A tool for opening a pop-up latch

Abstract

This invention provides a tool for opening a top-and-bottom pin tumbler Kaba lock, comprising tin foil, a forming device, and a key-like module. The forming device includes a base and a hinged pressure block. The base has protruding ridges, cutting grooves, and first notches spaced apart along its length. The pressure block has forming grooves matching the protruding ridges and second notches corresponding to the first notches. Closing the pressure block compresses the tin foil, aligning the first and second notches for cutting with a tool, creating a deformation zone in the tin foil corresponding to the pin position. The key-like module consists of a key handle and a detachable key head. The key handle has a mounting groove and threaded fasteners, and the key head has a guide groove adapted to the lock hole. The formed tin foil is embedded in the guide groove and inserted into the lock hole simultaneously with the key head. Reciprocatingly shaking the key handle pushes the deformation zone to the unlocking position, enabling rapid and non-destructive opening of the Kaba lock. This tool offers high forming accuracy, stable positioning, and simple operation, effectively improving the opening efficiency and success rate of top-and-bottom pin tumbler Kaba locks.

Description

Technical Field

[0001] This invention relates to the field of unconventional unlocking technology, specifically to an opening tool for a top and bottom pin tumbler Kaba lock. Background Technology

[0002] Traditional top and bottom pin tumbler Kaba locks rely on the cooperation of pins and lock cylinder to achieve locking. In legal scenarios such as emergency rescue, fire demolition, and lock maintenance, it is often necessary to open the lock quickly and without damage.

[0003] Currently used tin foil lock picking tools are mostly simple sheet-like structures, requiring manual bending and cutting of the tin foil to fit the keyhole and pin positions. This results in low forming accuracy, large cut position deviations, and poor fit with the lock cylinder, leading to low success rates and cumbersome, time-consuming operations. Furthermore, existing tools lack dedicated tin foil forming and positioning structures, causing the tin foil to easily shift and deform during insertion into the keyhole, failing to achieve stable and effective contact with the pins. In addition, conventional contour-following lock picking components are mostly one-piece structures, with the key head and handle not detachable, making them difficult to adapt to different sizes of Kaba lock keyholes, resulting in poor versatility. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the objective of the present invention is to provide an opening tool for a top-and-bottom pin tumbler Kaba lock. This tool has high forming accuracy, stable positioning, and is easy to operate, effectively improving the opening efficiency and success rate of top-and-bottom pin tumbler Kaba locks.

[0005] To achieve the above objectives, the present invention proposes an opening tool for a top and bottom pin tumbler type Kaba lock, which includes: tin foil, a forming device and a key-like module; The forming device includes a base and a pressing block. The base has a protruding ridge, and both sides of the protruding ridge in the width direction have cutting grooves. The protruding ridge has a plurality of first notches arranged at intervals along its length direction. The pressing block is hinged to the base, so that the pressing block can rotate and switch between an open position and a closed position. The pressing block has a forming groove that matches the protruding ridge. The pressing block also has a plurality of second notches that correspond one-to-one with the plurality of first notches, and each second notch communicates with the forming groove. The key-like module includes a key handle and a key head. The key handle has a mounting groove, and the key head is detachably fitted into the mounting groove. The key handle has threaded fasteners for fixing the key head. The key head has a guide groove that matches the keyhole of the Kaba lock. In the open position, the tin foil is laid flat above the protruding edge; when the pressing block switches from the open position to the closed position, the pressing block squeezes the tin foil into shape through the forming groove and the protruding edge; in the closed position, the second notch is aligned vertically with the first notch, allowing the cutter to pass through and cut multiple slits in the tin foil, forming a deformation zone corresponding to the position of the ball between adjacent slits; the shaped tin foil is cut off along the cutting groove by the cutter; After the tin foil is formed, it is fitted into the guide groove. After the key head and the tin foil are inserted into the key hole at the same time, the deformation area is made to contact the tumbler by reciprocating the key handle, thereby moving the tumbler to the unlocking position and realizing the opening of the Kaba lock.

[0006] According to an embodiment of the present invention, a tool for opening a top-and-bottom pin tumbler Kaba lock utilizes a dedicated forming device to uniformly extrude and precisely cut tin foil, avoiding dimensional deviations and uneven deformation caused by manual manufacturing. Simultaneously, a detachable key-like module ensures reliable positioning and smooth insertion of the tin foil, significantly reducing issues such as tin foil displacement and damage during use. This overall solution effectively improves upon the shortcomings of traditional tin foil tools, such as low forming precision, poor adaptability, unstable operation, and low unlocking success rate. It achieves a more efficient, stable, and non-destructive unlocking effect in legal emergency opening scenarios, enhancing the tool's versatility and operational reliability.

[0007] In addition, the opening tool for a top and bottom pin tumbler type Kaba lock proposed according to the above embodiments of the present invention may also have the following additional technical features: Optionally, the pressing block has horizontal extension sections on both sides in the width direction, and the base has a plane that matches the horizontal extension section. The plane is located between the cutting groove and the protruding edge. The horizontal extension section and the plane are used together to form the tin foil into a positioning edge.

[0008] Furthermore, both sides of the bottom of the guide groove are provided with positioning gaps that communicate with the guide groove, so that the positioning edge can extend into the positioning gap to form positioning of the tin foil in the width direction.

[0009] Optionally, the top of the pressure block is also provided with a lifting handle.

[0010] Optionally, a stop is provided at the rear end of the protruding ridge, the stop being used for the foil to abut and align.

[0011] Optionally, the key handle is provided with a force-applying structure for a force-applying tool to be nested.

[0012] Furthermore, the key handle is a hexagonal prism. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an opening tool for a top and bottom pin tumbler Kaba lock according to an embodiment of the present invention; Figure 2 for Figure 1 A magnified view of point A; Explanation of reference numerals in the attached figures: 1. Tin foil, 11. Cutting edge, 12. Deformation area, 13. Positioning edge, 2. Forming device, 21. Base, 211. Protruding rib, 2111. First notch, 2112. Stop block, 2112. Cutting groove, 212. Pressing block, 22. Forming groove, 221. Second notch, 222. Horizontal extension section, 223. Handle, 224. Imitation key module, 3. Key handle, 31. Mounting groove, 311. Threaded fastener, 312. Force rod, 313. Key head, 32. Guide groove, 321. Positioning gap, 322. Detailed Implementation

[0014] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0015] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the invention to those skilled in the art.

[0016] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0017] The following is for reference. Figures 1-2 The present invention provides a detailed description of the opening tool for a top and bottom pin tumbler Kaba lock proposed in the embodiments of the present invention.

[0018] According to an embodiment of the present invention, a tool for opening a top and bottom pin tumbler Kaba lock includes: tin foil 1, a forming device 2, and a key-like module 3; The forming device 2 includes a base 21 and a pressing block 22. The base 21 is provided with a protruding rib 211, and both sides of the protruding rib 211 in the width direction are provided with cutting grooves 212. The protruding rib 211 is provided with a plurality of first notches 2111 arranged at intervals along its length direction. The pressing block 22 is hinged to the base 21, so that the pressing block 22 can rotate and switch between an open position and a closed position. The pressing block 22 is provided with a forming groove 221 that matches the protruding rib 211. The pressing block 22 is also provided with a plurality of second notches 222 that correspond one-to-one with the plurality of first notches 2111. Each second notch 222 communicates with the forming groove 221. The key-like module 3 includes a key handle 31 and a key head 32. The key handle 31 is provided with a mounting groove 311, and the key head 32 is detachably embedded in the mounting groove 311. The key handle 31 is provided with a threaded fastener 312 for fixing the key head 32. The key head 32 is provided with a guide groove 321 that matches the key hole of the Kaba lock. When in the open position, the tin foil 1 is laid flat above the protruding edge 211; when the pressure block 22 switches from the open position to the closed position, the pressure block 22 cooperates with the protruding edge 211 through the forming groove 221 to squeeze the tin foil 1 into shape; when in the closed position, the second notch 222 is aligned vertically with the first notch 2111, allowing the tool to pass through to cut multiple cuts 11 on the tin foil 1, and a deformation zone 12 corresponding to the position of the ball is formed between adjacent cuts 11; the formed tin foil 1 is cut off along the cutting groove 212 by the tool; After the tin foil 1 is formed, it is fitted into the guide groove 321. After the key head 32 and the tin foil 1 are inserted into the lock hole at the same time, the deformation area 12 is made to contact the pin by reciprocating shaking of the key handle 31, so that the pin moves to the unlocking position and the Kaba lock is opened.

[0019] In other words, this opening tool is used to open a top and bottom pin tumbler type Kaba lock. The tool mainly consists of tin foil 1, a forming device 2, and a key-like module 3. The forming device 2 includes a base 21 and a rotatable pressure block 22. The base 21 is provided with a long strip-shaped protrusion 211 for shaping the tin foil 1. Cutting grooves 212 are provided on both sides of the width direction of the protrusion 211. The cutting grooves 212 extend along the length direction of the protrusion 211. The length and height of the protrusion 211 are matched with the outline of the lock hole. Multiple first notches 2111 are also arranged at intervals along the length direction of the protrusion 211. The first notches 2111 extend along the width direction of the protrusion 211. The pressure block 22 is rotatably connected to the base 21. The side of the pressure block 22 facing the protrusion 211 is provided with a forming groove 221 that matches the shape of the protrusion 211. At the same time, multiple second notches 222 are provided that correspond one-to-one with the multiple first notches 2111. When the pressure block 22 is in the open position, the tin foil 1 can be laid flat on the convex ridge 211. After the pressure block 22 is swung to the closed position, the forming groove 221 cooperates with the convex ridge 211 to squeeze the tin foil 1 into a shape that fits the lock hole. At this time, each second notch 222 is aligned with each first notch 2111, allowing the tool to pass through, thereby accurately cutting out multiple cuts 11 arranged at intervals along its length on the tin foil 1. The cutting direction of the cuts 11 is the width direction, and an independent deformation area 12 corresponding to the position of the lock cylinder pin is formed between adjacent cuts 11. After the forming is completed, the tin foil 1 is cut off and removed along the cutting groove 212.

[0020] The key-like module 3 consists of a key handle 31 and a key head 32. The key handle 31 has a mounting groove 311 and a threaded fastener 312. The key head 32 is detachably embedded in the mounting groove 311 and can be firmly fixed in place by the threaded fastener 312. The key head 32 is provided with a guide groove 321 that matches the lock hole of the Kaba lock. The formed tin foil 1 can be fitted into the guide groove 321, and then the tin foil 1 and the key head 32 are simultaneously fixed by the threaded fastener 312. After the key head 32 and the tin foil 1 are inserted into the lock hole simultaneously, the key handle 31 is reciprocated to drive the key head 32 to move synchronously, so that the deformation area 12 on the tin foil 1 repeatedly contacts and applies force to the tumbler. The plasticity and flexibility of the tin foil 1 drive the tumbler to move to the unlocking position, and finally realize the smooth and non-destructive opening of the Kaba lock. The entire structure replaces manual operation with mechanical forming, expands its adaptability with a detachable structure, and ensures operational stability with positioning and fastening design. The entire process, from forming and positioning to force application, is standardized and efficient, significantly improving the success rate and reliability of opening top and bottom pin tumbler Kaba locks. Specifically, the forming device 2 can have one or two sets of protruding ribs 211 and forming grooves 221, facilitating compatibility with mainstream single-row or double-row Kaba locks on the market and improving tool versatility. The mating points of the protruding ribs 211 and forming grooves 221 can be rounded to prevent damage to the foil 1 during forming. The cross-section of the mounting groove 311 matches the cross-section of the key head 32, and the size of the mounting groove 311 is larger than the size of the key head 32, facilitating the formation of a gap between the mounting groove 311 and the key head 32, thus allowing the foil 1 to easily extend into the mounting groove 311.

[0021] Therefore, this tool for opening top and bottom pin tumbler Kaba locks uses a dedicated forming device 2 to uniformly extrude and precisely cut the tin foil 1, avoiding dimensional deviations and uneven deformation caused by manual manufacturing. Simultaneously, a detachable key-like module 3 ensures reliable positioning and smooth insertion of the tin foil 1, significantly reducing the problems of tin foil 1 shifting or breaking during use. The overall solution effectively improves upon the shortcomings of traditional tin foil 1 tools, such as low forming precision, poor adaptability, unstable operation, and low unlocking success rate. It achieves a more efficient, stable, and non-destructive unlocking effect in legal emergency opening scenarios, improving the tool's versatility and operational reliability.

[0022] Optionally, the pressure block 22 has horizontal extension sections 223 on both sides in the width direction, and the base 21 has a plane that matches the horizontal extension sections 223. The plane is located between the cutting groove 212 and the protrusion 211. The horizontal extension sections 223 and the plane are used together to form the positioning edge 13 of the tin foil 1. Understandably, the horizontal extension section 223 and the plane on the base 21 cooperate with each other to simultaneously press out straight positioning edges 13 on both sides in the width direction while the main body of the tin foil 1 is being formed. This makes the overall structure of the formed tin foil 1 more regular and avoids lateral curling, displacement or wrinkling during insertion into the lock hole or shaking operation. The positioning edge 13 forms a matching structure with the guide groove 321 of the key head 32, further improving the assembly stability of the tin foil 1 in the key head 32, ensuring that the tin foil 1 is subjected to uniform force and reliable deformation when in contact with the pin, thereby improving the smoothness and success rate of the unlocking process. When the 22 blocks are in the closed position, the side edge of the horizontal extension section 223 can be flush with the inner wall of the cutting groove 212, ensuring the flatness of the cut.

[0023] Furthermore, both sides of the bottom of the guide groove 321 are provided with positioning gaps 322 that communicate with the guide groove 321, so that the positioning edge 13 can extend into the positioning gap 322 to form a positioning of the tin foil 1 in the width direction. It can be understood that the positioning gap 322 is adapted to the shape and size of the positioning edge 13 on both sides of the tin foil 1, so that the tin foil 1 can be accurately engaged when it is inserted into the guide groove 321, restricting the movement of the tin foil 1 in the width direction, ensuring that the tin foil 1 always remains in a centered position during shaking and squeezing, and will not be biased to one side of the key hole, resulting in uneven force. At the same time, it can also provide strong support for the protruding area of ​​the tin foil 1 after forming, ensuring the stability of the contact between the deformation area 12 and the tumbler. This structure further improves the matching accuracy between the tin foil 1 and the key head 32, so that the deformation area 12 can be stably aligned with the lock cylinder tumbler, ensuring reliable execution of the unlocking action and reducing the operation error rate.

[0024] Optionally, the top of the pressure block 22 is also provided with a lifting handle 224. Understandably, the lifting handle 224 is located on the top of the pressure block 22, allowing the operator to quickly and effortlessly lift the pressure block 22 from the closed position to the open position with one or both hands, improving operational convenience. Especially when continuously producing multiple sheets of tin foil 1, the lifting handle 224 can reduce the inconvenience or wear caused by direct contact of fingers with the edge of the pressure block 22, making the opening and closing action of the forming device 2 smoother, improving overall efficiency, and simultaneously enhancing the comfort and durability of the tool operation.

[0025] Optionally, a stop 2112 is provided at the rear end of the protruding ridge 211, which is used for aligning the tin foil 1. Understandably, the stop 2112 is fixed at the rear end of the protruding ridge 211 opposite to the hinge point of the pressure block 22, providing a clear alignment reference for the tin foil 1. This allows the operator to place the tin foil 1 by simply placing the end of the tin foil 1 against the stop 2112, ensuring uniform positioning of the tin foil 1 along its length. This guarantees a fixed distance from the deformation area 12 of the tin foil 1 to its rear end, thus ensuring that the deformation area 12 corresponds one-to-one with the pins of the lock cylinder. This structure effectively reduces human error, ensuring consistent dimensions and deformation area 12 positions for each piece of formed tin foil 1, improving the consistency and stability of tool use.

[0026] Optionally, the key handle 31 is provided with a force-applying structure for a nested force-applying tool. Understandably, the force-applying structure is used in conjunction with an external force-applying tool to provide the key handle 31 with greater rotational and wobbling torque when the lock cylinder is tight or the operating space is limited. This allows the operator to apply force more stably, driving the key head 32 and the foil 1 to complete the pin-pressing action. The force-applying structure enhances the applicability of the tool in complex scenarios, making unlocking operations more effortless and controllable, while ensuring that the foil 1 does not easily fall off or deform during operation, thus improving opening stability. The key handle 31 can be made into a long strip structure perpendicular to the key head 32 for easy force application by the operator, or it can have a radial through hole for the force-applying rod 313 to pass through radially for force application. The split structure facilitates storage.

[0027] Furthermore, the key handle 31 is a hexagonal prism. Understandably, designing the key handle 31 as a hexagonal prism allows for perfect compatibility with common sockets, wrenches, and other standard force-applying tools, facilitating quick insertion and force application, and improving tool versatility. The hexagonal prism structure has sharp edges and a stable grip, preventing slippage even under pressure or wet conditions. It is convenient for direct hand operation and can be reliably used with force-applying tools, balancing operational flexibility and torque transmission efficiency.

[0028] The usage of this tool includes the following steps: S1 Foil Foil 1 Forming: Rotate the pressure block 22 to the open position, lay the foil 1 flat on top of the protruding ridge 211, aligning one end of the foil 1 with the stop block 2112 to ensure the foil 1 completely covers the protruding ridge 211 and the planes on both sides; then rotate the pressure block 22 to the closed position, so that the forming groove 221 of the pressure block 22 engages with the protruding ridge 211, and at the same time, the horizontal extensions 223 on both sides of the pressure block 22 fit against the plane of the base 21, extruding the foil 1 into shape. The cross-section of the formed foil 1 has a convex center and flat sides. Understandably, this step completes the standardized forming of the foil 1 through mechanical extrusion, replacing traditional manual bending, ensuring that the shape of the foil 1 matches the height of the keyhole. The stop block 2112 achieves precise positioning, and the plane and the horizontal extensions 223 cooperate to form the positioning edge 13, making the foil 1 structurally stable and dimensionally uniform, avoiding deviations caused by manual production.

[0029] S2 Foil 1 Cutting: When the pressure block 22 is in the closed position, a tool is used to cut multiple cuts 11 on the formed foil 1 through the vertically aligned second notch 222 and first notch 2111, so that a deformation zone 12 corresponding to the position of the Kaba lock cylinder pins is formed between adjacent cuts 11. Understandably, the vertical alignment of the first notch 2111 and the second notch 222 provides precise guidance for the tool, ensuring that the position and spacing of the cuts 11 completely correspond to the lock cylinder pins, allowing the deformation zone 12 to accurately act on each pin. This cutting method ensures that the deformation zone 12 is of consistent size and evenly stressed, enabling the foil 1 to stably compress the pins when shaken, significantly improving the unlocking success rate and operational consistency.

[0030] S3 Foil Foil 1 Removal: After the incision 11 of foil foil 1 is completed, use a knife to cut the formed foil foil 1 along the cutting grooves 212 on both sides of the protruding edge 211. Rotate the pressure block 22 to the open position and remove the formed foil foil 1. Check whether the deformation area 12 of foil foil 1 is complete and undamaged. Understandably, the cutting grooves 212 provide a straight cutting path for the knife, ensuring that the edges of foil foil 1 are neat and the dimensions are accurate, avoiding burrs or skewing that may affect insertion and positioning. After removal, check the integrity of the deformation area 12 to eliminate problems such as damage and deformation in advance, ensuring that it can work normally after the key head 32 is installed, reducing failures and jamming during unlocking. If damage occurs, foil foil 1 can be reshaped using S1 and S2.

[0031] Assembly of the foil 1 after S4 forming: Align the formed foil 1 with the opening at the end of the guide groove 321 and insert it. Push the foil 1 into the guide groove 321 until the front end of the foil 1 enters the mounting groove 311. Then, use the threaded fastener 312 to tighten the key head 32, so that the key head 32 presses and fixes the foil 1. Understandably, during assembly, align the front end of the foil 1 with the entrance of the guide groove 321, and align the positioning edge 13 of the foil 1 with the entrance of the positioning gap 322. Then, slowly insert it into the guide groove 321. The front end of the foil 1 enters the mounting groove 311, and the rear end of the foil 1 is flush with the rear end of the key head 32. Then, use the threaded fastener 312 to provide reliable clamping force to fix the front end of the foil 1 and the key head 32 synchronously. This can ensure that the foil 1 and the key head 32 move synchronously, so that the deformation area 12 is stably aligned with the tumbler, ensuring effective transmission of force and improving the reliability and stability of the unlocking action.

[0032] S5 Unlocking Operation: Simultaneously insert the key head 32, which is embedded with tin foil 1, into the keyhole of the Kaba lock, ensuring it is fully inserted. By directly and repeatedly shaking the key handle 31, or by nesting a force-applying tool on the key handle 31 and shaking the key handle 31, the deformation area 12 is made into full contact with and squeezed against the pins in the lock cylinder, moving the pins to the unlocking position. Understandably, full insertion ensures effective contact between the deformation area 12 and all pins, and the reciprocating shaking allows the tin foil 1 to gradually press the pins to the unlocking position using its flexibility. Using a force-applying tool can improve torque and stability, making it suitable for various usage scenarios. The entire process requires no complex skills, is simple and efficient, and can quickly complete the pin insertion action.

[0033] Operation S6 Complete: When the resistance to turning the key handle 31 decreases significantly and the lock cylinder can rotate freely, turn it in the unlocking direction to open the Kaba lock. After the lock cylinder resets, slowly pull out the key head 32 and the tin foil 1 to complete the unlocking operation. Understandably, reduced resistance indicates that all the pins have reached the unlocking position; at this point, a smooth turn will unlock the lock. Slowly pulling out the tin foil 1 avoids residue, breakage, or scratching of the lock cylinder, achieving truly non-destructive opening. The entire method is clear, highly controllable, and can quickly, stably, and safely complete the opening of a Kaba lock with upper and lower pin tumblers in legal emergency scenarios.

[0034] After step S3 is completed, the front end of the formed foil 1 can be cut to a preset length, or the foil 1 can be cut to a preset length before step S1.

[0035] In summary, the method for using this tool to open a top-and-bottom pin tumbler Kaba lock relies on the standardized extrusion and precise grooving of the tin foil 1 by the forming device 2. The cooperation of the stop block 2112, the cutting groove 212, the first notch 2111, and the second notch 222 effectively avoids dimensional deviations and cut misalignment problems caused by manual operation. The tin foil 1 is limited and fixed by the guide groove 321 and the positioning gap 322, and the locking structure of the detachable key head 32 and key handle 31 ensures that the tin foil 1 is firmly assembled and does not shift during operation. This method has a smooth process, low operational threshold, and can quickly produce qualified tin foil 1 in batches. The deformation zone 12 can accurately match the position of the lock cylinder pins, and the force application method is flexible and controllable. No violent demolition is required throughout the process. In legal emergency scenarios such as fire rescue and lock repair, it can quickly and non-destructively open top-and-bottom pin tumbler Kaba locks. It has strong operational stability, high unlocking efficiency, and wide applicability, effectively improving the overall safety and practicality of the operation.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a number" means two or more, unless otherwise explicitly specified.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tool for opening a top and bottom pin tumbler type Kaba lock, characterized in that, include: Tin foil, forming device, and key-like module; The forming device includes a base and a pressing block. The base has a protruding ridge, and both sides of the protruding ridge in the width direction have cutting grooves. The protruding ridge has a plurality of first notches arranged at intervals along its length direction. The pressing block is hinged to the base, so that the pressing block can rotate and switch between an open position and a closed position. The pressing block has a forming groove that matches the protruding ridge. The pressing block also has a plurality of second notches that correspond one-to-one with the plurality of first notches, and each second notch communicates with the forming groove. The key-like module includes a key handle and a key head. The key handle has a mounting groove, and the key head is detachably fitted into the mounting groove. The key handle has threaded fasteners for fixing the key head. The key head has a guide groove that matches the keyhole of the Kaba lock. In the open position, the tin foil is laid flat above the protruding edge; when the pressing block switches from the open position to the closed position, the pressing block squeezes the tin foil into shape through the forming groove and the protruding edge; in the closed position, the second notch is aligned vertically with the first notch, allowing the cutter to pass through and cut multiple slits in the tin foil, forming a deformation zone corresponding to the position of the ball between adjacent slits; the shaped tin foil is cut off along the cutting groove by the cutter; After the tin foil is formed, it is fitted into the guide groove. After the key head and the tin foil are inserted into the key hole at the same time, the deformation area is made to contact the tumbler by reciprocating the key handle, thereby moving the tumbler to the unlocking position and realizing the opening of the Kaba lock.

2. The opening tool for a top and bottom pin tumbler type Kaba lock as described in claim 1, characterized in that, The pressure block has horizontal extension sections on both sides in the width direction. The base has a plane that matches the horizontal extension section. The plane is located between the cutting groove and the protruding edge. The horizontal extension section and the plane are used together to form the tin foil into a positioning edge.

3. The opening tool for a top and bottom pin tumbler type Kaba lock as described in claim 2, characterized in that, Both sides of the bottom of the guide groove are provided with positioning gaps that communicate with the guide groove, so that the positioning edge can extend into the positioning gap to form positioning of the tin foil in the width direction.

4. The opening tool for a top and bottom pin tumbler type Kaba lock as described in claim 1, characterized in that, The top of the pressure block is also provided with a lifting handle.

5. The opening tool for a top and bottom pin tumbler type Kaba lock as described in claim 1, characterized in that, The rear end of the protruding ridge is provided with a stop block, which is used for the tin foil to abut and align.

6. The opening tool for a top and bottom pin tumbler type Kaba lock as described in claim 1, characterized in that, The key handle is provided with a force-adding structure for a force-adding tool to be nested.

7. The opening tool for a top and bottom pin tumbler type Kaba lock as described in claim 6, characterized in that, The key handle is a hexagonal prism.

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