TWI843575B - Concealed key device - Google Patents

Abstract

A concealed key device includes a key unit and a lock unit. The key unit includes a key body and an unlocking feature disposed on the key body. The key body is tubular and has an opposite tube outer surface and a tube inner surface. The lock unit includes a lock body detachably connected with the key body, a lock hole arranged on the lock body and a buckle arranged on the lock body. The shape of the lock hole corresponds to the tubular shape of the key body. The unlocking feature is disposed on the inner surface of the tube. The key body has the purpose of hiding the unlocking feature.

Description

Hidden key device

The present invention relates to a key device, in particular to a hidden key device.

There are many types of traditional keys, but no matter what kind of key structure, the teeth or beads will appear on the outside of the key body. For interested professionals, they only need to see or touch to know the unlocking characteristics of the teeth or beads on the key surface, resulting in the disadvantage that current keys have the disadvantage of being easily copied.

Please refer to FIG. 1 , which is a traditional key structure 1. The key structure 1 includes a key body 11, an unlocking feature 12 disposed on the key body 11, a grip plate 13 connected to the key body 11, and a positioning protrusion 14 disposed on the key body 11. The unlocking feature 12 belongs to a structure of plum blossom beads. Regardless of the structure of the row beads, plum blossom beads or bullet beads, the unlocking feature 12 is directly presented on the surface of the key body 11. Although it is difficult for ordinary people to understand, professionals can see the unlocking feature at a glance and copy an identical key based on memory.

From the above description, it can be seen that the current key structure has the following disadvantages:

1. Security risks: Since the unlocking features on the general key body are located on the outer surface, they are not only easy to see but also easy to touch. Professionals can crack the unlocking features by sight or touch, reproduce the same key based on memory, and unlock the lock. Therefore, using general keys has security risks.

2. Unable to send out a sound for help: A whistle is a self-defense tool or warning tool that can be carried with you. It can transmit a warning sound to alert people around to come to help. However, the current key does not have a structure that can send out a sound, so the key alone cannot send out a sound for help.

Therefore, how to design a key that can hide the unlocking features, prevent someone from visually or tactilely cracking the unlocking features on the key, and provide personnel with an alarm sound in an emergency is a goal that relevant technical personnel urgently need to work hard on.

In view of this, an object of the present invention is to provide a hidden key device.

The hidden key device includes a key unit and a lock unit.

The key unit includes a key body and an unlocking feature arranged on the key body. The key body is tubular and has an outer tube surface and an inner tube surface opposite to each other. The unlocking feature is arranged on the inner tube surface.

The lock unit includes a lock body detachably connected to the key body, a keyhole arranged on the lock body, and a lock buckle arranged on the lock body, wherein the shape of the keyhole corresponds to the tubular shape of the key body.

Another technical means of the present invention is that the unlocking feature has a plurality of grooves arranged on the inner surface of the tube, each groove extending inwardly from the tubular cutout of the key body.

Another technical means of the present invention is that the key unit further includes a holding body connected to the key body.

Another technical means of the present invention is that the key unit further includes a through hole arranged on the holding body.

Another technical means of the present invention is that the key unit further includes an audio generating structure disposed on the key body.

Another technical means of the present invention is that the key unit further includes a positioning body arranged on the key body, and the lock unit further includes a positioning hole arranged on the lock body, and the positioning body and the positioning hole cooperate with each other.

Another technical means of the present invention is that the positioning body is arranged on the key body and located on the inner surface of the tube.

Another technical means of the present invention is that the positioning body is arranged on the key body and located on the outer surface of the tube.

Another technical means of the present invention is to arrange the unlocking feature and the outer surface of the tube at a distance.

Another technical means of the present invention is that the lock unit further includes a manual operating body arranged on the lock body.

The beneficial effect of the present invention is that the key body is a tubular structure having an inner surface and an outer surface, and the outer structure is arranged on the inner surface of the tube, rather than on the outer surface of the tube, so that the unlocking feature cannot be easily obtained from the outside of the key body by visual or tactile means.

The related patent application features and technical contents of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings.

2, 3 and 4, which are a preferred embodiment of a hidden key device of the present invention, the hidden key device comprises a key unit 3 and a lock unit 4.

The key unit 3 includes a key body 31, an unlocking feature 32 disposed on the key body 31, a holding body 33 connected to the key body 31, a through hole 34 disposed on the holding body 33, an audio generating structure 35 disposed on the key body 31, and a positioning body 36 disposed on the key body 31. The key body 31 is in the form of a tube. The key body 31 has a relative outer tube surface 311 and an inner tube surface 312. In the preferred embodiment, the appearance of the key body 31 is a cylindrical tube. In actual implementation, the appearance of the key body 31 can be a square tube, a polygonal tube, a polygonal star tube (such as a pentagram, a hexagram, etc.), etc., and should not be limited to the examples in this preferred embodiment.

The lock unit 4 includes a lock body 41 detachably connected to the key body 31, a lock hole 42 arranged on the lock body 41, a lock buckle 43 arranged on the lock body 41, a positioning hole 44 arranged on the lock body 41 and a manual operating body 45 arranged on the lock body 41. The function of the lock unit 4 is the same as that of a general lock, and can be arranged on a door body to lock the door body to the door frame.

The unlocking feature 32 is disposed on the inner surface 312 of the tube, and the outer surface 311 of the tube is smooth. The unlocking feature 32 is spaced apart from the outer surface 311 of the tube, so that the key body 31 can hide the unlocking feature 32 inside the tubular structure. It is difficult for an interested person to obtain the unlocking feature 32 by sight or touch from the appearance of the key body 31, which has a good anti-theft effect. In the preferred embodiment, the unlocking feature 32 has a plurality of grooves 321 disposed on the inner surface 312 of the tube, each groove 321 extending inward from the tubular cutout of the key body 31, and the extension length of the plurality of grooves 321 can be used as the unlocking feature 32. In actual implementation, the unlocking feature 32 can use other shape structures and should not be limited to this.

The shape of the key hole 42 corresponds to the tubular shape of the key body 31. The key body 31 can be inserted into the key hole 42 together with the unlocking feature 32 to unlock the lock unit 4. When the key body 31 is inserted into the key hole 42, the key body 31 can be rotated by the gripping body 33, and the buckle 43 will be driven by the key body 31 to perform the locking or unlocking action. In addition, the positioning body 36 and the positioning hole 44 are arranged in a mutually coordinated manner, and the positioning hole 44 provides the positioning body 36 to enter the lock body 41. The positioning body 36 can not only accurately position the unlocking feature 32 inside the lock body 41, but also transmit the rotational force of the key body 31 to rotate the buckle 43 to rotate the buckle 43. In the preferred embodiment, the positioning body 36 is not only disposed on the key body 31 and located on the inner surface 312 of the tube, but also disposed on the key body 31 and located on the outer surface 311 of the tube. In actual implementation, the positioning body 36 can be disposed solely on the outer surface 311 of the tube or the inner surface 312 of the tube, and should not be limited to this.

Among them, when the lock unit 4 is set on the door body, the lock hole 42 faces the outside of the door body, and the manual operating body 45 faces the inside of the door body. The person outside the door body must use the key unit 3 to rotate the lock buckle 43, and the person inside the door body can use the manual operating body 45 to rotate the lock buckle 43, thereby achieving the purpose of locking or unlocking the lock unit 4. Since the structural design of the lock unit 4 has many variations, it should not be limited to the examples of this preferred embodiment.

The structure of the audio generating structure 35 is a cutout provided on the key body 31 and a block (not shown) provided inside the key body 31, but not limited thereto. Since the key body 31 is a tubular structure with an open end and a closed end, the user can blow air from the open end of the key body 31. The airflow passing through the audio generating structure 35 will generate a high-frequency sound, which can be used as an external help signal. The through hole 34 provided on the grip body 33 can provide a key ring for passing through, so that the user can centrally manage and store multiple keys.

From the above description, it can be seen that the hidden key device of the present invention has the following effects:

1. It can improve the anti-theft effect of the lock: Since the outer surface 311 of the tube is smooth, the unlocking feature 32 is set on the inner surface 312 of the tube and is spaced from the outer surface 311 of the tube, so that the key body 31 can hide the unlocking feature 32 inside the tubular structure, preventing people from obtaining the unlocking feature 32 from the appearance of the key body 31 by vision or touch, effectively preventing the unlocking feature 32 of the key unit 3 from being copied, and having a good anti-theft effect.

2. Can emit a distress sound: The key body 31 is a tubular structure with an open end and a closed end. The user can blow air inward from the open end of the key body 31. The air flows through the audio generating structure 35 to emit a high-frequency distress sound to the outside, which can be used as an alarm signal for external help.

In summary, the key body 31 is a tubular structure that can conceal the unlocking feature 32, which not only provides basic unlocking and locking functions, but also prevents malicious persons from copying the key by visual or tactile means. In addition, the tubular key body 31 surrounds an air flow channel, and the air flow passes through the audio generating structure 35 to emit a high-frequency distress sound to the outside, so the purpose of the present invention can be achieved.

However, what is described above is only a preferred embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. In other words, any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention description are still within the scope of the present patent.

1:Key structure

11: Key body

12: Unlocking Features

13: Grip

14: Positioning convex body

3:Key unit

31:Key Body

311: Outer surface of tube

312: Inner surface of tube

32: Unlocking Features

321: Groove

33: Grip

34:Piercing

35: Audio Generation Structure

36: Positioning body

4: Locking unit

41: Lock body

42: Keyhole

43: Buckle

44: Positioning hole

45: Manual operation body

FIG. 1 is a three-dimensional schematic diagram illustrating a key structure; FIG. 2 is a three-dimensional schematic diagram illustrating a preferred embodiment of a hidden key device of the present invention, illustrating the three-dimensional appearance of a key unit and a lock unit; FIG. 3 is a three-dimensional schematic diagram illustrating another three-dimensional appearance of the key unit in the preferred embodiment; and FIG. 4 is a side view schematic diagram illustrating the side view structure of the key unit in the preferred embodiment.

3:Key unit

31: Key body

311: Outer surface of tube

33: Grip body

34: Perforation

35: Audio generation structure

36: Positioning body

4: Locking unit

41: Lock body

42: Keyhole

43: Buckle

44: Positioning hole

45: Manual operation body

Claims (8)

A hidden key device comprises: a key unit, including a key body, an unlocking feature disposed on the key body, and an audio generating structure disposed on the key body, wherein the key body is tubular and has an outer surface and an inner surface of the tube opposite to each other, the unlocking feature is disposed on the inner surface of the tube, and the unlocking feature has a plurality of audio generating structures disposed on the inner surface of the tube. Grooves on the surface, each groove extending inward from the tubular cutout of the key body, the unlocking feature being the extension length of the plurality of grooves; and a lock unit, comprising a lock body detachably connected to the key body, a lock hole disposed on the lock body, and a lock buckle disposed on the lock body, the shape of the lock hole corresponding to the tubular shape of the key body. A hidden key device as described in claim 1, wherein the key unit further includes a holding body connected to the key body. A hidden key device as described in claim 2, wherein the key unit further includes a through hole disposed on the holding body. As described in claim 1, the hidden key device, wherein the key unit further includes a positioning body disposed on the key body, and the lock unit further includes a positioning hole disposed on the lock body, and the positioning body and the positioning hole are disposed in positions that cooperate with each other. A hidden key device as described in claim 4, wherein the positioning body is disposed on the key body and located on the inner surface of the tube. A hidden key device as described in claim 4, wherein the positioning body is disposed on the key body and located on the outer surface of the tube. A hidden key device as described in claim 1, wherein the unlocking feature is spaced apart from the outer surface of the tube. A hidden key device as described in claim 1, wherein the lock unit further includes a manual operating body disposed on the lock body.