Portable projection indicator for laser warning

Abstract

The invention belongs to the technical field of traffic warning equipment, and particularly relates to a portable projection indicator for laser warning, which comprises a shell assembly, a grating assembly, a laser assembly, a control assembly and a lithium battery, the bearing seat is used for bearing and mounting all elements inside the portable projection indicator; the grating assembly comprises a grating mounting frame and a grating lens; the laser assembly comprises an LD laser tube and a focus lens, and the LD laser tube is connected with a driving circuit board; the control assembly comprises a control circuit board; the invention provides a portable projection indicator for laser warning, and aims to integrate a laser component, a grating component, intelligent control power supply and sealing protection through an integrated portable structure in segmented threaded connection, so that the field warning effects of high visibility, quick maneuvering deployment and flexible switching of warning contents in a severe environment are realized. And the disposal efficiency and the personnel safety are improved.

Description

Technical Field

[0001] This invention belongs to the technical field of traffic warning equipment, specifically relating to a portable projection indicator for laser warning. Background Technology

[0002] Traditional road signs and warning lights have poor visibility at night and in adverse weather conditions such as rain, snow, and fog. Information is easily obscured or becomes invalid, leading to untimely warnings during patrols, accident handling, and traffic control, as well as insufficient driver attention, increasing accident risks and reducing response efficiency. Furthermore, traditional warning equipment is bulky, complex to install and deploy, and lacks mobility, making it difficult to quickly deploy and flexibly adjust in emergencies, thus affecting response speed. Additionally, the display content of fixed signs / lights is inconvenient to update and cannot be adjusted in real time according to changes in the situation. If manual adjustments are required, it will increase manpower and time costs, limiting police flexibility. Moreover, at construction sites and accident scenes, traditional equipment has limited impact resistance and personnel protection capabilities, making it difficult to form an effective safety perimeter, and increasing the safety risks for personnel on site.

[0003] The aforementioned pain points have collectively driven the research and development and application of portable laser projection warning equipment to improve visibility, mobile deployment, real-time updates, and on-site safety assurance capabilities. Summary of the Invention

[0004] In view of this, the present invention provides a portable projection indicator for laser warning, which aims to integrate laser components, grating components, intelligent control power supply and sealing protection through an integrated portable structure with segmented threaded connections, so as to achieve a highly visible, rapidly deployable and flexibly switchable on-site warning effect in harsh environments, and improve handling efficiency and personnel safety.

[0005] A portable projection indicator for laser warning, comprising:

[0006] A housing assembly for housing and mounting various components inside a portable projection indicator. The housing assembly includes a first housing, a second housing, a third housing, and a fourth housing. The first housing, the second housing, the third housing, and the fourth housing are connected end to end to form a columnar structure. The first housing has a stepped first mounting hole at its end.

[0007] A grating assembly is disposed on one side of the first housing. The grating assembly includes a grating mounting frame, which is composed of an integrally formed mounting part and a connecting part. A stepped first through hole is opened inside the grating mounting frame, and the first through hole passes through both the mounting part and the connecting part. The connecting part is threadedly connected to the first mounting hole. In addition, the grating assembly also includes a grating lens disposed in the first through hole.

[0008] A laser assembly is disposed inside the second housing. The laser assembly includes a heat dissipation pipe that mates with the inner wall of the second housing. The heat dissipation pipe has a stepped second through hole inside. A second fixing ring is disposed inside the second through hole. An LD laser tube and a focusing lens are disposed inside the second fixing ring. The focusing lens is located on the side of the LD laser tube closer to the grating assembly. In addition, a drive circuit board is disposed inside the heat dissipation pipe. The drive circuit board is connected to the wires of the LD laser tube and is used to provide a constant voltage and constant current source for the LD laser tube. The drive circuit board is fixed inside the heat dissipation pipe by a third fixing ring.

[0009] The control component is also located inside the second housing, and is situated on the side of the laser component away from the grating component. The control component includes a control circuit board and a fourth fixing ring. The control circuit board is fitted onto a pre-set step inside the second housing. The control circuit board is wired to the drive circuit board. The fourth fixing ring is threaded into the interior of the second housing. A connecting spring is provided in the middle of the side of the control circuit board away from the laser component. The connecting spring passes through the fourth fixing ring and extends into the third housing.

[0010] A lithium battery is housed within a third housing. When the third housing and the second housing are connected, the positive electrode of the lithium battery adheres to and presses against the connecting spring. The connecting spring and the negative electrode connector located at the bottom of the negative electrode of the lithium battery together form a charging and discharging structure for charging and discharging the lithium battery.

[0011] Preferably, in the housing assembly, the first housing, the second housing, the third housing, and the fourth housing are connected end to end by a threaded connection to form a columnar structure. A first sealing ring is provided at the connection positions of the first housing and the second housing, the second housing and the third housing, and the third housing and the fourth housing.

[0012] Preferably, the grating assembly further includes a second sealing ring disposed on one side of the grating lens, and a first fixing ring disposed on one side of the second sealing ring. The first fixing ring is threadedly connected to the first through hole, and the second sealing ring and the grating lens are pressed into the stepped first through hole by the threaded engagement of the first fixing ring and the first through hole.

[0013] Preferably, the portable projection indicator further includes a protective component, which is disposed inside the first housing. Specifically, the protective component includes a window glass disposed in a first mounting hole, a third sealing ring on one side of the window glass, and a fifth fixing ring on one side of the third sealing ring. The fifth fixing ring is threadedly connected to the first mounting hole, and the third sealing ring and the window glass are pressed into the stepped first mounting hole through the threaded engagement of the fifth fixing ring and the first mounting hole.

[0014] Preferably, in the laser assembly, the heat sink is made of copper.

[0015] Preferably, the control component further includes a power control switch and a charging port disposed on the side wall of the second housing, and the power control switch and the charging port are respectively connected to the control circuit board wires. The power control switch is used to control the working state of the portable projection indicator, and the charging port is used to charge the lithium battery of the portable projection indicator. In addition, the charging port is also provided with a sealing gasket, which is used to seal and protect the charging port when it is not in use.

[0016] Preferably, in the control component, the control circuit board has preset control rules, which are used to control the LD laser tube to turn on, turn off, and remain on or flash.

[0017] Preferably, the portable projection indicator further includes a window breaker, which is composed of an integrally formed mating part and a conical part. The mating part is threadedly connected to a second mounting hole pre-set on the negative terminal connector. The tip of the conical part is away from the lithium battery and extends out of the third housing. In this case, when the third housing is mated with the fourth housing, the conical part is covered inside the fourth housing.

[0018] The beneficial effects of this invention are as follows:

[0019] In general, the portable projection indicator provided by this invention features a structure of "cylindrical segmented housing + optical projection + integrated power supply and control + sealed protection." The first, second, third, and fourth housings are sequentially threaded together to form a compact cylindrical body, which is small in size, easy to carry, and can be quickly deployed, solving the problems of bulky, complex installation, and poor mobility of traditional equipment. The laser component consists of an LD laser tube, a focusing lens, a driver circuit board, and a copper heat sink. Combined with a grating mounting bracket and grating lenses, it achieves high brightness and clear projection over long distances, improving performance at night and... Visibility is enhanced in adverse environments such as rain, snow, and fog; the control circuit board has preset control rules, enabling switching between on / off, constant light, and flashing modes, and combined with charging port and lithium battery power, it supports rapid on-site adjustment of warning methods, reducing the manpower and time costs of information updates; multiple sealing rings, along with window glass and charging port sealing gaskets, provide waterproof and dustproof protection, improving environmental adaptability and reliability; the window breaker is integrated into the rear of the portable projection indicator, serving as an emergency response function in case of sudden alarms, and the projected warnings reduce the exposure of personnel in traffic, improving on-site safety. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is an exploded view of the overall structure of the present invention;

[0023] Figure 3 This is a cross-sectional schematic diagram of a partial structure in this invention;

[0024] Figure 4 This is a cross-sectional schematic diagram of the mating structure of the window breaker in this invention;

[0025] Figure 5 for Figure 3 Enlarged view of point A in the middle. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] In a portable projection indicator for laser warning provided in this application, such as Figure 1-2 As shown, it includes: housing assembly 1, grating assembly 2, laser assembly 3, control assembly 4, and lithium battery 7, specifically:

[0029] like Figure 1-2 As shown, the housing assembly 1 is used to carry and install the various components inside the portable projection indicator. The housing assembly 1 includes a first housing 101, a second housing 102, a third housing 103 and a fourth housing 104, and the first housing 101, the second housing 102, the third housing 103 and the fourth housing 104 are connected end to end to form a columnar structure.

[0030] In a more preferred embodiment, the first housing 101, the second housing 102, the third housing 103 and the fourth housing 104 are connected end to end by a threaded connection to form a columnar structure. A first sealing ring 105 is provided at the connection positions of the first housing 101 and the second housing 102, the second housing 102 and the third housing 103, and the third housing 103 and the fourth housing 104.

[0031] It should be noted that the end of the first housing 101 is provided with a stepped first mounting hole 106.

[0032] Based on the above embodiments, the four segmented housings are respectively configured as the first housing 101, the second housing 102, the third housing 103 and the fourth housing 104, and are connected by first and second threaded connections in sequence to form a compact cylindrical body of the portable projection indicator. It is small in size, easy to carry and can be quickly deployed, solving the problems of traditional equipment being bulky, complicated to install and poor in mobility.

[0033] In this technical solution, such as Figure 1-3 , Figure 5 As shown, the grating assembly 2 is disposed on one side of the first housing 101. The grating assembly 2 includes a grating mounting bracket 201, which is composed of an integrally formed mounting part 202 and a connecting part 203. A stepped first through hole 204 is provided inside the grating mounting bracket 201, and the first through hole 204 passes through both the mounting part 202 and the connecting part 203. The connecting part 203 is threadedly connected to the first mounting hole 106.

[0034] In addition, the grating assembly 2 also includes a grating lens 205 disposed in the first through hole 204 and a second sealing ring 206 disposed on one side of the grating lens 205. A first fixing ring 207 is provided on one side of the second sealing ring 206. The first fixing ring 207 is threadedly connected to the first through hole 204, and the second sealing ring 206 and the grating lens 205 are pressed into the stepped first through hole 204 by the threaded engagement between the first fixing ring 207 and the first through hole 204.

[0035] Based on the above embodiments, the grating lens 205 is a diffractive optical element. Using existing micro-nano lithography technology, traffic warnings, prompts, or patterns are preset in the grating lens 205. Under the condition of laser light source illumination, the warning or pattern can be displayed on a certain bearing surface, such as a wall or bottom surface. Since the grating mounting bracket 201 is threadedly connected to the first housing 101, the grating lens 205 can be replaced by unscrewing the grating mounting bracket 201, thereby changing the projection pattern of the portable projection indicator. In addition, by mass-producing the grating assembly 2 and only changing the type of grating lens 205 in each grating assembly 2, the user can directly replace the grating assembly 2 to project the corresponding warning or pattern in an emergency.

[0036] In order to achieve the projection function of the grating lens 205, this application sets the laser component 3 as the light source, such as... Figure 2-3 As shown, the laser component 3 is disposed inside the second housing 102. The laser component 3 includes a heat dissipation pipe 301 that cooperates with the inner wall of the second housing 102. The heat dissipation pipe 301 has a stepped second through hole 302 inside. A second fixing ring 303 is provided inside the second through hole 302. An LD laser tube 304 and a focusing lens 305 are provided inside the second fixing ring 303. The focusing lens 305 is located on the side of the LD laser tube 304 near the grating component 2.

[0037] In addition, a drive circuit board 306 is also provided inside the heat pipe 301, and the drive circuit board 306 is connected to the LD laser tube 304 wire to provide a constant voltage and constant current source for the LD laser tube 304. The drive circuit board 306 is fixed inside the heat pipe 301 by a third fixing ring 307.

[0038] Based on the above embodiments, the focusing lens 305 is used to focus the laser emitted by the LD laser tube 304 and make the focal point correspond to the grating lens 205 to meet the projection requirements of the grating lens 205. Since the LD laser tube 304 and the driving circuit board 306 will dissipate heat during operation, in order to prevent the heat from affecting the normal use of the portable projection indicator, this application uses a heat dissipation pipe 301 made of copper metal for heat dissipation, which reflects the practicality of the present invention.

[0039] If the user needs to replace the grating assembly 2 to replace the projected pattern, and the LD laser tube 304 and focusing lens 305 in the laser assembly 3 are directly exposed to the external environment when the user removes the grating assembly 2 as a whole, there is a possibility of scratches, wear, or other damage to the LD laser tube 304 and focusing lens 305 in an emergency. Therefore, this application also provides a protective component 6 inside the housing 101 for protection. Figure 2-3 As shown, the protective component 6 is disposed inside the first housing 101. The protective component 6 includes a window glass 601 disposed in the first mounting hole 106. A third sealing ring 602 is provided on one side of the window glass 601. A fifth fixing ring 603 is provided on one side of the third sealing ring 602. The fifth fixing ring 603 is threadedly connected to the first mounting hole 106. The third sealing ring 602 and the window glass 603 are pressed into the stepped first mounting hole 106 by the threaded engagement between the fifth fixing ring 603 and the first mounting hole 106.

[0040] In this technical solution, such as Figure 2-3 As shown, the control component 4 is located inside the second housing 102, and the control component 4 is located on the side of the laser component 3 away from the grating component 2. The control component 4 includes a control circuit board 401 and a fourth fixing ring 402. The control circuit board 401 is fitted on a pre-set step inside the second housing 102. The control circuit board 401 is wired to the drive circuit board 306. The fourth fixing ring 402 is threaded to the inside of the second housing 102. A connecting spring 403 is provided in the middle of the side of the control circuit board 401 away from the laser component 3. The connecting spring 403 passes through the fourth fixing ring 402 and extends into the third housing 103.

[0041] In addition, this application also includes a lithium battery 7, such as Figure 2-4 As shown, the lithium battery 7 is disposed inside the third housing 103. When the third housing 103 and the second housing 102 are connected to each other, the positive electrode of the lithium battery 7 is attached to and squeezed by the connecting spring 403. The connecting spring 403 and the negative electrode connecting seat 8 located at the bottom of the negative electrode of the lithium battery 7 together form a charging and discharging structure for charging and discharging the lithium battery 7.

[0042] More specifically, such as Figure 2-3 As shown, the control component 4 also includes a power control switch 404 and a charging port 405 disposed on the side wall of the second housing 102. The power control switch 404 and the charging port 405 are respectively connected to the control circuit board 401 by wires. The power control switch 404 is used to control the working state of the portable projection indicator, and the charging port 405 is used to charge the lithium battery 7 of the portable projection indicator. In addition, a sealing gasket 406 is provided on the charging port 405. When the charging port 405 is not in use, the sealing gasket 406 is used to seal and protect the charging port 405.

[0043] It should be noted here that in the control component 4, the control circuit board 404 has preset control rules. These control rules are used to control the LD laser tube 304 to turn on, off, and to switch between a constant-on state and a flashing state. In a preferred embodiment, pressing and holding the power control switch 404 for 3 seconds can turn the LD laser tube 304 on or off. When the LD laser tube 304 is on, pressing it for 1 second can switch between a constant-on state and a flashing state. Such control methods are commonly used in the prior art. Here, it is used for functional application, so the specific content of the control rules will not be described in detail.

[0044] like Figure 2 , Figure 4 As shown, the portable projection indicator also includes a window breaker 9, which consists of an integrally formed mating part 901 and a conical part 902. The mating part 901 is threadedly connected to a second mounting hole 903 pre-set on the negative terminal connector 8. The tip of the conical part 902 is away from the lithium battery 7 and extends out of the third housing 103. When the third housing 103 is mated with the fourth housing 104, the conical part is enclosed in the fourth housing 104. When the window breaker 9 is needed, the fourth housing 104 is unscrewed, and the conical part 902 is used to break the window.

[0045] In summary, the portable projection indicator for laser warning provided by this invention uses a first housing 101, a second housing 102, a third housing 103, and a fourth housing 104 connected by threads to form a compact cylindrical body. This design is small in size, easy to carry, and allows for rapid deployment, solving the problems of bulky, complex installation, and poor mobility of traditional equipment. The laser component 3 consists of an LD laser tube 104, a focusing lens 105, a drive circuit board 306, and a copper heat sink 301. Combined with the grating mounting bracket 201 and the grating lens 205, it achieves high brightness and clear projection over long distances, improving performance in harsh environments such as nighttime, rain, snow, and fog. The device offers enhanced visibility; the control circuit board 401 has preset control rules, enabling switching between on / off, constant light, and flashing modes. Combined with the charging port 405 and lithium battery 7, it supports rapid on-site adjustment of warning methods, reducing the manpower and time costs of information updates. Multiple sealing rings, along with the sealing gaskets 406 of the window glass 601 and charging port 405, provide waterproof and dustproof protection, improving environmental adaptability and reliability. The window breaker 9 is integrated into the rear of the portable projection indicator, serving as an emergency response device in sudden alarm situations. Furthermore, the projected warning reduces the exposure of personnel in traffic, improving on-site safety.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A portable projection indicator for laser warning, characterized in that, include: A housing assembly for housing and mounting various components inside a portable projection indicator. The housing assembly includes a first housing, a second housing, a third housing, and a fourth housing. The first housing, the second housing, the third housing, and the fourth housing are connected end to end to form a columnar structure. The first housing has a stepped first mounting hole at its end. A grating assembly is disposed on one side of the first housing. The grating assembly includes a grating mounting frame, which is composed of an integrally formed mounting part and a connecting part. A stepped first through hole is opened inside the grating mounting frame, and the first through hole passes through both the mounting part and the connecting part. The connecting part is threadedly connected to the first mounting hole. In addition, the grating assembly also includes a grating lens disposed in the first through hole. A laser assembly is disposed inside the second housing. The laser assembly includes a heat dissipation pipe that mates with the inner wall of the second housing. The heat dissipation pipe has a stepped second through hole inside. A second fixing ring is disposed inside the second through hole. An LD laser tube and a focusing lens are disposed inside the second fixing ring. The focusing lens is located on the side of the LD laser tube closer to the grating assembly. In addition, a drive circuit board is disposed inside the heat dissipation pipe. The drive circuit board is connected to the wires of the LD laser tube and is used to provide a constant voltage and constant current source for the LD laser tube. The drive circuit board is fixed inside the heat dissipation pipe by a third fixing ring. The control component is also located inside the second housing, and is situated on the side of the laser component away from the grating component. The control component includes a control circuit board and a fourth fixing ring. The control circuit board is fitted onto a pre-set step inside the second housing. The control circuit board is wired to the drive circuit board. The fourth fixing ring is threaded into the interior of the second housing. A connecting spring is provided in the middle of the side of the control circuit board away from the laser component. The connecting spring passes through the fourth fixing ring and extends into the third housing. A lithium battery is housed within a third housing. When the third housing and the second housing are connected, the positive electrode of the lithium battery adheres to and presses against the connecting spring. The connecting spring and the negative electrode connector located at the bottom of the negative electrode of the lithium battery together form a charging and discharging structure for charging and discharging the lithium battery.

2. A portable projection indicator for laser warning according to claim 1, characterized in that: In the housing assembly, the first housing, the second housing, the third housing, and the fourth housing are connected end to end by a threaded connection to form a columnar structure. A first sealing ring is provided at the connection positions of the first housing and the second housing, the second housing and the third housing, and the third housing and the fourth housing.

3. A portable projection indicator for laser warning according to claim 2, characterized in that: The grating assembly also includes a second sealing ring disposed on one side of the grating lens. A first fixing ring is disposed on one side of the second sealing ring. The first fixing ring is threadedly connected to the first through hole, and the second sealing ring and the grating lens are pressed into the stepped first through hole by the threaded engagement of the first fixing ring and the first through hole.

4. A portable projection indicator for laser warning according to claim 3, characterized in that: The portable projection indicator also includes a protective component, which is located inside the first housing. Specifically, the protective component includes a window glass disposed in a first mounting hole. A third sealing ring is provided on one side of the window glass, and a fifth fixing ring is provided on one side of the third sealing ring. The fifth fixing ring is threadedly connected to the first mounting hole, and the third sealing ring and the window glass are pressed into the stepped first mounting hole through the threaded engagement of the fifth fixing ring and the first mounting hole.

5. A portable projection indicator for laser warning according to claim 4, characterized in that: In the laser assembly, the heat sink is made of copper.

6. A portable projection indicator for laser warning according to claim 5, characterized in that: The control assembly also includes a power control switch and a charging port located on the side wall of the second housing. The power control switch and the charging port are respectively connected to the control circuit board wires. The power control switch is used to control the working state of the portable projection indicator, and the charging port is used to charge the lithium battery of the portable projection indicator. In addition, the charging port is also provided with a sealing gasket. When the charging port is not in use, the sealing gasket is used to seal and protect the charging port.

7. A portable projection indicator for laser warning according to claim 6, characterized in that: In the control component, the control circuit board has preset control rules, which are used to control the LD laser tube to turn on, turn off, and remain on or flash.

8. A portable projection indicator for laser warning according to claim 7, characterized in that: The portable projection indicator also includes a window breaker, which consists of an integrally formed mating part and a conical part. The mating part is threadedly connected to a second mounting hole pre-set on the negative terminal connector. The tip of the conical part is away from the lithium battery and extends out of the third housing. In addition, when the third housing and the fourth housing are mated and connected, the conical part is covered inside the fourth housing.

Images