A double-sided tape dispenser

Abstract

This invention discloses a double-sided tape dispenser, including a housing and a refill assembly slidably installed within the housing. The refill assembly includes a tape head, with double-sided tape wrapped around the tape head and wound inside the refill assembly. The housing has a first opening for the tape head to extend and retract. The head of the tape head is planar. The housing is equipped with a drive component and an elastic limiting structure that are drively connected to the refill assembly. The refill assembly and the elastic limiting structure are connected by a connecting part, which cooperates with the elastic limiting structure to limit the sliding movement of the refill assembly. This dispenser eliminates the front frame, allowing it to be used on an elastic surface without obstructing the view. The refill head remains extended through the cooperation of the elastic limiting structure and the connecting part, and automatically retracts after the tape head is pressed against the double-sided tape. The user only needs to apply force once to complete the adhesive reset, making it labor-saving and convenient to use.

Description

Technical Field

[0001] This invention relates to the field of daily necessities technology, and more specifically to a double-sided tape dispenser. Background Technology

[0002] Adhesive tape is widely used in the packaging industry and office life. Adhesive tape includes single-sided tape and double-sided tape, among which double-sided tape is mainly used for bonding paper, objects, etc. In the process of using double-sided tape, it is necessary to first stick it to the object, then cut the double-sided tape to the required length, and finally manually peel off the release paper on the surface of the double-sided tape stuck to the object. This manual method of applying tape requires manual smoothing after the double-sided tape is applied to make it completely adhere to the surface of the object, and after it is completely adhered, the release paper must be peeled off manually. The operator needs to go through three steps: sticking, pressing, and peeling, which is relatively cumbersome. Double-sided tape is mostly in roll form. To facilitate application, it is currently commonly used by attaching the roll to a dispensing device. Dispensers include correction tape type and stamp type. Currently, correction tape type dispensing devices often have exposed dispensing heads that are easily damaged. These heads are usually cylindrical or pointed. When using them, the dispensing head needs to be pressed firmly against the surface of the object, and the dispensing device needs to be pulled to slide the head against the surface, allowing the double-sided tape to adhere. However, the strong adhesion and high tensile strength of the double-sided tape can lead to uneven application and wrinkling. Stamp type dispensing devices, on the other hand, can directly press the double-sided tape onto the surface without sliding the dispensing device.

[0003] For example, invention patent CN108778772B discloses a printing-type coating transfer tool, which comprises: a housing half divided into two parts, the housing half being configured as a bottomed cylindrical housing with an opening at one end; a pull-out reel rotatably disposed within the housing for winding a transfer tape with a coating film on its surface; a winding reel rotatably disposed within the housing for winding the used transfer tape; a transfer pressing part disposed at the opening of one of the housing halves, having a pressing surface for pressing the back side of the transfer tape; and a sliding member that can be accessed via the opening of the housing. The opening moves inward and outward. The printing type coating transfer tool has the following integrally formed in the sliding member: a frame portion that protrudes beyond the opening of the housing and has a transfer opening communicating with the opening; a sliding portion that can be freely inserted into the housing; a spring portion that elastically contacts the bottom of the housing and always causes the frame portion to move outward from the housing; and a rack and pinion gear that only meshes with a winding gear coaxially provided with the winding reel when the sliding portion moves on the bottom side of the housing, and the transfer tape wound on the extraction reel is wound onto the winding reel in a state where it is in contact with the pressing surface of the transfer pressing portion and the surface of the transfer tape wound on the extraction reel. In this technical solution, the frame and the sliding part are connected. The user presses the frame vertically to align with the transfer position of the coating. There is a relative force between the frame and the transfer position surface. The frame slides into the housing through the sliding part to expose the rotating pressing part. The rotating pressing part transfers the coating onto the transfer position surface through the transfer surface. After the user removes the pressing force, the frame and the sliding part return to their original positions under the action of the spring. The working principle is similar to that of a stamp. Although this transfer tool can press the coating onto the surface of an object, when coating on an elastic surface, it is difficult for the elastic surface and the frame to generate a relative force. The frame will not slide into the housing, which makes it difficult to apply the adhesive. In addition, the frame obstructs the view, making it difficult for the user to align with the transfer position. There are also problems such as the frame being exposed and easily damaged, and the inability to replace the core. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a double-sided tape dispenser that can directly press the double-sided tape onto the surface of an object, eliminating the need for a front frame, allowing the dispenser to be used on elastic surfaces without obstructing the view. The dispenser uses an elastic limiting structure and a connecting part to keep the glue head in an extended state, and automatically retracts after the glue head presses the double-sided tape. The user only needs to apply force once to complete the adhesive reset, making it labor-saving and convenient to use.

[0005] This invention provides a double-sided tape dispenser, including a housing and a refill assembly slidably installed within the housing. The refill assembly includes a tape head, with double-sided tape wrapped around the tape head and wound inside the refill assembly. The housing has a first opening for the tape head to extend and retract. The head of the tape head is planar. The housing is equipped with a drive component and an elastic limiting structure that are drively connected to the refill assembly. The refill assembly and the elastic limiting structure are connected by a connecting part, which cooperates with the elastic limiting structure to slide and limit the refill assembly. When the user applies force to the drive component, the drive component is forced to slide the refill assembly, causing the tape head to extend. The connecting part is forced to slide relative to the elastic limiting structure. When the user releases the drive component, the connecting part is slidably limited by the force of the elastic limiting structure, keeping the tape head in an extended state. The tape head abuts against the surface of the adhesive to be used, causing the double-sided tape at the tip of the tape head to adhere to the surface of the adhesive to be used. Furthermore, the force of the tape head overcomes the force of the elastic limiting structure, thereby causing the refill assembly to slide back and reset.

[0006] In this technical solution, a replacement core assembly is slidably installed inside the housing. The replacement core assembly slides to extend and retract the adhesive head. A drive component connected to the replacement core assembly is mounted on the housing. The user applies force to the drive component to slide the replacement core assembly outwards, causing the adhesive head to extend from the first opening. An elastic limiting structure and a connecting part are provided, which work together to keep the adhesive head extended. The user presses the double-sided adhesive on the adhesive head against the surface of the adhesive to be used. The relative force exerted by the adhesive surface on the adhesive head causes it to automatically retract. The adhesive head, replacement core assembly, and drive component reset without user intervention. This method is more labor-saving than solutions that require constant pressing to keep the adhesive head extended. The dispensing head has a flat structure, allowing for better adhesion to the surface of the adhesive to be used. This enables the double-sided adhesive on the dispensing head to be directly applied to the surface by pressing. Compared to cylindrical or pointed dispensing heads that require the head to be pressed firmly against the surface of the adhesive to slide the dispensing device, this method is more labor-saving, provides better adhesion, offers a better field of vision, and allows for more precise use. In actual use, the user only needs to apply force to the drive component once to extend the dispensing head. With the cooperation of the elastic limiting structure and the connecting part, the user can release the drive component, and the dispensing head will remain extended. The user can then press the head of the dispensing head against the surface of the adhesive to be used vertically to adhere the double-sided adhesive to the surface. At the same time, the dispensing head retracts under pressure, causing the replacement core assembly and drive component to automatically reset for the next use.

[0007] As an improvement, the replacement core assembly includes a core ring and a take-up ring. A roll of adhesive tape is mounted on the core ring. The double-sided adhesive tape of the roll of tape passes around the head and is wound around the take-up ring. The core ring is connected to a first gear, and the take-up ring is connected to a second gear. The first gear and the second gear mesh and drive each other.

[0008] In this technical solution, the dispensing device uses the principle of correcting tape to feed and receive double-sided tape. The double-sided tape is installed through a core ring and stored through a take-up ring. The feeding and receiving of the double-sided tape is achieved through the meshing and transmission of a first gear and a second gear. The first gear rotates in the direction of dispensing the double-sided tape, and under the meshing action of the first gear and the second gear, the second gear rotates in the direction of retracting the double-sided tape, so that the double-sided tape is always in a taut state and prevents it from loosening.

[0009] As an improvement, a one-way transmission component connected to the first gear or the second gear is installed inside the housing. When the core assembly slides to extend the rubber head, the core assembly slides outward relative to the one-way transmission component. The one-way transmission component drives the first gear or the second gear to rotate, causing the rubber core ring to rotate and release the double-sided tape. At the same time, the tape take-up ring rotates in the opposite direction to retract the double-sided tape.

[0010] In this technical solution, by setting a one-way transmission component connected to the first gear or the second gear, when the core assembly slides outward, both the first gear and the second gear slide outward relative to the one-way transmission component. The one-way transmission component has a relative force with the first gear or the second gear, thereby driving the first gear or the second gear to rotate. When the one-way transmission component is connected to the first gear, the core assembly drives the first gear to slide outward relative to the one-way transmission component. The one-way transmission component drives the first gear to rotate in the direction of releasing the double-sided tape. Under the meshing action of the first gear and the second gear, the second gear rotates in the direction of retracting the double-sided tape, so that the glue dispenser can rotate in each... As the adhesive head extends, a new section of double-sided tape is pulled out, and the double-sided tape remains taut throughout. When the one-way transmission component connects with the second gear, the core assembly drives the second gear to slide outward relative to the one-way transmission component. The one-way transmission component drives the second gear to rotate in the direction of retracting the double-sided tape. Under the meshing action of the first and second gears, the first gear rotates in the direction of releasing the double-sided tape, ensuring that the double-sided tape remains taut throughout. This ensures that each time the adhesive head extends, a new section of double-sided tape is rotated to the head of the adhesive head, and the double-sided tape remains taut throughout. No further adjustment is required from the user, making it more effortless and convenient to use, and providing a better user experience.

[0011] As an improvement, the one-way transmission component is a rack and pinion structure, which meshes with the first gear. When the core assembly slides to extend the rubber head, the first gear rotates in the direction of releasing the double-sided tape under the action of the rack and pinion structure, and the second gear rotates in the opposite direction under the action of the first gear to retract the double-sided tape.

[0012] In this technical solution, the one-way transmission component is a rack structure that meshes with the first gear. When the driving component is subjected to force, it causes the core assembly to slide outward and extend the adhesive head. The core assembly drives the first gear to slide outward relative to the rack structure. The rack structure and the first gear interact with each other, causing the first gear to rotate in the direction of releasing the double-sided tape. The new double-sided tape rotates to the head of the adhesive head. Through the meshing action of the first gear and the second gear, the second gear rotates in the direction of retracting the double-sided tape. The old double-sided tape is retracted by the tape retractor. The double-sided tape is always in a taut state. The rack structure is simple, more labor-saving and convenient to use, and provides a better user experience.

[0013] As an improvement, this application can provide a specific structure for a one-way transmission component, which includes a rack connecting arm and a plurality of bent elastic racks. The bent elastic racks include a first segment near the rack connecting arm and a second segment away from the rack connecting arm. The inner wall of the outer shell is provided with a plurality of limiting protrusions adapted to the bent elastic racks. The limiting protrusions are interspersed with the first segment of the bent elastic racks, and the limiting protrusions abut against the side wall of the first segment of the bent elastic racks in the opposite bending direction.

[0014] In this technical solution, a unidirectional transmission component is provided, including a rack connecting arm and multiple bent elastic racks. The unidirectional transmission component is installed in the housing via the rack connecting arm. The first segment of the bent elastic rack is integrated with the rack connecting arm, and the second segment of the bent elastic rack meshes with the first gear to drive the first gear to rotate. Multiple limiting protrusions are provided on the inner wall of the housing, interspersed with the first segments of the bent elastic racks. Each first segment of the bent elastic rack has a limiting protrusion on the side opposite to the bending direction to prevent reverse deformation of the bent elastic rack. The bent elastic rack can more efficiently drive the first gear to rotate in a single direction. When the component slides out of the adhesive head, the second segment of the bending elastic rack interacts with the first gear. The bending elastic rack drives the first gear to rotate in the direction of releasing the double-sided tape, so that each time the adhesive head extends, new double-sided tape is rotated to the head of the adhesive head. When the replacement component slides back into the adhesive head, the first gear interacts with the second segment of the bending elastic rack. The bending elastic rack avoids the first gear by deforming the second segment along the bending direction, so that the first gear does not rotate around its own axis. This ensures that the double-sided tape will not rotate back. Even without a one-way ratchet structure in the gear seat, the double-sided tape can always rotate in a single direction, making it more reliable.

[0015] As an improvement, this application can also provide a specific structure for a one-way transmission component, wherein the driving component and the one-way transmission component are an integral structure, the driving component extends toward the direction of the first gear to form a rod portion, and the one-way transmission component is a rack structure disposed on the rod portion.

[0016] In this technical solution, the driving component and the one-way transmission component are integrated into a single structure, making the installation of the driving component and the guide transmission structure easier and more convenient. The one-way transmission component is a rack structure mounted on the rod of the driving component. When the user applies force to the operating part, the driving component slides towards the core assembly, causing the rack structure to engage with the first gear. At this time, the elastic reset component is under compression. While the driving component drives the core assembly to slide, the rack structure and the first gear have relative forces. The rack structure drives the first gear to rotate in the direction of releasing the double-sided tape, ensuring that each time the tape head extends, new double-sided tape is rotated to the head of the tape head. When the user releases the operating part, the driving component slides back to its original position under the action of the elastic reset component, causing the rack structure to slide back to its original position. The rack structure disengages from the first gear to avoid it, ensuring that the first gear does not rotate when the core assembly slides back to the tape head. This prevents the double-sided tape from rotating and retracting. Even without a one-way ratchet structure on the gear seat, the double-sided tape can still be guaranteed to rotate in a single direction, making it more reliable.

[0017] As an improvement, the replacement core assembly includes a core holder and a gear holder. The core ring and the take-up ring are both mounted on the core holder. The first gear and the second gear are both mounted on the gear holder. The gear holder is provided with a first one-way ratchet adapted to the first gear, and / or, the gear holder is provided with a second one-way ratchet adapted to the second gear.

[0018] In this technical solution, the core ring and the take-up ring are installed through a core holder, and the first gear and the second gear are installed through a gear holder. The core ring is sleeved with the first gear, and the take-up ring is sleeved with the second gear. The installation structure is simple and reliable. Furthermore, by setting a first one-way ratchet and / or a second one-way ratchet on the gear holder, the first gear can only rotate in the direction of releasing the double-sided tape, and the second gear can only rotate in the direction of retracting the double-sided tape. This prevents the first or second gear from rotating due to the action of the one-way transmission component when the core replacement assembly slides and resets, thus ensuring that the double-sided tape will not rotate back. The double-sided tape always rotates in a single direction, making it more reliable in use.

[0019] As an improvement, an inner housing adapted to the replacement core assembly is also slidably installed inside the outer housing. The replacement core assembly is detachably installed inside the inner housing. The replacement core assembly is connected to the driving component through the inner housing. The connecting part is provided on the outer wall of the inner housing. The replacement core assembly is connected to the elastic limiting structure through the inner housing.

[0020] In this technical solution, the driving component, one-way transmission component, and other components are all installed inside the housing. The replacement core assembly is detachably installed by setting an inner housing. The driving component drives the inner housing to slide within the outer housing, thereby causing the replacement core assembly to extend and retract. A connecting part is set on the outer wall of the inner housing, and is connected to the elastic limiting structure through the connecting part of the inner housing, so that the replacement core assembly can be replaced individually. After the double-sided tape is used up, the user can remove the replacement core assembly from the inner housing and replace it with a new replacement core assembly without affecting the use of other components. This improves the utilization rate of the dispensing device, reduces the cost of use, and saves effort and resources when replacing the tape.

[0021] As an improvement, the connecting part is a protrusion structure provided on the outer side wall of the inner shell, and the elastic limiting structure is an elastic slide rail structure provided on the side wall of the outer shell. The elastic slide rail structure clamps the protrusion structure from the top and bottom to limit the sliding of the core assembly. The elastic slide rail structure is provided along the length direction of the dispensing device. When the core assembly is subjected to force and slides, the protrusion structure is subjected to force and slides along the elastic slide rail structure.

[0022] In this technical solution, the connecting part is set as a protruding structure and the elastic limiting structure is an elastic slide rail structure. The elastic slide rail structure clamps the protruding structure from top to bottom with elastic force to limit the sliding of the core assembly. When the driving component drives the core assembly to slide, the driving force is greater than the elastic force of the elastic limiting structure. The connecting part can slide along the elastic limiting structure due to the force of the core assembly. When the core assembly is not driven, the connecting part is slidably limited by the elastic force of the elastic limiting structure, so that the core assembly is slidably limited, thereby keeping the rubber head in an extended or retracted state. The structure is simple and labor-saving to use.

[0023] As an improvement, this application can provide a specific setting scheme for an elastic limiting structure, wherein the side wall of the outer shell is provided with a third opening corresponding to the connecting part, and a first elastic rib is provided in the third opening. The first elastic rib divides the third opening into an operating groove and an anti-air groove, and the operating groove is configured as an elastic limiting structure.

[0024] In this technical solution, a third opening with a first elastic rib is provided, which divides the third opening into upper and lower parts. The first elastic rib and the upper part of the third opening cooperate to form a running groove, which is used to insert the connecting part. The running groove is configured as an elastic limiting structure, and the connecting part is clamped by the upper and lower parts of the running groove. Under the action of driving force, the connecting part can deform the elastic limiting structure and slide within the elastic limiting structure. The first elastic rib and the lower part of the third opening cooperate to form a clearance groove, which provides space for the elastic deformation of the first elastic rib, so that the connecting part slides smoothly within the running groove.

[0025] As an improvement, the first elastic rib is inverted U-shaped within the third opening, and the width dimensions at both ends of the running groove are greater than the width dimension in the middle of the running groove.

[0026] In this technical solution, by setting the first elastic rib in an inverted U-shape within the third opening, the dimensions at both ends of the running groove are larger than the dimensions in the middle of the running groove. When the rubber head extends, the connecting part is subjected to force, which causes the first elastic rib to deform and slide along the running groove. When the rubber head extends to the end, the connecting part slides to one end of the running groove. When the rubber head retracts, the connecting part is subjected to force, which causes the first elastic rib to deform and slide in the opposite direction along the running groove. When the rubber head retracts to the end, the connecting part slides to the other end of the running groove. When the connecting part slides to both ends of the running groove, the sliding limit of the rubber head must be maintained. By setting the dimensions at both ends of the running groove to be larger than the dimensions in the middle of the running groove, the clamping effect of the connecting part at both ends of the running groove can be improved, and the user can feel the damping when operating the extension and retraction of the rubber head, resulting in a better user experience.

[0027] This application can also provide a specific setting scheme for an elastic limiting structure, wherein the side wall of the outer shell is provided with a fifth opening corresponding to the connecting part, and two second elastic ribs are provided in the fifth opening. An elastic slide rail structure is formed between the two second elastic ribs, and the dimensions at both ends of the elastic slide rail structure are larger than the dimensions in the middle of the elastic slide rail structure.

[0028] In this technical solution, two second elastic ribs are set inside the fifth opening, forming a channel between them for the insertion of the connecting part. This channel is the elastic slide rail structure. The two second elastic ribs clamp the connecting part vertically and vertically through elastic force, limiting the sliding of the connecting part. The upper and lower parts of the fifth opening provide space for the elastic deformation of the two second elastic ribs, allowing the connecting part to slide smoothly within the elastic slide rail structure. When the rubber head extends, the force on the connecting part causes the two second elastic ribs to deform and slide along the elastic slide rail structure. When the rubber head extends to its full position, the connecting part... The connecting part slides to one end of the elastic slide rail structure. When the rubber head retracts, the force on the connecting part causes the two second elastic ribs to deform and slide in the opposite direction along the elastic slide rail structure. When the rubber head retracts to its position, the connecting part slides to the other end of the elastic slide rail structure. When the connecting part slides to both ends of the elastic slide rail structure, the rubber head must be kept in a sliding limit position. By setting the size at both ends of the elastic slide rail structure to be larger than the size in the middle of the elastic slide rail structure, the clamping effect of the connecting part at both ends of the elastic slide rail structure can be better, and the user can feel the damping when operating the rubber head to extend and retract, resulting in a better user experience.

[0029] As an improvement, the drive unit is provided with an operating part for the user to apply force, the outer shell is provided with a second opening for the operating part to pass through, the drive unit is also provided with a transmission part, and the inner shell is provided with a guide part that cooperates with the transmission part. When the user applies force to the operating part, the operating part drives the drive unit to move, and the drive unit acts on the guide part through the transmission part, so that the inner shell and the core assembly slide outward to extend the rubber head.

[0030] In this technical solution, the operating part of the drive unit extends out through the second opening to be exposed outside the outer shell, allowing the user to apply force to the operating part to drive the drive unit to move. By setting a transmission part in the drive unit and a guide part in the inner shell, the inner shell and the core assembly slide and extend / retract through the force of the transmission part and the cooperation of the guide part. When the user applies force to the operating part, the operating part drives the drive unit to move, the drive unit drives the transmission part and the guide part to cooperate, and the guide part drives the inner shell to slide and extend the core assembly to extend the rubber head. The structure is simple and the transmission efficiency is high.

[0031] As an improvement, this application provides a specific structure for the driving component, wherein the driving component is rotatably connected to the outer casing, the transmission part is a hook structure, the connecting part is configured as a guide part, and the connecting part is slidably engaged with the hook structure. When the user applies force to the operating part, the driving component is forced to rotate the hook structure, causing the hook structure to slide relative to the connecting part, thereby driving the inner casing and the core assembly to slide outward to extend the rubber head; the driving component is connected to an elastic reset component, and the driving component is reset by rotation through the elastic reset component.

[0032] In this technical solution, a driving component is rotatably connected to the outer shell. The user can rotate the driving component relative to the outer shell by applying force to the operating part. The outer shell rotates to drive the inner shell and the replacement core assembly to slide. The transmission part of the driving component is a hook structure, and the guide part of the inner shell is a connecting part. The connecting part is a protruding structure, and the connecting part and the hook structure are slidably engaged. When the user presses the operating part, the driving component is driven by the pressing force to rotate the hook structure. The hook structure exerts a relative force on the connecting part, thereby driving the inner shell to slide the replacement core assembly outward to extend the rubber head. When the user releases the operating part, the driving component automatically resets through an elastic reset component for the next use. The structure is simple and has high transmission efficiency.

[0033] As an improvement, this application can also provide a specific structure for the driving component, wherein the driving component is slidably connected to the outer shell, the transmission part is a slider structure, the guide part is an inclined slide rail structure, the slider structure and the inclined slide rail structure are slidably engaged, when the user applies force to the operating part, the driving component is forced to slide, causing the slider structure and the inclined slide rail structure to slide relative to each other, thereby driving the core assembly to slide outward to extend the rubber head; the driving component is connected to an elastic reset component, and the driving component is slidably reset by the elastic reset component.

[0034] In this technical solution, the driving component is slidably connected to the outer shell. The user can make the driving component slide relative to the outer shell by applying force to the operating part. The outer shell drives the inner shell and the replacement core assembly to slide by sliding. The transmission part of the driving component is a slider structure, and the guide part of the inner shell is an inclined slide rail structure. The slider structure and the inclined slide rail structure are slidably engaged. When the user applies force to the operating part, the driving component is forced to slide the slider structure towards the replacement core assembly. The slider structure and the inclined slide rail structure abut against each other and have a relative force, thereby driving the inner shell to drive the replacement core assembly to slide outward to extend the rubber head. When the user releases the operating part, the driving component automatically resets through an elastic reset component for the next use. The structure is simple and has high transmission efficiency.

[0035] As an improvement, the operating part is slidably connected to the second opening, and the operating part is either a toggle switch or a button. In this technical solution, the driving component is slidably connected to the outer casing, and the operating part is slidably connected to the second opening. The operating part can be either a toggle switch or a button, so that the user can apply force to operate the driving component to slide, and the structure is simple.

[0036] As an improvement, one side of the inner housing is connected to the drive component for transmission, and the other side of the inner housing is provided with a fourth opening adapted to the replacement core assembly. The replacement core assembly can enter and exit the inner housing through the fourth opening. The outer wall of the replacement core assembly is provided with an elastic protrusion, and the inner housing is provided with a mounting hole adapted to the elastic protrusion. The replacement core assembly is confined within the inner housing by inserting the elastic protrusion into the mounting hole.

[0037] In this technical solution, the inner housing is configured to install the replacement core assembly through a fourth opening on the side away from the driving component. The replacement core assembly can enter and exit the inner housing through the fourth opening, making it easy for the user to remove and replace the replacement core assembly. The fourth opening is located away from the driving component to avoid interference when the replacement core assembly enters and exits, making replacement easier and more convenient. After the replacement core assembly enters the inner housing, it is limited by an elastic protrusion inserted into the mounting hole to prevent the replacement core assembly from automatically detaching from the inner housing, thereby improving the structural installation stability.

[0038] As an improvement, a flip cover is provided on the side of the outer casing near the fourth opening. One end of the flip cover is rotatably connected to the outer casing, and the other end is elastically fastened to the outer casing. In this technical solution, a flip cover corresponding to the fourth opening is provided on the outer casing, with one end rotatably connected to the outer casing and the other end elastically fastened to the outer casing. By pressing the other end of the flip cover, the user can release the latch and rotate the flip cover outward to expose the fourth opening. The user can directly remove or insert the replacement core assembly through the fourth opening, which is simple and effortless to use, and makes replacing the replacement core assembly more convenient. Attached Figure Description

[0039] Figure 1This is a three-dimensional structural diagram of a double-sided tape dispenser head retracting as disclosed in this invention.

[0040] Figure 2 This is an exploded structural diagram of a double-sided tape dispenser disclosed herein.

[0041] Figure 3 This is a schematic diagram of the exploded structure of the core assembly in this disclosure.

[0042] Figure 4 This is a partial structural diagram of a double-sided tape dispenser when the nozzle retracts.

[0043] Figure 5 This is a partial structural diagram of a double-sided tape dispenser with the adhesive head extended.

[0044] Figure 6 This is a three-dimensional structural diagram of a double-sided tape dispenser with the adhesive head extended.

[0045] Figure 7 This is a three-dimensional structural diagram of the outer shell in this disclosure.

[0046] Figure 8 This is a three-dimensional structural diagram of the outer shell and inner shell in Embodiment 3 of this disclosure.

[0047] Figure 9 This is a three-dimensional structural diagram of the inner shell in this disclosure.

[0048] Figure 10 This is a three-dimensional structural diagram of the replacement core assembly installed inside the inner housing in this disclosure.

[0049] Figure 11 This is a three-dimensional structural diagram of the unidirectional transmission component in Embodiment 4 of this disclosure.

[0050] Figure 12 This is a partial structural schematic diagram of the glue dispenser in Embodiment 5 of this disclosure.

[0051] Figure 13 This is a three-dimensional structural diagram of the driving component in Embodiment 5 of this disclosure.

[0052] Figure 14 This is a partial structural schematic diagram of the glue dispenser in Embodiment Six of this disclosure.

[0053] Figure 15 This is a three-dimensional structural diagram of the driving component in Embodiment Six of this disclosure.

[0054] As shown in the figure: 1. Outer shell; 11. First opening; 12. Elastic limiting structure; 13. Second opening; 14. Third opening; 141. First elastic rib; 142. Running groove; 143. Clearance groove; 15. Limiting protrusion; 16. Fifth opening; 161. Second elastic rib; 2. Replacement core assembly; 21. Rubber head; 211. Head; 212. Elastic pad; 22. Rubber core ring; 23. Take-up ring; 24. Tape roll; 25. First tooth 26. Wheel; 27. Second gear; 28. Rubber core seat; 29. ​​Gear seat; 201. First one-way ratchet; 202. Elastic protrusion; 3. Inner shell; 31. Connecting part; 32. Guide part; 33. Fourth opening; 34. Mounting hole; 4. Driving component; 41. Operating part; 42. Transmission part; 5. One-way transmission component; 51. Rack connecting arm; 52. Bending elastic rack; 521. First section; 522. Second section; 6. Elastic reset component; 7. Flip cover. Detailed Implementation

[0055] 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.

[0056] 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.

[0057] It should also be understood that the terms “comprising,” “including,” “having,” “containing,” “comprise,” and “containing”, when used in this specification, indicate the presence of the described 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.

[0058] Example 1

[0059] like Figures 1 to 10 As shown, this application discloses a double-sided tape dispenser, including a housing 1 and a refill assembly 2 slidably installed within the housing 1. The refill assembly 2 includes a tape head 21, and double-sided tape is wound around the tape head 21 within the refill assembly 2. The housing 1 has a first opening 11 for the tape head 21 to extend and retract. The refill assembly 2 achieves the extension and retraction of the tape head 21 by sliding. The housing 1 is equipped with a drive member 4 and an elastic limiting structure 12 that are pulsatingly connected to the refill assembly 2. The user can drive the refill assembly 2 to slide outward by applying force to the drive member 4, thereby causing the tape head 21 to extend out of the first opening 11. The refill assembly 2 and the elastic limiting structure 12 are connected by a connecting part 31. The connecting part 31 cooperates with the elastic limiting structure 12 to limit the sliding of the refill assembly 2. Figure 2As shown, the head 211 of the adhesive tip 21 has a planar structure. When the user applies force to the driving member 4, the driving member 4 is driven by the force to slide the core assembly 2, causing the adhesive tip 21 to extend. The connecting part 31 is driven by the force to slide relative to the elastic limiting structure 12. When the user releases the driving member 4, the connecting part 31 is slidably limited by the force of the elastic limiting structure 12, so that the adhesive tip 21 remains in the extended state. By the force of the adhesive tip 21 against the surface of the adhesive to be used, the double-sided adhesive of the head 211 of the adhesive tip 21 is adhered to the surface of the adhesive to be used. The force of the adhesive tip 21 overcomes the force of the elastic limiting structure 12, thereby driving the core assembly 2 to slide back and reset. It should be noted that in this embodiment, the head 211 of the adhesive tip 21 has a square planar structure, but it can also be a circular, polygonal or other planar structure.

[0060] like Figure 6 As shown, the elastic limiting structure 12 and the connecting part 31 cooperate to keep the glue head 21 in an extended state. The user presses the double-sided adhesive of the glue head 211 against the surface of the adhesive to be used, allowing the glue head 211 to be directly pressed onto the surface. The relative force exerted by the adhesive surface on the glue head 21 causes it to automatically retract. This resets the glue head 21, the replacement core assembly 2, and the driving component 4 without user intervention. Compared to technical solutions that require constant pressing to keep the glue head 21 extended, this method is more labor-saving. The glue head 211 is designed as a flat structure to better adhere to the surface of the adhesive to be used, allowing the double-sided adhesive of the glue head 211 to be directly adhered to the surface by pressing. Compared to cylindrical or pointed adhesive tips 21, which require the tip 211 to be pressed tightly against the surface of the adhesive to slide the dispensing device and complete the application, this method is more labor-saving, provides better adhesion to the surface of the adhesive, offers a better field of vision, and allows for more precise use. In actual use, the user only needs to apply force to the drive component 4 once to extend the adhesive tip 21. With the cooperation of the elastic limiting structure 12 and the connecting part 31, the user can release the drive component 4, and the adhesive tip 21 will remain extended. The user can then press the tip 211 against the surface of the adhesive and apply double-sided adhesive to it. At the same time, the adhesive tip 21 will retract under pressure, causing the replacement core assembly 2 and the drive component 4 to automatically reset for the next use.

[0061] More specifically, such as Figure 2 and Figure 3 As shown, the head 211 of the adhesive pad 21 is equipped with an elastic pad 212. The elastic pad 212 is located between the double-sided tape and the head 211 of the adhesive pad 21, which makes the head 211 of the adhesive pad 21 better adhere to the surface of the adhesive to be used, and the double-sided tape is more reliably adhered to the surface of the adhesive to be used. In addition, the elastic pad 212 can better protect the double-sided tape and prevent the double-sided tape from breaking.

[0062] More specifically, such as Figure 2 and Figure 3 As shown, the refill assembly 2 includes a core ring 22 and a take-up ring 23. A tape roll 24 is mounted on the core ring 22. The double-sided tape of the tape roll 24 passes over the dispensing head 21 and is wound onto the take-up ring 23. The core ring 22 is connected to a first gear 25, and the take-up ring 23 is connected to a second gear 26. The first gear 25 and the second gear 26 mesh and drive each other. The dispensing device uses the principle of correcting tape feeding and take-up to feed the double-sided tape. The core ring 22 is used to install the double-sided tape, and the take-up ring 23 is used to collect the used double-sided tape. The feeding and take-up of the double-sided tape is achieved through the cooperation of the first gear 25 and the second gear 26. Figure 4 and Figure 5 As shown, a one-way transmission member 5 connected to the first gear 25 or the second gear 26 is installed inside the outer casing 1. When the core assembly 2 slides outward, both the first gear 25 and the second gear 26 slide outward relative to the one-way transmission member 5. The one-way transmission member 5 has a relative force with the first gear 25 or the second gear 26, thereby driving the first gear 25 or the second gear 26 to rotate. When the one-way transmission member 5 is connected to the first gear 25, the core assembly 2 drives the first gear 25 to slide outward relative to the one-way transmission member 5. The one-way transmission member 5 drives the first gear 25 to rotate in the direction of releasing the double-sided tape. Under the meshing action of the first gear 25 and the second gear 26, the second gear 26 rotates in the direction of retracting the double-sided tape, causing the glue dispenser to rotate. Each time the nozzle 21 extends, a new piece of double-sided tape is pulled out, and the double-sided tape is always in a taut state. When the one-way transmission component 5 is connected to the second gear 26, the core assembly 2 drives the second gear 26 to slide outward relative to the one-way transmission component 5. The one-way transmission component 5 drives the second gear 26 to rotate in the direction of retracting the double-sided tape. Under the meshing action of the first gear 25 and the second gear 26, the first gear 25 rotates in the direction of releasing the double-sided tape, so that the double-sided tape is always in a taut state. This ensures that each time the nozzle 21 extends, a new piece of double-sided tape is rotated to the head 211 of the nozzle 21, and the double-sided tape is always in a taut state. No further adjustment is required from the user, making it more labor-saving and convenient to use, and providing a better user experience.

[0063] More specifically, such as Figure 4 and Figure 5As shown, the one-way transmission component 5 is a rack and pinion structure, which meshes with the first gear 25. When the core assembly 2 slides to extend the adhesive head 21, the first gear 25 rotates in the direction of releasing the double-sided tape under the action of the rack and pinion structure. The second gear 26 rotates in the opposite direction under the action of the first gear 25 to retract the double-sided tape. The one-way transmission component 5 is a rack and pinion structure that meshes with the first gear 25. When the driving component 4 is forced to push the core assembly 2 to slide outward to extend the adhesive head 21, the core assembly 2 drives the first gear 25 to slide outward relative to the rack and pinion structure. The rack and pinion structure interact with the first gear 25, causing the first gear 25 to rotate in the direction of releasing the double-sided tape. The new double-sided tape rotates to the head 211 of the adhesive head 21. Through the meshing action of the first gear 25 and the second gear 26, the second gear 26 rotates in the direction of retracting the double-sided tape. The old double-sided tape is retracted by the tape retractor 23. The double-sided tape is always in a tightened state. The rack and pinion structure is simple, more labor-saving and convenient to use, and provides a better user experience.

[0064] More specifically, such as Figure 2 and Figure 3 As shown, the core replacement assembly 2 includes a core holder 27 and a gear holder 28. The core ring 22 and the take-up ring 23 are both mounted on the core holder 27. The first gear 25 and the second gear 26 are both mounted on the gear holder 28. The gear holder 28 is provided with a first one-way ratchet 281 adapted to the first gear 25, and / or a second one-way ratchet 281 adapted to the second gear 26. The core ring 22 and the take-up ring 23 are mounted via the core holder 27, and the first gear 25 and the second gear 26 are mounted via the gear holder 28. The core ring 22 and the first gear 26... 5. The upper and lower sleeves are connected, with the tape retractor 23 and the second gear 26 sleeved together. The installation structure is simple and reliable. Furthermore, by setting the first one-way ratchet 281 and / or the second one-way ratchet on the gear seat 28, the first gear 25 can only rotate in the direction of releasing the double-sided tape, and the second gear 26 can only rotate in the direction of retracting the double-sided tape. This prevents the first gear 25 or the second gear 26 from rotating due to the action of the one-way transmission member 5 when the core assembly 2 slides and resets, thus ensuring that the double-sided tape will not rotate and retract. The double-sided tape always rotates in a single direction, making it more reliable in use.

[0065] More specifically, such as Figure 2 , Figure 4 , Figure 5 and Figure 10As shown, an inner housing 3 adapted to the refill assembly 2 is slidably installed inside the outer housing 1. The refill assembly 2 is detachably installed inside the inner housing 3. The refill assembly 2 is connected to the drive component 4 through the inner housing 3. The connecting part 31 is provided on the outer wall of the inner housing 3. The inner housing 3 can be a part of the refill assembly 2. The refill assembly 2 is connected to the elastic limiting structure 12 through the inner housing 3. The drive component 4, one-way transmission component 5, and other components are all installed inside the housing. The refill assembly 2 is detachably installed by setting the inner housing 3. The drive component 4 drives the inner housing 3 to slide inside the outer housing 1, thereby causing the refill assembly 2 to extend and retract. The connecting part 31 is located on the outer wall of the inner housing 3. The refill assembly 2 can be replaced individually by the connecting part 31 of the inner housing 3 and the elastic limiting structure 12. After the double-sided tape is used up, the user can remove the refill assembly 2 from the inner housing 3 and replace it with a new refill assembly 2 without affecting the use of other components. This improves the utilization rate of the dispensing device, reduces the cost of use, and saves effort and resources when replacing it.

[0066] More specifically, such as Figure 4 and Figure 5 As shown, the connecting part 31 is a protruding structure provided on the outer side wall of the inner housing 3, such as Figure 1 and Figure 6 As shown, the elastic limiting structure 12 is an elastic slide rail structure set on the side wall of the outer shell 1. The elastic slide rail structure clamps the protruding structure from the top and bottom to limit the sliding of the core assembly 2. The elastic slide rail structure is set along the length direction of the dispensing nozzle. The connecting part 31 is a protruding structure and the elastic limiting structure 12 is an elastic slide rail structure. The elastic slide rail structure clamps the protruding structure from the top and bottom with elastic force to limit the sliding of the core assembly 2. When the driving member 4 drives the core assembly 2 to slide, the driving force is greater than the elastic force of the elastic limiting structure 12. The connecting part 31 can slide along the elastic limiting structure 12 under the force of the core assembly 2. When the core assembly 2 is not driven, the connecting part 31 is limited by the elastic force of the elastic limiting structure 12, so that the core assembly 2 is limited to slide, thereby keeping the dispensing head 21 in an extended or retracted state. The structure is simple and easy to use.

[0067] More specifically, such as Figures 1 to 7As shown, the driving component 4 is provided with an operating part 41 for the user to apply force, and the outer shell 1 is provided with a second opening 13 for the operating part 41 to pass through. The driving component 4 is also provided with a transmission part 42, and the inner shell 3 is provided with a guide part 32 that cooperates with the transmission part 42. When the user applies force to the operating part 41, the operating part 41 drives the driving component 4 to move. The driving component 4 acts on the guide part 32 through the transmission part 42, causing the inner shell 3 and the core assembly 2 to slide outward to extend the rubber head 21. The operating part 41 of the driving component 4 extends out through the second opening 13 to be exposed outside the outer shell 1. The device allows the user to apply force to the operating part 41 to drive the drive member 4. By setting a transmission part 42 in the drive member 4 and a guide part 32 in the inner housing 3, the inner housing 3 and the core assembly 2 slide and extend through the force applied to the transmission part 42 and the guide part 32. When the user applies force to the operating part 41, the operating part 41 drives the drive member 4 to move. The drive member 4 drives the transmission part 42 and the guide part 32 to cooperate. The guide part 32 is forced to drive the inner housing 3 to slide the core assembly 2 to extend the rubber head 21. The structure is simple and the transmission efficiency is high.

[0068] Example 2

[0069] like Figure 7As shown, this embodiment provides a double-sided tape dispenser based on Embodiment 1. The double-sided tape dispenser has the same structure as Embodiment 1. The outer shell 1 has a third opening 14 on its side wall corresponding to the connecting portion 31. A first elastic rib 141 is provided within the third opening 14, dividing it vertically into a running groove 142 and a clearance groove 143. The running groove 142 is configured as an elastic limiting structure 12. The first elastic rib 141 forms an inverted U-shape within the third opening 14, making the dimensions at both ends of the running groove 142 larger than... The dimension of the middle of the running groove 142 is determined by a third opening 14 with a first elastic rib 141. The first elastic rib 141 divides the third opening 14 into upper and lower parts. The first elastic rib 141 and the upper part of the third opening 14 cooperate to form the running groove 142. This running groove 142 is used to insert the connecting part 31. The running groove 142 is configured as an elastic limiting structure 12. The connecting part 31 is clamped by the upper and lower parts of the running groove 142. Under the action of driving force, the connecting part 31 can cause the elastic limiting structure 12 to deform, thereby... The elastic limiting structure 12 slides within the space. The first elastic rib 141 cooperates with the third opening 14 in the lower half to form a clearance groove 143. This clearance groove 143 provides space for the first elastic rib 141 to deform elastically, allowing the connecting part 31 to slide smoothly within the running groove 142. When the rubber head 21 extends, the connecting part 31 is subjected to force, which causes the first elastic rib 141 to deform and slide along the running groove 142. When the rubber head 21 extends to the end, the connecting part 31 slides to one end of the running groove 142. When the rubber head 21 retracts, the connecting part 31 is subjected to force. The first elastic rib 141 can deform and slide in the opposite direction along the running groove 142. When the rubber head 21 retracts back into place, the connecting part 31 slides to the other end of the running groove 142. When the connecting part 31 slides to both ends of the running groove 142, the sliding limit of the rubber head 21 must be maintained. By setting the width of both ends of the running groove 142 to be greater than the width of the middle of the running groove 142, the clamping effect of the connecting part 31 at both ends of the running groove 142 can be better, and the user can feel the damping when operating the rubber head 21 to extend and retract, resulting in a better user experience.

[0070] Example 3

[0071] like Figure 8As shown, this embodiment provides a double-sided tape dispenser based on Embodiment 1. The double-sided tape dispenser has the same structure as Embodiment 1. The outer shell 1 has a fifth opening 16 on its side wall corresponding to the connecting part 31. Two second elastic ribs 161 are provided within the fifth opening 16, forming an elastic slide rail structure between them. The dimensions at both ends of the elastic slide rail structure are larger than the dimensions in the middle. By providing two second elastic ribs 161 within the fifth opening 16, a channel is formed between the two second elastic ribs 161 for the connecting part 31 to be inserted. This channel is the elastic slide rail structure. The two second elastic ribs 161 clamp the connecting part 31 vertically and vertically through elastic force, thus limiting the sliding movement of the connecting part 31. The upper and lower parts of the fifth opening 16 provide space for the elastic deformation of the two second elastic ribs 161, allowing the connecting part 31 to... The elastic slide rail structure allows for smooth sliding. When the rubber head 21 extends, the connecting part 31 is subjected to force, causing the two second elastic ribs 161 to deform and slide along the elastic slide rail structure. When the rubber head 21 extends to its full position, the connecting part 31 slides to one end of the elastic slide rail structure. When the rubber head 21 retracts, the connecting part 31 is subjected to force, causing the two second elastic ribs 161 to deform and slide in the opposite direction along the elastic slide rail structure. When the rubber head 21 retracts to its full position, the connecting part 31 slides to the other end of the elastic slide rail structure. The connecting part 31 must maintain the sliding limit of the rubber head 21 when sliding to both ends of the elastic slide rail structure. By setting the size at both ends of the elastic slide rail structure to be larger than the size in the middle of the elastic slide rail structure, the clamping effect of the connecting part 31 at both ends of the elastic slide rail structure can be improved, and the user can feel the damping when operating the extension and retraction of the rubber head 21, resulting in a better user experience.

[0072] Example 4

[0073] like Figures 3 to 5As shown, this embodiment provides a double-sided tape dispenser based on any one of Embodiments 1 to 3. The double-sided tape dispenser has the same structure as the embodiments referenced in Embodiments 1 to 3. Specifically, the driving component 4 is rotatably connected to the outer shell 1, the transmission part 42 is a hook structure, and the connecting part 31 is configured as a guide part 32. The connecting part 31 slides in conjunction with the hook structure. The driving component 4 is connected to an elastic reset component 6, which rotates and resets the driving component 4. In this embodiment, the elastic reset component 6 is a torsion spring. The driving component 4 is rotatably connected to the outer shell 1, and the user can rotate the driving component 4 relative to the outer shell 1 by applying force to the operating part 41. The drive mechanism 4 is driven by the rotation of the outer shell 1, which in turn drives the inner shell 3 and the replacement core assembly 2 to slide. The transmission part 42 of the drive mechanism 4 is a hook structure, and the guide part 32 of the inner shell 3 is a connecting part 31. The connecting part 31 is a protruding structure and is slidably engaged with the hook structure. When the user presses the operation part 41, the drive mechanism 4 is driven by the pressing force to rotate the hook structure. The hook structure exerts a relative force on the connecting part 31, thereby driving the inner shell 3 to slide the replacement core assembly 2 outward to extend the rubber head 21. When the user releases the operation part 41, the drive mechanism 4 is automatically reset by the elastic reset part 6 for the next use. The structure is simple and the transmission efficiency is high.

[0074] More specifically, such as Figure 4 , Figure 5 and 11As shown, the one-way transmission component 5 includes a rack connecting arm 51 and multiple bent elastic racks 52. The one-way transmission component 5 is installed inside the housing 1 via the rack connecting arm 51. The bent elastic racks 52 include a first segment 521 near the rack connecting arm 51 and a second segment 522 away from the rack connecting arm 51. The first segment 521 of the bent elastic rack 52 is connected to the rack connecting arm 51 to form an integral structure. The second segment 522 of the bent elastic rack 52 meshes with the first gear 25 to drive the first gear. As the wheel 25 rotates, the inner wall of the outer casing 1 is provided with multiple limiting protrusions 15 that are adapted to the bending elastic rack 52. The limiting protrusions 15 are interspersed with the first segment 521 of the bending elastic rack 52, and the limiting protrusions 15 abut against the side wall of the first segment 521 of the bending elastic rack 52 in the opposite bending direction. The inner wall of the outer casing 1 is provided with multiple limiting protrusions 15 that are interspersed with the first segment 521 of the bending elastic rack 52, and the first segment 521 of each bending elastic rack 52 is in the opposite bending direction. Each side of the bending elastic rack 52 is abutted by a limiting protrusion 15 to prevent reverse deformation. The bending elastic rack 52 can drive the first gear 25 to rotate in a single direction more efficiently. When the core assembly 2 slides out of the rubber head 21, the second segment 522 of the bending elastic rack 52 interacts with the first gear 25. The bending elastic rack 52 drives the first gear 25 to rotate in the direction of releasing the double-sided tape, so that each time the rubber head 21 extends, a new double-sided tape is rotated to the head 211 of the rubber head 21. When the core assembly 2 slides back to the rubber head 21, the first gear 25 interacts with the second segment 522 of the bending elastic rack 52. The bending elastic rack 52 avoids the first gear 25 by deforming the second segment 522 in the bending direction, so that the first gear 25 does not rotate around its own axis, thereby ensuring that the double-sided tape will not rotate back. Even without a one-way ratchet structure in the gear seat 28, the double-sided tape can always rotate in a single direction, making it more reliable.

[0075] Example 5

[0076] like Figure 12 and Figure 13As shown, this embodiment provides a double-sided tape dispenser based on any one of Embodiments 1 to 3. The double-sided tape dispenser has the same structure as the embodiments referenced in Embodiments 1 to 3. The driving component 4 is slidably connected to the outer shell 1. The user can apply force to the operating part 41 to make the driving component 4 slide relative to the outer shell 1. The outer shell 1 drives the inner shell 3 and the core assembly 2 to slide by sliding. The transmission part 42 is a slider structure, and the guide part 32 is an inclined slide rail structure. The slider structure and the inclined slide rail structure are slidably engaged. The driving component 4 is connected to the elastic reset component 6. The driving component 4 slides and resets through the elastic reset component 6. In this embodiment, the elastic reset component 6 is a spring. When the user applies force to the operating part 41, the driving component 4 is driven by the force to slide the slider structure towards the core assembly 2. The slider structure abuts against the inclined slide rail structure and has a relative force, thereby driving the inner housing 3 to slide the core assembly 2 outward to extend the rubber head 21. When the user releases the operating part 41, the driving component 4 automatically resets through the elastic reset component 6 for the next use. The structure is simple and the transmission efficiency is high.

[0077] More specifically, such as Figure 13 As shown, the driving component 4 and the one-way transmission component 5 are an integral structure. The driving component 4 extends towards the first gear 25 to form a rod. The one-way transmission component 5 is a rack structure set on the rod. The integral structure of the driving component 4 and the one-way transmission component 5 makes the installation of the driving component 4 and the guide transmission structure easier and more convenient. Furthermore, the one-way transmission component 5 is a rack structure set on the rod of the driving component 4. When the user applies force to the operating part 41, the driving component 4 is forced to slide towards the core assembly 2, causing the rack structure to slide to mesh with the first gear 25. At this time, the elastic reset component 6 is in a compressed state. While the driving component 4 drives the core assembly 2 to slide, the rack structure meshes with the first gear 25. The gear 25 has a relative force, and the rack structure drives the first gear 25 to rotate in the direction of releasing the double-sided tape, so that each time the tape head 21 extends, a new double-sided tape is rotated to the head 211 of the tape head 21. When the user releases the operating part 41, the driving member 4 slides back to its original position under the action of the elastic reset member 6, so that the rack structure slides back to its original position. The rack structure disengages from the first gear 25 to avoid the first gear 25, so that the first gear 25 does not rotate when the core assembly 2 slides back to the tape head 21, thereby ensuring that the double-sided tape will not rotate back. Even without a one-way ratchet structure in the gear seat 28, the double-sided tape can always rotate in a single direction, making it more reliable.

[0078] More specifically, the drive component 4 is slidably connected to the outer casing 1, and the operating part 41 is slidably connected to the second opening 13. The operating part 41 is in the shape of a toggle switch, so that the user can apply force to operate the drive component 4 to slide. The structure is simple.

[0079] Example 6

[0080] like Figure 14 and Figure 15 As shown, this embodiment provides a double-sided tape dispenser based on any one of Embodiments 1 to 3. The double-sided tape dispenser has the same structure as the embodiments referenced in Embodiments 1 to 3. The driving component 4 is slidably connected to the outer shell 1. The user can apply force to the operating part 41 to make the driving component 4 slide relative to the outer shell 1. The outer shell 1 drives the inner shell 3 and the core assembly 2 to slide by sliding. The transmission part 42 is a slider structure, and the guide part 32 is an inclined slide rail structure. The slider structure and the inclined slide rail structure are slidably engaged. The driving component 4 is connected to the elastic reset component 6. The driving component 4 slides and resets through the elastic reset component 6. In this embodiment, the elastic reset component 6 is a spring. When the user applies force to the operating part 41, the driving component 4 is driven by the force to slide the slider structure towards the core assembly 2. The slider structure abuts against the inclined slide rail structure and has a relative force, thereby driving the inner housing 3 to slide the core assembly 2 outward to extend the rubber head 21. When the user releases the operating part 41, the driving component 4 automatically resets through the elastic reset component 6 for the next use. The structure is simple and the transmission efficiency is high.

[0081] More specifically, such as Figure 15 As shown, the driving component 4 and the one-way transmission component 5 are an integral structure. The driving component 4 extends towards the first gear 25 to form a rod. The one-way transmission component 5 is a rack structure set on the rod. The integral structure of the driving component 4 and the one-way transmission component 5 makes the installation of the driving component 4 and the guide transmission structure easier and more convenient. Furthermore, the one-way transmission component 5 is a rack structure set on the rod of the driving component 4. When the user applies force to the operating part 41, the driving component 4 is forced to slide towards the core assembly 2, causing the rack structure to slide to mesh with the first gear 25. At this time, the elastic reset component 6 is in a compressed state. While the driving component 4 drives the core assembly 2 to slide, the rack structure meshes with the first gear 25. The gear 25 has a relative force, and the rack structure drives the first gear 25 to rotate in the direction of releasing the double-sided tape, so that each time the tape head 21 extends, a new double-sided tape is rotated to the head 211 of the tape head 21. When the user releases the operating part 41, the driving member 4 slides back to its original position under the action of the elastic reset member 6, so that the rack structure slides back to its original position. The rack structure disengages from the first gear 25 to avoid the first gear 25, so that the first gear 25 does not rotate when the core assembly 2 slides back to the tape head 21, thereby ensuring that the double-sided tape will not rotate back. Even without a one-way ratchet structure in the gear seat 28, the double-sided tape can always rotate in a single direction, making it more reliable.

[0082] More specifically, the drive component 4 is slidably connected to the outer shell 1, and the operating part 41 is slidably connected to the second opening 13. The operating part 41 is button-shaped so that the user can apply force to operate the drive component 4 to slide, and the structure is simple.

[0083] Example 7

[0084] like Figure 2 , Figure 3 , Figure 9 and Figure 10 As shown, this embodiment provides a double-sided tape dispenser based on any one of embodiments four to six. The double-sided tape dispenser has the same structure as the embodiments referenced in embodiments four to six. One side of the inner housing 3 is connected to the driving component 4, and the other side of the inner housing 3 has a fourth opening 33 adapted to the replacement core assembly 2. The replacement core assembly 2 can enter and exit the inner housing 3 through the fourth opening 33. The outer wall of the replacement core assembly 2 has an elastic protrusion 29, and the inner housing 3 has a mounting hole 34 adapted to the elastic protrusion 29. The elastic protrusion 29 is inserted into the mounting hole 34 to... The replacement core assembly 2 is confined within the inner housing 3. The inner housing 3 is configured to install the replacement core assembly 2 through a fourth opening 33 on the side away from the drive component 4. The replacement core assembly 2 can enter and exit the inner housing 3 through the fourth opening 33, so that the user can easily remove and replace the replacement core assembly 2 through the fourth opening 33. The fourth opening 33 is set away from the drive component 4 to avoid interference when the replacement core assembly 2 enters and exits, making replacement easier and more convenient. After the replacement core assembly 2 enters the inner housing 3, it is limited by the elastic protrusion 29 inserted into the mounting hole 34 to prevent the replacement core assembly 2 from automatically detaching from the inner housing 3, thereby improving the structural installation stability.

[0085] More specifically, a flip cover 7 is provided on the side of the outer shell 1 near the fourth opening 33. One end of the flip cover 7 is rotatably connected to the outer shell 1. The flip cover 7 can be rotated outward to open and expose the fourth opening 33. The other end of the flip cover 7 is elastically fastened to the outer shell 1. The flip cover 7 and the outer shell 1 are connected and closed by the elastic fastener. The user can release the fastener lock by applying force to the other end of the flip cover 7. One end of the flip cover 7 is rotatably connected to the outer shell 1, and the other end is elastically fastened to the outer shell 1. The user can release the fastener lock by pressing the other end of the flip cover 7. Rotating the flip cover 7 outward will expose the fourth opening 33. The user can directly take out or insert the replacement core assembly 2 through the fourth opening 33. It is simple and effortless to use, and it is more convenient to replace the replacement core assembly 2.

[0086] This invention is not limited to the preferred embodiments described above. Anyone can derive other products in various forms under the guidance of this invention. However, regardless of any changes in shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this invention.

Claims

1. A double-sided tape dispenser, comprising a housing (1), characterized in that, It also includes a core-sliding assembly (2) slidably installed inside the outer casing (1). The core-sliding assembly (2) includes a rubber head (21). Double-sided tape is wrapped around the rubber head (21) and wound inside the core-sliding assembly (2). The outer casing (1) is provided with a first opening (11) for the extension and retraction of the rubber head (21). The head (211) of the rubber head (21) is a planar structure. The outer casing (1) is equipped with a drive component (4) and an elastic limiting structure (12) that are connected to the core-sliding assembly (2). The core-sliding assembly (2) and the elastic limiting structure (12) are connected by a connecting part (31). The connecting part (31) cooperates with the elastic limiting structure (12) to limit the sliding movement of the core-sliding assembly (2). When the user applies force to the drive member (4), the drive member (4) is forced to drive the core assembly (2) to slide, causing the glue head (21) to extend. The connecting part (31) is forced to slide relative to the elastic limiting structure (12). When the user releases the drive member (4), the connecting part (31) is slid and limited by the force of the elastic limiting structure (12), so that the glue head (21) remains extended. The glue head (21) is forced to abut against the surface of the adhesive to be used, so that the double-sided adhesive of the head (211) of the glue head (211) is pasted on the surface of the adhesive to be used. The glue head (21) is forced to overcome the force of the elastic limiting structure (12), thereby driving the core assembly (2) to slide back and reset.

2. The double-sided tape dispenser according to claim 1, characterized in that, The replacement core assembly (2) includes a core ring (22) and a take-up ring (23). A tape roll (24) is mounted on the core ring (22). The double-sided tape of the tape roll (24) passes around the head (21) and is wound on the take-up ring (23). The core ring (22) is connected to a first gear (25), and the take-up ring (23) is connected to a second gear (26). The first gear (25) and the second gear (26) mesh and drive each other.

3. A double-sided adhesive dispenser according to claim 2, characterized in that, The outer casing (1) is equipped with a one-way transmission member (5) connected to the first gear (25) or the second gear (26). When the core assembly (2) slides to extend the rubber head (21), the core assembly (2) slides outward relative to the one-way transmission member (5). The one-way transmission member (5) drives the first gear (25) or the second gear (26) to rotate, so that the rubber core ring (22) rotates to release the double-sided tape, and at the same time the tape take-up ring (23) rotates in the opposite direction to retract the double-sided tape.

4. A double-sided tape dispenser according to claim 3, characterized in that, The one-way transmission component (5) is a rack structure, which meshes with the first gear (25). When the core assembly (2) slides to extend the rubber head (21), the first gear (25) rotates in the direction of releasing the double-sided tape under the action of the rack structure, and the second gear (26) rotates in the opposite direction under the action of the first gear (25) to retract the double-sided tape.

5. A double-sided adhesive dispenser according to claim 3, characterized in that, The one-way transmission component (5) includes a rack connecting arm (51) and multiple bent elastic racks (52). The inner wall of the outer shell (1) is provided with multiple limiting protrusions (15) adapted to the bent elastic racks (52). The bent elastic racks (52) and the limiting protrusions (15) are interspersed.

6. A double-sided adhesive dispenser according to claim 3, characterized in that, The driving component (4) and the one-way transmission component (5) are an integral structure. The driving component (4) extends towards the first gear (25) to form a rod. The one-way transmission component (5) is a rack structure set on the rod.

7. A double-sided adhesive dispenser according to claim 3, characterized in that, The core replacement assembly (2) includes a core holder (27) and a gear holder (28). The core ring (22) and the take-up ring (23) are both mounted on the core holder (27). The first gear (25) and the second gear (26) are both mounted on the gear holder (28). The gear holder (28) is provided with a first one-way ratchet (281) adapted to the first gear (25), and / or, the gear holder (28) is provided with a second one-way ratchet adapted to the second gear (26).

8. A double-sided adhesive dispenser according to claim 1, characterized in that, The outer shell (1) is also slidably installed with an inner shell (3) adapted to the core replacement assembly (2). The core replacement assembly (2) is detachably installed in the inner shell (3). The core replacement assembly (2) is connected to the driving component (4) through the inner shell (3). The connecting part (31) is provided on the outer wall of the inner shell (3). The core replacement assembly (2) is connected to the elastic limiting structure (12) through the inner shell (3).

9. A double-sided adhesive dispenser according to claim 8, characterized in that, The connecting part (31) is a protrusion structure provided on the outer side wall of the inner shell (3), and the elastic limiting structure (12) is an elastic slide rail structure provided on the side wall of the outer shell (1). The elastic slide rail structure clamps the protrusion structure from the top and bottom so that the core assembly (2) slides and is limited. The elastic slide rail structure is provided along the length direction of the glue dispenser. When the core assembly (2) is subjected to force and slides, the protrusion structure is subjected to force and slides along the elastic slide rail structure.

10. A double-sided adhesive dispenser according to claim 9, characterized in that, The outer shell (1) has a third opening (14) on its side wall corresponding to the connecting part (31). The third opening (14) has a first elastic rib (141) inside. The first elastic rib (141) divides the third opening (14) into an operating groove (142) and an air-avoiding groove (143) on the upper and lower sides. The operating groove (142) is configured as an elastic limiting structure (12).

11. A double-sided tape dispenser according to claim 10, characterized in that, The first elastic rib (141) is in an inverted U-shape inside the third opening (14), and the width of the two ends of the running groove (142) is greater than the width of the middle of the running groove (142).

12. A double-sided tape dispenser according to claim 9, characterized in that, The outer shell (1) has a fifth opening (16) on its side wall corresponding to the connecting part (31). The fifth opening (16) has two second elastic ribs (161) inside. An elastic slide rail structure is formed between the two second elastic ribs (161). The dimensions at both ends of the elastic slide rail structure are larger than the dimensions in the middle of the elastic slide rail structure.

13. A double-sided adhesive dispenser according to claim 8, characterized in that, The drive unit (4) is provided with an operating part (41) for the user to apply force. The outer shell (1) is provided with a second opening (13) for the operating part (41) to pass through. The drive unit (4) is also provided with a transmission part (42). The inner shell (3) is provided with a guide part (32) that cooperates with the transmission part (42). When the user applies force to the operating part (41), the operating part (41) drives the drive unit (4) to move. The drive unit (4) acts on the guide part (32) through the transmission part (42), so that the inner shell (3) and the core assembly (2) slide outward to extend the rubber head (21).

14. A double-sided tape dispenser according to claim 13, characterized in that, The driving component (4) is rotatably connected to the outer shell (1). The transmission part (42) is a hook structure. The connecting part (31) is configured as a guide part (32). The connecting part (31) and the hook structure are slidably engaged. When the user applies force to the operating part (41), the driving component (4) is forced to rotate the hook structure, so that the hook structure and the connecting part (31) slide relative to each other, thereby driving the inner shell (3) and the core assembly (2) to slide outward to extend the rubber head (21). The driving component (4) is connected to an elastic reset component (6). The driving component (4) is reset by rotating the elastic reset component (6).

15. A double-sided tape dispenser according to claim 13, characterized in that, The driving component (4) is slidably connected to the outer shell (1). The transmission part (42) is a slider structure, and the guide part (32) is an inclined slide rail structure. The slider structure and the inclined slide rail structure are slidably engaged. When the user applies force to the operating part (41), the driving component (4) is forced to slide, causing the slider structure and the inclined slide rail structure to slide relative to each other, thereby driving the core assembly (2) to slide outward to extend the rubber head (21). The driving component (4) is connected to an elastic reset component (6), and the driving component (4) is slidably reset through the elastic reset component (6).

16. A double-sided tape dispenser according to claim 13, characterized in that, The operating part (41) is slidably connected to the second opening (13). The operating part (41) is either a toggle or a button.

17. A double-sided tape dispenser according to claim 8, characterized in that, One side of the inner housing (3) is connected to the drive component (4) for transmission. The other side of the inner housing (3) is provided with a fourth opening (33) adapted to the core replacement assembly (2). The core replacement assembly (2) can enter and exit the inner housing (3) through the fourth opening (33). The outer wall of the core replacement assembly (2) is provided with an elastic protrusion (29). The inner housing (3) is provided with a mounting hole (34) adapted to the elastic protrusion (29). The core replacement assembly (2) is confined within the inner housing (3) by inserting the elastic protrusion (29) into the mounting hole (34).

18. A double-sided tape dispenser according to claim 17, characterized in that, The outer shell (1) is provided with a flip cover (7) on the side near the fourth opening (33). One end of the flip cover (7) is rotatably connected to the outer shell (1), and the other end of the flip cover (7) is elastically snapped to the outer shell (1).

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