Multi-refill press pen and multifunctional compass pen having the same

Abstract

The utility model relates to a multi-lead press pencil, the multi-lead press pencil is through setting up swing bar ring and swing bar, and the hollow pen body can make swing bar swing under the action of gravity relative to swing bar ring, and through swing bar and the containing groove in press block cooperation, realize the press block and press lead to limit, can shorten the length of press block in this way, effectively reduce the occupation of hollow pen body vertical space, thereby can install longer press lead, effectively increase the ink amount in press lead, prolong the use time of press lead, in addition, the utility model relates to a multifunctional compass pencil with the multi-lead press pencil, through ingenious structure design realizes the installation of protractor, vernier caliper, magnifying glass and other stationery or tools in the compass pencil, thereby makes the compass pencil integrate multi-lead press pencil, compass, ruler, protractor, vernier caliper, magnifying glass and other functions, satisfies different use demand, and is convenient for carrying and using personally.

Description

Technical Field

[0001] This utility model relates to the field of stationery, and in particular to a multi-refill press pen and a multifunctional compass pen having the multi-refill press pen. Background Technology

[0002] In daily study or work, we use different types or colors of pens depending on our needs. For example, we use black pens for regular writing, pencils for drawing, and red pens for corrections or markings. To avoid the inconvenience of preparing or carrying multiple different types of pens, multi-refill push-button pens have emerged on the market. For instance, Chinese utility model patent CN218640600U discloses a multi-color push-button pen with replaceable refills. This pen can hold multiple refills of different colors, each with a push-button inserted at the top. External force drives the push-button downwards, moving the refill downwards, thus allowing a single pen to meet the user's different needs. However, the push-button in the aforementioned multi-color push-button pen is relatively long, approximately 30mm. Because the push-button occupies a significant amount of vertical space, the refill is relatively short, resulting in less ink storage and requiring frequent refill replacements.

[0003] In addition, during daily study or work, besides using different types or colors of pens, we also need to use different stationery or tools such as compasses, protractors, rulers, and magnifying glasses. Currently, most of these stationery or tools on the market are independent, which makes them inconvenient to store and carry around.

[0004] Therefore, this utility model provides a multi-refill press pen and a multifunctional compass pen having the multi-refill press pen to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-refill press pen and a multifunctional compass pen with the multi-refill press pen, which can solve the technical problem in the prior art that the press rod is too long and the refill is too short, thus requiring frequent refill replacement. It can also solve the technical problem in the prior art that compasses, protractors, rulers, magnifying glasses and other stationery or tools are independent items, which makes them inconvenient to store and carry around.

[0006] To address the aforementioned technical problems, this utility model provides a multi-refill pressable pen. The multi-refill pressable pen includes a hollow pen body, comprising a detachably connected upper hollow rod and a lower hollow rod. Several vertical through holes are formed on the side wall of the upper end of the upper hollow rod. A pressing block is slidably disposed in each of the vertical through holes. A first spring is installed inside the hollow pen body corresponding to the lower part of each pressing block. A pressing pen refill can be inserted into the interior of each first spring. When the pressing block moves downward against the elastic force of the first spring under the action of external force, it can simultaneously drive the corresponding pressing pen refill downward. The pen also includes a swing arm and a swing arm ring, the swing arm ring being disposed within the... Inside the upper end of the hollow rod, the swing arm is disposed in the swing arm ring. Tilting the hollow pen body allows the swing arm to swing relative to the swing arm ring under its own weight. Each pressing block has a receiving groove for accommodating the swing arm on the side facing the swing arm. When the pressing block is not subjected to external force, it is located above the corresponding vertical through hole under the elastic force of the corresponding first spring, and the swing arm cannot be inserted into the receiving groove of the pressing block. When the pressing block moves downward under the action of external force until the bottom surface of the receiving groove above it is lower than the bottom surface of the swing arm, tilting the hollow pen body allows the lower end of the swing arm to swing into the receiving groove of the pressing block.

[0007] Furthermore, the pressing block includes a pressing part and a driving part connected to each other. The pressing part extends to the outside of the upper hollow rod through a corresponding vertical through hole. The driving part is located inside the upper hollow rod, and the bottom end of the driving part is inserted into the inside of the top of the corresponding pressing pen tip or sleeved on the outside of the top of the corresponding pressing pen tip.

[0008] Furthermore, a spring positioning block is provided inside the upper hollow rod. The spring positioning block is located below the swing arm. The spring positioning block has several through holes for avoiding the pressing pen refill. The upper end of each first spring is limited by a corresponding pressing block, and the lower end is limited by the spring positioning block.

[0009] On the other hand, this utility model also provides a multifunctional compass pen with the multi-lead press pen described in any of the above claims. The multifunctional compass pen includes a connecting top seat and a first compass leg and a second compass leg that are rotatably connected to the connecting top seat. A positioning pin assembly is provided at the end of the first compass leg away from the connecting top seat. The second compass leg includes a connecting pen sleeve and the multi-lead press pen. The connecting pen sleeve is detachably connected to the multi-lead press pen. The end of the connecting pen sleeve away from the multi-lead press pen is rotatably connected to the connecting top seat. The side wall of the connecting pen sleeve is provided with a plurality of vertical through slots corresponding one-to-one with the press blocks, and each press block can extend through the corresponding vertical through slot.

[0010] Furthermore, the side of the first compass leg opposite to the second compass leg is set as a first plane, and the side of the second compass leg opposite to the first compass leg is set as a second plane, and the first plane and the second plane can fit together; a first length scale line is provided on the first plane, a second length scale line is provided on the second plane, and a third length scale line is provided on the side of the first compass leg away from the second compass leg; one side of the first compass leg is a first straight edge, and the other side is a wavy edge.

[0011] Furthermore, the lower end of the multi-pen refill press pen on the side opposite to the first compass leg is provided with a storage hole, and the positioning pin assembly includes a positioning pin. The positioning pin is set at an angle to the first compass leg, and the end of the positioning pin away from the connecting top seat is set towards the multi-pen refill press pen. The positioning pin can be inserted into the storage hole.

[0012] Furthermore, the multifunctional compass pen also includes a vernier caliper assembly, which includes a vernier scale. The vernier scale is movably mounted on the first compass leg. At least one first measuring jaw is provided at the end of the first compass leg near the connecting top seat. At least one second measuring jaw is provided at the end of the vernier scale near the connecting top seat. The number of second measuring jaws is the same as the number of first measuring jaws, and the second measuring jaws correspond one-to-one with the first measuring jaws. The vernier scale is provided with vernier graduation lines that correspond to the third length graduation line.

[0013] Furthermore, the positioning pin assembly also includes a mounting base, the positioning pin is disposed on the mounting base, the end of the first compass leg away from the connecting top seat is provided with a mounting groove, and the mounting base is detachably inserted into the mounting groove; the end of the vernier scale away from the connecting top seat is connected to a measuring pin, a fixing ring is provided on one side of the mounting base, and the end of the measuring pin away from the vernier scale is movably inserted through the fixing ring.

[0014] Furthermore, the multifunctional compass pen also includes a magnifying glass assembly, which includes a plug sleeve and a magnifying glass rotatably connected to the plug sleeve. The plug sleeve is detachably fitted onto the first measuring jaw and / or the second measuring jaw.

[0015] Furthermore, the multifunctional compass pen also includes a protractor, one surface of which is provided with angle scale lines; the protractor can be detachably connected to at least one of the connecting top seat, the first compass leg, or the second compass leg.

[0016] Furthermore, one side of the protractor is a first arc-shaped side, and the other side of the protractor is composed of a second arc-shaped side and a second straight side connected to each other. On the surface of the protractor where the angle scale line is provided, a fourth length scale line is provided near the second straight side.

[0017] Furthermore, the multifunctional compass pen also includes a threaded fastener and a nut. The threaded fastener passes through the connecting top seat, the first compass leg, and the second compass leg and is threadedly connected to the nut. The threaded fastener has a mounting hole in the middle. A second spring and a needle body are provided in the mounting hole. The needle body is located at the end of the mounting hole away from the nut. The needle body protrudes out of the threaded fastener under the action of the second spring.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) By setting up a swing arm ring and a swing arm, the tilted hollow pen body can make the swing arm swing relative to the swing arm ring under its own weight. The swing arm cooperates with the receiving groove in the pressing block to limit the pressing block and the pressing pen refill. With this setting, the length of the pressing block only needs to be 5-9mm, which can effectively reduce the vertical space occupied by the hollow pen body, thereby allowing for the installation of a longer pressing pen refill, effectively increasing the amount of ink in the pressing pen refill and extending the service life of the pressing pen refill.

[0020] (2) Through ingenious structural design, stationery or tools such as protractors, vernier calipers, and magnifying glasses are installed in the compass pen, so that the compass pen integrates the functions of multi-core press pen, compass, ruler, protractor, vernier caliper, and magnifying glass into one, meeting different usage needs and making it easy to carry and use. Attached Figure Description

[0021] Figure 1The diagram below shows the structure of the multi-refill press pen in Example 1. (a) is a front view of the multi-refill press pen, (b) is a cross-sectional view of the multi-refill press pen when one of the press pen refills is pressed to the outside of the hollow pen body, (c) is an enlarged view of point A in (b), and (d) is a cross-sectional view of all the press pen refills retracted into the hollow pen body.

[0022] Figure 2 The following is a schematic diagram of the structure of a multi-refill press pen in Example 1, wherein (a) is a schematic diagram of the upper end of the multi-refill press pen, (b) is a schematic diagram of the structure of the lever, lever ring, pressing block, first spring and pressing pen refill when the pressing pen refill is pressed to the outside of the hollow pen body, (c) is an enlarged schematic diagram of point B in (b), and (d) is a schematic diagram of the pressing block.

[0023] Figure 3 This is a schematic diagram of the structure of the multi-functional compass pen in Example 2 when the positioning needle is inserted into the storage hole, where (a) is a schematic diagram of the structure of the multi-functional compass pen at the first angle, (b) is a schematic diagram of the structure of the multi-functional compass pen at the second angle, and (c) is a schematic diagram of the structure of the multi-functional compass pen at the third angle.

[0024] Figure 4 This is a schematic diagram of the structure of the multifunctional compass pen in Example 2 when the positioning needle is inserted into the storage hole and the vernier scale is in use. (a) is a schematic diagram of the structure of the multifunctional compass pen at the first angle, and (b) is a schematic diagram of the structure of the multifunctional compass pen at the second angle.

[0025] Figure 5 This is an exploded structural diagram of the multifunctional compass pen in Example 2.

[0026] Figure 6 This is a schematic diagram of the structure of the multifunctional compass pen in Example 3 when the first compass leg and the second compass leg are open, where (a) is a schematic diagram of the structure of the multifunctional compass pen at the first angle and (b) is a schematic diagram of the structure of the multifunctional compass pen at the second angle.

[0027] Figure 7 This is a schematic diagram of the structure of the multifunctional compass pen in Example 3 when the positioning needle is inserted into the storage hole, where (a) is a schematic diagram of the structure of the multifunctional compass pen at the first angle, and (b) is a schematic diagram of the structure of the multifunctional compass pen at the second angle.

[0028] Figure 8 This is a partial structural diagram of the multifunctional compass pen in Example 3.

[0029] Figure 9 This is an exploded structural diagram of the multifunctional compass pen in Example 3.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Multi-refill retractable pen; 10-Refillable pen refill; 11-Upper hollow rod; 12-Lower hollow rod; 13-Vertical through hole; 14-Pressing block; 140-Receiving groove; 141-Pressing part; 142-Drive part; 143-Plug-in rod; 15-Swing rod; 16-Swing rod ring; 17-First spring; 18-Spring positioning block; 181-Through hole; 182-Snap-fit ​​protrusion ring; 19-Storage hole; 102-First plug-in hole; 20-Connecting top seat; 201-Plug-in groove; 21-First compass leg; 211-First plane; 212-First length scale line; 213-First straight edge; 214-Wave edge; 215-Third length scale line; 216-Mounting groove; 22-Second compass leg; 221-Second plane; 223-Second length Scale line; 23-Positioning pin assembly; 231-Mounting base; 232-Positioning pin; 24-Connecting pen sleeve; 241-Vertical through slot; 242-Second insertion hole; 3-Protractor; 30-Angle scale line; 31-First arc-shaped edge; 32-Second arc-shaped edge; 33-Second straight edge; 34-Fourth length scale line; 35-Definition formula of right-angle trigonometric functions; 36-First insertion post; 37-Second insertion post; 41-Threaded fastener; 411-Mounting hole; 42-Nut; 43-Second spring; 44-Pin body; 5-Vernier caliper assembly; 51-Vernier scale; 52-First measuring jaw; 53-Second measuring jaw; 54-Vernier scale line; 6-Magnifying glass assembly; 61-Insertion sleeve; 62-Magnifying glass; 7-Pen clip; 8-Eraser. Detailed Implementation

[0032] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0033] Example 1

[0034] like Figures 1 to 2As shown, this embodiment discloses a multi-refill pressable pen. The multi-refill pressable pen includes a hollow pen body, which includes an upper hollow rod 11 and a lower hollow rod 12 that are detachably connected. Several vertical through holes 13 are formed on the side wall of the upper end of the upper hollow rod 11. A pressing block 14 is slidably disposed in each vertical through hole 13. A first spring 17 is installed inside the hollow pen body below each pressing block 14. A pressing pen refill 10 can be inserted into the interior of each first spring 17. When the pressing block 14 moves downward against the elastic force of the first spring 17 under the action of external force, it can drive the corresponding pressing pen. The core 10 moves downwards; it also includes a swing arm 15 and a swing arm ring 16. The swing arm ring 16 is disposed inside the upper end of the upper hollow rod 11, and the swing arm 15 is disposed in the swing arm ring 16. Tilting the hollow pen body allows the swing arm 15 to swing relative to the swing arm ring 16 under its own weight. Each pressing block 14 has a receiving groove 140 on the side facing the swing arm 15 for accommodating the swing arm 15. Specifically, the pressing pen core 10 can be any one of pressing mechanical pencil cores, pressing fountain pen cores, pressing ballpoint pen cores, pressing oil-based pen cores, pressing water-based pen cores, and pressing gel pen cores. In actual use, such as Figure 1 As shown in (d), when the pressing block 14 is not subjected to external force (i.e., is not pressed), the pressing block 14 is located above the corresponding vertical through hole 13 under the elastic force of the corresponding first spring 17. At this time, the bottom surface of the receiving groove 140 in the pressing block 14 is higher than the bottom surface of the swing rod 15, so the swing rod 15 cannot be inserted into the receiving groove 140 of the pressing block 14. When one of the pen refills 10 needs to be pressed, the corresponding pressing block 14 is pressed down. Under the action of external force, the pressing block 14 overcomes the elastic force of the first spring 17 and moves downward along the vertical through hole 13 until the bottom surface of the receiving groove 140 on the pressing block 14 is reached. When the pen body is below the bottom surface of the lever 15, the hollow pen body tilts. Specifically, the hollow pen body tilts relative to the plumb line towards the pressed pen tip 10, causing the lower end of the lever 15 to swing towards the pen tip 10 under its own weight and enter the receiving groove 140 of the corresponding pressing block 14. At this time, the user releases the pressing block 14, and the pressing block 14 moves upward under the elastic force of the first spring 17 until the bottom surface of the receiving groove 140 abuts against the bottom surface of the lever 15, thereby limiting the pressing block 14 and the pen tip 10, keeping the pen tip 10 in the position extending outside the hollow pen body. Figure 1As shown in (b); when it is necessary to retract the retractable pen tip 10 extending outside the hollow pen body into the hollow pen body, the corresponding pressing block 14 is pressed down. The pressing block 14 moves downward, causing the bottom surface of the receiving groove 140 to disengage from the bottom surface of the swing arm 15. At this time, the hollow pen body is tilted, specifically, the hollow pen body tilts away from the pressing pen tip 10 relative to the plumb line. This causes the lower end of the swing arm 15 to swing away from the pressing pen tip 10 under its own weight and leave the receiving groove 140 of the corresponding pressing block 14. At this time, the pressing block 14 is released. Since the limiting effect of the swing arm 15 is no longer present, the pressing block 14 and the pressing pen tip 10 move upward along the vertical through hole 13 under the elastic force of the first spring 17. The pressing pen tip 10 retracts into the interior of the hollow pen body, as shown in (b). Figure 1 As shown in (d) in the figure.

[0035] In this embodiment, by setting the swing arm ring 16 and the swing arm 15, the tilted hollow pen body allows the swing arm 15 to swing relative to the swing arm ring 16 under its own weight. The swing arm 15 cooperates with the receiving groove 140 in the pressing block 14 to limit the pressing block 14 and the pressing pen refill 10. With this setting, the length of the pressing block 14 in this embodiment is only 5-9mm, which can effectively reduce the vertical space occupied compared to the 30mm pressing rod in the prior art. As a result, in the same length of hollow pen body, this embodiment can install a longer pressing pen refill, thereby storing more ink in the pressing pen refill and extending the usage time of the pressing pen refill.

[0036] Furthermore, such as Figure 1 As shown in (c), the pressing block 14 includes a pressing part 141 and a driving part 142 connected to each other. The pressing part 141 extends to the outside of the upper hollow rod 11 through a corresponding vertical through hole 13. The driving part 142 is located inside the upper hollow rod 11, and the bottom end of the driving part 142 is inserted into the inside of the top end of the corresponding pressing pen refill 10 or sleeved on the outside of the top end of the corresponding pressing pen refill 10. Preferably, a connecting rod 143 is provided at the bottom of the driving part 142. The connecting rod 143 is inserted into the inside of the top end of the pressing pen refill 10. By connecting the connecting rod 143 to the pressing pen refill 10, the pressing pen refill 10 moves up and down synchronously with the pressing block 14. The pressing part 141, the driving part 142, and the connecting rod 143 are integrally formed. In this embodiment, by providing a pressing part 141 extending to the outside of the upper hollow rod 11, it is convenient for the user to apply force to the pressing block 14.

[0037] Furthermore, such as Figure 1 (c) and Figure 9As shown, a spring positioning block 18 is provided inside the upper hollow rod 11. The spring positioning block 18 is located below the swing arm 15. The spring positioning block 18 has several through holes 181 for avoiding the press pen refill 10. The upper end of each first spring 17 is limited by a corresponding press block 14, and the lower end is limited by the spring positioning block 18. Specifically, a snap-fit ​​protrusion 182 is provided on the outer periphery of the spring positioning block 18, and a snap-fit ​​groove is provided on the inner wall of the upper hollow rod 11. The snap-fit ​​protrusion 182 cooperates with the snap-fit ​​groove to snap the spring positioning block 18 into the interior of the upper hollow rod 11. In this embodiment, the lower end of the first spring 17 is limited by the spring positioning block 18.

[0038] Example 2

[0039] like Figure 3-5 As shown, this embodiment provides a multi-functional compass pen with the multi-lead press pen as described in any one of Embodiment 1. The multi-functional compass pen includes a connecting top seat 20 and a first compass leg 21 and a second compass leg 22 rotatably connected to the connecting top seat 20. A positioning pin assembly 23 is provided at the end of the first compass leg 21 away from the connecting top seat 20. The second compass leg 22 includes a connecting pen sleeve 24 and the multi-lead press pen 1. The connecting pen sleeve 24 is detachably connected to the multi-lead press pen 1, and the end of the connecting pen sleeve 24 away from the multi-lead press pen 1 is rotatably connected to the connecting top seat 20. The side wall of the connecting pen sleeve 24 is provided with a plurality of vertical through slots 241 corresponding one-to-one with the press blocks 14, and each press block 14 can extend through the corresponding vertical through slot 241. Specifically, the part of the multi-refill press pen 1 that is inserted into the connecting pen sleeve 24 is the insertion part. The outer wall of the insertion part is provided with several locking grooves, and the inner wall of the connecting pen sleeve 24 is provided with locking blocks that cooperate with the locking grooves.

[0040] In practical use, when drawing circles or arcs, the multi-lead press pen 1 is inserted into the connecting pen sleeve 24 to achieve the function of a compass. Furthermore, by providing several vertical through slots 241 on the side wall of the connecting pen sleeve 24, corresponding one-to-one with the pressing blocks 14, the pressing blocks 14 extend through the corresponding vertical through slots 241, making it easy for the user to apply force to the pressing blocks 14 even when the multi-lead press pen 1 is inserted into the connecting pen sleeve 24. When writing, the multi-lead press pen 1 can be removed from the connecting pen sleeve 24 for individual use, thus achieving the function of a multi-lead press pen. In this embodiment, the multi-functional compass pen cleverly combines the multi-lead press pen 1 with the compass by setting the second compass leg 22 as a detachable connection between the connecting pen sleeve 24 and the multi-lead press pen 1. This not only expands the compass's function but also facilitates storage and portability.

[0041] Furthermore, the side of the first compass leg 21 opposite to the second compass leg 22 is set as a first plane 211, and the side of the second compass leg 22 opposite to the first compass leg 21 is set as a second plane 221. The first plane 211 and the second plane 221 can fit together. A first length scale line 212 is provided on the first plane 211, a second length scale line 223 is provided on the second plane 221, and a third length scale line 215 is provided on the side of the first compass leg 21 away from the second compass leg 22. One side of the first compass leg 21 is a first straight edge 213, and the other side is a wavy edge 214. Specifically, the outer diameter of the insertion part of the multi-refill press pen 1 is smaller than the outer diameter of the rest of the upper hollow rod 11, and the outer diameter of the connecting pen sleeve 24 is the same as the outer diameter of the rest of the upper hollow rod 11. A portion of the second plane 221 and the second length scale line 223 are disposed on the connecting pen sleeve 24, while the other portion is disposed on the multi-refill press pen 1. This allows the multi-refill press pen 1 to be inserted into the connecting pen sleeve 24, forming a complete second plane 221 and a complete second length scale line 223. In this embodiment, by setting length scale lines on the first plane 211 and the second plane 221, the first compass leg 21 and the second compass leg 22 can be used as rulers. Furthermore, by setting one side of the first compass leg 21 as a wavy edge 214, the first compass leg 21 can also be used as a wavy ruler, further expanding the functionality of this multi-functional compass pen.

[0042] Furthermore, the lower end of the multi-pen refill press pen 1 on the side opposite to the first compass leg 21 is provided with a storage hole 19. The positioning pin assembly 23 includes a positioning pin 232, which is set at an angle to the first compass leg 21, and the end of the positioning pin 232 away from the connecting top seat 20 is set towards the multi-pen refill press pen 1. The positioning pin 232 can be inserted into the storage hole 19. Preferably, the side of the first compass leg 21 opposite to the first plane 211 is an arc-shaped surface, and the side of the second compass leg 22 opposite to the second plane 221 is also an arc-shaped surface. Thus, when the first plane 211 and the second plane 221 are fitted together, the first compass leg 21 and the second compass leg 22 combine to form a cylinder, allowing the entire multi-functional compass pen to be used as a pen. Furthermore, the positioning pin 232 is inserted into the storage hole 19 to prevent the first compass leg 21 and the second compass leg 22 from separating during use as a pen and to prevent the positioning pin 232 from injuring the user, ensuring safety. Additionally, for easy positioning... The needle 232 is inserted into the storage hole 19. Three locking grooves are provided on the outer wall of the insertion part. When the multi-function compass pen needs to be converted from compass mode to pen mode, first insert a small portion of the insertion part of the multi-lead press pen 1 into the connecting pen sleeve 24, and rotate the first compass leg 21 and the second compass leg 22 so that the first plane 211 and the second plane 221 are in contact with each other. The end of the positioning needle 232 will then be inserted into the storage hole 19. Next, the multi-lead press pen 1 is continued to be pushed towards the connecting pen sleeve 24 until it cannot be pushed further. At this time, a portion of the insertion part is located outside the connecting pen sleeve 24, that is, part of the locking groove in the insertion part engages with the locking block, thus converting it into pen mode. Figure 3 As shown; when the multi-function compass pen needs to be converted from pen mode to compass mode, pull the multi-lead press pen 1 out of the connecting pen sleeve 24. At this time, the positioning pin 232 leaves the storage hole 19. Rotate the first compass leg 21 and the second compass leg 22 to separate the first plane 111 and the second plane 121 from each other. Insert the plug part of the multi-lead press pen 1 completely into the connecting pen sleeve 24, and it can be converted into compass mode.

[0043] Furthermore, such as Figure 3 and 4As shown, the multifunctional compass pen also includes a vernier caliper assembly 5, which includes a vernier scale 51. The vernier scale 51 is movably fitted onto the first compass leg 21. At least one first measuring jaw 52 is provided at the end of the first compass leg 21 near the connecting top seat 20. At least one second measuring jaw 53 is provided at the end of the vernier scale 51 near the connecting top seat 20. The number of second measuring jaws 53 is the same as the number of first measuring jaws 52, and the second measuring jaws 53 correspond one-to-one with the first measuring jaws 52. The vernier scale 51 is provided with vernier scale lines 54 that cooperate with the third length scale line 215. Specifically, a through hole is provided in the middle of the vernier scale 51 to facilitate the user reading the measurement value of the third length scale line 215. In this embodiment, the vernier caliper 51 is cleverly fitted onto the first compass leg 21, and a first measuring jaw 52 is provided at one end of the first compass leg 21. A second measuring jaw 53 is provided at one end of the vernier caliper 51, and a vernier scale line 54 is provided on the vernier caliper 51 to cooperate with the third length scale line 215 on the first compass leg 21. Thus, the multifunctional compass pen can also function as a vernier caliper. By carrying the multifunctional compass pen of this embodiment, the user can achieve the functions of a compass, a multi-lead press pen, a ruler, and a vernier caliper. It is versatile, easy to store, and convenient to carry.

[0044] Furthermore, such as Figure 3-5 As shown, the first compass leg 21 has two first measuring jaws 52 near the connecting top seat 20, which are a first outer measuring jaw and a first inner measuring jaw, respectively. The vernier scale 51 has two second measuring jaws 53 near the connecting top seat 20, which are a second outer measuring jaw and a second inner measuring jaw, respectively. The first outer measuring jaw and the second outer outer measuring jaw cooperate with each other, and the first inner measuring jaw and the second inner inner measuring jaw cooperate with each other. Fastening screws 55 and driving blocks 54 are respectively provided on both sides of the vernier scale 51. In this embodiment, by providing two first measuring jaws and two second measuring jaws, it is convenient to measure the external and internal dimensions of an object.

[0045] Furthermore, such as Figure 4-5As shown, the positioning pin assembly 23 also includes a mounting base 231, the positioning pin 232 is disposed on the mounting base 231, the end of the first compass leg 21 away from the connecting top seat 20 is provided with a mounting groove 216, and the mounting base 231 is detachably inserted into the mounting groove 216; the vernier scale 51 is connected to a measuring pin 56 at the end away from the connecting top seat 20, a fixing ring 233 is provided on one side of the mounting base 231, and the end of the measuring pin 56 away from the vernier scale 51 is movably inserted through the fixing ring 233. In this embodiment, by providing a measuring needle 56, the vernier caliper assembly 5 can also measure the depth of an object; and by providing a fixing ring 233 in the positioning needle assembly 23, the end of the measuring needle 56 away from the vernier scale 51 is movably inserted into the fixing ring 233, and the fixing ring 233 limits the measuring needle 56 to prevent it from deviating during the measurement process, thus ensuring the accuracy of the measurement; in addition, since the measuring needle 56 needs to be inserted into the hole of the object when measuring depth, when the size of the hole is small, the positioning... The needle 232 may obstruct the measuring needle 56 from entering the hole. Since the mounting base 231 is detachably inserted into the mounting groove 216, the positioning needle assembly 23 can be removed and inserted into the mounting groove 216 in reverse. At this time, the end of the positioning needle 232 facing the multi-pen refill press pen 1 is located at the upper part of the mounting groove 216, that is, the positioning needle 232 will not extend to the bottom of the first compass leg 21. Thus, the measuring needle 56 can still be inserted into the fixing ring 233 to ensure the direction of movement, and the positioning needle 232 does not obstruct the measuring needle 56 from entering the hole.

[0046] Furthermore, such as Figure 3 and 5 As shown, the multi-functional compass pen also includes a magnifying glass assembly 6. The magnifying glass assembly 6 includes a connector sleeve 61 and a magnifying glass 62 rotatably connected to the connector sleeve 61. The connector sleeve 61 is detachably fitted onto the first measuring jaw 52 and / or the second measuring jaw 53. Specifically, the connector sleeve 61 is detachably fitted onto the first outer measuring jaw and the second outer measuring jaw. This arrangement makes the multi-functional compass pen more compact when stored, and by fitting the connector sleeve 61 of the magnifying glass assembly 6 onto the first outer measuring jaw and the second outer measuring jaw, it prevents the vernier caliper 51 from sliding on the first compass leg 21 during transport, reducing the probability of damage to the vernier caliper assembly 5. In this embodiment, the function of the multi-functional compass is further expanded by setting the magnifying glass assembly 9, which makes it easier for users to magnify and observe objects; and by setting a rotating connection between the magnifying glass 62 and the plug sleeve 61, the magnifying glass 62 can be folded above the plug sleeve 61 when stored, which helps to reduce the overall size of the multi-functional compass pen, making it easier to store and carry.

[0047] Furthermore, such as Figure 3-5As shown, the multifunctional compass pen also includes a protractor 3, one surface of which is provided with angle scale lines 30; the protractor 3 can be detachably connected to at least one of the connecting top seat 20, the first compass leg 21, or the second compass leg 22. In this embodiment, by providing the protractor 3, the functions of angle measurement and angle drawing can be easily realized, further expanding the functionality of the multifunctional compass pen.

[0048] Furthermore, such as Figure 5 As shown, one side of the protractor 3 is a first arc-shaped side 31, and the other side of the protractor 3 is composed of a second arc-shaped side 32 and a second straight side 33 connected to each other. On the surface of the protractor 3 where the angle scale lines 30 are provided, a fourth length scale line 34 is provided near the second straight side 33. Furthermore, the other surface of the protractor 3 is provided with the definition formula 35 of right-angle trigonometric functions. In this embodiment, by providing the second straight side 33 and the fourth length scale line 34, the protractor 3 can also be used as a ruler.

[0049] Furthermore, such as Figure 3-5 As shown, the protractor 3 has at least two first insertion posts 36 spaced apart on one surface and at least two second insertion posts 37 spaced apart on the other surface. The second compass leg 22 has a first insertion hole 102 that mates with the first insertion posts 36 and a second insertion hole 242 that mates with the second insertion posts 37. In this embodiment, the protractor 3 and the multi-functional compass pen are detachably connected through the insertion posts and holes. When drawing a circle or arc of a specific radius, the first insertion post 36 is connected to the first insertion hole 102. Preferably, a third plane is provided on the second compass leg 22 at the position corresponding to the first insertion hole 102, so that when the first insertion post 36 is connected to the first insertion hole 102, the protractor 3 can fit against the third plane, ensuring stable installation of the protractor 3. When the protractor 3 needs to be stored, the second insertion post 37 is connected to the second insertion hole 242 on the second compass leg 22. Figure 3 and 4 As shown.

[0050] Furthermore, the multi-functional compass pen also includes a threaded fastener 41 and a nut 42. The threaded fastener 41 passes through the connecting top seat 20, the first compass leg 21, and the second compass leg 22 and is threadedly connected to the nut 42; as shown Figure 5As shown, a first rotating disk 225 is provided at the end of the pen cap 24 near the connecting top seat 20, and a second rotating disk 217 parallel to the first rotating disk 225 is provided at the end of the first compass support leg 21 near the connecting top seat 20. A first limiting post 226 is provided on the side of the first rotating disk 225 opposite to the second rotating disk 217, and a second limiting post 218 is provided on the side of the second rotating disk 217 opposite to the first rotating disk 225. The first rotating disk 225 and the second rotating disk 217 are parallel to each other. A limiting plate 25 is provided, and a limiting groove 251 is provided on the limiting plate 25. A placement groove is provided on the connecting top seat 20. During assembly, the first rotating plate 225, the second rotating plate 217, and the limiting plate 25 are first inserted into the placement groove together, and the first limiting post 226 and the second limiting post 218 are inserted into the limiting groove 251. Then, the threaded fastener 41 is passed through the connecting top seat 20, the first rotating plate 225, the limiting plate 25, the second rotating plate 217, and the connecting top seat 20 in sequence, and then connected to the nut 42. In this embodiment, the tightness between the first compass leg 21 and the second compass leg 22 is adjusted by adjusting the threaded fastener 41 and the nut 42.

[0051] Example 3

[0052] like Figure 6-9 As shown, this embodiment provides a multi-functional compass pen with the multi-lead press pen as described in any one of Embodiment 1. The multi-functional compass pen includes a connecting top seat 20, and a first compass leg 21 and a second compass leg 22 rotatably connected to the connecting top seat 20. A positioning pin assembly 23 is provided at the end of the first compass leg 21 away from the connecting top seat 20. The second compass leg 22 includes a connecting pen sleeve 24 and the multi-lead press pen 1. The connecting pen sleeve 24 is detachably connected to the multi-lead press pen 1, and the end of the connecting pen sleeve 24 away from the multi-lead press pen 1 is rotatably connected to the connecting top seat 20. The side wall of the connecting pen sleeve 24 is provided with a plurality of vertical through slots 241 corresponding one-to-one with the press blocks 14, and each press block 14 can extend through the corresponding vertical through slot 241. Specifically, the part of the multi-refill press pen 1 that is inserted into the connecting pen sleeve 24 is the insertion part. The outer wall of the insertion part is provided with several locking grooves, and the inner wall of the connecting pen sleeve 24 is provided with locking blocks that cooperate with the locking grooves.

[0053] In practical use, when drawing circles or arcs, the multi-lead press pen 1 is inserted into the connecting pen sleeve 24 to achieve the function of a compass. Furthermore, by providing several vertical through slots 241 on the side wall of the connecting pen sleeve 24, corresponding one-to-one with the pressing blocks 14, the pressing blocks 14 extend through the corresponding vertical through slots 241, making it easy for the user to apply force to the pressing blocks 14 even when the multi-lead press pen 1 is inserted into the connecting pen sleeve 24. When writing, the multi-lead press pen 1 can be removed from the connecting pen sleeve 24 for individual use, thus achieving the function of a multi-lead press pen. In this embodiment, the multi-functional compass pen cleverly combines the multi-lead press pen 1 with the compass by setting the second compass leg 22 as a detachable connection between the connecting pen sleeve 24 and the multi-lead press pen 1. This not only expands the compass's function but also facilitates storage and portability.

[0054] Furthermore, the side of the first compass leg 21 opposite to the second compass leg 22 is set as a first plane 211, and the side of the second compass leg 22 opposite to the first compass leg 21 is set as a second plane 221. The first plane 211 and the second plane 221 can fit together. A first length scale line 212 is provided on the first plane 211, a second length scale line 223 is provided on the second plane 221, and a third length scale line 215 is provided on the side of the first compass leg 21 away from the second compass leg 22. One side of the first compass leg 21 is a first straight edge 213, and the other side is a wavy edge 214. Specifically, the outer diameter of the insertion part of the multi-refill press pen 1 is smaller than the outer diameter of the rest of the upper hollow rod 11, and the outer diameter of the connecting pen sleeve 24 is the same as the outer diameter of the rest of the upper hollow rod 11. A portion of the second plane 221 and the second length scale line 223 are disposed on the connecting pen sleeve 24, while the other portion is disposed on the multi-refill press pen 1. This allows the multi-refill press pen 1 to be inserted into the connecting pen sleeve 24, forming a complete second plane 221 and a complete second length scale line 223. In this embodiment, by setting length scale lines on the first plane 211 and the second plane 221, the first compass leg 21 and the second compass leg 22 can be used as rulers. Furthermore, by setting one side of the first compass leg 21 as a wavy edge 214, the first compass leg 21 can also be used as a wavy ruler, further expanding the functionality of this multi-functional compass pen.

[0055] Furthermore, the lower end of the multi-pen refill press pen 1 opposite to the first compass leg 21 is provided with a storage hole 19. The positioning pin assembly 23 includes a mounting base 231 and a positioning pin 232 disposed on the mounting base 231. The positioning pin 232 is set at an angle to the first compass leg 21, and the end of the positioning pin 232 away from the connecting top seat 20 is set towards the multi-pen refill press pen 1. The positioning pin 232 can be inserted into the storage hole 19. The end of the first compass leg 21 away from the connecting top seat 20 is provided with a mounting groove 216, and the mounting base 231 is detachably inserted into the mounting groove 216. Preferably, the side of the first compass leg 21 opposite to the first plane 211 is an arc-shaped surface, and the side of the second compass leg 22 opposite to the second plane 221 is also an arc-shaped surface. Thus, when the first plane 211 and the second plane 221 are fitted together, the first compass leg 21 and the second compass leg 22 combine to form a cylinder, allowing the entire multi-functional compass pen to be used as a pen. Furthermore, the positioning pin 232 is inserted into the storage hole 19 to prevent the first compass leg 21 and the second compass leg 22 from separating during use as a pen and to prevent the positioning pin 232 from injuring the user, ensuring safety. Additionally, for easy positioning... The needle 232 is inserted into the storage hole 19. Three locking grooves are provided on the outer wall of the insertion part. When the multi-function compass pen needs to be converted from compass mode to pen mode, first insert a small portion of the insertion part of the multi-lead press pen 1 into the connecting pen sleeve 24, and rotate the first compass leg 21 and the second compass leg 22 so that the first plane 211 and the second plane 221 are in contact with each other. The end of the positioning needle 232 will then be inserted into the storage hole 19. Next, the multi-lead press pen 1 is continued to be pushed towards the connecting pen sleeve 24 until it cannot be pushed further. At this time, a portion of the insertion part is located outside the connecting pen sleeve 24, that is, part of the locking groove in the insertion part engages with the locking block, thus converting it into pen mode. Figure 7 As shown; when the multi-function compass pen needs to be converted from pen mode to compass mode, pull the multi-lead press pen 1 out of the connecting pen sleeve 24. At this time, the positioning pin 232 leaves the storage hole 19. Rotate the first compass leg 21 and the second compass leg 22 to separate the first plane 111 from the second plane 121. Fully insert the plug part of the multi-lead press pen 1 into the connecting pen sleeve 24, and it can be converted into compass mode, as shown. Figure 6 As shown.

[0056] Furthermore, such as Figure 6-7As shown in Figures 9 and 1, the multifunctional compass pen also includes a protractor 3, one surface of which is provided with angle scale lines 30. The protractor 3 can be detachably connected to at least one of the connecting top seat 20, the first compass leg 21, or the second compass leg 22. In this embodiment, by providing the protractor 3, the functions of angle measurement and angle drawing can be easily realized, further expanding the functionality of the multifunctional compass pen.

[0057] Furthermore, such as Figure 9 As shown, one side of the protractor 3 is a first arc-shaped side 31, and the other side of the protractor 3 is composed of a second arc-shaped side 32 and a second straight side 33 connected to each other. On the surface of the protractor 3 where the angle scale lines 30 are provided, a fourth length scale line 34 is provided near the second straight side 33. Furthermore, the other surface of the protractor 3 is provided with the definition formula 35 of right-angle trigonometric functions. In this embodiment, by providing the second straight side 33 and the fourth length scale line 34, the protractor 3 can also be used as a ruler.

[0058] Furthermore, such as Figure 9 As shown, one surface of the protractor 3 is provided with at least two first insertion posts 36 spaced apart, and the other surface is provided with at least two second insertion posts 37 spaced apart. The second compass leg 22 is provided with a first insertion hole 102 that mates with the first insertion posts 36, and a second insertion hole 242 that mates with the second insertion posts 37. In this embodiment, the protractor 3 and the multi-functional compass pen are detachably connected through the engagement of the insertion posts and insertion holes. When it is necessary to draw a circle or arc of a specific radius, the first insertion posts 36 are connected to the first insertion holes 102, as shown. Figure 6 As shown; preferably, a third plane is provided on the second compass leg 22 at the position corresponding to the first insertion hole 102, so that when the first insertion post 36 is connected to the first insertion hole 102, the protractor 3 can fit against the third plane, ensuring the stable installation of the protractor 3; when the protractor 3 needs to be stored, the second insertion post 37 can be connected to the second insertion hole 242 on the second compass leg 22, as shown. Figure 7 As shown.

[0059] Furthermore, the multifunctional compass pen also includes a threaded fastener 41 and a nut 42. The threaded fastener 41 passes through the connecting top seat 20, the first compass leg 21, and the second compass leg 22 and is threadedly connected to the nut 42. A mounting hole 411 is provided in the middle of the threaded fastener 41. A second spring 43 and a needle body 44 are disposed in the mounting hole 411. The needle body 44 is located at the end of the mounting hole 411 away from the nut 42, and protrudes beyond the threaded fastener 41 under the action of the second spring 43. Figure 9 As shown, a first rotating disk 225 is provided at the end of the pen cap 24 near the connecting top seat 20, and a second rotating disk 217 parallel to the first rotating disk 225 is provided at the end of the first compass support leg 21 near the connecting top seat 20. A first limiting post 226 is provided on the side of the first rotating disk 225 opposite to the second rotating disk 217, and a second limiting post 218 is provided on the side of the second rotating disk 217 opposite to the first rotating disk 225. The first rotating disk 225 and the second rotating disk 217 are parallel to each other. A limiting plate 25 is provided, and a limiting groove 251 is provided on the limiting plate 25. A placement groove is provided on the connecting top seat 20. During assembly, the first rotating plate 225, the second rotating plate 217, and the limiting plate 25 are first inserted into the placement groove together, and the first limiting post 226 and the second limiting post 218 are inserted into the limiting groove 251. Then, the threaded fastener 41 is passed through the connecting top seat 20, the first rotating plate 225, the limiting plate 25, the second rotating plate 217, and the connecting top seat 20 in sequence, and then connected to the nut 42. In this embodiment, on the one hand, the tightness between the first compass leg 21 and the second compass leg 22 is adjusted by adjusting the threaded fastener 41 and the nut 42; on the other hand, the second spring 43 and the needle body 44 are provided to facilitate alignment with the vertex position of the angle during the corner drawing process.

[0060] In practical use, when it is necessary to measure an angle, simply remove the protractor and measure the angle using the angle scale 30; when it is necessary to draw an angle of a specific size, first connect the first insertion post 36 of the protractor 3 to the first insertion hole 102 on the second compass leg 22, as shown below. Figure 6 As shown in (b), the surface with the angle scale line 30 is facing the user. The needle body 44 is then aligned with the vertex. The position of the first compass leg 21 is adjusted according to the angle. Next, the threaded fastener 41 and nut 42 are adjusted to lock the first compass leg 21 and the second compass leg 22 together. The two sides of the angle are drawn using a pen based on the first plane 211 and the second plane 221. Since the first plane 211 has a first length scale line 212 and the second plane 221 has a second length scale line 223, it is easy to draw two sides of a specific length based on the scale. Then, the multi-functional compass pen is removed, and the line segments between the vertex and the two sides are completed, thus completing the drawing of the angle of a specific size.

[0061] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. 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 multi-core pressable pen, comprising a hollow pen body, the hollow pen body comprising a detachably connected upper hollow rod (11) and a lower hollow rod (12); a plurality of vertical through holes (13) are provided on the side wall of the upper end of the upper hollow rod (11), and a pressing block (14) is slidably disposed in each of the vertical through holes (13); a first spring (17) is installed inside the hollow pen body corresponding to the lower part of each pressing block (14), and a pressing pen core (10) can be inserted into the interior of each first spring (17); the pressing block (14) moves downward against the elastic force of the first spring (17) under the action of external force, and at the same time, it can drive the corresponding pressing pen core (10) to move downward; characterized in that: It also includes a swing arm (15) and a swing arm ring (16). The swing arm ring (16) is disposed inside the upper end of the upper hollow rod (11), and the swing arm (15) is disposed in the swing arm ring (16). Tilting the hollow pen body allows the swing arm (15) to swing relative to the swing arm ring (16) under its own weight. Each pressing block (14) has a receiving groove (140) for accommodating the swing arm (15) on the side facing the swing arm (15). When the pressing block (14) is not subjected to When an external force is applied, the pressing block (14) is located above the corresponding vertical through hole (13) under the elastic force of the corresponding first spring (17). At this time, the swing rod (15) cannot be inserted into the receiving groove (140) of the pressing block (14). When the pressing block (14) moves downward under the action of the external force until the bottom surface of the receiving groove (140) above it is lower than the bottom surface of the swing rod (15), tilting the hollow pen body at this time can make the lower end of the swing rod (15) swing into the receiving groove (140) of the pressing block (14).

2. The multi-refill press pen according to claim 1, characterized in that: The pressing block (14) includes a pressing part (141) and a driving part (142) connected to each other. The pressing part (141) extends to the outside of the upper hollow rod (11) through a corresponding vertical through hole (13). The driving part (142) is located inside the upper hollow rod (11), and the bottom end of the driving part (142) is inserted into the inside of the top of the corresponding pressing pen tip (10) or sleeved on the outside of the top of the corresponding pressing pen tip (10).

3. The multi-refill press pen according to claim 1, characterized in that: The hollow rod (11) is provided with a spring positioning block (18) inside. The spring positioning block (18) has several through holes (181) for avoiding the press pen core (10). The upper end of each first spring (17) is limited by the corresponding pressing block (14), and the lower end is limited by the spring positioning block (18).

4. A multifunctional compass pen having a multi-lead pressable pen as described in any one of claims 1-3, the multifunctional compass pen comprising a connecting top seat (20), and a first compass leg (21) and a second compass leg (22) respectively rotatably connected to the connecting top seat (20); a positioning pin assembly (23) is provided at the end of the first compass leg (21) away from the connecting top seat (20); characterized in that: The second compass support leg (22) includes a connecting pen sleeve (24) and the multi-pen refill press pen (1). The connecting pen sleeve (24) is detachably connected to the multi-pen refill press pen (1). The end of the connecting pen sleeve (24) away from the multi-pen refill press pen (1) is rotatably connected to the connecting top seat (20). The side wall of the connecting pen sleeve (24) is provided with a plurality of vertical through slots (241) corresponding one-to-one with the press block (14), and each press block (14) can extend through the corresponding vertical through slot (241).

5. The multifunctional compass pen according to claim 4, characterized in that: The side of the first compass leg (21) opposite to the second compass leg (22) is set as a first plane (211), and the side of the second compass leg (22) opposite to the first compass leg (21) is set as a second plane (221). The first plane (211) and the second plane (221) can fit together. A first length scale line (212) is provided on the first plane (211), a second length scale line (223) is provided on the second plane (221), and a third length scale line (215) is provided on the side of the first compass leg (21) away from the second compass leg (22). One side of the first compass leg (21) is a first straight edge (213), and the other side is a wavy edge (214).

6. The multifunctional compass pen according to claim 5, characterized in that: The lower end of the multi-pen refill press pen (1) opposite to the first compass leg (21) is provided with a storage hole (19). The positioning pin assembly (23) includes a positioning pin (232). The positioning pin (232) is set at an angle to the first compass leg (21), and the end of the positioning pin (232) away from the connecting top seat (20) is set towards the multi-pen refill press pen (1). The positioning pin (232) can be inserted into the storage hole (19).

7. The multifunctional compass pen according to claim 6, characterized in that: The multifunctional compass pen also includes a vernier caliper assembly (5), which includes a vernier scale (51). The vernier scale (51) is movably mounted on the first compass leg (21). The first compass leg (21) has at least one first measuring jaw (52) near the connecting top seat (20). The vernier scale (51) has at least one second measuring jaw (53) near the connecting top seat (20). The number of second measuring jaws (53) is the same as the number of first measuring jaws (52), and the second measuring jaws (53) and the first measuring jaws (52) are in one-to-one correspondence. The vernier scale (51) is provided with vernier scale lines (54) that cooperate with the third length scale line (215).

8. The multifunctional compass pen according to claim 7, characterized in that: The positioning pin assembly (23) further includes a mounting base (231), the positioning pin (232) is disposed on the mounting base (231), the end of the first compass leg (21) away from the connecting top seat (20) is provided with a mounting groove (216), and the mounting base (231) is detachably inserted into the mounting groove (216); the vernier scale (51) is connected to a measuring pin (56) at the end away from the connecting top seat (20), a fixing ring (233) is provided on one side of the mounting base (231), and the end of the measuring pin (56) away from the vernier scale (51) is movably inserted into the fixing ring (233).

9. The multifunctional compass pen according to claim 7, characterized in that: The multi-functional compass pen also includes a magnifying glass assembly (6), which includes a plug sleeve (61) and a magnifying glass (62) rotatably connected to the plug sleeve (61). The plug sleeve (61) is detachably fitted onto the first measuring jaw (52) and / or the second measuring jaw (53).

10. The multifunctional compass pen according to claim 4, characterized in that: The multi-functional compass pen also includes a protractor (3), one surface of which is provided with angle scale lines (30); the protractor (3) can be detachably connected to at least one of the connecting top seat (20), the first compass leg (21) or the second compass leg (22).

11. The multifunctional compass pen according to claim 10, characterized in that: One side of the protractor (3) is a first arc-shaped side (31), and the other side of the protractor (3) is composed of a second arc-shaped side (32) and a second straight side (33) connected to each other. On the surface of the protractor (3) where the angle scale line (30) is provided, a fourth length scale line (34) is provided near the second straight side (33).

12. The multifunctional compass pen according to claim 4, characterized in that: The multi-functional compass pen also includes a threaded fastener (41) and a nut (42). The threaded fastener (41) passes through the connecting top seat (20), the first compass leg (21) and the second compass leg (22) and is threadedly connected to the nut (42). The threaded fastener (41) has a mounting hole (411) in the middle. A second spring (43) and a needle body (44) are provided in the mounting hole (411). The needle body (44) is located at the end of the mounting hole (411) away from the nut (42). The needle body (44) protrudes out of the threaded fastener (41) under the action of the second spring (43).

Images