11results about How to "Moderate weight" patented technology

The invention relates to the technical field of moso bamboo disease and pest control, and provides a backpack type movable quantitative liquid injector which comprises a back barrel used for containing liquid medicine. The water pump is arranged on the back barrel, and a water inlet of the water pump is communicated with the liquid medicine in the back barrel; the control end of the time relay module is electrically connected with the water pump, and the time relay module is used for controlling the starting duration of the water pump; one end of the pesticide supply pipe is communicated with a water outlet of the water pump; and the other end of the medicine supply tube is communicated with the injection needle. By means of the technical scheme, the problems that in the prior art, the carrying amount of liquid medicine is small, and the injection amount of the liquid medicine every time is unstable are solved.

The integrated screw-loaded roller adhesion coefficient tester comprises: a test wheel, a wheel frame, a positive pressure sensor, a braking force sensor, a disc brake, a pressure mechanism, and a frame; the test wheel is installed in the wheel frame; the pressure mechanism comprises: a screw rotating disk and a screw; the screw rotating disk is installed on the top of the screw; the positive pressure sensor is installed above the wheel frame at the top of the test wheel, and the bottom of the screw presses the positive pressure sensor; one end of the braking force sensor is connected to the wheel frame, and the other end is connected to the disc brake; one end of the disc brake is installed on the axle of the test wheel and can rotate around the axle, and the other end is connected to the braking force sensor. When braking, the braking force of the disc brake is fed back through the braking force sensor; two hook mechanisms are respectively arranged on both sides of the frame, and the frame is fixed to the inspection table through the four hook mechanisms. The present invention integrates the test wheel and the frame into an integrated screw-loaded roller adhesion coefficient tester, which has a moderate size and weight and is convenient to carry.

The utility model relates to the technical field of aquaculture, in particular to a substrate management system for an aquaculture pond, which comprises the aquaculture pond, an operation module, a traction module, fixing modules and a furling module, traction points are arranged on the peripheral side of the aquaculture pond, the operation module, the traction module and the furling module are sequentially connected, and a plurality of fixing modules are arranged around the aquaculture pond; the operation module enters the aquaculture pond and drives one end of the traction module to wind all the fixing modules from the traction point until one end of the traction module moves and is connected to the furling module; after the fixing module is detached, the winding module winds the traction module, so that the traction module is in contact with the bottom of the aquaculture pond, and the bottom turning effect of the aquaculture pond is achieved. The traction module is pulled through the operation module to avoid water equipment and sundries, cables are laid underwater in the aquaculture pond, then the traction module is wound through the winding module, the bottom of the pond is scraped and turned over through the traction module, and mechanical operation of substrate management is achieved.

The utility model relates to the technical field of radiation protection wall, especially to a multilayer composite radiation protection wall, which comprises: a concrete wall body serving as a basic structure of the multilayer composite radiation protection wall; a plurality of protection assemblies covering the inner side of the concrete wall body, which comprises: a polyethylene plate including an inner side facing the concrete wall body and an outer side facing away from the concrete wall body; an inner lead plate arranged between the inner side of the polyethylene plate and the concrete wall body; and an outer lead plate arranged on the outer side of the polyethylene plate. The scheme is used to solve the defects of the prior art, i.e., the whole lead plate of the radiation protection wall leads to inconvenient transportation, needs to be installed in advance, and is difficult to adjust according to the layout in the later period, so as to achieve the purposes of flexible adaptation to different use scenarios and improvement of the radiation protection effect.

The utility model relates to a combined down moisture-proof mattress which comprises an upper-layer cloth bag, a combined mechanism used for improving the heat preservation effect is arranged on the inner circumferential wall of the upper-layer cloth bag, a supporting mechanism convenient for air locking and supporting is arranged on the right side of the combined mechanism, and the combined mechanism comprises upper-layer down filled in the inner circumferential wall of the upper-layer cloth bag. A combined bag is sewn on the lower surface of the upper-layer cloth bag, and egg groove bottom plates are fixed to the inner top wall and the inner bottom wall of the combined bag. According to the combined down feather moisture-proof mattress, through the arrangement of a combined mechanism and the mutual cooperation of an upper layer cloth bag, upper layer down feather, an egg groove bottom plate, a lower layer cloth bag, lower layer down feather and the like, a human body sleeps on the combined down feather moisture-proof mattress, so that a down feather upper layer, a down feather bottom layer or an egg groove sponge bottom layer and an egg groove supporting middle layer can be attached to the maximum extent; air is locked, and the situation that cold air on the ground rapidly penetrates due to air convection, discomfort is brought, and even the risk of temperature loss is caused, and life is endangered is avoided.

This invention relates to the field of timber structure maintenance technology, specifically to a reinforcement and repair device and method for timber structures. It aims to solve the problems of loosening and breakage of existing timber structure connection nodes, cumbersome installation of reinforcement devices, poor adaptability, and low repair efficiency. The device includes a support component and a fixing connection component. The support component drives a clamping plate component via a gear and rack assembly to precisely clamp the timber structure column connection nodes. The fixing connection component uses a fixing ring and a threaded rod to apply tension to the column for fixation. Furthermore, the support column assembly can be flexibly adjusted in height to adapt to different node positions. The reinforcement and repair device has a compact overall structure and is easy to operate; the reinforcement and repair method is efficient, labor-saving, and highly operable, effectively improving the stability and safety of timber structure connection nodes, extending the service life of timber structures, and reducing maintenance costs and the labor intensity of workers.

The invention discloses an electrical test bracket for a drop-out fuse, relates to an auxiliary device for an insulation test of a circuit breaker, and aims to solve the problems of non-standard support, poor safety and low test efficiency of the conventional support device. According to the invention, two insulating pillars are vertically arranged on a metal chassis side by side; the number of the insulation clamping supports is two, the insulation clamping supports are correspondingly arranged at the top end of the insulation supporting column, each insulation clamping support is provided with a groove, and the two grooves are used for being matched with the connecting portions of the two ends of the drop-out fuse so that the drop-out fuse can be kept in a horizontal state. When the drop-out fuse is placed in the groove, the distance between the grounding end of the fuse and the ground is not less than 120cm. The beneficial effect is that the safety and the insulation reliability of the test process are significantly improved.

The utility model provides a sampling container for tobacco shred process inspection, and belongs to the technical field of cigarette production. Comprising a lower-layer storage container and an upper-layer storage container, an upper opening of the lower-layer storage container is connected with the lower edge of the upper-layer storage container through a thread structure, an inner cavity of the upper-layer storage container is divided into a plurality of upper-layer small storage cavities through partition plates, and an upper opening of the upper-layer storage container is covered with a sealing cover. The container is more reasonable in structural design and has better sealing performance and heat preservation performance; the functionality is more perfect, and a convenient handle and an identification area are arranged; the tobacco shred inspection device is higher in practicability, moderate in size and weight and relatively simple to clean and maintain, the tobacco shred inspection accuracy and efficiency are improved, and the production cost and the operation difficulty are reduced.

The present invention relates to the engineering field, and in particular to a combined formwork structure and construction method for the construction of a bidirectional variable-section rounded corner cable tower. It comprises a shaped straight plate, a tapered straight plate, a rounded corner formwork, a back rib, a movable corner formwork fixed plate, a vertical screw, a diagonal tie rod and a bidirectional top-supporting fastening rod, and adopts three forms of a shaped straight plate, a tapered straight plate and a curved plate, and follows the combination form of "straight plate wrapped in curved plate". In particular, improvements are proposed for the curved plate. The contact surface between the curved plate and the shaped straight plate is designed to be polished into a chamfered form on the outside, and is connected by abutment method to reduce joint misalignment and improve the appearance quality of the circular arc chamfers at the four corners of the tower column. The variable cross-section from bottom to top is adjusted by the tapered straight plate, and is easy to install and disassemble, with moderate weight, which improves production efficiency, saves costs, ensures engineering quality, and has significant benefits and good effects.

This utility model discloses a foldable, mobile, and lifting high-altitude construction platform for use in the crossbeam area of ​​bridges. It consists of a supporting crossbeam, a lifting system, a safety system, and a working platform. The supporting crossbeam is made of U-shaped square steel, equipped with a Z-shaped storage handle and a 360° rotating trolley for convenient handling and fine-tuning of the horizontal position. The lifting system uses a motor-driven steel wire rope to move the platform vertically. The safety system includes a safety steel wire rope, a safety device, and a counterweight, which can quickly lock and protect the platform in case of imbalance. The working platform consists of uprights, crossbars, and foldable diagonal braces, with a fall-prevention net suspended at the bottom to form a closed safety space. This utility model discloses a construction platform that requires no large equipment, is easy to install and store, and allows for precise adjustment of the working position. It effectively solves the problems of suspended working surfaces and high safety risks associated with working on high-altitude crossbeams, significantly improving construction safety and efficiency, and is suitable for the complex working environment of bridges.

This invention relates to the field of rotating equipment assembly technology, specifically disclosing a tool for disassembling and assembling the shaft of a cantilever centrifugal pump. During the disassembly process, the tool is placed on a horizontal working surface, with the drive end of the pump shaft facing downwards inside the tool. This allows the bearing housing flange to engage with the upper edge of the tool, facilitating the disassembly of the pump shaft. Using this tool, the bearing housing can be vertically fixed, enabling vertical disassembly and assembly of the pump shaft. The entire disassembly and assembly process ensures the perpendicularity of the pump shaft and bearing housing, preventing jamming and damage to the pump shaft and bearing.