Mechanical unlocking structure of electromagnetic lock

Abstract

The utility model relates to the field of electromagnetic locks, and discloses an electromagnetic lock mechanical unlocking structure which comprises a lock head and a lock sleeve, a lock tongue is installed at the left end of the lock head, a lock groove is formed in the right end of the lock sleeve, the lock tongue is connected to the inner wall of the lock groove in an inserted mode, a protection assembly is arranged at the left end of the lock sleeve, and the protection assembly comprises a supporting frame. The right end of the supporting frame is fixedly connected to the left end of the lock sleeve, a fixing assembly is arranged on the inner wall of the lock sleeve and comprises a stop block, the stop block is slidably connected to the position, close to the front end of the lock groove, of the inner wall of the lock sleeve, the protection assembly further comprises a rotating block, and the right end of the rotating block is hinged to the left end of the supporting frame. According to the utility model, the lock cylinder can be unlocked by inserting a key, and then the key is rotated to drive the lock cylinder to rotate so as to drive the baffle block to move leftwards, so that the baffle block does not block the lock tongues any more, the fixation of the plurality of lock tongues can be released, and the whole device can be unlocked without being disassembled.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic locks, in particular to a mechanical unlocking structure of an electromagnetic lock. Background Art

[0002] Electromagnetic lock is a smart lock that uses electricity and magnetism to control. It has multiple unlocking methods, including induction unlocking and key unlocking. A complete set of electromagnetic locks usually consists of a set of lock heads and a set of lock sleeves. The lock head controls the pop-up lock tongue to insert into the lock slot inside the lock sleeve to fix the door.

[0003] In the prior art, the switch of the lock tongue is generally controlled by the lock head only, and the lock sleeve itself cannot be adjusted. Therefore, when the lock tongue cannot be retracted due to a short circuit or internal structure damage, the entire device needs to be disassembled. Since the installation of the lock head is generally anti-theft, some special lock heads also require the door to be destroyed before they can be removed. Therefore, an electromagnetic lock mechanical unlocking structure is proposed to solve the above problem. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides an electromagnetic lock mechanical unlocking structure, which aims to improve the problem in the prior art that "when the electromagnetic lock head is damaged and the lock tongue cannot be retracted, the entire device needs to be dismantled to achieve unlocking."

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electromagnetic lock mechanical unlocking structure, including a lock head and a lock sleeve, a lock tongue is installed at the left end of the lock head, a lock slot is provided at the right end of the lock sleeve, the lock tongue is inserted into the inner wall of the lock slot, a protective component is provided at the left end of the lock sleeve, the protective component includes a support frame, the right end of the support frame is fixedly connected to the left end of the lock sleeve, the inner wall of the lock sleeve is provided with a fixing component, the fixing component includes a block, and the block is slidably connected to the inner wall of the lock sleeve near the front end of the lock slot.

[0006] As a further description of the above technical solution:

[0007] The protection component also includes a rotating block, the right end of which is hinged to the left end of the support frame, the front end of the rotating block is fixedly connected to a protection plate, and the right end of the protection plate is fixedly connected to a rubber pad.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the rotating block is slidably connected with a positioning plate, and the left end of the supporting frame is provided with a positioning groove, and the positioning groove and the positioning plate are adapted to each other.

[0010] As a further description of the above technical solution:

[0011] The left end of the positioning plate is fixedly connected with a shift block, the shift block penetrates and is slidably connected to the rear end of the rotating block, the left end of the shift block is fixedly connected with a positioning spring, and the left end of the positioning spring is fixedly connected to the inner wall of the rotating block.

[0012] As a further description of the above technical solution:

[0013] The fixing assembly also includes a lock core, which is installed on the inner wall of the lock sleeve. The outer wall of the lock core is rotatably connected to a toothed ring. The left end of the stopper is fixedly connected to a rack, and the rack and the toothed ring are meshed with each other.

[0014] As a further description of the above technical solution:

[0015] The left end of the stopper is fixedly connected with a fixing spring, and the left end of the fixing spring is fixedly connected to the inner wall of the lock sleeve.

[0016] As a further description of the above technical solution:

[0017] A locking block is passed through and slidably connected to the bottom end of the stopper, and a locking groove is arranged on the inner wall of the locking sleeve near the left end of the stopper, and the locking groove is matched with the locking block.

[0018] As a further description of the above technical solution:

[0019] The top end of the locking block is fixedly connected with a locking spring, the top end of the locking spring is fixedly connected to the inner wall of the stopper, and the bottom end of the locking groove passes through and is slidably connected with an unlocking block.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the lock core can be unlocked by inserting the key, and then the key is turned to drive the lock core to rotate, which can drive the block to move to the left, so that the block no longer blocks the lock tongue, so that the fixation of the multiple lock tongues can be released, and the overall device can be unlocked without disassembly, which is more convenient in use.

[0022] 2. In the present invention, the front end of the lock sleeve is shielded by a protective component, so that the fixing component can be protected. Meanwhile, the entire lock sleeve is shielded by a protective plate, so that the lock sleeve and the fixing component can be prevented from being damaged by impact or collision, and the overall device has better safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure section of the lock body and the lock sleeve in the utility model;

[0025] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the fixing component in the utility model;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structural cross-section of the protective component in the utility model.

[0027] Legend:

[0028] 1. Lock head; 2. Lock tongue; 3. Lock sleeve; 4. Lock slot; 5. Protection assembly; 51. Support frame; 52. Positioning slot; 53. Protection plate; 54. Rubber pad; 55. Rotating block; 56. Positioning spring; 57. Positioning plate; 58. Dial block; 6. Fixed assembly; 61. Block; 62. Rack; 63. Fixed spring; 64. Lock core; 65. Unlocking block; 66. Locking block; 67. Locking spring; 68. Locking slot; 69. Gear ring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 - Figure 3 The utility model provides an embodiment: an electromagnetic lock mechanical unlocking structure, comprising a lock head 1 for controlling a lock tongue 2 and a lock sleeve 3 for cooperating with the lock head 1, a lock tongue 2 for fixing the lock head 1 is installed at the left end of the lock head 1, and a lock groove 4 for accommodating the lock tongue 2 is arranged at the right end of the lock sleeve 3, and the lock tongue 2 is inserted into the inner wall of the lock groove 4, and when the lock tongue 2 is inserted into the interior of the lock groove 4, the lock head 1 and the lock sleeve 3 will be fixed and cannot rotate, and a protective component 5 for protecting the lock sleeve 3 is arranged at the left end of the lock sleeve 3, and the protective component 5 includes a support frame 51 for supporting the overall protective component 5, and the right end of the support frame 51 is fixedly connected to the left end of the lock sleeve 3, and a fixing component 6 for fixing the lock tongue 2 is arranged on the inner wall of the lock sleeve 3, and the fixing component 6 includes a stopper 61 for blocking the lock tongue 2, and the stopper 61 is slidably connected to the inner wall of the lock sleeve 3 near the front end position of the lock groove 4, and by using the stopper 61 to block the lock tongue 2, the lock tongue 2 can be prevented from rotating out of the interior of the lock groove 4.

[0031] Reference Figure 1 , Figure 3 , Figure 4The protection assembly 5 also includes a rotating block 55 for driving the protection plate 53 to rotate. The right end of the rotating block 55 is hinged to the left end of the support frame 51. The front end of the rotating block 55 is fixedly connected to the protection plate 53 for shielding the front end of the lock sleeve 3. The right end of the protection plate 53 is fixedly connected to a rubber pad 54 for directly contacting the lock sleeve 3. When the protection plate 53 is hit, the rubber pad 54 will be compressed and contracted, thereby reducing the damage to the lock sleeve 3. The inner wall of the rotating block 55 is slidably connected to a positioning plate 57 for fixing the rotating block 55. The left end of the support frame 51 is provided with a positioning groove 52 for accommodating the positioning plate 57. The positioning groove 52 and the positioning plate 57 are fixedly connected. The positioning plate 57 is adapted to the positioning plate 57. When the positioning plate 57 is inserted into the interior of the positioning groove 52, the rotating block 55 will be fixed and cannot rotate. The left end of the positioning plate 57 is fixedly connected with a shift block 58 for facilitating the operator to move the positioning plate 57. The shift block 58 passes through and is slidably connected to the rear end of the rotating block 55. The positioning plate 57 can be driven to disengage from the interior of the positioning groove 52 by shifting the shift block 58. The left end of the shift block 58 is fixedly connected with a positioning spring 56 for pushing the shift block 58. The left end of the positioning spring 56 is fixedly connected to the inner wall of the rotating block 55. The positioning spring 56 will always push the shift block 58 to the right to prevent the positioning plate 57 from disengaging from the positioning groove 52.

[0032] Reference Figure 1 - Figure 3The fixing assembly 6 also includes a lock core 64. The lock core 64 is a prior art. After the corresponding key is inserted, the internal shaft can be rotated, while the external rotating sleeve will not move. Due to the prior art and the fact that it can be implemented by personnel in this field, no further description is given in this case. The lock core 64 is installed on the inner wall of the lock sleeve 3. The outer wall of the lock core 64 is rotatably connected with a toothed ring 69 for driving the rack 62 to move. The toothed ring 69 is connected to the internal rotating shaft of the lock core 64. The left end of the stopper 61 is fixedly connected with a rack 62 for driving the stopper 61 to move. The rack 62 and the toothed ring 69 are meshed with each other. The rotation of the lock core 64 can drive the toothed ring 69 to rotate. The rotation of the toothed ring 69 can drive the rack 62 to move horizontally. The left end of the stopper 61 is fixedly connected with a fixing spring 63 for pushing the stopper 61. The left end of the fixing spring 63 is fixedly connected to the inner wall of the lock sleeve 3. The fixed spring 63 will always push the stopper 61 to the right so that it can continue to block the lock tongue 2. The bottom end of the stopper 61 passes through and is slidably connected with a locking block 66 for fixing the stopper 61. The inner wall of the lock sleeve 3 is provided with a locking groove 68 for accommodating the locking block 66 near the left end of the stopper 61. The locking groove 68 and the locking block 66 are adapted to each other. When the locking block 66 is inserted into the locking groove 68, the stopper 61 will be fixed and cannot move left or right. The top of the locking block 66 is fixedly connected with a locking spring 67 for pushing the locking block 66. The top of the locking spring 67 is fixedly connected to the inner wall of the stopper 61. The locking spring 67 will always push the locking block 66 downward so that it can be inserted into the locking groove 68 in time. The bottom end of the locking groove 68 passes through and is slidably connected with an unlocking block 65 for pushing the locking block 66 to disengage from the locking groove 68.

[0033] Working principle: When the lock head 1 is damaged and the lock tongue 2 cannot be retracted, the shift block 58 can be first moved to drive the positioning plate 57 to disengage from the interior of the positioning groove 52, and then the protective plate 53 can be rotated to drive the protective plate 53 to disengage from the front end of the lock sleeve 3. At this time, the front end of the lock sleeve 3 will be exposed, and the operator can start to adjust the fixing component 6.

[0034] When the front end of the lock sleeve 3 is exposed, the key can be inserted into the interior of the lock cylinder 64 to unlock the lock cylinder 64, and then the key can be rotated to drive the lock cylinder 64 to rotate. The rotation of the lock cylinder 64 will drive the toothed ring 69 to rotate synchronously, and the rotation of the toothed ring 69 will drive the rack 62 to move to the left, and the stopper 61 will drive the locking block 66 to move to the left synchronously. When the bottom end of the locking block 66 is aligned with the locking groove 68, the locking spring 67 will push the locking block 66 downward to make it stuck in the locking groove 68. At this time, the stopper 61 will be fixed and cannot move left and right. At the same time, the stopper 61 will no longer block the lock tongue 2, and the operator can directly pull the door to open and close to drive the lock tongue 2 out of the lock groove 4.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic lock mechanical unlocking structure, comprising a lock head (1) and a lock sleeve (3), characterized in that: A lock tongue (2) is installed at the left end of the lock head (1), a lock slot (4) is provided at the right end of the lock sleeve (3), the lock tongue (2) is plugged into the inner wall of the lock slot (4), a protection component (5) is provided at the left end of the lock sleeve (3), the protection component (5) comprises a support frame (51), the right end of the support frame (51) is fixedly connected to the left end of the lock sleeve (3), the inner wall of the lock sleeve (3) is provided with a fixing component (6), the fixing component (6) comprises a stopper (61), and the stopper (61) is slidably connected to the inner wall of the lock sleeve (3) near the front end of the lock slot (4).

2. The electromagnetic lock mechanical unlocking structure according to claim 1, characterized in that: The protection assembly (5) further comprises a rotating block (55), the right end of the rotating block (55) being hinged to the left end of the support frame (51), the front end of the rotating block (55) being fixedly connected to a protection plate (53), and the right end of the protection plate (53) being fixedly connected to a rubber pad (54).

3. The electromagnetic lock mechanical unlocking structure according to claim 2, characterized in that: The inner wall of the rotating block (55) is slidably connected with a positioning plate (57), and the left end of the supporting frame (51) is provided with a positioning groove (52), and the positioning groove (52) and the positioning plate (57) are matched.

4. The electromagnetic lock mechanical unlocking structure according to claim 3, characterized in that: The left end of the positioning plate (57) is fixedly connected with a shift block (58), and the shift block (58) penetrates and is slidably connected to the rear end of the rotating block (55). The left end of the shift block (58) is fixedly connected with a positioning spring (56), and the left end of the positioning spring (56) is fixedly connected to the inner wall of the rotating block (55).

5. The electromagnetic lock mechanical unlocking structure according to claim 1, characterized in that: The fixing assembly (6) further comprises a lock core (64), wherein the lock core (64) is mounted on the inner wall of the lock sleeve (3), the outer wall of the lock core (64) is rotatably connected to a toothed ring (69), the left end of the stopper (61) is fixedly connected to a rack (62), and the rack (62) and the toothed ring (69) are meshed with each other.

6. The electromagnetic lock mechanical unlocking structure according to claim 5, characterized in that: The left end of the stopper (61) is fixedly connected to a fixing spring (63), and the left end of the fixing spring (63) is fixedly connected to the inner wall of the lock sleeve (3).

7. The electromagnetic lock mechanical unlocking structure according to claim 1, characterized in that: A locking block (66) is passed through and slidably connected to the bottom end of the stopper (61); a locking groove (68) is provided on the inner wall of the locking sleeve (3) near the left end of the stopper (61); and the locking groove (68) and the locking block (66) are matched.

8. The electromagnetic lock mechanical unlocking structure according to claim 7, characterized in that: The top end of the locking block (66) is fixedly connected to a locking spring (67), the top end of the locking spring (67) is fixedly connected to the inner wall of the stopper (61), and the bottom end of the locking groove (68) is penetrated and slidably connected to an unlocking block (65).

Images