21results about How to "Guarantee working reliability" patented technology

The utility model discloses an electromagnet which comprises a support body and a cover plate fixedly arranged on one side of the support body. An execution assembly is arranged in the support body, the bottom and the top of the support body are both provided with anti-seismic colloid, the bottom is further provided with a PIN terminal, the PIN terminal is electrically connected with the execution assembly, and the connecting position of the PIN terminal and the execution assembly is wrapped by an insulation connecting bridge. The execution assembly comprises a winding supporting piece, a limiting shaft sleeve, an iron core, a permanent magnet and a coil. The two ends of the limiting shaft sleeve are provided with limiting holes, and sliding limiting of the iron core is achieved through a guide block and a positioning base. The anti-seismic performance, the integration level and the installation convenience of the electromagnet can be improved, meanwhile, the leakproofness and the insulativity of the welding part are ensured, and the electromagnet is suitable for an automobile ABS system.

The invention relates to the technical field of underground gas storage, and discloses a composite sealing structure of an underground gas storage cavern, which comprises a lining covering the wall of the underground gas storage cavern, a drainage system is arranged on one side, close to the wall of the underground gas storage cavern, of the lining, and a buffer layer and an airtight plate sequentially cover the other side of the lining; the drainage system comprises drainage pipes, water inlet holes and flow guide pipes, the drainage pipes are arranged in the lining in the horizontal direction and arranged in the circumferential direction of the underground gas storage cavern at intervals, the water inlet holes are formed in the drainage pipes and used for communicating the interiors of the drainage pipes with the wall of the underground gas storage cavern, and the adjacent drainage pipes are communicated through the flow guide pipes. By arranging the drainage system, water in the rock mass of the underground gas storage cavern enters from the water inlet groove, penetrates through the water inlet hole and enters the drainage pipe, seepage water and gravel mixtures are drained away through the drainage pipe and drained away through the drainage pipe below and the bottom drainage pipe, and the influence of accumulated water on the underground gas storage cavern can be effectively avoided.

A battery thermal runaway multi-stage early warning device and its control method belong to the technical field of lithium ion power battery safety monitoring. In the device, the capacitor displacement sensor adopts a parallel plate capacitor structure to monitor the deformation of the battery cell; the three-layer step temperature sensor is composed of three layers of temperature changing materials arranged in concentric circles, independently outputs step signals of three temperature nodes of 85 DEG C, 135 DEG C and 200 DEG C, and realizes the internal temperature monitoring of the battery; the pressure sensor of the pressure relief valve film monitors the pressure change at the battery pressure relief valve. After the signals of various sensors are collected and processed, they are input into the logic judgment unit, combined with the multi-signal composite judgment to output the three-stage early warning signal, and then driven by the isolation driving unit to drive the corresponding LED indication. The valve adopts triple sensing fusion and pure hardware logic hierarchical judgment, realizes accurate early warning of early, middle and late thermal runaway, has fast response speed, high reliability, compact structure and is suitable for various batteries, and can effectively improve the safety of battery use.

The invention discloses a seamless steel tube perforating machine and a suspension type guide sleeve device thereof, and belongs to the technical field of seamless steel tube perforating machines. The suspension type guide sleeve device comprises two suspension frames which are fixed to the inner side of the rack and are symmetrical to each other, a bracket connected between the two suspension frames through a fastener, a guide sleeve assembly arranged above the middle of the bracket, and a pressing assembly arranged below the middle of the bracket. By arranging the pressing assembly, up-down movement of the guide sleeve assembly in the operation process can be effectively limited, the stability of the guide sleeve assembly in the working process is guaranteed, and pipe blank guide deviation caused by up-down displacement of the guide sleeve is avoided; precise fine adjustment of the guide sleeve assembly in the radial direction is achieved, the size change caused by abrasion of the guide sleeve due to long-term use can be effectively compensated, it is guaranteed that the center of the guide sleeve coincides with the hole shape center of a puncher all the time, and therefore production accidents such as pipe blank rolling clamping and uneven wall thickness of a hollow billet are avoided.

The utility model provides a dust collection floor brush which comprises a floor brush seat with a dust collection cavity, a rotary brush body arranged in the dust collection cavity and provided with a rotary brush body cavity, an end cover plate arranged at one end of the rotary brush body, a bearing cover plate matched with the end cover plate and a driving assembly used for driving the rotary brush body to rotate. The bearing cover plate comprises a bearing cover concave part, a bearing cover center hole located in the center of the bearing cover concave part, a bearing cover flange arranged around one end of the bearing cover center hole, a bearing chamber communicated with the bearing cover center hole and located in the bearing cover flange, and a bearing cover sleeve arranged around the other end of the bearing cover center hole. The bearing cover outer wall is located on the outer side of the bearing cover concave part, and the concave part edge is located on the outer side of the bearing cover concave part. The dust collection floor brush has the advantages that due to the fact that different radial gaps exist between the rotating brush body and the bearing cover plate, hair moves in the direction away from the end cover, hair winding is avoided, reliable rotation of the rotating brush body is guaranteed, and the working reliability of the dust collection floor brush is guaranteed.

This invention belongs to the field of pet product technology and discloses a water pump system and a pet water fountain. The water pump system includes a motor module, an impeller module, and a pump core module. The motor module includes a stator assembly, a control board, and a motor mounting bracket. The stator assembly is inserted into the water fountain's container, and the motor mounting bracket is inserted into the bottom shell of the water fountain. The impeller module includes an impeller housing, multiple rotor magnets, and a support shaft. The support shaft passes through the impeller housing and is inserted into the container. One end of the pump core module has a water inlet chamber, which is open and sealed to a protrusion on the container. The other end has a water outlet pipe, which is inserted into the water supply pipe of the water fountain. The water inlet chamber has a filter hole that communicates with the water chamber on the container. This water pump system has a simple structure, and installation and disassembly do not require auxiliary tools, facilitating deep cleaning of the pump system components and thus ensuring the cleanliness of the pet water fountain.

The invention relates to the field of power system supply and demand interaction, and discloses a caliper self-diagnosis long-life sensing coating material and a coating method thereof.The material comprises an energy conversion layer, and the energy conversion layer is prepared from, by mass, polyvinylidene fluoride, silicon carbide and barium titanate; the protective layer is prepared from the following raw materials in parts by mass: polyvinylidene fluoride and self-lubricating microcapsules, and the coating method comprises the following steps: S1, pretreatment and slurry preparation; s2, coating and sensor network construction; and S3, heating curing is conducted, and coating operation of the coating is completed. Through the energy conversion layer formed by polyvinylidene fluoride, barium titanate and the like, mechanical vibration energy in the braking process can be converted into electric energy, electric energy supply is provided for a built-in sensing network, energy self-sufficiency of the system is achieved, an external power source and wiring are not needed, and the system is simple in structure and convenient to use. Meanwhile, the integrated Bragg grating optical fiber and the conductive silver paste network can synchronously monitor two state parameters of strain and abrasion.

This utility model relates to laboratory equipment and discloses a hoverable sliding door, including a door body, a support mechanism, and a constant force spring. A guide wheel is rotatably mounted on the support mechanism, and the door body is slidably connected to the support mechanism. One end of the elastic band of the constant force spring is fixed to the spring's shaft, and the other end is connected to a steel wire rope, which passes around the guide wheel and is connected to the door body. The elastic force of the spring's elastic band is equal to the weight of the door body, thus enabling the door body to hover. Applying an external force to the door body causes it to slide, changing the relative position between the door body and the support mechanism. When the position of the door body needs to be changed, the operator applies an external force to the door body to change its position; after removing the external force, the door body remains in the new position. This utility model also provides an experimental device including the aforementioned hoverable sliding door.

The utility model relates to a novel cover plate for a power distribution bus starting end box and a box body structure of the starting end box, the upper part of a main plate of the cover plate is provided with a plurality of upper mounting holes corresponding to tightening bolts, and the upper mounting holes are provided with large holes through which bolt heads of the tightening bolts pass and small holes which are positioned at the upper parts of the large holes and are used for limiting screw rods of the tightening bolts; a plurality of lower groove holes corresponding to the positioning bolts are formed in the bottom of the main plate; the box body comprises a top plate, a bottom plate, a surrounding plate and a cover plate, an upper flange of the top plate is fixed to the periphery of the surrounding plate, and tightening bolts are installed on a plurality of upper threaded holes in the upper flange, located on one side of the opening, of the top plate; the lower turned edge of the bottom plate is fixed to the periphery of the surrounding plate, positioning bolts are installed on a plurality of lower threaded holes in the lower turned edge, located on one side of the opening, of the bottom plate, the upper installation holes in the cover plate correspond to the tightening bolts, and the lower groove holes correspond to the positioning bolts. The device is simple in structure, is convenient to dismount, mount and operate, and can solve the risk that the bolt falls into a lower cabinet.

The utility model discloses a power line buckle device which is used for limiting a plug to a socket and comprises two fixing assemblies, two limiting pieces and a flexible connecting piece. The two fixing assemblies are used for being fixedly installed on a socket. Each fixing assembly comprises a fixed part and a movable part, and the fixed part is suitable for being fixed to the socket; the movable piece is connected to the fixed piece and provided with a limiting hole. The two limiting pieces and the two fixing assemblies are arranged in a one-to-one correspondence mode. Each limiting piece comprises a first end and a second end which are opposite, and the first end is detachably inserted into the corresponding limiting hole. The flexible connecting piece is used for being wound on the periphery of the plug; the flexible connecting piece is connected between the second ends of the two limiting pieces. Therefore, under the fixing effect of the power line buckle device, the plug can be reliably limited on the socket, the situation that the plug is accidentally loosened from the socket or even falls off is avoided, and the working reliability of electrical equipment is guaranteed.

The present disclosure relates to a support for supporting an electronic device, comprising a support plate and an air cooling assembly. The support plate is used for supporting the electronic device and comprises a first surface and a second surface facing away from each other, the first surface faces the electronic device, and the air cooling assembly is arranged in the support plate. The air cooling assembly comprises an air flow driving part, an air inlet channel and an air outlet channel. The air outlet of the air flow driving part is arranged opposite to the first surface and has a first preset space with the first surface. The air inlet of the air flow driving part is arranged opposite to the second surface and has a second preset space with the second surface. The air outlet channel is communicated with the air outlet through the first preset space. The air inlet channel is communicated with the air inlet through the second preset space. The first surface is provided with an air outlet hole communicated with the air outlet channel. In this way, the air flow driving part can drive the air flow to blow out of the air outlet hole to cool the electronic device. By placing the air flow driving part horizontally in the support plate, the support plate is lightened and thinned.

This invention relates to the field of vehicle-mounted drones and discloses an automatic battery replacement system for vehicle-mounted drones. The system includes a vehicle-mounted drone and a vehicle-mounted hangar. The vehicle-mounted drone includes a drone body and a drone support frame. The vehicle-mounted hangar includes a hangar compartment and a lifting platform, a positioning mechanism, a robotic arm, and a battery charging mechanism located within the hangar compartment. When the vehicle-mounted drone needs a battery replacement, the hangar compartment opens, and the vehicle-mounted drone lands on the lifting platform. The positioning mechanism uses a first push rod and a second push rod to push the drone support frame, adjusting the relative position of the vehicle-mounted drone and the lifting platform to achieve drone positioning. A fixing element is then used to secure the relative position of the vehicle-mounted drone and the lifting platform. After the vehicle-mounted drone is positioned, the robotic arm removes the battery from the drone body and sends it to the battery charging mechanism for charging. A spare battery from the battery charging mechanism is then removed and installed onto the drone body, improving the vehicle-mounted drone's range.

The invention discloses a control protection method, a control device and a program product, the control protection method is applied to an energy storage system, and the energy storage system comprises a plurality of energy storage sub-modules connected in series; the energy storage sub-module comprises an energy storage converter, a protection device and a battery cell, and the protection device is arranged between the energy storage converter and the battery cell; the method comprises the following steps: determining that the energy storage system is switched from a charge-discharge state to a hot standby state; wherein under the condition that the energy storage system is in a hot standby state, the energy storage converter can generate resonance current during working; the protection device is controlled to be connected between the energy storage converter and the single battery, and the protection device is used for absorbing resonance current generated by the energy storage converter during working; and controlling the energy storage system to be switched to the hot standby state. Therefore, when the energy storage system is in the hot standby state, the protection device can be connected to absorb the resonance current generated by the energy storage converter, so that the battery is protected from being damaged by microcirculation, and the service life of the battery is prolonged.

The invention relates to the technical field of air bearings, and discloses an air bearing device capable of preventing axial movement, the air bearing device comprises an air supply system, a bearing base body and a rotating roller, a permanent magnet pre-tightening structure and an electromagnetic fine tuning structure are embedded on the inner wall of the bearing base body, and the outer surfaces of the permanent magnet pre-tightening structure and the electromagnetic fine tuning structure are coplanar with the inner wall of the bearing base body; the permanent magnet pre-tightening structure at least comprises two sets of permanent magnets arranged at intervals, the electromagnetic fine tuning structure at least comprises two sets of electromagnetic modules, the electromagnetic modules are located on the outer sides of the corresponding permanent magnets and tightly attached to the corresponding permanent magnets, and the magnetic direction of the electromagnetic modules is opposite to that of the permanent magnets. The thrust disc adopts a gas-magnetic division design, prevents axial movement by utilizing magnetic force, adopts a design of taking permanent magnet as a main part and taking electromagnetism as an auxiliary part, is highly integrated, does not need to occupy additional axial space, is more compact in structure, adapts to small and high-speed main shaft scenes, and is controllable in electromagnetic heating defect compared with a traditional thrust disc structure.

The utility model provides an improved dust collector accessory which comprises an accessory seat with a rolling brush chamber, a rolling brush body arranged in the rolling brush chamber and provided with a rolling brush body cavity, a driving assembly used for driving the rolling brush body to rotate, a non-driving end cover piece arranged at one end of the rolling brush body and a non-driving bearing cover piece matched with the non-driving end cover piece. Wherein the non-driving end cap base has a non-driving end cap flange that prevents hair from entering the bearing cap. The dust collector accessory has the advantages that hair is prevented from entering the bearing through the end cover turnup, meanwhile, the hair can move towards the direction away from the end cover, hair winding is avoided, reliable rotation of the rolling brush body is guaranteed, and the working reliability of the dust collector accessory is guaranteed.

This utility model discloses an end cap assembly, a pilot valve, a four-way valve assembly, a compressor assembly, and an air conditioner. The end cap assembly is used for the pilot valve and includes: an end cap body with a connecting hole extending through the end cap body along its thickness direction; and a filter element located on one side of the end cap body with multiple spaced filter holes. A limiting groove extending circumferentially around the connecting hole is provided on the end face of the end cap body facing the filter element. A portion of the filter element is disposed within the limiting groove, protruding towards the side away from the end cap body. According to the end cap assembly of this utility model, the end cap assembly ensures reliable fixation of the filter element and improves the filtration effect.

The application provides a fluid machine with a bearing and a heat exchange device, and the fluid machine with the bearing comprises a crankshaft, a cylinder sleeve, a bearing, a cross-groove structure and a sliding block, the crankshaft has two eccentric parts; the crankshaft is eccentrically arranged with the cylinder sleeve and the eccentric distance is fixed; the bearing is at least one, the bearing is arranged at the end face of the cylinder sleeve in the axial direction and is located outside the cylinder sleeve; the cross-groove structure is rotatably arranged in the cylinder sleeve, the part of the outer circumferential surface of the cross-groove structure in the axial direction is attached to the inner ring of the bearing, two limiting channels of the cross-groove structure are sequentially arranged along the axial direction of the crankshaft, and the extension direction of the limiting channel is perpendicular to the axial direction of the crankshaft; the sliding block has a through hole, there are two sliding blocks, the two eccentric parts correspondingly extend into the two through holes of the two sliding blocks, and the two sliding blocks are correspondingly arranged in the two limiting channels in a sliding mode and form a variable volume cavity. The application solves the problems of low energy efficiency and large noise of the compressor in the prior art.

The utility model discloses an air conditioner, which comprises a wire controller, the wire controller comprises a screen module, the screen module comprises a screen component and a backlight support frame, the screen component is mounted on the backlight support frame, and the backlight support frame is made of non-metal materials; the WiFi module is provided with an onboard antenna in an integrated manner; a drive-by-wire mainboard; the conductive cloth is attached to the side face, away from the screen module, of the backlight supporting frame, the drive-by-wire mainboard and the WiFi module are both located on the side, away from the backlight supporting frame, of the conductive cloth, the conductive cloth is provided with a first avoiding part for avoiding the onboard antenna, and an electric connection part is arranged on the conductive cloth; the FPC board is connected with the drive-by-wire main board, is attached with conductive cloth, extends towards the side surface of the drive-by-wire main board so as to be electrically connected with the electric connecting part, and then extends to be connected with the screen module; and the mounting shell is used for mounting the backlight support frame and the drive-by-wire mainboard. According to the utility model, normal sending and receiving of signals of the WiFi module can be ensured, light leakage of the screen module is avoided, and the screen module is helped to release interference signals.

The utility model relates to the technical field of blasting needle valves, in particular to a blasting needle valve with a replaceable blasting needle, which comprises a main valve body, a plurality of support members are fixedly mounted on the upper end face of the main valve body, a valve rod is slidably mounted in the main valve body, and a pressure plate is fixedly mounted at the upper end of each support member. A blasting needle is inserted in the center of the pressing disc, the lower end of the blasting needle is inserted in the head of the valve rod, a limiting plate for limiting the head of the blasting needle is installed on the upper end face of the pressing disc, and the limiting plate is horizontally and slidably connected with the pressing disc. Through the design of the limiting plate and the elastic stretching assembly, the blasting needle is easy and convenient to replace, complex tools and steps are not needed, the replacement time is greatly shortened, the production stagnation time is shortened, and the production efficiency is improved. And through the design of the positioning block of the blasting needle and the placing groove and the center hole on the pressure plate, the accuracy and the stability of the installation of the blasting needle are ensured.

This utility model discloses a plate heat exchanger with strong pressure resistance, including a heat exchange assembly, a top plate, and a bottom plate. The heat exchange assembly includes a first heat exchange plate and a second heat exchange plate. Corner holes are provided at the four corners of the top plate, the first heat exchange plate, and the second heat exchange plate. A first boss and a first recess are respectively provided at the two corner holes at the same end of the first heat exchange plate. A second recess and a second boss are respectively provided on the second heat exchange plate. A fixing post is provided between the two corner holes at the same end of the top plate. Several first ridges and first grooves in a parallel, alternating "I" shape are provided between the first boss and the first recess on the first heat exchange plate. The distance between two adjacent first ridges is less than the diameter of the fixing post. A second groove and a second ridge are provided between the second recess and the second boss on the second heat exchange plate. The plates at the fixing posts are connected by line contact, thus effectively improving the connection strength and pressure resistance.

The utility model belongs to the field of motors, and discloses an axial magnetic flux motor with balanced axial force, which comprises a shell; the stator is fixed in the shell; the first rotor and the second rotor are respectively arranged on two opposite side surfaces of the stator; the first connecting plate is connected with the middle part of the first rotor and is provided with an output shaft; the second connecting plate is connected with the middle part of the second rotor and is fixedly connected with the output shaft; a first bearing is arranged between the first connecting plate and the stator, a second bearing is arranged between the second connecting plate and the stator, and air gaps are formed between the first rotor and the stator and between the second rotor and the stator; and a support ring is arranged between the first bearing and the second bearing. The axial magnetic flux motor is compact in structure and easy to assemble, the supporting ring is arranged between the first bearing and the second bearing, axial magnetic attraction force borne by the first bearing and the second bearing is balanced, the bearings are protected against abrasion, and stable and reliable performance of the axial magnetic flux motor can be kept.