A locking device for a sliding door

Abstract

The utility model relates to the technical field of sliding door, specifically disclose a locking device for sliding door, fixed base includes top board and is located top board before and after side's vertical groove, the clamping groove includes the groove piece and is located in the cavity before and after wall end portion of groove piece in the pair of angle relation's limit protruding, the plug -in spare includes with vertical groove sliding joint matching's vertical board and in -end connection in the extension board of vertical board bottom end, and the outer end wall of extension board is equipped with with limit protruding buckling matching's hook head. Better solved the problem that sliding door uses locking device structure complex and cannot flexible adjustment, improved the versatility of locking device.

Description

Technical Field

[0001] This utility model relates to the field of sliding door technology, specifically a locking device for sliding doors. Background Technology

[0002] The sliding door locking device is an important component of the sliding door system. It is mainly used to ensure that the sliding door can be locked when it is closed or opened to prevent accidental movement.

[0003] Currently, common locking devices for sliding doors generally include a slot and a connector. The slot and connector are fixed inside the door frame and at the edge of the door body, respectively. When the door is opened or closed, the corresponding connector engages with the slot to lock the door. However, commonly used locking devices are generally structurally complex, can only be adapted to sliding doors of fixed sizes, lack flexible adjustability, and have poor versatility. Utility Model Content

[0004] The purpose of this utility model is to provide a locking device for sliding doors, which solves the problems of complex structure and inflexible adjustment of current locking devices for sliding doors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a locking device for a sliding door, comprising a slot and a connector, wherein the fixing base comprises a top plate and vertical slots disposed on the front and rear sides of the top plate; the slot comprises a groove-shaped component and limiting protrusions disposed diagonally at the front and rear ends of the inner cavity of the groove-shaped component; the connector comprises a vertical plate that slides and engages with the vertical slot and an extension plate whose inner end is connected to the bottom end of the vertical plate, wherein the outer end wall of the extension plate is provided with a hook that engages and engages with the limiting protrusions.

[0006] Preferably, the ends of the two side walls of the vertical groove are respectively provided with inwardly protruding strip blocks, and the front wall of the vertical plate is provided with a locking block that slides and engages with the two strip blocks in pairs.

[0007] Preferably, the inner sidewall of the strip block is provided with a toothed groove, and the two side walls of the locking block are respectively provided with toothed protrusions that engage and match the toothed groove.

[0008] Preferably, the inner cavity of the grooved component is provided with a cylindrical body, and the bottom surface of the grooved component is provided with a through hole corresponding to the position of the axis of the cylindrical body.

[0009] Preferably, the end of the grooved component is provided with a vertical shaft at a position opposite to the limiting protrusion, and a guide wheel is rotatably fitted at the top of the vertical shaft.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The present invention relates to a locking device for sliding doors, wherein the fixing base is convenient for fixed installation in the top cavity of the door frame, and the slot is convenient for flexible fixed installation on the top surface of the door; the plug-in can be flexibly adjusted up and down relative to the fixing base to match with the slot. The overall structure is not only simple and easy to install, but also has flexible and adjustable performance, improving the versatility of the locking device. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the entire utility model; Figure 2 This is a three-dimensional structural diagram of the card slot of this utility model; Figure 3 This is a three-dimensional structural diagram of the fixing base of this utility model; Figure 4 This is a three-dimensional structural diagram of the connector of this utility model.

[0012] In the diagram: 1-Slot; 1.1-Slotted component; 1.2-Limiting protrusion; 1.3-Cylinder body; 1.4-Vertical shaft; 1.5-Guide wheel; 2-Fixed base; 2.1-Top plate; 2.2-Vertical groove; 2.3-Strip block; 2.4-Toothed groove; 3-Plug-in component; 3.1-Vertical plate; 3.2-Extension plate; 3.3-Hook head; 3.4-Clamping block; 3.5-Toothed protrusion. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4 This utility model provides a technical solution: a locking device for a sliding door, wherein the fixing base 2 includes a top plate 2.1 and vertical grooves 2.2 provided on the front and rear sides of the top plate 2.1. The ends of the two side walls of the vertical groove 2.2 are respectively provided with inwardly protruding strip blocks 2.3. The inner side wall of the strip blocks 2.3 is provided with toothed grooves 2.4, and the toothed grooves 2.4 on the inner side walls of the two side strip blocks 2.3 are arranged in an interlaced manner.

[0015] The slot 1 includes a slotted part 1.1 and limiting protrusions 1.2 diagonally located at the front and rear ends of the inner cavity of the slotted part 1.1; a cylindrical body 1.3 is provided in the middle of the inner cavity of the slotted part 1.1, and a through hole is provided on the bottom surface of the slotted part 1.1 corresponding to the position of the axis of the cylindrical body 1.3.

[0016] The connector 3 includes a vertical plate 3.1 that slides and engages with the vertical groove 2.2, and an extension plate 3.2 whose inner end is connected to the bottom of the vertical plate 3.1. The outer end wall of the extension plate 3.2 is provided with a hook 3.3 that engages with the limiting protrusion 1.2. The front wall of the vertical plate 3.1 is provided with a locking block 3.4 that slides and engages with two pairs of strip blocks 2.3. The two side walls of the locking block 3.4 are respectively provided with toothed protrusions 3.5 that engage with the toothed groove 2.4. That is, the toothed protrusions 3.5 on the two side walls of the locking block 3.4 are also arranged in an interlaced manner.

[0017] Among them, the card slot 1, the fixing base 2 and the plug-in component 3 are all injection molded from nylon.

[0018] In summary, when installing the slot 1, place it in a suitable position on the top surface of the door, then insert the screw into the cylinder 1.3 and tighten the screw so that its bottom end enters the top surface of the door through the through hole, thus completing the overall fixed installation of the slot 1. Since the inner wall of the groove-shaped part 1.1 has two limiting protrusions 1.2 diagonally arranged at the end, the slot 1 can meet the needs of installing the plug-in parts 3 in both directions.

[0019] After assembling the door body into the door frame, use screws to attach and fix the top plate 2.1 to a suitable position on the top surface of the inner cavity of the door frame. Then, insert the vertical plate 3.1 upward from the bottom end of the vertical groove 2.2 into the inner cavity of the vertical groove 2.2, and the locking block 3.4 is engaged between the corresponding strip blocks 2.3, so that the toothed protrusion 3.5 is engaged with the corresponding toothed groove 2.4.

[0020] Finally, based on the assembly distance between the top surface of the door and the top surface of the inner cavity of the door frame, adjust the vertical position of the connector 3 relative to the fixed base 2 so that the height of the extension plate 3.2 matches the height of the grooved part 1.1. This ensures that after the door slides horizontally into place, the hook head 3.3 can precisely engage with the limiting protrusion 1.2 to lock the door. When sliding the door in the reverse direction, the hook head 3.3 can be easily disengaged from the limiting protrusion 1.2 to meet the sliding requirements of the door panel.

[0021] To further ensure smooth sliding of the door within the door frame, vertical shafts 1.4 are provided at the ends of the grooved component 1.1 and opposite to the limiting protrusion 1.2. Guide wheels 1.5 are rotatably mounted on the top of the vertical shafts 1.4. That is, when the door slides, the guide wheels 1.5 can roll along the inner wall of the door frame, providing guidance and drag reduction.

[0022] It should be noted that in this article, relational terms such as first and second are only used to refer to... Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

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