Sliding door lock body
By adopting the linkage mechanism of the straight-out pushing plate and the steering bump in the sliding door lock body, the hook tongue is first straight out into the buckle groove, and then the hook tongue is hooked on the inner wall of the buckle plate by rotating the steering bump, solving the problem of too large distance between the lock tongue and the buckle plate in the traditional lock body, achieving better sealing and door strength.
Patent Information
- Application Number
- CN202421303016.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-07
AI Technical Summary
When designing a traditional sliding door lock body, the distance between the lock tongue and the inner end surface of the buckle plate is large, resulting in poor door sealing and may affect safety. At the same time, reducing the rotation angle of the lock tongue to reduce the spacing will reduce the lock door strength.
A sliding door lock body is designed, and the linkage mechanism of the straight pushing plate and the steering bump is adopted, so that the hook tongue first goes straight into the buckle groove, and then the hook tongue hooks the inner wall of the buckle plate through the rotation of the steering bump to achieve the door lock.
Through this design, the spacing between the lock tongue and the inner end surface of the buckle plate can be effectively controlled within a small range, ensuring the strength of the lock door, while improving the sealing and safety of the door.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of locks, and in particular to a sliding door lock body. Background Art
[0002] As a common type of door, the design of the lock body of the sliding door has an important impact on the safety and sealing of the door. The traditional sliding door lock body usually adopts a rotating lock tongue. When the door is closed, the lock tongue rotates to hook the inner side of the door frame plate, thereby achieving the effect of locking the door. However, this lock body design has certain problems in practical application.
[0003] When designing a traditional sliding door lock, the rotation path of the lock tongue is restricted, resulting in a large gap between the lock tongue and the inner end surface of the gusset plate. The existence of this gap allows the sliding door to still open a gap when it is closed, which reduces the sealing of the door and may also pose a potential threat to the safety of the door. In order to reduce this gap, one possible solution is to reduce the rotation angle of the lock tongue. However, this approach will lead to a reduction in the contact area between the lock tongue and the gusset plate, thereby reducing the strength of the door lock, which is also not conducive to the safety and stability of the door.
[0004] Therefore, how to reduce the distance between the lock tongue and the inner end surface of the buckle plate while ensuring the strength of the door lock has become a technical problem that needs to be solved urgently in the field of sliding door lock body design. Utility Model Content
[0005] In order to improve the sealing performance of the door while ensuring the strength of the door lock, the present application provides a sliding door lock body.
[0006] The present application provides a sliding door lock body adopting the following technical solution:
[0007] A sliding door lock body comprises a shell, a square core, a lock tongue assembly and a linkage assembly; the shell comprises a bottom plate, a cover plate and a panel, the panel is provided with a lock hole for the lock tongue assembly to enter and exit; the linkage assembly comprises a straight-out push piece, the straight-out push piece is slidably connected in the shell along a direction perpendicular to the panel; the lock tongue assembly comprises a hook tongue and a steering seat, the steering seat is rotatably connected to the front end of the straight-out push piece close to the panel, the hook tongue is arranged at one end of the steering seat facing the panel, and the front end of the hook tongue is opposite to the lock hole; the hook tongue is provided with a hook groove, and the end face of the hook groove on one side away from the straight-out push piece is a locking face; the steering seat is provided with a steering protrusion on the same side of the hook groove, and in the process of the hook tongue moving toward the outside of the lock hole, the steering protrusion can press against the inner wall of the panel and drive the hook tongue to rotate toward the hook groove.
[0008] By adopting the above technical solution, when the door is closed and needs to be locked, the straight-out push piece is first used to push the hook tongue into the buckle groove of the door frame buckle plate in a straight line, and then the turning protrusion is pushed to the panel to rotate, so that the hook tongue rotates and hooks the inner wall of the door frame buckle plate, and the door locking action is completed. Through the movement trajectory of first straight out and then rotating and hooking, the distance between the lock tongue and the inner end surface of the buckle plate can be controlled to be small, and the contact strength between the lock tongue and the buckle plate can be greatly guaranteed.
[0009] Optionally, the steering protrusion extends obliquely toward the panel, and an end surface of the steering protrusion facing the panel is parallel to the locking surface.
[0010] By adopting the above technical solution, when the steering protrusion rotates on the panel and finally makes the end face fit the panel, the locking surface can also be parallel to the inner end face of the door frame buckle plate, increasing the contact area between the two, thereby increasing the contact strength between the lock tongue and the buckle plate.
[0011] Optionally, the steering seat is provided with a first connecting hole that passes through both ends in the direction of the cover plate and the bottom plate, and the straight-out push piece is provided with a second connecting hole at a position corresponding to the first connecting hole; a linkage nail that passes through the first connecting hole and the second connecting hole is provided in the shell, and the steering seat and the straight-out push piece are rotationally connected through the linkage nail; the cover plate and the bottom plate are provided with waist-shaped holes for guiding the ends of the linkage nails, and the waist-shaped holes extend along the movement direction of the straight-out push piece.
[0012] By adopting the above technical solution, the linkage pin is used to realize the rotational connection between the steering seat and the straight-out push piece, and the waist-shaped hole and the linkage pin are used to limit the movement trajectory of the straight-out push piece to play a guiding role.
[0013] Optionally, a return torsion spring is arranged between the steering seat and the straight-out push piece, and the return torsion spring applies a force to the hook tongue to rotate toward the side away from the hook groove opening; a limiting protrusion is arranged on the steering seat on the side of the straight-out push piece away from the steering protrusion, and the limiting protrusion is pressed against the side of the straight-out push piece away from the steering protrusion under the action of the elastic force of the return torsion spring.
[0014] By adopting the above technical solution, the limit block and the reset torsion spring are used to keep the hook tongue and the straight-out push piece relatively fixed, and the hook tongue points directly to the lock hole; when the hook tongue is unlocked, it can automatically rotate and reset to avoid the hook groove still hooked on the door frame buckle plate, resulting in unlocking failure.
[0015] Optionally, a stopper is provided on the straight-out push piece; one end of the return torsion spring abuts against the side of the steering protrusion facing away from the hook groove, and the other end abuts against the side of the stopper facing the steering protrusion; the stopper and the steering protrusion are respectively provided with a limiting piece extending to above the end of the return torsion spring.
[0016] By adopting the above technical solution, the installation of the reset torsion spring is achieved, and the limiter can effectively prevent the two ends of the reset torsion spring from being separated from the clamping position.
[0017] Optionally, the linkage assembly also includes a transmission dial, which is slidably arranged in the shell along a movement direction perpendicular to the straight-out push piece; one end of the transmission dial is provided with a driving groove for the square core to push, and the other end is provided with a guide groove for driving the straight-out push piece to move; the straight-out push piece is provided with a transmission pin extending into the guide groove, and when the transmission dial moves, it pushes the transmission pin to move through the inner wall of the guide groove.
[0018] By adopting the above technical solution, the square core and the straight-out push piece are linked together by using a transmission dial, so that the straight-out push piece can be driven to move horizontally by rotating the square core.
[0019] Optionally, a positioning groove is provided on the square core at an eccentric position, and the opening of the positioning groove faces one side of the cover plate; a spring and a positioning bead are sequentially arranged in the positioning groove from bottom to top; positioning holes are respectively provided on the cover plate at both ends of the moving trajectory of the positioning bead as the square core rotates, and the aperture of the positioning hole is smaller than the diameter of the positioning bead.
[0020] By adopting the above technical solution, the positioning beads and the positioning holes are used to achieve a dual-position positioning effect on the square core, so that the square core is subjected to elastic resistance when rotating to the positioning hole, thereby maintaining the current position.
[0021] Optionally, a clearance hole is provided on the panel, and a flip member is rotatably arranged in the shell at the clearance hole, and the rotation axis of the flip member is perpendicular to the bottom plate and the cover plate; a raised operating part is arranged on the inner side of the lower end of the flip member.
[0022] By adopting the above technical solution, the sliding door panel can be completely hidden in the wall when it is in the open state. At this time, only the end face of the door panel is exposed. The door panel can be pulled out of the wall by simply flipping out the flip piece and holding the operating part.
[0023] Optionally, the rotation axis of the flip member is located on the inner side of the panel, and the rotation axis is located in the middle position of the flip member in the vertical direction; a stopper extending upward is provided on the inner side of the upper end of the flip member, and when the stopper abuts against the inner side of the panel, the flip member and the outer end surface of the panel are flush with each other.
[0024] By adopting the above technical solution, by pressing the flip part above the rotating shaft toward the inside of the panel, the part with the operating part at the lower end of the flip part can be pushed out; and after using the flip part, you only need to release your hand, and the flip part will automatically reset under the action of gravity, which is convenient for operation.
[0025] In summary, the present application includes at least one of the following beneficial technical effects:
[0026] 1. When the door is closed and needs to be locked, first use the straight-out push piece to push the hook tongue into the buckle groove of the door frame buckle plate in a straight line, then turn the convex block to the panel to rotate, so that the hook tongue rotates and hooks the inner wall of the door frame buckle plate, and the door is locked. Through the movement trajectory of first straight out and then rotating and hooking, the distance between the lock tongue and the inner end face of the buckle plate can be controlled to be small, and the contact strength between the lock tongue and the buckle plate can be guaranteed to a large extent;
[0027] 2. Use the limit block and reset torsion spring to keep the hook tongue and the straight-out push piece relatively fixed, and the hook tongue points directly to the lock hole; when the hook tongue is unlocked, it can automatically rotate and reset to avoid the hook groove still hooked on the door frame buckle plate, resulting in unlocking failure;
[0028] 3. Use the flip piece to make the sliding door panel completely hidden in the wall when it is open. At this time, only the end face of the door panel is exposed. Just flip out the flip piece, buckle the operating part and pull the door panel out of the wall. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0030] Figure 2 It is a schematic diagram of the partial structure of the flip member and the panel in the embodiment of the present application.
[0031] Figure 3 It is a schematic diagram of the exploded structure of the linkage component in the embodiment of the present application.
[0032] Figure 4 It is a schematic diagram of the exploded structure of the lock tongue assembly and the straight-out push piece in the embodiment of the present application.
[0033] Figure 5 It is a schematic diagram of the exploded structure of the square core, spring and positioning bead in the embodiment of the present application.
[0034] Description of reference numerals:
[0035] 1. Shell; 11. Bottom plate; 111. Waist-shaped hole; 12. Cover plate; 121. Positioning hole; 13. Panel; 131. Lock hole; 132. Give way hole; 2. Lock tongue assembly; 21. Hook tongue; 211. Hook groove; 2111. Locking surface; 22. Steering seat; 221. Steering convex block; 222. First connecting hole; 223. Limiting convex block; 23. Reset torsion spring; 3. Linkage assembly; 31. Transmission dial; 311. Drive groove; 312. Guide groove; 32. Straight-out push piece; 321. Second connecting hole; 322. Block; 3221. Limiting piece; 33. Linking nail; 34. Transmission nail; 4. Square core; 41. Drive block; 42. Positioning groove; 43. Spring; 44. Positioning bead; 5. Flipping piece; 51. Rotating shaft; 52. Operating part; 53. Stopper. DETAILED DESCRIPTION
[0036] The following is combined with Figure 1-5 This application is described in further detail.
[0037] The present application embodiment discloses a sliding door lock body. Figure 1 A sliding door lock body comprises a housing 1, a square core 4, a bolt assembly 2 and a linkage assembly 3. The square core 4 is rotatably connected to the lower part of the housing 1, and a driving block 41 extending radially outward is integrally formed on one side of the square core 4; the housing 1 is composed of a bottom plate 11, a cover plate 12 and a panel 13, wherein the cover plate 12 and the bottom plate 11 are located on the inner side of the sliding door plate, and the panel 13 is exposed at the front end of the sliding door plate.
[0038] Reference Figure 1 , Figure 2 The panel 13 is provided with a lock hole 131 and a clearance hole 132 from top to bottom. The lock hole 131 is used for the lock tongue assembly 2 to move in and out, and a flip member 5 is rotatably connected to the housing 1 at the clearance hole 132. The rotation axis 51 of the flip member 5 is located on the inner side of the panel 13 and is perpendicular to the bottom plate 11 and the cover plate 12. At the same time, the rotation axis 51 of the flip member 5 is located at the middle upper part of the flip member 5 in the vertical direction. A stopper 53 extending upward is integrally formed on the inner side of the upper end of the flip member 5, and a raised operating portion 52 is integrally formed on the inner side of the lower end of the flip member 5. When the stopper 53 abuts against the inner side of the panel 13, the outer end surfaces of the flip member 5 and the panel 13 are flush with each other. The setting of the flip member 5 allows the sliding door panel to be completely hidden in the wall when it is in the open state. At this time, only the end face of the door panel on one side where the panel 13 is located is exposed. You only need to flip out the flip member 5, then hold the operating part 52 to pull the door panel out of the wall. After using the flip member 5, you only need to release your hand, and the flip member 5 will automatically reset under the action of gravity, which is convenient for operation.
[0039] Reference Figure 1 , Figure 3 The linkage assembly 3 includes a straight-out push piece 32 and a transmission dial 31. The straight-out push piece 32 is slidably connected to the housing 1 in a direction perpendicular to the panel 13, and the transmission dial 31 is slidably connected to the housing 1 in a direction perpendicular to the movement direction of the straight-out push piece 32. A driving groove 311 for the driving block 41 to push is formed at the lower end of the transmission dial 31 on the side facing the square core 4. A guide groove 312 for driving the straight-out push piece 32 to move is formed at the upper end of the transmission dial 31. The guide groove 312 extends obliquely toward the panel 13 and is in the shape of a long strip. A transmission nail 34 extending into the guide groove 312 is installed on the straight-out push piece 32. When the transmission dial 31 moves, the transmission nail 34 is pushed to move through the inner wall of the guide groove 312, so that the straight-out push piece 32 can be driven to move horizontally by rotating the square core 4.
[0040] Reference Figure 1 , Figure 4 The bolt assembly 2 includes a hook tongue 21 and a steering seat 22, which are integrally formed by a powder metallurgy process. The steering seat 22 is provided with a first connection hole 222 that passes through both ends in the direction of the cover plate 12 and the bottom plate 11. The front end of the straight-out push piece 32 near the panel 13 is provided with a second connection hole 321 at a position corresponding to the first connection hole 222. The housing 1 is provided with a linkage pin 33 that penetrates the first connection hole 222 and the second connection hole 321. The steering seat 22 and the straight-out push piece 32 are rotatably connected by the linkage pin 33. The cover plate 12 and the bottom plate 11 are provided with a waist-shaped hole 111 that guides the end of the linkage pin 33, and the waist-shaped hole 111 extends along the movement direction of the straight-out push piece 32.
[0041] Reference Figure 1 , Figure 4 The hook tongue 21 is arranged at one end of the steering seat 22 facing the panel 13, and the front end of the hook tongue 21 is located in the lock hole 131. The lower end of the hook tongue 21 is formed with a hook groove 211, and the end surface of the hook groove 211 away from the straight-out push piece 32 is a locking surface 2111. A steering protrusion 221 is integrally formed on the steering seat 22 on the same side of the hook groove 211. The steering protrusion 221 extends obliquely toward the panel 13, and the end surface of the steering protrusion 221 facing the panel 13 is parallel to the locking surface 2111. When the door is closed and needs to be locked, the straight-out push piece 32 is first used to push the hook tongue 21 into the buckle groove of the door frame buckle plate along a straight line, and then the steering protrusion 221 is pushed against the panel 13 and rotated, so that the hook tongue 21 rotates to hook the inner wall of the door frame buckle plate, and the door locking action is completed.
[0042] Reference Figure 1 , Figure 4 A return torsion spring 23 is installed between the steering seat 22 and the straight-out push piece 32, and the return torsion spring 23 is sleeved on the linkage nail 33; a stopper 322 is formed on the straight-out push piece 32, one end of the return torsion spring 23 abuts against the side of the steering protrusion 221 facing away from the hook groove 211, and the other end abuts against the side of the stopper 322 facing the steering protrusion 221, so that the return torsion spring 23 applies a force to the hook tongue 21 to rotate toward the side facing away from the opening of the hook groove 211; the stopper 322 and the steering protrusion 221 are respectively provided with a limit piece 3221 extending to the top of the end of the return torsion spring 23, and the limit piece 3221 can effectively prevent the two ends of the return torsion spring 23 from detaching from the clamping position. A limiting protrusion 223 is integrally formed on the steering seat 22 at the side of the straight-out push piece 32 away from the steering protrusion 221. The limiting protrusion 223 is pressed against the side of the straight-out push piece 32 facing away from the steering protrusion 221 under the elastic force of the return torsion spring 23. The limiting protrusion 223 and the return torsion spring 23 enable the hook tongue 21 and the straight-out push piece 32 to remain relatively fixed, and the hook tongue 21 directly points to the lock hole 131; when the hook tongue 21 is unlocked, it can automatically rotate and reset to avoid the hook groove 211 still being hooked on the door frame buckle plate, resulting in unlocking failure.
[0043] Reference Figure 1 , Figure 5 A positioning groove 42 is formed on the square core 4 at an eccentric position, the opening of the positioning groove 42 faces one side of the cover plate 12, a spring 43 and a positioning bead 44 are placed in the positioning groove 42 from bottom to top, and a positioning hole 121 is respectively provided on the cover plate 12 at both ends of the moving track of the positioning bead 44 rotating with the square core 4, and the aperture of the positioning hole 121 is smaller than the diameter of the positioning bead 44. The positioning bead 44 and the positioning hole 121 are used to achieve a dual-position positioning effect on the square core 4, so that the square core 4 is subjected to elastic resistance when rotating to the positioning hole 121, thereby maintaining the current position.
[0044] The implementation principle of a sliding door lock body in the embodiment of the present application is:
[0045] When the door panel is closed and needs to be locked, the square core 4 is rotated, and the transmission dial 31 and the straight-out push piece 32 are used to push the hook tongue 21 into the buckle groove of the door frame buckle plate along a straight line, and then the turning protrusion 221 is pushed against the panel 13 to rotate, so that the hook tongue 21 rotates to hook the inner wall of the door frame buckle plate, and the door locking action is completed. When the door panel needs to be unlocked, the hook tongue 21 can automatically rotate and reset under the action of the reset torsion spring 23 to prevent the hook tongue 21 from still hooking on the door frame buckle plate.
[0046] In addition, the sliding door panel can be completely hidden in the wall when it is in the open state. At this time, only the end face of the door panel where the panel 13 is located is exposed. You only need to flip out the flip member 5, then hold the operating part 52 to pull the door panel out of the wall. After using the flip member 5, you only need to release your hand, and the flip member 5 will automatically return to its original position under the action of gravity, which is convenient for operation.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A sliding door lock body, comprising a housing (1), a square core (4), a bolt assembly (2) and a linkage assembly (3); the housing (1) comprises a bottom plate (11), a cover plate (12) and a panel (13); the panel (13) is provided with a lock hole (131) for the bolt assembly (2) to enter and exit; the characteristics are: The linkage assembly (3) comprises a straight-out push piece (32), and the straight-out push piece (32) is slidably connected to the housing (1) along a direction perpendicular to the panel (13); the lock tongue assembly (2) comprises a hook tongue (21) and a steering seat (22), and the steering seat (22) is rotatably connected to the front end of the straight-out push piece (32) close to the panel (13), and the hook tongue (21) is arranged at one end of the steering seat (22) facing the panel (13), and the front end of the hook tongue (21) is directly opposite to the lock hole (1 31); a hook groove (211) is provided on the hook tongue (21); an end surface of the hook groove (211) away from the straight-out push piece (32) is a locking surface (2111); a steering protrusion (221) is provided on the steering seat (22) on the same side as the hook groove (211); when the hook tongue (21) moves toward the outside of the lock hole (131), the steering protrusion (221) can press against the inner wall of the panel (13) and drive the hook tongue (21) to rotate toward the hook groove (211).
2. A sliding door lock body according to claim 1, characterized in that: The steering protrusion (221) extends obliquely toward the panel (13), and the end surface of the steering protrusion (221) facing the panel (13) is parallel to the locking surface (2111).
3. The sliding door lock body according to claim 1, characterized in that: The steering seat (22) is provided with a first connection hole (222) penetrating at both ends in the direction of the cover plate (12) and the bottom plate (11); the straight-out push piece (32) is provided with a second connection hole (321) at a position corresponding to the first connection hole (222); the housing (1) is provided with a linkage pin (33) penetrating the first connection hole (222) and the second connection hole (321); the steering seat (22) and the straight-out push piece (32) are rotationally connected via the linkage pin (33); the cover plate (12) and the bottom plate (11) are provided with a waist-shaped hole (111) for guiding the end of the linkage pin (33); the waist-shaped hole (111) extends along the movement direction of the straight-out push piece (32).
4. The sliding door lock body according to claim 1, characterized in that: A return torsion spring (23) is provided between the steering seat (22) and the straight-out push piece (32), and the return torsion spring (23) applies a force to the hook tongue (21) to rotate toward the side opposite to the opening of the hook groove (211); a limiting protrusion (223) is provided on the steering seat (22) on the side of the straight-out push piece (32) away from the steering protrusion (221), and the limiting protrusion (223) is pressed against the side of the straight-out push piece (32) opposite to the steering protrusion (221) under the elastic force of the return torsion spring (23).
5. A sliding door lock body according to claim 4, characterized in that: A stopper (322) is provided on the straight-out push piece (32); one end of the return torsion spring (23) abuts against a side of the steering protrusion (221) facing away from the hook groove (211), and the other end abuts against a side of the stopper (322) facing the steering protrusion (221); and a stopper (3221) extending to above the end of the return torsion spring (23) is provided on the stopper (322) and the steering protrusion (221), respectively.
6. The sliding door lock body according to claim 1, characterized in that: The linkage assembly (3) further comprises a transmission shifter (31), which is slidably arranged in the housing (1) along a direction perpendicular to the movement direction of the straight-out push piece (32); one end of the transmission shifter (31) is provided with a driving groove (311) for being pushed by the square core (4), and the other end is provided with a guide groove (312) for driving the straight-out push piece (32) to move; the straight-out push piece (32) is provided with a transmission pin (34) extending into the guide groove (312), and when the transmission shifter (31) moves, the transmission pin (34) is pushed to move through the inner wall of the guide groove (312).
7. The sliding door lock body according to claim 1, characterized in that: A positioning groove (42) is provided on the square core (4) at an eccentric position, the opening of the positioning groove (42) faces one side of the cover plate (12); a spring (43) and a positioning bead (44) are sequentially provided in the positioning groove (42) from bottom to top; positioning holes (121) are respectively provided on the cover plate (12) at both ends of a moving track of the positioning bead (44) rotating with the square core (4), and the aperture of the positioning hole (121) is smaller than the diameter of the positioning bead (44).
8. The sliding door lock body according to claim 1, characterized in that: The panel (13) is provided with a clearance hole (132), and a flip member (5) is rotatably arranged in the housing (1) at the clearance hole (132), wherein the rotation axis (51) of the flip member (5) is perpendicular to the bottom plate (11) and the cover plate (12); and a protruding operating portion (52) is arranged on the inner side of the lower end of the flip member (5).
9. A sliding door lock body according to claim 8, characterized in that: The rotation axis (51) of the flip member (5) is located on the inner side of the panel (13), and the rotation axis (51) is located at the middle position of the flip member (5) in the vertical direction; a stopper (53) extending upward is provided on the inner side of the upper end of the flip member (5); when the stopper (53) abuts against the inner side of the panel (13), the outer end surfaces of the flip member (5) and the panel (13) are flush with each other.