11results about How to "Realize isolation protection" patented technology

The utility model discloses an unmanned aerial vehicle transportation frame which comprises a main frame. The main frame is assembled into a cubic structure by welding square tubes or connecting the square tubes through fasteners, and limiting tubes, fuselage limiting foams and wing limiting foams are arranged on the inner side of the main frame. The fuselage limiting foam and the wing limiting foam are provided with grooves matched with the fuselage, the wings and the bearing frame of the unmanned aerial vehicle; the limiting pipe is used for fixing the fuselage limiting foam, and it is ensured that the unmanned aerial vehicle is stably fixed. The bearing frame is installed on the fuselage limiting foam and supports the wing limiting foam, and the wing limiting foam fixes the wings in a layered mode. Universal wheels are arranged below the main frame, and a shock pad is arranged at the bottom of the main frame so as to reduce vibration in the transportation process. In addition, the main frame is connected with the detachable support through the fixing piece, the support can protect the blades, and meanwhile the main frame can be covered with the rainproof cloth conveniently. The large unmanned aerial vehicle transportation device effectively solves the problems that in the transportation process of a large unmanned aerial vehicle, fixation is not firm, shock absorption is insufficient, and movement is inconvenient, and has the advantages of being stable in structure and high in protection performance.

The utility model discloses a guide assembly for a low-voltage open cabinet drawer, which comprises a lining frame and a sliding block fixedly connected with the drawer, and the inner surface wall of the lining frame is fixedly connected with a sliding rail in sliding fit with the sliding block. According to the invention, the drawer piece is pushed to enable the sliding block to slide along the sliding rail, so that the connector on the drawer piece can be accurately connected with the socket in the cabinet body to complete the guiding of the drawer piece, and when the drawer piece is opened in a large scale, the sliding sleeve can be moved to slide along the sliding plate. The sliding sleeve and the clamping seat are fixed through the fastening rod until the clamping seat sleeves the outer side part of the sliding block to be fully loaded, and the clamping seat realizes local supporting and positioning of the sliding block, so that the weight of the drawer piece can be prevented from completely acting on a small-range area of the sliding rail, the rail is effectively prevented from deforming, and even after the drawer piece is completely combined with a cabinet body, the sliding rail is prevented from being damaged. The drawer can be stably closed by moving the clamping seat to the front side of the drawer piece.

This invention discloses a high-precision miniature Z-axis positioning platform for use in the field of precision platforms. By integrating an encoder, displacement sensor, and reader to construct a multi-level displacement monitoring system, it can compare the matching relationship between the voice coil motor command, the middle plate displacement, and the stage displacement under normal load conditions. When jamming occurs, it can assist in locating the fault source based on the displacement error and displacement curve status among the three. Furthermore, a clamping and tilting roller mechanism controlled by a miniature electric actuator and a drive motor is introduced. At the moment jamming is detected, the sample is actively clamped and lifted, causing it to disengage from the abnormally vibrating stage. This reduces the shaking and displacement of the sample caused by stage jamming, ensuring the stability of the sample during precision operations.

The high-stability glasses frame comprises a glasses frame main body, the glasses frame main body comprises a first split body and a second split body, the opposite faces of the first split body and the second split body are fixedly connected with a fixing sleeve and a connecting block respectively, and the outer surface wall of the connecting block is fixedly connected with a sliding strip. In the application, an operator assumes the frame main body at the front side of the eyes of the operator and pulls the split body I and the split body II at the same time, the sliding strip synchronously slides along the inner surface wall of the fixed sleeve until the central area of the lens is aligned to the eyes of the user, then the positioning rod is rotated to be screwed with the fixed sleeve, and the positioning rod is in contact with the outer surface wall of the sliding strip; the sliding strips and the fixing sleeves are fixed through contact friction between the open ends of the positioning rods and the outer surface walls of the sliding strips, so that the structural strength of the glasses frame body is guaranteed, the distance between the first split body and the second split body can be adjusted according to requirements, and the use range of the high-stability glasses frame is widened.

The utility model discloses an electric flame furnace head and electric flame range with it can restrain ozone, wherein, this electric flame furnace head includes panel and plasma electrode subassembly, is equipped with electrode sheath on the panel, the upper end of electrode sheath has the flame mouth, plasma electrode subassembly is located in electrode sheath, plasma electrode subassembly includes anode piece and cathode piece, the surface of anode piece and / or cathode piece forms nanometer -sized coating, wherein, nanometer -sized coating at least includes titanium dioxide layer, to the anode piece and / or cathode piece is isolated protection to the degradation ozone and nitrogen oxides in plasma flame, the electric flame furnace head and electric flame range with it can restrain ozone of the utility model, in keeping the efficient heating performance of arc plasma flame, effectively reduced the generation and emission of harmful gas, improved the security of use.

This invention discloses a laser welding device for the housing of an electromagnetic expansion valve with a valve core. The flat electromagnetic expansion valve housing with a valve core is inverted and fixed on a welding fixture and rotates. It also includes a valve core protection mechanism, which includes a heat-insulating positioning sleeve disposed inside the housing and located between the laser weld area and the valve core, a heat dissipation ring disposed on the fixture, and a covering heat dissipation base. There is an air heat-insulating gap between the heat-insulating positioning sleeve and the laser weld area. The heat-insulating positioning sleeve, together with the air heat-insulating gap, blocks the heat conduction from the laser weld area to the valve core. The heat dissipation ring and the covering heat dissipation base respectively guide the blocked heat to the outside of the electromagnetic expansion valve housing for dissipation, thereby forming a directional heat conduction path on the electromagnetic expansion valve housing from the laser weld area to the external heat dissipation ring and the covering heat dissipation base. This invention can effectively prevent the internal valve core from being deformed or damaged due to severe heat conduction during the circumferential welding process of the electromagnetic expansion valve housing, thereby improving the yield.

The utility model relates to a fire extinguishing system and device with low power consumption of a bus, which utilize the unilateral conductivity of a diode, the diode is not conducted without forward voltage difference during standby, and current can pass through normally after voltage difference conduction is generated during short circuit of the bus, so as to control the closing and opening of an isolation relay and carry out isolation protection on an extension module circuit. Circuit devices are few and can be easily added to an extension module circuit, additional isolation modules are not needed, each module can independently achieve isolation protection, on-site construction is more convenient, and the total cost is lower. Aiming at the characteristics of large action current and small holding current of the relay, the capacitor is used for storing energy to maintain standby high voltage so as to instantly provide large current for the relay to maintain the switch of the relay in an off state, the large resistor is used for providing small current to maintain the switch to be off, and the large resistor can also prevent the energy storage capacitor from attenuating alternating current signals on a bus. The power supply current at the moment of relay action is large, the power consumption current during maintenance is small, and the influence on bus alternating current signals is small.

The protection mechanism comprises a supporting table, a heating barrel, a hydraulic cylinder, a motor, a bearing rod, a heating rod and a stirring cutter, the right side of the bottom of the heating barrel is movably connected with the right side of the top of the supporting table through a shaft pin, and the bottom of the hydraulic cylinder is movably connected with the two sides of the left side of the top of the supporting table through shaft pins. By arranging the first screen plate cover and the second screen plate cover, the heating rod is sealed inside, so that when the heat of the heating rod is dissipated, the master batch is blocked by the first screen plate cover and the second screen plate cover and cannot be in direct contact with the heating rod, and the problem that the master batch can be in direct contact with the heating rod due to high temperature generated on the surface when the heating rod is heated is solved. The problems that a layer of master batch adheres to the surface of the heating rod, heat of the heating rod is dissipated too slowly, the local temperature of the heating rod is too high, and the heating rod is damaged for a long time are solved, and the effect of protecting the heating rod is achieved.

The utility model discloses a motor position adjusting device, which comprises a motor part and two groups of brackets, the two groups of brackets are respectively fixedly connected with the outer surface wall of the motor part through two groups of locking rods, the bottoms of the vertical ends of the two groups of brackets are fixedly connected with mounting racks, and the mounting racks are provided with groove paths. In the application, after the bracket is connected with the motor part, the horizontal position of the motor part needs to be adjusted according to the position of a screw hole in an external mounting base, the corresponding position on the transverse groove is aligned with the screw hole, and the fixing rod penetrates through the transverse groove and is screwed with the screw hole until the head of the fixing rod is tightly pressed on the top of the mounting frame; when the longitudinal position of the motor part is selected to be adjusted, the corresponding position of the longitudinal groove is selected to be aligned with the screw hole, and the fixing rod penetrates through the transverse groove and is screwed with the screw hole, so that the stability of mounting the motor part is ensured; and the horizontal position or the longitudinal position of the motor can be quickly adjusted according to use requirements.

The utility model relates to the technical field of chemical safety production, specifically disclose a kind of safety isolation plate for chemical safety, including mounting block and clamping block, further including isolation mechanism, isolation mechanism includes base, mounting frame, chemical isolation plate, extension plate and first nut, two groups of mounting frame are fixedly connected with base respectively, each mounting block is fixedly connected with corresponding mounting frame respectively, each clamping block is fixedly connected with corresponding mounting frame respectively, the number of chemical isolation plate is two groups, two groups of chemical isolation plate are respectively set in the two sides of two groups of mounting frame, the number of first nut is multiple groups, each first nut is respectively connected with corresponding mounting frame thread, and it is located in the side of corresponding mounting frame respectively, extension plate is detachably connected with two groups of mounting frame, and located in the upper end of two groups of mounting frame. Double protection is carried out through two sides chemical isolation plate, chemical isolation plate is detachable, structure is thin, convenient for storage and transportation, can effectively improve use flexibility.