CN209962944U

CN209962944U - Water flow overflow alarm switch device

Info

Publication number: CN209962944U
Application number: CN201921106009.5U
Authority: CN
Inventors: 翁国栋; 张嘉恩; 章明辉; 章建红
Original assignee: Hangzhou Wintoursmart Intelligent Technology Co Ltd
Current assignee: Hangzhou Wintoursmart Intelligent Technology Co Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-01-17
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses a rivers overflow alarm switch device aims at providing a movable contact, decides contact and water contactless, can not receive the water corrosion, and the accurate reliable overflow alarm switch of overflow warning. The overflow pipe comprises an overflow pipe, wherein the end part of the overflow pipe is rotatably connected with a trigger connecting rod and a cover plate, the trigger connecting rod comprises a long connecting rod and a short connecting rod, the long connecting rod and the short connecting rod are connected into an L shape, the long connecting rod is connected with a movable contact, the outer surface of the side wall of the overflow pipe is connected with a fixed contact, the short connecting rod is tightly attached to the cover plate, the movable contact is normally closed with the fixed contact, the cover plate rotates, and the. The utility model discloses beneficial effect does: the switch contact can not contact with water, can not receive overflow damage, and overflow warning is accurate reliable. Simple and reasonable structure and low manufacturing cost. Good repeatability and low use cost. The application range is wide.

Description

Water flow overflow alarm switch device

Technical Field

The utility model belongs to the technical field of supply with water correlation technique and specifically relates to indicate a structure of rivers overflow alarm switch.

Background

Water from water works is difficult to supply directly to high-rise buildings in residential areas, and is generally solved by secondary water supply. The secondary water supply requires a secondary water tank. Tap water is supplied to the secondary water tank through the booster pump, and the secondary water tank stores water and then supplies water to a high-rise building. The water supply to the secondary water tank needs to automatically control the start and stop of the booster pump, and the automatic control in the prior art is realized by a floating ball. The floating ball is influenced by interference factors, so that the control precision is not high. In order to achieve accurate control, the prior art is additionally provided with sensor auxiliary detection and control. The sensors are mostly mounted on the overflow pipe. Chinese patent No. CN208151276U, grant publication date 2018, 11 month 27, discloses an overflow system. The device comprises a water seal tank for containing water for dust removal, at least two overflow pipes communicated with the water seal tank, a drainage pipe communicated with the overflow pipes, and a water accumulation tank communicated with the tail ends of the drainage pipes, wherein the distance between each overflow pipe and the top end of the water seal tank is different, and each overflow pipe is provided with an alarm device which comprises a water flow detector arranged in each overflow pipe, a water flow controller electrically connected with the water flow detector and a warning device electrically connected with the water flow controller. Because the water has complex components, the water flow detector is easy to corrode and damage when contacting with water, thereby causing failure.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome prior art rivers overflow switch and water contact and easily impaired, cause the not enough of control inefficacy, provide a rivers overflow alarm switch device that can not receive the water damage, reach and improve the accurate reliable purpose of rivers overflow warning.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a rivers overflow alarm switch device, it includes the overflow pipe, overflow pipe tip rotatable coupling has trigger connecting rod and apron, triggers the connecting rod and includes long connecting rod and short connecting rod, and long connecting rod and short connecting rod connect into L shape, and long connecting rod is connected with the movable contact, and overflow pipe lateral wall surface is connected with the fixed contact, and the short connecting rod pastes closely with the apron, and the movable contact is with the fixed contact normal close, and the apron rotates, and the movable contact is with the fixed contact disconnection. The overflow pipe has no water flowing out, the movable contact and the fixed contact are normally closed, and no alarm is given; the overflow pipe has water outflow, and the apron rotates, and the movable contact breaks off with the fixed contact, and the overflow reports to the police. The movable contact and the fixed contact are not in contact with water, so that the water cannot be corroded, and the overflow alarm is accurate and reliable. Simple and reasonable structure, good repeatability and wide application range.

Preferably, the cover plate is disc-shaped, the two ends of the diameter of the cover plate are fixedly connected with a cover plate rotating shaft, and the cover plate rotating shaft is rotatably connected with the end part of the overflow pipe.

Preferably, the cross section of the cover plate is trapezoidal, and the lower bottom of the trapezoid is larger than the upper bottom; the overflow pipe does not overflow, and the cover plate is restored by the self weight and is tightly covered with the overflow pipe, so that the normally closed state of the movable contact and the fixed contact is realized, and the overflow-free alarm is realized.

Preferably, the side surface of the long connecting rod is fixedly connected with a boss, the boss is fixedly connected with a connecting rod rotating shaft, the outer surface of the side wall of the overflow pipe is fixedly connected with a connecting lug, and the connecting rod rotating shaft is rotatably connected with the connecting lug; the manufacture and the installation are convenient.

Preferably, the end face of the overflow pipe is an inclined surface, and the inclined surface forms a horn-shaped structure of the port of the overflow pipe; the trigger connecting rod is flexible to rotate, and the alarm is timely and reliable.

Preferably, the outer surface of the side wall of the overflow pipe is fixedly connected with a spring, and the spring is connected with the lower surface of the long connecting rod; when the cover plate rotates, the trigger connecting rod is acted by the spring force to rotate rapidly, so that the movable contact and the fixed contact are ensured to be disconnected in time, and the alarm is given in time.

The utility model has the advantages that: the switch contact can not contact with water, can not receive overflow damage, and overflow warning is accurate reliable. Simple and reasonable structure and low manufacturing cost. Good repeatability and low use cost. The application range is wide.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is a cross-sectional view taken at C-C of FIG. 1;

FIG. 4 is an enlarged view of B of FIG. 1;

FIG. 5 is an enlarged view of D in FIG. 2;

fig. 6 is the connection diagram of the utility model during alarming.

In the figure: 1. the structure of the liquid crystal display panel comprises an overflow pipe, 2 parts of a trigger connecting rod, 3 parts of a cover plate, 4 parts of a fixed contact, 5 parts of a spring, 11 parts of a connecting lug, 12 parts of an inclined surface, 13 parts of a cover plate connecting boss, 21 parts of a long connecting rod, 22 parts of a short connecting rod, 23 parts of a boss, 24 parts of a connecting rod rotating shaft, 31 parts of a cover plate inclined surface, 32 parts of a cover plate rotating shaft and 211 parts of a movable contact.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

Example 1:

as shown in fig. 1 to 6, a water overflow alarm switch device includes an overflow pipe 1. The overflow pipe 1 is communicated with the upper end of a secondary water supply tank (not shown). The overflow pipe 1 is horizontally arranged. The end part of the overflow pipe 1 is rotatably connected with a cover plate 3. The end surface of the overflow pipe 1 is provided with a cover plate connecting boss 13. The cover plate connecting bosses 13 are positioned at two ends of the horizontal diameter of the overflow pipe 1 and protrude the end surface of the overflow pipe 1. The cover plate connecting boss 13 is provided with a cover plate connecting boss hole. The two cover plate connecting boss holes are symmetrically arranged by taking the central axis of the overflow pipe 1 as a symmetry axis. The cover plate 3 is disc-shaped. The two ends of the diameter of the cover plate 3 are fixedly connected with a cover plate rotating shaft 32. Two cover plate rotation shafts 32 are located at both ends of the horizontal diameter of the cover plate 3. The cover plate rotating shaft 32 is inserted into the cover plate connecting boss hole, and the cover plate rotating shaft 32 is rotatably connected with the end part of the overflow pipe 1.

The cross section of the cover plate 3 is trapezoidal, and the lower bottom of the trapezoid is larger than the upper bottom. The cross section of the cover plate 3 is rectangular above the horizontal diameter, and the cross section of the cover plate is right-angled trapezoid below the horizontal diameter. The trapezoidal slope is a cover slope 31. The cover plate slope 31 is located on the left side of the cover plate 3. Because the inclined surface 31 of the cover plate exists, the lower part of the cover plate 3 is heavy, and when no external force acts, the cover plate 3 can automatically recover to the position where the central axis of the cover plate 3 is superposed with the central axis of the overflow pipe 1 by means of dead weight.

The end part of the overflow pipe 1 is rotatably connected with a trigger connecting rod 2. The trigger link 2 includes a long link 21 and a short link 22. The long link 21 and the short link 22 are connected in an L-shape. The long link 21 is strip-shaped. The side of the long connecting rod 21 is fixedly connected with a boss 23. The bosses 23 are paired and located on two respective planes of the long link 21 parallel to the central axis of the overflow pipe 1. The boss 23 is fixedly connected with a connecting rod rotating shaft 24. One end of each of the pair of link shafts 24 is fixed to the boss 23, and the other end is suspended. The outer surface of the side wall of the overflow pipe 1 is fixedly connected with a connecting lug 11. The engaging lugs 11 are formed in a pair on the outer surfaces of the side walls of the upper end of the overflow pipe 1. The connecting ear 11 is provided with a connecting ear hole. The hanging end of the connecting rod rotating shaft 24 is inserted into the connecting lug hole, and the connecting rod rotating shaft 24 is rotatably connected with the connecting lug 11. The long link 21 is connected with a movable contact 211. The movable contact 211 is located on the lower surface of one end of the long link 21, which is the other end of the long link 21 connected to the short link 22. The movable contact 211 is electrically connected to a controller (not shown). The outer surface of the side wall of the overflow pipe 1 is connected with a fixed contact 4. The fixed contact 4 is positioned at the top end of the outer surface of the side wall of the overflow pipe 1. The fixed contact 4 is electrically connected to a controller (not shown). When no water flows over the overflow pipe 1, the diameter of the cover plate 3 is vertical to the central axis of the overflow pipe 1. The long connecting rod 21 is parallel to the central axis of the overflow pipe 1. The long connecting rod 21 is closely attached to the outer surface of the side wall of the upper end of the overflow pipe 1, the movable contact 211 is closely attached to the fixed contact 4, and the movable contact 211 and the fixed contact 4 are normally closed. In this case, the short link 22 is perpendicular to the central axis of the overflow pipe 1. The short connecting rod 22 is tightly attached to the cover plate 3.

The outer surface of the side wall of the overflow pipe 1 is fixedly connected with a spring 5. The spring 5 is located at the top of the outer surface of the side wall of the overflow tube 1, near the stationary contact 4. One end of the spring 5 is fixed with the outer surface of the side wall of the overflow pipe 1, and the other end is connected with the lower surface of the long connecting rod 21. The end surface of the overflow pipe 1 is an inclined surface 12. The inclined surface 12 is located on the end surface of the overflow pipe 1 connected to the cover plate 3. The inclined surface 12 forms the port of the overflow pipe 1 into a trumpet-shaped structure. The bell mouth close to the outer surface of the side wall of the overflow pipe 1 is large, and the bell mouth close to the inner surface of the side wall of the overflow pipe 1 is small.

When no water flows over the overflow pipe 1 (as shown in fig. 3), the diameter of the cover plate 3 is perpendicular to the central axis of the overflow pipe 1. The left surface of the upper part of the cover plate 3 is tightly attached to the short connecting rod 22, the self weight of the cover plate 3 overcomes the elastic force of the spring 5, so that the long connecting rod 21 is tightly attached to the outer surface of the side wall of the upper end of the overflow pipe 1, the movable contact 211 and the fixed contact 4 are normally closed, and no alarm is given. When water flows over the overflow pipe 1 (indicated by the dotted arrow in fig. 6), the cover plate 3 rotates to break the balance between the self weight of the cover plate 3 and the elastic force of the spring 5. Because of the existence of the inclined surface 12, the port of the overflow pipe 1 is formed into a horn shape, the trigger connecting rod 2 is easy to rotate, the suspended end of the short connecting rod 12 rotates towards the overflow pipe 1 along with the cover plate 3, the suspended end of the long connecting rod 21 upwarps, the movable contact 211 is disconnected with the fixed contact 4, and the overflow alarm is given.

Claims

1. The utility model provides a rivers overflow alarm switch device, it includes overflow pipe (1), characterized by: overflow pipe (1) tip rotatable coupling has trigger connecting rod (2) and apron (3), trigger connecting rod (2) and connect into L shape including long connecting rod (21) and short connecting rod (22), long connecting rod (21) are connected with movable contact (211), overflow pipe (1) lateral wall surface is connected with stationary contact (4), short connecting rod (22) are pasted tightly with apron (3), movable contact (211) and stationary contact (4) normally closed, apron (3) rotate, movable contact (211) and stationary contact (4) disconnection.

2. The water flow overflow alarm switch device of claim 1, wherein: the cover plate (3) is disc-shaped, the two ends of the diameter of the cover plate (3) are fixedly connected with a cover plate rotating shaft (32), and the cover plate rotating shaft (32) is rotatably connected with the end part of the overflow pipe (1).

3. A water flow overflow alarm switch device as claimed in claim 1 or 2, wherein: the cross section of the cover plate (3) is trapezoidal, and the lower bottom of the trapezoid is larger than the upper bottom.

4. The water flow overflow alarm switch device of claim 1, wherein: long connecting rod (21) side rigid coupling has boss (23), and boss (23) rigid coupling has connecting rod pivot (24), overflow pipe (1) lateral wall surface rigid coupling has engaging lug (11), connecting rod pivot (24) and engaging lug (11) rotatable coupling.

5. The water flow overflow alarm switch device of claim 1, wherein: the end face of the overflow pipe (1) is an inclined face (12), and the inclined face (12) forms a horn-shaped structure of the port of the overflow pipe (1).

6. The water flow overflow alarm switch device according to claim 1 or 4, wherein: the outer surface of the side wall of the overflow pipe (1) is fixedly connected with a spring (5), and the spring (5) is connected with the lower surface of the long connecting rod (21).