Push rod type hinged door opening mechanism

Abstract

The utility model belongs to the technical field of hinged doors, and particularly relates to a push rod type hinged door opening mechanism which comprises a door frame and a door leaf rotationally connected to the door frame, a push rod transmission mechanism is assembled on the upper portion of the door frame, a connecting push rod is installed on the push rod transmission mechanism through a connecting unit, and a first connecting button is fixedly connected to the upper portion of the door leaf. The first connecting button is rotationally connected with the end, away from the connecting unit, of the connecting push rod, a stress monitor is assembled on the connecting push rod, the stress monitor, the push rod transmission mechanism and the connecting unit are electrically connected, the connecting unit has an active state and a locking state, and when the stress monitor bears force smaller than set pulling force, the connecting unit is in the locking state; and when the stress monitor is subjected to a force greater than a set force, the connecting unit is in an active state. When a user selects a manual door pushing mode and an electric door pushing mode, manual mode selection is not needed, switching is automatically completed, and use of the user is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of hinged doors, and in particular relates to a push rod type hinged door opening mechanism. Background Art

[0002] At present, push rod hinged door opening mechanism is widely used in door control system, which realizes automatic opening and closing of the door through push rod transmission mechanical structure;

[0003] However, due to the limitation of the push rod transmission mechanism, when the door leaf is manually pushed by the user, the door leaf cannot be pushed due to the limitation of the push rod transmission mechanism. The user needs to manually release the limitation of the push rod transmission mechanism on the door leaf before the manual door pushing can be completed. The operation is more cumbersome and brings inconvenience to the user. Utility Model Content

[0004] The purpose of the utility model is to provide a push rod type hinge door opening mechanism, which can automatically complete the switching when the user selects the manual door pushing mode and the electric door pushing mode without the need for manual mode selection, and is convenient for the user to use.

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

[0006] A push rod type hinged door opening mechanism comprises a door frame and a door leaf rotatably connected to the door frame, a push rod transmission mechanism is mounted on the upper part of the door frame, a connecting push rod is mounted on the push rod transmission mechanism via a connecting unit, a first connecting button is fixedly connected to the upper part of the door leaf, and the first connecting button is rotatably connected to an end of the connecting push rod away from the connecting unit;

[0007] The connecting push rod is equipped with a force monitor, the force monitor, the push rod transmission mechanism and the connecting unit are electrically connected, and the connecting unit includes an active state and a locked state;

[0008] When the force monitor is subjected to a force less than the set pulling force when the push rod transmission mechanism is not activated, the connecting unit is in a locked state, and the distance between the connection point of the push rod transmission mechanism and the connecting unit and the end of the connecting push rod away from the first connecting button is not adjustable;

[0009] When the force monitor is subjected to a force greater than a set force when the push rod transmission mechanism is not started, the connecting unit is in an active state. At this time, the distance between the connection between the push rod transmission mechanism and the connecting unit and the end of the connecting push rod away from the first connecting button is adjustable.

[0010] Furthermore, the push rod transmission mechanism includes a bracket body fixedly connected to the door frame, the bracket body is fixedly connected to a transmission motor, the output end of the transmission motor is fixedly connected to a screw, the outer side of the screw is threadedly connected to a slide slidably connected to the bracket body, and the slide and the connecting unit are fixedly connected.

[0011] Furthermore, the connecting unit includes a track body fixedly connected to the slide, the interior of the track body is slidably connected to a sliding bracket, and the sliding bracket can be locked inside the track body, and the lower part of the sliding bracket is rotationally connected to an end of the connecting push rod away from the first connecting button.

[0012] Furthermore, both ends of the track body are equipped with infrared rangefinders.

[0013] Furthermore, the sliding bracket includes a shell that is slidably connected to the inside of the track body, and two slides are slidably connected to the inside of the shell. Positioning rods are fixedly connected to the two slides, and both positioning rods can extend to the outside of the shell. A positioning hole is opened in the middle position of the track body, and the positioning rod can be clamped in the inside of the positioning hole. An adjustment unit is arranged inside the shell.

[0014] Furthermore, the adjustment unit includes an electromagnet fixedly connected to the inside of the shell, and the electromagnet is magnetically attracted to the slide plate when energized, and a return spring is installed between the electromagnet and the slide plate.

[0015] The technical effects achieved by this utility model are:

[0016] The present invention provides a practical push rod type hinge door opening mechanism which automatically adjusts the state of the connection unit when the door leaf is pushed by force by setting a force monitor. When the user selects the manual door pushing mode and the electric door pushing mode, there is no need to manually select the mode, and the switching can be completed automatically, which is convenient for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of this utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the cutaway structure of the practical connection unit;

[0020] Figure 4 It is a schematic diagram of the cutaway structure of the practical sliding bracket.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Door frame; 2. Door leaf; 3. First connecting button; 4. Connecting push rod; 5. Force monitor; 6. Push rod transmission mechanism; 7. Connecting unit; 8. Transmission motor; 9. Screw; 10. Slide; 11. Track body; 12. Sliding bracket; 13. Infrared rangefinder; 14. Positioning hole; 15. Shell; 16. Electromagnet; 17. Slide plate; 18. Positioning rod; 19. Return spring; 20. Bracket body. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1 As shown, a push rod type hinged door opening mechanism comprises a door frame 1 and a door leaf 2 rotatably connected to the door frame 1, a push rod transmission mechanism 6 is mounted on the upper part of the door frame 1, a connecting push rod 4 is mounted on the push rod transmission mechanism 6 through a connecting unit 7, a first connecting button 3 is fixedly connected to the upper part of the door leaf 2, the first connecting button 3 and the connecting push rod 4 are rotatably connected at one end away from the connecting unit 7, when the push rod transmission mechanism 6 is started, the connecting unit 7 can be driven to move linearly, and when the connecting unit 7 moves, the door leaf 2 can be driven to rotate through the connecting push rod 4 to open or close the door leaf 2;

[0025] The core of the technical solution is that a force monitor 5 is installed on the connecting push rod 4 to detect the force applied to the connecting push rod 4. The force monitor 5, the push rod transmission mechanism 6 and the connecting unit 7 are electrically connected. The connecting unit 7 includes an active state and a locked state.

[0026] When the force monitor 5 is subjected to a force less than the set pulling force when the push rod transmission mechanism 6 is not activated, the connecting unit 7 is in a locked state, and the distance between the connection point of the push rod transmission mechanism 6 and the connecting unit 7 and the end of the connecting push rod 4 away from the first connecting button 3 is not adjustable, so that the rotation of the door leaf 2 is restricted by the push rod transmission mechanism 6, and the door leaf 2 can only be driven to rotate when the push rod transmission mechanism 6 is in motion;

[0027] When the force monitor 5 is subjected to a force greater than the set force when the push rod transmission mechanism 6 is not activated, the connecting unit 7 is in an active state. At this time, the distance between the connection point of the push rod transmission mechanism 6 and the connecting unit 7 and the end of the connecting push rod 4 away from the first connecting button 3 is adjustable, so that the rotation of the door leaf 2 will not be restricted by the push rod transmission mechanism 6 and can be freely pushed manually;

[0028] Here, the setting force is set according to user needs.

[0029] Among them, Figure 1-2As shown, the push rod transmission mechanism 6 includes a bracket body 20 fixedly connected to the door frame 1, a transmission motor 8 is fixedly connected to the bracket body 20, a screw 9 is fixedly connected to the output end of the transmission motor 8, and the outer side of the screw 9 is threadedly connected to a slide 10 slidably connected to the bracket body 20. When the transmission motor 8 is started, the screw 9 can be driven to rotate, and when the screw 9 rotates, it will drive the slide 10 to move linearly. The slide 10 and the connecting unit 7 are fixedly connected, and the position of the slide 10 is the connection point between the push rod transmission mechanism 6 and the connecting unit 7.

[0030] like Figure 1-3 As shown, the connecting unit 7 includes a track body 11 fixedly connected to the slide 10, and the track body 11 is internally slidably connected with a sliding bracket 12, and the sliding bracket 12 can be locked inside the track body 11, and the lower part of the sliding bracket 12 is rotatably connected to the end of the connecting push rod 4 away from the first connecting button 3. When the sliding bracket 12 is in an unlocked state, the sliding bracket 12 will be driven to slide through the connecting push rod 4 when the door leaf 2 rotates, and the position of the sliding bracket 12 inside the track body 11 is adjusted. The change in the position of the sliding bracket 12 inside the track body 11 can eliminate the influence of the connecting push rod 4 on the slide 10 when it rotates, thereby reducing the phenomenon of accidental locking when pushing the door.

[0031] In addition, infrared rangefinders 13 are installed at both ends of the track body 11. The infrared rangefinder 13 can detect the position of the sliding bracket 12. When the infrared rangefinder 13 detects that the position of the sliding bracket 12 has changed, it will adjust the position of the track body 11 by starting the transmission motor 8 after a set time of 30 seconds, so that the sliding bracket 12 is reset to the middle position of the track body 11, which can reduce the failure phenomenon caused by the transmission motor 8 driving the door leaf 2 to move.

[0032] Among them, Figure 3-4 As shown, the sliding bracket 12 includes a shell 15 slidably connected to the inside of the track body 11, and two slides 17 are slidably connected to the inside of the shell 15. Positioning rods 18 are fixedly connected to the two slides 17. Both positioning rods 18 can extend to the outside of the shell 15. A positioning hole 14 is opened in the middle position of the track body 11. The positioning rod 18 can be snapped into the inside of the positioning hole 14 to complete the locking.

[0033] In order to drive the positioning rod 18 to slide, an adjustment unit is provided inside the shell 15 for adjusting the position of the positioning rod 18. Specifically, the adjustment unit includes an electromagnet 16 fixedly connected to the inside of the shell 15. When the electromagnet 16 is energized, it is magnetically attracted to the slide 17, and the slide 17 is pulled to allow the positioning rod 18 to be retracted into the shell 15. A return spring 19 is installed between the electromagnet 16 and the slide 17. When the electromagnet 16 is powered off, the return spring 19 will push the slide 17 to allow the positioning rod 18 to extend to the outside of the shell 15.

[0034] The working principle of the utility model is: when in use, the slide 10 can be driven to move by starting the transmission motor 8. When the slide 10 moves, it will drive the connecting push rod 4 to move through the connecting unit 7, so that the connecting push rod 4 drives the door leaf 2 to rotate, adjust the position of the door leaf 2, and complete the opening and closing of the door leaf 2.

[0035] When the user manually drives the door leaf 2 to rotate, the door leaf 2 will drive the connecting push rod 4 to apply a push or pull force to the force monitor 5. When the force monitor 5 detects that the force monitor 5 is subjected to a force greater than the set force, the connecting unit 7 is in an active state. At this time, the distance between the connection point of the push rod transmission mechanism 6 and the connecting unit 7 and the end of the connecting push rod 4 away from the first connecting button 3 is adjustable, so that the rotation of the door leaf 2 will not be restricted by the push rod transmission mechanism 6 and can be pushed manually freely.

[0036] In summary, the technical solution sets the force monitor 5 to automatically adjust the state of the connection unit 7 when the door leaf 2 is pushed by force. When the user selects the manual door pushing mode and the electric door pushing mode, there is no need to manually select the mode. The switching can be completed automatically, which is convenient for users.

[0037] 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. A push rod type hinged door opening mechanism, comprising a door frame (1) and a door leaf (2) rotatably connected to the door frame (1), characterized in that: The upper part of the door frame (1) is equipped with a push rod transmission mechanism (6), a connecting push rod (4) is installed on the push rod transmission mechanism (6) through a connecting unit (7), the upper part of the door leaf (2) is fixedly connected with a first connecting button (3), and the first connecting button (3) and the connecting push rod (4) are rotatably connected at one end away from the connecting unit (7); The connecting push rod (4) is equipped with a force monitor (5), the force monitor (5), the push rod transmission mechanism (6) and the connecting unit (7) are electrically connected, and the connecting unit (7) includes an active state and a locked state; When the force monitor (5) is subjected to a force less than a set pulling force when the push rod transmission mechanism (6) is not activated, the connecting unit (7) is in a locked state, and the distance between the connection point of the push rod transmission mechanism (6) and the connecting unit (7) and the end of the connecting push rod (4) away from the first connecting button (3) is not adjustable; When the force monitor (5) is subjected to a force greater than a set force when the push rod transmission mechanism (6) is not activated, the connecting unit (7) is in an active state. At this time, the distance between the connection point of the push rod transmission mechanism (6) and the connecting unit (7) and the end of the connecting push rod (4) away from the first connecting button (3) is adjustable.

2. A push rod type hinged door opening mechanism according to claim 1, characterized in that: The push rod transmission mechanism (6) comprises a bracket body (20) fixedly connected to the door frame (1), a transmission motor (8) fixedly connected to the bracket body (20), a screw rod (9) fixedly connected to the output end of the transmission motor (8), an outer side of the screw rod (9) is threadedly connected to a slide bracket (10) slidably connected to the bracket body (20), and the slide bracket (10) and the connection unit (7) are fixedly connected.

3. A push rod type hinged door opening mechanism according to claim 2, characterized in that: The connecting unit (7) comprises a track body (11) fixedly connected to a slide frame (10); a sliding bracket (12) is slidably connected inside the track body (11), and the sliding bracket (12) can be locked inside the track body (11); the lower part of the sliding bracket (12) is rotatably connected to an end of the connecting push rod (4) away from the first connecting button (3).

4. A push rod type hinged door opening mechanism according to claim 3, characterized in that: Infrared rangefinders (13) are installed at both ends of the track body (11).

5. The push rod type hinged door opening mechanism according to claim 3, characterized in that: The sliding bracket (12) comprises a shell (15) slidably connected to the inside of the track body (11); two slide plates (17) are slidably connected to the inside of the shell (15); positioning rods (18) are fixedly connected to the two slide plates (17); the two positioning rods (18) can extend to the outside of the shell (15); a positioning hole (14) is opened in the middle position of the track body (11); the positioning rod (18) can be snapped into the inside of the positioning hole (14); and an adjustment unit is arranged inside the shell (15).

6. A push rod type hinged door opening mechanism according to claim 5, characterized in that: The adjustment unit comprises an electromagnet (16) fixedly connected to the inside of a housing (15); the electromagnet (16) and a slide plate (17) are magnetically attracted to each other when energized; a return spring (19) is installed between the electromagnet (16) and the slide plate (17).

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