Portable frosted pen

Abstract

The utility model provides a portable frosted pen which comprises a pen body and a cover plate, the pen body is detachably connected with the cover plate, the top end of the pen body is provided with a quadrangular frustum pyramid, one side of the quadrangular frustum pyramid is provided with an installation groove used for containing abrasive paper, the interior of the pen body is a cavity, and a storage frame used for storing the abrasive paper is installed in the cavity. And the material pushing mechanism is used for pushing the abrasive paper and comprises a push rod which is in sliding connection with the inner wall of the cavity. The pen body, the quadrangular frustum pyramid, the rubber block, the material pushing mechanism and other components are tightly matched, the material pushing mechanism is contained in the inner cavity of the pen body, the quadrangular frustum pyramid at the top end of the pen body provides an installation position for abrasive paper, the push rod of the material pushing mechanism is in sliding connection with the T-shaped sliding groove of the cavity through the T-shaped protruding strip, and stable vertical movement is achieved; the rubber block can eject the abrasive paper out of the through hole to make contact with the metal surface, meanwhile, the locking mechanism prevents the push rod from sliding down due to the spring effect, the abrasive paper extending amount is accurately controlled, and therefore the polishing strength is accurately controlled.

Description

Technical Field

[0001] This utility model belongs to the field of hardware tool technology, and more specifically, it relates to a portable sanding pen. Background Technology

[0002] Metal products are ubiquitous and widely used in daily life and industrial production. Due to their unique physical properties, such as good electrical conductivity, thermal conductivity and high strength, metals have become key materials for many products. However, during long-term use, an oxide layer is easily formed on the surface of metals. Iron products rust in humid environments, copper products develop verdigris, and the aluminum oxide film on the surface of aluminum products also needs to be treated in some cases. These oxide layers not only affect the appearance, but also reduce the performance of metal products, such as accelerating corrosion and affecting electrical conductivity. Therefore, the removal of oxide layers on metal surfaces is of utmost importance.

[0003] Traditional cleaning methods mainly include manual sanding and electric polishing machine polishing. Although manual sanding is simple to operate and low in cost, it is extremely laborious and inefficient. Users need to spend a lot of time and energy repeatedly rubbing, making it difficult to ensure uniform polishing results and potentially causing secondary damage to the metal surface. Although electric polishing machines are relatively more efficient, they are bulky and heavy, making them inconvenient to carry and unusable in many situations.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a portable sanding pen, in order to achieve a more practical purpose. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a portable sanding pen, which is achieved by the following specific technical means:

[0006] A portable sanding pen includes a pen body and a cover plate, the pen body and the cover plate being detachably connected. A truncated square is installed at the top of the pen body, and a mounting groove for placing sandpaper is opened on one side of the truncated square. The pen body is hollow inside, and a storage rack for storing sandpaper is installed in the cavity. A pushing mechanism for pushing sandpaper is also provided. The pushing mechanism includes a push rod that is slidably connected to the inner wall of the cavity. A rubber block is fitted at the top of the push rod. A through hole adapted to the rubber block is opened on one side of the top of the pen body. The rubber block and the through hole are concentric. A locking mechanism is provided at the bottom of the push rod.

[0007] Preferably, multiple sets of insertion slots and multiple sets of insertion blocks are provided on opposite sides of the pen body and the cover plate, and the multiple sets of insertion slots and insertion blocks are provided in a one-to-one correspondence and are mutually compatible.

[0008] Preferably, the truncated pyramid is made of rubber, and the outer wall of the pen body is provided with multiple sets of anti-slip textures.

[0009] Preferably, the push rod has an inverted cross section, a T-shaped protrusion on the back side, and a T-shaped groove that mates with the T-shaped protrusion is provided in the cavity. The push rod is slidably connected to the cavity through the T-shaped protrusion.

[0010] Preferably, the locking mechanism includes a mounting shaft that runs through both sides of the bottom end of the push rod. A hemispherical lock head is fixedly fitted at the top of the mounting shaft, and an unlocking block is slidably mounted on the outer wall. A locking pin is abutted on one side of the unlocking block, a driving inclined surface is provided on one side of the locking pin, and a sliding shaft is installed on one side of the locking pin. A groove matching one end of the sliding shaft is provided on one side of the inner wall of the cavity. One end of the sliding shaft is slidably mounted in the groove and fitted with a first spring. The first spring is abutted between one side of the inner wall of the cavity and one side of the locking pin.

[0011] Preferably, the bottom end of the mounting shaft is installed through one side of the bottom end of the pen body and a handle is fixedly fitted thereon. A second spring is fitted on the outer wall of the bottom end of the mounting shaft, and the second spring is abutted between the bottom side of the pen body and the top side of the handle.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model features a pen body, a four-sided frustum, a rubber block, and a pushing mechanism that work together closely. The pen body has an internal cavity that houses the pushing mechanism, and the four-sided frustum at its top provides an installation position for the sandpaper. The push rod of the pushing mechanism is slidably connected to the T-shaped groove of the cavity via a T-shaped protrusion, enabling stable up-and-down movement. When the push rod is pushed, the rubber block can push the sandpaper out of the through hole and into contact with the metal surface. At the same time, the locking mechanism prevents the push rod from sliding down due to the spring action, precisely controlling the amount of sandpaper extension and thus accurately controlling the polishing force. This structural design allows the sandpaper to make full and uniform contact with the metal surface, effectively removing the oxide layer according to the thickness of the oxide layer and the metal material.

[0014] 2. This utility model achieves a detachable connection between the pen body and the cover plate through multiple sets of insertion slots and blocks, ensuring stability while facilitating opening. The storage rack inside the cavity stores spare sandpaper. When changing sandpaper, the user can easily open the cover plate, take out the new sandpaper from the storage rack, and replace it without any other tools, making it quick and convenient, reducing work interruption time, and improving overall work efficiency. The overall design is compact and portable, making it easy to carry for equipment repair and metal component maintenance during outdoor work; it can also be used for daily household tasks such as handling oxidation of furniture hardware and maintaining metal ornaments; and it is suitable for on-site emergency treatment of metal surface problems in industrial production, meeting the needs of various scenarios. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0016] Figure 2 This is a schematic diagram showing the disassembled state of the cover plate of this utility model.

[0017] Figure 3 This is a schematic diagram of a partial cavity structure of this utility model.

[0018] Figure 4 This is an enlarged schematic diagram of the locking mechanism of this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0020] 1. Pen body; 2. Anti-slip texture; 3. Four-sided pyramid; 4. Mounting slot; 5. Sandpaper; 6. Cover plate; 7. Through hole; 8. Rubber block; 9. Insertion slot; 10. Mounting shaft; 11. Lock head; 12. Unlocking block; 13. Locking pin; 14. First spring; 15. Sliding shaft; 16. Push rod; 17. Second spring; 18. Handle; 19. Insertion block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example:

[0023] As attached Figure 1 To be continued Figure 4 As shown:

[0024] This utility model provides a portable sanding pen, including a pen body 1 and a cover plate 6. The pen body 1 and the cover plate 6 are detachably connected. A quadrangular truncated pyramid 3 is installed at the top of the pen body 1. A mounting groove 4 for placing sandpaper 5 is opened on one side of the quadrangular truncated pyramid 3. The pen body 1 is hollow inside. A storage rack for storing sandpaper 5 is installed in the cavity, and a pushing mechanism for pushing sandpaper 5 is provided. The pushing mechanism includes a push rod 16 that is slidably connected to the inner wall of the cavity. A rubber block 8 is fitted at the top of the push rod 16. A through hole 7 adapted to the rubber block 8 is opened on one side of the top of the pen body 1. The rubber block 8 and the through hole 7 are concentric. A locking mechanism is provided at the bottom of the push rod 16.

[0025] The pen body 1 and the cover plate 6 have multiple sets of insertion slots 9 and multiple sets of insertion blocks 19 on opposite sides. The multiple sets of insertion slots 9 and insertion blocks 19 are set one-to-one and are compatible with each other. The beneficial effect of this design is that it ensures the stability of the connection between the pen body 1 and the cover plate 6, making the structure of the entire portable sanding pen reliable during normal use. It will not cause the parts to separate due to accidental collisions or slight shaking, ensuring the integrity and safety of the tool and facilitating stable sanding operations.

[0026] Among them, the quadrangular frustum 3 is made of rubber, and the outer wall of the pen body 1 is provided with multiple sets of anti-slip textures 2. The rubber material has a certain elasticity, which can play a buffering role when the sandpaper 5 comes into contact with the metal surface, reducing the vibration caused by sanding from being directly transmitted to the user's hand, thereby reducing the user's hand fatigue during long-term operation and making the sanding process more comfortable.

[0027] The push rod 16 has a U-shaped cross-section and a T-shaped protrusion on its back side. A T-shaped groove is formed within the cavity to mate with the protrusion. The push rod 16 is slidably connected to the cavity via the T-shaped protrusion. This design ensures the stability and accuracy of the push rod 16 when moving up and down within the cavity. During the material pushing process, the T-shaped protrusion slides along the T-shaped groove, effectively preventing the push rod 16 from shifting left or right or wobbling. This allows the push rod 16 to accurately transmit power to the rubber block 8, thereby stably pushing the sandpaper 5 out of the through hole 7, ensuring the consistency and accuracy of the sandpaper 5's extension length.

[0028] The locking mechanism includes mounting shafts 10 that run through both sides of the bottom end of the push rod 16. A hemispherical lock head 11 is fixedly fitted to the top of the mounting shaft 10. An unlocking block 12 is slidably mounted on the outer wall. A locking pin 13 is abutted against one side of the unlocking block 12. A driving ramp is formed on one side of the locking pin 13. A sliding shaft 15 is mounted on one side of the locking pin 13. A groove matching one end of the sliding shaft 15 is formed on one side of the inner wall of the cavity. One end of the sliding shaft 15 is slidably mounted in the groove and fitted with a first spring 14. The first spring 14 is abutted between one side of the inner wall of the cavity and one side of the locking pin 13. The unlocking block 12, slidably mounted on the outer wall, interacts with the driving ramp on one side of the locking pin 13, allowing the lock head 11 to be easily unlocked when the handle 18 is pressed, enabling the push rod 16 to move and adjust the extension of the sandpaper 5. The locking pin 13 slides within the groove on the inner wall of the cavity via the sliding shaft 15 and maintains its initial position under the action of the first spring 14, ensuring accurate and reliable unlocking and locking actions.

[0029] The bottom end of the mounting shaft 10 is installed through and mounted on one side of the bottom end of the pen body 1, and a handle 18 is fixedly mounted thereon. A second spring 17 is mounted on the outer wall of the bottom end of the mounting shaft 10, and the second spring 17 is abutted between the bottom side of the pen body 1 and the top side of the handle 18.

[0030] The working principle of this embodiment is as follows: When the user presses the handle 18, the handle 18 pushes the mounting shaft 10 upward. At this time, the locking head 11 at the top of the mounting shaft 10 abuts against and presses the locking pin 13, causing the locking pin 13 to overcome the elastic force of the first spring 14 and move to one side. The locking head 11 can then move upward, thus unlocking the device. Simultaneously, the push rod 16 rises with the mounting shaft 10. Due to the sliding engagement between the T-shaped protrusion on the back side of the push rod 16 and the T-shaped groove in the cavity, the push rod 16 can slide upward stably. The rubber block 8 at the top of the 16 pushes the sandpaper 5 out of the through hole 7 from the mounting groove 4, preparing the sandpaper 5 to contact the metal surface for polishing. When the user reaches the desired extension length of the sandpaper 5, they stop pushing the handle 18. At this time, although the second spring 17 will exert a downward squeezing force on the handle 18, attempting to move the mounting shaft 10 down, the locking pin 13 will be pushed back to its original position due to the elastic force of the first spring 14. Its bottom end will again abut against the bottom end of the lock head 11, thus preventing the lock head 11 from moving down. This locks the position of the push rod 16, allowing the top of the rubber block 8 to continuously abut against the sandpaper 5, maintaining the sandpaper 5's extension length outside the through hole 7. This ensures that the sandpaper 5 can stably contact the metal surface and apply appropriate pressure during polishing, achieving uniform and effective polishing. After polishing, the user presses the handle 18 again, causing the mounting shaft 10 to rise again. At this time, the unlocking block 12 on the outer wall of the mounting shaft 10 will engage with the locking pin 13 as it rises. The shape and position design of the unlocking block 12 allow it to squeeze the locking pin 13 during the rise, causing the locking pin 13 to overcome the elastic force of the first spring 14 and move to one side, thereby disengaging the lock head 11 from the locked state of the locking pin 13, preparing for the reset of the pushing mechanism. Next, the user can perform the reset operation of the pushing mechanism as needed, such as moving the mounting shaft 10 down through appropriate operation to return the push rod 16 and the rubber block 8 to their initial positions for the next polishing operation or other treatment of the sanding pen.

[0031] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A portable frosting pen, comprising a pen body (1) and a cover plate (6), characterized in that: The pen body (1) is detachably connected to the cover plate (6). A quadrangular truncated pyramid (3) is installed at the top of the pen body (1). A mounting groove (4) for placing sandpaper (5) is opened on one side of the quadrangular truncated pyramid (3). The pen body (1) is hollow inside. A storage rack for storing sandpaper (5) is installed in the cavity, and a pushing mechanism for pushing sandpaper (5) is provided. The pushing mechanism includes a push rod (16) that is slidably connected to the inner wall of the cavity. A rubber block (8) is fitted at the top of the push rod (16). A through hole (7) adapted to the rubber block (8) is opened on one side of the top of the pen body (1). The rubber block (8) and the through hole (7) are concentric. A locking mechanism is provided at the bottom of the push rod (16).

2. The portable sanding pen according to claim 1, characterized in that: The pen body (1) and the cover plate (6) are respectively provided with multiple sets of insertion slots (9) and multiple sets of insertion blocks (19) on opposite sides. The multiple sets of insertion slots (9) and insertion blocks (19) are provided in a one-to-one correspondence and are compatible with each other.

3. The portable sanding pen according to claim 1, characterized in that: The quadrangular frustum (3) is made of rubber, and the outer wall of the pen body (1) is provided with multiple sets of anti-slip textures (2) at intervals.

4. The portable sanding pen according to claim 1, characterized in that: The push rod (16) has a U-shaped cross section. A T-shaped protrusion is provided on the back side of the push rod (16). A T-shaped groove that cooperates with the T-shaped protrusion is provided in the cavity. The push rod (16) is slidably connected to the cavity through the T-shaped protrusion.

5. The portable sanding pen according to claim 1, characterized in that: The locking mechanism includes a mounting shaft (10) that runs through both sides of the bottom end of the push rod (16). A hemispherical lock head (11) is fixedly fitted on the top end of the mounting shaft (10), and an unlocking block (12) that slides on the outer wall. A locking pin (13) is abutted on one side of the unlocking block (12). A driving inclined surface is provided on one side of the locking pin (13). A sliding shaft (15) is installed on one side of the locking pin (13). A groove matching one end of the sliding shaft (15) is provided on one side of the inner wall of the cavity. One end of the sliding shaft (15) is slidably installed in the groove and fitted with a first spring (14). The first spring (14) is abutted between one side of the inner wall of the cavity and one side of the locking pin (13).

6. The portable sanding pen according to claim 5, characterized in that: The bottom end of the mounting shaft (10) is installed through one side of the bottom end of the pen body (1) and a handle (18) is fixedly mounted thereon. A second spring (17) is mounted on the outer wall of the bottom end of the mounting shaft (10). The second spring (17) is abutted between the bottom side of the pen body (1) and the top side of the handle (18).

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