Swing lever hinge door opening mechanism

Abstract

The utility model belongs to the technical field of automatic opening and closing of hinged doors, and specifically relates to a swing rod type hinged door opening mechanism, including a vertical frame, a mounting plate fixed between the tops of two vertical frames, a reinforcing rod fixed between the bottoms of the two vertical frames, two connecting ears fixed on the top of the mounting plate, a screw rod rotatably mounted between the outer walls of the two connecting ears, a machine base is arranged between the tops of the two connecting ears, a moving block screwed with the screw rod thread is slidably mounted on the bottom of the machine base, a door leaf is rotatably mounted between the outer walls of the mounting plate and the reinforcing rod, a swing rod is rotatably mounted on the top of the door leaf, the other end of the swing rod is rotatably mounted on the bottom of the mounting plate, a connecting rod is rotatably mounted on the bottom of the moving block, and the other end of the connecting rod is rotatably mounted on the middle outer wall of the connecting rod; the utility model can effectively and accurately control the opening and closing angle of the door, and improve the stability of the door opening and closing process; in addition, it can also greatly reduce the failure rate, eliminate the failure point, and prevent the damage and failure of components caused by external resistance, and meet the requirements of the current national standards to ensure the safety of personnel.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic opening and closing of hinged doors, and specifically relates to a swing rod type hinged door opening mechanism. Background Art

[0002] Elevator hinged doors are not only used in home elevator products in the elevator industry, but also in commercial elevators. The existing technology is divided into two methods. First, a reduction motor is used to install a swing arm, and the swing arm is used to push the door leaf to open and close. This method has poor precision, poor stability, high power consumption, and a very high failure rate when applied to doors with a width greater than 700mm. Second, the output shaft of the reduction motor is used to directly act on the door shaft, and torque is applied to the door shaft to achieve the opening and closing of the door. This method is greatly affected by external components (such as the weight of the door, the method and position of the door shaft, etc.), so it has low adaptability, and due to its driving principle defects, the strength of the components is difficult to support the input of reverse force, so it is very easy to cause damage to internal components.

[0003] In buildings, factories, hospitals and other scenes where hinged doors need to open and close automatically, most of them now use an external mechanism to open and close the door leaves by pushing them with swing arms. This has poor aesthetics, complex structure, and certain safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a swing-rod hinge door opening mechanism, which can effectively and accurately control the opening and closing angles of the door and improve the stability of the door opening and closing process; in addition, it can also greatly reduce the failure rate, eliminate the failure points, and prevent component damage and failures caused by external resistance, and meet the current national standards to ensure personnel safety.

[0005] The technical solutions adopted in this utility are as follows:

[0006] A rocker-type hinged door opening mechanism includes a vertical frame, a mounting plate fixed between the tops of the two vertical frames, a reinforcing rod fixed between the bottoms of the two vertical frames, two connecting ears fixed to the top of the mounting plate, a screw rod rotatably mounted between the outer walls of the two connecting ears, a base is arranged between the tops of the two connecting ears, a moving block screwed to the screw rod thread is slidably mounted at the bottom of the base, a door leaf is rotatably mounted between the outer walls of the mounting plate and the reinforcing rod, a rocker rod is rotatably and slidably mounted on the top of the door leaf, the other end of the rocker rod is rotatably mounted on the bottom of the mounting plate, a connecting rod is rotatably mounted on the bottom of the moving block, and the other end of the connecting rod is rotatably mounted on the middle outer wall of the connecting rod.

[0007] Furthermore, a rotating motor is arranged on the top of the mounting plate and on one side of the machine base, and a torque limiting member is arranged on the output shaft of the rotating motor, and one side of the torque limiting member is connected to one end of the screw rod.

[0008] Furthermore, a detachable protective cover is provided on the top of the mounting plate.

[0009] Furthermore, elastic sheets are fixed on both sides of the protective cover, first sliding grooves are provided on both sides of the protective cover corresponding to the bottom ends of the elastic sheets, and the other ends of the elastic sheets are slidably connected to the first sliding grooves, and a clamping groove is provided on the outer wall of the vertical frame corresponding to the raised portion of the elastic sheet, and the raised portion of the elastic sheet is clamped in the clamping groove.

[0010] Furthermore, the rotating motor is one of a servo motor, a pneumatic element, a hydraulic element and a cycloid motor.

[0011] Furthermore, a second sliding block is provided at one end of the swing rod, and a second sliding groove is provided at the top of the door leaf to be slidably connected to the second sliding block.

[0012] The technical effects achieved by this utility model are:

[0013] This practical swing-rod hinge door opening mechanism drives the moving block on the screw rod to achieve precise movement through the cooperation of the rotating motor and the torque limiter. The moving block is connected to the swing rod through a connecting rod, so that the swing rod rotates with the movement of the moving block. The other end of the swing rod slides on the top of the door leaf to achieve the opening and closing of the door leaf; this structure is simple and effective, and can accurately control the opening and closing angle of the door and improve the stability of the door opening and closing process; in addition, it can also greatly reduce the failure rate, eliminate the failure point, and prevent component damage and failure caused by external resistance, and meet the current national standards to ensure personnel safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in a front view;

[0015] Figure 2 It is a schematic diagram of the partial three-dimensional structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the partial cutaway structure of the utility model.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1. Vertical frame; 2. Mounting plate; 3. Door leaf; 4. Machine base; 5. Screw rod; 6. Moving block; 7. Torque limiter; 8. Rotating motor; 9. Connecting rod; 10. Rocker arm; 11. Protective cover; 12. Elastic sheet; 13. First slide slot; 14. Card slot. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0020] like Figure 1-2 As shown, the swing-rod hinge door opening mechanism comprises a vertical frame 1, a mounting plate 2 is fixed between the tops of the two vertical frames 1, a reinforcing rod is fixed between the bottoms of the two vertical frames 1, two connecting ears are fixed on the top of the mounting plate 2, a screw rod 5 is rotatably mounted between the outer walls of the two connecting ears, a machine base 4 is arranged between the tops of the two connecting ears, a moving block 6 threadedly screwed with the screw rod 5 is slidably mounted on the bottom of the machine base 4, a change in relative position with the door leaf 3 is generated to provide a basis for opening and closing and transmit power, a door leaf 3 is rotatably mounted between the outer walls of the mounting plate 2 and the reinforcing rod, a swing rod 10 is rotatably and slidably mounted on the top of the door leaf 3, the other end of the swing rod 10 is rotatably mounted on the bottom of the mounting plate 2, a connecting rod 9 is rotatably mounted on the bottom of the moving block 6, and the other end of the connecting rod 9 is rotatably mounted The connecting rod 9 is installed on the middle outer wall of the connecting rod 9, and the angle change relative to the door leaf 3 is produced by cooperating with the moving block 6, so as to realize the opening and closing of the door leaf 3 and transmit power at the same time. The structure is simple, and the external resistance can be effectively reduced to ensure the strength of the overall mechanism. The door opening mechanism is hidden in the door frame to ensure the appearance. A rotating motor 8 is arranged on the top of the mounting plate 2 and on one side of the machine base 4. The output shaft of the rotating motor 8 is provided with a torque limiting member 7, and one side of the torque limiting member 7 is connected to one end of the screw rod 5. The torque limiting member 7 is arranged to transmit power through its own function of adjusting the transmission torque size, and sense the resistance size. When the resistance size reaches a predetermined rule value, the power output is disconnected through the mechanical structure, and the power output is restored when the external resistance is eliminated.

[0021] The power transmission of this solution is a screw 5 structure, which can also be replaced by linear motors, pneumatic components, hydraulic components, gears, racks, connecting rods, toothed belts, chains and other components that can transmit linear movement;

[0022] The relative position and angle of this scheme are realized by horizontal movement of components, and can also be realized by vertical movement of components, angle change, vector displacement, vector change, etc.;

[0023] The torque limiting member 7 of the present invention is adjustable and realized with the power output shaft as the axis, or it may be non-adjustable and realized in a manner not centered on the power output shaft, such as a dry or wet clutch, a magnetic torque transmission device, or a similar device acting on the door leaf 3 or other possible positions;

[0024] like Figure 1 and 3As shown, a detachable protective cover 11 is provided on the top of the mounting plate 2, which is convenient for protecting the mechanical structure of the mounting plate 2 and can also prevent dust from falling on it for a long time and affecting the operation of the equipment; elastic sheets 12 are fixed on both sides of the protective cover 11, and first slide grooves 13 are provided on both sides of the protective cover 11 corresponding to the bottom ends of the elastic sheets 12, and the other end of the elastic sheet 12 is slidably connected to the first slide groove 13, and a card groove 14 is provided on the outer wall of the vertical frame 1 corresponding to the raised portion of the elastic sheet 12, and the raised portion of the elastic sheet 12 is stuck in the card groove 14, which has a simple structure, is convenient for the installation and removal of the protective cover 11, and is relatively convenient and labor-saving;

[0025] The rotating motor 8 is one of a servo motor, a pneumatic element, a hydraulic element and a cycloid motor to provide a power source for the device;

[0026] like Figure 2 As shown, a second sliding block is provided at one end of the swing rod 10 , and a second sliding groove slidably connected to the second sliding block is provided at the top of the door leaf 3 , which limits the longitudinal position of the swing rod 10 on the door leaf 3 where displacement occurs.

[0027] The working principle of this utility model is as follows: in normal drive, assuming that the door leaf is in a closed state, after the rotary motor 8 receives the door opening command, it starts to rotate forward at the rated speed, and the power output by the rotary motor 8 is transmitted to the torque limiting component 7, which automatically determines whether the torque value is greater than the set value. If it is not greater than the torque set value, the power is transmitted from the screw rod 5 to the moving block 6, and then the position and angle changes are transmitted to the connecting rod 9 through the moving block 6. Finally, the connecting rod 9 makes the swing rod 10 slide horizontally on the door leaf 3 according to the position and angle changes, and converts the power into the final size of the door opening position, thus realizing the door opening process. The door closing process is actually the reverse of the above process;

[0028] Abnormal drive, the external resistance is greater than the preset value. If at any position or time during the operation, the torque limiter 7 determines that the external resistance is greater than the preset value, the torque limiter 7 will disconnect the power transmission between the rotating motor 8 and the moving block 6, so that the door leaf 3 is in a free opening and closing state, thereby protecting the safety of personnel; at the same time, the rotating motor 8 is in an idling state, thereby protecting the safety of the equipment itself. Once the external resistance is less than the preset value, the rotating motor 8 will be stopped and reversed with the participation of the electronic control components. At this time, the torque limiter 7 will automatically restore the power transmission between the rotating motor 8 and the moving block 6, and achieve the purpose of reverse operation when encountering resistance and resuming normal operation;

[0029] The driving of the double-leaf door is achieved by adding a mirror-image screw rod 5, a moving block 6, and a connecting rod 9. The one-way screw rod 5 for power transmission is replaced with a coaxial two-way screw rod 5. The reversibility of the coaxial two-way screw rod 5 realizes the reverse movement of the two moving blocks 6, thereby driving the two connecting rods 9 respectively installed on the two doors to make the rocker arm 10 slide horizontally on the two doors, and finally realizing the synchronous opening and closing of the double-leaf door.

[0030] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. The swing lever hinge door opening mechanism is characterized by: The invention comprises a vertical frame (1), a mounting plate (2) is fixed between the tops of the two vertical frames (1), a reinforcing rod is fixed between the bottoms of the two vertical frames (1), two connecting ears are fixed on the top of the mounting plate (2), a screw rod (5) is rotatably mounted between the outer walls of the two connecting ears, a machine base (4) is arranged between the tops of the two connecting ears, a moving block (6) threadedly screwed with the screw rod (5) is slidably mounted on the bottom of the machine base (4), a door leaf (3) is rotatably mounted between the outer walls of the mounting plate (2) and the reinforcing rod, a swing rod (10) is rotatably and slidably mounted on the top of the door leaf (3), the other end of the swing rod (10) is rotatably mounted on the bottom of the mounting plate (2), a connecting rod (9) is rotatably mounted on the bottom of the moving block (6), and the other end of the connecting rod (9) is rotatably mounted on the middle outer wall of the connecting rod (9).

2. The swing lever hinge door opening mechanism according to claim 1, characterized in that: A rotating motor (8) is arranged on the top of the mounting plate (2) and on one side of the machine base (4); the output shaft of the rotating motor (8) is provided with a torque limiting member (7), and one side of the torque limiting member (7) is connected to one end of the screw rod (5).

3. The swing lever hinge door opening mechanism according to claim 1, characterized in that: A detachable protective cover (11) is provided on the top of the mounting plate (2).

4. The swing lever hinge door opening mechanism according to claim 3, characterized in that: Elastic sheets (12) are fixed on both sides of the protective cover (11), first sliding grooves (13) are provided on both sides of the protective cover (11) corresponding to the bottom ends of the elastic sheets (12), and the other ends of the elastic sheets (12) are slidably connected to the first sliding grooves (13), and the outer wall of the vertical frame (1) is provided with a clamping groove (14) corresponding to the raised portion of the elastic sheet (12), and the raised portion of the elastic sheet (12) is clamped in the clamping groove (14).

5. The swing lever hinge door opening mechanism according to claim 2, characterized in that: The rotating motor (8) is one of a servo motor, a pneumatic motor, a hydraulic motor and a cycloid motor.

6. The swing lever hinge door opening mechanism according to claim 1, characterized in that: A second sliding block is provided at one end of the swing rod (10), and a second sliding groove slidably connected to the second sliding block is provided at the top of the door leaf (3).

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