CN215217836U

CN215217836U - Lens cover structure and infrared sensor

Info

Publication number: CN215217836U
Application number: CN202120887888.0U
Authority: CN
Inventors: 冷仕平; 王重明
Original assignee: Leedarson Lighting Co Ltd
Current assignee: Leedarson Lighting Co Ltd; Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-12-17
Anticipated expiration: 2031-04-27

Abstract

The utility model provides a lens lid structure and infrared sensor, including the shell that has the lens hole, shelter from in lens and the lens lid of lens hole department, lens have can non-light tight visual portion, lens lid portion shelters from or does not shelter from visual portion, lens lid can dismantle connect in the lens hole department of shell. The utility model provides a lens lid structure and infrared sensor can dismantle the lens lid of connecting in the shell through the setting for the lens lid can be changed, if change for the lens lid that does not shelter from visual portion or change for the lens lid that the part sheltered from visual portion, but also can change the lens lid that covers the structure difference. Therefore, the lens cover of the lens cover structure can be replaced according to specific use scenes, and the application range is wider.

Description

Lens cover structure and infrared sensor

Technical Field

The utility model belongs to the technical field of the sensor, more specifically say, relate to a lens lid structure and infrared sensor.

Background

The outside of the probe of the sensor is usually provided with a lens, so that the probe can be protected, and the light can be refracted. At present, a part of lenses of sensors on the market are not covered, so that a large environmental noise signal is generated when special scenes (such as corridors, passageways and the like) are detected, and the detection result is inaccurate; although the other part of the lenses are provided with the covers, the covers are fixed on the shell of the sensor, the covers cannot be replaced, and the applicable scene is single.

Disclosure of Invention

An object of the embodiment of the utility model is to provide a lens lid structure and infrared sensor to do not cover on the lens that exists among the solution prior art and lead to the testing result inaccurate, perhaps cover on the lens and can't change the more single technical problem of scene that leads to being suitable for.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a lens cover structure including a housing having a lens hole, a lens shielded at the lens hole, the lens having a visible portion capable of transmitting light, and a lens cover partially or not shielding the visible portion, the lens cover being detachably coupled to the lens hole of the housing.

In one embodiment, the lens hole of the housing has a plurality of circumferentially spaced snaps by which the lens cover snaps into engagement with the housing.

In one embodiment, when the lens cover does not shield the visible portion, the lens cover is a lens fixing ring, a clamping portion is formed at the edge of the lens fixing ring along the axial extension of the lens fixing ring, and a clamping groove which is formed by extending the lens fixing ring in the circumferential direction and is used for clamping with a buckle is formed in the clamping portion, so that the lens fixing ring is rotatably clamped on the shell.

In one embodiment, the housing is provided with an alignment portion, and the lens fixing ring is provided with a first marking portion for aligning with the alignment portion to mark the locking position of the lens fixing ring.

In one embodiment, when the lens cover partially covers the visible portion, the lens cover is a shielding cover, and the shielding cover is clamped to the housing through the buckle and can rotate relative to the housing.

In one embodiment, a plurality of clamping flanges arranged at intervals are formed at the periphery of the shielding cover in a radially outward extending mode, the clamping flanges are used for being abutted to the buckles to prevent the shielding cover from falling off, and a space avoiding portion for the buckles to penetrate is formed between every two adjacent clamping flanges.

In one embodiment, the housing is provided with an alignment portion, and the shielding cover is provided with a second marking portion for aligning with the alignment portion to mark the dismounting position of the shielding cover.

In one embodiment, the shielding cover is provided with a light-transmitting window, and the light-transmitting window is semicircular or elongated.

In one embodiment, the housing is provided with a support structure in the lens hole, the lens cover structure further includes a fixing ring fixedly connected with the support structure, and the edge of the lens is clamped between the support structure and the fixing ring.

The utility model also provides an infrared sensor, including foretell lens lid structure, still including locating the inside infrared probe of shell, infrared probe is just right lens setting.

The utility model provides a lens lid structure and infrared sensor's beneficial effect lies in: compared with the prior art, the utility model discloses lens lid structure includes shell, lens and lens lid, and lens have the visual portion that outside arch set up, and the lens lid part shelters from or does not shelter from visual portion completely, can dismantle the lens lid of connecting in the shell through the setting for the lens lid can be changed, if change for the lens lid that does not shelter from visual portion or change for the lens lid that the part sheltered from visual portion, but also can change the lens lid that shelters from the difference of structure. So, the lens lid can be changed according to specifically using the scene, makes infrared sensor's application scope wider.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a perspective structural view of a first lens cover structure provided in an embodiment of the present invention;

fig. 2 is an exploded view of a first lens cover structure according to an embodiment of the present invention;

fig. 3 is a perspective structural view of a second lens cover structure according to an embodiment of the present invention;

fig. 4 is an exploded view of a second lens cover structure according to an embodiment of the present invention;

fig. 5 is a three-dimensional structure diagram of a third lens cover structure according to an embodiment of the present invention;

fig. 6 is an exploded view of a third lens cover structure according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a housing; 10-a lens aperture; 11-para position portion; 12-buckling; 13-a support structure; 131-a clamping hole; 2-a lens; 21-a visible portion; 22-positioning holes; 3 a-a lens-fixing ring; 3 b-a shielding cover; 31-a snap-in part; 311-card slot; 32-a first marker portion; 33-a friction portion; 34-a snap-fit flange; 35-a clearance; 36-a light transmissive window; 37-a second marker portion; 4-a fixed ring; 41-hook.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The lens cover structure provided by the embodiment of the present invention is now described.

In one embodiment of the present invention, referring to fig. 1 and fig. 2, the lens cover structure includes a housing 1, a lens 2 and a lens cover. The housing 1 is provided with a lens hole 10, the lens 2 is disposed at the lens hole 10 of the housing 1, and the lens cover is disposed on the lens 2. The lens 2 has a visual part 21 protruding outwards, and the probe of the sensor can detect through the visual angle range defined by the visual part 21. The visible part 21 may be a hemispherical protrusion. The lens cover can partially shield the visible part 21, limit the detection range of the sensor probe, reduce the environmental noise detected by the sensor probe, improve the detection precision and reduce the misjudgment rate, and the lens cover is the shielding cover 3 b. The lens cover may not block the visible portion 21, so that the visible portion 21 is completely exposed, i.e. the detection range of the sensor probe is not limited, and the lens cover is the lens fixing ring 3 a. The lens cover is detachably connected to the lens hole 10 of the housing 1, i.e. the lens cover can be detached from the housing 1 and replaced with another lens cover regardless of the type of lens cover. In this way, different lens covers can be used depending on the particular use scenario. For example, when a large range needs to be detected, the lens fixing ring 3a can be used, so that the visible part 21 of the lens 2 is not shielded, and certain decoration and fixing effects can be achieved; when only a narrow space (such as a corridor, a passageway, etc.) needs to be detected, the shielding cover 3b can be used, and the shielding cover 3b can shield two sides of the visible part 21; when only one side space needs to be detected, the shielding cover 3b can be used, and the shielding cover 3b can shield one side of the visible part 21.

The lens cover structure in the above embodiment includes the housing 1, the lens 2 and the lens cover, the lens 2 has the visual portion 21 protruding outward, the lens cover partially or completely shields the visual portion 21, and the lens cover detachably connected to the housing 1 is provided, so that the lens cover can be replaced, for example, the lens cover that does not shield the visual portion 21 or the lens cover that partially shields the visual portion 21 is replaced, and the lens cover with different shielding structures can be replaced. Therefore, the lens cover can be replaced according to specific use scenes, and the application range is wider.

In one embodiment of the present invention, please refer to fig. 2, fig. 4 and fig. 6, a plurality of buckles 12 are disposed at the lens hole 10 of the housing 1, that is, at the inner wall of the lens hole 10, and the lens cover is connected to the housing 1 through the buckles 12. A plurality of buckles 12 are arranged at intervals in the circumferential direction, and can be selected to be arranged at even intervals in the circumferential direction, so that clamping between the lens cover and the shell 1 is more stable. When the lens cover and the housing 1 are clamped by the buckle 12, the lens cover can be conveniently taken down from the housing 1 and can be detached and replaced without any tool. Therefore, the user can replace the lens cover more quickly according to the actual use scene. The shape and number of the clips 12 are not limited herein.

In one embodiment of the present invention, referring to fig. 1 and 2, when the lens cover does not cover the visible portion 21, i.e. when the visible portion 21 is completely exposed, the lens cover is in a ring shape and is a lens fixing ring 3 a. The lens fixing ring 3a is clamped in the lens hole 10 of the housing 1, and specifically, the lens fixing ring 3a can be clamped and fixed in the lens hole 10 of the housing 1, and can also be rotatably clamped in the lens hole 10 of the housing 1.

When the solid fixed ring of lens 3a joint is fixed in lens hole 10 department of shell 1, the edge of the solid fixed ring of lens 3a is formed with joint portion 31 along its axial extension, and joint portion 31 is used for the 12 joints of buckles with the lens hole 10 inner wall. The clamping portion 31 is provided with a clamping groove 311, the clamping groove 311 is formed by extending along the circumferential direction of the lens fixing ring 3a, and the buckle 12 can be clamped inside the clamping groove 311. Specifically, when the lens fixing ring 3a is mounted, the snap portion 31 on the lens fixing ring 3a is inserted into the lens hole 10 and then rotated with respect to the center of the lens hole 10, so that the snap 12 is fitted into the snap groove 311, thereby locking the lens fixing ring 3a to the housing 1. When the lens fixing ring 3a is detached, the lens fixing ring 3a is rotated in the reverse direction, the hook 12 is disengaged from the catching groove 311, and then the lens fixing ring 3a is removed. The lens fixing ring 3a is rotatably clamped on the shell 1, and the lens fixing ring 3a is very convenient to mount and dismount.

Referring to fig. 1, the housing 1 is provided with a positioning portion 11, the lens fixing ring 3a is provided with a first mark portion 32, and when the lens fixing ring 3a is rotated to align the first mark portion 32 with the positioning portion 11, the lens fixing ring 3a is clamped on the housing 1. The positioning portion 11 and the first mark portion 32 have a function of guiding and indicating the rotation of the lens fixing ring 3a, so that a user can clearly know whether the lens fixing ring 3a is clamped or not. The positioning portion 11 and the first mark portion 32 may be arrow-shaped or line-shaped.

When the lens fixing ring 3a is rotatably snap-fixed to the lens hole 10 of the housing 1, the lens fixing ring 3a may have the same peripheral structure as that of the shield cover 3b described below. Specifically, the lens fixing ring 3a is formed with clamping flanges extending radially outward at the periphery thereof, and a space-avoiding portion is formed between adjacent clamping flanges. When the lens fixing ring 3a is installed, the buckle penetrates through the clearance, then the lens fixing ring 3a is rotated, the buckle and the clearance are staggered, the lens fixing ring 3a can be clamped on the shell 1, and the lens fixing ring 3a can also rotate relative to the shell 1.

In one embodiment of the present invention, referring to fig. 3 to 6, when the lens cover partially covers the visible portion 21, the lens cover is a shielding cover 3b, which can shield part of the detecting view. The shielding cover 3b is rotatably engaged with the housing 1 by a hook 12. Shelter from lid 3b can be rotatory for shell 1, shelter from the lid 3b promptly and can change along with the rotation that shelters from lid 3b to the shelter from part of visual portion 21 to can adjust detection range and detection angle, and then can be adapted to more scenes, it is also more convenient when the installation, need not to consider the position of sheltering from lid 3b, after the installation finishes, rotatory adjustment shelters from lid 3b, make visual portion 21 expose the region accord with the detection demand can.

Optionally, referring to fig. 4 and 6, a plurality of clamping flanges 34 are formed at the periphery of the shielding cover 3b and extend radially outward, a space-avoiding portion 35 is formed between adjacent clamping flanges 34, and each clamping flange 34 is circumferentially disposed at the periphery of the shielding cover 3b and can be circumferentially and uniformly disposed at the periphery of the shielding cover 3 b. When the shielding cover 3b is installed, the shielding cover 3b is placed in the lens hole 10, the shielding cover 3b is rotated to the space avoiding portion 35 and the buckle 12 to be opposite, the shielding cover 3b is pressed downwards, then the shielding cover 3b is rotated to enable the space avoiding portion 35 and the buckle 12 to be staggered mutually, when the shielding cover 3b has a falling trend, the clamping flange 34 and the buckle 12 are abutted mutually, and the shielding cover 3b is prevented from falling off. Therefore, the shielding cover 3b is clamped on the shell 1, and the shielding cover 3b can rotate relative to the shell 1 to adjust the exposed area of the visible part 21, so as to adjust the detection angle of the sensor. When detaching the shield cover 3b, the shield cover 3b is rotated to align the escape portion 35 with the catch 12, and then the shield cover 3b can be taken out.

Optionally, referring to fig. 3 and 5, the housing 1 is provided with the positioning portion 11, and the shielding cover 3b is provided with the second mark portion 37. When the shielding cover 3b is rotated to align the second mark portion 37 with the positioning portion 11, the escape portion 35 and the catch 12 are aligned. When the shield cover 3b is attached, when the shield cover 3b is rotated to align the second mark portion 37 with the positioning portion 11, the shield cover 3b is pressed down to pass the catch 12 through the escape portion 35, and then the shield cover 3b is rotated. When the shutter cover 3b is removed, the shutter cover 3b is rotated to align the second mark portion 37 with the positioning portion 11, i.e., the space-avoiding portion 35 is opposed to the catch 12, and the shutter cover 3b can be removed at this position. The positioning portion 11 and the second marking portion 37 have a certain guiding and indicating function for the mounting and dismounting of the shielding cover 3b, and the user can clearly know the mounting and dismounting position of the shielding cover 3 b. The positioning portion 11 and the second mark portion 37 may be arrow-shaped or line-shaped.

In one embodiment of the present invention, please refer to fig. 3 and 5, the light-transmitting window 36 is disposed on the shielding cover 3b, the specific shape of the light-transmitting window 36 is not limited here, and the corresponding shielding cover 3b can be selected according to the user's requirement. As shown in fig. 4, the light-transmitting window 36 is semicircular, and one half of the hemispherical protrusion is covered by the covering cover 3b, and the other half is exposed by the light-transmitting window 36, and is suitable for detecting the left side, the right side, the upper side or the lower side in the target environment. As shown in fig. 6, the light-transmitting window 36 is in a long and narrow shape, and both opposite sides of the hemispherical protrusion are covered by the blocking cover 3b, so that the light-transmitting window is suitable for detecting the scenes such as aisles and corridors.

In one embodiment of the present invention, referring to fig. 1, fig. 3 and fig. 5, the lens cover has a friction portion 33, the friction portion 33 may be formed by a plurality of protrusions or a plurality of recesses, so as to increase the friction between the lens cover and the hand when the lens cover is rotated, thereby facilitating the installation and detachment of the lens cover.

In one embodiment of the present invention, referring to fig. 2, the housing 1 is provided with a support structure 13 inside the lens hole 10, the support structure 13 may be in a ring shape, and the support structure 13 is used for supporting the edge of the lens 2. The lens cover structure further comprises a fixing ring 4, the fixing ring 4 and the supporting structure 13 can be fixedly connected through fixing members such as screws, and the edge of the lens 2 is clamped between the fixing ring 4 and the supporting structure 13, so that the lens 2 is fixed. The edge of lens 2 has seted up locating hole 22, is provided with the location arch on the bearing structure 13, and when lens 2 installed to bearing structure 13 on, the location arch passed locating hole 22, fixes a position lens 2's position, more makes things convenient for lens 2's installation.

Optionally, referring to fig. 2, the fixing ring 4 has a hook 41, the supporting structure 13 has a fastening hole 131, when the lens 2 is mounted and fixed, the fixing ring 4 is pressed against the lens 2, and the hook 41 passes through the fastening hole 131, after the fixing ring 4 is rotated, the fixing ring 4 and the supporting structure 13 can be positioned relatively, and then the fixing ring 4 and the supporting structure 13 are completely fixed by a fixing member such as a screw. The arrangement of the clamping holes 131 and the clamping hooks 41 enables the fixing ring 4 and the supporting structure 13 to be initially positioned and fixed, and the fixing ring 4 is easier to mount and is less prone to fall off.

The utility model also provides an infrared sensor, including the lens lid structure in any of the above-mentioned embodiments, still include infrared probe, infrared probe sets up in the inside of shell 1, and just sets up lens 2 for carry out infrared detection to the environment on every side. When the lens cover is the shielding cover 3b, the lens cover has shielding effect on the detection range of the infrared probe.

The utility model provides an infrared sensor has adopted the lens lid structure in above-mentioned embodiment, and the lens lid part shelters from or does not shelter from the visual portion 21 of lens 2 completely, can dismantle the lens lid of connecting in shell 1 through the setting for the lens lid can be changed, if the lens lid that shelters from visual portion 21 or the lens lid that shelters from visual portion 21 for the part is changed, but also can change the lens lid that covers the structure difference. So, the lens lid can be changed according to specifically using the scene, and infrared sensor's application scope is wider.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A lens cover structure characterized by: the lens comprises a shell with a lens hole, a lens sheltered at the lens hole and a lens cover, wherein the lens is provided with a visual part capable of transmitting light, the visual part is sheltered or not sheltered by the lens cover part, and the lens cover is detachably connected at the lens hole of the shell.

2. The lens cover structure of claim 1, wherein: the lens hole of shell has a plurality of circumference interval settings's buckle, the lens lid pass through the buckle with the shell joint.

3. The lens cover structure of claim 2, wherein: the lens lid does not shelter from during the visual portion, the lens lid is the solid fixed ring of lens, the solid fixed ring of lens's edge is formed with joint portion along its axial extension, have in the joint portion along the solid fixed ring of lens circumference extension form and be used for with the draw-in groove of buckle joint makes solid fixed ring of lens rotate the joint in the shell.

4. The lens cover structure of claim 3, wherein: the shell is provided with an aligning part, and the lens fixing ring is provided with a first marking part which is aligned with the aligning part to mark the locking position of the lens fixing ring.

5. The lens cover structure of claim 2, wherein: when the lens cover part shields the visual part, the lens cover is a shielding cover, and the shielding cover is clamped on the shell through the buckle and can rotate relative to the shell.

6. The lens cover structure of claim 5, wherein: shelter from the radial outside joint flange that is formed with a plurality of intervals settings of border department of lid, the joint flange be used for with the buckle butt is in order to prevent shelter from the lid and drop, adjacent two form the confession between the joint flange the clearance portion of keeping away that the buckle passed.

7. The lens cover structure of claim 6, wherein: the shell is provided with an aligning part, and the shielding cover is provided with a second marking part which is aligned with the aligning part to mark the dismounting position of the shielding cover.

8. The lens cover structure of claim 5, wherein: the shielding cover is provided with a light-transmitting window, and the light-transmitting window is semicircular or long and narrow.

9. The lens cover structure of any one of claims 1-8, wherein: the shell is arranged in the lens hole and is provided with a supporting structure, the lens cover structure further comprises a fixing ring fixedly connected with the supporting structure, and the edge of the lens is clamped between the supporting structure and the fixing ring.

10. Infrared sensor, its characterized in that: including the lens cover structure of any one of claims 1-9, further comprising an infrared probe disposed inside the housing, the infrared probe being disposed opposite the lens.