Bidirectional door closer

Abstract

The utility model relates to the technical field of door openers, and discloses a bidirectional door closer which comprises a mounting plate, one end of the mounting plate is fixedly connected with a main shaft body box, a main shaft body is fixedly connected in the main shaft body box, and a rotating rod is sleeved on the surface of the main shaft body. The other end of the rotating rod extends to the surface of the mounting plate and is fixedly connected with a secondary shaft body, the surface of the secondary shaft body is sleeved with a deflection rod, a sliding rod is arranged in the deflection rod in a sliding mode, and one end of the sliding rod extends to the exterior of the deflection rod and is fixedly connected with an extension block; and the surface of the extending block is fixedly connected with a third-stage shaft body, and the surface of the third-stage shaft body is rotationally connected with a connecting plate. The rotating rod and the deflection rod which can rotate are arranged, the torsional springs are arranged for control, after the rotating rod and the deflection rod rotate, the rotating rod and the deflection rod can reset under the action of the torsional springs, and the door can be controlled to be opened towards the two sides in the whole process and can be rapidly closed.

Description

Technical Field

[0001] This utility model relates to the field of door opener technology, specifically a two-way door closer. Background Technology

[0002] A door closer is a device installed on the top of a door and the door frame. When the door is opened, the door closer is stretched, and when the door is opened and no longer pushed, the door closer pushes the door back to its original position. However, existing door closers, after being installed on the top of the door and the door frame, only allow the door to open in one direction. For some doors that need to open in both directions and also need to close automatically, this type of door closer installed on the top of the door cannot solve the problem. Therefore, those skilled in the art have provided a two-way door closer to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this invention is to provide a two-way door closer to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A two-way door closer includes a mounting plate, one end of which is fixedly connected to a main shaft housing. A main shaft is fixedly connected inside the main shaft housing. A rotating rod is sleeved on the surface of the main shaft. The other end of the rotating rod extends to the surface of the mounting plate and is fixedly connected to a secondary shaft. A deflecting rod is sleeved on the surface of the secondary shaft. A sliding rod is slidably arranged inside the deflecting rod. One end of the sliding rod extends to the outside of the deflecting rod and is fixedly connected to an extension block. A tertiary shaft is fixedly connected to the surface of the extension block. A connecting plate is rotatably connected to the surface of the tertiary shaft.

[0006] As a further embodiment of this utility model: two first torsion springs are sleeved on the surface of the main shaft, and the helical directions of the two first torsion springs are opposite, with the two ends of the first torsion springs respectively fixed to the surface of the main shaft and the surface of the rotating rod.

[0007] As a further embodiment of this utility model: two second torsion springs are sleeved on the surface of the secondary shaft, and the helical directions of the two second torsion springs are opposite. The two ends of the second torsion springs are respectively fixed to the surface of the secondary shaft and the surface of the deflection rod.

[0008] As a further embodiment of this utility model: a stop is provided at one end of the sliding rod near the secondary shaft, and a long spring is sleeved on the surface of the sliding rod, with the two ends of the long spring respectively fixed to the surface of the stop and the inner wall of the deflection rod.

[0009] As a further embodiment of this utility model: the interior of the main shaft housing is provided with an inclined surface, the inclined surface is symmetrically located on both sides of the rotating rod, and the included angle between the inclined surface and the side of the rotating rod is 30°.

[0010] As a further improvement of this utility model, the rotation angle of the deflection rod is -90° to 90°.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By setting up rotatable rotating rods and deflecting rods, each controlled by a torsion spring, the rotating rods and deflecting rods can reset under the action of the torsion springs after rotation. Two torsion springs of the same type are provided with opposite spiral directions, ensuring that the rotating rods and deflecting rods can reset after rotating to either side. A sliding rod is also provided to extend the distance between the main shaft and the third-stage shaft. The sliding rod can also be reset by a long spring. The entire process allows the door to open to both sides and close quickly, enabling the door closer installed on the top of the door to achieve the effect of opening and closing the door from both sides. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a two-way door closer;

[0014] Figure 2 This is a schematic diagram of the internal structure of a two-way door closer.

[0015] In the diagram: 1. Mounting plate; 2. Main spindle housing; 3. Main spindle; 4. Rotating rod; 5. Secondary spindle; 6. Deflection rod; 7. Extension block; 8. Tertiary spindle; 9. Connecting plate; 10. Sliding rod; 11. Long spring; 12. First torsion spring; 13. Second torsion spring; 14. Inclined surface. Detailed Implementation

[0016] Please see Figures 1-2 In this embodiment of the present invention, a two-way door closer includes a mounting plate 1. One end of the mounting plate 1 is fixedly connected to a main shaft housing 2. A main shaft 3 is fixedly connected inside the main shaft housing 2. A rotating rod 4 is sleeved on the surface of the main shaft 3. The other end of the rotating rod 4 extends to the surface of the mounting plate 1 and is fixedly connected to a secondary shaft 5. A deflection rod 6 is sleeved on the surface of the secondary shaft 5. A sliding rod 10 is slidably arranged inside the deflection rod 6. One end of the sliding rod 10 extends to the outside of the deflection rod 6 and is fixedly connected to an extension block 7. A tertiary shaft 8 is fixedly connected to the surface of the extension block 7. A connecting plate 9 is rotatably connected to the surface of the tertiary shaft 8.

[0017] Preferably, two first torsion springs 12 are sleeved on the surface of the main shaft 3, and the helical directions of the two first torsion springs 12 are opposite. The two ends of the first torsion springs 12 are respectively fixed to the surface of the main shaft 3 and the surface of the rotating rod 4.

[0018] Preferably, two second torsion springs 13 are sleeved on the surface of the secondary shaft 5, and the two second torsion springs 13 have opposite helical directions. The two ends of the second torsion springs 13 are respectively fixed to the surface of the secondary shaft 5 and the surface of the deflection rod 6.

[0019] Preferably, a stop is provided at one end of the sliding rod 10 near the secondary shaft 5, and a long spring 11 is sleeved on the surface of the sliding rod 10. The two ends of the long spring 11 are respectively fixed to the surface of the stop and the inner wall of the deflection rod 6.

[0020] Preferably, the spindle housing 2 has an inclined surface 14 inside, which is symmetrically located on both sides of the rotating rod 4, and the included angle between the inclined surface 14 and the side of the rotating rod 4 is 30°.

[0021] Preferably, the rotation angle of the deflection rod 6 is -90° to 90°.

[0022] The working principle of this utility model is as follows: When using this bidirectional door closer, the mounting plate 1 can be installed on the upper surface of the door or the lower surface of the top of the door frame, while the corresponding connecting plate 9 is installed on the lower surface of the top of the door frame or the upper surface of the door. Screws or bolts can be used for fixing. When the bidirectional door needs to be opened, the door is pushed to rotate around the door hinge. At this time, the rotating rod 4 will rotate around the main shaft 3, causing the rotating rod 4 to gradually move towards the inclined plane 14. When the side surface of the rotating rod 4 contacts the inclined plane 14, the deflecting rod 6 will rotate... As the secondary shaft 5 rotates, the sliding rod 10 slides inside the deflection rod 6, causing the extension block 7 and the end of the deflection rod 6 to gradually move away. The long spring 11 is compressed, thus allowing the door to be fully opened. When the door is no longer blocked by the pushing force, the compression of the long spring 11 causes the second torsion spring 13 and the first torsion spring 12 to be subjected to torsional forces, which can cause the door to rotate in the opposite direction and quickly return to its original position. Furthermore, since there are two torsion springs 12 and 13 with opposite spiral directions, the door can also quickly return to its original position when it is pushed open in the opposite direction.

[0023] 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 two-way door closer, comprising a mounting plate (1), characterized in that: One end of the mounting plate (1) is fixedly connected to a main spindle housing (2), and a main spindle (3) is fixedly connected inside the main spindle housing (2). A rotating rod (4) is sleeved on the surface of the main spindle (3). The other end of the rotating rod (4) extends to the surface of the mounting plate (1) and is fixedly connected to a secondary spindle (5). A deflection rod (6) is sleeved on the surface of the secondary spindle (5). A sliding rod (10) is slidably arranged inside the deflection rod (6). One end of the sliding rod (10) extends to the outside of the deflection rod (6) and is fixedly connected to an extension block (7). A third-stage spindle (8) is fixedly connected to the surface of the extension block (7). A connecting plate (9) is rotatably connected to the surface of the third-stage spindle (8).

2. A two-way door closer according to claim 1, characterized in that: Two first torsion springs (12) are sleeved on the surface of the main shaft (3), and the two first torsion springs (12) have opposite helical directions. The two ends of the first torsion springs (12) are respectively fixed to the surface of the main shaft (3) and the surface of the rotating rod (4).

3. A two-way door closer according to claim 1, characterized in that: Two second torsion springs (13) are sleeved on the surface of the secondary shaft (5), and the two second torsion springs (13) have opposite helical directions. The two ends of the second torsion springs (13) are respectively fixed to the surface of the secondary shaft (5) and the surface of the deflection rod (6).

4. A two-way door closer according to claim 1, characterized in that: A stop is provided at one end of the sliding rod (10) near the secondary shaft (5), and a long spring (11) is sleeved on the surface of the sliding rod (10). The two ends of the long spring (11) are respectively fixed to the surface of the stop and the inner wall of the deflection rod (6).

5. A two-way door closer according to claim 1, characterized in that: The main shaft housing (2) has an inclined surface (14) inside. The inclined surface (14) is symmetrically located on both sides of the rotating rod (4). The included angle between the inclined surface (14) and the side of the rotating rod (4) is 30°.

6. A two-way door closer according to claim 1, characterized in that: The rotation angle of the deflection rod (6) is -90° to 90°.

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