An out-swinging lower-hung sash lock box with linkage protection mechanism

Abstract

The utility model relates to a kind of outer opening lower-hung sash lock box with linkage protection mechanism, including lock shell, rack lock rod and gear box, lock shell is formed guide rail longitudinally, rack lock rod is arranged in guide rail, gear box is fixed in guide rail one side, rack lock rod is driven gear box and slides along guide rail up and down, rack lock rod includes left side wall and right side wall, linkage protection locking shaft passes through left side wall and right side wall, linkage protection locking shaft is fixed on limit ring and is sheathed spring, limit ring and spring are contained between left side wall and right side wall, one end of spring is pressed right side wall, the other end is pressed limit ring, locking hole is set up on the shell wall of lock shell, linkage protection locking shaft and locking hole form locking cooperation, the outside of lock shell is equipped with the opening mechanism of linkage protection locking shaft.The utility model when lower-hung opening state sash locking mechanism is limited and cannot act, thereby protect the lower support component, i.

Description

Technical Field

[0001] This utility model relates to a lock box for an outward-opening, bottom-hung window sash with a linkage protection mechanism. Background Technology

[0002] Outward-opening bottom-hung windows can achieve both outward-opening and outward-opening bottom-hung functions on the same window. In other words, they can open outwards like a regular window, or open outwards and bottom-hung. Currently, outward-opening bottom-hung windows are widely used in various buildings. However, due to their inherent structural design, these windows have a significant design flaw in practical applications. Specifically, when the window sash is in the bottom-hung position, if the window sash handle is turned to operate the locking mechanism, the lower support component, i.e., the sliding hinge, may slip out partially, preventing the window from opening and closing properly. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an outward-opening bottom-hung window sash lock box with a linkage protection mechanism. The outward-opening bottom-hung window sash lock box with linkage protection mechanism is compactly designed and can restrict the operation of the window sash locking mechanism when the outward-opening bottom-hung window is in the bottom-hung open state.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows: it includes a lock shell, a rack and pinion locking rod, and a gearbox. The lock shell forms a guide rail longitudinally, the rack and pinion locking rod is set in the guide rail, the gearbox is fixed on one side of the guide rail, and the gearbox drives the rack and pinion locking rod to slide up and down along the guide rail. The rack and pinion locking rod includes a left side wall and a right side wall. The linkage protection locking shaft passes through the left side wall and the right side wall. A limiting ring is fixed on the linkage protection locking shaft and a spring is sleeved on it. The limiting ring and the spring are housed between the left side wall and the right side wall. One end of the spring abuts against the right side wall and the other end presses against the limiting ring. A locking hole is opened on the shell wall of the lock shell. The linkage protection locking shaft and the locking hole form a locking fit. An opening mechanism for the linkage protection locking shaft is provided on the outside of the lock shell.

[0005] The opening mechanism of the linkage protection locking shaft includes an arc-shaped spring. The upper end of the arc-shaped spring is fixed to the wall of the lock housing by a pin. A push rod is fixed on the arc-shaped spring, and the push rod cooperates with the linkage protection locking shaft.

[0006] A cavity is formed between the left and right walls, and the limiting ring and spring are housed in the cavity.

[0007] Through the above-described specific design, the window sash locking mechanism of this utility model is restricted from operating when the outward-opening bottom-hung window is in the bottom-hung open state, thereby protecting the lower support component, i.e., the sliding hinge, from slippage. It has the advantages of compact structure, stable and reliable operation, and good performance. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0009] Appendix Figure 1 This is a schematic diagram of the assembly structure of this utility model in the locked state.

[0010] In the diagram: 1. Lock housing; 2. Rack and pinion locking rod; 3. Gearbox; 4. Guide rail; 5. Left side wall; 6. Right side wall; 7. Linkage protection locking shaft; 8. Limiting ring; 9. Spring; 10. Locking hole; 11. Arc-shaped spring piece; 12. Pin; 13. Push rod; 14. Cavity; 15. Transmission gear. Detailed Implementation

[0011] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0012] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0013] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0014] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] As shown in the figure, this utility model includes a lock housing 1, a rack and pinion lock rod 2, and a gearbox 3. The rack and pinion lock rod 2 has a transmission tooth 15 in the middle. The lock housing 1 forms a guide rail 4 longitudinally. The rack and pinion lock rod 2 is set in the guide rail 4. The gearbox 3 is fixed on one side of the guide rail 4. The gearbox 3 drives the rack and pinion lock rod 2 to slide up and down along the guide rail 4. The rack and pinion lock rod 2 includes a left side wall 5 and a right side wall 6. The linkage protection locking shaft 7 passes through the left side wall 5 and the right side wall 6. A limiting ring 8 is fixed on the linkage protection locking shaft 7 and a spring 9 is sleeved on it. The limiting ring 8 and the spring 9 are housed between the left side wall 5 and the right side wall 6. One end of the spring 9 presses against the right side wall 6, and the other end presses against the limiting ring 8. A locking hole 10 is opened on the shell wall of the lock housing 1. The linkage protection locking shaft 7 forms a locking fit with the locking hole 10. An opening mechanism for the linkage protection locking shaft 7 is provided on the outside of the lock housing 1. The opening mechanism of the linkage protection locking shaft 7 includes an arc-shaped spring piece 11. The upper end of the arc-shaped spring piece 11 is fixed to the shell wall of the lock housing 1 by a pin 12. A push rod 13 is fixed on the arc-shaped spring piece 11, and the push rod 13 cooperates with the linkage protection locking shaft 7. The left side wall 5 and the right side wall are designed to extend above the rack and pinion locking rod 2 body. As shown in the figure, a more compact design is that a cavity 14 is formed between the left side wall 5 and the right side wall 6, and the limiting ring 8 and the spring 9 are housed in the cavity 14. The rack and pinion locking rod 2 has a transmission tooth 15 in the middle. In use, this utility model is installed inside the window sash profile.

[0016] When the window sash is in the bottom-hung closed position, the arc-shaped spring piece 11 is pressed by the window frame profile, and the top rod 13 on the arc-shaped spring piece 11 fully enters the locking hole 10. The top rod 13 overcomes the resistance of the spring 9 and pushes the linkage protection locking shaft 7 out of the restriction of the locking hole 10. The rack and pinion locking rod 2 can slide up and down under the transmission of the gearbox 3. The gearbox 3 is equipped with a gear (not shown in the figure) driven by a square bar (not shown in the figure).

[0017] When the window sash is in the bottom-hung position, the curved spring piece 11 releases the pressure on the window frame profile and restores its curved shape. The top rod 13 on the curved spring piece 11 disengages from the locking hole 10. Under the reset action of the spring 9, the limiting ring 8 on the linkage protection locking shaft 7 pushes the linkage protection locking shaft 7 into the locking hole 10 for locking. The rack and pinion locking rod 2 cannot slide up or down under the restriction of the linkage protection locking shaft 7. This achieves the purpose of restricting the window sash locking mechanism from operating when the outward-opening bottom-hung window is in the bottom-hung position.

[0018] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. A lock box for an outward-opening, bottom-hung window sash with a linkage protection mechanism, comprising a lock housing, a rack and pinion locking rod, and a gearbox. The lock housing forms a longitudinal guide rail, the rack and pinion locking rod is disposed in the guide rail, and the gearbox is fixed to one side of the guide rail. The gearbox drives the rack and pinion locking rod to slide up and down along the guide rail. Its characteristic is that... The rack and pinion lock rod (2) includes a left side wall (5) and a right side wall (6). The linkage protection locking shaft (7) passes through the left side wall (5) and the right side wall (6). A limiting ring (8) is fixed on the linkage protection locking shaft (7) and a spring (9) is fitted on it. The limiting ring (8) and the spring (9) are housed between the left side wall (5) and the right side wall (6). One end of the spring (9) presses against the right side wall (6) and the other end presses against the limiting ring (8). A locking hole (10) is opened on the shell wall of the lock housing (1). The linkage protection locking shaft (7) and the locking hole (10) form a locking fit. The outer side of the lock housing (1) is provided with an opening mechanism for the linkage protection locking shaft (7).

2. A lock box for an outward-opening, bottom-hung window sash with a linkage protection mechanism as described in claim 1, characterized in that: The opening mechanism of the linkage protection locking shaft (7) includes an arc-shaped spring (11). The upper end of the arc-shaped spring (11) is fixed to the shell wall of the lock shell (1) by a pin (12). A top rod (13) is fixed on the arc-shaped spring (11). The top rod (13) cooperates with the linkage protection locking shaft (7).

3. A lock box for an outward-opening, bottom-hung window sash with a linkage protection mechanism as described in claim 1 or 2, characterized in that: A cavity (14) is formed between the left side wall (5) and the right side wall (6), and the limiting ring (8) and the spring (9) are housed in the cavity (14).

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