阅读说明：本技术 一种便于装配的三杆式锁具 (Three-rod type lockset convenient to assemble ) 是由 区新本 刘国华 文剑 于 2021-09-16 设计创作，主要内容包括：本发明提供的三杆式锁具包括前锁体,前锁体包括第一伸缩片、第二伸缩片、保险杆与前卷筒,第一伸缩片设有第一定位部,保险杆穿过第一定位部的第一孔部,保险杆的第一端面抵接于第一孔部的第一孔壁；第二伸缩片设有第二定位部,保险杆穿过第二定位部的第二孔部,保险杆的第二端面抵接于第二孔部的第二孔壁。保险杆穿过第一孔部,保险杆的第一端面抵接于第一孔部的第一孔壁,保险杆穿过第二定位部的第二孔部,保险杆的第二端面抵接于第二孔部的第二孔壁,保险杆受夹于第一孔壁与第二孔壁而实现伸缩片与保险杆的相互定位,可通过自动化设备将保险杆直接从方管一侧插入前卷筒内,便于装配,实现装配工艺自动化,提高生产效率。(The invention provides a three-rod lock which comprises a front lock body, wherein the front lock body comprises a first telescopic piece, a second telescopic piece, a safety rod and a front winding drum, the first telescopic piece is provided with a first positioning part, the safety rod penetrates through a first hole part of the first positioning part, and a first end surface of the safety rod is abutted against a first hole wall of the first hole part; the second telescopic piece is provided with a second positioning part, the safety rod penetrates through a second hole part of the second positioning part, and a second end face of the safety rod abuts against a second hole wall of the second hole part. The safety rod penetrates through the first hole part, the first end face of the safety rod abuts against the first hole wall of the first hole part, the safety rod penetrates through the second hole part of the second positioning part, the second end face of the safety rod abuts against the second hole wall of the second hole part, the safety rod is clamped between the first hole wall and the second hole wall to achieve mutual positioning of the telescopic piece and the safety rod, the safety rod can be directly inserted into the front winding drum from one side of the square pipe through automatic equipment, assembly is facilitated, automation of an assembly process is achieved, and production efficiency is improved.)

1. A three-rod type lockset convenient for assembly comprises a front lock body, wherein the front lock body comprises a first telescopic piece, a second telescopic piece, a safety rod and a front winding drum, the first telescopic piece and the second telescopic piece are assembled on the front winding drum, and one part of the safety rod is inserted into a cylindrical cavity in the front winding drum;

the first telescopic piece and the second telescopic piece are both positioned between the first shoulder part and the second shoulder part of the bumper,

the first telescopic piece is provided with a first positioning part, the safety rod penetrates through a first hole part of the first positioning part, and a first end face of the safety rod abuts against a first hole wall of the first hole part;

the second telescopic piece is provided with a second positioning part, the safety rod penetrates through a second hole part of the second positioning part, and a second end face of the safety rod abuts against a second hole wall of the second hole part;

the first hole portion is communicated with the second hole portion, the first hole wall and the second hole wall are oppositely arranged along the radial direction of the cylindrical cavity, and the first hole portion, the second hole portion and the second hole portion are all located in the cylindrical cavity.

2. A three-bar lock of claim 1, wherein:

the first retractable sheet comprises a first sheet part and a second sheet part, and the first positioning part is positioned between the first sheet part and the second sheet part.

3. A three-bar lock of claim 2, wherein:

the second expansion piece comprises a third piece and a fourth piece, and the second positioning part is located between the third piece and the fourth piece.

4. A three-bar lock of claim 3, wherein:

the first piece portion and the third piece portion penetrate through a first hole of the cylindrical cavity, and the second piece portion and the fourth piece portion penetrate through a second hole of the cylindrical cavity.

5. A three-bar lock of claim 4, wherein:

the first piece abuts against the third piece.

6. A three bar lock of claim 5, wherein:

the second piece abuts against the fourth piece.

7. A three bar lock of any one of claims 1 to 6 which is easy to assemble, wherein:

the three-bar lock comprises a gasket, and the gasket is positioned in the cylindrical cavity.

8. A three-bar lock of claim 7, wherein:

the gasket is abutted against the side wall of the cylindrical cavity.

9. A three bar lock of claim 8, wherein:

the gasket is circular.

10. A three bar lock of claim 9, wherein:

the bumper penetrates through the gasket, and the first shoulder part of the bumper abuts against the end face of the gasket.

Technical Field

The invention belongs to the technical field of locks, and particularly relates to a three-rod type lock convenient to assemble.

Background

At present, in the traditional assembly process of the front lock body of the three-rod type lock, after a safety rod is inserted into a front winding drum from one side of a handle, the safety rod is pulled from one side of a square tube and simultaneously rotated to be clamped to a telescopic piece, and whether the safety rod is clamped in place or not needs to be judged manually when the safety rod is clamped with the telescopic piece due to the fact that the telescopic piece is not provided with a clamping structure adaptive to the safety rod, so that automatic assembly cannot be achieved, and production efficiency is reduced.

Disclosure of Invention

The invention mainly aims to provide a three-rod type lockset convenient for automatic assembly.

In order to achieve the main object, the three-bar lock provided by the invention comprises a front lock body, wherein the front lock body comprises a first telescopic piece, a second telescopic piece, a safety rod and a front winding drum, the first telescopic piece and the second telescopic piece are assembled on the front winding drum, a part of the safety rod is inserted into a cylindrical cavity in the front winding drum, the first telescopic piece and the second telescopic piece are both positioned between a first shoulder part and a second shoulder part of the safety rod, the first telescopic piece is provided with a first positioning part, the safety rod penetrates through a first hole part of the first positioning part, and a first end surface of the safety rod is abutted against a first hole wall of the first hole part; the second telescopic piece is provided with a second positioning part, the safety rod penetrates through a second hole part of the second positioning part, and a second end face of the safety rod abuts against a second hole wall of the second hole part; the first hole portion is communicated with the second hole portion, the first hole wall and the second hole wall are arranged oppositely along the radial direction of the cylindrical cavity, and the first hole portion, the second hole portion and the second hole wall are located in the cylindrical cavity.

According to the scheme, the safety rod penetrates through the first hole part, the first end face of the safety rod abuts against the first hole wall of the first hole part, the safety rod penetrates through the second hole part of the second positioning part, the second end face of the safety rod abuts against the second hole wall of the second hole part, the safety rod is clamped between the first hole wall and the second hole wall to achieve mutual positioning of the telescopic piece and the safety rod, the safety rod does not need to be pulled from one side of the square pipe and clamped to the telescopic piece after being inserted into the front winding drum from one side of the handle in the traditional assembly process, and then the safety rod is pulled from one side of the square pipe and simultaneously rotated to be clamped into the telescopic piece.

Preferably, the first retractable sheet comprises a first sheet part and a second sheet part, and the first positioning part is located between the first sheet part and the second sheet part.

Further, the second expansion piece comprises a third piece and a fourth piece, and the second positioning portion is located between the third piece and the fourth piece.

Furthermore, the first piece and the third piece pass through the first hole of the cylindrical cavity, and the second piece and the fourth piece pass through the second hole of the cylindrical cavity.

Further, the first sheet portion abuts against the third sheet portion.

Further, the second piece portion abuts against the fourth piece portion.

Furthermore, the three-rod lock comprises a gasket, and the gasket is positioned in the cylindrical cavity.

Further, the gasket is abutted against the side wall of the cylindrical cavity.

Further, the gasket is annular.

Furthermore, the bumper passes through the gasket, and the first shoulder part of the bumper abuts against the end face of the gasket.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.

FIG. 1 is a partial exploded view of a three bar lock according to an embodiment of the present invention.

Fig. 2 is a structural view of another partial structure of an embodiment of a three-bar type lock according to the present invention.

Fig. 3 is an exploded view of the first blade of an embodiment of a three bar lock of the present invention.

FIG. 4 is a partial block diagram of an embodiment of a three bar lock according to the present invention.

FIG. 5 is a partial cross-sectional view of a three bar lock embodiment of the present invention.

Fig. 6 is a partial structural cross-sectional view of a three-bar lock of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and fig. 2, the three-bar lock provided in this embodiment includes a front lock body 100, the front lock body 100 includes a first retractable plate 1, a second retractable plate 2, a safety lever 3 and a front winding drum 5, the first retractable plate 1 and the second retractable plate 2 are assembled on the front winding drum 5, a portion of the safety lever 3 is inserted into a cylindrical cavity 6 in the front winding drum 5, and the first retractable plate 1 and the second retractable plate 2 are both located between a first shoulder 7 and a second shoulder 8 of the safety lever 3.

The front lock body 100 of the three-rod type lock comprises a gasket 9, wherein the gasket 9 is positioned in the cylindrical cavity 6, and the gasket 9 abuts against the side wall of the cylindrical cavity 6.

The washer 9 is annular, the bumper 3 passes through the washer 9, and the first shoulder portion 7 of the bumper 3 abuts against the end surface of the washer 9.

Referring to fig. 1 to 4, the first retractable sheet 1 is provided with a first positioning portion 10, the safety lever 3 passes through a first hole portion 11 of the first positioning portion 10, a first end surface of the safety lever 3 abuts against a first hole wall 12 of the first hole portion 11, the first hole wall 12 includes at least two planes parallel to each other, and the first end surface of the safety lever 3 abuts against the two planes parallel to each other of the first hole wall 12.

The first stretch panel 1 includes a first panel 15 and a second panel 16, and the first positioning portion 10 is located between the first panel 15 and the second panel 16.

The second expansion piece 2 is provided with a second positioning part 17, the safety rod 3 passes through a second hole part 18 of the second positioning part 17, the second end surface of the safety rod 3 is abutted against a second hole wall of the second hole part 18, the second hole wall comprises at least two planes which are parallel to each other, and the second end surface of the safety rod 3 is abutted against the two planes which are parallel to each other of the second hole wall.

The first hole part 11 is communicated with the second hole part 18, the first hole wall 12 and the second hole wall are oppositely arranged along the radial direction of the cylindrical cavity 6, and the first hole part 11, the first hole wall 12, the second hole part 18 and the second hole wall are all positioned in the cylindrical cavity 6.

The second stretch panel 2 includes a third panel portion 19 and a fourth panel portion 20, and the second positioning portion 17 is located between the third panel portion 19 and the fourth panel portion 20.

Further, the first sheet portion 15 and the third sheet portion 19 both pass through the first hole of the cylindrical cavity 6, and the second sheet portion 16 and the fourth sheet portion 20 both pass through the second hole of the cylindrical cavity 6.

Further, the first piece 15 abuts against the third piece 19.

Further, the second piece 16 abuts against the fourth piece 20.

In the present embodiment, the first and second stretchable panels 1 and 2 have the same structure, the first positioning portions 10 and the second positioning portions 17 have the same structure, the first and second holes 11 and 18 have the same structure, the first hole wall 12 and the second hole wall have the same structure, the first sheet portion 15 and the fourth sheet portion 20 have the same structure, and the second sheet portion 16 and the third sheet portion 19 have the same structure.

Referring to fig. 1 to 6, the front lock body 100 includes a square tube 21, a handle 22, a support piece 24 and a top spring 25, the square tube 21 is sleeved on the outside of the safety rod 3, the end surface of the second shoulder portion 8 abuts against the end surface of the square tube 21 to position the square tube 21, the handle 22 is located on the outside of the front winding drum 5, one end of the top spring abuts against the support piece 24, the other end abuts against a gasket 9, and the gasket is clamped between the top spring 24 and the inner side wall of the cylindrical cavity.

The safety rod 3 passes through the first hole part 11, the first end face of the safety rod 3 abuts against the first hole wall 12 of the first hole part 11, the safety rod 3 passes through the second hole part 18 of the second positioning part 17, the second end face of the safety rod 3 abuts against the second hole wall of the second hole part 18, the safety rod 3 is clamped between the first hole wall 12 and the second hole wall to realize the mutual positioning of the telescopic piece and the safety rod 3, and then the square tube 21 can be assembled on the safety rod 3 without pulling the safety rod from one side of the square tube 21 and simultaneously rotating the safety rod to clamp the telescopic piece after the safety rod is inserted into the front winding drum from one side of the handle 22 in the traditional assembly process, therefore, accessible automation equipment inserts preceding reel 5 with bumper 3 directly from square pipe 21 one side in, the assembly of being convenient for is applicable to the assembly production that lock body 100 before automatic erection equipment carries out, realizes that assembly process is automatic, improves production efficiency.

Finally, it should be emphasized that the present invention is not limited to the above-described embodiments, but only the preferred embodiments of the invention have been described above, and the present invention is not limited to the above-described embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.