Pencil capable of preventing glue from overflowing

By designing a glue storage cavity and drainage hole in the cylindrical connector, the problems of easy damage to pencil connectors and glue overflow are solved, thus achieving the structural integrity and ease of use of the pencil.

CN223972352UActive Publication Date: 2026-03-06ZHEJIANG BEST SOFT BOARD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing pencil connectors are prone to structural damage when connecting the pencil body and eraser, and the connection is not firm, resulting in heavy pencils or unreliable connections. In addition, glue overflow affects the appearance and user experience.

Method used

A cylindrical connector is used to connect the pencil body and the eraser with glue. The connector has a glue reservoir and a drainage hole. The glue is evenly distributed during connection, and excess glue enters the glue reservoir through the drainage hole to prevent overflow.

Benefits of technology

This design avoids structural damage to the pencil and eraser during installation, ensures reliable connection, reduces glue overflow, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pencil capable of preventing glue from overflowing, which comprises a pencil body, an eraser and a connecting piece, the pencil body is fixedly connected with the eraser through the connecting piece, the pencil body is fixed with the connecting piece through glue, the eraser is fixed with the connecting piece through glue, the connecting piece is of a cylindrical structure, and the connecting piece comprises an eraser connecting cavity and a pencil body connecting cavity. The connecting piece is further provided with a glue storage cavity, a drainage face and drainage holes, and the eraser connecting cavity and the pencil body connecting cavity are connected with the glue storage cavity through the drainage holes. According to the glue-overflowing-preventing pencil, the pencil body, the eraser and the connecting piece are connected through glue, the pencil body and the eraser are prevented from being damaged to a great extent during installation, the glue is evenly distributed on the adhesion portion of the connecting piece through the drainage face, connecting dead corners are reduced, reliable connection is ensured, and the service life of the pencil is prolonged. Excessive glue for connection is drained into the glue storage cavity through the glue storage cavity formed in the connecting piece and the drainage hole communicated with the glue storage cavity, so that the glue is prevented from overflowing.
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Description

Technical Field

[0001] This utility model relates to the field of pencils, and more particularly to a pencil that prevents glue spillage. Background Technology

[0002] Pencils, as a common tool, come in various styles, including pencils with angular barrels, pencils with round barrels, and pencils with erasers. Pencils with erasers consist of three parts: the pencil body, the eraser, and a connector used to connect the pencil body and the eraser.

[0003] Generally, the aforementioned connectors are made of aluminum, which is relatively soft and easily deformed. To ensure a secure connection between the pencil and eraser, a sharp-ended nail is used to fix the aluminum connector to the pencil body and to the eraser. The sharp-ended nail is then used to press and deform the aluminum connector, causing it to embed itself into the pencil or eraser. This processing method can damage the overall structure of the pencil and eraser. If a processing error causes the connection between the pencil and eraser to become misaligned, the pencil cannot be reconnected to the eraser, and the error cannot be corrected. Therefore, this method requires a certain level of skill from the operator.

[0004] The aforementioned connector is made of plastic. In order to make the pencil body and eraser firmly connected, the processing precision is used to make the pencil body and eraser fit tightly with the plastic connector. Since the plastic itself has poor bonding strength, the wall thickness of the plastic connector needs to be increased. As a result, the diameter of the plastic connector of the finished pencil is larger than the diameter of the pencil itself. Therefore, the end of the pencil is relatively heavy, not easy to package and store, and the center of gravity of the pencil shifts when in use. Summary of the Invention

[0005] The purpose of this invention is to construct a pencil that connects the pencil body and eraser with glue, based on the existing pencil and the need for a lightweight structure that does not damage the pencil body. However, glue is fluid, and if too much glue is used, it will overflow, which will not only affect the appearance of the finished pencil but also the user experience. If too little glue is used, the connection will be unreliable. Therefore, this invention proposes a pencil that prevents glue overflow.

[0006] A pencil with spill-proof adhesive includes a pencil body, an eraser, and a connector. The pencil body and the eraser are fixedly connected by the connector. The pencil body is fixed to the connector with adhesive, and the eraser is fixed to the connector with adhesive. The connector has a cylindrical structure and includes an eraser connecting cavity and a pencil body connecting cavity.

[0007] The connector is also provided with a glue storage cavity, a drainage surface and a drainage hole. The eraser connecting cavity and the pencil body connecting cavity are both connected to the glue storage cavity through the drainage hole.

[0008] The assembly steps for the aforementioned anti-spill adhesive pencil are as follows:

[0009] (1) Squeeze glue into the bottom of the pencil body connecting cavity, then insert the pencil body into the pencil body connecting cavity, and wait for the glue to solidify so that the pencil body and the connector are fixed.

[0010] (2) Squeeze glue into the bottom of the rubber connection cavity, then insert the rubber into the rubber connection cavity and wait for the glue to solidify so that the rubber and the connector are fixed.

[0011] The pencil body and the eraser are connected by a connector.

[0012] In particular, the assembly order of steps (1) and (2) above can be replaced.

[0013] Because the glue is fluid, steps (1) and (2) above cannot be performed simultaneously. The glue used for fixing the connection is evenly distributed in the pencil body connection cavity and the eraser connection cavity.

[0014] Furthermore, the connector includes an adhesive portion, on which both the drainage surface and the drainage hole are located. Two sets of adhesive portions are provided. The pencil body connecting cavity is formed by the outer wall of the connector and one set of adhesive portions, and the pencil body connecting cavity has an opening facing outwards. The rubber connecting cavity is formed by the outer wall of the connector and another set of adhesive portions, and the rubber connecting cavity also has an opening facing outwards.

[0015] The openings of the pencil body connecting cavity and the eraser connecting cavity face opposite directions.

[0016] Furthermore, the two sets of adhesive portions are symmetrical about the position of the glue storage cavity, which is formed by the outer wall of the connector and the two sets of adhesive portions.

[0017] Furthermore, the drainage surface is an outwardly convex arc-shaped surface, and the drainage surface is located in the middle of the adhesive portion. The drainage surfaces provided on the two sets of adhesive portions protrude in opposite directions.

[0018] Furthermore, the adhesive portion is provided with a plurality of drainage holes, which are distributed in a ring around the drainage surface and are evenly spaced, and the drainage holes are connected to the drainage surface.

[0019] Furthermore, the drainage hole is a through hole with a large opening at one end and a small opening at the other end. The end with the large opening of the drainage hole is located on the end face of the adhesive part away from the glue storage cavity, and the end with the small opening of the drainage hole is located on the end face of the adhesive part close to the glue storage cavity.

[0020] Furthermore, the end face of the pencil body connected to the connector is configured as an inwardly concave arc-shaped surface, which corresponds to the shape of the outwardly convex arc-shaped surface of the drainage surface.

[0021] Furthermore, the end face of the rubber connected to the connector is configured as an inwardly concave arc-shaped surface, which corresponds to the shape of the outwardly convex arc-shaped surface of the drainage surface.

[0022] The beneficial effects of this utility model are as follows: The pencil disclosed in this application uses glue to connect the pencil body, eraser and connector, which greatly avoids damage to the pencil body and eraser during installation. The glue is evenly distributed on the adhesive part of the connector through the drainage surface, reducing dead corners and ensuring reliable connection. Furthermore, the glue storage cavity set inside the connector and the drainage hole connected to it are used to drain excess glue used for connection into the glue storage cavity, preventing glue overflow.

[0023] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of a specific example of the pencil of this utility model;

[0026] Figure 2 yes Figure 1 The main view;

[0027] Figure 3 yes Figure 2 A magnified view of the local structure;

[0028] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure;

[0029] Figure 5 yes Figure 4 A magnified view of the local structure;

[0030] Figure 6 This is a cross-sectional structural diagram of the connector in a specific example of the pencil of this utility model;

[0031] Figure 7 yes Figure 4 Schematic diagram at point AA;

[0032] In the diagram: 101, pencil body; 102, connector; 103, eraser; 104, adhesive part; 105, glue reservoir; 106, fixing surface; 107, drainage surface; 109, drainage hole; 120, eraser connecting cavity; 121, pencil body connecting cavity. Detailed Implementation

[0033] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] The pencil of this utility model will be further described with reference to the accompanying drawings.

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, the pencil in this embodiment includes a pencil body 101, an eraser 103, and a connector 102. The pencil body 101 and the eraser 103 are fixedly connected by the connector 102. The pencil body 101 is fixed to the connector 102 by glue, and the eraser 103 is fixed to the connector 102 by glue.

[0036] like Figure 4 and Figure 7 As shown, the connector 102 has a cylindrical structure and is provided with a glue storage cavity 105 and an adhesive part 104. The adhesive part 104 is provided with two parts, and the two adhesive parts 104 are symmetrical about the glue storage cavity 105.

[0037] The adhesive portion 104 is provided with a drainage surface 107, which is located in the middle of the adhesive portion 104. The drainage surface 107 is an outwardly convex arc-shaped surface. The lower end surface of the eraser 103 is an inwardly concave arc-shaped surface, and its shape corresponds to the outwardly convex arc-shaped surface of the drainage surface 107. The upper end surface of the pencil body 101 is an inwardly concave arc-shaped surface, and its shape corresponds to the outwardly convex arc-shaped surface of the drainage surface 107.

[0038] like Figures 5-7 As shown, the connector 102 is provided with an eraser connecting cavity 120 and a pencil body connecting cavity 121. The eraser connecting cavity 120 is connected to the glue storage cavity 105 through a drainage hole 109, and the pencil body connecting cavity 121 is also connected to the glue storage cavity 105 through a drainage hole 109.

[0039] The rubber connecting cavity 120 is surrounded by the outer wall of the connector 102 and the adhesive portion 104 located above it, and the opening of the rubber connecting cavity 120 faces upward.

[0040] The pencil body connecting cavity 121 is formed by the outer wall of the connector 102 and the adhesive part 104 located below, and the rubber connecting cavity 120 has its opening facing downward.

[0041] The adhesive part 104 is also provided with drainage holes 109. There are a total of 8 drainage holes 109, and the 8 drainage holes 109 are distributed in a ring around the drainage surface 107 and are evenly spaced. The drainage holes 109 are connected to the edge of the drainage surface 107.

[0042] The adhesive part 104 is used for connection on a fixed surface 106.

[0043] The drainage hole 109 is a through hole with a large opening at one end and a small opening at the other end. The end of the drainage hole 109 with the large opening is located on the side closer to the fixed surface 106, and the end of the drainage hole 109 with the small opening is located on the side farther away from the fixed surface 106.

[0044] The assembly steps for the aforementioned anti-spill adhesive pencil are as follows:

[0045] (1) Squeeze glue into the bottom of the pencil body connecting cavity, then insert the pencil body into the pencil body connecting cavity, and wait for the glue to solidify so that the pencil body and the connector are fixed.

[0046] (2) Squeeze glue into the bottom of the rubber connection cavity, then insert the rubber into the rubber connection cavity and wait for the glue to solidify so that the rubber and the connector are fixed.

[0047] The pencil body and the eraser are connected by a connector.

[0048] In particular, the assembly order of steps (1) and (2) above can be replaced.

[0049] Because the glue is fluid, steps (1) and (2) above cannot be performed simultaneously. The glue used for fixing the connection is evenly distributed in the pencil body connection cavity and the eraser connection cavity.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A glue-overflow-preventing pencil comprising a pencil body, an eraser, and a connecting member, the pencil body and the eraser being fixedly connected by the connecting member, characterized in that, The pencil body is fixed with the connecting piece by glue, the eraser is fixed with the connecting piece by glue, the connecting piece is a cylindrical structure, and the connecting piece comprises an eraser connecting cavity and a pencil body connecting cavity, The connecting piece is further provided with a glue storage cavity, a drainage surface and a drainage hole, and the eraser connecting cavity and the pencil body connecting cavity are connected with the glue storage cavity through the drainage hole.

2. The anti-bleed pencil according to claim 1, wherein The connecting piece is provided with a bonding part, the drainage surface and the drainage hole are arranged on the bonding part, the bonding part is provided with two groups, the pencil body connecting cavity is surrounded by the outer wall of the connecting piece and one group of the bonding parts, the pencil body connecting cavity is provided with an opening and the opening faces outward, the eraser connecting cavity is surrounded by the outer wall of the connecting piece and the other group of the bonding parts, and the eraser connecting cavity is provided with an opening and the opening faces outward. The openings of the pencil body connecting cavity and the eraser connecting cavity face in opposite directions.

3. The anti-bleed pencil of claim 2, wherein The two groups of bonding parts are symmetric about the position of the glue storage cavity, and the glue storage cavity is surrounded by the outer wall of the connecting piece and the two groups of bonding parts.

4. The anti-bleed pencil of claim 2, wherein The drainage surface is an outwardly convex arc surface, the drainage surface is located at the middle position of the bonding part, and the convex directions of the drainage surfaces arranged on the two groups of bonding parts are opposite.

5. The anti-bleed pencil of claim 2, wherein The bonding part is provided with a plurality of drainage holes, the plurality of drainage holes are distributed in a ring shape and uniformly spaced about the drainage surface as the center, and the drainage holes are connected with the drainage surface.

6. The anti-bleed pencil of claim 2, wherein The drainage hole is a through hole with one end large and the other end small, the large end of the drainage hole is located at the end face of the bonding part away from the glue storage cavity, and the small end of the drainage hole is located at the end face of the bonding part close to the glue storage cavity.

7. The anti-bleed pencil of claim 1 wherein, The end face of the end of the pencil body connected with the connecting piece is arranged as an inwardly recessed arc surface, and the inwardly recessed arc surface of the end corresponds in shape to the outwardly convex arc surface of the drainage surface.

8. The anti-bleed pencil of claim 1 wherein, The end face of the end of the eraser connected with the connecting piece is arranged as an inwardly recessed arc surface, and the inwardly recessed arc surface of the end corresponds in shape to the outwardly convex arc surface of the drainage surface.