Pen holder of extrusion type coating repair pen
The squeeze-type paint repair pen design solves the problems of inaccurate application and inconvenient cleaning of paint repair tools, enabling precise control and reusability of paint, and is suitable for detailed repairs in fields such as automobiles, furniture and electronic equipment.
Patent Information
- Application Number
- CN202422593892.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-10-25
AI Technical Summary
Traditional paint repair tools are inaccurate, waste materials, and are difficult to clean. In addition, touch-up paint pens use a single type of material and cannot be reused.
It adopts an extrusion feeding design, which achieves precise release of paint by controlling the air pressure inside the pen holder. A thin tube and a conical discharge port are set at the discharge end. Combined with a rubber piston and one-way valve structure, it can achieve uniform coating and convenient cleaning of paint.
It achieves precise control and uniform coating of paint, reduces waste, is easy to clean, supports paint replacement, and the pen barrel is reusable.
Smart Images
Figure CN223931842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a squeeze-type coating repair pen barrel, belonging to the field of coating repair and paint consumables. Background Technology
[0002] A paint repair pen is a tool that allows for easy and precise repair or coating of various surfaces. It is typically designed to repair small scratches, blemishes, or wear, particularly in the surface treatment of automobiles, furniture, and electronic devices. Traditional repair tools include spray paint cans, brushes, or touch-up pens for repairing small areas of damage; however, these tools have several drawbacks: First, the application of paint cans and brushes is not precise enough, easily leading to over-application, wasting material and potentially affecting the appearance. Furthermore, these tools often require preparation and cleaning time. Second, touch-up pens use only one type of paint and cannot be reused. Based on these shortcomings, this invention provides a squeeze-type paint repair pen handle. Utility Model Content
[0003] The purpose of this utility model is to provide a pen barrel for extrusion coating repair, which adopts an extrusion feeding design, which not only ensures stable material output and uniform coating, but also facilitates cleaning, reuse, and can adapt to all-round coating repair.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A squeeze-type coating repair pen includes a pen tube, an application connector, a paint outlet valve, a threaded air tube, a first one-way valve, a piston cylinder, a second one-way valve, a sealing gasket, an air inflator, a sleeve cap, and a spring. The pen tube is a hollow cylindrical structure with a threaded through hole at one end and a sealed connection between the other end and the paint outlet valve. The paint outlet valve is sealed to the application connector. The bottom end of the piston cylinder is connected to the threaded air tube, and the first one-way valve is located in the middle of the threaded air tube. The outer wall of the threaded air tube has external threads, and the threaded air tube is threaded to the threaded through hole. The piston cylinder is connected to the pen tube through the threaded air tube and the threaded through hole. The sealing gasket is located at the connection between the piston cylinder and the pen tube. The second one-way valve is located at the bottom of the piston cylinder. A spring is located at the bottom inside the piston cylinder and is connected to the air inflator. The air inflator slides sealed inside the piston cylinder. The top of the piston cylinder is connected to the sleeve cap, which is sleeved to the air inflator.
[0006] Preferably, the paint outlet valve is composed of a thick tube and a thin tube, which are integrally formed. The thick tube is sealed to the other end of the pen tube, and the thin tube is sealed to the coating connector.
[0007] Preferably, the coating connector includes a discharge tube, one end of which is sealed to the thin tube, and the other end of which is conical with an arc-shaped discharge port at the tip. Connecting ears are symmetrically connected to both sides of the discharge tube, and a roller is rotatably connected between the two connecting ears. The roller fits into the arc-shaped discharge port, and the discharge tube and the connecting ears are integrally formed.
[0008] Preferably, the air inflator includes a rubber piston, which is slidably and sealed to the piston cylinder. A compression rod is fixedly connected to the top of the rubber piston, the diameter of which is smaller than the diameter of the rubber piston. The sleeve cap is fitted over the compression rod and nested and engaged with the piston cylinder.
[0009] Preferably, the threaded air pipe includes a coarse threaded pipe, one end of which is connected to the piston cylinder, and the other end of which is connected to an air outlet, the diameter of which is smaller than that of the coarse threaded pipe.
[0010] This invention employs a compression feeding method, with a small-diameter air outlet at the air inlet and a thin tube and conical discharge tube at the discharge end. This control method is more precise than traditional paint pens. By controlling the air pressure inside the pen barrel, less or more paint can be released as needed, making it ideal for meticulous repair work. It is easy to hold and operate. The compression coating repair pen reduces paint waste and allows for paint replacement, enabling the pen barrel to be reused. Attached Figure Description
[0011] Figure 1 : A schematic diagram of the structure of this utility model;
[0012] Figure 2 : Exploded view of the structure of this utility model; Detailed Implementation
[0013] like Figure 2As shown, a squeeze-type coating repair pen includes a sleeve cap 1, an air plug 2, a piston cylinder 3, a threaded air tube 4, an air bladder 5, a pen tube 6, a paint outlet valve 7, and an application connector 8. The pen tube 6 is a hollow cylindrical structure with a threaded through hole at one end and a sealed connection to the paint outlet valve 7 at the other end. The paint outlet valve 7 is sealed to the application connector 8. The bottom end of the piston cylinder 3 is connected to the threaded air tube 4, and a one-way valve is provided in the middle of the threaded air tube 4. When the air plug 2 is pressed down, air is allowed to enter the pen tube 6 through the threaded air tube 4. The outer wall of the threaded air tube 4 is provided with an outer... The piston cylinder 3 is connected to the pen tube 6 via the threaded air pipe 4 and the threaded through hole. A sealing gasket is provided at the connection between the piston cylinder 3 and the pen tube 6. A one-way valve is provided at the bottom of the piston cylinder 3, allowing external air to enter the piston cylinder 3 when the air plug 2 pops up. A spring is provided at the bottom of the piston cylinder 3, and the spring is connected to the air plug 2. The air plug 2 slides and seals inside the piston cylinder 3. A sleeve cap 1 is connected to the top of the piston cylinder 3, and the sleeve cap 1 is sleeved with the air plug 2.
[0014] In other embodiments, the paint outlet valve 7 is composed of a thick tube and a thin tube, which are integrally formed. The thick tube is sealed to the other end of the pen tube 6, and the thin tube is sealed to the coating connector. The thin tube makes it difficult for the paint to flow out when it is not squeezed.
[0015] In other embodiments, the coating connector includes a discharge tube, one end of which is sealed to the thin tube, and the other end of which is conical with an arc-shaped discharge port at the tip. Symmetrical connecting ears are attached to both sides of the discharge tube, and a roller is rotatably connected between the two connecting ears. The roller fits into the arc-shaped discharge port. The discharge tube and the connecting ears are integrally formed. The other end of the discharge tube is conical with an arc-shaped discharge port at the tip. The arc-shaped discharge port fits into the roller, allowing for uniform discharge when the roller is rolling and sealing of the arc-shaped discharge port when the roller is not rolling, preventing paint from flowing out.
[0016] In other embodiments, the air plug 2 includes a rubber piston, which is slidably connected to the piston cylinder 3 in a sealed manner. A compression rod is fixedly connected to the top of the rubber piston, and the diameter of the compression rod is smaller than the diameter of the rubber piston. The sleeve cap 1 is sleeved on the outside of the compression rod and nested and snapped into the piston cylinder 3.
[0017] In other embodiments, the threaded air pipe 4 includes a coarse threaded pipe, one end of which is connected to the piston cylinder 3, and the other end of which is connected to an air outlet. The diameter of the air outlet is smaller than that of the coarse threaded pipe. By setting the other end of the air outlet, the thin pipe, and the discharge pipe to be conical, precise control of the extrusion of the coating can be achieved, avoiding the phenomenon of a large amount of coating flowing out when the air plug 2 is extruded.
[0018] This invention employs a compression feeding method, with a small-diameter air outlet at the air inlet and a thin tube and conical discharge tube at the discharge end. This control method is more precise than traditional paint pens. By controlling the air pressure inside the pen barrel, less or more paint can be released as needed, making it ideal for meticulous repair work. It is easy to hold and operate. The compression coating repair pen reduces paint waste and allows for paint replacement, enabling the pen barrel to be reused.
Claims
1. A pressure-type coating repair pen barrel, characterized in that: The system includes a sleeve cap (1), an air plug (2), a piston cylinder (3), a threaded air tube (4), an air bladder (5), a pen tube (6), a paint outlet valve (7), and an application connector (8). The pen tube (6) is a hollow cylindrical structure with a threaded through hole at one end and a sealed connection to the paint outlet valve (7) at the other end. The paint outlet valve (7) is sealed to the application connector (8). The bottom end of the piston cylinder (3) is integrally connected to the threaded air tube (4). A one-way valve is provided in the middle of the threaded air tube (4), and the outer wall of the threaded air tube (4) is provided with external threads. The air tube (4) is threadedly connected to the threaded through hole. The piston cylinder (3) is connected to the pen tube (6) through the threaded air tube (4) and the threaded through hole. There is a sealing gasket at the contact point between the piston cylinder (3) and the pen tube (6). A one-way valve is provided at the bottom of the side wall of the piston cylinder (3). A spring is provided at the bottom of the piston cylinder (3). The spring is connected to the air pump plug (2). The air pump plug (2) slides in a sealed manner inside the piston cylinder (3). A sleeve cap (1) is connected to the top of the piston cylinder (3). The sleeve cap (1) is sleeved with the air pump plug (2).
2. The pen barrel of the extrusion-type coating repair pen according to claim 1, characterized in that: The paint outlet valve (7) is composed of a thick tube and a thin tube, which are integrally formed. The thick tube is sealed to the other end of the pen tube (6), and the thin tube is sealed to the coating connector (8).
3. The pen barrel of the extrusion-type coating repair pen according to claim 2, characterized in that: The coating connector includes a discharge tube, one end of which is sealed to the thin tube, and the other end of which is conical with an arc-shaped discharge port at the tip. Connecting ears are symmetrically connected to both sides of the discharge tube, and a roller is rotatably connected between the two connecting ears. The roller fits into the arc-shaped discharge port, and the discharge tube and the connecting ears are integrally formed.
4. The pen barrel of the extrusion-type coating repair pen according to claim 3, characterized in that: The air inflator (2) includes a rubber piston, which is slidably connected to the piston cylinder (3). A compression rod is fixedly connected to the top of the rubber piston. The diameter of the compression rod is smaller than the diameter of the rubber piston. The sleeve cap (1) is sleeved on the outside of the compression rod and nested and snapped into the piston cylinder (3).
5. The pen barrel of an extrusion-type coating repair pen according to claim 4, characterized in that: The threaded air pipe (4) includes a coarse threaded pipe. One end of the coarse threaded pipe is connected to the piston cylinder (3), and the other end of the coarse threaded pipe is connected to an air outlet. The diameter of the air outlet is smaller than that of the coarse threaded pipe.