Hand-cranking outward opening mechanism

Abstract

The utility model provides a hand-cranking outward-opening mechanism which comprises a window frame and an outward-opening window, and further comprises a power supply assembly, a hand-cranking outward-opening mechanism and a hand-cranking outward-opening mechanism, and the power supply assembly is arranged on one side of the window frame; the power transmission assembly and the power supply assembly are arranged in a transmission manner; the execution support arm mechanism is used for connecting the power transmission assembly and an out-opening window; the locking mechanism is connected with the execution support arm mechanism, the locking mechanism is provided with a limiting part used for limiting the execution support arm mechanism, the limiting part is in sliding connection with the execution support arm mechanism, power is provided through a power providing assembly, a power transmission assembly is driven to drive the execution support arm mechanism to move, and the execution support arm mechanism is driven to move under the limiting of the limiting part. In this way, unlocking through a wrench is not needed, then the window is opened in a hand-cranking mode, and operation is easy.

Description

Technical Field

[0001] This utility model relates to the field of outward-opening window technology, specifically to a hand-cranked outward-opening mechanism. Background Technology

[0002] In the application of American-style outward-opening windows, achieving a safe and reliable locking mechanism as well as a convenient opening method are key considerations in product design. Traditional American-style outward-opening windows are usually equipped with a mechanical system to ensure that the window can be tightly locked to ensure safety and wind and water resistance, while also being easily opened by the user for ventilation. These windows generally have two main operating components: first, a side lever handle, which is connected to multiple locking points inside or outside. The user needs to release the locking points by pulling this lever to unlock the window; second, a hand crank arm is installed at the bottom of the window. Once the locking points are successfully opened, the user can smoothly open the window outward by turning the hand crank arm.

[0003] However, such outward-opening windows often require unlocking with a wrench first, and then opening the window by hand, which is a two-step operation and quite cumbersome.

[0004] Therefore, existing technologies need further development. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a hand-cranked outward opening mechanism to solve the technical problem that outward opening windows often require unlocking first and then opening the window by hand, which requires two steps and is relatively cumbersome.

[0006] To achieve the above technical objectives, the present invention adopts the following technical solution: providing a hand-cranked outward opening mechanism, including a window frame and an outward opening window;

[0007] A power supply component, wherein the power supply component is disposed on one side of the window frame;

[0008] A power transmission assembly, wherein the power transmission assembly is used to transmit the power provided by the power supply assembly, and the power transmission assembly is connected to the power supply assembly in a transmission configuration.

[0009] An actuator arm mechanism is used to connect the power transmission assembly to the outward-opening window;

[0010] A locking mechanism is connected to the actuator arm mechanism, the locking mechanism having a limiting part for limiting the actuator arm mechanism, the limiting part being slidably connected to the actuator arm mechanism.

[0011] Furthermore, the actuator arm mechanism includes:

[0012] A connecting arm, one end of which is rotatably connected relative to a power transmission assembly;

[0013] A sliding slot is provided through the connecting arm on the side near the power transmission assembly;

[0014] A first slider is rotatably connected to the other end of the connecting arm and is slidably connected to the bottom of the outward-opening window.

[0015] Furthermore, the sliding slot includes:

[0016] Moving slot;

[0017] A limiting slot is provided, which is connected to the moving slot. When the outward-opening window is closed, the limiting slot limits the locking mechanism.

[0018] Furthermore, the power supply component includes:

[0019] handle;

[0020] A connecting handle, one end of which is rotatably connected to the handle, and the other end of which is rotatably disposed;

[0021] A receiving cavity is formed on the connecting handle, and the receiving cavity accommodates the handle;

[0022] A connecting groove is formed on the side of the connecting handle away from the handle, and the connecting groove penetrates the side wall of the connecting handle away from the handle;

[0023] A connecting block, one end of which is rotatably connected to the communicating groove, and the connecting block is placed inside the communicating groove;

[0024] A connecting shaft is fixedly mounted on the side of the adapter block near the connecting handle, and the connecting shaft is rotatably connected to the window frame;

[0025] A drive bevel gear is fixedly sleeved on the connecting shaft.

[0026] Furthermore, the receiving cavity includes a first chamber and a second chamber, the first chamber being in communication with the second chamber; the width of the second chamber is greater than the width of the first chamber, and the second chamber is used to remove the handle from the receiving cavity.

[0027] Furthermore, it also includes: the power transmission assembly includes:

[0028] A transmission bevel gear, which meshes with the drive bevel gear for transmission;

[0029] A lead screw, one end of which is fixedly connected to the transmission bevel gear;

[0030] The first connecting block is rotatably mounted on the lead screw, the first connecting block is located near the transmission bevel gear, and the first connecting block is fixed to one side of the window frame;

[0031] The second connecting block is sleeved on the end of the lead screw away from the transmission bevel gear, and the second connecting block is fixed on one side of the window frame. The second connecting block and the first connecting block are located on the same side.

[0032] A movable block, which is threadedly connected to the lead screw, and the movable block is rotatably connected to the connecting arm.

[0033] Furthermore, the window frame has a first sliding groove on the side near the power transmission component, and a second sliding groove on the other side of the first sliding groove; and / or,

[0034] The outward-opening window has a third sliding groove on the side near the power transmission component, and a fourth sliding groove is provided on one side of the third sliding groove. The first slider is slidably disposed inside the third sliding groove.

[0035] Furthermore, the limiting part is disposed within the first sliding groove, and the limiting part includes:

[0036] The limiting plate is fixedly installed in the first sliding groove;

[0037] A limiting post is located on the side of the limiting plate near the connecting arm. The limiting post is slidably disposed in the moving groove and is limited in the limiting slot.

[0038] A snap-fit ​​block, wherein the snap-fit ​​block is slidably disposed within the first sliding groove;

[0039] A snap-fit ​​post, which is slidably disposed within the third sliding groove;

[0040] A locking point, which is slidably disposed within the third sliding groove;

[0041] A lock seat is disposed in the first sliding groove and engages with the locking point;

[0042] The corner is set in the third sliding groove. One end of the corner is connected to the locking point through a transmission bar, and the other end of the corner is connected to the snap-fit ​​post through the transmission bar.

[0043] A sliding bar is slidably disposed in the first sliding groove. The sliding bar is fixedly connected to the side of the moving block near the limiting plate, and the snap-fit ​​block is fixedly connected to the side of the sliding bar away from the moving block.

[0044] Furthermore, it also includes a cantilever hinge assembly, which is disposed in the second sliding groove. The cantilever hinge assembly includes a fixing plate, which is fixed in the second sliding groove.

[0045] The fifth sliding groove is formed on the fixed plate;

[0046] The second slider slides in the fifth sliding groove;

[0047] The first connecting rod has one end rotatably mounted on the fixed plate and the other end rotatably mounted in the fourth sliding groove.

[0048] The second connecting rod has one end rotatably connected to the second slider, and the other end rotatably connected in the fourth sliding groove;

[0049] The third link has one end rotatably connected to the fixed plate, and is located between the first link and the second link. The other end of the third link is rotatably connected to the middle of the second link.

[0050] When the outward-opening window is located within the window frame, the first link, the second link, and the third link fold and overlap with the fixed plate.

[0051] Furthermore, the power supply component includes a motor, which is directly connected to the lead screw via a coupling; and / or,

[0052] A dustproof shell is fixedly installed on one side of the window frame, and the dustproof shell covers the outside of the power transmission component, the drive bevel gear and the transmission bevel gear.

[0053] Beneficial effects:

[0054] 1. Power is provided by the power supply component, which drives the power transmission component to move the actuator arm mechanism. Under the limit of the locking mechanism, the actuator arm mechanism opens the outward window, so there is no need to unlock with a wrench and then open the window by hand, which is simple to operate.

[0055] 2. By placing the handle into the receiving cavity of the connecting handle, then folding the connecting handle and the adapter block, and then rotating the connecting block to fit the entire connecting handle into the dustproof shell, the entire power supply component can be prevented from being exposed, thus avoiding injury to the human body, and also achieving a neat and beautiful appearance.

[0056] 3. The second chamber allows users to easily place their hands inside and remove the handle. Attached Figure Description

[0057] Figure 1 This is a schematic diagram of the overall structure of a hand-cranked outward-opening mechanism used in an embodiment of this utility model;

[0058] Figure 2 This is a schematic diagram of the power supply component and power transmission component of a hand-cranked outward opening mechanism used in an embodiment of this utility model;

[0059] Figure 3 This is a top view of the power supply component and power transmission component of a hand-cranked outward opening mechanism used in an embodiment of this utility model;

[0060] Figure 4 This is a top view schematic diagram of the overall structure of a hand-cranked outward opening mechanism used in an embodiment of this utility model;

[0061] Figure 5 This is a hand-cranked outward-opening mechanism used in an embodiment of the present invention. Figure 4 Enlarged view of point A in the diagram;

[0062] Figure 6 This is a bottom-view schematic diagram of the overall structure of a hand-cranked outward-opening mechanism used in an embodiment of this utility model;

[0063] Figure 7 This is a schematic diagram of the overall structure of the connecting arm of a hand-cranked outward opening mechanism used in an embodiment of this utility model;

[0064] Figure 8 This is a schematic diagram of the closed state of an outward-opening window using a hand-cranked outward-opening mechanism in an embodiment of this utility model;

[0065] Figure 9 This is a structural schematic diagram of a cantilever hinge machine assembly of a hand-cranked outward opening mechanism provided in an embodiment of this utility model;

[0066] Figure 10 This is a partial structural diagram of the locking structure of a hand-cranked outward-opening mechanism provided in an embodiment of this utility model;

[0067] Figure 11 This utility model provides a hand-cranked outward-opening mechanism. Figure 10 Enlarged view of point B in the image.

[0068] The above figures include the following reference numerals:

[0069] 11. Power supply assembly; 111. Handle; 112. Connecting handle;

[0070] 113. Receiving cavity; 1131. First chamber; 1132. Second chamber;

[0071] 114. Connecting groove; 115. Adapter block; 116. Connecting shaft; 117. Drive bevel gear;

[0072] 3. Power transmission assembly; 31. Transmission bevel gear; 32. Lead screw; 33. First connecting block; 34. Second connecting block; 35. Moving block;

[0073] 4. Locking mechanism; 41. Limit plate; 42. Limit post; 43. Locking block; 44. Locking post;

[0074] 45. Locking point; 46. Lock base; 47. Corner; 48. Sliding bar;

[0075] 5. Cantilever hinge assembly; 51. Fixing plate; 52. Fifth sliding groove; 53. Second slider; 54. First connecting rod; 55. Second connecting rod; 56. Third connecting rod;

[0076] 6. Window frame; 61. First sliding groove; 62. Second sliding groove;

[0077] 7. Outward-opening window; 71. Third sliding groove; 72. Fourth sliding groove;

[0078] 8. Actuating arm mechanism; 81. Connecting arm; 82. Sliding slot; 821. Moving slot; 822. Limiting slot; 83. First slider;

[0079] 9. Dustproof outer casing. Detailed Implementation

[0080] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0081] According to an embodiment of this utility model, a hand-cranked outward-opening mechanism is provided, including a window frame 6 and an outward-opening window 7. Please refer to [link / reference]. Figures 1 to 11The device includes: a power supply assembly 11, which is disposed on one side of the window frame 6; a power transmission assembly 3, which transmits the power provided by the power supply assembly 11 and is connected to the power supply assembly 11 in a transmission configuration; an actuating arm mechanism 8, which connects the power transmission assembly 3 to the outward-opening window 7 and limits the outward-opening window 7 when it is closed; and a locking mechanism 4, which is connected to the actuating arm mechanism 8 and has a limiting part for limiting the actuating arm mechanism 8, the limiting part being slidably connected to the actuating arm mechanism 8.

[0082] Power is provided by the power supply component 11, which drives the power transmission component 3 to move the actuator arm mechanism 8. Under the limit of the locking mechanism 4, the actuator arm mechanism 8 opens the outward opening window 7, so that there is no need to unlock with a wrench and then open the window by hand, which is simple to operate.

[0083] Please refer to Figure 2 and Figure 7 The actuator arm mechanism 8 includes: a connecting arm 81, one end of which is rotatably connected to the power transmission component 3; a sliding groove 82, which is formed through the connecting arm 81 on the side near the power transmission component 3; and a first slider 83, which is rotatably connected to the other end of the connecting arm 81 and is slidably connected to the bottom of the outward-opening window 7.

[0084] By setting the actuator arm mechanism 8 to limit the locking mechanism 4, the outward opening window 7 can be limited when closed, eliminating the need to lock the outward opening window with the handle.

[0085] Please refer to Figure 7 The sliding slot 82 includes: a moving slot 821; and a limiting slot 822, wherein the limiting slot 822 is connected to the moving slot 821.

[0086] When the outward-opening window 7 is closed, the limiting slot 822 limits the locking mechanism 4.

[0087] Please refer to Figure 2 , Figure 5 and Figure 8The power supply assembly 11 includes: a handle 111; a connecting handle 112, one end of which is rotatably connected to the handle 111, and the other end of which is rotatably disposed; a receiving cavity 113, which is formed on the connecting handle 112 and receives the handle 111; and a communicating groove 114, which is formed on the side of the connecting handle 112 away from the handle 111 and passes through... A connecting handle 112 passes through the side wall away from the handle 111; a transition block 115, one end of which is rotatably connected to the communicating groove 114, and the transition block 115 is placed inside the communicating groove 114; a connecting shaft 116, which is fixedly disposed on the side of the transition block 115 near the connecting handle 112, and the connecting shaft 116 is rotatably connected to the window frame 6; and a driving bevel gear 117, which is fixedly sleeved on the connecting shaft 116.

[0088] By placing the handle 111 into the receiving cavity 113 of the connecting handle 112, then folding the connecting handle 112 and the adapter block 115, and then rotating the adapter block 115 to fit the entire connecting handle 112 into the dustproof housing 9, the desired effect is achieved. Figure 8 As shown, this arrangement avoids exposing the entire power supply component 11, preventing harm to the human body, and also achieves a neat and aesthetically pleasing appearance.

[0089] Please refer to Figure 5 The receiving cavity 113 includes a first chamber 1131 and a second chamber 1132, the first chamber 1131 and the second chamber 1132 are in communication; the width of the second chamber 1132 is greater than the width of the first chamber 1131, and the second chamber 1132 is used to remove the handle 111 from the receiving cavity 113.

[0090] The second chamber 1132 allows the user to easily place their hand inside and remove the handle 111.

[0091] Please refer to Figure 2 and Figure 5It also includes: the power transmission assembly 3 comprising: a transmission bevel gear 31, which meshes with the drive bevel gear 117; a lead screw 32, one end of which is fixedly connected to the transmission bevel gear 31; a first connecting block 33, which is rotatably mounted on the lead screw 32, located near the transmission bevel gear 31, and fixed to one side of the window frame; and a second connecting block 34, which is mounted on... The lead screw 32 is located away from the transmission bevel gear 31 at one end. The second connecting block 34 is fixed to one side of the window frame and is located on the same side as the first connecting block 33. The moving block 35 is threadedly connected to the lead screw 32 and is rotatably connected to the connecting arm 81. The first connecting block 33 and the second connecting block 34 are bearing seats. A plane bearing is installed in the first connecting block 33 and a deep groove ball bearing is installed in the second connecting block 34. The lead screw 32 is connected through the two bearing seats.

[0092] Power is provided by the power supply component 11, which drives the transmission bevel gear 31 to rotate, thereby driving the lead screw 32 to rotate, causing the moving block 35 to move on the lead screw 32, thus providing power support to the actuator arm mechanism 8.

[0093] Please refer to Figure 1 , Figure 4 and Figure 6 The window frame 6 has a first sliding groove 61 on the side near the power transmission component 3, and a second sliding groove 62 on the other side of the first sliding groove 61; the outward opening window 7 has a third sliding groove 71 on the side near the power transmission component 3, and a fourth sliding groove 72 on one side of the third sliding groove 71, and the first slider 83 is slidably disposed inside the third sliding groove 71.

[0094] The locking mechanism 4 and the cantilever hinge assembly 5 are accommodated and placed through the first sliding groove 61 and the second sliding groove 62.

[0095] Please refer to Figures 1 to 3 and Figure 10 , Figure 11The limiting part is disposed within the first sliding groove 61. The limiting part includes: a limiting plate 41, which is fixedly installed within the first sliding groove 61; a limiting post 42, located on the side of the limiting plate 41 near the connecting arm 81, which is slidably disposed within the moving groove 821 and limited within the limiting slot 822; a locking block 43, which is slidably disposed within the first sliding groove 61; a locking post 44, which is slidably disposed within the third sliding groove 71; and a locking point 45, which is slidably disposed within the third sliding groove 71. The moving groove 71 contains: a locking seat 46, which is disposed in the first sliding groove 61 and engages with the locking point 45; a corner 47, which is disposed in the third sliding groove 71, with one end of the corner 47 connected to the locking point 45 via a transmission bar and the other end of the corner 47 connected to the locking post 44 via the transmission bar; and a sliding bar 48, which is slidably disposed in the first sliding groove 61, with the sliding bar 48 fixedly connected to the side of the moving block 35 near the limiting plate 41 and the side of the sliding bar 48 away from the moving block 35 fixedly connected to the locking block 43.

[0096] The sliding bar 48 moves, causing the locking block 43 to move. The locking block 43 moves the locking post 44. The locking post 44 moves and drives the transmission bar on the window frame 6. The corner 47 drives the transmission bar on the side. The locking point 45 is fixed on the transmission bar. The locking point 45 moves upward and disengages from the corresponding lock seat 46 on the window frame 6, thereby unlocking the window.

[0097] Please refer to Figure 1 and Figure 3It also includes a cantilever hinge assembly 5, which is disposed within a second sliding groove 62. The cantilever hinge assembly 5 includes: a fixed plate 51, which is fixed within the second sliding groove 62; a fifth sliding groove 52, which is formed on the fixed plate 51; a second slider 53, which slides in the fifth sliding groove 52; and a first connecting rod 54, one end of which is rotatably disposed on the fixed plate 51, and the other end of which is rotatably disposed within a fourth sliding groove 72. Two connecting rods 55, one end of which is rotatably connected to the second slider 53, and the other end of which is rotatably connected to the fourth sliding groove 72; a third connecting rod 56, one end of which is rotatably connected to the fixed plate 51, the third connecting rod 56 being located between the first connecting rod 54 and the second connecting rod 55, and the other end of which is rotatably connected to the middle of the second connecting rod 55. When the outward-opening window 7 is located within the window frame 6, the first connecting rod 54, the second connecting rod 55, and the third connecting rod 56 are folded and overlap with the fixed plate 51.

[0098] The opening and closing of the window frame 6 and the outward-opening window 7 are achieved through the cantilever hinge assembly 5.

[0099] The power supply component 11 can also be a motor, which is directly connected to the lead screw 32 via a coupling, thereby replacing the handle 111 and the connecting handle 112 to drive the drive bevel gear 117. A dustproof shell 9 is fixedly installed on one side of the window frame 6, and the dustproof shell 9 covers the outside of the power transmission component 3, the drive bevel gear 117 and the transmission bevel gear 31.

[0100] The dustproof housing 9 isolates external dust, preventing it from affecting the lead screw 32 and the moving block 35.

[0101] The function of the actuator arm mechanism 8 is to transform the linear motion of the lead screw 32 into a curved motion through the limit post 42 on the moving block 35. The front end of the motion trajectory is a straight line, and the rear end of the motion trajectory is a rotational motion. The rotation angle is opened. The fourth sliding groove 72 cooperates with the actuator arm mechanism 8. The first slider 83 can be a roller. The roller drives the outward opening window 7 to open or close when the locking point 45 is unlocked through the movement of the fourth sliding groove 72.

[0102] The locking mechanism 4 drives the execution arm mechanism 8 to move linearly via the moving block 35. When the front end of the execution arm mechanism 8 moves linearly, it drives the locking pin 44 in the third sliding groove 71 through the outward opening window 7, unlocking the locking point 45 of the entire window. Then, as the execution arm mechanism 8 rotates, the locking pin 44 disengages from the control of the locking block 43.

[0103] Working principle

[0104] by Figure 8 Initial state:

[0105] When opening the outward-opening window 7, first rotate the connecting handle 112 to make it perpendicular to the dustproof housing 9, then remove the handle 111 from the receiving cavity 113 to achieve... Figure 1 As shown in the handle 111 state, rotating the handle 111 drives the drive bevel gear 117 to rotate, which in turn drives the lead screw 32 to rotate. The lead screw 32 drives the moving block 35 to move, and the moving block 35 drives the connecting arm 81 to move. Simultaneously, the moving block 35 drives the sliding bar 48 to move, the sliding bar 48 drives the locking block 43 to move, the locking block 43 drives the locking pin 44 to move, and the locking pin 44 moves and drives the transmission bar on the window frame 6. It also drives the side transmission bar through the corner 47. A lock is fixed on the transmission bar. Point 45, the locking point 45 moves upward, disengaging from the corresponding locking seat 46 on the window frame 6, thereby unlocking the outward opening window 7 and the window frame 6. Through the limiting post 42 and the movement of the moving block 35, the connecting arm 81 is driven to provide the power to open the outward opening window 7. Then, the outward opening window 7 and the window frame 6 are connected by the cantilever hinge assembly 5. With the cooperation of the two, the outward opening window 7 is opened. This operation reduces the steps of unlocking with a wrench and then manually opening the window in the prior art. Compared with this, the operation of this application is simpler.

[0106] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0107] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0108] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0109] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0110] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A hand-cranked outward-opening mechanism, comprising a window frame (6) and an outward-opening window (7), characterized in that, A power supply assembly (11) is disposed on one side of the window frame (6); A power transmission assembly (3) is used to transmit the power provided by the power supply assembly (11), and the power transmission assembly (3) is connected to the power supply assembly (11) in a transmission configuration. An actuating arm mechanism (8) is used to connect the power transmission assembly (3) and the outward opening window (7). A locking mechanism (4) is connected to the execution arm mechanism (8). The locking mechanism (4) has a limiting part for limiting the execution arm mechanism (8), and the limiting part is slidably connected to the execution arm mechanism (8).

2. The hand-cranked outward-opening mechanism according to claim 1, characterized in that, The actuator arm mechanism (8) includes: Connecting arm (81), one end of which is rotatably connected to the power transmission assembly (3); A sliding slot (82) is provided through the connecting arm (81) on the side near the power transmission assembly (3); The first slider (83) is rotatably connected to the other end of the connecting arm (81), and the first slider (83) is slidably connected to the bottom of the outward opening window (7).

3. The hand-cranked outward-opening mechanism according to claim 2, characterized in that, The sliding slot (82) includes: Moving slot (821); The limiting slot (822) is connected to the moving slot (821). When the outward opening window (7) is closed, the limiting slot (822) limits the locking mechanism (4).

4. The hand-cranked outward-opening mechanism according to claim 3, characterized in that, The power supply component (11) includes: Handle (111); A connecting handle (112), one end of which is rotatably connected to the handle (111), and the other end of which is rotatably disposed; A receiving cavity (113) is formed on the connecting handle (112) and the receiving cavity (113) accommodates the handle (111). A connecting groove (114) is formed on the side of the connecting handle (112) away from the handle (111), and the connecting groove (114) penetrates the side wall of the connecting handle (112) away from the handle (111). A transition block (115) is provided, one end of which is rotatably connected to the connecting groove (114), and the transition block (115) is placed inside the connecting groove (114). A connecting shaft (116) is fixedly disposed on the side of the adapter block (115) near the connecting handle (112), and the connecting shaft (116) is rotatably connected to the window frame (6). A drive bevel gear (117) is fixedly sleeved on the connecting shaft (116).

5. The hand-cranked outward-opening mechanism according to claim 4, characterized in that, The receiving cavity (113) includes a first chamber (1131) and a second chamber (1132), the first chamber (1131) and the second chamber (1132) are in communication; the width of the second chamber (1132) is greater than the width of the first chamber (1131), and the second chamber (1132) is used to remove the handle (111) from the receiving cavity (113).

6. The hand-cranked outward-opening mechanism according to claim 4, characterized in that, Also includes: The power transmission assembly (3) includes: A transmission bevel gear (31) meshes with the drive bevel gear (117) for transmission. A lead screw (32), one end of which is fixedly connected to the transmission bevel gear (31); The first connecting block (33) is rotatably mounted on the lead screw (32), the first connecting block (33) is located on the side close to the transmission bevel gear (31), and the first connecting block (33) is fixed on one side of the window frame; The second connecting block (34) is sleeved on the end of the lead screw (32) away from the transmission bevel gear (31). The second connecting block (34) is fixed on one side of the window frame. The second connecting block (34) and the first connecting block (33) are located on the same side. The movable block (35) is threadedly connected to the lead screw (32) and is rotatably connected to the connecting arm (81).

7. The hand-cranked outward-opening mechanism according to claim 6, characterized in that, The window frame (6) has a first sliding groove (61) on the side near the power transmission assembly (3), and a second sliding groove (62) is provided on the other side of the first sliding groove (61); and / or, The outward-opening window (7) has a third sliding groove (71) on the side near the power transmission component (3), and a fourth sliding groove (72) is provided on one side of the third sliding groove (71). The first slider (83) is slidably arranged inside the third sliding groove (71).

8. The hand-cranked outward-opening mechanism according to claim 7, characterized in that, The limiting part is disposed in the first sliding groove (61), and the limiting part includes: A limiting plate (41) is fixedly installed in the first sliding groove (61); The limiting post (42) is located on the side of the limiting plate (41) near the connecting arm (81). The limiting post (42) is slidably disposed in the moving groove (821). The limiting post (42) is limited and disposed in the limiting slot (822). A snap-fit ​​block (43) is slidably disposed within the first sliding groove (61); The snap-fit ​​post (44) is slidably disposed in the third sliding groove (71). When the outward opening window (7) is closed, the snap-fit ​​post (44) engages with the snap-fit ​​block (43) to limit the engagement of the outward opening window (7). Locking point (45), which is slidably disposed in the third sliding groove (71); Lock seat (46), the lock seat (46) is disposed in the first sliding groove (61), and the lock seat (46) is engaged with the locking point (45); Angle (47) is provided in the third sliding groove (71). One end of the angle (47) is connected to the locking point (45) through a transmission bar, and the other end of the angle (47) is connected to the snap-fit ​​post (44) through the transmission bar. The sliding bar (48) is slidably disposed in the first sliding groove (61). The sliding bar (48) is fixedly connected to the side of the moving block (35) near the limiting plate (41), and the snap-fit ​​block (43) is fixedly connected to the side of the sliding bar (48) away from the moving block (35).

9. The hand-cranked outward-opening mechanism according to claim 7, characterized in that, It also includes a cantilever hinge assembly (5), which is disposed in the second sliding groove (62). The cantilever hinge assembly (5) includes a fixing plate (51), which is fixed in the second sliding groove (62). The fifth sliding groove (52) is formed on the fixed plate (51); The second slider (53) slides in the fifth sliding groove (52); The first connecting rod (54) has one end rotatably mounted on the fixed plate (51) and the other end rotatably mounted in the fourth sliding groove (72). The second connecting rod (55) has one end rotatably connected to the second slider (53), and the other end rotatably connected to the fourth sliding groove (72); The third link (56) has one end rotatably connected to the fixed plate (51), the third link (56) is located between the first link (54) and the second link (55), and the other end of the third link (56) is rotatably connected to the middle of the second link (55); When the outward-opening window (7) is located inside the window frame (6), the first link (54), the second link (55) and the third link (56) are folded and overlap with the fixing plate (51).

10. The hand-cranked outward-opening mechanism according to claim 6, characterized in that, The power supply assembly (11) includes a motor, which is directly connected to the lead screw (32) via a coupling; and / or, A dustproof shell (9) is fixedly installed on one side of the window frame (6), and the dustproof shell (9) covers the outside of the power transmission assembly (3), the drive bevel gear (117) and the transmission bevel gear (31).

Images