Power tool system

Abstract

The application discloses an electric tool system, comprising: an electric tool; a dust collector, which is detachably connected to the electric tool; a clamping assembly, which is used for detachably connecting the dust collector to the electric tool; the clamping assembly comprises: a first connecting part, which is used for connecting the electric tool; a second connecting part, which is used for connecting the dust collector; and a holding part, which is used for holding; the second connecting part comprises a limiting assembly and a fastener, the limiting assembly can clamp the dust collector and is fastened through the fastener; the second connecting part further comprises a contact surface, when the fastener contacts the contact surface, the fastener generates an acting force between the contact surfaces, and the acting force is always perpendicular to the contact surface. The electric tool system has strong clamping force and is convenient to operate.

Description

Technical Field

[0001] This invention relates to an electric tool system. Background Technology

[0002] Power tool systems include dust collectors and clamping components for holding the dust collector onto the power tool. In existing technologies, clamping components are often complex to operate and have unreliable clamping, frequently causing the dust collector to deviate from its intended direction. Therefore, providing a power tool system with strong clamping force, simple structure, and convenient operation is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a power tool system that is convenient for users to operate.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An electric tool system includes: an electric tool; a dust collector detachably connected to the electric tool; and a clamping assembly for detachably connecting the dust collector to the electric tool. The clamping assembly includes: a first connecting portion for connecting the electric tool; a second connecting portion for connecting the dust collector; and a gripping portion for gripping. The second connecting portion includes a limiting component and a fastener, the limiting component clamping the dust collector and being secured by the fastener. The second connecting portion also includes a contact surface, wherein when the fastener contacts the contact surface, the fastener causes a force between the contact surfaces, the force always being perpendicular to the contact surface.

[0006] Furthermore, the second connecting part includes a contact element that forms a contact surface, which is a spherical surface.

[0007] Furthermore, the second connecting part includes a first limiting member and a second limiting member, and the first limiting member and the second limiting member can rotate relative to each other.

[0008] Furthermore, both the first and second limiting members have claw portions.

[0009] Furthermore, the main body of the clamping assembly is formed or connected to a pivot, and the second limiting member rotates around the pivot.

[0010] Furthermore, the second limiting member has a connecting hole for fastener insertion, the connecting hole has an internal thread structure, and the fastener has an external thread structure that mates with the internal thread structure.

[0011] Furthermore, the second connecting portion also includes an elastic member, and the second connecting portion also includes a receiving cavity for accommodating the elastic member.

[0012] Furthermore, the clamping assembly also includes a positioning element, and the power tool has a positioning hole that mates with the positioning element; the positioning element is fixedly connected to the clamping assembly or integrally formed, and is in the shape of a "T".

[0013] Furthermore, the positioning component includes a connecting end and a positioning end, with the connecting end being substantially perpendicular to the positioning end.

[0014] An electric tool system includes: an electric tool; a dust collector detachably connected to the electric tool; and a clamping assembly for detachably connecting the dust collector to the electric tool. The clamping assembly includes: a first connecting portion for connecting the electric tool; a second connecting portion for connecting the dust collector; and a gripping portion for gripping. The dust collector includes a clamping portion that extends in a straight direction. When the clamping assembly clamps the dust collector, the second connecting portion can engage with the clamping portion at any position in the extension direction of the clamping portion to clamp the dust collector.

[0015] The advantage of this invention is that by setting a clamping surface that can always remain perpendicular to the clamping force, the clamping force of the power tool system is increased, making it easier for the user to operate. Attached Figure Description

[0016] Figure 1 It is a 3D diagram of a power tool system;

[0017] Figure 2 yes Figure 1 An exploded view of the power tool system in the diagram;

[0018] Figure 3 yes Figure 2 A perspective view of the clamping components of a power tool system;

[0019] Figure 4 yes Figure 3 Exploded view of the clamping components of the power tool system in the diagram;

[0020] Figure 5 yes Figure 3 Cross-sectional view of the clamping assembly of the power tool system in the image;

[0021] Figure 6 yes Figure 2 A three-dimensional schematic diagram of the dust collector in the power tool system;

[0022] Figure 7 yes Figure 6 A cross-sectional view of the dust collector in the power tool system;

[0023] Figure 8 yes Figure 6 Exploded view of the dust collector in the power tool system;

[0024] Figure 9 yes Figure 8 An exploded view of the dust collector in a power tool system from another perspective;

[0025] Figure 10 yes Figure 6 An exploded view of the connection components and base of the dust collector in the power tool system;

[0026] Figure 11 yes Figure 7 Enlarged view of point A in the power tool system;

[0027] Figure 12 yes Figure 8 Enlarged view of point B in the power tool system;

[0028] Figure 13 yes Figure 6 An exploded view of the dust collection box assembly of the dust collector in the power tool system;

[0029] Figure 14 yes Figure 6 A cross-sectional view of the dust collector in the power tool system. Detailed Implementation

[0030] Figures 1 to 2 A power tool system 100 is shown, comprising a dust collector 10 and a power tool 20, and a connecting clamping assembly 30 for connecting the power tool 20 and the dust collector 10. The clamping assembly 30 is first connected to a power source and then connected to the dust collector 10 after being secured. The power tool 20 may specifically be an electric hammer, used for drilling or impacting walls or surfaces. During operation, it generates a large amount of debris and dust, severely impacting user experience and the operating environment, and in severe cases, affecting user operation and creating safety hazards. Therefore, a dust collector 10 is provided that can operate synchronously or independently while the electric hammer is running. The dust collector 10 has the function of adsorbing debris and dust. Specifically, the clamping assembly 30 includes a gripping part 31, a first connecting part 32, and a second connecting part 33. The first connecting part 32 is used to connect the electric hammer or other power tool 20; the second connecting part 33 is used to connect the dust collector 10. The electric hammer includes a handle for gripping and a third connecting part 21 for connecting to the clamping assembly 30. As an alternative implementation, the dust collector 10 can also be connected to other hammer drills or other tools that may generate debris or dust.

[0031] like Figure 3As shown, the clamping assembly 30 extends substantially along the first straight line 101, and the first connecting part 32 is disposed between the gripping part 31 and the second connecting part 33. When the third connecting part 21 is fitted onto the third connecting part 21 of the electric hammer, the clamping assembly 30 can be tightened to the third connecting part 21 by rotating the gripping part 31. At this time, the gripping part 31 can serve as a secondary handle for the user to hold on the electric hammer. Then, the dust collector 10 is installed onto the electric hammer by snapping the second connecting part 33 onto the vacuum cleaner, adjusting it to a suitable position, and then tightening it.

[0032] like Figures 4 to 5 As shown, the second connecting portion 33 includes a positioning member 331, a limiting component 332, and a fastener 333. Specifically, the second connecting portion 33 extends from one end of the clamping component 30, and the positioning member 331 is fixedly connected to or integrally formed with the clamping component 30. The positioning member 331 is specifically T-shaped, having a connecting end 331a connected to the clamping component 30 and a positioning end 331b extending from the connecting end 331a. The connecting end 331a is perpendicular to or intersects the first straight line 101, and the positioning end 331b is parallel to or obliquely intersects the first straight line 101. A groove 331c is formed between the positioning end 331b and the main body of the clamping component 30. The limiting component 332 includes a first limiting member 332a and a second limiting member 332b. The first limiting member 332a is fixedly connected to or integrally formed with the main body of the clamping component 30. The second limiting member 332b is rotatably connected to the main body of the clamping component 30. Specifically, the second limiting member 332b has a first connecting hole 332c and a second connecting hole 332d. The first connecting hole 332c is used to insert a rotating shaft 332f, so that the second limiting member 332b can rotate around the rotating shaft 332f. The second connecting hole 332d allows a fastener 333 to be inserted and has an internal thread structure 332e. The fastener 333 has an external thread structure 333a. When the fastener 333 is inserted into the second connecting hole 332d, the second limiting member 332b can be fastened to the first limiting member 332a through the cooperation of the internal thread structure 332e and the external thread structure 333a. The second connecting part 33 also includes a contact member 336 that cooperates with the fastener 333. The side of the contact member 336 that contacts the fastener 333 has a contact surface 336a, which is specifically a spherical surface. When the second limiting member 332b is fixed to the first limiting member 332a by the fastener 333, the fastener 333 contacts the spherical contact surface 336a. This makes the force between the fastener 333 and each point on the spherical surface perpendicular to the contact surface 336a. This makes the interaction force between the fastener 333 and the contact surface 336a more concentrated, thereby making the clamping force between the second limiting member 332b and the first limiting member 332a greater. As a result, the clamping assembly 30 has a greater clamping force on the dust collector 10, and the clamping is more secure.

[0033] Furthermore, the second connecting portion 33 is also provided with a first elastic member 335. The second connecting portion 33 forms a receiving cavity 334 for accommodating the first elastic member 335. One end of the first elastic member 335 abuts against the receiving cavity 334, and the other end abuts against the second limiting member 332b. This ensures that a large opening is always maintained between the first limiting member 332a and the second limiting member 332b, thereby enabling quick clamping of the dust collector 10. When the fastener 333 fixes the second limiting member 332b to the first limiting member 332a, it is first necessary to overcome the elastic force of the first elastic member 335 before tightening the second limiting member 332b. In fact, both the first limiting member 332a and the second limiting member 332b are provided with claw portions 332g, which can clamp the dust collector 10 and, under the action of the fastener 333, clamp the dust collector 10 tightly. The dust collector 10 also includes a fourth connecting part that cooperates with the second connecting part 33. The fourth connecting part also has a positioning hole that cooperates with the positioning member 331. When the dust collector 10 is installed on the second connecting part 33, the positioning member 331 is first inserted into the positioning hole, and the dust collector 10 is moved along the first straight line 101. Thus, the dust collector 10 can be initially positioned on the second connecting part 33 by the positioning member 331, thereby avoiding the need for the user to support the dust collector 10 separately when specifying it, and effectively increasing the user's operational convenience.

[0034] like Figures 6 to 9 As shown, the dust collector 10 includes a housing portion 11, an air inlet channel 12, and a dust collection box assembly 13. The housing portion 11 forms a receiving space 111. The air inlet channel 12 is at least partially disposed within the housing portion 11 and has an air inlet 121 and an air outlet 122. A fan 112 capable of generating airflow is disposed within the housing portion 11. The fan 112 operates at high speed and can create negative pressure within the housing portion 11. Debris and dust are adsorbed through the air inlet 121, conveyed through the air inlet channel 12, and then discharged to the dust collection box assembly 13. After being filtered by the dust collection box assembly 13, clean gas is discharged through the air outlet 122. The dust collector 10 also includes a connecting portion for connecting a power source, which can be used to connect a power supply device such as a battery pack. In some optional embodiments, the connecting portion can also connect a power cord, etc. To clearly illustrate the technical solution of the present invention, the following are also defined: Figure 6The following are shown: front, rear, left, right, top, and bottom sides. The dust collection 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 for blowing out debris and dust, and the dust collection box assembly 13 is provided with a dust inlet 131 that mates with the dust outlet 132. As an optional implementation, the connecting end 331a of the dust collector 10 adopts an embedded structure to connect to the dust collection box assembly 13, that is, at least a portion of the dust collector 10 has a groove 113 formed therein, which can accommodate at least a portion of the dust collection box assembly 13, thereby effectively utilizing the space inside the dust collector 10 housing. In fact, by optimizing the wiring and structural arrangement inside the dust collector 10, the volume of the groove 113 can be effectively increased, thereby allowing for the embedding of a larger volume of the dust collection box assembly. In fact, through the embedded connection method, the volume of the dust collection box assembly itself can also be increased. Because the connection between the dust collector 10 and the dust collection box assembly 13 is an embedded connection, the dust collection box assembly 13 can be made larger and longer without occupying connection space. More specifically, the dust collector 10 also has a control panel 114 for controlling the movement of the dust collector 10. The control panel 114 is located in the receiving space 111 formed by the housing part 11 and is positioned in a plane that is inclined to intersect the straight line extending in the front-back direction, thereby further increasing the space utilization rate inside the housing part 11.

[0035] Specifically, the dust collection box assembly 13 includes a base 133, a filter paper assembly 134, and a dust collection box 135. The filter paper assembly 134 is mounted on the base 133, and the base 133 is connected to the dust collection box 135, forming a receiving cavity 334 that can accommodate the filter paper assembly 134. To facilitate installation of the dust collection box assembly 13 onto the dust collector 10, a connecting assembly 136 is also provided on the dust collection box assembly 13. The connecting assembly 136 includes a first connector 136a for connecting the dust collection box assembly 13 to the dust collector 10 and a second connector 136b for connecting the dust collection box 135 to the base 133. The base 133 has a rotating shaft extending along a second linear direction; the first connector 136a is specifically a latch that rotates around the rotating shaft; the second connector 136b is also specifically a latch that rotates around the rotating shaft. When the dust collection box assembly 13 is fixed to the dust collector 10 via the first connector 136a, the second connector 136b cannot be triggered. At this time, the dust collection box 135 cannot be detached from the dust collection box assembly 13, thus preventing accidental contact with the connector 136b and the resulting spillage of dust from the dust collection box 135, causing secondary pollution. Only when the dust collection box assembly 13 is detached from the dust collector 10 can the dust collection box 135 be detached, allowing users to easily clean the dust at a preset or designated location, effectively controlling the generation of secondary pollution.

[0036] like Figures 10 to 12As shown, to achieve the above functions, a first stop portion 115 that mates with the second connector 136b is formed or connected to the housing portion 11 of the dust collector 10, and a second stop portion 136c that mates with the first stop portion 115 is formed or connected to the second connector 136b. When the dust collection box assembly 13 is installed on the dust collector 10, the first stop portion 115 abuts against the second stop portion 136c, and the first stop portion 115 restricts the rotation of the second connector 136b. At this time, the second connector 136b always remains connected to the dust collection box 135, so the dust collection box 135 cannot be removed from the dust collection box assembly 13.

[0037] like Figure 13 As shown, the filter paper assembly 134 includes filter paper 134a and a fixing member 134b. The filter paper 134a is fixed into a whole by the fixing member 134b, which has multiple snaps and can be connected to the base 133 by snaps. This effectively increases the convenience of replacing the filter paper 134a. Specifically, the fixing member 134b can be a plastic part, which has the characteristics of high strength, light weight, and easy molding, allowing it to form multiple snaps. In fact, the filter paper 134a consists of multiple pieces, which are in a separate state in their natural state. Before being installed into the dust collection box assembly 13, they need to be fixed into a whole. By setting up the plastic part, the filter paper 134a can be effectively fixed and its strength as a whole can be enhanced. In fact, with this setting, users can quickly install and remove the filter paper 134a through the snap structure without the need for other tools.

[0038] like Figure 1 and Figure 14 As shown, the dust collector 10 includes a control button 116, which can control the dust collector 10 to switch between different modes. Specifically, the dust collector 10 includes a trigger mode and an automatic mode. In trigger mode, the suction port of the dust collector 10 needs to be triggered to a preset position to start the dust collector 10 to begin suction; when the suction port is not triggered and moves away from the preset position, the dust collector 10 stops suction. In automatic mode, the suction can always be maintained. Specifically, the air inlet channel 12 of the dust collector 10 includes: a movable tube 123, a guide rail 124, and an elastic guide tube 125. The movable tube 123 can slide freely on the guide rail 124. An elastic guide tube 125 is provided between the movable tube 123 and the dust outlet 132. The elastic guide tube 125 has a pre-tensioning force, which can hold the movable tube 123 and push the movable tube 123 to the position farthest from the dust outlet 132. When the electric hammer is operated, as the drill bit and other workpieces drill into the wall, the movable tube 123 will bias the elastic conduit 125 and move toward the dust outlet 132. At this time, the movable tube 123 will shorten the length exposed on the outside of the housing part 11 of the dust collector 10 and enter the inside of the housing part 11.

[0039] The dust collector 10 also has a non-contact switch 126 on its housing 11. The non-contact switch 126 is specifically located on the sliding path of the movable tube 123 and can be triggered when the movable tube 123 slides to a preset 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 component on the movable tube 123, thereby connecting the circuit to turn on the dust collector 10's dust collection function.

[0040] The dust collector 10 has the following operating methods:

[0041] When control button 116 is pressed and held, the control circuit enters trigger mode;

[0042] When the Hall effect switch of the dust collector 10 is not triggered, the dust collector 10 does not start the dust collection function; when the movable tube 123 is squeezed and the Hall effect switch is triggered, the dust collector 10 starts the dust collection function; when the movable tube 123 moves away from the Hall non-contact switch 126, the Hall non-contact switch 126 transmits another electrical signal, the circuit is disconnected, and the dust collector 10 stops collecting dust.

[0043] When the control button 116 is pressed briefly, the control circuit can switch between trigger mode and automatic mode;

[0044] At this time, the dust collector 10 can be controlled to enter the trigger mode or the automatic mode; when the dust collector 10 is in the trigger mode, the dust collector 10 can be controlled to start the dust collection function by pressing and holding the control button 116; when the dust collector 10 is in the automatic mode, it can always be in the dust collection state.

[0045] When the control button 116 is pressed and held, the control circuit is in the cut-off state;

[0046] At this time, by pressing the control button 116 briefly, the dust collector 10 can be turned off after pressing and holding the control button 116, regardless of the mode it is in.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. An electric tool system, comprising: Power tools; A dust collector is detachably connected to the power tool; A clamping assembly for detachably connecting the dust collector to the power tool; The clamping assembly includes: A first connecting part is used to connect the power tool; The second connecting part is used to connect the dust collector; The grip section allows for holding; Its features are, The second connecting portion includes a limiting component and a fastener. The limiting component can clamp the dust collector and is fastened by the fastener. The second connecting portion includes a contact member forming a contact surface, which is a spherical surface. The second connecting portion includes a first limiting member and a second limiting member, which can rotate relative to each other. The second limiting member has a connecting hole for the fastener to be inserted, so that the fastener contacts the contact surface to fasten the limiting component. When the fastener contacts the contact surface, the fastener generates a force between itself and the contact surface, which is always perpendicular to the contact surface.

2. The power tool system according to claim 1, characterized in that, Both the first limiting member and the second limiting member have claw portions.

3. The power tool system according to claim 1, characterized in that, The main body of the clamping assembly is formed or connected to a pivot, and the second limiting member rotates around the pivot.

4. The power tool system according to claim 1, characterized in that, The connecting hole has an internal thread structure, and the fastener has an external thread structure that mates with the internal thread structure.

5. The power tool system according to claim 1, characterized in that, The second connecting portion further includes an elastic element, and the second connecting portion further includes a receiving cavity for accommodating the elastic element.

6. The power tool system according to claim 1, characterized in that, The clamping assembly further includes a positioning element, and the power tool has a positioning hole that mates with the positioning element; The positioning element is fixedly connected to or integrally formed with the clamping assembly, and is in the shape of a "T".

7. The power tool system according to claim 6, characterized in that, The positioning component includes a connecting end and a positioning end, wherein the connecting end is substantially perpendicular to the positioning end.

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