A door closer

Abstract

This utility model discloses a door catcher, including a door connecting seat mounted on a door panel and a floor catcher mounted on the ground. The door connecting seat contains a movable rod that slides up and down and an elastic element for controlling the rod's reset. The floor catcher includes a fixed base and a first suction element. A second suction element is located at the lower end of the movable rod. The first and second suction elements magnetically attract each other to limit the door panel's position. The bottom surface of the fixed base has a first mounting groove, and the first suction element is disposed within this groove. This utility model places the first suction element on the bottom surface of the fixed base, ensuring it will not detach and concealing it for a more aesthetically pleasing appearance.

Description

Technical Field

[0001] This utility model relates to a door catch. 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 magnetically attracted. For example, utility model patent CN221002366U discloses a magnetic door catcher, including a base mounted on a door panel with a fixing rod device inside the base, and a base mounted on the ground. The base uses magnetic attraction to fix the fixing rod device to limit the door panel's position. The base has an elastic stop block to prevent the door panel from detaching from the base in the closing direction. It also includes a magnetically attracted metal sheet. The side of the base has a horizontally oriented through groove for inserting the metal sheet, and the upper part of the through groove has a hole for engaging the fixing rod device. The metal sheet is confined within the base by engaging with the through groove. However, the metal sheet is stuck inside the base. On the one hand, the base is generally made of plastic, and if it is damaged by impact, the confinement of the metal sheet may fail, causing the metal sheet to be attracted by the fixing rod or detached from the base by other external forces. On the other hand, the exposed surface of the metal sheet is unsightly and prone to rust. Utility Model Content

[0003] In view of the shortcomings of existing technology, this utility model provides a door catch.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a door catcher, comprising a door connecting seat installed on a door panel and a floor catcher installed on the ground. The door connecting seat is provided with a movable rod that slides up and down and an elastic element for controlling the resetting of the movable rod. The floor catcher includes a fixed seat and a first adsorption element. A second adsorption element is provided at the lower end of the movable rod. The first and second adsorption elements are magnetically adsorbed to limit the door panel. The bottom surface of the fixed seat is provided with a first mounting groove, and the first adsorption element is disposed in the first mounting groove.

[0005] The movable rod includes an adapter, a first mounting hole is provided at the lower end of the movable rod, a boss is provided on the inner wall of the first mounting hole, a retaining shaft is provided at the upper end of the adapter, the retaining shaft is provided with a retaining groove that mates with the boss, a second mounting groove is provided at the lower end of the adapter, and the second adsorption element is disposed in the second mounting groove.

[0006] The second adsorption element is a permanent magnet material, and the adapter is a soft magnetic material.

[0007] The bottom surface of the second adsorption element is provided with a buffer pad.

[0008] The top surface of the fixed seat is provided with a limiting block, and the side of the limiting block facing the door connecting seat is provided with a concave arc surface.

[0009] The fixed seat is provided with an elastic stop near the door connecting seat, and the elastic stop has a notch in the middle, the minimum width of which is less than the width of the bottom surface of the movable rod.

[0010] The elastic stop portion includes a left stop block and a right stop block arranged symmetrically. The left stop block and the right stop block include a trapezoidal portion, a first connecting portion, and a first protrusion integrally formed from top to bottom. The fixing seat is provided with a trapezoidal through hole corresponding to the trapezoidal portion and a first groove corresponding to the first protrusion.

[0011] The mounting base is provided with a decorative cover, and the top surface of the decorative cover has an opening.

[0012] The side of the fixing base is provided with at least two second grooves, and the bottom of the decorative cover is provided with a second protrusion corresponding to the second groove, and the second protrusion and the second groove are engaged.

[0013] The decorative cover has a fourth groove on its side for easy removal.

[0014] The beneficial effects of this utility model are as follows: This utility model sets the first adsorption component on the bottom surface of the fixed base, which ensures that the first adsorption component will not fall off, and at the same time hides the first adsorption component, making the appearance more beautiful. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the floor suction component of this utility model after the decorative cover has been removed;

[0018] Figure 4 This is an exploded view of the ground suction component of this utility model;

[0019] Figure 5 For this Figure 4 Another view;

[0020] Figure 6 This is a schematic diagram of the ground suction component of this utility model. Detailed Implementation

[0021] like Figures 1-6As shown, a door catcher includes a door connector 10 mounted on a door panel and a floor catcher 20 mounted on the ground. The door connector 10 contains a movable rod 11 that slides up and down and an elastic element 12 for controlling the return of the movable rod 11. The floor catcher 20 includes a fixed base 21 and a first suction element 22. A second suction element 13 is provided at the lower end of the movable rod 11. The first and second suction elements 22 and 13 are magnetically attracted to limit the door panel. The bottom surface of the fixed base 21 has a first mounting groove 211, and the first suction element 22 is disposed within the first mounting groove 211. The side of the mounting groove has a third groove 215 for easily prying out the first suction element 22. In a specific embodiment, either the first suction element 22 or the second suction element 13 is a permanent magnet material, and the other is a soft magnetic material, or both are permanent magnet materials, all of which allow the first and second suction elements 22 and 13 to be magnetically attracted. The elastic element 12 is a spring sleeved on the movable rod 11. Soft magnetic materials refer to magnetic materials with low coercivity and high permeability. Soft magnetic materials are easy to magnetize and demagnetize. Common soft magnetic materials include pure iron, low carbon steel, nickel-iron alloys and certain ferrites.

[0022] The movable rod 11 includes an adapter 14. The lower end of the movable rod 11 has a first mounting hole 111, and the inner wall of the first mounting hole 111 has a boss 112. The upper end of the adapter 14 has a retaining shaft 141, and the retaining shaft 141 has a retaining groove 142 that mates with the boss 112. The lower end of the adapter 14 has a second mounting groove 143, and the second adsorption member 13 is disposed within the second mounting groove 143. The first adsorption member 22 and the second adsorption member 13 can be fixedly installed by adhesive or tight fitting.

[0023] The second adsorption element 13 is made of permanent magnet material, and the adapter 14 is made of soft magnetic material. By setting the adapter 14, made of soft magnetic material, on the back side of the adsorption surface of the second adsorption element 13, a low magnetic resistance path is provided, 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 adsorption surface of the second adsorption element 13, making the adsorption rod 11 more sensitive and faster in response.

[0024] The bottom surface of the second adsorption element 13 is provided with a buffer pad 15.

[0025] The top surface of the fixed base 21 is provided with a limiting block 23, and the side of the limiting block 23 facing the door connecting base 10 is provided with a concave arc surface. In this embodiment, a buffer ring 24 is also sleeved on the limiting block 23.

[0026] The fixed base 21 is provided with an elastic stop 25 near the door connecting base 10, and the elastic stop 25 has a notch 26 in the middle. The minimum width of the notch 26 is smaller than the width of the bottom surface of the movable rod 11. The elastic stop 25 is used to prevent the movable rod 11 from detaching from the base when a strong wind blows the door, causing the door catch to fail. When the movable rod 11 moves towards the suction member 20, the movable rod 11 will first hit the elastic stop 25. After the speed of the movable rod 11 decreases, it will then come into contact with the suction member, which greatly reduces the collision noise.

[0027] The elastic stop portion 25 includes a left stop block 251 and a right stop block 252 symmetrically arranged. The left stop block 251 and the right stop block 252 include a trapezoidal portion 253 integrally formed from top to bottom, a first connecting portion 254, and a first protrusion 255. The fixing base 21 is provided with a trapezoidal through hole 212 corresponding to the trapezoidal portion 253 and a first groove 213 corresponding to the first protrusion 255.

[0028] The fixing base 21 is provided with a decorative cover 27, and the top surface of the decorative cover 27 is provided with an opening 271.

[0029] The fixing base 21 has at least two second grooves 214 on its side, and the decorative cover 27 has a second protrusion 272 at its bottom corresponding to the second groove 214. The second protrusion 272 and the second groove 214 are engaged.

[0030] The decorative cover 27 has a fourth groove 273 on its side for easy removal. The above description shows and illustrates 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 door catcher, comprising a door connector mounted on a door panel and a floor catcher mounted on the ground, wherein the door connector has a movable rod that slides up and down and an elastic element for controlling the repositioning of the movable rod, the floor catcher includes a fixed base and a first suction element, and a second suction element is provided at the lower end of the movable rod, the first and second suction elements being magnetically attracted to limit the door panel, characterized in that... The bottom surface of the fixed base is provided with a first mounting groove, and the first adsorption element is disposed in the first mounting groove.

2. A door catch as described in claim 1, characterized in that, The movable rod includes an adapter, a first mounting hole is provided at the lower end of the movable rod, a boss is provided on the inner wall of the first mounting hole, a retaining shaft is provided at the upper end of the adapter, the retaining shaft is provided with a retaining groove that mates with the boss, a second mounting groove is provided at the lower end of the adapter, and the second adsorption element is disposed in the second mounting groove.

3. A door catch as described in claim 2, characterized in that, The second adsorption element is a permanent magnet material, and the adapter is a soft magnetic material.

4. A door catch as described in claim 2 or 3, characterized in that, The bottom surface of the second adsorption element is provided with a buffer pad.

5. A door catch as described in claim 1, characterized in that, The top surface of the fixed seat is provided with a limiting block, and the side of the limiting block facing the door connecting seat is provided with a concave arc surface.

6. A door catch as described in claim 1, characterized in that, The fixed seat is provided with an elastic stop near the door connecting seat, and the elastic stop has a notch in the middle, the minimum width of which is less than the width of the bottom surface of the movable rod.

7. A door catch as described in claim 6, characterized in that, The elastic stop portion includes a left stop block and a right stop block arranged symmetrically. The left stop block and the right stop block include a trapezoidal portion, a first connecting portion, and a first protrusion integrally formed from top to bottom. The fixing seat is provided with a trapezoidal through hole corresponding to the trapezoidal portion and a first groove corresponding to the first protrusion.

8. A door catch as described in claim 1, characterized in that, The mounting base is provided with a decorative cover, and the top surface of the decorative cover has an opening.

9. A door catch as described in claim 8, characterized in that, The side of the fixing base is provided with at least two second grooves, and the bottom of the decorative cover is provided with a second protrusion corresponding to the second groove, and the second protrusion and the second groove are engaged.

10. A door catch as described in claim 9, characterized in that, The decorative cover has a fourth groove on its side for easy removal.

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