A refillable adult oil pastel stick structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YUEYAN STATIONERY CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-19
Smart Images

Figure CN224375194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of oil pastels, and in particular to a structure for an adult oil pastel with replaceable refills. Background Technology
[0002] Oil pastels are easy to break due to their material, and they can also easily get drawn on other places. Utility Model Content
[0003] The present invention aims to overcome the shortcomings of existing technologies, such as easy breakage and easy contamination of the storage area, and provides an adult oil pastel structure with replaceable refills that is not easily broken or contaminated.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A refillable oil pastel structure for adults includes:
[0006] The core of the oil pastel is hollow inside.
[0007] The top shell is positioned above the oil pastel core;
[0008] Two side shells are evenly wrapped around the oil pastel core. The upper end of the side shell is fixedly connected to the lower end of the top shell. The lower cross-sectional shape of the side shell is triangular. The distance between the lower ends of the two side shells is narrower than the distance between the upper ends of the side shells.
[0009] The actuating plate is positioned between the top shell and the oil pastel core, with the lower end face of the actuating plate engaging with the upper end face of the oil pastel core.
[0010] The shaft core is placed on the lower end face of the top shell, the upper end face of the shaft core is fixedly connected to the top shell, and the lower end of the shaft core passes through the actuating plate and is placed inside the hollow interior of the oil pastel core.
[0011] An outer casing surrounds the outer surface of the lower part of the side strip shell, and the outer casing is threadedly connected to the outer surface of the side strip shell;
[0012] A cover tube surrounds the outer surface of the outer casing, and the inner surface of the cover tube is slidably connected to the outer surface of the outer casing.
[0013] During installation, first slide the actuating plate into the side shell to allow the spool to pass through. Then, place the crayon core between the side shells and allow the spool to pass through as well. Next, let the upper end of the crayon core press against the actuating plate against the top shell, locking the crayon core with the actuating plate. Then, screw the outer shell downwards to retract the side shells inwards and lock the crayon core in place. This way, the crayon core will not move around during use. The spool increases the strength of the crayon core, making it less likely to break. After using a section, loosen the outer shell, push the crayon core downwards with the actuating plate, and then fix it in place. When not in use, slide the cap tube downwards to cover the exposed crayon core below. This way, the crayon core will not be drawn on the storage area, achieving the purpose of not being easily broken and not easily contaminating the storage area.
[0014] Preferably, a support plate is provided on the outer side of the top shell, and the support plate is fixedly connected to the outer side of the top shell. The support plate can cooperate with the actuating plate to assist in the downward movement of the oil pastel core.
[0015] Preferably, the lower end face of the actuating plate is provided with a retaining ring, the center of which is coaxial with the shaft core. The retaining ring is fixedly connected to the lower end face of the actuating plate. The upper end face of the oil pastel core is provided with a retaining groove, the shape of which corresponds to the shape of the retaining ring. The retaining ring is placed in the retaining groove, and the oil pastel core is engaged with the lower end face of the actuating plate through the cooperation of the retaining ring and the retaining groove. The retaining ring and the retaining groove facilitate the connection between the oil pastel core and the actuating plate.
[0016] Preferably, the actuating plate has two symmetrical paddles on its side. One end of each paddle is fixedly connected to the side of the actuating plate, and the other end passes between the two side shells and is positioned outside the side shells. The paddles allow the actuating plate to be moved from outside the side shells.
[0017] Preferably, the outer surface of the outer casing is provided with several sliding grooves, which are evenly distributed on the outer surface of the outer casing. The upper end of each sliding groove communicates with the top of the outer casing. The inner surface of the cover tube is provided with several sliders, each corresponding to a sliding groove. The sliders are fixedly connected to the upper part of the inner surface of the cover tube and are placed within the sliding grooves. The cover tube is slidably connected to the outer casing through the cooperation of the sliders and sliding grooves. The sliders and sliding grooves facilitate the up-and-down movement of the cover tube.
[0018] Preferably, the support piece has a lower edge on its side, and the upper end face of the lower edge is fixedly connected to the side of the support piece. The lower edge prevents slippage when the support piece is in place.
[0019] The beneficial effects of this utility model are: it is not easy to break and does not easily contaminate the placement area; the support plate can cooperate with the actuating plate to assist in the downward movement of the oil pastel core; the retaining ring and the retaining groove facilitate the connection between the oil pastel core and the actuating plate; the actuating plate can be moved from outside the side shell; the slider and the sliding groove facilitate the up and down movement of the cover tube; the lower edge prevents slippage when the top support plate is in place. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a cross-sectional view of the main view of this utility model;
[0022] Figure 3 yes Figure 2 A magnified view of detail A;
[0023] Figure 4 yes Figure 2 A magnified view of detail B.
[0024] In the diagram: 1. Top shell, 2. Side shell, 3. Actuating plate, 4. Oil pastel core, 5. Shaft core, 6. Outer shell, 7. Cover tube, 8. Support plate, 9. Snap ring, 10. Snap groove, 11. Actuating piece, 12. Slide groove, 13. Slider, 14. Lower edge. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0026] like Figure 1 and Figure 2 In one embodiment, a replaceable refill adult oil pastel structure includes: an oil pastel core 4 with a hollow interior; a top shell 1 positioned above the oil pastel core 4; two side shells 2 evenly surrounding the oil pastel core 4, the upper ends of the side shells 2 being fixedly connected to the lower end face of the top shell 1, the lower cross-sectional shape of the side shells 2 being triangular, and the distance between the lower ends of the two side shells 2 being narrower than the distance between the upper ends of the side shells 2; and a sliding stop 3 positioned between the top shell 1 and the oil pastel core 4. Between, the lower end face of the actuating plate 3 is engaged with the upper end face of the oil pastel core 4; the shaft core 5 is placed on the lower end face of the top shell 1, the upper end face of the shaft core 5 is fixedly connected to the top shell 1, and the lower end of the shaft core 5 passes through the actuating plate 3 and is placed inside the hollow interior of the oil pastel core 4; the outer shell 6 is wrapped around the outer side face of the lower part of the side strip shell 2, and the outer shell 6 is threadedly connected to the outer side face of the side strip shell 2; the cover tube 7 is wrapped around the outer side face of the outer shell 6, and the inner side face of the cover tube 7 is slidably connected to the outer side face of the outer shell 6.
[0027] like Figure 1 and Figure 2 As shown, the support piece 8 is fixedly connected to the outer side of the top shell 1.
[0028] like Figure 2 and Figure 3 As shown, the center of the retaining ring 9 is coaxial with the shaft core 5. The retaining ring 9 is fixedly connected to the lower end face of the actuating plate 3. The shape of the retaining groove 10 corresponds to the shape of the retaining ring 9. The retaining ring 9 is placed in the retaining groove 10. The oil pastel core 4 is engaged with the lower end face of the actuating plate 3 through the cooperation of the retaining ring 9 and the retaining groove 10.
[0029] like Figure 1 As shown, the two paddles 11 are symmetrical. One end of the paddle 11 is fixedly connected to the side of the actuating plate 3, and the other end of the paddle 11 passes through the space between the two side strip shells 2 and is placed outside the side strip shell 2.
[0030] like Figure 2 and Figure 4 As shown, the slide grooves 12 are evenly distributed on the outer surface of the outer shell 6. The upper end of the slide grooves 12 is connected to the upper part of the outer shell 6. The sliders 13 correspond one-to-one with the slide grooves 12. The sliders 13 are fixedly connected to the upper part of the inner side of the cover tube 7. The sliders 13 are placed in the slide grooves 12. The cover tube 7 is slidably connected to the outer shell 6 through the cooperation of the sliders 13 and the slide grooves 12.
[0031] like Figure 1 and Figure 2 As shown, the upper end face of the lower edge 14 is fixedly connected to the side of the support piece 8.
[0032] During installation, first, insert the actuating plate 3 into the side shell 2, allowing the shaft core 5 to pass through. Then, place the oil pastel core 4 between the side shells 2, again allowing the shaft core 5 to pass through. Next, let the upper end of the oil pastel core 4 press against the actuating plate 3 onto the top shell 1, allowing the oil pastel core 4 to engage with the retaining ring 9 of the actuating plate 3 using the retaining groove 10. Then, screw the outer shell 6 downwards, causing the side shell 2 to retract inwards and lock the oil pastel core 4 in place. This way, the oil pastel core 4 will not move around during use. The shaft core 5 increases the strength of the oil pastel core 4, making it less likely to break. Afterwards, loosen the outer casing 6, hold the lever 11 with one hand and push the crayon core 4 downwards by pressing the lever plate 3, while the other hand holds the support plate 8 on the top casing 1. With your fingers encased in the lower edge 14, you can push the crayon core 4 out of the side casing 2 and then fix it with the outer casing 6. When not in use, use the slider 13 to slide the cover tube 7 downwards along the slide groove 12 so that the cover tube 7 covers the exposed crayon core 4 below. This way, when storing, it will not draw on the storage area, achieving the purpose of not easily breaking and not easily contaminating the storage area.
Claims
1. A refillable adult oil pastel structure, characterized in that, include: The oil pastel core (4) is hollow inside; The top shell (1) is placed above the oil pastel core (4); Two side shells (2) are evenly wrapped around the oil pastel core (4). The upper end of the side shell (2) is fixedly connected to the lower end face of the top shell (1). The lower cross-sectional shape of the side shell (2) is triangular. The distance between the lower ends of the two side shells (2) is narrower than the distance between the upper ends of the side shells (2). The actuating plate (3) is placed between the top shell (1) and the oil pastel core (4), and the lower end face of the actuating plate (3) is engaged with the upper end face of the oil pastel core (4). The shaft core (5) is placed on the lower end face of the top shell (1). The upper end face of the shaft core (5) is fixedly connected to the top shell (1). The lower end of the shaft core (5) passes through the actuating plate (3) and is placed inside the hollow interior of the oil pastel core (4). The outer shell (6) surrounds the outer side surface of the lower part of the side shell (2), and the outer shell (6) is threadedly connected to the outer side surface of the side shell (2); A cover tube (7) surrounds the outer surface of the outer shell (6), and the inner side of the cover tube (7) is slidably connected to the outer side of the outer shell (6).
2. The refillable adult drawing stick of claim 1, wherein, The outer side of the top shell (1) is provided with a support plate (8), and the support plate (8) is fixedly connected to the outer side of the top shell (1).
3. The structure of an adult oil pastel with replaceable refills according to claim 1, characterized in that, The lower end face of the actuating plate (3) is provided with a retaining ring (9), the center of the retaining ring (9) is coaxial with the shaft core (5), the retaining ring (9) is fixedly connected to the lower end face of the actuating plate (3), the upper end face of the oil pastel core (4) is provided with a retaining groove (10), the shape of the retaining groove (10) corresponds to the shape of the retaining ring (9), the retaining ring (9) is placed in the retaining groove (10), and the oil pastel core (4) is engaged with the lower end face of the actuating plate (3) through the cooperation of the retaining ring (9) and the retaining groove (10).
4. The refillable adult drawing stick of claim 1, wherein, The actuating plate (3) has two paddles (11) on its side. The two paddles (11) are symmetrical to each other. One end of the paddle (11) is fixedly connected to the side of the actuating plate (3), and the other end of the paddle (11) passes between the two side strip shells (2) and is placed outside the side strip shell (2).
5. The refillable adult drawing stick of claim 1, wherein, The outer surface of the outer shell (6) is provided with several sliding grooves (12). The sliding grooves (12) are evenly distributed on the outer surface of the outer shell (6). The upper end of the sliding groove (12) is connected to the upper part of the outer shell (6). The inner side of the cover tube (7) is provided with several sliders (13). The sliders (13) correspond one-to-one with the sliding grooves (12). The sliders (13) are fixedly connected to the upper part of the inner side of the cover tube (7). The sliders (13) are placed in the sliding grooves (12). The cover tube (7) is slidably connected to the outer shell (6) through the cooperation of the sliders (13) and the sliding grooves (12).
6. The refillable adult drawing stick of claim 2, wherein, The support plate (8) has a lower edge (14) on its side, and the upper end face of the lower edge (14) is fixedly connected to the side of the support plate (8).