TWI734643B - Building-block type pencil sharpener - Google Patents

Abstract

A building-block type pencil sharpener includes a shell, a clamping structure, an elastic part, a core structure, and a rotary handle. The shell has a top wall, a front wall, and a back wall. The top wall has two top through-holes. The front wall has a front through-hole for a head of a pencil to pass through. The back wall has a back through-hole. The clamping structure includes an upper horizontal bar, two vertical bars, a lower horizontal bar, and a middle horizontal bar. The upper horizontal bar is disposed outside the shell and its two ends are assembly connected to one end of each of the two vertical bars respectively. The two vertical bars are disposed through the two top through-holes respectively. The lower horizontal bar is disposed inside the shell and its two ends are assembly connected to the other end of each of the two vertical bars respectively. The middle horizontal bar is assembly connected inside the shell and is disposed above the lower horizontal bar. The elastic part is connected to the middle horizontal bar and the lower horizontal bar. A front end of the core structure is provided with a working cavity for the head of the pencil to insert. A back end of the core structure is provided with a connecting bar. A cutting tool is disposed beside the working cavity. The connecting bar is disposed through the back through-hole. The rotary handle is disposed outside the shell and is assembly connected to the connecting bar.

Description

Building block pencil sharpener

The invention relates to a building block device, and in particular to a building block type pencil sharpener.

The building block device is composed of at least one type of bricks. At present, the building block devices on the market are usually combined into building block devices that are both playful and ornamental, such as people, animals, vehicles, and buildings, but are rarely combined into building block devices that are both playful and practical, such as stationery.

The purpose of the present invention is to provide a building block type pencil sharpener, which combines multiple types of building blocks into a stationery type building block device, which is both playful and practical.

In order to achieve the above objective, the present invention proposes a building block type pencil sharpener, which is composed of multiple types of building blocks. The building block type pencil sharpener includes a housing, a clamping structure, an elastic piece, a movement structure and a rotating handle. The casing has a top wall, a front wall and a rear wall. The top wall has two top perforations. The front wall has a front perforation for the pencil head to pass through, and the rear wall has a rear perforation. The clamping structure includes an upper cross bar, two straight bars, a lower cross bar and a middle cross bar. The upper cross bar is located outside the shell and its two ends are connected to one end of the two straight bars. The lower cross bar is located in the shell and its two ends are respectively assembled to the other end of the two straight rods, and the middle cross bar is assembled in the shell and located above the lower cross bar. The elastic piece is connected to the middle cross bar and the lower cross bar. The front end of the movement structure is provided with a working cavity for the insertion of the pencil head, the rear end of the movement structure is provided with a connecting rod, a cutter is arranged beside the working cavity, and the connecting rod is penetrated through the rear perforation. The rotating handle is located outside the shell and assembled with the connecting rod.

In an embodiment of the present invention, the building block type pencil sharpener further includes an auxiliary structure. The auxiliary structure is assembled in the casing and located between the front perforation and the front end of the movement structure. The auxiliary structure has auxiliary perforations for the pencil head to pass through.

In an embodiment of the present invention, a movement gear is provided on the outer periphery of the rear end of the movement structure. The building block pencil sharpener also includes two gears. The two gears are connected to the rear wall of the casing and are located on both sides of the movement gear, and the two gears respectively mesh with the movement gear.

In an embodiment of the present invention, two cross bars are assembled on both sides of the auxiliary structure, and the two cross bars are respectively assembled on the inner surfaces of the two side walls of the housing.

In an embodiment of the present invention, the auxiliary structure is provided with an engaging portion on the upper or lower side, and the auxiliary structure is assembled to the corresponding engaging portions on the inner surfaces of the two side walls of the housing through the engaging portion.

In an embodiment of the present invention, the front end of the movement structure is assembled with the auxiliary perforation.

In an embodiment of the present invention, the auxiliary structure is provided with an engaging portion on the upper or lower side, and the auxiliary structure is assembled to the corresponding engaging portions on the inner surfaces of the two side walls of the housing through the engaging portion.

In an embodiment of the present invention, the front end of the movement structure is assembled with the auxiliary perforation.

In an embodiment of the present invention, the building block type pencil sharpener further includes a scrap box. The front wall has a front opening for the crumb box to pass through and to be placed in the shell.

In an embodiment of the present invention, the building block type pencil sharpener further includes at least one friction member. The friction member is arranged on the lower crossbar, or on the lower crossbar and the middle crossbar.

According to the building block type pencil sharpener proposed in the embodiment of the present invention, the pencil head passing through the front perforation is fixed by the clamping structure composed of the upper cross bar, the two straight bars, the lower cross bar and the middle cross bar and the elastic member. Then turn the handle to drive the core structure to sharpen the pencil tip inserted into its working cavity. In addition, the pencil tip that passes through the front perforation can be more stably fixed through the auxiliary structure and/or friction member, which is both playful and practical sex.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are described in detail below in conjunction with the accompanying drawings.

In the following embodiments, the same or similar element symbols represent the same or similar elements. In addition, the directional terms mentioned in the following embodiments, such as: up, down, left, right, front, or back, etc., are only the directions with reference to the attached drawings. Therefore, the directional terms used are used for explanation. It is not intended to limit the invention.

Please refer to FIGS. 1 and 2 at the same time. FIGS. 1 and 2 are schematic diagrams of the building block pencil sharpener 1 from different perspectives in an embodiment of the present invention. The building block pencil sharpener 1 includes a housing 10. The housing 10 has a top wall 11, a front wall 12, a rear wall 13, two side walls 14 and a bottom wall 15. The top wall 11, the front wall 12, the rear wall 13, the two side walls 14 and the bottom wall 15 jointly form an internal space 10 a, and the internal space 10 a is for the components to be contained in the housing 10. The top wall 11 has two top perforations 111, the front wall 12 has a front perforation 121 for the pencil head to pass through, the back wall 13 has a rear perforation 131, each side wall 14 has a plurality of side perforations 141, and the positions of the side perforations 141 of the two side walls 14 are mutually opposite. correspond. The top through hole 111, the front through hole 121, the front opening 122, the back through hole 131, and the side through hole 141 are all connected to the internal space 10a.

Please refer to FIGS. 3 to 5 at the same time. FIG. 3 is a partial exploded view of the building block type pencil sharpener 1 shown in FIG. 1, FIG. 4 is an exploded view of the clamping structure 20 of the building block type pencil sharpener 1, and FIG. Schematic diagram of the fixed structure of the structure 20. The building block pencil sharpener 1 further includes a clamping structure 20 and an elastic member 30. The clamping structure 20 includes an upper cross bar 21, two straight bars 22 a and 22 b, a lower cross bar 23 and a middle cross bar 24. The upper cross bar 21 is located outside the housing 10 and its two ends are respectively assembled to one end of the two straight bars 22a and 22b. The two straight rods 22a and 22b are respectively penetrated through the two top through holes 111 (as shown in FIG. 1). The lower cross bar 23 is located in the housing 10 and its two ends are respectively assembled to the other ends of the two straight bars 22a and 22b. The middle cross bar 24 is assembled in the housing 10 and located above the lower cross bar 23. The elastic member 30 is connected to the middle cross bar 24 and the lower cross bar 23.

In this embodiment, the clamping structure 20 further includes two sets of connecting pieces 25a and 25b, two sets of connecting pieces 26a and 26b, two sets of connecting pieces 27a and 27b, two rods 28a and 28b, and two sets of connecting pieces 29a and 29b. And a plurality of rods 28a' and 28b'. One end of the upper cross bar 21 is assembled to one end of the straight bar 22a through a connecting piece 25a, and the other end of the upper cross bar 21 is assembled to one end of the straight bar 22b through a connecting piece 25b. One end of the lower cross bar 23 is assembled to the other end of the straight bar 22a through the assembly member 26a, and the other end of the lower cross bar 23 is assembled to the other end of the straight bar 22b through the assembly member 26b. The two ends of the middle cross bar 24 are respectively assembled to two sets of connecting pieces 27a and 27b, the connecting piece 27a is assembled to the connecting piece 29a through the rod 28a, and the connecting piece 29a is inserted into the side hole 141 through the rod 28a' The assembling member 27b is assembled to the assembling member 29b through the rod 28b, and the assembling member 29b is inserted into the side hole 141 through the rod 28b' to be assembled to the housing. On the other side wall 14 inside 10, the middle cross bar 24 is assembled in the housing 10. In addition, the straight rod 22a penetrates through the top hole 111 and the assembly member 27a, and the straight rod 22b penetrates through the top hole 111 and the assembly member 27b, so that the middle cross rod 24 is located above the lower cross rod 23.

Please refer to FIGS. 3 and 6 at the same time. FIG. 6 is a schematic diagram of the movement structure 40 of the building block pencil sharpener 1. The building block pencil sharpener 1 further includes a movement structure 40 and a rotating handle 50. The movement structure 40 is located in the housing 10. The movement structure 40 has a front end 401 and a rear end 402. The front end 401 of the movement structure 40 is provided with a working cavity 41 for the insertion of the pencil head, the opening of the working cavity 41 corresponds to the front perforation 121, and a cutter 42 is provided beside the working cavity 41. The rear end 402 of the movement structure 40 is provided with a connecting rod 43, and the connecting rod 43 penetrates the rear through hole 131. The rotating handle 50 is located outside the housing 10 and assembled to the connecting rod 43.

In this embodiment, the building block pencil sharpener 1 may further include two gears 70, and a movement gear 44 may also be provided on the outer periphery of the rear end 402 of the movement structure 40. The two gears 70 are assembled on the rear wall of the casing 10 and located on both sides of the movement gear 44, and the two gears 70 mesh with the movement gear 44 respectively. Through the movement gear 44 and the two gears 70, when the rotary handle 50 is rotated to drive the movement structure 40, the movement structure 40 can rotate more stably to sharpen the pencil.

Please refer to FIGS. 3 and 7 at the same time. FIG. 7 is a schematic diagram of the auxiliary structure 60 of the building block type pencil sharpener 1. The building block pencil sharpener 1 further includes an auxiliary structure 60. The auxiliary structure 60 is assembled in the housing 10 and is located between the front through hole 121 and the front end 401 of the movement structure 40. The auxiliary structure 60 has an auxiliary perforation 61 for the pencil head to pass through. In this embodiment, engaging portions 62 are provided on both sides of the lower side of the auxiliary structure 60. The auxiliary structure 60 is assembled to the corresponding engaging portions on the inner surfaces of the two side walls 14 of the housing 10 through the engaging portions 62. However, this embodiment is not intended to limit the present invention. For example, the auxiliary structure can be changed to an upper side with an engaging portion, or both upper and lower sides are provided with an engaging portion, and such an engaging portion is assembled in the two side walls of the housing The engaging part corresponding to the surface.

When using the building block type pencil sharpener 1, first, press the upper cross bar 21 to move downwards. The upper cross bar 21 drives the lower cross bar 23 to move downward through the two straight bars 22a and 22b, and the lower cross bar 23 moves downwards. Move to a position lower than the front perforation 121, at this time the elastic member 30 will be stretched to generate elasticity; then, the pencil tip is passed through the front perforation 121, the auxiliary perforation 61 and extended into the working cavity 41, and then the upper cross bar 21 is released , The elastic force generated by the elongated elastic member 30 pulls the lower cross bar 23 to move upward until the lower cross bar 23 abuts the pencil shaft; then, the rotary handle 50 is rotated to drive the core structure 40 and its working cavity 41 to rotate, so that The cutter 42 next to the working cavity 41 cuts the pencil tip inserted into the working cavity 41; finally, press the upper bar 21 to drive the lower bar 23 to move downward, then take out the sharpened pencil and release the upper bar 21 , The elastic force generated by the elongated elastic member 30 pulls the lower crossbar 23 to move upward until the lower crossbar 23 returns to the initial position.

Please refer to FIGS. 3 and 8 at the same time. FIG. 8 is a schematic diagram of a movement structure 40' and an auxiliary structure 60' according to another embodiment of the present invention. The movement structure 40' is located in the housing 10. The movement structure 40' has a front end 401' and a rear end 402'. The front end 401' of the movement structure 40' is provided with a working cavity 41' for inserting a pencil tip, the opening of the working cavity 41' corresponds to the front perforation 121, and a cutter 42' is provided next to the working cavity 41'. The rear end 402' of the movement structure 40' is provided with a connecting rod 43', and the connecting rod 43' penetrates the rear perforation 131. The rotating handle 50 is located outside the housing 10 and assembled to the connecting rod 43'. The front end 401' of the movement structure 40' is also provided with a pivot part 45'. The auxiliary structure 60' has auxiliary perforations 61', and two cross bars 63' are assembled on both sides of the auxiliary structure 60'. The assembly is connected to the inner surface of the two side walls 14 of the housing 10. The pivot part 45' of the front end 401' of the movement structure 40' is rotatably assembled to the auxiliary through hole 61'. The inner contour of the auxiliary perforation 61' and the outer contour of the pivoting portion 45' can correspond to each other, so that the auxiliary perforation 61' provides the limiting effect of the pivoting portion 45', so that the movement structure 40 can rotate more stably to sharpen the pencil head.

Please refer to FIG. 1 again, the building block type pencil sharpener 1 further includes a dust collecting box 80. The front wall 12 of the housing 10 also has a front opening 122 for the debris box 80 to pass through and be placed in the housing 10.

Please refer to FIG. 5 again, the building block type pencil sharpener 1 may further include a friction member 90, and the friction member 90 is provided on the lower cross bar 23. When using the building block pencil sharpener 1, pass the pencil head through the front perforation 121, the auxiliary perforation 61 and extend into the working cavity 41, and then release the upper cross bar 21, and the lower cross bar is pulled by the elastic force generated by the elongated elastic member 30. The rod 23 moves upward until the lower crossbar 23 abuts against the pencil rod. At this time, the friction member 90 provided on the lower crossbar 23 can provide friction to prevent the pencil rod from rotating easily, and make the cutter 42 next to the rotating working cavity 41 The pencil tip inserted into the working cavity 41 can be cut better. However, this embodiment is not intended to limit the present invention. For example, the friction member can be changed to be provided on the lower cross bar and the middle cross bar.

In summary, according to the building block pencil sharpener proposed in the embodiment of the present invention, the clamping structure composed of the upper cross bar, the two straight rods, the lower cross bar and the middle cross bar is combined with the elastic member to fix the penetrating through the front For the perforated pencil head, turn the handle to drive the core structure to sharpen the pencil head inserted into its working cavity. In addition, auxiliary structures and/or friction parts can be used to more stably fix the pencil head passing through the front perforation. Both playful and practical.

Although the present invention has been disclosed in preferred embodiments as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be determined by the scope of the attached patent application.

1: Building block type pencil sharpener 10: Shell 10a: Internal space 11: top wall 111: top perforation 12: front wall 121: front perforation 122: front opening 13: back wall 131: rear perforation 14: side wall 141: Side Piercing 15: bottom wall 20: clamping structure 21: Upper crossbar 22a, 22b: straight 23: Lower crossbar 24: Middle crossbar 25a, 25b, 26a, 26b, 27a, 27b, 29a, 29b: assembly 28a, 28b, 28a’, 28b’: rods 30: Elastic parts 40, 40’: Movement structure 401, 401’: Front end 402, 402’: backend 41, 41’: working cavity 42, 42’: Tool 43, 43’: connecting rod 44: Movement Gear 45’: Clamping part 50: Rotary handle 60, 60’: Auxiliary structure 61, 61’: auxiliary perforation 62: card joint 63’: Crossbar 70: Gear 80: crumb box 90: friction parts

FIG. 1 is a schematic diagram of a building block type pencil sharpener according to an embodiment of the present invention; 2 is a schematic diagram of the building block type pencil sharpener in another view angle according to an embodiment of the present invention; 3 is a partial exploded schematic diagram of a building block type pencil sharpener according to an embodiment of the present invention; 4 is an exploded schematic diagram of the clamping structure of the building block type pencil sharpener according to an embodiment of the present invention; 5 is a schematic diagram of a fixing structure of a clamping structure according to an embodiment of the present invention; 6 is a schematic diagram of the core structure of the building block type pencil sharpener according to an embodiment of the present invention; FIG. 7 is a schematic diagram of the auxiliary structure of the building block type pencil sharpener according to an embodiment of the present invention; and 8 is a schematic diagram of the core structure and auxiliary structure of the building block pencil sharpener according to another embodiment of the present invention.

1: Building block type pencil sharpener

10: Shell

121: front perforation

122: front opening

131: rear perforation

141: Side Piercing

20: clamping structure

30: Elastic parts

50: Rotary handle

60: auxiliary structure

61: auxiliary perforation

70: Gear

Claims (10)

A building block type pencil sharpener is composed of multiple types of building blocks. The building block type pencil sharpener includes: A housing with a top wall, a front wall and a rear wall, the top wall has two top perforations, the front wall has a front perforation for the pencil head to pass through, and the rear wall has a rear perforation; A clamping structure includes an upper cross bar, two straight bars, a lower cross bar and a middle cross bar. Respectively pass through the two top through holes, the lower cross bar is located in the housing and two ends are respectively assembled to the other end of the two straight rods, the middle cross bar is assembled in the housing and is located above the lower cross bar; An elastic piece connected to the middle cross bar and the lower cross bar; A movement structure, with a working cavity at the front end for inserting the pencil tip, a connecting rod at the back end, a cutter beside the working cavity, and the connecting rod passing through the rear perforation; and A rotating handle is located outside the shell and assembled with the connecting rod. For example, the building block pencil sharpener of claim 1, further comprising an auxiliary structure assembled in the housing and located between the front perforation and the front end of the movement structure, the auxiliary structure having an auxiliary perforation for pencils Head through. For example, the building block pencil sharpener of claim 2, wherein a movement gear is provided on the outer periphery of the rear end of the movement structure, and the building block pencil sharpener further includes two gears connected to the rear wall of the housing and Located on both sides of the movement gear, the two gears respectively mesh with the movement gear. For example, the building block pencil sharpener of claim 2, wherein two cross bars are assembled on both sides of the auxiliary structure, and the two cross bars are respectively assembled on the inner surfaces of the two side walls of the housing. For example, the building block type pencil sharpener of claim 4, wherein the auxiliary structure is provided with an engaging portion on the upper or lower side, and the auxiliary structure is assembled to the corresponding engaging portions on the inner surfaces of the two side walls of the casing through the engaging portion. For example, the building block pencil sharpener of claim 4 or 5, wherein the front end of the movement structure is assembled with the auxiliary perforation. For example, the building block type pencil sharpener of claim 2, wherein the auxiliary structure is provided with an engaging portion on the upper side or the lower side, and the auxiliary structure is assembled to the corresponding engaging portions on the inner surfaces of the two side walls of the casing through the engaging portion. For example, the building block pencil sharpener of claim 7, wherein the front end of the movement structure is assembled with the auxiliary perforation. For example, the building block pencil sharpener of claim 1, further comprising a scrap box, wherein the front wall has a front opening for the scrap box to pass through and be placed in the casing. For example, the building block pencil sharpener of claim 1, further comprising at least one friction member, and the at least one friction member is provided on the lower crossbar, or on the lower crossbar and the middle crossbar.

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