A waterproof microcirculation imaging device

Abstract

The present application relates to the technical field of medical equipment, and particularly relates to a waterproof microcirculation imaging device. The device comprises a cylindrical shell, an imaging receiving assembly, a rear end cover assembly and a circuit board assembly. The circuit board assembly is installed in the cylindrical shell through a support frame, one side of the support frame is connected with one side of the imaging receiving assembly, the other side of the support frame is connected with the rear end cover assembly, the outer ring surface of one side of the imaging receiving assembly is sleeved with one end of the cylindrical shell, a first groove is arranged on the outer ring surface, a sealing rubber ring is installed in the first groove and used for abutting against the inner surface of the cylindrical shell, and the rear end cover assembly is used for sealing the other end opening of the cylindrical shell. The waterproof microcirculation imaging device provided by the present application achieves good waterproof sealing effect between the cylindrical shell and the rear end cover assembly, between the cylindrical shell and the imaging receiving assembly, and in the focusing module and the lens barrel module of the imaging receiving assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a waterproof microcirculation imaging device. BACKGROUND

[0002] Microcirculation is the blood circulation in the capillary between the microartery and the microvein, is the most basic structure and function unit in the human circulatory system, as the way of material exchange between the human blood and each tissue and cell, it is responsible for providing oxygen, nutrients, energy transfer, carbon dioxide and metabolic waste for each organ and each tissue cell, so the clinical measurement of human microcirculation has an important guiding and auxiliary role for judging whether each tissue of the human body is healthy and for disease treatment.

[0003] The microcirculation imaging device is a new type of photoelectric instrument, mainly used for human microcirculation examination, since it is non-invasive and has no side effects, it is widely used for early diagnosis, disease prediction, treatment effect judgment and prognosis estimation of microcirculation changes of various diseases (such as cardiovascular and cerebrovascular diseases, hypertension, stroke, diabetes and rheumatoid arthritis, especially the condition change prevention of critical patients), and provides a basis for clinical diagnosis and treatment.

[0004] The microcirculation imaging device generally comprises a device main body, a probe and a manual focusing assembly. However, in the prior art, the microcirculation imaging device generally has the problems of complex installation structure and poor waterproof performance. SUMMARY

[0005] The present application aims to provide a microcirculation imaging device which is simple to install, compact in structure and good in waterproof effect, so as to at least solve one of the problems in the prior art. In order to achieve the purpose of the present application, the following technical solutions are adopted:

[0006] A waterproof microcirculation imaging device, comprising a cylindrical shell, an imaging receiving assembly, a rear end cover assembly and a circuit board assembly, the circuit board assembly is installed in the cylindrical shell through a support frame, one side of the support frame is connected with one side of the imaging receiving assembly, the other side of the support frame is connected with the rear end cover assembly, the outer ring surface of one side of the imaging receiving assembly is sleeved with one end of the cylindrical shell, and a first groove is arranged on the outer ring surface, a sealing rubber ring is installed in the first groove for abutting against the inner surface of the cylindrical shell, and the rear end cover assembly is used for sealing the other end opening of the cylindrical shell.

[0007] Further improvement is that the imaging receiving assembly comprises an adapter seat, a focusing module and a lens barrel module, the outer ring surface is located on the adapter seat, one side of the adapter seat is connected with one side of the support frame, and the focusing module and the lens barrel module are respectively connected with the other side of the adapter seat.

[0008] A further improvement is that the focusing module includes a first sleeve extending outward from the other side of the adapter, a focusing sleeve is installed on the outer surface of the first sleeve through two left and right bearings, a straight slide groove extending along the length direction of the first sleeve is provided on the wall of the first sleeve, an inclined slide groove is provided on the wall of the focusing sleeve, an inner focusing barrel is movably installed in the inner cavity of the first sleeve and a focusing lens is installed in the inner cavity of the inner focusing barrel, a sliding part is installed on the outer side of the inner focusing barrel, the sliding part passes through the straight slide groove and is inserted into the inclined slide groove, when the focusing sleeve rotates, the sliding part is driven to move in the straight slide groove through the inclined slide groove, thereby driving the inner focusing barrel to move back and forth.

[0009] A further improvement is that a circle of raised first ring is formed on the periphery of the first sleeve on the other side of the adapter, and a circle of second grooves is provided on the side of the focusing sleeve, and the first ring is inserted into the second grooves.

[0010] A further improvement is that the lens barrel module includes an inner lens barrel and an outer lens barrel, the inner lens barrel is connected to the side of the first sleeve and the inner cavity of the inner lens barrel is connected to the inner cavity of the first sleeve, the inner cavity of the first sleeve is connected to the inside of the cylindrical shell and is coaxially arranged with the imaging sensor module in the cylindrical shell, and a plurality of lenses are arranged in sequence in the inner cavity of the inner lens barrel; the outer lens barrel is sleeved on the outside of the inner lens barrel, one end of the outer lens barrel is connected to the side of the first sleeve, and the other end of the outer lens barrel is a closed surface.

[0011] A further improvement is that the outer lens barrel includes a first lens barrel and a second lens barrel, one end of the first lens barrel is connected to the side of the first sleeve, the other end of the first lens barrel is connected to one end of the second lens barrel by a thread, and the other end of the second lens barrel is inlaid with a glass piece as a closed surface.

[0012] A further improvement is that the edge of one end of the outer lens barrel extends outward to form a mounting plate surface, and a screw hole is provided on the mounting plate surface for fitting a bolt to fix the connection with the side of the first sleeve, and a waterproof rubber ring is sleeved in the bolt, and a second ring is provided on the side of the focusing sleeve close to the mounting plate surface, and a third groove is provided on the inner side of the mounting plate surface, and the second ring is inserted into the third groove.

[0013] A further improvement is that the left and right side surfaces of the focusing sleeve are respectively formed with mounting grooves for mounting bearings, the inner wall surface of the bearing is tightly attached to the outer surface of the first sleeve, and the outer wall surface of the bearing is tightly attached to the inner wall of the mounting groove, wherein the inner wall surface of the bearing close to the outer barrel side partially protrudes from the side surface of the first sleeve, and a circle of circular bosses is provided on the inner side of the mounting disk surface, and the annular surface of the circular boss is tightly attached to the inner wall surface of the bearing protruding from the side portion of the first sleeve.

[0014] Further improvement lies in that the focusing module further comprises a manual focusing ring, the manual focusing ring is sleeved outside the focusing sleeve, the outer surface of the focusing sleeve is provided with a protruding ring at the left and right ends close to the edges, a ring of sealing grooves is arranged on the ring surface of the protruding ring, a sealing rubber ring is placed in the sealing groove, and the inner surface of the manual focusing ring extrudes the sealing rubber ring.

[0015] Further improvement lies in that the rear end cover assembly comprises an inner cover and an outer cover, the inner cover is embedded into the cylindrical shell from the other end opening of the cylindrical shell and is fixedly connected with one end of the inner support frame of the cylindrical shell, the outer edge of the inner cover is attached to the inner surface of the cylindrical shell, a fourth groove is arranged on the outer edge of the inner cover for mounting a sealing rubber ring, a third protruding ring is arranged on the outer end surface of the inner cover, a fourth protruding ring and a fifth protruding ring are arranged on the inner end surface of the outer cover, the ring surface of the fourth protruding ring is attached to the inner surface of the cylindrical shell, and the fifth protruding ring is fixedly connected with the third protruding ring through threads.

[0016] The beneficial effects of the present application are as follows:

[0017] The waterproof microcirculation imaging device provided by the present application achieves good waterproof sealing effect in the focusing module, the lens barrel module and the imaging receiving assembly between the cylindrical shell and the rear end cover assembly and between the cylindrical shell and the imaging receiving assembly.

[0018] The present application can prevent liquid from entering the cylindrical shell through the gap between the imaging receiving assembly and the cylindrical shell by sleeving the outer ring surface of one side of the imaging receiving assembly with one end of the cylindrical shell and arranging a first groove on the outer ring surface, and installing a sealing rubber ring in the first groove for abutting against the inner surface of the cylindrical shell.

[0019] The present application can prevent liquid from entering the cylindrical shell through the gap between the imaging receiving assembly and the cylindrical shell by sleeving the outer ring surface of one side of the imaging receiving assembly with one end of the cylindrical shell and arranging a first groove on the outer ring surface, and installing a sealing rubber ring in the first groove for abutting against the inner surface of the cylindrical shell.

[0020] The present invention can protect the inner lens barrel by further covering the outer lens barrel with an outer lens barrel, and at the same time has a dustproof and waterproof effect, and can prevent liquid from entering the inner cavity of the inner lens barrel and the interior of the cylindrical shell through the gap of the inner lens barrel. In addition, the present invention designs the outer lens barrel into a segmented structure, that is, it includes a first lens barrel and a second lens barrel. This can avoid the problem of reduced inner cavity processing accuracy during one-piece molding due to excessive length of the lens barrel. By providing the first lens barrel and the second lens barrel, the lengths of the first lens barrel and the second lens barrel are relatively short, and the processing accuracy of the inner cavity is guaranteed. The first lens barrel and the second lens barrel are then connected together by a threaded connection to form the outer lens barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall appearance diagram of a waterproof microcirculation imaging device;

[0022] Figure 2 Explosion of a waterproof microcirculation imaging device Figure 1 ;

[0023] Figure 3 Explosion of a waterproof microcirculation imaging device Figure 2 ;

[0024] Figure 4 This is a schematic diagram after the inner cover is installed;

[0025] Figure 5 This is the exploded view of the focusing module;

[0026] Figure 6 Schematic diagram of the assembled focusing module structure;

[0027] Figure 7 Schematic diagram of the structure of the focusing sleeve;

[0028] Figure 8 Schematic diagram of the coordination structure between the focusing sleeve and the manual focusing ring;

[0029] Figure 9 Explosion of a waterproof microcirculation imaging device Figure 3 ;

[0030] Figure 10 Schematic diagram of the structure of the outer lens barrel;

[0031] Figure 11 Schematic diagram of the support frame structure;

[0032] Figure 12 Schematic diagram of the cylindrical shell structure.

[0033] Description of reference numerals:

[0034] 1, cylindrical shell; 2, circuit board assembly; 3, support frame; 4, outer ring surface; 5, first groove; 6, sealing rubber ring; 7, switch button; 8, adapter seat; 9, first sleeve; 10, bearing; 11, focusing sleeve; 12, straight sliding groove; 13, inclined sliding groove; 14, inner focusing cylinder; 15, sliding piece; 16, imaging sensor module; 17, threaded hole; 18, first circular ring; 19, second groove; 20, outer lens barrel; 21, first lens barrel; 22, second lens barrel; 23, glass sheet; 24, mounting disc surface; 25, bolt; 26, waterproof rubber ring; 27, second circular ring; 28, third groove; 29, mounting groove; 30, circular boss; 31, protective cover; 32, intermediate through hole; 33, disposable sleeve; 34, manual focusing ring; 35, raised circular ring; 36, sealing groove; 37, non-slip pattern; 38, inner cover; 39, outer cover; 40, fourth groove; 41, third circular ring; 42, fourth circular ring; 43, fifth circular ring; 44, wire end; 45, wire body; 46, pluggable connection end; 47, second through hole; 48, connection end; 49, first through hole; 50, large circular surface; 51, small circular surface; 52, square base plate; 53, left side plate; 54, right side plate; 55, limiting sliding groove; 56, limiting guide bar; 57, focusing lens; 58, inner lens barrel; 59, anti-dropping groove; 60, mounting position. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the protection scope of the present application.

[0036] It should be noted that when an element is referred to as being "fixed", "disposed", "secured" or "arranged" to another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. Further, when an element is considered to be "drivingly connected" to another element, the two can achieve power transmission, and the specific implementation can utilize existing technology, which will not be described here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is perpendicular, but due to manufacturing and assembly, there can be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] The “first” and “second” involved in the present invention do not represent specific quantities and orders, but are only used to distinguish names.

[0039] Please refer to the attached Figure 1 -Attached Figure 12 , the embodiment of the present invention provides a waterproof microcirculation imaging device, such as Figure 2 As shown, the microcirculation imaging device includes a cylindrical shell 1, an imaging receiving assembly, a rear end cover assembly and a circuit board assembly 2. The circuit board assembly 2 is installed in the cylindrical shell 1 through a support frame 3, and one side of the support frame 3 is connected to one side of the imaging receiving assembly, and the other side of the support frame 3 is connected to the rear end cover assembly. The outer annular surface 4 on one side of the imaging receiving assembly is sleeved with the opening at one end of the cylindrical shell 1, and a circle of first grooves 5 is provided on the outer annular surface 4. A sealing rubber ring 6 is installed in the first groove 5 for abutting against the inner surface of the cylindrical shell 1. The rear end cover assembly is used to seal the opening at the other end of the cylindrical shell 1. A switch button 7 is provided on the cylindrical shell 1.

[0040] It can be understood that the present invention prevents liquid from entering the interior of the cylindrical shell 1 through the gap between the imaging receiving assembly and the cylindrical shell 1 by fitting the outer ring surface 4 on one side of the imaging receiving assembly with the opening at one end of the cylindrical shell 1 and providing a circle of first grooves 5 on the outer ring surface 4, and installing a sealing rubber ring 6 in the first groove 5 for abutting against the inner surface of the cylindrical shell 1.

[0041] In one embodiment of the present invention, the imaging receiving assembly includes an adapter 8, a focusing module and a lens barrel module, the outer annular surface 4 is located on the adapter 8, one side of the adapter 8 is connected to one side of the support frame 3, and the focusing module and the lens barrel module are respectively connected to the other side of the adapter 8.

[0042] like Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8As shown, the focusing module comprises a first sleeve 9 formed on the other side of the adapter 8, a focusing sleeve 11 is installed on the outer surface of the first sleeve 9 through two bearings 10, a straight sliding groove 12 is arranged on the wall of the first sleeve 9 along the length direction of the first sleeve 9, an inclined sliding groove 13 is arranged on the wall of the focusing sleeve 11, an inner focusing sleeve 14 is movably installed in the inner cavity of the first sleeve 9, and a focusing lens 57 is installed in the inner cavity of the inner focusing sleeve 14, a sliding piece 15 is installed on the outer side of the inner focusing sleeve 14, the sliding piece 15 is inserted into the inclined sliding groove 13 after passing through the straight sliding groove 12, and the sliding piece 15 is moved in the straight sliding groove 12 by the inclined sliding groove 13 when the focusing sleeve 11 rotates, so as to drive the inner focusing sleeve 14 to move forward and backward.

[0043] The number of the straight sliding grooves 12 is two groups, which are distributed on the left and right sides of the first sleeve 9, the number of the inclined sliding grooves 13 is two groups, which are distributed on the left and right sides of the focusing sleeve 11, and the inclined directions of the two groups of inclined sliding grooves 13 are opposite, and the number of the bearings 10 is two groups, which are respectively located at the two end edges of the first sleeve 9.

[0044] It can be understood that, by installing the focusing sleeve 11 on the first sleeve 9 through the bearings 10, the focusing sleeve 11 can rotate relative to the first sleeve 9, and the friction generated when the focusing sleeve 11 rotates is very small under the action of the bearings 10, so that the focusing sleeve 11 is very easy to rotate, and the hand feeling of the focusing operation is greatly improved. And by installing the sliding piece 15 on the outer side of the inner focusing sleeve 14, the sliding piece 15 is inserted into the inclined sliding groove 13 of the focusing sleeve 11 after passing through the straight sliding groove 12 on the first sleeve 9, and the sliding piece 15 is moved in the straight sliding groove 12 by the inclined sliding groove 13 when the focusing sleeve 11 rotates, so as to drive the inner focusing sleeve 14 to move forward and backward, and the focusing lens 57 installed in the inner cavity of the inner focusing sleeve 14 also moves synchronously when the inner focusing sleeve 14 moves forward and backward, so that the focusing can be realized.

[0045] Preferably, the bearing 10 is a waterproof bearing 10.

[0046] As shown in the figure, Figure 6 As shown, one side of the adapter 8 is provided with a mounting position 60 for mounting an imaging sensor module 16, the imaging sensor module 16 is coaxially arranged with the focusing lens 57, and light reaches the imaging sensor module 16 after passing through the focusing lens 57, and one side of the adapter 8 is also provided with a threaded hole 17 for connecting with the support frame 3.

[0047] In an embodiment of the present application, a first protruding ring 18 is formed on the periphery of the first sleeve 9 on the other side of the adapter 8, a second groove 19 is arranged on the side of the focusing sleeve 11, and the first protruding ring 18 is inserted into the second groove 19.

[0048] It can be understood that the first annular ring 18 and the second groove 19 cannot be tightly fitted, otherwise, a larger friction force will be generated between the first annular ring 18 and the second groove 19. When the focusing sleeve 11 rotates, the first annular ring 18 also rotates in the second groove 19, and through the cooperation of the first annular ring 18 and the second groove 19, a multi-layer stepped structure is formed, which is beneficial to the waterproof and dustproof of the focusing module. In addition, a layer of dustproof oil can be coated in the second groove 19 according to actual use needs, so that the dustproof effect can be further improved.

[0049] As shown in Figure 2 , Figure 9 , Figure 10 illustrated, in an embodiment of the present application, the lens barrel module comprises an inner lens barrel 58 and an outer lens barrel 20, the inner lens barrel 58 is connected to the side of the first sleeve 9 and the inner cavity of the inner lens barrel 58 communicates with the inner cavity of the first sleeve 9, the inner cavity of the first sleeve 9 communicates with the inside of the cylindrical shell 1 and is coaxially arranged with the imaging sensor module 16 in the cylindrical shell 1, and a plurality of lenses are arranged and installed in the inner cavity of the inner lens barrel 58 in sequence; the outer lens barrel 20 is sleeved outside the inner lens barrel 58, one end of the outer lens barrel 20 is connected to the side of the first sleeve 9, and the other end of the outer lens barrel 20 is a closed surface.

[0050] The outer lens barrel 20 is made of stainless steel through CNC processing. The outer lens barrel 20 comprises a first lens barrel 21 and a second lens barrel 22, one end of the first lens barrel 21 is connected to the side of the first sleeve 9, the other end of the first lens barrel 21 is connected to one end of the second lens barrel 22 through a thread, and the other end of the second lens barrel 22 is a closed surface through the inlaying of a glass sheet 23. The glass sheet 23 is preferably a sapphire glass sheet 23, which has a relatively high hardness to avoid scratching, and has the advantage of high light transmittance, thereby ensuring the clarity of microcirculation imaging.

[0051] The embodiment can protect the inner lens barrel 58 by continuing to sleeve an outer lens barrel 20 outside the inner lens barrel 58, and has the effects of dustproof and waterproof, which can prevent liquid from entering the inner cavity of the inner lens barrel 58 and the inside of the cylindrical shell 1 from the gap of the inner lens barrel 58. In the embodiment, the outer lens barrel 20 is designed in a segmented structure, i.e., comprising the first lens barrel 21 and the second lens barrel 22, which can avoid the problem of reduced machining precision of the inner cavity due to the excessive length of the lens barrel during one-piece molding processing. The first lens barrel 21 and the second lens barrel 22 are connected together through a thread to form the outer lens barrel 20, so that the lengths of the first lens barrel 21 and the second lens barrel 22 are relatively short, and the machining precision of the inner cavity is guaranteed.

[0052] In one embodiment of the present application, the outer lens barrel 20 extends outwardly at one end edge to form a mounting disc surface 24, and screw holes 17 are provided on the mounting disc surface 24 for fixing the first sleeve 9 to the side surface of the mounting disc surface 24 by means of bolts 25, and waterproof rubber rings 26 are sleeved on the bolts 25, and a second ring 27 is provided on one side of the focusing sleeve 11 close to the mounting disc surface 24, and a third groove 28 is provided on the inner side of the mounting disc surface 24, and the second ring 27 is inserted into the third groove 28. In addition, the third groove 28 can also be coated with a layer of dustproof oil.

[0053] It can be understood that the second ring 27 and the third groove 28 cannot be tightly fitted, otherwise, a large friction force will be generated between the second ring 27 and the third groove 28. When the focusing sleeve 11 rotates, the second ring 27 also rotates in the third groove 28, and through the cooperation of the second ring 27 and the third groove 28, a multi-layer stepped structure is formed, which is beneficial to waterproof and dustproof of the focusing module.

[0054] As shown in Figure 5 , Figure 7 In one embodiment of the present application, mounting grooves 29 are formed on the left and right side surfaces of the focusing sleeve 11 for mounting bearings 10, the inner wall surface of the bearing 10 is tightly attached to the outer surface of the first sleeve 9, and the outer wall surface of the bearing 10 is tightly attached to the inner side wall of the mounting groove 29. As shown in Figure 9 , the inner wall surface of the bearing 10 close to the side of the outer lens barrel 20 protrudes from the side surface of the first sleeve 9, and as shown in Figure 10 , a circular boss 30 is provided on the inner side of the mounting disc surface 24, and the circular ring surface of the circular boss 30 is tightly attached to the inner wall surface of the bearing 10 protruding from the side surface of the first sleeve 9.

[0055] By means of the mounting disc surface 24, the interface between the inner lens barrel 58 and the first sleeve 9 can be covered, and by means of the third groove 28 provided on the inner side of the mounting disc surface 24, the third groove 28 is coated with a layer of dustproof oil, the second ring 27 is provided on one side of the focusing sleeve 11 close to the mounting disc surface 24, and the second ring 27 is inserted into the third groove 28, and by means of the inner wall surface of the bearing 10 close to the side of the outer lens barrel 20 protruding from the side surface of the first sleeve 9, a circular boss 30 is provided on the inner side of the mounting disc surface 24, and the circular ring surface of the circular boss 30 is tightly attached to the inner wall surface of the bearing 10 protruding from the side surface of the first sleeve 9, the dustproof and waterproof effects can be enhanced. At the same time, by means of the waterproof rubber rings 26 sleeved on the bolts 25, liquid can be prevented from entering from the gap between the bolts 25 and the screw holes 17.

[0056] In one embodiment of the present invention, the lens barrel module further includes a protective cover 31 having a central through hole 32. The protective cover 31 passes through the outer lens barrel 20 and covers the side surfaces of the mounting plate 24 and the focusing sleeve 11. Specifically, the protective cover 31 can be fixed by snapping.

[0057] The protective cover 31 covers the side surfaces of the mounting plate 24 and the focusing sleeve 11, preventing too many screw heads from being exposed, making the overall appearance more beautiful, and further enhancing the dustproof and waterproof effects.

[0058] In addition, in the present invention, a disposable sleeve 33 is also sleeved on the outside of the outer barrel 20. The disposable sleeve 33 is made of transparent material and is used to be put on when examining a patient. After use, it needs to be discarded and replaced with a new disposable sleeve 33 before examining the next patient to avoid cross infection.

[0059] like Figure 8 As shown, in one embodiment of the present invention, the focusing module further includes a manual focus ring 34, which is sleeved over the focusing sleeve 11. Raised rings 35 are provided on the left and right ends of the outer surface of the focusing sleeve 11, near the edges. Each raised ring 35 has a sealing groove 36 formed on its annular surface. A sealing rubber ring 6 is placed in the sealing groove 36. The inner surface of the manual focus ring 34 compresses the sealing rubber ring 6, and when the manual focus ring 34 rotates, the focusing sleeve 11 rotates synchronously. Anti-slip grooves 37 are provided on the outer surface of the manual focus ring 34 to prevent slipping during rotation.

[0060] It is understood that after the sealing rubber ring 6 is placed in the sealing groove 36, a portion of it protrudes from the annular surface of the raised ring 35. After the manual focus ring 34 is inserted into the outer surface of the focus sleeve 11, the inner surface of the manual focus ring 34 will squeeze the sealing rubber ring 6. Due to the friction between the sealing rubber ring 6 and the inner surface of the manual focus ring 34, the manual focus ring 34 can drive the focus sleeve 11 to rotate synchronously when it rotates, that is, the sealing rubber ring 6 acts as a transmission. In addition, the provision of the sealing rubber ring 6 can also achieve a waterproof sealing effect, preventing liquid from entering through the gap between the manual focus ring 34 and the annular surface of the raised ring 35 and then entering the first sleeve 9 through the inclined slide groove 13 and the straight slide groove 12.

[0061] In addition, a circle of anti-off grooves 59 can be arranged on the circular surface of the convex circular ring 35, and at least one screw hole 17 is arranged on the manual focusing ring 34. When in use, the manual focusing ring 34 can be disassembled only after the bolt 25 is disassembled, so that the manual focusing ring 34 cannot be disassembled at will.

[0062] As shown in Figure 2 , Figure 3 , Figure 4 In one embodiment of the present application, the rear end cover assembly includes an inner cover 38 and an outer cover 39. The inner cover 38 is inserted into the cylindrical shell 1 from the other end opening of the cylindrical shell 1 and is fixedly connected to one end of the internal support frame 3 of the cylindrical shell 1. Screw holes 17 are arranged on the inner cover 38 and the support frame 3, respectively. The inner cover 38 and the support frame 3 are connected and fixed by the bolt 25 cooperating with the screw holes 17. The outer edge of the inner cover 38 is attached to the inner surface of the cylindrical shell 1, and a circle of fourth grooves 40 is arranged on the outer edge of the inner cover 38 for installing a sealing rubber ring 6. A third circular ring 41 is arranged on the outer end surface of the inner cover 38. The screw holes 17 on the inner cover 38 are located within the range circled by the third circular ring 41, and the number of the screw holes 17 is three. A fourth circular ring 42 and a fifth circular ring 43 are arranged on the inner end surface of the outer cover 39. The circular surface of the fourth circular ring 42 is attached to the inner surface of the cylindrical shell 1. The fifth circular ring 43 is threadedly connected and fixed with the third circular ring 41.

[0063] When the inner cover 38 is installed, the inner cover 38 is inserted into the cylindrical shell 1, the screw holes 17 on the inner cover 38 are aligned with the screw holes 17 on the support frame 3, and then the bolt 25 is used for fixed connection. The outer edge of the inner cover 38 is attached to the inner surface of the cylindrical shell 1, and a circle of fourth grooves 40 is arranged on the outer edge of the inner cover 38 for installing a sealing rubber ring 6, so that the sealing rubber ring 6 is tightly attached to the inner surface of the cylindrical shell 1, preventing water from entering the inside of the cylindrical shell 1 through the gap between the outer edge of the inner cover 38 and the inner surface of the cylindrical shell 1. Further, the circular surface of the fourth circular ring 42 is attached to the inner surface of the cylindrical shell 1, and the fifth circular ring 43 is threadedly connected and fixed with the third circular ring 41, which can further prevent water from entering the inside of the cylindrical shell 1. Even if a small amount of water enters the space between the inner cover 38 and the outer cover 39 through the gap between the circular surface of the fourth circular ring 42 and the inner surface of the cylindrical shell 1, the water cannot continue to enter the inside of the cylindrical shell 1 under the blockage of the sealing rubber ring 6 on the outer edge of the inner cover 38, achieving a very good waterproof effect, and the structure is simple and convenient to install.

[0064] Specifically, the microcirculation imaging device further comprises a pluggable connecting line, which comprises a line head 44, a line body 45 and a pluggable connecting end 46, one end of the line head 44 is provided with the pluggable connecting end 46, the pluggable connecting end 46 is used to be connected with a connecting end 48 inside the cylindrical shell 1 after passing through a second through hole 47 on the inner cover 38, the other end of the line head 44 is provided with the line body 45, the line head 44 is in the shape of a cylinder, and the circular surface of the line head 44 is attached to the inner surface of the first through hole 49 on the outer cover 39 and the inner ring wall of the third ring 41 respectively.

[0065] The circular surface of the line head 44 comprises a large circular surface 50 and a small circular surface 51, the circular diameter of the large circular surface 50 is larger than that of the small circular surface 51, the large circular surface 50 is attached to the inner ring wall of the third ring 41, and the small circular surface 51 is attached to the inner surface of the first through hole 49. A sealing groove 36 is arranged on the large circular surface 50 for installing a sealing rubber ring 6. After the inner cover 38 is installed, the pluggable connecting end 46 is connected with the connecting end 48 inside the cylindrical shell 1 after passing through the second through hole 47, at this time, the large circular surface 50 of the line head 44 is just inserted into the third ring 41 and attached to the inner ring wall of the third ring 41, and since the sealing rubber ring 6 is installed on the large circular surface 50, water can be prevented from entering the inside of the cylindrical shell 1 from the gap between the large circular surface 50 and the inner ring wall of the third ring 41. After the pluggable connecting line is installed, the outer cover 39 can be installed, and after the outer cover 39 is screwed, the small circular surface 51 is attached to the inner surface of the first through hole 49.

[0066] In an embodiment of the present application, the support frame 3 comprises a square bottom plate 52, the left and right side edges of the square bottom plate 52 respectively extend upward to form a left side plate 53 and a right side plate 54, three screw holes 17 are respectively arranged on the top surface of the left side plate 53 and the top surface of the right side plate 54 for installing the circuit board assembly 2, the outer side surface of the left side plate 53 and the outer side surface of the right side plate 54 are respectively provided with a length direction extending limiting sliding groove 55, and one limiting guide strip 56 matched with the limiting sliding groove 55 is respectively attached to the left and right sides of the inner surface of the cylindrical shell 1.

[0067] In an embodiment of the present application, the support frame 3 comprises a square bottom plate 52, the left and right side edges of the square bottom plate 52 respectively extend upward to form a left side plate 53 and a right side plate 54, three screw holes 17 are respectively arranged on the top surface of the left side plate 53 and the top surface of the right side plate 54 for installing the circuit board assembly 2, the outer side surface of the left side plate 53 and the outer side surface of the right side plate 54 are respectively provided with a length direction extending limiting sliding groove 55, and one limiting guide strip 56 matched with the limiting sliding groove 55 is respectively attached to the left and right sides of the inner surface of the cylindrical shell 1.

[0068] Screw holes 17 are arranged on the front and back of the support frame 3, and the screw holes 17 on one side are used for mounting connection with the rear end cover assembly, and the screw holes 17 on the other side are used for mounting connection with the adapter seat 8 in the imaging receiving assembly.

[0069] During installation, first, the circuit board assembly 2 is laid on the top surface of the left side plate 53 and the top surface of the right side plate 54 and fixed by using the bolts 25, then the imaging receiving assembly is installed at one end of the support frame 3 and fixed by using the bolts 25, then the other end of the support frame 3 is inserted into the opening at one end of the cylindrical shell 1 and the limiting sliding groove 55 is aligned with the limiting guide strip 56, then the support frame 3 is pushed further, at this time, the rear end cover assembly is installed at the other end of the cylindrical shell 1 and fixed by using the bolts 25.

[0070] In summary, the waterproof microcirculation imaging device provided by the application achieves good waterproof sealing effect between the cylindrical shell 1 and the rear end cover assembly, between the cylindrical shell 1 and the imaging receiving assembly, and in the focusing module, the lens barrel module in the imaging receiving assembly.

[0071] The technical features of the above embodiments can be combined in any manner, and in order to make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that they are within the scope of the present application.

[0072] The above embodiments only express the specific implementation of the application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection of the present application.

Claims

1. A waterproof microcirculation imaging device, characterized in that: It includes a cylindrical shell, an imaging receiving assembly, a rear end cover assembly and a circuit board assembly. The circuit board assembly is installed in the cylindrical shell through a support frame, and one side of the support frame is connected to one side of the imaging receiving assembly, and the other side of the support frame is connected to the rear end cover assembly. The outer ring surface of one side of the imaging receiving assembly is sleeved with the opening at one end of the cylindrical shell, and a circle of first grooves is provided on the outer ring surface. A sealing rubber ring is installed in the first groove for abutting against the inner surface of the cylindrical shell. The rear end cover assembly is used to seal the opening at the other end of the cylindrical shell. The rear end cover assembly includes an inner cover and an outer cover, the inner cover is embedded in the cylindrical shell from the opening at the other end of the cylindrical shell and is fixedly connected to one end of the internal support frame of the cylindrical shell, the outer edge of the inner cover is in contact with the inner surface of the cylindrical shell and a circle of fourth grooves is provided on the outer edge of the inner cover for installing a sealing rubber ring, a raised third circular ring is provided on the outer end surface of the inner cover, and a raised fourth circular ring and a fifth circular ring are provided on the inner end surface of the outer cover, screw holes are respectively provided on the inner cover and the support frame, and the screw holes on the inner cover are located within the range circled by the third circular ring; When installing the inner cover, embed the inner cover into the cylindrical outer shell, align the screw holes on the inner cover with the screw holes on the support frame, and then use bolts to fix the connection. The sealing rubber ring fits tightly against the inner surface of the cylindrical outer shell to prevent water from entering the interior of the cylindrical outer shell through the gap between the outer edge of the inner cover and the inner surface of the cylindrical outer shell. The annular surface of the fourth ring fits against the inner surface of the cylindrical outer shell, and the fifth ring is fixed to the third ring by threads to further prevent water from entering the interior of the cylindrical outer shell.

2. A waterproof microcirculation imaging device according to claim 1, characterized in that: The imaging receiving assembly includes an adapter, a focusing module and a lens barrel module. The outer annular surface is located on the adapter. One side of the adapter is connected to one side of the support frame. The focusing module and the lens barrel module are respectively connected to the other side of the adapter.

3. A waterproof microcirculation imaging device according to claim 2, characterized in that: The focusing module includes a first sleeve extending outward from the other side of the adapter, a focusing sleeve is installed on the outer surface of the first sleeve through two left and right bearings, a straight slide groove extending along the length direction of the first sleeve is provided on the wall of the first sleeve, an inclined slide groove is provided on the wall of the focusing sleeve, an inner focusing barrel is movably installed in the inner cavity of the first sleeve and a focusing lens is installed in the inner cavity of the inner focusing barrel, a sliding part is installed on the outer side of the inner focusing barrel, the sliding part passes through the straight slide groove and is inserted into the inclined slide groove, when the focusing sleeve rotates, the sliding part is driven to move in the straight slide groove through the inclined slide groove, thereby driving the inner focusing barrel to move back and forth.

4. A waterproof microcirculation imaging device according to claim 3, characterized in that: A circle of raised first circular ring is formed on the periphery of the first sleeve on the other side of the adapter, and a circle of second groove is provided on the side of the focusing sleeve, and the first circular ring is inserted into the second groove.

5. The waterproof microcirculation imaging device according to claim 3, characterized in that: The lens barrel module includes an inner lens barrel and an outer lens barrel. The inner lens barrel is connected to the side of the first sleeve and the inner cavity of the inner lens barrel is connected to the inner cavity of the first sleeve. The inner cavity of the first sleeve is connected to the inside of the cylindrical shell and is coaxially arranged with the imaging sensor module in the cylindrical shell. Several lenses are arranged in sequence in the inner cavity of the inner lens barrel; the outer lens barrel is sleeved on the outside of the inner lens barrel, one end of the outer lens barrel is connected to the side of the first sleeve, and the other end of the outer lens barrel is a closed surface.

6. The waterproof microcirculation imaging device according to claim 5, characterized in that: The outer lens barrel includes a first lens barrel and a second lens barrel. One end of the first lens barrel is connected to the side of the first sleeve, the other end of the first lens barrel is connected to one end of the second lens barrel through a thread, and the other end of the second lens barrel is inlaid with a glass piece as a closed surface.

7. The waterproof microcirculation imaging device according to claim 5, characterized in that: The edge of one end of the outer lens barrel extends outward to form a mounting plate surface, and a screw hole is provided on the mounting plate surface for fitting a bolt to fix the connection with the side surface of the first sleeve, and a waterproof rubber ring is sleeved in the bolt. A second ring is provided on the side of the focusing sleeve close to the mounting plate surface, and a third groove is provided on the inner side of the mounting plate surface, and the second ring is inserted into the third groove.

8. The waterproof microcirculation imaging device according to claim 7, characterized in that: The left and right sides of the focusing sleeve are respectively formed with mounting grooves for mounting bearings, the inner wall surface of the bearing is in close contact with the outer surface of the first sleeve, and the outer wall surface of the bearing is in close contact with the inner wall of the mounting groove, wherein the inner wall surface of the bearing close to the outer barrel side partially protrudes from the side surface of the first sleeve, and a circle of circular bosses is provided on the inner side of the mounting disk surface, and the annular surface of the circular boss is in close contact with the inner wall surface of the bearing protruding from the side portion of the first sleeve.

9. A waterproof microcirculation imaging device according to any one of claims 3 to 8, characterized in that: The focusing module also includes a manual focusing ring, which is sleeved on the outside of the focusing sleeve. Raised circular rings are respectively provided on the left and right ends of the outer surface of the focusing sleeve near the edge. A circle of sealing grooves is provided on the circular surface of the raised circular rings. A sealing rubber ring is placed in the sealing groove. The inner surface of the manual focusing ring squeezes the sealing rubber ring. When the manual focusing ring rotates, the focusing sleeve is driven to rotate synchronously.

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