Side-hung door lock

Abstract

The utility model relates to a side-hung door lock which comprises an inner handle and an outer handle which are correspondingly connected with each other, a handle mounting mechanism for connecting the inner handle with the outer handle, and a lock rod structure for linking the inner handle and the outer handle to rotate synchronously, a counter locking mechanism is arranged at the inner handle, and a state feedback mechanism linked with the counter locking mechanism is arranged at the outer handle. The state feedback mechanism comprises an outer transmission part rotationally arranged in the outer handle and a state window formed in the surface of the end, away from the inner handle, of the outer handle, one end of the outer transmission part rotates synchronously with the counter locking mechanism, the other end of the outer transmission part is provided with at least one identification feature, and the state window is arranged on the rotating path of the identification feature; a user can directly observe the locking or unlocking state of the lock through the state window, the problem that the state of a traditional lock needs to be verified through trial pushing or a key is solved, and the visual perception and use safety of the user on the lock state are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of locks, and in particular to a swing door lock. Background Technology

[0002] As a core security component of a door, the stability and durability of locks directly affect the user experience. In scenarios such as metal-framed glass doors and wooden doors, locks typically require a buffer pad to connect with the door. This buffer pad not only cushions the rigid contact between the lock body and the door, reducing wear, but also helps to secure the lock body and handle, preventing loosening or displacement due to frequent operation.

[0003] In the prior art, for example, Chinese utility model patent CN217735110U discloses a lock structure for a metal-framed glass door, which uses inner and outer rubber pads to isolate the contact surface between the lock body and the glass door, and provides a certain degree of protection through the soft material of the rubber pads. However, the rubber pad installation structure in this patent still has the following significant defects:

[0004] 1. In the existing structure, the rubber pad is only initially fixed by "the spacer falling into the lock body mounting groove" and "the pad adhering to the glass surface". After long-term use, the lateral stress generated by the frequent rotation of the lock handle can easily cause the rubber pad to slide or fall off along the lock body surface, which cannot guarantee the stable connection between the lock body and the door.

[0005] 2. In the existing structure, the bonding force between the rubber pad and the glass door relies solely on the friction of the pad. After long-term use, the handle is prone to sagging due to gravity or rotational inertia, affecting the closing accuracy and aesthetics of the lock.

[0006] 3. The existing handle is an integrated door handle. When installing it with the panel, the handle needs to be rotated to a certain angle to expose the screw holes before the screws between the handle and the panel can be tightened with a screwdriver. The connection method is complicated, and the screwdriver can easily scratch the panel surface during installation.

[0007] 4. Existing door locks often have a deadbolt mechanism, but users cannot intuitively determine the current locking status of the lock. Summary of the Invention

[0008] The technical problem to be solved by this utility model is to provide a swing door lock that addresses the shortcomings of the prior art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a swing door lock, comprising an inner handle and an outer handle connected to each other, a handle mounting mechanism connecting the inner and outer handles, and a locking rod structure that links the inner and outer handles to rotate synchronously. The inner handle is provided with a deadbolt mechanism, and the outer handle is provided with a status feedback mechanism that is linked to the deadbolt mechanism. The status feedback mechanism includes an external transmission component that rotates inside the outer handle and a status window opened on the surface of the outer handle at the end away from the inner handle. One end of the external transmission component rotates synchronously with the deadbolt mechanism, and the other end is provided with at least one identification feature. The status window is located on the rotation path of the identification feature.

[0010] Using the above technical solution, the marking features have a visually distinct appearance compared to the adjacent parts of the external transmission component surface, such as color, graphics, numbers, letters, etc. The action status of the inner handle's deadbolt mechanism is transmitted to the status window on the outer handle surface through the external transmission component. One end of the external transmission component is linked to the deadbolt mechanism, and the marking feature at the other end rotates with the external transmission component. The status window is located on the outer handle surface and on the rotation path of the marking feature. When the deadbolt mechanism performs locking or unlocking actions, the external transmission component drives the marking feature to rotate, so that different marking features are displayed sequentially through the status window. Through the synchronous rotation of the external transmission component and the deadbolt mechanism and the visual display of the marking features in the status window, users can directly observe the locking or unlocking status of the lock through the status window, solving the inconvenience of traditional locks requiring trial pushing or key verification of the status, and significantly improving the user's intuitive perception of the lock status and the security of use.

[0011] The aforementioned swing door lock can be further configured as follows: the external transmission component is a lock cylinder, the end of the lock cylinder facing the status window is provided with a status display panel, the identification feature is set on the status display panel, the lock rod structure includes a square shaft connecting the inner handle and the outer handle and a transmission shaft passing through the square shaft, one end of the transmission shaft is connected to the deadbolt mechanism, and the other end is connected to the lock cylinder.

[0012] Using the above technical solution, the lock cylinder acts as an external transmission component, transmitting the action status of the inner handle's deadbolt mechanism to the status window on the outer handle surface. A status display panel is set at the end of the lock cylinder facing the status window, and the identification features are directly set on the status display panel. The square shaft of the lock rod structure connects the inner and outer handles to achieve synchronous rotation. The transmission shaft passes through the inside of the square shaft, with one end connected to the deadbolt mechanism of the inner handle and the other end connected to the lock cylinder, thereby establishing a linkage relationship between the deadbolt mechanism and the lock cylinder. The status display panel is displayed through the linkage of the transmission shaft between the lock cylinder and the deadbolt mechanism and the rotation of the identification features.

[0013] The aforementioned swing door lock can be further configured as follows: the outer handle has an outer cavity, the surface of the outer handle is provided with an outer magnetic cover plate covering the outer cavity, the status display panel is provided on the outer magnetic cover plate, the outer handle is provided with a lock cylinder mounting seat corresponding to the lock cylinder, one end of the lock cylinder is provided with a snap ring, one end of the lock cylinder abuts against the lock cylinder mounting seat through the status display panel, and the other end abuts against the snap ring for limitation, thereby rotatably setting the lock cylinder in the lock cylinder mounting seat and restricting its freedom in the front and rear directions.

[0014] The above technical solution provides installation space for the internal components of the outer handle through the outer cavity. An outer magnetic cover conceals the outer cavity to maintain a clean appearance and facilitate disassembly. The status display panel is directly mounted on the outer magnetic cover, corresponding to the end of the lock cylinder facing the status window, ensuring clear display of identification features through the status window. The lock cylinder mounting base provides the mounting foundation for the lock cylinder. One end of the lock cylinder is restrained from moving towards the status window by abutting against the lock cylinder mounting base via the status display panel, while the other end is restrained from moving away from the status window by abutting against the lock cylinder mounting base via a snap-fit ​​ring. This allows the lock cylinder to be mounted... The rotation is restricted within the lock cylinder mounting base, retaining only the degree of freedom of rotation around its own axis, preventing the lock cylinder from moving back and forth. The magnetic design of the outer magnetic cover simplifies the opening and closing operation of the outer cavity. The lock cylinder is limited by the bidirectional abutment between the status display panel and the locking ring, ensuring that the lock cylinder only maintains its rotational function without forward or backward displacement during long-term use. This avoids the status display panel shifting or the status window display misalignment caused by the lock cylinder moving, thus stably and reliably displaying the lock's locked or unlocked status through the status window, improving the accuracy of the user's perception of the lock status and the stability of the user experience.

[0015] The aforementioned swing door lock can be further configured as follows: the outer handle has an outer locking groove and an outer latching groove at the corresponding locking ring; the outer side of the locking ring has an outer latching buckle that engages with the outer latching groove and an outer locking block that engages with the outer locking groove; the end of the lock cylinder away from the status display panel has a lock cylinder ring; the inner ring of the locking ring has several inner locking blocks that engage with and lock the lock cylinder ring; and the end of the lock cylinder facing the outer magnetic cover has an unlocking port for inserting a key to unlock.

[0016] By employing the above technical solution, the locking ring is fixed to the outer handle through the cooperation of the outer locking groove, outer latching groove, and outer locking block and outer latch on the locking ring. The outer handle has an outer locking groove and outer latching groove corresponding to the locking ring. The outer locking block and outer latch are set on the outer side of the locking ring. Both of these restrict the rotation and displacement of the locking ring relative to the outer handle. At the same time, the inner locking block of the inner ring of the locking ring cooperates with the lock cylinder ring at the end of the lock cylinder away from the status display panel, locking the locking ring and the lock cylinder into one unit. An unlocking port is opened at the end of the lock cylinder facing the outer magnetic cover, allowing the key to be inserted to drive the lock cylinder to rotate and unlock. The locking of the inner locking block and the lock cylinder ring makes the locking ring and the lock cylinder move synchronously, thereby stably restricting the front and rear degrees of freedom of the lock cylinder. The setting of the unlocking port retains the traditional key unlocking function. The user can drive the lock cylinder to rotate by inserting the key into the unlocking port, thereby triggering the deadbolt mechanism to unlock. This balances the security of the lock and the convenience of operation. At the same time, the multi-layer locking structure improves the reliability of the lock cylinder installation and avoids loosening of parts or misalignment of status display due to long-term use.

[0017] The aforementioned swing door lock can be further configured as follows: the deadbolt mechanism includes a deadbolt block rotatably disposed inside the inner handle, a locking rod disposed on one side of the deadbolt block, and a deadbolt drive assembly that drives the deadbolt block to rotate for locking or unlocking actions. One end of the deadbolt drive assembly extends out of the inner handle and has a control end, while the other end is linked to the deadbolt cam of the deadbolt block. The deadbolt cam has a locking part, a switching part, and an unlocking part arranged sequentially along the rotation direction of the deadbolt block. The switching part is obliquely arranged, with the higher part connected to the locking part and the lower part connected to the unlocking part. One end of the locking rod passes through the inner handle, and the other end has a driven block. A return spring is sleeved on the outside of the locking rod. The return spring drives the driven block to move towards the deadbolt cam. When the deadbolt block is in the locked state, one end of the locking rod abuts against the locking part, and the other end extends out of the outside of the inner handle. When the deadbolt block is in the unlocked state, one end of the locking rod abuts against the unlocking part, and the other end retracts into the inner handle.

[0018] Using the above technical solution, the switching between locked and unlocked states is achieved through the coordinated action of the deadbolt drive assembly, the deadbolt block, and the locking lever. The deadbolt block is rotatably mounted inside the inner handle, and its deadbolt cam is sequentially configured with a locking part, a diagonal switching part, and an unlocking part along the rotation direction. One end of the deadbolt drive assembly extends out of the inner handle to form a control end, and the other end is linked with the deadbolt cam to drive the deadbolt block to rotate. One end of the locking lever passes through the inner handle, and the other end has a driven block and a return spring. When the user operates the control end to drive the deadbolt block to rotate, the deadbolt cam rotates synchronously. The driven block, under the action of the return spring, is always in contact with the cam surface. The driven block abuts against the locking part, pushing the lock. The lever extends beyond the inner handle to restrict its rotation, thus achieving deadbolt locking. If the deadbolt block rotates to the unlocked state, the driven block abuts against the unlocking part, and the locking lever retracts into the inner handle under the pull of the return spring, allowing the inner handle to rotate freely, thus unlocking. The oblique switching part ensures a smooth transition of the driven block between different parts of the cam, avoiding jamming. The return spring continuously pushes the driven block against the cam, ensuring the stability of the locking lever's position in the deadbolt / unlocked state. The oblique switching part design ensures smooth operation; the user only needs to drive the deadbolt block to rotate via the control terminal to reliably switch the deadbolt state, significantly improving the stability of the lock's deadbolt function and the convenience of operation.

[0019] The aforementioned swing door lock can be further configured as follows: the locking part is provided with an arc-shaped groove adapted to the end of the driven block; the end of the anti-lock block facing the outer handle passes through the inner handle and is connected to a limiting clamp, and the degree of freedom of the anti-lock block in the front and rear directions is limited by the limiting clamp; a rotation limiting part is provided between the anti-lock cam and the inner handle, and the rotation angle of the anti-lock block is limited by the rotation limiting part.

[0020] By adopting the above technical solution, the locking part is designed with an arc-shaped groove that matches the end of the driven block, so that the locking state provides tactile feedback while maintaining the locking state and preventing loosening. The limiting clamp restricts the back-and-forth movement of the deadbolt block, and the rotation limiting part restricts the rotation angle of the deadbolt block, ensuring that the deadbolt block rotates only within the effective range. This avoids the inability to accurately switch to the locked or unlocked state due to excessive rotation, which significantly improves the stability of the deadbolt mechanism and the accuracy of state switching, ensuring the reliability of the lock's deadbolt function.

[0021] The aforementioned swing door lock can be further configured as follows: the swing door lock also includes a lock body disposed between the inner and outer handles; the handle mounting mechanism includes lock covers respectively connected to the inner and outer handles, and mounting studs and mounting screws correspondingly disposed on the two lock covers; the lock body has clearance holes for the mounting screws or mounting studs to pass through, and square shaft holes for the lock tongue on the lock body to retract or extend into the lock body after passing through; the mounting screw passes through one of the lock covers and is threadedly connected to the mounting stud on the other lock cover, thereby locking the lock body between the two lock covers.

[0022] By adopting the above technical solution, the inner and outer handles are stably assembled with the lock body through the coordinated connection of the lock cover, mounting studs, mounting screws and the lock body. The lock body is set between the inner and outer handles, and the two lock covers are connected to the inner and outer handles respectively. The lock covers are equipped with corresponding mounting studs and mounting screws. The lock body has clearance holes and square shaft holes. During installation, the mounting screw passes through the clearance hole of one lock cover and is threadedly connected to the mounting stud of the other lock cover. The locking force of the threads clamps and locks the lock body between the two lock covers. At the same time, the square shaft passes through the square shaft hole and links with the bolt on the lock body, realizing the retraction or extension of the bolt when the inner and outer handles are rotated. The lock body is directly fixed by the threaded connection of the mounting screws and mounting studs, which simplifies the installation steps and significantly improves the convenience of lock installation and the stability of use.

[0023] The aforementioned swing door lock can be further configured such that: a detachable connection mechanism is provided between the inner and outer handles and the corresponding lock cover; the detachable connection mechanism includes a reset rotating component disposed within the lock cover and a linkage component for connecting the inner or outer handle; a reset torsion spring is provided between one end of the reset rotating component and the lock cover, and a reset mounting seat is provided after the other end extends out of the lock cover; one end of the linkage component is connected to the inner or outer handle by a first screw, and the other end is connected to the reset mounting seat by a second screw; the reset torsion spring has two reset feet extending outward; the inner wall of the lock cover has mounting studs or mounting screws that abut against the reset feet; and both the linkage component and the reset rotating component have linkage holes at their centers for a square shaft to pass through.

[0024] The above technical solution achieves the detachable and reset functions of the inner / outer handle and the lock cover through the coordinated connection of the reset rotating component, the linkage component, and the reset torsion spring. The detachable connection mechanism is located between the inner / outer handle and the lock cover. The reset rotating component is located inside the lock cover, with one end connected to the lock cover via the reset torsion spring, and the other end extending out of the lock cover to form a reset mounting base. One end of the linkage component is fixedly connected to the inner / outer handle via a first screw, and the other end is fixedly connected to the reset mounting base via a second screw, thus linking the linkage component and the reset rotating component. Both the linkage component and the reset rotating component have linkage holes at their centers, allowing the square shaft connecting the inner / outer handle to pass through and achieve synchronous rotation. The first screw and the second screw... The detachable connection of the screw thread allows the inner / outer handles to be installed last, eliminating the need to rotate and align the screw holes, simplifying the installation process and preventing the screwdriver from scratching the panel surface. The two reset feet of the reset torsion spring abut against the inner wall of the lock cover, limiting the rotation angle of the reset rotating component and preventing excessive rotation that could cause misalignment. At the same time, the elastic force of the reset torsion spring provides the reset power for the reset rotating component, ensuring that the inner / outer handles can automatically reset after rotation. The linkage hole ensures that the square shaft, the reset rotating component, and the linkage component are coaxial, ensuring the synchronous movement of the lock body and bolt when the inner / outer handles are rotated. This prevents the bolt from jamming or misaligning due to loose connections, significantly improving the convenience of lock installation and the stability of long-term use.

[0025] The aforementioned swing door lock can be further configured as follows: one end of the inner and outer handles corresponding to the linkage components is provided with a first mounting cavity covering the linkage component; one end of the linkage component corresponding to the reset mounting seat is provided with a second mounting cavity covering the reset mounting seat; the second mounting cavity is provided with a plurality of positioning mounting slots; the reset mounting seat is provided with positioning mounting posts that cooperate with the positioning mounting slots; the lock cover and the abutting surface of the linkage component are provided with corresponding abutting wear-resistant plates; and a square shaft sleeve is provided between the reset rotating component or the linkage component and the square shaft.

[0026] By adopting the above technical solution, a first mounting cavity is provided at one end of the inner / outer handle corresponding to the linkage component, completely covering the linkage component and restricting the radial displacement and wobbling of the linkage component relative to the handle. A second mounting cavity is provided at one end of the linkage component corresponding to the reset mounting seat, covering the reset mounting seat. At the same time, the positioning mounting groove in the second mounting cavity is inserted and matched with the positioning mounting post on the reset mounting seat, further restricting the relative rotation and misalignment between the linkage component and the reset mounting seat. Wear-resistant plates are provided on the abutting surfaces of the lock cover and the linkage component to reduce long-term frictional wear. A square shaft sleeve is provided between the reset rotating component or the linkage component and the square shaft to optimize the installation clearance of the square shaft and reduce the frictional resistance when the square shaft rotates. The wear-resistant plates reduce the frictional wear between the lock cover and the linkage component, extending the service life of the components. The square shaft sleeve optimizes the smoothness of the square shaft rotation, reduces operating resistance and noise, and improves the user experience, thereby improving the overall convenience of lock installation and the reliability of long-term use.

[0027] The aforementioned swing door lock can be further configured as follows: A buffer pad is provided at the end of the lock cover away from the inner or outer handle. The buffer pad includes a spacer for installation on the inner side of the lock cover and a pad for contact with the side wall surface of the lock cover. The spacer and the pad are connected and the connection is stepped. The buffer pad has several positioning grooves. The lock cover has positioning blocks that correspond to and fit into the positioning grooves. Each positioning block includes a positioning connecting block and a positioning reinforcement part connected to the side wall of the lock cover on one side of the positioning connecting block. The positioning groove includes a positioning connecting groove that engages with the positioning connecting block and a positioning reinforcement groove that engages with the positioning reinforcement part. The edge of the spacer has a positioning opening communicating with the positioning reinforcement groove. The end of the positioning groove away from the lock cover has at least one inclined protrusion that gradually moves away from the lock cover from the outer side to the inner side of the buffer pad. The surface of the inclined protrusion away from the lock cover has several anti-slip strips, which are parallel to the side wall of the lock cover.

[0028] By adopting the above technical solution, a stable connection between the buffer pad and the lock cover and door body is achieved through the multi-structure design of the buffer pad. The buffer pad consists of a spacer pad and a mat pad, which form a stepped structure with a height difference through a stepped connection, limiting the relative displacement of the spacer pad and the mat pad. The positioning groove on the buffer pad and the positioning block on the lock cover are fitted one-to-one. The end of the positioning groove away from the lock cover is provided with a beveled protrusion, which gradually moves away from the lock cover from the outside to the inside, forming a wedge-shaped guide surface. The anti-slip strip on its surface increases the contact roughness with the door body mounting groove. The stepped connection enhances the fit stability between the buffer pad and the lock cover. The multi-dimensional limiting of the positioning groove and the positioning block prevents the buffer pad from sliding or falling off the lock cover surface. The wedge-shaped design of the beveled protrusion guides it to be embedded in the door body mounting groove and forms a reverse abutment to prevent it from falling outward. The anti-slip strip increases the frictional resistance and further prevents the buffer pad from shifting, thereby avoiding the handle sagging due to the loosening of the buffer pad, and significantly improving the stability and reliability of the lock in long-term use.

[0029] The beneficial effects of this utility model are as follows:

[0030] 1. The operation status of the deadbolt mechanism is displayed in real time in the status window through the identification features. Users can intuitively judge the status of the lock without trying to push it or verifying it with a key, which significantly improves the safety and convenience of use.

[0031] 2. The anti-locking mechanism, through the coordinated design of the anti-locking block, locking rod, and return spring, ensures that the locking rod is in a stable position in the anti-lock / unlocked state by continuously pushing the driven block against the anti-locking cam with the return spring. The oblique switching part achieves a smooth transition and avoids jamming. The arc groove, limit clamp, and rotation limit part further restrict the displacement and rotation angle of the anti-locking block to ensure the accuracy and reliability of the anti-lock / unlocking action.

[0032] 3. The inner / outer handle and lock cover are finally installed through a detachable connection mechanism, eliminating the need to rotate the handle to align with the screw holes and avoiding scratching the panel surface with a screwdriver. The lock body is directly clamped and locked by the mounting studs and mounting screws, simplifying the installation steps and adapting to different specifications of profiles.

[0033] 4. The double reset feet of the reset torsion spring limit the rotation angle, the wear-resistant plate reduces the friction loss between the lock cover and the linkage, the square shaft sleeve optimizes the smoothness of the square shaft rotation, and the buffer pad is prevented from shifting or falling off through stepped connection, multi-dimensional limiting of positioning groove and positioning block, inclined protrusion and anti-slip strip design, thus preventing the handle from drooping. All components adopt high polymer particle ceramic coating process, stainless iron wear-resistant plate and PE square shaft sleeve to improve corrosion resistance and anti-aging performance and adapt to harsh environments.

[0034] 5. The magnetic design of the outer magnetic cover facilitates the opening and closing of the outer cavity for maintenance. The unlocking port of the lock cylinder retains the traditional key function, balancing security and ease of operation. The square shaft sleeve reduces rotational noise, and the reset torsion spring enables the handle to automatically reset, improving the user's operating experience.

[0035] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0036] Figure 1 This is a three-dimensional schematic diagram of Embodiment 1 of the present utility model.

[0037] Figure 2 Explosion of Embodiment 1 of this utility model Figure 1 .

[0038] Figure 3 Explosion of Embodiment 1 of this utility model Figure 2 .

[0039] Figure 4 This is a cross-sectional schematic diagram of Embodiment 1 of this utility model.

[0040] Figure 5 This is a schematic diagram of the installation structure of the lock cover and buffer pad in Embodiment 1 of this utility model. Figure 1 .

[0041] Figure 6 This is a schematic diagram of the installation structure of the lock cover and buffer pad in Embodiment 1 of this utility model. Figure 2 .

[0042] Figure 7 This is a schematic diagram of the internal handle structure in Embodiment 1 of this utility model. Figure 1 .

[0043] Figure 8 This is a schematic diagram of the internal handle structure in Embodiment 1 of this utility model. Figure 2 .

[0044] Figure 9 This is a schematic diagram of the internal handle structure in Embodiment 1 of this utility model. Figure 3 .

[0045] Figure 10 This is a schematic diagram of the external handle structure of Embodiment 1 of this utility model. Figure 1 .

[0046] Figure 11 This is a schematic diagram of the external handle structure of Embodiment 1 of this utility model. Figure 2 .

[0047] Figure 12 This is a diagram showing the state of the buffer pad and door panel during installation in Embodiment 1 of this utility model.

[0048] Figure 13 This is a diagram showing the state of the lock body and door panel during installation in Embodiment 1 of this utility model.

[0049] Figure 14 for Figure 13 Exploded view.

[0050] Figure 15 This is a schematic diagram of the structure of Embodiment 2 of the present invention. Figure 1 .

[0051] Figure 16 This is a schematic diagram of the structure of Embodiment 2 of the present invention. Figure 2 .

[0052] Figure 17 for Figure 15 Enlarged view of point A. Detailed Implementation

[0053] Example 1: As Figures 1-14 As shown, a swing door lock includes an inner handle 1 and an outer handle 2 connected to each other, a handle mounting mechanism connecting the inner handle 1 and the outer handle 2, a lock rod structure that links the inner handle 1 and the outer handle 2 to rotate synchronously, and a lock body 4. The lock rod structure includes a square shaft 3 connecting the inner handle 1 and the outer handle 2 and a transmission shaft 31 passing through the square shaft 3. The handle mounting mechanism includes lock covers 5 connected to the inner handle 1 and the outer handle 2 respectively, and mounting studs 51 and mounting screws 52 correspondingly provided on the two lock covers 5. The lock body 4 has a clearance hole 41 for the mounting studs 51 to pass through and a square shaft hole 43 for the lock tongue 42 on the lock body 4 to retract or extend into the lock body 4 after the square shaft 3 passes through. The mounting screw 52 passes through one of the lock covers 5 and is threadedly connected to the mounting stud 51 on the other lock cover 5, locking the lock body 4 between the two lock covers 5. The surface of the mounting screw 52 is covered by a decorative cover 53, making the outer surface of the lock cover 5 more aesthetically pleasing.

[0054] like Figures 1-11As shown, both the inner handle 1 and the outer handle 2 are provided with detachable connection mechanisms between themselves and their corresponding lock covers 5. These detachable connection mechanisms include a reset rotating member 54 housed within the lock cover 5 and a linkage member 55 for connecting the handle. One end of the reset rotating member 54 is connected to the lock cover 5 with a reset torsion spring 541, and the other end extends through the lock cover 5 and is provided with a reset mounting base 542. One end of the linkage member 55 is connected to the handle via a first screw 551, and the other end is connected to the reset mounting base 542 via a second screw 543. The reset torsion spring 541 has two vertically arranged reset feet 5411 extending outwards. The inner wall of the lock cover 5 has two mounting screws 52 and a reset limiting block 501 that abut against the reset feet 5411. For example, when the handle rotates 44°, the reset torsion spring 5411 on one side... The reset foot 5411 of the lock 41 will deform against the mounting screw 52 on the same side, and the reset foot 5411 on the other side will be limited against the reset limit block 501 to prevent excessive deformation and failure to reset. The two reset feet 5411 ensure that the handle has a reset function in both forward and reverse rotation, making the lock more suitable for situations requiring forced entry. Both the linkage 55 and the reset rotating part 54 have linkage holes 550 at their centers for the square shaft 3 to pass through, and the linkage between the inner handle 1 and the outer handle 2 is achieved through the square shaft 3. The inner handle 1 and the outer handle 2 each have a first mounting cavity 11 covering the linkage 55 at one end corresponding to the linkage 55, and a second mounting cavity 552 covering the reset mounting seat 542 at one end corresponding to the linkage 55. The mounting cavity 552 has several positioning mounting slots 5521. The reset mounting base 542 has positioning mounting posts 5421 that mate with the positioning mounting slots 5521. The surfaces of the reset rotating part 54 and the linkage part 55 are provided with corresponding wear-resistant plates 56. A square shaft sleeve 32 is provided between the reset rotating part 54 and the square shaft 3. The square shaft sleeve 32 is preferably made of PE material, which makes the installation of the square shaft 3 convenient and quick, and reduces the noise generated when the handle rotates. The wear-resistant plates 56 are preferably made of stainless steel. The wear-resistant plates 56 replace the lock cover 5 in contact with the linkage part 55, which solves the common problem of the gap increasing due to wear after long-term use of the original lock. This prevents the lock from sagging or dropping after long-term use. The handle, lock cover 5 and other parts are all made of high-quality materials. The molecular particles, processed using ceramic electrophoresis, can withstand various harsh operating environments and conditions. Because the handle and linkage 55 are detachably connected, the handle 5 is installed last, making installation more convenient. This also solves the common problem of requiring the handle to be rotated 45 degrees to tighten screws when installing a one-piece handle 5, which could scratch the handle surface. The internal square shaft's interlocking design makes the handle more reliable and prevents loosening. To facilitate the installation of the first screw 551 and the deadbolt assembly, both the inner handle 1 and the outer handle 2 have an inner cavity 10 and an outer cavity 20. Each inner cavity 10 and outer cavity 20 contains multiple magnets and has an inner magnetic cover 101 and an outer magnetic cover 201 for attraction to the magnets.Both the inner magnetic cover 101 and the outer magnetic cover 201 are made using a stainless steel ceramic coating process, which gives them a more metallic feel and stronger anti-aging properties compared to traditional plastic covers. They also allow for easy concealment of the key inside the outer cavity 20, preventing loss and facilitating door opening in emergencies.

[0055] like Figures 13-14 As shown, the lock body 4 has a latch stop 43 at one end of the latch 42. A latch groove B1 is provided on the profile B for the lock body 4 to pass through and abut against the latch for limitation. A lock body positioning shell 44 is provided on the outside of the lock body 4. The lock body positioning shell 44 has an adjusting groove 441, and a third screw 45 is provided in the adjusting groove 441 to connect the lock body positioning shell 44 to the lock body 4. Thus, during installation, only one end of the lock body 4 needs to be passed through the latch groove B1 first, and then the lock body positioning shell 44 is fitted onto the outside of the lock body 4. The lock body positioning protrusion 442 of the lock body positioning shell 44 cooperates with the lock tongue stop 43 to clamp the profile B, thereby completing the installation and positioning of the lock body 4 and the profile B. This makes subsequent installation easier as there is no need to support the lock body 4. The setting of the adjustment slot 441 allows the lock body 4 to adapt to profiles B of different specifications. At the same time, in order to improve the stability of the lock cover 5 installation and maintain its aesthetics, the end of the lock cover 5 needs to abut against the profile B and is provided with a clearance groove 57 corresponding to the lock body positioning protrusion 442.

[0056] like Figures 1-6 , Figure 12As shown, each end of the lock cover 5 away from the handle is provided with a buffer pad 6. The buffer pad 6 includes a spacer 61 for installation with the inner side of the lock cover 5 and a padding 62 for contact with the side wall surface of the lock cover 5. The spacer 61 and the padding 62 are connected and the connection is stepped. The buffer pad 5 is provided with four positioning grooves 63. The lock cover 5 is provided with positioning blocks 58 that are fitted into the positioning grooves 63 one by one. The positioning block 58 includes a positioning connecting block 581 and a positioning reinforcing part 582 provided on one side of the positioning connecting block 581 and connected to the side wall of the lock cover 5. The positioning groove 63 includes a positioning connecting groove 631 that is inserted into the positioning connecting block 581 and a positioning reinforcing groove 632 that is inserted into the positioning reinforcing part 582. The edge is provided with a positioning opening 633 communicating with the positioning reinforcement groove 632. The end of the positioning groove 63 away from the lock cover 5 is provided with four inclined protrusions 64 that gradually move away from the lock cover 5 from the outside to the inside of the buffer pad 6. The surface of the inclined protrusions 64 away from the lock cover 5 is provided with several anti-slip strips 641. The anti-slip strips 641 are arranged parallel to the side wall of the lock cover 5. The buffer pad 6 is designed with two parts: a spacer pad 61 and a pad 62. The spacer pad 61 is used to install on the inside of the lock cover 5, and the pad 62 is attached to the side wall surface of the lock cover 5. The two are connected by a stepped connection. The stepped design is a stepped structure in which the spacer pad 61 and the pad 62 form a height difference at the connection, so that the spacer pad 61 can penetrate deep into the inside of the lock cover and make close contact with the internal structure of the lock cover 5. The pad 62 covers the outer surface of the lock cover sidewall, forming a double fit on both the inner and outer sides. The stepped connection, through the limiting effect of the steps, constrains the relative displacement of the spacer 61 and the pad 62 on the lock cover surface, thereby significantly improving the connection stability between the buffer pad and the lock cover. This prevents the buffer pad from shifting or falling off due to handle rotation or external force, providing a basic support for the long-term stable use of the lock. The buffer pad 6 is integrally molded from TPE material, which can absorb the collision stress between the lock body and the door body C through its own elastic deformation during the use of the lock. By setting a sloping protrusion 64 at the end of the buffer pad 6 away from the lock cover 5, the geometric characteristics of the sloping surface are used to achieve mechanical engagement with the door body mounting groove C1. When the buffer pad 6 is pressed into the door mounting groove C1, the inclined surface of the sloping protrusion 64 contacts the edge or inner wall of the door mounting groove C1. Through the guiding effect of the sloping surface (the sloping direction is low on the outside and high on the inside), the protrusion is guided to smoothly embed into the door mounting groove C1. After embedding, the inclined surface of the sloping protrusion 64 forms a reverse abutment relationship with the inner wall of the door mounting groove C1, generating mechanical resistance that prevents the protrusion from falling outward, thereby fixing the buffer pad 6 and the door C as one, significantly enhancing the bonding force between the buffer pad 6 and the door C, effectively preventing the buffer pad from shifting or falling off due to the lateral stress or gravity caused by the long-term rotation of the handle, and thus avoiding the sagging phenomenon of the handle due to the loosening of the buffer pad 6.

[0057] like Figures 1-11 , Figure 17As shown, the inner handle 1 is equipped with a deadbolt mechanism, and the outer handle 1 is equipped with a status feedback mechanism linked to the deadbolt mechanism. The deadbolt mechanism includes a deadbolt block 7 rotatably disposed inside the inner handle, a locking rod 71 disposed on one side of the deadbolt block 7, and a deadbolt drive assembly 9 that drives the deadbolt block 7 to rotate for locking or unlocking actions. One end of the deadbolt drive assembly extends out of the inner handle 1 and is equipped with a control end, while the other end is linked to the deadbolt cam 72 of the deadbolt block 7. The deadbolt cam 72 is provided with a locking part 721, a switching part 722, and an unlocking part 723 in sequence along the rotation direction of the deadbolt block. The switching part 722 is obliquely arranged, with its higher end connected to the locking part 721 and its lower end connected to the unlocking part 723. One end of the locking rod 71 passes through the inner handle 1, and the other end is equipped with a driven block 711. A return spring 712 is sleeved on the outside of the locking rod 71. The return spring 712 drives the driven block 711 to move towards the deadbolt cam 72. When the deadbolt cam 72 rotates, the locking rod 71 rotates to unlock the deadbolt cam 72. When the locking block 7 is in the locked state, one end of the locking rod 71 abuts against the locking part 721, and the other end passes through the outside of the inner handle 1 and inserts into the lock housing 5 to restrict the rotation of the inner handle 1. When the anti-locking block 7 is in the unlocked state, one end of the locking rod 71 abuts against the unlocking part 723, and the other end retracts into the inner handle 1 and disengages from the lock housing 1, allowing the inner handle 1 to rotate freely. The locking part 721 is provided with an arc-shaped groove 7211 that matches the end of the driven block 711. The end of the anti-locking block 7 facing the outer handle 2 passes through the inner handle 1 and is connected to a limiting clamp 73. The limiting clamp 73 restricts the freedom of the anti-locking block 7 in the front and back directions. A rotation limiting part 74 is provided between the anti-locking cam 72 and the inner handle 1, and the rotation angle of the anti-locking block 7 is restricted by the rotation limiting part 74. The anti-locking block 7 is provided with a transmission connection groove 70 that is linked with the outer transmission component (lock cylinder 8) through the transmission shaft 31. This realizes the locking and unlocking function of the inner side of the inner handle 1.

[0058] like Figures 1-11As shown, the status feedback mechanism includes a lock cylinder 8 that rotates inside the outer handle and a status window 2011 on the surface of the outer magnetic cover 201 of the outer handle 2. One end of the lock cylinder 8 rotates synchronously with the anti-locking block 7 via the drive shaft 31, and the other end is provided with a status display panel 81. The status display panel 81 has two marking features 82, preferably red and green. The status window 2011 is located on the rotation path of the marking features 82. The outer handle 2 has a lock cylinder corresponding to the lock cylinder 8. Mounting base 21, lock cylinder 8 has a locking ring 83 at one end. One end of lock cylinder 8 abuts against lock cylinder mounting base 21 via status display panel 81, and the other end abuts against locking ring 83 for limitation, thereby rotatably setting lock cylinder 8 within lock cylinder mounting base 21 and restricting the freedom of lock cylinder 8 in the front and back directions. Outer handle 2 has an outer locking groove 22 and an outer latching groove 23 corresponding to locking ring 81. The outer side of locking ring 83 has an outer latch 831 that engages with outer latching groove 23 and an outer latch 831 that engages with outer locking groove 23. The lock cylinder 8 has a lock cylinder ring 84 at the end away from the status display panel. The inner ring of the locking ring 83 has several inner locking blocks 833 that cooperate with and lock the lock cylinder ring 84. The end of the lock cylinder 8 facing the outer magnetic cover 201 has an unlocking port 85 for key insertion. The lock cylinder 8 is a blade lock; when in the non-key unlocked state, the blades of the lock cylinder 8 extend out and abut against the inner wall of the lock cylinder mounting base 21, restricting the lock cylinder 8 from rotating within the lock cylinder mounting base 21. When rotation is required, simply... Insert the corresponding key into the unlocking port 85 of the lock cylinder 8. The blade will retract the lock cylinder 8, at which point the lock cylinder 8 will rotate, thereby triggering the deadbolt block 7 to rotate and unlock, thus enabling external unlocking. To allow users to intuitively understand the locking status of the lock, red and green are set on the rotation path of the status display panel 81. Red represents the locked state, and green represents the unlocked state. When the deadbolt block 7 or the lock cylinder 8 rotates, the status window 2011 can display the current lock status, allowing users to intuitively understand the status.

[0059] like Figures 7-9 As shown, the deadbolt drive assembly 9 includes a deadbolt linkage 91, a push block 911 disposed on the deadbolt linkage 91, and a deadbolt linkage groove 912 disposed on the deadbolt linkage 91 facing the deadbolt block 7. The deadbolt block 7 is eccentrically provided with an eccentric linkage post 701 inserted into the deadbolt linkage groove 912. In this way, the user only needs to push and pull the push block 911 up and down on the outside of the inner handle 1 to realize the rotation of the deadbolt block 7, thereby completing the locking and unlocking actions.

[0060] Example 2: As Figures 15-17As shown, the main difference between the lock in Embodiment 2 and Embodiment 1 lies in the deadbolt drive assembly 9. Embodiment 1 has a push-pull button structure, while Embodiment 2 has a knob structure. The deadbolt drive assembly 9 in Embodiment 2 includes a knob 92 located at the end of the deadbolt block 7 away from the outer handle 2. One end of the knob 92 extends through the inner magnetic cover plate 101 for user operation. By rotating the knob 92, the deadbolt block 7 is directly driven to rotate, thereby completing the locking and unlocking actions.

Claims

1. A swing door lock, comprising an inner handle and an outer handle connected to each other, a handle mounting mechanism connecting the inner and outer handles, and a locking rod structure that links the inner and outer handles to rotate synchronously, wherein the inner handle is provided with a deadbolt mechanism, characterized in that: The outer handle is provided with a status feedback mechanism that is linked to the deadbolt mechanism. The status feedback mechanism includes an outer transmission component that rotates inside the outer handle and a status window opened on the surface of the outer handle at the end away from the inner handle. One end of the outer transmission component rotates synchronously with the deadbolt mechanism, and the other end is provided with at least one identification feature. The status window is set on the rotation path of the identification feature.

2. A swing door lock according to claim 1, characterized in that: The external transmission component is a lock cylinder. The lock cylinder has a status display panel at one end facing the status window. The identification feature is set on the status display panel. The lock rod structure includes a square shaft connecting the inner handle and the outer handle, and a transmission shaft passing through the square shaft. One end of the transmission shaft is connected to the anti-locking mechanism, and the other end is connected to the lock cylinder.

3. A swing door lock according to claim 2, characterized in that: The outer handle has an outer cavity, and the surface of the outer handle is provided with an outer magnetic cover plate that covers the outer cavity. The status display panel is set on the outer magnetic cover plate. The outer handle is provided with a lock cylinder mounting seat corresponding to the lock cylinder. One end of the lock cylinder is provided with a snap ring. One end of the lock cylinder abuts against the lock cylinder mounting seat through the status display panel, and the other end abuts against the snap ring for limitation, thereby rotatably setting the lock cylinder in the lock cylinder mounting seat and restricting its freedom of movement in the front and back directions.

4. A swing door lock according to claim 3, characterized in that: The outer handle is provided with an outer slot and an outer buckle slot at the corresponding snap ring. The outer side of the snap ring is provided with an outer buckle that engages with the outer buckle slot and an outer snap block that engages with the outer slot. The end of the lock cylinder away from the status display panel is provided with a lock cylinder ring. The inner ring of the snap ring is provided with several inner snap blocks that engage with and lock the lock cylinder ring. The end of the lock cylinder facing the outer magnetic cover is provided with an unlocking port for inserting a key to unlock.

5. A swing door lock according to any one of claims 1-4, characterized in that: The deadbolt mechanism includes a deadbolt block rotatably disposed inside the inner handle, a locking rod disposed on one side of the deadbolt block, and a deadbolt drive assembly that drives the deadbolt block to rotate for locking or unlocking actions. One end of the deadbolt drive assembly extends out of the inner handle and has a control end, while the other end is linked to the deadbolt cam of the deadbolt block. The deadbolt cam has a locking part, a switching part, and an unlocking part arranged sequentially along the rotation direction of the deadbolt block. The switching part is obliquely arranged, with the higher part connected to the locking part and the lower part connected to the unlocking part. One end of the locking rod passes through the inner handle, and the other end has a driven block. A return spring is sleeved on the outside of the locking rod. The return spring drives the driven block to move towards the deadbolt cam. When the deadbolt block is in the locked state, one end of the locking rod abuts against the locking part, and the other end extends out of the outside of the inner handle. When the deadbolt block is in the unlocked state, one end of the locking rod abuts against the unlocking part, and the other end retracts into the inner handle.

6. A swing door lock according to claim 5, characterized in that: The locking part is provided with an arc-shaped groove that matches the end of the driven block. The end of the anti-locking block facing the outer handle passes through the inner handle and is connected to a limit clamp. The limit clamp restricts the freedom of the anti-locking block in the front and back directions. A rotation limit part is provided between the anti-locking cam and the inner handle, and the rotation limit part restricts the rotation angle of the anti-locking block.

7. A swing door lock according to any one of claims 2-4, characterized in that: The swing door lock also includes a lock body disposed between the inner and outer handles. The handle mounting mechanism includes a lock cover connected to the inner and outer handles respectively, and mounting studs and mounting screws disposed on the two lock covers respectively. The lock body has a clearance hole for the mounting screw or mounting stud to pass through, and a square shaft hole for the lock tongue on the lock body to retract or extend into the lock body after passing through. The mounting screw passes through one of the lock covers and is threadedly connected to the mounting stud on the other lock cover, locking the lock body between the two lock covers.

8. A swing door lock according to claim 7, characterized in that: The inner and outer handles are each provided with a detachable connection mechanism to the corresponding lock cover. The detachable connection mechanism includes a reset rotating component located inside the lock cover and a linkage component for connecting the inner or outer handle. One end of the reset rotating component is provided with a reset torsion spring between it and the lock cover, and the other end extends out of the lock cover and is provided with a reset mounting seat. One end of the linkage component is connected to the inner or outer handle by a first screw, and the other end is connected to the reset mounting seat by a second screw. The reset torsion spring is provided with two reset feet extending outward. The inner wall of the lock cover is provided with mounting studs or mounting screws that abut against the reset feet. Both the linkage component and the reset rotating component are provided with linkage holes at their centers for the square shaft to pass through.

9. A swing door lock according to claim 8, characterized in that: The inner and outer handles each have a first mounting cavity covering the linkage component at one end, and the linkage component has a second mounting cavity covering the reset mounting seat at one end. The second mounting cavity has a plurality of positioning mounting slots. The reset mounting seat has a positioning mounting post that is inserted into the positioning mounting slot. The lock cover and the linkage component abut each other with a corresponding wear-resistant plate. A square shaft sleeve is provided between the reset rotating component or the linkage component and the square shaft.

10. A swing door lock according to claim 7, characterized in that: The lock cover is provided with a buffer pad at the end away from the inner or outer handle. The buffer pad includes a spacer for installation with the inner side of the lock cover and a pad for contact with the side wall surface of the lock cover. The spacer and the pad are connected and the connection is stepped. The buffer pad has several positioning grooves. The lock cover has positioning blocks that are fitted into the positioning grooves one by one. The positioning block includes a positioning connecting block and a positioning reinforcement part that is located on one side of the positioning connecting block and connected to the side wall of the lock cover. The positioning groove includes a positioning connecting groove that is inserted into the positioning connecting block and a positioning reinforcement groove that is inserted into the positioning reinforcement part. The edge of the spacer has a positioning opening that communicates with the positioning reinforcement groove. The end of the positioning groove away from the lock cover has at least one inclined protrusion that gradually moves away from the lock cover from the outer side to the inner side of the buffer pad. The surface of the inclined protrusion away from the lock cover has several anti-slip strips, which are parallel to the side wall of the lock cover.

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