A lower hinge for a hardware system of a concealed inward-opening top-hung window

Abstract

The present invention discloses a lower hinge for a hardware system of a hidden inward-opening and downward-swinging window, which includes a frame connecting member, a sash connecting member, a connecting rod group connected between the frame connecting member and the sash connecting member, and a height adjusting mechanism. The height adjusting mechanism includes an adjusting cylinder provided on the sash connecting member and a top rod provided at the end of the first connecting rod. The top rod is inserted into the lower end of the adjusting cylinder and rotates relative to the adjusting cylinder. A height adjusting screw is threadedly connected to the upper end of the adjusting cylinder. At the same time, steel balls are provided inside the adjusting cylinder. The steel balls are arranged between the height adjusting screw and the top rod and are in contact with both the height adjusting screw and the top rod. By turning the height adjusting screw and using the steel balls to contact the top rod, the relative height between the first connecting rod and the sash connecting member is adjusted, so as to adjust the relative height between the window sash and the window frame, and thus adjust the airtightness in the height direction.

Description

Technical Field

[0001] The present invention relates to the technical field of building hardware, and particularly relates to a lower hinge for a hidden inward-opening and downward-swinging window hardware system. Background Art

[0002] At present, the lower hinges for the existing inward-opening and downward-swinging window hardware systems in the industry on the market lack an adjustment structure, resulting in insufficient airtightness when the window sash is closed, unsmooth opening and closing, and insufficient load-bearing capacity. At the same time, most of the load-bearing components are made of zinc alloy, and the lack of fire resistance and bearing capacity leads to easy damage, which will cause problems such as easy inclination and insufficient safety when the window sash swings downward and inwards or opens flat. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a lower hinge for a hidden inward-opening and downward-swinging window hardware system with a novel and stable structure and strong adjustability.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a lower hinge for a hidden inward-opening and downward-swinging window hardware system, including a frame connecting member, a sash connecting member, and a connecting rod group connected between the frame connecting member and the sash connecting member. The connecting rod group includes a first connecting rod and a second connecting rod. One end of the first connecting rod is pivotally connected to the sash connecting member, and at the same time, the other end of the first connecting rod is pivotally connected to the frame connecting member and is in sliding fit. One end of the second connecting rod is pivotally connected to the frame connecting member, and at the same time, the other end of the second connecting rod is pivotally connected to the sash connecting member and is in sliding fit. It further includes a height adjustment mechanism. The height adjustment mechanism includes an adjustment cylinder provided on the sash connecting member and a top rod provided at the end of the first connecting rod. The top rod is inserted into the lower end of the adjustment cylinder and rotates relative to the adjustment cylinder. A height adjustment screw is threadedly connected to the upper end of the adjustment cylinder, and at the same time, steel balls are provided inside the adjustment cylinder. The steel balls are arranged between the height adjustment screw and the top rod and are in contact with both the height adjustment screw and the top rod.

[0005] The beneficial effect of the present invention is: the lower hinge of the present invention has a height adjustment mechanism. By turning the height adjustment screw and using the steel balls to contact the top rod, the relative height between the first connecting rod and the sash connecting member can be adjusted, thereby realizing the adjustment of the relative height between the window sash and the window frame, and thus adjusting the airtightness in the height direction. In addition, the connecting rod group can improve the connection stability between the sash connecting member and the frame connecting member.

[0006] Preferably, a first sliding groove is formed on the frame connecting member, and a second sliding groove is formed on the sash connecting member. The first connecting rod is pivotally connected to the first sliding groove and is in sliding fit, and the second connecting rod is pivotally connected to the second sliding groove and is in sliding fit. The first sliding groove can guide the sliding of the pivot point between the first connecting rod and the frame connecting member, and the second sliding groove can guide the sliding of the pivot point between the second connecting rod and the sash connecting member.

[0007] Preferably, a horizontal adjustment mechanism is further included. The horizontal adjustment mechanism includes a connection seat connected to the bottom surface of the fan connection member, a horizontal adjustment seat, and a horizontal adjustment screw threadedly connected between the horizontal adjustment seat and the connection seat. By turning the horizontal adjustment screw, the relative horizontal position between the horizontal adjustment seat and the fan connection member can be driven. Since the horizontal adjustment seat is fixedly connected to the window sash, the relative position between the window sash and the window frame in the left - right direction can be realized, thereby adjusting the airtightness of the window sash.

[0008] Preferably, N annular grooves are formed on the horizontal adjustment screw. At the same time, N limit screws threadedly connected to the horizontal adjustment seat and corresponding to the annular grooves one by one are provided. The limit screws can extend into the annular grooves, thereby axially limiting the horizontal adjustment screw and preventing the horizontal adjustment screw from axially expanding and contracting relative to the horizontal adjustment seat.

[0009] Preferably, a connection screw for fixedly connecting the window sash is threadedly connected to the horizontal adjustment seat. The connection screw can be used to fixedly connect the window sash and the horizontal adjustment seat.

[0010] Preferably, an eccentric rivet is riveted between the first connecting rod and the second connecting rod. By turning the eccentric rivet, the relative position between the first connecting rod and the second connecting rod can be adjusted.

[0011] Preferably, the frame connection member includes a base and a side plate, and the base and the side plate together form an L - shaped structure. The bottom plate of the frame connection member can be fixedly connected to the bottom frame of the window frame, and the side plate of the frame connection member can be fixedly connected to the side frame of the window frame.

[0012] Preferably, spiral plates for connecting the window sash are rotatably connected to both the base and the side plate. The spiral plates can be mutually engaged and buckled with the T - shaped installation groove on the surface of the window frame profile, thereby realizing rapid pre - installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three - dimensional structural schematic diagram of the present invention.

[0014] Figure 2 is an exploded view of the present invention.

[0015] Figure 3 is one of the side cross - sectional views of the present invention.

[0016] Figure 4 is the second side cross - sectional view of the present invention.

[0017] Among them, 1 - frame connecting piece, 11 - first sliding groove, 12 - base, 13 - side plate, 14 - spiral piece, 2 - sash connecting piece, 21 - second sliding groove, 31 - first connecting rod, 32 - second connecting rod, 4 - height adjusting mechanism, 41 - adjusting cylinder, 42 - ejector rod, 43 - height adjusting screw, 44 - steel ball, 5 - horizontal adjusting mechanism, 51 - connecting seat, 52 - horizontal adjusting seat, 53 - horizontal adjusting screw, 531 - annular groove, 54 - limit screw, 55 - connecting screw, 6 - eccentric rivet. Detailed implementation mode

[0018] The technical solution claimed in the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] See Figures 1 to 4 As shown, a lower hinge for a hardware system of a hidden inward-opening and downward-swinging window in this embodiment includes a frame connecting piece 1, a sash connecting piece 2, a connecting rod group connected between the frame connecting piece 1 and the sash connecting piece 2, a height adjusting mechanism 4 and a horizontal adjusting mechanism 5.

[0020] In this embodiment, a first sliding groove 11 is opened on the frame connecting piece 1, and a second sliding groove 21 is opened on the sash connecting piece 2. And the frame connecting piece 1 includes a base 12 and a side plate 13. The base 12 and the side plate 13 together form an L-shaped structure. The frame connecting piece 1 includes a base 12 and a side plate 13. The base 12 and the side plate 13 together form an L-shaped structure. The spiral piece 14 can be cooperatively buckled with the T-shaped installation groove on the surface of the window frame profile, so as to realize rapid pre-installation.

[0021] The connecting rod group includes a first connecting rod 31 and a second connecting rod 32. One end of the first connecting rod 31 is pivotally connected to the sash connecting piece 2, and at the same time, the other end of the first connecting rod 31 is pivotally connected and slidably mated with the first sliding groove 11. One end of the second connecting rod 32 is pivotally connected to the frame connecting piece 1, and at the same time, the other end of the second connecting rod 32 is pivotally connected and slidably mated with the second sliding groove 21. In addition, in this embodiment, an eccentric rivet 6 is riveted between the first connecting rod 31 and the second connecting rod 32. By screwing the eccentric rivet 6, the relative position between the first connecting rod 31 and the second connecting rod 32 can be adjusted.

[0022] The height adjusting mechanism 4 includes an adjusting cylinder 41 arranged on the sash connecting piece 2 and an ejector rod 42 arranged at the end of the first connecting rod 31. The ejector rod 42 is inserted into the lower end of the adjusting cylinder 41 and rotates relative to the adjusting cylinder 41. The upper end of the adjusting cylinder 41 is threadedly connected with a height adjusting screw 43. At the same time, a steel ball 44 is arranged inside the adjusting cylinder 41. The steel ball 44 is arranged between the height adjusting screw 43 and the ejector rod 42 and abuts against both the height adjusting screw 43 and the ejector rod 42.

[0023] The horizontal adjustment mechanism 5 includes a connection seat 51 connected to the bottom surface of the fan connection member 2, a horizontal adjustment seat 52, and a horizontal adjustment screw 53 threadedly connected between the horizontal adjustment seat 52 and the connection seat 51. In this embodiment, a connection screw 55 for fixedly connecting the window sash is threadedly connected to the horizontal adjustment seat 52.

[0024] Two annular grooves 531 are formed on the horizontal adjustment screw 53. At the same time, two limit screws 54 corresponding to the annular grooves 531 one by one are threadedly connected to the horizontal adjustment seat 52. In other embodiments, the number of the annular grooves 531 and the limit screws 54 can be adjusted according to actual needs. The limit screw 54 can extend into the annular groove 531, so as to axially limit the horizontal adjustment screw 53 and prevent the horizontal adjustment screw 53 from axially expanding and contracting relative to the horizontal adjustment seat 52.

[0025] The installation method of the lower hinge in this embodiment is as follows:

[0026] First, install the frame connection member 1 on the window frame. During installation, the spiral piece 14 can be used to cooperate with the T-shaped installation groove on the surface of the window frame profile for snap connection, so as to achieve rapid pre-installation, and the frame connection member 1 is fixedly connected to the window frame through bolts.

[0027] After the installation of the frame connection member 1 is completed, install and connect the fan connection member 2 and the window sash, and at the same time fixedly connect the horizontal adjustment seat 52 to the window sash profile.

[0028] Then, perform airtightness adjustment, including height adjustment and horizontal adjustment. When performing height adjustment, turn the height adjustment screw 43, and use the steel ball 44 to abut against the ejector rod 42 to adjust the relative height between the first connecting rod 31 and the fan connection member 2, so as to adjust the relative height between the window sash and the window frame, and thus adjust the airtightness in the height direction.

[0029] When performing horizontal adjustment, turning the horizontal adjustment screw can drive the relative horizontal position between the horizontal adjustment seat 52 and the fan connection member 2. Since the horizontal adjustment seat 52 is fixedly connected to the window sash, the relative position between the window sash and the window frame in the left-right direction can be realized, so as to adjust the airtightness of the window sash.

[0030] The above embodiments are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the art can make more possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present invention. Therefore, all equivalent changes made according to the idea of the present invention without departing from the content of the technical solution of the present invention should be covered by the protection scope of the present invention.

Claims

1. A lower hinge for a hardware system of a hidden inward-opening and downward-swinging window, comprising a frame connecting member (1), a sash connecting member (2), and a connecting rod group connected between the frame connecting member (1) and the sash connecting member (2). The connecting rod group includes a first connecting rod (31) and a second connecting rod (32). One end of the first connecting rod (31) is pivotally connected to the sash connecting member (2), and at the same time, the other end of the first connecting rod (31) is pivotally connected to the frame connecting member (1) and is in sliding fit. One end of the second connecting rod (32) is pivotally connected to the frame connecting member (1), and at the same time, the other end of the second connecting rod (32) is pivotally connected to the sash connecting member (2) and is in sliding fit. It is characterized in that: It further includes a height adjustment mechanism (4). The height adjustment mechanism (4) includes an adjustment cylinder (41) provided on the fan connecting member (2) and a push rod (42) provided at the end of the first connecting rod (31). The push rod (42) is inserted into the lower end of the adjustment cylinder (41) and rotates relative to the adjustment cylinder (41). The upper end of the adjustment cylinder (41) is threadedly connected with a height adjustment screw (43). At the same time, steel balls (44) are arranged inside the adjustment cylinder (41). The steel balls (44) are arranged between the height adjustment screw (43) and the push rod (42) and are in contact with both the height adjustment screw (43) and the push rod (42).

2. The lower hinge for a hardware system of a hidden inward-opening and downward-swinging window according to claim 1, characterized in that: A first sliding groove (11) is formed on the frame connecting member (1), and a second sliding groove (21) is formed on the fan connecting member (2). The first connecting rod (31) is pivotally connected and slidably engaged with the first sliding groove (11), and the second connecting rod (32) is pivotally connected and slidably engaged with the second sliding groove (21).

3. The lower hinge for a hardware system of a hidden inward-opening and downward-swinging window according to claim 1, characterized in that: It further includes a horizontal adjustment mechanism (5). The horizontal adjustment mechanism (5) includes a connecting seat (51), a horizontal adjustment seat (52) connected to the bottom surface of the fan connecting member (2), and a horizontal adjustment screw (53) threadedly connected between the horizontal adjustment seat (52) and the connecting seat (51).

4. The lower hinge for a hardware system of a hidden inward-opening and downward-swinging window according to claim 3, characterized in that: N annular grooves (531) are formed on the horizontal adjustment screw (53). At the same time, N limit screws (54) corresponding to the annular grooves (531) one by one are threadedly connected to the horizontal adjustment seat (52).

5. The lower hinge for a hardware system of a hidden inward-opening and downward-swinging window according to claim 3, characterized in that: A connecting screw (55) for fixedly connecting the window sash is threadedly connected to the horizontal adjustment seat (52).

6. The lower hinge for a hardware system of a hidden inward-opening and downward-swinging window according to claim 1, characterized in that: An eccentric rivet (6) is riveted between the first connecting rod (31) and the second connecting rod (32).

7. The lower hinge for a hardware system of a hidden inward-opening and downward-swinging window according to claim 1, characterized in that: The frame connecting member (1) includes a base (12) and a side plate (13). The base (12) and the side plate (13) together form an L-shaped structure.

8. The lower hinge for a hardware system of a hidden inward-opening and downward-swinging window according to claim 7, characterized in that: Spiral plates (14) for connecting the window sash are rotatably connected to both the base (12) and the side plate (13).

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