Integrated non-blind area laser protection window

Abstract

The utility model relates to an integrated non-blind area laser protection window, which comprises a window body, and has the technical key points that the window body is an integrated plastic window; the integrated plastic window is composed of a rigid plastic upper cover, a rigid plastic base and an optical plastic annular light emitting area which is located between the rigid plastic upper cover and the rigid plastic base and has high light transmittance. The laser protection window solves the problems that a traditional laser protection window has a light emitting blind area, is troublesome to assemble and is relatively high in cost, 360-degree blind-area-free laser projection is achieved, and meanwhile the integrated plastic structure is achieved through the injection molding technology, so that the assembling difficulty is reduced, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of protection components for laser measuring instruments, and particularly relates to an integrated laser protection window without blind areas. Background Art

[0002] A laser protection window is a light-transmitting protection structure used to protect the laser of a laser measuring instrument from external interference, and at the same time, it does not affect the laser light of the laser to penetrate and project into the distance.

[0003] For a traditional laser protection window, see Figure 7 , which is composed of an upper housing 5, a lower housing 6, four connecting rib columns 7 arranged between the upper and lower housings, and four pieces of optical glass 8 adhered between the upper and lower housings and adjacent connecting rib columns 7. The upper housing 5, the lower housing 6 and the four connecting rib columns 7 form a plastic bracket, and the four pieces of optical glass 8 are the light-emitting areas. However, when in use, the following problems exist: 1. The four connecting rib columns actually cause inevitable light-emitting blind areas of the level, affecting the use performance of the electronic laser level; 2. The assembly process is relatively troublesome, and the production and assembly costs are high; 3. The optical glass is composed of four pieces of optical glass glued together, with high manufacturing costs and low reliability. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an integrated laser protection window without blind areas with reasonable structure and reliable use, solve the problems of light-emitting blind areas, troublesome assembly and relatively high costs existing in the traditional laser protection window, realize 360° non-blind-area laser projection, and at the same time, use an integrated plastic structure realized by an injection molding process to reduce the assembly difficulty and lower the manufacturing cost.

[0005] The technical solution of the utility model is as follows:

[0006] An integrated laser protection window without blind areas includes a window body. The technical key point is that the window body is an integrated plastic window, and the integrated plastic window is composed of a hard plastic upper cover, a hard plastic base, and an optical plastic annular light-emitting area with high light transmittance located between the hard plastic upper cover and the hard plastic base.

[0007] For the above-mentioned integrated laser protection window without blind areas, the materials of the hard plastic upper cover and the hard plastic base are engineering plastics, specifically one of ABS plastic, polyamide, polyphenylene sulfide, polybutylene terephthalate, polyphenylene ether, polyimide, polysulfone, polyether ketone, and liquid crystal polymer.

[0008] For the above-mentioned integrated laser protection window without blind areas, the material of the optical plastic annular light-emitting area is one of polymethyl methacrylate, polycarbonate, polystyrene, poly-4-methylpentene, allyl diglycol carbonate, and cycloolefin copolymer.

[0009] The above-mentioned integrated blind - free laser protection window, wherein the optical plastic annular light - emitting area is in the shape of a cuboid, a cylinder, a quadrangular pyramid with a narrow upper part and a wide lower part, or a cone.

[0010] The above - mentioned integrated blind - free laser protection window, wherein an upper plastic injection - molding joint and connection forming structure for cooperating with the hard plastic upper cover is provided at the upper end of the optical plastic annular light - emitting area, and a lower plastic injection - molding joint and connection forming structure for cooperating with the hard plastic base is provided at the lower end of the optical plastic annular light - emitting area.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. The adopted optical plastic annular light - emitting area is an integrated surrounding structure without support and occlusion in the middle, achieving the effect of 360° blind - free laser projection, solving the problem of light - emitting blind areas existing in traditional laser protection windows, and being beneficial to improving the use performance of laser measuring instruments.

[0013] 2. During production, first complete the injection molding of the optical plastic annular light - emitting area, and then injection - mold the hard plastic upper cover and the hard plastic base at the upper and lower ends of the optical plastic annular light - emitting area respectively, ensuring the use strength of the protection window. The production process is simple, solving the problems of troublesome assembly and relatively high cost of traditional laser protection windows. It does not require the cumbersome mechanical structure and post - processing of gluing fixation of traditional windows, greatly reducing the assembly difficulty and lowering the production cost. Description of the Drawings

[0014] Figure 1 is the external structure schematic diagram of the present utility model (corresponding to Embodiment 1);

[0015] Figure 2 is the external structure schematic diagram of the present utility model (corresponding to Embodiment 2);

[0016] Figure 3 is the internal structure schematic diagram of the present utility model (corresponding to Embodiment 1, with the built - in laser generator module 4);

[0017] Figure 4 is the internal structure schematic diagram of the present utility model (corresponding to Embodiment 2, with the built - in laser generator module 4);

[0018] Figure 5 is the schematic diagram of the light - emitting area of the present utility model (corresponding to Embodiment 1);

[0019] Figure 6 is the schematic diagram of the light - emitting area of the present utility model (corresponding to Embodiment 2);

[0020] Figure 7 is the schematic diagram of the light - emitting area of a traditional laser protection window. Detailed Implementation Manner

[0021] The present utility model will be described in detail with reference to the accompanying drawings of the specification. Embodiment

[0022] As Figure 1 、 Figure 3 、 Figure 5 shown, the integrated blind - area - free laser - protection window includes a window body, and the window body is an integrated plastic window. The integrated plastic window is composed of a hard - plastic upper cover 1, a hard - plastic base 3, and an optical - plastic annular light - emitting area 2 with a high light transmittance located between the hard - plastic upper cover 1 and the hard - plastic base 3.

[0023] The materials of the hard - plastic upper cover 1 and the hard - plastic base 3 are preferably materials with excellent mechanical properties and thermal properties, high elasticity and toughness. In this embodiment, ABS plastic is used. The material of the optical - plastic annular light - emitting area 2 is preferably a material with a high light transmittance, excellent mechanical properties and thermal properties, high elasticity and toughness. In this embodiment, polymethyl methacrylate is used. The optical - plastic annular light - emitting area 2 is in the shape of a frustum of a pyramid with a narrower upper part and a wider lower part. The upper end of the optical - plastic annular light - emitting area 2 is provided with an upper - injection - plastic - combined connection and molding structure 201 for cooperating with the hard - plastic upper cover 1, and the lower end of the optical - plastic annular light - emitting area 2 is provided with a lower - injection - plastic - combined connection and molding structure 202 for cooperating with the hard - plastic base 3.

[0024] Manufacturing process:

[0025] First, the injection molding of the optical - plastic annular light - emitting area 2, including the upper and lower injection - plastic - combined connection and molding structures, is completed using a mold; then, the hard - plastic upper cover 1 and the hard - plastic base 3 are respectively injection - molded at the upper and lower ends of the optical - plastic annular light - emitting area 2 using a mold.

[0026] During use, the laser - generator module 4 is assembled inside the present utility model, and the optical - plastic annular light - emitting area 2 realizes 360° blind - area - free laser projection. Embodiment

[0027] As Figure 2 、 Figure 4 、 Figure 6 shown, for the integrated blind - area - free laser - protection window, wherein, the materials of the hard - plastic upper cover 1 and the hard - plastic base 3 are both engineering - plastic materials, and can be one of polyamide, polyphenylene sulfide, polybutylene terephthalate, polyphenylene ether, polyimide, polysulfone, polyether ketone, liquid - crystal polymer. The material of the optical - plastic annular light - emitting area 2 is one of polycarbonate, polystyrene, poly - 4 - methyl - 1 - pentene, allyl diglycol carbonate, cycloolefin copolymer. The optical - plastic annular light - emitting area 2 is in the shape of a cone.

[0028] Others are the same as Embodiment 1.

[0029] The embodiments of the present utility model have been described in detail above, but the above content is only the preferred embodiments of the present utility model and cannot be considered as limiting the scope of implementation of the present utility model. All equivalent changes and improvements made within the scope of the creation of the present utility model shall still fall within the scope covered by this patent.

Claims

1. An integrated laser protection window without blind spots, comprising a window body, characterized in that: The window body is an integrally formed plastic window, which is composed of a hard plastic upper cover, a hard plastic base, and an optical plastic annular light-emitting area with a high light transmittance located between the hard plastic upper cover and the hard plastic base.

2. The integrated blind - free laser - protection viewing window according to claim 1, characterized in that: The materials of the hard plastic upper cover and the hard plastic base are engineering plastics, specifically one of ABS plastic, polyamide, polyphenylene sulfide, polybutylene terephthalate, polyphenylene ether, polyimide, polysulfone, polyether ketone, and liquid crystal polymer.

3. The integrated blind - free laser protection window according to claim 1, characterized in that: The material of the optical plastic annular light-emitting area is one of polymethyl methacrylate, polycarbonate, polystyrene, poly-4-methylpentene, allyl diglycol carbonate, and cycloolefin copolymer.

4. The integrated blind - free laser - protection viewing window according to claim 1, wherein: The optical plastic annular light-emitting area is in the shape of a cuboid, a cylinder, a quadrangular pyramid with a narrow upper part and a wide lower part, or a cone.

5. The integrated blind - free laser - protective window according to claim 1, characterized in that: An upper injection plastic bonding and joining forming structure matching with the hard plastic upper cover is provided at the upper end of the optical plastic annular light-emitting area, and a lower injection plastic bonding and joining forming structure matching with the hard plastic base is provided at the lower end of the optical plastic annular light-emitting area.

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