Abstract
A toilet seat cover with an easily assembled and detached child seat includes an upper lid, a parent seat and a child seat. Two fixing shafts are respectively sleeved on two parent shaft sleeves. Two pins of two supports and the two fixing shafts are radially held with each other. Each of the two fixing shafts is axially inserted by a cylindrical shaft post. Two elastic c-shaped rings are respectively disposed at two ends of a child shaft sleeve and radially sleeved on the shaft post. At least one end of the child shaft sleeve disposes a central shaft which is radially inserted into a directional slot. When the child seat is not needed, the shaft post can be removed from the fixing shaft to attain a toilet seat cover with a common appearance.
Claims
1. A toilet seat cover with an easily assembled and detached child seat comprising an upper lid hinged to a parent seat and a child seat disposed between said upper lid and said parent seat, a child shaft sleeve being disposed in a rear of said child seat and located between two parent shaft sleeves which are disposed at two sides of a rear of said parent seat, each of said two parent shaft sleeves having a fixing shaft disposed therein for allowing a rotation thereof about said fixing shaft, two supports with respective pins being disposed, each of said pins being radially inserted in or extracted from each of said fixing shafts; wherein a cylindrical shaft post is axially sleeved on each of said two fixing shafts, two elastic c-shaped rings being respectively disposed at two ends of said child shaft sleeve and respectively sleeved on said shaft posts in a radial direction, at least one of said two ends of said child shaft sleeve having a central shaft radially inserted into a directional slot; wherein when a direction in which said c-shaped ring is radially sleeved on said shaft post is the same as a direction in which said central shaft is radially inserted into said directional slot, said shaft post provides a radial insertion and extraction fit with said c-shaped ring, and said central shaft provides a radial insertion and extraction fit with said directional slot, when a direction in which said c-shaped ring is radially disconnected from said shaft post is different from a direction in which said central shaft is radially withdrawn from said directional slot, said c-shaped ring and said central shaft cooperate to limit said shaft post.
2. The toilet seat cover with the easily assembled and detached child seat as claimed in claim 1, wherein two lid shaft sleeves disposed at two sides of a rear of said upper lid are respectively sleeved on said two parent shaft sleeves of said parent seat by respective pivots.
3. The toilet seat cover with the easily assembled and detached child seat as claimed in claim 1, wherein said directional slot radially defined by said shaft post goes up from a horizontal and slopes, or said directional slot is perpendicular to a horizontal surface.
4. The toilet seat cover with the easily assembled and detached child seat as claimed in claim 3, wherein said directional slot radially defined by said shaft post goes up from said horizontal and slopes by 453.
5. The toilet seat cover with the easily assembled and detached child seat as claimed in claim 1, wherein a buffer is sleeved on and fixed in said child shaft sleeve, said central shaft being a damping output shaft of said buffer, said damping output shaft being disposed in said c-shaped ring, two flat stop surfaces being radially formed on said damping output shaft to abut on said directional slot.
6. The toilet seat cover with the easily assembled and detached child seat as claimed in claim 5, wherein an adapting sleeve is sleeved on and fixed to each of said two ends of said child shaft sleeve, said c-shaped ring being disposed on said adapting sleeve, a rigid c-shaped sleeve being formed at each of said two ends of said child shaft sleeve and sleeved on an outer wall of said c-shaped ring, a clearance fit being provided between said c-shaped ring and said c-shaped sleeve.
7. The toilet seat cover with the easily assembled and detached child seat as claimed in claim 6, wherein said buffer is sleeved on and fixed in said adapting sleeve, said damping output shaft of said buffer being projected from said adapting sleeve and located inside said c-shaped ring.
8. The toilet seat cover with the easily assembled and detached child seat as claimed in claim 1, wherein a positioning sleeve is axially disposed on said shaft post, a positioning pin being axially disposed on said fixing shaft, said positioning sleeve and said positioning pin being held with each other.
9. The toilet seat cover with the easily assembled and detached child seat as claimed in claim 8, wherein an end of each of said parent shaft sleeves forms a hole, said positioning sleeve being inserted into said hole for holding said positioning pin of said fixing shaft in said parent shaft sleeve, a running fit being provided between said hole and said positioning sleeve.
10. The toilet seat cover with the easily assembled and detached child seat as claimed in claim 9, further including two plugs for blocking said holes respectively.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) FIG. 1 is an exploded view showing this invention;
(2) FIG. 2 is an exploded view showing elements for a child seat of this invention;
(3) FIG. 3 is a cross-sectional view showing this invention;
(4) FIG. 4 is a perspective view showing this invention in an open state;
(5) FIG. 5 is a schematic view showing the child seat of this invention which is opened by 45;
(6) FIG. 6 is a cross-sectional view showing the child seat of this invention which is opened by 45;
(7) FIG. 7 is a schematic view showing a state of disconnecting the c-shaped ring from the shaft post when the child seat is opened by 45;
(8) FIG. 8 is a schematic view showing a state of disconnecting the c-shaped ring and the central shaft from the shaft post;
(9) FIG. 9 is a schematic view showing that the c-shaped ring and the central shaft limit the shaft post when the open angle of the child seat is over 45;
(10) FIG. 10 is a schematic view showing that the c-shaped ring and the central shaft limit the shaft post when the open angle of the child seat is less than 45;
(11) FIG. 11 is a perspective view of this invention showing the plugs adapted to fit the holes; and
(12) FIG. 12 is a perspective view of this invention showing the holes blocked by the plugs.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
(13) The advantages of this invention are described in conjunction with the following embodiment and accompanying drawings.
(14) Referring to FIG. 1, FIG. 3 and FIG. 4, a toilet seat cover with an easily assembled and detached child seat of this invention comprises an upper lid 10, a parent seat 20 and a child seat 30 disposed between the upper lid 10 and the parent seat 20. A child shaft sleeve 31 is disposed in a rear of the child seat 30 and located between two parent shaft sleeves 21 disposed at two sides of a rear of the parent seat 20. Two lid shaft sleeves 11 are respectively disposed at an outside of the parent shaft sleeve 21. A fixing shaft 40 about which the parent shaft sleeve 21 is rotated is disposed inside each of the two parent shaft sleeves 21. Two supports 50 with respective pins 51 are disposed. Each pin 51 is inserted into a slot 211, which is radially defined on the parent shaft sleeve 21, and radially connected to the fixing shaft 40. The lid shaft sleeves 11 are disposed at two sides of the rear of the upper lid 10. The lid shaft sleeve 11 is sleeved on the parent shaft sleeve 21 in the rear of the parent seat 20 by a pivot 90. The upper lid 10, the parent seat 20, the pivots 90, the fixing shafts 40 and the supports 50 are assembled as a general toilet seat cover for a closestool.
(15) Referring to FIG. 1, FIG. 3 and FIG. 11, the parent shaft sleeve 21 includes a hole 212 formed at an end thereof.
(16) Referring to FIG. 1 and FIG. 3, two cylindrical shaft posts 60 are provided. Each cylindrical shaft post 60 has a positioning sleeve 61 axially disposed on an axial direction thereof. A directional slot 62 is radially formed on the shaft post 60. The directional slot 62 radially defined on the shaft post 60 goes up from a horizontal and slopes by 45. A positioning pin 41 is axially disposed on the fixing shaft 40. The positioning sleeve 61 is inserted into the hole 212 for holding the positioning pin 41 of the fixing shaft 40 in the parent shaft sleeve 21 in position. The hole 212 and the positioning sleeve 61 rotatably fit with each other, thereby completing an axial and quick connection of the shaft post 60 to the fixing shaft 40.
(17) Referring to FIG. 2, a rigid c-shaped sleeve 32 is formed at each end of the child shaft sleeve 31 that is set in the middle of the rear of the child seat 30. Two adapting sleeves 70 are respectively sleeved on and fixed to two ends of the child shaft sleeve 31. An elastic c-shaped ring 71 is disposed on the adapting sleeve 70 and provides a radial clearance fit with the c-shaped sleeve 32. A direction at which a radial opening 72 of the c-shaped ring is directed is the same as a direction at which a radial opening 33 of the c-shaped sleeve is directed. A buffer 80 is axially sleeved on and fixed in one of the adapting sleeves 70. A damping output shaft 81 of the buffer 80 capable of rotating is disposed in the c-shaped ring 71. Two flat stop surfaces 82 are radially formed on the damping output shaft 81 to abut on the directional slot 62. The other one of the adapting sleeves 70 does not need the buffer 80. Thus, the assembly of the child seat 30 is completed as illustrated in FIG. 1.
(18) Referring to FIG. 1, FIG. 8, FIG. 6 and FIG. 3, the child seat 30 is opened to slope with respect to a horizontal surface by 45. The radial opening 72 of the c-shaped ring is aimed at the cylindrical shaft post 60. The damping output shaft 81 is radially aimed at the directional slot 62 of the shaft post 60 and inserted into the shaft post 60 by making the child seat 30 slope down, thereby allowing the c-shaped ring 71 to lock with the shaft post 60 elastically and allowing the c-shaped ring 71 to rotate about the shaft post 60. The damping output shaft 81 is radially lodged in the directional slot 62 through the radial opening 72 of the c-shaped ring. The flat stop surfaces 82 of the damping output shaft 81 abut on a wall of the directional slot 62 to provide a stop running fit. As shown in FIG. 7, the adapting sleeve 70 fixed to the other end of the child shaft sleeve 31 does not mount a buffer therein. The shaft post 60, not shown in this figure, is lodged in the c-shaped ring 71 through the radial opening 72 of the c-shaped ring. Thus, the child seat 30 can be mounted on the general toilet seat cover for the closestool.
(19) FIG. 6 shows the upward rotary angle of the child seat 30 is not about 45. When an angle formed between the child seat 30 and a horizontal surface, as shown in FIG. 9 and FIG. 10, is different from an orientation angle of the directional slot 62, the direction f in which the damping output shaft 81 slides off the directional slot 62 and the direction in which the c-shaped ring 71 is disconnected from the shaft post 60 are not in the same radial direction because of an upward pulling force F imparted to the child seat 30. A deformation space of the c-shaped ring 71 is radially limited by the rigid c-shaped sleeve 32. The c-shaped ring 71 and the damping output shaft 81 grip and limit the shaft post 60 to render the shaft post 60 unable to separate from the c-shaped ring 71. Thus, the child seat 30 cannot be detached.
(20) Referring to FIG. 5 and FIG. 6, to detach the child seat 30 from the fixing shaft 40 in the parent shaft sleeve 21, the child seat 30 is horizontally turned up by 45 so that the direction in which the damping output shaft 81 radially slides off the directional slot 62 can be the same as the direction in which the c-shaped ring 71 is disconnected from the shaft post 60. Then, the child seat 30 is pulled up in a slanting direction and extracted to disconnect the child seat 30 from the shaft post 60. As shown in FIG. 7 and FIG. 8, the damping output shaft 81 radially slides off the directional slot 62, and the c-shaped ring 71 is elastically forced and displaced so that the shaft post 60 can separate from the radial opening 72 of the c-shaped ring. Thereafter, as shown in FIG. 1, each positioning sleeve 61 of each shaft post 60 is pulled out of each hole 212, and the elements of the child seat 30 and the shaft posts 60 are removed. Finally, as shown in FIG. 11 and FIG. 12, the plugs 100 are adapted to block the holes 212 so that this invention can be converted into a general toilet seat cover for the closestool by combing the upper lid 10, the parent seat 20, the pivots 90, the fixing shafts 40 and the supports 50 together.
(21) While the embodiment of this invention is shown and described, it is understood that further variations and modifications may be made without departing from the scope of this invention.
