19results about How to "Reduced assembly effort" patented technology

The invention discloses a ball screw pair and a linear actuator, and belongs to the technical field of transmission structures, the ball screw pair comprises a nut, a screw rod and balls, a first spiral groove and a second spiral groove are matched to form a spiral raceway, a plurality of balls distributed in an extending mode are arranged in the raceway, the axial length of the nut is larger than that of a transmission part, and the screw rod is arranged in the screw rod. A groove is formed in the peripheral face of the transmission part, a return block is embedded in the groove, a part of the second spiral groove is formed in the outer side surface of the return block, a return channel communicated with the roller path is arranged between the inner side of the return block and the transmission part, and the balls moving to one end of the roller path return to the other end of the roller path through the return channel. The linear actuator adopts the ball screw pair. The balls complete circulation in the transmission part, a return structure does not need to be arranged on the nut, the structure of the nut can be simplified, the appearance of the nut is kept regular, and the balls cannot fall out of the roller path.

The present invention provides an aircraft carbon fiber composite bulkhead, which relates to the technical field of aircraft structure design. The bulkhead is an integral structure; the bulkhead includes a Z-shaped structure arranged at both ends thereof; the bulkhead includes a plurality of carbon fiber plies, and the ply angles of adjacent carbon fiber plies are different. The aircraft carbon fiber composite bulkhead provided by the present invention uses carbon fiber composite materials as materials, utilizes the excellent mechanical properties of carbon fiber composite materials, and combines the anisotropic characteristics of carbon fiber composite materials to reasonably arrange the ply angles of carbon fiber plies, and designs the bulkhead as an integral structure. On the basis of ensuring mechanical properties, the number of fasteners used is reduced, the assembly workload is reduced, the assembly difficulty is reduced, and the assembly precision and assembly efficiency are improved, thereby improving product quality.

The utility model relates to the technical field of nuclear power stations, in particular to an anti-deformation bracket for nuclear power station containment transportation. The nuclear power station containment transportation anti-deformation bracket comprises a truss and a supporting cushion frame. The truss comprises a plurality of main frame bodies, and the plurality of main frame bodies are sequentially connected end to end to form a main frame; the plurality of supporting pad frames are arranged at intervals, and are sequentially connected through the main frame; in every two adjacent main frame bodies, a first lifting lug is arranged on one main frame body, a second lifting lug is arranged on the other main frame body, the first lifting lug and the second lifting lug are connected through a first pin shaft after being matched, one of the first lifting lug and the second lifting lug is a single-side lifting lug, and the other one of the first lifting lug and the second lifting lug is a double-side lifting lug. The utility model provides an anti-deformation bracket for transportation of a containment vessel of a nuclear power station, which is used for preventing the containment vessel from being deformed in the transportation process.

The present invention relates to the field of switch cabinet technology, and specifically to a switch cabinet air chamber based on the integration of the main switch circuit, which is wear-free and low-impedance, and includes an air chamber shell, the left side, right side and upper side of which are respectively sealed and fixedly installed with a reference flange, a second outer cone sleeve and a first outer cone sleeve, the right side of the air chamber shell is fixedly installed with a sealed pole and a grounded static contact, the upper end of the sealed pole is fixedly installed with an isolating three-way static contact and an isolating static contact, the isolating three-way static contact is penetrated by a screw rod, and one end of the screw rod is sleeved with an isolating moving contact; the left side of the reference flange is fixedly installed with an isolating switch mechanism and a circuit breaker mechanism, the isolating static contact is electrically connected to the first outer cone sleeve, the sealed pole is electrically connected to the second outer cone sleeve, and the outer side of the reference flange is grounded. Compared with the prior art, the structural design and assembly method of the air chamber are simplified, and the problems of high impedance, troublesome disassembly and maintenance, and switch refusal to move in the past are solved.

The invention relates to a solar module region (110) of a solar module (100), the solar module region (110) comprising an array of solar cells (101, 201) arranged in substring pairs (104) arranged in a column direction of the array. Wherein each substring (104) comprises a plurality of solar cells (101, 201) electrically connected in series along a column in which the substring (104) extends, each substring pair (104) comprises two substrings (104) extending along the column, in particular adjacent columns, and electrically connected in series, and wherein all substring pairs (104) are electrically connected in parallel, each substring pair (104) comprising positive and negative terminals (105), the negative and positive terminals (105) of each sub-string pair (104) are arranged adjacent in a terminal connection portion of the solar module region (110), in particular of the solar module (100), such that the terminals (105) of the sub-string pair (104) form a sequence of terminals (105) having a sequence of polarities along the column, and wherein the negative and positive terminals (105) of each sub-string pair (104) are arranged adjacent in the terminal connection portion of the solar module region (110), in particular of the solar module (100), in such a way that the terminals (105) of the sub-string pair (104) form a sequence of terminals (105) having a sequence of polarities along the column. Wherein the polarity sequence of the terminal (105) comprises at least two polarity changes of an adjacent terminal (105), characterized in that the polarity sequence of the terminal (105) comprises the following polarity sequences: positive, negative, negative, positive, positive, negative, or a reverse sequence. The invention also relates to a solar module (100) comprising such a solar module region (110) and to a photovoltaic system (111).

The invention discloses a heat pump water heater control method, device and system and a water heater, and belongs to the field of heat pump water heaters. The control method is applied to the static heating type heat pump water heater, and when the heat pump water heater operates stably, the outdoor environment temperature and the condensation temperature are obtained; based on the operation mode of the heat-pump water heater, the theoretical water temperature of the upper portion of a water tank of the heat-pump water heater is determined according to the outdoor environment temperature and the condensation temperature, and finally the heat-pump water heater is controlled based on the theoretical water temperature. According to the scheme, a sensor does not need to be arranged on the upper portion of the water tank of the heat pump water heater, the temperature can be obtained only according to the outdoor environment temperature and the condensation temperature, in the production design stage, the assembly workload of the water tank temperature sensing bulb can be reduced, production and product material cost is reduced, production time is shortened, and production efficiency is improved; and various fault problems caused by the influence of the water tank temperature sensing bulb assembly can be avoided after sale.

The utility model provides a kind of multi-channel high integration low-cost tile type transmitting assembly, including tile type shell, input interface, microstrip line located in tile type shell interior and input interface are sequentially connected, microwave composite multilayer board, two branch networks are connected on microwave composite multilayer board and with microstrip line output end connection, first drive power amplifier, second drive power amplifier are respectively connected with the two output ends of two branch networks, first eight branch networks are connected with the output end of first drive power amplifier, second eight branch networks are connected with the output end of second drive power amplifier, 16-way transmitting channel and radio frequency output port connected with transmitting channel output end are respectively connected with the output end of first eight branch networks, second eight branch networks, the number of radio frequency output port is 16.The utility model is X frequency band 16 channel tile type high integration, high reliability, high consistency and with power amplification, numerical control phase shift and output detection etc. The utility model discloses a kind of multi-channel high integration low-cost tile type transmitting assembly, including tile type shell, output interface, microstrip line located in tile type shell interior and output interface are sequentially connected, microwave composite multilayer board, two branch networks are connected on microwave composition multilayer board and with microstrip line output end connection, first drive power amplifier, second power amplifier are respectively connected with the two output ends of two branch networks, first eight branch networks is connected with the output end of first drive power amplifier, second eight branch networks is connected with the output end of second drive power amplifier, 16-way transmitting channel and radio frequency input port connected with transmitting channel output end are respectively connected with the output end of first eight branch networks and second eight branch networks, the number of radio frequency input port is 16.

This invention discloses a surface cleaning device, belonging to the technical field of cleaning equipment. It includes a body and a floor brush. The floor brush comprises a brush body with a suction port and a clean water tank for supplying liquid, mounted on the brush body. A cleaning component is detachably installed on the front side of the brush body, and the suction port is located at the rear of the cleaning component. A wastewater tank is provided on the body. The lower end of the body is pivotally connected to the rear of the brush body via a hinge assembly. The front end of the clean water tank extends forward and at least covers the cleaning component. The rear end of the clean water tank extends backward and at least partially bypasses the hinge assembly to connect with the brush body. At least a portion of the bottom wall of the clean water tank extends continuously and smoothly from left to right, penetrating the central axis of the brush. This design eliminates the need for a connecting pipe, allowing complete drainage of the liquid in the clean water tank, increasing its capacity while simplifying its internal structure.

The invention discloses a ball screw pair and a linear actuator, and belongs to the technical field of transmission structures, the ball screw pair comprises a nut, a screw rod and balls arranged in a raceway, the axial length of the nut is larger than that of a transmission part, a return block is embedded in the peripheral surface of the transmission part, a return groove with the rotating direction opposite to that of the raceway is formed in the outer side of the return block, and the screw rod is arranged in the return groove. The roller path is divided into a plurality of single-circle closed circulation loops with spiral sections through the return grooves, and the balls move along the circulation loops so as to convert rotary motion of the nut into linear motion of the lead screw. The linear actuator comprises a casing, a stator module and the ball screw pair. The roller path is divided into a plurality of single-circle closed circulation loops with the spiral sections through the return grooves in the return blocks, the balls always move in the circulation loops, and the situation that the balls fall out of the roller path to affect the transmission stability of the structure is avoided.

This application provides a detachable positioning pin for power batteries, belonging to the field of new energy vehicle technology. The positioning pin includes a positioning post, a fixing bracket, and a connecting nut. The positioning post comprises multiple cylindrical segments of different diameters; the fixing bracket is detachably mounted on the positioning post and includes a U-shaped opening that mates with the cylindrical segments; the connecting nut is threadedly connected to the cylindrical segments. This positioning pin can be installed in just three steps: insertion, snapping, and tightening. Disassembly is performed in reverse. No complex tools or multiple people are required. Self-locking is achieved through a mechanical structure, reducing manpower and shortening assembly time. Simultaneously, the fixing bracket snaps into the positioning post through the U-shaped opening, and the two limiting flanges naturally conform to the two sides of the battery pack mounting point, forming a lateral constraint and preventing the fixing bracket from sliding or rotating along the battery pack surface. This ensures a rigid connection between the bracket and the battery pack mounting point, guaranteeing the axial perpendicularity and positional accuracy of the positioning post.

The invention relates to a force feedback actuator for a steering column of a vehicle, comprising a magnetorheological brake (1), the magnetorheological brake (1) having a shaft (2) arranged along an axis of rotation, and a rotor (4) and a stator (3) arranged around the shaft (2), a magnetorheological medium being arranged in a receiving space (5) formed between the stator (3) and the rotor (4), wherein the rotor (4) has at least a first and a second rotor half (4a, 4b) which are connected to one another in a forward connection.

The present disclosure relates to an endoscope (2) comprising: a proximal endoscope handle (4) or interface; an insertion cord (6) configured to be inserted into a body cavity of a patient; and a working channel (14). The endoscope handle (4) or interface comprises an aspiration valve (26) configured to control aspiration through the working channel (14) and having a valve closed state and a valve open state. The suction valve (26) includes a valve body (42) having a valve cartridge (44), an inlet (38) connected to the working passage (14), and an outlet (40) provided and configured to be connected to a suction device (P). The suction valve (26) comprises a valve stem (56) axially movable in the valve cartridge (44) at least between a first position in which the suction valve (26) is in a valve closed state and a second position in which the suction valve (26) is in a valve open state. The valve stem (56) includes a curved flow guide (78).

The utility model belongs to transformer manufacturing field relates to a single -column coil single -phase autotransformer oil tank insulating paper board assembly structure, and the fixed base with internal thread hole is welded on the oil tank lateral wall, and the insulating screw rod is screwed in the internal thread hole of fixed base, and the insulating screw rod end passes through the through -hole one on outer insulating paper board, and the bracing piece is long strip structure, and the waist hole corresponding with insulating screw rod is seted up on bracing piece, and the round silk hole is also seted up on bracing piece, and the insulating screw rod end is screwed in the round silk hole of bracing piece, and the insulating screw rod end passes through the through -hole two on middle layer insulating paper board, and the insulating nut is screwed on the insulating screw rod, and the through -hole three corresponding with insulating screw rod is seted up on inner layer insulating paper board, and the insulating screw rod end passes through the through -hole three on inner layer insulating paper board, and the insulating nut is screwed on the insulating screw rod. The utility model bracing piece adopts horizontal integral structure, and multilayer insulating paper board does not need to break, and the assembly workload is reduced.

The invention relates to a multi-way valve (1) for controlling the flow of a liquid and / or gaseous medium, comprising at least one valve housing (2), at least one inlet (22) for the inflow of the medium, at least one outlet, in particular at least two outlets (23, 24), for the outflow of the medium, and at least one valve disk, the at least one valve housing (2) comprises at least one chamber (210, 211), and the at least one valve disc is used for controlling a flow of a medium in the direction of the at least one chamber, in particular at least two chambers (210, 211), and the at least one actuator (3) is used for driving the at least one drive shaft (4). According to the invention, the valve housing (2) is multi-part, a first part (20) of the valve housing comprises at least one inlet (22), a second part (21) of the valve housing comprises at least one outlet (23, 24) and at least one chamber (210, 211) assigned thereto, and at least one drive shaft (4) is supported in the valve housing (2).

The invention relates to a high-speed electric machine for a motor vehicle, comprising a stator and a rotor which is rotatably mounted relative to the stator along an axis, the stator comprising a stator yoke and stator teeth, the stator teeth being connected to the stator yoke in a force-fitting and / or form-fitting manner, the rotor comprises sheets which form a laminated core and are laminated in the axial direction, the laminated core comprises at least two receiving spaces in the radial direction relative to the axis, a permanent magnet is arranged in each receiving space, the corresponding permanent magnet is inserted in the corresponding receiving space in a force locking mode, and the permanent magnets are arranged in the receiving spaces. The laminated core with the permanent magnets has a circular outer contour in the radial direction with respect to the axis, wherein the rotor is enclosed by a retaining strip for fixing the permanent magnets in the laminated core.

The utility model belongs to aerospace technology field, concretely relates to a propeller integral forming die, the utility model discloses a propeller integral forming die includes first mould and second mould, and the first mould has the profiling groove, and the second mould has the profiling boss, and the second mould and first mould buckle and connect, and the profiling boss is used for and the profiling groove plug-in and form propeller forming cavity. Using the propeller integral forming die in the technical scheme can realize the integrated forming of propeller, and the propeller prepared using the propeller integral forming die can significantly improve the structural reliability of equipment propulsion system, reduces the assembly error, and is convenient for dynamic balance debugging.

The utility model belongs to the field of heat exchangers, and discloses a shell-and-tube heat exchanger and a mariculture heat pump unit adopting the shell-and-tube heat exchanger, the shell-and-tube heat exchanger comprises a tube box, a tube plate, a heat exchange tube bundle and a heat exchanger cylinder, and the heat exchanger cylinder comprises a heat exchanger cylinder A and a heat exchanger cylinder B which are connected through a cylinder flange and a threaded fastener; the mariculture heat pump unit comprises a compressor, a condenser, an expansion valve and a shell-and-tube heat exchanger which are connected through a refrigerant pipeline. A bottom support of a heat exchanger cylinder is fixedly connected with a unit frame through a threaded fastener. When the heat exchange tube bundle needs to be cleaned or overhauled, only one section of the barrel needs to be disassembled and assembled, so that the workload of disassembly and assembly is small, the cleaning operation efficiency is high, the required working space is small during the cleaning operation, and the field operation is convenient.

The utility model provides a water pumping test device which comprises a weir box and a machine frame, the weir box is installed on the machine frame, wheels are installed at the bottom of the machine frame, a clamping mechanism is installed on the machine frame, and a vertically-distributed submersible pump is fixedly clamped by the clamping mechanism. An electric winch, an electric pipe winder wound with a water pipe and an electric winder wound with a cable are fixed on the rack, a steel rope of the electric winch is fixedly connected with the submersible pump, the free end of the water pipe and the free end of the cable are both connected with the submersible pump, and a rotary joint of the electric pipe winder is connected with the weir box through a connecting pipe. A tripod does not need to be temporarily built on a water pumping test site, the site assembly workload can be reduced, operation is convenient and fast, the early-stage preparation time can be shortened, and the labor intensity of workers can be reduced.