2514 results about "Front cover" patented technology

An NC lathe 1 for machining a work W includes a housing 11, a chip bucket 8 that is placed inside of the housing 11 in order to receive chips produced when the work W is machined, an opening formation portion 112 that is provided in the housing 11 and has an opening 1121formed therein through which the chip bucket 8 can be pulled out to the outside of the housing 11, and an opening cover 15 that is detachably attached to the housing 11 so as to close the opening 1121 in an attached state attached to the housing 11, wherein the opening formation portion 112 has a slit 1122 that is formed continuously with the opening 1121 so as to extend in a width direction of the opening 1121, and that allows the opening cover 15 removed from the housing 11 to be inserted into the housing 11.

The present invention discloses an embedded hard cover, comprises rotating shaft, edge strip, guide rail system, clip system, multiple plate bodies; the multiple plate bodies are connected by the rotating shaft; the edge strip is connected to both ends of the rotating shaft and the plate body, the rotating shaft, the plate body, the edge strip form the main body of the lid; the guide rail system is used to support the cover body, and the clip system is used to fix the guide rail system on the car body, the guide rail system includes a guide rail, the guide rail upper plane and the guide rail lower plane; the front plate comprises a front plate side rail, which is provided with a support edge supported on a flat surface of the guide rail, a gap between the front panel side rail and the lower surface of the guide rail.

A dispenser for sheet materials is disclosed. The dispenser includes a housing having an including a cover assembly, a back frame member comprising a first side and a second and opposite side forming an interior surface of the housing, and the first side of the back frame member comprising at least one mating receptor; and a plate comprising a carrier member primarily made from plastic and a decorative facia, wherein the carrier member has a facia side coupled to the decorative facia and a back and opposite side, including a locking element, wherein the plate is configured to be removably coupled to the first side of the back frame member when the locking element of the carrier member is releasably engaged to the mating receptor of the back frame member such that the decorative facia forms an exterior surface of the dispenser.

The application provides a heavy truck axle housing manufacturing method, which comprises the following steps: selecting a ladder-shaped pipe blank, firstly performing axial annular material supplementing pre-expanding to obtain a pre-expanding pipe blank with an upper flat side, a lower side and front and rear convex sides, the wall thickness of the upper flat side is almost not thinned, and the wall thickness gradually decreases from the upper side to the lower side along the annular direction; and performing final expanding after annealing to obtain an axle housing pipe, the upper side of the pre-expanding pipe blank becomes a front flat surface with a bell-shaped additional front cover, the front and rear sides are shaped into a H-shaped side beam, the lower side becomes a semispherical rear oil cover, and the wall thickness of the front flat surface and the side beam is increased. The pre-expanding die is composed of left and right pressing heads, left and right sliding dies, an upper control die and a lower control die, the cavity axial width of the upper flat area of the upper control die is greater than that of the front and rear convex sides. The manufactured heavy truck axle housing is free of welds and oil leakage, the wall thickness of the front flat surface and the side beam of the axle housing is large, the bending and torsion resistance is improved, the diameter expansion rate is large during hydraulic expanding, the wall thickness thinning rate is small, the forming quality is good, and the material utilization rate is high.

The invention provides a texturing hot box and a false twist texturing machine, and belongs to the technical field of textile machinery. The deformation hot box comprises a second heat preservation layer which is at least attached to two first side walls, exposed out of the heat preservation groove and arranged oppositely, of the first heat preservation layer, or the second heat preservation layer and a first fixing assembly are jointly attached to the two first side walls, exposed out of the heat preservation groove and arranged oppositely, of the first heat preservation layer. The front cover plate forms a strip-shaped opening exposing the heat preservation groove. The box door is pivotally connected with the front cover plate so as to movably open and close the strip-shaped opening; the two second side walls, oppositely arranged in the second direction, of the hot rail at least abut against the second heat preservation layer. The first fixing assembly is used for keeping the relative position of the first heat preservation layer and the second heat preservation layer, and the first fixing assembly is separated from the front cover plate to at least partially expose the second heat preservation layer. According to the deformation hot box and the false twist texturing machine disclosed by the invention, the energy consumption of the deformation hot box and the false twist texturing machine is reduced, and the situation that chips of a heat preservation structure are diffused to a heat preservation groove and a hot rail to pollute fibers is prevented.

The present application relates to a garment processing device comprising: a drum comprising a drum body for providing a garment storage space, a front cover forming the front surface of the drum body, a rear cover forming the rear surface of the drum body, and a drum introduction opening provided through the front cover; a fixed panel positioned to be spaced apart from the rear cover and provided with a guide hole; a mounting body inserted into the guide hole to be able to reciprocate in a direction perpendicular to the fixed panel, the mounting body being divided into a first area facing in a direction in which the rear cover is positioned with reference to the fixed panel and a second area positioned opposite to the first area; a head provided in the first area to prevent the mounting body from being separated from the fixed panel; a power transfer portion comprising a housing fixed in the second area, an input shaft having one end positioned outside the housing and having the other side positioned inside the housing, an output shaft having one end fixed to the rear cover through the fixed panel and having the other end positioned inside the housing, and a gear unit positioned inside the housing so as to transfer rotational movements from the input shaft to the output shaft; a stator fixed in the second area or the housing so as to form a rotating field; a rotor, to which one end of the input shaft is fixed, and which is rotated by the rotating field; and a first displacement limiter provided in the second area to be positioned between the fixed panel and the housing, thereby limiting the displacement of the housing toward the fixed panel.

The invention particularly discloses a fractured rock mass grouting three-dimensional visualization test device and method, and relates to the technical field of rock mass engineering. The device comprises a test box body, a liquid inlet and outlet system, a monitoring system and a dynamic water environment simulation assembly, the test box body is made of a transparent acrylic material and is composed of an upper cover plate, a lower cover plate, a front cover plate, a rear cover plate, a baffle and two side cover plates, and a core experiment module is arranged in the test box body; the liquid inlet and outlet system is sequentially connected with the liquid holding device, the peristaltic pump, the valve, the Doppler flow velocity sensor and the test box body through rubber pipes; the monitoring system integrates an image collection unit and a data monitoring unit, an industrial-grade 3D camera and a binocular camera achieve visualization of the displacement process, and a fiber bragg grating pressure sensor synchronously collects fracture pressure data and transmits the fracture pressure data to a computer through a multifunctional data collection module. The device can be used for observing the displacement process of the slurry in the three-dimensional fracture in real time, synchronously monitoring key parameters, adapting to complex test working conditions and providing reliable support for grouting law research.

The invention discloses a prawn culture batch feeder with an EM bacteria decomposition function, and relates to the technical field of batch feeders, the prawn culture batch feeder comprises a transverse track framework, and a walking trolley is mounted on the transverse track framework; a feed storage tank for storing feed is mounted on the walking trolley; a screw feeder is arranged on one side of the storage tank; the tail end of the screw feeder is connected with the feed feeding mechanism; the feed feeding mechanism comprises a feeding front cover and a rear cover, and a screening cylinder is mounted in the rear cover; a block breaking assembly is installed in the screening barrel in a matched mode. According to the feed crushing device, the block crushing assembly also rotates, hardened feed can be crushed while the block crushing assembly rotates, the feed which is not crushed can be stirred into the auger roller, then the auger roller is used for conveying the feed back into the storage tank, and therefore circulating feeding of the feed can be formed, and repeated crushing of the hardened feed is facilitated; the granular feed falls into the front feeding cover and the rear feeding cover again through the screening cylinder and is discharged through the feeding pipe at the bottom of the rear feeding cover, and therefore feeding of the feed is achieved.

A front cover and a rear cover are fixedly installed and define a cavity, a driving gear shaft and a driven gear shaft are installed in the cavity, a first gear on the driving gear shaft is meshed with a second gear on the driven gear shaft, and the two gears and the inner wall of the cavity define an oil suction cavity and an oil discharge cavity. The two floating side plates are arranged on the two sides of the two gears in a penetrating mode through the driving gear shaft and the driven gear shaft respectively, an ear-shaped high-pressure oil groove and an unloading groove are formed in the face, close to the gears, of each floating side plate, the ear-shaped high-pressure oil grooves are close to one side of the oil discharge cavity, the unloading grooves are close to one side of the oil suction cavity, and the two ends of the unloading grooves are communicated with through holes of the floating side plates respectively. An ear-shaped groove is formed in the face, away from the gear, of each floating side plate, and a compensation area is formed on the floating side plates around the ear-shaped grooves. And a radial gap is formed between the peripheral edge of the floating side plate and the inner wall of the cavity. The comprehensive performance of high pressure, large displacement, low noise and high efficiency of the bevel gear pump is improved.

An electrical connector assembly quickly and easily provides mechanical and electrical connections between two flat flexible conductors, each having multiple electrically conductive traces provided thereon, in a sealed environment that resists the entry of contaminants therein. The electrical connector assembly includes an electrically conductive structure, a wire contact wedge supporting the electrically conductive structure, a connector housing supporting the wire contact wedge and the electrically conductive structure, and a front cover supported on the connector housing.

The invention provides a permanent magnet radial-axial collaborative balancing device and method for a shield pump, and belongs to the technical field of shield pumps. The device comprises a pump shell, an impeller, a rotor assembly, a stator assembly, a shaft, a thrust bearing, a rotor permanent magnet component and a static permanent magnet component, the rotor permanent magnet component and the static permanent magnet component correspond to each other, the rotor permanent magnet component is embedded below an impeller front cover plate opening ring, and the static permanent magnet component is embedded into the corresponding inner wall of the pump shell. The magnetization direction and the axis of the pump shaft form a preset inclination angle and are in mirror symmetry, so that a repulsive magnetic circuit with opposite same-name magnetic poles is formed; space magnetic force generated during working can be decomposed into radial and axial components. The radial component provides restoring force pointing to the center when the rotor deviates, and the radial stability is enhanced. The axial component counteracts the axial thrust of the fluid, and the thrust bearing load is reduced. External energy input is not needed, the structure is compact, vibration noise can be effectively restrained, and the service life of the bearing is prolonged.

An electronic watch may include a housing defining a side wall, a display, a front cover positioned over the display, and an input system configured to receive a rotational input and a translational input. The input system may include a crown including a knob external to the housing and a rotor coupled to the knob and configured to rotate in response to the rotational input and translate in response to the translational input. The input system may further include a first laser module configured to direct a first laser beam onto the rotor and receive first reflected light from the rotor, a second laser module configured to direct a second laser beam onto the rotor and receive second reflected light from the rotor. The electronic watch may further include a processing system coupled to the first and second laser modules and configured to determine a parameter of the rotational input.

The invention discloses a printer mounting structure and an automatic assembly method thereof, the printer mounting structure comprises a front cover, a middle frame, a base, a flip cover and a movement of a printer, the front cover is provided with a lead-in structure for positioning a wire pressing plate, and the middle frame is provided with a positioning piece for positioning a mainboard and a positioning structure for positioning a weighting block. The base is provided with a guide positioning structure used for guiding assembly and preventing looseness, the turning cover is provided with a rubber roller mounting structure used for assembling a rubber roller, and positioning sleeves used for limiting axial movement of the rubber roller together with the rubber roller mounting structure are arranged on the two sides of the rubber roller. Positioning and clamping structures which are matched with one another are arranged among the machine core, the front cover, the key lamp panel, the label and the middle frame, by optimizing the positioning and connecting structures of all the assemblies, automatic and accurate assembly is achieved, manual intervention is reduced, and the production efficiency and the assembly quality are improved.

The invention provides a pneumatic driving part and a pneumatic valve, and relates to the technical field of valve control. The pneumatic driving piece comprises a front cover, a rear cover, a cavity and a piston piece; the first end of the cavity is connected with the front cover, the second end of the cavity is connected with the rear cover, the piston piece is arranged in the cavity, and the cavity is divided into a first inner cavity corresponding to the front cover and a second inner cavity corresponding to the rear cover based on a piston head of the piston piece; the piston piece is used for moving based on the pressure difference between the first inner cavity and the second inner cavity; the front cover is provided with a first one-way sealing piece, and the first one-way sealing piece is used for buffering the moving tail end, moving in the first direction, of the piston piece. The rear cover is provided with a second one-way sealing piece, and the second one-way sealing piece is used for buffering the moving tail end, moving in the second direction, of the piston piece. The first direction is the direction from the rear cover to the front cover, and the second direction is the direction from the front cover to the rear cover. And the movement tail ends of the piston piece in different directions can be buffered, and impact caused by inertia is effectively reduced.

The invention provides a high-power two-stage pump axial force adjusting device with a complex leakage channel. The high-power two-stage pump axial force adjusting device comprises a first-stage pump and a second-stage pump. A primary pump impeller is installed on the main shaft and comprises a primary pump impeller front cover plate, the primary pump impeller front cover plate is coaxially sleeved with a primary pump front floating ring, and axial force adjustment is achieved by adjusting the flow of a primary pump front leakage channel through a radial sealing gap of the primary pump front floating ring. The first-stage pump impeller rear cover plate comprises a first-stage rear cover plate body, the axial rear end face of the first-stage rear cover plate body integrally extends backwards in the axial direction to form a first-stage throttling convex shoulder, and the first-stage throttling convex shoulder is coaxially sleeved with a first-stage pump rear floating ring. The first-stage throttling convex shoulder divides a first-stage pump rear leakage channel into a high-pressure area before floating ring leakage and a low-pressure area after floating ring leakage, area distribution of the high-pressure area and the low-pressure area is changed, and adjustment of axial force is achieved. According to the device, the axial force adjustment problem of the high-power two-stage pump with a complex leakage channel is solved, and the working reliability of an engine is improved.

This invention provides a linear driving mechanism having a housing, front and rear covers fixed at opposite ends of the housing, a stator arranged inside the housing, and a hollow rotor arranged inside the stator, driven by the stator to rotate. The linear driving mechanism further includes a rolling lead screw fitted inside the rotor, a first bearing, and a second bearing. The rolling lead screw includes a central screw rod and a screw nut. The screw nut is fixedly sleeved around the inner peripheral side of the rotor near the front cover. The linear driving mechanism of the present invention can enhance the integration of the rolling lead screw and rotor to reduce the volume space of the linear driving mechanism, meeting the demand for miniaturization.

The utility model discloses a screw pump with an adjustable shaft seal position structure, which relates to the technical field of screw pumps and comprises a driving screw, a shaft elastic retainer ring is arranged on the outer side of the top of the driving screw and clings to the end of an adjusting shaft sleeve, a sealing gland is fixedly connected to the outer side of the driving screw, and the sealing gland is fixedly connected to the outer side of the driving screw. A bearing seat is arranged at the end, close to the front end cover, of the sealing gland, a screw is in threaded connection with the end, away from the front end cover, of the sealing gland, the bearing seat is in threaded connection with the sealing gland through the screw, and a bearing is arranged at the bottom of the end, close to the front end cover, of the driving screw. Wherein an O-shaped sealing ring groove is formed in the outer surface of the bottom of the driving screw rod, an elastic check ring groove for a hole is formed in the outer surface of the top of the driving screw rod, an adjusting shaft sleeve is arranged on the outer side of the driving screw rod, and the technical problems that the sealing replacement process is tedious, only one sealing material can be selected, and many limitations exist are solved.

An electric compressor includes a housing, refrigerant inlet port, a refrigerant outlet port, an inverter section, a motor section, a compression device and a front cover. The housing defines an intake volume and a discharge volume. The refrigerant inlet port is coupled to the housing and is configured to introduce the refrigerant to the intake volume. The compression device is a compression device configured to compress the refrigerant. The refrigerant outlet port is coupled to the housing and is configured to allow compressed refrigerant to exit the electric compressor from the discharge volume.

The present disclosure relates to a vehicle front of a motor vehicle (1) comprising a functional unit (21) with a front cover (213) and an upper body panel (20). The upper body panel (20) is arranged above the functional unit (21) such that a front edge (201) of the upper body panel (20) is spaced apart from an upper front edge (214) of the front cover (213). A bracket (30) is attached to an upper housing side of the functional unit (21), the bracket (30) having a lower section (35) extending between the front edge (201) of the upper body panel (20) and the upper front edge (214) of the front cover (213). A first groove (33) is further formed on the lower section (35), into which a first spring (203) formed on the upper body panel (20) engages.The present disclosure further relates to a corresponding bracket and a functional unit for a vehicle front.

The utility model relates to the technical field of building material test piece manufacturing equipment, in particular to a test piece batching tool for a proportioning test of construction waste roadbed filling soil, which comprises a frame body, a front cover, a partition plate, an unloading drawing plate, a drawing plate film and a film roller, wherein the front cover is mounted at one end of the frame body, the unloading drawing plate is mounted at the lower part of the frame body, the frame body, the front cover and the unloading drawing plate form a batching box with an upper opening, and the partition plate is mounted in the frame body and used for partitioning the space in the batching box; the material supply proportion is controlled through the partition plate, weighing operation is converted into measurement operation, the operation process is simplified, meanwhile, the installation angle and position of the partition plate are changed, continuous change of the proportion of a single test piece can be achieved, the function of testing indexes of test pieces with different proportions at different positions of the same test piece is achieved, the manufacturing amount of the test pieces is reduced, and the cost is reduced. And the efficiency of related work is improved.

The invention belongs to the technical field of centrifugal pump production, and particularly relates to a multi-stage centrifugal pump impeller strength automatic detection system and method.The multi-stage centrifugal pump impeller strength automatic detection system comprises a lifting turnover assembly, a horizontal plate base, a clamping assembly, a cover plate strength detection assembly and a blade strength detection assembly, and the clamping assembly used for clamping and locking a combined closed impeller is arranged below the horizontal plate base; a lifting and overturning assembly used for driving the clamping assembly to conduct lifting and horizontal overturning actions is installed on the upper side of the horizontal plate base. A cover plate strength detection assembly used for detecting the strength of the front cover plate, the rear cover plate or the annular rotating plate is installed on the horizontal plate base, and a blade strength detection assembly used for detecting the strength of blades rotating downwards in different directions is installed on the horizontal plate base. The device is reasonable in design, and meets the requirement for automatic detection of the strength of the cover plate and the blades in the combined closed impeller in different rotation directions.

This utility model discloses a bidirectional self-locking motor for a height-adjustable desk, including a front cover (1) and a rear cover (2). A stator (3) is provided between the front cover (1) and the rear cover (2). Multiple coils (4) are provided in the stator (3). A rotor (5) is provided inside the stator (3). Multiple permanent magnets (6) are provided on the outside of the rotor (5). A rotating shaft (7) is provided on the axis of the rotor (5). A first ball bearing (8) is provided between the rotating shaft (7) and the rear cover (2). A spring washer (9) and a friction plate (10) are provided in sequence on the rear side of the first ball bearing (8). A screw (11) is provided on the rear side of the friction plate (10). A screw groove is opened at the front end of the rotating shaft (7) to form a worm (12). A worm wheel (13) is provided on one side of the worm (12). The worm wheel (13) is connected to the front cover (1) through a bracket (14). This utility model has the advantages of convenient installation, low failure rate, low noise, and bidirectional self-locking function.

The utility model relates to the technical field of lighting lamps and lanterns, in particular to a combined type driving lamp with a middle-distance and high-distance lighting function, which comprises a rear shell, a light-transmitting front cover and a lamp assembly, and the rear shell is hollow and is provided with a front end opening; the light-transmitting front cover is arranged at the front end opening and is sealed with the rear shell; the lamp assembly is arranged in the rear shell and can irradiate middle and high beams and low beams towards the light-transmitting front cover, and the illumination range of the middle and high beams and the illumination range of the low and high beams are both below the horizontal direction. The driving lamp is used for solving the problems that an existing driving lamp is difficult to illuminate in a medium-long distance and a short distance, and part of light rays are difficult to illuminate.

The utility model provides a laser pipe cutting feeding chuck which comprises a machine frame, a main shaft rotatably arranged in the machine frame, a rotation driving mechanism arranged on the machine frame and used for driving the main shaft to rotate, a shell fixedly connected with the main shaft, a front cover fixedly arranged at the front end of the shell, an inner piston and an outer piston, the transverse clamping jaws and the vertical clamping jaws are correspondingly driven by the inner piston and the outer piston through two sets of transmission mechanisms respectively; the three-way air pressure gyrator is internally provided with two power air passages and a chip blowing air passage and is fixedly connected with the main shaft in an airtight manner; the two power air passages and the chip blowing air passage of the three-way air pressure gyrator are respectively communicated with the main shaft, the two power air passages in the shell and the chip blowing air passage in the chuck; the transmission mechanism comprises a lever and a power wedge block. Through the improvement of the structure, the problems that an O-shaped sealing ring of an existing similar chuck is prone to abrasion and difficult to replace can be effectively solved, the stroke of the clamping jaws can be enlarged by nearly one time, and therefore the cost performance of the chuck is remarkably improved.

An electronic watch may include a housing defining a side wall, a display, a front cover positioned over the display, and an input system configured to receive a rotational input and a translational input. The input system may include a switch element positioned within the housing and defining a first opening along a top of the switch element, a crown including a knob external to the housing, and a shaft assembly coupled to the knob and extending through a second opening in the side wall of the housing and through the first opening in the switch element, the shaft assembly defining an actuation feature configured to actuate the switch element in response to the translational input, and a rotation sensing system configured to detect the rotational input.

An electric compressor includes a housing, refrigerant inlet port, a refrigerant outlet port, an inverter section, a motor section, a compression device and a front cover. The housing defines an intake volume and a discharge volume. The refrigerant inlet port is coupled to the housing and is configured to introduce the refrigerant to the intake volume. The compression device is a scroll-type compression device configured to compress the refrigerant. The refrigerant outlet port is coupled to the housing and is configured to allow compressed refrigerant to exit the scroll-type electric compressor from the discharge volume. The electric compressor includes integral pressure(s) and / or temperatures sensor(s).

The present invention discloses an embedded hard cover, comprising a car cover body and a guide rail system. The car cover body comprises a large front rail system, a guide rail system, a rear rail, multiple plate bodies, and multiple rotating shafts. The central hole of the large front rail corresponds to a front plate unlocking mechanism; the unlocking mechanism can simultaneously drive two front panel locks to unlock, making it convenient to operate.

The utility model discloses an ultrasonic treatment head and ultrasonic therapeutic apparatus relates to ultrasonic treatment technical field, wherein the ultrasonic treatment head includes casing, sleeve, water storage cabin, front cover and sensor, the sleeve is installed on the casing, the water storage cabin structural part is inserted in the sleeve to with the sleeve sliding connection, and the sensor is installed on the front cover. The water storage bin structure is arranged in the shell, the sleeve is arranged in the water storage bin structure so that the water storage bin structure can move in the axis direction of the sleeve under the constraint of the sleeve, the front cover is connected with the water storage bin structure so as to move along with the water storage bin structure, and the sensor is arranged between the front cover and the shell and used for detecting the pressure between the front cover and the shell. In the ultrasonic treatment head, the water storage bin structure moves under the constraint of the sleeve, so that the water storage bin structure and the front cover are ensured to move along the axis direction of the sleeve all the time, and the problems of offset and blockage are effectively avoided.

The invention relates to the technical field of feeding and sorting, in particular to a feeding and sorting device of a chip sorting machine, which comprises a sorting box, two conveying devices and a sorting assembly, the sorting assembly comprises two chip moving seats, a plurality of chip supporting plates, a plurality of pressure sensors, a plurality of infrared sensors, a plurality of negative pressure adsorption mechanisms and a plurality of sorting seats, firstly, the models of chips are identified, then conveying equipment is started, and a chip moving seat is driven to move to one side of a sorting seat exclusive to the model; at the moment, the chip is transferred to the sorting base from the chip moving base, and when the front face cover plate of the chip faces upwards, an adsorption device in the chip sorting machine is used for adsorbing the chip and moving the chip into the sorting base to be placed; in this way, the orientation of the front face and the back face of the chip can be accurately recognized, the chip can be efficiently and stably adsorbed and placed in the sorting base according to different orientations, workers do not need to deliberately place the chip in one orientation, and the chip feeding and sorting efficiency is remarkably improved.

An on-frame space portion (14) is formed on a revolving frame (5), the on-frame space portion (14) being surrounded on the front, back, left and right sides by a foot part (4A1) of a lower boom (4A) configuring part of a working mechanism (4), an engine (7) serving as a power source, a cab (9), and a cover member (10), a fuel tank (11) and an operating oil tank (12) serving as a right-side structure. An accumulator (15) and a relief valve (20) are arranged in the on-frame space portion (14). On top of that, the relief valve (20) is located in a position higher than a line connecting part (15A) of the accumulator (15).