Door and window hinge capable of preventing inclination of door and window and adjustable in opening and closing angle

Abstract

The utility model relates to the technical field of door and window hinges, and discloses a door and window inclination prevention and opening and closing angle adjustable door and window hinge which comprises a lower hinge assembly and an upper hinge assembly which are installed between a window frame and a window sash. The lower hinge assembly and the upper hinge assembly are used in cooperation, the opening angle of the window sash can be adjusted to 180 degrees from 90 degrees, then the window sash can be attached to the wall face, the occupied indoor use space is reduced, the collision phenomenon between the window sash and the window sash is avoided, and the good practical effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window hinges, in particular to a door and window hinge which can prevent the door and window from tilting and has an adjustable opening and closing angle. Background Art

[0002] The sash of the casement window opens and closes along a certain horizontal direction, so it is called a casement window. The hinge of the casement window is installed on one side of the sash and connected to the window frame. According to whether it opens outward or inward, this type of window sash is divided into external casement windows and internal casement windows. The characteristics of this type of window sash are: simple structure, flexible opening, easy cleaning, and good sealing performance when closed. It is the most widely used type of window sash in civil buildings.

[0003] The utility model patent application document with publication number "CN216076751U" discloses a casement window hinge, which is mainly composed of a bottom groove, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a slider and a positioning block. The hinge of this technical solution rotates smoothly, and the third connecting rod plays a load-bearing role to prevent the first connecting rod from hanging in the air when the window sash is adjusted up and down.

[0004] The casement window hinge disclosed in the above document has the following defects: the maximum opening angle of the window sash is 86 degrees. After opening to the maximum angle, it will occupy a certain amount of indoor space. If a child runs indoors, he or she may collide with the window sash and endanger the child's life. The practicality is poor.

[0005] It can be seen from this that the existing casement window hinges do not have a structure for adjusting the opening and closing angles, and it is necessary to improve the existing deficiencies and provide a door and window hinge that can prevent the door and window from tilting and has an adjustable opening and closing angle. Utility Model Content

[0006] The purpose of the utility model is to provide a door and window hinge that can prevent doors and windows from tilting and has an adjustable opening and closing angle, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a door and window hinge that can prevent doors and windows from tilting and can adjust the opening and closing angles, comprising a lower hinge assembly and an upper hinge assembly installed between a window frame and a window sash, wherein the lower hinge assembly comprises a lower bottom plate, the outer surface of the lower bottom plate is hinged with a positioning swing arm and a lower movable plate, the upper surface of the positioning swing arm is hinged with a lower connecting plate, one end of the lower movable plate away from the lower bottom plate is hinged with a lower small rocker arm, the upper surface of the lower movable plate is hinged with a lower connecting plate, one end of the lower connecting plate and the lower small rocker arm are both hinged with a mounting plate, and the upper surface of the mounting plate is hinged with a lower connecting plate. An adjusting block is installed on the surface, a limiting hole is provided on the outer surface of the lower base plate, a through hole is provided on the outer surface of the positioning swing arm, a fastening bolt is connected to the inner thread of the through hole, one end of the fastening bolt is located inside the limiting hole, a first side plate is provided at one end of the lower base plate, mounting holes are provided on the outer surfaces of the first side plate and the lower base plate, a first through-hole nut is connected to the inner thread of the mounting hole, a first pressing plate is installed on the outer surface of the first through-hole nut, the upper hinge assembly includes an upper base plate, the outer surface of the upper base plate The upper swing arm and the upper movable plate are hinged, one end of the upper swing arm is hinged to the upper connecting plate, the outer surface of the upper connecting plate is hinged to the upper movable plate, the end of the upper movable plate away from the upper connecting plate is hinged to the upper small rocker arm, one end of the upper connecting plate and the upper small rocker arm are hinged to the support plate, one end of the upper base plate is provided with a second side plate, the outer surfaces of the second side plate and the upper base plate are provided with mounting holes, the inner thread of the mounting hole is connected to a second through-hole nut, the outer surface of the second through-hole nut is installed with a second pressing plate, and the support plate A short connecting rod and a shell are hinged on the outer surface of the short connecting rod, a shell is installed on the upper surface of the short connecting rod, and a sliding bar is slidably connected to the inside of the shell, an anti-warping block is installed on the outer surface of the support plate, a tail plug steel sheet is installed at one end of the anti-warping block, and a sliding bar is installed at the other end of the anti-warping block, an adjusting rivet is threadedly connected to one end of the second side plate, a tail plug block is installed at one end of the adjusting rivet, a tail plug steel sheet is cooperatively plugged into the inside of the tail plug block, an adjusting piece is installed on the outer surface of the sliding bar, and the adjusting piece is threadedly connected to the shell through an adjusting screw.

[0009] Furthermore, a limiting block is provided at one end of the lower base plate.

[0010] Furthermore, a cornering device latch is mounted on the outer surface of the tail plug steel sheet.

[0011] The utility model has the following beneficial effects:

[0012] The utility model can adjust the opening angle of the window sash from 90° to 180° through the coordinated use of the lower hinge assembly and the upper hinge assembly, so that the window sash can be fitted with the wall, reducing the occupied indoor space and avoiding collision with the window sash, thereby achieving better practical effect.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a structural schematic diagram of one side of the lower hinge assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the other side of the lower hinge assembly of the utility model;

[0018] Figure 4 This is a structural schematic diagram of one side of the upper hinge assembly of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the other side of the upper hinge assembly of the utility model;

[0020] Figure 6 This utility model Figure 4 A schematic diagram of the structure enlargement in the middle;

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] In the figure: 1, window frame; 2, window sash; 3, lower hinge assembly; 301, lower bottom plate; 302, positioning swing arm; 303, lower movable plate; 304, lower connecting plate; 305, lower small rocker arm; 306, mounting plate; 307, adjusting block; 308, fastening bolt; 309, first side plate; 3010, first through-hole nut; 3011, first pressure plate; 3012, limit block; 4, upper hinge assembly; 401, upper bottom plate; 402, upper swing arm arm; 403, upper movable plate; 404, upper connecting plate; 405, upper small rocker arm; 406, supporting plate; 407, second side plate; 408, second through-hole nut; 409, second pressure plate; 4010, short connecting rod; 4011, shell; 4012, slide bar; 4013, anti-warping block; 4014, tail plug steel sheet; 4015, adjusting rivet; 4016, tail plug block; 4017, adjusting piece; 4018, adjusting screw; 5, angler latch. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 - Figure 6As shown, the utility model is a door and window hinge that prevents doors and windows from tilting and has an adjustable opening and closing angle, including a lower hinge assembly 3 and an upper hinge assembly 4 installed between a window frame 1 and a window sash 2, the lower hinge assembly 3 including a lower bottom plate 301, the outer surface of the lower bottom plate 301 is hinged with a positioning swing arm 302 and a lower movable plate 303, the upper surface of the positioning swing arm 302 is hinged with a lower connecting plate 304, the end of the lower movable plate 303 away from the lower bottom plate 301 is hinged with a lower small rocker arm 305, the upper surface of the lower movable plate 303 is hinged with a lower connecting plate 304, one end of the lower connecting plate 304 and the lower small rocker arm 305 are both hinged with a mounting plate 306, and the upper surface of the mounting plate 306 is installed with The adjusting block 307, the outer surface of the lower base plate 301 is provided with a limiting hole, the outer surface of the positioning swing arm 302 is provided with a through hole, the internal thread of the through hole is connected with a fastening bolt 308, one end of the fastening bolt 308 is located inside the limiting hole, one end of the lower base plate 301 is provided with a first side plate 309, the outer surfaces of the first side plate 309 and the lower base plate 301 are both provided with mounting holes, the internal thread of the mounting hole is connected with a first through hole nut 3010, the outer surface of the first through hole nut 3010 is installed with a first pressing plate 3011, the upper hinge assembly 4 includes an upper base plate 401, the outer surface of the upper base plate 401 is hinged with an upper swing arm 402 and an upper movable plate 403, and the upper swing arm One end of the arm 402 is hinged with an upper connecting plate 404, the outer surface of the upper connecting plate 404 is hinged with an upper movable plate 403, the end of the upper movable plate 403 away from the upper connecting plate 404 is hinged with an upper small rocker arm 405, one end of the upper connecting plate 404 and the upper small rocker arm 405 are both hinged with a support plate 406, one end of the upper bottom plate 401 is provided with a second side plate 407, the outer surfaces of the second side plate 407 and the upper bottom plate 401 are both provided with mounting holes, the inner thread of the mounting hole is connected with a second through-hole nut 408, the outer surface of the second through-hole nut 408 is installed with a second pressing plate 409, the outer surface of the support plate 406 is hinged with a short connecting rod 4010 and a shell 4011, and the short connecting rod 4010 is hinged with a shell 4011. A shell 4011 is installed on the upper surface of 010, and a slide bar 4012 is slidably connected inside the shell 4011, an anti-warping block 4013 is installed on the outer surface of the support plate 406, a tail plug steel sheet 4014 is installed on one end of the anti-warping block 4013, and the slide bar 4012 is installed on the other end of the anti-warping block 4013, an adjusting rivet 4015 is threadedly connected to one end of the second side plate 407, a tail plug block 4016 is installed on one end of the adjusting rivet 4015, and the tail plug steel sheet 4014 is plugged into the interior of the tail plug block 4016, an adjusting piece 4017 is installed on the outer surface of the slide bar 4012, and the adjusting piece 4017 is threadedly connected to the shell 4011 through an adjusting screw 4018.

[0025] A limiting block 3012 is provided at one end of the lower base plate 301 .

[0026] The outer surface of the tail plug steel sheet 4014 is fitted with a cornering device latch 5 .

[0027] When in use, first place the lower base plate 301, the first side plate 309, the upper base plate 401 and the second side plate 407 in the mounting groove of the window frame 1 respectively, then take out the tool, place the tool in the first through-hole nut 3010 and the second through-hole nut 408, and rotate it 90° clockwise to make the first through-hole nut 3010 and the second through-hole nut 408 rotate in the mounting hole, thereby making the first pressure plate 3011 and the second pressure plate 409 rotate in the mounting groove, so that the first pressure plate 3011 and the second pressure plate 409 are clamped in the mounting groove of the window frame 1, so that the lower base plate 301, the first side plate 309, the upper base plate 401 and the second side plate 407 are fixedly installed with the window frame 1, and then the angler latch 5 and the mounting plate 306 are fixedly installed with the window sash 2 by bolts, and the window sash 2 is opened by pulling the handle outward. When the window sash 2 needs to be opened 180°, the fastening bolt 308 is moved from the positioning swing small by using a tool. The sash 2 is then taken out of the through hole formed in the arm 302, so that the lower base plate 301 cancels the restriction on the positioning swing arm 302, and then the window sash 2 continues to be pulled outward, so that the mounting plate 306 drives the lower movable plate 303 to rotate through the lower small rocker arm 305, so that the lower movable plate 303 moves axially with the mounting hole close to one end of the lower base plate 301 as the center, and at the same time, the angler latch 5 drives the slide bar 4012, the anti-tilt block 4013, the tail plug steel sheet 4014 and the adjusting piece 4017 to slide outward in the shell 4011. When the mounting plate 306 and the lower base plate 301 are located on the same horizontal plane, the opening angle of the window sash 2 is 180°. Through the cooperation between the lower hinge assembly 3 and the upper hinge assembly 4, the opening angle of the window sash 2 can be adjusted from 90° to 180°, so that the window sash 2 can be fitted with the wall, reducing the indoor use space and avoiding collision with the window sash 2, thereby achieving a better practical effect.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A door and window hinge that prevents door and window tilting and has an adjustable opening and closing angle, comprising a lower hinge assembly (3) and an upper hinge assembly (4) installed between a window frame (1) and a window sash (2), characterized in that: The lower hinge assembly (3) comprises a lower base plate (301), the outer surface of the lower base plate (301) is hinged with a positioning swing arm (302) and a lower movable plate (303), the upper surface of the positioning swing arm (302) is hinged with a lower connecting plate (304), one end of the lower movable plate (303) away from the lower base plate (301) is hinged with a lower small rocker arm (305), the upper surface of the lower movable plate (303) is hinged with a lower connecting plate (304), one end of the lower connecting plate (304) and the lower small rocker arm (305) are both hinged with a mounting plate (306), and an adjusting block (307) is mounted on the upper surface of the mounting plate (306); A limiting hole is provided on the outer surface of the lower base plate (301), a through hole is provided on the outer surface of the positioning swing arm (302), a fastening bolt (308) is connected to the inner thread of the through hole, and one end of the fastening bolt (308) is located inside the limiting hole; A first side plate (309) is provided at one end of the lower base plate (301); the outer surfaces of the first side plate (309) and the lower base plate (301) are both provided with mounting holes; the inner threads of the mounting holes are connected with first through-hole nuts (3010); and the outer surface of the first through-hole nuts (3010) is provided with a first pressing plate (3011); The upper hinge assembly (4) comprises an upper base plate (401), an upper swing arm (402) and an upper movable plate (403) being hingedly connected to the outer surface of the upper base plate (401), an upper connecting plate (404) being hingedly connected to one end of the upper swing arm (402), an upper movable plate (403) being hingedly connected to the outer surface of the upper connecting plate (404), an upper small rocker arm (405) being hingedly connected to one end of the upper movable plate (403) away from the upper connecting plate (404), and a support plate (406) being hingedly connected to one end of each of the upper connecting plate (404) and the upper small rocker arm (405); A second side plate (407) is provided at one end of the upper base plate (401); the outer surfaces of the second side plate (407) and the upper base plate (401) are both provided with mounting holes; the inner threads of the mounting holes are connected with second through-hole nuts (408); and the outer surface of the second through-hole nuts (408) is provided with a second pressing plate (409); The outer surface of the support plate (406) is hinged with a short connecting rod (4010) and a shell (4011); the upper surface of the short connecting rod (4010) is installed with the shell (4011); the interior of the shell (4011) is slidably connected with a slide bar (4012); the outer surface of the support plate (406) is installed with an anti-warping block (4013); one end of the anti-warping block (4013) is installed with a tail plug steel sheet (4014); and the other end of the anti-warping block (4013) is installed with a slide bar (4012); An adjusting rivet (4015) is threadedly connected to one end of the second side plate (407), a tail plug block (4016) is installed at one end of the adjusting rivet (4015), and a tail plug steel sheet (4014) is plugged into the interior of the tail plug block (4016); An adjusting member (4017) is installed on the outer surface of the slide bar (4012), and the adjusting member (4017) is threadedly connected to the housing (4011) via an adjusting screw (4018).

2. The door and window hinge for preventing door and window from tilting and having an adjustable opening and closing angle according to claim 1, characterized in that: A limiting block (3012) is provided at one end of the lower base plate (301).

3. The hinge for doors and windows that can prevent tilting and can adjust the opening and closing angles according to claim 1, characterized in that: The outer surface of the tail plug steel sheet (4014) is fitted with a cornering device latch (5).

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