CN201169158Y - multipurpose mechanical pencil - Google Patents

Abstract

A multi-purpose mechanical pencil, comprising a pen barrel, a pen cone at the front end of the pen barrel, a core tube with a telescopic assembly installed on the rear end of the core tube, the front end inside the pen barrel is connected to the pen cone, and the pen core slides through it. The pen refill control button for controlling the entry and exit of the pen refill. There are two core guide tubes for the pen refill to slide through in the pen holder. One of the pen refills is a pencil lead and the other is a rubber core. The pen cone that is connected with the front end of the core tube that the rubber core slides through is cylindrical, the length of the core tube is greater than the pen holder, and detachable pen core control buttons are respectively buckled on the parts beyond the pen holder at the two core tube rear ends. The multi-purpose propelling pencil can freely expand and contract the pencil core and the rubber core. When in use, the corresponding pen core control button can be pressed to eject the pencil core or the rubber core; when not in use, the pencil core or rubber core can be retracted into the pen holder. It not only ensures the cleanness of the eraser but is not easy to break, and does not need to carry an additional eraser, it is convenient to use and has a high application prospect.

Description

multipurpose mechanical pencil

technical field

The utility model relates to more writing implements, in particular to a multi-purpose mechanical pencil.

Background technique

At present, the existing technology about the combination of writing utensils and other articles for use has all done very effective efforts to the demand of mechanical pencils, and many excellent technical solutions have also been designed. For example, a small piece of eraser 6 is fixed through a cylindrical groove on the refill control button 5 at the rear end of the mechanical pencil. Although this solution realizes the integration of the pencil eraser and does not need to carry an eraser in addition, it still has the following disadvantages:

1. The rubber 6 generally protrudes out of the cylindrical groove, so that the rubber 6 is easily polluted and dirty when carried or placed, thereby affecting the wiping effect during use.

2. The rubber 6 embedded in this way is generally small in size and will be used up after a period of time. The user still needs to carry the rubber in addition when using the mechanical pencil, which is very inconvenient. If the part of the rubber 6 protruding from the groove body is too much, problems such as easy breakage of the rubber and inconvenient carrying will be caused.

3. Since the rubber 6 is fixed in the cylindrical groove on the pen cap, only the rubber 6 protruding out of the groove can be used, and the part embedded in the groove cannot be used, which will inevitably cause waste of resources.

Therefore, how to change the structure of the existing mechanical pencil to eliminate the multi-purpose mechanical pencil with the small size of the attached eraser, easy to be polluted, and inconvenient to carry has become a kind of expectation of people, especially students.

Utility model content

The purpose of this utility model is to provide a multi-purpose mechanical pencil which can solve the problems of small volume, short use time, easy pollution, and insufficient use of the rubber attached to the mechanical pencil.

This multi-purpose mechanical pencil includes a pen holder 1, a pen cone 2 at the front end of the pen holder 1, a core tube 4 with a telescopic assembly for the pen core 3 to slide through, and a front end located inside the pen holder 1 connected to the pen cone 2 and The pen core control button 5 installed on the rear end of the core guide tube 4 to control the entry and exit of the pen core is characterized in that: there are two core guide tubes 4 for the pen core 3 to slide through in the pen holder 1, and one of the pen cores 3 is a pencil Core 3a, one is rubber core 3b. The pen cone 2b connected to the front end of the rubber core guide tube 4b for the rubber core 3b to slide through is cylindrical, and the lengths of the pencil core guide tube 4a and the rubber core guide tube 4b are greater than the penholder 1. The part beyond the penholder 1 at the rear end of the tube 4a and the rubber core guide tube 4b is buckled with a detachable pencil lead control button 5a and a rubber core control button 5b respectively.

Compared with the currently commonly used mechanical pencils, the multi-purpose mechanical pencil of the present utility model has the following advantages: the pencil core and the rubber core can be freely retracted, and the pencil core or the rubber core can be ejected by pressing the corresponding pen cap according to the need; Keep it retracted into the barrel when not in use. It not only ensures the cleanness of the eraser and is not easy to break, but also prolongs the use time due to the increased volume of the eraser. In addition, the rubber core can be replaced like the pencil lead, and the pencil and eraser in one pen can always be guaranteed. At the same time, it has a high application prospect.

Description of drawings

Accompanying drawing 1 is the internal structure schematic diagram of existing mechanical pencil with rubber.

Accompanying drawing 2 is the overall structure schematic diagram of the utility model.

Accompanying drawing 3 is the internal structure schematic diagram of the utility model.

In the figure: 1. Pen holder 2. Pen cone 3. Pen core 3a, pencil core 3b, rubber core 4. Core tube with telescopic component 4a, pencil core tube 4b, rubber core tube 5, pen Lead control button 5a, pencil lead control button 5b, rubber core control button 6, eraser

Detailed ways

The technical scheme of the utility model is further described below in conjunction with the accompanying drawings and embodiments.

The multipurpose propelling pencil as shown in accompanying drawing 1 and accompanying drawing 2, comprises pen holder 1, the pen cone 2 of pen holder 1 front end, the belt that is positioned at the front end of pen holder 1 interior and pen cone 2 is connected for pen core 3 slides through There is a core tube 4 with a telescopic component and a refill control button 5 installed at the rear end of the core tube 4 with a telescopic component to control the entry and exit of the refill. It is characterized in that: there are 2 supply pens in the pen holder 1 The core 3 slides through the core guide tube 4 with a telescopic assembly, one of the pen cores 3 is a pencil core 3a, and the other is a rubber core 3b. The pen cone 2b connected to the front end of the core tube 4b with a telescopic assembly for the rubber core 3b to slide through is cylindrical. The length of the core tube 4 with the telescopic assembly is longer than that of the penholder 1, and detachable control buttons 5 are respectively buckled on the part beyond the penholder 1 at the rear ends of the two core tubes 4 with the telescopic assembly. The telescopic assembly of the core tube 4 with the telescopic assembly is a known technology. When writing, just press the pencil lead control button 5a, and it can be used like an ordinary mechanical pencil; when a writing error occurs, press the pencil lead control button 5a again and the pencil lead 3a will retract into the pen cone 2a, at this time Press the rubber core control button 5b again, and the rubber core 3b pops up automatically like the pencil lead 3a, which can wipe off the wrong content of writing; The core 3b retracts into the pen cone 2a and the pen cone 2b respectively.

Claims (4)

1. A multi-purpose mechanical pencil, comprising a pen holder (1), a pen cone (2) at the front end of the pen holder (1), and a sliding refill (3) connected to the inside front end of the pen holder (1) and the pen cone (2) The lead tube (4) with the telescopic assembly that passes and the pen core control button (5) that is installed on the rear end of the guide tube (4) to control the entry and exit of the pen core (3), is characterized in that: there is a pen holder in the pen holder (1). Two core guide tubes (4) for the pen lead (3) to slide through, one of the core guide tubes (4) is a pencil core guide tube (4a), and the other is a rubber core guide tube (4b). 2. The multi-purpose mechanical pencil according to claim 1, characterized in that: the pen cone (2b) connected to the front end of the rubber core guide tube (4b) for the rubber core (3b) to slide through is cylindrical . 3. The multi-purpose mechanical pencil according to claim 1, characterized in that: the lengths of the pencil core guide tube (4a) and the rubber core guide tube (4b) are both longer than the pen barrel (1). 4. The multipurpose propelling pencil according to claim 1, characterized in that: the rear ends of the pencil core guide tube (4a) and the rubber core guide tube (4b) beyond the pen holder (1) are respectively buckled with detachable pencil lead control button (5a) and rubber lead control button (5b).

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