42results about How to "Avoid short circuits etc." patented technology

The invention proposes a convenient wire clip. The convenient wire clip comprises a bottom buckle and a top buckle, wherein the bottom buckle comprises a first arc plate, a first positioning plate and a second positioning plate, wherein the first positioning plate and the second positioning plate are both arranged on the first arc plate, a limitation clamping block is arranged at one end of the first positioning plate, a limitation shaft is arranged on the limitation clamping block, the axial direction of the limitation shaft is parallel to the axial direction of the first arc plate, the limitation shaft is arranged on one side, far away from the first arc plate, of the first positioning plate, a limitation hole is formed in the second positioning plate, the shape of the limitation hole is rotatably matched with the shape of the limitation shaft, the top buckle comprises a second arc plate, a third positioning plate and a fourth positioning plate, the third positioning plate and the fourth positioning plate are both arranged on the second arc plate and are arranged on two opposite sides of the axial line of the second arc plate, the third positioning plate is detachably arranged on the first positioning plate, the fourth positioning plate is detachably arranged on the second positioning plate, and the first arc plate and the second arc plate protrudes towards directions which the first arc plate and the second arc plate deviate from each other. The convenient wire clip has the advantages of simplicity in structure and high safety, and is convenient to use.

The embodiment of the invention provides a battery type identifying method and device and a power system, and relates to the technical field of batteries. By means of the battery type identifying method and device and the power system, by receiving an attribute parameter signal sent by a rechargeable device, and then demodulating the attribute parameter signal to obtain a type identifying signal,the center frequency of the type identifying signal is obtained, when the difference value of the center frequency and the preset frequency is smaller than or equal to a preset threshold value, a mismatching signal is generated to remind that a charger of a user is not matched with the rechargeable device, the occurrence of a short circuit and the like is avoided, and the safety coefficient of thepower system is increased; meanwhile, since the attribute parameter signal is a photoelectric signal, an electric quantity signal or the type identifying signal or the like can be transmitted, the type identification of the rechargeable device is achieved without addition of a data transmission terminal to the rechargeable device, and thus the size of the rechargeable device can be easily reduced; meanwhile, the cost for manufacturing the rechargeable device is saved.

The invention discloses a secure motor framework, of which the constitution comprises an upper framework plate (1) and a lower framework plate (2) which are capable of being buckled with each other; the upper framework plate (1) comprises an upper plate body (3), a plurality of plugging studs (4) and a plurality of mounting studs (5) are arranged on the upper plate body (3), and the side parts of the plugging studs (4) and the mounting studs (5) are provided with limiting strips (6) used for limiting the movement of varnished wires. The secure motor framework provided by the invention has the advantages that the use is safe and stable, and the service life can be guaranteed.

The device includes a coupling coil T1, two identical resistances R1 and R2 as well as two identical capacitors C1 and C2. One end of the C1 is connected to system to be measured, and after connecting to R1, positive and negative ends at primary side of T1, and R2, C2 in sequence, the other end of the C1 is connected to system to be measured. Positive and negative ends of coupled output end of T1 are connected to collecting device. The invented device also includes a switch between negative end of coupled output end and ground. The switch is on if output end in 75 ohm, and the switch is off if output end in 125 ohm. the advantages are obstructing influence on original signal, improving waveform of collected signal, avoiding short circuit etc.

The invention discloses a construction method for protecting municipal pipelines, comprising the following steps: S1, excavating a detection trench at one end of a construction road section, searching for the municipal pipeline and determining the length direction and height position of the municipal pipeline; S2, digging the surface of the construction road section Mark the municipal pipeline length laying area of ​​the construction section; S3. Use excavation equipment to dig a construction channel on one side of the municipal pipeline length laying area; S4. Mark the municipal pipeline height laying on the side wall of the construction channel close to the municipal pipeline area; S5. Use excavation equipment to excavate hollow grooves under the high-level laying area of ​​municipal pipelines; S6. Use drilling equipment to drill loose holes above the high-level laying area of ​​municipal pipelines; S7. Use drilling equipment to lay the length of municipal pipelines Drill the cut-off hole on the side of the area away from the construction channel; S8. Use vibration equipment to perform vibration operation in the long laying area of ​​the municipal pipeline until the municipal pipeline is completely exposed on the surface of the construction section.