Sealing structure of manual-automatic integrated door closer

Abstract

The utility model discloses a sealing structure of a manual-automatic integrated door closer, which comprises a door closer body and an uncovered box body, the door closer body is arranged in the uncovered box body, a sealing cover plate is placed at the upper end of the uncovered box body, and the lower end of the sealing cover plate is clamped and positioned with the upper end of the uncovered box body. The sealing cover plate is arranged at the upper end of the uncovered box body, and the locking bolts penetrate through the sealing cover plate and then are screwed into the threaded holes in the positioning blocks respectively, so that the sealing cover plate is effectively positioned at the upper end of the uncovered box body, and the stability of the joint of the sealing cover plate and the uncovered box body is improved; according to the door closer, the rectangular annular sealing ring of the corrosion-resistant rubber product is inserted into the rectangular annular inserting groove, the multiple circular sealing covers are located on the multiple annular protrusions in a sleeved mode, sealing is effectively provided for the sealing cover plate and the uncovered box body, dust and other impurities are prevented from entering the box body, and the service life of the door closer body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of door closer technology, and in particular to a sealing structure for a manual / automatic door closer. Background Technology

[0002] A manual door closer is a mechanism that automatically closes the door using electronic control. Electric door closers differ from hydraulic fireproof door closers in that they combine the functions of an electromagnetic release and a non-positioning door closer. When the door is pushed inward, the spring is compressed and locked by the solenoid valve, keeping the door in a normally open state. When power is supplied, the solenoid valve is released and the door is closed by the rebound impact force of the spring.

[0003] In actual use, the existing door closer sealing cover has poor stability at the interface between the cover and the box, and the sealing effect between the lower end of the cover and the upper end of the box is not good, which can easily lead to the entry of dust and other impurities, affecting the service life of the door closer. A sealing structure for a manual and automatic door closer is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings and defects in existing technologies, this utility model proposes a sealing structure for a manual / automatic integrated door closer. This structure solves the technical problem in the prior art where the sealing cover of the existing door closer has poor stability at the interface between the cover and the housing, and the sealing effect between the lower end of the cover and the upper end of the housing is inadequate, making it easy for dust and other impurities to enter and affecting the service life of the door closer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealing structure for a manual / automatic door closer includes a door closer body and a coverless housing. The door closer body is disposed within the coverless housing. A sealing cover is placed on the upper end of the coverless housing. The lower end of the sealing cover is engaged and positioned with the upper end of the coverless housing. Locking components are provided on the upper ends of the sealing cover near both the front and rear sides. The locking components are associated with the coverless housing. A waterproof component is provided on the upper end of the sealing cover.

[0007] Preferably, a rectangular annular sealing ring is fixedly connected to the lower end of the sealing cover, and a rectangular annular slot is provided at the upper end of the coverless box, with the rectangular annular sealing ring inserted into the rectangular annular slot.

[0008] Preferably, the locking assembly includes a plurality of locking bolts that vertically penetrate the sealing cover plate near the upper ends of the front and rear sides. The inner wall of the coverless box body facing the plurality of locking bolts is provided with positioning blocks. The upper ends of the plurality of positioning blocks are provided with threaded holes. The lower ends of the plurality of locking bolts are screwed into the plurality of threaded holes respectively. The waterproof assembly is associated with the plurality of locking bolts.

[0009] Preferably, several of the positioning blocks are seamlessly welded and fixed to the inner wall of the uncovered box.

[0010] Preferably, the waterproof component includes a plurality of annular protrusions disposed on the upper end of the sealing cover plate, a plurality of locking bolts respectively located within the plurality of annular protrusions, a circular sealing cap fitted onto each of the plurality of annular protrusions, and the plurality of annular protrusions being integrally cast with the sealing cover plate.

[0011] Preferably, both the rectangular annular sealing ring and the circular sealing cap are corrosion-resistant rubber products.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. By placing the sealing cover plate on the top of the uncovered box, and then screwing several locking bolts through the sealing cover plate into the threaded holes on several positioning blocks, the sealing cover plate is effectively positioned on the top of the uncovered box, improving the stability of the interface between the sealing cover plate and the uncovered box.

[0014] 2. By placing the sealing cover plate on the top of the uncovered box, the rectangular annular sealing ring of the corrosion-resistant rubber product is inserted into the rectangular annular slot, and several circular sealing covers are respectively fitted and positioned on several annular protrusions, which effectively provides a seal for the sealing cover plate and the uncovered box, preventing dust and other impurities from entering and extending the service life of the door closer body. Attached Figure Description

[0015] Figure 1 A partial perspective view of the sealing structure of a manual / automatic integrated door closer proposed in this utility model;

[0016] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0017] Figure 3 This is a schematic diagram showing the disassembled structure of the annular protrusion and the circular sealing cover of the sealing structure of the manual / automatic integrated door closer proposed in this utility model.

[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the locking component of the sealing structure of a manual / automatic door closer proposed in this utility model.

[0019] In the diagram: 1. Door closer body, 2. Coverless box, 3. Sealing cover, 4. Rectangular annular sealing ring, 5. Rectangular annular slot, 6. Locking bolt, 7. Positioning block, 8. Threaded hole, 9. Annular protrusion, 10. Circular sealing cover. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A sealing structure for a manual / automatic door closer includes a door closer body 1 and a coverless housing 2. The door closer body 1 is disposed inside the coverless housing 2. A sealing cover 3 is placed on the upper end of the coverless housing 2. The lower end of the sealing cover 3 is engaged and positioned with the upper end of the coverless housing 2. A rectangular annular sealing ring 4 is fixedly connected to the lower end of the sealing cover 3. A rectangular annular slot 5 is provided on the upper end of the coverless housing 2. The rectangular annular sealing ring 4 is inserted into the rectangular annular slot 5. By placing the lower end of the sealing cover 3 on the upper end of the coverless housing 2, the rectangular annular sealing ring 4, made of corrosion-resistant rubber, is inserted into the rectangular annular slot 5 on the upper end of the coverless housing 2, effectively preventing dust and other impurities from entering the coverless housing 2 along the gap between the coverless housing 2 and the sealing cover 3, thus extending the service life of the door closer body 1.

[0023] Locking components are provided on the upper ends of the sealing cover plate 3 near the front and rear sides. The locking components are associated with the coverless box body 2. The locking components include several locking bolts 6 that vertically penetrate the upper ends of the sealing cover plate 3 near the front and rear sides. Positioning blocks 7 are provided on the inner wall of the coverless box body 2 opposite to the locking bolts 6. The positioning blocks 7 are seamlessly welded to the inner wall of the coverless box body 2. The upper ends of the positioning blocks 7 are provided with threaded holes 8. The lower ends of the locking bolts 6 are screwed into the threaded holes 8. The waterproof component is associated with the locking bolts 6. After the locking bolts 6 penetrate the sealing cover plate 3, they are screwed into the threaded holes 8 on the positioning blocks 7 inside the coverless box body 2. This effectively positions and fixes the sealing cover plate 3 on the upper end of the coverless box body 2, improving the stability of the interface between the sealing cover plate 3 and the coverless box body 2.

[0024] The upper end of the sealing cover plate 3 is provided with a waterproof component, which includes several annular protrusions 9 set on the upper end of the sealing cover plate 3, several locking bolts 6 respectively located in the several annular protrusions 9, and a circular sealing cover 10 sleeved on each of the several annular protrusions 9. The several annular protrusions 9 are integrally cast with the sealing cover plate 3. The rectangular annular sealing ring 4 and the circular sealing cover 10 are both corrosion-resistant rubber products. The several circular sealing covers 10 are respectively sleeved and positioned on the several annular protrusions 9, so that the several corrosion-resistant rubber circular sealing covers 10 provide a seal to the locking bolts 6, preventing dust and other impurities from entering the coverless box 2 along the insertion hole of the locking bolt 6, improving the sealing effect and extending the service life of the door closer body 1.

[0025] In use, the lower end of the sealing cover plate 3 is placed on the upper end of the uncovered box 2, so that the rectangular annular sealing ring 4 of the corrosion-resistant rubber product is inserted into the rectangular annular slot 5 at the upper end of the uncovered box 2. Then, several locking bolts 6 are passed through the sealing cover plate 3 and screwed into the threaded holes 8 on several positioning blocks 7 inside the uncovered box 2, effectively positioning and fixing the sealing cover plate 3 at the upper end of the uncovered box 2, improving the stability of the interface between the sealing cover plate 3 and the uncovered box 2. Several circular sealing covers 10 are respectively fitted and positioned on several annular protrusions 9, so that the several circular sealing covers 10 of the corrosion-resistant rubber product provide a seal to the locking bolts 6. Together with the rectangular annular sealing ring 4 of the corrosion-resistant rubber product, they provide a good seal for the sealing cover plate 3 and the uncovered box 2, preventing dust and other impurities from entering and extending the service life of the door closer body 1.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealing structure of a hand-automatic door closer, comprising a door closer body (1) and a coverless box body (2), the door closer body (1) is arranged in the coverless box body (2), characterized in that, A sealing cover (3) is placed on the upper end of the lidless box (2). The lower end of the sealing cover (3) is engaged with the upper end of the lidless box (2). Locking components are provided on the upper ends of the sealing cover (3) near the front and rear sides. The locking components are associated with the lidless box (2). A waterproof component is provided on the upper end of the sealing cover (3).

2. The sealing structure of a manual-automatic door closer according to claim 1, wherein The lower end of the sealing cover (3) is fixedly connected with a rectangular annular sealing ring (4), and the upper end of the coverless box (2) is provided with a rectangular annular slot (5), and the rectangular annular sealing ring (4) is inserted into the rectangular annular slot (5).

3. The sealing structure of a manual-automatic door closer according to claim 1, wherein The locking assembly includes several locking bolts (6) that vertically penetrate the sealing cover plate (3) near the upper ends of the front and rear sides. The inner wall of the coverless box (2) facing the several locking bolts (6) is provided with positioning blocks (7). The upper ends of the several positioning blocks (7) are provided with threaded holes (8). The lower ends of the several locking bolts (6) are screwed into the several threaded holes (8). The waterproof assembly is associated with the several locking bolts (6).

4. A seal for a manual / automatic door closer according to claim 3, wherein Several of the positioning blocks (7) are seamlessly welded to the inner wall of the uncovered box (2).

5. The seal structure of a manual-automatic door closer according to claim 2, wherein The waterproof component includes several annular protrusions (9) disposed on the upper end of the sealing cover plate (3), several locking bolts (6) are respectively located in the several annular protrusions (9), and a circular sealing cover (10) is sleeved on each of the several annular protrusions (9). The several annular protrusions (9) are integrally cast with the sealing cover plate (3).

6. A seal for a manual / automatic door closer according to claim 5, wherein Both the rectangular annular sealing ring (4) and the circular sealing cap (10) are corrosion-resistant rubber products.

Images