Decoration clamping device for pen and pen

Abstract

The clamping device comprises a clamping mechanism, a stop mechanism, a push rod, a limiting mechanism, a base and an elastic mechanism, by applying downward pressure, the clamping device is changed from a folded state to an unfolded state so as to clamp a target ornament, and after the downward pressure disappears by loosening the clamping device, the target ornament is clamped by the elastic mechanism. The clamping device automatically clamps a target ornament by means of deformation restoring force of the elastic mechanism, linear pressing motion of the push rod is converted into control force to the interior of the clamping piece through the limiting mechanism, and resetting of the elastic mechanism is converted into control force to the exterior of the clamping piece through the push rod. The opening and closing states of the clamping pieces are precisely regulated and controlled through the internal and external synergistic effect; the interactive design conforming to the operation intuition of the user that opening is achieved after pressing is conducted and closing is achieved after loosening is conducted brings pleasant operation experience and reliable psychological expectation to the user.

Description

Technical Field

[0001] This patent relates to the field of stationery and ornaments technology, and in particular to a decorative clamping device for pens and pens. Background Technology

[0002] In today's market environment that emphasizes individual expression and emotional consumption, people, especially young consumers, are no longer satisfied with the basic function of writing tools. They tend to use them as a vehicle to showcase their personal taste and emotions. Therefore, adorning pens with various three-dimensional decorations, such as trendy toys, blind box figurines, and anime character models, has become a popular trend. These decorations not only enhance the aesthetics and fun of the pens but also strengthen the emotional connection and user experience.

[0003] However, securing these three-dimensional decorative items firmly and aesthetically to pens while ensuring easy replacement and protecting the item itself has long been an unresolved technical challenge. Traditional fixing methods have many inherent flaws, severely impacting user experience and preserving the value of the decorative items.

[0004] The most common method is to use adhesive to directly attach the decoration to the pen barrel or cap. While this method is simple, the damage is irreversible. Glue residue will permanently stain the bottom of the decoration, and if the user wants to replace or temporarily remove the decoration, it will often cause damage to the paint or leave stubborn stains, thus diminishing the value of the exquisite collectible.

[0005] More importantly, this method loses flexibility; once the decorations are pasted on, they are difficult to remove without damage, failing to meet users' needs for variety and the ability to change outfits according to mood or occasion.

[0006] Another relatively common practice is to use miniature screws for fixing, which involves drilling holes in the decorations and pens and tightening them with screws. While this method provides a high level of connection strength, the physical damage it causes to the decorations is permanent. The drilling process itself can create cracks or scratches, compromising the integrity of the decoration.

[0007] Meanwhile, the metal parts of the screws may rub against the decorative material, causing wear at the contact points. Furthermore, the screws may rust after prolonged use, further exacerbating contamination. In addition, frequent use of screwdrivers for installation and removal is extremely inconvenient, eliminating the pleasure of easy replacement.

[0008] While using chains or cords to suspend ornaments from pens avoids direct contact and fixation, the ornaments will swing around during writing, seriously interfering with writing stability and concentration. In addition, chains themselves are prone to tangling, making them less than ideal solutions.

[0009] Existing technologies also include some pen clip-based or elastic clip-based decorative solutions, but most of them are simple in design and have limited functionality. These solutions are usually only suitable for flat objects of specific shapes or sizes, such as business cards and papers, and are ineffective for trendy decorative items of various shapes, irregular shapes, and surfaces that require careful protection. The clamping force is either insufficient, making it easy for the item to fall off during carrying and resulting in loss; or it is designed to be too tight in pursuit of sturdiness, easily leaving unsightly clamp marks or scratches on the surface of the item when forcibly inserted or removed.

[0010] Furthermore, these traditional clamping structures are often crudely designed. After clamping decorative items, their mechanical structure is completely exposed or their shapes are inconsistent, lacking the aesthetic appeal of an overall display item. They usually need to be covered by pens or other items and cannot exist as an independent, well-designed display base.

[0011] Therefore, there is a need for a decorative clamping device and pen for use in pens, which should provide a secure grip like glue or screws, while also being as convenient and damage-free as picking up and putting down by hand; it should be able to adaptively grip three-dimensional objects of various shapes and sizes, while ensuring a gentle contact process that does not damage the delicate surface of the object; at the same time, the device itself should also have good form and stability, so that when combined with the decorative object, it can form a complete ornamental piece for viewing, rather than just a functional connecting component. Summary of the Invention

[0012] This invention aims to solve the technical problems of existing technologies that involve fixing three-dimensional decorative objects to pens, such as damage to the decorative objects, inconvenience in installation and removal, inability to adapt to diverse shapes, and lack of display value of the device itself. This patent provides the following technical solution:

[0013] A first aspect: providing a decorative object clamping device for use in pens, comprising: a clamping mechanism for clamping decorative objects, the clamping mechanism having an open state and a closed state; a driving component for driving the clamping mechanism to open or close; and a base for connecting the clamping mechanism to the pen.

[0014] Furthermore, the drive assembly includes: a stop mechanism that houses the clamping mechanism; a push rod that causes the clamping mechanism to open and close; a limiting mechanism that opens the clamping mechanism; and an elastic mechanism that closes the clamping mechanism. The limiting mechanism connects to the push rod and forms a non-closed receiving cavity. The stop mechanism and the clamping mechanism partially connected to the stop mechanism are disposed in the receiving cavity. The base is fitted into the base and forms a reset channel. The elastic mechanism is disposed within the reset channel. When downward pressure is applied to the clamping device, the push rod moves downward along the axial direction of the base, the elastic mechanism changes from an extended state to a compressed state, and the limiting mechanism moves downward synchronously until it abuts against the stop mechanism. The clamping mechanism changes from a closed state to an open state. When pressure is stopped on the clamping device... The elastic mechanism returns from a compressed state to an extended state. Under the action of the elastic mechanism, the push rod moves upward along the axial direction of the base, the limiting mechanism resets simultaneously, and the clamping mechanism changes from an open state to a closed state. The stop mechanism includes a shaft connection part, which has a snap-hole structure. The clamping mechanism is formed by clamping pieces. The clamping pieces are integrally molded. The clamping pieces include a claw part, an arm part, and a shaft part. The arm part has a bent structure. The claw part connects to the arm part so that the claw part closes and contacts the decoration. The shaft part is located at the end of the arm part. The shaft part is a horizontal shaft. After the shaft part matches the shaft connection part, the clamping piece rotates around the shaft connection part through the shaft part. The number of clamping pieces is equal to the number of shaft connection parts, and the number of clamping pieces is 2 to 6 pieces.

[0015] Furthermore, the stopping mechanism also includes a second through hole and a base connecting part, the base connecting part being disposed on the inner wall of the second through hole; the base is provided with an upper seat and a lower seat, the upper seat and the lower seat being integrally formed, and the top of the upper seat is provided with a stopping connecting part; when the stopping mechanism is connected to the base, the stopping connecting part enters the second through hole and connects with the base connecting part; the connection method between the stopping mechanism and the base is a snap connection or a threaded connection.

[0016] Furthermore, the lower seat includes a second locking protrusion and a pen connecting part. The second locking protrusion is disposed on the outer wall of the lower seat and is connected to the base fixing groove of the push rod; the pen connecting part is disposed on the inner wall of the lower seat and is connected to the pen.

[0017] Furthermore, the push rod also includes an upper rod and a lower rod, which are integrally formed; the bottom of the upper rod includes a limiting stop surface, and the limiting stop surface is provided with a limiting fixing groove; the length of the ornament is less than or equal to the diameter of the upper rod; the top of the upper rod is provided with a clamping stop edge, which abuts against the outer side of the arm; when the clamping mechanism is in the retracted state, the clamping stop edge is in line contact with the outer side of the arm; when the clamping mechanism is in the open state, the clamping stop edge is in surface contact with the outer side of the arm.

[0018] Furthermore, the lower rod is provided with a third through hole and an elastic top stop, with the elastic top stop located at the bottom of the third through hole; the base passes through the third through hole and enters the second through hole to connect with the stop mechanism; the upper seat is also provided with an elastic bottom stop, with the elastic bottom stop located at the bottom of the upper seat; the elastic top stop, the elastic bottom stop, the outer wall of the upper seat and the inner wall of the lower rod form a reset channel to accommodate the elastic mechanism.

[0019] Furthermore, the limiting mechanism includes a first through hole, a limiting support frame, and a support foot. The first through hole is located at the top of the limiting support frame, and the support foot is located at the bottom of the limiting support frame. The support foot includes a first locking protrusion, and the limiting fixing groove is connected to the first locking protrusion so that the limiting mechanism is connected to the push rod. The diameter of the first through hole is smaller than the diameter of the arm when the clamping mechanism is in the open state. The length of the bottom of the ornament is smaller than the diameter of the first through hole.

[0020] Furthermore, the push rod and / or limiting mechanism are used to withstand pressure; the push rod and / or limiting mechanism are equipped with a pressing key, when the pressing key is pressed, the clamping mechanism changes from the retracted state to the open state; when the pressing key is released, the clamping mechanism changes from the open state to the retracted state; the axial movement distance of the push rod sliding on the base is d1, and the remaining height of the receiving cavity after accommodating the stop mechanism in the retracted state is d2, d1=d2.

[0021] Furthermore, the decorations are three-dimensional decorations, and the decorations are one or more of the following: cute particles, trendy toys, blind boxes, or dolls.

[0022] Secondly, a pen is provided, which includes the aforementioned clamping device.

[0023] This patent has the following beneficial effects:

[0024] 1. This patent discloses a decorative object clamping device for pens and a pen. The clamping device includes a clamping mechanism, a stop mechanism, a push rod, a limiting mechanism, a base, and an elastic mechanism. The precise cooperation of these mechanisms enables the clamping device to have an open state and a closed state. By applying a downward pressure, the clamping device changes from the closed state to the open state to clamp the target decorative object. After the downward pressure is released from the clamping device, the clamping device automatically clamps the target decorative object by relying on the deformation restoring force of the elastic mechanism, thereby achieving the technical effect of convenient and easy replacement.

[0025] 2. In this patent, the entire clamping process relies entirely on the precise movement of mechanical components and the gentle control of the elastic mechanism, without involving any adhesive, perforation, or hard scraping fixing methods. When the user needs to install decorations, only a gentle downward pressure needs to be applied to the push rod or limiting mechanism. The push rod will then drive the limiting mechanism fixed to it to move smoothly downward along the axial direction of the base. During this process, the stop edge of the limiting mechanism moves downward simultaneously, contacting and pushing the inner side of the clamping mechanism arm, forcing multiple clamping pieces to gracefully rotate outward around their axis within the shaft connection of the stop mechanism, like a flower blooming, thus forming an open space that is easy to place decorations in. After the decorations are properly placed, the pressure is released, and the built-in elastic mechanism instantly releases its stored potential energy, pushing the push rod upward back. As the push rod rises, the clamping edge or limiting stop at its top moves upward, adhering to and pushing the outer side of the clamping plate arm. This drives all the clamping plates to rotate inward synchronously and retract, with the claws at their ends providing a uniform and gentle enveloping force to firmly hold the ornament. Throughout this opening and closing process, the contact between the clamping plates and the ornament is a controllable, linear-surface transitional rolling or sliding contact, rather than a harsh scraping. This ensures a secure fixation while protecting the ornament's surface from scratches or pressure damage, achieving truly "seamless" installation and "mark-free" disassembly, thus preserving the ornament's collectible and aesthetic value.

[0026] 3. In this patent, the clamping mechanism consists of multiple clamping plates that can rotate independently around an axis. The unique bending structure design of the clamping mechanism's arm allows the movement trajectory of the claws to better adapt to different contours. When facing small or regularly shaped ornaments, the clamping plates retract to a greater extent, and the claws apply force evenly from multiple directions. When the ornament is large or irregularly shaped, each clamping plate can automatically adjust its rotation angle according to different contact points, allowing the claws to conform to the concave and convex surfaces of the ornament at different covering angles, achieving adaptive wrapping. This multi-point, flexible clamping method, compared to traditional rigid buckles, not only has a more reasonable contact area and more uniform pressure distribution, preventing excessive local stress from damaging the ornament, but also effectively copes with a wider range of sizes and shapes, greatly improving the product's versatility and user freedom. At the same time, in the clamping state, the elastic mechanism continuously applies a constant closing tendency force to the clamping plates through the push rod, ensuring that the clamping force will not loosen over time or due to slight vibrations, ensuring the stability of the ornament during carrying or daily use, and effectively preventing accidental fall.

[0027] 4. In this patent, the base of the device is designed with a flat bottom and a harmonious appearance. When the clamping mechanism retracts to hold the decorative item, the entire device can stand upright as a stable whole on any flat surface such as a desktop or bookshelf. At this point, it is no longer an accessory hidden on the pen, but a sophisticated base or stand specifically designed to display the decorative item. Users do not need to always attach the decoration to the pen; they can appreciate it as an independent desktop ornament at any time, achieving flexible switching of decorative scenarios. This design fully considers the diverse display needs of users, elevating the product beyond a simple pen accessory and increasing its usage scenarios and emotional value.

[0028] 5. The linear pressing motion of the push rod is converted into control force on the inside of the clamping plate through the limiting mechanism, while the reset of the elastic mechanism is converted into control force on the outside of the clamping plate through the push rod. This coordinated action of the inside and outside precisely regulates the opening and closing state of the clamping plate. The user's operation is very intuitive: press down to open, release to close. This intuitive interactive design, coupled with the visibility and rhythm of the mechanical movement itself, brings users a pleasant operating experience and reliable psychological expectations. All moving parts are housed in a compact space formed by the base, the stop mechanism, and the push rod, resulting in a strong overall appearance, a stable structure, and ease of assembly and maintenance. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this patent, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this patent and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a perspective view of the clamping device in the retracted state in this patent.

[0031] Figure 2 This is a perspective view of the clamping device in the open state in this patent.

[0032] Figure 3 This is an exploded plan view of the clamping device in this patent.

[0033] Figure 4 This is an exploded perspective view of the clamping device in this patent.

[0034] Figure 5 This is a perspective view of the limiting mechanism in this patent;

[0035] Figure 6 This is a front view of the limiting mechanism in this patent;

[0036] Figure 7This is a top view of the stop mechanism in this patent.

[0037] Figure 8 This is the front view of the stop mechanism in this patent;

[0038] Figure 9 This is a cross-sectional view of the stop mechanism in this patent.

[0039] Figure 10 This is a front view of the clip in this patent;

[0040] Figure 11 This is a side view of the clip in this patent;

[0041] Figure 12 This is a schematic diagram of the stop mechanism and clamping plate before assembly in this patent.

[0042] Figure 13 This is a schematic diagram of the stop mechanism and clamp plate assembled in this patent.

[0043] Figure 14 This is a front view of the push rod in this patent;

[0044] Figure 15 This is a cross-sectional view of the push rod in this patent;

[0045] Figure 16 This is a front view of the base in this patent;

[0046] Figure 17 This is a cross-sectional view of the base in this patent;

[0047] Figure 18 This is a top view of the clamping device in the retracted state in this patent.

[0048] Figure 19 This is a front view of the clamping device in its retracted state in this patent.

[0049] Figure 20 This is a cross-sectional view of the clamping device in the retracted state in this patent.

[0050] Figure 21 This is a top view of the clamping device in the open state in this patent.

[0051] Figure 22 This is a front view of the clamping device in the open state in this patent.

[0052] Figure 23 This is a cross-sectional view of the clamping device in the open state in this patent.

[0053] Figure 24 This is a front view of the clamping device in this patent clamping the large decorative object;

[0054] Figure 25This is a perspective view of the clamping device in this patent clamping large decorative objects;

[0055] Figure 26 This is a front view of the clamping device in this patent holding a small decorative item;

[0056] Figure 27 This is a perspective view of the clamping device in this patent clamping large decorative objects;

[0057] Figure 28 This is a perspective view of the pen tool in this patent.

[0058] The reference numerals in the attached figures are explained as follows:

[0059] 100: Limiting mechanism;

[0060] 110: First through hole;

[0061] 120: Limiting support frame;

[0062] 121: Stop and guard;

[0063] 130: Receiving cavity;

[0064] 140: Support foot;

[0065] 141: First anti-protrusion strip;

[0066] 200: Stopping mechanism;

[0067] 210: Second through hole;

[0068] 220: Shaft connection part;

[0069] 230: Base connection part;

[0070] 300: Clamping mechanism;

[0071] 310: Clamping plate;

[0072] 311: Claw;

[0073] 312: Arm;

[0074] 313: Push rod stop;

[0075] 314: Shaft portion;

[0076] 400: Push rod;

[0077] 410: Backswing;

[0078] 411: Limiting and blocking surface;

[0079] 412: Limiting and fixing groove;

[0080] 413: Clamping the edge;

[0081] 420: Downswing;

[0082] 421: Inner wall of the lower rod;

[0083] 422: Flexible top guard;

[0084] 423: Base fixing slot;

[0085] 430: Third through hole;

[0086] 440: Reset channel;

[0087] 500: Base;

[0088] 510: The seat of honor;

[0089] 511: Stop connection part;

[0090] 512: Flexible bottom guard;

[0091] 520: Take your seat;

[0092] 521: Second anti-protrusion strip;

[0093] 522: Pen connecting part;

[0094] 600: Flexible mechanism;

[0095] 700: Decorations;

[0096] 800: Penware. Detailed Implementation

[0097] The detailed features and advantages of this patent are described below in the specific embodiments. The content is sufficient to enable any person skilled in the art to understand the technical content of this patent and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this patent.

[0098] It should be noted that,

[0099] "Mengli" specifically refers to miniature physical character derivatives derived from anime, games, and cultural and creative IPs. The core structure is a highly condensed "character image," using a cute, chibi-style design to encapsulate the character's characteristics in a small, three-dimensional form. Materials are mostly plastic, resin, or soft rubber, emphasizing tactile feel and detail. Their core function is as an emotional symbol, for collection, display, play, or use in conjunction with other objects such as pens.

[0100] Trendy toys, short for "fashionable toys," refer to toys that blend contemporary art, popular culture, design, and collectability. Their core structure lies in "original artistic images created by designers" and "limited-edition or serialized commercial release models." Unlike traditional toys, trendy toys emphasize unique design aesthetics, sculptural qualities, painting techniques, and collaborations with artists and brands.

[0101] Blind boxes: refer to a sales format in which a series of themed products are randomly packaged in opaque boxes. Their structure consists of a "fixed product series" and a "random acquisition method." A series typically includes multiple basic styles and rare, hidden styles, and consumers cannot predict the specific style before purchasing.

[0102] Dolls: Generally refers to physical toys or collectibles made to resemble human, animal, or fantasy creatures. Their basic structure is a recognizable "simulated form," and common materials include fabric, plastic, ceramic, and felt. The core of dolls lies in their "anthropomorphic" or "biological" form, used to express emotions, provide companionship, narrate narratives, or display art, encompassing a broad spectrum from children's toys to high-end art sculptures.

[0103] To make the objectives, technical solutions, and advantages of this patent clearer, the embodiments of this patent will be described in further detail below with reference to the accompanying drawings.

[0104] Please refer to the decorative clamping device and the pen 800 in a pen 800. Figures 1-4 The clamping device includes a clamping mechanism 300, a stop mechanism 200, a push rod 400, a limiting mechanism 100, a base 500, and an elastic mechanism 600. The precise coordination of these mechanisms allows the clamping device to have an open state and a closed state. By applying a downward pressure, the clamping device changes from the closed state to the open state to clamp the target decoration 700. After the downward pressure is removed by releasing the clamping device, the clamping device automatically clamps the target decoration 700 by relying on the deformation restoring force of the elastic mechanism 600.

[0105] Among them, decoration 700 is a three-dimensional decoration, which can be one or more of the following: cute particles, trendy toys, blind boxes, or dolls.

[0106] Please refer to Figures 5-6 The limiting mechanism 100 is the "key" that controls the opening of the clamping piece 310. The main body of the limiting mechanism 100 is a limiting support frame 120. The limiting support frame 120 is a thin-shell support structure that is not completely closed. The top center of the limiting support frame 120 is provided with a first through hole 110. The diameter of the through hole must ensure that the ornament 700 can pass through smoothly and sit in the center of the clamping mechanism 300.

[0107] Three support feet 140 extend downward from the bottom of the limiting support frame 120, and each support foot 140 has a first locking protrusion 141 at its end. These first locking protrusions 141 are used to engage with the limiting fixing groove 412 at the bottom of the upper rod 410 in the push rod 400, thereby making the limiting mechanism 100 and the push rod 400 firmly connected and achieving synchronous movement. After engagement, the limiting mechanism 100 and the push rod 400 together form a non-closed receiving cavity 130, which is used to accommodate the upper part of the stop mechanism 200 and the root of the clamping piece 310 connected to the stop mechanism 200.

[0108] On the inner side of the limiting support frame 120, at positions corresponding to the inner side of each clamping piece 310 arm 312, there is an inclined and arc-shaped stop edge 121. When the limiting mechanism 100 moves down with the push rod 400, these stop edges 121 act on the inner side of the clamping piece 310 arm 312, forcing the arm 312 to rotate outward.

[0109] Please refer to Figures 7-9 The stop mechanism 200 serves as the mounting base and rotation pivot of the clamping mechanism 300. The main body of the stop mechanism 200 is typically an annular or cylindrical structure with a second through hole 210 running vertically through the center. At the upper part of the stop mechanism 200, corresponding to each clamping piece 310, a shaft connection portion 220 is provided.

[0110] The shaft connection portion 220 is specifically a snap-fit ​​structure, and the size and shape of the shaft connection portion 220 precisely match the shaft portion 314 of the clamping piece 310. When the shaft portion 314 of the clamping piece 310 is pressed into the shaft connection portion 220, the clamping piece 310 is restricted to that position, but it can rotate at a certain angle within the space provided by the shaft connection portion 220 with the shaft portion 314 as the center, thereby realizing opening and closing.

[0111] The lower inner wall of the stop mechanism 200 is provided with a base connecting part 230, which uses protruding teeth or threads for fixed connection with the base 500. The function of the stop mechanism 200 is to fix the rotation center of the clamping piece 310 and convert the force from the push rod 400 and the limiting mechanism 100 on the stop mechanism 200 into the rotational torque of the clamping piece 310 around the fixed axis.

[0112] Please refer to Figures 10-13 The clamping mechanism 300 is the execution terminal that directly contacts the decoration 700 and performs the gripping function. The clamping mechanism 300 is not a single rigid component, but is composed of multiple independent clamping plates 310 arranged in a surrounding manner.

[0113] The number of clamping pieces 310 is 2 to 6, preferably 3.

[0114] Each clamping piece 310 is a one-piece molded structure. The structure of the clamping piece 310 is carefully designed and can be divided into three functional areas from top to bottom: the claw part 311 at the top, the arm part 312 in the middle, and the shaft part 314 at the end.

[0115] The claw 311 is typically designed as an inwardly curved arc or a contact surface with a flexible pad. The function of the claw 311 is to directly cover and contact the surface of the ornament 700. The design goal is to maximize the contact area to distribute pressure while applying sufficient clamping force, so as to avoid point stress damage to the ornament 700.

[0116] The arm 312 connects the claw 311 and the shaft 314, and typically features a bent structure at a certain angle. This design ensures that the movement trajectory of the claw 311 is not a simple radial opening and closing, but rather a rotational translation with a certain angle, thus better adapting to decorations 700 with different contours. The outer surface of the arm 312 near the shaft 314 is a push rod stop 313, while the inner side near the claw 311 forms an area where the limiting mechanism 100 can operate.

[0117] The shaft portion 314, located at the very end of the clamping piece 310, is a short, transverse shaft and serves as the physical fulcrum for the rotational movement of the clamping piece 310. Multiple clamping pieces 310 are connected to the shaft connection portion 220 on the stop mechanism 200 via the shaft portion 314, and the opening and closing of the entire clamping mechanism 300 is achieved by rotating around the shaft connection portion 220. The multiple clamping pieces 310 are evenly distributed around the circumference of the stop mechanism 200, allowing them to collectively form a dynamically variable "grip."

[0118] Please refer to Figures 14-15 The push rod 400 is the driving and force transmission component of the clamping device. The push rod 400 is typically designed as a stepped cylindrical shape, comprising a thicker upper rod 410 and a thinner lower rod 420. The top edge of the upper rod 410 extends outward to form an annular clamping stop 413 corresponding to the push rod stop 313 in the clamping piece 310. When the device is in the retracted state, the clamping stop 413 precisely abuts against the push rod stop 313 area on the outer side of all the arms 312 of the clamping pieces 310.

[0119] The bottom of the upper rod 410 is provided with a limiting abutment surface 411, and an annular limiting fixing groove 412 is opened on the limiting abutment surface 411. The lower rod 420 is a hollow tubular structure, the hollow part is a third through hole 430, and the inner wall of the lower rod 420 is provided with a guide structure base fixing groove 423, which is used to match and fix the second locking protrusion 521 in the base 500.

[0120] The bottom inner side of the lower rod 420 protrudes inward to form a ring-shaped elastic top guard 422.

[0121] The push rod 400 has multiple functions: First, the push rod 400 is one of the direct bearing components for the downward pressure applied by the user; second, the push rod 400, through the clamping stop 413, causes the push rod stop 313 to close from the outside by acting on the clamping stop 413 during the reset process; finally, the cavity inside the push rod 400 and the elastic top stop 422 at the bottom cooperate with the base 500 to form the reset channel 440 for accommodating and positioning the elastic mechanism 600.

[0122] Please refer to Figures 16-17 The base 500 is the base and supporting structure of the entire clamping device, and also the interface for connecting the pen 800. The base 500 is usually divided into an upper base 510 and a lower base 520.

[0123] The upper seat 510 has a stop connection part 511 at its top, which is a protruding locking tooth that matches the shape of the base connection part 230 in the stop mechanism 200, and is used to engage and fix with the base connection part 230 of the stop mechanism 200. The upper seat 510 has an outwardly protruding elastic bottom guard edge 512 at its bottom.

[0124] The outer wall of the lower base 520 is provided with an axially extending second locking protrusion 521. The second locking protrusion 521 is slidably engaged with the base fixing groove 423 of the inner wall 421 of the lower rod of the push rod 400, which allows the push rod 400 to move up and down along the axial direction of the base 500, while preventing it from rotating relative to the base.

[0125] The inner wall of the lower seat 520 is provided with a pen connecting part 522 for installing the entire clamping device onto the pen 800. The pen connecting part 522 can be an internal thread or a snap-fit ​​structure, and this patent is not limited to this.

[0126] The outer wall of the upper seat 510, the elastic bottom stop 512, the inner wall of the lower rod 420 of the push rod 400, and the elastic top stop 422 together form a closed reset channel 440, in which the elastic mechanism 600 is housed.

[0127] The elastic mechanism 600 is the energy source for the clamping device to achieve automatic reset and provide normally closed clamping force. In this embodiment, the elastic mechanism 600 is a helical compression spring, which is placed in the reset channel 440. The upper and lower ends of the elastic mechanism 600 abut against the elastic top stop 422 of the push rod 400 and the elastic bottom stop 512 of the base 500, respectively.

[0128] When the clamping device is in the retracted state, the elastic mechanism 600 is in its natural state, and the spring is in an extended or semi-compressed state. The elastic force of the elastic mechanism 600 pushes the push rod 400 upward, so that the push rod 400 is at the upper limit of its stroke. When the push rod 400 or the limiting mechanism 100 is pressed down, the spring is further compressed, storing elastic potential energy, and the clamping mechanism 300 changes to the open state. When the external force is removed, the spring releases its potential energy, pushes the push rod 400 to reset, and the clamping mechanism 300 returns to the retracted state.

[0129] Please refer to Figures 18-23 The assembly process of the clamping mechanism 300 is as follows: First, the clamping mechanism 300 and the stop mechanism 200 are pre-assembled. The operator aligns the shaft portion 314 of each clamping piece 310 radially and presses it into the corresponding shaft connection portion 220 on the stop mechanism 200. After this step is completed, all clamping pieces 310 are installed on the stop mechanism 200. They can rotate freely around their respective shaft portions 314, but the axial and radial positions of the clamping pieces 310 are basically limited by the stop mechanism 200.

[0130] Next, assemble the base 500, the elastic mechanism 600, and the push rod 400. Place the elastic mechanism 600 into the reset channel 440 of the base 500, so that the lower end of the elastic mechanism 600 rests on the elastic bottom stop 512 of the base 500. Then, insert the lower rod 420 of the push rod 400 into the upper seat 510 of the base 500. During this process, ensure that the base fixing groove 423 of the inner wall 421 of the lower rod of the push rod 400 is aligned with the second locking protrusion 521 of the outer wall of the lower seat 520 of the base 500, so that the push rod 400 can slide smoothly up and down along the second locking protrusion 521 without relative rotation. After the push rod 400 is inserted, the elastic top stop 422 at the bottom of the lower rod 420 of the push rod 400 will press against the upper end of the elastic mechanism 600. At this point, the elastic mechanism 600 is stably confined in the reset channel 440 formed by the push rod 400 and the base 500.

[0131] Then, the stop mechanism 200, pre-installed with the clamping plate 310, is partially combined with the base 500. Holding the stop mechanism 200, align the second through hole 210 at the bottom of the stop mechanism 200 with the top of the base 500, and press the stop mechanism 200 downwards so that it fits onto the outside of the upper seat 510 of the base 500. Continue pressing down until the base connecting part 230 on the inner wall of the stop mechanism 200 and the stop connecting part 511 on the top of the upper seat 510 of the base 500 engage with each other, producing a "click" sound to complete the locking. At this point, the stop mechanism 200 is firmly installed on the base 500, and due to the design of the stop connecting part 511, it can rotate slightly relative to the base 500 but is firmly locked in the axial direction.

[0132] Finally, install the limiting mechanism 100. With the clamping mechanism 300 in a naturally retracted or manually opened state, insert the limiting mechanism 100 from top to bottom. The first locking protrusion 141 on the supporting foot 140 of the limiting mechanism 100 should be aligned with the limiting fixing groove 412 at the bottom of the upper rod 410 of the push rod 400. At the same time, press the limiting mechanism 100 down until the first locking protrusion 141 is fully engaged in the limiting fixing groove 412 to achieve a fixed connection between the two.

[0133] At this point, the limiting support frame 120 of the limiting mechanism 100 is located above all the clamping pieces 310, and the stop edge 121 in the limiting mechanism 100 is located above the inner side of the arm 312 of the clamping piece 310. The internal assembly of the entire clamping device is now complete, and the components form an organically linked whole. From the outside, the clamping pieces 310 extend from the side wall holes of the limiting mechanism 100, and the end of the base 500 exposes the pen connecting part 522 for engagement with the pen 800.

[0134] The assembled clamping mechanism 300 is used after being connected to the pen 800. The pen connecting part 522 of the clamping device base 500 is designed as a universal interface. The pen 800 typically includes a pen refill, a pen barrel for storing the pen refill, a grip, and a click assembly. When assembling the clamping device with the writing pen 800, simply screw or snap the pen connecting part 522 on the inner wall of the lower base 520 of the clamping device base 500 with the corresponding structure at the front end of the pen barrel to securely install the entire clamping device onto the pen 800, thus forming a complete pen 800 with the function of clamping the decorative ornament 700.

[0135] Please refer to Figure 28 When the clamping device is combined with the pen 800, the user can write with the pen and change the decoration 700 on top at any time by operating the clamping device.

[0136] The clamping device is converted into a control force on the inside of the clamping piece 310 through the limiting mechanism 100, while the reset of the elastic mechanism 600 is converted into a control force on the outside of the clamping piece 310 through the push rod 400. This synergistic action of the inside and outside jointly regulates the opening and closing state of the clamping piece 310, and adaptively clamps the decoration 700 during the opening and closing process.

[0137] The axial movement distance of the push rod 400 sliding on the base 500 is d1, and the remaining height of the receiving cavity 130 after accommodating the stop mechanism 200 in the retracted state is d2, where d1=d2.

[0138] The specific working process and mechanism are as follows:

[0139] The initial state of the clamping device is the naturally retracted state, that is, the state when it is not subjected to external force and is not clamping an object. In this state, the elastic mechanism 600 in the reset channel 440 is in a pre-compressed state. The upward elastic force of the elastic mechanism 600 acts on the push rod 400 through the elastic top stop 422 of the push rod 400, pushing the push rod 400 to move upward along the axial direction of the base 500 until the top of the upper rod 410 of the push rod 400 contacts the bottom surface of the stop mechanism 200, reaching the end of the upward stroke.

[0140] As the push rod 400 moves upward, it connects with the first locking protrusion 141 through the limiting fixing groove 412, driving the limiting mechanism 100 to move up to the highest point. At this time, the clamping stop 413 at the top of the upper rod 410 of the push rod 400 tightly abuts against the push rod stop 313 on the outside of the arm 312 of all the clamping pieces 310. This abutting force generates a torque that causes the clamping pieces 310 to rotate inward around the shaft 314, i.e., a closing torque.

[0141] Meanwhile, since the limiting mechanism 100 is in a high position, the stop edge 121 of the limiting mechanism 100 is no longer in contact with the inner side of the arm 312 of the clamping piece 310, and therefore does not generate an outward pushing force on the clamping piece 310. Under the action of the closing torque, all the clamping pieces 310 rotate inward synchronously, and the claws 311 at the top of the clamping pieces 310 converge towards the center, forming a closed, small-diameter gripping ready posture. At this time, if viewed from the top, the clamping pieces 310 may appear almost closed, and most of the first through hole 110 is blocked.

[0142] When the decoration 700 needs to be installed, the user applies a downward pressure to the top of the push rod 400 or the top of the limiting mechanism 100. Since the push rod 400 and the limiting mechanism 100 are already engaged, the push rod 400 and the limiting mechanism 100 will move synchronously after the force is applied.

[0143] This external force overcomes the elastic force of the elastic mechanism 600, pushing the push rod 400 to move downwards in a straight line along the guide direction of the second locking protrusion 521 of the base 500. The downward movement of the push rod 400 causes the limiting mechanism 100, which is engaged with the push rod 400 by a buckle, to move downwards synchronously. As the limiting mechanism 100 moves downwards, the stop edge 121 on the side of the limiting mechanism 100 gradually approaches and finally contacts the inner surface of the arm 312 of the clamping piece 310.

[0144] Due to the inclined or curved surface design of the stop edge 121, the limiting mechanism 100, which continues to move downward, will apply a radially outward pushing force to the inner side of the clamping piece 310 through the stop edge 121. This pushing force generates a torque that is opposite to the closing torque and causes the clamping piece 310 to rotate outward about the axis 314, i.e., the opening torque.

[0145] When this opening torque overcomes the persistent, minute closing torque transmitted by the elastic mechanism 600 through the push rod 400 and the frictional resistance, the clamping plates 310 begin to move. Each clamping plate 310 rotates outward around the shaft portion 314 as a fulcrum within the shaft connection portion 220 of the stop mechanism 200, and the claw portion 311 at the top of the clamping plate 310 moves away from the center, while the arm portion 312 swings outward.

[0146] At this time, the contact state between the clamping stop 413 of the push rod 400 and the outer side of the arm 312 of the clamping piece 310 gradually changes from line contact when closing to surface contact during the opening process.

[0147] The clamping plate 310 fully opens to form a trumpet-shaped or flower-shaped open space, and the central area of ​​the clamping mechanism 300 is fully exposed to facilitate the insertion of the ornament 700. During this process, the elastic mechanism 600 is further compressed, storing more elastic potential energy.

[0148] The user inserts the ornament 700 through the first through hole 110 of the limiting mechanism 100, so that the bottom of the ornament 700 is located on the top plane of the upper rod 410 of the push rod 400 and the support surface next to the first through hole 110 in the limiting mechanism 100. At this time, the ornament 700 is located at the center of the multiple clamping pieces 310 that have been opened.

[0149] The user then removes the downward pressure applied to the push rod 400 or the limiting mechanism 100. Once the external force disappears, the compressed elastic mechanism 600 immediately seeks to return to its original state, releasing the elastic potential energy stored when the elastic mechanism 600 was compressed.

[0150] This restoring force pushes the elastic top stop 422 of the push rod 400 upward, causing the push rod 400 to begin its upward reset movement. The push rod 400 moves upward and drives the limiting mechanism 100 to rise synchronously. As the limiting mechanism 100 rises, the stop stop 121 of the limiting mechanism 100 gradually disengages from the inner side of the arm 312 of the clamping piece 310, thus removing the outward pushing force that caused the clamping piece 310 to open.

[0151] At the same time, the upward-moving push rod 400, with its top clamping stop 413 "catching up" again with the outer side of the clamping piece 310 arm 312, which has shifted outward due to opening. The clamping stop 413 contacts and begins to compress the push rod stop 313 area on the outer side of the arm 312. This contact force generates a radially inward pressure, i.e., reapplying the closing torque.

[0152] At the moment when the opening thrust is lost and the closing torque is regained, all the clamping plates 310 begin to rotate inward synchronously under the action of the closing torque, so that the claws 311 at the top of the clamping plates 310 gently move from the periphery towards the decorative object 700 in the center.

[0153] Please refer to Figures 24-27 When the claws 311 at the tip of the clamping piece 310 gently move from the periphery toward the center of the ornament 700, the clamping mechanism 300 achieves an adaptive clamping process. Since the ornaments 700 vary in shape and size, the time and position at which the claws 311 of each clamping piece 310 contacts the surface of the ornament 700 may differ. When the claws 311 of a certain clamping piece 310 contacts the surface of the ornament 700 first, the inward rotation of the clamping piece 310 is hindered.

[0154] However, the upward trend of the push rod 400, driven by the elastic mechanism 600, continues unabated, thus the pushing force exerted by the clamping stop 413 of the push rod 400 on the outer side of the arm 312 of the clamping piece 310 persists. This pushing force is converted into a clamping force of the clamping piece 310 on the surface of the ornament 700, and due to the leverage effect of the arm 312, a gripping force is generated at the claw 311.

[0155] For the clamping pieces 310 that have not yet made contact with the ornament 700 or still have room to move after making contact, they will continue to rotate inward until the claws 311 of these clamping pieces 310 also make contact with the surface of the ornament 700 and generate a corresponding clamping force. Finally, the claws 311 of all the clamping pieces 310 will fit and cover the outer surface of the ornament 700 at different angles and to different degrees.

[0156] The elastic mechanism 600, through the cooperative structure formed by the push rod 400 and the clamping piece 310, continuously provides a stable, center-directed preload, enabling the clamping piece 310 to firmly "hold" the ornament 700. This clamping force is relatively evenly distributed, avoiding localized stress concentration. The elastic force of the elastic mechanism 600 is equal to the sum of the components of the total clamping force applied to the ornament 700 by all the clamping pieces 310 through leverage in the direction of the push rod 400. The clamping device enters a stable retracted state, and the ornament 700 is securely and undamagedly fixed.

[0157] This patent specification uses directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom" to describe various example structural parts and components of this patent. However, the use of these terms is merely for illustrative purposes and is based on the orientation of the examples shown in the accompanying drawings. Since the embodiments disclosed in this patent can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or the same as the direction of gravity.

[0158] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this patent will not describe the various possible combinations separately.

[0159] Furthermore, various implementations of this patent can be combined in any way, and as long as they do not violate the spirit of this patent, they should also be regarded as the content disclosed in this patent.

Claims

1. A decoration holding device for use in a pen, characterized by comprising: The utility model relates to a pen with a decoration device, comprising: A clamping mechanism for clamping the decoration, the clamping mechanism has the open state and the closing state; Driving assembly for driving the clamping mechanism open or close; Base for connecting the clamping mechanism with the pen.

2. The decoration holding device according to claim 1, characterized by The driving assembly comprises: Stop mechanism, the clamping mechanism is sleeved; Push rod, prompting the clamping mechanism open and close; Limiting mechanism, the clamping mechanism opens; Elastic mechanism, the clamping mechanism closes; The limiting mechanism is connected with the push rod and forms the non-closed accommodating cavity, the stop mechanism and part of the clamping mechanism connected with the stop mechanism are arranged in the accommodating cavity, the base is sleeved with the base and forms the reset channel, and the elastic mechanism is arranged in the reset channel; When the downward pressure is applied to the clamping device, the push rod moves downward along the axial direction of the base, the elastic mechanism changes from the elongation state to the compression state, the limiting mechanism moves downward synchronously until abutting against the stop mechanism, and the clamping mechanism changes from the closing state to the open state; When the pressure applied to the clamping device is stopped, the elastic mechanism recovers from the compression state to the elongation state, the push rod moves upward along the axial direction of the base under the action of the elastic mechanism, the limiting mechanism resets synchronously, and the clamping mechanism changes from the open state to the closing state; The stop mechanism comprises a shaft connecting portion, and the shaft connecting portion is a clamping hole structure; The clamping mechanism is formed by surrounding the clamping pieces; The clamping pieces are integrally formed; The clamping pieces comprise claw portions, arm portions and shaft portions, the arm portions have bending structures, the claw portions are connected with the arm portions so that the claw portions close and contact the decoration, and the shaft portions are arranged at the ends of the arm portions; The shaft portions are horizontal shafts, and the shaft portions are matched with the shaft connecting portions so that the clamping pieces rotate around the shaft connecting portions through the shaft portions; The number of the clamping pieces is equal to the number of the shaft connecting portions, and the number of the clamping pieces is 2-6.

3. The trim clamp of claim 2, wherein The stop mechanism further comprises a second through hole and a base connecting portion, and the base connecting portion is arranged on the inner wall of the second through hole; The base is provided with an upper base and a lower base, the upper base and the lower base are integrally formed, and the top of the upper base is provided with a stop connecting portion; When the stop mechanism is connected with the base, the stop connecting portion enters the second through hole and is connected with the base connecting portion, and the connection mode of the stop mechanism and the base is buckle connection or screw connection.

4. The trim holding device according to claim 3, wherein The lower base comprises a second clamping protruding strip and a pen connecting portion, the second clamping protruding strip is arranged on the outer wall of the lower base and is connected with the base fixing groove of the push rod, and the pen connecting portion is arranged on the inner wall of the lower base and is connected with the pen. The push rod further comprises an upper rod and a lower rod, and the upper rod and the lower rod are integrally formed; 5. The trim clamp of claim 4, wherein the clamp body is formed of a single piece of material. The bottom of the upper rod comprises a limiting abutting surface, and the limiting abutting surface is provided with a limiting fixing groove; The length of the decoration is less than or equal to the diameter of the upper rod; The top of the upper rod is provided with a clamping stop edge, and the clamping stop edge abuts against the outer side of the arm portion. ​ When the clamping mechanism is in the closed state, the clamping stop edge is in line contact with the outer side of the arm part; When the clamping mechanism is in the open state, the clamping stop edge is in surface contact with the outer side of the arm part.

6. The trim clamp of claim 5, wherein the clamp body is formed of a single piece of material. The lower rod is provided with a third through hole and an elastic top stop edge, and the elastic top stop edge is arranged at the bottom of the third through hole; The base passes through the third through hole into the second through hole and is connected with the stop mechanism; The upper seat is further provided with an elastic bottom stop edge, and the elastic bottom stop edge is arranged at the bottom of the upper seat; The elastic top stop edge, the elastic bottom stop edge, the outer wall of the upper seat and the inner wall of the lower rod form the reset channel accommodating the elastic mechanism.

7. The trim holding device as defined in claim 6, wherein The limiting mechanism comprises a first through hole, a limiting support frame and a support foot, the first through hole is arranged at the top of the limiting support frame, and the support foot is arranged at the bottom of the limiting support frame; The support foot comprises a first clamping protrusion, and the limiting fixed groove is connected with the first clamping protrusion, so that the limiting mechanism is connected with the push rod; The diameter of the first through hole is smaller than the diameter of the arm part when the clamping mechanism is in the open state; The length of the bottom of the decoration is smaller than the diameter of the first through hole.

8. The trim holding device as set forth in claim 7, wherein The push rod and / or the limiting mechanism are used to bear the pressure; The push rod and / or the limiting mechanism are provided with a pressing key, when the pressing key is pressed, the clamping mechanism is changed from the closed state to the open state; When the pressing key is released, the clamping mechanism is changed from the open state to the closed state; The axial movement distance of the push rod sliding on the base is d1, and the remaining height of the accommodating cavity after accommodating the stop mechanism in the closed state is d2, d1=d2.

9. The device according to claim 1, wherein The decoration is a three-dimensional decoration, and the decoration is one or more of a moji, a fad toy, a blind box or a doll.

10. A writing instrument, characterized by The pen comprises the clamping device according to any one of claims 1-9. The pen comprises the clamping device according to any one of claims 1-9.

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