A film coating transfer tool

By introducing a locking structure and its cooperation with the drive component into the coating transfer tool, the aesthetic and structural strength issues caused by the exposed drive component are resolved, resulting in a simple and aesthetically pleasing operation and improved product reliability and stability.

CN224296906UActive Publication Date: 2026-05-29SHANGHAI DELINIUS TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI DELINIUS TECHNOLOGY CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-29

Smart Images

  • Figure CN224296906U_ABST
    Figure CN224296906U_ABST
Patent Text Reader

Abstract

The application discloses a coating film transfer tool, which comprises a shell and a refill assembly, the refill assembly is slidingly installed in the shell, the refill assembly is provided with a transfer head, the shell is provided with an opening for the transfer head to slidingly extend and retract, the refill assembly is provided with a locking structure, the inner wall of the shell is provided with a plurality of locking positions matched with the locking structure, a driving member is slidingly installed on the shell, the driving member is connected with the locking structure to drive the refill assembly to slide, the locking structure is connected with the locking position to lock the refill assembly to slide, when the driving member is forced, the locking structure is driven by the force of the driving member to separate from the current locking position, so that the refill assembly is unlocked to slide, the locking structure is integrated in the shell, the overall appearance is more simple and beautiful, the sealing property between the shell and the locking structure is relatively better, and the reliability and stability of the product are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of stationery technology, and more specifically to a coating transfer tool. Background Technology

[0002] Coating transfer tools are widely used in office supplies, stationery, and various fields requiring surface finishing or covering, with correction tape being one of the most common forms. Traditional coating transfer tools typically consist of a housing, a transfer head, and a core assembly. The core assembly holds the coating tape for transfer, which wraps around the transfer head and transfers the coating onto other surfaces. For example, when using correction tape, pressing the transfer head down onto the paper and then applying appropriate force to the side transfers the coating onto the paper, achieving a correction effect. However, the portion of the tape wrapped around the transfer head is exposed outside the housing, making it prone to soiling or damage during storage. Currently, a common practice is to attach a protective cap to the correction head. However, this requires repeated opening and closing, increasing the user's steps and increasing the risk of loss or damage, thus compromising the protection of the correction head and tape.

[0003] Therefore, some technical solutions have proposed a transfer head telescopic correction tape, such as Chinese utility model patent CN215826340U, which discloses a sliding correction tape, including a housing and a core assembly that can move up and down in the housing. The housing has an opening for the head of the core assembly to be exposed, and a driving component for driving the core assembly to move up and down is provided on the side of the housing. The driving component includes a sliding plate, an elastic element, and a slider. The sliding plate is movably disposed in the housing and connected to the core assembly. The elastic element is used to limit the position of the sliding plate. The slider is slidably disposed on the outer wall of the housing and connected to the sliding plate. The slider is also provided with a fitting structure that can cancel the limiting relationship between the elastic element and the housing. In this technical solution, the addition of a driving component pushes the core assembly up and down by sliding, thereby exposing the head of the core assembly in the use state and retracting the head of the core assembly into the housing for protection in the non-use state. However, the drive component is directly mounted on the outer wall of the housing, resulting in an exposed overall structure that is aesthetically unappealing and susceptible to external interference such as dust and dirt. This can cause the slider to slide unevenly or the elastic element to malfunction. The housing has notches, limit openings, and slider tracks, all of which are exposed, making the correction tape appear complex and rough, lacking simplicity and aesthetics. Furthermore, the design of the notches and limit openings may weaken the overall strength of the housing, especially during long-term use, which may lead to deformation or damage, affecting the normal use of the correction tape. The poor sealing between the housing and the drive component allows dust and dirt to easily enter the housing, affecting the normal operation of the core component. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide a coating transfer tool that can control the sliding and locking of the core assembly through the cooperation of the driving component and the locking structure. The operation is simple and intuitive. The locking structure is integrated inside the housing, making the overall appearance more concise and beautiful. It also improves the structural strength of the housing and the sealing between the housing and the locking structure, thereby improving the reliability and stability of the product.

[0005] This application provides a coating transfer tool, including a housing and a transfer core assembly. The transfer core assembly is slidably installed inside the housing. The transfer core assembly is provided with a transfer head. The housing is provided with an opening for the transfer head to slide and extend. The transfer core assembly is provided with a locking structure. The inner wall of the housing is provided with a plurality of locking positions adapted to the locking structure. A driving member is slidably installed on the housing. The driving member is connected to the locking structure to drive the transfer core assembly to slide. The locking structure is connected to the locking positions to make the transfer core assembly slide and lock. When the driving member is subjected to force, the locking structure is disengaged from the current locking position by the force of the driving member, so that the transfer core assembly slides and unlocks.

[0006] In this technical solution, the housing serves as the main frame of the entire coating transfer tool, supporting and protecting the internal components. An opening is provided on the housing for the transfer head of the replacement core assembly to extend or retract from it. The size and shape of the opening are adapted to the size and shape of the transfer head, ensuring smooth entry and exit. The replacement core assembly slides into the housing, allowing it to extend the transfer head out of the housing during use for convenient transfer operations. When not in use, the replacement core assembly retracts the transfer head back into the housing for protection, avoiding the problems of traditional correction tape transfer heads and film tapes being exposed and easily soiled or damaged. A locking structure is provided on the replacement core assembly, which engages with a locking position within the housing to achieve sliding locking of the replacement core assembly. The shape and size of the locking position are consistent with the locking mechanism. The locking position can be a groove, protrusion, or other shaped structure to ensure the stability of the core assembly in the locked state. Multiple locking positions are provided to give the core assembly multiple lockable positions. The drive component is slidably mounted on the housing, and its position and sliding direction match the sliding direction of the core assembly. It can drive the core assembly to slide by sliding itself. The drive component is connected to the locking structure. This connection can be a direct physical connection or an indirect connection achieved through other intermediate components. When the transfer head needs to be used, the user applies force to the drive component. The drive component acts on the locking structure, causing the locking structure to disengage from the current locked position, thereby realizing the sliding unlocking of the core assembly. At this time, the user can slide the core assembly through the drive component, allowing the transfer head to extend out of the housing from the opening.

[0007] When the refill assembly slides out to its final position, the locking structure slides to the next locking position and connects with it, locking the refill assembly while keeping the transfer head in its extended state. When the transfer head needs to be retracted, the user applies force to the drive mechanism, which in turn applies force to the locking structure, disengaging it from its current locking position. This unlocks the refill assembly, allowing the user to slide it back into the housing via the drive mechanism. When the refill assembly slides back into its final position, the locking structure slides to its initial locking position and connects with it, locking the refill assembly in its final position. The transfer head remains in its retracted state. Users can control the sliding and locking of the core assembly by operating the drive components (such as pressing, sliding, etc.). The operation is simple and intuitive. The locking structure is integrated inside the housing. Compared with the exposed drive components in the prior art, the overall appearance is simpler and more beautiful. There are no complicated exposed structures, which improves the appearance and texture of the product and increases the structural strength of the housing. The sealing between the housing and the locking structure is relatively better, and dust, stains and other contaminants are less likely to enter the housing, thus better protecting the normal operation of the core assembly and improving the reliability and stability of the product.

[0008] As an improvement, the locking structure is provided with an elastic positioning part adapted to the locking position. The elastic positioning part engages with the locking position to allow the core assembly to slide and lock. The driving member is provided with an unlocking part adapted to the elastic positioning part. When the driving member is subjected to force, the unlocking part acts on the elastic positioning part, causing the elastic positioning part to elastically deform and disengage from the locking position, thus allowing the core assembly to slide and unlock. In this technical solution, the locking structure is provided with an elastic positioning part whose shape and size are adapted to the locking position. The elastic positioning part has a certain elastic deformation capacity, capable of deforming under force and returning to its original shape when no force is applied. The driving member is provided with an unlocking part whose structural design allows it to effectively contact the elastic positioning part and apply force to the elastic positioning part when the driving member is subjected to force, allowing the elastic positioning part to disengage from the current locking position. When the elastic positioning part engages with the locking position, the elastic positioning part can be locked in the locking position, thereby locking the position of the core assembly and keeping the transfer head in place. In the current state, when the user applies force to the drive component, the drive component acts on the elastic positioning part through the unlocking part. The elastic positioning part undergoes elastic deformation after being subjected to force, thereby disengaging from the current locking position and unlocking the core assembly, allowing it to slide. The engagement between the elastic positioning part and the locking position can firmly lock the core assembly, preventing it from sliding easily even under certain external forces, ensuring that the transfer head remains stable in the extended or retracted state. The unlocking part unlocks through elastic deformation. This design makes the unlocking process smoother and more reliable, reducing the risk of failure caused by mechanical jamming or wear.

[0009] As an improvement, the unlocking part is a trapezoidal groove structure. In this technical solution, the unlocking part is designed as a trapezoidal groove, and the size and shape of the trapezoidal groove structure are adapted to the elastic positioning part, ensuring that the unlocking part can accurately contact and act with the elastic positioning part when the driving member slides or presses, thereby realizing the unlocking function. The unlocking part of the trapezoidal groove structure has two inclined surfaces on both sides and a bottom plane. The two inclined surfaces are used to contact the elastic positioning part and provide guidance for the elastic deformation of the elastic positioning part, while the bottom plane is used to accommodate the elastic positioning part. When the driving member moves, the two inclined surfaces first contact the elastic positioning part. Through the inclination angle of the inclined surfaces, force is gradually applied, causing the elastic positioning part to undergo elastic deformation and disengage from the locked position. The two inclined surfaces can cooperate with the bidirectional sliding unlocking operation of the elastic positioning part. No matter whether the driving member slides forward or backward, the two inclined surfaces can guide the elastic positioning part to undergo elastic deformation and disengage from the locked position. The structure is ingeniously designed and the operation is flexible.

[0010] As an improvement, the locking structure includes a mounting base and an elastic element. The mounting base is disposed on the core assembly, the elastic element is installed within the mounting base, and the elastic positioning part is disposed on the elastic element. In this technical solution, the mounting base is the main part of the locking structure, providing installation and positioning functions for the elastic element. The mounting base can be integrally formed on the core assembly, providing a stable mounting foundation for the elastic element and reducing locking and unlocking problems caused by the elastic element shaking or displacement. The elastic element refers to a structure with an elastic positioning part, specifically a spring. The elastic positioning part is part of the elastic element and directly contacts the locking position to realize the locking and unlocking functions. The elastic element provides stable support for the elastic positioning part, improving the reliability of locking and unlocking actions and reducing locking or unlocking failures caused by insufficient or failed elasticity.

[0011] As an improvement, the housing is provided with a first sliding groove adapted to the driving component. The driving component passes through the first sliding groove and connects to the locking structure. The driving component slides along the first sliding groove under force to drive the replacement core assembly to slide. In this technical solution, the first sliding groove is set on the housing, and the length direction of the first sliding groove is consistent with the sliding direction of the replacement core assembly, ensuring that the driving component can slide along a predetermined path, avoiding deviation or jamming caused by improper operation, thereby achieving precise control of the sliding of the replacement core assembly. The first sliding groove also serves to hide the locking structure. The locking structure is installed inside the housing. The driving component passes through the first sliding groove and is connected to the locking structure, transmitting the force applied by the user to the locking structure to realize the unlocking and locking operations of the locking structure. Through the design of the first sliding groove, the locking structure is hidden inside the housing, improving the reliability and durability of the product.

[0012] As an improvement, the locking structure is provided with a limiting part adapted to the driving component. The driving component is connected to the limiting part to achieve a limiting connection with the replacement core assembly. In this technical solution, by setting a limiting part on the locking structure, the limiting part achieves a stable mechanical connection through its adaptation design with the driving component, thereby limiting the driving component to the replacement core assembly and preventing the driving component from detaching from the replacement core assembly. This connection can be a snap, groove, protrusion, or other form of structure, ensuring that the driving component always maintains its connection with the replacement core assembly during sliding, improving operational reliability, reducing operational errors caused by external force interference, and improving the stability of the entire structure.

[0013] As an improvement, a protective cap is rotatably mounted on the housing. The protective cap opens and closes the opening by rotating. The replacement core assembly is provided with a linkage part that abuts against the protective cap. The replacement core assembly slides under force through the linkage part to drive the protective cap to rotate. In this technical solution, the protective cap is mounted on the housing by rotation. The protective cap opens and closes the opening on the housing by rotating. A linkage part is provided on the replacement core assembly. The main function of the linkage part is to transmit the sliding force of the replacement core assembly to the protective cap, driving the protective cap to rotate. The rotation of the protective cap is linked to the sliding action of the replacement core assembly through the linkage part. The user drives the replacement core assembly to slide through the drive component. The replacement core assembly slides to make the linkage part abut against the protective cap, thereby driving the protective cap to rotate to open or close the opening. The user does not need to manually operate the protective cap; they only need to slide the drive component to realize the extension of the transfer head and the automatic opening and closing of the protective cap, making the operation more convenient and labor-saving.

[0014] As an improvement, the linkage part has a columnar protrusion structure, and the protective cap has a guide part adapted to the linkage part. The linkage part abuts against the guide part to drive the protective cap to rotate. In this technical solution, the linkage part with the columnar protrusion structure can stably and reliably abut against the protective cap during the sliding of the core assembly. The guide part is provided on the protective cap, and the shape and size of the guide part are designed to fit tightly with the columnar protrusion structure of the linkage part. The guide part drives the protective cap to rotate by cooperating with the linkage part. The linkage design reduces the risk of misoperation caused by manual operation of the protective cap. The abutment design between the linkage part with the columnar protrusion structure and the adapted guide part ensures stable force transmission, reduces operational errors caused by external force interference, and improves the stability of the entire structure.

[0015] As an improvement, the housing includes a first housing and a second housing, which are detachably connected. The replacement core assembly is installed inside the first housing, and the second housing is connected to the first housing to confine the replacement core assembly within the first housing. In this technical solution, the housing consists of a first housing and a second housing, which are assembled together by a detachable connection. The connection between the first housing and the second housing can be a snap-fit ​​connection, a plug-in connection, or other mechanical connection methods to ensure a stable connection between the first housing and the second housing during normal use, while facilitating disassembly and assembly by the user. The replacement core assembly is installed between the first housing and the second housing, making the replacement core assembly replaceable. When the replacement core assembly needs to be replaced or maintained, the user can easily disassemble the second housing and remove the replacement core assembly. The split design makes the replacement of the replacement core assembly more convenient and reduces the product's usage cost.

[0016] As an improvement, the replacement core assembly includes a replacement core holder and a winding and unwinding mechanism, wherein the replacement core holder and the winding and unwinding mechanism are detachably connected. In this technical solution, the replacement core holder is the basic structural part of the replacement core assembly, providing support and positioning functions for the winding and unwinding mechanism. The winding and unwinding mechanism is the core part of the replacement core assembly, responsible for winding and unwinding the film tape. The replacement core holder and the winding and unwinding mechanism are connected by a detachable connection, ensuring a stable connection during normal use, while facilitating disassembly and assembly. This allows the replacement core holder and the winding and unwinding mechanism to be manufactured and maintained independently. After the original film tape is used up, the winding and unwinding mechanism can be directly removed for replacement without replacing the entire replacement core assembly, thus saving usage costs. The detachable connection design makes the replacement of the winding and unwinding mechanism more convenient and labor-saving. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a coating transfer tool according to this application.

[0018] Figure 2 This is an exploded structural diagram of a coating transfer tool according to this application.

[0019] Figure 3 This is a three-dimensional structural diagram of the core replacement assembly and protective cap in this application.

[0020] Figure 4 This is a three-dimensional structural diagram of the driving component in this application.

[0021] Figure 5 This is a three-dimensional structural diagram of some of the housing, elastic elements and driving elements in this application.

[0022] Figure 6 This is a cross-sectional structural diagram of a coating transfer tool according to this application.

[0023] Figure 7 For this application Figure 3A magnified view of a portion of point A in the middle.

[0024] Figure 8 This is an exploded view of the core replacement component in this application.

[0025] The figure shows: 1. Housing; 11. Opening; 12. Locking position; 13. First slide groove; 14. First housing; 15. Second housing; 2. Replacement core assembly; 21. Transfer head; 22. Linkage part; 23. Replacement core holder; 24. Roll-up and unrolling mechanism; 3. Locking structure; 31. Elastic positioning part; 32. Mounting base; 33. Elastic element; 34. Limiting part; 4. Driving element; 41. Unlocking part; 5. Protective cap; 51. Guide part. Detailed Implementation

[0026] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0027] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0028] It should also be understood that the terms "comprising," "including," "having," "containing," and "including," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (the specific types and constructions may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0029] Furthermore, it should be noted that the terms "installation," "setting," "equipped with," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components; they can refer to a direct installation on another component or the possible presence of another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] like Figures 1 to 8 As shown, this application discloses a coating transfer tool, including a housing 1 and a core assembly 2. The core assembly 2 is slidably installed inside the housing 1 and is provided with a transfer head 21. The housing 1 is provided with an opening 11 for the transfer head 21 to slide and extend. The housing 1 serves as the main frame of the entire coating transfer tool, supporting and protecting the internal components. The opening 11 on the housing 1 allows the transfer head 21 of the core assembly 2 to extend out of or retract into the housing 1. The size and shape of the opening 11 are adapted to the size and shape of the transfer head 21 to ensure that the transfer head 21 can smoothly enter and exit. The core assembly 2 is slidably fitted with the housing 1 so that when in use, the core assembly 2 can drive the transfer head 21 to slide out of the housing 1, facilitating the user's transfer operation. When not in use, the core assembly 2 can drive the transfer head 21 to slide and retract into the housing 1, providing protection and avoiding the problem of the traditional correction tape transfer head 21 and film tape being exposed and easily soiled or damaged.

[0031] like Figure 3 , Figure 5 and Figure 6 As shown, the replacement core assembly 2 is provided with a locking structure 3, and the inner wall of the housing 1 is provided with a plurality of locking positions 12 adapted to the locking structure 3. The locking structure 3 cooperates with the locking positions 12 in the housing 1 to realize the sliding locking of the replacement core assembly 2. The shape and size of the locking positions 12 are adapted to the locking structure 3. The locking positions 12 can be grooves, protrusions or other shapes, which can ensure that the replacement core assembly 2 remains stable in the locked state. The provision of multiple locking positions 12 provides multiple lockable positions for the replacement core assembly 2.

[0032] like Figures 4 to 6As shown, a driving component 4 is slidably mounted on the housing 1. The driving component 4 is connected to the locking structure 3 to drive the replacement core assembly 2 to slide. The locking structure 3 is connected to the locking position 12 to lock the replacement core assembly 2. When the driving component 4 is subjected to force, the locking structure 3 is disengaged from the current locking position 12 by the force of the driving component 4, so that the replacement core assembly 2 can slide to unlock. The locking structure 3 is provided on the replacement core assembly 2. The driving component 4 is slidably mounted on the housing 1. Its position and sliding direction match the sliding direction of the replacement core assembly 2. It can drive the replacement core assembly 2 to slide by its own sliding. The driving component 4 is connected to the locking structure 3. This connection can be a direct physical connection or an indirect connection achieved through other intermediate components. When the transfer head 21 needs to be used, the user applies force to the driving component 4. The driving component 4 is subjected to force on the locking structure 3, causing the locking structure 3 to disengage from the current locking position 12, thereby realizing the sliding unlock of the replacement core assembly 2. At this time, the user can make the replacement core assembly 2 slide by the driving component 4, so that the transfer head 21 extends out of the housing 1 from the opening 11.

[0033] When the replacement core assembly 2 slides out to its final position, the locking structure 3 slides to the next locking position 12 and connects with it, thus locking the replacement core assembly 2. The transfer head 21 remains in its extended state. When the transfer head 21 needs to be retracted, the user applies force to the driving component 4. The driving component 4, under pressure, acts on the locking structure 3, causing it to disengage from the current locking position 12, thereby unlocking the replacement core assembly 2. At this time, the user can slide the replacement core assembly 2 using the driving component 4, causing the transfer head 21 to retract from the opening 11 back into the housing 1. When the replacement core assembly 2 slides back to its final position, the locking structure 3 slides to the initial locking position 12 and connects with it. This allows the core assembly 2 to slide and lock, while the transfer head 21 remains in its current retracted state. Users can control the sliding and locking of the core assembly 2 by operating the drive component 4 (such as pressing or sliding). The operation is simple and intuitive. The locking structure 3 is integrated inside the housing 1. Compared with the exposed drive component in the prior art, the overall appearance is simpler and more beautiful. There is no complicated exposed structure, which improves the appearance and texture of the product and increases the structural strength of the housing 1. The sealing between the housing 1 and the locking structure 3 is relatively better, and dust and stains are less likely to enter the interior of the housing 1, thereby better protecting the normal operation of the core assembly and improving the reliability and stability of the product.

[0034] More specifically, such as Figure 5As shown, the locking structure 3 is provided with an elastic positioning part 31 adapted to the locking position 12. The elastic positioning part 31 engages with the locking position 12 to make the core assembly 2 slide locked. The driving member 4 is provided with an unlocking part 41 adapted to the elastic positioning part 31. When the driving member 4 is subjected to force, it acts on the elastic positioning part 31 through the unlocking part 41. The elastic positioning part 31 undergoes elastic deformation under force and disengages from the locking position 12, thus making the core assembly 2 slide unlock. The locking structure 3 is provided with an elastic positioning part 31, the shape and size of which are adapted to the locking position 12. The elastic positioning part 31 has a certain elastic deformation capacity, which can deform under force and return to its original shape when no force is applied. The unlocking part 41 is provided on the driving member 4. The structure design of the unlocking part 41 can effectively contact the elastic positioning part 31 and apply force to the elastic positioning part 31 when the driving member 4 is subjected to force, so that the elastic positioning part 31... The elastic positioning part 31 can disengage from the current locking position 12. When the elastic positioning part 31 engages with the locking position 12, the elastic positioning part 31 can be locked in the locking position 12, thereby locking the position of the core assembly 2 and keeping the transfer head 21 in the current state. When the user applies force to the driving member 4, the driving member 4 acts on the elastic positioning part 31 through the unlocking part 41. The elastic positioning part 31 undergoes elastic deformation after being subjected to force, thereby disengaging from the current locking position 12 and unlocking the core assembly 2, allowing it to slide. The engagement of the elastic positioning part 31 and the locking position 12 can firmly lock the core assembly 2, and it will not easily slide even under a certain external force, ensuring that the transfer head 21 remains stable in the extended or retracted state. The unlocking part 41 unlocks through elastic deformation. This design makes the unlocking process smoother and more reliable, reducing the risk of failure caused by mechanical jamming or wear.

[0035] More specifically, such as Figure 4 and Figure 5 As shown, the unlocking part 41 has a trapezoidal groove structure. The size and shape of the trapezoidal groove structure are adapted to the elastic positioning part 31, ensuring that when the driving member 4 slides or presses, the unlocking part 41 can accurately contact and act with the elastic positioning part 31 to achieve the unlocking function. The unlocking part 41 with the trapezoidal groove structure has two inclined surfaces on both sides and a bottom plane. The two inclined surfaces are used to contact the elastic positioning part 31 and provide guidance for the elastic deformation of the elastic positioning part 31, while the bottom plane is used to accommodate the elastic positioning part 31. When the driving member 4 moves, the two inclined surfaces first contact the elastic positioning part 31. Through the inclination angle of the inclined surfaces, force is gradually applied, causing the elastic positioning part 31 to undergo elastic deformation and disengage from the locking position 12. The two inclined surfaces can cooperate with the unlocking operation of the elastic positioning part sliding in both directions. No matter whether the driving member 4 slides forward or backward, the two inclined surfaces can guide the elastic positioning part 31 to undergo elastic deformation and disengage from the locking position 12. The structure is ingeniously designed and the operation is flexible.

[0036] More specifically, such as Figure 3 and Figure 6As shown, the locking structure 3 includes a mounting base 32 and an elastic element 33. The mounting base 32 is disposed on the core assembly 2, and the elastic element 33 is installed inside the mounting base 32. An elastic positioning part 31 is disposed on the elastic element 33. The mounting base 32 is the main body of the locking structure 3, providing the function of mounting and positioning the elastic element 33. The mounting base 32 can be integrally formed on the core assembly 2. The mounting base 32 provides a stable mounting foundation for the elastic element 33, reducing locking and unlocking problems caused by the shaking or displacement of the elastic element 33. The elastic element 33 refers to a structure with an elastic positioning part 31, which can be a spring. The elastic positioning part 31 is a part of the elastic element 33 and directly contacts the locking position 12 to realize the locking and unlocking functions. The elastic element 33 provides stable support for the elastic positioning part 31, improving the reliability of locking and unlocking actions and reducing locking or unlocking failures caused by insufficient elasticity or elastic failure.

[0037] More specifically, such as Figure 1 and Figure 2 As shown, the housing 1 is provided with a first slide groove 13 adapted to the drive member 4. The drive member 4 passes through the first slide groove 13 and connects to the locking structure 3. The drive member 4 slides along the first slide groove 13 under force to drive the replacement core assembly 2 to slide. The first slide groove 13 is provided on the housing 1, and the length direction of the first slide groove 13 is consistent with the sliding direction of the replacement core assembly 2, ensuring that the drive member 4 can slide along a predetermined path and avoiding deviation or jamming caused by improper operation, thereby achieving precise control of the sliding of the replacement core assembly 2. The first slide groove 13 also serves to hide the locking structure 3. The locking structure 3 is installed inside the housing 1. The drive member 4 passes through the first slide groove 13 and is connected to the locking structure 3, transmitting the force applied by the user to the locking structure 3 to realize the unlocking and locking operations of the locking structure 3. Through the design of the first slide groove 13, the locking structure 3 is hidden inside the housing 1, improving the reliability and durability of the product.

[0038] More specifically, such as Figure 3 and Figure 6 As shown, the locking structure 3 is provided with a limiting part 34 adapted to the driving member 4. The driving member 4 is connected to the limiting part 34 to limit the connection with the replacement core assembly 2. By providing the limiting part 34 on the locking structure 3, the limiting part 34 achieves a stable mechanical connection through the adaptation design with the driving member 4, thereby limiting the driving member 4 on the replacement core assembly 2 and preventing the driving member 4 from disengaging from the replacement core assembly 2. This connection can be a snap, groove, protrusion or other form of structure, ensuring that the driving member 4 always maintains the connection with the replacement core assembly 2 during the sliding process, improving the reliability of operation, reducing operational errors caused by external force interference, and improving the stability of the entire structure.

[0039] More specifically, such as Figures 1 to 3As shown, a protective cap 5 is rotatably mounted on the housing 1. The protective cap 5 opens and closes the opening 11 by rotating. The transfer core assembly 2 is provided with a linkage part 22 that abuts against the protective cap 5. The transfer core assembly 2 slides under force through the linkage part 22 to drive the protective cap 5 to rotate. The protective cap 5 is mounted on the housing 1 by rotation. The protective cap 5 opens and closes the opening 11 on the housing 1 by rotating. The linkage part 22 is provided on the transfer core assembly 2. The main function of the linkage part 22 is to transmit the sliding force of the transfer core assembly 2 to the protective cap 5, driving the protective cap 5 to rotate. The rotation of the protective cap 5 is linked with the sliding action of the transfer core assembly 2 through the linkage part 22. The user drives the transfer core assembly 2 to slide through the drive member 4. The transfer core assembly 2 slides so that the linkage part 22 abuts against the protective cap 5, thereby driving the protective cap 5 to rotate to open or close the opening 11. The user does not need to manually operate the protective cap 5. He / she can achieve the extension of the transfer head 21 and the automatic opening and closing of the protective cap 5 simply by sliding the drive member 4, making the operation more convenient and labor-saving.

[0040] More specifically, such as Figure 7 As shown, the linkage part 22 has a columnar protrusion structure, and the protective cap 5 is provided with a guide part 51 adapted to the linkage part 22. The linkage part 22 abuts against the guide part 51 to drive the protective cap 5 to rotate. The linkage part 22 with the columnar protrusion structure can stably and reliably abut against the protective cap 5 during the sliding of the core assembly 2. The guide part 51 is provided on the protective cap 5. The shape and size design of the guide part 51 can be closely matched with the columnar protrusion structure of the linkage part 22. The guide part 51 drives the protective cap 5 to rotate by cooperating with the linkage part 22. The linkage design reduces the risk of misoperation caused by manual operation of the protective cap 5. The abutment design between the linkage part 22 with the columnar protrusion structure and the adapted guide part 51 ensures stable force transmission, reduces operational errors caused by external force interference, and improves the stability of the entire structure.

[0041] More specifically, such as Figure 2 As shown, the housing 1 includes a first housing 14 and a second housing 15. The first housing 14 and the second housing 15 are detachably connected. The replacement core assembly 2 is installed inside the first housing 14. The second housing 15 is connected to the first housing 14 to confine the replacement core assembly 2 within the first housing 14. The housing 1 is composed of the first housing 14 and the second housing 15, which are assembled together by a detachable connection. The connection between the first housing 14 and the second housing 15 can be a snap-fit ​​connection, a plug-in connection, or other mechanical connection methods to ensure that the first housing 14 and the second housing 15 can be stably connected during normal use, while facilitating disassembly and assembly by the user. The replacement core assembly 2 is installed between the first housing 14 and the second housing 15, making the replacement core assembly 2 replaceable. When the replacement core assembly 2 needs to be replaced or maintained, the user can easily disassemble the second housing 15 and remove the replacement core assembly 2. The split design makes the replacement of the replacement core assembly 2 more convenient and reduces the product's usage cost.

[0042] More specifically, such as Figure 8 As shown, the replacement core assembly 2 includes a replacement core holder 23 and a winding and unwinding mechanism 24. The replacement core holder 23 and the winding and unwinding mechanism 24 are detachably connected. The replacement core holder 23 is the basic structural part of the replacement core assembly 2, providing support and positioning functions for the winding and unwinding mechanism 24. The winding and unwinding mechanism 24 is the core part of the replacement core assembly 2, responsible for winding and unwinding the film tape. The replacement core holder 23 and the winding and unwinding mechanism 24 are connected by a detachable connection, ensuring a stable connection during normal use. At the same time, it is easy to disassemble and assemble, allowing the replacement core holder 23 and the winding and unwinding mechanism 24 to be manufactured and maintained independently. After the original film tape is used up, the winding and unwinding mechanism 24 can be directly removed for replacement without replacing the entire replacement core assembly 2, which saves on usage costs. After the replacement core holder 23 and the winding and unwinding mechanism 24 are connected, they can be locked by a buckle. The detachable connection design makes the replacement of the winding and unwinding mechanism 24 more convenient and labor-saving.

[0043] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.

Claims

1. A coating transfer tool, comprising a housing (1) and a core assembly (2), wherein the core assembly (2) is slidably mounted within the housing (1), the core assembly (2) is provided with a transfer head (21), and the housing (1) is provided with an opening (11) for sliding and extending the transfer head (21), characterized in that, The replacement core assembly (2) is provided with a locking structure (3), and the inner wall of the housing (1) is provided with multiple locking positions (12) adapted to the locking structure (3). A driving member (4) is slidably installed on the housing (1). The driving member (4) is connected to the locking structure (3) to drive the replacement core assembly (2) to slide. The locking structure (3) is connected to the locking position (12) to make the replacement core assembly (2) slide and lock. When the driving member (4) is subjected to force, the locking structure (3) is disengaged from the current locking position (12) by the force of the driving member (4) so ​​that the replacement core assembly (2) slides and unlocks.

2. The coating transfer tool according to claim 1, characterized in that, The locking structure (3) is provided with an elastic positioning part (31) adapted to the locking position (12). The elastic positioning part (31) engages with the locking position (12) to make the replacement core assembly (2) slide locked. The driving member (4) is provided with an unlocking part (41) adapted to the elastic positioning part (31). The driving member (4) is subjected to force through the unlocking part (41) and acts on the elastic positioning part (31). The elastic positioning part (31) is subjected to force and undergoes elastic deformation to disengage from the locking position (12) so that the replacement core assembly (2) slides unlocked.

3. The coating transfer tool according to claim 2, characterized in that, The unlocking part (41) has a trapezoidal groove structure.

4. A coating transfer tool according to claim 2, characterized in that, The locking structure (3) includes a mounting base (32) and an elastic element (33). The mounting base (32) is disposed on the core assembly (2), the elastic element (33) is installed in the mounting base (32), and the elastic positioning part (31) is disposed on the elastic element (33).

5. A coating transfer tool according to claim 1, characterized in that, The housing (1) is provided with a first slide groove (13) adapted to the drive member (4). The drive member (4) passes through the first slide groove (13) and is connected to the locking structure (3). The drive member (4) is subjected to force and slides along the first slide groove (13) to drive the core assembly (2) to slide.

6. A coating transfer tool according to claim 1 or 5, characterized in that, The locking structure (3) is provided with a limiting part (34) adapted to the driving member (4), and the driving member (4) is connected to the limiting part (34) to limit the connection with the core assembly (2).

7. A coating transfer tool according to claim 1, characterized in that, The housing (1) is rotatably mounted with a protective cap (5), which opens and closes the opening (11) by rotating. The core assembly (2) is provided with a linkage part (22) that abuts against the protective cap (5). The core assembly (2) is slidably driven by the linkage part (22) to drive the protective cap (5) to rotate.

8. A coating transfer tool according to claim 7, characterized in that, The linkage part (22) has a columnar protrusion structure, and the protective cap (5) is provided with a guide part (51) adapted to the linkage part (22). The linkage part (22) and the guide part (51) abut against each other to drive the protective cap (5) to rotate.

9. A coating transfer tool according to claim 1, characterized in that, The housing (1) includes a first housing (14) and a second housing (15), the first housing (14) and the second housing (15) being detachably connected, the replacement core assembly (2) being installed inside the first housing (14), and the second housing (15) being connected to the first housing (14) to confine the replacement core assembly (2) inside the first housing (14).

10. A coating transfer tool according to claim 1, characterized in that, The core assembly (2) includes a core holder (23) and a winding mechanism (24), wherein the core holder (23) and the winding mechanism (24) are detachably connected.