Hardware padlock

Abstract

This utility model discloses a hardware padlock, in which a stop post is fixed inside the lock body. At the same time, at least two protrusions are arranged along the axial direction on the outer surface of the key, and a groove is formed between adjacent protrusions. The groove can rotate with the stop post to allow the key to drive the lock cylinder to rotate. When the lock cylinder rotates to the unlock position, the groove engages with the stop post to restrict the key from moving along the axial direction of the lock cylinder, thereby keeping the key on the lock body. Since the protrusions abut against the stop post, even if the key is subjected to outward pulling force, it can prevent the key from being pulled out, thereby preventing the key from accidentally falling off the lock body and ensuring that the key is always kept on the lock body in the unlocked state, improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of padlock technology, and in particular to a hardware padlock in which the key will not fall off when the lock is open. Background Technology

[0002] Padlocks are commonly used in luggage, lockers, suitcases, door handles, and other applications. A typical traditional padlock generally consists of a lock body, a U-shaped hook, a lock cylinder, and a key. The lock body is generally rectangular in shape and houses the lock cylinder. The U-shaped hook is attached to one end of the lock body, and the other end has a keyhole. When the correct key is inserted into the keyhole, the lock cylinder can be rotated to disengage the locking mechanism from the U-shaped hook, allowing it to slide out of the lock body. When the short leg of the U-shaped hook is completely removed from the lock body or separated from it in the unlocked state, the padlock can be removed from or attached to the latches or other similar parts of the luggage to be locked.

[0003] Existing padlocks, when unlocked, fail to hold the key, causing it to easily fall out of the lock body, leading to inconvenience and even key loss, thus reducing the user experience. Furthermore, the lock cylinder of existing padlocks is exposed within the lock body, making it easy to accidentally rotate and unlock the lock unintentionally, affecting security and user experience. To prevent accidental unlocking and enhance encryption, encryption is typically implemented on the key surface (complex serrations), along with various encryption pins or push pins within the lock body. However, this encryption system results in extremely complex manufacturing processes, requiring numerous components, leading to high costs and hindering commercial adoption.

[0004] Therefore, it is necessary to provide a hardware padlock that can jam the key in the unlocked state to prevent it from falling off, in order to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a hardware padlock that jams the key in the unlocked state to prevent it from falling off.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A hardware padlock is provided, comprising a lock body having a main cavity and a lock cylinder installed within the main cavity; the hardware padlock further includes a stop post and a key, the stop post being fixed to the lock body and extending into the main cavity; the outer surface of the key is provided with at least two protrusions arranged axially thereon, and adjacent protrusions forming a groove; when the key is inserted into the lock cylinder, one of the grooves rotatably engages with the stop post to allow the key to drive the lock cylinder to rotate; when the lock cylinder rotates to the unlock position, the groove engages with the stop post to restrict the key from moving axially along the lock cylinder.

[0007] Preferably, the key has protrusions on both opposite sides of the plane passing through its axis, and each side of the key has at least two protrusions. This application eliminates the traditional encryption side structure on the key, instead providing protrusions on both sides. When the key is inserted to unlock, if the key is incorrect, the protrusions on the key will be blocked, preventing insertion into the lock cylinder. Even if inserted, the protrusions will collide with the stop post, preventing rotation and unlocking, thus achieving key encryption and simplifying the internal structure of both the key and the lock body. In the unlocked state, the key's slot rotates to engage with the stop post, restricting the key's axial movement along the lock cylinder. This prevents the key from accidentally falling out of the lock body. Even if the key is subjected to outward pulling force, the protrusions will abut against the stop post, preventing the key from being pulled out, thus keeping the key always on the lock body and improving the user experience.

[0008] Preferably, the lock cylinder is rotatably installed within the main body cavity. The lock cylinder has a radially extending through-slot, which rotatably engages with the stop post. When the key is inserted into the lock cylinder, one of the slots communicates with the through-slot. The rotatable engagement of the through-slot, the slot, and the stop post allows the key to rotate the lock cylinder. The stop post does not obstruct the lock cylinder's rotation for unlocking or locking, thus allowing the lock cylinder to switch between a locked and unlocked position. When the lock cylinder rotates to the unlocked position, the stop post engages precisely in the slot to restrict the key's axial movement along the lock cylinder, ensuring the key is always held on the lock body.

[0009] Preferably, the key includes a connected key handle and a key body, the protrusion is provided on the key body, the key body is used to drive the lock cylinder to rotate, and when the key body is inserted into the lock cylinder, one of the slots is connected to the lock cylinder through slot, and the key handle is located outside the lock body for user operation.

[0010] Preferably, the lock cylinder also has a lock cylinder cavity extending along its axial direction and penetrating one end therein, the lock cylinder through groove is formed on the side wall of the lock cylinder and communicates with the lock cylinder cavity, the key can be detachably inserted into the lock cylinder cavity and can be positioned relative to the lock cylinder so as to drive the lock cylinder to rotate.

[0011] Preferably, the inner end face of the lock cylinder cavity is recessed with a positioning groove corresponding to the protrusion. When the key is inserted into the lock cylinder cavity, the protrusion engages in the positioning groove to achieve positioning.

[0012] Preferably, the inner end face of the lock cylinder cavity is provided with a lock cylinder positioning post, and the end face of the key is provided with an end face recess corresponding to the lock cylinder positioning post. When the key is inserted into the lock cylinder cavity, the end face recess is inserted into the lock cylinder positioning post and the two are tightly fitted together, thereby realizing the positioning between the key and the lock cylinder.

[0013] Preferably, at least one washer is fitted onto the lock cylinder positioning post. The washer has an elastic structure, and when the end face recess is inserted into the lock cylinder positioning post, it presses the washer between the inner wall of the end face recess and the lock cylinder positioning post. This prevents the key body from moving axially along the lock cylinder positioning post. Therefore, even when the lock cylinder is in the locked position, the key is not easily dislodged from the lock body after being inserted into the lock cylinder positioning post. This ensures that the key is held on the lock body when the lock cylinder is in both the locked and unlocked positions, further improving the user experience.

[0014] Preferably, the lock cylinder positioning post is recessed with a groove extending radially therein, and the washer is engaged in the groove, making the installation of the washer more convenient and stable.

[0015] Preferably, the lock cylinder positioning post is further recessed with an vent groove extending along its axial direction. The vent groove is connected to the groove. The vent groove makes it easier to insert the key into the lock cylinder positioning post.

[0016] Preferably, one end of the lock cylinder positioning post is provided with a connecting rod, and the inner end face of the lock cylinder cavity is provided with a concave cavity connecting hole corresponding to the connecting rod. The connecting rod is fixedly inserted into the concave cavity connecting hole, making the installation of the lock cylinder positioning post more convenient.

[0017] Preferably, the hardware padlock further includes a lock bar movably mounted on the lock body; one end of the lock cylinder is also provided with a lock cylinder stop and a rotating locking part, the lock cylinder stop and the rotating locking part are spaced apart and have a height difference, and by rotating the lock cylinder, the rotating locking part and the lock cylinder stop can respectively abut against the lock bar, thereby keeping the lock bar in the locked position and the unlocked position.

[0018] Preferably, the locking rod includes a long locking hook and a short locking hook. The long locking hook is movably mounted on the lock body, and the end of the long locking hook is provided with a locking end face. The locking end face abuts against the rotating locking part and the lock cylinder stop respectively, so as to realize the switching of the locking rod between the locking position and the unlocking position, thereby allowing the short locking hook to be inserted into or disengaged from the lock hole on the lock body.

[0019] Preferably, the rotating locking portion extends downward from one end of the lock cylinder stop, and when the end of the rotating locking portion away from the lock cylinder stop abuts against the locking end face, the locking rod is held in the locked position. When the lock cylinder rotates and the rotating locking portion disengages from the locking end face, the locking rod can move upward and the locking end face abuts against the lower end face of the lock cylinder stop, holding the locking rod in the unlocked position.

[0020] Preferably, the end of the lock hook rod is further provided with a pushing surface, which is located above the locking end face. When the locking end face abuts against the lower end face of the lock cylinder stop, the pushing surface abuts against the upper end face of the lock cylinder stop. When the lock rod is moved downward by an external force, the locking cylinder is driven to rotate toward the locking position by pushing the lock cylinder stop through the pushing surface.

[0021] Preferably, the lock body is provided with spaced mounting holes and lock holes, the long rod of the lock hook is movably installed in the mounting hole, and the short rod of the lock hook is inserted into or disengaged from the lock hole by moving the long rod of the lock hook.

[0022] Preferably, the bottom of the lock hook rod is further provided with a bottom end groove, and a second elastic element is provided in the bottom end groove. The elastic force provided by the second elastic element makes the lock hook rod always tend to move towards the unlocking position, and through the abutment of the locking end face with the rotating locking part and the lock cylinder stop, the elastic force of the second elastic element prevents the lock hook rod from being ejected from the lock body.

[0023] Preferably, the lock cylinder is further provided with an abutting platform on its side wall. The abutting platform is offset from the axis of the lock cylinder. When the abutting platform is subjected to external force, the lock cylinder can be rotated and reset to the locked position along its axis.

[0024] Preferably, the hardware padlock further includes a sleeve assembly, which is installed on the lock body and extends into the main body cavity, and the sleeve assembly always abuts against the abutment platform to keep the lock cylinder in the locked or unlocked position.

[0025] Preferably, the sleeve assembly includes at least a sleeve and a first elastic member installed inside the sleeve. The sleeve is movably installed in the lock body and corresponds to the abutment platform. The elastic force of the first elastic member ensures that the sleeve always abuts against the abutment platform, thereby providing a force to the lock cylinder to keep the lock cylinder stationary when the rotating locking portion or the lock cylinder stop abuts against the locking end face.

[0026] Preferably, the sleeve assembly further includes a plug and a positioning protrusion protruding from the plug. The end of the first elastic member away from the sleeve is sleeved on the positioning protrusion and abuts against the plug. The first elastic member is positioned by the plug and the positioning protrusion, so that the first elastic member is not easily deflected when the lock cylinder is rotated and deformed by compression.

[0027] Preferably, the hardware padlock further includes a lock cylinder sub-component, which is fixed within the main body cavity and docks with the lock cylinder. The lock cylinder sub-component has a hollow channel and a sub-component groove. The hollow channel extends axially along the lock cylinder sub-component and passes through both ends. The sub-component groove extends radially along the lock cylinder sub-component and connects to the hollow channel. The protrusion slides into the sub-component groove, and the key moves in and out of the lock cylinder by sliding the protrusion along the sub-component groove and the key along the hollow channel. By enclosing the lock cylinder inside the lock body with the lock cylinder sub-component, accidental human contact with the lock cylinder can be prevented, thus effectively preventing unintentional unlocking and improving locking security and user experience.

[0028] Preferably, there are two sub-part grooves, and the two sub-part grooves are symmetrical about each other along the center of the hollow channel.

[0029] Preferably, one end face of the lock body is recessed with a main body groove, and a stop post through hole communicating with the main body cavity is opened in the main body groove. The stop post is fixed in the stop post through hole, making the installation of the stop post more convenient.

[0030] Preferably, the main body groove is further provided with a sleeve through hole that communicates with the main body cavity, and the sleeve assembly is installed in the sleeve through hole, making the installation of the sleeve assembly more convenient.

[0031] Preferably, the hardware padlock further includes a main cover plate, the shape of which corresponds to the shape of the main groove, and the main cover plate is detachably installed in the main groove.

[0032] Preferably, a matching positioning post and a positioning hole are provided between the main cover plate and the main groove, so that the main cover plate can be detachably connected through the positioning post and the positioning hole.

[0033] Preferably, when the main cover plate is installed in the main groove, the upper surface of the main cover plate and the upper surface of the lock body are on the same horizontal plane.

[0034] Compared with the prior art, the hardware padlock of this utility model has the following technical effects:

[0035] 1. A stop post is fixed inside the lock body and extends into the main body cavity. At the same time, at least two protrusions are arranged along its axial direction on the outer surface of the key. Adjacent protrusions form a groove, and the groove can rotate with the stop post. In this way, when the key is inserted into the lock cylinder and drives the lock cylinder to rotate, the groove on it moves along the stop post and does not affect the key's rotation of the lock cylinder. When the lock cylinder rotates to the unlock position, the groove just engages with the stop post, thereby restricting the key's axial movement along the lock cylinder. At this time, even if the key is subjected to an outward pulling force, its protrusions can abut against the stop post and prevent the key from being pulled out, thereby preventing the key from accidentally falling out of the lock body. This ensures that the key is always kept on the lock body in the unlocked state, improving the user experience.

[0036] Second, the traditional encryption side structure on the outer surface of the key is eliminated, and only a protrusion is set on the outer surface of the key. In this way, the key can only be inserted into the lock cylinder when it is correct. If the key is incorrect, the protrusion on the key will be blocked and it cannot be inserted, or after being inserted into the lock cylinder, it will not be able to rotate to unlock due to the interference between the protrusion and the blocking post. This achieves the effect of key encryption, while simplifying the internal structure of the key and the lock body, reducing the number of parts, thereby simplifying the production process, reducing production costs, and making it more conducive to commercial promotion and application. Attached Figure Description

[0037] Figure 1 This is a structural schematic diagram of an embodiment of the hardware padlock of this utility model.

[0038] Figure 2 yes Figure 1 The exploded diagram.

[0039] Figure 3 yes Figure 2 A further exploded view of the main body cover plate and sleeve assembly.

[0040] Figure 4 yes Figure 2 A structural diagram of the central lock cylinder from another angle.

[0041] Figure 5 yes Figure 4 A schematic diagram of the end structure.

[0042] Figure 6 yes Figure 4 A structural diagram from another angle.

[0043] Figure 7 yes Figure 6 A schematic diagram of the end structure.

[0044] Figure 8 yes Figure 4 Another structural diagram from another angle.

[0045] Figure 9 yes Figure 8 A cross-sectional schematic diagram.

[0046] Figure 10 yes Figure 2 A structural schematic diagram of the central lock cylinder component from another angle.

[0047] Figure 11 yes Figure 2 A schematic diagram of the structure of the lock cylinder and its sub-components.

[0048] Figure 12 yes Figure 1 A schematic diagram of the key being inserted into the lock body.

[0049] Figure 13 yes Figure 12 A cross-sectional view of the sleeve assembly.

[0050] Figure 14 yes Figure 12 A cross-sectional view through the stop post.

[0051] Figure 15 yes Figure 12 A cross-sectional view of the key body.

[0052] Figure 16 yes Figure 12 A schematic diagram of the structure of the lock cylinder, stop post, and key working together.

[0053] Figure 17 yes Figure 16 A structural diagram from another angle.

[0054] Figure 18 yes Figure 12 A schematic diagram of the structure in which the key is rotated to the unlocked state.

[0055] Figure 19 yes Figure 18 A cross-sectional view of the key body.

[0056] Figure 20 yes Figure 18 A cross-sectional view through the stop post.

[0057] Figure 21 yes Figure 18 A schematic diagram of the structure of the lock cylinder, stop post, and key working together.

[0058] Figure 22 yes Figure 21 A structural diagram from another angle.

[0059] Figure 23 yes Figure 21 Another structural diagram from another angle.

[0060] Figure 24 This is a schematic diagram of the lock cylinder structure in another embodiment of the hardware padlock of the present invention.

[0061] Figure 25 yes Figure 24 A structural diagram from another angle.

[0062] Figure 26 yes Figure 24 A sectional view.

[0063] Figure 27 yes Figure 24 A cross-sectional view of the lock cylinder and key working together. Detailed Implementation

[0064] 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.

[0065] First combine Figures 1-27 As shown, the hardware padlock 100 provided by this utility model 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.

[0066] First combine Figures 1-3As shown, in one embodiment of this application, the hardware padlock 100 includes a lock body 110, a stop post 120, a sleeve assembly 130, a lock cylinder 140, a lock cylinder sub-assembly 150, a key 160, and a lock rod 170. The lock body 110 has a hollow main cavity 111 inside, which communicates with the outside through a cavity inlet 112 located on one side wall of the lock body 110. The lock cylinder 140 is rotatably mounted within the main cavity 111. The lock cylinder 140 has an inner cavity 141 extending through one axial end, and a radially extending through groove 142 communicating with the inner cavity 141. A sleeve assembly 130 is mounted on the lock body 110 and extends into the main body cavity 111, abutting against the lock cylinder 140. It is used to hold the lock cylinder 140 in the locked or unlocked position, as detailed below. The key 160 cooperates with the lock cylinder 140 to drive the lock cylinder 140 from the locked position to the unlocked position. A locking rod 170 is movably mounted on the lock body 110 and cooperates with the lock cylinder 140, allowing the lock cylinder 140 to lock and unlock the locking rod 170.

[0067] Combination Figure 1-2 , Figure 16-17 , Figure 21-23 As shown, in this embodiment, the stop post 120 is fixed to the lock body 110 and extends into the lock cylinder through groove 142, and the stop post 120 is rotatably engaged with the lock cylinder through groove 142. Simultaneously, the outer surface of the key 160 has at least two protrusions 1621 arranged axially, forming a groove 1622 between adjacent protrusions 1621, and the groove 1622 can rotatably engage with the stop post 120. Specifically, when the key 160 is inserted into the lock cylinder 140, the groove 1622 communicates with the lock cylinder through groove 142 and rotatably engages with the stop post 120, as shown... Figure 16-17 As shown, this allows the key 160 to rotate the lock cylinder 140 and release the locking lever 170. Figure 21-23 As shown, when the lock cylinder 140 releases the locking rod 170, the key 160 and the lock cylinder 140 rotate until they engage with the stop post 120 in the slot 1622, thereby restricting the key 160 from moving axially along the lock cylinder 140. This allows the padlock 100 to hold the key 160 in the unlocked state, preventing it from falling out and improving the user experience.

[0068] The following is combined Figure 2-3 As shown, in one embodiment of this application, the lower end of the stop post 120 forms a stop portion 121, the outer diameter of which is smaller than the outer diameter of other parts of the stop post 120. (In conjunction with...) Figure 16-17As shown, the outer diameter of the stop part 121 is smaller than the width of the lock cylinder through groove 142 and the slot 1622. Thus, after the stop post 120 and the lock cylinder 140 are installed, the stop part 121 protrudes into the lock cylinder through groove 142, and when the lock cylinder 140 rotates, the lock cylinder through groove 142 can move along the stop part 121, so as not to block the rotation of the lock cylinder 140, thereby realizing the rotational engagement between the stop post 120 and the lock cylinder 140.

[0069] Continue to combine Figure 1-2 As shown, in one embodiment of this application, the key 160 has protrusions 1621 on both opposite sides. The opposite sides refer to the two sides facing each other along a plane passing through its axis P1, which is perpendicular to the plane containing the key handle 161 (described later). Figure 1 As shown. Furthermore, the protrusions 1621 on both sides of the key 160 are symmetrically arranged along a plane passing through its axis P1, and each side of the key 160 has at least two protrusions 1621. For example, in one specific embodiment, the protrusions 1621 on both sides are symmetrically arranged vertically along a plane passing through the axis P1, and each side of the key 160 has three protrusions 1621, forming two slots 1622 between the three protrusions 1621. The three protrusions 1621 can be evenly or non-evenly arranged. Of course, in other embodiments, more protrusions 1621 can be provided on each side of the key 160.

[0070] The following is combined Figure 1 - 2、 Figure 14-15 As shown, in this embodiment, the key 160 specifically includes a connected key handle 161 and a key body 162. The key body 162 is used to cooperate with the lock cylinder 140 and drive the lock cylinder 140 to rotate, while the key handle 161 is used for user operation. More preferably, the key body 162 is generally cylindrical in shape; however, the key body 162 can also be configured with other shapes. The end face of the key body 162 has an end face recess 1623, which extends axially along the key body 162, such as... Figure 14-15 As shown, protrusions 1621 are provided on both opposite sides of the key body 162. The opposite sides referred to here are the two opposite sides along the plane passing through the axis P1 of the key body 162, as shown... Figure 1As shown. When the key body 162 is inserted into the lock cylinder 140, it is connected to the lock cylinder 140 through the end face recess 1623 (see below for details). One of the slots 1622 is connected to the lock cylinder through slot 142. The key handle 161 is located outside the lock body 110 for user operation. By rotating the key handle 161, the key body 162 is rotated, which in turn drives the lock cylinder 140 to rotate. The slot 1622 and the lock cylinder through slot 142 can move along the stop part 121 without obstructing the rotation of the lock cylinder 140 and the key 160.

[0071] The following is combined Figure 4-5 , Figure 8 As shown, in one embodiment of this application, the lock cylinder cavity 141 extends axially along the lock cylinder 140 and penetrates one end therethrough. A lock cylinder through groove 142 is formed on the side wall of the lock cylinder 140 and communicates with the lock cylinder cavity 141. The lock cylinder through groove 142 has an arc-shaped structure. Furthermore, a lock cylinder positioning post 143 is provided on the inner end face of the lock cylinder cavity 141. This lock cylinder positioning post 143 extends axially along the lock cylinder 140 and protrudes outward from the lock cylinder 140 (see...). Figure 4 , Figure 8 As shown), the outer diameter of the lock cylinder positioning pin 143 mates with the end face recess 1623 provided on the key body 162. Figure 14-15 As shown, when the key body 162 is inserted into the inner cavity 141 of the lock cylinder, the lock cylinder positioning pin 143 is inserted into the end face recess 1623 and the two are tightly fitted together, thereby fixing the key body 162 and realizing the positioning between the key body 162 and the lock cylinder 140, so that the key 160 can drive the lock cylinder 140 to rotate.

[0072] Combination Figure 15-17 As shown, when the lock cylinder 140 is in the locked position, the slot 1622 on the key body 162 inserted into the lock cylinder 140 is connected to the lock cylinder through slot 142, and the slot 1622 on the key body 162 is misaligned with the stop post 120 (see...). Figure 16 When the key body 162 drives the lock cylinder 140 to rotate, the slot 1622 and the lock cylinder through slot 142 move along the stop post 120 until the lock cylinder 140 rotates to the unlock position. Therefore, the stop post 120 will not interfere with the rotation of the lock cylinder 140 to unlock. Figure 19-22 As shown, when the key body 162 rotates the lock cylinder 140 to the unlock position and releases the lock bar 170, the slot 1622 on the key body 162 rotates to a position where it engages with the stop post 120. That is, the stop post 120 is engaged in a slot 1622 (see...). Figure 19This prevents the key body 162 from sliding off along the axial direction of the lock cylinder 140, thus keeping the key 160 on the lock body 110 at all times and effectively preventing the key 160 from falling off accidentally. Even if the key 160 is subjected to an outward pulling force, the protrusion 1621 on it can abut against the stop post 120 to prevent the key 160 from being pulled out. This ensures that the key 160 is always kept on the lock body 110 in the unlocked state. Only when the lock cylinder 140 rotates back to the locked position will the stop post 120 and the slot 120 disengage again, allowing the key 160 to be pulled out, thereby improving the user experience.

[0073] The following is combined Figure 14-15 , Figures 19-20 As shown, in a preferred embodiment, one end of the lock cylinder positioning pin 143 is provided with a connecting rod 1431, and the inner end face of the lock cylinder cavity 141 is provided with a recessed connecting hole 1411 corresponding to the connecting rod 1431. The connecting rod 1431 is inserted into the recessed connecting hole 1411 (see...). Figure 15 The lock cylinder positioning pin 143 is then tightened and secured, thus securing it in place and making its installation easier. Of course, other methods of installing the lock cylinder positioning pin 143 are also feasible.

[0074] The following is combined Figure 5 , Figure 15 As shown, in another preferred embodiment, the inner end face of the lock cylinder cavity 141 is further recessed with a positioning groove 144 corresponding to the shape of the protrusion 1621. When the key body 162 is inserted into the lock cylinder positioning post 143, the protrusion 1621 is just engaged in the positioning groove 144, further strengthening the positioning between the key body 162 and the lock cylinder 140, thereby enabling the key body 162 to more effectively drive the lock cylinder 140 to rotate.

[0075] Of course, a positioning groove 144 and a lock cylinder positioning post 143 can also be provided on the inner end face of the lock cylinder cavity 141 to strengthen the positioning of the key body 162 and the lock cylinder 140 in the radial (rotation direction) direction, making it easier for the key 160 to drive the lock cylinder 140 to rotate.

[0076] The following is combined Figures 6-7 As shown, in one embodiment of this application, the end of the lock cylinder 140 away from the lock cylinder through groove 142 is further provided with a rotating locking portion 145 and a lock cylinder stop 146. The rotating locking portion 145 and the lock cylinder stop 146 are both located on the end face of the lock cylinder 140 and have a height difference. Specifically, the lock cylinder stop 146 is located above the rotating locking portion 145. By rotating the lock cylinder 140, the rotating locking portion 145 and the lock cylinder stop 146 can respectively abut against the lock rod 170, thereby holding the lock rod 170 in the locked position and the unlocked position.

[0077] The following is combined Figure 6-7 , Figure 17 , Figure 22 As shown, in one specific embodiment, the lock cylinder stop 146 extends approximately along the diametrical direction of the end face of the lock cylinder 140, and the lock cylinder stop 146 has a curved lower end face 1461 and a planar upper end face 1462, as shown. Figure 7 As shown. The top end of the rotating latching portion 145 is connected to one end of the lock cylinder stop 146. The rotating latching portion 145 extends downward toward the lock cylinder stop 146 and has an arc-shaped structure. The bottom end of the rotating latching portion 145, away from the lock cylinder stop 146, forms an abutment end 1451. Figure 17 , Figure 22 As shown, when the abutting end 1451 of the rotating locking part 145 abuts against the locking rod 170, the locking rod 170 is held in the locked position, as... Figure 17 As shown. When the lock cylinder 140 rotates and the abutting end 1451 of the rotating locking part 145 disengages from the lock rod 170, the lock rod 170 can move upward and abut against the lower end face 1461 of the lock cylinder stop 146, thereby holding the lock rod 170 in the unlocked position, as shown. Figure 22 As shown.

[0078] The following is combined Figures 4-9 As shown, in one embodiment of this application, a contact platform 147 is further provided on the side wall of the lock cylinder 140. The contact platform 147 is formed by a recess in the outer surface of the lock cylinder 140, and is offset from the axis P2 of the lock cylinder 140. Specifically, the inner edge of the contact platform 147 is a certain distance from the axis P2 of the lock cylinder 140, and the contact platform 147 and the lock cylinder through groove 142 are located on both sides of the axis P2 of the lock cylinder 140, as shown in the figure. Figure 4 , Figure 9 As shown. Thus, when the abutment platform 147 is subjected to an external force, the lock cylinder 140 can rotate along its axis P2 toward the locked position.

[0079] The following is combined Figure 2-3 , Figure 13 As shown, in this embodiment, the sleeve assembly 130 is mounted on the lock body 110 and always abuts against the abutment platform 147. The sleeve assembly 130 always applies a downward force to the lock cylinder 140 (see...). Figure 13 (as shown), thereby holding the lock cylinder 140 in the locked or unlocked position.

[0080] In one specific embodiment, the sleeve assembly 130 includes at least a sleeve 131 and a first elastic member 132 installed within the sleeve 131. The sleeve 131 is movably mounted on the lock body 110 and protrudes above the abutment platform 147. The elastic force of the first elastic member 132 ensures that the lower end of the sleeve 131 always abuts against the abutment platform 147. Therefore, when the rotating locking part 145 or the lock cylinder stop 146 abuts against the lock rod 170, the sleeve assembly 130 applies a downward force to the lock cylinder 140, keeping the lock cylinder 140 stationary and stably maintaining the lock cylinder 140 in the locked or unlocked position. Figure 17 , Figure 23 As shown. Additionally, when the lock cylinder 140 is subjected to external force... Figure 23 The release position shown is towards Figure 17 When the lock position is rotated, the elastic force of the first elastic element 132 also provides a driving force for the lock cylinder 140 to reset. That is, the elastic force of the first elastic element 132 to restore its deformation drives the lock cylinder 140 to rotate and reset to the lock position.

[0081] More specifically, the sleeve assembly 130 further includes a plug cap 133, on which a positioning protrusion 134 protrudes. The plug cap 133 and the positioning protrusion 134 can be integrally formed or separately formed and then fixedly connected. The end of the first elastic member 132 away from the sleeve 131 is sleeved on the positioning protrusion 134 and abuts against the plug cap 133. Specifically, the upper end of the first elastic member 132 is sleeved on the positioning protrusion 134 and abuts against the plug cap 133. By connecting the plug cap 133 to the main cover plate 119 (described later) and positioning the upper end of the first elastic member 132, not only is the installation of the first elastic member 132 more convenient, but also, during the process of the lock cylinder 140 rotating and pushing the sleeve 131 to squeeze the first elastic member 132, the first elastic member 132 is less likely to deviate.

[0082] 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.

[0083] The following is combined Figures 12-23 As shown, in one embodiment of this application, the locking rod 170 includes a long locking rod 171 and a short locking rod 172, which are integrally formed. The end face of the short locking rod 172 is provided with a locking rod end 1721. The long locking rod 171 is movably installed in the lock body 110 and extends into the main body cavity 111. The bottom end of the long locking rod 171 is detachably engaged with the lock cylinder 140, thereby allowing the locking rod end 1721 of the short locking rod 172 to be inserted into the lock body 110 to achieve locking or to detach from the lock body 110 to achieve unlocking.

[0084] The following is combined Figure 14-15 , Figure 17 , Figure 19-23 As shown, in this embodiment, the bottom of the lock hook rod 171 is provided with a bottom end groove 1711, and a second elastic member 173 is provided in the bottom end groove 1711. The other end of the second elastic member 173 abuts against the lock body 110. The elastic force provided by the second elastic member 173 causes the lock hook rod 171 to always have a tendency to move towards the unlocking position, specifically, it causes the lock hook rod 171 to always have a tendency to move upward.

[0085] In this embodiment, the second elastic element 173 is preferably a spring, but it is not limited to this, and other elastic elements can also be used.

[0086] Continue to combine Figure 14-15 , Figure 17 , Figure 19-23 As shown, in this embodiment, the end of the long locking rod 171 is provided with a locking end face 1712. The locking end face 1712 is arranged radially along the long locking rod 171 and has a ring structure. By abutting the locking end face 1712 with the rotating locking part 145 and the lock cylinder stop 146 respectively, the locking rod 170 can be switched between the locked position and the unlocked position. Specifically, when the locking end face 1712 abuts against the abutting end 1451 of the rotating locking part 145, the locking rod 170 is locked by the lock cylinder 140 and is in the locked position, such as... Figure 17 As shown, at this time, the long rod 171 of the lock hook compresses the second elastic element 173, causing it to deform. When the lock cylinder 140 rotates, causing the abutting end 1451 of the rotating locking part 145 to disengage from the locking end face 1712, the second elastic element 173 restores its deformation and drives the long rod 171 of the lock hook to move upward until the locking end face 1712 abuts against the lower end face 1461 of the lock cylinder stop 146, as shown. Figures 19-20 , Figure 22-23 As shown, at this time, the locking rod 170 moves to the unlocking position, and the locking end face 1712 abuts against the lock cylinder stop 146 to prevent the elastic force of the second elastic member 173 from ejecting the lock hook rod 171 from the lock body 110. That is, the lock cylinder stop 146 keeps the locking rod 170 in the unlocking position to prevent it from disengaging from the lock body 110.

[0087] Continue to combine Figure 14-15 , Figure 17 , Figure 19-23 As shown, in this embodiment, the end of the locking hook rod 171 is further provided with a pushing surface 1713. The pushing surface 1713 is arranged radially along the locking hook rod 171 and has a ring structure, and the pushing surface 1713 is located above the locking end face 1712. See reference. Figure 22-23As shown, when the locking end face 1712 abuts against the lower end face 1461 of the lock cylinder stop 146, the pushing surface 1713 abuts against the upper end face 1462 of the lock cylinder stop 146. Thus, when the locking rod 170 is pressed downwards by external force, the pushing surface 1713 pushes against the lock cylinder stop 146, driving the lock cylinder 140 to rotate. Furthermore, the lower end of the locking hook rod 171 again presses against the second elastic element 173, causing it to deform, until the lock cylinder 140 rotates to the locked position.

[0088] In this application, the locking rod 170 is preferably U-shaped, but it is not limited to this and other shapes are also possible.

[0089] The following is combined Figure 1-2 , Figure 10-11 As shown, in one embodiment of this application, the hardware padlock 100 further includes a lock cylinder sub-component 150, which is fixed within the main body cavity 111 of the lock body 110 and docks with the lock cylinder 140. Specifically, the lock cylinder sub-component 150 has a hollow channel 151 and a sub-component groove 152. The hollow channel 151 extends axially along the lock cylinder sub-component 150 and passes through both ends therethrough. The sub-component groove 152 extends radially along the lock cylinder sub-component 150 and connects to the hollow channel 151. At least one sub-component groove 152 is provided, specifically corresponding to the protrusion 1621 provided on the key body 162. The hollow channel 151 is used for sliding the key body 162, and the sub-component groove 152 is used for sliding the protrusion 1621, so that the key 160 can smoothly enter and exit the lock cylinder 140. The lock cylinder sub-component 150 is designed to prevent accidental human contact with the lock cylinder 140, which could cause the lock cylinder 140 to rotate and thus result in unintentional unlocking, thereby improving the security of the lock and enhancing the user experience.

[0090] Continue to combine Figure 10-11 As shown, in one specific embodiment, the lock cylinder sub-component 150 is provided with two symmetrical sub-component grooves 152 for sliding the protrusions 1621 provided on both sides of the key body 162. Combined with... Figure 12-13 As shown, after the lock cylinder sub-component 150 is fixed to the main body cavity 111, the lock cylinder sub-component 150 is positioned exactly inside the cavity inlet 112, and the end of the lock cylinder sub-component 150 with the sub-component groove 152 is flush with the side of the lock body 110 (see...). Figure 1 , Figure 12 Hollow channel 151 is connected to lock cylinder cavity 141 (see) Figure 14When the key 160 is inserted, the key body 162 slides along the hollow channel 151, and at the same time, the protrusion 1621 is inserted into the sub-part groove 152 and slides along the sub-part groove 152, so that the key 160 can smoothly enter the lock cylinder 140. In other embodiments, the number and position of the sub-part groove 152 are flexibly set according to the position of the protrusion 1621 provided on the key body 162.

[0091] Let's combine them again below. Figure 2-3 , Figure 14-15 , Figures 19-20 As shown, in one embodiment of this application, the upper surface of the lock body 110 is further provided with spaced mounting holes 113 and lock holes 114, with the mounting holes 113 communicating with the main body cavity 111. The locking hook long rod 171 of the locking rod 170 is movably installed in the mounting hole 113, and the locking rod end 1721 of the locking hook short rod 172 is inserted into the lock hole 114 by the movement of the locking hook long rod 171 (e.g., ...). Figure 14-15 (as shown) or disengage from keyhole 114 (as shown) Figures 19-20 As shown in the figure, the locking rod 170 can be used to lock or unlock.

[0092] Combination Figure 1-3 As shown, in a preferred embodiment, the upper surface of the lock body 110 is further recessed with a main groove 115, which is located between the mounting hole 113 and the lock hole 114. Furthermore, the hardware padlock 100 also includes a main cover plate 119, the shape of which corresponds to the shape of the main groove 115. The main cover plate 119 is detachably installed in the main groove 115, and when the main cover plate 119 is installed, its upper surface is at the same level as the upper surface of the lock body 110.

[0093] The following is combined Figure 13-14 As shown, the main body groove 115 also has a sleeve through hole 116 and a stop post through hole 117 communicating with the main body cavity 111. The sleeve assembly 130 is installed in the sleeve through hole 116, with the lower end of its sleeve 131 protruding from the sleeve through hole 116 and abutting against the abutting platform 147. Its plug cap 133 is fixed to the main body cover plate 119, as shown. Figure 13 As shown. The stop post 120 is disposed in the stop post through hole 117 and fixed to the main cover plate 119 by welding, bonding or other means, and the lower end of the stop part 121 protrudes out of the stop post through hole 117 and is located in the lock cylinder through groove 142, as shown. Figure 14 As shown. This structural design makes the installation of the stop post 120 and the sleeve assembly 130 more convenient.

[0094] Continue to combine Figure 2-3 , Figure 13-14As shown, in a preferred embodiment, the main cover plate 119 and the main groove 115 are provided with matching positioning posts 1191 and positioning holes 118, which enable the detachable connection of the main cover plate 119. In a specific embodiment, two positioning holes 118 are provided in the main groove 115, and the two positioning holes 118 are arranged along the diagonal of the main groove 115. Correspondingly, two positioning posts 1191 are protruding along the diagonal of the main cover plate 119. The main cover plate 119 is installed by inserting the two positioning posts 1191 into the two positioning holes 118, making the connection of the main cover plate 119 more stable when installed in the main groove 115.

[0095] In this application, the hardware padlock 100 is preferably made of titanium alloy, aluminum alloy or other alloys, so that the surface of the hardware padlock 100 is smooth and shiny, more textured, more beautiful in design, and has better wear resistance, aging resistance and impact resistance.

[0096] The following is combined Figures 24-27 As shown, in another embodiment of this application, the structure of the hardware padlock 100 is the same as described above. Figures 1-23 The only difference in the illustrated embodiment is that at least one washer 148 is also fitted onto the lock cylinder positioning post 143, and the washer 148 has an elastic structure. For example, in Figure 24-25 In the specific embodiment shown, two spaced-apart washers 148 are fitted onto the lock cylinder positioning post 143. With this configuration, when the end face recess 1623 of the key body 162 is inserted into the lock cylinder positioning post 143, the washers 148 are pressed between the lock cylinder positioning post 143 and the inner wall of the end face recess 1623 (see...). Figure 27 This design prevents the key body 162 from moving axially along the lock cylinder positioning post 143, thereby enhancing the stability of the key body 162 connection. In this way, even when the lock cylinder 140 is in the locked position, the key 160 inserted into the lock cylinder positioning post 143 is less likely to fall off the lock body 110, ensuring that the key 160 is held on the lock body 110 in both the locked and unlocked positions of the lock cylinder 140, further improving the user experience.

[0097] Continue to combine Figures 24-27As shown, in a preferred embodiment, the lock cylinder positioning post 143 is recessed with a groove 1432, the groove 1432 being arranged radially along the lock cylinder positioning post 143, and the washer 148 engaging within the groove 1432, making the installation of the washer 148 more convenient and stable. More preferably, the lock cylinder positioning post 143 is also provided with at least one vent groove 1433, the vent groove 1433 being formed by a surface recess of the lock cylinder positioning post 143, and the vent groove 1433 extending axially along the lock cylinder positioning post 143, the vent groove 1433 connecting each groove 1432. More specifically, the groove 1432 is located approximately in the middle of the vent groove 1433, and intersects with and communicates with the vent groove 1433 (see...). Figure 26 This structural design allows for air release when the key body 162 is pressed against the lock cylinder positioning post 143 during the insertion process, making it easier for the key body 162 to be inserted into the lock cylinder positioning post 143.

[0098] In this embodiment, the structure of the other parts of the hardware padlock 100 is the same as described above. Figures 1-23 The same applies to the embodiments shown, so they will not be described again.

[0099] Let's combine them again below. Figures 1-27 The working principle and process of the hardware padlock 100 of this utility model are explained as shown.

[0100] First combine Figure 1 , Figure 12 As shown, when unlocking is required, the correct key 160 is inserted into the lock cylinder 140. Specifically, the key body 162 is inserted into the hollow channel 151 of the lock cylinder sub-component 150, and the protrusion 1621 is inserted into the groove 152 of the sub-component. Pushing the key 160 causes its body 162 to slide along the hollow channel 151, and its protrusion 1621 to slide along the groove 152 of the sub-component, thus allowing the key 160 to smoothly slide into the lock cylinder 140. Figure 12 As shown.

[0101] Combination Figures 14-15 As shown, when the key 160 is inserted into the inner cavity 141 of the lock cylinder 140, the end face recess 1623 on the key body 162 fits precisely into the lock cylinder positioning post 143, achieving a tight fit and thus fixing the key body 162, achieving positioning between the key body 162 and the lock cylinder 140. Simultaneously, the protrusion 1621 at the end of the key body 162 engages precisely within the positioning groove 144 on the inner end face of the lock cylinder cavity 141, further strengthening the radial positioning between the key body 162 and the lock cylinder 140. Figure 16-17 As shown, at this time, a slot 1622 between the protrusions 1621 is connected to the lock cylinder through slot 142 (see...). Figure 15The slot 1622 is offset from the stop portion 121 (see...). Figure 16-17 This allows the key 160 to rotate the lock cylinder 140.

[0102] Furthermore, after the end face recess 1623 of the key body 162 is inserted into the lock cylinder positioning post 143, the washer 148 is pressed between the inner wall of the end face recess 1623 and the lock cylinder positioning post 143, as shown. Figure 27 As shown, this prevents the key body 162 from moving axially along the lock cylinder positioning post 143. At this time, even though the lock cylinder 140 is still in the locked position, it can still prevent the key 160, which has just been inserted into the lock cylinder positioning post 143, from falling off the lock body 110, thereby improving the user experience.

[0103] Combination Figures 18-23 As shown, when rotating the key handle 161 causes the key body 162 to rotate, the key body 162 causes the lock cylinder 140 to rotate. During this process, the slot 1622 and the lock cylinder through slot 142 can move along the stop part 121. The stop part 121 will not obstruct the rotation of the lock cylinder 140 and the key 160. The state of the key 160 when it is turned to the unlock position is as follows. Figure 18 As shown.

[0104] During the rotational unlocking process of the lock cylinder 140, the upper abutment platform 147 pushes the sleeve 131 of the sleeve assembly 130 upward, thereby compressing the first elastic element 132 and deforming it. When the lock cylinder 140 rotates to the point where the abutment end 1451 of the rotating latch 145 disengages from the locking end face 1712 of the lock rod 170, the second elastic element 173 restores its deformation and drives the lock hook rod 171 to move upward until the locking end face 1712 abuts against the lower end face 1461 of the lock cylinder stop 146, as shown. Figures 19-20 , Figure 22-23 As shown. At this time, the locking rod 170 moves to the unlocked position, and the locking end face 1712 abuts against the lock cylinder stop 146, thereby preventing the elastic force of the second elastic member 173 from ejecting the long locking hook rod 171 from the lock body 110, while the locking rod end 1721 of the short locking hook rod 172 disengages from the lock hole 113 and is in the unlocked state, as shown. Figures 18-20 As shown. At this time, the elastic force generated by the second elastic element 173 acts upward on the lock cylinder 140, and the elastic force generated by the first elastic element 132 of the sleeve assembly 130 acts downward on the lock cylinder 140, thereby keeping the lock cylinder 140 stationary and thus stably holding the lock cylinder 140 in the unlocked position.

[0105] like Figures 18-21 As shown, in the unlocked position, the slot 1622 on the key body 162 rotates to a position where it engages with the stop post 120, that is, the stop post 120 is engaged in a slot 1622 (see...). Figure 19 , Figure 21As shown in the figure, this prevents the key body 162 from sliding off along the axial direction of the lock cylinder 140. Even if the key 160 is subjected to an outward pulling force, the protrusion 1621 on it can abut against the stop post 120 to prevent the key 160 from being pulled out. This ensures that the key 160 is always kept on the lock body 110 in the unlocked state, effectively preventing the key 160 from falling off accidentally and further improving the user experience.

[0106] In other words, after the key 160 is inserted into the lock cylinder 140 in this application, regardless of whether the lock cylinder 140 is in the locked state or has been rotated to the unlocked state, the key 160 can be kept on the lock body 110, effectively preventing the key 160 from falling off accidentally, thereby greatly improving the user experience.

[0107] Recombined Figure 18-20 As shown, when relocking is required, the locking lever 170 is pushed downwards to move it downwards. During this process, the lower end of the locking hook rod 171 presses against the second elastic element 173 again, causing it to deform. Simultaneously, the pushing surface 1713 on the locking hook rod 171 pushes against the lock cylinder stop 146, driving the lock cylinder 140 to rotate towards the locked position. During the rotation of the lock cylinder 140, the elastic force generated by the recovery deformation of the first elastic element 132 of the sleeve assembly 130 pushes the abutment platform 147, further pushing the lock cylinder 140 to rotate and reset towards the locked position, thereby enabling the lock cylinder 140 to be rotated to the locked position quickly and effortlessly. During the rotation of the lock cylinder 140, the lock cylinder through groove 142 on it and the slot 1622 on the key 160 also move along the stop part 121, and the stop part 121 does not obstruct the rotation of the lock cylinder 140 and the key 160.

[0108] like Figures 16-17 As shown, when the lock cylinder 140 and key 160 are rotated to the locked position again, the second elastic element 173 is compressed again. At this time, the abutting end 1451 of the rotating locking part 145 on the lock cylinder 140 abuts against the locking end face 1712, and the locking rod 170 is abutted by the lock cylinder 140 and is in the locked position. At the same time, the elastic force generated by the second elastic element 173 acts upward on the lock cylinder 140, and the elastic force generated by the first elastic element 132 of the sleeve assembly 130 acts downward on the lock cylinder 140, thereby stably holding the lock cylinder 140 in the locked position. The locking rod end 1721 of the lock hook short rod 172 is inserted into the key hole 113 again and is in the locked state, as shown. Figure 12-15 As shown.

[0109] Recombined Figure 1 , Figure 12 As shown, when the padlock 100 is locked again, the key 160 is rotated to the position shown. Figure 12In the state shown, the slot 1622 rotates to disengage from the stop 121, and the protrusion 1621 corresponds to the position of the recess 152. In this state, because the washer 148 is pressed between the key body 162 and the lock cylinder positioning post 143, the key body 162 is not easy to slide outward, thus preventing the key 160 from falling off the lock body 110. When pulling out the key 160, a relatively large pulling force is required to pull the key 160 outward so that the key body 162 slides along the hollow channel 151 and the protrusion 1621 slides along the recess 152, thus pulling out the key 160. Of course, for the embodiment without the washer 148, a relatively small force is required to pull the key 160 outward.

[0110] Based on the above description, the hardware padlock 100 of this utility model has the following technical effects:

[0111] 1. A stop post 120 is fixed inside the lock body 110, extending into the main body cavity 111. Simultaneously, at least two protrusions 1621 are provided on the outer surface of the key 160, arranged axially. Adjacent protrusions 1621 form a groove 1622, which can rotatably engage with the stop post 120. Thus, during the process of the key 160 being inserted into the lock cylinder 140 and causing the lock cylinder 140 to rotate, the groove 1622 moves along the stop post 120 without affecting the key 160. The lock cylinder 140 is rotated. When the lock cylinder 140 is rotated to the unlock position, the slot 1622 is engaged with the stop post 120, thereby restricting the key 160 from moving along the axial direction of the lock cylinder 140. At this time, even if the key 160 is subjected to an outward pulling force, its protrusion 1621 can abut against the stop post 120 to prevent the key 160 from being pulled out. This can prevent the key 160 from accidentally falling off the lock body 110, and keep the key 160 on the lock body 110 in the unlocked state, thus improving the user experience.

[0112] Second, the traditional encryption side structure is eliminated on the outer surface of the key 160. Instead, a protrusion 1621 is set on its outer surface. In this way, when the key 160 is inserted, if the key 160 is not correct, the protrusion 1621 on the key 160 will be blocked and it will not be able to be inserted into the lock cylinder 140. Or, after being inserted into the lock cylinder 140, it will not be able to rotate to unlock due to the interference between the protrusion 1621 and the blocking post 120. This achieves the encryption effect of the key 160. At the same time, the internal structure of the key 160 and the lock body 110 is simplified, the number of parts is reduced, and the production process is simplified, the production cost is reduced, which is more conducive to commercial promotion and application.

[0113] The other structures of the hardware padlock 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.

[0114] 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 hardware padlock, comprising a lock body having a main cavity and a lock cylinder installed within the main cavity, characterized in that, Also includes: A stop post is fixed to the lock body and extends into the cavity of the main body; A key, wherein at least two protrusions are provided on the outer surface of the key and arranged along its axial direction, and a groove is formed between adjacent protrusions; When the key is inserted into the lock cylinder, a slot engages with the stop post to allow the key to rotate the lock cylinder. When the lock cylinder rotates to the unlock position, the slot engages with the stop post to restrict the key from moving axially along the lock cylinder.

2. The hardware padlock as described in claim 1, characterized in that, The key has protrusions on both opposite sides of the plane passing through its axis, and each side of the key has at least two protrusions.

3. The hardware padlock as described in claim 1, characterized in that, The lock cylinder is rotatably installed in the main body cavity, and a lock cylinder through groove extending radially thereon is provided on the lock cylinder, and the lock cylinder through groove is rotatably engaged with the stop post; When the key is inserted into the lock cylinder, one of the slots is connected to the lock cylinder through slot. The key is allowed to rotate the lock cylinder by the rotational engagement of the slot, the lock cylinder through slot and the stop post, so that the lock cylinder can switch between the locked position and the unlocked position. When the lock cylinder is rotated to the unlocked position, the stop post is engaged in the slot to restrict the key from moving along the axial direction of the lock cylinder.

4. The hardware padlock as described in claim 3, characterized in that, The lock cylinder also has an inner cavity that extends along its axial direction and passes through one end. The lock cylinder through groove is opened on the side wall of the lock cylinder and connects to the inner cavity of the lock cylinder. The key can be detachably inserted into the inner cavity of the lock cylinder and can be positioned relative to the lock cylinder.

5. The hardware padlock as described in claim 4, characterized in that, The inner end face of the lock cylinder cavity is recessed with a positioning groove corresponding to the protrusion. When the key is inserted into the lock cylinder cavity, the protrusion engages in the positioning groove to achieve positioning; or / and the inner end face of the lock cylinder cavity is protruded with a lock cylinder positioning post, and the end face of the key is provided with an end face concave hole corresponding to the lock cylinder positioning post. When the key is inserted into the lock cylinder cavity, the end face concave hole is inserted into the outside of the lock cylinder positioning post.

6. The hardware padlock as described in claim 5, characterized in that, At least one washer is fitted on the lock cylinder positioning post. The washer has an elastic structure. When the end face concave hole is inserted into the lock cylinder positioning post, the washer is pressed between the inner wall of the end face concave hole and the lock cylinder positioning post.

7. The hardware padlock as described in claim 6, characterized in that, The lock cylinder positioning post is recessed with a groove extending radially therein and an exhaust groove extending axially therein. The exhaust groove is connected to the groove, and the washer is engaged in the groove.

8. The hardware padlock as described in any one of claims 1-7, characterized in that, It also includes a lock cylinder sub-component, which is fixed in the cavity of the main body and docks with the lock cylinder. The lock cylinder sub-component has a hollow channel and a sub-component groove. The hollow channel extends along the axial direction of the lock cylinder sub-component and passes through both ends of it. The sub-component groove extends along the radial direction of the lock cylinder sub-component and connects to the hollow channel. The protrusion slides into the groove of the sub-part, and the key moves in and out of the lock cylinder by sliding the protrusion along the groove of the sub-part and sliding the key along the hollow channel.

9. The hardware padlock as described in any one of claims 1-7, characterized in that, It also includes a locking rod that is movably mounted on the lock body; One end of the lock cylinder is provided with a lock cylinder stop and a rotating locking part. The lock cylinder stop and the rotating locking part are spaced apart and have a height difference. By rotating the lock cylinder, the rotating locking part and the lock cylinder stop can respectively abut against the lock rod, thereby keeping the lock rod in the locked position and the unlocked position.

10. The hardware padlock as described in claim 9, characterized in that, The locking rod includes a long locking hook and a short locking hook. The long locking hook is movably mounted on the lock body, and the end of the long locking hook is provided with a locking end face. The locking end face abuts against the rotating locking part and the lock cylinder stop respectively, so as to realize the switching of the locking rod between the locking position and the unlocking position, thereby allowing the short locking hook to be inserted into or disengaged from the lock hole on the lock body.

11. The hardware padlock as described in any one of claims 1-7, characterized in that, It also includes a sleeve assembly, which includes at least a sleeve and a first elastic element installed inside the sleeve, the sleeve being movably installed on the lock body and extending into the main body cavity; The lock cylinder has an abutment platform on its side wall. The abutment platform is offset from the axis of the lock cylinder and corresponds to the sleeve. The elastic force of the first elastic element ensures that the sleeve always abuts against the abutment platform.

12. The hardware padlock as described in any one of claims 1-7, characterized in that, One end face of the lock body is recessed with a main body groove, and a stop post through hole is opened in the main body groove to communicate with the main body cavity. The stop post is fixed in the stop post through hole. The hardware padlock also includes a main cover plate, the shape of which corresponds to the shape of the main groove, and a matching positioning post and positioning hole are provided between the main cover plate and the main groove, so that the main cover plate can be detachably connected through the positioning post and the positioning hole.

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