Armored truck with double-lock doors

Abstract

This utility model discloses a double-security door lock for armored trucks, including a base, a connecting rod, shafts exposed from a first and a second side of the base respectively, a connecting plate mounted on the first end of the shaft, a mechanical lock mounted on the base, and an electromagnetic push rod mounted on the second side of the base. The mechanical lock includes a lock seat mounted on the base and exposed from the first and a second side of the base, a rotary release assembly inserted into the lock seat and extending from the lock seat exposed on the second side of the base, and a lock sleeve fitted around the lock seat exposed on the second side of the base and rotatable around that position. The lock sleeve and the rotary release assembly are intermittently linked; the rotary release assembly rotates the lock sleeve when it reaches a preset angle. The first end of the connecting rod is connected to the lock sleeve, and the second end of the connecting rod is connected to the telescopic end of the electromagnetic push rod. The telescopic end can drive the lock sleeve to rotate to the unlocking or locking position via the connecting rod, thus providing the advantage of double security with a dual-drive mode.

Description

Technical Field

[0001] This utility model relates to the technical field of locks, and more particularly to a double-security door lock for armored cash transport vehicles. Background Technology

[0002] As we all know, armored trucks cannot function without locks. Locks ensure the stability of the truck doors after they are closed, preventing them from being forcibly opened.

[0003] For example, the anti-theft lock cylinder linkage and anti-theft car door lock disclosed in Chinese patent application No. 201320117127.2 have a lock cylinder rotation switch that is only driven by the lock cylinder, which has the defect of a single mode.

[0004] Therefore, there is an urgent need for a double-lock system for armored truck doors to overcome the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this utility model is to provide a dual-insurance door lock for armored trucks with a dual-drive mode.

[0006] To achieve the above objectives, the armored truck double-lock system of this invention includes a base, a shaft, a connecting plate, a mechanical lock, an electromagnetic push rod, and a connecting rod. The shaft is rotatably inserted into the base, and also protrudes from a first and a second opposite side of the base. The connecting plate is mounted on the first end of the shaft and rotates with the shaft. The mechanical lock is mounted on the base. The mechanical lock includes a lock seat mounted on the base and protruding from a first side and a second side of the base, a rotary release assembly inserted into the lock seat and extending from the lock seat protruding from the second side of the base, and a lock sleeve fitted over the lock seat protruding from the second side of the base and rotatable around that position. The lock sleeve can rotate to a locked position engaging with the connecting plate or an unlocked position releasing from the connecting plate. The lock sleeve and the rotary release assembly are intermittently linked. When the rotary release assembly rotates to a preset angle during the switching between the locked and unlocked positions, it triggers the rotation of the lock sleeve. The electromagnetic push rod is mounted on the second side of the base. The first end of the connecting rod is fitted and connected to the lock sleeve, and the opposite second end of the connecting rod is fitted and connected to the telescopic end of the electromagnetic push rod. The telescopic end can drive the lock sleeve to rotate to the unlock position or the lock position through the connecting rod. When the telescopic end drives the lock sleeve to rotate from the unlock position to the lock position, the angle of rotation is matched with the preset angle.

[0007] Compared with the prior art, the armored truck double-security door lock of this utility model also includes an electromagnetic push rod mounted on the second side of the base and a connecting rod whose first end is connected to the lock sleeve. The second end of the connecting rod is connected to the telescopic end of the electromagnetic push rod. The lock sleeve and the rotary release assembly are intermittently linked. This means that the rotary release assembly needs to rotate to a preset angle before it can rotate the lock sleeve during the switching between the locked and unlocked positions. The telescopic end can drive the lock sleeve to rotate to the unlocked or locked position through the connecting rod. The angle at which the telescopic end drives the lock sleeve to rotate from the unlocked position to the locked position matches the preset angle. Therefore, the armored truck double-security door lock of this utility model has the advantages of dual-drive mode and dual security.

[0008] Preferably, the lock sleeve is provided with a first blocking structure and a second blocking structure spaced apart from each other along the rotation direction of the lock sleeve, and the rotary unlocking assembly is provided with a first matching structure and a second matching structure spaced apart from each other; when the second matching structure abuts against the second blocking structure, the first matching structure and the first blocking structure move away from each other; when the first blocking structure abuts against the first matching structure, the second blocking structure and the second matching structure move away from each other.

[0009] Preferably, the end of the lock sleeve has a through hole for the rotary release assembly to extend out and a recessed groove for expanding the through hole, the first abutting structure and the second abutting structure protruding from the recessed groove, and the first and second abutting structures located in the recessed groove.

[0010] Preferably, a lateral channel is provided at the position where the lock seat is exposed on the second side of the base body, and a helical spring for resetting the rotary release assembly is also sleeved at the position where the lock seat is exposed on the second side of the base body. The two ends of the helical spring pass through the lateral channel and are assembled and connected to the rotary release assembly.

[0011] Preferably, the connecting plate has an arc-shaped notch on its periphery, and the locking sleeve has an arc-shaped protrusion for engaging with the arc-shaped notch. The locking sleeve is locked or unlocked to the connecting plate by means of the engagement and disengagement of the arc-shaped protrusion and the arc-shaped notch.

[0012] Preferably, the thickness of the arc-shaped protrusion is greater than that of the arc-shaped notch, and the arc-shaped protrusion has an avoidance notch for reducing the clearance between the arc-shaped protrusion and the arc-shaped notch.

[0013] Preferably, the end of the locking sleeve is provided with a cylindrical structure that is eccentric to the rotation center line of the locking sleeve and is hollowly arranged. The first end of the connecting rod is provided with a first fitting hole, and the first end of the connecting rod is fitted over the cylindrical structure through the first fitting hole. A screw extends into the hollow part of the cylindrical structure and is threadedly connected to the cylindrical structure, so that the first end of the connecting rod is located between the locking sleeve and the screw at the upper axial limit of the cylindrical structure.

[0014] Preferably, the first fitting hole is an elongated hole, and the cylindrical structure is placed in the first fitting hole with a clearance fit and can slide along the length direction of the first fitting hole.

[0015] Preferably, the screw is further fitted with a washer located between the screw and the connecting rod.

[0016] Preferably, a second mounting hole is provided on the second end of the connecting rod, and the end of the telescopic end is bent vertically to form a bent portion that is rotatably inserted into the second mounting hole.

[0017] Preferably, the connecting plate is provided with two mounting posts for assembling traction components, which are adjacent to the periphery of the connecting plate and are opposite to each other with the rotation center line of the connecting plate as the center.

[0018] Preferably, an operating handle is hinged to the second end of the shaft, and the operating handle can be extended or retracted into a recessed cavity opened on the first side of the base. Attached Figure Description

[0019] Figure 1 This is a perspective view of the double-insurance door lock of the armored truck of this utility model when the lock sleeve is in the locked position.

[0020] Figure 2 yes Figure 1 The diagram shown is an exploded 3D view of the double-locked doors of the armored truck.

[0021] Figure 3 yes Figure 1 The image shown is a 3D view of the armored truck with its double-locked doors positioned at another angle.

[0022] Figure 4 yes Figure 1 The diagram shows the double-locked doors of the armored truck as viewed in the direction indicated by arrow A.

[0023] Figure 5 yes Figure 4 Based on this, a plan view is shown when the lock is in the unlocked position.

[0024] Figure 6 This is a perspective view of the mechanical lock in the double-insurance door lock of the armored truck of this utility model.

[0025] Figure 7 yes Figure 6 The mechanical lock shown is in a three-dimensional view from another angle.

[0026] Figure 8 yes Figure 7 The diagram shown is an exploded 3D view of the mechanical lock.

[0027] Figure 9 This is a perspective view of the connecting rod in the double-lock door lock of the armored truck of this utility model. Detailed Implementation

[0028] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0029] Please see Figures 1 to 3 The armored truck double-lock 100 of this utility model includes a base 10, a shaft 20, a connecting plate 30, a mechanical lock 40, an electromagnetic push rod 50, and a connecting rod 60. The connecting rod 60 has a first end 61 and a second end 62. The first end 61 of the connecting rod 60 is assembled and connected to the lock sleeve 43 described below, and the second end 62 of the connecting rod 60 is assembled and connected to the telescopic end 51 of the electromagnetic push rod 50. Optionally, in... Figure 9 In the middle, the second end 62 of the connecting rod 60 is wider than the first end 61 of the connecting rod 60, so that a step 63 is formed between the first end 61 and the second end 62 of the connecting rod 60, as shown in the figure. Figure 9 As shown; obviously, depending on actual needs, the first end 61 and the second end 62 of the connecting rod 60 can also be arranged with the same width, so it is not necessary to consider the following. Figure 9 The above is the limit.

[0030] Meanwhile, the shaft 20 is rotatably inserted into the base 10, and the shaft 20 is also exposed from the first side 11 and the second side 12 opposite to each other on the base 20, so as to meet the needs of assembling and connecting the shaft 20 with the connecting plate 30 and the operating handle 70 described below. The connecting plate 30 is assembled on the first end 21 of the shaft 20 and rotates with the shaft 20.

[0031] Furthermore, the mechanical lock 40 is mounted on the base 10. The mechanical lock 40 includes a lock base 41, a rotary release assembly 42, and a lock sleeve 43. The lock base 41 is mounted on the base 10 and is supported by the base 10. The lock base 41 also protrudes from the first side 11 and the second side of the base 10 to meet the operator's need to insert or remove the key from the first side 11 of the base 10 to the rotary release assembly 42. The rotary release assembly 42 is inserted into the lock base 41 and also protrudes from the second side 12 of the base 10 at position 41a, as shown in the figure. Figure 8This is to meet the cooperation requirements of the rotary release assembly 42 and the locking sleeve 43. The locking sleeve 43 is fitted over the lock seat 41 at the position 41a exposed on the second side 12 of the seat body 10. The locking sleeve 43 can also rotate around this position 41a so that the locking sleeve 43 can rotate to the locking position where it is locked with the connecting plate 30 (see...). Figure 4 (as shown) or the release position that releases from the connecting plate 30 (see) Figure 5 (As shown); the locking sleeve 43 is also intermittently linked with the rotary release assembly 42 so that during the switching between the locked position and the unlocked position, the rotary release assembly 42 needs to rotate to a preset angle before the locking sleeve 43 can be rotated, thus realizing the intermittent linkage between the locking sleeve 43 and the rotary release assembly 42.

[0032] The electromagnetic push rod 50 is mounted on the second side 12 of the base 10, with the base 10 providing support for the electromagnetic push rod 50 and ensuring that the electromagnetic push rod 50 is arranged on the same side as the connecting plate 30. The telescopic end 51 of the electromagnetic push rod 50 can drive the locking sleeve 61 to rotate via the connecting rod 60. Figure 5 The release position shown or Figure 4 The locking position is shown; for example, in combination. Figure 4 and Figure 5 As an example, during the extension and sliding process of the telescopic end 51 of the electromagnetic push rod 50, the extended and sliding telescopic end 51 drives the locking sleeve 61 to rotate clockwise via the connecting rod 60, causing the locking sleeve 61, which rotates clockwise, to be released from the connecting plate 30 and thus remain in a state of... Figure 5 The release position is shown; conversely, when Figure 5 The telescopic end 51 of the electromagnetic push rod 50 shown is directed towards... Figure 4 During switching, the telescopic end 51 of the electromagnetic push rod 50 retracts and slides. The retracting telescopic end 51 drives the locking sleeve 61 to rotate counterclockwise via the connecting rod 60, thereby locking the locking sleeve 61, which rotates counterclockwise, into a position where it is locked with the connecting plate 30. Figure 4 The locking position is shown. Furthermore, the angle at which the telescopic end 51 rotates the locking sleeve 43 from the unlocking position to the locking position matches a preset angle. For example, the angle at which the telescopic end 51 rotates the locking sleeve 43 from the unlocking position to the locking position is equal to the preset angle, or the angle at which the telescopic end 51 rotates the locking sleeve 43 from the unlocking position to the locking position is slightly greater than the preset angle, with the difference between the two within 1 degree. This ensures that the telescopic end 51 does not affect the rotating unlocking assembly 42 during the switching process between the unlocking and locking positions, and does not cause the rotating unlocking assembly 43 to rotate. It is worth noting that since the specific structure and working principle of the electromagnetic push rod 50 are well known in the art, they will not be described in detail here. More specifically, see the description below.

[0033] like Figure 7 and Figure 8 As shown, as an example, the lock sleeve 43 is provided with a direction of rotation along the lock sleeve 43 (see...). Figure 8 The first blocking structure 431 and the second blocking structure 432 are spaced apart from each other (in the direction indicated by the dashed arrow and in the opposite direction); correspondingly, the rotary unlocking assembly 42 is provided with a first locking structure 421 and a second locking structure 422 that are spaced apart from each other; therefore, when the second locking structure 422 abuts against the second blocking structure 432, the first locking structure 421 and the first blocking structure 431 are far apart from each other, as shown in the state below. Figure 5 As shown; when the first blocking structure 431 and the first gearing structure 421 are in contact, the second blocking structure 432 and the second gearing structure 422 move away from each other, as shown in the diagram. Figure 4 As shown. Therefore, this design effectively ensures the reliability of the intermittent linkage between the locking sleeve 43 and the rotary unlocking assembly 42. Furthermore, in Figure 7 and Figure 8 As an example, the end 43a of the lock sleeve 43 has a through hole 434 for the rotation release assembly 42 to extend out and a recessed groove 435 for expanding the through hole 434. At this time, the first abutting structure 431 and the second abutting structure 432 protrude into the recessed groove 435, and the first matching structure 421 and the second matching structure 422 are located in the recessed groove 435. See the diagram. Figure 7 As shown, this design makes the fit between the locking sleeve 43 and the rotary unlocking assembly 42 more compact. Furthermore, combined with... Figure 1 , Figure 2 , Figure 4 and Figure 5 As an example, an arc-shaped notch 311 is provided on the periphery 31 of the connecting plate 30, and an arc-shaped protrusion 431 is provided on the locking sleeve 43 for engaging with the arc-shaped notch 311, so that the locking sleeve 43 and the connecting plate 30 can be locked or unlocked by means of the engagement and disengagement of the arc-shaped protrusion 431 and the arc-shaped notch 311; alternatively, in Figure 7 and Figure 8 In this example, the thickness of the arc-shaped protrusion 433 is greater than that of the arc-shaped notch 311. The arc-shaped protrusion 433 is provided with a clearance notch 4331 to reduce the fit between the arc-shaped protrusion 433 and the arc-shaped notch 311. This design allows the locking sleeve 43 to switch from the locked position to the unlocked position by only rotating a small angle to separate the arc-shaped protrusion 433 from the arc-shaped notch 311, providing more clearance space for the rotation of the connecting plate 30.

[0034] like Figure 8As shown, a lateral channel 411 is provided on the position 41a of the lock seat 41 exposed on the second side 12 of the seat body 10. A coil spring 44 for resetting the rotary release assembly 42 is also sleeved on the position 41a of the lock seat 41 exposed on the second side 12 of the seat body 10. The two ends 441 of the coil spring 44 pass through the lateral channel 411 and are assembled and connected to the rotary release assembly 42. When the operator releases the key inserted into the rotary release assembly 42, the coil spring 44 drives the key to automatically return to the initial position along with the rotary release assembly 42, thereby facilitating the operator to pull the key out of the rotary release assembly 42.

[0035] Combination Figure 2 , Figure 7 , Figure 8 and Figure 9 As an example, the end 43a of the locking sleeve 43 is provided with a rotation center line 44 relative to the locking sleeve 43 (see Figure 4 and Figure 5 A cylindrical structure 45 is eccentrically arranged and hollow. A first fitting hole 611 is provided on the first end 61 of the connecting rod 60, and the first end 61 of the connecting rod 60 is fitted onto the cylindrical structure 45 via the first fitting hole 611. A screw 46 extends into the hollow part 451 of the cylindrical structure 45 and is threadedly connected to the cylindrical structure 45, so that the upper axial limit of the first end 61 of the connecting rod 60 is located between the locking sleeve 43 and the screw 46, and also allows the first end 61 of the connecting rod 60 to rotate relative to the cylindrical structure 45. Optionally, in... Figure 9 In this example, the first mounting hole 611 is an elongated hole, and the cylindrical structure 45 is placed in the first mounting hole 611 with a clearance fit and can slide along the length direction of the first mounting hole 611 to meet the requirement that the first end 61 of the connecting rod 60 can also slide relative to the cylindrical structure 45; in addition, a washer 47 is also sleeved in the screw 46, which is located between the screw 46 and the connecting rod 60 to improve the reliability of limiting the connecting rod 70.

[0036] Combined Figure 2 , Figure 7 , Figure 8 and Figure 9 As an example, a second mounting hole 621 is also provided on the second end 62 of the connecting rod 60. The end of the telescopic end 51 of the electromagnetic push rod 50 is bent vertically to form a bent portion 511 that is rotatably inserted into the second mounting hole 621, so that the telescopic end 51 can rotate relative to the second end 62 of the connecting rod 60.

[0037] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, as an example, the connecting plate 30 is provided with two mounting posts 32 adjacent to the periphery 31 of the connecting plate 30 for assembling the traction member 200. The two mounting posts 32 are opposite to each other with the rotation center line 33 of the connecting plate 30 as the center; so that the connecting plate 30 can synchronously drive the two traction members 200 moving in opposite directions to pull or release during the rotation process; for example, in Figure 4 In the middle, when the connecting plate 30 rotates clockwise, it drives the two traction members 200, which are facing opposite directions, to move in a pulling motion; Figure 5 In the middle, when the connecting plate 30 rotates counterclockwise, it causes the two traction members 200, which are facing opposite directions, to move out of their original positions. Additionally, in... Figure 3 In the middle, an operating handle 70 is hinged to the second end 22 of the shaft 20. The operating handle 70 can be extended or retracted into the recessed cavity 13 opened on the first side 11 of the seat 10. The operating handle 70 can be extended from the seat 10 when in use and stored in the seat 10 when not in use, which is more concise. In addition, when the lock sleeve 43 and the connecting plate 30 are unlocked, the operating handle 70 extended from the seat 10 can be used to drive the shaft 20 and the connecting plate 30 to rotate together, thereby realizing the purpose of unlocking the door.

[0038] Compared with the prior art, the armored truck double-security door lock 100 of this utility model also includes an electromagnetic push rod 50 mounted on the second side 12 of the base 10 and a connecting rod 60 whose first end 61 is assembled with the lock sleeve 43. The second end 62 of the connecting rod 60 is assembled with the telescopic end 51 of the electromagnetic push rod 50. The lock sleeve 43 and the rotary release assembly 42 are intermittently linked. This means that the rotary release assembly 42 needs to rotate to a preset angle during the switching between the locked and unlocked positions before it can drive the lock sleeve 43 to rotate. The telescopic end 51 can drive the lock sleeve 43 to rotate to the unlocked or locked position through the connecting rod 60. The angle at which the telescopic end 51 drives the lock sleeve 43 to rotate from the unlocked position to the locked position matches the preset angle. Therefore, the armored truck double-security door lock 100 of this utility model has the advantages of dual-drive mode and double security.

[0039] It should be noted that the rotary release assembly 42 is well known in the art and will not be described in detail here. Furthermore, when the electromagnetic push rod 50 is energized, the telescopic end 51 extends and slides; when de-energized, the telescopic end 51 automatically retracts and resets due to the return spring within the electromagnetic push rod 50, thus allowing the electromagnetic push rod 50 to rotate the lock sleeve 43 to the locked position when not in operation. Additionally, when the key inserted into the rotary release assembly 42 is used to release the lock, the rotary release assembly 42, while rotating the lock sleeve 43, also drives the connecting rod 30 and the telescopic end 51 to move together. Moreover, the base 10 can be made of stretched aluminum alloy, the operating handle 70 can be made of zinc alloy, and the connecting rod 60 can be made of low-carbon alloy steel, which provides advantages such as high salt spray resistance, UV resistance, and resistance to accelerated aging, achieving a waterproof IP67 rating. Finally, the more specific structure and working principle of the electromagnetic push rod 50 are well known in the art and will not be described in detail here.

[0040] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.

Claims

1. A double safety door lock for a cash van, comprising a housing, a shaft rotatably disposed in the housing and protruding from opposite first and second sides of the housing, a connecting plate assembled on a first end of the shaft and rotatable with the shaft, and a mechanical lock assembled on the housing, the mechanical lock comprising a lock housing assembled on the housing and protruding from the first and second sides of the housing, a rotating release assembly disposed in the lock housing and protruding from the lock housing at a position on the second side of the housing, and a lock sleeve sleeved on the lock housing at the position on the second side of the housing and rotatable about the position, the lock sleeve being rotatable to a locking position for locking with the connecting plate or a releasing position for releasing the connecting plate, characterized in that, The armored vehicle's double-security door lock also includes an electromagnetic push rod mounted on the second side of the base and a connecting rod whose first end is connected to the lock sleeve. The second end of the connecting rod is connected to the telescopic end of the electromagnetic push rod. The lock sleeve and the rotary release assembly are intermittently linked. When the rotary release assembly rotates to a preset angle during the switching between the locked and released positions, it causes the lock sleeve to rotate. The telescopic end can drive the lock sleeve to rotate to the released or locked position via the connecting rod. The angle at which the telescopic end drives the lock sleeve to rotate from the released position to the locked position matches the preset angle.

2. The armored truck double-security door lock according to claim 1, characterized in that, The lock sleeve is provided with a first blocking structure and a second blocking structure that are spaced apart from each other along the rotation direction of the lock sleeve. The rotary unlocking assembly is provided with a first matching structure and a second matching structure that are spaced apart from each other. When the second matching structure blocks the second blocking structure, the first matching structure and the first blocking structure move away from each other. When the first blocking structure blocks the first matching structure, the second blocking structure and the second matching structure move away from each other.

3. The armored truck double-security door lock according to claim 2, characterized in that, The end of the lock sleeve has a through hole for the rotary release assembly to extend out and a recessed groove for expanding the through hole. The first abutting structure and the second abutting structure protrude from the recessed groove, and the first and second abutting structures are located in the recessed groove.

4. The armored truck double-security door lock according to claim 1, characterized in that, A lateral channel is provided at the position where the lock seat is exposed on the second side of the base body. A helical spring for resetting the rotary release assembly is also sleeved at the position where the lock seat is exposed on the second side of the base body. The two ends of the helical spring pass through the lateral channel and are assembled and connected to the rotary release assembly.

5. The double-security door lock for armored trucks according to claim 1, characterized in that, The connecting plate has an arc-shaped notch on its periphery, and the locking sleeve has an arc-shaped protrusion for engaging with the arc-shaped notch. The thickness of the arc-shaped protrusion is greater than that of the arc-shaped notch, and the arc-shaped protrusion has a clearance notch to reduce the clearance between the arc-shaped protrusion and the arc-shaped notch. The locking sleeve is locked or unlocked with the connecting plate by means of the engagement and disengagement of the arc-shaped protrusion and the arc-shaped notch.

6. The armored vehicle double-security door lock according to claim 1, characterized in that, The end of the lock sleeve is provided with a cylindrical structure that is eccentric to the rotation center line of the lock sleeve and is hollow. The first end of the connecting rod is provided with a first fitting hole, and the first end of the connecting rod is fitted over the cylindrical structure through the first fitting hole. A screw is inserted into the hollow part of the cylindrical structure and threadedly connected to the cylindrical structure, so that the first end of the connecting rod is located between the locking sleeve and the screw at the upper axial limit of the cylindrical structure.

7. The armored vehicle double-security door lock according to claim 6, characterized in that, The first fitting hole is an elongated hole, and the cylindrical structure is placed in the first fitting hole with a clearance fit and can slide along the length direction of the first fitting hole.

8. The armored vehicle double-security door lock according to claim 6, characterized in that, The screw is also fitted with a washer located between the screw and the connecting rod.

9. The armored truck double-security door lock according to claim 6, characterized in that, The second end of the connecting rod is also provided with a second mounting hole, and the end of the telescopic end is bent vertically to form a bent portion that can be rotatably inserted into the second mounting hole.

10. The armored vehicle double-security door lock according to claim 1, characterized in that, The connecting plate is provided with two mounting posts adjacent to the periphery of the connecting plate for assembling the traction component. The mounting posts are opposite each other with the rotation center line of the connecting plate as the center. An operating handle is hinged to the second end of the shaft. The operating handle can be extended or retracted into a recessed cavity opened on the first side of the seat.

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