Adjustable lens fixing structure

Abstract

The utility model relates to a fixing structure, in particular to an adjustable lens fixing structure, which comprises a camera body, a fixing seat, a lens body and bumps, the camera body is fixedly connected with the fixing seat, the fixing seat is provided with a first clamping groove, the lower part of the lens body is fixedly connected with a plurality of bumps in the circumferential direction, and the bumps are clamped with the first clamping groove. By rotating the connecting ring, the inner side gap of the clamping block is adjusted, so that the clamping block can clamp and fix G1 lenses with different diameters, and after the connecting ring is loosened, the clamping block rotates reversely under the action of the torsion spring to fix the G1 lenses, so that the lenses with different calibers are replaced.

Description

Technical Field

[0001] The utility model relates to a fixing structure, in particular to an adjustable lens fixing structure. Background Art

[0002] A lens mounting mechanism refers to a mechanical device used to securely mount a lens on a camera or other optical device. This structure not only ensures the stability of the lens but also allows the user to make various adjustments as needed, such as focus, zoom, and angle adjustment.

[0003] G1 lenses are a very important component of wide-angle lenses, usually referring to the first group of lenses closest to the front. In optical design, G1 lenses have a significant impact on the performance and characteristics of the lens. However, when designing compact wide-angle lenses, due to the space limitations of the lens, it is difficult to achieve a larger field of view without increasing the lens volume. In order to achieve a wide-angle field of view, it is necessary to replace the larger front group of lenses, but traditional positioning structures often cannot support the replacement of larger-diameter lenses.

[0004] Therefore, it is necessary to design an adjustable lens fixing structure. Utility Model Content

[0005] In order to overcome the spatial limitations of the lens, it is difficult to achieve a larger field of view without increasing the volume of the lens. In order to achieve a wide-angle field of view, a larger front lens group needs to be replaced. However, the traditional positioning structure often cannot support the replacement of larger-diameter lenses. The utility model provides an adjustable lens fixing structure.

[0006] The technical implementation scheme of the utility model is: an adjustable lens fixing structure, including a camera body, a fixing seat, a lens body and a protrusion, the camera body is fixedly connected to the fixing seat, the fixing seat is provided with a first card slot, the lower portion of the lens body is fixedly connected to a plurality of protrusions circumferentially, the protrusion is engaged with the first card slot, and also includes a fixing tube, a fixing rod, a clamping block, a torsion spring, a positioning rod, a rotating ring, a limiting rod, a connecting rod, a connecting ring and a lens cover, a fixing tube is installed on the side of the lens body away from the camera body, a plurality of fixing rods are fixed in the fixing tube, a clamping block for clamping the lens is rotatably provided on the fixing rod, a torsion spring is connected between the fixing rod and the clamping block, the positioning rod is fixed on the clamping block, a rotating ring is rotatably provided in the fixing tube, a plurality of limiting rods are fixed on the rotating ring, the positioning rod and the adjacent limiting rods are rotatably provided with a connecting rod, the connecting ring is fixed on the rotating ring, a plurality of first guide grooves are circumferentially provided on the fixing tube, the connecting ring slides in the first guide groove, and the lens cover is threadedly provided on the upper portion of the fixing tube.

[0007] Optionally, the first clamping groove consists of an annular groove and vertical sliding grooves corresponding to the number of the protrusions.

[0008] Optionally, a first guide rod is further included, and the bottom of the fixed cylinder is fixedly connected to the first guide rod along the circumferential direction with a number corresponding to the number of protrusions, and the rotating ring is provided with first guide grooves along the circumferential direction corresponding to the number of the first guide rods, and the first guide rods are in sliding contact with adjacent first guide grooves.

[0009] Optionally, it also includes a protective cover, a second guide rod, an elastic member and a card block. The protective cover is fixedly connected to the upper part of the camera body, and the protective cover covers the fixed seat. A plurality of second guide rods are circumferentially slidably provided on the side of the protective cover close to the camera body. An elastic member is connected between the second guide rods and the protective cover. Second card slots corresponding to the number of the second guide rods are opened at the lower part of the lens body. A card block that passes through the fixed seat is fixedly connected to the end of the second guide rod close to the lens body, and the card block slides and engages with the adjacent second card slot.

[0010] Optionally, a rubber pad is further included, and the rubber pad is installed on the inner side of the clamping block.

[0011] Optionally, multiple groups of anti-slip grooves are provided on the outer side of the connecting ring.

[0012] The beneficial effects are: 1. By rotating the connecting ring, the inner gap of the clamping block is adjusted, so that the clamping block can clamp and fix G1 lenses of different diameters. After loosening the connecting ring, the clamping block rotates in the opposite direction under the action of the torsion spring to fix the G1 lens, thereby realizing the replacement of lenses of different calibers.

[0013] 2. The first guide rod guides the rotating ring under the action of the second guide groove, so that the rotating ring maintains circular motion, thereby ensuring that the rotation angle of each clamping block remains the same, so that the center of the G1 lens and the lens body remain in the same straight line.

[0014] 3. When the lens body is rotated until the second card slot is aligned with the card block, the card block is engaged with the second card slot under the action of the elastic member, so that the card block reinforces the lens body to prevent the lens body from being separated from the camera body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the camera body, fixing seat and lens body of the utility model.

[0017] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This is an exploded view of the fixing seat, lens body and protrusion of the utility model.

[0019] Figure 5It is a schematic three-dimensional cross-sectional structure diagram of the fixing tube, lens body and clamping block of the utility model.

[0020] Figure 6 It is a schematic three-dimensional cross-sectional structure diagram of the fixing tube and the lens cover of the utility model.

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating ring, the limiting rod and the connecting ring of the utility model.

[0022] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing rod, the clamping block and the torsion spring of the utility model.

[0023] Figure 9 It is a schematic diagram of the three-dimensional structure of the clamping block, positioning rod and rubber pad of the utility model.

[0024] The meanings of the reference numerals in the figure are as follows: 1: camera body, 2: fixing seat, 3: lens body, 4: bump, 5: first slot, 6: fixing tube, 7: fixing rod, 8: clamping block, 9: torsion spring, 10: positioning rod, 11: rotating ring, 12: limiting rod, 1201: connecting rod, 13: first guide groove, 14: connecting ring, 15: lens cover, 16: first guide rod, 17: second guide groove, 18: second slot, 19: protective cover, 20: second guide rod, 21: elastic member, 22: block, 23: rubber pad, 24: anti-slip groove. DETAILED DESCRIPTION

[0025] The preferred technical solution of the present utility model is described in detail below with reference to the accompanying drawings.

[0026] Example 1: An adjustable lens fixing structure, see Figures 1-9As shown, it includes a camera body 1, a fixing seat 2, a lens body 3 and a protrusion 4. The camera body 1 is fixed with the fixing seat 2 by welding. The fixing seat 2 is provided with a first card groove 5. Three protrusions 4 are fixedly connected to the lower part of the lens body 3 at even intervals in the circumference. The first card groove 5 consists of an annular groove and three vertical slide grooves with the protrusion 4. When the lens body 3 is inserted into the fixing seat 2, the protrusion 4 first slides into the annular groove along the vertical slide groove. After the lens body 3 is rotated, the protrusion 4 is engaged with the annular groove of the first card groove 5. A fixing cylinder 6 is installed on the top of the lens body 3 by bolt connection. Five fixing rods 7 are fixed in the fixing cylinder 6. A clamping block 8 for clamping the lens is rotatably provided on the fixing rod 7. A rubber pad 23 is installed on the inner side of the clamping block 8. The rubber pad 23 is used to increase the friction between the clamping block 8 and the lens so that the rubber pad 23 can firmly clamp the lens, a torsion spring 9 is connected between the fixing rod 7 and the clamping block 8, the torsion spring 9 is sleeved on the fixing rod 7, a positioning rod 10 is fixed to the clamping block 8, a rotating ring 11 is rotatably provided in the fixing tube 6, five limit rods 12 are fixed on the rotating ring 11, the positioning rod 10 and the adjacent limit rods 12 are rotatably provided with a connecting rod 1201, a connecting ring 14 is fixed on the rotating ring 11, five groups of anti-skid grooves 24 are provided on the outside of the connecting ring 14, the anti-skid grooves 24 are used to increase the friction between the connecting ring 14 and the hand to prevent slipping when rotating the connecting ring 14, five first guide grooves 13 are opened in the circumference of the fixing tube 6, the connecting ring 14 is connected to the rotating ring 11 through a connecting block, the connecting block on the connecting ring 14 slides in the first guide groove 13, and a lens cover 15 is threadedly provided on the upper part of the fixing tube 6.

[0027] When using the lens, insert the lens body 3 into the fixing seat 2 and rotate it so that the protrusion 4 is aligned with the first slot 5, thereby fixing the lens body 3. When the G1 lens needs to be replaced, turn the lens cover 15 upward to open the fixing tube 6, and then rotate the connecting ring 14. The connecting ring 14 drives the rotating ring 11 to rotate. The rotating ring 11 drives the clamping block 8 to rotate around the fixing rod 7 through the limit rod 12, the connecting rod 1201 and the positioning rod 10. The clamping block 8 drives the torsion spring 9 to deform. As the connecting ring 14 rotates, the inner gap of the clamping block 8 is adjusted, so that the clamping block 8 can clamp and fix G1 lenses of different diameters. Then, the G1 lens is placed between the inner gap of the clamping block 8, and the connecting ring 14 is loosened. The torsion spring 9 drives the clamping block 8 to rotate in the opposite direction to fix the G1 lens, thereby realizing the replacement of lenses of different calibers.

[0028] Example 2: Based on Example 1, refer to Figure 5 and Figure 7 As shown, it also includes a first guide rod 16. Five first guide rods 16 are fixed to the bottom of the fixed cylinder 6 at even intervals along the circumferential direction. The rotating ring 11 has five first guide grooves 13 opened along the circumferential direction. The first guide rods 16 are in sliding contact with adjacent first guide grooves 13.

[0029] When the connecting ring 14 is rotated, the connecting ring 14 drives the rotating ring 11 to rotate, and the first guide rod 16 guides the rotating ring 11 under the action of the second guide groove 17, so that the rotating ring 11 maintains circular motion, thereby ensuring that when the gap of the clamping block 8 is adjusted, the rotation angle of each clamping block 8 remains the same, so that the center of the G1 lens and the lens body 3 remain in the same straight line.

[0030] See Figure 1-Figure 3 As shown, it also includes a protective cover 19, a second guide rod 20, an elastic member 21 and a clamping block 22. The protective cover 19 is fixedly connected to the upper part of the camera body 1 by welding. The protective cover 19 covers the fixing seat 2. Three second guide rods 20 are slidingly arranged at even intervals along the circumference of the lower part of the protective cover 19. An elastic member 21 is connected between the second guide rods 20 and the protective cover 19. The elastic member 21 is sleeved on the second guide rods 20. Three second card slots 18 are opened at the lower part of the lens body 3. The end of the second guide rod 20 close to the lens body 3 is fixedly connected to a clamping block 22 that penetrates the fixing seat 2. The clamping block 22 slides and clamps with the adjacent second card slot 18.

[0031] When the lens body 3 is inserted into the fixing seat 2 and rotated, the clamping block 22 is squeezed under the lens body 3 to slide outward, and the clamping block 22 drives the second guide rod 20 to slide outward. The second guide rod 20 stretches the elastic member 21 to deform. When the lens body 3 is rotated until the second slot 18 is aligned with the clamping block 22, the elastic member 21 returns to its original state and drives the clamping block 22 and the second guide rod 20 to slide inward. The clamping block 22 is engaged with the second slot 18, so that the clamping block 22 reinforces the lens body 3 to prevent the lens body 3 from being separated from the camera body 1 during use.

[0032] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications may be made to the present invention without departing from the principles and spirit of the present invention as defined in the claims. Therefore, the detailed description of the disclosed embodiments is intended to illustrate rather than limit the present invention, which shall be defined by the claims.

Claims

1. An adjustable lens fixing structure, comprising a camera body (1), a fixing seat (2), a lens body (3) and a protrusion (4), wherein the camera body (1) is fixedly connected to the fixing seat (2), the fixing seat (2) is provided with a first clamping groove (5), a plurality of protrusions (4) are fixedly connected to the lower part of the lens body (3) in a circumferential direction, and the protrusions (4) are clamped with the first clamping groove (5), and the characteristics are: The invention also comprises a fixing tube (6), a fixing rod (7), a clamping block (8), a torsion spring (9), a positioning rod (10), a rotating ring (11), a limiting rod (12), a connecting rod (1201), a connecting ring (14) and a lens cover (15). A fixing tube (6) is installed on a side of the lens body (3) away from the camera body (1). A plurality of fixing rods (7) are fixedly connected in the fixing tube (6). A clamping block (8) for clamping the lens is rotatably provided on the fixing rod (7). A torsion spring (9) is connected between the fixing rod (7) and the clamping block (8). A positioning rod (10) is fixed on the clamping block (8), a rotating ring (11) is rotatably provided in the fixed cylinder (6), a plurality of limiting rods (12) are fixed on the rotating ring (11), a connecting rod (1201) is rotatably provided between the positioning rod (10) and the adjacent limiting rods (12), a connecting ring (14) is fixed on the rotating ring (11), a plurality of first guide grooves (13) are circumferentially provided on the fixed cylinder (6), the connecting ring (14) slides in the first guide grooves (13), and a lens cover (15) is threadedly provided on the upper portion of the fixed cylinder (6).

2. The adjustable lens fixing structure according to claim 1, wherein: The first clamping groove (5) consists of an annular groove and vertical sliding grooves corresponding in number to the protrusions (4).

3. The adjustable lens fixing structure according to claim 2, wherein: The invention also includes first guide rods (16). The inner bottom of the fixed cylinder (6) is fixedly connected to the first guide rods (16) along the circumferential direction, and the number of the first guide rods (16) corresponds to the number of the protrusions (4). The rotating ring (11) is provided with first guide grooves (13) along the circumferential direction, and the number of the first guide rods (16) corresponds to the number of the first guide rods (16). The first guide rods (16) are in sliding contact with adjacent first guide grooves (13).

4. The adjustable lens fixing structure according to claim 3, wherein: The invention also comprises a protective cover (19), a second guide rod (20), an elastic member (21) and a card block (22); the upper part of the camera body (1) is fixedly connected with the protective cover (19); the protective cover (19) covers the fixing seat (2); a plurality of second guide rods (20) are slidably provided on one side of the protective cover (19) close to the camera body (1) along a circumferential direction; an elastic member (21) is connected between the second guide rods (20) and the protective cover (19); the lower part of the lens body (3) is provided with second card slots (18) corresponding to the number of the second guide rods (20); one end of the second guide rod (20) close to the lens body (3) is fixedly connected with a card block (22) penetrating the fixing seat (2); the card block (22) slides and is carded with an adjacent second card slot (18).

5. The adjustable lens fixing structure according to claim 4, characterized in that: It also includes a rubber pad (23), and the rubber pad (23) is installed on the inner side of the clamping block (8).

6. The adjustable lens fixing structure according to claim 5, characterized in that: A plurality of groups of anti-slip grooves (24) are arranged on the outside of the connecting ring (14).

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