CN215565088U - Computer key unlocking device with angle detection function - Google Patents

Abstract

The utility model discloses a computer key unlocking device with an angle detection function.A conductive outer ring is provided with an induction gap with an opening facing an angle detection module; the angle detection module comprises a conductive detection rod and a detection plate, one end of the conductive detection rod is electrically connected with the detection plate, and the other end of the conductive detection rod faces the induction notch; when the conductive outer ring is in an initial state or does not rotate to an unlocking position or a locking position, the conductive detection rod is not in contact with the inner wall of the sensing notch, and the detection plate does not generate a sensing signal; when the conductive outer ring rotates to the unlocking position or the locking position, the conductive detection rod is contacted with the inner wall of the induction notch, the conductive outer ring and the angle detection module form an electrified loop, and the detection board generates an induction signal. The computer key unlocking device with the angle detection function solves the problems that the structure for detecting the angle of the lock body is low in detection precision and the real position of a computer key is difficult to know from an angle value due to the fact that the existing magnet and a magnetic sensing element are used for sensing.

Description

Computer key unlocking device with angle detection function

Technical Field

The utility model relates to the technical field of electronic locks, in particular to a computer key unlocking device with an angle detection function.

Background

In power equipment management and control system and similar safety production management and control system, many equipment need carry out the control of shutting, need have when the operation and authorize just can open its tool to lock to prevent that the operation personnel from unblanking by oneself under the unauthorized condition, thereby influence equipment operation safety.

The utility model patent with publication number CN106401290B discloses an unlocking head, as shown in fig. 1, comprising a key holder 600, a key lever 100, an outer ring 200, a central shaft 300, a steel ball 400 and an electromagnet 500; the central shaft 300 is made of magnetic control material, the middle part is provided with a buffer part, when the central shaft 300 is attracted by the electromagnet 500 to move forwards to a set position, the buffer part is just positioned at the inner side of the steel ball 400 assembling hole, so that the steel ball 400 is buffered between the buffer part and the inner wall of the outer ring 200, at the moment, the steel ball 400 cannot limit the key rod 100 to rotate relative to the outer ring 200, the key rod 100 can idle relative to the outer ring 200 and the key support 600, and the computer key cannot be unlocked; when the central shaft 300 moves backwards to a set position under the action of the electromagnet 500, the buffer part is staggered with the steel ball 400 assembling hole, the steel ball 400 is pushed out by the main body of the central shaft 300, the steel ball 400 is partially embedded into the clamping groove on the inner wall of the outer ring 200, the steel ball 400 limits the key rod 100 to rotate relative to the outer ring 200 at the moment, the key rod 100 rotates along with the rotation of the outer ring 200 and the key support 600, and the computer key can be unlocked.

Although the technical scheme can realize magnetic control unlocking, when the key is unlocked, whether the rotation angle of the key rod is in place or not cannot be monitored, so that whether the computer key is unlocked or locked in place or not cannot be accurately known. The existing mechanism also adopts a structure of sensing by a magnet and a magnetic induction element to monitor whether the lock body is unlocked or locked in place, but the monitoring precision of the structure is low, and the real position of the computer key is difficult to know from an angle value.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks, the present invention provides a computer key unlocking device with an angle detection function, which detects whether a computer key is actually in an unlocked position or a locked position by detecting whether a conductive detection rod contacts with an inner wall of an induction gap, and solves the problems that the structure for detecting the angle of a lock body is low in precision and the actual position of the computer key is difficult to know from an angle value in the conventional structure for detecting the angle of the lock body by the induction of a magnet and a magnetic induction element.

In order to achieve the purpose, the utility model adopts the following technical scheme: a computer key unlocking device with an angle detection function comprises a conductive outer ring and an angle detection module;

the conductive outer ring is sleeved on the outer wall of the key rod, and rotates along with the key rod when a computer key is unlocked;

the conductive outer ring is provided with an induction gap with an opening facing the angle detection module;

the angle detection module comprises a conductive detection rod and a detection plate, one end of the conductive detection rod is electrically connected with the detection plate, and the other end of the conductive detection rod faces the induction notch;

when the conductive outer ring is in an initial state or does not rotate to an unlocking position or a locking position, the conductive detection rod is not in contact with the inner wall of the sensing notch, and the detection plate does not generate a sensing signal;

when the conductive outer ring rotates to an unlocking position or a locking position, the conductive detection rod is in contact with the inner wall of the induction notch, the conductive outer ring and the angle detection module form a powered loop, and the detection board generates an induction signal.

It is worth to say that, in the vertical direction, the inner wall of the induction gap is of a structure with a high middle part and low left and right sides;

in an initial state, the conductive detection rod faces to the middle part of the inner wall of the induction gap, and the conductive detection rod is not in contact with the inner wall of the induction gap;

when the conductive outer ring rotates to an unlocking position or a locking position along with the key rod, the conductive detection rod is in contact with the left part of the inner wall of the induction notch or the right part of the inner wall.

Optionally, the inner wall of the induction gap is of a structure with a low middle part and high left and right sides;

in an initial state, the conductive detection rod faces to the left part of the inner wall of the induction gap or the right part of the inner wall;

when the conductive outer ring rotates to an unlocking position or a locking position along with the key rod, the conductive detection rod is contacted with the middle part of the inner wall of the induction gap.

Specifically, the induction notch is of one of an arc structure, a triangular structure or a trapezoidal structure.

Preferably, the induction gap has a rectangular structure.

It is worth to say, still include the support, the pick-up plate is fixed in the support, electrically conductive detection pole is fixed in the support through the mount pad, the key lever passes the mounting hole of support and rotates in the mounting hole to drive electrically conductive outer loop rotates.

Optionally, the conductive detection rod is of a structure with two small ends and a large middle diameter or a structure with two large ends and a small middle diameter, wherein two ends of the conductive detection rod are respectively one end electrically connected with the detection plate and the other end facing the induction gap;

the mounting seat is provided with a mounting groove matched with the structure of the conductive detection rod.

Specifically, the support be equipped with mount pad matched with installation joint portion, the mount pad joint in the installation joint portion.

One of the above technical solutions has the following beneficial effects: in the computer key unlocking device with the angle detection function, two rotating positions of the conductive outer ring can be detected by whether the conductive detection rod is in contact with the inner wall of the induction notch, so that the function of detecting whether the rotating angle of the conductive outer ring is in place is realized. The problem of current magnet and the structure that the realization of magnetic induction original paper response detected the angle of lock body detect the precision is low, is difficult to know the true position that the computer key was located from the angle numerical value is solved.

When the initial state is the locking state of the computer key, before the conductive outer ring does not rotate to the unlocking position, the conductive detection rod is not contacted with the inner wall of the induction notch all the time, the detection plate does not generate an induction signal, and the upper computer can determine that the conductive outer ring does not rotate to the unlocking position or is positioned at any position between the initial state position and the unlocking position when not receiving the corresponding induction signal, so that the computer key does not realize unlocking; after the computer key obtains an unlocking signal, the conductive outer ring rotates to an unlocking position along with the key rod, the conductive detection rod is in contact with the inner wall of the induction gap, the induction signal generated by the detection plate can be sent to the upper computer, and the upper computer can determine that the computer key is unlocked after receiving the induction signal. If the upper computer does not receive the induction signal generated by the detection plate after the computer key obtains the unlocking signal, the conductive outer ring does not rotate to the unlocking position, the conductive outer ring is located at any position between the initial state position and the unlocking position, and unlocking is not really realized.

When the initial state is the unlocking state of the computer key, before the conductive outer ring does not rotate to the locking position, the conductive detection rod is not contacted with the inner wall of the induction notch all the time, the detection plate does not generate an induction signal, and the upper computer can determine that the conductive outer ring does not rotate to the locking position or is positioned at any position between the initial state position and the locking position when not receiving the corresponding induction signal, so that the computer key does not realize locking; after the computer key obtains a locking signal, the conductive outer ring rotates to a locking position along with the key rod, the conductive detection rod is in contact with the inner wall of the induction gap, the induction signal generated by the detection plate can be sent to the upper computer, and the upper computer can determine that the computer key is locked after receiving the induction signal. If the upper computer does not receive the sensing signal generated by the detection plate after the computer key obtains the locking signal, the conductive outer ring does not rotate to the locking position, the conductive outer ring is located at any position between the initial state position and the locking position, and locking is not really achieved.

Drawings

Fig. 1 is a schematic structural diagram of an unlocking head in the prior art;

FIG. 2 is a schematic structural diagram of one embodiment of the present invention;

FIG. 3 is a bottom view of a conductive outer ring in one embodiment of the present invention;

FIG. 4 is a cross-sectional view of one embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an angle detection module according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of one embodiment of the present invention;

FIG. 7 is a schematic structural diagram of one embodiment of the present invention;

FIG. 8 is a schematic structural diagram of one embodiment of the present invention;

FIG. 9 is a schematic structural diagram of one embodiment of the present invention;

wherein: 1 a conductive outer ring; 11 sensing a gap; 2, an angle detection module; 21 a conductive detection rod; 22 detecting the board; 23, mounting seats; 231 a mounting groove; 3, a bracket; 31 installing a clamping part; 4 electrode module; 5 a key lever.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With reference to fig. 2 to 9, a computer key unlocking device with an angle detection function according to an embodiment of the present invention is described, including a conductive outer ring 1 and an angle detection module 2;

the conductive outer ring 1 is sleeved on the outer wall of the key rod 5, and when a computer key is unlocked, the conductive outer ring 1 rotates along with the key rod 5;

the conductive outer ring 1 is provided with an induction gap 11 with an opening facing the angle detection module 2;

the angle detection module 2 comprises a conductive detection rod 21 and a detection plate 22, one end of the conductive detection rod 21 is electrically connected with the detection plate 22, and the other end of the conductive detection rod 21 faces the induction notch 11;

in an initial state or when the conductive outer ring 1 does not rotate to an unlocking position or a locking position, the conductive detection rod 21 is not in contact with the inner wall of the induction notch 11, and the detection plate 22 does not generate an induction signal;

when the conductive outer ring 1 rotates to an unlocking position or a locking position, the conductive detection rod 21 is in contact with the inner wall of the induction notch 11, the conductive outer ring 1 and the angle detection module 2 form a powered loop, and the detection plate 22 generates an induction signal.

As shown in fig. 2, the vertical direction is the up-down direction. In the computer key unlocking device with the angle detection function, two rotating positions of the conductive outer ring 1 can be detected by whether the conductive detection rod 21 is in contact with the inner wall of the induction notch 11, so that the function of detecting whether the rotating angle of the conductive outer ring 1 is in place is realized. The problem of current magnet and the structure that the realization of magnetic induction original paper response detected the angle of lock body detect the precision is low, is difficult to know the true position that the computer key was located from the angle numerical value is solved.

When the initial state is a locking state of a computer key, before the conductive outer ring does not rotate to an unlocking position, the conductive detection rod 21 is not contacted with the inner wall of the induction gap 11 all the time, the detection plate 22 does not generate an induction signal, and an upper computer does not receive a corresponding induction signal, so that the conductive outer ring 1 can be determined not to rotate to the unlocking position or be positioned at any position between the initial state position and the unlocking position, and the computer key does not realize unlocking; after the computer key obtains an unlocking signal, the conductive outer ring 1 rotates to an unlocking position along with the key rod 5, the conductive detection rod 21 is in contact with the inner wall of the induction gap 11, an induction signal generated by the detection plate 22 can be sent to an upper computer, and the upper computer can determine that the computer key is unlocked after receiving the induction signal. If the upper computer does not receive the sensing signal generated by the detection board 22 after the computer key obtains the unlocking signal, it indicates that the conductive outer ring 1 has not rotated to the unlocking position, and the conductive outer ring 1 is in any position between the initial state position and the unlocking position, and the unlocking is not really realized.

When the initial state is the unlocking state of the computer key, before the conductive outer ring does not rotate to the locking position, the conductive detection rod 21 is not contacted with the inner wall of the induction gap 11 all the time, the detection plate 22 does not generate an induction signal, and the upper computer does not receive the corresponding induction signal, so that the conductive outer ring 1 can be determined not to rotate to the locking position or be positioned at any position between the initial state position and the locking position, and the computer key does not realize locking; after the computer key obtains a locking signal, the conductive outer ring 1 rotates to a locking position along with the key rod 5, the conductive detection rod 21 is in contact with the inner wall of the induction gap 11, an induction signal generated by the detection plate 22 can be sent to an upper computer, and the upper computer can determine that the computer key is locked after receiving the induction signal. If the upper computer does not receive the sensing signal generated by the detection board 22 after the computer key obtains the locking signal, it indicates that the conductive outer ring 1 has not rotated to the locking position, and the conductive outer ring 1 is located at any position between the initial state position and the locking position, and locking is not really realized.

In some embodiments, as shown in fig. 2 and 3, in the vertical direction, the inner wall of the sensing notch 11 has a structure with a high middle part and two low left and right sides;

in the initial state, the conductive detection rod 21 faces to the middle part of the inner wall of the induction notch 11, and the conductive detection rod 21 is not in contact with the inner wall of the induction notch 11;

when the conductive outer ring 1 rotates to an unlocking position or a locking position along with the key lever 5, the conductive detection lever 21 contacts with a left portion of the inner wall of the sensing notch 11 or a right portion of the inner wall.

In an initial state, the height of the inner wall of the sensing gap 11 is high, a distance is kept between the inner wall of the sensing gap 11 and the conductive detection rod 21, the conductive detection rod 21 cannot be in contact with the middle part of the inner wall of the sensing gap 11, the conductive outer ring 1 cannot be conducted with the angle detection module 2, and the detection plate 22 cannot generate a sensing signal.

When the conductive outer ring 1 rotates to an unlocking position or a locking position along with the key lever 5, the height of the inner wall of the sensing notch 11 becomes lower and can be in contact with the conductive detection rod 21, so that a loop for electrifying can be formed between the conductive outer ring 1 and the angle detection module 2, and the detection plate 22 can generate a sensing signal.

In some embodiments, as shown in fig. 9, the inner wall of the sensing notch 11 has a structure with a low middle part and two high left and right sides;

in the initial state, the conductive detection rod 21 faces the left part of the inner wall of the sensing notch 11 or the right part of the inner wall;

when the conductive outer ring 1 rotates to an unlocking position or a locking position along with the key lever 5, the conductive detection lever 21 contacts with the middle part of the inner wall of the sensing notch 11.

In an initial state, the height of the left part of the inner wall of the sensing notch 11 or the height of the right part of the inner wall is high, a distance is kept between the conductive detection rod 21 and the conductive detection rod 21, the conductive detection rod 21 cannot be in contact with the middle part of the inner wall of the sensing notch 11, the conductive outer ring 1 cannot be conducted with the angle detection module 2, and the detection plate 22 cannot generate a sensing signal.

When the conductive outer ring 1 rotates to an unlocking position or a locking position along with the key lever 5, the middle height of the inner wall of the sensing notch 11 becomes lower and can be in contact with the conductive detection rod 21, so that a current-carrying loop can be formed between the conductive outer ring 1 and the angle detection module 2, and the detection plate 22 can generate a sensing signal.

It should be noted that, as shown in fig. 2, 6 and 7, the sensing notch 11 has one of an arc structure, a triangular structure or a trapezoidal structure.

The induction gap 11 with an arc structure, a triangular structure or a trapezoidal structure does not form a bulge or a depression on the inner wall of the induction gap 11, and the conductive detection rod 21 does not contact with the inner wall of the induction gap 11 to generate an error induction signal for the detection plate 22 in the rotating process of the conductive outer ring 1.

In some embodiments, as shown in fig. 8, the sensing gap 11 has a rectangular structure.

In an initial state or when the conductive outer ring 1 does not rotate to an unlocking position or a locking position, the conductive detection rod 21 is not in contact with the upper wall and the left and right side walls of the sensing notch 11 of the rectangular structure, and the detection plate 22 does not generate a sensing signal;

when the conductive outer ring 1 rotates to an unlocking position or a locking position, the conductive detection rod 21 is in contact with the left side wall or the right side wall of the sensing notch 11 with a rectangular structure, the conductive outer ring 1 and the angle detection module 2 form a powered loop, and the detection plate 22 generates a sensing signal.

Optionally, the detection device further comprises a bracket 3, the detection plate 22 is fixed to the bracket 3, the conductive detection rod 21 is fixed to the bracket 3 through a mounting seat 23, and the key rod 5 passes through a mounting hole of the bracket 3 and rotates in the mounting hole, so as to drive the conductive outer ring 1 to rotate.

When the fixed detection plate 22, the conductive detection rod 21 and the key rod 5 are all installed on the bracket 3, the positions of the detection plate 22, the conductive detection rod 21 and the key rod 5 between the bracket 3 can be kept unchanged, when the key rod 5 drives the conductive outer ring 1 to rotate, the conductive detection rod 21 is not in contact with the inner wall of the induction gap 11 in an initial state or when the conductive outer ring 1 does not rotate in place, and when the conductive outer ring 1 rotates in place, the conductive detection rod 21 is in contact with the inner wall of the induction gap 11.

Specifically, as shown in fig. 4 and 5, the conductive detection rod 21 has a structure with two ends having a smaller diameter and a larger middle diameter or a structure with two ends having a larger diameter and a smaller middle diameter, wherein two ends of the conductive detection rod 21 are respectively one end electrically connected with the detection board 22 and the other end facing the sensing notch 11;

the mounting seat 23 is provided with a mounting groove 231 matched with the structure of the conductive detection rod 21.

The conductive detection rod 21 with the above structure is installed in the installation groove 231 of the installation base 23 matched with the structure of the conductive detection rod 21, and can limit the conductive detection rod 21 from moving up and down in the installation base 23, so that poor contact between the conductive detection rod 21 and the conductive outer ring 1 or poor contact between the conductive detection rod 21 and the detection plate 22 caused by shaking is avoided.

Preferably, the bracket 3 is provided with an installation clamping portion 31 matched with the installation seat 23, and the installation seat 23 is clamped in the installation clamping portion 31.

The mounting clamping portion 31 can further limit the movement of the mounting seat 23, so that the conductive detection rod 21 is prevented from being displaced, and the precision is further improved.

Other configurations and operations of a computer key unlock device with angle detection according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (8)

1. The utility model provides a take computer key unlocking device of angle detection function which characterized in that: the device comprises a conductive outer ring and an angle detection module;

the conductive outer ring is sleeved on the outer wall of the key rod, and rotates along with the key rod when a computer key is unlocked;

the conductive outer ring is provided with an induction gap with an opening facing the angle detection module;

the angle detection module comprises a conductive detection rod and a detection plate, one end of the conductive detection rod is electrically connected with the detection plate, and the other end of the conductive detection rod faces the induction notch;

when the conductive outer ring is in an initial state or does not rotate to an unlocking position or a locking position, the conductive detection rod is not in contact with the inner wall of the sensing notch, and the detection plate does not generate a sensing signal;

when the conductive outer ring rotates to an unlocking position or a locking position, the conductive detection rod is in contact with the inner wall of the induction notch, the conductive outer ring and the angle detection module form a powered loop, and the detection board generates an induction signal.

2. The computer key unlocking device with the angle detection function of claim 1, wherein: in the vertical direction, the inner wall of the induction gap is of a structure with a high middle part and low left and right sides;

in an initial state, the conductive detection rod faces to the middle part of the inner wall of the induction gap, and the conductive detection rod is not in contact with the inner wall of the induction gap;

when the conductive outer ring rotates to an unlocking position or a locking position along with the key rod, the conductive detection rod is in contact with the left part of the inner wall of the induction notch or the right part of the inner wall.

3. The computer key unlocking device with the angle detection function of claim 1, wherein: the inner wall of the induction gap is of a structure with a low middle part and high left and right sides;

in an initial state, the conductive detection rod faces to the left part of the inner wall of the induction gap or the right part of the inner wall;

when the conductive outer ring rotates to an unlocking position or a locking position along with the key rod, the conductive detection rod is contacted with the middle part of the inner wall of the induction gap.

4. The computer key unlocking device with the angle detection function of claim 2, wherein: the induction gap is of one of an arc structure, a triangular structure or a trapezoidal structure.

5. The computer key unlocking device with the angle detection function of claim 1, wherein: the induction gap is of a rectangular structure.

6. The computer key unlocking device with the angle detection function of claim 1, wherein: the detection plate is fixed on the support, the conductive detection rod is fixed on the support through the mounting seat, and the key rod penetrates through the mounting hole of the support and rotates in the mounting hole, so that the conductive outer ring is driven to rotate.

7. The computer key unlocking device with the angle detection function of claim 6, wherein: the conductive detection rod is of a structure with two small end diameters and a large middle diameter or a structure with two large end diameters and a small middle diameter, wherein two ends of the conductive detection rod are respectively one end electrically connected with the detection plate and the other end facing the induction notch;

the mounting seat is provided with a mounting groove matched with the structure of the conductive detection rod.

8. The computer key unlocking device with the angle detection function of claim 6, wherein: the support is provided with an installation clamping portion matched with the installation base, and the installation base is clamped in the installation clamping portion.

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