A built-in electric door closer driving mechanism

Abstract

The utility model discloses a built-in electric door closer driving mechanism, comprising a shell, a dustproof net is fixedly connected to one side of the shell, a bottom plate is arranged at the bottom of the shell, connecting rods are fixedly connected at four corners of one adjacent side of the shell, a fixing plate is fixedly connected to the top of the bottom plate, a driving motor is fixedly connected to the inside of the fixing plate, a screw is fixedly connected to the output end of the driving motor, the driving motor can drive two screws to rotate at the same time, so that the moving blocks move in opposite directions at the same time, thereby driving the control rod to move, so that the two door leaves are opened and closed at the same time, reducing the space occupied by the installation of the electric door closer and the use cost, and increasing the working efficiency of the electric door closer, pressing the pressing plate so that the guide column pushes the card plate to separate from the shell, and then the sliding plate and the connecting rod slide, and the bottom plate drives the driving mechanism to move downward and is exposed to the outside, so that the staff can repair and replace the driving mechanism conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of door closers, and in particular relates to a built-in electric door closer driving mechanism. Background Art

[0002] Door closers usually refer to a device installed on a door to control the speed of the door's opening and closing and to keep the door in a certain position. It is mainly used in public buildings and residences to ensure safety, quietness and energy saving. Door closers can be controlled manually or electrically, and have a variety of styles and functions to suit different doors and installation requirements. The working principle of a door closer is to compress gas (usually nitrogen) into a sealed container through a compressor, which is connected to the door. The gas is released through a pressure reducing valve to generate thrust or pull, thereby keeping the door in a set position. When the door is pushed by an external force beyond the set opening angle, the door closer will automatically start to close the door to the set position and maintain it.

[0003] The driving mechanism of the existing electric door closer is fixedly installed in the door closer housing. If the driving mechanism is damaged, the entire electric door closer needs to be disassembled and the driving mechanism needs to be repaired and replaced, which increases the repair time and reduces the working efficiency of the door closer. In addition, it is difficult for the existing driving mechanism to control two door leaves at the same time. Therefore, in a double-opening swing door, two swing door machines are usually required or multiple sets of linkage accessories are used to connect the two door leaves so that the two door leaves can be automatically opened and closed at the same time, which increases the cost of use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a built-in electric door closer driving mechanism to solve the problem that the driving mechanism of the existing electric door closer proposed in the above background technology is fixedly installed in the door closer housing. If the driving mechanism is damaged, the entire electric door closer needs to be disassembled, and the driving mechanism needs to be repaired and replaced, which increases the repair time and reduces the working efficiency of the door closer. In addition, the existing driving mechanism is difficult to control two door leaves at the same time. Therefore, two door machines are usually required in a double-opening swing door, or multiple sets of linkage accessories are used to connect the two door leaves so that the two door leaves can be automatically opened and closed at the same time, which increases the cost of use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a built-in electric door closer driving mechanism, comprising a shell, a dust net is fixedly connected to one side of the shell, a bottom plate is arranged at the bottom of the shell, connecting rods are fixedly connected at the four corners of one adjacent side of the shell, a fixing plate is fixedly connected to the top of the bottom plate, a driving motor is fixedly connected to the fixed plate, a screw is fixedly connected to the output end of the driving motor, a moving block is symmetrically threadedly connected to the outer side of the screw, elastic pads are symmetrically fixedly connected to the two ends of the bottom plate, a clamping plate is fixedly connected to one side of the elastic pad, pressure plates are symmetrically arranged on both sides of the shell, and a control rod is arranged at the bottom of the moving block.

[0006] Preferably, fixing holes are provided at the four corners inside the shell.

[0007] Preferably, a first slide groove is provided inside the housing adjacent to the other side, a scraper is slidably connected inside the first slide groove, and the scraper and the dustproof net are slidably connected.

[0008] Preferably, the bottom of the connecting rod is fixedly connected to a limiting plate, and the bottom plate is slidably connected to the connecting rod via a sliding plate.

[0009] Preferably, both ends of the screw are rotatably connected to bearing seats, and the bearing seats and the sliding plate are fixedly connected.

[0010] Preferably, a second slide groove is symmetrically arranged on one side inside the base plate, the movable block and the second slide groove are slidably connected, pressure sensors are symmetrically fixedly connected on both sides of the movable block, a first spring is fixedly connected to one side of the pressure sensor, and a remote control signal receiver is fixedly connected to one side of the fixed plate.

[0011] Preferably, the clamping plate and the shell are in a clamping connection, a guide column is fixedly connected to one side of the pressure plate, and a second spring is fixedly connected between one side of the pressure plate and one side of the shell.

[0012] Preferably, a first rack is fixedly connected to the bottom of the moving block, the first rack is meshingly connected to the control rod, a second rack is meshingly connected to one end of the control rod, and a fixing bolt is fixedly connected to the bottom of the second rack.

[0013] Compared with the prior art, the utility model provides a built-in electric door closer drive mechanism, which has the following beneficial effects:

[0014] 1. The utility model sets a bottom plate, and the driving motor is installed on the top of the bottom plate through a fixing plate. The bottom plate is connected to the shell through a clamping plate and is installed at the bottom of the shell, so that the driving mechanism is installed inside the shell. The shell protects the driving mechanism. When the driving mechanism needs to be repaired and replaced, the pressing plate is pressed so that the guide column pushes the clamping plate to separate from the shell, and then the sliding plate and the connecting rod slide, and the bottom plate drives the driving mechanism to move downward and is exposed to the outside, which is convenient for the staff to repair and replace the driving mechanism. It is no longer necessary to disassemble the entire door closer, which reduces the maintenance time and improves the disassembly and assembly efficiency.

[0015] 2. The utility model sets a driving motor, which can drive the two screws to rotate at the same time, so that the moving blocks move in opposite directions at the same time, thereby driving the control rod to move, so that the two door leaves are opened and closed at the same time, reducing the space occupied by the installation of the electric door closer and the use cost, and increasing the working efficiency of the electric door closer. During the movement of the moving block, the first spring will squeeze the pressure sensor. When the pressure sensor detects that the opening and closing pressure is too large, it will transmit data to the driving motor, so as to control the speed of the output end of the driving motor, reduce the impact force of the two door leaves when opening and closing the door, and protect the door and the door frame.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the axonometric structure of one side of a built-in electric door closer driving mechanism proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the axonometric structure of the other side of a built-in electric door closer driving mechanism proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the dustproof net structure of a built-in electric door closer drive mechanism proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of a housing of a built-in electric door closer drive mechanism proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of a driving motor of a built-in electric door closer driving mechanism proposed by the utility model;

[0023] Figure 6 This is a schematic diagram of the bottom plate structure of a built-in electric door closer drive mechanism proposed by the utility model;

[0024] Figure 7 A schematic diagram of the control rod structure of a built-in electric door closer drive mechanism proposed by the utility model;

[0025] Figure 8 This is a schematic diagram of the pressure plate structure of a built-in electric door closer drive mechanism proposed by the utility model;

[0026] In the figure: housing 1, fixing hole 2, dustproof net 3, first slide groove 4, scraper 5, bottom plate 6, connecting rod 7, limit plate 8, sliding plate 9, fixing plate 10, driving motor 11, screw 12, bearing seat 13, moving block 14, second slide groove 15, first spring 16, remote control signal receiver 17, elastic pad 18, card plate 19, pressure plate 20, guide column 21, second spring 22, pressure sensor 23, first rack 24, control rod 25, second rack 26, fixing bolt 27. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-8The utility model provides a technical solution: a built-in electric door closer driving mechanism, including a shell 1, a dust screen 3 is fixedly connected to one side of the shell 1, a bottom plate 6 is arranged at the bottom of the shell 1, connecting rods 7 are fixedly connected to the four corners of the adjacent side of the shell 1, a fixing plate 10 is fixedly connected to the top of the bottom plate 6, a driving motor 11 is fixedly connected to the inside of the fixing plate 10, a screw 12 is fixedly connected to the output end of the driving motor 11, and a moving block 14 is symmetrically threadedly connected to the outer side of the screw 12. The driving motor 11 can drive the two screws 12 to rotate at the same time, so that the moving blocks 14 move in opposite directions at the same time, thereby driving the control rod 25 to move, so that the two door leaves are opened and closed at the same time, reducing electricity The space occupied by the dynamic door closer installation and the use cost are reduced, and the working efficiency of the electric door closer is increased. Elastic pads 18 are symmetrically fixedly connected to the two ends of the bottom plate 6, and a card plate 19 is fixedly connected to one side of the elastic pad 18. Pressing plates 20 are symmetrically arranged on both sides of the shell 1. A control rod 25 is arranged at the bottom of the moving block 14. When the driving mechanism needs to be repaired and replaced, the pressing plate 20 is pressed to make the guide column 21 push the card plate 19 to separate from the shell 1, and then the sliding plate 9 and the connecting rod 7 slide, and the bottom plate 6 drives the driving mechanism to move down and expose it to the outside, which is convenient for the staff to repair and replace the driving mechanism. There is no need to disassemble the entire door closer, which reduces the maintenance time and improves the disassembly and assembly efficiency.

[0029] In the present invention, preferably, fixing holes 2 are provided at the four corners inside the housing 1 .

[0030] In the utility model, preferably, a first slide groove 4 is provided on the other side adjacent to the inside of the shell 1, and a scraper 5 is slidably connected to the inside of the first slide groove 4. The scraper 5 and the dustproof net 3 are slidably connected to scrape off the dust on the surface of the dustproof net 3 to avoid clogging of the dustproof net 3, thereby increasing the heat dissipation and dustproof effect of the shell 1.

[0031] In the utility model, preferably, the bottom of the connecting rod 7 is fixedly connected to a limiting plate 8 , and the bottom plate 6 is slidably connected to the connecting rod 7 via a sliding plate 9 .

[0032] In the present invention, preferably, both ends of the screw rod 12 are rotatably connected with bearing seats 13, and the bearing seats 13 and the sliding plate 9 are fixedly connected.

[0033] In the utility model, preferably, a second slide groove 15 is symmetrically arranged on one side of the inner part of the bottom plate 6, the moving block 14 and the second slide groove 15 are slidably connected, pressure sensors 23 are symmetrically fixedly connected on both sides of the moving block 14, a first spring 16 is fixedly connected to one side of the pressure sensor 23, and a remote control signal receiver 17 is fixedly connected to one side of the fixed plate 10. During the movement of the moving block 14, the first spring 16 will squeeze the pressure sensor 23. When the pressure sensor 23 detects that the pressure for opening and closing the door is too large, it will transmit data to the drive motor 11, thereby controlling the rotation speed of the output end of the drive motor 11, reducing the impact force of the two door leaves when opening and closing the door, and protecting the door and the door frame.

[0034] In the present invention, preferably, the card plate 19 and the housing 1 are connected by a snap fit, a guide column 21 is fixedly connected to one side of the pressure plate 20, and a second spring 22 is fixedly connected between one side of the pressure plate 20 and one side of the housing 1.

[0035] In the utility model, preferably, a first rack 24 is fixedly connected to the bottom of the moving block 14, the first rack 24 and the control rod 25 are meshingly connected, a second rack 26 is meshingly connected to one end of the control rod 25, and a fixing bolt 27 is fixedly connected to the bottom of the second rack 26.

[0036] The working principle and use process of the utility model are as follows: when in use, the driving mechanism is first installed on the top of the bottom plate 6, and then the bottom plate 6 is connected with the shell 1 by the clamping plate 19 and installed at the bottom of the shell 1, so that the driving mechanism is installed inside the shell 1, and the shell 1 protects the driving mechanism. During use, the driving motor 11 can simultaneously drive the two screws 12 to rotate, so that the moving blocks 14 move in opposite directions at the same time, thereby driving the control rod 25 to move, so that the two door leaves are opened and closed at the same time, reducing the space occupied by the installation of the electric door closer and the use cost, and increasing the working efficiency of the electric door closer. During the movement of the moving block 14, the first spring 16 will press The force sensor 23 generates extrusion. When the pressure sensor 23 detects that the door opening and closing pressure is too large, it will transmit data to the drive motor 11, thereby controlling the rotation speed of the output end of the drive motor 11, reducing the impact force of the two door leaves when opening and closing the door, and protecting the door and door frame. When the drive mechanism needs to be repaired and replaced, the pressure plate 20 is pressed to make the guide column 21 push the card plate 19 to separate from the shell 1, and then the sliding plate 9 and the connecting rod 7 slide, and the bottom plate 6 drives the drive mechanism to move downward and expose it to the outside, which is convenient for the staff to repair and replace the drive mechanism. There is no need to disassemble the entire door closer, which reduces maintenance time and improves disassembly and assembly efficiency.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A built-in electric door closer drive mechanism, comprising a housing (1), characterized in that: A dust screen (3) is fixedly connected to one side of the inner part of the shell (1); a bottom plate (6) is arranged at the bottom of the shell (1); connecting rods (7) are fixedly connected at four corners of one adjacent side of the inner part of the shell (1); a fixing plate (10) is fixedly connected to the top of the bottom plate (6); a driving motor (11) is fixedly connected to the inner part of the fixing plate (10); a screw rod (12) is fixedly connected to the output end of the driving motor (11); a moving block (14) is symmetrically threadedly connected to the outer side of the screw rod (12); elastic pads (18) are symmetrically fixedly connected to the two ends of the inner part of the bottom plate (6); a clamping plate (19) is fixedly connected to one side of the elastic pad (18); pressure plates (20) are symmetrically arranged on both sides of the shell (1); and a control rod (25) is arranged at the bottom of the moving block (14).

2. A built-in electric door closer drive mechanism according to claim 1, characterized in that: Fixing holes (2) are provided at the four corners inside the shell (1).

3. The built-in electric door closer drive mechanism according to claim 1, characterized in that: A first slide groove (4) is provided inside the housing (1) adjacent to the other side, a scraper (5) is slidably connected inside the first slide groove (4), and the scraper (5) and the dustproof net (3) are slidably connected.

4. The built-in electric door closer drive mechanism according to claim 1, characterized in that: The bottom of the connecting rod (7) is fixedly connected to a limiting plate (8), and the bottom plate (6) is slidably connected to the connecting rod (7) via a sliding plate (9).

5. The built-in electric door closer drive mechanism according to claim 1, characterized in that: The two ends of the screw rod (12) are rotatably connected to bearing seats (13), and the bearing seats (13) and the sliding plate (9) are fixedly connected.

6. A built-in electric door closer drive mechanism according to claim 1, characterized in that: A second slide groove (15) is symmetrically arranged on one side inside the bottom plate (6); the moving block (14) and the second slide groove (15) are slidably connected; pressure sensors (23) are symmetrically fixedly connected on both sides of the moving block (14); a first spring (16) is fixedly connected to one side of the pressure sensor (23); and a remote control signal receiver (17) is fixedly connected to one side of the fixed plate (10).

7. The built-in electric door closer drive mechanism according to claim 1, characterized in that: The clamping plate (19) and the housing (1) are in a clamping connection, one side of the pressure plate (20) is fixedly connected to a guide column (21), and one side of the pressure plate (20) and one side of the housing (1) are fixedly connected to a second spring (22).

8. The built-in electric door closer drive mechanism according to claim 1, characterized in that: The bottom of the moving block (14) is fixedly connected with a first rack (24), the first rack (24) and the control rod (25) are meshingly connected, one end of the control rod (25) is meshingly connected with a second rack (26), and the bottom of the second rack (26) is fixedly connected with a fixing bolt (27).

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