An anti-shock padlock

Abstract

The present application is a kind of anti-shock padlock, including the general padlock shell, lock tongue, dial and lock cylinder, and the fixed cylinder A, fixed cylinder B and piston are arranged on the outer wall of the shell, which is matched with the fixed cylinder A, fixed cylinder B and lock cylinder, so that the rotation of the lock cylinder is limited before the key is inserted, and the lock cylinder can be smoothly rotated when the key is inserted, to achieve the purpose of opening and closing. The present application only needs to set a simple anti-shock structure on the outside of the padlock, without changing the internal structure of the general padlock, which maximizes the original characteristics of the padlock, such as small size, simple structure and low cost, without occupying the limited space in the car. In addition, the added anti-shock structure is less, the connection method is simple, and the anti-shock ability is more excellent, which is suitable for use in special vehicles, off-road vehicles and the like.

Description

Technical Field

[0001] This disclosure relates to locks, specifically a shock-resistant box lock. Background Technology

[0002] The statements in this section are merely background information relating to this disclosure, and these statements may constitute prior art. In the process of developing this invention, the inventors discovered at least the following problems in the prior art.

[0003] Ordinary box locks, such as Figure 2 As shown, the main structure consists of a shell, bolt, lever, and lock cylinder. The lock cylinder is rotated by a key, which in turn controls the extension and retraction of the bolt via the lever. Figure 3 As shown in Figure 4, this achieves locking. Box locks are characterized by their small size, simple structure, and low cost, and have always been active in the market.

[0004] However, this type of lock is not suitable for locking external toolboxes or their components on special vehicles, off-road vehicles, etc. The reason is that when the vehicle body is subjected to intermittent or continuous severe vibrations and impacts, the latch of a typical lock, whether in its extended limit position (e.g., ...), will not function properly. Figure 3 (as shown), or it is in the retraction limit position (such as...) Figure 4 As shown in the image, although this position is a dead point, it is not shockproof. The bolt will be affected by it and rotate, causing the lock to unlock itself.

[0005] To enable toolbox locks to be used on the exterior of special vehicles, the internal structure of these locks has been modified, resulting in various shock-resistant designs. These locks prevent the vehicle body from being subjected to intermittent or continuous intense vibrations and impacts, ensuring the lock will not automatically unlock and fail. For example, patent application CN201510981572.7, entitled "A Special Vehicle Door Lock with a Ratchet Clamping and Locking Mechanism," employs a ratchet clamping and locking mechanism that clamps onto the locking pin mounted on the vehicle body. The ratchet stop blocks engage with the ratchet teeth on each locking block to form a half-lock and full-lock position, preventing the locking mechanism from disengaging even if the handle fails or the door deforms. Another example is patent application 202210883917.5, entitled "A Novel Adjustable Special Vehicle Door Lock," which uses a ratchet mechanism for shock protection. The locking action is achieved through the interaction of the locking pin and the keyway, resulting in a wide range of adjustable locking force and uniform force distribution. Simultaneously, the locking force of the door lock can be increased by adjusting the size of the latch and the size and number of the liner plates. Alternatively, patent application number 201910328429.6, entitled "A ratchet and pawl engagement structure and a military off-road vehicle door lock having the same structure," improves the structural strength of the door lock by redesigning the ratchet and pawl engagement structure. It also uses a microswitch to determine the locking status of the lock body, allowing for manual maintenance of the locking effect. This makes it suitable for door locks that have undergone high-intensity impacts to maintain a locked state.

[0006] However, a careful examination of the aforementioned and similar patents reveals that these types of shock-resistant locks all achieve their shock-resistant function by incorporating a ratchet locking mechanism within the lock housing, which engages with a locking pin or bolt. However, firstly, the ratchet locking mechanism and its associated components are numerous, resulting in a bulky internal structure and a significantly larger overall size for the improved shock-resistant lock compared to standard locks, thus encroaching on the limited installation space available on the vehicle. Secondly, not only is the ratchet locking mechanism complex, but related structures (such as the locking tongue) also require modifications, leading to a more complex internal structure and connection method. Under severe vibration and impact on the vehicle body, this complex structure inevitably increases the failure rate, making it unsuitable for use on special vehicles or similar applications. Summary of the Invention

[0007] In view of the above problems, the purpose of this invention is to solve some of the problems in the prior art, or at least alleviate these problems.

[0008] A shockproof box lock includes a housing and a bolt, a lever, and a lock cylinder disposed inside the housing; the lever cooperates with the first end of the lock cylinder and controls the bolt to extend or retract from the housing by rotating the lock cylinder; it also includes a fixed cylinder A, a piston, and a fixed cylinder B;

[0009] The fixed cylinder A is located on the outer wall of the outer shell and is adapted to the first end of the piston, enabling the piston to move only along the axial direction of the lock cylinder; the second end of the piston is provided with a hole adapted to the second end of the lock cylinder to restrict the rotation of the lock cylinder; the piston is provided with an elastic element for resetting the second end of the piston to the limiting element of the fixed cylinder B when the piston is not subjected to external force.

[0010] The fixed cylinder B has a first end connected to the fixed cylinder A, and a second end provided with a limiting member to prevent the piston from being bounced away from the fixed cylinder B by the elastic member.

[0011] Furthermore, the limiting member is at least a pair of ears, symmetrically arranged at the second end of the fixing cylinder B, for matching with the groove provided on the outer side of the key tip of the key.

[0012] Furthermore, the shockproof lock also includes a key; the key is larger at the front end and smaller at the back end, with the key tip being larger than the back end, allowing the key tip to rotate after passing over the lug; the key tip is adapted to the second end of the lock cylinder to rotate the lock cylinder.

[0013] Optionally, the first end of the piston is provided with a flat head that is adapted to the flat hole of the fixed cylinder A.

[0014] Optionally, the elastic element is a spring, located between the paddle and the piston, used to reset the second end of the piston to the limiting element of the fixed cylinder B when the piston is not subjected to external force, and to adapt to the second end of the lock cylinder.

[0015] Furthermore, both the second end of the piston and the key end are provided with square holes, which are adapted to the square head of the second end of the lock cylinder.

[0016] Optionally, the paddle has a flat hole that matches the flat square at the first end of the lock cylinder.

[0017] The fixed cylinder A and the fixed cylinder B are detachably connected.

[0018] Furthermore, the fixed cylinder A is provided with bolts, and the cylinder wall of the fixed cylinder B is provided with holes that are compatible with the bolts.

[0019] The present invention has the following beneficial effects:

[0020] 1. This application only requires setting a fixed cylinder A, a fixed cylinder B and a piston on the outside of the lock, without changing the internal structure of a general lock, thus preserving the original characteristics of the lock such as small size, simple structure and low cost to the greatest extent; in addition, the number of added anti-vibration components is small, the connection method is simple, and the anti-vibration capability is also better, making it suitable for use in special vehicles, off-road vehicles, etc.

[0021] 2. This application provides an ear on the fixed cylinder B, which cooperates with the groove of the key and the shock-resistant structure, thereby making the unlocking and locking operations more accurate, convenient and labor-saving. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of a common box lock;

[0024] Figure 3 This is a diagram showing the bolt of a standard box lock extended to its limit.

[0025] Figure 4 This is a diagram showing the bolt of a standard box lock retracted to its limit position.

[0026] Figure 5 This is a schematic diagram of the structure of the first end of the piston;

[0027] Figure 6 This is a schematic diagram of the structure of the second end of the piston;

[0028] Figure 7 This is a schematic diagram of the structure when the square hole of the piston mates with the square head of the lock cylinder;

[0029] Figure 8 This is a schematic diagram of the structure when the piston's square hole disengages from the square head of the lock cylinder;

[0030] Figure 9 A perspective view of the piston being pushed after the key is inserted;

[0031] Figure 10 This is a diagram showing the situation where the groove of the key is not aligned with the ear of the fixing cylinder B when the key is inserted.

[0032] Figure 11 This is a schematic diagram showing the groove of the key aligned with the ear of the fixing cylinder B when the key is inserted.

[0033] Figure 12 This is a diagram showing the key after it has been inserted and rotated 180 degrees.

[0034] Figure 13 This is a schematic diagram showing the groove of the key aligned with the ear of the fixed cylinder B when the key is pulled out.

[0035] Figure 14 This is a diagram showing the key after it has been removed.

[0036] Figure 15 This is a schematic diagram of a key.

[0037] Wherein: 1-piston; 2-lock cylinder; 3-fixed cylinder A; 4-bolt; 5-spring; 6-fixed cylinder B; 7-key; 8-ear; 9-key end; 10-outer shell; 11-lock tongue; 12-paddle. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings. The embodiments of the present invention are only used to illustrate the present invention and not to limit the present invention. Various substitutions and modifications made based on ordinary technical knowledge and common practices in the art without departing from the technical concept of the present invention should be included within the scope of the present invention.

[0039] After in-depth research into various types of shock-resistant locks, the applicant discovered that most inventors, when designing shock-resistant locks, habitually focused their improvements on the internal structure of the lock, creating a technological bias in the field. This is understandable, as improvements to these locks primarily involve ratchet mechanisms and related structures. However, the connections in these structures are quite intricate and easily affected by the external environment. Vehicles requiring shock resistance are mostly transportation vehicles such as special vehicles and off-road vehicles, whose external environments are far more complex than the static internal environments of buildings. Therefore, it's understandable that most inventors unconsciously focus their design efforts on the internal structure of these locks to avoid the impact of complex external environments. However, this also directly results in the vast majority of shock-resistant locks being large, taking up vehicle space, and unsuitable for use in such vehicles.

[0040] In order to achieve earthquake resistance while retaining the advantages of the original lock, the applicant designed an earthquake-resistant lock with the earthquake-resistant structure located on the outside of the lock.

[0041] like Figures 1 to 8 As shown, a shockproof box lock includes a housing 10 and a bolt 11, a lever 12, and a lock cylinder 2 disposed inside the housing 10; the lever 12 cooperates with the first end of the lock cylinder 2, and the bolt 11 is extended or retracted from the housing 10 by rotating the lock cylinder 2; it also includes a fixed cylinder A 3, a piston 1, and a fixed cylinder B 6;

[0042] The fixed cylinder A3 is disposed on the outer wall of the outer shell 10 and is adapted to the first end of the piston 1, enabling the piston 1 to move only along the axial direction of the lock cylinder 2; the second end of the piston 1 is provided with a hole adapted to the second end of the lock cylinder 2 to restrict the rotation of the lock cylinder 2; the piston 1 is provided with an elastic element for resetting the second end of the piston 1 to the limiting element of the fixed cylinder B6 when the piston 1 is not subjected to external force.

[0043] The first end of the fixed cylinder B6 is connected to the fixed cylinder A3, and the second end is provided with a limiting member to prevent the piston 1 from being bounced away from the fixed cylinder B6 by the elastic member.

[0044] The shock resistance of this application is achieved by the piston 1 restricting the rotation of the lock cylinder 2, thereby restricting the rotation of the lever 12, to prevent the lever 12 from leaving its dead position during severe vibration and impact, which would cause the bolt 11 to move. During unlocking, simply overcoming the elastic force of the elastic element and inserting the key 7 into the fixed cylinder B will allow the piston 1 to no longer restrict the rotation of the lock cylinder 2. The key 7, in conjunction with the lock cylinder 2, will then rotate the lock cylinder 2, thus opening and closing the lock.

[0045] The lever 12 can be fixedly connected to the lock cylinder 2, or it can be fitted through a hole. For example... Figure 2 As shown, the lever 12 has a flat hole that matches the flat square at the first end of the lock cylinder 2. The flat square of the lock cylinder 2 engages with the flat hole of the lever 12. Rotating the lock cylinder 2 with the key 7 drives the lever 12, which in turn pushes the bolt 11 to slide left and right, thus opening and closing. The outer casing 10 of the above structure has the structure of a typical box lock, and the lever 12 can be connected to the lock cylinder 2 and bolt 11 in various ways, which is existing technology.

[0046] like Figure 1 As shown, the fixed cylinder A3 can be fixed to the outer wall of the second end of the lock cylinder 2 where it protrudes from the outer casing 10, and is connected to the fixed cylinder B6. The fixed cylinder A3 and the fixed cylinder B6 can be fixedly connected by welding or other methods. Alternatively, the fixed cylinder A3 and the fixed cylinder B6 can be detachably connected to facilitate repair in case of internal structural damage. Figure 1 As shown in Figures 7, 8, or 9, the fixing cylinder A3 is equipped with bolts 4, and the cylinder wall of the fixing cylinder B6 has holes that mate with the bolts 4. The fixing cylinder B6 can be connected to the fixing cylinder A3 via bolts 4, thereby achieving detachable fixing. Of course, various existing methods such as snap-fit ​​connections can also be used to achieve detachable connection.

[0047] In this application, if piston 1 rotates around its central axis, it will drive lock cylinder 2 to rotate, or be driven to rotate by lock cylinder 2, thus losing its function of restricting the rotation of lock cylinder 2. Therefore, by ensuring that the fixed cylinder A3 is always matched with the first end of piston 1, the rotation of piston 1 is restricted, allowing it to move only axially. Figure 1 As shown in Figure 5, the first end of the piston 1 has a flat head that matches the flat hole of the fixed cylinder A3. The flat head of the first end of the piston 1 is always engaged with the flat hole of the fixed cylinder A3, thereby allowing the piston 1 to move only axially. Of course, bolts can also be provided on the fixed cylinder A3 to match the corresponding holes of the piston 1, allowing it to move axially. The fixed cylinder A3 can employ various existing methods to restrict the rotation of the piston 1.

[0048] The purpose of providing an elastic element at piston 1 is to consistently provide outward elastic force to the piston, so that when key 7 does not apply force to piston 1, it can quickly eject piston 1, allowing its second end to engage with the second end of lock cylinder 2, thereby restricting the rotation of lock cylinder 2. The elastic element can be a spring 5, etc., and there are various ways to position it on piston 1. Figure 1As shown, the elastic element is a spring 5, located between the lever 12 and the piston 1. It is used to reset the second end of the piston 1 to the limiting position of the fixed cylinder B6 when the piston 1 is not subjected to external force, and to adapt to the second end of the lock cylinder 2 to limit the rotation of the lock cylinder 2. The inner hole of the first end of the piston 1 can be a circular hole. One end of the spring 5 is located inside the circular hole of the piston 1, and the other end is connected to or in contact with the lever 12 to install the spring 5. Alternatively, one end of the spring 5 can be fixed (e.g., sleeved) to the outer wall of the piston 1, and the other end can be connected to or in contact with the fixed cylinder A3. Or, when the fixed cylinder B6 is fixedly connected to or detachably connected to the fixed cylinder A3, the other end of the piston 1 is connected to the inner wall of the fixed cylinder B6 so that the piston 1 is always subjected to the spring force.

[0049] The second end of piston 1 and the second end of lock cylinder 2 can be matched in various ways; correspondingly, the key end 9 of key 7 also adopts the same matching method. For example... Figure 1 As shown in diagrams 6, 7, or 15, both the second end of the piston 1 and the key end 9 have square holes that fit into the square head of the second end of the lock cylinder 2. These holes, along with the spring 5, ensure that when the key 7 is not inserted, the piston 1 remains engaged with the lock cylinder 2 under the force of the spring, thus restricting the rotation of the lock cylinder 2. When the key 7 is inserted, the key 7 replaces the piston 1 and engages with the second end of the lock cylinder 2. Rotating the key 7 causes the lock cylinder 2 to rotate.

[0050] Since piston 1 is always under the elastic force of spring 5, to prevent it from being ejected from the fixed cylinder B6 and unable to engage with the square head of lock cylinder 2, the applicant has provided a limiting member at the second end of the fixed cylinder B6 to limit the axial movement distance of piston 1. This ensures that, under the action of spring 5, the square hole at the second end of piston 1 always engages with the square head of lock cylinder 2. Only when key 7 is inserted into the fixed cylinder B6 will the square head of lock cylinder 2 separate from the square hole of piston 1 and engage with the square hole of key tip 9, allowing key 7 to rotate lock cylinder 2.

[0051] The limiting element can have various structures and can be located on the second end of the fixed cylinder B6, or within its opening. For example... Figure 1 As shown in Figure 7, the limiting element can be at least one lug to prevent the piston 1 from being ejected from the fixed cylinder B6 by the spring 5. However, the applicant has found in practice that although the limiting element can prevent the piston 1 from being ejected, the key 7 still needs to maintain pressure on the spring 5 when it is turned after being inserted into the fixed cylinder B6. Furthermore, because the square head of the lock cylinder 2 is adapted to the piston 1 before the key 7 is inserted, the square head of the lock cylinder 2 does not expose the piston 1 or only slightly exposes the piston 1, such as... Figure 7 As shown, this makes it difficult for the key tip 9 to align with the square head of the lock cylinder 2 when the key 7 is inserted, thus increasing the difficulty of operation.

[0052] To solve the above problems, such as Figure 1As shown in Figure 8, the limiting member consists of at least a pair of ears 8, symmetrically arranged at the second end of the fixing cylinder B6, for fitting into the groove provided on the outer side of the key tip 9 of the key 7. The shockproof lock also includes a key 7; the key 7 is larger at the front end and smaller at the rear end, with its key tip 9 being larger than the rear end, allowing the key tip 9 to rotate after passing over the ears 8; the key tip 9 fits into the second end of the lock cylinder 2 to rotate the lock cylinder 2.

[0053] like Figure 1 As shown, the limiting element is a pair of ears 8, symmetrically arranged at the second end of the fixing cylinder B6. Correspondingly, the key tip 9 of the key 7 is also located in the same groove. When the key 7 is inserted, the key tip 9 must be aligned with the ears 8 before it can be inserted into the fixing cylinder B6, as shown. Figure 8 Or as shown in Figure 11, at this time, the square hole of the key tip 9 is exactly aligned with the square head of the lock cylinder 2, so that only the spring 5 needs to be overcome to press the key 7 into the lock cylinder 2 to engage with it and rotate the lock cylinder 2. If the groove of the key tip 9 is not aligned with the ear 8, as Figure 10 As shown, the key 7 cannot be inserted into the fixed cylinder B6 to engage with the lock cylinder; when the key 7 needs to be removed, simply align the key tip 9 with the ear 8 again to disengage it from the fixed cylinder B6. Figure 13 As shown, at this time, the key end 9 drives the square head of the lock cylinder 2 to rotate until it aligns with the square hole of the piston 1. After the key end 9 disengages from the fixed cylinder B6, the piston 1 moves axially using the spring force to engage with the lock cylinder 2, as shown. Figure 14 As shown, this further restricts the rotation of the lock cylinder 2. If the groove of the key 7 is not aligned with the ear 8 after turning, the key tip 9 will be blocked by the ear and cannot be pulled out. Therefore, the operation of turning the key 7 is limited to the locked or unlocked position only, with no intermediate position, to ensure that the square hole of the key tip 9 or the piston 1 is completely aligned with the square head of the lock cylinder 2, thereby achieving the function of turning the lock cylinder 2 or restricting the rotation of the lock cylinder 2.

[0054] At the same time, when the key 7 is inserted and rotated, if the groove of the key end 9 is not aligned with the ear 8, the ear 8 can restrict the key end 9 so that it will not pop out of the fixed cylinder B6 due to the spring force. This means that the key 7 does not need to maintain pressure on the piston 1 when it is rotated, making the opening and closing of the lock easier and more convenient.

[0055] The length of the key tip 9 is limited. When the key 7 is inserted into the fixed cylinder B6, it can only be turned after its groove has passed the lug 8 of the fixed cylinder B6 and it is fully inserted into the fixed cylinder B6, so that it can drive the lock cylinder 2 to rotate inside the fixed cylinder B6 without being restricted by the lug 8.

[0056] To ensure that key 7 accurately turns lock cylinder 2 to the locked or unlocked position, such as Figure 1 As shown, the fixed cylinder B6 can be designed with symmetrical ears according to the connection and operation of the lever 12 and the locking tongue 11. For example... Figure 3As shown in Figure 4, the lock cylinder 2 requires the lever 12 to rotate 180 degrees to achieve opening and closing. At this time, the pair of lugs 8 on the fixed cylinder B6 can... Figure 1 As shown, it is also 180 degrees symmetrical and fits into the two grooves of key 7, as... Figure 15 As shown. After inserting the key 7 and rotating it 180 degrees, the lever 12 causes the bolt 11 to retract (or extend) to its dead position, and the lock is in the unlocked (or locked) state. At this time, the two grooves on the key tip 9 are rotated to align with the two lugs 8, making it easy to remove the key 7, thus making operation more convenient. Of course, depending on the different angles at which the lever 12 rotates the bolt 11 in different locks, designing one or more pairs of lugs 8 with symmetrical angles or positions is a common practice for those skilled in the art.

[0057] Similarly, the number of grooves on the key tip 9 can be the same as or different from the number of ears 8. For example, a single groove may be used in conjunction with a pair of ears 8 to achieve its function. However, for the sake of symmetry and even force application, it is better for the number of grooves to be equal to the number of ears 8.

[0058] The specific steps are as follows:

[0059] First step, insert key 7 into fixed cylinder B6.

[0060] When the groove of the key tip 9 is not aligned with the lug 8 of the fixing cylinder B6, such as Figure 10 As shown, the retaining tube B6 cannot be inserted. It can only be inserted when its groove is aligned with the ear 8, as indicated. Figure 9 As shown in Figure 11, the key tip 9 can only overcome the spring force of the spring 5 and insert into the fixed cylinder B6. At this time, the piston 1 is subjected to the pressure of the key 7, and its square hole disengages from the square head of the lock cylinder 2 and is replaced by the square hole of the key tip 9, as shown in Figure 11. Figure 8 As shown, the key end 9 extends beyond the ear 8 of the fixing cylinder B6.

[0061] The second step is to rotate the key 7, which will cause the lock cylinder 2 and the lever 12 to retract (or extend) the bolt 12 to the dead position, thereby unlocking (or locking).

[0062] At this point, since the key tip 9 extends beyond the lug 8, the lug 8 overcomes the spring force of the spring 5 to restrict the key tip 9 during rotation, thus allowing rotation without maintaining pressure on the piston 1. After rotating 180 degrees (i.e., the latch 11 retracts or extends from the housing 10), the groove of the key tip 9 is aligned with the lug 8 of the fixed cylinder B6, as... Figure 12 As shown, this allows for easy removal of key 7.

[0063] Step 3: Exit key 7.

[0064] At this time, as Figure 14As shown, under the spring force of spring 5, piston 1 moves axially to the two ears of fixed cylinder B6 and stops. Its square hole replaces the square hole of key end 9 and cooperates with the square head of lock cylinder 2, thus restricting the rotation of lock cylinder 2 again.

[0065] This application sets up an anti-vibration structure on the outside of the outer shell 10 without changing the internal structure of a typical lock. In addition, the external anti-vibration structure is small and the connection method is simple, thus preserving the original characteristics of the lock, such as small size, simple structure and low cost, to the greatest extent. The anti-vibration capability is also relatively good, and the operation is more convenient.

[0066] Unless otherwise specified, fixed connections can be riveting, welding, bolting, etc., while movable connections can be hinged, etc.

Claims

1. A shockproof box lock, comprising a shell (10) and a bolt (11), a lever (12), and a lock cylinder (2) disposed inside the shell (10); wherein the lever (12) engages with a first end of the lock cylinder (2), and the bolt (11) is extended or retracted from the shell (10) by rotating the lock cylinder (2); characterized in that, It also includes a fixed cylinder A (3), a piston (1) and a fixed cylinder B (6); The fixed cylinder A (3) is located on the outer wall of the outer shell (10) and is adapted to the first end of the piston (1), enabling the piston (1) to move only along the axial direction of the lock cylinder (2); the second end of the piston (1) is provided with a hole adapted to the second end of the lock cylinder (2) to restrict the rotation of the lock cylinder (2); the piston (1) is provided with an elastic element for resetting the second end of the piston (1) to the limiting element of the fixed cylinder B (6) when the piston (1) is not subjected to external force; The first end of the fixed cylinder B (6) is connected to the fixed cylinder A (3), and the second end is provided with a limiting member to prevent the piston (1) from being ejected from the fixed cylinder B (6) by the elastic member; the limiting member is at least a pair of ears (8), symmetrically arranged at the second end of the fixed cylinder B (6), for matching with the groove provided on the outside of the key end (9) of the key (7); It also includes a key (7); the key (7) is larger at the front end and smaller at the back end, and its key end (9) is larger than the back end, so that the key end (9) can rotate after passing over the ear (8); the key end (9) is adapted to the second end of the lock cylinder (2) to rotate the lock cylinder (2).

2. The anti-vibration box lock according to claim 1, characterized in that, The piston (1) has a flat head at its first end, which is adapted to the flat hole of the fixed cylinder A (3).

3. The anti-vibration box lock according to claim 1, characterized in that, The elastic element is a spring (5), which is located between the paddle (12) and the piston (1) to reset the second end of the piston (1) to the limiting part of the fixed cylinder B (6) when the piston (1) is not subjected to external force, and to be adapted to the second end of the lock cylinder (2).

4. The anti-vibration box lock according to claim 1, characterized in that, Both the second end of the piston (1) and the key end (9) are provided with square holes, which are adapted to the square head of the second end of the lock cylinder (2).

5. The anti-vibration box lock according to claim 1, characterized in that, The paddle (12) has a flat hole that is adapted to the flat square at the first end of the lock cylinder (2).

6. The anti-vibration box lock according to claim 1, characterized in that, The fixed cylinder A (3) and the fixed cylinder B (6) are detachably connected.

7. The anti-vibration box lock according to claim 6, characterized in that, The fixed cylinder A (3) is provided with bolts (4), and the wall of the fixed cylinder B (6) is provided with holes that are compatible with the bolts (4).

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