BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is a mop pole, especially a strength saving spiral mop pole that rotates when pressed.
2. Description of the Prior Arts
Mop is an ordinary cleaning tool in daily life. The mop has a pole, a mop head and cotton ropes. The mop head is connected to one end of the pole, and the cotton ropes are mounted on the outer surface of the mop head. The cotton ropes can be used to clean away dirt when absorbing water. The wet cotton ropes are strained and twisted by hands to remove surplus water, but the straining and twisting is laborious.
A conventional rotating mop was developed for improving the shortcoming of being too laborious. The mop head is pivoted around one end of the pole. The rotating mop is operated with a spin tub. The spin tub has a container and a driving mechanism, and the container is pivoted in the spin tub and connected to the driving mechanism. To remove surplus water from the wet cotton ropes, the mop head and the cotton ropes are put in the container. The driving mechanism is trodden on by a user to rotate the container. The surplus water is removed from the wet cotton ropes by means of rotating the spin container.
The conventional rotating mop is operated with a spin tub mounted with a driving mechanism. The spin tub has complicated structure that causes high production cost. The spin tub is heavy and the capacity of collecting water is low due to the driving mechanism mounted therein. Besides, it is inconvenient to hold the rotating mop and tread on the driving mechanism at the same time in the spinning process.
To overcome the shortcomings, the present invention provides a strength saving spiral mop pole to mitigate or obviate the aforementioned problems.
SUMMARY OF THE INVENTION
The main objective of the present invention is to provide a strength saving spiral mop pole that is rotatable by pressing. The present invention can be operated easily by users and produced with low cost due to the simplified structure.
The strength saving spiral mop pole comprises a gripping rod that is hollow. An outer rod is mounted in the gripping rod and has a receiving space and a spiral concave portion. The receiving space is formed inside of the outer rod. The spiral concave portion is formed in the outer rod. An inner rod is mounted in the receiving space of the outer rod and has an installation hole. The installation hole is formed on the inner rod. A rotating module is connected to the inner rod and has a pressing block and a threaded block. The pressing block is mounted in the installation hole and has a guiding rod. The threaded block is penetrated by the guiding rod and fastened to the pressing block, and has multiple spiral protrusive parts formed on the threaded block. The spiral protrusive parts are fastened together by screws with the spiral concave portion. A holding device is mounted on the inner rod.
The threaded block can be rotated in the receiving space while pressing the outer rod. The inner rod is driven by the threaded block and rotating as well. In actual use, a mop head and cotton ropes are mounted to the inner rod. The cotton ropes are used to absorb water. The mop head and the cotton ropes are put into an ordinary spin tub and then the outer rod is pressed for water removal. After the water removal, the inner rod is held in position by the holding device.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a strength saving spiral mop pole in accordance with the present invention;
FIG. 2 is an exploded perspective view of the strength saving spiral mop pole in FIG. 1;
FIG. 3 is an enlarged partially cross-sectional side view of an outer rod of the strength saving spiral mop pole in FIG. 1;
FIG. 4 is a perspective view of a pressing block of the strength saving spiral mop pole in FIG. 1;
FIG. 5 is a perspective view of a threaded block of the strength saving spiral mop pole in FIG. 1;
FIG. 6 is a side view of the threaded block of the strength saving spiral mop pole in FIG. 1;
FIG. 7 is an enlarged partially cross-sectional side view of the strength saving spiral mop pole in FIG. 1; and
FIG. 8 is an operational perspective view of the strength saving spiral mop pole in FIG. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
With reference to FIG. 1, a strength-saving spiral mop pole in accordance with the present invention comprises a gripping rod 10, an outer rod 20, an inner rod 30, a rotating module 40 and a holding device 50.
With reference to FIGS. 1 and 2, the gripping rod 10 is hollow and has a connecting unit 11. The connecting unit 11 is mounted on the gripping rod 10.
With reference to FIGS. 2, 3 and 7, the outer rod 20 is mounted partially in the gripping rod 10 and has a receiving space 21, two fastening holes 201, a spiral concave portion 22, a cap 23, a spring 24 and a fastening part 25. The receiving space 21 is formed in the outer rod 20 and the outer rod 20 has two opening ends. The two fastening holes 201 are formed opposite each other on the outer rod 20 and are connected to the receiving space 21. The spiral concave portion 22 is formed helically in the outer rod 20 and is away from the opening ends of the outer rod 20. The cap 23 is mounted in the receiving space 21 and has two lumps 231. The two lumps 231 are formed opposite each other on the cap 23 and are fastened respectively to the two fastening holes 201. The spring 24 has a linking end 241 and a buffering end 242. The linking end 241 has a diameter larger than a diameter of the buffering end 242. The linking end 241 is fastened in the cap 23 and the buffering end 242 extends outside of the cap 23. The fastening part 25 is formed on one of the opening ends of the outer rod 20 and is located above the fastening holes 201. The fastening part 25 is mounted in the gripping rod 10 and is held in position by the connecting unit 11.
With reference to FIGS. 2 and 7, the inner rod 30 is mounted in the receiving space 21 of the outer rod 20 and has an installation hole 31. The installation hole 31 is formed on the inner rod 30.
With reference to FIGS. 2 and 4, the rotating module 40 is connected to the inner rod 30 and has a pressing block 41, a threaded block 42, a stationary component 43 and a gasket 44. The pressing block 41 is mounted through the installation hole 31 and is surrounded by the outer rod 20. With reference to FIG. 6, the pressing block 41 has a guiding rod 411, four abutting surfaces 412 and four pushing surfaces 413. The guiding rod 411 is formed and extends perpendicularly on the pressing block 41, and the guiding rod 411 has a lock hole 4111 formed on the guiding rod 411. The abutting surfaces 412 and the pushing surfaces 413 are formed on the guiding rod 411. Each abutting surface 412 is clamped between the adjacent pushing surfaces 413 and at an acute angle with respect to the pushing surfaces 413.
With reference to FIGS. 5 and 6, the threaded block 42 is fastened with the pressing block 41 and has a through hole 421, multiple spiral protrusive parts 422, four abutted surfaces 423, four pushed surfaces 424 and multiple oblique grooves 425. The through hole 421 is formed through the threaded block 42. The guiding rod 411 of the pressing block 41 is mounted through the through hole 421. The spiral protrusive parts 422 are formed obliquely on the threaded block 42, and the spiral protrusive parts 422 are spaced apart from one another. The oblique grooves 425 are formed between the spiral protrusive parts 422. The spiral concave portion 22 is engaged with the spiral protrusive parts 422 and the oblique grooves 425. The abutted surfaces 423 and the pushed surfaces 424 are formed on the bottom side of the threaded block 42, and are attached respectively to the corresponding abutting surfaces 412 and pushing surfaces 413.
The stationary component 43 is mounted through the through hole 421 and is mounted securely in the lock hole 4111 of the guiding rod 411. The gasket 44 is mounted on the threaded block 42, is penetrated by the stationary component 43, and is pressed by the buffering end 242 of the spring 24.
With reference to FIGS. 1 and 2, the holding device 50 is mounted on the inner rod 30 and surrounds the outer rod 20. The holding device 50 is distal from the gripping rod 10 and has a clamping component 51 mounted pivotally on the holding device 50. The clamping component 51 is used for limiting the rotation of the inner rod 30.
With reference to FIGS. 1, 7 and 8, in actual use of the present invention, a mop head and cotton ropes are mounted to the inner rod 30, and then are operated with an ordinary spin tub having a container. The mop head and cotton ropes are put in the container after absorbing water. The gripping rod 10 is pressed so that the threaded block 42 is rotated in the outer rod 20. Furthermore, the inner rod 30 connecting to the pressing block 41 is driven by the threaded block 42. In the spinning process, the outer rod 20 moves straightly along the spiral concave portion 22 at the same time. When the outer rod 20 moves down to the bottom side, the gasket 44 is pressed by the buffering end 242 of the spring 24 and then dragging the gripping rod 10 to an opposite direction, and the threaded block 42 is separated from the pressing block 41. The inner rod 30 moves straightly without rotating. The above action that makes the inner rod 30 rotate in only one direction is repeated when the outer rod 20 moves to the top side. So the spinning removal of water is achieved by the rotating of the outer rod 30.
The strength saving spiral mop pole of the present invention could be operated with an ordinary water container rather than a conventional spin tub having a driving mechanism. So the present invention could be used easily and produced with low cost.
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Patent Grant
9021648
