7results about How to "Spacing controllable" patented technology

The invention discloses a composite vertical crack and quasi-columnar gradient structure thermal barrier coating and a preparation method thereof, and relates to the field of material processing. The preparation method is carried out in a low-pressure cabin in a plasma spraying system under low vacuum conditions. The method obtains a plasma jet with a jet length of 1000mm-1800mm and a radial expansion size of 200mm-400mm by controlling relevant parameters; ceramic powder is sprayed by the plasma jet, and quasi-columnar structure ceramic coatings with different distribution densities are obtained by controlling different spraying distances, total gas flow rates, etc.; with the adjustment of the vacuum degree in the low-pressure cabin, the working current of the plasma, the total gas flow rate, and the spraying distance, the quasi-columnar structure ceramic coating is continuously pre-sintered, so that the composite vertical crack and quasi-columnar gradient structure thermal barrier coatings are directly deposited on the surface of a metal hot end component such as a high-temperature alloy, the vertical crack spacing of the composite coating is controllable, the bonding strength between the coatings is improved, and the thermal shock resistance is improved.

The double-track stepping type conveying mechanism comprises a track beam and a double-track track, the double-track track is horizontally installed under the track beam, a walking gap is formed in the extending direction of the double-track track, a double-track pulley hook penetrates through the walking gap from bottom to top, and a walking wheel matched with the double-track track is installed at the top of the double-track pulley hook through a pulley yoke; a poke rod capable of directionally reciprocating in the horizontal direction is arranged in the track beam, a wedge-shaped poke block is connected to the bottom of the poke rod, when the poke rod directionally moves in the extending direction, the wedge-shaped poke block can poke the pulley yoke to directionally move in a stepping mode, and when the poke rod reversely moves, the wedge-shaped poke block can deflect and reversely move to cross the pulley yoke. According to the double-track stepping type conveying mechanism, the carcasses can be conveyed one by one in the pre-cooling room in a stepping mode, the distance between the different carcasses is ensured, the conveying work efficiency is high, the quality of the carcasses can be ensured, and cross contamination between the carcasses is reduced.

The utility model discloses a battery cell heat insulation pad structure which comprises heat insulation foam, and the heat insulation foam is configured to be of a quadrangular structure and is provided with four corners; the plastic nails are respectively arranged at four corners; the plastic nails are integrated at the corners of the heat insulation foam in an embedded or semi-embedded mode. According to the heat insulation pad structure disclosed by the utility model, the plastic nails are additionally arranged at the corners of the heat insulation foam, so that the battery cells in a CTP arrangement form can be consistent, the distance between the battery cells is controllable after the battery cells enter a box, the production efficiency is effectively improved, the production welding problem is avoided, and the material loss rate is reduced.

The invention discloses a controllable protective device for medical radiology department child examination, relates to the technical field of radiology examination protective instruments, and provides the following scheme that the controllable protective device comprises radiology examination equipment, and a radiology examination bed base is placed in a radiology monitoring area of the radiology examination equipment; and a protective radiological examination bed is arranged on the surface of the top of the radiological examination bed base. According to the X-ray equipment, the radiological examination bed base capable of linearly and electrically moving back and forth and left and right is arranged on the X-ray equipment, so that when a patient needs to avoid X-rays in an emergency, the X-rays are prevented from irradiating the patient by electrically moving the radiological examination bed base, and emergency risk avoiding type protection is achieved; the protective radioexamination bed is arranged above the base, the space for a patient to lie in is formed by the upper trunk lead baffle and the lower trunk lead baffle, and meanwhile, the distance between the lead baffles is controllable, so that the protective effects that a ray irradiation area is controllable and other parts of the body are prevented from being irradiated can be achieved.

The invention discloses a tunnel folding type lagging jack and a using method, and relates to the technical field of underground engineering, the tunnel folding type lagging jack comprises a lagging jack I, a lagging jack II, a spacing control screw rod and a spacing adjusting handle, the spacing adjusting handle is connected with a plurality of round holes formed in the top end of the lagging jack II, and the round holes are evenly distributed in the lagging jack II and the lagging jack I; and a plurality of spacing adjusting screw rods are connected between the arch frame I and the arch frame II. According to the tunnel folding type arch frame of the structure, the uniformity of the arch frame distance and the construction safety can be achieved, the supporting effect of a whole primary supporting structure is guaranteed, meanwhile, the supporting strength between the arch frames is improved through the distance adjusting screw rods, and the tunnel folding type arch frame has important significance for improving the arch frame construction safety and guaranteeing the construction quality.

According to the double-column structure based on the prefabricated cup foundation and the construction method of the double-column structure, a partition plate is arranged in a channel of the prefabricated cup foundation, a temporary supporting piece is arranged on the side face of a first prefabricated column, and a distance adjusting cushion block is installed on the side face of a second prefabricated column. And the prefabricated column at the joint cannot be matched with the prefabricated cup mouth foundation for use. The purpose that the double prefabricated columns share one prefabricated cup foundation on the premise that the distance between the double prefabricated columns is controllable is achieved, and the prefabricated assembly type design with the prefabricated cup foundation can be completely suitable for super-long buildings.

This invention discloses a double-layer film connection device and method for electrostatically formed thin-film reflective antennas, comprising multiple elongated main ribs evenly distributed around the center of the antenna. Each main rib has a columnar rib adjustment device mounted on its top, and an elongated rib plate is mounted on the top of the rib adjustment device. A rope-like first cable segment connects two adjacent rib adjustment devices, and a rope-like second cable segment connects two adjacent main ribs. A vertical cable connects the first and second cable segments. A columnar cable-film connection device passes through the connection point between the first cable segment and the vertical cable. A suspension support frame is provided at the top edge of the main rib. This invention eliminates the need for cutting and splicing electrode films. Using the cable-film connection device of this invention, cable nets, entire electrode films, and entire reflective films can be connected, eliminating the tedious and crude manual pasting operation.