Locking device

Abstract

The present invention discloses a locking device, including a radio frequency antenna plate, a radio frequency IC chip, a barb conductive piece, a first lock body, a second lock body and a disposable lock seal, wherein a first circuit is arranged in the first lock body, and the radio frequency antenna is electrically connected to the first circuit, wherein two conductive connection ends of the first barb conductive piece and the second barb conductive piece are connected in series to the first circuit to form an electrical connection, and the radio frequency IC chip is electrically connected to the circuit of the disposable lock seal and is located between the first conductive part and the second conductive part, and when the disposable lock seal passes through the second lock body and is inserted into the first preset position of the first lock body, the first circuit and the circuit in the disposable lock seal are closed and connected, so that the radio frequency IC chip can be read. The technical solution of the present invention connects the first circuit and the circuit in the disposable lock seal through the barb conductive piece, so that the radio frequency IC chip can be read by an external reading and writing device matched therewith, thereby realizing the detection of whether the locking device is in a locked state.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a locking device capable of sensing a locking state. Background Art

[0002] With the development of science and technology, RFID technology has been widely used, such as in locking devices. When existing bags, bags, boxes, cabinets, etc. contain confidential items and cash and need to be locked, padlocks, smart locks, etc. are usually used. The above-mentioned existing technologies are cumbersome to operate and cannot be managed in batches. They can only be checked by macroscopic observation or manual inspection to see whether the padlock or smart lock is in a locked state, which is not convenient for batch management. Batch use is more troublesome and increases operating costs. For example, padlocks require additional equipment and are cumbersome to operate. Although smart locks do not require keys to open, such as password locks, they cannot be managed in batches and cannot be managed in batches. It is more troublesome to detect whether they are locked in batches. Therefore, there is an urgent need for a locking device that can be used in batches and can detect whether they are locked. Summary of the invention

[0003] The main purpose of the present invention is to provide a locking device, which is intended to verify whether the locking device is in a locked state by reading a radio frequency IC chip.

[0004] To achieve the above-mentioned purpose, the present invention provides a locking device, which includes a radio frequency antenna board, a radio frequency IC chip, a barb conductive piece, a first lock body, a second lock body and a disposable lock seal, the radio frequency antenna board is paved with a radio frequency antenna; the barb conductive piece has a barb at one end and a conductive connection end at the other end, a conductive contact is provided on the surface of the barb, the conductive contact is electrically connected to the conductive connection end through the barb conductive piece body, a side of the barb facing away from the hook groove is configured as a force-bearing inclined surface, the first lock body is installed with the radio frequency antenna board, a first circuit is provided in the first lock body, the radio frequency antenna is electrically connected to the first circuit, the number of the barb conductive pieces is at least two, including a first one located in the first lock body A barbed conductive member and a second barbed conductive member, wherein two conductive connection ends of the first barbed conductive member and the second barbed conductive member are connected in series to the first circuit to form an electrical connection; the second lock body is detachably engaged with the first lock body, at least one conductive part is provided on the surface of the disposable lock seal, and the conductive part is electrically connected to the circuit in the disposable lock seal, including a first conductive part and a second conductive part, the first conductive part and the second conductive part are electrically connected to the circuit in the disposable lock seal, the radio frequency IC chip is electrically connected to the circuit of the disposable lock seal and is located between the first conductive part and the second conductive part, and the length dimension a of the conductive part is any value between 0cm and 200cm;

[0005] Wherein, when the disposable lock seal passes through the second lock body and is inserted into the first preset position of the first lock body, the conductive contacts of the two hooks of the first hook conductive member and the second hook conductive member are electrically connected to the first conductive part and the second conductive part respectively, so that the first circuit and the circuit in the disposable lock seal are closed and connected, so that the radio frequency IC chip and the radio frequency antenna are electrically connected, thereby making the radio frequency IC chip readable;

[0006] Among them, the disposable lock seal is provided with at least one stop structure cooperating with the barb. In the process of the disposable lock seal being reversely withdrawn from the first lock body, at least one side of the barb having the hook groove gradually approaches and abuts against a stop structure, thereby preventing the disposable lock seal from continuing to move backward.

[0007] Preferably, a verification circuit is arranged inside the second lock body, the disposable lock seal further comprises a third conductive part and a fourth conductive part, the disposable lock seal is further provided with a second circuit and a third circuit, the first conductive part and the third conductive part are connected in series to the second circuit, the second conductive part and the fourth conductive part are connected in series to the third connection circuit, and the radio frequency IC chip is electrically connected to the second connection circuit or the third connection circuit;

[0008] Among them, when the disposable lock seal passes through the second lock body and is inserted into the first preset position of the first lock body, the third conductive part and the fourth conductive part are electrically connected to the verification circuit and connected in series, so that the first circuit, the second circuit, the third circuit and the verification circuit form a complete closed radio frequency circuit.

[0009] Preferably, each barb conductive member has an elastic function, and when the force-bearing inclined surface is subjected to an oblique force, the barb conductive member can bounce up, and when the oblique force is withdrawn, the barb conductive member bounces back to its original position.

[0010] Preferably, at least one sliding groove is recessed on the surface of the disposable lock seal, each sliding groove can accommodate a barb of a barb conductor, the conductive part is laid on the inner wall of the sliding groove, and at least one inner wall of at least one sliding groove is constructed with at least one said stop structure.

[0011] Preferably, a limiting groove is concavely formed on the bottom wall of the sliding groove, and one of the conductive parts is located in one of the limiting grooves;

[0012] The surface of one side wall of the limiting groove coincides with its orthographic projection on the horizontal plane or is set at an acute angle to form the stop structure. The surface of the side wall is supported by the horizontal force, thereby preventing the barb from continuing to move in the opposite direction.

[0013] Preferably, the locking and sealing device also includes a third barb conductive piece and a fourth barb conductive piece, and the two conductive connection ends of the third barb conductive piece and the fourth barb conductive piece are connected in series to the verification circuit. When the disposable lock seal is inserted into the first lock body to the first preset position, the conductive contact surfaces of the third barb conductive piece and the fourth barb conductive piece are electrically connected to the third conductive part and the fourth conductive part respectively.

[0014] Preferably, the lock sealing device further comprises a fifth barb conductive member, the fifth barb conductive member and the first barb conductive member are connected in parallel to the first circuit and are arranged side by side and adjacent to each other, and when the disposable lock seal is inserted into the first preset position of the first lock body, the barb of the fifth barb conductive member is located in a sliding groove adjacent to the first barb conductive member;

[0015] And / or, the locking and sealing device also includes a sixth barb conductor, which is connected to the first circuit in parallel with the second barb conductor and is arranged side by side. When the disposable lock seal is inserted into the first preset position of the first lock body, the barb of the sixth barb conductor is located in a sliding groove adjacent to the second barb conductor.

[0016] Preferably, the first lock body has a first insertion hole extending therethrough, and the barb portion of the barb conductive member located in the first lock body or the barb portion thereof is located entirely in the first insertion hole; the second lock body has a second insertion hole extending therethrough, and the barb portion of the barb conductive member located in the second lock body or the barb portion thereof is located entirely in the second insertion hole;

[0017] The maximum length of one end of the disposable lock seal forming the limiting wing along the width direction of the sliding groove is greater than the maximum size of the first plug hole and the maximum size of the second plug hole;

[0018] When the second lock body and the first lock body are engaged and connected, the first insertion hole is horizontally connected to the second insertion hole. When the disposable lock seal passes through the second lock body and is inserted into the first preset position of the first lock body, the end of the disposable lock seal away from the limiting wing passes through the second insertion hole and is inserted into the first insertion hole until the limiting wing abuts or approaches or abuts against the opening periphery of the second insertion hole.

[0019] Preferably, the disposable lock seal is in the shape of a plate, or a long strip, or a circle, or a semicircle, or an ellipse, or a cuboid.

[0020] Preferably, the barb conductive member comprises a metal body, the barb is formed at one end of the metal body, the metal body is connected to the mounting member in the lock body by elastic connection, and a connecting shaft is configured at the connection point.

[0021] Preferably, the metal body is used to connect the mounting piece, and one end surface is covered with a plastic molding layer, and at least one connecting column is constructed on the plastic molding layer. A connecting hole is passed through the inside of the connecting column, and a torsion spring is sleeved on the outside. At least one of the connecting columns is sleeved on the connecting shaft, and the connecting shaft is installed on the mounting piece. The barbed conductive piece realizes elastic movement through the torsion spring.

[0022] Preferably, the disposable lock seal is further provided with a second circuit, the first conductive part and the second conductive part are electrically connected to the second circuit, and the radio frequency IC chip is electrically connected to the second circuit;

[0023] When the disposable lock seal is inserted into the first preset position of the first lock body, the first circuit and the second circuit are closed and connected.

[0024] Preferably, the sealing device further comprises a circuit board, wherein the circuit board is provided with at least one circuit, one of which is named as a first circuit board circuit, and two access ends of the first circuit board circuit are exposed on the surface of the circuit board;

[0025] Among them, when the first barb conductive piece and the second barb conductive piece are not in contact with the disposable lock seal, the two conductive connecting ends of the first barb conductive piece and the second barb conductive piece are respectively in contact with the two access ends of the first circuit of the circuit board to make the first circuit conductive with the first circuit of the circuit board.

[0026] In the technical solution of the present invention, the sealing device connects the RF antenna and the circuit in the disposable lock seal through the barb conductive piece, so that the RF IC chip located therein can be identified and read by an external reading and writing device that matches the RF antenna circuit, thereby realizing the detection of whether the sealing device is in a locked state. When the disposable lock seal passes through the second lock body and is inserted into the first preset position of the first lock body, the conductive contacts on the two barbs of the first barb conductive piece and the second barb conductive piece are electrically connected to the first conductive part and the second conductive part respectively, so that the first circuit and the circuit in the disposable lock seal are closed and connected, so that the RF IC chip and the RF antenna are electrically connected, and the RF IC chip can be read. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the sealing device of the present invention;

[0029] Figure 2 A circuit diagram of the locking device of the present invention in a locked state;

[0030] Figure 3 It is a structural schematic diagram of an embodiment of a locking and sealing device of the present invention in which a plurality of barbed conductive members are connected together;

[0031] Figure 4 It is a schematic diagram of the exploded structure of the barb conductive part of the locking and sealing device of the present invention;

[0032] Figure 5 Another circuit diagram of the locking device of the present invention in a locked state;

[0033] Figure 6 It is a structural schematic diagram of another embodiment of a locking and sealing device of the present invention in which a plurality of barbed conductive members are connected together;

[0034] Figure 7 A circuit diagram of a circuit when the circuit in the circuit board of the locking device of the present invention is turned on and the locking device is in an unlocked or unlocked state;

[0035] Figure 8 A schematic structural diagram of an embodiment of a disposable seal of a sealing device of the present invention;

[0036] Fig. 9 A schematic structural diagram of another embodiment of a disposable seal of the sealing device of the present invention;

[0037] Fig.10 It is a schematic diagram of the exploded structure of the first lock body of the locking and sealing device of the present invention;

[0038] Fig.11 A schematic structural diagram of another embodiment of a disposable seal of the sealing device of the present invention;

[0039] Fig.12 A schematic structural diagram of another embodiment of a disposable seal of the sealing device of the present invention;

[0040] Fig.13 A schematic structural diagram of another embodiment of a disposable seal of the sealing device of the present invention;

[0041] Fig.14 It is a schematic diagram of the exploded structure of a disposable lock seal and a plurality of barb conducting members installed on a mounting member of the lock seal device of the present invention;

[0042] Fig.15 It is a schematic diagram of the three-dimensional structure of an embodiment of the radio frequency antenna of the sealing device of the present invention;

[0043] Fig.16 It is an exploded schematic diagram of an embodiment of the boosting structure of the sealing device of the present invention.

[0044] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. However, it should be understood that without further description, the elements, structures and features in one embodiment can also be combined in other implementations.

[0046] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). When the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention. In the present invention, the same structural component in multiple embodiments may be named differently, but as long as the features and functions are the same, they can be the same component.

[0048] The present invention provides a locking device, which forms a locked state or an unlocked state by cooperating a disposable locking seal and a barb conductive member with a barb, and a radio frequency IC chip 2 is located in the disposable locking seal 5, as follows:

[0049] Please refer to Figures 1 to 3 The sealing device 100 includes a radio frequency antenna board 10, a radio frequency IC chip 2, a hook conductive member 3, a first lock body 41, a second lock body 42 and a disposable seal 5. The radio frequency antenna board is provided with a radio frequency antenna 1. Please refer to Figure 4, the barb conductive member 3 has a barb 30 at one end and a conductive connection end 35 at the other end, a conductive contact is provided on the surface of the barb 30, and the conductive contact is electrically connected to the conductive connection end 35 through the barb conductive member body, and the side of the barb 30 away from the hook groove 32 is configured as a force-bearing inclined surface 31; the first lock body 41 is installed with a radio frequency antenna board, the first lock body 41 is provided with a first circuit, the radio frequency antenna 1 is electrically connected to the first circuit, the number of the barb conductive members 3 is at least two, including a first barb conductive member 301 and a second barb conductive member 302 located in the first lock body 41, the two conductive connection ends 35 of the first barb conductive member 301 and the second barb conductive member 302 are connected in series to the first circuit to form an electrical connection, and the second lock body 42 is detachably engaged with the first lock body 41;

[0050] And at least two conductive parts 52 are provided on the surface of the disposable lock seal 5, and the conductive parts 52 are electrically connected to the circuit in the disposable lock seal 5, including a first conductive part 521 and a second conductive part 522, the first conductive part 521 and the second conductive part 522 are electrically connected to the circuit in the disposable lock seal 5, the radio frequency IC chip 2 is electrically connected to the circuit of the disposable lock seal 5 and is located between the first conductive part 521 and the second conductive part 522, and the length dimension a of the conductive part 52 is any value between 0 cm and 200 cm;

[0051] When the disposable lock seal 5 passes through the second lock body 42 and is inserted into the first preset position of the first lock body 41, the conductive contacts on the two hooks 30 of the first hook conductive member 301 and the second hook conductive member 302 are electrically connected to the first conductive portion 521 and the second conductive portion 522 respectively, so that the first circuit and the circuit in the disposable lock seal 5 are closed and connected, so that the RF IC chip 2 and the RF antenna 1 are electrically connected, and the RF IC chip 2 can be read;

[0052] Among them, the disposable lock seal 5 is provided with at least one anti-retraction structure cooperating with the barb 30. In the process of the disposable lock seal 5 being reversely withdrawn from the first lock body 41, at least one side of the barb 30 having the hook groove 32 gradually approaches and abuts against a stop structure, thereby preventing the disposable lock seal 5 from continuing to move backward.

[0053] Radio Frequency (RF) is the abbreviation of Radio Frequency, which means the electromagnetic frequency that can be radiated into space, ranging from 300KHz to 300GHz. Radio Frequency is short for RF, which is the abbreviation of radio frequency current, a high-frequency alternating electromagnetic wave. Alternating current that changes less than 1000 times per second is called low-frequency current, and alternating current that changes more than 10,000 times per second is called high-frequency current, and radio frequency is such a high-frequency current. High frequency (greater than 10K); radio frequency (300K-300G) is a higher frequency band of high frequency; microwave frequency band (300M-300G) is a higher frequency band of radio frequency. In electronic theory, when current flows through a conductor, a magnetic field is formed around the conductor; when alternating current passes through a conductor, an alternating electromagnetic field is formed around the conductor, which is called an electromagnetic wave. When the frequency of electromagnetic waves is lower than 100khz, the electromagnetic waves will be absorbed by the ground and cannot form effective transmission. However, when the frequency of electromagnetic waves is higher than 100kHz, the electromagnetic waves can propagate in the air and be reflected by the ionosphere at the outer edge of the atmosphere, forming long-distance transmission capability. We call high-frequency electromagnetic waves with long-distance transmission capability radio frequency; radio frequency technology is widely used in the field of wireless communications.

[0054] The locking device of the present invention adopts RFID radio frequency technology, which includes active RFID radio frequency technology and passive RFID radio frequency technology. In this embodiment, passive RFID radio frequency technology can be used to save electricity, especially for some places where electricity is strictly controlled, such as bank storage, warehouse, etc., in order to prevent fire, passive RFID radio frequency technology is used. Of course, in some embodiments, active RFID radio frequency technology can also be used to increase the signal transmission distance, etc. In the present invention, the radio frequency antenna circuit and the radio frequency IC chip or circuit board radio frequency IC chip electrically connected to the radio frequency antenna are matched with each other, and will not be described one by one below.

[0055] In this embodiment, the disposable lock seal 5 is connected with the first lock body 41 and the second lock body 42 so that the lock seal device is in a locked state, and the disposable lock seal 5 is separated from the first lock body 41 and the second lock body 42 so that the lock seal device is in an unlocked state. Because the barb conductive member 3 has an elastic function, it is connected or disconnected with the circuit access end in the disposable lock seal 5 to realize the connection and disconnection of the lock circuit or other circuits. The other circuits can be radio frequency circuits or non-radio frequency circuits. Please refer to Figure 3The reason why the barb conductive member 3 has an elastic function is that one end of the barb conductive member 3 used for connecting with the external connection member is connected to the mounting member through an elastic structure, and the elastic structure can be a spring, such as a compression spring 8. It can be understood that the barb conductive member 3 can have an elastic function itself, such as a spring. In the process of the locking and sealing device forming a locked state, one end of the disposable lock seal 5 slides forward along and presses the force-bearing inclined surfaces 31 of at least two barb conductive members 3 or the other two ends of the two barb conductive members 3 to the position where the circuit in the disposable lock seal 5 is electrically connected to the first circuit. During this process, the barb conductor 3 is subjected to the oblique force applied by the disposable lock seal 5 and bounces up, so that the barb conductor 3 has elastic potential energy or increases the elastic potential energy; when the disposable lock seal 5 is separated from the barb conductor 3, the oblique force is withdrawn, so that the barb conductor 3 rebounds back to its original position or rebounds toward the original position to resist the object that blocks the rebound under the action of elastic potential energy, such as a concave groove appears at the relative sliding position of the disposable lock seal 5 and the barb conductor 3, and the barb conductor 3 and one end of the sliding part further rebound, and if the groove is a through hole, the end will pass through the through hole to the original position under the action of elastic force. The relative movement of the disposable lock seal 5 and the barb conductor 3 can be a linear motion or a curved motion, such as an S-shaped curved motion.

[0056] The oblique force refers to the force acting on the force-bearing inclined surface 31 of the barb conductor 3, which enables it to bounce relative to the original position. After the barb conductor 3 bounces up, the disposable lock seal 5 can slide forward along the force-bearing inclined surface 31. After sliding over the force-bearing inclined surface 31, one end or more than one end of the barb conductor 3 supports the surface of the disposable lock seal 5. The front of the insertion end of the disposable lock seal 5 is also an inclined surface, which facilitates the disposable lock seal 5 to slide into the insertion space of the lock sealing device and reduces resistance.

[0057] The disposable lock seal 5 is locked and connected with at least two barb conductive parts 3 at the concave and convex clamping positions. The two can be separated and locked at the concave and convex clamping positions. The convex part automatically penetrates into the concave part through the elastic function of the barb conductive part 3. The convex end of the barb conductive part 3 can be inserted into the concave end of the disposable lock seal 5 to form a clamping position and lock the connection, or the concave end of the barb conductive part 3 and the convex end of the disposable lock seal 5 can form a clamping position and lock the connection. When each barb conductive part 3 and the circuit in the disposable lock seal 5 are in a conductive and stable state, the disposable lock seal 5 is locked in place, and the disposable lock seal 5 is locked after the position of the barb conductive part 3 is engaged. When the barb 30 of the barb conductive member 3 is connected to the conductive part 52 corresponding to the disposable lock seal 5 by a detachable concave-convex snap-in connection, the RF circuit is closed or disconnected, that is, the barb 30 of the barb conductive member 3 is disconnected from the conductive part 52, that is, the concave-convex structures of the two in the snap-in position are separated, and the RF circuit is disconnected. When the barb 30 of the barb conductive member 3 is connected to the conductive part 52, that is, the concave-convex structures of the two in the snap-in position are connected, and the RF circuit is turned on. The detachable concave-convex snap-in connection ensures that the barb conductive member 3 is connected and disconnected with the circuit in the disposable lock seal 5, and realizes the conversion between the locked state and the unlocked state of the locking device, which is convenient to use. The concave-convex snap-in connection makes the connection between the barb conductive member 3 and the disposable lock seal 5 stable, limits the relative movement between the two and locks them, further ensures the stability of the locked state, and also can feel the vibration when the concave-convex snap-in is felt, which improves the user's hand feeling and is convenient for the user to use. The barb conductive member 3 plays the role of conducting electricity and connecting the circuit. At the same time, the barb conductive member 3 can transmit the electrical signal when reading the radio frequency IC chip 2. In addition, the barb conductive member 3 has an elastic function to support the disposable lock seal 5 so that the disposable lock seal 5 is tightly connected to the lock body, thereby realizing the locking state of the locking device. In the present invention, at least one barb conductive member 3 is used to control the connection between different circuits, so that the radio frequency antenna 1 and the radio frequency IC chip 2 form multiple combined conductions to realize the functions of different circuits. Simplify the structure of the locking device.

[0058] In the technical solution of the present invention, one end of the disposable seal 5 slides forward along and presses the force-bearing inclined surfaces 31 of at least two barbed conductive parts 3 until the radio frequency circuit is in a conducting state, so that the radio frequency IC chip 2 can be read by an external reading device matched therewith through wireless transmission, and it is known that the sealing device is in a locked state. When the external reading device cannot read the radio frequency IC chip 2, it can be determined that the sealing device is not in a locked state. By detecting whether the sealing device is in a locked state, it can be determined whether the bag, bag, box, box, cabinet, etc. equipped with the sealing device contains confidential objects, and the sealing state can be inspected by a batch wireless detection method, that is, it can be inspected at the same time, which is convenient for batch inventory, simple to operate, and widely used.

[0059] Please refer to it again Figure 2A verification circuit is provided inside the second lock body 42, the disposable lock seal 5 further includes a third conductive part 523 and a fourth conductive part 524, the disposable lock seal 5 is further provided with a second circuit and a third circuit, the first conductive part 521 and the third conductive part 523 are connected in series to the second circuit, the second conductive part 522 and the fourth conductive part 524 are connected in series to the third connection circuit, and the radio frequency IC chip 2 is electrically connected to the second connection circuit or the third connection circuit;

[0060] Among them, when the disposable lock seal 5 passes through the second lock body 42 and is inserted into the first preset position of the first lock body 41, the third conductive part 523 and the fourth conductive part 524 are electrically connected to the verification circuit and connected in series, so that the first circuit, the second circuit, the third circuit and the verification circuit form a complete closed radio frequency circuit.

[0061] It can be understood that the disposable lock seal 5 also includes a fourth circuit of the lock seal. When the lock seal device is in a locked state or an unlocked state, the fourth circuit of the lock seal is connected to the circuit in the first lock body 41 or the second lock body 42 through at least one barb conductive member 3. For example, when the disposable lock seal 5 slides to a preset distance, one end of the barb conductive member 3 supports or touches the access end of the fourth circuit of the lock seal, so that the fourth circuit of the lock seal forms a closed loop. The preset distance can be the position in the locked state or other positions. The circuit in the disposable lock seal 5 can be one, two, or more than two. Two circuits can be turned on at the same time, or one, or more than two. If the disposable lock seal 5 also includes a fifth circuit of the lock seal and a sixth circuit of the lock seal, the present invention does not limit them one by one, and the number and type of the lock seal circuits, the time of conduction, and the position of conduction are designed according to the needs of use.

[0062] In some other embodiments, please refer to Figure 5 The disposable lock seal 5 is provided with a second circuit, the first conductive part 521 and the second conductive part 522 are electrically connected to the second circuit, and the RF IC chip 2 is electrically connected to the second circuit; when the disposable lock seal 5 passes through the second lock body 42 and is inserted into the first preset position of the first lock body 41, the conductive contacts on the two hooks of the first barb conductive member 301 and the second barb conductive member 302 are electrically connected to the first conductive part 521 and the second conductive part 522 respectively, so that the first circuit and the second circuit are closed and connected, so that the RF IC chip 2 and the RF antenna are electrically connected, and the RF IC chip 2 can be read.

[0063] In the present invention, the circuit is a conductive loop composed of metal wires and electrical and electronic components. When the circuit is connected, it generates current to work. The circuit can work by an external power supply or by RFID radio frequency identification technology. Different circuit functions can be achieved according to different electronic components connected to the circuit.

[0064] Electrical connection refers to connecting each segmented circuit directly through a mechanical structure so that the circuits are connected. The mechanical structure can be a metal wire, a conductive sheet, a conductive block or a conductive plate, etc. In the present invention, the access end of the circuit refers to the end that can connect the circuit. The access end is attached to a physical mechanical component. The mechanical component can be a conductive sheet, a conductive block or a conductive plate, etc. The exposed parts of the wire, conductive sheet, conductive block and conductive plate constitute a conductive area (also called a conductive cell). The conductive area is composed of countless conductive contacts. Connecting any conductive contact will connect the corresponding circuit. When there is current in the circuit, the circuit will perform corresponding work. In the invention, the conduction between the radio frequency antenna circuit and the circuit in the disposable lock seal 5 is achieved by the barb conductive member 3.

[0065] In this embodiment, the first circuit, the second circuit, the third circuit and the sealing inspection circuit include other electronic components to form a radio frequency antenna circuit. The electronic components include resistors, capacitors, amplifiers, etc., which are not limited here one by one, as long as the corresponding functions are achieved. The radio frequency IC chip integrates product information such as the type, quantity, and specifications of the sealed products and other related information, such as geographic location information. Since the barb conductive part 3 has an elastic function, the barb conductive part 3 can bounce up when subjected to force, and can automatically bounce back after the force is removed, thereby achieving the automatic electrical connection between the barb conductive part 3 and the circuit access end, and the two are tightly and stably connected.

[0066] Furthermore, each barb conductive member 3 has an elastic function. When the force-bearing inclined surface 31 is subjected to an oblique force, the barb conductive member 3 can bounce up, and when the oblique force is withdrawn, the barb conductive member 3 bounces back to its original position.

[0067] Among them, the barb 30 includes a force-bearing inclined surface 31 and a hook groove 32, and the side of the barb facing away from the hook groove 32 is constructed as the force-bearing inclined surface 31. The surface of the disposable lock seal 5 is constructed with at least one stop structure 56 that cooperates with the barb, so that after the disposable lock seal 5 is inserted into the first lock body and / or the second lock body and then withdrawn from the first lock body and / or the second lock body in the reverse direction, at least one side of the barb with the hook groove 32 gradually approaches and abuts against each other with a stop structure 56, thereby preventing the disposable lock seal 5 from continuing to move backward.

[0068] In this embodiment, please refer to Figure 6 The force-bearing inclined surface 31 of the barb conductive member 3 is arranged away from the barb conductive member body, and the side away from the force-bearing inclined surface 31 and the adjacent barb conductive member body form a hook groove 32; or please refer to the specific Figure 4 The force-bearing inclined surface 31 of the barb conductive member 3 is arranged toward the barb conductive member body, and the side opposite to the force-bearing inclined surface 31 is recessed to form a hook groove 32. It can be understood that the connection position relationship between the barb and the barb conductive member body can be designed arbitrarily as long as the corresponding function can be achieved.

[0069] Please refer to the following for further information Figure 7 The sealing device 100 further includes a circuit board 6, wherein at least one circuit is provided in the circuit board 6, one of which is named as a first circuit board circuit, and two access terminals of the first circuit board circuit are exposed on the surface of the circuit board;

[0070] Among them, when the first barb conductive member 301 and the second barb conductive member 302 are not pressed against the disposable lock seal 5, the two conductive connecting ends 30 of the first barb conductive member 301 and the second barb conductive member 302 are respectively pressed against the two access ends of the first circuit of the circuit board to make the first circuit conductive with the first circuit of the circuit board.

[0071] In this embodiment, when the locking device 100 is in an unlocked or unlocked state, at least the first barb conductive member 301 and the second barb conductive member 302 abut against the circuit board 6 under the elastic force they have, and are electrically connected to the two access ends of the first circuit of the circuit board, and the first circuit of the circuit board includes at least one circuit board RF IC chip 62. Therefore, when the circuit board RF IC chip 62 in the first circuit of the circuit board is read, it can be determined that the locking device 100 is in an unlocked or unlocked state;

[0072] When the locking device 100 is in the locked state, the disposable lock seal 5 is located between the circuit board 6 and at least the first barb conductive member 301 and the second barb conductive member 302, and the disposable lock seal 5 blocks the first barb conductive member 301 and the second barb conductive member 302 from contacting the two access ends of the first circuit of the circuit board, and the two barbs 30 of the first barb conductive member 301 and the second barb conductive member 302 respectively touch the first conductive part 521 and the second conductive part 522, so that the radio frequency circuit is turned on. Therefore, according to the reading of the radio frequency IC chip 2 located in the complete radio frequency circuit formed by the first circuit of the disposable lock seal and the radio frequency antenna 1, it can be judged that the locking device 100 is in the locked state, and the first circuit of the circuit board is disconnected at this time. It is convenient to carry out inventory when using in batches, obtain the number of locking devices 100 and their locked state, and the first circuit of the circuit board can be used to obtain product information, etc. As long as the switching between circuits is obtained by this method, it is within the protection scope of the present invention, such as the first circuit of the circuit board is provided with a circuit board radio frequency IC chip 62, which can read the corresponding information.

[0073] It is understandable that the circuit board 6 may also include other circuit board circuits (not shown), such as the circuit board 6 including a second circuit board circuit. When the locking device is in a locked state, the second circuit board circuit and the circuit in the disposable lock seal 5 are turned on or off. When the locking device is in an unlocked or unlocked state, the second circuit board circuit and the circuit in the disposable lock seal 5 are turned on at the same time. In the present invention, at least one barb conductive member 3 is used to control different circuit board circuits and the circuit in the disposable lock seal 5 to be combined and connected, so that the RF antenna 1 and the RF IC chip 2 are used in multiple combinations to realize the functions of different circuits.

[0074] Please refer to the following for further information Figure 8 The surface of the disposable lock seal 5 is concavely provided with at least one sliding groove 51, each sliding groove 51 can accommodate a barb 30 of a barb conductive member 3, the conductive portion 52 is laid on the inner wall of the sliding groove 51, and at least one inner wall of at least one sliding groove 51 is constructed with at least one stop structure.

[0075] Among them, at least one side of the disposable lock seal 5 is concavely provided with a sliding groove 51, and the conductive part 52 is located on the surface of the disposable lock seal 5. At least one conductive part 52 is laid on the inner wall of at least one sliding groove 51, and the length dimension of the conductive part 52 is a, 0mm<a≤200mm, for example, two conductive parts 52, three conductive parts 52, or more than three conductive parts 52 are laid on the inner wall of a sliding groove 51;

[0076] Among them, the two conductive parts 52 corresponding to the first barb conductive part 301 and the second barb conductive part 302 are named as the first conductive part 521 and the second conductive part 522, and the inner wall of a sliding groove 51 is paved with the first conductive part 521 and / or the second conductive part 522. The first barb conductive part 301 and the second barb conductive part 302 respectively realize the conduction of the first circuit of the lock seal by holding and touching with the first conductive part 521 and the second conductive part 522, thereby realizing its electrical connection with the RF antenna 1.

[0077] Among them, the conductive part 52 can conduct electricity and is used to electrically connect with the circuit in the disposable lock seal 5. The conductive part 52 occupies a certain surface area on the disposable lock seal 5. The surface of the conductive part 52 is preferably a plane, and can also be a curved surface, which is designed according to the needs of use. The conductive part 52 has a certain length, which can ensure that the circuit is still in a conductive state during the sliding process of the disposable lock seal 5 into or out of the lock body 4, and different signals are transmitted. At the same time, it is beneficial to control all conductive parts 52 in a conductive state. It should be noted that the conductive parts 52 connected to different access ends of different circuits are different conductive parts 52, and the exposed surface of the conductive part 52 is a conductive contact surface (not marked). The conductive contact of the conductive part 52 contacts the barb conductive member 3 to realize the connection of the two circuits. The length dimensions of the conductive part 52 are 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, etc.

[0078] Among them, the sliding groove 51 plays a limiting role on the barb conductor 3. The sliding groove 51 allows the barb conductor 3 to slide along the sliding groove 51, that is, it limits the sliding path of the barb conductor 3 on the disposable lock seal 5, thereby improving the accuracy and stability of the electrical connection between the barb conductor 3 and the conductive part 52. At the same time, it prevents the locking device from sliding relative to the disposable lock seal 5 due to external impact or vibration, resulting in the separation of the barb conductor 3 and the conductive part 52, affecting the use effect, enhancing the relative position stability of the barb conductor 3 and the disposable lock seal 5 or the circuit board 6, and being able to keep the disposable lock seal 5 locked in place, thereby improving the use performance and extending the service life of the locking device.

[0079] The disposable seal 5 may be provided with a sliding groove 51 on one side, or on two sides (not shown) or more than two sides (not shown). The surface of the disposable seal 5 is provided with at least two spaced convex ribs 53, and the adjacent convex ribs 53 and the disposable seal 5 therebetween form a sliding groove 51. At least one conductive part 52 is located on the bottom wall or side wall of the sliding groove 51, and the length direction of the conductive part 52 is arranged in parallel with the length direction of the convex rib 53, or the width direction of the conductive part 52 is arranged in parallel with the length direction of the convex rib. The sliding groove 51 can accommodate a barb 30 in the transverse direction, or the length direction of the conductive part 52 is arranged between the length direction and the width direction of the convex rib 53. The convex rib 53 and the disposable seal 5 can be integrally formed or separately provided, and the separately provided convex rib 53 is connected to the surface of the disposable seal 5 by welding, gluing, clamping, etc. When the disposable seal 5 is provided with a plurality of slide grooves 51, the plurality of slide grooves 51 are arranged in parallel, and the slide grooves 51 can be arranged along a straight line or a curve, such as the groove walls of the slide grooves 51 forming concentric circles, and some slide grooves 51 are not provided with a conductive part 52, and some slide grooves 51 are provided with one, two, or more than two conductive parts 52. In some other embodiments, please refer to Fig. 9 , the surface of the disposable lock seal 5 may not have the sliding groove 51.

[0080] Furthermore, a limiting groove 511 is recessed on the bottom wall of the sliding groove 51, and at least one conductive portion 52 is located in a limiting groove 511;

[0081] The surface of one side wall of the limiting groove 511 coincides with its orthographic projection on the horizontal plane or is arranged at an acute angle to form a stop structure. The surface of the side wall is supported by a horizontal force, thereby preventing the barb 30 from continuing to move in the reverse direction.

[0082] In this embodiment, during the process of inserting the disposable lock seal 5 into the first lock body and the second lock body, the disposable lock seal 5 interacts with the two force-bearing inclined surfaces 31 of the first barb conductive piece 301 and the second barb conductive piece 302, so that the first barb conductive piece 301 and the second barb conductive piece 302 pop up, and when the disposable lock seal 5 is inserted between the circuit board 6 and the first barb conductive piece 301 and the second barb conductive piece 302 and slides forward to the locking position, the two barbs 30 of the first barb conductive piece 301 and the second barb conductive piece 302 pop into the bottom wall of the limiting groove 511 from the bottom wall of the sliding groove 51, until they are connected to the conductive part 52 of the bottom wall to form a locking state. The limiting groove 511 and the barb conductive member 3 are used to form a concave-convex clamping position at one end connected thereto, and the inner wall of the limiting groove 511 constitutes a stop structure 56 to ensure that the disposable lock seal 5 inserted into the first lock body 41 and / or the second lock body 42 is reversely pulled out or withdrawn from the first lock body 41 and / or the second lock body 42 to avoid unlocking. At the same time, the first and second barb conductive members slide from the bottom wall of the sliding groove 51 into the bottom wall of the limiting groove 511, and the user's hand can receive a perception due to vibration, and obtain that the disposable lock seal 5 has been connected to the radio frequency circuit, ensuring that the locking device 100 is locked.

[0083] Furthermore, at least one sliding groove 51 is provided with at least two conductive parts 52 .

[0084] Please refer again Figure 2 The sealing device 100 further includes a third barb conductive member 303 and a fourth barb conductive member 304. Two conductive connection ends 35 of the third barb conductive member 303 and the fourth barb conductive member 304 are connected in series to the verification circuit. When the disposable seal 5 is inserted into the first lock body 41 to the first preset position, the conductive contact surfaces of the third barb conductive member 303 and the fourth barb conductive member 304 are electrically connected to the third conductive portion 523 and the fourth conductive portion 524 respectively.

[0085] Furthermore, in order to enhance the holding and supporting strength of the barb conductor 3 and avoid deformation due to insufficient supporting strength of the barb conductor 3, resulting in loose connection or separation between the barb conductor 3 and the circuit board 6 and the disposable lock seal 5, thereby affecting the locking effect. The locking device also includes another first barb conductor 301, two first barb conductors 301 are connected in parallel to an access end of the first circuit to increase the compressive strength, and the corresponding disposable lock seal 5 is provided with two first conductive parts 521 in parallel, wherein, when the locking device is in the locking state, the two first barb conductors 3 are respectively held against the two first conductive parts 521, wherein at least one first barb conductor 301 is electrically connected to its corresponding first conductive part 521 to conduct the radio frequency circuit.

[0086] When the sealing device is in the sealing state, only one of the two first barb conductors 301 needs to be electrically connected to a first conductive part 521 to satisfy the circuit connection function. When the sealing device is in the sealing state, both first barb conductors 301 are electrically connected to two first conductive parts 521. It is known to those skilled in the art that one access end of the first circuit can be provided with two barb conductors 3, or more than two barb conductors 3, such as three, four, five, etc. The disposable seal 5 can also be provided with only one first conductive part 521, and one of the two first barb conductors 301 is used to conduct with the first conductive part 521. That is, the first barb conductive member 301 can also be used only to increase the supporting strength without being connected to the circuit, such as a reinforced barb conductive member 3 arranged in parallel with the first barb conductive member 301, the reinforced barb conductive member 3 is not connected to the circuit, or two first barb conductive members 301 are connected to the same circuit access end, the two share the pressure of the disposable lock seal 5, thereby increasing the strength of supporting the disposable lock seal 5, and also preventing the first barb conductive member 301 from being worn due to long use.

[0087] And / or, the sealing device 100 further includes a fifth barb conductive member, which is connected in parallel with the first barb conductive member 301 to the first circuit and arranged side by side adjacent to each other, and when the disposable seal 5 is inserted into the first preset position of the first lock body 41, the barb of the fifth barb conductive member is located in the sliding groove 51 adjacent to the first barb conductive member 301;

[0088] And / or, the locking and sealing device 100 also includes a sixth barb conductor, which is connected in parallel with the second barb conductor 302 to the first circuit and is arranged side by side. When the disposable lock seal 5 is inserted into the first preset position of the first lock body 41, the barb of the sixth barb conductor is located in the sliding groove 51 adjacent to the second barb conductor 302.

[0089] Furthermore, the first lock body 41 further includes a seventh barb conductive member, an eighth barb conductive member and a fifth circuit, two conductive connection ends of the seventh barb conductive member and the eighth barb conductive member are connected in series to two access ends of the fifth circuit and form an electrical connection, a second circuit of the circuit board is provided in the circuit board, and two access ends of the second circuit of the circuit board are exposed on the surface of the circuit board, please refer again Figure 8 The disposable lock seal is also provided with two through holes 59;

[0090] When the seventh and eighth barb conductive members are not in contact with the disposable seal 5, the two barbs of the seventh and eighth barb conductive members are in contact with the two access ends of the second circuit of the circuit board, so that the fifth circuit and the second circuit of the circuit board form a closed loop.

[0091] When the disposable lock seal 5 is inserted into the first preset position of the first lock body 41 , the two barbs of the seventh barb conductive member and the eighth barb conductive member pass through the two through holes 59 to hold and contact the two access ends of the second circuit of the circuit board.

[0092] In this embodiment, when the sealing device 100 is not in the sealing state, the external reading device matched therewith can detect the second circuit of the circuit board and the first circuit of the circuit board, and when the disposable sealing label 5 is supported and slid against the first barb conductive member 301 and the second barb conductive member 302, the first circuit of the circuit board and the first circuit are disconnected;

[0093] When the disposable lock seal 5 and the seventh and eighth barb conductive pieces are supported and slid, the second circuit of the circuit board is disconnected from the fifth circuit. When the disposable lock seal 5 is inserted into the first preset position of the first lock body 41, the two barbs of the seventh and eighth barb conductive pieces pass through the two through holes 59 to support and contact the two access ends of the second circuit of the circuit board, so that the fifth circuit and the second circuit of the circuit board form a closed loop that is connected, and the first circuit is connected to the sealing inspection circuit. According to the detected second circuit of the circuit board, it can be determined that the seal has been locked in place. The hand can also feel the dynamics of the two barbs of the seventh and eighth barb conductive pieces passing through the two through holes 59, so it can be determined that the seal has been locked in place by feeling, thereby preventing the sealing inspection circuit from being unable to be detected due to the disposable lock seal 5 not being accurately inserted into place.

[0094] Further, please refer to Fig.10 The first lock body 41 is penetrated by a first insertion hole, and the barb 30 of the barb conductive member in the first lock body 41 is partially or completely located in the first insertion hole, and the second lock body 42 is penetrated by a second insertion hole, and the barb 30 of the barb conductive member 3 in the second lock body 42 is partially or completely located in the second insertion hole;

[0095] The maximum length of one end of the disposable lock seal 5 forming the limiting wing along the width direction of the sliding groove 51 is greater than the maximum size of the first insertion hole and the maximum size of the second insertion hole;

[0096] When the second lock body 42 and the first lock body 41 are engaged and connected, the first insertion hole is horizontally connected to the second insertion hole. When the disposable lock seal 5 passes through the second lock body 42 and is inserted into the first preset position of the first lock body 41, the end of the disposable lock seal 5 away from the limiting wing 54 passes through the second insertion hole and is inserted into the first insertion hole until the limiting wing 54 abuts or approaches or abuts against the opening periphery of the second insertion hole.

[0097] Among them, the limiting wing 54 is limited at the opening periphery of the second plug hole and the barb conductive piece 3 is engaged with the stop structure 56 to form a lock on the mechanical structure of the locking and sealing device 100. The disposable lock seal 5 makes it impossible for the first lock body 41 and the second lock body 42 to be separated. Without destroying the structure of the locking and sealing device 100, the disposable lock seal 5 can neither continue to be pushed into the first lock body 41 nor be withdrawn from the first lock body 41 and the second lock body 42.

[0098] In the present invention, the first lock body includes a plastic shell 411 and a metal inner shell 412, a first receiving groove is provided inside the plastic shell 411, a second receiving groove is provided inside the metal inner shell 412, the metal inner shell 412 is received in the first receiving groove, and a limiting structure cooperating with the metal inner shell 412 is provided on the inner wall of the first receiving groove, so that a receiving space is formed between the top wall of the first receiving groove and the top wall of the second receiving groove, the radio frequency antenna 1 is arranged in the receiving space, and the side of the circuit board antenna paved with the metal layer faces the top wall of the second receiving groove;

[0099] The second lock body 42 is detachably connected to the first lock body 41, the metal inner shell 412 is penetrated by a first socket, the first socket is communicated with the second receiving groove, the circuit board 6 is located in the second receiving groove, the end of the barb conductive member 3 having a force-bearing inclined surface 31 is located in the first socket (not marked), and the second lock body 42 is penetrated by a second socket (not marked). When the second lock body 42 and the first lock body 41 are engaged and connected, the first socket is connected to the second socket.

[0100] Among them, the plastic shell 411 reduces or eliminates signal interference to the RF antenna 1 board, and the metal inner shell 412 shields the external interference to the RF antenna 1 on the one hand, and on the other hand, the electromagnetic waves emitted by the RF antenna 1 hit the metal inner shell 412, and the metal inner shell 412 can reflect part of the electromagnetic waves, thereby enhancing the electromagnetic wave strength of the antenna and improving the ability of the RF antenna 1 to transmit wireless signals. The side of the RF antenna board 10 paved with the metal layer faces the top wall of the second receiving groove, further enhancing the electromagnetic wave transmission strength of the RF antenna 1. The limiting structure supports and clamps the RF antenna 1 board, and the RF antenna board 10 is now located in the receiving space to prevent the RF antenna board 10 from shaking, thereby affecting the effect of the RF antenna 1 receiving and transmitting electromagnetic waves. The second lock body 42 is engaged with the first lock body 41, and the relative position of the second lock body 42 and the first lock body 41 is first fixed to prevent relative movement or separation, and then connected into one body, which is convenient for further locking. The disposable lock seal 5 is inserted into the first jack and the second jack to realize the physical locking and RF circuit conduction of the locking device 100. The limiting wings 54 are convenient for holding, and are convenient for accurately finding the position for inserting the second lock body 42 and the first lock body 41 to achieve locking.

[0101] Among them, the metal inner shell 412 can effectively prevent the structural combustion of the internal sealing device from extending to the outside of the metal inner shell 412, avoiding causing a fire in the environment where the sealing device is located. At the same time, the metal inner shell 412 has shock-proof and explosion-proof functions.

[0102] Please refer to it again Figure 8 and Fig. 9 , a stop wing 54 is formed at one end of the disposable lock seal 5 to prevent the disposable lock seal 5 from being inserted further into the first plug hole, and the stop wing 54 is located at the opposite end of the end inserted into the lock body 4, and a stop wing 54 is formed at one end of the lock seal body, and the length dimension of one end of the lock seal body with the stop wing 54 is greater than the aperture dimension at the opening of the second plug hole, when the second lock body 42 and the first lock body 41 are engaged and connected, the first plug hole is connected with the second plug hole, and the end of the disposable lock seal 5 for inserting the lock body passes through the second plug hole to the first plug hole locking position, so that the lock sealing device 100 forms a locked state, and the stop wing 54 is located around the opening of the second plug hole, and the part of the lock seal body inserted into the first plug hole and the second plug hole is connected with the gap of the first plug hole and the second plug hole, and the gap is greater than zero. It can be understood that the shape of the plug hole matches the shape of the part where the lock seal is inserted, and the shape of the circumferential cross section of the plug hole can be a long strip, a circle, a semicircle, a square, a polygon or other regular and irregular shapes.

[0103] The second lock body 42 further includes at least one barb conductive member 3, and the barb conductive member 3 is used to conduct with the circuit in the disposable lock seal 5;

[0104] When the locking and sealing device 100 is in a locked state or an unlocked state, at least one barb conductive piece 3 is connected to the circuit in the disposable lock seal 5. The barb conductive piece 3 in the second lock body 42 can be connected to one circuit in the disposable lock seal 5, or two or more circuits, which can be set according to the required functions of the locking and sealing device 100.

[0105] Furthermore, the disposable lock seal 5 is in a plate shape, or a long strip shape, or a circle shape, or a semicircle shape, or an ellipse shape, or a rectangular parallelepiped shape.

[0106] like Fig.11 and Fig.12 The disposable lock seal 5 is shown as a columnar one-time lock seal 5. The disposable lock seal 5 presses one end of the barb conductive member 3 having a force-bearing inclined surface 31. The columnar one-time lock seal 5 is provided with a conductive part 52 on the axis, and / or a conductive part 52 is provided around the periphery, and / or a conductive part 52 is provided at both ends of the columnar one-time lock seal 5.

[0107] The circuit surface in the disposable lock seal 5 is covered with a shaping layer to form a lock seal body, and the shaping layer is an insulating material, and the insulating material includes a plastic material;

[0108] Please refer again Figure 7 The lock seal body is also provided with at least one receiving hole (not shown), and the hole wall of the receiving hole is fixedly connected with an elastic spine 57, which is elastic and curved, and protrudes from the surface of the lock seal body. One elastic spine 57 is received in one receiving hole, or two elastic spines 57 are received in one receiving hole, or multiple elastic spines 57 are received in one receiving hole. The number of elastic spines 57 can be one, two, or more. When the lock seal body is received in or inserted into the first lock body 41 and / or the second lock body 42, the elastic spine 57 partially abuts against the first lock body 41 and / or the second lock body 42, thereby playing a role in fixing the lock seal body, so that the relative position relationship between the lock seal body and the first lock body 41 and / or the second lock body 42 is stable, and the elasticity of the elastic spine 57 itself is conducive to the relative movement of the two under the action of external force.

[0109] Please refer to Fig.13 Among them, the shaping layer formed by the plastic material has a plurality of reinforcing blind holes 58 on its surface, and the reinforcing blind holes 58 play the role of shaping and reinforcing the strength of the disposable lock seal 5 body.

[0110] Alternatively, the circuit surface inside the disposable lock seal 5 body is covered with an insulating layer, and the outer surface of the insulating layer is covered with a shell, and the material of the shell includes metal material.

[0111] Please refer to it again Figure 3 , Figure 4 and Figure 6 The barb conducting member 3 comprises a metal body, a barb 30 is formed at one end of the metal body, the metal body is connected to the mounting member 7 in the lock body by an elastic connection, and a connecting shaft 34 is constructed at the connection point.

[0112] In this embodiment, the material of the barb conductive member is a conductive material, and the metal body is conductive, preferably copper, and may also be other metals, such as iron, alloy, gold, silver, aluminum, and their products, etc. Of course, the material of the barb conductive member may also be other conductive materials, as long as it can achieve the corresponding conductive function.

[0113] In the present invention, the barb conductor 3 can be elastically connected by elastic parts such as the compression spring 8. For example, one end of the barb conductor 3 has an elastic connection structure, and the elastic connection structure is used to elastically connect with the external connection component. The elastic connection structure also includes a torsion arm groove for engaging the torsion arm. One torsion arm of the torsion spring is engaged with one torsion arm groove, and the other torsion arm is engaged with the external connection component, so that the side of the barb conductor 3 facing away from the torsion arm groove supports the external connection component. When the barb conductor 3 is subjected to a pressing force, the barb conductor 3 is compressed and moves circumferentially around the connecting axis. When the force is withdrawn, the elastic potential energy of the torsion spring is converted into kinetic energy, so that the barb conductor 3 can bounce back to its original position or retreat toward the original position until it supports the circuit board 6 or the disposable lock seal 5.

[0114] Furthermore, if Figure 4 The metal body is used to connect the mounting piece, and one end of the surface is covered with a plastic molding layer 33. At least one connecting column 331 is constructed on the plastic molding layer 33. The connecting column 331 has a connecting hole passing through it, and a torsion spring 8 is sleeved on the outside. At least one connecting column 331 is sleeved on the connecting shaft 34, and the connecting shaft 34 is installed on the mounting piece 7. The barbed conductive piece 3 realizes elastic movement through the torsion spring 8.

[0115] In the present invention, the number of the barb conductive members 3 is set as required. The number of the barb conductive members 3 can be 3, 4, 5, 6, 7, 8, 9, 10, etc. Please refer to Fig.14 Two or more barb conducting members 3 are located on the mounting member 7, and the mounting member 7 can be as follows Fig.14 The plate shape shown may also be other shapes, such as columnar, square, other regular or irregular shapes, etc.

[0116] Specifically, the barb of the barb conductive part is connected to the metal body at any angle, such as the position of the barb on the metal body including the left side, right side, top, bottom, front end, rear end, left rear side, front and back sides. The metal body is set horizontally or roughly horizontally, and the barb is higher than the metal body; or, the metal body is set roughly vertically, and the barb is located at the upper end or lower end of the metal body. Please refer to Fig.14The metal body has a conductive connection terminal 35, which is used to directly connect to the circuit. The conductive connection terminal 35 can be convex or concave on the metal body. The surface of the barb is a conductive contact surface, and the conductive contact and the conductive connection terminal 35 are electrically connected through the metal body. Or the surface of the structure formed by the conductive connection terminal 35 and the conductive contact is paved with an insulating shaping layer, and the conductive contact is electrically connected to the conductive connection terminal 35 through the barb conductive part body, and the surface of the barb conductive part body is partially or completely covered with a shaping layer of plastic material, that is, the barb conductive part 3 includes a metal structure for conducting the circuit, and the outer surface of the metal structure is partially or completely covered with a plastic layer, and the metal structure is a metal wire, or a metal strip, or a metal block, or a metal sheet, or other irregularly shaped metal structures. The metal is a conductive metal, and the metal includes silver, copper, aluminum, iron, tungsten and alloys. The conductive connection terminal 35 is made of a conductive material, such as metal. The conductive connection end can be formed by metal plating on the surface of the hook portion, or can be a metal sheet or a metal block embedded or protruding on the barb conductive component body, and the metal is a conductive metal.

[0117] Antenna is a converter that converts the guided wave propagating on the transmission line into electromagnetic waves propagating in an unbounded medium (usually free space), or vice versa. It is a component used to transmit or receive electromagnetic waves in radio equipment. Engineering systems such as radio communications, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, radio astronomy, etc., all of which use electromagnetic waves to transmit information, rely on antennas to work. In addition, in terms of transmitting energy with electromagnetic waves, non-signal energy radiation also requires antennas. Generally, antennas are reversible, that is, the same antenna can be used as both a transmitting antenna and a receiving antenna. The basic characteristic parameters of the same antenna as a transmitter or receiver are the same. Antennas are now more and more widely used, anti-interference requirements are becoming more and more stringent, and the types of designs are also diverse. For example, the RF antenna used in RFID electronic seals or tags has been widely used in the field of logistics. It can store relevant data of commodities, credit cards, access cards and vehicle control in RF. The RF antenna circuit matches the RF IC chip in the RFID electronic seal, and the RFID reader matching the RF antenna reads the information in the RF IC chip. RFID electronic seals can also be used in sealing devices. When the sealing device is in the sealed state, the radio frequency IC chip can be read. Among them, the ideal antenna does not consider the feeder, but in order to lead out the signal, the lead-out point is called the feeder, which is expressed in English as feedpoint. The addition of the feeder generally affects the field distribution of the antenna, and the selection of this point is also particular.

[0118] When making the RFID electronic tags currently used in the market, a plastic sheet is first prepared, and an antenna and circuit for receiving and transmitting signals are made on the plastic sheet. Then a radio frequency IC chip is pasted on the circuit of the plastic sheet, and the pins of the radio frequency IC chip are electrically connected to the antenna. When the RFID electronic tag is made, adhesive is directly applied on the surface with the antenna and the radio frequency IC chip, so that the RFID electronic tag can be pasted on goods, objects or parts for use. When the RFID reader transmits a signal to the RFID electronic tag for reception, the radio frequency IC chip is activated, and the data stored in the radio frequency IC chip is then transmitted to the RFID reader through the antenna for reception, and the RFID reader can read the return signal of the RFID electronic tag. Since the application of traditional typical RFID electronic tags is limited by external environmental factors, such as in water, liquid or high humidity air, the signal read by the RFID reader is easily disturbed and diffracted, resulting in a high error rate of the read signal. In addition, if the RFID electronic tag is pasted on an object with a metal surface, it will also cause a high error rate of data reading or it cannot be read.

[0119] Specifically, the RF antenna 1 is a ceramic antenna, or a loop antenna, or a circuit board antenna, or a wire antenna. Among them, the ceramic antenna adopts a ceramic shell, which has the capabilities of anti-interference, anti-lightning, waterproof and dustproof. The loop antenna is a structure in which a metal wire is wound into a certain shape, such as a circle, square, triangle, etc., with the two ends of the conductor as output ends. An antenna that is wound with multiple turns (such as spiral or overlapping windings) is called a multi-turn loop antenna. The main forms of wire antennas are dipole antennas, half-wave oscillator antennas, cage antennas, monopole antennas, whip antennas, tower antennas, spherical antennas, magnetic antennas, V-shaped antennas, diamond antennas, fishbone antennas, Yagi antennas, log-periodic antennas, antenna arrays, etc. (see non-directional antennas, weakly directional antennas, and strongly directional antennas). Please refer to Fig.15 , a metal layer (not shown) is laid on one side of the radio frequency antenna board 10, and an antenna 12 is laid on the other side. The thickness of the radio frequency antenna board 10 is any value between 0.1mm and 100mm, such as 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm and 2.9mm. Among them, on the one hand, the metal layer shields the influence of external signals on the circuit board antenna 10, and on the other hand, the electromagnetic waves emitted by the antenna hit the metal layer, and the metal layer can reflect part of the electromagnetic waves, thereby enhancing the electromagnetic wave intensity of the antenna and improving the ability of the antenna to transmit wireless signals, that is, improving the gain. The radio frequency antenna board 10 with a thickness of any value between 0.1mm and 100mm can ensure that the ultra-high frequency RFID antenna and the high frequency RFID antenna can be read. For example, in the design of 2.6mm, the interference between the two is small. An ultra-high frequency RFID antenna is connected to the radio frequency circuit. When the locking device is in the locking state, the high frequency RFID antenna can work or not, and is controlled according to the specific design.

[0120] Please refer to Fig.16 Furthermore, the sealing device 100 further includes at least one boosting structure 8 for pushing out the disposable sealing label 5, the boosting structure 8 includes an elastic connecting member 81, a base 82 and a hand push rod 83, one end of the hand push rod 83 is formed with a boosting inclined surface 831, one end of the elastic connecting member 81 is connected to the base 82, and the hand push rod 83 is connected to the base 82 and a receiving space is formed therebetween;

[0121] Among them, the first lock body 41 is constructed with at least one roughly long and narrow boosting groove (not marked), and the boosting groove (not marked) is provided with an opening at one end along the length direction. The other end of an elastic connecting member 81 is connected to the inner wall of the boosting groove, and the two sides of the base 82 are limited in the boosting groove, and the bottom wall of the boosting groove is inserted into the accommodating space formed between the hand push rod 83 and the base 82; when the locking and sealing device 100 is in the locking and sealing state, the hand push rod 83 is pushed so that the boosting inclined surface faces and supports the guiding inclined surface of the disposable lock seal 5, and when the limiting wing 54 is separated from the lock seal body, the boosting inclined surface pushes the lock seal body to move forward, and when the thrust is withdrawn from the hand push rod 83, the elastic connecting member 81 pulls back the hand push rod 83 to return it to its initial position.

[0122] Specifically, when the boosting bevel is against the guiding bevel (not shown), the boosting bevel 1 is in contact with the guiding bevel. Specifically, the orthographic projection angle of the boosting bevel on the vertical plane along the movement direction of the disposable seal 5 is an acute angle, and the orthographic projection angle of the guiding bevel on the vertical plane along the movement direction of the disposable seal 5 is an acute angle.

[0123] Specifically, the base 82 is configured with a fixed receiving groove (not shown), and the elastic connector 81 is received in the fixed receiving groove. Specifically, a fixed column (not shown) is protruded from the bottom wall of the boosting groove (not shown), and one end of the elastic connector 81 is sleeved on the fixed column.

[0124] Specifically, a hand pushing portion 830 is provided at one end of the hand pushing rod 83 away from the boosting inclined surface, and the boosting inclined surface 831 is formed on the hand pushing portion 830 , and the boosting inclined surface 831 is arranged away from the hand pushing rod 83 .

[0125] Specifically, the boosting slope 831 is provided with a friction structure, and the friction structure can be one or a combination of circular protrusions, elongated protrusions, irregular-shaped protrusions, etc.

[0126] Specifically, the elastic connecting member 81 can be a spring, an elastic rubber band, etc.

[0127] Specifically, the push rod 83 and the base 82 are arranged in a U shape, and the boosting inclined surface is arranged away from the U-shaped opening.

[0128] In the present invention, the second lock body 42 and the first lock body 41 are connected by a limiting snap-fit ​​structure 43 provided in the middle. A structure of the limiting snap-fit ​​structure 43 is introduced below. A limiting snap-fit ​​structure 43 can be provided between the first lock body 41 and the second lock body 42. The limiting snap-fit ​​structure 43 can make the first lock body 41 and the second lock body 42 merge and separate. The limiting snap-fit ​​structure 43 includes a first limiting plate (not marked), a second limiting plate (not marked), a first blocking member (not marked) and a second blocking member (not marked). The first blocking member and the second blocking member are respectively located on both sides of the second limiting plate, and the first blocking member, the second blocking member and the second limiting plate form a limiting groove (not marked), and the first limiting plate can be accommodated in the limiting groove; the limiting snap-fit ​​structure also includes a third blocking member, which is located on one side of the first limiting plate, and a convex rib is convexly provided on the side of the third blocking member away from the first limiting plate, and the convex rib, the first limiting plate and the third blocking member form a first fixed groove (not marked). When the first limiting plate is inserted into the limiting groove, the first blocking member is gradually inserted into the first fixing groove, and the first blocking member and the third blocking member are stacked up and down.

[0129] Furthermore, the limiting engaging structure 43 further includes a fourth blocking member (not shown), which is located on a side of the first limiting plate away from the third blocking member, and the convex ridge (not shown), the first limiting plate and the fourth blocking member form a second fixed groove (not shown), and an accommodation space is formed between the third blocking member and the fourth blocking member and the first limiting plate form a third fixed groove (not shown);

[0130] Among them, when the first limiting plate is inserted into the limiting groove and the first blocking member is inserted into the first fixing groove, the second blocking member is gradually inserted into the second fixing groove, the second limiting plate is gradually inserted into the third fixing groove, and the second blocking member and the fourth blocking member are stacked up and down.

[0131] In the present invention, in the circuit schematic diagram, the circuit is represented by solid lines or dotted lines, and the chip is represented by a block, which does not represent the actual structure.

[0132] To sum up, the locking device 100 of the technical solution of this embodiment connects the circuit inside the radio frequency antenna and the disposable lock seal 5 through the barb conductive piece, so that the radio frequency IC chip 2 located therein can be recognized and read by an external reading and writing device matching the radio frequency antenna circuit, thereby realizing the detection of whether the locking device 100 is in a locked state.

[0133] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A sealing device, characterized in that: include: A radio frequency antenna board, wherein the radio frequency antenna board is provided with a radio frequency antenna; RF IC chip; A barbed conductive piece, wherein one end of the barbed conductive piece has a barb and the other end is provided with a conductive connection end, a conductive contact is provided on the surface of the barb, the conductive contact is electrically connected to the conductive connection end through the barbed conductive piece body, and a side of the barb facing away from the hook groove is configured as a force-bearing inclined surface; A first lock body, on which the RF antenna board is installed, a first circuit is arranged in the first lock body, the RF antenna is electrically connected to the first circuit, the number of the barb conductive pieces is at least two, including a first barb conductive piece and a second barb conductive piece located on the first lock body, and two conductive connection ends of the first barb conductive piece and the second barb conductive piece are connected in series to the first circuit to form an electrical connection; a second lock body, the second lock body being detachably engaged with the first lock body; and a disposable lock seal, wherein at least two conductive parts are provided on the surface of the disposable lock seal, and the conductive parts are electrically connected to the circuit in the disposable lock seal, including a first conductive part and a second conductive part, the first conductive part and the second conductive part are electrically connected to the circuit in the disposable lock seal, the radio frequency IC chip is electrically connected to the circuit of the disposable lock seal and is located between the first conductive part and the second conductive part, and the length dimension a of the conductive part is any value between 0 cm and 200 cm; Wherein, when the disposable lock seal passes through the second lock body and is inserted into the first preset position of the first lock body, the conductive contacts on the two hooks of the first hook conductive member and the second hook conductive member are electrically connected to the first conductive part and the second conductive part respectively, so that the first circuit and the circuit in the disposable lock seal are closed and connected, so that the radio frequency IC chip and the radio frequency antenna are electrically connected, thereby making the radio frequency IC chip readable; Among them, the disposable lock seal is provided with at least one stop structure cooperating with the barb. In the process of the disposable lock seal being reversely withdrawn from the first lock body, at least one side of the barb having the hook groove gradually approaches and abuts against a stop structure, thereby preventing the disposable lock seal from continuing to move backward.

2. The sealing device according to claim 1, characterized in that: A verification circuit is arranged inside the second lock body, the disposable lock seal further comprises a third conductive part and a fourth conductive part, the disposable lock seal further comprises a second circuit and a third circuit, the first conductive part and the third conductive part are connected in series to the second circuit, the second conductive part and the fourth conductive part are connected in series to the third circuit, and the radio frequency IC chip is electrically connected to the second circuit or the third circuit; Among them, when the disposable lock seal passes through the second lock body and is inserted into the first preset position of the first lock body, the third conductive part and the fourth conductive part are electrically connected to the verification circuit and connected in series, so that the first circuit, the second circuit, the third circuit and the verification circuit form a complete closed radio frequency circuit.

3. The sealing device according to claim 2, characterized in that: Each barb conductive member has an elastic function. When the force-bearing inclined surface is subjected to an oblique force, the barb conductive member can bounce up, and when the oblique force is withdrawn, the barb conductive member bounces back to the original position.

4. The sealing device according to claim 3, characterized in that: The surface of the disposable lock seal is concavely provided with at least one sliding groove, each sliding groove can accommodate a barb of a barb conductive member, the conductive part is laid on the inner wall of the sliding groove, and at least one inner wall of at least one sliding groove is constructed with at least one said stop structure.

5. The sealing device according to claim 4, characterized in that: A limiting groove is concavely formed on the bottom wall of the sliding groove, and at least one of the conductive parts is located in one of the limiting grooves; The surface of one side wall of the limiting groove coincides with its orthographic projection on the horizontal plane or is set at an acute angle to form the stop structure. The surface of the side wall is supported by the horizontal force, thereby preventing the barb from continuing to move in the opposite direction.

6. The sealing device according to any one of claims 4 to 5, characterized in that: The locking and sealing device also includes a third barb conductive piece and a fourth barb conductive piece, and two conductive connection ends of the third barb conductive piece and the fourth barb conductive piece are connected in series to the verification circuit. When the disposable lock seal is inserted into the first lock body to the first preset position, the conductive contact surfaces of the third barb conductive piece and the fourth barb conductive piece are electrically connected to the third conductive part and the fourth conductive part respectively.

7. The sealing device according to claim 4, characterized in that: The lock sealing device further comprises a fifth barb conductive piece, the fifth barb conductive piece and the first barb conductive piece are connected in parallel to the first circuit and are arranged side by side and adjacent to each other, and when the disposable lock seal is inserted into the first preset position of the first lock body, the barb of the fifth barb conductive piece is located in the sliding groove adjacent to the first barb conductive piece; And / or, the locking and sealing device also includes a sixth barb conductor, which is connected to the first circuit in parallel with the second barb conductor and is arranged side by side. When the disposable lock seal is inserted into the first preset position of the first lock body, the barb of the sixth barb conductor is located in a sliding groove adjacent to the second barb conductor.

8. The sealing device according to claim 6, characterized in that: The first lock body has a first insertion hole extending therethrough, and the barb part of the barb conductive member located in the first lock body or the whole barb is located in the first insertion hole; the second lock body has a second insertion hole extending therethrough, and the barb part of the barb conductive member located in the second lock body or the whole barb is located in the second insertion hole; The maximum length of one end of the disposable lock seal forming the limiting wing along the width direction of the sliding groove is greater than the maximum size of the first plug hole and the maximum size of the second plug hole; When the second lock body and the first lock body are engaged and connected, the first insertion hole is horizontally connected to the second insertion hole. When the disposable lock seal passes through the second lock body and is inserted into the first preset position of the first lock body, the end of the disposable lock seal away from the limiting wing passes through the second insertion hole and is inserted into the first insertion hole until the limiting wing abuts or approaches or abuts against the opening periphery of the second insertion hole.

9. The sealing device according to claim 1, characterized in that: The barb conductive member comprises a metal body, the barb is formed at one end of the metal body, the metal body is connected to the mounting member in the lock body by elastic connection, and a connecting shaft is configured at the connection point; The metal body is used to connect the mounting piece, and one end surface is covered with a plastic molding layer. At least one connecting column is constructed on the plastic molding layer. A connecting hole is passed through the inside of the connecting column, and a torsion spring is sleeved on the outside. At least one connecting column is sleeved on the connecting shaft, and the connecting shaft is installed on the mounting piece. The barbed conductive piece realizes elastic movement through the torsion spring.

10. The sealing device according to claim 1, characterized in that: The disposable lock seal is in the shape of a plate, or a long strip, or a circle, or a semicircle, or an ellipse, or a cuboid; And / or, the disposable lock seal is further provided with a second circuit, the first conductive part and the second conductive part are electrically connected to the second circuit, and the radio frequency IC chip is electrically connected to the second circuit; When the disposable lock seal is inserted into the first preset position of the first lock body, the first circuit and the second circuit are closed and connected.

11. The sealing device according to claim 3 or 10, characterized in that: Also includes: A circuit board, wherein at least one circuit is provided in the circuit board, one of which is named as a first circuit of the circuit board, and two access ends of the first circuit of the circuit board are exposed on the surface of the circuit board; Among them, when the first barb conductive piece and the second barb conductive piece are not in contact with the disposable lock seal, the two conductive connecting ends of the first barb conductive piece and the second barb conductive piece are respectively in contact with the two access ends of the first circuit of the circuit board to make the first circuit conductive with the first circuit of the circuit board.

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