Post-pressing valve type mark pen and using method thereof

Abstract

The invention relates to a rear pressure valve type mark pen and a using method thereof. The mark pen comprises a pen holder, a plug and a stirring assembly, and an inner cavity of the pen holder comprises a first ink storage cavity and a second ink storage cavity; the stirring assembly is located in the first ink storage cavity, connected with the plug and driven by the plug to stir ink. The pen further comprises a thumb attaching area, a rear-end finger attaching area and an ink storage cavity separation barrel which are matched with the pen holder to form a first observation window and a second observation window, and the included angle between the first observation window and the second observation window ranges from 90 degrees to 180 degrees. The first observation window and the second observation window allow a user to observe the ink storage amount of the first ink storage cavity. According to the mark pen, on one hand, various ink outlet control selections are provided for a user, the ink storage amount condition can be observed in various modes, corresponding pen holding posture guiding is carried out, and more accurate ink outlet control is achieved; and on the other hand, the ink can be better stirred to be uniformly mixed, and the ink stirring device is particularly suitable for propylene mark pen ink which is easy to cause toner sedimentation.

Description

Technical Field

[0001] The invention relates to the technical field of marker pens, and in particular to a rear-pressure valve type marker pen and a use method thereof. Background Art

[0002] Marker pens, also known as marker pens or marking pens, are a type of writing and drawing tool, mainly used for marking and drawing. More specifically, marker pens can be divided into front-pressure valve-type marker pens and rear-pressure valve-type marker pens according to the position of the valve. Front-pressure valve-type marker pens refer to the pen tip at the front end of the marker pen, which compresses the internal retractable structure and opens the ink outlet channel to finally discharge ink. On the contrary, rear-pressure valve-type marker pens refer to the movable cap at the rear end of the marker pen, which pushes the rod downward, thereby compressing the internal retractable structure and opening the ink outlet channel to finally discharge ink.

[0003] Patent No. CN218777341U discloses a valve pen. By pressing the driving cap, the driving cap drives the blocking member to move downward, so that the lower part of the blocking member is separated from the partition. At this time, the spring is in a compressed state and the through hole is open. The ink in the first liquid storage chamber flows into the second liquid storage chamber through the through hole, and a plurality of stirring members are integrally connected to the side of the extension rod. It can be seen that, on the one hand, the valve pen does not consider the difference in ink discharge under different pressing conditions, making it difficult for the user to accurately control the ink discharge according to different pressing conditions. On the other hand, the stirring area targeted by the stirring member is the first liquid storage chamber, and the ink used by the user when writing comes directly from the second liquid storage chamber. When the user presses the driving cap, the ink in the first liquid storage chamber will flow to the second liquid storage chamber naturally under the influence of gravity. It is easy for the ink to flow into the second liquid storage chamber without being mixed evenly, thereby causing a decrease in writing performance, especially for acrylic marker ink that is prone to color powder sedimentation. Therefore, the aforementioned valve pen has the problem of unstable ink discharge effect.

[0004] Therefore, it is still necessary to improve the existing valve pen to solve the problem that the ink discharge effect of the existing valve pen is unstable. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a rear-pressure valve type marker pen and a method of using the same, so as to solve the problem of unstable ink discharge effect of the existing rear-pressure valve type marker pen.

[0006] To achieve the above objectives:

[0007] The present invention provides a rear-pressure valve type marker pen, comprising a pen holder, a plug, and a stirring assembly, wherein the inner cavity of the pen holder comprises a first ink storage cavity and a second ink storage cavity located at the front end; the stirring assembly is located in the first ink storage cavity and is connected to the plug, and driven by the plug to stir the ink;

[0008] The rear-pressure valve type marker pen also includes a thumb fitting area and a rear-end finger fitting area. The thumb fitting area is used to position the thumb when the user presses with the index finger, and the rear-end finger fitting area is used to position the rear-end finger when the user presses with the thumb; the rear-pressure valve type marker pen also includes an ink storage chamber partition cylinder, which cooperates with the pen shaft to form a first observation window and a second observation window with an included angle of 90° to 180°; the first observation window and the second observation window are used for the user to observe the ink storage amount of the first ink storage chamber when the user presses with the thumb and the index finger, respectively.

[0009] In some embodiments, the thumb fitting area is a concave area or a surrounding area; the rear end finger fitting area is a concave area or a surrounding area.

[0010] In some embodiments, the rear-pressure valve-type marker pen further includes a movable ring detachably mounted on the pen barrel; the thumb fitting area and the rear-end finger fitting area are both located on the movable ring.

[0011] In some embodiments, the thumb fitting area and the rear finger fitting area are both surrounding point areas; only one of the thumb fitting area and the rear finger fitting area is provided with a magnetic surrounding point component;

[0012] The magnetic surrounding point assembly includes a connecting plate and two movable surrounding points; the connecting plate and the movable surrounding points attract each other; the length direction of the connecting plate is the same as the axial direction of the pen shaft; the connecting plate is embedded in the movable ring; the two movable surrounding points are distributed at both ends of the connecting plate.

[0013] In some embodiments, the first observation window and the second observation window are of equal height, and the width of the first observation window is greater than the width of the second observation window;

[0014] Or the first observation window is provided with a plurality of first scale lines distributed along its height direction, the second observation window is provided with a plurality of second scale lines distributed along its height direction, and the spacing between two adjacent first scale lines is greater than the spacing between two adjacent second scale lines.

[0015] In some embodiments, the stirring assembly includes a screen adapted to the first ink storage chamber; the screen is coaxially fixed to the plug.

[0016] In some embodiments, the stirring assembly includes a spring, a bearing ring, and at least two swing arms; the spring and the bearing ring are coaxial with the pen holder; one end of the spring presses against the inner wall of the first ink storage chamber, and the other end presses against the bearing ring; each of the swing arms is mounted on the plug and is evenly distributed around the circumference; the swing arm is inclined outward, and one end of the swing arm that is away from the plug presses against a side of the bearing ring that is away from the spring;

[0017] The stirring assembly also includes a blocking assembly; the blocking assembly is used to block each of the swing arms when the swing arms swing to be perpendicular to the pen barrel.

[0018] In some embodiments, the stirring assembly includes a rotating cylinder coaxial with the pen shaft; the side wall of the rotating cylinder is provided with a rotating drive groove extending from top to bottom; the rotating drive groove is arc-shaped; the stirring assembly also includes a rotating drive rod adapted to the rotating drive groove; the rotating drive rod is perpendicular to the pen shaft and fixed to the plug; the end of the rotating cylinder facing away from the plug has fins formed on the inner wall.

[0019] In some embodiments, the rotary drive rod passes through the rotating cylinder; the rotary drive rod does not contact the side wall of the first ink storage chamber.

[0020] The present invention also provides a method for using a rear pressure valve type marker pen, using the rear pressure valve type marker pen as described above, comprising the following steps:

[0021] S1, according to the current ink feeding control mode, select one of the thumb fitting zone and the rear finger fitting zone as a fitting zone; wherein the current ink feeding control mode is index finger pressing or thumb pressing;

[0022] S2, when the selected fitting area is the thumb fitting area, placing the thumb on the thumb fitting area, with the rear finger placed at a position opposite to the thumb fitting area;

[0023] When the fitting area is the rear finger fitting area, the rear finger is placed on the rear finger fitting area, and the index finger is placed above the rear finger.

[0024] Compared with the prior art, the present invention has the following beneficial effects: on the one hand, it provides users with a variety of ink discharge control options, and in various modes, the ink storage situation can be observed, and the corresponding pen holding posture guidance is performed, thereby achieving more accurate ink discharge control. On the other hand, the ink can be better stirred and mixed evenly, which is particularly suitable for acrylic marker inks that are prone to color powder sedimentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a schematic diagram of the overall structure of the rear pressure valve type marker pen provided by the present invention;

[0026] Figures 2 to 4 It is a schematic diagram of the internal structure of the rear pressure valve type marker pen provided by the present invention;

[0027] Figure 5 It is another overall structural schematic diagram of the rear pressure valve type marker pen provided by the present invention;

[0028] Figure 6 It is another overall structural schematic diagram of the rear pressure valve type marker pen provided by the present invention;

[0029] Figure 7 It is a structural schematic diagram of the movable ring of the rear pressure valve type marker pen provided by the present invention;

[0030] Figures 8 to 9 This is another structural schematic diagram of the movable ring of the rear pressure valve type marker pen provided by the present invention;

[0031] Figure 10 to Figure 11 It is a structural schematic diagram of a stirring assembly of a rear pressure valve type marker pen provided by the present invention;

[0032] Figure 12 to Figure 13 This is another structural schematic diagram of the stirring assembly of the rear pressure valve type marker pen provided by the present invention;

[0033] Figure 14 to Figure 15 This is another structural schematic diagram of the stirring assembly of the rear pressure valve type marker pen provided by the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Marker pens, also known as marker pens or marking pens, are a type of writing and drawing tool, mainly used for marking and drawing. More specifically, marker pens can be divided into front-pressure valve-type marker pens and rear-pressure valve-type marker pens according to the position of the valve. Front-pressure valve-type marker pens refer to the pen tip at the front end of the marker pen, which compresses the internal retractable structure and opens the ink outlet channel to finally discharge ink. On the contrary, rear-pressure valve-type marker pens refer to the movable cap at the rear end of the marker pen, which pushes the rod downward, thereby compressing the internal retractable structure and opening the ink outlet channel to finally discharge ink.

[0036] The prior art discloses a valve pen, which drives the blocking member downward by pressing the driving cap, so that the lower part of the blocking member is separated from the partition. At this time, the spring is in a compressed state and the through hole is open, and the ink in the first liquid storage chamber flows into the second liquid storage chamber through the through hole, and a plurality of stirring members are integrally connected to the side of the extension rod. It can be seen that, on the one hand, the valve pen does not take into account the difference in ink discharge under different pressing conditions, making it difficult for the user to accurately control the ink discharge according to different pressing conditions. On the other hand, the stirring area targeted by the stirring member is the first liquid storage chamber, and the ink used by the user when writing comes directly from the second liquid storage chamber. When the user presses the driving cap, the ink in the first liquid storage chamber will flow naturally to the second liquid storage chamber under the influence of gravity, and it is easy for the ink to flow into the second liquid storage chamber without being mixed evenly, thereby causing a decrease in writing performance, especially for acrylic marker ink that is prone to color powder sedimentation. Therefore, the aforementioned valve pen has the problem of unstable ink discharge effect.

[0037] The five fingers of the palm are thumb, index finger, middle finger, ring finger and little finger in order. In the present invention, the middle finger, ring finger and little finger are defined as the rear end fingers.

[0038] As an example, Figures 1 to 3 As shown, the rear pressure valve type marker pen 1 includes a pen tip 10, a pen tip 20, a pen body 30, an ink storage chamber partition cylinder 40 and a rear valve assembly 50. Specifically:

[0039] Regarding the nib 10 and the nib 20 , the nib 10 penetrates into the nib 20 and has an interference fit therewith.

[0040] The pen body 30 includes a separator ring 300, a main body tube 301, a tail cylinder 302, and an end cover 303. The separator ring 300 is formed at the front end of the main body tube 301. One end of the tail cylinder 302 is inserted into the main body tube 301 and has an interference fit therewith. The other end of the tail cylinder 302 is inserted into the end cover 303 and has an interference fit therewith. In addition, the inner cavity of the pen body 30 includes a first ink storage cavity 380 and a second ink storage cavity 381. The second ink storage cavity 381 serves as the main ink storage cavity, and the first ink storage cavity 380 serves as a buffer cavity. The capacity of the second ink storage cavity 381 is significantly larger than that of the first ink storage cavity 380. This arrangement is particularly suitable for acrylic marker ink that needs to be manually shaken before use to mix the toner evenly. After mixing evenly, the ink in the second ink storage cavity 381 is controlled to flow into the first ink storage cavity 380 for painting or writing.

[0041] Regarding the ink storage chamber partition cylinder 40, it includes a first cylinder 400 and a second cylinder 401 which are separately arranged; the partition ring 300 covers the wider end of the first cylinder 400, and the narrower end of the first cylinder 400 penetrates into the wider end of the second cylinder 401; the first ink storage chamber 380 is surrounded by the first cylinder 400 and the partition ring 300.

[0042] The rear valve assembly 50 includes a plug 501, a spring (not shown in the figure), a connecting tube 502, a silicone sheet 503, and a movable cap 504. The plug 501 is movably inserted into the second cylinder 401, and the spring abuts against the skirt of the plug 501. After the user loosens the movable cap 504, the spring provides a reset force for the plug 501. One end of the connecting tube 502 is for the plug 501 to penetrate and fix, and the other end of the connecting tube 502 abuts against the silicone sheet 503. The outer edge / outer circumference of the silicone sheet 503 is fixed to the interior of the tail cylinder 302. The movable cap 504 is movably inserted into the end cover 303 and can be pressed by the user to control the outflow of ink.

[0043] The embodiment of the present invention provides a rear pressure valve type marker pen 1, such as Figure 1 to Figure 2 As shown, it includes a pen holder 30, a plug 501, and a stirring assembly 60. The inner cavity of the pen holder 30 includes a first ink storage cavity 380 and a second ink storage cavity 381 located at the front end; the stirring assembly 60 is located in the first ink storage cavity 380 and is connected to the plug 501, and is driven by the plug 501 to stir the ink;

[0044] The rear pressure valve type marker pen 1 also includes a thumb fitting area 70 and a rear finger fitting area 80. The thumb fitting area 70 is used to position the thumb when the user presses with the index finger, and the rear finger fitting area 80 is used to position the rear finger when the user presses with the thumb; the rear pressure valve type marker pen 1 also includes an ink storage chamber partition cylinder 40, which cooperates with the pen body 30 to form a first observation window 382 and a second observation window 383 with an included angle of 90° to 180°; the first observation window 382 and the second observation window 383 are used for the user to observe the ink storage amount of the first ink storage chamber 380 when the user presses with the thumb and the index finger respectively.

[0045] Compared with the prior art, the rear-pressure valve type marker pen 11 provided in this embodiment has the following advantages:

[0046] On the one hand, it provides users with a variety of ink control options, and the ink storage level can be observed in various modes, and corresponding pen holding posture guidance is provided, achieving more precise ink control. (1) When the user presses the movable cap 504 with the index finger, the thumb is placed on the thumb fitting area 70. The thumb fitting area 70 positions the tip of the thumb so that the tip of the thumb is in a horizontal position and is approximately perpendicular to the pen shaft 30. The rear fingers (middle finger, ring finger, and little finger) are placed at a position opposite to the thumb fitting area 70. By setting the thumb fitting area 70, the user can be guided to control the ink discharge with a specific pen holding posture, so that the marker pen is not easy to fall out of the hand or slide during the process of pressing the movable cap 504, the index finger is easier to exert force, and the control of the movable cap 504 is more stable and uniform. In addition, when the movable cap 504 is pressed with the index finger, only the second observation window 383 is located within the user's field of vision. The user can observe the ink storage volume of the first ink storage chamber 380 through the second observation window 383, and flexibly adjust the pressing frequency and pressing depth of the movable cap 504 according to the change of the ink storage volume. Therefore, by combining the thumb contact area 70 and the second observation window 383, more precise ink discharge control can be achieved when the index finger presses the movable cap 504. (2) When the user presses the movable cap 504 with the thumb, the rear finger is placed on the rear finger contact area 80, and the rear finger contact area 80 positions the fingertip of the rear finger so that the fingertip of the rear finger is in a horizontal position and is approximately perpendicular to the pen shaft 30. The index finger is placed above the rear finger. By setting the rear finger contact area 80, the user can be guided to control the ink discharge with a specific pen holding posture, so that the marker pen is not easy to fall out of the hand or slide during the process of pressing the movable cap 504, the thumb is easier to exert force, and the control of the movable cap 504 is more stable and uniform; in addition, when the thumb presses the movable cap 504, only the first observation window 382 is within the user's line of sight. The user can observe the ink storage volume of the first ink storage chamber 380 through the first observation window 382, ​​and flexibly adjust the pressing frequency and pressing depth of the movable cap 504 according to the change of the ink storage volume. Therefore, by combining the rear finger contact area 80 and the first observation window 382, ​​more precise ink discharge control can be achieved when the movable cap 504 is pressed with the thumb. (3) The first observation window 382 and the second observation window 383 are staggered, and only the corresponding ink discharge control mode appears within the user's field of vision, which can avoid interference from the other window and allow the user to concentrate more.

[0047] On the other hand, the ink can be stirred better and mixed evenly, which is especially suitable for acrylic marker ink that is prone to color powder sedimentation. Specifically, when the user presses the rear end of the valve-type marker 1 to make the ink in the second ink storage chamber 381 flow into the first ink storage chamber 380, the stirring component 60 will move with the plug 501 to directly stir and mix the ink in the first ink storage chamber 380 for the user to write, providing a better writing experience.

[0048] In summary, the rear-pressure valve type marker pen 1 provided in this embodiment can provide a more stable ink delivery effect.

[0049] In some embodiments, the angle between the first observation window 382 and the second observation window 383 is 90°, which facilitates the user to switch the pen holding posture between pressing the movable cap 504 with the thumb and pressing the movable cap 504 with the index finger, while avoiding interference from another window.

[0050] like Figure 1 , Figure 2 as well as Figure 4 As shown, in some embodiments, the main tube 301 includes a first transparent rod body 304, a second transparent rod body 305, the first cylinder body 400 is a transparent cylinder body, the first transparent rod body 304 and the first cylinder body 400 cooperate to form a first observation window 382, ​​and the second transparent rod body 305 and the first cylinder body 400 cooperate to form a second observation window 383. Furthermore, the main tube 301 is integrally formed, and the integral forming can reduce the number of parts assembly steps and is conducive to ensuring that the performance tends to be consistent. It should be noted that in order to better understand the position or shape of the first transparent rod body 304 and the second transparent rod body 305, a mesh pattern is used for identification, and the mesh pattern is only used to indicate the specific position or shape of the first transparent rod body 304 and the second transparent rod body 305, and does not play any other limiting role.

[0051] like Figure 5 to Figure 6 As shown, in some embodiments, the thumb fitting area 70 is a concave area or a surrounding area; the rear finger fitting area 80 is a concave area or a surrounding area. Specifically, the concave area refers to a receiving area formed by inward depression, and the surrounding area refers to a receiving area formed by setting a plurality of protruding objects such as protruding points 306. The concave area or the surrounding area is used to form the fitting area, which is convenient for integrated molding and processing.

[0052] like Figure 5 to Figure 6 As shown, in some embodiments, the thumb fitting area 70 and the rear finger fitting area 80 are both located on the pen holder 30, which is convenient for molding directly on the pen holder 30 without adding additional parts. The rear finger fitting area 80 can accommodate only one of the middle finger, the ring finger, and the little finger, or any combination of the three. When accommodating multiple fingers, it can include multiple small concave areas, for example, corresponding to the middle finger, the ring finger, and the little finger respectively, or it can include a large concave area, which can accommodate the middle finger, the ring finger, and the little finger at the same time.

[0053] like Figure 7As shown, in some embodiments, the rear pressure valve type marker pen 1 also includes a movable ring 90 detachably mounted on the pen body 30, providing the user with more diverse usage options. When the user only needs to draw or write, the movable ring 90 can be removed first; the thumb fitting area 70 and the rear end finger fitting area 80 are both located on the movable ring 90.

[0054] like Figure 7 As shown, in some embodiments, the movable ring 90 has two thumb fitting areas 70 of unequal size and two rear-end finger fitting areas 80 of unequal size; there is a rear-end finger fitting area 80 between two adjacent thumb fitting areas 70; a) is a front side view, and b) is a rear side view. The movable ring 90 rotates coaxially around the pen shaft 30 and can switch to fitting areas of different sizes to adapt to fingertips of different thicknesses, so that the user can choose a more suitable fitting area to have a tighter fit; the outer cylindrical surface of the pen shaft 30 is formed with a convex column 307 extending along its radial direction; at least one of the first observation window 382 and the second observation window 383 corresponds to the convex column 307; the front end of the movable ring 90 is provided with an alignment groove 980 adapted to the convex column 307. After rotating to the specified position, the movable ring 90 can be limited by the cooperation of the alignment groove 980 and the convex column 307 to prevent it from rotating. In addition, when the user removes the movable ring 90 from the pen body 30, the boss 307 can stop the pen body 30 during its rolling process. That is, in addition to cooperating with the alignment groove 980 and limiting the movable ring 90, the boss 307 also has the function of preventing the pen body 30 from rolling and falling.

[0055] like Figure 7 As shown, in some embodiments, the movable ring 90 includes a main ring body 900 and auxiliary ring bodies 901 distributed at both ends of the main ring body 900; the main ring body 900 is a hard ring, and the auxiliary ring body 901 is a rubber ring; the auxiliary ring body 901 is fixed to the end of the main ring body 900. The above structure is adopted to facilitate the disassembly and assembly of the movable ring 90. The auxiliary ring body 901 is a rubber ring with deformation ability. When it needs to be disassembled, the auxiliary ring body 901 is lifted upward, and the main ring body 900 can slide freely. The main ring body 900 is slid out of the pen body 30, and the disassembly of the movable ring 90 is realized; on the contrary, when it needs to be fixed, the user can adjust the position of the main ring body 900 on the pen body 30 according to the situation of his fingertips. After adjusting to the specified position, the auxiliary ring body 901 is turned down to make it fit on the pen body 30, and the fixing of the movable ring 90 on the pen body 30 is realized.

[0056] like Figure 8As shown, in some embodiments, the thumb fitting area 70 and the rear end finger fitting area 80 are both surrounding point areas; only one of the thumb fitting area 70 and the rear end finger fitting area 80 is provided with a magnetic surrounding point assembly 902; the magnetic surrounding point assembly 902 includes a connecting piece 903 and two movable surrounding points 904; the connecting piece 903 and the movable surrounding points 904 attract each other; the length direction of the connecting piece 903 is the same as the axial direction of the pen shaft 30; the connecting piece 903 is embedded in the movable ring 90; the two movable surrounding points 904 are distributed at both ends of the connecting piece 903. In the aforementioned structure, the movable ring 90 rotates coaxially around the pen shaft 30. When the thumb fitting area 70 is needed, the magnetic surrounding point assembly 902 is rotated to be directly above the thumb fitting area 70, and the positions of the two movable surrounding points 904 on the connecting piece 903 are adjusted to adapt to fingertips of different thicknesses. In addition to allowing a tighter fingertip fit, the thumb fitting area 70 and the rear end finger fitting area 80 also share the magnetic surrounding point assembly 902, thereby improving practicality.

[0057] Furthermore, Fig. 9 As shown, in some embodiments, the movable surrounding point 904 includes a magnetic block 905 and a spherical rubber head 906 , the spherical rubber head 906 is sleeved and fixed on the magnetic block 905 , and the connecting piece 903 can be a stainless steel sheet and is embedded and fixed on the pen body 30 .

[0058] like Figure 5 to Figure 6 As shown, in some embodiments, the first observation window 382 and the second observation window 383 are of the same height, and the width of the first observation window 382 is greater than the width of the second observation window 383; or the first observation window 382 is provided with a plurality of first scale lines 384 distributed along its height direction, and the second observation window 383 is provided with a plurality of second scale lines 385 distributed along its height direction, and the spacing between two adjacent first scale lines 384 is greater than the spacing between two adjacent second scale lines 385. Generally speaking, the force stability and strength of the thumb are better than those of the index finger, therefore, by making the first observation window 382 wider or the spacing between two adjacent first scale lines 384 larger, the user can intuitively feel that the ink feeding speed when pressed with the thumb is faster than the ink feeding speed when pressed with the index finger, which is more conducive to the user's ink output control.

[0059] like Figure 2 , Fig.10As shown, in some embodiments, the stirring assembly 60 includes a screen 600 adapted to the first ink storage chamber 380; the screen 600 is coaxially fixed with the plug 501. When the ink flows downward into the first ink storage chamber 380, the screen 600 has a diversion effect on it, which can play a first stirring and mixing role. When the ink is concentrated at the front end of the first ink storage chamber 380 (that is, the position close to the writing end), the screen 600 is pressed down, which will play a second stirring and mixing role on the concentrated ink, thereby effectively improving the uniformity of the ink. In addition, the screen 600 has a simple structure, is easy to process, and has a low production cost.

[0060] Furthermore, Fig.11 As shown, in some embodiments, the screen 600 is high in the middle and low around the side facing the plug 501. When the screen 600 follows the plug 501 to reset (i.e., move upward), the inclined structure of the screen 600 can increase the speed of ink returning to the first ink storage chamber 380, while reducing the amount of ink brought back to the second ink storage chamber 381.

[0061] In addition, (1) preferably, the screen 600 and the plug 501 are integrally formed, which can reduce the number of assembly steps. (2) The shapes of the holes in the screen 600 include, but are not limited to, circular, diamond-shaped, and rounded rectangular holes. In addition, since the main function of the middle area of ​​the screen 600 is to be fixedly connected to the plug 501 and not to promote ink mixing, the middle area may not be punched, and only the edges or periphery of the screen 600 may be punched. (3) preferably, the thickness of the thinnest part of the screen 600 is 0.7-1.2 mm, the thickness of the thickest part is 1.5-2 mm, and the inclination angle is 3-15°.

[0062] like Fig.12As shown, in some embodiments, the stirring assembly 60 includes a spring (not shown in the figure), a load-bearing ring 601, and at least two swing arms 602; the spring and the load-bearing ring 601 are coaxial with the pen body 30; one end of the spring presses against the inner wall of the first ink storage chamber 380, and the other end presses against the load-bearing ring 601; each swing arm 602 is installed on the plug 501 and is evenly distributed around the circumference; the swing arm 602 is inclined outward, and the end facing away from the plug 501 presses against the side of the load-bearing ring 601 facing away from the spring; the stirring assembly 60 also includes a blocking assembly 603; the blocking assembly 603 is used to block each swing arm 602 when each swing arm 602 swings to be perpendicular to the pen body 30. When in use, the swing arm 602 follows the plug 501 downward, pressing the load ring 601 downward, thereby compressing the spring. The swing arm 602 is subjected to the reverse force of the load ring 601 and swings upward until it is perpendicular to the pen barrel 30 and is in a stable state. As the plug 501 continues to descend, the swing arm 602 can stir the ink in a stable state; the load ring 601 provides a force application position for the swing arm 602 and the spring, ensuring the pressing stability of the swing arm 602 and also stirring the ink. Since the load ring 601 is a hollow structure, when the load ring 601 is reset (i.e., upward), the ink will not be brought back to the second ink storage chamber 381; in addition, which is obviously different from the structure of the mesh plate 600 mentioned above, the spring in the first ink storage chamber 380 can replace the spring originally located in the second cylinder 401, that is, there is no need to set a spring in the second cylinder 401, and the spring in the first ink storage chamber 380 can complete the reset of the plug 501.

[0063] like Fig.13 As shown, in some embodiments, the stirring assembly 60 also includes a connecting piece 903 coaxially fixed with the plug 501; the edge of the connecting piece 903 is provided with a connecting port 981 corresponding to the swing arm 602; the interior of the connecting port 981 is formed with a rotating shaft 904; the end of the swing arm 602 is formed with a bayonet 604 adapted to the rotating shaft 904; the connecting piece 903 is added, and since the connecting piece 903 is wider than the plug 501, more installation positions can be provided, thereby reducing the difficulty of connecting the swing arm 602 with the plug 501, the bayonet 604 cooperates with the rotating shaft 904 to achieve a swing connection, and facilitate the disassembly and assembly of the swing arm 602. The blocking assembly 603 includes a convex ridge 605 corresponding to the swing arm 602; the convex ridge 605 is fixed on the rotating shaft 904 and is used to block the swing arm 602. The use of this structure for limiting is simple in structure.

[0064] In addition, (1) preferably, the connecting piece 903 is integrally formed with the plug 501. (2) preferably, as shown in the figure, bosses 308 are formed on both sides of the inner wall of the first ink storage chamber 380. After the spring is placed in, the two bosses 308 can cooperate to position the spring, further improving the activity stability of the spring. (3) preferably, the ridge 605 is integrally formed with the rotating shaft 904.

[0065] like Fig.14 As shown, in some embodiments, the stirring assembly 60 includes a rotating cylinder 606 coaxial with the pen holder 30; the side wall of the rotating cylinder 606 is provided with a rotating driving groove 680 extending from top to bottom; the rotating driving groove 680 is arc-shaped; the stirring assembly 60 also includes a rotating driving rod 607 adapted to the rotating driving groove 680; the rotating driving rod 607 is perpendicular to the pen holder 30 and fixed to the plug 501; the end of the rotating cylinder 606 away from the plug 501 is formed with a fin 608 on the inner wall. When in use, the rotating driving rod 607 follows the plug 501 downward and squeezes the rotating cylinder 606 downward. Through the cooperation of the rotating driving groove 680 and the rotating driving rod 607, the downward movement of the rotating driving rod 607 can be converted into the rotation of the rotating cylinder 606, thereby driving the rotation of the fin 608, and realizing the stirring and mixing of the ink in the first ink storage chamber 380, thereby improving the uniformity of the ink.

[0066] like Figure 14 to Figure 15 As shown, in some embodiments, the rotary drive rod 607 passes through the rotating cylinder 606, so that the fitting area between the rotary drive rod 607 and the rotary drive groove 680 is maximized, thereby making it easier to drive the rotating cylinder 606 to rotate. The rotary drive rod 607 does not contact the side wall of the first ink storage chamber 380, thereby reducing the friction between the rotary drive rod 607 and the side wall of the first ink storage chamber 380.

[0067] like Fig.14 As shown, in some embodiments, the rotating cylinder 606 divides the first ink storage chamber 380 into an outer cavity 385 and an inner cavity 386; the outer cavity 385 is surrounded by the side wall of the first ink storage chamber 380 and the outer circular surface of the rotating cylinder 606; the inner cavity 386 is surrounded by the inner circular surface of the rotating cylinder 606; a through hole 681 is provided at the end of the rotating cylinder 606 away from the plug 501; the through hole 681 connects the outer cavity 385 and the inner cavity 386, so that ink can flow freely in the outer cavity 385 and the inner cavity 386, and the ink in the outer cavity 385 can enter the inner cavity 386 and finally flow to the pen tip 10 for the user to write; there are multiple fins 608, and through holes 681 are provided between two adjacent fins 608, which are staggered and distributed to facilitate the free flow of ink.

[0068] In addition, if Fig.14 As shown, the first ink storage chamber 380 is provided with an alignment groove 387 adapted to the rotating cylinder 606 for convenient and quick alignment.

[0069] The embodiment of the present invention further provides a method for using a rear pressure valve type marker pen, using the rear pressure valve type marker pen as described above, comprising the following steps:

[0070] S1, according to the current ink feeding control mode, select one of the thumb fitting area 70 and the rear finger fitting area 80 as a fitting area; wherein the current ink feeding control mode is index finger pressing or thumb pressing;

[0071] S2, when the selected fitting area is the thumb fitting area 70, the thumb is placed in the thumb fitting area 70, and the rear finger is placed at a position opposite to the thumb fitting area 70;

[0072] When the fitting area is the rear finger fitting area 80, the rear finger is placed on the rear finger fitting area 80, and the index finger is placed above the rear finger.

[0073] The method provided in this embodiment has the advantages of being able to provide users with a variety of ink output control options and providing corresponding pen holding posture guidance in various modes, and is easy to use and flexible.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rear-pressure valve marker pen, comprising a pen holder, a plug, and a stirring assembly, wherein the inner cavity of the pen holder comprises a first ink storage cavity and a second ink storage cavity located at the front end; characterized in that: The stirring component is located in the first ink storage chamber and is connected to the plug to stir the ink; The rear-pressure valve type marker pen also includes a thumb fitting area and a rear-end finger fitting area. The thumb fitting area is used to position the thumb when the user presses with the index finger, and the rear-end finger fitting area is used to position the rear-end finger when the user presses with the thumb; the rear-pressure valve type marker pen also includes an ink storage chamber partition cylinder, which cooperates with the pen shaft to form a first observation window and a second observation window with an included angle of 90° to 180°; the first observation window and the second observation window are used for the user to observe the ink storage amount of the first ink storage chamber when the user presses with the thumb and the index finger, respectively.

2. The rear-pressure valve type marker pen according to claim 1, characterized in that: The thumb fitting area is a concave area or a surrounding area; the rear end finger fitting area is a concave area or a surrounding area.

3. The rear pressure valve type marker pen according to claim 2, characterized in that: The rear-pressure valve-type marker pen also includes a movable ring that is detachably sleeved on the pen holder; the thumb fitting area and the rear-end finger fitting area are both located on the movable ring.

4. The rear-pressure valve type marker pen according to claim 3, characterized in that: The thumb fitting area and the rear finger fitting area are both point surrounding areas; only one of the thumb fitting area and the rear finger fitting area is provided with a magnetic point surrounding component; The magnetic surrounding point assembly includes a connecting plate and two movable surrounding points; the connecting plate and the movable surrounding points attract each other; the length direction of the connecting plate is the same as the axial direction of the pen shaft; the connecting plate is embedded in the movable ring; the two movable surrounding points are distributed at both ends of the connecting plate.

5. The rear-pressure valve type marker pen according to any one of claims 1 to 4, characterized in that: The first observation window and the second observation window are of equal height, and the width of the first observation window is greater than the width of the second observation window; Or the first observation window is provided with a plurality of first scale lines distributed along its height direction, the second observation window is provided with a plurality of second scale lines distributed along its height direction, and the spacing between two adjacent first scale lines is greater than the spacing between two adjacent second scale lines.

6. The rear-pressure valve type marker pen according to claim 1, characterized in that: The stirring assembly includes a screen plate adapted to the first ink storage cavity; the screen plate is coaxially fixed with the plug.

7. The rear-pressure valve type marker pen according to claim 1, characterized in that: The stirring assembly comprises a spring, a bearing ring, and at least two swing arms; the spring and the bearing ring are coaxial with the pen holder; one end of the spring presses against the inner wall of the first ink storage cavity, and the other end presses against the bearing ring; each of the swing arms is mounted on the plug and is evenly distributed around the circumference; the swing arm is inclined outward, and one end of the swing arm that is away from the plug presses against the side of the bearing ring that is away from the spring; The stirring assembly also includes a blocking assembly; the blocking assembly is used to block each of the swing arms when the swing arms swing to be perpendicular to the pen barrel.

8. The rear-pressure valve type marker pen according to claim 1, characterized in that: The stirring assembly includes a rotating cylinder coaxial with the pen shaft; the side wall of the rotating cylinder is provided with a rotating drive groove extending from top to bottom; the rotating drive groove is arc-shaped; the stirring assembly also includes a rotating drive rod adapted to the rotating drive groove; the rotating drive rod is perpendicular to the pen shaft and fixed to the plug; the end of the rotating cylinder facing away from the plug has fins formed on the inner wall.

9. The rear-pressure valve type marker pen according to claim 8, characterized in that: The rotation driving rod passes through the rotation cylinder; the rotation driving rod does not contact the side wall of the first ink storage cavity.

10. A method for using a rear pressure valve type marker pen, using the rear pressure valve type marker pen as claimed in any one of claims 1 to 9, characterized in that: The steps include: S1, according to the current ink feeding control mode, select one of the thumb fitting zone and the rear finger fitting zone as a fitting zone; wherein the current ink feeding control mode is index finger pressing or thumb pressing; S2, when the selected fitting area is the thumb fitting area, placing the thumb on the thumb fitting area, with the rear finger placed at a position opposite to the thumb fitting area; When the fitting area is the rear finger fitting area, the rear finger is placed on the rear finger fitting area, and the index finger is placed above the rear finger.

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