Heat dissipation structure of focal length tester

Abstract

The utility model discloses a heat dissipation structure of a focal length tester, and relates to the technical field of heat dissipation structures. The heat dissipation structure of the focal length tester comprises a fixed ring; the bottom of the protective net is fixedly connected to the inner surface wall of the fixing ring; and the heat dissipation cleaning mechanism comprises a power component, a transmission component, a moving component, a cleaning component and a heat dissipation fan, and the moving component is arranged on the protective net. According to the heat dissipation structure of the focal length tester, a fixed bevel gear is driven by a fixed motor to rotate, the fixed bevel gear is meshed with a mounting bevel gear, so that the mounting bevel gear drives a fixed rod to rotate, the fixed rod drives a fixed gear, a connecting gear drives a threaded rod to rotate through transmission of a toothed belt, and the threaded rod is driven to rotate through limiting of a limiting rod; the fixing frame drives the cooling fan and the cleaning rod to move, the cleaning rod moves to clean the protective net, and it is avoided that dust is accumulated in cooling holes of the protective net, and the cooling effect is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation structure technical field, specifically is a focal length tester's heat dissipation structure. BACKGROUND

[0002] Focal length tester is a kind of precision optical testing instrument, mainly applied in the production test process of lens, camera lens, the focal length of lens is measured quickly, and software calculates and exports test result, and automatic focal length appearance adopts autocollimator with parallel light tube to form optical system, guarantees test accuracy by grating, realizes focal length objective measurement.

[0003] The heat dissipation structure of focal length tester is used to ensure the stability and measurement accuracy of the instrument, and the heat dissipation structure of the existing focal length tester generally protects the heat dissipation fan by the protective net, and in long-term use, dust accumulates on the protective net, which is not cleaned in time, and can easily cause poor heat dissipation effect of the heat dissipation fan. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of heat dissipation structure of focal length tester, fixed motor is rotated by fixed bevel gear, the meshing between fixed bevel gear and installation bevel gear makes installation bevel gear drive fixed rod rotation, fixed rod drives fixed gear, the transmission of toothed belt makes connecting gear drive screw rod rotation, the limiting of limiting rod makes fixed frame drive heat dissipation fan and cleaning rod move, cleaning rod moves and cleans protective net, avoid the dust accumulation in the heat dissipation hole of protective net, affect heat dissipation effect.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of heat dissipation structure of focal length tester, comprising: fixed ring;Protective net, the bottom of the protective net is fixedly connected to the inner wall in fixed ring;And heat dissipation cleaning mechanism, the heat dissipation cleaning mechanism includes power component, transmission component, moving component, cleaning component and heat dissipation fan, the moving component is set on the protective net, the cleaning component and transmission component are all set on the moving component, the power component is set on the transmission component, and the heat dissipation fan is set on the cleaning component.

[0006] Further, the moving component includes two screw rods, two limiting rods and four support plates, one end of each support plate is fixedly connected to the inner wall of one side of protective net, the bottom end of each screw rod is rotatably connected to the top of support plate, and the top end of each screw rod is rotatably penetrated into the top of protective net, and the two ends of each limiting rod are fixedly connected between support plate and protective net.

[0007] Further, the transmission component comprises two connecting gears, a fixed gear and a fixed rod, each of the connecting gears is fixedly sleeved on the outer surface of the threaded rod, the bottom end of the fixed rod is rotationally connected to the top of the protective net, the fixed gear is fixedly sleeved on the outer surface of the fixed rod, and each of the connecting gears and the fixed gear is in transmission with each other through a tooth belt.

[0008] Further, the power component comprises a fixed box, a fixed motor, a fixed bevel gear and a mounting bevel gear, the bottom of the fixed box is fixedly connected to the top of the protective net, the mounting bevel gear is fixedly sleeved on the top end of the fixed rod, the fixed motor is fixedly connected to the top of the protective net, the fixed bevel gear is fixedly sleeved on the output end of the fixed motor, and the fixed bevel gear and the mounting bevel gear are in meshing with each other.

[0009] Further, the support component comprises four connecting blocks, a fixed frame and a plurality of cleaning rods, two of the connecting blocks are threadedly sleeved on the outer surfaces of the two threaded rods respectively, the other two of the connecting blocks are slidably sleeved on the outer surfaces of the limiting rods respectively, the outer surfaces of the fixed frame are fixedly connected between the four connecting blocks, one end of each of the cleaning rods is rotationally connected to the outer surface of the fixed frame, and the heat dissipation fan is fixedly connected to the bottom of the fixed frame.

[0010] Further, the outer surface of the fixed ring is fixedly connected with a plurality of mounting pieces.

[0011] The utility model provides a heat dissipation structure of focal length tester. Has the following beneficial effects:

[0012] (1), the heat dissipation structure of focal length tester, through the fixed motor drive fixed bevel gear rotation, through the meshing between fixed bevel gear and mounting bevel gear, make mounting bevel gear drive fixed rod rotation, fixed rod drive fixed gear, through the transmission of tooth belt, make connecting gear drive threaded rod rotation, through the limiting of limiting rod, make fixed frame drive heat dissipation fan and cleaning rod move, and cleaning rod moves and cleans protective net, avoids the dust accumulation in the heat dissipation hole of protective net, and the influence of heat dissipation effect. ACCURATE DRAWINGS

[0013] Figure 1 It is the front view perspective view of the utility model;

[0014] Figure 2 It is the front view perspective partial section view of the utility model;

[0015] Figure 3 It is the side view perspective partial section view of the utility model;

[0016] Figure 4 It is the Figure 3 A part enlarged view of the utility model;

[0017] Figure 5 The top view of the utility model is shown in the figure.

[0018] In the figure: 1, fixed ring; 2, mounting; 3, protective net; 4, heat dissipation cleaning mechanism; 401, fixed box; 402, fixed motor; 403, fixed bevel gear; 404, install bevel gear; 405, fixed rod; 406, fixed gear; 407, connecting gear; 408, threaded rod; 409, limiting rod; 410, fixed frame; 411, connecting block; 412, cleaning rod; 413, heat dissipation fan; 414, support plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: the heat dissipation structure of focal length tester, comprising: fixed ring 1;Protective net 3, the bottom of protective net 3 is fixedly connected in the inner wall of fixed ring 1;And heat dissipation cleaning mechanism 4, heat dissipation cleaning mechanism 4 includes power component, transmission component, moving component, cleaning component and heat dissipation fan 413, moving component is set on protective net 3, cleaning component and transmission component are all set on moving component, power component is set on transmission component, and heat dissipation fan 413 is set on cleaning component.

[0021] In the embodiment: the setting of protective net 3 is used to block dust, the setting of heat dissipation cleaning mechanism 4 including power component is used to provide rotation force, the setting of transmission component is used to drive, cleaning component can move on moving component, the setting of cleaning component is used to clean protective net 3, and heat dissipation fan 413 is used to dissipate heat, and the principle structure of heat dissipation fan 413 belongs to the common knowledge of those skilled in the art, which will not be described in detail here, and its model can be selected according to actual use.

[0022] Specifically, moving component includes two threaded rods 408, two limiting rods 409 and four support plates 414, one end of each support plate 414 is fixedly connected to the inner wall of one side of protective net 3, the bottom end of each threaded rod 408 is rotatably connected to the top of support plate 414, and the top end of each threaded rod 408 is rotatably penetrated into the top of protective net 3, and the two ends of each limiting rod 409 are fixedly connected between support plate 414 and protective net 3.

[0023] In the embodiment, the position of the supporting component can be adjusted by rotating the threaded rods 408 and limiting the position of the limiting rods 409.

[0024] Specifically, the transmission component comprises two connecting gears 407, a fixed gear 406 and a fixed rod 405. Each connecting gear 407 is fixedly sleeved on the outer surface of the threaded rod 408. The bottom end of the fixed rod 405 is rotationally connected to the top of the protective net 3. The fixed gear 406 is fixedly sleeved on the outer surface of the fixed rod 405. Each connecting gear 407 and the fixed gear 406 are in transmission with each other through a toothed belt.

[0025] In the embodiment, the rotating force provided by the power component can drive the fixed rod 405 to drive the fixed gear 406, and the connecting gear 407 can be driven to rotate the threaded rod 408 through the transmission of the toothed belt.

[0026] Specifically, the power component comprises a fixed box 401, a fixed motor 402, a fixed bevel gear 403 and a mounting bevel gear 404. The bottom of the fixed box 401 is fixedly connected to the top of the protective net 3. The mounting bevel gear 404 is fixedly sleeved on the top end of the fixed rod 405. The fixed motor 402 is fixedly connected to the top of the protective net 3. The fixed bevel gear 403 is fixedly sleeved on the output end of the fixed motor 402, and the fixed bevel gear 403 and the mounting bevel gear 404 are in meshing with each other.

[0027] In the embodiment, the fixed motor 402 is turned on to drive the fixed bevel gear 403 to rotate. The mounting bevel gear 404 drives the fixed rod 405 to rotate through the meshing between the fixed bevel gear 403 and the mounting bevel gear 404. The fixed motor 402 is a reversible motor. The principle structure of the fixed motor 402 is known to those skilled in the art, which will not be described in detail here. The model can be selected according to the actual use.

[0028] Specifically, the supporting component comprises four connecting blocks 411, a fixed frame 410 and a plurality of cleaning rods 412. Two connecting blocks 411 are threadedly sleeved on the outer surfaces of two threaded rods 408, and the other two connecting blocks 411 are slidingly sleeved on the outer surfaces of the limiting rods 409. The outer surfaces of the fixed frame 410 are fixedly connected between the four connecting blocks 411. One end of each cleaning rod 412 is rotationally connected to the outer surface of the fixed frame 410. The heat dissipation fan 413 is fixedly connected to the bottom of the fixed frame 410.

[0029] In the embodiment, the fixed frame 410 is connected to the threaded rods 408 and the connecting blocks 411 through the connecting blocks 411. The cleaning rods 412 are arranged to clean the dust in the heat dissipation holes of the protective net 3, so as to avoid the accumulation of dust in the heat dissipation holes of the protective net 3 and affect the heat dissipation effect.

[0030] Specifically, the outer surface of the fixed ring 1 is fixedly connected with a plurality of mounting members 2.

[0031] In this embodiment: the mounting member 2 can install the heat dissipation structure at the position where heat dissipation is needed.

[0032] In use, when the protective net 3 needs to be cleaned, the fixed motor 402 is started, the fixed motor 402 drives the fixed bevel gear 403 to rotate, the fixed bevel gear 403 and the mounting bevel gear 404 are engaged, the mounting bevel gear 404 drives the fixed rod 405 to rotate, the fixed rod 405 drives the fixed gear 406, the connecting gear 407 drives the threaded rod 408 to rotate through the transmission of the toothed belt, the fixed frame 410 drives the heat dissipation fan 413 and the cleaning rod 412 to move through the limiting of the limiting rod 409, the cleaning rod 412 cleans the protective net 3, dust is prevented from accumulating in the heat dissipation holes of the protective net 3, and the heat dissipation effect is affected.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A heat dissipation structure of a focal length tester, characterized in that, Include: Fixed ring (1); Guard net (3), the bottom of the guard net (3) is fixedly connected to the inner wall of the fixed ring (1); And Heat dissipation cleaning mechanism (4), the heat dissipation cleaning mechanism (4) includes power component, transmission component, moving component, cleaning component and heat dissipation fan (413), the moving component is arranged on the guard net (3), the cleaning component and the transmission component are arranged on the moving component, the power component is arranged on the transmission component, and the heat dissipation fan (413) is arranged on the cleaning component.

2. The heat dissipation structure of the focal length tester according to claim 1, wherein: The moving component includes two threaded rods (408), two limit rods (409) and four supporting plates (414), one end of each supporting plate (414) is fixedly connected to the inner wall of one side of the guard net (3), the bottom end of each threaded rod (408) is rotatably connected to the top of the supporting plate (414), and the top end of each threaded rod (408) is rotatably connected to the top of the guard net (3), and the two ends of each limit rod (409) are fixedly connected between the supporting plate (414) and the guard net (3).

3. The heat dissipation structure of the focal length tester according to claim 2, wherein: The transmission component includes two connecting gears (407), a fixed gear (406) and a fixed rod (405), each connecting gear (407) is fixedly sleeved on the outer surface of the threaded rod (408), the bottom end of the fixed rod (405) is rotatably connected to the top of the guard net (3), the fixed gear (406) is fixedly sleeved on the outer surface of the fixed rod (405), and each connecting gear (407) and the fixed gear (406) are driven by a toothed belt.

4. The heat dissipation structure of the focal length tester according to claim 3, wherein: The power component includes a fixed box (401), a fixed motor (402), a fixed bevel gear (403) and a mounting bevel gear (404), the bottom of the fixed box (401) is fixedly connected to the top of the guard net (3), the mounting bevel gear (404) is fixedly sleeved on the top end of the fixed rod (405), the fixed motor (402) is fixedly connected to the top of the guard net (3), the fixed bevel gear (403) is fixedly sleeved on the output end of the fixed motor (402), and the fixed bevel gear (403) and the mounting bevel gear (404) are engaged with each other.

5. The heat dissipation structure of the focal length tester according to claim 4, wherein: It also includes a supporting component, the supporting component includes four connecting blocks (411), a fixed frame (410) and a plurality of cleaning rods (412), two connecting blocks (411) are threadedly sleeved on the outer surfaces of the two threaded rods (408), respectively, the other two connecting blocks (411) are slidably sleeved on the outer surfaces of the limit rods (409), the outer surfaces of the fixed frame (410) are fixedly connected between the four connecting blocks (411), one end of each cleaning rod (412) is rotatably connected to the outer surface of the fixed frame (410), and the heat dissipation fan (413) is fixedly connected to the bottom of the fixed frame (410).

6. The heat dissipation structure of the focal length tester according to claim 5, wherein: The outer surface of the fixed ring (1) is fixedly connected with a plurality of mounting pieces (2).

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