Electric tool and safe starting method

A technology of electric tools and installation parts, which is applied in the direction of motor tools, manufacturing tools, hand-held tools, etc., can solve the problems of single opening conditions of electric tools and no protection for children, and achieve the effect of protection, property safety and personal safety

Pending Publication Date: 2022-04-05
ZHEJIANG CROWN POWER TOOLS MFG
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AI-Extracted Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an electric tool to solve the technical pr...
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Method used

[0046] In order to make the purpose, advantages and characteristics of the present invention more clear, the electric tool and its safe starting method proposed by the present invention will be further described in detail below in conjunction wit...
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Abstract

The invention provides an electric tool and a safe starting method, a pressure sensor is arranged on a holding part of the electric tool, the pressure sensor is used for sensing the holding force, and a controller controls whether the electric tool is started or not by analyzing whether the holding force meets a preset condition or not and combining the state of a switch. Wherein the preset condition of the holding force is used for distinguishing whether a person holding the electric tool is a child or a non-child, and when the child holds the tool, the holding force inevitably does not meet the preset condition for starting the electric tool, so that potential safety hazards and property loss caused by the fact that the child starts the electric tool without a guardian can be avoided; and the personal safety and property safety of children can be effectively protected. Meanwhile, when the machine is started, other specific operations are not needed, and individual identity verification is not needed either.

Application Domain

Portable power-driven toolsPower driven tools +1

Technology Topic

Image

  • Electric tool and safe starting method
  • Electric tool and safe starting method
  • Electric tool and safe starting method

Examples

  • Experimental program(1)

Example Embodiment

[0046] In order to make the objects, advantages and features of the present invention, the following binding Figure 1-7 The electric tools and their safety initiation methods proposed in the present invention are further detailed. It is to be noted that the figures are in a very simplified form and are used in the use of non-precision ratios, which is for convenience only, and clarify the object of the embodiment of the present invention.
[0047] As used in this specification, single form "one", "one", and "this" include complex objects, plural "multiple" includes more than two objects unless the content is further clearly indicated. As used in this specification, the term "or" is usually used in accordance with the meaning of "and / or" unless the content is further clearly indicated, and the term "installation", "connected", "connection" should be To make a broad understanding, for example, it can be a fixed connection, or a detachable connection, or integrally connected, or an electrical connection, and a communication connection. It can be directly connected, or can be indirectly connected by an intermediate medium, which can be an interaction between two components or two components. For those skilled in the art, the specific meanings of the above terms can be understood in the present application according to the specific circumstances.
[0048] See Figure 1-2 Combination Figure 4 The present application provides an electric tool including housing 10, a pressure sensor 20, a controller, and a switch. The housing 10 includes a grip portion 11, which is disposed within the grip portion 11 for induction grip. The controller is disposed within the housing 10 and is coupled to the pressure sensor 20 that receives the pressure sensing sensing to the grip. The switch is disposed on the housing 10, coupled to the controller, the switch transmitting the switch status information to the controller. The controller controls the power tool based on the gripping force satisfying its corresponding preset conditions and the switch status information satisfying its corresponding open condition.
[0049]By providing a pressure sensor 20 on the grip portion 11 of the electric tool, the pressure sensor 20 is used to induce a gripping force, and the controller passes whether the holding force satisfies the preset conditions and the state of the switch. To control whether the power tool is started, where the grip preset condition is used to distinguish between the people who hold the electric tool is children or non-children. When children carry the tool, the grip will inevitably do not meet the power tools. Setting conditions, which avoids children to turn on electric tools without guardians, causing safety hazards and property losses, which can effectively protect children's personal safety and property safety. And at the same time, when the machine is turned on, there is no need to perform individual authentication, so the electric tool is also in the case of the case where the electric tool can be avoided, and the electric tool will occur. Children do not need additional operations when they do need to turn on the power tool, or will not result in additional authentication.
[0050] Such as Figure 1-2 As shown in the electric drill as an example, the grip portion 11 is a handle, the switch being a trigger switch disposed at the handle, and the switch state information includes a trigger in the trigger switch located in a startup. The status information generated when the position is generated, and the trigger in the trigger switch is located in the state information generated by the non-starting position. Only the controller also detects that the trigger in the trigger switch is located at the startup position and the grip force at the handle reaches the preset condition, the controller controls the power tool startup operation.
[0051] Among them, the preset conditions of the holding force are not less than 10 kg-12 kg of the holding force. For example, 10kg, 11kg and 12kg. Because the study found that children under 10 years old did not exceed 10 kg-12kg of the maximum pressure applied to the object without the external assistance, so when the child launched the electric tool, even if the trigger switch The trigger buckle to the startup position, because the gripping force is not in line with the preset pressure, so that the electric tool is not started, thereby ensuring the safety of children. Further, since the minimum gripping force of adult women is 19kg to 23kg. Then set this preset condition, adults can easily reach the preset conditions when gripping the grip 11 of the holding section 11 of the electric tool, so it will not cause additional obstacles when adults are used.
[0052] Wherein, the preset conditions of the switch state information are the position of the switch to open the power tool. That is, the gripping force can also give the controller to control the start signal operated by the controller when the switch is satisfied with the preset conditions.
[0053] In one of the embodiments, the grip portion 11 further includes a grip region, the pressure sensor 20 being mounted within the grip area. Thus the pressure sensor 20 can directly sense the grip force when the operator picks up the electric tool, so that no operation is not required to apply a pressure that conforms to the predetermined condition in a particular area to bind the switch to start the electric tool.
[0054] An mounting portion 12 is provided in the grip region, and the pressure sensor 20 is mounted within the mounting portion 12. Specifically, the mounting portion 12 is composed of a plurality of limit columns to restrict the pressure sensor 20 to the grip area.
[0055] In other words, it is to be explained that the power tool can be an electric tool having a grip handle, such as a drill, such as Figure 1-2 Indicated. It can also be an electric tool without a handle, for example: a circular sand machine. Such as image 3 As shown, the circular casing housing 30 is generally presented as a cylinder, and there is no handle for holding, but the grip portion 11 is its head 31.
[0056] See Figure 5 Combination Figure 1-2 4: Another aspect of this application also provides a safety startup method of an electric tool, including the following steps:
[0057] S110: Get gripping force and switch status information;
[0058] S120: Analyze the shaking force and the switch status information;
[0059] S130: Determines whether the gripping force meets the preset conditions. If it is, it is judged that the switch status information is determined; if, the electric tool is not started; if it is to be explained, the power tool may not be re-acquired. Holding force.
[0060] S140: Judging whether the switch status information meets the opening condition, if so, start the electric tool; if, no power tool is started;
[0061] or,
[0062] It is determined whether the switch status information meets the opening condition. The switch information is described.
[0063] It is determined whether the gripping force conforms to the preset conditions. If it is, the electric tool is activated; if it is not started.
[0064] It should be noted that the above steps are only the step of operating the electric tool once. When the same operator needs to remove the power tool and suspend the use of the electric tool, the power tool only needs to re-acquire the switch information, and determine whether the switch information is The opening condition is satisfied, that is to say, as long as the holding force is determined that the preset conditions are determined, the switching information can only be judged next time.
[0065] Specifically, the power tool also includes a controller, the controller simultaneously acquires the switch status information and gripping force information, and of course, the switch status information and the gripping force information may be acquired, and the order is not . Similarly, the step of analyzing the holding force and the switch status information is not in order, that is, the gripping force can be analyzed first, or first analyze the switch status information, or Simultaneously analyze the gripping force and switch status information. Then it is determined that the step of holding the holding force and the switch status information is not to limit the order, that is, S130 and S140 can interchange the order.
[0066] In other words, it is to be noted that the switch status information refers to the position of the trigger on the electric tool is in the position where the power tool is turned on.
[0067] Now take a first to obtain a gripping force and the first analysis grip as an example, the safety start method of the electric tool is further elaborated.
[0068] First, if the gripping force is in line with the preset conditions, if the switch status information is judged, if it is determined that the switch status information is in the state of the power-on, then the power tool is safely activated, if the switch The status information is not in the power-on state, the electric tool is not started. If the holding force does not meet the preset conditions, the electric tool is not activated, and the gripping force can be re-acquired.
[0069] Similarly, if the switch status information is obtained and analyzes the switch status information, the safety startup method steps of the power tool are as follows:
[0070] It is determined whether the switch status information meets the opening condition. The holding force does not meet the preset conditions, then the gripping force is re-acquired. If the switch status information does not satisfy the opening condition, the power tool is not activated, and the switch information can be re-acquired.
[0071] Then referred to Image 6 Further, it is further determined whether or not the gripping force conforms to the predetermined condition comprises the following steps:
[0072] S131: Get at least three instantaneous gripping power within a certain period of time;
[0073] S132: Calculate the average of at least three instantaneous gripping force;
[0074] S133: It is determined whether or not the average is not less than 10kg-12kg.
[0075] In addition, it is to be noted that only when the average of more than 10 kg-12kg is not less than 10 kg-12kg, it can be ensured that the gripping force can prevent the child from holding or instantaneous in both hands. When the gripping force is not less than 10kg, the power tool is incorrect, there is a safety hazard.
[0076] See Figure 7 In yet another embodiment, it is judged whether or not the gripping force conforms to the predetermined condition comprises the steps of:
[0077] S134: Extract at least three average time intervals in a certain period of time;
[0078] S135: It is determined whether or not each instantaneous gripping force is not less than 10kg-12kg.
[0079] Among them, it includes the following steps before determining whether the grip is in line with the preset conditions:
[0080] It is determined whether the holding force is stable.
[0081] Preferably, the method of determining whether the holding force is stable comprises the steps of:
[0082] The acquired at least three instantaneous gripping force is respectively recorded in the acquisition time order 0 , F 1 , F 2... f n Among them, n≥3;
[0083] When the holding force satisfies the formula: | f n - (f n-1 + F n-2 ) / 2 | ≤1kg, and f n When not less than 10kg, the grip strength is stabilized.
[0084] Among them, it is necessary to explain that when the | f n - (f n-1 + F n-2 ) / 2 | ≥ 1kg, the f n is an invalid value, and the value may not be considered, and only the at least three gripping force is not less than 10 kg, it is possible to determine whether the holding force is stable. This prevents children from being smoked in the case where the electric tool is incorrect, and there is a safety hazard when the child has no less than 10 kg of the hands or instantaneous gripping force.
[0085] The following steps are included before performing the re-acquisition force:
[0086] The pressure sensor 20 is detected is normal. If the pressure sensor 20 is normally, after the previous series is judged, it can be determined that the user is a child, locking the electric tool, waiting for the next holding force to meet the preset conditions and the switch status information to satisfy the opening condition, Open the power tool again. If the pressure sensor 20 is normally, the pressure sensor 20 needs to be commissioned or replaced, thus avoiding the condition of the normal user cannot use the electric tool due to the abnormality of the pressure sensor 20.
[0087]In summary, the controller determines whether the gripping force meets the double judgment of the preset conditions and the switch status information to realize the opening or not of the power tool, which can identify the user of the electric tool is a child or non-child, if If you are children, you don't start the electric tool. If you are non-child, turn on the power tool directly, so you can avoid children to turn on electric tools without guardians, causing safety hazards and property damage, which can effectively protect children's personal safety and Stability. At the same time, when the machine is turned on, there is no need to perform individual authentication, and the power tool does not take the case where the electric tool can be avoided in the case of being able to avoid children's greed or misuse. Additional operations are required for non-child doing need to turn on the power tool, or additional authentication is required.
[0088] The above description is merely a description of the preferred embodiments of the present invention, and any of the modifications and modifications of the present invention, according to the scope of the present invention, according to any modifications, modifications, and the scope of protection of the claims.
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Description & Claims & Application Information

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