Adjustable crank device

Abstract

The utility model discloses an adjustable crank device which comprises a hexagonal head, an outer pipe, an inner pipe and a movable joint folding handle. The outer pipe and the inner pipe are both preferably rectangular pipes, the outer pipe is arranged outside one end of the inner pipe in a sleeving mode, a plurality of first through holes are formed in the outer pipe at equal intervals, and a plurality of second through holes are formed in the inner pipe at equal intervals. The hexagonal head is arranged at the end, away from the inner pipe, of the outer pipe, the movable joint folding handle is arranged at the end, away from the outer pipe, of the inner pipe, a third through hole is formed in the end, away from the inner pipe, of the outer pipe, the hexagonal head is arranged in the third through hole in a penetrating mode, and a plurality of fourth through holes are formed in the side face of the hexagonal head at equal intervals. A third through hole is formed in the outer pipe, a fifth through hole is formed in the outer pipe, the axial direction of the fifth through hole is perpendicular to the axial direction of the third through hole, and a special-shaped hole is formed in the hexagonal head. The adjustable crank device is convenient to store and can be suitable for various different working environments.

Description

Technical Field

[0001] The utility model relates to the technical field of crank handles, in particular to an adjustable crank handle device. Background Art

[0002] In industrial production, disassembling and tightening parts of various equipment are common operations. To complete these tasks efficiently and conveniently, crank devices have emerged. They typically consist of a handle and connecting parts. Turning the handle generates torque, thereby achieving part removal or tightening.

[0003] Crank handles are widely used in numerous fields, including machinery manufacturing, automotive repair, and aerospace. In these fields, equipment complexity and precision continue to increase, leading to increasingly stringent requirements for component disassembly and fastening. However, existing crank handles suffer from the disadvantage of being non-adjustable. This makes them difficult to use in confined operating spaces, such as within cramped machine interiors, hindering accurate and efficient operation. Utility Model Content

[0004] In view of the above problems existing in the prior art, the purpose of the embodiments of the present invention is to provide an adjustable crank device that is easy to store and can be applied to a variety of different working environments.

[0005] The utility model solves the technical problem by adopting the following technical solution: an adjustable crank device comprises a hexagonal head, an outer tube, an inner tube and a movable folding handle;

[0006] The outer tube and the inner tube are both rectangular tubes, the outer tube is sleeved on the outside of one end of the inner tube, the outer tube is provided with a plurality of through holes 1 at equal intervals, and the inner tube is provided with a plurality of through holes 2 at equal intervals;

[0007] The hexagonal head is arranged at one end of the outer tube away from the inner tube, and the movable folding handle is arranged at one end of the inner tube away from the outer tube.

[0008] Furthermore, a through hole three is provided at one end of the outer tube away from the inner tube, the hexagonal head is passed through the through hole three, a plurality of through holes four are equidistantly provided on the side of the hexagonal head, and a through hole five is provided on the outer tube, and the axial direction of the through hole five is perpendicular to the axial direction of the through hole three.

[0009] Furthermore, a special-shaped hole is provided in the hexagonal head.

[0010] Furthermore, a through hole six is ​​formed at one end of the inner tube away from the inner tube, and one end of the hinged folding handle is rotatably fitted in the through hole six of the inner tube.

[0011] Furthermore, it includes a limiting assembly, which includes a long chain and two quick-release pins, one of the quick-release pins is inserted into the through hole five, and simultaneously inserted into the hexagonal head and the through hole four corresponding to the through hole five, and the other quick-release pin is inserted into the through hole one of the outer tube, and simultaneously inserted into the inner tube and the through hole two corresponding to the through hole one.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0013] 1. The quick-release pin can be quickly inserted and removed to quickly adjust the position of the hexagonal head and the inner tube on the outer tube, thereby changing the overall length and width of the crank mechanism. By adjusting the length and width of the crank mechanism in this way, the operator can perform accurate and efficient operations even in narrow machine interiors.

[0014] 2. It is easy to replace the hexagonal head with different shaped holes and to screw parts of different shapes;

[0015] 3. The rocker device can reduce the required storage space, making it easier to store and carry the rocker device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] In the picture:

[0018] Figure 1 It is a three-dimensional schematic diagram of the crank device in the utility model;

[0019] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the hexagonal head;

[0020] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the outer tube in FIG.

[0021] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the inner tube in;

[0022] Figure 5 yes Figure 1 A three-dimensional schematic diagram of the limiting component in FIG.

[0023] Figure 6 This is a front view of the crank device of the present invention in a folded state;

[0024] In the picture:

[0025] 1. Hexagonal head;

[0026] 101, special-shaped hole; 102, through hole 4;

[0027] 2. External control;

[0028] 201, through hole three; 202, through hole one; 203, through hole five;

[0029] 3. Inner tube;

[0030] 301, through hole six; 302, through hole two;

[0031] 4. Jointed folding handle;

[0032] 5. Limiting components;

[0033] 51. Long chain; 52. Quick release pin. DETAILED DESCRIPTION

[0034] The present invention will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, and therefore only shows the components related to the present invention.

[0035] See also Figure 1-6 The utility model provides a technical solution: an adjustable crank device, including a hexagonal head 1, an outer tube 2, an inner tube 3, a movable folding handle 4 and a limit assembly 5.

[0036] A plurality of through holes 102 are equidistantly formed on the side surface of the hexagonal head 1 , and a special-shaped hole 101 is formed inside the hexagonal head 1 .

[0037] The outer tube 2 is a rectangular tube, with a third through hole 201 opened at one end of the outer tube 2, a plurality of first through holes 202 opened at equal intervals on the outer tube 2, and a fifth through hole 203 opened on the outer tube 2, the axial direction of the fifth through hole 203 being perpendicular to the axial direction of the third through hole 201.

[0038] The inner tube 3 is a rectangular tube. A through hole 6 301 is opened at one end of the inner tube 3 , and a plurality of through holes 2 302 are opened at equal intervals on the inner tube 3 .

[0039] One end of the hinged folding handle 4 is rotatably fitted into the through hole 301 of the inner tube 3 .

[0040] The limiting assembly 5 includes a long chain 51 and two quick-release pins 52 respectively provided at one end of the long chain 51 .

[0041] The hexagonal head 1 is provided at one end of the outer tube 2 away from the inner tube 3 , and the hexagonal head 1 is passed through the third through hole 201 .

[0042] The outer tube 2 is sleeved on the outer portion of the inner tube 3 away from the through hole 6 301.

[0043] One of the quick-release pins 52 is inserted into the fifth through hole 203, and at the same time is inserted into the hexagonal head 1 and the through hole 4 102 corresponding to the fifth through hole 203. The other quick-release pin 52 is inserted into the through hole 1 202 of the outer tube 2, and at the same time is inserted into the inner tube 3 and the through hole 2 302 corresponding to the through hole 1 202.

[0044] In some embodiments, all parts are standard parts and are made of standard parts, which reduces production costs.

[0045] It can be understood that by replacing different through hole four 102 on the hexagonal head 1 with the corresponding through hole five 203, the depth of the hexagonal head 1 inserted into the through hole three 201 can be adjusted, that is, the overall lateral width of the crank device can be changed. Similarly, by replacing different through hole one 202 and through hole two 302 on the outer tube 2, the depth of the inner tube 3 inserted into the outer tube 2 can be adjusted, thereby changing the overall length of the crank device. By adjusting the length and width of the crank device in this way, the operator can perform accurate and efficient operations even in a narrow machine.

[0046] After adjusting the position of the hexagonal head 1, insert the quick-release pin 52 into the corresponding through hole 4 102 and through hole 5 203 to fix the hexagonal head 1 and the outer tube 2, and insert the quick-release pin 52 into the corresponding through hole 1 202 and through hole 2 302 to fix the outer tube 2 and the inner tube 3.

[0047] The two quick release pins 52 are connected by a long chain 51 to prevent the quick release pins 52 from being lost when they are pulled out.

[0048] The hexagonal head 1 with the special-shaped hole 101 can be used to screw the parts that need to be screwed corresponding to its shape. When the type of part to be screwed is different from the special-shaped hole 101 of the hexagonal head 1, the quick-release pin 52 inserted in the through hole four 102 and the through hole five 203 can be pulled out, the hexagonal head 1 can be removed, and replaced with a hexagonal head 1 with a special-shaped hole 101 corresponding to the shape of the part to be screwed, and then the quick-release pin 52 can be inserted back, and the replacement of the hexagonal head 1 can be quickly completed.

[0049] The outer tube 2 and the inner tube 3 are both rectangular tubes. It can be understood that the rectangular tube has strong lateral force and high torque resistance, and can withstand greater force when twisting the parts that need to be twisted.

[0050] In some of the embodiments, the corrosion resistance, wear resistance and high temperature resistance of the crank device can be increased by performing hot-dip galvanizing treatment on the exterior of the components of the crank device.

[0051] When storing the crank device, the hinged folding handle 4 can be bent, the middle through hole 4 102 of the hexagonal head 1 can be aligned with the through hole 2 302, and the inner tube 3 can be retracted into the outer tube 2 to the greatest extent, thereby reducing the space required for storing the crank device.

[0052] In some of the embodiments, the hexagonal head 1 can be removed and placed vertically and close to the outer tube 2, with the through hole four 102 corresponding to the through hole one 202, and then the hexagonal head 1 and the outer tube 2 can be wrapped with a long chain 51, and finally the quick-release pin 52 can be inserted into the corresponding through hole four 102 and through hole one 202, so that the storage of the crank device can be completed, and the storage space required for the crank device can be further reduced.

[0053] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the scope of the present invention. The technical scope of this utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An adjustable crank device, characterized in that: Includes hexagonal head, outer tube, inner tube and hinged folding handle; The outer tube and the inner tube are both rectangular tubes, the outer tube is sleeved on the outside of one end of the inner tube, the outer tube is provided with a plurality of through holes 1 at equal intervals, and the inner tube is provided with a plurality of through holes 2 at equal intervals; The hexagonal head is provided at one end of the outer tube away from the inner tube, and the hinged folding handle is provided at one end of the inner tube away from the outer tube; A through hole three is provided at one end of the outer tube away from the inner tube, the hexagonal head is passed through the through hole three, a plurality of through holes four are equidistantly provided on the side surface of the hexagonal head, a through hole five is provided on the outer tube, and the axial direction of the through hole five is perpendicular to the axial direction of the through hole three.

2. The adjustable crank device according to claim 1, characterized in that: A special-shaped hole is provided in the hexagonal head.

3. The adjustable crank device according to claim 1, characterized in that: A through hole six is ​​formed at one end of the inner tube away from the inner tube, and one end of the hinged folding handle is rotatably fitted in the through hole six of the inner tube.

4. The adjustable crank device according to claim 1, characterized in that: It includes a limiting component, which includes a long chain and two quick-release pins, one of which is inserted into the through hole five and simultaneously inserted into the hexagonal head and the through hole four corresponding to the through hole five, and the other quick-release pin is inserted into the through hole one of the outer tube and simultaneously inserted into the inner tube and the through hole two corresponding to the through hole one.

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