CN213781930U

CN213781930U - High-weather-resistance manhole cover opening and closing detection switch

Info

Publication number: CN213781930U
Application number: CN202023314701.2U
Authority: CN
Inventors: 曾松峰
Original assignee: Shanghai String Information Technology Co ltd
Current assignee: Shanghai String Information Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-07-23
Anticipated expiration: 2030-12-30

Abstract

A high weather-proof manhole cover opening and closing detection switch belongs to the technical field of detection switches and comprises a shell, a shaft body, a tension spring, a round magnet and a door magnet, wherein the shaft body penetrates through the rear two end parts of the shell and is arranged outside the shell; the spring is arranged in the shell, and the shaft body penetrates through the spring; the door magnet is arranged on the outer side wall of the shell and is close to the round magnet. The utility model relates to a rationally, simple structure compares other on-off detection device that adopt plastic material and zinc alloy material, and all materials adopt the stainless steel, and corrosion resistance is strong, more is fit for the adverse circumstances in the pit.

Description

High-weather-resistance manhole cover opening and closing detection switch

Technical Field

The utility model relates to a well lid detection switch in detection switch technical field, the characteristic is a high resistant type well lid open and close detection switch who waits who adopts stainless steel.

Background

At present traditional switching detection device is mostly the switch type detection device who adopts plastic material and zinc alloy material, only can adapt to some comparatively ideal environments, if install relatively abominable environment (probably intake, corrode) just can't normally work in the well lid, especially drag, pound to cause very big destruction and lead to equipment to damage to detection device when falling at the well lid.

Disclosure of Invention

The utility model discloses to prior art's is not enough, provides a high resistant type well lid switching detection switch of waiting, has not only solved and has installed the corrosion problems who causes in adverse circumstances in the pit, and traditional switch detection device adopts the structure of box to cause the problem of soaking water after intaking, has still solved the well lid and has dragged, damages detection device when pounding.

The utility model is realized by the following technical proposal, the utility model comprises a shell, a shaft body, a tension spring, a round magnet and a door magnet, wherein the two end parts are arranged outside the shell after the shaft body passes through the shell, the tension spring is arranged at one end of the shaft body, and the round magnet is arranged at the other end of the shaft body; the spring is arranged in the shell, and the shaft body penetrates through the spring; the door magnet is arranged on the outer side wall of the shell and is close to the round magnet.

Further, in the present invention, the material of the housing and the shaft body is stainless steel, including but not limited to 304 stainless steel.

Compared with the prior art, the utility model discloses have following beneficial effect and do: the utility model has reasonable design and simple structure, and compared with other switch-type detection devices which adopt plastic materials and zinc alloy materials, all the materials adopt stainless steel, so the utility model has strong corrosion resistance and is more suitable for the severe underground environment; the full-open structural design is adopted, the risk in the aspect of water and dust prevention is avoided, and long-term water soaking is irrelevant.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

wherein: 1. the magnetic door comprises a shell, 2, a shaft body, 3, a tension spring, 4, a spring, 5, a round magnet, 6 and a door magnet.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments of the present invention are based on the technical solution of the present invention and provide detailed embodiments and specific operation processes, but the scope of the present invention is not limited to the following embodiments.

Examples

As shown in fig. 1, the present invention comprises a housing 1, a shaft body 2, a tension spring 3, a spring 4, a round magnet 5, and a door magnet 6, wherein the shaft body 2 is disposed outside the housing 1 after passing through the housing 1, the tension spring 3 is disposed at one end of the shaft body 2, and the round magnet 5 is disposed at the other end of the shaft body 2; the spring 4 is arranged in the shell 1, and the shaft body 2 penetrates through the spring 4; the door magnet 6 is arranged on the outer side wall of the shell 1 and is close to the round magnet 5; the materials of the shell 1 and the shaft body 2 are 304 stainless steel.

The utility model discloses an in the implementation, under the normal operating condition, when the well lid put down, at first contact pressure buffering area's extension spring 3, axis body 2 after the well lid pushes down, follows also following the round magnet 5 on axis body 2 and removed, and door magnetism 6 detects round magnet 5 and leaves this moment, thinks this moment to be in the closed condition. When the well lid lifted up, spring 3 bounced stainless steel axis body 2, and door magnetism 6 detected circle magnet 5 this moment, thought to be in the open mode this moment. Use extension spring 3 in pressure buffering region, avoid stainless steel axis body 2 and well lid direct contact to cause the damage, it provides the one deck buffering. When the well lid lifts up, spring 3 restores the normal position with stainless steel axis body 2.

In the adverse circumstances in the pit, because shell simple structure, the design of full open type structure, all materials adopt 304 stainless steel, and corrosion resistance is strong, if face into water, when corroding the scheduling problem, more are fit for the adverse circumstances in the pit. In actual use, the novel structure designs a large neutral position stroke and a soft spring, has strong drag and smash resistance and is not easy to be damaged by external force.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims

1. The high weather-resistant manhole cover opening and closing detection switch comprises a shell (1) and a shaft body (2), wherein the shaft body (2) penetrates through two rear end parts of the shell (1) and is arranged outside the shell (1), the high weather-resistant manhole cover opening and closing detection switch is characterized by further comprising a tension spring (3), a spring (4), a round magnet (5) and a door magnet (6), the tension spring (3) is arranged at one end of the shaft body (2), and the round magnet (5) is arranged at the other end of the shaft body (2); the spring (4) is arranged in the shell (1), and the shaft body (2) penetrates through the spring (4); the door magnet (6) is arranged on the outer side wall of the shell (1) and is close to the round magnet (5).

2. The switch of claim 1, wherein the housing (1) and the shaft (2) are made of stainless steel.