CN210487013U

CN210487013U - Self-protection alarm switch for spring level meter

Info

Publication number: CN210487013U
Application number: CN201921446428.3U
Authority: CN
Inventors: 毛伟华; 戴钧; 康涛; 张燕飞
Original assignee: Nantong Haishi Shipping Machine Co ltd
Current assignee: Nantong Haishi Shipping Machine Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-05-08
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a formula of elasticity level gauge self preservation type alarm switch, including outer floater to and fix at the inside magnet steel of outer floater, alarm casing, connecting wire, the inside of alarm casing is provided with the mounting panel, fixed mounting has the tongue tube on the mounting panel, the inside of tongue tube is provided with normally open contact, normally closed contact, tongue piece, the one end of tongue piece is connected with ground contact, the center department the place ahead one side of tongue tube is provided with first magnet, center department rear one side of tongue tube is provided with second magnet. The utility model discloses in, through the inside tongue piece of dry reed under the influence of magnet steel relapse up-and-down motion, come and go the actuation between normally open contact and normally closed contact to reach the mesh of auto-lock warning.

Description

Self-protection alarm switch for spring level meter

Technical Field

The utility model relates to an alarm switch technical field especially relates to elasticity formula level gauge self preservation type alarm switch.

Background

The liquid level alarm is also called a floating ball liquid level switch, a water level controller and a liquid level switch, and is used for alarming and checking the water level by a mechanical or magnetic induction method, and can be used for controlling the starting or stopping of equipment such as a water pump and the like by an audible and visual alarm and the like or a magnetic alarm.

However, the existing liquid level alarm switch still has some defects, although the alarm purpose can be realized by the existing liquid level alarm, the self-locking function is lacked, the practicability of the liquid level alarm is reduced, secondly, the alarm sensitivity of the existing liquid level alarm is poor, and the using effect of the liquid level alarm is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the self-protection type alarm switch of the elastic liquid level meter is provided for solving the problems of self-locking alarm and poor sensitivity of a liquid level alarm.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

elasticity formula level gauge self preservation type alarm switch, including outer floater to and fix at the inside magnet steel of outer floater, alarm casing, connecting wire, the inside of alarm casing is provided with the mounting panel, fixed mounting has the tongue tube on the mounting panel, the inside of tongue tube is provided with normally open contact, normally closed contact, the tongue piece, the one end of tongue piece is connected with ground contact, the center department the place ahead one side of tongue tube is provided with first magnet, center department rear one side of tongue tube is provided with the second magnet.

As a further description of the above technical solution:

and an epoxy resin layer is arranged on the inner surface wall of the alarm shell.

As a further description of the above technical solution:

the normally open contact and the normally closed contact are located on one side of the center of the reed pipe, the end portions of the normally open contact and the normally closed contact penetrate through the horizontal inner surface wall of the reed pipe and extend to the outside, the tongue piece is located on the other side of the center of the reed pipe, and the end portions of the tongue piece penetrate through the horizontal inner surface wall of the reed pipe and extend to the outside and are connected with the grounding contact.

As a further description of the above technical solution:

the end of the tongue piece located in the reed pipe is located between the normally open contact and the normally closed contact.

As a further description of the above technical solution:

and one end of the alarm shell is provided with a connecting port.

As a further description of the above technical solution:

and a sealing ring is arranged at the contact part of the connecting port and the inside of the alarm shell.

As a further description of the above technical solution:

the first magnet and the second magnet are opposite in magnetism.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the setting of magnet steel, tongue tube, first magnet, second magnet, through the inside tongue piece of tongue tube under the influence of magnet steel up-and-down motion repeatedly, come and go the actuation between normally open contact and normally closed contact to reach the mesh that the auto-lock was reported to the police.

2. The utility model discloses in, through utilizing magnetic field to realize first magnet, second magnet and tongue tube actuation warning, sensitivity is higher, through the setting of the inside epoxy of alarm casing and sealing washer for the seal of alarm is good, and waterproof nature and corrosion resistance are stronger, have strengthened the fail safe nature of liquid level alarm switch.

3. The utility model discloses in, through the setting of floater, connecting wire, alarm casing for liquid level alarm switch volume is less, portable, and simple to operate has improved liquid level alarm switch's practicality

Drawings

Fig. 1 shows a schematic front view structure provided according to an embodiment of the present invention;

fig. 2 is a schematic diagram showing a sectional view of an alarm housing according to an embodiment of the present invention;

fig. 3 shows a schematic a-a structure provided according to an embodiment of the present invention;

fig. 4 shows a schematic B-B structure provided according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a cross-sectional view of a reed switch according to an embodiment of the present invention;

illustration of the drawings:

1. an outer floating ball; 2. an alarm housing; 3. a connecting wire; 4. mounting a plate; 5. a reed switch; 6. a ground contact; 7. a first magnet; 8. an epoxy resin layer; 9. a seal ring; 101. magnetic steel; 201. a connecting port; 501. a normally open contact; 502. a normally closed contact; 503. a tongue piece; 701. a second magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a self-protection alarm switch of a spring type liquid level meter comprises an outer floating ball 1 and a magnetic steel 101 fixed inside the outer floating ball 1, no matter how the polarity of the magnetic steel 101 is, as long as the magnetic steel 101 approaches to the vicinity of an alarm shell 2 according to a specified track, a reed switch 5 can generate the switching of a normally open contact 501 and a normally closed contact 502, so as to generate a switch control signal, and after the working magnetic steel 101 leaves the vicinity of the alarm shell 2, the switch can still maintain the state, so as to generate a self-protection effect, when the magnetic steel 101 approaches to the switch again from the opposite direction, the original state is destroyed, a new switch control signal is generated, the alarm shell 2, a connecting wire 3, a mounting plate 4 is arranged inside the alarm shell 2, the reed switch 5 is fixedly mounted on the mounting plate 4, the normally open contact 501, the normally closed contact 502 and a tongue 503 are arranged inside the reed switch 5, a first magnet 7 is arranged on one side in front of the center of the reed pipe 5, a second magnet 701 is arranged on one side behind the center of the reed pipe 5, the applicable temperature is less than or equal to one hundred twenty degrees, and the applicable voltage is less than or equal to two hundred fifty volts.

Specifically, as shown in fig. 5, the normally open contact 501 and the normally closed contact 502 are located on one side of the center of the reed pipe 5, the end portions of the normally open contact 501 and the normally closed contact 502 extend to the outside through the inner surface wall of the reed pipe 5 in the horizontal direction, the tongue piece 503 is located on the other side of the center of the reed pipe 5, the end portions of the tongue piece 503 extend to the outside through the inner surface wall of the reed pipe 5 in the horizontal direction and are connected with the ground contact 6, the end portion of the tongue piece 503 located in the reed pipe 5 is located between the normally open contact 501 and the normally closed contact 502, and the acting distance between the tongue piece 503 and the normally open contact 501 and the.

Specifically, as shown in fig. 1 and 2, a connection port 201 is provided at one end of the alarm housing 2, and is connected to the outer float 1 through a connection wire of the connection port 201.

Specifically, as shown in fig. 2, the inner surface wall of the alarm housing 2 is provided with an epoxy resin layer 8, and the connection port 201 is provided with a sealing ring 9 at a position contacting with the inside of the alarm housing 2, so that the inside of the alarm housing 2 is good in airtightness, waterproof and anticorrosive.

Specifically, as shown in fig. 3 and 4, the first magnet 7 and the second magnet 701 have opposite magnetism, so that the contact points in the reed pipe 5 are maintained in the existing state, but the reed pipe 5 cannot be attracted due to insufficient attraction force of the first magnet 7 and the second magnet 701, the reed pipe can be attracted only by the action of an external magnetic field, and the reed pipe is disconnected when the foreign magnetic field is applied.

The working principle is as follows: when the magnetic steel 101 moves upwards continuously, the tongue piece 503 on the grounding contact 6 of the reed pipe 5 is attracted by the first magnet 7, the contact maintains the current state, when the magnetic steel 101 moves downwards, the tongue piece 503 on the grounding contact 6 of the reed pipe 5 is attracted by the second magnet 701, the tongue piece 503 on the grounding contact 6 of the reed pipe 5 is attracted by the normally closed contact 502, at the moment, the normally closed contact 502 is in the closed state, the normally open contact 501 is in the open state, when the magnetic steel 101 moves downwards, the tongue piece 503 on the grounding contact 6 of the reed pipe 5 is attracted by the second magnet 701 due to the opposite magnetism of the first magnet 7 and the second magnet 701, the current situation of the contact is maintained, and the magnetic steel 101 repeatedly moves up and down, so that the aim of self-protection switch alarming is fulfilled.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Elasticity formula level gauge self preservation type alarm switch, including outer floater (1) to and fix magnet steel (101) outside inside floater (1), alarm casing (2), connecting wire (3), its characterized in that, the inside of alarm casing (2) is provided with mounting panel (4), fixed mounting has tongue tube (5) on mounting panel (4), the inside of tongue tube (5) is provided with normally open contact (501), normally closed contact (502), tongue piece (503), the one end of tongue piece (503) is connected with ground contact (6), center department the place ahead one side of tongue tube (5) is provided with first magnet (7), center department rear one side of tongue tube (5) is provided with second magnet (701).

2. The self-protection alarm switch of a resilient liquid level meter according to claim 1, wherein the inner surface wall of the alarm housing (2) is provided with an epoxy layer (8).

3. The self-protection alarm switch of the elastic liquid level meter according to claim 1, wherein the normally open contact (501) and the normally closed contact (502) are located on one side of the reed pipe (5) at the center, the end parts of the normally open contact and the normally closed contact extend to the outside through the horizontal inner surface wall of the reed pipe (5), the tongue piece (503) is located on the other side of the reed pipe (5) at the center, and the end parts of the normally open contact and the normally closed contact extend to the outside through the horizontal inner surface wall of the reed pipe (5) and are connected with the grounding contact (6).

4. The self-protection alarm switch of a spring type liquid level meter according to claim 3, wherein the end of the tongue piece (503) positioned in the reed pipe (5) is positioned between the normally open contact (501) and the normally closed contact (502).

5. The self-protection alarm switch of the elastic liquid level meter according to claim 1, wherein a connection port (201) is arranged at one end of the alarm housing (2).

6. The self-protection alarm switch of the elastic liquid level meter according to claim 5, wherein a sealing ring (9) is arranged at the contact part of the connecting port (201) and the inside of the alarm shell (2).

7. The self-protection alarm switch of a resilient liquid level meter according to claim 5, wherein the first magnet (7) and the second magnet (701) have opposite magnetism.