Split type non-blind area laser protection window

Abstract

The utility model relates to a split type non-blind area laser protection window which is technically characterized in that a window body is a split type window; the split type window is composed of an annular light-emitting window with high light transmittance, an upper cover fixed to the top of the annular light-emitting window through a connecting piece, an annular base connected with the lower end of the annular light-emitting window and an annular elastic clamping ring arranged in the lower end of the annular base, and the upper end face of the annular elastic clamping ring is tightly attached to the lower end face of the annular light-emitting window. And the lower end of the annular light emitting window is fixed in the annular base. According to the utility model, the problems that a traditional laser protection window has a light emitting blind area and is troublesome to assemble are solved, 360-degree blind-area-free laser projection is realized, meanwhile, the use of an adhesive is reduced, and the assembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of laser measuring instrument protection components, in particular to a split-type laser protection window without blind spots. Background Art

[0002] The laser protection window is a light-transmitting protective structure used to protect the laser of the laser measuring instrument from external interference while not affecting the laser light's penetration and projection to a distant location.

[0003] Conventional laser protection windows, see Figure 5 The electronic laser level consists of an upper shell 5, a lower shell 6, four connecting ribs 7 arranged between the upper and lower shells, and four optical glass sheets 8 adhered to the upper and lower shells and between adjacent connecting ribs 7. The upper shell 5, lower shell 6, and four connecting ribs 7 form a plastic bracket, and the four optical glass sheets 8 serve as the light output area. However, the following problems arise during use: 1. The four connecting ribs create an unavoidable blind spot in the light output of the level, affecting the performance of the electronic laser level; 2. The use of glass as the light-transmitting medium requires extensive adhesive bonding during installation, making the assembly process cumbersome and costly. Utility Model Content

[0004] The purpose of this utility model is to provide a split, blind-zone-free laser protection window with a reasonable structure, reliable use, and easy assembly. This solves the problems of traditional laser protection windows with blind spots and difficult assembly, enabling 360° blind-zone-free laser projection. At the same time, it reduces the use of adhesives and eases assembly difficulty.

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

[0006] A split-type laser protection window with no blind spot, the technical key points of which are: the window body is a split window, and the split window consists of an annular light exit window with high light transmittance, an upper cover fixed to the top of the annular light exit window by a connecting piece, an annular base connected to the lower end of the annular light exit window, and an annular elastic clamp built into the lower end of the annular base. The upper end face of the annular elastic clamp fits tightly with the lower end face of the annular light exit window to fix the lower end of the annular light exit window in the annular base.

[0007] In the above-mentioned split-type laser protection window without blind spots, the annular light exit window is a conical window that is narrow at the top and wide at the bottom.

[0008] The above-mentioned split-type laser protection window with no blind spot, the upper end of the annular light exit window is provided with an annular positioning ring formed integrally with it, and the connecting part is a plurality of positioning claws evenly distributed in the middle of the inner top surface of the upper cover, each of the positioning claws passes through the middle of the annular positioning ring and is hooked and fixed to the lower surface of the annular positioning ring.

[0009] The above-mentioned split-type laser protection window with no blind spot, the upper end of the annular light exit window is provided with an annular positioning ring formed integrally with it, the connecting part is composed of a pad and a fixing bolt, the upper surface of the pad is provided with a boss inserted into the middle of the annular positioning ring, and the tip of the fixing bolt passes through the center of the pad and is connected and fixed to the upper cover.

[0010] The above-mentioned split-type laser protection window without blind spots has a horizontal outward positioning edge at the lower end of the annular light exit window, the annular base is buckled on the outside of the horizontal outward positioning edge, and the annular elastic clamp is fixed below the horizontal outward positioning edge, and the inner diameter of the annular elastic clamp is equal to the inner diameter of the horizontal outward positioning edge.

[0011] The above-mentioned split-type laser protection window without blind spots, the upper cover and the annular base are made of engineering plastics, specifically one of ABS plastic, polyamide, polyphenylene sulfide, polybutylene terephthalate, polyphenylene ether, polyimide, polysulfone, polyether ketone and liquid crystal polymer.

[0012] The above-mentioned split-type laser protection window without blind spots, the material of the annular light exit window is one of polymethyl methacrylate, polycarbonate, polystyrene, poly-4-methylpentene, allyl diglycol carbonate, cycloolefin copolymer and optical glass.

[0013] In the above-mentioned split-type laser protection window without blind spots, the material of the annular elastic clamp is one of nitrile rubber, styrene-butadiene rubber, hydrogenated nitrile rubber, EPDM rubber, silicone rubber, fluororubber, chloroprene rubber and perfluororubber.

[0014] The beneficial effects of the utility model are:

[0015] The annular light exit window, with no central support or obstruction, achieves 360° laser projection without blind spots, resolving the blind spot issue with traditional laser protection windows and improving the performance of electronic laser levels. Although it adopts a split structure, it is easy to assemble. The annular light exit window is quickly assembled with connectors to the top cover, and with an annular elastic clamp to the annular base. This solves the problem of traditional laser protection windows requiring adhesive when assembling glass windows, eliminating the tedious post-processing and curing steps required by traditional windows, greatly reducing assembly difficulty and enabling rapid assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the utility model (corresponding to Example 1);

[0018] Figure 3Schematic diagram of the internal structure of the present invention (corresponding to Example 2);

[0019] Figure 4 It is a schematic diagram of the light emitting area of the present invention;

[0020] Figure 5 This is a schematic diagram of the light emission area of a traditional laser protection window.

[0021] In the figure: 1. Upper cover, 2. Annular light exit window, 3. Annular base, 4. Annular elastic clamp, 5. Upper shell, 6. Lower shell, 7. Connecting ribs, 8. Optical glass, 9. Pad, 10. Fixing bolts, 11. Laser generator module. DETAILED DESCRIPTION

[0022] The utility model is described in detail according to the accompanying drawings. Example

[0023] like Figure 1 、 Figure 2 、 Figure 4 As shown, the split-type laser protection window without blind spots, the window body is a split-type window.

[0024] The split window consists of an annular light exit window 2 with high light transmittance, an upper cover 1 fixed to the top of the annular light exit window 2 by a connector, an annular base 3 connected to the lower end of the annular light exit window 2, and an annular elastic collar 4 built into the lower end of the annular base 3. The upper end surface of the annular elastic collar 4 fits tightly against the lower end surface of the annular light exit window 2 to secure the lower end of the annular light exit window 2 to the annular base 3.

[0025] In this embodiment, the annular light exit window 2 is a conical window that is narrow at the top and wide at the bottom. The upper end of the annular light exit window 2 is provided with an annular positioning ring 201 formed integrally therewith. The connecting member is four positioning claws 101 evenly distributed in the middle of the inner top surface of the upper cover 1, and each of the positioning claws 101 passes through the middle of the annular positioning ring 201 and is hooked and fixed to the lower surface of the annular positioning ring 201. The lower end of the annular light exit window 2 is provided with a horizontal outward positioning edge 202, and the annular base 3 is buckled on the outside of the horizontal outward positioning edge 202. The annular elastic clamp 4 is fixed below the horizontal outward positioning edge 202, and the inner diameter of the annular elastic clamp 4 is equal to the inner diameter of the horizontal outward positioning edge 202.

[0026] The upper cover 1 and annular base 3 are preferably made of a material with excellent mechanical and thermal properties, high elasticity, and toughness. In this embodiment, ABS plastic is used. The wavelength transmittance range of the annular light exit window 2 is at least 400nm-760nm, which is from blue to red light. The annular light exit window 2 is preferably made of a material with high light transmittance, excellent mechanical and thermal properties, high elasticity, and toughness. In this embodiment, polymethyl methacrylate is used. The annular elastic retaining ring 4 is made of nitrile rubber in this embodiment.

[0027] When in use, the laser generator module 11 is assembled inside the utility model, and the annular light exit window 2 realizes 360° laser projection without blind spots. Figure 4 . Example

[0028] like Figure 1 、 Figure 3 、 Figure 4 As shown, the split-type laser protection window without blind spots has a split window body, which consists of an annular light exit window 2, an upper cover 1 fixed to the top of the annular light exit window 2 by a connecting piece, an annular base 3 connected to the lower end of the annular light exit window 2, and an annular elastic clamp 4 built into the lower end of the annular base 3.

[0029] In this embodiment, the upper end of the annular light exit window 2 is provided with an annular positioning ring 201 integrally formed therewith. The connecting member comprises a backing plate 9 and a fixing bolt 10. The upper surface of the backing plate 9 is provided with a boss that is inserted into the middle of the annular positioning ring 201. The tip of the fixing bolt 10 passes through the center of the backing plate 9 and is fixed to the upper cover 1. The backing plate 9 is circular, and its lower surface is provided with a countersunk stud hole corresponding to the fixing bolt 10.

[0030] The upper cover 1 and annular base 3 are both made of engineering plastics, including polyamide, polyphenylene sulfide, polybutylene terephthalate, polyphenylene oxide, polyimide, polysulfone, polyetherketone, or liquid crystal polymer. The annular light exit window 2 can be made of polycarbonate, polystyrene, poly-4-methylpentene, allyl diglycol carbonate, cycloolefin copolymer, or optical glass. The annular elastic collar 4 can be made of elastic SBR (styrene-butadiene rubber), HNBR (hydrogenated nitrile butadiene rubber), EPDM (ethylene propylene diene monomer), SILICONE (silicone), VITON (fluorocarbon rubber), CR (chloroprene rubber), or FFKM (perfluoroelastomer).

[0031] Other details are the same as in Example 1.

[0032] The above detailed description of the embodiments of the present invention is intended to be a preferred embodiment of the present invention and should not be construed as limiting the scope of implementation of the present invention. Any equivalent changes and improvements made within the scope of the present invention shall still fall within the scope of this patent.

Claims

1. A split laser protection window without blind spots, characterized by: The window body is a split window, which consists of an annular light-emitting window with high light transmittance, an upper cover fixed to the top of the annular light-emitting window by a connecting piece, an annular base connected to the lower end of the annular light-emitting window, and an annular elastic clamp built into the lower end of the annular base. The upper end surface of the annular elastic clamp fits tightly with the lower end surface of the annular light-emitting window to fix the lower end of the annular light-emitting window in the annular base.

2. The split-type laser protection window without blind spots according to claim 1 is characterized in that: The annular light exit window is a conical window that is narrow at the top and wide at the bottom.

3. The split-type laser protection window without blind spots according to claim 1 is characterized in that: The upper end of the annular light exit window is provided with an annular positioning ring formed integrally therewith, and the connecting member is a plurality of positioning claws evenly distributed in the middle of the inner top surface of the upper cover, each of the positioning claws passes through the middle of the annular positioning ring and is hooked and fixed to the lower surface of the annular positioning ring.

4. The split-type laser protection window without blind spots according to claim 1 is characterized in that: The upper end of the annular light exit window is provided with an annular positioning ring integrally formed therewith, and the connecting part is composed of a pad and a fixing bolt. The upper surface of the pad is provided with a boss inserted into the middle of the annular positioning ring, and the tip of the fixing bolt passes through the center of the pad and is connected and fixed to the upper cover.

5. The split-type laser protection window without blind spots according to claim 1 is characterized in that: A horizontal outward positioning edge is provided at the lower end of the annular light exit window, the annular base is buckled on the outside of the horizontal outward positioning edge, the annular elastic clamp is fixed below the horizontal outward positioning edge, and the inner diameter of the annular elastic clamp is equal to the inner diameter of the horizontal outward positioning edge.

6. The split-type laser protection window without blind spots according to claim 1 is characterized in that: The upper cover and the annular base are made of engineering plastics, specifically one of ABS plastic, polyamide, polyphenylene sulfide, polybutylene terephthalate, polyphenylene oxide, polyimide, polysulfone, polyether ketone and liquid crystal polymer.

7. The split-type laser protection window without blind spots according to claim 1 is characterized in that: The material of the annular light exit window is one of polymethyl methacrylate, polycarbonate, polystyrene, poly-4-methylpentene, allyl diglycol carbonate, cycloolefin copolymer and optical glass.

8. The split-type laser protection window without blind spots according to claim 1 is characterized in that: The material of the annular elastic clamp is one of nitrile rubber, styrene-butadiene rubber, hydrogenated nitrile rubber, EPDM rubber, silicone rubber, fluorine rubber, chloroprene rubber and perfluororubber.

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