CN103726771A

CN103726771A - Security door

Info

Publication number: CN103726771A
Application number: CN201310722252.0A
Authority: CN
Inventors: 顾燕萍
Original assignee: Suzhou Chengteng Electronic Science and Technology Co Ltd
Current assignee: Suzhou Chengteng Electronic Science and Technology Co Ltd
Priority date: 2013-12-24
Filing date: 2013-12-24
Publication date: 2014-04-16

Abstract

The invention discloses a security door and belongs to the field of security doors. The security door comprises a security door body. A milk box is embedded in the security door body. A power supply, a comparator and a triode are disposed in the milk box. A front door and a rear door are respectively disposed on the front side and the rear side of the milk box. A lock is disposed on the front door. A handle and an indicator lamp are disposed on the rear door. A weight sensor is disposed at the bottom of the milk box. One end of the comparator is connected with the weight sensor, and the other end thereof is connected to reference voltage. The output signal of the comparator controls the operation of the indicator lamp through the triode. By the security door, a user can take milk without going out, and when milk is placed into the milk box, the indicator lamp is on to remind the user of taking the milk timely.

Description

A kind of security door

Technical field

The present invention relates to a kind of security door, belong to security door field.

Background technology

At present, the milk box that great majority are ordered milk client is arranged on client house downstairs or entrance, and when people take milk, need to go out and even go downstairs, be not very convenient like this.Also have some clients to forget sometimes the milk taking out in milk box, milk is placed on for a long time in milk box and is easy to occur to go bad, and especially in summer, to ordering milk client, has caused loss.

Summary of the invention

The present invention is directed to the problem in background technology, propose a kind of security door of combination milk box.

The present invention, for overcoming the above problems, adopts following technical scheme:

A kind of security door, comprises security door main body, is embedded with a milk box in described security door main body, is provided with power supply, comparator and triode in milk box; The front and back of described milk box is respectively equipped with Qianmen and back door; Described Qianmen is provided with case lock; Described back door is provided with handle and indicator lamp; Described milk box bottom is provided with weight sensor; One end of described comparator is connected with weight sensor, the other end access reference voltage of comparator; The output signal of described comparator is worked by triode control indicator lamp.

Preferably, described indicator lamp adopts LED light.

Preferably, described power acquisition alkaline battery.

Technique effect:

1, can allow user is home-confined just gets milk, greatly facilitate and order milk user and get milk.

2, when having milk to put into milk box, LED light can be lighted automatically, and the reminding user milk of taking in time, to prevent that milk modification from causing damage to user.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention inner side.

Fig. 2 is the structural representation in the present invention outside.

Label title in Fig. 1, Fig. 2: 1, security door main body; 2, milk box; 3, Qianmen; 4, case lock; 5, back door; 6, handle; 7, indicator lamp; 8, weight sensor.

The specific embodiment

Below in conjunction with accompanying drawing, technical scheme of the present invention is done in further detail and is introduced:

Structure of the present invention as shown in Figure 1 and Figure 2, comprises security door main body 1, is embedded with a milk box 2 in described security door main body 1, is provided with power supply, comparator and triode in milk box 2; The front and back of described milk box 2 is respectively equipped with Qianmen 3 and back door 5, is provided with case lock 4 on Qianmen 3, is provided with handle 6 and indicator lamp 7 on back door 5; Described milk box 2 bottoms are provided with weight sensor 8; One end of described comparator is connected with weight sensor 8, the other end access reference voltage of comparator, and the output signal of comparator is worked by triode control indicator lamp 7.

Milk box 2 is stainless steel casings, and itself and security door are combined into one, and at least can put into three bottles of milk in case, and the Qianmen 3 of milk box 2 is positioned at security door main body 1 outside, and back door 5 is positioned at security door outside main body 1 inner side; Indicator lamp 7 adopts green LED light; Two joint alkaline batteries for power acquisition; Comparator adopts the LM339 of PHILIPS Co., and the reference voltage of comparator is formed by electric resistance partial pressure; Weight sensor 8 adopts the weight sensor of analog output, for detection of the weight of object in milk box 2.

While coming into operation, milk delivery worker opens case lock 4 by key in security door outside, and milk is put into milk box 2 from Qianmen 3, weight signal and reference voltage signal that now comparator can sense weight sensor 8 compare, when gravimetric value is greater than the corresponding gravimetric value of reference voltage, the output signal of comparator can be lighted by triode control indicator lamp 7, to represent being placed with milk in milk box 2.When user sees that indicator lamp 7 is lit, directly in security door inner side, by handle 6, open back door 5, the milk of can taking.

Claims

1. a security door, comprises security door main body (1), it is characterized in that: in described security door main body (1), be embedded with a milk box (2), milk box is provided with power supply, comparator and triode in (2); The front and back of described milk box (2) is respectively equipped with Qianmen (3) and back door (5); Described Qianmen (3) is provided with case lock (4); Described back door (5) is provided with handle (6) and indicator lamp (7); Described milk box (2) bottom is provided with weight sensor (8); One end of described comparator is connected with weight sensor (8), the other end access reference voltage of comparator; The output signal of described comparator is worked by triode control indicator lamp (7).

2. a kind of security door according to claim 1, is characterized in that: described indicator lamp (7) adopts LED light.

3. a kind of security door according to claim 1, is characterized in that: described power acquisition alkaline battery.