Hand-cranking arm type window opener capable of being operated in labor-saving mode

Abstract

The hand-cranking structure comprises a first telescopic rod, a second telescopic rod and lock catches, a handle is arranged at one end of the first telescopic rod, the second telescopic rod is sleeved with the first telescopic rod, the lock catches are symmetrically arranged at the end, away from the handle, of the first telescopic rod, and the second telescopic rod is sleeved with the lock catches. The fixing device is used for fixing the first telescopic rod at different positions of the second telescopic rod; the transmission device comprises a first rod and a second rod, the first rod is rotatably connected to the hand-cranking structure through a bevel gear and is driven by the hand-cranking structure, and the second rod is vertically and rotatably connected to the first rod through a bevel gear and is driven by the first rod; the window opening connecting rod comprises a first connecting rod and a second connecting rod, the first connecting rod is rotationally connected to one end of the second connecting rod, the other end of the second connecting rod is connected to the second rod, and the window opening connecting rod is driven by the second rod.

Description

Technical Field

[0001] The present application relates to the technical field of window openers, and in particular to a hand crank type window opener for labor-saving operation. Background Art

[0002] A window opener is a device used to open and close windows, usually installed on the top or side of the window. Traditional window openers are usually manually operated, opening or closing windows by hand cranking, electric power, etc. Some non-electric window openers can drive multiple window openers at the same time, but it is more laborious. Although the laborious problem can be solved by lengthening the hand crank arm, the overly long rocker arm takes up a lot of space. Therefore, how to solve the problem of saving labor and space occupation at the same time is the purpose of this application.

[0003] The above contents are used only to assist in understanding the technical solution of the present application, and do not constitute an admission that the above contents are the closest prior art to the present application. Summary of the invention

[0004] Based on this, the present application provides a hand-cranked window opener with labor-saving operation to solve one of the above-mentioned technical problems.

[0005] The technical solution adopted by the present application to solve its technical problems is as follows: a hand-cranked structure, comprising a first telescopic rod, a second telescopic rod, and a lock, wherein a handle is provided at one end of the first telescopic rod and is sleeved on the second telescopic rod, and the lock is symmetrically arranged at an end away from the handle, and is used to fix the first telescopic rod at different positions of the second telescopic rod; a transmission device, comprising a first rod and a second rod, the first rod is rotatably connected to the hand-cranked structure through a bevel gear and is driven by the hand-cranked structure, the second rod is vertically rotatably connected to the first rod through a bevel gear and is driven by the first rod; a window opening connecting rod, comprising a first connecting rod and a second connecting rod, the first connecting rod is rotatably connected to one end of the second connecting rod, and the other end is connected to the second rod and is driven by the second rod.

[0006] In some embodiments, the lock includes a pin, a spring, and a locking block. The locking block is arranged at one end of the pin, and convex portions are formed on both sides of the other end of the pin. The spring is used to apply a force to the pin to always move toward the inside of the first telescopic rod. The second telescopic rod is provided with a plurality of sockets that cooperate with the locking block.

[0007] In some embodiments, the lock buckle also includes a buckle, and the buckle shape is roughly L-shaped.

[0008] In some embodiments, the buckle is rotatably disposed on the protrusion.

[0009] In some embodiments, lugs are formed at both ends of the outer side of the second telescopic rod, and a radially penetrating groove cooperating with the lugs is formed on the inner wall of the first telescopic rod.

[0010] In some embodiments, the first rod and the second rod are driven by bevel gears.

[0011] In some embodiments, the window opening connecting rod is connected to the second rod by bolts and nuts.

[0012] The beneficial effect of the present application is that the hand crank arm adopts a telescopic rod structure, so that the length of the hand crank arm can be lengthened when in use, so that less force is applied when opening or closing the window. After use, the lock can be opened to shorten the length of the hand crank arm to reduce the occupied space and adapt to different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of this application.

[0015] Figure 2 It is a schematic diagram of the installation of the hand crank arm of this application.

[0016] Figure 3 It is a cross-sectional schematic diagram of the installation of the hand crank arm of the present application.

[0017] Figure 4 This application Figure 3 A is an enlarged schematic diagram.

[0018] Explanation of the accompanying drawings: 1. Hand-crank structure; 11. First telescopic rod; 111. Handle; 12. Second telescopic rod; 13. Lock; 131. Latch; 132. Spring; 133. Lock block; 134. Buckle; 2. Transmission device; 21. First rod; 22. Second rod; 3. Window opening connecting rod; 31. First connecting rod; 32. Second connecting rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to achieve. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection of this application.

[0020] In the embodiments of this application, please refer to Figure 1-4 As shown, the present application provides a hand-cranked window opener with labor-saving operation, mainly comprising: a hand-cranked structure 1, comprising a first telescopic rod 11, a second telescopic rod 12, and a lock 13, wherein one end of the first telescopic rod 11 is provided with a handle 111, which is sleeved on the second telescopic rod 12, and the lock 13 is symmetrically arranged at an end away from the handle 111, and is used to fix the first telescopic rod 11 at different positions of the second telescopic rod 12; a transmission device 2, comprising a first rod 21 and a second rod 22, the first rod 21 is rotatably connected to the hand-cranked structure 1 through a bevel gear and is driven by the hand-cranked structure 1, and the second rod 22 is vertically rotatably connected to the first rod 21 through a bevel gear and is driven by the first rod 21; a window opening connecting rod 3, comprising a first connecting rod 31 and a second connecting rod 32, the first connecting rod 31 is rotatably connected to one end of the second connecting rod 32, and the other end is connected to the second rod 22, and is driven by the second rod 22.

[0021] Specifically, the first telescopic rod 11 is fixed to a predetermined position of the second telescopic rod 12 by the lock buckle 13 to meet the needs of different usage situations.

[0022] Some preferred / improved embodiments based on the above embodiments will be described below. Any one of the following embodiments may be selected, or multiple embodiments may be selected and combined.

[0023] Reference Figure 4 As shown, in order to make the lock buckle 13 open and close faster, the lock buckle 13 includes a latch 131, a spring 132, and a locking block 133. The locking block 133 is arranged at one end of the latch 131, and convex portions are formed on both sides of the other end of the latch 131. The spring 132 is used to apply a force to the latch 131 to always push toward the inside of the first telescopic rod 11. The second telescopic rod 12 is provided with a plurality of sockets that cooperate with the locking block 133.

[0024] Specifically, the lock buckle 13 further includes a buckle 134 , and the buckle 134 is substantially L-shaped. Such a configuration can provide a force point for actuating the buckle 134 .

[0025] More specifically, in order to make the buckle 134 rotate better, the buckle 134 is rotatably arranged on the protrusion.

[0026] Reference Figure 2 As shown, in order to prevent the hand crank arm from being damaged due to forced incorrect installation, lugs are formed at both ends of the outer side of the second telescopic rod 12, and the inner wall of the first telescopic rod 11 has a radially penetrating groove that cooperates with the lugs.

[0027] Specifically, in order to make the structure more compact, the first rod 21 and the second rod 22 are driven by bevel gears.

[0028] Preferably, the window opening connecting rod 3 is connected to the second rod 22 by bolts and nuts. With this arrangement, the degree of tightening can be freely adjusted and disassembly and assembly are convenient.

[0029] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present application, and the aforementioned embodiments are only used to illustrate the technical solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not drive the essence of the corresponding technical solutions away from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A labor-saving hand crank window opener. It is characterized in that include: The hand-crank structure comprises a first telescopic rod, a second telescopic rod and a lock, wherein a handle is provided at one end of the first telescopic rod and sleeved on the second telescopic rod, and the lock is symmetrically arranged at an end away from the handle, and is used to fix the first telescopic rod at different positions of the second telescopic rod; The transmission device comprises a first rod and a second rod, wherein the first rod is rotationally connected to the hand-cranked structure via a bevel gear and driven by the hand-cranked structure, and the second rod is vertically rotationally connected to the first rod via a bevel gear and driven by the first rod; The window opening connecting rod comprises a first connecting rod and a second connecting rod. The first connecting rod is rotatably connected to one end of the second connecting rod, and the other end is connected to the second rod and driven by the second rod.

2. A labor-saving hand crank window opener according to claim 1, It is characterized in that The lock buckle includes a latch, a spring, and a locking block. The locking block is arranged at one end of the latch. The other end of the latch is formed with convex portions on both sides. The spring is used to apply a force to the latch to always push the latch toward the inside of the first telescopic rod. The second telescopic rod is provided with a plurality of sockets that cooperate with the locking block.

3. A labor-saving hand crank window opener according to claim 2, It is characterized in that The lock buckle also includes a buckle, and the buckle shape is roughly L-shaped.

4. A labor-saving hand crank window opener according to claim 3, It is characterized in that The buckle is rotatably arranged on the convex portion.

5. The labor-saving hand crank window opener according to claim 1, It is characterized in that Lugs are formed at two ends of the outer side of the second telescopic rod, and a radially penetrating groove matching with the lugs is formed on the inner wall of the first telescopic rod.

6. A labor-saving hand crank window opener according to claim 1, It is characterized in that The first rod and the second rod are driven by bevel gears.

7. The labor-saving hand crank window opener according to claim 1, It is characterized in that The window opening connecting rod is connected to the second rod through bolts and nuts.

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