31results about How to "Stable positional relationship" patented technology

The invention provides an air-drop data acquisition test device which comprises a projectile body, a projectile body empennage arranged at the tail of the projectile body and a power supply assembly arranged in the projectile body, a product to be tested and a data recorder are arranged at the bottom of the projectile body, the data recorder is connected with the product to be tested through an adapter, and the adapter is connected with the power supply assembly. The adapter is connected with the bottom of the projectile body so that the relative position of the to-be-tested product and the data recorder can be kept stable in the air-drop test process, and the adapter is connected with the bottom of the projectile body. The data recorder is simple in structure, convenient to operate, low in cost, easy to disassemble and assemble, high in repeated utilization rate and high in interchangeability, various data in the air-drop process can be directly collected and stored, it is guaranteed that the data recorder keeps stable and reliable in the air-drop data collection process, the failure of the data recorder in the complex atmosphere (pneumatic) environment of an air-drop test is avoided, and the data recorder is safe and reliable. And stable communication transmission between the to-be-tested product and the data recorder in the air-drop test process is ensured.

The utility model discloses a cable, which belongs to the field of cables and comprises a core wire, a middle coating layer, a first shielding layer, a second shielding layer and a ground wire, the middle coating layer is coated outside the core wire, the first shielding layer is coated outside the middle coating layer, the second shielding layer is coated outside the first shielding layer, and the ground wire is positioned between the middle coating layer and the first shielding layer. According to the cable provided by the utility model, through the combined action of multiple layers of structures, the middle coating layer, the first shielding layer and the second shielding layer can be dispersed to each layer when bearing external bending stress, so that the stress concentration of the core wire is reduced, the probability of deformation of the core wire due to repeated bending is reduced, the characteristic impedance stability is maintained, the signal transmission is ensured, and the data transmission abnormity is reduced.

The invention relates to a sheet conveying device and an image forming apparatus including the same. A sheet conveying apparatus includes a cassette storage unit, a sheet storage cassette, and a sheet conveying unit. The sheet storage cassette includes a cassette base portion that stores a sheet-like recording medium, and is pluggable with respect to a cassette storage portion. The sheet conveyance unit is provided in the cassette storage unit and conveys the recording medium stored in the sheet storage cassette. A pair of fixed side rails made of metal is installed on the box containing part. The cartridge base part is made of resin, and a pair of inner rails are integrally formed on the side surfaces of the cartridge base part, and the pair of inner rails and the pair of fixed side rails are connected in a slidable manner.

The utility model provides a switch device which is suitable for being installed on a wall for use and comprises a panel shell and a first sensor, and the first sensor is arranged on the inner side of the panel shell and used for detecting temperature and / or humidity; wherein the panel shell is provided with a first bottom wall, the distance between the first sensor and the first bottom wall is smaller than 5 mm, and an air hole is formed in the position, corresponding to the first sensor, of the first bottom wall in a penetrating mode; when the switch device is installed on the wall, the first bottom wall is located at the bottom of the panel shell, and the air holes are opened downwards. The switching device provided by the utility model can improve the detection accuracy of the first sensor.

This invention belongs to the field of nuclear power plant equipment maintenance technology, specifically relating to an underwater electrical discharge machining (EDM) repair device based on rigid-flexible coupling positioning under irradiation conditions. It includes an underwater transport device, an EDM device, a camera monitoring device, and a control system. The underwater transport device provides transport and positioning support for the EDM device, which performs underwater cutting of instrument bushings. The control system is located above water and performs underwater cutting of instrument bushings via remote operation. The repair process is monitored and recorded in real time by the camera monitoring device. This invention is simple to operate, time-efficient, and does not cause secondary damage to the lower reactor internals, nor does it affect the reuse of the lower reactor internals.

The invention relates to the technical field of wire harness processing, in particular to wire harness butt joint processing equipment which comprises a wire harness assembly, the wire harness assembly is composed of two symmetrically-distributed wire harness single bodies, the opposite ends of the two wire harness single bodies are peeled, and the wire harness single bodies are fixed through a wire harness fixing assembly. The two wire harness fixing assemblies are indirectly driven to move relatively through the position adjusting assembly, the upper fixing sleeves in the two wire harness fixing assemblies move relatively relative to the wire harness single body, and the wire harness single body is automatically fixed through mutual cooperation of the lower fixing sleeves, the upper fixing sleeves and the wire harness single body; on the contrary, when welding is finished, the two wire harness fixing assemblies move back to back, and upper fixing sleeves in the wire harness fixing assemblies move back to back relative to the wire harness single bodies, so that workers do not need to manually fix or unfix the wire harness single bodies in the whole wire harness butt joint machining process, and the machining efficiency of the equipment is improved.

The utility model discloses a medical operating room anti-radiation building structure which comprises a floor, a ceiling and a side wall which form an operating room building structure, the side wall comprises a civil engineering wall and an internal composite isolation layer, the internal composite isolation layer comprises an electrolytic steel plate layer, a calcium carbonate plate layer and a bearing frame, and the electrolytic steel plate layer is attached to the calcium carbonate plate layer. The bearing frame is used for bearing and supporting a composite structure composed of the electrolytic steel plate layer and the calcium carbonate plate layer, and the electrolytic steel plate layer, the calcium carbonate plate layer, the bearing frame and the civil engineering wall are arranged on the side wall from inside to outside. The peripheral boundary of the whole operating room space is contained in an anti-radiation system, and by arranging the combined form of the electrolytic steel plate layer, the calcium carbonate plate layer and the supporting frame, it is guaranteed that the operating room has good radiation shielding performance, and the integrity and durability of a composite structure can be achieved; and the relatively stable position relation of each layer in the use process is ensured.

The invention provides a coaxial fixed connecting device. The coaxial fixed connecting device comprises a first connecting part, a second connecting part and at least two first reinforcing ribs, the first connecting part is provided with a first through hole, the second connecting part is arranged opposite to the first connecting part and is provided with a second through hole, and the first through hole and the second through hole are coaxially arranged; the first reinforcing ribs are clamped between the first connecting part and the second connecting part, surround the first through hole and the second through hole, and are symmetrically arranged at intervals along the peripheral sides of the first connecting part and the second connecting part. According to the coaxial fixed connecting device, the stability of coaxial connection of the driving assembly and the grinding assembly is improved, the overall structure is simple and ingenious, the machining cost is low, and the application range is wide. The invention further provides a sand mill adopting the coaxial fixed connecting device.

The utility model relates to the technical field of stoma base plate cutting, and discloses a stoma base plate trimming device which comprises a central shaft rod, a main body sliding rod, a positioning cylinder, an action structure and a cutting mechanism, and the central shaft rod is used for being axially sleeved and matched with a middle round hole of a stoma base plate and axially attached and positioned; the main body sliding rod is located at the first end of the center shaft rod and arranged in the radial direction of the center shaft rod. The action structure is slidably and adjustably arranged on the main body sliding rod to form a first sliding mechanism, the cutting mechanism is arranged on the action structure, and the cutting mechanism is used for being arranged towards the stoma base plate so that cutting can be conveniently conducted on the stoma base plate; the positioning cylinder is arranged on the action structure, the positioning cylinder is parallel to the main body sliding rod, and the positioning cylinder is arranged towards the central shaft rod and is in sliding fit with the main body positioning hole in the central shaft rod to form a second sliding mechanism. The cutting size of the opening can be accurately controlled through the action structure, positioning is accurate, and the structure is simple.

The utility model discloses a kind of end disc assembly, stator end portion wiring device, motor stator and motor, it is related to motor technical field, wherein, end disc assembly, including opposite fixed fixed disc and several terminal positioning components;The fixed disc includes: several wire slots, for accommodating busbar assembly;Connecting piece, for with the motor stator fixed connection;The terminal positioning component is used to fix wire connected with the busbar assembly;The end disc assembly, stator end portion wiring device, motor stator and motor of the present application, setting terminal positioning component, the terminal of winding is fixed, and wire slot is set, fixedly contains busbar, the welding position of the terminal of winding is fixed, to facilitate automated welding in turn, improve production efficiency, and avoid the problem that terminal is messy caused by artificial welding.

The invention relates to the technical field of fasteners, and provides a high-strength anti-loosening fastener which comprises a first lock nut, the first lock nut is provided with a through hole, the through hole is provided with a first thread part and a first step part which are adjacent, a first anti-loosening ring is arranged on the first step part and provided with an anti-loosening cavity, and the diameter of the anti-loosening cavity is smaller than the thread inner diameter of the first thread part; the second lock nut is provided with a second step part, an extending part and a second thread part, the second step part abuts against the first anti-loosening ring, the extending part is arranged in the anti-loosening cavity and abuts against the first step part, the extending part is provided with a third thread part, threads of the third thread part are embedded into the first anti-loosening ring, and the thread inner diameter of the second thread part is equal to that of the first thread part. By means of the technical scheme, the problem that in the prior art, a nut is poor in anti-loosening effect is solved.

The utility model relates to the technical field of batteries, and provides a battery and welding equipment. The battery includes: a battery case; the pole is arranged on the battery shell; the battery cell is arranged in the battery shell, the battery cell comprises a battery cell main body and a pole lug, the pole lug extends out of the battery cell main body, and the pole lug is directly welded and connected with the pole column; wherein a plurality of pits are formed in one end, deviating from the tab, of the pole, the ratio of the depth of the pits to the thickness of the tab is 0.015-3, the stability of the pole in the welding process can be effectively controlled by adjusting the relation between the depth of the pits and the thickness of the tab, so that the welding of the tab and the pole is more stable, and the high-quality welding effect can be ensured; and the safe use performance of the battery is further improved.

The invention discloses a glass sample culture dish which comprises a dish body and a cover body capable of adaptively covering an opening of the dish body, a clamping assembly for clamping and fixing a glass sample in the dish body is mounted in the dish body, and the glass sample clamped and fixed in the dish body is suspended and horizontally arranged in the culture dish body; the clamping assembly comprises three clamping units, each clamping unit comprises a guide rail and a clamp, a clamping groove is formed in each clamp, the clamps are installed on the guide rails through the clamping grooves matched with the guide rails, the three guide rails are arranged in the dish body in an annular array mode, groove bodies arranged in the length directions of the guide rails are formed in the guide rails, and screw rods are installed in the groove bodies. The bottom of the clamping groove is provided with an external thread matched with the screw, and the first end of the screw penetrates through the dish body and protrudes out of the dish body. The device can stably clamp a glass sample and keep the glass sample in a horizontal suspension state, so that the environment where each part of the sample is located is relatively uniform, and the accuracy of an experimental result is improved.

The utility model provides a connector and a connector device, which can restrain loosening and enable the relative position relation of the connector relative to the opposite connector to be stable. The connector is a connector (receptacle connector 3) fitted by a push-in manner to a mating connector (plug connector 2), the mating connector includes a first housing (20) and an operating lever (21) rotatably supported by the first housing (20), the connector is engaged with the mating connector by rotation of the operating lever, the connector includes a second housing (30), and the second housing (30) is configured to engage with the mating connector by rotation of the operating lever. The connector includes a first housing (20) and a second housing (30), the second housing includes a fitting portion (31) into which the first housing (20) is fitted to the outside, the second housing includes a flange portion (32) and a fitting portion (31) vertically disposed on the flange portion, an elastic member (39) is provided at a boundary portion between the flange portion (32) and the fitting portion (31), and the elastic member (39) suppresses loosening between the first housing (20) and the fitting portion (31) and / or the flange portion (32) when the connector is fitted to a mating connector.

The utility model relates to an animal feeder, which comprises a main body used for storing food or water; the at least one feeder assembly is installed on the main body, and the feeder assembly can be used for assisting animals to eat food or drink water; the lamp is arranged inside or outside the main body, and the lamp can emit light of at least one color; when the lamp emits light with two or more colors, the functions of manually or automatically changing light colors, alternately flickering light, simulating dynamic patterns (such as simulating flames and simulating fans) and the like can be achieved through the control device; for example, the color, conversion frequency and the like of light are controlled through a mobile phone program or a remote controller. Or parameters such as color and conversion frequency of the factory preset light of the circuit board are used, and after a user assembles the circuit board, the circuit board is automatically operated according to the parameters such as color and conversion frequency of the factory preset light; wherein the diameter or the width of the main body is 5-10cm.

The application discloses a kind of bubble generators, including bubble generator shell and bubble generator inner core, bubble generator shell has the spherical assembly ring for being set over at lower end and the water inlet of bubble generator inner core is set at top;Bubble generator inner core has core body, first panel and second panel, the spherical outer wall of core body is matched with spherical assembly ring and ring inner wall;The outer ring wall of first panel and ring inner wall are connected by multiple connecting sheets, the interval between adjacent two connecting sheets is air inlet passage;The outer ring wall of second panel is clamped in ring inner wall, and the interval between the second panel and first panel has spacing, interval and air inlet passage are communicated;The air inlet passage of the bubble generator of the application is set on bubble generator inner core, water and air are fully mixed in bubble generator inner core to produce bubble water, can be replaced by setting the bubble generator inner core of different size air inlet passage to adjust air intake, realize the bubble effect of different water spray, can satisfy the demand of different people to water potential, water spray variety style etc..

The utility model relates to the technical field of inclined hole location degree detection tools, and discloses an inclined hole location degree detection tool which comprises a bearing bottom plate, the front end and the rear end of the bearing bottom plate are fixedly connected with handles, the top of the bearing bottom plate is fixedly connected with a reference block, and the top of the bearing bottom plate is fixedly connected with an inclined guide plate. According to the utility model, the fixed sleeve is arranged to provide a foundation for installation and positioning of other parts, in the detection process, the relative position relation of related parts can be kept stable, and the limiting clamping frames are distributed in a bilateral symmetry manner by taking the fixed sleeve as the center, so that detection errors or part damage caused by excessive movement of the limiting clamping frames can be prevented; the second reset spring is located in the fixing sleeve, when a component related to the second reset spring moves in the detection process, the second reset spring can enable the component to restore to the initial position after detection is finished, the effect is similar to the effect of the first reset spring, and the convenience of product detection by the device is improved.

The present invention discloses an anti-seismic anchor bolt, comprising an inner screw and a cutting tube sleeved on the outer periphery of the inner screw, an expansion cone piece is provided at one end of the inner screw, a thread is provided on the outer periphery of a part of the inner screw near the other end thereof to form an outer thread section, and a portion of the inner screw between the expansion cone piece and the outer thread section is a non-thread section; a plurality of longitudinal cracks are provided at the inner end of the cutting tube, and the portion between two adjacent cracks forms an expansion piece; screw teeth are provided on the inner side surface of the outer end of the cutting tube, and when the cutting tube is sleeved on the inner screw, the screw teeth of the cutting tube are meshed and connected with the outer thread section of the inner screw. The present invention has the functions of simple structure, low manufacturing cost, anti-loosening, anti-fool, easy disassembly and anti-seismic.

A developing cartridge includes: a housing for accommodating a developer, the housing having a first side and a second side disposed separately in a first direction, the housing having a third side and a fourth side disposed separately in a second direction crossing the first direction; a developing roller; a coupling gear; a chip including an electrical contact surface; the forcing and pushing unit can receive force used for enabling the developing roller to approach the photosensitive drum and comprises an abutting part, and the abutting part can move relative to the shell; the abutting part is farther away from the developing roller than the electric contact surface in the second direction; the forced pushing unit of the developing box is farther away from the developing roller than the stirring frame and the electric contact surface in the front-back direction, so that the mutual interference condition between the forced pushing unit and a gear train of the developing box caused by over-concentration of the structure of the developing box is avoided; the developing box can provide a forcing force for enabling the developing roller to be in contact with the photosensitive drum, so that the adaptability of the developing box is improved.

A welding red copper elbow external member with an installation support and a closed tail end comprises a red copper elbow body which is composed of a closed type straight pipe section, an elbow section and an open type straight pipe section. The installation support is connected to the closed straight pipe section of the red copper elbow pipe body in a sleeving mode, a fixing hole is formed in the installation support, and a fastener is connected into the fixing hole; the pipe joint is fixedly welded with the open type straight pipe section, and a welding area is formed on the pipe joint; the flange clamp is connected between the pipe connector and the open type straight pipe section in a sleeved mode, a sealing piece is arranged in the flange clamp, and the sealing piece wraps the welding area. According to the utility model, the hydrodynamic structure design is excellent, the resistance to the fluid can be reduced as much as possible, and the flowing effect is accelerated. And through the arrangement of the mounting bracket, external connection and supporting effects can be provided, so that the red copper elbow body and the external supporting body are kept in a relatively stable and reliable position relationship, and the probability of falling off and displacement is greatly reduced.

The invention relates to the technical field of magnetic field strength detection, and in particular to a system and method for detecting residual magnetic field strength of a concrete component; the system and method comprise: a track device, a traction device, an end face detection device for detecting the magnetic field strength of two end faces of a concrete component; an annular detection device for detecting the magnetic field strength of a part of the side surface of the concrete component located in a hollow measuring cylinder; and a main control system for receiving and processing magnetic field strength data of the annular detection device and the end face detection device. The main control system controls the traction device to pull the concrete component into the hollow measuring cylinder in sections, thereby realizing accurate section-by-section movement and pipeline detection of the residual magnetic field strength of the concrete component, greatly improving the efficiency and stability of magnetic detection of the concrete component, filling the industry gap in the field of engineering detection, having low economic cost, being able to detect in a prefabrication site, reducing the transportation time of concrete components, shortening the project construction period, and having high application value.

The invention discloses a gravity balance vehicle which comprises a first seat body, a second seat body and a swing mechanism connecting the first seat body and the second seat body, the swing mechanism comprises a first gravity distribution rod and a second gravity distribution rod, the bottom of the first gravity distribution rod is connected with the first seat body, and a first rotating piece is arranged at the top of the first gravity distribution rod; the bottom of the first gravity distribution rod is connected with the first seat body, the bottom of the second gravity distribution rod is connected with the second seat body, the top of the second gravity distribution rod is provided with a second rotating part, the second rotating part is higher than the second seat body, and the first seat body can swing relative to the second seat body through rotating connection of the first rotating part and the second rotating part; the first moving part is arranged at the bottom of the first seat body; and the second moving part is arranged at the bottom of the second seat body. When the first seat body swings, the movement track of gravity center displacement of the first seat body is located below the swing point, and the gravity acceleration direction of the first seat body in the swing process is downward, so that the first seat body naturally tends to a balance point below the swing center in the swing process.

The utility model discloses an image sensor packaging structure with a stable transparent cover plate, which relates to the technical field of semiconductor packaging and comprises an image sensor, a substrate, a supporting side wall, a side wall extension plate and the transparent cover plate. The image sensor is connected to the substrate through a plurality of leads; the image sensor comprises a photosensitive area; the supporting side wall is arranged on the upper surface of the image sensor; the supporting side wall is annular; the photosensitive area is located in the annular supporting side wall; the lead is positioned outside the annular support side wall; a groove is formed in the lower side of the side wall extension plate; the upper ends of the supporting side walls can be inserted into the grooves to be fixed. The transparent cover plate is fixed on the upper surface of the side wall extension plate. According to the image sensor packaging structure with the stable transparent cover plate provided by the utility model, the problem that the sensing chip cannot work normally due to the fact that the transparent cover plate is easy to fall off due to external environment vibration in the prior art is solved; according to the utility model, the position relation of the transparent cover plate relative to the image sensor is more stable.

The utility model discloses an injection pen transmission and dosage adjusting device which comprises an adjusting rod, an adjusting disc cover is detachably arranged at the end, close to an injection end, of the adjusting rod, a plurality of drive plate positioning devices are arranged on the side, close to the injection end, of the adjusting disc cover, and the injection pen transmission and dosage adjusting device further comprises a feeding device coaxial with the adjusting rod. The feeding device is located on the side, close to the injection end, of the adjusting rod, and the end, close to the adjusting rod, of the feeding device is provided with a plurality of drive positioning devices matched with the drive plate positioning devices. The utility model aims to provide a transmission and dose adjustment device which is relatively simple in structure and can enable an injection pen to have the capability of accurately injecting medicaments.

This invention proposes a seed metering chamber that directly drives the seed disc rotation using an axial flux motor, belonging to the field of agricultural machinery technology. It solves the shortcomings of existing seed metering mechanisms, such as reliance on mechanical shaft transmission, long transmission chains, poor transmission stability during operation, and high noise levels. In this invention, housings A and B are interconnected to form a seed metering cavity, with the seed disc disposed inside the cavity. A top seed wheel is located inside housing A and on one side of the seed disc, adjacent to the seed disc to form a seed metering structure. An axial flux motor is disposed on one side of housing B, with its output end facing the seed metering cavity and connected to the seed disc. The output end of the axial flux motor has a protruding structure, and the seed disc has a corresponding groove structure. The protruding structure is embedded in the groove structure to drive the seed disc to rotate. This invention is applicable to precision seeding operations in agricultural seeding equipment for quantitative separation and stable seed discharge.

The utility model discloses high strength wheel hub nut relates to the field of nut, and the ordinary wheel hub nut of prior art is limited to the fixing force of wheel hub, and the problem that the serious hidden danger of driving safety is brought to the situation that wheel hub loosens easily is solved. The wheel hub nut main part includes the conical sleeve portion, wheel hub nut main part one side cooperation and be connected with the reinforced locking sleeve pipe, the reinforced locking sleeve pipe includes the outer ring portion, the outer ring portion outer surface annular array has set up the arc slot, the outer ring portion outer surface along the inner end of arc slot central position sets up the sliding hole groove, the reinforced locking sleeve pipe is connected with a plurality of reinforced extruding spare on cooperation, and the reinforced extruding spare includes the arc extruding board in the arc slot inside, the arc extruding board inner end center fixed has the intermediate sliding column, the other end of intermediate sliding column along the outer ring portion inside fixed has the drive block, and the inner surface of drive block is the arc surface, and the arc surface and conical sleeve portion outer surface match.

The utility model relates to a mesh spot welding assembly platform, which comprises a frame body, the longitudinal positioning assembly comprises at least two first positioning pieces and at least two limiting pieces, the limiting pieces are detachably connected with the two sides of the frame body, and the first positioning pieces are arranged on the limiting pieces in a penetrating mode; a plurality of positioning grooves are formed in the first positioning piece at intervals, and the groove widths of the positioning grooves are gradually decreased in the direction from groove openings to groove bottoms; the transverse positioning assembly comprises a mounting seat, a sliding part, a first locking part and a second positioning part, the mounting seat is slidably connected to the frame body, the upper end of the sliding part is connected with the second positioning part, the lower end of the sliding part vertically penetrates through the mounting seat and then is in threaded connection with the first locking part, and the first locking part and the second positioning part are both in limiting fit with the mounting seat; and a positioning hole is formed in the second positioning piece. According to the utility model, transverse and longitudinal steel bars can be kept in a relatively stable position relationship, meshes of different specifications can be processed in a matched manner, the switching is convenient, and the universality is strong.

The utility model relates to a movable arm front fork clamp, a movable arm front fork comprises a first side plate, a connecting plate and a second side plate which are sequentially stacked in the first direction, the movable arm front fork clamp comprises a base, a first limiting mechanism, a second limiting mechanism and a third limiting mechanism, and the first limiting mechanism, the second limiting mechanism and the third limiting mechanism are arranged on the base. The first limiting mechanism is used for clamping the first side plate and the second side plate in the first direction so that the first side plate and the second side plate can abut against the connecting plate. The second limiting mechanism is used for abutting against the two opposite sides of the movable arm front fork in the second direction. The third limiting mechanism is used for clamping the two opposite sides of the connecting plate in the third direction, and every two of the first direction, the second direction and the third direction intersect. According to the embodiment, the movable arm front fork is limited in three directions through the three limiting mechanisms, the matching precision of all assemblies of the movable arm front fork is improved, and the welding quality is improved.