28results about How to "Increase tightness" patented technology

The invention belongs to the technical field of ceramic preparation, and particularly relates to a method for preparing a high-performance ceramic rod by isostatic pressing, which comprises the following steps of: performing isostatic pressing treatment on polyvinyl alcohol serving as an adhesive, aluminum isopropoxide serving as a filling agent and raw materials to form a primary green body; and performing surface spraying on the basis of permeation, hydrolysis and sintering of the primary green body to obtain a to-be-sintered green body, and performing sintering and surface polishing to obtain the ceramic rod. The defect that a green body is damaged due to existing isostatic pressing treatment is overcome, the hard damage of an isostatic pressing mold is effectively reduced by combining the adhesiveness of polyvinyl alcohol and a flexible silica gel material, meanwhile, the performance of a secondary isostatic pressing green body is improved by means of sintering curing pretreatment, and the service life of the secondary isostatic pressing mold is prolonged. Therefore, the overall performance and the yield of the ceramic rod are ensured.

The utility model discloses a pair of radio frequency endoscope electrode tissue scissors, which comprises two connecting parts and blades arranged at the tail ends of the two connecting parts, the two blades are rotationally arranged through a scissors shaft, a mounting opening is formed in the upper surface of each blade and located at the position of a cutting edge in a penetrating manner, and extension openings are formed in the two ends of the inner surface of each mounting opening. The movable shearing mechanism comprises a movable shearing knife located between the two extending openings, a round corner is formed in the side, away from the inclined face, of the outer surface of the movable shearing knife, and an adapter shaft is fixedly arranged in the movable shearing knife and located at the circle center position of the round corner. And a supporting and positioning mechanism. The rotatable movable shearing mechanisms are arranged at the cutting edges of the blades, the cutting edges of the two movable shearing knives can be in close fit with the lower surfaces in the mode that the magnetic sheets attract one another, and therefore during frequent shearing of the two movable shearing knives, the cutting edges of the two movable shearing knives are not prone to generating a gap due to loosening of the shearing shaft part, and the shearing efficiency is improved. And the friction force at the joint is increased.

The utility model relates to the technical field of textile manufacturing, and discloses an automatic yarn arranging device of a warp drawing vehicle, which comprises a mounting rack, two sides of the surface of the mounting rack are fixedly connected with two limiting blocks, one end of one of the limiting blocks is fixedly connected with an adjusting assembly, the surface of the adjusting assembly is in threaded connection with a moving part, and the moving part is in threaded connection with the limiting block. And one side of the moving part is fixedly connected with a stabilizing block, the top surface of the stabilizing block is fixedly connected with a replacement assembly, and a wiring board is clamped in the replacement assembly. According to the automatic winding displacement device of the warp drawing vehicle, through the arrangement of the replacement assembly, the magnetic piece A and the magnetic piece B, when a winding displacement plate needs to be replaced according to different textile processes in the use process, three adjusting bolts are unscrewed respectively, the winding displacement plate is pulled upwards on the side, away from the bottom face of the winding displacement plate, of an abutting-pressing piece, and the magnetic piece B is separated from the magnetic piece A; therefore, the wiring board can be quickly replaced, and the replacement convenience can be improved.

The utility model relates to a valve body sealing structure capable of reinforcing sealing by means of medium pressure. The valve body sealing structure comprises a valve body, a valve rod, a packing pressing plate, a packing gland, a valve body gland, packing, a packing sleeve and an O-shaped ring. A connecting channel is arranged in the valve body, the upper end of the connecting channel is communicated with the lower end face of the filler sleeve, and the lower end of the connecting channel is communicated with the valve cavity. In the working process, medium pressure can act on the lower end face of the filler sleeve through the connecting channel so as to further compress the filler. The packing can be further compressed, so that the compactness of the packing is improved, the sealing performance of the valve is enhanced, and meanwhile, the packing structure has the characteristics of simple structure, economy and practicability.

The invention provides mechanical equipment for welding of a building pile foundation reinforcement cage, and relates to the field of welding equipment.The mechanical equipment for welding of the building pile foundation reinforcement cage fixes a plurality of steel bars and a plurality of stirrups into the reinforcement cage and comprises a workbench, fixing plates are arranged at the front end and the rear end of the workbench, the fixing plates are round, and the fixing plates are arranged on the workbench. The opposite sides of the two fixing plates are connected with ferrules around the circle center at equal angles, and the steel bars are located between the two fixing plates. The mechanical equipment for building pile foundation reinforcement cage welding is composed of a workbench and a fixing plate, and reinforcement and stirrups form the reinforcement cage. And a positioning plate is in sliding fit with the left side of the workbench, and an inserting plate is inserted into the positioning plate, so that the effect of equidistantly arranging a plurality of stirrups is achieved, and the stirrups are fixed to a certain degree in the electric welding process. The right side of the workbench is in sliding fit with a base, the base is provided with two electric welding modules, and the electric welding modules are connected with electric welding heads and red copper plates. And electric welding is expanded in a small range. And welding spot cracking caused by fine welding spots is avoided.

The utility model relates to the technical field of simulation lawns, and discloses a simulation lawn capable of being quickly spliced, which comprises a grass yarn layer, the lower surface of the grass yarn layer is fixedly connected with a filling layer, the lower surface of the filling layer is fixedly connected with a backing layer, and the lower surface of the backing layer is fixedly connected with a bottom layer. A plurality of clamping blocks arranged at equal intervals are fixedly connected to the left side and the front side of the bottom layer, a plurality of clamping grooves arranged at equal intervals are formed in the right side and the rear side of the bottom layer, a plurality of mounting grooves are formed in the bottom layer, fixing seats are fixedly connected into the mounting grooves, and fixing mechanisms are detachably connected into the fixing seats. According to the simulation lawn, the compactness between the two lawns can be improved, the situation that the two lawns are staggered can be avoided, when the simulation lawn is laid on soil, a fixing mechanism can be installed and inserted into the soil, so that the simulation lawn is not prone to being separated from the ground, the wind resistance and the pressure resistance of the lawn are improved, and the simulation lawn is convenient to use. And the displacement or damage of the lawn caused by factors such as wind power or manual treading is reduced.

The utility model relates to the technical field of vehicle-mounted backlight source rubber frames. The assembly type vehicle-mounted backlight source rubber frame comprises a shell structure, the shell structure comprises a backlight shell, a plurality of groups of first inserting grooves, a plurality of groups of second inserting grooves and a plurality of groups of fixing blocks. According to the utility model, when the lower ends of the plurality of groups of first elastic buckles are clamped in the fixing grooves formed in the plurality of groups of first slots, the plurality of groups of first elastic buckles can be fixed in the plurality of groups of first slots, and the plurality of groups of second elastic buckles are respectively clamped in the plurality of groups of second slots; when the multiple sets of second elastic buckles are inserted into the multiple sets of second inserting grooves, the multiple sets of fixing blocks can be inserted into the multiple sets of clamping grooves, at the moment, the multiple sets of second elastic buckles can be fixed into the multiple sets of second inserting grooves, and through the design, the efficiency of installation between the shell structure and the rubber frame structure can be effectively improved.

The utility model discloses adjustable ground wire hook device relates to power transmission line safety appliance technical field, specifically includes double tongue tension type metal hook, male head, female head, insulating operating stick and ground copper wire, and the double tongue tension type metal hook is with male head through first screw fastening connection and constitutes first detachable assembly, and female head is with insulating operating stick through second screw fastening connection and constitutes second detachable assembly, and first detachable assembly is with second detachable assembly through male head and female head realizes detachable connection. The application can set up ground wire in different angles for various types of tower in power transmission line through adding adjustable device between ground wire hook and insulating operating stick, improves the close degree of ground wire setting, the qualified proportion, simultaneously, the function of its adjustment angle can reduce the displacement frequency of high altitude operation personnel on the transmission tower, reduces the operation risk, and protects the safety of operation personnel.

The application relates to the technical field of automobile luggage rack connecting assemblies, in particular to a fixed connecting assembly capable of improving connecting strength and a use method thereof, which comprises a roof original luggage rack fixing rod and connecting bolts, the upper end of the roof original luggage rack fixing rod is connected with a connecting assembly, and the upper end of the connecting assembly is fixedly connected with a roof luggage rack through the connecting bolts; the connecting assembly comprises an assembly shell, the upper end of the assembly shell is fixedly connected with a connecting block, the inner sides of the assembly shell are fixedly connected with limiting columns at both ends, the outer sides of the limiting columns are provided with second springs, and the outer sides of the limiting columns are slidably connected with clamping plates; in the application, the sealing buffer mechanism can further improve the connecting tightness between the connecting assembly and the roof original luggage rack fixing rod, thereby improving the connecting strength of the connecting position; meanwhile, in the installation process, the adsorption between the sucker and the roof original luggage rack fixing rod can prevent the luggage rack from being displaced under the condition of frequent emergency braking of the automobile.

The utility model provides a battery cell, a battery cell module and a battery pack, and relates to the field of battery cell structures. A plurality of limiting parts are sequentially formed on the battery cell along the first direction, and the cross section of each limiting part is elliptical, so that the cross section area of the pole is effectively increased (compared with an existing cylindrical pole), the overcurrent capacity of the pole is effectively improved, and the use requirement of the battery cell can be met; in addition, the areas of the cross sections of the plurality of limiting parts are reduced one by one along the first direction, so that a step structure is formed on the post terminal; furthermore, the pole of the battery cell is fixed by being welded with the welding block, the rest components in the cover plate assembly can be fixed between the pole and the welding block by being matched with the structure corresponding to the step structure of the pole, and furthermore, the pole lug is welded with the bottom end surface of the welding block.

The utility model discloses a polyisocyanurate block foam production mold which comprises a base, two side plates in mirror symmetry are fixedly connected to the top face of the base, two first arc-shaped plates in mirror symmetry are jointly and movably connected between the two side plates, a second arc-shaped plate is arranged above the two first arc-shaped plates, the second arc-shaped plate is movably connected between the two side plates, and the first arc-shaped plate and the second arc-shaped plate are in mirror symmetry. A supporting beam is fixed to the top faces of the two side plates together, a supporting frame is connected to the bottom face of the supporting beam in a lifting mode, an air cylinder is vertically fixed to the top face of the supporting beam, an output shaft of the air cylinder movably penetrates through the supporting beam and is vertically fixed to the top face of the supporting frame, and a pressing block is fixedly connected to the top wall of the supporting frame and located over the second arc-shaped plate. A guide piece is arranged in the supporting frame, and one end of each first arc-shaped plate and one end of each second arc-shaped plate are each fixedly provided with a fan-shaped plate. According to the utility model, the opening and closing of the mold can be completed only through one cylinder, so that the power consumption during the opening and closing of the mold is saved.

The application relates to the technical field of metal layered composite material manufacturing, in particular to a metal layered composite plate strip high-speed continuous casting and rolling device, which comprises a base, the upper surface of the base is sequentially provided with a casting part, a shearing part, a cooling part and a rolling part from right to left, a processing mechanism for assisting the forming of the composite plate strip is arranged between the casting part and the shearing part on the upper surface of the base, a conveying roll channel for conveying the composite plate strip is arranged below the processing mechanism, the shearing part and the cooling part, the processing mechanism comprises two front-rear symmetrical door-shaped frames fixedly connected to the upper surface of the base, the composite plate strip is timely side-pressed on both side edges after being continuously cast to keep the edges of the composite plate strip neat and avoid the occurrence of the edge warping of the composite plate strip; the compactness of the composite plate strip can be improved by rolling the composite plate strip formed by continuous casting in the up-down direction.

This utility model discloses a side-insertion pin header connector, relating to the field of pin header connector technology. It includes a body with a protective mechanism and symmetrically arranged reinforcing mechanisms on its left and right sides. The protective mechanism includes a hollow rod, with a telescopic rod fixedly connected to the inner wall of the hollow rod. When the hollow rod is inserted from the tip of the connecting pin, it is positioned between two sets of rubber pads. Pulling the hollow rod downwards compresses a first spring, simultaneously pushing the telescopic rod, causing it to shorten. When the hollow rod is at the tail end of the connecting pin and is stationary, the two ends of the first spring push the hollow rod and the arc-shaped plate outwards, while the telescopic rod supports the arc-shaped plate, improving the tightness of the fit between the rubber pads and the connecting pin, thereby increasing the support strength for the connecting pin and preventing it from tilting during use, thus extending the service life of the side-insertion pin header connector.

The utility model discloses a back plate installation structure and a shower, which belong to the technical field of shower installation, the back plate installation structure comprises a base plate, a rear support assembly, a front support assembly and a face shell, the rear support assembly is arranged on the base plate, the front support assembly is arranged on the face shell, and the front support assembly is arranged on the face shell. The rear support assembly and the front support assembly are fixed after being in butt joint, the front support assembly comprises a supporting piece, an adjusting pad and an elastic piece, one end of the supporting piece is connected with the rear support assembly, the other end of the supporting piece abuts against the back face of the face shell, the adjusting pad is arranged between the supporting piece and the face shell, and the elastic piece is arranged between the adjusting pad and the face shell. A through hole is formed in the supporting piece, the elastic piece is arranged in the through hole, the supporting piece guides the face shell and the base plate to be accurately aligned, the elastic piece is used for eliminating the influence of the supporting piece on the position of the face shell, and the effect of rapidly and accurately installing the shower is achieved.

The utility model provides a cable bridge convenient to assemble, which belongs to the technical field of bridges and comprises bridges, splice plates are mounted between the adjacent bridges, fixing plates are arranged on the splice plates, locking mechanisms are arranged on the fixing plates, and the splice plates and the bridges are fixed through clamping pieces. According to the utility model, the problems that when a plurality of sections of bridges are spliced in use, more bolts and nuts are needed for fixation, and the assembly is very tedious, time-consuming and labor-consuming are solved.

This utility model discloses an insulating window heating device, which relates to the field of insulating window heating technology. It includes: a heating element disposed on an insulating window of an etching device for heating the insulating window; and opposing fixing components, both movably disposed on the etching device. The opposing fixing components are positioned close to each other, connecting the heating element to the etching device; or the opposing fixing components are positioned far apart, separating the heating element from the etching device. The advantages of this utility model are: the fixing components improve the efficiency of installing or removing the heating element, and also improve the tightness of the fit between the heating element and the insulating window, thereby effectively improving the uniformity of heating the insulating window and the heat conduction effect during heating.

The application provides a construction road structure, which comprises a bearing part and a constraint part. The bearing part comprises a bearing structure and a load dispersion structure which are arranged in a stacking manner along a direction perpendicular to a soft soil foundation. The load dispersion structure comprises a first rod group and a second rod group which are arranged in a stacking manner. The first rod group comprises a plurality of first rod members which are arranged at intervals along a first horizontal direction and extend along a second horizontal direction. The second rod group comprises a plurality of second rod members which are arranged at intervals along the second horizontal direction and are arranged perpendicularly to the first rod members and are connected in a sliding mode. The load dispersion structure further comprises a fiber interlacing body which comprises a plurality of connected fiber grid units. Adjacent two fiber grid units are connected in a movable mode. The constraint part comprises at least two lateral constraint bodies which are arranged on opposite sides of the bearing part along a direction parallel to the soft soil foundation and are attached to the bearing part. The construction road structure can improve the construction efficiency of the construction road.

The utility model relates to the technical field of sealing rubber strips, in particular to a self-adhesive sealing rubber strip. According to the technical scheme, the sealing rubber strip comprises a sealing rubber strip body and a self-adhesive adhesive layer, the self-adhesive adhesive layer is arranged on the upper surface of the sealing rubber strip body, a first isolating membrane layer is arranged on the upper surface of the self-adhesive adhesive layer, a dust sticking adhesive layer is arranged on the upper surface of the first isolating membrane layer, and a second isolating membrane layer is arranged on the upper surface of the dust sticking adhesive layer. A water absorbing layer is arranged on the upper surface of the second isolating membrane layer. Before the sealing rubber strip is adhered through the adhesive layer, water drops and dust on the surface of an adhered object can be conveniently removed, so that the tightness between the self-adhesive layer and the adhered object is improved, and the adhesion firmness and the sealing performance of the sealing rubber strip are improved.

The utility model belongs to the technical field of medical instruments, in particular to a busbar special for an ambulance, which comprises a busbar main body, the busbar main body comprises a pressure reducing valve, a safety valve, a high pressure sensor, a low pressure sensor, an electromagnetic valve, a PLC (programmable logic controller), a human-computer interface, a pipeline and a use gas terminal, and a connector is arranged inside the busbar main body; after the busbar and the ambulance are installed, a rubber ring is additionally arranged between the busbar and the ambulance, meanwhile, a first spring pushes two sets of damping pads outwards, the friction force between the first damping pad and the inner wall of the ambulance can be increased, a pressing plate is attached to an installation plate and the rubber ring on the other side, and under cooperation of a first bolt, the rubber ring, the first damping pad and the first spring, the first damping pad and the first spring are fixed. According to the bus bar, the connecting tightness of the bus bar and the ambulance can be improved, vibration generated in the ambulance running process can be buffered, and then the using stability of the bus bar can be improved in the ambulance running process.

The invention provides a mass damping enhanced guiding type flexible protective net system which comprises an annular protective net, an upper supporting rope, a plurality of transverse supporting ropes, longitudinal supporting ropes and anchoring assemblies, the upper supporting rope is connected with the multiple anchoring assemblies, and the multiple longitudinal supporting ropes are connected with the upper supporting rope and the multiple anchoring assemblies correspondingly. The transverse supporting ropes are fixedly installed on the slope and the longitudinal supporting ropes, the annular protective net is fixedly installed on the inner sides of the longitudinal supporting ropes, the upper portion of the annular protective net is an intercepting section, and the lower portion of the annular protective net is a guiding section. A part of the longitudinal supporting rope of the guiding section is provided with a hanging node, and a flexible mass damper is hung on the hanging node. Through the inertia effect and the gravity pre-tensioning effect of the mass damper, the energy dissipation capacity and the pressing effect on falling rocks are remarkably improved, and mass damping vibration attenuation is achieved; the flexible mass damper has high toughness, is maintenance-free and does not have the secondary disaster risk that a rigid block falls off. The flexible mass damper perfectly meets the requirement for toughness prevention and control of current geological disasters.

The invention belongs to the technical field of Roman cloth, and particularly relates to superfine soft Roman cloth and a preparation process thereof.The superfine soft Roman cloth comprises a fabric body, the fabric body is prepared from, by weight, 52% of 90S high-count cotton, 42% of 40D / 24F chinlon and 6% of 20D spandex through a Roman double-faced cloth weave structure and a high-count and high-density weaving process, and the superfine soft Roman cloth has the advantages that the superfine soft Roman cloth is high in softness, good in softness and high in softness, good in softness and high in softness, good in softness and high in softness, good in softness and good in softness. The setting machine is arranged, an electric push rod drives a lifting frame to vertically lift, the two ends of the lifting frame are in rolling fit with guide rails through rollers, the stability and smoothness in the lifting process of a pressing roller are guaranteed, the blocking phenomenon is avoided, clamping mechanisms are arranged at the two ends of a setting mechanism, and synchronous clamping and tension control can be conducted on the edges of the two sides of a fabric body; the uniform stress of the fabric in the full width direction is ensured.

This utility model relates to the field of railway power supply line technology and discloses a protection device for railway track power supply lines. It includes a protective shell, a protective mechanism installed on the outer side of the protective shell for protecting the line, and a connecting mechanism installed on the outer side of the protective shell for fixing the equipment. The protective mechanism includes a first outer shell, which is installed on the right side of the outer side of the protective shell. Connecting rods are fixedly connected to the front and rear sides of the top left side of the first outer shell. A second outer shell is installed on the left side of the outer side of the protective shell, and sliding grooves are formed on the front and rear sides of the top right side of the second outer shell. In this utility model, after aligning the connecting rods and sliding grooves, the second outer shell is moved to connect the first and second outer shells. The gap at the connection point is completely covered by a third outer shell, preventing water ingress and improving the overall sealing performance of the device. The protective pad provides UV protection, further enhancing the overall sealing of the equipment.

The utility model relates to the technical field of display devices, and discloses a conveniently spliced layout display device for urban and rural planning management, which comprises a support chassis and a combined mechanism, and the combined mechanism for rapid splicing is arranged in the middle of the upper part of the support chassis. The combination mechanism comprises a placement frame, a sliding groove, a display board, a magnetic attraction piece, a bayonet socket, a connecting plug, a bearing seat, a spring chuck, a clamping groove and a combination frame, the sliding groove is formed in the lower surface of the inner side of the placement frame, the display board is installed above the sliding groove, and through cooperation of all parts of the combination mechanism, rapid splicing and combination can be achieved; the display device has the advantages that the display device can be quickly spliced and combined, the fastening and firmness degree after quick splicing and combination can be improved, when more content needs to be displayed, the displayed content can be improved through quick up-down splicing, diversified display effects are achieved, meanwhile, the display angle and orientation can be improved during combined display, and the use effect of the display device is better.

The utility model relates to the technical field of constant velocity universal joints, and discloses a six-fairway fixed type constant velocity universal joint which comprises a driving shaft, a first hoop, a second hoop and a spline plug, fixing mechanisms are arranged at the two ends of the outer wall of the driving shaft, and a rotating mechanism is arranged at one end of each fixing mechanism. According to the device, a plurality of first inserting pieces on a first fixing ring at one end of the dust cover are inserted into second inserting grooves formed in a second fastening groove in the outer wall of a ball cage in a sliding mode, and then second inserting pieces on a second fixing ring at the other end of the dust cover are inserted into first inserting grooves formed in a first fastening groove in the outer wall of a driving shaft in a sliding mode; and finally, the first clamping hoop is arranged on the outer wall of the second fastening groove in a sleeving mode and fastened, the second clamping hoop is arranged on the outer wall of the first fastening groove in a sleeving mode and fastened, and therefore the two ends of the dust cover are fastened, the fastening degree of the dust cover is enhanced, and the practicability of the device is improved.

The invention discloses a device for reinforcing thread fastening of a circuit board press-fit anti-sliding block and a using method thereof, and particularly relates to the field of circuit board press-fit anti-sliding blocks, a fixing mechanism comprises a lower plate, a first connecting groove, a second connecting groove, a first connecting rod, a second connecting rod, a first connecting rod, a second connecting rod, a second connecting rod and a third connecting rod, a fixing sleeve is arranged in the second connecting groove and welded to the surface of the bearing plate, and threads are arranged on the inner wall of the fixing sleeve. The flat cup screw is arranged in the fixed sleeve, and the surface of the flat cup screw is in threaded connection with threads on the inner wall of the fixed sleeve; the upper plate is arranged above the lower plate, and the bottom of the upper plate is provided with a plurality of groups of counterbore positions corresponding to the connecting grooves I; the connecting structure is arranged between the upper plate and the lower plate, the threaded groove is formed in the inner wall of the fixing sleeve and is in threaded connection with the surface of the bolt, the fastening effect of threads is enhanced, and the problem that the threads are damaged or loosened due to thermal expansion and cold contraction of a steel plate is effectively solved.

The utility model belongs to holographic screen assembly field, concretely is a kind of holographic screen assembly glue sealing curing device, including base, the top of base is fixedly connected with support, the inside of support is slidably connected with glue-dropping device, the side of glue-dropping device is provided with purple light, the inside of base is equipped with first sliding slot, the side of base is fixedly connected with first motor, the output of first motor is fixedly connected with stud, stud is rotatably connected with first sliding slot, the surface of stud is threadedly connected with moving frame;Through stud drive moving frame to move, the position of two side clamps to screen reinforcement can be adjusted, through positive and negative toothed screw rod drive clamping plate to move to middle, so that clamping plate can be clamped to the screen of different sizes and limit, increase the applicable scope of screen on the top of base positioning, make screen more stable when glue-dropping.

This invention relates to the field of cable production equipment technology, specifically proposing a cable twisting mechanism suitable for multi-strand conductors. The mechanism includes a twisting machine body with two horizontally arranged twisting heads for twisting. A guide mechanism for guiding multiple conductors through the conductor insertion end of the twisting machine body is also installed. The guide mechanism includes a frame, two guide discs, a drive assembly, a guide frame, and a linkage assembly. This invention improves the forming quality of the twisting and bonding of the stranded wires, thereby improving the electrical and physical-mechanical properties of the subsequently stranded cable, increasing the DC resistance and signal transmission stability of the cable, enhancing bending resistance and overall strength, and extending the actual service life of the cable, thus ensuring the overall quality and reliability of cable production.