Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

32results about How to "Enough free space" patented technology

Thin coal seam coal mining machine drum

ActiveCN105134206AIncrease coal loading rateExtended service lifeCutting machinesCoal miningDistribution rule
The invention discloses a thin coal seam coal mining machine drum composed of an end plate, a spiral blade, a drum hub, cutting teeth, tooth holders and the like; the diameter of the drum hub is increased from the drum bottom to the end plate in a hyperbolic sine mode, an included angle of the section of the spiral blade with an inner cylindrical surface of the drum hub is not a right angle, a coal facing face of the spiral blade is cambered in shape, the tooth holder of each cutting tooth is mounted on the coal facing face of the spiral blade by a bolt fixing manner, and only an alloy head part of each cutting tooth exposes outside the spiral blade enveloping scope. According to the drum, according to motion and distribution rules of coal bodies in the loading and transportation process, main reasons of wear failure of the current drum are combined, and a special drum hub contour line, the cambered surface deflection spiral blade and the detachable cutting teeth and tooth holders are combined, so that the drum coal loading rate is increased by more than or equal to 20%, the drum life is increased by more than or equal to 6%, and the drum is suitable for mining of thin coal seams with the coal seam thickness of less than 1.3 m and the strike pitch of less than 20 DEG. The drum has the advantages of compact structure, convenient use, good coal loading effect and long service life.
Owner:SHANDONG UNIV OF SCI & TECH

Spiral tube type air-air heat exchanger in circular passage

The invention discloses a spiral tube type air-air heat exchanger in a circular passage, and relates to the field of air-air heat exchangers. The spiral tube type air-air heat exchanger in the circular passage comprises a plurality of heat exchanging units which are evenly arranged in the circular passage in the circumferential direction of the circular passage. Cold air flow in the circular passage moves in the axial direction. Each heat exchanging unit comprises a hot air flow inlet air collecting pipe and a hot air flow outlet air collecting pipe which are arranged in the flowing direction of the cold air flow and a plurality of spiral heat exchanging pipes, wherein the two ends of each spiral heat exchanging pipe communicate with the hot air flow outlet air collecting pipe and the hot air flow inlet air collecting pipe correspondingly. The spiral heat exchanging pipes are distributed in sequence in the flowing direction of the cold air flow to form a heat exchanging pipe bundle. An outlet of each hot air flow outlet air collecting pipe and an inlet of each hot air flow inlet air collecting pipe are located at the same end of the corresponding heat exchanging unit and penetrate through the inner wall or the outer wall of the circular passage. The other end of each heat exchanging unit is a free end.
Owner:XI AN JIAOTONG UNIV

Optical cable branch line protection structure

The present invention discloses an optical cable branching protection structure. The optical cable branching protection structure comprises: a main optical cable, a plurality of sub-optical cables formed by branching the main optical cable, and a deconcentrator sleeved at the outside of the branching of the main optical cable and a plurality of sub-optical cables. A junk ring bush compressing a coating layer sleeves the outside of the main optical cable section, and the sub-optical cable sections have no a junk ring bush. Aramid fibers are located between the coating layer and the steel pipe, and the movement of the aramid fibers may be effectively utilized to make optical fibers in the main optical cable have enough free activity space, so that the optical fibers have enough length to satisfy various usage environment and the optical performance and signal transmission effect of the optical fibers are ensured. According to the invention, single core fibers and aramid fibers are located in the steel pipe, the steel pipe and the coating layer are integrated into one body to fix with a thermoplastic pipe, and the length of the outer coating layer may be determined; and when a branching is made, length of each single core sub-optical fiber is controllable, and the length consistency of the branch sub-optical fiber may be effectively ensured.
Owner:SHENZHEN ACE ARMORED CABLE CO

A thin coal seam shearer drum

ActiveCN105134206BIncrease coal loading rateConform to the law of distributionCutting machinesSpiral bladeEngineering
The invention discloses a drum of a thin coal seam shearer, which is composed of an end disc, a spiral blade, a drum hub, a pick and a gear seat, etc., and the diameter of the drum hub increases in a hyperbolic sine form from the bottom of the drum to the end disc. The angle between the section of the helical blade and the inner cylinder of the hub is non-right angle, the coal-facing surface of the helical blade is an arc surface, and the pick seat is fixed on the coal-facing surface of the helical blade by bolts, so that only the alloy head of the pick is exposed Outside the envelope of the helical blade. According to the movement and distribution rules of the coal body during the process of being shipped, the drum combines the main reasons for the wear and tear failure of the current drum, and combines the special hub contour line of the present invention, the arc-shaped skewed spiral blade and the detachable pick tooth seat, so that The coal loading rate of the drum is increased by more than 20%, and the life of the drum is increased by more than 6%. It is suitable for mining thin coal seams with a coal seam thickness of less than 1.3 meters and a strike angle of less than 20°. The drum has the advantages of compact structure, convenient use, good coal charging effect and long service life.
Owner:SHANDONG UNIV OF SCI & TECH

Child walking trainer

The invention discloses a child walking trainer which comprises two side support sets and a cross beam fixed between the two side support sets, wherein large walking wheels are installed on the sides,away from each other, of the two side support sets, two trundles are arranged at the bottom of each side support set, a supporting plate is fixed to the upper surface of the cross beam through two vertical sliding rods, a sliding seat capable of sliding is arranged on the sliding rods, a mounting plate is fixed to the front side of the sliding seat, a supporting seat and a waist positioner are mounted on the front side of the mounting plate, a chest positioner is mounted on the upper surface of the waist positioner through a supporting rod, a head support pillow is mounted on the upper surface of the chest positioner through a supporting hinge rod, a lead screw is mounted between the supporting plate and the cross beam, and the screw rod is matched with the sliding seat through the screwhole. By arranging the adjustable waist positioner and the adjustable chest positioner which are used for fixing or positioning the waist and the chest of a child respectively, a stable acting point is formed, the child can move synchronously and stably with the whole walking device through body movement, and therefore the hands of the child are liberated.
Owner:四川省康复辅具技术服务中心

A kind of children's walker

The invention discloses a children's walker, which comprises two sets of side supports and a beam fixed between the two sets of side supports. The sides of the two sets of side supports away from each other are equipped with large walking wheels, and the bottom of each set of side supports is provided with There are two casters, and the support plate is fixed on the upper surface of the beam through two vertical sliding rods. The sliding rod is provided with a slidable sliding seat. The front side of the sliding seat is fixed with a mounting plate, and the front side of the mounting plate is installed with a support Seat and waist positioner, the chest positioner is installed on the upper surface of the waist positioner through the support rod, the brain drag pillow is installed on the upper surface of the chest positioner through the support hinge rod, and the screw rod and the screw rod are installed between the support plate and the beam Cooperate with the sliding seat through the thread hole. In the present invention, adjustable waist locators and chest locators are respectively used to fix or position the children's waist and chest, thereby forming a stable focus point, and the child can move synchronously and stably with the entire walker through the movement of the trunk, thereby Free children's hands.
Owner:四川省康复辅具技术服务中心

Integrated gas injection micro-exhaust valve

PendingCN112361064ADon't worry about failureAir supply pressure is adjustableOperating means/releasing devices for valvesLift valveThermodynamicsExhaust valve
The invention discloses an integrated gas injection micro-exhaust valve. The integrated gas injection micro-exhaust valve comprises a protective cover, the bottom end of the protective cover is connected with a gas injection valve body through a bolt, a guiding shaft is installed in the protective cover, a limiting block is connected to the top of the guiding shaft through a bolt, and a spring isconnected to the bottom end of the limiting block; and a gas injection valve cover is connected to the top end of the gas injection valve body, a micro-exhaust valve seat is connected to the position,below the guiding shaft, of the gas injection valve cover, a gas injection valve element is connected to the bottom end of the gas injection valve cover, and the bottom end of the gas injection valveelement is connected with a micro-exhaust ball basket through a bolt. The gas injection micro-exhaust valve adopts an integrated structure and is composed of a gas inlet part and a micro-exhaust partlocated in the valve body. The gas injection micro-exhaust valve is simple in structural design, reliable in work and durable, the starting pressure of negative pressure gas suction is determined through the spring, the position of the limiting block can be adjusted through double nuts on the upper portion so that the stroke of the spring can be controlled to achieve the effect that the gas supplementing pressure can be adjusted, meanwhile, the spring is not in water, and spring failure caused by water erosion does not need to be worried about.
Owner:WATTS VALVE CHANGSHA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products