TW201615946A - Protection device of key bit - Google Patents

Abstract

The present invention provides a protection device of key bit, the structural design thereof mainly includes a protection sheath, the rear end of the protection sheath is formed with a hollow part having three sides thereof being opened, and a penetrated hole is formed between the hollow part and the front end of the protection sheath, the upper end surface defined at the inner side of the hollow part is pre-formed with two corresponding engaging slots, and an resilient member is disposed in the engaging slot, the center defined at the bottom end of the inner surface of the hollow part is formed with a round column wide part, and a round column narrow part is extended from the round column wide part, and the round column narrow part is abutted against the top end surface of the hollow part; moreover, a main body of a key is latched in a recess of an accommodation part of a hand held member through a key rod, and the central location of a rod body at the rear of the key rod is formed with an elongated penetrated slot, the front and the rear ends of the elongated penetrated slot are respectively formed with a front and a rear penetrated holes having a relatively larger aperture, and the front end of the key rod is formed with a key bit structure; wherein, the aperture of the elongated penetrated hole allows the round column narrow part of the protection sheath to be received, and the front and the rear penetrated holes allow the round column wide part of the protection sheath to be received; accordingly, when being assembled, the hollow part of the protection sheath is able to be respectively pulled towards upward and downward, so that the key rod is able to be sleeved in from the rear end of the protection sheath, and the round column wide part is received in the rear penetrated hole of the key rod, then the top end of the protection sheath is downwardly drilled for forming a lock connecting member, so that a combination positioning status is formed between the protection sheath and the key rod; as such, when a user downwardly presses the protection sheath to enable the round column wide part to be released from the rear penetrated hole, the protection sheath can be pushed for forwardly sliding, when the round column wide part is displaced and in contact with the front penetrated hole, the protection sheath is upwardly displaced through the resilient member, and the round column wide part is latched in the front penetrated hole, so that the status of the protection sheath being forwardly displaced and positioned at the outer side of the key bit is established; when the key bit is desired to be used, the same operation is performed to enable the protection sheath to be displaced to the rear end and positioned; with the above-mentioned structure, advantages of protecting the key bit and providing convenient operation are provided.

Description

Key tooth protector

The present invention relates to a key guard device, and more particularly to the fact that the key guard can be slipped by a press and positioned at the rear handle or the key to facilitate the use and the key to the lock tooth. Protection effect.

According to the key used in the general door lock, the structure mainly has a hand piece for the user to hold, and the front end of the key extends a key structure, and the structure has the following disadvantages in use:

First, since the key teeth are mostly arranged in a slender shape, the structure is relatively thin, so that it is easy to be deformed or bent by the external force, and the lock tooth is deformed and disabled.

Secondly, the key of the lock is designed to match the opening and closing of the lock. The upper and lower end faces are arranged with serrations or concave and convex structures. If the exposed lock teeth are used carelessly, there may be concerns about scratching the user or causing damage to the clothes. There should be improvements to be addressed.

Therefore, due to the use of the key in the structural design, the protection of the key and the safety of the use of the key, it will also increase the use of the problem, it is an urgent need to improve the subject.

In order to solve the lack of the above-mentioned key design, the inventor made a special research and improvement, based on years of experience and technology in related industries, and then developed the lock of the present invention. The main purpose of the key protection device is to protect the key of the key when it is normally carried or not used, and it will not cause deformation and distortion and other damage due to various external force factors, and can also avoid the key. The tooth scratches the user or breaks the care of the clothes, which is more conducive to the convenience of carrying.

Another object of the present invention is that the sheath is designed by a cylindrical wide and narrow structure, and the gap between the long groove of the key handle and the front and rear perforations is different, so that the sheath can be controlled by the snap or release, and Further, the sheath is given a state of use that is slipped or positioned on the key handle.

Another object of the present invention is to quickly change the position of the positioning through the sheath, and to give the operator the need to quickly switch between use or non-use, thereby not only having the effect of protecting the key teeth, but also conforming to the practical use. Sex.

(10) ‧‧‧Key body

(11)‧‧‧ key handle

(12)‧‧‧Key teeth

(13) ‧‧‧ft body

(14) ‧‧‧Long troughs

(15) ‧ ‧ front perforation

(16) ‧‧‧Perforated

(20)‧‧‧Handpieces

(21) ‧‧‧Capacity Department

(22) ‧ ‧ lacking slots

(30)‧‧‧ sheath

(31) ‧ ‧ 镂 镂 镂

(32) ‧‧‧Perforation

(33) ‧‧‧ card slot

(34) ‧‧‧Cylinder wide

(35) ‧‧ ‧ narrow section of the cylinder

(36)‧‧‧Locks

(37)‧‧‧Flexible parts

Fig. 1 is a perspective view 1 of the present invention.

Figure 2 is an exploded schematic view of the present invention.

Figure 3 is a schematic cross-sectional view of the present invention.

Fig. 4 is a schematic cross-sectional view showing the state of operation of the sheath of the present invention.

Fig. 5 is a schematic cross-sectional view showing the state of operation of the sheath of the present invention.

Fig. 6 is a cross-sectional view 3 showing the operation state of the sheath of the present invention.

Figure 7 is a perspective view 2 of the present invention.

Figure 8 is a schematic cross-sectional view of the present invention.

Figure 9 is a cross-sectional view 4 of the operational state of the sheath of the present invention.

With regard to the structural composition, technical means and efficacy of the present invention, only the examples are further described in detail with reference to the following figures: First, please refer to the figures 1, 2, 3 and 4, the key protection of the present invention. The structural design of the device mainly includes: a key body (10), which mainly locks a key handle (11) in a notch (22) of the receiving portion (21) of the hand piece (20), and the key The handle (11) is provided with an elongated slot (14) at a central position of the rear handle (13), and a through hole (15) is formed before the rear end of the elongated slot (14) forms a larger aperture. The rear perforation (16), while the front end of the key handle (11) is a lock tooth (12) structure.

a sheath (30), the rear end of the sheath (30) forms a three-side open hollow portion (31), and a perforation (32) is dug between the hollow portion (31) and the front end of the sheath (30). Further, the upper end surface of the hollow portion (31) is prefabricated with two corresponding snap groove (33) structures, and an elastic member (37) is installed in the snap groove (33), and the hollow portion ( 31) a cylindrical wide portion (34) is convexly formed at the center of the bottom end of the inner surface, and a cylindrical narrow portion (35) is further extended on the cylindrical wide portion (34), and the cylindrical narrow portion (35) is abutted against the hollow portion. (31) Upper end face.

In assembly, the hollow portion (31) of the sheath (30) can be respectively opened up and down, so that the lock handle (11) can be inserted from the rear end of the sheath (30), and the narrow portion of the cylinder (35) And the cylindrical wide portion (34) is disposed in the through hole (16) of the lock handle (11), and then a locking member (36) is drilled downwardly from the upper end of the sheath (30) to the narrow portion (35) of the cylinder. According to this, the sheath (30) and the key handle (11) can reach the combined limit state, and the bullet The upper member (37) abuts against the upper end surface of the lock handle (11); and wherein the elongated through groove (14) is sized to receive the cylindrical narrow portion (35) of the sheath (30), and the The front and rear perforations (15) (16) are accommodated by the cylindrical wide portion (34) of the sheath (30), but the diameter of the cylindrical wide portion (34) is greater than the diameter of the elongated through groove (14).

Furthermore, please refer to the figures 4, 5, 6, 7, 8, and 9 at the same time. When the lower jacket (30) is used to disengage the cylindrical wide portion (34) from the rear perforation (16), the narrow portion of the cylinder can be utilized ( 35) The limit shifting sheath (30) in the elongated groove (14) slides forward, and when the cylindrical wide portion (34) of the sheath (30) is pushed to the front perforation (15), the sheath ( 30) by the elastic member (37) to support the upward stretch, and the cylindrical wide portion (34) is clamped in the front through hole (15), according to the completion of the sheath (30) forward and positioned in the key tooth (12) External state; conversely, if the key (12) is to be used, the sheath (30) is positioned to the rear end of the lock handle (11) by the same pressing action, so that both A structural designer who protects the key teeth (12) and facilitates operation.

In summary, the present invention is directed to the design of the key of the key, which not only achieves the protection of the key head, but also avoids the trouble of carrying the key head due to the exposed key head, and overall has a pole. The value of Jiazhi's industry utilization is an excellent and outstanding innovation design, and patent applications are filed according to law.

(11)‧‧‧ key handle

(12)‧‧‧Key teeth

(13) ‧‧‧ft body

(14) ‧‧‧Long troughs

(15) ‧ ‧ front perforation

(16) ‧‧‧Perforated

(20)‧‧‧Handpieces

(21) ‧‧‧Capacity Department

(22) ‧ ‧ lacking slots

(30)‧‧‧ sheath

(31) ‧ ‧ 镂 镂 镂

(32) ‧‧‧Perforation

(37)‧‧‧Flexible parts

Claims (5)

A key guard device mainly includes: a key body, wherein a key handle is mainly disposed in a slot of the receiving portion of the hand piece, and the key handle is provided with an elongated shape at a central position of the rear handle body Through the groove, and forming a larger diameter before the long groove is formed, the front end and the rear hole are formed, and the front end of the key handle is a key structure; a sheath, the rear end of the sheath forms a three-sided opening The hollow portion is provided with a perforation between the hollow portion and the front end of the sheath, and the upper end surface of the hollow portion is provided with two corresponding snap groove structures, and an elastic member is disposed in the engaging groove. a cylindrical wide portion is protruded from the center of the bottom end of the inner surface of the hollow portion, and a cylindrical narrow portion is further extended on the wide portion of the cylinder, the narrow portion of the cylinder is abutted against the upper end surface of the hollow portion; the key handle is self-sheathed The rear end penetrates, and the narrow portion of the cylinder and the wide portion of the cylinder are inserted into the perforation behind the lock handle, and then a locking member is drilled downwardly from the upper end of the sheath to the narrow portion of the cylinder, and the elastic member is attached to the lock handle The end faces abut each other; the cylindrical wide portion is separated by pressing the sheath When perforating or post-perforating, the sleeve can be slid back and forth by the limit of the narrow portion of the cylinder in the elongated slot, and when the cylindrical portion of the sheath is pushed to the front or rear perforation, the sheath is elasticized. The support of the piece is upwardly stretched, and the wide portion of the cylinder is clamped in the front or rear perforation, thereby completing the state in which the sheath is moved and positioned outside the lock tooth or the rear end of the lock handle. According to the "key tooth protection device" of the first aspect of the patent application, wherein the sheath is assembled, the hollow portions thereof are respectively opened up and down. According to the "key tooth protection device" of claim 1, wherein the elongated slot has a larger diameter than the cylindrical narrow portion of the sheath. According to the "key tooth protection device" of claim 1, wherein the front and rear perforations have a larger diameter than the cylindrical wide portion of the sheath. According to the "key tooth protection device" of claim 1, wherein the diameter of the cylindrical wide portion is larger than the diameter of the elongated through groove.