Optical path adjustment structure and projection equipment

Abstract

The present invention provides an optical path adjustment structure and a projection device, wherein an optical path adjustment structure comprises: a base, an adjustment frame, a fixing member and an adjustment member, wherein the adjustment frame is arranged in the receiving groove for mounting an optical element, and a blocking portion is arranged on a side wall at one end of the adjustment frame; the fixing member is arranged at a notch position of the base close to the receiving groove, and the fixing member comprises a first elastic sheet opposite to the first fitting surface and a second elastic sheet opposite to the second fitting surface, and two second elastic portions are arranged on the second elastic sheet; a supporting portion and a first elastic portion are arranged on the first elastic sheet, and the supporting portion is arranged to contact the blocking portion; the first elastic portion and the second elastic portion are respectively in contact with the adjustment frame. The two adjustment members are respectively in contact with the side walls of the adjustment frame, so that when the two adjustment members are adjusted, the first elastic portion or the second elastic portion undergoes elastic deformation to change the angle of the adjustment frame.

Description

Technical Field

[0001] The present invention relates to the technical field of optical equipment, and in particular to an optical path adjustment structure and a projection device. Background Art

[0002] During the use of the projection equipment, the optical element that collects light in the projection machine is fixed on the base to produce a display device with a large screen size. The imaging principle of the projector is to convert the illumination beam generated by the light source module into an image beam through the light valve, and then project the image beam through the lens onto the screen or wall to form an image. The optical element that collects light is fixed on the base and the angle of the light collecting element is adjusted so that the light collecting element can collect light better.

[0003] In the prior art, the light-collecting optical element is adjusted by an adjustment mechanism. The adjustment mechanism is complicated and is generally adjusted from four directions by at least four screws, making the adjustment process very troublesome. Summary of the invention

[0004] The present invention solves the technical problem that the existing optical element for collecting light has a complicated adjustment structure and a complicated adjustment method, and provides an optical path adjustment structure and a projection device.

[0005] The technical solution provided by the present invention is as follows:

[0006] An optical path adjustment structure, used for adjusting an optical element, comprising:

[0007] Pedestal;

[0008] An adjustment frame, arranged on the base, wherein the optical element is installed in the adjustment frame;

[0009] A fixing member adapted to the adjustment frame, the fixing member is fixed on the base, the space formed by the fixing member and the base is used to place the adjustment frame, the fixing member is provided with two first elastic parts and a second elastic part, the two elastic parts abut against adjacent outer walls of the adjustment frame, and are used to fix the adjustment frame;

[0010] A first adjusting member and a second adjusting member, wherein the first adjusting member and the second adjusting member are screwed to the base and contact the adjusting frame, and the first adjusting member is arranged opposite to the first elastic part, and the second adjusting member is arranged opposite to the second elastic part.

[0011] In the present technical solution, a first adjusting member and a second adjusting member are provided, and the first adjusting member and the second adjusting member are respectively opposite to the side walls adjacent to the adjusting frame, the first adjusting member after installation is arranged opposite to the first elastic part, and the second adjusting member after installation is arranged opposite to the position of the second elastic part, so that when the first adjusting member is adjusted, the first adjusting member resists the elastic force of the first elastic part to rotate the adjusting frame, and when the second adjusting member is adjusted, the second adjusting member resists the elastic force of the second elastic part to rotate the adjusting frame; in actual adjustment, it is very convenient, and only the first adjusting member or the second adjusting member needs to be adjusted. The existence of the first elastic part and the second elastic part can not only fix the adjusting frame, but also cooperate with the corresponding first adjusting member or the second adjusting member for adjustment, so that during the adjustment process, the position of the adjusting frame will not deflect widely, thereby ensuring the accuracy of the adjustment.

[0012] Preferably, a receiving groove is provided on the base, and a blocking portion is provided on a side wall at one end of the adjustment frame;

[0013] The fixing member comprises a first elastic sheet and a second elastic sheet connected to each other, wherein the first elastic sheet and the second elastic sheet are respectively arranged opposite to two adjacent side walls of the adjustment frame away from the receiving groove;

[0014] The second elastic part is arranged on the second elastic sheet, the second elastic sheet is also provided with a butting part, and the second elastic part and the butting part are arranged opposite to each other, and the butting part is in contact with the blocking part; there are two first elastic parts, the two first elastic parts are arranged on the first elastic sheet, and the two first elastic parts are arranged opposite to each other; the first elastic part and the second elastic part are respectively in contact with the side wall of the adjustment frame, and the first elastic sheet and the second elastic sheet have a distance from the side wall of the adjustment frame;

[0015] The first adjusting member and the second adjusting member respectively pass through the accommodating groove, the first adjusting member abuts against the side wall of the adjusting frame and is arranged opposite to the first elastic sheet, and the second adjusting member abuts against the side wall of the adjusting frame and is arranged opposite to the second elastic sheet.

[0016] In the present technical solution, a fixing member is provided, and a first elastic portion, a second elastic portion and abutting portion are provided on the fixing member. When the adjustment frame is fixed in the receiving groove by the fixing member, the first elastic portion and the second elastic portion respectively abut against the adjustment frame, and the abutting portion abuts against the blocking portion, so that during adjustment, the first elastic portion or the second elastic portion is correspondingly deformed to change the position of the adjustment frame, and the deformed first elastic portion and the second elastic portion have a tendency to recover, so that the deformed first elastic portion and the second elastic portion can better fix the adjustment frame. In order to achieve a better adjustment effect, the blocking portion plays a blocking role. During specific adjustment, when adjusting the first adjustment member opposite to the first elastic portion, the first elastic portion is deformed to adjust the angle of the adjustment frame, and the blocking portion abuts against the abutting portion, so that when the first spring sheet and the second spring sheet undergo stress changes, the first spring sheet and the second spring sheet will not be damaged due to excessive stress. Similarly, when adjusting the second adjustment member opposite to the second elastic portion, the second elastic portion is deformed to adjust the angle of the adjustment frame. The first adjustment member and the second adjustment member are adjusted to adjust the angle of the adjustment frame in the receiving groove.

[0017] Preferably, the first elastic portion is formed by the first elastic sheet extending outwards and bending along both sides of the length direction of the adjustment frame;

[0018] The abutting portion is formed by extending from one side of the second elastic sheet close to the blocking portion;

[0019] The second elastic portion is formed by bending and extending a side of the second elastic sheet away from the blocking portion.

[0020] In the present technical solution, the second elastic portion and the first elastic portion are respectively formed by extending the second elastic sheet and the first elastic sheet. The first elastic portion and the second elastic portion are used to fix the adjustment frame and can also enable the adjustment frame to undergo corresponding deformation when the adjustment member is rotated for adjustment, so that the adjustment frame can undergo corresponding deformation when the adjustment member is rotated, thereby enabling the adjustment frame to undergo a certain angle change in the accommodating groove.

[0021] Preferably, the fixing member further comprises: the blocking portion is arranged at an angle to the outer wall of the adjusting frame.

[0022] In the present technical solution, the blocking portion and the adjustment frame are arranged at a certain angle so that the abutting portion on the installed fixing part can better abut against the blocking portion, so that when the adjusting part is rotated, the adjustment can be better performed and the first spring sheet and the second spring sheet will not be damaged due to excessive stress.

[0023] Preferably, the two first elastic parts are distributed on both sides of the first elastic sheet along the length direction of the adjustment frame, and the positions of the two first elastic parts are symmetrical;

[0024] and / or;

[0025] The second elastic portion is symmetrical to the abutting portion.

[0026] In the present technical solution, by setting two first elastic parts, when the first adjusting member relative to the first elastic part is rotated, the adjusting frame can be well deflected without a large angle change, and at the same time, when the second adjusting member relative to the second elastic part is rotated, the second elastic part will not have too much angle change, and when the two adjusting members are adjusted, the stress generated by the first spring sheet or the second spring sheet will be transmitted to the abutting part, so that while adjusting the angle, the fixing part can also be protected, the two first elastic parts are well abutted against the adjusting frame, and the abutting part abuts against the blocking part, so that the adjusting frame has a force point, avoiding excessive angle adjustment of the conditional frame when adjusting.

[0027] Preferably, the fixing member further comprises:

[0028] The first elastic sheet extends in a direction away from the second elastic sheet to form a bent first mounting portion, and the first elastic sheet and the first mounting portion are arranged at an angle;

[0029] The second elastic sheet extends in a direction away from the first elastic sheet to form a bent second mounting portion, and the second elastic sheet and the second mounting portion are arranged at an angle;

[0030] The first mounting portion and the second mounting portion are respectively mounted on the accommodating groove.

[0031] In the present technical solution, a first mounting portion and a second mounting portion are provided, and the first mounting portion and the second mounting portion are provided at a certain angle. The first mounting portion and the second mounting portion are fixed at a notch position of the base close to the accommodating groove. On the one hand, the adjustment frame can be fixed, and on the other hand, when the adjustment member is rotated, the first mounting portion and the second mounting portion are also subjected to a twisting force, so that the adjustment frame can be better tightened after adjustment, and the adjustment frame will not change its position therein due to the adjustment of the angle.

[0032] Preferably, positioning holes are respectively formed on the first mounting portion and the second mounting portion, and positioning pieces matching the positioning holes on the first mounting portion and the second mounting portion are provided near the slot of the accommodating slot.

[0033] In the present technical solution, by opening positioning holes on the first mounting part and the second mounting part, and providing positioning members on the notches of the accommodating grooves, on the one hand, positioning can be quickly performed during installation, and on the other hand, the positioning members serve as limiters to achieve a better installation effect, so that when adjusting the adjusting members, the first spring sheet and the second spring sheet will not be greatly deformed, resulting in a large angle adjustment.

[0034] Preferably, a through hole is formed on the side wall of the adjustment frame, and a clamping portion is formed on the edge of the through hole. The clamping portion extends into the adjustment frame and fits on the side wall of the optical element to clamp the optical element in the adjustment frame.

[0035] In the technical solution, by providing a clamping portion on the adjusting frame, the clamping portion abuts against the side wall of the light-collecting optical element in the adjusting frame during installation, thereby better fixing the light-collecting optical element.

[0036] Preferably, the optical path adjustment structure further comprises a shielding plate, which is fixed on the base and is used for shielding the light receiving element in the adjustment frame.

[0037] Preferably, the mask comprises a vertical portion, a fixed portion and a light shielding portion, and the fixed portion and the light shielding portion are respectively arranged on both sides of the fixed portion;

[0038] The vertical portion and the fixing portion are arranged at an angle, and a placement hole is provided at the intersection of the vertical portion and the fixing portion for placing the blocking portion, and a second fixing hole is provided on the fixing portion for fixing on the base;

[0039] The shading portion is vertically arranged to the fixing portion, and two adjacent sides of the shading portion are in contact with the outer wall of the adjusting frame.

[0040] In the present technical solution, a shield is provided, and when provided, the shield is matched with the adjustment frame so that after installation, light can be shielded to block part of the scattered light, so as to avoid affecting the optical element that collects light.

[0041] A projection device comprises any one of the above-mentioned optical path adjustment structures.

[0042] Compared with the prior art, the optical path adjustment structure and projection device provided by the present invention have the following beneficial effects:

[0043] The present invention provides a first elastic portion, a second elastic portion and a supporting portion, so that when the first adjusting member and the second adjusting member are adjusted, the first elastic portion undergoes elastic deformation to change the angle of the adjusting frame, or when the adjusting member opposite to the second elastic portion is adjusted, the second elastic portion undergoes elastic deformation to change the angle of the adjusting frame in the accommodating groove. When the first elastic portion and the second elastic portion undergo elastic deformation, the stress on the first spring sheet and the second spring sheet is transmitted to the supporting portion and to the first mounting portion and the second mounting portion, so that the first spring sheet and the second spring sheet will not be deformed, so that there will be no large-angle adjustment but small-angle adjustment during the adjustment process, and the device is simple and the adjustment process is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The preferred implementation scheme will be described below in a clear and understandable manner in conjunction with the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of an optical path adjustment structure and a projection device.

[0045] Figure 1 It is a schematic diagram of the top view of the structure of the present invention;

[0046] Figure 2 It is a schematic diagram of the unassembled structure of the present invention;

[0047] Figure 3 is a schematic diagram of an unassembled structure of the present invention viewed from above;

[0048] Figure 4 It is a structural schematic diagram of another viewing angle of the present invention;

[0049] Figure 5 yes Figure 4 AA section diagram;

[0050] Figure 6 yes Figure 4 BB cross-section diagram;

[0051] Figure 7 yes Figure 4 Schematic diagram of CC cross section;

[0052] Figure 8 It is a schematic diagram of the assembly structure of part of the structure of the present invention;

[0053] Fig. 9 yes Figure 8 Another perspective structural diagram of;

[0054] Fig.10 It is a schematic structural diagram of the fixing member of the present invention;

[0055] Fig.11 It is a structural schematic diagram of the mask of the present invention;

[0056] Fig.12 It is a structural diagram of the adjustment frame;

[0057] Fig.13 yes Fig.12 Another perspective structural diagram of .

[0058] Description of Figure Numbers:

[0059] 10. base; 11. receiving groove; 12. positioning member; 13. first mounting hole; 14. second mounting hole; 15. first fitting surface; 16. second fitting surface; 17. first adjustment hole; 18. second adjustment hole;

[0060] 20. Adjustment frame; 21. First pressing surface; 22. Second pressing surface; 23. First side wall; 24. Second side wall; 25. Blocking part; 26. Through hole;

[0061] 30. fixing member; 31. first spring piece; 32. second spring piece; 33. first mounting portion; 34. second mounting portion; 35. first elastic portion; 36. abutting portion; 37. second elastic portion; 38. first fixing hole; 39. positioning hole;

[0062] 40. mask; 41. vertical portion; 42. fixing portion; 43. second fixing hole; 44. light shielding portion; 45. placement hole;

[0063] 50. Optical components;

[0064] 60. A first adjusting member;

[0065] 70. Second adjusting member. DETAILED DESCRIPTION

[0066] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0067] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0068] According to an embodiment provided by the present invention, Figure 1-9 As shown, an optical path adjustment structure includes: a base 10, an adjustment frame 20, a fixing member 30, and a first adjustment member 60 and a second adjustment member 70. The base 10 is provided with a receiving groove 11; the receiving groove 11 has a first fitting surface 15 and a second fitting surface 16 adjacent to each other, the base 10 is provided with a first adjustment hole 17 penetrating the first fitting surface 15, and the side wall of the base 10 is provided with a second adjustment hole 18 penetrating the second fitting surface 16;

[0069] like Figure 12-13As shown, the adjustment frame 20 is arranged in the receiving groove 11 for mounting the optical element 50, and a blocking portion 25 is arranged on a side wall at one end of the adjustment frame 20; the adjustment frame 20 is placed in the receiving groove 11, and a receiving cavity is arranged in the adjustment frame 20, and the receiving cavity is used to place the optical element 50, and the adjacent two side walls of the adjustment frame 20 located in the receiving groove 11 correspond to the first bonding surface 15 and the second bonding surface 16 respectively, that is, the first pressing surface 21 and the second pressing surface 22 are respectively opposite to the first bonding surface 15 and the second bonding surface 16 The side wall of the adjustment frame 20 at one end in the light-incoming direction is provided with a blocking portion 25. In a specific implementation, the adjustment frame 20 has a first side wall 23 that is opposite to the first fitting surface 15, and a second side wall 24 that is opposite to the second fitting surface 16. Through holes 26 are provided on the first side wall 23 and the second side wall 24, and a clamping portion extending inward is provided at the edge of the through hole 26. The clamping portion extends into the adjustment frame 20 and fits on the side wall of the optical element 50 to clamp the optical element 50 in the adjustment frame 20. The blocking portion 25 is integrally formed with the adjustment frame 20, and the blocking portion 25 is formed by extending from one end of the first side wall 23 of the adjustment frame 20 close to the light-incoming direction, and the blocking portion 25 is arranged at an angle with the outer wall of the adjustment frame 20;

[0070] The fixing member 30 is used to fix the adjustment frame 20. The fixing member 30 includes a first elastic sheet 31 and a second elastic sheet 32 ​​connected to each other. The first elastic sheet 31 and the second elastic sheet 32 ​​are respectively arranged opposite to the adjacent two side walls of the adjustment frame 20 away from the accommodating groove 11. The first elastic sheet 31 is provided with a supporting portion 36 and a first elastic portion 35. The supporting portion 36 is in contact with the blocking portion 25. The second elastic sheet 32 ​​is provided with two second elastic portions 37. The first elastic portion 35 and the second elastic portion 37 are respectively in contact with the side walls of the adjustment frame 20, and a spacing is provided between the first elastic sheet 31 and the second elastic sheet 32 ​​and the side walls of the adjustment frame 20.

[0071] In a specific implementation, the fixing member 30 is installed at the notch position of the base 10 close to the accommodating groove 11, the first fitting surface 15 is opposite to the first elastic sheet 31, the second fitting surface 16 is opposite to the second elastic sheet 32, and the first elastic sheet 31 is provided with two first elastic parts 35 on both sides along the length direction of the adjustment frame 20; the second elastic sheet is provided with abutting parts 36 and second elastic parts 37 on both sides along the length direction of the adjustment frame 20, and the abutting parts 36 are arranged to abut against the blocking parts 25; the first elastic parts 35 and the second elastic parts 37 are respectively in abutment with the adjustment frame 20;

[0072] The first adjusting member 60 and the second adjusting member 70 respectively penetrate the accommodating groove 11 , the first adjusting member 60 abuts against the side wall of the adjusting frame 20 and is arranged opposite to the first elastic sheet 31 , and the second adjusting member 70 abuts against the side wall of the adjusting frame 20 and is arranged opposite to the second elastic sheet 32 ​​.

[0073] During specific implementation, the first adjusting member 60 passes through the first adjusting hole 17, the second adjusting member 70 passes through the second adjusting hole 18, and the first adjusting member 60 and the second adjusting member 70 abut against the side wall of the adjusting frame 20. During specific use, the first adjusting member 60 abuts against the first pressing surface 21, and the second adjusting member 70 abuts against the second pressing surface 22. In this embodiment, the specific shapes of the first elastic portion 35 and the second elastic portion 37 and the specific shape of the abutting portion 36 are not limited. In this embodiment, it is only necessary to set the first elastic portion 35 and the second elastic portion 37 to abut against the outer wall of the adjusting frame 20, so that when adjusting, the first elastic portion 35 and the second elastic portion 37 can undergo corresponding elastic deformation, so that the adjusting frame 20 can be offset by a corresponding angle, thereby changing the direction of the optical path.

[0074] In another embodiment of the present invention, Figure 9-10 As shown, the first elastic part 35 is formed by the first elastic sheet 31 extending outwards and bending on both sides along the length direction of the adjustment frame 20; the abutting part 36 is formed by the second elastic sheet extending from one side close to the blocking part 25; and the second elastic part 37 is formed by the second elastic sheet bending and extending from one side away from the blocking part 25. Specifically, the two first elastic parts 35 are distributed on both sides of the first elastic sheet 31 along the length direction of the adjustment frame 20, and the positions of the two first elastic parts 35 are symmetrical; the positions of the second elastic part 37 and the abutting part 36 are symmetrical. In specific implementation, the positions of the two first elastic parts 35 are symmetrical, and the positions of the second elastic part 37 and the abutting part 36 are symmetrical, so as to ensure that the force conditions on both sides of the first elastic sheet 31 and the second elastic sheet 32 ​​are consistent when adjusting, and the two will not be deformed to a large extent due to uneven force, thereby reducing the sensitivity of the adjustment angle and achieving a better adjustment effect.

[0075] In another embodiment of the present invention, the fixing member 30 also includes: a first spring piece 31 extends a bent first mounting portion 33 along a direction away from the second spring piece 32, and the first spring piece 31 and the first mounting portion 33 are arranged at an angle; the second spring piece 32 extends a bent second mounting portion 34 along a direction away from the first spring piece 31, and the second spring piece 32 and the second mounting portion 34 are arranged at an angle; the first mounting portion 33 and the second mounting portion 34 are respectively used to be installed on the accommodating groove 11. Specifically, positioning holes 39 are respectively provided on the first mounting portion 33 and the second mounting portion 34, and a positioning piece 12 matching the positioning holes 39 on the first mounting portion 33 and the second mounting portion 34 is provided at a notch position on the base 10 near the receiving groove 11. In a specific implementation, a first mounting hole 13 corresponding to the first mounting portion 33 and the second mounting portion 34 is provided at a notch position on the base 10 near the receiving groove 11. In a specific installation, first fixing holes 38 are respectively provided on the first mounting portion 33 and the second mounting portion 34, and the first fixing holes 38 correspond to the position of the first mounting hole 13 on the notch of the receiving groove 11, so that when fixing the fixing member 30, the first mounting portion 33 and the second mounting portion 34 of the fixing member 30 can be placed on the notch by screws, so that the positioning holes 39 on the first mounting portion 33 and the second mounting portion 34 correspond to the positioning piece 12 on the notch, and then the first mounting portion 33 and the second mounting portion 34 are fixed to the notch by screws.

[0076] In another embodiment of the present invention, Fig.11 As shown, the optical path adjustment structure further includes a shielding plate 40 , which is fixed on the base 10 and is used for shielding the light receiving element in the adjustment frame 20 .

[0077] The shielding piece 40 includes a vertical portion 41, a fixed portion 42 and a shading portion 44, the fixed portion 42 and the shading portion 44 are respectively arranged on both sides of the fixed portion 42, the vertical portion 41 and the fixed portion 42 are arranged at an angle, and a placement hole 45 is opened at the intersection of the vertical portion 41 and the fixed portion 42 for placing the blocking portion 25, and a second fixing hole 43 is opened on the fixed portion 42 for fixing on the base 10; the shading portion 44 is arranged on a side of the fixed portion 42 away from the vertical portion 41, and the shading portion 44 and the fixed portion 42 are vertically arranged, and the adjacent sides of the shading portion 44 are in conflict with the outer wall of the adjustment frame 20. In a specific implementation, a second mounting hole 14 is opened on the notch of the accommodating groove 11, corresponding to the position of the second fixing hole 43. During installation, the shielding piece 40 can be fixed to the base 10 by screws.

[0078] A projection device comprises any one of the above-mentioned optical path adjustment structures.

[0079] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. An optical path adjustment structure for adjusting an optical element, characterized in that: include: Pedestal; An adjustment frame, arranged on the base, wherein the optical element is installed in the adjustment frame; A fixing member adapted to the adjustment frame, the fixing member is fixed on the base, the space formed by the fixing member and the base is used to place the adjustment frame, the fixing member is provided with two first elastic parts and one second elastic part, the first elastic part and the second elastic part abut against adjacent outer walls of the adjustment frame, so as to fix the adjustment frame; A first adjusting member and a second adjusting member, wherein the first adjusting member and the second adjusting member are screwed to the base and in contact with the adjusting frame, and the first adjusting member is disposed opposite to the first elastic portion, and the second adjusting member is disposed opposite to the second elastic portion; The base is provided with a receiving groove, and a blocking portion is provided on a side wall at one end of the adjusting frame, and the blocking portion is integrally formed with the adjusting frame; The fixing member includes a first elastic sheet and a second elastic sheet connected to each other, and the first elastic sheet and the second elastic sheet are respectively arranged opposite to two adjacent side walls of the adjustment frame away from the receiving groove; The second elastic part is arranged on the second elastic sheet, the second elastic sheet is also provided with a butting part, and the second elastic part and the butting part are arranged opposite to each other, and the butting part abuts against the blocking part; two first elastic parts are arranged on the first elastic sheet, and the two first elastic parts are arranged opposite to each other; the first elastic part and the second elastic part abut against the side wall of the adjustment frame respectively, and the first elastic sheet and the second elastic sheet have a distance from the side wall of the adjustment frame; The first adjusting member and the second adjusting member respectively pass through the accommodating groove, the first adjusting member abuts against the side wall of the adjusting frame and is arranged opposite to the first elastic sheet, and the second adjusting member abuts against the side wall of the adjusting frame and is arranged opposite to the second elastic sheet.

2. The optical path adjustment structure according to claim 1, characterized in that: The first elastic portion is formed by the first elastic sheet extending outwards and bending along both sides of the length direction of the adjustment frame; The abutting portion is formed by extending from one side of the second elastic sheet close to the blocking portion; The second elastic portion is formed by bending and extending a side of the second elastic sheet away from the blocking portion.

3. The optical path adjustment structure according to claim 1, characterized in that: The blocking portion is arranged at an angle to the outer wall of the adjusting frame.

4. The optical path adjustment structure according to claim 1, characterized in that: The two first elastic parts are distributed on both sides of the first elastic sheet along the length direction of the adjustment frame, and the positions of the two first elastic parts are symmetrical; and / or; The second elastic portion is symmetrical to the abutting portion.

5. An optical path adjustment structure according to any one of claims 1 to 4, characterized in that: The fixing member also includes: The first elastic sheet extends in a direction away from the second elastic sheet to form a bent first mounting portion, and the first elastic sheet and the first mounting portion are arranged at an angle; The second elastic sheet extends in a direction away from the first elastic sheet to form a bent second mounting portion, and the second elastic sheet and the second mounting portion are arranged at an angle; The first mounting portion and the second mounting portion are respectively mounted on the accommodating groove.

6. The optical path adjustment structure according to claim 5, characterized in that: Positioning holes are respectively formed on the first mounting portion and the second mounting portion, and positioning pieces matching the positioning holes on the first mounting portion and the second mounting portion are provided at the notch position close to the accommodating groove on the base.

7. An optical path adjustment structure according to any one of claims 1 to 4, characterized in that: A through hole is provided on the side wall of the adjustment frame, and a clamping portion is provided on the edge of the through hole. The clamping portion extends into the adjustment frame and fits on the side wall of the optical element to clamp the optical element in the adjustment frame.

8. An optical path adjustment structure according to any one of claims 1 to 4, characterized in that: The optical path adjustment structure further includes a shielding plate, which is fixed on the base and is used for shielding the light receiving element in the adjustment frame.

9. The optical path adjustment structure according to claim 8, characterized in that: The shielding sheet comprises a vertical portion, a fixed portion and a light shielding portion, wherein the vertical portion and the light shielding portion are respectively arranged on two sides of the fixed portion; The vertical portion and the fixing portion are arranged at an angle, and a placement hole is provided at the intersection of the vertical portion and the fixing portion for placing the blocking portion, and a second fixing hole is provided on the fixing portion for fixing on the base; The shading portion is vertically arranged to the fixing portion, and two adjacent sides of the shading portion are in contact with the outer wall of the adjusting frame.

10. A projection device, characterized in that: It comprises an optical path adjustment structure as described in any one of claims 1-9.

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