TWI618639B - Smart seal with locking mechanism - Google Patents

Abstract

The invention discloses a smart stamp with a locking mechanism, which comprises an upper cover, a lower cover, a retaining ring, a turning mechanism, a locking mechanism and a first stepping motor. In the initial state, the smart stamp with the locking mechanism is disposed in the pad sleeve, and the chapter face is facing up, and is hidden inside the accommodating space; the stamp cover is placed on the lower cover; when needed When the stamping operation is performed, the locking mechanism moves to unlock the turning mechanism, and then the first stepping motor drives the turning mechanism to flip 180° around the center of the left rotating shaft, and the stamp face of the printing pad faces downward and is exposed; then, The smart stamp is placed flat at the position where the stamp is required, and is pressed vertically downward, and the shrapnel is shrunk upward. It can be seen that the present invention can effectively prevent the user from privately stamping the stamp.

Description

Smart seal with locking mechanism

The invention relates to the field of intelligent office equipment, in particular to a smart seal with a locking mechanism.

With the development and popularization of computers, paper files are slowly shifting to electronic files, which can save resources and improve efficiency. Specific paper contracts can use electronic contracts, paper invoices can use electronic invoices, and so on. Traditionally, paper contracts and paper invoices need to be stamped with official seals to prevent counterfeiting and prevent tampering. After being converted into electronic files, corresponding electronic certificates and electronic signatures based on computer encryption technology can be attached to electronic files to prevent counterfeiting and prevent tampering. It has been adopted by most countries. Recognition.

However, the transition from paper files to electronic files requires a long process. At present, electronic files can be used in some cases, and paper files can only be used in some cases. In addition, in the course of use, it is stipulated that the two forms must exist at the same time. In the case of using the electronic file, the paper file is reserved for backup at the same time.

There are still some restrictions on the use of the electronic official seal. At present, the use of the PC is relatively mature. Insert the electronic password key into the USB port of the PC and use it. However, if you are on a business trip, you also need to carry it with you and it is easy to lose. Increasingly popular on mobile phones and PADs, electronic password keys cannot be used because of system and interface limitations.

As can be seen from the foregoing scenes, the electronic seal has the same function as the physical seal, both to prevent counterfeiting and prevent tampering, but their use is currently fragmented. The electronic seal usually exists in the form of an electronic cipher key, and the physical seal is still a traditional physics. The official seal, from use to custody, is also inconsistent, causing a lot of confusion for the company.

Moreover, in China, the stamp represents the legally authorized authorization or recognition of the seal corresponding to the company, so the use of the official seal is very serious. If the use of the official seal cannot be effectively supervised and managed, the custody of the official seal is privately stamped on the file that has not been approved by the enterprise. The remedial measures afterwards can only be raised to legal proceedings, which is time-consuming and laborious. Cause huge losses to the enterprise.

The object of the present invention is to provide a smart stamp with a locking mechanism which adopts a mechanical locking method so that even if the holder is not authorized to pass it, it is impossible to stamp it; only when the authorization is passed. The stamping action can be completed by the holder.

The technical solution of the present invention adopts the following technical solution: a smart seal with a locking mechanism;

The stamp comprises an upper cover, a lower cover, a retaining ring, a turning mechanism and a first stepping motor;

a bottom of the lower cover is provided with a circular opening, and a lower end of the upper cover is fixed to the lower cover;

The retaining ring is cylindrical, and is located directly above the circular opening; the upper end of the retaining ring is fixed on the upper cover, and the lower end thereof is fixed on the lower cover;

The turning mechanism includes a left rotating shaft, a right rotating shaft, a rotating upper cover, a rotating lower cover, a first spring and a pad cover;

The left rotating shaft is rotatably disposed between the retaining ring and the lower cover and located at a radial left side of the retaining ring; the right rotating shaft is disposed between the retaining ring and the lower cover, and Located on the radial right side of the retaining ring;

The rotating lower cover has a shape of a rotating body, and two ends of the rotating lower cover are respectively fixed to the left rotating shaft and the right rotating shaft, and the lower end of the rotating lower cover is located at a circular opening of the lower cover Inside;

The rotating lower cover is provided with a receiving groove for accommodating the first spring, and the first spring is disposed in the receiving groove;

The rotating upper cover is in the form of a rotating body, and the two ends of the rotating upper cover are respectively fixed to the left rotating shaft and the right rotating shaft, and the pad cover is disposed in the rotating upper cover and can be along the Rotating the axial direction of the upper cover to slide on the inner side wall of the rotating upper cover; the first spring is disposed on the printing pad cover;

The first stepping motor is fixed on the lower cover, and an output shaft thereof is drivingly connected to the left rotating shaft;

The locking mechanism includes a second stepping motor, a cam and a locking piece, and the cam is fixed to an output shaft of the second stepping motor; the retaining ring is provided with a slot in a horizontal direction, and the locking piece can be Slidably disposed in the slot, and the locking plate is provided with a counterbore that cooperates with the cam. When the second stepping motor drives the cam to rotate, the cam can drive the locking piece to move linearly, so that the lock The sheet can enter and exit the interior of the retaining ring; when the locking tab is located in a slot on the retaining ring, the locking tab can lock the turning mechanism when the lock The turning mechanism is rotatable when the sheet is separated from the groove in the retaining ring.

Optionally, the contact surface of the rotating lower cover and the lower cover is a spherical surface, and the circular opening of the lower cover forms a spherical surface that cooperates with the spherical surface of the rotating lower cover.

Optionally, the receiving slots are vertically disposed, and the number thereof is three or four, and the receiving slots are evenly distributed along the circumferential direction of the rotating lower cover.

Optionally, an end of the rotating upper cover away from the left rotating shaft and the right rotating shaft is inwardly convex, and an inner flange is formed; a retaining ring is formed on an outer sidewall of the printing pad cover, and the retaining ring is formed. Cooperating with the inner flange; the first spring is in a pre-compressed state.

Optionally, the surface of the rotating upper cover combined with the retaining ring is a spherical surface, and the spherical surface of the rotating upper cover can cooperate with the spherical surface of the lower cover.

Optionally, the smart stamp with the locking mechanism further includes a travel switch or a pot piece, and the travel switch or the pot piece is disposed on the rotating lower cover, when the printing pad sleeve is close to the rotation When the cover is closed, the stroke switch or the pot piece is triggered.

Optionally, the smart stamp with the locking mechanism further includes a spring piece and a second spring; the number of the elastic pieces is two, and the cross section is a circular arc shape; the openings of the two elastic pieces are opposite; the lower cover is An arc groove for guiding the elastic piece is opened; one end of the second spring is disposed on the upper cover, and the other end is disposed on the elastic piece.

Optionally, the smart seal with the locking mechanism further includes a control system, where the control system includes an MCU control unit, and a storage unit, a communication unit, an identification unit, and a display unit that are connected to the MCU control unit. The trip switch or the dome signal is connected to the MCU control unit; and the MCU control unit is respectively connected to the first step motor and the second step motor through a relay.

The invention has the following beneficial effects: when the smart stamp with the locking mechanism of the invention is in the initial state, the printing pad is disposed in the printing pad sleeve, and the chapter face is facing upward, and is hidden inside the accommodating space; the stamp cover is On the lower cover; when the stamping operation is required, the first stepping motor drives the turning mechanism to flip 180° around the center of the left rotating shaft, and the stamp face of the printing pad faces downward and is exposed; then, the locking device can be locked The intelligent seal of the mechanism is placed at the position where it needs to be stamped, pressed vertically downwards, the shrapnel is shrunk upwards, and the control of the first stepping motor is controlled to control the printing pad, thereby effectively preventing the user from privately stamping the seal. behavior.

The technical solutions of the present invention are further described below in conjunction with the embodiments and the accompanying drawings.

Example 1

The embodiment provides a smart stamp with a locking mechanism, which includes an upper cover 301, a lower cover 302, a retaining ring 303, a turning mechanism, a locking mechanism, a first stepping motor 304, and a control system.

a circular opening is formed in a bottom of the lower cover, and a lower end of the upper cover is fixed on the lower cover, so that an accommodating space is provided between the upper cover and the lower cover to lock the locking mechanism Other components of the smart stamp, such as a flip mechanism, a retaining ring, and a first stepper motor, are placed in the housing space.

The retaining ring is cylindrical, and is located directly above the circular opening, that is, the hollow portion of the cylindrical retaining ring coincides with the axis of the circular opening; the upper end of the retaining ring is fixed at the The cover is described, and the lower end thereof is fixed to the lower cover.

The turning mechanism includes a left rotating shaft 305, a right rotating shaft 306, a rotating upper cover 307, a rotating lower cover 308, a first spring 309, and a pad cover 310;

Referring to FIG. 1, the left rotating shaft and the right rotating shaft axis coincide, and the left rotating shaft is rotatably disposed between the retaining ring and the lower cover, and is located on a radial left side of the retaining ring; The right rotating shaft is disposed between the retaining ring and the lower cover, and is located at a radial right side of the retaining ring. In this embodiment, the left rotating shaft and the right turn can be opened on the retaining ring. a through hole of the shaft such that the left and right rotating shafts may be located in the through hole and located between the retaining ring and the lower cover.

The rotating lower cover is in the form of a rotating body, and the two ends of the rotating lower cover are respectively fixed to the left rotating shaft and the right rotating shaft. In this embodiment, the lower end of the rotating lower cover is located under the a circular opening in the cover, and a contact surface of the rotating lower cover and the lower cover is a spherical surface, and a circular surface of the lower cover forms a spherical surface matching the spherical surface of the rotating lower cover.

The rotating lower cover is provided with a receiving groove for accommodating the first spring, and the receiving groove is vertically disposed. In this embodiment, the number of the receiving slots may be three, four, etc., and the capacity is The groove is evenly distributed along the circumferential direction of the rotating lower cover, and the first spring is disposed in the receiving groove.

The rotating upper cover is in the form of a rotating body, and the two ends of the rotating upper cover are respectively fixed to the left rotating shaft and the right rotating shaft. In this embodiment, the printing pad cover is slidably disposed on the rotating The inner cover, that is, the pad cover, is slidable along the inner side wall of the upper cover in the axial direction of the rotary upper cover. In this embodiment, in order to effectively fix the position of the pad cover, the upper end of the rotating upper cover (one end away from the left rotating shaft and the right rotating shaft) is inwardly convex, and an inner flange is formed. At the same time, the outer side wall of the pad cover is formed with a retaining ring, the retaining ring is matched with the inner flange; and the upper end of the first spring is disposed on the pad cover, a spring is in a pre-compressed state; such that the first spring pushes the pad sleeve up such that the retaining ring contacts the inner flange such that the pad sleeve cannot rotate along the The upper cover is free to slide in the axial direction.

In this embodiment, preferably, the surface of the rotating upper cover combined with the retaining ring is also a spherical surface, and the spherical surface of the rotating upper cover may also cooperate with the spherical surface of the lower cover when the turning mechanism is turned over. The spherical surface of the rotating upper cover cooperates with the spherical surface of the lower cover, and the rotating upper cover is located in the circular opening of the lower cover.

In this embodiment, in order to drive the rotation of the left shaft and the right shaft, in the embodiment, the first stepping motor is fixed on the lower cover, and the output shaft thereof is connected to the left shaft. The inversion mechanism is turned over by the first stepping motor.

The locking mechanism includes a second stepping motor 316, a cam 317 and a locking piece 318, the cam being fixed to an output shaft of the second stepping motor such that the second stepping motor can drive the cam Rotating; a groove is formed in the retaining ring in the horizontal direction, the locking piece is slidably disposed in the groove, and the locking piece is provided with a counterbore engaged with the cam, when the second step When the motor drives the cam to rotate, the cam can drive the locking piece to move linearly, so that the locking piece can enter and exit the inside of the retaining ring; in this embodiment, the bottom surface of the groove is Rotating the upper surface of the upper cover on the same plane, or slightly higher than rotating the upper cover, so that when the locking piece is located in the groove, the locking piece can lock the turning mechanism, so that the turning mechanism cannot rotate, When the locking piece is separated from the slot, the turning mechanism can be rotated; in this embodiment, the locking piece can pass through the slot and is located inside the retaining ring to achieve the The locking mechanism is locked.

When the smart stamp with the locking mechanism is used, in order to effectively detect the stamping number of the smart stamp with the locking mechanism, in the embodiment, the smart stamp with the locking mechanism further includes a detecting device 312. The detecting device is a stroke switch or a pot piece, and the stroke switch or the pot piece is disposed on the rotating lower cover, and when the stamp is stamped, the pad cover is close to the rotating lower cover, and triggering the The stroke switch or the pot piece action realizes the recognition of the stamping operation. When the number of triggers is counted, the counting function of the number of stampings can be realized.

In this embodiment, in the stamping, in order to realize the bounce of the smart stamp with the locking mechanism, the smart stamp with the locking mechanism further includes a spring piece 313 and a second spring 314; in this embodiment, The number of the elastic pieces is two, and the cross section thereof is a circular arc shape, and the lower cover is provided with a circular arc groove for guiding the elastic piece; one end of the second spring is disposed on the upper cover. The other end is disposed on the elastic piece.

In this embodiment, the smart seal with the locking mechanism further includes a stamp cover 315, which can be screwed to the lower cover or snapped onto the lower cover to pass The stamp cover effectively protects the smart stamp with the locking mechanism. When the stamp cover is attached to the lower cover, it can press the elastic piece into the accommodating space of the upper cover and the lower cover.

In the initial state, the smart stamp with the locking mechanism is disposed in the pad sleeve, and the chapter face is facing up, and is hidden inside the accommodating space; the stamp cover is placed on the lower cover; when needed When the stamping operation is performed, the stamp cover is first taken out, and the elastic piece protrudes downward under the action of the second spring to support the entire smart stamp with the locking mechanism; after that, the second stepping motor starts to work and locks The sheet is unscrewed from the groove of the retaining ring, so that the turning mechanism is unlocked; then the first stepping motor starts to work, and the turning mechanism is rotated 180° around the center of the left rotating shaft, and the stamp face of the printing pad faces downward, and Exposed; then, the smart stamp with the locking mechanism can be placed flat at the position where it needs to be stamped, and pressed vertically downwards, the shrapnel is shrunk upwards, and after the chapter surface touches the paper, the pad cover is moved upward by pressure. The embossing pad has a protrusion directly facing the stroke switch or the pot piece, pressing the stroke switch or the pot piece, and issuing a stamping completion instruction; when the stamping is completed, releasing the intelligence with the locking mechanism Seal, shrapnel will have the wisdom of the locking mechanism When the stamp is bounced, the first stepping motor rotates the turning mechanism 180°, and the stamp face of the printing pad faces up, and is hidden inside the accommodating space; at this time, the second component motor rotates, drives the locking piece to rotate, and makes the locking piece Entering the groove of the retaining ring locks the turning mechanism.

In this embodiment, to control the first stepping motor and the second stepping motor, the control system includes an MCU control unit, and a storage unit, a communication unit, and an identity identification signal connected to the MCU control unit. Units and display units, etc.

In this embodiment, the storage unit is configured to store a working system, and the MCU control unit runs the operating system, and performs data communication with an external network (server) through the communication unit, thereby implementing the control system and the server. And the identity recognition unit may include a fingerprint recognition module, an iris recognition module, a vein recognition module, and the like; the identity recognition unit may identify the fingerprint recognition module, the iris recognition module, and the vein recognition module The applicant's characteristics are sent to the MCU control unit, and the MCU control unit sends the applicant's characteristics received by the MCU to the server to issue an authorization request. In this embodiment, the display unit may be a capacitive touch screen, and the functions of the various functions may be controlled by the capacitive touch screen.

After the authorization application is passed, the MCU control unit controls the rotation of the second stepping motor, so that the turning mechanism is unlocked, then the first stepping motor rotates, the operating turning mechanism rotates 180 degrees, and then stops the action of the first stepping motor; It can be stamped.

And each time the stamp is stamped, the travel switch or the cooker chip is triggered once, and the travel switch or the cooker chip is connected with the MCU control unit to send the trigger signal to the MCU control unit. The MCU control unit counts the trigger signal; when the count value reaches the authorized number of times or the flip mechanism rotates 180 degrees and remains for a certain time, for example, 10 seconds, the MCU control unit controls the first stepper motor to reverse Rotate 180 degrees to take the pad into the space.

At the same time, the communication unit can also integrate functions such as base station, WIFI, Bluetooth, GPS, etc., therefore, the telecommunication base station number, IP address, geographic latitude and longitude information where the stamping operation occurs can be jointly sent to the servo. At the device end, the server performs comprehensive positioning based on the above information, and obtains the location of the current smart seal with the locking mechanism.

The authorization of the present invention can be completed in the following manner. When the applicant identifies the identity through the identity identification unit, the server sends an authorization request to the server, and the server assigns the authorization application to the authorized user terminal, and the authorized person issues the authorization permission. After the smart seal of the locking mechanism receives the authorization reply, it performs the corresponding action. In this embodiment, the license includes a combination of three factors: the authorized person, the authorized time, and the authorized number, and the matching identity information of the applicant matches the identity characteristic data in the authorized person list, or To be compared, anyone is authorized. The authorization period means that the authorization remains valid for a specified period of time, during which the authorization application is valid, and no authorization or authorization is invalid outside the period. The number of times authorized is that the seal can be allowed several times at a time. The authorized person may pre-issue the license to the service system, or when the service system receives the authorization request, the authorized person issues the corresponding license. Each smart seal with a locking mechanism has a unique number in the system, and the service system receives the request for the identity information of the applicant with the smart seal of the lock mechanism, and matches the current license to implement the authorization response.

In this embodiment, in order to combine the electronic seal and the physical seal to facilitate the use of the user, the smart seal also has the function of an electronic seal, that is, the control system further includes a USB HUB, so that the smart seal is further The USB HUB can be connected to a computer (server or personal PC), and the MCU control chip runs the USB DEVICE protocol. The electronic cipher key chip also runs the USB DEVICE protocol, which are two independent USB DEVICE devices connected via USB HUB. To the PC, so that the smart stamp has the function of the traditional electronic seal.

In addition, the MCU control chip can also be converted to a network server mode. At this time, it is no longer connected to the computer. Instead, it binds its dynamic IP address to a specific function variable name through the DDNS protocol, which can be used on the network. Other devices provide network services. At this point it runs the USB HOST protocol, which operates the electronic cipher key running the USB DEVICE protocol, thereby converting the electronic official seal function into a web WE SERVICE call.

The order of the above embodiments is merely for convenience of description and does not represent the advantages and disadvantages of the embodiments.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

301 Upper cover 302 Lower cover 303 Retaining ring 304 First stepping motor 305 Left rotation shaft 306 Right rotation shaft 307 Rotating upper cover 308 Rotating lower cover 309 First spring 310 Pad sleeve 311 Pad 312 Detection device 313 Spring piece 314 Second spring 315 Stamp cover 316 second stepper motor 317 cam 318 lock piece

1 is a schematic structural view of a smart stamp with a locking mechanism according to the present invention. FIG. 2 is a schematic view showing the structure of the stamp cover removed in FIG. 1 (the shrapnel is ejected). Figure 3 is a bottom view of Figure 2. 4 is a schematic structural view of the inverting mechanism of FIG. 2 after being rotated by 180 degrees. Figure 5 is a schematic view showing the structure of the control system of the present invention.

Claims (8)

A smart stamp with a locking mechanism, comprising: an upper cover, a lower cover, a retaining ring, a turning mechanism, a locking mechanism and a first stepping motor; the bottom of the lower cover is provided with a circular opening, the upper cover The lower end is fixed to the lower cover; the retaining ring is cylindrical and located directly above the circular opening; the upper end of the retaining ring is fixed to the upper cover, and the lower end thereof is fixed to the The turning mechanism includes a left rotating shaft, a right rotating shaft, a rotating upper cover, a rotating lower cover, a first spring and a pad cover; the left rotating shaft is rotatably disposed on the retaining ring and the lower cover And located on the left side of the radial direction of the retaining ring; the right rotating shaft is disposed between the retaining ring and the lower cover, and is located on a right side of the radial direction of the retaining ring; a radial shape, the two ends of the rotating lower cover are respectively fixed to the left rotating shaft and the right rotating shaft, and the lower end of the rotating lower cover is located in the circular opening of the lower cover; a receiving groove for accommodating the first spring, the first spring is disposed in the receiving groove; The rotating upper cover is in the form of a rotating body, and the two ends of the rotating upper cover are respectively fixed to the left rotating shaft and the right rotating shaft, and the pad cover is disposed in the rotating upper cover and can be along the Rotating the axial direction of the upper cover to slide on the inner side wall of the rotating upper cover; the first spring is disposed on the printing pad cover; the first stepping motor is fixed on the lower cover, and the output shaft thereof The locking mechanism includes a second stepping motor, a cam and a locking piece, the cam is fixed to an output shaft of the second stepping motor; a slot is formed, the locking piece is slidably disposed in the slot, and the locking piece is provided with a counterbore that cooperates with the cam. When the second stepping motor drives the cam to rotate, the cam The locking piece can be driven to move linearly so that the locking piece can enter and exit the inside of the retaining ring; when the locking piece is located in the groove on the retaining ring, the locking piece can be locked The turning mechanism, when the locking piece is located in the groove on the retaining ring When open, the inverting mechanism can be rotated. The smart stamp with a locking mechanism according to claim 1, wherein the contact surface of the rotating lower cover and the lower cover is a spherical surface, and the circular opening of the lower cover is formed. The spherical surface of the spherical surface of the lower cover is rotated. The smart stamp with a locking mechanism according to claim 2, wherein the accommodating groove is vertically disposed, and the number thereof is three or four, and the accommodating groove is rotated along the same The circumference of the lower cover is evenly distributed. The smart stamp with a locking mechanism according to claim 3, wherein an end of the rotating upper cover away from the left rotating shaft and the right rotating shaft is inwardly convex, and an inner flange is formed; A retaining ring is formed on the outer side wall of the pad sleeve, and the retaining ring cooperates with the inner flange; the first spring is in a pre-compressed state. The smart stamp with a locking mechanism according to claim 4, wherein the surface of the rotating upper cover combined with the retaining ring is a spherical surface, and the spherical surface of the rotating upper cover can be combined with the lower cover The spherical surface matches. The smart stamp with a locking mechanism according to claim 5, further comprising a stroke switch or a pot piece, wherein the stroke switch or the pot piece is disposed on the rotating lower cover, When the pad cover is close to the rotating lower cover, the travel switch or the pan is triggered. The smart stamp with a locking mechanism according to claim 6, further comprising a spring piece and a second spring; the number of the elastic pieces is two, and the cross section is a circular arc shape; two elastic pieces The opening is opposite; the lower cover is provided with a circular arc groove for guiding the elastic piece; one end of the second spring is disposed on the upper cover, and the other end is disposed on the elastic piece. The smart stamp with a locking mechanism according to claim 7 is characterized in that it further comprises a control system, the control system comprising an MCU control unit, and a storage unit and a communication unit connected with the MCU control unit signal. And an identification switch unit and a display unit; the travel switch or the dome signal is connected to the MCU control unit; and the MCU control unit is respectively connected to the first step motor and the second step motor through a relay.