Fast-assembly door closer

Abstract

The utility model relates to the technical field of door closers, and discloses a fast-assembly type door closer which comprises a door closer body, a bottom plate is arranged on the bottom face of the door closer body and fixedly installed on the top surface of a door, a rotating shaft is arranged on the upper surface of the door closer body, a rotating arm is hinged to the surface of the rotating shaft, and the rotating arm is fixedly installed on the rotating shaft. A telescopic arm is hinged to the end, away from the rotating shaft, of the rotating arm, a hinge piece is hinged to the extension end of the telescopic arm, the hinge piece is fixedly installed on the surface of a door frame, and a positioning mechanism is arranged between the door closer body and the bottom plate. By arranging the bottom plate, the bottom plate is installed and fixed to the surface of a door firstly, the bottom plate is lighter than the door closer body in weight and is pre-fixed through the fixing bolts or the double-faced adhesive tape, the whole process is convenient to operate and implement, then the door closer body is hung in the sliding grooves through the hanging lugs on the two sides of the door closer body, and the door closer body is transversely moved, so that the door closer body is fixed. And in addition, the fixing block and the positioning plate are fixed through screws, so that the door closer main body is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of door closers, in particular to a quick-install door closer. Background Art

[0002] The working principle of a door closer is as follows: when the door is opened, the door body drives the connecting rod, rotating the transmission gear, and driving the rack plunger to the right. As the plunger moves rightward, the spring is compressed, and the hydraulic oil in the right chamber is also pressurized. The check valve ball on the left side of the plunger opens under the action of the oil pressure, and the hydraulic oil in the right chamber flows through the check valve into the left chamber. When the door is opened, the elastic potential energy accumulated by the spring during the opening process is released, pushing the plunger to the left, driving the transmission gear and the door closer connecting rod to rotate, closing the door. A common door closer is an external door-mounted top door closer. During installation, the door closer body is usually fixed to the top of the door opening surface with screws. However, this door closer is relatively large and heavy. During installation, one hand is required to support the door closer body while the other hand is used to install the door closer with screws or nails, which is not very convenient. Therefore, those skilled in the art have provided a quick-install door closer to solve the problems raised in the above background art. Utility Model Content

[0003] The purpose of the present invention is to provide a quick-install door closer to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A quick-install door closer comprises a door closer body, the bottom surface of the door closer body is provided with a base plate, the base plate is fixedly mounted on the top surface of the door, the upper surface of the body is provided with a rotating shaft, the surface of the rotating shaft is hinged with a rotating arm, the end of the rotating arm away from the rotating shaft is hinged with a telescopic arm, the extended end of the telescopic arm is hinged with a hinge, the hinge is fixedly mounted on the surface of the door frame, and a positioning mechanism is provided between the door closer body and the base plate.

[0006] As a further solution of the present invention: sliding grooves are provided on the upper and lower sides of the base plate, and hanging ears are fixedly connected to both sides of the bottom surface of the door closer body, and the hanging ears are slidably connected to the inside of the sliding grooves. A positioning plate is fixedly connected to the surface of the base plate close to the door closer body, and positioning holes are equidistantly provided on the surface of the positioning plate. Fixed blocks are fixed to both ends of the door closer body, and screw holes are provided through the surface of the fixing blocks.

[0007] As a further solution of the present invention: both left and right ends of the bottom plate are provided with mounting grooves, fixing bolts are installed inside the mounting grooves, and the heads of the fixing bolts are larger than the width of the mounting grooves.

[0008] As a further solution of the present invention: the installation groove is a U-shaped structure, and the U-shaped opening of the installation groove extends to the edge of the bottom plate.

[0009] As a further solution of the present invention: a double-sided adhesive tape is provided on the surface of the bottom plate close to the door.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] By setting up the base plate, the base plate is first installed and fixed to the surface of the door. The base plate is lighter than the door closer body and is pre-fixed with fixing bolts or double-sided adhesive stickers. The whole process is easy to operate and implement. Then, it is hung on the inside of the slide groove through the hanging ears on both sides of the door closer body. By moving the door closer body laterally, its position can be adjusted. Compared with the disadvantage of traditional door-hanging door closers that cannot be adjusted during installation, the adjustable door closer body is set, which can be adjusted in time during installation to avoid the disadvantage of needing to reinstall when the installation position is wrong, and the screw holes installed on the door surface will not be exposed. The fixing block and the positioning plate are fixed by screws, so that the door closer body is fixed, and the whole installation process is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of a quick-install door closer;

[0013] Figure 2 The figure is a schematic diagram of the structure of the bottom plate of a quick-install door closer.

[0014] In the figure: 1. Door closer body; 2. Bottom plate; 3. Mounting slot; 4. Rotating shaft; 5. Rotating arm; 6. Telescopic arm; 7. Hinge; 8. Slide; 9. Positioning plate; 10. Positioning hole; 11. Fixing block. DETAILED DESCRIPTION

[0015] See also Figures 1-2 In an embodiment of the present invention, a quick-install door closer includes a door closer body 1, a bottom plate 2 is provided on the bottom surface of the door closer body 1, and the bottom plate 2 is fixedly installed on the top surface of the door, and a rotating shaft 4 is provided on the upper surface of the body 1. A rotating arm 5 is hinged on the surface of the rotating shaft 4, and a telescopic arm 6 is hinged at one end of the rotating arm 5 away from the rotating shaft 4. The extended end of the telescopic arm 6 is hinged with a hinge 7, and the hinge 7 is fixedly installed on the surface of the door frame. A positioning mechanism is provided between the door closer body 1 and the bottom plate 2.

[0016] Preferably, the upper and lower sides of the base plate 2 are provided with sliding grooves 8, and both sides of the bottom surface of the door closer main body 1 are fixed with hanging ears, which are slidably connected to the inside of the sliding grooves 8. The surface of the base plate 2 close to the door closer main body 1 is fixed with a positioning plate 9, and the surface of the positioning plate 9 is equidistantly provided with positioning holes 10. Both ends of the door closer main body 1 are fixed with fixing blocks 11, and the surface of the fixing block 11 is provided with screw holes, which are installed in the screw holes of the fixing block 11 with screws, and the position of the door closer main body 1 is adjusted by sliding the door closer main body 1, and the screws are screwed into the positioning holes 10 corresponding to the surface of the positioning plate 9, thereby fixing the door closer main body 1 to the surface of the base plate 2.

[0017] Preferably, both left and right ends of the bottom plate 2 are provided with mounting grooves 3 , and fixing bolts are installed inside the mounting grooves 3 , and the heads of the fixing bolts are larger than the width of the mounting grooves 3 .

[0018] In the first embodiment, the mounting groove 3 is a U-shaped structure, and the U-shaped opening of the mounting groove 3 extends to the edge of the base plate 2. The fixing bolt can be installed to the predetermined position on the door surface first, and the fixing bolt is not completely screwed into the door. Then, through the opening of the mounting groove 3, the base plate 2 is tilted and hung to the position of the fixing bolt. At this time, the base plate 2 is preliminarily hung, and then the fixing bolt is tightened to fix the base plate 2, and then the door closer body 1 is installed on the front side of the base plate 2 from one side.

[0019] When installing the block-type door closer, first install the fixing bolts to the predetermined position on the door surface, without completely screwing the fixing bolts into the door, and then tilt the base plate 2 through the opening of the mounting groove 3 and hang it on the fixing bolt position. At this time, the base plate 2 is preliminarily hung, and then the fixing bolts are tightened to fix the base plate 2. Then, the door closer body 1 is installed to the front side of the base plate 2 from one side, and the position of the door closer body 1 is adjusted by sliding the door closer body 1, and the screws are screwed into the positioning holes 10 corresponding to the surface of the positioning plate 9, so as to fix the door closer body 1 to the surface of the base plate 2, and then the hinge 7 is fixed to the surface of the door frame. The whole process does not require holding the door closer body 1 for installation. The base plate 2 is installed first, and then the door closer body 1 is installed. The installation operation of the door closer body 1 can be performed with both hands, and the whole installation process is more convenient.

[0020] In another embodiment, different from the first embodiment, the U-shaped mounting groove 3 is not provided, the mounting groove 3 is a common bolt hole, and a double-sided adhesive tape is provided on the surface of the bottom plate 2 close to the door.

[0021] You can directly tear off the protective layer on the double-sided adhesive surface of the bottom plate 2 close to the door surface, stick the bottom plate 2 to the predetermined position on the door surface, and then screw the fixing bolts into the installation groove 3 to complete the fixation of the bottom plate 2. Then you can install the door closer body 1.

[0022] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A quick-install door closer, comprising a door closer body (1), characterized in that: The bottom surface of the door closer body (1) is provided with a bottom plate (2), and the bottom plate (2) is fixedly mounted on the top surface of the door. The upper surface of the body (1) is provided with a rotating shaft (4), and the surface of the rotating shaft (4) is hinged with a rotating arm (5), and the end of the rotating arm (5) away from the rotating shaft (4) is hinged with a telescopic arm (6), and the extended end of the telescopic arm (6) is hinged with a hinge (7), and the hinge (7) is fixedly mounted on the surface of the door frame. A positioning mechanism is provided between the door closer body (1) and the bottom plate (2).

2. The quick-install door closer according to claim 1, characterized in that: The upper and lower side surfaces of the base plate (2) are provided with sliding grooves (8), and the bottom surface of the door closer body (1) is fixed with hanging ears on both sides, and the hanging ears are slidably connected to the inside of the sliding grooves (8). The surface of the base plate (2) close to the door closer body (1) is fixed with a positioning plate (9), and the surface of the positioning plate (9) is provided with positioning holes (10) at equal intervals. Both ends of the door closer body (1) are fixed with fixing blocks (11), and the surface of the fixing block (11) is provided with screw holes.

3. The quick-install door closer according to claim 1, characterized in that: Both left and right ends of the bottom plate (2) are provided with mounting grooves (3), and fixing bolts are installed inside the mounting grooves (3), and the heads of the fixing bolts are larger than the width of the mounting grooves (3).

4. The quick-install door closer according to claim 3, characterized in that: The installation groove (3) is a U-shaped structure, and the U-shaped opening of the installation groove (3) extends to the edge of the bottom plate (2).

5. The quick-install door closer according to claim 3, characterized in that: The surface of the bottom plate (2) close to the door is provided with a double-sided adhesive tape.

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