Handheld screwdriver

Abstract

The utility model relates to a handheld screwdriver, and belongs to the field of screw tools, the handheld screwdriver comprises a screwdriver main body, and the screwdriver main body comprises a rear end cover; the rear end cover is provided with a reversing device, the reversing device comprises a reverser installed on the rear end cover and a sliding plate installed on the side, opposite to the reverser, of the rear end cover in a sliding mode, and the reverser is provided with a reversing shifting piece protruding in the direction of the sliding plate. The sliding plate is provided with driving blocks which are arranged on the two sides of the reversing shifting piece to drive the reversing shifting piece to slide, and the rear end cover is provided with a sliding through groove used for allowing the reversing shifting piece to slide. The handheld screwdriver has the effect that the use convenience of the reversing switch in the handheld screwdriver is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of screwdrivers, in particular to a handheld screwdriver. BACKGROUND

[0002] The handheld screwdriver, also known as handheld electric screwdriver or electric driver, is a convenient and efficient electric tool for tightening and loosening screws.

[0003] In order to facilitate the user to change the rotation direction of the screwdriver, so as to quickly realize the conversion of the screwdriver from the tightening mode to the loosening mode, the manufacturer sets a reversing device and a reversing switch for controlling the action of the reversing device in the screwdriver. The handheld screwdriver includes a screwdriver body and a screwdriver handle connected to the bottom of the screwdriver body. At present, the reversing switch of most handheld screwdrivers is usually arranged on the front side of the screwdriver body or near the screwdriver handle.

[0004] For the related technology in the above, the inventor believes that the above handheld screwdriver is not very convenient to operate during use. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the convenience of using the reversing switch in the handheld screwdriver, the present application provides a handheld screwdriver.

[0006] The handheld screwdriver provided by the present application adopts the following technical scheme:

[0007] A handheld screwdriver includes a screwdriver body, the screwdriver body includes a rear end cover; the rear end cover is provided with a reversing device, the reversing device includes a reversing switch installed on the rear end cover and a sliding plate slidingly installed on the side of the rear end cover away from the reversing switch, the reversing switch has a reversing tab protruding towards the sliding plate, the sliding plate has a driving block arranged on both sides of the reversing tab to drive the sliding of the reversing tab, and the rear end cover is provided with a sliding groove for the sliding of the reversing tab.

[0008] By adopting the above technical scheme, the reversing device is installed on the rear end cover. When it is necessary to convert the tightening mode and the loosening mode of the screwdriver, the sliding plate installed on the rear end cover needs to be pushed, and the driving block on the sliding plate drives the sliding of the reversing tab, so as to realize the flexible conversion of the screw tightening and loosening directions. Compared with the handheld screwdriver in which the reversing switch is arranged on the front side of the screwdriver body, the operation is more convenient and flexible.

[0009] Optionally, the rear end cover is provided with a limiting structure for limiting the commutator on the side away from the sliding plate, the limiting structure comprises symmetrically arranged limiting plates and a first clamping seat connected to the side of the limiting plate away from the rear end cover and in clamping fit with the commutator, the limiting plate has a first abutting portion for abutting with the bottom of the commutator and a second abutting portion arranged on the top surface of the commutator.

[0010] By adopting the technical scheme, the specific structure of the limiting structure in the rear end cover for cooperating with the commutator is disclosed, the first clamping seat of the limiting block not only enhances the stability of the commutator during installation, but also ensures the accuracy and reliability of the commutation operation by limiting the movement range, so that the handheld screwdriver is more smooth and stable during commutation.

[0011] Optionally, the sliding plate has two symmetrically arranged second clamping seats and the second clamping seats are arranged in space vertically to the sliding direction of the sliding plate, and the rear end cover is provided with a clamping groove for clamping the second clamping seat; the symmetric axis of the clamping groove coincides with the symmetric axis of the sliding groove.

[0012] By adopting the technical scheme, the sliding plate is installed on the side of the rear end cover away from the commutator through the cooperation between the second clamping seat and the clamping groove, so that the connection between the sliding plate and the rear end cover is more stable and reliable, and the probability of loosening of the sliding plate during use of the handheld screwdriver is reduced.

[0013] Optionally, the rear end cover is provided with a gap slot on both sides of the sliding groove for arranging the driving block.

[0014] By adopting the technical scheme, the gap slot provides sufficient space for arranging the driving block, reduces the probability of affecting the sliding of the commutation paddle due to the structure of the driving block itself, and makes the handheld screwdriver more smooth and stable during commutation.

[0015] Optionally, the rear end cover and the shell body are connected through a clamping structure, the shell body is provided with a mounting convex ring on the side facing the rear end cover, the rear end cover has a first ring portion arranged in the mounting convex ring and a second ring portion connected to the first ring portion and extending outward, and the mounting convex ring has an abutting surface for abutting with the second ring portion.

[0016] By adopting the technical scheme, the specific structure of the clamping structure between the rear end cover and the shell body is disclosed, the clamping structure makes the connection between the shell body and the rear end cover simple and fast, without the need of using additional tools or fasteners, and the cooperation between the mounting convex ring and the first ring portion and the second ring portion realizes the quick installation of the rear end cover.

[0017] Optionally, the rear end cover is provided with a limiting protrusion at the first ring part, and the mounting protruding ring is provided with a limiting groove for arranging the limiting protrusion.

[0018] By adopting the above technical scheme, the cooperation between the limiting protrusion and the limiting groove helps to limit the rear end cover mounted on the shell main body, reduces the probability of rotation of the rear end cover during use of the handheld screwdriver, and enables the rear end cover to be more accurately aligned with the mounting protruding ring of the shell main body during installation, thereby reducing installation errors and debugging time.

[0019] Optionally, the number of the limiting protrusions is two.

[0020] By adopting the above technical scheme, the provision of the two limiting protrusions helps to provide more uniform and stable support, reduces the probability of rotation of the rear end cover during installation, and also enables the rear end cover to be correctly aligned and contacted with the mounting protruding ring of the shell main body, thereby improving the stability and reliability of the connection.

[0021] Optionally, the rear end cover is provided with an arrangement groove for arranging the sliding plate, and the rear end cover is provided with a protective cover for covering the sliding plate at the arrangement groove.

[0022] By adopting the above technical scheme, the provision of the protective cover helps to cover the sliding plate, thereby reducing the probability of the sliding plate sliding during transportation and causing the reversing device to start running, and helps to protect the sliding plate.

[0023] Optionally, the protective cover is provided with a connecting ring part abutting against the bottom surface of the arrangement groove, the connecting ring part is provided with a first magnetic sheet on the side facing the rear end cover, and the arrangement groove is provided with a second magnetic sheet attracted to the first magnetic sheet.

[0024] By adopting the above technical scheme, the protective cover is arranged in the arrangement groove of the rear end cover through the attraction between the first magnetic sheet and the second magnetic sheet, which helps to realize quick installation and disassembly of the protective cover.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. A handheld screwdriver, by mounting a reversing device on the rear cover of the screwdriver main body, the user only needs to push the sliding plate on the rear end cover to adjust the rotation direction of the screwdriver, thereby improving the use convenience of the reversing switch in the handheld screwdriver.

[0027] 2. The provision of the clamping structure between the rear end cover and the sliding plate improves the installation efficiency between the sliding plate and the rear end cover, and the connection is stable and reliable.

[0028] 3. By arranging the protective cover in the arrangement groove of the rear end cover for covering the sliding plate cover, the sliding plate can be protected on one hand, and on the other hand, the probability of the sliding plate sliding in the transportation of the hand-held screwdriver can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of a hand-held screwdriver in the embodiment of the present application.

[0030] Figure 2 is an exploded schematic diagram of a hand-held screwdriver in the embodiment of the present application.

[0031] Figure 3 is a schematic diagram of the commutator, the rear end cover and the sliding plate in cooperation in the embodiment of the present application.

[0032] Figure 4 is a schematic diagram of the shell main body and the rear end cover in cooperation in the embodiment of the present application.

[0033] Figure 5 is a partial sectional schematic diagram of the shell main body and the rear end cover in cooperation in the embodiment of the present application.

[0034] Figure 6 is a schematic diagram of the rear end cover and the protective cover in cooperation in the embodiment of the present application.

[0035] Legend of reference signs: 1, screwdriver main body; 11, shell main body; 111, mounting convex ring; 1111, abutting surface; 1112, limiting recess; 12, rear end cover; 121, sliding through slot; 122, accommodation groove; 123, limiting plate; 1231, first limiting part; 12311, limiting surface; 1232, second abutting part; 1233, third abutting part; 124, first clamping seat; 125, arrangement groove; 1251, second magnetic sheet; 126, clamping groove; 127, first ring part; 1271, limiting protrusion; 128, second ring part; 21, commutator; 211, commutating tab; 22, sliding plate; 221, driving block; 222, sliding ring part; 2221, second clamping seat; 223, sliding protrusion; 3, protective cover; 31, connecting ring part; 311, first magnetic sheet; 32, grabbing block. DETAILED DESCRIPTION

[0036] The following will be described in detail in combination with the accompanying Figures 1-6 The present application will be further described in detail.

[0037] The embodiment of the present application discloses a hand-held screwdriver. Referring to Figure 1 and Figure 2 The hand-held screwdriver comprises a screwdriver main body 1. The screwdriver main body 1 comprises a shell main body 11 and a rear end cover 12 for covering the rear side opening of the shell main body 11. The rear end cover 12 is provided with a commutating device.

[0038] With reference to Figure 2 And Figure 3 The reversing device comprises a reversing knob 21 installed on the rear end cover 12 and located in the inner cavity of the screwdriver body 1, and a sliding plate 22 slidingly installed on the rear end cover 12 and located on the side opposite to the reversing knob 21. The reversing knob 21 has a reversing tab 211 protruding towards the sliding plate 22 and used for driving the reversing knob 21 to realize reversing. The rear end cover 12 is provided with a sliding groove 121 for the reversing tab 211 to slide, and the sliding plate 22 is provided with a driving block 221 arranged on both sides of the reversing tab 211. In order to reduce the interference of the width of the driving block 221 itself on the sliding process of the reversing tab 211, the rear end cover 12 is provided with a clearance groove 122 for the driving block 221 to be arranged on both sides of the sliding groove 121. When the operator slides the sliding plate 22, the driving block 221 on the sliding plate 22 drives the reversing tab 211 to slide, so as to adjust the rotation direction of the screwdriver. In this embodiment, the sliding direction of the sliding plate 22 is left-right sliding.

[0039] With reference to Figure 3 The side of the rear end cover 12 opposite to the sliding plate 22 is provided with a limiting structure for limiting the reversing knob 21. The limiting structure comprises two limiting plates 123 symmetrically arranged on the rear end cover 12 and a first clamping seat 124 connected to the limiting plates 123 and clamped with the reversing knob 21. The limiting plate 123 comprises a first limiting portion 1231, a second abutting portion 1232 arranged opposite to the first abutting portion, and a third abutting portion 1233 connecting the first abutting portion and the second abutting portion 1232. The first abutting portion has a limiting surface 12311 for the bottom surface of the reversing knob 21 to abut against.

[0040] With reference to Figure 2 And Figure 3The sliding plate 22 is clamped and installed on the rear end cover 12, and the rear end cover 12 has a clamping groove 125 for arranging the sliding plate 22. The sliding plate 22 has a sliding ring part 222 and a sliding protrusion part 223 connected to the side of the sliding ring part 222 away from the rear end cover 12 and protruding away from the rear end cover 12. The sliding protrusion part 223 is a hollow structure. The sliding ring part 222 has two oppositely arranged second clamping seats 2221, and the two second clamping seats 2221 are arranged vertically in the sliding direction of the sliding plate 22. The rear end cover 12 is provided with a clamping groove 126 penetrating through the two side surfaces of the rear end cover 12 and used for clamping and matching with the second clamping seat 2221, and the clamping groove 126 can be used for sliding arrangement of the second clamping seat 2221. The symmetry axis of the clamping groove 126 coincides with the symmetry axis of the sliding through groove 121, and when one end of the reversing flapper 211 abuts against the sliding through groove 121, one end of the second clamping seat 2221 abuts against the clamping groove 126. In the embodiment, the cross section of the rear end cover 12 is circular and the cross section of the sliding plate 22 is square, and the sliding plate 22 is clamped at the center of the side of the rear end cover 12 away from the commutator 21.

[0041] With reference to Figure 4 and Figure 5 , the rear end cover 12 is connected and fixed between the shell body 11 by the clamping structure. The shell body 11 is provided with a mounting protruding ring 111 on the side facing the rear end cover 12, and the rear end cover 12 has a first ring part 127 arranged on the mounting protruding ring 111 and a second ring part 128 connected to the side of the first ring part 127 away from the sliding plate 22 and extending outward. The mounting protruding ring 111 has an abutting surface 1111 for abutting the second ring part 128. In order to limit the rear end cover 12 mounted on the shell body 11 and reduce the probability of rotation of the rear end cover 12 during use, the rear end cover 12 is provided with a limiting protruding block 1271 at the first ring part 127, and the mounting protruding ring 111 has a limiting recess 1112 for arranging the limiting protruding block 1271. The number of limiting protruding blocks 1271 is two. During the installation of the rear end cover 12, the shell body 11 includes a left shell and a right shell. First, the rear end cover 12 is arranged between the left shell and the right shell, and the first ring part 127 of the rear end cover 12 is arranged on the mounting protruding ring 111, and then the left shell and the right shell are connected and fixed by screws.

[0042] With reference to Figure 4 and Figure 6In order to reduce the probability of the reversing device operating due to accidental touch of the handheld screwdriver during transportation, the rear end cover 12 is further provided with a protective cover 3 for covering the sliding plate 22 at the arrangement groove 125. The protective cover 3 has a connecting ring part 31 abutting against the bottom surface of the arrangement groove 125, the protective cover 3 is provided with a first magnetic sheet 311 on the side of the connecting ring part 31 facing the rear end cover 12, and the bottom surface of the arrangement groove 125 is provided with a second magnetic sheet 1251 magnetically attracted to the first magnetic sheet 311. In the embodiment, the first magnetic sheet 311 is arc-shaped and the number is two, and the two first magnetic sheets 311 are symmetrically arranged on the bottom surface of the arrangement groove 125. In order to facilitate the taking of the protective cover 3, the protective cover 3 is further provided with a grabbing block 32.

[0043] The implementation principle of the handheld screwdriver is as follows: the reversing device is installed on the rear end cover 12 of the screwdriver main body 1, the sliding plate 22 is installed on the rear end cover 12, and the sliding of the reversing piece 211 in the reversing device 21 is driven by the driving block 221 on the sliding plate 22, so as to adjust the rotation direction of the handheld screwdriver, and the user can more quickly and conveniently adjust the reversing direction of the screwdriver.

[0044] The above are the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A hand-held screwdriver comprising a screwdriver body (1) comprising a rear end cap (12); characterized in that, The rear end cover (12) is provided with a reversing device, the reversing device includes a reversing gear (21) mounted on the rear end cover (12) and a sliding plate (22) slidingly mounted on the side of the rear end cover (12) away from the reversing gear (21), the reversing gear (21) has a reversing tab (211) protruding towards the sliding plate (22), the sliding plate (22) has a driving block (221) arranged on both sides of the reversing tab (211) to drive the reversing tab (211) to slide, and the rear end cover (12) is provided with a sliding through groove (121) for the sliding of the reversing tab (211).

2. A hand screwdriver according to claim 1, wherein The side of the rear end cover (12) away from the sliding plate (22) is provided with a limiting structure for limiting the reversing gear (21), the limiting structure includes symmetrically arranged limiting plates (123) and a first clamping seat (124) connected to the side of the limiting plate (123) away from the rear end cover (12) and clamped with the reversing gear (21), the limiting plate (123) has a first abutting portion for the abutting of the bottom of the reversing gear (21) and a second abutting portion (1232) arranged on the top surface of the reversing gear (21).

3. A hand-held screwdriver according to claim 1, wherein The sliding plate (22) has two second clamping seats (2221) arranged away from each other and arranged vertically to the sliding direction of the sliding plate (22), and the rear end cover (12) is provided with a clamping groove (126) for the clamping of the second clamping seat (2221); the symmetry axis of the clamping groove (126) coincides with the symmetry axis of the sliding through groove (121).

4. A hand screwdriver according to claim 3, wherein The rear end cover (12) is provided with a giving-way groove (122) for the arrangement of the driving block (221) on both sides of the sliding through groove (121).

5. A hand-held screwdriver according to claim 1, wherein The rear end cover (12) is connected with the shell body (11) through a clamping structure, the side of the shell body (11) towards the rear end cover (12) is provided with a mounting convex ring (111), the rear end cover (12) has a first ring portion (127) arranged on the mounting convex ring (111) and a second ring portion (128) connected to the first ring portion (127) and extending outward, and the mounting convex ring (111) has an abutting surface (1111) for the abutting of the second ring portion (128).

6. A hand screwdriver according to claim 5, wherein The rear end cover (12) is provided with a limiting convex block (1271) at the first ring portion (127), and the mounting convex ring (111) has a limiting groove (1112) for the arrangement of the limiting convex block (1271).

7. A hand-held screwdriver according to claim 6, wherein The number of the limiting convex blocks (1271) is two.

8. A hand-held screwdriver according to claim 1, wherein The rear end cover (12) has an arrangement groove (125) for the arrangement of the sliding plate (22), and the rear end cover (12) is provided with a protective cover (3) for covering the sliding plate (22) at the arrangement groove (125).

9. A hand-held screwdriver according to claim 8, wherein The protective cover (3) has a connecting ring part (31) abutting with the bottom surface of the arrangement groove (125), and a first magnetic sheet (311) is arranged on one side of the connecting ring part (311) towards the rear end cover (12), and the arrangement groove (125) is provided with a second magnetic sheet (1251) attracted to the first magnetic sheet (311).

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