Triangular supporting ring for supporting secondary mirror

Abstract

The utility model discloses a triangular support ring for supporting a secondary mirror, which comprises a secondary mirror triangular support ring, and a support cylinder, a support cylinder gasket, a secondary mirror support ring, an outer light shield, a secondary mirror light shield, a secondary mirror flexible joint and a secondary mirror are assembled on the secondary mirror triangular support ring from top to bottom. The supporting cylinder is installed on the side wall of the secondary mirror supporting ring, and the supporting cylinder gasket is installed between the secondary mirror supporting ring and the supporting cylinder. The secondary mirror light shield is assembled at the other end of the secondary mirror supporting ring, the secondary mirror is assembled in the secondary mirror supporting ring, and the secondary mirror flexible joint is assembled between the secondary mirror supporting ring and the secondary mirror light shield; a mounting hole is formed in the joint of the supporting cylinder and the supporting cylinder gasket, a fastener is assembled in the mounting hole, and the secondary mirror flexible joint and the secondary mirror are connected through a clamping structure; the triangular supporting ring for supporting the secondary mirror is flexible in structural design form, easy to process, low in cost and convenient to install and adjust, and can better adapt to variable secondary mirror structures.

Description

TECHNICAL FIELD

[0001] The utility model relates to a secondary mirror technical field, concretely is a triangular support ring for secondary mirror support. BACKGROUND

[0002] In the field of space cameras in today's world, reflective optical systems are applied more and more widely. The working environment of space cameras is often harsh, the thermal environment changes widely, and space stray light also has a certain influence on the imaging quality of the camera. For the reflective optical system, the relative position relationship of the primary mirror and the secondary mirror structure directly affects the functional application of the camera.

[0003] The same type of product on the market currently has the characteristics that the connection and construction between the structures are completed, but the support structure stability is generally insufficient, the support structure is prone to plastic deformation in experiments, and the stable support cannot be achieved, which affects the stability of the secondary mirror and the overall imaging effect. Therefore, a triangular support ring for secondary mirror support is needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a triangular support ring for secondary mirror support to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a triangular support ring for secondary mirror support, comprising a secondary mirror triangular support ring, the secondary mirror triangular support ring is assembled with a support cylinder, a support cylinder gasket, a secondary mirror support ring, an outer light shield, a secondary mirror light shield, a secondary mirror flexible joint and a secondary mirror;

[0006] The support cylinder is installed on the side wall of the secondary mirror support ring, and the support cylinder gasket is installed between the secondary mirror support ring and the support cylinder.

[0007] The secondary mirror light shield is assembled at the other end of the secondary mirror support ring, the secondary mirror is assembled in the inside of the secondary mirror support ring, and the secondary mirror flexible joint is assembled between the secondary mirror support ring and the secondary mirror light shield.

[0008] The connecting part of the support cylinder and the support cylinder gasket is provided with a mounting hole, the inside of the mounting hole is assembled with a fastener, and the secondary mirror flexible joint and the secondary mirror are connected through a clamping structure.

[0009] Preferably, the fastener comprises a fastening screw and an anti-loosening screw, the outside of the fastening screw is screwed with a fastening nut, the bottom end of the fastening screw is provided with an anti-loosening screw groove, the anti-loosening screw is screwed in the anti-loosening screw groove, the outside of the anti-loosening screw is sleeved with an anti-loosening cylinder, three limiting columns are installed on the outer wall of the anti-loosening cylinder, the three limiting columns are distributed in a triangular shape, and the inner wall of each limiting column is provided with a spiral groove matched with the fastening screw.

[0010] Preferably, the inner wall of the anti-off cylinder is provided with a reverse internal thread, the outer part of the anti-off screw is provided with a reverse external thread at the place where it is attached to the anti-off cylinder, and the reverse internal thread and the reverse external thread are matched, and the end of the anti-off screw is provided with a rotating disc, and the outer wall of the rotating disc is provided with a cross slot.

[0011] Preferably, the outer wall of the fastening nut is provided with an annular rotating groove, and the end of the limiting column is arranged in the annular rotating groove.

[0012] Preferably, the outer upper end of the fastening screw is fixedly provided with a fixing ring, the circumferential surface of the fastening screw is sleeved with an annular pressing piece, a spring and an annular rubber piece, and the lower end edge of the annular pressing piece is fixedly provided with an extrusion block.

[0013] Preferably, the clamping structure comprises a clamping block arranged on the side wall of the secondary mirror flexible joint and a clamping groove arranged on the side wall of the secondary mirror, the clamping block is clamped in the clamping groove, and the clamping block is internally provided with an elastic member.

[0014] Preferably, the elastic member comprises an elastic supporting ring, the inner part of the elastic supporting ring is provided with a filling cavity, and the inner part of the filling cavity is provided with an elastic pad layer.

[0015] Preferably, the elastic member comprises a supporting cylinder, and the two ends of the supporting cylinder are provided with spring rods.

[0016] Preferably, the end of the spring rod is provided with a sticking layer.

[0017] Compared with the prior art, the scheme designs a triangular supporting ring for supporting a secondary mirror, and has the following beneficial effects:

[0018] The structural design form is flexible, easy to process, low in cost and convenient to assemble and adjust;

[0019] Meanwhile, the stability of the structure is improved during design, so that the structure has higher practicality;

[0020] The structure can better adapt to various secondary mirror structures. DETAILED DESCRIPTION

[0021] Figure 1 It is a structural schematic view of the utility model;

[0022] Figure 2 It is a fastener schematic view of the utility model;

[0023] Figure 3 It is an anti-off cylinder schematic view of the utility model;

[0024] Figure 4 It is an anti-off screw schematic view of the utility model;

[0025] Figure 5 This is a schematic diagram of the elastic element in the first embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the elastic element in the second embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the elastic element of this utility model.

[0028] In the diagram: 1. Support cylinder, 2. Support cylinder gasket, 3. Secondary mirror support ring, 4. Outer light shield, 5. Secondary mirror light shield, 6. Secondary mirror flexible joint, 7. Secondary mirror, 8. Fastener, 9. Fastening screw, 10. Fastening nut, 11. Anti-loosening screw groove, 12. Anti-loosening cylinder, 13. Anti-loosening screw, 14. Annular rotating groove, 15. Fixing ring, 16. Extrusion block, 17. Annular pressure plate, 18. Annular rubber sheet, 19. Spring, 20. Anti-loosening rod, 21. Helical tooth, 22. Reverse internal thread, 23. Turntable, 24. Cross groove, 25. Locking block, 26. Locking groove, 27. Elastic element, 28. Filling cavity, 29. Elastic pad, 30. Spring rod, 31. Adhesive layer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1 to 6 The first technical solution provided by this utility model is: a triangular support ring for supporting a secondary mirror, including a secondary mirror triangular support ring, wherein the secondary mirror triangular support ring is equipped with a support cylinder 1, a support cylinder gasket 2, a secondary mirror support ring 3, an outer light shield 4, a secondary mirror light shield 5, a secondary mirror flexible joint 6, and a secondary mirror 7.

[0031] The support cylinder 1 is installed on the side wall of the secondary mirror support ring 3, and the support cylinder gasket 2 is installed between the secondary mirror support ring 3 and the support cylinder 1;

[0032] The secondary mirror light shield 5 is assembled at the other end of the secondary mirror support ring 3, the secondary mirror 7 is assembled inside the secondary mirror support ring 3, and the secondary mirror flexible joint 6 is assembled between the secondary mirror support ring 3 and the secondary mirror light shield 5.

[0033] A mounting hole is provided at the connection between the support cylinder 1 and the support cylinder gasket 2. Fasteners 8 are installed inside the mounting hole. The secondary mirror flexible joint 6 and the secondary mirror 7 are connected by a snap-fit ​​structure.

[0034] In some technical solutions, the inner wall of the anti-escape cylinder 12 is provided with a reverse internal thread 22, the outer part of the anti-escape screw rod 13 is provided with a reverse external thread 20 at the bonding part with the anti-escape cylinder 12, and the reverse internal thread 22 and the reverse external thread 20 are matched.

[0035] In this technical solution, the thread on the outer part of the anti-escape screw rod 13 is divided into two parts, the front part is matched with the internal thread of the anti-escape screw groove 11, and the rear part is matched with the reverse internal thread 22 of the anti-escape cylinder 12, so as to install the anti-escape cylinder 12 on the outer part of the anti-escape screw rod 13.

[0036] In some technical solutions, the end of the anti-escape screw rod 13 is provided with a rotating disc 23, and the outer wall of the rotating disc 23 is provided with a cross groove 24.

[0037] In this technical solution, the rotating disc 23 is convenient for rotating the anti-escape screw rod 13, and the cross groove 24 is convenient for using a screwdriver.

[0038] In some technical solutions, the outer wall of the fastening nut 10 is provided with an annular rotating groove 21, and the end of the limiting column 20 is arranged in the annular rotating groove 21.

[0039] In this technical solution, when the anti-escape screw rod 13 is screwed into the anti-escape screw groove 11, the anti-escape cylinder 12 will rotate, and when the limiting column 20 contacts the fastening nut 10, the limiting column 20 can rotate in the annular rotating groove 21 until contacting the inner wall of the annular rotating groove 21, so as to push the fastening nut 10 and limit the fastening nut 10 in the circumferential direction.

[0040] In some technical solutions, the outer part of the fastening screw rod 9 is fixedly provided with a fixed ring 15 at the upper end, and the circumferential surface of the fastening screw rod 9 is sleeved with an annular pressing piece 17, a spring 19 and an annular rubber piece 18.

[0041] In this technical solution, when the fastening screw rod 9 is rotated, the annular rubber piece 18 slides upward due to the action of the screw hole, and with further rotation, the annular rubber piece 18 contacts the fixed ring 15, the annular rubber piece 18 deforms due to the action of the fixed ring 15, the screw hole is sealed, the spring 19 is located on the upper side of the annular pressing piece 17, the annular pressing piece 17 is pressed downward due to the action of the spring 19, the pressing block 16 is pressed downward due to the action of the annular pressing piece 17, the pressing block 16 further presses the edge of the annular rubber piece 18, so as to improve the sealing effect, the annular pressing piece 17 is located on the upper side of the fixed ring 15, the spring 19 is located on the upper side of the annular pressing piece 17, the annular rubber piece 18 is located on the lower side of the fixed ring 15, and the pressing block 16 is fixedly arranged at the lower end edge of the annular pressing piece 17.

[0042] The clamping structure comprises a clamping block 25 mounted on the side wall of the secondary mirror flexible joint 6 and a clamping groove 26 formed in the side wall of the secondary mirror 7, the clamping block 25 is clamped in the clamping groove 26, the clamping block 25 is internally provided with an elastic member 27, and the secondary mirror flexible joint 6 and the secondary mirror 7 are connected by clamping the clamping block 25 into the clamping groove 26.

[0043] The elastic member 27 comprises an elastic ring, a filling cavity 28 is formed in the inside of the elastic ring, and an elastic pad 29 is mounted in the inside of the filling cavity 28, so that the clamping block is provided with elasticity by the elastic member 27.

[0044] Please refer to Figures 1 to 7 The second technical scheme of the utility model provides a triangular support ring for supporting a secondary mirror, which comprises a secondary mirror triangular support ring, and the secondary mirror triangular support ring is assembled with a support cylinder 1, a support cylinder gasket 2, a secondary mirror support ring 3, an outer light shield 4, a secondary mirror light shield 5, a secondary mirror flexible joint 6 and a secondary mirror 7 from top to bottom.

[0045] The support cylinder 1 is mounted on the side wall of the secondary mirror support ring 3, and the support cylinder gasket 2 is mounted between the secondary mirror support ring 3 and the support cylinder 1.

[0046] The secondary mirror light shield 5 is assembled at the other end of the secondary mirror support ring 3, the secondary mirror 7 is assembled in the inside of the secondary mirror support ring 3, and the secondary mirror flexible joint 6 is assembled between the secondary mirror support ring 3 and the secondary mirror light shield 5.

[0047] An installation hole is formed at the connection position of the support cylinder 1 and the support cylinder gasket 2, a fastener 8 is assembled in the inside of the installation hole, and the secondary mirror flexible joint 6 and the secondary mirror 7 are connected by the clamping structure.

[0048] In some technical schemes, a reverse internal thread 22 is formed in the inner wall of the anti-escape cylinder 12, a reverse external thread 20 is formed at the position where the outer wall of the anti-escape screw rod 13 is attached to the anti-escape cylinder 12, and the reverse internal thread 22 and the reverse external thread 20 are matched.

[0049] In this technical scheme, the thread on the outer wall of the anti-escape screw rod 13 is divided into two parts, the front part is matched with the internal thread of the anti-escape screw groove 11, and the rear part is matched with the reverse internal thread 22 of the anti-escape cylinder 12, so that the anti-escape cylinder 12 is mounted on the outer wall of the anti-escape screw rod 13.

[0050] In some technical schemes, a rotating disc 23 is mounted at the end of the anti-escape screw rod 13, and a cross groove 24 is formed in the outer wall of the rotating disc 23.

[0051] In this technical scheme, the rotating disc 23 is convenient for rotating the anti-escape screw rod 13, and the cross groove 24 is convenient for using a screwdriver.

[0052] In some technical schemes, an annular rotating groove 21 is formed in the outer wall of the fastening nut 10, and the end of the limiting column 20 is arranged in the annular rotating groove 21.

[0053] In the technical scheme, when the anti-escape screw rod 13 is screwed into the anti-escape screw groove 11, the anti-escape cylinder 12 rotates, and when the limiting column 20 contacts the fastening nut 10, the limiting column 20 rotates in the annular rotating groove 21 until the limiting column 20 contacts the inner wall of the annular rotating groove 21, thereby pushing the fastening nut 10 and limiting the fastening nut 10 in the circumferential direction.

[0054] In some technical schemes, the outer upper end of the fastening screw rod 9 is fixedly provided with a fixing ring 15, and the circumferential surface of the fastening screw rod 9 is sleeved with an annular pressing piece 17, a spring 19 and an annular rubber piece 18.

[0055] In the technical scheme, when the fastening screw rod 9 is rotated, the annular rubber piece 18 slides upward due to the screw hole, and as the fastening screw rod 9 is further rotated, the annular rubber piece 18 contacts the fixing ring 15, the annular rubber piece 18 is deformed due to the action of the fixing ring 15, the screw hole is sealed, the spring 19 is located on the upper side of the annular pressing piece 17, the annular pressing piece 17 is pressed downward due to the action of the spring 19, the pressing block 16 is pressed downward due to the action of the annular pressing piece 17, the pressing block 16 further presses the edge of the annular rubber piece 18, thereby improving the sealing effect, the annular pressing piece 17 is located on the upper side of the fixing ring 15, the spring 19 is located on the upper side of the annular pressing piece 17, the annular rubber piece 18 is located on the lower side of the fixing ring 15, and the pressing block 16 is fixedly installed at the lower end edge of the annular pressing piece 17.

[0056] The clamping structure comprises a clamping block 25 installed on the side wall of the secondary mirror flexible joint 6 and a clamping groove 26 formed in the side wall of the secondary mirror 7, the clamping block 25 is clamped in the clamping groove 26, and the clamping block 25 is internally provided with an elastic member 27, and the secondary mirror flexible joint 6 and the secondary mirror 7 are connected by clamping the clamping block 25 into the clamping groove 26.

[0057] The elastic member 27 comprises a supporting cylinder, and spring rods 30 are installed at both ends of the supporting cylinder.

[0058] Ends of the spring rods 30 are provided with adhesive layers 31, and the spring rods 30 are connected with the inside of the clamping block through the adhesive layers 31.

[0059] Other components in the second technical scheme are the same as those in the first technical scheme.

[0060] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0061] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A triangular support ring for secondary mirror support comprising a secondary mirror triangular support ring, characterized by: The secondary mirror triangular support ring is assembled with a support cylinder (1), a support cylinder gasket (2), a secondary mirror support ring (3), an outer light shield (4), a secondary mirror light shield (5), a secondary mirror flexible joint (6) and a secondary mirror (7) from top to bottom; The support cylinder (1) is installed on the side wall of the secondary mirror support ring (3), and the support cylinder gasket (2) is installed between the secondary mirror support ring (3) and the support cylinder (1); The secondary mirror light shield (5) is assembled at the other end of the secondary mirror support ring (3), the secondary mirror (7) is assembled inside the secondary mirror support ring (3), and the secondary mirror flexible joint (6) is assembled between the secondary mirror support ring (3) and the secondary mirror light shield (5); An installation hole is formed at the connection between the support cylinder (1) and the support cylinder gasket (2), a fastener (8) is assembled in the installation hole, and the secondary mirror flexible joint (6) and the secondary mirror (7) are connected through a clamping structure.

2. A triangular support ring for a secondary mirror support according to claim 1, characterized in that: The fastener (8) comprises a fastening screw (9) and an anti-escape screw (13), the outer part of the fastening screw (9) is screwed with a fastening nut (10), the bottom end of the fastening screw (9) is provided with an anti-escape screw groove (11), the anti-escape screw (13) is screwed in the anti-escape screw groove (11), the outer part of the anti-escape screw (13) is sleeved with an anti-escape cylinder (12), the outer wall of the anti-escape cylinder (12) is provided with three limiting columns (20), the three limiting columns (20) are distributed in a triangular shape, and the inner wall of each limiting column (20) is provided with a spiral groove (21) matched with the fastening screw (9).

3. A triangular support ring for a secondary mirror support according to claim 2, wherein: The inner wall of the anti-escape cylinder (12) is provided with an inverse internal thread (22), the outer part of the anti-escape screw (13) is provided with an inverse external thread at the place abutting against the anti-escape cylinder (12), the inverse internal thread (22) and the inverse external thread are matched, the end part of the anti-escape screw (13) is provided with a rotating disc (23), and the outer wall of the rotating disc (23) is provided with a cross groove (24).

4. A triangular support ring for a secondary mirror support according to claim 3, wherein: The outer wall of the fastening nut (10) is provided with an annular rotating groove (14), and the end part of the limiting column (20) is arranged in the annular rotating groove (14).

5. A triangular support ring for a secondary mirror support according to claim 2, wherein: The outer part of the fastening screw (9) is fixedly provided with a fixed ring (15) at the upper end, the circumferential surface of the fastening screw (9) is sleeved with an annular pressing piece (17), a spring (19) and an annular rubber piece (18), and the lower end edge of the annular pressing piece (17) is fixedly provided with an extrusion block (16).

6. A triangular support ring for a secondary mirror support according to claim 1, wherein: The clamping structure comprises a clamping block (25) installed on the side wall of the secondary mirror flexible joint (6) and a clamping groove (26) formed on the side wall of the secondary mirror (7), the clamping block (25) is clamped in the clamping groove (26), and the clamping block (25) is internally provided with an elastic member (27).

7. A triangular support ring for a secondary mirror support according to claim 6, wherein: The elastic member (27) comprises an elastic supporting ring, the inner part of the elastic supporting ring is provided with a filling cavity (28), and the inner part of the filling cavity (28) is provided with an elastic pad layer (29).

8. A triangular support ring for a secondary mirror support according to claim 7, wherein: The elastic member (27) comprises a support cylinder, and the two end parts of the support cylinder are provided with spring rods (30).

9. A triangular support ring for a secondary mirror support according to claim 8, wherein: The end part of the spring rod (30) is provided with a sticking layer (31).

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