Door and window accessory suitable for different sectional material depths

Abstract

The invention relates to the technical field of door and window hardware, in particular to a door and window accessory suitable for different profile depths, which comprises a fixed base, a movable seat and a depth adjusting mechanism, the rear side of the fixed base is provided with an opening, the movable seat is slidably accommodated in the fixed base, the movable seat can extend backwards through the opening, and the depth adjusting mechanism is used for adjusting the depth of the movable seat. The depth adjusting mechanism is arranged between the fixed base and the movable seat, the fixed base and the movable seat which can slide relatively are arranged, and the depth adjusting mechanism is arranged, so that the extending length of the movable seat can be continuously and steplessly adjusted; during installation, the front side of the fixed base abuts against the front inner wall of the profile cavity, then the depth adjusting mechanism drives the movable base to stretch out backwards till the movable base abuts against the rear inner wall of the profile cavity, and finally the installation component is locked. The structure can be perfectly matched with a series of profile cavities with different depths, and is high in universality, convenient and fast to install and firm.

Description

Technical Field

[0001] This invention relates to the field of door and window hardware technology, and in particular to a door and window fitting suitable for different profile depths. Background Technology

[0002] In the field of door and window manufacturing and installation, accessories such as lock boxes and handle bases typically need to be fixed within the cavities of door and window profiles. Currently, the common method of fixing is to directly lock the main body of the accessory to the predetermined position on the profile using screws. However, the depth of the cavity (i.e., the front-to-back dimension) varies between different manufacturers and different series of door and window profiles. This means that accessories designed for a specific profile often cannot be directly adapted to cavities of other depths. During installation, it may be necessary to add shims, cut the profile, or replace accessories, which is not only cumbersome and inefficient but may also affect the stability and aesthetics of the installation. Therefore, there is an urgent need for a universal door and window accessory structure that can flexibly adapt to cavities of different depths. Summary of the Invention

[0003] The purpose of this invention is to provide a door and window fitting suitable for different profile depths, in order to solve the problems mentioned above.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a door and window fitting suitable for different profile depths, comprising: A fixed base, wherein the rear side of the fixed base is provided with an opening; A movable seat, which is slidably received within the fixed base, and the movable seat can extend rearward through the opening; A depth adjustment mechanism is provided between the fixed base and the movable seat. The depth adjustment mechanism can drive the movable seat to move relative to the fixed base in the front-back direction to adjust the length of the movable seat extending backward along the opening.

[0005] Furthermore, the fixed base includes two first side plates arranged opposite each other, and the movable base includes two second side plates arranged opposite each other. The second side plates are provided with gourd holes for installing lock cylinders, and the first side plates are provided with clearance holes corresponding to the gourd holes.

[0006] Furthermore, the depth adjustment mechanism includes an adjusting bolt and an adjusting nut that is threadedly engaged with it; the adjusting bolt is rotatably mounted on the fixed base, and the adjusting nut is fixedly mounted on the movable seat.

[0007] Furthermore, there are two adjusting bolts, which are respectively located on opposite sides of the movable seat along the height direction.

[0008] Furthermore, a guide structure is provided between the movable seat and the fixed base to restrict the movement direction of the movable seat.

[0009] Furthermore, the guide structure includes a sliding pin fixed in the fixed base and a sliding groove provided on the side surface of the movable seat, wherein the sliding pin and the sliding groove are slidably engaged.

[0010] Furthermore, the guide structure includes a guide groove on the side of the fixed base and a guide protrusion on the side of the movable base, wherein the guide groove and the guide protrusion are slidably engaged.

[0011] Furthermore, it also includes a latch assembly, which includes a latch and a latch seat. The front end of the latch is movably connected to the fixed base along its vertical axis, and the rear end is movably inserted into the latch seat along its front and back axis. The latch seat is movably connected to the movable seat along its vertical axis.

[0012] Furthermore, the front side of the fixed base is provided with a notch, the locking tongue slides into the notch, and extends at least partially to the front of the fixed base.

[0013] Furthermore, the fixed base is provided with mounting portions at both ends along the height direction, and the mounting portions are provided with clips and fixing screws, with the fixing screws passing through the mounting portions and connecting to the clips.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a fixed base and a movable seat that can slide relative to each other, and equipping them with a depth adjustment mechanism, the extension length of the movable seat can be continuously and steplessly adjusted; during installation, the front side of the fixed base is first placed against the front inner wall of the profile cavity, and then the movable seat is driven to extend backward through the depth adjustment mechanism until it presses against the rear inner wall of the profile cavity, and finally the installation components are locked; this structure can perfectly adapt to a series of profile cavities of different depths, has strong versatility, and is convenient and secure to install. Attached Figure Description

[0015] Figure 1 This is a stereoscopic view of the minimum depth state of the present invention.

[0016] Figure 2 This is a cross-sectional schematic diagram of the minimum depth state of the present invention.

[0017] Figure 3 This is a stereoscopic view of the maximum depth state of the present invention.

[0018] Figure 4 This is a cross-sectional schematic diagram showing the maximum depth state of the present invention.

[0019] Figure 5 This is an exploded view of the present invention.

[0020] Figure 6 This is a schematic diagram of the disassembled structure of the present invention.

[0021] Figure 7 This is a schematic diagram of the structure of the fixed base of the present invention.

[0022] Figure 8 This is a schematic diagram of the structure of the movable seat of the present invention.

[0023] Figure 9 This is a schematic diagram of the unlocked state of the latch assembly in this invention.

[0024] In the diagram: 10. Fixed base; 101. Opening; 102. Notch; 103. Mounting part; 11. First side plate; 111. Clearance hole; 12. Sliding pin; 13. Guide groove; 20. Movable seat; 21. Second side plate; 211. Loop hole; 22. Sliding groove; 23. Guide protrusion; 30. Adjusting bolt; 40. Adjusting nut; 50. Locking tongue assembly; 51. Locking tongue; 52. Locking tongue seat; 60. Clamping piece; 70. Fixing screw. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] As attached Figure 1-9 As shown, the present invention provides a door and window fitting suitable for different profile depths, including a fixed base 10, a movable seat 20, and a depth adjustment mechanism; the fixed base 10 constitutes the main frame of the fitting, and its whole is box-shaped with an opening 101 on the rear side; the movable seat 20 is generally frame-shaped, and its size is designed to be slidably accommodated in the internal cavity of the fixed base 10; the rear part of the movable seat 20 can extend to the rear of the fixed base 10 through the opening 101.

[0027] A depth adjustment mechanism is connected between the fixed base 10 and the movable seat 20 to provide power to change the relative position between them. In a preferred embodiment, the mechanism includes an adjusting bolt 30 and an adjusting nut 40. The adjusting bolt 30 is rotatably mounted on the fixed base 10. Specifically, its bolt head is constrained in a slot on the fixed base 10, allowing it to rotate freely but restricting axial movement. The adjusting nut 40 is firmly fixed to the internal frame of the movable seat 20 by a snap-fit. The threaded portion of the adjusting bolt 30 and the adjusting nut 40 form a threaded pair. When the adjusting bolt 30 is rotated with a tool, the threaded transmission will drive the adjusting nut 40 and its fixed movable seat 20 to produce linear displacement along the axial direction (i.e., the front-to-back direction) of the bolt due to the axial limitation of the bolt itself. Preferably, two adjusting bolts 30 are provided, located on the upper and lower (height direction) sides of the movable seat 20 respectively. Synchronous adjustment can ensure the smooth translation of the movable seat 20 and prevent tilting due to unilateral force.

[0028] To ensure the precise movement trajectory of the movable seat 20 and prevent it from rotating or shifting during adjustment, a guide structure is provided between the movable seat 20 and the fixed base 10. In a preferred embodiment, at least two sliding pins 12 are fixed laterally (i.e., in the left-right direction) on the inner walls of the two first side plates 11 of the fixed base 10; correspondingly, sliding grooves 22 extending in the front-back direction are provided on the outer surfaces of the two second side plates 21 of the movable seat 20, and the sliding pins 12 are embedded in the sliding grooves 22, forming a sliding fit between the two.

[0029] Specifically, a guide groove 13 extending in the front-back direction is provided on the inner wall of the first side plate 11 of the fixed base 10, and a guide protrusion 23 that can be embedded in the guide groove 13 is provided on the outer wall of the second side plate 21 of the movable seat 20; both of these structures can effectively constrain the movable seat 20, so that it can only slide in a straight line in the front-back direction.

[0030] Specifically, the fixed base 10 typically includes two first side plates 11 arranged opposite each other, and a connecting block connecting the two side plates; the movable base 20 also includes two second side plates 21 arranged opposite each other; in order to install the lock cylinder, the second side plate 21 of the movable base 20 is typically provided with a gourd hole 211; the first side plate 11 of the fixed base 10 is provided with a clearance hole 111 at a corresponding position so that the transmission component of the lock cylinder can pass through.

[0031] Specifically, as a complete lock accessory, the present invention also includes a latch assembly 50, which consists of a latch 51 and a latch seat 52. The latch seat 52 is mounted on the movable seat 20 via a sliding structure. Specifically, a protrusion (not shown in the figure) is provided on the side of the latch seat 52, and a guide groove (not shown in the figure) extending vertically is provided on the corresponding inner side wall of the movable seat 20. The protrusion is embedded in the guide groove to form a sliding fit, thereby allowing the latch seat 52 to move vertically relative to the movable seat 20. This vertical movement is driven by the lock cylinder to realize the locking and unlocking function. In addition, a guide hole is provided on the latch seat 52, allowing the rear end of the latch 51 to... The latch 51 is inserted into the guide hole of the latch seat 52 by sliding back and forth; its front end passes through the notch 102 opened on the front side of the fixed base 10 and extends partially to the front of the fixed base 10 for cooperating with the strike plate; when the movable seat 20 is driven to move back and forth to adapt to the profile depth by the depth adjustment mechanism, the latch seat 52 will move back and forth synchronously with the movable seat 20; however, the rear end of the latch 51 can slide back and forth in the latch seat 52, and its front end position is constrained by the notch 102 on the fixed base 10. Therefore, the extension length and front position of the latch 51 remain unchanged during the adjustment process, thereby ensuring that the fitting accuracy with the strike plate on the door frame is not affected by the profile depth.

[0032] In this embodiment, mounting portions 103 are provided at opposite ends of the fixed base 10 along the height direction (up and down); the mounting portions 103 are outwardly extending lugs with through holes; a clamping piece 60, which is generally planar, is placed on the outside of the profile cavity, and a fixing screw 70 passes through the through hole of the mounting portion 103 from the inside of the profile and is threadedly connected to the clamping piece 60; after tightening the fixing screw 70, the clamping piece 60 and the mounting portion 103 together clamp the wall of the profile, thereby firmly locking the entire accessory in the profile cavity.

[0033] Working principle: During installation, first place the entire accessory into the cavity of the door and window profile, so that the front side of the fixing base 10 rests against the front inner wall of the cavity; then, use a screwdriver or Allen wrench to rotate the two adjusting bolts 30; the rotational movement of the adjusting bolts 30 is converted into the linear rearward movement of the adjusting nut 40 and the movable seat 20 through the threaded pair. Under the constraint of the guide structure, the movable seat 20 extends smoothly backward until its rear end firmly rests against the rear inner wall of the profile cavity; at this time, the extension length of the movable seat 20 is exactly equal to the depth of the profile cavity; finally, pass the fixing screw 70 through the mounting part 103 and tighten it with the outer clamp 60 to firmly fix the accessory in the profile cavity; since the position of the movable seat 20 is infinitely adjustable, this accessory can accurately adapt to a series of profiles of different depths, realizing universal installation; the integrated latch assembly 50 moves synchronously with the movable seat 20, ensuring that the relative position of the latch 51 and the door frame upper strike plate is always correct.

[0034] The above embodiments are preferred embodiments of the present invention. Any structures similar to those of the present invention and equivalent changes thereof should fall within the protection scope of the present invention.

Claims

1. A door and window fitting suitable for different profile depths, characterized in that, include: A fixed base, wherein the rear side of the fixed base is provided with an opening; A movable seat, which is slidably received within the fixed base, and the movable seat can extend rearward through the opening; A depth adjustment mechanism is provided between the fixed base and the movable seat. The depth adjustment mechanism can drive the movable seat to move relative to the fixed base in the front-back direction to adjust the length of the movable seat extending backward along the opening.

2. The door and window fitting suitable for different profile depths according to claim 1, characterized in that: The fixed base includes two first side plates arranged opposite each other, and the movable base includes two second side plates arranged opposite each other. The second side plates are provided with gourd holes for installing lock cylinders, and the first side plates are provided with clearance holes corresponding to the gourd holes.

3. A door and window fitting suitable for different profile depths according to claim 1, characterized in that: The depth adjustment mechanism includes an adjustment bolt and an adjustment nut that is threadedly engaged with it; the adjustment bolt is rotatably mounted on the fixed base, and the adjustment nut is fixedly mounted on the movable base.

4. A door and window fitting suitable for different profile depths according to claim 3, characterized in that: There are two adjusting bolts, which are respectively located on opposite sides of the movable seat along the height direction.

5. A door and window fitting suitable for different profile depths according to claim 1, characterized in that: A guide structure is provided between the movable seat and the fixed base to limit the direction of movement of the movable seat.

6. A door and window fitting suitable for different profile depths according to claim 5, characterized in that: The guide structure includes a sliding pin fixed in the fixed base and a sliding groove provided on the side surface of the movable seat, wherein the sliding pin and the sliding groove are slidably engaged.

7. A door and window fitting suitable for different profile depths according to claim 5, characterized in that: The guide structure includes a guide groove on the side of the fixed base and a guide protrusion on the side of the movable base, wherein the guide groove and the guide protrusion are slidably engaged.

8. A door and window fitting suitable for different profile depths according to claim 1, characterized in that: It also includes a latch assembly, which includes a latch and a latch seat. The front end of the latch is movably connected to the fixed base along its vertical axis, and the rear end is movably inserted into the latch seat along its front and back axis. The latch seat is movably connected to the movable seat along its vertical axis.

9. A door and window fitting suitable for different profile depths according to claim 8, characterized in that: The front side of the fixed base has a notch, the locking tongue slides into the notch, and extends at least partially to the front of the fixed base.

10. A door and window fitting suitable for different profile depths according to claim 1, characterized in that: The fixed base is provided with mounting parts at both ends along the height direction. The mounting parts are provided with clips and fixing screws. The fixing screws pass through the mounting parts and are connected to the clips.

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