CN210126045U - Multifunctional electric tool driven by lithium battery - Google Patents

Abstract

A multifunctional electric tool driven by a lithium battery is characterized in that: there is a parent body that uses a power tool driven by a lithium battery and having a pistol-shaped drill feature. A conversion coupling block is mounted on an output shaft of the electric tool. This coupling block enables coupling of three kinds of execution modules. The three execution modules are respectively an execution module with a drilling and twisting function, an execution module with a rivet pulling function and an execution module with a wrenching function.

Description

Multifunctional electric tool driven by lithium battery

Technical Field

The utility model relates to an electric tool. In particular to a gun-shaped electric tool which takes a lithium battery as a power source and has a handle, and the gun-shaped electric tool can play roles of drilling, twisting, pulling, riveting and the like by replacing an execution module. It is called a multifunctional electric tool.

Background

Electric tools are of great importance as modern machining and maintenance fields. Electric tools with various functions are diversified. However, many power tools are limited to one tool for each function.

For example. One worker is required to complete such a job. The work content is that an iron box is arranged on an iron plate in the field. This task is simple. As long as 2 holes are drilled on the iron plate, one threaded rivet is respectively installed in each 2 holes. Then, the iron box is fixed on the iron plate by two hexagon bolts or inner hexagon screws. The worker then carries a handle gun drill (see fig. 1), a handle gun riveter (see fig. 2) and a handle gun wrench (see fig. 3). And when the device arrives at the site, sequentially punching, riveting and screwing the screw. The task is completed. We note that not the task itself, but that the worker goes out to do so, with three different tools. These three tools are not bulky, but a dc motor is used for such a power tool. The weight is not light.

In response to this situation, i invented a multifunctional power tool. Workers go out to complete the same task. As long as the power tool has a gun shape with a handle, three execution modules are required on the belt. The burden of workers can be greatly reduced.

Disclosure of Invention

The utility model aims to provide a multifunctional electric tool for reducing the burden of an operator. This tool is implemented as such. The method is characterized in that: there is a parent body which uses a power tool (see fig. 4) driven by a lithium battery and having a pistol-shaped drill characteristic, and a conversion coupling block (see fig. 5) is mounted on an output shaft of the power tool. This coupling block enables coupling of three kinds of execution modules. The three execution modules are respectively an execution module with a drilling and twisting function (see fig. 6), an execution module with a rivet pulling function (see fig. 7) and an execution module with a wrenching function (see fig. 8).

The matrix adopts the lithium cell drive, is regarded as the power supply by direct current motor. Meanwhile, a speed regulating knob is arranged outside the shell, so that speed can be regulated, and the rotating speeds for drilling, twisting, pulling and other functions are different. The shell is also provided with a forward and reverse rotation key which can perform forward and reverse rotation conversion, and the force borne by the matrix is mainly from axial pressure. The top end of the shell of the output port of the mother body is provided with external threads, so that the gland of different functional modules can be conveniently connected or replaced. The inner wall can be used for installing a bearing. The bottom of the shell is connected with a lithium battery pack. This lithium battery may be 12V, 24V, 48V.

The conversion coupling, which is the main element of the present invention. This element is cylindrical in shape. One end of the connecting rod is connected with an output shaft of the motor for tight connection. The inner wall of the upper opening at the other end is of an inner hexagonal structure, and the inner hole at the bottom end is of a conical shape. The function is that the hexagonal part in the upper opening is convenient for quickly installing or replacing the module with the wrenching function and the module with the rivet pulling function. The bottom conical shape is to facilitate the installation of the drill and winch module. Since drilling or reaming requires good centering properties of the power tool itself. The outer part of the end of the inner hexagon is threaded, and when the drilling and twisting module is used, the drilling and twisting module is withdrawn by adopting the retaining action of the nut and the threads for convenient replacement. And a ball bearing is arranged in the middle of the excircle of the conversion coupling block, and the excircle of the ball bearing is connected with the inner wall of the output port of the parent body. The function of the device is to bear the torsion of rotation. Since the axial pressure is mainly of concern when selecting the parent body. The force generated by the torsion is borne by the ball bearing.

The execution module of the drilling and twisting function is characterized by consisting of two large components. One is a claw-like collet and the other is a connecting shank. It also has a common accessory, a gland. Has two protective functions. Firstly, the ball bearing is pressed, and secondly, sundries are prevented from entering. This universal attachment is used with a wrenching module.

The claw-shaped chuck consists of a clamping jaw and an elastic sleeve. The three clamping jaws at the top end are separated or clamped under the action of the plane spiral disk through rotating the elastic sleeve, so that the clamped drill bit or reamer can be replaced or used.

The connecting handle is in the shape of a shaft, one end connected with the claw-shaped chuck is in a Morse conical shape, one end connected with the conversion coupling block is in two shapes, the outer end is in a conical shape, and the upper portion is in an outer hexagonal shape.

And the rivet pulling function execution module. It is characterized by consisting of three elements. Respectively a rivet screw, a top pressing screw and a gland.

The rivet screw consists of three parts, the front end of the rivet screw is a thread part, the rivet screw is screwed in by the thread, and the thread part of the rivet screw plays a role in grasping. The middle is a flat cylinder which has the function of bearing the axial force transmitted when riveting. The rear end is an outer hexagonal part which has the function of transmitting the rotary motion output by the motor.

The top pressing screw is provided with a hexagonal plane with shooting grains, and a stud is connected with the hexagonal part. A hex screw is formed with a hole in the middle. The diameter of the hole is just enough to let the threaded part of the rivet screw pass. The hexagonal plane has a relatively high hardness. Subjected to a certain rotational friction.

The gland. The function of the rivet is to bear the axial force and partial torsion force during rivet pulling. And simultaneously plays a role in protection.

And the screwing function execution module. The socket wrench is characterized by comprising two kinds of adapter joints, one kind of adapter joint is used for a socket wrench head, and the other kind of adapter joint is used for a screwdriver.

The adapter of the socket wrench head. Is a stepped quadrilateral and hexagonal shaft-like element. One end of the hexagonal shaft is connected with the conversion coupling. The other end of the square is connected with a standard socket wrench head sold in the market.

The adapter of screwdriver. Is a shaft-like element with an external hexagonal shape at one end and an internal hexagonal shape at the other end. And the outer hexagonal end is connected with the conversion coupling. The inner hexagonal end is connected with various commercially available screwdrivers.

Drawings

FIG. 1 is a view of a pistol-shaped electric drill configuration

In the figure: is a pistol-shaped electric drill with a drill bit

Figure 2 is a pistol-shaped riveter

In the figure: the enlarged portion shows that the working head of the riveter is a blind rivet screw with external threads.

FIG. 3 is a pistol-shaped electric wrench

In the figure: the working head is shown as a socket head. With at least three tool bits. There are socket with external hexagonal, screwdriver head with various head shapes for screwing screw, and internal hexagonal wrench for screwing internal hexagonal screw.

Fig. 4 is a schematic diagram of a power tool precursor.

In the figure: 1 installing bearing inner wall 2, output shaft 3 with thread output port 4, matrix shell 5, forward and reverse rotation change-over key 6, lithium battery pack 7 and speed regulation knob

FIG. 5 conversion coupling

In the figure: 8-retreating-assisting nut 9 conversion coupling body 10 ball bearing 11 inner hexagonal end 12 conical end

FIG. 6 shows a drill and twist functional module

In the figure: 8-aid-backing nut 13 claw-shaped chuck 14 gland 15 conversion coupling 31 electric tool parent body (fig. 4)

FIG. 7 is a schematic view of a jaw cartridge assembly

In the figure: 16 drill bit 17 clamping jaw 18 elastic sleeve 19 connecting shaft

FIG. 8 shows a rivet functional module

In the figure: 15 conversion coupling 20 rivet screw 21 top pressure screw 22 gland 31 electric tool parent body (figure 4)

FIG. 9 is a schematic view of a blind rivet screw

In the figure: 23 screw portion 24 stop ring 25 outer hexagonal portion

FIG. 10 shows a wrenching functional module

In the figure: 14 gland 15 shaft connector 26 adapter 31 electric tool parent (fig. 4)

FIG. 11 is an adapter of the socket wrench.

In the figure: 27 quadrangular portion 28 hexagonal portion

FIG. 12 is a transition joint for a screwdriver

In the figure: 29 inner hexagonal part 30 outer hexagonal part

FIG. 13: is a schematic of the punching operation

Wherein: 31 electric tool parent body (figure 4) 32 iron plate 33 punching 34 drilling and twisting functional module (figure 6)

FIG. 14 is a schematic view of a blind riveting operation

Wherein: 31 electric tool parent body (figure 4) 32 iron plate 35 screw thread rivet 36 rivet functional module (figure 8)

FIG. 15 is a schematic of tightening a bolt

Wherein: 31 electric tool parent body (figure 4) 32 iron plate 35 screw thread rivet 37 mounting object 38 hexagon bolt 39 socket wrench head 40 pulling and twisting function module (figure 10)

Fig. 16 is a schematic of a battery-powered multi-function power tool cluster tool case:

wherein: 31 electric tool parent body 34 drilling and twisting function module 36 rivet function module 40 wrenching function module 41 collective tool box

The specific implementation mode is as follows:

a worker receives a task. An object is mounted on an iron post somewhere in the field. The following operations are required: now, a hole is drilled on the iron column, a threaded rivet is arranged in the hole, and then the rivet is tensioned by a rivet gun and is fixed on the iron column. And fixing the object on the iron column by using a hexagon bolt.

The worker then takes the collection toolbox 41. The electric tool comprises an electric tool matrix provided with a conversion coupling, a drilling and twisting functional module 34, a rivet pulling functional module 36 and a wrenching functional module 40. The accessories are as follows: drill 16, blind rivet screw 20, socket head 39, hex bolt 38 and threaded blind rivet 35.

On the spot, the worker takes out the electric tool parent body 31, the parent body is provided with the conversion coupling 15, the gland 14 is screwed, and the retreat assisting nut 8 is arranged on the conversion coupling 15. The drill-reaming function module 34 is mounted on the conversion coupling 15. A drill bit 16 is mounted on the claw grip 13. Holes 33 are punched in the iron plate 32. And (5) drilling the hole, and withdrawing the drilling and twisting functional module 34 by using a withdrawal assisting nut 8. Subsequently, the back-up nut 8 is unscrewed, and the gland 14 is unscrewed. The rivet functional module 36 is mounted on the conversion coupling 15 of the power tool body 31. The sequence is as follows: the threaded pull rod 20 is installed, the gland 22 is screwed, and the jacking screw 21 is screwed. A threaded blind rivet 35 is inserted into the hole. And then the rivet screw 20 on the rivet functional module 36 is screwed into the threaded rivet 35. The button of the power tool parent body 31 is opened, and the rivet functional module 36 rotates. The blind rivet spindle 20 is rotationally over-tightened with the blind rivet screw 35. The thin shell portion of the blind rivet 35 is deformed. So that the rivet 35 is clamped with the iron plate 32. And finishing the riveting function. The rivet function module 36 is withdrawn. The wrenching function module 40 is installed into the conversion coupling 15 of the power tool body 31. The mounting object 37 is put in place, the hexagonal bolt 38 is inserted into the hole of the mounting object 37 in the hole, and the thread of the hexagonal bolt 38 is screwed into the thread of the threaded rivet and tightened by hand. Then, the socket head 39 is fitted over the hexagonal head of the hexagonal bolt. The socket wrench 39 is connected to a wrenching function module 40. The power tool parent 31 button is pressed. The wrenching functional module 40 is rotated to tighten the hex bolts. After the workflow is completed, the worker returns the tools to the collective tool box 41 one by one, and the task is finished.

Claims (1)

1. A multifunctional electric tool driven by a lithium battery is characterized in that: the electric tool is driven by a lithium battery and has a pistol-shaped electric drill characteristic, a conversion coupling block is mounted on an output shaft of the electric tool and can be used for connecting three execution modules, and the three execution modules are respectively an execution module with a drilling and twisting function, an execution module with a pulling and riveting function and an execution module with a pulling and twisting function.

Images