阅读说明：本技术 斜舌结构及门锁 (Latch bolt structure and door lock ) 是由 王长海 黄克洲 于 2021-05-28 设计创作，主要内容包括：本发明公开了一种斜舌结构,包括斜舌、连接杆、导向装置和锁体；连接杆具有首端和尾端,连接杆可滑动地连接于导向装置,连接杆的首端连接于斜舌；导向装置可滑动地连接于锁体,且导向装置与锁体的相对滑动方向平行于连接杆；锁体上开设有位于连接杆的轴线的安装孔,斜舌与安装孔的孔壁之间设有空隙,斜舌在导向装置朝安装孔运动时穿出并远离安装孔；斜舌与安装孔的孔壁之间设有空隙,斜舌不仅能够收容于安装孔,还能够从安装孔中完全抽出,即斜舌在导向装置朝安装孔运动时穿出并远离安装孔,以便装锁人员对斜舌进行维修或换向操作,且由于该斜舌省去了现有的限位凸块,因此在斜舌复位时不会产生限位凸块与锁体撞击产生的噪音。(The invention discloses a latch bolt structure, which comprises a latch bolt, a connecting rod, a guide device and a lock body; the connecting rod is provided with a head end and a tail end, the connecting rod is connected to the guide device in a sliding mode, and the head end of the connecting rod is connected to the oblique tongue; the guide device is connected with the lock body in a sliding way, and the relative sliding direction of the guide device and the lock body is parallel to the connecting rod; the lock body is provided with a mounting hole positioned on the axis of the connecting rod, a gap is arranged between the latch bolt and the wall of the mounting hole, and the latch bolt penetrates out of and is far away from the mounting hole when the guide device moves towards the mounting hole; the oblique tongue can be accommodated in the mounting hole and can be completely drawn out from the mounting hole, namely the oblique tongue penetrates out of the mounting hole when the guide device moves towards the mounting hole and is far away from the mounting hole, so that a lock installing person can maintain or change the direction of the oblique tongue, and the existing limiting bump is omitted, so that noise generated by collision between the limiting bump and the lock body cannot be generated when the oblique tongue is reset.)

1. A latch bolt structure is characterized by comprising a latch bolt, a connecting rod, a guide device and a lock body;

the connecting rod is provided with a head end and a tail end, the connecting rod is connected to the guide device in a sliding mode, and the head end of the connecting rod is connected to the oblique tongue; the guide device is connected to the lock body in a sliding mode, and the relative sliding direction of the guide device and the lock body is parallel to the connecting rod; the lock body is provided with a mounting hole which is positioned on the axis of the connecting rod, a gap is arranged between the latch bolt and the hole wall of the mounting hole, and the latch bolt penetrates out of and is far away from the mounting hole when the guide device moves towards the mounting hole.

2. The latch bolt structure according to claim 1, further comprising a stop device connected to the lock body, wherein the stop device is provided with a guide hole coaxially disposed with the connecting rod, and the connecting rod is slidably disposed through the guide hole.

3. The latch bolt structure according to claim 1, further comprising a buffering elastic member, wherein both ends of the buffering elastic member abut against the tail end of the connecting rod and the guide device, respectively.

4. The latch bolt structure according to claim 3, wherein the tail end of the connecting rod is provided with a limiting ring extending towards the radial outer side of the connecting rod, and the buffering elastic member abuts against the end surface of the limiting ring.

5. The latch bolt structure according to claim 4, wherein the guide device is provided with a connecting hole, and the connecting rod is slidably inserted through the connecting hole.

6. The latch bolt structure according to claim 5, wherein the outer diameter of the retainer ring is larger than the diameter of the connecting hole.

7. The latch bolt structure according to claim 1, further comprising a locking member, wherein the lock body is provided with a limiting hole, the locking member comprises a connecting member and a locking member which are connected, the connecting member is movably connected to the guiding device, and the locking member is embedded in the limiting hole.

8. The latch bolt construction of claim 7, wherein the guide means comprises first and second perpendicular and connected guide members, the connecting member being movably connected to the first guide member, and the connecting rod being slidably connected to the second guide member.

9. The latch bolt structure according to claim 8, wherein the first guide member is provided with a threaded hole, and the connecting member is provided with an external thread, and the external thread is connected to the threaded hole in a fitting manner.

10. A door lock including a latch bolt construction according to any one of claims 1 to 9.

Technical Field

The invention relates to the field of door locks, in particular to a latch bolt structure and a door lock.

Background

At present, noise generated when a door lock body is opened and closed mainly comes from the reset of an oblique bolt, specifically, a limit bump is arranged on the side edge of the oblique bolt and used for abutting against the inner wall of the lock body after the oblique bolt is reset, for example, patent CN2661843Y discloses a bidirectional lock bolt, a back bump is arranged on the lock bolt, and the flat side surface of the back bump on the lock bolt abuts against the inner side surface of the side panel of the door lock. However, the rear projection may generate a loud noise when it collides with the door lock side panel after the latch bolt is reset. Meanwhile, when the oblique tongue with the shape similar to the limiting bump is required to be reversed, the oblique tongue cannot be directly pulled out from the through hole of the side panel of the door lock because the oblique tongue is provided with the limiting bump, and then the lock body needs to be disassembled to expose the internal structure of the lock body, so that a lock installing person can disassemble and reverse the oblique tongue, and the reversing operation of the oblique tongue is complicated.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a latch bolt structure and a door lock, so as to solve the problems that the limit bump of the existing latch bolt collides with the lock body when the latch bolt is reset to generate noise and the reversing operation of the latch bolt is complex.

The purpose of the invention is realized by adopting the following technical scheme:

a latch bolt structure comprises a latch bolt, a connecting rod, a guide device and a lock body;

the connecting rod is provided with a head end and a tail end, the connecting rod is connected to the guide device in a sliding mode, and the head end of the connecting rod is connected to the oblique tongue; the guide device is connected to the lock body in a sliding mode, and the relative sliding direction of the guide device and the lock body is parallel to the connecting rod; the lock body is provided with a mounting hole which is positioned on the axis of the connecting rod, a gap is arranged between the latch bolt and the hole wall of the mounting hole, and the latch bolt penetrates out of and is far away from the mounting hole when the guide device moves towards the mounting hole.

In some optional embodiments, the lock further comprises a limiting device connected to the lock body, the limiting device is provided with a guide hole coaxially arranged with the connecting rod, and the connecting rod is slidably arranged through the guide hole.

In some optional embodiments, the device further comprises a buffering elastic member, and two ends of the buffering elastic member respectively abut against the tail end of the connecting rod and the guide device.

In some optional embodiments, the tail end of the connecting rod is provided with a limiting ring extending towards the radial outer side of the connecting rod, and the buffering elastic piece abuts against the end face of the limiting ring.

In some optional embodiments, the guide device is provided with a connecting hole, and the connecting rod is slidably inserted through the connecting hole.

In some optional embodiments, the outer diameter of the stop collar is larger than the bore diameter of the connection hole.

In some optional embodiments, the lock further comprises a locking member, the lock body is provided with a limiting hole, the locking member comprises a connecting member and a locking member which are connected, the connecting member is movably connected to the guide device, and the locking member is embedded in the limiting hole.

In some optional embodiments, the guiding device comprises a first guiding member and a second guiding member which are perpendicular and connected, the connecting member is movably connected to the first guiding member, and the connecting rod is slidably connected to the second guiding member.

In some optional embodiments, a screw hole is formed on the first guide member, and an external thread is formed on the connecting member, wherein the external thread is connected with the screw hole in a matching manner.

In order to solve the same technical problem, the invention also provides a door lock, which comprises the latch bolt structure.

Compared with the prior art, the invention has the beneficial effects that:

the oblique tongue can be accommodated in the mounting hole and can be completely drawn out from the mounting hole, namely the oblique tongue penetrates out of the mounting hole when the guide device moves towards the mounting hole and is far away from the mounting hole, so that a lock installing person can maintain or change the direction of the oblique tongue, and the existing limiting bump is omitted, so that noise generated by collision between the limiting bump and the lock body cannot be generated when the oblique tongue is reset.

Drawings

FIG. 1 is one of the overall structural schematic diagrams of the latch tongue structure of the invention;

FIG. 2 is a second schematic view of the latch tongue structure according to the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 1;

FIG. 4 is an enlarged schematic view at B of FIG. 2;

FIG. 5 is a schematic view of the internal structure of the inventive skew tongue structure;

FIG. 6 is an enlarged schematic view at C of FIG. 5;

FIG. 7 is a schematic structural view of a limiting device of the latch bolt structure of the present invention;

in the figure:

10. a lock body; 11. mounting holes; 12. a limiting hole; 20. a guide device; 21. a first guide member; 211. a screw hole; 22. a second guide member; 23. connecting holes; 30. a latch bolt; 40. a connecting rod; 41. a limiting ring; 50. a locking member; 51. a connecting member; 52. a locking member; 60. a buffer elastic member; 70. a limiting device; 71. and (4) a guide hole.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 to 7, a latch bolt structure of the present invention is schematically shown, including a latch bolt 30, a connecting rod 40, a guide 20, a buffering elastic member 60, and a lock body 10.

The connecting rod 40 has a head end and a tail end, the connecting rod 40 is slidably connected to the guide 20, the head end of the connecting rod 40 is connected to the latch tongue 30, and the latch tongue 30 can move toward or away from the guide 20 along the axial direction of the connecting rod 40 by the connection and guidance of the connecting rod 40.

The guide device 20 is slidably connected to the lock body 10, the relative sliding direction between the guide device 20 and the lock body 10 is parallel to the connecting rod 40, the lock body 10 is provided with a mounting hole 11 located on the axis of the connecting rod 40, a gap is provided between the latch 30 and the wall of the mounting hole 11, and the latch 30 penetrates out of and is far away from the mounting hole 11 when the guide device 20 moves towards the mounting hole 11. When the guiding device 20 can freely slide relative to the lock body 10, a force is applied to draw the oblique tongue 30 out of the lock body 10 along the axial direction of the connecting rod 40, so that the oblique tongue 30 completely extends out of the mounting hole 11 of the lock body 10, and the oblique tongue 30 can be detached, repaired or reversed by a lock assembling personnel. Moreover, since the latch bolt 30 omits the conventional limit bump, the noise generated by the bump between the limit bump and the lock body 10 is not generated when the latch bolt 30 is reset.

The two ends of the buffering elastic part 60 are respectively abutted to the tail end of the connecting rod 40 and the guide device 20, when the latch bolt 30 is extruded by external force and is contracted into the mounting hole 11, and after the external force is cancelled, the tail end of the connecting rod 40 is quickly close to the guide device 20 to reset, the buffering elastic part 60 can buffer the movement of the connecting rod 40, and the tail end of the connecting rod 40 is prevented from impacting the guide device 20 and generating noise.

As shown in fig. 7, in order to prevent the connecting rod 40 from swinging in its normal direction, the latch bolt structure of the present invention further includes a stopper 70 connected to the lock body 10, the stopper 70 being provided with a guide hole 71 coaxially disposed with the connecting rod 40, and the connecting rod 40 being slidably inserted through the guide hole 71.

Specifically, the tail end of the connecting rod 40 is provided with a limiting ring 41 extending towards the radial outer side thereof, the buffering elastic member 60 abuts against the end surface of the limiting ring 41, and the limiting ring 41 is used for connecting the buffering elastic member 60 with the tail end of the connecting rod 40. The guide device 20 is provided with a connecting hole 23, and the connecting rod 40 is slidably inserted through the connecting hole 23, i.e. the guide device 20 is located between the head end and the tail end of the connecting rod 40. The outer diameter of the retainer ring 41 is larger than the bore diameter of the connection hole 23 to prevent the tail end of the connection rod 40 from being unintentionally separated from the connection hole 23.

In order to prevent the latch bolt 30 from being accidentally separated from the mounting hole 11 when the consumer normally uses the door lock, as shown in fig. 3, 4 and 7, a locking mechanism for preventing the guide device 20 and the lock body 10 from sliding relatively is arranged between the guide device 20 and the lock body 10, when the lock installer reverses the latch bolt 30, the locking mechanism is unlocked to allow the guide device 20 and the lock body 10 to slide relatively, and when the lock installer finishes reversing the latch bolt 30, the locking mechanism is locked to prevent the guide device 20 and the lock body 10 from sliding relatively.

Specifically, the lock body 10 is provided with a limiting hole 12, the latch bolt structure of the invention further comprises a locking part 50, the locking part 50 comprises a connecting piece 51 and a locking piece 52 which are connected, one end of the connecting piece 51 is connected to the locking piece 52, the other end of the connecting piece 51 passes through the limiting hole 12 and is movably connected to the guide device 20, the connecting piece 51 moves relative to the guide device 20 to enable the locking piece 52 to move close to or away from the guide device 20, the locking piece 52 is embedded in the limiting hole 12 to lock the guide device 20 and the lock body 10, when an external force presses the latch bolt 30, the latch bolt 30 is close to the guide device 20 under the connection and the guide of the connecting rod 40, namely, the latch bolt 30 is contracted into the mounting hole 11; when the oblique tongue 30 needs to be drawn out of the mounting hole 11 for reversing, the connecting member 51 is driven to move relative to the guide device 20 by applying force to force the locking member 52 and the connecting member 51 to exit from the limiting hole 12, the guide device 20 can slide relative to the lock body 10, and the oblique tongue 30 is drawn out of the mounting hole 11 by applying force to reverse. Further, the locking member 50 may be preferably a screw, wherein the connecting member 51 is a threaded section of the screw, and the locking member 52 is a head of the screw.

The guide device 20 includes a first guide 21 and a second guide 22 which are perpendicular to each other and connected to each other, the first guide 21 and the second guide 22 are both plate-shaped, a connecting member 51 is movably connected to the first guide 21, and a connecting rod 40 is slidably connected to the second guide 22. The first guide member 21 is provided with a screw hole 211, the connecting member 51 is provided with an external thread, and the external thread is connected to the screw hole 211 in a matching manner.

Example 2

In order to solve the same technical problem, the invention also provides a door lock, which comprises the latch bolt structure.

Compared with the prior art, the invention has the beneficial effects that:

a gap is arranged between the latch bolt 30 and the wall of the mounting hole 11, the latch bolt 30 can be accommodated in the mounting hole 11 and can be completely drawn out from the mounting hole 11, that is, the latch bolt 30 penetrates out of the mounting hole 11 when the guide device 20 moves towards the mounting hole 11 and is far away from the mounting hole 11, so that a lock installing person can maintain or change direction of the latch bolt 30, and the existing limit bump is omitted from the latch bolt 30, so that the noise generated by the collision between the limit bump and the lock body 10 is avoided when the latch bolt 30 is reset.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.