CN203299994U

CN203299994U - Monitoring device for preventing screw loosening

Info

Publication number: CN203299994U
Application number: CN2013203015705U
Authority: CN
Inventors: 尹智超; 魏开
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-29
Filing date: 2013-05-29
Publication date: 2013-11-20
Anticipated expiration: 2023-05-29

Abstract

The utility model is a monitoring device for preventing screw loosening and aims to solve the problem that a screw is easy to slip and loosen in use. The monitoring device comprises a casing, iron pieces, an alarm device and a power supply, wherein the casing is sleeved on a screw rod of a screw, the two iron pieces are embedded in the casing, the tops of the two iron pieces extend out of the casing and are close to a nut of the screw, the rear end of one iron piece is electrically connected with the power supply, the rear end of the other iron piece is connected with the alarm device through a wire, and the alarm device is electrically connected with the power supply. When the tops of the two iron pieces contact the nut, a circuit is switched on. The top ends of portions, protruding from the casing, of the iron pieces are consistent in height, and the alarm device is fixed at the bottom of the casing. A clamping piece is arranged in a position, in contact with the screw rod, on the inner wall of the casing. The inner wall of the casing is provided with internal threads. Screw loosening can be found timely and remedial measures can be taken timely to prevent accidents.

Description

Prevent the monitoring device of loosened screw

Technical field

The utility model relates to a kind of monitoring device, particularly relates to the monitoring device that a kind of nut loosening be used to preventing screw drops.

Background technology

Screw is parts of being commonly used in daily production or life, plays fixing effect, although structure is simple, the scope of its use is very extensive.When needs are screwed, generally, be all in order to make fixing parts relatively firmly and durable.But, the structures shape of screw it is easily loosening, particularly under constantly stressed state, loosening even dropping is all more common, under many circumstances, is difficult in time being found.In some important occasions, loosened screw likely can become irretrievable loss, so, when screw is installed, if can in time monitor the state of screw, generation that can well Accident prevention.

The utility model content

The purpose of this utility model is to solve screw in use easy stripped thread or loosening problem, a kind of monitoring device that prevents loosened screw is provided, utilizes this monitoring device, can find timely the situation of loosened screw, and adopt remedial measures timely, the generation of Accident prevention.

For achieving the above object, the technical solution adopted in the utility model is: the monitoring device that prevents loosened screw, comprise housing, iron plate, warning device and power supply, its middle shell is hollow columnar structures, be enclosed within on the screw rod of screw, iron plate is two, be embedded on housing, the nut of housing and close screw is stretched out at the top of two iron plates, the rear end of a slice iron plate is electrically connected to power supply, and another sheet iron plate rear end is connected with warning device by electric wire, and warning device is electrically connected to power supply, when the top of two iron plates contacts with nut, circuit communication.

In such scheme, the top height of the outstanding housing parts of described two iron plates is consistent, and described warning device is fixed on housing bottom.

In such scheme, the position that described inner walls contacts with screw rod, be provided with for housing firm be fixed on card on screw rod.

In such scheme, described inner walls is provided with internal thread, with screw flight, is connected.

Can find out from above-mentioned every technical characterictic of the present utility model, its advantage is: this apparatus structure is simple and practical, can adopt simple material to be made, and by special configuration design, can also play the effect of attractive, decorative, can play the effect of timely warning and prevention, the unpredictable accident generation that prevents loosened screw or drop and bring.

Description of drawings

The utility model will illustrate by way of compared with accompanying drawings and combined with example:

Fig. 1 is the utility model structural representation;

Wherein Reference numeral 1 is that housing 2 is that iron plate 3 is warning devices

The 4th, power supply 5 is that screw rod 6 is that nut 7 is cards.

Embodiment

The utility model is described further by embodiment below in conjunction with accompanying drawing.

Preferred embodiment

A kind of monitoring device that prevents loosened screw of the present utility model, as shown in Figure 1, when screw is in mounted state, this monitoring device is enclosed within the screw tip of screw, make the top of two iron plates near nut, if nut loosening, can contact with iron plate, when nut all contacts with two iron plates, by iron plate, warning device, power supply and nut, just formed a circuit loop, after circuit was connected, warning device started to report to the police, and plays timely reminding effect.

Fixing not loosening in order to prevent this housing and screw rod, can card be set at the position that inner walls is connected with screw rod, or adopt other slippage prevention device, purpose is to be connected to closely housing on screw rod; Be in diverse location on screw rod for the screw rod that adapts to various different lengths and at the thing nut that different-thickness is installed, we can be designed to female thread structure with inner walls, can better be enclosed within on screw rod, the dual combination of internal thread and card, can well guarantee that installation site does not produce displacement.

Disclosed all features in this instructions, except mutually exclusive feature, all can make up by any way.

Disclosed arbitrary feature in this instructions (comprising any accessory claim, summary and accompanying drawing), unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or similar characteristics.

Claims

1. prevent the monitoring device of loosened screw, it is characterized in that: comprise housing, iron plate, warning device and power supply, its middle shell is hollow columnar structures, is enclosed within on the screw rod of screw, iron plate is two, be embedded on housing, the nut of housing and close screw is stretched out at the top of two iron plates, and the rear end of a slice iron plate is electrically connected to power supply, another sheet iron plate rear end is connected with warning device by electric wire, warning device is electrically connected to power supply, when the top of two iron plates contacts with nut, and circuit communication.

2. the monitoring device that prevents loosened screw according to claim 1 is characterized in that: the top height of the outstanding housing parts of described two iron plates is consistent, and described warning device is fixed on housing bottom.

3. the monitoring device that prevents loosened screw according to claim 1 and 2 is characterized in that: the position that described inner walls contacts with screw rod, be provided with for housing firm be fixed on card on screw rod.

4. the monitoring device that prevents loosened screw according to claim 3, it is characterized in that: described inner walls is provided with internal thread, with screw flight, is connected.