A magnetic door catch

Abstract

This utility model discloses a magnetic door catcher, including a door catcher mounted on a door and a floor catcher mounted on the ground. The door catcher contains a sliding rod and an elastic element for controlling the rod's return to its original position. The bottom end of the sliding rod has an adsorption element that can be attracted by a magnet. The floor catcher includes a fixed base, a base plate, and a first magnet. The base plate and the fixed base are fixedly connected. The base plate is made of a soft magnetic material, and the first magnet is adsorbed onto the base plate. This utility model enhances the magnetic force of the first magnet's adsorption surface by providing a soft magnetic material base plate on the back side of the first magnet's adsorption surface, thereby improving the reliability of the door catcher's positioning.

Description

Technical Field

[0001] This utility model relates to a door catcher, and more particularly to a magnetic door catcher. Background Technology

[0002] A door catcher is a device used to position an open door. A magnetic door catcher is a door catcher that is attracted by magnetism. For example, a magnetic door catcher disclosed in publication number CN217652542U includes a door catcher for mounting on a door and a ground catcher for limiting the movement of the door catcher. The ground catcher includes an adsorption element, and the door catcher has a movable element for engaging with the adsorption element. The adsorption element includes at least a magnet. The door catcher includes a housing, and the movable element includes a limiting post slidably disposed within the housing. The magnet is used to attract the limiting post. It is known that the reliability of magnetic door catcher positioning is positively correlated with the magnetic force of the magnet. How to enhance the magnetic force to improve the reliability of door catcher positioning is the problem this application aims to solve. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a magnetic door catch.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a magnetic door catcher, including a door catcher mounted on a door and a floor catcher mounted on the ground. The door catcher has a movable rod that slides up and down and an elastic element for controlling the resetting of the movable rod. The bottom end of the movable rod has an adsorption element that can be attracted by a magnet. The floor catcher includes a fixed base, a base plate, and a first magnet. The base plate and the fixed base are fixedly connected. The base plate is made of a soft magnetic material, and the first magnet is attracted to the base plate.

[0005] The mounting base is provided with a mounting groove for accommodating the base plate and the first magnet, and the base plate is provided with a surrounding edge that fits tightly with the mounting groove.

[0006] The mounting groove has a notch on its side for easy removal of the base plate.

[0007] The upper surface of the first magnet is provided with a first buffer pad.

[0008] The adsorption element includes a second magnet.

[0009] A pad is provided on the end face of the second magnet away from the ground, and the pad is made of a soft magnetic material.

[0010] The movable rod has a first through hole in the vertical direction, a boss at the lower end of the first through hole, and a plug inside the first through hole. The plug is inserted from the upper end of the first through hole and makes the adsorption component abut against the boss.

[0011] The lower end of the adsorption element is provided with a second buffer pad.

[0012] The beneficial effects of this utility model are as follows: By setting a soft magnetic material base plate on the back of the first magnet adsorption surface, this utility model provides a low magnetic resistance path, which makes the magnetic lines of force more concentrated and reduces the diffusion of magnetic lines of force, thereby enhancing the magnetic force of the first magnet adsorption surface and improving the reliability of the door suction positioning. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0016] Figure 4 This is an exploded view of the present invention. Detailed Implementation

[0017] like Figures 1-4 As shown, a magnetic door catcher includes a door catcher 10 mounted on a door and a floor catcher 20 mounted on the ground. The door catcher 10 has a sliding rod 11 and an elastic element 12 for controlling the rod 11's reset. The bottom end of the rod 11 has an adsorption element 13, which can be attracted by a magnet; that is, the adsorption element 13 can be a permanent magnet or a soft magnetic material. The floor catcher 20 includes a fixed base 21, a base plate 22, and a first magnet 23. The base plate 22 and the fixed base 21 are fixedly connected. The base plate 22 is made of a soft magnetic material, and the first magnet 23 is adsorbed onto the base plate 22. Soft magnetic materials refer to magnetic materials with low coercivity and high permeability. Soft magnetic materials are easily magnetized and easily demagnetized. Common soft magnetic materials include pure iron, low-carbon steel, nickel-iron alloys, and certain ferrites. In this embodiment, the door catch 10 includes a housing 14, with an upper and lower opening cavity 15 inside the housing 14. An end cap 16 is provided at the upper end of the housing 14. A movable rod 11 slides up and down within the cavity 15. An annular ring 111 is provided at the upper end of the movable rod 11. The elastic element 12 is a spring sleeved on the movable rod 11, with its upper end abutting against the annular ring 111 and its lower end abutting against the housing 14. The fixing base 21 and the door catch 10 can be connected to the ground and door panel respectively by screws, adhesive, or other methods.

[0018] The mounting base 21 has a mounting groove 211 for accommodating the base plate 22 and the first magnet 23. The base plate 22 has a surrounding edge 221 that fits tightly with the mounting groove 211. This tight fit eliminates the need for connections between components, making installation convenient and cost-effective. The base plate 22 can also be connected to the mounting base 21 using fasteners or other methods. During installation, first connect the mounting base 21 to the ground, then press the base plate 22 into the mounting base 21, and finally place the magnet on the base plate 22.

[0019] The mounting groove 211 has a recess 212 on its side for easy removal of the base plate 22. When removal is required, the base plate 22 can be pried out by using a flathead screwdriver or other tools, pressing against the outside of the edge 221 of the base plate 22 and prying upwards.

[0020] The upper surface of the first magnet 23 is provided with a first buffer pad 24. The lower end of the adsorption member 13 is provided with a second buffer pad 17. In this embodiment, the first buffer pad 24 and the first magnet 23, and the second buffer pad 17 and the adsorption member 13 are all connected by adhesive. The first buffer pad 24 and the second buffer pad 17 both play a shock-absorbing and buffering role when the first magnet 23 and the adsorption member 13 collide.

[0021] The adsorption component 13 includes a second magnet 131, and a pad 18 is provided on the end face of the second magnet 131 away from the ground. The pad 18 is made of a soft magnetic material. This structure further enhances the magnetic force between the first magnet 23 and the adsorption component 13, thereby improving the reliability of the door catch positioning.

[0022] The movable rod 11 has a first vertical through hole 112, and a boss 113 is provided at the lower end of the first through hole 112. An adsorption member 13 is disposed at the lower end of the first through hole 112. A plug 19 is provided inside the first through hole 112, and the plug 19 is inserted from the upper end of the first through hole 112, causing the adsorption member 13 to abut against the boss 113. In this embodiment, the plug 19 and the first through hole 112 are tightly fitted. The plug 19 and the first through hole 112 can also be threaded together.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Simple modifications and substitutions made by those skilled in the art without departing from the spirit and scope of this utility model are within its protection scope.

Claims

1. A magnetic door catcher, comprising a door catcher mounted on a door and a floor catcher mounted on the ground, wherein the door catcher has a movable rod that slides up and down and an elastic element for controlling the movable rod to return to its original position, and an adsorption element is provided at the bottom end of the movable rod, the adsorption element being able to be attracted by a magnet, characterized in that, The ground suction component includes a fixed base, a base plate, and a first magnet. The base plate and the fixed base are fixedly connected. The base plate is made of a soft magnetic material, and the first magnet is attracted to the base plate.

2. A magnetic door catch as described in claim 1, characterized in that, The mounting base is provided with a mounting groove for accommodating the base plate and the first magnet, and the base plate is provided with a surrounding edge that fits tightly with the mounting groove.

3. A magnetic door catch as described in claim 2, characterized in that, The mounting groove has a notch on its side for easy removal of the base plate.

4. A magnetic door catch as described in claim 1, characterized in that, The upper surface of the first magnet is provided with a first buffer pad.

5. A magnetic door catch as described in claim 1, characterized in that, The adsorption element includes a second magnet.

6. A magnetic door catch as described in claim 5, characterized in that, A pad is provided on the end face of the second magnet away from the ground, and the pad is made of a soft magnetic material.

7. A magnetic door catch as described in any one of claims 1-6, characterized in that, The movable rod has a first through hole in the vertical direction, a boss at the lower end of the first through hole, and a plug inside the first through hole. The plug is inserted from the upper end of the first through hole and makes the adsorption component abut against the boss.

8. A magnetic door catch as described in claim 1, characterized in that, The lower end of the adsorption element is provided with a second buffer pad.

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