10results about How to "Reduced dimensional accuracy requirements" patented technology

The utility model provides a kind of water outlet device with double-control waterway, including the body of middle passage, valve core being arranged in the body, further include the valve core seat being arranged in the body, electric control switch being installed on valve core seat;At least one water inlet channel is arranged in the valve core seat along vertical direction, and top end surface forms the mounting surface compatible with valve core;Valve core seat is provided with two water outlet channels passing through mounting surface, and side wall is provided with at least one water outlet communicating with water outlet channel;The outer periphery of valve core seat is provided with the first sealing installation groove for installing first sealing member, which is placed in the outer periphery of water outlet;Electric control switch is used to control the communication of one water outlet channel and water outlet.The scheme can control two waterways through electric control switch and valve core respectively, that is, when electric control switch fails, the opening and closing state of valve core can also be adjusted by handle, and then the water outlet of waterway is controlled.

This utility model provides a sparkling water shower head, including a shower head body and a sparkling water component. The outlet cover of the sparkling water component is provided with a through-threaded connecting groove on its periphery. So, regardless of the final installation angle of the outlet cover, the connecting groove can provide air to the water outlet body. This reduces the dimensional accuracy requirements of the outlet cover and its installation structure with a simple structure, and also reduces the complexity of installing the outlet cover, eliminating concerns about poor air intake.

The invention discloses a rigidity valve which comprises a valve seat, a valve block component and a guide sleeve. The guide sleeve and the valve seat are in limiting connection in the axial direction, the valve block component is inserted into the guide sleeve, and the valve block component can move in the axial direction relative to the guide sleeve so as to close or open a valve port part of the valve seat; the valve block component comprises a valve block and two sealing rings, the two sealing rings are arranged in the axial direction, the sealing rings are located between the valve block and the guide sleeve, and the sealing rings are fixedly connected with the valve block; the sealing ring is provided with a sealing lip, and the sealing lip is of an annular structure extending outwards from the peripheral face of the sealing ring. The inner hole part of the guide sleeve comprises a first inner hole section and a second inner hole section, and when the valve port part is closed by the valve block part, the first inner hole section and the second inner hole section are in sealing fit with the two sealing lips respectively. The sealing related component of the rigidity valve is simple in structure, low in requirement for size precision, capable of reducing machining difficulty and convenient to assemble.

This utility model discloses a dual-channel heating unit water heater, wherein the bottom of the shell is provided with multiple pairs of longitudinally arranged baffles, the middle part of the water tank is provided with a partition, the middle shell is fixed to the top of the water tank, each baffle is inserted into the water tank, and the bottom of each baffle abuts against the bottom of the water tank to form a reciprocating and narrow flow channel. Each baffle is also provided with concave and convex textures on the outer side, and each baffle also has a slot connecting to the top of the middle shell. Each slot extends to the front and rear ends of the baffle, and each slot is also provided with an inwardly protruding limiting part on the inner side to divide the slot into multiple insertion chambers. Multiple heating packs are inserted and fixed in the corresponding insertion chambers. This utility model optimizes the flow channel in the water tank by setting baffles integrated with the middle shell, thereby achieving the effects of improving the matching of the whole vehicle end, accelerating the flow rate of coolant in the water chamber, improving heat exchange efficiency, and preventing local overheating.

The utility model discloses a metal chip collection tool belongs to the field of aviation manufacturing maintenance technology, is the blocky integral structure, its bottom surface and structural member are pasted, its upper surface is made into the inclined plane that is inclined to head, and the front and rear metal chip lead-out hole is made between bottom surface and upper surface, and the opening of metal chip lead-out hole on the upper surface is the working groove hole, and the through hole is made as the contact groove hole at the working groove hole for the rivet or screw that is exposed for cutting, is used to; the circular groove is made to the tail end surface of metal chip collection tool, is used for connecting metal chip collection bottle, and the drill bit passes through working groove hole and contact groove hole and carries out cutting decomposition, and the metal chip enters metal chip collection bottle through metal chip lead-out hole and realizes collection. The utility model can collect the metal chip automatically while decomposing the rivet or screw, and the operation is simple, does not need to help pneumatics or electric device, improves the feasibility of operator's operation in the narrow space.

The utility model belongs to the technical field of mechanical power transmission devices, and particularly relates to a floating support bearing transmission seat which comprises a body, a mounting hole formed in the body and a clamping assembly detachably connected in the mounting hole. The clamping assembly comprises two thrust clamping arc blocks and a fixed clamping arc block, the fixed clamping arc block is detachably connected to the middle position of the bottom of the mounting hole, and the two thrust clamping arc blocks are distributed on the two sides of the fixed clamping arc block and detachably connected with the fixed clamping arc block; a dismounting hole aligned with the fixed clamping arc block is formed in the thrust clamping arc block in a penetrating mode, and an internal thread is arranged in the dismounting hole. And the thrust clamping arc block is matched with the top of the mounting hole to clamp the bearing. The bearing transmission seat is used for solving the technical problems that when a bearing and a rotating shaft are installed on an existing bearing transmission seat, extremely high assembly precision is needed, and the disassembly and assembly difficulty is large.

The application discloses a self-adaptive sleeve for hydraulic joint installation and an automatic positioning installation method, and relates to the technical field of hydraulic joint installation, in particular to a self-adaptive sleeve for hydraulic joint installation and an automatic positioning installation method. The self-adaptive sleeve for hydraulic joint installation comprises a stepped spring collet seat, the inside of the spring collet seat is sequentially provided with a first stepped square hole, a second stepped square hole, an inner cylindrical hole and an inner tapered hole from top to bottom along the vertical direction; the side length of the first stepped square hole is larger than that of the second stepped square hole, and the diameter of the outer circle of the second stepped square hole is larger than that of the inner cylindrical hole; a gas cylinder is arranged in the second stepped square hole and fixed on the top end face of the inner cylindrical hole; the spring collet is matched with the inner tapered hole of the spring collet seat, the spring collet is pulled upward and shrunk by the gas cylinder, and then the outer hexagonal size of different specifications of hydraulic joints is adapted, so that the auxiliary time caused by frequent replacement of the sleeve is avoided, and the technical problems that the existing automatic assembly unit of the hydraulic valve quick joint is complicated to install and needs manual assistance are solved.

The application provides a foot prop and an electric vehicle. The foot prop comprises a support assembly, a parking sensing assembly and a connecting piece. The support assembly comprises a mounting piece and a support rod, and the support rod is rotationally connected with the mounting piece. The parking sensing assembly comprises a fixed piece and a rotating piece which are rotationally arranged. The fixed piece is provided with a parking sensor, and the rotating piece is provided with a sensing body. The sensing body is arranged to trigger the parking sensor when the support rod props the ground. The connecting piece is used for connecting the support rod and the rotating piece. A first connecting part of the connecting piece is fixedly connected with the support rod. A first limiting structure is formed on one of the second connecting part of the connecting piece and the rotating piece, and a second limiting structure matched with the first limiting structure is formed on the other one, so as to prevent the connecting piece and the rotating piece from relatively rotating. When the support rod props the ground, the sensing body on the rotating piece drives the parking sensor to trigger, so that a parking signal is automatically sent to a controller, and then the controller can control the electric vehicle to stop power output according to the parking signal, so as to realize automatic power output cut-off when parking.

The utility model relates to a pump body of a high-pressure pump, the high-pressure pump, a fuel supply system and an engine system. The high-pressure pump is used for supplying supercharged fuel to an engine, and a pump body of the high-pressure pump comprises a first pump body part made of a first material; the first pump body part is made of a first material, the second pump body part is made of a second material different from the first material, the first material has higher corrosion resistance than the second material, and the first pump body part and the second pump body part are fixed together. Therefore, the weight and the cost of the pump body can be reduced.

The utility model discloses a water outlet device capable of stopping water quickly. The water outlet device comprises a body, a water outlet net, a floating plate, a water stopping pendulum shaft, an elastic piece and the like. A water inlet channel and a water outlet cavity are arranged in the body, and a water outlet nozzle with a water passing cavity is arranged on the water outlet net. A water stop pendulum shaft is installed on the floating plate and movably connected with the floating plate through a universal structure, and the lower end of the water stop pendulum shaft can be inserted into the water outlet nozzle to achieve sealing. The floating plate is jacked up by the elastic piece, so that the water stop pendulum shaft blocks the water outlet nozzle; when water flows, water flow overcomes the elastic piece to drive the floating plate to move, and the water outlet nozzle is opened. By optimizing the design of the hinge of the water stop pendulum shaft and the floating plate and the structure of the water passing cavity, the problems of low-pressure opening and rapid water stop are solved, and the water stop valve has the advantages of being simple in structure, low in cost, high in mass production stability and compact in appearance and is suitable for use scenes with various inclination angles.