Lever handle of casement window

Abstract

The utility model relates to the technical field of door and window handles, in particular to a casement window handle which comprises a handle body and a base, the handle body is arranged at the eccentric position of the front face of the base, a first gear and a second gear are arranged on the two sides of the interior of the base respectively, the first gear and the second gear are meshed with each other, and the first gear and the second gear are meshed with each other. The handle is fixedly connected to the first gear, a square hole is formed in the end face of the second gear, a square shaft is inserted into the square hole, the handle is arranged at the eccentric position of the base and connected with the first gear, the second gear is connected with the square shaft, and the first gear is in transmission with the second gear. The square shaft is driven to rotate, the handle and the rotating axis of the handle deviate from the window frame, hands of people are prevented from being clamped, and meanwhile the width of an existing window sash side profile can be further reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of door and window handles, and in particular to a casement window handle. Background Technology

[0002] Door and window handles are an important component of doors and windows. They are devices installed on doors and windows to secure them after opening and closing. When closing a door or window, rotating the handle engages other accessories, allowing the door or window to be firmly locked to the fixed frame. Referring to the utility model patent (publication number: CN210164340U): "A Screen Window Handle," it can be seen that current handles use the rotation of a square shaft to drive other accessories. Generally, the square shaft is located in the center of the base, and the handle as a whole is installed in the middle of the width of the window profile. Due to the limitations of the square shaft installation center position, in order to prevent the handle from being too close to the window frame and causing easy pinching of the hand, the current window profiles must leave enough width to install the handle. That is, a sufficient distance must be left between the handle and the window frame to prevent people from pinching their hands when turning the handle. This makes it difficult to further reduce the width of the existing window profiles. Some handles now use a skewed handle design to prevent pinching of the hand, so that the handle is away from the window frame. However, this design is not reasonable. The rotation axis of the skewed handle is still at the center of the base. When rotated 180 degrees, the handle is even closer to the window frame. Utility Model Content

[0003] The present invention provides a casement window handle, which allows the handle to be installed at an off-center position on the base and rotate at the off-center position.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a casement window handle, comprising a handle and a base, wherein the handle is disposed at an eccentric position on the front of the base, and a first gear and a second gear are respectively disposed on both sides inside the base, wherein the first gear and the second gear mesh with each other, and the meshing point corresponds to the center in the width direction of the base, the handle is fixedly connected to the first gear, and the end face of the second gear is provided with a square hole, into which a square shaft is inserted.

[0005] Furthermore, the base is provided with two fan rings, and the first gear and the second gear are respectively disposed in the two fan rings. Both fan rings have openings, and the openings of the two fan rings are connected. The meshing point of the first gear and the second gear corresponds to the opening.

[0006] Furthermore, a plum blossom-shaped column is provided at one end of the first gear, and four positioning grooves are distributed in a ring around the outer side of the plum blossom-shaped column. Two positioning components that cooperate with the positioning grooves are provided in the base, and the two positioning components are respectively located above and below the plum blossom-shaped column.

[0007] Furthermore, a seat cover is provided on the front of the base, and a round hole is provided at one end of the handle for rotatable connection to the seat cover.

[0008] Furthermore, the base has a cover on its front side, the cover has a through hole that fits onto the base sleeve, and the cover is magnetically attached to the base.

[0009] Compared with the prior art, the beneficial effects of this utility model are: by setting the handle at the eccentric part of the base and connecting it with the first gear, and the second gear connecting it with the square shaft, the first gear drives the second gear to rotate, thereby making the handle and the rotation axis of the handle deviate from the window frame, thus preventing people from pinching their hands, and at the same time, the width of the current window sash side profile can be further reduced. Attached Figure Description

[0010] Figure 1 This is a front view of the present invention.

[0011] Figure 2 This is a perspective view of the present invention.

[0012] Figure 3 This is an exploded view of the present invention.

[0013] Figure 4 This is a perspective view of the base in this utility model.

[0014] Figure 5 This is a schematic diagram of the back of this utility model.

[0015] Figure 6 This is a perspective view of the first gear in this utility model.

[0016] Figure 7 This is a schematic diagram of an existing angled handle.

[0017] In the diagram: handle 1, base 2, square shaft 3, first gear 11, second gear 12, fan ring 20, seat sleeve 21, face cover 22, square hole 30, plum blossom column 110, positioning component 112, positioning groove 114, opening 200. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] As attached Figure 1-6 As shown, this utility model discloses a casement window handle, comprising a handle 1 and a base 2. The handle 1 is disposed eccentrically on the front of the base 2. A first gear 11 and a second gear 12 are respectively disposed on both sides inside the base 2. Figure 5 The first gear 11 and the second gear 12 are disposed on the left and right sides inside the base 2. The first gear 11 and the second gear 12 mesh with each other, and the meshing point corresponds to the center of the width direction of the base 2. The handle 1 is fixedly connected to the first gear 11. The end face of the second gear 12 is provided with a square hole 30, and a square shaft 3 is inserted into the square hole 30.

[0020] This utility model discloses a casement window handle. The handle is installed on a casement window, which includes a window frame and a window sash. A locking device is provided on the side profile of the window frame. The handle is installed on the front of the side profile of the window sash. During installation, a central hole is formed at the center of the front of the window sash side profile along its width direction. A square shaft 3 passes through this hole and connects to the fittings; that is, the left side of the base 2 corresponds to the central hole. Preferably, the center of the base 2 corresponds to the center of the window sash side profile. A hole for the square shaft 3 is formed at the center of the front of the window sash side profile, near the side profile of the window frame. This ensures that the base 2 is positioned at the center of the window sash side profile, resulting in a more harmonious appearance. Furthermore, the proximity of the second gear 12 and the square shaft 3 to the window frame does not affect rotation. Regardless of the method... During installation, both the first gear 11 and the handle 1 are positioned off-center from the window frame side profile. By placing the handle 1 at the eccentric position of the base 2 and connecting it to the first gear 11, and connecting the second gear 12 to the square shaft 3, the first gear 11 drives the second gear 12, thereby rotating the square shaft 3. This causes the handle 1 and its rotation axis to be off-center from the window frame. Simultaneously, the second gear 12 is positioned to provide sufficient space for people to grip the handle 1. In the installed state, the second gear 12 is positioned between the window frame side profile and the handle 1, thus separating the window frame side profile and the handle 1, providing space for people and preventing them from pinching their hands. At the same time, the width of the current window sash side profile can be further reduced.

[0021] In this embodiment, the base 2 is provided with two fan rings 20. The first gear 11 and the second gear 12 are respectively disposed in the two fan rings 20. Both fan rings 20 have openings 200, and the openings 200 of the two fan rings 20 are connected. The meshing part of the first gear 11 and the second gear 12 corresponds to the opening 200. The two fan rings 20 are used for positioning and installing the first gear 11 and the second gear 12 on the base 2. The first gear 11 and the second gear 12 are directly placed into the corresponding fan rings 20. The base 2 and the front of the window sash profile are used to seal the first gear 11 and the second gear 12 on both sides to prevent them from falling off. A back plate can also be provided on the back of the base 2. The base 2 and the back plate are used to clamp the first gear 11 and the second gear 12 to prevent them from falling off. It should be noted that the openings 200 of the two fan rings 20 are close to each other and connected. The connected openings 200 are actually channels for the first gear 11 and the second gear 12 to mesh and connect.

[0022] In this embodiment, a plum blossom column 110 is provided at one end of the first gear 11. Four positioning grooves 114 are distributed in a ring on the outer side of the plum blossom column 110. Two positioning components 112 that cooperate with the positioning grooves 114 are provided in the base 2. The two positioning components 112 are located above and below the plum blossom column 110, respectively. The positioning component 112 includes a spring and a positioning bead. The base 2 is provided with mounting grooves on the upper and lower surfaces of the plum blossom column 110. The positioning component 112 is set in the mounting groove. One end of the spring abuts against the mounting groove and the other end abuts against the positioning bead, so that the positioning bead abuts against each positioning groove 114 to achieve positioning. Specifically, the four positioning grooves 114 are distributed in a ring. The included angle between the adjacent positioning grooves 114 and the center of the plum blossom column 110 is 90 degrees. It should be noted that the existing casement windows have many functions. In addition to the basic outward / inward opening, they can also achieve inward tilting, etc. The multiple positioning grooves 114 are mainly used to correspond to a state for each rotation of the handle.

[0023] In this embodiment, a seat sleeve 21 is provided on the front of the base 2, and a round hole is provided at one end of the handle 1 for rotatable connection to the seat sleeve 21. A face cover 22 is provided on the front of the base 2, and the face cover 22 has a through hole that fits onto the seat sleeve 21. The face cover 22 is magnetically attached to the base 2. The base 2 has a connection hole. This is an existing installation structure and will not be described in detail. It is used to drive screws into the window sash side profile. The base 2 structure uses the face cover 22 to cover the connection hole, etc. The face cover 22 is placed between the handle 1 and the base 2, and magnets are provided on the facing sides of the face cover 22 and the base 2. The magnets attract each other to fix the face cover 22.

[0024] The above embodiments are preferred embodiments of this utility model. All structures similar to this utility model and equivalent changes thereof should fall within the protection scope of this utility model.

Claims

1. A casement window handle, comprising a handle and a base, characterized in that: The handle is located eccentrically on the front of the base. The base has two fan rings inside, and a first gear and a second gear are respectively installed inside the two fan rings. The first gear and the second gear are respectively installed on both sides of the base. The first gear and the second gear mesh with each other. Both fan rings have openings, and the openings of the two fan rings are connected. The meshing point of the first gear and the second gear corresponds to the opening and the meshing point corresponds to the center in the width direction of the base. The handle is fixedly connected to the first gear. The end face of the second gear has a square hole, and a square shaft is inserted into the square hole.

2. A casement window handle according to claim 1, characterized in that: The first gear has a plum blossom-shaped column at one end, and four positioning grooves are distributed in a ring around the outside of the plum blossom-shaped column. The base has two positioning components that cooperate with the positioning grooves, and the two positioning components are located above and below the plum blossom-shaped column, respectively.

3. A casement window handle according to claim 1, characterized in that: The base has a seat cover on its front side, and one end of the handle has a round hole that is rotatably connected to the seat cover.

4. A casement window handle according to claim 3, characterized in that: The base has a cover on its front side, the cover has a through hole that fits into the base, and the cover is magnetically attached to the base.

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