A focusing mechanism for a binocular

Abstract

The utility model relates to binoculars technical field discloses a binocular focusing mechanism, including focusing lens barrel, two focusing lens barrels are provided, two focusing lens barrels are symmetrically arranged, the inner side wall of focusing lens barrel is fixedly connected with support block, support block is detachably connected with focusing box, the inner wall of focusing box is provided with focusing knob and focusing mirror respectively, the inner wall of support block is connected with square block slidingly, the side wall of square block is elastically connected with fixed block through compression spring, the side wall of square block is fixedly connected with special-shaped block, the outer wall of special-shaped block is inserted with L type block, the front end of focusing lens barrel is fixedly connected with eyepiece barrel. In the utility model, through setting square block, compression spring, fixed block, special-shaped block and L type block, after simple pressing operation, focusing box and lens barrel can be quickly disassembled, replace and clean lens conveniently, reduce manpower and material resources to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of telescope technology, and in particular to a binocular focusing mechanism. Background Technology

[0002] Binoculars are observation instruments consisting of two monoculars placed side by side. They are mainly composed of objective lenses, eyepieces, convex lenses, and focusing mechanisms. The distance between the two tubes can be adjusted so that both eyes can observe at the same time, thereby obtaining a stereoscopic effect.

[0003] The existing technology has the following drawbacks: the focusing mechanism and lens barrel of some binoculars are fixedly connected and cannot be disassembled. When it is necessary to replace or clean the lens, a professional needs to use tools to disassemble the lens barrel and remove the lens. The operation of removing and placing the lens is time-consuming and laborious. Therefore, a binocular focusing mechanism is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a binocular focusing mechanism, which aims to improve the problem of inconvenient lens replacement in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a binocular focusing mechanism, comprising a focusing lens tube, wherein two focusing lens tubes are provided and arranged symmetrically, a support block is fixedly connected to the inner wall of the focusing lens tube, a focusing box is detachably connected to the support block, a focusing knob and a focusing lens are respectively provided on the inner wall of the focusing box, a block is slidably connected to the inner wall of the support block, a fixing block is elastically connected to the side wall of the block by a compression spring, an irregularly shaped block is fixedly connected to the side wall of the block, an L-shaped block is inserted into the outer wall of the irregularly shaped block, an eyepiece tube is fixedly connected to the front end of the focusing lens tube, and an eyepiece is slidably connected to the inner wall of the eyepiece tube.

[0006] As a further description of the above technical solution: The outer wall of the eyepiece tube is rotatably connected to a cylinder, the inner wall of the cylinder is threaded, the top of the eyepiece is fixedly connected to a moving block, and the top of the moving block is fixedly connected to a ball bearing.

[0007] As a further description of the above technical solution: There are two support blocks arranged symmetrically, and there are two focusing lenses arranged symmetrically. The focusing lenses are detachably installed on the inner wall of the focusing lens barrel, and the focusing lenses pass through the support blocks and are in contact with their inner walls.

[0008] As a further description of the above technical solution: The side wall of the block is fixedly connected to one end of the compression spring, and the other end of the compression spring is fixedly connected to the side wall of the fixing block. The fixing block is fixedly connected to the inner wall of the support block.

[0009] As a further description of the above technical solution: The irregularly shaped block is slidably connected inside the fixed block and is slidably connected to the inner wall of the support block.

[0010] As a further description of the above technical solution: The L-shaped block is fixedly connected to the outer right side of the focusing box, and the L-shaped block is inserted into the inner wall of the support block.

[0011] As a further description of the above technical solution: The movable block is slidably connected to the inner wall of the eyepiece tube.

[0012] As a further description of the above technical solution: The ball bearings are slidably connected to the surface of the thread.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by setting up square blocks, compression springs, fixing blocks, irregular blocks and L-shaped blocks, the focusing box and lens barrel can be quickly separated by a simple pressing operation, which facilitates lens replacement and cleaning and reduces manpower and material resources to a certain extent.

[0014] 2. In this utility model, by setting up an eyepiece tube, a cylinder, a thread, an eyepiece, a moving block, and a ball bearing, the distance between the eyepiece and the eye can be adjusted through a simple rotation operation, so that users with different degrees of myopia or hyperopia in the left and right eyes can use the telescope better. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a binocular focusing mechanism proposed in this utility model. Figure 2 This is a cross-sectional schematic diagram of the focusing barrel and focusing box of a binocular focusing mechanism proposed in this utility model. Figure 3 This is a cross-sectional schematic diagram of the support frame for a binocular focusing mechanism proposed in this utility model; Figure 4 This is a cross-sectional schematic diagram of the eyepiece tube of a binocular focusing mechanism proposed in this utility model.

[0016] Legend: 1. Focusing lens barrel; 2. Support block; 3. Focusing box; 4. Focusing knob; 5. Focusing lens; 6. Square block; 7. Compression spring; 8. Fixing block; 9. Irregularly shaped block; 10. L-shaped block; 11. Eyepiece barrel; 12. Cylindrical; 13. Thread; 14. Eyepiece; 15. Moving block; 16. Ball bearing. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-3 This utility model provides an embodiment of a binocular focusing mechanism, including a focusing tube 1. Two focusing tubes 1 are provided, symmetrically arranged. A support block 2 is fixedly connected to the inner wall of each focusing tube 1. The side of the support block 2 that is fixed to the focusing tube 1 is arc-shaped to better fit the focusing tube 1 and prevent damage during disassembly. A focusing box 3 is detachably connected to the support block 2. The focusing box 3 is an existing structure, mainly housing the focusing knob 4 and the focusing lens 5, which will not be described in detail here. The inner wall of the focusing box 3 is respectively provided with the focusing knob 4 and the focusing lens 5 for adjusting the focal length. When adjusting the focus, the focusing knob 4 needs to be rotated to rotate the screw in the middle of the focusing knob 4, which drives the focusing lens 5 to move back and forth to adjust the focus and sharpness. The inner wall of the support block 2 is slidably connected to the block 6. The side wall of the block 6 is elastically connected to the fixing block 8 through the compression spring 7. The side wall of the block 6 is fixedly connected to the irregular block 9. The irregular block 9 is L-shaped and can be stuck in the groove of the L-shaped block 10. The outer wall of the irregular block 9 is inserted into the L-shaped block 10. The L-shaped block 10 is L-shaped. The front end of the focusing lens tube 1 is fixedly connected to the eyepiece tube 11. The inner wall of the eyepiece tube 11 is slidably connected to the eyepiece 14. The main function of the eyepiece 14 is to magnify the image.

[0019] Reference Figure 4The outer wall of the eyepiece tube 11 is rotatably connected to a cylinder 12. There is friction between the eyepiece tube 11 and the cylinder 12 at the rotation point, so they will not easily rotate. A certain rotational force needs to be applied manually. The inner wall of the cylinder 12 is provided with a thread 13. The top of the eyepiece 14 is fixedly connected to a moving block 15. The moving block 15 is made of stainless steel to prevent it from rusting and contaminating the eyepiece 14. The top of the moving block 15 is fixedly connected to a ball 16. The ball 16 is a spherical protrusion that can slide on the thread 13. The moving block 15 is slidably connected to the inner wall of the eyepiece tube 11. The inner wall of the eyepiece tube 11 is provided with a groove to allow the moving block 15 to slide on the groove. The ball 16 is slidably connected to the surface of the thread 13.

[0020] Reference Figures 1-3 There are two support blocks 2 arranged symmetrically, and two focusing lenses 5 arranged symmetrically. The focusing lenses 5 are detachably mounted on the inner wall of the focusing lens barrel 1. The focusing lens barrel 1 has a cavity inside to accommodate the focusing lenses 5. The focusing lenses 5 pass through the support blocks 2 and contact their inner walls. The inner wall of the support blocks 2 has a slot to allow the focusing lenses 5 to slide on the slot. The side wall of the block 6 is fixedly connected to one end of the compression spring 7. When the block 6 is pressed backward, it compresses the compression spring 7, causing it to deform. Upon resetting, the spring 7's rebound pulls the block 6 back to its original position. The other end of the compression spring 7 is fixedly connected to the side wall of the fixed block 8. The fixed block 8 is fixedly connected to the inner wall of the support block 2. The irregular block 9 passes through and is slidably connected to the inside of the fixed block 8. The inner wall of the fixed block 8 has a slot to allow the irregular block 9 to slide in the slot. The irregular block 9 is slidably connected to the inner wall of the support block 2. The inner wall of the support block 2 has a cavity to allow the irregular block 9 to slide in the inner wall of the support block 2. The L-shaped block 10 is fixedly connected to the right outer wall of the focusing box 3. The L-shaped block 10 is inserted into the inner wall of the support block 2. The inner wall of the support block 2 has a slot to allow the L-shaped block 10 to be inserted into the slot.

[0021] Working principle: The telescope's focus adjustment is a current technology. The focus can be adjusted by rotating the focusing knob 4. When it is necessary to replace or clean the lens, the support block 2 and the focusing box 3 need to be disassembled. Simply press the square block 6 backward and squeeze the compression spring 7 to make the irregular block 9 slide backward. When the irregular block 9 and the L-shaped block 10 are no longer in contact, move the focusing tube 1 and the support block 2 to the right and release the square block 6 to complete the disassembly. To reset, simply press the square block 6 backward to make the square block 6 squeeze the compression spring 7, making the irregular block 9 slide backward to the bottom. Insert the L-shaped block 10 into the slot of the support block 2, and then release the square block 6. The force on the compression spring 7 disappears and it springs back to its original position. At this time, the irregular block 9 is locked into the notch of the L-shaped block 10 and fixed, thus completing the installation.

[0022] When it is necessary to adjust the distance between the eyepiece 14 and the eye, simply rotate the cylinder 12 to make the ball bearing 16 slide on the thread 13 on the inner wall of the cylinder 12, which will drive the moving block 15 and the eyepiece to move back and forth. Rotate the cylinder 12 clockwise to move the eyepiece 14 away from the eye, and rotate the cylinder 12 counterclockwise to move the eyepiece 14 closer to the eye. By continuously rotating the cylinder 12, the clarity can be adjusted for better observation.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A binocular focusing mechanism, comprising a focusing lens tube (1), characterized in that: Two focusing lens tubes (1) are provided, and the two focusing lens tubes (1) are arranged symmetrically. A support block (2) is fixedly connected to the inner side wall of the focusing lens tube (1). A focusing box (3) is detachably installed on the support block (2). A focusing knob (4) and a focusing lens (5) are respectively provided on the inner wall of the focusing box (3). A block (6) is slidably connected to the inner wall of the support block (2). A fixing block (8) is elastically connected to the side wall of the block (6) through a compression spring (7). A shaped block (9) is fixedly connected to the side wall of the block (6). An L-shaped block (10) is inserted into the outer wall of the shaped block (9). An eyepiece tube (11) is fixedly connected to the front end of the focusing lens tube (1). An eyepiece (14) is slidably connected to the inner wall of the eyepiece tube (11).

2. A focusing mechanism for a binocular according to claim 1, characterized in that: The outer wall of the eyepiece tube (11) is rotatably connected to a cylinder (12), the inner wall of the cylinder (12) is provided with a thread (13), the top of the eyepiece (14) is fixedly connected to a moving block (15), and the top of the moving block (15) is fixedly connected to a ball (16).

3. The binocular focusing mechanism according to claim 1, characterized in that: There are two support blocks (2), which are arranged symmetrically. There are two focusing lenses (5), which are arranged symmetrically. The focusing lenses (5) are detachably installed on the inner wall of the focusing lens barrel (1). The focusing lenses (5) penetrate the support blocks (2) and contact their inner walls.

4. The binocular focusing mechanism according to claim 1, characterized in that: The side wall of the block (6) is fixedly connected to one end of the compression spring (7), and the other end of the compression spring (7) is fixedly connected to the side wall of the fixing block (8). The fixing block (8) is fixedly connected to the inner wall of the support block (2).

5. A binocular focusing mechanism according to claim 1, characterized in that: The irregular block (9) is slidably connected inside the fixed block (8) and is slidably connected to the inner wall of the support block (2).

6. The binocular focusing mechanism according to claim 1, characterized in that: The L-shaped block (10) is fixedly connected to the outer right side of the focusing box (3), and the L-shaped block (10) is inserted into the inner wall of the support block (2).

7. A binocular focusing mechanism according to claim 2, characterized in that: The movable block (15) is slidably connected to the inner wall of the eyepiece tube (11).

8. A binocular focusing mechanism according to claim 2, characterized in that: The ball (16) is slidably connected to the surface of the thread (13).

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