A laser detector

Abstract

The utility model discloses a kind of laser detectors, including detection body, extension pipe and laser transmitter, detection body includes the detection shell with installation chamber formed in inside, control circuit board being arranged in installation chamber, and operation part being arranged on detection shell and being electrically connected with control circuit board;Extension pipe is arranged from the detection body;Laser transmitter is arranged on the extension pipe and is electrically connected with control circuit board away from the one end of detection body.This laser detector can be in-depth vehicle bottom and other narrow detection space, and white smoke is enhanced by laser scattering white smoke to enhance white smoke reflection, auxiliary maintenance personnel is clearly positioned pipeline leakage point in insufficient light environment, and it is convenient to overhaul pipeline.

Description

Technical Field

[0001] This utility model relates to the field of testing instruments, and in particular to a laser testing instrument. Background Technology

[0002] When a car's fuel lines are damaged, fuel leaks can easily cause fires, reduced power, and other safety hazards. Currently, leaks can be detected using a range hood. This hood produces white smoke, which is then injected into the fuel lines under pressure. If a leak is found, the white smoke will escape from the damaged area, allowing repair personnel to locate the leak by observing the reflection. However, due to the confined space and poor lighting under the car, the white smoke emanating from the leak is often difficult to see clearly with the naked eye, making leak location challenging and requiring repeated checks, which is inconvenient for repairs. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a laser detector that can penetrate into narrow inspection spaces such as under vehicles. It enhances the reflection of white smoke by scattering it with laser light, assisting maintenance personnel in clearly locating pipeline leaks in low-light conditions, thus facilitating pipeline maintenance.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A laser detector includes a detection body, an extension tube, and a laser emitter. The detection body includes a detection housing with an internal mounting chamber, a control circuit board disposed within the mounting chamber, and an operation part disposed on the detection housing and electrically connected to the control circuit board. The extension tube extends from the detection body. The laser emitter is disposed on the extension tube at one end away from the detection body and is electrically connected to the control circuit board.

[0006] Preferably, the laser emitter is electrically connected to the control circuit board via a first conductive wire, and a wire channel is formed inside the extension tube, with the first conductive wire passing through the wire channel.

[0007] Preferably, the laser emitters are arranged side by side on one side of the extension tube. The laser emitters are covered with a laser protective sleeve. The laser protective sleeve has a laser emission hole through which the laser scattered by the laser emitter is emitted out of the laser protective sleeve. The side wall of the extension tube has a first wire passage hole that connects to the wire channel. The laser protective sleeve has a second wire passage hole that connects to the first wire passage hole. The first conductive wire passes through the first wire passage hole and the second wire passage hole and connects to the laser emitter.

[0008] Preferably, the laser protective sleeve includes a first protective side plate arranged on the outer periphery of the laser emitter and a first protective top plate arranged on the end side of the laser emitter. The first protective top plate is connected to the first protective side plate, the laser emission hole is located on the first protective top plate, and the second wire hole is located on the first protective side plate.

[0009] Preferably, a protective cover plate is connected to the end of the first protective side plate away from the first protective top plate, and the protective cover plate, together with the first protective side plate and the first protective top plate, forms a receiving cavity for arranging the laser emitter.

[0010] Preferably, the detection housing has a through-hole for the extension tube to pass through, the inner wall of the detection housing has a mounting groove arranged around the through-hole, a locking member is positioned and installed in the mounting groove, the locking member has a through-hole for cooperating with the extension tube, and the mounting groove has a wire passage connecting the locking hole and the mounting chamber.

[0011] Preferably, it also includes a gas sensor, which is disposed on the end of the extension tube away from the detection body and arranged side by side on one side of the laser emitter, and is electrically connected to the control circuit board.

[0012] Preferably, it also includes a gas sensor, which is disposed on the end of the extension tube away from the detection body and arranged side by side on one side of the laser emitter, and is electrically connected to the control circuit board through a second conductive wire, which passes through the wire channel.

[0013] Preferably, the gas sensor housing is provided with a gas protective sleeve, and a gas detection hole is provided through the gas protective sleeve for the gas sensor to detect external gas. The gas protective sleeve and the laser protective sleeve are arranged side by side and are integrally formed.

[0014] Preferably, the gas sensor has an extended edge protruding from its outer periphery. The gas protective sleeve includes a second protective side plate arranged on the outer periphery of the gas sensor, a connecting side plate arranged on the outer periphery of the extension tube, and a second protective top plate arranged on the end side of the gas sensor. The second protective side plate abuts against a side of the extended edge away from the detection body. The connecting side plate is connected to the second protective side plate and the extension tube. The second protective top plate is connected to the second protective side plate. The gas detection hole is located on the second protective top plate.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] The laser detector provided by this utility model features an extension tube extending from the detection body, with the laser emitter positioned at the end of the extension tube away from the detection body. This allows the operator to insert the extension tube into narrow detection spaces such as under a vehicle, enabling the laser emitter to penetrate deep into these spaces. The laser emitted by the emitter scatters white smoke, enhancing its reflection and assisting maintenance personnel in clearly locating pipeline leaks in low-light conditions, thus facilitating pipeline repair. Furthermore, since the laser emitter and the operating unit are electrically connected to a control circuit board inside the detection housing, maintenance personnel can operate the laser emitter, which extends into narrow detection spaces like under a vehicle, simply by triggering the operating unit on the detection housing. This makes operation simple, convenient, and easy to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a laser detector according to an embodiment of the present invention.

[0018] Figure 2 Partial structural explosion of a laser detector according to an embodiment of this utility model Figure 1 .

[0019] Figure 3 Partial structural explosion of a laser detector according to an embodiment of this utility model Figure 2 .

[0020] Figure 4 This is an exploded view of a laser detector according to an embodiment of the present invention.

[0021] Figure label:

[0022] Detection body 1; detection housing 11, connection hole 111, mounting groove 112, wire passage 113; control circuit board 12; operation unit 13; locking component 14, locking hole 141;

[0023] Extension tube 2; wire channel 21; first wire through hole 22;

[0024] Laser emitter 3;

[0025] Gas sensor 4; Extended edge 41;

[0026] Laser protective sleeve 5; first protective side plate 51, second wire hole 511; first protective top plate 52, laser emission hole 521;

[0027] Gas protective sleeve 6; second protective side plate 61; second protective top plate 62; gas detection hole 621; connecting side plate 63;

[0028] 7. Protective cover plate. Detailed Implementation

[0029] like Figures 1-4As shown in the figure, as an embodiment of the present invention, a laser detector is provided, including a detection body 1, an extension tube 2, and a laser emitter 3. The detection body 1 includes a detection housing 11 with an internal mounting chamber, a control circuit board 12 disposed within the mounting chamber, and an operation part 13 disposed on the detection housing 11 and electrically connected to the control circuit board 12. The extension tube 2 extends from the detection body 1. The laser emitter 3 is disposed on the end of the extension tube 2 away from the detection body 1 and is electrically connected to the control circuit board 12. The laser detector in this embodiment features an extension tube 2 extending from the detection body 1, with the laser emitter 3 positioned at the end of the extension tube 2 away from the detection body 1. This allows the operator to insert the extension tube 2 into narrow detection spaces such as under a vehicle, enabling the laser emitter 3 to penetrate deep into these spaces. The laser emitted by the laser emitter 3 scatters white smoke to enhance its reflection, assisting maintenance personnel in clearly locating pipeline leaks in low-light conditions, thus facilitating pipeline maintenance. Furthermore, since the laser emitter 3 and the operating unit 13 are electrically connected to the control circuit board 12 inside the detection housing 11, maintenance personnel can operate the laser emitter 3, which penetrates into narrow detection spaces such as under a vehicle, simply by triggering the operating unit 13 on the detection housing 11. This makes the operation simple, convenient, and easy to use.

[0030] In this embodiment, the laser emitter 3 and the control circuit board 12 are electrically connected through a first conductive wire (not shown in the figure). A wire channel 21 is formed inside the extension tube 2, and the first conductive wire is passed through the wire channel 21 to avoid the first conductive wire being exposed. On the one hand, this can protect the first conductive wire and ensure the stability of the circuit connection. On the other hand, it can prevent messy first conductive wires from affecting the inspection operation of maintenance personnel.

[0031] like Figure 2 As shown, in this embodiment, the laser emitters 3 are arranged side-by-side on one side of the extension tube 2. Compared to directly arranging the laser emitters 3 in series at the end of the extension tube 2, this embodiment can shorten the overall length of the laser detector, making it easier to package and carry. In other embodiments, the laser emitters 3 can also be directly arranged in series at the end of the extension tube 2.

[0032] In this embodiment, the laser emitter 3 is covered by a laser protective sleeve 5. The laser protective sleeve 5 protects the laser emitter 3 from wear or impact, thereby extending its service life. A laser emission hole 521 is provided through the laser protective sleeve 5 to allow the scattered laser light from the laser emitter 3 to exit the sleeve. The laser emission hole 521 guides the direction of laser scattering, ensuring that the scattered laser light is concentrated on the detection area. A first wire passage hole 22, connecting to the wire channel 21, is provided through the side wall of the extension tube 2. A second wire passage hole 511, communicating with the first wire passage hole 22, is provided through the laser protective sleeve 5. The first conductive wire passes through the first wire passage hole 22 and the second wire passage hole 511 and connects to the laser emitter 3.

[0033] In this embodiment, the laser protective sleeve 5 includes a first protective side plate 51 arranged on the outer periphery of the laser emitter 3 and a first protective top plate 52 arranged on the end side of the laser emitter 3. The first protective top plate 52 is connected to the first protective side plate 51. The laser emission hole 521 is located on the first protective top plate 52, which allows the laser to be emitted in the direction directly in front of the detection body 1, conforming to detection habits. The second wire passage hole 511 is located on the first protective side plate 51, allowing the first conductive wire to enter from the side of the laser protective sleeve 5, saving wiring space. In other embodiments, the laser emission hole 521 may also be provided on the first protective side plate 51, and the second wire passage hole 511 may also be provided as an opening formed on the first protective side plate 51 near the end of the detection body 1.

[0034] like Figure 3 As shown, in this embodiment, a protective cover plate 7 is connected to the end of the first protective side plate 51 away from the first protective top plate 52. The protective cover plate 7, the first protective side plate 51, and the first protective top plate 52 surround each other to form a receiving chamber for arranging the laser emitter 3. In this embodiment, the first wire-passing hole 22 is configured as a notch structure that penetrates the end face of the extension tube 2 away from the detection body 1, and the second wire-passing hole 511 is configured as a notch structure that penetrates the end face of the laser protective sleeve 5 near the detection body 1. The first protective side plate 51 forms an opening at the end away from the first protective top plate 52, so that when the laser emitter 3 is arranged in the laser protective sleeve 5 through the opening, the first conductive wire can be passed through the notch opening of the first wire-passing hole 22 and the notch opening of the second wire-passing hole 511 respectively, thereby enabling the laser emitter 3 and the first conductive wire to be installed and arranged at one time, which is convenient for production and assembly. The protective cover 7 provides more comprehensive protection for the laser emitter 3 and prevents the laser emitter 3 from leaving the containment chamber through the opening.

[0035] like Figure 4As shown, in this embodiment, a connecting hole 111 is provided through the detection housing 11 for the extension tube 2 to pass through. An installation groove 112 is provided on the inner wall of the detection housing 11, surrounding the connecting hole 111. A locking member 14 is positioned and installed in the installation groove 112. The locking member 14 has a locking hole 141 that mates with the extension tube 2. The installation groove 112 has a wire passage 113 that connects the locking hole 141 to the installation chamber. The wire passage 113 provides a wiring channel for the connection of the first conductive wire and other conductive wires in the wire passage 21 to the control circuit board 12. In this embodiment, the locking member 14 is a nut, and the locking hole 141 is a threaded hole. An external thread is provided on the outer side of the end of the extension tube 2 near the detection body 1. The extension tube 2 is connected to the threaded hole via this external thread, resulting in a tight and reliable connection that is easy to disassemble or assemble. In other embodiments, the locking member can also be a buckle or other locking structure that mates with the extension tube.

[0036] like Figure 2 As shown, this embodiment also includes a gas sensor 4. The gas sensor 4 is disposed on the end of the extension tube 2 away from the detection body 1 and arranged side by side with the laser emitter 3, and is electrically connected to the control circuit board 12. This allows the detector to have a dual detection mode with both laser detection and gas detection functions. When there is a leak in the pipeline, the gas sensor 4 can detect the gas composition in the detection area to initially locate the approximate area of ​​the leak point. Then, the laser emitted by the laser emitter 3 scatters the white smoke, enhancing the reflection of the white smoke and accurately locating the leak point, thereby quickly locating the leak point. In addition, the gas sensor 4 and the laser emitter 3 are arranged side by side on the end of the extension tube 2 away from the detection body 1, allowing them to extend synchronously into narrow detection spaces such as under a vehicle along with the extension tube 2, ensuring that gas detection and laser positioning act on the same detection area, resulting in good collaborative detection effect.

[0037] In this embodiment, the gas sensor 4 and the control circuit board 12 are electrically connected by a second conductive wire (not shown in the figure). The second conductive wire is run through the wire channel 21 to prevent the second conductive wire from being exposed. On the one hand, this can protect the second conductive wire and ensure the stability of the circuit connection. On the other hand, it can prevent messy second conductive wires from affecting the inspection operation of maintenance personnel.

[0038] In this embodiment, the gas sensor 4 is covered by a gas protective sleeve 6, which protects the gas sensor 4 from factors such as oil stains and collisions that could affect its detection accuracy or damage it. A gas detection hole 621 is provided through the gas protective sleeve 6 to allow the gas sensor 4 to detect external gases. This hole ensures that external gases can smoothly enter the gas protective sleeve 6 and contact the gas sensor 4, guaranteeing the normal operation of the gas detection function. The gas protective sleeve 6 and the laser protective sleeve 5 are arranged side-by-side and integrally formed, making the structure of the gas sensor 4 and the laser emitter 3 more compact, improving the structural strength of the gas protective sleeve 6 and the laser protective sleeve 5, and ensuring the installation stability of the gas sensor 4 and the laser emitter 3.

[0039] like Figure 2 As shown, in this embodiment, the gas sensor 4 has an extended edge 41 protruding from its outer periphery. The gas protective sleeve 6 includes a second protective side plate 61 arranged on the outer periphery of the gas sensor 4, a connecting side plate 63 arranged on the outer periphery of the extension tube 2, and a second protective top plate 62 arranged on the end side of the gas sensor 4. The second protective side plate 61 presses against the side of the extended edge 41 away from the detection body 1, restricting the axial displacement of the gas sensor 4 within the gas protective sleeve 6 and ensuring the stability of the detection position of the gas sensor 4. The connecting side plate 63 is connected to the second protective side plate 61 and the extension tube 2, so that the gas protective sleeve 6 and the laser protective sleeve 5 are connected to the extension tube 2, ensuring the installation stability of the gas sensor 4 and the laser emitter 3. The second protective top plate 62 is connected to the second protective side plate 61, and the gas detection hole 621 is located on the second protective top plate 62, enabling the gas sensor 4 to detect gas along the front of the detection body 1, which is the same as the laser emission direction of the laser emitter 3, thereby enabling better coordinated detection with the laser emitter 3.

[0040] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A laser detector, characterized in that, include: The detection body includes a detection housing with an internal mounting chamber, a control circuit board disposed within the mounting chamber, and an operation part disposed on the detection housing and electrically connected to the control circuit board. An extension tube is arranged extending from the detection body; A laser emitter is mounted on the end of the extension tube away from the detection body and is electrically connected to the control circuit board.

2. The laser detector according to claim 1, characterized in that: The laser emitter is electrically connected to the control circuit board via a first conductive wire, and a wire channel is formed inside the extension tube, with the first conductive wire passing through the wire channel.

3. The laser detector according to claim 2, characterized in that: The laser emitters are arranged side by side on one side of the extension tube. The laser emitters are covered with a laser protective sleeve. The laser protective sleeve has a laser emission hole through which the laser scattered by the laser emitter is emitted out of the laser protective sleeve. The side wall of the extension tube has a first wire passage hole that connects to the wire channel. The laser protective sleeve has a second wire passage hole that connects to the first wire passage hole. The first conductive wire passes through the first wire passage hole and the second wire passage hole and connects to the laser emitter.

4. The laser detector according to claim 3, characterized in that: The laser protective sleeve includes a first protective side plate arranged on the outer periphery of the laser emitter and a first protective top plate arranged on the end side of the laser emitter. The first protective top plate is connected to the first protective side plate. The laser emission hole is located on the first protective top plate, and the second wire hole is located on the first protective side plate.

5. The laser detector according to claim 4, characterized in that: A protective cover plate is connected to the end of the first protective side plate away from the first protective top plate. The protective cover plate, the first protective side plate, and the first protective top plate surround each other to form a cavity for accommodating a laser emitter.

6. The laser detector according to claim 1, characterized in that: The detection housing has a through-hole for the extension tube to pass through. The inner wall of the detection housing has a mounting groove arranged around the through-hole. A locking component is positioned and installed in the mounting groove. The locking component has a through-hole for connecting with the extension tube. The mounting groove has a wire passage connecting the locking hole and the mounting chamber.

7. The laser detector according to any one of claims 1-6, characterized in that: It also includes a gas sensor, which is disposed on the end of the extension tube away from the detection body and arranged side by side on one side of the laser emitter, and is electrically connected to the control circuit board.

8. The laser detector according to claim 3, characterized in that: It also includes a gas sensor, which is disposed on the end of the extension tube away from the detection body and arranged side by side on one side of the laser emitter, and is electrically connected to the control circuit board through a second conductive line, which is run through the wire channel.

9. The laser detector according to claim 8, characterized in that: The gas sensor housing is provided with a gas protective sleeve, and a gas detection hole is provided through the gas protective sleeve for the gas sensor to detect external gas. The gas protective sleeve and the laser protective sleeve are arranged side by side and are integrally formed.

10. The laser detector according to claim 9, characterized in that: The gas sensor has an extended edge protruding from its outer periphery. The gas protective sleeve includes a second protective side plate arranged on the outer periphery of the gas sensor, a connecting side plate arranged on the outer periphery of the extension tube, and a second protective top plate arranged on the end side of the gas sensor. The second protective side plate abuts against a side of the extended edge away from the detection body. The connecting side plate is connected to the second protective side plate and the extension tube. The second protective top plate is connected to the second protective side plate. The gas detection hole is located on the second protective top plate.

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