A hinge

Abstract

The application provides a hinge for connecting a fixed frame of a window or door with a sash frame of the window or door. Specifically, the hinge comprises a fixed plate, a connecting arm assembly, a positioning block and a sliding block. The connecting arm assembly is hinged to the fixed plate and comprises a first hinged end and a second hinged end hinged to the fixed plate and a first swingable end and a second swingable end. The positioning block is hinged to the first swingable end and is fixedly connected with the sash frame. The sliding block is hinged to the second swingable end and is slidably connected with the sash frame. The hinge is simple and reliable in structure and more reliable in opening limiting.

Description

Technical Field

[0001] This application relates to the field of door and window technology, specifically to a hinge. Background Technology

[0002] In the door and window industry, hinges are a commonly used accessory that allows doors and windows to open and close flexibly. Depending on the opening method or application scenario, there are different types of hinges, such as semi-open, fully open, and sliding hinges.

[0003] In products such as smoke exhaust windows, hinges not only need to provide a connection for opening but also need to provide a reliable load-bearing capacity for the sash frame and ensure reliability in use to meet safety and reliability requirements. Furthermore, for smoke exhaust windows, fire-fighting windows, or residential windows, for safety reasons, an opening angle range needs to be set to provide sufficient ventilation and prevent accidental falls from the window.

[0004] Currently, hinge components used in doors and windows such as smoke exhaust windows often achieve stability, reliability, and safety by increasing structural strength, enlarging the bearing surface, and incorporating limiting devices. However, increasing structural components and thickness not only increases the overall weight of the hinge product, but also affects its lifespan and safety due to the excessive number of parts involved. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, this application provides a hinge that improves safety, reliability, and user experience through a simple structural design.

[0006] The provided hinges are used to connect the fixed frame of a window or door to the sash frame of the window or door.

[0007] Specifically, the hinge includes: A fixing plate for fixed connection with the fixing frame; A connecting arm assembly for movably connecting the fixed frame and the fan frame, the connecting arm assembly being hinged to the fixed plate, the connecting arm assembly including a first hinge end and a second hinge end hinged to the fixed plate, and a first swing end and a second swing end that can swing. A positioning block for limiting the relative position of the fan frame and the connecting arm assembly, the positioning block is hinged to the first swing end, and the positioning block is also fixedly connected to the fan frame; A sliding support block is used to constrain the movement trajectory of the fan frame and provide support. The sliding support block is hinged to the second swing end and is also slidably connected to the fan frame.

[0008] The hinge has an extended state, a retracted state, and an intermediate state transitioning between the extended and retracted states. When the hinge is in the extended state, the first swing end and the second swing end swing outward to a first position away from the fixed plate, and the fan frame forms a maximum angle with the fixed frame. When the hinge is in the retracted state, the first swing end and the second swing end swing to a second position close to the fixed plate, and the fan frame forms a minimum angle with the fixed frame. When the hinge is in the intermediate state, the first swing end and the second swing end are at a third position on the swing trajectory between the first and second positions.

[0009] The provided hinge connects the fan frame and the fixed frame through the first hinge end, the second hinge end, the first swing end, and the second swing end, respectively, forming a four-position distributed connection and support hinge structure. Compared with the traditional hinge structure, it provides better support and improves the stability and reliability of the overall structure.

[0010] Furthermore, by setting a sliding support block at the second swing end that slides in conjunction with the fan frame, it can not only bear the weight of the fan frame, but also cooperate with the opening and closing movement of the fan frame, thereby improving the support effect and making the movement smoother.

[0011] In one alternative implementation, the connecting arm assembly includes a first arm, a second arm, and a third arm; one end of the first arm is the first hinged end, the other end of the first arm is the first swing end, the middle part of the first arm is hinged to the first end of the third arm, and the second end of the third arm away from the first arm is the second swing end; the first end of the second arm is the second hinged end, the second end of the second arm is hinged to the body of the third arm, and the hinge point between the second arm and the third arm is close to the first end of the third arm.

[0012] The connecting arm assembly according to this implementation method has three arms that are hinged together, which has a simple structure and improves product reliability.

[0013] In one alternative implementation, the first arm has an outwardly protruding hinge portion on one side of its body for hinged to the first end of the third arm. The outer side of the arm body between the hinge portion and the first swing end forms a first top edge, and the outer side of the arm body between the hinge portion and the first hinge end forms a second top edge. The first top edge is configured to abut against the second end of the second arm to limit the maximum extension range of the connecting arm assembly, and the second top edge is configured to abut against the second end of the second arm to limit the minimum retraction range of the connecting arm assembly.

[0014] By setting a first top edge and a second top edge in the first arm, and cooperating with the second and third arms, the opening range of doors and windows can be limited, avoiding the limitation failure that is prone to occur in conventional product limiting structures.

[0015] According to the technical solution provided by the aforementioned implementation method, the hinge has a simple and reliable structure through structural improvement design, and the opening limit is more reliable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the hinge structure provided in one embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the hinge and fan frame provided in one embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the connecting arm assembly provided in one embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the connecting arm assembly in its unfolded state, provided in one embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the structure of a positioning block provided in one embodiment of this application.

[0022] Figure 6 This is a schematic diagram of the structure of a sliding block provided in one embodiment of this application.

[0023] Figure 7 This is a schematic diagram of the sliding block and the sliding groove provided in one embodiment of this application.

[0024] Explanation of reference numerals in the attached figures: 1. Fixed plate; 2. Connecting arm assembly; 3. Positioning block; 4. Sliding support block; 5. Fixed frame; 6. Sector frame; 11. Hinge seat; 201. First hinge end; 202. Second hinge end; 203. First swing end; 204. Second swing end; 21. First arm; 211. First top edge; 212. Second top edge; 213. Hinge part; 22. Second arm; 23. Third arm; 31. Fixed part; 32. Abutting part; 33. Limiting part; 34. Positioning pin hole; 41. Sliding support body; 42. Protruding edge; 43. Locking hole; 44. Sliding support pin hole; 61. Slide groove; 62. Locking edge. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In this document, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0027] Furthermore, in this article, directional terms such as "upper" and "lower" are defined relative to the orientation of the structure as shown in the attached drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the structure.

[0028] Combination Figures 1 to 7 This application provides a hinge for connecting the fixed frame 5 of a window or door to the sash frame 6 of a window or door.

[0029] Specifically, the hinge includes: Fixing plate 1 for fixed connection with the fixing frame 5; The connecting arm assembly 2 is used to form a movable connection between the fixed frame 5 and the fan frame 6. The connecting arm assembly 2 is hinged to the fixed plate 1. The connecting arm assembly 2 includes a first hinge end 201 and a second hinge end 202 hinged to the fixed plate 1, as well as a swingable first swing end 203 and a swingable second swing end 204. The positioning block 3 is used to limit the relative position of the fan frame 6 and the connecting arm assembly 2. The positioning block 3 is hinged to the first swing end 203 and is also fixedly connected to the fan frame 6. A sliding support block 4 is used to constrain the movement trajectory of the fan frame 6 and provide support. The sliding support block 4 is hinged to the second swing end 204 and is also slidably connected to the fan frame 6.

[0030] In this application, the hinge has an extended state, a retracted state, and an intermediate state transitioning between the extended state and the retracted state; when the hinge is in the extended state, the first swing end 203 and the second swing end 204 swing outward to a first position away from the fixed plate 1, and the fan frame 6 forms a maximum angle with the fixed frame 5; when the hinge is in the retracted state, the first swing end 203 and the second swing end 204 swing to a second position close to the fixed plate 1, and the fan frame 6 forms a minimum angle with the fixed frame 5; when the hinge is in the intermediate state, the first swing end 203 and the second swing end 204 are at a third position on the swing trajectory between the first position and the second position.

[0031] In conventional door and window hinge structures, a three-point support structure is typically used. For example, the hinge is connected to the fixed frame 5 at two points, and then connected to the sash frame 6 at another point to form a hinged support. The opening and closing of the sash frame 6 is achieved by making one or two points connected to the fixed frame 5 have a sliding design.

[0032] While this method can achieve the hinged effect, the large weight of the fan frame 6 often necessitates structural or material reinforcement to ensure reliable use.

[0033] This application connects the fan frame 6 and the fixed frame 5 through the first hinge end 201, the second hinge end 202, the first swing end 203 and the second swing end 204 respectively, forming a four-position distributed connection and support hinge structure. Compared with the traditional hinge structure, it plays a better supporting role and improves the stability and reliability of the overall structure.

[0034] Furthermore, by setting a sliding support block 4 that slides with the fan frame 6 at the second swing end 204, it can not only bear the weight of the fan frame 6, but also cooperate with the opening and closing movement of the fan frame 6, thereby improving the support effect and making the movement smoother.

[0035] Combination Figure 2 and Figure 3 As shown, the connecting arm assembly 2 includes a first arm 21, a second arm 22, and a third arm 23; one end of the first arm 21 is the first hinge end 201, and the other end of the first arm 21 is the first swing end 203. The middle part of the arm body of the first arm 21 is hinged to the first end of the third arm 23, and the second end of the third arm 23 away from the first arm 21 is the second swing end 204; the first end of the second arm 22 is the second hinge end 202, and the second end of the second arm 22 is hinged to the arm body of the third arm 23. The hinge point between the second arm 22 and the third arm 23 is close to the first end of the third arm 23.

[0036] In this application, three support arms are hinged together to form a connecting arm assembly 2, which not only provides four support endpoints, but also cooperates with each other to form a reliable hinge structure, thereby improving service life.

[0037] In this embodiment, the first arm 21, the second arm 22 and the third arm 23 adopt a flat strip structure, which avoids the problem of insufficient strength at the bending part.

[0038] In window and door products such as smoke exhaust windows and fire-resistant windows, it is often necessary to limit the maximum opening range of the sash frame 6 to meet safety requirements. Traditional hinge structures typically use limiting posts, limiting blocks, and limiting grooves or connecting arm assemblies 2 in conjunction with each other. For example, a limiting post is set in the component connected to the fixed frame 5, which then cooperates with the connecting arm assembly 2 itself; or a limiting groove is set in the component connected to the fixed frame 5, which then cooperates with the limiting post or limiting block set in the connecting arm assembly 2 to limit the opening range. During use, due to excessive force or prolonged use, the limiting parts 33 may become loose or wear, leading to limiting failure.

[0039] To address the problems of existing technologies, this application presents an improved design for the limiting structure.

[0040] Combination Figure 3 As shown in this application, the first arm 21 has an outwardly protruding hinge portion 213 on one side of its body for hinged connection with the first end of the third arm 23. The outer side of the arm body between the hinge portion 213 and the first swing end 203 forms a first top edge 211, and the outer side of the arm body between the hinge portion 213 and the first hinge end 201 forms a second top edge 212. The first top edge 211 is configured to abut against the second end of the second arm 22 to limit the maximum extension range of the connecting arm assembly 2, and the second top edge 212 is configured to abut against the second end of the second arm 22 to limit the minimum retraction range of the connecting arm assembly 2.

[0041] The opening and closing angle can be controlled by the abutting cooperation between the second arm 22 and the first arm 21, eliminating the need for vulnerable structures such as limit posts, which greatly improves reliability and safety.

[0042] In this application, through the connection design of the first arm 21, the second arm 22 and the third arm 23, the maximum angle formed by the fan frame 6 and the fixed frame 5 is 60°-80°.

[0043] like Figure 4As shown, when the hinge is in its unfolded state, the second arm 22 abuts against the first top edge 211 of the first arm 21, causing the hinge's opening angle α to reach its maximum. In this embodiment, the angle α is 70°; in other embodiments, the angle α can be 60°, 65°, 75°, or 80°. The effect of limiting the opening angle α as described in this application can be achieved simply by controlling the lengths of the first arm 21, the second arm 22, and the third arm 23, and the position of the hinge portion 213 of the first arm 21.

[0044] Combination Figure 5 As shown in this application, the positioning block 3 includes a fixing part 31 and an abutting part 32. The abutting part 32 is connected to one side of the fixing part 31. The fixing part 31 is hinged to the second swing end 204. The abutting part 32 is connected to the side of the fan frame 6.

[0045] Specifically, the fixing part 31 may be provided with a positioning pin hole 34, which is used to insert a pin so that the fixing part 31 and the second swing end 204 can be hinged by the pin.

[0046] In this embodiment, the abutting part 32 can be fixedly connected to the fan frame 6 by means of rivets. In other embodiments, screws, welding, or other methods can also be used for connection and fixation.

[0047] In this application, a limiting part 33 is provided for the fixing part 31 to extend and protrude toward the fan frame 6 on the other side of the side connected to the abutting part 32. The limiting part 33 abuts against the fan frame 6 to restrict the movement of the positioning block 3.

[0048] Specifically, in combination Figure 5 As shown, the abutting part 32 and the limiting part 33 form a positioning angle β, and the positioning angle β is adapted to the corner of the fan frame 6. When the positioning block 3 is connected to the fan frame 6, the abutting part 32 and the limiting part 33 respectively abut against the two sides of the corner of the fan frame 6 to mate the positioning block 3 with the corner of the fan frame 6.

[0049] By protruding the limiting part 33 relative to the fixing part 31 toward the fan frame 6, a space can be left between the fixing part 31 and the fan frame 6 to accommodate the top of the pin, thus providing space for the pin assembly.

[0050] In this embodiment, the limiting part 33 can be fixedly connected to the fan frame 6 by means of rivets. In other embodiments, screws, welding, or other methods can also be used for connection and fixation.

[0051] Combination Figure 6As shown in this application, the sliding block 4 includes a sliding body 41, and at least one side of the sliding body 41 is provided with a protruding edge 42 extending outward.

[0052] To facilitate the sliding of the sliding support block 4, combined with Figure 2 and Figure 7 As shown, in this embodiment, the fan frame 6 is provided with a sliding groove 61, the sliding groove 61 accommodates the sliding support block 4 and allows the sliding support block 4 to slide, the sliding groove 61 is provided with a retaining edge 62 that cooperates with the protruding edge 42, and the protruding edge 42 abuts against the retaining edge 62.

[0053] In this embodiment, the sliding support body 41 is provided with a sliding support pin hole 44, which is used for a pin to pass through so as to hinge the sliding support block 4 to the first swing end 203.

[0054] During use, when the hinge opens and closes, the connecting arm assembly 2 unfolds and retracts. At this time, the sliding support block 4 slides in the sliding groove 61 of the fan frame 6, and the positioning block 3 rotates relative to it, thereby achieving control and support for opening and closing.

[0055] In practical applications, it is sometimes necessary to fix the fan frame 6 open at a desired angle. To achieve this, combined with... Figure 6 As shown in this application, the sliding support block 4 is provided with a locking hole 43, which penetrates the sliding support block 4 and faces the fan frame 6.

[0056] With the locking hole 43, when it is necessary to fix the open state of the fan frame 6, it is only necessary to use a locking member that is compatible with the locking hole 43, insert the locking member into the locking hole 43 and abut against the fan frame 6 to lock the relative sliding of the sliding block 4 and the fan frame 6, thereby locking the opening and closing of the fan frame 6.

[0057] In this embodiment, the locking hole 43 can be a threaded hole structure, and the locking component can be a bolt.

[0058] Combination Figure 1 As shown in this embodiment, the fixing plate 1 extends protrudingly and is provided with at least two hinge seats 11, and the first hinge end 201 and the second hinge end 202 are respectively hinged to the hinge seats 11. The hinge seats 11 provide space for the hinge portion between the connecting arm assembly 2 and the fixing plate 1.

[0059] The hinges provided in the embodiments of this application have been described in detail above. Specific embodiments have been used to explain the principles and implementation methods of this application. The above description is only for the purpose of helping to understand the method and core mechanism of this application. At the same time, for those skilled in the art, there will be changes in specific embodiments and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A hinge for connecting a fixed frame of a window or door to a sash frame of a window or door, characterized in that, The hinge includes: A fixing plate for fixed connection with the fixing frame; A connecting arm assembly for movably connecting the fixed frame and the fan frame, the connecting arm assembly being hinged to the fixed plate, the connecting arm assembly including a first hinge end and a second hinge end hinged to the fixed plate, and a first swing end and a second swing end that can swing. A positioning block for limiting the relative position of the fan frame and the connecting arm assembly, the positioning block is hinged to the first swing end, and the positioning block is also fixedly connected to the fan frame; A sliding support block is used to constrain the movement trajectory of the fan frame and provide support. The sliding support block is hinged to the second swing end and is also slidably connected to the fan frame. The hinge has an extended state, a retracted state, and an intermediate state transitioning between the extended and retracted states. When the hinge is in the extended state, the first swing end and the second swing end swing outward to a first position away from the fixed plate, and the fan frame forms a maximum angle with the fixed frame. When the hinge is in the retracted state, the first swing end and the second swing end swing to a second position close to the fixed plate, and the fan frame forms a minimum angle with the fixed frame. When the hinge is in the intermediate state, the first swing end and the second swing end are at a third position on the swing trajectory between the first and second positions. The connecting arm assembly includes a first arm, a second arm, and a third arm; one end of the first arm is the first hinge end, the other end of the first arm is the first swing end, the middle part of the first arm body is hinged to the first end of the third arm, and the second end of the third arm away from the first arm is the second swing end; the first end of the second arm is the second hinge end, the second end of the second arm is hinged to the arm body of the third arm, and the hinge point between the second arm and the third arm is close to the first end of the third arm; The first arm has an outwardly protruding hinge portion on one side of its body for hinged to the first end of the third arm. The outer side of the arm body between the hinge portion and the first swing end forms a first top edge, and the outer side of the arm body between the hinge portion and the first hinge end forms a second top edge. The first top edge is configured to abut against the second end of the second arm to limit the maximum extension range of the connecting arm assembly, and the second top edge is configured to abut against the second end of the second arm to limit the minimum retraction range of the connecting arm assembly.

2. The hinge according to claim 1, characterized in that: The maximum angle formed between the fan frame and the fixed frame is 60°-80°.

3. The hinge according to claim 1, characterized in that: The positioning block includes a fixing part and an abutting part. The abutting part is connected to one side of the fixing part, the fixing part is hinged to the second swing end, and the abutting part is connected to the side of the fan frame.

4. The hinge according to claim 3, characterized in that: The fixing part extends and protrudes toward the fan frame from the side opposite to the side connected to the abutting part, and the limiting part abuts against the fan frame to restrict the movement of the positioning block.

5. The hinge according to claim 1, characterized in that: The sliding block includes a sliding body, and at least one side of the sliding body has a protruding edge extending outward; The fan frame is provided with a sliding groove, which accommodates the sliding support block and allows the sliding support block to slide. The sliding groove is provided with a retaining edge that cooperates with the protruding edge, and the protruding edge abuts against the retaining edge.

6. The hinge according to claim 5, characterized in that: The sliding support block is provided with a locking hole, which passes through the sliding support block and faces the fan frame.

7. The hinge according to claim 6, characterized in that: The locking hole is a threaded hole structure.

8. The hinge according to claim 1, characterized in that: The fixed plate extends outward and is provided with at least two hinge seats, with the first hinge end and the second hinge end respectively hinged to the hinge seats.

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