knob assembly structure is as simple as possible. A simple structure can save assembly time on the one hand, and can ensure the stability of the use performance on the other hand (relatively speaking, the simpler the structure, the higher the stability). In order to achieve this purpose, the main shell of the present application preferentially selects the knob assembly structure of embodiment 1.

[0060] In the present application, the U-shaped lower shell 4 and the U-shaped upper shell 5 are assembled to form a square box structure, and the front cover 1 is connected to the outer side of the lower shell by screws.

[0061] The lower shell 4 and the upper shell 5 of the present application are designed in a U-shaped structure, the shell structure is simple, and the two are connected by sliding. The sliding connection can realize the rapid assembly of the lower shell 4 and the upper shell 5, reduce the assembly time of the shell, and improve the production efficiency.

[0062] Specifically, as Figure 13 and Figure 14 shown, the U-shaped upper shell 5 comprises a top plate 51 and side plates 52 connected to both sides of the top plate 51, the two side plates 52 in the upper shell 5 are parallel, and the top plate 51 is perpendicular to the two side plates 52. Further, in order to facilitate manufacturing, the upper shell 5 is made in one piece, and can be made by one-piece bending.

[0063] As Figure 10 shown, the U-shaped lower shell 4 comprises a bottom plate 41, a rear side plate 42 connected to one end of the bottom plate 41, and a front side plate 43 connected to the other end of the bottom plate 41, the rear side plate 42 and the front side plate 43 of the lower shell 4 are parallel, and the bottom plate 41 is perpendicular to the front side plate 43 and the rear side plate 42.

[0064] Further, the top of the rear side plate 42 is provided with a bending support plate 45, the bending support plate 45 is perpendicular to the rear side plate 42, the top of the front side plate 43 is provided with a limiting bayonet 46, and the bending support plate 45 and the limiting bayonet 46 are in the same plane. The lower shell 4 is made in one piece, and can be made by one-piece bending. Specifically, the bottom plate 41, the front side plate 43, the rear side plate 42 and the bending support plate 45 are bent in one piece, and the limiting bayonet 46 is made by stamping.

[0065] Preferably, the upper shell 5 and the lower shell 4 are made of metal material, such as stainless steel, copper alloy, etc. The shell made of metal material can play the role of electromagnetic shielding, preventing the influence of magnetic field on the internal functional components and electronic components.

[0066] Since the shapes of the upper shell and the lower shell are both U-shaped structures, the end faces of the upper shell are flush, and the end faces of the lower shell are flush. That is, the left and right sides of the rear side plate 42, the bottom plate 41 and the front side plate 43 are respectively in the same plane, the front end faces of the top plate 51 and the side plate 52 are in the same plane, and the rear end faces of the top plate 51 and the side plate 52 are in the same plane. When the lower shell 4 and the upper shell 5 slide, the side plate 52 first adheres to the left and right end faces of the rear side plate 42, then adheres to the left and right end faces of the bottom plate 41, and finally adheres to the left and right end faces of the front side plate 43.

[0067] In order to improve the assembly efficiency of the shell, the alignment limiting structure 6 is also designed in the present application. The shape of the alignment limiting structure 6 is shown in Figure 12 and Figure 13 , which includes a connecting plate 61, a transition plate 62 and a limiting plate 63, and the connecting plate 61, the transition plate 62 and the limiting plate 63 are made by one-piece forming. The connecting plate 61 is pasted on the bottom surface of the top plate 51 by glue or welded on the bottom surface of the top plate 51, and the limiting plate 63 is parallel to the top plate 51.

[0068] The top end of the rear side plate 42 is connected with a bending plate 44, and the bending plate 44 is perpendicular to the rear side plate 42. Similarly, the bending plate 44 is also made by one-piece bending forming. As shown in Figure 10 , the bending plate 44 is located on both sides of the bending support plate 45, and the horizontal height of the bending plate 44 is higher than that of the bending support plate 45. The limiting area P is formed between the bending plate 44 on both sides and the bending support plate 45. The limiting area P can accommodate the alignment limiting structure, providing a spatial position for the alignment of the upper shell and the lower shell.

[0069] In the present application, as shown in Figure 13 and Figure 14 , the alignment limiting structure 6 is connected to the middle part of the top plate 51, and the bending support plate 45 is located in the middle part of the rear side plate 42; the width of the alignment limiting structure 6 and the width of the bending support plate 45 are matched, and the midlines in the width direction of the two coincide. In the present application, the width of the alignment limiting structure 6 is 100 mm, and the width of the bending support plate 45 is 105 mm. This design can facilitate the alignment of the alignment limiting structure 6 and the bending support plate, and after alignment, the upper shell will not have a large amount of shaking relative to the lower shell.

[0070] It is worth mentioning that at least a part of the limiting plate 63 is located outside the upper shell 5, and the limiting plate 63 is in contact with the bent supporting plate 45 at the initial sliding position, and the limiting plate 63 is inserted into the limiting notch 46 at the terminal sliding position. The present application has the following two advantages: first, the position of the limiting plate can be directly observed during alignment, which facilitates the positioning and alignment of the upper shell and the lower shell during assembly; second, the upper shell does not interfere with the lower shell during alignment, further improving the efficiency of the positioning and alignment of the upper shell and the lower shell.

[0071] Therefore, when the upper shell 5 and the lower shell 4 are assembled, only the limiting plate 63 needs to be moved into the limiting area P to realize the alignment of the upper shell and the lower shell, and then the assembly of the two is completed by sliding the upper shell 5, and finally the assembly is completed by screwing.

[0072] In order to prevent the upper shell 5 from moving excessively, the present application further provides a rear baffle 54, as shown in Figure 13 The rear end surface of the top plate 51 and the side plate 52 is connected with the rear baffle 54, and the rear baffle 54 is perpendicular to the top plate 51 and the side plate 52. When in the terminal sliding position, the rear baffle 54 is in contact with the rear end surface of the rear side plate 42, which can effectively limit the continuous sliding of the upper shell.

[0073] In the present application, the bottom end surface of the side plate 52 is connected with a lower baffle 53, and the lower baffle 53 is perpendicular to the side plate 52. By providing the lower baffle, the positional deviation between the upper shell and the lower shell is further limited. When in the terminal sliding position, the limiting plate 63 is inserted into the limiting notch 46, which can limit the position between the upper shell and the lower shell and prevent the two from shaking. The lower baffle 53 engages with the bottom plate 41 to further limit the position between the upper shell and the lower shell and prevent the two from shaking.

[0074] Further, the lower baffle 53 is provided with a through hole, and the bottom plate 41 is provided with a screw hole matched with the through hole; in the terminal sliding position, a screw is connected into the screw hole through the through hole. By the engagement of the lower baffle 53 and the bottom plate, the insertion of the limiting plate 63 into the limiting notch 46, and the contact of the rear baffle 54 with the rear end surface of the rear side plate 42, the upward and forward movement between the upper shell and the lower shell is limited, and finally the upper shell and the lower shell are fixed by the screw, realizing the rearward movement of the upper shell and the lower shell, and ensuring the stability of the assembled upper shell and lower shell.

[0075] In the present application, after the upper shell and the lower shell are assembled, only 6-8 screws (2-3 screws are provided on each side of the lower baffle) are needed to fix the upper shell and the lower shell. By connecting the screw at the lower baffle, the overall appearance of the shell can also be ensured to be simple.

[0076] As shown in Figure 9 and Figure 10As shown, the reinforcing rib 7 of the present application is arranged on the top of the lower shell 4, that is, one end of the reinforcing rib 7 is connected to the top end of the rear side plate 42, and the other end is connected to the top end of the front side plate 43. The top ends of the rear side plate 42 and the front side plate 43 are of the same height, so that the reinforcing rib 7 is parallel to the bottom plate 41. In the present application, the reinforcing rib 7 is arranged along the length direction of the bottom plate 41, that is, the arrangement direction of the reinforcing rib 7 is the same as the sliding direction of the upper shell 5.

[0077] Further, in the present application, the reinforcing rib is connected to the lower shell 4 by screws, and specifically, one end of the reinforcing rib 7 is connected to the bent plate 44 on the rear side plate 42 by a screw, and the other end is connected to the bent plate 44 on the front side plate 43 by a screw.

[0078] In the present application, two reinforcing ribs 7 are arranged, and the two reinforcing ribs are symmetrically arranged on both sides of the bent support plate 45. On the one hand, the reinforcing ribs do not hinder the movement of the alignment limiting structure, and on the other hand, the reinforcing ribs can ensure the supporting effect of the top plate 51.

[0079] It is worth noting that the present application has the following three advantages by arranging the reinforcing rib 7 on the top of the lower shell: first, the reinforcing rib 7 is arranged on the top of the lower shell, so it does not interfere with the functional components in the lower shell, and does not affect the installation of the functional components. Second, it plays a role in structural reinforcement, ensuring the structural strength of the lower shell, preventing the opening end of the lower shell from being skewed, and affecting the installation of the upper shell. Third, it plays a role in supporting and guiding. When the upper shell moves from the initial sliding position to the final sliding position, the reinforcing rib 7 can support the upper shell, prevent the front end of the top plate 51 of the upper shell 5 from tilting downward, and further ensure that the limiting plate 63 of the alignment limiting structure 6 can be accurately inserted into the limiting card hole 46. If the reinforcing rib is not arranged on the top of the lower shell, due to the weight of the metal shell and the lack of structural reinforcement in the upper shell, the front end of the top plate 51 of the upper shell will tilt downward under the action of gravity during assembly, and the limiting plate 63 cannot be accurately inserted into the limiting card hole 46, which requires manual adjustment, thereby affecting the assembly efficiency. Example 4

[0080] Based on the host shell of Example 3, the present embodiment provides a shell assembly method, which involves a host shell preferably adopting the rotary knob assembly structure of Example 1.

[0081] The assembly method specifically includes the following steps: Step 1: Assembly of functional modules. Install the functional modules on the bottom plate of the lower shell 4, and install the power interface, grounding column, network socket, etc. on the rear side plate 42 of the lower shell 4.

[0082] Step 2: Fix the potentiometer assembly 01 on the front cover 1, with the end of the potentiometer shaft 011 protruding from the first mounting hole 11, set the first bearing 3 at the first mounting hole 11, align the knob 2 with the first mounting hole 11, and the first bearing 3 fits together, and the knob and the potentiometer shaft 011 are glued.

[0083] Step 3: Assembly of the front cover. The front cover is installed on the front side plate 43 of the lower shell 4 with screws.

[0084] Step 4: Place the reinforcing rib 7 in the lower shell 4, align the screw holes on the reinforcing rib 7 with the through holes of the bent plate 44, screw the screws from top to bottom through the through holes of the bent plate 44 into the screw holes of the reinforcing rib, and lock the reinforcing rib 7.

[0085] Step 5: Adjust the position of the upper shell 5 so that the opening of the upper shell 5 is opposite to the opening of the lower shell 4. This step is a preparation before assembly, if the opening of the upper shell and the opening of the lower shell are opposite, this step is not needed.

[0086] Step 6: Adjust the angle of the upper shell 5 so that the top plate 51 of the upper shell 5 is parallel to the bottom plate 41 of the lower shell 4. This step can be quickly realized by a workbench with a flat surface, specifically, place the lower shell 4 and the upper shell 5 on the workbench, so that the top plate 51 of the upper shell 5 is parallel to the bottom plate 41 of the lower shell 4.

[0087] Step 7: Control the movement of the upper shell 5 so that the limiting plate 63 is aligned with the bent support plate 45. This step can also be realized by moving the lower shell 4, since part of the limiting plate 63 is exposed outside the upper shell, it is convenient to observe whether the limiting plate 63 and the bent support plate 45 are aligned.

[0088] Step 8: Control the relative movement of the upper shell 5 and the lower shell 4, insert the limiting plate 63 into the limiting notch 46. This step is preferably realized by moving the upper shell 5, during assembly, only need to push the upper shell 5 to move, when the upper shell 5 cannot move, it means that the limiting plate 63 has been inserted into the limiting notch 46, at this time the preliminary assembly is completed. Then connect the lower baffle 53 to the bottom plate 41 through the screw, that is, the assembly of the upper shell and the lower shell is completed.

[0089] The host shell structure and the assembling method of the present application can complete the assembling of the host shell (including the front cover) in less than 15 minutes. Specifically, it takes about 2 minutes to fix the potentiometer assembly 01 on the front cover by 4 screws. It takes about 2 minutes to place the first bearing 3 at the first mounting hole 11, smear glue on the mounting part of the knob, and insert it on the potentiometer shaft 011. It takes about 2 minutes to assemble the front cover 1 to the front side plate 43 of the lower shell 4 by screws, about 2 minutes to mount the two reinforcing ribs, about 1 minute to align the upper shell and the lower shell and complete the preliminary assembly, and about 2-3 minutes to lock the upper shell and the lower shell by screws. Compared with the assembling time of other forms of host shell (including the front cover or the knob with brightness adjustment), which is about 60 minutes, the efficiency is improved by 5-6 times.

[0090] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An endoscope cold light source knob assembly structure, characterized in that, Includes a front cover (1) and a knob (2). The back of the front cover (1) is connected to a potentiometer assembly (01) and a light source heat dissipation assembly (02), and the potentiometer assembly (01) and the light source heat dissipation assembly (02) are independent of each other. The knob (2) is located on the front of the front cover (1). The front cover (1) is provided with a first mounting hole (11) and a second mounting hole (12). The potentiometer shaft (011) of the potentiometer assembly (01) is located at the first mounting hole (11), and the beam guide connector (021) of the light source heat dissipation assembly (02) is located at the second mounting hole (12). The knob (2) and the potentiometer shaft (011) are glued together.

2. The endoscope cold light source knob assembly structure according to claim 1, characterized in that, The knob (2) has a mounting part, the potentiometer shaft (011) is inserted into the mounting hole (21) of the mounting part, and the outer wall of the potentiometer shaft (011) and the inner wall of the mounting part are glued together.

3. The endoscope cold light source knob assembly structure according to claim 2, characterized in that, The first bearing (3) is sleeved on the mounting part of the knob (2), and the outer wall of the first bearing (3) fits against the inner wall of the first mounting hole (11).

4. The endoscope cold light source knob assembly structure according to claim 1, characterized in that, At least a portion of the potentiometer shaft (011) extends out of the first mounting hole (11).

5. A main unit housing, comprising the knob assembly structure according to any one of claims 1-4, characterized in that, It also includes a U-shaped lower housing (4) and a U-shaped upper housing (5), wherein the lower housing (4) and the upper housing (5) are slidably connected. The front cover (1) is connected to the outside of the lower housing (4).

6. The host housing according to claim 5, characterized in that, The lower housing (4) includes a bottom plate (41), a rear side plate (42) connected to one end of the bottom plate (41), and a front side plate (43) connected to the other end of the bottom plate (41). The rear side plate (42) is provided with a bending support plate (45) at the top, and the front side plate (43) is provided with a limiting slot (46) at the top. The bending support plate (45) and the limiting slot (46) are in the same plane. The front cover (1) is connected to the outside of the front side plate (43). The upper housing (5) includes a top plate (51) and side plates (52) connected to both sides of the top plate (51). The bottom surface of the top plate (51) is connected to an alignment limiting structure (6). At the initial sliding position, the alignment limiting structure (6) contacts the bending support plate (45), and at the end sliding position, the alignment limiting structure (6) is inserted into the limiting slot (46).

7. The host housing according to claim 6, characterized in that, The alignment limiting structure (6) includes a connecting plate (61), a transition plate (62), and a limiting plate (63); the connecting plate (61) is connected to the bottom surface of the top plate (51), and the limiting plate (63) is connected to the connecting plate (61) through the transition plate (62), and the limiting plate (63) and the top plate (51) are parallel; At least a portion of the limiting plate (63) is located outside the upper housing (5). In the initial sliding position, the limiting plate (63) contacts the bending support plate (45). In the end sliding position, the limiting plate (63) is inserted into the limiting slot (46).

8. The host housing according to claim 6, characterized in that, The top of the rear side plate (42) is connected to a bent plate (44), and the bent plate (44) is perpendicular to the rear side plate (42); The bending plate (44) is located on both sides of the bending support plate (45), and the horizontal height of the bending plate (44) is higher than the horizontal height of the bending support plate (45). A limiting area (P) is formed between the bending plate (44) and the bending support plate (45) on both sides. When sliding in the initial position, the alignment limiting structure (6) is located in the limiting area (P).

9. The host housing according to claim 6, characterized in that, The bottom end face of the side plate (52) is connected to a lower baffle (53), which is perpendicular to the side plate (52); the lower baffle (53) is provided with a through hole, and the bottom plate (41) is provided with a screw hole that matches the through hole; When in the sliding end position, the screw passes through the through hole and connects to the screw hole.

10. The host housing according to claim 5, characterized in that, It also includes reinforcing ribs (7); The lower housing (4) includes a bottom plate (41), a rear side plate (42) connected to one end of the bottom plate (41), and a front side plate (43) connected to the other end of the bottom plate (41). One end of the reinforcing rib (7) is connected to the top end of the rear side plate (42), and the other end is connected to the top end of the front side plate (43); The reinforcing rib (7) is arranged along the length direction of the base plate (41).

Images