Alarm with dustproof structure

Abstract

The utility model relates to the technical field of alarms, and discloses an alarm with a dustproof structure, which comprises a mounting rack, a sound production mechanism mounted in the mounting rack, and a light-emitting mechanism mounted at the top of the mounting rack, a protective shell is mounted on the surface of the mounting rack, a positioning groove is formed in the top of the mounting rack, and a dustproof cover is mounted in the positioning groove. A positioning ring is slidably connected to an inner cavity of the positioning groove, a gear ring is fixedly connected to the top of the positioning ring, and a limiting mechanism is installed in an inner cavity of the gear ring. Under the cooperation of a micro motor, a cleaning roller and a spur gear, a gear ring can drive the protective shell to rotate, the protective shell is cleaned under the action of the cleaning roller, dust on the surface of the protective shell is effectively reduced, meanwhile, under the action of a limiting mechanism, personnel can disassemble and assemble the protective shell more conveniently, and the working efficiency is improved. The maintenance efficiency of the alarm is improved, and the problems that when an existing alarm is used, the warning effect is poor, and the applicability is poor are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of alarm, concretely to an alarm with dustproof structure. BACKGROUND

[0002] The sound and light signals can more effectively attract people's attention, especially in noisy environments. The sound and light alarm consumes less energy during operation and has strong anti-noise interference ability, ensuring that it can clearly send alarm signals in noisy environments. It can be used continuously for a long time, is durable and easy to transmit signals remotely. It can be installed in a ceiling or wall-mounted according to actual needs to adapt to different installation environments. The sound and light alarm is mainly used in potentially dangerous areas, such as around high-temperature and high-pressure equipment, highways, road entrances, underground tunnels, and oil and chemical industries.

[0003] However, some existing alarms accumulate dust on their surfaces when used in environments with a lot of dust or foreign matter. Long-term dust accumulation can reduce the light transmittance of the protective shell, affecting the transmission of light signals and reducing the warning effect of the alarm, which affects the applicability of the alarm.

[0004] In addition, the light-emitting mechanism of some existing alarms needs to be repaired in time after long-term use. However, the light-emitting mechanism is often blocked by the protective shell. The protective shell is usually installed using a threaded method, which makes it inconvenient for users to disassemble and assemble the protective shell, thereby reducing the repair efficiency of the alarm. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an alarm with a dustproof structure to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an alarm with a dustproof structure, comprising a mounting frame and a sound-emitting mechanism mounted inside the mounting frame,

[0007] A light-emitting mechanism is mounted on the top of the mounting frame. A protective shell is mounted on the surface of the mounting frame. A positioning groove is formed on the top of the mounting frame. A positioning ring is slidably connected in the inner cavity of the positioning groove. A gear ring is fixedly connected to the top of the positioning ring. A limiting mechanism is installed in the inner cavity of the gear ring.

[0008] A micro motor is bolted to the top of the inner cavity of the mounting frame. A rotating rod is fixedly connected to the output shaft of the micro motor. A cleaning roller is fixedly connected to the top of the rotating rod. A spur gear is fixedly connected to the bottom of the rotating rod.

[0009] Preferably, the limiting mechanism comprises a clamping groove in the inner cavity of the gear ring and a positioning rod fixed to the surface of the protective shell, and the bottom of the inner cavity of the clamping groove is fixedly connected with a positioning block.

[0010] Preferably, the top of the mounting frame is fixedly connected with a blocking shell, and the blocking shell is used in cooperation with the cleaning roller.

[0011] Preferably, the top of the inner cavity of the blocking shell is fixedly connected with a bearing seat, and the other end of the bearing seat is fixedly connected with the top of the rotating rod.

[0012] Preferably, the surface of the positioning ring and the cross-sectional shape of the inner cavity of the positioning groove are both designed as L-shaped structures, and the positioning groove is used in cooperation with the positioning ring.

[0013] Preferably, the material of the positioning block is rubber, and the top of the positioning block is designed as an arc-shaped structure.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] The micro motor, the cleaning roller and the spur gear are cooperated, so that the gear ring drives the protective shell to rotate, the protective shell is cleaned under the action of the cleaning roller, the dust on the surface of the protective shell is effectively reduced, the warning effect of the device is improved, the personnel can be more convenient when disassembling the protective shell under the action of the limiting mechanism, the maintenance efficiency of the alarm is effectively improved, the applicability of the alarm is improved, and the problems of poor warning effect and poor applicability of the existing alarm during use are solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view in the utility model;

[0017] Figure 2 It is a local three-dimensional sectional structure schematic view in the utility model;

[0018] Figure 3 It is a local three-dimensional sectional structure schematic view in the utility model;

[0019] Figure 4 It is a local three-dimensional sectional structure schematic view in the utility model.

[0020] In the drawing: 1, mounting frame; 2, sound generating mechanism; 3, light emitting mechanism; 4, protective shell; 5, positioning groove; 6, positioning ring; 7, gear ring; 8, limiting mechanism; 81, clamping groove; 82, positioning rod; 83, positioning block; 9, micro motor; 10, rotating rod; 11, cleaning roller; 12, spur gear; 13, bearing seat; 14, blocking shell. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection range of the utility model.

[0022] Please refer to Figures 1-4As shown, an alarm with dustproof structure, including mounting frame 1, one side of mounting frame 1 is installed for fixed lug, under the action of which the mounting frame 1 can be fixed on the object, the inside of mounting frame 1 is installed with sound emitting mechanism 2, sound emitting mechanism 2 can emit sound, so as to remind the surrounding personnel, the top of mounting frame 1 is installed with light emitting mechanism 3, sound emitting mechanism 2 and light emitting mechanism 3 are used in cooperation, under the action of which the surrounding personnel can be reminded through the cooperation of sound and light, the surface of mounting frame 1 is installed with protective shell 4, protective shell 4 can protect light emitting mechanism 3, so that foreign matter cannot easily contact with light emitting mechanism 3, avoid light emitting mechanism 3 easily damaged to affect the service life of the alarm, the top of mounting frame 1 is provided with positioning groove 5, the inner cavity of positioning groove 5 is slidably connected with positioning ring 6, the top of positioning ring 6 is fixedly connected with gear ring 7, under the cooperation of positioning ring 6 and positioning groove 5, gear ring 7 can be limited, so that its position deviation cannot easily occur when rotating, effectively improve the stability of gear ring 7, the profile shape of the surface of positioning ring 6 and the inner cavity of positioning groove 5 are both L-shaped structure design, positioning groove 5 and positioning ring 6 are used in cooperation, under the action of which the positioning groove 5 can limit the positioning ring 6 through the shape, so that the positioning ring 6 can be more stable when rotating, the inner cavity of gear ring 7 is installed with limiting mechanism 8, limiting mechanism 8 and protective shell 4 are used in cooperation, under the action of which the protective shell 4 can be limited through the cooperation of limiting mechanism 8, so that its position deviation cannot easily occur, and when the light emitting mechanism 3 needs to be overhauled, the protective shell 4 can be conveniently removed, so that the staff can be more convenient when overhauling the light emitting mechanism 3, the top of the inner cavity of mounting frame 1 is bolted with micro motor 9, the output shaft of micro motor 9 is fixedly connected with rotating rod 10, the other end of rotating rod 10 penetrates to the outside of mounting frame 1 and is rotatably connected with the inner wall of the penetrating part thereof, the upper surface of rotating rod 10 is fixedly connected with cleaning roller 11, the surface of cleaning roller 11 is movably connected with the surface of protective shell 4, cleaning roller 11 is of flexible structure design, under the action of which the surface of protective shell 4 can be cleaned through the cooperation of micro motor 9 and rotating rod 10, so that the surface thereof can be more clean, reducing the condition that the surface of protective shell 4 has more foreign matter and affects the subsequent warning effect, the lower surface of rotating rod 10 is fixedly connected with spur gear 12, spur gear 12 and gear ring 7 are intermeshed, under the action of which the spur gear 12 can be driven to rotate when the rotating rod 10 rotates, so that the gear ring 7 can drive the protective shell 4 to rotate under the cooperation of limiting mechanism 8, so that the protective shell 4 and cleaning roller 11 rotate at the same time, so as to improve the cleaning effect of protective shell 4, the top of mounting frame 1 is fixedly connected with blocking shell 14, blocking shell 14 and cleaning roller 11 are used in cooperation, under the action of which the foreign matter can be blocked through the cooperation of blocking shell 14, so that cleaning roller 11 can be more clean, reducing the condition that the surface of cleaning roller 11 has more dust when placed for a long time and affects the subsequent cleaning of protective shell 4,The top of the inner cavity of the blocking shell 14 is fixedly connected with a bearing seat 13, and the other end of the bearing seat 13 is fixedly connected with the top of the rotating rod 10. Under the action, the rotating rod 10 can be supported through the cooperation of the bearing seat 13, so that the rotating rod 10 can be more stable during rotation, and the cleaning effect of the cleaning roller 11 on the protective shell 4 is avoided. The cleaning roller 11 is not stable during rotation.

[0023] The limiting mechanism 8 comprises a clamping groove 81 opened in the inner cavity of the gear ring 7, and the surface of the protective shell 4 is fixedly connected with a positioning rod 82. The surface of the positioning rod 82 is in sliding connection with the inner wall of the clamping groove 81. Under the action, the positioning rod 82 can be embedded in the inside of the clamping groove 81, and then the protective shell 4 is rotated to drive the positioning rod 82 to move to the inside of the clamping groove 81, so as to limit the protective shell 4. The bottom of the inner cavity of the clamping groove 81 is fixedly connected with a positioning block 83, and the material of the positioning block 83 is rubber. The top of the positioning block 83 is designed in an arc shape. Under the action, the positioning rod 82 can be blocked by the cooperation of the positioning block 83, so that the positioning rod 82 cannot easily move in the inside of the clamping groove 81. Under the action of shape and material, the positioning block 83 can be deformed when the force is large, so that the positioning rod 82 can move in the inside of the clamping groove 81 when the force is large.

[0024] It is worth noting that the mounting frame 1, the sound generating mechanism 2, the light emitting mechanism 3 and the protective shell 4 in the technical scheme should be regarded as prior art. The specific structure, working principle and possible control mode and spatial arrangement mode of these technical features can be selected by using conventional methods in the art, and the technical scheme will not be further expanded and described in detail.

[0025] Working principle: first, the alarm is installed in a suitable position for use, and then the surface of the protective shell 4 needs to be cleaned after long-term use. Start the micro motor 9 to drive the cleaning roller 11 to rotate through the cooperation of the rotating rod 10, and under the cooperation of the rotating rod 10 and the spur gear 12, the gear ring 7 can be rotated, so that it can drive the protective shell 4 to rotate. The dust and other foreign matters on the surface of the protective shell 4 are cleaned under the cooperation of the cleaning roller 11, effectively improving the cleanliness of the protective shell 4, and improving the applicability of the alarm. When the protective shell 4 needs to be replaced, the worker can control the gear ring 7 to make it not rotate, then rotate the protective shell 4 to drive the positioning rod 82 to rotate, and when the positioning block 83 is under great stress, it will deform and no longer block the positioning rod 82. Then according to the shape of the clamping groove 81, the protective shell 4 is taken out, and then a suitable protective shell 4 is selected for reinstallation.

[0026] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0027] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. An alarm with dustproof structure, comprising a mounting frame (1) and a sound emitting mechanism (2) mounted in the mounting frame (1), characterized in that: a light emitting mechanism (3) is mounted on the top of the mounting frame (1), the surface of the mounting frame (1) is mounted with a protective shell (4), the top of the mounting frame (1) is provided with a positioning groove (5), the inner cavity of the positioning groove (5) is slidably connected with a positioning ring (6), the top of the positioning ring (6) is fixedly connected with a gear ring (7), the inner cavity of the gear ring (7) is mounted with a limiting mechanism (8); a micro motor (9) is bolted to the top of the inner cavity of the mounting frame (1), the output shaft of the micro motor (9) is fixedly connected with a rotating rod (10), the upper surface of the rotating rod (10) is fixedly connected with a cleaning roller (11), and the lower surface of the rotating rod (10) is fixedly connected with a spur gear (12).

2. The alarm with dustproof structure according to claim 1, characterized in that: The limiting mechanism (8) comprises a clamping groove (81) formed in the inner cavity of the gear ring (7) and a positioning rod (82) fixed to the surface of the protective shell (4), and the inner cavity of the clamping groove (81) is fixedly connected with a positioning block (83).

3. The alarm with dustproof structure according to claim 1, characterized in that: The top of the mounting frame (1) is fixedly connected with a blocking shell (14), and the blocking shell (14) is used in cooperation with the cleaning roller (11).

4. The alarm with dustproof structure according to claim 3, characterized in that: The inner cavity of the blocking shell (14) is fixedly connected with a bearing seat (13), and the other end of the bearing seat (13) is fixedly connected with the top of the rotating rod (10).

5. The alarm with dustproof structure according to claim 1, characterized in that: The surface of the positioning ring (6) and the inner cavity of the positioning groove (5) are both designed in L-shaped structure, and the positioning groove (5) is used in cooperation with the positioning ring (6).

6. The alarm with dustproof structure according to claim 2, characterized in that: The material of the positioning block (83) is rubber, and the top of the positioning block (83) is designed in arc-shaped structure.

Images