Coating film transfer printing tool

Abstract

The utility model discloses a coating transfer printing tool which comprises a shell, the shell is provided with a first containing cavity, the coating transfer printing tool further comprises a first replacement core assembly and a second replacement core assembly, one end of the shell is provided with a first opening, the other end of the shell is provided with a second opening, the first opening, the first containing cavity and the second opening are sequentially communicated, and the first containing cavity is communicated with the second opening. The first replacement core assembly and the second replacement core assembly penetrate through the first opening to enter the first containing cavity, the head of the first replacement core assembly penetrates through the second opening to stretch out, and the first opening and the second opening are matched to limit the first replacement core assembly and the second replacement core assembly in the first containing cavity. The second replacement core assembly can be stressed to push the first replacement core assembly to extend out of the second opening and break away from the first containing cavity, the shell can carry at least two replacement core assemblies, and core replacement and disassembly are easy and labor-saving.

Description

Technical Field

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

[0002] A correction tape, also known as a coating transfer tool, is a tool that transfers the coating from a tape onto the surface of another object. Similar to correction fluid, it can be applied to paper to cover up mistakes, allowing for immediate rewriting and providing convenience for study and work. A correction tape transfer tool mainly consists of a housing and a replacement core assembly installed inside the housing. Currently, housings are divided into integrated and separate types. Integrated housings cannot be disassembled, making it impossible to replace the core assembly, and the correction tape must be discarded along with the housing after use, resulting in significant resource waste. Separate housings typically have a detachable connection between the first and second housings, allowing users to remove and replace the core assembly by disassembling them. The first and second housings are tightly fitted or snap-fitted together via connecting posts and holes, which is not only laborious and cumbersome to assemble and disassemble, but the snaps also have a relatively short lifespan due to frequent use. For example, utility model patent CN218430677U discloses a self-rotating double-headed correction tape, comprising a tubular cylindrical body, a first core and a second core disposed at both ends of the cylindrical body, a positioning structure for connecting the first core and the second core, and a limiting structure for restricting the movement of the first core and the second core along the axial direction of the cylindrical body. The first core and the second core are respectively disposed in opposite directions within the cylindrical body, and both are capable of axial rotation relative to the cylindrical body. In this technical solution, the two ends of the cylindrical body are... The solution involves connecting the first and second cores using a positioning structure. When one core is used up, the other core is switched to, allowing for quick core replacement. However, this solution suffers from several drawbacks. The first and second cores are structurally identical, making it difficult for users to distinguish between them. This leads to confusion and uncertainty about their usage status, hindering timely core replacement. Furthermore, both the first and second cores are positioned by snapping together with the positioning structure, making core replacement laborious and cumbersome. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a coating transfer tool, which uses an integrated housing to accommodate a first replacement core assembly and a second replacement core assembly. The housing can carry at least two replacement core assemblies, and when the first replacement core assembly is used up, the second replacement core assembly can be pushed by force to remove the first replacement core assembly from the housing to achieve core replacement. Core replacement is relatively simple and labor-saving.

[0004] This application provides a coating transfer tool, including a housing with a first receiving cavity, and a first replacement core assembly and a second replacement core assembly. One end of the housing has a first opening, and the other end of the housing has a second opening. The first opening, the first receiving cavity, and the second opening are sequentially connected. The first replacement core assembly and the second replacement core assembly both pass through the first opening to enter the first receiving cavity. The head of the first replacement core assembly extends through the second opening. The first opening and the second opening cooperate to confine the first replacement core assembly and the second replacement core assembly within the first receiving cavity. When the second replacement core assembly is subjected to force, it can push the first replacement core assembly to extend out of the second opening and disengage from the first receiving cavity.

[0005] In this technical solution, the housing accommodates and installs the first and second replacement core components through a first receiving cavity. Compared to conventional coating transfer instruments, the coating transfer instrument of this application can carry at least two replacement core components. After the first replacement core component is used up, the second replacement core component can be directly replaced, extending its service life. Furthermore, a first opening and a second opening are respectively provided at both ends of the housing, allowing both the first and second replacement core components to pass through the first opening and enter the first receiving cavity for storage. The head of the first replacement core component protrudes through the second opening for user use. The first opening mates with the tail of the second replacement core component, and the second opening mates with the head of the first replacement core component, thereby confining the first and second replacement core components within the first receiving cavity. This prevents the first and second replacement core components from detaching from the housing during use and affecting the performance. In this application, the first and second replacement core components have identical structures, and the terms "first" and "second" are only used to distinguish the installation order of the replacement core components, not to represent the quantity. When the first replacement core component needs to be replaced... By applying force to the second replacement component, the user pushes the first replacement component out of the second opening and out of the first receiving cavity. The head of the second replacement component extends through the second opening for user use. The removed first replacement component can be reinserted into the first receiving cavity through the first opening. Alternatively, a new first replacement component or a new second replacement component can be inserted into the first receiving cavity through the first opening, thus completing the replacement and ensuring the normal use of the second replacement component. Conventional replacement procedures require four steps: opening the casing, removing the old replacement component, inserting the new replacement component, and closing the casing. However, in this application, the casing is a one-piece structure that does not require disassembly. The rear replacement component in the first receiving cavity pushes the front replacement component out of the first receiving cavity. The rear replacement component refers to the replacement component closer to the first opening in the first receiving cavity, and the front replacement component refers to the replacement component closer to the second opening in the first receiving cavity. The user only needs to push the rear replacement component, without disassembling the casing, completing the replacement process in one step. Replacement is simple and effortless.

[0006] As an improvement, the first opening is provided with a first elastic structure, which is adapted to the tail ends of both the first and second replacement core assemblies. The first elastic structure abuts against the tail end of the second replacement core assembly to limit the position of both assemblies. In this technical solution, the housing, through the first opening, engages with the tail end of the subsequent replacement core assembly to limit the position of the replacement core assembly within the first receiving cavity, preventing the replacement core assembly from detaching from the first receiving cavity during use. The first opening, through the elastic action of the first elastic structure, allows for the insertion and limiting of either the first or second replacement core assembly, resulting in a simple and reliable structure.

[0007] As an improvement, the first elastic structure is a spring sheet structure, with a first limiting buckle at its end. The first limiting buckle has a first guide slope along the entry direction of the first and second replacement core assemblies. In this technical solution, the first elastic structure is a spring sheet structure with a first limiting buckle. The spring sheet structure is simple, and the first elastic structure achieves a limiting function by abutting against the tail of the rear replacement core assembly through the first limiting buckle, allowing the replacement core assembly in the first accommodating cavity to disengage from the limiting position. The structure is simple and reliable. By providing a first guide slope on the first limiting buckle, and by providing the first guide slope along the entry direction of the first and second replacement core assemblies, the first or second replacement core assembly will be guided by the first guide slope when inserted into the first opening, making insertion easier and smoother.

[0008] As an improvement, the second opening is provided with a second elastic structure. This second elastic structure is adapted to the heads of both the first and second replacement core assemblies. The second elastic structure abuts against the head of the first replacement core assembly to limit the movement of both assemblies. In this technical solution, the housing, through the second opening, engages with the head of the preceding replacement core assembly to limit the movement of the replacement core assembly within the first accommodating cavity, preventing the replacement core assembly from detaching from the first accommodating cavity during use. The second opening, through the elastic action of the second elastic structure, allows either the first or second replacement core assembly to be forced out of the first accommodating cavity. The structure is simple and reliable.

[0009] As an improvement, the second elastic structure is a spring sheet structure, with a second limiting buckle at its end. The second limiting buckle has a second guide slope along the disengagement direction of the first and second replacement core assemblies. In this technical solution, the second elastic structure is a spring sheet structure with a second limiting buckle. The spring sheet structure is simple, and the second elastic structure uses the second limiting buckle to abut against the head of the preceding replacement core assembly, thereby achieving a limiting function. This allows the replacement core assembly in the first accommodating cavity to disengage and be limited. The structure is simple and reliable. By providing a second guide slope on the second limiting buckle, and with the second guide slope along the disengagement direction of the first and second replacement core assemblies, the first or second replacement core assembly will be guided by the second guide slope when it is forced to disengage from the second opening, making the old core removal easier and smoother.

[0010] As an improvement, the head of the first replacement core assembly is provided with a first protrusion adapted to the second limiting buckle, and the first protrusion abuts against the second limiting buckle; the head of the second replacement core assembly is provided with a second protrusion adapted to the second limiting buckle, and the second protrusion abuts against the second limiting buckle. In this technical solution, when the head of the first replacement core assembly extends through the second opening, the first protrusion abuts against the second limiting buckle, thereby confining the first replacement core assembly within the first receiving cavity, allowing the replacement core assembly within the first receiving cavity to disengage from the limiting position. When the head of the second replacement core assembly extends through the second opening, the second protrusion abuts against the second limiting buckle, thereby confining the second replacement core assembly within the second receiving cavity, allowing the replacement core assembly within the first receiving cavity to disengage from the limiting position. The limiting structure is simple and reliable.

[0011] As an improvement, the housing is tubular, the first accommodating cavity is cylindrical, and the first and second replacement core assemblies are installed in the first accommodating cavity along a straight line. In this technical solution, the housing is tubular, allowing the first and second replacement core assemblies to be alternately installed in the first accommodating cavity. The housing is also longer to accommodate at least two replacement core assemblies, and has a better aesthetic appearance, making it more suitable for users to hold and use.

[0012] As an improvement, the outer walls of both the first and second replacement core assemblies are cylindrical, and both the first and second replacement core assemblies can rotate circumferentially within the first accommodating cavity. In this technical solution, the first accommodating cavity is cylindrical, and the outer walls of both the first and second replacement core assemblies are cylindrical, so that the first and second replacement core assemblies are better suited to the first accommodating cavity. Furthermore, the cylindrical first and second replacement core assemblies can rotate circumferentially within the cylindrical first accommodating cavity, allowing users to adjust the replacement core assemblies according to their usage needs, thereby adjusting the deflection angle of the correction head and adapting to various usage requirements.

[0013] As an improvement, the first replacement core assembly has a second receiving cavity at its tail, through which the first replacement core assembly avoids obstructing the head of the second replacement core assembly; the second replacement core assembly has a third receiving cavity at its tail, through which the first replacement core assembly avoids obstructing the head of the first replacement core assembly. In this technical solution, the first replacement core assembly, pushed by the second replacement core assembly, slides out of the second opening to disengage from the first receiving cavity. If the head of the second replacement core assembly directly abuts against the tail of the first replacement core assembly, it is easy to damage the correction head of the second replacement core assembly. This solution, by providing a second receiving cavity at the tail of the first replacement core assembly, when the first and second replacement core assemblies are sequentially inserted into the first receiving cavity through the first opening, the head of the second replacement core assembly is inserted into the second receiving cavity. The first replacement core assembly avoids obstructing the head of the second replacement core assembly through the second receiving cavity, thereby allowing the second replacement core assembly to be forcefully pushed by the whole assembly to slide out of the second opening, protecting the head of the second replacement core assembly and extending its service life; similarly, when the first replacement core assembly disengages from the first receiving cavity... The second replacement core assembly slides to the second opening, and is inserted through the first opening into the first replacement core assembly or another first replacement core assembly or another second replacement core assembly, thereby pushing the head of the second replacement core assembly out of the second opening. A third receiving cavity is provided at the tail of the second replacement core assembly, and the second replacement core assembly is the front replacement core assembly in the first receiving cavity. When the first replacement core assembly or another first replacement core assembly or another second replacement core assembly is inserted through the first opening into the first receiving cavity, the first replacement core assembly or another first replacement core assembly or another second replacement core assembly is the rear replacement core assembly in the first receiving cavity. The head of the rear replacement core assembly is inserted into the third receiving cavity so that the front replacement core assembly can be pushed as a whole, thereby protecting the head of the rear replacement core assembly and extending its service life.

[0014] As an improvement, the head of the first replacement core assembly is detachably connected to a first protective sleeve, and the head of the second replacement core assembly is detachably connected to a second protective sleeve. In this technical solution, by providing a first protective sleeve to the head of the first replacement core assembly, the correction head of the first replacement core assembly is protected, thereby extending its service life. Similarly, by providing a second protective sleeve to the head of the second replacement core assembly, the correction head of the second replacement core assembly is protected, thereby extending its service life. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a coating transfer tool according to this application.

[0016] Figure 2 This is an exploded view of a coating transfer tool according to this application.

[0017] Figure 3 This is a cross-sectional view of the shell structure in this application.

[0018] Figure 4This is a cross-sectional schematic diagram of a coating transfer tool according to this application.

[0019] Figure 5 For this application Figure 4 A magnified view of a portion of point A in the middle.

[0020] Figure 6 For this application Figure 5 A magnified view of a portion of point B in the middle.

[0021] As shown in the figure: 1. Housing; 11. First accommodating cavity; 12. First opening; 121. First elastic structure; 122. First guide slope; 123. First limiting buckle; 13. Second opening; 131. Second elastic structure; 132. Second guide slope; 133. Second limiting buckle; 2. First replacement core assembly; 21. First boss; 3. Second replacement core assembly; 31. Second boss. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] like Figures 1 to 6As shown, this application discloses a coating transfer fixture, including a housing 1, which has a first receiving cavity 11, and also includes a first core assembly 2 and a second core assembly 3. One end of the housing 1 has a first opening 12, and the other end has a second opening 13. The first opening 12, the first receiving cavity 11, and the second opening 13 are sequentially connected. Both the first core assembly 2 and the second core assembly 3 pass through the first opening 12 to enter the first receiving cavity 11. The head of the first core assembly 2 protrudes through the second opening 13. The first opening 12 and the second opening 13 cooperate to confine the first core assembly 2 and the second core assembly 3 within the first receiving cavity 11. When the second core assembly 3 is subjected to force, it can push the first core assembly 2 out of the second opening 13 and detach it from the first receiving cavity 11. The housing 1 accommodates and installs the first core assembly 2 and the second core assembly 3 through the first receiving cavity 11. Compared to conventional coating transfer fixtures, the coating transfer fixture of this application can carry at least two core assemblies. After the first core assembly 2 is used... The second replacement core assembly 3 can be directly replaced for use, extending its service life. On the other hand, a first opening 12 and a second opening 13 are respectively provided at both ends of the housing 1, so that the first replacement core assembly 2 and the second replacement core assembly 3 can both pass through the first opening 12 to enter the first receiving cavity 11 for storage. The head of the first replacement core assembly 2 extends out through the second opening 13 for user use. The first opening 12 cooperates with the tail of the second replacement core assembly 3, and the second opening 13 cooperates with the head of the first replacement core assembly 2, thereby confining the first replacement core assembly 2 and the second replacement core assembly 3 within the first receiving cavity 11, preventing the first replacement core assembly 2 and the second replacement core assembly 3 from detaching from the housing 1 during use and affecting the use effect. In this application, the head of the first replacement core assembly 2 and the second replacement core assembly 3 refers to the end with the correction head, and the tail of the replacement core assembly refers to the end without the correction head. The first and second are only used to distinguish the installation order of the replacement core assemblies and do not represent the quantity. There is at least one first replacement core assembly 2 and the second replacement core assembly 3.

[0027] When the first replacement core assembly 2 needs to be replaced, the user applies force to the second replacement core assembly 3, causing the second replacement core assembly 3 to push the first replacement core assembly 2 out through the second opening 13 and detach from the first receiving cavity 11. The head of the second replacement core assembly 3 extends through the second opening 13 for the user to use. The removed first replacement core assembly 2 can be reinstalled into the first receiving cavity 11 through the first opening 12. Alternatively, a new first replacement core assembly 2 or a new second replacement core assembly 3 can be installed into the first receiving cavity 11 through the first opening 12, thereby completing the core replacement and ensuring the second replacement core assembly... 3. It can be used normally. The conventional replacement process requires four steps: opening the outer shell, taking out the old replacement, inserting the new replacement, and closing the outer shell. However, this application uses the rear replacement component in the first accommodating cavity 11 to push the front replacement component out of the first accommodating cavity 11. The rear replacement component refers to the replacement component in the first accommodating cavity 11 that is closer to the first opening 12, and the front replacement component refers to the replacement component in the first accommodating cavity 11 that is closer to the second opening 13. The user only needs to push the rear replacement component, without disassembling the outer shell 1. The replacement process can be completed in one step, making replacement simple and effortless.

[0028] More specifically, such as Figure 1 and Figure 2 As shown, the first opening 12 is provided with a first elastic structure 121. The first elastic structure 121 is adapted to the tail of the first replacement core assembly 2 and the second replacement core assembly 3. The first elastic structure 121 abuts against the tail of the second replacement core assembly 3 to limit the first replacement core assembly 2 and the second replacement core assembly 3. The first replacement core assembly 2 and the second replacement core assembly 3 pass through the first opening 12 in sequence to enter the first receiving cavity 11. The housing 1 cooperates with the tail of the subsequent replacement core assembly through the first opening 12 to limit the replacement core assembly in the first receiving cavity 11, preventing the replacement core assembly from leaving the first receiving cavity 11 through the first opening 12 during use. The first opening 12 can allow the first replacement core assembly 2 or the second replacement core assembly 3 to be inserted and limited through the elastic action of the first elastic structure 121. The structure is simple and reliable.

[0029] More specifically, such as Figure 3 , Figure 4 and Figure 6As shown, the first elastic structure 121 is a spring sheet structure, and the end of the spring sheet structure is provided with a first limiting buckle 123. The first elastic structure 121 is a spring sheet structure with a first limiting buckle 123. The spring sheet structure is simple. The first elastic structure 121 abuts against the tail of the rear replacement core assembly through the first limiting buckle 123 to achieve the limiting function, so that the replacement core assembly in the first receiving cavity 11 is disengaged from the limiting position. The structure is simple and reliable. The first limiting buckle 123 is provided with a first guide slope 122 along the entry direction of the first replacement core assembly 2 and the second replacement core assembly 3, so that when the first replacement core assembly 2 or the second replacement core assembly 3 is inserted into the first opening 12, it will be guided by the first guide slope 122, making the insertion easier and smoother.

[0030] More specifically, such as Figure 1 and Figure 2 As shown, the second opening 13 is provided with a second elastic structure 131. The second elastic structure 131 is adapted to the heads of the first replacement core assembly 2 and the second replacement core assembly 3. The second elastic structure 131 abuts against the head of the first replacement core assembly 2 to limit the first replacement core assembly 2 and the second replacement core assembly 3. The housing 1 cooperates with the head of the first replacement core assembly through the second opening 13 to limit the replacement core assembly in the first receiving cavity 11, preventing the replacement core assembly from leaving the first receiving cavity 11 through the second opening 13 during use. The second opening 13 can allow the first replacement core assembly 2 or the second replacement core assembly 3 to be forced to leave the first receiving cavity 11 through the elastic action of the second elastic structure 131. The structure is simple and reliable.

[0031] More specifically, such as Figure 3 , Figure 4 and Figure 5 As shown, the first elastic structure 121 is a spring sheet structure, and the end of the spring sheet structure is provided with a first limiting buckle 123. The first elastic structure 121 is a spring sheet structure with a first limiting buckle 123. The spring sheet structure is simple. The first elastic structure 121 abuts against the tail of the rear replacement core assembly through the first limiting buckle 123 to achieve the limiting function, so that the replacement core assembly in the first receiving cavity 11 is disengaged from the limiting position. The structure is simple and reliable. The first limiting buckle 123 is provided with a first guide slope 122 along the entry direction of the first replacement core assembly 2 and the second replacement core assembly 3, so that when the first replacement core assembly 2 or the second replacement core assembly 3 is inserted into the first opening 12, it will be guided by the first guide slope 122, making the insertion easier and smoother.

[0032] More specifically, such as Figure 2 , Figure 4 and Figure 5As shown, the head of the first replacement core assembly 2 is provided with a first protrusion 21 that is adapted to the second limiting buckle 133. The first protrusion 21 abuts against the second limiting buckle 133 to limit the first replacement core assembly 2. The head of the second replacement core assembly 3 is provided with a second protrusion 31 that is adapted to the second limiting buckle 133. The second protrusion 31 abuts against the second limiting buckle 133 to limit the second replacement core assembly 3. When the head of the first replacement core assembly 2 extends through the second opening 13, the first protrusion 21 abuts against the second limiting buckle 133, thereby limiting the first replacement core assembly 2 within the first receiving cavity 11, causing the replacement core assembly within the first receiving cavity 11 to disengage from the limiting position. When the head of the second replacement core assembly 3 extends through the second opening 13, the second protrusion 31 abuts against the second limiting buckle 133, thereby limiting the second replacement core assembly 3 within the second receiving cavity, causing the replacement core assembly within the first receiving cavity 11 to disengage from the limiting position. The limiting structure is simple and reliable.

[0033] More specifically, such as Figure 1 and Figure 3 As shown, the housing 1 is cylindrical, the first accommodating cavity 11 is cylindrical, and the first replacement core assembly 2 and the second replacement core assembly 3 are installed in the first accommodating cavity 11 along a straight line. The housing 1 is cylindrical so that the first replacement core assembly 2 and the second replacement core assembly 3 can be alternately installed in the first accommodating cavity 11. The length of the housing 1 is relatively long so as to accommodate at least two replacement core assemblies, and it is aesthetically pleasing and more suitable for users to hold and use.

[0034] More specifically, such as Figures 1 to 3 As shown, the outer walls of both the first replacement core assembly 2 and the second replacement core assembly 3 are cylindrical. Both the first replacement core assembly 2 and the second replacement core assembly 3 can rotate circumferentially within the first receiving cavity 11. The cylindrical shape of the first receiving cavity 11 and the cylindrical outer walls of both the first replacement core assembly 2 and the second replacement core assembly 3 make them more compatible with the first receiving cavity 11. Furthermore, the cylindrical first replacement core assembly 2 and the second replacement core assembly 3 can rotate circumferentially within the cylindrical first receiving cavity 11. Users can adjust the replacement core assemblies according to their own usage needs to adjust the deflection angle of the correction head, thus adapting to various usage requirements.

[0035] More specifically, the tail of the first replacement core assembly 2 is provided with a second receiving cavity. The first replacement core assembly 2 avoids the head of the second replacement core assembly 3 through the second receiving cavity. The first replacement core assembly 2 is pushed out of the second opening 13 by the second replacement core assembly 3 to disengage from the first receiving cavity 11. If the head of the second replacement core assembly 3 directly abuts against the tail of the first replacement core assembly 2, it is easy to damage the correction head of the second replacement core assembly 3. In this solution, by providing a second receiving cavity at the tail of the first replacement core assembly 2, when the first replacement core assembly 2 and the second replacement core assembly 3 are sequentially inserted into the first receiving cavity 11 through the first opening 12, the head of the second replacement core assembly 3 is inserted into the second receiving cavity. The first replacement core assembly 2 avoids the head of the second replacement core assembly 3 through the second receiving cavity, so that the second replacement core assembly 3 is subjected to force to push the first replacement core assembly 2 out of the second opening 13 as a whole, protecting the head of the second replacement core assembly 3 and extending its service life.

[0036] More specifically, the tail of the second replacement core assembly 3 is provided with a third receiving cavity. The head of the first replacement core assembly 2 is obstructed by the third receiving cavity. When the first replacement core assembly 2 disengages from the first receiving cavity 11, the second replacement core assembly 3 slides to the second opening 13 and is inserted through the first opening 12, thereby pushing the head of the second replacement core assembly 3 out of the second opening 13. The third receiving cavity is provided at the tail of the second replacement core assembly 3. The second replacement core assembly 3 is the front replacement core assembly within the first accommodating cavity 11. When the first replacement core assembly 2 or another first replacement core assembly 2 or another second replacement core assembly 3 is inserted into the first accommodating cavity 11 through the first opening 12, the first replacement core assembly 2 or another first replacement core assembly 2 or another second replacement core assembly 3 becomes the rear replacement core assembly within the first accommodating cavity 11. The head of the rear replacement core assembly is inserted into the third accommodating cavity so as to push the front replacement core assembly as a whole, thereby protecting the head of the rear replacement core assembly and extending its service life.

[0037] More specifically, the head of the first replacement core assembly 2 is detachably connected to a first protective sleeve, and the head of the second replacement core assembly 3 is detachably connected to a second protective sleeve. By setting the first protective sleeve on the head of the first replacement core assembly 2, the correction head of the first replacement core assembly 2 is protected, thereby extending its service life. Similarly, by setting the second protective sleeve on the head of the second replacement core assembly 3, the correction head of the second replacement core assembly 3 is protected, thereby extending its service life.

[0038] 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), wherein the housing (1) is provided with a first receiving cavity (11), characterized in that, It also includes a first replacement core assembly (2) and a second replacement core assembly (3). One end of the housing (1) is provided with a first opening (12), and the other end of the housing (1) is provided with a second opening (13). The first opening (12), the first accommodating cavity (11), and the second opening (13) are connected in sequence. The first replacement core assembly (2) and the second replacement core assembly (3) both pass through the first opening (12) to enter the first accommodating cavity (11). The head of the first replacement core assembly (2) extends out through the second opening (13). The first opening (12) and the second opening (13) cooperate to confine the first replacement core assembly (2) and the second replacement core assembly (3) within the first accommodating cavity (11). When the second replacement core assembly (3) is subjected to force, it can push the first replacement core assembly (2) to extend out of the second opening (13) and detach from the first accommodating cavity (11).

2. The coating transfer tool according to claim 1, characterized in that, The first opening (12) is provided with a first elastic structure (121), which is adapted to the tail of the first core assembly (2) and the second core assembly (3). The first elastic structure (121) abuts against the tail of the second core assembly (3) to limit the first core assembly (2) and the second core assembly (3).

3. A coating transfer tool according to claim 2, characterized in that, The first elastic structure (121) is a spring sheet structure, and the end of the spring sheet structure is provided with a first limiting buckle (123). The first limiting buckle (123) is provided with a first guide slope (122) along the entry direction of the first core assembly (2) and the second core assembly (3).

4. A coating transfer tool according to claim 1 or 2, characterized in that, The second opening (13) is provided with a second elastic structure (131), which is adapted to the head of the first core assembly (2) and the second core assembly (3). The second elastic structure (131) abuts against the head of the first core assembly (2) to limit the first core assembly (2) and the second core assembly (3).

5. A coating transfer tool according to claim 4, characterized in that, The second elastic structure (131) is a spring sheet structure, and the end of the spring sheet structure is provided with a second limiting buckle (133). The second limiting buckle (133) is provided with a second guide slope (132) along the disengagement direction of the first core assembly (2) and the second core assembly (3).

6. A coating transfer tool according to claim 5, characterized in that, The head of the first replacement core assembly (2) is provided with a first protrusion (21) that is adapted to the second limiting buckle (133), and the first protrusion (21) abuts against the second limiting buckle (133); the head of the second replacement core assembly (3) is provided with a second protrusion (31) that is adapted to the second limiting buckle (133), and the second protrusion (31) abuts against the second limiting buckle (133).

7. A coating transfer tool according to claim 1, characterized in that, The housing (1) is in the shape of a cylindrical tube, the first accommodating cavity (11) is in the shape of a cylinder, and the first core assembly (2) and the second core assembly (3) are installed in the first accommodating cavity (11) along a straight line.

8. A coating transfer tool according to claim 7, characterized in that, The outer walls of the first core assembly (2) and the second core assembly (3) are both cylindrical, and both the first core assembly (2) and the second core assembly (3) can rotate circumferentially within the first accommodating cavity (11).

9. A coating transfer tool according to claim 1, characterized in that, The first replacement core assembly (2) is provided with a second accommodating cavity at its tail end, through which the first replacement core assembly (2) avoids the head of the second replacement core assembly (3); the second replacement core assembly (3) is provided with a third accommodating cavity at its tail end, through which the first replacement core assembly (2) avoids the head of the first replacement core assembly (2).

10. A coating transfer tool according to claim 1 or 9, characterized in that, The head of the first replacement core assembly (2) is detachably connected to a first protective sleeve, and the head of the second replacement core assembly (3) is detachably connected to a second protective sleeve.

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