CN216588190U - Locking hinge and door and window - Google Patents

Abstract

The utility model relates to a locking hinge and a door and window, the locking hinge comprises: the device comprises a sliding rod, a first connecting rod, a second connecting rod, a third connecting rod and a supporting arm; the first connecting rod and the third connecting rod are arranged between the sliding rod and the supporting arm, the same ends of the first connecting rod and the third connecting rod are rotatably connected with the supporting arm, and the other ends of the first connecting rod and the third connecting rod are rotatably connected with the sliding rod; the second connecting rod is arranged between the sliding rod and the first connecting rod, one end of the second connecting rod is rotatably connected with the first connecting rod, the other end of the second connecting rod is slidably connected with the sliding rod, and one end of the first connecting rod connected with the sliding rod is located between one end of the third connecting rod connected with the sliding rod and one end of the second connecting rod connected with the sliding rod. The above-mentioned scheme that this application provided, install the trailing arm on the window, install the window frame with the slide bar simultaneously on, when the trailing arm is in the position of foling, the trailing arm is for the locking of second connecting rod to make whole hinge have the locking function when the closure, and then can improve the sealing performance of window.

Description

Locking hinges and doors and windows

technical field

The utility model relates to the technical field of accessories for curtain walls, in particular to a locking hinge and a door and window.

Background technique

The curtain wall is the outer wall of the building. It is not load-bearing and hangs like a curtain, so it is also called "curtain wall". It is a lightweight wall with decorative effects commonly used in modern large and high-rise buildings. Opening windows will be set in the curtain wall for ventilation and lighting.

At present, most of the curtain walls on the market use three-link hinges, but the three-link hinges do not have a locking structure due to the structural characteristics of the curtain wall, so the curtain wall windows with three-link hinges will have poor sealing performance after long-term use. , thus causing inconvenience to users.

Utility model content

Based on this, it is necessary to provide a locking hinge and a door and window for the problem that the existing three-link hinge for curtain wall has no locking structure.

The utility model provides a locking hinge, comprising: a sliding rod, a first connecting rod, a second connecting rod, a third connecting rod and a support arm;

The first link and the third link are arranged between the sliding rod and the support arm, and the same ends of the first link and the third link both rotate with the support arm connected, and the other ends of the first link and the third link are both rotatably connected to the sliding rod;

The second connecting rod is arranged between the sliding rod and the first connecting rod, one end of the second connecting rod is rotatably connected with the first connecting rod, and the other end is slidably connected with the sliding rod, One end connected with the first link and the sliding rod is located between the end connected with the third link and the sliding rod and the end connected with the second link and the sliding rod;

The support arm has a first position closed relative to the sliding rod and a second open position, when the support arm is in the first position, the support arm is locked relative to the second link, and when the support arm is in the first position, the support arm is locked relative to the second link. When the carrier arm is in the second position, the carrier arm is opened relative to the second link.

For the above-mentioned locking hinge, the support arm is installed on the window, and the sliding rod is installed on the window frame. When the support arm is in the closed position, the support arm is locked relative to the second link, so that the integral hinge has a Locking function, which in turn can improve the sealing performance of the window.

In one embodiment, the sliding rod includes a horizontal rod and a vertical rod, one end of the horizontal rod is vertically connected with the vertical rod; the second link includes a horizontal movable rod and a vertical movable rod, One end of the horizontal movable rod is vertically connected with the vertical movable rod; the horizontal connecting arm on the support arm is provided with a protrusion;

The same ends of the first link and the third link are both connected to the horizontal connecting arm, and the other ends of the first link and the third link are both rotatably connected to the horizontal rod; One end of the horizontal movable rod is rotatably connected with the first link, the other end is slidably connected with the horizontal rod, and the vertical movable rod and the vertical rod are located on the same side of the horizontal movable rod;

When the carrier arm is in the first position, the protrusion is locked relative to the vertically movable rod, and when the carrier arm is in the second position, the protrusion is separated from the vertically movable rod.

In one of the embodiments, the vertical movable rod includes a first limit plate and a second limit plate, and the first limit plate and the second limit plate are arranged on the same side of the horizontal movable rod. On the side, a bending portion is provided between the first limit plate and the second limit plate;

When the support arm is in the first position, the protrusion is located in the bent portion, and when the support arm is in the second position, the protrusion is separated from the bent portion.

In one embodiment, one end of the protrusion facing the vertical movable rod is a triangular structure, and the triangular structure is matched with the bending portion.

In one embodiment, an escape opening is provided on one end of the vertical rod facing the horizontal rod.

In one of the embodiments, it further includes a first rivet and a second rivet, one end of the horizontal rod facing the vertical rod is provided with a chute along the length direction of the horizontal rod, and the first rivet goes from bottom to After passing through the chute, it is connected to one end of the horizontal movable rod, the first rivet can move in the chute, and the second rivet passes through the horizontal movable rod from bottom to top. The other end is connected with the first connecting rod.

In one of the embodiments, the end of the horizontal movable rod facing the vertical movable rod is provided with a sixth through hole, and the end of the horizontal movable rod away from the vertical movable rod is provided with a seventh through hole, so The first connecting rod is provided with a fourth through hole;

The first rivet passes through the chute from bottom to top and then extends into the sixth through hole, and the second rivet passes through the seventh through hole from bottom to top and then extends into the sixth through hole in the fourth through hole.

In one of the embodiments, it further includes a third rivet and a fifth rivet, one end of the first link facing the vertically movable rod is provided with a third through hole, and the other end of the first link is provided with a third through hole. a fifth through hole, the fourth through hole is located between the third through hole and the fifth through hole, the horizontal connecting arm is provided with a tenth through hole, and the horizontal rod is provided with a first through hole through hole;

The third rivet passes through the fifth through hole from top to bottom and then extends into the first through hole, and the fifth rivet passes through the tenth through hole from top to bottom and then extends into the first through hole. in the third through hole.

In one embodiment, a fourth rivet and a sixth rivet are further included, a second through hole is provided at one end of the horizontal rod away from the vertical rod, and the first through hole is located between the chute and the Between the second through holes, one end of the third link facing the vertical movable rod is provided with an eighth through hole, the other end of the third link is provided with a ninth through hole, and the horizontal connecting arm is provided with an eighth through hole. An eleventh through hole is arranged on it;

The fourth rivet passes through the ninth through hole from top to bottom and then extends into the second through hole, and the sixth rivet passes through the eleventh through hole from top to bottom and then extends into the second through hole into the eighth through hole.

The utility model further provides a door and window, comprising a door and window body and the locking hinge according to any one of the descriptions of the embodiments of the present application, wherein the locking hinge is arranged on the door and window body.

Description of drawings

1 is a schematic structural diagram of a locking hinge according to an embodiment of the present invention;

Fig. 2 is the exploded view of Fig. 1;

3 is a schematic view of the support arm in FIG. 1 in a first position;

4 is a schematic view of the support arm in FIG. 1 in a second position;

Fig. 5 is the schematic diagram of the second connecting rod in Fig. 1;

FIG. 6 is a schematic diagram of the slide bar in FIG. 1 .

The figures are marked as follows:

10, sliding rod; 101, horizontal rod; 1011, chute; 1012, first through hole; 1013, second through hole; 102, vertical rod; 1021, escape opening; 20, first connecting rod; 201, first Three through holes; 202, fourth through hole; 203, fifth through hole; 30, second connecting rod; 301, horizontal movable rod; 3011, sixth through hole; 3012, seventh through hole; 302, vertical movement rod; 3021, the first limit plate; 3022, the second limit plate; 40, the third connecting rod; 401, the eighth through hole; 402, the ninth through hole; 50, the support arm; 501, the horizontal connecting arm; 5011, protrusion; 5012, tenth through hole; 5013, eleventh through hole; 502, vertical connecting arm; 60, first rivet; 70, second rivet; 80, third rivet; 90, fourth rivet ; 100, the fifth rivet; 110, the sixth rivet.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not subject to the specific embodiments disclosed below. limit.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connected, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction between the two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may be in direct contact with the first and second features, or the first and second features through an intermediary indirect contact. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

As shown in FIG. 1 , in an embodiment of the present invention, a locking hinge is provided, including: a sliding rod 10 , a first connecting rod 20 , a second connecting rod 30 , a third connecting rod 40 and a support arm 50 , The first connecting rod 20 and the third connecting rod 40 are arranged between the sliding rod 10 and the support arm 50 , and the same ends of the first connecting rod 20 and the third connecting rod 40 are both rotatably connected with the support arm 50 . The other ends of the rod 20 and the third connecting rod 40 are both rotatably connected to the sliding rod 10; the second connecting rod 30 is arranged between the sliding rod 10 and the first connecting rod 20, and one end of the second connecting rod 30 is connected to the first connecting rod 20 is connected in rotation, the other end is slidably connected with the sliding rod 10, and the end of the first connecting rod 20 and the sliding rod 10 is connected to the end of the third connecting rod 40 and the sliding rod 10 is connected with the second connecting rod 30 and the sliding rod 10. between one end; the support arm 50 has a first closed position relative to the sliding rod 10 and a second open position, when the support arm 50 is in the first position, the support arm 50 is locked relative to the second link 30, when the support arm 50 is in the first position, the support arm 50 is locked relative to the second link 30 When the arm 50 is in the second position, the carrier arm 50 is open relative to the second link 30 .

In use, the carrier arm 50 is mounted on the window, while the slide bar 10 is mounted on the window frame, when the carrier arm 50 is in the closed position, the carrier arm 50 is locked relative to the second link 30, thereby making the integral hinge It has a locking function when closed, thereby improving the sealing performance of the window.

In some embodiments, as shown in FIG. 2 , the sliding rod 10 in the present application includes a horizontal rod 101 and a vertical rod 102, and one end of the horizontal rod 101 is vertically connected with the vertical rod 102; the second link 30 includes a horizontal movable rod A rod 301 and a vertical movable rod 302, one end of the horizontal movable rod 301 is vertically connected with the vertical movable rod 302; the support arm 50 includes a horizontal connecting arm 501 and a vertical connecting arm 502, and one end of the horizontal connecting arm 501 is connected with the vertical connecting arm 502 is vertically connected, and a protrusion 5011 is provided on one end of the horizontal connecting arm 501 facing the vertical connecting arm 502, wherein the same ends of the first link 20 and the third link 40 are both connected with the horizontal connecting arm 501, the first The other ends of the connecting rod 20 and the third connecting rod 40 are rotatably connected with the horizontal rod 101; The vertical rod 102 is located on the same side of the horizontal movable rod 301; when the support arm 50 is in the first position, the protrusion 5011 is locked relative to the vertical movable rod 302, and when the support arm 50 is in the second position, the protrusion 5011 and the The vertical movable rod 302 is separated.

Specifically, the above-mentioned vertical rod 102, vertical movable rod 302 and vertical connecting arm 502 are all located on the same side. During use, when the horizontal connecting arm 501 is rotated and folded, as shown in FIG. When the horizontal rod 101 is parallel, the protrusion 5011 on the horizontal connecting arm 501 is locked relative to the vertical movable rod 302, and the whole product has a locking function at this time; when the horizontal connecting arm 501 is rotated to open, as shown in FIG. The lift 5011 is gradually separated from the vertical movable rod 302, and at the same time, the second link 30 rotates relative to the sliding rod 10, and the vertical movable rod 302 on the second link 30 has a tendency to open outward while moving. Then, as shown in FIG. 1 , the protrusion 5011 is completely separated from the vertical movable rod 302 .

In some embodiments, as shown in FIG. 5 , the vertical movable rod 302 in the present application includes a first limit plate 3021 and a second limit plate 3022 , wherein the first limit plate 3021 and the second limit plate 3022 is arranged on the same side of the horizontal movable rod 301, and a bending part is arranged between the first limit plate 3021 and the second limit plate 3022; when the support arm 50 is in the first position, the protrusion 5011 is located in the bending part, The support arm 50 is locked relative to the second link 30. When the support arm 50 is in the second position, the horizontal movable rod 301 slides relative to the horizontal rod 101, and the protrusion 5011 is separated from the bending portion.

Specifically, the end of the protrusion 5011 facing the vertical movable rod 302 is a triangular structure, and the triangular structure is matched with the bending part. When the support arm 50 is in the first position, the triangular structure is stuck between the first limiting plate 3021 and the bending part. In the retraction groove on the bending portion between the second limit plates 3022, the locking function is realized. When the hinge is opened, the protrusion 5011 will be inclined to open outward, and the horizontal movable rod 301 will slide relative to the horizontal rod 101. At this time, , the vertical movable rod 302 on the second link 30 moves toward the vertical rod 102 and tends to open outward. During the hinge opening process, the shape trajectory of the vertical movable rod 302 on the second link 30 is close to the convex Lift 5011 until the protrusion 5011 is disengaged. It can be understood that in other embodiments, other protrusions with limiting function can also be used.

In some embodiments, as shown in FIG. 6 , the end of the vertical rod 102 facing the horizontal rod 101 in the present application is provided with an escape opening 1021 . Since the horizontal movable rod 301 can slide relative to the horizontal rod 101, in the process of closing or opening the horizontal connecting arm 501, the horizontal connecting arm 501 drives the first link 20 and the third link 40 to rotate at the same time, and the first link 20 drives The second link 30 rotates, when the second link 30 rotates, the second link 30 will slide relative to the horizontal rod 101, and at this time, the vertical movable rod 302 on the second link 30 will also move synchronously , since the vertical movable rod 302 and the vertical rod 102 are located on the same side, the setting of the escape port 1021 can avoid the interference between the vertical movable rod 302 and the vertical rod 102 .

In some embodiments, for the convenience of connecting the horizontal movable rod, the first link and the horizontal rod together, as shown in FIG. 2 , the locking hinge in this application further includes a first rivet 60 and a second rivet 70 , wherein , one end of the horizontal rod 101 facing the vertical rod 102 is provided with a chute 1011 along the length direction of the horizontal rod 101, the first rivet 60 passes through the chute 1011 from bottom to top and is connected to one end of the horizontal movable rod 301, and the first rivet 60 is connected to one end of the horizontal movable rod 301. The rivet 60 can move in the chute 1011 , and the second rivet 70 is connected to the first connecting rod 20 after passing through the other end of the horizontal movable rod 301 from bottom to top.

Specifically, a sixth through hole 3011 is provided at the end of the horizontal movable rod 301 facing the vertical movable rod 302 , and a seventh through hole 3012 is provided at the end of the horizontal movable rod 301 away from the vertical movable rod 302 . A fourth through hole 202 is provided; the first rivet 60 passes through the chute 1011 from bottom to top and then extends into the sixth through hole 3011, and the second rivet 70 passes through the seventh through hole 3012 from bottom to top and then extends into the sixth through hole 3011 into the fourth through hole 202 . When the first link 20 drives the horizontal movable rod 301 to rotate, the first rivet 60 on the horizontal movable rod 301 will move in the chute 1011 , so that the horizontal movable rod 301 rotates relative to the horizontal rod 101 .

In some embodiments, in order to conveniently connect the sliding rod, the first link and the support arm together, as shown in FIG. 2 , the locking hinge in this application further includes a third rivet 80 and a fifth rivet 100 . The first One end of the connecting rod 20 facing the vertical movable rod 302 is provided with a third through hole 201 , the other end of the first connecting rod 20 is provided with a fifth through hole 203 , and the fourth through hole 202 is located between the third through hole 201 and the fifth through hole 203 . Between the holes 203, the horizontal connecting arm 501 is provided with a tenth through hole 5012, and the horizontal rod 101 is provided with a first through hole 1012; the third rivet 80 passes through the fifth through hole 203 from top to bottom and then extends into the first In the first through hole 1012 , the fifth rivet 100 passes through the tenth through hole 5012 from top to bottom and then extends into the third through hole 201 .

In some embodiments, in order to conveniently connect the sliding rod, the third link and the support arm together, as shown in FIG. 2 , the locking hinge in this application further includes a fourth rivet 90 and a sixth rivet 110 , and the horizontal rod One end of the 101 away from the vertical rod 102 is provided with a second through hole 1013, the first through hole 1012 is located between the chute 1011 and the second through hole 1013, and the end of the third link 40 facing the vertical movable rod 302 is provided with a first through hole 1013. Eight through holes 401, the other end of the third connecting rod 40 is provided with a ninth through hole 402, and the horizontal connecting arm 501 is provided with an eleventh through hole 5013; the fourth rivet 90 passes through the ninth through hole 402 from top to bottom After extending into the second through hole 1013 , the sixth rivet 110 passes through the eleventh through hole 5013 from top to bottom and then extends into the eighth through hole 401 .

The utility model also provides a door and window, comprising a door and window body and a locking hinge as described in any one of the embodiments of the present application, and the locking hinge is arranged on the door and window body.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (10)

1. A locking hinge, characterized in that it comprises: a sliding rod (10), a first connecting rod (20), a second connecting rod (30), a third connecting rod (40) and a support arm (50); The first link (20) and the third link (40) are arranged between the sliding rod (10) and the support arm (50), and the first link (20) and the The same end of the third link (40) is rotatably connected to the support arm (50), and the other ends of the first link (20) and the third link (40) are both connected to the sliding The rod (10) is rotatably connected; The second connecting rod (30) is arranged between the sliding rod (10) and the first connecting rod (20), and one end of the second connecting rod (30) is connected to the first connecting rod ( 20) Rotationally connected, the other end is slidably connected with the sliding rod (10), and one end of the first link (20) connected with the sliding rod (10) is located at the third link (40) and the other end. between one end of the sliding rod (10) connected to the second connecting rod (30) and one end of the sliding rod (10); The support arm (50) has a first position that is closed relative to the sliding rod (10) and a second position that is opened, and when the support arm (50) is in the first position, the support arm (50) Locked relative to the second link (30), when the bracket arm (50) is in the second position, the bracket arm (50) is opened relative to the second link (30). 2. The locking hinge according to claim 1, wherein the sliding rod (10) comprises a horizontal rod (101) and a vertical rod (102), and one end of the horizontal rod (101) is connected to the The vertical rod (102) is vertically connected; the second link (30) includes a horizontal movable rod (301) and a vertical movable rod (302), and one end of the horizontal movable rod (301) is connected to the vertical movable rod (301). The rod (302) is connected vertically; the horizontal connecting arm (501) on the support arm (50) is provided with a protrusion (5011); The same ends of the first link (20) and the third link (40) are both connected to the horizontal connecting arm (501), the first link (20) and the third link The other end of the (40) is rotatably connected with the horizontal rod (101); one end of the horizontal movable rod (301) is rotatably connected with the first link (20), and the other end is connected with the horizontal rod (101). ) sliding connection, the vertical movable rod (302) and the vertical rod (102) are located on the same side of the horizontal movable rod (301); When the support arm (50) is in the first position, the protrusion (5011) is locked relative to the vertical movable rod (302), and when the support arm (50) is in the second position, all the The protrusion (5011) is separated from the vertical movable rod (302). 3. The locking hinge according to claim 2, wherein the vertically movable rod (302) comprises a first limit plate (3021) and a second limit plate (3022), the first limit The position plate (3021) and the second limit plate (3022) are arranged on the same side of the horizontal movable rod (301), and the first limit plate (3021) and the second limit plate (3022) ) is provided with a bending part; When the support arm (50) is in the first position, the protrusion (5011) is located in the bent portion, and the support arm (50) is locked relative to the second link (30); when When the support arm (50) is in the second position, the horizontal movable rod (301) slides relative to the horizontal rod (101), and the protrusion (5011) is separated from the bent portion. 4 . The locking hinge according to claim 3 , wherein one end of the protrusion ( 5011 ) facing the vertical movable rod ( 302 ) is a triangular structure, and the triangular structure is connected to the bending portion. 5 . match. 5 . The locking hinge according to claim 2 , wherein an escape opening ( 1021 ) is provided on the end of the vertical rod ( 102 ) facing the horizontal rod ( 101 ). 6 . 6. The locking hinge according to claim 2, further comprising a first rivet (60) and a second rivet (70), the horizontal rod (101) facing the vertical rod (102) One end is provided with a chute (1011) along the length direction of the horizontal rod (101), and the first rivet (60) passes through the chute (1011) from bottom to top and then communicates with the horizontal movable rod (301). ) is connected with one end of the first rivet (60), and the first rivet (60) can move in the chute (1011), and the second rivet (70) passes through the other side of the horizontal movable rod (301) from bottom to top. One end is connected with the first connecting rod (20). 7. The locking hinge according to claim 6, wherein a sixth through hole (3011) is provided at one end of the horizontal movable rod (301) facing the vertical movable rod (302), and the horizontal movable rod (301) is provided with a sixth through hole (3011). A seventh through hole (3012) is provided at one end of the movable rod (301) away from the vertical movable rod (302), and a fourth through hole (202) is provided on the first connecting rod (20); The first rivet (60) passes through the chute (1011) from bottom to top and then extends into the sixth through hole (3011), and the second rivet (70) passes through from bottom to top The seventh through hole (3012) extends into the fourth through hole (202). 8 . The locking hinge according to claim 7 , further comprising a third rivet ( 80 ) and a fifth rivet ( 100 ), the first link ( 20 ) facing the vertical movable rod ( 8 . 302) is provided with a third through hole (201) at one end, the other end of the first connecting rod (20) is provided with a fifth through hole (203), and the fourth through hole (202) is located in the third through hole (202). Between the through hole (201) and the fifth through hole (203), a tenth through hole (5012) is arranged on the horizontal connecting arm (501), and a first through hole (5012) is arranged on the horizontal rod (101). hole(1012); The third rivet (80) passes through the fifth through hole (203) from top to bottom and then extends into the first through hole (1012), and the fifth rivet (100) goes from top to bottom After passing through the tenth through hole (5012), it extends into the third through hole (201). 9. The locking hinge according to claim 8, characterized in that further comprising a fourth rivet (90) and a sixth rivet (110), the horizontal rod (101) being away from the vertical rod (102) One end is provided with a second through hole (1013), the first through hole (1012) is located between the chute (1011) and the second through hole (1013), and the third link (40) An eighth through hole (401) is provided at one end of the vertical movable rod (302), a ninth through hole (402) is provided at the other end of the third link (40), and the horizontal connecting arm ( 501) is provided with an eleventh through hole (5013); The fourth rivet (90) passes through the ninth through hole (402) from top to bottom and then extends into the second through hole (1013), and the sixth rivet (110) goes from top to bottom After passing through the eleventh through hole (5013), it extends into the eighth through hole (401). 10. A door and window, characterized by comprising a door and window body and the locking hinge according to any one of claims 1 to 9, wherein the locking hinge is provided on the door and window body.

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