10results about How to "Avoid accidental activation" patented technology

The utility model discloses an automatic polyurea spray gun which comprises a shell, an air cap is installed at one end of the shell, and a piston type safety lock is installed at the other end of the shell. The air outlet is formed in the circle center of the air cap; the device further comprises a protection assembly. The protection assembly is composed of a closing piece and a connecting piece, the closing piece is arranged in the air cap and attached to or penetrates through the end face of the air outlet, and when the closing piece is attached to or separated from the end face of the air outlet, the end face of the air outlet can be covered, so that the air outlet is blocked, and external impurities are prevented from entering the air outlet. The connecting piece is arranged between the closing piece and the air cap; through the designed protection assembly, the air outlet can be blocked and closed in the idle state, various external impurities are prevented from entering the air outlet, meanwhile, accidental starting can be avoided, in the normal use process, the protection assembly can be jacked open by the air outlet, it is guaranteed that normal spraying is not affected, and the overall flexibility and practicability are high; the defects of an existing spray gun in use are overcome.

The invention relates to a valve arrangement, which: - has a first valve unit (24) with a monostable first main valve (16) pre-tensioned into a first switching position, and which is provided with a first pre-control valve (18); - has a second valve unit (25) with a monostable second main valve (17) pre-tensioned into a first switching position, and which is provided with a second pre-control valve (19); - and wherein both main valves (16, 17) together with the pressure sensors (31, 38) assigned to them form a monitoring configuration, so that a display of essentially the same pressure level at both pressure sensors can be detected as an IO case, in which both main valves (16, 17) are located in the same switching position, and conversely a display of different pressure levels at the pressure sensors (31, 38) can be detected as a fault case, in which both main valves (16, 17) are located in different switching positions relative to one another.

According to the technical scheme, the leather cutting head for the protection shoes is characterized by comprising an installation shell, a suction assembly, a cutting assembly and a safety assembly, the cutting assembly is rotationally connected to the installation shell, the safety assembly is slidably connected to the installation shell, and the suction assembly is installed on the side face of the installation shell and connected with the cutting assembly; use safety is guaranteed through the physical structure of the safety assembly, if an accident occurs in the cutting process, the safety assembly can be immediately used for stopping the cutting assembly, the cutting assembly allows the cutting head to automatically adjust the cutting-in angle according to a path through the rotating connection design, blade abrasion is reduced, edge smoothness is improved, and the cutting efficiency is improved. And the purpose that meat tendons and other places are cut without being clamped is achieved.

The invention discloses a motor control system with a dual power-on protection function. The system comprises a plurality of functional modules such as a power-on protection module, a current sampling and overcurrent protection module, a temperature detection module, a dormancy module and a self-checking module, can effectively monitor the running state of the motor, automatically performs system self-checking, and triggers a protection mechanism in time when an abnormal condition occurs. By means of dual power-on protection, overcurrent protection, over-temperature protection and other protection means, the safety and stability of the motor control system are effectively improved, equipment damage caused by mistaken starting, overcurrent protection, over-temperature protection and other faults is avoided, and it is ensured that a motor efficiently operates under the safe condition.

The present application relates to infusion pump technology field, especially infusion device control method, before the user starts to use the device, the self-locking type switch circuit is disconnected, the system is in zero power consumption complete power-off state, when the user starts to use the device, the trigger signal of opening the device is generated, the switch circuit is turned on and self-locked, and the control circuit is powered; thereafter, the system controls the subsequent process by accumulating the number of pulses sent to the drive mechanism: when the pulse number reaches the first preset value, the initialization is completed; when the second preset value is reached, the trigger of the needle assisting mechanism is completed, and the infusion needle is implanted into the human body; finally, according to the user setting infusion instruction starts infusion. The control method ensures the safety of the infusion device through the hardware barrier, realizes the automatic and accurate control of the initialization and needle assisting mechanism by using single pulse counting, and realizes the true zero standby power consumption, which significantly improves the safety, reliability and user experience of the infusion device.

The application relates to an inflator pump device, comprising: an air guide pipe; and an inflator pump body provided with a limiting part and a switch, the limiting part being configured to be capable of limiting the air guide pipe, and the switch being electrically connected to the inflator pump body; wherein when the air guide pipe is in limiting cooperation with the limiting part, the air guide pipe triggers the switch, and the inflator pump body is in a shutdown state; when the air guide pipe is separated from the limiting part, the air guide pipe is separated from the switch, and the inflator pump body is in a working state. The inflator pump device provided by the application can realize automatic start and stop of the inflator pump device through taking and placing actions of the air guide pipe, and solves the problems of complicated operation and low efficiency of a traditional inflator pump.

The utility model relates to the technical field of double-needle machines, and particularly discloses a garment processing double-needle machine which is characterized in that a wedge-shaped sliding block is slidably connected inside a garment processing table, a U-shaped limiting seat is fixedly connected to the outer surface of the wedge-shaped sliding block, a supporting column is fixedly connected to the lower end of the U-shaped limiting seat, and a mounting seat is fixedly connected to one side of the garment processing table; the lifting sliding block is slidably connected into the mounting base, the wedge-shaped through groove is formed in the lifting sliding block, the lifting sliding block is stepped down to slide downwards in the mounting base, when the lifting sliding block slides, the wedge-shaped through groove in the lifting sliding block pushes the wedge-shaped sliding block to slide towards the end close to the pedal body through the inclined surface, and the wedge-shaped sliding block drives the U-shaped limiting base and the supporting column to move. The U-shaped limiting seat is attached to the surface of the pedal body to limit the pedal body, accidental starting of the pedal body is avoided, the supporting column supports the pedal, damage caused by the fact that workers step on the pedal vigorously is avoided, and the safety of operators is guaranteed by limiting the pedal.

The utility model discloses a mechanical protection device for a pull rope switch of a belt conveyor, which comprises a front supporting leg, a rear supporting leg, two sliding plates, two sleeves and a sliding pipe, the front supporting leg and the rear supporting leg are parallel to each other and are vertically fixed on a rack of the belt conveyor, the two sliding plates are respectively connected with the front supporting leg and the rear supporting leg through locking bolts, and the two sleeves are connected with the sliding plates. A sleeve is fixed on each sliding plate, the middle part of the sliding pipe is connected with a handle locking plate, the two ends of the sliding pipe respectively penetrate through the two sleeves in a sliding manner, an adjustable locking plate is arranged on one side, opposite to the front supporting leg, of the lower end of the rear supporting leg, and the adjustable locking plate is connected with the handle locking plate through a lockset. The sliding pipe can be sleeved outside the reset handle of the pull rope switch of the belt conveyor, and is fixed on the rack of the belt conveyor through the sleeve, the front support leg and the rear support leg of the sliding plate, so that the reliable positioning of the reset handle is realized, the accidental starting of the belt conveyor caused by misoperation of the reset handle is avoided, the accident potential is eliminated, and the safety of the belt conveyor is ensured. And the safety of maintenance personnel is ensured.

The application discloses a portable tire inflator for a car, which comprises a convenient air pump, a control end arranged on the outer wall of the convenient air pump, a joint two arranged on the outer wall of the convenient air pump, a joint one butted with the joint two, and an inflator fixedly connected with the joint one, and further comprises an auxiliary device for strengthening the sealing effect when butting, wherein the sealing ring moves along the guide groove to the joint two direction, and the structure enables the sealing ring to be actively pressed at the gap between the joint one and the joint two after the connection and fixation are completed, so that effective radial or end face sealing is formed, the risk of high-pressure gas leakage is greatly reduced, and the inflating efficiency is ensured.

The present application relates to a control method of an electronic atomization device and an electronic atomization device, the method comprising: obtaining magnetic induction coding information, the magnetic induction coding information is coding information generated by a magnetic element connected to the shell of the electronic atomization device, and a change in magnetic field signal generated under a pressing operation; and controlling the locking and unlocking related states of the electronic atomization device according to the magnetic induction coding information. The user can generate a magnetic field change through a pressing operation to generate coding information to control the locking and unlocking related states of the electronic atomization device, which is not easy to be unlocked by children and can well prevent accidental startup, and has high reliability in preventing false startup.