13results about How to "Does not affect strength" patented technology

This invention provides a system for monitoring and removing scale from the inner wall of HVAC water pipes, belonging to the technical field of HVAC systems. It includes HVAC water pipes, with an auxiliary removal component installed on the outer wall of the pipes to use ultrasonic vibrations to peel scale off the inner wall. In use, the auxiliary removal component allows the ultrasonic transducer to receive a high-frequency electrical signal from an ultrasonic generator, generating high-frequency mechanical vibrations. These vibrations propagate rapidly along the wall of the HVAC water pipe and are transmitted to the water inside and the scale adhering to the inner wall. Under the action of the high-frequency ultrasonic vibrations, the scale gradually peels off the inner wall, achieving the purpose of scale removal without causing significant mechanical impact or damage to the HVAC water pipe itself. Long-term use will not affect the strength and sealing of the HVAC water pipes, ensuring their safe and stable operation.

This utility model discloses a spiral-grooved vibration-damping tapered shank cutting tool, relating to the technical field of BT-type tapered shank cutting tools. Specifically, it is a spiral-grooved vibration-damping tapered shank cutting tool, comprising a flange and a BT-type tapered shank. The surface of the BT-type tapered shank is provided with spiral grooves, which are filled with elastic damping material. This spiral-grooved vibration-damping tapered shank cutting tool, by designing spiral grooves in the BT-type tapered shank and filling them with elastic damping material, utilizes the multi-head spiral structure of the spiral grooves to disperse vibration energy in multiple directions. At the same time, the elastic damping material absorbs high-frequency vibrations through shear deformation. This "rigid-flexible composite" structural design solves the contradiction between vibration suppression and structural strength in BT-type tapered shank cutting tools, and also provides high structural reliability without affecting the original strength of the BT-type tapered shank. It offers a BT-type tapered shank cutting tool that combines high rigidity, good vibration reduction performance, and low manufacturing cost.

The utility model discloses an insect-proof type light all-bamboo composite board which comprises a board body, the board body is composed of a face board, an insect-proof board and a base board, and the insect-proof board is arranged between the face board and the base board. The first connecting block is fixed to the left end of the plate body, a fixing strip is arranged on the lower end face of the first connecting block, a second connecting block is fixed to the right end of the plate body, and a limiting groove is formed in the upper end face of the second connecting block. According to the insect-proof type light all-bamboo composite board, the insect-proof board can be closer to the ground where a floor is laid, then the insect-proof effect is improved, the integrity and strength of the composite board are not affected, and the effect of prolonging the service life of the composite board is achieved.

The invention provides a high-strength complex-section cavity product cutting device which comprises a height adjusting mechanism, a radian adjusting mechanism, a follow-up mechanism and a cutting unit which are sequentially arranged from bottom to top. The cutting-off unit comprises a vertical cutting-off mechanism used for cutting off material belts on the two sides of the cavity product and a horizontal cutting-off mechanism used for cutting off a reinforcing rib structure in the middle of the cavity product. The invention further provides a cutting-off method which comprises the following steps: pre-punching and cutting off a process hole in advance in a material belt before rolling forming, and integrally cutting off a cavity product by adopting a regional secondary cutting-off mode after rolling forming. Follow-up continuous cutting of high-strength complex section type cavity products can be achieved on a rolling line, the cutting efficiency is high, the quality is good, the product rework rate is greatly reduced, and the service life of a cutter is remarkably prolonged; the device is flexible to use and high in universality, and can be adapted to cold-bending profiles with various different section types through replacement of the standard cutting head.

The utility model provides a head cover assembling and positioning structure and a helicopter, which are used for installing a head cover of the helicopter to a rack of the helicopter, and comprise a fixed column fixed on the head cover; the guide piece is fixed on the rack, a guide groove and a fixing hole located in the tail end of the guide groove are formed in the guide piece, and the guide groove is configured to guide the fixing column to enter the fixing hole. According to the hood assembling and positioning structure, the hood and the rack can be assembled more easily, and the risk that the hood cracks is reduced.

The utility model provides a one-way bearing structure which is applied between an input piece and an output piece, the one-way bearing is provided with a plastic mounting seat, a plurality of pin rollers and a metal conduction seat, the plastic mounting seat is provided with a plurality of mounting grooves which are arranged at equal intervals and are through in the radial direction, the pin rollers are accommodated in the opposite mounting grooves, and the metal conduction seat is connected with the pin rollers. And a plurality of conduction inclined surfaces corresponding to the mounting grooves are formed on the peripheral surface of the metal conduction seat corresponding to the plastic mounting seat, so that the rollers on the plastic mounting seat can selectively press the metal conduction seat by utilizing the opposite conduction inclined surfaces to generate a one-way driving effect. Therefore, the weight of the one-way bearing can be reduced by utilizing the plastic mounting seat which can be molded, and the effects of light weight, cost reduction and easiness in processing can be achieved under the condition that the strength of transmission power is not influenced.

The utility model relates to a building facade keel staggered hole fixing device which effectively solves the problem that the adjustability is poor when keels are installed in a staggered mode. According to the technical scheme, the sliding arm comprises two sets of sliding arm units, each set of sliding arm unit comprises a sliding block and a connecting arm, the sliding block is installed on a keel in a sliding mode, one end of the connecting arm is hinged to the sliding block, and the other end of the connecting arm is provided with a first hinge hole. The first hinge holes in the outer ends of the connecting arms of the two groups of sliding arm units are formed in the same embedded bolt or expansion bolt in a penetrating manner, and the compression nut is screwed at the outer end of the embedded bolt or expansion bolt to compress the end parts of the two connecting arms; the connecting piece can be connected with any bolt position, a long groove does not need to be formed in the keel, the strength of the keel is not affected, punching on site is not needed, installation is convenient, the connecting piece can adapt to an existing keel, and good universality is achieved.

The utility model belongs to the technical field of floors, and discloses a high-strength anti-static floor which comprises a frame, a floor body, connecting pipes, supporting leg assemblies and auxiliary supporting assemblies. Floors are fixedly arranged on the frames; the plurality of supporting leg assemblies are uniformly distributed and arranged to form a plurality of squares; the square support assemblies are jointly, detachably and fixedly provided with a frame. The frame is clamped with the four corresponding support assemblies; every two adjacent supporting leg assemblies are detachably and fixedly connected through a connecting pipe. An auxiliary supporting assembly is detachably and fixedly arranged below each frame. According to the utility model, rapid assembly of the connecting pipe, the supporting leg assembly and the frame is realized, and the working efficiency is improved; the ground is supported and protected through the frame, and the overall strength of the floor is improved; the frame and the floor can be supported in an auxiliary mode through the auxiliary supporting assembly, and the overall strength of the floor is further improved; the auxiliary supporting assembly is connected with the frame in a magnetic attraction mode, and rapid installation and positioning can be achieved.

The utility model belongs to the cabinet body protection material technical field, the utility model discloses a cabinet body PVC waterproof and moistureproof board, including board main part, the board main part is the hollow board of integrated molding, and the length direction of hollow hole of board main part is penetrated through board main part, the outside of board main part is covered with aluminium foil, and is provided with waterproof coating between board main part and aluminium foil. Through setting waterproof coating and aluminium foil, make waterproof and moistureproof board have good waterproof and moistureproof effect, can effectively prevent the penetration of water and water vapor, protect the cabinet body from the corrosion of water and water vapor, even acid and alkali environment, thereby improve the waterproof and moistureproof effect and corrosion resistance of cabinet body, thereby improve the use effect and service life of waterproof and moistureproof board.

The utility model discloses a high-strength steel structure wallboard which comprises a steel structure framework and a plurality of metal panels arranged on the outer side of the steel structure framework, and the steel structure framework comprises an upper cross beam, a lower cross beam and a plurality of vertical beams arranged between the upper cross beam and the lower cross beam. The upper end of each vertical beam is fixedly connected with the upper cross beam, and the lower end of each vertical beam is fixedly connected with the lower cross beam; each vertical beam comprises a plurality of sections of vertical beam units, and every two adjacent sections of vertical beam units are in butt joint in an end-to-end mode and are fixedly connected through a metal connecting piece. According to the steel structure wallboard, the steel structure framework and the metal panel are fixed together, so that the strength of the wallboard is improved, the wallboard is convenient to position and fix, it is guaranteed that the steel structure wallboard cannot shake when a worker fixedly installs the steel structure wallboard, the working efficiency of the worker for installing two steel structure wallboards is improved, and the labor intensity of the worker is reduced. The suspension time of the steel structure wallboard is shortened, and the safety of workers is guaranteed.

The application relates to the technical field of building plugging materials, and particularly provides a long-operable-time plugging material, which is prepared from the following raw materials in terms of total weight: 0.02-3% of a retarder, 0.005-2% of a calcium salt, 0.001-1% of a cellulose ether and cement supplementing to 100%. By optimizing the types of the retarder, the calcium salt and the cellulose ether and by stipulating the relative amounts of the retarder, the calcium salt and the cellulose ether, the quick-setting type plugging material has a relatively long retarding time, and the anti-bending performance, the anti-permeation performance, the bonding performance, the heat resistance and the freeze-thaw cycle resistance of the material after solidification are effectively improved.

The utility model discloses a kind of temperature and humidity detectors for seedling house, including detector body, the bracket is connected in the bottom of detector body, clamping plate is vertically arranged in the rear side of bracket lower part, clamping plate side is fixedly connected with bracket, shaft rod is transversely arranged in the front side of bracket lower part, one end of shaft rod is fixedly connected with bracket, shaft rod is oppositely arranged with clamping plate, extruding piece is rotatably connected in shaft rod, extruding piece is cylinder, extruding piece end surface is equipped with the shaft through-hole adapted with shaft rod, the cooperation of extruding piece and shaft rod is realized with the rotatable connection of shaft rod by shaft through-hole, shaft through-hole deviates the central axis of extruding piece and is close to the circumferential surface of extruding piece, the circumferential surface of extruding piece is fixedly connected with operating rod, and the central axis of operating rod is perpendicular to extruding piece. By the cooperation of extruding piece and clamping plate, frame body is clamped, so as to realize the purpose that detector body can be installed without punching.

The utility model discloses a tail plate casting structure in a die-casting machine. The tail plate casting structure comprises a casting part and a plurality of large steel bushings. A plurality of groups of hinge lugs are arranged on the casting part; the plurality of large steel bushings are correspondingly mounted on the plurality of hinge lugs; in any group of the hinge lugs, bosses are arranged on the outer sides of the two hinge lugs located on the two sides, and the bosses are suitable for being used as references when the large steel member is installed. The mounting structure has the beneficial effects that compared with an existing mounting structure for the steel bushings of the die-casting machine, the boss designed by the mounting structure can enable the large steel bushings to have a reference during mounting; meanwhile, due to the arrangement of the rough section on the large steel member, the large steel member can be installed in the hinge lug more firmly, and the position can be adjusted more conveniently, so that under the condition that the strength of the machine hinge is not affected, the manufacturing procedures of the middle plate and the tail plate and the product weight are reduced, the material turnover period is shortened, and the production cost is reduced. And the material and labor cost is reduced.