Triangular supporting ring for supporting secondary mirror

Abstract

The invention discloses 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 provided 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 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 invention relates to the technical field of secondary mirrors, and in particular to a triangular support ring used for supporting a secondary mirror. Background Art

[0002] In the field of space cameras in the world today, reflective optical systems are increasingly used. However, the working environment of space cameras is often harsh, with a wide range of thermal environment changes, and space stray light will also have a certain impact on the camera's imaging quality. For reflective optical systems, the relative position relationship of the primary and secondary mirror structures directly affects the functional application of the camera; The characteristics of similar products on the market are that they have to complete the connection and construction between structures. However, the supporting structure is generally not stable enough. The supporting structure is prone to plastic deformation during the experiment and cannot achieve stable support, which affects the stability of the secondary mirror and thus affects the overall imaging effect. Therefore, a triangular support ring for supporting the secondary mirror is needed to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a triangular support ring for supporting a secondary mirror, so as to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: a triangular support ring for supporting a secondary mirror, comprising a triangular support ring for a secondary mirror, wherein the triangular support ring for the secondary mirror is connected and assembled with a support tube, a support tube gasket, a secondary mirror support ring, an outer light shield, a secondary mirror light shield, a secondary mirror flexible joint and a secondary mirror; The support tube is installed on the side wall of the secondary mirror support ring, and the support tube gasket is installed between the secondary mirror support ring and the support tube; The secondary mirror shade is mounted on the other end of the secondary mirror support ring, the secondary mirror is mounted inside the secondary mirror support ring, and the secondary mirror flexible section is mounted between the secondary mirror support ring and the secondary mirror shade; A mounting hole is provided at the connection between the support tube and the support tube gasket, a fastener is installed inside the mounting hole, and the secondary mirror flexible joint and the secondary mirror are connected via a clamping structure.

[0005] Preferably, the fastener includes a fastening screw and an anti-slipping screw, the outside of the fastening screw is threaded with a fastening nut, the bottom end of the fastening screw is provided with an anti-slipping screw groove, the anti-slipping screw is threaded in the anti-slipping screw groove, the outside of the anti-slipping screw is sleeved with an anti-slipping cylinder, and the outer wall of the anti-slipping cylinder is installed with three limiting columns, the three limiting columns are distributed in a triangle, and the inner wall of each limiting column is provided with a spiral groove matching the fastening screw.

[0006] Preferably, the inner wall of the anti-slip cylinder is provided with a reverse internal thread, the outer part of the anti-slip screw is provided with a reverse external thread where it fits with the anti-slip cylinder, and the reverse internal thread and the reverse external thread cooperate with each other, a turntable is installed at the end of the anti-slip screw, and a cross groove is provided on the outer wall of the turntable.

[0007] Preferably, an annular rotation groove is formed on the outer wall of the fastening nut, and the end of the limiting column is arranged in the annular rotation groove.

[0008] Preferably, a fixing ring is fixedly mounted on the outer upper end of the fastening screw, an annular pressing plate, a spring and an annular rubber sheet are mounted on the circumferential surface of the fastening screw, and an extrusion block is fixedly mounted on the lower end edge of the annular pressing plate.

[0009] Preferably, the clamping structure comprises a clamping block installed on the side wall of the secondary mirror flexible joint and a clamping slot provided on the side wall of the secondary mirror, the clamping block is clamped in the clamping slot, and an elastic member is installed inside the clamping block.

[0010] Preferably, the elastic member comprises an elastic bearing ring, a filling cavity is provided inside the elastic bearing ring, and an elastic cushion layer is installed inside the filling cavity.

[0011] Preferably, the elastic member comprises a support tube, and spring rods are installed at both ends of the support tube.

[0012] Preferably, an adhesive layer is installed on the end of the spring rod.

[0013] Compared with the prior art, this solution designs a triangular support ring for supporting the secondary mirror, which has the following beneficial effects: The structural design is flexible, easy to process, low cost and convenient to assemble and adjust; At the same time, the stability of the structure is improved during the design, making the structure more practical; It can better adapt to the variable secondary mirror structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a schematic diagram of a fastener of the present invention; Figure 3 It is a schematic diagram of the anti-dropping tube of the present invention; Figure 4 It is a schematic diagram of the anti-slip screw of the present invention; Figure 5 This is a schematic diagram of an elastic member according to a first embodiment of the present invention; Figure 6 It is a schematic diagram of an elastic member according to a second embodiment of the present invention; Figure 7 It is a schematic diagram of the elastic member of the present invention.

[0015] In the figure: 1 support tube, 2 support tube 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-slip screw groove, 12 anti-slip tube, 13 anti-slip screw, 14 annular rotating groove, 15 fixing ring, 16 extrusion block, 18 annular rubber sheet, 19 spring, 20 anti-slip rod, 21 spiral teeth, 22 reverse internal thread, 23 turntable, 24 cross groove, 25 clamping block, 26 clamping groove, 27 elastic member, 28 filling cavity, 29 elastic cushion layer, 30 spring rod, 31 adhesive layer. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figures 1 to 6 , which is the first technical solution provided by the present invention: a triangular support ring for supporting a secondary mirror, comprising a triangular support ring for a secondary mirror, wherein the triangular support ring for the secondary mirror is connected and assembled with a support tube 1, a support tube gasket 2, a secondary mirror support ring 3, an outer light shielding cover 4, a secondary mirror light shielding cover 5, a secondary mirror flexible joint 6 and a secondary mirror 7; The support tube 1 is installed on the side wall of the secondary mirror support ring 3, and the support tube gasket 2 is installed between the secondary mirror support ring 2 and the support tube 1; The secondary mirror shade 5 is mounted on the other end of the secondary mirror support ring 3, the secondary mirror 7 is mounted inside the secondary mirror support ring 3, and the secondary mirror flexible section 6 is mounted between the secondary mirror support ring 3 and the secondary mirror shade 4; A mounting hole is provided at the connection between the support tube 1 and the support tube gasket 2, and a fastener 8 is installed inside the mounting hole. The secondary mirror flexible section 6 and the secondary mirror 7 are connected via a clamping structure.

[0018] In some technical solutions, the inner wall of the anti-slip cylinder 12 is provided with a reverse internal thread 22, and the outer part of the anti-slip screw 13 and the anti-slip cylinder 12 are provided with a reverse external thread 20, and the reverse internal thread 22 and the reverse external thread 20 match each other.

[0019] In this technical solution, the external thread of the anti-slip screw 13 is divided into two parts, the front part cooperates with the internal thread of the anti-slip screw groove 11, and the rear part cooperates with the reverse internal thread 22 of the anti-slip cylinder 12, thereby installing the anti-slip cylinder 12 on the outside of the anti-slip screw 13.

[0020] In some technical solutions, a turntable 23 is installed at the end of the anti-slip screw 13 , and a cross groove 24 is formed on the outer wall of the turntable 23 .

[0021] In this technical solution, the anti-slip screw 13 is easily rotated by the turntable 23, and the cross groove 24 is provided to facilitate operation with a screwdriver.

[0022] In some technical solutions, an annular rotation groove 21 is formed on the outer wall of the fastening nut 10 , and an end of the limiting column 20 is arranged in the annular rotation groove 21 .

[0023] In this technical solution, when the anti-slip screw 13 is screwed into the anti-slip groove 11, the anti-slip cylinder 12 will rotate accordingly, and when the limiting column 20 contacts the fastening nut 10, it can rotate in the annular groove 21 until it contacts the inner wall of the annular groove 21, thereby supporting the fastening nut 10 and performing circumferential limiting.

[0024] In some technical solutions, a fixing ring 15 is fixedly installed on the outer upper end of the fastening screw 9 , and an annular pressing plate 14 , a spring 19 and an annular rubber sheet 18 are mounted on the circumferential surface of the fastening screw 9 .

[0025] In this technical solution, when the fastening screw 9 is rotated, the annular rubber sheet 18 slides upward due to the action of the screw hole. With further twisting, the annular rubber sheet 18 contacts the fixing ring 15. The annular rubber sheet 18 is deformed due to the action of the fixing ring 15 to seal the screw hole. The spring 19 is located on the upper side of the annular pressing sheet 14, so that the annular pressing sheet 14 is squeezed downward due to the action of the spring 19. The extrusion block 16 is squeezed downward due to the action of the annular pressing sheet 14, so that the extrusion block 16 further squeezes the edge of the annular rubber sheet 18, thereby improving the sealing effect. The annular pressing sheet 14 is located on the upper side of the fixing ring 15, the spring 19 is located on the upper side of the annular pressing sheet 14, the annular rubber sheet 18 is located on the lower side of the fixing ring 15, and the extrusion block 16 is fixedly installed at the lower end edge of the annular pressing sheet 14.

[0026] The clamping structure includes a clamping block 25 installed on the side wall of the secondary mirror flexible section 6 and a clamping slot 26 opened on the side wall of the secondary mirror 7. The clamping block 25 is clamped in the clamping slot 26. The clamping block 25 is internally installed with an elastic member 27. By clamping the clamping block 25 into the clamping slot 26, the secondary mirror flexible section 6 and the secondary mirror 7 can be connected. The elastic member 27 comprises an elastic bearing ring, a filling cavity 28 is provided inside the elastic bearing ring, an elastic cushion layer 29 is installed inside the filling cavity 28, and the elastic member 27 can provide elasticity to the card block.

[0027] See also Figures 1 to 7, which is the second technical solution provided by the present invention: a triangular support ring for supporting a secondary mirror, comprising a triangular support ring for a secondary mirror, wherein the triangular support ring for the secondary mirror is connected and assembled with a support tube 1, a support tube gasket 2, a secondary mirror support ring 3, an outer light shielding cover 4, a secondary mirror light shielding cover 5, a secondary mirror flexible joint 6 and a secondary mirror 7; The support tube 1 is installed on the side wall of the secondary mirror support ring 3, and the support tube gasket 2 is installed between the secondary mirror support ring 2 and the support tube 1; The secondary mirror shade 5 is mounted on the other end of the secondary mirror support ring 3, the secondary mirror 7 is mounted inside the secondary mirror support ring 3, and the secondary mirror flexible section 6 is mounted between the secondary mirror support ring 3 and the secondary mirror shade 4; A mounting hole is provided at the connection between the support tube 1 and the support tube gasket 2, and a fastener 8 is installed inside the mounting hole. The secondary mirror flexible section 6 and the secondary mirror 7 are connected via a clamping structure.

[0028] In some technical solutions, the inner wall of the anti-slip cylinder 12 is provided with a reverse internal thread 22, and the outer part of the anti-slip screw 13 and the anti-slip cylinder 12 are provided with a reverse external thread 20, and the reverse internal thread 22 and the reverse external thread 20 match each other.

[0029] In this technical solution, the external thread of the anti-slip screw 13 is divided into two parts, the front part cooperates with the internal thread of the anti-slip screw groove 11, and the rear part cooperates with the reverse internal thread 22 of the anti-slip cylinder 12, thereby installing the anti-slip cylinder 12 on the outside of the anti-slip screw 13.

[0030] In some technical solutions, a turntable 23 is installed at the end of the anti-slip screw 13 , and a cross groove 24 is formed on the outer wall of the turntable 23 .

[0031] In this technical solution, the anti-slip screw 13 is easily rotated by the turntable 23, and the cross groove 24 is provided to facilitate operation with a screwdriver.

[0032] In some technical solutions, an annular rotation groove 21 is formed on the outer wall of the fastening nut 10 , and an end of the limiting column 20 is arranged in the annular rotation groove 21 .

[0033] In this technical solution, when the anti-slip screw 13 is screwed into the anti-slip groove 11, the anti-slip cylinder 12 will rotate accordingly, and when the limiting column 20 contacts the fastening nut 10, it can rotate in the annular groove 21 until it contacts the inner wall of the annular groove 21, thereby supporting the fastening nut 10 and performing circumferential limiting.

[0034] In some technical solutions, a fixing ring 15 is fixedly installed on the outer upper end of the fastening screw 9 , and an annular pressing plate 14 , a spring 19 and an annular rubber sheet 18 are mounted on the circumferential surface of the fastening screw 9 .

[0035] In this technical solution, when the fastening screw 9 is rotated, the annular rubber sheet 18 slides upward due to the action of the screw hole. With further twisting, the annular rubber sheet 18 contacts the fixing ring 15. The annular rubber sheet 18 is deformed due to the action of the fixing ring 15 to seal the screw hole. The spring 19 is located on the upper side of the annular pressing sheet 14, so that the annular pressing sheet 14 is squeezed downward due to the action of the spring 19. The extrusion block 16 is squeezed downward due to the action of the annular pressing sheet 14, so that the extrusion block 16 further squeezes the edge of the annular rubber sheet 18, thereby improving the sealing effect. The annular pressing sheet 14 is located on the upper side of the fixing ring 15, the spring 19 is located on the upper side of the annular pressing sheet 14, the annular rubber sheet 18 is located on the lower side of the fixing ring 15, and the extrusion block 16 is fixedly installed at the lower end edge of the annular pressing sheet 14.

[0036] The clamping structure includes a clamping block 25 installed on the side wall of the secondary mirror flexible section 6 and a clamping slot 26 opened on the side wall of the secondary mirror 7. The clamping block 25 is clamped in the clamping slot 26. The clamping block 25 has an elastic part 27 installed inside. By clamping the clamping block 25 into the clamping slot 26, the secondary mirror flexible section 6 and the secondary mirror 7 can be connected.

[0037] The elastic member (27) comprises a support tube, and spring rods (30) are installed at both ends of the support tube; the spring rods 30 can provide elasticity for the clamping block.

[0038] An adhesive layer (31) is installed at the end of the spring rod (30), and the spring rod 30 can be connected to the inside of the block via the adhesive layer 31.

[0039] The other components in the second technical solution are the same as those in the first technical solution.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A triangular support ring for supporting a secondary mirror, comprising a triangular support ring for a secondary mirror, characterized in that: The secondary mirror triangular support ring is connected to the upper and lower parts and is equipped with a support tube (1), a support tube gasket (2), a secondary mirror support ring (3), an external light shield (4), a secondary mirror light shield (5), a secondary mirror flexible joint (6) and a secondary mirror (7); The support tube (1) is mounted on the side wall of the secondary mirror support ring (3), and the support tube gasket (2) is mounted between the secondary mirror support ring (2) and the support tube (1); The secondary mirror light shield (5) is mounted on the other end of the secondary mirror support ring (3), the secondary mirror (7) is mounted inside the secondary mirror support ring (3), and the secondary mirror flexible joint (6) is mounted between the secondary mirror support ring (3) and the secondary mirror light shield (4); A mounting hole is provided at the connection between the support tube (1) and the support tube gasket (2), a fastener (8) is installed inside the mounting hole, and the secondary mirror flexible joint (6) and the secondary mirror (7) are connected via a clamping structure.

2. A triangular support ring for supporting a secondary mirror according to claim 1, characterized in that: The fastener (8) comprises a fastening screw (9) and an anti-slipping screw (13); the fastening screw (9) is externally threadedly connected with a fastening nut (10); the bottom end of the fastening screw (9) is provided with an anti-slipping screw groove (11); the anti-slipping screw (13) is threadedly connected in the anti-slipping screw groove (11); the anti-slipping cylinder (12) is externally sleeved on the anti-slipping screw (13); three limiting columns (20) are installed on the outer wall of the anti-slipping cylinder (12); 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) matching the fastening screw (9).

3. A triangular support ring for supporting a secondary mirror according to claim 2, characterized in that: The inner wall of the anti-slipping cylinder (12) is provided with a reverse internal thread (22), the outer part of the anti-slipping screw (13) and the anti-slipping cylinder (12) are provided with a reverse external thread, and the reverse internal thread (22) and the reverse external thread match each other. A rotating disk (23) is installed at the end of the anti-slipping screw (13), and a cross groove (24) is provided on the outer wall of the rotating disk (23).

4. The triangular support ring for supporting a secondary mirror according to claim 1, characterized in that: An annular rotation groove (14) is formed on the outer wall of the fastening nut (10), and an end portion of the limiting column (20) is arranged in the annular rotation groove (14).

5. The triangular support ring for supporting a secondary mirror according to claim 2, characterized in that: A fixing ring (15) is fixedly mounted on the outer upper end of the fastening screw (9), an annular pressing sheet (14), a spring (19) and an annular rubber sheet (18) are sleeved on the circumferential surface of the fastening screw (9), and an extrusion block (16) is fixedly mounted on the lower end edge of the annular pressing sheet (14).

6. The triangular support ring for supporting a secondary mirror according to claim 1, characterized in that: The clamping structure comprises a clamping block (25) mounted on the side wall of the secondary mirror flexible joint (6) and a clamping slot (26) provided on the side wall of the secondary mirror (7); the clamping block (25) is clamped in the clamping slot (26); and an elastic member (27) is installed inside the clamping block (25).

7. A triangular support ring for supporting a secondary mirror according to claim 6, characterized in that: The elastic member (27) comprises an elastic bearing ring, a filling cavity (28) is provided inside the elastic bearing ring, and an elastic cushion layer (29) is installed inside the filling cavity (28).

8. The triangular support ring for supporting a secondary mirror according to claim 1, characterized in that: The elastic member (27) comprises a support tube, and spring rods (30) are mounted on both ends of the support tube.

9. A triangular support ring for supporting a secondary mirror according to claim 8, characterized in that: An adhesive layer (31) is installed on the end of the spring rod (30).

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