CN112873136A - Electric tool system - Google Patents

Abstract

The invention discloses an electric tool system, comprising: an electric tool; a dust collector detachably connected to the power tool; a clamp assembly for removably connecting the dust collector to the power tool; the clamping assembly includes: a first connecting portion for connecting an electric tool; a second connection part for connecting the dust collector; a holding part for holding; the second connecting part comprises a limiting component and a fastening piece, and the limiting component can clamp the dust collector and is fastened through the fastening piece; the second connecting part also comprises a contact surface, and when the fastener is contacted with the contact surface, the fastener enables an acting force to be generated between the contact surfaces, and the acting force is always vertical to the contact surface. The electric tool system is strong in clamping force and convenient and fast to operate.

Description

Electric tool system

Technical Field

The present invention relates to a power tool system.

Background

The power tool system includes a dust collector and a clamping assembly for clamping the dust collector to the power tool, and the like. In the prior art, how to provide an electric tool system with strong clamping force, simple structure and convenient operation, which is often or causes the dust collector to deviate from the preset direction, due to the complex operation and the insecure clamping of the clamping assembly, is a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

To overcome the shortcomings of the prior art, the present invention provides a power tool system that is convenient for the user to operate.

In order to achieve the above object, the present invention adopts the following technical solutions:

a power tool system, comprising: an electric tool; a dust collector detachably connected to the power tool; a clamp assembly for removably connecting the dust collector to the power tool; the clamping assembly includes: a first connecting portion for connecting an electric tool; a second connection part for connecting the dust collector; a holding part for holding; the second connecting part comprises a limiting component and a fastening piece, and the limiting component can clamp the dust collector and is fastened through the fastening piece; the second connecting part also comprises a contact surface, and when the fastener is contacted with the contact surface, the fastener enables an acting force to be generated between the contact surfaces, and the acting force is always vertical to the contact surface.

Further, the second connecting portion includes a contact member, the contact member forms a contact surface, and the contact surface is a spherical surface.

Furthermore, the second connecting portion includes a first limiting member and a second limiting member, and the first limiting member and the second limiting member can rotate relatively.

Further, the first limiting piece and the second limiting piece are both provided with claw parts.

Furthermore, a rotating shaft is formed or connected with the main body of the clamping assembly, and the second limiting piece rotates around the rotating shaft.

Further, the second limiting part is provided with a connecting hole into which the fastening piece can be inserted, the connecting hole is provided with an internal thread structure, and the fastening piece is provided with an external thread structure matched with the internal thread structure.

Furthermore, the second connecting part also comprises an elastic piece, and the second connecting part also comprises an accommodating cavity for accommodating the elastic piece.

Furthermore, the clamping assembly also comprises a positioning piece, and a positioning hole matched with the positioning piece is formed in the electric tool; the positioning piece and the clamping component are fixedly connected or integrally formed and are T-shaped.

Further, the positioning member comprises a connecting end and a positioning end, and the connecting end is substantially perpendicular to the positioning end.

A power tool system, comprising: an electric tool; a dust collector detachably connected to the power tool; a clamp assembly for removably connecting the dust collector to the power tool; the clamping assembly includes: a first connecting portion for connecting an electric tool; a second connection part for connecting the dust collector; a holding part for holding; the dust collector comprises a clamping part for clamping, the clamping part extends along a linear direction, and when the clamping assembly clamps the dust collector, the second connecting part can be matched with the clamping part at any position of the extension direction of the clamping part to clamp the dust collector.

The invention has the advantages that: through the setting can remain throughout with the perpendicular clamping face of clamping-force to increase the clamping-force of electric tool system, convenience of customers operation.

Drawings

FIG. 1 is a perspective view of a power tool system;

FIG. 2 is an exploded schematic view of the power tool system of FIG. 1;

FIG. 3 is a perspective view of a clamping assembly of the power tool system of FIG. 2;

FIG. 4 is an exploded view of the clamping assembly of the power tool system of FIG. 3;

FIG. 5 is a cross-sectional view of the clamping assembly of the power tool system of FIG. 3;

FIG. 6 is a perspective view of a dust collector of the power tool system of FIG. 2;

FIG. 7 is a cross-sectional view of a dust collector of the power tool system of FIG. 6;

FIG. 8 is an exploded schematic view of a dust collector of the power tool system of FIG. 6;

FIG. 9 is an exploded schematic view of another perspective of a dust collector of the power tool system of FIG. 8;

FIG. 10 is an exploded view of the connection assembly and base of the dust collector of the power tool system of FIG. 6;

FIG. 11 is an enlarged view of the power tool system of FIG. 7 at A;

FIG. 12 is an enlarged view of the power tool system of FIG. 8 at B;

FIG. 13 is an exploded schematic view of a dust collection cartridge assembly of the dust collector of the power tool system of FIG. 6;

fig. 14 is a cross-sectional view of a dust collector of the power tool system of fig. 6.

Detailed Description

Fig. 1-2 illustrate a power tool system 100 that includes a dust collector 10 and a power tool 20, and further includes a coupling clamp assembly 30 for coupling the power tool 20 to the dust collector 10. The clamp assembly 30 is connected to the power source first and is connected to the dust container 10 after being fastened. Wherein, electric tool 20 specifically can be the electric hammer, and it can be used for drilling or assaulting the operation to wall body or wall etc. and it can produce a large amount of pieces and dust etc. in operation process, seriously influences user experience and operational environment, and under the serious condition, still can influence user operation, causes the potential safety hazard. A dust collector 10 is provided which can be operated simultaneously with the operation of the electric hammer or independently. The dust collector 10 has a function of adsorbing debris and dust. Specifically, the clamping assembly 30 includes a gripping portion 31, a first connecting portion 32, and a second connecting portion 33. Wherein, the first connecting part 32 is used for connecting the electric hammer or other electric tools 20; the second connection part 33 is used to connect the dust container 10. The hammer includes a grippable handle portion and a third connection portion 21 to which the clamping assembly 30 is connectable. As an alternative embodiment, the dust collector 10 may also be coupled to other hammer drill type tools or other tools that may generate debris or dust.

As shown in fig. 3, the clamping assembly 30 extends substantially along a first line 101, and the first connecting portion 32 is disposed between the grip portion 31 and the second connecting portion 33. When the third connecting portion 21 is sleeved on the third connecting portion 21 of the electric hammer, the holding portion 31 can be rotated to screw the clamping assembly 30 to the third connecting portion 21, and at this time, the holding portion 31 can be used as a secondary handle of the electric hammer for a user to hold. The dust container 10 is then mounted to the hammer by snapping the second connecting portion 33 into place on the vacuum cleaner and adjusting to the proper position to complete the fastening.

As shown in fig. 4 to 5, the second connecting portion 33 includes a positioning member 331, a limiting member 332, and a fastening member 333. Specifically, the second connecting portion 33 extends from one end of the clamping assembly 30, and the positioning member 331 is fixedly connected to or integrally formed with the clamping assembly 30. The positioning member 331 is embodied in a "T" shape having a connection end 331a connected to the clamping member 30 and a positioning end 331b extending from the connection end 331 a. The connecting end 331a is perpendicular to or intersects the first straight line 101, the positioning end 331b is parallel to or obliquely intersects the first straight line 101, and a locking groove 331c is formed between the positioning end 331b and the main body of the clamping assembly 30. The limiting assembly 332 includes a first limiting member 332a and a second limiting member 332 b. The first limiting member 332a is fixedly connected to or integrally formed with the main body of the clamping assembly 30. The second limiting member 332b is rotatably connected to the main body of the clamping assembly 30. Specifically, the second limiting member 332b has a first connection hole 332c and a second connection hole 332d, and the first connection hole 332c is used for inserting a rotation shaft 332f, so that the second limiting member 332b can rotate around the rotation shaft 332 f. The second connecting hole 332d is adapted to receive the fastening member 333 and is formed with an internal thread structure 332e, and the fastening member 333 is formed with an external thread structure 333a, so that after the fastening member 333 is inserted into the second connecting hole 332d, the second limiting member 332b can be fastened to the first limiting member 332a by the engagement of the internal thread structure 332e and the external thread structure 333 a. The second connecting portion 33 further includes a contact member 336 engaged with the fastening member 333, and a surface of the contact member 336 contacting with the fastening member 333 has a contact surface 336a, and the contact surface 336a is embodied as a spherical surface, so that when the second limiting member 332b is fixed to the first limiting member 332a by the fastening member 333, the fastening member 333 contacts with the contact surface 336a formed as a spherical surface, so that the acting force of the fastening member 333 and each point on the spherical surface is perpendicular to the contact surface 336a, so that the interaction force between the fastening member 333 and the contact surface 336a is more concentrated, so that the clamping force between the second limiting member 332b and the first limiting member 332a is greater, and the clamping force of the clamping assembly 30 on the dust collector 10 is greater, and the clamping is more tight.

In addition, the second connecting portion 33 is further provided with a first elastic member 335, the second connecting portion 33 is formed with an accommodating cavity 334 for accommodating the first elastic member 335, one end of the first elastic member 335 abuts against the accommodating cavity 334, and the other end abuts against the second limiting member 332b, so that a larger opening is always maintained between the first limiting member 332a and the second limiting member 332b, and the dust collector 10 can be rapidly clamped. When the fastening member 333 fixes the second limiting member 332b to the first limiting member 332a, the elastic force of the first elastic member 335 needs to be overcome first, so as to fasten the second limiting member 332 b. In fact, the first and second stoppers 332a and 332b are each formed with a claw portion 332g capable of holding the dust container 10 and clamping the dust container 10 by the fastening member 333. The dust collector 10 further includes a fourth connecting portion engaged with the second connecting portion 33, the fourth connecting portion further forms a positioning hole engaged with the positioning member 331, when the dust collector 10 is mounted to the second connecting portion 33, the positioning member 331 is first inserted into the positioning hole, and the dust collector 10 is moved in the direction of the first straight line 101, so that the dust collector 10 can be preliminarily positioned on the second connecting portion 33 by the positioning member 331, thereby preventing a user from additionally supporting the dust collector 10 when the user specifies the dust collector 10, and effectively increasing the convenience of the user's operation.

As shown in fig. 6 to 9, the dust collector 10 includes a housing 11, an air intake duct 12 and a dust box assembly 13, wherein the housing 11 forms an accommodating space 111, and the air intake duct 12 is at least partially disposed in the housing 11 and formed with an air inlet 121 and an air outlet 122. The housing 11 is provided with a fan 112 capable of generating air flow, the fan 112 rotates coins at high speed and can form negative pressure in the housing 11, the scraps and dust are adsorbed by the air inlet 121, the scraps and dust are conveyed to the dust collection box assembly 13 through the air inlet channel 12, and the dust-free air is discharged through the air outlet 122 after being filtered by the dust collection box assembly 13. The dust collector 10 further includes a coupling portion for connecting a power source, and the coupling portion may be used to connect a power source device such as a battery pack. In some alternative embodiments, the joint portion may also be connected with a power line or the like. For clearly explaining the technical scheme of the invention, the following is also defined as shown in fig. 6: front, back, left, right, upper and lower sides. The dust box assembly 13 of the dust collector 10 is connected to the rear side of the dust collector 10. The dust collector 10 includes a dust outlet 132 through which the dust and debris can be blown, and the dust box assembly 13 is provided with a dust inlet 131 which is engaged with the dust outlet 132. As an alternative embodiment, the connection end 331a of the dust container 10 is formed in a built-in type structure to connect the dust container assembly 13, that is, the dust container 10 is at least partially formed with a recess 113, and the recess 113 can accommodate at least a portion of the dust container assembly 13, thereby effectively utilizing the space inside the housing of the dust container 10. In fact, by optimizing the wiring and structural arrangement inside the dust collector 10, the volume of the groove 113 can be effectively increased, so that a dust collection box assembly with more volume can be inserted. In fact, the volume of the dust box assembly can be increased by the embedded connection mode. Because the connection position of the dust collector 10 and the dust box component 13 adopts embedded connection, the dust box component 13 can be made larger and longer, and does not occupy the connection space. More specifically, the dust container 10 is further provided therein with a control panel 114 for controlling the movement of the dust container 10, and the control panel 114 is disposed in the accommodating space 111 formed in the housing portion 11 and is disposed in a plane obliquely intersecting a linear direction extending in the front-rear direction, thereby further increasing the space utilization rate of the interior of the housing portion 11.

Specifically, the dust box assembly 13 includes a base 133, a filter assembly 134, and a dust box 135. Wherein the filter paper assembly 134 is mounted on the base 133, and the base 133 is connected with the dust box 135 and can form an accommodating cavity 334 capable of accommodating the filter paper assembly 134. To facilitate mounting of the dust container assembly 13 to the dust collector 10, a connection assembly 136 is also provided on the dust container assembly 13. The connection assembly 136 includes a first connection member 136a for connecting the dust box assembly 13 to the dust collector 10 and a second connection member 136b for connecting the dust box 135 to the base 133. The base 133 is provided with a rotating shaft extending along the second linear direction, and the first connecting member 136a is specifically a lock catch rotating around the rotating shaft; the second connector 136b is also embodied as a latch that rotates about a rotational axis. When the dust collecting box assembly 13 is fixed to the dust collector 10 by the first connecting member 136a, the second connecting member 136b cannot be triggered, and the dust collecting box 135 cannot be detached from the dust collecting box assembly 13, so that the problem that the user accidentally touches the connecting member 136, which causes the dust in the dust collecting box 135 to overturn and causes secondary pollution can be avoided. Only when the dust box assembly 13 is detached from the dust container 10, the dust box 135 can be detached from the dust box assembly 13, thereby facilitating the user to clean the dust at a predetermined position or a designated position, and effectively controlling the generation of the secondary pollution phenomenon.

As shown in fig. 10 to 12, in order to achieve the above function, a first stopping portion 115 engaged with the second connecting member 136b is formed or connected to the housing portion 11 of the dust container 10, and a second stopping portion 136c engaged with the first stopping portion 115 is formed or connected to the second connecting member 136 b. When the dust collecting box assembly 13 is mounted on the dust collector 10, the first stopping portion 115 abuts against the second stopping portion 136c, the first stopping portion 115 limits the rotation of the second connecting member 136b, and at this time, the second connecting member 136b is always connected with the dust collecting box 135, so that the dust collecting box 135 cannot be detached from the dust collecting box assembly 13.

As shown in fig. 13, the filter assembly 134 includes a filter 134a and a fixing member 134b, the filter 134a is integrally fixed by the fixing member 134b, and the fixing member 134b is formed with a plurality of snaps and can be snap-coupled with the base 133. Thereby effectively increasing the convenience of replacing the filter paper 134 a. Specifically, the fixing member 134b may be a plastic member having high strength and light weight, and may be easily molded, so that it may form a plurality of fastening tabs. In fact, the filter paper 134a has a plurality of pieces which are separated in a natural state and need to be fixed as a whole before being mounted to the dust box assembly 13. Through setting up the working of plastics, can effectual fixed filter paper 134a to can strengthen its intensity as a whole. In fact, with this arrangement, the user can quickly detach the filter paper 134a via the snap structure without the aid of other tools.

As shown in fig. 1 and 14, the dust collector 10 includes a control button 116, the control button 116 being capable of controlling the dust collector 10 to switch between the different modes. Specifically, the dust collector 10 includes a trigger mode and an automatic mode. In the trigger mode, it is necessary to trigger the dust suction port of the dust container 10 to a preset position, thereby starting the dust container 10 to start dust suction; when the dust suction port is not triggered and is away from the preset position, the dust collector 10 stops sucking dust. In the automatic mode, the dust suction can always keep the dust suction state. Specifically, the air intake passage 12 of the dust collector 10 includes: a movable tube 123, a rail portion 124, and an elastic guide tube 125. The movable tube 123 can slide freely on the guide rail portion 124, an elastic guide tube 125 is disposed between the movable tube 123 and the dust outlet 132, and the elastic guide tube 125 has a pre-tightening force, which can abut against the movable tube 123 and push the movable tube 123 to a position farthest from the dust outlet 132. When the electric hammer is operated and a workpiece such as a drill bit is driven into a wall, the movable pipe 123 biases the elastic guide pipe 125 and moves toward the dust outlet 132, and the movable pipe 123 shortens the length exposed outside the housing 11 of the dust collector 10 and enters the inside of the housing 11.

The housing 11 of the dust collector 10 is further provided with a non-contact switch 126, and the non-contact switch 126 is disposed on a sliding path of the movable pipe 123 and can be triggered when the movable pipe 123 slides to a predetermined position. Specifically, the non-contact switch 126 can be a hall switch or a photoelectric switch, which can transmit an electrical signal when triggered by a magnetic member on the movable tube 123, thereby connecting an electrical circuit to turn on the dust suction function of the dust container 10.

The dust collector 10 has the following operation methods:

when the control button 116 is pressed for a long time, the control circuit enters a trigger mode;

at this time, when the hall switch of the dust collector 10 is not triggered, the dust collector 10 does not start the dust collection function; when the movable pipe 123 is pressed and the hall switch is triggered, the dust collector 10 starts a dust suction function; when the movable pipe 123 moves away from the hall contactless switch 126, the hall contactless switch 126 transmits another electric signal, the circuit is disconnected, and the dust collector 10 stops collecting dust;

when the control button 116 is pressed for a short time, the control circuit can switch between the trigger mode and the automatic mode;

at this time, the dust collector 10 can be controlled to enter a trigger mode or an automatic mode; when the dust collector 10 is in the trigger mode, the dust collection function can be started by controlling the dust collector 10 by pressing the control button 116 for a long time; when the dust collector 10 is in the automatic mode, it can be always in the dust-collecting state;

when the control button 116 is pressed for a long time, the control circuit is in a cut-off state;

at this time, according to the operation of pressing the control button 116 for a short time, the dust collector 10 can be turned off after the control button 116 is pressed for a long time regardless of the mode.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.

Claims (10)

1. A power tool system, comprising:

an electric tool;

a dust collector detachably connected to the power tool;

a clamp assembly for removably connecting the dust collector to the power tool;

the clamping assembly comprises:

a first connecting portion for connecting the electric tool;

a second connection part for connecting the dust collector;

a holding part for holding;

it is characterized in that the preparation method is characterized in that,

the second connecting part comprises a limiting component and a fastening piece, and the limiting component can clamp the dust collector and can be fastened through the fastening piece; the second connecting part also comprises a contact surface, and when the fastener is contacted with the contact surface, the fastener enables the contact surface to generate an acting force which is always vertical to the contact surface.

2. The power tool system of claim 1,

the second connecting portion includes a contact member forming the contact surface, which is a spherical surface.

3. The power tool system of claim 1,

the second connecting part comprises a first limiting part and a second limiting part, and the first limiting part and the second limiting part can rotate relatively.

4. The power tool system of claim 3,

the first limiting piece and the second limiting piece are both provided with claw parts.

5. The power tool system of claim 1,

the main body of the clamping assembly forms or is connected with a rotating shaft, and the second limiting piece rotates around the rotating shaft.

6. The power tool system of claim 1,

the second limiting part is provided with a connecting hole into which the fastener can be inserted, the connecting hole is provided with an internal thread structure, and the fastener is provided with an external thread structure matched with the internal thread structure.

7. The power tool system of claim 1,

the second connecting part further comprises an elastic piece, and the second connecting part further comprises an accommodating cavity for accommodating the elastic piece.

8. The power tool system of claim 1,

the clamping assembly further comprises a positioning piece, and a positioning hole matched with the positioning piece is formed in the electric tool;

the positioning piece and the clamping component are fixedly connected or integrally formed and are T-shaped.

9. The power tool system of claim 1,

the positioning piece comprises a connecting end and a positioning end, and the connecting end is basically perpendicular to the positioning end.

10. A power tool system, comprising:

an electric tool;

a dust collector detachably connected to the power tool;

a clamp assembly for removably connecting the dust collector to the power tool;

the clamping assembly comprises:

a first connecting portion for connecting the electric tool;

a second connection part for connecting the dust collector;

a holding part for holding;

it is characterized in that the preparation method is characterized in that,

the dust collector comprises a clamping part capable of being clamped, the clamping part extends along a straight line direction, and when the clamping assembly clamps the dust collector, the second connecting part can be arranged at any position of the extending direction of the clamping part and matched with the clamping part to clamp the dust collector.

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