Fine adjustment structure of focal length tester

Abstract

The utility model provides a fine tuning structure of a focal length tester, which belongs to the field of fine tuning structures, and comprises a bottom plate, a stand column, a lifting mechanism, a splicing mechanism and a fine tuning mechanism, in the scheme, a threaded rod A can be driven to rotate through rotation of a hand wheel, and an I-shaped threaded sleeve can be driven to slide in a T-shaped mounting groove through rotation of the threaded rod A; the focal length tester can be driven to move through movement of the I-shaped threaded sleeve, so that the position of the focal length tester is adjusted, the precision of the focal length tester after installation is ensured, the lifting seat and the side plate are detachably connected through the screw, so that the T-shaped sliding block is conveniently detached from the T-shaped sliding groove, and the T-shaped sliding block is slidably connected into the T-shaped sliding groove, so that the focal length tester can be conveniently adjusted. The adjusting seat and the lifting seat can be connected together, the adjusting seat can be driven to ascend and descend through ascending and descending of the lifting seat, and the problem that in the prior art, errors are prone to occurring after a focal length tester is installed, and consequently data are not accurate when the focal length tester conducts testing can be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the fine adjustment structure field, and specifically relates to a fine adjustment structure of focal length tester. BACKGROUND

[0002] The laser diode includes single heterojunction, double heterojunction and quantum well laser diode. The quantum well laser diode has the advantages of low threshold current and high output power, and is the mainstream product in market application. Compared with the laser diode, the laser diode has the advantages of high efficiency, small size and long service life, but its output power is small, linearity is poor, and monochromaticity is not good, so that its application in cable television system is greatly limited, and it cannot transmit multiple channels and high-performance analog signals.

[0003] The focal length tester in the prior art is prone to error after installation, so that the data of the focal length tester during testing is inaccurate, therefore, a fine adjustment structure of focal length tester is required. UTILITY MODEL CONTENTS

[0004] The utility model discloses a fine adjustment structure of focal length tester, which aims at solving the problem of error of the focal length tester in the prior art after installation, leading to inaccurate data of the focal length tester during testing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A fine adjustment structure of focal length tester, comprising:

[0007] A bottom plate;

[0008] A stand column fixedly connected to the top of the bottom plate;

[0009] A lifting mechanism arranged on the stand column;

[0010] A splicing mechanism arranged on the lifting mechanism, wherein the lifting mechanism is used for lifting the splicing mechanism;

[0011] A fine adjustment mechanism arranged on the splicing mechanism, wherein the fine adjustment mechanism is used for connecting the focal length tester and adjusting the position of the focal length tester.

[0012] As a preferred scheme of the utility model, the focal length tester comprises:

[0013] A slide rail component arranged on the stand column;

[0014] A lifting driving component arranged on the stand column, wherein the lifting driving component is connected with the slide rail component.

[0015] As a preferred scheme of the utility model, the slide rail component includes a lifting seat, slide rails and slide rail sliders, the slide rails are provided with two, two the slide rails are fixedly connected to one side end of the stand, and two slide rails are symmetrically arranged, the slide rail slider is provided with two, each The slide rail slider is slidingly connected to each slide rail, the lifting seat is fixedly connected to the same side end of the two slide rail sliders.

[0016] As a preferred scheme of the utility model, the lifting driving component includes a horizontal plate, a U-shaped plate, a forward and reverse motor, a threaded rod B and a square threaded sleeve, the horizontal plate is provided with two, two The horizontal plate is fixedly connected to one side end of the stand, and two horizontal plates are symmetrically arranged, the threaded rod B is rotatably connected between two horizontal plates, and one end of the threaded rod B is rotatably penetrated through the horizontal plate and extends to the outside of the horizontal plate, the square threaded sleeve is threadedly connected to the threaded rod B, and the square threaded sleeve is fixedly connected with the lifting seat, the U-shaped plate is fixedly connected to the top of the stand and one of the horizontal plates, the forward and reverse motor is fixedly connected to the top of the U-shaped plate, and the output end of the forward and reverse motor is rotatably penetrated through the U-shaped plate and is fixedly connected with the threaded rod B.

[0017] As a preferred scheme of the utility model, the splicing mechanism includes a side plate, a T-shaped slider and a T-shaped sliding groove, the T-shaped sliding groove is opened in one side end of the lifting seat, the T-shaped slider is slidingly connected in the T-shaped sliding groove, the side plate is fixedly connected to the side end of the T-shaped slider, and the side plate is detachably connected between the lifting seat.

[0018] As a preferred scheme of the utility model, the fine adjustment mechanism includes an adjusting seat, a hand wheel, a I-shaped threaded sleeve, a threaded rod A and a T-shaped mounting groove, the adjusting seat is fixedly connected to the side end of the side plate, the T-shaped mounting groove is opened in the bottom of the adjusting seat, the threaded rod A is rotatably connected between the side walls of the T-shaped mounting groove, and one end of the threaded rod A is rotatably penetrated through the adjusting seat and extends to the outside of the adjusting seat, the I-shaped threaded sleeve is threadedly connected to the threaded rod A, and the I-shaped threaded sleeve is slidingly connected in the T-shaped mounting groove, and the hand wheel is fixedly connected to one end of the threaded rod A.

[0019] As a preferred scheme of the utility model, the lifting seat and the side plate are detachably connected through screws.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] 1、In the scheme, the hand wheel rotation can drive the threaded rod A to rotate, the threaded rod A rotation can drive the I-shaped threaded sleeve to slide in the T-shaped mounting groove, the I-shaped threaded sleeve movement can drive the focal length tester to move, so as to adjust the position of the focal length tester, ensure the accuracy of the focal length tester after installation, and the lifting seat and the side plate are detachably connected through screws, so that the T-shaped slider is convenient to detach from the T-shaped sliding groove.

[0022] 2、The output end of the forward and reverse motor can drive the threaded rod B to rotate, the threaded rod B can drive the square threaded sleeve to move, the square threaded sleeve can drive the lifting seat to move, the sliding rail is provided for sliding connection with the sliding rail slider, the sliding rail slider is slidingly connected to the sliding rail, the lifting seat is convenient to lift, the T-shaped sliding groove is provided for sliding connection with the T-shaped slider, the T-shaped slider is slidingly connected in the T-shaped sliding groove, the adjusting seat and the lifting seat are connected together, and the adjusting seat is lifted by the lifting seat. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0024] Figure 1 It is a perspective view of the present application;

[0025] Figure 2 It is a structure schematic view of another perspective of the present application;

[0026] Figure 3 It is a sectional view of the present application;

[0027] Figure 4 It is the present application Figure 3 It is an enlarged view of A in the present application;

[0028] Figure 5 It is an explosion view of the T-shaped slider of the present application.

[0029] In the drawings: 1, base plate; 2, stand; 3, horizontal plate; 4, U-shaped plate; 5, forward and reverse motor; 6, lifting seat; 7, side plate; 8, adjusting seat; 9, hand wheel; 10, I-shaped threaded sleeve; 11, threaded rod A; 12, T-shaped mounting groove; 13, threaded rod B; 14, square threaded sleeve; 15, sliding rail; 16, sliding rail slider; 17, T-shaped slider; 18, T-shaped sliding groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] Embodiment 1

[0032] Please refer to Figures 1-5 The technical scheme provided by the embodiment is as follows:

[0033] A fine adjustment structure of a focal length tester, which is composed of a bottom plate 1, a stand column 2, a lifting mechanism, a splicing mechanism and a fine adjustment mechanism, and the stand column 2 is fixedly connected to the top of the bottom plate 1.

[0034] In the specific embodiment of the utility model, the stand column 2 is arranged to connect the horizontal plate 3.

[0035] Specifically, the slide rail component is arranged on the stand column 2, and the slide rail component comprises a lifting seat 6, two slide rails 15 and two slide rail sliders 16.

[0036] In the specific embodiment of the utility model, the slide rail 15 is arranged to slidably connect the slide rail slider 16, and the slide rail slider 16 is slidably connected to the slide rail 15, so that the lifting seat 6 is conveniently lifted.

[0037] Specifically, the lifting driving component is arranged on the stand column 2, and the lifting driving component is connected with the slide rail component.

[0038] In the specific embodiment of the utility model, the output end of the forward-reverse motor 5 is arranged to drive the threaded rod B13 to rotate, the threaded rod B13 is arranged to drive the square threaded sleeve 14 to move, and the square threaded sleeve 14 is arranged to drive the lifting seat 6 to move.

[0039] Specifically, the splicing mechanism is arranged on the lifting mechanism, and the lifting mechanism is arranged to lift the splicing mechanism.

[0040] In the embodiment of the utility model, through the setting of T type sliding groove 18 for sliding connection T type sliding block 17, through the sliding connection of T type sliding block 17 in T type sliding groove 18, can connect together with the adjustment seat 8 and the lifting seat 6, through the lifting of lifting seat 6, can drive the lifting of adjustment seat 8.

[0041] Specifically, the fine adjustment mechanism is arranged on the splicing mechanism, and the fine adjustment mechanism is used for connecting the focal length tester and adjusting the position of the focal length tester.

[0042] In the embodiment of the utility model, through the rotation of hand wheel 9, the threaded rod A11 can be rotated, the threaded rod A11 can be rotated to drive the sliding of the I-shaped threaded sleeve 10 in the T-shaped mounting groove 12, and the I-shaped threaded sleeve 10 can be moved to drive the movement of the focal length tester, so as to adjust the position of the focal length tester and ensure the accuracy after installation.

[0043] Specifically, the lifting seat 6 and the side plate 7 are detachably connected through screws.

[0044] In the embodiment of the utility model, since the lifting seat 6 and the side plate 7 are detachably connected through screws, the T-shaped sliding block 17 can be easily detached from the T-shaped sliding groove 18.

[0045] The working principle or working process of the fine adjustment structure of the focal length tester is as follows: the forward and reverse motor 5 is started, the output end of the forward and reverse motor 5 is rotated to drive the threaded rod B13 to rotate, the threaded rod B13 is rotated to drive the square threaded sleeve 14 to move, the square threaded sleeve 14 is moved to drive the lifting seat 6 to move, the lifting seat 6 is moved to drive the sliding rail sliding block 16 to slide on the sliding rail 15, the lifting seat 6 is moved to drive the adjustment seat 8 to move, the T-shaped sliding block 17 is slidably connected in the T-shaped sliding groove 18, and the side plate 7 and the lifting seat 6 are connected through screws, the hand wheel 9 is rotated, the hand wheel 9 is rotated to drive the threaded rod A11 to rotate, and the threaded rod A11 is rotated to drive the I-shaped threaded sleeve 10 to slide in the threaded rod A11.

[0046] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A fine adjustment structure of a focal length tester, characterized by, The utility model relates to a focal length testing device, including: Base plate (1); Stand (2) is fixedly connected to the top of base plate (1); Lifting mechanism, be located on stand (2); Splicing mechanism, be located on lifting mechanism, the lifting mechanism is used for lifting splicing mechanism; Fine adjustment mechanism, be located on splicing mechanism, the fine adjustment mechanism is used for connecting focal length testing appearance, it is used for adjusting the position of focal length testing appearance.

2. The fine adjustment structure of a focal length tester according to claim 1, wherein, The focal length testing appearance includes: Slide rail part, be located on stand (2); Lifting drive part, be located on stand (2), the lifting drive part is connected with slide rail part.

3. The fine adjustment structure of a focal length tester according to claim 2, wherein: The slide rail part includes lifting seat (6), slide rail (15) and slide rail slider (16), the slide rail (15) is provided with two, two the slide rail (15) all are fixedly connected to one side end of stand (2), and two slide rails (15) are symmetrically arranged, the slide rail slider (16) is provided with two, every slide rail slider (16) is all slidingly connected on every slide rail (15), the lifting seat (6) is fixedly connected to the same side end of two slide rail sliders (16).

4. The fine adjustment structure of a focal length tester according to claim 3, wherein: The lifting drive part includes horizontal plate (3), U type board (4), positive and negative rotation motor (5), threaded rod B (13) and square thread sleeve (14), the horizontal plate (3) is provided with two, two the horizontal plate (3) all are fixedly connected to one side end of stand (2), and two horizontal plates (3) are symmetrically arranged, the threaded rod B (13) is rotatably connected between two horizontal plates (3), and one end of threaded rod B (13) rotatably penetrates horizontal plate (3) and extends to the outside of horizontal plate (3), the square thread sleeve (14) is threadedly connected on threaded rod B (13), and square thread sleeve (14) is fixedly connected with lifting seat (6), the U type board (4) is fixedly connected to the top of stand (2) and one of horizontal plate (3), the positive and negative rotation motor (5) is fixedly connected to the top of U type board (4), and the output end of positive and negative rotation motor (5) rotatably penetrates U type board (4) and is fixedly connected with threaded rod B (13).

5. The fine adjustment structure of a focal length tester according to claim 4, wherein: The splicing mechanism includes side plate (7), T type slider (17) and T type sliding slot (18), the T type sliding slot (18) is opened in one side end of lifting seat (6), the T type slider (17) is slidingly connected in T type sliding slot (18), the side plate (7) is fixedly connected to the side end of T type slider (17), and the side plate (7) is detachably connected between lifting seat (6).

6. The fine adjustment structure of a focal length tester according to claim 5, wherein: The fine adjustment mechanism includes adjusting seat (8), hand wheel (9), I type thread sleeve (10), threaded rod A (11) and T type installation slot (12), the adjusting seat (8) is fixedly connected to the side end of side plate (7), the T type installation slot (12) is opened in the bottom of adjusting seat (8), the threaded rod A (11) is rotatably connected between the side wall of T type installation slot (12), and one end of threaded rod A (11) rotatably penetrates adjusting seat (8) and extends to the outside of adjusting seat (8), the I type thread sleeve (10) is threadedly connected on threaded rod A (11), and I type thread sleeve (10) is slidingly connected in T type installation slot (12), the hand wheel (9) is fixedly connected to one end of threaded rod A (11).

7. The fine adjustment structure of a focal length tester according to claim 6, wherein: The lifting seat (6) is detachably connected with the side plate (7) through a screw.

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