Fluorescent pen
By designing a detachable ink cartridge structure and a battery-powered lighting function, the problems of disposable highlighters and writing in dim environments are solved, enabling convenient ink cartridge replacement and effective writing in low-light conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 慈溪市长城制笔有限公司
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-17
AI Technical Summary
Existing highlighters are typically single-use, and it is difficult to add and replace the internal ink, leading to resource waste and environmental pollution.
A highlighter pen was designed, which includes a detachable ink cartridge structure. The ink tube and ink outlet are connected by a spring-driven support plate, enabling convenient ink delivery and replacement. A battery compartment is set inside the pen body to power a light for use in dim environments.
It enables convenient ink cartridge replacement, reduces ink leakage, and improves lifespan and writing performance in low-light environments.
Smart Images

Figure CN224130759U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pen technology, and more particularly to a highlighter pen. Background Technology
[0002] Highlighters are a common writing tool that can draw bright lines on paper to mark important content or take notes. Highlighter ink is usually made of water-soluble dye and water, making it prone to drying out or leaking.
[0003] Existing highlighters are usually only usable once, and it is difficult to add or replace the ink after use. The replacement process is relatively cumbersome, which leads to resource waste and environmental pollution. Utility Model Content
[0004] In view of the shortcomings of the prior art, this application provides a highlighter that overcomes the deficiencies of the prior art. It aims to solve the problem that existing highlighters can usually only be used once, and it is difficult to add or replace the internal ink after use. The replacement method is relatively cumbersome, which causes resource waste and environmental pollution.
[0005] To achieve the above objectives, this application provides the following technical solution: a highlighter pen, including a pen cap, a pen body mounted on one side of the pen cap, a pen tip mounted between the pen body and the pen cap, an ink inlet chamber inside the pen tip, an ink tube and a support plate inside the ink inlet chamber, the support plate being located on one side of the ink tube, a connecting tube inside the support plate, two sets of springs mounted on one side of the support plate, the other ends of the two sets of springs being fixedly connected to the ink inlet chamber, the other end of the connecting tube being sleeved inside the ink tube, an installation groove inside the pen body, an ink sac inside the installation groove, an ink outlet corresponding to one end of the connecting tube on one side of the ink sac, and a baffle plate on the top of the pen body.
[0006] By adopting the above technical solution and designing the pen body, the user can remove the baffle from one side of the pen body and then insert the ink cartridge into the mounting slot to install it. At this time, the second spring inside the ink inlet will push the support plate, and the connecting tube will enter the ink outlet, completing the connection between the ink outlet and the connecting tube. Since the ink tube is sleeved on the outside of the connecting tube, the ink coming out of the ink outlet will enter the ink tube through the connecting tube, completing the ink delivery. After the ink in the ink cartridge is used up, the ink cartridge can be directly removed. This design makes it easier to replace the ink cartridge, and the second spring will keep the connecting tube firmly fixed inside the ink outlet, effectively reducing ink leakage and improving the service life and replacement efficiency of the ink cartridge.
[0007] As a preferred technical solution of this application, a battery compartment is provided at the end of the pen body away from the pen cap, and two electrode plates are provided on both sides of the battery compartment. Two sets of electrode plates are provided on both sides of the pen cap, a pen holder is provided above the pen cap, and a light is installed above the pen holder.
[0008] By adopting the above technical solution and setting up a battery compartment, when the operator needs to write, the pen cap is installed on the outside of the battery compartment. At this time, the second electrode and the first electrode are close to each other, so that the current inside the battery compartment can be conducted into the inside of the pen cap, thereby lighting up the lamp and improving the writing effect in dim environments.
[0009] As a preferred technical solution of this application, a stop plate is provided inside the pen body, and a spring is installed on one side of the stop plate.
[0010] By adopting the above technical solution and setting a spring, the abutment can press against one end of the ink sac during use, and cooperate with the support plate at the other end to achieve a more secure hold on the ink sac.
[0011] As a preferred technical solution of this application, the top of the pen body is provided with two sets of sliding grooves, and the bottom of the baffle is provided with two sets of sliders, the sliders being slidably connected to the inside of the sliding grooves.
[0012] By adopting the above technical solution and setting the sliding groove, the baffle can be disassembled and installed more conveniently during use, making it more convenient to use.
[0013] As a preferred technical solution of this application, the pen tip is provided with two sets of fixing rods inside, and the two sets of springs are sleeved on the outside of the fixing rods. One end of the two sets of fixing rods is fixedly connected to the pen tip, and the other end passes through the support plate and is slidably connected to it.
[0014] By adopting the above technical solution and setting a fixed rod, the movement of the support plate can be made more stable during use, and the position of the support plate can be limited, thereby improving the stability during use.
[0015] As a preferred technical solution of this application, an anti-slip sleeve is fitted on the outer side of the pen body, the anti-slip sleeve is located on one side of the baffle, and a reinforcing rib is provided at the connection between the pen holder and the pen cap.
[0016] By adopting the above technical solution and setting an anti-slip sleeve, the pen holder can be made more comfortable to use due to its anti-slip effect. The reinforcing ribs can also improve the lifespan of the pen holder and the gripping strength.
[0017] As a preferred technical solution of this application, a fixing block is provided on the top of the baffle.
[0018] By adopting the above technical solution and setting a fixing block, the sliding baffle can be moved more smoothly during use.
[0019] As a preferred technical solution of this application, the top of the pen tip is provided with a corresponding locking block inside the pen cap.
[0020] By adopting the above technical solution, the connection between the pen cap and the pen tip can be made more secure.
[0021] The beneficial effects of this application are:
[0022] 1. By designing the pen body, users can easily install the ink cartridge by removing the baffle from one side of the pen body and placing it into the mounting slot. A spring inside the ink inlet chamber then pushes the support plate, allowing the connecting tube to enter the ink outlet and connect to the tube. Since the ink tube is sleeved on the outside of the connecting tube, ink from the ink outlet flows through the connecting tube into the ink tube, completing the ink delivery. After the ink in the cartridge is used up, it can be easily removed. This design facilitates cartridge replacement, and the spring ensures the connecting tube is firmly fixed inside the ink outlet, effectively reducing ink leakage and extending the cartridge's lifespan and efficiency.
[0023] 2. By setting up a battery compartment, when the operator needs to write, the pen cap is installed on the outside of the battery compartment. At this time, the second electrode and the first electrode are close to each other, so that the current inside the battery compartment can be conducted into the pen cap, thereby turning on the light and improving the writing effect in dim environments. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this application;
[0025] Figure 2 This is a schematic diagram of the internal structure of this application;
[0026] Figure 3 This is a schematic diagram of the pen body structure of this application;
[0027] Figure 4 This is a schematic diagram of the pen tip structure of this application.
[0028] In the diagram: 1. Pen cap; 101. Electrode; 102. Pen holder; 103. Lighting lamp; 104. Reinforcing rib; 2. Pen body; 201. Mounting slot; 202. Support plate; 203. Spring 1; 204. Anti-slip sleeve; 205. Slide groove; 3. Pen tip; 301. Ink inlet; 302. Ink tube; 303. Support plate; 304. Connecting tube; 305. Spring 2; 306. Fixing rod; 4. Battery compartment; 401. Electrode 2; 5. Ink sac; 501. Ink outlet; 502. Fixing block; 6. Baffle; 601. Slider; 602. Fixing block. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] Reference Figure 1-4 A highlighter pen includes a cap 1, a pen body 2 attached to one side of the cap 1, and a pen tip 3 between the pen body 2 and the cap 1. The pen tip 3 has an ink inlet 301 inside, an ink tube 302 and a support plate 303 inside the ink inlet 301. The support plate 303 is located on one side of the ink tube 302, and a connecting tube 304 is inside the support plate 303. Two sets of springs 305 are installed on one side of the support plate 303, and the other ends of the two sets of springs 305 are fixedly connected to the ink inlet 301. The other end of the connecting tube 304 is sleeved inside the ink tube 302. The pen body 2 has an installation groove 201 inside, and an ink sac 5 is installed inside the installation groove 201. An ink outlet 501 corresponding to one end of the connecting tube 304 is opened on one side of the ink sac 5. A baffle 6 is provided on the top of the pen body 2. A stop plate 202 is provided inside the pen body 2, and a spring 203 is installed on one side of the stop plate 202.
[0031] By designing the pen body 2, the user can remove the baffle 6 from one side of the pen body 2 during use, and then insert the ink cartridge 5 into the mounting slot 201 to complete the installation of the ink cartridge 5. At this time, the spring 305 inside the ink inlet 301 will push the support plate 303, and then the connecting tube 304 will enter the ink outlet 501 to complete the connection between the ink outlet 501 and the connecting tube 304. Since the ink tube 302 is sleeved on the outside of the connecting tube 304, the ink coming out of the ink outlet 501 will enter the ink tube 302 through the connecting tube 304 to complete the ink delivery. After the ink in the ink cartridge 5 is used up, the ink cartridge 5 can be directly removed. This design makes it easier to replace the ink cartridge 5, and the spring 305 will keep the connecting tube 304 tightly fixed inside the ink outlet 501, which can effectively reduce ink leakage and effectively improve the service life and the efficiency of replacing the ink cartridge 5. By setting spring 203, during use, the abutment plate 202 can press against one end of the ink sac 5, and cooperate with the support plate 303 at the other end to achieve a more secure effect on the ink sac 5.
[0032] Reference Figure 1 The pen body 2 has a battery compartment 4 located at the end furthest from the cap 1. Two electrode plates 401 are located on both sides of the battery compartment 4. Two sets of electrode plates 101 are located on both sides of the cap 1. A pen holder 102 is located above the cap 1, and a light 103 is installed above the pen holder 102. Two sets of sliding grooves 205 are formed at the top of the pen body 2, and two sets of sliders 601 are located at the bottom of the baffle 6. The sliders 601 are slidably connected to the inside of the sliding grooves 205. An anti-slip sleeve 204 is fitted onto the outer side of the pen body 2, located on one side of the baffle 6. A reinforcing rib 104 is provided at the connection between the pen holder 102 and the cap 1. By providing the battery compartment 4, during use… When the staff needs to write, the pen cap 1 is installed on the outside of the battery compartment 4. At this time, the electrode 401 and the electrode 101 are close to each other, so that the current inside the battery compartment 4 can be conducted into the pen cap 1, thereby lighting up the lamp 103 and improving the writing effect in dim environments. By setting the slide groove 205, the baffle 6 can be removed and installed more easily during use, making it more convenient to use. By setting the anti-slip sleeve 204, it can play an anti-slip role during use, making it more comfortable to use. The reinforcing rib 104 can improve the holding life of the pen holder 102 and the clamping force.
[0033] Reference Figure 1The pen tip 3 has two sets of fixing rods 306 inside, and two sets of springs 305 are sleeved on the outside of the fixing rods 306. One end of the two sets of fixing rods 306 is fixedly connected to the pen tip 3, and the other end passes through the support plate 303 and is slidably connected to it. By setting the fixing rods 306, the movement of the support plate 303 can be made more stable during use, and the position of the support plate 303 can be limited, thus improving the stability during use. The top of the baffle 6 is provided with a fixing block 602. By setting the fixing block 602, the baffle 6 can slide better during use. The top of the pen tip 3 has an opening 307, and the inside of the pen cap 1 is provided with a locking block that matches 307. The setting of 307 can make the connection between the pen cap 1 and the pen tip 3 more secure.
[0034] Working principle: By setting up the pen body 2, during use, the user can remove the baffle 6 from one side of the pen body 2, and then insert the ink cartridge 5 into the mounting slot 201 to complete the installation of the ink cartridge 5. At this time, the spring 2 305 set inside the ink inlet 301 will push the support plate 303, and then the connecting tube 304 will enter the ink outlet 501, completing the connection between the ink outlet 501 and the connecting tube 304. Since the ink tube 302 is sleeved on the outside of the connecting tube 304, the ink coming out of the ink outlet 501 will enter the ink tube 302 through the connecting tube 304, completing the ink delivery. Subsequently, the ink inside the ink cartridge 5... After use, the ink cartridge 5 can be taken out directly. This setting makes it easier to replace the ink cartridge 5. The setting of the second spring 305 will make the connecting tube 304 tightly fixed inside the ink outlet 501, which can effectively reduce ink leakage and effectively improve the service life and the efficiency of replacing the ink cartridge 5. By setting the battery compartment 4, when the staff needs to write, the pen cap 1 is installed on the outside of the battery compartment 4. At this time, the second electrode 401 and the electrode 101 are close to each other, so that the current inside the battery compartment 4 can be conducted into the pen cap 1, thereby lighting up the lamp 103 and improving the writing effect in the dark.
[0035] Among them, by setting spring 203, during use, the abutment plate 202 can abut against one end of the ink sac 5, and cooperate with the support plate 303 at the other end to achieve a more secure effect on the ink sac 5. By setting the sliding groove 205, the baffle 6 can be disassembled and installed more conveniently during use, making it more convenient to use.
[0036] Meanwhile, by setting the fixing rod 306, the movement of the support plate 303 can be made more stable during use, and the position of the support plate 303 can be limited, thereby improving the stability during use.
[0037] In addition, by setting the anti-slip sleeve 204, it can play an anti-slip role during use, making it more comfortable to use. The reinforcing rib 104 can improve the service life of the pen holder 102 and the clamping force. By setting the fixing block 602, the baffle 6 can slide better during use. The 307 can make the connection between the pen cap 1 and the pen tip 3 more secure.
[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A highlighter pen comprising a cap (1), characterized in that, A pen body (2) is mounted on one side of the pen cap (1), and a pen tip (3) is mounted between the pen body (2) and the pen cap (1). An ink inlet (301) is provided inside the pen tip (3). An ink tube (302) and a support plate (303) are provided inside the ink inlet (301). The support plate (303) is located on one side of the ink tube (302). A connecting pipe (304) is provided inside the support plate (303). Two sets of springs are mounted on one side of the support plate (303). Two (305), the other end of the two sets of springs (305) is fixedly connected to the ink inlet (301), the other end of the connecting tube (304) is sleeved inside the ink tube (302), the pen body (2) is provided with an installation groove (201), the ink sac (5) is installed inside the installation groove (201), the ink sac (5) is provided with an ink outlet (501) on one side of the ink sac (5) corresponding to one end of the connecting tube (304), and a baffle (6) is provided on the top of the pen body (2).
2. A highlighter pen according to claim 1, wherein A battery compartment (4) is provided at the end of the pen body (2) away from the pen cap (1). Two electrode plates (401) are provided on both sides of the battery compartment (4). Two sets of electrode plates (101) are provided on both sides of the pen cap (1). A pen holder (102) is provided above the pen cap (1). A light (103) is installed above the pen holder (102).
3. A highlighter pen according to claim 1, wherein The pen body (2) has a stop plate (202) inside, and a spring (203) is installed on one side of the stop plate (202).
4. The fluorescent pen according to claim 1, wherein The top of the pen body (2) is provided with two sets of sliding grooves (205), and the bottom of the baffle (6) is provided with two sets of sliders (601), which are slidably connected to the inside of the sliding grooves (205).
5. The fluorescent pen according to claim 1, wherein The pen tip (3) is provided with two sets of fixing rods (306) inside. The two sets of springs (305) are sleeved on the outside of the fixing rods (306). One end of the two sets of fixing rods (306) is fixedly connected to the pen tip (3), and the other end passes through the support plate (303) and is slidably connected to it.
6. A highlighter pen according to claim 2, wherein The outer side of the pen body (2) is fitted with an anti-slip sleeve (204), the anti-slip sleeve (204) is located on one side of the baffle (6), and a reinforcing rib (104) is provided at the connection between the pen holder (102) and the pen cap (1).
7. A highlighter according to claim 1, characterized in that, A fixing block (602) is provided on the top of the baffle (6).
8. A highlighter pen according to claim 1, wherein The top of the pen tip (3) is provided with (307), and the inside of the pen cap (1) is provided with a locking block that matches (307).