A container door lock rod anti-theft device

Abstract

The present application relates to container lock rod technical field, specifically is a kind of container door lock rod anti-theft device, including lock rod, protection device and handle;Lock sleeve is made of two horizontal structures, lock rod is slidably arranged in lock sleeve along the length direction of lock sleeve;Lock head is fixedly arranged at the side of lock sleeve;Lowering piece is slidably arranged in the horizontal structure of upper side in lock sleeve along vertical direction;Handle is vertically provided with contact slot, and the inner wall of contact slot is horizontally provided with sliding slot;First guide rod is fixedly arranged on the side wall of contact claw along the length direction of sliding slot;Limiting plate is arranged at the side of contact claw away from lowering piece, and first guide pipe is slidably arranged on limiting plate, and first gap is formed between limiting plate and contact claw;First spring is arranged in first gap along the axis of first guide rod;Signal transmitter is arranged at the side of handle, and vibration sensor is arranged in lock sleeve.The present application provides sufficient time for security personnel to arrive, and reduces cost.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of container lock rods, in particular to a container door lock rod anti-theft device. BACKGROUND

[0002] The container door lock rod has a protection effect on the container in transportation, and the existing container door lock rod does not have a dustproof function, thereby reducing the practicability of the door lock, and the moisture around the door lock cannot be treated, so that the door lock is prone to damp damage, thereby reducing the moisture-proof capability of the door lock.

[0003] A waterproof, dustproof and anti-theft container door lock is disclosed in Chinese Patent CN215761032U, which comprises a rotating shaft, a theftproof container door lock body is installed on one side of the rotating shaft, and a dustproof device is arranged on the outer side of the theftproof container door lock body; the dustproof device comprises a fixed plate, a closed frame, a limiting plate, a tension spring, a guide rod, a buckle and a moving plate, the fixed plate is arranged below the theftproof container door lock body, the closed frame is arranged above the fixed plate and on the outer side of the theftproof container door lock body, the moving plate is installed on the side of the closed frame away from the rotating shaft, the moving plate and the fixed plate are connected through the buckle, the guide rod is installed above the fixed plate and on the inner side of the moving plate, the limiting plate is installed above the guide rod, and the tension spring is installed between the moving plate and the limiting plate and on the outer side of the guide rod.

[0004] The above scheme improves the moisture-proof performance of the door lock, but ignores the main function of the door lock. Although the existing door lock is continuously strengthened by improving the material and structure, the means of damaging the door lock is also increasingly replaced. No matter how the door lock is upgraded, the door lock will be damaged. The existing door lock does not have an alarm function when it is damaged. Even if the door lock can be protected for a period of time, the door lock will eventually be damaged as long as the time is long enough. It is particularly important to make full use of this period of time to provide information to security personnel. If the above function is realized, a visual device can be arranged beside the door lock, but the cost is too high, and the maintenance cost is also high. SUMMARY

[0005] In order to solve the above problems, the application provides a container door lock rod anti-theft device. When installed, the lock sleeve and the lock head are horizontally inserted into the handle from one side of the handle, so that the upper side of the lateral structure of the lock sleeve is located in the closed ring formed by the handle and the container door. Then the lock rod is inserted into the lock sleeve along the length direction of the lock sleeve, and the lock rod is locked by the lock head. The inserted lock rod will press down the lower pressing piece in the lock sleeve. The lower pressing piece extends from the lower part of the lock sleeve and enters the contact groove. The lower pressing piece will push the contact claw, so that the contact claw is in contact with the side wall of the lower pressing piece. Since the side of the contact claw away from the lower pressing piece is always in the power-on state, after power-on, the current will flow from the contact claw in one of the handles to the lower pressing piece in the handle. Since the lower pressing piece is in the pressed state, the lower pressing piece and the lock rod are in contact. The current can flow through the lower pressing piece to the lock rod, and then to the lower pressing piece and the contact claw in the other handle. Thus, a loop is formed. When the lock sleeve is damaged, the vibration sensor in the lock sleeve can monitor the vibration. The door of the container can be opened only when the lock sleeve and the lock rod are completely damaged. Since the lock sleeve completely wraps the lock rod, the lock rod will be disconnected from the lock sleeve when cut. At this time, the loop will be disconnected. Thus, the signal contactor can send out a signal to remind the surrounding security personnel that the lock is being damaged, thereby ensuring the safety of the goods in the container.

[0006] In order to solve the above problems, the application provides a container door lock rod anti-theft device. When installed, the lock sleeve and the lock head are horizontally inserted into the handle from one side of the handle, so that the upper side of the lateral structure of the lock sleeve is located in the closed ring formed by the handle and the container door. Then the lock rod is inserted into the lock sleeve along the length direction of the lock sleeve, and the lock rod is locked by the lock head. The inserted lock rod will press down the lower pressing piece in the lock sleeve. The lower pressing piece extends from the lower part of the lock sleeve and enters the contact groove. The lower pressing piece will push the contact claw, so that the contact claw is in contact with the side wall of the lower pressing piece. Since the side of the contact claw away from the lower pressing piece is always in the power-on state, after power-on, the current will flow from the contact claw in one of the handles to the lower pressing piece in the handle. Since the lower pressing piece is in the pressed state, the lower pressing piece and the lock rod are in contact. The current can flow through the lower pressing piece to the lock rod, and then to the lower pressing piece and the contact claw in the other handle. Thus, a loop is formed. When the lock sleeve is damaged, the vibration sensor in the lock sleeve can monitor the vibration. The door of the container can be opened only when the lock sleeve and the lock rod are completely damaged. Since the lock sleeve completely wraps the lock rod, the lock rod will be disconnected from the lock sleeve when cut. At this time, the loop will be disconnected. Thus, the signal contactor can send out a signal to remind the surrounding security personnel that the lock is being damaged, thereby ensuring the safety of the goods in the container.

[0007] Preferably, the protection device comprises a first waterproof device, the first waterproof device comprises a driving element and an elastic assembly; the driving element is slidingly arranged in the contact groove along the length direction of the contact groove; and the elastic assembly is arranged at the bottom of the driving element.

[0008] Preferably, a first groove is arranged at the upper part of the driving element along the axis of the driving element, the first groove is in an inverted circular table structure, and a second groove is arranged at the bottom of the first groove.

[0009] Preferably, the elastic assembly comprises a limiting ring and a second spring; the limiting ring is fixedly arranged on the side wall of the driving element along the axis of the driving element, and a second gap is formed between the limiting ring and the bottom of the contact groove; and the second spring is arranged in the second gap along the axis of the limiting ring.

[0010] Preferably, the lower part of the pressing element is fixedly provided with an insulating layer.

[0011] Preferably, the protection device comprises an extension ear, a second guide rod and a third spring; the extension ear is fixedly arranged on the side wall of the pressing element; the second guide rod is vertically arranged in the lock sleeve and penetrates through the extension ear, the second guide rod and the extension ear are in sliding cooperation, a third gap is formed between the upper part of the extension ear and the lock sleeve; and the third spring is arranged in the third gap along the axis of the second guide rod.

[0012] Preferably, the protection device further comprises a water blocking device, the water blocking device comprises a sliding ring, a fourth spring and a bellows; the sliding ring is slidingly arranged on the lock rod along the length direction of the lock rod, a fourth gap is formed between the sliding ring and one side of the lock rod; the fourth spring is arranged in the fourth gap along the axis of the lock rod; the bellows is sleeved on the outside of the fourth spring along the axis of the fourth spring, and the two ends of the bellows are fixedly connected with the sliding ring and the lock rod respectively.

[0013] Preferably, the protection device further comprises an auxiliary device, the auxiliary device comprises a clamping block, a top plate, a fifth spring and a third guide rod; a plurality of clamping grooves are uniformly arranged on the upper part of the lock rod along the length direction of the lock rod, the clamping block is penetratingly arranged on the upper part of the lock sleeve, and the clamping block can be in clamping cooperation with the clamping grooves; the top plate is horizontally arranged above the clamping block, a fifth gap is formed between the top plate and the upper part of the clamping block; the third guide rod is vertically fixedly arranged on the upper part of the clamping block, the third guide rod penetrates through the top plate and is in sliding cooperation with the top plate; and the fifth spring is arranged in the fifth gap along the axis of the third guide rod.

[0014] Preferably, the auxiliary device further comprises a threaded rod; the threaded rod is vertically and rotationally arranged on the upper part of the lock sleeve, the threaded rod penetrates through the top plate and is in threaded cooperation with the top plate.

[0015] Preferably, the auxiliary device further comprises a positioning rod, a positioning sleeve and a positioning lug; the positioning rod is vertically fixedly arranged at the upper portion of the lock sleeve; the positioning sleeve is slidingly arranged on the positioning rod along the axis of the positioning rod, the top portion of the positioning sleeve is fixedly connected with the bottom portion of the top plate, and the side wall of the positioning sleeve is provided with a positioning slot; and the positioning lug is fixedly arranged on the side wall of the positioning rod and slidingly arranged in the positioning slot.

[0016] The beneficial effects of the present application compared with the prior art are:

[0017] The present application has the beneficial effects that: by arranging the lock sleeve, the lock head, the pressing piece, the contact claw, the first guide rod, the first spring, the limiting plate and the signal transmitter, when installing, the lock sleeve and the lock head are horizontally inserted into the handle from one side of the handle, so that the upper lateral structure of the lock sleeve is located in the closed ring formed by the handle and the container door, then the lock rod is inserted into the lock sleeve along the length direction of the lock sleeve, and the lock rod is locked by the lock head, the inserted lock rod presses the pressing piece in the lock sleeve, the pressing piece extends from the lower portion of the lock sleeve and probes into the contact slot, the pressing piece drives the contact claw, so that the contact claw contacts with the side wall of the pressing piece, since the side of the contact claw away from the pressing piece is always in the energized state, after energization, the current flows from the contact claw in one handle to the pressing piece in the handle, since the pressing piece is in the pressed state, the pressing piece and the lock rod are in the contact state, the current can flow to the pressing piece in the other handle and the contact claw through the pressing piece, so that the loop is formed, when the lock sleeve is damaged, the vibration sensor in the lock sleeve can monitor the vibration, and the door of the container can be opened only when the lock sleeve and the lock rod are completely damaged, since the lock sleeve completely wraps the lock rod, the lock rod is disconnected from the lock sleeve when cutting, at this time, the loop is disconnected, so that the signal contactor can send the signal to remind the surrounding security personnel that the lock is being damaged, and the safety of the goods in the container is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic view of a container door lock rod anti-theft device Figure 1 .

[0019] Figure 2 It is a three-dimensional schematic view of a container door lock rod anti-theft device Figure 2 .

[0020] Figure 3 It is a three-dimensional schematic view of a container door lock rod anti-theft device Figure 3 The partial enlarged view of A in the container door lock rod anti-theft device.

[0021] Figure 4 It is a sectional three-dimensional schematic view of a container door lock rod anti-theft device.

[0022] Figure 5It is a front view of a container door lock rod anti-theft device.

[0023] Figure 6 It is a front view of a container door lock rod anti-theft device. Figure 5 It is a sectional view of B-B in the middle.

[0024] Figure 7 It is a front view of a container door lock rod anti-theft device. Figure 6 It is a local enlarged view of C in the middle.

[0025] Figure 8 It is a side view of a container door lock rod anti-theft device.

[0026] Figure 9 It is a front view of a container door lock rod anti-theft device. Figure 8 It is a sectional view of D-D in the middle.

[0027] Figure 10 It is a front view of a container door lock rod anti-theft device. Figure 9 It is a local enlarged view of E in the middle.

[0028] Figure 11 It is a perspective view of a container door lock rod anti-theft device after removing the lock sleeve.

[0029] The figure label is:

[0030] 1 - lock rod; 2 - protection device; 21 - lock sleeve; 22 - lock head; 23 - pressing piece; 231 - insulation layer; 232 - extension ear; 233 - second guide rod; 234 - third spring; 24 - contact claw; 241 - first guide rod; 242 - first spring; 243 - limiting plate; 25 - first waterproof device; 251 - top driving piece; 2511 - first groove; 2512 - second groove; 252 - elastic assembly; 2521 - limiting ring; 2522 - second spring; 26 - water blocking device; 261 - sliding ring; 262 - fourth spring; 263 - corrugated pipe; 27 - auxiliary device; 271 - clamping block; 272 - top plate; 273 - fifth spring; 274 - third guide rod; 275 - threaded rod; 276 - positioning rod; 277 - positioning sleeve; 278 - positioning protrusion; 3 - handle. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means and specific purposes and functions of the present application, the present application will be described in detail below in combination with the drawings and specific embodiments.

[0032] Referring to Figure 1 , Figure 2 and Figure 7The application discloses a container door lock rod anti-theft device which comprises a lock rod 1, a protection device 2 and a handle 3; the protection device 2 comprises a lock sleeve 21, a lock head 22, a pressing piece 23, a contact claw 24, a first guide rod 241, a first spring 242, a limiting plate 243 and a signal transmitter; the lock sleeve 21 is composed of two transverse structures, the lock sleeve 21 horizontally passes through the handle 3 so that the two transverse structures are located at the upper side and the lower side of the handle 3 respectively, and the lock rod 1 is slidingly arranged in the lock sleeve 21 along the length direction of the lock sleeve 21; the lock head 22 is fixedly arranged at one side of the lock sleeve 21, the lock sleeve 21 and the lock head 22 form a U-shaped structure, and the lock head 22 can lock the lock rod 1; the pressing piece 23 is slidingly arranged in the upper transverse structure of the lock sleeve 21 along the vertical direction, the lower part of the pressing piece 23 can extend out of the lower part of the transverse structure, the upper part of the pressing piece 23 is connected with the lock rod 1 after the lock rod 1 is inserted into the lock sleeve 21, and the pressing piece 23 and the lock rod 1 are electrically connected; a contact groove is vertically arranged on the handle 3, a sliding groove is horizontally arranged on the inner wall of the contact groove, the contact claw 24 is slidingly arranged in the sliding groove along the length direction of the sliding groove, the contact claw 24 can be in contact with the pressing piece 23, the contact claw 24 and the pressing piece 23 are electrically connected, and the current flows from the contact claw 24 and the pressing piece 23 in one handle 3 to the pressing piece 23 and the contact claw 24 in the other handle 3 through the lock rod 1; the first guide rod 241 is fixedly arranged on the side wall of the contact claw 24 along the length direction of the sliding groove; the limiting plate 243 is arranged at the side of the contact claw 24 away from the pressing piece 23, the first guide tube is slidingly arranged on the limiting plate 243, and a first gap is formed between the limiting plate 243 and the contact claw 24; the first spring 242 is arranged in the first gap along the axis of the first guide rod 241; the signal transmitter is arranged at one side of the handle 3, and a vibration sensor is arranged in the lock sleeve 21, and the signal transmitter emits a signal when the vibration sensor monitors vibration and the current on the lock rod 1 is disconnected.

[0033] The lock rod 1 has a conductive effect at the contact position with the lower pressing piece 23 after installation, and the other part of the surface of the lock rod 1 is coated with an insulating material. During installation, the lock sleeve 21 and the lock head 22 are inserted into the handle 3 from one side of the handle 3 horizontally, so that the upper side of the transverse structure of the lock sleeve 21 is located in the closed loop formed by the handle 3 and the container door. Then the lock rod 1 is inserted into the lock sleeve 21 along the length direction of the lock sleeve 21, and the lock rod 1 is locked by the lock head 22. The inserted lock rod 1 will press down the lower pressing piece 23 in the lock sleeve 21. The lower pressing piece 23 extends from below the lock sleeve 21 and penetrates into the contact groove. The lower pressing piece 23 drives the contact claw 24, so that the contact claw 24 is in contact with the side wall of the lower pressing piece 23. Since the side of the contact claw 24 away from the lower pressing piece 23 is always in a conductive state, after being electrified, the current will flow from the contact claw 24 in one of the handles 3 to the lower pressing piece 23 in the handle 3. Since the lower pressing piece 23 is in a pressed state, the lower pressing piece 23 and the lock rod 1 are in contact. The current can flow to the lock rod 1 through the lower pressing piece 23, and then to the lower pressing piece 23 and the contact claw 24 at the other handle 3. Thus, a loop is formed. When the lock sleeve 21 is damaged, the vibration sensor in the lock sleeve 21 can monitor the vibration. The door of the container can be opened only when the lock sleeve 21 and the lock rod 1 are completely damaged. Since the lock sleeve 21 completely wraps the lock rod 1, the lock rod 1 will be disconnected from the lock sleeve 21 when cut. At this time, the loop is disconnected. Thus, the signal contactor can send a signal to remind the surrounding security personnel that the lock is being damaged. Since the lock does not make an alarm sound, the thief cannot know that the lock has sent a signal. It also takes a certain amount of time to completely cut off the lock sleeve 21, which provides sufficient time for security personnel to arrive. At the same time, the use of visual devices is avoided, the cost is reduced, and the safety of the goods in the container is ensured.

[0034] Referring to Figure 4 , Figure 6 and Figure 7 : The protection device 2 comprises a first waterproof device 25, which comprises a driving piece 251 and an elastic assembly 252. The driving piece 251 is slidably arranged in the contact groove along the length direction of the contact groove. The elastic assembly 252 is arranged at the bottom of the driving piece 251.

[0035] By arranging the elastic assembly 252 and the driving piece 251, when the handle 3 is not locked, since the opening of the contact groove on the handle 3 is upward, rainwater will enter the contact groove when it rains, which will affect the contact between the contact claw 24 and the lower pressing piece 23, causing a short circuit. After the driving piece 251 is arranged, the driving piece 251 will seal the opening of the contact groove, so that rainwater cannot enter the contact groove. After the lock rod 1 is inserted into the lock sleeve 21, the lower pressing piece 23 will press down the driving piece 251 after being pressed by the lock rod 1, so that the contact claw 24 can be in contact with the side wall of the lower pressing piece 23.

[0036] With reference to Figure 7 : the upper part of the top driver 251 is provided with a first groove 2511 along the axis of the top driver 251, the first groove 2511 is a reversed circular cone structure, and a second groove 2512 is provided through the bottom of the first groove 2511.

[0037] As the upper part of the top driver 251 will accumulate rainwater when it rains, and the rainwater will seep into the contact groove from the gap between the top driver 251 and the contact groove over time, in order to avoid the above situation, the first groove 2511 and the second groove 2512 are provided in the top driver 251, when the rainwater falls on the upper part of the top driver 251, the rainwater slides into the second groove 2512 under the guidance of the first groove 2511, and as the second groove 2512 is provided through the bottom of the first groove 2511, the second groove 2512 can directly drain the rainwater.

[0038] With reference to Figure 7 : the elastic assembly 252 includes a limiting ring 2521 and a second spring 2522; the limiting ring 2521 is fixedly arranged on the side wall of the top driver 251 along the axis of the top driver 251, and a second gap is formed between the limiting ring 2521 and the bottom of the contact groove; and the second spring 2522 is arranged in the second gap along the axis of the limiting ring 2521.

[0039] After the staff removes the lock rod 1 and the lock sleeve 21, the second spring 2522 which is originally in a compressed state will pop up, and the second spring 2522 drives the top driver 251 to reset through the limiting ring 2521, so that the top driver 251 blocks the upper opening of the contact groove, ensuring that rainwater cannot enter the contact groove through the upper opening of the contact groove.

[0040] With reference to Figure 7 : the lower part of the pressing member 23 is fixedly provided with an insulating layer 231.

[0041] When the lock rod 1 is removed from the lock sleeve 21, the bottom of the pressing member 23 is coplanar with the bottom of the horizontal structure on the upper side of the lock sleeve 21, in order to ensure that external rainwater does not interfere with the pressing member 23, the bottom of the pressing member 23 is coated with an insulating layer 231, so as to isolate the rainwater.

[0042] With reference to Figure 7 : the protection device 2 includes an extension ear 232, a second guide rod 233 and a third spring 234; the extension ear 232 is fixedly arranged on the side wall of the pressing member 23; the second guide rod 233 is vertically arranged in the lock sleeve 21 and penetrates the extension ear 232, the second guide rod 233 and the extension ear 232 are in sliding fit, and the upper part of the extension ear 232 and the lock sleeve 21 have a third gap therebetween; and the third spring 234 is arranged in the third gap along the axis of the second guide rod 233.

[0043] When the lock rod 1 is inserted into the lock sleeve 21, the lower pressing piece 23 is pressed down by the lock rod 1, the lower pressing piece 23 drives the extension fixedly arranged on the side wall to move, the extension ear 232 slides along the axis of the second guide rod 233, at this time, the third gap between the upper part of the extension ear 232 and the sleeve shell gradually increases, and the third spring 234 gradually stretches as the third gap increases. When the lock rod 1 is pulled out of the lock sleeve 21, the third spring 234 pulls the extension ear 232, so that the lower pressing piece 23 is pulled to reset. The bottom of the reset lower pressing piece 23 is coplanar with the bottom of the upper side horizontal structure of the sleeve shell.

[0044] Referring to Figure 10 and Figure 11 : The protection device 2 further comprises a water blocking device 26, the water blocking device 26 comprises a sliding ring 261, a fourth spring 262 and a bellows 263; the sliding ring 261 is slidingly arranged on the lock rod 1 along the length direction of the lock rod 1, and a fourth gap is formed between the sliding ring 261 and one side of the lock rod 1; the fourth spring 262 is arranged in the fourth gap along the axis of the lock rod 1; the bellows 263 is sleeved on the outside of the fourth spring 262 along the axis of the fourth spring 262, and the two ends of the bellows 263 are fixedly connected with the sliding ring 261 and the lock rod 1 respectively.

[0045] Since the insulating ability of the insulating material coated on the surface of the lock rod 1 is limited, wear and corrosion will inevitably occur in a long time of use. In order to avoid the above situation, when the lock rod 1 is not used, the bellows 263 surrounds the periphery of the lock rod 1. When it is needed to insert the lock rod 1 into the lock sleeve 21, the sliding ring 261 on the lock rod 1 will slide relative to the lock rod 1 with the insertion of the lock rod 1 into the lock sleeve 21, and continuously compresses the fourth spring 262. When the lock head 22 locks the lock rod 1, the fourth spring 262 will not drive the sliding ring 261 to reset. When it is needed to take out, the lock head 22 is unlocked, and then the sliding ring 261 is reset under the elastic force of the fourth spring 262 with the taking out of the lock rod 1.

[0046] Referring to Figures 2-4 : The protection device 2 further comprises an auxiliary device 27, the auxiliary device 27 comprises a clamping block 271, a top plate 272, a fifth spring 273 and a third guide rod 274; a plurality of clamping grooves are evenly formed in the upper part of the lock rod 1 along the length direction of the lock rod 1, the clamping block 271 is penetratingly arranged on the upper part of the lock sleeve 21, and the clamping block 271 can be clamped and matched with the clamping grooves; the top plate 272 is horizontally arranged above the clamping block 271, and a fifth gap is formed between the top plate 272 and the upper part of the clamping block 271; the third guide rod 274 is vertically fixedly arranged on the upper part of the clamping block 271, the third guide rod 274 penetrates through the top plate 272 and is slidingly matched with the top plate 272; the fifth spring 273 is arranged in the fifth gap along the axis of the third guide rod 274.

[0047] When the lock rod 1 is inserted into the lock sleeve 21, the lock rod 1 is slid into the lock sleeve 21 along the length of the lock sleeve 21, the clamping groove on the lock rod 1 is clamped with the clamping block 271, and the clamping block 271 is tightly pressed in the clamping groove under the action of the fifth spring 273, so that the lock rod 1 cannot be taken off, and the sliding ring 261 is prevented from sliding the lock rod 1 under the elastic force of the fourth spring 262 when the lock rod 1 is inserted into the lock sleeve 21.

[0048] With reference to Figures 2-4 The auxiliary device 27 further comprises a threaded rod 275; the threaded rod 275 is vertically rotatably arranged on the upper portion of the lock sleeve 21, and the threaded rod 275 penetrates the top plate 272 and is threadedly connected with the top plate 272.

[0049] The height of the top plate 272 is adjusted by rotating the threaded rod 275, so that when the lock rod 1 needs to be taken out, the height of the top plate 272 is adjusted by the threaded rod 275, so that the clamping block 271 is separated from the clamping groove, and then the lock rod 1 can be taken out.

[0050] With reference to Figure 3 And Figure 4 The auxiliary device 27 further comprises a positioning rod 276, a positioning sleeve 277 and a positioning protrusion 278; the positioning rod 276 is vertically fixedly arranged on the upper portion of the lock sleeve 21; the positioning sleeve 277 is slidably arranged on the positioning rod 276 along the axis of the positioning rod 276, the top portion of the positioning sleeve 277 is fixedly connected with the bottom portion of the top plate 272, and the side wall of the positioning sleeve 277 is provided with a positioning groove; and the positioning protrusion 278 is fixedly arranged on the side wall of the positioning rod 276 and is slidably arranged in the positioning groove.

[0051] Since the lifting height of the top plate 272 cannot be grasped when the threaded rod 275 is rotated, the positioning rod 276 and the positioning sleeve 277 are arranged to solve the above problem, that is, when the positioning protrusion 278 fixedly arranged on the side wall of the positioning rod 276 moves to the highest position of the positioning groove, the clamping block 271 is separated from the clamping groove, and when the positioning protrusion 278 slides to the lowest position of the positioning groove, the clamping block 271 is clamped with the clamping groove.

[0052] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A container door lock bar anti-theft device, comprising a lock bar (1), a protective device (2), and a handle (3); Its features are, The protective device (2) includes a lock sleeve (21), a lock head (22), a pressing member (23), a contact claw (24), a first guide rod (241), a first spring (242), a limiting plate (243), and a signal transmitter; The lock sleeve (21) consists of two transverse structures. The lock sleeve (21) passes horizontally through the handle (3) so that the two transverse structures are located on the upper and lower sides of the handle (3) respectively. The lock rod (1) is slidably disposed inside the lock sleeve (21) along the length direction of the lock sleeve (21). The lock head (22) is fixedly installed on one side of the lock sleeve (21). The lock sleeve (21) and the lock head (22) form a "U" shaped structure. The lock head (22) can lock the lock rod (1). The pressing member (23) is slidably disposed in the upper transverse structure of the lock sleeve (21) in the vertical direction. The lower part of the pressing member (23) can extend from the lower part of the transverse structure. The upper part of the pressing member (23) is connected to the locking rod (1) after the locking rod (1) is inserted into the lock sleeve (21). The pressing member (23) and the locking rod (1) are electrically connected. A vertical contact groove is provided on the handle (3), and a horizontal sliding groove is provided on the inner wall of the contact groove. The contact claw (24) is slidably disposed in the sliding groove along the length direction of the sliding groove. The contact claw (24) can contact the pressing member (23). The contact claw (24) and the pressing member (23) are electrically connected. The current flows from the contact claw (24) and the pressing member (23) in one of the handles (3) through the locking rod (1) to the pressing member (23) and the contact claw (24) in the other handle (3). The first guide rod (241) is fixedly disposed on the side wall of the contact claw (24) along the length of the sliding groove; The limiting plate (243) is located on the side of the contact claw (24) away from the pressing member (23), and the first guide rod is slidably disposed on the limiting plate (243). There is a first gap between the limiting plate (243) and the contact claw (24). The first spring (242) is disposed within the first gap along the axis of the first guide rod (241); The signal transmitter is located on one side of the handle (3), and a vibration sensor is installed inside the lock sleeve (21). When the vibration sensor detects vibration and the current on the lock rod (1) is disconnected, the signal transmitter will send out a signal.

2. The anti-theft device for a container door lock bar according to claim 1, characterized in that, The protective device (2) includes a first waterproof device (25), which includes a pusher (251) and an elastic component (252); The pusher (251) is slidably disposed in the contact groove along the length direction of the contact groove; The elastic component (252) is located at the bottom of the actuating member (251).

3. The anti-theft device for a container door lock bar according to claim 2, characterized in that, The upper part of the pusher (251) is provided with a first groove (2511) along the axis of the pusher (251). The first groove (2511) is an inverted frustum structure. The second groove (2512) is provided through the bottom of the first groove (2511).

4. The anti-theft device for a container door lock bar according to claim 2, characterized in that, The elastic component (252) includes a limiting ring (2521) and a second spring (2522); The limiting ring (2521) is fixedly installed on the side wall of the pushing member (251) along the axis of the pushing member (251), and there is a second gap between the limiting ring (2521) and the bottom of the contact groove; The second spring (2522) is positioned within the second gap along the axis of the limiting ring (2521).

5. The anti-theft device for a container door lock bar according to claim 1, characterized in that, An insulating layer (231) is fixedly provided on the lower part of the pressing part (23).

6. The anti-theft device for a container door lock bar according to claim 1, characterized in that, The protective device (2) includes an extension lug (232), a second guide rod (233), and a third spring (234); The extension ear (232) is fixedly mounted on the side wall of the pressing member (23); The second guide rod (233) is vertically set inside the lock sleeve (21) and passes through the extension ear (232). The second guide rod (233) and the extension ear (232) are slidably engaged. There is a third gap between the upper part of the extension ear (232) and the lock sleeve (21). The third spring (234) is disposed in the third gap along the axis of the second guide rod (233).

7. The anti-theft device for a container door lock bar according to claim 1, characterized in that, The protective device (2) also includes a water-blocking device (26), which includes a sliding ring (261), a fourth spring (262), and a bellows (263); The sliding ring (261) is slidably disposed on the locking rod (1) along the length direction of the locking rod (1), and there is a fourth gap between the sliding ring (261) and one side of the locking rod (1); The fourth spring (262) is set in the fourth gap along the axis of the locking rod (1); The bellows (263) is sleeved on the outside of the fourth spring (262) along the axis of the fourth spring (262), and the two ends of the bellows (263) are fixedly connected to the sliding ring (261) and the locking rod (1) respectively.

8. The anti-theft device for a container door lock bar according to claim 7, characterized in that, The protective device (2) also includes an auxiliary device (27), which includes a snap-fit ​​block (271), a top plate (272), a fifth spring (273), and a third guide rod (274); Multiple snap-fit ​​grooves are evenly provided on the upper part of the locking rod (1) along the length direction of the locking rod (1), and snap-fit ​​blocks (271) are provided through the upper part of the lock sleeve (21). The snap-fit ​​blocks (271) can snap-fit ​​with the snap-fit ​​grooves. The top plate (272) is horizontally positioned above the snap-fit ​​block (271), and there is a fifth gap between the top plate (272) and the upper part of the snap-fit ​​block (271); The third guide rod (274) is vertically fixed on the upper part of the snap-fit ​​block (271), and the third guide rod (274) passes through the top plate (272) and slides with the top plate (272); The fifth spring (273) is positioned within the fifth gap along the axis of the third guide rod (274).

9. A container door lock bar anti-theft device according to claim 8, characterized in that, The auxiliary device (27) also includes a threaded rod (275); The threaded rod (275) is vertically rotatably mounted on the upper part of the lock sleeve (21). The threaded rod (275) passes through the top plate (272) and is threadedly engaged with the top plate (272).

10. A container door lock bar anti-theft device according to claim 9, characterized in that, The auxiliary device (27) also includes a positioning rod (276), a positioning sleeve (277), and a positioning protrusion (278); The positioning rod (276) is vertically fixed on the upper part of the lock sleeve (21); The positioning sleeve (277) is slidably mounted on the positioning rod (276) along the axis of the positioning rod (276). The top of the positioning sleeve (277) is fixedly connected to the bottom of the top plate (272). The side wall of the positioning sleeve (277) is provided with a positioning groove. The positioning protrusion (278) is fixedly mounted on the side wall of the positioning rod (276), and the positioning protrusion (278) is slidably mounted in the positioning groove.

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