CN213874637U

CN213874637U - Vibration alarm switch

Info

Publication number: CN213874637U
Application number: CN202023211097.0U
Authority: CN
Inventors: 凡建超
Original assignee: Jinjie Ronghe Chengdu Electric Power Co ltd
Current assignee: Jinjie Ronghe Chengdu Electric Power Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-08-03
Anticipated expiration: 2030-12-28

Abstract

The utility model relates to a vibration alarm switch, including shell and three pressure measurement probe, be provided with the control panel in the shell, three pressure measurement probe one end and shell swing joint side by side, the length of the three pressure measurement probe other end apart from the shell is unequal, and the control panel is including MCU, signal amplification module, AD conversion module, impulse generation circuit and passive buzzer, the pressure measurement probe with signal amplification module electricity is connected, and signal amplification module, AD conversion module reach impulse generation circuit is connected with the MCU electricity respectively, and impulse generation circuit is connected with passive buzzer electricity. The utility model discloses set up the pressure measurement probe of three different length, utilize the pressure measurement probe to survey the object amplitude to with vibration signal transmission to control panel in, distinguish the signal that different pressure measurement probes sent by the threshold value control module in the control panel, judge unit pump vibration level, buzzer correspondence sends different warning information, the maintainer of being convenient for sets for earlier maintenance order, and the suitability is stronger.

Description

Vibration alarm switch

Technical Field

The utility model relates to the technical field of switches, especially, relate to a vibration alarm switch.

Background

A vibration switch, also called a vibration sensor, is an element that converts mechanical vibration or displacement of an object into an electrical signal for output. Its shadow is seen in many common electrical devices, such as vehicle burglar alarms, vehicle-mounted GPS locators, and the like. The conventional vibration switch can be classified into a mechanical vibration switch and an electronic vibration switch. When the existing vibration switch is installed on a unit air pump, warning information can be sent according to the vibration strength, or an alarm is sounded comprehensively, a warning effect is achieved, and maintenance of maintenance personnel is facilitated. However, the conditions of slight friction, collision, impact and the like cannot be distinguished according to the vibration intensity, and the maintenance personnel cannot master the actual condition of the air pump of the unit.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a vibration alarm switch for the case where the existing vibration switch cannot effectively distinguish the vibration intensity.

The utility model provides a vibration alarm switch, includes shell and three pressure measuring probe, be provided with the control panel in the shell, it is three pressure measuring probe one end with the shell is swing joint side by side, three the pressure measuring probe other end distance the length of shell is unequal, the control panel is including MCU, signal amplification module, AD conversion module, impulse generation circuit and passive buzzer, the pressure measuring probe with the signal amplification module electricity is connected, signal amplification module, AD conversion module reach impulse generation circuit respectively with the MCU electricity is connected, impulse generation circuit with passive buzzer electricity is connected.

Preferably, the shell comprises an upper cover and a base, the upper cover is detachably mounted at the upper end of the base, and a mounting groove for mounting the pressure measuring probe is formed in the lower end of the base.

Preferably, one end of the pressure measuring probe, which is connected with the shell, is provided with a spring, and the spring is clamped in the mounting groove.

Preferably, the shell is further provided with three indicator lights, and the indicator lights are electrically connected with the MCU.

Preferably, the housing is made of plastic.

The utility model discloses an useful part lies in: set up the pressure measurement probe of three different length, utilize the pressure measurement probe to survey the object amplitude to with vibration signal transmission to control panel in, distinguish the signal that different pressure measurement probes sent by the threshold value control module in the control panel, judge unit pump vibration level, buzzer correspondence sends different warning information, the maintainer of being convenient for sets for earlier and later maintenance order, the suitability is stronger.

Drawings

FIG. 1 is a schematic perspective view of a vibration alarm switch according to one embodiment;

FIG. 2 is a schematic diagram of a vibration alarm switch circuit;

fig. 3 is a perspective view of the base and the pressure measuring probe.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-3, a vibration alarm switch, includes shell 1 and three pressure measuring probe 2, be provided with control panel 3 in the shell 1, it is three 2 one end of pressure measuring probe with shell 1 swing joint side by side, it is three 2 other end distances of pressure measuring probe the length of shell 1 differs, control panel 3 is including MCU31, signal amplification module 32, AD conversion module 33, pulse generation circuit 34 and passive buzzer 35, pressure measuring probe 2 with signal amplification module 32 electricity is connected, signal amplification module 32, AD conversion module 33 reach pulse generation circuit 34 respectively with MCU31 electricity is connected, pulse generation circuit 34 is connected with passive buzzer 35 electricity. Specifically, in this embodiment, during installation, a fixing frame (not shown in the figure) is used to fixedly install the switch on the pump casing of the unit, the casing 1 is fixedly installed on the fixing frame through bolts, one end of each of the three pressure probes 2 is movably connected with the casing 1, and the other end of each of the three pressure probes 2 is spaced from the pump casing of the unit by a certain gap, it should be noted that the lengths of the three pressure probes 2 are different, and therefore, the gaps between the three pressure probes 2 and the pump casing of the unit are different. When the unit pump shell vibrates, the longest pressure measuring probe 2 at the end is firstly contacted with the unit pump shell to generate an electric signal, the electric signal is transmitted to the signal amplification module 32 to be amplified, the signal amplification module 32 is powered by a single power supply of 3.3V and has the characteristic of precise amplification, the electric signal is amplified and then is adjusted and processed, the electric signal is input to the AD conversion module 33, the AD conversion module 33 converts the electric signal into a digital signal and inputs the digital signal into the MCU31, the MCU31 is TB6806, and is a high-precision Multi-Mode (Multi-Mode) controlled constant-current constant-voltage (CC/CV) controller. The chip is internally provided with a power MOS, SOP/DIP-8 packaging is adopted, the number of system elements is reduced to the maximum extent, and the frequency modulation method is used for improving the system efficiency and reducing electromagnetic interference. The pulse generating circuit 34 is integrated on the control board 3, the model of the control chip is CD4069, and the peripheral circuit of the control chip is the prior art and will not be described herein again. The pulse generating circuit 34 correspondingly sends periodic pulse signals to the passive buzzer 35 according to signals sent by the MCU31, and the passive buzzer 35 then sounds. The three different pressure measuring probes 2 give different signals to the MCU31, the MCU31 then controls the pulse generating circuit 34 to send pulse signals with different periods, and the passive buzzer 35 sends different sound information, so that the warning effect is achieved for maintenance personnel, and the warning is completed.

As shown in fig. 1-2, the housing 1 includes an upper cover 11 and a base 12, the upper cover 11 is detachably mounted on the upper end of the base 12, and a mounting groove 121 for mounting the pressure measuring probe 2 is disposed at the lower end of the base 12. Specifically, in the present embodiment, the housing 1 is made of plastic, and the upper cover 11 is mounted on the base 12 by a bolt, so as to prevent dust from entering the housing 1.

As shown in fig. 2, a spring 21 is installed at one end of the pressure measuring probe 2 connected to the housing 1, and the spring 21 is clamped in the installation groove 121. Specifically, the end part of the pressure measuring probe 2 is provided with the spring 21, so that a buffering effect is achieved, and the pressure measuring probe 2 is prevented from being in hard contact with a pump shell of the unit which vibrates.

As shown in fig. 1 and 3, three indicator lights 4 are further disposed on the housing 1, and the indicator lights 4 are electrically connected with the MCU 31. Specifically, the indicator light 4 with different colors can be matched with the passive buzzer 35 to correspondingly emit different lights, thereby playing a warning role and facilitating the check of maintenance personnel.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A vibration alarm switch is characterized in that: including shell and three pressure measuring probe, be provided with the control panel in the shell, it is three pressure measuring probe one end with the shell is swing joint side by side, and is three the pressure measuring probe other end distance the length of shell is not equal, the control panel is including MCU, signal amplification module, AD conversion module, impulse generation circuit and passive buzzer, pressure measuring probe with the signal amplification module electricity is connected, signal amplification module, AD conversion module reach impulse generation circuit respectively with the MCU electricity is connected, impulse generation circuit with passive buzzer electricity is connected.

2. A vibration alarm switch according to claim 1, wherein: the shell comprises an upper cover and a base, the upper cover is detachably mounted at the upper end of the base, and a mounting groove for mounting the pressure measuring probe is formed in the lower end of the base.

3. A vibration alarm switch according to claim 2, wherein: and one end of the pressure measuring probe, which is connected with the shell, is provided with a spring, and the spring is clamped in the mounting groove.

4. A vibration alarm switch according to claim 3, wherein: the shell is also provided with three indicator lights, and the indicator lights are electrically connected with the MCU.

5. A vibration alarm switch according to claim 4, wherein: the housing is made of plastic.