Hand-pull handle device and inward-opening and inward-tilting door and window system

Abstract

The present invention is applicable to the technical field of door and window hardware accessories, and discloses a hand-pull handle device and an inward-opening and inward-tilting door and window system. The hand-pull handle device includes a base, a transmission member, a first handle that can independently drive the transmission member, and a second handle that can independently drive the transmission member, the transmission member is slidably or rotationally connected to the base, and the first handle and the second handle are rotationally connected to the base. The inward-opening and inward-tilting door and window system includes an inward-opening and inward-tilting window sash and the above-mentioned hand-pull handle device. In the hand-pull handle device and the inward-opening and inward-tilting door and window system provided by the present invention, after the first handle and the second handle are lengthened, when one handle moves, it will not drive the other handle to touch the surface of the profile to prevent the movement of the handle, and the lengthened handle has a longer force arm while completing the handle function, which is more comfortable to use and better for user inspection.

Description

Technical Field

[0001] The invention belongs to the technical field of door and window hardware accessories, and in particular relates to a hand-pull handle device and an inward-opening and inward-tilting door and window system. Background Art

[0002] The existing door and window handles on the market are all operated to open and close by rotating in a direction parallel to the plane of the door and window. The human arm muscles are relatively strenuous in this rotating action, and most of them have only one handle, which is inconvenient to operate. Summary of the invention

[0003] The object of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a hand-pull handle device and an inward-opening and inward-tilting door and window system, which are easy to operate and labor-saving, and have good stability and reliability.

[0004] The technical solution of the present invention is: a hand-pull handle device, including a base, a transmission member, a first handle that can independently drive the transmission member, and a second handle that can independently drive the transmission member, the transmission member is slidably or rotatably connected to the base, and the first handle and the second handle are rotatably connected to the base.

[0005] Specifically, when the first handle drives the transmission member, the second handle is not affected, and when the second handle drives the transmission member, the first handle is not affected.

[0006] Specifically, the base is also connected to a locking component for preventing the first handle and the second handle from being pulled up at the same time.

[0007] Specifically, the base is connected to a driven gear, the transmission member is provided with a toothed structure, the driven gear is meshed with the toothed structure of the transmission member, the first handle is connected to a first driving gear, the second handle is connected to a second driving gear, the first driving gear and the second driving gear are respectively arranged on both sides of the base and meshed with the driven gear; the first handle or the first driving gear is provided with a first driving structure for driving the locking member to lock with the second driving gear, and the second handle or the second driving gear is provided with a second driving structure for driving the locking member to lock with the first driving gear.

[0008] Specifically, the transmission member has an initial position and sliding control positions arranged on both sides of the initial position. When the first handle is pulled up, the transmission member slides to one of the sliding control positions. When the second handle is pulled up, the transmission member slides to the other sliding control position.

[0009] Specifically, the base has a middle partition, the transmission member is located at the bottom of the middle partition, and the transmission member has a first spur tooth and a second spur tooth, and the first spur tooth and the second spur tooth are respectively arranged on both sides of the middle partition; the driven gear includes a first driven gear and a second driven gear, and the first driven gear and the second driven gear are respectively arranged on both sides of the middle partition and respectively meshed with the first spur tooth and the second spur tooth.

[0010] Specifically, the locking component includes a first pawl that can be driven when the first handle is pulled up, and a second pawl that can be driven when the second handle is pulled up, the first pawl is rotatably connected to the middle partition and is located between the first driving gear and the second driven gear, the second pawl is rotatably connected to the middle partition and is located between the second driving gear and the first driven gear, one side of the first pawl is provided with a first locking hook that can be clamped on the second driven gear, and one side of the second pawl is provided with a second locking hook that can be clamped on the first driven gear.

[0011] Specifically, the first driving gear has a first protrusion that can act on the first pawl when the first driving gear rotates; the second driving gear has a second protrusion that can act on the second pawl when the second driving gear rotates.

[0012] Specifically, the first driving gear includes a first driving tooth portion and a first toothless portion, a first avoidance groove is arranged between the first driving tooth portion and the first toothless portion, one side of the middle partition plate partially extends into the first avoidance groove, the first driving tooth portion is meshed with the first driven gear, and the first protrusion is arranged on the first toothless portion; the driving tooth portion and the first driven gear are located on the same side of the middle partition plate, and the first toothless portion and the first pawl are located on the other side of the middle partition plate.

[0013] The second driving gear includes a second driving tooth portion and a second toothless portion, a second avoidance groove is provided between the second driving tooth portion and the second toothless portion, the other side of the middle partition plate partially extends into the second avoidance groove, the second driving tooth portion is meshed with the second driven gear, and the second protrusion is provided on the second toothless portion.

[0014] Specifically, a pawl connecting hole for connecting the first pawl and the second pawl is provided in the middle of the middle partition near the upper end;

[0015] A first connecting hole for connecting the first driving gear is provided at one side of the middle partition;

[0016] A second connecting hole for connecting the second driving gear is provided at the other side of the middle partition plate;

[0017] The middle partition plate is provided with a driven gear connecting hole below the ratchet connecting hole for connecting the first driven gear and the second driven gear.

[0018] Specifically, the first pawl and the second pawl are connected with a resetting elastic member.

[0019] Specifically, the first spur teeth extend from one side of the transmission member along the length direction to the middle of the transmission member, and the second spur teeth extend from the other side of the transmission member along the length direction to the middle of the transmission member.

[0020] Specifically, the transmission member is provided with a first spur rack and a second spur rack, the first handle is provided with a first tooth shape which meshes with the first spur rack after being rotated by a set angle at the initial position, and the second handle is provided with a second tooth shape which meshes with the second spur rack after being rotated by a set angle at the initial position.

[0021] Specifically, after the first handle is rotated at a set angle at the initial position, the first tooth shape is meshed with the first spur rack, and when the first handle continues to be rotated, the transmission member is driven to slide in a direction away from the second handle;

[0022] After the second handle is rotated at a set angle at the initial position, the second tooth shape is meshed with the second spur rack, and when the second handle continues to be rotated, the transmission member is driven to slide in a direction away from the first handle.

[0023] Specifically, the first tooth shape and the second tooth shape are fan-shaped. In an initial state, the transmission member is located in the middle position between the first handle and the second handle, and the starting end of the first tooth shape is located on the side of the first spur rack close to the middle of the transmission member; in an initial state, the starting end of the second tooth shape is located on the side of the second spur rack close to the middle of the transmission member.

[0024] The present invention further provides an inward opening and tilting door and window system, comprising an inward opening and tilting window sash and the above-mentioned hand-pull handle device.

[0025] The present invention provides a hand-pull handle device and an inward-opening and inward-tilting door and window system, in which the first handle and the second handle adopt a hand-pull structure, and the handles can be pulled in a direction perpendicular to the plane of the door and window. This method is more in line with the principles of ergonomics. The direction of force exerted by the arm is along the direction of muscle contraction and extension. Users can directly and effectively use their own body weight inertia to operate the opening and closing of doors and windows, and the operation method is more humane. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a plan view of a hand-pull handle device provided in the first embodiment of the present invention;

[0028] Figure 2 It is a plan view of a first handle of a hand-pull handle device provided in Embodiment 1 of the present invention when being pulled up;

[0029] Figure 3 It is a three-dimensional exploded schematic diagram of a hand-pull handle device provided in the first embodiment of the present invention;

[0030] Figure 4 It is a plan view of a locking component in a hand-pull handle device provided in Embodiment 1 of the present invention;

[0031] Figure 5 It is a three-dimensional schematic diagram of a transmission member in a hand-pull handle device provided in the first embodiment of the present invention;

[0032] Figure 6 It is a plan view of a base in a hand-pull handle device provided in Example 1 of the present invention.

[0033] Figure 7 It is a partially exploded schematic diagram of a hand-pull handle device provided in the second embodiment of the present invention;

[0034] Figure 8 It is a three-dimensional exploded schematic diagram of a hand-pull handle device provided in the second embodiment of the present invention;

[0035] Fig. 9 It is a plan view of various components in an initial state of a hand-pull handle device provided in Embodiment 2 of the present invention;

[0036] Fig.10 It is a plan view of a first handle of a hand-pull handle device provided in Embodiment 2 of the present invention when being pulled up;

[0037] Fig.11 It is a plan view of a first handle of a hand-pull type handle device provided in Embodiment 2 of the present invention when being pulled up. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] Embodiment 1:

[0040] like Figures 1 to 6 As shown, a hand-pull handle device provided by an embodiment of the present invention includes a base 10, a transmission member 20, a first handle 31 that can independently drive the transmission member 20, and a second handle 32 that can independently drive the transmission member 20. The first handle 31 and the second handle 32 can independently control the same transmission member without interfering with each other. The first handle 31 and the second handle 32 can control different functions of the window sash, for example, the first handle 31 controls the window sash to open inward, and the second handle 32 controls the window sash to tilt inward. The transmission member 20 is slidably connected or rotatably connected to the base 10, the first handle 31 and the second handle 32 are rotatably connected to the base 10, the first handle 31 and the second handle 32 can be lengthened, and after the first handle 31 and the second handle 32 are lengthened, when one handle moves, it will not drive the other handle to touch the surface of the profile to prevent the handle from moving, and the lengthened handle has a longer force arm while completing the handle function, and is more comfortable to use.

[0041] Specifically, when the first handle 31 drives the transmission member 20 , it does not affect the second handle 32 , and when the second handle 32 drives the transmission member 20 , it does not affect the first handle 31 , thus providing a good user experience.

[0042] In specific applications, since the first handle 31 and the second handle 32 are connected to the same base 10, and the first handle 31 and the second handle 32 are both connected to the transmission member 20, when one handle is operated alone, the other handle may shake or even tilt slightly, which should also fall within the preset scope of the present invention. Of course, after optimization in terms of accuracy, when one handle is operated alone, the other handle can remain motionless, which also falls within the preset protection scope of the present invention.

[0043] Specifically, the first handle 31 and the second handle 32 are relatively symmetrically arranged, and can be used in inward opening and inward tilting doors and windows. The first handle 31 controls inward opening or inward tilting, and correspondingly, the second handle 32 controls inward tilting or inward opening. The rotating end of the first handle 31 and the rotating end of the second handle 32 are close to each other. The rotating end of the first handle 31 is provided with a first rotating shaft, and the rotating end of the second handle 32 is provided with a second rotating shaft, and the first rotating shaft is arranged parallel to the first rotating shaft. The first handle 31 and the second handle 32 can be arranged parallel to the profile surface in the initial state, and they can be pulled up in the direction perpendicular to the profile respectively. Generally, the first handle 31 and the second handle 32 can be pulled up in the vertical direction respectively.

[0044] A hand-pull handle device provided in an embodiment of the present invention includes a base 10, a transmission member 20, a first handle 31 and a second handle 32, wherein the transmission member 20 is slidably connected to the base 10, and the base 10 is rotatably connected with the first handle 31 and the second handle 32, and the first handle 31 and the second handle 32 can be pulled in a direction perpendicular to the window sash, and the base 10 is also connected to a locking component that is selectively locked to the first driving gear 41 or the second driving gear 42 so that the first handle 31 and the second handle 32 cannot be pulled up at the same time, and the first handle 31 or the first driving gear 41 is provided with a first driving structure for driving the locking component to lock to the second driving gear 42, and the second handle 32 or the second driving gear 42 is provided with a second driving structure for driving the locking component to lock to the first driving gear 41. The first handle 31 and the second handle 32 adopt a hand-pull structure, and the handles can be pulled in a direction perpendicular to the plane of the door and window. This method is more in line with the principles of ergonomics. The direction of the arm's force is along the direction of muscle contraction and contraction. Users can directly and effectively use their own body weight inertia to operate the opening and closing of doors and windows. The operation method is more humane, and the first handle 31 and the second handle 32 are prevented from error by a locking component. When the first handle 31 is pulled up, the second handle 32 is inoperable. Similarly, when the second handle 32 is pulled up, the first handle 31 is inoperable. The two sets of handles are used and the operation method that can be pulled up perpendicular to the plane of the window sash is more conducive to labor saving. Under the same pulling torque, the output torque of the transmission member 20 is larger.

[0045] Specifically, the transmission member 20 may be a shift fork, etc. The shift fork may be a sliding type or a swinging type (rotating type). The base 10 is connected to a driven gear, and the driven gear is meshed with the toothed structure of the transmission member 20. The first handle 31 is connected to a first driving gear 41, and the second handle 32 is connected to a second driving gear 42. The first driving gear 41 and the second driving gear 42 are respectively arranged on both sides of the base 10 and meshed with the driven gear; the locking component can be locked to the first driving gear 41 or the second driving gear 42 so that the first handle 31 and the second handle 32 cannot be pulled up at the same time.

[0046] Specifically, the transmission member 20 has an initial position and sliding control positions arranged on both sides of the initial position. When the first handle 31 is pulled up, the transmission member 20 slides from the initial position to one of the sliding control positions. When the second handle 32 is pulled up, the transmission member 20 slides from the initial position to the other sliding control position. The operation is simple.

[0047] Specifically, the base 10 has a middle partition 11, the transmission member 20 is located at the bottom of the middle partition 11 and can slide linearly along the length direction, and the transmission member 20 has a first straight tooth 21 and a second straight tooth 22. The tooth structure includes the first straight tooth 21 and the second straight tooth 22. The first straight tooth 21 and the second straight tooth 22 are arranged on both sides of the middle partition 11; the driven gear includes a first driven gear 51 and a second driven gear 52. The first driven gear 51 and the second driven gear 52 are respectively arranged on both sides of the middle partition 11 and mesh with the first straight tooth 21 and the second straight tooth 22 respectively. When the transmission member 20 is in the initial position, the end of the first straight tooth 21 and the end of the second straight tooth 22 are meshed with the first driven gear 51 and the second driven gear 52 respectively. After the transmission member 20 leaves the initial position, if the first straight tooth 21 is meshed with the first driven gear 51, the second straight tooth 22 is disengaged from the second driven gear 52. Moreover, after the transmission member 20 leaves the initial position, if the second spur teeth 22 are meshed with the second driven gear 52 , the first spur teeth 21 are disengaged from the first driven gear 51 , and the two sets of transmission structures do not interfere with each other.

[0048] Specifically, the locking component includes a first pawl 61 that can be driven when the first handle 31 is pulled up, and a second pawl 62 that can be driven when the second handle 32 is pulled up. The first pawl 61 is rotatably connected to the middle partition 11 and is located between the first driving gear 41 and the second driven gear 52. The second pawl 62 is rotatably connected to the middle partition 11 and is located between the second driving gear 42 and the first driven gear 51. A first locking hook that can be stuck to the second driven gear 52 is provided on one side of the first pawl 61, and a second locking hook that can be stuck to the first driven gear 51 is provided on one side of the second pawl 62. The first pawl 61 and the second pawl 62 can be separately arranged on both sides of the middle partition 11 and coaxially arranged.

[0049] Specifically, the first driving gear 41 has a first protrusion 413 that can act on the first pawl 61 when the first driving gear 41 rotates; the second driving gear 42 has a second protrusion 423 that can act on the second pawl 62 when the second driving gear 42 rotates. The first protrusion 413 and the second protrusion 423 are arranged in opposite directions.

[0050] Specifically, the first driving gear 41 includes a first driving tooth portion 411 and a first toothless portion 412, a first avoidance groove 410 is provided between the first driving tooth portion 411 and the first toothless portion 412, one side of the middle partition 11 partially extends into the first avoidance groove 410, and the first driving gear 41 can span one side of the middle partition 11 and be connected to the middle partition 11 through a rotating shaft. The first driving tooth portion 411 is meshed with the first driven gear 51, and the first protrusion 413 is provided on the first toothless portion 412; the driving tooth portion and the first driven gear 51 are located on the same side of the middle partition 11, the first toothless portion 412 and the first pawl 61 are located on the other side of the middle partition 11, and the second driving gear 42 can span the other side of the middle partition 11 and be connected to the middle partition 11 through a rotating shaft.

[0051] The second driving gear 42 includes a second driving tooth portion 421 and a second toothless portion 422, a second escape groove 420 is provided between the second driving tooth portion 421 and the second toothless portion 422, the other side of the middle partition 11 partially extends into the second escape groove 420, the second driving tooth portion 421 is meshed with the second driven gear 52, and the second protrusion 423 is provided on the second toothless portion 422. The first driving tooth portion 411, the first driven gear 51, the second pawl 62 and the second toothless portion 422 can be provided on one side of the middle partition 11; correspondingly, the second driving tooth portion 421, the second driven gear 52, the first pawl 61 and the first toothless portion 412 can be provided on the other side of the middle partition 11, and the structure is compact and ingenious.

[0052] Specifically, a pawl connecting hole 111 for connecting the first pawl 61 and the second pawl 62 is provided at the middle part of the middle partition 11 near the upper end; a first connecting hole 112 for connecting the first driving gear 41 is provided at one side of the middle partition 11; a second connecting hole 113 for connecting the second driving gear 42 is provided at the other side of the middle partition 11; and a driven gear connecting hole 114 for connecting the first driven gear 51 and the second driven gear 52 is provided below the pawl connecting hole 111. The pawl connecting hole 111, the first connecting hole 112, the second connecting hole 113 and the driven gear connecting hole 114 can be respectively penetrated by shafts. The first driven gear 51 and the second driven gear 52 can be connected to the two ends of the same shaft and can rotate independently. The first pawl 61 and the second pawl 62 can be connected to the two ends of the same shaft and can rotate independently.

[0053] Specifically, the first pawl 61 and the second pawl 62 may be connected with a resetting elastic member, which may be a spring. The resetting elastic member may also be arranged at the first handle 31 and the second handle 32, etc.

[0054] Specifically, the first spur teeth 21 extend from one side of the transmission member 20 to the middle of the transmission member 20 along the length direction, and the second spur teeth 22 extend from the other side of the transmission member 20 to the middle of the transmission member 20 along the length direction. The first spur teeth 21 and the second spur teeth 22 are only set to half the length of the transmission member 20, so that the transmission member 20 does not mesh with the first driven gear 51 and the second driven gear 52 at the same time, and can achieve their respective relatively independent transmission functions. The base 10 can be connected to a decorative cover 70.

[0055] An embodiment of the present invention further provides an inward opening and tilting door and window system, comprising an inward opening and tilting window sash and the above-mentioned hand-pull handle device.

[0056] In specific applications, the hand-pull handle device can also be simplified to a single handle structure. The double handle structure is applied to the inward-opening and inward-tilting window handles, and the single handle structure can be applied to casement windows, sliding windows, sliding doors, and casement doors.

[0057] A hand-pull handle device and an inward-opening and inward-tilting door and window system provided by an embodiment of the present invention, wherein a driving wheel is provided on the handle, and the driving wheel drives the driven wheel to rotate, thereby driving the transmission member 20 to achieve linear motion, thereby achieving the movement of the door and window hardware. While the handle drives the driving wheel to rotate, one of the ratchets is manipulated by the raised portion of the rotating driving wheel, and the ratchets are provided with a raised structure (raised portion) for clamping the gear of the other driving wheel. The ratchets rotate around their own rotation axis, and the raised portion of the ratchets can be clamped into the gear meshing portion of the other driving gear, causing the other driving gear to be locked and unable to rotate, thereby achieving that only one of the two handles can be manipulated at a time to drive the transmission member 20 to move. The components on both sides of the middle partition 11 of the base 10 belong to two sets of relatively independently operated transmission mechanisms, and the two sets of mechanisms realize the locking and unlocking between the two handles through the movement and opening and closing of the two ratchets. When one handle is started, the other handle cannot be started. The gear portion of the driving gear is provided with a gear on one side and a gearless structure on the other side. The geared side and the driven wheel are in a meshing transmission state, while the gearless side and the driven wheel are in a non-transmission function state.

[0058] The first driving gear 41 drives the first driven gear 51 to transmit, and the first driven gear 51 drives the corresponding tooth shape on one side of the rack to transmit. At this time, since there is no gear set on the other side of the driving gear 1, it cannot drive the driven gear 2 to transmit, so there will be no power transmission with the second driving gear 42, and no interference movement with the second handle 32. At this time, the convex part of the first driving gear 41 drives the first pawl 61 to rotate, and the second handle 32 is engaged and locked by the convex part of the first pawl 61. Therefore, when the first handle 31 is operated and started by the user, the second handle 32 cannot be started, and vice versa. This structure avoids misoperation and has better stability.

[0059] Embodiment two:

[0060] like Figures 7 to 11 As shown, a hand-pull handle device includes a base 10, a transmission member 20, a first handle 31 that can independently drive the transmission member 20, and a second handle 32 that can independently drive the transmission member 20. The first handle 31 and the second handle 32 can independently control the same transmission member without interfering with each other. The first handle 31 and the second handle 32 can control different functions of the window sash, for example, the first handle 31 controls the window sash to open inward, and the second handle 32 controls the window sash to tilt inward. The transmission member 20 is slidably connected or rotatably connected to the base 10, the first handle 31 and the second handle 32 are rotatably connected to the base 10, the first handle 31 and the second handle 32 can be lengthened, and after the first handle 31 and the second handle 32 are lengthened, when one handle moves, it will not drive the other handle to touch the surface of the profile to prevent the handle from moving, and the lengthened handle has a longer force arm while completing the handle function, and is more comfortable to use.

[0061] Specifically, when the first handle 31 drives the transmission member 20 , it does not affect the second handle 32 , and when the second handle 32 drives the transmission member 20 , it does not affect the first handle 31 , thus providing a good user experience.

[0062] Specifically, the first handle 31 and the second handle 32 are relatively symmetrically arranged. The above-mentioned hand-pull handle device can be used in doors and windows that open and tilt inward. The first handle 31 controls the inward opening or tilting, and correspondingly, the second handle 32 controls the inward tilting or opening. The rotating end of the first handle 31 and the rotating end of the second handle 32 are close to each other. The rotating end of the first handle 31 is provided with a first rotating shaft, and the rotating end of the second handle 32 is provided with a second rotating shaft, and the first rotating shaft is arranged parallel to the first rotating shaft. The first handle 31 and the second handle 32 can be arranged parallel to the surface of the profile in the initial state, and they can be pulled up in the direction perpendicular to the profile respectively. Generally, the first handle 31 and the second handle 32 can be pulled up in the vertical direction respectively.

[0063] Specifically, the transmission member 20 is provided with a first spur rack 21 and a second spur rack 22, the first handle 31 is provided with a first tooth shape 311 which engages with the first spur rack 21 after being rotated by a set angle at the initial position, and the second handle 32 is provided with a second tooth shape 321 which engages with the second spur rack 22 after being rotated by a set angle at the initial position.

[0064] Specifically, after the first handle 31 is rotated at a set angle at the initial position, the first tooth shape 311 is meshed with the first spur rack 21, and when the first handle 31 is continuously rotated, the transmission member 20 is driven to slide in a direction away from the second handle 32 (such as Fig.10 shown);

[0065] After the second handle 32 is rotated at a set angle at the initial position, the second tooth shape 321 is meshed with the second spur rack 22, and when the second handle 32 is further rotated, the transmission member 20 is driven to slide in a direction away from the first handle 31 (such as Fig.11 shown).

[0066] Specifically, the first tooth shape 311 and the second tooth shape 321 are fan-shaped. In the initial state, the transmission member 20 is located in the middle position below the first handle and the second handle, and the transmission member 20 slides to both sides without interfering with the first tooth shape 311 and the second tooth shape 321. The starting end of the first tooth shape 311 is located on the side of the first spur rack 21 close to the middle of the transmission member 20; in the initial state, the starting end of the second tooth shape 321 is located on the side of the second spur rack 22 close to the middle of the transmission member 20. That is, after the first tooth shape 311 rotates a certain angle, the starting end of the first tooth shape 311 drops (descends while rotating) and begins to mesh with the first spur rack 21. After the second tooth shape 321 rotates a certain angle, the starting end of the second tooth shape 321 drops (descends while rotating) and begins to mesh with the second spur rack 22. When the first handle 31 moves from the starting position, the first tooth shape 311 of the first handle 31 and the first spur rack 21 enter the meshing state from the original disengaged state (such as Fig.10 As shown in FIG. 1 ), the transmission member 20 is driven to transmit. When the first handle 31 returns to the initial state, the gear (first tooth shape 311) is disengaged from the first spur rack 21. At this time, the second handle 32 can be started, and the second tooth shape 321 of the second handle 32 is engaged with the second spur rack 22 (as shown in FIG. 1 ). Fig.11 As shown), the transmission member 20 is driven to transmit, whereby the two handles can transmit the transmission member 20 (shift fork) alternately with each other.

[0067] In a specific application, the transmission member 20 may be connected to a reset member for automatically resetting the transmission member 20 to an initial position (intermediate position), and the reset member may be a spring, etc. The reset member may be disposed on one side or both sides of the transmission member 20. The base 10 may be connected to a decorative cover 70.

[0068] Specifically, the first straight tooth 21 extends from one side of the transmission member 20 along the length direction to the middle of the transmission member 20, and the second straight tooth 22 extends from the other side of the transmission member 20 along the length direction to the middle of the transmission member 20. The first straight tooth 21 and the second straight tooth 22 are both only set to half the length of the transmission member 20, and the first straight tooth 21 and the second straight tooth 22 can be aligned or staggered.

[0069] An embodiment of the present invention further provides an inward opening and tilting door and window system, comprising an inward opening and tilting window sash and the above-mentioned hand-pull handle device.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hand-pull handle device, characterized in that: It comprises a base, a transmission member, a first handle capable of independently driving the transmission member, and a second handle capable of independently driving the transmission member, wherein the transmission member is slidably or rotationally connected to the base, and the first handle and the second handle are rotationally connected to the base; The base is also connected to a locking component for preventing the first handle and the second handle from being pulled up at the same time; the base is connected to a driven gear, the transmission member is provided with a toothed structure, the driven gear meshes with the toothed structure of the transmission member, the first handle is connected to a first driving gear, the second handle is connected to a second driving gear, the first driving gear and the second driving gear are respectively arranged on both sides of the base and mesh with the driven gear; The first handle or the first driving gear is provided with a first driving structure for driving the locking component to lock with the second driving gear, and the second handle or the second driving gear is provided with a second driving structure for driving the locking component to lock with the first driving gear.

2. A hand-pull handle device as claimed in claim 1, characterized in that: When the first handle drives the transmission member, the second handle is not affected. When the second handle drives the transmission member, the first handle is not affected.

3. A hand-pull handle device as claimed in claim 1, characterized in that: The first handle and the second handle are arranged relatively symmetrically, the rotating end of the first handle and the rotating end of the second handle are close to each other, the rotating end of the first handle is provided with a first rotating shaft, the rotating end of the second handle is provided with a second rotating shaft, and the first rotating shaft is arranged parallel to the first rotating shaft.

4. A hand-pull handle device as claimed in claim 1, characterized in that: The transmission member has an initial position and sliding control positions arranged on both sides of the initial position. When the first handle is pulled up, the transmission member slides to one of the sliding control positions, and when the second handle is pulled up, the transmission member slides to the other sliding control position.

5. A hand-pull handle device as claimed in claim 4, characterized in that: The base has a middle partition, the transmission member is located at the bottom of the middle partition, and the transmission member has a first spur tooth and a second spur tooth, the first spur tooth and the second spur tooth are respectively arranged on both sides of the middle partition; the driven gear includes a first driven gear and a second driven gear, the first driven gear and the second driven gear are respectively arranged on both sides of the middle partition and are respectively meshed with the first spur tooth and the second spur tooth.

6. A hand-pull handle device as claimed in claim 5, characterized in that: The locking component includes a first pawl that can be driven when the first handle is pulled up, and a second pawl that can be driven when the second handle is pulled up, the first pawl is rotatably connected to the middle partition and is located between the first driving gear and the second driven gear, the second pawl is rotatably connected to the middle partition and is located between the second driving gear and the first driven gear, one side of the first pawl is provided with a first locking hook that can be clamped on the second driven gear, and one side of the second pawl is provided with a second locking hook that can be clamped on the first driven gear.

7. A hand-pull handle device as claimed in claim 6, characterized in that: The first driving gear has a first protrusion that can act on the first pawl when the first driving gear rotates; the second driving gear has a second protrusion that can act on the second pawl when the second driving gear rotates; the first driving gear includes a first driving tooth portion and a first toothless portion, a first avoidance groove is provided between the first driving tooth portion and the first toothless portion, one side of the middle partition plate partially extends into the first avoidance groove, the first driving tooth portion is meshed with the first driven gear, and the first protrusion is provided on the first toothless portion; the driving tooth portion and the first driven gear are located on the same side of the middle partition plate, and the first toothless portion and the first pawl are located on the other side of the middle partition plate; The second driving gear includes a second driving tooth portion and a second toothless portion, a second avoidance groove is provided between the second driving tooth portion and the second toothless portion, the other side of the middle partition plate partially extends into the second avoidance groove, the second driving tooth portion is meshed with the second driven gear, and the second protrusion is provided on the second toothless portion.

8. A hand-pull handle device as claimed in claim 7, characterized in that: A pawl connecting hole for connecting the first pawl and the second pawl is provided in the middle of the middle partition near the upper end; A first connecting hole for connecting the first driving gear is provided at one side of the middle partition; A second connecting hole for connecting the second driving gear is provided at the other side of the middle partition plate; The middle partition plate is provided with a driven gear connecting hole below the ratchet connecting hole for connecting the first driven gear and the second driven gear.

9. The hand-pull handle device according to claim 5, characterized in that: The first spur teeth extend from one side of the transmission member to the middle of the transmission member along the length direction, and the second spur teeth extend from the other side of the transmission member to the middle of the transmission member along the length direction.

10. A hand-pull handle device according to any one of claims 1 to 3, characterized in that: The transmission member is provided with a first straight rack and a second straight rack, the first handle is provided with a first tooth shape that meshes with the first straight rack after rotating a set angle at an initial position, and the second handle is provided with a second tooth shape that meshes with the second straight rack after rotating a set angle at an initial position.

11. A hand-pull handle device as claimed in claim 10, characterized in that: After the first handle is rotated at a set angle at the initial position, the first tooth shape is meshed with the first spur rack, and when the first handle continues to be rotated, the transmission member is driven to slide in a direction away from the second handle; After the second handle is rotated at a set angle at the initial position, the second tooth shape is meshed with the second spur rack, and when the second handle continues to be rotated, the transmission member is driven to slide in a direction away from the first handle.

12. A hand-pull handle device according to claim 11, characterized in that: The first tooth shape and the second tooth shape are fan-shaped. In an initial state, the transmission member is located in the middle position between the first handle and the second handle, and the starting end of the first tooth shape is located on the side of the first spur rack close to the middle of the transmission member; in an initial state, the starting end of the second tooth shape is located on the side of the second spur rack close to the middle of the transmission member.

13. An inward opening and tilting door and window system, characterized in that: The invention comprises an inward opening and tilting window sash and a hand-pull handle device as claimed in any one of claims 1 to 12.

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