Hinge

Abstract

The utility model provides a hinge which is used for connecting a fixed frame of a window or a door with a sash frame of the window or the door. Specifically, the hinge comprises a fixing plate, a connecting arm assembly, a positioning block and a sliding supporting block, the connecting arm assembly is hinged to the fixing plate and comprises a first hinged end, a second hinged end, a first swinging end and a second swinging end, the first hinged end and the second hinged end are hinged to the fixing plate, the first swinging end and the second swinging end can swing, the positioning block is hinged to the first swinging end, and the sliding supporting block is hinged to the positioning block. The positioning block is further fixedly connected with the sash frame, the sliding supporting block is hinged to the second swing end, and the sliding supporting block is further connected with the sash frame in a sliding mode. Through the structural improvement design, the hinge is simple and firm in structure and more reliable in opening and limiting.

Description

Technical Field

[0001] The present application relates to the technical field of doors and windows, and in particular to a hinge. Background Art

[0002] In the field of doors and windows, hinges are a commonly used accessory that allows doors and windows to be opened and closed flexibly. There are different types of hinges, such as half-open, full-open, and push-to-close, depending on the opening method or application scenario.

[0003] In products such as smoke exhaust windows, hinges not only need to provide an unfolding connection, but also provide a reliable load-bearing function for the sash frame, and need to ensure reliability in use to meet the requirements of safety and reliability. In addition, for smoke exhaust windows, fire windows or household windows, for safety reasons, it is necessary to set the opening angle range to provide sufficient ventilation and avoid accidental falls from the window.

[0004] At present, hinge accessories used in doors and windows such as smoke exhaust windows often achieve stability, reliability and safety by improving structural strength, increasing the bearing surface, setting limit devices, etc. However, increasing structural components and structural thickness will not only increase the overall weight of the hinge product, but also affect the life and safety of too many parts. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides a hinge, which improves safety, reliability and user experience through a simple structural design.

[0006] The provided hinge is used to connect the fixed frame of a window or door with the sash frame of the window or door.

[0007] Specifically, the hinge includes:

[0008] A fixing plate used for fixed connection with the fixing frame;

[0009] A connecting arm assembly used to form an active connection between the fixing frame and the fan frame, the connecting arm assembly being hinged to the fixing plate, the connecting arm assembly comprising a first hinged end and a second hinged end hinged to the fixing plate and a first swinging end and a second swinging end that can swing;

[0010] a positioning block for limiting the relative positions of the sash frame and the connecting arm assembly, the positioning block being hinged to the first swing end and also fixedly connected to the sash frame;

[0011] A sliding support block is used to constrain the moving track of the sash frame and provide support. The sliding support block is hinged to the second swing end and is also slidably connected to the sash frame.

[0012] The hinge has an expanded form, a folded form, and an intermediate form in transition between the expanded form and the folded form; when the hinge is in the expanded 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 folded 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 of the swing trajectory between the first position and the second position.

[0013] The provided hinge is respectively connected to 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, forming a hinge structure with four dispersed connection supports. Compared with the traditional hinge structure, it plays a better supporting role and improves the stability and reliability of the overall structure.

[0014] Furthermore, by providing a sliding support block that slidably cooperates with the sash frame at the second swing end, it can not only bear the weight of the sash frame, but also cooperate with the opening and closing movement of the sash frame, thereby improving the supporting effect and making the movement smoother.

[0015] In an optional 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 arm body 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 arm body of the third arm, and the hinge between the second arm and the third arm is close to the first end of the third arm.

[0016] The connecting arm assembly according to the present implementation is hinged by three arms, has a simple structure, and improves product reliability.

[0017] In an optional implementation, one side of the arm body of the first arm is provided with a hinge portion protruding outward and used to be 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 expansion 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 folding range of the connecting arm assembly.

[0018] By setting the first top edge and the second top edge on the first arm, and cooperating with the second arm and the third arm, the effect of limiting the opening range of the door and window can be achieved, avoiding the limit failure that is easy to occur in the limit structure of conventional products.

[0019] According to the technical solution provided by the aforementioned implementation method, the hinge is designed through structural improvement, the structure is simple and reliable, and the opening limit is more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic structural diagram of a hinge provided in one embodiment of the present application.

[0022] Figure 2 A schematic structural diagram of a hinge and a fan frame provided in one embodiment of the present application.

[0023] Figure 3 A schematic structural diagram of a connecting arm assembly provided in one embodiment of the present application.

[0024] Figure 4 A schematic structural diagram of a lower connecting arm assembly in an expanded configuration provided in one embodiment of the present application.

[0025] Figure 5 A schematic diagram of the structure of a positioning block provided in one embodiment of the present application.

[0026] Figure 6 A schematic structural diagram of a sliding support block provided in one embodiment of the present application.

[0027] Figure 7 A schematic diagram of the cooperation between a sliding support block and a sliding groove provided in one embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1. Fixed plate; 2. Connecting arm assembly; 3. Positioning block; 4. Sliding support block; 5. Fixed frame; 6. Fan frame; 11. Articulated seat; 201. First hinged end; 202. Second hinged end; 203. First swinging end; 204. Second swinging end; 21. First arm; 211. First top edge; 212. Second top edge; 213. Articulated portion; 22. Second arm; 23. Third arm; 31. Fixed portion; 32. Abutting portion; 33. Limiting portion; 34. Positioning pin hole; 41. Sliding support body; 42. Protruding edge; 43. Locking hole; 44. Sliding support pin hole; 61. Slide groove; 62. Card edge. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] In this document, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0032] In addition, in this article, directional terms such as "upper" and "lower" are defined relative to the orientation of the structure schematically placed in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to the change of the orientation of the structure.

[0033] Combination Figures 1 to 7 The present application provides a hinge for connecting a fixed frame 5 of a window or door with a sash frame 6 of the window or door.

[0034] Specifically, the hinge includes:

[0035] A fixing plate 1 for being fixedly connected to the fixing frame 5;

[0036] A connecting arm assembly 2 for movably connecting the fixing frame 5 with the sash frame 6, the connecting arm assembly 2 being hinged to the fixing plate 1, the connecting arm assembly 2 comprising a first hinged end 201 and a second hinged end 202 hinged to the fixing plate 1, and a first swinging end 203 and a second swinging end 204 that can swing;

[0037] A positioning block 3 for limiting the relative position between the sash frame 6 and the connecting arm assembly 2, wherein the positioning block 3 is hinged to the first swing end 203, and the positioning block 3 is also fixedly connected to the sash frame 6;

[0038] The sliding block 4 is used to constrain the moving trajectory of the sash frame 6 and provide support. The sliding block 4 is hinged to the second swing end 204 and is also slidably connected to the sash frame 6.

[0039] In the present application, the hinge has an expanded form, a folded form, and an intermediate form in transition between the expanded form and the folded form; when the hinge is in the expanded 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 folded 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 of the swing trajectory between the first position and the second position.

[0040] In conventional door and window hinge structures, a three-way support structure is usually adopted, for example, the hinge is connected to the fixed frame 5 at two points, and another part is connected to the sash frame 6 to form a hinge support. The sash frame 6 can be opened and closed by making one or two points connected to the fixed frame 5 have a sliding design.

[0041] Although this method can achieve a hinged effect, due to the heavy weight of the sash frame 6, it is often necessary to strengthen the structure or material to ensure reliability in use.

[0042] The present application connects the fan frame 6 and the fixed frame 5 respectively through the first hinged end 201, the second hinged end 202, the first swing end 203 and the second swing end 204, forming a hinge structure with four dispersed connection supports. Compared with the traditional hinge structure, it plays a better supporting role and improves the stability and reliability of the overall structure.

[0043] Furthermore, by providing 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 supporting effect and making the movement smoother.

[0044] 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 hinged end 201, 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 hinged end 202, the second end of the second arm 22 is hinged to the arm body of the third arm 23, and the hinge between the second arm 22 and the third arm 23 is close to the first end of the third arm 23.

[0045] In the present application, three support arms are hinged to form a connecting arm assembly 2, which not only provides four supporting endpoints, but also cooperates with each other to form a reliable hinged structure, thereby increasing the service life.

[0046] 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 bent parts.

[0047] In door and window products such as smoke exhaust windows and fire windows, it is often necessary to limit the maximum opening range of the sash frame 6 to meet safety requirements. Traditional hinge structures usually use limit columns, limit blocks and limit grooves or connecting arm components 2 to cooperate, such as setting a limit column in the component connected to the fixed frame 5, and then cooperating with the connecting arm component 2 itself; or setting a limit groove in the component connected to the fixed frame 5, and then cooperating with the limit column or limit block set in the connecting arm component 2 to play a role in limiting the opening range. In this way, during use, due to excessive force or long-term use, the limit part 33 may become loose or worn, resulting in limit failure.

[0048] In order to solve the problems of the prior art, the limiting structure is improved and designed in the present application.

[0049] Combination Figure 3 As shown, in the present application, one side of the arm body of the first arm 21 is provided with a hinge portion 213 protruding outward and used to be hinged to 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 expansion 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 folding range of the connecting arm assembly 2.

[0050] The opening and closing angles can be controlled by the abutment between the second arm 22 and the first arm 21 without the need for setting vulnerable structures such as limit columns, thereby greatly improving reliability and safety.

[0051] In the present 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°.

[0052] like Figure 4As shown, when the hinge has an unfolded configuration, the second arm 22 abuts against the first top edge 211 of the first arm 21, so that the opening angle α of the hinge reaches a maximum angle. In this embodiment, the angle α is 70°. In other embodiments, the angle α may be 60°, 65°, 75° or 80°. The effect of limiting the opening angle α of the present application can be achieved by only controlling the lengths of the first arm 21, the second arm 22 and the third arm 23 and the position of the hinge 213 of the first arm 21.

[0053] Combination Figure 5 As shown, in the present application, the positioning block 3 includes a fixing portion 31 and an abutting portion 32, the abutting portion 32 is connected to one side of the fixing portion 31, the fixing portion 31 is hinged to the second swinging end 204, and the abutting portion 32 is connected to the side of the fan frame 6.

[0054] Specifically, the fixing portion 31 may be provided with a positioning pin hole 34 , and the positioning pin hole 34 is used to penetrate a pin, so that the fixing portion 31 and the second swing end 204 are hingedly connected by the pin.

[0055] In this embodiment, the abutting portion 32 can be fixedly connected to the sash frame 6 by means of rivets. In other embodiments, screws, welding, etc. can also be used for connection and fixation.

[0056] In the present application, a limiting portion 33 is provided to extend and protrude toward the fan frame 6 from the other side of the fixing portion 31 relative to the side connected to the abutting portion 32 , and the limiting portion 33 abuts against the fan frame 6 to limit the movement of the positioning block 3 .

[0057] Specific, combined Figure 5 As shown, the abutment portion 32 and the limiting portion 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 abutment portion 32 and the limiting portion 33 respectively abut the two side edges of the corner of the fan frame 6 to match the positioning block 3 with the corner of the fan frame 6.

[0058] By making the limiting portion 33 protrude toward the sash frame 6 relative to the fixing portion 31 , a space can be left between the fixing portion 31 and the sash frame 6 to accommodate the top end of the pin, thereby providing an assembly space for the pin.

[0059] In this embodiment, the limiting portion 33 can be fixedly connected to the sash frame 6 by means of rivets. In other embodiments, the limiting portion 33 can also be connected and fixed by means of screws, welding, etc.

[0060] Combination Figure 6As shown, in the present application, the sliding support block 4 includes a sliding support body 41 , and at least one side of the sliding support body 41 is provided with a protruding edge 42 extending outward.

[0061] In order to facilitate the sliding of the sliding support block 4, Figure 2 and Figure 7 As shown, in this embodiment, the fan frame 6 is provided with a slide groove 61, and the slide groove 61 accommodates the slide support block 4 and allows the slide support block 4 to slide. The slide groove 61 is provided with a clamping edge 62 that cooperates with the protruding edge 42, and the protruding edge 42 abuts against the clamping edge 62.

[0062] In this embodiment, the slide support body 41 is provided with a slide support pin hole 44 , and the slide support pin hole 44 is used for a pin to pass through, so as to hinge the slide support block 4 with the first swing end 203 .

[0063] During use, when the hinge opens and closes, the connecting arm assembly 2 expands and closes, at which time the sliding support block 4 slides in the sliding groove 61 of the fan frame 6, and the positioning block 3 rotates relatively, thereby achieving opening and closing control and support.

[0064] In actual application scenarios, it is sometimes necessary to fix the sash frame 6 at a desired angle. Figure 6 As shown, in the present application, the sliding block 4 is provided with a locking hole 43 , and the locking hole 43 passes through the sliding block 4 and faces the sash frame 6 .

[0065] Through the setting of the locking hole 43, when the open state of the sash frame 6 needs to be fixed, it is only necessary to use a locking piece that is compatible with the locking hole 43, extend the locking piece through the locking hole 43 and abut against the sash frame 6 to lock the relative sliding of the sliding support block 4 and the sash frame 6, thereby locking the opening and closing of the sash frame 6.

[0066] In this embodiment, the locking hole 43 may be a threaded hole structure, and correspondingly, the locking member may be a bolt.

[0067] Combination Figure 1 As shown, in this embodiment, the fixing plate 1 is provided with at least two hinge seats 11 protruding and extending, and the first hinge end 201 and the second hinge end 202 are respectively hinged to the hinge seats 11. The setting of the hinge seats 11 can provide space for the hinged part of the connecting arm assembly 2 and the fixing plate 1.

[0068] The hinge provided by the implementation method of the present application is introduced in detail above, and the principle and implementation method of the present application are explained by using specific examples. The above description is only used to help understand the method and core mechanism of the present application; at the same time, for general technical personnel in this field, according to the ideas of the present application, there will be changes in the specific embodiments and application scope. In summary, the content of this specification should not be understood as a limitation on the present 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 comprises: A fixing plate used for fixed connection with the fixing frame; A connecting arm assembly used to form an active connection between the fixing frame and the fan frame, the connecting arm assembly being hinged to the fixing plate, the connecting arm assembly comprising a first hinged end and a second hinged end hinged to the fixing plate and a first swinging end and a second swinging end that can swing; a positioning block for limiting the relative positions of the sash frame and the connecting arm assembly, the positioning block being hinged to the first swing end and also fixedly connected to the sash frame; A sliding support block is used to constrain the moving track of the sash frame and provide support. The sliding support block is hinged to the second swing end and is also slidably connected to the sash frame.

2. The hinge according to claim 1, characterized in that: 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 arm body 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 arm body of the third arm, and the hinge between the second arm and the third arm is close to the first end of the third arm.

3. The hinge according to claim 2, characterized in that: A hinge portion protruding outward is provided on one side of the arm body of the first arm and used to be hinged to the first end of the third arm. A first top edge is formed on the outer side of the arm body between the hinge portion and the first swing end, and a second top edge is formed on the outer side of the arm body between the hinge portion and the first hinge end; the first top edge is configured to abut against the second end of the second arm to limit the maximum expansion 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 folding range of the connecting arm assembly.

4. The hinge according to claim 3, characterized in that: The maximum angle formed by the fan frame and the fixing frame is 60°-80°.

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

6. The hinge according to claim 5, characterized in that: The fixing portion is provided with a limiting portion extending and protruding toward the fan frame from the other side of the fixing portion relative to the side connected to the abutting portion. The limiting portion abuts against the fan frame to limit the movement of the positioning block.

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

8. The hinge according to claim 7, characterized in that: The sliding support block is provided with a locking hole, and the locking hole passes through the sliding support block and faces the sash frame.

9. The hinge according to claim 8, characterized in that: The locking hole is a threaded hole structure.

10. The hinge according to claim 1, characterized in that: The fixing plate is protrudingly extended to be provided with at least two hinge seats, and the first hinge end and the second hinge end are respectively hinged to the hinge seats.

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