A position adjustment device

Abstract

The present invention belongs to the technical field of gene sequencing instruments and equipment, and discloses a position adjustment device for adjusting the rotation angle of an optical element about a first direction and a second direction. The position adjustment device includes a housing, a fixing module, and an adjustment module; a first screw is threadedly fixedly connected to the fixing module; the present invention rotates the first screw so that the first screw and the fixing module are jointly rotated and adjusted about the first direction; when the optical element on the fixing module rotates about the first direction to a preset angle, the second screw is tightened to complete the positioning of the first adjustment member and the fixing module along the first direction; the present invention rotates the third screw so that the first adjustment member can drive the fixing module to rotate about the second direction. The position adjustment device of the present invention has an optimized structure, reducing production costs, and can adjust the optical element with two degrees of freedom, conveniently controlling the refraction angle of light by the optical element.

Description

Technical Field

[0001] The present invention relates to the technical field of gene sequencing instruments and equipment, and in particular to a position adjustment device. Background Art

[0002] The mainstream gene sequencing technology on the market currently obtains gene sequence information by detecting labeled fluorescence. Microscopic imaging technology is required in the detection process. Microscopic imaging technology is to project the excitation light emitted by the illumination system onto the biochip through filters and dichroic mirrors. The fluorescence generated by the laser irradiation of the sample on the biochip passes through the objective lens, dichroic mirror, tube lens, filter and finally reaches the CCD for imaging. During this propagation process, the fluorescence will undergo multiple reflections and projections, and the diameter of the final pixel point is only tens of nanometers. This requires that each refraction angle of the light path must be very precise and the error must be extremely small to ensure the final imaging position and shape. No obvious changes will occur. If the optical element is subjected to external forces, its surface will be deformed, resulting in slight changes in the light spot. When the number of optical elements in the optical imaging system is large, the accumulation of such light spot deformation errors will eventually cause the pixels of the image to appear blurred, elliptical, star-shaped, etc. Therefore, the magnitude of the force applied to the fixed optical element must be controlled, that is, to ensure that the fixation of the optical element does not affect the shape of the imaging pixel. In addition, the mainstream machining technology on the market can only reach 10 microns. Its machining accuracy, part surface treatment, installation and other errors will cause the installation position of the optical element to deviate from the ideal state, resulting in deflection of the light path. Therefore, the optical elements used in the entire microscopic imaging system, especially those involving the refraction of the light path, must be adjustable.

[0003] Currently, most optical path adjustable devices on the market use active electromagnetic drive adjustment or piezoelectric ceramic adjustment. They control the drive module by real-time detection of the tilt and deflection angles of optical components to adjust the optical components to the ideal state. Although this method can achieve precise and effective control, it is expensive, large in size, has low adaptability, and a long R&D cycle. It is not suitable for gene sequence detection instruments with a large number of optical components.

[0004] Therefore, there is an urgent need for a position adjustment device to optimize the structure and reduce production costs. Summary of the Invention

[0005] One object of the present invention is to provide a position adjustment device with optimized structure and reduced production cost.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A position adjustment device for adjusting the rotation angle of an optical element around a first direction and a second direction, the position adjustment device comprising:

[0008] Box;

[0009] A fixing module is provided in the box, the optical element is fixedly provided on the fixing module, and a first connecting hole and a second connecting hole are provided on the same side of the fixing module;

[0010] The adjusting module comprises a first adjusting member, a second adjusting member, a first screw, a second screw, a third screw and a fourth screw, wherein the first adjusting member is arranged on a side of the fixing module where the first connecting hole is opened, the first screw is threadedly connected to the first connecting hole, the first adjusting member is provided with an arc-shaped keyway, the second screw passes through the arc-shaped keyway and is threadedly connected to the second connecting hole, the second adjusting member is covered by the outer periphery of the first adjusting member and is fixedly connected to the box body, the first adjusting member is provided with an arc-shaped prismatic groove on a side facing the second adjusting member, the second adjusting member is provided with a third connecting hole, the third screw passes through the third connecting hole and is inserted into the arc-shaped prismatic groove, the side wall of the first adjusting member is provided with a fourth connecting hole, the side wall of the second adjusting member is provided with a fifth connecting hole, the fourth screw passes through the fifth connecting hole and is inserted into the fourth connecting hole, the central axis of the first screw is perpendicular to the central axis of the fourth screw, the first direction is the central axis direction of the first screw, and the second direction is the central axis direction of the fourth screw.

[0011] As an optional technical solution, the adjustment module further includes a first spring, one end of the first spring abuts against the first adjustment member, and the other end of the first spring abuts against the first screw. When the first screw is screwed into the first connecting hole, the first spring is compressed.

[0012] As an optional technical solution, the side wall of the fixing module is provided with a central cylinder, the first connecting hole is opened on the central cylinder, the central cylinder extends through the first through hole of the first adjusting member, the first spring is a straight cylinder spring, and the first spring is sleeved on the outer circumference of the central cylinder.

[0013] As an optional technical solution, the adjustment module further includes a second spring, one end of the second spring abuts against the first adjustment member, and the other end of the second spring abuts against the second adjustment member.

[0014] As an optional technical solution, the number of the arc-shaped prismatic grooves is two, and the two arc-shaped prismatic grooves are symmetrically arranged on both sides of the central axis of the first screw, and each arc-shaped prismatic groove is arranged corresponding to one of the third connecting holes and one of the third screws.

[0015] As an optional technical solution, the fourth screw is set in two, and the two fourth screws are symmetrically arranged on both sides of the central axis of the first screw. Each fourth screw is arranged corresponding to one fourth connecting hole and one fifth connecting hole, and the central axis of the fourth screw is perpendicular to the connecting line of the centers of the two third connecting holes.

[0016] As an optional technical solution, a second through hole is opened in the middle of the second adjusting member, and the area where the second through hole is located covers the first screw and the second screw.

[0017] As an optional technical solution, the fixing module includes a mounting member and a fixing member, the mounting member is provided with a receiving groove, the optical element is installed in the receiving groove, and the fixing member is fixedly installed on the side of the mounting member where the receiving groove is provided, and the fixing member is used to confine the optical element in the receiving groove.

[0018] As an optional technical solution, the fixing module further includes a vibration damper, the fixing member is provided with a limiting groove corresponding to the position of the accommodating groove, the vibration damper is installed in the limiting groove, and the vibration damper is used to abut against the optical element.

[0019] As an optional technical solution, a positioning groove is provided on the side of the fixing member facing the mounting member, the extension direction of the positioning groove is perpendicular to the central axis of the first screw, and the positioning portion of the mounting member is adapted to be snapped into the positioning groove.

[0020] The beneficial effects of the present invention are:

[0021] The present invention provides a position adjustment device for adjusting the rotation angle of an optical element around a first direction and a second direction, the first direction being the direction of the central axis of a first screw, and the second direction being the direction of the central axis of a fourth screw; before performing direction adjustment, the first screw is tightened so that the first screw is threadedly fixedly connected to a fixing module; when it is necessary to adjust the rotation angle of the optical element around the first direction, the first screw is rotated so that the first screw and the fixing module rotate together around the first direction; after the optical element on the fixing module rotates to a preset angle around the first direction, the second screw is tightened, and the second screw fixes the first adjustment member to the fixing module, thereby completing the positioning of the first adjustment member and the fixing module along the first direction; when it is necessary to adjust the rotation angle of the optical element around the second direction, the third screw is rotated; since the fourth screw passes through the second adjustment member from the side and is inserted into the first adjustment member, when the third screw pushes the first adjustment member from the top surface, the first adjustment member can drive the fixing module to rotate around the second direction; after the optical element on the fixing module rotates to a preset angle around the second direction, the rotation of the third screw is stopped. The position adjustment device of the present invention has an optimized structure, which reduces production costs. The position adjustment device can adjust the optical element with two degrees of freedom, making it easy to control the refraction angle of the optical element to light. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described in detail below based on the accompanying drawings and examples;

[0023] Figure 1 It is a front view of the position adjustment device according to the embodiment;

[0024] Figure 2 for Figure 1 Cross-sectional view of the AA cross section;

[0025] Figure 3 for Figure 1 Cross-sectional view of the middle BB cross section;

[0026] Figure 4 Schematic diagram of the structure of the position adjustment device according to the embodiment;

[0027] Figure 5 is a structural schematic diagram of the first adjusting member according to the embodiment;

[0028] Figure 6 is a structural schematic diagram of the second adjusting member according to the embodiment;

[0029] Figure 7 This is a structural diagram of the fixing module according to the embodiment;

[0030] Figure 8 Schematic diagram of the structure of the mounting member described in the embodiment.

[0031] In the picture:

[0032] 100. Optical components;

[0033] 1. Box body;

[0034] 2. Fixing module; 21. Mounting member; 211. First connecting hole; 212. Second connecting hole; 213. Center cylinder; 214. Accommodating groove; 215. Positioning portion; 216. First limiting side wall; 217. Second limiting side wall; 218. Mounting body; 22. Fixing member; 221. Limiting groove; 222. Fixing wall; 23. Vibration damping member;

[0035] 3. Adjustment module; 31. First adjustment member; 311. Arc-shaped keyway; 312. Arc-shaped prismatic groove; 313. Fourth connecting hole; 314. First through hole; 32. Second adjustment member; 321. Third connecting hole; 322. Fifth connecting hole; 323. Second through hole; 33. First screw; 34. Second screw; 35. Third screw; 36. Fourth screw; 37. First spring; 38. Second spring; 39. Fifth screw. DETAILED DESCRIPTION

[0036] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0037] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0040] In this specification, reference to terms such as "one embodiment" or "example" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0041] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0042] like Figures 1 to 8As shown, this embodiment provides a position adjustment device for adjusting the rotation angle of the optical element 100 around the first direction and the second direction, and the position adjustment device includes a box body 1, a fixing module 2 and an adjustment module 3; the fixing module 2 is arranged in the box body 1, and the optical element 100 is fixedly arranged on the fixing module 2, and a first connection hole 211 and a second connection hole 212 are opened on the same side of the fixing module 2; the adjustment module 3 includes a first adjustment member 31, a second adjustment member 32, a first screw 33, a second screw 34, a third screw 35 and a fourth screw 36, the first adjustment member 31 is arranged on a side of the fixing module 2 where the first connection hole 211 is opened, the first screw 33 is threadedly connected to the first connection hole 211, the first adjustment member 31 is opened with an arc-shaped key groove 311, and the second screw 34 passes through the arc-shaped key groove 311 is threadedly connected to the second connecting hole 212, the second adjusting member 32 is covered on the outer periphery of the first adjusting member 31 and fixedly connected to the box body 1, and an arc-shaped prismatic groove 312 is provided on the side of the first adjusting member 31 facing the second adjusting member 32, and a third connecting hole 321 is provided on the second adjusting member 32. The third screw 35 passes through the third connecting hole 321 and is inserted into the arc-shaped prismatic groove 312. A fourth connecting hole 313 is provided on the side wall of the first adjusting member 31, and a fifth connecting hole 322 is provided on the side wall of the second adjusting member 32. The fourth screw 36 passes through the fifth connecting hole 322 and is inserted into the fourth connecting hole 313. The central axis of the first screw 33 is perpendicular to the central axis of the fourth screw 36. The first direction is the central axis direction of the first screw 33, and the second direction is the central axis direction of the fourth screw 36.

[0043] Specifically, in this embodiment, the first direction is the direction of the central axis of the first screw 33, and the second direction is the direction of the central axis of the fourth screw 36; before adjusting the direction, tighten the first screw 33 so that the first screw 33 is threadedly fixedly connected to the fixing module 2; when it is necessary to adjust the rotation angle of the optical element 100 around the first direction, rotate the first screw 33 so that the first screw 33 and the fixing module 2 rotate together around the first direction; after the optical element 100 on the fixing module 2 rotates around the first direction to a preset angle, tighten the second screw 34, and the second screw 34 screws the first adjustment angle. The joint member 31 is fixedly connected to the fixing module 2, thereby completing the positioning of the first adjustment member 31 and the fixing module 2 along the first direction. When the rotation angle of the optical element 100 around the second direction needs to be adjusted, the third screw 35 is rotated. Since the fourth screw 36 passes through the second adjustment member 32 from the side and is inserted into the first adjustment member 31, the third screw 35 pushes against the first adjustment member 31 from the top surface, allowing the first adjustment member 31 to drive the fixing module 2 to rotate around the second direction. When the optical element 100 on the fixing module 2 rotates around the second direction to a preset angle, the rotation of the third screw 35 is stopped. The position adjustment device of this embodiment has an optimized structure, reducing production costs. The position adjustment device can adjust the optical element 100 with two degrees of freedom, conveniently controlling the refraction angle of the optical element 100 to light.

[0044] In this embodiment, the big head of the fourth screw 36 is set to an external thread, and the small head of the fourth screw 36 is not set to an external thread. The big head of the fourth screw 35 is threadedly connected to the second adjusting member 32, that is, the fifth connecting hole 322 is a threaded hole, and the small head of the fourth screw 35 is inserted into the fourth connecting hole 313 of the first adjusting member 31. The fourth connecting hole 313 is a smooth hole, so the first adjusting member 31 can rotate relative to the fourth screw 35.

[0045] In this embodiment, the size of the arc-shaped keyway 311 can be set according to actual needs. When the optical element 100 needs to rotate a larger angle around the first direction, a larger arc-shaped keyway 311 is set, which can increase the limit value of the rotation of the optical element 100 around the first direction; and since an arc-shaped prism groove 312 is provided on the first adjusting member 31, when the third screw 35 abuts against the bottom of the arc-shaped prism groove 312, it will not limit the rotation of the first adjusting member 31 and the fixing module 2 around the first direction.

[0046] Optionally, the adjustment module 3 further includes a first spring 37, one end of which abuts the first adjustment member 31, and the other end of which abuts the first screw 33. When the first screw 33 is screwed into the first connection hole 211, the first spring 37 is compressed. When the first screw 33 is tightened, the first spring 37 is compressed, forcing the first adjustment member 31 to fit tightly against the fixing module 2, allowing the second screw 34 to quickly locate and screw into the second connection hole 212.

[0047] Optionally, a central cylinder 213 is provided on the side wall of the fixing module 2, a first connecting hole 211 is opened on the central cylinder 213, the central cylinder 213 extends through the first through hole 314 of the first adjusting member 31, and the first spring 37 is a straight spring. The first spring 37 is sleeved on the outer periphery of the central cylinder 213, which can ensure the compression stability of the first spring 37 and prevent the first spring 37 from detaching from the first screw 33 and the first adjusting member 31.

[0048] Optionally, the adjustment module 3 further includes a second spring 38, one end of which abuts the first adjustment member 31, and the other end of the second spring 38 abuts the second adjustment member 32. After the second adjustment member 32 is fixed to the housing 1 via the fifth screw 39, the second spring 38 is compressed, forcing the first adjustment member 31 to fit tightly against the fixing module 2. After the third screw 35 is rotated, the second spring 38 can force the first adjustment member 31 and the fixing module 2 to maintain the angle after rotation about the second direction, ensuring that they do not deflect in a vibrating environment.

[0049] Optionally, two arcuate prism grooves 312 are provided, and the two arcuate prism grooves 312 are symmetrically arranged on either side of the central axis of the first screw 33. Each arcuate prism groove 312 corresponds to a third connection hole 321 and a third screw 35. There are two third connection holes 321 and two arcuate prism grooves 312, and two third screws 35 are provided accordingly. When the optical element 100 is rotationally adjusted in the second direction, one of the third screws 35 is rotated forward to move it toward the first adjustment member 31, i.e., the third screw 35 pushes the first adjustment member 31. Then, the other third screw 35 is rotated backward to move it away from the first adjustment member 31, i.e., the third screw 35 limits the rotation of the first adjustment member 31. In this embodiment, two coaxially arranged fourth screws 36 serve as fulcrums for the first adjustment member 31. The two third screws 35 use the principle of leverage to adjust the first adjustment member 31, allowing the first adjustment member 31 to rotate to a predetermined angle in the second direction.

[0050] Optionally, two fourth screws 36 are provided, and the two fourth screws 36 are symmetrically arranged on both sides of the central axis of the first screw 33, each fourth screw 36 is arranged corresponding to a fourth connecting hole 313 and a fifth connecting hole 322, and the central axis of the fourth screw 36 is perpendicular to the connecting line of the centers of the two third connecting holes 321.

[0051] Optionally, a second through hole 323 is formed in the middle of the second adjusting member 32 , and the area where the second through hole 323 is located covers the first screw 33 and the second screw 34 . An operator can operate the first screw 33 and the second screw 34 by passing a tool through the second through hole 323 .

[0052] Optionally, the fixing module 2 includes a mounting member 21 and a fixing member 22. The mounting member 21 defines a receiving groove 214, and the optical element 100 is mounted in the receiving groove 214. The fixing member 22 is fixedly mounted on a side of the mounting member 21 where the receiving groove 214 is defined. The fixing member 22 is used to confine the optical element 100 in the receiving groove 214. The optical element 100 is confined in the receiving groove 214, and the mounting member 21 and the fixing member 22 isolate and protect the optical element 100.

[0053] Optionally, the fixing module 2 also includes a vibration damper 23. The fixing member 22 has a limiting groove 221 at a position corresponding to the accommodating groove 214. The vibration damper 23 is installed in the limiting groove 221. The vibration damper 23 is used to abut against the optical element 100 to ensure that the rigid impact on the optical element 100 can be reduced in a vibration environment.

[0054] In this embodiment, the vibration damping member 23 is made of a porous soft material to improve the buffering capacity of the vibration damping member 23 .

[0055] Optionally, a positioning groove is provided on the side of the fixing member 22 facing the mounting member 21, and the extension direction of the positioning groove is perpendicular to the central axis of the first screw 33. The positioning portion 215 of the mounting member 21 is adapted to be snapped into the positioning groove to ensure that the mounting member 21 and the fixing member 22 can be quickly matched and fixed, and to avoid vibration that causes the mounting member 21 and the fixing member 22 to become loose.

[0056] In this embodiment, the first connecting hole 211 , the second connecting hole 212 and the central column 213 are all disposed on the first limiting side wall 216 of the mounting member 21 .

[0057] Optionally, the mounting member 21 further includes a mounting body 218 and a second limiting sidewall 217. The second limiting sidewall 217 is disposed opposite the first limiting sidewall 216, and the mounting body 218 is positioned between the first limiting sidewall 216 and the second limiting sidewall 217. The receiving groove 214 is defined in the mounting body 218, and a sixth connection hole perpendicular to the first direction is defined in a non-receiving area of the mounting body 218. The positioning portion 215 is the portion of the second limiting sidewall 217 that extends and inserts into the positioning groove.

[0058] When the fixing member 22 is attached to the surface of the mounting body 218, the first limiting side wall 216 abuts against one end of the fixing member 22, and the positioning portion 215 of the second limiting side wall 217 is inserted into the positioning groove of the fixing member 22, so that the fixing member 22 can be quickly attached to the mounting member 21, and a screw is used to pass through the fixing member 22 and be threadedly fastened to the sixth connecting hole.

[0059] Optionally, a fixing wall 222 is provided on one side of the positioning groove, a seventh connecting hole parallel to the first direction is provided on the fixing wall 222, and an eighth connecting hole parallel to the first direction is provided on the second limiting side wall 217, and screws are passed through the seventh connecting hole and the eighth connecting hole to fix the fixing member 22 and the mounting member 21 in connection.

[0060] In this embodiment, screws are used to securely connect the mounting member 21 and the fixing member 22 in two mutually perpendicular directions, thereby improving the positioning accuracy of the optical element 100 .

[0061] Furthermore, the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A position adjustment device for adjusting the rotation angle of an optical element (100) around a first direction and a second direction, characterized in that: The position adjustment device comprises: Box (1); A fixing module (2) is arranged in the box (1), the optical element (100) is fixedly arranged on the fixing module (2), and a first connecting hole (211) and a second connecting hole (212) are opened on the same side of the fixing module (2); An adjusting module (3), the adjusting module (3) comprising a first adjusting member (31), a second adjusting member (32), a first screw (33), a second screw (34), a third screw (35) and a fourth screw (36), wherein the first adjusting member (31) is arranged on a side of the fixing module (2) where the first connecting hole (211) is provided, the first screw (33) is threadedly connected to the first connecting hole (211), the first adjusting member (31) is provided with an arc-shaped keyway (311), the second screw (34) passes through the arc-shaped keyway (311) and is threadedly connected to the second connecting hole (212), the second adjusting member (32) is covered on the outer periphery of the first adjusting member (31) and is fixedly connected to the box body (1), the first adjusting member (31) faces the second adjusting member (31). A circular arc-shaped prismatic groove (312) is provided on one side of the adjusting member (32), a third connecting hole (321) is provided on the second adjusting member (32), the third screw (35) is inserted into the circular arc-shaped prismatic groove (312) after passing through the third connecting hole (321), a fourth connecting hole (313) is provided on the side wall of the first adjusting member (31), a fifth connecting hole (322) is provided on the side wall of the second adjusting member (32), the fourth screw (36) is inserted into the fourth connecting hole (313) after passing through the fifth connecting hole (322), the central axis of the first screw (33) is perpendicular to the central axis of the fourth screw (36), the first direction is the central axis direction of the first screw (33), and the second direction is the central axis direction of the fourth screw (36); Before performing direction adjustment, the first screw (33) is tightened so that the first screw (33) is threadedly fixedly connected to the fixing module (2); when adjusting the rotation angle of the optical element (100) around the first direction, the first screw (33) is rotated so that the first screw (33) and the fixing module (2) can rotate together around the first direction; after the optical element (100) on the fixing module (2) rotates around the first direction to a preset angle, the second screw (34) is tightened so that the second screw (34) connects the first adjusting member (31) to the fixing module (2). The fixing module (2) is fixedly connected to complete the positioning of the first adjusting member (31) and the fixing module (2) along the first direction; when adjusting the rotation angle of the optical element (100) around the second direction, the third screw (35) is rotated, and when the third screw (35) pushes the first adjusting member (31) from the top surface, the first adjusting member (31) can drive the fixing module (2) to rotate around the second direction; when the optical element (100) on the fixing module (2) rotates around the second direction to a preset angle, the rotation of the third screw (35) is stopped.

2. The position adjustment device according to claim 1, characterized in that: The adjustment module (3) further comprises a first spring (37), one end of the first spring (37) abuts against the first adjustment member (31), and the other end of the first spring (37) abuts against the first screw (33), and when the first screw (33) is screwed into the first connecting hole (211), the first spring (37) is compressed.

3. The position adjustment device according to claim 2, characterized in that: A central cylinder (213) is provided on the side wall of the fixing module (2); the first connecting hole (211) is opened on the central cylinder (213); the central cylinder (213) extends through the first through hole (314) of the first adjusting member (31); the first spring (37) is a straight spring; the first spring (37) is sleeved on the outer periphery of the central cylinder (213).

4. The position adjustment device according to claim 1, characterized in that: The regulating module (3) further comprises a second spring (38), one end of the second spring (38) abuts against the first regulating member (31), and the other end of the second spring (38) abuts against the second regulating member (32).

5. The position adjustment device according to claim 4, characterized in that: The arc-shaped prismatic grooves (312) are provided in two numbers, and the two arc-shaped prismatic grooves (312) are symmetrically arranged on both sides of the central axis of the first screw (33), and each arc-shaped prismatic groove (312) is provided correspondingly to one third connecting hole (321) and one third screw (35).

6. The position adjustment device according to claim 5, characterized in that: The fourth screws (36) are provided in two numbers, and the two fourth screws (36) are symmetrically arranged on both sides of the central axis of the first screw (33), and each fourth screw (36) is provided corresponding to one fourth connecting hole (313) and one fifth connecting hole (322), and the central axis of the fourth screw (36) is perpendicular to the connecting line of the centers of the two third connecting holes (321).

7. The position adjustment device according to claim 1, characterized in that: A second through hole (323) is provided in the middle of the second adjusting member (32), and the area where the second through hole (323) is located covers the first screw (33) and the second screw (34).

8. The position adjustment device according to claim 1, characterized in that: The fixing module (2) comprises a mounting member (21) and a fixing member (22); the mounting member (21) is provided with a receiving groove (214); the optical element (100) is mounted in the receiving groove (214); the fixing member (22) is fixedly mounted on a side of the mounting member (21) on which the receiving groove (214) is provided; the fixing member (22) is used to confine the optical element (100) in the receiving groove (214).

9. The position adjustment device according to claim 8, characterized in that: The fixing module (2) further comprises a vibration damping member (23); the fixing member (22) is provided with a limiting groove (221) at a position corresponding to the accommodating groove (214); the vibration damping member (23) is installed in the limiting groove (221); and the vibration damping member (23) is used to abut against the optical element (100).

10. The position adjustment device according to claim 8, characterized in that: A positioning groove is provided on a side of the fixing member (22) facing the mounting member (21), wherein the extending direction of the positioning groove is perpendicular to the central axis of the first screw (33), and the positioning portion (215) of the mounting member (21) is adapted to be snap-fitted into the positioning groove.

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