CN111429615A

CN111429615A - Lock sealing device

Info

Publication number: CN111429615A
Application number: CN201811578151.XA
Authority: CN
Inventors: 夏敬懿
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-20
Filing date: 2018-12-20
Publication date: 2020-07-17

Abstract

The invention discloses a locking device which comprises a radio frequency antenna plate, a radio frequency IC chip, a barb conducting piece, a first lock body, a second lock body and a plug pin body, wherein a first circuit is arranged in the first lock body, a second circuit is arranged in the plug pin body, when the second lock body is clamped and connected with the first lock body, a plug pin section is inserted into the lock body to enable the locking device to form a locking state, a conductive contact on the barb of at least one barb conducting piece and a conducting connecting end of the conductive contact are electrically connected between the first circuit and the second circuit, so that the first circuit and the second circuit form a complete radio frequency circuit, and the radio frequency IC chip and the radio frequency antenna plate are electrically connected in the radio frequency circuit, so that the radio frequency IC chip can be read by external reading equipment matched with the radio frequency IC chip. The invention connects the radio frequency circuit through the barb conducting piece, so that the radio frequency IC chip in the radio frequency IC chip is read by the reading and writing equipment matched with the radio frequency IC chip, and further the detection of whether the locking device is in a locking state is realized.

Description

Lock sealing device

Technical Field

The invention relates to the technical field of locks, in particular to a locking device capable of sensing a locking state.

Background

With the development of scientific technology, the RFID technology has been widely applied, for example, to a locking device, when the existing bag, box, cabinet, etc. is required to be locked with confidential articles and cash, an upper padlock, an electronic coded lock, etc. are usually adopted. In addition, the radio frequency signal can not be received and transmitted, the lock sealing state of the lock can not be remotely checked, and only the padlock or the intelligent lock can be checked whether to be in the lock sealing state through macroscopic observation or manual inspection, so that the operation is troublesome. Therefore, batch bags, boxes, cabinets and the like cannot be simultaneously tested and sealed, the time for one-by-one test is long, and the operation cost is increased. Therefore, a lock seal device for checking the lock seal state by using a batch wireless detection method is urgently needed.

Disclosure of Invention

The invention mainly aims to provide a locking device, which aims to verify whether the locking device is in a locking state or not by reading a radio frequency IC chip.

In order to achieve the above object, the present invention provides a locking device, which includes a radio frequency antenna plate, a radio frequency IC chip, a barb conducting member, a first lock body, a second lock body, and a latch body, wherein the radio frequency antenna plate includes a radio frequency antenna; the barb conducting piece is provided with a barb at one end and a conducting connecting end at the other end, a conducting contact is arranged on the surface of the barb, and the conducting contact is electrically connected with the conducting connecting end through the barb conducting piece body; the first lock body comprises a first shell, a first limiting structure is convexly arranged at the front end of the first shell, and a first circuit is arranged in the first lock body; the second lock body comprises a second shell, a second limiting structure is convexly arranged at the front end of the second shell, and the first limiting structure and the second limiting structure can be detachably clamped and connected, so that the second lock body and the first lock body are fixed in relative position or separated; the bolt body comprises a bolt base and a bolt section, the bolt section is convexly arranged on the surface of the bolt base, and a second circuit is arranged in the bolt body;

after the second lock body is clamped and connected with the first lock body, the bolt section is inserted into the first limiting structure and the second limiting structure to enable the locking device to form a locking state, at least one conductive contact on the barb of the barb conducting piece and the conducting connecting end of the conductive contact are electrically connected between the first circuit and the second circuit, the first circuit and the second circuit form a complete radio frequency circuit, the radio frequency IC chip and the radio frequency antenna are electrically connected to the radio frequency circuit, the radio frequency IC chip can be read by external reading equipment matched with the radio frequency IC chip, and the bolt base is located between the first shell and the second shell.

Preferably, one surface of the barb, which is far away from the hook clamping groove, is configured into a stress inclined surface, each barb conducting piece has an elastic function, when the stress inclined surface is subjected to oblique acting force, the barb conducting piece can be bounced, and when the oblique acting force is removed, the barb conducting piece bounces back towards the original position;

the bolt section is provided with at least one backstop structure matched with the barb, and in the process of reversely withdrawing the bolt body from the first lock body, the surface of the at least one barb with the hook clamping groove is gradually close to the backstop structure to be abutted against each other, so that the bolt body is prevented from continuously moving backwards;

the locking device comprises a first barb conducting piece and a second barb conducting piece, and two conducting connection ends of the first barb conducting piece and the second barb conducting piece are electrically connected to the radio frequency circuit.

Preferably, the first barb switch-on piece and the second barb switch-on piece are both elastically connected to the plug pin section, and two switch-on connection ends thereof are respectively connected in series to the second circuit, and when the locking device forms a locking state, the conductive contacts on the two barbs of the first barb switch-on piece and the second barb switch-on piece are respectively electrically connected to the first circuit, and are connected in series to the first circuit.

Preferably, the first limiting structure and the second limiting structure are provided with jacks matched and connected with the plug pin sections, at least two conductive parts are paved on the hole walls of the jacks, the length of each conductive part is a, 0mm < a ≤ 200mm, a first conductive part and a second conductive part are arranged in the jacks, and the first conductive part and the second conductive part are respectively connected in series with the first circuit to form electric connection;

when the locking and sealing device forms a locking and sealing state, the conductive contacts on the two barbs of the first barb conducting piece and the second barb conducting piece are respectively and electrically connected with the first conductive part and the second conductive part.

Preferably, at least one sliding groove is concavely arranged on the hole wall of the insertion hole, each sliding groove accommodates a barb of at least one barb conducting piece, at least one limiting groove is concavely arranged on the bottom wall of at least one sliding groove, and at least one conducting part is paved in one limiting groove.

Preferably, the first barb switch-on piece and the second barb switch-on piece are elastically connected to the first limiting structure, and two switch-on connection ends of the first barb switch-on piece and the second barb switch-on piece are respectively connected in series to the first circuit.

Preferably, at least two conductive parts are laid on the surface of the plug pin section, the length size of each conductive part is a, the a is more than 0mm and less than or equal to 200mm, a first conductive part and a second conductive part are arranged in the conductive parts, and the first conductive part and the second conductive part are respectively connected in series with the second circuit to form electric connection;

when the locking and sealing device forms a locking and sealing state, the conductive contacts on the two barbs of the first barb conducting piece and the second barb conducting piece are respectively electrically connected with the first conductive part and the second conductive part;

the surface of the bolt section is concavely provided with at least one sliding groove, each sliding groove can accommodate a barb of a barb conducting piece, the bottom wall of at least one sliding groove is concavely provided with at least one limiting groove, the conducting part is positioned in the limiting groove, the surface of one side wall of each limiting groove and the orthographic projection of the surface of the side wall are overlapped or form an acute angle with each other on a horizontal plane to form a backstop structure, and the surface of the side wall is supported by acting force in the horizontal direction so as to prevent the barb from continuously moving in the reverse direction.

Preferably, at least one of the sliding grooves is arranged along the axial direction, and/or at least one of the sliding grooves is arranged along the circumferential direction.

Preferably, the radio frequency IC chip and the radio frequency antenna are electrically connected to the first circuit;

or the radio frequency IC chip and the radio frequency antenna are electrically connected to the second circuit;

or the radio frequency IC chip is electrically connected with the first circuit, and the radio frequency antenna is electrically connected with the second circuit;

or the radio frequency IC chip is electrically connected with the second circuit, and the radio frequency antenna is electrically connected with the first circuit.

Preferably, the plug pin section is substantially cylindrical in shape, or sheet-like, or plate-like, or irregularly shaped.

The first circuit and the second circuit are communicated through the barb conducting piece, so that the radio frequency IC chip in the first circuit is read by the reading and writing equipment matched with the radio frequency IC chip, and whether the locking device is in a locking state or not is further detected. When the second lock body is clamped and connected with the first lock body, the bolt section is inserted into the first limiting structure and the second limiting structure to enable the locking device to form a locking state, and at least one conductive contact on the barb of the barb conducting piece and the conducting connection end of the conductive contact are electrically connected between the first circuit and the second circuit, so that the first circuit and the second circuit form a complete radio frequency circuit, the radio frequency IC chip can be read by external reading equipment matched with the radio frequency IC chip, and the bolt base is located between the first shell and the second shell.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of a lock seal device according to the present invention in a locked state;

FIG. 2 is a schematic view of the latch body of the seal of the present invention;

FIG. 3 is a schematic circuit diagram of the locking device of the present invention in a locked state;

fig. 4 is a schematic structural view of an embodiment of the barb leading-through member of the locking and sealing device of the present invention installed on the connecting shaft;

FIG. 5 is an exploded view of the barb pass-through component of the locking device of the present invention;

fig. 6 is a schematic structural view of another embodiment of the barb leading-through member of the locking and sealing device of the present invention, which is installed on the connecting shaft;

FIG. 7 is another schematic circuit diagram of the locking device of the present invention in a locked state;

FIG. 8 is a schematic view of a configuration of the visible insertion hole of the locking device of the present invention with the first lock body and the second lock body locked together;

FIG. 9 is a schematic circuit diagram of the locking device of the present invention having two first barb pass-through devices connected in parallel and in a locked state;

fig. 10 is a schematic structural diagram of an rf antenna of the sealing device of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be understood, however, that elements, structures and features of one embodiment may be combined in other embodiments without further recitation.

It should be noted that all the directional indications (based on the upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative positional relationship between the components, the movement situation, etc. in a specific posture (based on the figure), and when the specific posture is changed, the directional indication is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention. In the present invention, the same structural components may be named differently in the embodiments, and may be the same member as long as the features and the functions are the same.

The invention provides a lock sealing device, wherein a first lock body 41 and a circuit in a plug pin body are electrically connected through a barb conducting piece, and the lock sealing device specifically comprises the following components:

referring to fig. 1 to fig. 3, the locking device 100 includes: the radio frequency antenna comprises a radio frequency antenna plate, a radio frequency IC chip 2, a barb conducting piece, a first lock body 41, a second lock body 42 and a bolt body 43, wherein a radio frequency antenna 1 is laid on the radio frequency antenna plate; referring to fig. 4 and 5, one end of the barb conducting piece 3 has a barb 30, and the other end has a conducting connection end 35, the surface of the barb 30 is provided with a conductive contact, and the conductive contact is electrically connected to the conducting connection end 35 through the barb conducting piece body;

the first lock body 41 includes a first housing, a first limiting structure (not shown) is disposed at the front end of the first housing in a protruding manner, and a first circuit is disposed in the first lock body 41; the second lock body 42 includes a second housing, a second limiting structure (not shown) is convexly disposed at the front end of the second housing, and the first limiting structure and the second limiting structure can be detachably engaged, so that the second lock body 42 and the first lock body 41 are fixed or separated relative to each other; the plug pin body 43 comprises a plug pin base 44 and a plug pin section 45, the plug pin section 45 is convexly arranged on the surface of the plug pin base 44, and a second circuit is arranged in the plug pin body 43;

referring to fig. 3 again, after the second lock body 42 is fastened to the first lock body 41, the plug pin section 45 is inserted into the first and second limiting structures to make the lock sealing device 100 form a lock sealing state, and the conductive contact on the barb 30 of the at least one barb conducting piece 3 and the conducting connection end 35 thereof are electrically connected between the first and second circuits, so that the first and second circuits form a complete rf circuit, the rf IC chip 2 and the rf antenna are electrically connected to the rf circuit, so that the rf IC chip 2 can be read by an external reading device matched with the rf IC chip 2, and the plug pin base 44 is located between the first and second housings.

Radio Frequency (RF) is an abbreviation for radio frequency, which refers to an electromagnetic frequency that can radiate into space, ranging from 300KHz to 300 GHz. The short term Radio Frequency (RF) is radio frequency current, which is a short term for high frequency Alternating Current (AC) variable electromagnetic wave. Alternating current that changes less than 1000 times per second is called low frequency current, and alternating current that changes more than 10000 times per second is called high frequency current, and radio frequency is such a high frequency current. High frequency (greater than 10K); the radio frequency (300K-300G) is a higher frequency band of high frequency; the microwave band (300M-300G) is again the higher frequency band of radio frequencies. In the theory of electronics, current flows through a conductor, and a magnetic field is formed around the conductor; an alternating current passes through a conductor, around which an alternating electromagnetic field, called an electromagnetic wave, is formed. When the frequency of the electromagnetic waves is lower than 100kHz, the electromagnetic waves can be absorbed by the earth surface and cannot form effective transmission, but when the frequency of the electromagnetic waves is higher than 100kHz, the electromagnetic waves can be transmitted in the air and reflected by an ionosphere at the outer edge of the atmosphere to form long-distance transmission capability, and the high-frequency electromagnetic waves with the long-distance transmission capability are called radio frequency; radio frequency technology is widely used in the field of wireless communications.

The locking device adopts the RFID radio frequency technology, the RFID radio frequency technology comprises an active RFID radio frequency technology and a passive RFID radio frequency technology, the passive RFID radio frequency technology can be adopted in the embodiment, the electricity is saved, and the passive RFID radio frequency technology is adopted for preventing fire particularly for some places where electricity is strictly controlled, such as bank storage, warehouse and the like. Of course, in some embodiments, active RFID radio frequency technology may also be used, which can increase signal transmission distance, etc. In the present invention, the rf IC chip or the circuit board rf IC chip electrically connected to the rf antenna circuit are matched with each other, and the following description is omitted.

In this embodiment, the plug pin body 43 is connected with the first lock body 41 and the second lock body 42 in a matching manner, so that the locking device is in a locking state, the plug pin body 43 is separated from the first lock body 41 and the second lock body 42, so that the locking device is in an unlocking state, because the barb conducting piece 3 has an elastic function, the barb 30 of the barb conducting piece 3 is in contact with or disconnected from at least a second circuit access end in the plug pin body 43, so that a radio frequency circuit or other circuits are switched on and off, and the other circuits can be radio frequency circuits or non-radio frequency circuits; or the barb 30 of the barb conducting piece 3 is contacted with or disconnected from the first circuit access end through the first limiting structure to realize the conduction and the disconnection of the radio frequency circuit. Referring to fig. 4 and 6, the barb leading-through member 3 has an elastic function, because one end of the barb leading-through member 3, which is used for being connected with an external connecting element, is connected with the mounting member through an elastic structure, which may be a spring, such as a compression spring 8. It can be understood that the barb leading-through 3 may have an elastic function, such as a spring sheet. In the process that the locking device forms the locking state, one end of the plug pin section 45 slides forward to the position where the second circuit in the plug pin section 45 is electrically connected with the first circuit along and presses the stressed inclined surface 31 of the at least one barb conducting piece 3 or the other end of the barb conducting piece 3, or pushes the plug pin section 45 to drive the barb conducting piece 3 to insert into the first limiting structure and the second limiting structure, and the barb conducting piece 3 is pressed by the first limiting structure and the second limiting structure to be bounced. In the process, the barb conducting piece 3 is bounced under the oblique acting force applied by the plug pin section 45, so that the barb conducting piece 3 has elastic potential energy or the elastic potential energy is increased; when bolt section 45 and first limit structure and second limit structure separation, the slant effort is removed and is made the barb to switch on piece 3 and bounce back the normal position under the effect of elastic potential energy or bounce back to holding to block the object of rebounding towards the normal position, if sunken recess appears in bolt section 45 and first limit structure and second limit structure relative slip's position, the barb switches on piece 3 and the gliding one end of this part further to springback, if the recess is the through-hole, this end then can pass through-hole to normal position under the effect of elasticity. The relative movement between the latch segment 45 and the first and second limiting structures may be linear movement or curvilinear movement, such as S-shaped curvilinear movement.

The oblique acting force is a force that acts on the force-receiving inclined surface 31 of the barb leading piece 3 and makes it possible to bounce up from the original position. The bolt section 45 is pushed to drive the barb conducting piece 3 to be inserted into the first limiting structure and the second limiting structure, and the barb conducting piece 3 is pressed by the first limiting structure and the second limiting structure to be bounced; or the plug pin section 45 can slide forwards along the stress inclined plane 31, and after sliding over the stress inclined plane 31, one end or more than one end of the barb conducting piece 3 supports the surface of the plug pin section 45. The front of the insertion end of the plug pin section 45 is also an inclined surface, so that the plug pin body 43 can slide into the insertion space of the locking device conveniently, and the resistance is reduced.

The bolt body 43 is connected with the at least one barb conducting piece 3 in a locking mode at the concave-convex clamping position, the bolt body and the at least one barb conducting piece 3 can be locked at the concave-convex clamping position in a separable mode, the convex part can automatically go deep into the concave part through the elastic function of the barb conducting piece 3, the convex end of the barb conducting piece 3 can extend into the concave end of the bolt section 45 to form the clamping position for locking connection, and the concave end of the barb conducting piece 3 and the convex end of the bolt section 45 can also form the clamping position for locking connection. When the barb switch-on piece 3 electrically connected with the first circuit and the second circuit in the plug pin section 45 are in a switched-on and stable state, the plug pin body 43 is locked in place, and the plug pin section 45 is locked after being clamped by the barb switch-on piece 3. When the barb 30 of the barb conducting piece 3 is connected with the conductive position corresponding to the plug pin section 45, the concave-convex structure of the barb conducting piece 3 is separated from the concave-convex structure of the plug pin section 45, and the radio frequency circuit is switched on. Separable unsmooth block is connected and is guaranteed the barb and switch on the circuit connection and the disconnection in 3 and the bolt section 45, realize the conversion of locking state and unblock state of locking device, facilitate the use, unsmooth block makes the barb switch on 3 and is connected stably with bolt section 45, inject the two relative motion and lock, further guarantee that the lock seals the stable state, also can feel the vibrations when unsmooth block of perception simultaneously, promote the user and feel, the user of being convenient for uses.

Or, at least one barb leads to piece 3 and is located the bolt body 43, promote the bolt body 43 and drive the barb above to lead to piece 3 and first limit structure and the locking connection of the protruding position of block of second limit structure, barb leads to piece 3 and the first limit structure of block structure and the locking of the detachable protruding position of block of second limit structure, it is that the elastic function that barb leads to piece 3 has realizes that protruding part is automatic to go deep into concave part, can be that the protruding one end of barb leads to piece 3 stretches into first limit structure and the sunken one end of second limit structure and forms the locking position and lock the connection, also can be that the sunken one end of barb leads to piece 3 and the protruding one end of first limit structure and second limit structure forms the locking position and lock the connection. When the barb switch-on piece 3 electrically connected with the second circuit is in a switched-on and stable state with the first circuit through the first limiting structure and the second limiting structure, the latch body 43 is locked in place, and the first limiting structure and the second limiting structure are locked after being clamped by the barb switch-on piece 3. When the barb 30 of the barb switch-on piece 3 is connected with the separable concave-convex clamping at the position corresponding to the first limit structure and the second limit structure, the radio frequency circuit is switched on or switched off, namely, the barb 30 of the barb switch-on piece 3 is disconnected with the conductive position corresponding to the first limit structure and the second limit structure, namely, the concave-convex structure at the clamping position is separated, the radio frequency circuit is switched off, when the barb 30 of the barb switch-on piece 3 is connected with the conductive position corresponding to the barb switch-on piece 3 and the first limit structure and the second limit structure, namely, the concave-convex structure at the clamping position is connected, and the radio frequency circuit is switched on. The separable concave-convex clamping connection ensures that the barb conducting piece 3 is connected with and disconnected from a circuit in the first lock body 41, and the conversion of the locking state and the unlocking state of the locking device is realized.

Wherein, the barb switches on 3 and plays electrically conductive effect and connecting circuit's effect simultaneously, and the barb switches on 3 and can carry out the transmission of signal of telecommunication when reading radio frequency IC chip 2 simultaneously, and the barb switches on 3 in addition and has elastic function to bolt section 45 or support to holding to first limit structure and second limit structure and make the bolt body 43 be connected closely with the lock body, and then realizes the locking state of locking device.

In the invention, at least one barb conducting piece 3 is adopted to control the connection between different circuits, so that the radio frequency antenna 1 and the radio frequency IC chip 2 form multiple combined conduction, and the functions of different circuits are realized.

The structure of the locking device is simplified.

In the technical scheme of the invention, one end of a plug pin body 43 is inserted into a first limit structure and a second limit structure, so that the stress inclined plane 31 of at least one barb conducting piece 3 is pressed, the plug pin body 43 slides forwards until a radio frequency circuit is in a conducting state, the radio frequency IC chip 2 is read by external reading equipment matched with the radio frequency IC chip through wireless transmission, the locking device is known to be in a locking state, and when the external reading equipment cannot read the radio frequency IC chip 2, the locking device can be judged not to be in the locking state. Whether the bag, the box, the cabinet and the like provided with the locking device are provided with confidential objects can be judged by detecting whether the locking device is in the locking state, the locking state can be detected by adopting a batch wireless detection method, namely, the sealing can be simultaneously detected, the batch checking is convenient, the operation is simple, and the application is wide.

It can be understood that the plug 43 further includes a third plug circuit, and when the locking device is in the locked state or the unlocked state, the third plug circuit is conducted with the circuit in the first lock 41 or the second lock 42 through at least one barb conducting piece 3, for example, when the plug 43 slides to a preset distance, one end of the barb conducting piece 3 butts against or contacts the access end of the third plug circuit, so that the third plug circuit forms a closed loop, and the preset distance may be a position in the locked state, or may be another position. The number of circuits in the plug 43 may be one, two, or more than two, and two circuits may be simultaneously turned on, or one or more than two circuits may be simultaneously turned on. If the plug body 43 further includes a plug body fourth circuit and a plug body fifth circuit, the invention is not limited to one, and the number and the types of the lock seal label circuits, the conducting time and the conducting position are designed according to the use requirement.

In the invention, the circuit is a conductive loop consisting of a metal wire and electric and electronic components. When the circuit is connected, the circuit can work by generating current, the circuit can work by an external power supply, and the circuit can work by generating current by an RFID technology. Different circuit functions can be realized according to different electronic elements communicated by the circuit.

Electrically connecting means that the segmented circuits are directly connected through a mechanical structure so as to communicate among the circuits. The mechanical structure may be a metal wire, a conductive sheet, a conductive block, a conductive plate, or the like. The access end of the circuit is an end capable of being communicated with the circuit, the access end is attached to a physical mechanical part, the mechanical part can be a conducting strip, a conducting block or a conducting plate, the conducting strip, the conducting block and the exposed part of the conducting plate form a conducting region (also called a conducting pool), the conducting region is internally provided with a plurality of conducting contacts, any conducting contact connected with the conducting region can be communicated with the corresponding circuit, and when current exists in the circuit, the circuit can work correspondingly. In the invention, the conduction of the radio frequency antenna circuit and the circuit in the plug pin body 43 is realized through the barb conducting piece 3.

In this embodiment, the first circuit and the second circuit include other electronic components to form a radio frequency antenna circuit, and the electronic components include resistors, capacitors, amplifiers, and the like, which are not limited herein, as long as the corresponding functions are achieved. The radio frequency IC chip is internally integrated with product information such as the type, the quantity, the specification and the like of the product to be locked and sealed and other related information, such as geographical position information.

Referring to fig. 4 to 6 again, one side of the barb 30 departing from the hook groove 32 is configured as a stress inclined plane 31, each barb conducting member 3 has an elastic function, when the stress inclined plane 31 is subjected to an oblique acting force, the barb conducting member 3 can be bounced, and when the oblique acting force is removed, the barb conducting member 3 rebounds towards the original position;

the bolt section 45 is provided with at least one retaining structure matched with the barb 30, and in the process that the bolt body 43 is reversely withdrawn from the first lock body 41, at least one side of the barb 30 with the hook groove 32 is gradually close to one retaining structure to be mutually abutted, so that the bolt body 43 is prevented from continuously moving backwards;

further, the seal locking device 100 includes a first barb conducting piece 301 and a second barb conducting piece 302, and two conducting connection terminals 35 of the first barb conducting piece 301 and the second barb conducting piece 302 are electrically connected to the radio frequency circuit. The shape of the socket is matched with the shape of part of the plug pin section 45, and the circumferential cross section of the socket can be in a shape of a long strip, a circle, a semicircle, a square, a polygon or other regular and irregular shapes.

In this embodiment, please refer to fig. 6 in detail, the force-bearing inclined plane 31 of the barb conducting piece 3 is disposed away from the barb conducting piece body, and a surface away from the force-bearing inclined plane 31 and the barb conducting piece body adjacent thereto form a hook-engaging groove 32; or please refer to fig. 4 in specific combination, the force-bearing inclined plane 31 of the barb conducting part 3 is disposed toward the barb conducting part body, and the surface deviating from the force-bearing inclined plane 31 is recessed to form the hook-engaging groove 32.

Referring to fig. 3 again, the first barb conducting piece 301 and the second barb conducting piece 302 are both elastically connected to the plug section 45, and the two conducting connection ends 35 thereof are connected in series to the second circuit, when the sealing device 100 is in the sealing state, the conductive contacts on the two barbs of the first barb conducting piece 301 and the second barb conducting piece 302 are respectively electrically connected to the first circuit and are connected in series to the first circuit.

Furthermore, the first limit structure and the second limit structure are provided with jacks matched and connected with the plug pin section 45, at least two conductive parts are paved on the hole walls of the jacks, the length dimension of the conductive parts is a, a is more than 0mm and less than or equal to 200mm, a first conductive part 521 and a second conductive part 522 are arranged in the jacks, and the first conductive part 521 and the second conductive part 522 are respectively connected in series with the first circuit to form electric connection;

when the sealing device 100 is in a sealed state, the conductive contacts on the two barbs 30 of the first barb conductive part 301 and the second barb conductive part 302 are electrically connected to the first conductive part 521 and the second conductive part 522, respectively.

The conductive part is electrically conductive and is used for being electrically connected with the barb conductive part 3 on the plug pin body 43, the conductive part occupies a certain surface area on the hole wall of the jack, and the surface of the conductive part is preferably a plane or a curved surface and can be designed according to the use requirement. The conductive part has a certain length, so that the circuit is still in a conducting state to transmit different signals in the process of inserting or withdrawing the plug body 43 into or from the lock body 4 to slide. And simultaneously, the control that all conductive parts are in a conductive state is facilitated. It should be noted that the conductive parts connected to different access ends of different circuits are different conductive parts, the surface of the exposed outer surface of the conductive part is a conductive contact surface (not labeled), and the conductive contact of the conductive part is in contact with the barb conductive part 3 to realize connection and communication of the two circuits. The length dimension of the conductive part is 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 150mm, 160mm, 190mm, or the like.

Furthermore, at least one sliding groove is concavely arranged on the hole wall of the jack, each sliding groove can accommodate the barb of at least one barb conducting piece 3, at least one limiting groove is concavely arranged on the bottom wall of at least one sliding groove, and at least one conducting part is paved in one limiting groove. For example, two conductive parts, or three conductive parts, or more than three conductive parts are laid on the inner wall of one sliding groove.

In the present invention, the hole wall of the insertion hole interacts with the two stressed inclined surfaces 31 of the first barb conducting piece 301 and the second barb conducting piece 302, so that the first barb conducting piece 301 and the second barb conducting piece 302 bounce, and when the pin body 43 slides forward to the sealing position, the two barbs 30 of the first barb conducting piece 301 and the second barb conducting piece 302 bounce from the bottom wall of the sliding groove into the bottom wall of the limiting groove to be connected with the conductive portion of the bottom wall thereof to form the sealing state.

A first conductive part 521 and/or a second conductive part 522 are/is laid on the inner wall of one sliding groove, and the first barb conducting part 301 and the second barb conducting part 302 respectively contact with the first conductive part 521 and the second conductive part 522 to realize the conduction of the first circuit and the second circuit so as to realize the electrical connection with the radio frequency antenna 1.

The sliding groove has a limiting effect on the barb conducting piece 3, the sliding groove enables the barb conducting piece 3 to slide along the sliding groove, namely, a sliding path of the barb conducting piece 3 on the hole wall of the jack is limited, the accuracy and the stability of the barb conducting piece 3 electrically connected with the conductive part are improved, meanwhile, the barb conducting piece 3 is prevented from sliding relative to the first lock body 41 and the second lock body 42 due to external impact or vibration of the locking device, the barb conducting piece 3 is separated from the conductive part to influence the use effect, the relative position stability of the barb conducting piece 3 and the first lock body 41 and the second lock body 42 is enhanced, the locking state of the plug pin 43 in place can be kept, the use performance is improved, and the service life of the locking device is prolonged.

At least two convex ribs are arranged on the hole wall of each jack at intervals, and a sliding groove is formed between each two adjacent convex ribs and the hole wall of each jack between the adjacent convex ribs. At least one conductive part is arranged on the bottom wall or the side wall of the sliding groove, the length direction of the conductive part is arranged in parallel with the length direction of the convex rib, or the width direction of the conductive part is arranged in parallel with the length direction of the convex rib, the sliding groove can transversely accommodate a barb, or the length direction of the conductive part is arranged between the length direction and the width direction of the convex rib. The convex rib and the hole wall of the jack can be integrally formed or arranged in a split mode, and the convex rib arranged in the split mode is connected to the hole wall of the jack in a welding mode, a gluing mode, a clamping mode and the like. When the hole wall of the jack is provided with a plurality of sliding grooves, the plurality of sliding grooves are arranged in parallel, the sliding grooves can be arranged along a straight line or a curve, for example, the groove walls of the sliding grooves form concentric circles, some sliding grooves are not provided with a conductive part, and some sliding grooves are provided with one, two or more conductive parts. In other embodiments, the walls of the socket may be devoid of a sliding groove.

In some embodiments, referring to fig. 7, the first barb conducting element 301 and the second barb conducting element 302 are both elastically connected to the first lock body 41, and the two conducting connection ends 35 thereof are respectively connected in series to the first circuit, when the locking device 100 forms the locking state, the conductive contacts on the two barbs of the first barb conducting element 301 and the second barb conducting element 302 are respectively electrically connected to the second circuit and are connected in series to the second circuit;

at least two conductive parts are laid on the surface of the plug section 45, the length size of the conductive parts is a, a is more than 0mm and less than or equal to 200mm, a first conductive part 521 and a second conductive part 522 are arranged in the conductive parts, and the first conductive part 521 and the second conductive part 522 are respectively connected in series with a second circuit to form electric connection;

when the sealing device 100 forms a sealed state, the conductive contacts on the two barbs of the first barb conductive part 301 and the second barb conductive part 302 are electrically connected with the first conductive part 521 and the second conductive part 522 respectively;

the surface of the bolt section 45 is concavely provided with at least one sliding groove (not marked), each sliding groove can accommodate the barb 30 of one barb conducting piece 3, the bottom wall of at least one sliding groove is concavely provided with at least one limiting groove, the conducting part is positioned in the limiting groove, the surface of one side wall of the limiting groove and the orthographic projection of the surface of the side wall are superposed or an included angle of the surface of the side wall of the limiting groove is arranged in an acute angle to form a backstop structure, and the surface of the side wall is supported by the acting force in the horizontal direction, so that the barb is prevented from continuously moving in the reverse.

Wherein, the bottom wall of the sliding groove is concavely provided with a limit groove, and a conductive part is positioned in the limit groove;

the surface of one side wall of the limiting groove is superposed with the orthographic projection of the surface on the horizontal plane or forms an acute angle with the included angle to form a retaining structure, and the surface of the side wall is supported by the acting force in the horizontal direction, so that the barb is prevented from continuously moving in the reverse direction.

In this embodiment, in the process that the pin section 45 is inserted into the first limiting structure and the second limiting structure, the pin section 45 interacts with the two stressed inclined surfaces 31 of the first barb conducting piece 301 and the second barb conducting piece 302, so that the first barb conducting piece 301 and the second barb conducting piece 302 bounce, and when the pin body 43 slides forward to the sealing position, the two barbs 30 of the first barb conducting piece 301 and the second barb conducting piece 302 bounce into the bottom wall of the limiting groove from the bottom wall of the sliding groove to the conductive part connected with the bottom wall to form the sealing state.

In the invention, a concave-convex clamping position is formed at one end of the limiting groove and the barb conducting piece 3, which is used for being connected with the limiting groove, the inner wall of the limiting groove forms a backstop structure, the bolt body 43 inserted into the first lock body 41 and/or the second lock body 42 is ensured to be reversely drawn out or withdrawn from the first lock body 41 and/or the second lock body 42, unlocking is avoided, meanwhile, the first barb conducting piece and the second barb conducting piece slide into the bottom wall of the limiting groove from the bottom wall of the sliding groove, a user can receive a perception due to vibration, the bolt body 43 is connected with a radio frequency circuit, and the locking device 100 is ensured to be locked.

Further, at least one sliding groove is arranged along the axial direction, and/or at least one sliding groove is arranged along the circumferential direction.

Further, the radio frequency IC chip 2 and the radio frequency antenna are electrically connected to the first circuit;

or the radio frequency IC chip 2 and the radio frequency antenna are electrically connected with the second circuit;

or the radio frequency IC chip 2 is electrically connected with the first circuit, and the radio frequency antenna is electrically connected with the second circuit;

or the radio frequency IC chip 2 is electrically connected with the second circuit, and the radio frequency antenna is electrically connected with the first circuit.

Further, the plug pin section 45 is substantially cylindrical, or plate-like, or irregular in shape.

Referring to fig. 2 and 8 again, the surface of the plug pin section 45 in fig. 2 is provided with a conductive portion, and the first lock body 41 and the second lock body 42 used in cooperation therewith are provided with the barb conducting member 3, and the barb conducting member 3 is not shown in fig. 8.

Further, in order to strengthen the supporting strength and the supporting strength of the barb conducting piece 3, the barb conducting piece 3 is prevented from deforming due to insufficient supporting strength, so that the barb conducting piece 3 is not tightly or separately connected with the hole wall of the jack or the pin body 43, and the locking effect is further influenced. The locking device further comprises another first barb conducting piece 301, the two first barb conducting pieces 301 are connected in parallel to an access end of the first circuit or an access end of the second circuit to increase the compressive strength, and the corresponding hole wall of the jack or the plug body 43 is provided with two first conductive parts 521 connected in parallel, wherein when the locking device is in a locking state, the two first barb conducting pieces 3 are respectively abutted against the two first conductive parts 521, and at least one first barb conducting piece 301 is electrically connected with the corresponding first conductive part 521 to conduct the radio frequency circuit. When the locking device is in the locked state, only one of the two first barb conductive elements 301 needs to be electrically connected to one of the first conductive portions 521 to satisfy the function of connecting the circuit, please refer to fig. 9 in combination, when the locking device is in the locked state, both the two first barb conductive elements 301 are electrically connected to the two first conductive portions 521, and those skilled in the art can know that an access end of the first circuit may be provided with two barb conductive elements 3, or more than two barb conductive elements 3, such as three, four, five, etc. The plug body 43 may be provided with only one first conductive part 521, and one of the two first barb conductive parts 301 may be used for conducting with the first conductive part 521. That is, the first barb leads to piece 301 and also can be used for only increasing the support intensity, do not carry out and be connected with the circuit, if lead to piece 3 with a reinforcing barb that piece 301 set up in parallel with first barb, this reinforcing barb leads to piece 3 and not be connected with the circuit, or two first barb lead to piece 301 and connect same circuit incoming end, the two share the pressure that bears the plug body 43, and then increased the intensity that supports plug body 43, also avoided first barb to lead to piece 301 simultaneously and receive wearing and tearing because of the live time is long.

According to the invention, the first lock body comprises a plastic outer shell and a metal inner shell, a first accommodating groove is formed in the plastic outer shell, a second accommodating groove is formed in the metal inner shell, the metal inner shell is accommodated in the first accommodating groove, a limiting structure matched with the metal inner shell is arranged on the inner wall of the first accommodating groove, an accommodating space is formed between the top wall of the first accommodating groove and the top wall of the second accommodating groove, the radio frequency antenna 1 is arranged in the accommodating space, and the surface, provided with the metal layer, of the circuit board antenna faces the top wall of the second accommodating groove. The plastic outer shell reduces signal interference or no interference to the radio frequency antenna 1 plate, the metal inner shell shields interference to the radio frequency antenna 1 from the outside on one hand, on the other hand, electromagnetic waves emitted by the radio frequency antenna 1 hit the metal inner shell, and the metal inner shell can reflect partial electromagnetic waves, so that the electromagnetic wave strength of the antenna is enhanced, and the capability of the radio frequency antenna 1 for emitting wireless signals is improved. The surface of the radio frequency antenna board laid with the metal layer faces the top wall of the second accommodating groove, and the intensity of the transmitted electromagnetic waves of the radio frequency antenna 1 is further enhanced. Limiting structure plays support and clamping action to the radio frequency antenna board, and the radio frequency antenna board is located accommodation space now to the radio frequency antenna board rocks, and then influences the effect that radio frequency antenna 1 received and launched the electromagnetic wave. The second lock body 42 is connected with the first lock body 41 in a clamping manner, the relative position of the second lock body 42 and the first lock body 41 is firstly fixed to prevent relative movement or separation, and the second lock body 42 and the first lock body 41 are connected into a whole to facilitate further locking. The plug body 43 is inserted into the jack to realize the physical lock seal and the radio frequency circuit conduction of the lock seal device 100.

Wherein, the metal inner shell can prevent effectively that its internal locking device's structure burning from being fired and extend to the metal inner shell outside, avoids arousing the conflagration of the environment that locking device is located, and the metal inner shell has antidetonation and explosion-proof function simultaneously.

Further, the shape of the plug body 43 is a plate shape, or a long strip shape, or a circular shape, or a semicircular shape, or an oval shape, or a rectangular parallelepiped shape.

Referring to fig. 4 and 6 again, the barb leading-through part 3 includes a metal body, the barb 30 is formed at one end of the metal body, the metal body is connected with the mounting part in the lock body by an elastic connection manner, and a connection shaft 34 is formed at the connection position.

In this embodiment, the barb leading-through is made of a conductive material, and the metal body is conductive, preferably copper, and may be made of other metals, such as iron, alloy, gold, silver, aluminum, and their products. Of course, the barb pass-through piece may be made of other conductive materials as long as the corresponding conductive function can be achieved.

In the invention, the barb conducting piece 3 can be elastically connected through elastic pieces such as a pressure spring 8, if one end of the barb conducting piece 3 is provided with an elastic connecting structure which is used for being elastically connected with an external connecting part, the elastic connecting structure also comprises a torsion arm groove used for clamping a torsion arm, one torsion arm of the torsion spring is clamped in the torsion arm groove, the other torsion arm is clamped in the external connecting part, so that one surface of the barb conducting piece 3, which is far away from the torsion arm groove, supports the external connecting part, when the barb conducting piece 3 is pressed, the barb conducting piece 3 is compressed and moves circumferentially around a connecting shaft, when the barb conducting piece 3 is removed with force, the elastic potential energy of the torsion spring is converted into kinetic energy, and the barb conducting piece 3 can rebound to the original position or retreat to the original position to a blocking object.

In the present invention, the number of the barb lead-through 3 is set as required. The number of barb leads 3 may be 3, 4, 5, 6, 7, 8, 9, 10, etc. Two or more barb lead-through 3 are located the installed part, and the installed part can be platelike, also can be other shapes, like cylindricality, square, other regular or irregular shape etc..

Referring to fig. 5 again, the surface of one end of the metal body, which is used for connecting the mounting member, is covered with the plastic shaping layer 33, at least one connecting column 331 is constructed on the plastic shaping layer 33, a connecting hole is penetrated through the connecting column 331, a torsion spring 8 is sleeved outside the connecting column 331, at least one connecting column 331 is sleeved on the connecting shaft 34, the connecting shaft 34 is installed on the mounting member, and the barb conducting member 3 realizes elastic movement through the torsion spring 8.

Specifically, the barb of the barb conducting piece is connected with any angle position of the metal body, and if the barb is located at the position of the metal body, the position of the barb located on the metal body comprises a left side, a right side, an upper portion, a lower portion, a front end, a rear end, a left rear side and a front side and a rear side. The metal body is arranged horizontally or approximately horizontally, and the barb is higher than the metal body; alternatively, the metal body is disposed in a substantially vertical orientation with the barb located at the upper or lower end of the metal body. The metal body has a conducting connection end 35, the conducting connection end 35 is used for being directly connected with a circuit, and the conducting connection end 35 can be convexly arranged or concavely arranged on the metal body. The barb surface is a conductive contact surface, and the conductive contact is electrically connected to the conductive connection terminal 35 through the metal body. Or switch on the structure surface that link 35 and conductive contact electricity are connected and are formed and laid insulating design layer, and conductive contact with switch on link 35 and switch on a body electricity through the barb and be connected, the barb switches on the surface part of a body or all covers the design layer that has the plastics material, promptly the barb switches on 3 including the metallic structure who is used for switching on the circuit, metallic structure surface part or whole cladding plastic layer, metallic structure are wire, or metal strip, or metal block, or sheetmetal, or other irregularly shaped metallic structure. The metal is a conductive metal, and the metal includes silver, copper, aluminum, iron, tungsten, alloy and the like. The conductive connection terminal 35 is made of a conductive material such as metal. The conducting connection end can be formed by plating metal on the surface of the hook part, or can be embedded or convexly arranged on the barb conducting piece body by a metal sheet or a metal block, and the metal is conductive metal.

An antenna is a transducer that converts a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space) or vice versa. A component for transmitting or receiving electromagnetic waves in a radio device. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasure, remote sensing, radio astronomy and the like all use electromagnetic waves to transmit information and work by depending on antennas. In addition, in transferring energy with electromagnetic waves, non-signal energy radiation also requires antennas. The antennas are generally reciprocal in that the same pair of antennas can be used as both transmit and receive antennas. The same antenna is the same as the basic characteristic parameter for transmission or reception. At present, the antenna is more and more widely applied, the anti-interference requirement is more and more strict, and the design types are diversified. Such as a radio frequency antenna used in an RFID electronic tag or label, to be widely used in the field of logistics. It can store data related to merchandise, credit cards, access cards, and vehicle control in RF. The radio frequency antenna circuit is matched with a radio frequency IC chip in the RFID electronic seal, and an RFID reader matched with the radio frequency antenna is used for reading information in the radio frequency IC chip. The RFID electronic seal can also be applied to the locking device, and when the locking device is in a locking state, the radio frequency IC chip can be read. The ideal antenna does not consider the feeding part, but in order to extract signals, the extracted point is called the feeding part, the english is expressed by feedpoint, the field distribution of the antenna is generally influenced by the addition of the feeding part, and the selection of the point is also exquisite.

Specifically, the radio frequency antenna 1 may be a ceramic antenna or a loop antenna, wherein the ceramic antenna is a ceramic housing and has anti-interference, anti-thunder, waterproof and dustproof capabilities. The loop antenna is a structure in which a metal wire is wound into a certain shape, such as a circle, a square, a triangle, and the like, and two ends of a conductor are used as output ends. A multi-turn (e.g., helical or lap wound) wound loop antenna is known as a multi-turn loop antenna. The main forms of the line antenna include dipole antenna, half-wave dipole antenna, cage antenna, monopole antenna, whip antenna, iron tower antenna, spherical antenna, magnetic antenna, V-shaped antenna, diamond antenna, fishbone antenna, yagi antenna, log periodic antenna, antenna array, etc. (non-directional antenna, weak directional antenna, strong directional antenna). Referring to fig. 10, one surface of the rf antenna plate 10 is laid with a metal layer (not shown), and the other surface is laid with an antenna 11, and the thickness of the rf antenna plate 10 is any value between 0.1mm and 100mm, such as 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, and 2.9 mm. On one hand, the metal layer shields the influence of external signals on the circuit board antenna 10, on the other hand, electromagnetic waves emitted by the antenna hit the metal layer, and the metal layer can reflect part of the electromagnetic waves, so that the electromagnetic wave strength of the antenna is enhanced, and the capability of the antenna for emitting wireless signals is improved, namely, the gain is improved. The thickness of the radio frequency antenna plate 10 of any value between 0.1mm and 100mm can ensure that the ultrahigh frequency RFID antenna and the high frequency RFID antenna can read, for example, in a 2.6mm design, the interference between the ultrahigh frequency RFID antenna and the high frequency RFID antenna is small. The radio frequency circuit is connected with an ultrahigh frequency RFID antenna, and when the locking device is in a locking state, the high frequency RFID antenna can work or not work and is controlled according to specific design.

In summary, in the present embodiment, the first circuit and the second circuit are connected through the barb conducting element, so that the rf IC chip 2 located therein is read by the read/write device matched with the first circuit, and further, the detection of whether the locking device 100 is in the locking state is realized.

In the present invention, in the circuit diagram, the circuit is represented by a solid line or a dotted line, and the chip is represented by a block, which does not represent a real structure.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A seal assembly, comprising:

a radio frequency antenna plate comprising a radio frequency antenna;

a radio frequency IC chip;

the barb conducting piece is provided with a barb at one end and a conducting connecting end at the other end, a conducting contact is arranged on the surface of the barb, and the conducting contact is electrically connected with the conducting connecting end through the barb conducting piece body;

the first lock body comprises a first shell, a first limiting structure is convexly arranged at the front end of the first shell, and a first circuit is arranged in the first lock body;

the second lock body comprises a second shell, a second limiting structure is convexly arranged at the front end of the second shell, and the first limiting structure and the second limiting structure can be detachably clamped and connected, so that the second lock body and the first lock body are fixed in relative position or separated; and

the plug pin body comprises a plug pin base and a plug pin section, the plug pin section is convexly arranged on the surface of the plug pin base, and a second circuit is arranged in the plug pin body;

2. The seal of claim 1,

one surface of the barb, which is far away from the hook clamping groove, is constructed into a stress inclined surface, each barb conducting piece has an elastic function, when the stress inclined surface is subjected to oblique acting force, the barb conducting piece can bounce, and when the oblique acting force is removed, the barb conducting piece rebounds towards the original position;

3. The seal of claim 2,

first barb switch-on piece with the second barb switches on the equal elastic connection of piece in the bolt section, and its two switch-on connection ends connect in series in the second circuit, work as when the locking device formed the locking state, first barb switch-on piece with the second barb switches on the electrically conductive contact on two barbs of piece respectively with first circuit electricity is connected, and it is established ties with first circuit.

4. The seal of claim 3,

the first limiting structure and the second limiting structure are provided with jacks matched and connected with the bolt sections, at least two conductive parts are paved on the hole walls of the jacks, the length dimension of each conductive part is a, a is more than 0mm and less than or equal to 200mm, a first conductive part and a second conductive part are arranged in the jacks, and the first conductive part and the second conductive part are respectively connected in series with the first circuit to form electric connection;

5. The seal of claim 4,

at least one sliding groove is concavely arranged on the hole wall of the jack, each sliding groove contains a barb of at least one barb conducting piece, at least one limiting groove is concavely arranged on the bottom wall of at least one sliding groove, and at least one conducting part is paved in one limiting groove.

6. The seal of claim 2,

the first barb switches on the piece and the second barb switches on the equal elastic connection of piece in first limit structure, and its two switch on the link respectively connect in series in first circuit, when locking device forms the locking state, the first barb switches on the piece and the electrically conductive contact on the two barbs of second barb switches on the piece respectively with the second circuit electricity is connected, and it is established ties with the second circuit.

7. The seal of claim 6,

at least two conductive parts are laid on the surface of the plug pin section, the length size of each conductive part is a, a is more than 0mm and less than or equal to 200mm, a first conductive part and a second conductive part are arranged in the conductive parts, and the first conductive part and the second conductive part are respectively connected in series with the second circuit to form electric connection;

8. The seal of claim 5,

at least one sliding groove is arranged along the axial direction, and/or at least one sliding groove is arranged along the circumferential direction.

9. The seal of any one of claims 1 to 8,

the radio frequency IC chip and the radio frequency antenna are electrically connected to the first circuit;

10. The seal of claim 1,

the plug pin section is approximately cylindrical, or sheet-shaped, or plate-shaped, or irregular in shape.