5results about How to "Snap in" patented technology

The utility model provides an ammonia recovery treatment device for ammonia-containing industrial wastewater, which relates to the technical field of ammonia recovery treatment devices for ammonia-containing industrial wastewater and comprises a deamination tower, a water inlet pipe is arranged at the top of the deamination tower, a water outlet pipe is arranged on the outer surface of the bottom of the deamination tower, and a gas outlet pipe is arranged on the outer surface of the top of the deamination tower. A gas outlet pipe is arranged on the outer surface of the bottom of the deamination tower, convenient-to-replace devices are arranged on the top and the outer surface of the deamination tower, each convenient-to-replace device comprises a clamping hole rod, a threaded rod, two screw hole blocks, a sealing block, an elastic clamping block and two cushion blocks, and a detachable device is arranged between one end of the clamping hole rod and the outer surface of the deamination tower. According to the deamination device, the device convenient to replace is arranged, so that when the sealing block needs to be replaced, the sealing block can be replaced without detaching the conveying pipe from the water inlet pipe, and the replacement efficiency and the deamination working efficiency are improved.

The utility model provides a straw mat laying device for water and soil conservation, and relates to the technical field of straw mat laying devices, the straw mat laying device for water and soil conservation comprises a straw mat laying machine and a straw mat shaft, and the outer surface of the straw mat shaft is rotatably connected with a straw mat roll. When the straw mat laying machine is used for laying a straw mat in the water and soil conservation treatment process, the threaded rod can be manually held to rotate to a certain position on the support according to the size of a straw mat shaft on a straw mat roll which is actually required to be used, and the straw mat is laid by the straw mat laying machine under the limiting action of the limiting telescopic rod. The two screw hole mounting blocks can be driven to move to a certain distance in opposite directions, so that straw mat rolls and straw mat shafts with corresponding sizes can be conveniently mounted on the screw hole mounting blocks, the straw mat rolls and the straw mat shafts can be conveniently paved, straw mat paving machines with corresponding sizes do not need to be replaced when the straw mat rolls with different sizes are paved, and the labor intensity of workers is reduced. The capital investment for manufacturing the straw mat laying machine is reduced, and the use adaptability of the straw mat laying machine is improved.

This invention relates to the field of power electronics technology, specifically to a switching relay control circuit and control method. The switching relay control circuit includes a signal control module, a power drive module, and a protection module. The signal control module receives an input control signal and outputs a drive signal. The power drive module responds to the drive signal by applying a first voltage to the relay coil to activate it, and automatically reduces the first voltage to a second voltage to maintain the activated state after activation. The second voltage is higher than the relay release voltage. The protection module provides unidirectional protection and voltage clamping for the circuit. This invention enables rapid and reliable relay activation, significantly reduces holding power consumption, and improves the circuit's anti-interference capability.

The utility model provides an anti-falling gamepad which comprises a body, a moving groove is formed in the body, a moving block is slidably connected to the interior of the moving groove, a connecting rope is fixedly connected to one side of the moving block, a rotating wheel is fixedly connected to the interior of the moving groove, and a protective belt is arranged at the bottom of the body. According to the anti-falling gamepad, when fingers are inserted between the two protective belts and the body, the two connecting ropes are driven to be connected with the two moving blocks to move towards one side in the two moving grooves, and meanwhile the multiple sets of reset assemblies are driven to move and extrude; and when the protective belt does not need to be used, the reset assembly pushes the end, connected with the protective belt, of the moving block to reset, so that the protective belt is attached to one side of the body, use of the body is not affected, and the comfort degree of the body in use is increased.

The utility model provides a preheating feeding structure of a horizontal injection molding machine, and relates to the technical field of preheating feeding structures of horizontal injection molding machines, the preheating feeding structure of the horizontal injection molding machine comprises a feeding hopper, and a preheating box is arranged on the outer surface of the feeding hopper. When a heating pipe in the preheating box is started to preheat materials in the preheating box, a motor can be started at the same time to drive a round rod, a scraping plate and a plurality of stirring rods to do vertical circular motion, and the materials in a feeding hopper are stirred and dispersed; a bevel gear at one end can perform meshing rotation on a bevel gear ring block, so that a stirring rod can be driven to perform transverse circular motion, materials, far away from a heating pipe, of a feeding hopper can also be conveyed to the position close to the heating pipe, preheating treatment can be conveniently performed on the materials, the materials in the feeding hopper can be uniformly heated through stirring, and the heating efficiency is improved. And the preheating treatment effect is improved, and later injection molding machining is facilitated.