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US 12,011,948 B2Granted
Double-head marker pen
AssigneeChina First Pencil Co., Ltd.
InventorBingyang Zhang
Life of this patent
Estimating the term…
Abstract
A double-head marker pen includes a first penholder, a second penholder and a connecting tube; one end of the first penholder is formed with a first pen head, and one end of the second penholder is formed with a second pen head; and an end of the first penholder away from the first pen head is detachably connected with an end of the second penholder away from the second pen head by the connecting tube.
Claims13
A double-head marker pen, comprising a first penholder, a second penholder and a connecting tube;
- a first end of the first penholder is formed with a first pen head, and a first end of the second penholder is formed with a second pen head;
- and a second end of the first penholder away from the first pen head is detachably connected with a second end of the second penholder away from the second pen head by the connecting tube, wherein the second end of the first penholder away from the first pen head is defined with a first cotton core insertion port in communication with an inner cavity of the first penholder, the second end of the second penholder away from the second pen head is defined with a second cotton core insertion port in communication with an inner cavity of the second penholder, and the first cotton core insertion port and the second cotton core insertion port are detachably provided with a closure, respectively.
A double-head marker pen, comprising a first penholder, a second penholder and a connecting tube;
- a first end of the first penholder is formed with a first pen head, and a first end of the second penholder is formed with a second pen head;
- and a second end of the first penholder away from the first pen head is detachably connected with a second end of the second penholder away from the second pen head by the connecting tube, wherein the first end of the first penholder close to the first pen head is formed with a first stopper ring, the first end of the second penholder close to the second pen head is formed with a second stopper ring, the first end of the first penholder formed with the first pen head is provided with a first pen cap, and the first end of the second penholder formed with the second pen head is provided with a second pen cap;
- and the first pen cap abuts against the first stopper ring, the second pen cap abuts against the second stopper ring, a part of the first stopper ring corresponding to an outer circular surface of the connecting tube protrudes from an outer circular surface of the first pen cap and the outer circular surface of the connecting tube, and forms a first edge;
- and a part of the second stopper ring corresponding to the outer circular surface of the connecting tube protrudes from an outer circular surface of the second pen cap and the outer circular surface of the connecting tube, and forms a second edge.
1 more element
A double-head marker pen, comprising a first penholder, a second penholder and a connecting tube;
- a first end of the first penholder is formed with a first pen head, and a first end of the second penholder is formed with a second pen head;
- and a second end of the first penholder away from the first pen head is detachably connected with a second end of the second penholder away from the second pen head by the connecting tube, wherein a cross section of the first penholder along a direction vertical to a length direction of the first penholder, a cross section of the second penholder along a direction vertical to a length direction of the second penholder, a cross section of the connecting tube along a direction vertical to a length direction of the connecting tube have a water-drop shape, an outer circumferential surface of the first penholder and an outer circumferential surface of the second penholder are composed of a first inclined plane, a second inclined plane and an arc-shaped surface;
- an angle between the first inclined plane and the second inclined plane is an acute angle, and two sides of the arc-shaped surface are respectively connected to the first inclined plane and the second inclined plane transitively via an arc surface;
- and a shape of an inner circumferential wall of the connecting tube is matched with a shape of the outer circumferential surface of the first penholder and a shape of the outer circumferential surface of the second penholder.
1 more element
Dependencies are inferred from the claim text.