CN219138729U - a wind brace - Google Patents

Abstract

The utility model discloses a wind brace, which comprises a first component and a second component which are respectively connected with a window frame and a window sash, wherein the first component comprises a shell, a first rack, a second rack, a gear and a driving component, the shell is fixedly connected with the window frame or the window sash, the connecting rod and the gear can synchronously move along the length direction of the shell relative to the shell, the first rack and the second rack extend along the length direction of the shell, the gear is positioned between the first rack and the second rack, the second rack is meshed with the gear, and the driving component is used for driving the first rack to be meshed with or separated from the gear. When the gear is engaged with the first rack and the second rack at the same time, the gear is in a locked state and cannot rotate and move along the length direction of the shell, and at the moment, the connecting rod cannot move along the length direction of the shell when the gear is locked due to synchronous movement of the connecting rod and the gear, so that the opening angle of the window sash is locked.

Description

a wind brace

technical field

The utility model relates to the field of door and window hardware accessories, in particular to a wind brace.

Background technique

In the door and window industry, many users do not choose limit wind braces when configuring doors and windows. It is easy to damage the door and window hardware (hinge or hinge) when there is strong wind or sudden rapid opening and closing, which will cause unnecessary personal injury. Safety issues; most of the existing limit wind braces on the market are adjusted by screwing, increasing or reducing friction to achieve arbitrary positioning and limit the maximum opening angle. This method has two obvious disadvantages: the adjustment screw adds It is easy to dislocate when there is a large friction force, and the rubber parts on both sides cannot be opened, that is, the adjustment screw cannot be used for adjustment, and the work fails; when the installer forgets to adjust the positioning screw, the function of the product itself will be lost, and the positioning wind support cannot be achieved role.

The Chinese patent with the publication number CN215056344U discloses a clutch-type wind brace on 2021-12-07, including a first wind brace, a second wind brace, and a third wind brace, and the two ends of the second wind brace pass through The pin shafts are respectively rotatably connected to the first wind strut and the third wind strut, and the first wind strut and the second wind strut are located at the rotational connection with a rotation limiting structure; the third wind strut is far away from the pin shaft. One end is provided with a mounting hole for fixing in the middle of the lower skin of the window frame; it also includes a wind brace sleeve matching the first wind brace, and the pin shaft is provided with a set for the first wind brace and the second wind brace to maintain a certain For the torsion spring in the unfolded state, the specific unfolded state is that after the first wind strut is separated from the wind strut sleeve, it always maintains a corresponding specific state. However, the above-mentioned wind brace also has the problem of difficulty in use and inconvenient operation.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a wind brace with a novel and reliable structure that can be locked and unlocked through a clutch mechanism.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a wind brace, including a first assembly for respectively connecting the window frame and a window sash, a second assembly, and two ends respectively hinged with the first assembly and the second assembly The connecting rod, the first assembly includes a housing, a first rack, a second rack, a gear and a drive assembly, the housing is fixedly connected to the window frame or sash, and the connecting rod and the gear can be opposite The housing moves synchronously along the length direction of the housing, the first rack and the second rack both extend along the length direction of the housing, the gear is located between the first rack and the second rack, and the second rack Keeping meshed with the gear, the drive assembly is used to drive the first rack to mesh with or separate from the gear.

Preferably, the housing is formed with an oblique guide groove, and at the same time, the first rack is fixedly connected with a protruding point that slides with the oblique guide groove, when the protruding points move relatively to the two ends of the oblique guide groove , the first rack meshes with and separates from the gear respectively. When the first rack receives the thrust from the driving assembly in the length direction, the first rack moves along the oblique guide groove due to the cooperation between the oblique guide groove and the convex point, and thus switches to meshing and disengaging with the gear respectively. state.

Preferably, the drive assembly includes a traction seat, a traction shaft and a return spring, the traction seat moves along the length direction of the casing, one end of the traction shaft is connected to the first rack, and the other end of the traction shaft is connected to the center of the traction seat. A sliding fit is formed between them in the length direction, and the return spring is used to drive the traction shaft to move away from the traction seat. The fifth wheel can be linked with the handle and other operating parts, and finally drives the first rack to move through the transmission of the fifth wheel and the traction shaft to achieve meshing and separation with the gear. In addition, due to the sliding fit between the fifth wheel and the traction shaft, In the case of not moving, if the window sash is driven by a large external force such as wind, it can also realize self-unlocking, that is, the gear rotates under the action of a strong external force and drives the first rack to move in the opposite direction to unlock and protect the window sash.

Preferably, a horizontal guide groove is formed on the first rack, and the horizontal guide groove extends along the direction that the first rack is away from and close to the gear, and at the same time, the traction shaft is provided with a sliding fit with the horizontal guide groove. Boss. Due to the sliding fit between the horizontal guide groove and the boss, the traction shaft and the first rack can slide in the extension direction of the horizontal guide groove. When the sash is unlocked by a strong external force, the movement will not be restricted in this direction, so that the traction The shaft can slide relative to the fifth wheel to realize the self-unlocking function.

Preferably, the first component is also provided with a sliding seat, the gear is rotatably connected to the sliding seat, and the connecting rod is pivotally connected to the sliding seat. Through the sliding seat, the gear and the connecting rod can be translated and slid synchronously.

Preferably, a chute extending along the length direction is formed on the housing, and the pivot shaft between the connecting rod and the sliding seat is slidably matched with the chute. The sliding seat can be guided to slide along the length direction of the housing through the slide groove.

Preferably, the housing includes a bottom cover and a housing main body, and the bottom cover and the housing main body are connected by screws. The shell adopts the split structure assembled by the bottom cover and the shell main body, which can facilitate assembly and combination.

The beneficial effects of the utility model are: the wind brace of the utility model, the connecting rod and the gear will move along the length direction of the casing during the opening and closing process of the window sash, and when the first rack is separated from the gear, the gear can move along the casing The movement in the length direction of the body is not restricted, and the sash can be opened freely. When the gear meshes with the first rack and the second rack at the same time, the gear is in a locked state and cannot rotate and move along the length of the housing. At this time, because the connecting rod and the gear move synchronously, the connecting rod cannot move along the housing when the gear is locked. Therefore, the movement in the length direction of the body is restricted, thereby locking the opening angle of the sash. The driving assembly can be connected with operating parts such as a handle, and the first rack is driven by the driving assembly to realize fast unlocking and locking, and the operation is convenient and easy to use.

Description of drawings

Fig. 1 is an exploded diagram of the utility model.

Fig. 2 is an assembly diagram of the utility model with a window sash and a window frame.

Fig. 3 is a top view of the utility model in the unlocking mode.

Fig. 4 is a top view of the utility model in a locked mode.

Fig. 5 is a top view of the utility model in the automatic unlocking mode.

Among them, 1-first component, 111-bump, 112-chute, 113-bottom cover, 114-housing main body, 12-first rack, 13-second rack, 14-gear, 151-traction Seat, 152-traction shaft, 153-return spring, 154-boss, 16-sliding seat, 17-oblique guide groove, 18-horizontal guide groove, 2-second component, 3-connecting rod, 4-window sash, 5 -window frame.

Detailed ways

The technical scheme of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all embodiments. Based on the embodiments of the utility model, the present invention All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

Referring to Figures 1 and 2, the wind brace in this embodiment includes a first assembly 1 for connecting the window sashes 4, a second assembly 2 for connecting the window frame 5, and two ends respectively connected to the first assembly 1 and the second assembly 1. Two components 2 are hinged connecting rods 3 .

In this embodiment, the first assembly 1 includes a housing, a first rack 12 , a second rack 13 , a sliding seat 16 , a gear 14 and a driving assembly.

The housing includes a bottom cover 113 and a housing main body 114 , and the bottom cover 113 is connected to the housing main body 114 by screws. The housing adopts a split structure assembled with the bottom cover 113 and the housing main body 114 to facilitate assembly and combination. In addition, a sliding slot 112 extending along the length direction is formed on the housing. In this embodiment, the housing is fixedly installed on the upper side of the window sash 4 , so its length direction is parallel to the upper side of the window sash 4 .

Both the connecting rod 3 and the gear 14 can move synchronously relative to the housing along the length direction of the housing, specifically the gear 14 is rotatably connected to the sliding seat 16, and the connecting rod 3 is pivotally connected to the sliding seat 16 at the same time. The sliding seat 16 can make the gear 14 and the connecting rod 3 synchronously translate and slide. The pivot shaft between the connecting rod 3 and the sliding seat 16 is slidingly matched with the sliding groove 112, and the sliding seat 16 can be guided to slide along the length direction of the housing through the sliding groove 112.

Both the first rack 12 and the second rack 13 extend along the length direction of the housing, the gear 14 is located between the first rack 12 and the second rack 13 and the second rack 13 is in mesh with the gear 14 , the driving assembly is used to drive the first rack 12 to mesh with or separate from the gear 14 . Specifically, the drive assembly includes a traction seat 151, a traction shaft 152 and a return spring 153, the traction seat 151 moves along the length direction of the casing, one end of the traction shaft 152 is connected with the first rack 12, and the traction shaft The other end of 152 and the traction seat 151 form a sliding fit in the length direction, and the return spring 153 is used to drive the traction shaft 152 to move away from the traction seat 151 . In this embodiment, the traction seat 151 is linked with the handle, and the traction seat 151 is driven to move along the length direction of the housing by operating the handle. A horizontal guide groove 18 is formed on the first rack 12, and the horizontal guide groove 18 extends along the direction that the first rack 12 moves away from and approaches the gear 14, while the traction shaft 152 is provided with a 18 Slip fit boss 154. The housing is formed with an oblique guide groove 17, and at the same time, the first rack 12 is fixedly connected with a convex point 111 that slides and fits with the oblique guide groove 17. When the convex points 111 move relatively to the oblique guide groove 17 At both ends, the first rack 12 and the gear 14 are engaged and disengaged respectively. When the first rack 12 is subjected to the thrust from the drive assembly in the length direction, the first rack 12 will move along the inclined guide groove 17 due to the cooperation between the oblique guide groove 17 and the convex point 111, and thus switch to the gear with the gear. 14 states of engagement and disengagement, respectively.

The usage mode of the wind brace in this embodiment is as follows:

As shown in Figure 3, the unlocking mode: by turning the handle, the traction seat 151 is driven to move away from the first rack 12. At this time, the first rack 12 is driven by the traction shaft 152 to move, and the bumps 111 are opposite to each other. Slide to the first end point of the oblique guide groove 17 , at this time the first rack 12 moves away from the gear 14 and separates from the gear 14 . At this time, the gear 14 is only meshed with the second rack 13, the sliding seat 16 can slide freely along the housing without restriction, and the window sash 4 can also be opened and closed freely.

As shown in Figure 4, locking mode: by turning the handle, the traction seat 151 is driven to move in a direction close to the first rack 12, and at this time the first rack 12 is driven by the traction shaft 152 to move, and the bumps 111 are opposite to each other. Slide to the second end point of the inclined guide groove 17. At this time, the second rack 13 moved towards the direction close to the gear 14 and finally meshed with the gear 14. At this time, the gear 14 meshed with the second rack 13 and the second rack 13 at the same time, and the gear 14 could not rotate. The rod 3 is also limited by the gear 14 and cannot move along the length direction of the housing. Since the sliding seat 16 and the connecting rod 3 must slide during the opening and closing of the sash 4, the sash 4 cannot be further opened and closed when the sliding cannot be slid. locking.

As shown in Figure 5, automatic unlocking mode: when the wind brace is in the locking mode, when the window sash 4 is closed by a strong external force such as strong wind or human push, the connecting rod 3 will receive a corresponding force and transmit it to the sliding seat 16 Make the sliding seat 16 slide along the closing direction of the window sash 4, when the force reaches a certain level, it will break through the locking effect of the first rack 12 on the gear 14, and use the gear 14 to reversely drive the first rack 12 away from the gear 14, due to the sliding fit between the traction seat 151 and the traction shaft 152, even if the traction seat 151 does not move, if the window sash 4 is driven by a large external force such as wind blowing, it can realize self-unlocking, that is, The gear 14 rotates under the action of a strong external force and drives the first rack 12 to reversely move to unlock and protect the sash 4 . Simultaneously because the horizontal guide groove 18 is slidably matched with the boss 154, so the traction shaft 152 and the first tooth bar 12 can slide in the extension direction of the horizontal guide groove 18, and the activities when the window sash 4 is unlocked by a strong external force will not be affected by this. The restriction on the direction enables the traction shaft 152 to slide relative to the traction seat 151 to realize the self-unlocking function.

The above-mentioned embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form. Any person familiar with the art, without departing from the scope of the technical solution of the present utility model, can make use of the technical content disclosed above to make more possible changes and modifications to the technical solution of the utility model, or modify it to be equivalent to the equivalent change. Example. Therefore, all equivalent and equivalent changes made according to the idea of the utility model that do not deviate from the technical solution of the utility model shall be covered within the protection scope of the utility model.

Claims (7)

1. A wind brace, comprising a first component (1) and a second component (2) for respectively connecting the window frame (5) and the window sash (4), and the two ends are respectively connected with the first component (1) and the second Assembly (2) hinged connecting rod (3), characterized in that: the first assembly (1) includes a housing, a first rack (12), a second rack (13), a gear (14) and The drive assembly, the housing is fixedly connected with the window frame (5) or the window sash (4), the connecting rod (3) and the gear (14) can move synchronously relative to the housing along the length direction of the housing, the first A rack (12) and a second rack (13) both extend along the length direction of the housing, the gear (14) is located between the first rack (12) and the second rack (13), and the second rack The bar (13) keeps meshing with the gear (14), and the driving assembly is used to drive the first rack (12) to mesh with or separate from the gear (14). 2. A wind brace according to claim 1, characterized in that: the housing is formed with an oblique guide groove (17), and at the same time, the first rack (12) is fixedly connected with the oblique guide groove (17) Slip-fit bumps (111), when the bumps (111) move relatively to the two ends of the oblique guide groove (17), the first rack (12) meshes with the gear (14) respectively and separation. 3. The wind brace according to claim 1, characterized in that: the driving assembly includes a traction seat (151), a traction shaft (152) and a return spring (153), and the traction seat (151) is The casing moves in the length direction, one end of the traction shaft (152) is connected to the first rack (12), and the other end of the traction shaft (152) forms a sliding fit with the traction seat (151) in the length direction. The return spring (153) is used to drive the traction shaft (152) to move away from the traction seat (151). 4. A wind brace according to claim 3, characterized in that: the first rack (12) is formed with a horizontal guide groove (18), and the horizontal guide groove (18) is along the first rack (12) extending away from and approaching the gear (14), while the traction shaft (152) is provided with a boss (154) slidingly fitted with the horizontal guide groove (18). 5. A wind brace according to claim 1, characterized in that: the first assembly (1) is also provided with a sliding seat (16), the gear (14) is rotatably connected with the sliding seat (16), At the same time, the connecting rod (3) is pivotally connected with the sliding seat (16). 6. A wind brace according to claim 5, characterized in that: a chute (112) extending along the length direction is formed on the housing, and the connection between the connecting rod (3) and the sliding seat (16) The pivot shaft between them is slidingly matched with the slide groove (112). 7. A wind brace according to claim 1, characterized in that: the housing includes a bottom cover (113) and a housing body (114), and the bottom cover (113) and the housing body (114) ) connected by screws.

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