CN221200518U - A fiber grating fire detector - Google Patents

Abstract

The utility model discloses a fiber grating fire detector, which relates to the technical field of fire detectors, and comprises a fiber grating fire detector body, wherein a control panel is arranged at the front end of the fiber grating fire detector body. The fiber grating fire detector, through the coordinated use of the fiber grating fire detector body, the heat dissipation port and the dust cover, enables the fiber grating fire detector to open the heat dissipation port on both sides of the fiber grating fire detector body, and the opening area of the heat dissipation port corresponds to the position of the equipment working in the fiber grating fire detector body, and at the same time, the fiber grating fire detector body is equipped with a dust cover that can cover the outside of the heat dissipation port, and the dust cover can cover the heat dissipation port to prevent dust from entering the fiber grating fire detector body through the heat dissipation port, and at the same time, an opening is arranged at the bottom end of the dust cover, which can cooperate with the heat dissipation port to ensure the circulation between the inside of the fiber grating fire detector body and the outside air.

Description

A fiber grating fire detector

Technical Field

The utility model relates to the technical field of fire detectors, in particular to a fiber grating fire detector.

Background technique

Fire detectors are one of the most important components of fire detection systems. They contain at least one sensor that can continuously or periodically detect various physical and chemical phenomena produced during the combustion of substances, and can at least provide a suitable signal to the control and indication equipment. Fire detectors are the "sensory organs" of the system, and their function is to monitor whether there is a fire in the environment. Once there is a fire, the characteristic physical quantities of the fire, such as temperature, smoke, gas and radiation intensity, are converted into electrical signals, and the alarm signal is immediately sent to the fire alarm controller.

Fiber Bragg grating fire detector is a kind of fire detector. The fiber grating signal processing component of the fiber grating fire detector is used to detect and process the signal of the fiber grating temperature detection unit. The fiber grating signal processing component has many advantages such as high resolution, good repeatability, fast acquisition speed, high reliability, strong processing ability, multiple connection points and strong compatibility. It can realize fast, real-time, reliable and stable long-term monitoring of the on-site temperature detection unit.

Affected by its working type, the fiber grating fire detector needs to work continuously for a long time. In order to ensure its working environment, a heat dissipation vent is set on the outside of the body to assist the body in dissipating heat. The heat dissipation vent connects the inside of the body with the outside, so as to exchange air and assist heat dissipation. However, the exposed heat dissipation vent will also make it easier for external dust to enter the body and affect the working environment of the internal equipment of the body, and even affect the service life of the detector. If a shielding structure is set on the outside of the heat dissipation vent to protect it, it is easy to affect the heat dissipation effect, and it is not convenient to clean it regularly. For this reason, we designed a fiber grating fire detector to solve the above problems.

Utility Model Content

In view of the deficiencies of the prior art, the utility model provides a fiber grating fire detector, which solves the problems raised in the above background technology.

In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

The utility model provides a fiber grating fire detector, which has the following beneficial effects: a fiber grating fire detector, comprising a fiber grating fire detector body, a control panel is arranged at the front end of the fiber grating fire detector body, a wiring port is arranged at the rear end of the fiber grating fire detector body, evenly distributed heat dissipation ports are opened on both sides of the fiber grating fire detector body, and two groups of fixing seats located above the heat dissipation ports are fixedly installed on both sides of the fiber grating fire detector body, a deflection shaft is movably sleeved between the two groups of the fixing seats, a dust cover is fixedly connected to the outer side of the deflection shaft, two groups of limit bolts symmetrically distributed are assembled in the dust cover, and bolt sleeves matching the limit bolts are opened on the outer side of the fiber grating fire detector body.

Furthermore, the rear end of the fiber grating fire detector body is equipped with a switch and a power interface located on both sides of the wiring port. The switch and the power interface are electrically connected. The fiber grating fire detector body can be connected to the line through the wiring port to monitor the fire situation. The power interface can be connected to the power supply to supply power for the overall operation of the device. The switch can control the working status of the equipment in the fiber grating fire detector body.

Furthermore, the front end of the fiber grating fire detector body is fixedly connected to a mounting bracket located on the upper and lower sides of the control panel, and the mounting bracket is provided with evenly distributed mounting holes. The mounting bracket at the front end of the fiber grating fire detector body can cooperate with the mounting holes to assist in the installation and fixation of the entire fiber grating fire detector body.

Furthermore, two groups of symmetrically distributed discs are fixedly connected to the outer side of the deflection shaft, and a torsion spring is connected between the disc and the fixed seat. The disc can cooperate with the torsion spring to assist in limiting the dust cover. The torsion spring can drive the disc to deflect through its own torque, so that the disc drives the deflection shaft and the dust cover to be squeezed toward the outside of the fiber optic Bragg grating fire detector body to prevent the dust cover from shaking.

Furthermore, a cavity matching the heat dissipation port is provided on the inner side of the dust cover, and an opening is provided on the bottom end of the dust cover. After the dust cover covers the heat dissipation port, dust can be prevented from entering the fiber optic Bragg grating fire detector body through the heat dissipation port. The cavity inside the dust cover and the opening at the bottom end can cooperate with the heat dissipation port to ensure the circulation between the interior of the fiber optic Bragg grating fire detector body and the outside air.

Furthermore, the dust cover is provided with a bolt sleeve corresponding to the position of the limit bolt, the limit bolt and the bolt sleeve are threadedly connected, the bolt sleeve on the dust cover is used to assist the assembly of the limit bolt in the dust cover, and rotating the limit bolt can change the length of the end of the limit bolt extending from the dust cover.

Furthermore, the length of the limiting bolt is greater than the distance between the dust cover and the limiting screw hole after the dust cover is unfolded, and a knob is installed on the top of the limiting bolt. When the dust cover is deflected to be perpendicular to the side of the fiber optic grating fire detector body, the position of the limiting bolt corresponds to the position of the limiting screw hole. The dust cover can be fixed by rotating the limiting bolt to cooperate with the limiting screw hole.

1. The fiber grating fire detector, through the coordinated use of the fiber grating fire detector body, the heat dissipation port and the dust cover, enables the fiber grating fire detector to open the heat dissipation port on both sides of the fiber grating fire detector body, and the opening area of the heat dissipation port corresponds to the position of the equipment working in the fiber grating fire detector body. At the same time, the fiber grating fire detector body is equipped with a dust cover that can cover the outside of the heat dissipation port. The dust cover can cover the heat dissipation port to prevent dust from entering the fiber grating fire detector body through the heat dissipation port. At the same time, an opening is set at the bottom end of the dust cover, which can cooperate with the heat dissipation port to ensure the circulation between the inside of the fiber grating fire detector body and the outside air, that is, to ensure the heat dissipation effect, and can effectively reduce the dust entering the fiber grating fire detector body.

2. The fiber grating fire detector, through the coordinated use of the dust cover and the deflection axis as well as the limit bolt and the limit screw hole, enables the fiber grating fire detector to move the dust cover so that it deflects and opens around the deflection axis when the heat dissipation port needs to be cleaned, thereby exposing the heat dissipation port, and then the limit bolt on the inner side of the dust cover is rotated so that the end of the limit bolt is embedded in the limit screw hole on the outer side of the fiber grating fire detector body, fixes the dust cover, and keeps the dust cover in the unfolded state, so that the fiber grating fire detector can conveniently unfold the dust cover and clean the heat dissipation port.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is a schematic structural diagram of the back side of the utility model;

FIG3 is a schematic diagram of the structure of the utility model after the dust cover is unfolded;

FIG4 is a schematic diagram of the structure of the outer side of the fiber grating fire detector body of the utility model;

FIG5 is a schematic diagram of the structure of the interior of the dust cover of the utility model;

FIG. 6 is a schematic diagram of the structure between the limit bolt and the bolt sleeve of the utility model.

In the figure: 1. Fiber Bragg grating fire detector body; 2. Control panel; 3. Mounting bracket; 4. Mounting hole; 5. Dust cover; 6. Deflection axis; 7. Fixing seat; 8. Limit screw hole; 9. Wiring port; 10. Switch; 11. Power port; 12. Heat dissipation port; 13. Limit bolt; 14. Bolt sleeve; 15. Disc; 16. Torsion spring.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

Please refer to Figures 1 to 4. The utility model provides a technical solution: a fiber grating fire detector, including a fiber grating fire detector body 1, a control panel 2 is arranged at the front end of the fiber grating fire detector body 1, a mounting bracket 3 located at the upper and lower sides of the control panel 2 is fixedly connected to the front end of the fiber grating fire detector body 1, and the mounting bracket 3 is provided with evenly distributed mounting holes 4. The mounting bracket 3 at the front end of the fiber grating fire detector body 1 can cooperate with the mounting holes 4 to assist the overall installation and fixation of the fiber grating fire detector body 1 to ensure the stability of the working position of the fiber grating fire detector body 1, and a wiring port 9 is arranged at the rear end of the fiber grating fire detector body 1, and a switch 10 and a power interface 11 located at both sides of the wiring port 9 are assembled at the rear end of the fiber grating fire detector body 1, and the fiber grating fire detector body 1 can be connected to the line through the wiring port 9 to monitor the fire situation.

The switch 10 and the power interface 11 are electrically connected. The power interface 11 can be connected to the power supply to supply power for the overall operation of the device. The switch 10 can control the working state of the equipment in the fiber grating fire detector body 1. The fiber grating fire detector body 1 is provided with uniformly distributed heat dissipation ports 12 on both sides, and the fiber grating fire detector body 1 is fixedly installed with two groups of fixing seats 7 located above the heat dissipation ports 12 on both sides. A deflection shaft 6 is movably mounted between the two groups of fixing seats 7. A dust cover 5 is fixedly connected to the outer side of the deflection shaft 6. A cavity matching the heat dissipation port 12 is provided on the inner side of the dust cover 5. After the dust cover 5 covers the heat dissipation port 12, dust can be prevented from entering the fiber grating fire detector body 1 through the heat dissipation port 12. An opening is provided at the bottom end of the dust cover 5. The cavity inside the dust cover 5 and the opening at the bottom can cooperate with the heat dissipation port 12 to ensure the circulation between the inside of the fiber grating fire detector body 1 and the outside air.

Please refer to Figures 2 to 6. Two groups of symmetrically distributed disks 15 are fixedly connected to the outer side of the deflection shaft 6. The disks 15 can cooperate with the torsion springs 16 to assist in limiting the dust cover 5. A torsion spring 16 is connected between the disks 15 and the fixing seat 7. The torsion spring 16 can drive the disks 15 to deflect through their own torque, so that the disks 15 drive the deflection shaft 6 and the dust cover 5 to be squeezed toward the outer side of the fiber grating fire detector body 1, thereby ensuring the dust cover 5 covering the heat dissipation port 12.

Two groups of symmetrically distributed limiting bolts 13 are installed in the dust cover 5, and a bolt sleeve 14 matching the limiting bolt 13 is provided on the outer side of the fiber optic Bragg grating fire detector body 1. A bolt sleeve 14 corresponding to the position of the limiting bolt 13 is installed on the dust cover 5. The bolt sleeve 14 on the dust cover 5 is used to assist the assembly of the limiting bolt 13 in the dust cover 5. The limiting bolt 13 and the bolt sleeve 14 are threadedly connected. Rotating the limiting bolt 13 can change the length of the end of the limiting bolt 13 extending from the dust cover 5, which is convenient for the limiting bolt 13 to be connected with the limiting screw hole 8.

The length of the limiting bolt 13 is greater than the distance between the dust cover 5 and the limiting screw hole 8 after it is unfolded. When the dust cover 5 is deflected to be perpendicular to the side of the fiber optic grating fire detector body 1, the position of the limiting bolt 13 corresponds to the position of the limiting screw hole 8. The dust cover 5 can be fixed by rotating the limiting bolt 13 to cooperate with the limiting screw hole 8, and a knob is mounted on the top of the limiting bolt 13. The knob at the top of the limiting bolt 13 can facilitate the rotation operation of the limiting bolt 13.

In summary, when the fiber grating fire detector is in use, the fiber grating fire detector body 1 is installed in a fixed position as a whole through the mounting frame 3 and the mounting hole 4, and is connected to the line through the wiring port 9 to monitor the fire situation. The heat dissipation port 12 is opened on both sides of the fiber grating fire detector body 1. The opening area of the heat dissipation port 12 corresponds to the position of the equipment working in the fiber grating fire detector body 1. When the fiber grating fire detector body 1 continues to work, the internal equipment assists in heat dissipation through the heat dissipation port 12. The fiber grating fire detector body 1 is equipped with a dust cover 5 that can cover the outside of the heat dissipation port 12. The dust cover 5 covers the heat dissipation port 12 to prevent dust from entering the fiber grating fire detector through the heat dissipation port 12. In the grating fire detector body 1, an opening is set at the bottom end of the dust cover 5, which can cooperate with the heat dissipation port 12 to ensure the circulation between the inside of the fiber grating fire detector body 1 and the outside air. When the heat dissipation port 12 needs to be cleaned, the dust cover 5 can be moved so that the dust cover 5 is deflected and opened around the deflection axis 6, thereby exposing the heat dissipation port 12, and then the limiting bolt 13 on the inside of the dust cover 5 is rotated to make the end of the limiting bolt 13 embedded in the limiting screw hole 8 on the outside of the fiber grating fire detector body 1, and the dust cover 5 is fixed, and the dust cover 5 is kept in the unfolded state until the heat dissipation port 12 is cleaned, thereby completing the operation of the entire fiber grating fire detector and the cleaning process of the heat dissipation port 12.

In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a fiber bragg grating fire detector, includes fiber bragg grating fire detector body (1), the front end of fiber bragg grating fire detector body (1) is provided with control panel (2), and the tail end of fiber bragg grating fire detector body (1) is provided with wiring mouth (9), its characterized in that: the fiber bragg grating fire detector comprises a fiber bragg grating fire detector body (1), wherein two evenly-distributed radiating ports (12) are formed in two sides of the fiber bragg grating fire detector body (1), two groups of fixing seats (7) located above the radiating ports (12) are fixedly arranged on two sides of the fiber bragg grating fire detector body (1), a deflection shaft (6) is movably sleeved between the two groups of fixing seats (7), a dust cover (5) is fixedly connected to the outer side of the deflection shaft (6), two groups of limit bolts (13) which are symmetrically distributed are arranged in the dust cover (5), and bolt sleeves (14) matched with the limit bolts (13) are formed in the outer side of the fiber bragg grating fire detector body (1).

2. A fiber grating fire detector as defined in claim 1, wherein: the fiber bragg grating fire detector is characterized in that a switch (10) and a power interface (11) which are positioned on two sides of the wiring port (9) are arranged at the rear end of the fiber bragg grating fire detector body (1), and the switch (10) and the power interface (11) are electrically connected.

3. A fiber grating fire detector as defined in claim 1, wherein: the fiber bragg grating fire detector comprises a fiber bragg grating fire detector body (1), wherein the front end of the fiber bragg grating fire detector body (1) is fixedly connected with a mounting frame (3) positioned on the upper side and the lower side of a control panel (2), and uniformly distributed mounting holes (4) are formed in the mounting frame (3).

4. A fiber grating fire detector as defined in claim 1, wherein: two groups of discs (15) which are symmetrically distributed are fixedly connected to the outer side of the deflection shaft (6), and torsion springs (16) are connected between the discs (15) and the fixed seat (7).

5. A fiber grating fire detector as defined in claim 1, wherein: the inner side of the dust cover (5) is provided with a cavity matched with the heat dissipation opening (12), and the bottom end of the dust cover (5) is provided with an opening.

6. A fiber grating fire detector as defined in claim 5, wherein: the dustproof cover (5) is sleeved with a bolt sleeve (14) corresponding to the position of the limit bolt (13), and the limit bolt (13) is in threaded connection with the bolt sleeve (14).

7. The fiber bragg grating fire detector of claim 6, wherein: the length value of the limit bolt (13) is larger than the distance value between the expanded dust cover (5) and the limit screw hole (8), and the top end of the limit bolt (13) is sleeved with a knob.