Adjustable door positioner

By designing an adjustable door positioner with a screw and rubber pad structure, the problems of complex installation, difficulty for children to operate, and unsightly appearance of existing door positioners are solved, achieving simple installation, protection of the door surface, and strong wind resistance.

CN223867818UActive Publication Date: 2026-02-03范栓柱
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Patent Information

Application Number
CN202520386163.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-03
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Existing door positioners have problems such as complicated installation, inaccessibility to children, unsightly appearance, strict requirements on door thickness and height, and poor wind resistance.

Method used

An adjustable door positioner was designed. Through an adjustable screw and rubber pad structure, it can adapt to door leaves of different thicknesses and heights. It is installed on the ground and uses a rubber sleeve to protect the door surface. It has automatic positioning and wind resistance functions.

Benefits of technology

It achieves the effects of simple installation, suitability for all age groups, protection of door surfaces, adaptability to different door thicknesses and heights, and strong wind resistance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223867818U_ABST
    Figure CN223867818U_ABST
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Abstract

The utility model discloses an adjustable door positioner which comprises an iron plate, an overpass type support is fixed to the top of the iron plate, arched holes are formed in the bottoms of the two ends of the overpass type support, S-shaped lengthened connecting rods penetrate through the interiors of the arched holes, and the S-shaped lengthened connecting rods can rotate in the arched holes. According to the adjustable door positioner, installation is convenient, an individual can install the adjustable door positioner by himself / herself, installation is free of technical content, the position making contact with a door leaf is protected through a rubber pad and a second rubber sleeve, damage to the surface of the door leaf is avoided, and the adjustable door positioner is convenient to use and high in practicability. As the door is installed on the ground, the automatic positioning function is suitable for people of all ages, automatic positioning is achieved when the door is opened, and the door can be closed only by slightly treading with one foot without bending down and touching the device to close the door when the door is closed.
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Description

Technical Field

[0001] This utility model relates to the field of door positioner technology, specifically an adjustable door positioner. Background Technology

[0002] Several door positioners are currently available on the market, but they all have various drawbacks. Some door positioners have strict requirements for installation dimensions and must be installed by professionals. Some door positioners prevent children from closing the door after automatic positioning because the door positioner is located on top of the door leaf, out of children's reach. The rivets (or screws) fixing this door positioner will loosen over time, requiring secondary reinforcement and replacement of the rivet (or screw) positions. The holes left in the original rivet (or screw) positions affect the appearance. There is also a door positioner that is installed on the ground, which has limitations on the height of the door leaf from the ground. It cannot be installed if the door leaf is too low to the ground. This door positioner will cause serious damage to the door's paint, affecting its appearance. In addition, there are strict requirements on the thickness of the door. There is also a wind brace that can only be used on thermally broken doors and must be a European standard groove door leaf. This door positioner can automatically position, but its wind resistance is extremely poor.

[0003] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing door positioners. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable door positioner to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable door positioner, comprising an iron plate, a bridge-shaped bracket fixed to the top of the iron plate, arched holes at the bottom of both ends of the bridge-shaped bracket, an S-shaped extended connecting rod passing through the interior of the arched holes, and the S-shaped extended connecting rod being rotatable within the arched holes, one end of the S-shaped extended connecting rod being abutted against one side of a baffle, the bottom of the baffle being fixedly connected to the top of the iron plate, a counterweight being fixedly attached to the outer wall of one end of the S-shaped extended connecting rod above the bridge-shaped bracket and the baffle, an L-shaped support plate fixed to the top of the iron plate, the end of the L-shaped support plate being fixedly connected to the side of the top of the bridge-shaped bracket, a first bolt passing through the top of the L-shaped support plate, a first anti-slip nut, an L-shaped lever, a washer, and an L-shaped support plate being nested sequentially from top to bottom on the outer side of the first bolt, the first anti-slip nut and the first bolt being threadedly connected, and the first bolt, the L-shaped lever, the washer, and the L-shaped support plate being rotatable. The connection includes a second bolt rotatably mounted inside the L-shaped lever, with a second anti-slip nut threaded onto the outer side of the second bolt above the L-shaped lever. An L-shaped push plate is attached to the top of the overpass-type bracket. First through slots are provided on the bottom of the L-shaped push plate and the top of the overpass-type bracket. The lower end of the second bolt passes through the first through slot and is located inside the overpass-type bracket. The bottom of the L-shaped lever is in contact with the upper surface of the bottom of the L-shaped push plate. A second through slot is provided on the bottom of the L-shaped push plate, with a fixing block installed inside. The bottom of the fixing block is fixedly connected to the top of the overpass-type bracket. A third through slot is provided at one end of the L-shaped push plate, with a lead screw passing through it. A third anti-slip nut is threaded onto the outer side of the lead screw, and a rubber pad is fixed to the end of the lead screw. A column is fixed to the rear side of the top of the iron plate, with a return spring connected to the outer hook of the column. The end of the return spring is connected to the rear hook of the L-shaped lever.

[0006] Preferably, mounting holes are provided at all four corners of the iron plate.

[0007] Preferably, a second rubber sleeve is fixed at one end of the S-shaped extended connecting rod away from the counterweight.

[0008] Preferably, the outer side of the S-shaped extended connecting rod is fixed with a first rubber sleeve between the rubber pad and the second rubber sleeve.

[0009] Preferably, the fixing block is designed as a cuboid structure, and the fixing block and the second through groove form a sliding structure.

[0010] Preferably, the lead screw and the third through groove form a sliding structure, and there are two third anti-slip nuts symmetrically distributed about the central axis of the third through groove, with one side of the third anti-slip nut abutting against the side of the L-shaped push plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the adjustable door positioner can move up and down and left and right inside the third through groove through the screw, and the moved position can be fixed by two third anti-slip nuts, so that the rubber pad at the end of the screw can be adjusted up and down and left and right, so that the rubber pad and the first rubber sleeve can limit the door leaf of different thicknesses, and can also limit the door leaf of different heights from the ground.

[0012] Easy to install; even an individual can do it themselves. Installation requires no technical skills. Rubber pads and a second rubber sleeve protect the door panel, preventing damage. Because it's installed on the ground, the automatic positioning function is suitable for all ages. It automatically positions itself when opening and closes without bending over to activate the mechanism; a simple step with one foot is all it takes. It's also highly wind-resistant, suitable for windy areas, and particularly ideal for floor-spring doors, shops, and retail outlets. It protects the door glass and panel. If the door (especially a floor-spring door) is open and a sudden gust of wind occurs, this product's strong door-stabilizing function prevents the door from violently impacting the frame due to the wind. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a top view of the structure of this utility model;

[0015] Figure 3 This is a top view sectional view of the installation structure of the L-shaped push plate of this utility model;

[0016] Figure 4 This is a side view sectional view of the installation structure of the second bolt of this utility model;

[0017] Figure 5 This is a top view of the overpass-type support structure of this utility model;

[0018] Figure 6 This is a front view structural diagram of the column of this utility model.

[0019] In the diagram: 1. Iron plate; 2. Overpass-type bracket; 3. Arched hole; 4. S-shaped extended connecting rod; 5. Baffle plate; 6. Counterweight block; 7. L-shaped support plate; 8. First bolt; 81. First anti-slip nut; 82. Washer; 9. L-shaped lever; 10. Second bolt; 101. Second anti-slip nut; 11. L-shaped push plate; 12. First through groove; 13. Second through groove; 14. Fixing block; 15. Third through groove; 16. Lead screw; 17. Third anti-slip nut; 18. Rubber pad; 19. First rubber sleeve; 20. Second rubber sleeve; 21. Mounting hole; 22. Column; 23. Return spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-6 This utility model provides a technical solution: an adjustable door positioner, including an iron plate 1, a bridge-shaped bracket 2 fixed to the top of the iron plate 1, arched holes 3 at the bottom of both ends of the bridge-shaped bracket 2, an S-shaped extended connecting rod 4 passing through the arched holes 3, and the S-shaped extended connecting rod 4 can rotate inside the arched holes 3, one end of the S-shaped extended connecting rod 4 is in contact with one side of a baffle 5, the bottom of the baffle 5 is fixedly connected to the top of the iron plate 1, and a counterweight 6 is fixed above the outer wall of one end of the S-shaped extended connecting rod 4 between the bridge-shaped bracket 2 and the baffle 5. An L-shaped support plate 7 is fixed to the top of the structure. The end of the L-shaped support plate 7 is fixedly connected to the side of the top of the overpass-type bracket 2. A first bolt 8 passes through the top of the L-shaped support plate 7. From top to bottom, a first anti-slip nut 81, an L-shaped lever 9, a washer 82, and an L-shaped support plate 7 are nested on the outside of the first bolt 8. The first anti-slip nut 81 and the first bolt 8 are threaded together. The first bolt 8 is rotatably connected to the L-shaped lever 9, the washer 82, and the L-shaped support plate 7. A second bolt 10 is rotatably installed inside the L-shaped lever 9, and the outside of the second bolt 10 is located on the L-shaped support plate 7. The upper part of the L-shaped lever 9 is threaded with a second anti-slip nut 101. An L-shaped push plate 11 is attached to the top of the overpass-type bracket 2. Both the bottom of the L-shaped push plate 11 and the top of the overpass-type bracket 2 have first through slots 12. The lower end of the second bolt 10 passes through the interior of the first through slot 12 and is located inside the overpass-type bracket 2. The width of the first through slot 12 is greater than the minimum diameter of the second bolt 10, allowing the second bolt 10 to move back and forth a certain distance within the first through slot 12. The bottom of the L-shaped lever 9 is in contact with the upper surface of the bottom of the L-shaped push plate 11. The bottom of the plate 11 is provided with a second through groove 13. A fixing block 14 is installed inside the second through groove 13. The bottom of the fixing block 14 is fixedly connected to the top of the overpass-type bracket 2. One end of the L-shaped push plate 11 is provided with a third through groove 15. A lead screw 16 passes through the third through groove 15. A third anti-slip nut 17 is provided on the outer thread of the lead screw 16. A rubber pad 18 is fixed to the end of the lead screw 16. A column 22 is fixed to the rear side of the top of the iron plate 1. A return spring 23 is connected to the hook on the outer side of the column 22. The end of the return spring 23 is connected to the hook on the rear side of the L-shaped lever 9.

[0022] Mounting holes 21 are provided at the four corners of the iron plate 1. The positioning device can be fixed to the ground through the mounting holes 21 and expansion bolts.

[0023] A second rubber sleeve 20 is fixed at one end of the S-shaped extended connecting rod 4, away from the counterweight 6. The second rubber sleeve 20 protects the user's feet.

[0024] The outer side of the S-shaped extended connecting rod 4 is fixed with a first rubber sleeve 19 between the rubber pad 18 and the second rubber sleeve 20. The first rubber sleeve 19 protects the paint on the door.

[0025] The fixing block 14 is designed as a cuboid structure. The fixing block 14 and the second through groove 13 form a sliding structure, which guides the left and right movement of the L-shaped push plate 11.

[0026] The lead screw 16 and the third through groove 15 form a sliding structure. There are two third anti-slip nuts 17 symmetrically distributed about the central axis of the third through groove 15, and one side of the third anti-slip nut 17 abuts against the side of the L-shaped push plate 11. By adjusting the left and right positions of the lead screw 16 and the rubber pad 18 at different positions of the two third anti-slip nuts 17, the distance between the rubber pad 18 and the first rubber sleeve 19 can be adjusted, so that the rubber pad 18 and the first rubber sleeve 19 can limit the door of different thicknesses.

[0027] Working principle: The iron plate 1 is fixed to the cement ground through the mounting hole 21 and expansion bolts. When a person pushes the door leaf, the outer side of the lower sill of the door leaf hits the rubber pad 18. The rubber pad 18 drives the screw rod 16, the third anti-slip nut 17, the L-shaped push plate 11, the second through groove 13, and the first through groove 12 on the L-shaped push plate 11 to move to the left. The right side of the first through groove 12 pushes the second bolt 10 to move to the left. The second bolt 10 drives the L-shaped lever 9 to rotate counterclockwise around the first bolt 8. The L-shaped lever 9 pushes the S-shaped extended connecting rod 4 to rotate counterclockwise inside the arched hole 3, so that the counterweight 6 at one end of the S-shaped extended connecting rod 4 contacts the top of the iron plate 1. At the same time, the other end of the S-shaped extended connecting rod 4 stands up, which, together with the rubber pad 18, limits the door leaf. When the L-shaped lever 9 rotates, it will stretch the return spring 23. When the L-shaped lever 9 is not subjected to external force, it can be pulled back to its original position by the return spring 23.

[0028] When closing the door, gently step on one side of the second rubber sleeve 20 on the S-shaped extended link 4. The end of the S-shaped extended link 4 will be stepped on from the ground, causing one side of the counterweight 6 on the S-shaped extended link 4 to stand up from the ground. This end of the S-shaped extended link 4 on the counterweight 6 will tilt on the L-shaped lever 9 and will not fall down. At the same time, the second rubber sleeve 20 on the S-shaped extended link 4 will remain stationary on the ground, thus completing the door closing action.

[0029] Since the lead screw 16 can move up and down and left and right inside the third through groove 15, and the moved position can be fixed by the two third anti-slip nuts 17, the position of the rubber pad 18 at the end of the lead screw 16 can be adjusted up and down and left and right, so that the rubber pad 18 and the first rubber sleeve 19 can limit the door leaf of different thicknesses, and can also limit the door leaf of different heights from the ground.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable door positioner, comprising an iron plate (1), characterized in that: A bridge-shaped bracket (2) is fixed to the top of the iron plate (1). Arched holes (3) are opened at the bottom of both ends of the bridge-shaped bracket (2). An S-shaped extended connecting rod (4) passes through the inside of the arched hole (3) and can rotate inside the arched hole (3). One end of the S-shaped extended connecting rod (4) is in contact with one side of the baffle (5). The bottom of the baffle (5) is fixedly connected to the top of the iron plate (1). A counterweight (6) is fixed above the outer wall of one end of the S-shaped extended connecting rod (4) between the bridge-shaped bracket (2) and the baffle (5). An L-shaped bracket is fixed to the top of the iron plate (1). The support plate (7) is fixedly connected at its end to the top side of the overpass-type bracket (2). A first bolt (8) passes through the top of the L-shaped support plate (7). From top to bottom, the outer side of the first bolt (8) is nested with a first anti-slip nut (81), an L-shaped lever (9), a washer (82), and an L-shaped support plate (7). The first anti-slip nut (81) and the first bolt (8) are threaded together. The first bolt (8) is rotatably connected to the L-shaped lever (9), the washer (82), and the L-shaped support plate (7). A second bolt (10) is rotatably installed inside the L-shaped lever (9). The outer side of the two bolts (10) is threaded with a second anti-slip nut (101) above the L-shaped lever (9). The top of the overpass bracket (2) is fitted with an L-shaped push plate (11). The bottom of the L-shaped push plate (11) and the top of the overpass bracket (2) are both provided with a first through groove (12). The lower end of the second bolt (10) passes through the inside of the first through groove (12) and is located inside the overpass bracket (2). The bottom of the L-shaped lever (9) is fitted with the upper surface of the bottom of the L-shaped push plate (11). The bottom of the L-shaped push plate (11) is provided with a second through groove (13). The inner surface of the second through groove (13) is... A fixing block (14) is installed on the part. The bottom of the fixing block (14) is fixedly connected to the top of the overpass-type bracket (2). A third through groove (15) is opened at one end of the L-shaped push plate (11). A lead screw (16) passes through the inside of the third through groove (15). A third anti-slip nut (17) is provided on the outer thread of the lead screw (16). A rubber pad (18) is fixed at the end of the lead screw (16). A column (22) is fixed on the rear side of the top of the iron plate (1). A return spring (23) is connected to the hook on the outer side of the column (22). The end of the return spring (23) is connected to the hook on the rear side of the L-shaped lever (9).

2. The adjustable door positioner according to claim 1, characterized in that: Mounting holes (21) are provided at all four corners of the iron plate (1).

3. An adjustable door positioner according to claim 1, characterized in that: A second rubber sleeve (20) is fixed at one end of the S-shaped extended connecting rod (4) away from the counterweight (6).

4. An adjustable door positioner according to claim 3, characterized in that: The outer side of the S-shaped extended connecting rod (4) is fixed with a first rubber sleeve (19) between the rubber pad (18) and the second rubber sleeve (20).

5. An adjustable door positioner according to claim 1, characterized in that: The fixing block (14) is designed as a cuboid structure, and the fixing block (14) and the second through groove (13) form a sliding structure.

6. An adjustable door positioner according to claim 1, characterized in that: The lead screw (16) and the third through groove (15) form a sliding structure. There are two third anti-slip nuts (17) symmetrically distributed about the central axis of the third through groove (15), and one side of the third anti-slip nut (17) abuts against the side of the L-shaped push plate (11).