Replaceable core-replaceable correction tape with retractable pressure head

Abstract

The invention provides a correction tape with a retractable pressure head and a replaceable core, and relates to the field of stationery. The correction tape with the replaceable core and the retractable pressing head comprises a shell assembly, the correction tape replaceable core and a cover body assembly. The shell assembly is provided with a mounting cavity, and an extending opening and a dismounting opening which are communicated with the mounting cavity. The correction tape replacement core is installed in the installation cavity and provided with a fixing shell and a pressing head movably arranged on the fixing shell. The cover body assembly is installed on the disassembly and assembly opening and connected with the shell assembly, and the cover body assembly has an open state and a closed state. When the cover body assembly is in a closed state, the cover body assembly can seal the dismounting opening, and when the cover body assembly is in an open state, the correction tape replacement core can be dismounted from the dismounting opening. Wherein the cover body assembly and / or the shell body assembly are / is in transmission connection with the pressing head so as to drive the pressing head to stretch out of the stretching-out opening or retract from the stretching-out opening. When the pressing head is in the stretching or retracting state, the pressing head can be fixed relative to the fixing shell. The correction tape replacement core can be replaced, so that the use cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of stationery technology, and more specifically, to a correction tape with a retractable refillable insert. Background Technology

[0002] Correction tape is a stationery item used to correct writing errors. Its structure includes a housing, an unwinding reel, a rewinding reel, and a pressure head. The unwinding and rewinding reels are built into the housing, while the pressure head is installed at an opening in the housing. The tape from the unwinding reel passes over the end of the pressure head and connects to the rewinding reel.

[0003] During operation, the unwind reel releases the correction-coated tape, which is guided by the pressure head to adhere tightly to the paper. When a writing error comes into contact with the pressure head, the pressure causes the correction coating on the tape to peel off the base tape, accurately covering the mistake. At the same time, the rewind reel, through internal gear linkage, synchronously retrieves the blank base tape after the coating has been peeled off.

[0004] Most correction tapes on the market are currently designed for single use. For example, the pressure head of the patent with application number 201610955226.6 has the function of extending and retracting, which is relatively expensive. However, once the tape on the unwinding reel is used up, the entire correction tape cannot be used again, which makes the usage cost relatively high. Summary of the Invention

[0005] The present invention aims to provide a correction tape with a retractable indenter and replaceable core, which enables core replacement and thus reduces the cost of use.

[0006] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides a correction tape with a retractable indenter and replaceable core, comprising: The housing assembly is provided with a mounting cavity and an extension and disassembly port communicating with the mounting cavity; A correction tape replacement core is installed in the mounting cavity, and the correction tape replacement core has a fixed shell and a pressure head movably disposed in the fixed shell; A cover assembly is installed at the disassembly port and connected to the housing assembly, and the cover assembly has an open state and a closed state; When the cover assembly is in the closed state, the cover assembly can close the disassembly port; when the cover assembly is in the open state, the correction tape replacement core can be removed from the disassembly port. The cover assembly and / or the housing assembly are connected to the pressure head in a drive connection to drive the pressure head to extend out of the outlet or retract from the outlet; When the pressure head is extended or retracted, it can be fixed relative to the fixed shell.

[0007] In an optional embodiment, the correction tape replacement core further includes an unwinding reel and a winding reel. The fixing shell has an assembly cavity and an opening communicating with the assembly cavity. The fixing shell is provided with a snap-fit ​​structure and an unlocking structure corresponding to the snap-fit ​​structure. The pressure head is provided with a fixing structure that cooperates with the snap-fit ​​structure. The pressure head is movably mounted on the fixing shell. The pressure head has an extended state that extends out of the opening relative to the fixing shell and a retracted state that retracts into the assembly cavity. When the pressure head is in the extended state and / or the retracted state, the snap-fit ​​structure engages with the fixing structure to restrict the movement of the pressure head. The unwinding reel and the winding reel are disposed in the assembly cavity, and the tape from the unwinding reel is wound around the winding reel via the pressure head. The housing assembly and / or the cover assembly are provided with a driving part, which is connected to the unlocking structure in a transmission manner; When the cover assembly and / or the housing assembly drive the pressure head to extend out of the protrusion or retract from the protrusion, the driving unit can drive the unlocking structure to disengage the locking structure from the fixing structure.

[0008] In an optional embodiment, the fixing shell includes a first shell, the opening is disposed on the side wall of the first shell, the pressure head, the unwinding reel and the rewinding reel are all disposed in the first shell, and the first shell is installed in the mounting cavity; The snap-fit ​​structure includes a first snap-fit ​​boss protruding from the first housing. The unlocking structure includes a first unlocking boss protruding from the first housing. The fixing structure includes a first abutting boss disposed on the pressure head and cooperating with the first snap-fit ​​boss; Wherein, when the pressure head is in the extended state, the first engaging boss engages with the first abutting boss to restrict the pressure head from moving in the retracting direction; The cover assembly is rotatably disposed on the housing assembly, and the cover assembly is drive-connected to the pressure head; The driving part includes a first driving part disposed on the cover assembly and corresponding to the first unlocking protrusion; The cover assembly rotates relative to the housing assembly in a first direction. The first driving part can drive the first unlocking protrusion to disengage the first locking protrusion from the first abutting protrusion, and drive the pressure head to move from the extended state to the retracted state.

[0009] In an optional embodiment, the first driving part includes a first guide part protruding from the inner side of the cover assembly, and the guide surface of the first guide part is provided with a recessed first clearance groove. When the pressure head is in the extended state, the first unlocking boss is at least partially accommodated within the first clearance groove; When the cover assembly rotates relative to the housing assembly in the first direction, the first guide portion rotates relative to the first unlocking boss, causing the first unlocking boss to move out of the first clearance groove. During the process of the first unlocking boss moving out of the first clearance groove, the first unlocking boss causes the first locking boss to disengage from the first abutting boss.

[0010] In an optional embodiment, the first housing is provided with a first deformation groove in the area corresponding to the first snap-fit ​​protrusion and the first unlocking protrusion, and the first deformation groove forms a first deformation area enclosed by the first housing. During the process of the first unlocking protrusion moving out of the first clearance groove, the first guide portion can cause the first locking protrusion to deform the first deformation area, thereby moving the first locking protrusion to release it from the first abutting protrusion.

[0011] In an optional embodiment, the housing assembly includes a middle shell and a rotating cover, the mounting cavity is disposed in the middle shell, the disassembly port is formed on one side of the middle shell, and the mounting port is formed on the other side; The rotating cover is rotatably mounted on the mounting port, and the rotating cover is connected to the pressure head via a transmission. The fixed shell also includes a second shell, which is installed on the side of the first shell corresponding to the rotating cover, and together with the first shell, forms the assembly cavity; The snap-fit ​​structure further includes a second snap-fit ​​boss protruding from the second housing; The unlocking structure further includes a second unlocking boss protruding from the second housing; The fixing structure also includes a second abutting boss disposed on the pressure head and cooperating with the second snap-fit ​​boss; When the pressure head is in the retracted state, the second abutting boss engages with the second locking boss. The driving unit also includes a second driving unit disposed on the rotating cover and corresponding to the second unlocking protrusion; The rotating cover rotates relative to the middle shell in a second direction. The second driving part can drive the second unlocking boss to disengage the second locking boss from the second abutting boss, and drive the pressure head to move from the retracted state to the extended state.

[0012] In an optional embodiment, the second driving part includes a second guide part protruding from the inner side of the rotating cover, and the guide surface of the second guide part is provided with a recessed second clearance groove. When the pressure head is in the extended state, the second unlocking boss is at least partially accommodated within the first clearance groove; When the rotating cover rotates relative to the middle shell in the second direction, the second guide portion rotates relative to the second unlocking boss, causing the second unlocking boss to move out of the second clearance groove. During the process of the second unlocking boss moving out of the second clearance groove, the second unlocking boss can drive the second locking boss to disengage from the second abutting boss.

[0013] In an optional embodiment, the second housing is provided with a second deformation groove in the area corresponding to the second snap-fit ​​protrusion and the second unlocking protrusion, and the second deformation groove forms a second deformation area enclosed by the second housing; During the process of the second unlocking boss moving out of the second clearance groove, the second guide portion can cause the second unlocking boss to deform the second deformation area, thereby causing the second locking boss to move and disengage from the second abutting boss.

[0014] In an optional embodiment, the cover assembly includes a connecting shell and a flip cover. The middle shell is provided with a slide rail in the circumferential direction. The connecting shell is disposed in the slide rail. The rotating cover is connected to one side of the connecting shell. The flip cover is connected to the other side of the connecting shell through a pivot to flip open and close. The rotating cover, the connecting shell, and the flip cover can rotate synchronously relative to the middle shell. The first housing is provided with a first arc-shaped groove, and the pressure head is provided with a first slider. The first slider is slidably installed in the first arc-shaped groove, and the end of the first slider extends to the outside of the first housing. The inner side of the flip cover is provided with a first drive groove extending from the inside to the outside. When the flip cover is closed, the end of the first slider can be slidably installed in the first drive groove. During the rotation of the flip cover relative to the axis of the middle shell, the groove wall of the first drive groove can drive the slider to move along the first arc-shaped slide groove so that the pressure head moves between the extended state and the retracted state. When the pressure head is extended, the first slider abuts against one end of the outer side of the first drive groove, and the first unlocking boss is engaged in the first clearance groove.

[0015] In an optional embodiment, the cover assembly includes a connecting shell and a flip cover. The middle shell is provided with a slide rail in the circumferential direction. The connecting shell is disposed in the slide rail. The rotating cover is connected to one side of the connecting shell. The flip cover is connected to the other side of the connecting shell through a pivot to flip open and close. The rotating cover, the connecting shell, and the flip cover can rotate synchronously relative to the middle shell. The second housing is provided with a second arc-shaped groove, and the pressure head is provided with a second slider. The second slider is slidably installed in the second arc-shaped groove, and the end of the second slider extends to the outside of the second housing. The inner side of the rotating cover is provided with a second drive groove extending from the inside to the outside, and the end of the second slider is slidably installed in the second drive groove. During the rotation of the rotating cover relative to the middle shell, the groove wall of the second drive groove can drive the second slider to move along the second arc-shaped slide groove so that the pressure head moves between the extended state and the retracted state; When the pressure head is in the retracted state, the second slider abuts against one end of the inner side of the second drive groove, and the second unlocking boss is engaged in the second clearance groove.

[0016] The beneficial effects of the replaceable core correction tape with retractable indenter provided in this embodiment of the invention include: The correction tape with a retractable pressure head and replaceable core provided in this application includes a housing assembly, a correction tape core, and a cover assembly. By installing the cover assembly into the disassembly port and connecting it to the housing assembly, the cover assembly has open and closed states. This allows for convenient replacement of the correction tape core after use, improving user convenience and maintainability. Most importantly, this application ensures that the pressure head is fixed relative to the fixed housing when extended or retracted, facilitating the replacement of the correction tape core and preventing pressure head movement from affecting the replacement process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the retracted head of the correction tape with a retractable core provided in this embodiment, viewed from one angle. Figure 2This is a schematic diagram of the pressure head of the retractable correction tape provided in this embodiment, viewed from another perspective, in the retracted state. Figure 3 This is a schematic diagram of the indenter of the correction tape with retractable indenter provided in this embodiment, viewed from an extended state. Figure 4 This is a schematic diagram of the pressure head of the correction tape with retractable pressure head and replaceable core provided in this embodiment, viewed from another perspective in the extended state. Figure 5 A schematic diagram of the flip-top cover of the correction tape with retractable pressure head and replaceable core provided in this embodiment in the open state; Figure 6 This is a schematic diagram of the structure of the correction tape with a retractable pressure head and replaceable core provided in this embodiment, with the flip cover in the open state and the correction tape core in the removed state. Figure 7 This is a first-view exploded view of the correction tape with a retractable indenter core provided in this embodiment. Figure 8 Another exploded view of the correction tape with a retractable pressure head and replaceable core provided in this embodiment; Figure 9 This is a schematic diagram of the correction tape core of the replaceable core of the correction tape with a retractable pressure head provided in this embodiment. Figure 10 A partial structural schematic diagram of the correction tape core for the retractable correction tape core provided in this embodiment; Figure 11 Another partial structural schematic diagram of the correction tape core for the retractable correction tape core provided in this embodiment; Figure 12 A schematic diagram of the second housing structure of the correction tape core for the correction tape core with retractable pressure head provided in this embodiment; Figure 13 A schematic diagram of the flip-top structure of the correction tape with a retractable pressure head and replaceable core provided in this embodiment; Figure 14 This is a schematic diagram of the rotating cap structure of the correction tape with a retractable pressure head and replaceable core provided in this embodiment. Figure 15 This is a cross-sectional view of the flip cover of the correction tape with a retractable pressure head provided in this embodiment when the pressure head is in the retracted state. Figure 16 This is a cross-sectional view of the flip-top cover of the correction tape with a retractable indenter provided in this embodiment, in the extended state. Figure 17This is a cross-sectional view of the rotating cover of the correction tape with a retractable indenter provided in this embodiment when the indenter head is in the retracted state. Figure 18 This is a cross-sectional view of the rotating cover of the correction tape with retractable indenter provided in this embodiment when the indenter is in the extended state. Figure 19 This is a cross-sectional view of the pressure head of the retractable, replaceable core correction tape provided in this embodiment in the extended state at the middle shell.

[0019] Icons: 1000 - Correction tape with retractable core; 100 - Correction tape core; 110 - Fixing housing; 111 - Assembly cavity; 112 - Opening; 113 - Snap-fit ​​structure; 114 - Unlocking structure; 115 - First housing; 116 - First snap-fit ​​boss; 117 - First unlocking boss; 118 - First deformation groove; 119 - First deformation area; 120 - First segment; 121 - Second segment; 1 22-First guide ramp; 123-Second housing; 124-Second snap-fit ​​boss; 125-Second unlocking boss; 126-Second deformation groove; 127-Second deformation area; 128-Second guide ramp; 129-First arc-shaped slide groove; 130-Second arc-shaped slide groove; 140-Pressure head; 141-Fixing structure; 142-First abutting boss; 143-Second abutting boss; 144-First winding post; 1 45-First slider; 146-Second slider; 147-Second winding post; 148-Third winding post; 150-Unwinding reel; 160-Rewinding reel; 200-Housing assembly; 210-Middle shell; 211-Mounting cavity; 212-Extension opening; 213-Disassembly / assembly opening; 214-Mounting opening; 215-Mounting rib; 216-Slide rail; 230-Rotating cover; 231-Second drive unit; 232-Second guide rail 233-Second clearance groove; 234-Baffle; 235-Insertion hole; 236-Second drive groove; 300-Cover assembly; 310-Drive part; 311-First drive part; 312-First guide part; 313-First clearance groove; 320-Connecting shell; 321-Snap-fit ​​seat; 322-Adapter seat; 323-Connecting shaft; 330-Flip cover; 331-Snap-fit ​​structure; 332-First drive groove. Detailed Implementation

[0020] Correction tape is a stationery item used to correct writing errors. Its structure includes a casing, an unwinding reel, a rewinding reel, and a pressure head. The unwinding and rewinding reels are housed within the casing, while the pressure head is mounted at an opening in the casing. The tape from the unwinding reel passes over the end of the pressure head and connects to the rewinding reel. During operation, the unwinding reel releases the tape with a correction coating, which is guided by the pressure head and adheres tightly to the paper. When the writing error comes into contact with the pressure head, the pressure causes the correction coating on the tape to peel off the base tape, precisely covering the mistake. Simultaneously, the rewinding reel, through internal gear linkage, synchronously retrieves the blank base tape after the correction coating has been removed.

[0021] Most correction tapes on the market are currently designed for single use. For example, the pressure head of the patent with application number 201610955226.6 has the function of extending and retracting, which is relatively expensive. However, once the tape on the unwinding reel is used up, the entire correction tape cannot be used again, which makes the usage cost relatively high.

[0022] To address the aforementioned problems, this invention provides a correction tape with a retractable pressure head and replaceable core, which enables the replacement of the correction tape core, thereby improving the problem of high usage costs.

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0027] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0028] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0029] The following detailed description of the overall structure, working principle, and technical effects of the correction tape 1000 with retractable pressure head and replaceable core provided by the present invention, through embodiments and in conjunction with the accompanying drawings, is a practical example.

[0030] Please refer to Figure 1 This embodiment provides a correction tape 1000 with a retractable pressure head and replaceable core for correcting writing errors. The core can be replaced after the internal tape is used up, thereby reducing the cost of use.

[0031] Please refer to Figures 1 to 6 In this embodiment, the replaceable correction tape 1000 with a retractable pressure head includes a housing assembly 200, a correction tape core 100, and a cover assembly 300. The housing assembly 200 has a mounting cavity 211 and an extension opening 212 and a disassembly opening 213 communicating with the mounting cavity 211. The correction tape core 100 is mounted in the mounting cavity 211 and has a fixed housing 110 and a pressure head 140 movably disposed in the fixed housing 110. The cover assembly 300 is mounted in the disassembly opening 213 and connected to the housing assembly 200. The cover assembly 300 has an open state and a closed state. When the cover assembly 300 is in the closed state, it can close the disassembly opening 213; when the cover assembly 300 is in the open state, the correction tape core 100 can be removed through the disassembly opening 213. The cover assembly 300 and / or the housing assembly 200 are connected to the pressure head 140 via a drive, enabling the pressure head 140 to extend out of the extension port 212 or retract from the extension port 212. When the pressure head 140 is extended or retracted, it can be fixed relative to the fixed housing 110.

[0032] In this embodiment, the cover assembly 300 is installed at the disassembly port 213 and connected to the housing assembly 200, allowing the cover assembly 300 to have open and closed states. This enables convenient replacement of the correction tape refill 100 after use, improving user convenience and device maintainability. Most importantly, this application ensures that the pressure head 140 is fixed relative to the fixed housing 110 when extended or retracted, facilitating the replacement of the correction tape refill 100 and preventing movement of the pressure head 140 from affecting the replacement process.

[0033] Please refer to Figures 6 to 19Furthermore, the correction tape replacement core 100 also includes an unwinding reel 150 and a take-up reel 160. The fixing housing 110 has an assembly cavity 111 and an opening 112 communicating with the assembly cavity 111. The fixing housing 110 is provided with a snap-fit ​​structure 113 and an unlocking structure 114 corresponding to the snap-fit ​​structure 113. The pressure head 140 is provided with a fixing structure 141 that cooperates with the snap-fit ​​structure 113. The pressure head 140 is movably mounted on the fixing housing 110. The pressure head 140 has an extended state that extends out of the opening 112 relative to the fixing housing 110 and a retracted state that retracts into the assembly cavity 111. When the pressure head 140 is in the extended state and / or retracted state, the snap-fit ​​structure 113 engages with the fixing structure 141 to restrict the movement of the pressure head 140. The unwinding reel 150 and the take-up reel are disposed in the assembly cavity 111. The tape from the unwinding reel 150 is wound around the take-up reel 160 via the pressure head 140. The housing assembly 200 and / or the cover assembly 300 are provided with a drive unit 310, which is connected to the unlocking structure 114. When the cover assembly 300 and / or the housing assembly 200 drive the pressure head 140 to extend out of the extension port 212 or retract from the extension port 212, the drive unit can drive the unlocking structure 114 to disengage the locking structure 113 from the fixing structure.

[0034] In this embodiment, an assembly cavity 111 is provided inside the fixing shell 110 of the correction tape core 100 to accommodate the unwinding reel 150 and the take-up reel 160. The tape on the unwinding reel 150 is wound onto the take-up reel 160 after being wound by the pressure head 140, thereby realizing the unwinding and take-up of the tape. However, since the outer side of the tape has a correction coating, in order to avoid affecting the coating when not in use, this application movably mounts the pressure head 140 to the fixing shell 110, and has an extended state relative to the fixing shell 110 with an opening 112 protruding out and a retracted state retracted into the assembly cavity 111, thereby facilitating storage and use.

[0035] Because the pressure head 140 is movably mounted on the fixed housing 110 of the correction tape replacement core, and the housing assembly 200 and / or the housing assembly 200 are only connected to the pressure head 140 to control and drive the pressure head 140 to extend or retract when the correction tape replacement core 100 is installed on the housing assembly 200, the pressure head 140 may extend or retract relative to the fixed housing 110 of the correction tape replacement core 100 during the replacement process, affecting the assembly effect.

[0036] To address the aforementioned issues, this embodiment includes a snap-fit ​​structure 113 and a corresponding unlocking structure 114 on the fixed housing 110, and a fixing structure 141 that cooperates with the snap-fit ​​structure 113 on the pressure head 140. This allows the pressure head 140 to be fixed in either an extended or retracted state via the snap-fit ​​structure 113 and the fixing structure 141, preventing movement of the pressure head 140 during replacement of the correction tape core 100 and facilitating its replacement. Furthermore, the fact that the pressure head 140 can be fixed relative to the fixed housing 110 also facilitates the winding, assembly, and packaging of the correction tape core during production.

[0037] Furthermore, in this embodiment, an unlocking structure 114 corresponding to the snap-fit ​​structure 113 is provided in the fixed shell 110, and a driving part 310 is provided in the shell assembly 200 and / or the cover assembly 300. After the correction tape replacement core 100 is replaced, the unlocking structure 114 of the newly replaced correction tape replacement core 100 will form a transmission connection with the driving part 310. In this way, when the drive pressure head 140 of the cover assembly 300 and / or the shell assembly 200 extends out of the extension port 212 or retracts from the extension port 212, the driving part can drive the unlocking structure 114 to drive the snap-fit ​​structure 113 to disengage from the fixed structure. It is not necessary to unlock it separately after the correction tape replacement core 100 is replaced, making the operation more convenient.

[0038] Normally, when the correction tape refill 100 leaves the factory, its snap-fit ​​structure 113 and fixing structure 141 are snap-fitted together. When the user needs to replace the correction tape refill 100, they only need to take the correction tape refill 100 out of the packaging and open the cover assembly 300 to replace it.

[0039] Furthermore, the snap-fit ​​structure 113 and the fixing structure 141 can also fix the pressure head 140 and the fixing shell 110 relatively when the correction tape is in use, thereby reducing the movement of the pressure head 140 relative to the fixing shell 110 and improving the stability of use. Providing the drive unit 310 in the housing assembly 200 and / or the cover assembly 300 simplifies the structure of the correction tape replacement core 100 and reduces its cost.

[0040] Please refer to Figures 6 to 19In this embodiment, the fixed housing 110 includes a first housing 115, with an opening 112 disposed on the side wall of the first housing 115. The pressure head 140, the unwinding reel 150, and the rewinding reel 160 are all disposed in the first housing 115. The first housing 115 is installed in the mounting cavity 211. The snap-fit ​​structure 113 includes a first snap-fit ​​boss 116 protruding from the first housing 115. The unlocking structure 114 includes a first unlocking boss 117 protruding from the first housing 115. The fixing structure 141 includes a first abutting boss 142 disposed on the pressure head 140 and cooperating with the first snap-fit ​​boss 116. When the pressure head 140 is in the extended state, the first snap-fit ​​boss 116 and the first abutting boss 142 snap together to restrict the pressure head 140 from moving in the retracting direction. The cover assembly 300 is rotatably disposed on the middle housing 210 assembly, and the cover assembly 300 is drively connected to the pressure head 140. The drive unit 310 includes a first drive unit 311 disposed on the cover assembly 300 and corresponding to the first unlocking protrusion 117. The cover assembly 300 rotates relative to the middle shell 210 assembly in a first direction. The first drive unit 311 can drive the first unlocking protrusion 117 to disengage the first engaging protrusion 116 from the first abutting protrusion 142, and drive the pressure head 140 from an extended state to a retracted state. Most importantly, it enables the disengagement of the engagement before retraction.

[0041] In this embodiment, the snap-fit ​​structure 113 is configured as a first snap-fit ​​boss 116 protruding from the first housing 115, and the unlocking structure 114 is configured as a first unlocking boss 117 protruding from the first housing 115. The fixing structure 141 is configured as a first abutting boss 142 located on the pressure head 140 and cooperating with the first snap-fit ​​boss 116. This structure is simple and easy to manufacture.

[0042] In this embodiment, the first housing 115, the first unlocking boss 117, and the first abutting boss 142 are integrally injection molded, which can reduce manufacturing and assembly costs.

[0043] It should also be noted that in this embodiment, the cover assembly 300 is rotatably disposed on the middle shell 210 assembly. After the correction tape replacement core 100 is installed in the mounting cavity 211, the cover assembly 300 will be connected to the pressure head 140 in a transmission manner. The cover assembly 300 is provided with a first driving part 311 corresponding to the first unlocking protrusion 117. In this way, when the cover assembly 300 rotates relative to the middle shell 210 assembly in the first direction, the first driving part 311 can drive the first unlocking protrusion 117 to disengage the first abutting protrusion 142 from the first locking protrusion 116, and drive the pressure head 140 to move from the extended state to the retracted state.

[0044] It should be noted that the setting of the first snap-fit ​​boss 116 and the first abutment boss 142 needs to be determined according to the position of the pressure head 140 in the extended state, so as to ensure that the two can be snapped and fixed when the pressure head 140 is in the extended state.

[0045] Furthermore, the first driving part 311 includes a first guide part 312 protruding from the inner side of the cover assembly 300, and the guide surface of the first guide part 312 is provided with a recessed first clearance groove 313. When the pressure head 140 is in the extended state, the first unlocking boss 117 is at least partially accommodated in the first clearance groove 313. When the cover assembly 300 rotates relative to the middle shell 210 assembly in the first direction, the first guide part 312 rotates relative to the first unlocking boss 117, causing the first unlocking boss 117 to move out of the first clearance groove 313. During the process of the first unlocking boss 117 moving out of the first clearance groove 313, the first unlocking boss 117 drives the first engaging boss 116 to disengage from the first abutting boss 142.

[0046] In this embodiment, the first drive unit 311 is configured as described above. After the correction belt replacement core 100 is installed, the first drive unit 311 can be connected to the first unlocking boss 117 for transmission. The structure is simple and easy to manufacture and assemble.

[0047] Please refer to Figures 6 to 19 Furthermore, the first guide portion 312 is an arc-shaped platform or ring platform protruding from the inner side of the cover assembly 300, and its axis coincides with the rotation axis of the cover assembly 300. The inner or outer side of the first guide portion 312 forms a guide surface, and a recessed first relief groove 313 is provided on the guide surface. In this way, after the correction tape replacement core 100 in the retracted state is assembled in the mounting cavity 211, after the cover assembly 300 is closed, the first unlocking boss 117 will extend into the first relief groove 313, while the pressure head 140 remains in the extended state, and the first engaging boss 116 and the first abutting boss 142 are still in the engaging state. In use, the user rotates the cover assembly 300 relative to the housing assembly 200. The first guide portion 312 rotates relative to the first unlocking protrusion 117, causing the first unlocking protrusion 117 to move out of the first clearance groove 313. During this movement, the side wall of the first clearance groove 313 applies a pushing force to the first unlocking protrusion 117, causing partial deformation of the first housing 115. This causes the first engaging protrusion 116 to shift, releasing it from contact with the first abutting protrusion 142. Afterward, the cover assembly 300 continues to rotate, driving the pressure head 140 to move in the retraction direction. This makes operation more convenient and is linked to the retraction of the pressure head 140.

[0048] In this embodiment, the first housing 115 is provided with a first deformation groove 118 in the area corresponding to the first engaging boss 116 and the first unlocking boss 117. The first deformation groove 118 surrounds the first housing 115 to form a first deformation area 119. During the process of the first unlocking boss 117 moving out of the first clearance groove 313, the first guide portion 312 can cause the first engaging boss 116 to deform the first deformation area, so as to move the first engaging boss 116 and release it from the first abutting boss 142.

[0049] In this embodiment, a first deformation groove 118 is provided in the area of ​​the first housing 115 corresponding to the first engaging boss 116 and the first unlocking boss 117. This makes it easy for the first housing 115 to deform in a preset direction when the first guide part 312 applies force to the first unlocking boss 117, thereby driving the first engaging boss 116 to move away from the first abutting boss 142 and thus unlocking.

[0050] In this embodiment, the first deformation region 119 includes a first segment 120 and a second segment 121. The first segment 120 extends in the direction of movement of the pressure head 140 relative to the first housing 115. The second segment 121 is connected to the first segment 120 at an angle and is connected to the first housing 115, so that deformation regions are formed at both the connection between the first segment 120 and the second segment 121 and the connection between the second segment 121 and the first housing 115. A first engaging boss 116 is correspondingly disposed at the end of the first segment 120 away from the second segment 121, and a first unlocking boss 117 is correspondingly disposed at the end of the first segment 120 closer to the second segment 121.

[0051] In this embodiment, the first deformation is set as a first segment 120 and a second segment 121 connected at an angle, and the first engaging boss 116 is correspondingly set at the end of the first segment 120 away from the second segment 121, and the first unlocking boss 117 is corresponding to the end of the first segment 120 close to the second segment 121. This can form a lever principle, which makes it easy to drive the deformation. In addition, this setting can form two deformation zones, thus avoiding the problem of stress concentration and fracture caused by excessive local deformation.

[0052] Furthermore, the width of the first segment 120 gradually narrows towards the second segment 121, and the width of the second segment 121 gradually narrows away from the first segment 120. This ensures that the first segment 120 and the second segment 121 deform at the preset position, thereby enabling the first snap-fit ​​boss 116 to move in the corresponding direction.

[0053] Please refer to Figures 6 to 19Furthermore, the first engaging boss 116 and the first abutting boss 142 are provided with a first guide slope 122 in the direction of movement of the corresponding pressure head 140 from the retracted state to the extended state. When the pressure head 140 moves from the retracted state to the extended state, the first guide slope 122 guides, enabling the first abutting boss 142 to pass over the first engaging boss 116 and engage.

[0054] In this embodiment, a first guide ramp 122 is provided. When the pressure head 140 moves from the retracted state to the extended state, the first engaging boss 116 can pass over the first abutting boss 142 and engage with the first abutting boss 142 through the cooperation of the first guide ramp 122, thereby achieving fixation in the extended state.

[0055] In this embodiment, the housing assembly 200 includes a middle housing 210 and a rotating cover 230. A mounting cavity 211 is disposed in the middle housing 210, with a disassembly opening on one side and a mounting opening 214 on the other. The fixed housing 110 also includes a second housing 123, which is mounted on the side of the first housing 115 corresponding to the rotating cover and forms an assembly cavity 111 with the first housing 115. The snap-fit ​​structure 113 also includes a second snap-fit ​​boss 124 protruding from the second housing 123. The unlocking structure 114 also includes a second unlocking boss 125 protruding from the second housing 123. The fixing structure 141 also includes a second abutment boss 143 disposed on the pressure head 140 and cooperating with the second snap-fit ​​boss 124. When the pressure head 140 is in the retracted state, the second abutment boss 143 engages with the second locking boss 124; the rotating cover 230 is rotatably mounted on the mounting port 214, and the rotating cover 230 is drive-connected to the pressure head 140. The drive unit 310 also includes a second drive unit 231 disposed on the rotating cover 230 and corresponding to the second unlocking boss 125. When the rotating cover 230 rotates relative to the middle shell 210 in a second direction, the second drive unit 231 can drive the second unlocking boss 125 to disengage the second locking boss 124 from the second abutment boss 143, and drive the pressure head 140 from the retracted state to the extended state.

[0056] In this embodiment, the snap-fit ​​structure 113 is configured as a second snap-fit ​​boss 124 protruding from the second housing 123, and the unlocking structure 114 is configured as a second unlocking boss 125 protruding from the second housing 123. The fixing structure 141 is configured as a second abutment boss 143 on the pressure head 140 that cooperates with the second snap-fit ​​boss 124. This structure is simple and easy to manufacture. Most importantly, when the pressure head 140 is in the retracted state, the pressure head 140 can be fixed to the second housing 123, preventing the pressure head 140 from moving. This facilitates the replacement of the correction tape core 100 and makes it easier to install the correction tape core 100 in the mounting cavity 211.

[0057] Please refer to Figures 6 to 19In this embodiment, the second housing 123, the second unlocking boss 125, and the second abutting boss 143 are integrally injection molded, which can reduce manufacturing and assembly costs.

[0058] It should also be noted that in this embodiment, the rotating cover 230 is rotatably disposed on the middle shell 210. After the correction tape replacement core 100 is installed in the mounting cavity 211, the rotating cover 230 will be connected to the pressure head 140 in a transmission manner. The rotating cover 230 is provided with a second driving part 231 corresponding to the second unlocking boss 125. In this way, when the rotating cover 230 rotates relative to the middle shell 210 in the second direction, the second driving part 231 can drive the second unlocking boss 125 to drive the second abutting boss 143 to disengage from the second locking boss 124, and drive the pressure head 140 to move from the retracted state to the extended state.

[0059] It should be noted that the setting of the second snap-fit ​​boss 124 and the second abutment boss 143 needs to be determined according to the position of the pressure head 140 in the retracted state, so as to ensure that the two can be snapped and fixed when the pressure head 140 is in the retracted state.

[0060] Furthermore, the second driving part 231 includes a second guide part 232 protruding from the inner side of the rotating cover 230, and the guide surface of the second guide part 232 is provided with a recessed second clearance groove 233. When the pressure head 140 is in the extended state, the second unlocking boss 125 is at least partially accommodated in the second clearance groove 233. When the rotating cover 230 rotates relative to the middle shell 210 in the second direction, the second guide part 232 rotates relative to the second unlocking boss 125, causing the second unlocking boss 125 to move out of the second clearance groove 233. During the process of the second unlocking boss 125 moving out of the second clearance groove 233, the second unlocking boss 125 drives the second locking boss 124 to disengage from the second abutting boss 143.

[0061] In this embodiment, the second drive unit 231 is configured as described above. After the correction belt replacement core 100 is installed, the second drive unit 231 can be connected to the second unlocking boss 125 for transmission. The structure is simple and easy to manufacture and assemble.

[0062] Furthermore, the second guide portion 232 is an arc-shaped platform or annular platform protruding from the inner side of the rotating cover 230, and its axis coincides with the rotation axis of the rotating cover 230. A guide surface is formed on the inner or outer side of the second guide portion 232, and a recessed second relief groove 233 is provided on the guide surface. In this way, after the correction tape core 100 in the retracted state is assembled into the mounting cavity 211, the second unlocking boss 125 will extend into the second relief groove 233, while the pressure head 140 remains in the retracted state, and the second engaging boss 124 and the second abutting boss 143 are still in the engaging state. In use, when the user rotates the rotating cover 230 relative to the device, the second guide part 232 rotates relative to the second unlocking protrusion 125, causing the second unlocking protrusion 125 to move out of the second clearance groove 233. During this movement, the side wall of the second clearance groove 233 applies a pushing force to the second unlocking protrusion 125, causing partial deformation of the second housing 123, which in turn causes the second locking protrusion 124 to shift and disengage from the second abutting protrusion 143. Afterward, the rotating cover 230 continues to rotate, driving the pressure head 140 to move in the extension direction. This makes operation more convenient and is linked to the extension of the pressure head 140. Most importantly, it allows for the release of the locking mechanism before extension.

[0063] Please refer to Figures 6 to 19 In this embodiment, the second housing 123 is provided with a second deformation groove 126 corresponding to the area of ​​the second engaging boss 124 and the second unlocking boss 125. The second deformation groove 126 surrounds the second housing 123 to form a second deformation area 127. During the process of the second unlocking boss 125 moving out of the second clearance groove 233, the second guide portion 232 enables the second unlocking boss 125 to drive the second deformation area to deform, thereby driving the second engaging boss 124 to move and release it from the engagement with the second abutting boss 143.

[0064] In this embodiment, a second deformation groove 126 is provided in the area of ​​the second housing 123 corresponding to the second engaging boss 124 and the second unlocking boss 125. This makes it easy for the second housing 123 to deform in a preset direction when the second guide 232 applies force to the second unlocking boss 125, thereby driving the second engaging boss 124 to move away from the second abutting boss 143 and thus unlocking.

[0065] In this embodiment, the second deformation groove 126 is approximately U-shaped, and the second deformation groove 126 encloses a second deformation region 127 that gradually narrows from the end towards the inward side, which facilitates deformation at a preset position. The second engaging boss 124 is correspondingly disposed at the end of the second deformation region 127, and the second unlocking boss 125 is disposed in the middle of the second deformation region 127, which can be specifically selected according to the diameter and position of the second guide portion 232.

[0066] Furthermore, the second engaging boss 124 and the second abutting boss 143 are provided with a second guide slope 128 in the direction of movement of the corresponding pressure head 140 from the extended state to the retracted state. When the pressure head 140 moves from the extended state to the retracted state, the second guide slope 128 guides it, allowing the second abutting boss 143 to pass over the second engaging boss 124 and engage.

[0067] In this embodiment, a second guide slope 128 is provided on both the second engaging boss 124 and the second abutting boss 143. In this way, when the pressure head 140 moves from the extended state to the retracted state, the second guide slope 128 guides the second abutting boss 143 to pass over the second engaging boss 124 and engage, and the structure is simple.

[0068] In this embodiment, the epoxy board of the rotating cover 230 and the middle shell 210 is circular, and the inner side is provided with mounting ribs 215. The mounting ribs 215 define a mounting cavity 211 that matches the outer contour of the correction tape replacement core 100, thereby defining the specific installation position of the correction tape replacement core 100. On the outer periphery of the mounting ribs 215, a slide 216 is provided in the circumferential direction of the middle shell 210. The cover assembly 300 and the rotating cover 230 are installed in the slide 216 and can rotate relative to the middle shell 210.

[0069] Furthermore, the cover assembly 300 includes a connecting shell 320 and a flip cover 330. The connecting shell 320 is disposed in the slide 216. The rotating cover 230 is connected to one side of the connecting shell 320, and the flip cover 330 is connected to the other side of the connecting shell 320 via a pivot to flip open and close. The rotating cover 230, the connecting shell 320, and the flip cover 330 can rotate synchronously relative to the middle shell 210.

[0070] Please refer to Figures 6 to 19 In this embodiment, a connecting shell 320 is provided to connect the rotating cover 230 and the flip cover 330, thereby enabling the two to rotate synchronously, which facilitates better operation by the user.

[0071] Specifically, the connecting shell 320 is roughly arc-shaped, with a snap-fit ​​seat 321 and an adapter seat 322 respectively located at both ends of its diameter on one side. The flip cover 330 is mounted on the adapter seat 322 via a pivot. A snap-fit ​​structure 331 is provided on the flip cover 330 corresponding to the snap-fit ​​seat 321. The flip cover 330 can rotate relative to the pivot to open and close. In the closed position, the snap-fit ​​structure 331 engages with the snap-fit ​​seat 321 to secure it in the closed state. Multiple connecting shafts 323 are located on the other side of the connecting shell 320, and multiple insertion holes 235 are provided inside the rotating cover 230. The connecting shafts 323 are inserted into the insertion holes 235 one by one to secure the rotating cover to the connecting shell 320.

[0072] Secondly, the rotating cover 230 is also provided with a baffle 234. When the rotating cover 230 rotates to the retracted state of the pressure head 140, the baffle 234 can block the protrusion 212. When the rotating cover 230 rotates in the direction of extending the pressure head 140, the baffle 234 can open the protrusion 212 first.

[0073] Furthermore, the first housing 115 is provided with a first arc-shaped slide groove 129, and the pressure head 140 is provided with a first slider 145. The first slider 145 is slidably installed in the first arc-shaped slide groove 129, and the end of the first slider 145 extends to the outside of the first housing 115. The inner side of the flip cover 330 is provided with a first drive groove 332 extending from the inside to the outside. When the flip cover 330 is closed, the end of the first slider 145 is slidably installed in the first drive groove 332. During the rotation of the flip cover 330 relative to the axis of the middle housing 210, the groove wall of the first drive groove 332 can drive the slider to move along the first arc-shaped slide groove 129 so that the pressure head 140 moves between the extended state and the retracted state. When the pressure head 140 is in the extended state, the first slider 145 abuts against one end of the outer side of the first drive groove 332, and the first unlocking boss 117 is engaged in the first clearance groove 313. The second housing 123 is provided with a second arc-shaped slide groove 130, and the pressure head 140 is provided with a second slider 146. The second slider 146 is slidably installed in the second arc-shaped slide groove 130, and the end of the second slider 146 extends to the outside of the second housing 123. The inner side of the rotating cover 230 is provided with a second drive groove 236 extending from the inside to the outside, and the end of the second slider 146 is slidably installed in the second drive groove 236. During the rotation of the rotating cover 230 relative to the middle housing 210, the groove wall of the second drive groove 236 can drive the second slider 146 to move along the second arc-shaped slide groove 130 so that the pressure head 140 moves between the extended state and the retracted state. When the pressure head 140 is in the retracted state, the second slider 146 abuts against one end of the inner side of the second drive groove 236, and the second unlocking boss 125 is engaged in the second clearance groove 233.

[0074] This embodiment, by providing a first drive groove 332 and a second drive groove 236, allows the pressure head 140 to extend and retract by rotating the rotating cover 230 and flipping the cover 330, and can also achieve unlocking, with a simple structure.

[0075] In this embodiment, the first drive groove 332 and the second drive groove 236 are roughly divided into an inner arc segment, a middle guide segment, and an outer arc segment. The axes of the inner and outer arc segments coincide with the rotation axis of the rotating cover 230. The middle guide segment extends from the inside to the outside and is inclined relative to the radial direction. The outer arc segment extends in opposite directions to the inner arc segment.

[0076] When the pressure head 140 moves from the retracted state to the extended state, in the retracted state, the second engaging boss 124 engages with the second abutting boss 143, the second unlocking boss 125 is located within the second clearance groove 233, and the slider is located within the inner arc segment. When the rotating cover 230 and the flip cover 330 are rotated, since the inner arc segment is coaxial with the rotation axis of the rotating cover 230 and the flip cover 330, the first driving groove 332 and the second driving groove 236 will not drive the slider to move during this process; only the second unlocking boss 125 will move out of the second clearance groove 233, releasing the engagement. When the rotating cover 230 and the flip cover 330 rotate until the slider abuts against the intermediate guide section, since the intermediate guide section extends from the inside out and is relatively radially inclined, it will push the slider to move outward along the side wall of the intermediate guide section, thereby driving the extension of the pressure head 140. When the slider moves to the outer arc segment, since the outer arc segment is coaxial with the rotation axis of the rotating cover 230 and the flip cover 330, the first drive groove 332 and the second drive groove 236 will no longer drive the slider to continue moving during this process. The first clearance groove 313 will rotate to the position corresponding to the first unlocking boss 117, so that the first housing 115 restores its deformation and the first engaging boss 116 and the first abutting boss 142 engage, and the pressure head 140 remains engaged in the extended state.

[0077] The process of the pressure head 140 moving from the extended state to the retracted state is the opposite of the process of the pressure head 140 moving from the retracted state to the extended state, and will not be described again in this embodiment.

[0078] It should also be noted that the slider is formed by two cylinders. One cylinder has a longer protrusion that can be inserted into the first drive groove 332 and the second drive groove 236, while the other cylinder has a shorter protrusion to prevent the pressure head 140 from rotating.

[0079] Of course, in some other embodiments of this application, the pressure head 140 may also be connected to the first housing 115 and the second housing 123 by a rotating connection.

[0080] Please refer to Figures 6 to 19 Secondly, in this embodiment, there are two of each of the first clearance groove 313 and the second clearance groove 233, which correspond to the extension state and the locking state of the pressure head 140, respectively.

[0081] In this embodiment, the pressure head 140 is provided with a first winding post 144, and a first abutting boss 142 and abutting boss 143 are provided on the outer periphery of both ends of the first winding post 144 in the length direction. The first housing 115 and the second housing 123 are fixed by snap-fit. The first housing 115 is provided with a second winding post 147 at the position corresponding to the unwinding reel 150 and the pressure head 140, and the first housing 115 is provided with a third winding post 148 at the position corresponding to the pressure head 140 and the take-up reel 160. The material strip of the unwinding reel 150 is sequentially wound around the outer side of the second winding post 147, the pressure head 140, the inner side of the first winding post 144, the outer side of the third winding post 148, and the take-up reel 160, so that when the pressure head 140 slides between the retracted state and the extended state, the material strip wound on the pressure head 140 does not drive the unwinding reel 150 to rotate.

[0082] In summary, the correction tape 1000 with a retractable pressure head and replaceable core provided in this embodiment includes a housing assembly 200, a correction tape core 100, and a cover assembly 300. By installing the cover assembly 300 into the disassembly port 213 and connecting it to the housing assembly 200, the cover assembly 300 has an open state and a closed state. This allows for convenient replacement of the correction tape core 100 after use, thereby improving user convenience and device maintainability. Most importantly, this application ensures that the pressure head 140 is fixed relative to the fixed housing 110 when extended or retracted, facilitating the replacement of the correction tape core 100 and preventing the movement of the pressure head 140 from affecting the replacement of the correction tape core 100.

[0083] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A correction tape with a retractable pressure head and replaceable core, characterized in that, include: The housing assembly (200) is provided with a mounting cavity (211) and an extension (212) and a disassembly port (213) communicating with the mounting cavity (211). Correction tape replacement core (100) is installed in the mounting cavity (211) and has a fixed shell (110) and a pressure head (140) movably disposed in the fixed shell (110). A cover assembly (300) is installed at the disassembly port (213) and connected to the housing assembly (200). The cover assembly (300) has an open state and a closed state. When the cover assembly (300) is in the closed state, the cover assembly (300) can close the disassembly port (213). When the cover assembly (300) is in the open state, the correction tape replacement core (100) can be removed from the disassembly port (213). The cover assembly (300) and / or the housing assembly (200) are connected to the pressure head (140) to drive the pressure head (140) to extend out of the extension port (212) or retract from the extension port (212); When the pressure head (140) is extended or retracted, the pressure head (140) can be fixed relative to the fixed shell (110).

2. The correction tape with a retractable indenter and replaceable core according to claim 1, characterized in that, The correction tape core (100) further includes an unwinding reel (150) and a rewinding reel (160). The fixing shell (110) has an assembly cavity (111) and an opening (112) communicating with the assembly cavity (111). The fixing shell (110) is provided with a snap-fit ​​structure (113) and an unlocking structure (114) corresponding to the snap-fit ​​structure (113). The pressure head (140) is provided with a fixing structure (141) that cooperates with the snap-fit ​​structure (113). The pressure head (140) is movably mounted on the fixing shell (110). 0) The device has an extended state that extends out of the opening (112) relative to the fixed shell (110) and a retracted state that retracts into the assembly cavity (111). When the pressure head (140) is in the extended state and / or the retracted state, the snap-fit ​​structure (113) snaps into the fixed structure (141) to restrict the movement of the pressure head (140). The unwinding reel (150) and the winding reel (160) are disposed in the assembly cavity (111). The strip of the unwinding reel (150) is wound around the winding reel (160) via the pressure head (140). The housing assembly (200) and / or the cover assembly (300) are provided with a drive unit (310), which is connected to the unlocking structure (114) in a transmission manner; When the cover assembly (300) and / or the housing assembly (200) drive the pressure head (140) to extend out of the protrusion (212) or retract from the protrusion (212), the drive unit (310) can drive the unlocking structure (114) to disengage the locking structure (113) from the fixing structure (141).

3. The correction tape with a retractable indenter and replaceable core according to claim 2, characterized in that, The fixed shell (110) includes a first shell (115), the opening (112) is provided on the side wall of the first shell (115), the pressure head (140), the unwinding reel (150) and the winding reel (160) are all provided in the first shell (115), and the first shell (115) is installed in the mounting cavity (211); The snap-fit ​​structure (113) includes a first snap-fit ​​boss (116) protruding from the first housing (115). The unlocking structure (114) includes a first unlocking boss (117) protruding from the first housing (115). The fixing structure (141) includes a first abutting boss (142) disposed on the pressure head (140) and cooperating with the first snap-fit ​​boss (116). When the pressure head (140) is in the extended state, the first engaging boss (116) engages with the first abutting boss (142) to restrict the pressure head (140) from moving in the retracting direction. The cover assembly (300) is rotatably disposed on the housing assembly (200), and the cover assembly (300) is kinetically connected to the pressure head (140); The drive unit (310) includes a first drive unit (311) disposed on the cover assembly (300) and corresponding to the first unlocking protrusion (117). The cover assembly (300) rotates relative to the housing assembly (200) in a first direction. The first drive unit (311) can drive the first unlocking boss (117) to disengage the first locking boss (116) from the first abutting boss (142) and drive the pressure head (140) from the extended state to the retracted state.

4. The correction tape with a retractable indenter and replaceable core according to claim 3, characterized in that, The first driving part (311) includes a first guide part (312) protruding inside the cover assembly (300), and the guide surface of the first guide part (312) is provided with a recessed first relief groove (313). When the pressure head (140) is in the extended state, the first unlocking boss (117) is at least partially accommodated within the first clearance groove (313); When the cover assembly (300) rotates relative to the housing assembly (200) in the first direction, the first guide portion (312) rotates relative to the first unlocking boss (117) so that the first unlocking boss (117) moves out of the first clearance groove (313). During the process of the first unlocking boss (117) moving out of the first relief groove (313), the first unlocking boss (117) causes the first locking boss (116) to disengage from the first abutting boss (142).

5. The correction tape with a retractable indenter and replaceable core according to claim 4, characterized in that, The first housing (115) is provided with a first deformation groove (118) in the area corresponding to the first snap-fit ​​protrusion (116) and the first unlocking protrusion (117). The first deformation groove (118) surrounds the first housing (115) to form a first deformation area (119). During the process of the first unlocking boss (117) moving out of the first relief groove (313), the first guide part (312) can cause the first locking boss (116) to drive the first deformation area (119) to deform, so as to drive the first locking boss (116) to move and release the locking from the first abutting boss (142).

6. The correction tape with a retractable indenter and replaceable core according to claim 4 or 5, characterized in that, The housing assembly (200) includes a middle shell (210) and a rotating cover (230). The mounting cavity (211) is disposed in the middle shell (210). The disassembly port (213) is formed on one side of the middle shell (210), and the mounting port (214) is formed on the other side. The rotating cover (230) is rotatably mounted on the mounting port (214), and the rotating cover (230) is kinetically connected to the pressure head (140); The fixed shell (110) further includes a second shell (123), which is installed on the side of the first shell (115) corresponding to the rotating cover (230) and forms the assembly cavity (111) together with the first shell (115). The snap-fit ​​structure (113) further includes a second snap-fit ​​boss (124) protruding from the second housing (123). The unlocking structure (114) also includes a second unlocking boss (125) protruding from the second housing (123). The fixing structure (141) also includes a second abutting boss (143) disposed on the pressure head (140) and cooperating with the second snap-fit ​​boss (124). When the pressure head (140) is in the retracted state, the second abutting boss (143) engages with the second snap-fit ​​boss (124); The drive unit (310) also includes a second drive unit (231) disposed on the rotating cover (230) and corresponding to the second unlocking boss (125). The rotating cover (230) rotates relative to the middle shell (210) in a second direction. The second driving part (231) can drive the second unlocking boss (125) to disengage the second locking boss (124) from the second abutting boss (143) and drive the pressure head (140) from the retracted state to the extended state.

7. The correction tape with a retractable indenter and replaceable core according to claim 6, characterized in that, The second drive unit (231) includes a second guide unit (232) protruding from the inner side of the rotating cover (230), and the guide surface of the second guide unit (232) is provided with a recessed second relief groove (233). When the pressure head (140) is in the extended state, the second unlocking boss (125) is at least partially accommodated within the second relief groove (233); When the rotating cover (230) rotates relative to the middle shell (210) in the second direction, the second guide portion (232) rotates relative to the second unlocking boss (125) so that the second unlocking boss (125) moves out of the second clearance groove (233). During the process of the second unlocking boss (125) moving out of the second relief groove (233), the second unlocking boss (125) can drive the second locking boss (124) to disengage from the second abutting boss (143).

8. The correction tape with a retractable indenter and replaceable core according to claim 7, characterized in that, The second housing (123) is provided with a second deformation groove (126) in the area corresponding to the second snap-fit ​​boss (124) and the second unlocking boss (125). The second deformation groove (126) surrounds the second housing (123) to form a second deformation area (127). During the process of the second unlocking boss (125) moving out of the second relief groove (233), the second guide part (232) can cause the second unlocking boss (125) to deform the second deformation area (127) so as to drive the second locking boss (124) to move and release the locking from the second abutting boss (143).

9. The correction tape with a retractable indenter and replaceable core according to claim 7, characterized in that, The cover assembly (300) includes a connecting shell (320) and a flip cover (330). The middle shell (210) is provided with a slide (216) in the circumferential direction. The connecting shell (320) is disposed in the slide (216). The rotating cover (230) is connected to one side of the connecting shell (320). The flip cover (330) is connected to the other side of the connecting shell (320) through a pivot to flip open and close. The rotating cover (230), the connecting shell (320) and the flip cover (330) can rotate synchronously relative to the middle shell (210). The first housing (115) is provided with a first arc-shaped groove (129), and the pressure head (140) is provided with a first slider (145). The first slider (145) is slidably installed in the first arc-shaped groove (129), and the end of the first slider (145) extends to the outside of the first housing (115). The inner side of the flip cover (330) extends from the inside to the outside and is provided with a first drive groove (332). When the flip cover (330) is closed, the end of the first slider (145) can be slidably installed in the first drive groove (332). During the rotation of the flip cover (330) relative to the axis of the middle shell (210), the groove wall of the first drive groove (332) can drive the slider to move along the first arc-shaped slide groove (129) so that the pressure head (140) moves between the extended state and the retracted state. When the pressure head (140) is extended, the first slider (145) abuts against one end of the outer side of the first drive groove (332), and the first unlocking boss (117) is engaged in the first clearance groove (313).

10. The correction tape with a retractable indenter and replaceable core according to claim 7, characterized in that, The cover assembly (300) includes a connecting shell (320) and a flip cover (330). The middle shell (210) is provided with a slide (216) in the circumferential direction. The connecting shell (320) is disposed in the slide (216). The rotating cover (230) is connected to one side of the connecting shell (320). The flip cover (330) is connected to the other side of the connecting shell (320) through a pivot to flip open and close. The rotating cover (230), the connecting shell (320) and the flip cover (330) can rotate synchronously relative to the middle shell (210). The second housing (123) is provided with a second arc-shaped slide groove (130), and the pressure head (140) is provided with a second slider (146). The second slider (146) is slidably installed in the second arc-shaped slide groove (130), and the end of the second slider (146) extends to the outside of the second housing (123). The inner side of the rotating cover (230) is provided with a second drive groove (236) extending from the inside to the outside, and the end of the second slider (146) is slidably installed in the second drive groove (236); During the rotation of the rotating cover (230) relative to the middle shell (210), the groove wall of the second drive groove (236) can drive the second slider (146) to move along the second arc-shaped slide groove (130) so that the pressure head (140) moves between the extended state and the retracted state; When the pressure head (140) is in the retracted state, the second slider (146) abuts against one end of the inner side of the second drive groove (236), and the second unlocking boss (125) is engaged in the second clearance groove (233).

Images