56results about How to "Avoid affecting the tightness" patented technology

The invention relates to a high-temperature and high-pressure true triaxial direct shear fracture seepage coupling testing device. Two first pressure heads and two pressure assemblies are arranged above and below a rock sample in a manner of being symmetrical about the center of the rock sample. The two second pressure heads are arranged on the left and right sides of the rock sample in a central symmetry manner relative to the rock sample. The first pressing head comprises a first pressing head body provided with a groove part. A part of the pressure assembly is accommodated in the groove part. The pressure assembly comprises a rubber capsule and a base plate, and the rubber capsule applies pressure to the rock sample through the base plate. Seepage media in a first seepage network groove formed in the first pressure head main body and a second seepage network groove formed in the base plate apply seepage pressure to the rock sample. The triaxial testing machine applies lateral confining pressure, axial pressure and high temperature to the rock sample. The true triaxial direct shear fracture seepage testing device has the beneficial effects that the true triaxial direct shear fracture seepage testing device is combined with a triaxial testing machine, a true triaxial direct shear fracture seepage test can be carried out on a rock sample under high-temperature and high-pressure conditions, and the practicability and the reliability are relatively high.

The invention discloses a water supply and drainage dispatching branch pipe butt joint supporting device used for municipal engineering. The device comprises a base and a mounting seat; the base is placed on the ground where a water pipe is located, and the top of the base is provided with a movable groove; and the mounting seat is welded to the top of a supporting rod, and a motor is fixed in the side end of the mounting seat in an embedded manner. The device comprises a knob, bottom blocks and guide grooves; the knob is in bearing connection to the edge end of the base, one end of the knob penetrates through the base and is connected with a first screw, and the top of an adjusting block is in shaft connection with a guide rod; the bottom blocks are located in top grooves and arranged on second screw rods in a threaded and sleeving manner, fixing rings are welded to the tops of the bottom blocks, and third screw rods are connected to one ends of bevel gear rollers; and the guide grooves are formed in the upper end face of the mounting seat. According to the water supply and drainage dispatching branch pipe butt joint supporting device used for municipal engineering, pipeline flange ports can be cleaned while positioning and butt joint are conducted on pipelines, impurities are prevented from affecting the sealing performance after butt joint, and meanwhile the device can be suitable for supporting operation on the ground with different slopes.

The invention discloses a modular self-dredging cloth bag fine filtering device, and belongs to the technical field of gas filtration. The filter bag can be divided into a plurality of independent filter units in a modular manner; on one hand, dust carried in air is bounced off through the elastic spherical air bag under the action of airflow on the outer side of the filter bag, and the filteringpressure of the filter bag is reduced; on the other hand, the vibration transmission effect of the elastic spherical air bag and the self-effect of airflow are utilized to cause air resonance on the surface of the filter bag and apply certain physical contact, accumulation and blockage of dust on the surface of the filter bag are reduced, and the filtration efficiency is guaranteed. The multi-section corrugated sleeve is arranged on the inner side of the filter bag, the difference between the internal pressure and the external pressure on the two sides of the filter bag serves as a starting condition, open filtering after unfolding and closed back flushing after reshaping are achieved to realize self-dredging, back flushing ash removal is conducted through external power without human intervention or halting, filtering and dredging work is automatically conducted in the whole process, and the dust removal and filtering efficiency is greatly improved.

The invention discloses a chemical condenser which comprises a base, fixing holes, a cooling shell, a mounting base, a liquid inlet pipe, a liquid outlet pipe, a water inlet pipe, a water outlet pipe and a connecting assembly. The fixing holes used for fixed mounting are formed in the two sides of the surface of the base, the cooling shell is mounted on one side of the upper end of the base, and the cooling shell is in a U shape; the water inlet pipe and the water outlet pipe are arranged at the two ends of one side of the cooling shell correspondingly, penetrating holes are formed in the two ends of the cooling shell correspondingly, and a flow guide assembly is arranged in the cooling shell, so that the flowing speed is conveniently controlled and adjusted; by rotating a rotating sleeve, the rotating sleeve drives a connecting ring to rotate, the connecting ring drives a mounting screw sleeve to rotate through a meshing tooted bar and a meshing gear; and the mounting plate moves along the surface of the mounting bolt along with rotation of the mounting screw sleeve, so that the mounting plate moves towards the interior of the mounting base, and quick mounting of the mounting plate and the heat exchange assembly is facilitated.

The invention discloses a pipeline connecting structure for a water conservancy project. The pipeline connecting structure comprises a bottom box and a pipeline, fixed frames are fixedly installed at the left end and the right end of the top of the bottom box, a cross beam is fixedly installed between the tops of the two fixed frames, first bearing seats are fixedly installed at the ends, close to each other, of the upper portions of the two fixed frames, a rotating rod is rotatably connected between the two first bearing seats, the outer surface of the rotating rod is fixedly connected with two driving gears in a sleeved manner, a driving motor is fixedly installed at the upper end of the right end of the right fixed frame, and the output end of the driving motor penetrates through the right fixed frame and is fixedly connected with the right end of the rotating rod. A sliding rail is fixedly installed on the inner bottom wall of the bottom box, second bearing seats are fixedly installed on the left inner wall and the right inner wall of the bottom box, a lead screw is rotationally connected between the two second bearing seats, a lead screw nut is movably connected to the outer surface of the lead screw, a sliding block is fixedly installed at the bottom of the lead screw nut, and the sliding block is slidably connected with the sliding rail. The pipeline connecting structure is compact in structure and capable of rapidly completing connection between pipelines.

The invention relates to storage equipment used in meat products and having a defrosting function. The storage equipment comprises a main body, a door body and an operation plate and further comprisesa defrosting mechanism and a fixing mechanism. The defrosting mechanism comprises a connecting box, a lifting assembly, a fixing box and two water spraying assemblies. The lifting assembly comprisesa telescopic frame, a drive unit, two connecting units and two hinge blocks. The fixing mechanism comprises a support, a connecting rod, a fixing block and a plurality of first springs. According to the storage equipment used in meat products and having the defrosting function, by means of the defrosting mechanism, frost on the inner wall of the main body can be scraped off, manual clearing is notneeded, defrosting convenience is improved, by means of the fixing mechanism, the position of the door body is limited, and the situation that due to aging of the equipment, the door body gets loose,and airtightness of the equipment is influenced is avoided.

A continuous feeding device for papermaking waste residue belongs to the technical field of feeding devices for papermaking waste residue and comprises a feeding barrel, a feeding cylinder, a pressing bin and a feeding bin. The feeding cylinder is movably sleeved in the feeding barrel, the pressing bin is disposed above the feeding barrel and communicated with the feeding barrel, the feeding barrel is perpendicularly connected with the pressing bin, an arc-shaped smooth transitional structure is disposed at a joint of the feeding barrel and the pressing bin, a turning plate used for pressing materials is fittingly disposed in the pressing bin, the feeding cylinder is fixedly connected with a piston, the piston is fixedly connected with a piston rod, and a cooling jacket is fittingly arranged on the outside of the feeding barrel. The cooling jacket is added to the outside of the feeding barrel, the temperature of the materials is reduced, and a sealing function is realized. In addition, a rod sleeve, the piston rod, the piston and the feeding cylinder form a pushing device, and feeding continuity and stability of a system are guaranteed. Furthermore, the smooth transitional structure is arranged at the joint, and accordingly the continuous feeding device for papermaking waste residue can continuously, stably and safely feed the papermaking waste residue required by cracking of a high-temperature sealing cracking kettle.

The invention discloses a novel waterproof lamp and a method for manufacturing the same. The novel waterproof lamp comprises a lamp cap and a lamp shade which is formed by compression, wherein transparent glass which peripherally has a sealing ring is arranged at the front end of the lamp shade; and the transparent glass is fixed by the front end of the lamp shade in an edge-pressing mode. The novel waterproof lamp is characterized in that: the rear end of the lamp shade is in a sleeve shape; a lamp cap fixing seat is sleeved at the periphery of the sleeve; a flange which is bent outwards is arranged at the rear end part of the sleeve and used for fastening the lamp cap fixing seat and preventing the lamp cap fixing seat from being dropped; a movable fastener is arranged between the lamp cap fixing seat and the lamp cap; and a sealing piece is arranged between the front end of the lamp cap and a bending part at the rear end of the sleeve. The lamp does not have any screw connecting piece, and all parts are in fastening fit with one another, so the lamp is relatively higher in waterproof capacity, simple in structure and low in cost and has quite wide practical significance and market value.

The invention provides a bearing box of a slime pump. By the adoption of the bearing box of the slime pump, the problem that a sealing device of a bearing box of an existing 3PN slime pump is poor in sealing effect is solved. The bearing box of the slime pump comprises a cylindrical left shell and a cylindrical right shell. A first sealing structure which makes the right shell be connected with a main shaft in a sealed mode is arranged in the right shell. An annular groove is formed in the end face, close to the left shell, of the right shell. The inner end of the left shell is cylindrical and is connected into the annular groove in an inserted mode. A second sealing structure which makes the left shell and the right shell be connected in a sealed mode is arranged between the left shell and the right shell. The outer end of the left shell stretches out of the annular groove, and an annular shoulder is arranged on the outer side wall of the outer end of the left shell. The annular shoulder is fixedly connected with the right shell through a plurality of screws. A bearing is fixed in the left shell. The bearing, the left shell and the right shell share the same center line. The bearing box of the slime pump has the advantages of being good in sealing effect and stable in work.

The invention relates to a storage device with a defrosting function for meat products, which includes a main body, a door body and an operating panel, and also includes a defrosting mechanism and a fixing mechanism. The defrosting mechanism includes a connection box, a lifting assembly, and a fixing box and two water spray assemblies, the lifting assembly includes a telescopic frame, a drive unit, two connecting units and two hinged blocks, the fixed mechanism includes a bracket, a connecting rod, a fixed block and several first springs, which are used for meat The storage device with defrosting function of the finished product can scrape off the frost on the inner wall of the main body through the defrosting mechanism, without manual cleaning, which improves the convenience of defrosting. Through the fixing mechanism, the position of the door body is limited to avoid equipment aging The door body is loose, which affects the sealing performance of the equipment.

The invention discloses a sealing ring for a polyferric sulfate reaction kettle and a working method. The sealing ring comprises an upper base, wherein a first through hole is formed in the upper endof the upper base, an upper mounting plate is fixedly connected to the bottom end of the upper base, a lower base is arranged below the upper base, a second through hole is formed in the bottom end ofthe lower base, a lower mounting plate is fixedly connected to the upper end of the lower base, a sealing ring is movably mounted between the upper mounting plate and the lower mounting plate, and four sets of mounting holes are formed in the upper mounting plate, the lower mounting plate and the sealing ring. The sealing ring for the polyferric sulfate reaction kettle can avoid the problems thata bearing is lack of lubricating oil and a sealing ring is corroded due to long-term use, the bearing is difficult to rotate and the sealing performance of the sealing ring for the polyferric sulfatereaction kettle is influenced, can guarantee the sealing effect of the sealing ring, and is beneficial to long-term use, the sealing performance of the sealing ring for the polymeric ferric sulfate reaction kettle is improved, and the sealing effect of the sealing ring is guaranteed.

The invention relates to an improved cut-off valve, comprising a valve body, the valve body is provided with a transition cavity, and the two sides of the transition cavity are respectively provided with an inlet channel and an outlet channel, and the transition cavity, the inlet channel and the outlet channel are connected wherein, the bottom end of the transition cavity is provided with a drainage channel, the drainage channel is a cylindrical structure, the drainage channel is parallel to the outlet channel, and is arranged opposite to the outlet channel, and a fixed plug is arranged in the drainage channel , simple structure, can effectively filter out the impurities in the fluid flowing through the stop valve, safe and reliable, and at the same time increase the service life and save costs.

The invention relates to a high-temperature and high-pressure true triaxial direct shear fracture-seepage coupling test device. Two first indenters and two pressure components are arranged above and below the rock sample in a manner symmetrical to the center of the rock sample. The two second indenters are arranged on the left and right sides of the rock sample in a symmetrical manner with respect to the center of the rock sample. The first indenter includes a first indenter main body provided with a groove. A part of the pressure component is accommodated in the groove. The pressure component includes a rubber bladder and a backing plate, and the rubber bladder applies pressure to the rock sample through the backing plate. The seepage medium in the first seepage network groove provided on the main body of the first indenter and the second seepage network groove provided on the backing plate applies osmotic pressure to the rock sample. The triaxial testing machine applies lateral confining pressure, axial pressure and high temperature to the rock sample. The beneficial effect is that the test device is combined with a triaxial testing machine, can carry out a true triaxial direct shear fracture seepage test on a rock sample under high temperature and high pressure conditions, and has high practicability and reliability.

The invention discloses an efficient extrusion type automatic sealing gate valve. The efficient extrusion type automatic sealing gate valve comprises a gate valve body, a valve rod and a positioning block, the valve rod is arranged on the inner side of the gate valve body, the inner wall of a side window is attached to the edge side of a filter cartridge, moreover, the filter cartridge is arrangedat the bottom of the inner side of the gate valve body, a bottom plate is fixed at the bottom end of a valve plate, moreover, the bottom end of the bottom plate is attached to the upper end surface of a contact plate, moreover, the contact plate is fixed in the gate valve body, the positioning block is fixed on the upper end surface of the contact plate, and the inner side of the positioning block is attached to the edge side of the bottom plate. According to the efficient extrusion type automatic sealing gate valve, a novel structural design is adopted so that the efficient extrusion type automatic sealing gate valve can perform extrusion self-locking after the valve rod rotates to control the gate plate for closing, the phenomenon that due to the fact that the valve rod and the gate plate are loosened, the sealing performance is affected is avoided, moreover, a extrusion positioning structure is designed, so that the stability of the gate plate during closing is further ensured, meanwhile, a detachable filtering structure is designed, and the filter structure can also cooperate with the gate plate for positioning and sealing, so that the overall sealing performance of the efficient extrusion type automatic sealing gate valve is ensured.

The invention relates to a high-temperature and high-pressure conventional three-axis direct shear fracture-seepage coupling test device. Two shear pressure heads and two pressure components are arranged above and below the rock sample in a manner symmetrical to the center of the rock sample. The shear ram includes first and second shear ram bodies. Pressure components include rubber bladders and backing plates. A portion of the pressure assembly is within the space formed by the height difference between the first and second shear rams. The rubber bladder applies pressure to the rock sample through the backing plate. The seepage medium in the first seepage network groove provided on the main body of the second shear pressure head and the second seepage network groove provided on the backing plate applies osmotic pressure to the rock sample. The triaxial testing machine applies lateral confining pressure, axial pressure and high temperature to the rock sample. The beneficial effect is that the test device can carry out conventional triaxial direct shear fracture seepage tests under high temperature and high pressure conditions. The simple structure, the optimized sealing design, the connection mode of the piston part and the rubber bladder, and the design of the liquid injection method greatly improve the practicability and reliability of the present invention.