A compact door closer

Abstract

The application discloses a novel compact door closer, and relates to the field of door closers, which comprises a door closer, a supporting rod arranged on the door closer, a fixed block fixedly installed on the door closer, connecting blocks movably installed at two ends of the fixed block, mounting blocks fixedly installed at ends of the two connecting blocks away from each other, movable shafts rotatably installed on the two mounting blocks, sealing plates fixedly installed at top sides of the two movable shafts, limiting blocks rotatably installed at two ends of the connecting blocks, the two limiting blocks being in contact with the two sealing plates respectively, a rotating hole arranged on the limiting block, and a rotating shaft rotatably installed in the rotating hole. The door closer can be conveniently installed on a door through the cooperation of the fixed block and the connecting blocks, and the door closer is convenient to maintain and replace in the later period, and damage to the door itself is avoided, so that the practicability of the door closer is improved.

Description

Technical Field

[0001] This invention relates to the field of door closer technology, and in particular to a novel, compact door closer. Background Technology

[0002] A door closer is a hydraulic device similar to a spring on the door frame. When the door is opened, it can be compressed and then released to automatically close the door, similar to a spring door. It can ensure that the door is accurately and promptly closed to the initial position after being opened.

[0003] In the existing technology, existing door closers need to be fixed to the door with bolts during installation. This is relatively convenient for installation on wooden doors, but it is not suitable for installation on metal doors. Therefore, a new type of door closer with a compact structure is needed to meet people's needs. Summary of the Invention

[0004] The purpose of this invention is to provide a novel, compact door closer to solve the problem mentioned in the background art that bolts are not suitable for installation on metal doors.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel compact door closer, comprising a door closer, a support rod on the door closer, a fixing block fixedly mounted on the door closer, connecting blocks movably mounted at both ends of the fixing block, mounting blocks fixedly mounted at the ends of the two connecting blocks that are far apart from each other, movable shafts rotatably mounted on both mounting blocks, sealing plates fixedly mounted on the top sides of the two movable shafts, and limit blocks rotatably mounted at both ends of the connecting blocks, with the two limit blocks respectively contacting the two sealing plates.

[0006] This technical solution presents a novel, compact door closer. When installing the door closer on a metal door, the cooperation between the fixing block and the connecting block allows for convenient installation of the door closer on the door, facilitating later maintenance and replacement without damaging the door itself, thus improving the practicality of the door closer.

[0007] Preferably, the limiting block has a rotating hole, and a rotating shaft is rotatably mounted in the rotating hole. The rotating shaft is fixedly mounted on the connecting block. The limiting block achieves its rotation on the connecting block through the rotating hole and the rotating shaft.

[0008] Preferably, the mounting block has a rotating groove, and one end of the movable shaft is rotatably mounted in the rotating groove. The movable shaft rotates within the rotating groove of the mounting block, achieving the effect of rotation.

[0009] Preferably, a limiting groove is formed on the inner wall of the rotating groove, and a limiting ring is rotatably installed in the limiting groove. The limiting ring is fixedly installed on the movable shaft. The rotating movable shaft drives the limiting ring to rotate in the limiting groove, so that the movable shaft is affected by the limiting groove through the limiting ring and will not disengage from the rotating groove during rotation.

[0010] Preferably, each of the two connecting blocks has a slot on its side where they are close to each other, and the two ends of the fixing block are slidably installed in the two slots respectively. Moving the door closer causes the fixing block to disengage from the slots on the two connecting blocks.

[0011] Preferably, a torsion spring is movably sleeved on the movable shaft, with one end of the torsion spring fixedly mounted on the mounting block and the other end fixedly mounted on the sealing plate. When the sealing plate rotates, it will twist the torsion spring, so that after the sealing plate is released, the torsion spring will reset the sealing plate.

[0012] Preferably, the support rod has a rotating hole, and a rotating shaft is rotatably installed in the rotating hole. The rotating shaft is movably installed on the door closer, thereby enabling the support rod to move.

[0013] The beneficial effects of this invention are:

[0014] In this invention, by setting up a connecting block, when installing a door closer on a metal door, the door closer can be conveniently installed on the door through the cooperation of the fixing block and the connecting block, which facilitates later maintenance and replacement, does not damage the door itself, and improves the practicality of the door closer.

[0015] In this invention, by setting up a limiting block and a sealing plate, after the door closer is installed, the door closer can be fixed and released by the cooperation of the limiting block and the sealing plate, which further improves the practicality of the door closer. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a novel, compact door closer proposed in this invention.

[0017] Figure 2 This is a top view schematic diagram of a novel compact door closer proposed in this invention;

[0018] Figure 3 This is a partial structural schematic diagram of a novel, compact door closer proposed in this invention;

[0019] Figure 4 This is a cross-sectional view of a novel, compact door closer proposed in this invention.

[0020] In the diagram: 1. Door closer; 2. Support rod; 3. Fixing block; 4. Connecting block; 5. Mounting block; 6. Movable shaft; 7. Sealing plate; 8. Limiting block; 9. Rotating hole; 10. Rotating shaft; 11. Rotating hole; 12. Rotating shaft; 13. Torsion spring; 14. Slot; 15. Rotating groove; 16. Limiting groove; 17. Limiting ring. Detailed Implementation

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

[0022] Reference Figures 1-4 A novel, compact door closer includes a door closer 1, a support rod 2 on the door closer 1, a fixed block 3 fixedly mounted on the door closer 1, connecting blocks 4 movably mounted at both ends of the fixed block 3, mounting blocks 5 fixedly mounted at the ends of the two connecting blocks 4 that are far apart from each other, movable shafts 6 rotatably mounted on both mounting blocks 5, and sealing plates 7 fixedly mounted on the top sides of both movable shafts 6. Limit blocks 8 rotatably mounted at both ends of the connecting blocks 4, and the two limit blocks 8 respectively contact the two sealing plates 7. When maintaining the door closer 1, it is necessary to first rotate the limit blocks 8 so that the limit blocks 8 rotate on the connecting blocks 4 through the rotating hole 11 and the rotating shaft 12. The purpose of the movement is to remove the restriction of the sealing plate 7 by the limiting block 8. At this time, the sealing plate 7 can be rotated, thereby driving the movable shaft 6 to rotate. One end of the movable shaft 6 rotates in the rotating groove 15 in the mounting block 5. The rotating movable shaft 6 drives the limiting ring 17 to rotate in the limiting groove 16, so that the movable shaft 6 is affected by the limiting groove 16 through the limiting ring 17 and will not disengage from the rotating groove 15 when rotating. At this time, the door closer 1 can be moved directly, so that the door closer 1 drives the fixing block 3 to disengage from the slots 14 on the two connecting blocks 4. Since the sealing plate 7 will twist the torsion spring 13 when rotating, the torsion spring 13 will reset the sealing plate 7 after the sealing plate 7 is released.

[0023] Reference Figure 3 In this invention, the limiting block 8 is provided with a rotating hole 11, and a rotating shaft 12 is rotatably installed in the rotating hole 11. The rotating shaft 12 is fixedly installed on the connecting block 4. The limiting block 8 achieves the purpose of rotating on the connecting block 4 through the rotating hole 11 and the rotating shaft 12.

[0024] Reference Figure 4 In this invention, a rotating groove 15 is provided on the mounting block 5, and one end of the movable shaft 6 is rotatably installed in the rotating groove 15. The one end of the movable shaft 6 rotates in the rotating groove 15 in the mounting block 5 to achieve the effect of rotation.

[0025] Reference Figure 4In this invention, a limiting groove 16 is provided on the inner wall of the rotating groove 15, and a limiting ring 17 is rotatably installed in the limiting groove 16. The limiting ring 17 is fixedly installed on the movable shaft 6. The rotating movable shaft 6 drives the limiting ring 17 to rotate in the limiting groove 16, so that the movable shaft 6 is affected by the limiting groove 16 through the limiting ring 17 and will not detach from the rotating groove 15 when rotating.

[0026] Reference Figure 4 In this invention, slots 14 are provided on the sides of the two connecting blocks 4 that are close to each other. The two ends of the fixing block 3 are slidably installed in the two slots 14 respectively. Moving the door closer 1 causes the door closer 1 to drive the fixing block 3 to disengage from the slots 14 on the two connecting blocks 4.

[0027] Reference Figures 1-4 In this invention, a torsion spring 13 is movably sleeved on the movable shaft 6. One end of the torsion spring 13 is fixedly installed on the mounting block 5, and the other end of the torsion spring 13 is fixedly installed on the sealing plate 7. When the sealing plate 7 rotates, it will twist the torsion spring 13, so that after the sealing plate 7 is released, the torsion spring 13 will reset the sealing plate 7.

[0028] Reference Figures 1-2 In this invention, a rotating hole 9 is provided on the support rod 2, and a rotating shaft 10 is rotatably installed in the rotating hole 9. The rotating shaft 10 is movably installed on the door closer 1 to realize the movement of the support rod 2.

[0029] Working principle of this invention:

[0030] When maintaining the door closer 1, the limiting block 8 needs to be rotated first, so that the limiting block 8 can rotate on the connecting block 4 through the rotating hole 11 and the rotating shaft 12, thereby releasing the limitation of the sealing plate 7 by the limiting block 8. At this time, the sealing plate 7 can be rotated to drive the movable shaft 6 to rotate. One end of the movable shaft 6 rotates in the rotating groove 15 in the mounting block 5. The rotating movable shaft 6 drives the limiting ring 17 to rotate in the limiting groove 16, so that the movable shaft 6 is affected by the limiting groove 16 through the limiting ring 17 and will not disengage from the rotating groove 15 when rotating. At this time, the door closer 1 can be moved directly, so that the door closer 1 drives the fixing block 3 to disengage from the slots 14 on the two connecting blocks 4. Since the sealing plate 7 will twist the torsion spring 13 when rotating, the torsion spring 13 will reset the sealing plate 7 after it is released.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A compact door closer, comprising a door closer (1) and a support rod (2) thereon, characterized in that: A fixing block (3) is fixedly installed on the door closer (1). Connecting blocks (4) are movably installed at both ends of the fixing block (3). Mounting blocks (5) are fixedly installed at the ends of the two connecting blocks (4) that are far apart from each other. Movable shafts (6) are rotatably installed on both mounting blocks (5). Sealing plates (7) are fixedly installed on the top side of the two movable shafts (6). Limiting blocks (8) are rotatably installed at both ends of the connecting block (4). The two limiting blocks (8) are in contact with the two sealing plates (7) respectively. The limiting block (8) has a rotating hole (11), and a rotating shaft (12) is rotatably installed in the rotating hole (11). The rotating shaft (12) is fixedly installed on the connecting block (4). The mounting block (5) has a rotating groove (15), and one end of the movable shaft (6) is rotatably installed in the rotating groove (15). The inner wall of the rotating groove (15) has a limiting groove (16), and a limiting ring (17) is rotatably installed in the limiting groove (16). The limiting ring (17) is fixedly installed on the movable shaft (6). The two connecting blocks (4) have slots (14) on their sides that are close to each other. The two ends of the fixing block (3) are slidably installed in the two slots (14).

2. The door closer with a compact structure according to claim 1, characterized in that: A torsion spring (13) is movably sleeved on the movable shaft (6). One end of the torsion spring (13) is fixedly installed on the mounting block (5), and the other end of the torsion spring (13) is fixedly installed on the sealing plate (7).

3. The door closer with a compact structure according to claim 1, characterized in that: The support rod (2) has a rotating hole (9), and a rotating shaft (10) is rotatably installed in the rotating hole (9). The rotating shaft (10) is movably installed on the door closer (1).

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