CN220825929U - Multi-core screwdriver capable of automatically discharging cutter - Google Patents

Abstract

The utility model belongs to the technical field of screwdrivers, and particularly relates to a multi-core screwdriver capable of automatically discharging a screwdriver. The device comprises a shaft barrel, wherein one end of the shaft barrel is provided with a knife outlet; the driving mechanism is arranged in the shaft barrel and comprises a motor and a screw rod connected to the motor, the screw rod is axially arranged in the shaft barrel, and the motor is used for driving the screw rod to rotate; the cutter cores are arranged close to the screw rod, and racks matched with the screw rod are arranged on one side, close to the screw rod, of each cutter core; the plurality of keys are arranged on the side face of the shaft barrel, the keys are connected to the cutter core, when the keys are pressed, the cutter core moves towards the direction close to the screw rod and enables the rack to engage with the screw rod, and the screw rod rotates to drive the cutter core to extend out of the cutter outlet. According to the utility model, automatic and rapid knife discharging can be realized by pressing the key, single-hand operation is convenient, knife discharging is convenient and rapid, and use experience is improved.

Description

Multi-core screwdriver capable of automatically discharging cutter

Technical Field

The utility model belongs to the technical field of screwdrivers, and particularly relates to a multi-core screwdriver capable of automatically discharging a screwdriver.

Background

The screwdriver is a common tool for turning a screw to position the screw, and has a wide application range as a common disassembling tool. Most screwdrivers now adopt split type design, and tool bit and handle can be used in combination at will, only need insert the fixed orifices of handle front end can. For convenience of users, some screwdrivers also adopt a multi-core design, however, the multi-core screwdrivers commonly used in the market basically use a push button to manually discharge the screwdriver, the stroke of pushing the screwdriver core to discharge the screwdriver by the push button is long, single-hand operation is difficult, or the screwdriver needs to be held at a proper angle to perform single-hand operation, and quick discharging of the screwdriver is difficult to realize in the process of disassembly and assembly maintenance, so that the use experience is affected.

Therefore, there is a need for a multi-core screwdriver that supports one-handed operation, with automatic ejection by pressing a button.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides the multi-core screwdriver capable of automatically discharging the cutter, which can realize automatic and rapid cutter discharging by pressing a key, is convenient for single-hand operation, is convenient and rapid to discharge the cutter and improves the use experience.

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

An automatic go out multicore screwdriver of sword includes:

The shaft cylinder is provided with a knife outlet at one end;

The driving mechanism is arranged in the shaft barrel and comprises a motor and a screw rod connected to the motor, the screw rod is axially arranged in the shaft barrel, and the motor is used for driving the screw rod to rotate;

The cutter cores are arranged close to the screw rod, and racks matched with the screw rod are arranged on one side, close to the screw rod, of each cutter core;

The plurality of keys are arranged on the side face of the shaft barrel, the keys are connected to the cutter core, when the keys are pressed, the cutter core moves towards the direction close to the screw rod and enables the rack to engage with the screw rod, and the screw rod rotates to drive the cutter core to extend out of the cutter outlet.

Further, the motor is arranged at the other end of the shaft barrel, which is opposite to the knife outlet, the driving mechanism further comprises a circuit board, the circuit board is close to the motor, a switch for starting the motor is arranged on the circuit board, an abutting part is arranged at the top of the knife core, and when the key is pressed to enable the rack to be meshed with the screw rod, the abutting part triggers the switch.

Further, a battery and a charging interface are arranged on the circuit board, and a charging hole corresponding to the charging interface is arranged on the side face of the shaft barrel.

Further, the motor and the circuit board are coaxially arranged, and the screw rod penetrates through the center of the circuit board.

Further, an upper tooth and a lower tooth are arranged on the inner side of the cutter core, a step part is formed at the lower end of the lower tooth, and the upper tooth of the cutter core in an extending state is abutted with the step part of the other cutter core in a contracting state, so that the cutter core in the extending state is positioned.

Further, a first spring is sleeved on the cutter core, and when the cutter core moves towards the cutter outlet edge, the first spring is compressed.

Further, the cutter core comprises a cutter core body, the rack is movably arranged at the top end of the cutter core body, and the key penetrates through the shaft barrel to be connected to the back surface of the rack.

Further, the top end of the cutter core body is provided with a rack groove, the rack is movably installed in the rack groove, the rack comprises a plate surface and a tooth surface, the plate surface is positioned in the rack groove, the tooth surface is positioned at a notch of the rack groove and faces the screw rod, the cutter core body is provided with a chute communicated to the rack groove, and the key is connected to the plate surface through the chute.

Further, a plurality of second springs connected to the plate surface are arranged in the rack groove, and when the key is pressed to enable the rack to be close to the screw rod, the second springs are compressed.

Further, a push button is further arranged on the side face of the shaft barrel, penetrates through the shaft barrel and is fixed to the cutter core body, and the push button is used for pushing the cutter core out of the cutter outlet.

The utility model has the beneficial effects that:

According to the utility model, the motor and the screw rod are arranged in the shaft barrel, when the key is pressed, the rack on the cutter core is meshed with the screw rod, and the motor drives the screw rod to rotate and push the cutter core to extend out of the cutter outlet, so that the automatic cutter outlet when the key is pressed is realized, the operation by one hand is convenient, and convenience and rapidness are realized; through setting a switch, when a key is pressed, the abutting part of the cutter core triggers the switch and starts the motor; the charging interface and the battery are arranged, so that the battery can be conveniently charged; the cutter core is used for realizing the reset rebound of the cutter core by arranging the first spring; the pushing button is arranged for pushing out the cutter core manually when the electric quantity of the battery is insufficient; according to the utility model, automatic and rapid knife discharging can be realized by pressing the key, single-hand operation is convenient, knife discharging is convenient and rapid, and use experience is improved.

Drawings

FIG. 1 is a schematic diagram of an explosive structure of the present utility model;

Fig. 2 is a schematic structural view of a cutter core according to embodiment 1 of the present utility model;

FIG. 3 is a schematic exploded view of the drive mechanism of the present utility model;

fig. 4 is an exploded view of the cartridge of example 2 of the present utility model;

FIG. 5 is an enlarged view of portion A of FIG. 4 in accordance with the present utility model;

Fig. 6 is a schematic structural diagram of a cutter core and a driving mechanism according to embodiment 2 of the present utility model;

FIG. 7 is an enlarged view of portion B of FIG. 6 in accordance with the present utility model;

Fig. 8 is a schematic structural view of embodiment 3 of the present utility model;

The marks in the figure are as follows: 1-a shaft barrel, 110-a knife outlet and 120-a charging hole; 2-driving mechanism, 210-motor, 220-screw, 230-circuit board, 240-switch, 250-battery, 260-charging interface; 3-knife core, 310-rack, 311-plate surface, 312-tooth surface, 320-knife core body, 321-abutting part, 322-upper tooth, 323-lower tooth, 3231-step part, 324-rack groove, 325-chute, 330-first spring and 340-second spring; 4-key; 5-push button; 6-rotating wheel.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 8, an embodiment of a multi-core screwdriver with automatic tool discharging is shown.

Examples

Referring to fig. 1, the multi-core screwdriver capable of automatically discharging a screwdriver comprises:

the shaft cylinder 1, one end of the shaft cylinder 1 is provided with a knife outlet 110;

The driving mechanism 2 is arranged in the shaft barrel 1, the driving mechanism 2 comprises a motor 210 and a screw rod 220 connected to the motor 210, the screw rod 220 is axially arranged in the shaft barrel 1, and the motor 210 is used for driving the screw rod 220 to rotate;

The cutter cores 3 are arranged close to the screw rod 220, and racks 310 matched with the screw rod 220 are arranged on one side, close to the screw rod 220, of each cutter core 3;

The plurality of keys 4 are arranged on the side face of the shaft barrel 1, the keys 4 are connected to the cutter core 3, when the keys 4 are pressed, the cutter core 3 moves towards the direction close to the screw rod 220 and enables the rack 310 to engage the screw rod 220, and the screw rod 220 rotates to drive the cutter core 3 to extend out of the cutter outlet 110.

Referring to fig. 2 and 3, in the above embodiment, the lower end of the shaft barrel 1 is the knife edge 110, the knife core 3 extends from the knife edge 110 for screwing the screw, the upper end of the shaft barrel 1 is the rotating wheel 6, and during screwing, the rotating wheel 6 can abut against the palm center, and then the finger rotates the shaft barrel 1 to realize the rotation of the knife core 3. The motor 210 is arranged at one end, close to the rotating wheel 6, of the cutter core 3, the motor 210 is connected with the screw rod 220 and is located at the axis position of the shaft barrel 1, and 4 cutter cores 3 are circumferentially distributed around the screw rod 220. The rack 310 is arranged on the side surface of the cutter core 3, in a contracted state, namely, the cutter core 3 is completely positioned in the shaft barrel 1 and is not extended from the cutter edge 110, the rack 310 on the cutter core 3 is not meshed, the screw rod 220 is meshed with the rack 310 of the cutter core 3 only after the key 4 is pressed, at this time, the screw rod 220 is driven by the motor 210 to rotate, the cutter core 3 is driven to move downwards, and the other 3 cutter cores 3 are not moved because the cutter core 3 is not pressed, so that the purpose of automatically extending the cutter core 3 by pressing the key 4 is realized, the operation by one hand is convenient, and the convenience and the rapidness are realized.

Referring to fig. 2 and 3, in the above embodiment, the motor 210 is disposed at the other end of the shaft 1 opposite to the outlet blade 110, the driving mechanism 2 further includes a circuit board 230 disposed near the motor 210, a switch 240 for starting the motor 210 is disposed on the circuit board 230, an abutting portion 321 is disposed on the top of the cutter core 3, and when the key 4 is pressed to make the rack 310 engage with the screw 220, the abutting portion 321 triggers the switch 240. In the embodiment, when the cutter core 3 moves, the abutting portion 321 at the top of the cutter core 3 triggers the switch 240 on the circuit board 230, so as to achieve the purpose of starting the motor 210 only when the key 4 is pressed. In order to avoid that two knife cores 3 extrude out of the knife edge 110 due to the simultaneous pressing of two keys 4, in this embodiment, 4 switches 240 are provided on the circuit board 230 and correspond to the abutting portions 321 at the top of each knife core 3, and when two or more switches 240 in the 4 switches 240 are triggered, the motor 210 is not started or the motor 210 is stopped, so that the purpose that the knife edge 110 can be extruded out only when the rack 310 of one knife core 3 is meshed with the screw 220 is achieved. Alternatively, the switch 240 may be a tact switch, a metal spring, or two metal contacts that are electrically disconnected from the contact portion 321, or a single metal contact that is electrically connected to the contact portion 321, which can be adjusted by those skilled in the art according to the requirements.

Referring to fig. 3, in the above embodiment, the circuit board 230 is provided with the battery 250 and the charging interface 260, and the side of the shaft 1 is provided with the charging hole 120 corresponding to the charging interface 260. In an embodiment, battery 250 provides power support for motor 210 and may be charged by an external charger coupled to charging interface 260 through charging aperture 120. In the above embodiment, the motor 210 is disposed coaxially with the circuit board 230, and the screw 220 passes through the center of the circuit board 230. In an embodiment, the charging interface 260 and the battery 250 are disposed on a side of the circuit board 230 that is adjacent to the motor 210.

Referring to fig. 2, in the above embodiment, the inner side of the core 3 is provided with the upper teeth 322 and the lower teeth 323, the lower end of the lower teeth 323 is formed with the step portion 3231, and the upper teeth 322 of the core 3 in the extended state will abut against the step portion 3231 of the other core 3 in the contracted state, thereby positioning the core 3 in the extended state. In the embodiment, when the key 4 is pressed, one of the cutter cores 3 approaches the screw rod 220, the abutting portion 321 triggers the switch 240, the motor 210 drives the screw rod 220 to start rotating, the rack 310 engages the screw rod 220 to synchronously move downwards and stretch out of the cutter edge 110, the upper teeth 322 on the inner side of the cutter core 3 synchronously move downwards along with the cutter core 3 until the lower ends of the lower teeth 323 are located, the stepped portions 3231 on the lower ends of the remaining 3 lower teeth 323 form a clamping notch, and under the pressing of the key 4, the upper teeth 322 of the cutter core 3 in a stretching state are clamped into the clamping notch, so that stretching positioning of the cutter core 3 is realized.

Referring to fig. 1, in the above embodiment, the first spring 330 is sleeved on the cutter core 3, and when the cutter core 3 moves toward the outlet edge 110, the first spring 330 is compressed. In the embodiment, the first spring 330 is used for realizing the reset resilience of the cutter core 3, specifically, after the upper teeth 322 of the cutter core 3 in the extending state are clamped on the stepped portions 3231 of the lower teeth 323 of the other cutter cores 3 to be positioned, the stepped portions 3231 of the lower teeth 323 can move downwards and squeeze out the upper teeth 322 of the cutter core 3 which are originally extending in the process of pushing out the other cutter cores 3 by pressing other keys 4, so that the upper teeth 322 of the cutter core 3 are separated from the clamping notch, and the resilience reset is realized by the elasticity of the first spring 330. Alternatively, the key 4 corresponding to the extended core 3 may be pressed quickly, where the quick pressing will affect the stable structure between the upper teeth 322 and the step portion 3231, so that the upper teeth 322 are separated from the step portion 3231 to realize resetting and rebounding.

Examples

Referring to fig. 4 and 5, the present embodiment provides a multi-core screwdriver with automatic tool-discharging, and based on embodiment 1, the structure of the tool core 3 is improved. Specifically, in the present embodiment, the cutter core 3 includes a cutter core body 320, the rack 310 is movably disposed at the top end of the cutter core body 320, and the key 4 is connected to the back surface of the rack 310 through the shaft 1. In the embodiment, the cutter core 3 is composed of a cutter core body 320 and a rack 310 which can relatively move, when the key 4 is pressed, the rack 310 moves towards the direction approaching the screw 220. In the embodiment, the tool bit of the screwdriver is disposed at the lower end of the tool core body 320, the rack 310 is disposed at the upper end of the tool core body 320, and the abutting portion 321 for triggering the switch 240 is connected to the rack 310.

Referring to fig. 4 and 5, in the above embodiment, a rack slot 324 is formed at the top end of the cutter core body 320, the rack 310 is movably installed in the rack slot 324, the rack 310 includes a plate surface 311 and a tooth surface 312, the plate surface 311 is located in the rack slot 324, the tooth surface 312 is located in a notch of the rack slot 324 and faces the screw 220, a sliding slot 325 communicating with the rack slot 324 is provided on the cutter core body 320, and the key 4 is connected to the plate surface 311 through the sliding slot 325. Referring to fig. 6, in the embodiment, a space for the rack 310 to move is formed in the rack slot 324, and the rack 310 moves in a direction approaching or separating from the screw 220 in the rack slot 324 according to whether the key 4 is pressed or not. The rack 310 is composed of a plate surface 311 and a tooth surface 312, the width of the tooth surface 312 is matched with the notch of the rack slot 324, the width of the plate surface 311 is matched with the width in the rack slot 324, and the existence of the plate surface 311 limits the rack 310 in the rack slot 324. The rack 310 and the cutter core body 320 are relatively fixed in the length direction, the back of the cutter core body 320 is provided with a sliding groove 325, and the key 4 sequentially passes through the shaft barrel 1 and the sliding groove 325 of the cutter core body 320 from the outside and is connected to the plate surface 311 of the rack 310. When the key 4 is pressed, the rack 310 moves towards the screw rod 220, then, the cutter core body 320 also moves towards the screw rod 220, after the rack 310 contacts the screw rod 220, the screw rod 220 rotates to drive the rack 310 to discharge the cutter downwards, and in a contracted state, the rack 310 is retracted into the rack groove 324 to make room, so that interference with other extending cutter cores 3 is avoided.

Referring to fig. 5 and 7, in the above embodiment, a plurality of second springs 340 connected to the plate surface 311 are provided in the rack groove 324, and when the key 4 is pressed to bring the rack 310 close to the lead screw 220, the second springs 340 are compressed. In the embodiment, the second spring 340 is disposed in the rack slot 324, so that the rack 310 can approach or separate from the screw 220 according to whether the key 4 is pressed. Specifically, when the key 4 is pressed, the key 4 presses the plate 311, the plate 311 moves along with the tooth surface 312 toward the screw rod 220, in this process, the second spring 340 is compressed, and the cutter core body 320 moves toward the direction close to the screw rod 220, and then the tooth surface 312 engages with the screw rod 220 to realize downward movement, when the upper tooth 322 of the cutter core 3 is clamped into the stepped portion 3231, the key 4 is released, under the action of the elastic force of the second spring 340, the tooth surface 312 of the rack 310 is separated from the screw rod 220, and the key 4 rebounds. At the time of pressing the other key 4, since the rack 310 of the cutter core 3 already in the extended state does not engage the screw 220 any more, at this time, pressing the other key 4 does not cause a situation in which the rack 310 of the cutter core 3 in the extended state interferes with the rotation of the screw 220.

Examples

Referring to fig. 8, this embodiment provides a multi-core screwdriver with automatic and manual blade-out, which is based on embodiment 2 and adds a manual blade-out structure. In this embodiment, the side of the shaft 1 is further provided with a push button 5, and the push button 5 is fixed to the cutter core body 320 through the shaft 1 for pushing out the cutter core 3 from the outlet edge 110. In the embodiment, when pushing the push button 5, the cutter core 3 moves downward, when the key 4 is not pressed, the rack 310 is received in the rack slot 324 and does not engage with the screw 220, and because the second spring 340 is in a rebound state, the abutting portion 321 does not contact with the switch 240, so that the motor 210 and the screw 220 cannot rotate, and in the process of pushing the push button 5, the cutter core 3 can be pushed downward and does not interfere with the screw 220. The presence of the push button 5 provides an alternative solution, and when the battery 250 is in a shortage of electricity, the cutter core 3 can be pushed out for use by pushing the push button 5, so that the defect of the battery 250 is avoided, and the cutter core cannot be used normally.

In summary, the embodiment provides a multi-core screwdriver with automatic cutter discharging, by arranging the motor 210 and the screw rod 220 in the shaft barrel 1, when the key 4 is pressed, the rack 310 on the cutter core 3 is meshed with the screw rod 220, and the motor 210 drives the screw rod 220 to rotate and push the cutter core 3 to extend out from the cutter discharging edge, so that the automatic cutter discharging by pressing the key 4 is realized, the operation by one hand is convenient, and convenience and rapidness are realized; by providing the switch 240, when the key 4 is pressed, the abutment portion 321 of the cutter core 3 triggers the switch 240 and starts the motor 210; by providing charging interface 260 and battery 250, battery 250 is facilitated to be charged; by providing the first spring 330, the cutter core 3 is used for resetting and rebounding; by arranging the push button 5, the cutter core 3 is pushed out manually when the electric quantity of the battery 250 is insufficient; according to the embodiment, automatic and rapid knife discharging can be realized by pressing the key, single-hand operation is convenient, knife discharging is convenient and rapid, and use experience is improved.

The above-described embodiments are only one of the preferred embodiments of the present utility model, and the ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. An automatic go out multicore screwdriver of sword, characterized in that includes:

the shaft cylinder (1), one end of the shaft cylinder (1) is provided with an outlet knife edge (110);

a driving mechanism (2) installed in the shaft barrel (1), wherein the driving mechanism (2) comprises a motor (210) and a screw rod (220) connected to the motor (210), the screw rod (220) is axially arranged in the shaft barrel (1), and the motor (210) is used for driving the screw rod (220) to rotate;

A plurality of knife cores (3) arranged close to the screw rod (220), wherein racks (310) matched with the screw rod (220) are arranged on one side, close to the screw rod (220), of the knife cores (3);

The device comprises a shaft barrel (1) and a plurality of keys (4) arranged on the side face of the shaft barrel, wherein the keys (4) are connected to a cutter core (3), when the keys (4) are pressed, the cutter core (3) moves towards the direction close to a screw rod (220) and enables a rack (310) to be meshed with the screw rod (220), and the screw rod (220) rotates to drive the cutter core (3) to extend out from a cutter outlet (110).

2. The automatic knife-out multi-core screwdriver according to claim 1, wherein the motor (210) is arranged at the other end, opposite to the knife-out edge (110), in the shaft barrel (1), the driving mechanism (2) further comprises a circuit board (230) arranged close to the motor (210), a switch (240) for starting the motor (210) is arranged on the circuit board (230), an abutting portion (321) is arranged at the top of the knife core (3), and when the key (4) is pressed to enable the rack (310) to engage with the screw rod (220), the abutting portion (321) triggers the switch (240).

3. The automatic knife-discharging multi-core screwdriver according to claim 2, wherein a battery (250) and a charging interface (260) are arranged on the circuit board (230), and a charging hole (120) corresponding to the charging interface (260) is arranged on the side surface of the shaft barrel (1).

4. The automatic knife-out multi-core screwdriver according to claim 2, wherein the motor (210) is coaxially arranged with the circuit board (230), and the screw (220) passes through the center of the circuit board (230).

5. The automatic-ejection multi-core screwdriver according to claim 1, wherein an upper tooth (322) and a lower tooth (323) are arranged on the inner side of the cutter core (3), a step portion (3231) is formed at the lower end of the lower tooth (323), and the upper tooth (322) of the cutter core (3) in an extending state is abutted with the step portion (3231) of the cutter core (3) in another contracting state, so that the cutter core (3) in the extending state is positioned.

6. The automatic knife-out multi-core screwdriver according to claim 5, wherein the knife core (3) is sleeved with a first spring (330), and the first spring (330) is compressed when the knife core (3) moves towards the knife-out edge (110).

7. The automatic-ejection multi-core screwdriver according to any one of claims 1 to 6, wherein the tool core (3) comprises a tool core body (320), the rack (310) is movably disposed at the top end of the tool core body (320), and the key (4) is connected to the back surface of the rack (310) through the shaft (1).

8. The automatic knife-out multi-core screwdriver according to claim 7, wherein a rack groove (324) is formed in the top end of the knife core body (320), the rack (310) is movably installed in the rack groove (324), the rack (310) comprises a plate surface (311) and a tooth surface (312), the plate surface (311) is located in the rack groove (324), the tooth surface (312) is located in a notch of the rack groove (324) and faces the screw rod (220), a sliding groove (325) communicated into the rack groove (324) is formed in the knife core body (320), and the key (4) is connected to the plate surface (311) through the sliding groove (325).

9. The automatic knife-out multi-core screwdriver according to claim 8, wherein a plurality of second springs (340) connected to the plate surface (311) are arranged in the rack groove (324), and the second springs (340) are compressed when the key (4) is pressed to enable the rack (310) to be close to the screw rod (220).

10. The automatic knife-out multi-core screwdriver according to claim 9, wherein a push button (5) is further arranged on the side surface of the shaft barrel (1), and the push button (5) penetrates through the shaft barrel (1) to be fixed on the knife core body (320) for pushing out the knife core (3) from the knife-out edge (110).