CN106337604B - foldable cross key - Google Patents

Abstract

The invention discloses a foldable cross key, which comprises a main key head and a pair of auxiliary key heads, wherein the auxiliary key heads are arranged on two sides of the main key head in a foldable manner. The foldable cross key has the following advantages: effectively reduce the space of accomodating of cross key, conveniently accomodate, be fit for the key storage device of various different grade types.

Description

foldable cross key

technical field

The present invention relates to a key, more precisely, a foldable cross key.

Background technique

Cross-shaped key is a kind of common key, because the space occupied by this key is relatively large, it is very troublesome to store, especially there are many key organizers like KEYSMART (website http://getkeysmart.com) on the market at present, This kind of organizer is only suitable for ordinary keys with a sheet shape, but it can't do anything for cross keys, or it needs to occupy a lot of space.

Contents of the invention

The present invention mainly solves the technical problems existing in the prior art, thereby providing a foldable cross key.

Above-mentioned technical problem of the present invention is mainly solved by following technical scheme:

The invention discloses a foldable cross key, which comprises a main key head and a pair of auxiliary key heads, and the auxiliary key heads are foldably arranged on both sides of the main key head.

The invention discloses a foldable cross key, comprising:

A main key head, the main key head includes a strip-shaped first key strip and a sheet-shaped first key blade, and the two sides of the first key strip are respectively provided with a first key tooth surface, The first key piece is provided with a circular fixed key hole, the middle part of the first key bar is provided with a rectangular through movable notch, and the head of the movable notch is provided with a half-closed front A fixed screw hole, the tail of the movable notch is provided with a through rear fixed screw hole;

A fixed spring, the fixed spring is arranged between the rear fixed screw hole and the front fixed screw hole, the fixed spring includes a spring main body, the head of the spring main body is provided with a front fixed column, The tail of the spring main body is provided with a rear fixing column, the outer wall of the front fixing column is provided with a front fixing thread, the tail of the front fixing column is provided with a front mounting notch, and the rear fixing column is provided with a front mounting notch. The outer wall is provided with a rear fixing thread, the tail of the rear fixing column is provided with a rear installation notch, the front fixing column is set in the front fixing screw hole, and the rear fixing column is set in the in the rear fixing screw hole;

A pair of auxiliary key heads, the auxiliary key head includes a strip-shaped second key bar, the outer side of the second key bar is provided with a second key tooth surface, and the inner side of the second key bar is provided with There is a mating contact surface, and the inner wall of the second key bar is provided with an outwardly protruding mating protrusion and an inwardly recessed mating groove, and the protruding height of the mating protrusion relative to the mating contact surface is greater than the The depression depth of the matching groove relative to the matching contact surface, the matching protrusion is provided with a protruding through hole, and the spring main body penetrates the protruding through hole;

Wherein, the auxiliary key head is foldably arranged on both sides of the main key head.

As a preferred embodiment of the present invention, the thickness of the main key head and the auxiliary key head is equal to the height of the movable notch.

The invention discloses a foldable cross key, comprising:

A main key head, the main key head includes a strip-shaped first key strip and a sheet-shaped first key blade, and the two sides of the first key strip are respectively provided with a first key tooth surface, The first key piece is provided with a circular fixed key hole, the middle part of the first key bar is provided with a rectangular through movable notch, and the head of the movable notch is provided with a half-closed front A fixed screw hole, the tail of the movable notch is provided with a through rear fixed screw hole;

A fixed spring, the fixed spring is arranged between the rear fixed screw hole and the front fixed screw hole, the fixed spring includes a spring main body, the head of the spring main body is provided with a front fixed column, The tail of the spring main body is provided with a rear fixing column, the outer wall of the front fixing column is provided with a front fixing thread, the tail of the front fixing column is provided with a front mounting notch, and the rear fixing column is provided with a front mounting notch. The outer wall is provided with a rear fixing thread, the tail of the rear fixing column is provided with a rear installation notch, the front fixing column is set in the front fixing screw hole, and the rear fixing column is set in the in the rear fixing screw hole;

A pair of auxiliary key heads, the auxiliary key head includes a strip-shaped second key strip and a sheet-shaped second key blade, and the outer side of the second key strip is provided with a second key tooth surface, so The inner side of the second key strip is provided with a mating contact surface, the second key strip is provided with a semicircular fixed key opening, and the inner wall of the second key strip is provided with an outwardly protruding mating protrusion and An inwardly recessed matching groove, the protruding height of the matching protrusion relative to the matching contact surface is greater than the recessed depth of the matching groove relative to the matching contact surface, and the inner setting of the matching protrusion There is a protruding through hole through which the spring body passes through the protruding through hole;

Wherein, the auxiliary key head is foldably arranged on both sides of the main key head.

As a preferred embodiment of the present invention, the radius of the fixed key hole is larger than the fixed key hole, and the thickness of the main key head and the auxiliary key head is equal to the height of the movable notch.

The present invention also discloses a method for installing a foldable cross key as mentioned above, including steps:

1) Put a pair of auxiliary key heads into the movable slots respectively, so that the protruding through holes are initially aligned;

2) Insert the front fixing columns of the fixing spring through the protruding through holes, so that the front fixing columns fall into the front fixing screw holes, and leave the rear fixing columns in the fixing key hole;

3) Pass a screwdriver through the rear fixing screw hole and the spring body, and press against the front installation notch at the tail of the front fixing column, and rotate the screwdriver so that the front fixing column is fixed in the front fixing screw hole;

4) Insert the rear fixing post into the rear fixing screw hole, press the screwdriver against the rear installation notch of the rear fixing post, and rotate the screwdriver so that the rear fixing post is fixed in the rear fixing screw hole.

The foldable cross key of the present invention has the following advantages: the storage space of the cross key is effectively reduced, the storage is convenient, and it is suitable for various types of key storage devices.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the schematic diagram of the three-dimensional structure of the foldable cross key of the present invention;

Fig. 2 is an exploded schematic view of the three-dimensional structure of the foldable cross key in Fig. 1;

Fig. 3 is a schematic diagram of the three-dimensional structure of the secondary key head of the foldable cross key in Fig. 2;

Fig. 4 is a cross-sectional view of the auxiliary key head in Fig. 3 along line A-A;

Fig. 5 is a further three-dimensional exploded schematic diagram of the foldable cross key in Fig. 2;

Fig. 6 is a detailed enlarged schematic view of area B in Fig. 5;

Fig. 7 is a detailed enlarged schematic diagram of area C in Fig. 5;

FIG. 8 is an enlarged schematic view of the details of the D area in FIG. 6;

Fig. 9 is a schematic sectional view of the structure of the main key head of the foldable cross key in Fig. 5;

Fig. 10 is a detailed enlarged schematic diagram of the E area of the main key head in Fig. 9;

Fig. 11 is a schematic diagram of the three-dimensional structure of the foldable cross key in Fig. 1, which is another perspective at this time, and at this time, the cross key is in an unfolded state;

Fig. 12 is a sectional view of the foldable cross key in Fig. 11 along line F-F;

Fig. 13 is a further cross-sectional view of the foldable cross key in Fig. 12, which is now in an explosion mode;

Fig. 14 is a detailed enlarged schematic diagram of the G area in Fig. 13;

Fig. 15 is a schematic diagram of the three-dimensional structure of the foldable cross key of the present invention, at this time, the cross key is in a folded state;

Fig. 16 is a detailed enlarged schematic diagram of the H region in Fig. 15;

Fig. 17 is a schematic diagram of the three-dimensional structure of the foldable cross key in Fig. 15, which is another perspective at this time;

Fig. 18 is a schematic perspective view of the second embodiment of the auxiliary key head of the foldable cross key of the present invention.

Detailed ways

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

As shown in Figures 1 to 2, the foldable cross key 1 includes a main key head 2 and a pair of auxiliary key heads 3, the thickness of the main key head 2 and the auxiliary key heads 3 are consistent, and the auxiliary key heads 3 are foldable It is arranged on both sides of the main key head 2.

As shown in Fig. 5 to Fig. 10, the main key head 2 includes a strip-shaped first key strip 21 and a sheet-shaped first key blade 22, and the two sides of the first key strip 21 are respectively provided with a first The key tooth surface 211, the first key blade 22 is provided with a circular fixed key hole 23, the middle part of the first key bar 21 is provided with a rectangular penetrating movable notch 24, and the head of the movable notch 24 is provided with There is a half-closed front fixing screw hole 25, and the rear portion of the movable notch 24 is provided with a through rear fixing screw hole 26. It should be noted that the height of the movable notch 24 is consistent with the thickness of the main key head 2 and the auxiliary key head 3 .

A detachable fixing spring 4 is arranged between the rear fixing screw hole 26 and the front fixing screw hole 25 . This fixed spring 4 comprises a spring main body 41, and the head of this spring main body 41 is provided with a front fixed column 42, and the tail of this spring main body 41 is provided with a rear fixed column 43, and the outer wall of this front fixed column 42 is provided with a front fixed thread 421, the afterbody of this front fixing column 42 is provided with a front installation notch 422, and the outer wall of this rear fixing column 43 is provided with a rear fixing thread 431, and the afterbody of this rear fixing column 43 is provided with a rear installation notch 432, and this front fixing The post 42 is arranged in the front fixing screw hole 25 , and the rear fixing post 43 is arranged in the rear fixing screw hole 26 .

As shown in Fig. 3 and Fig. 4, the secondary key head 3 includes a strip-shaped second key strip 31 and a sheet-shaped second key blade 32, and a second key tooth is provided on the outside of the second key strip 31 surface 312, the inner side of the second key strip 31 is provided with a mating contact surface 311, the second key piece 32 is provided with a semicircular fixed key hole 33, the radius of the fixed key hole 33 is larger than the fixed key hole 23, It will continue to be explained later.

The inner wall of the second key bar 31 is provided with an outwardly protruding matching protrusion 34 and an inwardly recessed matching groove 35 , the protrusion height D1 of the matching protrusion 34 relative to the matching contact surface 311 is greater than that of the matching groove 35 At the depth D2 of the depression of the mating contact surface 311 , a protruding through hole 341 is formed in the mating protrusion 34 , and the spring main body 41 passes through the protruding through hole 341 .

The usage method of the foldable cross key 1 will be described below.

As shown in Fig. 1 and Fig. 11 to Fig. 14, at this moment, the foldable cross key is in an unfolded state. The secondary key heads 3 are respectively perpendicular to the main key heads 2 to form a complete cross key, which is convenient for the user to open or close the door. At this time, the matching protrusions 34 of the auxiliary key head 3 are respectively inserted into the movable notches 24 , and the matching protrusions 34 push into the matching groove 35 of the other auxiliary key head 3 . Because the protruding height D1 of the mating projection 34 relative to the mating contact surface 311 is greater than the recess depth D2 of the mating groove 35 relative to the mating contact surface 311, therefore, when the cross key rotates in the lockhole, the auxiliary key head 3 can always be aligned with the main key. The heads 2 remain perpendicular to each other without skewing.

As shown in FIGS. 15 to 17 , at this moment, the foldable cross key is in a folded state. The user directly pulls the auxiliary key head 3 laterally from the movable notch 24 of the main key head 2. At this time, the matching protrusion 34 is separated from the corresponding matching groove 35, and the auxiliary key head 3 is folded onto the main key head respectively. 2 sides. Due to the elasticity of the spring main body 41, as shown in FIG. 16, the matching protrusion 34 is tightly buckled by the spring main body 41. At this time, the matching protrusion 34 protrudes outside the movable notch 24 to complete the folding.

The installation method of the foldable cross key is introduced below. Firstly, put a pair of auxiliary key heads 3 into the movable slots 24 respectively, so that the protruding through holes 341 are preliminarily aligned. Then, the front fixing columns 42 of the fixing spring 4 are respectively penetrated through the protruding through holes 341, so that the front fixing columns 42 fall into the front fixing screw holes 25, and the rear fixing columns 43 are temporarily left in the fixing key hole 23 at this moment. Then, pass the screwdriver through the rear fixing screw hole 26 and the spring main body 41, and push against the front mounting notch 422 at the front fixing column 42 afterbody, and rotate the screwdriver so that the front fixing column 42 is firmly fixed in the front fixing screw hole 25. Finally, insert the rear fixing column 43 into the rear fixing screw hole 26, press the screwdriver against the rear installation notch 432 of the rear fixing column 43, and rotate the screwdriver so that the rear fixing column 43 is firmly fixed in the rear fixing screw hole 26. Since the front fixing column 42 and the rear fixing column 43 are all fixed, the spring body 41 will not fall off from the movable notch 24, even if the auxiliary key head 3 is pulled out completely, it will not be separated from the main key head 2.

When using a key storage device such as KEYSMART, place the isolation nylon ring sheet on both sides of the fixed key hole 23 of the main key head 2 respectively. Because the radius of the fixed key hole 33 of auxiliary key head 3 is greater than fixed key hole 23, and the radius of isolation nylon ring sheet is less than fixed key hole 33, therefore, auxiliary key head 3 is folded, can not interfere with isolation nylon ring sheet . After the folding is completed, the folded cross key can be directly folded into the key holder and stored side by side with other sheet keys.

As shown in Fig. 18, it is the second embodiment of the auxiliary key head of the present invention. At this time, the auxiliary key head 300 only includes a key strip, and this auxiliary key head 300 is more suitable for a key receiver with a long shaft, and can accommodate more keys. The using method of this auxiliary key head is identical with the auxiliary key head in the first kind of implementation method.

The foldable cross key of the present invention has the following advantages: the storage space of the cross key is effectively reduced, the storage is convenient, and it is suitable for various types of key storage devices.

It is not limited thereto, and any changes or replacements that do not go through creative efforts shall fall within the scope of protection of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope defined in the claims.

Claims (3)

1. a kind of folding cross key (1), comprising：

One master key head (2), first key item (21) and a sheet of first of the master key head (2) comprising a strip Key piece (22), the both sides of the first key item (21) are respectively equipped with the one first key flank of tooth (211), first key Key piece (22) is equipped with a circular fixed keyhole (23), and the middle part of the first key item (21) is equipped with passing through for a rectangle The movable notch (24) worn, the head of the movable notch (24) is equipped with a semi-enclosed preceding fixing threaded hole (25), described The tail portion of movable notch (24) is equipped with a perforative rear fixing threaded hole (26)；

One retainer spring (4), the retainer spring (4) be arranged on the rear fixing threaded hole (26) and preceding fixing threaded hole (25) it Between, the retainer spring (4) includes a spring body (41), fixed column before the head of the spring body (41) is equipped with one (42), fixed column (43) after the tail portion of the spring body (41) is equipped with one is set on the outer wall of the preceding fixed column (42) Fixed thread (421) before having one, installation notch (422) before the tail portion of the preceding fixed column (42) is equipped with one, described is rear solid Fixed thread (431) after the outer wall of fixed column (43) is equipped with one, mounting groove after the tail portion of the rear fixed column (43) is equipped with one Mouth (432), the preceding fixed column (42) are arranged in the preceding fixing threaded hole (25), the rear fixed column (43) setting In the rear fixing threaded hole (26)；

A pair of of secondary key head (3), second key item (31) of the secondary key head (3) comprising a strip, described second The outside of key item (31) is equipped with the one second key flank of tooth (312), and the inside of the second key item (31) is equipped with a cooperation Contact surface (311), the inner wall of the second key item (31) are equipped with an outwardly projecting cooperation prominent (34) and one inwardly The mating groove (35) of recess, the cooperation protrude the projecting height of (34) relative to the coordinate contact surfac (311) (D1) more than the mating groove (35) relative to the cup depth (D2) of the coordinate contact surfac (311), described matches It closes and a perforative prominent through-hole (341) is equipped in prominent (34), the spring body (41) is through the protrusion through-hole (341)；

Wherein, the secondary key head (3) is collapsibly arranged on the both sides of the master key head (2).

2. folding cross key according to claim 1, which is characterized in that the master key head (2) and secondary key The thickness of key bit (3) is equal with the height of the movable notch (24).

3. a kind of installation method of the folding cross key as claimed in claim 1, includes step：

1), a pair of of secondary key head (3) is respectively put into movable notch (24) so that prominent through-hole (341) is tentatively aligned；

2) the preceding fixed column (42) of retainer spring (4), is extended through into prominent through-hole (341) so that preceding fixed column (42) drops into In preceding fixing threaded hole (25), and rear fixed column (43) is stayed in fixed keyhole (23)；

3) screwdriver, is passed through into rear fixing threaded hole (26) and spring body (41), and resists the preceding peace of preceding fixed column (42) tail portion Tankage mouth (422) rotates screwdriver so that preceding fixed column (42) is fixed in preceding fixing threaded hole (25)；

4), rear fixed column (43) is filled in rear fixing threaded hole (26), screwdriver is resisted to the rear installation notch of rear fixed column (43) (432), screwdriver is rotated so that rear fixed column (43) is fixed in rear fixing threaded hole (26).