CN2757475Y

CN2757475Y - Anti-theft anti-lose cell phone jacket

Info

Publication number: CN2757475Y
Application number: CN 200520068202
Authority: CN
Inventors: 阮善肖
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-11
Filing date: 2005-01-11
Publication date: 2006-02-08
Anticipated expiration: 2015-01-11

Abstract

The utility model provides an anti-theft and anti-loss cell phone sleeve, which belongs to the technical field of daily articles, particularly the cell phone sleeve with anti-theft and anti-loss functions. The anti-theft and anti-loss cell phone sleeve comprises a sleeve body, and an alarm and a battery which are arranged inside the sleeve body, wherein a roller is arranged inside the sleeve body and a rolling belt is rolled on the roller. A volute spring is arranged inside the roller. Both ends of the volute spring are fixedly connected with the sleeve body and the roller respectively. The outer end of the rolling belt is extended out of the sleeve body, and is used for connecting with the cell phone. The extending point of the rolling belt is provided with a switch 1 which is composed of a fixed and moveless static contact point and a movable contact sheet that is made of an elastic metal sheet. The rolling belt is in contact with the movable contact sheet and controls the separation and the combination between the movable contact sheet and the static contact point. The alarm, the battery and the switch 1 are connected in series together to form an alarm circuit. A user is reminded by utilizing the alarm which sends out an alarm sound when the alarm circuit is switched on. The anti-theft and anti-loss functions are played. The anti-theft and anti-loss cell phone sleeve has the advantages of very simple alarm circuit and low product cost.

Description

The anti-theft anti-loss cell-phone cover

Technical field

The utility model belongs to the articles for daily use technical field, particularly a kind of cell-phone cover with anti-theft anti-loss function.

Background technology

At present, mobile phone has become the people's work and the indispensable communication tool of living.For easy to use, people often are loaded on mobile phone in the cell-phone cover not in waist.Common cell-phone cover only has the effect of placing mobile phone and protection mobile phone surface, and does not have anti-theft feature, causes being positioned over the hand-set from stolen in the cell-phone cover or the incident of losing happens occasionally.

For this reason, many people have designed various cell-phone covers with warning device, and what have has also applied for patent.As " antitheft mobile phone cover warning circuit " that Chinese patent 012665444 provides, it is made up of language chip, three utmost point amplifier tubes, loud speaker.Renovate as long as one opens cell-phone cover, loud speaker will send alarm sound.After cell-phone cover adopts this warning circuit,, open to renovate when using at every turn and all send chimes of doom, can cause people's attention on every side, may produce unnecessary trouble though can reach the purpose of warning.On the other hand, electronic component is more in the warning circuit, makes the cost of product higher, brings the certain economic burden to the cellphone subscriber.

Other the cell-phone cover that has warning function exists too high, the complex structure and other problems of cost too.

Summary of the invention

The purpose of this utility model is at the existing the problems referred to above of existing cell-phone cover, and a kind of anti-theft anti-loss cell-phone cover of novel structure is provided, and makes it have antitheft, anti-lost characteristics, and simple in structure, easy to use, low cost product.

The purpose of this utility model can realize by following technical proposal: this anti-theft anti-loss cell-phone cover comprises body and is located at the interior alarm of body, battery, it is characterized in that, be provided with a rolling wheel in the described body, volume has winding on the rolling wheel, volute spring is housed in the rolling wheel, the two ends of volute spring are connected with body and rolling wheel respectively, body is stretched out in the winding outer end, be used for being connected with mobile phone, stretch out the place in winding and be provided with the switch one that a movable contact spring of being made by fixed fixed contact and elastic sheet metal is formed, winding contact with movable contact spring and control between movable contact spring and the fixed contact deciliter, above-mentioned alarm, battery and switch one are connected on and form a warning circuit together.

In this cell-phone cover, when the warning circuit conducting, alarm sends alarm sound, to remind the user.The effect of control switch one is played in winding.That is to say that when mobile phone was ined succession in winding, winding was in tensioned state under the effect of volute spring.Under this state, by tightening of winding, the movable contact spring of switch one is separated with fixed contact, the just not conducting of whole warning circuit, alarm just can not send alarm sound yet; But in case winding disconnects, mobile phone separates with cell-phone cover, and then the movable contact spring of switch one utilizes the elasticity of self, contacts with fixed contact, makes whole warning circuit conducting.

In above-mentioned anti-theft anti-loss cell-phone cover, master switch of series connection on the described warning circuit, master switch is located at the lateral surface of body.When making the master switch conducting, the warning circuit of this cell-phone cover is just in running order.

In above-mentioned anti-theft anti-loss cell-phone cover, described winding outer end is a double buckle.Can connect with the corresponding clasp on being connected in mobile phone by this double buckle, winding is connected together mobile phone and cell-phone cover.

In above-mentioned anti-theft anti-loss cell-phone cover, also be provided with a switch two at the place of stretching out of winding, switch two is in parallel with switch one, and above-mentioned double buckle makes switch two conductings not being subjected to external force to utilize the elastic force of volute spring to be pressed on the switch two as the time spent.

In above-mentioned anti-theft anti-loss cell-phone cover, alarm lamp of series connection on the described warning circuit, alarm lamp is loaded on the lateral surface of body.Alarm lamp plays the prompting user, assists the effect of warning.

In above-mentioned anti-theft anti-loss cell-phone cover, the movable contact spring of described switch one is taken in winding.Like this, utilize the power of tightening of winding, the movable contact spring on the switch one is separated with fixed contact, switch one is in off-state.

In above-mentioned anti-theft anti-loss cell-phone cover, switch three of series connection on the described warning circuit, switch three is located in the body, and switch three is in off-state when in body mobile phone being housed; Switch three is not in conducting state when adorning mobile phone in body.

Compared with prior art, the utlity model has following advantage:

1, this cell-phone cover links to each other with mobile phone by winding, and when winding disconnected, the warning device in the cell-phone cover just can send alarm sound, therefore has the function of anti-theft anti-loss.

2, the warning circuit of this cell-phone cover is very simple, and product with low cost has higher utility.

3, in this cell-phone cover, master switch is located at the lateral surface of cell-phone cover, and whether the user can select to make warning device in running order arbitrarily, so operation and use are all very convenient.

Description of drawings

Fig. 1 is the schematic diagram that anti-theft anti-loss cell-phone cover that the utility model provides links to each other with mobile phone.

Fig. 2 is the cutaway view of the anti-theft anti-loss cell-phone cover that provides of the utility model.

Fig. 3 is the electrical schematic diagram of the anti-theft anti-loss cell-phone cover that provides of the utility model.

Fig. 4 is the stereogram of switch one and winding contact position in the anti-theft anti-loss cell-phone cover that provides of the utility model.

Among the figure, 1, body; 2, rolling wheel; 3, winding; 4, battery; 5, double buckle; 6, mobile phone; 7, volute spring.

Embodiment

As depicted in figs. 1 and 2, this anti-theft anti-loss cell-phone cover comprises body 1, rolling wheel 2, winding 3, volute spring 7 and warning circuit.

Volume has some circle winding 3 on the rolling wheel 2 in the body 1.A volute spring 7 is housed in the rolling wheel 2, and an end and the body 1 of volute spring 7 are connected, and the other end and rolling wheel 2 are connected.Elastic force by volute spring 7 can rotate rolling wheel 2 winding 3 is tightened.Body 1 is stretched out in the winding 3 that twists on the rolling wheel 2, and is connected with mobile phone 6 by a double buckle 5.

Body 1 place is stretched out in winding 3 switch one K1, and switch one K1 contacts with winding 3.As shown in Figure 4, switch one K1 is made up of movable contact spring K11 and fixed contact K12.Movable contact spring K11 is a rubber-like sheet metal, and movable contact spring K11 contacts and takes in winding 3 with winding 3.When winding 3 was tauted by the elastic force of volute spring 21, movable contact spring K11 can't contact with fixed contact K12, made switch one K1 be in off-state.Only when winding 3 was cut off, the pulling force that movable contact spring K11 is not tightened by winding 3, movable contact spring K11 utilized the elastic force of self to contact with fixed contact K12, thereby make switch one K1 closure.Therefore, by tightening and loosen of winding 3, controllable switch one K1 disconnects and is closed.

As shown in Figure 3, in the present embodiment, warning circuit is made up of alarm R, battery 4, alarm lamp L, switch one K1, K switch 2, switch three K3 and master switch K.After switch one K1 and K switch 2 were in parallel, being cascaded with alarm R, alarm lamp L, switch three K3 formed the loop.

As shown in Figure 2, master switch K is located at the lateral surface of mobile phone body 1.When this warning circuit was in running order, master switch is conducting always.If cell-phone cover does not need burglar alarm, master switch K is disconnected get final product.

As shown in Figure 2, switch two K2 be positioned at winding 3 stretch out the place and in parallel with switch one K1.When the double buckle 5 of winding 3 outer ends is pressed on switch two K2, switch two K2 conductings; If double buckle 5 leaves switch two K2, then switch two K2 are in off-state.

As depicted in figs. 1 and 2, alarm lamp L is loaded on the lateral surface of body 1.In the present embodiment, what alarm lamp L adopted is light-emitting diode.

As shown in Figure 2, switch three K3 are located in the body 1.Switch three K3 disconnect in the time of in mobile phone is loaded on body 1; Switch three K3 conductings when mobile phone is taken out body 1.

Shown in the circuit diagram of Fig. 3, in the time of in mobile phone 6 is loaded on body 1, because switch three K3 disconnect the not conducting of whole warning circuit.When mobile phone 6 was taken out normal use from body 1, because mobile phone 6 links to each other with winding 3, winding 3 was in tensioned state, and switch one K1 disconnects and switch two K2 also disconnect, therefore also not conducting of whole warning circuit.But, from body 1, to take out and winding 3 when disconnecting when mobile phone 6, mobile phone 6 breaks away from mobile phone body 1 fully, and switch one K1 and switch three K3 all are in conducting, so whole warning circuit is in conducting state, alarm R sends alarm sound, and alarm lamp L is bright.Another kind of situation about can report to the police is that mobile phone 6 is taken out from body 1, and breaks away from winding 3.At this moment, the double buckle 5 of winding 3 ends still is pressed on switch two K2, makes K switch 2 conductings; Simultaneously, also conducting of switch three K3, therefore whole warning circuit is in conducting state.This situation betides the robber and takes out and make double buckle 5 and mobile phone 6 to disconnect from body 1 mobile phone 6.

In the present embodiment, what battery 4 adopted is button cell, is loud speaker and alarm R adopts, and type of alarm is a sound and light alarm.

Claims

1, a kind of anti-theft anti-loss cell-phone cover, comprise body (1) and be located at the interior alarm R of body (1), battery (4), it is characterized in that, be provided with a rolling wheel (2) in the described body (1), rolling wheel (2) is gone up volume winding (3), volute spring (7) is housed in the rolling wheel (2), the two ends of volute spring (7) are connected with body (1) and rolling wheel (2) respectively, body (1) is stretched out in winding (3) outer end, be used for being connected with mobile phone (6), stretch out the place in winding (3) and be provided with switch one K1 that a movable contact spring K11 who is made by fixed fixed contact K12 and elastic sheet metal forms, winding (3) contact with movable contact spring K11 and control between movable contact spring K11 and the fixed contact K12 deciliter, above-mentioned alarm R, battery (4) and switch one K1 are cascaded and form a warning circuit.

2, anti-theft anti-loss cell-phone cover according to claim 1 is characterized in that, master switch K of series connection on the described warning circuit, and master switch K is located at the lateral surface of body (1).

3, anti-theft anti-loss cell-phone cover according to claim 1 is characterized in that, alarm lamp L of series connection on the described warning circuit, and alarm lamp L is loaded on the lateral surface of body (1).

4, anti-theft anti-loss cell-phone cover according to claim 1 is characterized in that, the movable contact spring K11 of described switch one K1 takes in winding (3).

5, anti-theft anti-loss cell-phone cover according to claim 1 is characterized in that, switch three K3 of series connection on the described warning circuit, and switch three K3 are located in the body (1), and switch three K3 are in off-state when in body (1) mobile phone (6) being housed; Switch three K3 are not in conducting state when adorning mobile phone (6) in body (1).

According to each described anti-theft anti-loss cell-phone cover of claim 1 to 5, it is characterized in that 6, described winding (3) outer end is a double buckle (5).

7, anti-theft anti-loss cell-phone cover according to claim 6, it is characterized in that, the place of stretching out in winding (3) is provided with switch two K2, switch two K2 are in parallel with switch one K1, above-mentioned double buckle (5) makes switch two K2 conductings not being subjected to external force to utilize the elastic force of volute spring (7) to be pressed on switch two K2 as the time spent.