Conical mirror reflection module assembly of laser demarcation device

Abstract

A transparent tube is provided with a middle cavity penetrating through a body of the transparent tube, a conical mirror comprises a conical surface portion, an extending portion and a bottom portion which are integrally formed and sequentially connected, and the extending portion and the bottom portion are both of a cylindrical structure and are coaxially arranged. The base comprises a bottom plate and a positioning ring, a positioning groove is formed between the bottom plate and the positioning ring, the bottom is embedded into the positioning groove to form interference abutting connection, and the portion, located on the outer side of the positioning ring, of the bottom plate abuts against the bottom end of the transparent tube so that the conical mirror can be embedded into the middle cavity. The outer side wall of the positioning ring abuts against the inner side wall of the transparent tube in an interference mode. The conical mirror can completely cover the base, no gap is formed between the conical mirror and the inner wall of the transparent tube, the action range of the conical mirror during light reflection can be widened, and the installation stability is improved through interference installation among the transparent tube, the positioning ring and the conical mirror.

Description

Technical Field

[0001] The utility model relates to the field of conical mirrors, in particular to a conical mirror reflection module component of a laser line projector. Background Art

[0002] After being processed by grinding or other processes, diamond can be formed into a structure with a conical surface and used in conical mirrors, such as laser line projectors and other equipment.

[0003] In the prior art, such as a metal laser reflector, laser module and line projector with application number 202120315525.X, a metal laser reflector with a conical surface is used in the line projector, which discloses that the end of the quartz tube is provided with a mirror sleeve for pressing the mirror body on the end of the quartz tube, and the inner diameter of the mirror sleeve is equal to the outer diameter of the flange. During installation, when the reflective cone of the mirror body is placed in the quartz tube and then covered with the mirror sleeve, the mirror sleeve and the quartz tube are fixed by bonding for easy disassembly, and the mirror body can be fixed on the quartz tube under the limiting effect of the mirror sleeve. It has the following problems: on the one hand, there is a gap between the mirror body and the inner wall of the quartz tube, resulting in the mirror body not being able to completely cover the lateral space in the quartz tube, resulting in space waste; on the other hand, the bonding and fixing method is not conducive to rapid insertion. Utility Model Content

[0004] The purpose of the utility model is to provide a conical mirror reflection module assembly for a laser line projector, in which the conical mirror can completely cover the base, and no gap is formed between the conical mirror and the inner wall of a transparent tube, thereby increasing the range of the conical mirror when reflecting light. Moreover, the interference fit between the transparent tube, the positioning ring and the conical mirror can ensure the installation stability among the three, thereby ensuring that the conical mirror is firmly installed on the transparent tube.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a conical mirror reflection module component of a laser line projector, comprising:

[0006] A transparent tube having a lumen extending through the body thereof,

[0007] A conical mirror, comprising a conical surface portion, an extension portion and a bottom portion which are integrally formed and sequentially connected, wherein the extension portion and the bottom portion are both cylindrical structures and are coaxially arranged, the diameter of the extension portion is equal to the diameter of the bottom end surface of the conical surface portion, and the diameter of the bottom portion is smaller than the diameter of the extension portion,

[0008] The base includes a bottom plate and a positioning ring arranged on the bottom plate, a positioning groove is formed between the two, the bottom is embedded in the positioning groove to form an interference fit, the outer side of the positioning ring on the bottom plate abuts against the bottom end of the transparent tube to embed the conical mirror into the middle cavity, and the outer side wall of the positioning ring is in interference fit with the inner side wall of the transparent tube.

[0009] As a further optimization, the inclination angle of the conical surface portion is α, preferably 40°≤α≤50°.

[0010] As a further optimization, an upper hole penetrating through the body of the conical mirror is provided on the central axis thereof, and a lower hole penetrating through the body of the conical mirror and communicating with the upper hole is provided on the bottom plate.

[0011] As a further optimization, the base plate is a cylindrical structure and is coaxially arranged with the positioning ring.

[0012] As a further optimization, the diameter of the bottom plate is equal to the outer diameter of the transparent tube.

[0013] As a further optimization, a guiding slope is provided on one end of the peripheral side wall of the bottom away from the extension portion to facilitate its embedding into the positioning ring.

[0014] As a further optimization, a plurality of expansion joints are provided on the positioning ring in an axisymmetric manner, so that the embedding action is easier to achieve.

[0015] As a further optimization, the expansion joint horizontally penetrates the positioning ring; the expansion joint extends to the lower part of the positioning ring.

[0016] As a further optimization, the base is made of a deformable material, which can achieve an interference fit effect while ensuring a certain strength.

[0017] As a further optimization, the transparent tube is a quartz tube; the conical mirror is made of diamond or metal.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The conical mirror can completely cover the base, and no gap will be formed between the conical mirror and the inner wall of the transparent tube, which can increase the range of the conical mirror when reflecting light;

[0020] 2. The interference fit installation between the transparent tube and the positioning ring, as well as the interference fit installation between the bottom and the positioning ring can ensure the installation stability among the three, and ensure that the conical mirror can be stably installed on the transparent tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded view of the utility model.

[0022] Figure 2 It is the installation diagram of the utility model.

[0023] Figure 3 This is a structural diagram of the conical mirror of the present utility model.

[0024] Figure 4 This is a structural diagram of the conical mirror of the utility model from another side viewing angle.

[0025] Figure 5 This is a structural diagram of another embodiment of the present utility model.

[0026] Figure 6 It is a structural diagram of another embodiment of the base of the utility model. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] like Figures 1 to 4 As shown, a conical mirror reflection module assembly of a laser line projector includes a transparent tube 1, a conical mirror 2 and a base 3. The transparent tube 1 is a quartz tube, which has a middle cavity 10 running through its body. The conical mirror 2 is preferably made of polished diamond material, and includes a conical surface portion 21, an extension portion 22 and a bottom portion 23 that are integrally formed and sequentially connected. The extension portion 22 and the bottom portion 23 are both cylindrical structures and are coaxially arranged. The diameter of the extension portion 22 is equal to the diameter of the bottom end surface of the conical surface portion 21, and both match the inner diameter of the middle cavity 10. The diameter of the bottom 23 is smaller than the diameter of the extension portion 22. The base 3 is made of a deformable material, such as plastic with a certain hardness and strength. It includes a bottom plate 32 and a positioning ring 31 arranged on the bottom plate 32. A positioning groove 30 is formed between the two. The bottom 23 is completely embedded in the positioning groove 30 and forms an interference fit with the positioning ring 31. The outer side of the positioning ring 31 on the bottom plate 32 abuts against the bottom end of the transparent tube 1 to embed the conical mirror 1 into the middle cavity 10, and the outer side wall of the positioning ring 31 is in interference fit with the inner side wall of the transparent tube 1.

[0029] In the utility model, the conical mirror 2 is firstly embedded into the positioning groove 30 through its bottom 23 and is in interference fit with the positioning ring 31 to fix the conical mirror 2 on the base 3. At this time, the portion of the extension portion 22 close to the bottom 23 and protruding horizontally from the bottom 23 abuts against the positioning ring 31. Then, the conical mirror 2 is extended into the middle cavity 10, and the outer side wall of the positioning ring 31 is in interference fit with the side wall of the middle cavity 10, until the transparent tube 1 abuts against the bottom plate 32, and the installation of the conical mirror reflection module assembly is completed. In this installation mode, on the one hand, the base 3 which plays a positioning role for the conical mirror 2 can be completely covered by the conical mirror 2 (the conical surface portion 21 and the extension portion 22) after the conical mirror 2 extends into the middle cavity 10, and no gap is formed between the conical mirror 2 and the inner wall of the transparent tube 1, which can increase the effective range of the conical mirror 2 when reflecting light. On the other hand, the installation stability between the transparent tube 1 and the positioning ring 31, as well as the bottom 23 and the positioning ring 31 can be guaranteed, thereby ensuring that the conical mirror 2 can be stably installed on the transparent tube 1.

[0030] In addition, by providing an extension portion 22 with a certain thickness to connect the conical surface portion 21 and the bottom portion 23, it is possible to avoid the situation where the bottom portion of the conical surface portion 21 is easily damaged due to the thin-walled nature of the bottom portion when the conical surface portion 21 is simply connected to the bottom portion 23.

[0031] The inclination angle of the tapered surface portion 21 is α, preferably 40°≤α≤50°.

[0032] like Figure 5 As shown, in another embodiment of the utility model, an upper hole 20 penetrating the main body of the conical mirror 2 can be provided on the central axis thereof, and a lower hole 30 penetrating the main body thereof and connected to the upper hole 20 can be provided on the bottom plate 3. When light is irradiated to the center position of the transparent tube 1, the light can pass through the upper hole 20 and the lower hole 30 to realize the transmission function of the conical mirror reflection module assembly.

[0033] The bottom plate 32 is a cylindrical structure and is coaxially arranged with the positioning ring 31 to form a structure matching the transparent tube 1 .

[0034] The diameter of the bottom plate 32 is equal to the outer diameter of the transparent tube 1, so that a smooth transition between the side walls of the two can be achieved.

[0035] like Figure 6 As shown, a guide slope 231 is provided on one end of the side wall of the bottom 23 away from the extension portion 22 , and the conical mirror 2 can be smoothly installed on the base 3 by using the guide slope 231 ; of course, the guide slope can also be set on the positioning ring 31 .

[0036] Furthermore, a plurality of expansion joints 311 can be axially symmetrically provided on the positioning ring 31, and the expansion joints 311 can be used to easily realize the installation of the conical mirror 2 or the installation of the base 3 in the middle cavity 10. Moreover, after the positioning ring 31 is squeezed and the expansion joints become smaller or disappear, the interference fit between the conical mirror 2 and the transparent tube 1 can also be used to stably connect the three.

[0037] More specifically, the expansion joint 311 horizontally penetrates the positioning ring 31, and extends to the lower part of the positioning ring 31, but is not connected to the bottom plate 32, that is, the conical mirror 2 and the transparent tube 1 can be relatively easily embedded and clamped through the expansion joint 311 in the upper part of the positioning ring 31, and the connection stability of the conical mirror 2 and the transparent tube 1 is ensured by the continuous lower part of the positioning ring 31.

[0038] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A conical mirror reflection module assembly of a laser line projector, characterized in that: include: A transparent tube having a lumen extending through the body thereof, A conical mirror, comprising a conical surface portion, an extension portion and a bottom portion which are integrally formed and sequentially connected, wherein the extension portion and the bottom portion are both cylindrical structures and are coaxially arranged, the diameter of the extension portion is equal to the diameter of the bottom end surface of the conical surface portion, and the diameter of the bottom portion is smaller than the diameter of the extension portion, The base includes a bottom plate and a positioning ring arranged on the bottom plate, a positioning groove is formed between the two, the bottom is embedded in the positioning groove to form an interference fit, the outer side of the positioning ring on the bottom plate abuts against the bottom end of the transparent tube to embed the conical mirror into the middle cavity, and the outer side wall of the positioning ring is in interference fit with the inner side wall of the transparent tube.

2. The conical mirror reflection module assembly of the laser line projector according to claim 1, characterized in that: The inclination angle of the conical surface portion is α, 40°≤α≤50°.

3. The conical mirror reflection module assembly of the laser line projector according to claim 1, characterized in that: An upper hole penetrating through the body of the conical mirror is arranged on the central axis of the conical mirror, and a lower hole penetrating through the body of the conical mirror and communicating with the upper hole is arranged on the bottom plate.

4. The conical mirror reflection module assembly of the laser line projector according to claim 1, characterized in that: The bottom plate is a cylindrical structure and is coaxially arranged with the positioning ring.

5. The conical mirror reflection module assembly of the laser line projector according to claim 4, characterized in that: The diameter of the bottom plate is equal to the outer diameter of the transparent tube.

6. The conical mirror reflection module assembly of the laser line projector according to claim 1, characterized in that: A guiding inclined surface is arranged on one end of the peripheral side wall of the bottom away from the extending portion.

7. The conical mirror reflection module assembly of the laser line projector according to claim 1, characterized in that: The positioning ring is provided with a plurality of expansion joints in an axisymmetric manner.

8. The conical mirror reflection module assembly of the laser line projector according to claim 7, characterized in that: The expansion joint horizontally penetrates the positioning ring; the expansion joint extends to the lower part of the positioning ring.

9. The conical mirror reflection module assembly of the laser line projector according to claim 1, 7 or 8, characterized in that: The base is made of deformable material.

10. The conical mirror reflection module assembly of the laser line projector according to claim 1, characterized in that: The transparent tube is a quartz tube; the conical mirror is made of diamond or metal.

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