Screwdriver with end protection function

Abstract

The utility model belongs to the technical field of screwdrivers, and particularly relates to a screwdriver with an end protection function, which comprises a screwdriver body formed by fixedly connecting a screwdriver handle and a screwdriver rod, a plurality of anti-skidding grooves distributed at equal intervals in the circumferential direction are formed in the outer wall of the screwdriver handle, and the screwdriver further comprises a protection mechanism. The protective sleeve is arranged on the cutter bar in a sleeving mode and can freely move in the length direction of the cutter bar. According to the screwdriver, the end of the screwdriver rod is safely protected through the arranged protective sleeve, the protective sleeve can move automatically, manual operation is not needed, use is more convenient and faster, normal use of the screwdriver cannot be affected, and the problem that the protective effect is affected due to the fact that a user forgets the screwdriver is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screwdrivers, and in particular relates to a screwdriver with an end protection function. Background Art

[0002] A screwdriver is a common tool used to turn screws into place. It usually has a thin wedge-shaped head that can be inserted into the slot or notch of the screw head. The screwdriver uses the working principle of the wheel and axle when used to tighten the screw. The larger the wheel, the less effort it takes, so using a screwdriver with a thick handle is more labor-saving than using a screwdriver with a thin handle. The tip of the screwdriver is the key part for tightening the screw.

[0003] At present, whether it is an integrated screwdriver or a split screwdriver, the screwdriver end is exposed to the external environment. Due to the lack of necessary protective measures, the screwdriver end is easily damaged due to accidental falling or being affected by other external objects, thereby affecting the use effect of the screwdriver.

[0004] Based on the above technical problems, it was retrieved that in the prior art, a Chinese utility model patent with authorization announcement number CN220179182U discloses "a screwdriver with end protection function", including a screwdriver handle, a hand-held handle is provided at one end of the screwdriver handle, mounting grooves are provided inside both ends of the hand-held handle, anti-slip pads are installed inside the mounting grooves, a hexagonal mounting groove is provided inside one end of the screwdriver handle, a retractable protection groove is provided at one end of the hexagonal mounting groove, a limit stopper is installed on one side of the screwdriver handle, a hexagonal mounting seat 1 is provided at one end of the limit stopper, a hexagonal mounting seat 2 is provided at the other end of the limit stopper, a connecting arbor is provided at one end of the hexagonal mounting seat 2, a wedge-shaped head is provided at one end of the connecting arbor, and the connecting arbor and the wedge head are protected.

[0005] Although some screwdrivers of the prior art including the above-mentioned ones can protect the end by changing the installation direction of the shank, the shank needs to be disassembled and reassembled before and after each use, which greatly reduces the convenience of using the screwdriver, and when the user forgets to change the installation direction of the shank, the end cannot be reliably protected.

[0006] In order to solve the above problems, the present application proposes a screwdriver with a terminal protection function. Utility Model Content

[0007] In order to solve the above problems existing in the prior art, the utility model provides a screwdriver with an end protection function, which is easy to use and has good protection effect.

[0008] To achieve the above object, the utility model provides the following technical solution: a screwdriver with end protection function, comprising a screwdriver composed of a handle and a shank fixedly connected to form the screwdriver, and the outer wall of the handle has a plurality of anti-slip grooves distributed at equal intervals along the circumferential direction, and also includes a protection mechanism, and the protection mechanism includes:

[0009] A protective sleeve is sleeved on the knife rod and can move freely along the length direction of the knife rod.

[0010] As a preferred technical solution of the utility model, the protection mechanism also includes:

[0011] A fixing ring, wherein the fixing ring is fixed on the knife bar;

[0012] A mounting rod, the mounting rod is fixed to the end of the protective sleeve and passes through the fixing ring, and a limit plate is fixed on the protruding end of the mounting rod;

[0013] A return spring is sleeved on the mounting rod and is located between the protective sleeve and the fixing ring.

[0014] As a preferred technical solution of the utility model, a plurality of the mounting rods are evenly spaced along the circumferential direction.

[0015] As a preferred technical solution of the utility model, the protection mechanism also includes:

[0016] Elastic sheets, a plurality of which are fixed on the fixing ring at equal intervals along the circumferential direction;

[0017] A locking piece is sleeved on the elastic sheet and fastens the elastic sheet to the knife rod.

[0018] As a preferred technical solution of the utility model, the locking piece is a throat clamp.

[0019] As a preferred technical solution of the utility model, it also includes:

[0020] A strong magnetic ring is fixed on the protective sleeve at a position close to the end of the knife rod.

[0021] As a preferred technical solution of the utility model, an installation groove is provided on the inner wall of the protective sleeve, and the strong magnetic ring is fixed in the installation groove.

[0022] As a preferred technical solution of the utility model, it also includes:

[0023] A polygonal plug-in rod is fixed to the rear end of the knife rod, and a polygonal plug-in groove is provided in the knife handle for the polygonal plug-in rod to be embedded.

[0024] As a preferred technical solution of the utility model, it also includes:

[0025] A first magnetic sheet, the first magnetic sheet being fixed in the polygonal plug-in slot;

[0026] A second magnetic attraction sheet is fixed to the end of the polygonal plug-in rod and is attracted to the first magnetic attraction sheet.

[0027] As a preferred technical solution of the utility model, it also includes:

[0028] A flexible limiting ring is fixed to the inner wall of the polygonal plug-in slot, and a limiting slot for the flexible limiting ring to be embedded is provided on the polygonal plug-in rod.

[0029] Compared with the prior art, the beneficial effects of the utility model are:

[0030] In the utility model, the end of the tool rod is safely protected by the protective cover, which can move automatically without manual operation, and is more convenient to use. It will not affect the normal use of the screwdriver and also avoids the problem of the protective effect being affected due to the user forgetting.

[0031] Other additional advantages and beneficial effects of the present application will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0033] Figure 1 It is a schematic diagram of the structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the axonometric structure of the protection mechanism in the utility model;

[0035] Figure 3 It is a schematic diagram of the cross-sectional structure of the protection mechanism in the utility model;

[0036] Figure 4 This is a schematic diagram of the axonometric structure of the locking member in the utility model;

[0037] Figure 5 It is a schematic diagram of the cross-sectional structure of the connection node between the knife handle and the knife rod in the utility model.

[0038] In the figure: 1. knife handle; 11. anti-slip groove; 12. polygonal plug-in groove; 121. No. 1 magnetic sheet; 122. flexible limiting ring; 2. knife rod; 21. polygonal plug-in rod; 211. No. 2 magnetic sheet; 212. limiting groove; 3. protective mechanism; 31. fixing ring; 311. elastic sheet; 32. protective sleeve; 321. mounting groove; 33. mounting rod; 331. limiting plate; 34. reset spring; 35. locking piece; 351. throat clamp; 36. strong magnetic ring. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] See also Figure 1-Figure 5 The utility model provides the following technical solutions: a screwdriver with end protection function, including a screwdriver composed of a handle 1 and a shank 2 fixedly connected, and the outer wall of the handle 1 has a plurality of anti-slip grooves 11 evenly spaced along the circumferential direction, and also includes a protection mechanism 3, and the protection mechanism 3 includes: a protective sleeve 32.

[0041] Further, by Figure 1 and Figure 2 As shown, in this embodiment, the protective cover 32 is sleeved on the shank 2 and can move freely along the length direction of the shank 2. After adopting the above scheme, when in use, the end of the shank 2 is inserted into the slot or recess of the screw head and twisted. At this time, the protective cover 32 naturally moves up to avoid it, ensuring the reliability of use. When idle, the protective cover 32 naturally slides down to protect the end of the shank 2. No manual operation is required, and it is more convenient to use. It will not affect the normal use of the screwdriver, and it also avoids the problem of affecting the protection effect due to user forgetfulness.

[0042] Optionally, by Figure 1 and Figure 2As shown, in this embodiment, the protection mechanism 3 also includes: a fixing ring 31, a mounting rod 33 and a reset spring 34. The fixing ring 31 is fixed on the knife rod 2, the mounting rod 33 is fixed on the end of the protective sleeve 32 and passes through the fixing ring 31, and a limit plate 331 is fixed on the protruding end of the mounting rod 33. The reset spring 34 is sleeved on the mounting rod 33 and is located between the protective sleeve 32 and the fixing ring 31. After adopting the above scheme, when the end of the knife rod 2 is inserted into the slot or recess of the screw head, the protective sleeve 32 naturally moves up. At this time, the reset spring 34 is in a contracted state. When idle, the reset spring 34 releases the elastic force to make the protective sleeve 32 naturally slide and reset, thereby protecting the end of the knife rod 2 without manual operation. The limit plate 331 is used to limit the moving range of the protective sleeve 32.

[0043] It is worth noting that the above solution is only an exemplary solution of the present invention and is not used to limit the present invention. In addition, the above solution is based on the situation that the protective sleeve 32 is made of hard material.

[0044] In other available embodiments, the protective sleeve 32 can also be made of a flexible material, such as rubber. When the protective sleeve 32 is made of rubber, the protective sleeve 32 can be fixed to the position near the end of the knife rod 2 by conventional means, and there is no need to make the protective sleeve 32 movable. Because the rubber material is flexible, when the end of the knife rod 2 is inserted into the slot or recess of the screw head, the protective sleeve 32 can produce elastic deformation to avoid it, thereby ensuring reliability of use. When idle, the protective sleeve 32 can recover by itself to protect the end of the knife rod 2.

[0045] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, a plurality of mounting rods 33 are evenly spaced along the circumferential direction. By providing a plurality of mounting rods 33 , the protective sleeve 32 is guided to ensure the stability of the protective sleeve 32 and prevent the protective sleeve 32 from accidentally rotating.

[0046] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, the protection mechanism 3 also includes: an elastic sheet 311 and a locking piece 35. A plurality of elastic sheets 311 are fixed on the fixing ring 31 at equal intervals along the circumferential direction. The locking piece 35 is sleeved on the elastic sheet 311, and the elastic sheet 311 is fastened to the knife rod 2. After adopting the above scheme, the locking piece 35 locks the elastic sheet 311 to fit tightly against the knife rod 2, and the fixing ring 31 is stably installed on the knife rod 2.

[0047] It should be noted that the above scheme is only a preferred implementation scheme of the present invention and is not used to limit the present invention. In actual use, other conventional means can be used to install and fix the fixing ring 31, such as fixing with bolts, welding, etc. The present invention uses a locking member 35 for fixing, which has the advantage of convenient disassembly and assembly, and the installation position of the fixing ring 31 can be adjusted according to actual needs.

[0048] Optionally, by Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the locking member 35 is a throat clamp 351, and the throat clamp 351 is a conventional fastener purchased on the market or customized. Its working principle is the existing technology that has been fully disclosed on the market and will not be described in detail herein. The utility model installs and fixes the fixing ring 31 through the throat clamp 351, which has the advantage of convenient disassembly and assembly, and the installation position of the fixing ring 31 can be adjusted according to actual needs.

[0049] It should be noted that the above scheme is only a preferred implementation scheme of the present invention and is not used to limit the present invention. In actual use, in addition to the throat clamp 351, other means can also be used to achieve the same effect, such as using steel wire or rope components to tighten the elastic sheet 311.

[0050] Preferably, by Figure 1-Figure 3 As shown, in this embodiment, it also includes: a strong magnetic ring 36, which is fixed on the protective sleeve 32 near the end of the knife rod 2. After adopting the above solution, the screws can be adsorbed by the strong magnetic ring 36, which is easy to operate and avoids the problem of smaller screws being lost.

[0051] Optionally, by Figure 1-Figure 3 As shown, in this embodiment, a mounting groove 321 is provided on the inner wall of the protective sleeve 32, and the strong magnetic ring 36 is fixed in the mounting groove 321. The strong magnetic ring 36 can be fixed in the mounting groove 321 by conventional means such as bonding.

[0052] It should be noted that the above solution is only an exemplary solution of the present invention and is not used to limit the present invention. In actual use, the strong magnetic ring 36 can also be fixed on the outer wall or end face of the protective sleeve 32 to produce the same effect.

[0053] Preferably, by Figure 1 and Figure 5 As shown, in this embodiment, it also includes: a polygonal plug-in rod 21, which is fixed to the rear end of the knife rod 2, and a polygonal plug-in groove 12 is provided in the knife handle 1 for the polygonal plug-in rod 21 to be embedded. After adopting the above scheme, the utility model adopts a plug-in method to combine and install the knife handle 1 and the knife rod 2, which is convenient to install and also convenient to replace different types of knife rods 2 according to actual usage needs.

[0054] Preferably, by Figure 1 and Figure 5 As shown, in this embodiment, it also includes: a No. 1 magnetic sheet 121 and a No. 2 magnetic sheet 211. The No. 1 magnetic sheet 121 is fixed in the polygonal plug-in slot 12, and the No. 2 magnetic sheet 211 is fixed to the end of the polygonal plug-in rod 21 and is attracted to the No. 1 magnetic sheet 121. After adopting the above scheme, when the polygonal plug-in rod 21 is embedded in the polygonal plug-in slot 12, the No. 1 magnetic sheet 121 and the No. 2 magnetic sheet 211 are attracted to each other, thereby ensuring the stability of the combination of the knife handle 1 and the knife rod 2 and preventing the knife rod 2 from accidentally falling.

[0055] Preferably, by Figure 1 and Figure 5 As shown, in this embodiment, it also includes: a flexible limiting ring 122, the flexible limiting ring 122 is fixed to the inner wall of the polygonal plug-in groove 12, and a limiting groove 212 is provided on the polygonal plug-in rod 21 for the flexible limiting ring 122 to be embedded. In this embodiment, the flexible limiting ring 122 includes but is not limited to the use of rubber material. After adopting the above scheme, when the polygonal plug-in rod 21 is embedded in the polygonal plug-in groove 12, the flexible limiting ring 122 is embedded in the limiting groove 212, which further stabilizes the tool rod 2, ensures the stability of the combination of the tool handle 1 and the tool rod 2, and prevents the tool rod 2 from accidentally falling.

[0056] Components not described in detail herein are prior art.

[0057] Working principle and use process of the utility model: The use method of the screwdriver of the utility model is the same as that of other screwdrivers on the market. The user controls the screwdriver by holding the handle 1 and inserts the end of the handle 2 into the slot or notch of the screw head to twist the screw;

[0058] The protective sleeve 32 is provided to provide safety protection for the end of the knife rod 2 to prevent damage caused by accidental falling or being affected by other external objects;

[0059] In the present invention, when the end of the shank 2 is inserted into the slot or notch of the screw head, the protective cover 32 moves up naturally, and the reset spring 34 is in a contracted state at this time. When idle, the reset spring 34 releases the elastic force to make the protective cover 32 slide down and reset naturally, thereby protecting the end of the shank 2. No manual operation is required, and the use is more convenient, which will not affect the normal use of the screwdriver and avoid the problem of affecting the protection effect due to the user's forgetfulness.

[0060] The utility model adopts a plug-in method to combine and install the knife handle 1 and the knife rod 2, which is convenient to install and also convenient to replace different types of knife rods 2 according to actual use needs.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A screwdriver with an end protection function, comprising a handle (1) and a shank (2) fixedly connected to form the screwdriver, and the outer wall of the handle (1) has a plurality of anti-slip grooves (11) distributed at equal intervals along the circumferential direction, characterized in that: The invention also comprises a protection mechanism (3), wherein the protection mechanism (3) comprises: A protective sleeve (32), wherein the protective sleeve (32) is sleeved on the knife rod (2) and can move freely along the length direction of the knife rod (2).

2. A screwdriver with end protection function according to claim 1, characterized in that: The protection mechanism (3) further comprises: A fixing ring (31), wherein the fixing ring (31) is fixed on the knife rod (2); A mounting rod (33), the mounting rod (33) being fixed to the end of the protective sleeve (32) and passing through the fixing ring (31), and a limiting plate (331) being fixed on the protruding end of the mounting rod (33); A return spring (34), wherein the return spring (34) is sleeved on the mounting rod (33) and is located between the protective sleeve (32) and the fixing ring (31).

3. A screwdriver with end protection function according to claim 2, characterized in that: A plurality of the mounting rods (33) are distributed at equal intervals along the circumferential direction.

4. A screwdriver with end protection function according to claim 2, characterized in that: The protection mechanism (3) further comprises: Elastic sheets (311), a plurality of the elastic sheets (311) being fixed on the fixing ring (31) at equal intervals along the circumferential direction; A locking piece (35), wherein the locking piece (35) is sleeved on the elastic sheet (311) and fastens the elastic sheet (311) to the knife rod (2).

5. A screwdriver with end protection function according to claim 4, characterized in that: The locking member (35) is a throat clamp (351).

6. A screwdriver with end protection function according to claim 1, characterized in that: Also includes: A strong magnetic ring (36) is fixed on the protective sleeve (32) at a position close to the end of the knife rod (2).

7. A screwdriver with end protection function according to claim 6, characterized in that: The inner wall of the protective sleeve (32) is provided with a mounting groove (321), and the strong magnetic ring (36) is fixed in the mounting groove (321).

8. The screwdriver with end protection function according to claim 1, characterized in that: Also includes: A polygonal plug-in rod (21) is fixed to the rear end of the knife rod (2), and a polygonal plug-in groove (12) is provided in the knife handle (1) for the polygonal plug-in rod (21) to be embedded.

9. A screwdriver with end protection function according to claim 8, characterized in that: Also includes: A first magnetic attraction sheet (121), the first magnetic attraction sheet (121) being fixed in the polygonal plug-in slot (12); A second magnetic attraction sheet (211), wherein the second magnetic attraction sheet (211) is fixed to the end of the polygonal plug-in rod (21) and is attracted to the first magnetic attraction sheet (121).

10. The screwdriver with end protection function according to claim 8, characterized in that: Also includes: A flexible limiting ring (122) is fixed to the inner wall of the polygonal plug-in slot (12), and a limiting slot (212) is provided on the polygonal plug-in rod (21) for the flexible limiting ring (122) to be embedded.

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