Anti-forcible-entry structure of seal

Abstract

The utility model discloses a forcible entry prevention structure for a seal, which belongs to the technical field of electronic seals and comprises a lock seat and a lock rod, and a push rod motor is mounted in the lock seat. The lock rod is arranged at the top of the lock seat and comprises a connecting rod and a lock block connected to the top end of the connecting rod, and the connecting rod penetrates through the two locked rings and is driven by the push rod motor to move downwards to the lock block to press the locked rings, so that the connecting rod is contained in a lock hole formed in the upper surface of the lock seat and the locked rings. According to the utility model, the connecting rod is comprehensively protected through the inner hole of the locked ring and the lock hole, so that the connecting rod cannot be damaged from the outside, meanwhile, the middle part of the lock block is pressed on the locked ring, and the connecting rod penetrates through the locked ring, therefore, the lock rod cannot be opened at one time no matter which position of the lock block is damaged, and the lock rod cannot be unlocked at the same time. After the lock rod locks the locked ring, the lock rod is difficult to cut off or saw off from the outside, so that the probability that the lock rod is illegally opened is obviously reduced, and the safety performance is obviously improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic seals, and in particular relates to a seal anti-disassembly structure. Background Art

[0002] In recent years, with the rapid development of the logistics industry, traditional mechanical locks can no longer meet the current logistics needs. Therefore, electronic seals came into being.

[0003] There are many types of electronic seals, and for some cargo boxes, electronic seals similar to traditional locks are usually used for locking, such as Figure 1 The figure shows a commonly used electronic signature lock, which includes a lock base 1 and a lock rod 2. In addition to the lock tongue and the driving component that drives the lock tongue to lock or open, the lock base 1 also integrates the control module, RFID chip and antenna and other electronic signature seal structures. The current electronic signature lock usually locks the cargo box by moving the two locked rings 3 on the cargo box to the position shown in the figure. Figure 1 The lock rod 2 is then inserted into the inner hole of the lock ring 3 and locked by the lock tongue in the lock seat 1. The current electronic signature lock has the following shortcomings in actual use:

[0004] Since the lock rod 2 of the current electronic signature lock is an inverted U-shaped structure, after the two lock rings 3 are locked, Figure 1 As shown, more than half of the locking rod 2 is exposed to the external environment, which makes it particularly easy for someone to forcibly break the current electronic signature blockade. For example, the locking rod 2 exposed to the external environment can be directly cut off by using steel shears, or the locking rod 2 can be sawed off by using steel saw blades. In this way, the electronic signature blockade can be easily broken by force, and the safety performance of the electronic signature blockade is poor.

[0005] To address the poor security of current electronic signature locks, Chinese invention patent publication CN101886498B discloses an electronic signature lock comprising a rotating lock rod and a lock body, a fastener connected to one end of the rotating lock rod, and an alarm device disposed within the lock body. When the rotating lock rod is moved to open the electronic signature lock, the fastener triggers the alarm device, which emits a warning signal. If the electronic signature lock is illegally opened, the warning signal notifies management personnel, allowing them to take timely safety measures and improving the security of the electronic signature lock.

[0006] The technical solution provided by the above patent adopts the anti-theft measure of "sending a warning signal to notify the management personnel when the electronic signature lock is illegally opened so that the management personnel can take safety measures in time". The problem with this measure is that the rotating lock rod is directly exposed to the external environment, and the rotating lock rod can be easily cut off, causing the electronic signature lock to be illegally opened. Utility Model Content

[0007] The purpose of the utility model is to provide a sealing and anti-tampering structure in order to solve the problems existing in the prior art pointed out in the background technology.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A sealing and anti-tampering structure, comprising:

[0010] A lock seat, wherein a push rod motor is installed inside the lock seat; and

[0011] A locking rod, which is arranged on the top of the lock base and includes a connecting rod and a locking block connected to the top of the connecting rod. The connecting rod passes through the two locked rings and is driven by a push rod motor to move downward to the locking block to press the locked rings so that the connecting rod is received in a locking hole formed in the upper surface of the lock base and in the interior of the locked rings.

[0012] The connecting rod includes an upper rod connected to the locking block and a lower rod fixedly connected to the output shaft of the push rod motor, and the upper rod and the lower rod are axially fixedly connected by a plurality of sets of mutually cooperating positioning protrusions and positioning grooves;

[0013] When the locking block presses the locked ring, at least a portion of the connection between the upper rod and the lower rod is received in the locking hole.

[0014] Preferably, a first half-column is provided at the bottom of the upper rod, and a second half-column is provided at the top of the lower rod, and the first half-column and the second half-column are combined to form a round rod with the same diameter and coaxial with the connecting rod;

[0015] The positioning protrusions and positioning grooves of the same group are arranged on the first half column and the second half column, and the positioning protrusions are arranged along the radial direction of the connecting rod.

[0016] Preferably, the first half-column and the second half-column both have vertical planes, and the positioning protrusions and positioning grooves of the same group are respectively arranged on two vertical planes.

[0017] Preferably, the positioning protrusion is cylindrical, and one end of the positioning protrusion facing the corresponding positioning groove is tapered.

[0018] Preferably, the first half column is magnetically connected to the second half column via a magnet block.

[0019] Preferably, positioning rods are fixed at both ends of the bottom surface of the locking block, and positioning holes are opened on the upper surface of the lock seat corresponding to the positions of the positioning rods. When the locking block presses the locked ring, the bottom end of the positioning rod is inserted into the positioning hole.

[0020] Preferably, a connecting column coaxially arranged therewith is fixed to the top end of the connecting rod, the top end of the connecting column is fixedly connected to the locking block, and the diameter of the connecting column is larger than the diameter of the connecting rod.

[0021] Preferably, a buffer pad is provided on the upper surface of the lock seat and the lower surface of the lock block.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] In the present invention, on the one hand, the connecting rod is fully protected by the inner hole of the locked ring and the locking hole, so that the connecting rod cannot be damaged from the outside. At the same time, the middle part of the locking block is pressed against the locked ring, and the connecting rod passes through the locked ring. Therefore, no matter where the locking block is destroyed, the locking rod cannot be opened at one time. Therefore, after the locking rod locks the locked ring, it is difficult to cut or saw off from the outside, which significantly reduces the probability of the locking rod being illegally opened and significantly improves the safety performance. On the other hand, the cooperation of the positioning protrusion and the positioning groove realizes the fixed connection of the upper rod and the lower rod in the axial direction and the easy opening in the radial direction, thereby facilitating the installation and disassembly of the locking rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the existing electronic signature blockade;

[0025] Figure 2 This is a schematic diagram of the overall structure of a sealing and anti-tampering structure proposed by the utility model;

[0026] Figure 3 This is a partial structural diagram of a sealing anti-tampering structure proposed by the utility model;

[0027] Figure 4 This is a structural diagram of a connecting rod of a sealing anti-disassembly structure proposed by the present invention;

[0028] Figure 5 This is a schematic diagram of the unfolded structure of a connecting rod of a sealing anti-disassembly structure proposed in the present invention;

[0029] Figure 6 This is a diagram showing the location of the lock hole in the anti-tampering structure of the seal proposed in the present invention.

[0030] Legend: 1. Lock seat; 11. Push rod motor; 111. Output shaft; 12. Positioning hole; 13. Locking hole; 2. Locking rod; 21. Connecting rod; 211. Upper rod; 211a. First half column; 212. Lower rod; 212a. Second half column; 213. Positioning protrusion; 214. Positioning groove; 215. Magnet block; 216. Vertical plane; 22. Locking block; 23. Positioning rod; 24. Connecting column; 3. Locked ring; 4. Buffer pad. DETAILED DESCRIPTION

[0031] The present invention will be described below with reference to specific embodiments.

[0032] like Figures 2 to 6 As shown, this embodiment provides a signature seal anti-tampering structure. The anti-tampering structure adopts a new structural design. After the anti-tampering structure is locked by the lock ring 3, it can effectively prevent the signature seal from being illegally opened. Specifically, the anti-tampering structure includes two parts: a lock seat 1 and a lock rod 2. The structure of the electronic seal such as the RFID chip, power supply and antenna built into the lock seat 1 is roughly the same as that of the prior art and will not be elaborated here. The difference between the present invention and the prior art lies in the structure of the lock rod 2 and the locking method of the lock rod, which is introduced in detail below.

[0033] like Figure 3 As shown, a push rod motor 11 is installed inside the lock seat 1, and the output shaft 111 of the push rod motor 11 is telescopic in the vertical direction.

[0034] like Figure 2 As shown, the locking rod 2 is arranged on the top of the lock base 1, and the locking rod 2 is in a "T" shape as a whole. Specifically, the locking rod 2 includes a connecting rod 21 and a locking block 22 fixedly connected to the top of the connecting rod 21. The bottom end of the connecting rod 21 is connected to the output shaft 111 of the push rod motor 11. When it is actually necessary to lock the locked ring 3, the connecting rod 21 passes through the two locked rings 3 and then the push rod motor 11 is started. The connecting rod 21 moves downward under the drive of the output shaft 111 of the push rod motor 11 until the locking block 22 presses the locking ring 3 to the upper surface of the lock base 1. At this time, a part of the connecting rod 21 is stored on the upper surface of the lock base 1 In the opened lock hole 13, the other part of the connecting rod 21 is received inside the locked ring 3. In this case, since the entire connecting rod 21 is not exposed to the external environment, the connecting rod 21 cannot be damaged from the outside. At the same time, since the middle part of the locking block 22 is pressed against the locked ring 3, and the connecting rod 21 passes through the locked ring 3, no matter where the locking block 22 is damaged, the locking rod 2 cannot be opened at one time. Therefore, after the locking rod 2 locks the locked ring 3, it is difficult to cut or saw off the locking rod 2 from the outside, which significantly reduces the probability of the locking rod 2 being illegally opened and significantly improves the safety performance.

[0035] like Figure 4As shown, the connecting rod 21 includes an upper rod 211 connected to the locking block 22 and a lower rod 212 fixedly connected to the output shaft 111 of the push rod motor 11. The upper rod 211 and the lower rod 212 are axially fixedly connected by several groups of mutually cooperating positioning protrusions 213 and positioning grooves 214. The axial fixed connection here means that when the upper rod 211 and the lower rod 212 are pulled along the axial direction, the upper rod 211 and the lower rod 212 cannot be separated. Since the force applied by the push rod motor 11 on the lower rod 212 is also along the axial direction of the lower rod 212, after the push rod motor 11 pulls the locking block 22 and is tightened by the locking ring 3, the upper rod 211 and the lower rod 212 can be stably connected together, and there will be no separation between the upper rod 211 and the lower rod 212.

[0036] When the locking block 22 presses the locked ring 3, the connection position of the upper rod 211 and the lower rod 212 is at least partially received in the locking hole 13. The aperture of the locking hole 13 is slightly larger than the diameter of the upper rod 211. Therefore, when only a part of the connection position of the upper rod 211 and the lower rod 212 is required to be received in the locking hole 13, the locking hole 13 will radially lock the connection position of the upper rod 211 and the lower rod 212, and the upper rod 211 and the lower rod 212 will not slide relative to each other in the radial direction, so that the positioning protrusion 213 can be stably inserted into the interior of the positioning groove 214.

[0037] The locking block 22 is pressed against the locking ring 3, and the locking rod 21 is connected to the locking ring 3 by the locking block 22.

[0038] like Figure 5As shown, a first half column 211a is provided at the bottom of the upper rod 211, and a second half column 212a is provided at the top of the lower rod 212. The first half column 211a and the second half column 212a are combined to form a round rod with the same diameter and coaxial with the connecting rod 21. The round rod refers to the connection position of the upper rod 211 and the lower rod 212 mentioned above; the same group of positioning protrusions 213 and positioning grooves 214 are provided on the first half column 211a and the second half column 212a. For example, the same group of positioning protrusions 213 and positioning grooves 214 are respectively provided on the first half column 211a and the second half column 212a, or the same group of positioning protrusions 213 and positioning grooves 214 are respectively provided on the second half column 212a and the first half column 211a, or the first half column 211a and the second half column 212a are both provided with positioning protrusions 213 and positioning grooves 214, as shown in FIG. Figure 5 As shown, in this embodiment, both the first half column 211 a and the second half column 212 a are provided with a positioning protrusion 213 and a positioning groove 214 , and the positioning protrusion 213 is provided along the radial direction of the connecting rod 21 .

[0039] Furthermore, the first half column 211a and the second half column 212a both have a vertical plane 216, such as Figure 5 As shown, the same group of positioning protrusions 213 and positioning grooves 214 are respectively arranged on two vertical planes 216.

[0040] Furthermore, the positioning protrusion 213 is cylindrical, and one end of the positioning protrusion 213 facing the corresponding positioning groove 214 is tapered. The tapered structural design facilitates the positioning protrusion 213 to be inserted into the corresponding positioning groove 214 .

[0041] In order to facilitate the connection between the first half column 211a and the second half column 212a, and to improve the stability after the first half column 211a and the second half column 212a are connected, the first half column 211a is magnetically connected to the second half column 212a through the magnet block 215. Through the setting of the magnet block 215, after the first half column 211a and the second half column 212a are magnetically linked together through the magnet block 215, the first half column 211a and the second half column 212a can form a stable round rod, and the first half column 211a and the second half column 212a will not be completely connected, resulting in the semicircular edges of the first half column 211a and / or the second half column 212a protruding from the outer peripheral surface of the connecting rod 21, so that the connecting rod 21 can be smoothly pulled into the lock hole 13 by the push rod motor 11.

[0042] like Figure 2 and Figure 3As shown, positioning rods 23 are fixed at both ends of the bottom surface of the locking block 22, and a positioning hole 12 is opened on the upper surface of the lock seat 1 corresponding to the position of the positioning rod 23. When the locking block 22 presses the locked ring 3, the bottom end of the positioning rod 23 is inserted into the positioning hole 12, thereby positioning the locking block 22 so that it can be aligned with the lock seat 1.

[0043] like Figure 3 As shown, the top end of the connecting rod 21 is fixed with a connecting column 24 arranged coaxially therewith, the top end of the connecting column 24 is fixedly connected to the locking block 22, and the diameter of the connecting column 24 is larger than the diameter of the connecting rod 21. The connecting column 24 can increase the connection area between the connecting rod 21 and the locking block 22, and when the locking block 22 presses the locked ring 3, the connecting column 24 will also be completely received inside the locked ring 3, further increasing the difficulty of breaking the locking rod 2.

[0044] like Figure 3 As shown, a buffer pad 4 is provided on the upper surface of the lock seat 1 and the lower surface of the lock block 22, so that the lock ring 3 can avoid direct contact with the lock seat 1 and the lock block 22, which is beneficial to protecting the lock seat 1 and the lock block 22. At the same time, the buffer pad 4 is made of rubber material, which is soft and has a certain buffering and shock-absorbing effect.

[0045] The method of using this embodiment is as follows: when the lock base 1 and the lock rod 2 need to be used to lock the locked ring 3, first, the lock base 1 and the lock rod 2 connected together need to be separated, specifically as follows: ensure that the connection position of the upper rod 211 and the lower rod 212 is completely outside the lock hole 13. If the connection position of the upper rod 211 and the lower rod 212 is partially or completely inside the lock hole 13, the push rod motor 11 needs to be started to push the connection position of the upper rod 211 and the lower rod 212 out of the lock hole 13;

[0046] After that, the upper rod 211 is pushed in the opposite direction along the radial direction of the upper rod 211 to separate the upper rod 211 and the lower rod 212. Then, the lock seat 1 is moved to insert the lower rod 212 into the inner hole of the locked ring 3 from the bottom. Then, the lock rod 2 is moved to insert the upper rod 211 into the inner hole of the locked ring 3 from the top. Then, the first half column 211a and the second half column 212a are connected together, and the positioning protrusion 213 is inserted into the interior of the positioning groove 214.

[0047] Then, the push rod motor 11 is started again, and the locking block 22 is pulled by the push rod motor 11 until the locking block 22 is pressed tightly by the locking ring 3 .

Claims

1. A sealing and anti-tampering structure, characterized in that: include: A lock seat (1), wherein a push rod motor (11) is installed inside the lock seat (1); and A locking rod (2), the locking rod (2) being arranged on the top of the lock seat (1), and the locking rod (2) comprising a connecting rod (21) and a locking block (22) connected to the top of the connecting rod (21), the connecting rod (21) passing through the two locked rings (3) and being driven by the push rod motor (11) to move downward to the locking block (22) to press the locked rings (3), so that the connecting rod (21) is received in the locking hole (13) opened on the upper surface of the lock seat (1) and inside the locked rings (3); The connecting rod (21) comprises an upper rod (211) connected to the locking block (22) and a lower rod (212) fixedly connected to the output shaft (111) of the push rod motor (11), wherein the upper rod (211) and the lower rod (212) are axially fixedly connected via a plurality of groups of mutually cooperating positioning protrusions (213) and positioning grooves (214); When the locking block (22) presses the locked ring (3), at least a portion of the connection position between the upper rod (211) and the lower rod (212) is received in the locking hole (13).

2. The sealing and anti-tampering structure according to claim 1, characterized in that: A first half-column (211a) is provided at the bottom of the upper rod (211), and a second half-column (212a) is provided at the top of the lower rod (212); the first half-column (211a) and the second half-column (212a) are combined to form a round rod having the same diameter and being coaxial with the connecting rod (21); The positioning protrusion (213) and positioning groove (214) of the same group are arranged on the first half column (211a) and the second half column (212a), and the positioning protrusion (213) is arranged along the radial direction of the connecting rod (21).

3. The sealing and anti-tampering structure according to claim 2, characterized in that: The first half-column (211a) and the second half-column (212a) both have vertical planes (216), and the positioning protrusions (213) and positioning grooves (214) of the same group are respectively arranged on the two vertical planes (216).

4. The sealing and anti-tampering structure according to claim 2, characterized in that: The positioning protrusion (213) is cylindrical, and one end of the positioning protrusion (213) facing the corresponding positioning groove (214) is tapered.

5. The sealing and anti-tampering structure according to claim 2, characterized in that: The first half column (211a) is magnetically connected to the second half column (212a) via a magnet block (215).

6. The sealing and anti-tampering structure according to claim 1, characterized in that: Positioning rods (23) are fixed to both ends of the bottom surface of the locking block (22), and a positioning hole (12) is provided on the upper surface of the locking seat (1) at a position corresponding to the positioning rod (23). When the locking block (22) presses the locked ring (3), the bottom end of the positioning rod (23) is inserted into the positioning hole (12).

7. The sealing and anti-tampering structure according to claim 1, characterized in that: A connecting column (24) coaxially arranged therewith is fixed to the top end of the connecting rod (21), the top end of the connecting column (24) is fixedly connected to the locking block (22), and the diameter of the connecting column (24) is larger than the diameter of the connecting rod (21).

8. The sealing and anti-tampering structure according to claim 1, characterized in that: The upper surface of the lock seat (1) and the lower surface of the lock block (22) are both provided with a buffer pad (4).

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