CN2719599Y - Square lead core propelling pencil - Google Patents

Abstract

The utility model discloses a square lead core propelling pencil, which is used for coating answer card, and the square lead core propelling pencil is also used for consecutively outputting the lead cord. The square lead core propelling pencil comprises an inner rod, a connector, an inner rod support, a clamping head, and a clamp ring. The inner rod and the clamping head are respectively provided with square shaped lower core hole, the inner rod and the connector, and the connector and the clamping head are respectively sheathed in a directional way to cause the square shaped lower core hole of the inner rod mutually align with the square shaped lower core hole of the clamping head; and the inner rod is also provided with a rectangular core storing hole, the rectangular width of the core storing hole is corresponding to the thickness or the width of the square lead core, and the rectangular length of the core storing hole is corresponding to the total sum of the width or the total sum of the thickness of a plurality of square lead cores; the slopes on the lower end of the lead cord corresponding to each square lead cores are respectively arranged on the different height of the left and right inner wall of the inner rod.

Description

Square lead for retractable pencil propelling pencil

Technical field

The utility model relates to a kind of propelling pencil, particularly a kind of square lead for retractable pencil propelling pencil.

Background technology

In present various examinations, generally use a computer and declare the standard answer card of volume, the examinee need use the pencil blacking on the information point of selecting, when computer is read answering card to the quality requirement of its full-filling than higher, owing to there is not suitable card-coating pencil, the examinee is often arranged because unnecessary losing scores can't be discerned and be caused to the computer that makes of low quality of answer card filling, more examinee has then wasted valuable time too slowly because of full-filling speed.Propelling pencil in the market generally has only the lead for retractable pencil of circular cross-section, is not suitable for the full-filling answering card.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of full-filling answering card, square lead for retractable pencil propelling pencil of knockout continuously of being suitable for.

For solving the problems of the technologies described above, the utility model is by the following technical solutions: a kind of square lead for retractable pencil propelling pencil, comprise penholder, pen clip, for core, the point cover, the described core that replaces is by interior bar, connector, interior pole socket, chuck, clamp ring is formed, be provided with spring between connector and the interior pole socket, be with clamp ring between chuck and the interior pole socket, interior bar, chuck is respectively equipped with square core hole down, interior bar and connector, the directed respectively socket of connector and chuck aligns their square core hole down, interior bar also is provided with rectangle storage core hole, the rectangle width in storage core hole is suitable with the thickness or the width of square lead for retractable pencil, the rectangle length in storage core hole is suitable with the width summation or the thickness summation of some square lead for retractable pencils, be respectively equipped with and every corresponding core inclined-plane down of square lead for retractable pencil at differing heights on the left and right sides inwall of interior bar, core hole direction raises successively leaving down on the core inclined-plane under each.

In the technique scheme, because interior bar, chuck are respectively equipped with square core hole down, square lead for retractable pencil can be installed, be that the cross section is rectangle or foursquare lead for retractable pencil, need the information point width of blacking suitable on the width of square lead for retractable pencil and the answering card, a full-filling can reach requirement, can save the full-filling time, so the utility model propelling pencil is suitable for the full-filling answering card; Since be provided with successively and every corresponding core inclined-plane down of square lead for retractable pencil at differing heights on the left and right sides inwall of interior bar, the square lead for retractable pencil landing successively in the interior bar storage core hole, and realization is the purpose of knockout continuously.

Description of drawings

The utility model will be further described below in conjunction with the drawings and specific embodiments.

Fig. 1 is the general structure schematic diagram of a kind of embodiment of the square lead for retractable pencil propelling pencil of the utility model.

Fig. 2 is for the structure enlarged diagram behind core rotation 90 degree among Fig. 1.

Fig. 3 is the structural representation when second square lead for retractable pencil begins to play core among Fig. 2.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, a kind of embodiment of the square lead for retractable pencil propelling pencil of the utility model, comprise penholder 9, pen clip 10, for core, point cover 2, the described core that replaces is by interior bar 8, connector 7, interior pole socket 5, chuck 6, clamp ring 3 is formed, be provided with spring 4 between connector 7 and the interior pole socket 5, be with clamp ring 3 between chuck 6 and the interior pole socket 5, interior bar 8, chuck 6 is respectively equipped with square core hole down, the square cross section in core hole down can be rectangle or square, be that rectangle or foursquare square lead for retractable pencil are corresponding with the cross section respectively, interior bar 8 and connector 7, connector 7 aligns their square core hole down with the directed respectively socket of chuck 6, so-called directed socket is exactly: when interior bar 8, when the square following core hole of chuck 6 aligns, interior bar 8 and connector 7, connector 7 can be distinguished socket with chuck 6, when interior bar 8, the square down core hole site of chuck 6 not to the time, interior bar 8 and connector 7, connector 7 cannot be distinguished socket with chuck 6, the lower end of for example interior bar 8 is provided with square-section connecting portion or elliptic cross-section connecting portion, connector 7 is provided with the square-section endoporus or the elliptic cross-section endoporus of the socket that matches with the connecting portion of interior bar 8, connector 7 also can adopt the same manner to be connected with chuck 6, interior bar 8 also is provided with rectangle storage core hole 14, the rectangle width in storage core hole 14 is suitable with the thickness of square lead for retractable pencil 1, the thickness of square lead for retractable pencil 1 is the square-section width of square lead for retractable pencil 1, the rectangle length in storage core hole 14 is suitable with the width summation of three square lead for retractable pencils 1, the width of square lead for retractable pencil 1 is the square-section length of square lead for retractable pencil 1, on the left and right sides inwall of interior bar 8 differing heights be respectively equipped with about two square lead for retractable pencil 1 corresponding core inclined-planes 13 down.In order to make structure compact more, connector 7 and interior pole socket 5, interior pole socket 5 can be distinguished directed the cooperation with point cover 2, for example the cross section of connector 7 is oval, interior pole socket 5 is provided with and connector 7 corresponding elliptic cross-section endoporus, but make connector 7 not only axial slip but also radial position can not take place change promptly directed cooperation the in interior pole socket 5, interior pole socket 5 can be provided with two convex tendons 12, the madial wall of point cover 2 is provided with two grooves that convex tendon 12 matches with interior pole socket 5, but pole socket 5 not only axial slip but also radial position can not take place change promptly directed cooperation the in point cover 2 in making, point cover 2 is provided with and square lead for retractable pencil 1 corresponding square opening, because connector 7 and interior pole socket 5, interior pole socket 5 cooperates with point cover 2 is directed respectively, and square lead for retractable pencil 1 can't knockout with regard to dislocation can not take place with the square opening of point cover 2.Change for the ease of wiping, can be provided with erasing rubber 11 on the point cover 2.Its operation principle is: as Fig. 2, shown in Figure 3, three square lead for retractable pencils 1 are housed in the storage core hole 14 of interior bar 8, under the gravity effect, a middle square lead for retractable pencil 1 (first lead for retractable pencil) just enters chuck 6 smoothly, when playing core inclined-plane 13 on the right of first lead for retractable pencil uses afterbody arrival, the square lead for retractable pencil 1 (second lead for retractable pencil) on the right is slipped to first above the lead for retractable pencil under the effect on following core inclined-plane 13, the use that is second lead for retractable pencil is ready, with should second lead for retractable pencil when using under the left side core inclined-plane 13, the square lead for retractable pencil 1 on the left side (the 3rd lead for retractable pencil) is slipped to second above the lead for retractable pencil under the effect on following core inclined-plane 13, the use that is the 3rd lead for retractable pencil is ready, realizes the purpose of continuous knockout.

From the foregoing description as can be seen, the thickness or the width of the rectangle width in storage core hole 14 and square lead for retractable pencil 1 are suitable in the foregoing description, the rectangle length in storage core hole 14 is suitable with the width summation or the thickness summation of some (promptly more than three) square lead for retractable pencils 1, be respectively equipped with and every square lead for retractable pencil 1 corresponding core inclined-plane 13 down at differing heights on the left and right sides inwall of interior bar 8, core hole direction raises successively leaving down on core inclined-plane 13 under each, therefore the landing successively of every square lead for retractable pencil 1 can reach the purpose of this utility model equally.

Claims (4)

1, a kind of square lead for retractable pencil propelling pencil, comprise penholder, pen clip, for core, the point cover, the described core that replaces is by interior bar, connector, interior pole socket, chuck, clamp ring is formed, be provided with spring between connector and the interior pole socket, be with clamp ring between chuck and the interior pole socket, it is characterized in that: interior bar (8), chuck (6) is respectively equipped with square core hole down, interior bar (8) and connector (7), connector (7) and the directed respectively socket of chuck (6) align their square core hole down, interior bar (8) also is provided with rectangle storage core hole (14), the rectangle width in storage core hole (14) is suitable with the thickness or the width of square lead for retractable pencil (1), the rectangle length in storage core hole (14) is suitable with the width summation or the thickness summation of some square lead for retractable pencils (1), be respectively equipped with and the corresponding core inclined-plane (13) down of every square lead for retractable pencil (1) at differing heights on the left and right sides inwall of interior bar (8), core hole direction raises successively leaving down on core inclined-plane (13) under each.

2, square lead for retractable pencil propelling pencil according to claim 1, it is characterized in that: the thickness of the rectangle width in described storage core hole (14) and square lead for retractable pencil (1) is suitable, the rectangle length in storage core hole (14) is suitable with the width summation of three square lead for retractable pencils (1), is respectively equipped with a following core inclined-plane (13) at differing heights on the left and right sides inwall of interior bar (8).

3, square lead for retractable pencil propelling pencil according to claim 1 and 2 is characterized in that: connector (7) cooperates with interior pole socket (5), interior pole socket (5) and point cover (2) are directed respectively, and sharp cover (2) is provided with and the corresponding square opening of square lead for retractable pencil (1).

4, square lead for retractable pencil propelling pencil according to claim 3 is characterized in that: described point cover (2) is provided with erasing rubber (11).

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