Electronic lock for bookcase

Abstract

The utility model provides an electronic lock for a bookcase. The electronic lock comprises an upper cover and a lower cover, a clamping hook is arranged on the lower cover; the clamping hook comprises a main body part, a first extension part and a second extension part, the main body part is rotationally connected to the lower cover, the second extension part is fixedly connected to the main body part, an insertion groove is formed in the position, corresponding to the first extension part, of one side of the main body, an insertion rod is fixedly connected to the first extension part, the insertion rod can be inserted into the insertion groove, and the insertion rod can be inserted into the insertion groove. A through groove is formed in the main body part, a threaded groove is formed in the insertion rod, and a bolt capable of penetrating through the insertion groove can be in threaded connection in the threaded groove; and a clamping groove is formed between the first extension part and the second extension part. According to the electronic lock for the bookcase, the first extension part can be independently replaced to repair the clamping hook by unscrewing the bolt, so that the clamping hook can be continuously used, maintenance is convenient, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electronic locks, in particular to an electronic lock for a bookcase. Background Art

[0002] Common self-service bookcases on the market usually require electronic locks to secure the cabinet doors to protect the books inside the bookcases.

[0003] Most existing electronic locks are electromagnetic locks, which use electromagnets to control the rotation of a locking member and control the engagement of a slot on the locking member with a door bolt.

[0004] However, the current electronic lock locking member is an integrated structure. When the lock body is in use, if it is forcibly pulled, it is easy to cause partial damage to the groove formed by the locking member. At this time, the lock body needs to be disassembled and the locking member needs to be replaced, which is costly and troublesome to repair. Utility Model Content

[0005] Based on the above situation, the main purpose of the utility model is to provide an electronic lock for a bookcase to solve the problem that the current electronic lock has an integrated locking part. When the lock body is in use, if it is forcibly pulled with great force, it is easy to cause partial damage to the groove formed by the locking part. At this time, the lock body needs to be disassembled and the locking part needs to be replaced, which is costly and troublesome to maintain.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An electronic lock for a bookcase, comprising an upper cover and a lower cover;

[0008] The lower cover is provided with a hook;

[0009] The hook comprises a main body, a first extension and a second extension, wherein the main body is rotatably connected to the lower cover, the second extension is fixedly connected to the main body, a slot is provided at a position corresponding to the first extension on one side of the main body, an insertion rod is fixedly connected to the first extension, and the insertion rod can be inserted into the slot, a through slot is provided on the main body, and a threaded groove is provided on the insertion rod, and a bolt capable of passing through the slot can be threadedly connected in the threaded groove;

[0010] A slot is formed between the first extending portion and the second extending portion.

[0011] Preferably, the through slot is formed on a side of the main body close to the upper cover, and a countersunk hole is formed on one end of the through slot close to the upper cover.

[0012] Preferably, a rubber ring is fixedly connected in the countersunk hole.

[0013] Preferably, a long groove is provided on one side of the upper cover and the lower cover, and a circular hole is provided on the surface of the upper cover at a position corresponding to the through groove, and the diameter of the circular hole is larger than the diameter of the thread groove.

[0014] Preferably, a stop block and an electromagnet are also provided on the lower cover;

[0015] The middle part of the stop block is rotatably connected to the lower cover, the stop block is located at the lower side of the hook, a protrusion is fixedly connected to the lower side of the second extension part, a groove is provided on one side of the stop block, the protrusion can be snapped into the groove, and a connecting rod is fixedly connected to one end of the stop block, and the connecting rod can be connected to the electromagnet.

[0016] Preferably, it further comprises a push rod, the stop block and the hook are engaged, and the push rod is in a retracted state;

[0017] The lower cover is provided with a first torsion spring, a second torsion spring, a first travel switch and a second travel switch;

[0018] The first torsion spring is sleeved on the rotation connection of the main body, and the second torsion spring is sleeved on the rotation connection of the stop block;

[0019] The first travel switch is located at one end of the push rod, the end of the push rod can abut against the first travel switch, and one end of the stop block can abut against the second travel switch.

[0020] The beneficial effects of the utility model are as follows: the card hook of the electronic lock of the present application is composed of a split body, and the first extension part thereof forming the card slot can be fixed by a bolt. When in use, if the cabinet door is forcibly opened, the card slot of the electronic lock may be damaged, and the door bolt will be pulled outward, and the first part to be damaged is the position of the first extension part. After the card hook is damaged, the card hook can be repaired by unscrewing the bolt and replacing the first extension part alone, so that the card hook can continue to be used, which is convenient for maintenance and reduces costs.

[0021] Other beneficial effects of the utility model will be explained through the introduction of specific technical features and technical solutions in the specific implementation manner. Through the introduction of these technical features and technical solutions, those skilled in the art should be able to understand the beneficial technical effects brought about by the technical features and technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a three-dimensional structural schematic diagram of an electronic lock for a bookcase.

[0023] Figure 2 The utility model is a structural schematic diagram showing a hook of an electronic lock for a bookcase.

[0024] Figure 3The utility model is an exploded schematic diagram of a hook of an electronic lock for a bookcase.

[0025] Figure 4 The utility model is a schematic structural diagram of a hook of an electronic lock for a bookcase.

[0026] Figure 5 The utility model is a cross-sectional view of an electronic lock for a bookcase.

[0027] Description of reference numerals:

[0028] 1. Lower cover; 11. Long groove; 12. Round hole; 2. Upper cover; 3. Hook; 31. Main body; 311. Slot; 312. Through groove; 313. Countersunk hole; 314. Rubber ring; 32. First extension; 321. Insert rod; 322. Threaded groove; 33. Second extension; 331. Protrusion; 34. First torsion spring; 4. Stop block; 41. Groove; 42. Connecting rod; 43. Second torsion spring; 5. Electromagnet; 51. Sliding rod; 6. Push rod; 61. Push spring; 7. First travel switch; 8. Second travel switch. DETAILED DESCRIPTION

[0029] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail. In order to avoid confusing the essence of the present invention, known methods, processes, procedures, and components are not described in detail.

[0030] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0031] Unless the context clearly requires otherwise, throughout the specification and claims, the words "include", "comprising" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, in the sense of "including but not limited to".

[0032] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0033] Reference Figure 1-5The utility model provides an electronic lock for a bookcase, comprising an upper cover 2 and a lower cover 1, which are buckled and fixed, and can be reinforced by bolts. A hook 3, a stop block 4, an electromagnet 5 and a push rod 6 are provided on the lower cover 1. When the electronic lock for the bookcase is in a locked state, the hook 3 can be buckled with the bolt on the cabinet door, the stop block 4 is buckled with the hook 3, and the push rod 6 is in a retracted state. The electromagnet 5 is connected to the stop block 4. When unlocking, the electromagnet 5 receives an unlocking signal to drive the stop block 4 to move, the stop block 4 is disengaged from the engagement with the hook 3, the hook 3 is disengaged from the bolt, and the push rod 6 is pushed out, so that the cabinet door pops open.

[0034] The hook 3 includes a main body 31, a first extension 32 and a second extension 33. The main body 31 is rotatably connected to the lower cover 1, and the first extension 32 and the second extension 33 are fixed to one side of the main body 31 and are arranged at a distance. A slot is formed between the first extension 32 and the second extension 33, and the bolt can be engaged in the slot when the electronic lock is locked.

[0035] Specifically, the second extension part 33 is fixed to the main body 31, and the first extension part 32 is detachably connected to the main body 31. A slot 311 is provided on one side of the main body 31 at a position corresponding to the first extension part 32, and a plug rod 321 is fixed to the first extension part 32, and the plug rod 321 can be inserted into the slot 311. A through slot 312 is provided on the main body 31, and a threaded groove 322 is provided on the plug rod 321, and a bolt that can penetrate the slot 311 can be threadedly connected in the threaded groove 322. The hook 3 of the electronic lock of the present application is composed of split parts, and the first extension part 32 forming the slot can be fixed by bolts. When in use, if the cabinet door is forcibly opened, the slot of the electronic lock may be damaged, and the door bolt is pulled outward, and the first part to be damaged is the position of the first extension part 32. After the hook 3 is damaged, the hook 3 can be repaired by unscrewing the bolt and replacing the first extension part 32 separately, so that the hook 3 can continue to be used, which is convenient for maintenance and reduces costs.

[0036] As an embodiment, the through slot 312 is provided on one side of the main body 31 close to the upper cover 2, and a countersunk hole 313 is provided at one end of the through slot 312 close to the upper cover 2. The countersunk hole 313 can accommodate the head of the bolt, thereby reducing the internal space occupied by the bolt. Furthermore, a rubber ring 314 is fixed in the countersunk hole 313 to prevent the bolt from loosening due to external forces such as vibration, resulting in the door bolt being unable to be stably engaged in the slot.

[0037] As an embodiment, a long slot 11 is provided on one side of the upper cover 2 and the lower cover 1, and the bolt can enter through the long slot 11 and be inserted into the slot. A round hole 12 is provided on the surface of the upper cover 2 at a position corresponding to the through hole, and the diameter of the round hole 12 is larger than the diameter of the threaded hole. When the hook 3 is damaged, the staff can remove the bolt of the first extension part 32 from the round hole 12, remove the first extension part 32 from the long slot 11, and then put the new first extension part 32 into the slot 311, and tighten the bolt through the round hole 12 to complete the quick replacement of the first extension part 32.

[0038] The middle part of the stop block 4 is rotatably connected to the lower cover 1. The stop block 4 is located at the lower side of the hook 3. A protrusion 331 is fixedly connected to the lower side of the second extension portion 33. A groove 41 is provided on one side of the stop block 4. When the electronic lock is locked, the protrusion 331 can be snapped into the groove 41. One end of the stop block 4 is fixedly connected to a connecting rod 42, and the connecting rod 42 can be connected to the electromagnet 5. A slide bar 51 is provided at the lower side of the electromagnet 5. The slide bar 51 can move upward with the operation of the electromagnet 5. After installation, the connecting rod 42 can be inserted into the slide bar 51. After the electromagnet 5 receives the electrical signal, it can drive the connecting rod 42 to move upward, thereby driving the stop block 4 to rotate counterclockwise. It should be understood that the slide bar 51 in the attached figure is not extended and is in the initial uninstalled state. It can be extended during installation for the connecting rod 42 to pass through.

[0039] The lower cover 1 is provided with a first torsion spring 34 and a second torsion spring 43. The first torsion spring 34 is sleeved on the rotation connection of the main body 31 of the hook 3. Under normal conditions, the first torsion spring 34 can drive the hook 3 to rotate clockwise. The second torsion spring 43 is sleeved on the rotation connection of the stop block 4. Under normal conditions, the second torsion spring 43 can drive the stop block 4 to rotate clockwise and drive the stop block 4 to reset. The lower cover 1 is also provided with a first travel switch 7 and a second travel switch 8. The first travel switch 7 is provided at one end of the push rod 6. The push rod 6 is provided with a push spring 61 on its outer sleeve to help the push rod 6 to pop out. When the push rod 6 is located in the lower cover 1, the push rod 6 can contact the first travel switch 7. When the protrusion 331 is disengaged from the groove 41, one end of the stop block 4 can contact the second travel switch 8. When the electronic lock is unlocked, the electromagnet 5 receives the current signal, causing the slide bar 51 to move upward, driving the stop block 4 to rotate counterclockwise, and under the action of the first torsion spring 34, the hook 3 rotates clockwise, so that the bolt can be disengaged from the slot, completing the unlocking. When closing the cabinet door, the bolt needs to be pushed into the slot, driving the hook 3 to rotate counterclockwise, and the protrusion 331 is engaged with the groove 41, completing the locking of the electronic lock.

[0040] The implementation principle of the utility model is as follows: the card hook 3 of the electronic lock of the present application is composed of a split body, and the first extension part 32 forming the card slot can be fixed by bolts. When in use, if the cabinet door is forcibly opened, the card slot of the electronic lock may be damaged, and the door bolt is pulled outward, and the first part to be damaged is the position of the first extension part 32. After the card hook 3 is damaged, the card hook 3 can be repaired by unscrewing the bolts and replacing the first extension part 32 separately, so that the card hook 3 can continue to be used, which is convenient for maintenance and reduces costs.

[0041] Those skilled in the art will appreciate that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0042] It should be understood that the above-mentioned embodiments are merely illustrative and not restrictive. Without departing from the basic principles of the present invention, various obvious or equivalent modifications or substitutions that can be made by technicians in this field to the above details will be included in the scope of the claims of the present invention.

Claims

1. An electronic lock for a bookcase, characterized in that: Including an upper cover and a lower cover; The lower cover is provided with a hook; The hook comprises a main body, a first extension and a second extension, wherein the main body is rotatably connected to the lower cover, the second extension is fixedly connected to the main body, a slot is provided at a position corresponding to the first extension on one side of the main body, an insertion rod is fixedly connected to the first extension, and the insertion rod can be inserted into the slot, a through slot is provided on the main body, and a threaded groove is provided on the insertion rod, and a bolt capable of passing through the slot can be threadedly connected in the threaded groove; A slot is formed between the first extending portion and the second extending portion.

2. An electronic lock for a bookcase as claimed in claim 1, characterized in that: The through slot is arranged on one side of the main body close to the upper cover, and a countersunk hole is arranged on one end of the through slot close to the upper cover.

3. An electronic lock for a bookcase as claimed in claim 2, characterized in that: A rubber ring is fixedly connected in the countersunk hole.

4. The electronic lock for bookcase as claimed in claim 2, characterized in that: A long groove is provided on one side of the upper cover and the lower cover, and a circular hole is provided on the surface of the upper cover at a position corresponding to the through groove, and the diameter of the circular hole is larger than the diameter of the thread groove.

5. The electronic lock for bookcase as claimed in claim 1, characterized in that: The lower cover is also provided with a stop block and an electromagnet; The middle part of the stop block is rotatably connected to the lower cover, the stop block is located at the lower side of the hook, a protrusion is fixedly connected to the lower side of the second extension part, a groove is provided on one side of the stop block, the protrusion can be snapped into the groove, and a connecting rod is fixedly connected to one end of the stop block, and the connecting rod can be connected to the electromagnet.

6. An electronic lock for a bookcase as claimed in claim 5, characterized in that: It also includes a push rod, the stop block and the hook are engaged, and the push rod is in a retracted state; The lower cover is provided with a first torsion spring, a second torsion spring, a first travel switch and a second travel switch; The first torsion spring is sleeved on the rotation connection of the main body, and the second torsion spring is sleeved on the rotation connection of the stop block; The first travel switch is located at one end of the push rod, the end of the push rod can abut against the first travel switch, and one end of the stop block can abut against the second travel switch.

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