A hinge for doors and windows

Abstract

The utility model relates to a door and window hinge, including base, drag board, first connecting rod, second connecting rod and branch, one end of base is provided with the sliding slot, be equipped with the locating groove in the sliding slot, the bottom fixed of drag board is equipped with the sliding block, the sliding block is established in the sliding slot, the cooperation between drag board through the sliding block and the sliding slot, slidingly sets up on the base, still be equipped with the locating pin of up and down movement on the drag board, the bottom of locating pin is equipped with the locating block with the cooperation of locating groove, one end of first connecting rod is hinged with drag board, the other end is hinged with branch, one end of second connecting rod is hinged with base, the other end is hinged with branch. The utility model sets up locating pin and locating groove on drag board and sliding slot respectively, realizes the locking function through the clamping cooperation between locating pin and locating groove.

Description

Technical Field

[0001] This utility model relates to a door and window hinge, belonging to the technical field of door and window hinges. Background Technology

[0002] Most existing aluminum alloy windows are fixed to the window frame using hinges. A typical hinge includes a track, a slider, and a support arm. The track is installed within the window frame bracket, the slider is installed within the track, and one end of the support arm connects to the slider, while the other end connects to the window sash bracket. Moving the window moves the hinges, opening the window inwards or outwards to a certain angle and then locking it in place. Currently, the most common method for locking window hinges relies on adjusting the tightness of screws to change the friction between the slider and the track. Therefore, the tightness of the screws directly affects the locking effect. Strong winds can also cause the window to close abnormally; or, if a child accidentally operates the window, opening the hinges and opening the window sash, it can easily lead to a fall hazard.

[0003] Therefore, the research objective of this utility model is to provide a door and window hinge with a locking function. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this utility model provides a door and window hinge, which features a positioning pin and a positioning groove on the slide plate and the sliding track, respectively. The locking function is achieved through the locking engagement between the positioning pin and the positioning groove.

[0005] To solve the problems of the existing technology, the technical solution adopted by this utility model is as follows: A door and window hinge includes a base, a slide plate, a first connecting rod, a second connecting rod, and a support arm. One end of the base has a sliding groove, and the sliding groove contains a positioning groove. A slider is fixedly mounted on the bottom of the slide plate, and the slider slides within the sliding groove. The slide plate is slidably mounted on the base through the cooperation between the slider and the sliding groove. The slide plate also has a vertically movable positioning pin, the bottom of which has a positioning block that mates with the positioning groove. One end of the first connecting rod is hinged to the slide plate, and the other end is hinged to the support arm. One end of the second connecting rod is hinged to the base, and the other end is hinged to the support arm.

[0006] Furthermore, the positioning groove is provided in several groups, and the several groups of positioning grooves are arranged in the slide groove, wherein the inner diameter of the positioning groove is larger than the inner diameter of the slide groove.

[0007] Furthermore, a pin seat is fixedly provided at the bottom of the slide plate. The pin seat is located below the positioning pin, and a spring is provided between the pin seat and the positioning pin to push the positioning pin to move upward.

[0008] Furthermore, the positioning pin has an internal cavity for mounting the spring, and the pin seat has a groove for limiting the mounting of the bottom end of the spring.

[0009] Furthermore, the slide plate is provided with a circular channel for the positioning pin to pass through, and a first slot and a second slot are provided side by side on one side of the channel, with the top of the first slot being higher than the top of the second slot; a locking block is provided on one side of the positioning pin to cooperate with the first slot and the second slot.

[0010] Furthermore, when the card block is inserted into the first card slot, the positioning block is inserted into the positioning groove; when the card block is inserted into the second card slot, the positioning block moves downwards out of the positioning groove.

[0011] Furthermore, a clamping plate is fixedly connected to the bottom of the slide plate, the clamping plate is located below the slider, and the top of the clamping plate abuts against the bottom of the base.

[0012] Furthermore, a third link is provided between the first link and the second link, one end of the third link being hinged to the base and the other end being hinged to the first link.

[0013] Furthermore, the base is provided with a limiting groove at the end away from the slide plate, and the support arm is provided with a limiting part that cooperates with the limiting groove at one end.

[0014] The beneficial effects of this utility model are: 1. Positioning pins and positioning grooves are respectively set on the slide plate and the sliding groove. The locking function is realized through the locking cooperation between the positioning pins and the positioning grooves; 2. When the locking block is inserted into the second locking groove, the positioning block disengages downward from the positioning groove, so that the hinge is in the normally open state and does not have the locking function. When the locking block is inserted into the first locking groove, the positioning block is inserted into the positioning groove, realizing the locking function. It can be adapted to different occasions and improves the market competitiveness of the product; 3. When the hinge is closed, the cooperation between the limiting groove and the limiting part can make the position of the arm relative to the base more accurate when closed, so as to make the closing position of the window sash more accurate. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0016] Figure 2 This is the second structural schematic diagram of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the base of this utility model.

[0018] Figure 4 This is one of the partial structural schematic diagrams of this utility model.

[0019] Figure 5 This is the second partial structural schematic diagram of this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of the slide of this utility model.

[0021] Figure 7 This is the third partial structural schematic diagram of this utility model.

[0022] Figure 8 This is a schematic diagram of the positioning pin of this utility model.

[0023] Figure 9 This is a schematic diagram of the pin seat of this utility model.

[0024] The components include: base 1, slide plate 2, first connecting rod 3, second connecting rod 4, support arm 5, slide groove 101, positioning groove 102, slider 201, positioning pin 6, positioning block 601, pin seat 7, spring 8, receiving cavity 602, groove 701, channel 202, first slot 203, second slot 204, locking block 603, clamping plate 9, third connecting rod 10, limiting groove 103, and limiting part 501. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the following description is provided in conjunction with the appendix. Figure 1-9 Further analysis of this utility model is then conducted.

[0026] like Figure 1-9 As shown, a door and window hinge includes a base 1, a slide plate 2, a first connecting rod 3, a second connecting rod 4, and a support arm 5. The base 1 is fixedly installed on the window frame, and the support arm 5 is fixedly installed on the window sash. One end of the base 1 has a sliding groove 101, and the sliding groove 101 has a positioning groove 102. The bottom of the slide plate 2 is fixedly provided with a slider 201, which slides within the sliding groove 101. The slide plate 2 is slidably mounted on the base 1 through the cooperation between the slider 201 and the sliding groove 101. The slide plate 2 is also provided with a positioning pin 6 that moves up and down. The bottom of the positioning pin 6 has a positioning block 601 that cooperates with the positioning groove 102. One end of the first connecting rod 3 is hinged to the slide plate 2, and the other end is hinged to the support arm 5. One end of the second connecting rod 4 is hinged to the base 1, and the other end is hinged to the support arm 5, forming a commonly used three-bar hinge structure.

[0027] In this embodiment, preferably, the positioning groove 102 is provided in several groups, and the several groups of positioning grooves 102 are arranged in the slide groove 101. The inner diameter of the positioning groove 102 is larger than the inner diameter of the slide groove 101. Each group of positioning grooves 102 corresponds to a different opening angle of the window sash and is locked in place with the positioning block 601 on the positioning pin 6 to realize the locking function of the window sash at different opening angles.

[0028] In this embodiment, preferably, a pin seat 7 is also fixedly provided at the bottom of the slide plate 2. The pin seat 7 is located below the positioning pin 6. A spring 8 is provided between the pin seat 7 and the positioning pin 6 to push the positioning pin 6 to move upward. When the positioning block 601 moves to the bottom of the positioning groove 102, the positioning pin 6 moves upward under the elastic force of the spring 8, so that the positioning block 601 is locked into the positioning groove 102, thereby locking the slide plate 2 and thus locking the window sash, making the window sash unable to be opened or closed.

[0029] In this embodiment, preferably, the positioning pin 6 has a cavity 602 for installing the spring 8 inside, and the pin seat 7 has a groove 701 for limiting the installation of the bottom end of the spring 8.

[0030] In this embodiment, preferably, the slide plate 2 is provided with a circular channel 201 through which the positioning pin 6 passes. A first slot 203 and a second slot 204 are provided side by side on one side of the channel 201. The top of the first slot 203 is higher than the top of the second slot 204. A locking block 603 is provided on one side of the positioning pin 6 to cooperate with the first slot 203 and the second slot 204.

[0031] In this embodiment, preferably, when the locking block 603 is inserted into the first locking slot 203, the positioning block 601 is inserted into the positioning groove 102. At this time, the sliding plate 2 is in a locked state, and the window sash cannot be opened or closed. When the locking block 603 is inserted into the second locking slot 204, the positioning block 601 moves downward away from the positioning groove 102. At this time, the sliding plate 2 is in a normally open state, and its sliding is not affected by the positioning block 601 and the positioning groove 102. The window sash can be opened or closed freely.

[0032] In this embodiment, preferably, a clamping plate 9 is also fixedly connected to the bottom of the slide plate 2. The clamping plate 9 is located below the slider 201, and the top of the clamping plate 9 abuts against the bottom of the base 1. The function of the clamping plate 9 is to support and limit the sliding of the slide plate 2 and prevent the slide plate 2 from falling off the base 1.

[0033] In this embodiment, preferably, a third link 10 is provided between the first link 3 and the second link 4. One end of the third link 10 is hinged to the base 1, and the other end is hinged to the first link 3, forming a commonly used four-bar linkage structure, which further improves the structural strength of the hinge.

[0034] In this embodiment, preferably, the end of the base 1 away from the slide plate 2 is also provided with a limiting groove 103, and one end of the support arm 5 is provided with a limiting part 501 that cooperates with the limiting groove 103. When the hinge is closed, the cooperation between the limiting groove 103 and the limiting part 501 can make the position of the support arm 5 relative to the base 1 more accurate when closed, thereby making the closing position of the window sash more accurate.

[0035] This utility model can be used in three states: First state: Manually press the positioning pin 6 to move it downward, causing the positioning block 601 to move downward and disengage from the positioning groove 102. After pressing it down into place, rotate the positioning pin 6 to rotate the locking plate 603 to the corresponding position of the second locking groove 204. Then release the positioning pin 6 so that it moves upward under the elastic force of the spring 8, causing the locking plate 603 to move upward and insert into the second locking groove 204. At this time, the sliding plate 2 is in the normally open state, that is, the positioning block 601 is always below the positioning groove 102 and cannot move upward and lock into the positioning groove 102 under the limiting action of the second locking groove 204. This makes the sliding of the sliding plate 2 unaffected by the positioning block 601 and the positioning groove 102, and the window sash can be opened or closed freely. Second state: Manually press the positioning pin 6 in the first state downwards to move the card plate 603 downwards and disengage it from the second card slot 204. After pressing it down into place, rotate the positioning pin 6 to rotate the card plate 603 to the corresponding position in the first card slot 203. Then release the positioning pin 6 so that it moves upwards under the elastic force of the spring 8, causing the card plate 603 to move upwards and insert into the first card slot 203. At the same time, the positioning block 601 also moves upwards and inserts into the positioning groove 102. At this time, the sliding plate 2 is in the locked state, and the window sash cannot be opened or closed. Third state: Manually press down the positioning pin 6 in the second state to move it downwards, causing the locking plate 603 to move downwards and disengage from the first locking groove 203. At the same time, move the positioning block 601 downwards to disengage from the positioning groove 102. Close or open the window sash to move the sliding plate 2, shifting the positioning block 601 below the positioning groove 102. At this time, the positioning block 601 cannot move upwards under the limiting action of the sliding groove 101, allowing the window sash to be closed or opened. When the positioning block 601 moves to the next positioning groove 102, the sliding groove 101 no longer limits the positioning block 601. The positioning pin 6 moves upwards under the elastic force of the spring 8, causing the positioning block 601 to move upwards and insert into the positioning groove 102. At this time, the sliding plate 2 is in a locked state, and the window sash cannot be opened or closed. If it is necessary to adjust the opening angle of the window sash or close the window sash, the positioning pin 6 needs to be pressed down to move the positioning block 601 downwards and disengage from the positioning groove 102, allowing the sliding plate 2 to move to adjust the opening angle of the window sash or close the window sash.

[0036] The technical solutions provided in this application have been described in detail above. The embodiments used in this document illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods 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 door and window hinge, characterized in that: The device includes a base, a slide plate, a first connecting rod, a second connecting rod, and a support arm. One end of the base has a sliding groove with a positioning groove inside. A slider is fixedly mounted on the bottom of the slide plate, and the slider slides within the sliding groove. The slide plate is slidably mounted on the base through the cooperation between the slider and the sliding groove. The slide plate also has a vertically movable positioning pin, the bottom of which has a positioning block that mates with the positioning groove. One end of the first connecting rod is hinged to the slide plate, and the other end is hinged to the support arm. One end of the second connecting rod is hinged to the base, and the other end is hinged to the support arm.

2. A door and window hinge according to claim 1, characterized in that: The positioning groove is provided in several groups, and the several groups of positioning grooves are arranged in the slide groove. The inner diameter of the positioning groove is larger than the inner diameter of the slide groove.

3. A door and window hinge according to claim 1, characterized in that: The bottom of the slide plate is also fixedly provided with a pin seat, which is located below the positioning pin. A spring is provided between the pin seat and the positioning pin to push the positioning pin to move upward.

4. A door and window hinge according to claim 3, characterized in that: The locating pin has an internal cavity for mounting the spring, and the pin seat has a groove for limiting the installation of the bottom end of the spring.

5. A door and window hinge according to claim 1, characterized in that: The slide plate is provided with a circular channel for the positioning pin to pass through. A first slot and a second slot are provided side by side on one side of the channel. The top of the first slot is higher than the top of the second slot. A locking block is provided on one side of the positioning pin to cooperate with the first slot and the second slot.

6. A door and window hinge according to claim 5, characterized in that: When the card block is inserted into the first card slot, the positioning block is inserted into the positioning groove; when the card block is inserted into the second card slot, the positioning block moves downwards out of the positioning groove.

7. A door and window hinge according to claim 1, characterized in that: A clamp is also fixedly connected to the bottom of the slide plate. The clamp is located below the slider, and the top of the clamp abuts against the bottom of the base.

8. A door and window hinge according to claim 1, characterized in that: A third link is provided between the first link and the second link, one end of the third link is hinged to the base, and the other end is hinged to the first link.

9. A door and window hinge according to claim 1, characterized in that: The base is provided with a limiting groove at the end away from the slide plate, and the support arm is provided with a limiting part that cooperates with the limiting groove at one end.

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