Lightweight metal lock

Abstract

This utility model discloses a lightweight metal lock, including a lock body, a lock hook assembly, a key, and a locking assembly. The locking assembly includes a locking member movably installed within the lock body. One end of the locking member has a locking protrusion, which is used to detachably engage with the bottom end of the lock hook assembly, thereby holding the lock hook assembly in the locked position or releasing the lock hook. When the key is inserted into the lock body, it can drive the locking member to move horizontally, causing the locking protrusion to disengage from the lock hook assembly. This utility model uses a horizontally moving locking member to replace the traditional cylindrical lock cylinder structure. The structure of the locking member is simpler and lighter than the traditional cylindrical lock cylinder structure, making the overall structure of the lightweight metal lock simple and lightweight, with simple manufacturing process and low processing cost, which is conducive to production and widespread use. In addition, the lightweight metal lock is made of titanium alloy, aluminum alloy, or other alloys, so the structure is lighter and the surface is smooth and beautiful.

Description

Technical Field

[0001] This utility model relates to the field of padlock technology, and in particular to a lightweight metal lock that is structurally simple, technologically simple, and low in cost. Background Technology

[0002] Padlocks are widely used due to their portability and flexibility, commonly serving as locks for home doors, bags, and bicycles. The core components of a padlock generally include the lock body, lock arm, lock cylinder, and spring. The lock body is typically made of materials such as iron, copper, stainless steel, or aluminum alloy, and its interior houses the lock cylinder and spring. The lock cylinder is the core control unit of the padlock. Traditional mechanical lock cylinders generally contain pin tumblers and leaf spring assemblies, while smart lock cylinders integrate chips, Bluetooth modules, or fingerprint sensors. The spring's main function is to control the lock cylinder's reset or to drive the lock arm to automatically spring back. The lock arm is generally a U-shaped metal rod that is inserted into the lock body and secured by an internal latch.

[0003] Traditional padlocks typically have a cylindrical cylinder. To enhance security, they often incorporate encrypted pins and push pins, along with an encrypted side structure (complex serrations) on the key surface. After the key is inserted, the encrypted pins are raised to their aligned positions, causing the lock cylinder to rotate and disengage the locking arm, thus unlocking the lock. This encrypted structure leads to complex manufacturing processes and high production costs. Furthermore, the cylindrical cylinder's exposed end makes it easy to unlock the lock without a key by rotating the cylinder unintentionally, impacting security and user experience.

[0004] Therefore, it is necessary to provide a lightweight metal lock that is structurally simple to manufacture and low in cost to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a lightweight metal lock that is structurally simple, easy to manufacture, and low in cost.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A lightweight metal lock is provided, comprising a lock body, a lock hook assembly, a key, and a locking assembly; wherein the lock hook assembly is movably mounted on the lock body, and the locking assembly includes a locking member movably mounted on the lock body, one end of the locking member having a locking protrusion that is detachably engaged with the bottom end of the lock hook assembly; when the key is inserted into the lock body, it can drive the locking member to move, causing the locking protrusion to disengage from the lock hook assembly, thereby releasing the lock hook assembly.

[0007] Preferably, the locking member is further provided with an abutment block, which protrudes towards the bottom of the lock body; the end of the key is provided with a protrusion, and when the key is inserted into the lock body and rotated, the protrusion pushes against the abutment block to drive the locking member to move to its unlocking position, thereby disengaging the locking protrusion from the lock hook and releasing the lock hook assembly. In this application, a translational locking member replaces the traditional cylindrical lock cylinder structure, and a protrusion is provided at the end of the key to replace the complex encryption side (or password pattern) of the traditional wavy structure, thereby simplifying the overall structure, simplifying the manufacturing process, reducing processing costs, and facilitating production and widespread use.

[0008] Preferably, the locking member is further provided with a boss located at the end away from the abutment block. The end face of the boss and the end face of the abutment block are on the same plane, and the boss has a hollow structure. This allows the locking member to move more smoothly and reduces the weight of the locking member, thereby reducing the overall weight of the lightweight metal lock and greatly saving costs.

[0009] Preferably, the lightweight metal lock further includes a lower cover plate, which is installed at the bottom of the lock body. The lower cover plate has a through hole and an extending protrusion. The extending protrusion extends radially along the through hole and communicates with it. The extending protrusion allows the protrusion to slide, and the through hole allows the key to slide, thus enabling the key to enter and exit the lock body. In this application, the lower cover plate protects the locking element within the lock body's receiving cavity. Only the through hole and extending protrusion, which match the shape of the key, are provided on the lower cover plate. Therefore, the locking element can only be moved after the correct key passes through the through hole and extending protrusion. During this process, the lower cover plate remains stationary. Therefore, touching the lower cover plate during use will not cause the locking element to slide, effectively preventing accidental left-right sliding of the locking element due to human error. This effectively prevents unintentional unlocking, thereby improving locking security and enhancing the user experience.

[0010] Preferably, the locking assembly further includes a first elastic element, and a positioning protrusion is provided at the end of the locking element away from the locking protrusion. The first elastic element is sleeved on the positioning protrusion and abuts against the end face of the locking element. The first elastic element is used to drive the locking element to move and reset to its locked position.

[0011] Preferably, the lower cover plate is further provided with a positioning post, and the lock body is provided with a positioning hole corresponding to the positioning post. The positioning post is inserted into the positioning hole to realize the installation of the lower cover plate, making the structure of the lower cover plate simple and easy to install.

[0012] Preferably, the lightweight metal lock further includes an upper cover plate with a fixing post. The upper cover plate is installed in the lock body and located above the locking member. The fixing post passes through the locking member and protrudes below it, with the fixing post and the through hole facing each other. The fixing post is used for sliding connection of the locking member, for detachable insertion of the key, and for rotation of the key around it. This application uses upper and lower cover plates that fit together to install the locking member, making the installation of the locking member more convenient and the sliding of the locking member smoother.

[0013] Preferably, a sliding hole is provided through the locking member, the sliding hole extends along the moving direction of the locking member, the locking member is slidably connected to the outside of the fixing post through the sliding hole, and the locking member can slide back and forth along the fixing post to switch between its locked position and its unlocked position, so that the sliding of the locking member is more stable.

[0014] Preferably, the end of the key has a recessed hole, the inner diameter of which is larger than the outer diameter of the fixing post. After the key is inserted into the fixing post through the recessed hole, the key can rotate around the fixing post to drive the locking member to move to its unlocking position.

[0015] Preferably, one end of the upper cover plate is further provided with a stop block, the protrusion direction of the stop block is consistent with the protrusion direction of the fixing post, and the stop block is also provided with a stop groove. The end of the first elastic member away from the positioning protrusion post is accommodated in the stop groove and abuts against the end face of the stop groove, which makes the installation of the first elastic member simple, and makes the first elastic member less prone to deflection during the process of the first elastic member being squeezed and deformed, thereby making the movement of the locking member smooth.

[0016] Preferably, the key includes a connected handle and a key body, the recess is formed in the key body and extends along its axial direction, and the protrusion is provided at the end of the key body. When the key body is driven to rotate around the fixed post by the key handle, the protrusion can push the locking member to move.

[0017] Preferably, the locking hook assembly includes a locking hook and a locking hook connector, the locking hook connector being fixed to the bottom end of the locking hook, and the locking hook or the locking hook connector being provided with a locking platform extending radially therefrom, the locking platform being used to detachably engage with the locking protrusion to hold the locking hook in a locked position or release the locking hook assembly.

[0018] Specifically, when the locking protrusion abuts against the locking platform, it holds the locking hook in the locked position, preventing the locking hook connector and the entire locking hook from moving to its unlocked position; when the locking member slides and causes the locking protrusion to disengage from the locking platform, the locking hook assembly is released, allowing the locking hook connector and the locking hook to move to its unlocked position, and when the locking hook assembly moves to the unlocked position, the locking protrusion abuts against the outer side of the locking hook connector.

[0019] Preferably, the moving direction of the locking hook connector and the locking hook is perpendicular to the moving direction of the locking member.

[0020] Preferably, the locking hook assembly further includes a second elastic element, and the bottom of the locking hook connector is provided with a bottom groove. The second elastic element is disposed in the bottom groove, and the elastic force provided by the second elastic element causes the locking hook assembly to always tend to move towards its unlocking position. Therefore, when the locking protrusion disengages from the locking platform, the elastic force provided by the second elastic element drives the locking hook connector and the locking hook as a whole to move upward until they reach the unlocking position.

[0021] Preferably, the locking hook connector further includes a first connecting rod and a second connecting rod connected sequentially to the locking platform. The outer diameters of the locking platform, the first connecting rod, and the second connecting rod decrease sequentially. The second connecting rod is inserted into the bottom end of the locking hook and is securely connected thereto. The end face of the first connecting rod abuts against the bottom end face of the locking hook to prevent the locking platform from contacting the bottom end face of the locking hook.

[0022] Preferably, the bottom end face of the lock hook is provided with an end face connection hole, the second connecting rod is inserted into the end face connection hole, and is fixed to the lock hook by at least one method such as fastening, welding, or bonding.

[0023] Preferably, the lock body has a mounting hole penetrating its upper surface, and a blocking part protrudes from the inner wall of the mounting hole. The lock hook is movably installed in the mounting hole and has a limiting part extending radially from its outer wall. When the lock hook moves to its unlocking position, the limiting part abuts against the blocking part to prevent the lock hook from disengaging from the lock body.

[0024] Preferably, the lock body is further provided with a lock hole spaced apart from the mounting hole; the lock hook includes a long rod and a short rod, the long rod is movably installed in the mounting hole, and the long rod is provided with the limiting part, so that the short rod can be inserted into or disengaged from the lock hole by moving the long rod.

[0025] Preferably, the locking hook assembly further includes a limiting sleeve, which is fixed to the outside of the long rod. The upper end face of the limiting sleeve forms the limiting part, and the lower end face of the limiting sleeve is flush with the bottom end face of the long rod.

[0026] Preferably, the lock body has a receiving cavity, the locking assembly is installed at the bottom of the receiving cavity, and the upper part of the receiving cavity has a large number of hollow structures, thereby reducing the weight of the product, improving the user experience, and greatly saving costs.

[0027] Compared with existing technologies, this utility model's lightweight metal lock uses a locking component instead of the traditional cylindrical lock cylinder structure. The locking component is movably installed inside the lock body, and one end of the locking component has a locking protrusion. This locking protrusion can be detachably engaged with the end of the lock hook assembly to hold the lock hook assembly in the locked position or release it. When the key is inserted into the lock body, it can drive the locking component to move, causing the locking protrusion to disengage from the lock hook assembly. The structure of the locking component in this utility model differs from the traditional cylindrical lock cylinder structure, and the structure of the locking component is simpler, resulting in a simpler and lighter overall structure for the lightweight metal lock. This also simplifies the manufacturing process, reduces processing costs, and facilitates production and widespread use. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of the lightweight metal lock of this utility model.

[0029] Figure 2 yes Figure 1 A structural diagram from another angle.

[0030] Figure 3 yes Figure 1 The exploded diagram.

[0031] Figure 4 yes Figure 3 A structural schematic diagram of the locking component from another angle.

[0032] Figure 5 yes Figure 3 A structural schematic diagram of the upper and middle cover plate from another angle.

[0033] Figure 6 yes Figure 3 A schematic diagram of the lock body from another angle.

[0034] Figure 7 yes Figure 3 A structural schematic diagram of the center locking hook assembly from another angle.

[0035] Figure 8 yes Figure 7 Exploded view of the center lock hook assembly.

[0036] Figure 9 yes Figure 1 A schematic diagram of the key being inserted into the lock body.

[0037] Figure 10 yes Figure 9 A structural diagram from another angle.

[0038] Figure 11 yes Figure 9 A cross-sectional view along the transverse direction.

[0039] Figure 12 yes Figure 9 A sectional view along the longitudinal direction.

[0040] Figure 13 yes Figure 9 A schematic diagram of the structure in which the key, locking element, and locking hook assembly work together.

[0041] Figure 14 yes Figure 13 A schematic diagram showing the state of the locking element moving to the unlocking position.

[0042] Figure 15 yes Figure 9 A cross-sectional view along the lateral direction after the locking hook assembly has moved to the unlocked position.

[0043] Figure 16 yes Figure 9 A longitudinal sectional view of the locking hook assembly after it has moved to the unlocked position.

[0044] Figure 17 yes Figure 15 A schematic diagram of the structure in which the key, locking element, and locking hook assembly work together. Detailed Implementation

[0045] Embodiments of the present invention will now be described with reference to the accompanying drawings, in which similar element reference numerals represent similar elements. It should be noted that the directional descriptions involved in the present invention, such as up, down, left, right, front, and back, indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the technical solutions of this application or / 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, and therefore should not be construed as a limitation of this application. The terms "first," "second," etc., described are only used to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0046] Combination Figures 1-17 As shown, the lightweight metal lock 100 provided in this application is particularly suitable for bags, lockers, suitcases, door handles, etc., but is not limited thereto, and can be used on any other items that need to be locked.

[0047] First combine Figure 1-3 , Figure 6 , Figure 10 As shown, in one embodiment of this application, the lightweight metal lock 100 includes a lock body 110, a lock hook assembly 120, a locking assembly 130, and a key 160. The lock body 110 has a hollow interior forming a receiving cavity 111, and its bottom end is open. The receiving cavity 111 communicates with the outside through the bottom opening. Figure 6 As shown. The locking hook assembly 120 is movably mounted on the top of the lock body 110 and extends into the receiving cavity 111. When the locking hook assembly 120 moves, it switches between a locked position and an unlocked position. The locking assembly 130 includes a locking member 131 movably mounted in the receiving cavity 111. One end of the locking member 131 has a locking protrusion 1311. The locking protrusion 1311 is detachably engaged with the bottom end of the locking hook assembly 120 to hold the locking hook assembly 120 in the locked position and to release the locking hook assembly 120, thereby allowing the locking hook assembly 120 to move to its unlocked position.

[0048] The following is combined Figure 11 , Figure 13-14 , Figure 17 As shown, in this embodiment, the moving direction of the locking hook assembly 120 is perpendicular to that of the locking member 131. Specifically, the locking hook assembly 120 can reciprocate along the height direction of the lock body 110 to switch between its locked and unlocked positions. The locking member 131 is movably installed in the receiving cavity 111, and the locking member 131 can reciprocate laterally along the lock body 110, specifically along the length direction of the lock body 110, thereby allowing the locking protrusion 1311 to be separably engaged with the bottom end of the locking hook assembly 120.

[0049] Continue to combine Figure 1-3 , Figure 6 , Figure 10 As shown, in this embodiment, the lightweight metal lock 100 further includes a lower cover plate 140. The lower cover plate 140 is installed at the bottom of the lock body 110 and seals the opening, thereby sealing the locking member 131 within the receiving cavity 111. Simultaneously, a through hole 141 is provided through the lower cover plate 140 for the key 160 to enter and exit the lock body 110, such as... Figure 2 As shown. See Figure 10As shown, after the key 160 passes through the through hole 141 and is inserted into the lock body 110, rotating the key 160 will drive the locking member 131 to move, causing the locking protrusion 1311 to disengage from the lock hook assembly 120, thereby releasing the lock hook assembly 120 and allowing it to move to its unlocking position. The locking member 131 is protected within the receiving cavity 111 of the lock body 110 by the lower cover plate 140. The key 160 passes through the lower cover plate 140 to drive the locking member 131 to move. During this process, the lower cover plate 140 remains stationary. Therefore, touching the lower cover plate 140 during use will not cause the locking member 131 to slide left or right, thus effectively preventing accidental contact with the locking member 131 and preventing unintentional unlocking. This improves the security of the lock and enhances the user experience.

[0050] The following is combined Figure 1-3 , Figure 5 , Figure 11 As shown, in one embodiment of this application, the lightweight metal lock 100 further includes an upper cover plate 150. The upper cover plate 150 is installed in the receiving cavity 111 and located above the locking member 131. The locking member 131 is slidably installed through the cooperation of the upper cover plate 150 and the lower cover plate 140, making the installation of the locking member 131 more convenient and the sliding of the locking member 131 more stable.

[0051] The following is combined Figure 6 , Figure 11 , Figure 15 As shown, in this embodiment, the lock body 110 is basically hollow to form the receiving cavity 111. The locking assembly 130 and the upper cover plate 150 are installed at the bottom of the receiving cavity 111. The upper part of the receiving cavity 111 also has a large number of hollow structures, thereby reducing the weight of the product, improving the user experience, and greatly saving costs.

[0052] The following is combined Figures 3-4 As shown, in one embodiment of this application, the locking assembly 130 further includes a first elastic member 132. The first elastic member 132 abuts against the end of the locking member 131 away from the locking protrusion 1311, and the first elastic member 132 is used to drive the locking member 131 to move and reset to its locked position. Specifically, a positioning protrusion 1312 protrudes from the end of the locking member 131 away from the locking protrusion 1311, and the protrusion directions of the positioning protrusion 1312 and the locking protrusion 1311 are opposite. One end of the first elastic member 132 is sleeved on the outside of the positioning protrusion 1312 and abuts against the end face of the locking member 131, and the other end of the first elastic member 132 abuts against any one of the lock body 110, the lower cover plate 140, and the upper cover plate 150. The elastic force provided by the first elastic member 132 makes the locking member 131 always have a tendency to move towards its locked position. Figure 11 , Figure 15 , Figure 17 As shown, when the locking member 131 is in the locked position, the elastic force provided by the first elastic member 132 pushes the locking member 131, thereby causing the locking protrusion 1311 to stably engage with the bottom end of the lock hook assembly 120, thus locking the lock hook assembly 120. During the process of the locking member 131 translating towards its unlocking position, it compresses the first elastic member 132, causing it to deform; when the locking member 131 translates to the unlocking position, it releases the lock hook assembly 120, allowing the lock hook assembly 120 to move upwards towards the lock body 110 until it is in the unlocked state. At this time, the locking protrusion 1311 abuts against the outer surface of the lock hook assembly 120, as shown. Figure 15 , Figure 17 As shown. When the locking hook assembly 120 moves downwards towards the lock body 110 to its locked position, the locking protrusion 1311 loses contact with the locking hook assembly 120. At this time, the elastic force generated by the recovery deformation of the first elastic element 132 drives the locking element 131 to move towards its locked position until the locking protrusion 1311 engages again with the bottom end of the locking hook assembly 120, as shown. Figure 11 As shown.

[0053] In this embodiment, the first elastic element 132 is preferably a spring, but it is not limited to this, and other elastic elements can also be used.

[0054] Continue to combine Figures 3-4 As shown, in this embodiment, a sliding hole 1313 is also provided through the locking member 131. The sliding hole 1313 has a strip-shaped structure and extends along the direction from the locking protrusion 1311 to the positioning protrusion 1312. The sliding hole 1313 is used to realize the sliding connection of the locking member 131 (see the following description), making the sliding connection of the locking member 131 more convenient and making the locking member 131 more stable during reciprocating sliding. Furthermore, a stop block 1314 is also provided on the locking member 131. The stop block 1314 is located between the sliding hole 1313 and the positioning protrusion 1312. Specifically, the positioning protrusion 1312 is located on the end face of the stop block 1314 away from the sliding hole 1313. When the stop block 1314 is subjected to force, the locking member 131 can move between its locked position and its unlocked position.

[0055] Continue reading Figure 4As shown, in this embodiment, the end face of the abutment block 1314 near the sliding hole 1313 forms an abutment surface 1315. That is, the abutment surface 1315 and the positioning protrusion 1312 are located on opposite sides of the abutment block 1314. When the abutment surface 1315 is subjected to force, it can drive the locking member 131 to move to its unlocking position, as detailed later. In addition, a boss 1317 is also provided at the end of the locking member 131 away from the abutment block 1314. The end face of the boss 1317 is on the same plane as the end face of the abutment block 1314, so that the locking member 131 can move more smoothly. Furthermore, the boss 1317 has a hollow structure, thereby reducing the weight of the locking member 131, reducing its cost, and thus reducing the overall weight of the lightweight metal lock 100, greatly saving costs.

[0056] Combination Figure 2-4 As shown, more preferably, the abutment surface 1315 is recessed with an arc-shaped groove 1316, which is opposite to the sliding hole 1313. When the locking member 131 and the lower cover plate 140 are both installed, the arc-shaped groove 1316 on the abutment surface 1315 corresponds vertically to the arc-shaped edge of the through hole 141 on the lower cover plate 140, which facilitates the key 160 to move along the arc-shaped edge of the through hole 141 and the arc-shaped groove 1316 to enter and exit the locking member 131.

[0057] The following is combined Figure 2-3 , Figure 5 , Figure 11 As shown, in one embodiment of this application, a fixing post 151 is provided on the upper cover plate 150. After the upper cover plate 150 is installed, the fixing post 151 protrudes towards the bottom of the lock body 110. After the locking member 131 is installed, the sliding hole 1313 on the locking member 131 passes through the fixing post 151, and the sliding hole 1313 and the fixing post 151 are in sliding fit, so that the locking member 131 can slide back and forth along the fixing post 151 to switch between its locked position and unlocked position, making the sliding installation of the locking member 131 more convenient, and at the same time making the back and forth sliding of the locking member 131 more stable. Furthermore, the fixing post 151 protrudes below the locking member 131 and is directly opposite to the through hole 141 on the lower cover plate 140, that is, the center lines of the fixing post 151 and the through hole 141 are on the same straight line, as shown. Figure 2 , Figure 11 As shown. The fixing post 151 is used to be detachably inserted with the key 160 and to allow the key 160 to rotate around it, as detailed below. This application provides a matching upper cover plate 150 and lower cover plate 140 to install the locking member 131, making the sliding installation of the locking member 131 more convenient and the reciprocating sliding of the locking member 131 more stable.

[0058] The following is combined Figure 4-5 , Figure 11As shown, in one embodiment of this application, a stop block 152 is protruding from one end of the upper cover plate 150, and the protruding direction of the stop block 152 is the same as the protruding direction of the fixing post 151. A groove 1521 is formed on the stop block 152, and the groove 1521 passes through the end of the stop block 152 near the fixing post 151. After the locking member 131 is inserted into the fixing post 151, the positioning protrusion 1312 provided on the locking member 131 is directly opposite to the groove 1521. The end of the first elastic member 132 away from the positioning protrusion 1312 is accommodated in the groove 1521 and abuts against the end face of the groove 1521, so that the first elastic member 132 abuts against the upper cover plate 150. Positioning the two ends of the first elastic member 132 by positioning the locating protrusion 1312 and the retaining groove 1521 not only makes the installation of the first elastic member 132 more convenient, but also makes the first elastic member 132 less prone to deflection during the process of the locking member 131 moving and squeezing the first elastic member 132 to deform it.

[0059] The following is combined Figure 6 , Figure 11-12 As shown, in one embodiment of this application, the inner wall of the receiving cavity 111 is provided with a flange 1111. The flange 1111 can be continuously provided on the inner wall of the receiving cavity 111, or it can be spaced apart on the inner wall of the receiving cavity 111. After the upper cover plate 150 is installed, its upper surface abuts against the flange 1111, as shown. Figure 11-12 As shown, the end of the stop 152 is abutted by the lower cover plate 140, thereby installing the upper cover plate 150 in the receiving cavity 111 and preventing it from moving, thus achieving stable installation of the upper cover plate 150 and simplifying the installation structure, thereby reducing product weight and saving costs.

[0060] The following is combined Figure 1-3 As shown, in one embodiment of this application, the key 160 includes a connected key body 161 and a handle 162. The key body 161 is generally cylindrical, but it can also be other shapes. At least one protrusion 1611 is provided at the end of the key body 161, and a recess 1612 is also provided on the end face of the key body 161. The recess 1612 extends axially along the key body 161, and its inner diameter is larger than the outer diameter of the aforementioned fixing post 151. The handle 162 is used for user operation, and its shape is not limited.

[0061] Combination Figure 11-12 As shown, when the key body 161 extends into the receiving cavity 111 through the through hole 141 of the lower cover plate 140, the recess 1612 at the end of the key body 161 is inserted into the fixing post 151 of the upper cover plate 150, the protrusion 1611 is located on the side of the abutment surface 1315 of the locking member 131, and the handle 162 is located outside the lock body 110, as shown. Figure 12As shown. When the user rotates the handle 162, causing the key body 161 to rotate around the fixed post 151, for example, in Figure 11-12 In the specific embodiment shown, when the user rotates the handle 162 counterclockwise, the key body 161 rotates around the fixing post 151 by a certain angle, causing the protrusion 1611 at its end to act on the abutment surface 1315 of the locking member 131, thereby pushing the locking member 131 along... Figure 11-12 Sliding in the direction indicated by arrow F, that is, driving the locking member 131 to move to its unlocking position, thereby causing the locking protrusion 1311 to disengage from the bottom end of the lock hook assembly 120, releasing the lock hook assembly 120. At this time, the lock hook assembly 120 can move upward until it reaches its unlocking position. In this application, the locking member 131 replaces the traditional cylindrical lock cylinder structure, and the protrusion 1611 at the end of the key body 161 replaces the traditional complex wavy encryption side (or password pattern), thus making the structure simple, lightweight, easy to manufacture, and low in processing cost, which is conducive to production and widespread use.

[0062] The following is combined Figure 2-3 , Figure 12 As shown, in one embodiment of this application, an extending protrusion 142 is further provided through the lower cover plate 140. The extending protrusion 142 extends radially along the through hole 141 and communicates with the through hole 141. The number and position of the extending protrusion 142 are specifically determined according to the number and position of the protrusions 1611 provided on the key body 161. For example, in Figure 2-3 In the specific embodiment shown, since the key body 161 has only one protrusion 1611, only one extension protrusion 142 needs to be provided on the lower cover plate 140. Furthermore, the outer diameter of the extension protrusion 142 must be larger than the outer diameter of the protrusion 1611 to allow the protrusion 1611 to slide along the extension protrusion 142, thereby enabling the key body 161 to enter and exit the lower cover plate 140. In this application, the locking member 131 is protected within the receiving cavity 111 by a lower cover plate 140 installed at the bottom of the lock body 110. Only through holes 141 and extended protrusions 142 that mate with the key body 161 and the protrusion 1611 are provided on the lower cover plate 140. Therefore, the locking member 131 can only be driven to slide / translate after the correct key 160 passes through the through hole 141 and the extended protrusion 142. This can prevent accidental human contact with the locking member 131, which would cause the locking member 131 to slide left or right, thereby preventing unintentional unlocking and improving the user experience.

[0063] The following is combined Figure 3 , Figure 6As shown, in one embodiment of this application, the lower cover plate 140 is further provided with protruding positioning posts 143, the number and position of which are not specifically limited. Correspondingly, the bottom of the lock body 110 is provided with positioning holes 114 corresponding to the positioning posts 143. When installing the lower cover plate 140, the positioning posts 143 are inserted into the positioning holes 114 and the two are fastened together, or the positioning posts 143 are welded, glued, or fixed in the positioning holes 114 by other means, thereby realizing the fixed installation of the lower cover plate 140 and making the installation of the lower cover plate 140 more convenient. See also Figure 3 As shown, in one specific embodiment, positioning posts 143 protrude from both ends of the lower cover plate 140 along its length. One positioning post 143 protrudes from the middle of the lower cover plate 140 along its width, and the other positioning post 143 protrudes from the end of the lower cover plate 140 along its width. Positioning holes 114 are respectively formed at both ends of the bottom of the lock body 110. The lower cover plate 140 is installed by inserting two positioning posts 143 into two positioning holes 114, making the lower cover plate 140 more stable after installation. Of course, in other embodiments, the positioning posts 143 and positioning holes 15 can be flexibly arranged as needed. The lower cover plate 140 can also be fixedly installed to the bottom of the lock body 110 in other ways.

[0064] The following is combined Figure 3 , Figure 7-8 As shown, in one embodiment of this application, the lock hook assembly 120 includes a lock hook 120a, which includes a long rod 121 and a short rod 122. The long rod 121 and the short rod 122 are preferably integrally formed and generally U-shaped, but are not limited to this shape. The long rod 121 is movably installed in the lock body 110 and extends into the receiving cavity 111. The bottom end of the long rod 121 can be directly and separably engaged with the locking protrusion 1311 of the locking member 131, thereby allowing the end 1221 of the short rod 122 to be inserted into the lock body 110 to achieve the locking function or to disengage from the lock body 110 to achieve the unlocking function.

[0065] In a preferred embodiment, the locking hook assembly 120 further includes a locking hook connector 123, which is fixedly connected to the bottom end of the long rod 121. The locking hook connector 123 has a radially protruding engagement platform 1231, which is used to detachably engage with the locking protrusion 1311 to hold the locking hook assembly 120 in a locked position or release the locking hook assembly 120. (Specific details omitted) Figure 11 , Figure 15As shown, when the locking protrusion 1311 abuts against the locking platform 1231, it holds the entire locking hook assembly 120 in the locked position, preventing the locking hook connector 123 and the locking hook 120a from moving as a whole towards their unlocked position, that is, preventing both from moving upwards as a whole along the height direction of the lock body 110. Figure 11 As shown. When the locking member 131 slides and causes the locking protrusion 1311 to disengage from the locking platform 1231, the locking hook assembly 120 is released, allowing the locking hook connector 123 and the locking hook 120a to move upward as a whole until they reach the unlocked position. At this time, the locking protrusion 1311 abuts against the outer side of the locking hook connector 123, as shown. Figure 15 As shown.

[0066] The following is combined Figure 7-8 , Figure 11 , Figure 15 As shown, in this embodiment, the lock hook assembly 120 further includes a second elastic element 124, which abuts against the bottom of the lock hook connector 123. The elastic force provided by the second elastic element 124 causes the lock hook assembly 120 to always tend to move towards its unlocking position, that is, to always cause the lock hook assembly 120 as a whole to tend to move upward. Specifically, the bottom of the lock hook connector 123 is also provided with a bottom end groove 1312, and the second elastic element 124 is installed in the bottom end groove 1312. The other end of the second elastic element 124 abuts against the lower cover plate 140. When the locking protrusion 1311 disengages from the locking platform 1231, the elastic force provided by the second elastic element 124 drives the lock hook connector 123 and the lock hook 120a to move upward as a whole until they reach their unlocking position.

[0067] In this embodiment, the second elastic element 124 is preferably a spring, but it is not limited to this, and other elastic elements can also be used.

[0068] Continue reading Figure 7-8 , Figure 11 As shown, the locking hook connector 123 further includes a first connecting rod 1233 and a second connecting rod 1234 sequentially connected to the locking platform 1231. The outer diameters of the locking platform 1231, the first connecting rod 1233, and the second connecting rod 1234 decrease sequentially. The first connecting rod 1233 has an end face 1233a, the outer diameter of which is larger than the outer diameter of the bottom end face 1212 of the long rod 121. Correspondingly, the bottom end face 1212 of the long rod 121 has an end face connection hole 1211. Figure 11As shown. When installing the locking hook connector 123, its second connecting rod 1234 is inserted into the end face connecting hole 1211. The locking hook connector 123 and the long rod 121 are fixedly connected by the tight fit between the second connecting rod 1234 and the end face connecting hole 1211, or the second connecting rod 1234 and the end face connecting hole 1211 are fixed by welding, gluing, or other methods, thereby achieving a fixed connection between the locking hook connector 123 and the long rod 121. At the same time, the end face 1233a of the first connecting rod 1233 abuts against the bottom end face 1212 of the long rod 121, thereby preventing the locking platform 1231 from contacting the bottom end face 1212 of the long rod 121.

[0069] Continue to combine Figure 7-8 , Figure 11 , Figure 15 As shown, in this embodiment, the locking hook assembly 120 further includes a limiting sleeve 125, which is fixed to the outside of the long rod 121. The two can be fixed together by fastening, welding, gluing, or other methods. The upper end face of the limiting sleeve 125 forms a limiting portion 1251, and the lower end face 1252 of the limiting sleeve 125 is flush with the bottom end face of the long rod 121. Figure 7 As shown. The limiting part 1251 is used to abut against the lock body 110 to prevent the lock hook 120a in the unlocked position from disengaging from the lock body 110. Of course, it is also feasible to not provide the limiting sleeve 125, but to provide the limiting part 1251 in other ways, as long as the limiting part 1251 protrudes radially along the long rod 121 and can abut against the lock body 110.

[0070] Combination Figure 3 , Figure 11 , Figure 15 As shown, in this embodiment, the upper end face of the lock body 110 is provided with spaced mounting holes 112 and lock holes 113. The lock holes 113 are blind holes, and the mounting holes 112 extend along the height direction of the lock body 110 and communicate with the receiving cavity 111. A long rod 121 is movably installed in the mounting hole 112, and the movement of the long rod 121 causes the short rod 122 to be inserted into or disengaged from the lock hole 113. More specifically, a blocking part 1121 protrudes from the inner wall of the mounting hole 112. This blocking part 1121 is located near the upper end face of the lock body 110, as shown in the figure. Figure 11 As shown, the inner diameter of the blocking part 1121 is smaller than the outer diameter of the limiting sleeve 125, that is, the inner diameter of the blocking part 1121 is smaller than the outer diameter of the limiting part 1251. Thus, when the entire lock hook assembly 120 moves to its unlocked position, the limiting part 1251 abuts against the blocking part 1121. Figure 15 As shown, this is to prevent the hook assembly 120 from disengaging from the lock body 110.

[0071] In this application, the lightweight metal lock 100 can be made of stainless steel or other metals, or titanium alloy, aluminum alloy or other alloys. Its surface is smooth and glossy, which makes it more textured, more beautiful in design, and has better wear resistance, aging resistance and impact resistance.

[0072] Let's combine them again below. Figures 1-17 The working principle and process of the lightweight metal lock 100 of this application are explained as shown.

[0073] First combine Figure 1-2 , Figure 9-10 As shown, when unlocking is required, the correct key 160 is inserted into the lock body 110. Specifically, the key body 161 is inserted into the through hole 141 of the lower cover plate 140, while its upper protrusion 1611 is inserted into the extension protrusion 142. The key 160 is pushed inward, causing the key body 161 to slide along the through hole 141 and the protrusion 1611 to slide along the extension protrusion 142, thereby smoothly inserting the key body 161 into the lower cover plate 140.

[0074] See Figures 11-13 As shown, when the end of the key body 161 is pushed into the locking member 131, the concave hole 1612 on its end face just passes through the fixing post 151. At this time, the protrusion 1611 is located on one side of the abutment block 1314. Figure 13 As shown. When the key handle 162 is rotated, causing the key body 161 to rotate, for example, in Figure 11-13 In the specific embodiment shown, when the user rotates the handle 162 counterclockwise, the key body 161 rotates around the fixed post 151 by a certain angle, thereby causing the protrusion 1611 to push against the abutment surface 1315 of the locking member 131, and thus pushing the locking member 131 along... Figure 11-13 The locking member 131 slides / translates in the direction indicated by arrow F, that is, it moves towards its unlocking position. During the translation of the locking member 131 towards its unlocking position, it compresses the first elastic member 132, causing it to deform.

[0075] Combination Figure 13-14 As shown, the locking member 131 is moved to the state where the locking protrusion 1311 disengages from the locking platform 1231. Figure 14 As shown, at this time, the locking member 131 moves to the unlocking position. The locking hook connector 123 loses the abutment of the locking protrusion 1311, and the second elastic member 124 restores its deformation, driving the locking hook connector 123, the long rod 1211, and the limiting sleeve 125 to move upward as a whole until the upper end face of the limiting sleeve 125 abuts against the blocking part 1121, that is, the limiting part 1251 abuts against the blocking part 1121. Figure 15 As shown, this prevents the elastic force of the second elastic element 124 from ejecting the lock hook 120a from the lock body 110. Figure 15-16 In the indicated state, the lock hook 120a moves to the unlocked position, that is, the end 1221 of the short rod 122 disengages from the lock hole 113 and is in the unlocked state. Meanwhile, the locking protrusion 1311 of the locking member 131 abuts against the outer side of the lock hook connector 123, and compresses the first elastic member 132, as shown. Figure 15 , Figure 17 As shown.

[0076] Combined again Figure 9-14 As shown, when relocking is required, the locking hook 120a is pushed downwards, causing the limiting sleeve 125, the long rod 121, and the locking hook connector 123 to move downwards as a whole. During this process, the second elastic element 124 is compressed again, causing it to deform. When the limiting sleeve 125, the long rod 121, and the locking hook connector 123 move downwards until the locking protrusion 1311 disengages from the outer side of the locking hook connector 123, that is, when they move downwards to... Figure 14 In the state shown, the locking protrusion 1311 loses its contact. At this time, the elastic force generated by the recovery deformation of the first elastic element 132 pushes the locking element 131 to move it horizontally, that is, causes the locking element 131 to move along... Figure 11-13 The locking protrusion 1311 is moved in the opposite direction to the direction indicated by arrow F, causing it to abut against the locking platform 1231 again. The locking member 131 is moved back to its locked position, thereby holding the locking hook connector 123, the long rod 121, and the limiting sleeve 125 in the locked position. The second elastic member 153 is compressed again. Figure 11 , Figure 13 As shown.

[0077] Combined again Figures 9-13 As shown, during the translation of the locking member 131 towards its locked position, its abutment surface 1315 pushes the protrusion 1611, thereby driving the key body 161 to rotate in the opposite direction. When the locking member 131 is translated to the locked position, the key body 161 rotates until the protrusion 1611 again corresponds to the position of the extended protrusion 142. At this time, pulling the key 160 outward causes the key body 161 to slide along the through hole 141 and the protrusion 1611 to slide along the extended protrusion 142, thus allowing the key 160 to be removed.

[0078] Based on the above description, the lightweight metal lock 100 of this utility model uses a locking member 131 to replace the traditional cylindrical lock cylinder structure. The locking member 131 is movably installed inside the lock body 110, and one end of the locking member 131 is provided with a locking protrusion 1311. This locking protrusion 1311 can be detachably engaged with the end of the lock hook assembly 120 to hold the lock hook assembly 120 in the locked position or release the lock hook assembly 120. When the key 160 is inserted into the lock body 110, it can drive the locking member 131 to move, causing the locking protrusion 1311 to disengage from the lock hook assembly 120. The structure of the locking member 131 is simpler and lighter than the traditional cylindrical lock cylinder structure, thus making the overall structure of the lightweight metal lock 100 simple and lightweight, with simple manufacturing process and low processing cost, which is conducive to production and widespread use.

[0079] Other structures of the lightweight metal lock 100 involved in this utility model are all conventional structures well known to those skilled in the art, and will not be described in detail here.

[0080] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A light metal lock comprising a lock body, a lock hook assembly and a key, the lock hook assembly being movably mounted to the lock body, characterised in that, Also includes: A locking assembly, the locking assembly including a locking member movably installed in the lock body, one end of the locking member having a locking protrusion, the locking protrusion being detachably engaged with the bottom end of the lock hook assembly; When the key is inserted into the lock body, it can drive the locking member to move, causing the locking protrusion to disengage from the lock hook assembly, thereby releasing the lock hook assembly.

2. The lightweight metal lock of claim 1, wherein, The locking component is also provided with an abutment block, which protrudes towards the bottom of the lock body; The end of the key is provided with a protrusion. When the key is inserted into the lock body and rotated, the protrusion pushes against the abutment block to drive the locking member to move to its release position, thereby disengaging the locking protrusion from the lock hook assembly.

3. The lightweight metal lock of claim 2, wherein, Also includes: A lower cover plate is installed at the bottom of the lock body. A through hole and an extended protrusion are provided on the lower cover plate. The extended protrusion extends radially along the through hole and communicates with the through hole. The extended protrusion is used for the sliding of the protrusion, and the through hole is used for the sliding of the key, so that the key can enter and exit the lock body.

4. The lightweight metal lock of claim 1, wherein, The locking assembly further includes a first elastic element. The end of the locking element away from the locking protrusion is provided with a positioning protrusion. The first elastic element is sleeved on the positioning protrusion and abuts against the end face of the locking element. The first elastic element is used to drive the locking element to move and reset to its locked position.

5. The lightweight metal lock as described in claim 3, characterized in that, It also includes an upper cover plate, which is installed in the lock body and located above the locking member, and the upper cover plate is provided with a fixing post protruding toward the locking member; The locking member has a through-hole, and the locking member is slidably connected to the fixing post through the through-hole. The fixing post protrudes below the locking member and is directly opposite the through-hole. The fixing post is used to be detachably inserted with the key and to allow the key to rotate around it.

6. The lightweight metal lock of claim 5, wherein, The key has a recessed hole at its end, the inner diameter of which is larger than the outer diameter of the fixing post. After the key is inserted into the fixing post through the recessed hole, the key can rotate around the fixing post to drive the locking member to move to its unlocking position.

7. A light metal lock as claimed in any one of claims 1-4, characterized in that The locking hook assembly includes a locking hook and a locking hook connector. The locking hook connector is fixed to the bottom end of the locking hook. The locking hook or the locking hook connector is provided with a locking platform that protrudes radially therefrom. The locking platform is used to lock separably with the locking protrusion to hold the locking hook assembly in a locked position or release the locking hook assembly.

8. The lightweight metal lock of claim 7, wherein, The locking hook assembly also includes a second elastic element, and the bottom of the locking hook connector is provided with a bottom groove. The second elastic element is disposed in the bottom groove, and the elastic force provided by the second elastic element makes the locking hook assembly always tend to move towards its unlocking position.

9. A light metal lock as claimed in any one of claims 1-4, characterized in that The lock body is provided with spaced-apart mounting holes and lock holes, and a blocking part protrudes from the inner wall of the mounting hole; The lock hook assembly includes at least a lock hook, which includes a long rod and a short rod. The long rod is movably installed in the mounting hole, and the long rod is provided with a limiting part extending radially thereon. When the lock hook moves to its unlocking position, the limiting part abuts against the blocking part to prevent the lock hook from disengaging from the lock body. The movement of the long rod causes the short rod to be inserted into or disengaged from the lock hole.

10. The lightweight metal lock of claim 9, wherein, The locking hook assembly also includes a limiting sleeve, which is fixed to the outside of the long rod, and the upper end face of the limiting sleeve forms the limiting part, while the lower end face of the limiting sleeve is flush with the bottom end face of the long rod.

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