A device and method for locating fire detectors on ships

By combining the support module and the positioning module, the horizontal positioning of the fire alarm probe is achieved by utilizing the weight of the laser flashlight, which solves the problem of insufficient installation accuracy of fire alarm probes on ships and improves positioning accuracy and efficiency.

CN118405241BActive Publication Date: 2026-04-03HUDONG ZHONGHUA SHIPBUILDINGGROUP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-03
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

When fire detectors are installed on ships, especially in high-rise areas, it is difficult to accurately measure horizontal distances, resulting in insufficient positioning accuracy.

Method used

The system employs a combination of support and positioning modules, including a strut, a first bracket, a second bracket, a positioning bracket, and a laser flashlight. These components are connected by pins and utilize the weight of the laser flashlight to achieve horizontal positioning of the fire alarm probe, ensuring that the positioning bracket remains horizontal.

Benefits of technology

It improves the positioning accuracy of fire alarm detectors, simplifies the positioning process, and increases positioning efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a device for locating fire detectors on ships. The device includes a support module and a positioning module. The support module includes a strut, a first bracket, and a second bracket. The second bracket is mounted on the lower end of the first bracket, and the upper outer side of the first bracket is connected to the strut. The second bracket is connected to the positioning module. The positioning module includes a positioning bracket and a laser flashlight. The positioning bracket is installed inside the second bracket and connected to the laser flashlight. The positioning bracket and the second bracket are connected by a pin, and the positioning bracket rotates around the pin. This invention, through the placement of the positioning bracket and the laser flashlight, ensures the horizontal position of the positioning bracket even without the first bracket being vertically positioned during fire detector positioning, thus improving the positioning accuracy of the fire detector.
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Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, specifically relating to a device and method for locating fire detectors on ships. Background Technology

[0002] Fire alarm systems are crucial equipment on ships, used to detect fires before they occur or in their early stages, and to promptly issue fire alarm signals and control signals for fire prevention equipment, enabling rapid and effective extinguishing of fires. The installation of fire detectors has strict distance requirements; for example, the distance between smoke detectors should not exceed 11 meters, and the distance between heat detectors should not exceed 9 meters. However, due to limitations in installation conditions and measuring tools, fire detectors are often installed at relatively high locations in some areas of the ship, such as the engine room, where ceiling heights are high. Therefore, it is difficult for on-site technicians to accurately measure the horizontal distance between these fire detectors. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device and method for locating fire detectors on ships. The method of this invention, through the setting of a positioning bracket and a laser flashlight, ensures that the positioning bracket is horizontal even when the fire detector is positioned without the need for the first bracket to be set vertically, thereby improving the positioning accuracy of the fire detector.

[0004] To achieve the above-mentioned objectives, the technical solution provided by this invention patent is as follows:

[0005] A device for locating a ship fire alarm detector includes a support module and a positioning module. The support module includes a strut, a first bracket, and a second bracket. The second bracket is mounted on the lower end of the first bracket, and the upper outer side of the first bracket is connected to the strut. The second bracket is connected to the positioning module. The positioning module includes a positioning bracket and a laser flashlight. The positioning bracket is installed inside the second bracket and connected to the laser flashlight. The positioning bracket and the second bracket are connected by a pin, and the positioning bracket rotates around the pin.

[0006] Furthermore, the first bracket is a cross-shaped arc plate, and the first bracket includes a support plate and a limiting plate. The support plate is a long strip arc plate, and the limiting plate is an arc strip plate. Limiting plates are symmetrically arranged on both sides of the upper part of the support plate. The limiting plates are perpendicularly connected to the support plate, and the lower end of the support plate is perpendicularly connected to the second bracket. Ear plates are provided on the outer side of the support plate, and the ear plates are connected to the support rod.

[0007] Furthermore, the second bracket is a semi-circular annular plate, and pin holes are provided at both ends of the second bracket. The line connecting the two pin holes on the second bracket passes through the center of the circle in which the second bracket is located. Pins are installed in the pin holes of the second bracket, and the second bracket is movably connected to the positioning bracket through the pins.

[0008] Furthermore, the positioning bracket is an overall circular plate, and the inner diameter of the positioning bracket is smaller than the inner diameter of the second bracket. The positioning bracket has symmetrical pin holes on its side, and the pin holes of the positioning bracket are aligned with the pin holes on the second bracket and connected by pins. The lower end face of the positioning bracket has two hanging rings symmetrically arranged, and the line connecting the two hanging rings passes through the center of the circle in which the positioning bracket is located. The positioning bracket and the second bracket are concentrically arranged.

[0009] Furthermore, the laser flashlight is cone-shaped overall, with two hanging rings symmetrically arranged on its circular surface. A laser flashlight switch is located in the center of the circular surface. The laser flashlight emits laser light from the top of the cone. The hanging rings of the laser flashlight are connected to the hanging rings on the positioning bracket via hooks. The laser flashlight is located directly below the center of the positioning bracket.

[0010] A method for locating fire detectors on ships, the method specifically includes the following steps:

[0011] S1, Prepare a device for locating a ship fire alarm detector. The device includes a support module and a positioning module. The support module includes a strut, a first bracket, and a second bracket. The second bracket is installed at the lower end of the first bracket. The upper outer side of the first bracket is connected to the strut. The second bracket is connected to the positioning module. The positioning module includes a positioning bracket and a laser flashlight. The positioning bracket is installed inside the second bracket. The positioning bracket is connected to the laser flashlight. The positioning bracket is connected to the second bracket by a pin. The positioning bracket rotates around the pin.

[0012] S2. After the ship's fire alarm detector is installed, the fire alarm detector positioning device is moved by the strut so that the support plate of the first bracket is connected to the side of the fire alarm detector, the limiting plate is on both sides of the fire alarm detector, and the second bracket is below the fire alarm detector.

[0013] S3, after the support plate of the first bracket is stably connected to the fire alarm detector, the second bracket rotates around the pin shaft under the weight of the laser flashlight, and the laser flashlight emits a laser beam toward the deck surface.

[0014] S4, when the second support is stable and no longer rotates around the pin, the laser beam emitted by the laser flashlight hits the deck directly below the fire alarm probe and marks the position of the laser beam.

[0015] S5. Repeat steps S2-S4 to perform positioning measurements of adjacent fire alarm probes. Measure the horizontal distance between the marked laser beam dots to complete the positioning of the fire alarm probes.

[0016] Furthermore, before the fire alarm detector positioning device positions the object, the laser flashlight is turned on via the laser flashlight switch, and after the fire alarm detector positioning is completed, the laser flashlight is turned off via the laser flashlight switch.

[0017] Based on the above technical solution, the present invention patent's device and method for locating ship fire alarm detectors has achieved the following technical advantages through practical application:

[0018] 1. The present invention provides a positioning device for a ship fire alarm detector. By setting up a positioning bracket and a laser flashlight, the positioning bracket can be kept horizontal without the need for the first bracket to be set vertically when positioning the fire alarm detector, thereby improving the positioning accuracy of the fire alarm detector. Attached Figure Description

[0019] Figure 1 This is a diagram showing the usage status of a fire alarm detector positioning device in a ship fire alarm detector positioning device according to the present invention.

[0020] Figure 2 This is a structural diagram of a fire alarm detector positioning device used in a ship fire alarm detector positioning device according to the present invention.

[0021] Figure 3 This is a structural diagram of a support module used in a ship fire alarm detector positioning device according to the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0023] like Figure 1-3 The present invention pertains to a device for locating fire detectors on ships. The device includes a support module and a positioning module. The support module includes a strut 3, a first bracket 1, and a second bracket 12. The second bracket 12 is mounted on the lower end of the first bracket 1, and the upper outer side of the first bracket 1 is connected to the strut 3. The second bracket 12 is connected to the positioning module. The positioning module includes a positioning bracket 13 and a laser flashlight 2. The positioning bracket 13 is installed inside the second bracket 12 and is connected to the laser flashlight 2. The positioning bracket 13 and the second bracket 12 are connected by a pin 14, and the positioning bracket 13 rotates around the pin 14.

[0024] The first bracket 1 is a cross-shaped arc plate. The first bracket 1 includes a support plate 11 and a limiting plate 16. The support plate 11 is a long strip arc plate, and the limiting plate 16 is an arc strip plate. The limiting plates 16 are symmetrically arranged on both sides of the upper part of the support plate 11. The limiting plates 16 are perpendicularly connected to the support plate 11. The lower end of the support plate 11 is perpendicularly connected to the second bracket 12. The outer side of the support plate 11 is provided with an ear plate 17, which is connected to the support rod 3.

[0025] The second bracket 12 is a semi-circular annular plate. Pin holes are provided at both ends of the second bracket 12. The line connecting the two pin holes on the second bracket 12 passes through the center of the circle in which the second bracket 12 is located. Pins 14 are installed in the pin holes of the second bracket 12. The second bracket 12 is movably connected to the positioning bracket 13 through the pins 14.

[0026] The positioning bracket 13 is an overall circular plate. The inner diameter of the positioning bracket 13 is smaller than the inner diameter of the second bracket 12. The positioning bracket 13 has symmetrical pin holes on its side. The pin holes of the positioning bracket 13 are aligned with the pin holes on the second bracket 12 and connected by pins 14. The lower end face of the positioning bracket 13 has two hanging rings 15 symmetrically arranged. The line connecting the two hanging rings 15 passes through the center of the circle in which the positioning bracket 13 is located. The positioning bracket 13 and the second bracket 12 are concentrically arranged. By setting the positioning bracket 13 and the laser flashlight 2, the positioning bracket 13 can be kept horizontal even when the fire alarm probe 4 is positioned without the first bracket 1 being set vertically, thus improving the positioning accuracy of the fire alarm probe 4.

[0027] The laser flashlight 2 is cone-shaped, with two hanging rings 18 symmetrically arranged on its circular surface. A laser flashlight switch 20 is located in the middle of the circular surface of the laser flashlight 2. The laser flashlight 2 emits laser light from the top of the cone. The hanging rings 18 of the laser flashlight 2 are connected to the hanging rings 15 on the positioning bracket 13 via hooks 19. The laser flashlight 2 is located directly below the center of the positioning bracket 13.

[0028] A method for locating fire detectors on ships, the method specifically includes the following steps:

[0029] S1, Prepare a device for locating a ship fire alarm detector. The device includes a support module and a positioning module. The support module includes a strut 3, a first bracket 1, and a second bracket 12. The second bracket 12 is installed at the lower end of the first bracket 1. The upper outer side of the first bracket 1 is connected to the strut 3. The second bracket 12 is connected to the positioning module. The positioning module includes a positioning bracket 13 and a laser flashlight 2. The positioning bracket 13 is installed inside the second bracket 12. The positioning bracket 13 is connected to the laser flashlight 2. The positioning bracket 13 and the second bracket 12 are connected by a pin 14. The positioning bracket 13 rotates around the pin 14.

[0030] S2, After the ship fire detector 4 is installed, the fire detector positioning device is moved by the strut 3 so that the support plate 11 of the first bracket 1 is connected to the side of the fire detector 4, the limiting plate 16 is on both sides of the fire detector 4, and the second bracket 12 is below the fire detector 4.

[0031] S3, after the support plate 11 of the first bracket 1 is stably connected to the fire alarm probe 4, the second bracket 12 rotates around the pin 14 under the weight of the laser flashlight 2, and the laser flashlight 2 emits a laser towards the deck surface.

[0032] S4, when the second support 12 is stable and no longer rotates around the pin 14, the laser beam emitted by the laser flashlight 2 hits the deck directly below the fire alarm probe 4 and marks the laser beam's point of impact.

[0033] S5. Repeat steps S2-S4 to perform positioning measurements of adjacent fire alarm probes 4, measure the horizontal distance to the marked laser beam dot positions, and complete the positioning of fire alarm probes 4.

[0034] This invention connects the positioning bracket 13 and the second bracket 12 via a pin 14, and utilizes the weight of the laser flashlight 2 to ensure that the positioning bracket 13 remains horizontal after positioning is stable, regardless of the angle between the first bracket 1 and the fire alarm probe 4. This ensures that the positioning point of the laser flashlight 2 is directly below the fire alarm probe 4, which not only improves positioning accuracy but also simplifies the positioning process and increases positioning efficiency.

[0035] Before the fire alarm detector positioning device is positioned, the laser flashlight 2 is turned on by the laser flashlight switch 20. After the fire alarm detector 4 is positioned, the laser flashlight 2 is turned off by the laser flashlight switch 20.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A device for locating fire detectors on ships, characterized in that, The device includes a support module and a positioning module. The support module includes a strut, a first bracket, and a second bracket. The second bracket is installed at the lower end of the first bracket. The upper outer side of the first bracket is connected to the strut. The second bracket is connected to the positioning module. The positioning module includes a positioning bracket and a laser flashlight. The positioning bracket is installed inside the second bracket. The positioning bracket is connected to the laser flashlight. The positioning bracket is connected to the second bracket via a pin. The positioning bracket rotates around the pin. The second bracket has pin holes at both ends. The line connecting the two pin holes on the second bracket passes through the center of the circle where the second bracket is located. Pins are installed in the pin holes of the second bracket, and the second bracket is movably connected to the positioning bracket through the pins. The lower end face of the positioning bracket is symmetrically provided with two hanging rings, and the line connecting the two hanging rings passes through the center of the circle in which the positioning bracket is located. The positioning bracket and the second bracket are concentrically arranged. The hanging rings of the laser flashlight are connected to the hanging rings on the positioning bracket via hooks, and the laser flashlight is located directly below the center of the positioning bracket.

2. The device for locating ship fire alarm detectors according to claim 1, characterized in that, The first bracket is a cross-shaped arc plate. The first bracket includes a support plate and a limiting plate. The support plate is a long strip arc plate, and the limiting plate is an arc strip plate. Limiting plates are symmetrically arranged on both sides of the upper part of the support plate. The limiting plates are perpendicularly connected to the support plate. The lower end of the support plate is perpendicularly connected to the second bracket. Ear plates are provided on the outer side of the support plate and are connected to the support rod.

3. The device for locating ship fire alarm detectors according to claim 2, characterized in that, The second support is a semi-circular ring plate.

4. The device for locating ship fire alarm detectors according to claim 3, characterized in that, The positioning bracket is an overall circular plate. The inner diameter of the positioning bracket is smaller than that of the second bracket. The positioning bracket has symmetrical pin holes on its side. The pin holes of the positioning bracket are aligned with the pin holes on the second bracket and connected by pins.

5. The device for locating ship fire alarm detectors according to claim 4, characterized in that, The laser flashlight is cone-shaped, with two symmetrical hanging rings on its circular surface. A laser flashlight switch is located in the middle of the circular surface, and the laser flashlight emits a laser from the top of the cone.

6. A method for locating a ship's fire alarm detector, employing the ship's fire alarm detector locating device as described in any one of claims 1-5, characterized in that, The method specifically includes the following steps: S1, Prepare a device for locating a ship fire alarm detector. The device includes a support module and a positioning module. The support module includes a strut, a first bracket, and a second bracket. The second bracket is installed at the lower end of the first bracket. The upper outer side of the first bracket is connected to the strut. The second bracket is connected to the positioning module. The positioning module includes a positioning bracket and a laser flashlight. The positioning bracket is installed inside the second bracket. The positioning bracket is connected to the laser flashlight. The positioning bracket is connected to the second bracket by a pin. The positioning bracket rotates around the pin. S2. After the ship's fire alarm detector is installed, the fire alarm detector positioning device is moved by the strut so that the support plate of the first bracket is connected to the side of the fire alarm detector, the limiting plate is on both sides of the fire alarm detector, and the second bracket is below the fire alarm detector. S3, after the support plate of the first bracket is stably connected to the fire alarm detector, the second bracket rotates around the pin shaft under the weight of the laser flashlight, and the laser flashlight emits a laser beam toward the deck surface. S4, when the second support is stable and no longer rotates around the pin, the laser beam emitted by the laser flashlight hits the deck directly below the fire alarm probe and marks the position of the laser beam. S5. Repeat steps S2-S4 to perform positioning measurements of adjacent fire alarm probes. Measure the horizontal distance between the marked laser beam dots to complete the positioning of the fire alarm probes.

7. A method for locating a ship fire alarm detector according to claim 6, characterized in that, Before the fire alarm detector positioning device is positioned, the laser flashlight is turned on by the laser flashlight switch. After the fire alarm detector positioning is completed, the laser flashlight is turned off by the laser flashlight switch.

Citation Information

Patent Citations

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