Reciprocating plate, fixed base plate, rotary reciprocating mechanism and electronic endoscope

Abstract

The invention relates to the field of electronic endoscopes, in particular to a reciprocating plate, a fixed base plate, a rotary reciprocating mechanism and an electronic endoscope. The reciprocating plate comprises a reciprocating plate body (1), a shading opening groove (11), a sliding groove (13) and a driving groove (12) are formed in the reciprocating plate body (1), and a limiting block (121) is arranged in the driving groove (12). The reciprocating plate is simple in structure and high in practicability, the purpose of adjusting the light receiving intensity can be achieved through reciprocating motion of the reciprocating plate body, instability caused by electronic control is avoided, the production efficiency is improved, the production difficulty is lowered, the product consistency is improved, the part machining difficulty is lowered, and the reciprocating plate is stable in structure and suitable for large-range popularization.

Description

Technical Field

[0001] The present invention relates to the field of electronic endoscopes, and particularly to a reciprocating plate, a fixed substrate, a rotary reciprocating mechanism and an electronic endoscope. Background Art

[0002] An electronic endoscope is a medical electronic optical instrument integrating high-precision technologies such as optics, mechanics, and electronics, which can be inserted into the body cavities and internal organs of the human body for direct observation, diagnosis, and treatment. It mainly consists of three main parts: an endoscope, a television information system center, and a television monitor. Since the internal part of the human body usually has insufficient light, especially in some deep or hidden areas, if the light source cannot effectively illuminate these areas, doctors cannot clearly see the tissues, organs and their pathological conditions. Therefore, existing electronic endoscopes often have a light source adjustment device for adjusting the light intensity. However, the existing electronic endoscopes have complex structures, low modularity, and high processing difficulty.

[0003] Therefore, those skilled in the art are committed to developing a reciprocating plate, a fixed substrate, a rotary reciprocating mechanism and an electronic endoscope that are convenient for adjusting the light flux of the light source. Summary of the Invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a reciprocating plate, a fixed substrate, a rotary reciprocating mechanism and an electronic endoscope.

[0005] To achieve the above object, the present invention provides a reciprocating plate, including a reciprocating plate body, on which a light-shielding opening groove, a sliding groove and a driving groove are provided, and a limiting block is arranged in the driving groove. Among them, the light-shielding opening groove adjusts the light flux by sliding left and right. The driving groove provides an installation basis for the limiting block, the limiting block cooperates with the rotating teeth to push the reciprocating plate body to displace, and the sliding groove is used for guiding the reciprocating plate body.

[0006] Preferably, the limiting block includes a first limiting portion and a second limiting portion that are convexly arranged on two opposite side walls of the driving groove in a staggered manner, and the first limiting portion and the second limiting portion protrude relatively. The first limiting portion and the second limiting portion are sequentially abutted against the rotating teeth, thereby pushing the reciprocating plate body to reciprocate.

[0007] Preferably, the center line of the sliding groove is parallel to the center line of the light-shielding opening groove.

[0008] The present invention also provides a fixed substrate, including a substrate body, on which a light source, a slide rail and a rotating body rotatably matched with the substrate body are respectively arranged, and at least one rotating tooth is arranged on the rotating body.

[0009] The present invention also provides a rotary reciprocating mechanism, which includes the reciprocating plate as described in any one of the above and the fixed substrate as described above. The rotary gear cooperates with the limit stop, and the rotary gear pushes the reciprocating plate body to reciprocate, thereby controlling the luminous flux of the light source.

[0010] Preferably, a slide rail base corresponding to the slide rail is provided on the substrate body, and the side of the slide rail base away from the main board is connected to the slide rail.

[0011] Preferably, a limit screw is provided on the side of the slide rail away from the slide rail base, and the diameter of the nut of the limit screw is larger than the width of the chute.

[0012] Preferably, the slide rail and the reciprocating plate body are slidably fitted in the chute.

[0013] Preferably, a driving motor is provided on the substrate body, and the output shaft of the driving motor is fixedly connected to the rotating body.

[0014] The present invention also provides an electronic endoscope, which includes the reciprocating plate as described in any one of the above, or the fixed substrate as described in any one of the above, or the rotary reciprocating mechanism as described in any one of the above.

[0015] The beneficial effects of the present invention are as follows: The structure of the present invention is simple and practical. By the reciprocating motion of the reciprocating plate body, the purpose of adjusting the light receiving intensity can be achieved, avoiding the instability of using electronic control, improving production efficiency, reducing production difficulty, improving product consistency, reducing the processing difficulty of parts, and having a stable structure, which is suitable for wide promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the reciprocating plate in a specific embodiment of the present invention.

[0017] Figure 2 is a schematic structural diagram of the fixed substrate in a specific embodiment of the present invention.

[0018] Figure 3 is a schematic structural diagram of the rotary reciprocating mechanism in a specific embodiment of the present invention.

[0019] Figure 4 is a schematic diagram of the initial state of the rotary reciprocating mechanism in a specific embodiment of the present invention.

[0020] Figure 5 is a schematic diagram of the first motion state of the rotary reciprocating mechanism in a specific embodiment of the present invention.

[0021] Figure 6 is a schematic diagram of the second motion state of the rotary reciprocating mechanism in a specific embodiment of the present invention.

[0022] Figure 7 It is a schematic diagram of the third motion state of the rotary reciprocating mechanism in a specific embodiment of the present invention.

[0023] Figure 8 It is a schematic diagram of the fourth motion state of the rotary reciprocating mechanism in a specific embodiment of the present invention. Specific Embodiment

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific manner, and therefore cannot be construed as a limitation of the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] As Figure 1 shown, a reciprocating plate includes a reciprocating plate body 1, and a light-shielding opening groove 11, a sliding groove 13 and a driving groove 12 are provided on the reciprocating plate body 1. Among them, the opening in the middle of the light-shielding opening groove 11 is the largest, and the openings on the opposite sides gradually narrow along the direction away from the middle. With its shape of being large in the middle and small at both ends, it cooperates with the left and right sliding of the reciprocating plate body 1 to adjust the light flux. A limiting stop 121 is provided in the driving groove 12, and the limiting stop 121 protrudes from the side wall of the driving groove 12. The driving groove 12 provides an installation base for the limiting stop 121, and the limiting stop 121 pushes the reciprocating plate body 1 to perform a linear reciprocating motion by abutting against the rotating tooth 231.

[0026] Furthermore, the limiting stop 121 includes a first limiting portion 121a and a second limiting portion 121b that are staggeredly protruded from two opposite side walls of the driving groove 12. The first limiting portion 121a and the second limiting portion 121b protrude relatively, and their structures are the same. In this embodiment, both the first limiting portion 121a and the second limiting portion 121b are provided with one layer. In other embodiments, other numbers of stacked limiting portions can also be selected according to the situation. The higher the number of added limiting portions, the higher the motion frequency, shorter the stroke and stronger the controllability of the reciprocating plate.

[0027] In this embodiment, two sliding grooves 13 are also provided. In other embodiments, the number of sliding grooves 13 can also be set to at least one. The two sliding grooves 13 described in this embodiment are respectively located on both sides of the driving groove 12, and the center lines of the two sliding grooves 13 are parallel to the center line of the light-shielding opening groove 11 and extend along the moving direction of the reciprocating plate body 1. By providing the sliding grooves 13, a guiding effect is exerted on the reciprocating plate body 1.

[0028] As Figure 2As shown in the figure, the present invention also provides a fixed substrate, including a substrate body 2. The substrate body 2 serves as an installation base, on which a light source 21, a slide rail 22, and a rotating body 23 rotatably engaged with the substrate body 2 are provided. Among them, the slide rail 22 corresponds to the chute 13 and is provided in two. In other embodiments, it can also be set to at least one according to actual situations. The rotating body 23 is provided with at least one rotating tooth 231. In this embodiment, the rotating teeth 231 are provided in three and are all arranged in a staggered manner. The rotating teeth 231 are mainly used to push the reciprocating plate body 1 to reciprocate. In other embodiments, other numbers of rotating teeth 231 can also be set.

[0029] As Figure 3 As shown in the figure, the present invention also provides a rotary reciprocating mechanism, including the reciprocating plate described in any one of the above and the fixed substrate described in any one of the above. The rotating tooth 231 cooperates with the limit stop 121, and the rotating tooth 231 pushes the reciprocating plate body 1 to linearly reciprocate, and controls the luminous flux of the light source 21 through the left and right sliding of the reciprocating plate body 1.

[0030] A slide rail base 221 corresponding to the slide rail 22 is provided on the substrate body 2, and the side of the slide rail base 221 away from the main board is connected to the slide rail 22. In this embodiment, the width of the slide rail base 221 is greater than the width of the slide rail 22. The slide rail base 221 plays a limiting role to prevent the reciprocating plate body 1 from slipping out of the slide rail 22 downward. A limit screw 24 is provided on the side of the slide rail 22 away from the slide rail base 221. The diameter of the nut of the limit screw 24 is greater than the width of the chute 13. The limit screw 24 also plays a limiting role to prevent the reciprocating plate body 1 from slipping out of the slide rail 22 upward. The slide rail 22 is slidably engaged with the reciprocating plate body 1 in the chute 13. In this embodiment, the sliding fit is a clearance fit.

[0031] In this embodiment, a driving motor 25 is also provided on the substrate body 2. The driving motor 25 provides a power source, and the output shaft of the driving motor 25 is fixedly connected to the rotating body 23, and the output shaft of the driving motor 25 drives the rotating body 23 to rotate synchronously.

[0032] The present invention also provides an electronic endoscope, including the reciprocating plate described in any one of the above, or the fixed substrate described above, or the rotary reciprocating mechanism described in any one of the above.

[0033] As Figures 4-8As shown in the figure, during use, the drive motor 25 is started, and the rotating body 23 drives the rotating teeth 231 to rotate synchronously. The rotating teeth 231 first abut against the side wall of the first limiting portion 121a, pushing the reciprocating plate body 1 to move linearly along the slide rail 22. After the rotating teeth 231 push the reciprocating plate body 1 to move a certain distance, they are disengaged from the first limiting portion 121a. Subsequently, they abut against the side wall of the second limiting portion 121b which is arranged in a staggered manner opposite to the first limiting portion 121a, pushing the reciprocating plate body 1 to move in the opposite direction. After moving a certain distance, they are disengaged from the second limiting portion 121b again, and this cycle repeats. The reciprocating plate body 1 adjusts the contact position between the light-shielding opening groove 11 and the light source 21 through the reciprocating movement left and right to achieve the effect of controlling the light flux. The structure of the present invention is simple and has strong practicability. By the reciprocating movement of the reciprocating plate body 1, the purpose of adjusting the light-receiving intensity can be achieved, avoiding the instability of using electronic control, improving the production efficiency, reducing the production difficulty, improving the product consistency, reducing the machining difficulty of parts, and having a stable structure, which is suitable for wide promotion.

[0034] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A reciprocating plate, characterized in that: The reciprocating plate body (1) is provided with a light-shielding opening groove (11), a sliding groove (13) and a driving groove (12), and a limit stop (121) is provided in the driving groove (12).

2. The reciprocating plate according to claim 1, characterized in that: The limit stopper (121) comprises a first limit portion (121a) and a second limit portion (121b) which are staggered and protruded on two opposite side walls of the driving groove (12); the first limit portion (121a) and the second limit portion (121b) are relatively protruded.

3. The reciprocating plate according to any one of claims 1 or 2, characterized in that: The center line of the slide groove (13) is parallel to the center line of the light-shielding opening groove (11).

4. A fixed substrate, characterized in that: It comprises a substrate body (2), on which a light source (21), a slide rail (22) and a rotating body (23) rotatably matched with the substrate body (2) are respectively provided, and on which at least one rotating tooth (231) is provided.

5. A rotary reciprocating mechanism, comprising the reciprocating plate according to any one of claims 1 to 3 and the fixed base plate according to claim 4, characterized in that: The rotating teeth (231) cooperate with the limit stopper (121), and the rotating teeth (231) push the reciprocating plate body (1) to reciprocate, thereby controlling the luminous flux of the light source (21).

6. The rotary reciprocating mechanism according to claim 5, characterized in that: A slide rail base (221) corresponding to the slide rail (22) is provided on the base plate body (2), and the slide rail base (221) is connected to the slide rail (22) at a side away from the main board.

7. The rotary reciprocating mechanism according to claim 6, characterized in that: A limiting screw (24) is provided on one side of the slide rail (22) away from the slide rail base (221), and the nut diameter of the limiting screw (24) is greater than the width of the slide groove (13).

8. The rotary reciprocating mechanism according to claim 7, characterized in that: The slide rail (22) and the reciprocating plate body (1) are slidably matched in the slide groove (13).

9. The rotary reciprocating mechanism according to claim 5, characterized in that: A driving motor (25) is provided on the substrate body (2), and an output shaft of the driving motor (25) is fixedly connected to the rotating body (23).

10. An electronic endoscope, characterized in that: It comprises the reciprocating plate as described in any one of claims 1-3 or the fixed base plate as described in claim 4 or the rotating reciprocating mechanism as described in any one of claims 5-9.

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