Foldable crank for hand generator
By designing a foldable crank handle, the grip and steel shaft can be rotated and folded to be hidden inside the crank handle body, solving the storage difficulties of non-foldable hand-cranked generator crank handles and achieving convenient storage and carrying.
Patent Information
- Application Number
- CN202520134625.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The handle of existing hand-cranked generators cannot be folded, making them inconvenient to store and carry when engaging in outdoor activities.
A foldable crank handle was designed. Through the rotational folding mechanism of the handle and the steel shaft, the handle and the steel shaft can rotate around the positioning pin respectively. After the handle rotates, it is aligned with the main body of the crank handle. After the steel shaft rotates, it is hidden in the rectangular through hole, thus achieving hidden folding.
It enables convenient storage of the crank handle, solves the space occupation problem caused by non-foldable design, and improves portability.
Smart Images
Figure CN223885067U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model discloses hand generator equipment technical field, concretely is a kind of foldable crank for hand generator. BACKGROUND
[0002] When people produce activities or travel in the field, mobile phone, notebook computer, electromagnetic oven, electric rice cooker, water boiler and other electronic equipment cannot be used when power is insufficient, and hand generator as an emergency power generation device can solve the problem. The hand generator currently generally consists of a generator body and a crank fixed on both sides. Since people often change places when they are in the field, they need to move and carry the hand generator at any time. However, the cranks on both sides of such hand generator are generally not foldable and are special-shaped cranks, which usually require a large space for loading and are not convenient to store and carry. UTILITY MODEL CONTENTS
[0003] The utility model discloses a foldable crank for hand generator to solve the problem raised in the background art, with ingenious structure design, hidden folding, convenient storage and carrying.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A foldable crank for hand generator, comprising a crank main body, a handle provided at one end of the crank main body and a steel shaft provided at the other end, the steel shaft being used to connect the internal bearing of the generator; the handle and the steel shaft are respectively connected to the crank main body through corresponding positioning pins, the crank main body is provided with a matching rectangular through hole at the position of the steel shaft, and the steel shaft can be hidden after rotating and folding.
[0006] Preferably, the positioning pins include a first positioning pin and a second positioning pin, both of which are connected to the crank main body through mounting holes.
[0007] Further, the handle can be rotated outward by 90 degrees around the first positioning pin, and after rotation, it is located on the same straight line as the crank main body.
[0008] The steel shaft can be rotated inward by 90 degrees around the second positioning pin, and after rotation, it is just folded and hidden in the rectangular through hole of the crank main body, which is convenient for storage.
[0009] Compared with the prior art, the utility model has the beneficial effects that the structure design is ingenious, the entire crank structure is in a linear type after the handle and the steel shaft are completely stored, which is convenient for storage and solves the problem of inconvenient storage and occupying space of the previous special-shaped crank. DRAWINGS
[0010] Figure 1The state structure diagram before folding of the utility model
[0011] Figure 2 The state structure diagram after folding of the utility model.
[0012] In the drawing: 1, handle, 2, crank main body, 3, steel shaft, 4, first positioning pin, 5, second positioning pin, 6, rectangular through hole. DETAILED DESCRIPTION
[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0014] Please refer to Figure 1 With Figure 2 The utility model provides a technical scheme:
[0015] A foldable crank for hand generator, including crank main body 2, handle 1 and the steel shaft 3 of one end of the crank main body 2 and the other end are set up, the steel shaft 3 is used for connecting the internal bearing of generator. Handle 1 and steel shaft 3 are respectively through the positioning pin of corresponding activity connection crank main body 2, the crank main body 2 is equipped with the rectangular through hole 6 of matching at the position of steel shaft 3, the steel shaft 3 can hide after rotating folding.
[0016] Positioning pin includes first positioning pin 4 and second positioning pin 5, and is connected in the crank main body 2 through mounting hole.
[0017] Handle 1 can rotate 90 degrees outward around the first positioning pin 4, and is located on the same straight line with the crank main body 2 after rotating.
[0018] Steel shaft 3 can rotate 90 degrees inward around the second positioning pin 5, and just folds and hides in the rectangular through hole 6 of the crank main body 2 after rotating, which is convenient to store.
[0019] The utility model structure design is ingenious, and folding storage can be conveniently carried out when using, handle and steel shaft are completely stored, and the whole crank structure is in a linear type, which is convenient to store and solves the problem of inconvenient storage and occupying position of previous special-shaped crank.
[0020] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A foldable handle for a hand-cranked generator comprising a handle body, a grip provided at one end of the handle body and a steel shaft provided at the other end of the handle body, the steel shaft being for connecting to an internal bearing of a generator, characterised in that, The handle and the steel shaft are respectively connected with the rocking handle body through corresponding positioning pins, the rocking handle body is provided with a matching rectangular through hole at the position of the steel shaft, and the steel shaft can be hidden after being rotated and folded.
2. A foldable handle for a hand-cranked generator according to claim 1, wherein: The positioning pins include a first positioning pin and a second positioning pin, and both are connected in the rocking handle body through mounting holes.
3. A foldable handle for a hand-cranked generator according to claim 2, wherein: The handle can be rotated outward by 90 degrees around the first positioning pin, and is located on the same straight line with the rocking handle body after being rotated.
4. A foldable handle for a hand-cranked generator as defined in claim 2, wherein, The steel shaft can be rotated inward by 90 degrees around the second positioning pin, and is just folded and hidden in the rectangular through hole of the rocking handle body after being rotated.