screwdriver pen

Abstract

This invention relates to a screwdriver pen. Compared with the prior art, this invention removes the insertion part of the mounting connector from the slot of the screwdriver head, and uses the screwdriver mode of the screwdriver pen to tighten or loosen screws. In this invention, the pen lead is inserted into the through hole of the mounting connector from the end with the larger inner diameter hole. The end of the lead near the pen tip is restricted to the other end of the through hole with the smaller inner diameter hole, allowing only the pen tip to protrude from the other end of the through hole. Then, the insertion part of the mounting connector is inserted into the slot of the screwdriver head. The lead is limited in the limiting space formed by the slot and the through hole of the screwdriver head, allowing the pen tip to stably protrude from the other end of the through hole. The screwdriver pen switches from screwdriver mode to pen mode. At this time, the tightening and / or loosening of screws is recorded by holding the screwdriver head. It integrates the functions of a pen and a screwdriver into one tool, making it easy to carry and switch between screwdriver and pen modes, thus improving usability.

Description

Technical Field

[0001] This invention relates to the technical field of screwdrivers, and more particularly to a screwdriver pen. Background Technology

[0002] Currently, screwdrivers are a commonly used tool. However, when it is necessary to record the tightening and / or loosening of screws, staff need to carry a ballpoint pen to make the record, or they may forget to bring a pen, making it impossible to record, which is quite inconvenient. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the prior art and provide a screwdriver pen.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] According to the present invention, a screwdriver pen includes a screwdriver, a pen lead, and a mounting connector. The mounting connector has a through hole, and the inner diameter of one end of the through hole is larger than the inner diameter of the other end of the through hole. The pen lead includes a core rod and a pen tip located at one end of the core rod. One end of the core rod can be inserted through the through hole and confined inside the other end of the through hole, so that the pen tip protrudes from the other end of the through hole. An insertion portion is formed on the outer side wall of the mounting connector near the through hole end, which is adapted to be inserted into the inner side wall of the groove of the screwdriver head. The core rod is confined in the limiting space formed by the groove of the screwdriver head and the through hole.

[0006] Compared with existing technologies, this invention allows for the following: When tightening or loosening screws using a screwdriver, the connector of the mounting connector is pulled out of the slot on the screwdriver head. The screwdriver pen is then used in screwdriver mode to tighten or loosen the screw. When recording the tightening and / or loosening of screws using a pen, the pen tip is inserted into the through hole of the mounting connector from the end with the larger inner diameter hole. The end of the pen tip near the pen head is confined to the other end of the through hole with the smaller inner diameter hole, allowing only the pen head to protrude from the other end of the through hole. Then, the outer connector of the mounting connector is inserted into the slot on the screwdriver head. The pen tip is confined within the space formed by the slot and the through hole on the screwdriver head, allowing the pen head to stably protrude from the other end of the through hole. The screwdriver pen switches from screwdriver mode to pen mode. At this time, the tightening and / or loosening of screws can be recorded by holding the screwdriver head. This invention integrates the functions of a pen and a screwdriver into one tool, making it easy to carry and allowing for convenient switching between the two modes.

[0007] Preferably, the perforation includes a cylindrical hole at one end and a support hole at the other end; the diameter of the support hole gradually increases from the other end of the perforation toward the cylindrical hole, and a support block is formed on the core rod near the pen tip in the circumferential direction to abut against the support hole, so that the support block abuts against the support hole, and the pen tip is exposed at the other end of the perforation.

[0008] Compared with existing technologies, the support block and support hole of the present invention are adapted to be inserted into each other, which improves the stability of the screwdriver pen when writing in pen mode.

[0009] Preferably, a reinforcing sleeve is fitted around the core rod, one end of which abuts against the end plane of the support block away from the pen tip, and the other end of which abuts against the groove of the blade head.

[0010] Compared with the prior art, the present invention uses a reinforcing sleeve to abut against the blade groove of the blade head and the end plane of the support block away from the pen tip, without using the core rod for support. This can prevent the core rod from bending and deforming, adapt to core rods of various lengths, and further improve the stability of the pen tip when writing.

[0011] Preferably, a stabilizing block is formed on the core rod near the support block in the circumferential direction, and an elastic pad is formed inside the reinforcing sleeve in the circumferential direction, and the elastic pad elastically deforms to abut against the stabilizing block away from the outer side of the core rod.

[0012] Compared with the prior art, the reinforcing sleeve of the present invention uses the elastic deformation of the elastic pad to abut against the stabilizing block on the core rod near the support block, which can maintain the position of the reinforcing sleeve without hindering the reinforcing sleeve from being fitted onto the core rod.

[0013] Preferably, the handle of the screwdriver has a receiving groove that connects to the cutting head, and the receiving groove is used to receive a portion of the other end of the core rod, so that the core rod is limited in the limiting space formed by the receiving groove, the cutting groove and the through hole.

[0014] Preferably, the other end of the core rod can be supported in the receiving groove.

[0015] Preferably, the mounting connector is a metal part, and the cutting groove of the blade head and the insertion part are magnetically connected.

[0016] Preferably, the outer side wall of the mounting connector near the other end of the perforation is formed into a beveled extension on the circumferential direction, and the outer diameter of the beveled extension gradually increases from the other end of the perforation toward the cylindrical hole.

[0017] Preferably, the screwdriver pen further includes a ratchet mechanism and an adapter; the ratchet mechanism has a ratchet, and an adapter hole is formed at the central axis of the ratchet; one end of the adapter is inserted into the adapter hole, and the adapter hole is used to lock and restrict the rotation of one end of the adapter in the inserted state; the other end of the adapter is used to lock and connect the screwdriver, so that the ratchet mechanism connects the screwdriver through the insertion of the adapter and the adapter hole, thus forming a ratchet screwdriver.

[0018] Preferably, the ratchet mechanism is a one-way ratchet mechanism; the one-way ratchet mechanism further includes a steering block, a ratchet block, and an elastic body; the steering block has a limiting cavity for restricting the position of the ratchet, and the central axis of the ratchet coincides with the central axis of the limiting cavity, so that the ratchet can rotate in the limiting cavity; the steering block also has a movable cavity for accommodating the ratchet block, and the movable cavity communicates with the limiting cavity; the circumferential outer wall of the ratchet has a toothed portion with multiple external teeth, and the ratchet block has an arc segment that abuts against the external teeth of the toothed portion; the elastic body is disposed between the side wall of the movable cavity and the side of the ratchet block away from the ratchet; the ratchet block also has a pawl portion that engages with the external teeth of the toothed portion, so that the steering block transmits the applied circular motion through the elastic body. When the pawl is turned towards the arc segment by a steering force, the pawl locks the ratchet simultaneously. When the steering block transmits the steering force applied by the pawl towards the arc segment through an elastic body, the ratchet and the steering block rotate relative to each other. Both ends of the adapter hole pass through the steering block, so that one end of the adapter can be inserted into the adapter hole through either end of the adapter hole, and the adapter hole locks and restricts the rotation of the adapter. The other end of the adapter is used to lock and connect the screwdriver handle, and the central axis of the screwdriver coincides with the central axis of the ratchet. The screwdriver tip is used to connect to the screw, so that the adapter can tighten the screw by inserting one end into the adapter hole, and the adapter can loosen the screw by inserting the other end into the adapter hole. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the screwdriver of the present invention;

[0020] Figure 2 This is a cross-sectional view highlighting the first internal structure of the screwdriver according to the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the mounting connector of the present invention;

[0022] Figure 4 This is a cross-sectional view of the present invention to highlight the internal structure of the mounting connector;

[0023] Figure 5 This is a schematic diagram of the pen refill structure of the present invention;

[0024] Figure 6This is a cross-sectional schematic diagram of the reinforcing sleeve of the present invention;

[0025] Figure 7 This is a first schematic diagram of the ratchet screwdriver state according to the present invention;

[0026] Figure 8 This is a second schematic diagram showing the ratchet screwdriver in its current state according to the present invention;

[0027] Figure 9 This is a schematic diagram of the one-way ratchet mechanism of the present invention;

[0028] Figure 10 This is a schematic diagram of the ratchet of the present invention;

[0029] Figure 11 This is a schematic diagram of the steering block of the present invention;

[0030] Figure 12 This is a schematic diagram of the spike block of the present invention;

[0031] Figure 13 This is a schematic diagram of a modified embodiment of the unidirectional ratchet structure of the present invention;

[0032] Figure 14 This is a cross-sectional view highlighting the second type of internal structure of the screwdriver in this invention.

[0033] Reference numerals: 1. One-way ratchet mechanism; 101. Steering block; 10101. Steering groove; 10102. Steering cover plate; 102. Ratchet; 103. Ratchet block; 104. Elastic body; 2. Adapter; 3. Screwdriver; 301. Screwdriver head; 302. Screwdriver handle; 4. Limiting cavity; 5. Moving cavity; 6. Tooth; 7. Toothed part; 8. Pawl part; 9. Adapter hole; 10. Embedded groove; 11. Embedded block; 12. Limiting ring; 13. First convex arc surface; 14. 15. Second convex arc surface; 16. Restricting ring; 17. Mounting groove; 18. Embedded ring groove; 19. Annular groove; 10. Pen refill; 1901. Core rod; 1902. Pen tip; 20. Mounting connector; 2001. Insertion part; 2002. Beveled extension part; 21. Through hole; 2101. Cylindrical hole part; 2102. Support hole part; 22. Knife groove; 23. Receiving groove; 24. Reinforcing sleeve; 25. Support block; 26. Stabilizing block; 27. Elastic pad block; 29. ​​Circular arc segment. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0035] This specification provides an embodiment of a screwdriver pen, such as... Figure 1 , Figure 3 as well as Figure 5 As shown, the device includes a screwdriver 3, a pen refill 19, and a mounting connector 20. The mounting connector 20 has a through hole 21, and the inner diameter of one end of the through hole 21 is larger than the inner diameter of the other end of the through hole 21. The pen refill 19 includes a core rod 1901 and a pen tip 1902 located at one end of the core rod 1901. One end of the core rod 1901 can pass through one end of the through hole 21 and is confined inside the other end of the through hole 21, so that the pen tip 1902 protrudes from the other end of the through hole 21. Figure 2 , Figure 3 and Figure 5 As shown, the outer wall of the mounting connector 20 near the through hole 21 has an insertion part 2001 that is adapted to fit and insert into the inner wall of the groove 22 of the screwdriver head 301. The core rod 1901 is limited in the limiting space formed by the groove 22 of the screwdriver head 301 and the through hole 21. The groove 22 of the screwdriver head is in the shape of an internal hexagonal groove. Figure 3 and Figure 14 As shown, this is the limiting space formed by the groove 22 and the hole 21.

[0036] In one embodiment, such as Figure 2 , Figure 3 and Figure 5 As shown, the handle portion 302 of the screwdriver 3 has a receiving groove 23 that connects to the cutting groove 22 of the head 301, and the receiving groove 23 is used to receive the other end of the core rod 1901 so that the core rod 1901 is limited in the limiting space formed by the receiving groove 23, the cutting groove 22 and the through hole 21.

[0037] In one embodiment, such as Figure 3 , Figure 4 and Figure 5 As shown, the perforation 21 includes a cylindrical hole portion 2101 at one end and a support hole portion 2102 at the other end. The diameter of the support hole portion 2102 gradually increases from the other end of the perforation 21 toward the cylindrical hole portion 2101. A support block 25 is formed on the core rod 1901 near the pen tip 1902 in the circumferential direction to abut against the support hole portion 2102, so that the support block 25 abuts against the support hole portion 2102, and the pen tip 1902 protrudes at the other end of the perforation 21. The support block 25 may be conical.

[0038] In one embodiment, such as Figure 2 , Figure 5 and Figure 6 As shown, a reinforcing sleeve 24 is fitted around the core rod 1901. One end of the reinforcing sleeve 24 rests against the end plane of the support block 25 away from the pen tip 1902, and the other end of the reinforcing sleeve 24 rests against the end side wall of the blade groove 22 of the blade head 301 away from the pen tip 1902. The other end of the reinforcing sleeve 24 rests against the side wall of the receiving groove 23 within the blade groove 22.

[0039] In one embodiment, such as Figure 5 and Figure 6 As shown, a stabilizing block 26 is formed circumferentially on the core rod 1901 near the support block 25, and an elastic pad 27 is formed circumferentially inside the reinforcing sleeve 24. The elastic pad 27 elastically deforms and abuts against the stabilizing block 26 away from the outer side of the core rod 1901. The reinforcing sleeve 24 can fix the elastic pad 27 by adhesive, and the elastic pad 27 can be made of rubber.

[0040] In one embodiment, such as Figure 1 and Figure 3 As shown, the mounting connector 20 is a metal part, and the cutting groove 22 of the cutting head and the insertion part 2001 are magnetically connected.

[0041] In one embodiment, such as Figure 1 and Figure 3 As shown, the outer side wall of the mounting connector 20 near the other end of the through hole 21 is formed into a beveled extension 2002 around the periphery, and the outer diameter of the beveled extension 2002 gradually increases from the other end of the through hole 21 toward the cylindrical hole 2101.

[0042] In one embodiment, such as Figure 7 , Figure 8 As shown, the screwdriver pen also includes a ratchet mechanism and an adapter 2. The ratchet mechanism has a ratchet 102, and an adapter hole 9 is formed at the central axis of the ratchet 102. One end of the adapter 2 is inserted into the adapter hole 9, and the adapter hole 9 is used to lock and restrict the rotation of one end of the adapter 2 in the inserted state. The other end of the adapter 2 is used to lock and connect the screwdriver 3, so that the ratchet mechanism connects the screwdriver 3 through the insertion of the adapter 2 and the adapter hole 9, thus forming a ratchet screwdriver 3. "Locking connection" means a fixed connection or a detachable connection. Figure 7 and Figure 8 The black part in the image represents the friction texture of the screwdriver handle 3.

[0043] In one embodiment, such as Figure 7 , Figure 9 as well as Figure 11 As shown, the ratchet mechanism is a one-way ratchet mechanism 1; the one-way ratchet mechanism 1 also includes a steering block 101, a ratchet block 103, and an elastic body 104; a limiting cavity 4 is formed in the steering block 101 to restrict the position of the ratchet 102, and the central axis of the ratchet 102 coincides with the central axis of the limiting cavity 4, so that the ratchet 102 can rotate in the limiting cavity 4; a movable cavity 5 is also formed in the steering block 101 to accommodate the ratchet block 103, and the movable cavity 5 is connected to the limiting cavity 4. Figure 9 , Figure 10 and Figure 12As shown, the circumferential outer wall of the ratchet 102 has a toothed portion 7 with multiple external teeth, and the ratchet block 103 has an arc segment 29 that abuts against the external teeth of the toothed portion 7; the elastic body 104 is disposed between the side wall of the movable cavity 5 and the side of the ratchet block 103 away from the ratchet 102, and the ratchet block 103 also has a pawl portion 8 that engages with the external teeth of the toothed portion 7, so that when the steering block 101 transmits the steering force applied to the arc segment 29 toward the pawl portion 8 through the elastic body 104, the pawl portion 8 simultaneously locks the ratchet 102, and when the steering block 101 transmits the steering force applied to the pawl portion 8 toward the arc segment 29 through the elastic body 104, the ratchet 102 and the arc segment 29 lock simultaneously. 29. Relative rotation is generated; an adapter hole 9 is formed at the central axis of the ratchet 102, and both ends of the adapter hole 9 pass through the steering block 101, so that one end of the adapter 2 can be inserted into the adapter hole 9 through either end of the adapter hole 9, and the adapter hole 9 locks and restricts the rotation of the adapter 2; the other end of the adapter 2 is used to lock and connect the handle of the screwdriver 3, and the central axis of the screwdriver 3 coincides with the central axis of the ratchet 102; the screwdriver 3 is used to connect the screw, so that the adapter 2 can tighten the screw by inserting one end into the adapter hole 9, and the adapter 2 can loosen the screw by inserting the other end into the adapter hole 9. The elastic body 104 is a spring. The outer teeth of the toothed part 7 are inclined ratchet teeth that are adapted to be inserted into the pawl part 8.

[0044] In one embodiment, such as Figure 8 , Figure 9 and Figure 10 As shown, multiple insertion slots 10 are formed on the circumferential sidewall of the adapter hole 9, and an insertion block 11 is formed on the circumferential side of one end of the adapter 2 to engage with some or all of the insertion slots 10, so as to restrict the rotation of the adapter 2 by the adapter hole 9. For example, one end of the adapter 2 is formed into an external hexagonal prism shape, and the adapter hole 9 is an internal hexagonal hole shape.

[0045] In one embodiment, such as Figure 9 , Figure 10 and Figure 11 As shown, the circumferential outer wall of the ratchet 102 also forms a limiting ring portion 12, and the limiting cavity 4 has a circular contour sidewall that circumferentially abuts against the limiting ring portion 12, so that a gap can exist between the toothed portion 7 and the limiting cavity 4. The outer diameter of the limiting ring portion 12 can be greater than or equal to the outer diameter of the toothed portion 7. The toothed portion 7 and the circular contour sidewall of the limiting cavity 4 can be adapted to abut against each other or have a gap.

[0046] In one embodiment, such as Figure 8 , Figure 10 and Figure 11 As shown, the steering block 101 includes a steering groove 10101 and a steering cover plate 10102. The flat surface of the steering cover plate 10102 covers the groove opening of the steering groove 10101, forming a limiting cavity 4 and a movable cavity 5, so as to facilitate the installation and replacement of the ratchet 102, the ratchet block 103 and the elastic body 104.

[0047] The limiting ring 12 is located on the outer circumferential wall of the ratchet 102 at one end away from the steering cover 10102, and the area on the toothed portion 7 that abuts against the arc segment 29 is located on the outer circumferential wall of the ratchet 102 at one end near the steering cover 10102.

[0048] In one embodiment, such as Figure 8 , Figure 9 and Figure 11 As shown, the depth of the limiting cavity 4 of the steering groove 10101 is adapted to the thickness of the ratchet 102, and the depth of the movable cavity 5 of the steering groove 10101 is adapted to the thickness of the ratchet block 103, so that the side of the ratchet 102 near the steering cover plate 10102 and the side of the ratchet block 103 near the steering cover plate 10102 can be flush with the steering cover plate 10102. The depth of the limiting cavity 4 is greater than the depth of the movable cavity 5, and the positions of the limiting cavity 4 and the movable cavity 5 of the steering groove 10101 form a stepped groove.

[0049] In one embodiment, such as Figure 9 , Figure 11 and Figure 12 As shown, the movable cavity 5 and the ratchet block 103 are respectively connected to the sidewalls of the elastic body 104 to form parallel planes. The elastic body 104 is compressed between the parallel planes of the movable cavity 5 and the ratchet block 103 to further balance the stability of the two ends of the circumferential outer sidewall of the ratchet 102.

[0050] In one embodiment, such as Figure 9 and Figure 12 As shown, a first convex arc surface 13 and a second convex arc surface 14 are formed on both sides of the planar sidewall of the ratchet block 103 that abuts against the elastic body 104. The first convex arc surface 13 is formed on the end face of the ratchet block 103 away from the pawl portion 8. The distance from the first convex arc surface 13 to the sidewall of the movable cavity 5 is less than the distance from the second convex arc surface 14 to the sidewall of the movable cavity 5.

[0051] In one embodiment, a toothed portion 6 with multiple meshing teeth is formed on the arc segment 29, and the meshing teeth of the toothed portion 6 engage with the outer teeth of the toothed portion 7, so that the toothed portion 7 and the toothed portion 6 can produce a clicking rotation when they rotate relative to each other. In another embodiment, the adapter 2 and the adapter hole 9 of the ratchet 102 are magnetically connected, and a limiting ring 15 is formed on the adapter 2 to support the through position on the side wall of the steering block 101, so that the limiting ring 15 restricts the position of the adapter 2 magnetically inserted into the adapter hole 9. The limiting ring 15 and the steering block 101 are also magnetically connected.

[0052] In one embodiment, such as Figure 7 , Figure 8 and Figure 9As shown, three screwdrivers 3 are provided. A mounting block is formed at the end of the screwdriver 3's handle opposite to the screwdriver head. The other end of the adapter 2 and the circumferential direction of the steering block 101 form mounting grooves 16 that lock onto the mounting block at the screwdriver 3's handle. The line connecting the two mounting grooves 16 on the steering block 101 passes through the center of the ratchet 102. The mounting block is an external hexagonal prism, and the mounting grooves 16 are correspondingly internal hexagonal prisms.

[0053] In one embodiment, such as Figure 8 and Figure 11 As shown, an embedded annular groove 17 is formed around the groove opening of the steering groove 10101 to embed the steering cover 10102, so as to restrict the position of the steering cover 10102, that is, to restrict the through position of the steering cover 10102 corresponding to the transition hole 9.

[0054] In one embodiment, such as Figure 9 and Figure 10 As shown, an annular groove 18 for accommodating an elastic buffer ring is formed on the circumferential outer wall of the limiting ring portion 12, and the elastic buffer ring is elastically compressed and abuts against the annular groove 18 and the circular contour sidewall. The elastic buffer ring is a rubber ring.

[0055] In one embodiment, such as Figure 13 As shown, the elastic body 104 is elastically compressed between the side wall of the movable cavity 5 and the side of the ratchet block 103 opposite to the pawl portion 8. The side wall of the movable cavity 5 forms an abutment plane that abuts against one end of the elastic body 104, and the side of the ratchet block 103 opposite to the pawl portion 8 forms an abutment plane that abuts against the other end of the elastic body 104. The elastic body 104 utilizes its own elastic restoring force to adapt and insert the pawl portion 8 between the side wall of the movable cavity 5 and the side wall of the ratchet wheel 102. Multiple teeth are formed on the arc segment 29. The toothed portion 6, and the teeth of the toothed portion 6 mesh with the outer teeth of the toothed portion 7, so that when the steering block 101 transmits the steering force applied to the arc segment 29 toward the pawl portion 8 through the elastic body 104, the toothed portion 7 and the toothed portion 6 can generate a clicking rotation when they rotate relative to each other; when the steering block 101 transmits the steering force applied to the pawl portion 8 toward the arc segment 29 through the elastic body 104, the pawl portion 8 is limited between the side wall of the movable cavity 5 and the side wall of the ratchet 102, and the pawl portion 8 and the toothed portion 6 lock the ratchet 102 simultaneously.

[0056] In one embodiment, the difference from the above embodiments is that the reinforcing sleeve 24 is not used, such as... Figure 2 , Figure 5 as well as Figure 14 As shown, the other end of the core rod 1901 can be supported in the blade groove 22 or the receiving groove 23 at the end position away from the pen tip 1902.

[0057] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A screwdriver pen, characterized by The device includes a screwdriver (3), a pen refill (19), and a mounting connector (20). The mounting connector (20) has a through hole (21), and the inner diameter of one end of the through hole (21) is larger than the inner diameter of the other end of the through hole (21). The pen refill (19) includes a core rod (1901) and a pen tip (1902) located at one end of the core rod (1901). One end of the core rod (1901) can be inserted through one end of the through hole (21) and is confined within the screwdriver. The pen tip (1902) is exposed inside the other end of the perforation (21); the mounting connector (20) has a plug-in portion (2001) on the outer side wall near the end of the perforation (21) that is adapted to be inserted into the inner side wall of the groove (22) of the head (301) of the screwdriver (3); the core rod (1901) is limited in the limiting space formed by the groove (22) of the head (301) and the perforation (21).

2. The screwdriver pen according to claim 1, characterized in that, The perforation (21) includes a cylindrical hole (2101) at one end of the perforation (21) and a support hole (2102) at the other end of the perforation (21); the diameter of the support hole (2102) gradually increases from the other end of the perforation (21) toward the cylindrical hole (2101), and a support block (25) is formed on the core rod (1901) near the pen tip (1902) in the circumferential direction to support and insert into the support hole (2102), so that the support block (25) abuts against the support hole (2102), and the pen tip (1902) is exposed at the other end of the perforation (21).

3. The screwdriver pen according to claim 2, characterized in that, The core rod (1901) is fitted with a reinforcing sleeve (24). One end of the reinforcing sleeve (24) abuts against the end plane of the support block (25) away from the pen tip (1902), and the other end of the reinforcing sleeve (24) abuts against the groove (22) of the blade head (301).

4. The screwdriver pen according to claim 3, characterized in that, A stabilizing block (26) is formed in the circumferential direction on the core rod (1901) near the support block (25), and an elastic pad (27) is formed in the circumferential direction inside the reinforcing sleeve (24), and the elastic pad (27) elastically deforms and abuts against the stabilizing block (26) away from the outside of the core rod (1901).

5. The screwdriver pen according to claim 1, characterized in that, The handle portion (302) of the screwdriver (3) has a receiving groove (23) that connects to the cutting groove (22) of the head (301), and the receiving groove (23) is used to receive the other end of the core rod (1901) so that the core rod (1901) is limited in the limiting space formed by the receiving groove (23), the cutting groove (22) and the through hole (21).

6. The screwdriver pen according to claim 5, characterized in that, The other end of the core rod (1901) can be supported in the receiving groove (23).

7. The screwdriver pen according to any one of claims 1 to 6, characterized in that, The mounting connector (20) is a metal part, and the cutting groove (22) of the cutting head and the insertion part (2001) are magnetically connected.

8. The screwdriver pen according to any one of claims 1 to 6, characterized in that, The mounting connector (20) is formed into a beveled extension (2002) on the outer side wall near the other end of the perforation (21) and the outer diameter of the beveled extension (2002) gradually increases from the other end of the perforation (21) toward the cylindrical hole (2101).

9. The screwdriver pen according to any one of claims 1 to 6, characterized in that, The screwdriver pen also includes a ratchet mechanism and an adapter (2); the ratchet mechanism has a ratchet (102), and an adapter hole (9) is formed at the central axis of the ratchet (102). One end of the adapter (2) is inserted into the adapter hole (9), and the adapter hole (9) is used to lock and restrict the rotation of one end of the adapter (2) in the inserted state. The other end of the adapter (2) is used to lock and connect the screwdriver (3), so that the ratchet mechanism can connect the screwdriver (3) through the insertion of the adapter (2) and the adapter hole (9) to form a ratchet screwdriver.

10. The screwdriver pen according to claim 9, characterized in that, The ratchet mechanism is a one-way ratchet mechanism (1); the one-way ratchet mechanism (1) further includes a steering block (101), a ratchet block (103), and an elastic body (104); the steering block (101) has a limiting cavity (4) for limiting the position of the ratchet (102), and the central axis of the ratchet (102) coincides with the central axis of the limiting cavity (4), so that the ratchet (102) can rotate in the limiting cavity (4); the steering block (101) also has a movable cavity (5) for accommodating the ratchet block (103), and the The movable cavity (5) is connected to the limiting cavity (4). The circumferential outer wall of the ratchet (102) is formed with a toothed portion (7) with multiple external teeth. The ratchet block (103) is formed with an arc segment (29) that abuts against the external teeth of the toothed portion (7). The elastic body (104) is disposed between the side wall of the movable cavity (5) and the side of the ratchet block (103) away from the ratchet (102). The ratchet block (103) is also formed with a pawl portion (8) that engages with the external teeth of the toothed portion (7) so that the steering block (101) can pass through. When the elastic body (104) transmits the steering force applied to the arc segment (29) toward the pawl portion (8), the pawl portion (8) simultaneously locks the ratchet (102). When the steering block (101) transmits the steering force applied to the pawl portion (8) toward the arc segment (29) through the elastic body (104), the ratchet (102) and the ratchet block (103) rotate relative to each other. Both ends of the adapter hole (9) pass through the steering block (101) so that one end of the adapter (2) can pass through either end of the adapter hole (9). One end is inserted into the adapter hole (9), and the adapter hole (9) locks and restricts the rotation of the adapter (2); the other end of the adapter (2) is used to lock and connect the handle of the screwdriver (3), and the central axis of the screwdriver (3) coincides with the central axis of the ratchet (102); the tip of the screwdriver (3) is used to connect the screw, so that the adapter (2) can tighten the screw by inserting one end into the adapter hole (9), and the adapter (2) can loosen the screw by inserting the other end into the adapter hole (9).

Images