Novel steel free door

By adopting new components and pushing systems in steel free doors, two-way door opening and convenient access are achieved, solving the problem of one-way door opening and inconvenience in traditional doors, extending service life and simplifying the installation process.

CN222936613UActive Publication Date: 2025-06-03HUNAN YIMING CLEAN TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Application Number
CN202421721529.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-19
Publication Date
2025-06-03
Estimated Expiration
2034-07-19

AI Technical Summary

Technical Problem

Traditional steel free doors can only open the door in a single direction, and the opening method is different when entering and exiting, which cannot meet the needs of special occasions and is inconvenient to pass.

Method used

A new type of steel free door is designed, using door frames, door panels, floor springs, floor springs, floor springs and upper parts, lower shock absorbing pads, sealing plates, telescopic rods, springs and other components to achieve bidirectional door opening and convenient passage through the pushing component and shaft system.

Benefits of technology

It realizes convenient opening and closing of the door and extends its service life, solves the problem of one-way door opening and inconvenience in traditional doors, and cancels hinges, retains the integrity of the door panel and simplifies the installation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of purification workshops, and discloses a novel steel free door which comprises a door frame, the inner wall of the door frame is rotatably connected with a door plate, the bottom of the door plate is highly connected with a floor spring door lower accessory, and the interior of the floor spring door lower accessory is fixedly connected with a floor spring. The top of the door frame is fixedly connected with a floor spring door upper accessory, and the lower surface of the floor spring door lower accessory is fixedly connected with a lower shock pad. According to the utility model, the problems that a traditional free door can only be opened in a single direction, opening modes are different during entering and exiting, the requirements of special occasions cannot be met, and convenience in passing cannot be met are solved, and the purposes that the door frame abandons a baffle of a traditional door frame, so that the door frame does not hinder opening of the door plate, and the opening modes are more convenient to meet the requirements of the special occasions are achieved; and meanwhile, hinges are omitted, the integrity of the door plate is reserved, and during installation, only accessories of the floor spring need to be installed on the door frame and the door plate, so that part of manpower can be saved.
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Description

Technical Field

[0001] The utility model relates to the technical field of purification workshops, and particularly relates to a new type of steel free door. Background Technique

[0002] In a purification workshop, a steel free door is an ideal choice due to its high strength, durability, and good sealing performance. This kind of door is usually equipped with a floor spring system to ensure that the door can automatically close after being opened, maintaining a constant environment inside the workshop. The steel free door can not only withstand frequent use, but also has anti-corrosion and dust-proof functions, ensuring the air quality and safety in the clean room. Through the optimized upper rotating shaft design and precise installation, the steel free door provides stable and reliable operation and convenient passage in an environment with high cleanliness requirements.

[0003] During the use of a traditional steel free door, a hinge system is used to ensure the stable opening and closing and durability of the door. During installation, it is necessary to ensure the precise alignment of the hinges with the door frame to ensure the smooth operation of the door. Regularly check and lubricate the hinges to maintain their normal operation. Avoid opening and closing the door with excessive force, and set safety warnings in areas with high-frequency use to remind users to pay attention to the automatic closing function of the door to ensure safe use.

[0004] The above-mentioned traditional free door usually uses hinges for connection, and its speed and force are difficult to control. At the same time, it can only open the door in a single direction, and the opening methods are different when entering and exiting, which cannot meet the needs of special occasions and cannot meet the convenience of passage. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a new type of steel free door, aiming to improve the problem that the traditional free door can only open in a single direction, and the opening methods are different when entering and exiting, which cannot meet the needs of special occasions and cannot meet the convenience of passage.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A new type of steel free door, including a door frame, the inner wall of the door frame is rotatably connected with a door panel, the bottom of the door panel is fixedly connected with a floor spring door lower fitting, the inside of the floor spring door lower fitting is fixedly connected with a floor spring, the top of the door frame is fixedly connected with a floor spring door upper fitting, the lower surface of the floor spring door lower fitting is fixedly connected with a lower shock pad, a sealing plate is slidably connected inside the floor spring, the outer wall of the sealing plate is slidably connected inside the lower shock pad, a pushing component is arranged inside the sealing plate, and the pushing component is used to push the sealing plate to fit with the lower shock pad. The floor spring and the lower shock pad are both arranged at the bottom of the door panel, the floor spring door upper fitting is arranged at the top of the door panel, and the floor spring door lower fitting and the floor spring door upper fitting are symmetrical.

[0007] Further, the pushing component includes a telescopic rod. One end of the telescopic rod is fixedly connected to the inside of the sealing plate, and the other end of the telescopic rod is fixedly connected to the inside of the floor spring. A spring is sleeved on the outer wall of the telescopic rod. One end of the spring is fixedly connected to the inside of the sealing plate, and the other end of the spring is fixedly connected to the inside of the floor spring.

[0008] Further, a brush is fixedly connected to the outer wall of the door panel, and a card slot is formed inside the floor spring door fitting.

[0009] Further, a rotating shaft is fixedly connected to the inside of the floor spring door fitting, and an upper shock pad is fixedly connected to the top of the door panel.

[0010] Further, a fixing sleeve is fixedly connected to the inside of the upper shock pad, and a torsion spring is arranged inside the fixing sleeve.

[0011] Further, a bearing is fixedly connected to the inner wall of the fixing sleeve, and the outer wall of the rotating shaft is slidably connected to the inner wall of the bearing.

[0012] Further, a sliding sleeve is fixedly connected to one end of the torsion spring, and the outer wall of the sliding sleeve is slidably connected to the inside of the card slot.

[0013] Further, a clamping block is fixedly connected to the outer wall of the sliding sleeve, and the outer wall of the clamping block is slidably connected to the inside of the card slot.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, first, the door panel is pushed to cooperate with the door frame, the floor spring door fitting, the floor spring, and the floor spring upper fitting to achieve convenient opening and closing. At the same time, it is combined with the lower shock pad, the sealing plate, the telescopic rod, and the spring to improve its service life. It solves the problem that the traditional free door can only be opened in a single direction, and the opening methods when entering and exiting are different and cannot meet the requirements of special occasions, and cannot meet the convenience of passage. It achieves that the door frame abandons the baffle of the traditional door frame so that the door frame does not hinder the opening of the door panel, making the opening method more convenient to meet the requirements of specific occasions. At the same time, the hinge is cancelled to retain the integrity of the door panel, which also provides convenience for production. In terms of installation, only the accessories of the floor spring need to be installed on the door frame and the door panel, which saves a part of labor.

[0016] 2. In the utility model, first, when the door panel operates, the rotating shaft rotates inside the door panel, and it cooperates with the sliding sleeve, the clamping block, the torsion spring, the fixing sleeve, the upper shock pad, and the bearing to buffer the door panel and improve the service life of the door panel. It achieves that the service life of the door panel can be improved, and at the same time, it avoids pinching fingers due to rapid closing, improving the use safety of the door. Description of the Drawings

[0017] Figure 1 Schematic three-dimensional structure diagram of a new type of steel free door proposed by the present utility model;

[0018] Figure 2 Schematic brush structure diagram of a new type of steel free door proposed by the present utility model;

[0019] Figure 3 Schematic internal structure diagram of the floor spring of a new type of steel free door proposed by the present utility model;

[0020] Figure 4 is Figure 3 Enlarged view at A in

[0021] Figure 5 Schematic internal structure diagram of the upper shock pad of a new type of steel free door proposed by the present utility model.

[0022] Legend:

[0023] 1. Door frame; 2. Door panel; 3. Floor spring lower fitting; 4. Floor spring; 5. Floor spring upper fitting; 6. Lower shock pad; 7. Sealing plate; 8. Telescopic rod; 9. Spring; 10. Brush; 11. Bearing; 12. Card slot; 13. Sliding sleeve; 14. Block; 15. Torsion spring; 16. Fixed sleeve; 17. Rotating shaft; 18. Upper shock pad. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figure 1 - Figure 3, an embodiment provided by the present utility model: a new type of steel free door, including a door frame 1, the inner wall of the door frame 1 is rotatably connected with a door panel 2, the bottom of the door panel 2 is fixedly connected with a floor spring door lower fitting 3, the inside of the floor spring door lower fitting 3 is fixedly connected with a floor spring 4, the top of the door frame 1 is fixedly connected with a floor spring door upper fitting 5, the lower surface of the floor spring door lower fitting 3 is fixedly connected with a lower shock pad 6, a sealing plate 7 is slidably connected inside the floor spring 4, the outer wall of the sealing plate 7 is slidably connected inside the lower shock pad 6, a pushing component is arranged inside the sealing plate 7, and the pushing component is used to push the sealing plate 7 to fit with the lower shock pad 6. Both the floor spring 4 and the lower shock pad 6 are arranged at the bottom of the door panel 2, and the floor spring door upper fitting 5 is arranged at the top of the door panel 2. The floor spring door lower fitting 3 and the floor spring door upper fitting 5 are symmetrical. The pushing component includes a telescopic rod 8, one end of the telescopic rod 8 is fixedly connected inside the sealing plate 7, the other end of the telescopic rod 8 is fixedly connected inside the floor spring 4, a spring 9 is sleeved on the outer wall of the telescopic rod 8, one end of the spring 9 is fixedly connected inside the sealing plate 7, and the other end of the spring 9 is fixedly connected inside the floor spring 4;

[0026] Specifically, first, push the door panel 2 to move. Since the outer wall of the floor spring door upper fitting 5 is inside the door panel 2, the door panel 2 will rotate around the floor spring door upper fitting 5 when rotating. At the same time, the floor spring 4 at the bottom of the door panel 2 replaces the hinge, greatly preserving the integrity of the door panel 2. When the floor spring 4 is used, the sealing plate 7 will be tightly fitted by the push of the spring 9, thereby preventing external dust and water flow from entering the inside of the floor spring 4 and causing damage to the floor spring 4. At the same time, the lower shock pad 6 can also be used to shock-absorb the bottom of the door panel 2.

[0027] Refer to Figure 1 , Figure 4 and Figure 5 , a brush 10 is fixedly connected to the outer wall of the door panel 2, a card slot 12 is opened inside the floor spring door upper fitting 5, a rotating shaft 17 is fixedly connected inside the floor spring door upper fitting 5, an upper shock pad 18 is fixedly connected to the top of the door panel 2, a fixing sleeve 16 is fixedly connected inside the upper shock pad 18, a torsion spring 15 is arranged inside the fixing sleeve 16, a bearing 11 is fixedly connected to the inner wall of the fixing sleeve 16, the outer wall of the rotating shaft 17 is slidably connected to the inner wall of the bearing 11, one end of the torsion spring 15 is fixedly connected to a sliding sleeve 13, the outer wall of the sliding sleeve 13 is slidably connected inside the card slot 12, and a clamping block 14 is fixedly connected to the outer wall of the sliding sleeve 13, and the outer wall of the clamping block 14 is slidably connected inside the card slot 12;

[0028] Specifically, when the door panel 2 is in use, due to the limitation of the clamping block 14, the torsion spring 15 can be twisted inside the sliding sleeve 13 and the fixed sleeve 16. Together with the shock pad 18, it can shock-absorb and buffer the opening and closing of the door panel 2. Then, together with the bearing 11, it can reduce the friction of the rotating shaft 17 and further improve its service life.

[0029] Working principle: When the new type of steel free door needs to be used, first push the door panel 2 to move. Since the outer wall of the upper fitting 5 of the floor spring door is inside the door panel 2, the door panel 2 rotates around the upper fitting 5 of the floor spring door when rotating. The floor spring 4 at the bottom of the door panel 2 replaces the hinge, greatly retaining the integrity of the door panel 2. When using the floor spring 4, the sealing plate 7 is tightly attached by the push of the spring 9 to prevent external dust and water flow from entering the floor spring 4 and protect its internal structure. In addition, the lower shock pad 6 shock-absorbs the bottom of the door panel 2 to enhance durability.

[0030] In addition, during the use of the door panel 2, the limiting effect of the clamping block 14 enables the torsion spring 15 to twist inside the sliding sleeve 13 and the fixed sleeve 16. Together with the shock pad 18, it shock-absorbs and buffers the opening and closing of the door panel 2. The bearing 11 reduces the friction of the rotating shaft 17 and further improves the service life of the overall structure.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of steel free door, comprising a door frame (1), characterized in that: The inner wall of the door frame (1) is rotatably connected to a door panel (2); the bottom of the door panel (2) is fixedly connected to a floor spring door lower accessory (3); the interior of the floor spring door lower accessory (3) is fixedly connected to a floor spring (4); the top of the door frame (1) is fixedly connected to a floor spring door upper accessory (5); the lower surface of the floor spring door lower accessory (3) is fixedly connected to a lower shock-absorbing pad (6); the interior of the floor spring (4) is slidably connected to a sealing plate (7); the outer wall of the sealing plate (7) is slidably connected to the interior of the lower shock-absorbing pad (6); a pushing component is arranged inside the sealing plate (7); the pushing component is used to push the sealing plate (7) and the lower shock-absorbing pad (6) to fit together; the floor spring (4) and the lower shock-absorbing pad (6) are both arranged at the bottom of the door panel (2); the floor spring door upper accessory (5) is arranged at the top of the door panel (2); the floor spring door lower accessory (3) and the floor spring door upper accessory (5) are symmetrical.

2. A new type of steel free door according to claim 1, characterized in that: The pushing assembly comprises a telescopic rod (8), one end of the telescopic rod (8) is fixedly connected to the inside of the sealing plate (7), and the other end of the telescopic rod (8) is fixedly connected to the inside of the floor spring (4); a spring (9) is sleeved on the outer wall of the telescopic rod (8), one end of the spring (9) is fixedly connected to the inside of the sealing plate (7), and the other end of the spring (9) is fixedly connected to the inside of the floor spring (4).

3. A new type of steel free door according to claim 1, characterized in that: A brush (10) is fixedly connected to the outer wall of the door panel (2), and a clamping groove (12) is provided inside the upper fitting (5) of the floor spring door.

4. A new type of steel free door according to claim 3, characterized in that: A rotating shaft (17) is fixedly connected inside the floor spring door upper accessory (5), and an upper shock-absorbing pad (18) is fixedly connected to the top of the door panel (2).

5. A new type of steel free door according to claim 4, characterized in that: A fixing sleeve (16) is fixedly connected to the interior of the upper shock-absorbing pad (18), and a torsion spring (15) is arranged inside the fixing sleeve (16).

6. A new type of steel free door according to claim 5, characterized in that: The inner wall of the fixed sleeve (16) is fixedly connected to a bearing (11), and the outer wall of the rotating shaft (17) is slidably connected to the inner wall of the bearing (11).

7. A new type of steel free door according to claim 6, characterized in that: One end of the torsion spring (15) is fixedly connected to a sliding sleeve (13), and the outer wall of the sliding sleeve (13) is slidably connected to the interior of the clamping groove (12).

8. A new type of steel free door according to claim 7, characterized in that: The outer wall of the sliding sleeve (13) is fixedly connected with a clamping block (14), and the outer wall of the clamping block (14) is slidably connected to the interior of the clamping groove (12).