Door and window electric coupler lock structure

Abstract

The utility model provides a door and window electric hook lock structure which comprises a shell and a pin shaft carrier which are fixed to a door frame and a door leaf respectively, a pin shaft is arranged on the pin shaft carrier, a lock groove for the pin shaft to be inserted is formed in the shell, a lock hook is arranged in the shell, and the lock hook is connected with the pin shaft carrier. The door lock is characterized in that a driving device used for driving the lock hook to rotate and limiting the pin shaft in the lock groove is arranged in the shell, the driving device comprises an electromagnetic coil sleeve and a movable sliding rod matched in the electromagnetic coil sleeve in a telescopic mode, and the movable sliding rod drives the lock hook to rotate through an ejector rod. In a normal state, the lock hook is separated from the lock groove, after the pin shaft is inserted into the lock groove, the lock hook is pushed to advance through the driving device, the arc-shaped surface at the bottom of the lock hook abuts against the pin shaft and limits the pin shaft from being separated from the lock groove, and due to the design of the arc-shaped surface, the pin shaft cannot be clamped when the lock hook retreats backwards. By arranging the manual unlocking assembly, when the driving device breaks down or is powered off, the lock hook can be unlocked through the manual unlocking assembly, and the door and window can be manually opened in emergency.

Description

Technical Field

[0001] This utility model relates to the field of electric hook lock technology, specifically to a door and window electric hook lock structure. Background Technology

[0002] A typical door and window structure includes: a window sash and a window frame. A friction hinge is installed between the window sash and the window frame. A latch device is installed between the window sash and the window frame to lock the door and window.

[0003] Currently, electromagnet-based latching devices are gradually being adopted in the market. For example, an electric lock with Chinese patent publication number CN102003116B has a housing and a latch. The housing contains a backup battery, an electronic control module, and an electromagnet located behind the latch. The latch is a hook-shaped latch, which is connected to the housing by a pin. A torsion spring is installed on the pin. The sliding pad of the electromagnet is connected to a push rod. When the push rod is in the extended state, its front part presses against the rear part of the hook-shaped latch, locking the latch. The latch is locked using an electrically controlled electromagnet.

[0004] However, over-reliance on electromagnets has a drawback: when there is a power outage or the electromagnet malfunctions, the latch may fail to unlock, which could lead to safety accidents in emergency situations where doors and windows cannot be opened. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a door and window electric hook lock structure, which solves the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a door and window electric hook lock structure, comprising a housing and a pin carrier respectively fixed on the door frame and door leaf, wherein a pin is provided on the pin carrier, and a lock groove for inserting the pin is provided on the housing, a lock hook is provided inside the housing, and a driving device for driving the lock hook to rotate and restricting the pin in the lock groove is provided inside the housing, wherein the driving device includes an electromagnetic coil sleeve and a movable sliding rod adapted to extend within the electromagnetic coil sleeve, and the movable sliding rod drives the lock hook to rotate through a top rod.

[0009] Preferably, the bottom of the locking hook has an arc-shaped surface, the top of the locking hook away from the arc-shaped surface is hinged to the housing, the head of the push rod is hinged to the middle section of the locking hook, and the tail of the push rod is hinged to the movable slide rod.

[0010] Preferably, the push rod is L-shaped, and a limiting post is provided inside the housing. When the push rod is pushed forward to cover the locking groove with the locking hook, the L-shaped bend of the push rod is just supported on the limiting post.

[0011] Preferably, a manual unlocking component is also provided between the sliding rod and the push rod, which can drive the push rod to move backward.

[0012] Preferably, the manual unlocking assembly includes a sleeve, a slider, and a connecting rod. The sleeve is disposed at the front end of the movable slider, and the slider is slidably fitted inside the sleeve. A spring is disposed inside the sleeve between the slider and the bottom end of the sleeve. The slider is hinged to the top rod via the connecting rod. The sides of the housing and the sleeve are respectively provided with through slots and slides, and an external lever key can pass through the slots and slides to move the slider.

[0013] Preferably, a locking structure is further provided between the slider and the sleeve. The locking structure includes a top block. The side of the slider has a telescopic cavity that allows the top block to slide longitudinally. A second spring is provided between the top block and the bottom of the telescopic cavity. The side wall of the sleeve, corresponding to the top block, is provided with a triangular tooth set one and a triangular tooth set two that can interlock with each other. A recessed limiting groove is provided in the middle of the top block, and the limiting groove corresponds to the slide rail.

[0014] Preferably, a spring plate is provided outside the sleeve, and a return spring is provided between the spring plate and the electromagnetic coil sleeve.

[0015] (III) Beneficial Effects

[0016] This utility model provides a door and window electric hook lock structure. It has the following beneficial effects:

[0017] 1. This door and window electric hook lock structure, by setting a manual unlocking component, can unlock the lock hook through the manual unlocking component when the drive device fails or power is cut off, so as to manually open the door and window in an emergency.

[0018] 2. In this door and window electric hook lock structure, the lock hook is normally disengaged from the lock groove. When the pin is inserted into the lock groove, the lock hook is pushed forward by the drive device. The bottom arc surface of the lock hook abuts against the pin and restricts it from disengaging from the lock groove. The arc surface design ensures that the lock hook will not jam the pin when it moves backward.

[0019] 3. The door and window electric hook lock structure, by setting an L-shaped top rod in conjunction with a limiting post, can prevent the arc surface of the lock hook from disengaging from the pin due to excessive forward travel, and avoid the pin being stuck by the back of the lock hook. Attached Figure Description

[0020] Figure 1 This is an external isometric view of the present invention;

[0021] Figure 2 This is a side sectional view of the present invention;

[0022] Figure 3This is a top sectional view of the present invention;

[0023] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the top block of this utility model.

[0025] In the diagram: 1. Housing, 2. Pin carrier, 3. Lock groove, 4. Pin, 5. Lock hook, 51. Arc surface, 6. Drive device, 61. Electromagnetic coil sleeve, 62. Moving slide rod, 63. Top rod, 7. Manual unlocking assembly, 71. Sleeve, 72. Slider, 73. Spring 1, 74. Connecting rod, 75. Slot, 76. Telescopic cavity, 77. Top block, 78. Spring 2, 79. Triangular tooth assembly 1, 80. Triangular tooth assembly 2, 81. Slide, 82. Limiting groove, 8. Limiting post. Detailed Implementation

[0026] This utility model embodiment provides a door and window electric hook lock structure, such as Figure 1-5 As shown, the device includes a housing 1 and a pin carrier 2, which are respectively fixed to the door frame and the door leaf. A pin 4 is provided on the pin carrier 2. The housing 1 has a lock groove 3 into which the pin 4 can be inserted. A lock hook 5 is provided inside the housing 1. A drive device 6 is provided inside the housing 1 to drive the lock hook 5 to rotate and to restrict the pin 4 within the lock groove 3. The bottom of the lock hook 5 has an arc-shaped surface 51.

[0027] Normally, the hook 5 is disengaged from the lock groove 3. When the pin 4 is inserted into the lock groove 3, the hook 5 is pushed forward by the drive device 6. The bottom arc surface 51 of the hook 5 abuts against the pin 4 and restricts it from disengaging from the lock groove 3. The design of the arc surface 51 ensures that the hook 5 will not jam the pin 4 when it moves backward.

[0028] The driving device 6 includes an electromagnetic coil sleeve 61 and a movable slide rod 62 that is telescopically adapted within the electromagnetic coil sleeve 61. A stationary iron core is provided at the bottom end of the electromagnetic coil sleeve 61. A spring plate is provided outside the sleeve 71, and a return spring is provided between the spring plate and the electromagnetic coil sleeve 61. The electromagnet used in the driving device 6 is a mature existing technology. When the electromagnetic coil sleeve 61 is energized, a magnetic field is generated, causing the movable slide rod 62 to attract the stationary iron core, thereby realizing the retraction and unlocking action of the movable slide rod 62. When the current is disconnected, the movable slide rod pops out due to the action of the return spring, completing the extension and locking action.

[0029] The movable slide bar 62 drives the locking hook 5 to rotate via the push rod 63.

[0030] Specifically, such as Figure 2 As shown, the top of the locking hook 5 away from the arc-shaped surface 51 is hinged to the housing 1, the head of the push rod 63 is hinged to the middle section of the locking hook 5, and the tail of the push rod 63 is hinged to the movable slide rod 62.

[0031] The push rod 63 is L-shaped, and a limiting post 8 is provided inside the housing 1. When the push rod 63 pushes forward to cover the locking hook 5 and lock the locking groove 3, the L-shaped bend of the push rod 63 is just supported on the limiting post 8. By setting the limiting post 8, it is possible to prevent the arc surface 51 of the locking hook 5 from disengaging from the pin 4 due to excessive forward travel, and to avoid the pin 4 being stuck by the back of the locking hook 5.

[0032] A manual unlocking component 7 is also provided between the sliding rod 62 and the top rod 63. The manual unlocking component 7 can drive the top rod 63 to move backward. When the drive device 6 malfunctions or loses power, the lock hook 5 can be unlocked through the manual unlocking component 7, which can be used to manually open the door and window in an emergency.

[0033] like Figure 3-4 As shown, the manual unlocking assembly 7 includes a sleeve 71, a slider 72, and a connecting rod 74. The sleeve 71 is located at the front end of the movable sliding rod 62. The slider 72 is slidably fitted inside the sleeve 71. A spring 73 is installed inside the sleeve 71 between the slider 72 and the bottom end of the sleeve 71. The slider 72 is hinged to the top rod 63 via the connecting rod 74. The sides of the housing 1 and the sleeve 71 are respectively provided with through slots 75 and slides 81. An external lever key can pass through the slots 75 and slides 81 to move the slider 72. To facilitate the insertion of the external lever key into the slide 81, the distance between the sleeve 71 and the inner wall of the housing 1 can be made as small as possible. The slot 75 is located on the side of the housing 1 closer to the interior.

[0034] like Figure 4-5 As shown, a locking structure is also provided between the slider 72 and the sleeve 71. The locking structure includes a top block 77. The side of the slider 72 has a telescopic cavity 76 that allows the top block 77 to slide longitudinally. A second spring 78 is provided between the bottom of the top block 77 and the telescopic cavity 76. The side wall of the sleeve 71, corresponding to the top block 77, is provided with a set of interlocking triangular teeth 79 and a set of triangular teeth 80. The teeth of the set of triangular teeth 79 and the set of triangular teeth 80 are all isosceles triangles. A recessed limiting groove 82 is provided in the middle of the top block 77, which corresponds to the slide rail 81. The slide rail 81 is opened along the length of the set of triangular teeth 79 and is located in the middle of the set of triangular teeth 79.

[0035] Under normal conditions, the triangular tooth assembly 79 and the triangular tooth assembly 80 are engaged with each other. When the sleeve 71 extends or retracts, it can synchronize the extension and retraction of the slider 72 and the connecting rod 74. When it is necessary to manually unlock the lock hook 5, the external lever key is inserted from the slot 75 and the slide rail 81 into the limiting groove 82 of the top block 77. First, the top block 77 is pressed inward to disengage the triangular tooth assembly 80 from the triangular tooth assembly 79. Then, the top block 77 is pushed backward, and the top block 77, in conjunction with the slider 72, the connecting rod 74, and the lock hook 5, completes the unlocking.

[0036] 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.

Claims

1. A door and window electric hook lock structure, comprising a housing (1) and a pin carrier (2) respectively fixed to a door frame and a door leaf, wherein a pin (4) is provided on the pin carrier (2), a lock groove (3) for inserting the pin (4) is provided on the housing (1), and a lock hook (5) is provided inside the housing (1), characterized in that: The housing (1) is provided with a drive device (6) for driving the lock hook (5) to rotate and restricting the pin (4) in the lock groove (3). The drive device (6) includes an electromagnetic coil sleeve (61) and a movable slide rod (62) that is telescopically adapted to the electromagnetic coil sleeve (61). The movable slide rod (62) drives the lock hook (5) to rotate through the top rod (63).

2. The door and window electric hook lock structure according to claim 1, characterized in that: The bottom of the hook (5) has an arc-shaped surface (51), the top of the hook (5) away from the arc-shaped surface (51) is hinged in the housing (1), the head of the push rod (63) is hinged in the middle section of the hook (5), and the tail of the push rod (63) is hinged to the sliding rod (62).

3. The door and window electric hook lock structure according to claim 1, characterized in that: The top rod (63) is L-shaped, and a limiting post (8) is provided inside the housing (1). When the top rod (63) pushes the locking hook (5) forward to cover the locking groove (3), the L-shaped bend of the top rod (63) is just supported on the limiting post (8).

4. The door and window electric hook lock structure according to claim 1, characterized in that: A manual unlocking component (7) is also provided between the movable slide rod (62) and the top rod (63), which can drive the top rod (63) to move backward.

5. The door and window electric hook lock structure according to claim 4, characterized in that: The manual unlocking component (7) includes a sleeve (71), a slider (72), and a connecting rod (74). The sleeve (71) is located at the front end of the movable sliding rod (62). The slider (72) is slidably fitted inside the sleeve (71). A spring (73) is provided inside the sleeve (71) between the slider (72) and the bottom end of the sleeve (71). The slider (72) is hinged to the top rod (63) through the connecting rod (74). The sides of the housing (1) and the sleeve (71) are respectively provided with through slots (75) and slides (81). An external lever key can pass through the slots (75) and slides (81) to move the slider (72).

6. The door and window electric hook lock structure according to claim 5, characterized in that: A locking structure is also provided between the slider (72) and the sleeve (71). The locking structure includes a top block (77). The side of the slider (72) is provided with a telescopic cavity (76) that allows the top block (77) to slide longitudinally. A second spring (78) is provided between the bottom of the top block (77) and the telescopic cavity (76). The side wall of the sleeve (71) corresponding to the top block (77) is provided with a triangular tooth set one (79) and a triangular tooth set two (80) that can interlock with each other. A recessed limiting groove (82) is provided in the middle of the top block (77). The limiting groove (82) corresponds to the slide (81).

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