TWM621638U - Screwdriver bit capable of firmly holding screw - Google Patents

Abstract

The novel screwdriver bit capable of stably supporting a screw has a magnetic suction unit on the screwdriver bit, and the magnetic suction unit is clamped on the screwdriver bit by means of a clip, and when the screwdriver bit is inserted into a screw, the locking operation is performed During the operation, the magnetic attraction unit and the end face of the head of the screw will be at a certain distance, so that the magnetic attraction unit acts on the screw with a magnetic effect in a non-contact state, so that the screw is inserted into the screwdriver bit. The screw is under the action of magnetic force to achieve the fast and stable operation of the subsequent locking operation.

Description

A bit that can hold the screw firmly

This work is about a design of a screwdriver, especially a screwdriver bit that can support screws firmly.

Referring to FIG. 1 and FIG. 2, it is known that the utility model patent "Magnetic Screwdriver Tool" 1 with the publication number of CN205043687U in China, its creation includes a screwdriver tool 11, a raised structure 12, a sleeve 13, a magnetic ring 14 and a Buckle 15; wherein, the driver tool 11 has an operating section 111, a working section 112 and a neck 113, the operating section 111 and the working section 112 are located at different ends of the driver tool 11, and the neck 113 is located at Between the operating section 111 and the working section 112; in addition, the protruding structure 12 is located between the working section 112 and the neck 113 and is integrated with the driver tool 11; and the sleeve 13 has a circular hole 131, an insert Slot 132 and a groove 133, the circular hole 131 is formed in the center of the sleeve 13, its diameter 131a is larger than the maximum width 12a of the raised structure 12, the insert groove 132 and the groove 133 are formed in the sleeve 13 and located in the The different ends of the circular hole 131; as for the magnetic ring 14 embedded in the groove 132 of the sleeve 13; finally, the buckle 15 is inserted into the groove 133 of the sleeve 13, the buckle 15 surrounds Outside the neck 113 of the driver tool 11, the sleeve 13 is allowed to move back and forth relative to the driver tool 11, but is blocked by the rear slope of the raised structure 12, preventing the sleeve 13 from easily leaving the working section 112; therefore, When a screw 2 is inserted into the working section 112 of the driver tool 11, the distance b1 from the magnetic ring 14 to the screw 2 is smaller than the distance b2 from the magnetic ring 14 to the raised structure 12. Under the magnetic field force of the magnetic ring 14, The sleeve 13 slides toward the working section 112 and sucks the screw 2 , once the screw 2 leaves the driver tool 11 , the sleeve 13 automatically returns to its original position, which is favorable for locking or loosening.

However, after the actual use, it is found that the conventional magnetic screwdriver tool 1 is prone to the following defects in use, and the details are as follows:

1. In view of the fact that the sleeve 13 is set on the driver tool 11 in a sliding form, and the sleeve 13 is designed in a form that cannot be separated from the driver tool 11, it can only be used on the driver tool 11. Sliding form; in view of the fact that there are some iron filings/iron powders on the screw 2, or iron filings/iron powders generated by cutting during the locking process, these iron filings/iron powders will be The suction effect affects and partially adsorbs on the magnetic ring 14, which causes the end surface of the suction ring 14 to be easily covered with the iron filings/iron powder, thereby affecting the adsorption effect of the magnetic ring 14 and the screw, resulting in smooth locking operation. The performance is greatly reduced. Although different tools can be used for cleaning operations, the effect is limited and needs to be improved.

2. Continuing from the above, before and after the locking operation, the sleeve 13 moves on the screwdriver tool 11 by magnetically attracting the screw, so the iron filings/iron powder generated by the locking operation will be continuously affected by the magnetic force. It is hidden between the circular hole 131 and the neck 113, and the iron filings/iron powder stored there cannot be removed effectively. Because of this, the accumulation of excessive iron filings/iron powder will cause the set If the barrel 13 is completely blocked and cannot move, the effect of the magnetic ring 14 is lost, and the screw 2 cannot be magnetically attracted to be positioned during the locking operation, which increases the inconvenience in the locking operation.

3. Furthermore, the sleeve 13 and the screwdriver tool 11 are set in a combination state that cannot be disassembled, so it is necessary to prepare the magnetic screwdriver tool 1 with a variety of different shapes of the working section 112 in order to effectively respond to various types of screwdriver tools. When the screw 2 of the drive hole 21 is tightened, it will be a big burden for the worker to carry too many tools, and because the sleeve 13 and the screwdriver tool 11 are not designed to be disassembled, once the working section 112 If the screw 2 cannot be inserted into the screw 2 due to wear and tear after long-term use, or the magnetic field force of the magnetic ring 14 is exhausted and affects the use, if it cannot be disassembled and replaced, it can only be discarded and replaced with a new product, which is invisible. This will cause the cost of tools and spare parts to increase, which needs to be improved.

Therefore, the purpose of the present invention is to provide a driver bit that can stably support the screw, which is helpful for the subsequent locking operation to be performed quickly and stably.

Therefore, the screwdriver bit capable of supporting the screw stably of the present invention has a rod body, a driving section disposed on the rod body, a magnetic attraction unit added on the driving section, and a magnetic attraction unit fixed on the The clip on the driving section; wherein, the driving section ring is provided with a positioning groove, and the magnetic attraction unit has a body, a through hole opened in the body and can be used for the driving section to pass through, and a A magnetic attraction piece on the wall surface of the through hole and adjacent to the end edge of the main body and corresponding to the end surface of the head of a screw, and an accommodating groove opposite the magnetic attraction piece and disposed on the wall surface of the through hole, the accommodating groove The clasp can be arranged inside, and the accommodating slot corresponds to the positioning slot, so that the clasp can be clamped between the accommodating slot and the positioning slot; therefore, the magnetic attraction unit passes through the accommodating slot. Between the setting slot and the positioning slot, the clip can be clamped, so that the magnetic attraction unit can be fixed on the driving section, so that the driving section can be inserted into the pinhole of a screw, and the head of the screw A distance is formed between the end face of the magnetic attraction unit and the magnetic attraction unit, and when the magnetic attraction unit is not in contact with the screw, the magnetic force effect generated by the magnetic attraction unit acts on the screw, so that the screw is inserted into the screwdriver. The screw achieves a stable positioning effect, which is helpful for the screw to perform the subsequent locking operation stably and quickly, and the magnetic suction unit can be pulled out from the clamping bit at any time, and then the screw with different drive section types can be removed. The screwdriver head is quickly clamped and used, which not only effectively improves the practicability, but also removes the cutting iron scraps/iron powder adsorbed during the locking process, so as to maintain the original magnetic attraction force of the magnetic attraction unit, so as to prolong the operation time. The service life of the magnetic unit.

The aforementioned and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiments with reference to the drawings.

Referring to FIG. 3 , the first preferred embodiment of the present invention can stably support the bit 4 of the screw (represented by a schematic diagram in the figure), which can be inserted into the pin hole 51 of a screw 5 and locked by a lock A locking tool (not shown in the figure) is driven to generate a locking power, and the driver bit 4 has a rod body 41 , a driving section 42 set on the rod body 41 , and a magnet attached to the driving section 42 . A suction unit 43, and a clip 44 for fixing the magnetic suction unit 43 on the driving section 42; wherein, the rod body 41 can be connected with the locking tool, and a positioning groove 421 is formed on the driving section 42 , and the shape of the aforementioned driving section 42 is formed in a shape corresponding to the pinhole 51 of the screw 5 . In this embodiment, the shape of the driving section 42 is a line shape, a square shape, and a plum blossom shape. , hexagonal shape or other special shape designs such as polygons, and the following figures in this embodiment take the plum blossom shape as an example for illustration.

Furthermore, the magnetic attraction unit 43 has a main body 431 , a through hole 432 formed on the main body 431 for the driving section 42 to pass through, and a wall surface of the through hole 432 and adjacent to the main body 431 . A magnetic attraction piece 433 corresponding to the end edge 431a of the screw 5 and the head end face 52 of the screw 5, and an accommodating groove 434 opposite the magnetic attraction piece 433 and disposed on the wall surface of the through hole 432, and the aforementioned accommodation The clasp 44 can be disposed in the slot 434, and the accommodating slot 434 corresponds to the positioning slot 421, so that the clasp 44 is clamped between the accommodating slot 434 and the positioning slot 421, So that the magnetic attraction unit 43 is fixed on the driving section 42 and is located in the middle position of the driving section 42, and after the driving section 42 is inserted into the pin hole 51 of the screw 5, the magnetic attraction unit 43 and the The head end surface 52 of the screw 5 has a distance D, and the distance of the distance D is 2-3 millimeters (mm), as shown in FIG. 4 .

Referring to FIG. 4 , firstly, the driving section 42 is passed through the through hole 432 of the magnetic attraction unit 43 and then protrudes outward, so that the latch 44 accommodated in the accommodating slot 434 is caused by the accommodating hole 434 . When the locating slot 434 corresponds to the positioning slot 421, it is locked between the accommodating slot 434 and the positioning slot 421 instantly, so that the magnetic attraction unit 43 is fixed at the middle position of the driving section 42, and then A screw 5 can be inserted to perform the locking operation. Therefore, after the driving section 42 is inserted into the pin hole 51 of the screw 5, the screw 5 will enter the magnetic attraction range of the magnetic element 433. At this time, the magnetic The suction member 433 is at a distance D from the head end face 52 of the screw 5 , so that the magnetic suction member 433 acts on the screw 5 with a magnetic force effect in a non-contact state, so that the screw 5 is inserted into the screw 5 . The screw 5 achieves a stable positioning effect. Of course, the deviation between the center of the screw 5 and the bit 41 corresponding to the screwdriver bit 41 during initial insertion will also be affected by the influence of the head end face 52 in the magnetic effect range. Guide, and when the screw 5 is driven by the bit 4 to push against an object 6 (not shown in the figure), and apply a rotational torque to the bit 4, so that the screw 5 is in the bit 4 The driving section 42 enters the locked object 6 quickly and stably until the head end face of the screw 5 is horizontal with the surface of the object 6, and then the driving section 42 is withdrawn from the pin hole 51 of the screw 5, so That is, the locking operation of the screw 5 is completed.

Continuing the above, after the magnetic attraction unit 43 is engaged with the driving section 42, it is stably located in the middle position of the driving section 42, so that the driving section 42 is inserted into the pin hole 51 of the screw 5. When the screw 5 is closed, the head end face 52 of the screw 5 is not in close contact with the magnetic attraction unit 43, but a distance D is formed instead, so that when the screw 5 is locked to generate cutting iron scraps/iron powder, there are only a few iron scraps/iron powder. The iron filings/iron powders are adhered to the periphery of the magnetic attraction unit 43 due to the magnetic attraction, and are also set by the existence of the distance D, so as to avoid the head end face 52 of the screw 5 during the locking process. Cause wear, of course, if iron scraps/iron powder accidentally drills into the through hole 432, just separate the driving section 42 of the driver bit 41 from the magnetic attraction unit 43, as shown in FIG. 5, quickly After removing the iron scraps/iron powder, the driving section 42 is inserted through the locking hole 432 and protruded outward, so that the latching member 44 is locked between the accommodating groove 434 and the positioning groove 421, can be used again.

Furthermore, as the locking hole 61 of the object 6 is of a concave design, after the screw 5 is inserted and locked by the driving section 42 of the driver bit 4 , the magnetic attraction piece 433 and the screw 5 can be used. The distance D between the head end faces 52 is set so that the screw 5 is driven by the rotational torque of the driver bit 41 to be locked and sink into the recessed locking hole 61 in a single-position manner (ie, as shown in FIG. 6 ). shown), and there is no need to replace the drive with different tools to achieve the lack of the locking operation, which helps the locking hole 61 to avoid damage, and effectively achieves a fast and stable locking effect. Of course, for different The locking operation needs to pass through the different types of plugs of the driving section 42 with different pin holes 51 of the screw 5. The driving section 42 and the magnetic attraction unit 43 of the driver bit 4 can be connected and disassembled. Design, it is not necessary to prepare a large number of combinations of the driver bit 4 and the magnetic attraction unit 43 with different shapes, and only need to prepare a magnetic attraction unit 43 to replace the driver bit 4 with different shapes The clips are connected to reduce the heavy burden of carrying too many combination tools. At the same time, after long-term use, either the single bit 4 or the magnetic suction unit 43 is damaged and cannot be used. The damaged one can be replaced quickly and stably in subsequent operations, so it will not increase the cost of tools and spare parts, and effectively improve the convenience of use.

Referring to FIG. 7 and FIG. 8 , the second preferred embodiment of the present invention still includes the components described in the previous embodiment, and the connection relationship between the elements is the same as that described in the previous embodiment, It will not be repeated; in particular, in this embodiment, in order to effectively prevent the cutting iron scraps/iron powder generated in the locking operation from being scattered and flying in the process of rapidly driving the twist lock, it will affect people. In this embodiment, the magnetic attraction A blocking portion 435 extends from the end edge 431a of the body 431 of the unit 43 , and the blocking portion 435 is provided in a tapered shape. The bottom edge 435a is parallel to the end 422 of the driving section 42, so that when the driving section 42 is inserted into the pin hole 51 of the screw 5, the bottom edge 435a will not abut against the screw 5 On the end face 52 of the head of the screw 5, part of the head of the screw 5 is surrounded by the blocking part 435, and the screw 5 is still affected by the non-contact magnetic attraction effect of the magnetic attraction piece 423. In this way, a fast and stable locking operation can be achieved, and the setting of the blocking portion 435 can be used to effectively prevent the cutting iron scraps/iron powder generated in the locking process from scattering outward, so that the workers are not affected. To separate the magnetic attraction unit 42 from the work piece bit 41 , the cutting iron scraps/iron powder remaining in the through hole 432 can be cleaned, as shown in FIG. 9 , so as to effectively maintain the magnetic attraction unit 43 Good magnetic suction effect, effectively improve the smoothness and locking effect of the operation.

To sum up the above, the screwdriver head of the present invention adopts a fixed positioning design through the magnetic attraction unit, so that after the magnetic attraction unit is fixed with the screwdriver head, the magnetic attraction unit is fixed in the middle of the driving section position, so that when the driving section of the driver bit is inserted into the pinhole of a screw, the magnetic attraction unit and the head end face of the screw will form a distance, so that the magnetic attraction unit is in a non-contact state with The magnetic attraction effect acts on the screw, so that the screw that is inserted by the screwdriver head is subjected to the magnetic force to achieve a fast and stable locking and positioning effect in the locking operation. Of course, the magnetic attraction unit can be used at any time. The screwdriver head is designed to be pulled out to remove the cutting iron chips/iron powder absorbed during the locking process, so as to maintain the original magnetic attraction force of the magnetic attraction unit and prolong the service life of the magnetic attraction unit.

However, the above descriptions are merely to illustrate the preferred embodiments of the present invention, and should not limit the scope of implementation of the present invention, that is, simple equivalent changes and modifications made in accordance with the scope of the patent application for this new model and the contents of the description of the new model. , shall still fall within the scope of this new patent.

(acquaintance) 1: Magnetic screwdriver tool 11: Screwdriver tools 12: Uplift structure 13: Sleeve 14: Magnetic ring 15: Snaps 111: Operation section 112: Working segment 113: Neck 131: round hole 132: Groove 133: Groove 12a: Uplift structure width 131a: round hole diameter 2: Screw 21: Drive hole 3: Object 31: Locking hole b1, b2: distance (this new model) 4: screwdriver head 41: Rod body 42: Drive segment 43: Magnetic suction unit 44: Snaps 421: Positioning slot 422: Butt 431: Ontology 432: Through the hole 433: Magnetic Parts 434: accommodating slot 435: Stopper 431a: end edge 435a: Bottom edge D: Spacing r1: Diameter of the punch hole r2: Diameter of stop 5: Screws 51: pinhole 52: Head end face 6: Objects 61: Lock hole

Fig. 1 is a schematic diagram of a utility model "Magnetic Screwdriver Tool" known in China Bulletin No. CN205043687U. FIG. 2 is a schematic diagram of a state of use of a conventional magnetic screwdriver tool. FIG. 3 is a schematic diagram of the first preferred embodiment of the present invention. FIG. 4 is a schematic diagram of the locking state of the first preferred embodiment. FIG. 5 is a schematic view of the separation state of the driver head and the magnetic attraction unit of the first preferred embodiment. FIG. 6 is a schematic diagram of another locking aspect of the first preferred embodiment. FIG. 7 is a schematic diagram of the second preferred embodiment of the present invention. FIG. 8 is a schematic diagram of the insertion state of the second preferred embodiment. FIG. 9 is a schematic diagram of the separation state of the driver head and the magnetic attraction unit of the second preferred embodiment.

(this new model)

4: screwdriver head

41: Rod body

42: Drive segment

43: Magnetic suction unit

44: Snaps

421: Positioning slot

431: Ontology

432: Through the hole

433: Magnetic Parts

434: accommodating slot

431a: end edge

D1: Spacing

5: Screws

51: pinhole

52: Head end face

Claims (6)

A screwdriver bit capable of stably supporting a screw, the bit can be inserted into a pinhole of a screw and driven by a locking tool to generate a locking power, and the bit has a rod body, and a screwdriver set on the rod body The driving section, wherein the rod body can be connected with the locking tool, and the shape of the driving section forms a shape corresponding to the pinhole of the screw; it is characterized in that: The upper ring of the driving section is provided with a positioning groove, and the driving section is further provided with a magnetic attraction unit, and a fastener for fixing the magnetic attraction unit on the driving section, wherein the magnetic attraction unit has a body, an opening A through hole on the main body and through which the driving section can pass, a magnetic attraction member located on the wall surface of the through hole and adjacent to the end edge of the main body and corresponding to the end surface of the head of the screw, and an opposite The magnetic attraction piece is disposed in an accommodating groove on the inner wall of the through hole, and the accommodating groove can be used for arranging the latching element, and the accommodating groove corresponds to the positioning groove, so as to facilitate the latching The element is clamped between the accommodating slot and the positioning slot, so that the magnetic attraction unit is fixed on the driving section, and after the driving section is inserted into the pin hole of the screw, the magnetic attraction unit and the screw The end face of the head is at a distance. The driver bit capable of stably supporting a screw according to claim 1, wherein a blocking portion extends from the end edge of the main body, and the blocking portion is arranged in a tapered shape. The driver bit capable of stably supporting a screw according to claim 2, wherein the maximum diameter of the blocking portion is larger than the diameter of the through hole of the main body. The bit for stably supporting a screw according to claim 1, wherein the distance between the magnetic attraction unit and the end face of the head of the screw is 2-3 millimeters (mm). The driver bit capable of stably supporting a screw according to claim 1, wherein the shape of the driving section can be a cross shape, a square head shape, a six-way plum shape, or the like. The driver bit capable of stably supporting a screw according to claim 1, wherein the magnetic attraction unit is fixed at a middle position of the driving section.

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