CN207194635U - A kind of electronic lock - Google Patents

Abstract

The utility model provides a kind of electronic lock, including：Lock core, including the hard contact positioned at the lock core front end and the internal circuit positioned at the lock core rear end；And protection device, between the hard contact and the internal circuit, wherein, when being correctly inserted into key, the protection device conducting so that connect the hard contact and the internal circuit.The utility model adds protection device between the hard contact and internal circuit of lock core; only when key is correctly inserted into; hard contact can just turn on internal circuit, prevent key from can be shocked by electricity after extracting with forceful electric power hard contact the problem of causing lock core to damage, so as to being played a protective role to lock core.

Description

A kind of electronic lock

Technical field

Lock field is the utility model is related to, in particular to a kind of electronic lock.

Background technology

With the development of society, electronic lock is used in the antitheft door of building owner more and more.The key of electronic lock and Hard contact is left on lock core, is generally communicated between electronic lock and key by way of hard contact.

The external metallization contact of existing electronic lock cylinder typically directly contacts with lock core internal circuit, is not protected inside lock core Protection unit, the electrode on lock core can be contacted with forceful electric power after key extraction, causes lock core to burn, may seriously cause electronic lock Failure, therefore very big potential safety hazard be present.

Therefore, it is necessary to a kind of new electronic lock is proposed, to solve existing technical problem.

Utility model content

A series of concept of reduced forms is introduced in utility model content part, this will be in specific embodiment part Middle further description.Utility model content part of the present utility model is not meant to attempt to limit claimed Technical scheme key feature and essential features, do not mean that the guarantor for attempting to determine technical scheme claimed more Protect scope.

In order to overcome the problem of presently, there are, the utility model provides a kind of electronic lock, including：

Lock core, including the hard contact positioned at the lock core front end and the internal circuit positioned at the lock core rear end；And

Protection device, between the hard contact and the internal circuit,

Wherein, when being correctly inserted into key, the protection device conducting so that connect the hard contact and the inside Circuit.

In one embodiment of the present utility model, wherein the protection device includes：

Reset switch, it is arranged on inside the lock core, between the hard contact and the internal circuit；

Push rod, it is arranged on above the lock core, can moved forward and backward along the lock core；And

Flexible Reset body, it is engaged with the push rod, and the push rod can be promoted to move forward.

In one embodiment of the present utility model, the reset switch includes Switch main body and button, when the button When being pressed into the Switch main body, the reset switch conducting so that the hard contact establishes electricity with the internal circuit Connection.

In one embodiment of the present utility model, the push rod includes the body of rod and a support feet, wherein the support Pin is positioned close at the lever front end face, and is arranged on the body of rod adjacent to the side of the button, to support the bar Body is upwardly deviated from the button certain distance.

In one embodiment of the present utility model, the push rod includes the body of rod and two support feets, wherein described two Support feet is separately positioned at the lever front end face, and is arranged on the monosymmetric position of the body of rod, with support The body of rod is upwardly deviated from the button certain distance.

In one embodiment of the present utility model, the push rod also includes joint portion, and the joint portion is along the body of rod Direction extends, and its one end engages with the support feet, and the other end engages with the Flexible Reset body.

In one embodiment of the present utility model, the Flexible Reset body includes helical spring.

The utility model adds protection device between the hard contact and internal circuit of lock core, only correct in key During insertion, hard contact can just turn on internal circuit, prevent key from can cause lock core with forceful electric power electric shock hard contact after extracting The problem of damage, so as to be played a protective role to lock core.

Brief description of the drawings

Drawings below of the present utility model is used to understand the utility model in this as a part of the present utility model.Accompanying drawing In show embodiment of the present utility model and its description, for explaining principle of the present utility model.

In accompanying drawing：

Fig. 1 is the overall structure block diagram according to electronic lock of the present utility model；

Fig. 2 be according to the example arrangement schematic diagram of electronic lock in one embodiment of the present utility model, Fig. 1, wherein Electronic lock is in the lock state；And

Fig. 3 is the schematic diagram that released state is according to electronic lock in one embodiment of the present utility model, Fig. 2.

Embodiment

In the following description, a large amount of concrete details are given more thoroughly to manage the utility model to provide Solution.It is, however, obvious to a person skilled in the art that the utility model can be without one or more of these thin Save and be carried out.In other examples, in order to avoid obscuring with the utility model, for more well known in the art Technical characteristic is not described.

It should be appreciated that the utility model can be implemented in different forms, and should not be construed as being limited to carry here The embodiment gone out.On the contrary, providing these embodiments disclosure will be made thoroughly and complete and the scope of the utility model is complete Ground passes to those skilled in the art.In the accompanying drawings, for clarity, the size and relative size in Ceng He areas may be exaggerated. Same reference numerals represent identical element from beginning to end.

It should be understood that when element or layer be referred to as " ... on ", " with ... it is adjacent ", " being connected to " or " being coupled to " other members When part or layer, its can directly on other elements or layer, it is adjacent thereto, be connected or coupled to other elements or layer, or There may be element or layer between two parties.On the contrary, when element be referred to as " on directly existing ... ", " with ... direct neighbor ", " be directly connected to To " or when " being directly coupled to " other elements or layer, then element or layer between two parties is not present.It should be understood that although art can be used Language first, second, third, etc. describe various elements, part, area, floor and/or part, these elements, part, area, floor and/or portion Dividing to be limited by these terms.These terms are used merely to distinguish an element, part, area, floor or part and another Element, part, area, floor or part.Therefore, do not departing under the utility model teaching, the first element discussed below, portion Part, area, floor or part are represented by the second element, part, area, floor or part.

Spatial relationship term for example " ... under ", " ... below ", " below ", " ... under ", " ... on ", " above " etc., herein can for convenience description and by using so as to describe an element shown in figure or feature with it is other The relation of element or feature.It should be understood that in addition to the orientation shown in figure, spatial relationship term be intended to also including the use of with The different orientation of device in operation.For example, if the device upset in accompanying drawing, then, is described as " below other elements " Or " under it " or " under it " element or feature will be oriented to other elements or feature " on ".Therefore, exemplary term " ... below " and " ... under " it may include upper and lower two orientations.Device, which can be additionally orientated, (to be rotated by 90 ° or other takes To) and spatial description language as used herein correspondingly explained.

The purpose of term as used herein is only that description specific embodiment and not as limitation of the present utility model. This is in use, " one " of singulative, "one" and " described/should " be also intended to include plural form, unless context understands finger Go out other mode.It is also to be understood that term " composition " and/or " comprising ", when in this specification in use, determine the feature, Integer, step, operation, the presence of element and/or part, but it is not excluded for one or more other features, integer, step, behaviour The presence or addition of work, element, part and/or group.Herein in use, term "and/or" includes any of related Listed Items And all combinations.

In order to thoroughly understand the utility model, detailed structure and step will be proposed in following description, to explain Release the utility model proposes technical scheme.Preferred embodiment of the present utility model is described in detail as follows, but except these are detailed Thin description is outer, and the utility model can also have other embodiment.

A kind of electronic lock is provided according to the utility model, it includes：

Lock core, including the hard contact positioned at the lock core front end and the internal circuit positioned at the lock core rear end；And

Protection device, between the hard contact and the internal circuit,

Wherein, when being correctly inserted into key, the protection device conducting so that connect the hard contact and the inside Circuit.

The utility model adds protection device between the hard contact and internal circuit of lock core, only correct in key During insertion, hard contact can just turn on internal circuit, prevent key from can cause lock core with forceful electric power electric shock hard contact after extracting The problem of damage, so as to be played a protective role to lock core.

Now, embodiment of the present utility model is discussed in detail in specific embodiments and the drawings.

According to embodiment of the present utility model, there is provided a kind of new electronic lock 10.The electronic lock 10 can be this Any electronic lock known to field, such as electric circuit electronics technical lock, chip electronic lock, keyboard-type electronic lock, bio-identification electronic lock etc., The utility model is to the type of electronic lock and is not limited.

As shown in figure 1, electronic lock 10 includes lock core 100 and protection device 200, wherein, protection device 200 protects lock core 100 internal circuit, it can prevent lock core can be caused to burn with the electrode on forceful electric power contact lock core after key is extracted to ask Topic.

Fig. 2 shows according to one embodiment of the present utility model, electronic lock in Fig. 1 example arrangement schematic diagram. As shown in Fig. 2 lock core 100 includes hard contact 110 and circuit board 120.

Wherein, hard contact 110 is located at the front end of lock core 100, and its one end is connected with the external structure of electronic lock 10, separately One end connects the circuit board 120 of lock core 100.Exemplarily, hard contact 110 may include metal contact 111 and metallic connection parts 112, wherein metal contact 111 is used to be connected with the external structure of electronic lock 10, and metallic connection parts 112 are connected to lock core 100 Circuit board 120.Wherein, metal contact 111 and metallic connection parts 112 can be electrically connected in any way, for example, welding or It is integrally formed.Exemplarily, the metal contact and metallic connection parts can have any shape, such as cylinder, rectangle etc..

It is disposed with the internal circuit of lock core on circuit board 120, internal circuit can be with, for example, 51 series monolithics are core, Corresponding hardware circuit is equipped with, setting, storage, identification and the display of password is completed, drives electromagnetic actuator and detect its driving electricity Flow valuve, receive alarm signal that sensor sends, send the function such as data.Wherein, single-chip microcomputer is used to receive the code keyed in, and Compared with being stored in the password in EEPROM, if password is correct, driving electromagnetic actuator is unlocked；If password is not just Really, then operating personnel are allowed to re-enter password.Exemplarily, password three times can be at most inputted, if all incorrect three times, Single-chip microcomputer is alarmed by communication line to intelligent monitor.

In one embodiment of the present utility model, protection device 200 may include：Reset switch 210, push rod 220 and multiple Position elastomer 230.

Wherein, reset switch 210 is arranged on inside lock core 100, between hard contact 110 and circuit board 120, is played Conducting and the effect of disconnecting circuit.Specifically, it is interior on hard contact 110 and circuit board 120 when reset switch 210 turns on Portion's circuit establishes electrical connection；When reset switch 210 disconnects, the internal circuit on hard contact 110 and circuit board 120 then disconnects Electrical connection.Exemplarily, reset switch 210 can be any reset switch well known in the art, for example, it may include switch originally Body 211 and button 212, when button 212 is pressed into Switch main body 211, reset switch 210 turns on, and the utility model is to multiple The species of bit switch is simultaneously not limited.

Push rod 220 may include the body of rod 221 and support feet 222, and the wherein body of rod 221 prolongs along lock core front end face to rear end face direction Stretch, in order to avoid undesirable pressing button 212, its cross section can use semicircular ring shape (as shown in Figure 2)；Support feet 222 It is positioned close at the front end face of the body of rod 221, and is arranged on the side of the proximate buttons 212 of the body of rod 221, it is upward with support rod body 221 Deviate the certain distance of button 212.

In one embodiment of the present utility model, in order that when movable push rod 220 stable movement, it may include Two support feets, it is separately positioned at the lever front end face, and is arranged on the monosymmetric position of the body of rod.

In one embodiment of the present utility model, push rod 220 also includes joint portion 223, and the joint portion 223 is along the body of rod 221 directions extend, and its one end engages with support feet 222, and the other end engages with Flexible Reset body 230.

The Flexible Reset body 230 may include any suitable elastomer well known in the art that can provide elastic force, example Such as helical spring, leaf spring.

According to one embodiment of the present utility model, electronic lock 10 has lock-out state and released state.Electronic lock in Fig. 2 10 are in the lock state.Fig. 3 shows schematic diagram when electronic lock 10 is in released state.The electronic lock is in the locking During state, the Flexible Reset body is in the raw；When the electronic lock is in the released state, the Flexible Reset Body is in confined state.

Describe the course of work of protection device 200 in detail with reference to Fig. 2 and Fig. 3：

When key is not inserted into electronic lock 10, electronic lock 10 is in the lock state, and now Flexible Reset body 230 is in nature State (i.e. no power puts on Flexible Reset body), support feet 222 is not pressed onto button 212, and reset switch 210 does not turn on, metal Internal circuit on contact 110 and circuit board 120 disconnects electrical connection, even if applying forceful electric power electric shock to hard contact 110, due to multiple Bit switch 210 does not turn on, and does not interfere with internal circuit, therefore will not damage lock core yet.

When key is correctly inserted into electronic lock 10, push rod 220 is promoted to be moved rearwards, compression Flexible Reset body 230, Zhi Dao electricity Son lock 10 is in released state, and now button 212 is pressed into Switch main body 211 by support feet 222, and reset switch 210 turns on, gold The internal circuit belonged on contact 110 and circuit board 120 establishes electrical connection, and now householder simply enters password, you can opens electronics Lock 10.

When opening electronic lock, after hand leaves key, because the elastic force of Flexible Reset body 230 acts on, push rod 220 moves forward Origin-location is returned to, electronic lock reverts to lock-out state, and key is by automatic spring.

So far design of the present utility model is completed.Although a specific implementation of protection device 200 is illustrate only herein Example, it will be appreciated that, it is any that the protection device of lock core is protected by disconnection/connection hard contact and internal circuit, all should Think to fall into spirit and scope of the present utility model.

The utility model is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is For the purpose illustrated and illustrated, and it is not intended to the utility model being limited in described scope of embodiments.In addition ability Field technique personnel are it is understood that the utility model is not limited to above-described embodiment, according to teaching of the present utility model also More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model scope claimed with It is interior.The scope of protection of the utility model is defined by the appended claims and its equivalent scope.

Claims (7)

1. A kind of 1. electronic lock, it is characterised in that including：

   Lock core, including the hard contact positioned at the lock core front end and the internal circuit positioned at the lock core rear end；And

   Protection device, between the hard contact and the internal circuit, including reset switch,

   Wherein, when being correctly inserted into key, the reset switch conducting so that connect the hard contact and the internal electricity Road.
2. 2. electronic lock as claimed in claim 1, it is characterised in that wherein described protection device also includes：

   Push rod, it is arranged on above the lock core, can moved forward and backward along the lock core；And

   Flexible Reset body, it is engaged with the push rod, and the push rod can be promoted to move forward.
3. 3. electronic lock as claimed in claim 2, it is characterised in that the reset switch includes Switch main body and button, works as institute When stating button and being pressed into the Switch main body, the reset switch conducting so that the hard contact and the internal circuit Establish electrical connection.
4. 4. electronic lock as claimed in claim 3, it is characterised in that the push rod includes the body of rod and a support feet, wherein institute State support feet to be positioned close at the lever front end face, and be arranged on the body of rod adjacent to the side of the button, with support The body of rod is upwardly deviated from the button certain distance.
5. 5. electronic lock as claimed in claim 3, it is characterised in that the push rod includes the body of rod and two support feets, wherein institute State two support feets to be separately positioned at the lever front end face, and be arranged on the monosymmetric position of the body of rod, To support the body of rod to be upwardly deviated from the button certain distance.
6. 6. the electronic lock as described in claim 4 or 5, it is characterised in that the push rod also includes joint portion, the joint portion edge The body of rod direction extension, its one end engage with the support feet, and the other end engages with the Flexible Reset body.
7. 7. electronic lock as claimed in claim 2, it is characterised in that the Flexible Reset body includes helical spring.