8724 results about "Rubber ring" patented technology

The invention discloses a prefabricated wallboard assembly structure and an assembly method thereof, and relates to the technical field of building prefabricated wallboards, the prefabricated wallboard assembly structure comprises a first wallboard and a second wallboard, a plurality of inserting grooves are formed in one side of the first wallboard, and hydraulic expansion splicing mechanisms are symmetrically mounted in the inserting grooves up and down; the hydraulic expansion splicing mechanism is composed of a metal sleeve, meshing teeth, a sealing rubber ring, a piston and an oil injection mechanism, the metal sleeve and the inserting groove are welded and fixed, an oil cavity is formed in the metal sleeve, multiple sets of mounting grooves are formed in one end of the metal sleeve, four annularly-distributed sliding grooves are formed in the outer sides of the mounting grooves, and the sliding grooves are communicated with the oil cavity. A plurality of inserting blocks are arranged on one side of the second wallboard, connecting holes are formed in the inserting blocks in an up-down symmetrical mode, a plurality of meshing grooves are formed in the inner ends of the connecting holes, and the problem that most existing prefabricated wallboards are connected through bolts, stress concentration is prone to occurring, and consequently the structural stability is reduced is solved.

The invention discloses a PACK same-side welded rolling groove sealing structure large cylindrical battery, which comprises a plurality of battery main bodies and modules, each battery main body is provided with a rolling groove seal, a cover cap, a steel shell, a rolling groove end height, a cover cap explosion-proof sheet, a cover cap rubber ring and a PACK connecting sheet, the steel shell wraps the outer side of the battery main body, the cover cap is located at the top of the steel shell, and the PACK connecting sheet is located at the bottom of the steel shell. The cap anti-explosion piece is located on the inner side of the steel shell, the rolling groove end height is located on the top of the outer side of the rolling groove sealing opening, and the cap rubber ring is located on the inner side of the rolling groove end height. The length of the covered edge of the cap anti-explosion piece is larger than that of a conventional cap, the height of the cap rubber ring is larger than that of the conventional cap, the end height of the steel shell rolling groove is larger than that of a conventional battery, the covered edge of the sealed steel shell is longer to form an effective negative electrode end, and the requirement for welding the positive electrode and the negative electrode on the same side in PACK application of the rolling groove sealing structure battery can be met; and the length of the covered edge of the steel shell is long, so that the sealing area is effectively increased, and the liquid leakage abnormity is effectively improved.

The invention belongs to the field of glass grinding, and discloses an edge grinding treatment device for glass processing and an operation method thereof.The edge grinding treatment device for glass processing comprises a machine body, two sets of transmission frames are symmetrically arranged at the center concave position of the machine body, and each set comprises two transmission frames which are symmetrically distributed up and down; a mounting frame is fixedly connected between the side walls of each set of transmission frames, a conveying belt is arranged on the transmission frames, T-shaped supporting rods are uniformly and fixedly connected to the conveying belt, sealing sleeves are slidably connected to the T-shaped supporting rods, and suction cups are fixedly connected to the ends, away from the conveying belt, of the sealing sleeves; a conveying belt is matched with a sealing sleeve and a suction cup, the upper face and the lower face of the two side edges of glass can be clamped, fixed and transmitted, the suction cup is matched with a rubber ring arranged on the inner side, the sealing performance can be improved, meanwhile, the adsorption force on the glass is increased, and the glass is stressed more evenly in the polishing process; therefore, the situation that the polishing precision is reduced due to uneven stress of the glass is avoided.

The invention provides automatic fan assembling equipment which comprises a rack, a rotating disc, a fixed disc, a divider and a motor, the rotating disc, the fixed disc, the divider and the motor are installed on the rack, an output shaft of the motor is connected with an input shaft of the divider, and the divider is fixed to the rack; a fixed shaft and a rotating shaft are arranged at the top of the divider, the rotating disc is arranged on the rotating shaft of the divider, and the fixed disc is arranged on the fixed shaft of the divider; a circuit board feeding station, a first dispensing station, a volute feeding station, a circuit board overturning station, a rubber ring feeding station, a rubber ring mounting station and a discharging station are sequentially arranged in the anticlockwise direction of the rotating disc, and a first positioning jig used for containing a circuit board and a second positioning jig used for containing a volute are arranged on the rotating disc. According to the automatic assembling equipment for the fan, an automatic, continuous and precise assembling mode is achieved, the quality and economical efficiency of complete machine assembling of the centrifugal fan are remarkably improved, and the stability of product quality is guaranteed.

The invention relates to the technical field of intelligent glasses production equipment, and discloses intelligent glasses leg metal shielding cover frame automatic rubber ring pasting equipment which comprises a feeding sliding table, a glasses positioning table, an outer supporting attaching assembly used for pressing the inner side face of a rubber ring, and an opposite extrusion attaching assembly used for pressing the upper face and the lower face of the rubber ring. And the release paper adsorption positioning assembly is used for accurately positioning release paper to which the rubber rings to be assembled are adhered on the periphery of the frame of the metal shielding cover to which the rubber rings are to be adhered on the inner sides of the left glasses leg and the right glasses leg, and the equipment utilizes the glasses positioning table to position and limit the glasses frame and the glasses legs to which the rubber rings are to be adhered. Then the release paper adsorbing and positioning assembly is used for manually positioning and adsorbing the release paper pasted with the rubber ring firstly and then automatically positioning and adsorbing the release paper pasted with the rubber ring, then the outer supporting and attaching assembly and the opposite extruding and attaching assembly are used for automatically assisting in pasting the inner side face, the upper face and the lower face of the rubber ring respectively, the precise automatic pasting action is completed in a narrow space, the pasting position precision is high, and the production efficiency is high.

The present invention discloses a low-voltage harmonic filter module, which relates to the technical field of circuit devices. This low-voltage harmonic filter module includes a filter body and a base, a plurality of shock-absorbing mechanisms are arranged between the filter body and the base, and each shock-absorbing mechanism includes an L-shaped plate, a first mounting mechanism is arranged between the bottom of each L-shaped plate and the base, and the side wall of each L-shaped plate is fixedly connected with a connecting plate, the side wall of the connecting plate is fixedly connected with an annular cover, and a moving column is inserted in the annular cover, a rubber ring is fixedly connected between the moving column and the annular cover, and a first spring is fixedly connected between the moving column and the bottom of the annular cover, and a second mounting mechanism is arranged between the moving column and the filter body. This low-voltage harmonic filter module can have a good shock-absorbing effect on the filter body, ensure its filtering effect and service life, and at the same time, it can consume the energy generated by the vibration, so that the shock-absorbing effect is better.

The magnetic traction tool comprises an endoscope device and a traction device, the traction device is clamped at one end of the endoscope device, the traction device is composed of a rubber ring and a magnetic ring, the traction device is composed of a shell and a magnet, and the magnet is connected with the shell through an adjusting mechanism. The endoscope device is adopted for feeding the traction device, the periphery of the mucous membrane is fixed through the traction device, mucous membrane traction is conducted through the traction device on the outside, the mucous membrane on the periphery of a focus is stripped through magnetic traction, the operation convenience is effectively improved, and the problem that mucous membrane resection is inconvenient due to the narrow operation area is solved; the operation difficulty is effectively reduced, when the magnet ring is attracted through the magnet, magnetic force adjustment can be achieved through the adjusting mechanism, adjustment can be conducted according to the distance of the traction position, it is guaranteed that traction is in place so that smooth stripping of the mucous membrane can be guaranteed, magnetic traction stripping can not be limited by the traction direction, and mucous membrane resection convenience is guaranteed.

The invention provides a waterproof plug connector based on dynamic sealing compensation, which is applied to the technical field of plug connector connection and comprises a plug connector male seat and a plug connector female seat, the plug connector male seat and the plug connector female seat are both provided with threading holes, the plug connector male seat is provided with a plug connector mounting hole, a dynamic sealing element is arranged in the plug connector mounting hole, and the dynamic sealing element is arranged in the plug connector male seat. The sealing air bag can be extruded to achieve sealing in the plugging process of the plugging male seat and the plugging female seat, and when water seepage occurs, water can be absorbed and the sealing air bag can be further extruded to expand, so that sealing between the plugging male seat and the plugging female seat is tighter, dynamic sealing is achieved, the waterproof effect is better, and the service life of the plugging male seat and the plugging female seat is prolonged. The anti-dragging blocking piece is arranged in the threading hole, double sealing can be conducted on a gap between the wire and the threading hole through the plug and the rubber ring, meanwhile, the wire in the threading hole can be fixed, when the wire is pulled, the wire can be prevented from being dragged out, and the stability of wire connection is improved.

The utility model relates to the technical field of building construction, and discloses a material lifting mechanism for building a steel structure shed, which comprises a base, a lifting component is mounted at the top of the base, a lifting bin is fixedly connected to the top of the lifting component, a winding roller is rotatably connected to the inside of the lifting bin, a lifting rope is fixedly connected to the periphery of the winding roller, and the lifting rope is fixedly connected to the top of the lifting component. A mounting plate is fixedly connected to the outer wall of the hoisting bin, a motor is fixedly connected to the top of the mounting plate, a self-locking assembly is mounted in the middle of the mounting plate, a lubricating assembly is mounted in the middle of the hoisting bin, and an output assembly is mounted at the bottom of the mounting plate. According to the self-locking device, after the motor stops running, the self-locking assembly can rapidly trigger a locking mechanism, it is ensured that the lifting rope is firmly fixed through the friction effect of the self-locking wheel and the rubber ring and the cooperation of the clamping column and the spring, and the risk of loosening of the lifting rope or falling of materials can be effectively avoided even in unforeseen circumstances.

The present invention relates to the technical field of energy storage connectors. Specifically, it relates to a waterproof energy storage connector, which includes a mounting seat and a plug seat. A first conductive terminal is provided on one side of the mounting seat, and a second conductive terminal is provided on the other side. A docking sleeve is provided inside the plug seat, and a third conductive terminal is provided inside the docking sleeve. A pressing assembly is rotatably connected to the second conductive terminal. Two trigger assemblies are symmetrically arranged at one end of the pressing assembly away from the mounting seat. The pressing assembly is driven to work through the trigger assemblies, pressing a first annular airbag, so that the gas inside it is discharged into the second annular airbag, and then the second rubber ring is lifted to fit and press against the inner wall of the docking sleeve, forming a multi-layer waterproof barrier. Secondly, by automatically inflating and lifting the second rubber ring, during the process of the docking sleeve being inserted, the second rubber ring slowly rises from the annular card slot to press against the inner wall of the docking sleeve. This progressive contact method reduces the direct friction and wear with the inner wall of the docking sleeve, effectively improving the waterproof effect.

The utility model relates to the technical field of quick female heads, in particular to a self-locking quick female head for a conical end socket, which comprises a female head main body, a butt joint pipe, a threaded connection pipe and a positioning component, a mounting plate is arranged at the position, close to the positioning component, in the female head main body, and a sealing component is mounted at the upper end in the female head main body. A fixing component is arranged on the lower side of the sealing component, a rubber ring is arranged on the upper side of the butt joint pipe, and a guide-in pipe is arranged at the upper end of the female head body. The guide-in pipe is fixed inside the female head body through the fixing component, the conical head is positioned through the positioning component, the firmness of connection between the female head body and the guide-in pipe is improved, the connecting position of the conical head and the butt joint pipe is sealed through the rubber ring, and the sealing performance of the guide-in pipe and the upper end of the female head body is improved through the fixing component and the sealing component. The conical head is fixed through the fixing component, the fixing component is fixed through inflation of the sealing component, and fixing operation is convenient and fast.

The utility model relates to a cable bridge elbow capable of being adjusted left and right, which belongs to the technical field of cable bridges and comprises a first bridge, a second bridge is arranged on the right side of the first bridge, connecting frames are fixedly connected to the opposite side faces of the first bridge and the second bridge, a telescopic sleeve is fixedly connected between the two connecting frames, and the telescopic sleeve is fixedly connected with the first bridge and the second bridge. The bottom face of the first bridge frame is fixedly connected with a positioning rod, and the bottom face of the second bridge frame is rotationally connected with a connecting rod through a bearing. According to the cable bridge elbow capable of being adjusted left and right, under the action of the telescopic sleeve, the angle of the bent position is adjusted, the placement angle of the first bridge is conveniently adjusted, the construction efficiency is improved, the first bridge is driven to move through cooperation between the driving rod and the mounting rod, operation of workers is facilitated, and meanwhile the cable bridge elbow is convenient to use. And the connecting rod is fixed through the attachment between the rubber ring and the connecting rod, so that the stability of the connecting rod is improved, and the device is more convenient and practical.

The utility model provides a corrosion-resistant flange sealing ring for a high-speed railway pipeline, and relates to the technical field of sealing rings. The utility model comprises a flange body, a rubber ring is arranged on one side of the flange body, a fixing device is arranged on the arc surface of the rubber ring, the fixing device comprises two mutually symmetrical grooves, the two grooves are arranged on the arc surface of the rubber ring, a mounting groove is arranged on the flange body corresponding to the rubber ring, the size of the mounting groove is matched with the size of the rubber ring, the rubber ring is fixedly connected with a spring by means of the groove, one end of the spring is fixedly connected with a clamping block, a clamping groove is arranged on the flange body corresponding to the clamping block, the size of the clamping groove is matched with the size of the clamping block, and a triangular plate is fixedly connected to the end of the clamping block away from the rubber ring. The utility model achieves the effect of fixing the rubber ring and the flange body through the fixing device, and brings convenience to the staff to replace the rubber ring when the rubber ring is aged.

The utility model provides a coupler, and relates to the technical field of couplings. The coupling is used for solving the technical problem that the coupling provided by the existing patent cannot be connected with two pipe fittings with offset axes. The coupler comprises two connecting seats, a plurality of connecting rods and a plurality of connecting rods, the connecting hole is formed in one end of the connecting seat; a plurality of connecting columns are mounted on each of the two connecting seats; and a rubber ring, wherein the rubber ring is arranged between the connecting columns on the two connecting seats. Through the arrangement of the rubber ring and the cavity, the rubber ring can be bent and deformed, so that the two connecting bases are shifted, two pipe fittings with the axes not aligned are connected, and the effect of connecting the two pipe fittings with the axes not aligned is achieved.

The lithium battery cap assembly machine comprises a main machine frame, an index plate, an anti-explosion piece feeding device, a top cover feeding device, a welding device, an edge covering device, a conveying mechanical arm, a shaping device, a rubber ring feeding device and an internal resistance measuring device, and the index plate is installed on the main machine frame; a plurality of sets of jigs arranged around the center axis of the index plate in the circumferential direction are installed in the index plate, the anti-explosion piece feeding device drives anti-explosion pieces to be conveyed to the jigs, the shaping device shapes products, the rubber ring feeding device drives rubber rings to be fed, and the internal resistance measuring device detects the internal resistance of the products. Various working procedures such as anti-explosion piece feeding, top cover feeding, welding, edge covering, shaping, rubber ring feeding and internal resistance measuring are completed on one machine, the automation degree is high, the lithium battery cap is rapidly assembled, the lithium battery cap does not need to be carried to another machine table for continuous shaping and internal resistance measuring, the production time is shortened, and the product competitiveness is enhanced.

The invention discloses a wear-resistant lining plate edge grinding device and an edge grinding method thereof, and relates to the technical field of wear-resistant lining plate machining device.The wear-resistant lining plate edge grinding device comprises a base, a supporting base is installed at the center of the upper end face of the base, and a containing plate with the same radius as the supporting base is arranged above the supporting base; an annularly distributed plate body reinforcing mechanism is arranged between the placing plate and the supporting base, the plate body reinforcing mechanism comprises a sleeve which is embedded into the supporting base, a corrugated sealing rubber sleeve is arranged above the sleeve, a fixing ring is arranged above the corrugated sealing rubber sleeve, a rubber ring is arranged at the top end of the fixing ring, and the rubber ring is arranged at the top end of the fixing ring. The problems that reasonable arrangement and flexible movement of a grinding mechanism are affected due to the fact that the size of a lining plate edge grinding device is large, and the machining position of a lining plate is prone to deviation due to violent friction generated in the contact process of a grinding wheel and the lining plate are solved.

The invention relates to the technical field of plastic-lined pipe production, in particular to an automatic bonding device for large-diameter plastic-lined pipe production. The invention provides an automatic bonding device for large-diameter plastic-lined pipe production, which can adapt to plastic-lined pipes with different pipe diameters and ensure the bonding quality and the production efficiency of the plastic-lined pipes. An automatic bonding device for large-diameter lining plastic pipe production comprises a base, side plates and the like, and the side plates are connected to the upper sides of the left portion and the right portion of the base. After a metal pipe penetrates through a heat conduction ring and a water spraying ring, a contact roller makes contact with the outer wall of the metal pipe, a high-temperature-resistant rubber ring and a shaping rubber block are extruded by the outer wall of the pipe to deform, and gaps between the heat conduction ring and the pipe are filled in a self-adaptive mode, so that the gaps of the same size are always kept between alumina fiber heat preservation cotton and the outer walls of the metal pipes with different pipe diameters; and the effects that the device can adapt to the plastic-lined pipes with different pipe diameters, and the bonding quality and the production efficiency of the plastic-lined pipes are ensured are achieved.

The utility model relates to the technical field of nodular cast iron pipes, in particular to a socket type pipeline connector which comprises a socket, a spigot and a sealing piece, the socket comprises an annular sealing groove, an annular limiting part and a deflection groove which are coaxial, the annular limiting part separates the annular sealing groove and a conical groove, an annular retaining groove is formed in the annular sealing groove, and the deflection groove is formed in the spigot. An annular containing groove is formed by the distance between the annular retaining groove and the annular limiting part. The maximum-diameter port of the conical groove is connected with the annular limiting part; the inner diameter of the annular limiting part is smaller than the maximum inner diameter of the conical groove; the sealing piece comprises a hard rubber ring and a soft rubber ring, the outer ring of the hard rubber ring is arranged in the annular retaining groove, the outer ring of the soft rubber ring is tightly attached to the annular containing groove, the inner diameter of the hard rubber ring and the inner diameter of the soft rubber ring are smaller than the inner diameter of the annular limiting part, and the outer wall of the inserting opening is attached to the inner ring of the soft rubber ring in a sealed mode. Under the condition that the insertion depth of an insertion opening of an existing socket and spigot type pipeline connector into a deflection groove is the same, the deflection angle of the insertion opening in the deflection groove can be effectively increased.

The invention discloses a novel anti-floating anchor rod. The novel anti-floating anchor rod comprises a bottom anchoring part, a top anchoring part and an anchor cable. The top anchoring part is composed of an anchor backing plate and a working anchorage device, the anchor backing plate is composed of a lower pressure-bearing plate and an upper pressure-bearing cylinder, and the upper pressure-bearing cylinder is provided with a grouting hole. The bottom anchoring part comprises a guide bracket and a bearing plate, the anchor cable is connected with the bearing plate through a sealing locking nut, and the bearing plate is provided with a guide bracket mounting hole, an anchor cable hole and a grouting pipe hole. A waterproof rubber ring is arranged in the sealing locking nut, and the extrusion sleeve is filled with an anti-corrosion medium. A water swelling rubber ring and an isolation support are arranged on the anchor cable, grouting is completed after the anchor cable is tensioned through a grouting hole and a second center hole, and the phenomenon that underground water permeates along gaps of the rod body to cause water leakage is prevented. The invention further discloses a construction method of the novel anti-floating anchor rod. The construction method comprises the following steps of drilling, placing the bottom anchoring part, arranging the waterproof steel sleeve, treating the surface of the anchor cable, placing the lower bearing plate, installing the anchor bearing plate, tensioning the anchor cable and grouting. And through the method of firstly tensioning and then completing grouting, underground water permeation is prevented, and the waterproof performance of the underground structure is improved.

The invention relates to the technical field of image processing, in particular to a rubber ring contour burr detection method and system based on geometric transformation, and the method comprises the steps: obtaining a rubber ring image, and extracting the outer contour of a rubber ring and the contour of each burr in the rubber ring image; fitting the outer contour of the rubber ring by adopting a least square method to obtain an ellipse, and mapping the ellipse into a standard circle: carrying out bilinear interpolation resampling on the rubber ring image, and carrying out polar coordinate transformation on the rubber ring image by taking the circle center of the standard circle as an original point to generate an expanded image; generating a reconstructed image with enhanced burr features from the expanded image through wavelet transform, determining burr parameters of the reconstructed image, mapping the burr parameters back to a Cartesian coordinate system of the rubber ring image, and generating a detection result containing burr number, position and size information; according to the invention, the accuracy and robustness of tiny burr detection can be improved.

The invention relates to the technical field of expansion joints, in particular to an anti-corrosion and anti-dust corrugated pipe expansion joint which comprises a corrugated pipe, end pipes, flanges and a pull rod, the two ends of the corrugated pipe are connected with the end pipes, the end pipes are provided with connecting blocks with cambered surfaces, channels connected with the end pipes are formed in the connecting blocks, through openings communicated with the channels are formed in the flanges, and the pull rod is arranged in the through openings. A connecting cavity is formed in the flange, the connecting block is movably connected into the connecting cavity, a rubber ring is arranged on the side, located on the corrugated pipe, of the connecting cavity, the cambered surface is located on one side of the rubber ring, and an adjusting assembly with a push rod is arranged on the flange. The corrugated pipe is changed into a linear shape under the action of self stress through thermal expansion and cold contraction, and the sealing performance of the corrugated pipe expansion joint is ensured when a pipeline starts to convey materials, so that the shearing stress generated by bending of the corrugated pipe due to pipeline deformation is reduced, and the service life of the anticorrosive and dustproof corrugated pipe expansion joint is prolonged.

The invention relates to the technical field of photovoltaic panel welding, in particular to a workpiece feeding device of a bus bar welding machine, which comprises two fixing frames, feeding devices, a supporting device and a pushing device, the uniformly distributed feeding devices are mounted at the top of the fixing frames, the supporting device is arranged between the two fixing frames, and the pushing device is mounted on the top of the fixing frames. The device comprises a fixed frame, a driving motor, a driving shaft, a mounting frame, a fixed plate, a driving belt pulley, a driven belt pulley, a belt main body, a fixed shell, a supporting shell, a supporting wheel, a limiting plate, a threaded rod, a nut, a limiting rod, a rubber ring, a pushing spring and a dismounting main body, the driving belt wheel, the belt main body and the driven belt wheel can be driven to rotate through the driving motor and the driving shaft, the belt main body is attached to the supporting wheel so as to support the belt main body, the belt main body can be attached to the photovoltaic module all the time, and stable feeding of the photovoltaic module is guaranteed.

A dust bag, a self-cleaning dust collection seat, and a dust collection system are provided, the dust bag being configured to be detachably mounted on a dust bag support, and the dust bag including: a dust bag body; a snap plate fixedly connected to the dust bag body, the snap plate being provided with a snap plate opening, and the snap plate opening serving as an inlet of the dust bag, and a sliding plate slidably connected to the snap plate and configured to switch between a closed position and an open position, in response to the sliding plate being at the position, the sliding plate shielding the snap plate opening, and in response to the sliding plate being at the open position, the sliding plate exposing the snap plate opening; the edge of the snap plate opening being provided with a flexible rubber ring.

The utility model discloses a sealing type slewing bearing which comprises an inner ring and an outer ring which are arranged from inside to outside, a plurality of balls are arranged between the inner ring and the outer ring, the end face of the inner ring is higher than the end face of the outer ring, a sealing ring is arranged on the side face of the inner ring, and the inner ring and the outer ring are arranged in parallel. An annular protrusion is formed on the lower end face of the sealing ring, the end face of the outer ring is sunken downwards to form an annular groove, the annular protrusion is rotatably clamped in the annular groove, a gap exists between the lower end face of the sealing ring and the end face of the outer ring, and a rubber ring with a U-shaped section is detachably arranged at the end of the sealing ring. The problems that in the prior art, a rubber ring is arranged on the surface of a slewing bearing, one end of the rubber ring is clamped to the side face of an inner ring, the other end of the rubber ring is attached to the end face of an outer ring, after long-time use, the elasticity of the sealing rubber ring is reduced, the end of the rubber ring is prone to upwarp, and the sealing performance is reduced are solved.

The invention discloses a cabin-penetrating cable sealing assembly with a combined rubber ring, and relates to the field of cable cabin-penetrating sealing, and the cabin-penetrating cable sealing assembly comprises a cabin-penetrating pipe body and at least one sealing ring assembly. The cabin penetrating pipe body is provided with a pipe cavity which extends in the axial direction and allows a cable to penetrate through. The pipe cavity is divided into an in-cabin section and an out-cabin section. The sealing ring assembly comprises a set of lip-shaped sealing rings, lips of the set of lip-shaped sealing rings face the outside of the cabin, the in-cabin section is filled with the lip-shaped sealing rings in an overlapped mode in the axial direction, the cable is sleeved with the lip-shaped sealing rings, and the lip-shaped sealing rings comprise a main sealing ring and an auxiliary sealing ring. The gap between the cable and the cabin penetrating pipe body is filled with the main sealing ring. The auxiliary sealing ring fills a gap between the cable and the cabin penetrating pipe body, and the auxiliary sealing ring and the main sealing ring are arranged in an overlapped mode. The elasticity of the auxiliary sealing ring is smaller than that of the main sealing ring, and the abrasion resistance of the auxiliary sealing ring is larger than that of the main sealing ring. The cabin-penetrating cable sealing assembly with the combined rubber ring is high in sealing reliability.

A centrifugal pump shutdown sealing device based on axial thrust comprises a pump cover (1) and an annular plate (11), an inner cylinder (3) and an outer cylinder (5) are connected between the pump cover and the annular plate in a sealed mode, an inner corrugated pipe (4) and an outer corrugated pipe (8) are welded between the sections of the inner cylinder and between the sections of the outer cylinder respectively, a water injection port (6) is formed in the outer cylinder, and a guide rod (7) penetrates through the annular plate and is fixedly connected to the pump cover. The right end of the guide rod is sleeved with a spring (10) and screwed with an adjusting nut (11), the left side of the annular plate is connected with a rubber annular plate (13), a shaft sleeve (14) is fixed to the pump shaft, and the rubber annular plate can be attached to the right end face of the shaft sleeve. The sealing device has the advantages that all the components are installed on the pump cover, the load of the pump shaft is reduced, unbalanced force cannot be generated on the pump shaft, the sealing device is not prone to being damaged when the machine stops, and no adverse effect is generated on the pump shaft. When the centrifugal pump works, the rubber ring plate on the ring plate is separated from the shaft sleeve, and when the centrifugal pump stops, the rubber ring plate is tightly attached to the shaft sleeve.

The invention discloses a rubber sealing ring compression performance detection device and a detection method thereof.The rubber sealing ring compression performance detection device comprises a tensile machine, a mechanical arm, a feeding device and a discharging device, the tensile machine, the feeding device and the discharging device are arranged in a delta shape, and the feeding device and the discharging device are arranged on the two sides in front of the tensile machine; the mechanical arm is arranged between the feeding device and the discharging device. Through positioning of the mechanical arm, the central point of the rubber ring coincides with the force application axis of the tensile machine after the rubber sealing ring is placed on the compression device, the situation that the stress on one side of the rubber ring is large and the stress on the other side of the rubber ring is small in the detection process is avoided, and then the detection repetition precision is improved. According to the method for detecting the compression performance of the rubber sealing ring, the automation rate of the whole process from to-be-detected rubber ring feeding to detection completion and recovery is 100%, and the beneficial technical effects that the detection efficiency is high, and the influence of human factors in the detection process is small can be achieved.

The present invention provides an intelligent fetal heart monitoring device for obstetrics and gynecology, belonging to the technical field of fetal heart monitoring devices. The device for fetal heart monitoring includes: a monitoring host, the monitoring host is electrically connected to two monitoring probes through a wire; a mounting shell, having two, respectively fixed to the adjacent monitoring probes, the mounting shell is provided with a moving shell, the moving shell is fixed to a rubber ring, and a moving ring is slidably connected inside the moving shell; a plurality of moving blocks, respectively fixed to the adjacent moving rings; a first driving ring, having two, respectively rotatably connected to the adjacent moving shells. The present invention controls the movement of the moving ring to generate negative pressure inside the rubber ring, thereby adsorbing the monitoring probe on the abdomen of the pregnant woman, making the entire fixing process faster and more convenient, and at the same time, there is no need for the pregnant woman to lift her waist or use elastic bands for fixing, thereby improving the comfort of the pregnant woman during the monitoring process.

The utility model discloses a two-way sealing butterfly valve which comprises a sealing butterfly valve body, flange plates are fixedly connected to the two ends of the sealing butterfly valve body, a plurality of bolts penetrate through the outer sides of the flange plates, rubber rings are fixedly connected to the inner rings of the flange plates, and a limiting block is fixedly connected to one side of the middle of the interior of the sealing butterfly valve body. A limiting block is arranged on the outer side of the flow limiting plate, a limiting groove is formed in the outer side of the flow limiting plate and matched with the limiting block in a clamped mode, a flow limiting hole is formed in the flow limiting plate, a circulating hole is formed in the outer side of the middle of the flow limiting plate, and a conical pipe is arranged in the flow limiting hole in a sleeved mode. The sealing butterfly valve and the rubber ring are arranged, the sealing butterfly valve is connected with the pipeline, the rubber ring needs to be inserted into the pipeline in the connecting process, the sealing abutting effect is achieved, then the outer side of the rubber ring is sleeved with the sealing ring, and the sealing effect can be enhanced in the pipeline connecting process.

The utility model provides an urban refuse landfill covering film fixing device which comprises a pressing plate, a first circular groove is formed in the lower surface of the pressing plate, a circular column is fixedly installed on the top of the inner wall of the first circular groove, and a fixing nail is fixedly installed on the lower surface of the circular column. A circular ring is arranged on the outer side of the circular column in a sliding mode, two guide blocks are fixedly installed on the inner wall of the circular ring and are symmetrically arranged, two guide grooves are formed in the upper surface of the circular column, and the outer side of the circular ring is in movable contact with the inner walls of the guide grooves; through the arrangement of the pressing plate, the fixing nails, the circular ring, the rubber ring, the sharp block and the glue storage bag, the cover film can be conveniently and rapidly fixed, meanwhile, the pressing plate and the cover film can be conveniently pasted together, and the phenomenon that rainwater or other liquid permeates into the cover film is effectively prevented.