Multifunctional key chain wrench

By combining the functions of a keychain and a wrench, a multi-functional keychain wrench has been designed, which solves the problem of the traditional keychain having only one function, enhances the practicality of the keychain, and meets the needs of daily carrying and simple maintenance.

CN223917885UActive Publication Date: 2026-02-17SHENZHEN JIE ERLIAN SAN TECH CO LTD
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Patent Information

Application Number
CN202520614379.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-02-17
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

Traditional keychains have limited functionality, are inconvenient to carry and use, and are difficult to meet the needs of daily life and simple repairs.

Method used

Design a multi-functional keychain wrench that combines the functions of a keychain and a wrench. It includes components such as a keychain body, pin, bolt, knife, pliers head, and lead screw, enabling the attachment of the keychain and the operation of the wrench.

Benefits of technology

This enhances the practicality of the keychain, allowing it to be used as a regular keychain or as a wrench when needed, thus meeting multifunctional requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of key chains, in particular to a multifunctional key chain wrench which comprises a key chain body, and a hole A, a hole B, a hole C and an avoiding groove are formed in the key chain body. The pin shaft is matched with the hole B, and an auxiliary hook is hinged to the pin shaft through the hole B; the bolt is matched with the hole A, and a small knife is hinged to the bolt through the hole A. According to the multifunctional key chain wrench, the key chain and the wrench are combined, the multifunctional key chain wrench can be used as a common key chain and can also be used as the wrench for operation when needed, and practicability is high.
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Description

TECHNICAL FIELD

[0001] The utility model relates to key ring technical field especially relates to a multifunctional key ring wrench. BACKGROUND

[0002] ‌Key ring is a decorative item hung on the key ring, usually made of metal, leather, plastic, rubber or wood and other materials.‌Its design is diverse, can be small and exquisite cartoon modeling, brand logo, even the simulation model, etc. Key ring is not only practical, but also often used as a gift, reflecting the owner's personality and taste.‌‌‌

[0003] In daily life and some simple maintenance work, people often need to carry small tools for immediate use, the traditional wrench is large in size, inconvenient to carry, and the ordinary key ring is single in function, can only be used for hanging key and other articles, so a multifunctional key ring wrench is needed to solve the above problems. SUMMARY

[0004] The utility model embodiment purposes to provide a kind of multifunctional key ring wrench, to develop a kind of small tool with the function of key ring and wrench to solve the problems mentioned in the background art.

[0005] The utility model embodiment is realized as follows, a kind of multifunctional key ring wrench, comprising: key ring main body, hole A, hole B, hole C and avoiding slot are set on the key ring main body;Pin shaft is cooperatively arranged with hole B, and the pin shaft is hinged with secondary hook by hole B;Bolt is cooperatively arranged with hole A, and small knife is hinged with bolt by hole A.

[0006] Preferably, it further includes: two clamping heads are provided, the clamping head is provided with hole D and threaded hole, and the two clamping heads are slidingly arranged on the key ring main body through hole D;Lead screw is screwed with the threaded hole of the clamping head by passing through hole C, the lead screw is fixed with the roller arranged on the inner side of the avoiding slot in the middle part, the screw thread rotation directions of the lead screw on both sides of the roller are opposite, and the roller is used to control the rotation of the lead screw.

[0007] Preferably, the small knife is provided with a limiting hole, an axle hole and a groove, the limiting hole is arranged on both sides of the axle hole, the bolt is used to pass through the axle hole and hole A to hinge the small knife on the key ring main body, and the groove is used to facilitate holding the small knife.

[0008] The multifunctional key ring wrench provided by the utility model combines key ring and wrench, which can be used as ordinary key ring and operated as wrench when needed, and is practical. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is schematic view of multifunctional key ring wrench.

[0010] Figure 2 Key holder body diagram of multifunctional key holder wrench.

[0011] Figure 3 Pliers head diagram of multifunctional key holder wrench.

[0012] Figure 4 Knife diagram of multifunctional key holder wrench.

[0013] In the drawings: 1-key holder body, 101-hole A, 102-hole B, 103-hole C, 104-avoidance groove, 2-secondary hook, 3-pivot, 4-pliers head, 401-hole D, 402-threaded hole, 5-screw rod, 6-roller, 7-knife, 701-limiting hole, 702-shaft hole, 703-groove, 8-bolt. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and do not limit the utility model.

[0015] The specific implementation of the utility model will be described in detail in combination with specific examples.

[0016] Please refer to Figure 1 and Figure 2 The utility model embodiment provides a multifunctional key holder wrench, the multifunctional key holder wrench includes:

[0017] Key holder body 1, the key holder body 1 is set with hole A 101, hole B 102, hole C 103 and avoidance groove 104;Pivot 3, it is arranged in cooperation with hole B 102, pivot 3 is hinged with secondary hook 2 through hole B 102;Bolt 8, it is arranged in cooperation with hole A 101, bolt 8 is hinged with knife 7 through hole A 101.

[0018] When using the multifunctional key holder wrench, secondary hook 2 can be pressed, and secondary hook 2 can be rotated on key holder body 1 through pivot 3, so that key holder body 1 can be hung on the rope;Knife 7 can be pulled, and knife 7 can be rotated on key holder body 1 through bolt 8, so that knife 7 can be unfolded, and convenient to use.

[0019] As Figure 1 and Figure 3As shown, in a preferred embodiment of this utility model, it further includes: two pliers heads 4, each having a hole D401 and a threaded hole 402, the two pliers heads 4 being slidably mounted on the key ring body 1 through the hole D401; a lead screw 5, which passes through the hole C103 and is threadedly connected to the threaded hole 402 of the pliers head 4, a roller 6 fixed in the middle of the lead screw 5 and disposed inside the relief groove 104, the threads of the lead screw 5 on both sides of the roller 6 having opposite directions, the roller 6 being used to control the rotation of the lead screw 5.

[0020] When using the wrench function, turn the roller 6, which drives the lead screw 5 to rotate. The rotation of the lead screw 5 will cause the threaded holes 401 on both sides of the pliers 4 to move away from each other along the key ring body 1. Then, place the two pliers 4 on both sides of the nut and turn the roller 6 in the opposite direction. The two pliers 4 will then move closer to each other and clamp the nut, thus enabling the use of the wrench function.

[0021] like Figure 4 As shown, in a preferred embodiment of the present invention, the knife 7 is provided with a limiting hole 701, a shaft hole 702 and a groove 703. The limiting hole 701 is provided on both sides of the shaft hole 702. The bolt 8 is used to pass through the shaft hole 702 and the hole A to hinge the knife 7 to the key ring body 1. The groove 703 is used to facilitate the gripping of the knife 7.

[0022] When using the knife 7, pinch the groove 703 on the knife 7 and pull the knife 7. The knife 7 can then rotate and unfold on the bolt 8, making it convenient to use the knife 7.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-functional key fob wrench comprising a key fob body, characterized by, The key holder body is provided with holes A, B, C and a clearance groove; A pin shaft is arranged in cooperation with hole B, and the pin shaft is hingedly connected with a secondary hook through hole B; A bolt is arranged in cooperation with hole A, and the bolt is hingedly connected with a small knife through hole A.

2. The multi-purpose key fob wrench of claim 1, wherein, Further comprising: Two plier heads are arranged, and the plier heads are provided with holes D and threaded holes, and the two plier heads are slidingly arranged on the key holder body through the holes D; A lead screw is threaded through hole C and is threadedly connected with the threaded holes of the plier heads, a roller is fixed in the middle of the lead screw and is arranged inside the clearance groove, the screw threads of the lead screw on both sides of the roller are opposite in rotation direction, and the roller is used for controlling the rotation of the lead screw.

3. The multi-purpose key fob wrench of claim 1, wherein, The small knife is provided with limiting holes, shaft holes and grooves, the limiting holes are arranged on both sides of the shaft holes, the bolt is used for penetrating through the shaft holes and hole A to hingedly connect the small knife on the key holder body, and the grooves are used for facilitating holding the small knife.