Pedal control device of angle grinder

Abstract

The utility model discloses a pedal control device of an angle grinder. The pedal control device comprises a seat body, a pedal on-off switch, a pedal piece, a pressing on-off switch and a cover body. The pedal on-off switch is arranged on the seat body; the pedal piece is arranged on the upper side of the seat body in a lifting manner and can control the opening or closing of the pedal on-off switch; the pressing on-off switch is arranged on the base body, the pressing on-off switch and the pedal on-off switch are arranged in series, and the pressing on-off switch is in a closed state when being pressed; the front end of the cover body is arranged on the base body in a turnover mode and located on the upper side of the pedal piece, the rear end of the cover body can press or deviate from the pressing on-off switch, the cover body can press the pressing on-off switch under the action of gravity, a foot containing cavity is defined by the cover body and the base body, and an opening is formed in the rear end of the foot containing cavity.

Description

Technical Field

[0001] The utility model relates to the field of angle grinders, in particular to a pedal control device for angle grinders. Background Art

[0002] During the use of an angle grinder, emergency situations such as the grinding wheel bursting or the grinding wheel getting stuck may occur. At this time, the angle grinder will shake violently, and it is difficult for the user to hold the handle of the angle grinder firmly and turn off the adjustment switch on the handle of the angle grinder accurately and quickly. Therefore, an existing solution is to connect a foot switch placed on the ground to the power cord of the angle grinder. When the user steps on the foot switch, the angle grinder can be powered on, and then the adjustment switch on the handle of the angle grinder can be turned on to start the angle grinder. When encountering emergency situations such as the grinding wheel bursting or the grinding wheel getting stuck on the angle grinder, the human body subconsciously lifts the foot to release the foot switch, thereby powering off and shutting down the angle grinder. The foot switch includes a seat body, a foot on-off switch, and a foot pedal. The foot pedal is slidably arranged on the seat body in a liftable manner. When the user steps on the foot pedal, the foot on-off switch is turned on and off. When the user releases the foot pedal, the foot pedal is reset to disconnect the foot on-off switch. However, in actual use, the angle grinder is prone to generate a large amount of dust particles when working. After long-term use, the dust particles may enter between the base and the pedal and affect the resetting of the pedal, making the foot switch unable to break the circuit, affecting the safety of the angle grinder. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a foot pedal control device for an angle grinder, which can further improve the safety of the angle grinder.

[0004] According to the embodiment of the utility model, the foot control device for an angle grinder comprises a seat, a foot on-off switch, a foot pedal, a push on-off switch and a cover. The foot on-off switch is arranged on the seat; the foot pedal is arranged on the upper side of the seat in a manner that it can be raised or lowered and can control the opening or closing of the foot on-off switch; the push on-off switch is arranged on the seat, the push on-off switch is arranged in series with the foot on-off switch, and the push on-off switch is in a closed state when pressed; the front end of the cover can be turned over and arranged on the seat and located on the upper side of the foot pedal, the rear end of the cover can press or deviate from the push on-off switch, the cover can press the push on-off switch under the action of gravity, the cover and the seat are enclosed to form a foot accommodating cavity, and the rear end of the foot accommodating cavity is provided with an opening.

[0005] The angle grinder foot control device according to the embodiment of the utility model has at least the following beneficial effects: the angle grinder foot control device is placed on the ground, the user's foot can be inserted into the foot accommodating cavity from the opening, and the foot is stepped on the foot piece to make the foot switch on and off, during which the cover body presses down the push-on and off switch under the action of gravity, so that the push-on and off switch is closed, thereby powering the angle grinder; in an emergency, the human body subconsciously lifts the foot and pushes the cover body to rotate, and makes the cover body deviate from the push-on and off switch, even if the foot piece cannot be reset normally by accident, it will not affect the power off of the angle grinder, so that the angle grinder foot control device can further improve the safety of the angle grinder.

[0006] According to some embodiments of the utility model, the cover body includes two side panel parts, and the two side panel parts are placed on the left and right sides of the foot pedal. The side panel parts are provided with detection sensors, and the detection sensors are higher than the foot pedal. The detection sensors are arranged in series with the foot pedal on-off switch.

[0007] According to some embodiments of the utility model, the cover body includes an upper plate portion and two side plate portions, the two side plate portions are placed on the left and right sides of the upper plate portion, the upper ends of the side plate portions are connected to the upper plate portion, the upper plate portion and the foot pedal are vertically spaced apart, and the rear end of the upper plate portion is bent upward to form a guide portion.

[0008] According to some embodiments of the utility model, the rear end of the foot pedal is pivotally connected to the rear part of the seat body, the front end of the foot pedal can be raised and lowered relative to the seat body, and an elastic reset member is arranged between the foot pedal and the seat body, and the elastic reset member is used to apply a force to reset the front end of the foot pedal upward.

[0009] According to some embodiments of the utility model, a footrest surface is provided on the upper side of the footrest member, and the footrest surface is arranged to be inclined downward in a direction from front to rear; and the upper side of the footrest member is uneven.

[0010] According to some embodiments of the utility model, the seat body includes a base frame and a pressure-bearing member, the pressure-bearing member is movably arranged on the base frame and has an extended position and a stored position, in which the pressure-bearing member is located inside the base frame; in the extended position, part of the pressure-bearing member extends out of the base frame in a horizontal direction.

[0011] According to some embodiments of the present invention, the seat body includes two pressure-bearing members, and when the two pressure-bearing members are in the unfolded position, the two pressure-bearing members extend out from opposite sides of the base frame respectively.

[0012] According to some embodiments of the utility model, the base frame is provided with a slide groove along the left-right direction, and the pressure bearing member is slidably arranged in the slide groove.

[0013] According to some embodiments of the utility model, the pressure-bearing member is slidably arranged on the base frame along a horizontal direction, and the seat body further includes a stroke limiting structure, and the stroke limiting structure is used to limit the sliding range of the pressure-bearing member.

[0014] According to some embodiments of the utility model, the travel limiting structure includes a strip hole and a limiting member, the length direction of the strip hole is the same as the extension and contraction direction of the pressure-bearing member, the strip hole is arranged on the pressure-bearing member, the limiting member passes through the strip hole and can move along the length direction of the strip hole, and the limiting member is fixedly arranged on the base frame.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a three-dimensional schematic diagram of the foot-operated control device for an angle grinder according to an embodiment of the utility model when the cover body is pressed to switch on and off;

[0018] Figure 2 It is a three-dimensional schematic diagram of the foot-operated control device for an angle grinder according to an embodiment of the utility model when the cover body is deviated from the pressing on-off switch;

[0019] Figure 3 It is a three-dimensional schematic diagram of the angle grinder foot control device according to the embodiment of the utility model when the pressure-bearing member is in the unfolded position;

[0020] Figure 4 It is a three-dimensional schematic diagram of the angle grinder foot control device according to the embodiment of the utility model when the pressure-bearing member is in the unfolded position.

[0021] Reference numerals:

[0022] The seat body 100, the bottom frame 110, the slide groove 111, the pressure bearing member 120, the strip hole 121, and the limit member 130;

[0023] Footrest member 200, footrest surface 210;

[0024] Press the on / off switch 300;

[0025] The cover body 400 , the side plate portion 410 , the detection sensor 420 , the upper plate portion 430 , and the guide portion 431 . DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figures 1 to 4 , is a foot control device for an angle grinder according to an embodiment of the utility model, comprising a seat 100, a foot on-off switch, a foot pedal 200, a push on-off switch 300 and a cover 400. The foot on-off switch is arranged on the seat 100; the foot pedal 200 is arranged on the upper side of the seat 100 in a manner that it can be raised or lowered and can control the opening or closing of the foot on-off switch; the push on-off switch 300 is arranged on the seat 100, the push on-off switch 300 is arranged in series with the foot on-off switch, and the push on-off switch 300 is in a closed state when pressed; the front end of the cover 400 is arranged on the seat 100 in a manner that it can be flipped and located on the upper side of the foot pedal 200, the rear end of the cover 400 can press or deviate from the push on-off switch 300, the cover 400 can press the push on-off switch 300 under the action of gravity, the cover 400 and the seat 100 enclose to form a foot accommodating cavity, and the rear end of the foot accommodating cavity is provided with an opening.

[0031] The foot control device for the angle grinder is placed on the ground, and the user's foot can be inserted into the foot accommodating cavity from the opening, and the foot pedal 200 is stepped on to turn the foot pedal on and off. During this period, the cover body 400 presses the push-on switch 300 under the action of gravity, so that the push-on switch 300 is closed, thereby powering the angle grinder. In an emergency, the human body subconsciously lifts the foot and pushes the cover body 400 to rotate, and the cover body 400 deviates from the push-on switch 300. Even if the foot pedal 200 cannot be reset normally by accident, it does not affect the power off of the angle grinder, so that the foot control device for the angle grinder can further improve the safety of the angle grinder. In addition, the cover body 400 is set, and when the angle grinder is used, it can also reduce the dust particles that fall into the space between the seat body 100 and the foot pedal 200.

[0032] In the embodiment, the cover body 400 includes two side panels 410, which are respectively arranged on the left and right sides of the pedal member 200. The side panels 410 are provided with detection sensors 420, which are higher than the pedal member 200, and are arranged in series with the pedal on-off switch. When the user's foot extends into the foot accommodating cavity from the opening, the detection sensor 420 can detect the user's foot, and at this time, the detection sensor 420 is closed, and the user steps on the pedal member 200 to close the pedal on-off switch, and the pressing on-off switch 300 is also in a closed state under the action of gravity. Since the detection sensor 420, the pedal on-off switch and the pressing on-off switch 300 are arranged in series, at this time, all three switches are closed, and the angle grinder can be powered; when the user's foot normally leaves the foot accommodating cavity from the opening, the angle grinder can also be powered off by disconnecting the detection sensor 420, so that the angle grinder foot control device has triple control protection, further improving the safety of the angle grinder when in use. Specifically, the detection sensor 420 is a photoelectric switch. It is conceivable that the detection sensor 420 can also be other types of sensors, such as a contact switch, etc. When the foot of the human body touches the contact switch, the contact switch enters a closed state.

[0033] In the embodiment, the cover body 400 includes an upper plate portion 430 and two side plate portions 410, the two side plate portions 410 are respectively disposed on the left and right sides of the upper plate portion 430, the upper ends of the side plate portions 410 are connected to the upper plate portion 430, the upper plate portion 430 and the pedal member 200 are vertically spaced apart, and the rear end of the upper plate portion 430 is bent upward to form a guide portion 431. The guide portion 431 is provided, and when the user's foot enters the foot accommodating cavity from the opening forward, the guide portion 431 can guide the user's toes, thereby facilitating the user's toes to be more easily inserted into the foot accommodating cavity, thereby improving the user experience. After the toes are inserted into the foot accommodating cavity, the toes are located between the upper plate portion 430 and the pedal member 200.

[0034] Specifically, the guide portion 431 is arc-shaped, has a good guiding effect, a simple structure, and is easy to implement. It is conceivable that the guide portion 431 can also be other structures, for example, the guide portion 431 is a plate body that is inclined upward.

[0035] In the embodiment, the rear end of the pedal member 200 is pivotally connected to the rear part of the seat body 100, and the front end of the pedal member 200 can be raised and lowered relative to the seat body 100. An elastic reset member is provided between the pedal member 200 and the seat body 100, and the elastic reset member is used to apply a force to reset the front end of the pedal member 200 upward. Specifically, the elastic reset member is a spring. When the user steps on the pedal member 200, the front end of the pedal member 200 rotates and descends, and the pedal switch is closed and closed. At this time, the elastic reset member is compressed; when the user releases the pedal member 200, the front end of the pedal member 200 rises and resets under the action of the elastic reset member, thereby disconnecting the pedal switch. Compared with the overall lifting method of the pedal member 200, the above structure is less likely to cause the pedal member 200 to get stuck and unable to reset, and has better reliability.

[0036] In the embodiment, a pedal surface 210 is provided on the upper side of the pedal member 200, and the pedal surface 210 is arranged to be tilted downward from the front to the rear, so that the user can press the pedal member 200 with his foot to make the front end of the pedal member 200 rotate and descend, which is more comfortable to use.

[0037] In the embodiment, the upper side of the pedal member 200 is uneven, and when the user's foot is placed on the pedal member 200, especially when the user applies force to step on the pedal member 200, the user's foot is not likely to slip, and the safety is good. Specifically, the upper side of the pedal member 200 is provided with a plurality of convex ribs, the convex ribs extend in the left-right direction, and the plurality of convex ribs are arranged in the front-back direction, so that the user's foot is not likely to slip forward and backward. It is conceivable that the upper side of the pedal member 200 can also be uneven by other structures, for example, the upper side of the pedal member 200 is provided with a plurality of rows of convex points arranged in the front-back direction, and each row of convex points includes a plurality of convex points arranged in the left-right direction.

[0038] In the embodiment, the seat 100 includes a base frame 110 and a pressure-bearing member 120. The pressure-bearing member 120 is movably arranged on the base frame 110 and has an extended position and a storage position. In the storage position, the pressure-bearing member 120 is located inside the base frame 110; in the extended position, part of the pressure-bearing member 120 extends horizontally out of the base frame 110. When the angle grinder foot control device is placed on the ground, if its position needs to be fixed, the pressure-bearing member 120 on the seat 100 can be extended horizontally, and a heavy object in the external environment is pressed on the pressure-bearing member 120, so that the seat 100 is relatively firmly fixed at a certain designated position on the ground, thereby avoiding the risk that the entire angle grinder foot control device is lifted up too quickly during the process of the human body subconsciously lifting the foot, and the cover body 400 does not have time to flip over to the on-off switch 300 to disconnect, thereby further improving the safety of the device.

[0039] When there is no need to fix the position of the device on the ground, the pressure-bearing member 120 can be switched to the storage position. At this time, the angle grinder foot control device can be relatively easily adjusted relative to the ground, and the storage space of the device is saved when not in use.

[0040] In an embodiment, the seat body 100 includes two pressure-bearing members 120, and when the two pressure-bearing members 120 are in the unfolded position, the two pressure-bearing members 120 extend from opposite sides of the base frame 110, respectively. Two pressure-bearing members 120 are provided, and extend from opposite sides of the base frame 110, respectively, when unfolded, so that when a heavy object is used to press the pressure-bearing members 120 to fix the angle grinder foot control device, the device is fixed in position relatively well and the force is relatively stable. Specifically, the two pressure-bearing members 120 extend from the left and right sides of the base frame 110, respectively. It is conceivable that the two pressure-bearing members 120 may also extend from the front and rear sides of the base frame 110, respectively, and those skilled in the art may make specific configurations according to actual needs.

[0041] In the embodiment, the base frame 110 is provided with a slide groove 111 along the left-right direction, and the pressure bearing member 120 is slidably provided in the slide groove 111. The pressure bearing member 120 is slidably connected to the base frame 110 through the slide groove 111, so as to be extended relative to the base frame 110 or received in the base frame 110, and the structure is simple and easy to implement.

[0042] In the embodiment, the pressure bearing member 120 is slidably arranged on the base frame 110 along the horizontal direction, and the seat body 100 further includes a travel limit structure, which is used to limit the sliding range of the pressure bearing member 120. The travel limit structure is provided to avoid the risk of the pressure bearing member 120 being loosened relative to the base frame 110 due to excessive sliding, and the use stability is better.

[0043] In the embodiment, the travel limit structure includes a strip hole 121 and a limit member 130. The length direction of the strip hole 121 is the same as the extension direction of the pressure-bearing member 120. The strip hole 121 is provided in the pressure-bearing member 120. The limit member 130 is passed through the strip hole 121 and can move along the length direction of the strip hole 121. The limit member 130 is fixedly provided on the base frame 110. When the pressure-bearing member 120 is extended or retracted, the strip hole 121 moves relative to the limit member 130. Since the limit member 130 is fixedly provided on the base frame 110, when the limit member 130 abuts against both ends of the strip hole 121, the pressure-bearing member 120 is limited from continuing to move, so that the extension and retraction travel range of the pressure-bearing member 120 can be limited, and the use is relatively stable.

[0044] Specifically, the stopper 130 is a screw, one end of which is threadedly connected to the base frame 110. It is conceivable that the stopper 130 can also be a plug-in nail, one end of which is plugged into the base frame 110.

[0045] It is conceivable that the travel limit structure can also be other structures. For example, a strip hole 121 is set on the base frame 110, and a boss is set on the pressure-bearing member 120. The boss passes through the strip hole 121 and can move along the strip hole 121. When the pressure-bearing member 120 slides until the boss abuts against the two ends of the strip hole 121, the maximum sliding travel range of the pressure-bearing member 120 is limited.

[0046] It is conceivable that the pressure-bearing member 120 may also be rotatably connected to the base frame 110, and may be rotated to a storage position, or rotated to extend in a horizontal direction relative to the base frame 110. Those skilled in the art may configure the pressure-bearing member 120 according to actual needs.

[0047] Specifically, the pressure bearing member 120 is a strip-shaped member with a simple structure and is easy to implement.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A foot control device for an angle grinder, characterized in that: include: base(100); A foot-operated on-off switch, arranged on the seat (100); A pedal member (200) is movably disposed on the upper side of the seat body (100) and is capable of controlling the opening or closing of the pedal on / off switch; A push-on / off switch (300) is arranged on the seat body (100), the push-on / off switch (300) is arranged in series with the foot-operated on / off switch, and the push-on / off switch (300) is in a closed state when pressed; The cover body (400) has a front end which is flippably arranged on the base body (100) and is located on the upper side of the pedal (200); the rear end of the cover body (400) can press or deviate from the push-on / off switch (300); the cover body (400) can press the push-on / off switch (300) under the action of gravity; the cover body (400) and the base body (100) are combined to form a foot accommodating cavity; the rear end of the foot accommodating cavity is provided with an opening.

2. The foot-operated control device for an angle grinder according to claim 1, characterized in that: The cover body (400) comprises two side panels (410), the two side panels (410) being respectively arranged on the left and right sides of the pedal member (200), the side panels (410) being provided with a detection sensor (420), the detection sensor (420) being higher than the pedal member (200), and the detection sensor (420) being arranged in series with the pedal on-off switch.

3. The foot-operated control device for an angle grinder according to claim 1, characterized in that: The cover body (400) comprises an upper plate portion (430) and two side plate portions (410), wherein the two side plate portions (410) are respectively arranged on the left and right sides of the upper plate portion (430), the upper ends of the side plate portions (410) are connected to the upper plate portion (430), the upper plate portion (430) and the pedal member (200) are vertically spaced apart, and the rear end of the upper plate portion (430) is bent upward to form a guide portion (431).

4. The foot-operated control device for an angle grinder according to claim 1, characterized in that: The rear end of the pedal member (200) is pivotally connected to the rear part of the seat body (100), the front end of the pedal member (200) can be raised and lowered relative to the seat body (100), and an elastic reset member is arranged between the pedal member (200) and the seat body (100), and the elastic reset member is used to apply a force to reset the front end of the pedal member (200) upward.

5. The foot-operated control device for an angle grinder according to claim 4, characterized in that: A footrest surface (210) is arranged on the upper side of the footrest member (200), and the footrest surface (210) is arranged to be inclined downward in a direction from front to rear; the upper side of the footrest member (200) is uneven.

6. The foot-operated control device for an angle grinder according to claim 1, characterized in that: The seat body (100) comprises a base frame (110) and a pressure-bearing member (120); the pressure-bearing member (120) is movably arranged on the base frame (110) and has an extended position and a stored position; in the stored position, the pressure-bearing member (120) is located inside the base frame (110); in the extended position, part of the pressure-bearing member (120) extends out of the base frame (110) in a horizontal direction.

7. The foot-operated control device for an angle grinder according to claim 6, characterized in that: The seat body (100) comprises two pressure-bearing members (120). When the two pressure-bearing members (120) are in the unfolded position, the two pressure-bearing members (120) extend out from opposite sides of the base frame (110) respectively.

8. The foot-operated control device for an angle grinder according to claim 6, characterized in that: The base frame (110) is provided with a slide groove (111) along the left-right direction, and the pressure bearing member (120) is slidably arranged in the slide groove (111).

9. The foot-operated control device for an angle grinder according to claim 6, characterized in that: The pressure-bearing member (120) is slidably arranged on the base frame (110) along a horizontal direction, and the seat body (100) further comprises a travel limiting structure, wherein the travel limiting structure is used to limit the sliding range of the pressure-bearing member (120).

10. The foot-operated control device for an angle grinder according to claim 9, characterized in that: The stroke limiting structure comprises a strip hole (121) and a limiting member (130); the length direction of the strip hole (121) is the same as the telescopic direction of the pressure-bearing member (120); the strip hole (121) is arranged on the pressure-bearing member (120); the limiting member (130) passes through the strip hole (121) and can move along the length direction of the strip hole (121); and the limiting member (130) is fixedly arranged on the base frame (110).

Images