Multi-frequency fire point detection device with early warning function

Abstract

The utility model discloses a multi-frequency fire point detection device with an early warning function, which relates to the technical field of fire point detection devices and comprises a shell, a probe is embedded in one side of the shell, an arc-shaped brush is clamped on one side of the shell, two ends of the arc-shaped brush are fixedly connected with rotating blocks, the tops of the rotating blocks are connected with a driving mechanism, and the driving mechanism is connected with the shell. The driving mechanism comprises a micro motor, a triggering inclined block is fixedly connected to one side of the rotating block, a touch switch is fixedly connected to the inner top of the arc-shaped brush, and the touch switch is connected with a servo motor through a wire. Through the arrangement of the triggering inclined block and the touch switch, the purpose that the servo motor can be triggered by rotation of the arc-shaped brush to the purpose that the probe rotates to be matched with cleaning is achieved, through the arrangement of the driving mechanism, automatic recovery of the arc-shaped brush is achieved, during use, only a telescopic bolt needs to be pulled and a micro motor is started, continuous manual intervention is not needed, and the working efficiency is greatly improved. And the convenience and efficiency of cleaning work are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire point detection device technical field, concretely is a kind of multi-frequency fire point detection device with early warning function. BACKGROUND

[0002] When the hemispherical multi-frequency detector is used in complex environment such as outdoors, dust, dirt, water vapor and other pollutants can accumulate on the surface of the probe, which can affect the reception and perception of the detector to thermal radiation and other signals, thereby reducing the detection accuracy, and the long-term attachment of pollutants on the surface of the probe can cause corrosion, wear and other damages to the shell, optical elements and other components of the detector, reducing the service life of the detector. The existing probe design is detachable to facilitate individual cleaning after removal, but requires more manual operation to complete the cleaning process, which is time-consuming and labor-intensive.

[0003] Therefore, we designed a kind of multi-frequency fire point detection device with early warning function to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of multi-frequency fire point detection device with early warning function to solve the problems raised in the above background.

[0005] To solve the above technical problems, the utility model provides a kind of multi-frequency fire point detection device with early warning function, which comprises a shell, a probe is embedded in one side of the shell, an arc-shaped brush is also clamped in one side of the shell, both ends of the arc-shaped brush are fixedly connected with rotating blocks, a driving mechanism is connected to the top of the rotating block, the driving mechanism comprises a micro motor, a trigger inclined block is fixedly connected to one side of the rotating block, a touch switch is fixedly connected to the top inside the arc-shaped brush, and the touch switch is connected with a servo motor through wires.

[0006] Further, the driving mechanism further comprises a connecting plate, a rotating shaft is rotatably connected to one side of the connecting plate, a driven gear and a driving gear are rotatably connected to the other side of the connecting plate, a micro motor is arranged on one side of the driving gear, and the output shaft of the micro motor is fixedly connected with the driving gear.

[0007] Further, the transmission gear is engagedly connected between the driven gear and the driving gear.

[0008] Further, gear shafts are fixedly connected to one side of the driven gear and the driving gear, and a lever and a sector block are fixedly connected to the gear shafts.

[0009] Further, the rotating shaft is fixedly connected with an arc-shaped block.

[0010] Further, a receiving groove is formed in one side of the shell close to the arc-shaped brush, and the receiving groove is adapted to the shape of the arc-shaped brush.

[0011] Further, the shell is mounted with a telescopic bolt on one side, and the telescopic bolt is movably connected with the arc-shaped brush.

[0012] Further, the output end of the servo motor is fixedly connected with the probe.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. By setting the trigger inclined block and the touch switch, the rotation of the arc-shaped brush can trigger the servo motor, and the probe rotates to cooperate with cleaning, the driving mechanism is set, the arc-shaped brush is automatically recycled, and when in use, only the telescopic bolt is pulled and the micro motor is started, the convenience and efficiency of cleaning work are improved.

[0015] 2. The arc-shaped brush and the probe are relatively moved to clean, that is, the arc-shaped brush rotates to the front of the probe and is attached, and the probe rotates in place, the contact parts of the two are changed, the brush can brush each area of the surface of the probe, the dust, impurities and other pollutants on the surface of the probe are removed, the probe is always in a good working state, which helps to maintain the detection accuracy of the probe, reduces the erosion of the pollutants to the detector, thereby prolongs the service life of the detector and reduces the use cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the utility model;

[0018] Figure 3 It is a structural schematic view of the driving mechanism of the utility model;

[0019] Figure 4 It is a rear view of the driving mechanism of the utility model;

[0020] Figure 5 It is a sectional view of the shell of the utility model.

[0021] In the figure: 1, shell; 2, arc-shaped brush; 3, rotating block; 4, probe; 5, storage groove; 6, telescopic bolt; 7, trigger inclined block; 8, gear shaft; 9, pull rod; 10, sector block; 11, arc-shaped block; 12, rotating shaft; 13, transmission gear; 14, driving gear; 15, driven gear; 16, micro motor; 17, touch switch; 18, servo motor; 19, rotating rod; 20, connecting plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0023] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a multi-frequency fire point detection device with early warning function, including shell 1, shell 1 side is embedded with probe 4, multiple sets of annular conductive slip rings are arranged between probe 4 and device internal circuit, so that in the process that probe 4 rotates 720 °, electrical energy is continuously and stably supplied to probe 4, the side of shell 1 is also clamped with arc-shaped brush 2, the both ends of arc-shaped brush 2 are fixedly connected with rotating block 3, rotating block 3 top is connected with driving mechanism, driving mechanism includes micro motor 16, micro motor 16 is connected with power supply, by opening micro motor 16, rotating block 3 can be rotated, in turn arc-shaped brush 2 is rotated with rotating block 3 as pivot, rotating block 3 side is fixedly connected with trigger inclined block 7, when arc-shaped brush 2 inner top is fixedly connected with touch switch 17, touch switch 17 is electrically connected with servo motor 18 by wire, when rotating block 3 rotates 90 degrees, drive trigger inclined block 7 and touch switch 17 to abut, to trigger touch switch 17, control to open servo motor 18, the output end of servo motor 18 is fixedly connected with probe 4.

[0024] Specific implementation, open micro motor 16 drive rotating block 3 rotation, in turn arc-shaped brush 2 is rotated with rotating block 3 as pivot, when rotating block 3 rotates a certain angle, drive arc-shaped brush 2 to rotate to the front position of probe 4, and the inside of arc-shaped brush 2 and the surface of probe 4 are attached, while trigger inclined block 7 and touch switch 17 slide and abut, to trigger touch switch 17, control to open servo motor 18, in turn drive probe 4 to rotate in situ, change its contact position with arc-shaped brush 2, so that brush can brush each area on the surface of probe 4, to realize the cleaning of the surface of probe 4.

[0025] Please refer to Figures 3-4 As shown in the figure, driving mechanism also includes connecting plate 20, connecting plate 20 side is rotatably connected with rotating shaft 12 by bearing, connecting plate 20 other side is rotatably connected with driven gear 15 and driving gear 14 by gear shaft 8, driving gear 14 side is equipped with micro motor 16, the output shaft of micro motor 16 is fixedly connected with driving gear 14, by starting micro motor 16 to run, drive driving gear 14 to rotate, finally drive arc-shaped brush 2 to rotate to the front position of probe 4.

[0026] Please refer to Figure 4The transmission gear 13 is connected between the driven gear 15 and the driving gear 14, and the driving gear 14 and the driven gear 15 are connected through the transmission gear 13, so that the power is transmitted and the rotation direction is changed.

[0027] Referring to Figure 3 The gear shaft 8 is fixedly connected to the driving gear 14 and the driven gear 15, the gear shaft 8 is fixedly connected with the push rod 9 and the sector block 10, the rotating shaft 12 is fixedly connected with the arc block 11, the arc block 11 is provided with a circular arc surface matched with the sector block 10, and a sliding groove matched with the push rod 9 is formed in the arc block 11. The circular motion of the gear shaft 8 is converted into the rotation of the rotating shaft 12 through the contact between the sector block 10 and the circular arc surface of the arc block 11 and the sliding of the push rod 9 in the sliding groove. The rotation angle and speed of the rotating shaft 12 can be accurately controlled, so that the rotation of the rotating block 3 connected with the rotating shaft 12 is realized. Since the rotating speed of the micro motor 16, the sizes of the transmission gear 13 and the driving gear 14 are precisely designed, when the gear shaft 8 on the driving gear 14 rotates to drive the push rod 9 to rotate the arc block 11 by 90 degrees, the arc-shaped brush 2 is driven to rotate to the front position of the probe 4, and the inner side of the arc-shaped brush 2 is matched with the surface of the probe 4. When the push rod 9 on the driven gear 15 reversely drives the arc block 11 to rotate by 90 degrees, the rotating shaft 12 is reversely rotated by 90 degrees, the arc-shaped brush 2 is recovered, and the rotating speed of the micro motor 16 and the servo motor 18 is adjusted. When the rotating block 3 rotates back and forth by 90 degrees, the probe 4 rotates two circles, the contact time of the arc-shaped brush 2 and the probe 4 is fully utilized, and the cleaning effect of the brush on the surface of the probe 4 is improved.

[0028] Referring to Figure 1 The receiving groove 5 matched with the arc-shaped brush 2 is formed in the side of the shell 1 close to the arc-shaped brush 2. When the rotating block 3 reversely rotates, the arc-shaped brush 2 is recovered into the receiving groove 5.

[0029] Referring to Figure 2 The telescopic bolt 6 is mounted on one side of the shell 1 and movably inserted into the arc-shaped brush 2. The arc-shaped brush 2 is fixed and released by the telescopic bolt 6, so that the arc-shaped brush 2 is prevented from accidentally rotating when it is not needed to rotate, and the stability and safety of the device are improved.

[0030] Referring to Figure 5The output end of the servo motor 18 is fixedly connected with a rotating rod 19, and a plurality of groups of annular conductive slip rings are arranged in the rotating rod 19 in the axial direction. The conductive slip rings are composed of fixed parts and rotating parts. The fixed parts are connected with power supply and signal transmission lines in the circuit mainboard in the shell 1, and the rotating parts are connected with the wiring end of the probe 4. When the servo motor 18 drives the rotating rod 19 to drive the probe 4 to rotate, the rotating part of the conductive slip ring rotates synchronously with the rotating rod 19, and the fixed part remains stationary and is in close contact with the conductive track through the brush in the conductive slip ring, so that the power supply to the probe 4 is continuous and stable during the rotation of the probe 4 by 720°, and the signals collected by the probe 4 can be accurately transmitted back to the signal processing system in the device. The problems of line winding and signal interruption caused by the rotation of the probe 4 are solved, and the electrical connection stability and signal transmission reliability of the device during the rotation cleaning and normal fire point detection of the probe are ensured. When the servo motor 18 rotates, the probe 4 is driven to rotate through the rotating rod 19, so that the surface of the probe 4 can be better contacted with the arc-shaped brush 2, and the arc-shaped brush 2 can clean the probe 4 comprehensively.

[0031] Working principle:

[0032] When it is necessary to clean the surface of the probe 4, the telescopic bolt 6 is pulled to release the fixation of the arc-shaped brush 2, so that the arc-shaped brush 2 can rotate freely. The external power supply of the micro motor 16 is connected, and the micro motor 16 starts to operate. The micro motor 16 drives the rotating block 3 connected thereto to start to rotate. Since the two ends of the arc-shaped brush 2 are fixedly connected with the rotating block 3, the arc-shaped brush 2 rotates synchronously with the rotating block 3 as the axis.

[0033] With the rotation of the rotating block 3, the trigger inclined block 7 fixed on one side of the rotating block 3 also rotates. When the rotating block 3 rotates by 90 degrees, the trigger inclined block 7 is just rotated to the position of abutting against the touch switch 17 fixedly connected with the inner top of the arc-shaped brush 2. The trigger inclined block 7 applies an external force to the touch switch 17 to trigger the touch switch 17, and then the servo motor 18 is started. The servo motor 18 drives the probe 4 to rotate through the rotating rod 19, so as to cooperate with the arc-shaped brush 2 to realize the cleaning work on the surface of the probe 4. When the probe 4 rotates by two turns, the arc-shaped block 11 is reversely rotated by 90 degrees through the reverse rod 9 on the driven gear 15, so that the rotating shaft 12 is reversely rotated by 90 degrees, drives the arc-shaped brush 2 to be recovered, and the trigger inclined block 7 no longer abuts against the touch switch 17. The servo motor 18 stops running.

[0034] At this time, the micro motor 16 is turned off, and then the telescopic bolt 6 is operated to be extended to fix the arc-shaped brush 2 again, so that the whole device returns to the initial preparation state, and waits for the next cleaning demand or continues the normal work of fire point detection.

Claims

1. A multi-frequency fire point detection device with early warning function, comprising a shell (1), a probe (4) is embedded on one side of the shell (1), characterized in that, The shell (1) one side is also clamped with arc-shaped brush (2), both ends of arc-shaped brush (2) are fixedly connected with rotating block (3), the top of rotating block (3) is connected with driving mechanism, the driving mechanism includes micro motor (16), one side of rotating block (3) is fixedly connected with trigger inclined block (7), the inner top of arc-shaped brush (2) is fixedly connected with touch switch (17), the touch switch (17) is connected with servo motor (18) through wire.

2. The multi-frequency fire point detection device with early warning function according to claim 1, characterized in that: The driving mechanism further includes connecting plate (20), one side of connecting plate (20) is rotatably connected with rotating shaft (12), the other side of connecting plate (20) is rotatably connected with driven gear (15) and driving gear (14), one side of driving gear (14) is provided with micro motor (16), the output shaft of micro motor (16) is fixedly connected with driving gear (14).

3. The multi-frequency fire point detection device with early warning function according to claim 2, characterized in that: The driven gear (15) and driving gear (14) are rotatably connected with transmission gear (13).

4. The multi-frequency fire spot detection device with early warning function according to claim 3, characterized in that: The driven gear (15) and driving gear (14) are rotatably connected with transmission gear (13).

5. The multi-frequency fire spot detection device with early warning function according to claim 2, characterized in that: The driven gear (15) and driving gear (14) are rotatably connected with transmission gear (13).

6. The multi-frequency fire point detection device with early warning function according to claim 1, characterized in that: The rotating shaft (12) is fixedly connected with arc-shaped block (11).

7. The multi-frequency fire spot detection device with early warning function according to claim 6, characterized in that: The shell (1) is rotatably connected with arc-shaped brush (2) on one side.

8. The multi-frequency fire point detection device with early warning function according to claim 1, characterized in that: The shell (1) is rotatably connected with arc-shaped brush (2) on one side. The output end of servo motor (18) is fixedly connected with rotating rod (19). The output end of servo motor (18) is fixedly connected with rotating rod (19).

Images