Objective lens control device based on Hall switch

Abstract

The utility model discloses an objective lens control device based on a Hall switch, which relates to the technical field of objective lens control and comprises a bottom plate, a rectangular magnetic plate and an annular magnetic plate, an objective lens converter is arranged on one side of a fixing plate, and a plurality of objective lens bodies are fixedly arranged at the bottom of the objective lens converter. And the annular magnetic plate is fixedly arranged at the top of the objective lens converter. Through the rectangular magnetic plate and the annular magnetic plate, when the objective lens body is adjusted, the rotating plate is pulled up so that the positioning rod is separated from the positioning hole, and the driving mechanism drives the objective lens converter to rotate so that smooth conversion of the objective lens can be realized. In the conversion process, the attraction force between the rectangular magnetic plate and the annular magnetic plate can ensure that the rotating plate and the positioning rod are in a relatively stable state and do not shake, so that when the positioning rod is inserted into the next positioning hole, the movement inertia of the objective lens converter is overcome, the objective lens converter does not shake, and the conversion efficiency is improved. Therefore, the adjustment precision of the objective lens body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of objective lens control, in particular to an objective lens control device based on a Hall switch. Background Art

[0002] The Hall switch is a new type of electrical accessory with the characteristics of no contact, low power consumption, long service life, and high response frequency. It is internally sealed with epoxy resin and can work reliably in various harsh environments.

[0003] After searching, the objective lens control device based on Hall switch with announcement number CN208596252U includes: a motor; a first gear is connected to the motor, and the first gear is driven to rotate by the motor; the objective lens converter includes a fixed plate and a rotating plate, the rotating plate is arranged on the fixed plate, and multiple objective lenses are installed on the rotating plate, and multiple positioning holes are arranged on the rotating plate along the circumferential direction, and one of the positioning holes corresponds to the positioning position, the rotating plate is meshed with the first gear, and the motor drives the rotating plate to rotate by driving the first gear; the magnetic detection body is arranged on the rotating plate and corresponds to the mechanical zero position.

[0004] However, although the existing objective lens control device based on the Hall switch can position the objective lens converter by means of the positioning spring piece and the plug-in during use, the positioning spring piece has a certain elasticity. The rotation process of the objective lens converter and the positioning process of the plug-in will cause the plug-in and the positioning spring piece to vibrate, which will further cause the objective lens converter and multiple objective lens bodies to vibrate, which is not conducive to the precision adjustment of the objective lens body. Utility Model Content

[0005] In view of the above problems existing in the existing objective lens control device based on the Hall switch, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide an objective lens control device based on a Hall switch, which solves the problem that the positioning spring has a certain elasticity, the rotation process of the objective lens converter and the positioning process of the plug-in will cause the plug-in and the positioning spring to shake, and then cause the objective lens converter and multiple objective lens bodies to shake, which is not conducive to the precision adjustment of the objective lens body.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The objective lens control device based on Hall switch comprises a bottom plate, a rectangular magnetic plate and an annular magnetic plate, wherein a fixed plate is fixedly arranged on the top of the bottom plate, an objective lens converter is arranged on one side of the fixed plate, a plurality of objective lens bodies are fixedly arranged on the bottom of the objective lens converter, a rotating plate is arranged above the objective lens converter, a positioning rod is fixedly arranged on the bottom of the rotating plate, an annular groove is provided on the upper side wall of the objective lens converter, a plurality of positioning holes are provided inside the objective lens converter, each of the positioning holes is connected with the annular groove, the positioning rod is plugged into the inside of the corresponding positioning hole, the rectangular magnetic plate is fixedly arranged on the side wall of the rotating plate, the annular magnetic plate is fixedly arranged on the top of the objective lens converter, the rectangular magnetic plate and the annular magnetic plate have opposite magnetic properties, a driving mechanism is provided on the side wall of the fixed plate, and the objective lens converter matches the driving mechanism.

[0009] Preferably, the driving mechanism includes a motor, a gear and a gear ring, a support plate is fixedly provided on the side wall of the fixed plate, the motor is fixedly provided on the top of the support plate, the gear is fixedly sleeved on the output shaft of the motor, the gear ring is fixedly sleeved on the outer wall of the objective lens converter, and the gear is meshingly connected with the gear ring.

[0010] Preferably, a mounting frame is fixedly provided on the top of the fixed plate, a mirror wall is fixedly provided on the side wall of the mounting frame, a lens barrel is fixedly provided on the side wall of the mirror wall, a mounting plate is fixedly provided on the side wall of the lens barrel, a rotating rod is fixedly provided on the bottom of the mounting plate, and the bottom end of the rotating rod is rotatably provided on the top of the objective lens converter.

[0011] Preferably, two connecting plates are fixedly provided on the side wall of the mounting frame, a connecting rod is rotatably provided between the two connecting plates, and the rotating plate is rotatably sleeved on the rod wall of the connecting rod.

[0012] Preferably, a Hall switch is fixedly provided on the side wall of the fixing plate, and the motor is electrically connected to the Hall switch.

[0013] Preferably, a pull ring is fixedly provided on the top of the rotating plate.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. The utility model, by providing a rectangular magnetic plate and an annular magnetic plate, pulls up the rotating plate to make the positioning rod disengage from the positioning hole when adjusting the objective lens body, and the driving mechanism drives the objective lens converter to rotate to realize the smooth conversion of the objective lens. During the conversion process, the attraction between the rectangular magnetic plate and the annular magnetic plate can ensure that the rotating plate and the positioning rod are in a relatively stable state and that the rotating plate and the positioning rod do not shake. When the positioning rod is inserted into the next positioning hole, not only the inertia of the objective lens converter movement is overcome, but also the objective lens converter will not shake, thereby improving the adjustment accuracy of the objective lens body.

[0016] 2. The utility model, through the setting of the driving mechanism, the driving mechanism includes a motor, a gear and a gear ring. Starting the motor can drive the gear to rotate. The gear is meshed with the gear ring. When the gear rotates, it can drive the gear ring and the objective lens converter to rotate, thereby realizing the angle adjustment of multiple objective lens bodies.

[0017] 3. The utility model, through the installation plate and the rotating rod, the installation plate is fixedly arranged on the side wall of the lens barrel, the top end of the rotating rod is fixedly arranged on the side wall of the installation plate, and the bottom end of the rotating rod is rotatably arranged on the top of the objective lens converter, so that the rotating rod can connect the objective lens converter and ensure that the objective lens converter can rotate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 For the utility model Figure 1 A schematic cross-sectional structure diagram of ;

[0021] Figure 3 For the utility model Figure 2 A magnified view of part A;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the top view connection structure of the objective lens converter and the annular magnetic plate.

[0023] Description of reference numerals:

[0024] 1. Base plate; 2. Rectangular magnetic plate; 3. Annular magnetic plate; 4. Fixed plate; 5. Objective lens converter; 6. Objective lens body; 7. Turntable; 8. Positioning rod; 9. Annular slide groove; 10. Positioning hole; 11. Motor; 12. Gear; 13. Gear ring; 14. Support plate; 15. Mounting frame; 16. Mirror wall; 17. Mirror barrel; 18. Mounting plate; 19. Turntable; 20. Connecting plate; 21. Connecting rod; 22. Hall switch; 23. Pull ring. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model embodiment discloses an objective lens control device based on a Hall switch.

[0027] The utility model provides Figure 1-4 The objective lens control device based on the Hall switch shown in the figure comprises a bottom plate 1, a rectangular magnetic plate 2 and an annular magnetic plate 3, a fixing plate 4 is fixedly arranged on the top of the bottom plate 1, an objective lens converter 5 is arranged on one side of the fixing plate 4, a plurality of objective lens bodies 6 are fixedly arranged on the bottom of the objective lens converter 5, a rotating plate 7 is arranged above the objective lens converter 5, a positioning rod 8 is fixedly arranged on the bottom of the rotating plate 7, an annular groove 9 is provided on the upper side wall of the objective lens converter 5, a plurality of positioning holes 10 are provided inside the objective lens converter 5, each positioning hole 10 is connected to the annular groove 9, the positioning rod 8 is inserted into the corresponding positioning hole 10, the rectangular magnetic plate 2 is fixedly arranged on the side of the rotating plate 7 The annular magnetic plate 3 is fixedly arranged on the top of the objective lens converter 5, the rectangular magnetic plate 2 and the annular magnetic plate 3 have opposite magnetism, the side wall of the fixed plate 4 is provided with a driving mechanism, the objective lens converter 5 is matched with the driving mechanism, and the rectangular magnetic plate 2 and the annular magnetic plate 3 are provided, and the attraction between the rectangular magnetic plate 2 and the annular magnetic plate 3 during the conversion process can ensure that the rotating plate 7 and the positioning rod 8 are in a relatively stable state, and ensure that the rotating plate 7 and the positioning rod 8 do not shake, and then when the positioning rod 8 is inserted into the next positioning hole 10, it not only overcomes the inertia of the movement of the objective lens converter 5, but also does not cause the objective lens converter 5 to shake, thereby improving the adjustment accuracy of the objective lens body 6.

[0028] In order to drive the gear ring 13 and the objective lens converter 5 to rotate, the angle adjustment of multiple objective lens bodies can be achieved. Figure 1-4 As shown, the driving mechanism includes a motor 11, a gear 12 and a gear ring 13. A support plate 14 is fixedly provided on the side wall of the fixed plate 4. The motor 11 is fixedly provided on the top of the support plate 14. The gear 12 is fixedly sleeved on the output shaft of the motor 11. The gear ring 13 is fixedly sleeved on the outer wall of the objective lens converter 5. The gear 12 is meshedly connected with the gear ring 13. By utilizing the set driving mechanism, the gear ring 13 and the objective lens converter 5 can be driven to rotate, thereby realizing the angle adjustment of multiple objective lens bodies.

[0029] In order to connect the objective lens converter 5 and ensure that the objective lens converter 5 can rotate stably, Figure 1-4 As shown, a mounting frame 15 is fixedly provided on the top of the fixing plate 4, a mirror wall 16 is fixedly provided on the side wall of the mounting frame 15, a lens barrel 17 is fixedly provided on the side wall of the mirror wall 16, a mounting plate 18 is fixedly provided on the side wall of the lens barrel 17, a rotating rod 19 is fixedly provided on the bottom of the mounting plate 18, and the bottom end of the rotating rod 19 is rotatably provided on the top of the objective lens converter 5. By utilizing the provided mounting plate 18 and the rotating rod 19, the objective lens converter 5 can be connected and it is ensured that the objective lens converter 5 can rotate stably.

[0030] In order to connect the rotating plate 7 and ensure that the rotating plate 7 can rotate smoothly, Figure 1-3 As shown, two connecting plates 20 are fixedly provided on the side wall of the mounting frame 15, and a connecting rod 21 is rotatably provided between the two connecting plates 20. The rotating plate 7 is rotatably sleeved on the rod wall of the connecting rod 21, and the rotating plate 7 can be connected by utilizing the provided connecting rod 21, thereby ensuring that the rotating plate 7 can rotate smoothly.

[0031] In order to send a signal to the motor 11 through the Hall switch 22, and then control the driving of the motor 11, as shown in FIG. Figure 1-2 As shown, a Hall switch 22 is fixedly disposed on the side wall of the fixed plate 4 , and the motor 11 is electrically connected to the Hall switch 22 . By utilizing the Hall switch 22 , a signal can be sent to the motor 11 , thereby controlling the driving of the motor 11 .

[0032] Finally, in order to facilitate the user to pull up the rotating plate 7, as shown in FIG. Figure 3 As shown, a pull ring 23 is fixedly provided on the top of the rotating plate 7, and the pull ring 23 is used to facilitate the user to pull up the rotating plate 7.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An objective lens control device based on a Hall switch, comprising a base plate (1), a rectangular magnetic plate (2) and an annular magnetic plate (3), characterized in that: A fixing plate (4) is fixedly arranged on the top of the bottom plate (1), an objective lens converter (5) is arranged on one side of the fixing plate (4), a plurality of objective lens bodies (6) are fixedly arranged on the bottom of the objective lens converter (5), a rotating plate (7) is arranged above the objective lens converter (5), a positioning rod (8) is fixedly arranged on the bottom of the rotating plate (7), an annular sliding groove (9) is provided on the upper side wall of the objective lens converter (5), a plurality of positioning holes (10) are provided inside the objective lens converter (5), each of the positioning holes (10) is connected to the annular sliding groove (9), the positioning rod (8) is plugged into the inside of the corresponding positioning hole (10), the rectangular magnetic plate (2) is fixedly arranged on the side wall of the rotating plate (7), the annular magnetic plate (3) is fixedly arranged on the top of the objective lens converter (5), the rectangular magnetic plate (2) and the annular magnetic plate (3) have opposite magnetic properties, a driving mechanism is provided on the side wall of the fixing plate (4), and the objective lens converter (5) matches the driving mechanism.

2. The objective lens control device based on a Hall switch according to claim 1, characterized in that: The driving mechanism comprises a motor (11), a gear (12) and a gear ring (13); a support plate (14) is fixedly arranged on the side wall of the fixed plate (4); the motor (11) is fixedly arranged on the top of the support plate (14); the gear (12) is fixedly sleeved on the output shaft of the motor (11); the gear ring (13) is fixedly sleeved on the outer wall of the objective lens converter (5); and the gear (12) and the gear ring (13) are meshingly connected.

3. The objective lens control device based on a Hall switch according to claim 1, characterized in that: A mounting frame (15) is fixedly arranged on the top of the fixing plate (4), a mirror wall (16) is fixedly arranged on the side wall of the mounting frame (15), a lens barrel (17) is fixedly arranged on the side wall of the mirror wall (16), a mounting plate (18) is fixedly arranged on the side wall of the lens barrel (17), a rotating rod (19) is fixedly arranged on the bottom of the mounting plate (18), and the bottom end of the rotating rod (19) is rotatably arranged on the top of the objective lens converter (5).

4. The objective lens control device based on the Hall switch according to claim 3, characterized in that: Two connecting plates (20) are fixedly arranged on the side wall of the mounting frame (15), a connecting rod (21) is rotatably arranged between the two connecting plates (20), and the rotating plate (7) is rotatably sleeved on the rod wall of the connecting rod (21).

5. The objective lens control device based on a Hall switch according to claim 2, characterized in that: A Hall switch (22) is fixedly arranged on the side wall of the fixed plate (4), and the motor (11) is electrically connected to the Hall switch (22).

6. The objective lens control device based on a Hall switch according to claim 1, characterized in that: A pull ring (23) is fixedly arranged on the top of the rotating plate (7).

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