Barn sliding door lock

Abstract

The present application relates to a kind of barn sliding door lock, including set lock library and bolt assembly, bolt assembly includes bolt body, bolt shaft and unlocking button, bolt body inside is equipped with front and rear sliding bolt shaft and the bolt shaft compression spring of auxiliary bolt shaft reset, one end of bolt shaft is equipped with into lock button, the other end of bolt shaft is equipped with front and rear sliding unlocking press pin and the press pin compression spring of auxiliary unlocking press pin reset, the side wall of unlocking press pin is arranged with a circle of circular arc groove, the middle part of circular arc groove is also equipped with a circle of center groove, the side wall of bolt shaft is arranged with a circle of annular groove, annular groove is equipped with retractable steel ball, one end of steel ball is buckled into circular arc groove, the outside of bolt body is equipped with left and right sliding unlocking button and the button compression spring of auxiliary unlocking button reset, unlocking button is equipped with circular clamping hole, and circular clamping hole is sleeved on bolt shaft outside.The bolt shaft of the present application cannot complete into lock state without entering lock library, prevent false operation from damaging sliding door lock, influence sliding door lock life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of barn sliding door lock, in particular to a barn sliding door lock. BACKGROUND

[0002] The indoor sliding barn door is increasingly accepted and liked by consumers. The indoor barn sliding door is installed on the outside of the door frame (or door hole): the guide rail is fixed on the upper side of the outside of the door frame, and the wooden door is hung on the guide rail by using the roller support to move. The traditional lock is suitable for the conventional sliding door system installed in the door frame, and the guide rail is fixed on the upper side of the door frame. Although the barn sliding door is popular, there is no lock designed specifically for the characteristics of the barn door.

[0003] The existing sliding door lock is troublesome to install, and needs to be positioned and slotted by using a slotting tool, which is not conducive to the installation of people and the popularization of the lock. In an emergency, the traditional privacy lock does not have an emergency unlocking function, that is, it cannot be unlocked from the outside of the door. Moreover, the lock tongue of the traditional lock does not have a function of preventing the lock tongue from being retracted by mistake, and when the door is closed, the lock tongue will hit the lock box due to the mistaken retraction, resulting in damage to the lock tongue or the lock box. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a barn sliding door lock which is simple to install, has an emergency unlocking function from the outside, and the lock tongue is not in contact with the lock box and can be automatically reset.

[0005] The technical scheme adopted by the present application to solve the technical problem is to provide a barn sliding door lock, which comprises a lock box arranged on the sliding door and a lock tongue assembly arranged on one side of the door frame. The lock tongue assembly comprises a lock tongue body, a plug shaft sliding forward and backward, and a plug shaft compression spring assisting the reset of the plug shaft. One end of the plug shaft is provided with an unlocking button. The other end of the plug shaft is provided with a forward and backward sliding unlocking pin and a pin compression spring assisting the reset of the unlocking pin. A circular arc groove is arranged on the side wall of the unlocking pin. A central groove is further arranged in the middle of the circular arc groove. A ring-shaped groove is arranged on the side wall of the plug shaft. A telescopic steel ball is arranged in the ring-shaped groove. One end of the steel ball is buckled into the circular arc groove. A left and right sliding unlocking button and a button compression spring assisting the reset of the unlocking button are arranged on the outside of the lock tongue body. A circular clamping hole is arranged on the unlocking button, and the circular clamping hole is sleeved on the plug shaft.

[0006] As a supplement to the technical scheme of the present application, a cylindrical pin is arranged on the side of the plug shaft and inserted into the slit.

[0007] As a supplement to the technical solution described in this invention, the inner side of the lock tongue body is open and sealed by a decorative panel, and the through hole is formed on the decorative panel.

[0008] As a supplement to the technical solution described in this invention, a sleeve is connected inside the locking tongue body to the outer sleeve of the pin shaft, one end of the pin shaft compression spring abuts against the sleeve, and the other end of the pin shaft compression spring abuts against the cylindrical pin.

[0009] As a supplement to the technical solution described in this invention, the unlocking pin has an elongated through hole in the middle, and a knurled pin is inserted into the side wall of the other end of the pin shaft, the knurled pin being located inside the elongated through hole.

[0010] As a supplement to the technical solution described in this invention, the lock vault includes a lock vault base and a lock vault body. The lock vault base is fixed to the inside of the sliding door by self-tapping screws. The lock vault body is installed on the lock vault base. A lock groove is provided on one side of the lock vault body, and an insertion hole communicating with the lock groove is provided in the middle of the lock vault base.

[0011] As a supplement to the technical solution described in this invention, the insertion hole is a regular hexagonal through hole.

[0012] As a supplement to the technical solution described in this invention, it also includes an emergency hole decorative cover and an emergency unlocking key. The emergency hole decorative cover is installed on the outside of the sliding door and is arranged opposite to the lock base. The emergency hole decorative cover has an opening corresponding to the insertion hole, and one end of the emergency unlocking key has a insertion rod that cooperates with the insertion hole.

[0013] As a supplement to the technical solution described in this invention, the latch body is fixed to one side of the door frame by self-tapping screws.

[0014] As a supplement to the technical solution described in this invention, the central groove is a V-shaped groove.

[0015] Beneficial effects: This invention relates to a barn sliding door lock, which has the following advantages: 1. The locking state cannot be completed without the pin shaft entering the lock cylinder, preventing accidental damage to the sliding door lock and affecting its lifespan; 2. In an emergency, it can be unlocked from the outside using an emergency unlocking key or a thin rod; 3. It has a simple and beautiful appearance, is easy to install, and is convenient for DIY, requiring no professional grooving tools or equipment; 4. It is easy to operate, has a tactile feel for locking and unlocking, and ensures that the lock is properly engaged. Attached Figure Description

[0016] Figure 1 This is an installation diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the pin shaft, locking button and unlocking button described in this invention;

[0020] Figure 5 This is a schematic diagram of the structure of the unlocking button described in this invention;

[0021] Figure 6 This is an exploded view of the present invention.

[0022] Illustrations: 1. Sliding door, 2. Door frame, 3. Lock magazine, 4. Latch assembly, 5. Latch body, 6. Pin shaft, 7. Pin shaft spring, 8. Locking button, 9. Unlocking button, 10. Button spring, 11. Cylindrical pin, 12. Knurled pin, 13. Steel ball, 14. Unlocking button, 15. Button spring, 16. Decorative panel, 17. Flat hole, 18. Self-tapping screw, 19. Lock magazine base, 20. Lock magazine body, 21. Emergency unlocking key, 22. Emergency hole decorative cover, 23. Long through hole, 24. Lock groove, 25. Insertion hole, 26. Opening, 27. Arc groove, 28. Center groove, 29. Annular groove, 30. Circular locking hole, 31. Sleeve, 32. Insert rod, 33. Mounting cylinder. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0024] Embodiments of the present invention relate to a barn sliding door lock, such as Figures 1-6As shown, the device includes a lock magazine 3 mounted on the sliding door 1 and a latch assembly 4 mounted on one side of the door frame 2. The latch assembly 4 includes a latch body 5, a pin shaft 6, and an unlock button 14. The latch body 5 houses a sliding pin shaft 6 and a pin shaft compression spring 7 that assists in resetting the pin shaft 6. One end of the pin shaft 6 is fitted with an engagement button 8, and the other end of the pin shaft 6 houses a sliding unlock button 9 and a button compression spring 10 that assists in resetting the unlock button 9. The side wall of the unlock button 9 has a circular arc. The groove 27 has a central groove 28 in the middle, which is a V-shaped groove. The side wall of the pin shaft 6 has an annular groove 29, on which a retractable steel ball 13 is installed. One end of the steel ball 13 is inserted into the arc groove 27. The outer side of the latch body 5 is equipped with a left-right sliding unlock button 14 and a button spring 15 to assist the unlock button 14 in resetting. The unlock button 14 has a circular locking hole 30, which is fitted onto the outside of the pin shaft 6.

[0025] The lock vault 3 includes a lock vault base 19 and a lock vault body 20. The lock vault base 19 is fixed to the inside of the sliding door 1 by self-tapping screws 18. The lock vault body 20 is installed on the lock vault base 19. A lock groove 24 is provided on one side of the lock vault body 20. An insertion hole 25 communicating with the lock groove 24 is provided in the middle of the lock vault base 19.

[0026] The locking process requires the unlocking pin 9 to contact the bottom surface of the lock groove 24 at the center of the lock magazine 3. As the end face of the pin shaft 6 contacts the bottom surface of the lock groove 24 of the lock magazine 3, the end face of the unlocking pin 9 is pushed into the pin shaft 6, and the end face of the unlocking pin 9 is flush with the end face of the pin shaft 6. At this time, the steel ball 13 enters the center position of the arc groove 27 of the unlocking pin 9 (i.e., the center groove 28), and the unlocking button 14 is pushed out by the button spring 15 and inserted into the annular groove 29 of the pin shaft 6. The pin shaft 6 cannot be compressed and is pushed back by the pin shaft spring 7, thus completing the locking process. The bottom surface of the lock groove 24 can be a flat surface or a boss surface, so that the unlocking pin 9 can be flush with the end face of the pin shaft 6 in the initial state. The locking state can only be completed when the bolt 6 and the unlocking button 9 enter the lock chamber 3 and contact the bottom surface of the lock groove 24 at the same time; otherwise, the bolt 6 will be returned to its original position by the compressed bolt spring 7 to avoid the bolt 6 being in the extended state when the door is closed, which would cause the bolt 6 to collide with the lock chamber 3 and cause damage.

[0027] The latch body 5 has a through hole 17, and a cylindrical pin 11 is installed on the side of the pin shaft 6 and inserted into the through hole 17. Through the cooperation of the cylindrical pin 11 and the through hole 17, the pin shaft 6 slides back and forth along the inner wall of the latch body 5, and the pin shaft 6 and the inner wall of the latch body 5 will not rotate relative to each other.

[0028] The inner side of the latch body 5 is open and sealed by the decorative panel 16. This structure facilitates the adjustment of the internal components of the latch body 5 and simplifies the installation. The through hole 17 is opened on the decorative panel 16. When there is a problem with the latch body 5, the decorative panel 16 can be removed to clearly see the internal components of the latch body 5, which is convenient for inspection and maintenance.

[0029] The locking tongue body 5 is fitted with a sleeve 31 inside the pin shaft 6. One end of the pin shaft compression spring 7 presses against the sleeve 31, and the other end of the pin shaft compression spring 7 presses against the cylindrical pin 11.

[0030] The unlocking pin 9 has an elongated through hole 23 in the middle, and a knurled pin 12 is inserted into the side wall of the other end of the pin shaft 6. The knurled pin 12 is located in the elongated through hole 23. Through the cooperation of the knurled pin 12 and the elongated through hole 23, the unlocking pin 9 can slide back and forth along the inner wall of the pin shaft 6, and the unlocking pin 9 and the inner wall of the pin shaft 6 will not rotate relative to each other.

[0031] Installation only requires drilling a small emergency unlocking hole in the sliding door 1 using a common hand drill. An emergency hole decorative cover 22 is attached to or clipped into the hole on the outside of the sliding door 1. The lock magazine base 19 is fixed to the center of the hole on the inside of the sliding door 1, and then screwed into the lock magazine body 20. The emergency hole decorative cover 22 and the lock magazine base 19 are arranged opposite each other. The emergency hole decorative cover 22 has an opening 26 corresponding to the insertion hole 25. One end of the emergency unlocking key 21 has a insertion rod 32 that mates with the insertion hole 25. The insertion hole 25 in the center of the lock magazine body 20 is designed as a regular hexagonal through hole, ensuring that the emergency unlocking key 21 can pass through. An Allen wrench can be used to ensure that the lock magazine 3 and the lock magazine base 19 are securely fixed. This arrangement is not only aesthetically pleasing but also easy to install, convenient for DIY, and does not require professional grooving tools and equipment.

[0032] When locked, the insertion rod 32 of the emergency unlock key 21 passes through a small hole on the sliding door 1, then through the insertion hole 25 in the center of the lock magazine 3, and contacts the unlocking button 9. Pressing the unlocking button 9 causes the steel ball 13 to move from the central groove 28 along the inclined plane towards the outer diameter of the unlocking button 9. As the steel ball 13 moves outward, it pushes the unlocking button 14 out of the annular groove 29 of the pin shaft 6. The pin shaft 6 is then returned to its unlocked position by the compressed pin shaft spring 7. In an emergency, the door can be unlocked from the outside using the emergency unlock key 21 or the thin rod.

[0033] The latch assembly 4 is fixed inside the door frame 2, and the latch body 5 is fixed to one side of the door frame 2 by self-tapping screws 18. The pin shaft 6 passes through the hole inside the latch body 5 and is concentric with the lock magazine 3. The pin shaft compression spring 7 is always kept in a compressed state. Figure 3As shown, one end of the pin shaft compression spring 7 presses against the sleeve 31 to ensure that the sleeve 31 is in contact with the locking tongue body 5 and to prevent the steel ball 13 from falling off; the other end of the pin shaft compression spring 7 presses against the cylindrical pin 11 so that the cylindrical pin 11 drives the pin shaft 6 to always maintain a reset force.

[0034] One end of the cylindrical pin 11 is located in the waist-shaped groove of the latch body 5, and the other end is located in the through hole 17 of the decorative plate 16. It provides a limit for the movement of the pin shaft 6 while preventing the pin shaft 6 from rotating, thereby ensuring that the position of the steel ball hole on the pin shaft 6 is parallel to the running direction of the unlock button 14.

[0035] The latch body 5 has a mounting cavity on its side. The unlock button 14 is inserted into the mounting cavity. A mounting cylinder 33 is located on each of the upper and lower sides of the unlock button 14. Each mounting cylinder 33 contains a button spring 15. The button spring 15 keeps the unlock button 14 moving in the direction of disengaging from the latch body 5. The pin 6 passes through the circular locking hole 30 in the middle of the unlock button 14. Due to the force of the button spring 15, the circular locking hole 30 in the middle of the unlock button 14 is always in contact with the outer diameter of the pin 6. When the sliding door 1 moves to the closed position, i.e., the lock magazine 3 is aligned with the pin 6, the locking button 8 is pressed until the annular groove 29 of the pin 6 is aligned with the unlock button 14. At this time, the unlock button 14 is pushed out by the button spring 15, and the circular locking hole 30 of the unlock button 14 engages with the annular groove 29 of the pin 6, completing the locking state. Pressing the unlock button 14 disengages it from the annular groove 29 of the pin 6, and the pin 6 is ejected to the reset state by the restoring force of the pin spring 7. The entire operation is simple, with a satisfying locking and unlocking feel, ensuring proper locking.

[0036] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0037] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0038] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0039] The barn sliding door lock provided in this application has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A barn sliding door lock, comprising a lock magazine (3) disposed on the sliding door (1) and a latch assembly (4) disposed on one side of the door frame (2), characterized in that: The latch assembly (4) includes a latch body (5), a pin shaft (6), and an unlock button (14). The latch body (5) contains a sliding pin shaft (6) and a pin shaft spring (7) to assist in the reset of the pin shaft (6). One end of the pin shaft (6) is fitted with an locking button (8), and the other end contains a sliding unlocking pin (9) and a pin spring (10) to assist in the reset of the unlocking pin (9). A circular arc groove (27) is arranged on the side wall of the unlocking pin (9). 27) A central groove (28) is provided in the middle. A ring groove (29) is arranged on the side wall of the pin shaft (6). A retractable steel ball (13) is installed on the ring groove (29). One end of the steel ball (13) is inserted into the arc groove (27). A sliding unlock button (14) and a button spring (15) for resetting the unlock button (14) are installed on the outside of the lock tongue body (5). A circular locking hole (30) is provided on the unlock button (14). The circular locking hole (30) is fitted on the outside of the pin shaft (6).

2. A barn sliding door lock according to claim 1, characterized in that: The locking tongue body (5) has a through hole (17), and a cylindrical pin (11) is installed on the side of the pin shaft (6) to be inserted into the through hole (17).

3. A barn sliding door lock according to claim 2, characterized in that: The inner side of the latch body (5) is open and sealed by the decorative panel (16), and the through hole (17) is opened on the decorative panel (16).

4. A barn sliding door lock according to claim 2, characterized in that: The locking tongue body (5) is fitted with a sleeve (31) inside the pin shaft (6). One end of the pin shaft compression spring (7) presses against the sleeve (31), and the other end of the pin shaft compression spring (7) presses against the cylindrical pin (11).

5. A barn sliding door lock according to claim 1, characterized in that: The unlocking pin (9) has a long through hole (23) in the middle, and a knurled pin (12) is inserted into the side wall of the other end of the pin shaft (6). The knurled pin (12) is located in the long through hole (23).

6. A barn sliding door lock according to claim 1, characterized in that: The lock vault (3) includes a lock vault base (19) and a lock vault body (20). The lock vault base (19) is fixed to the inside of the sliding door (1) by self-tapping screws (18). The lock vault body (20) is installed on the lock vault base (19). A lock groove (24) is provided on one side of the lock vault body (20). An insertion hole (25) communicating with the lock groove (24) is provided in the middle of the lock vault base (19).

7. A barn sliding door lock according to claim 6, characterized in that: The aforementioned insertion hole (25) is a regular hexagonal through hole.

8. A barn sliding door lock according to claim 6, characterized in that: It also includes an emergency hole decorative cover (22) and an emergency unlocking key (21). The emergency hole decorative cover (22) is installed on the outside of the sliding door (1). The emergency hole decorative cover (22) is arranged opposite to the lock base (19). The emergency hole decorative cover (22) has an opening (26) corresponding to the insertion hole (25). One end of the emergency unlocking key (21) has a plug (32) that cooperates with the insertion hole (25).

9. A barn sliding door lock according to claim 1, characterized in that: The latch body (5) is fixed to one side of the door frame (2) by self-tapping screws (18).

10. A barn sliding door lock according to claim 1, characterized in that: The central groove (28) is a V-shaped groove.

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