Infrared short-focus athermalization lens assembly suitable for smart home

Abstract

The utility model particularly relates to an infrared short-focus athermalization lens assembly suitable for smart home, which comprises a lens body, a lens is arranged in the lens body, an adjusting knob is arranged on the outer wall of the left end of the lens body, a protection assembly is arranged on the lens body, and the lens body is connected with the lens through the protection assembly. A buffering assembly is arranged on the outer wall of the lens body, the protection assembly is arranged on the lens body, the sliding rod is driven by the restoring force of the first spring to slide in the sliding groove in a reset mode, the sliding rod drives the inner wall of the protection cover to be attached to the outer wall of the lens body, and therefore the purpose that the protection range of the protection cover to the lens body and the lens is increased is achieved. And the protective cover drives the rotating rod to rotate in the sliding rod, so that when the protective cover is not used, the protective cover is driven by the rotating rod to rotate to the top of the lens body to stay, and the protective cover is not easy to lose when the protective cover is not used.

Description

Technical Field

[0001] The utility model relates to the technical field of lenses, in particular to an athermalized infrared short-focus lens assembly applicable to smart home. Background Art

[0002] In recent years, with the continuous breakthrough of the research bottleneck of chalcogenide glass, its cost has been gradually reduced, making it possible for the wide application of devices such as infrared thermal imagers and infrared detectors. Therefore, chalcogenide glass has been rapidly applied and developed in military and civilian fields, and chalcogenide glass has begun to show excellent potential in the application field of infrared materials. In the field of infrared optics, chalcogenide glass is considered to be the most potential material to replace single-crystal germanium. It can not only form glass with chalcogenide elements or in combination with each other, but also form network-shaped chalcogenide glass by combining chalcogenide elements with elements such as germanium, arsenic, silicon, aluminum, gallium, indium, and phosphorus. Compared with the former, this type of multi-component chalcogenide glass has a series of more important and excellent properties. With the continuous in-depth research on chalcogenide glass and the progress and application of its preparation technology, chalcogenide glass is more and more widely used in infrared optical materials. Technologies such as aspheric surfaces and binary diffractive surfaces are gradually applied to the design of chalcogenide glass lenses, and the quality requirements such as surface accuracy and appearance grade are getting higher and higher, especially for the athermalized infrared short-focus lens assembly applied to smart home;

[0003] When the currently used lens assembly is in use, in order to ensure the safety of the lens, a protective cover is usually set on the lens body when it is not in use. The existing protective cover is usually connected to the lens body by threads and protects the lens. When the protective cover is not in use, it is easy to be lost. At the same time, the protection range of the protective cover is limited and cannot protect the lens body on the lens. Therefore, the practicability is limited. In view of the above defects, the present utility model is proposed. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide an athermalized infrared short-focus lens assembly applicable to smart home to solve the problems raised.

[0005] To solve the above technical problems, the present utility model provides the following technical solution: An athermalized infrared short-focus lens assembly applicable to smart home, including a lens body, a lens is disposed inside the lens body, an adjustment knob is provided on the outer wall of the left end of the lens body, a protection component is provided on the lens body, the lens body is connected to the lens through the protection component, and a buffer component is provided on the outer wall of the lens body;

[0006] The lens is protected by sliding the protection component left and right, and the lens body is protected by sliding the buffer component forward and backward.

[0007] The protection component includes two sets of sliding grooves symmetrically arranged on the surface of the lens body. First springs are provided on the inner walls of the sliding grooves. The other ends of the first springs are fixedly connected with sliding rods. The sliding rods slide in the sliding grooves. A rotating rod is rotated at the right end of the sliding rod at the top of the lens body. Two sets of anti-loosening washers are sleeved on the surface of the rotating rod. A protective cover is provided at the right end of the rotating rod. A limiting ring is provided at the bottom of the protective cover. A limiting rod is provided at the right end of the sliding rod at the bottom of the lens body.

[0008] Preferably, the protective cover is designed to be transparent, and rubber pads are provided on the inner walls of the protective cover.

[0009] Preferably, the limiting rod is designed to be rectangular, and a groove adapted to the shape of the limiting rod is formed in the limiting ring.

[0010] Preferably, the buffer component includes two sets of movable bins symmetrically arranged on the front and rear end surfaces of the protective cover. Second springs are provided on the inner walls of the movable bins. Two sets of guiding grooves are formed on the inner walls of the movable bins. Guide blocks slide in the guiding grooves. Connecting rods are provided in the middle of the guide blocks. The inner ends of the connecting rods are fixedly connected with the other ends of the second springs. Buffer plates are provided on the outer end surfaces of the connecting rods.

[0011] Preferably, the connecting rod is designed to be semi-circular, and the guide block is provided with a through hole adapted to the connecting rod.

[0012] Preferably, the buffer plate is designed to be semi-circular, and the two buffer plates wrap the lens body.

[0013] Preferably, one end of the second spring is welded to the inner wall of the movable bin, the other end of the second spring is welded to the inner end of the connecting rod, and the second spring is arranged at the middle position on the inner wall of the movable bin.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. By means of the protection component arranged on the lens body in the present invention, the resilience of the first spring drives the sliding rod to slide back in the sliding groove, and the sliding rod drives the inner wall of the protective cover to fit with the outer wall of the lens body, so as to achieve the purpose of increasing the protection range of the protective cover for the lens body and the lens. Then, the protective cover drives the rotating rod to rotate in the sliding rod, so that when the protective cover is not in use, it rotates to the top of the lens body and stays under the drive of the rotating rod, thus preventing the protective cover from being easily lost when not in use.

[0016] 2. The utility model protects the lens body and the lens through a buffer assembly arranged on the lens body. When the lens body drops to the ground, the buffer plate will receive the impact force, drive the guide block to slide in the guide groove through the connecting rod, and cause the connecting rod to squeeze the second spring. Then, the resilience of the second spring is used to counteract the impact force received by the buffer plate, so as to buffer the impact force on the lens body, minimize the damage to the lens body, and effectively improve the service life of the lens body and the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 is a structural schematic diagram of the active state of the utility model;

[0019] Figure 3 is a partial cross-sectional structural schematic diagram of the protection assembly of the utility model;

[0020] Figure 4 is a partial cross-sectional structural schematic diagram of the buffer assembly of the utility model;

[0021] Figure 5 In the utility model Figure 3 is an enlarged view of part A;

[0022] Figure 6 In the utility model Figure 4 is an enlarged view of part B.

[0023] The numbers in the figure represent:

[0024] 1. Lens body; 2. Lens; 3. Adjusting knob; 4. Protection assembly; 41. Slide groove; 42. First spring; 43. Slide rod; 44. Rotating rod; 45. Lock washer; 46. Protective cover; 47. Limit ring; 48. Limit rod; 5. Buffer assembly; 51. Activity bin; 52. Second spring; 53. Guide groove; 54. Guide block; 55. Connecting rod; 56. Buffer plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further elaborates the above and other technical features and advantages of the utility model in conjunction with the drawings and embodiments. However, the following embodiments are only the preferred embodiments of the utility model and not all of them.

[0026] Embodiment:

[0027] As Figures 1-6As shown in the figure, the utility model provides an infrared short-focus athermalized lens assembly suitable for smart home, which includes a lens body 1. A lens 2 is built into the lens body 1. An adjustment knob 2 is provided on the outer wall at the left end of the lens body 1. A protective component 4 is provided on the lens body 1. The lens body 1 is connected to the lens 2 through the protective component 4. A buffer component 5 is provided on the outer wall of the lens body 1;

[0028] It slides left and right through the protective component 4 to protect the lens 2, and slides back and forth through the buffer component 5 to protect the lens body 1.

[0029] The protective component 4 includes two groups of sliding grooves 41 symmetrically arranged on the surface of the lens body 1. First springs 42 are provided on the inner walls of the sliding grooves 41. The other ends of the first springs 42 are fixedly connected with sliding rods 43. The sliding rods 43 all slide in the sliding grooves 41. A rotating rod 44 is rotated at the right end of the sliding rod 43 at the top of the lens body 1. Two groups of lock washers 45 are sleeved on the surface of the sliding rod 43 where the rotating rod 44 is located. A protective cover 46 is provided at the right end of the rotating rod 44. A limiting ring 47 is provided at the bottom of the protective cover 46. A limiting rod 48 is provided at the right end of the sliding rod 43 at the bottom of the lens body 1.

[0030] When the lens body 1 is not in use, by pulling the protective cover 46 in the right direction of the lens body 1, the protective cover 46 drives the sliding rod 43 to slide in the sliding groove 41, and the sliding rod 43 stretches the first spring 42. Then rotate the protective cover 46, so that the protective cover 46 drives the rotating rod 44 to rotate in the sliding rod 43, and the protective cover 46 covers the lens 2. At the same time, the limiting ring 47 on the protective cover 46 is aligned with the limiting rod 48. Then loosen the limiting rod 48, and use the restoring force of the first spring 42 to drive the sliding rod 43 to slide back in the sliding groove 41, and the limiting rod 48 penetrates through the limiting ring 47, so that the protective cover 46 protects the lens 2. When the lens body 1 is in use, similarly pull the protective cover 46 to the right of the lens body 1, so that the protective cover 46 slides out of the lens body 1, and then rotate the protective cover 46, so that the protective cover 46 drives the rotating rod 44 to rotate in the sliding rod 43, and use the tension between the two lock washers 45 to achieve tightening and loosening prevention of the rotation of the rotating rod 44. Then drive by the rotating rod 44 to turn the protective cover 46 to the top of the lens body 1 and stay, so that the protective cover 46 is not easily lost when not in use.

[0031] The protective cover 46 is designed to be transparent. Rubber pads are provided on the inner walls of the protective cover 46. When the lens body 1 is not in use, the staff can observe and understand the situation of the lens 2 through the protective cover 46. At the same time, it can also prevent the hard contact between the protective cover 46 and the lens body 1, and prevent the situation that the protective cover 46 causes frictional damage to the lens body 1 when moving on the lens body 1.

[0032] The limiting rod 48 is designed in a rectangular shape, and a groove adapted to the shape of the limiting rod 48 is provided in the limiting ring 47, which can make the four sides of the limiting rod 48 fully fit with the limiting ring 47, thereby ensuring the stability of the limiting rod 48 in limiting the limiting ring 47 and preventing the protective cover 46 from driving the rotating rod 44 to rotate on the sliding rod 43, so as to avoid the situation that the protective cover 46 shakes.

[0033] The buffer assembly 5 includes two sets of movable bins 51 symmetrically arranged on the front and rear end surfaces of the protective cover 46. Second springs 52 are provided on the inner walls of the movable bins 51. Two sets of guide grooves 53 are provided on the inner walls of the movable bins 51. Guide blocks 54 are slidably arranged in the guide grooves 53. Connecting rods 55 are provided in the middle of the guide blocks 54. The inner ends of the connecting rods 55 are fixedly connected to the other ends of the second springs 52. Buffer plates 56 are arranged on the outer end surfaces of the connecting rods 55.

[0034] The lens body 1 and the lens 2 are protected by the buffer plate 56. When the lens body 1 drops to the ground, the buffer plate 56 will receive the impact force, drive the guide block 54 to slide in the guide groove 53 through the connecting rod 55, and make the connecting rod 55 squeeze the second spring 52. Then, the resilience of the second spring 52 is used to counteract the impact force received by the buffer plate 56, so as to achieve the purpose of buffering the impact force on the lens body 1, minimize the damage to the lens body 1, and effectively improve the service life of the lens body 1 and the lens 2.

[0035] The connecting rod 55 is designed in a semi-circular shape, and the guide block 54 is provided with a through hole adapted to the connecting rod 55, which can reduce the contact area between the connecting rod 55 and the guide block 54, and at the same time make the contact surface between the connecting rod 55 and the guide block 54 more fitting, thereby reducing friction and wear and improving the smoothness and efficiency of movement.

[0036] The buffer plate 56 is designed in a semi-circular shape, and the two buffer plates 56 cover the lens body 1, which can increase the protection area of the buffer plate 56 for the lens body 1 and the lens 2, and at the same time make the impact force received by the buffer plate 56 evenly distributed on the buffer plate 56.

[0037] One end of the second spring 52 is welded to the inner wall of the movable bin 51, and the other end of the second spring 52 is welded to the inner end of the connecting rod 55. The second spring 52 is arranged at the middle position on the inner wall of the movable bin 51, which can make the elastic force received by the second spring 52 evenly output to the connecting rod 55, and at the same time increase the connection strength between the second spring 52 and the movable bin 51 and the connecting rod 55, and prevent the situation that the second spring 52 is disconnected from the connecting rod 55.

[0038] The above is only a preferred embodiment of the present utility model, which is merely illustrative rather than restrictive to the present utility model. Those skilled in the art understand that many changes, modifications or even equivalents can be made to it within the spirit and scope defined by the claims of the present utility model, but all of them will fall within the protection scope of the present utility model.

Claims

1. An infrared short-focus athermal lens assembly suitable for smart home, characterized in that: The lens body (1) comprises a lens (2) built in the lens body (1), an adjusting knob (3) is provided on the outer wall of the left end of the lens body (1), a protective component (4) is provided on the lens body (1), the lens body (1) is connected to the lens (2) via the protective component (4), and a buffer component (5) is provided on the outer wall of the lens body (1); The protective component (4) slides left and right to protect the lens (2), and the buffer component (5) slides front and back to protect the lens body (1).

2. An infrared short-focus athermal lens assembly suitable for smart home as claimed in claim 1, characterized in that: The protective assembly (4) comprises two groups of slide grooves (41) symmetrically arranged on the surface of the lens body (1), the inner walls of the slide grooves (41) are each provided with a first spring (42), the other end of each of the first springs (42) is fixedly connected with a slide rod (43), the slide rod (43) slides in the slide groove (41), a rotating rod (44) is rotatably arranged at the right end of the slide rod (43) at the top of the lens body (1), the rotating rod (44) is sleeved with two groups of anti-loosening washers (45) on the surface of the slide rod (43), a protective cover (46) is arranged at the right end of the rotating rod (44), a limiting ring (47) is arranged at the bottom of the protective cover (46), and a limiting rod (48) is arranged at the right end of the slide rod (43) at the bottom of the lens body (1).

3. The infrared short-focus athermal lens assembly suitable for smart home according to claim 2, characterized in that: The protective cover (46) is designed to be transparent, and rubber pads are arranged on the inner wall of the protective cover (46).

4. The infrared short-focus athermal lens assembly suitable for smart home according to claim 2, characterized in that: The limiting rod (48) is designed to be rectangular, and a groove matching the shape of the limiting rod (48) is provided in the limiting ring (47).

5. An infrared short-focus athermal lens assembly suitable for smart home as claimed in claim 1 or 2, characterized in that: The buffer assembly (5) comprises two groups of movable bins (51) symmetrically arranged on the front and rear end surfaces of the protective cover (46), the inner walls of the movable bins (51) are each provided with a second spring (52), the inner walls of the movable bins (51) are each provided with two groups of guide grooves (53), the guide grooves (53) are each provided with a guide block (54) slidingly disposed in each guide groove (53), the middle of each guide block (54) is each provided with a connecting rod (55), the inner end of each connecting rod (55) is fixedly connected to the other end of the second spring (52), and the outer end surface of each connecting rod (55) is each provided with a buffer plate (56).

6. The infrared short-focus athermal lens assembly suitable for smart home according to claim 5, characterized in that: The connecting rod (55) is designed to be semicircular, and the guide block (54) is configured as a through hole that matches the connecting rod (55).

7. The infrared short-focus athermal lens assembly suitable for smart home according to claim 5, characterized in that: The buffer plates (56) are designed to be semicircular, and two groups of the buffer plates (56) cover the lens body (1).

8. The infrared short-focus athermal lens assembly suitable for smart home according to claim 5, characterized in that: One end of the second spring (52) is welded to the inner wall of the movable bin (51), and the other end of the second spring (52) is welded to the inner end of the connecting rod (55). The second spring (52) is arranged at a middle position on the inner wall of the movable bin (51).

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