Separable table pen

Abstract

A detachable table pen comprises a base, and an insertion hole for a pen cap to be inserted is formed in the base. A first opening and closing arm and a second opening and closing arm are arranged in the base, the first opening and closing arm and the second opening and closing arm are rotatably connected, the first opening and closing arm and the second opening and closing arm are respectively divided into an upper part and a lower part along the rotatable position, and a containing space is formed between the first opening and closing arm at the upper part and the second opening and closing arm at the second part. The pen cap is arranged in the containing space, a first elastic piece is arranged between the upper portion of the pen cap and the inner wall of the base, and the first elastic piece drives the first opening and closing arm and the second opening and closing arm to be folded to be connected with the pen cap in a clamped mode. A space for inserting the pressing piece is arranged between the first opening and closing arm and the second opening and closing arm at the lower part, and the pressing piece is used for driving the first opening and closing arm and the second opening and closing arm at the lower part to be separated from each other; the table pen is richer in use scene, can be used as a high-grade table pen and can also be taken away to serve as a high-grade business pen to be independently used.

Description

Technical Field

[0001] The present application relates to the technical field of writing tools, and in particular to a detachable desk pen. Background Art

[0002] A desk pen is a writing instrument with a support underneath and a socket on the support, so that the pen body can be plugged into the socket and pulled out of the socket when in use. Currently, desk pens on the market are mostly used in counter scenarios such as banks, securities companies, and administrative agencies. The support of the desk pen used in these scenarios is equivalent to the pen cap, and the pen body can only be plugged into the socket when not in use. Therefore, this type of desk pen has a single structure and is not easy to change in usage scenarios. It can often only be used as a desk pen at the counter and cannot be taken away for use as a high-end business pen. Utility Model Content

[0003] In response to the above-mentioned deficiencies in the prior art, the present application provides a detachable desk pen with richer usage scenarios, which can be used as a high-end desk pen or taken away and used separately as a high-end business pen.

[0004] In order to solve the above technical problems, the technical solution adopted in the present application is: a detachable desk pen, whose structure includes a base, and the base is provided with a socket for inserting a pen cap; a first opening and closing arm and a second opening and closing arm are provided in the base, and the first opening and closing arm and the second opening and closing arm are rotatably connected, and the first opening and closing arm and the second opening and closing arm are divided into upper and lower parts along the rotatable position, and an accommodating space is formed between the first opening and closing arm and the second opening and closing arm of the upper part, and the pen cap is arranged in the accommodating space, and a first elastic member is provided between the upper part and the inner wall of the base, and the first elastic member drives the first opening and closing arm and the second opening and closing arm to close and clamp the pen cap; a space for inserting a pressing member is provided between the first opening and closing arm and the second opening and closing arm of the lower part, and the pressing member is used to drive the first opening and closing arm and the second opening and closing arm of the lower part to separate from each other.

[0005] With the above structure, the pen cap can be inserted into the base, and then the first elastic member pushes the first opening and closing arm and the second opening and closing arm elastically, so that the upper first opening and closing arm and the second opening and closing arm close together and engage the pen cap, thereby fixing the pen cap on the base. At this time, the pen holder can be pulled to detach the pen holder from the pen cap to realize the writing function, and the pen holder can be inserted into the pen cap again after use. The above process realizes the use of the desk pen in scenes such as counters; and when it is necessary to detach the pen holder and the pen cap from the base as a whole to form a complete writing tool that can be carried separately When the pen is opened, the pressing piece can be inserted into the space at the bottom through the pressing piece, so that the first opening and closing arm and the second opening and closing arm at the bottom are separated from each other. In the above separation process, because the two opening and closing arms are rotatably connected to each other, the first opening and closing arm and the second opening and closing arm at the upper part will also separate at the same time, similar to the movement process of scissors. At this time, the pen cap can be disengaged, so that the pen cap and the pen body can be pulled out of the base as a whole. Therefore, the desk pen structure of the present application has more usage scenarios. It can be used as a high-end desk pen or taken away and used alone as a high-end business pen, which is of higher grade.

[0006] Furthermore, an elastic member support seat and a pen cap support seat are also provided in the accommodating space formed between the first opening and closing arm and the second opening and closing arm on the upper part, and a second elastic member is provided between the elastic member support seat and the pen cap support seat, one end of the second elastic member is sleeved on the elastic member support seat, and the other end is sleeved on the pen cap support seat, one end of the elastic member support seat is fixedly connected to the inner wall of the base, and the pen cap support seat can move up and down following the second elastic member; with the above structure, by abutting the lower end of the pen cap against the pen cap support seat, and then arranging the second elastic member between the pen cap support seat and the elastic member support seat, when the pen cap is clamped, the second elastic member is compressed by the pen cap support seat and the pen cap, and at this time the pen cap cannot be pulled out with the pen barrel, and only the pen barrel can be pulled out for use; and when the pressing member drives the first opening and closing arm and the second opening and closing arm to separate, the second elastic member stretches to drive the pen cap to move upward, which makes it more convenient to separate the pen cap from the base.

[0007] Furthermore, the first opening and closing arm and the second opening and closing arm are provided with a slide groove extending in the up and down directions, and the pen cap support seat is provided with a slide rod extending laterally, and the slide rod is slidably fitted in the slide groove; with this structure, when the pen cap support seat follows the up and down movement of the second elastic member, the sliding can be kept smooth and the reset can be accurate.

[0008] Furthermore, the first opening and closing arm and the second opening and closing arm are provided with relatively extending extension walls, and the extension walls are used to be inserted into the gap between the pen clip and the pen cap body of the pen cap; with this structure, when the two opening and closing arms are gathered together, the extension walls can be inserted into the gap between the pen clip and the pen cap body, thereby realizing the clamping and fixing of the pen cap.

[0009] Furthermore, the first opening and closing arm and the second opening and closing arm are both provided with a rotating hole, and a rotating shaft is provided in the rotating hole, and the rotating shaft is fixedly connected to the inner wall of the base; with this structure, the first opening and closing arm and the second opening and closing arm are rotatably connected to each other through the rotating hole by the same rotating shaft, forming a structure similar to scissors, so that the two opening and closing arms are separated under the action of the pressing member, thereby separating the pen cap from it; and under the elastic pushing force of the first elastic member, the two opening and closing arms can be gathered together, and the pen cap can be clamped and fixed again.

[0010] Furthermore, a bearing is provided in the rotating hole, and the inner ring of the bearing is tightly fitted with the rotating shaft (tight fit or interference fit, and the outer ring of the bearing is tightly fitted with the inner wall of the rotating hole); with this structure, the rotation of the bearing is smoother, and even under the action of a small driving force, the separation of the two opening and closing arms can be achieved, which is more convenient to drive.

[0011] Furthermore, the pressing member includes a button protruding from the outer wall of the base, and side wings are provided on both sides of the button, and the side wings are connected to the button support column. The button support column is sleeved with a third elastic member, and a separating body is connected to the inside of the button, and the separating body is inserted between the first opening and closing arm and the second opening and closing arm at the lower part to separate from each other; with this structure, when it is necessary to pull out the pen cap together, the button is pressed, and the third elastic members on the two wings of the button are compressed along the button support column, and the separating body is also driven to be inserted into the space between the two lower opening and closing arms, so that the first opening and closing arms and the second opening and closing arms at the lower part are separated from each other, and the upper opening and closing arms are separated from each other, and the extending wall is disengaged from the pen clip, so that the pen cap is disengaged and pulled out; after releasing the button, the third elastic member elastically extends and resets, driving the separating body to extend from the space between the two lower opening and closing arms. Under the elastic extension force of the first elastic member, the first opening and closing arms and the second opening and closing arms at the upper part are pushed together to fix the pen cap again.

[0012] Furthermore, the plug-in ends of the first opening and closing arm and the second opening and closing arm at the lower part have a conical surface, and the corresponding separating body is provided with a conical portion. With this structure, the two opening and closing arms can be gradually separated under the guidance of the conical surface after the separating body is pressed by a button, and the separation is smoother.

[0013] Furthermore, the base includes a first base and a second base, and the first base and the second base both have a vertically extending coupling surface, and the first base and the second base are mutually clamped and connected at the coupling surface position; adopting this structure facilitates the assembly and separation of the base, and also facilitates the assembly and disassembly of various components of the inner wall.

[0014] Furthermore, after the first base and the second base are connected, an opening is formed at the upper end surface thereof, a top cover is connected in the opening, and the plug-in hole is located on the top cover; with this structure, the top cover can be set separately, which is convenient for disassembly and assembly between the base.

[0015] Furthermore, after the first base and the second base are snapped together, a convex ring extends inward from the opening formed at the upper end surface thereof, and a buckle is provided on the corresponding side wall of the top cover, and the buckle abuts against the lower surface of the convex ring; with this structure, the top cover can be firmly snapped into the opening to achieve a stable connection with the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the detachable desk pen of the present application.

[0017] Figure 2 A schematic structural diagram of the first view visible inside the detachable desk pen of the present application.

[0018] Figure 3 A schematic structural diagram of the second view visible inside the detachable desk pen of the present application.

[0019] Figure 4 A schematic structural diagram of the third view visible inside the detachable desk pen of the present application.

[0020] Figure 5 A schematic structural diagram of the fourth view of the interior of the detachable desk pen of the present application.

[0021] Figure 6 Schematic diagram of the internal structure of the detachable desk pen of this application.

[0022] Figure 7 Structural schematic diagram of the first exploded view of the detachable desk pen of the present application.

[0023] Figure 8 Structural schematic diagram of the second view of the exploded diagram of the detachable desk pen of the present application.

[0024] Figure 9 A schematic structural diagram of a vertical cross-sectional view of the detachable desk pen of the present application.

[0025] Figure 10 A schematic structural diagram of a transverse cross-sectional view of the detachable desk pen of the present application.

[0026] As shown in the accompanying drawings: 1. Base, 101. First base, 102. Second base, 103. Connecting hole, 104. Opening, 105. Raised ring, 2. Pen cap, 3. First opening and closing arm, 4. Second opening and closing arm, 5. First elastic member, 6. Pressing member, 601. Button, 602. Side wing, 603. Button support column, 604. Separating body, 605. Conical portion, 7. Elastic member support seat, 8. Pen cap support seat, 801. Sliding rod, 9. Second elastic member, 10. Slide groove, 11. Extension wall, 12. Rotating hole, 13. Rotating shaft, 14. Bearing, 15. Third elastic member, 16. Conical surface, 17. Top cover, 1701. Buckle, 18. Pen barrel. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the embodiments and drawings. Obviously, the embodiments described are only preferred embodiments, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this invention.

[0028] In addition, it should be noted that: when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can be another intermediate component, fixed through the intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be another intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there can be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only; in this application, the front and rear ends are the end where the pen tip is extended in the use state as the front and the end where the pressing part is located as the rear. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] As attached Figure 1-10As shown, a detachable desk pen of the present application comprises a base 1 (i.e., the support of the desk pen), the base 1 being provided with an insertion hole 103 for inserting a pen cap 2; a first opening and closing arm 3 and a second opening and closing arm 4 being provided in the base 1, the first opening and closing arm 3 and the second opening and closing arm 4 being rotatably connected to each other, the first opening and closing arm 3 and the second opening and closing arm 4 being divided into an upper part and a lower part along the rotatable position, an accommodating space being formed between the first opening and closing arm 3 and the second opening and closing arm 4 in the upper part, the pen cap 2 (part of the pen cap is located in the accommodating cavity, and the other part extends out of the base to facilitate the insertion of the pen shaft 18) being provided in the accommodating space Inside, a first elastic member 5 is provided between the upper first opening and closing arm 3 and the second opening and closing arm 4 and the inner wall of the base 1 (that is, the first elastic member extends laterally, and its two ends are respectively connected between the opening and closing arms on the corresponding sides and the inner wall of the base, and its function is to generate a pushing force on the two opening and closing arms, so that the two are closed to form a clamping connection with the pen cap). The first elastic member 5 drives the first opening and closing arm 3 and the second opening and closing arm 4 to close and clamp the pen cap 2; a space for inserting a pressing member 6 is provided between the lower first opening and closing arm 3 and the second opening and closing arm 4, and the pressing member 6 is used to drive the lower first opening and closing arm 3 and the second opening and closing arm 4 to separate from each other.

[0030] With the above structure, the pen cap can be inserted into the base, and then the first elastic member can push the first opening and closing arm and the second opening and closing arm elastically, so that the upper first opening and closing arm and the second opening and closing arm can close and clamp the pen cap, thereby fixing the pen cap on the base. At this time, the pen holder can be pulled to detach the pen holder from the pen cap to realize the writing function, and the pen holder can be inserted into the pen cap again after use. The above process realizes the use function of the desk pen in scenes such as counters; and when it is necessary to detach the pen holder and the pen cap from the base as a whole to form a complete writing tool, When carried alone, it can be inserted into the space at the bottom through the pressing piece, so that the first opening and closing arm and the second opening and closing arm at the bottom are separated. During the above separation process, because the two are rotatably connected, the first opening and closing arm and the second opening and closing arm at the top are also separated at the same time, similar to the movement process of scissors. At this time, the pen cap can be disengaged, so that the pen cap and the pen body can be pulled out of the base as a whole. Therefore, the desk pen structure of the present application has more usage scenarios. It can be used as a high-end desk pen or taken away and used alone as a high-end business pen, which is of higher grade.

[0031] As attached Figure 2-9As shown, an elastic member support seat 7 and a pen cap support seat 8 are further provided in the accommodating space formed between the first opening and closing arm 3 and the second opening and closing arm 4 of the upper part described in the present application, and a second elastic member 9 is provided between the elastic member support seat 7 and the pen cap support seat 8 (the second elastic member is vertically arranged), one end of the second elastic member 9 is sleeved on the elastic member support seat 7, and the other end is sleeved on the pen cap support seat 8, one end of the elastic member support seat 7 is fixedly connected to the inner wall of the base 1 (that is, the end of the elastic member support seat extending laterally is connected to the inner wall of the base on the corresponding side, so that the elastic member support seat is vertically positioned), and the pen cap support seat 8 can move up and down with the second elastic member 9; specifically, the lower end of the pen cap abuts against the pen cap support seat to be supported, and the lower end of the pen cap support seat is provided with a recess (see specifically Figure 9 ) for the second elastic member to fit, and the elastic member support seat is provided with a cylinder for the second elastic member to fit, thereby connecting the second elastic member between the two. When the pen cap is in the engaged state, the second elastic member is compressed, and when the pen cap is detached from the engaged state, the second elastic member stretches and pushes the pen cap upward; with the above structure, by abutting the lower end of the pen cap against the pen cap support seat, and then arranging the second elastic member between the pen cap support seat and the elastic member support seat, when the pen cap is engaged, the second elastic member is compressed by the pen cap support seat and the pen cap, and at this time the pen cap cannot be pulled out with the pen barrel, and only the pen barrel can be pulled out for use; and when the pressing member drives the first opening and closing arm and the second opening and closing arm to separate, the engagement with the pen cap is released, and the second elastic member will stretch without external compression, thereby driving the pen cap to move upward, making it more convenient to separate the pen cap from the base.

[0032] As attached Figure 2-9 As shown, the first opening and closing arm 3 and the second opening and closing arm 4 described in the present application are both provided with a slide groove 10 extending in the up and down directions, and the pen cap support seat 8 is provided with a laterally extending slide rod 801, and the slide rod 801 is slidably fitted in the slide groove 10; specifically, a pair of slide rods are symmetrically provided on the left and right sides of the pen cap support seat, so as to slide and fit respectively with the slide grooves on the corresponding sides. With this structure, when the pen cap support seat follows the second elastic member to move up and down, it can maintain smooth sliding and accurate reset.

[0033] As attached Figure 2 、 4 -8, the first opening and closing arm 3 and the second opening and closing arm 4 described in the present application are both provided with relatively extended extension walls 11, and the said extension walls 11 are used to be inserted into the gap between the pen clip of the pen cap 2 and the pen cap body; that is, the pen clip is provided on the outer wall of the pen cap body, and there is a gap between the pen clip and the body, and the extension wall is snapped into the gap to realize the snap-fit fixation of the pen cap; with this structure, when the two opening and closing arms are gathered together, the extension wall can be inserted into the gap between the pen clip and the pen cap body to realize the snap-fit fixation of the pen cap.

[0034] As attached Figure 2-8 As shown, the first opening and closing arm 3 and the second opening and closing arm 4 described in the present application are both provided with a rotating hole 12, and a rotating shaft 13 is provided in the rotating hole 12, and the rotating shaft 13 is fixedly connected to the inner wall of the base 1; with this structure, the first opening and closing arm and the second opening and closing arm are rotatably connected to each other through the rotating hole through the same rotating shaft, forming a structure similar to scissors, so that the two opening and closing arms are separated under the action of the pressing member, thereby separating the pen cap from it; and under the elastic pushing force of the first elastic member, the two opening and closing arms can be gathered together, and the pen cap can be clamped and fixed again.

[0035] As attached Figure 2-8 As shown, a bearing 14 is provided in the rotating hole 12 described in the present application, and the inner ring of the bearing 14 is tightly fitted with the rotating shaft 13 (tight fit or interference fit, and the outer ring of the bearing is tightly fitted with the inner wall of the rotating hole); the specific bearing can be a rolling bearing, and the structure of the rolling bearing includes an inner ring, an outer ring, and a rolling body and a retaining frame located between the inner and outer rings; with this structure, the rotation of the bearing is smoother, and even under the action of a small driving force, the separation of the two opening and closing arms can be achieved, which is more convenient to drive.

[0036] As attached Figure 7-8 As shown, the pressing member 6 described in the present application includes a button 601 protruding from the outer wall of the base 1, and side wings 602 are provided on both sides of the button 601. The side wings 602 are connected to a button support column 603 (a socket is provided on the inner wall of the base corresponding to the side of the button support column. The button support column can slide back and forth along the socket during the pressing process, and one end of the third elastic member fitted thereon abuts against the outer wall of the socket, thereby being compressed). The button support column 603 is provided with a third elastic member 15, and the interior of the button 601 is connected to a separation The separating body 604 is inserted into the space between the first opening and closing arm 3 and the second opening and closing arm 4 at the lower part so that the two opening and closing arms are separated from each other. Specifically, the pressing portion of the button protrudes from the base to facilitate pressing, and the side wings on the left and right sides abut against the inner wall of the base, and the button support columns connected to the side wings can be fixedly connected to the side wings by glue or other means, so that the side wings are pressed and the support columns are driven to move forward and backward during operation. One end of the separating body is also fixedly connected to the button, thereby driving the separating body to separate the closing arm. Specifically, refer to the attached Figure 7-8A guide rod is provided at the front end of the separation body, and the guide rod matches the gap formed by the first opening and closing arm and the second opening and closing arm at the lower part. The guide rod is first inserted into the gap, and then gradually separates the two opening and closing arms to both sides; with this structure, when it is necessary to pull out the pen cap together, the button is pressed, and the third elastic members on both wings of the button are compressed along the button support column, and at the same time, the separation body is also driven to be inserted into the space between the two lower opening and closing arms, so that the first opening and closing arms and the second opening and closing arms at the lower part are separated from each other, and the upper opening and closing arms are separated from each other, and the pen cap is disengaged and pulled out; after releasing the button, the third elastic member elastically stretches and resets, and the separation body extends out from the space between the two lower opening and closing arms. Under the elastic stretching force of the first elastic member, the first opening and closing arms and the second opening and closing arms at the upper part are pushed together and the pen cap can be clamped and fixed again.

[0037] As attached Figure 4 As shown in Figures 7-8, the plug-in ends of the first opening and closing arm 3 and the second opening and closing arm 4 at the lower part of the present application have a tapered surface 16, and the corresponding separating body 604 is provided with a tapered portion 605. With this structure, the two opening and closing arms can be gradually separated under the guidance of the tapered surface after the separating body is pressed, and the separation is smoother.

[0038] As attached Figure 5 , as shown in Figures 7-9, the base 1 described in the present application includes a first base 101 and a second base 102, and the first base 101 and the second base 102 both have a vertically extending coupling surface, and the first base 101 and the second base 102 are mutually clamped and connected at the coupling surface; that is, the first base and the second base are a left-right separated setting structure, rather than a top-down separation. This structure facilitates the assembly and separation of the base, and also facilitates the assembly and disassembly of various components of the inner wall.

[0039] As attached Figure 5 As shown in Figures 7-9, after the first base 101 and the second base 102 described in the present application are snapped together, an opening 104 is formed at the upper end surface thereof, and a top cover 17 is snapped into the opening 104, and the plug-in hole 103 is located on the top cover 17; with this structure, the top cover can be set separately, which is convenient for disassembly and assembly between the top cover and the base.

[0040] As attached Figure 5As shown in Figures 7-9, after the first base 101 and the second base 102 described in the present application are snapped together, the opening 104 formed at the upper end surface thereof has a convex ring 105 extending inward, and a buckle 1701 is provided on the side wall of the corresponding top cover 17, and the buckle 1701 abuts against the lower surface of the convex ring 105; there is a gap between the buckle and the top cover body, so that during the top cover assembly and pressing process, the buckle can be compressed and deformed to pass over the inner wall of the convex ring, and then pop out again to abut against the lower surface of the convex ring. With this structure, the top cover can be firmly snapped into the opening to achieve a stable connection with the base.

[0041] The first elastic member, the second elastic member and the third elastic member described in the present application can adopt a straight spring structure; the base and the top cover of the present application can adopt plastic parts, and the first base and the second base are provided with a snap-fit structure, such as a socket and a plug-in column, etc., which are connected to each other through plug-in buckles.

[0042] The specific working principle and process of the detachable desk pen mentioned above in the present application are as follows: first, the bearings are respectively assembled into the rotating holes of the corresponding opening and closing arms, and then the two opening and closing arms are sleeved on the rotating shaft, thereby forming two first opening and closing arms and a second opening and closing arm similar to a scissors structure; the first opening and closing arm and the second opening and closing arm are rotated to open, the elastic member support seat is set inside it, one end is connected to the inner wall of the base to achieve positioning, and the second elastic member is sleeved, and the pen cap support seat is sleeved on the upper part of the second elastic member, and the sliding rods on the left and right sides of the pen cap support seat are slidably matched in the sliding grooves on the opening and closing arms on the corresponding sides, and the first elastic member is connected between the inner wall of the base and the two opening and closing arms; then the two button support columns and the separation body are installed in the button and fixed with glue, etc., and then the two third elastic members are sleeved on the two button support columns, and then assembled in the base; finally, the top cover is clamped into the opening of the base, and the finished pen ( The pen body 18 and the pen cap 2 are inserted into the plug-in hole of the base, and the assembly of the finished desk pen is completed; based on the above connection relationship, when it is used as a desk pen, the first opening and closing arm and the second opening and closing arm are gathered together under the pushing force of the first elastic member to realize the clamping and fixing of the pen cap, and the pen cap will remain in the desk pen base. The pen body 18 can be pulled out and then inserted back into the pen cap after normal use; when the finished pen body and pen cap need to be taken out of the base as a whole, the button is pressed, and the button drives the two opening and closing arms to separate through the separation body (the upper and lower separation bodies are similar to scissors, which can achieve synchronous separation or gathering), thereby releasing the clamping of the pen cap. At this time, the second elastic member extends and pushes the pen cap upward, thereby taking the finished pen out of the base as a whole; releasing the button, the separation body retreats from between the two lower opening and closing arms under the action of the third elastic member, and the two opening and closing arms are gathered again under the pushing force of the first elastic member.

Claims

1. A detachable desk pen, characterized by: The invention comprises a base (1), wherein the base (1) is provided with a plug hole (103) for plugging a pen cap (2); a first opening and closing arm (3) and a second opening and closing arm (4) are provided in the base (1), wherein the first opening and closing arm (3) and the second opening and closing arm (4) are rotatably connected, and the first opening and closing arm (3) and the second opening and closing arm (4) are divided into an upper part and a lower part along a rotatable position, and an accommodating space is formed between the first opening and closing arm (3) and the second opening and closing arm (4) in the upper part, and the pen cap (2) is arranged in the accommodating space. A first elastic member (5) is provided between the upper first opening and closing arm (3) and the second opening and closing arm (4) and the inner wall of the base (1), and the first elastic member (5) drives the first opening and closing arm (3) and the second opening and closing arm (4) to close to clamp the pen cap (2); a space for inserting a pressing member (6) is provided between the lower first opening and closing arm (3) and the second opening and closing arm (4), and the pressing member (6) is used to drive the lower first opening and closing arm (3) and the second opening and closing arm (4) to separate from each other.

2. The detachable desk pen according to claim 1, characterized in that: An accommodating space is formed between the first opening and closing arm (3) and the second opening and closing arm (4) at the upper portion, in which an elastic member support seat (7) and a pen cap support seat (8) are also provided. A second elastic member (9) is provided between the elastic member support seat (7) and the pen cap support seat (8). One end of the second elastic member (9) is sleeved on the elastic member support seat (7), and the other end is sleeved on the pen cap support seat (8). One end of the elastic member support seat (7) is fixedly connected to the inner wall of the base (1), and the pen cap support seat (8) can move up and down following the second elastic member (9).

3. The detachable desk pen according to claim 2, characterized in that: The first opening and closing arm (3) and the second opening and closing arm (4) are provided with a sliding groove (10) extending in the vertical direction, and the pen cap support seat (8) is provided with a sliding rod (801) extending laterally, and the sliding rod (801) is slidably fitted in the sliding groove (10).

4. The detachable desk pen according to claim 2, wherein: The first opening and closing arm (3) and the second opening and closing arm (4) are provided with relatively extending extension walls (11), and the extension walls (11) are used to be inserted into the gap between the pen clip and the pen cap body of the pen cap (2).

5. The detachable desk pen according to claim 1, characterized in that: The first opening and closing arm (3) and the second opening and closing arm (4) are both provided with a rotation hole (12), a rotation shaft (13) is provided in the rotation hole (12), and the rotation shaft (13) is fixedly connected to the inner wall of the base (1).

6. The detachable desk pen according to claim 5, characterized in that: A bearing (14) is provided in the rotating hole (12), and the inner ring of the bearing (14) is tightly fitted with the rotating shaft (13).

7. The detachable desk pen according to claim 1, characterized in that: The pressing member (6) includes a button (601) protruding from the outer wall of the base (1), side wings (602) are provided on both sides of the button (601), the side wings (602) are connected to a button support column (603), a third elastic member (15) is sleeved on the button support column (603), and a separation body (604) is connected to the inside of the button (601), and the separation body (604) is inserted between the first opening and closing arm (3) and the second opening and closing arm (4) at the lower part to separate them from each other.

8. The detachable desk pen according to claim 7, characterized in that: The plug-in ends of the first opening and closing arm (3) and the second opening and closing arm (4) at the lower portion have a tapered surface (16), and the corresponding separating body (604) is provided with a tapered portion (605).

9. The detachable desk pen according to claim 1, characterized in that: The base (1) comprises a first base (101) and a second base (102), wherein the first base (101) and the second base (102) both have a vertically extending joint surface, and the first base (101) and the second base (102) are mutually snap-connected at the joint surface.

10. The detachable desk pen according to claim 9, characterized in that: After the first base (101) and the second base (102) are snap-fitted, an opening (104) is formed on the upper end surface thereof, a top cover (17) is snap-fitted into the opening (104), and the plug-in hole (103) is located on the top cover (17).

11. The detachable desk pen according to claim 10, characterized in that: After the first base (101) and the second base (102) are snap-fitted, an opening (104) formed at the upper end surface thereof extends inwardly with a convex ring (105), and a corresponding buckle (1701) is provided on the side wall of the top cover (17), and the buckle (1701) abuts against the lower surface of the convex ring (105).

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