A type of pressure-type vacuum pen

Abstract

This utility model belongs to the field of vacuum suction pen technology and discloses a pressure-type vacuum suction pen, including an adsorption component, an air guide component, and an air bladder. The adsorption component and the air bladder are respectively connected to both ends of the air guide component. The air guide component is provided with a finger rest, which is used for the user to insert their fingers to support the weight of the entire suction pen and the object being suctioned. The air bladder is used for the user to press down with their thumb to compress the internal space of the air bladder and create a vacuum. This utility model, by setting a finger rest on the air guide component, allows the user to insert their fingers to support the weight of the suction pen and the object being suctioned. This avoids hand fatigue caused by having to hold the air guide component or air bladder for the entire time, effectively improving the efficiency of long-term continuous operation. It also allows the user to precisely compress the internal space of the air bladder by pressing down with their thumb to create a vacuum, separating the weight-bearing and negative pressure generation operations. This eliminates the need to exert force in both directions, significantly improving the stability of the suction process and reducing the risk of components falling off due to unstable operation.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum pen suction technology, and relates to a pressure-type vacuum pen suction. Background Technology

[0002] In fields such as electronics manufacturing and precision instrument assembly, the handling and positioning of small, fragile, and precision components such as chips and small resistors rely on the non-contact adsorption function of vacuum suction pens to avoid scratches and electrostatic damage caused by direct contact. Current vacuum suction pens basically consist of a nozzle, an air guide tube, and an air bladder. They achieve component adsorption by creating a pressure difference through a compressed negative pressure structure that expels air. However, existing vacuum suction pens require users to grip the air tube or airbag shell with their fingers throughout the entire operation, simultaneously bearing the weight of the suction pen itself and the component being suctioned. During prolonged continuous use, the hand muscles must remain constantly tense to maintain grip and support the weight, easily leading to finger joint pain, hand strain, and decreased operational efficiency. Furthermore, hand fatigue directly affects grip stability, potentially causing the suction pen to wobble or components to fall off, compromising the reliability of precise operation. Simultaneously, when the user presses the airbag to create negative pressure, they must maintain the suction pen's weight-bearing capacity through the same hand gripping motion, requiring the hand to simultaneously perform both applying pressure and maintaining stable weight-bearing. Uneven pressure can cause fluctuations in negative pressure, affecting suction force; insufficient force can cause the suction pen to drift, making precise alignment with the component difficult. This lack of operational coordination not only increases the difficulty of operation but also further exacerbates hand fatigue, failing to meet the demands for efficient and precise suction.

[0003] Therefore, there is an urgent need in this field for a pressure-type vacuum suction pen to solve the above-mentioned technical problems. Utility Model Content

[0004] In view of this, the purpose of this utility model is to solve the problems of insufficient grip comfort, operation stability and efficiency of the existing vacuum pen.

[0005] This utility model provides a pressure-type vacuum suction pen, which includes an adsorption component, an air guide component, and an air bag, wherein the adsorption component and the air bag are respectively connected to both ends of the air guide component; The air guide is equipped with a finger rest, which is used for the user to insert their fingers to support the weight of the entire suction pen and the object being suctioned. The air bladder is used for the user to press down with their thumb to compress the internal space of the air bladder and create a vacuum.

[0006] As a further improvement of this utility model, it also includes a connecting block, which is sleeved on the air guide and connected to the finger support.

[0007] As a further improvement of this utility model, the finger support has an opening for the user to insert their fingers.

[0008] As a further improvement of this utility model, the opening direction of the finger support has an angle with the air guide.

[0009] As a further improvement of this utility model, the angle between the opening direction of the finger support and the air guide is a right angle.

[0010] As a further improvement of this utility model, the airbag is spherical, ellipsoidal or cylindrical.

[0011] As a further improvement of this utility model, the air guide includes a bent structure, one end of which is connected to the cylindrical airbag and the other end is connected to the adsorption element.

[0012] As a further improvement of this utility model, the bending structure is an L-shaped adapter pipe or an arc-shaped adapter pipe.

[0013] As a further improvement of this utility model, the upper end of the connecting block and / or the finger support is provided with a support platform, and the airbag is placed on the support platform.

[0014] As a further improvement of this utility model, the connecting block and the finger support are either separate structures or integrally formed structures.

[0015] The technical advantages of this invention are as follows: Compared with the prior art, the pressure-type vacuum suction pen provided by this invention, by setting a finger support, can effectively support the weight of the suction pen and the object being suctioned, avoiding hand fatigue caused by prolonged gripping, and improving the stability and comfort of operation; the generation and release of vacuum are controlled by pressing the air bladder with the thumb, making operation simple and intuitive, and the suction force can be precisely adjusted by controlling the pressing pressure, making it suitable for handling small precision objects of different weights and materials, without the need for dual force application, significantly improving the stability of the suction process, reducing the risk of components falling off due to unstable operation, and is especially suitable for scenarios with high requirements for operational precision, such as electronic assembly and precision instrument assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model, not all embodiments. For those skilled in the art, other drawings obtained from these drawings without creative effort are all within the protection scope of this utility model.

[0017] Figure 1 This is a perspective view of a pressure-type vacuum suction pen provided in an embodiment of this utility model; Figure 2This is a front view of a pressure-type vacuum suction pen provided in an embodiment of this utility model; Figure 3 This is another front view of a pressure-type vacuum suction pen provided in an embodiment of this utility model.

[0018] Among them, 10 is the adsorption component, 20 is the air guide component, 21 is the bending structure, 30 is the airbag, 40 is the finger support, 41 is the opening, 50 is the connecting block, and 60 is the support platform. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0020] To make the description of this disclosure more detailed and complete, illustrative descriptions of the embodiments and specific examples of this utility model are provided below; however, this is not the only form of implementing or using the specific embodiments of this utility model. The embodiments cover the features of multiple specific embodiments and the methods, steps, and sequences for constructing and operating these specific embodiments. However, other specific embodiments can also be used to achieve the same or equivalent functions and sequence of steps. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0023] In the description of this utility model, the terms "front", "rear", "top", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Please refer to Figures 1-3 One embodiment of this utility model provides a pressure-type vacuum suction pen to solve the problems of insufficient grip comfort, operation stability and efficiency of vacuum suction pens in the prior art.

[0025] Specifically, please refer to Figure 1 This is a perspective view of a pressure-type vacuum suction pen provided in an embodiment of the present utility model. The pressure-type vacuum suction pen includes an adsorption component 10, an air guide component 20, and an air bag 30. The adsorption component 10, the air guide component 20, and the air bag 30 are connected in sequence to form the main structure of the suction pen. The air guide component 20 has a through air channel inside, so that the adsorption component 10 and the air bag 30 are interconnected through the air channel to form a gas flow channel.

[0026] Specifically, the adsorption element 10 is disposed at one end of the air guide element 20, and its end is provided with a suction nozzle. The suction nozzle is made of a soft and elastic material, which can conform to the surface of objects with different shapes, such as small electronic chips, thin lenses, and precision metal sheets, to ensure sealing during adsorption. In this embodiment, the end of the suction nozzle has an arc-shaped concave structure to adapt to the adsorption needs of most small objects.

[0027] The air guide 20 is a hollow rod-shaped structure, with one end fixedly connected to the suction element 10 and the other end connected to the air bladder 30, serving as a connecting carrier and gas conduction channel between the suction element 10 and the air bladder 30. A finger rest 40 is provided in the middle area of ​​the air guide 20. The finger rest 40 has a ring-shaped or semi-ring-shaped structure, with an inner diameter adapted to the diameter of an adult's finger, allowing the user to insert their fingers. When the suction pen adsorbs an object, the finger rest 40 can support the weight of the entire suction pen and the object, eliminating the need for the user to grip the air guide 20 to maintain the pen's stability, reducing continuous hand muscle exertion and minimizing operational fatigue.

[0028] The airbag 30 is located at the end of the air guide 20 away from the suction element 10. It is made of elastic rubber material and has compressible and self-rebound characteristics. The internal space of the airbag 30 is connected to the suction nozzle of the suction element 10 through the air passage of the air guide 20. When the user presses down on the airbag 30 with his thumb, the internal space of the airbag 30 is compressed, and the air inside is discharged from the suction nozzle through the air passage. After releasing the thumb, the airbag 30 returns to its original shape under its own elasticity, forming a negative pressure inside. This negative pressure is transmitted to the suction nozzle through the air passage, causing the suction nozzle to generate suction force, thereby firmly adsorbing the object to be suctioned.

[0029] In actual operation, the user can insert their index and middle fingers into the finger support 40, and place their thumb naturally on the air bladder 30, so that the entire suction pen is supported by the hand through the finger support 40. When it is necessary to absorb objects, align the suction nozzle of the suction component 10 with the surface of the object to be absorbed, press down on the air bladder 30 with the thumb to expel the air, and then release it. The suction nozzle can then absorb the object under vacuum. After moving to the target position, simply press the air bladder 30 lightly with the thumb to allow a small amount of air to enter the air passage, which will release the vacuum and allow the object to be absorbed to be placed stably in the target position.

[0030] In the above technical solution, on the one hand, by setting the finger support 40, the weight of the suction pen and the object being suctioned can be effectively supported, avoiding hand fatigue caused by prolonged gripping, and improving the stability and comfort of operation; on the other hand, the generation and release of vacuum are controlled by pressing the airbag 30 with the thumb, which is simple and intuitive to operate, and the suction force can be precisely adjusted by controlling the pressing pressure, which is suitable for handling small precision objects of different weights and materials. There is no need to consider dual force, which significantly improves the stability of the suction process and reduces the risk of components falling off due to unstable operation. It is especially suitable for scenarios with high requirements for operation precision, such as electronic assembly and precision instrument assembly.

[0031] As a further improvement of this utility model, it also includes a connecting block 50, which is sleeved on the air guide 20 and located on one side of the finger support 40, and cooperates with the finger support 40 to form a more stable hand support structure.

[0032] Specifically, the connecting block 50 is made of hard plastic or lightweight metal and has a block-like structure. It has a through hole in the center that matches the outer diameter of the air guide 20. It is fitted onto the air guide 20 through this through hole and can be fixed to the air guide 20 via a threaded connection or a snap-fit ​​structure to prevent displacement during use. The connecting block 50 is fixedly connected to the outer wall of the finger support 40, forming an integral load-bearing structure. This can be achieved by welding or integral injection molding.

[0033] In the above-mentioned improved technical solution, on the one hand, the connecting block 50 is connected to the air guide 20 through a ring sleeve, which greatly enhances the connection stability between the finger rest 40 and the air guide 20; on the other hand, the pressure dispersion effect of the connecting block 50 makes the finger rest 40 bear more evenly. Even when adsorbing slightly heavier components or operating for a long time, the air guide 20 can still keep the airflow channel unobstructed, ensuring stable negative pressure generation, and further improving the reliability and durability of the suction pen.

[0034] During operation of this embodiment, the user's fingers have a clear division of labor: the index finger is inserted into the finger holder 40, with the inside of the index finger fitting against the inner wall of the finger holder 40, providing the main support for the pen and the object being sucked; the middle finger is naturally bent and abuts against the air guide 20, forming auxiliary support and further limiting the radial sway of the air guide 20; the thumb rests naturally on the top surface of the airbag 30, compressing the airbag 30 by pressing down.

[0035] When it is necessary to absorb the object, the index and middle fingers stabilize the position of the air guide 20 to ensure that the suction nozzle of the suction component 10 is accurately aligned with the surface of the object. The thumb presses down on the air bag 30, causing the air inside to be expelled from the suction nozzle through the air passage of the air guide 20. After releasing the thumb, the air bag 30 rebounds to form a vacuum, and the suction nozzle absorbs the object. At this time, the index finger bears the main weight through the finger support 40, and the middle finger assists in the balance by abutting against the air guide 20 to prevent the suction pen from tilting. After moving to the target position, simply press the air bag 30 lightly with the thumb again to release some air and then place the object down smoothly.

[0036] The advantages of this structural design are as follows: by inserting the index finger into the finger support 40 and the middle finger against the air guide 20, the two fingers form a cooperative relationship of primary support and auxiliary stability. Combined with the independent operation of the thumb, this achieves a clear division of labor in hand movements and avoids interference between fingers. At the same time, the contact between the air guide 20 and the middle finger can effectively counteract the torque that may be generated during the suction process, reducing unconscious fine-tuning movements of the hand. It is especially suitable for suctioning slender or precision parts with a shifted center of gravity, significantly improving operational stability and accuracy.

[0037] As a further improvement to this utility model, please refer to Figure 2 The finger rest 40 has an opening 41 for the user to insert their fingers. The opening 41 makes finger insertion more convenient and optimizes the fit between the finger and the finger rest 40.

[0038] Specifically, the finger support 40 can be designed with or without a bottom cavity to suit different usage needs. When the finger support 40 is a bottom cavity, it has an annular groove structure with one end closed and the other end having an opening 41: the closed end forms a bottom opposite to the opening 41, and the inner wall of the bottom is an arc-shaped surface that matches the contour of the fingertip of the index finger. When the user inserts the index finger through the opening 41, the fingertip can naturally rest against the bottom, and the bottom can limit the depth of finger insertion, avoiding fatigue caused by excessive bending of the finger due to excessive insertion. When the finger support 40 is a bottomless cavity, it has an annular structure that runs through both ends, allowing finger insertion only through the side opening 41: there is no closed bottom inside the cavity, and the depth of finger insertion can be freely adjusted according to the user's finger length or operating habits. Shorter fingers can be inserted shallowly, using only the middle of the cavity for support; longer fingers can be inserted deeply, allowing more knuckles to participate in the force. This structure is more versatile and can accommodate users with different hand sizes. Because there is no bottom restriction, the fingers have a slightly higher range of motion in the cavity, which makes it easier to fine-tune the hand posture during the transfer of the object being sucked up. It is especially suitable for scenarios that require frequent changes in the operating angle.

[0039] Regardless of whether a bottomed or bottomless cavity structure is used, the width of the opening 41 of the finger support 40 is slightly larger than the diameter of an adult's index finger. The edges of the opening 41 are rounded, and the inner walls of the cavity are designed to fit the fingers in an arc shape: the bottom of the bottomed cavity and the inner wall are smoothly connected to avoid forming sharp corners that are uncomfortable to the hand; the two ends of the bottomless cavity are also rounded to prevent scratching the fingers.

[0040] When used in conjunction with the connecting block 50, both cavity structures can form a coordinated positioning with the connecting block 50: the bottomed cavity restricts the position of the index finger by the bottom, making the contact angle between the middle finger and the air guide 20 more fixed; the bottomless cavity allows different users to find the best fit position between the middle finger and the air guide 20 by flexibly adjusting the depth of finger insertion.

[0041] This improvement simplifies the finger insertion process by setting an opening 41 on the finger holder 40, and enhances the compatibility and stability between the finger and the finger holder 40 through structural design. This allows the pen to achieve hand positioning more quickly in scenarios such as transferring precision parts and assembling micro-components, further optimizing operational efficiency and accuracy.

[0042] As a further improvement of this utility model, the opening 41 of the finger support 40 forms an angle with the air guide 20. This angle design makes the finger insertion posture more ergonomic, improving the naturalness and stability of operation.

[0043] Specifically, when the finger support 40 is a bottomed cavity, the opening 41 is tilted away from the airbag 30, so that the inserted index finger naturally bends towards the suction member 10; when the finger support 40 is a bottomless cavity, the opening 41 is tilted towards the airbag 30, which is suitable for a more comfortable grip posture. Both tilt directions can be achieved by molding to meet the needs of different operating habits.

[0044] From an ergonomic perspective, the angle design matches the natural curvature of the fingers when gripping: when the user inserts the index finger into the finger support 40 through the opening 41, the finger does not need to be deliberately straightened or excessively bent to fit snugly against the inner wall of the finger support 40. At this time, the middle finger naturally rests on the air guide 20, and the thumb rests on the top surface of the airbag 30. The three fingers form a triangular force structure, and their respective force directions do not interfere with each other. The index finger supports the weight through the finger support 40, the middle finger assists in stabilization by abutting against the air guide 20, and the thumb controls the vacuum by pressing down on the airbag 30. The overall movement is smooth and effortless.

[0045] This improvement design optimizes the naturalness of finger insertion by adjusting the angle between the opening 41 of the finger rest 40 and the air guide 20, and adapts to the needs of different operating scenarios through different angles. Combined with the cavity structure of the finger rest 40 and the contact of the air guide 20, the grip stability, operating comfort and applicability of the pen are further improved.

[0046] As a further improvement of this utility model, the angle between the opening 41 of the finger support 40 and the air guide 20 is a right angle. This vertical angle design makes the finger insertion posture more in line with the natural force exertion state of the hand, further optimizing the stability and accuracy of operation.

[0047] From the perspective of operating posture, the right-angle design is highly compatible with the anatomical structure of the hand when naturally holding it: when the user inserts the index finger into the finger support 40 through the radial opening 41, the index finger and the air guide 20 form a perpendicular relationship, and the finger is naturally bent at 90°. At this time, the palm is in a relaxed state of semi-fist, the middle finger can resist the air guide 20 at a more natural angle, and the thumb rests vertically on the top surface of the airbag 30. The three fingers form a three-dimensional stable structure with the index finger providing horizontal support, the middle finger providing lateral assistance, and the thumb exerting vertical force. The directions of force on each finger are perpendicular to each other and do not interfere with each other, which greatly reduces the tension of the hand muscles.

[0048] In practical applications, the advantages of this right-angle design are particularly significant: First, the vertical opening 41 makes the position of the index finger more fixed after insertion, ensuring that the suction nozzle of the suction component 10 always maintains a stable direction, such as vertically downward or horizontally forward, which is especially suitable for scenarios that require vertical suction of thin sheet-like parts; Second, when the thumb presses down on the airbag 30, the direction of force is consistent with the axis of the air guide 20. Through the force transmission of the right-angle structure, the compression of the airbag 30 can be controlled more precisely, thereby accurately adjusting the vacuum degree and avoiding excessive or insufficient suction force due to deviation in the force angle; Third, for operations that require long-term holding, the right-angle opening 41 makes the contact area between the finger and the finger rest 40 larger and the pressure smaller, which can reduce the pressure on the finger joints.

[0049] This improved solution sets the angle between the opening 41 and the air guide 20 to a right angle, and utilizes the force transmission characteristics of the vertical structure and ergonomic adaptability to significantly improve the grip stability, operation accuracy and long-term use comfort of the suction pen. It is especially suitable for precision manufacturing scenarios with high requirements for consistent adsorption angle and vacuum control accuracy.

[0050] As a further improvement of this utility model, the airbag 30 is any one of a sphere, an ellipsoid, and a cylinder. Different shapes of airbags 30 are adapted to different operating force requirements and grip habits, further improving the applicability of the pen.

[0051] Specifically, when the airbag 30 is spherical, it has a symmetrical spherical structure. The advantage of the spherical structure is that the pressure is uniform. When the thumb is pressed down, the deformation of the sphere is consistent in all directions, the internal air expulsion rate is stable, and the change in vacuum is more gradual. This is suitable for adsorbing lightweight and brittle objects, such as glass lenses and ceramic sheets, and can avoid damage to the adsorbed objects due to excessive instantaneous pressure. At the same time, the spherical airbag 30 has excellent resilience. It can quickly return to its original shape after the thumb is released, forming a stable vacuum environment, which is suitable for scenarios that require high-frequency adsorption-release operations.

[0052] When the airbag 30 is ellipsoidal, its major axis extends along the axial direction of the air guide 20, and its minor axis is perpendicular to the axial direction. The ellipsoidal design better conforms to the natural downward trajectory of the thumb: the contact area between the thumb and the airbag 30 is larger than that of a sphere, resulting in lower pressure and significantly reduced thumb fatigue during prolonged operation. In addition, the ellipsoidal airbag 30 has a longer deformation stroke along the axial direction, allowing for multi-level adjustment of the vacuum level by controlling the pressure depth. Shallow pressure generates a smaller suction force, suitable for adsorbing micro-electronic components such as resistors and capacitors; deep pressure generates a larger suction force, suitable for accommodating slightly heavier parts, such as small metal brackets, resulting in greater operational flexibility.

[0053] When the airbag 30 is cylindrical, it has a closed-end cylindrical structure. The advantages of the cylindrical structure are higher compressive strength, less prone to permanent deformation after repeated pressing, and longer service life; at the same time, its axial compression stroke is stable, making it suitable for scenarios requiring high consistency of adsorption force, such as batch transfer of parts with uniform specifications. In addition, the flat end face of the cylindrical airbag 30 facilitates precise application of force with the thumb, making it particularly suitable for operations requiring precise control of the release timing.

[0054] All three shapes of airbags 30 are made of highly elastic silicone material and are sealed to the connection end of the air guide 20 to ensure that the gas does not leak. Regardless of the shape, the airbag 30 can form a coordinated operating structure with the finger support 40 and the connecting block 50: when the thumb presses the airbag 30, the index finger is stably supported by the finger support 40, and the middle finger assists in balance by abutting against the air guide 20. The overall force is balanced, and the operation stability is not affected by the shape of the airbag 30.

[0055] This improved solution offers three types of airbags (spherical, ellipsoidal, and cylindrical) to choose from, allowing the suction pen to be flexibly adapted to the weight, material, and frequency of operation of the object being suctioned. This ensures the stability of the vacuum generation while optimizing the comfort and accuracy of thumb operation, further expanding the application scenarios of the suction pen in precision manufacturing, electronic assembly, and other fields.

[0056] As a further improvement to this utility model, please refer to Figure 3 The air guide 20 includes a bending structure 21, one end of which is connected to the cylindrical airbag 30 and the other end is connected to the adsorption component 10. This bending structure 21, through a specific angle design, allows the cylindrical airbag 30 to be stably installed in a horizontal position, while simultaneously achieving efficient communication with the adsorption component 10, thus balancing operational convenience and spatial adaptability.

[0057] Specifically, the bent structure 21 has a through air channel inside to ensure smooth and unobstructed gas flow. When the cylindrical airbag 30 is pressed, the internal air can be quickly discharged from the suction nozzle of the adsorption component 10 through the air channel. After the cylindrical airbag 30 is released, the negative pressure formed by its rebound can also be completely transmitted to the suction nozzle through the air channel to ensure the stability of vacuum adsorption.

[0058] By setting the bending structure 21, the cylindrical airbag 30 and the adsorption element 10 form a spatial angle. When it is necessary to adsorb objects in a narrow space, such as the internal cavity of the equipment or the gap between parts, the adsorption element 10 can penetrate into the space, while the cylindrical airbag 30 and the hand are located on the outside, avoiding operational interference and improving spatial adaptability. On the other hand, the transition air passage of the bending structure 21 ensures gas flow efficiency. Combined with the sealed connection structure, the vacuum adsorption force is stable and reliable. At the same time, the coordinated design of the finger support 40 and the bending structure 21 reduces hand fatigue and further improves the accuracy and convenience of adsorption operation.

[0059] As a further improvement of this utility model, the bending structure 21 is an L-shaped adapter pipe or an arc-shaped adapter pipe. These two structures not only adapt to different operating spaces but also effectively prevent the cylindrical airbag 30 from bending due to excessive installation height, thus improving structural stability and service life.

[0060] Specifically, when the bending structure 21 is an L-shaped adapter, its right-angle bend design makes the mounting axis of the cylindrical airbag 30 perpendicular to the extension direction of the adsorption component 10 at 90°. When the bending structure 21 is an arc-shaped adapter, its arc transition design makes the mounting axis of the cylindrical airbag 30 form a gentle angle with the adsorption component 10, so that the cylindrical airbag 30 is placed horizontally and the installation height is reduced. This low-height layout significantly shortens the overhang length of the airbag 30, avoiding lateral bending caused by an excessively high center of gravity. When the thumb presses on the airbag 30, the force is transmitted radially, and the airbag 30 only undergoes compression rather than horizontal bending.

[0061] In the above technical solution, the L-shaped and arc-shaped adapter pipes significantly reduce the installation height and overhang of the cylindrical airbag 30 by shortening the connection section length and optimizing the installation angle, thereby eliminating the risk of bending caused by excessive height and extending the service life of the airbag 30.

[0062] As a further improvement of this utility model, a support platform 60 is provided at the upper end of the connecting block 50 and / or the finger support 40, and the airbag 30 is placed on the support platform 60. The support platform 60 at the upper end of the connecting block 50 and / or the finger support 40, with the cylindrical airbag 30 placed on it, enhances the installation stability of the airbag 30 through the supporting effect of the platform, preventing radial displacement or bending during pressing.

[0063] When only the finger support 40 or the connecting block 50 is provided with a support platform 60, the platform is located at one end of the finger support 40 near the cylindrical airbag 30, and is a horizontally extending arc-shaped support surface. The curvature matches the outer circumference of the cylindrical airbag 30, and the length matches the axial dimension of the cylindrical airbag 30. The edge of the support surface is rounded and fits against the bottom of the cylindrical airbag 30 to provide upward support.

[0064] When both the connecting block 50 and the finger support 40 are provided with a support platform 60, the support platform 60 of the connecting block 50 is located on the side closer to the airbag 30, forming a continuous support surface with the support platform 60 of the finger support 40, covering the bottom of the cylindrical airbag 30 as a whole, and the two platforms are at the same height to ensure that the airbag 30 is subjected to uniform force.

[0065] The upper surface of the support platform 60 has fine anti-slip textures at the contact point with the cylindrical airbag 30 to increase the friction with the airbag 30. When the thumb presses the airbag 30, the platform can offset part of the radial force, restricting the airbag 30 from tilting outward and preventing gaps from forming at the connection part 51 with the air guide 20 due to bending.

[0066] During operation, the support platform 60, the finger support 40, and the connecting block 50 form a cooperative force-bearing structure: after the index finger is inserted into the opening 41 of the finger support 40, the middle finger abuts against the air guide 20, and the two together lift the cylindrical airbag 30 upward through the support platform 60, which not only ensures the airway is sealed, but also reduces the stress concentration at the connecting part 51 and extends the service life of the airbag 30.

[0067] In the above technical solution, on the one hand, the support platform 60 increases the contact area with the cylindrical airbag 30, providing stable bottom support for the airbag 30, effectively preventing it from radially shifting or bending due to pressing force, and improving structural reliability; on the other hand, the integrated design of the platform with the finger support 40 and the connecting block 50 allows the hand operation force to be transmitted to the airbag 30 more evenly through the platform, reducing the control difficulty when pressing with the thumb, further optimizing the stability and accuracy of the adsorption operation, and is especially suitable for high-frequency pressing scenarios.

[0068] As a further improvement of this utility model, the connecting block 50 and the finger support 40 are either separate structures or integrally formed structures. These two structural forms are adapted to different production needs and usage scenarios, improving the structural flexibility and practicality of the pen.

[0069] Specifically, when a split structure is adopted, the connecting block 50 and the finger support 40 are independently molded components: the connecting block 50 is made of hard plastic, with an internal annular sleeve structure and an outer wall with a connecting structure for connecting the finger support 40. The connecting structure can be a snap-fit ​​groove or a positioning pin. The finger support 40 is made of the same material, and its end connected to the connecting block 50 has a matching connecting structure. Correspondingly, it can be an elastic snap that matches the snap-fit ​​groove or a positioning hole that matches the positioning pin. Positioning is achieved by the positioning pin engaging with the positioning hole, or by the elastic snap and the snap-fit ​​groove being interference-fitted to achieve detachable fixation, so as to ensure that the connecting block 50 and the finger support 40 do not wobble relative to each other during use.

[0070] The advantage of this structure is that the finger support 40 can be replaced with different finger cavity specifications according to the user's finger size. When the finger support 40 is worn due to long-term insertion and removal, only the buckle needs to be removed to replace a single part, without replacing the entire connecting block 50 and air guide component 20 assembly, which reduces maintenance costs. It is especially suitable for mass production scenarios where multiple people share the same equipment and there are high requirements for the universality of components.

[0071] When a one-piece molding structure is adopted, the connecting block 50 and the finger support 40 are processed into one piece by injection molding. The advantages of this structure are: it eliminates the assembly gap of the split structure, improves the overall rigidity, and can directly and evenly transmit the load-bearing pressure borne by the finger support 40 to the air guide 20, avoiding pen shaking caused by loose connection; at the same time, the one-piece molding reduces the snap-fit ​​assembly process, which can reduce production time and is suitable for mass production, especially suitable for the adsorption of precision components with high requirements for operational stability.

[0072] In the above technical solution, on the one hand, the split structure realizes flexible replacement of parts and low-cost maintenance through the detachable design, and the one-piece molded structure improves the operational stability through overall rigidity enhancement; on the other hand, both structures ensure the precise matching of the connecting block 50 and the finger support 40. Together with the support function of the finger support 40 and the negative pressure generation function of the airbag 3, they optimize the grip comfort and adsorption reliability of the suction pen and broaden the adaptability of the suction pen in different production scenarios.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pressure-type vacuum suction pen, characterized in that, It includes an adsorption element, an air guiding element, and an air bag, wherein the adsorption element and the air bag are respectively connected to both ends of the air guiding element; The air guide is equipped with a finger rest, which is used for the user to insert their fingers to support the weight of the entire suction pen and the object being suctioned. The air bladder is used for the user to press down with their thumb to compress the internal space of the air bladder and create a vacuum.

2. The pressure-type vacuum suction pen according to claim 1, characterized in that, It also includes a connecting block, which is sleeved on the air guide and connected to the finger support.

3. The pressure-type vacuum suction pen according to claim 1, characterized in that, The finger rest has an opening for the user to insert their fingers.

4. The pressure-type vacuum suction pen according to claim 3, characterized in that, The opening direction of the finger support forms an angle with the air guide.

5. The pressure-type vacuum suction pen according to claim 4, characterized in that, The angle between the opening direction of the finger support and the air guide is a right angle.

6. The pressure-type vacuum suction pen according to claim 1, characterized in that, The airbag is spherical, ellipsoidal, or cylindrical.

7. The pressure-type vacuum pen according to claim 6, characterized in that, The air guide includes a bent structure, one end of which is connected to the cylindrical airbag and the other end is connected to the adsorption element.

8. The pressure-type vacuum pen according to claim 7, characterized in that, The bending structure is an L-shaped adapter or an arc-shaped adapter.

9. The pressure-type vacuum suction pen according to claim 2, characterized in that, The upper end of the connecting block and / or the finger support is provided with a support platform, and the airbag is placed on the support platform.

10. The pressure-type vacuum suction pen according to claim 2, characterized in that, The connecting block and the finger support are either separate structures or integrally formed structures.

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