Focusing ring for focusing lens

Abstract

The utility model relates to the technical field of focusing rings, in particular to a focusing ring for a focusing lens, which comprises a rubber strip, a plurality of teeth are arranged on one side of the rubber strip, the rubber strip is provided with two end parts, a buckling device is arranged on the rubber strip, the two end parts are connected together through the buckling device, and the rubber strip is fixed on the rubber strip. The buckle device comprises a shell, a screw and a buckle assembly, the shell is connected to the two ends in a sleeving mode, rectangular through holes are formed in the two ends of the shell, first through holes are formed in the top walls of the rectangular through holes, the screw extends into the first through holes and is in sliding connection with the first through holes, and the buckle assembly is arranged in the rectangular through holes; the protective jacket has the advantages that the rubber strip is effectively prevented from making contact with the skin of people, the oxidation speed of the rubber strip is greatly reduced, and the frequency of replacing the jacket is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of focus rings, in particular to a focus ring for a focusing lens. Background Art

[0002] The main function of the focus ring is to adjust the focal length. The focus ring is used on a camera lens to control the relative movement of a part of the optical group (or the entire optical group) within the lens barrel, so as to achieve the purpose of adjusting the focal length. The focus ring generally consists of an outer sleeve and an inner ring, and its outer sleeve is generally made of rubber material.

[0003] In the prior art, the outer sleeve is a sealed ring with a certain elasticity. It can be sleeved into the lens from one end and finally sleeved on the inner ring. The outer side of the outer sleeve is generally provided with tooth shapes for easy manual focusing. However, after this rubber ring comes into contact with the skin, it will be decomposed and oxidized by the skin secretions. Over time, this rubber ring will age and become sticky, and needs to be replaced in time. Therefore, the utility model provides a focus ring for a focusing lens to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a focus ring for a focusing lens to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A focus ring for a focusing lens, comprising: a rubber strip, on one side of which there are a plurality of teeth, the rubber strip has two ends, and a snap device is arranged on the rubber strip, and the snap device connects the two ends together. The snap device includes a housing, a screw and a snap component. The housing is sleeved on the two ends, rectangular through holes are opened at both ends of the housing, a first through hole is opened on the top wall of the rectangular through hole, the screw extends into the first through hole and is slidably connected thereto, and the snap component is arranged inside the rectangular through hole.

[0006] Preferably, the snap component includes a snap housing and a baffle, the snap housing is fixedly installed in the rectangular through hole, and the baffle is arranged on one side of the snap housing.

[0007] Preferably, a second through hole is opened on the upper surface of the snap housing, one end of the screw penetrates through the second through hole, a square inner groove is opened at one end of the snap housing, square through holes are opened on both side walls of the square inner groove, and a clamping component is arranged in each square through hole.

[0008] Preferably, one side of the baffle is fixedly connected with a plug board, a threaded hole is opened on the upper surface of the plug board, and one end of the screw extends into the threaded hole and is threadedly connected thereto.

[0009] Preferably, one end of the insertion plate is provided with a triangular tip.

[0010] Preferably, the clamping component includes a clamping plate, clamping teeth and an extrusion block. The clamping plate is fixedly connected to the side wall of the square through hole, the clamping teeth are fixedly connected to one side of the clamping plate, and the extrusion block is fixedly connected to the other side of the clamping plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By using the buckle device to clamp the two ends of the rubber strip together, the present utility model effectively enables the rubber strip to be used as the outer sleeve of the focusing ring, and makes it unnecessary to touch the rubber strip by hand during rotation. Rotating by pinching the buckle device can effectively avoid the contact between the rubber strip and human skin, greatly reducing its oxidation rate and the number of times of replacing the outer sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the disassembled structure of the buckle device of the present utility model;

[0015] Figure 3 is a schematic diagram of the disassembled structure of the buckle component of the present utility model;

[0016] Figure 4 is a three-dimensional structure diagram of the clamping component of the present utility model.

[0017] In the figure: 1, rubber strip; 2, teeth; 3, end; 4, buckle device; 5, housing; 6, first through hole; 7, screw; 8, rectangular through hole; 9, buckle component; 10, second through hole; 11, baffle; 12, insertion plate; 13, threaded hole; 14, triangular tip; 15, square inner groove; 16, square through hole; 17, clamping component; 18, clamping plate; 19, clamping teeth; 20, extrusion block; 21, buckle housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to clearly and completely describe the purpose and technical solution of the present utility model, and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] For the purposes of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are set forth to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring these embodiments. Additionally, all embodiments can be used in combination with each other.

[0022] Embodiment 1

[0023] Please refer to Figure 1 - Figure 2 , the present utility model provides a technical solution: a focusing ring for a focusing lens, comprising: a rubber strip 1, on one side of the rubber strip 1, there are provided a plurality of teeth 2 which are in contact with the inner ring of the rubber strip 1 so as to drive the inner ring to rotate. The rubber strip 1 is provided with two ends 3, and the end 3 is the position of a rubber strip 1. The end 3 of the rubber strip 1 can be cut off with scissors, and after cutting off, a new end 3 will be formed. A buckle device 4 is provided on the rubber strip 1, and the buckle device 4 connects the two ends 3 together. The connection length of the two ends 3 can be adjusted as needed, and the excess part can be cut off.

[0024] The buckle device 4 includes a housing 5, a screw 7 and a buckle assembly 9. The housing 5 is sleeved on the two ends 3, and the two ends 3 pass through the housing 5. Rectangular through holes 8 are opened at both ends of the housing 5. A buckle assembly 9 is arranged inside the housing 5 to clamp the inserted ends 3. A first through hole 6 is opened on the top wall of the rectangular through hole 8. The first through hole 6 penetrates the top wall of the rectangular through hole 8, and the screw 7 extends into the first through hole 6 and is slidably connected thereto. The screw can be removed, and only some parts of the buckle assembly 9 can be disassembled. The buckle assembly 9 is arranged inside the rectangular through hole 8.

[0025] Curl the rubber strip 1 with the toothed side 2 as the inside, and then pass both ends 3 through the buckle device 4. For the inserted rubber strip 1, it can be grasped at both ends and adjusted to tightly wrap the inner ring. Then insert the plug board 12 for clamping to clamp the ends 3 of the rubber strip 1, and the extra part needs to be cut off with scissors.

[0026] Embodiment 2

[0027] Please refer to Figure 1 - Figure 3 Based on Embodiment 1, the buckle assembly 9 includes a buckle housing 21 and a baffle 11. The buckle housing 21 is fixedly installed in the rectangular through hole 8. The buckle housing 21 evenly divides the rectangular through hole 8 into two parts, and each part is used to pass through one end 3. The baffle 11 is arranged on one side of the buckle housing 21. A second through hole 10 is opened on the upper surface of the buckle housing 21, and the second through hole 10 is communicated with the first through hole 6. One end of the screw 7 penetrates the second through hole 10, and the screw 7 is slidably connected with the second through hole 10. A square inner groove 15 is opened at one end of the buckle housing 21. The square groove is opened deeper. Square through holes 16 are opened on both side walls of the square inner groove 15. The side area of the square through holes 16 is set larger. A clamping component 17 is arranged in each square through hole 16. The clamping component 17 is used to clamp the rubber strip 1. A plug board 12 is fixedly connected to one side of the baffle 11. The plug board 12 is used to insert into the square inner groove 15. A threaded hole 13 is opened on the upper surface of the plug board 12. The screw 7 is provided to fix the plug board 12. One end of the screw 7 extends into the threaded hole 13 and is threadedly connected thereto. A triangular tip 14 is arranged at one end of the plug board 12. The triangular tip 14 is used to break open the two clamping components 17 to avoid jamming during the insertion of the plug board.

[0028] First, adjust the positions of both ends of the rubber strip 1, then insert the plug board 12 into the square groove so that both ends of the rubber strip 1 are firmly clamped. At this time, the toothed part 2 will be firmly connected to the inner ring. Then pass the screw 7 through the first through hole 6 and the second through hole 10 and threadedly connect it with the threaded hole 13. At this time, the plug board 12 will not be easily pulled out. When it needs to be pulled out, the screw 7 needs to be removed and then the plug board 12 can be pulled out through the baffle 11.

[0029] Embodiment 3

[0030] Please refer to Figure 4 , on the basis of Embodiment 2, the clamping assembly 17 includes a clamping plate 18, a clamping tooth 19 and a pressing block 20. The clamping plate 18 is fixedly connected to the side wall of the square through hole 16. The clamping plate 18 is an elastic plate that can be bent. The clamping tooth 19 is fixedly connected to one side of the clamping plate 18. The clamping tooth 19 is used to be clamped with the tooth 2, so that the rubber strip 1 can only be pulled through the end 3. The pressing block 20 is fixedly connected to the other side of the clamping plate 18. When the plug plate 12 is inserted, the pressing block 20 will be squeezed to both sides, and the side clamping plate 18 will bend to both sides. At this time, the clamping tooth 19 presses the rubber strip 1 tightly, so that the rubber strip 1 cannot move any more.

[0031] In actual use, the rubber strip 1 is curled with the side having the teeth 2 as the inside, and then both ends 3 are passed through the buckle device 4. The rubber strip 1 that extends in can be grabbed at both ends and adjusted to tightly wrap the inner ring. Then, the plug plate 12 is inserted for clamping to clamp the end 3 of the rubber strip 1. The extra part needs to be cut off with scissors. First, after adjusting the positions of both ends of the rubber strip 1, the plug plate 12 is inserted into the square groove so that both ends of the rubber strip 1 are firmly clamped. At this time, the teeth 2 will be firmly connected to the inner ring. Then, the screw 7 passes through the first through hole 6 and the second through hole 10 and is threadedly connected to the threaded hole 13. At this time, the plug plate 12 will not be easily pulled out. When it needs to be pulled out, the screw 7 needs to be removed and then the plug plate 12 is pulled out through the baffle 11.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A focusing ring for a focusing lens, comprising: Rubber strip (1), characterized in that: a plurality of teeth (2) are provided on one side of the rubber strip (1), the rubber strip (1) is provided with two ends (3), a snap device (4) is provided on the rubber strip (1), and the snap device (4) connects the two ends (3) together. The snap device (4) includes a housing (5), a screw (7) and a snap component (9). The housing (5) is sleeved on the two ends (3), rectangular through holes (8) are opened at both ends of the housing (5), a first through hole (6) is opened on the top wall of the rectangular through hole (8), the screw (7) extends into the first through hole (6) and is slidably connected thereto, and the snap component (9) is arranged inside the rectangular through hole (8).

2. The focusing ring for a focusing lens according to claim 1, wherein: The snap component (9) includes a snap housing (21) and a baffle (11). The snap housing (21) is fixedly installed in the rectangular through hole (8), and the baffle (11) is arranged on one side of the snap housing (21).

3. The focusing ring for a focusing lens according to claim 2, wherein: A second through hole (10) is opened on the upper surface of the snap housing (21), one end of the screw (7) penetrates through the second through hole (10), a square inner groove (15) is opened at one end of the snap housing (21), square through holes (16) are opened on both side walls of the square inner groove (15), and a clamping component (17) is arranged in each square through hole (16).

4. The focusing ring for a focusing lens according to claim 3, wherein: One side of the baffle (11) is fixedly connected with a plug board (12), a threaded hole (13) is opened on the upper surface of the plug board (12), and one end of the screw (7) extends into the threaded hole (13) and is threadedly connected thereto.

5. The focusing ring for a focusing lens according to claim 4, characterized in that: One end of the plug board (12) is provided with a triangular tip (14).

6. The focusing ring for a focusing lens according to claim 5, wherein: The clamping component (17) includes a clamping board (18), a clamping tooth (19) and an extrusion block (20). The clamping board (18) is fixedly connected to the side wall of the square through hole (16), the clamping tooth (19) is fixedly connected to one side of the clamping board (18), and the extrusion block (20) is fixedly connected to the other side of the clamping board (18).

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