Dustproof structure and lock

Abstract

The utility model discloses a dustproof structure and a lockset, which comprise a lock shell, the lock shell is provided with a cylindrical lock shell end, a lock hole penetrating through the lock shell end is arranged on the lock shell end, the lock hole is eccentrically arranged on the lock shell end, a dustproof lock cover is assembled with the lock shell in a threaded manner, and a key avoiding hole penetrating through the dustproof lock cover is convenient for a key to insert. The key receding hole is eccentrically formed in the dustproof lock cover, and a lock cover anti-disengaging device is arranged between the dustproof lock cover and the lock shell. The lock hole can be blocked by rotating the dustproof lock cover, so that external rainwater, dust and the like are prevented from entering; during use, the dustproof lock cover is rotated until the key avoiding hole corresponds to the lock hole, a key can be inserted to open the lock, the dustproof lock cover can be automatically kept after rotating to the position where the lock hole is exposed, and use is more convenient and labor-saving; in addition, the lock cover anti-falling device can keep the dustproof lock cover connected with the lock shell all the time in the rotating process of the dustproof lock cover, so that the dustproof lock cover is prevented from falling off and being lost accidentally, and the dustproof lock cover and the lock shell are assembled more stably and reliably.

Description

Technical Field

[0001] This utility model relates to the field of anti-theft lock technology, and in particular to a dustproof structure, and also to a lock utilizing the dustproof structure. Background Technology

[0002] Currently, the locks used for theft prevention on bicycles, motorcycles, and other small vehicles have exposed keyholes for easy opening and closing. Due to weather and environmental factors, rainwater and dust can easily enter the lock through these exposed keyholes and accumulate inside the lock cylinder over time. This reduces the cylinder's lubrication, increasing resistance when the key is used and decreasing the smoothness of opening and closing. While lubricating oil is typically used to address this, it easily leads to oil stains on the lock surface. The added lubricating oil will gradually leak out of the keyhole over a long period, easily staining the user's hands and significantly reducing the lock's cleanliness.

[0003] Although a sliding cover was later installed at the keyhole to seal it and prevent rainwater and dust from entering, the sliding cover required to be pushed back and forth, and dust would still accumulate in the gaps, making its back-and-forth movement awkward and incomplete. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a dustproof structure that is simple in structure, easy to operate, and has good anti-fouling effect.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a dustproof structure, including a lock shell, the lock shell having a cylindrical lock shell end, a lock hole penetrating the lock shell end, the lock hole being eccentrically set on the lock shell end, a dustproof lock cover being threadedly fitted to the lock shell end, a key clearance hole penetrating the dustproof lock cover for easy key insertion, the key clearance hole being eccentrically set on the dustproof lock cover, and the dustproof lock cover being able to rotate to make the key clearance hole concentric with the lock hole, and a lock cover anti-dislodgement device being provided between the dustproof lock cover and the lock shell to prevent the dustproof lock cover from rotating and falling off.

[0006] As a preferred technical solution, the inner wall of the dustproof lock cover is provided with an internal thread section, and the outer surface of the lock housing end is provided with a first thread section. The internal thread section of the lock cover and the first thread section of the end are threadedly engaged to expose or close the lock hole.

[0007] As a preferred technical solution, the locking cover anti-loosening device includes a second threaded section on the outer surface of the locking housing end. The second threaded section is located outside the first threaded section and there is a gap between them. The pitch of the second threaded section is equal to that of the first threaded section and the direction is opposite. The inner threaded section of the locking cover is threadedly engaged with the second threaded section.

[0008] As a preferred technical solution, the second threaded section of the end has the same thread length as the first threaded section of the end.

[0009] As a preferred technical solution, the lock cover anti-disengagement device includes an anti-disengagement limiting shaft located at the center of the dustproof lock cover and extending toward the lock housing, wherein the extended end of the anti-disengagement limiting shaft is limited and fitted onto the end of the lock housing.

[0010] As a preferred technical solution, the end of the anti-detachment limiting shaft is provided with two semi-cylindrical limiting shaft head halves, and an adaptive gap is provided between the two limiting shaft head halves for easy assembly. The outer walls of the two limiting shaft head halves protrude from the outer wall of the anti-detachment limiting shaft.

[0011] As an improvement to the above technical solution, the outer wall of the dustproof lock cover is provided with a convenient rotation direction mark.

[0012] This utility model also relates to a lock, including a steel cable lock wire, the steel cable lock wire being connected to the dustproof structure, a lock cylinder being installed inside the lock housing, and the lock cylinder being configured corresponding to the keyhole, one end of the steel cable lock wire being fixedly connected to the lock housing, and the other end extending into the lock housing to engage with the movable lock of the lock cylinder.

[0013] As an improvement to the above technical solution, a lock insert block for easy storage is fixed on the outer wall of the lock housing.

[0014] Due to the adoption of the above technical solution, this utility model has the following beneficial effects: the dustproof lock cover can be rotated to seal the lock hole, preventing rainwater, dust, etc. from entering the interior through the lock hole, thereby protecting the lock cylinder installed inside the lock shell; when in use, rotate the dustproof lock cover until the key clearance hole aligns with the lock hole, so that the key can be inserted to open the lock. The operation is simple and convenient. After the dustproof lock cover is rotated to the position that exposes the lock hole, it can hold itself in place without the need for continuous force applied by hand to related components, making it more convenient and labor-saving to use; in addition, the lock cover anti-detachment device can keep it connected to the lock shell during the rotation of the dustproof lock cover, thereby preventing it from accidentally falling off and being lost, making the assembly of the two more stable and reliable. Attached Figure Description

[0015] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0016] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the locking cover according to Embodiment 1 of this utility model;

[0018] Figure 3 This is a schematic diagram of the lock shell structure according to Embodiment 1 of this utility model;

[0019] Figure 4 This is a schematic diagram of the locking cover in Embodiment 2 of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the lock shell according to Embodiment 2 of this utility model;

[0021] Figure 6 This is a schematic diagram comparing the state changes of the lock according to an embodiment of this utility model;

[0022] In the diagram: 1-Lock housing; 2-Lock housing end; 3-Lock hole; 4-Dustproof lock cover; 5-Key clearance hole; 6-Internal threaded section of lock cover; 7-First threaded section of end; 8-Rotation direction indicator; 9-Second threaded section of end; 10-Anti-disengagement limiting shaft; 11-Limiting shaft head half; 12-Adaptive clearance; 13-Steel cable lock wire; 14-Lock cylinder; 15-Lock insert block. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0024] Example 1:

[0025] like Figures 1 to 3As shown in the figure, a dust-proof structure is used to block the keyhole 3 on the lock and expose it timely to facilitate the insertion of the key to unlock and lock the lock, playing a role in protecting the internal lock core 14 from water and dust. Specifically, this embodiment includes a lock shell 1. The lock shell 1 is provided with a cylindrical lock shell end 2. A keyhole 3 penetrates through the lock shell end 2. The keyhole 3 is eccentrically arranged on the lock shell end 2. A dust-proof lock cover 4 is threadedly assembled with the lock shell end 2. A key avoidance hole 5 for inserting the key is provided through the dust-proof lock cover 4. The key avoidance hole 5 is eccentrically arranged on the dust-proof lock cover 4. And the dust-proof lock cover 4 can make the key avoidance hole 5 concentric with the keyhole 3 by rotation. By rotating the dust-proof lock cover 4, the key avoidance hole 5 cooperates with the lock shell end 2 inside it to realize the blocking and release of the keyhole 3. That is, in the locked state of the lock, rotate the dust-proof lock cover 4 to make the key avoidance hole 5 and the keyhole 3 in a misaligned state, and use the inner wall of the dust-proof lock cover 4 to block the keyhole 3. When the lock needs to be opened, rotate the dust-proof lock cover 4 to make the key avoidance hole 5 correspond to the keyhole 3, and insert the key into the keyhole 3 through the key avoidance hole 5 to unlock. The operation is simple and convenient. After the dust-proof lock cover 4 rotates to the position where the keyhole 3 is exposed, it can hold itself without the need to continuously apply force to relevant parts by hand to keep it, making it more convenient and labor-saving to use.

[0026] A lock cover internal thread section 6 is provided on the inner wall of the dust-proof lock cover 4, and a first end thread section 7 is provided on the outer surface of the lock shell end 2. The lock cover internal thread section 6 and the first end thread section 7 are threadedly engaged to expose or close the keyhole 3. That is, after the lock cover internal thread section 6 and the first end thread section 7 are threadedly connected in place, the inner wall of the dust-proof lock cover 4 will block the keyhole 3. If the key needs to be inserted, rotate the dust-proof lock cover 4 in the reverse direction until the key avoidance hole 5 corresponds to the keyhole 3. The dust-proof lock cover 4 and the lock shell end 2 are threadedly connected, making the overall external connection structure non-exposed, with fewer dirt-trapping gaps and more flexible and smooth operation.

[0027] A rotation direction mark 8 for convenient use is provided on the outer wall of the dust-proof lock cover 4 to prompt the user of the rotation direction of the dust-proof lock cover 4 when the key needs to be inserted. The rotation direction mark 8 can be set as the English word "OPEN", the Chinese character "开" or / and arrow direction indication and other marks.

[0028] In this embodiment, a lock cover anti-detachment device for preventing the dust-proof lock cover 4 from rotating and detaching is provided between the dust-proof lock cover 4 and the lock shell 1, which can keep the dust-proof lock cover 4 and the lock shell 1 in a connected state during the rotation and use of the dust-proof lock cover 4, thereby preventing them from accidentally detaching and being lost after separation or automatically separating and being lost due to颠簸 when installed on a vehicle, making their assembly more stable and reliable.

[0029] Specifically, the anti-detachment device for the lock cover includes a second threaded section 9 on the outer surface of the lock housing end 2. The second threaded section 9 is located outside the first threaded section 7 and there is a gap between them. The pitch of the second threaded section 9 is equal to that of the first threaded section 7, but the direction is opposite. The inner threaded section 6 of the lock cover is threadedly engaged with the second threaded section 9 to achieve the separation and assembly of the dustproof end cover 4 and the lock housing 1. The thread length of the second threaded section 9 is the same as that of the first threaded section 7, so that it is consistent with the rotation force and rotation angle of the dustproof lock cover 4, making it more convenient to use.

[0030] In use, when the internal threaded section 6 of the lock cover rotates along the first threaded section 7 at the end, the key clearance hole 5 can be aligned with or misaligned with the lock hole 3. However, due to the setting of the second threaded section 9 at the end and the distance between it and the first threaded section 7 at the end, the dustproof lock cover 4 cannot be separated from the lock case 1 by continuous unidirectional rotation alone. When it is necessary to separate the dustproof lock cover 4 from the lock case 1, the dustproof lock cover 4 needs to be pulled outward until the internal threaded section 6 of the lock cover can mate with the second threaded section 9 at the end. Then, the dustproof lock cover 4 can be rotated in the opposite direction to disassemble it, thereby effectively preventing the dustproof lock cover 4 from separating on its own and achieving the effect of preventing loss.

[0031] Example 2:

[0032] like Figure 4 and Figure 5 As shown, the anti-detachment device for the lock cover includes an anti-detachment limiting shaft 10 located at the center of the dustproof lock cover 4 and extending toward the lock housing 1. The extended end of the anti-detachment limiting shaft 10 is limited and fitted onto the end 2 of the lock housing. The anti-detachment limiting shaft 10 provides rotational support for the dustproof lock cover 4. Even after the internal threaded section 6 of the lock cover separates from the first threaded section 7 of the end, the anti-detachment limiting shaft 10 can still maintain the connection between the dustproof lock cover 4 and the lock housing 1, thus achieving the purpose of preventing the dustproof lock cover 4 from being lost.

[0033] Specifically, the end of the anti-detachment limiting shaft 10 is provided with two semi-cylindrical limiting shaft head halves 11. An adaptive gap 12 is provided between the two limiting shaft head halves 11 for easy assembly. The outer walls of the two limiting shaft head halves 11 protrude from the outer wall of the anti-detachment limiting shaft 10. During assembly, the two limiting shaft head halves 11 are pinched together, and the adaptive gap 12 brings them closer together, allowing them to smoothly enter the shaft hole on the lock housing end 2. The automatic return of the two halves achieves limiting and anti-detachment. The assembly and structure are simple, and no other parts are required, which helps to simplify the overall structure.

[0034] like Figure 6 As shown, this embodiment also relates to a lock, including a steel cable lock wire 13, which is connected to the aforementioned dustproof structure. A lock cylinder 14 is installed inside the lock housing 1, and the lock cylinder 14 is positioned corresponding to the keyhole 3. One end of the steel cable lock wire 13 is fixedly connected to the lock housing 1, and the other end extends into the lock housing 1 to engage with the movable latch of the lock cylinder 14. This lock can be used for anti-theft protection of small vehicles such as bicycles and motorcycles. During use, the dustproof lock cover 4 provides dustproof and waterproof protection for the keyhole 3 and the lock cylinder 14 installed inside the lock, thereby maintaining the sequence of opening and closing operations of the lock cylinder 14.

[0035] In this embodiment, a lock insert block 15 is also fixed on the outer wall of the lock housing 1 for easy storage. It is used in conjunction with the fixed storage component provided on the vehicle to facilitate the storage of the lock when it is not in use.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dustproof structure, comprising a lock housing, the lock housing having a cylindrical lock housing end, a lock hole penetrating the lock housing end, the lock hole being eccentrically positioned on the lock housing end, characterized in that: A dustproof lock cover is threaded onto the end of the lock housing. A key clearance hole is provided through the dustproof lock cover to facilitate key insertion. The key clearance hole is eccentrically positioned on the dustproof lock cover, and the dustproof lock cover can be rotated to make the key clearance hole concentric with the lock hole. A lock cover anti-dislodgement device is provided between the dustproof lock cover and the lock housing to prevent the dustproof lock cover from rotating and falling off.

2. The dustproof structure as described in claim 1, characterized in that: The inner wall of the dustproof lock cover is provided with an internal thread section, and the outer surface of the lock housing end is provided with a first thread section. The internal thread section of the lock cover and the first thread section of the end are threadedly engaged to expose or close the lock hole.

3. The dustproof structure as described in claim 2, characterized in that: The locking cover anti-disengagement device includes a second threaded section on the outer surface of the locking housing end. The second threaded section is located outside the first threaded section and there is a gap between them. The pitch of the second threaded section is equal to that of the first threaded section and the direction is opposite. The inner threaded section of the locking cover is threadedly engaged with the second threaded section.

4. The dustproof structure as described in claim 3, characterized in that: The second threaded section of the end has the same thread length as the first threaded section of the end.

5. The dustproof structure as described in claim 2, characterized in that: The lock cover anti-disengagement device includes an anti-disengagement limiting shaft located at the center of the dustproof lock cover and extending toward the lock housing, wherein the extended end of the anti-disengagement limiting shaft is limited and fitted onto the end of the lock housing.

6. The dustproof structure as described in claim 5, characterized in that: The end of the anti-detachment limiting shaft is provided with two semi-cylindrical limiting shaft head halves, and there is an adaptive gap between the two limiting shaft head halves for easy assembly. The outer walls of the two limiting shaft head halves protrude from the outer wall of the anti-detachment limiting shaft.

7. The dustproof structure as described in claim 1, characterized in that: The outer wall of the dustproof lock cover is provided with a convenient rotation direction indicator.

8. A lock, comprising a steel cable lock wire, characterized in that: The steel cable lock wire is connected to the dustproof structure as described in any one of claims 1 to 7. A lock cylinder is installed inside the lock housing, and the lock cylinder is set corresponding to the lock hole. One end of the steel cable lock wire is fixedly connected to the lock housing, and the other end extends into the lock housing to cooperate with the movable lock cylinder.

9. The lock as described in claim 8, characterized in that: The outer wall of the lock housing is fixed with a lock insert block for easy storage.

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