Electric lens cover capable of being opened and closed quickly

Abstract

The utility model discloses an electric lens cover capable of being opened and closed rapidly. The electric lens cover comprises a lens pressing ring, an electromagnet assembly, a lens cover, a martensitic stainless steel suction pad and a permanent magnet. The lens pressing ring and the electromagnet assembly are fixedly installed on the optical equipment. The lens cover is located on the outer side of the lens pressing ring, and the top of the lens cover is rotationally connected to the top of the lens pressing ring through a first pin shaft and rotationally connected with the electromagnet assembly through a second pin shaft. The electromagnet assembly contracts after being powered on and extends after being powered off, and when powered on, the lens cover is controlled to rotate around the first pin shaft by pulling the second pin shaft to move linearly. A permanent magnet is embedded in one side, facing the lens cover, of the lens pressing ring; and martensitic stainless steel suction pads which are correspondingly sucked with the permanent magnets one by one are embedded in one side, facing the lens pressing ring, of the lens cover. The electric lens cover can be quickly opened and closed, and powerful conditions are provided for quick unfolding and unattended operation of optical equipment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of lens cover, specifically relates to a quick open and close electric lens cover. BACKGROUND

[0002] For important optical equipment, its optical lens or optical window is often expensive, high sensitivity, easy to be polluted and damaged by wind sand, dust and rain. Therefore, in order to protect the optical lens or optical window, a lens cover is usually equipped. In the scene convenient for personnel to reach, the lens cover can be installed or disassembled manually, but in the case that personnel cannot reach or unattended, the lens cover controlled manually cannot be used. SUMMARY

[0003] In view of the problems that manual installation and disassembly of the lens cover are time-consuming and laborious and are not conducive to unattended and rapid deployment of equipment in the prior art, the utility model provides a quick open and close electric lens cover, which can be quickly opened and closed, improve the survivability of the optical lens or optical window, and further improve the overall performance of the optical equipment.

[0004] In order to achieve the above purpose, the utility model adopts the following specific technical scheme:

[0005] A quick open and close electric lens cover for optical equipment, the electric lens cover comprises a lens compression ring, an electromagnet assembly, a lens cover, a martensitic stainless steel suction pad and a permanent magnet;

[0006] The lens compression ring and the electromagnet assembly are fixedly installed on the optical equipment;

[0007] The lens cover is located on the outside of the lens compression ring, the top is rotatably connected to the top of the lens compression ring through a first pin shaft, and is rotatably connected with the electromagnet assembly through a second pin shaft;

[0008] The electromagnet assembly is contracted by energization and expanded by de-energization, and rotates the lens cover around the first pin shaft by pulling the second pin shaft to move linearly when energized;

[0009] The lens compression ring is embedded with a permanent magnet on the side facing the lens cover;

[0010] The lens cover is embedded with the martensitic stainless steel suction pad corresponding to the permanent magnet on the side facing the lens compression ring.

[0011] Further, a rubber gasket is further included;

[0012] The rubber gasket is bonded to the side surface of the lens cover facing the lens compression ring, and is provided with a through hole corresponding to the permanent magnet.

[0013] Further, the lens cover and the lens pressing ring are both provided with a counterbore;

[0014] The martensitic stainless steel absorbing pad and the permanent magnet are embedded in the counterbore.

[0015] Further, the martensitic stainless steel absorbing pad and the permanent magnet are both adhesively connected in the counterbore.

[0016] Further, the martensitic stainless steel absorbing pad and the permanent magnet are both in interference fit with the counterbore.

[0017] Further, the lens pressing ring is uniformly distributed with a plurality of permanent magnets in the circumferential direction.

[0018] Further, the permanent magnet is a magnet.

[0019] Further, the first pin shaft and the second pin shaft are installed with an open pin

[0020] Further, the electromagnet assembly comprises an electromagnet, an armature and a compression spring;

[0021] The electromagnet is fixedly installed on the optical equipment;

[0022] One end of the armature is slidingly installed in the electromagnet, and the other end extends out of the electromagnet and is rotationally connected with the lens cover through the second pin shaft;

[0023] The compression spring is located in the electromagnet and abuts against the armature and the electromagnet at both ends.

[0024] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0025] Compared with the traditional manual lens cover, the electric lens cover of the utility model relies on the lever principle, takes the electromagnet as power, and takes the first pin shaft as fulcrum to drive the lens cover to quickly open and close, realizes the electrical quick opening and closing of the lens cover, has simple structure and is easy to realize, and provides a powerful condition for the quick unfolding and unattended operation of the optical equipment. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is an explosion structure schematic view of the electric lens cover of the utility model;

[0027] Figure 2 It is a schematic view of the electric lens cover of the utility model in a closed state;

[0028] Figure 3 It is a schematic view of the electric lens cover of the utility model in an open state.

[0029] Wherein, 1-optical equipment, 2-lens compression ring, 3-electromagnet assembly, 4-lens cover, 5-first pin shaft, 6-second pin shaft, 7- cotter pin, 8-permanent magnet, 9-martensitic stainless steel suction pad, 10-rubber washer. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0031] As Figure 1 The embodiment of the present application provides a quick opening and closing electric lens cover, which is used for optical equipment 1 and includes a lens compression ring 2, an electromagnet assembly 3, a lens cover 4, a martensitic stainless steel suction pad 9 and a permanent magnet 8. Wherein:

[0032] The lens compression ring 2 and the electromagnet assembly 3 are both fixedly installed on the optical equipment 1, as shown in the structure, the electromagnet assembly 3 is fixedly installed on the top of the shell of the optical equipment 1; Figure 1

[0033] The lens compression ring 2 is fixedly installed on one side of the shell of the optical equipment 1 and surrounds the lens, and the lens compression ring 2 provides a mounting basis for the installation of the lens cover 4. The lens compression ring 2 is embedded with the permanent magnet 8 on the side facing the lens cover 4, and the permanent magnet 8 can be a magnet. The lens compression ring 2 is provided with a counterbore for mounting the permanent magnet 8; the permanent magnet 8 is embedded in the counterbore to prevent the permanent magnet 8 from protruding from the outer side surface of the lens compression ring 2, so that the sealing effect between the lens cover 4 and the lens compression ring 2 can be avoided due to the permanent magnet 8 protruding from the outer side surface of the lens compression ring 2. The permanent magnet 8 is embedded in the counterbore of the lens compression ring 2 through adhesion or interference fit, and the adhesion connection and interference fit can improve the reliability of magnetic adsorption.

[0034] ​The lens cover 4 is located outside the lens pressure ring 2, and the top is rotatably connected to the top of the lens pressure ring 2 through the first pin shaft 5 and rotatably connected with the electromagnet assembly 3 through the second pin shaft 6; the second pin shaft 6 is located on the upper side of the first pin shaft 5. The lens cover 4 is embedded with martensitic stainless steel suction pads 9 corresponding to the permanent magnets 8 on the side facing the lens pressure ring 2, and the suction force between the corresponding martensitic stainless steel suction pads 9 and the permanent magnets 8 improves the tightness between the lens cover 4 and the lens pressure ring 2, thereby improving the sealing, reliability and stability between the lens cover 4 and the lens pressure ring 2. The lens cover 4 is also provided with a counterbore for mounting the martensitic stainless steel suction pad 9; the martensitic stainless steel suction pad 9 is embedded in the counterbore of the lens cover 4 and corresponds to the permanent magnets 8 embedded in the lens pressure ring 2, thereby achieving adsorption and improving the sealing of the closure when the lens cover 4 is closed. When the martensitic stainless steel suction pad 9 is embedded in the counterbore of the lens cover 4, in order to prevent the martensitic stainless steel suction pad 9 from falling off, the martensitic stainless steel suction pad 9 can be adhesively connected in the counterbore of the lens cover 4, or can be fixedly installed with interference fit with the counterbore of the lens cover 4. The lens pressure ring 2 is uniformly distributed with a plurality of permanent magnets 8 along the circumference, and correspondingly, the lens cover 4 is uniformly distributed with a plurality of martensitic stainless steel suction pads 9 along the circumference, and the plurality of pairs of corresponding permanent magnets 8 and martensitic stainless steel suction pads 9 uniformly exert magnetic force in the circumferential direction, which can improve the reliability and stability of the lens cover 4 when it is closed.

[0035] The electromagnet assembly 3 is energized to contract and de-energized to expand, and when energized, it controls the lens cover 4 to rotate around the first pin shaft 5 by pulling the second pin shaft 6 to move linearly; the electromagnet assembly 3 includes an electromagnet, an armature and a compression spring; the electromagnet is fixedly installed on the top of the housing of the optical equipment 1; one end of the armature is slidably installed in the electromagnet, the other end extends out of the electromagnet and is rotatably connected with the lens cover 4 through the second pin shaft 6; the compression spring is located in the electromagnet and its two ends abut against the armature and the electromagnet, and the compression spring provides the armature with a tendency to always move towards the side of the lens cover 4.

[0036] The above-mentioned electric lens cover further comprises a rubber gasket 10 and a split pin 7; the rubber gasket 10 is adhesively connected to the surface of the side of the lens cover 4 facing the lens pressure ring 2, and is provided with through holes corresponding to the permanent magnets 8; the rubber gasket 10 adhesively connected to the lens cover 4 can seal when the lens cover 4 is closed, thereby improving the sealing effect between the lens cover 4 and the lens pressure ring 2 and further improving the protection of the lens in the optical equipment 1. The split pin 7 is installed on the first pin shaft 5 and the second pin shaft 6 to ensure the effective connection between the lens cover 4 and the lens pressure ring 2 and the armature, and to prevent the first pin shaft 5 and the second pin shaft 6 from falling off.

[0037] Figure 2is the closed state schematic diagram of the electric lens cover, when the electric lens cover is closed, the electromagnet is in the power-off state, the electromagnetic force of the electromagnet disappears, the attracting force of the electromagnet loses, the inner armature is in the extended state under the elastic force of the compression spring. The extended armature drives the second pin shaft 6 to move horizontally, makes the lens cover 4 rotate from the horizontal state to the vertical state around the first pin shaft 5, under the double action of gravity and permanent magnet 8, cooperates with the electromagnet, the lens cover 4 can effectively adhere to the lens compression ring 2, the rubber gasket 10 is in the micro compression state, realizes the purpose of preventing wind sand, dust and rain.

[0038] Figure 3 is the open state schematic diagram of the electric lens cover, when the electromagnet is powered on, the magnetic force is generated, the magnetic force of the electromagnet makes the armature move towards the electromagnet, at the same time, the compression spring is compressed, the armature pulls the second pin shaft 6 to move in the horizontal direction during the moving process, the second pin shaft 6 drives the lens cover 4 to rotate around the first pin shaft 5, overcomes the gravity of the lens cover 4 and the suction force of the permanent magnet 8, the lens cover 4 rotates 90° and is in the horizontal state, the lens cover 4 is opened. During the use process, as long as the electromagnet is continuously powered on, the lens cover 4 will be in the open state. When the electromagnet is powered off, the compression spring drives the armature to immediately extend, the lens cover 4 quickly closes, and the state is restored. Figure 2

[0039] By using the above electric lens cover, the optical lens or optical window on the optical equipment 1 can be protected.

[0040] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the claims of the utility model and the equivalent technology, the utility model also intends to include these modifications and variations.​

Claims

1. A quick opening and closing electric lens cover for an optical device, characterized by, The electric lens cover comprises a lens pressing ring, an electromagnet assembly, a lens cover, a martensitic stainless steel suction pad and a permanent magnet; The lens pressing ring and the electromagnet assembly are fixedly installed on the optical equipment; The lens cover is located outside the lens pressing ring, and the top thereof is rotationally connected to the top of the lens pressing ring through a first pin shaft and rotationally connected to the electromagnet assembly through a second pin shaft; The electromagnet assembly is contracted by energization and stretched by de-energization, and when energized, the lens cover is rotationally controlled around the first pin shaft by pulling the second pin shaft to move linearly; The lens pressing ring is embedded with a permanent magnet on the side facing the lens cover; The lens cover is embedded with the martensitic stainless steel suction pad corresponding to the permanent magnet on the side facing the lens pressing ring.

2. The motorized lens cover of claim 1, wherein, A rubber gasket is further included; The rubber gasket is bonded to the side surface of the lens cover facing the lens pressing ring, and is provided with a through hole corresponding to the permanent magnet.

3. The motorized lens cover of claim 1, wherein, Both the lens cover and the lens pressing ring are provided with a counterbore. The martensitic stainless steel suction pad and the permanent magnet are embedded in the counterbore.

4. The motorized lens cover of claim 3, wherein, Both the martensitic stainless steel suction pad and the permanent magnet are bonded in the counterbore.

5. The motorized lens cover of claim 3, wherein, Both the martensitic stainless steel suction pad and the permanent magnet are in interference fit with the counterbore.

6. The motorized lens cover of claim 3, wherein, The lens pressing ring is uniformly distributed with a plurality of permanent magnets in the circumferential direction.

7. The motorized lens cover of claim 1, wherein, The permanent magnet is a magnet.

8. The motorized lens cover of claim 1, wherein, The first pin shaft and the second pin shaft are provided with a split pin.

9. The motorized lens cover of any of claims 1-8, wherein, The electromagnet assembly comprises an electromagnet, an armature and a compression spring. The electromagnet is fixedly installed on the optical equipment. One end of the armature is slidingly installed in the electromagnet, and the other end thereof extends out of the electromagnet and is rotationally connected to the lens cover through the second pin shaft. The compression spring is located in the electromagnet and abuts against the armature and the electromagnet at both ends.

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