Waterproof sealing padlock
By designing a sealing cover assembly and seals on the padlock, the problem of easy intrusion into the keyhole is solved, achieving waterproof and dustproof effects and ensuring the padlock's normal use for a long time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional padlock keyholes are susceptible to water and dust intrusion, leading to chemical corrosion and jamming, which affects their lifespan.
A waterproof and sealed padlock was designed, which uses a sealing cover assembly to cover the outside of the lock cylinder. It uses seals and elastic bands to prevent water and dust from entering the keyhole and can be easily removed for use when needed.
It effectively prevents corrosion and clogging of the lock cylinder, ensuring the padlock can be used normally for a long time and improving its waterproof and dustproof performance.
Smart Images

Figure CN223984358U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lockset, especially relates to a waterproof sealing padlock. BACKGROUND
[0002] Padlock is the oldest and largest family in lockset, and other locksets are derived from padlock. The traditional padlock comprises a lock body provided with a reverse J-shaped lock beam, so that the padlock is directly connected with the lock body through the lock beam to form a closed lockset. An inside of the lock body is movably provided with a clutch member capable of fixing the lock beam. An output end of a mechanical lock cylinder is connected with the clutch member to realize unlocking and locking.
[0003] The keyhole of the lock cylinder is exposed to the lower end surface or the side surface of the lock body. Water or dust can enter the lock cylinder or the lock body through the gap between the keyhole and the lock body. After a long time, chemical corrosion and particle blockage of the keyhole can occur. SUMMARY
[0004] The utility model discloses at least one of the technical problems in the prior art. Therefore, the utility model provides a waterproof sealing padlock, which can protect the lock cylinder to achieve waterproof and dustproof effect and ensure long-term normal use of the padlock.
[0005] According to the waterproof sealing padlock, the sealing cover assembly is movably arranged on the lock body and can cover the outside of the lock cylinder to shield the keyhole.
[0006] According to the waterproof sealing padlock, at least the following beneficial effects are achieved:
[0007] When the padlock is not unlocked, the sealing cover assembly covers the outside of the lock cylinder to shield the keyhole, so that water or dust cannot enter the lock cylinder through the keyhole. Chemical corrosion and particle blockage of the keyhole are avoided. When the padlock is unlocked, the sealing cover assembly is removed to expose the keyhole, which is convenient to use. The lock cylinder is protected to achieve waterproof and dustproof effect, and the padlock can be used for a long time.
[0008] In some embodiments of the utility model, the lock body is formed with an annular sleeve on the outer periphery of one end of the lock cylinder near the keyhole, the sealing cover assembly comprises a cover body which is detachably sleeved on the outside of the annular sleeve, and the inside of the cover body is provided with a sealing element capable of sealing the port of the annular sleeve.
[0009] In some embodiments of the utility model, the outer peripheral wall of the lower part of the lock body is provided with a second annular groove with an inward recess, an annular elastic band is arranged in the second annular groove, the lower end of the cover body is provided with a connecting column extending downward, and one side of the annular elastic band is formed with a connecting band connected with the connecting column.
[0010] In some embodiments of the utility model, the cover body has a cavity with an opening upward, the inner peripheral wall of the cavity is provided with a first annular groove in communication with the bottom wall, the sealing element is a silica gel disc embedded in the first annular groove, and when the cover body is installed on the annular sleeve, the silica gel disc is clamped between the bottom wall of the cavity and the lower end surface of the annular sleeve.
[0011] In some embodiments of the utility model, the upper end surface of the silica gel disc is provided with a circular ring protrusion matched with the lower edge of the annular sleeve, and the wall thickness size of the circular ring protrusion is greater than or equal to the wall thickness size of the annular sleeve.
[0012] In some embodiments of the utility model, the side wall of the annular sleeve is distributed with at least two rotating clamping grooves around the central axis, and the inner peripheral wall of the cover body is provided with a positioning convex part corresponding to the rotating clamping grooves.
[0013] In some embodiments of the utility model, the rotating clamping groove comprises an access groove extending upward from the lower end of the annular sleeve and an arc-shaped groove in communication with the upper end of the access groove and extending around the outer peripheral wall of the annular sleeve, and the positioning convex part is a positioning pin penetrating the side wall of the cover body.
[0014] In some embodiments of the utility model, the lock body is provided with a vertical channel for lifting sliding of the two ends of the U-shaped section, and the outer peripheral wall of the two ends of the U-shaped section is sleeved with a first sealing ring tightly fitted with the inner peripheral wall of the vertical channel.
[0015] In some embodiments of this utility model, the lock body is provided with a horizontal channel, the two ends of the horizontal channel are respectively connected to two vertical channels, the middle part of the lock body is provided with a vertically downward through mounting channel, the upper end of the mounting channel is connected to the middle part of the horizontal channel, the lock cylinder is fixedly installed in the mounting channel, the output end of the lock cylinder is connected to a rotating lever, the upper outer peripheral wall of the rotating lever is provided with a relief groove corresponding to the two locking grooves, the clutch is a ball that can enter and exit the relief groove, and the outer peripheral wall of the rotating lever is fitted with a second sealing ring that fits tightly with the inner peripheral wall of the mounting channel.
[0016] In some embodiments of this utility model, a threaded channel is provided on one side of the lock body, which is connected to the position of the lock cylinder corresponding to the mounting channel. A set screw connected to the lock cylinder is provided in the threaded channel, and the thread surface of the set screw is covered with a waterproof adhesive layer that fits tightly with the threaded channel.
[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0019] Figure 1 This is a structural schematic diagram of one embodiment of the waterproof and sealing padlock of this utility model;
[0020] Figure 2 for Figure 1 A cross-sectional schematic diagram of the embodiment;
[0021] Figure 3 for Figure 1 A schematic diagram of the sealing cap assembly separated from the annular sleeve in the embodiment;
[0022] Figure 4 This is an exploded view of one embodiment of the sealing cap assembly.
[0023] Figure label:
[0024] Lock body 100; annular sleeve 110; second annular groove 120; vertical channel 130; horizontal channel 140; mounting channel 150; threaded channel 160; set screw 170; lock beam 200; locking groove 210; clutch 300; lock cylinder 400; keyhole 410; rotating lever 420; sealing cover assembly 500; cover 510; connecting post 511; sealing element 520; annular protrusion 521; first annular groove 530; annular elastic band 610; connecting band 620; rotating slot 710; inlet / outlet slot 711; arc groove 712; positioning protrusion 720; first sealing ring 800; second sealing ring 900. Detailed Implementation
[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0026] In the description of this utility model, the use of terms such as first, second, third, fourth, and fifth is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.
[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0029] Reference Figures 1 to 4A waterproof and sealed padlock according to an embodiment of the present invention includes: a lock body 100; a lock beam 200 movably disposed on the lock body 100, the lock beam 200 having a U-shaped segment that can form an annular shape with the lock body 100, and locking grooves 210 provided on opposite sides of the U-shaped segment; two clutches 300 slidably disposed on the lock body 100 in opposite directions to be able to enter and exit the locking grooves 210; a lock cylinder 400 disposed inside the lock body 100, the keyhole 410 of the lock cylinder 400 being exposed on the surface of the lock cylinder 400; and a sealing cover assembly 500 movably disposed on the lock body 100, capable of covering the outside of the lock cylinder 400 to cover the keyhole 410.
[0030] The waterproof and sealed padlock with the above structure uses a sealing cover assembly 500 to cover the outside of the lock cylinder 400 when not unlocking, thus blocking the keyhole 410. This prevents water or dust from entering the lock cylinder 400 through the keyhole 410, avoiding chemical corrosion and rust, as well as dust and other particles clogging the keyhole 410. When unlocking is needed, the sealing cover assembly is removed to expose the keyhole 410. After inserting the key into the keyhole 410 and turning it, the output end of the lock cylinder 400 drives the two clutches 300 to unlock and move closer to each other to disengage from the locking groove 210 of the lock beam 200. It is convenient to use and can protect the lock cylinder 400 to achieve waterproof and dustproof effects, ensuring that the padlock can be used normally for a long time.
[0031] See Figure 2 and Figure 3 In some embodiments of this utility model, the lock body 100 has an annular sleeve 110 formed on the outer periphery of the lock cylinder 400 near the keyhole 410. The sealing cover assembly 500 includes a cover 510 detachably fitted onto the outside of the annular sleeve 110. The cover 510 has a sealing element 520 inside that can seal the port of the annular sleeve 110. It is understood that when the cover 510 is fitted onto the annular sleeve 110, there is still a gap between the cover 510 and the annular sleeve 110. Water can easily seep into the cover 510 through this gap. As the amount of water accumulates, water will seep into the lock cylinder 400. The sealing element 520 can solve the problem of waterproofing.
[0032] It should be noted that the cover 510 can only be removed from the lock body 100 before unlocking can be performed. After locking, the cover 510 needs to be reinstalled on the lock body 100 to cover the keyhole 410 of the lock cylinder 400. During this process, the cover 510 is easily lost. In some embodiments of this utility model, the lower outer peripheral wall of the lock body 100 is provided with a second annular groove 120 with an inward groove. An annular elastic band 610 is provided in the second annular groove 120. A connecting post 511 extends downward from the lower end of the cover 510. A connecting band 620 connected to the connecting post 511 is formed on one side of the annular elastic band 610. Specifically, the annular elastic band 610 and the connecting band 620 are rubber bands with an integral structure. The annular elastic band 610 elastically clamps the second annular groove 120 to prevent the annular elastic band 610 from falling off the lock body 100. When the cover 510 is removed, the cover 510 is suspended below the lock body 100 by the connecting band 620 to prevent the cover 510 from being lost.
[0033] See Figure 2 and Figure 4 In some embodiments of this utility model, the cover 510 has an upward-opening cavity, and the inner peripheral wall of the cavity is provided with a first annular groove 530 communicating with its bottom wall. The sealing element 520 is a silicone disc embedded in the first annular groove 530. When the cover 510 is installed on the annular sleeve 110, the silicone disc is sandwiched between the bottom wall of the cavity and the lower end face of the annular sleeve 110. Generally, the cover 510 is made of plastic material, and the silicone disc is more flexible than the cover 510, making it easier to elastically deform to abut against the lower end face of the annular sleeve 110 and seal the lower port of the annular sleeve 110. During manufacturing, the cover 510 and the silicone disc are machined separately, and then the silicone disc is inserted into the first annular groove 530.
[0034] In some embodiments of this utility model, in order to improve the sealing performance and prevent the silicone disc from being unable to contact the entire lower end face of the annular sleeve 110 when it is squeezed and deformed, the upper end face of the silicone disc is provided with an annular protrusion 521 that matches the lower edge of the annular sleeve 110, and the wall thickness of the annular protrusion 521 is greater than or equal to the wall thickness of the annular sleeve 110.
[0035] See Figure 3 and Figure 4In some embodiments of this utility model, the sidewall of the annular sleeve 110 is provided with at least two rotating slots 710 around its central axis, and the inner peripheral wall of the cover 510 is provided with positioning protrusions 720 corresponding to the rotating slots 710. When the cover 510 is installed on the annular sleeve 110, the user grasps the cover 510 and inserts it with the lower end of the annular sleeve 110 aligned with the cavity. The silicone disc contacts the lower end face of the annular sleeve 110 and generates vertical pressure. At the same time, the positioning protrusions 720 enter the corresponding rotating slots 710. After rotating a certain angle, the cover 510 cannot be pulled out directly downwards.
[0036] See Figure 3 and Figure 4 In some embodiments of this utility model, the rotating slot 710 includes an inlet / outlet slot 711 extending upward from the lower end of the annular sleeve 110 and an arcuate slot 712 connected to the upper end of the inlet / outlet slot 711 and extending around the outer peripheral wall of the annular sleeve 110. The positioning protrusion 720 is a positioning pin that passes through the side wall of the cover 510. Specifically, in this embodiment, two positioning pins are provided, and two corresponding rotating slots 710 are provided. When the cover 510 moves upward relative to the lock body 100 to insert the annular sleeve 110 into the cavity, the positioning pin moves upward along the inlet / outlet slot 711 to the upper end of the inlet / outlet slot 711. Then, the cover 510 rotates a certain angle relative to the annular sleeve 110, and the positioning pin leaves the inlet / outlet slot 711 and moves to one end of the arcuate slot 712. When it is necessary to remove the cover 510, the cover 510 rotates in the opposite direction to the annular sleeve 110 by the same angle. After the positioning pin moves to the upper end of the inlet / outlet groove 711, it can move downward along the inlet / outlet groove 711, thereby disengaging the cover 510 from the annular sleeve 110.
[0037] See Figure 2 In some embodiments of this utility model, the lock body 100 is provided with a vertical channel 130 for the two ends of the U-shaped segment to slide up and down, and the outer peripheral walls of the two ends of the U-shaped segment are fitted with a first sealing ring 800 that fits tightly with the inner peripheral wall of the vertical channel 130. It can be understood that the first sealing ring 800 eliminates the gap between the lock beam 200 and the vertical channel 130, improves the sealing performance, and prevents water or dust from entering the vertical channel 130 from the gap, causing the lock beam 200 to jam when rotating.
[0038] See Figure 2In some embodiments of this utility model, the lock body 100 is provided with a horizontal channel 140, the two ends of the horizontal channel 140 are respectively connected to the two vertical channels 130, the middle part of the lock body 100 is provided with a vertically downward through mounting channel 150, the upper end of the mounting channel 150 is connected to the middle part of the horizontal channel 140, the lock cylinder 400 is fixedly installed in the mounting channel 150, the output end of the lock cylinder 400 is connected to a rotating lever 420, the upper outer peripheral wall of the rotating lever 420 is provided with a relief groove corresponding to the two locking grooves 210, the clutch 300 is a ball that can enter and exit the relief groove, and the outer peripheral wall of the rotating lever 420 is fitted with a second sealing ring 900 that is tightly fitted with the inner peripheral wall of the mounting channel 150. It should be noted that even if the first sealing ring 800 fails, and water enters the installation channel 150 through the vertical channel 130 and the horizontal channel 140 in sequence, the second sealing ring 900 can still prevent water from further seeping into the lock cylinder 400. Moreover, the second sealing ring 900 also helps the rotating lever 420 to rotate stably around the axial direction of the installation channel 150. When the clearance groove of the rotating lever 420 is facing the ball, the lock beam 200 is pulled upward, and the ball moves toward the clearance groove.
[0039] See Figure 2 In some embodiments of this utility model, a threaded channel 160 is provided on one side of the lock body 100, communicating with the position of the mounting channel 150 corresponding to the lock cylinder 400. A set screw 170 connected to the lock cylinder 400 is provided within the threaded channel 160, and the thread surface of the set screw 170 is covered with a waterproof adhesive layer that fits tightly with the threaded channel 160. It is understood that the waterproof adhesive layer helps eliminate the gap between the thread of the set screw 170 and the threaded channel 160, further improving the waterproof effect. In this embodiment, the outer port of the threaded channel 160 is also closed by the aforementioned annular elastic band 610.
[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A waterproof sealed padlock characterized by, The utility model relates to a waterproof seal padlock, which comprises: a lock body (100); a lock beam (200) movably arranged in the lock body (100), the lock beam (200) having a U-shaped section capable of being enclosed with the lock body (100) into a ring shape, and opposite sides of the U-shaped section being provided with locking grooves (210); two clutch members (300) oppositely and slidably arranged in the lock body (100) to be capable of entering and exiting the locking grooves (210); a lock cylinder (400) arranged inside the lock body (100), a keyhole (410) of the lock cylinder (400) being exposed on a surface of the lock cylinder (400); a sealing cover assembly (500) movably arranged in the lock body (100) and capable of being arranged on an outer portion of the lock cylinder (400) to shield the keyhole (410).
2. The waterproof seal padlock according to claim 1, wherein: an annular sleeve (110) is formed on an outer periphery of the lock body (100) at an end of the lock cylinder (400) close to the keyhole (410), the sealing cover assembly (500) comprising a cover body (510) detachably arranged on an outer portion of the annular sleeve (110), and an inner portion of the cover body (510) being provided with a sealing member (520) capable of sealing a port of the annular sleeve (110).
3. The waterproof seal padlock according to claim 2, wherein: an outer peripheral wall of a lower portion of the lock body (100) is provided with a second annular groove (120) having a concave groove inwardly, and the second annular groove (120) is provided with an annular elastic band (610) therein, a lower end of the cover body (510) being provided with a connecting column (511) extending downwardly, and one side of the annular elastic band (610) being formed with a connecting band (620) connected with the connecting column (511).
4. The waterproof seal padlock according to claim 2, wherein: the cover body (510) has a cavity with an opening upwardly, an inner peripheral wall of the cavity being provided with a first annular groove (530) communicated with a bottom wall thereof, and the sealing member (520) being a silica gel disc embedded in the first annular groove (530), when the cover body (510) is arranged on the annular sleeve (110), the silica gel disc is clamped between the bottom wall of the cavity and a lower end surface of the annular sleeve (110).
5. The waterproof seal padlock according to claim 4, wherein: an upper end surface of the silica gel disc is provided with a circular ring protrusion (521) matched with a lower edge of the annular sleeve (110), and a wall thickness of the circular ring protrusion (521) is greater than or equal to a wall thickness of the annular sleeve (110).
6. The waterproof seal padlock according to claim 2, wherein: a side wall of the annular sleeve (110) is provided with at least two rotation clamping grooves (710) distributed around a central axis thereof, and an inner peripheral wall of the cover body (510) is provided with positioning protrusions (720) corresponding to the rotation clamping grooves (710) one by one.
7. The waterproof seal padlock according to claim 6, wherein: The rotating clamping slot (710) comprises an access slot (711) extending upward from the lower end of the annular sleeve (110) and an arc-shaped slot (712) extending around the outer peripheral wall of the annular sleeve (110) and communicating with the upper end of the access slot (711), and the positioning protrusion (720) is a positioning pin penetrating through the side wall of the cover (510).
8. The waterproof sealed padlock of claim 1, wherein: The lock body (100) is provided with vertical channels (130) for the sliding of the two ends of the U-shaped section, and the outer peripheral wall of the two ends of the U-shaped section is provided with a first sealing ring (800) tightly fitted with the inner peripheral wall of the vertical channel (130).
9. The waterproof sealed padlock of claim 8, wherein: The lock body (100) is provided with a horizontal channel (140) in the middle, and the two ends of the horizontal channel (140) are respectively connected with two vertical channels (130), the middle part of the lock body (100) is provided with a vertical downward installation channel (150), the upper end of the installation channel (150) is connected with the middle part of the horizontal channel (140), the lock cylinder (400) is fixedly installed in the installation channel (150), the output end of the lock cylinder (400) is connected with a rotating lever (420), the outer peripheral wall of the upper part of the rotating lever (420) is provided with an avoidance groove corresponding to the two locking grooves (210), the clutch (300) is a ball that can enter and exit the avoidance groove, and the outer peripheral wall of the rotating lever (420) is provided with a second sealing ring (900) tightly fitted with the inner peripheral wall of the installation channel (150).
10. The waterproof sealed padlock of claim 9, wherein: One side of the lock body (100) is provided with a threaded channel (160) corresponding to the position of the lock cylinder (400) and communicating with the installation channel (150), the threaded channel (160) is provided with a tightening screw (170) connected with the lock cylinder (400), and the thread surface of the tightening screw (170) is covered with a waterproof adhesive layer tightly fitted with the threaded channel (160).