Self-adaptive door body weight adjusting door closer

Abstract

The utility model discloses a door closer capable of adjusting the weight of a self-adaptive door body, and relates to the technical field of door closers. The self-adaptive locking device comprises a shell, a self-adaptive assembly and a locking assembly, the top of an inner cavity of the shell is movably connected with a rotating rod, the surface of the rotating rod is fixedly connected with a reset rod, the self-adaptive assembly comprises two gear rings, the inner walls of the gear rings are fixedly connected with the rotating rod, and the inner walls of the gear rings are fixedly connected with the locking assembly. The top and the bottom of the right side of the inner cavity of the shell are fixedly connected with reset mechanisms. Through the self-adaptive assembly, the thrust of the reset rod can be adjusted according to the weight of the door plate, a normal light door plate achieves the reset function only through the reset mechanism, when the door plate is heavy, reset work cannot be completed only through the reset mechanism, at the moment, the pressurization mechanism is started, the pressurization mechanism is utilized to pressurize the interior of the reset mechanism, and the reset function is achieved. The reset mechanism can control the toothed plate to move, the toothed plate and the gear ring are used for moving the reset rod, and the reset rod can reset the door plate.

Description

An adaptive door weight adjustment door closer Technical Field

[0001] This utility model belongs to the field of door closer technology, and in particular relates to an adaptive door weight adjustment door closer. Background Technology

[0002] A door closer is a type of hardware building material, a device composed of a metal spring and hydraulic damping. It is usually installed on the upper part of the door leaf. When the door is opened, the door closer can automatically close the door through compression and release, ensuring that the door returns to its initial position accurately and in a timely manner. The door closer can control the closing process, allowing various functional indicators of the closing process to be adjusted according to human needs. In addition, the door closer can also protect the door and door frame from violent impacts caused by external factors.

[0003] However, existing door closers have the following problems: most mechanical door closers on the market are designed with fixed parameters and cannot sense changes in the actual weight of the door. Door closers need to adjust the spring pressure or hydraulic valve through screws, and cannot automatically match the closing force according to the weight of the door. This results in a large impact when closing light doors and a poor closure when closing heavy doors, which affects their applicability and is not conducive to use.

[0004] To address these issues, we provide an adaptive door weight adjustment door closer. Summary of the Invention

[0005] The purpose of this invention is to provide an adaptive door weight adjustment door closer. Through the cooperation of the adaptive component and the locking component, it solves the problem that the existing door closer cannot adjust its reset thrust according to the weight of the door panel, resulting in large impact when closing light doors and poor closure of heavy doors.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to an adaptive door weight adjustment door closer, comprising a housing, an adaptive component, and a locking component. A rotating rod is movably connected to the top of the housing's inner cavity, and a reset rod is fixedly connected to the surface of the rotating rod. The adaptive component includes two toothed rings, the inner walls of which are fixedly connected to the rotating rod. Reset mechanisms are fixedly connected to the top and bottom of the right side of the housing's inner cavity. A toothed plate is provided within the housing's inner cavity, the front side of which is fixedly connected to the reset mechanism. A torque sensor is fixedly connected to the bottom of the rotating rod. A pressure-boosting mechanism is fixedly connected to the right side of the housing's inner cavity, the top and bottom of which communicate with the reset mechanism. The locking component includes a control housing, the rear side of which is fixedly connected to the inner wall of the housing. An electric push rod is fixedly connected to the bottom of the control housing's inner cavity, and a fastening mechanism is provided at the top of the output end of the electric push rod, the front side of which extends through the inner cavity of the housing.

[0008] The present invention is further configured such that the reset mechanism includes an air tube, the right side of which is fixedly connected to the inner wall of the housing, a piston is provided in the inner cavity of the air tube, a spring is fixedly connected to the right side of the piston, and a pressure rod is fixedly connected to the left side of the piston. The left side of the pressure rod passes through the air tube and is fixedly connected to the toothed plate. The piston can push the air inside the air tube into the air chamber. The spring can reset after compression and push the piston to move. The pressure rod and the toothed plate cooperate to control the working height of the piston.

[0009] The present invention is further configured such that the pressurizing mechanism includes an air chamber, the right side of which is fixedly connected to the inner wall of the housing, a rubber plate is provided in the inner cavity of the air chamber, a motor is fixedly connected to the front side of the pressurizing mechanism, a screw is fixedly connected to the left side of the output end of the motor, a telescopic rod is threadedly connected to the surface of the screw, the side of the telescopic rod away from the motor passes through the air chamber and is fixedly connected to the rubber plate, the rubber plate is used to compress the air inside the air chamber and make it re-enter the air pipe, and the motor and the screw cooperate to control the working height of the telescopic rod and the rubber plate.

[0010] The present invention is further configured such that a sliding rod is fixedly connected to the top and bottom of the front side of the air chamber, and a sliding sleeve is slidably connected to the surface of the sliding rod. The opposite sides of the two sliding sleeves are fixedly connected to the telescopic rod. The sliding rod and the sliding sleeve can limit the telescopic rod so that it can move smoothly left and right and prevent it from rotating.

[0011] The present invention is further configured such that the fastening mechanism includes a top block, the bottom of which is fixedly connected to the output end of the electric push rod, the top of which is provided with a sloping locking block, the rear side of which is fixedly connected to a magnet, the front side of which extends through to the inner cavity of the housing, the top block being used to press the sloping surface of the sloping locking block, the sloping surface of which is provided on one side and a locking groove on the other side, which can engage with the gear ring through the locking groove to prevent it from rotating, and the magnet being able to reset the sloping locking block when it is not pressed.

[0012] The present invention is further configured such that limit grooves are provided on both sides of the rear side of the top block, and limit strips are provided in the inner cavity of the limit grooves. The rear side of the limit strips is fixedly connected to the inner wall of the control shell. The limit grooves and limit strips are used to limit the top block so that it can move up and down smoothly and prevent it from deviating when squeezing the inclined block.

[0013] The present invention is further configured such that a placement opening is provided on the front side of the reset rod, a protective pad is fixedly connected to the rear side of the reset rod, and a controller is fixedly connected to the front side of the housing. The placement opening allows the reset rod to be in a bent state so that it can accumulate thrust to reset the door panel. The protective pad can protect the door panel and prevent the reset rod from scratching the door panel.

[0014] The present invention is further provided that fixing plates are fixedly connected to both sides of the top and bottom of the housing, and fixing holes are provided on the front side of the fixing plates. The fixing plates can cooperate with the fixing holes to install and fix the housing, so that it can be firmly fixed to one side of the door frame.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model, through an adaptive component, can adjust the thrust of the reset rod according to the weight of the door panel. Normally, lightweight door panels only achieve the reset function through the reset mechanism. When the door panel is heavy, the reset mechanism alone cannot complete the reset work. At this time, the pressurization mechanism is activated to apply pressure to the inside of the reset mechanism, so that the reset mechanism can control the movement of the toothed plate. The toothed plate and the toothed ring move the reset rod, so that the reset rod can reset the door panel.

[0017] 2. This utility model uses a locking component that works with a gear ring to limit the rotation rod, preventing the reset rod from resetting the door panel and keeping the door panel in an open state for easy handling of items. This prevents the door panel from resetting after being opened during handling. The fastening mechanism controlled by the electric push rod locks the gear ring to prevent the reset rod from moving and to avoid it squeezing the door panel. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 is a perspective view of an adaptive door weight adjustment door closer;

[0020] Figure 2 is a rear view of an adaptive door weight adjustment door closer;

[0021] Figure 3 is a cross-sectional view of the control shell in an adaptive door weight adjustment door closer;

[0022] Figure 4 is a cross-sectional view of the housing in an adaptive door weight adjustment door closer;

[0023] Figure 5 is a cross-sectional view of the air tube and air chamber in an adaptive door weight adjustment door closer.

[0024] In the attached diagram: 1. Housing; 2. Rotating rod; 3. Reset rod; 4. Adaptive component; 41. Gear ring; 42. Reset mechanism; 43. Gear plate; 44. Torque sensor; 45. Pressurization mechanism; 5. Locking component; 51. Control housing; 52. Electric actuator; 53. Fastening mechanism; 421. Air pipe; 422. Piston; 423. Spring; 424. Pressure rod; 451. Air chamber; 452. Rubber plate; 453. Motor; 454. Screw; 455. Telescopic rod; 531. Top block; 532. Inclined locking block; 533. Magnet; 6. Fixing plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please refer to Figures 1-5. This utility model is an adaptive door weight adjustment door closer, including a housing 1, an adaptive component 4, and a locking component 5. A rotating rod 2 is movably connected to the top of the inner cavity of the housing 1, and a reset rod 3 is fixedly connected to the surface of the rotating rod 2. The adaptive component 4 includes two toothed rings 41, the inner wall of which is fixedly connected to the rotating rod 2. A reset mechanism 42 is fixedly connected to the top and bottom of the right side of the inner cavity of the housing 1. A toothed plate 43 is provided in the inner cavity of the housing 1, and the front side of the toothed plate 43 is fixedly connected to the reset mechanism 42. A torque sensor 44 is fixedly connected to the bottom of the rotating rod 2. A pressure boosting mechanism 45 is fixedly connected to the right side of the inner cavity of the housing 1, and the top and bottom of the pressure boosting mechanism 45 are connected to the reset mechanism 42. The locking component 5 includes a control housing 51, the rear side of which is fixedly connected to the inner wall of the housing 1. An electric push rod 52 is fixedly connected to the bottom of the inner cavity of the control housing 51. A fastening mechanism 53 is provided at the top of the output end of the electric push rod 52, and the front side of the fastening mechanism 53 extends through the inner cavity of the housing 1.

[0028] Specifically: the rotating rod 2 facilitates the rotation of the reset rod 3; the gear ring 41 cooperates with the gear plate 43 to control the position of the reset rod 3; the reset mechanism 42 enables the reset rod 3 to be moved and reset; the torque sensor 44 detects the rotation of the rotating rod 2; when the torque of the rotating rod 2 increases and the reset mechanism 42 alone cannot control the rotation of the reset rod 3, the pressurizing mechanism 45 pressurizes the inside of the reset mechanism 42, and the air pressure lifts the piston 422 to reduce the pressure on the spring 423, so that the reset rod 3 can rotate normally to control the door panel reset.

[0029] Example 2

[0030] Please refer to Figures 1-5. Based on Embodiment 1, the reset mechanism 42 includes an air pipe 421. The right side of the air pipe 421 is fixedly connected to the inner wall of the housing 1. A piston 422 is provided in the inner cavity of the air pipe 421. A spring 423 is fixedly connected to the right side of the piston 422. A pressure rod 424 is fixedly connected to the left side of the piston 422. The left side of the pressure rod 424 passes through the air pipe 421 and is fixedly connected to the toothed plate 43. The pressurization mechanism 45 includes an air chamber 451. The right side of the air chamber 451 is fixedly connected to the inner wall of the housing 1. A rubber plate 452 is provided in the inner cavity of the air chamber 451. A motor 453 is fixedly connected to the front side of the pressurization mechanism 45. A screw 454 is fixedly connected to the left side of the output end of the motor 453. A telescopic rod 455 is threaded onto the surface of the screw 454. The side of the telescopic rod 455 away from the motor 453 passes through the air chamber 451 and is fixedly connected to the rubber plate 452. The top and bottom of the front side of 451 are fixedly connected to sliding rods, and the surfaces of the sliding rods are slidably connected to sliding sleeves. The opposite sides of the two sliding sleeves are fixedly connected to the telescopic rod 455. The fastening mechanism 53 includes a top block 531. The bottom of the top block 531 is fixedly connected to the output end of the electric push rod 52. The top of the top block 531 is provided with a sloping locking block 532. The rear side of the sloping locking block 532 is fixedly connected to a magnet 533. The front side of the sloping locking block 532 extends into the inner cavity of the housing 1. Limiting grooves are opened on both sides of the rear side of the top block 531. Limiting strips are provided in the inner cavity of the limiting grooves. The rear side of the limiting strips is fixedly connected to the inner wall of the control housing 51. The front side of the reset rod 3 is provided with a placement opening. The rear side of the reset rod 3 is fixedly connected to a protective pad. The front side of the housing 1 is fixedly connected to a controller. The top and bottom sides of the housing 1 are fixedly connected to fixing plates 6. The front side of the fixing plates 6 is provided with fixing holes.

[0031] Specifically: Piston 422 pushes air from inside air tube 421 into air chamber 451; spring 423 returns to its original position after compression, pushing piston 422 to move; pressure rod 424, in conjunction with toothed plate 43, controls the working height of piston 422; rubber plate 452 compresses air from inside air chamber 451, causing it to re-enter air tube 421; motor 453, in conjunction with screw 454, controls the working height of telescopic rod 455 and rubber plate 452; sliding rod and sliding sleeve limit telescopic rod 455, allowing it to move smoothly left and right and preventing it from rotating; top block 531 compresses the inclined surface of inclined plate block 532. The inclined block 532 has an inclined surface on one side and a slot on the other side. It can engage with the gear ring 41 through the slot to prevent it from rotating. The magnet 533 can reset the inclined block 532 when it is not squeezed. The limiting groove and the limiting strip are used to limit the top block 531 so that it can move up and down smoothly and prevent it from deviating when squeezing the inclined block 532. The placement opening can make it easy for the reset rod 3 to be in a bent state so that it can accumulate thrust to reset the door panel. The protective pad can protect the door panel and prevent the reset rod 3 from scratching the door panel. The fixing piece 6 can cooperate with the fixing hole to install and fix the housing 1, so that it can be firmly fixed to one side of the door frame.

[0032] The working principle of this utility model is as follows: When the door panel needs to be closed, the reset rod 3 drives the gear ring 41 to rotate through the rotating rod 2. The gear ring 41 meshes with the gear plate 43, driving the gear plate 43 to move. The gear plate 43 pushes the pressure rod 424 to compress the spring 423 and causes the piston 422 to slide inside the air pipe 421, delivering the air inside the air pipe 421 to the air chamber 451. At the same time, the spring 423 accumulates elastic potential energy to provide the reset thrust. During reset, only the thrust generated by the spring 423 is needed to reset the lightweight door panel. When the door panel is heavy, the torque sensor 44 detects that the torque of the rotating rod 2 exceeds the threshold. The controller starts the motor 453 to drive the screw 454 to rotate. The screw 454 drives the telescopic rod 455 to push the rubber plate 452 to compress the air inside the air chamber 451. High-pressure airflow enters the air pipe 421 and assists the piston 422 to move, reducing the pressure on the spring 423 to enhance the thrust of the reset rod 3. When it is necessary to fix the door panel for moving items, the electric push rod 52 drives the top block 531 to rise. The top block 531 moves and squeezes the inclined plate block 532, causing the control magnet 533 to no longer adhere to the inner wall of the control shell 51. At the same time, the inclined plate block 532 engages with the teeth on the surface of the gear ring 41. At this time, the gear ring 41 is fixed and the rotating rod 2 cannot rotate. The reset rod 3 stops applying pressure to the door panel. After the moving is completed, the electric push rod 52 retracts so that the top block 531 no longer squeezes the inclined plate block 532. The attraction force of the magnet 533 drives the inclined plate block 532 to reset and no longer contact the gear ring 41. The reset rod 3 resumes its automatic reset function.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. An adaptive door weight-adjustable door closer, comprising a housing (1), an adaptive component (4), and a locking component (5), characterized in that: A rotating rod (2) is movably connected to the top of the inner cavity of the housing (1), and a reset rod (3) is fixedly connected to the surface of the rotating rod (2); the adaptive component (4) includes two gear rings (41), the inner wall of the gear rings (41) is fixedly connected to the rotating rod (2), a reset mechanism (42) is fixedly connected to the top and bottom of the right side of the inner cavity of the housing (1), a toothed plate (43) is provided in the inner cavity of the housing (1), the front side of the toothed plate (43) is fixedly connected to the reset mechanism (42), and a torque sensor is fixedly connected to the bottom of the rotating rod (2). The device (44) has a pressure boosting mechanism (45) fixedly connected to the right side of the inner cavity of the housing (1), and the top and bottom of the pressure boosting mechanism (45) are connected to the reset mechanism (42); the locking assembly (5) includes a control housing (51), the rear side of the control housing (51) is fixedly connected to the inner wall of the housing (1), the bottom of the inner cavity of the control housing (51) is fixedly connected to an electric push rod (52), and the top of the output end of the electric push rod (52) is provided with a fastening mechanism (53), and the front side of the fastening mechanism (53) extends through the inner cavity of the housing (1).

2. The adaptive door weight adjustment door closer according to claim 1, characterized in that: The reset mechanism (42) includes an air pipe (421), the right side of which is fixedly connected to the inner wall of the housing (1), a piston (422) is provided in the inner cavity of the air pipe (421), a spring (423) is fixedly connected to the right side of the piston (422), and a pressure rod (424) is fixedly connected to the left side of the piston (422). The left side of the pressure rod (424) passes through the air pipe (421) and is fixedly connected to the toothed plate (43).

3. The adaptive door weight adjustment door closer according to claim 1, characterized in that: The pressurizing mechanism (45) includes an air chamber (451), the right side of which is fixedly connected to the inner wall of the housing (1). A rubber plate (452) is provided in the inner cavity of the air chamber (451). A motor (453) is fixedly connected to the front side of the pressurizing mechanism (45). A screw (454) is fixedly connected to the left side of the output end of the motor (453). A telescopic rod (455) is threaded onto the surface of the screw (454). The side of the telescopic rod (455) away from the motor (453) passes through the air chamber (451) and is fixedly connected to the rubber plate (452).

4. The adaptive door weight adjustment door closer according to claim 3, characterized in that: The top and bottom of the front side of the air chamber (451) are fixedly connected to sliding rods, and sliding sleeves are slidably connected to the surface of the sliding rods. The opposite sides of the two sliding sleeves are fixedly connected to the telescopic rod (455).

5. The adaptive door weight adjustment door closer according to claim 1, characterized in that: The fastening mechanism (53) includes a top block (531), the bottom of which is fixedly connected to the output end of the electric push rod (52), the top of which is provided with a sloping locking block (532), a magnet (533) is fixedly connected to the rear side of the sloping locking block (532), and the front side of the sloping locking block (532) extends through the inner cavity of the housing (1).

6. The adaptive door weight adjustment door closer according to claim 5, characterized in that: Limiting grooves are provided on both sides of the rear side of the top block (531), and limiting strips are provided in the inner cavity of the limiting grooves. The rear side of the limiting strips is fixedly connected to the inner wall of the control shell (51).

7. The adaptive door weight adjustment door closer according to claim 1, characterized in that: The reset rod (3) has an opening on its front side, a protective pad is fixedly connected to the rear side of the reset rod (3), and a controller is fixedly connected to the front side of the housing (1).

8. The adaptive door weight adjustment door closer according to claim 1, characterized in that: The top and bottom sides of the housing (1) are fixedly connected with fixing plates (6), and the front side of the fixing plate (6) is provided with fixing holes.

Images