CN216030472U - Screwdriver head fixing structure - Google Patents

Abstract

The utility model discloses a screwdriver bit fixing structure of a screwdriver, which comprises a main body, wherein a first cavity and two second cavities are respectively arranged in the main body, a hexagonal through hole is formed in the top of the first cavity of the main body, an annular groove is formed in the inner wall of the hexagonal through hole of the main body, clamping pieces are respectively arranged on two sides of the annular groove of the main body, a first sliding hole is formed between the inner walls of the two sides of the annular groove and the inner wall of one side of each of the two second cavities of the main body, second racks are respectively connected in the two first sliding holes in a sliding manner, one ends of the two second racks are respectively fixedly connected with one side of the two clamping pieces, and a first rotating shaft is respectively connected in the two second cavities of the main body in a rotating manner. By arranging the clamping piece, the fixing block, the fixing piece, the sliding rod, the connecting piece, the guide ring, the extrusion rod and the anti-skidding sleeve, when the device is used, the device can conveniently and fast fix the tool bit, and has the advantages of high operation efficiency, good operation effect, simplicity in operation, stability and practicability.

Description

Screwdriver head fixing structure

Technical Field

The utility model relates to the technical field of daily hardware, in particular to a screwdriver head fixing structure of a screwdriver.

Background

Screwdrivers, also known as screwdrivers, are common tools used to turn screws into place, usually having a thin wedge-shaped head that can be inserted into a slot or recess in the head of the screw, with the development of technological technology, screwdrivers with replaceable bits have been developed. In order to improve the working effect of the screwdriver, a screwdriver bit fixing structure is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a screwdriver bit fixing structure.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a screwdriver bit fixing structure of a screwdriver comprises a main body, wherein a first cavity and two second cavities are respectively arranged in the main body, a hexagonal through hole is formed in the top of the main body, an annular groove is formed in the inner wall of the hexagonal through hole of the main body, clamping pieces are respectively arranged on two sides of the annular groove of the main body, a first sliding hole is formed between the inner walls of the two sides of the annular groove and the inner wall of one side of each of the two second cavities of the main body, a second rack is respectively and slidably connected in the two first sliding holes of the main body, one end of each of the two second racks is respectively and fixedly connected with one side of each of the two clamping pieces, a first rotating shaft is respectively and rotatably connected in the two second cavities of the main body, a first gear and a second gear are respectively sleeved outside the first rotating shaft, a first rack is respectively arranged in the two second cavities of the main body, and the two first gears are meshed with the two first racks, the bottom of two first racks all runs through to the inside of the first cavity of main part, and the main part is equipped with magnetic attraction mechanism in the inside of first cavity.

Furthermore, the magnetic attraction mechanism comprises a second magnetic block, the bottom of the second magnetic block is fixedly connected with two fixed blocks, the bottom of each fixed block is fixedly connected with the inner wall of the bottom of the first cavity of the main body, the main body is provided with a first magnetic block at the bottom of the hexagonal through hole, the first magnetic block is matched with the second magnetic block, connecting pieces are fixedly connected with the two sides of the first magnetic block, the tops of the two first racks are respectively and slidably connected with limiting rods, the tops of the two limiting rods are respectively and fixedly connected with the inner walls of the tops of the two second cavities of the main body, and one side of each connecting piece is respectively and fixedly connected with the bottom of each first rack.

Further, two the equal fixedly connected with slide bar in bottom of connection piece, the equal fixedly connected with stationary blade in both sides of second magnetic path, two first circular slide opening has all been seted up at the top of stationary blade, two the slide bar respectively with the first circular slide opening inner wall sliding connection of two stationary blades, two the outside of slide bar all is overlapped and is equipped with the spring, the both ends of spring respectively with the bottom of connection piece and the top fixed connection of stationary blade.

Furthermore, the top and the bottom of the main body are respectively provided with a guide ring and a handle.

Furthermore, the main part has all seted up the circular slide opening of second at the equal inner wall in both sides of first cavity, and the main part has the stripper bar, two in the equal sliding connection in inside of the circular slide opening of two second the equal fixedly connected with ejector pin of one end of stripper bar, the inside of the first cavity of main part is rotated and is connected with two second pivots, two the outside of second pivot is all rotated and is connected with the push rod, the second pivot with the junction of push rod is equipped with torque spring, the top of two push rods respectively with two the bottom looks adaptation of connection piece, two the ejector pin respectively with one side sliding connection of two push rods, the equal fixedly connected with kelly in bottom of two ejector pins.

Furthermore, an anti-slip sleeve is sleeved outside the grip.

The utility model has the beneficial effects that:

1. by arranging the clamping piece, the rack, the gear, the rotating shaft, the magnetic block, the fixed plate, the sliding rod, the connecting piece, the spring and the guiding ring, when the device is used, a tool bit to be replaced can be placed into the main body through the guiding ring, the bottom of the tool bit is contacted with the first magnetic block to enable the first magnetic block to slide downwards, the first magnetic block drives the two first racks through the two connecting pieces, the two first racks respectively drive the first rotating shaft through the first gear, the first rotating shaft drives the second gear to enable the second gear to drive the clamping piece to clamp the outside of the tool bit, meanwhile, the first magnetic block slides in the sliding hole of the fixed plate through the two sliding rods and compresses the spring to be contacted with the second magnetic block for attraction, so as to ensure the stability of the clamping piece, when the tool bit needs to be replaced, the tool bit can be pulled to be separated from the clamping piece with force, and the first magnetic block is reset through the spring, the device can conveniently fix the tool bit, and has high operation efficiency, the operation effect is good;

2. by arranging the extrusion rod, the ejector rod and the push rod, when the device is used, after the first magnetic block and the second magnetic block are contacted and attracted, the extrusion rods on two sides of the main body can be pressed, the ejector rod is driven by the extrusion rods to push the push rod, the push rod rotates on the second rotating shaft and pushes the connecting plate, so that the connecting plate drives the first magnetic block to be separated from the second magnetic block, and then the torsion spring on the second rotating shaft drives the push rod to drive the ejector rod and the extrusion rods to reset, so that the efficiency of replacing a tool bit of the device is improved, and the operation effect of the device is ensured;

3. through setting up the antiskid cover, when using this device, the friction of handle is improved to the antiskid cover, increases the practicality of device.

Through setting up clamping piece, rack, gear, pivot, magnetic path, fixed block, stationary blade, slide bar, connection piece, spring, guide ring, extrusion stem, ejector pin, push rod, antiskid cover, during the use of this device, this device can convenient fixed tool bit, and the operating efficiency is high, and the operation is effectual, easy operation, and is stable practical.

Drawings

Fig. 1 is a schematic cross-sectional view of a screwdriver bit fixing structure in accordance with an embodiment 1;

fig. 2 is a schematic sectional view of a main body of a screwdriver bit fixing structure in a top plan view in accordance with embodiment 1;

fig. 3 is a schematic structural view of an anti-slip cover of a screwdriver bit fixing structure in accordance with embodiment 2.

In the figure: the anti-skidding type hand grip comprises a main body 1, a clamping piece 2, a first rack 3, a second rack 4, a first gear 5, a first rotating shaft 6, a first magnetic block 7, a second magnetic block 8, a fixing block 9, a handle 10, an extrusion rod 11, a push rod 12, a push rod 13, a fixing piece 14, a sliding rod 15, a connecting piece 16, a spring 17, a guide ring 18, a second gear 19 and an anti-skidding sleeve 20.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-2, a screwdriver bit fixing structure of a screwdriver comprises a main body 1, a first cavity and two second cavities are respectively arranged in the main body 1, a hexagonal through hole is arranged at the top of the first cavity of the main body 1, an annular groove is arranged on the inner wall of the hexagonal through hole of the main body 1, clamping pieces 2 are respectively arranged at two sides of the annular groove of the main body 1, a first slide hole is arranged between the inner walls at two sides of the annular groove and the inner wall at one side of the two second cavities of the main body 1, a second rack 4 is respectively connected in the main body 1 in a sliding manner in the two first slide holes, one end of each of the two second racks 4 is respectively fixedly connected with one side of each of the two clamping pieces 2, a first rotating shaft 6 is respectively connected in the main body 1 in a rotating manner in the two second cavities, a first gear 5 and a second gear 19 are respectively sleeved outside the first rotating shaft 6, and a first rack 3 is respectively arranged in the two second cavities of the main body 1, two first gears 5 mesh with two first racks 3 mutually, and the bottom of two first racks 3 all runs through to the inside of the first cavity of main part 1, and main part 1 is equipped with magnetic attraction mechanism in the inside of first cavity.

Wherein, magnetic attraction mechanism includes second magnetic path 8, two fixed blocks 9 of bottom fixedly connected with of second magnetic path 8, the bottom inner wall fixed connection of the first cavity of the equal main part 1 in bottom of two fixed blocks 9, main part 1 is equipped with first magnetic path 7 in the bottom of hexagon through-hole, first magnetic path 7 and 8 looks adaptations of second magnetic path, the equal fixedly connected with connection piece 6 in both sides of first magnetic path 7, the equal sliding connection in top of two first racks 3 has the gag lever post, the top of two gag lever posts respectively with the top inner wall fixed connection of two second cavities of main part 1, one side of two connection pieces 6 respectively with the bottom fixed connection of two first racks 3.

Wherein, the equal fixedly connected with slide bar 15 in bottom of two connection pieces 16, the equal fixedly connected with stationary blade 14 in both sides of second magnetic path 8, first circular slide opening has all been seted up at the top of two stationary blades 14, two slide bars 15 respectively with the first circular slide opening inner wall sliding connection of two stationary blades 14, the outside of two slide bars 15 all is overlapped and is equipped with spring 17, spring 17's both ends respectively with the bottom of connection piece 16 and the top fixed connection of stationary blade 14.

Wherein, the top and the bottom of the main body 1 are respectively provided with a guide ring 18 and a handle 10, a tool bit to be replaced can be placed in the main body 1 through the guide ring 18, the bottom of the tool bit is contacted with a first magnetic block 7 to make the tool bit slide downwards, the first magnetic block 7 drives two first racks 3 through two connecting sheets 16, the two first racks 3 respectively drive a first rotating shaft 6 through a first gear 5, the first rotating shaft 6 drives a second gear 19 to make a second rack 4 drive a clamping piece 2 to clamp the outside of the tool bit, meanwhile, the first magnetic block 7 slides in a sliding hole of a fixing piece 14 through two sliding rods 15 and compresses a spring 17 until the spring 17 is contacted with a second magnetic block 8 for attraction, thereby ensuring the stability of the clamping piece 2, when the tool bit needs to be replaced, the tool bit can be pulled by force to be separated from the clamping piece 2, and the first magnetic block 7 is reset through the spring 17, the device can conveniently fix the tool bit, has high operation efficiency, the operation effect is good;

wherein, the inner walls of the main body 1 at both sides of the first cavity are both provided with second circular sliding holes, the main body 1 is connected with extrusion rods 11 at the insides of the two second circular sliding holes, one ends of the two extrusion rods 11 are both fixedly connected with ejector rods 12, the inside of the first cavity of the main body 1 is connected with two second rotating shafts in a rotating manner, the outsides of the two second rotating shafts are both connected with push rods 13 in a rotating manner, the joints of the second rotating shafts and the push rods 13 are provided with torsion springs, the tops of the two push rods 13 are respectively matched with the bottoms of the two connecting pieces 16, the two ejector rods 12 are respectively connected with one sides of the two push rods 13 in a sliding manner, the bottoms of the two ejector rods 12 are both fixedly connected with clamping rods, after the first magnetic block 7 is contacted and attracted with the second magnetic block 8, the extrusion rods 11 at both sides of the main body 1 can be pressed down, the ejector rods 12 are driven by the extrusion rods 11 to push the push rods 13, the push rods 13 rotate on the second rotating shafts and push the connecting pieces 16, the connecting piece 16 drives the first magnetic block 7 to be separated from the second magnetic block 8, and then the torsion spring on the second rotating shaft enables the push rod 13 to drive the ejector rod 12 and the extrusion rod 11 to reset, so that the efficiency of replacing the tool bit of the device is improved, and the operation effect of the device is ensured.

The working principle is as follows: when the device is used, a tool bit to be replaced can be placed into the main body 1 through the guide ring 18, the bottom of the tool bit is contacted with the first magnetic block 7 to enable the tool bit to slide downwards, the first magnetic block 7 drives the two first racks 3 through the two connecting pieces 16, the two first racks 3 respectively drive the first rotating shaft 6 through the first gear 5, the first rotating shaft 6 drives the second gear 19 to enable the second rack 4 to drive the clamping piece 2 to clamp the outer part of the tool bit, meanwhile, the first magnetic block 7 slides in the sliding hole of the fixing piece 14 through the two sliding rods 15 and compresses the spring 17 until being contacted with the second magnetic block 8 for attraction, so that the stability of the clamping piece 2 is ensured, when the tool bit needs to be replaced, the tool bit can be pulled to be separated from the clamping piece 2 with force, and the first magnetic block 7 is reset through the spring 17, the device can conveniently fix the tool bit, is high in operation efficiency and good in operation effect;

after the first magnetic block 7 and the second magnetic block 8 are contacted and attracted, the extrusion rods 11 on two sides of the main body 1 can be pressed down, the extrusion rods 11 drive the ejector rods 12 to push the push rods 13, the push rods 13 rotate on the second rotating shaft and push the connecting piece 16, so that the connecting piece 16 drives the first magnetic block 7 to be separated from the second magnetic block 8, then the torsion spring on the second rotating shaft enables the push rods 13 to drive the ejector rods 12 and the extrusion rods 11 to reset, the efficiency of replacing a tool bit of the device is improved, and the operation effect of the device is ensured.

Example 2

Referring to fig. 3, in the present embodiment, compared to embodiment 1, in order to increase the practicability of the device, an anti-slip sleeve 20 is sleeved on the outer portion of the grip 10, and the anti-slip sleeve 20 increases the friction force of the grip 10, thereby increasing the practicability of the device.

The working principle is as follows: when the device is used, a tool bit to be replaced can be placed into the main body 1 through the guide ring 18, the bottom of the tool bit is contacted with the first magnetic block 7 to enable the tool bit to slide downwards, the first magnetic block 7 drives the two first racks 3 through the two connecting pieces 16, the two first racks 3 respectively drive the first rotating shaft 6 through the first gear 5, the first rotating shaft 6 drives the second gear 19 to enable the second rack 4 to drive the clamping piece 2 to clamp the outer part of the tool bit, meanwhile, the first magnetic block 7 slides in the sliding hole of the fixing piece 14 through the two sliding rods 15 and compresses the spring 17 until being contacted with the second magnetic block 8 for attraction, so that the stability of the clamping piece 2 is ensured, when the tool bit needs to be replaced, the tool bit can be pulled to be separated from the clamping piece 2 with force, and the first magnetic block 7 is reset through the spring 17, the device can conveniently fix the tool bit, is high in operation efficiency and good in operation effect;

after the first magnetic block 7 and the second magnetic block 8 are contacted and attracted, the extrusion rods 11 on two sides of the main body 1 can be pressed down, the extrusion rods 11 drive the ejector rods 12 to push the push rods 13, the push rods 13 rotate on the second rotating shaft and push the connecting piece 16, so that the connecting piece 16 drives the first magnetic block 7 to be separated from the second magnetic block 8, then the torsion spring on the second rotating shaft enables the push rods 13 to drive the ejector rods 12 and the extrusion rods 11 to reset, the efficiency of replacing a tool bit of the device is improved, and the operation effect of the device is ensured.

When the device is used, the anti-slip sleeve 20 improves the friction force of the handle 10, and increases the practicability of the device.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (6)

1. A screwdriver head fixing structure of a screwdriver comprises a main body (1) and is characterized in that a first cavity and two second cavities are respectively formed in the main body (1), a hexagonal through hole is formed in the top of the first cavity of the main body (1), an annular groove is formed in the inner wall of the hexagonal through hole of the main body (1), clamping pieces (2) are respectively arranged on two sides of the annular groove of the main body (1), a first sliding hole is formed between the inner wall of each of two sides of the annular groove and the inner wall of one side of each of the two second cavities of the main body (1), second racks (4) are respectively arranged in the two first sliding holes of the main body (1), one ends of the two second racks (4) are respectively and fixedly connected with one side of the two clamping pieces (2), a first rotating shaft (6) is respectively arranged in the two second cavities of the main body (1), and a first gear (5) and a second gear (19) are respectively sleeved outside the first rotating shaft (6), the main part (1) all is equipped with first rack (3) in the inside of two second cavities, two first gear (5) and two first rack (3) mesh mutually, and the bottom of two first racks (3) all runs through to the inside of the first cavity of main part (1), and main part (1) is equipped with magnetic attraction mechanism in the inside of first cavity.

2. The screwdriver bit fixing structure of claim 1, wherein, the magnetic attraction mechanism comprises a second magnetic block (8), two fixed blocks (9) are arranged at the bottom of the second magnetic block (8), the bottoms of the two fixed blocks (9) are fixedly connected with the inner wall of the bottom of the first cavity of the main body (1), a first magnetic block (7) is arranged at the bottom of the hexagonal through hole of the main body (1), the first magnetic block (7) is matched with the second magnetic block (8), connecting pieces (6) are arranged on two sides of the first magnetic block (7), the tops of the two first racks (3) are connected with limiting rods in a sliding mode, the tops of the two limiting rods are fixedly connected with the inner walls of the tops of the two second cavities of the main body (1) respectively, and one sides of the connecting pieces (6) are fixedly connected with the bottoms of the two first racks (3) respectively.

3. The screwdriver bit fixing structure of claim 2, wherein sliding rods (15) are arranged at the bottoms of the two connecting pieces (16), fixing pieces (14) are arranged on two sides of the second magnetic block (8), first circular sliding holes are formed in the tops of the two fixing pieces (14), the two sliding rods (15) are respectively in sliding connection with the inner walls of the first circular sliding holes of the two fixing pieces (14), springs (17) are sleeved outside the two sliding rods (15), and two ends of each spring (17) are respectively fixedly connected with the bottoms of the connecting pieces (16) and the tops of the fixing pieces (14).

4. The screwdriver bit fixing structure as claimed in claim 3, wherein the top and bottom of the main body (1) are provided with the guide ring (18) and the handle (10), respectively.

5. The screwdriver bit fixing structure of claim 4, wherein the main body (1) is provided with second circular sliding holes on both sides of the first cavity, the main body (1) is provided with extrusion rods (11) inside the two second circular sliding holes, one end of each of the two extrusion rods (11) is provided with a top rod (12), the main body (1) is provided with two second rotating shafts inside the first cavity, the two second rotating shafts are provided with push rods (13) outside, a torsion spring is arranged at the joint of the second rotating shafts and the push rods (13), the tops of the two push rods (13) are respectively matched with the bottoms of the two connecting pieces (16), the two top rods (12) are respectively connected with one side of the two push rods (13) in a sliding manner, and the bottoms of the two top rods (12) are respectively provided with a clamping rod.

6. The screwdriver bit fixing structure as claimed in claim 5, wherein the grip (10) is externally sleeved with an anti-slip sleeve (20).

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