CN220705407U - Electromagnetic lock - Google Patents

Abstract

The utility model discloses an electromagnetic lock, comprising: the lock comprises a lock shell, a first connecting piece and a second connecting piece, wherein the lock shell is provided with a containing cavity, one side surface of the lock shell is provided with a first mounting hole, a second mounting hole and a third mounting hole which are arranged in a triangle shape, a triangle area which is enclosed by the first mounting hole, the second mounting hole and the third mounting hole is a mounting area, and the mounting area is provided with a first boundary line which is connected with the first mounting hole and the second mounting hole; the locking assembly is arranged in the accommodating cavity and comprises a lock hook, a clamping hook, a first installation shaft and a second installation shaft, the lock hook is rotatably connected with the lock shell through the first installation shaft, the first installation shaft is positioned in the installation area, and the lock hook is provided with a clamping arm extending along a first boundary line; the clamping hook is rotatably connected with the lock shell through a second installation shaft, the second installation shaft is arranged adjacent to the first boundary line, the clamping hook is provided with a hooking part corresponding to the clamping arm, and the hooking part is used for hooking the clamping arm so that the clamping hook can limit the rotation of the locking hook. The technical scheme of the utility model is beneficial to compact structure of the electromagnetic lock.

Description

Electromagnetic lock

Technical Field

The utility model relates to the technical field of locks, in particular to an electromagnetic lock.

Background

Electromagnetic locks are commonly used in lockers such as vending cabinets, display cabinets, storage cabinets, locker cabinets, express cabinets and the like for locking the lockers.

The electromagnetic lock generally comprises a lock shell, and a lock hook, a clamping hook, an electromagnet, a micro switch and the like which are arranged in the lock shell, but the prior lock hook, the clamping hook, the electromagnet, the micro switch and the like are unreasonable in structural arrangement, so that the internal structure of the lock shell needs a larger space, and the whole size of the electromagnetic lock is large.

Disclosure of Invention

The utility model mainly aims to provide an electromagnetic lock, and aims to solve the technical problem that the electromagnetic lock cannot be installed.

In order to achieve the above object, the electromagnetic lock according to the present utility model includes:

the lock comprises a lock shell, wherein the lock shell is provided with a containing cavity, one side surface of the lock shell is provided with a first mounting hole, a second mounting hole and a third mounting hole which are arranged in a triangle shape, a triangle area which is enclosed by the first mounting hole, the second mounting hole and the third mounting hole is an installation area, and the installation area is provided with a first boundary line which is connected with the first mounting hole and the second mounting hole;

the locking assembly is arranged in the accommodating cavity and comprises a lock hook, a clamping hook, a first installation shaft and a second installation shaft, the lock hook is rotatably connected with the lock shell through the first installation shaft, the first installation shaft is positioned in the installation area, and the lock hook is provided with a clamping arm extending along a first boundary line;

the clamping hook is rotatably connected with the lock shell through the second installation shaft, the second installation shaft is adjacent to the first boundary line, the clamping hook is provided with a hooking part corresponding to the clamping arm, and the hooking part is used for hooking the clamping arm so that the clamping hook can limit the rotation of the locking hook.

Optionally, the distance between the center of the first mounting hole and the center of the second mounting hole is L ₁ The L is ₁ Greater than or equal to30mm and less than or equal to 32.6mm; the distance between the center of the second mounting hole and the center of the third mounting hole is L ₂ The L is ₂ Greater than or equal to 30mm and less than or equal to 32.6mm; the distance between the center of the third mounting hole and the center of the first mounting hole is L ₃ The L is ₃ Greater than or equal to 28.7mm and less than or equal to 29.3mm;

the second installation shaft is located outside the installation area, and the clamping hooks extend along the length direction of the accommodating cavity.

Optionally, the first mounting holes and the third mounting holes are arranged at intervals along the width direction of the lock shell;

the lock shell is provided with a first mounting hole and one end of a third mounting hole is provided with a locking notch which is communicated with the outer space of the containing cavity and the lock shell, the locking notch is positioned between the first mounting hole and the third mounting hole, and the locking notch is used for enabling an external lock catch to enter the containing cavity to be matched with the lock hook.

Optionally, the first mounting shaft is located on a side of the locking notch adjacent to the third mounting hole.

Optionally, the locking notch extends to the mounting area, and a distance L between the center of the first mounting hole and the edge of the locking notch ₄ The L is ₄ Is more than or equal to 10.4mm and less than or equal to 11mm, and the distance L between the center of the third mounting hole and the edge of the locking notch ₅ The L is ₅ Greater than or equal to 13.5mm and less than or equal to 14.1mm; and/or the number of the groups of groups,

the extension length of the locking notch is L ₆ The L is ₆ Greater than or equal to 12.1mm and less than or equal to 14.7mm.

Optionally, the mounting region has a second boundary line connecting the first mounting hole and the third mounting hole;

the latch hook includes with the rotation portion of first installation axle swivelling joint, and connect in the latch arm of rotation portion with the card arm, the card arm is located rotation portion is adjacent one side of second mounting hole, the latch arm is located rotation portion is adjacent one side of second boundary line, the latch arm extends to the locking notch, the latch arm with have the locked groove between the card arm, the locked groove is used for cooperating with outside hasp.

Optionally, the length of the locking arm is greater than the length of the locking arm, and the length direction of the locking arm is parallel to the length direction of the locking arm.

Optionally, the mounting region has a third boundary line connecting the third mounting hole and the second mounting hole;

the electromagnetic lock further comprises a micro switch, the micro switch is arranged in the accommodating cavity, the length direction of the micro switch extends to the mounting area through a third boundary line, the micro switch is located on one side, facing the second mounting hole, of the clamping arm, the clamping arm is provided with a propping portion corresponding to the elastic arm of the micro switch, and the propping portion is propped against the elastic arm and is propped against the propping portion.

Optionally, the hook extends along the length direction of the accommodating cavity;

the electromagnetic lock further comprises an electromagnet, the electromagnet is arranged in the accommodating cavity, the electromagnet is adjacent to the second mounting hole and is located outside the mounting area, the output end of the electromagnet is connected with one end, away from the first mounting hole, of the clamping hook, the electromagnet is used for driving the clamping hook to rotate, so that the clamping hook is driven by the electromagnet, and the clamping hook portion can be unhooked from the clamping arm.

Optionally, the length direction of the electromagnet is parallel to the arrangement direction of the first mounting hole and the third mounting hole.

According to the electromagnetic lock, the first mounting holes, the second mounting holes and the third mounting holes which are arranged in a triangular mode are formed in the lock shell, the triangular area which is formed by surrounding is the mounting area, and the mounting area is provided with the first boundary line which is connected with the first mounting holes and the second mounting holes. The latch hook is rotatably connected with the lock shell through the first mounting shaft, and the first mounting shaft is located in the mounting area, meanwhile, the latch hook is provided with a clamping arm extending towards the first boundary line, the latch hook is rotatably connected with the lock shell through the second mounting shaft, and the second mounting shaft is arranged adjacent to the first boundary line, the latch hook is provided with a hooking part corresponding to the clamping arm, and the hooking part is used for hooking the clamping arm, so that the hooking part can limit the latch hook to rotate, and a cabinet door connected with the latch is locked. Because the clamping arm extends towards the first boundary line, the second installation shaft is adjacent to the first boundary line, and meanwhile, the hooking part corresponds to the clamping arm, so that the latch hook and the hook are arranged compacter, the latch hook and the hook only occupy smaller space of the accommodating cavity, the lock shell can be arranged smaller, and when the electromagnetic lock is installed in the storage cabinet, the electromagnetic lock only occupies smaller space, and the space utilization efficiency of the storage cabinet is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an electromagnetic lock according to the present utility model;

FIG. 2 is a schematic view of an electromagnetic lock according to the present utility model, showing a perspective locking assembly mounted to a lock case;

FIG. 3 is a schematic view of another perspective locking assembly of the electromagnetic lock of the present utility model mounted to a lock housing;

FIG. 4 is a schematic view of an electromagnetic lock according to another embodiment of the present utility model, wherein a lock assembly is mounted to a lock case;

FIG. 5 is a schematic diagram of an electromagnetic lock latch of the present utility model for locking an outer latch hook;

fig. 6 is a schematic structural diagram of unlocking the electromagnetic lock hook and the lock catch of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						1	Lock shell	17	Notch	221	Hook holding part
11	Accommodating chamber	171	Edge wrapping	23	First mounting shaft
						12	First mounting hole	18	Limiting hole	24	Second mounting shaft
13	Second mounting hole	21	Latch hook	3	Micro-switch
						14	Third mounting hole	211	Rotation part	31	Spring arm
15	Mounting area	212	Lock arm	4	Electromagnet
						151	First boundary line	213	Clamping arm	41	An output terminal
152	Second boundary line	214	Abutting part	42	Limiting part
						153	Third boundary line	22	Hook	5	Lock catch
16	Lock opening

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model mainly provides an electromagnetic lock which is mainly used for locking a cabinet door of an installed cabinet, wherein the installed cabinet comprises an express cabinet, a locker, a sales counter, a jewelry cabinet and the like, the cabinet door is locked by using the electromagnetic lock, and three assembly holes which are distributed in an isosceles triangle are preset in the installed cabinet and are used for installing the electromagnetic lock.

The utility model provides an electromagnetic lock.

In an embodiment of the present utility model, as shown in fig. 1 to 6, the electromagnetic lock includes: the lock case 1, wherein the lock case 1 is provided with a containing cavity 11, one side surface of the lock case 1 is provided with a first mounting hole 12, a second mounting hole 13 and a third mounting hole 14 which are arranged in a triangle shape, the enclosed triangle area is a mounting area 15, and the mounting area 15 is provided with a first boundary line 151 for connecting the first mounting hole 12 and the second mounting hole 13; a locking assembly mounted in the accommodating cavity 11, the locking assembly comprising a lock hook 21, a hook 22, a first mounting shaft 23 and a second mounting shaft 24, the lock hook 21 being rotatably connected to the lock housing 1 by the first mounting shaft 23, the first mounting shaft 23 being located in the mounting area 15, the lock hook 21 having a catch arm 213 extending along a first boundary line 151; the hook 22 is rotatably connected with the lock case 1 through the second mounting shaft 24, the second mounting shaft 24 is disposed adjacent to the first boundary line 151, the hook 22 has a hooking portion 221 corresponding to the clamping arm 213, and the hooking portion 221 is used for hooking the clamping arm 213, so that the hook 22 can limit the rotation of the hook 21.

Specifically, in the present embodiment, the overall shape of the lock case 1 may be rectangular or square, and the present embodiment will be described taking a rectangular shape as an example. The lock case 1 is made of a metal material such as stainless steel, iron, aluminum, or the like. The interior of the lock housing 1 has a mounting cavity for mounting the locking assembly, the mounting cavity extending along the length direction of the lock housing 1. The first mounting hole 12, the second mounting hole 13 and the third mounting hole 14 are formed in one side face of the lock shell 1 and are distributed in a triangular shape, so that stability of the electromagnetic lock can be improved when the electronic lock is mounted. When the electromagnetic lock is mounted to the mounted cabinet, the first mounting hole 12, the second mounting hole 13, and the third mounting hole 14 of the lock case 1 may be connected by using bolts, rivets, pins, or the like through the metal plate of the mounted cabinet.

The locking hook 21 is intended to cooperate with the external catch 5 such that the door of the cabinet connected to the catch 5 is locked. The lock catch 5 may be inserted into the receiving cavity 11 in the lock housing 1 by providing a notch 17, opening or hole in the lock housing 1, etc. and connected to the lock catch 5. The first mounting shaft 23 may be welded to the lock case 1, or may be adhered to the lock case 1 by glue, where the first mounting shaft 23 is configured to rotatably mount the lock hook 21 on the lock case 1, so that the lock hook 21 may rotate relative to the lock case 1. So that the locking hook 21 can cooperate with the catch 5 entering the receiving chamber 11 and limit the withdrawal of the catch 5 from the receiving chamber 11. The first mounting shaft 23 is arranged in the lock housing 1 and is located in the mounting region 15, so that the locking hook 21 can be located at least partially in the mounting region 15. The clamping arm 213 extends toward the first boundary line 151, and the clamping arm 213 may extend beyond the first boundary line 151 or may be located in the mounting area 15, which is not limited herein.

The end of the second mounting shaft 24 is connected with the lock case 1, and the second mounting shaft 24 and the lock case 1 can be bonded by welding or glue. The second mounting shaft 24 may be located outside the mounting region 15 or within the mounting region 15, but the second mounting shaft 24 is not particularly limited herein, but the second mounting shaft 24 is disposed adjacent to the first boundary line 151, for example, when the second mounting shaft 24 is located within the mounting region 15, the catch arms 213 are all located within the mounting region 15, and the hooking portion 221 is also located within the mounting region 15, so that the hooking portion 221 can hook the catch arms 213. When the second mounting shaft 24 is located outside the mounting region 15, the catch arm 213 may extend out of the mounting region 15 so that the catch arm 213 is caught by the catch 221. When the lock catch 5 is matched with the lock hook 21, the lock catch 5 is locked under the matching of the lock hook 21 and the clamping hook.

According to the electromagnetic lock, the first mounting hole 12, the second mounting hole 13 and the third mounting hole 14 which are arranged in a triangle are arranged on the lock shell 1, the triangular area surrounded by the first mounting hole 12, the second mounting hole 13 and the third mounting hole 14 is the mounting area 15, and the mounting area 15 is provided with a first boundary line 151 for connecting the first mounting hole 12 and the second mounting hole 13. The locking hook 21 is rotatably connected with the lock housing 1 by means of a first mounting shaft 23 and the first mounting shaft 23 is located in the mounting area 15, while the locking hook 21 has a catch arm 213 extending towards the first borderline 151, the catch 22 is rotatably connected with the lock housing 1 by means of a second mounting shaft 24 and the second mounting shaft 24 is arranged adjacent to the first borderline 151, the catch 22 has a catch part 221 corresponding to the catch arm 213, the catch part 221 being adapted to catch the catch arm 213 such that the catch part 221 can delimit the rotation of the locking hook 21, thereby locking a cabinet door connected with the catch 5. Because the clamping arm 213 extends towards the first boundary line 151, the second mounting shaft 24 is adjacent to the first boundary line 151, and meanwhile, the hooking portion 221 is arranged corresponding to the clamping arm 213, so that the latch hook 21 and the latch hook 22 are arranged more compactly, the latch hook 21 and the latch hook 22 only occupy a smaller space of the accommodating cavity 11, so that the lock case 1 can be arranged smaller, and when the electromagnetic lock is mounted in the storage cabinet, the electromagnetic lock only occupies a smaller space, and the space utilization efficiency of the storage cabinet is improved.

In some examples, as shown in fig. 1 and 3, the distance between the center of the first mounting hole 12 and the center of the second mounting hole 13 is L ₁ The L is ₁ Greater than or equal to 30mm and less than or equal to 32.6mm; the center of the second mounting hole 13 is in contact with the third mounting hole 1 ₄ The distance between the circle centers is L ₂ The L is ₂ Greater than or equal to 30mm and less than or equal to 32.6mm; the distance between the center of the third mounting hole 14 and the center of the first mounting hole 12 is L ₃ The L is ₃ Greater than or equal to 28.7mm and less than or equal to 29.3mm; and/or the number of the groups of groups,

the second mounting shaft 24 is located outside the mounting area 15, and the hook 22 extends along the length direction of the accommodating cavity 11.

A distance L between the circle centers of the first mounting hole 12 and the second mounting hole 13 ₁ Is greater than or equal to 31mm and less than or equal to 31.6mm, and the distance L between the center of the second mounting hole 13 and the center of the third mounting hole 14 ₂ Is greater than or equal to 31mm and less than or equal to 31.6mm, and the distance L between the center of the third mounting hole 14 and the center of the first mounting hole 12 ₃ When the size of the clamping hook is larger than or equal to 27.7mm and smaller than or equal to 28.3mm, the lock shell 1 can be ensured to be more stable in installation, and the clamping hook 22 can be closer to the locking hook 21, so that the locking hook 21 and the clamping hook 22 are more compact.

The second mounting shaft 24 is located outside the mounting area 15, so that the length of the clamping arm 213 can be increased, the contact area between the hooking portion 221 and the clamping arm 213 can be increased, and the stability of the hooking portion 221 hooking the clamping arm 213 is improved. The hook 22 extends along the length direction of the accommodating cavity 11, so that the length of the accommodating cavity 11 can be fully utilized.

In some examples, as shown in fig. 3, the first mounting holes 12 and the third mounting holes 14 are arranged at intervals in the width direction of the lock case 1; the lock case 1 is provided with a locking opening 16 at one end of the first mounting hole 12 and the third mounting hole 14, the locking opening 16 is communicated with the external space between the accommodating cavity 11 and the lock case 1, the locking opening 16 is located between the first mounting hole 12 and the third mounting hole 14, and the locking opening 16 allows the external lock catch 5 to enter the accommodating cavity 11 to be matched with the lock hook 21. The locking opening 16 is located at one end of the lock case 1 with the first mounting hole 12 and the third mounting hole 14 and located between the first mounting hole 12 and the third mounting hole 14, so that interference with other structures when the external lock catch 5 enters the accommodating cavity 11 can be avoided.

In some examples, as shown in fig. 3, the first mounting shaft 23 is located on a side of the locking notch 16 adjacent to the third mounting hole 14. The first mounting shaft 23 is disposed on a side of the locking opening 16 adjacent to the third mounting hole 14, which is beneficial to increasing the length of the clamping arm 213, so that the length of the clamping arm 213 hooked by the hooking portion 221 can be increased, and the stability of the clamping arm 213 can be improved. Specifically, in some examples, the first mounting shaft 23 is located at an end of the locking notch 16 adjacent to the second mounting hole 13 such that the locking catch 5 may be restrained within an end of the locking notch 16 by the locking hook 21 as the external locking catch 5 enters the receiving cavity 11 through the locking notch 16.

In some examples, as shown in fig. 1 and 4, the first mounting hole 12 has a spacing L between the center of the circle and the edge of the locking notch 16 ₄ The L is ₄ Is greater than or equal to 10.4mm and less than or equal to 11mm, and the distance between the center of the third mounting hole 14 and the edge of the locking notch 16 is L ₅ The L is ₅ Greater than or equal to 13.5mm and less than or equal to 14.1mm; and/or the number of the groups of groups,

the extension length of the locking notch 16 is L ₆ The L is ₆ Greater than or equal to 12.1mm and less than or equal to 14.7mm.

Spacing L between the center of a mounting hole and the edge of the locking notch 16 ₄ Greater than or equal to 10.4mm and less than or equal to 11mm, and the distance L between the center of the third mounting hole 14 and the edge of the locking notch 16 ₅ When the width of the locking notch 16 is larger than or equal to 13.5mm and smaller than or equal to 14.1mm, the situation that the external lock catch 5 cannot enter due to the fact that the width of the locking notch 16 is too small can be avoided, and waste due to the fact that the locking notch 16 is too large can be avoided.

At the extension L of the locking notch 16 ₆ When the locking notch 16 is larger than or equal to 12.1mm and smaller than or equal to 14.7mm, the situation that the length of the locking notch 16 is too long to affect the assembly of other things can be avoided, and when the lock catch 5 enters the accommodating cavity 11 through the locking notch 16, the locking notch 16 can limit the lock catch 5, so that the stability of the lock catch 5 is improved.

In some examples, as shown in fig. 3 and 4, the mounting region 15 has a second boundary line 152 connecting the first mounting hole 12 and the third mounting hole 14; the latch hook 21 includes a rotating portion 211 rotatably connected to the first mounting shaft 23, and a latch arm 212 and a latch arm 213 connected to the rotating portion 211, the latch arm 213 being located at a side of the rotating portion 211 adjacent to the second mounting hole 13, the latch arm 212 being located at a side of the rotating portion 211 adjacent to the second boundary line 152, the latch arm 212 extending to the latch opening 16, the latch arm 212 and the latch arm 213 having a latch groove therebetween for mating with the external latch 5.

The rotation portion 211 is used to connect the lock arm 212 and the catch arm 213 such that the lock arm 212 and the catch arm 213 can be rotatably connected to the lock housing 1 by the rotation portion 211. The locking arm 212 is located on the side of the rotation portion 211 adjacent to the second borderline 152, avoiding the need for a longer locking arm 212 to be connected to the shackle 5 when the external locking mouth 16 extends into the receiving cavity 11, reducing the space in which the locking arm 212 interferes. The extension of the locking arm 212 to the locking notch 16 facilitates the engagement of the locking arm 212 with the shackle 5 extending externally into the receiving cavity 11. The lock groove is formed between the lock arm 212 and the clamping arm 213, so that other structures are prevented from being arranged on the lock arm 212, the structure of the lock arm 212 is simplified, and meanwhile, the arrangement of the lock groove is beneficial to improving the stability of the lock catch 5 and the lock arm 212. The locking arm 213 is located at one side of the rotating portion 211 adjacent to the second mounting hole 13, so as to avoid interference between the locking buckle 5 and the locking arm 213 after entering the accommodating cavity 11.

In some examples, as shown in fig. 3, the length of the locking arm 213 is greater than the length of the locking arm 212, and the length direction of the locking arm 213 is parallel to the length direction of the locking arm 212. The length of catch arm 213 is greater than the length of latch arm 212. The stability of the connection between the latch arm 213 and the latch hook 21 can be improved, the space occupied by the latch arm 212 when rotating along with the rotating part 211 can be reduced, and the compactness of the latch hook 21 can be further improved.

In some examples, as shown in fig. 3 and 4, the mounting region 15 has a third boundary line 153 connecting the third mounting hole 14 and the second mounting hole 13; the electromagnetic lock further comprises a micro switch 3, the micro switch 3 is arranged in the accommodating cavity 11, the length direction of the micro switch 3 extends to the mounting area 15 through a third boundary line 153, the micro switch 3 is located at one side of the clamping arm 213 facing the second mounting hole 13, the clamping arm 213 is provided with a propping portion 214 corresponding to the spring arm 31 of the micro switch 3, and the propping portion 214 is propped against the spring arm 31 and the propping portion 214. The micro switch 3 is used for confirming the locking state and unlocking state of the latch hook 21, when the clamping arm 213 of the latch hook 21 is hooked with the hooking part 221 of the hook 22, the abutting part abuts against the spring arm 31, at this time, the micro switch 3 obtains the state of the latch hook 21 as the locking state, when the clamping arm 213 of the latch hook 21 is unhooked with the hooking part 221 of the hook 22, the spring arm 31 is separated from the abutting part, at this time, the micro switch 3 can confirm that the latch hook 21 is in the unlocking state. The extension of the length direction of the micro switch 3 to the mounting area 15 can fully utilize the area of the mounting area 15 adjacent to the edge of the second mounting hole 13, so that the positions of the micro switch 3 and the latch hook 21 are more compact.

In some examples, as shown in fig. 3 and 4, the hook 22 extends along the length of the accommodating cavity 11; the electromagnetic lock further comprises an electromagnet 4, the electromagnet 4 is arranged in the accommodating cavity 11, the electromagnet 4 is adjacent to the second mounting hole 13 and is located outside the mounting area 15, an output end 41 of the electromagnet 4 is connected with one end of the clamping hook 22 away from the first mounting hole 12, the electromagnet 4 is used for driving the clamping hook 22 to rotate, so that the clamping hook 22 is driven by the electromagnet 4, and the clamping hook 22 can be unhooked from the clamping arm 213. The electromagnet 4 is adjacent to the second mounting hole 13 and is positioned outside the mounting area 15, so that the length of the clamping hook 22 can be fully utilized, the space of the accommodating cavity 11 can be fully utilized, and the arrangement compactness of the electromagnet 4, the locking hook 21 and the lock catch 5 is improved. Meanwhile, since the electromagnet 4 is located at one end of the buckle, the force of the driving hook 22 can be reduced when the electromagnet 4 drives the hook 22 to rotate.

In some examples, as shown in fig. 1 to 6, the length direction of the electromagnet 4 is parallel to the arrangement direction of the first mounting hole 12 and the third mounting hole 14. The length direction of the electromagnet 4 is parallel to the arrangement direction of the first mounting hole 12 and the second mounting hole 13, so that the electromagnet 4 can be prevented from occupying a large space when being inclined, and the electromagnet 4 can be conveniently mounted in the mounting cavity.

In some examples, as shown in fig. 1 to 6, an end of the lock case 1 away from the locking port 16 has a reset notch 17, the reset notch 17 communicates with the accommodating cavity 11, a sidewall forming the reset notch 17 has a binding 171 extending in a thickness direction of the lock case 1, and the binding 171 extends from one side of the lock case 1 having the first mounting hole 12, the second mounting hole 13, and the third mounting hole 14 toward the other side; one end of the electromagnet 4 with a connecting shaft can be directly or indirectly abutted against the wrapping edge 171, and the other end of the electromagnet 4 is abutted against the cavity wall of the accommodating cavity 11.

The reset notch 17 is used for manually driving the hook 22 to rotate, so that the hook part can be unhooked from the limiting arm. One end of the electromagnet 4 with an output shaft can be directly or indirectly abutted against the covered edge 171, and the other end of the electromagnet is abutted against the cavity wall of the accommodating cavity 11, so that convenience in installing the electromagnet 4 is improved. Specifically, the edge 171 has an avoiding hole through which the output shaft of the electromagnet 4 passes, so that the area of the electromagnet 4 abutting against the edge 171 can be increased, and the stability of electromagnetic installation can be improved.

In some examples, as shown in fig. 2 and 4, an end of the electromagnet 4 having an output shaft is provided with a connecting plate, and the plate surface of the connecting plate is larger than the end surface of the electromagnet 4 having the output shaft, and the connecting plate abuts against the wrapping 171. The contact area of the electromagnet 4 and the binding 171 is further increased through the contact of the connecting plate and the binding 171, and the installation stability of the electromagnet 4 is improved.

In some examples, as shown in fig. 4, the electromagnet 4 has a limiting portion 42 at an end facing away from the output end 41, and the lock case 1 has a limiting hole 18, and the limiting portion 42 is engaged with the limiting hole 18.

The limiting part 42 can be rod-shaped or strip-shaped, and when the limiting part 42 is arranged in the limiting hole 18, the displacement of the electromagnet 4 in the accommodating cavity 11 can be limited, so that the stability of the lock case 1 is further improved.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. An electromagnetic lock, the electromagnetic lock comprising:

the lock comprises a lock shell, wherein the lock shell is provided with a containing cavity, one side surface of the lock shell is provided with a first mounting hole, a second mounting hole and a third mounting hole which are arranged in a triangle shape, a triangle area which is enclosed by the first mounting hole, the second mounting hole and the third mounting hole is an installation area, and the installation area is provided with a first boundary line which is connected with the first mounting hole and the second mounting hole;

the locking assembly is arranged in the accommodating cavity and comprises a lock hook, a clamping hook, a first installation shaft and a second installation shaft, the lock hook is rotatably connected with the lock shell through the first installation shaft, the first installation shaft is positioned in the installation area, and the lock hook is provided with a clamping arm extending along a first boundary line;

the clamping hook is rotatably connected with the lock shell through the second installation shaft, the second installation shaft is adjacent to the first boundary line, the clamping hook is provided with a hooking part corresponding to the clamping arm, and the hooking part is used for hooking the clamping arm so that the clamping hook can limit the rotation of the locking hook.

2. The electromagnetic lock according to claim 1, wherein a distance between the center of the first mounting hole and the center of the second mounting hole is L ₁ The L is ₁ Greater than or equal to 30mm and less than or equal to 32.6mm; the distance between the center of the second mounting hole and the center of the third mounting hole is L ₂ The L is ₂ Greater than or equal to 30mm and less than or equal to 32.6mm; the distance between the center of the third mounting hole and the center of the first mounting hole is L ₃ The L is ₃ Greater than or equal to 28.7mm and less than or equal to 29.3mm;

the second installation shaft is located outside the installation area, and the clamping hooks extend along the length direction of the accommodating cavity.

3. The electromagnetic lock according to claim 1, wherein the first mounting holes and the third mounting holes are arranged at intervals in a width direction of the lock case;

the lock shell is provided with a first mounting hole and one end of a third mounting hole is provided with a locking notch which is communicated with the outer space of the containing cavity and the lock shell, the locking notch is positioned between the first mounting hole and the third mounting hole, and the locking notch is used for enabling an external lock catch to enter the containing cavity to be matched with the lock hook.

4. The electromagnetic lock according to claim 3, wherein the first mounting shaft is located on a side of the locking notch adjacent the third mounting hole.

5. The electromagnetic lock according to claim 3, wherein the locking notch extends to the mounting area, and a distance L between a center of the first mounting hole and an edge of the locking notch ₄ The L is ₄ Is more than or equal to 10.4mm and less than or equal to 11mm, and the distance L between the center of the third mounting hole and the edge of the locking notch ₅ The L is ₅ Greater than or equal to 13.5mm and less than or equal to 14.1mm; and/or the number of the groups of groups,

the extension length of the locking notch is L ₆ The L is ₆ Greater than or equal to 12.1mm and less than or equal to 14.7mm.

6. The electromagnetic lock according to claim 3, wherein the mounting region has a second boundary line connecting the first mounting hole and the third mounting hole;

the latch hook includes with the rotation portion of first installation axle swivelling joint, and connect in the latch arm of rotation portion with the card arm, the card arm is located rotation portion is adjacent one side of second mounting hole, the latch arm is located rotation portion is adjacent one side of second boundary line, the latch arm extends to the locking notch, the latch arm with have the locked groove between the card arm, the locked groove is used for cooperating with outside hasp.

7. The electromagnetic lock according to claim 6, wherein the length of the locking arm is greater than the length of the locking arm, and the length direction of the locking arm is parallel to the length direction of the locking arm.

8. The electromagnetic lock according to claim 6, wherein the mounting region has a third boundary line connecting the third mounting hole and the second mounting hole;

the electromagnetic lock further comprises a micro switch, the micro switch is arranged in the accommodating cavity, the length direction of the micro switch extends to the mounting area through a third boundary line, the micro switch is located on one side, facing the second mounting hole, of the clamping arm, the clamping arm is provided with a propping portion corresponding to the elastic arm of the micro switch, and the propping portion is propped against the elastic arm and is propped against the propping portion.

9. The electromagnetic lock according to claim 8, wherein the hook extends along a length of the receiving cavity;

the electromagnetic lock further comprises an electromagnet, the electromagnet is arranged in the accommodating cavity, the electromagnet is adjacent to the second mounting hole and is located outside the mounting area, the output end of the electromagnet is connected with one end, away from the first mounting hole, of the clamping hook, the electromagnet is used for driving the clamping hook to rotate, so that the clamping hook is driven by the electromagnet, and the clamping hook portion can be unhooked from the clamping arm.

10. The electromagnetic lock according to claim 9, wherein a length direction of the electromagnet is parallel to an arrangement direction of the first mounting hole and the third mounting hole.