CN109435506B

CN109435506B - Safety seal

Info

Publication number: CN109435506B
Application number: CN201910038178.8A
Authority: CN
Inventors: 董帅; 黄海波; 赵士兴; 齐昌兴; 孙兵兵; 胡健平
Original assignee: Hangzhou Mike Technology Co ltd
Current assignee: Hangzhou Mike Technology Co ltd
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2023-10-27
Anticipated expiration: 2039-01-16
Also published as: CN109435506A

Abstract

The application provides a safety seal which mainly comprises an inner shell, a spring, an oil chamber, a piston, a connecting rod, an oil way, a two-position three-way valve, a hydraulic rotor, a lock tongue, a lock ring and a seal body. When the safety seal is not authorized externally, the lock tongue enters the hollowed-out space in the lock ring, the lock tongue cannot drive the lock ring and the seal body to move downwards continuously, and the safety seal cannot be stamped out. When the safety seal is authorized by the outside, the lock tongue cannot enter the hollowed-out space in the lock ring, the lock tongue extrudes the lock ring and the like and drives the seal body to move downwards, and the seal effect is achieved. After one-time stamping is completed, the internal structure of the application can return to the initial state, and when stamping is needed again, the process is repeated after external authorization is obtained. The application has simple structure and lower cost, ensures that the seal body can be ejected after external authorization, protects the seal body from being used at will, simultaneously avoids the condition of being stamped for a plurality of times after one-time authorization, and increases the use safety of the seal.

Description

Safety seal

Technical Field

The application relates to a seal tool, in particular to a safety seal.

Background

The seal is used as a tool for representing identification printed on a file, so that the seal has wide application in daily business activities, and the seal is required to be used in business transactions between enterprises and various reporting and approval processes. Enterprises have legal responsibility on the files which are stamped, and the stamps can be used after being authorized for the safety of the enterprises. The traditional seal has no safety protection measure, and when and where the seal is used by anyone, the seal is difficult to manage. For example, chinese patent publication No. CN103009834B proposes a security seal, which is characterized by comprising a housing, a button, a first elastic element, a seal body disposed at the lower end of the button, a second elastic element, a locking device for locking the seal, and a password control device for controlling the locking device. Chinese patent publication No. CN106056184B proposes a security seal system and anti-counterfeiting method, the security seal system includes seal body, management server, storage unit, key set, pilot lamp, voice output module, fingerprint identification module, GPS module, pressure sensor, display screen, etc., but it has parts more, the cost is high, the stability of using is poor, defects such as the maintenance degree of difficulty is high. Therefore, a safe seal with simple structure, low cost and convenient carrying is needed to protect the daily business activities of enterprises.

Disclosure of Invention

Aiming at the problem that the safety is not strong in the use process of the existing seal, the application provides the safety seal, which not only protects the safety of the seal in use, but also has certain flexibility and convenience.

The technical scheme of the application is as follows: a safety seal comprises an outer shell, an inner shell, a spring A, a spring B, a spring C, a spring D, a spring E, an oil chamber, a piston, a connecting rod, an oil way A, an oil way B, an oil way C, an oil way D, an oil way E, a two-position three-way valve, a hydraulic rotor, a lock tongue, a lock ring and a seal body, wherein the spring A is connected between the outer shell and the top of the oil chamber, the piston is arranged in the oil chamber, the oil chamber is divided into an upper oil chamber and a lower oil chamber by the piston, the oil chamber is sealed, the oil chamber is filled with oil, the piston is connected with the outer shell through the connecting rod, the oil way A is connected with the upper oil chamber and the two-position three-way valve, the oil way B is connected with the hydraulic rotor, the oil way D and the oil way E, the oil way D is connected with the two-position three-way valve, the oil way C and the oil way E, the oil way E is connected with a lower oil chamber, an oil way C and an oil way D, the lock tongue is connected with a hydraulic rotor through a rotating shaft, the spring B and the spring C are connected between the top of the oil chamber and the inner shell, the spring D and the spring E are connected between the lock ring and the inner shell, the lock ring is connected with a seal body, the two-position three-way valve is controlled by external authorization, the hydraulic rotor comprises a rotor shell, a rotor, a stator and the rotating shaft, a cavity a and a cavity B, the hydraulic rotor is divided into two spaces of the cavity a and the cavity B by the rotor and the stator, the cavity a and the cavity B are filled with oil, the oil way B is connected with the cavity B, the oil way C is connected with the cavity a, the rotor is connected with the rotating shaft, the lock tongue is connected with the rotating shaft, the rotor can drive the lock tongue to rotate, the lock ring is hollowed, and the hollowed shape corresponds to the shape of the lock tongue.

Further, the external authorization control of the two-position three-way valve can be controlled by a coded lock or a fingerprint lock.

Further, the spring A has an elastic coefficient of KA, the spring B has an elastic coefficient of KB, and the spring C has an elastic coefficient of KC, wherein KA < (KB+KC).

Further, the springs A, B, C, D and E are compression springs.

Further, the oil is incompressible in nature.

In the initial state of the safety seal, the two-position three-way valve is communicated with the oil way A and the oil way D, the lock tongue corresponds to the hollowed-out space of the lock ring, and the oil chamber, the oil way A, the oil way B, the oil way C, the oil way D, the oil way E, the two-position three-way valve and the chambers a and B of the hydraulic rotor are filled with oil.

When the safety seal is not authorized externally, the two-position three-way valve is communicated with the oil way A and the oil way D, when the shell of the safety seal is pressed, the spring A is compressed firstly, the piston moves downwards, oil in the lower oil chamber flows back to the upper oil chamber along the oil way E and the oil way D in sequence, the shell is continuously pressed, the spring B and the spring C are compressed, the oil chamber, the oil way A, the oil way B, the oil way C, the oil way D, the oil way E, the two-position three-way valve, the hydraulic rotor and the lock tongue move downwards, the lock tongue enters a hollowed-out space in the lock ring, the lock tongue cannot drive the lock ring and the seal body to move downwards, and the safety seal cannot cover the seal.

When the safety seal is authorized by the outside, the two-position three-way valve is communicated with the oil way A and the oil way B, when the shell of the safety seal is pressed, the spring A is compressed firstly, the piston moves downwards, oil in the lower oil chamber sequentially moves along the oil way E, the oil way C enters the chamber a, the pressure in the chamber a rises to drive the rotor to rotate clockwise, the rotor drives the lock tongue to rotate, the oil in the chamber B is extruded to sequentially flow through the oil way B and the oil way A and return to the upper oil chamber, when the rotor rotates to the pipe orifice of the oil way B, the oil way B is blocked, the rotor does not rotate any more, the tongue lock rotates to a position which does not correspond to the hollowed-out space in the lock ring, the shell is continuously pressed, the spring B and the spring C are compressed, the oil chamber, the oil way A, the oil way B, the oil way C, the oil way E, the two-position three-way valve, the hydraulic rotor and the lock tongue move downwards, the lock tongue cannot enter the hollowed-out space in the lock ring, the lock tongue extrudes the lock ring, the spring D, the spring E and the seal body move downwards, so as to achieve the seal effect. After one stamping is finished, the springs A, B, C, D and E rebound, the piston moves upwards, negative pressure is formed in the lower oil chamber, oil flows back into the lower oil chamber from the chamber a, the oil way C and the oil way E in sequence, and negative pressure is formed in the chamber a; the piston moves upwards, the upper oil chamber compresses, oil is pressed to the chamber B from the upper oil chamber, the oil path A, the oil path B and the chamber B in sequence, the oil pushes the rotor to rotate anticlockwise, when the pressures in the oil chamber, the chamber a and the chamber B are balanced, the rotor stops rotating, the lock tongue returns to the position in the initial state, and the two-position three-way valve returns to the initial state. When the stamping is needed again, after the external authorization is obtained, the process is repeated.

The application has the beneficial effects that:

1. the application uses the change of the control oil way of the two-position three-way valve to rotate the lock tongue, so that the seal body can be ejected after external authorization, and the seal body is protected from being used at will.

2. According to the application, the compression and rebound of the spring are utilized, so that the condition that the seal needs to be subjected to external authorization every time after one-time authorization is avoided, and the use safety of the seal is improved.

3. The external control of the safety seal can be controlled by the coded lock and the fingerprint lock, can move anywhere, has certain flexibility and convenience, and has simple structure and lower cost.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present application;

FIG. 2 is a schematic view of the hydraulic rotor, locking tongue, lock ring of the present application pressing against the housing without external authorization;

FIG. 3 is a schematic view showing the state that the hydraulic rotor, the lock tongue and the lock ring of the application press the shell after external authorization;

FIG. 4 is an overall schematic of the present application after pressing the housing without external authorization;

FIG. 5 is an overall schematic of the present application after pressing the housing upon external authorization;

in the figure, an outer casing 1, an inner casing 16, a spring A2, a spring B12, a spring C13, a spring D14, a spring E15, an oil chamber 4, a piston 5, a connecting rod 3, an oil passage A7, an oil passage B8, an oil passage C9, an oil passage D10, an oil passage E11, a two-position three-way valve 20, a hydraulic rotor 6, a lock tongue 18, a lock ring 17, a seal body 19, a rotor casing 61, a rotor 62, a stator 63, a rotating shaft 66, a chamber a 64, and a chamber B65.

Description of the embodiments

The application will be further illustrated with reference to specific examples. It should be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.

Examples

As shown in figure 1, the safety seal provided by the application comprises an outer shell 1, an inner shell 16, a spring A2, a spring B12, a spring C13, a spring D14, a spring E15, an oil chamber 4, a piston 5, a connecting rod 3, an oil path A7, an oil path B8, an oil path C9, an oil path D10, an oil path E11, a two-position three-way valve 20, a hydraulic rotor 6, a lock tongue 18, a lock ring 17 and a nutcracker 19, wherein the spring A2 is connected between the outer shell 1 and the top of the oil chamber 4, the piston 5 is arranged in the oil chamber 4, the piston 5 divides the oil chamber 4 into an upper oil chamber and a lower oil chamber, the oil chamber 4 is sealed, the piston 5 is connected with the outer shell 1 through the connecting rod 3, the oil path A7 is connected with the upper oil chamber and the two-position three-way valve 20, the oil path B12 is connected with the two-position three-way valve 20 and the hydraulic rotor 6, the oil path C9 is connected with the hydraulic rotor 6, the oil path D10 and the oil path E11, the oil path D10 is connected with the two-position three-way valve 20, the oil path C9 and the oil path E11, the oil path E11 is connected with the lower oil chamber, the oil path C9 and the oil path D10, the lock tongue 18 is connected with the hydraulic rotor 6 through the rotating shaft 66, the spring B12 and the spring C13 are connected between the top of the oil chamber and the inner shell, the spring D14 and the spring E15 are connected between the lock ring 17 and the inner shell 16, the lock ring 17 is connected with the seal body 19, the two-position three-way valve 20 is controlled by external authorization, the hydraulic rotor 6 comprises a rotor shell 61, a rotor 62, a stator 63, a rotating shaft 66, a cavity a 64 and a cavity B65, the hydraulic rotor 6 is divided into two spaces of the cavity a 64 and the cavity B65 by the rotor 62 and the stator 63, the cavity a 64 and the cavity B65 are filled with oil, the oil path B8 is connected with the cavity B65, the oil way C9 is connected with the chamber a 64, the rotor 62 is connected with the rotating shaft 66, the lock tongue 18 is connected with the rotating shaft 66, the rotor 62 rotates to drive the lock tongue 18 to rotate, the lock ring 17 is hollowed out, the hollowed-out shape corresponds to the shape of the lock tongue 18, the external authorization control of the two-position three-way valve 20 can be controlled by the coded lock, the elastic coefficient of the spring A2 is KA, the elastic coefficient of the spring B12 is KB, the elastic coefficient of the spring C13 is KC, wherein KA < (KB+KC), and the spring A2, the spring B12, the spring C13, the spring D14 and the spring E15 are pressure springs. The oil is incompressible in nature.

In the initial state of the safety seal, the two-position three-way valve 20 is communicated with the oil way A7 and the oil way D10, the lock tongue 18 corresponds to the hollowed-out space of the lock ring 17, and as shown in figure 2, the oil chamber 4, the oil way A7, the oil way B8, the oil way C9, the oil way D10, the two-position three-way valve 20, the chamber a 64 and the chamber B65 of the hydraulic rotor 6 are filled with oil.

When the safety seal is not authorized externally, the two-position three-way valve 20 is communicated with the oil way A7 and the oil way D14, when the shell 1 of the safety seal is pressed, the spring A7 is compressed first, the piston 5 moves downwards, oil in the lower oil chamber flows back to the upper oil chamber sequentially along the oil way E11 and the oil way D10, the oil way A7 continuously presses the shell 1, the spring B12 and the spring C13 are compressed, the oil chamber 4, the oil way A7, the oil way B8, the oil way C9, the oil way D10, the oil way E11, the two-position three-way valve 20, the hydraulic rotor 6 and the lock tongue 18 are driven to move downwards, the lock tongue 18 enters into a hollowed-out space in the lock ring 17, the lock tongue 18 can not drive the lock ring 17 and the seal body 19 to move downwards, and the safety seal can not be stamped out, as shown in fig. 4.

When the safety seal is authorized externally, the two-position three-way valve 20 is connected with the oil way A7 and the oil way B8, when the shell 1 of the safety seal is pressed, the spring A2 is compressed firstly, the piston 5 moves downwards, oil in the lower oil chamber sequentially runs along the oil way E11, the oil way C9 enters the chamber a 64, the pressure in the chamber a 64 rises to drive the rotor 62 to rotate clockwise, the rotor 62 drives the lock tongue 18 to rotate, oil in the chamber B65 is extruded to sequentially flow through the oil way B8 and the oil way A7 to return to the upper oil chamber, when the rotor 62 rotates to the pipe orifice of the oil way B8, the oil way B8 is blocked, the rotor 62 is not rotated any more, the lock tongue 18 rotates to a position which does not correspond to the hollowed-out space in the lock ring 17, as shown in fig. 3, the shell 1 is continuously pressed, the spring B8 and the spring C9 are compressed, the oil chamber 4, the oil way A7, the oil way B8, the oil way C9, the oil way D10, the oil way E11, the two-position three-way valve 20, the hydraulic rotor 6 and the lock tongue 18 cannot enter the hollowed-out space in the lock ring 17, the lock ring 18 is extruded, the lock ring 17, the spring D14, the spring E15 and the lock ring 19 move downwards, and the seal effect is achieved as shown in fig. 5. After one stamping is completed, the springs A2, B12, C13, D14 and E11 rebound, the piston 5 moves upwards, negative pressure is formed in the lower oil chamber, oil flows back into the lower oil chamber from the chamber a 64, the oil path C9 and the oil path E11 in sequence, and negative pressure is formed in the chamber a 64; the piston moves upwards, the upper oil chamber compresses, oil is pressed to the chamber B65 from the upper oil chamber, the oil path A7, the oil path B8 and the oil pushes the rotor to rotate anticlockwise, when the pressure in the oil chamber 4, the chamber a 64 and the chamber B65 is balanced, the rotor shell 61 stops rotating, the lock tongue 18 returns to the position when in the initial state, and the two-position three-way valve 20 returns to the initial state. When the stamping is needed again, after the external authorization is obtained, the process is repeated.

Claims

1. The safety seal is characterized by comprising an outer shell, an inner shell, a spring A, a spring B, a spring C, a spring D, a spring E, an oil chamber, a piston, a connecting rod, an oil path A, an oil path B, an oil path C, an oil path D, an oil path E, a two-position three-way valve, a hydraulic rotor, a lock tongue, a lock ring and a nutshell, wherein the spring A is connected between the top of the outer shell and the top of the oil chamber; the external authorization control of the two-position three-way valve can be controlled by a coded lock or a fingerprint lock; the elastic coefficient of the spring A is KA, the elastic coefficient of the spring B is KB, the elastic coefficient of the spring C is KC, and KA < (KB+KC).

2. The seal of claim 1 wherein the springs a, B, C, D, E are compression springs.

3. The security seal of claim 1, wherein said oil is incompressible in nature.