CN213269398U

CN213269398U - Safety door holder

Info

Publication number: CN213269398U
Application number: CN202021679098.5U
Authority: CN
Inventors: 钱自耀; 朱凤德; 傅迪荣; 勾敏
Original assignee: Ningbo Tongyi Metalwork Co ltd
Current assignee: Ningbo Tongyi Metalwork Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-05-25
Anticipated expiration: 2030-08-13

Abstract

The utility model discloses a safety door catch, which comprises a mounting seat, a stop block, a pressure spring and a steel ball, wherein the mounting seat comprises a mounting plate, a support column, a stop surface and a limiting plate, the limiting plate is arranged beside the support column, and the limiting plate comprises a limiting surface arranged at the top of the limiting plate; the stop block is rotatably connected with the support column, comprises a stop surface matched stop door end and a limit end matched with the limit surface, and is provided with a pressure spring and a steel ball, and the side face of the stop block is provided with a lock door positioning groove matched with the steel ball. The utility model discloses the safety knocker that obtains adopts the thicker backstop piece of broad to replace traditional smooth chain and annular member, is difficult for being destroyed, and is more safe to the knocker can integrative installation, and not only simple to operate still can not cause the damage to the door, and is clean and tidy pleasing to the eye after the installation.

Description

Safety door holder

Technical Field

The utility model relates to a knocker, especially a safety knocker.

Background

The existing door holder generally adopts an annular rod piece or a sliding chain sliding buckle type structure, the structure firstly carries out destructive installation on a door in installation, such as punching, screw nailing and the like, and secondly, the rod piece and the sliding chain are thin and are easily destroyed violently, so that the safety is not enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a need not destroy door and convenient to use safety's safety knocker in order to solve above-mentioned prior art not enough.

In order to achieve the purpose, the safety door catch comprises a mounting seat, a stop block, a pressure spring and a steel ball, wherein the mounting seat comprises a mounting plate, a support column, a stop surface and a limiting plate, the limiting plate is arranged beside the support column, and the limiting plate comprises a limiting surface arranged at the top of the limiting plate; the stop block is rotatably connected with the support column and comprises a stop end matched with the stop surface and a limit end matched with the limit surface, the support column is provided with a pressure spring and a steel ball, and the side surface of the stop block is provided with a door locking positioning groove matched with the steel ball; the range of the stop block rotating around the joint with the support column is bounded by the butting of the limiting end and the limiting surface and the butting of the stop door end and the stop surface; when the limit end is abutted against the limit surface, the stop block cannot rotate continuously, and the stop block is in a stop state at the moment; when the stop block rotates towards the other direction until the stop end abuts against the stop surface, the stop block can not rotate continuously, and the stop block is in a closed state.

In order to facilitate use, the side face of the stop block is provided with a door opening positioning groove matched with the steel ball, and when the stop block is in a closed state, the steel ball is pushed by the pressure spring to be pressed in the door opening positioning groove.

In order to guarantee the strength of the limiting end and make the door catch more reliable, the thickness of the limiting end is greater than that of the door stopping end, an included angle exists between the limiting end and the door stopping end, and the included angle is greater than 0 degree and less than 180 degrees.

For the convenience of manufacturing, installing and guaranteeing the stability of backstop piece, support column and limiting plate are erect on the mounting panel, the support column sets up in the limiting plate both sides, the face that ends sets up on the limiting plate.

In order to facilitate use, the mounting seat is provided with a groove for conveniently shifting the stop block.

In order to avoid the backstop piece to cause the damage to knocker self and door, it all is equipped with the elastic cushion block on door blocking end and the spacing end.

The utility model discloses the safety knocker that obtains adopts the thicker backstop piece of broad to replace traditional smooth chain and annular member, is difficult for being destroyed, and is more safe to the knocker can integrative installation, and not only simple to operate still can not cause the damage to the door, and is clean and tidy pleasing to the eye after the installation.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the safety door latch of the present invention;

FIG. 2 is a side view of embodiment 1;

FIG. 3 is a sectional view of a stopper in accordance with embodiment 1;

fig. 4 is a schematic structural view of embodiment 2 of the safety door latch of the present invention;

FIG. 5 is a sectional view A-A of FIG. 4;

figure 6 is an exploded view of embodiment 3 of the safety door latch of the present invention;

FIG. 7 is an exploded view in another direction of example 3.

In the figure: the locking device comprises a mounting seat 1, a stop block 2, a pressure spring 3, a steel ball 4, an elastic pin 5, a set screw 6, an elastic cushion block 7, a mounting plate 10, a support column 11, a limiting plate 12, a groove 13, a door stopping end 20, a limiting end 21, a door locking positioning groove 22, a door opening positioning groove 23, a stop surface 100, a through hole 101 and a limiting surface 120.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1:

as shown in fig. 1 and 2, the safety door latch described in this embodiment includes an installation seat 1, a stop block 2, a pressure spring 3, and a steel ball 4, where the installation seat 1 includes an installation plate 10, a support column 11, a stop surface 100, and a limit plate 12, the limit plate 12 is disposed beside the support column 11, and the limit plate 12 includes a limit surface 120 disposed at the top thereof; the stop block 2 is rotatably connected with the support column 11, the stop block 2 comprises a stop face 100 matched with a stop door end 20 and a limit end 21 matched with a limit face 120, the support column 11 is provided with a pressure spring 3 and a steel ball 4, and as shown in fig. 3, the side face of the stop block 2 is provided with a door locking positioning groove 22 matched with the steel ball 4.

In this embodiment, as shown in fig. 2, the mounting plate 10, the supporting column 11 and the limiting plate 12 are arranged in parallel, the supporting column 11 is arranged in the middle of the mounting seat 1, the stop surface 100 is arranged on the front surface of the limiting plate 12, and the stop block 2 is u-shaped when viewed; the mounting plate 10 is provided with a through hole 101 for connecting a screw; in addition, in the present embodiment, the elastic pin 5 is used to connect the supporting column 11 and the stopper 2.

In the actual working process, the safety door catch is arranged at the door edge, when a door needs to be locked, the stop block 2 is turned to a stop state, the steel ball 4 is pressed on the door locking positioning groove 22 on the side surface of the stop block 2 under the action of the pressure spring 3, and meanwhile, the limit end 21 of the stop block 2 is in contact with the limit surface 120; when a person opens the door, the door touches the door stopping end 20, so that the stopping block 2 has a tendency of rotating around the joint of the stopping block 2 and the mounting seat 1, however, the limiting surface 120 supports against the limiting end 21 of the stopping block 2, and the pressure applied to the door stopping end 20 when the door is opened is balanced through the lever action, so that the stopping block 2 is prevented from rotating, and the door stopping end 20 of the stopping block 2 stops the door, so that the door cannot be further opened; when the door needs to be moved in and out, the stop block 2 is pressed to be in a closed state, so that the opening and closing rotation of the door is not interfered by the stop block 2, and the door can be freely opened and closed at the moment.

The safety door catch provided by the embodiment adopts the relatively thick stop block 2 to replace the traditional slide chain and the annular rod piece, is not easy to damage and is safer, and the door catch can be integrally installed, so that the safety door catch is convenient to install, cannot damage a door, and is neat and attractive after installation.

Example 2:

the safety door latch described in this embodiment, as shown in fig. 4 and 5, in addition to the features described in embodiment 1, for convenience of use, the side surface of the stop block 2 is provided with a door opening positioning slot 23 matched with the steel ball 4, and when the stop block 2 is in the closed state, the steel ball 4 is pushed by the pressure spring 3 to press down in the door opening positioning slot 23.

In this embodiment, as shown in fig. 4, the supporting seat is disposed on one side of the mounting seat 1, the stop surface 100 is disposed on the front surface of the limiting plate 12, and the stop block 2 is rectangular when viewed from the front.

The safety door catch provided by the embodiment positions the closing state of the stop block 2 by arranging the door opening positioning groove 23, and avoids the problem that the normal door opening and closing is blocked due to mistaken opening of the stop block 2.

Example 3:

the safety door latch described in this embodiment is different from embodiment 2 in that, as shown in fig. 6 and 7, in order to ensure the strength of the limiting end 21 and make the door latch more reliable, the thickness of the limiting end 21 is greater than that of the door stop end 20, and an included angle exists between the limiting end 21 and the door stop end 20, where the included angle is greater than 0 degree and less than 180 degrees.

In order to facilitate manufacturing and installation and ensure stability of the stopper block 2, as shown in fig. 6 and 7, the supporting column 11 and the limiting plate 12 are erected on the mounting plate 10, the supporting column 11 is arranged on two sides of the limiting plate 12, and the stop surface 100 is arranged on the limiting plate 12.

In this embodiment, the supporting seat sets up the both sides at mount pad 1, it is positive at limiting plate 12 to end a setting 100, and limiting plate 12 sets up between two support columns 11, uses and installs fixedly with 11 screw-thread fit's of support column holding screw 6 to pressure spring 3, realizes the regulation to 3 elasticity of pressure spring to control 2 pivoted difficult and easy degrees of backstop piece.

It should be understood that the angles between the supporting pillar 11, the limiting plate 12 and the mounting plate 10 are for adapting the safety door latch to different installation environments, and the cases where the supporting pillar 11 and the limiting plate 12 are parallel to the mounting plate 10 and the cases where the supporting pillar 11 and the limiting plate 12 are perpendicular to the mounting plate 10 are given in

embodiments

1 and 3, respectively, however, the angles between the supporting pillar 11 and the limiting plate 12 and the mounting plate 10 may be acute or obtuse according to different installation environments.

For convenience of use, as shown in fig. 6, the mounting seat 1 is provided with a groove 13 for facilitating shifting of the stop block 2.

In order to avoid the damage of the door latch itself and the door caused by the stop block 2, as shown in fig. 7, the door stop end 20 and the limit end 21 are both provided with elastic cushion blocks 7.

The safety door holder that this embodiment provided has further improved the reliability and the easy operation nature of door holder, simultaneously through addding elastic cushion 7, avoids the door holder to damage the door, has improved and has used experience.

Claims

1. A safety door catch comprises a mounting seat (1), a stop block (2), a pressure spring (3) and a steel ball (4), and is characterized in that the mounting seat (1) comprises a mounting plate (10), a support column (11), a stop surface (100) and a limiting plate (12), the limiting plate (12) is arranged beside the support column (11), and the limiting plate (12) comprises a limiting surface (120) arranged at the top of the limiting plate; backstop piece (2) are connected with support column (11) rotation, backstop piece (2) including with end position face (100) cooperation stop gate end (20) and be used for with spacing face (120) complex spacing end (21), be equipped with pressure spring (3) and steel ball (4) on support column (11), backstop piece (2) side be equipped with steel ball (4) complex lock gate constant head tank (22).

2. A security door hasp according to claim 1 wherein said stop block (2) is provided with a door opening positioning slot (23) at its side for cooperating with said steel ball (4).

3. The safety door latch according to claim 1 or 2, wherein the thickness of the limiting end (21) is greater than that of the door stopping end (20), and an included angle is formed between the limiting end (21) and the door stopping end (20), and the included angle is greater than 0 degree and less than 180 degrees.

4. A security door hasp according to claim 1 or claim 2 wherein said support post (11) and said stop plate (12) are erected on the mounting plate (10), said support post (11) being disposed on either side of said stop plate (12), said stop surface (100) being disposed on said stop plate (12).

5. A security door hasp according to claim 3 wherein said support post (11) and said stop plate (12) are erected on said mounting plate (10), said support post (11) being disposed on both sides of said stop plate (12), said stop surface (100) being disposed on said stop plate (12).

6. A safety door hasp according to claim 1 or 2, wherein said mounting base (1) is provided with a recess (13) for facilitating the toggling of said stop block (2).

7. A safety door hasp according to claim 5, wherein said mounting base (1) is provided with a recess (13) for facilitating the toggling of said stop block (2).

8. A security door latch according to claim 1 or 2, wherein the door stop end (20) and the stop end (21) are provided with resilient pads (7).

9. The safety door latch according to claim 7, wherein the door stop end (20) and the position limiting end (21) are provided with elastic cushion blocks (7).