Limiting structure for casement window hinge

Abstract

The limiting structure comprises a limiting strip and a plurality of adjusting blocks which are detachably arranged at the first end of the limiting strip, the limiting strip is matched with a sliding way of the casement window hinge, a plurality of fixing holes are formed in the limiting strip in the length direction of the limiting strip, a trapezoidal groove is formed in the bottom face of the first end of the limiting strip, and the adjusting blocks are detachably arranged at the first end of the limiting strip. The trapezoidal groove is communicated with the end surface of the first end of the limiting strip to form an opening; and the adjusting block is detachably connected with the trapezoidal groove. The limiting strip and the adjusting block can be combined and then fixed in the sliding way of the casement window hinge to achieve limiting, and the limiting strip can be applied to an existing casement window hinge, and is simple in structure and convenient to install. The adjusting block and the limiting strip are assembled through the trapezoidal groove and the trapezoidal block arranged on the bottom face, the adjusting block cannot be detached from the top face after the limiting block is fixed, and using is safe.

Description

Technical Field

[0001] The utility model relates to the technical field of casement window hinges, in particular to a limiting structure for casement window hinges. Background Art

[0002] Casement windows have a simple structure, are easy to manufacture and install, have a large opening area, and provide good air collection and ventilation effects. They have been widely used in modern buildings.

[0003] Casement windows are opened and closed using a four-link hinge mechanism. To control the opening angle of a casement window, Chinese utility model patent CN211647728U discloses a casement window hinge with a position-limiting function. The bottom of the slide is equipped with multiple equally spaced position-limiting grooves, within which an adjustable slider slides. The slider comprises a slider body, a V-shaped button, a pin, a return spring, and a position-limiting block. To open the window to the desired position, the upward end of the V-shaped button is pressed, while the other end acts as a downward pressure. The upward end of the V-shaped button is released, and the return spring forces the downward pressure block into the position-limiting groove, securing the adjustable slider. Due to the fixed position of the adjustable slider, the window cannot move, effectively limiting its position. This implementation is a completely new design with a relatively complex structure, making it unsuitable for already installed traditional casement window hinges. Utility Model Content

[0004] In view of the above-mentioned defects, the technical problem to be solved by the present invention is to provide a limiting structure for a casement window hinge, so as to solve the problem that the existing technology cannot be applied to the traditional casement window hinge.

[0005] To this end, the present application provides a limiting structure for a casement window hinge, comprising:

[0006] A limit strip adapted to fit the slideway of the casement window hinge, the limit strip being provided with a plurality of fixing holes along its length, a trapezoidal groove being provided on the bottom surface of the first end of the limit strip, the trapezoidal groove being in communication with the end surface of the first end of the limit strip to form an opening;

[0007] The adjusting block is detachably connected to the trapezoidal groove.

[0008] Based on the above technical solution, the limit bar and adjustment block can be combined and fixed within the slideway of the casement window hinge to achieve position limiting. This can be applied to existing casement window hinges, with a simple structure and easy installation. The adjustment block and limit bar are assembled using a trapezoidal groove and trapezoidal block provided on the bottom surface. Once the limit block is fixed, the adjustment block cannot be removed from the top surface, making it safe to use.

[0009] In the above technical solution, preferably, the first end of the stop bar has a protrusion, the top surface of the protrusion protrudes from the top surface of the stop bar, the thickness of the protrusion is less than the depth of the slideway, and the trapezoidal groove is provided on the bottom surface of the protrusion. This implementation improves the strength of the abutment end while not affecting window closing.

[0010] In the above technical solution, preferably, the adjustment block includes:

[0011] An intermediate adjustment block includes an intermediate stopper, a bottom surface of a first end of the intermediate stopper is provided with an intermediate trapezoidal groove, an end surface of a second end of the intermediate stopper is provided with an intermediate connecting block, and the intermediate connecting block is adapted to the trapezoidal groove;

[0012] The terminal adjustment block comprises a terminal stopper, wherein the end surface of the second end of the terminal stopper is provided with a terminal connection block, and the terminal connection block is adapted to the middle trapezoidal groove.

[0013] By combining adjustment blocks of different widths with fixing holes, the opening angle of the casement window can be controlled more accurately.

[0014] In the above technical solution, preferably, the multiple fixing holes are arranged at equal intervals.

[0015] In the above technical solution, preferably, the side surface of the protrusion facing the second end of the limiting strip is a concave arc surface.

[0016] As can be seen from the above technical solutions, the limit structure for casement window hinges provided by the present invention solves the problem that the existing technology cannot be used for existing casement windows. Compared with the existing technology, the present invention has the following beneficial effects:

[0017] The first end of the limit bar is detachably fitted with several adjustment blocks. The limit bar mates with the slideway of the casement window hinge and is secured within the slideway via set screws to achieve position control. This structure, applicable to existing casement window hinges, offers a simple construction and easy installation. The adjustment blocks and limit bar are assembled using trapezoidal grooves and blocks on the bottom surface. Once the limit blocks are secured, they cannot be removed from the top, ensuring safe use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction and description of the drawings required for the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are only some of the embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0019] Figure 1This is a schematic diagram of a limiting structure for a casement window hinge provided by the present invention after installation;

[0020] Figure 2 for Figure 1 The diagram of the assembly of the limiting structure for the casement window hinge is shown;

[0021] Figure 3 This is a schematic diagram of the exploded structure of a limiting structure for a casement window hinge provided by the present invention;

[0022] Figure 4 Schematic diagram of the limit strip in the present utility model;

[0023] Figure 5 for Figure 4 A schematic diagram of the limit strip shown in the upward direction;

[0024] Figure 6 This is a schematic diagram of the intermediate adjustment block of the present utility model;

[0025] Figure 7 for Figure 6 Schematic diagram of the middle adjustment block when looking upwards

[0026] Figure 8 This is a schematic diagram of the terminal adjustment block of the present utility model;

[0027] Figure 9 for Figure 8 Schematic diagram of the terminal adjustment block shown looking upward.

[0028] Figures 1-9 In the figure, the corresponding relationship between the parts is as follows:

[0029] Limiting strip 10, adjusting block 20, window hinge 30, fixing screw 40;

[0030] Fixing hole 11, protrusion 12, trapezoidal groove 13;

[0031] Intermediate adjustment block 21, terminal adjustment block 22;

[0032] Middle stopper 211, middle trapezoidal groove 212, middle connecting block 213;

[0033] Terminal stopper 221, terminal connection block 222;

[0034] Slideway 31 and slider 32. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0036] To control the opening angle of a casement window, the existing technology incorporates multiple equally spaced limit slots at the bottom of the casement window hinge's chute. An adjustable slider slides within the chute, comprising a V-shaped button. Positioning is achieved by inserting a limit block at the downwardly pressed end of the V-shaped button into the limit slot. However, this solution is a novel design and cannot be applied to conventional casement window hinges.

[0037] The limiting structure for the casement window hinge provided in the present application realizes limiting by placing an adjustable limiting block in the sliding groove of the casement window hinge. It can be used on the installed casement window hinge and has a simple structure and is easy to use.

[0038] In order to provide a clearer explanation and description of the technical solution and implementation of the present invention, several preferred specific embodiments for implementing the technical solution of the present invention are introduced below.

[0039] It should be noted that the directional words such as "inside, outside", "front, back" and "left, right" in this article are expressed based on the product usage status. Obviously, the use of the corresponding directional words does not constitute a limitation on the scope of protection of this scheme.

[0040] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a limiting structure for a casement window hinge provided by the present invention after installation. Figure 2 for Figure 1 The diagram of the assembly of the limiting structure for the casement window hinge is shown in FIG. Figure 3 The utility model provides a schematic diagram of the exploded structure of a limiting structure for a casement window hinge.

[0041] like Figure 1 、 Figure 2 、 Figure 3 As shown, the present invention provides a position-limiting structure for a casement window hinge, comprising a position-limiting bar 10 and a plurality of adjustment blocks 20 detachably mounted on a first end of the position-limiting bar 10. The position-limiting bar 10 is adapted to fit within a slideway 31 of a casement window hinge 30 and is secured within the slideway 31 via fixing screws 40. The position-limiting bar 10 abuts against a slider 32 within the slideway 31 to achieve position limiting. The other end of the position-limiting bar 10 is referred to as the second end.

[0042] See also Figure 3 、 Figure 4 、 Figure 5 The limiting strip 10 is in the shape of a long strip as a whole, and is provided with a plurality of fixing holes 11 along its length direction, and the plurality of fixing holes 11 can be arranged at equal intervals. The fixing holes 11 are arranged in the thickness direction of the limiting strip 10. The first end of the limiting strip 10 has a protrusion 12, and the top surface of the protrusion 12 protrudes from the top surface of the limiting strip 10. The side surface of the protrusion 12 facing the second end is a concave arc surface to facilitate the installation of the fixing screw 40. A trapezoidal groove 13 is provided on the bottom surface of the protrusion 12, and the trapezoidal groove 13 is connected to the end face of the protrusion 12 to form an opening, which serves as the long bottom side of the trapezoidal groove 13. The thickness of the protrusion 12 is less than the depth of the slide 31, so this solution will not affect the closing of the window.

[0043] The adjustment block 20 includes a middle adjustment block 21 and a terminal adjustment block 22, which are detachably mounted on the end surface of the protrusion 12. The middle adjustment block 21 and the terminal adjustment block 22 have different widths, for example, 7.5 mm and 5 mm, and are used to adjust the overall length of the limit strip 10 and, therefore, the opening angle of the casement window.

[0044] like Figure 6 、 Figure 7 As shown, the intermediate adjustment block 21 includes an intermediate stopper 211, an intermediate trapezoidal groove 212 is provided on the bottom surface of the first end of the intermediate stopper 211, and an intermediate connecting block 213 is provided on the end surface of the second end of the intermediate stopper 211. The intermediate connecting block 213 is adapted to the trapezoidal groove 13, and the intermediate adjustment block 21 is assembled at the first end of the limit bar 10 through the intermediate connecting block 213 and the trapezoidal groove 13.

[0045] like Figure 8 、 Figure 9 As shown, the terminal adjustment block 22 includes a terminal stop block 221, and a terminal connecting block 222 is provided on the end face of the second end of the terminal stop block 221. The terminal connecting block 222 is adapted to the intermediate trapezoidal groove 212, and the intermediate adjustment block 21 is assembled at the first end of the limit strip 10 through the terminal connecting block 222 and the intermediate trapezoidal groove 212.

[0046] In the present application, the middle adjustment block 21 and the terminal adjustment block 22 are both installed and disassembled from the bottom surface, which can prevent the middle adjustment block 21 and the terminal adjustment block 22 from falling out during use, thereby improving safety.

[0047] The present invention allows the position limiting strip 10 to be fixed within the slideway 31 of the casement window hinge 30 to achieve position limiting. This design can be applied to existing casement window hinges, resulting in a simple structure and easy installation. In particular, the overall length of the position limiting strip 10 can be adjusted by combining the intermediate adjustment block 21 and the terminal adjustment block 22, thereby adjusting the opening angle of the casement window. This design is convenient to use.

[0048] Based on the description of the above specific embodiments, the limiting structure for the casement window hinge provided by the present invention has the following advantages compared with the prior art:

[0049] First, the proposed solution combines a limit bar with an adjustment block, which is then fixed within the slideway of the casement window hinge to achieve position limiting. This solution can be applied to existing casement window hinges, boasting a simple structure and easy installation. The adjustment block can be adjusted in length by combining the intermediate and terminal adjustment blocks, thereby adjusting the opening angle of the casement window, making it easy to use.

[0050] Second, in the present application, the adjustment block and the limit bar are assembled using a trapezoidal groove and a trapezoidal block provided on the bottom surface. After the limit block is fixed, the adjustment block cannot be removed from the top surface, and is safe to use.

[0051] Third, in the present application, the thick bottom of the protrusion on the limit strip is lower than the depth of the slide, which does not affect the closing of the window and is easy to use.

[0052] Finally, it should be noted that the terms "comprise," "include," or any other variations thereof, as used herein, are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0053] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any structural changes with the same or similar technical solutions as the present invention fall within the scope of protection of the present invention.

Claims

1. A limiting structure for a casement window hinge, characterized in that: include: A limit strip adapted to fit the slideway of the casement window hinge, the limit strip being provided with a plurality of fixing holes along its length, a trapezoidal groove being provided on the bottom surface of the first end of the limit strip, the trapezoidal groove being in communication with the end surface of the first end of the limit strip to form an opening; The adjusting block is detachably connected to the trapezoidal groove.

2. The limiting structure for a casement window hinge according to claim 1, characterized in that: The first end of the limiting strip has a protrusion, the top surface of the protrusion protrudes from the top surface of the limiting strip, the thickness of the protrusion is smaller than the depth of the slideway, and the trapezoidal groove is arranged on the bottom surface of the protrusion.

3. The limiting structure for a casement window hinge according to claim 1, characterized in that: The adjustment block includes: An intermediate adjustment block includes an intermediate stopper, a bottom surface of a first end of the intermediate stopper is provided with an intermediate trapezoidal groove, an end surface of a second end of the intermediate stopper is provided with an intermediate connecting block, and the intermediate connecting block is adapted to the trapezoidal groove; The terminal adjustment block comprises a terminal stopper, wherein the end surface of the second end of the terminal stopper is provided with a terminal connection block, and the terminal connection block is adapted to the middle trapezoidal groove.

4. The limiting structure for a casement window hinge according to claim 1, characterized in that: The multiple fixing holes are arranged at equal intervals.

5. The limiting structure for a casement window hinge according to claim 2, characterized in that: The side surface of the protrusion facing the second end of the limiting strip is a concave arc surface.

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