Impact screwdriver

Abstract

The utility model discloses an impact screwdriver, and relates to the technical field of hardware tools. The milling cutter comprises a cutter bar part and a cutter handle part, the cutter bar part comprises a cutter bar body and a cutter bar head; the knife handle part comprises a handle, a movable sleeve and a metal cap, one end of the movable sleeve is fixedly arranged on one side of the metal cap, and the outer wall of the movable sleeve is sleeved with the handle; a rotating assembly is arranged between the movable sleeve and the cutter bar body, and a lengthening assembly is arranged between the cutter bar body and the cutter bar head. The rotating assembly comprises a spring, a first gasket and a second gasket; according to the screw driver, the column shaft is pushed to move and rotate in the notch through the action of the rotating assembly and the knocking force of the hammer, the column shaft drives the cutter bar body and the cutter bar head to rotate instantly, and by means of the principle, the impact force of the hammer is converted into the torsion force of the cutter bar body and the cutter bar head to unfasten a stubborn screw. And therefore, the disassembly of the stubborn screw is conveniently realized, and the disassembly convenience of the stubborn screw is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hardware tool technical field, concretely is impact screwdriver. BACKGROUND

[0002] Screwdriver is a kind of commonly used tool for screwing screw to make it in place, usually has a thin wedge head, can be inserted into the slot or notch of screw head;

[0003] However, the screwdriver in the prior art still has some defects:

[0004] 1, the screwdriver in the prior art, its shank part is relatively short, cannot adapt to deep hole operation and operation blocked by side;

[0005] 2, when dealing with stubborn screw disassembly, the screwdriver in the prior art still relies on manual force to rotate to realize, thereby leading to the disassembly of stubborn screw is relatively inconvenient. INVENTION CONTENTS

[0006] In order to solve the problem of short length of screwdriver in the prior art and inconvenient disassembly of stubborn screw by screwdriver, the utility model provides impact screwdriver.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme: impact screwdriver, the impact screwdriver includes shank part and handle part;

[0008] The shank part includes shank body and shank head;

[0009] The handle part includes handle, movable sleeve and metal cap, one end of the movable sleeve is fixedly arranged on the side of the metal cap, and the handle is sleeved on the outer wall of the movable sleeve;

[0010] Rotary assembly is arranged between the movable sleeve and the shank body, and lengthening assembly is arranged between the shank body and the shank head;

[0011] The rotary assembly includes spring, first washer and second washer, the spring, the first washer and the second washer are movably sleeved on one end of the shank body, one side of the second washer and the other end of the movable sleeve movably contact, a plurality of limiting blocks in annular array distribution are fixedly arranged on one end of the shank body, one side of the first washer and one side of the plurality of limiting blocks movably contact, one end of the spring and the other side of the first washer movably contact, the other end of the spring and the other side of the second washer movably contact;

[0012] A through hole is formed in one end of the shank body, a column shaft is movably arranged on the inner wall of the through hole, two notches are formed in the other end of the movable sleeve, and one end of the column shaft and one end of the notch movably contact.

[0013] Preferably, the outer wall of the handle is sleeved with an anti-skid sleeve.

[0014] Preferably, two opposite locking screws are threadedly rotatably installed at one end of the handle, and two connecting threaded holes are formed at one end of the movable sleeve, and the opposite locking screws are threadedly rotatably connected with the inner walls of the connecting threaded holes.

[0015] Preferably, the lengthening assembly comprises a plurality of lengthening sleeves, and a first threaded column is fixedly arranged at one end of each of the lengthening sleeves, and a first threaded hole is formed at the other end of each of the lengthening sleeves, and the adjacent two lengthening sleeves are connected through the threaded cooperation of the first threaded column and the first threaded hole.

[0016] A second threaded hole is formed at the other end of the cutter bar body, a second threaded column is fixedly arranged at one end of the cutter bar head, the lengthening sleeve and the cutter bar body are connected through the threaded cooperation of the first threaded column and the second threaded hole, and the lengthening sleeve and the cutter bar head are connected through the threaded cooperation of the first threaded hole and the second threaded column.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1、in the utility model, through the action of rotating assembly, the force of hammering is used to drive the column shaft to move and rotate in the slot, the column shaft drives the cutter bar body and the cutter bar head to rotate instantaneously, using this principle, the impact force of the hammer is converted into the torsion of the cutter bar body and the cutter bar head to unfasten stubborn screws, so that the stubborn screw disassembly is conveniently realized, and the convenience of stubborn screw disassembly is effectively improved.

[0019] 2、in the utility model, through the action of lengthening assembly, the lengthening sleeve of corresponding length is arranged between the cutter bar body and the cutter bar head, and the lengthening sleeve is fixed between the cutter bar body and the cutter bar head, so that the overall length of the cutter bar body and the cutter bar head is lengthened to be suitable for deep hole screw disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is the whole structure schematic diagram of the utility model impact screwdriver.

[0022] Figure 2 It is the explosion structure schematic diagram of the utility model impact screwdriver.

[0023] Figure 3 For the utility model Figure 2 A part of the enlarged schematic view.

[0024] Figure 4 For the utility model new column shaft and the separation structure diagram of cutter bar body.

[0025] Figure 5 For the utility model lengthens the separation structure diagram of assembly and cutter bar body and cutter bar head.

[0026] In the drawing: 1, cutter bar part;2, handle part;11, cutter bar body;12, cutter bar head;21, handle;22, anti-skid sleeve;23, movable sleeve;24, metal cap;25, locking screw;26, connecting thread hole;3, rotating assembly;31, spring;32, first washer;33, second washer;34, limit block;35, through hole;36, column shaft;37, notch;4, lengthening assembly;41, lengthening sleeve;42, first threaded column;43, first threaded hole;44, second threaded hole;45, second threaded column. Specific implementation

[0027] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Embodiment: as shown in the utility model provides impact screwdriver, impact screwdriver includes cutter bar part 1 and handle part 2; Figures 1-5

[0029] Cutter bar part 1 includes cutter bar body 11 and cutter bar head 12;

[0030] Handle part 2 includes handle 21, movable sleeve 23 and metal cap 24, one end of movable sleeve 23 is fixedly arranged on one side of metal cap 24, handle 21 is sleeved on the outer wall of movable sleeve 23, the outer wall of handle 21 is sleeved with anti-skid sleeve 22, by setting anti-skid sleeve 22 on handle 21, can increase friction, let hand not easy to slip, reduce the occurrence of accident, one end of handle 21 is screw thread rotation installation two locking screws 25, one end of movable sleeve 23 is provided with two connecting thread holes 26, one end of locking screw 25 and the inner wall of connecting thread hole 26 are screw thread rotation connection, by setting locking screw 25 and connecting thread hole 26, handle 21 can be fixed on the outside of movable sleeve 23, and handle 21 can be separated from movable sleeve 23 simultaneously;

[0031] ​The rotating assembly 3 is arranged between the movable sleeve 23 and the cutter bar body 11. The rotating assembly 3 can rotate the cutter bar body 11, so that the stubborn screw can be loosened. The lengthening assembly 4 is arranged between the cutter bar body 11 and the cutter bar head 12. The lengthening assembly 4 can lengthen the overall length of the cutter bar body 11, so that the deep hole operation can be adapted during the dismounting of the external screw.

[0032] The rotating assembly 3 comprises a spring 31, a first washer 32 and a second washer 33. The spring 31, the first washer 32 and the second washer 33 are movably sleeved on one end of the cutter bar body 11. One side of the second washer 33 movably contacts the other end of the movable sleeve 23. The one end of the cutter bar body 11 is fixedly provided with a plurality of limiting blocks 34 arranged in a ring array. One side of the first washer 32 movably contacts one side of the limiting blocks 34. One end of the spring 31 movably contacts the other side of the first washer 32. The other end of the spring 31 movably contacts the other side of the second washer 33. The one end of the cutter bar body 11 is provided with a penetrating hole 35. A column shaft 36 is movably arranged on the inner wall of the penetrating hole 35. The other end of the movable sleeve 23 is provided with two notches 37. One end of the column shaft 36 movably contacts one end of the notches 37. The limiting blocks 34 can abut against the spring 31 through the first washer 32. When the metal cap 24 is struck by the hammer, the metal cap 24 and the movable sleeve 23 move horizontally. The movable sleeve 23 can make the spring 31 contract through the second washer 33. The column shaft 36 moves along the notches 37 when the movable sleeve 23 moves horizontally, so as to instantaneously rotate the cutter bar body 11 and the cutter bar head 12. Through the principle, the impact force of the hammer is converted into the torsion of the cutter bar body 11 and the cutter bar head 12 to loosen the stubborn screw.

[0033] The lengthening assembly 4 comprises a plurality of lengthening sleeves 41. The first threaded column 42 is fixedly arranged on one end of each lengthening sleeve 41. The first threaded hole 43 is arranged on the other end of each lengthening sleeve 41. The first threaded column 42 and the first threaded hole 43 are threadedly connected between adjacent two lengthening sleeves 41.

[0034] The second threaded hole 44 is arranged on the other end of the cutter bar body 11. The second threaded column 45 is fixedly arranged on one end of the cutter bar head 12. The first threaded column 42 and the second threaded hole 44 are threadedly connected between the lengthening sleeve 41 and the cutter bar body 11. The first threaded hole 43 and the second threaded column 45 are threadedly connected between the lengthening sleeve 41 and the cutter bar head 12. The lengthening sleeve 41, the first threaded column 42, the first threaded hole 43, the second threaded hole 44 and the second threaded column 45 can be arranged between the cutter bar body 11 and the cutter bar head 12. The overall length of the cutter bar body 11 and the cutter bar head 12 can be adjusted by the threaded connection.

[0035] Working principle: when stubborn screw needs to be removed, the operator first inserts the head of the blade rod head 12 into the groove of the screw, holds the handle 21 tightly with the hand, then strikes the metal cap 24 by the external hammer, the hammer strikes make the metal cap 24 and the movable sleeve 23 move horizontally, the movable sleeve 23 makes the spring 31 contract through the second gasket 33, at this time, the both ends of the column shaft 36 move along the two notches 37, the column shaft 36 moves and rotates, the column shaft 36 drives the blade rod body 11 and the blade rod head 12 to rotate instantaneously, by using this principle, the impact force of the hammer is converted into the torsion of the blade rod body 11 and the blade rod head 12 to loosen the stubborn screw;

[0036] In the process of removing the screw, if a deep hole is encountered, a lengthened sleeve 41 of a corresponding length is arranged between the blade rod body 11 and the blade rod head 12, and a plurality of lengthened sleeves 41 are fixed between the blade rod body 11 and the blade rod head 12 in a threaded manner, so as to prolong the overall length of the blade rod body 11 and the blade rod head 12, and to be suitable for the disassembly of the deep hole screw.

[0037] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technology, the present application also intends to include these modifications and variations.

Claims

1. An impact screwdriver characterized by, The impact screwdriver comprises a shank part (1) and a handle part (2); The shank part (1) comprises a shank body (11) and a shank head (12); The handle part (2) comprises a handle (21), a movable sleeve (23) and a metal cap (24), one end of the movable sleeve (23) is fixedly arranged on one side of the metal cap (24), and the handle (21) is sleeved on the outer wall of the movable sleeve (23); A rotating assembly (3) is arranged between the movable sleeve (23) and the shank body (11), and an extension assembly (4) is arranged between the shank body (11) and the shank head (12); The rotating assembly (3) comprises a spring (31), a first washer (32) and a second washer (33), the spring (31), the first washer (32) and the second washer (33) are movably sleeved on one end of the shank body (11), one side of the second washer (33) movably contacts the other end of the movable sleeve (23), one end of the shank body (11) is fixedly provided with a plurality of limiting blocks (34) arranged in an annular array, one side of the first washer (32) movably contacts one side of the limiting blocks (34), one end of the spring (31) movably contacts the other side of the first washer (32), and the other end of the spring (31) movably contacts the other side of the second washer (33); One end of the shank body (11) is provided with a penetrating hole (35), a column shaft (36) is movably arranged in the inner wall of the penetrating hole (35), and the other end of the movable sleeve (23) is provided with two notches (37), and one end of the column shaft (36) movably contacts one end of the notch (37).

2. The impact driver of claim 1, wherein, The outer wall of the handle (21) is sleeved with an anti-skid sleeve (22).

3. The impact driver of claim 1, wherein, One end of the handle (21) is threadedly rotatably provided with two locking screws (25), one end of the movable sleeve (23) is provided with two connecting threaded holes (26), and one end of the locking screw (25) is threadedly rotatably connected with the inner wall of the connecting threaded hole (26).

4. The impact driver of claim 1, wherein, The extension assembly (4) comprises a plurality of extension sleeves (41), one end of each of the extension sleeves (41) is fixedly provided with a first threaded column (42), the other end of each of the extension sleeves (41) is provided with a first threaded hole (43), and adjacent two extension sleeves (41) are connected through the threaded cooperation of the first threaded column (42) and the first threaded hole (43); The other end of the shank body (11) is provided with a second threaded hole (44), one end of the shank head (12) is fixedly provided with a second threaded column (45), the extension sleeve (41) and the shank body (11) are connected through the threaded cooperation of the first threaded column (42) and the second threaded hole (44), and the extension sleeve (41) and the shank head (12) are connected through the threaded cooperation of the first threaded hole (43) and the second threaded column (45).

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