CN108320364A - A kind of GPS Intelligent logistics padlock - Google Patents

Abstract

The invention discloses a GPS intelligent logistics padlock, which comprises a lock hook and a padlock box body. The lock hook includes a bridged first lock bar and a second lock bar. A position chamber and a locking chamber for fixing the second lock rod, the locking chamber is a two-stage structure, the locking chamber includes an upper locking chamber and a lower locking chamber, and the lower locking chamber The side of the cavity is provided with a through hole; the end of the second locking rod is provided with a spherical groove; the padlock box is provided with a transmission device for fixing the second locking rod through the spherical groove and a GSP positioning function The control device is provided with an indicator light and a card reader on the outer wall of the padlock box, and the control device is connected with the transmission device, the indicator light and the card reader respectively. The invention can effectively eliminate the interference of the external magnetic field, avoid the false lock phenomenon, and improve the data interaction and intelligence of the lock.

Description

A GPS intelligent logistics padlock

technical field

The invention relates to a lockset, more specifically to a GPS intelligent logistics padlock.

Background technique

With the country's economic construction and development, the logistics industry has become increasingly prosperous. It is almost impossible to calculate the amount of logistics lost each year due to goods being stolen, package dropped, and smuggled. In the field of logistics and transportation, more and more attention is paid to the safety of goods in transit. Ordinary mechanical locks are complex in structure, easy to be demolished, low in safety and reliability, and easy to copy keys, which will bring great security risks to the property safety of the company and customers. At the same time, the development of the Internet has brought challenges to logistics technology. In order to quickly and accurately deliver goods to their destinations, more and more logistics companies use electronic locks with GPS positioning functions to ensure the safety of goods.

GPS electronic lock is an electronic product that controls the operation of circuits or chips through password input or magnetic card identification, thereby controlling the closing of mechanical switches and completing the tasks of unlocking and locking. At the same time, the location information is sent to the remote terminal in real time through the built-in GPS chip, realizing the function of location monitoring. Therefore, compared with mechanical locks, GPS electronic locks have made great progress in terms of safety and functionality.

However, the existing GPS electronic locks generally monitor the unlocking and locking action of the internal mechanical switch through electronic induction. If an error signal is generated due to external artificial magnetic field interference, even if the internal locking structure is not fully closed, it will still be mistaken for the locking action. There is a false lock phenomenon. The built-in GPS chip can only provide the real-time location of the lock to the remote terminal, and cannot monitor the opening action and position of the lock for multiple openings in the logistics process, and there are certain deficiencies in the data interaction with the remote terminal. In addition, when the lock unit is in use, it needs to be equipped with a special person to swipe the card or enter the password to unlock it, and the operating cost is high.

Contents of the invention

In view of the above-mentioned defects, the object of the present invention is to provide a GPS intelligent logistics padlock, which uses a travel switch to control the movement track of the mechanical part, which can effectively eliminate the interference of the external magnetic field and avoid the occurrence of false locks; the internal use of a single-chip microcomputer improves the lock. The degree of data interactivity and intelligence.

In order to achieve the above object, the present invention is achieved through the following technical solutions: a GPS intelligent logistics padlock, including a lock hook and a padlock box, the lock hook includes a bridged first lock bar and a second lock bar, and the top of the padlock box is provided There is a limiting cavity for inserting the first locking rod and a locking cavity for fixing the second locking rod, which is characterized in that: the locking cavity is a two-stage structure, and the locking cavity includes an upper locking The side of the lower locking chamber is provided with a through hole; the end of the second locking rod is provided with a spherical groove; the padlock box is provided with a spherical groove for fixing The transmission device of the second lock bar and the control device with GSP positioning function, an indicator light and a card reader are arranged on the outer wall of the padlock box, and the control device is connected with the transmission device, the indicator light and the card reader respectively.

Further, the transmission device includes: a motor, a rack and a ball guide rod matched with a spherical groove; the motor is fixed on the inner wall of the padlock box, and the output shaft of the motor is provided with a drive for driving the longitudinal movement of the rack. gear, the drive gear meshes with the rack; a guide rod cavity coaxial with the through hole is provided below the motor, the guide rod cavity is fixed on the inner wall of the padlock box, the ball head guide rod is arranged in the guide rod cavity, and the ball The head guide rod can be inserted into the spherical groove after passing through the through hole; the side of the guide rod cavity is provided with an orientation groove; the orientation groove is provided with an orientation for preventing the ball head guide rod from sliding out of the guide rod cavity. Protrusion, the directional protrusion is fixed on the end of the ball guide rod, and the ball guide rod is covered with a return spring, the inner diameter of the return spring is larger than the inner diameter of the guide rod cavity; the ball guide rod is provided with a function to prevent the return spring from guiding the ball A circlip for the rod head to slide; the outer wall of the padlock box is provided with a first travel switch and a second travel switch for limiting the longitudinal movement distance of the rack, and the orientation groove is provided with a travel switch for limiting the lateral movement of the ball guide rod. Third travel switch for distance.

Further, the control device includes a single-chip microcomputer, a battery, a GPS module and a wireless communication module; the single-chip microcomputer is connected with the battery, the GPS module, the wireless communication module, a motor, the first travel switch, the second travel switch, the third travel switch, the card reader and the LED connection.

Further, a charging interface is provided on the padlock box, and the charging interface is connected to the battery.

Further, on the inner wall of the padlock box on the side of the driving gear of the motor, a baffle plate for preventing the rack from being separated from the driving gear of the motor is provided.

Further, the wireless communication module is a 4G communication module.

Further, the first travel switch and the second travel switch are sequentially fixed on the inner wall of the padlock box along the long side of the baffle, the first travel switch is used to limit the end point of the upward movement of the rack, and the second travel switch is used to limit the downward movement of the rack. end point.

Further, a limiting protrusion for preventing the second locking rod from coming out is provided between the upper locking chamber and the lower locking chamber, and the limiting protrusion is fixed on the second locking rod.

Further, the length of the second locking bar is greater than that of the first locking bar.

Further, an O-ring is provided in the upper locking cavity.

Compared with the prior art, the beneficial effect of the present invention is that the GPS intelligent logistics padlock provided by the present invention drives the ball guide rod to insert into the spherical groove through the return spring, and the motor drives the rack to move longitudinally to limit the position of the ball guide rod. Transverse movement realizes the locking function of the present invention. The padlock box is equipped with a limit switch for monitoring the movement track of each transmission part. The single-chip microcomputer is used to connect with the motor and the limit switch respectively, which realizes the automatic identification and confirmation of the unlocked and locked state, effectively eliminates the interference of the external magnetic field, and avoids false locks. occurrence of the phenomenon. The single-row machine is also respectively connected with a battery, a GPS module, a wireless communication module, a card reader and an indicator light, which can send location information and unlock/lock status information to the remote terminal in real time, and realize the remote control of the unlock/lock action of the present invention ;In addition, it is also possible to manually identify the unlocking/locking state by observing the indicator light, and realize manual unlocking/locking by swiping the card. There is also a charging interface on the padlock box, which avoids the shutdown of electrical devices caused by power loss, and improves the stability of the present invention; an O-ring is provided in the upper locking cavity, which effectively solves the problem of the padlock box. Waterproof problem.

Description of drawings

Figure 1 is a front view of the present invention.

Fig. 2 is a structural schematic diagram of the locking state of the present invention.

Fig. 3 is a structural schematic diagram of the unlocked state of the present invention.

Figure 4 is an electrical block diagram of the present invention.

In the figure, 1 is a lock hook, 11 is a first lock bar, 12 is a second lock bar, 13 is a limit protrusion, 14 is a spherical groove, 2 is a padlock box, 21 is a first travel switch, 22 is a The second travel switch, 23 is the third travel switch, 3 is a limit cavity, 4 is a locking cavity, 41 is an upper locking cavity, 42 is a lower locking cavity, 43 is a through hole, and 44 is a locking cavity. O-ring, 5 is the transmission device, 51 is the motor, 52 is the rack, 53 is the baffle, 54 is the ball guide rod, 55 is the guide rod cavity, 56 is the directional groove, 57 is the directional protrusion, 58 is Circlip, 59 is a back-moving spring, 6 is a control device, 7 is an indicator light, 8 is a card reader, and 9 is a charging interface.

Detailed ways

Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

A GPS intelligent logistics padlock shown in Figure 1, Figure 2 and Figure 3, a GPS intelligent logistics padlock, includes a lock hook 1 and a padlock box 2, and the lock hook 1 includes a bridging first lock bar 11 and a second lock bar. Locking bar 12, the length of the second locking bar 12 is greater than the first locking bar 11; The cavity 4, the locking cavity 4 is a two-stage structure, the locking cavity 4 includes an upper locking cavity 41 and a lower locking cavity 42, the upper locking cavity 41 is provided with an O-ring 44 , the side of the lower lock chamber 42 is provided with a through hole 43, and between the upper lock chamber 41 and the lower lock chamber 42 is provided with a limit projection 13 for preventing the second lock bar 12 from coming out. Lifting 13 is fixed on the second locking rod 12; The end of described second locking rod 12 is provided with spherical groove 14; Described padlock box 2 is provided with for fixing second locking rod 12 by spherical groove 14 The transmission device 5 and the control device 6 with GSP positioning function, the outer wall of the padlock box 2 are provided with an indicator light 7 and a card reader 8, and the control device 6 is connected with the transmission device 5, the indicator light 7 and the card reader 8 respectively.

Transmission device 5 comprises: motor 51, rack 52, baffle plate 53 and the ball guide rod 54 that matches with spherical groove 14; Described motor 51 is fixed on the inner wall of padlock casing 2, and the output shaft of motor 51 is provided with The drive gear that drives the rack 52 longitudinally moves, and the drive gear meshes with the rack 52; the baffle plate 53 is fixed on the inner wall of the padlock housing 2 on one side of the drive gear of the motor 51, and is used to prevent the rack 52 from contacting the drive gear of the motor 51. separate; the bottom of the motor 51 is provided with a guide rod cavity 55 coaxial with the through hole 43, the guide rod cavity 55 is fixed on the inwall of the padlock casing 2, and the ball guide rod 54 is located in the guide rod cavity 55, and the ball The head guide rod 54 can be inserted in the spherical groove 14 after passing through the through hole 43; the side portion of the guide rod cavity 55 is provided with an orientation groove 56; The orientation protrusion 57 that slides out in the rod cavity 55, the orientation protrusion 57 is fixed on the afterbody of the ball guide rod 54, the ball guide rod 54 is covered with a reset spring 59, and the inner diameter of the reset spring 59 is greater than the inner diameter of the guide rod cavity 55; The ball guide rod 54 is provided with a retaining spring 58 for preventing the back-moving spring 59 from sliding to the head of the ball guide rod 54; The first travel switch 21 for the upward end point and the second travel switch 22 for defining the downward end point of the rack 52. The orientation groove 56 is provided with a third travel switch 23 for limiting the lateral movement distance of the ball guide rod 54.

As shown in Figure 4, control device 6 comprises single-chip microcomputer, battery, GPS module and wireless communication module, and described wireless communication module is 4G communication module, and single-chip microcomputer is connected with battery, GPS module, 4G communication module, motor 51, the first travel switch respectively. 21. The second travel switch 22, the third travel switch 23, the card reader 8 and the indicator light 7 are connected. In addition, the padlock box 2 is provided with a charging interface 9, and the charging interface 9 is connected to the battery.

The working principle of the present invention is as follows.

Locking working principle: in combination with Figure 2, when the first locking rod 11 is inserted into the limiting cavity 3, the locking hook 1 is closed in place, and the ball head guide rod 54 enters the spherical groove 14 under the push of the return spring 59, and at the same time, the ball The directional protrusion 57 on the head guide rod 54 triggers the third travel switch 23, and the third travel switch 23 sends a signal in place to the single-chip microcomputer. At this point, the microcontroller waits for the lock command to trigger the next action.

There are two ways to issue lockout commands: manual and remote.

The manual method is: manually use a magnetic card to swipe the card in the sensing area of the card reader 8, and the card reader 8 transmits the locking instruction to the single-chip microcomputer.

The remote method is as follows: after the single-chip microcomputer receives the in-position signal of the third travel switch 23, the GPS position information and the in-position signal are transmitted to the remote terminal through the 4G communication module, and after the remote terminal receives the above information, it issues a locking command to the single-chip microcomputer.

The single-chip microcomputer controls the operation of the motor 51 after receiving the manual or remote locking command, and the motor 51 drives the rack 52 to move downward. After the rack 52 moves in place, the limit of the ball guide rod 54 is completed, and the second stroke is triggered at the same time. Switch 22, the single-chip microcomputer controls motor 51 to stop running after receiving the arrival signal of the second travel switch 22. After the in-position signals of the second travel switch 22 and the third travel switch 23 are triggered simultaneously, the single-chip microcomputer starts the corresponding signal lamp 7, and transmits data to the remote terminal through the 4G communication module, and the remote terminal monitors the state of the padlock through data analysis and records the locking position information.

Working principle of unlocking: in combination with Fig. 3, in the locked state, manually swiping the card sends an unlocking instruction to the single-chip microcomputer through the card reader 8 or the remote terminal sends the unlocking instruction to the single-chip microcomputer through the 4G communication module. After the single-chip microcomputer receives the unlocking instruction, it controls the motor 51 to run, The motor 51 drives the rack 52 to move upwards. After the rack 52 moves to the position, the limit to the ball guide rod 54 is released, and the first travel switch 21 is triggered at the same time. The single-chip microcomputer controls the motor 51 after receiving the arrival signal of the first travel switch 21 Stop running, and start the corresponding signal light 7 simultaneously. At this time, the ball guide rod 54 is in a free state to the left. When the lock hook 1 is pulled out upwards, the spherical groove 14 on the second locking rod 12 squeezes the ball guide rod 54 to move left, and the third stroke switch 23 It is in the non-triggering state and sends a release signal to the single-chip microcomputer. After the single-chip microcomputer receives the in-position signal of the first travel switch and the release signal of the third travel switch, it starts the corresponding signal light 7 and transmits data to the remote terminal through the 4G communication module. The remote terminal Monitor the status of the padlock and record the unlock position information through data analysis.

The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined in the present application.

Claims (10)

1. A GPS intelligent logistics padlock, including a lock hook (1) and a padlock box (2), the lock hook (1) includes a bridging first lock bar (11) and a second lock bar (12), the padlock The top of the box body (2) is provided with a limiting cavity (3) for inserting the first locking rod (11) and a locking cavity (4) for fixing the second locking rod (12), characterized in that: The locking chamber (4) is a two-stage structure, the locking chamber (4) includes an upper locking chamber (41) and a lower locking chamber (42), and the side of the lower locking chamber (42) A through hole (43) is provided; the end of the second locking rod (12) is provided with a spherical groove (14); The padlock box (2) is provided with a transmission device (5) for fixing the second locking rod (12) through a spherical groove (14) and a control device (6) with a GSP positioning function. The padlock box (2 ) is provided with an indicator light (7) and a card reader (8) on the outer wall, and the control device (6) is respectively connected with the transmission device (5), the indicator light (7) and the card reader (8). 2. The GPS intelligent logistics padlock according to claim 1, characterized in that, the transmission device (5) includes: a motor (51), a rack (52) and a ball guide that matches the spherical groove (14) rod(54); The motor (51) is fixed on the inner wall of the padlock box (2), the output shaft of the motor (51) is provided with a driving gear for driving the longitudinal movement of the rack (52), and the driving gear meshes with the rack (52); The bottom of the motor (51) is provided with a guide rod cavity (55) coaxial with the through hole (43), the guide rod cavity (55) is fixed on the inner wall of the padlock box (2), and the ball head guide rod (54 ) is located in the guide rod cavity (55), and the ball guide rod (54) can be inserted into the spherical groove (14) after passing through the through hole (43); The side of the guide rod cavity (55) is provided with an orientation groove (56); the orientation groove (56) is provided with an orientation guide for preventing the ball head guide rod (54) from slipping out of the guide rod cavity (55). Protrusion (57), directional protrusion (57) is fixed on ball end guide rod (54) afterbody, and return spring (59) is set on the ball end guide rod (54), and the internal diameter of return spring (59) is greater than guide rod row cavity The inner diameter of (55); the ball guide rod (54) is provided with a snap ring (58) for preventing the return spring (59) from sliding to the head of the ball guide rod (54); The inner wall of the padlock box (2) is provided with a first travel switch (21) and a second travel switch (22) for limiting the longitudinal movement distance of the rack (52), and the orientation groove (56) is provided with There is a third travel switch (23) for limiting the lateral movement distance of the ball joint rod (54). 3. The GPS intelligent logistics padlock according to claim 2, characterized in that: the control device (6) includes a single-chip microcomputer, a battery, a GPS module and a wireless communication module, and the single-chip microcomputer is connected with the battery, the GPS module, the wireless communication module, and the motor respectively. (51), the first travel switch (21), the second travel switch (22), the third travel switch (23), the card reader (8) and the indicator light (7). 4. The GPS intelligent logistics padlock according to claim 2, characterized in that: on the inner wall of the padlock box (2) on the side of the drive gear of the motor (51), there is a device for preventing the rack (52) from contacting the motor ( 51) The drive gear separates the bezel (53). 5. The GPS intelligent logistics padlock according to claim 3, characterized in that: the padlock box (2) is provided with a charging interface (9), and the charging interface (9) is connected to the battery. 6. The GPS intelligent logistics padlock according to claim 3, wherein the wireless communication module is a 4G communication module. 7. The GPS intelligent logistics padlock according to claim 4, characterized in that: the first travel switch (21) and the second travel switch (22) are sequentially fixed on the padlock box along the long side of the baffle (53) On the inner wall of (2), the first travel switch (21) is used to limit the end point of the rack (52) going up, and the second travel switch (22) is used to limit the end point of the rack (52) going down. 8. The GPS intelligent logistics padlock according to claim 1, characterized in that: between the upper locking chamber (41) and the lower locking chamber (42) is provided a second locking rod (12) for preventing The protruded limit protrusion (13) is fixed on the second lock bar (12). 9. The GPS intelligent logistics padlock according to claim 1, characterized in that: the length of the second locking rod (12) is greater than that of the first locking rod (11). 10. The GPS intelligent logistics padlock according to claim 1, characterized in that: an O-ring (44) is provided in the upper locking chamber (41).