CN219405968U - Pencil feeding linkage mechanism of pencil sharpener - Google Patents

Abstract

The pencil sharpener pencil feeding linkage mechanism comprises a mounting frame 1, a first pencil feeding wheel 4 and a second pencil feeding wheel 5 which are correspondingly arranged, and a first swing arm 2 and a second swing arm 3 which are correspondingly arranged, wherein the first swing arm 2 and the second swing arm 3 are both rotatably connected to the mounting frame 1; the first swing arm 2 is provided with a first linkage part 21, the second swing arm 3 is provided with a second linkage part 31, and the first linkage part 21 is movably hinged or meshed with the second linkage part 31; the first pen feeding wheel 4 is rotatably connected to the first swing arm 2, the second pen feeding wheel 5 is rotatably connected to the second swing arm 3, and the elastic piece 8 is used for forcing the first pen feeding wheel 4 and the second pen feeding wheel 5 to be close to each other. According to the pencil sharpening mechanism, the first pencil feeding wheel and the second pencil feeding wheel are arranged, and the first swing arm and the second swing arm which are mutually linked are matched, so that the synchronous rate of the two pencil feeding wheels is higher, and the concentricity of the pencil point and the pencil holder in the pencil sharpening process is improved.

Description

Pencil feeding linkage mechanism of pencil sharpener

Technical Field

The utility model relates to the field of pencil sharpening stationery, in particular to a pencil feeding linkage mechanism of a pencil sharpener.

Background

The pencil sharpener is used as common stationery for children, and the diameters of pencil holders on the market are different due to different purposes or different target customer groups, so that most of the pencil sharpeners on the market are only applicable to pencils with specific diameters, and therefore, the pencil sharpeners applicable to pencils with different diameters are needed.

Disclosure of Invention

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a pencil sharpener advances a link gear, includes mounting bracket (1), corresponds first pencil wheel (4) and second pencil wheel (5) that advance that set up, still includes first swing arm (2) and second swing arm (3) that correspond the setting, first swing arm (2) with second swing arm (3) all rotatable connect in mounting bracket (1); the first swing arm (2) is provided with a first linkage part (21), the second swing arm (3) is provided with a second linkage part (31), and the first linkage part (21) is movably hinged or meshed with the second linkage part (31); the first pen feeding wheel (4) is rotatably connected to the first swing arm (2), and the second pen feeding wheel (5) is rotatably connected to the second swing arm (3).

Further, the first pen feeding wheel (4) can be connected to the first swing arm (2) in a sliding way; the second pen feeding wheel (5) can be further connected to the second swing arm (3) in a sliding mode.

Further, a second chute (11) is arranged on the mounting frame (1); the first pen feeding wheel (4) penetrates through the second sliding groove (11) to be connected with the first swing arm (2), the second pen feeding wheel (5) penetrates through the second sliding groove (11) to be connected with the second swing arm (3), or the first swing arm (2) penetrates through the second sliding groove (11) to be connected with the first pen feeding wheel (4), and the second swing arm (3) penetrates through the second sliding groove (11) to be connected with the second pen feeding wheel (5).

Further, a rotating shaft (6) is respectively arranged on the first pen feeding wheel (4) and the second pen feeding wheel (5); a first chute (231) is arranged on each of the first swing arm (2) and the second swing arm (3); the rotating shaft (6) sequentially penetrates through the second sliding groove (11) and the first sliding groove (231).

Further, the device also comprises an elastic piece (8); the two ends of the elastic piece (8) are respectively connected with the rotating shaft (6) of the first pen feeding wheel (4) and the rotating shaft (6) of the second pen feeding wheel (5).

Further, the first linkage part (21) is hinged to the second linkage part (31), and the first swing arm (2) can rotate around the second linkage part (31).

Further, the first swing arm (2) and the second swing arm (3) are L-shaped.

Further, a first avoidance step (22) is provided on the first linkage part (21); a second avoidance step (32) is provided on the second linkage part (31).

Further, the second sliding groove (11) is an arc groove distributed obliquely upwards.

Further, the automatic lead feeding gear assembly is mounted on the mounting frame (1); the automatic lead feeding gear assembly comprises a turbine (71), a first terminal wheel (74) connected with the first pen feeding wheel (4), a second terminal wheel (75) connected with the second pen feeding wheel (5), a first synchronous wheel (72) connected with the first terminal wheel (74) and a second synchronous wheel (73) connected with the second terminal wheel (75);

the first synchronous wheel (72) and the second synchronous wheel (73) are respectively provided with synchronous teeth (76), and the synchronous teeth (76) of the first synchronous wheel (72) and the synchronous teeth (76) of the second synchronous wheel (73) are respectively meshed with the turbine (71).

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a pencil sharpener pencil feeding linkage mechanism according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of an assembly structure of two swing arms in the structure of fig. 1.

Fig. 3 is a schematic structural view of two swing arms in fig. 1.

Fig. 4 is a schematic diagram of an exploded structure of the structure of fig. 1.

Reference numerals illustrate:

1. a mounting frame; 2. a first swing arm; 3. a second swing arm; 4. a first pen-feeding wheel;

5. a second pen-feeding wheel; 6. a rotating shaft; 8. an elastic member;

11. a second chute;

21. a first linkage part; 22. the first avoidance step; 231. a first chute;

31. a second linkage part; 32. a second avoidance step;

71. a turbine; 72. a first synchronizing wheel; 73. a second synchronizing wheel; 74. a first terminal wheel; 75. a second terminal wheel; 76. and synchronizing teeth.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model and the accompanying drawings. It should be noted that the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" is at least two unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The following describes specific embodiments of the present utility model with reference to the drawings.

Examples

As shown in fig. 1-4, a preferred embodiment of a pencil sharpener pencil feeding linkage mechanism provided by the utility model comprises a mounting frame 1, a first pencil feeding wheel 4 and a second pencil feeding wheel 5 which are correspondingly arranged, and a first swing arm 2 and a second swing arm 3 which are correspondingly arranged, wherein the first swing arm 2 and the second swing arm 3 are both rotatably connected with the mounting frame 1; the first swing arm 2 is provided with a first linkage part 21, the second swing arm 3 is provided with a second linkage part 31, and at least part of the first linkage part 21 is positioned in the movable stroke of the second linkage part 31; the first pen feeding wheel 4 is rotatably connected to the first swing arm 2, and the second pen feeding wheel 5 is rotatably connected to the second swing arm 3. Through setting up first advance the pen wheel 4, second advance the pen wheel 5, cooperation first swing arm 2 and the second swing arm 3 of linking each other, when the pen is in first advance between pen wheel 4 and the second advance pen wheel 5, the pen is propped up and is driven two and advance the pen wheel rotation, reduce the frictional force that the pen is got into, simultaneously, because the existence of first linkage part 21 and second linkage part 31 for the pen is propped up and is extruded any one and advance the pen wheel, the remaining one advances the pen wheel and all can move correspondingly, thereby make two advance the pen wheel synchronous operation, further guaranteed the nib in the sharpening in-process and the concentricity of pen-holder.

In this embodiment, the first linkage part 21 is preferably sleeved on the second linkage part 31, and the first swing arm 2 can rotate around the second linkage part 31. In other embodiments, the ends of the first linkage part 21 and the second linkage part 31 are respectively provided with linkage teeth, and the linkage of the first swing arm 2 and the second swing arm 3 is realized through a meshing fit mode.

Further, the first pen feeding wheel 4 is also connected with the first swing arm 2 in a sliding way; the second pen feeding wheel 5 is also slidably connected to the second swing arm 3.

Specifically, a second chute 11 is provided on the mounting frame 1; the first pen feeding wheel 4 passes through the second sliding groove 11 to be connected with the first swing arm 2, the second pen feeding wheel 5 passes through the second sliding groove 11 to be connected with the second swing arm 3, or the first swing arm 2 passes through the second sliding groove 11 to be connected with the first pen feeding wheel 4, and the second swing arm 3 passes through the second sliding groove 11 to be connected with the second pen feeding wheel 5. In this embodiment, the first pen feeding wheel 4 and the second pen feeding wheel 5 are respectively provided with a rotating shaft 6; a first chute 231 is arranged on each of the first swing arm 2 and the second swing arm 3; the second sliding groove 11 is provided with two groups corresponding to the first swing arm 2 and the second swing arm 3 respectively; the rotating shaft 6 sequentially passes through the second chute 11 and the first chute 231; the first sliding groove 231 and the second sliding groove 11 realize that the first pen feeding wheel 4 and the second pen feeding wheel 5 can slide and adjust positions in two direction dimensions. In accordance with the arrangement that the first swing arm 2 can rotate around the second linkage part 31, the second sliding groove 11 is an arc groove distributed obliquely upwards, so that the first pen feeding wheel 4 and the second pen feeding wheel 5 can slide conveniently, and meanwhile, sliding guiding is provided, and the two pen feeding wheels are guided to move along the same track. In another embodiment, the first swing arm 2 and the second swing arm 3 are respectively slidably provided with a rotating shaft 6, the first pen feeding wheel 4 and the second pen feeding wheel 5 are provided with shaft grooves matched with the rotating shaft 6, the rotating shaft 6 penetrates through the second sliding groove 11 and is inserted into the shaft grooves, rotatable arrangement of the pen feeding wheels is achieved, and the second sliding groove 11 and the sliding arrangement on the swing arms form two-dimensional moving guide.

Further, an elastic member 8, in this embodiment, a tension spring is preferably arranged between the two rotating shafts 6 of the first pen feeding wheel 4 and the second pen feeding wheel 5, so as to ensure effective clamping of the first pen feeding wheel 4 and the second pen feeding wheel 5 on the pen, and facilitate the suction or withdrawal of the pen feeding wheel to push the pen; in other embodiments, the elastic member 8 may be a torsion spring, and two elastic arms of the torsion spring are respectively connected to two rotating shafts.

In this embodiment, the first swing arm 2 and the second swing arm 3 are preferably flat plates with an "L" shape. The connecting parts of the two L-shaped extension arms are connected with the mounting frame 1 through the rotating shaft 6, so that the swing arm can rotate. The first linkage part 21 is disposed on an extension arm of the first swing arm 2 near the second swing arm 3, and the second linkage part 31 is disposed on an extension arm of the second swing arm 3 near the first swing arm 2.

Further, a first escape step 22 is provided in the first linkage part 21; the second linkage 31 is provided with a second escape step 32. The two avoidance steps provide partial space for the linkage of the first swing arm 2 and the second swing arm 3, and the size of the mechanism can be reduced, so that the thickness of the first swing arm 2 and the second swing arm 3 after linkage installation is the same as that of a single swing arm, the occupied space of a finished product of the final pencil sharpener is reduced, and the pencil sharpener is more convenient to carry.

Further, in order to realize automatic rolling-in of the pen after the pen is inserted, the pen further comprises an automatic lead feeding gear assembly arranged on the mounting frame 1. Specifically, the first pen feeding wheel 4 and the second pen feeding wheel 5 are rubber wheels, or the surfaces of the first pen feeding wheel and the second pen feeding wheel are covered with rubber layers. The automatic lead feeding gear assembly comprises a turbine 71, a first terminal wheel 74 coaxially and synchronously connected with the first pen feeding wheel 4, a second terminal wheel 75 coaxially and synchronously connected with the second pen feeding wheel 5, a first synchronous wheel 72 connected with the first terminal wheel 74, and a second synchronous wheel 73 connected with the second terminal wheel 75; the first synchronizing wheel 72 and the second synchronizing wheel 73 are respectively provided with synchronizing teeth 76, and the synchronizing teeth 76 of the first synchronizing wheel 72 and the second synchronizing wheel 73 are respectively meshed with output teeth of the turbine 71; after assembly, the combination of the first pen feeding wheel 4, the first terminal wheel 74 and the first synchronizing wheel 72 and the combination of the second pen feeding wheel 5, the second terminal wheel 75 and the second synchronizing wheel 73 are distributed in mirror symmetry with the rotation shaft 6 of the turbine 71 as the center, so that the thrust of the two pen feeding wheels to the pen support is in the same direction in the pen feeding or withdrawing process. The turbine 71 is rotatably provided on the mounting frame 1, and an input end of the turbine 71 is connected to a cutter structure of the pencil sharpener, or to a transmission mechanism.

The embodiment also provides a pencil sharpener, which comprises a shell, a sharpener mechanism, a power mechanism and a transmission mechanism, wherein the sharpener mechanism, the power mechanism and the transmission mechanism are arranged in the shell; the input end of the transmission mechanism is connected with the power mechanism, and the output end of the transmission mechanism is connected with the cutter mechanism. The power mechanism is preferably a motor, and can be realized by a rotary table with a pull rope. The transmission mechanism adopts common gear sets for transmission, and in the present case, the power mechanism, the transmission mechanism and the cutter mechanism all adopt the prior art, and are not described herein.

According to the linkage pen feeding mechanism of the pencil sharpening mechanism, the first pen feeding wheel and the second pen feeding wheel are arranged, and the first swing arm and the second swing arm which are mutually linked are matched, so that the synchronous rate of the two pen feeding wheels in operation is higher, and the concentricity of a pen point and a pen holder in the pencil sharpening process is ensured.

The above examples illustrate only one embodiment of the utility model, which is described in more detail and is not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a pencil sharpener advances a link gear, includes mounting bracket (1), and first advance a wheel (4) and a second advance a wheel (5) that correspond the setting, its characterized in that still includes elastic component (8), first swing arm (2) and second swing arm (3) that correspond the setting, first swing arm (2) with second swing arm (3) all rotatable connect in mounting bracket (1);

the first swing arm (2) is provided with a first linkage part (21), the second swing arm (3) is provided with a second linkage part (31), and the first linkage part (21) is movably hinged or meshed with the second linkage part (31);

the first pen feeding wheel (4) is rotatably connected to the first swing arm (2), and the second pen feeding wheel (5) is rotatably connected to the second swing arm (3);

the elastic piece (8) is used for forcing the first pen inlet wheel (4) and the second pen inlet wheel (5) to be close to each other.

2. The pencil sharpener pencil feeding linkage according to claim 1, wherein the first pencil feeding wheel (4) is further slidably connected to the first swing arm (2);

the second pen feeding wheel (5) can be further connected to the second swing arm (3) in a sliding mode.

3. The pencil sharpener pencil feeding linkage mechanism according to claim 1 or 2, characterized in that a second chute (11) is arranged on the mounting frame (1);

the first pen feeding wheel (4) penetrates through the second sliding groove (11) to be connected with the first swing arm (2), the second pen feeding wheel (5) penetrates through the second sliding groove (11) to be connected with the second swing arm (3), or the first swing arm (2) penetrates through the second sliding groove (11) to be connected with the first pen feeding wheel (4), and the second swing arm (3) penetrates through the second sliding groove (11) to be connected with the second pen feeding wheel (5).

4. A pencil sharpener pencil feeding linkage mechanism according to claim 3, wherein the first pencil feeding wheel (4) and the second pencil feeding wheel (5) are respectively provided with a rotating shaft (6);

a first chute (231) is arranged on each of the first swing arm (2) and the second swing arm (3);

the rotating shaft (6) sequentially penetrates through the second sliding groove (11) and the first sliding groove (231).

5. The pencil sharpener pencil feeding linkage mechanism according to claim 4, wherein two ends of the elastic piece (8) are respectively connected with the rotating shaft (6) of the first pencil feeding wheel (4) and the rotating shaft (6) of the second pencil feeding wheel (5).

6. A pencil sharpener pencil feed linkage according to claim 3, wherein the first linkage (21) is hinged to the second linkage (31), the first swing arm (2) being rotatable about the second linkage (31).

7. The pencil sharpener pencil feeding linkage mechanism according to claim 6, wherein the first swing arm (2) and the second swing arm (3) are L-shaped.

8. The pencil sharpener pencil feeding linkage mechanism according to any one of claims 4-7, wherein the first linkage portion (21) is provided with a first avoidance step (22);

a second avoidance step (32) is provided on the second linkage part (31).

9. The pencil sharpener pencil feeding linkage mechanism according to claim 8, wherein the second runner (11) is an arc-shaped slot distributed obliquely upwards.

10. The pencil sharpener pencil lead-in linkage mechanism of any one of claims 1, 2, 4-7, 9, further comprising an automatic lead-in gear assembly mounted to the mounting frame (1);

the automatic lead feeding gear assembly comprises a turbine (71), a first terminal wheel (74) connected with the first pen feeding wheel (4), a second terminal wheel (75) connected with the second pen feeding wheel (5), a first synchronous wheel (72) connected with the first terminal wheel (74) and a second synchronous wheel (73) connected with the second terminal wheel (75);

the first synchronous wheel (72) and the second synchronous wheel (73) are respectively provided with synchronous teeth (76), and the synchronous teeth (76) of the first synchronous wheel (72) and the synchronous teeth (76) of the second synchronous wheel (73) are respectively meshed with the turbine (71).