Window opening limiting device

Abstract

The utility model relates to the technical field of window limiting devices, and discloses a window opening limiting device which comprises a window frame fixing rail, a fixed supporting cantilever, a movable supporting cantilever and a window sash fixing blade, a limiting column is arranged on the outer surface of the top of a sliding block, and a first spring is fixedly connected into a circular groove; a plurality of second limiting holes arranged in a circumferential array mode are formed in the outer surface of the limiting column, a blocking piece is fixedly connected to the outer surface of the limiting column, and a blocking rod is fixedly connected to the surface of the end, close to the limiting column, of the fixed supporting cantilever. When the window sash needs to be cleaned, limiting of a limiting column is relieved, the limiting column is pressed downwards, so that a first spring is compressed, the limiting column is limited in cooperation with a pull rod, a second spring and a limiting block, a blocking piece is located at the position where a blocking rod cannot be blocked, and therefore the window sash can be pushed open to the maximum angle; compared with a detachable limiting window support in the prior art, the device is simple in structure and easy and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of window limit devices, in particular to a window opening limit device. Background Art

[0002] The opening or closing of the window sash is mainly achieved by the sliding support hinge installed between the window frame and the window sash. The sliding support hinge is a motion mechanism assembled by a slide rail, a slider and a number of supporting arms. When the window sash is opened, the window sash drives the other supporting arms to move in the opening direction through the supporting arm installed on the top of the window sash, while driving the slider to slide from one end of the slide rail to the other end. The window opening limit device is installed to limit the opening degree of the window sash to prevent children from falling from the window. At the same time, it is to prevent the opened window sash from being suddenly closed and damaged when the wind blows. However, since the window is opened to a small extent, it is impossible to clean the outside of the window.

[0003] In order to solve the above problems, there are currently a variety of detachable limited window stays on the market, such as lockable and sliding elastic buckle types. The short support arm is separated from the support arm by unlocking with a key or pulling the sliding elastic buckle, so that the opening of the window sash is not restricted by the limited window stay. However, since the structure of the lockable accessories or sliding elastic buckle is relatively complex, and the opening degree of the window sash is limited to a small range and the space is small, not only the cost of producing the lockable accessories or sliding elastic buckle is high, but also the operation is difficult. Therefore, a window opening limit device is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a window opening limit device to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a window opening limit device, comprising a window frame fixing rail, a fixed support cantilever, a movable support cantilever and a window sash fixing leaf, the surface of the window frame fixing rail is provided with a sliding block, the top outer surface of the sliding block is provided with a limiting column, the outer surface of the sliding block is provided with a circular groove, the inside of the circular groove is fixedly connected to a first spring, the outer surface of the limiting column is provided with a plurality of second limiting holes arranged in a circular array, the outer surface of the limiting column is fixedly connected to a blocking sheet, and the surface of the fixed support cantilever close to one end of the limiting column is fixedly connected to a blocking rod.

[0006] Furthermore, the top outer surface of the first spring is fixedly connected to a support plate, the limiting column is rotatably connected to the outer surface of the support plate, the outer surface of the limiting column is provided with a plurality of first limiting holes in a circular array, and a plurality of the second limiting holes are arranged above the plurality of first limiting holes.

[0007] Furthermore, a pull rod is movably inserted into the front outer surface of the sliding block, and the pull rod movably passes through the front outer surface of the window frame fixing cabinet. The outer surface of the pull rod near the limit column is fixedly connected to the limit block, and the outer surface of the limit block is fixedly connected to the second spring. A rectangular groove is opened inside the sliding block, and the other end of the second spring is fixedly connected to the inner wall of the rectangular groove inside the sliding block.

[0008] Furthermore, the movable support cantilever is movably inserted into the inner surface of the fixed support cantilever, the outer surface of the fixed support cantilever is provided with a plurality of through holes arranged in a linear array, the outer surface of the movable support cantilever is provided with a groove, the interior of the groove is fixedly connected with a third spring, and a limiting ball is provided on the top outer surface of the third spring.

[0009] Furthermore, a screw hole is provided on the top outer surface of the slider, a screw is connected to the internal thread of the screw hole, two swivels are sleeved on the outer surface of the screw, the fixed support cantilever is rotatably sleeved on the outer surface of the screw, and the two swivels are respectively located above and below the fixed support cantilever.

[0010] Furthermore, the window sash fixing leaf is arranged on the outer surface of the movable supporting cantilever by riveting, and the outer surface of the window sash fixing leaf is provided with two fixing waist holes.

[0011] Furthermore, friction gaskets are arranged between the two rotating rings and the fixed cantilever arms, and the two friction gaskets are sleeved on the outer surface of the screw.

[0012] Furthermore, the limiting ball may be a steel ball, and the limiting ball is matched with the groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The window opening limit device, when the window sash needs to be cleaned, the limit column is released, and the limit column is pressed downward to compress the first spring, and the limit column is limited by the pull rod, the second spring and the limit block, so that the blocking piece is in a position where it cannot block the blocking rod, so that the window sash can be pushed open to the maximum angle. Compared with the detachable limit window support in the prior art, the device has a simple structure and is easy to operate.

[0015] 2. The window opening limit device, by rotating the rotating column on the surface of the supporting plate, cooperates with the pull rod, the second spring and the limit block to limit the limit column, thereby adjusting the position of the blocking piece, and then when the blocking piece blocks the blocking rod, the blocking rod can be rotated to different angles, thereby adjusting the angle limit that the window sash can open. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a rear view structural diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the limit column and its related structures of the utility model;

[0019] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0020] Figure 5 It is an exploded schematic diagram of the movable cantilever and the limiting ball and related structures of the utility model;

[0021] Figure 6 It is an exploded schematic diagram of the fixed support cantilever, swivel and related structures of the utility model.

[0022] In the figure: 1. Window frame fixing rail; 2. Fixed supporting cantilever; 3. Movable supporting cantilever; 4. Window sash fixing leaf; 5. Limiting column; 6. Blocking piece; 7. First spring; 8. Support plate; 9. First limiting hole; 10. Second limiting hole; 11. Pull rod; 12. Second spring; 13. Limiting block; 14. Through hole; 15. Groove; 16. Third spring; 17. Limiting ball; 18. Swivel; 19. Screw; 20. Blocking rod; 21. Friction gasket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] Please refer to Figure 1-Figure 6The utility model provides a technical solution: a window opening limit device, including a window frame fixing rail 1, a fixed supporting cantilever 2, a movable supporting cantilever 3 and a window sash fixing leaf 4. A sliding block is arranged on the surface of the window frame fixing rail 1, and a limiting column 5 is arranged on the top outer surface of the sliding block. A circular groove is provided on the outer surface of the sliding block, and a first spring 7 is fixedly connected to the inside of the circular groove. A plurality of second limiting holes 10 arranged in a circular array are provided on the outer surface of the limiting column 5, and a blocking piece 6 is fixedly connected to the outer surface of the limiting column 5. A blocking rod 20 is fixedly connected to the surface of one end of the fixed supporting cantilever 2 near the limiting column 5. In this embodiment, the limiting column 5 is pressed downward to compress the first spring 7, so that the top of the blocking piece 6 moves to a position where the blocking rod 20 cannot be blocked. At this time, the second limiting hole 10 corresponds to the limiting block 13, so that the limiting block 13 is inserted into the second limiting hole 10 to limit the limiting column 5. At this time, the window sash can be pushed open to a larger angle.

[0026] The top outer surface of the first spring 7 is fixedly connected to the support plate 8, the limit column 5 is rotatably connected to the outer surface of the support plate 8, the outer surface of the limit column 5 is provided with a plurality of first limit holes 9 in a circular array, and a plurality of second limit holes 10 are arranged above the plurality of first limit holes 9. In this embodiment, the limit column 5 is rotated to rotate on the support plate 8, and the limit column 5 drives the baffle 6 to rotate, adjusting the position of the baffle 6 so that the position of the baffle rod 20 when in contact with the baffle 6 is different, thereby adjusting the angle limit of the opening of the sash window.

[0027] A pull rod 11 is movably inserted into the front outer surface of the slider, and the pull rod 11 movably passes through the front outer surface of the window frame fixing cabinet. The pull rod 11 is fixedly connected to a limit block 13 on the outer surface near the limit column 5, and a second spring 12 is fixedly connected to the outer surface of the limit block 13. A rectangular groove is provided inside the slider, and the other end of the second spring 12 is fixedly connected to the inner wall of the rectangular groove inside the slider. In this embodiment, pulling the pull rod 11 causes the second spring 12 to deform, and causes the limit block 13 to detach from the first limit hole 9 or the second limit hole 10, thereby releasing the limit on the limit column 5. When the force on the pull rod 11 stops, the limit block 13 is driven to insert into the first limit hole 9 or the second limit hole 10 under the elastic force of the second spring 12, thereby limiting the limit column 5.

[0028] The movable supporting cantilever 3 is movably inserted into the inner surface of the fixed supporting cantilever 2, and the outer surface of the fixed supporting cantilever 2 is provided with a plurality of through holes 14 arranged in a linear array, and the outer surface of the movable supporting cantilever 3 is provided with a groove 15, and the interior of the groove 15 is fixedly connected with a third spring 16, and the top outer surface of the third spring 16 is provided with a limiting ball 17. In this embodiment, during the opening process of the window sash, the movable supporting cantilever 3 slides inside the fixed supporting cantilever 2, and the side wall of the fixed supporting cantilever 2 squeezes the limiting ball 17, so that the third spring 16 is compressed. When the limiting ball 17 contacts the through hole 14, the elastic force of the third spring 16 causes the limiting ball 17 to be inserted into the through hole 14, thereby limiting the fixed supporting cantilever 2 and the movable supporting cantilever 3.

[0029] A screw hole is provided on the top outer surface of the slider, and a screw 19 is connected to the internal thread of the screw hole. Two swivels 18 are sleeved on the outer surface of the screw 19. The fixed support arm 2 is rotatably sleeved on the outer surface of the screw 19. The two swivels 18 are respectively located above and below the fixed support arm 2. In this embodiment, the friction between the swivel 18 and the fixed support arm 2 is adjusted by controlling the tightness of tightening the screw 19.

[0030] The window sash fixing leaf 4 is riveted to the outer surface of the movable supporting cantilever 3 , and two fixing waist holes are provided on the outer surface of the window sash fixing leaf 4 . In this embodiment, the window sash is fixed to the window sash fixing leaf 4 through the fixing waist holes.

[0031] Friction pads 21 are provided between the two swivels 18 and the fixed cantilever arms. The two friction pads 21 are sleeved on the outer surface of the screw 19. In this embodiment, the friction force between the conversion and fixed cantilever arms 2 is increased by providing the friction pads 21.

[0032] The limiting ball 17 can be a steel ball, which is compatible with the groove 15. In this embodiment, the limiting ball 17 can also be a spherical block with other spherical surfaces. When the limiting ball 17 contacts the fixed support cantilever 2, it can squeeze the limiting ball 17 to compress the third spring 16.

[0033] Working principle: When the utility model is in use, the window frame fixing rail 1 is fixed on the window frame, and the window sash is fixed on the window sash fixing leaf 4. When the window needs to be opened, the window sash is pushed, so that the window sash drives the window sash fixing leaf 4, so that the movable support cantilever 3 and the fixed support cantilever 2 rotate. In the process of opening the window sash, the movable support cantilever 3 slides inside the fixed support cantilever 2, and the side wall of the fixed support cantilever 2 squeezes the limiting ball 17, so that the third spring 16 is compressed. When the limiting ball 17 contacts the through hole 14, the elastic force of the third spring 16 causes the limiting ball 17 to be inserted into the through hole 14, so as to limit the fixed support cantilever 2 and the movable support cantilever 3. When the blocking rod 20 rotates to the position in contact with the blocking plate 6, the blocking plate 6 blocks the blocking rod 20, so that the opening angle of the window sash reaches the limit value. When the window sash needs to be cleaned, the window sash is opened to a certain angle, and the pull rod 11 is pulled. The pull rod 11 drives the limit block 13 to disengage from the inside of the first limit hole 9, and the limit column 5 is pressed downward to compress the first spring 7, so that the top of the blocking plate 6 moves to a position where it cannot block the blocking rod 20. At this time, the second limit hole 10 corresponds to the limit block 13, so that the limit block 13 is inserted into the second limit hole 10 to limit the limit column 5. At this time, the window sash can be pushed open to a larger angle.

[0034] The opening angle limit of the window sash can be adjusted according to the actual needs of the user. At this time, the pull rod 11 is pulled, and the pull rod 11 drives the limit block 13 to disengage from the inside of the first limit hole 9, and the limit column 5 is rotated to make the limit column 5 rotate on the support plate 8. The limit column 5 drives the baffle 6 to rotate, and the position of the baffle 6 is adjusted. The other first limit hole 9 is rotated to the position corresponding to the limit block 13, and the force on the pull rod 11 is stopped. Under the elastic force of the second spring 12, the limit block 13 is inserted into the first limit hole 9, and the limit column 5 is limited, thereby adjusting the position of the baffle 6, and then adjusting the angle limit of the window opening.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A window opening limit device, comprising a window frame fixing rail (1), a fixed support cantilever (2), a movable support cantilever (3) and a window sash fixing leaf (4), characterized in that: The surface of the window frame fixing rail (1) is provided with a slider, the top outer surface of the slider is provided with a limiting column (5), the outer surface of the slider is provided with a circular groove, the interior of the circular groove is fixedly connected with a first spring (7), the outer surface of the limiting column (5) is provided with a plurality of second limiting holes (10) arranged in a circular array, the outer surface of the limiting column (5) is fixedly connected with a blocking plate (6), and the surface of one end of the fixed support cantilever (2) close to the limiting column (5) is fixedly connected with a blocking rod (20).

2. The window opening limit device according to claim 1, characterized in that: The top outer surface of the first spring (7) is fixedly connected to a support plate (8), the limiting column (5) is rotatably connected to the outer surface of the support plate (8), the outer surface of the limiting column (5) is provided with a plurality of first limiting holes (9) in a circular array, and a plurality of the second limiting holes (10) are arranged above the plurality of first limiting holes (9).

3. The window opening limit device according to claim 1, characterized in that: A pull rod (11) is movably inserted into the front outer surface of the slider, and the pull rod (11) movably passes through the front outer surface of the window frame fixing cabinet. The outer surface of the pull rod (11) close to the limit column (5) is fixedly connected to a limit block (13), and the outer surface of the limit block (13) is fixedly connected to a second spring (12). A rectangular groove is opened inside the slider, and the other end of the second spring (12) is fixedly connected to the inner wall of the rectangular groove inside the slider.

4. The window opening limit device according to claim 1, characterized in that: The movable support cantilever (3) is movably inserted into the inner surface of the fixed support cantilever (2), the outer surface of the fixed support cantilever (2) is provided with a plurality of through holes (14) arranged in a linear array, the outer surface of the movable support cantilever (3) is provided with a groove (15), the interior of the groove (15) is fixedly connected with a third spring (16), and the top outer surface of the third spring (16) is provided with a limiting ball (17).

5. The window opening limit device according to claim 1, characterized in that: A screw hole is provided on the top outer surface of the slider, a screw (19) is connected to the inner thread of the screw hole, two swivels (18) are sleeved on the outer surface of the screw (19), the fixed support arm (2) is rotatably sleeved on the outer surface of the screw (19), and the two swivels (18) are respectively located above and below the fixed support arm (2).

6. The window opening limit device according to claim 1, characterized in that: The window sash fixing leaf (4) is arranged on the outer surface of the movable supporting cantilever (3) by riveting, and the outer surface of the window sash fixing leaf (4) is provided with two fixing waist holes.

7. The window opening limit device according to claim 5, characterized in that: Friction gaskets (21) are arranged between the two rotating rings (18) and the fixed cantilever arms, and the two friction gaskets (21) are sleeved on the outer surface of the screw (19).

8. The window opening limit device according to claim 4, characterized in that: The limiting ball (17) can be a steel ball, and the limiting ball (17) is matched with the groove (15).

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