A type of lock pick

By designing a plate-shaped handle and a locking mechanism, the lock pick solves the problems of complex operation and lock damage associated with existing tools, achieving simple and efficient lock opening, and is suitable for various lock sizes.

CN224514932UActive Publication Date: 2026-07-17DESSMANN CHINA MACHINERY & ELECTRONICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DESSMANN CHINA MACHINERY & ELECTRONICS
Filing Date
2025-08-08
Publication Date
2026-07-17

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Abstract

This application relates to the field of lock-picking devices, and discloses a lock-picking device including a handle and a locking part. The handle is configured as a polygonal structure; the locking part is disposed on any side of the handle and is used to extend between the lock panel and the door body, and is suitable for engaging with lock body square bars of different sizes; wherein, the handle and the locking part are plate-shaped. The lock-picking device provided by this application, by setting the handle and the locking part as plate-shaped, facilitates the insertion of the locking part through the gap between the lock panel and the door body, and utilizes the locking part to engage with the lock body square bar. By rotating the handle, the lock body square bar is rotated, causing the lock body square bar to drive the bolt to retract, thereby unlocking the lock. Using the above-mentioned lock-picking device requires low operating skills and is less likely to damage the precision structure inside the lock cylinder, thereby reducing damage to the lock and ensuring the security of the lock in subsequent use.
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Description

Technical Field

[0001] This application relates to the field of unlocking device technology, specifically to an unlocking device. Background Technology

[0002] When users encounter emergencies, such as unexpected situations, lost or forgotten keys, they often need to use lock-picking tools to technically open the locks. Currently, the mainstream lock-picking tools on the market for mechanical locks involve inserting the tool deep into the lock cylinder, adjusting the internal structure of the lock cylinder through precise manipulation to the unlocking position, and finally rotating the lock cylinder to complete the unlocking process.

[0003] However, such technical unlocking methods generally have the problems of complex operation process and high skill requirements for operators. In addition, during the operation, improper force or tool misoperation can easily damage the delicate internal structure of the lock cylinder, causing significant damage to the lock during the unlocking process and potentially causing the lock to malfunction, affecting the security of the lock in subsequent use. Utility Model Content

[0004] In view of this, this application provides a lock picker to solve the problem that existing lock picking tools can easily cause significant damage to locks during the unlocking process, and may cause lock malfunction, affecting the security of subsequent use of the lock.

[0005] In a first aspect, this application provides a lock pick, including a handle and a locking part. The handle is configured as a polygonal structure; the locking part is disposed on any side of the handle, and the locking part is used to extend between the lock panel and the door body, and is suitable for locking with square bars of different sizes of lock bodies; wherein, the handle and the locking part are configured as plates.

[0006] Beneficial effects: The lock pick provided in this application, by setting the handle and locking part as plates, facilitates the insertion of the locking part through the gap between the lock panel and the door body. The locking part engages with the square bar of the lock body. By rotating the handle, the square bar of the lock body rotates, causing the square bar to retract the bolt, thus unlocking the lock. Using the above-mentioned lock pick requires low operational skills and is less likely to damage the precision structure inside the lock cylinder, thereby reducing damage to the lock and ensuring the security of subsequent lock use.

[0007] In one alternative embodiment, a rocker portion is provided on the side, and the locking portion and the rocker portion are provided on different sides of the handle.

[0008] Beneficial effects: By setting an independent rocker section on the side of the handle, it is easier to widen the gap between the lock panel and the door body, thus facilitating the insertion of the locking part through the gap. Furthermore, the rocker section and the locking part are arranged on different sides, achieving physical separation between the gap widening and the locking function of the lock body's square bar during unlocking, ensuring the independence of the operating space for the two functions, thereby simplifying the unlocking operation and increasing unlocking efficiency.

[0009] In one alternative embodiment, the rocker portion extends and bends along the side of the handle, and the rocker portion is set at an angle to the handle.

[0010] Beneficial effects: The rocker section is bent and extended along the side of the handle, which effectively transmits the applied torque during the prying of the lock panel, enabling the lock panel to be pried open with less force, making the unlocking operation simple and the unlocking efficiency high.

[0011] In one alternative embodiment, the handle and the rocker portion are configured as a single integral structure.

[0012] Beneficial effects: By designing the handle and rocker as an integrated structure, the connection strength between the handle and rocker is improved, the overall structure of the lock pick is simplified, and the lock pick can be mass-produced in complex shapes through mold structure, thereby reducing production and usage costs.

[0013] In one alternative embodiment, the handle has a first end and a second end disposed opposite to each other, the first end of the handle being provided with the snap-fit ​​portion, and the second end of the handle being provided with the rocker portion.

[0014] Beneficial effect: By placing the locking part and the rocker part at the two ends of the handle respectively, the operator can effectively avoid mutual interference between the locking part and the rocker part when rotating the handle to perform different operations.

[0015] In one alternative embodiment, the engaging portion is configured as a groove recessed into the side of the handle, the groove being used to engage with the square bar of the lock body.

[0016] Beneficial effects: The recessed structure of the slot can wrap around the outer surface of the lock body bar, and a relatively stable interlocking relationship is formed through the inner side of the slot, making it easier for the handle to drive the lock body bar to rotate, thus improving the ease of operation.

[0017] In one alternative embodiment, the slot is provided with a stepped constriction structure.

[0018] Beneficial effects: The slot adopts a stepped constriction structure design, which can adapt to the cross-sectional shape of the square bar of different sizes of lock body, thereby increasing the application range of the lock pick.

[0019] In one alternative embodiment, a padding layer is provided on the inner wall of the slot.

[0020] Beneficial effects: The padding layer protects the outer surface of the lock body bar, reducing damage to it. Furthermore, the padding layer increases the friction between the lock body bar and the locking mechanism, facilitating the rotation of the handle and thus enabling the lock body bar to rotate.

[0021] In one alternative embodiment, at least one latching portion is provided, and each latching portion is provided corresponding to each side of the handle.

[0022] Beneficial effects: Multiple locking parts can be provided and located on different sides of the handle. If one locking part is damaged due to operational errors or other reasons, it can be locked with the lock body bar by using other locking parts, thereby extending the service life of the lock pick and reducing the cost of use.

[0023] In one alternative embodiment, the handle has a quadrilateral structure.

[0024] Beneficial effects: The handle adopts a rectangular structure with four sides, which makes the handle of a certain length so that it is easy for operators to hold and carry, thereby improving the ease of operation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a front view of the unlocking device according to an embodiment of this application;

[0027] Figure 2 This is a side view of the unlocking device according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Handle; 101. First end; 102. Second end;

[0030] 2. Snap-fit ​​part; 201. Snap-fit ​​groove; 202. Stepped constriction structure;

[0031] 3. Rocker section;

[0032] 4. Subbase layer. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Please refer to Figures 1-2 This application provides a lock pick, including a handle 1 and a locking part 2. The handle 1 is configured as a polygonal structure; the locking part 2 is disposed on any side of the handle 1, and the locking part 2 is used to extend between the door lock panel and the door body, and is suitable for locking with square bars of different sizes of lock bodies; wherein, the handle 1 and the locking part 2 are configured as plates.

[0035] In this embodiment, the handle 1 has a polygonal structure, such as a quadrilateral or a hexagon. The locking part 2 is provided on the side of the handle 1, and it is locked to the lock body square bar by covering the outside of the locking part 2. The handle 1 and the locking part 2 are plate-shaped, which means that the overall thickness of the two is significantly smaller than the plane size. Specifically, it can be achieved by stamping metal sheet or injection molding polymer sheet.

[0036] In emergency situations or with owner authorization, the operator can choose the optimal insertion angle to insert the lock into the gap between the lock panel and the door. When the locking part 2 is inserted into the gap and fitted onto the outside of the lock body bar, the inner wall of the locking part 2 engages with the outer wall of the lock body bar. By rotating the handle 1, the locking part 2 is rotated, which in turn rotates the lock body bar, causing the lock body bar to retract the bolt and unlock the door. Using the above-mentioned lock pick requires low skill and is less likely to damage the precision structure inside the lock cylinder, thus reducing damage to the lock and ensuring its subsequent security.

[0037] Understandably, the aforementioned lock pick is designed for locks with a square bar body, where the lock body lacks a limiting device to prevent it from opening. The square bar body typically has a polygonal cross-sectional shape, such as a quadrilateral or hexagon. When the locking part 2 is fitted onto the outside of the square bar body, the inner contour of the locking part 2 contacts the outer wall of the square bar body to achieve locking and limiting. During rotation, it can automatically correct any deviation in the bar body position, thus facilitating the locking part 2's engagement with the square bar body.

[0038] Furthermore, compared to a conventional cylindrical handle, the plate structure of handle 1 reduces the precision requirements for the operating angle, thereby shortening the time required for adjusting the lock pick's direction. It also prevents localized deformation through planar stress distribution when subjected to rotational torque, while maintaining compatibility with the gap space. This allows the lock pick to function as a pry bar during the insertion phase, widening the gap between the lock panel and the door body, and transforms into a torque transmission structure during the locking phase, reducing the difficulty of using the lock pick and improving unlocking efficiency.

[0039] Alternatively, the handle 1 can be recessed on one side to form a groove, which serves as a locking part 2, and the lock body bar can be accommodated in the groove. Alternatively, the handle 1 can have two protruding extension arms on one side, which cooperate to form a locking part 2, and the lock body bar can be accommodated between the two locking parts 2.

[0040] Alternatively, the entire lock pick can be made of a flat, slender metal or plastic sheet, which has the advantages of high hardness and portability.

[0041] Optionally, before using a lock pick to unlock the door, there needs to be a certain gap width between the lock panel and the door body. The gap width is preferably greater than 1mm so that the locking part 2 and the handle 1 can be inserted into the gap.

[0042] In one embodiment, refer to Figure 1 , Figure 2 A rocker section 3 is provided on the side, and the locking part 2 and the rocker section 3 are provided on different sides of the handle 1.

[0043] In this embodiment, the thickness of the rocker portion 3 gradually decreases along the direction away from the handle 1. In this way, when the gap between the door lock panel and the door body is small, the thinnest end of the rocker portion 3 can be inserted into the gap, and the gap gradually widens as the rocker portion 3 is continuously inserted, thereby facilitating the subsequent insertion of the locking portion 2 into the gap and locking it with the lock body square bar.

[0044] The locking part 2 and the rocker part 3 are located on different sides of the handle 1, which realizes the physical isolation between the prying operation and the locking operation, avoids the structural interference problem in the combined operation, and allows the operator to quickly switch to the locking state after widening the door gap, reducing the number of times the lock pick needs to be adjusted.

[0045] Furthermore, referring to Figure 2 The rocker section 3 extends and bends along the side of the handle 1, and the rocker section 3 is set at an angle to the handle 1.

[0046] In this embodiment, along the cross-sectional direction of the unlocking device, the rocker portion 3 has two arc-shaped edges. The ends of the two arc-shaped edges near the handle 1 are connected to the two straight edges of the handle 1, and the ends of the two arc-shaped edges away from the handle 1 are connected, thereby gradually reducing the thickness of the rocker portion 3 in the direction away from the handle 1. The rocker portion 3 serves as a lever structure formed by bending and extending the side of the handle 1, and the connection area between the rocker portion 3 and the handle 1 forms a prying fulcrum to widen the gap. Furthermore, the locking portion 2 and the rocker portion 3 are located on different sides of the handle 1, which facilitates the separate processing of the different sides of the handle 1 to form the locking portion 2 and the rocker portion 3.

[0047] Under normal circumstances, the gap between the door lock panel and the door body is small. To facilitate the subsequent insertion of the locking part 2 into the gap, it is necessary to appropriately widen the gap between the door lock panel and the door body before the locking part 2 is inserted. At this time, the operator can flip the handle 1 to the side where the rocker part 3 is located, and use the lever structure formed by its bending to insert it into the edge of the gap. By pressing down the handle 1 to generate a lever effect, the gap is gradually widened to the width that the locking part 2 can be inserted into. At this time, the operator can insert tools such as screwdrivers and washers into the gap to prevent the gap from shrinking and returning to its original position. Then, the lock pick is removed from the gap, and the lock pick is turned around so that the locking part 2 is aligned with the square bar of the lock body to complete the locking operation.

[0048] In one embodiment, refer to Figure 1 , Figure 2 The handle 1 and the rocker plate 3 are designed as a single molded structure.

[0049] In this embodiment, the handle 1 and the rocker part 3 can be formed in one process by metal stamping or injection molding, thereby forming an uninterrupted mechanical transmission path between the handle 1 and the rocker part 3.

[0050] Furthermore, since the handle 1 and rocker arm 3 do not need to be separately machined and then connected, the production process of the lock pick reduces welding, riveting, or bolting steps. In addition, during operation, when external force is transmitted to the rocker arm 3 through the handle 1, the stress is evenly distributed within the overall structure, avoiding stress concentration at the joints that occurs in traditional split structures. This structure ensures mechanical strength through material continuity while simplifying assembly and reducing the risk of structural failure due to assembly errors.

[0051] In one embodiment, refer to Figure 1 , Figure 2 The handle 1 has a first end 101 and a second end 102 that are disposed opposite to each other. The first end 101 of the handle 1 is provided with a snap-fit ​​part 2, and the second end 102 of the handle 1 is provided with a rocker part 3.

[0052] In this embodiment, the first end 101 and the second end 102 of the handle 1 are far apart, thereby keeping the locking part 2 and the rocker part 3 far apart, further avoiding structural interference between the locking part 2 and the rocker part 3. When the operator holds the middle of the handle 1, the locking part 2 of the first end 101 is inserted into the door gap and forms a stable engagement with the square bar of the lock body, while the rocker part 3 of the second end 102 is located on the outer wall of the gap between the door lock panel and the door body, so that the rocker part 3 does not interfere with the operation of the handle 1 during rotation, thus improving the ease of unlocking.

[0053] In one embodiment, refer to Figure 1 The locking part 2 is configured as a groove 201 recessed into the side of the handle 1, and the groove 201 is used to lock with the square bar of the lock body.

[0054] In this embodiment, the slot 201 is an inwardly recessed receiving space on the side of the handle 1. The slot 201 can be formed by stamping or machining, and its depth can be adjusted according to the actual size of the lock body bar. The slot 201 forms a wrap-around limit through its inner sidewall, so that the lock body bar is subject to multi-directional constraint within the slot 201. When the operator aligns the slot 201 with the lock body bar, the lock body bar will naturally embed itself into the slot 201. The sidewall of the slot 201 and the side of the lock body bar form a surface contact, and the rotational torque is transmitted through the friction of the contact surface.

[0055] Preferably, the opening width of the slot 201 is slightly larger than the cross-sectional dimension of the lock body bar, thereby allowing the lock body bar to have a small displacement within the slot 201, which facilitates the lock body bar entering the slot 201 and allows the slot 201 to effectively limit the lock body bar.

[0056] In one embodiment, refer to Figure 1 The card slot 201 is provided with a stepped constriction structure 202.

[0057] In this embodiment, the stepped constriction structure is a stepped opening formed on the inner wall of the slot 201 with a progressively smaller size. The opening size of each step corresponds to the cross-sectional size of the lock body square bar of different specifications. The slot 201 achieves the limitation of lock body square bars of different specifications through the progressively smaller geometric shape.

[0058] Specifically, when the lock body bar is inserted into the slot 201, the step-like narrowing opening forces the lock body bar to contact different levels of steps during movement. The slot 201 can adaptively contact the lock body bar with the inner wall and step surface of the slot 201 according to the actual size of the lock body bar, thereby preventing the lock body bar from slipping circumferentially during rotation.

[0059] Optionally, along the direction from the opening of the slot 201 to the bottom of the slot 201, the width of the slot 201 can be set to a corresponding width that is compatible with lock body square bars of specifications such as 7mm, 8mm and 10mm, so as to realize the snap-fit ​​of lock body square bars of different sizes.

[0060] In one embodiment, refer to Figure 1 A padding layer 4 is provided on the inner wall of the card slot 201.

[0061] In this embodiment, the pad 4 covers the inner wall surface of the slot 201 and can be made of rubber or engineering plastic and bonded to the inner wall of the slot 201. The pad 4 forms a buffer between the slot 201 and the lock body bar. When the lock body bar is inserted into the slot 201, the pad 4 first contacts the surface of the lock body bar, adapting to the dimensional tolerances of the lock body bar through elastic deformation. During rotation, the pad 4 provides sufficient transmission torque while avoiding scratches caused by direct metal-to-metal friction, thereby reducing damage to the lock body bar.

[0062] In one embodiment, at least one latching portion 2 is provided, and each latching portion 2 is provided corresponding to each side of the handle 1.

[0063] In this embodiment, multiple locking parts 2 can be provided and located on different sides of the handle 1. When one of the locking parts 2 is damaged due to operational errors or other reasons, other locking parts 2 can be used to lock the lock body square bar, thereby extending the service life of the unlocker and reducing the cost of use.

[0064] In one specific embodiment, multiple locking parts 2 are provided, and the multiple locking parts 2 are the same size, so that the lock can still be unlocked using the unlocking device even after some locking parts 2 are damaged.

[0065] In another specific embodiment, multiple locking parts 2 are provided, and the multiple locking parts 2 have different sizes. In this way, by providing multiple locking parts 2 of different sizes, the locking requirements of lock body square bars of different sizes can be further met.

[0066] In one embodiment, refer to Figure 1 The handle 1 has a quadrilateral structure.

[0067] In this embodiment, the handle 1 is configured as a rectangular quadrilateral structure with four straight sides, which facilitates the placement of the locking part 2 and the rocker part 3 on different sides of the handle 1. Furthermore, the quadrilateral structure of the handle 1 makes it easier for the operator to grip, thereby facilitating the operator to rotate the handle 1, reducing the difficulty of unlocking, and improving unlocking efficiency.

[0068] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A lock opener characterized by, include: The handle (1) is designed as a polygonal structure; The latching part (2) is provided on any side of the handle (1). The latching part (2) is used to extend between the door lock panel and the door body, and is suitable for latching with square bars of different sizes of lock bodies. The handle (1) and the locking part (2) are plate-shaped.

2. The lock opener according to claim 1, wherein A rocker section (3) is provided on the side, and the locking part (2) and the rocker section (3) are provided on different sides of the handle (1).

3. The lock opener according to claim 2, wherein The rocker section (3) extends and bends along the side of the handle (1), and the rocker section (3) is set at an angle to the handle (1).

4. The lock opener according to any one of claims 2 or 3, characterized in that, The handle (1) and the rocker (3) are configured as an integrally formed structure.

5. The lock opener of claim 2, wherein, The handle (1) has a first end (101) and a second end (102) disposed opposite to each other. The first end (101) of the handle (1) is provided with the snap-fit ​​part (2), and the second end (102) of the handle (1) is provided with the rocker part (3).

6. The lock opener of claim 1, wherein, The latching part (2) is configured as a latching groove (201) recessed into the side of the handle (1), and the latching groove (201) is used to latch with the square bar of the lock body.

7. The unlocking device according to claim 6, characterized in that, The slot (201) is provided with a stepped constriction structure (202).

8. The lock opener according to any one of claims 6 or 7, characterized in that A pad (4) is provided on the inner wall of the card slot (201).

9. The lock opener of claim 1, wherein, The latching part (2) is provided with at least one, and each latching part (2) is provided corresponding to each side of the handle (1).

10. The lock opener of claim 1, wherein, The handle (1) has a quadrilateral structure.