34results about How to "Realize self-locking effect" patented technology

The belt buckle comprises a connecting base and a buckle head, the buckle head is provided with an adjusting mechanism for adjusting the tightening state of a belt, and when the occlusal surface of a pressing roller of the adjusting mechanism directly faces a supporting piece, the distance between the occlusal surface of the pressing roller and a rotating shaft is gradually increased in the direction from the rotating shaft to the connecting base, so that after the belt is tightly pressed by the occlusal surface, the belt is tightened by the buckle head. When the tail end of the belt is pulled out of the buckle head, the compression roller can be driven to rotate towards the direction of extruding the belt, so that the extrusion force between the occlusal surface and the belt is increased, and the self-locking effect of the buckle head on the belt is realized.

The utility model discloses a translation unlocking type cable connector. The translation unlocking type cable connector comprises an installation base body; the lock catch piece is arranged on the mounting base body in a sliding mode through an elastic piece, a buckle structure is arranged on the lock catch piece, and the buckle structure is used for being externally connected with a cable connector; the packaging piece comprises a sealing plate and a loading shell, the sealing plate and the loading shell are integrally formed, the sealing plate is connected to the tail end of the mounting base body in a buckled mode, the loading shell packages the locking piece, an avoiding hole is formed in the loading shell, and a pressing part on the locking piece protrudes out of the avoiding hole. The locking fastener is connected through the elastic piece, so that the locking fastener can be driven by the elastic piece to have a reset function, that is, the locking fastener is driven by the elastic piece to realize a self-locking effect with the cable connector, and the packaging piece and the locking fastener are mounted in a matched manner, so that both the mounting base body and the locking fastener can be supported; and under the cooperation with the pressing part, the initial position of the locking piece can be limited.

The utility model discloses cloth scutching pretreatment equipment which comprises a supporting frame, a first feeding roller is rotationally arranged on the left side of the supporting frame, a plurality of rubber protruding blocks are fixedly arranged on the surface of the first feeding roller, and a first U-shaped support is fixedly arranged on the upper end face, close to the first feeding roller, of the supporting frame. An electric telescopic rod is fixedly arranged on the lower surface of the first U-shaped support, and a steam iron is fixedly arranged on the outer end face of a piston rod of the electric telescopic rod. The cloth collecting device has the advantages that lifting adjustment is conducted on a roller shaft for feeding cloth through a simple structure, and the cloth entering the collecting frame is treated; and the cloth can fall into the collecting frame in order, so that workers can collect the cloth conveniently.

The utility model discloses an ultrathin liquid tank filter relates to filter technical field, this ultrathin liquid tank filter, including first section bar, and first section bar is provided with a plurality, the corner of first section bar is provided with second section bar, the lower extreme of second section bar is provided with third section bar with the connecting place of first section bar, and second section bar and third section bar all are provided with a plurality, first section bar includes first vertical board, the top of first vertical board is provided with first roof, first vertical board's bottom one side surface is provided with first support bottom plate, and the corner of one side of first roof one end forms the connecting gap between first vertical board, and the scheme has solved the total thickness of existing liquid tank filter generally above 40mm, can not realize installation in the narrow equipment environment, and the installation structure is too many due to spare part, leads to the thickness of liquid tank filter to be difficult to reduce, and the problem of complicated installation.

This invention discloses a construction safety protection device with a supporting structure, relating to the field of construction technology. It includes a lower steel pipe, with an upper steel pipe slidably mounted on top of the lower steel pipe. A ring box is slidably connected to the lower steel pipe. A vertical block is fixedly connected to the outer wall of the lower steel pipe. A sliding groove is provided on the inner wall of the ring box, engaging with the vertical block. An inner air groove is formed between the vertical block and the wall of the lower steel pipe. An outer air groove is formed on the inner wall of the sliding groove, engaging with the inner air groove. Both ends of the ring box are rotatably connected to a lower support box via side boxes, and the lower support box communicates with the ring box via the side boxes. An upper support box is rotatably connected to the end of the lower support box furthest from the side boxes. This construction safety protection device with a supporting structure provides three layers of protection, ensuring the stability of the support and improving the safety performance of the device.

This utility model provides a cable fixing structure for the handover test of a photovoltaic power station transformer substation, belonging to the technical field of cable fixing structures. The cable fixing structure includes: a wedge-shaped metal ring assembly divided into at least three circumferential segments, each segment having a spiral groove on its outer surface; a high-friction flexible pad tightly fitted to the inner circumferential surface of each segment; and an integral elastic steel ring surrounding the outer side of the metal ring assembly, the inner circumferential surface of which has a protruding ridge that engages with the spiral groove. When the elastic steel ring rotates relative to the metal ring assembly, the protruding ridge slides along the spiral groove, driving each wedge-shaped metal ring segment to synchronously contract radially and synchronously generate axial displacement, thus forming a self-tensioning clamp. This solves the problem of loose cable joints and uneven stress during the handover test caused by the inability of traditional fixing structures to adaptively clamp according to changes in cable tension.

The utility model discloses a fixture convenient to adjust the material position, relates to the machine tool machining technical field, including the support frame, the inner wall of support frame is fixedly connected with equidistantly arranged limit rod, the inside of each limit block 2 is rotatingly connected with the outer surface of threaded rod 1, and the threaded rod 2 is rotatably connected with the threaded rod 3. By arranging the second limiting blocks, the first threaded rods, the first worm wheels, the first worms and other components, the first worms are rotated to be engaged with the first worm wheels, the first worm wheels are driven to rotate, the first worm wheels drive the first threaded rods to rotate, the first threaded rods and the second limiting blocks rotate, and the first worm wheels are driven to rotate. The first threaded rod is in threaded connection with the clamp to drive the clamp to slide on the outer surface of the first polished rod, after the first threaded rod moves to the needed position, rotation of the first worm is stopped, the self-locking effect of the first worm gear and the first worm is achieved, and the reverse movement effect of the clamp is achieved by reversing the first worm. And therefore, the effect of adjusting the transverse movement of the material by adjusting the transverse movement of the clamp is achieved.

The utility model relates to the technical field of machine tool tail frames, in particular to a machine tool tail frame with a locking mechanism, which comprises a sliding rail, a sliding seat is arranged at the top of the sliding rail in a sliding mode, a tail frame body is fixedly arranged at the top of the sliding seat, an ejector rod is arranged in the tail frame body through a threaded rod, and a rotating hand wheel is arranged on the side face of the tail frame body in a matched mode. A locking rod is fixedly connected to the side face of the tailstock body and mechanically connected with the ejector rod, an adjusting rod is fixedly arranged on the side face of the tailstock body, and a clamping plate is arranged at the bottom of the adjusting rod in a matched mode. The self-locking device has the beneficial effects that when the clamping plate and the sliding rail are locked in a friction mode, a main contact and an auxiliary contact in the self-locking structure are driven to make contact, a first electromagnet and a second electromagnet are powered on and magnetically attracted with a magnetic block and the sliding rail respectively, the self-locking effect is achieved, and the locking effect of the machine tool tailstock is further stabilized; and power-on control is conducted through a power-off button at the top of the adjusting rod, operation is convenient, the tailstock can be flexibly moved, and use is convenient.

The present invention relates to the field of driving mechanisms, and discloses a coupling drive device, a plug-type sliding door drive device and a plug-type sliding door including the device. In the coupling drive device, a set of coupling drive mechanisms are respectively installed at both ends of a base, the two sets of coupling drive mechanisms are fixedly connected by a sliding rod and rotatably connected by a pull rod, two sliding sleeves are sleeved on the sliding rod, and the two ends of the wire drawing are connected to the two sliding sleeves after passing through two wire drawing wheels respectively; a guide wheel rotatably connected to one of the sliding sleeves is limited in a guide groove on the base; a power source of the plug-type sliding door is fixed on the pull rod, and its driving end is fixedly connected to one of the sliding sleeves; the coupling drive mechanism reciprocates relative to the base under the drive of the power source. The coupling drive device is applied to the plug-type sliding door, and can disperse the force originally concentrated on the guide wheel to the guide wheel and the coupling drive mechanisms on both sides of the guide wheel, so that the plug-type sliding door is very stable when opened or closed, effectively avoiding the phenomenon that the guide wheel automatically disengages from the guide groove, and can greatly reduce the damage of the guide wheel, save power, and be green and environmentally friendly.

The utility model discloses an automatic wire arranging and self-locking device for copper wire unwinding, which comprises a positioning column inserted in a central hole of a flat wire coil wound with a copper wire, a spring telescopic rod is mounted on the side wall of the positioning column along the radial direction, and a vertical support roller in rolling connection with the inner wall of the central hole of the wire coil is mounted at the end part of the spring telescopic rod; a fixing rod is vertically fixed to the top of the positioning column, the surface of the fixing rod is rotationally connected with a rotating disc through a shaft sleeve, a supporting rod is horizontally fixed to the rotating disc, a limiting sleeve used for penetrating an unwinding copper wire on a wire coil is fixed to one end of the supporting rod, and a balance bolt is installed at the other end of the supporting rod. The positioning column is installed in the center hole of the wire coil, the rotatable rotating disc is arranged on the surface of the fixing rod on the positioning column, and an unwound copper wire is inserted and supported through the limiting sleeve which is arranged at the end of the supporting rod and provided with the smooth round corners at the upper end and the lower end, so that flaws caused by scraping of the unwound copper wire and the edge of the wire coil are avoided; and the automatic wire arrangement effect is realized.

The invention discloses a tunnel inspection robot safety charging switching device which comprises a robot body, a battery is arranged in the robot body, a combustible gas sensor is installed on the top of the robot body, a dual-mode charging interface is installed on the side wall of the robot body, and the dual-mode charging interface is in butt joint with a dual-mode charging plug. A control panel is arranged in the robot main body; the dual-mode charging interface is composed of a wireless charging receiver and a wired charging interface, and the wireless charging receiver and the wired charging interface are electrically connected with a battery in the robot body. According to the tunnel inspection robot, the dual-mode charging plug is arranged to be matched with the dual-mode charging interface, so that the tunnel inspection robot has a wired charging mode and a wireless charging mode, combustible gas in a tunnel is monitored in real time through the combustible gas sensor, and a plugging mechanism and a wireless charging switch are matched; and the robot can be automatically switched to wireless charging when the combustible gas exceeds the standard.

The utility model discloses a chemical plant safety valve pressure detection device, which belongs to the technical field of safety valve detection devices and comprises a detection box and a fixing mechanism, a telescopic cylinder is fixedly mounted at the top of the detection box, the output end of the telescopic cylinder is fixedly connected with a moving plate, and the bottom of the moving plate is fixedly connected with a limiting cover. A first sealing gasket is fixedly arranged at the top end of the inner side of the limiting cover, an air guide pipe penetrates through the surface of the first sealing gasket, a pressure gauge is installed at the top of the air guide pipe, placing grooves are formed in the bottom end of the inner side of the detection box at equal intervals, and second sealing gaskets are fixedly arranged at the bottom ends of the interiors of the placing grooves. According to the utility model, through the structural design of the rotating plate, the placing groove, the safety valve bodies and the fixing mechanism, a plurality of safety valve bodies can be conveniently fixed at the same time, and through the mutual cooperation of the worm gear and the worm, the self-locking effect can be realized, so that the safety valve can be effectively prevented from deviating during detection, and the detection accuracy is improved. And the safety valve detection accuracy is improved.

The utility model discloses a high-precision spot welding device for single-chip microcomputer production, and belongs to the field of single-chip microcomputer production, the high-precision spot welding device for single-chip microcomputer production comprises an operation table, a bearing frame and a spot welding machine, the operation table is provided with a driving box, one end of the driving box is fixedly provided with a placing table, the placing table is provided with a guide groove, and the bearing frame is fixedly connected with the spot welding machine. A guide groove is formed in the driving box, a guide block is slidably mounted in the guide groove, a clamping plate is fixedly mounted on the guide block, a transmission gear and a driving arm are arranged in the driving box, a connecting rod is rotatably mounted on the driving arm, and the connecting rod is rotatably connected with the guide block. According to the high-precision spot welding device for single-chip microcomputer production, by arranging the clamping plates and the connecting rods, the clamping requirements of single-chip microcomputers placed in different sizes and different directions can be met, the self-locking effect on the clamping plates is achieved by arranging the combination of the driving motor, the worm and the transmission gear, power transmission can be interrupted after the single-chip microcomputers are clamped by arranging the limiting springs, and therefore the single-chip microcomputer production efficiency is improved. And the safety of the device is improved.

The utility model discloses a cooking equipment self-locking type door closing safety mechanism, and relates to the field of oven doors, the cooking equipment self-locking type door closing safety mechanism comprises a bottom plate, a rectangular plate is fixedly installed on one side of the bottom plate, a box body is fixedly installed at the bottom of the rectangular plate, and the rectangular plate is provided with a door closing safety mechanism used for automatically opening and closing an oven door. The door closing safety mechanism comprises a circular plate arranged on the rectangular plate. According to the baking oven, the gear motor conducts back transmission, the adapter plate and the adjustable connecting rod can be driven to move, the switching hinge is pulled through the spring steel ball pin, the baking oven door is driven to achieve the closing action, when the second proximity switch is triggered through the inductive sensor, the system closes the gear motor at the moment, and due to the structure of the gear motor and the angle of the adjustable connecting rod, the baking oven door can be closed. After the oven door is closed, the self-locking effect can be achieved, the door opening and closing functions of different oven doors and the adjusting function of different door closing sealing tensioning force are achieved, and therefore the flexibility and safety in the using process can be improved.

The invention discloses a three-dimensional laser scanning device for ship body modeling based on data processing, and relates to the technical field of ship body modeling, the three-dimensional laser scanning device comprises a supporting frame, a laser scanner is fixed on one side of a sliding block, the outer side of a bearing frame is covered with a protective cover, and a second incomplete gear penetrates through the protective cover. According to the three-dimensional laser scanning device for ship body modeling based on data processing, after a ship body model is placed on the supporting table, an air suction head abuts against the bottom of the ship body model, an air suction fan rotates, the air suction head sucks air downwards, so that the ship body model is adsorbed and fixed, meanwhile, an air suction pipeline and the supporting table integrally rotate, and the ship body model is rotated by 360 degrees; after the ship body model rotates by a circle every time, a third circular gear rotates, a sliding block on a first lead screw moves upwards, meanwhile, a sliding block on a second lead screw moves rightwards, the two laser scanners can scan the side face of the ship body model and the top of the ship body model respectively, and therefore three-dimensional scanning work is automatically completed.

The invention discloses an auxiliary positioning and supporting device for hydraulic cylinder barrel inner wall machining, and belongs to the technical field of positioning and supporting devices.The auxiliary positioning and supporting device comprises a base, a transmission mechanism and a lifting mechanism, a control panel is installed on the front end face of the base, a forward and reverse motor is installed on the right side of the base, the lifting mechanism is arranged at the upper end in the base, and a containing plate is arranged at the top of the base; and the upper surface of the placing plate extends to the interior to be provided with a placing groove, the bottom of the placing groove is provided with a communicating mounting groove, and a magnetic suction cup is mounted in the mounting groove. Through the structural design of the mounting box, the placing plate, the clamping plate, the placing groove, the magnetic suction cup, the mounting groove and the transmission mechanism, the hydraulic cylinder barrel can be conveniently clamped and fixed, the self-locking effect can be achieved through mutual cooperation of a worm and a worm gear, and therefore the stability of the hydraulic cylinder barrel after clamping can be effectively guaranteed, and the practicability is high. And the later machining effect of the hydraulic cylinder barrel is guaranteed.

The utility model discloses a telescope quick centering device, which belongs to the technical field of telescope manufacture, and comprises a box body and a transmission mechanism, the top of the box body is fixedly connected with a mounting column, the front end face of the mounting column is rotatably provided with a rotating plate, the box body is internally provided with a telescope main body, and the bottom of the telescope main body is provided with a first clamping plate; the top of the telescope body is provided with a second clamping plate, and the top of the second clamping plate is provided with a transmission mechanism. According to the utility model, through the structural design of the rotating plate, the second clamping plate and the transmission mechanism, the telescope can be quickly centered, and through the mutual cooperation of the worm gear and the worm, the self-locking effect can be realized, so that the centering effect is improved, and the problem that the telescope is quickly centered by using the elasticity of a spring but the use time is increased is solved. The elasticity of the spring is gradually reduced, and finally, the situation that centering cannot be carried out or the centering effect is poor possibly occurs, so that the use requirements of people are difficult to well meet is solved.

The utility model discloses a self-locking boiler door which comprises a boiler body, the outer portion of the boiler body is rotationally connected with a door body, a first sliding groove is formed in the door body, and a square groove is formed in the boiler body; and the self-locking assembly comprises a sliding block, the sliding block is connected to the interior of the first sliding groove in a sliding mode, and the first sliding groove and the square groove are arranged in a radian mode, so that when the door body is closed, the square groove coincides with the first sliding groove along the radian line. According to the device, firstly, the device is placed at a proper position, when a door body is closed, a sliding block is clamped in a square groove, meanwhile, a locking block is clamped in a round hole and extrudes two trapezoidal clamping blocks, the trapezoidal clamping blocks contract along the interior of a second sliding groove after being extruded, and when the trapezoidal clamping blocks slide to the right sides of the trapezoidal clamping blocks, the door body is closed. And through the elastic force of the reset spring, the two trapezoidal clamping blocks lock the locking block, and the self-locking effect on the door body is synchronously achieved.

The application relates to an RV reducer with an output locking function, which comprises an RV reducer body, an output locking disc, an input shaft limiting screw, a motor connecting shaft and an elastic component. The output locking disc is coaxially fixed outside an output disc of the RV reducer body. An input shaft of the RV reducer body is installed in the reducer body in a displaceable manner along an axial direction. An installation hole is arranged at a power input end of the input shaft, and an outer spline is arranged at the other end. The input shaft limiting screw is connected with a self-locking threaded hole on the output locking disc, and the elastic component is arranged in the installation hole. The output shaft limiting screw and the elastic component are matched to realize axial positioning of the input shaft. The inner end of the motor connecting shaft is drivingly connected with the power input end. When the RV reducer is in a running state, the outer spline of the input shaft is in a disengaged state with a spline hole section of the output locking disc. When the RV reducer is in a locking state, the outer spline of the input shaft is in a matched state with the spline hole section of the output locking disc. The application realizes self-locking of the reducer.

The novel lifting table with the motor self-locking structure comprises two stand columns and a table plate, sliding grooves are formed in the top ends of the two stand columns, sliding plates are connected into the sliding grooves in a sliding mode, lifting legs are fixedly arranged at the top ends of the sliding plates, the lifting legs are fixed to the bottom end of the table plate, grooves are formed in the outer walls of the two stand columns, and the lifting legs are fixed to the bottom end of the table plate. A supporting block is arranged in the groove, a motor is fixedly arranged at the bottom end of the supporting block, a first cavity is formed in the supporting block, an output shaft of the motor penetrates through the top end of the supporting block, a worm is fixedly arranged on the output shaft, a worm gear is meshed with one side of the worm, the worm gear and the worm are both located in the first cavity, a sleeve is fixedly arranged in the worm gear, and a protective shell is arranged on one side of the sleeve. The lifting table with the self-locking function is reasonable in structure, and the lifting table has the advantage of being good in self-locking performance through matching of the worm gear, the worm and the torsional spring.

The hardness-adjustable bicycle front fork comprises a vertical pipe, a connecting pipe is arranged at the bottom of the vertical pipe, a connecting piece is welded to the bottom end of the vertical pipe, the end, away from the vertical pipe, of the connecting piece is embedded in the inner wall of the connecting pipe, and an adjusting mechanism is arranged on the inner wall of the bottom of the connecting pipe. The adjusting mechanism comprises a threaded cylinder, a threaded ejector rod, an adjusting knob and a protective cover, the threaded cylinder is connected with the inner wall of the bottom end of the connecting pipe through a bearing, and the inner wall of the top of the threaded cylinder is in threaded connection with the threaded ejector rod; the extension length of the vertical pipe can be adjusted through the adjusting mechanism, so that the head height of the whole bicycle is adjusted, people with different requirements can use the bicycle conveniently, meanwhile, an upper adjusting knob or a lower adjusting knob can be twisted independently, and hardness adjustment can be conducted on dampers at the upper sleeve and the lower sleeve independently; therefore, the multi-stage adjustment of the buffering hardness is realized.

This invention discloses an uninterrupted meter replacement box, comprising a box body, a drive device, a shorting device, and a meter pushing device. The box body is equipped with connecting terminals. The drive device includes a drive handle and a transmission assembly. The first end of the drive handle has a hook, the second end is hinged to the box body, and the third end is hinged to the transmission assembly. The hook is used to engage with the meter's slot when the meter is installed. The drive handle is driven to rotate, causing the hook to disengage from the slot and, through the transmission assembly, to translate the shorting device and the meter pushing device. This allows the shorting device to short-circuit two connecting terminals of the same phase, and after short-circuiting, the meter pushing device pushes the meter out of its position. The meter pushing device is also used to be pushed in the opposite direction by the meter during installation, causing the shorting device to disengage from the connecting terminals and rotating the drive handle until the hook engages with the slot. The uninterrupted meter replacement box provided by this invention enables uninterrupted meter replacement, effectively reduces replacement steps, improves replacement efficiency, and avoids misoperation.

The utility model discloses a locking structure of contactor for ship, include: counterforce mechanism includes connecting rod, and connecting rod is connected with support, interlocking piece and connecting rod cooperation form first locking portion, second locking portion, and interlocking piece is equipped with interlocking hole, and first locking portion, second locking portion form the connecting fixed of connecting rod and interlocking piece, drive assembly includes drive source and lock bolt, and drive source drives lock bolt to move, and the state of opening and closing, and lock bolt extends to interlocking hole, and lock bolt locks interlocking piece, and the state of closing, and lock bolt is from interlocking hole and extends, and connecting rod drives interlocking piece to move, this structure, simple structure, locking effect is good, avoids the misoperation of contactor under the vibration environment, improves the stability of contactor work.

The invention discloses a high-integration water quality rapid monitoring device which comprises an ultraviolet water quality monitor and a fixing cover, the fixing cover is fixed to the lower end of the ultraviolet water quality monitor, a filter screen is installed on the fixing cover, a hoisting mechanism is installed at the upper end of the ultraviolet water quality monitor, and a sampling mechanism is arranged in the fixing cover. The sampling mechanism comprises a movable table, two sample storage grooves and through holes, the two sample storage grooves are formed in the movable table, and the through holes are uniformly formed in the movable table. According to the high-integration rapid water quality monitoring device, in the using process of the device, when a movable table moves, a piston head can slide upwards in a sample storage groove through contact stress movement of an ejector rod and a fixed cover and cooperation with the action of a connecting rod and a guide rod, so that water samples in the sample storage groove are completely discharged, and the situation that the detection accuracy is affected due to mixing of the water samples is avoided; and when the ejector rod is separated from the fixed cover, the piston head slides downwards in the sample storage groove so as to realize sampling operation.

The present invention discloses a detachable self-locking retaining ring nut assembly, which relates to the technical field of self-locking nuts, including a nut assembly body, the nut assembly body including a tightening part body, a movable part body and two retaining rings, the surface of the retaining ring close to the movable part body is fixedly connected with two mounting blocks, the surface of the movable part body is symmetrically provided with mounting grooves, the surface of the movable part body is fixedly connected with a shell, the movable part body is provided with a cavity matched with the shell, pressure plates are arranged on both sides of the shell, a locking component is also included to make the two pressure plates move back to back, a reset component and two groups of early warning components are also included to limit the positions of the two pressure plates, and the two pressure plates can be quickly reset when reset, and the two groups of early warning components are used to improve the safety of the two pressure plates. The present invention has the effect of improving the convenience of maintenance and facilitating the use of personnel through the mutual cooperation between the above structures.

According to the door body assembly and the refrigeration equipment, the door body assembly is fixed through a pure buckle insertion structure, screws are omitted, the assembly process is simplified, and the manufacturing cost is reduced. The door body assembly comprises a decorative strip and a frame. The decorative strip is provided with an abutting wall, a vertical limiting part (comprising a first inclined wall, a second inclined wall, a first positioning part and a second positioning part) and a horizontal limiting part, the first inclined wall and the second inclined wall incline in opposite directions, and the distance between the outer surfaces is gradually increased when the distance is close to the abutting wall. In the assembling process, the frame is inserted into the decoration strip in the extending direction and abuts against the first inclined wall and the second inclined wall, the inclined walls are obliquely designed to guide the frame to slide stably till the end of the frame makes contact with the abutting wall, the first positioning wall naturally abuts against the first positioning part, the second positioning wall naturally abuts against the second positioning part, and the locking effect is achieved. The design limits the movement of the frame in the vertical and horizontal directions, and ensures high assembly precision and strong stability. The locking device is simple to operate, can be locked only through vertical pushing, shortens the assembly time, is suitable for refrigeration equipment such as a refrigerator, improves the durability and attractiveness of a door body, reduces the material management and quality control cost, and realizes structure optimization and function improvement.

The utility model provides a shaft centering horizontal adjusting device which comprises a base provided with an installation cavity and a sliding way, and the sliding way is arranged on the upper portion of the installation cavity and distributed in the horizontal direction; the upper end cover is arranged on the slide way in a sliding mode and fixedly connected with the motor elastic supporting piece; the transmission system comprises a worm, a worm gear in transmission connection with the worm and a linear conversion assembly in transmission connection with the worm gear, at least one end of the worm extends out of the mounting cavity, a rotating shaft of the worm gear is rotationally connected with the bottom face of the mounting cavity, and the linear conversion assembly is connected with the upper end cover and used for converting rotating motion of the worm gear into linear motion so that the upper end cover can slide along the sliding way. The motor level difference can be efficiently and conveniently adjusted.

The present invention discloses a highly integrated water quality rapid monitoring device, including an ultraviolet water quality monitor and a fixed cover, wherein the lower end of the ultraviolet water quality monitor is fixed with a fixed cover, a filter screen is installed on the fixed cover, a hoisting mechanism is installed on the upper end of the ultraviolet water quality monitor, a sampling mechanism is arranged in the fixed cover, and the sampling mechanism includes a movable platform, a sample storage tank and a through hole, two sample storage tanks are provided on the movable platform, and through holes are evenly provided on the movable platform. The highly integrated water quality rapid monitoring device, when the movable platform is moved during use, through the contact and force movement of the top rod and the fixed cover, in conjunction with the action of the connecting rod and the guide rod, the piston head can slide upward in the sample storage tank so that the water sample in the sample storage tank is completely discharged, and the mixing between the water samples is avoided to affect the accuracy of the detection. When the top rod is separated from the fixed cover, the piston head slides downward in the sample storage tank to realize the sampling operation.

The utility model relates to the technical field of wheel hubs, and discloses a wheel hub with a self-locking function, which comprises a wheel hub, a groove formed in the center of the wheel hub, a locking part arranged on the surface of the wheel hub and used for locking a bolt, and a control part arranged on the surface of the wheel hub and used for controlling the locking part, the rotating disc is rotatably installed on the surface of the hub, an arc-shaped groove is formed in the surface of the rotating disc, a sliding groove is formed in the surface of the hub, a sliding rod is slidably installed on the inner side of the sliding groove and penetrates through the arc-shaped groove, a contact rod is hinged to the end, away from the hub, of the sliding rod, and a torsional spring is fixed to the surface of the sliding rod. According to the hub with the self-locking function, through the arrangement of the locking part, when the hub vibrates in the using process and the nut rotates anticlockwise, the abutting rod can abut against the surface of the nut to lock the nut, the self-locking effect is achieved, and the phenomenon that the nut is loosened due to vibration in the using process of the hub is avoided.