A latch for a glass door

By incorporating a magnetic attraction and a return spring into the bolt lock, automatic locking and unlocking of the bolt lock is achieved, solving the problems of inconvenience and laborious operation of traditional bolt locks and improving the user experience.

CN224549880UActive Publication Date: 2026-07-24ZHEJIANG QUANCHENG INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG QUANCHENG INTELLIGENT TECH CO LTD
Filing Date
2025-08-22
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional bolt locks are inconvenient and laborious to operate.

Method used

A bolt lock was designed, comprising a latch box with built-in magnets, a lock body, and an unlock button assembly. It achieves automatic locking through magnetic attraction, unlocks by pressing the button, and automatically resets by a return spring, simplifying operation.

Benefits of technology

It enables automatic locking and unlocking of the latch lock, making operation simpler, less strenuous, and more convenient to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a latch lock for glass door, including buckle box, lock body and unlocking button subassembly, the lock body includes lock shell and lock tongue, the lock tongue includes the lock tongue head of one end and the slider of the other end, the lock tongue head is opposite to buckle box arrangement, the slider is slidably arranged in the lock shell, makes the lock tongue retract in the lock shell up and down, the unlocking button subassembly includes the base and button, the button is connected with the slider through the towline, the upper end of towline is provided with the linkage head, the linkage head is placed in the slider, and is equipped with first reset spring, the button is pulled down the towline, the linkage head promotes the slider and drives the lock tongue head to retract into the lock shell, the lock tongue head is separated with buckle box, and the door and window are unlocked easily, release the button, and first reset spring drives the linkage head and button automatic reset, avoid the interference to the lock tongue, make the lock tongue can be attracted into buckle box by magnet, make the door and window unlock and the operation of locking more simple, convenient.
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Description

Technical Field

[0001] This utility model relates to the field of bolt lock technology, and more specifically, to a bolt lock for glass doors. Background Technology

[0002] A bolt is a security component that prevents doors and windows from being opened from the outside. Ancient door and window bolts were made of wood, while modern door and window bolts are generally made of metal. A bolt is generally divided into two parts: one part has a movable insert and the other part is a bolt hole, also called the bolt "nose".

[0003] Traditional latches require the user to hold the handle of the latch rod to insert or release it from the latch hole on top of the door, which is inconvenient and laborious. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bolt lock for glass doors.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A bolt lock for glass doors includes a snap box with a built-in magnet, a lock body, and an unlocking button assembly;

[0007] The lock body includes a lock shell and a lock tongue. The lock tongue includes a latch at one end and a slider at the other end. The latch is disposed opposite to the snap box. The slider is slidably disposed inside the lock shell, so that the lock tongue can extend and retract up and down inside the lock shell.

[0008] The unlock button assembly includes a base and a button slidably mounted on the base, the button being connected to the slider via a traction rope;

[0009] The upper end of the traction rope is provided with a linkage head, which is placed inside the slider and fitted with a first return spring.

[0010] Pressing the button downwards pulls the traction rope downwards, causing the linkage head to push the slider, which in turn causes the lock tongue to retract downwards into the lock housing and compresses the first return spring; the lock tongue then separates from the latch box, thus unlocking the lock.

[0011] The present invention further includes: a groove for installing a linkage head is provided inside the lock housing, and the linkage head is slidably disposed in the groove;

[0012] The upper end of the first return spring abuts against the linkage head, and the lower end abuts against the inner sidewall of the groove;

[0013] After the button is released, the first reset spring drives the linkage head to slide upward, causing the lower end of the linkage head to separate from the slider.

[0014] The present invention further includes: a sliding groove on the base for the button to slide, and two sets of reset components for driving the button to reset are provided in the sliding groove. The reset components include a mounting rod and a second reset spring sleeved on the mounting rod. The upper end of the second reset spring abuts against the button and the lower end abuts against the sliding groove.

[0015] After the button is released, the second reset spring causes the button to move the traction rope upward.

[0016] The present invention further includes: a through hole for the traction rope to pass through at the lower end of the button, and a top screw hole at the upper end, the lower end of which is connected to the through hole;

[0017] The lower end of the set screw passes through the set screw hole and rests against the traction rope, thus fixing the traction rope to the button.

[0018] The present invention further comprises: an upper mounting seat is fixedly mounted on the upper end of the base through a mounting hole, and a lower mounting seat is movably mounted on the lower end through a waist-shaped hole.

[0019] The beneficial effects of this utility model are as follows: It includes a latch box with a built-in magnet, a lock body, and an unlocking button assembly. The lock body includes a lock shell and a latch. The latch includes a tongue at one end and a slider at the other end. The tongue is positioned opposite the latch box, and the slider is slidably disposed within the lock shell, allowing the tongue to extend and retract vertically within the lock shell. The unlocking button assembly includes a base and a button slidably disposed on the base. The button is connected to the slider via a traction rope. A linkage head is provided at the upper end of the traction rope, and the linkage head is placed inside the slider and fitted with a first return spring. After the door is closed, the latch is opposite the latch box, and the latch is attracted by the magnet inside the latch box. Under the action of force, the lock case extends and is placed inside the latch box, realizing automatic locking of the door and window; when unlocking, press the button down, the button pulls the traction rope down, the linkage head pushes the slider to drive the lock tongue to retract into the lock case, and compresses the first return spring; the lock tongue separates from the latch box, easily realizing unlocking of the door and window; making the locking and unlocking of the door and window by the bolt lock simpler, more convenient and less labor-intensive; after releasing the button, the first return spring pushes the linkage head upward, causing the linkage head to drive the traction rope and the button to move upward, realizing automatic reset; when closing the door again, when the lock tongue is opposite the latch box, it avoids the linkage head pressing against the slider and interfering with the lock tongue. Attached Figure Description

[0020] Figure 1 This is an application diagram of a bolt lock for glass doors according to the present invention;

[0021] Figure 2 This is a schematic diagram of a door frame for a bolt lock used in glass doors according to the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a bolt lock for glass doors according to this utility model. Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the structure of a bolt lock for glass doors according to this utility model. Figure 2 ;

[0024] Figure 5 This is a diagram showing the fit between the lock body and the button of a bolt lock for glass doors according to this utility model.

[0025] Figure 6 This is a schematic diagram of the lock housing of a bolt lock for glass doors according to the present invention;

[0026] Figure 7 This is a schematic diagram of the base of a bolt lock for glass doors according to the present invention;

[0027] Figure 8 This is a schematic diagram of the button structure of a bolt lock for a glass door according to the present invention;

[0028] Figure 9 This is a schematic diagram of the traction rope for a latch lock on a glass door according to the present invention.

[0029] Figure 10 This is a schematic diagram of the bolt structure of a bolt lock for glass doors according to the present invention;

[0030] Figure 11 This is a schematic diagram of the frame structure of a bolt lock for glass doors according to the present invention;

[0031] Figure 12 This utility model provides an installation diagram of the upper and lower mounting bases of a bolt lock for a glass door on the base.

[0032] Figure 13 This is a schematic diagram of the upper and lower mounting bases of a bolt lock for a glass door according to the present invention.

[0033] Explanation of reference numerals in the attached drawings: 1. Snap-on box; 2. Lock body; 21. Lock shell; 211. Groove; 22. Lock tongue; 221. Lock tongue; 222. Slider; 3. Unlock button assembly; 31. Base; 311. Slide groove; 312. Mounting rod; 313. Second return spring; 314. Upper mounting base; 315. Lower mounting base; 32. Button; 321. Set screw hole; 322. Through hole; 33. Mounting hole; 34. Waist-shaped hole; 4. Traction rope; 41. Linkage head; 42. First return spring; 5. Set screw; 6. Frame; 61. Mounting groove. Detailed Implementation

[0034] See attached document Figures 1 to 13 This invention provides a more detailed description of a bolt lock for glass doors.

[0035] A bolt lock for a glass door includes a snap box 1 with a built-in magnet, a lock body 2, and an unlocking button assembly 3; wherein the snap box 1 is installed on the upper crossbeam of the door frame, and the lock body 2 and the unlocking button assembly 3 are installed on the frame 6 of the glass door.

[0036] The lock body 2 includes a lock shell 21 and a lock tongue 22. The lock tongue 22 includes a lock tongue 221 at one end and a slider 222 at the other end. The lock tongue 221 is disposed opposite to the buckle box 1. The slider 222 is slidably disposed inside the lock shell 21, so that the lock tongue 22 can extend and retract up and down inside the lock shell 21.

[0037] The unlock button assembly 3 includes a base 31 and a button 32 slidably disposed on the base 31. The button 32 is connected to the slider 222 by a traction rope 4, which is a steel wire rope.

[0038] The upper end of the traction rope 4 is provided with a linkage head 41, which is placed inside the slider 222 and fitted with a first return spring 42.

[0039] After the door is closed, the latch 221 faces the latch box 1. Under the attraction of the magnet inside the latch box 1, the latch 221 extends out of the lock shell 21 and is placed inside the latch box 1, realizing automatic locking of the door and window. When unlocking, press the button 32 down. The button 32 pulls the traction rope 4 down. The linkage head 41 pushes the slider 222, causing the latch 221 to retract downward into the lock shell 21 and compress the first return spring 42. The latch 221 separates from the latch box 1, easily unlocking the door and window. This makes the locking and unlocking of the door and window and the deadbolt operation of the bolt lock simpler, more convenient and less labor-intensive. After releasing the button 32, the first return spring 42 pushes the linkage head 41 upward, causing the linkage head 41 to move the traction rope 4 and the button 32 upward, realizing automatic reset. When the door is closed again, when the latch 221 faces the latch box 1, the linkage head 41 is prevented from pressing against the slider 222 and interfering with the latch 22.

[0040] The lock housing 21 is provided with a groove 211 for mounting the linkage head 41, and the linkage head 41 is slidably disposed in the groove 211; the upper end of the first return spring 42 abuts against the linkage head 41, and the lower end abuts against the inner sidewall of the groove 211.

[0041] When button 32 is pressed down, the linkage head 41 slides downward along the groove 211. The lower end of the linkage head 41 abuts against the slider 222 and drives the locking tongue 22 to overcome the magnetic attraction and retract into the lock case 21, compressing the first return spring 42 to unlock. After button 32 is released, the first return spring 42 drives the linkage head 41 to slide upward, so that the lower end of the linkage head 41 separates from the slider 222, avoiding interference with the upward extension of the locking tongue 22.

[0042] The base 31 is provided with a slide groove 311 for the button 32 to slide. Two sets of reset components are provided in the slide groove 311 to drive the button 32 to reset. The two sets of reset components are located on the left and right sides of the lower end of the button 32. The reset component includes a mounting rod 312 and a second reset spring 313 sleeved on the mounting rod 312. The upper end of the second reset spring 313 abuts against the button 32 and the lower end abuts against the slide groove 311.

[0043] After unlocking is complete, release button 32. The second reset spring 313 drives button 32 to move the traction rope 4 upward, so that button 32 can be reset smoothly.

[0044] The button 32 has a through hole 322 at its lower end for the traction rope to pass through, and a top screw hole 321 at its upper end. The lower end of the top screw hole 321 is connected to the through hole 322.

[0045] The lower end of the set screw 5 passes through the set screw hole 321 and abuts against the traction rope 4, fixing the traction rope 4 to the button 32; by adjusting the length of the traction rope 4, the position between the lock body 2 and the unlocking button assembly 3 can be adjusted, thereby improving the applicability of the product.

[0046] The upper end of the base 31 is fixedly mounted with an upper mounting seat 314 through a mounting hole 33, and the lower end is movably mounted with a lower mounting seat 315 through a waist-shaped hole 34.

[0047] The upper mounting base 314 has an upper screw hole corresponding to the mounting hole 33, and the lower mounting base 315 has a lower screw hole corresponding to the oblong hole 34. The upper mounting base 314 is fixed to the upper end of the base 31 by screws passing through the mounting hole 33 and engaging with the upper screw hole. The lower mounting base 315 is movably mounted to the lower end of the base 31 by screws passing through the oblong hole 34 and engaging with the lower screw hole.

[0048] The frame 6 is provided with a mounting slot 61 for installing the unlock button assembly 3. When installing the unlock button assembly 3, first move the lower mounting base 315 upward and retract it below the base 31; then insert the upper end of the base 31, which is fixed with the upper mounting base 314, into the cavity at the upper end of the mounting slot 61 of the frame 6, so that the base 31 is embedded in the mounting slot 61; under the action of gravity, the lower mounting base 315 at the lower end of the base 31 extends downward and inserts into the cavity below the mounting slot 61 of the frame 6; then screw the screw on the waist-shaped hole 34 downward into the lower screw hole of the lower mounting base 315, and firmly fix the base 31 in the mounting slot 61 of the frame 6; this simplifies the installation operation of the unlock button assembly 3 of the latch lock on the frame 6.

[0049] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bolt lock for glass doors, characterized in that: Includes a snap box with built-in magnets, a lock body, and an unlock button assembly; The lock body includes a lock shell and a lock tongue. The lock tongue includes a latch at one end and a slider at the other end. The latch is disposed opposite to the snap box. The slider is slidably disposed inside the lock shell, so that the lock tongue can extend and retract up and down inside the lock shell. The unlock button assembly includes a base and a button slidably mounted on the base, the button being connected to the slider via a traction rope; The upper end of the traction rope is provided with a linkage head, which is placed inside the slider and fitted with a first return spring. Pressing the button downwards pulls the traction rope downwards, causing the linkage head to push the slider, which in turn causes the lock tongue to retract downwards into the lock housing and compresses the first return spring; the lock tongue then separates from the latch box, thus unlocking the lock.

2. A bolt lock for a glass door according to claim 1, characterized in that: The lock housing is provided with a groove for installing the linkage head, and the linkage head is slidably disposed in the groove; The upper end of the first return spring abuts against the linkage head, and the lower end abuts against the inner sidewall of the groove; After the button is released, the first reset spring drives the linkage head to slide upward, causing the lower end of the linkage head to separate from the slider.

3. A bolt lock for a glass door according to claim 2, characterized in that: The base is provided with a sliding groove for the button to slide. Two sets of reset components are provided in the sliding groove to drive the button to reset. The reset components include a mounting rod and a second reset spring sleeved on the mounting rod. The upper end of the second reset spring abuts against the button and the lower end abuts against the sliding groove. After the button is released, the second reset spring causes the button to move the traction rope upward.

4. A bolt lock for a glass door according to claim 1, 2, or 3, characterized in that: The button has a through hole at the lower end for the traction rope to pass through, and a set screw hole at the upper end. The lower end of the set screw hole is connected to the through hole. The lower end of the set screw passes through the set screw hole and abuts against the traction rope to fix the traction rope to the button.

5. A bolt lock for a glass door according to claim 1, 2, or 3, characterized in that: The upper end of the base is fixedly mounted with an upper mounting seat through a mounting hole, and the lower end is movably mounted with a lower mounting seat through an oblong hole.