Multifunctional screwdriver bit

Abstract

The utility model relates to the technical field of screwdriver bits, and discloses a multifunctional screwdriver bit which comprises a handle and a connecting piece, the left end of the handle is fixedly connected with a triangular screwdriver, first clamping holes are formed in the upper side and the lower side of the outer portion of the handle, and a first lantern ring is fixedly connected to the middle of the outer portion of the handle. A universal joint structure is fixedly connected to the left side of the handle, a connecting handle is fixedly connected to the left end of the universal joint structure, a cross screwdriver is fixedly connected to the left end of the connecting handle, second clamping holes are formed in the upper side and the lower side of the outer portion of the connecting handle, and a second lantern ring is fixedly connected to the middle of the outer portion of the connecting handle; connecting plates are fixedly connected to the upper side and the lower side of the left side of the connecting piece. According to the screwdriver, different types of screwdriver heads can be rapidly replaced for use, the length of the screwdriver heads can be increased, the screwdriver heads can be rotated at multiple angles for use, the handle and the connecting handle are prevented from rotating accidentally, and the stability of the screwdriver heads in the conversion use process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screwdriver bits, in particular to a multifunctional bit. Background Technique

[0002] A bit generally refers to a screwdriver bit installed on a power drill or a hammer drill to tighten screws; an electric bit is an electric screwdriver used to tighten or loosen screws. The existing bits generally include flat, cross, star, square, hexagonal, etc. The flat or cross bits are commonly used in daily life; in professional technical fields, the bits are usually set to be immediately replaceable for convenient work. In the existing bit technology, the bit and the screwdriver handle are usually directly installed through a mounting seat. In order to make the bit have higher practicability, there are also products with bit connectors provided in the bit.

[0003] After retrieval, a Chinese patent with the publication number of CN214081167U discloses a multifunctional bit, which relates to the technical field of screwdriver bits, and includes a connector, a screwdriver bit and a handle; the screwdriver bit includes four types: flat screwdriver, cross screwdriver, hexagonal screwdriver and triangular screwdriver; a screwdriver mounting convex block is provided at one end of the screwdriver bit, and the screwdriver mounting convex block cooperates with the connector and the handle; the connector includes a screwdriver connecting part and a handle connecting part, a screwdriver mounting is provided on the screwdriver connecting part, and a convex block is provided at the other end of the screwdriver connecting part. A handle connecting convex block and a convex block are provided on the handle connecting part, and the convex blocks on the screwdriver connecting part and the handle connecting part are both connected to a universal joint structure. The convex block on the universal joint structure is connected to the convex block on the screwdriver connecting part through a first connecting pin, and the convex block on the handle connecting part is connected to the universal joint structure through a second connecting pin. The connector in the utility model adopts a universal joint structure, which is convenient for completing the final tightening of the screw when there is an obstacle above the screw.

[0004] In the above-mentioned patent working principle, it is mentioned that "it is possible to directly connect the handle 20 to the screwdriver bit 30, and the screwdriver mounting bump 301 provided on the screwdriver bit 30 is directly fitted and installed with the handle 20 to tighten and loosen the screw; when the length of the screwdriver bit 30 is insufficient, a connecting piece 10 can be connected between the handle 20 and the screwdriver bit 30. Since the universal joint structure 13 is tightly connected to both the screwdriver connecting part 11 and the handle connecting part 15, it is not easy to bend when the connecting piece 10 is used as an extended screwdriver bit; when there is an obstacle above the screw, the bending of the connecting piece 10 can be utilized to complete the tightening and loosening of the screw during the process of tightening and loosening the screw." However, in the above document, since the universal joint structure is tightly connected to both the screwdriver connecting part and the handle connecting part, it is easy to loosen after long-term use, resulting in easy bending. And because the mounting bump is directly fitted and installed with the handle, if the screwdriver bit needs to be frequently replaced, the replacement is cumbersome. To solve the above problems, a multi-functional bit is proposed to solve the above problems. Summary of the Utility Model

[0005] The purpose of the present utility model is to solve the disadvantages existing in the prior art, and a multi-functional bit is proposed, aiming to improve the problems that the universal joint structure is easy to bend after long-term use and the operation is cumbersome in the case of frequently replacing the screwdriver bit in the prior art.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] A multi-functional bit, including a handle and a connecting piece. A triangular screwdriver is fixedly connected to the left end of the handle. Card holes one are opened on both the upper and lower sides of the outer part of the handle. A collar one is fixedly connected to the middle of the outer part of the handle. A universal joint structure is fixedly connected to the left side of the handle. A connecting handle is fixedly connected to the left end of the universal joint structure. A cross screwdriver is fixedly connected to the left end of the connecting handle. Card holes two are opened on both the upper and lower sides of the outer part of the connecting handle. A collar two is fixedly connected to the middle of the outer part of the connecting handle. Connecting plates are fixedly connected to both the upper and lower sides of the left side of the connecting piece. A through hole is opened in the middle of the right end of the connecting plate. A rotating shaft is rotatably connected to the middle of the through hole. Grooves are opened in the middle of both the upper and lower sides of the rotating shaft. A limiting component is fixedly connected to the inside of the groove;

[0008] As a further description of the above technical solution:

[0009] The limiting component includes a limiting block, an L-shaped block, a clamping member and a spring. Both the front and rear sides of the limiting block are fixedly connected to the inner wall of the groove. The middle part of the side of the L-shaped block close to the handle is rotatably connected to the outside of the limiting block. The right side of the clamping member is fixedly connected to the left end of the L-shaped block. The end of the spring close to the handle is fixedly connected to the left end of the side of the L-shaped block away from the handle;

[0010] As a further description of the above technical solution:

[0011] On the far - away sides of the two connecting plates, there are sliding grooves, inside which a clamping strip is slidably connected. On the side of the clamping strip away from the connecting plate, a support ring is fixedly connected.

[0012] As a further description of the above technical solution:

[0013] The second collar is slidably connected to the inner wall of the connecting plate, and the handle is slidably connected to the inner wall of the rotating shaft.

[0014] As a further description of the above technical solution:

[0015] The outside of the L - shaped block is slidably connected to the inner wall of the groove, and the outside of the clamping part is slidably connected to the inner wall of the groove.

[0016] As a further description of the above technical solution:

[0017] One end of the spring away from the clamping part is fixedly connected to the side of the inner wall of the groove away from the handle, and the outside of the clamping part is engaged with the inner wall of the first clamping hole.

[0018] As a further description of the above technical solution:

[0019] The second collar slides on the inner wall of the rotating shaft, and the outside of the clamping part is engaged with the inner wall of the second clamping hole.

[0020] As a further description of the above technical solution:

[0021] The inner wall of the support ring is slidably connected to the outside of the two connecting plates. The support ring is sleeved on the outside of the handle and the support ring is sleeved on the outside of the connecting handle.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by pressing the L - shaped block to drive the clamping part to engage with the first clamping hole on the handle or the second clamping hole on the connecting handle, and then rotating the rotating shaft, it can quickly replace different types of bit heads for use, and can increase the length of the bit head and can rotate the bit head at multiple angles for use.

[0024] 2. In the utility model, sliding the support ring drives the clamping strip to slide on the inner wall of the sliding groove, realizing the fixation of the support ring on the handle and the connecting handle, preventing the handle and the connecting handle from accidentally rotating, and increasing the stability when the bit head is switched for use. Description of the Drawings

[0025] Figure 1 It is a three - dimensional view of a multi - functional bit head proposed by the utility model.

[0026] Figure 2 Schematic structural diagram of a triangular screwdriver with a multi-functional bit proposed by the present utility model;

[0027] Figure 3 Schematic structural diagram of a support ring of a multi-functional bit proposed by the present utility model;

[0028] Figure 4 Schematic structural diagram of a clamping member of a multi-functional bit proposed by the present utility model;

[0029] Figure 5 Exploded view of a chute of a multi-functional bit proposed by the present utility model.

[0030] Legend:

[0031] 1. Handle; 2. Triangular screwdriver; 3. First clamping hole; 4. First collar; 5. Universal joint structure; 6. Handle connecting part; 7. Phillips screwdriver; 8. Second clamping hole; 9. Second collar; 10. Connecting piece; 11. Connecting plate; 12. Through hole; 13. Rotating shaft; 14. Groove; 15. Limiting block; 16. L-shaped block; 17. Clamping member; 18. Spring; 19. Chute; 20. Clamping strip; 21. Support ring. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Refer to Figures 1 - 3 , an embodiment provided by the present utility model: A multi-functional bit includes a handle 1 and a connecting piece 10. The left end of the handle 1 is fixedly connected with a triangular screwdriver 2. The handle 1 and the triangular screwdriver 2 are fixedly connected for installation. The triangular screwdriver 2 is detachable, and different types of triangular screwdrivers 2 can be replaced on the handle 1 for use. First clamping holes 3 are opened on both the upper and lower sides of the outside of the handle 1. The design of the first clamping holes 3 is for fixing the handle 1. A first collar 4 is fixedly connected to the middle of the outside of the handle 1. The design of the first collar 4 is for preventing the handle 1 from disengaging from the inside of the fixing component.

[0034] On the left side of the handle 1, a universal joint structure 5 is fixedly connected. The universal joint structure 5 can rotate in multiple directions and is tightly connected to both the connecting handle 6 and the handle 1, so the universal joint structure 5 is not likely to become loose. At the left end of the universal joint structure 5, a connecting handle 6 is fixedly connected. At the left end of the connecting handle 6, a cross screwdriver 7 is fixedly connected. The connecting handle 6, the cross screwdriver 7, the handle 1, and the triangular screwdriver 2 are all fixedly connected for installation. Different cross screwdrivers 7 can be replaced for use. At the same time, it is convenient for users to quickly replace different types of bit heads for insertion work, reducing the frequency of replacing bit heads. On the upper and lower sides of the outside of the connecting handle 6, second clamping holes 8 are provided. The second clamping holes 8 are for fixing the connecting handle 6. In the middle of the outside of the connecting handle 6, a second collar 9 is fixedly connected. The design of the second collar 9 is to prevent the connecting handle 6 from detaching from the inner wall of the fixing component.

[0035] Reference Figure 3 , on the upper and lower sides of the left side of the connecting piece 10, connecting plates 11 are fixedly connected. In the middle of the right end of the connecting plate 11, a through hole 12 is provided. In the middle of the through hole 12, a rotating shaft 13 is rotatably connected. The connecting plate 11 can be directly installed on a hammer drill or an electric drill. In the middle of the upper and lower sides of the rotating shaft 13, grooves 14 are provided. The connecting plate 11 fixes the through hole 12, and the grooves 14 in the middle of the through hole 12 limit the rotation range of the rotating shaft 13. Inside the grooves 14, a limiting component is fixedly connected to limit whether the rotating shaft 13 is fixed on the first clamping hole 3 of the handle 1 or the second clamping hole 8 of the connecting handle 6. The second collar 9 is slidably connected to the inner wall of the connecting plate 11, the handle 1 is slidably connected to the inner wall of the rotating shaft 13, and the second collar 9 slides on the inner wall of the rotating shaft 13. Such a design is to prevent the handle 1 and the connecting handle 6 from detaching from the ring opening of the rotating shaft 13.

[0036] Reference Figure 1 , Figure 4 , the limiting component includes a limiting block 15, an L-shaped block 16, a clamping part 17, and a spring 18. On the front and rear sides of the limiting block 15, it is fixedly connected to the inner wall of the groove 14. On the middle part of the side of the L-shaped block 16 close to the handle 1, it is rotatably connected to the outside of the limiting block 15. The outside of the L-shaped block 16 is slidably connected to the inner wall of the groove 14. The middle position of the fold angle of the L-shaped block 16 rotates on the outside of the limiting block 15 and slides on the inner wall of the groove 14. The L-shaped block 16 rotates around the limiting block 15.

[0037] The right side of the card component 17 is fixedly connected to the left end of the L-shaped block 16. The outer part of the card component 17 is slidably connected to the inner wall of the groove 14. The L-shaped block 16 drives the card component 17 to rotate and slide on the inner wall of the groove 14. The outer part of the card component 17 is engaged with the inner wall of the second card hole 8. By moving the position of the rotating shaft 13, it can be selected that the card component 17 is engaged with the first card hole 3 of the handle 1 or the second card hole 8 of the connecting handle 6. After being engaged with the second card hole 8 of the connecting handle 6, the user can use the triangular screwdriver 2 of the handle 1. After being engaged with the second card hole 8 of the connecting handle 6, the handle 1 and the universal joint structure 5 will extend within the range of the connecting plate 11, thereby increasing the length of the handle 1. And the triangular screwdriver 2 can be installed and disassembled the bolt by rotating at multiple angles through the universal joint structure 5. After rotating the rotating shaft 13, the positions of the handle 1 and the connecting handle 6 are reversed. At this time, if the triangular screwdriver 2 of the handle 1 is selected, the length of the connecting handle 6 is increased. On the contrary, after being engaged with the second card hole 8, the length of the connecting handle 6 is reduced.

[0038] The outer part of the card component 17 is engaged with the inner wall of the first card hole 3. One end of the spring 18 close to the handle 1 is fixedly connected to the left end of the side of the L-shaped block 16 away from the handle 1. The end of the spring 18 away from the card component 17 is fixedly connected to the inner wall of the groove 14 on the side away from the handle 1. One end of the spring 18 drives the L-shaped block 16 with the inner wall of the groove 14 as a fulcrum to push the card component 17 to be firmly engaged with the triangular screwdriver 2 or the second card hole 8 to fix the handle 1 or the connecting handle 6.

[0039] Reference Figure 3 、 Figure 5 On the far sides of the two connecting plates 11, a sliding groove 19 is provided. A card strip 20 is slidably connected inside the sliding groove 19. One side of the card strip 20 away from the connecting plate 11 is fixedly connected to a support ring 21. The inner wall of the support ring 21 is slidably connected to the outside of the two connecting plates 11. The support ring 21 is sleeved on the outside of the handle 1. The support ring 21 is sleeved on the outside of the connecting handle 6. By sliding and adjusting the position of the support ring 21 in the sliding groove 19, the connecting handle 6 or the handle 1 can be fixed to prevent the rotating shaft 13 from driving the handle 1 or the connecting handle 6 to rotate.

[0040] Working principle: Since the triangular screwdriver 2 and the handle 1, the connecting handle 6 and the cross screwdriver 7 are all assembled and fixed, the triangular screwdriver 2 and the cross screwdriver 7 can both be replaced with different types of screw bits. When in use, the triangular screwdriver 2 can be used to remove screws. When the cross screwdriver 7 is needed, the sliding clamping strip 20 and the supporting ring 21 can be moved in the slide groove 19 to the position of the connecting member 10. At this time, the handle 1 and the connecting handle 6 that are restricted and fixed in the rotating shaft 13 can be driven to exchange positions by rotating the rotating shaft 13. After the position exchange is completed, the user can use the cross screwdriver 7 fixed by the connecting handle 6 to remove and install the bolts corresponding to the cross screwdriver 7. Because the handle 1 is fixed inside the rotating shaft 13, and when the connecting handle 6 and the handle 1 are exchanged, the position of the universal joint structure 5 is separated from the middle part of the connecting plate 11. Therefore, at this time, the connecting handle 6 can be bent in multiple directions through the action of the universal joint structure 5 to remove and install bolts at different positions.

[0041] If the user only needs to use the cross screwdriver 7 on the connecting handle 6 in a straight line, the user can bend the L-shaped block 16 to allow the L-shaped block 16 to rotate around the limit block 15, so that the L-shaped block 16 can be rotated to disengage from the engagement with the first hole 3 of the handle 1. At this time, the handle 1 can be pulled to slide to align the second hole 8 on the connecting handle 6 with the clamp 17. At this time, the L-shaped block 16 is released to allow the elastic force of the spring 18 fixed on the L-shaped block 16 to drive the clamp 17 to reset and engage with the second hole 8 of the connecting handle 6. At this time, the universal joint structure 5 has moved to the position of the connecting plate 11. Finally, the sliding clamping strip 20 and the support ring 21 are reset to the position of the universal joint structure 5 to limit the angle of the connecting handle 6 to prevent it from accidentally rotating. When the triangular screwdriver 2 of the handle 1 needs to be used, it only needs to be rotated in the same way.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-functional bit, comprising a handle (1) and a connecting member (10), characterized in that: The left end of the handle (1) is fixedly connected to a triangular screwdriver (2). On the upper and lower sides of the outside of the handle (1), first clamping holes (3) are provided. In the middle of the outside of the handle (1), a first collar (4) is fixedly connected. On the left side of the handle (1), a universal joint structure (5) is fixedly connected. The left end of the universal joint structure (5) is fixedly connected to a connecting handle (6). The left end of the connecting handle (6) is fixedly connected to a cross screwdriver (7). On the upper and lower sides of the outside of the connecting handle (6), second clamping holes (8) are provided. In the middle of the outside of the connecting handle (6), a second collar (9) is fixedly connected. On the upper and lower sides of the left side of the connecting member (10), connecting plates (11) are fixedly connected. In the middle of the right end of the connecting plate (11), a through hole (12) is provided. In the middle of the through hole (12), a rotating shaft (13) is rotatably connected. In the middle of the upper and lower sides of the rotating shaft (13), grooves (14) are provided. Inside the grooves (14), a limiting component is fixedly connected.

2. The multifunctional bit according to claim 1, wherein: The limiting component includes a limiting block (15), an L-shaped block (16), a clamping member (17) and a spring (18). On the front and rear sides of the limiting block (15), it is fixedly connected to the inner wall of the groove (14). On the middle part of the side of the L-shaped block (16) close to the handle (1), it is rotatably connected to the outside of the limiting block (15). On the left end of the right side of the clamping member (17), it is fixedly connected to the L-shaped block (16). On the left end of the side of the spring (18) far from the handle (1), it is fixedly connected to the L-shaped block (16).

3. The multifunctional bit according to claim 1, characterized in that: On the opposite sides of the two connecting plates (11), sliding grooves (19) are provided. Inside the sliding grooves (19), a clamping strip (20) is slidably connected. On the side of the clamping strip (20) far from the connecting plate (11), a support ring (21) is fixedly connected.

4. A multi-functional bit according to claim 1, characterized in that: The second collar (9) is slidably connected to the inner wall of the connecting plate (11), and the handle (1) is slidably connected to the inner wall of the rotating shaft (13).

5. A multi-functional bit according to claim 2, characterized in that: The outside of the L-shaped block (16) is slidably connected to the inner wall of the groove (14), and the outside of the clamping member (17) is slidably connected to the inner wall of the groove (14).

6. A multi-functional bit according to claim 2, characterized in that: On the side of the inner wall of the groove (14) far from the handle (1), the end of the spring (18) far from the clamping member (17) is fixedly connected, and the outside of the clamping member (17) is engaged with the inner wall of the first clamping hole (3).

7. A multi-functional bit according to claim 2, characterized in that: The second collar (9) slides on the inner wall of the rotating shaft (13), and the outside of the clamping member (17) is engaged with the inner wall of the second clamping hole (8).

8. The multifunctional bit according to claim 3, wherein: The inner wall of the support ring (21) is slidably connected to the outside of the two connecting plates (11). The support ring (21) is sleeved on the outside of the handle (1), and the support ring (21) is sleeved on the outside of the connecting handle (6).

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