27 results about "Two step" patented technology

The invention belongs to the technical field of cleaning equipment, and provides a control method and device, cleaning equipment, a storage medium and a program product.The control method comprises the steps that in response to step obstacles detected by the cleaning equipment, depth information of a first step obstacle in the step obstacles is obtained; and based on the depth information, a rotating arm assembly of the cleaning equipment is controlled to execute corresponding obstacle crossing actions. Wherein the stair obstacles are provided with at least two stairs; the obstacle crossing action comprises the steps that the free end of the rotating arm assembly provides obstacle crossing assistance on the rear portion of a driving wheel of the cleaning equipment and / or the free end of the rotating arm assembly provides obstacle crossing assistance on the front portion of the driving wheel, and the first step obstacle is an obstacle which is close to the cleaning equipment and needs to cross the area first; the rotating arm assembly comprises a free end and a fixed end and can rotate or swing around the rotating center of the fixed end. And furthermore, the obstacle crossing stability and success rate of the cleaning equipment aiming at stair obstacles are improved.

The utility model discloses a conveying device and tissue selling equipment. The conveying device comprises a supporting mechanism and a pushing mechanism. The supporting mechanism comprises at least two step faces distributed in a high-low mode, and a connecting inclined face is arranged between the step faces. The step surfaces are used for placing a row of multiple products which are stacked up and down, and the products between the adjacent step surfaces are staggered up and down; and the pushing mechanism is used for pushing the lowermost product on the low step surface to move towards the high step surface along the connecting inclined surface. Therefore, when the pushing mechanism drives the lowermost product to move from the low position to the high position, the bottom product of the low step face can abut against the middle of the side face of the bottom product of the high step face, namely, the top face of the bottom product of the low position can be always lower than the top face of the bottom product of the high position. And one product at the bottom of the lower position can only push one product at the bottom of the higher position to move every time, and two products stacked up and down cannot be driven to move together. It is guaranteed that in the whole paper outlet process, the pushing mechanism can only eject out one paper towel bag, and paper can be smoothly output.

The present invention relates to a method for manufacturing a power semiconductor device by using a two-step thinning process, and to a method for manufacturing a power semiconductor device by using a two-step thinning process in which a support substrate having a high heat dissipation capacity is formed on a sapphire growth substrate thinned in two steps, thereby enabling the performance and reliability of the power semiconductor device to be improved.

The application provides a forming and machining method of a near-closed thin-wall snap ring, which comprises the following steps: firstly, designing the size of a process retaining section according to the size of a part; secondly, machining the process retaining section according to the size of the part; thirdly, cutting a material plate according to the size of the part body; fourthly, rounding the material plate according to the product diameter; fifthly, welding the process weld to obtain a cylinder for preparing the flanging forming; sixthly, in order to form a near-closed groove, the process needs to be realized in steps, that is, firstly, adopting a pre-formed U-shaped groove, and then adopting a flanging forming process; seventhly, supporting the process section in the process of flanging forming, and adopting a rolling forming method to form the product; eighthly, removing the excess material to ensure the width of the notch, and keeping the process section, which avoids the vibration of the cutter in the process of machining the thin-wall part, and better controls the deformation in the process of machining, so that good forming and machining sizes can be obtained; and ninthly, removing the process section, and forming the product in two steps, which realizes the economic and efficient machining of the near-closed thin-wall snap ring.

A carrier board for stair renovation is provided with at least one groove on its inner surface to form the respective step. The groove is rounded at its apex, or has a semicircular or lens-shaped profile, and is cut only to a depth that leaves 2 mm of the carrier material to stabilize the resulting edges. Two parallel grooves are milled into the carrier board, one on the right and one on the left. After the material is bent at a 90° angle in the area of ​​these grooves, a renovation double step is created. By creating rounded V-shaped grooves, directly heating these groove areas while simultaneously cooling the surrounding areas, and then bending the groove areas with the remaining carrier material and the decorative layer, a stable double step is created. This minimizes waste and yields two steps that can be installed on-site onto existing stair treads.If more than two grooves of this surface structure are arranged parallel in the bending area of ​​the stair tread, each of these grooves supports only a partial bending of the base plate up to the 180° angle being reached. The stresses that arise in the material due to the bending are thus minimized, largely preventing cracking or breakage of the stair tread.

The utility model relates to the technical field of ball mills, in particular to a stepped wet-type ball mill lining which comprises a first-order lining plate arranged on the inner wall of a ball mill and located at one end, close to a feeding port, of the ball mill, and a second-order lining plate arranged on the inner wall of the ball mill and located at one end, away from the feeding port, of the first-order lining plate. The third-order lining plate is arranged on the inner wall of the ball mill and located at the end, away from the feeding port, of the second-order lining plate, the section thickness of the second-order lining plate is different from that of the first-order lining plate, and the section thickness of the third-order lining plate is different from that of the first-order lining plate and that of the second-order lining plate. The whole service life of the lining plate is effectively prolonged, and meanwhile partial replacement under the condition that partial lining plates need to be replaced is achieved.

Methods and apparatuses are provided for the dynamic adaptation and sharing of random access channel (RACH) occasions in wireless communication networks for network energy savings (NES). A user equipment (UE) receives a configuration indicating whether a RACH occasion is shared between two-step and four-step random access. The UE receives information activating an additional RACH occasion, with an indication of whether it is shared. The UE transmits a two-step RACH preamble or a four-step RACH preamble in the additional RACH occasion based at least in part on the configuration or the information. The methods also include defining dedicated parameters for NES-capable UEs, dynamically indicating sharing properties of additional ROs, and allowing baseline ROs to adapt their sharing properties. Thus, the disclosed methods and apparatuses optimize resource utilization, reduce latency, and improve energy efficiency in wireless networks, ensuring efficient initial access and resource allocation while maintaining backward compatibility with non-NES capable UEs.

The embodiment of the utility model provides a cross ladder, and relates to the technical field of ladders of production lines. The striding ladder comprises two step ladder assemblies and a lap joint plate. One end of the lap joint plate is movably connected with one step ladder assembly, and the other end of the lap joint plate is movably connected with the other step ladder assembly; the lap joint plate can move in the Z-axis direction relative to the step ladder assembly. During use, the two step ladder assemblies are arranged on the two sides of the speed multiplication line respectively. And by arranging the lap joint plate, production communication of personnel on the two sides of the speed multiplication line can be facilitated, and the personnel can quickly cross the speed multiplication line and repair and maintain the equipment conveniently. The lap joint plate can move in the Z-axis direction relative to the step ladder assembly, the height of the lap joint plate can be conveniently adjusted according to the height of the speed multiplication line so as to be suitable for speed multiplication lines of various heights, and universality is improved.

Provided is a wafer jig including a bottom wall and a ring-shaped side wall. The bottom wall has a supporting surface. The ring-shaped side wall is connected to a periphery of the bottom wall. The ring-shaped side wall includes at least two step portions. The two step portions include a first step portion and a second step portion. The first step portion is connected between the supporting surface and the second step portion, and the first step portion protrudes along a direction toward a center of the bottom wall. The ring-shaped side wall surrounds the center. In addition, a wafer structure and a wafer processing method are also provided.

The application belongs to the technical field of copper pin processing, and discloses a high-precision copper pin and a processing equipment thereof. The copper pin is provided with two step surfaces at the tail section, and the two step surfaces are of the same height along the radial direction. The processing equipment for processing the copper pin comprises an injection mold capable of linearly sliding on a workbench to enter and exit an injection station; a blanking device arranged on the workbench for transferring the copper pin; and a transfer device slidingly arranged on the workbench for transferring the copper pin on the blanking device into an encapsulation cavity of the injection mold. The application is provided with two step surfaces at the tail section of the copper pin, and the pressure resistance and tensile resistance in the forward and backward axial directions are obviously improved. The encapsulation area is also enlarged through the two connected step surfaces, and the fastening degree is obviously improved. Since the bending and other processing methods are not used, the microcrystalline lattice of the copper pin does not change, and therefore the influence on impedance is relatively small, and the precision is high.

The utility model discloses a through hole axial component surface-mounted installation forming tool which comprises a base, a fixing block is arranged at the top of one end of the base, a through groove is formed in the top of the base in a penetrating mode, steps are arranged on the two sides of the top end of the base respectively, and the two steps are symmetrically distributed on the two sides of the through groove. The positioning assembly is arranged in the through groove and is used for positioning the component; the U-shaped positioning seat is rotationally connected with the fixing block and is used for fixing a lead in a component on the positioning assembly, and the width of the U-shaped positioning seat is equal to that of the top of the base; the U-shaped pressing block is located on the outer side of the U-shaped positioning seat, and the U-shaped pressing block is rotationally connected with the fixing block and used for bending and forming the lead on the component. According to the utility model, through the cooperation of the components, the sizes of the lead shoulders are completely symmetrical after the component is formed, and the leads at the two ends of the component can be bent and formed at the same time, so that the production efficiency is greatly improved.

The application discloses a kind of back channel step two times pre-excavation support and support back method, comprising the following steps: (A) determining the range of stress reduction zone in advance mining;(B) support in advance mining influence zone;(C) excavate the back channel of first half, excavate transfer chamber and corner;Excavation is carried out simultaneously with the support of first half back space and the equipment of first half back;(D) excavate the back channel of second half, excavate transfer chamber and corner;Excavation is carried out simultaneously with the support of second half back space and the equipment of second half back.The present application is in advance according to support stress curve in stress reduction zone before stopping mining line, and the back channel is excavated in two steps on site, and the back channel is excavated and the support is shielded to realize the synergistic effect.

The application discloses a chip packaging pin, which comprises a pin body, the pin body comprising a base material, a solder pad arranged on the base material, and an electroplated coating arranged on the surface of the solder pad; the pin body has two opposite end faces, and the two end faces are both provided with a first step structure; and the contact surface between the solder pad and the electroplated coating is provided with a second step structure. The chip packaging pin has the advantages that the first step structure is arranged on the two end faces of the pin body, the second step structure is arranged on the contact surface between the solder pad and the electroplated coating, the two step structures work in cooperation, the mechanical strength of the pin against deformation and peeling is improved while the integrity of high-speed signals is greatly improved, the contradiction between the extreme electrical performance and the physical reliability, which is difficult to be considered in the prior art, is preferentially solved, and the strict transmission requirement of super-high-speed signals such as PCIe Gen7 is met.

The application provides a transverse folding integrated slow-moving ladder, which comprises three parallel vertical plates, i.e. left, middle and right vertical plates, and step plates installed between two vertical plates, wherein the step plates are divided into left and right parts, the middle part is connected by a hinge and can be folded, and the two ends are hinged on the adjacent two vertical plates to form steps which are gradually raised; the step plate on one side of the middle vertical plate leads to the ground, the step plate on the other side leads to the opening of the shelter, and the two step plates are communicated at the opening of the middle vertical plate. The application can save space and meet the requirements of safety and comfort.

Tool (100) for injection molding a Fresnel stepped lens, wherein a mold surface (10) of the tool (100) has annular and / or annular segment-shaped steps (11) in a concentric arrangement, wherein the tool (100) comprises at least one die (2) with a casting surface (12) and an ejector element (3) received in a bore of the die (2) with a casting surface (13), wherein the mold surface (10) is formed by the casting surfaces (12, 13) of the die (2) and the ejector element (3), characterized in that the casting surface (13) of the ejector element (3) has a circular outline and forms a centrally arranged segment of the mold surface (10), wherein a circumferential gap (S) between the ejector element (3) and the die (2) separates two steps (11) of the mold surface (10) from each other.

The spliced ladder for the bathtub comprises at least two step structures which are arranged in a stepped mode, the adjacent step structures are connected in a spliced mode, each step structure is provided with an N-stage supporting frame and an N-stage platform, the N-stage platform is detachably installed at the upper end of the N-stage supporting frame, and the N-stage platform is detachably installed at the lower end of the N-stage supporting frame. A clamping piece is arranged at the upper end of the N-stage supporting frame, the N-stage platform is limited and fixed through the clamping piece, and anti-skid protrusions are arranged on the upper plane of the N-stage platform. By designing the step structure connected in a spliced mode, the bathtub platform is convenient to assemble and suitable for bathtubs of different heights, the platform is detachably installed on the supporting frame, and assembling is efficient.

The application provides a stepped labyrinth sealing structure with a shunt passage. The shunt passage is arranged between the two steps of the sealing bush, so that part of the airflow is backflowed into the shunt passage before the tooth top of the second step, thereby inhibiting the leakage of the airflow. The inlet of the shunt passage is arranged between the first step and the second step of the bush, and the outlet is arranged on the second step. After the airflow flows through the first step of the labyrinth, the airflow is divided into two parts, one part of the airflow flows to the second step along the original labyrinth passage, and the other part flows into the shunt passage. The airflow in the shunt passage is subjected to the frictional resistance of the wall surface, so that the pressure is reduced. The pressure at the outlet of the shunt passage is lower than the pressure in the tooth cavity between the first step and the second step of the labyrinth, so that the airflow is backflowed into the shunt passage before the gap between the tooth tops of the second step of the labyrinth, and the leakage flow of the airflow is reduced. The method can improve the sealing performance of the labyrinth without affecting other system functions, without changing the structural parameters such as the size and position of the labyrinth sealing, and the method is simple and feasible.

This invention provides a method for reinforcing steel reinforcement binding in shear walls encountering beams; including: Step 1, drilling and installing reinforcing bars at the foundation location; Step 2, chiseling the bottom of the beam and then bending and anchoring the vertical reinforcing bars (1) of the shear wall at the bottom of the beam; Step 3, setting equivalent reinforcing bars (3) between the vertical reinforcing bars at the bottom of the concrete beam, and setting short bars (4) 300mm below the floor slab along the location where the equivalent reinforcing bars are set; Step 4, chiseling at both ends of the concrete, repeating these two steps; Step 5, erecting the shear wall formwork, and pouring concrete for this part after reinforcement; Step 6, erecting the formwork at the variable cross-section location, and pouring concrete again after reinforcement. The method involved in this invention can not only shorten the construction period but also save construction costs, and has important significance for structural modification research.

The utility model discloses a sealing glue and water flux testing tool for membrane silk, which comprises a pipeline, three-way connectors, a Luer connector, an adapter and an injector, the membrane silk penetrating through the pipeline is placed in the pipeline, and two ends of the pipeline are respectively communicated with first interfaces of the two three-way connectors. The two Luer tapers are communicated with the second connector and the third connector of the three-way connector respectively, the discharging end of the adapter is communicated with the Luer tapers, and the discharging end of the injector is communicated with the feeding end of the adapter. By means of the tool, two steps of membrane wire glue sealing and water flux testing can be carried out in a centralized mode, on one hand, the situation that work is troublesome, labor-consuming and time-consuming due to independent operation is avoided; 2, excessive tools or equipment are not needed, so that the operation is simplified; and thirdly, the tool is simple in structure and convenient to operate, time is saved, and the working efficiency is greatly improved.

The utility model provides a kind of photovoltaic system, it is related to photovoltaic tile installation technical field, and photovoltaic system includes: multiple photovoltaic tiles;Keel, keel has first step surface and second step surface, first step surface is higher than second step surface, first step surface and the back light surface of at least one photovoltaic tile are in abutment, and second step surface and the back light surface of at least one photovoltaic tile are in abutment;Limiting piece, with keel connection, to limit fixed photovoltaic tile;Limiting piece includes: connecting portion, with keel connection by connecting piece;First limiting portion, with connecting portion connection, press set in the light receiving surface of at least one photovoltaic tile;Second limiting portion, with connecting portion connection, press set in the light receiving surface of at least one photovoltaic tile.The utility model's technical scheme, at least two photovoltaic tiles are in abutment with two step surfaces respectively, to realize front and rear step lap joint, photovoltaic tile and keel are connected by limiting piece, convenient for staff to separately dismount and maintain certain photovoltaic tile, it is favorable to reduce maintenance cost.

To provide a flower vase which can be simply and easily installed.SOLUTION: A flowerpot to be placed on a placement surface of an object, the flowerpot comprising: a main body including an accommodating portion configured to accommodate an object and a holding portion configured to hold the accommodating portion; and a support attached to the main body, wherein the holding portion includes a first step portion continuous with the accommodating portion, a second step portion having a step with the first step portion, and a step portion forming the step between the first step portion and the second step portion, wherein the flower vase can be installed such that the storage portion is located above a placement surface and a portion of the second step portion near a lower end is located below the placement surface.SELECTED DRAWING: Figure 1

The piston type electromagnetic valve comprises a valve body part, a movable iron core part and a piston part, the valve body part comprises a valve seat and a valve cover, and the valve cover is detachably connected with the valve seat; the inner wall of the valve cover comprises a connecting section, a first step part and a second step part, the connecting section is located between the first step part and the second step part, the first step part comprises a first step surface, and the second step part comprises a second step surface; the movable iron core part comprises a core body, the core body comprises a large-diameter section and a small-diameter section, and the diameter of the connecting section is smaller than that of the outer wall surface of the large-diameter section; the lower end face of the large-diameter section can abut against the first step face, and the piston component can abut against the second step face. And at least part of the outer wall surface of the small-diameter section is opposite to the connecting section. The stepped hole with the two stepped surfaces is formed in the valve cover, the stepped surface on one side can abut against the valve element component, and the valve cover and the valve element component are taken out together during disassembly and assembly; the step face on the other side can abut against the piston component to limit the stroke of the piston component.

1. Name of the product in this design: Electronic device code operation simulation graphical user interface. 2. Intended use of this design: for use in an electronic device. 3. The key design feature of this product is its graphical user interface. 4. The picture or photo that best illustrates the key design points: Design 1 front view. 5. Design 1 is designated as the basic design. 6. Purpose of the graphical user interface: to simulate code execution. 7. Description of the changing states of the graphical user interface: In the main view of Design 1, clicking "int a;" on the right enters Design 1's changing state diagram 1. At this time, the execution record and variable content on the left are empty. In Design 1's changing state diagram 1, clicking the next code "int n=0" enters Design 1's changing state diagram 2. At this time, the code has two steps. In Design 1's changing state diagram 2, clicking the next level option "n=0" of the code "int n=0" enters Design 1's changing state diagram 3. In the main view of Design 2, clicking "int a;" on the right enters Design 2's changing state diagram 1. In Design 2's changing state diagram 1, clicking "cout << "f" << endL" enters Design 2's changing state diagram 2. In Design 2's changing state diagram 2, clicking "cin >> a" enters Design 2's changing state diagram 3. In Design 2's changing state diagram 3, clicking the next level option "a=8" of "cin >> a" enters Design 2's changing state diagram 4.

A wafer fixture includes a bottom wall and an annular sidewall. The bottom wall has a bearing surface, and the annular sidewall is connected to the periphery of the bottom wall, including at least two steps. The two steps include a first step and a second step. The first step connects the bearing surface and the second step, and the first step protrudes towards the center of the bottom wall relative to the second step. The annular sidewall surrounds the center. Furthermore, a wafer structure and a wafer processing method are also mentioned. The wafer fixture, wafer structure, and wafer processing method of the present invention can avoid wafer deformation and damage and solve the problem of wafer incompatibility with equipment.

This application relates to an adjustable, age-friendly step, comprising a base layer and step units disposed on the base layer. Each step unit includes two step groups, staggered vertically. Each step group includes a lower step and an upper step. The lower step is fixedly disposed on the base layer, and the upper step is disposed on the lower step. A first connecting rod is hinged to the lower step, and a second connecting rod is hinged to the upper step. The first and second connecting rods are hinged together. A support component is provided on the lower step to drive the upper step to slide away from the lower step. A limiting component is provided on the first connecting rod to prevent relative rotation between the first and second connecting rods. A drive source is provided on the lower step to drive the first connecting rod to rotate, and a drive component is provided on the upper step to drive the second connecting rod to rotate. This application facilitates step height adjustment, making it easier for the elderly or people with leg disabilities to walk on steps.

An etching method includes forming a metal oxide layer that is a barium titanate layer or a strontium titanate layer over a substrate, and etching the metal oxide layer using atomic layer etching.