Chain window opening mechanism

Abstract

The utility model discloses a chain window opening mechanism which comprises a shell, and a transmission gear set is arranged in the shell. The power assembly is used for providing driving force for the transmission gear set; driving force transmission and disconnection are achieved, the problem that the window cannot be locked and opened is solved under the condition that the air tightness function of the window is guaranteed, meanwhile, by means of the characteristics of the swing gears, when the motor rotates forwards and reversely, the matching force between the gears is effectively removed, and the window can be opened at any opening position. And manual switching of the window in various states can be achieved. Therefore, the gear in the chain windowing mechanism is effectively protected.

Description

Technical Field

[0001] The utility model belongs to the field of electric window opening equipment, in particular to a chain window opening mechanism. Background Art

[0002] Windows are important components for decoration and lighting in people's contemporary homes. Windows are also needed in various buildings for lighting, ventilation and rain protection. Window openers are tools used to facilitate people to open and close windows for different uses. Prior art 01140311.X, published on June 11, 2003, first disclosed a chain-type hand-cranked window opener. With the promotion of smart Internet of Things, electric window openers are an important component of automatic equipment, which can help people realize automatic opening and closing of windows.

[0003] Prior art 201610267422.4, published on July 20, 2016, disclosed for the first time an electric chain window opener. The prior art solution is to use an electric motor to drive the chain to retract and extend, push the window open or pull the window closed, thereby realizing automatic opening and closing of the window without the need for manpower to open and close the window.

[0004] However, through the disclosed prior art 201610267422.4, it can be seen that the existing technical solution cannot realize manual and electric operation at the same time. Furthermore, once the motor fails or the transmission gear is stuck, the window opener will lose its function and cause the window to be stuck. Utility Model Content

[0005] The technical problem solved by the utility model is how to achieve the clutch between gears and effectively remove the matching force between the gears when the motor switches forward and reverse directions.

[0006] In view of the above problems, the technical solution of the utility model is:

[0007] A chain window opening mechanism, comprising

[0008] A housing, wherein a transmission gear set is disposed inside the housing;

[0009] A power assembly, the power assembly is used to provide driving force to the transmission gear set;

[0010] The transmission gear set includes

[0011] First gear;

[0012] Second gear;

[0013] an input gear, wherein the first gear is disposed between the second gear and the input gear;

[0014] a third gear, the third gear meshing with the second gear; a return spring is arranged at the lower part of the third gear, the return spring is used to support the up and down movement of the third gear;

[0015] a fourth gear, the fourth gear meshing with the third gear;

[0016] A clutch paddle, the clutch paddle is in contact with the third gear and is used to move the third gear up and down;

[0017] a fifth gear, the fifth gear meshing with the fourth gear;

[0018] A sprocket is meshed with the sprocket.

[0019] Furthermore, the first gear includes

[0020] a primary gear and a swing gear, wherein the primary gear meshes with the input gear,

[0021] When the power assembly rotates forward, the first gear drives the swing gear to mesh with the second gear;

[0022] When the power assembly is reversed, the first gear drives the swing gear to disengage from the second gear, cutting off the driving force; when the power assembly continues to reverse, the first gear drives the swing gear to mesh with the second gear.

[0023] The beneficial effect of the utility model is that the clutch paddle cooperates with the fourth gear to realize manual switching of the window in various states, and at the same time, the driving force is transmitted and disconnected, and the airtightness of the window is ensured, and the problem of the window being locked and unable to be opened is solved. At the same time, the characteristics of the swing gear are used to effectively remove the matching force between the gears when the motor is switched forward and reverse, so that the window can be opened at any position, and the window can be manually switched in various states. Effective protection of the internal gears of the chain window opening mechanism is achieved, and the window is ensured not to be locked and unable to be opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an embodiment of the utility model;

[0025] Figure 2 This is an internal structure diagram of an embodiment of the utility model;

[0026] Figure 3 This is an internal structure diagram of an embodiment of the utility model;

[0027] Figure 4 It is an enlarged view of the local structure of an embodiment of the utility model;

[0028] Figure 5 It is an enlarged view of the local structure of an embodiment of the utility model;

[0029] Among them, the housing 1, the chain 2, the first gear 3, the motor 4, the input gear 5, the second gear 6, the third gear 7, the fourth gear 8, the shift block 9, the return spring 10, the clutch paddle 11, the fifth gear 12, and the sprocket 13. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] like Figure 1-5 As shown, the utility model provides an electrically driven chain window opening mechanism, the window opening mechanism comprising:

[0033] A housing 1, wherein a transmission mechanism is disposed inside the housing 1;

[0034] A motor 4, wherein the motor 4 provides a driving force for the window opening mechanism;

[0035] The transmission mechanism is composed of a plurality of transmission gears, and the transmission gears include:

[0036] Figure 2-5 As shown, the first gear 3 includes a primary gear 3.1 and a swing gear 3.2, wherein the primary gear 3.1 is meshed with the input gear 5. Figure 4-5As shown, when the motor 4 rotates forward, the first-stage gear 3.1 drives the swing gear 3.2 to engage with the second gear 6; when the motor 4 rotates reversely, the first-stage gear 3.1 drives the swing gear 3.2 to disengage from the second gear 6, cutting off the driving force of the motor 4; the motor 4 continues to reverse and the first-stage gear 3.1 drives the swing gear 3.2 to engage with the second gear 6.

[0037] The input gear 5 is used to mesh with the output shaft of the motor 4.

[0038] The second gear 6 includes a swing meshing gear 6.1 and a transmission gear 6.2. The swing meshing gear 6.1 meshes with the swing gear 3.2. The transmission gear 6.2 meshes with the third gear 7. A return spring 10 is arranged below the third gear 7. The clutch paddle 11 cooperates with the fourth gear 8. When the clutch paddle 11 moves downward, the third gear 7 is disengaged from the transmission gear 6.2, and the driving force transmission of the motor 4 is cut off. The clutch paddle 11 is released, and the return spring 10 controls the third gear 7 to return to the position of meshing with the transmission gear 6.2. The clutch paddle cooperates with the fourth gear to achieve the transmission and disconnection of the driving force, and the airtightness of the window is ensured, and the window is not locked and cannot be opened. At the same time, the characteristics of the swing gear are used to effectively remove the matching force between the gears when the motor is switched forward and reverse, so that the window can be opened at any position, and the window can be manually switched in various states. Effective protection of the internal gears of the chain window opening mechanism is achieved. The driving force of the motor 4 is transmitted to the fifth gear 12, the fifth gear 12 is connected to the fourth gear 8 and the sprocket wheel 13, and the sprocket wheel 13 rotates to control the extension and retraction of the chain 2 to complete the control of the opening and closing of the window sash.

[0039] The third gear 7 is meshed with the fourth gear 8 to transmit the driving force to the fourth gear 8. The shift block 9 is arranged on the surface of the housing 1 and cooperates with the clutch shift piece 11.

[0040] Those skilled in the art will appreciate that the embodiments described herein are intended to help readers understand the principles of the present invention, and should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific variations and combinations based on the technical inspirations disclosed in the present invention without departing from the essence of the present invention, and these variations and combinations are still within the protection scope of the present invention.

Claims

1. A chain window opening mechanism, characterized in that: include A housing, wherein a transmission gear set is disposed inside the housing; A power assembly, the power assembly is used to provide driving force to the transmission gear set; The transmission gear set includes First gear; Second gear; an input gear, wherein the first gear is disposed between the second gear and the input gear; a third gear, the third gear meshing with the second gear; A return spring is arranged at the lower part of the third gear, and the return spring is used to support the up and down movement of the third gear; a fourth gear, the fourth gear meshing with the third gear; A clutch paddle, the clutch paddle is in contact with the third gear and is used to move the third gear up and down; a fifth gear, the fifth gear meshing with the fourth gear; A sprocket is meshed with the sprocket.

2. A chain window opening mechanism according to claim 1, characterized in that: The first gear includes a primary gear and a swing gear, wherein the primary gear meshes with the input gear, When the power assembly rotates forward, the first gear drives the swing gear to mesh with the second gear; When the power assembly is reversed, the first gear drives the swing gear to disengage from the second gear, cutting off the driving force; when the power assembly continues to reverse, the first gear drives the swing gear to mesh with the second gear.

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