Hand-cranking driving box for chain type window opener

Abstract

The utility model discloses a hand-cranking driving box for a chain type window opener, which comprises a box body and a steering driver arranged in the box body, the steering driver is provided with a driving shaft which rotatably penetrates through the box body, the outer end of the driving shaft is connected with a crank, and one side, deviating from the crank, of the box body is provided with a mounting bracket in a rotatable and lockable manner. According to the hand-cranking driving box, the installation support is assembled in a rotatable and lockable mode, the relative angle between the installation support and the steering driver can be adjusted according to the target position or the installation angle of the steering driver, and therefore the hand-cranking driving box can adapt to different target positions or different installation angles.

Description

Technical Field

[0001] The utility model relates to the technical field of window accessories, in particular to a hand-cranked drive box for a chain-type window opener. Background Art

[0002] A chain window opener is a commonly used window opening and closing device. Its working principle is to drive the sprocket to rotate through a driving device to drive the chain to extend and retract, thereby realizing the opening and closing action of the window.

[0003] Chinese patent CN2023216360571 discloses a window opener with a telescopic drive shaft. The window opener includes a hand-cranked drive box, which is mounted at a target location via plate-like mounting brackets located on either side. However, in practice, due to the varying shapes of target locations, the plate-like mounting brackets are difficult to adapt to multiple target locations, significantly limiting the window opener's installation applicability. Furthermore, the plate-like mounting brackets restrict the installation direction of the hand-cranked drive box, limiting its installation direction and location, making it unable to meet the diverse installation needs of users in different scenarios. Utility Model Content

[0004] In view of this, the present invention provides a chain-type window opener with a hand-cranked drive box, which can use the same mounting bracket to adapt to target positions of different shapes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A chain-type window opener is provided with a hand-cranked drive box, comprising a box body and a steering drive arranged in the box body. The steering drive has a drive shaft that rotates and passes through the box body. The outer end of the drive shaft is connected to a crank. The side of the box body facing away from the crank is provided with a mounting bracket in a rotatable and lockable manner.

[0007] In order to better implement the above technical solution, optionally, there are two mounting brackets, which are respectively arranged at the two ends of the box body away from the crank.

[0008] Optionally, each mounting bracket includes a fixing screw, a nut and a bracket body, the bracket body includes two side ear plates arranged opposite to each other and a vertical plate portion fixed to the same end side of the ear plates on both sides, the other end of the ear plates on both sides is provided with a coaxial first connecting hole, the vertical plate portion is provided with a second connecting hole, the center axis of the second connecting hole is perpendicular to the center axis of the first connecting hole, the box body has a third connecting hole coaxial with the first connecting hole, and the rod end of the fixing screw passes through the first connecting hole and the third connecting hole and is screwed with a nut.

[0009] Optionally, there are two second connection holes arranged at intervals.

[0010] Optionally, one of the first connecting holes is a circular hole, and the other is a hexagonal hole.

[0011] Optionally, the crank includes a main arm and a folding arm, one end of the main arm is connected to the outer end of the drive shaft, and a receiving slot is provided in the length direction of the main arm away from the drive shaft. One end of the folding arm is hinged to the end of the receiving slot away from the main arm, and the other end of the folding arm rotates around the hinge point and can be extended into / out of the receiving slot.

[0012] Optionally, an extension rod is further included, one end of the extension rod is connected to the outer end of the drive shaft, and the other end of the extension rod is connected to one end of the main arm.

[0013] Optionally, the steering drive is a single-output shaft steering drive or a dual-output shaft steering drive.

[0014] Beneficial effects of the utility model:

[0015] The hand-cranked drive box of the utility model is equipped with a mounting bracket that is assembled in a rotatable and lockable manner. The mounting bracket can adjust the relative angle between the mounting bracket and the steering driver according to the target position or the mounting angle of the steering driver, thereby adapting to different target positions or different installation angles.

[0016] The hand-cranked drive box of the utility model can enable the crank to avoid narrow places such as windowsills by arranging the extension rod, thereby further facilitating the operation of the crank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the first structure of a chain-type window opener with a hand-cranked drive box in Example 1 of the present utility model (the steering drive is a clockwise single-output shaft steering drive);

[0018] Figure 2 This is a front view of the second structure of a chain-type window opener with a hand-cranked drive box in Example 1 of the present utility model (the steering drive is a counterclockwise single-output shaft steering drive);

[0019] Figure 3 This is a front view of the third structure of a chain-type window opener with a hand-cranked drive box in Example 1 of the present utility model (the steering drive is a dual-output shaft bidirectional output steering drive);

[0020] Figure 4 This is a front view of the fourth structure of a chain-type window opener with a hand-cranked drive box in Example 1 of the present utility model (the steering drive is a steering drive with dual output shafts and same-direction output);

[0021] Figure 5 This is a schematic diagram of the installation of a chain-type window opener with a hand-cranked drive box according to Example 1 of the present utility model;

[0022] Figure 6 yes Figure 1 A three-dimensional schematic diagram of the middle bracket body;

[0023] Figure 7 yes Figure 1 Cross-sectional view of the middle crank;

[0024] Figure 8 This is a schematic diagram of the installation of a chain-type window opener with a hand-cranked drive box according to embodiment 2 of the present invention;

[0025] Reference numerals:

[0026] Box body 10, third connecting hole 101, drive shaft 20, crank 30, main arm 31, accommodating groove 311, folding arm 32, bracket body 40, side ear plate part 41, first connecting hole 411, upright plate part 42, second connecting hole 421, fixing screw 50, nut 60, extension rod 70. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments, wherein the same components are represented by the same reference numerals.

[0028] See also Figures 1 to 7 The embodiment of the utility model discloses a chain window opener with a hand-cranked drive box, which includes a box body 10, a steering driver, a crank 30 and a mounting bracket.

[0029] Among them, the steering drive is assembled in the box body 10, and the steering drive is a single-output shaft steering drive or a dual-output shaft steering drive. The single-output shaft steering drive and the dual-output shaft steering drive are both common steering drives on the market and will not be repeated here.

[0030] like Figures 1 to 4 As shown, the steering drive has a drive shaft 20 that rotates through the box body 10. The drive shaft 20 is a square rod or a hexagonal rod. The outer end of the drive shaft 20 is connected to a crank 30. The side of the box body 10 facing away from the crank 30 is provided with a mounting bracket in a rotatable and lockable manner.

[0031] The hand-cranked drive box of the embodiment of the present invention can drive the drive shaft 20 to rotate by rotating the crank 30. The rotation of the drive shaft 20 and the gear steering assembly in the steering driver drive the single output shaft or the dual output shaft to rotate, thereby achieving the purpose of the hand-cranked drive box driving the window opener body to open and close the window. Through the mounting bracket assembled in a rotatable and lockable manner, the relative angle between the mounting bracket and the steering driver can be adjusted according to the target position or the installation angle of the steering driver, thereby adapting to different target positions or different installation angles.

[0032] In an embodiment of the present invention, there are two mounting brackets, which are respectively arranged at the two ends of the box body 10 away from the crank 30. The provision of two mounting brackets can make the hand-cranked drive box more stable. At the same time, the two mounting brackets are arranged at the two ends of one side of the box body 10, which can make the installation more convenient.

[0033] In the embodiment of the present utility model, each mounting bracket includes a fixing screw 50, a nut 60 and a bracket body 40, the bracket body 40 includes two side ear plate portions 41 arranged opposite to each other and a vertical plate portion 42 fixed to the same end side of the ear plate portions 41 on both sides, the other end of the ear plate portions 41 on both sides is provided with a coaxial first connecting hole 411, and the vertical plate portion 42 is provided with a second connecting hole 421, the central axis of the second connecting hole 421 is perpendicular to the central axis of the first connecting hole 411, and the box body 10 has a first connecting hole 411 and a second connecting hole 421. 11 coaxial third connecting hole 101, the rod end of the fixing screw 50 passes through the first connecting hole 411 and the third connecting hole 101 and is screwed with a nut 60, wherein the second connecting holes 421 are two spaced apart. By setting two second connecting holes 421 and fixing the bracket body 40 with matching fixing screws, the stability of the bracket body 40 is higher. One of the holes in the first connecting hole 411 is a round hole, and the other hole is a hexagonal hole. The hexagonal hole is used to place the nut 60, making the connection between the screw and the nut 60 more convenient.

[0034] In the embodiment of the present invention, it should be noted that Figure 5 In the embodiment, the length of the bracket body 40 is different, so as to be installed as follows Figure 6 The hand-crank drive box in the.

[0035] In an embodiment of the present invention, the crank 30 includes a main arm 31 and a folding arm 32. One end of the main arm 31 is connected to the outer end of the drive shaft 20. A receiving groove 311 is provided in the length direction of the main arm 31 away from the drive shaft 20. One end of the folding arm 32 is hinged to the end of the receiving groove 311 away from the main arm 31. The other end of the folding arm 32 rotates around the hinge point and can be extended into / out of the receiving groove 311. When the crank 30 is not in use, the folding arm 32 can be screwed into the receiving groove 311. When the crank 30 is in use, the folding arm 32 is rotated so that the folding arm 32 extends out of the receiving groove 311 until the folding arm 32 is perpendicular to the main arm 31. By rotating the folding arm 32, the main arm 31 can be driven to rotate, so that the single output shaft or dual output shaft of the steering drive is rotated. The provision of the folding arm 32 and the receiving groove 311 can make the crank 30 structure more compact and beautiful.

[0036] Example 2

[0037] like Figure 8As shown, this embodiment is similar to embodiment 1, except that it further includes an extension rod 70, one end of the extension rod 70 is connected to the outer end of the drive shaft 20, and the other end of the extension rod 70 is connected to one end of the main arm 31. By providing the extension rod 70, the crank 3 can avoid narrow areas such as windowsills, which can further facilitate the operation of the crank 30.

[0038] The above-mentioned technical scheme of the present invention is described in detail with reference to specific embodiments. The specific embodiments described are used to help understand the concept of the present invention. Derivations and modifications made by those skilled in the art based on the specific embodiments of the present invention also fall within the scope of protection of the present invention.

Claims

1. A chain window opener with a hand-cranked drive box, comprising a box body (10) and a steering drive arranged in the box body (10), wherein the steering drive has a drive shaft (20) that rotates through the box body (10), and the outer end of the drive shaft (20) is connected to a crank (30), characterized in that: A mounting bracket is provided on a side of the box body (10) facing away from the crank (30) in a rotatable and lockable manner.

2. A chain window opener with a hand-cranked drive box according to claim 1, characterized in that: There are two mounting brackets, which are respectively arranged at two ends of the box body (10) on a side away from the crank (30).

3. A chain window opener with a hand-cranked drive box according to claim 2, characterized in that: Each mounting bracket includes a fixing screw (50), a nut (60) and a bracket body (40), wherein the bracket body (40) includes two side ear plates (41) arranged opposite to each other and a vertical plate (42) fixed to the same end side of the ear plates (41) on both sides, the other end of the ear plates (41) on both sides is provided with a coaxial first connecting hole (411), the vertical plate (42) is provided with a second connecting hole (421), the central axis of the second connecting hole (421) is perpendicular to the central axis of the first connecting hole (411), the box body (10) has a third connecting hole (101) coaxial with the first connecting hole (411), and the rod end of the fixing screw (50) passes through the first connecting hole (411) and the third connecting hole (101) and is screwed with a nut (60).

4. A chain window opener with a hand-cranked drive box according to claim 3, characterized in that: The second connection holes (421) are two arranged at intervals.

5. A chain window opener with a hand-cranked drive box according to claim 3, characterized in that: One of the first connecting holes (411) is a circular hole, and the other is a hexagonal hole.

6. A chain window opener with a hand-cranked drive box according to claim 1, characterized in that: The crank (30) includes a main arm (31) and a folding arm (32), one end of the main arm (31) is connected to the outer end of the drive shaft (20), and a receiving groove (311) is provided in the length direction of the main arm (31) away from the drive shaft (20). One end of the folding arm (32) is hinged to the end of the receiving groove (311) away from the main arm (31), and the other end of the folding arm (32) rotates around the hinge point and can be extended into / out of the receiving groove (311).

7. A chain window opener with a hand-cranked drive box according to claim 1, characterized in that: It also includes an extension rod (70), one end of which is connected to the outer end of the drive shaft (20), and the other end of which is connected to one end of the main arm (31).

8. The chain window opener according to claim 1, characterized in that: The steering drive is a single-output shaft steering drive or a dual-output shaft steering drive.

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