Combined key

Abstract

The utility model discloses a combined key. The key is characterized in that the key comprises a plurality of independent key blank bodies which are combined into the key, the key blank bodies are formed by stacking and are fixedly connected in a bonding or welding mode, and the complete key is formed by combining the plurality of sheet-shaped key blank bodies, so that the toughness of sheet-shaped materials can be kept, and the service life of the key is prolonged. And the problem of breakage of the whole key caused by breakage of the integrally formed key part can be avoided, and the key has the characteristics of ingenious structure, convenience and durability.

Description

Technical Field

[0001] This utility model relates to a key, and more particularly to a key composed of multiple key embryos. Background Technology

[0002] Currently, keys are generally milled from the same key blank. If a part of the key breaks, the entire key is likely to break. The key's toughness is also not ideal, making it inconvenient to use. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a combination key that can effectively solve the problem that if a part of the key is broken when it is milled from the same key blank, the whole key will easily break. It can maintain the toughness of the sheet material and avoid the problem of the whole key breaking due to the breakage of part of the key in the one-piece molding. It has the characteristics of ingenious structure, convenience and durability.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a combination key, characterized in that: it includes several independent key blanks that are assembled into a key, the key blanks are stacked together, and the key blanks are fixedly connected by adhesive or welding.

[0005] Furthermore, the key blank body includes a first positive locking groove blank, a first middle blank, and a first negative locking groove blank stacked from top to bottom.

[0006] Furthermore, the first positive locking slot blank includes a first positive locking slot portion, a first positive connecting portion, and a first handle portion arranged from left to right; the first middle blank includes a first central portion, a first central connecting portion, and a second handle portion arranged from left to right; and the first reverse locking slot blank includes a first reverse locking slot portion, a first reverse connecting portion, and a third handle portion arranged from left to right.

[0007] Furthermore, the first positive locking groove, the first central part, and the first negative locking groove are matched; the first positive connecting part, the first central connecting part, and the first negative connecting part are matched; the first handle, the second handle, and the third handle are matched; and the right end of the first handle, the second handle, and the third handle are all provided with a first connecting hole.

[0008] Furthermore, the key blank body includes a second positive locking groove blank, a second middle blank, a second anti-locking groove blank, and a handle blank, the second positive locking groove blank, the second middle blank, and the second anti-locking groove blank are stacked from top to bottom, and the handle blank is located at the right end of the key blank body.

[0009] Furthermore, the second positive locking groove blank includes a second positive locking groove portion and a second positive connecting portion arranged from left to right, the second middle blank includes a second center portion and a second center connecting portion arranged from left to right, the second reverse locking groove blank includes a second reverse locking groove portion and a second reverse connecting portion arranged from left to right, and a second serial connection hole is provided on the right end of the handle blank.

[0010] Furthermore, the second positive locking groove, the second central part, and the second negative locking groove are matched, and the second positive connecting part, the second central connecting part, and the second negative connecting part are matched.

[0011] Furthermore, the sum of the thicknesses of the second positive locking groove blank, the second middle blank, and the second negative locking groove blank is equal to the thickness of the handle blank.

[0012] This utility model adopts the above-mentioned technical solution, overcomes the shortcomings of the background technology, and provides a combination key that can effectively solve the problem that if a part of the key is broken, it will easily cause the entire key to break. It can maintain the toughness of the sheet material and avoid the problem of the entire key breaking due to the breakage of part of the key formed in one piece. It has the characteristics of ingenious structure, convenience and durability. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model.

[0014] Appendix Figure 2 This is a schematic diagram of the split structure of the first embodiment of the present invention.

[0015] Appendix Figure 3 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0016] Appendix Figure 4 This is a schematic diagram of the split structure of the second embodiment of the present invention.

[0017] In the figure: key blank 1, first positive lock groove blank 101, first positive lock groove portion 101a, first positive connecting portion 101b, first handle portion 101c, first middle portion blank 102, first center portion 102a, first center connecting portion 102b, second handle portion 102c, first anti-lock groove blank 103, first anti-lock groove portion 103a, first anti-connecting portion 103b, third handle portion 103c, first connecting hole 104, second positive lock groove blank 105, second positive lock groove portion 105a, second positive connecting portion 105b, second middle portion blank 106, second center portion 106a, second center connecting portion 106b, second anti-lock groove blank 107, second anti-lock groove portion 107a, second anti-connecting portion 107b, handle blank 108, second connecting hole 108a. Detailed Implementation

[0018] The following descriptions of the embodiments are made with reference to the accompanying drawings, illustrating specific embodiments in which the present invention can be implemented. The directional terms used in this invention, such as up, down, front, back, left, right, inside, outside, side, etc., are merely for the purpose of referring to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding the present invention, and not for limiting the present invention. In the drawings, structurally similar units are indicated by the same reference numerals.

[0019] The following description, in conjunction with the accompanying drawings, further clarifies the specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit.

[0020] See appendix Figures 1 to 2 The first embodiment of this utility model includes several independent key blanks 1 assembled into a key. The key blanks 1 are stacked together and are fixedly connected by adhesive or welding.

[0021] Furthermore, the key blank 1 includes a first positive locking groove blank 101, a first middle blank 102 and a first reverse locking groove blank 103 stacked from top to bottom.

[0022] Furthermore, the first positive locking slot blank 101 includes a first positive locking slot portion 101a, a first positive connecting portion 101b, and a first handle portion 101c arranged from left to right; the first middle blank 102 includes a first center portion 102a, a first center connecting portion 102b, and a second handle portion 102c arranged from left to right; and the first reverse locking slot blank 103 includes a first reverse locking slot portion 103a, a first reverse connecting portion 103b, and a third handle portion 103c arranged from left to right.

[0023] Furthermore, the first positive locking groove 101a, the first center part 102a and the first negative locking groove 103a are matched, the first positive connecting part 101b, the first center connecting part 102b and the first negative connecting part 103b are matched, the first handle part 101c, the second handle part 102c and the third handle part 103c are matched, and the right end of the first handle part 101c, the second handle part 102c and the third handle part 103c is provided with a first serial connection hole 104.

[0024] The key blank 1 can be made of a material with good elasticity and toughness, such as stainless steel sheet. According to the key's shape requirements, the sheet is laser-cut into a suitable shape. Then, the first positive lock groove blank 101, the first middle blank 102, and the first negative lock groove blank 103 are fixedly connected together using metal adhesive or laser welding. Finally, the key is polished to obtain the desired key.

[0025] The multi-layered boards are fixedly connected together, so that if one layer breaks, all the boards will break at the same time. The keys made in this way are very tough and are not prone to breakage.

[0026] See appendix Figures 3 to 4 In the second embodiment of this utility model, the key blank 1 includes a second positive locking groove blank 105, a second middle blank 106, a second anti-locking groove blank 107 and a handle blank 108. The second positive locking groove blank 105, the second middle blank 106 and the second anti-locking groove blank 107 are stacked from top to bottom, and the handle blank 108 is located at the right end of the key blank 1.

[0027] Furthermore, the second positive locking groove blank 105 includes a second positive locking groove portion 105a and a second positive connecting portion 105b arranged from left to right, the second middle blank 106 includes a second center portion 106a and a second center connecting portion 106b arranged from left to right, the second reverse locking groove blank 107 includes a second reverse locking groove portion 107a and a second reverse connecting portion 107b arranged from left to right, and a second connecting hole 108a is provided on the right end of the handle blank 108.

[0028] Furthermore, the second positive locking groove 105a, the second center part 106a, and the second negative locking groove 107a are matched, and the second positive connecting part 105b, the second center connecting part 106b, and the second negative connecting part 107b are matched.

[0029] Furthermore, the sum of the thicknesses of the second positive locking groove blank 105, the second middle blank 106, and the second negative locking groove blank 107 is equal to the thickness of the handle blank 108.

[0030] The difference between the second embodiment and the first embodiment is that the handle blank 108 is manufactured separately from the second positive locking groove blank 105, the second middle blank 106, and the second reverse locking groove blank 107, and the thickness of the handle blank 108 is the sum of the thicknesses of the other three.

[0031] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this utility model all fall within the protection scope of this utility model and should be defined by the claims.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A combination key, characterized in that: It includes several independent key blanks that are assembled into a key, the key blanks being stacked together and fixedly connected by adhesive or welding.

2. A combination key according to claim 1, characterized in that: The key blank includes a first positive locking groove blank, a first middle blank, and a first negative locking groove blank stacked from top to bottom.

3. A combination key according to claim 2, characterized in that: The first positive locking slot blank includes a first positive locking slot portion, a first positive connecting portion and a first handle portion arranged from left to right; the first middle blank includes a first central portion, a first central connecting portion and a second handle portion arranged from left to right; and the first negative locking slot blank includes a first negative locking slot portion, a first negative connecting portion and a third handle portion arranged from left to right.

4. A combination key according to claim 3, characterized in that: The first positive locking groove, the first center part and the first negative locking groove are matched, the first positive connecting part, the first center connecting part and the first negative connecting part are matched, the first handle part, the second handle part and the third handle part are matched, and the right end of the first handle part, the second handle part and the third handle part are provided with a first serial connection hole.

5. A combination key according to claim 1, characterized in that: The key blank includes a second positive locking groove blank, a second middle blank, a second negative locking groove blank, and a handle blank, which are stacked from top to bottom, and the handle blank is located at the right end of the key blank.

6. A combination key according to claim 5, characterized in that: The second positive locking groove blank includes a second positive locking groove portion and a second positive connecting portion arranged from left to right; the second middle blank includes a second center portion and a second center connecting portion arranged from left to right; the second reverse locking groove blank includes a second reverse locking groove portion and a second reverse connecting portion arranged from left to right; and a second serial connection hole is provided on the right end of the handle blank.

7. A combination key according to claim 6, characterized in that: The second positive locking groove, the second center groove, and the second negative locking groove are matched, and the second positive connecting part, the second center connecting part, and the second negative connecting part are matched.

8. A combination key according to claim 5, characterized in that: The sum of the thicknesses of the second positive locking groove blank, the second middle blank, and the second negative locking groove blank is equal to the thickness of the handle blank.

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