阅读说明：本技术 拖把头 (Mop head ) 是由 丁明哲 于 2019-03-06 设计创作，主要内容包括：本发明涉及一种拖把头,包含：拖把头框,形成有多数个接合凹部,每个接合凹部的窄接部包含第一凸件组、第一穿空部、第二凸件组及第二穿空部；以及清洁部件。窄接部的第一凸件组及第二凸件组夹持清洁部件,第一穿空部及第二穿空部提供空间使冲头不破坏窄接部情况下将该清洁部件确实地冲入接合凹部。(The present invention relates to a mop head comprising: the mop head frame is provided with a plurality of joint concave parts, and the narrow part of each joint concave part comprises a first convex part group, a first hollow penetrating part, a second convex part group and a second hollow penetrating part; and a cleaning member. The first and second protruding members of the narrow-width part clamp the cleaning member, and the first and second hollow parts provide a space for the punch to reliably punch the cleaning member into the engaging recess without damaging the narrow-width part.)

1. A mop head, comprising:

a mop head frame, which is coated and injection molded by a mold, wherein the mold is provided with a plurality of convex parts, a plurality of joint concave parts are formed on the lower surface of the mop head frame by the plurality of convex parts, each joint concave part comprises a lower opening, a closed upper top part, a side wall and a narrow part, the closed upper top part is closed and sealed by the upper surface of the mop head frame, the side wall is arranged between the lower opening and the closed upper top part, the narrow part comprises a first convex part group, a first penetrating part, a second convex part group and a second penetrating part, the narrow part is arranged on the side wall in a surrounding way according to the sequence of the first convex part group, the first penetrating part, the second convex part group and the second penetrating part, and the first convex part group and the second convex part group extend from the side wall to the longitudinal direction of the joint concave part by the injection molding, the first through-void portion is a through-void space adjacent to the ring side of the first set of protrusions and the ring side of the second set of protrusions and between the ring side of the first set of protrusions and the ring side of the second set of protrusions, the second through-void portion is a through-void space adjacent to the other ring side of the first set of protrusions and the other ring side of the second set of protrusions and between the other ring side of the first set of protrusions and the other ring side of the second set of protrusions, the first through-void portion faces the second through-void portion, and a receiving recess is formed between the upper closure top and the narrowed portion, wherein after the injection molding, the protrusion abuts against and passes through the first set of protrusions and the second set of protrusions and is forcedly released from the engaging recess; and

the cleaning component is provided with a punching part, a plugging part and a non-plugging part, the punching part and the plugging part are plugged into the accommodating concave part by a straight punch which is abutted against the punching part and passes through the first hollow penetrating part and the second hollow penetrating part by the transverse width and the longitudinal thickness, and then the straight punch reversely moves back to pass through the first hollow penetrating part and the second hollow penetrating part and is drawn out from the joint concave part.

2. The mop head of claim 1, wherein the first through-hole width of the first through-hole in the side wall and the second through-hole width of the second through-hole in the side wall are both greater than the through-hole widths between the respective angled protrusions of the first and second sets of protrusions.

3. A mop head according to claim 1 or 2, wherein the first set of protrusions is a plurality of adjacent angular protrusions, each of which is an adjacent ring provided on the side wall, and the second set of protrusions is a plurality of adjacent angular protrusions, each of which is an adjacent ring provided on the side wall.

4. A mop head according to claim 1 or 2, characterized in that said first through-opening is parallel to said second through-opening on both radial sides of said lower opening.

5. The mop head according to claim 1 or 2, wherein said first set of protrusions is a continuous protrusion having a continuous thickness in a radial direction of said lower opening, and said second set of protrusions is a continuous protrusion having a continuous thickness in a radial direction of said lower opening.

6. A mop head according to claim 1 or 2, characterized in that the lower opening has a buffer distance in the axial direction of the lower opening to the first set of protrusions and the second set of protrusions.

Technical Field

The present invention relates to a mop head, and more particularly to a mop head having a non-apertured engagement recess which is highly engageable with a cleaning member.

Background

Recently, flat mop heads have been popular, which have the advantages of low height, capability of penetrating into dead corners which are difficult to clean, and easiness in rotation and folding, so that the cleaning effect, the self-cleaning effect and the storage effect are ensured. However, the cleaning member (i.e., the strip of cotton cloth) needs to be engaged to the flat mop head in a different manner than conventional bundled mops.

Disclosure of Invention

Accordingly, it is an object of the present invention to provide a mop head which can securely engage the cleaning member in a design in which only a lower opening is provided in a flat-shaped mop head frame and an engaging recess of an upper opening is not provided (i.e., an engaging recess without an upper hole).

The invention provides a mop head for solving the technical means adopted by the problems in the prior art, which comprises: the mop head frame is formed by injection molding through a mold, the mold is provided with a plurality of convex parts, a plurality of joint concave parts are formed on the lower surface of the mop head frame through the plurality of convex parts, each joint concave part comprises a lower opening, a closed upper top part, a side wall and a narrow part, the closed upper top part is closed and sealed by the upper surface of the mop head frame, the side wall is arranged between the lower opening and the closed upper top part, the narrow part comprises a first convex part group, a first penetrating part, a second convex part group and a second penetrating part, the narrow part is annularly arranged on the side wall in the sequence of the first convex part group, the first penetrating part group, the second convex part group and the second penetrating part, the first convex part group and the second convex part group extend from the side wall to the longitudinal axis of the joint concave part through the injection molding, and the first penetrating part is adjacent to the ring side of the first convex part group and the ring side of the second convex part group and is adjacent to the ring side of the first convex part group and the second convex part group and is at the ring side of the first convex part and the second convex part group A through empty space between the ring sides, wherein the second through empty space is adjacent to the other ring side of the first convex part set and the other ring side of the second convex part set and is a through empty space between the other ring side of the first convex part set and the other ring side of the second convex part set, the first through empty space is opposite to the second through empty space, and an accommodating concave part is formed between the closed upper top and the narrow part, wherein after the injection molding, the convex part is propped against and penetrates through the first convex part set and the second convex part set to forcedly remove the membrane from the engaging concave part; and the cleaning component is provided with a punching part, a plugging part and a non-plugging part, the punching part is abutted against the punching part through a straight punch and enables the straight punch to plug the punching part and the plugging part into the accommodating concave part through the first hollow penetrating part and the second hollow penetrating part by the transverse width and the longitudinal thickness, and then the straight punch reversely moves back to be drawn out from the joint concave part through the first hollow penetrating part and the second hollow penetrating part.

In one embodiment of the present invention, a mop head is provided, wherein the first through-hole width of the first through-hole on the side wall and the second through-hole width of the second through-hole on the side wall are both greater than the through-hole widths between the angle protrusions of the first protrusion set and the second protrusion set respectively.

In one embodiment of the invention, a mop head is provided wherein the first set of protrusions is a plurality of adjacent angular protrusions, each of which is an adjacent ring on the sidewall, and the second set of protrusions is a plurality of adjacent angular protrusions, each of which is an adjacent ring on the sidewall.

In one embodiment of the present invention, there is provided a mop head, wherein the first through-hollow portion is parallel to the second through-hollow portion on both sides of the lower opening in the radial direction.

In one embodiment of the present invention, there is provided a mop head, wherein the first set of protrusions is a continuous protrusion having a continuous thickness in a radial direction of the lower opening, and the second set of protrusions is a continuous protrusion having a continuous thickness in a radial direction of the lower opening.

In one embodiment of the present invention, a mop head is provided, wherein the lower opening has a buffer distance between the first and second sets of protrusions in the axial direction of the lower opening.

The mop head of the present invention has the following effects: as shown in fig. 2, the cleaning member 2 is engaged with the narrow portion 15 of the joining recess 11, and the punch is withdrawn from the joining recess 11 without breaking the narrow portion 15 and while the cleaning member 2 is securely joined to the joining recess 11. As shown in fig. 6, the present invention can make the punch P reliably punch the cleaning member 2 into the engaging recess 11 by applying a relatively gentle force to the punch P, and can make the punch P retreat from the engaging recess 11 by applying a relatively gentle force to the punch P without affecting the engaging condition of the cleaning member 2 and the narrowed portion 15

Drawings

Fig. 1 is a perspective view showing a mop head mounted to a mop according to an embodiment of the present invention.

Fig. 2 is a perspective bottom view of a mop head frame showing a mop head according to an embodiment of the present invention.

Fig. 3 is a perspective top view of a mop head frame showing a mop head according to an embodiment of the present invention.

Fig. 4a is a schematic bottom view showing a mop head according to an embodiment of the present invention.

Fig. 4b is a schematic bottom view showing a comparison of the size of the mop head and the punch according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional side view of a mop head frame showing a mop head according to an embodiment of the present invention.

Fig. 6 is a schematic side sectional view showing a cleaning member of a mop head being punched into an engagement recess by an in-line punch according to an embodiment of the present invention.

Fig. 7 is a schematic cross-sectional side view showing a mop head according to an embodiment of the present invention.

Fig. 8 is a perspective view showing a mold for forming the mop head of the present invention.

Reference numerals:

100 mop head

1 mop head frame

11 engaging recess

12 lower opening

13 closing the upper top

14 side wall

15 narrow part

151 first male member set

151a ring side

Ring side of 151b

151c angle convex body

151d inner wall surface

152 first piercing portion

153 second male member group

153a ring side

153b ring side

153c corner convex body

153d inner wall surface

154 second penetration

16 accommodating recess

17 lower surface

18 upper surface

2 cleaning member

21 punch-in part

22 stuffing part

23 non-inserted part

B mop base

H-shaped mop holding rod

M mould

M1 convex part

P-shaped punch

T longitudinal thickness

W transverse width

W1 first penetration width

W2 second penetration width

Width of W3 void

Width of W4 void

Detailed Description

Embodiments of the present invention will be described below with reference to fig. 1 to 8. The description is not intended to limit the embodiments of the present invention, but is one example of the present invention.

Referring to FIG. 1, there is shown a mop head 100, mop base B and mop grip H according to an embodiment of the present invention. The mop head 100 comprises: a mop head frame 1 and a cleaning component 2. Specifically, the two mop heads 100 of the present invention are detachably mounted on the side and lower portions (fig. 1 shows the combination of the two) of the mop base B, which is connected to the mop grip H, at the upper portion (as shown by the visible surface in fig. 3) of the mop head frame 1, thereby forming a mop for mopping and cleaning. In the embodiment, the cleaning member 2 may be a cotton cloth strip, but the specific implementation is not limited thereto.

As shown in the perspective bottom view of the mop head frame 1 of the mop head 100 of fig. 2, a plurality of engaging recesses 11 are formed in the bottom surface 17 of the mop head frame 1, each engaging recess 11 includes a bottom opening 12, a closed top 13, a sidewall 14 and a narrowed portion 15, the closed top 13 is closely sealed by the top surface 18 of the mop head frame 1, and the sidewall 14 is between the bottom opening 12 and the closed top 13. That is, the joining recess 11 is a concave hole opened in the lower surface 17 of the mop head frame 1. The recess is open at the lower opening 12 and is closed by the upper surface 18 of the mop head frame 1 closing the upper top 13. The side wall 14 of the engagement recess 11 is a cylindrical wall surface. Fig. 3 is a perspective top view of the mop head frame 1 of the mop head 100 of the present embodiment, shown with the top surface engaged by the mop base B of fig. 1.

As shown in fig. 4a, the narrow connection portion 15 includes a first protrusion set 151, a first through-hole portion 152, a second protrusion set 153, and a second through-hole portion 154, and the narrow connection portion 15 is annularly disposed on the sidewall 14 in the order of the first protrusion set 151, the first through-hole portion 152, the second protrusion set 153, and the second through-hole portion 154. As shown in fig. 4a, the first and second cam groups 151 and 153 extend from the side wall 14 toward the longitudinal axis of the joining recess 11 by injection molding. The first penetration portion 152 is a penetration space between the ring side 151a of the first cam group 151 and the ring side 153b of the second cam group 153, and is adjacent to both the ring side 151a of the first cam group 151 and the ring side 153a of the second cam group 153. The second penetration portion 154 is a penetration space between the other ring side 151b of the first cam set 151 and the other ring side 153b of the second cam set 153, and is adjacent to both the other ring side 151b of the first cam set 151 and the other ring side 153b of the second cam set 153. The first penetration portion 152 faces the second penetration portion 154 in the radial direction of the engagement recess 11. An accommodation recess 16 is formed between the closed upper top 13 and the narrowed portion 15. Each engaging recess 11 having the lower opening 12, the closed upper ceiling 13, the side walls 14 and the narrowed portion 15 is formed in such a manner that, as shown in fig. 8, two stencils M are abutted, one having a projection M1 and the other having a corresponding recess (not shown) corresponding to the projection M1, the corresponding recesses serve to form the accommodation recesses 16, and the abutment of the two stencils M is achieved by accommodating the projection M1 of one stencil into the corresponding recess of the other stencil, and is injection molded between the two stencils to form a first protrusion set 151 and a second protrusion set 153, after injection molding, the projection M1 is pulled back from the corresponding receiving recess 16, that is, the projection M1 is pressed against the first projection group 151 and the second projection group 153 and passes through the first projection group 151 and the second projection group 153 to be forcibly released from the engaging recess 11.

As shown in fig. 4b, in the mop head 100 according to the embodiment of the present invention, the first penetration width W1 of the first penetration portion 152 on the side wall 14 and the second penetration width W2 of the second penetration portion 154 on the side wall 14 are both greater than the penetration widths W3 and W4 between the angle protrusions 151c and 153c of the first protrusion set 151 and the second protrusion set 153, respectively.

As shown in fig. 4a, 4b and 6, the first penetration width W1 is equal to the second penetration width W2. The transverse width W of the straight punch P is larger than the longitudinal thickness T and is in a straight shape, and the first penetrating width W1 and the second penetrating width W2 are equal to or larger than the longitudinal thickness T of the applicable straight punch P. The diameter of the side wall 14 is equal to or greater than the transverse width W of the in-line punch P.

As shown in fig. 4a, 4b and 6, in the mop head 100 according to the embodiment of the present invention, the first protrusion set 151 is four adjacent angular protrusions 151c, each of the angular protrusions 151c is adjacent to and annularly provided on the side wall 14, and the second protrusion set 153 is four adjacent angular protrusions 153c, each of the angular protrusions 153c is adjacent to and annularly provided on the side wall 14. Each of the angular protrusions 151c, 153c is formed at an acute angle and easily penetrates the cleaning member 2 to make the cleaning member 2 less likely to be loosened. In other embodiments, the first and second cam sets 151 and 153 have at least two angular protrusions 151c and 153c, respectively.

As shown in fig. 4a and 4b, in the mop head 100 according to the embodiment of the present invention, the first through-hollow 152 is parallel to the second through-hollow 154 on both sides of the lower opening 12 in the radial direction. As shown in fig. 5, the lower opening 12 has a buffer distance between the first protrusion set 151 and the second protrusion set 153 in the axial direction of the lower opening 12, so that when the protrusion M1 is pulled back from the receiving recess 16, the first protrusion set 151 and the second protrusion set 153 will not break the sidewall 14.

As shown in fig. 2, 4a, 4b and 5, in the mop head 100 according to the embodiment of the present invention, the first protrusion set 151 is a continuous protrusion having a continuous thickness in the radial direction of the lower opening 12, and the second protrusion set is a continuous protrusion having a continuous thickness in the radial direction of the lower opening. In detail, the continuous protrusions (i.e., the angular protrusions 151c) of the first protrusion set 151 and the continuous protrusions (i.e., the angular protrusions 153c) of the second protrusion set 153 are tapered in thickness from the sidewall 14 toward the center. In addition, the inner wall surface 151d of the first cam set 151 and the inner wall surface 153d of the second cam set 153 are inclined from the sidewall 14 toward the center toward the lower opening 12, so as to facilitate forced demolding of the mold M.

As shown in fig. 6 and 7, the cleaning member 2 has the punching-in portion 21, the tucking-in portion 22, and the non-tucking-in portion 23, and the punching-in portion 21 and the tucking-in portion 22 are tucked into the accommodation recess 16 by the first hollow portion 152 and the second hollow portion 154 by the first punch P abutting against the punching-in portion 21 and the first punch P passing through the first hollow portion 152 and the second hollow portion 154 with the lateral width W and the longitudinal thickness T, and thereafter the first punch P is reversely moved back to pass through the first hollow portion 152 and the second hollow portion 154 and is extracted from the engagement recess 11.

Fig. 6 and 7 only schematically show the fabric strips in the cleaning member 2. The first and second cam groups 151 and 153 of the narrow-width part 15 sandwich the cleaning member 2. Wherein, the bending part of the cloth strip is a punching part 21; the part of the cloth strip in the accommodating concave part 16 is a plug-in part 22; the part of the cloth strip exposed out of the accommodating concave part 16 is an un-inserted part 23 for mopping and cleaning. The invention is not limited thereto, and one or more cloth strips can be inserted into a single accommodating concave part 16.

The mop head frame 1 is coated by a mold M and injection molded. As shown in fig. 7, a mold M for forming the mop head 100 of the present invention is shown. The mold M has a plurality of protrusions M1, and a plurality of engaging recesses 11 are formed on the lower surface 17 of the mop head frame 1 by the plurality of protrusions M1. The recessed holes at the bottom end of the protrusion M1 are shaped to correspond to the angular protrusions 151c of the first protrusion set 151 and the angular protrusions 153c of the second protrusion set 153.

In this specification, the invention has been described with reference to specific embodiments thereof. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.