Screwdriver bit

Abstract

The utility model discloses a screwdriver bit. The screwdriver bit comprises a screwdriver bit body, the screwdriver bit body is provided with a first screwdriver bit end and a second screwdriver bit end, and the first screwdriver bit end of the screwdriver bit is provided with a tool bit matched with a screw; the first sleeve is arranged on the bit main body in a sleeving manner, the first sleeve is provided with a first end part and a second end part, the first end part of the first sleeve extends towards the first bit end part of the bit main body, and at least the tool bit is arranged in the first sleeve in a sleeving manner; the second end part of the first sleeve extends towards the second bit end part of the bit main body; one end of the elastic piece abuts against the second end of the first sleeve, and the other end of the elastic piece is indirectly or directly fixed to the second bit end of the bit body. And a magnetic piece is arranged at the first end part of the first sleeve. According to the screwdriver bit, the screw adsorption effect is good, use is very convenient, and space limitation of locking workpieces can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of screwdriver bits, and particularly relates to a screwdriver bit. BACKGROUND

[0002] A screwdriver bit generally refers to a screwdriver bit installed on a hand drill or an electric hammer to screw a screw, and is used to fasten or loosen the screw. The head shape of the screwdriver bit needs to be matched with the outer shape of the screw head, so the screwdriver bit can be divided into a plurality of types according to different head shapes, such as a straight type, a cross type, a Chinese character type, a star type, a square head type, a hexagonal head type and a Y type head.

[0003] In some special applications, the screwdriver bit is not allowed to be used to screw the screw by hand contact, and the following three processing methods are usually used in the prior art.

[0004] 1. A magnetic ring is added to keep the screwdriver bit magnetic to adsorb the screw to be locked; however, the magnetic ring is large in size, and is limited by the space of the locked workpiece in many working conditions, and cannot be used. In addition, the magnetic adsorption effect of the added magnetic ring is not ideal, and the screw cannot be adsorbed during use, and the adsorbed screw often falls off.

[0005] 2. The screwdriver bit itself is magnetized to directly adsorb the screw to be locked; however, the magnetic adsorption structure is prone to cause poor magnetic adsorption effect due to the weakening of the magnetic force, and the screw falls off after being used for a period of time, so the screwdriver bit needs to be magnetized frequently, otherwise the screw falls off after being used for a period of time, and the screw adsorption effect is not ideal.

[0006] 3. A vacuum generator is used to adsorb the screw to be locked, and the screw adsorption effect is good, but the cost is too high. In addition, the vacuum generator is large in size, and needs to be connected with a pipeline, so it is not convenient to apply the vacuum generator to a manual screw locking station, especially a station where the screwdriver bit needs to be frequently replaced. CONTENT OF THE UTILITY MODEL

[0007] The present application aims to provide a screwdriver bit to solve the technical problem that the screwdriver bit in the prior art is easily limited by the space of the locked workpiece.

[0008] The screwdriver bit provided by the present application comprises:

[0009] A screwdriver bit body, the screwdriver bit body has a first screwdriver bit end and a second screwdriver bit end, the first screwdriver bit end of the screwdriver bit body has a bit head matched with the screw;

[0010] A first sleeve is sleeved on the bit body, the first sleeve has a first end and a second end, the first end of the first sleeve extends to the first bit end of the bit body and at least sleeves the bit head in the first sleeve, and the second end of the first sleeve extends to the second bit end of the bit body.

[0011] An elastic member has one end abutting against the second end of the first sleeve and the other end indirectly or directly fixed to the second bit end of the bit body.

[0012] The first end of the first sleeve is provided with a magnetic member, and when a screw is attracted by the magnetic member and matched with the bit head of the bit body, the thread of the screw is at least partially located in the first end of the first sleeve.

[0013] In some embodiments, the second bit end of the bit body is fixedly sleeved with a second sleeve, the second sleeve has a third end and a fourth end.

[0014] One end of the elastic member abuts against the second end of the first sleeve, and the other end of the elastic member abuts against the third end of the second sleeve.

[0015] In some embodiments, the second sleeve is provided with at least one threaded hole.

[0016] Further comprising a screw arranged in the threaded hole of the second sleeve and used for fixing the second sleeve to the bit body.

[0017] In some embodiments, the screwdriver bit further comprises a third sleeve, the third sleeve has a fifth end and a sixth end.

[0018] The sixth end of the third sleeve is fixedly sleeved on the third end of the second sleeve, and the fifth end of the third sleeve is sleeved on the second end of the first sleeve.

[0019] The elastic member is located in the third sleeve, and the second end of the first sleeve extends into the third sleeve and abuts against the elastic member.

[0020] In some embodiments, the second end of the first sleeve and the fifth end of the third sleeve are provided with limiting structures matched with each other to prevent the first sleeve from falling off the third sleeve.

[0021] In some embodiments, the third end of the second sleeve has an external thread, and the sixth end of the third sleeve has an internal thread matched with the external thread.

[0022] In some embodiments, the first sleeve has a first sleeve portion and a second sleeve portion;

[0023] The first sleeve portion cooperates with the bit body, the second sleeve portion is located at the first bit end of the bit body, and the inner diameter of the second sleeve portion is greater than the inner diameter of the first sleeve portion.

[0024] In some embodiments, the first sleeve portion and the second sleeve portion are detachably connected.

[0025] In some embodiments, the magnetic member comprises a permanent magnet.

[0026] In some embodiments, the elastic member comprises a spring.

[0027] The screwdriver bit provided by the embodiments of the present application adds a first sleeve on the basis of the design of a standard bit, the first end of the first sleeve is provided with a magnetic member, and the magnetic member can achieve the purpose of attracting a screw head. The screwdriver bit provided by the embodiments of the present application has one end of an elastic member abutting against the second end of the first sleeve, and the other end of the elastic member is indirectly or directly fixed to the second bit end of the bit body. By arranging the elastic member at the end away from the bit body, the space limitation of the screwdriver bit by a workpiece can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0028] The technical solutions and other beneficial effects of the present application will become apparent through the following detailed description of the specific embodiments of the present application in combination with the accompanying drawings.

[0029] Figure 1 The structure schematic diagram of the embodiments of the present application.

[0030] Figure 2 The structure schematic diagram of another embodiment of the present application;

[0031] Figure 3 The state schematic diagram of the bit attracting a screw in another embodiment of the present application;

[0032] Figure 4 The structure schematic diagram of another embodiment of the present application; Figure 3 The enlarged schematic diagram of part A in FIG. 6;

[0033] Figure 5 The structure schematic diagram of another embodiment of the present application;

[0034] Figure 6 The state schematic diagram of the bit attracting a screw in another embodiment of the present application; Figure 5 The enlarged schematic diagram of part B in FIG. 7;

[0035] Figure 7 The state schematic diagram of the bit attracting a screw in another embodiment of the present application;

[0036] Figure 8 Structure diagram of another embodiment of the application;

[0037] Figure 9 Structure diagram of another embodiment of the application;

[0038] Figure 10 Structure diagram of another embodiment of the application; Figure 9 Enlarged diagram of the C part.

[0039] Reference signs:

[0040] 10 - bit head main body, 101 - first bit head end, 102 - second bit head end, 103 - tool head;

[0041] 20 - first sleeve, 201 - first end, 202 - second end; 203 - first sleeve part; 204 - second sleeve part;

[0042] 30 - elastic member;

[0043] 40 - second sleeve, 401 - third end, 402 - fourth end;

[0044] 50 - third sleeve, 501 - fifth end, 502 - sixth end;

[0045] 60 - magnetic member; 70 - auxiliary fixing member;

[0046] 80 - screw, 801 - screw head;

[0047] 90 - screw;

[0048] 100 - connecting rod, 1001 - first connecting end, 1002 - second connecting end. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the application.

[0050] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplification, the elements of the particular examples are described in the following disclosure. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application can repeatedly refer to reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate a relationship between the various embodiments and / or arrangements being discussed. In addition, the present application provides various specific examples of processes and materials, but one of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0054] Please refer to Figure 1 The embodiment of the present application provides a screwdriver bit, comprising:

[0055] A bit body 10, the bit body 10 has a first bit end 101 and a second bit end 102, the first bit end 101 of the bit body 10 has a tool bit 103 matched with a screw 80, the shape of the tool bit 103 can be a cross head, a torx head, etc., the shape of the tool bit 103 is matched with the screw head 801 of the screw 80 to be adsorbed;

[0056] A first sleeve 20, the first sleeve 20 is sleeved on the bit body 10, the first sleeve 20 has a first end 201 and a second end 202, the first end 201 of the first sleeve 20 extends to the first bit end 101 of the bit body 10 and at least sleeves the tool bit 103 in the first sleeve 20, the second end 202 of the first sleeve 20 extends to the second bit end 102 of the bit body 10;

[0057] A resilient member 30, one end of the resilient member 30 abuts against the second end 202 of the first sleeve 20, the other end of the resilient member 30 is indirectly or directly fixed to the second bit end 102 of the bit body 10; when the screw 80 is adsorbed on the tool bit 103 of the bit body 10, the first end 201 of the first sleeve 20 is located below the screw head 801 of the screw 80, and part of the screw thread of the screw 80 is located inside the first end 201 of the first sleeve 20; the present application can avoid that the screwdriver bit is limited by the space of the locking workpiece by arranging the resilient member 30 at the end away from the tool bit 103 of the bit body 10.

[0058] The first end 201 of the first sleeve 20 is provided with a magnetic member 60; when the screw 80 is attracted by the magnetic member 60 and matched with the drill bit 103 of the drill bit body 10, the thread of the screw 80 is at least partially located in the first end 201 of the first sleeve 20. The first sleeve 20 is added on the basis of the standard drill bit design, the first end 201 of the first sleeve 20 is provided with the magnetic member 60, and the magnetic member 60 can achieve the purpose of attracting the screw 80.

[0059] In some embodiments, the magnetic member 60 includes a permanent magnet. The attraction force of the magnetic member 60 can prevent the screw 80 from falling during normal operation, and the attraction effect is good. The problem of frequent screw 80 falling caused by unstable magnetic attraction is solved, and frequent magnetic treatment is not required, which is very convenient to use.

[0060] In some embodiments, the permanent magnet includes at least one magnetic ring, and the magnetic ring is located inside the first end 201 of the first sleeve 20. When the screw 80 is attracted to the drill bit 103 of the drill bit body 10, the screw head 801 of the screw 80 is opposite the center position of the permanent magnet ring. Of course, this is only an example, and the number and structure of the magnetic ring in the application are not limited to this. As long as the function of attracting the screw 80 can be achieved, the effect of attracting the screw 80 can be achieved; and the installation position of the magnetic ring in the application is also not limited to this. For example, it can also be arranged outside the first end 201 of the first sleeve 20. As long as the function of attracting the screw 80 can be achieved, the effect of attracting the screw 80 can be achieved.

[0061] In some embodiments, the inside of the first end 201 of the first sleeve 20 is further provided with an auxiliary fixing member 70 for fixing the magnetic member 60. The auxiliary fixing member 70 can be used for auxiliary fixing of the magnetic member 60, and can also be used for auxiliary positioning when attracting the screw 80.

[0062] In some embodiments, the elastic member 30 includes a spring, and the spring is sleeved on the drill bit body 10. This is only an example, and the arrangement of the elastic member 30 in the application is not limited to this. As long as the compressed and automatically elongated effect can be achieved, the effect of automatic reset after compression can be achieved.

[0063] In some embodiments, one end of the spring is welded and fixed to the second end 202 of the first sleeve 20, and the other end of the spring is welded and fixed to the second drill bit end 102 of the drill bit body 10. This is only an example, and the fixing method of the elastic member 30 in the application is not limited to this. As long as the fixed connection effect can be achieved, the fixed connection effect can be achieved.

[0064] In some embodiments, the screwdriver bit further comprises a connecting rod 100 for connecting with a driving motor, the connecting rod 100 having a first connecting end 1001 and a second connecting end 1002; the first connecting end 1001 of the connecting rod 100 is sleeved on the second bit end 102 of the bit body 10, and the second connecting end 1002 of the connecting rod 100 is used for connecting with the driving motor. One end of the spring is welded and fixed to the second end 202 of the first sleeve 20, and the other end of the spring is welded and fixed to the first connecting end 1001 of the connecting rod 100; such a connection mode indirectly fixes the elastic member 30 on the bit body 10 through the connecting rod 100.

[0065] In some embodiments, the inner wall surface of the first sleeve 20 and the outer wall surface of the bit body 10 are in abutment and sliding fit with each other. It can be understood that the outer diameter of the first sleeve 20 needs to be adapted to the space of the workpiece to be locked, and therefore the outer diameter of the first sleeve 20 needs to be reduced as much as possible.

[0066] In some embodiments, the bit head 103 of the bit body 10 is located in the first end 201 of the first sleeve 20, and when the screw 80 is adsorbed to the bit head 103 of the bit body 10, the screw head 801 of the screw 80 is located in the first end 201 of the first sleeve 20. It can be understood that when the screw 80 is adsorbed to the bit head 103 of the bit body 10, the screw head 801 of the screw 80 is located in the first end 201 of the first sleeve 20, which has better adsorption effect and facilitates the locking work of the screw 80.

[0067] In some embodiments, the outer diameter of the first end 201 of the first sleeve 20 is 1mm larger than the diameter of the screw head 801. It can be understood that the outer diameter of the first end 201 of the first sleeve 20 needs to be adapted to the space of the workpiece to be locked, and therefore the smaller the outer diameter of the first end 201 of the first sleeve 20, the more the space limitation of the workpiece to be locked can be avoided.

[0068] The working process of the screwdriver bit provided in the embodiments of the present application is as follows: when the screw 80 is adsorbed to the bit main body 10 and the locking operation of the screw 80 is performed, the bit main body 10 with the screw 80 is slightly pressed against the threaded hole of the product to which the screw 80 needs to be locked, the bit main body 10 is rotated by the motor, and the thread of the screw 80 is continuously screwed into the threaded hole of the product. When the screw 80 is adsorbed by the magnetic member 60 and cooperates with the tool bit 103 of the bit main body 10, the thread of the screw 80 is at least partially located in the first end portion 201 of the first sleeve 20. During the screwing process of the thread of the screw 80, the first end portion 201 of the first sleeve 20 is in contact with the assembly surface of the product to which the screw 80 needs to be locked. Under the action of the pressing force, the bit main body 10 slides downward relative to the first sleeve 20 until the thread of the screw 80 is completely screwed into the threaded hole of the product, and the locking of the screw 80 is completed. During the locking process of the screw 80, the elastic member 30 is compressed. After the locking of the screw 80 is completed, the bit main body 10 is lifted, and the first sleeve 20 returns to the original position under the elastic force of the elastic member 30. The next cycle of adsorbing the screw 80 for locking can be continuously repeated. The screwdriver bit provided in the embodiments of the present application can be used for locking the screw head 801 which protrudes from the assembly surface of the product, and can also be used for locking the screw head 801 which needs to be sunk into the assembly surface of the product.

[0069] In some embodiments, as shown in FIG. 1, the second bit end portion 102 of the bit main body 10 is further fixedly sleeved with a second sleeve 40. The second sleeve 40 is used for indirectly fixing the elastic member 30 on the bit main body 10. The second sleeve 40 has a third end portion 401 and a fourth end portion 402. Figures 2 to 4

[0070] One end of the elastic member 30 is in abutment with the second end portion 202 of the first sleeve 20, and the other end of the elastic member 30 is in abutment with the third end portion 401 of the second sleeve 40. It can be understood that the second sleeve 40 is arranged to be connected with the elastic member 30.

[0071] In some embodiments, the elastic member 30 is welded to the second bit end portion 102 of the bit main body 10. The fixing mode of the elastic member 30 in the present application is not limited to this, as long as the elastic member 30 can be fixed and the effect of fixing the elastic member 30 on the second bit end portion 102 of the bit main body 10 can be achieved.

[0072] In some embodiments, the second sleeve 40 is provided with at least one threaded hole.

[0073] ​Also included is a screw 90 disposed in a threaded hole on the second sleeve 40 for fixing the second sleeve 40 to the bit body 10. Herein, only as an example, the present application is not limited thereto, in addition to being fixed by the screw 90, other detachable connection modes can also be used for connection, as long as detachable connection can be achieved.

[0074] In some embodiments, as shown in Figures 5 to 7 The screwdriver bit further includes a third sleeve 50, the third sleeve 50 has a fifth end 501 and a sixth end 502;

[0075] The sixth end 502 of the third sleeve 50 is fixedly sleeved on the third end 401 of the second sleeve 40, and the fifth end 501 of the third sleeve 50 is sleeved on the second end 202 of the first sleeve 20;

[0076] The elastic member 30 is located in the third sleeve 50, and the second end 202 of the first sleeve 20 extends into the third sleeve 50 and abuts against the elastic member 30. It can be understood that the third sleeve 50 can more conveniently assemble the elastic member 30, and can also protect the elastic member 30.

[0077] In some embodiments, the second end 202 of the first sleeve 20 and the fifth end 501 of the third sleeve 50 are provided with limiting structures matched with each other to prevent the first sleeve 20 from falling off the third sleeve 50.

[0078] In some embodiments, the second end 202 of the first sleeve 20 and the fifth end 501 of the third sleeve 50 are connected through an embedded structure. Herein, only as an example, the present application is not limited thereto, in addition to being connected through the embedded structure, other installation modes that can limit each other can also be used for installation, as long as the first sleeve 20 can be prevented from falling off the third sleeve 50. It can be understood that after the screw 80 locking operation is completed, the bit body 10 is lifted, and since the second end 202 of the first sleeve 20 and the fifth end 501 of the third sleeve 50 are provided with limiting structures matched with each other, the second end 202 of the first sleeve 20 cannot fall off the fifth end 501 of the third sleeve 50, and the second end 202 of the first sleeve 20 can be hung on the fifth end 501 of the third sleeve 50.

[0079] In some embodiments, the third end 401 of the second sleeve 40 and the sixth end 502 of the third sleeve 50 are detachably connected. It can be understood that the third end 401 of the second sleeve 40 and the sixth end 502 of the third sleeve 50 are detachably connected in order to facilitate the assembly of the elastic member 30.

[0080] In some embodiments, the third end 401 of the second sleeve 40 has external threads, and the sixth end 502 of the third sleeve 50 has internal threads that mate with the external threads. Here, only as an example, the application is not limited thereto, in addition to the threaded connection, other detachable connection modes can also be used, as long as the detachable connection can be achieved.

[0081] In some embodiments, as shown in FIG. 2, the first sleeve 20 has a first sleeve portion 203 and a second sleeve portion 204. Figures 8 to 10

[0082] The first sleeve portion 203 cooperates with the bit body 10, and the second sleeve portion 204 is located at the first bit end 101 of the bit, and the inner diameter of the second sleeve portion 204 is greater than that of the first sleeve portion 203. It can be understood that when the nominal diameter of the suction screw 80 increases, the size of the tool bit 103 of the bit body 10 will also increase relatively, so the inner diameter of the second sleeve portion 204 of the first sleeve 20 needs to be greater than that of the first sleeve portion 203.

[0083] In some embodiments, the first sleeve portion 203 and the second sleeve portion 204 are detachably connected. It can be understood that the first sleeve portion 203 and the second sleeve portion 204 are detachably connected; first, it is convenient to install the first sleeve 20; second, it is convenient to select a second sleeve portion 204 of appropriate size to match the size of the first bit end 101 of the bit body 10.

[0084] In some embodiments, the first sleeve portion 203 and the second sleeve portion 204 are detachably connected. It can be understood that the first sleeve portion 203 and the second sleeve portion 204 are detachably connected; first, it is convenient to install the first sleeve 20; second, it is convenient to select a second sleeve portion 204 of appropriate size to match the size of the first bit end 101 of the bit body 10.

[0085] The above describes in detail a screw bit provided by the embodiments of the application, and the principles and implementation manners of the application are described by applying specific examples. The above description of the embodiments is only used to help understand the technical solutions of the application and the core ideas thereof; those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.​

Claims

1. A screwdriver bit, characterized in that, include: The bit body has a first bit end and a second bit end, wherein the first bit end has a cutting tip adapted to a screw; A first sleeve is fitted onto the bit body. The first sleeve has a first end and a second end. The first end of the first sleeve extends toward the first bit end of the bit body and at least fits the bit in the first sleeve. The second end of the first sleeve extends toward the second bit end of the bit body. An elastic element, one end of which abuts against the second end of the first sleeve, and the other end of which is indirectly or directly fixed to the second bit end of the bit body; The first end of the first sleeve is provided with a magnetic element; when the screw is attracted by the magnetic element and engages with the cutting head of the bit body, the screw thread is at least partially located inside the first end of the first sleeve.

2. The screwdriver bit as described in claim 1, characterized in that, The second end of the bit body is fixedly fitted with a second sleeve, the second sleeve having a third end and a fourth end; One end of the elastic element abuts against the second end of the first sleeve, and the other end of the elastic element abuts against the third end of the second sleeve.

3. The screwdriver bit as described in claim 2, characterized in that, The second sleeve is provided with at least one threaded hole; It also includes screws disposed in threaded holes on the second sleeve for securing the second sleeve to the bit body.

4. The screwdriver bit as described in claim 3, characterized in that, The screwdriver bit also includes a third sleeve, the third sleeve having a fifth end and a sixth end; The sixth end of the third sleeve is fixedly sleeved on the third end of the second sleeve, and the fifth end of the third sleeve is sleeved on the second end of the first sleeve; The elastic element is located inside the third sleeve, and the second end of the first sleeve extends into the third sleeve and abuts against the elastic element.

5. The screwdriver bit as described in claim 4, characterized in that, The second end of the first sleeve and the fifth end of the third sleeve are provided with mutually cooperating limiting structures to prevent the first sleeve from falling out of the third sleeve.

6. The screwdriver bit as described in claim 5, characterized in that, The third end of the second sleeve has an external thread, and the sixth end of the third sleeve has an internal thread that mates with the external thread.

7. The screwdriver bit as described in claim 1, characterized in that, The first sleeve has a first sleeve portion and a second sleeve portion; The first sleeve portion cooperates with the bit body, the second sleeve portion is located at the first bit end of the bit body, and the inner diameter of the second sleeve portion is larger than the inner diameter of the first sleeve portion.

8. The screwdriver bit as described in claim 7, characterized in that, The first sleeve portion and the second sleeve portion are detachably connected.

9. The screwdriver bit as described in any one of claims 1-8, characterized in that, The magnetic component includes a permanent magnet.

10. The screwdriver bit according to any one of claims 1-8, characterized in that, The elastic element includes a spring.

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