13results about How to "Enhanced surface contact" patented technology

The present invention relates to a floor, in particular to a double-layer composite floor and a preparation method thereof; belonging to the technical field of floor manufacturing. It comprises a hard core layer and an elastic surface layer, wherein the elastic surface layer covers the hard core layer at least on the upper surface and part of the side surface of the floor; and a matching structure is formed between the hard core layer and the elastic surface layer; the matching structure comprises a plurality of unit elements formed on the surface of the hard core layer and a plurality of corresponding elements formed on the surface of the elastic surface layer; the unit element is a strip structure with a convex or concave cross-section arranged along the length direction of the floor. The present invention arranges a matching structure between the elastic surface layer and the hard foam core layer, so that the elastic surface layer is firmly covered on the hard foam core layer, so that the present invention has the advantages of both the hard foam core layer and the elastic surface layer, and has high compressive strength and good surface contact.

The invention relates to a solar cell and a preparation method thereof. The solar cell comprises a semiconductor substrate, wherein the semiconductor substrate is provided with a first surface and a second surface which are oppositely arranged; a hole transport layer and an electron transport layer, the hole transport layer and the electron transport layer are arranged on the first surface at an interval, the material of the hole transport layer comprises vanadium oxide, and the material of the electron transport layer comprises titanium oxide; the first passivation layer is located on the surface, away from the semiconductor substrate, of the hole transport layer; and the second passivation layer covers the surface, far away from the semiconductor substrate, of the first passivation layer, the surface, far away from the semiconductor substrate, of the electron transport layer and the first surface. According to the solar cell, a good electric contact effect between the electrode and the semiconductor region can be achieved, and therefore the high photoelectric conversion efficiency of the IBC solar cell is achieved.

The invention belongs to the technical field of wire drawing machines, and discloses full-automatic polishing, wire drawing and grinding equipment which comprises a workbench, a triangular frame is fixedly installed at the top end of the workbench, a wire drawing belt is arranged in the triangular frame, three guide wheels are installed in the wire drawing belt, and a first rotating shaft is fixedly connected to the interior of each guide wheel; wherein a second rotating shaft is embedded into one of the first rotating shafts, first connecting blocks are fixedly connected to the outer wall of the second rotating shaft, the first connecting blocks are evenly distributed in an annular array, and the second rotating shaft is slidably installed in the triangular frame through an adjusting assembly. And the rotating block is rotated to enable the first connecting block to move into different guide wheels, so that different wire drawing belts are driven to move to perform wire drawing treatment on parts, different wire drawing belts are selected for treatment according to different parts, the damage to welding parts of the parts is prevented, and the attractiveness and the use performance of the parts are ensured.

The invention discloses a transformer pile head temperature measurement wire clamp and an installation method, and relates to the technical field of transformer power distribution devices. The transformer pile head temperature measuring wire clamp comprises a shell and a temperature measuring assembly, the shell comprises a pile head connecting part and a wire connecting part which are connected with each other, the wire connecting part is provided with an installation hole, the wire connecting part is provided with a first connecting hole, the first connecting hole is provided with a first fixing screw, the temperature measuring assembly comprises a temperature measuring probe, and the wire connecting part is provided with an insertion hole. The cable is provided with a jack, the temperature measuring probe is inserted from the jack, the cable is provided with a temperature measuring hole, the temperature measuring probe is detachably sleeved with a sleeve, the sleeve is filled with a heat conduction material, and the temperature measuring probe is movably sleeved with a scraper located in the sleeve. The installation method of the transformer pile head temperature measurement wire clamp comprises the steps of preparation, shell installation, temperature measurement assembly installation, testing and the like. The temperature measurement probe directly obtains temperature data in the cable or the inner core, the obtained temperature is more accurate, the temperature measurement effect is better, risk early warning is more accurate, and safety accidents are reduced.

The invention relates to the technical field of cast copper processing, and discloses a rapid cooling mechanism for cast copper processing, which comprises a cooling chamber, a first cooling water storage tank and a second cooling water storage tank, and the inner cavity of the cooling chamber is divided into a first cooling chamber, a second cooling chamber and a third cooling chamber; the top end of an inner cavity of the first cooling chamber is connected with a first spraying pipe through a first hydraulic telescopic rod, a first collecting box is placed at the bottom of the inner cavity of the first cooling chamber, and a steam discharging machine, a first water pump and a first refrigerator are arranged outside the first cooling chamber. According to the rapid cooling mechanism for cast copper machining, cooling water attached to the surface of a cast copper part is blow-dried through a water cooling and air cooling combined method, the cooling water makes contact with the surface of the cast copper part conveniently, the cooling efficiency of the cast copper part is improved, backflow water in different cooling stages of the cast copper part is cooled in batches, and the cooling efficiency is improved. The speed that the heated water participates in the circulating process is increased, and then the circulating cooling water amount is reduced.

The present invention discloses a liquid cooling plate, comprising a plate-like body, a liquid cooling cavity inside the plate-like body, a liquid inlet pipe and a liquid outlet pipe are respectively arranged on the upper and lower sides of the plate-like body, one end of the liquid inlet pipe is a liquid inlet, a plurality of liquid outlet holes connected to the liquid cooling cavity are arranged on the liquid inlet pipe along its length direction, one end of the liquid outlet pipe is a liquid outlet, at least two rows of spoilers are arranged in the liquid cooling cavity, the spoilers are arranged in the middle area between the liquid inlet pipe and the liquid outlet pipe, and heat dissipation fins are arranged inside the liquid cooling cavity, the heat dissipation fins are shoveled from the inner wall of the plate-like body, and the heat dissipation fins are distributed on both sides of the spoilers, and the external heat is transferred to the liquid cooling cavity through the plate-like body and the heat dissipation fins on the inner wall of the plate-like body, and then the heat is taken away by the circulating coolant inside the liquid cooling cavity. The liquid cooling plate of the present invention improves the sufficient fluidity and heat conductivity and heat dissipation of the coolant inside the liquid cooling cavity.

The present invention discloses a flexible electric actuator based on spraying non-metallic electrodes and a preparation method thereof; the ionic polymer intermediate layer is made by dissolving TPU colloid particles in a DMF solution and mixing them evenly with an ionic liquid in a certain proportion, and then dripping them on the surface of a specific glass container and drying them through a specific temperature program; the upper surface and the lower surface of the ionic polymer intermediate layer are covered with a layer of non-metallic electrode layer by an ultrasonic spraying process; the non-metallic electrode layer precursor solution is formed by uniformly mixing non-metallic conductive polymer materials, carbon nanotubes, dimethyl sulfoxide, ethanol and ionic liquids in a certain proportion, and the electrode layer precursor solution is attached to the upper and lower surfaces of the ionic polymer intermediate layer by an ultrasonic spraying process, and the spraying process is continuously heated by a hot stage. The present invention can not only be conveniently and conveniently carried out large-scale preparation and custom patterning at low cost, but also the actuation speed of the device will be better guaranteed.

The utility model discloses spreading and cooling equipment for camellia oil production, which comprises a spreading and cooling frame provided with supporting rods, supporting plates are arranged on the upper sides of the left end and the right end of the spreading and cooling frame, a translation mechanism is arranged between the two supporting plates, a translation block is arranged on the translation mechanism, a fixing block is arranged on the translation block, and the fixing block is connected with the supporting rods. A sliding column is horizontally inserted into the fixing block, supporting blocks are arranged at the two ends of the sliding column, first telescopic mechanisms are arranged on the lower sides of the supporting blocks, and the lower ends of the two first telescopic mechanisms are connected with a connecting rod in the same horizontal direction. According to the spreading and cooling equipment for camellia oil production, under the cooperation of all parts, materials can be turned over automatically, and manual operation is reduced.

The invention discloses a concrete compressive strength testing machine, and relates to the technical field of concrete compressive strength detection.The concrete compressive strength testing machine comprises a base, a center groove is formed in the middle of the top of the base, and supporting blocks are fixedly installed on the two sides of the top of the base; and the clamping assembly is used for positioning and clamping the concrete detection test piece. According to the concrete compressive strength testing machine, when concrete is subjected to strength detection, a worker places a concrete detection test piece in a clamping assembly, so that a concrete raw material is erected between a detection stamping part and a bearing assembly, then the worker starts a hydraulic machine, and the hydraulic machine drives the detection stamping part to move downwards; the concrete test piece placed in the clamping assembly is stamped, so that the compressive strength of concrete is detected, and when the concrete test piece is fractured due to stamping, chippings of the concrete test piece fall to the position above the bearing assembly, so that the fractured concrete is collected, and the situation that the chippings need to be cleaned frequently is avoided.

The present application provides a battery and a production method, the main structure of which is formed by the coordinated connection of a battery cell and a current collector, the battery cell includes a wound pole piece, and a plurality of sub-pole ears arranged on the pole piece are located at the end of the battery cell as the winding progresses, the current collector is used to connect with the end of the battery cell and match the shape of the battery cell, and the current collector is provided with multiple layers for connecting partitions corresponding to each segment of the sub-pole ears one by one, and each segment of the sub-pole ears can be surrounded and fixed on the corresponding connecting partition as the pole piece is wound, and when the sub-pole ears are fixed around the connecting partition, the gap between the teeth allows two adjacent teeth to approach. With such a configuration, the electrical conduction connection between the pole ears and the current collector in the battery production is achieved by the plurality of sub-pole ears surrounding the corresponding connecting partition and being fixed to the corresponding connecting partition, and the overall structural design avoids flattening the pole ears, and solves the problem in the prior art that the cylindrical battery has a short circuit risk and a low reliability of connection with the current collector due to the flattening of the pole ears during the production process.

The present invention relates to the technical field of coal mining, and in particular to an underground rock-breaking robot in a coal mine, comprising a fixed base and a main control box fixedly connected to the upper side of the fixed base, the main control box being provided with a hydraulic control system and an electric control system, a coal-breaking mechanism for crushing large coal blocks being provided above the fixed base, a fine-tuning mechanism for fine-tuning the position of the crushing mechanism according to the contact position characteristics of the coal blocks being provided on the upper side of the coal-breaking mechanism, a position-adjusting mechanism for adjusting the general position of the coal-breaking mechanism being provided between the fixed base and the fine-tuning mechanism, the coal-breaking mechanism, the fine-tuning mechanism and the position-adjusting mechanism adopted in the present invention being used in combination, can quickly and intelligently crush various special-shaped and large coal blocks, significantly improve the crushing efficiency of the coal blocks, be beneficial to the rapid transportation of the coal blocks, have high working efficiency, and be suitable for use in large coal mines.

Infusion systems (100) and related methods involving a catheter hub (102) and a male Luer connector (106) or a male closing cap (180) connectable to the catheter hub (102). The catheter hub (102) can be part of a catheter assembly (340) with a needle (342) and needle hub (344) and can include a valve (252), a valve opener (254), and a needle guard (366). The male Luer connector (106) can include a collar (108) that is fixed or rotatable relative to a male Luer tip (110). The collar (108) can have a conically shaped body. The catheter hub (102) can have a body having two centerlines that are angled to one another, or the male Luer connector (106) can have a body having two centerlines that are angled to another, or both the catheter hub (102) and the male Luer connector (106) each can have a body having two centerlines that are angled to one another. A support feature (146) can support the male Luer connector (106).

A bearing structure for a shielded electric pump includes: a rotating shaft (2) that rotates integrally with the rotor (12) of a motor unit (11); bearings (3a, 3b) that are embedded in a housing-side bearing housing (32a, 32b) provided in the pump unit (31) via an elastic thin plate (33), supporting the rotating shaft (2) in a vertical direction for free rotation; and bearing-supported members (4a, 4b) that are axially fixed between the rotor (12) of the motor unit (11) and the bearings (3a, 3b). The rotating shaft (2) is axially supported by bearings (3a, 3b) to be rotatable; and the impellers (6a, 6b) rotate integrally with the rotating shaft (2), and in a shielded electric pump (8) in which a portion of the liquid transported due to the rotation of the impellers (6a, 6b) flows between the rotating shaft (2) and the bearings (3a, 3b), an elastic reaction force is imparted axially when the bearings (3a, 3b) are pushed by the bearing-supported members (4a, 4b) to the side opposite to the rotor (12).