CN1494041A - Anti-theft monitor and connecting unit - Google Patents
Anti-theft monitor and connecting unit Download PDFInfo
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- CN1494041A CN1494041A CNA021482497A CN02148249A CN1494041A CN 1494041 A CN1494041 A CN 1494041A CN A021482497 A CNA021482497 A CN A021482497A CN 02148249 A CN02148249 A CN 02148249A CN 1494041 A CN1494041 A CN 1494041A
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Abstract
An antitheft monitor has a connecting unit and an alarm unit. Said connecting unit has a connecting surface to the object and a detector for detecting if the connecting unit is connected with the object. Said connecting surface is connected to theo bject by screw. If they are not connected, it is found out by the detecter and the alarm unit is triggered to generate alarm signals.
Description
Related application
The application is based on Japanese patent application No.2001-189421 that submits in Japan June 22 calendar year 2001 and the Japanese patent application No.2001-218610 that submits in Japan July 18 calendar year 2001, and all the elements of these applications are quoted at this with for referencial use.
Technical field
The present invention relates to a kind of article (monitoring objective article) or stolen thief-proof supervising device of goods that is used for preventing or stoping the shop.
The invention still further relates to a kind of linkage unit that uses in thief-proof supervising device, it links to each other with the monitoring objective article.
Background technology
At present existing various thief-proof supervising devices with prevent or the prevention shop in the article that display stolen.
For example, a kind of so thief-proof supervising device is arranged, this device detects article in the following manner by the stealing situation, and can give the alarm when article are stolen when detecting.
For example, following a kind of like this linkage unit can link to each other with article.This linkage unit has one and is used to detect the detecting element whether linkage unit links to each other with article.Connection status according to by detected coupling arrangement of detecting element and article is sounded alarm.Linkage unit for example links to each other with article with double-faced adhesive tape.Detecting element for example can adopt the switch with contact, and its contact is opened according to the connection status of linkage unit and article or be closed.
Yet,, can produce such problem in some cases if linkage unit is linked to each other with article with double-faced adhesive tape.For example, in some cases, be difficult to make linkage unit to link to each other with article with double-faced adhesive tape, this will depend on the surface condition of article.In some cases, double-faced adhesive tape can be made article dirty.Remove if repeatedly linkage unit is connected on the article or from article, the bounding force of double-faced adhesive tape can descend, and therefore, linkage unit can not link to each other with article more in some cases at last.If linkage unit links to each other with article for a long time, the viscous force of double-faced adhesive tape can descend, and like this, linkage unit can throw off or separate from article in some cases.
Summary of the invention
The purpose of this invention is to provide a kind of thief-proof supervising device, in this device, linkage unit can link to each other with the monitoring objective article, and the connection status according to linkage unit and article gives the alarm, more particularly, the invention provides a kind of so thief-proof supervising device, linkage unit can link to each other with the monitoring objective article easily and accurately in this device.
Another object of the present invention is to provide a kind of linkage unit that can be used in the thief-proof supervising device, and this linkage unit can link to each other with the monitoring objective article easily and accurately.
(1) thief-proof supervising device
The invention provides a kind of thief-proof supervising device, this device comprises:
One linkage unit, this linkage unit have one can link to each other with article be connected the surface, this linkage unit comprises a detecting element, whether this detecting element is used to detect linkage unit and links to each other with article; And
One warning device, this warning gives the alarm according to the information that the expression linkage unit does not link to each other with article, and information is detected by detecting element; Wherein
But the connection surface of linkage unit is provided with the first on the screw thread that a spiral is coupled to article; And
Be coupled on the screw thread of article by first's spiral, linkage unit can be connected on the article linkage unit.
(2) linkage unit
The present invention also provides a kind of linkage unit that is used for thief-proof supervising device, and this linkage unit have one can link to each other with article be connected the surface, this linkage unit comprises:
Whether one detecting element, this detecting element are used to detect linkage unit and link to each other with article; And
One first, but this first's spiral is coupled on the screw thread of article and is arranged on and connects the surface; Wherein
Be coupled on the screw thread of article by first's spiral, linkage unit can be connected on the article linkage unit.
Can above-mentioned and other purpose obviously of the present invention from following detailed description and drawings, feature, aspect and advantage.
Brief description of the drawings
Fig. 1 is the synoptic diagram that shows according to the structure of an embodiment of thief-proof supervising device of the present invention.
Fig. 2 A be show linkage unit with the sectional view of a embodiment before the monitoring objective article link to each other; And Fig. 2 B shows the sectional view of same linkage unit after linking to each other with the monitoring objective article.
Fig. 3 is the exploded perspective view of the linkage unit of Fig. 2 A.
Fig. 4 is the circuit diagram of the contact of linkage unit.
Fig. 5 is the sectional view that shows another embodiment of linkage unit.
Fig. 6 A be show be connected with the monitoring objective article before the sectional view of another embodiment of linkage unit; And Fig. 6 B be show be connected with the monitoring objective article after the sectional view of this linkage unit.
Fig. 7 A be show be connected with the monitoring objective article before the sectional view of another embodiment of linkage unit; And Fig. 7 B be show be connected with the monitoring objective article after the sectional view of this linkage unit.
Fig. 8 shows such a case, that is, a thin plate is inserted between the monitoring objective article and linkage unit of Fig. 2 A that links to each other with article.
Fig. 9 A be show be connected with the monitoring objective article before the sectional view of another embodiment of linkage unit; And Fig. 9 B be show be connected with the monitoring objective article after the sectional view of this linkage unit.
Figure 10 A and Figure 10 B are respectively the sectional view of the another embodiment that shows linkage unit.
Figure 11 A and Figure 11 B are respectively the sectional view of the another embodiment that shows linkage unit.
Figure 12 shows the circuit diagram of an embodiment of warning device.
Embodiment
In the following description, introduced a kind of hereinafter thief-proof supervising device of described multiple advantage that has.
§1.1
Thief-proof supervising device is provided with a linkage unit and a warning device.The predetermined surface of linkage unit links to each other with the monitoring objective article.More particularly, linkage unit is connected on the monitoring objective article, so that the predetermined surface of linkage unit is towards article.This of linkage unit is called as " connecting the surface " below predetermined surface.
Linkage unit comprises a detecting element that is used to detect the connection status of linkage unit and monitoring objective article, that is to say that this detecting element is used to detect linkage unit and whether links to each other with article.Linkage unit can also comprise a hollow housing (case), and in this case, at least a portion detecting element can be set in the housing.
Detecting element can be a switch as described below.This switch has a movable part and a contact.According to the position of movable part, more particularly according to the position of movable part with respect to Switch main body, the contact can be in selectively opens or closure state.Movable part is pressed towards the outside that connects the surface, and usually, movable part is pressed the outside of pushing connect the surface to.Connect the surface the outside and inboard refer to respectively when linkage unit and article are continuous approaching or away from the sidepiece that is connected the surface of article.
Movable part for example can be pressed towards the outside that connects the surface by elastic component.Elastic component can be spring or the rubber component such as disc spring or leaf spring (flat spring).Movable part can be for shaft-like, and can be configured to and can rectilinearity move between the inboard that connects the surface and the outside.In addition, movable part can be configured to and can rotate around a predetermined axial line between the inboard that connects the surface and the outside.
When movable part is pushed to the inboard that connects the surface so that movable part is positioned at or when being positioned at normal place inboard (reference position), the contact of switch is in closure state.On the other hand, when movable part was positioned at the outside of normal place or normal place, the contact of switch was in open mode.When linkage unit was linked to each other with article, movable part was pushed to the inboard that connects the surface by article, and makes movable part be positioned at the inboard of normal place so that the closing of contact of switch thus.When the linkage unit that links to each other with article thus when the monitoring objective article are removed, the power of movable part being pushed to connect to the inboard on surface no longer acts on the movable part, movable part can be shifted to the outside of normal place or normal place under the effect of pressure like this, and the contact of switch is opened.According to these, whether switch can detect linkage unit and link to each other with the monitoring objective article.
Except that above-mentioned this switch, detecting element can be an optical sensor, and when linkage unit linked to each other with article, this sensor cover was to the monitoring objective article.Whether optical sensor for example can detect linkage unit in the following manner and link to each other with article.Linkage unit links to each other with article, and the light of optical sensor is accepted part and can be detected by the luminous component of optical sensor and launch and by the light of article surface reflection like this.If linkage unit is removed from article after linkage unit is connected on the article, luminous intensity, luminous quantity and the further feature of the light that is received by the light receiving unit of optical sensor will change, therefore, can detect the connection status of linkage unit by optical sensor.
Warning device is according to being given the alarm by the detected information of detecting element.More particularly, warning device gives the alarm according to the detection information that the expression linkage unit does not link to each other with article.The detection information that do not link to each other with article of expression linkage unit comprises represents that linkage unit removes the information of article wholly or in part, and can comprise the abnormal information of connection status of representing linkage unit and article, promptly, although linkage unit still links to each other with article partly, the situation that linkage unit still may shift out from article.At least remove detected element testing then when linkage unit from article, warning device can give the alarm.Even when detect linkage unit remove from article after linkage unit link to each other with article once more, warning device still can continue to give the alarm.If use switch as detecting element, warning device gives the alarm in the time of can being in open mode in the contact of switch at least.
The alarm that warning device sends can be sound, light and/or other.Warning device can comprise that one is sent hummer as the sound of alarm, one and sends as the lamp of the light of alarm and/or other.Alarm element such as hummer and lamp can be set at the linkage unit place.
§1.2
In thief-proof supervising device, linkage unit also comprises a first as described below.
The first of linkage unit is provided for linkage unit is connected on the monitoring objective article.The first of linkage unit can be coupled on the screw thread of article by spiral.This first is known as " threaded portion " hereinafter.
Have in the situation of a female screw at the monitoring objective article, be coupled to a pin thread on the female screw of article but the threaded portion of linkage unit is a spiral.Have in the situation of a pin thread at article, but the threaded portion of linkage unit is coupled to a female screw on the pin thread of article for spiral.
By with linkage unit the threaded portion threaded engagement or be threaded on the screw thread of article, linkage unit can be connected on the monitoring objective article.
Embodiment with article of screw thread can be camera (comprising digital camera) and video camera (comprising Digital Video), but is not limited in this.The camera of many types and camera all have screw thread (being generally female screw), and these screw threads are used for tripod is connected to camera or camera so that camera is play supporting role.Be coupled to threaded portion (being generally pin thread) on the screw thread of the camera that is provided for connecting tripod at first or camera if but linkage unit has spiral, linkage unit can link to each other with article (camera or camera) at an easy rate.In this case, thief-proof supervising device can be used to monitoring camera or camera.
Be coupled on the screw thread of above-mentioned monitoring objective article by the threaded portion spiral with linkage unit, linkage unit can be connected on the article, this makes linkage unit is linked to each other with article.Because linkage unit do not connect double-faced adhesive tape, so the connection of the linkage unit article of can not making dirty.Even linkage unit links to each other for a long time with article, the connection status or the situation of linkage unit and monitoring objective article also can change hardly.Even linkage unit links to each other with article once more after linkage unit is removed from article, linkage unit also can link to each other with the monitoring objective article and the situation that can not occur losing efficacy easily.Even linkage unit links to each other with article for several times and removes, linkage unit also can link to each other with the monitoring objective article and the situation that can not occur losing efficacy.Even when picking up article with hand, linkage unit also can be removed or separate hardly from the monitoring objective article.
Below, will be further described thief-proof supervising device.
(a) have under the situation of female screw when article, but the threaded portion of linkage unit can be coupled to pin thread (male screw portion) on the female screw part of above-mentioned article for spiral.
In this case, the pin thread of linkage unit has an aperture that extends along vertical (axis direction) of the pin thread of linkage unit, at least a portion as the above-mentioned switch of detecting element can be arranged in the aperture of pin thread, and in addition the movable part of switch can be formed in this aperture of pin thread movable.As mentioned above, when linkage unit linked to each other with article, movable part was pushed to the inboard on linkage unit surface by the bottom surface in the hole of the female screw of article, and thus, movable part can be positioned at the inboard of normal place.
As mentioned above, when linkage unit linked to each other with article, an end of the movable part of switch was positioned at the inboard of the threaded hole of article.
After linkage unit links to each other with the monitoring objective article, can eliminate such a case, that is, movable part is kept by a thin plate or similar articles, and thus, movable part can not move on to normal place or its outside.That is to say that can eliminate such a case, promptly movable part is held, does not open the contact of switch thus, and more particularly, warning device does not give the alarm thus.Like this, linkage unit can be detected by switch like clockwork with the connection status of monitoring objective.
In the movable part of switch as mentioned above is arranged on situation in the aperture of the pin thread of linkage unit, can also adopt at following (a1) or the structure of describing (a2) and other.
(a1) linkage unit can also comprise an extension rod together mobile with the movable part of switch, and when linkage unit linked to each other with article, movable part can be pushed to the inboard that connects the surface by extension rod.
The length of the movable part of switch on sale is not very long usually on the market, therefore in some cases, linkage unit links to each other with article under the very dark situation of the female threaded hole of article, and movable part can not be pushed to the inboard that connects the surface, and the contact of switch can not be closed in these cases thus.By adopting above-mentioned extension rod, even under the very dark situation of the threaded hole of article, movable part also can be pushed to the inboard that connects the surface by extension rod, thereby can make the closing of contact of switch.
Extension rod can be set at the end of movable part, so that it is towards article.Movable part and extension rod can interconnect directly or indirectly, and for example by jointing material, movable part and extension rod can together move mutually like this.
(a2) linkage unit can also comprise an elastic component that moves with the movable part of switch, and when linkage unit linked to each other with article, movable part can be pushed to the inboard that connects the surface by elastic component.
As mentioned above, because the rubber-like elastic component can expand according to the degree of depth of the threaded hole of article and compression, linkage unit can be used to have the multiple article of the threaded hole of different depth.
Elastic component can be a spring such as disc spring or rubber component.Elastic component can be set at the place, end of the movable part of switch, makes it face article.Movable part and elastic component for example can interconnect directly or indirectly by jointing material, and like this, movable part and elastic component can move mutually together.Be pressed towards the outside that connects the surface at movable part by spring (being called as first spring), and another second spring is set at together with movable part in the situation at linkage unit place, what the spring modulus of second spring can be than first spring is big.
(b) threaded portion at linkage unit is in the situation of pin thread, and the pin thread of linkage unit has along the aperture of the longitudinal extension of pin thread, and at least a portion switch can be set in the aperture of pin thread.
In said structure, switch itself can be configured to and can move in the aperture of the pin thread of linkage unit, and switch itself can be towards the outside biasing that connects the surface.Switch for example can be pressed towards the outside that connects the surface by an elastic component.This elastic component can be the spring such as disc spring and leaf spring or rubber component.When linkage unit linked to each other with article, the movable part of switch can directly be pushed to the inboard that connects the surface by article usually.
As mentioned above, because elastic component can expand according to the degree of depth of the threaded hole of article and compression, therefore, linkage unit can be used for multiple article with threaded hole of different depth.Be pressed towards the outside that connects the surface at the movable part of switch by spring (being called as first spring), and switch itself also by one second spring in the situation of the outside biasing that connects the surface, what the spring modulus of second spring can be than first spring is big.
(c) threaded portion of linkage unit can be screwed at the very start, and threaded portion can be coupled on the screw thread of article by spiral like this.
Replace, also can be when the threaded portion of linkage unit link to each other with article first, the threaded portion of the unit that is threaded by article forms screw thread, and like this, linkage unit just becomes and can link to each other with the screw thread of article.For this viewpoint, can think linkage unit threaded portion (first) but a part or a member of being threaded engagement to the article screw thread.As mentioned above, be coupled on the screw thread of article, linkage unit can be connected on the article, and the pitch of the screw thread of this and article and other are irrelevant by threaded portion spiral with linkage unit.
(d) said structure, mode and other can carry out applied in any combination.
§2
In the following description, the linkage unit that is applied in the thief-proof supervising device has been described.
Linkage unit is: a linkage unit, this linkage unit is applied in the thief-proof supervising device, and have one link to each other with article be connected the surface, this linkage unit comprises:
Whether a detecting element, this detecting element are used to detect linkage unit and link to each other with article; And
A first, this first can be coupled on the screw thread of article by spiral, and this part is set at the connection surface; Wherein
This linkage unit can be coupled to by the first's spiral with linkage unit on the screw thread of article and link to each other with article.
The content of describing in about the part § 1 of linkage unit also is fit to above-mentioned linkage unit.This linkage unit can be easy to and inerrably be connected on the monitoring objective article.
Linkage unit can also comprise that one is used for to the electric wire (cable) of warning device conveying by the detected information of detecting element.
§3
Below, preferred embodiment and the linkage unit to thief-proof supervising device is described with reference to the accompanying drawings.
Fig. 1 is a kind of sectional view of structure that shows the embodiment of thief-proof supervising device.
Thief-proof supervising device A1 shown in Fig. 1 has warning device AD and linkage unit (coupling part) AU1.In this example, device A1 has two linkage unit AU1.
Fig. 2 A and Fig. 2 B are respectively the sectional view of linkage unit AU1.Fig. 3 is the exploded perspective view of linkage unit AU1.Some part of linkage unit is not shown in Figure 3.
Linkage unit AU1 can link to each other with G2 with article (monitoring objective article) G1 respectively, thereby monitors article in case it is stolen.
In the present embodiment, monitoring objective article G1 and G2 are respectively camera and camera.Camera G1 as monitoring objective has a female screw G1s, and this female screw is used for tripod (not shown) is connected to camera G1.Similarly, have a female screw G2s as the camera G2 of monitoring objective, this female screw is used for tripod (not shown) is connected to camera G2.As hereinafter describing in detail, linkage unit AU1 makes article link to each other with the monitoring objective article by the female screw that utilizes article.
Warning device AD gives the alarm according to the detected information of linkage unit AU1.As hereinafter describing in detail, for example when linkage unit AU1 when article are removed, warning device AD can give the alarm.The detection information of linkage unit AU1 is transported to alarm device AD by one from the extended electric wire 2 of linkage unit AU1.
Linkage unit AU1 has one and is used to detect the switch 3 whether linkage unit AU1 links to each other with the monitoring objective article.This switch 3 is arranged within the hollow housing 5.As shown in Figure 3, housing 5 is made of upper and lower housing parts 5u and 5b.When in the precalculated position of the inboard that switch 3 is set to lower case part 5b, upper and lower housing parts 5u and 5b are fixed together by a kind of jointing material.In the present embodiment, switch 3 is fixed among the lower case part 5b with a kind of jointing material.
When movable part 31 was positioned at preassigned position inboard, the contact 3c of switch 3 was in closure state.The inboard of normal place is the side near Switch main body 3b.When movable part 31 was positioned at normal place or be positioned at outside the normal place, the contact 3c of switch was in open mode.
The opposed end of the contact 3c of switch 3 links to each other with 322 with outside lead 321.The information of the opening of contact 3c-closure state is transported to warning device AD by the lead-in wire 21 and 22 of the electric wire 2 that links to each other with 322 with outside lead 321 respectively.
Linkage unit AU1 is provided with a threaded portion 4, and this threaded portion is used for linkage unit is linked to each other with monitoring objective article (referring to Fig. 2 A, 2B and other).The threaded portion 4 of linkage unit AU1 is pin threads, but this pin thread spiral is coupled on the female screw G1s of monitoring objective article G1.As mentioned above, screw thread G1s is used to make the same article of tripod (camera) G1 to link to each other originally.But threaded portion 4 also spiral is coupled on the female screw G2s of monitoring objective article G2.As mentioned above, it is continuous that this screw thread G2s is used to make the same article of tripod (camera) originally.
Go up (or on female screw G2s of article G2) by the female screw G1s that male screw portion 4 spirals is coupled to monitoring objective article G1, linkage unit AU1 can link to each other with the monitoring objective article.
Below, will the use-pattern of thief-proof supervising device A1 be described.
By male screw portion 4 spirals are coupled on the female screw part of monitoring objective article, two linkage unit AU1 are linked to each other respectively with G2 with monitoring objective article G1.In this operation, article are pushed the movable part 31 of the switch 3 of linkage unit AU1 the inboard of housing 5 to, and make the contact 3c of switch 3 be arranged on closure state thus.This state is referred to as original state.
In original state, the contact 3c of the switch 3 of each linkage unit AU1 is in closure state.In original state, warning device can not give the alarm.
From original state, if at least one linkage unit AU1 removes from the monitoring objective article, warning device gives the alarm with the following step.Because the pressure of spring 33, the movable part 31 of the linkage unit of removing from article is outstanding towards the outside of housing 5.Like this, when linkage unit AU1 when the monitoring objective article are removed or are pulled down, the contact 3c of the switch of the linkage unit AU1 that removes from article opens.As mentioned above, when linkage unit AU1 when the monitoring objective article are removed or are pulled down, the opening of the contact 3c of switch 3-closure state becomes open mode from closure state, this means that switch 3 has detected the connection status of linkage unit AU 1 with the monitoring objective article.
Be transported to warning device AD by the lead-in wire 21 and 22 of switch 3 detected information by electric wire 2.According to switch 3 detected information, warning device AD can give the alarm.When the contact of at least one linkage unit AU1 3c was in open mode, warning device AD can give the alarm.What in the present embodiment, warning device AD sent is the alarm of light and sound.Sound that sends thus and light can stop or eliminate the stolen phenomenon of containment article.The embodiment of a kind of circuit diagram of warning device AD below will be described.
In thief-proof supervising device A1, on the female screw part that male screw portion 4 spirals is coupled to the monitoring objective article, linkage unit AU1 is linked to each other with the monitoring objective article.Like this, linkage unit AU1 can link to each other with the monitoring objective article easily.Because linkage unit does not link to each other with article by double-faced adhesive tape as common mode, therefore, linkage unit AU1 can not make the monitoring objective article dirty.Even when linkage unit AU1 links to each other with the monitoring objective article for a long time, linkage unit also can change hardly with the connection status or the situation of article.Even when linkage unit after the monitoring objective article are removed, linkage unit AU1 also can link to each other with the monitoring objective article like clockwork once more.Even after linkage unit AU1 being linked to each other with the monitoring objective article remove again, linkage unit AU1 also can accurately link to each other with the monitoring objective article.Even when client handed the monitoring objective article, linkage unit AU1 also separated together with article hardly.
Because linkage unit AU1 cooperates by above-mentioned spiral to link to each other with the monitoring objective article, with by double-faced adhesive tape linkage unit is compared with the situation that the monitoring objective article link to each other, need spend the longer time that linkage unit AU1 is removed from article in order to steal the article thief.This can stop the thief to steal article, and this easier thief of awaring of salesman is removed linkage unit AU1 from article behavior.
§4
In the linkage unit AU1 of Fig. 2 A, the housing 5 of threaded portion 4 is members.In addition, linkage unit AU2 as shown in Figure 5 is such, is member independently but spiral is coupled to threaded portion 41 on the female screw G1s (or female screw G2s of article G2) of monitoring objective article G1 and housing.In the present embodiment, threaded portion 41 is fixed on the housing 5 by jointing material, and threaded portion 41 can not move or rotate with respect to housing 5 like this.
As the linkage unit AU3 shown in Fig. 6 A and Fig. 6 B, but the threaded portion 42 that spiral is coupled on the female screw G1s (the female screw G2s of article G2) of monitoring objective article G1 can be coupled on the female screw of article by spiral, and threaded portion 42 forms screw thread by the female screw part of article simultaneously.Like this, no matter article have what kind of pitch and other requirements, and threaded portion 42 can be coupled on the screw thread of article by spiral, and shown in Fig. 6 B, threaded portion 42 forms screw thread according to pitch and other requirements of article screw thread, and like this, linkage unit AU3 can link to each other with article.
§5
Another embodiment of linkage unit has been shown among Fig. 7 A and Fig. 7 B.
Show among the linkage unit AU4 at Fig. 7 A and Fig. 7 B, aperture 4a is arranged on male screw portion 4 along vertical (axis direction) of threaded portion 4.The part of the movable part 31 of switch 3 is arranged among the aperture 4a, and that movable part 31 is configured to is can be in aperture 4a movable.
Compare with the above-mentioned linkage unit AU1 of Fig. 2 A and 2B, the linkage unit AU4 of Fig. 7 A and 7b has following advantage.
In each of linkage unit AU1 and AU4, be provided with switch 3 and be used for detecting linkage unit and whether link to each other, and detect linkage unit when article are removed when switch 3 with the monitoring objective article, warning device AD gives the alarm.
Yet if there is the people to carry out the behavior of following malice, pulling down linkage unit from the monitoring objective article can not be detected by switch 3.
As shown in Figure 8, if a thin plate TP is inserted between linkage unit AU1 and the monitoring objective article G1, even when linkage unit when article are pulled down, the movable part 31 of switch 3 also can be maintained and can not give prominence to from housing 5 by thin plate TP, in other words, if movable part 31 is held, even thereby make linkage unit pull down from article, the contact 3c of switch 3 can not open yet, like this, after movable part was held as described above, even linkage unit is pulled down from article, switch 3 can not detect linkage unit AU1 and pull down from article.
Contrary to the above, when the linkage unit AU4 of Fig. 7 A and Fig. 7 B linked to each other with the monitoring objective article, the end of movable part 31 was positioned at the threaded hole G1h (or G2h) of article, and threaded portion 4 is round movable part 31.Like this, just can stop movable part 31 to be maintained and the contact of switch can not be opened, in other words, can not give the alarm by thin plate.Like this, whether the switch 3 of linkage unit AU4 just can more accurately detect linkage unit AU4 and link to each other with the monitoring objective article.
Fig. 9 A and Fig. 9 B show another embodiment of linkage unit.
In the linkage unit AU5 of Fig. 9 A and Fig. 9 B, an extension rod 34 is arranged on the place, end of the movable part 31 of switch 3.In the present embodiment, extension rod 34 and movable part 31 interfix by jointing material.Like this, movable part 31 and extension rod 34 can move together.Because extension rod 34 can together move along with movable part, therefore can think that extension rod 34 is parts of the movable part of switch 3.
In order to prevent that movable part from rupturing or for other purpose, the length of the movable part of switch on sale is not very long on the market.Therefore, in some cases, when linkage unit linked to each other with article, according to the degree of depth of threaded hole G1h (or G2h), movable part 31 can not reach the bottom surface of the threaded hole G1h (or G2h) of monitoring objective article G1 (or G2).Under the sort of situation, even linkage unit is with after the monitoring objective article link to each other, movable part 31 can not be pushed to the inboard of housing, and the contact of switch 3 can be closed thus.Like this, whether switch can not detect linkage unit and link to each other with article.
In above-mentioned situation or some other situation, the extended element that is provided with such as extension rod 34 by the end at movable part extends the length of movable part 31, and switch just can be used to have the article than the deep thread hole.
Except fix extension rod 34 and movable part 31 with jointing material, extension rod and movable part can interconnect by the removably mode such as spiral cooperates or cooperatively interact.Like this, by preparing a plurality of extension rods of all lengths, switch just can be used to have the article of the threaded hole of different depth.
§7
Figure 10 A and Figure 10 B show another embodiment of linkage unit.
In the linkage unit AU6 of Figure 10 A and Figure 10 B, a disc spring 35 links to each other with the movable part 31 of switch, so that spring 35 is along with movable part 31 together moves.Disc spring 35 is fixing around a bar 36, and this bar is fixing with jointing material and movable part 31, and spring 35 is fixing by jointing material and bar 36.Like this, movable part 31, bar 36 and spring 35 can move together.Spring 35 extends beyond an end of bar 36.
By spring 35 is set as mentioned above, in linkage unit AU6 shown in Figure 10 A and situation that the monitoring objective article of the threaded hole with depth D 1 link to each other and linkage unit AU6 shown in Figure 10 B with have depth D 2 (in the situation that the monitoring objective article of the threaded hole of D2＜D1) link to each other, along with spring 35 expands according to the degree of depth of the threaded hole of article or compresses, movable part 31 can be pushed to the housing inboard by spring, and makes the contact of switch be arranged on closed state thus.That is to say that the difference of the degree of depth of threaded hole can be absorbed by the extension of spring 35 and compression.
In the present embodiment, the spring modulus of spring 35 can be provided with to such an extent that movable part 31 is pushed to spring 33 big in the outside on linkage unit surface than exerting pressure, and like this, spring 33 at first is compressed to the degree bigger than spring 35.In other words, after movable part 31 is pushed to Switch main body 3b, and thus after the switch contact closure, spring 35 just begins to be compressed to a bigger degree.
According to inventor's investigation, camera of 11 production firms (comprising digital camera) and camera have threaded hole, and each threaded hole all is used to connect tripod at first, and wherein minimum-depth is 5.6mm and depth capacity is 7.0mm.If the difference of the degree of depth of threaded hole reaches above-mentioned degree, spring 35 can absorb these differences.
As mentioned above, in the present embodiment, spring 35 is fixing with the movable part 31 of switch 3 by bar 36, in addition, spring 35 can be directly and movable part 31 fix.No matter in which way, because spring 35 can move together along with movable part 31, therefore, spring 35 can be counted as the part of the movable part of switch.
§8
Figure 11 A and Figure 11 B show another embodiment of linkage unit.
In the linkage unit AU7 of Figure 11 A and Figure 11 B, switch 3 is arranged in the aperture 4a of male screw portion 4 of linkage unit.The cross sectional shape that this aperture 4a has is corresponding with the cross sectional shape of switch 3.When switch 3 was guided by the inside surface of aperture 4a, it can move switch 3 in aperture 4a along the direction from inside to outside of linkage unit 5s and opposite direction thereof.Switch 3 is pushed connect to the outside of surperficial 5s by a disc spring 6.In the present embodiment, switch 3 and spring 6 interfix by jointing material, and the inwall of spring 6 and housing 5 also interfixes by jointing material.
By spring 6 is set as mentioned above, similar with the linkage unit AU6 of Figure 10 A and Figure 10 B, in linkage unit AU7 shown in Figure 11 A and situation that the monitoring objective article of the threaded hole with depth D 1 link to each other and linkage unit AU7 shown in Figure 11 B with have depth D 2 (in the situation that the monitoring objective article of the threaded hole of D2＜D1) link to each other, along with spring 6 expands according to the degree of depth of the threaded hole of article or compresses, movable part 31 can be pushed to the housing inboard by spring, and makes the contact of switch 3 be arranged on closed state thus.That is to say that the difference of the degree of depth of threaded hole can be absorbed by the extension of spring 6 and compression.
In the present embodiment, the spring modulus of spring 6 can be provided with to such an extent that movable part 31 is pushed to spring 33 big in the outside on linkage unit surface than exerting pressure, like this, when linkage unit AU7 links to each other with article, and movable part 31 is pushed to when connecting surface inboard thus, and spring 33 at first is compressed to the degree bigger than spring 6.
§9
Figure 12 shows the embodiment of the circuit diagram of warning device AD.
The warning device AD of Figure 12 has hummer BZ1 can be used for alarm element and light emitting diode LP1 and according to a driving circuit of the information-driven alarm element that transports from linkage unit.
In Figure 12, linkage unit AU1 is applied linkage unit.
In the present embodiment, warning device AD has five cloudy web members 81, and each web member is used for and links to each other from the extended electric wire 2 of linkage unit AU1.End at electric wire 2 can be provided with the male connector (not shown) that an energy cooperates with cloudy web member 81, so that it links to each other with warning device AD, like this, electric wire 2 just can link to each other with warning device AD at an easy rate.One short-circuit line 82 links to each other with the web member 81 that is not connected electric wire 2.
In this warning device AD, the contact condition of the state of activation of relay coil RC and transistor Tr 1 is controlled according to the contact condition of each linkage unit AU1.Like this, the opening of relay contact RS1 and RS2-closure state can be controlled so as to that to apply voltage from power ps to alarm element controlled.Relay contact RS1 and RS2 can open or closure according to the state of activation of relay coil RC.Relay contact RS1 has three terminal RS1a, RS1b and RS1c.Terminal RS1c is a public terminal.Form a normally opened contact by terminal RS1a and RS1c, and formed a normally closed contact by terminal RS1b and RS1c.Relay contact RS2 is a normally opened contact.
For warning device AD is come into operation, each linkage unit AU1 links to each other with article, switch contact 3c closure like this, after this, a main switch MSW closure.In original state, transistor Tr 1 is closed, the TC un-activation of relay line chart and relay contact RS2 open.Like this, just do not have voltage from power ps and be applied on the hummer BZ1 and diode LP1 as alarm element, alarm can not sent like this.
Contact 3c at least one linkage unit AU1 in the initial state opens, and then transistor Tr 1 is opened, and relay coil RC is activated, relay contact RS2 closure, and last, voltage is applied on hummer BZ1 and the diode LP1.Like this, hummer BZ1 and diode LP1 begin to give the alarm.In a single day RC is activated when relay coil, even transistor Tr a disconnects, hummer BZ1 and diode LP1 also can continue to give the alarm.This is because the state of activation of relay coil RC can keep by the contact R S2 with relay coil and power ps polyphone.Warning device will be held secondary and go out alarm, till main switch MSW disconnects.
For example, the lead-in wire 21 and/or 22 of cable 2 is cut off in initial state, or when cable 2 is drawn out the web member 81 of warning device AD in the initial state, also can give the alarm.
As the linkage unit AU1 of the rightmost side among Figure 12, alarm element (being hummer BZ2 in the present embodiment) can with the parallel connection of contact 3c.Like this, when contact 3c was closed, voltage can not be applied to hummer BZ2, and therefore, hummer BZ2 can not give the alarm yet.When contact 3c opened, voltage was applied on the hummer BZ2 by a resistance R 2 from power ps, and hummer BZ2 gives the alarm thus.
If alarm element is provided with as mentioned above, the alarm meeting is sent in the stealing place.More particularly, can giving the alarm on hand the thief who linkage unit has been pulled down from article.Compare leaving situation about sending thief a distance with alarm, this situation that gives the alarm in thief's hand is easier to stop article to be stolen.In addition, alarm can make the thief recognize that stealing has been found.
Certainly, alarm also can be sent in the thief can not recognize the position (for example in the position away from the article zone that is shown) of alarm.
Though explained and described the present invention, be understandable that obviously this only is to have done explanation and example effect, and does not provide constraints, the spirit and scope of the present invention are only limited by claims.
Claims (18)
1. thief-proof supervising device, this device comprises:
One linkage unit, this linkage unit have one can link to each other with article be connected the surface, this linkage unit comprises that is used to detect the detecting element whether linkage unit links to each other with article; And
A warning device, this warning device gives the alarm according to the information that the expression linkage unit does not link to each other with article, and information is detected by detecting element; Wherein
The connection surface of linkage unit is provided with a first that can cooperate with the thread helix of article; And
Be coupled on the screw thread of article by first's spiral, linkage unit can be connected on the article linkage unit.
2. thief-proof supervising device as claimed in claim 1 is characterized in that, the article that link to each other with linkage unit are camera or camera.
3. thief-proof supervising device as claimed in claim 2 is characterized in that, the first of linkage unit can be coupled on the screw thread of article by spiral, and the screw thread of the article that are provided with on the article is used for tripod is connected to article.
4. thief-proof supervising device as claimed in claim 1 is characterized in that,
Detecting element is a switch, and this switch comprises a movable part and a contact,
The contact is in the state of moving or closure state according to the position of movable part,
Movable part is pressed towards the outside that connects the surface,
When movable part is pushed to when connecting surface inboard, the contact is in closure state, and movable part can be positioned at the inboard of a normal place like this,
When movable part was positioned at normal place or be positioned at the outside of normal place, the contact was in open mode;
Linkage unit can link to each other with article, thereby makes movable part be pushed to the inboard that connects the surface, and movable part is positioned at the inboard of normal place, and the contact is set in the closure state thus; And
At least when the contact of switch was in open mode, warning device gave the alarm.
5. thief-proof supervising device as claimed in claim 4 is characterized in that,
The first of linkage unit is a pin thread,
Pin thread is provided with an aperture along the longitudinal extension of pin thread, and
At least a portion of the movable part of switch is arranged in the aperture of pin thread.
6. thief-proof supervising device as claimed in claim 5 is characterized in that,
Linkage unit also comprises an extension rod, and this extension rod can move along with the movable part of switch; And
When linkage unit linked to each other with article, movable part was pushed to the inboard that connects the surface by extension rod.
7. thief-proof supervising device as claimed in claim 5 is characterized in that,
Linkage unit also comprises an elastic component, and this elastic component can move along with the movable part of switch; And
When linkage unit linked to each other with article, movable part was pushed to the inboard that connects the surface by elastic component.
8. thief-proof supervising device as claimed in claim 4 is characterized in that,
The first of linkage unit is a pin thread,
This pin thread is provided with an aperture along the longitudinal extension of pin thread,
Switch is configured to and can moves in this aperture of pin thread, and
Switch is pressed towards the outside that connects the surface.
9. thief-proof supervising device as claimed in claim 1 is characterized in that, the first of linkage unit can be coupled on the screw thread of article by spiral, and first is formed screw thread by the screw thread of article simultaneously.
10. one kind is used for thief-proof supervising device and has one connecting the linkage unit of surface to link to each other with article, and this linkage unit comprises:
Whether one detecting element, this detecting element are used to detect linkage unit and link to each other with article; And
One first, but this first's spiral is coupled on the screw thread of article and is arranged on and connects the surface; Wherein
Be coupled on the screw thread of article by first's spiral, linkage unit can be connected on the article linkage unit.
11. linkage unit as claimed in claim 10 is characterized in that, the article that link to each other with linkage unit are camera or camera.
12. linkage unit as claimed in claim 11 is characterized in that, the first of linkage unit can be coupled on the screw thread of article by spiral, and the screw thread of the article that are provided with on the article is used for tripod is connected to article.
13. linkage unit as claimed in claim 10 is characterized in that,
Detecting element is a switch, and this switch comprises a movable part and a contact,
The contact is in the state of moving or closure state according to the position of movable part,
Movable part is pressed towards in the outside that connects the surface,
When movable part is pushed to when connecting surface inboard, the contact is in closure state, and movable part can be positioned at the inboard of a normal place like this,
When movable part was positioned at normal place or be positioned at the outside of normal place, the contact was in open mode, and
Linkage unit can link to each other with article, so that movable part is pushed to the inboard that connects the surface, and movable part is positioned at the inboard of normal place, and the contact is set in the closure state thus.
14. linkage unit as claimed in claim 13 is characterized in that,
The first of linkage unit is a pin thread,
Pin thread is provided with an aperture along the longitudinal extension of pin thread, and
At least a portion of the movable part of switch is arranged in the aperture of pin thread.
15. linkage unit as claimed in claim 14 is characterized in that,
Linkage unit also comprises an extension rod, and this extension rod can move along with the movable part of switch; And
When linkage unit linked to each other with article, movable part was pushed to the inboard that connects the surface by extension rod.
16. linkage unit as claimed in claim 14 is characterized in that,
Linkage unit also comprises an elastic component, and this elastic component can move along with the movable part of switch; And
When linkage unit linked to each other with article, movable part was pushed to the inboard that connects the surface by elastic component.
17. linkage unit as claimed in claim 13 is characterized in that,
The first of linkage unit is a pin thread,
This pin thread is provided with an aperture along the longitudinal extension of pin thread,
Switch is configured to and can moves in this aperture of pin thread, and
Switch is towards the outside biasing that connects the surface.
18. linkage unit as claimed in claim 10 is characterized in that, the first of linkage unit can be coupled on the screw thread of article by spiral, and first is formed screw thread by the screw thread of article simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02148249 CN1228744C (en) | 2002-10-31 | 2002-10-31 | Anti-theft monitor and connecting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02148249 CN1228744C (en) | 2002-10-31 | 2002-10-31 | Anti-theft monitor and connecting unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1494041A true CN1494041A (en) | 2004-05-05 |
| CN1228744C CN1228744C (en) | 2005-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02148249 Expired - Fee Related CN1228744C (en) | 2002-10-31 | 2002-10-31 | Anti-theft monitor and connecting unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1228744C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101583984B (en) * | 2007-01-12 | 2012-12-12 | Invue安全产品公司 | Security display with central control system |
| CN113763656A (en) * | 2021-10-27 | 2021-12-07 | 宁波绿阳智汇电气科技有限公司 | Displacement-preventing optical fiber vibration detection security early warning monitoring system for cable well |
-
2002
- 2002-10-31 CN CN 02148249 patent/CN1228744C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101583984B (en) * | 2007-01-12 | 2012-12-12 | Invue安全产品公司 | Security display with central control system |
| CN113763656A (en) * | 2021-10-27 | 2021-12-07 | 宁波绿阳智汇电气科技有限公司 | Displacement-preventing optical fiber vibration detection security early warning monitoring system for cable well |
| CN113763656B (en) * | 2021-10-27 | 2023-01-06 | 宁波绿阳智汇电气科技有限公司 | Displacement-preventing optical fiber vibration detection security early warning monitoring system for cable well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1228744C (en) | 2005-11-23 |
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Granted publication date: 20051123 Termination date: 20131031 |