An anti-shear and anti-tamper electronic lead blockade

Abstract

The present invention provides an anti-shear and anti-dismantling electronic lead lock, which relates to the technical field of lead locks, including a housing and a locking rod. The locking rod can slide and retract relative to the housing along its length direction. A lock buckle is provided on the part to be locked. One end of the locking rod extends out of the housing and forms a bent portion. The bent portion is connected to a lock head. The length direction of the locking rod forms a first angle with the vertical direction. When the locking rod passes through the lock buckle and cooperates with the lock head to lock the part to be locked, a fulcrum is formed because the lock head and the bent portion are in contact with the lock buckle, thereby generating a torque that causes the lead lock as a whole to swing around the fulcrum or have a swinging tendency. When the part to be locked vibrates, the length of the locking rod extending relative to the housing changes, the center of gravity of the lead lock as a whole moves upward or downward, and the magnitude of the torque changes, causing the lead lock as a whole to swing around the fulcrum, thereby changing the first angle, changing the position where the locking rod contacts the lock buckle, making the wear of the locking rod more uniform, and avoiding affecting the reliability of the lead lock structure.

Description

Technical Field

[0001] The invention relates to the technical field of lead locks, in particular to an anti-shear and anti-dismantling electronic lead lock. Background Art

[0002] In the field of railway freight transportation and logistics security, railroad blockades are commonly used to ensure the safety and integrity of goods. Traditional railroad blockades primarily utilize physical lock structures, typically consisting of a lock body, a lock catch, and a penetrating lock rod. The rigidity of the metal and the design of the locking mechanism provide basic physical protection, ensuring unauthorized opening is impossible. With technological advancements, electronic locks have emerged. These locks utilize built-in sensors to monitor the status of the lock rod (anti-shearing) and the lock body (anti-disassembly) in real time. Upon detecting unauthorized damage or disassembly, the device uses a built-in GPRS wireless communication module to immediately send an alert to a remote management system. Furthermore, these electronic locks often incorporate location tracking capabilities, allowing system platforms to query or track the device's location in real time, providing a more proactive and intelligent means of monitoring cargo in transit.

[0003] The existing railway lead lock is subjected to continuous vibration during use, while the position where the locking rod contacts the lock buckle remains unchanged, which easily causes the locking rod to wear, thereby affecting the reliability of the lead lock structure.

[0004] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Summary of the Invention

[0005] Based on this, it is necessary to provide an anti-shear and anti-dismantling electronic lead blockade to address the problems existing in the current lead blockade.

[0006] The above purpose is achieved through the following technical solutions:

[0007] An anti-shear and anti-dismantling electronic lead lock comprises a shell and a locking rod, wherein the locking rod can slide and retract relative to the shell along its length direction, a lock buckle is provided on the part to be locked, one end of the locking rod extends out of the shell and forms a bent portion, and the bent portion is connected to a lock head, and when the locking rod passes through the lock buckle to lock the part to be locked, the lock head and the bent portion are in contact with the lock buckle so that the length direction of the locking rod forms a first angle with the vertical direction; when the part to be locked vibrates, the extended length of the locking rod relative to the shell changes, and the shell and the locking rod swing together to change the first angle.

[0008] Furthermore, it also includes a sensing module, which is used to detect a first amplitude of vibration generated by the part to be locked. When the first amplitude is less than a preset value, the locking rod extends or retracts relative to the shell; when the first amplitude is greater than or equal to the preset value, the locking rod retracts relative to the shell.

[0009] Furthermore, a screw is rotatably provided in the housing, the length direction of the screw is parallel to the length direction of the locking rod, and the screw is rotated to enable the locking rod to slide and retract relative to the housing.

[0010] Furthermore, the locking rod is made of a heat-conducting material.

[0011] Furthermore, the locking rod is sealingly and slidingly connected to the housing, and a sealed first chamber is formed in the housing.

[0012] Furthermore, the other end of the locking rod extends into the housing and is provided with a piston plate, and the piston plate slides along the length direction of the locking rod with the locking rod to circulate the air in the first chamber.

[0013] Furthermore, an intermediate component is provided in the shell, and a second chamber connected to the first chamber is formed in the intermediate component. The other end of the locking rod extends into the second chamber, and the piston plate sliding seal is arranged in the second chamber to allow the air in the second chamber to circulate with the air in the first chamber.

[0014] Furthermore, two through holes for connecting the first chamber and the second chamber are opened on the side of the intermediate component, and the two through holes are respectively located on both sides of the piston plate.

[0015] Furthermore, two through holes are provided on both sides of the intermediate component, and a one-way valve is provided on the intermediate component to be connected with the corresponding through holes. The two one-way valves located on the same side of the intermediate component allow flow in opposite directions.

[0016] The beneficial effects of the present invention are as follows: when the locking rod of the present invention passes through the lock buckle and cooperates with the lock head to lock the component to be locked, a fulcrum is formed because the lock head and the bent portion are in contact with the lock buckle, thereby forming a torque that causes the lead lock block as a whole to swing around the fulcrum or have a swinging tendency. When the component to be locked vibrates, the length of the locking rod extended relative to the shell changes, the center of gravity of the lead lock block as a whole moves upward or downward, the magnitude of the torque changes, causing the lead lock block as a whole to swing around the fulcrum, thereby changing the first angle, changing the position where the locking rod contacts the lock buckle, making the wear of the locking rod more uniform, and avoiding affecting the reliability of the lead lock block structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A schematic structural diagram of an anti-shear and anti-tamper electronic lead lock provided in an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the use of the anti-shear and anti-tamper electronic lead lock;

[0019] Figure 3 for Figure 2 Another state diagram of ;

[0020] Figure 4 for Figure 1 Top view of the middle anti-shear and anti-tamper electronic lead blockade;

[0021] Figure 5 for Figure 4 Cross-sectional view of the AA direction of the anti-shear and anti-tamper electronic lead lock;

[0022] Figure 6 for Figure 1 Schematic diagram of the structure of the anti-shear and anti-tamper electronic lead lock after removing the shell;

[0023] Figure 7 for Figure 6 Front view of .

[0024] in:

[0025] 100, housing; 101, locking rod; 102, lock catch; 103, bending portion; 104, lock head; 105, battery; 106, circuit board; 107, sensor assembly; 108, anti-shear sensor; 109, wire;

[0026] 201. Screw; 202. First chamber; 203. Piston plate; 204. Intermediate component; 205. Second chamber; 206. Motor; 207. Through hole; 208. One-way valve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0029] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] like Figures 1 to 7 As shown, an embodiment of the present invention provides an anti-shear and anti-dismantling electronic lead lock (hereinafter referred to as the lead lock), including a shell 100 and a locking rod 101. The locking rod 101 can slide and retract relative to the shell 100 along its length direction. A lock buckle 102 is provided on the part to be locked. One end of the locking rod 101 extends out of the shell 100 and is formed with a bent portion 103. The bent portion 103 is connected to a lock head 104. When the locking rod 101 passes through the lock buckle 102 to lock the part to be locked, the lock head 104 and the bent portion 103 are in contact with the lock buckle 102, so that the length direction of the locking rod 101 forms a first angle with the vertical direction; when the part to be locked vibrates, the extended length of the locking rod 101 relative to the shell 100 changes, and the shell 100 and the locking rod 101 swing together to change the first angle.

[0031] When the locking rod 101 passes through the lock buckle 102 and cooperates with the lock head 104 to lock the part to be locked, the lock head 104 and the bent portion 103 are in contact with the lock buckle 102 to form a fulcrum, thereby generating a torque that causes the lead lock to swing around the fulcrum or have a swinging tendency. When the part to be locked vibrates, the length of the locking rod 101 extending relative to the shell 100 changes, the center of gravity of the lead lock moves upward or downward, the torque changes, and the lead lock swings around the fulcrum, thereby changing the first angle and the position where the locking rod 101 contacts the lock buckle 102, so that the wear of the locking rod 101 is more uniform, avoiding affecting the reliability of the lead lock structure.

[0032] The lock head 104 contacts the lock buckle 102 to form a first fulcrum, while the bent portion 103 contacts the lock buckle 102 to form a second fulcrum. The weight of the entire lead lock primarily acts on the first fulcrum. It can be understood that the line connecting the first fulcrum and the center of gravity of the lead lock is the lever arm. The weight of the entire lead lock can be divided into a first component along the lever arm and a second component perpendicular to the lever arm. The torque generated by the second component can cause the entire lead lock to swing around the fulcrum or have a tendency to swing. Figure 2 In the case of , the direction of the force arm is along the direction of gravity, so the overall force of the lead blockade is balanced; Figure 2 In the state, when the locking rod 101 is retracted relative to the housing 100, the center of gravity of the lead lock as a whole moves upward, and the moment corresponding to the second component force increases, so that the lead lock as a whole can swing around the fulcrum, such as Figure 3 When the locking rod 101 is extended relative to the housing 100, the center of gravity of the lead lock moves downward, the torque corresponding to the second component of force decreases, and the lead lock as a whole swings in the opposite direction around the fulcrum under the action of its own gravity.

[0033] In one embodiment, the anti-shear and anti-dismantling electronic lead lock further includes a sensing module, which is used to detect a first amplitude of vibration generated by the locked component. When the first amplitude is less than a preset value, the locking rod 101 extends or retracts relative to the shell 100. When the first amplitude is greater than or equal to the preset value, the locking rod 101 retracts relative to the shell 100.

[0034] When the vibration amplitude of the part to be locked is small, the locking rod 101 is controlled to extend and retract back and forth to frequently change the position where the locking rod 101 contacts the lock buckle 102; when the vibration amplitude of the part to be locked is large, the locking rod 101 is directly controlled to retract to reduce the shaking amplitude of the shell 100 and reduce the probability of damage to the internal structure of the shell 100.

[0035] The sensing module can be one of the following devices: a displacement sensor, an accelerometer, a velocity sensor, etc., to obtain the amplitude of the component to be locked in real time. The working principles of the above devices are all existing technologies and will not be elaborated here.

[0036] In one embodiment, a screw rod 201 is rotatably provided in the housing 100 , and the length direction of the screw rod 201 is parallel to the length direction of the locking rod 101 . The screw rod 201 rotates to allow the locking rod 101 to slide and retract relative to the housing 100 .

[0037] When the screw 201 stops rotating, the telescopic length of the locking rod 101 can be locked, thereby ensuring the overall structural reliability of the lead lock.

[0038] In one embodiment, the locking bar 101 is made of a heat-conducting material.

[0039] When the locking rod 101 is extended or retracted relative to the housing 100 , the heat in the housing 100 can be conducted to the outside, thereby dissipating heat from the housing 100 .

[0040] The housing 100 is made of ABS material. The locking rod 101 is made of Q235A material and is galvanized, so it has a heat-conducting effect. Of course, the housing 100 and the locking rod 101 can also be made of other materials, which is not limited here.

[0041] In one embodiment, the locking rod 101 is in sealed sliding connection with the housing 100, and a sealed first chamber 202 is formed within the housing 100, ensuring the sealed space within the housing 100 and the waterproof and dustproof properties of the housing 100. Furthermore, during operation, the temperature within the first chamber 202 increases, causing the air contained therein to expand, resulting in a pressure differential between the inside and outside of the housing 100 and increasing the risk of seal leakage. When the locking rod 101 is extended relative to the housing 100, the volume of the first chamber 202 increases, reducing the air pressure within the first chamber 202 and thus ensuring the sealing effect of the housing 100.

[0042] The housing 100 may be composed of two half shells connected by a sealing ring and bolts, which facilitates the removal and assembly of electronic components and ensures a sealed internal environment. The housing 100 is also provided with a sealing ring corresponding to the locking rod 101 to ensure a seal when the locking rod 101 slides.

[0043] In one embodiment, the other end of the locking rod 101 extends into the shell 100 and is provided with a piston plate 203. The piston plate 203 slides along the length direction of the locking rod 101 to circulate the air in the first chamber 202, thereby improving the heat dissipation effect of the shell 100.

[0044] Among them, a locking mechanism is provided between one end of the locking rod 101 and the lock head 104 to connect the two. The structure of the locking mechanism can refer to the physical lock structure in the prior art and will not be described here.

[0045] In one embodiment, an intermediate component 204 is provided in the shell 100, and a second chamber 205 connected to the first chamber 202 is formed in the intermediate component 204. The other end of the locking rod 101 extends into the second chamber 205, and the piston plate 203 is slidingly sealed in the second chamber 205 to allow the air in the second chamber 205 to circulate with the air in the first chamber 202.

[0046] The air in the first chamber 202 contacts the electronic components, and the air in the second chamber 205 contacts the locking rod 101 with a heat-conducting function. The locking rod 101 drives the piston plate 203 to move back and forth, so that the air in the second chamber 205 and the air in the first chamber 202 circulate to dissipate heat from the electronic components in the shell 100.

[0047] The housing 100 is equipped with a motor 206 and a corresponding battery 105 and controller to control start and stop. The output end of the motor 206 is fixed to the screw 201. Two motors 206 and two screws 201 are provided. Both screws 201 extend into the second chamber 205 and are threadedly connected to the piston plate 203. The rotation of the screws 201 drives the movement of the piston plate 203. A sealing ring is provided at the contact point between the piston plate 203 and the intermediate component 204 to ensure the sealed sliding of the piston plate 203 within the second chamber 205, while also dividing the second chamber 205 into two parts.

[0048] In one embodiment, two through holes 207 for connecting the first chamber 202 and the second chamber 205 are defined on the side of the middle component 204 . The two through holes 207 are located on both sides of the piston plate 203 .

[0049] When the locking rod 101 drives the piston plate 203 to move, air circulation is achieved on both sides of the piston plate 203 through the two through holes 207 , that is, the air in the second chamber 205 and the air in the first chamber 202 circulate.

[0050] In one embodiment, two through holes 207 are provided on both sides of the middle component 204, and a one-way valve 208 is provided on the middle component 204 to be connected to the corresponding through holes 207. The two one-way valves 208 located on the same side of the middle component 204 allow flow in opposite directions to dissipate heat for the electronic components on both sides of the middle component 204.

[0051] Among them, a circuit board 106 and a sensor assembly 107 are provided on one side of the middle component 204, and a battery 105 is provided on the other side of the middle component 204 for powering electrical equipment. The above electronic components may generate heat during use, so they need to be cooled.

[0052] See also Figure 5 、 Figure 7, the one-way valve 208 on the lower left allows for flow from right to left. When the screw 201 drives the piston plate 203 to move to the left, the two one-way valves 208 on the lower side close, and the gas on the left side of the piston plate 203 is discharged from the one-way valve 208 on the upper left side, flows through the circuit board 106, the sensor assembly 107 and the housing 100, and then flows into the second chamber 205 on the right side of the piston plate 203, and then contacts the lock rod 101 for heat conduction. Figure 5 、 Figure 7 Similarly, when the screw 201 drives the piston plate 203 to move to the right, the two one-way valves 208 above are closed, and the gas on the right side of the piston plate 203 is discharged from the one-way valve 208 on the lower right side, flows through the battery 105 and the housing 100, and then flows out of the one-way valve 208 on the lower left side, flows into the second chamber 205 on the left side of the piston plate 203, and then contacts the locking rod 101 for heat conduction, see Figure 5 、 Figure 7 Path b in .

[0053] In one embodiment, an anti-shear sensor 108 is provided in the locking bar 101 .

[0054] The anti-shear sensor 108 extends through the locking rod 101 into the second chamber 205 and is connected to a wire 109. The wire 109 passes through the intermediate component 204 and the circuit board 106 and is connected to the sensor assembly 107. The housing 100 is also equipped with an anti-disassembly sensor and a processor. When it detects that the locking rod 101 has been cut or the housing 100 has been disassembled, the processor generates an alarm signal and sends it to the client to prompt it to prevent the loss of goods. The housing 100 is also equipped with a positioning module. The processor transmits the location of the device to the server in real time for storage. When the battery 105 is low on power, the processor generates an alarm signal and sends it to the client to prompt it. The battery 105 then enters a dormant state and needs to be activated before it can be used again.

[0055] When the present invention is in use, the locking rod 101 is passed through the lock buckle 102 and cooperates with the lock head 104 to lock the part to be locked. Since the lock head 104 and the bent portion 103 are in contact with the lock buckle 102 to form a fulcrum, a torque is generated to make the lead lock block as a whole swing around the fulcrum or have a swinging tendency. When the part to be locked vibrates, the screw 201 drives the locking rod 101 to extend and retract relative to the shell 100, and the center of gravity of the lead lock block as a whole moves upward or downward, and the magnitude of the torque changes, causing the lead lock block as a whole to swing around the fulcrum, thereby changing the first angle and the position where the locking rod 101 contacts the lock buckle 102, so that the wear of the locking rod 101 is more uniform, avoiding affecting the reliability of the lead lock block structure. Specifically, when the vibration amplitude of the component to be locked is small, the locking rod 101 is controlled to reciprocate and extend, frequently changing the position where the locking rod 101 contacts the lock catch 102. When the vibration amplitude of the component to be locked is large, the locking rod 101 is directly controlled to retract, thereby reducing the shaking amplitude of the housing 100 and reducing the probability of damage to the internal structure of the housing 100. In addition, the locking rod 101 drives the piston plate 203 to move, and the piston plate 203 causes the air in the housing 100 to circulate. The locking rod 101 then dissipates the heat in the housing 100 to the outside, dissipating the heat from the housing 100 and ensuring the sealing effect of the housing 100.

[0056] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An anti-shear and anti-tamper electronic lead lock, characterized in that: The lock rod comprises a shell and a locking rod, wherein the locking rod can slide and retract relative to the shell along its length direction, a lock catch is provided on the part to be locked, one end of the locking rod extends out of the shell and forms a bent portion, and the bent portion is connected to a lock head. When the locking rod passes through the lock catch to lock the part to be locked, the lock head and the bent portion are in contact with the lock catch so that the length direction of the locking rod forms a first angle with the vertical direction; when the part to be locked vibrates, the extended length of the locking rod relative to the shell changes, and the shell and the locking rod swing together to change the first angle.

2. The anti-shear and anti-tamper electronic lead lock according to claim 1 is characterized in that: It also includes a sensing module, which is used to detect a first amplitude of vibration generated by the part to be locked. When the first amplitude is less than a preset value, the locking rod extends or retracts relative to the shell. When the first amplitude is greater than or equal to the preset value, the locking rod retracts relative to the shell.

3. The anti-shear and anti-tamper electronic lead lock according to claim 1 is characterized in that: A screw is rotatably provided in the housing, and the length direction of the screw is parallel to the length direction of the locking rod. The screw is rotated to enable the locking rod to slide and retract relative to the housing.

4. The anti-shear and anti-tamper electronic lead lock according to any one of claims 1 to 3, characterized in that: The locking rod is made of heat-conducting material.

5. The anti-shear and anti-tamper electronic lead lock according to claim 4 is characterized in that: The locking rod is sealingly and slidingly connected to the housing, and a sealed first chamber is formed in the housing.

6. The anti-shear and anti-tamper electronic lead lock according to claim 5 is characterized in that: The other end of the locking rod extends into the housing and is provided with a piston plate. The piston plate slides along the length direction of the locking rod with the locking rod to circulate the air in the first chamber.

7. The anti-shear and anti-tamper electronic lead lock according to claim 6 is characterized in that: An intermediate component is provided in the shell, and a second chamber connected to the first chamber is formed in the intermediate component. The other end of the locking rod extends into the second chamber, and the piston plate sliding seal is arranged in the second chamber to allow the air in the second chamber to circulate with the air in the first chamber.

8. The anti-shear and anti-tamper electronic lead lock according to claim 7 is characterized in that: Two through holes for connecting the first chamber and the second chamber are formed on the side of the intermediate component, and the two through holes are respectively located on both sides of the piston plate.

9. The anti-shear and anti-tamper electronic lead lock according to claim 8, characterized in that: Two through holes are provided on both sides of the intermediate component. A one-way valve is provided on the intermediate component and can be connected to the through holes. The two one-way valves on the same side of the intermediate component allow flow in opposite directions.

10. The anti-shear and anti-tamper electronic lead lock according to claim 1, characterized in that: An anti-shear sensor is provided in the locking rod.

Images