CN215443525U

CN215443525U - Latch bolt sliding connection structure and door lock

Info

Publication number: CN215443525U
Application number: CN202121183323.0U
Authority: CN
Inventors: 王长海; 黄克洲
Original assignee: Guangdong Ap Tenon Sci & Tech Co ltd
Current assignee: Guangdong Ap Tenon Sci & Tech Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2022-01-07
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses a sliding connection structure of a latch bolt, which comprises a lock body, a limiting device, a latch bolt and a connecting rod with a head end and a tail end, wherein the lock body is provided with a lock body; the connecting rod is connected with the lock body in a sliding manner, and the head end of the connecting rod is connected with the latch bolt; the limiting device is provided with a guide hole and a sliding block, the connecting rod slidably penetrates through the guide hole, and the limiting device abuts against the latch bolt; the lock body is provided with a guide groove which is arranged in parallel with the connecting rod, and the sliding block is connected with the guide groove in a sliding way; the limiting device is sleeved on the connecting rod through the guide hole and connected to the lock body through the sliding block and the guide groove in a sliding mode, the limiting device abuts against the inclined tongue, and the limiting device can limit the degree of freedom of the connecting rod to prevent the connecting rod from being bent and deformed in the normal direction. The utility model also provides a door lock which comprises the latch bolt sliding connection structure.

Description

Latch bolt sliding connection structure and door lock

Technical Field

The utility model relates to the field of door locks, in particular to a latch bolt sliding connection structure and a door lock.

Background

The latch bolt is one of important lock bolts of the intelligent door lock, the use rate of the latch bolt is higher than that of other lock bolts in the intelligent door lock, and the internal structure of the latch bolt is more easily deformed due to the fact that the latch bolt often collides with a door frame, particularly, a pull rod of the latch bolt is easily deformed in the normal direction of the movement of the latch bolt, so that the latch bolt is blocked, and the latch bolt is particularly characterized in that the latch bolt cannot be retracted into the lock body or cannot be ejected out of the lock body.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a latch bolt sliding connection structure and a door lock, so as to solve the problem that the conventional latch bolt pull rod is easy to deform in the normal direction of the movement of the latch bolt to cause the failure of the latch bolt.

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

a sliding connection structure of a latch bolt comprises a lock body, a limiting device, a latch bolt and a connecting rod with a head end and a tail end;

the connecting rod is slidably connected to the lock body, and the head end of the connecting rod is connected to the latch bolt; the limiting device is provided with a guide hole and a sliding block, the connecting rod slidably penetrates through the guide hole, and the limiting device abuts against the inclined tongue; the lock body is provided with a guide groove which is parallel to the connecting rod, and the sliding block is connected with the guide groove in a sliding mode.

In some optional embodiments, the lock further comprises a return elastic member, and two ends of the return elastic member respectively abut against the limiting device and the lock body.

In some alternative embodiments, the lock body includes a seat body and a guide device connected with each other, the connecting rod is slidably connected to the guide device, and the guide slot is disposed in the seat body.

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

In some optional embodiments, the lock body further includes a mounting seat detachably disposed on the seat body, the mounting seat has a U-shaped cross section, and the limiting device, the guiding device and the connecting rod are located in the mounting seat.

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 some optional embodiments, the number of the sliding blocks and the number of the guide grooves are two, one sliding block is correspondingly connected to one guide groove, and the two sliding blocks are respectively located on two sides of the limiting device.

In some optional embodiments, the mounting seat is provided with a yielding hole positioned on the axis of the connecting rod.

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

Compared with the prior art, the utility model has the beneficial effects that:

the limiting device is sleeved on the connecting rod through the guide hole and connected to the lock body through the sliding block and the guide groove in a sliding mode, the limiting device abuts against the inclined tongue, and the limiting device can limit the degree of freedom of the connecting rod to prevent the connecting rod from being bent and deformed in the normal direction.

Drawings

Fig. 1 is one of the schematic internal structural views of the sliding connection structure of the latch bolt of the utility model;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is one of the external structural diagrams of the sliding connection structure of the latch bolt of the utility model;

fig. 4 is a second external structural view of the latch tongue sliding connection structure of the utility model;

FIG. 5 is an enlarged schematic view at B in FIG. 3;

FIG. 6 is an enlarged schematic view at C of FIG. 4;

fig. 7 is a second schematic view of the internal structure of the latch tongue sliding connection structure of the present invention;

FIG. 8 is an enlarged schematic view at D of FIG. 7;

fig. 9 is a schematic structural view of a limiting device of the latch bolt sliding connection structure of the utility model;

in the figure:

10. a lock body; 11. mounting holes; 12. a guide groove; 13. a limiting hole; 14. a base body; 15. a mounting seat; 151. a hole of abdication; 20. a guide device; 21. a first guide member; 211. a screw hole; 22. a second guide member; 30. a latch bolt; 40. a connecting rod; 50. a locking member; 51. a connecting member; 52. a locking member; 60. a restoring elastic member; 70. a limiting device; 71. a guide hole; 72. a slide block.

Detailed Description

To facilitate an understanding of the utility model, the utility model 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 utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. 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 9, a latch bolt sliding connection structure of the present invention is schematically shown, and includes a lock body 10, a position limiting device 70, a latch bolt 30, a return elastic member 60, and a connecting rod 40.

The connecting rod 40 has a head end and a tail end, the connecting rod 40 is slidably connected to the lock body 10, the head end of the connecting rod 40 is connected to the oblique tongue 30, and the oblique tongue 30 can slide on the lock body 10 through the connection and guidance of the connecting rod 40.

Referring to fig. 2 and 9, the limiting device 70 is provided with a guide hole 71 and a slider 72, the connecting rod 40 is slidably inserted into the guide hole 71, the limiting device 70 abuts against the latch 30, correspondingly, the lock body 10 is provided with a guide groove 12 parallel to the connecting rod 40, and the slider 72 is slidably connected to the guide groove 12. When the latch bolt 30 is pressed by an external force to slide relative to the lock body 10, the limiting device 70 follows the movement of the latch bolt 30 along the guide groove 12, and meanwhile, the limiting device 70 is connected with the connecting rod 40 through the guide hole 71, and the limiting device 70 can effectively limit the degree of freedom of the connecting rod 40 to prevent the connecting rod 40 from bending and deforming in the normal direction. Wherein, the quantity of slider 72 and guide way 12 all is equipped with two, and a slider 72 corresponds and connects in a guide way 12, and two sliders 72 are located the both sides of stop device 70 respectively.

The two ends of the elastic return element 60 are respectively abutted against the position limiting device 70 and the lock body 10, so that the position limiting device 70 is always abutted against the latch bolt 30 under the elastic force of the elastic return element 60.

Referring to fig. 7, the lock body 10 includes a base 14 and a guide 20 connected to each other, the base 14 is provided with a mounting hole 11, a latch 30 can be retracted into the mounting hole 11 or extended out of the mounting hole 11, a connecting rod 40 is slidably connected to the guide 20, and a guide groove 12 is formed in the base 14. The guiding device 20 is slidably connected to the base 14, and when the guiding device 20 can freely slide relative to the base 14, the force is applied to draw the latch bolt 30 out of the base 14 along the axial direction of the connecting rod 40, so that the latch bolt 30 completely extends out of the mounting hole 11 of the lock body 10, and the lock assembling personnel can change the direction of the latch bolt 30. The base 14 is provided with a limit hole 13, the latch tongue sliding connection structure of the present invention further includes a locking member 50, as shown in fig. 3, fig. 4, fig. 5, fig. 6 and fig. 9, the locking member 50 includes a connecting member 51 and a locking member 52 connected to each other, one end of the connecting member 51 is connected to the locking member 52, the other end of the connecting member 51 passes through the limit hole 13 and is movably connected to the guide device 20, the connecting member 51 moves relative to the guide device 20 to enable the locking member 52 to move close to or away from the guide device 20, the locking member 52 is embedded in the limit hole 13 to lock the guide device 20 and the base 14, when an external force presses the latch tongue 30, the latch tongue 30 approaches to the guide device 20 under the connection and guidance of the connecting rod 40, that is, the latch tongue 30 retracts into the installation hole 11; when the latch 30 needs to be pulled out of the mounting hole 11 for reversing, the connecting member 51 is driven by applying force to move relative to the guide device 20 so as to force the locking member 52 and the connecting member 51 to exit from the limiting hole 13, the guide device 20 can slide relative to the seat body 14, and the latch 30 is pulled out of the mounting hole 11 by applying force for reversing. 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.

As shown in fig. 9, 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 each in a plate shape, 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.

As shown in fig. 8, the lock body 10 further includes a mounting seat 15 detachably disposed on the seat body 14, the mounting seat 15 has a U-shaped cross section, the position limiting device 70, the guiding device 20 and the connecting rod 40 are disposed in the mounting seat 15, and the mounting seat 15 can protect and accommodate the position limiting device 70, the guiding device 20 and the connecting rod 40.

The mounting seat 15 is provided with a yielding hole 151 located on the axis of the connecting rod 40, and when the latch bolt 30 moves close to the guide device 20, the connecting rod 40 can pass through the yielding hole 151, so that the mounting seat 15 is prevented from interfering with the connecting rod 40.

Example 2

Compared with the prior art, the utility model has the beneficial effects that:

the limiting device 70 is sleeved on the connecting rod 40 through the guide hole 71, the limiting device 70 is slidably connected to the lock body 10 through the sliding block 72 and the guide groove 12, the limiting device 70 abuts against the latch bolt 30, and the limiting device 70 can limit the degree of freedom of the connecting rod 40 to prevent the connecting rod 40 from bending and deforming in the normal direction.

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.

Claims

1. A sliding connection structure of a latch bolt is characterized by comprising a lock body, a limiting device, a latch bolt and a connecting rod with a head end and a tail end;

2. The latch bolt sliding connection according to claim 1, further comprising a return elastic member, wherein two ends of the return elastic member abut against the limiting device and the lock body, respectively.

3. A latch bolt sliding connection according to claim 1, wherein said lock body includes a seat body and a guide means connected to each other, said connecting rod being slidably connected to said guide means, said guide groove being provided in said seat body.

4. The latch tongue sliding connection structure according to claim 3, further comprising a locking member, wherein the guiding device is slidably connected to the base, the base is provided with a limiting hole, the locking member comprises a connecting member and a locking member connected to each other, the connecting member is movably connected to the guiding device, and the locking member is embedded in the limiting hole.

5. The latch bolt sliding connection structure according to claim 4, wherein the lock body further comprises a mounting seat detachably disposed on the seat body, the mounting seat has a U-shaped cross section, and the limiting device, the guiding device and the connecting rod are disposed in the mounting seat.

6. The latch tongue sliding connection according to claim 4, wherein said guide means comprises a first guide member and a second guide member which are perpendicular and connected, said connecting member is movably connected to said first guide member, and said connecting rod is slidably connected to said second guide member.

7. The latch tongue sliding connection according to claim 6, wherein a screw hole is formed on the first guide member, and an external thread is formed on the connecting member, and the external thread is connected to the screw hole in a fitting manner.

8. The latch bolt sliding connection structure according to claim 1, wherein there are two sliding blocks and two guiding grooves, one sliding block is correspondingly connected to one guiding groove, and the two sliding blocks are respectively located at two sides of the limiting device.

9. The latch tongue sliding connection according to claim 5, wherein the mounting seat is provided with a relief hole located on the axis of the connecting rod.

10. A door lock comprising the latch bolt sliding engagement structure according to any one of claims 1 to 9.