38results about How to "Avoid loose installation" patented technology

The invention discloses an installation method for an urban utility tunnel pre-buried channel. The installation method comprises the steps of making a channel bolt; trepanning a template according tothe screw size of the channel bolt and the required design position of a pre-buried channel in advance; installing a clip of the channel bolt in the pre-buried channel; fixing the pre-buried channel to the template by the channel bolt and nut; and performing engineering installation of the template. According to the installation method, the pre-buried channel is fixed to the template by the channel bolt, not only can the installation quality of the pre-buried channel be ensured, but also the template is not damaged; and meanwhile the channel bolt can be reused, so that the cost is saved.

The invention discloses an electric drill capable of adjusting the diameter of a drill bit. The electric drill comprises a machine body assembly, a clutch sliding sleeve, a hydraulic adjusting assembly and an expandable drill bit. Due to the adoption of the expandable drill bit, the thickness of the drill bit can be adjusted by using the oil mass according to the requirements, the stepless gradient adjustment can be realized, the processing requirement of aperture within a certain range is easily met without the replacement of the drill bit, the condition that the mounting is not firm due to frequent replacement of the drill bit is avoided, and the operation safety is improved; the hydraulic adjusting assembly and the expandable drill bit are powered by one output shaft; power switch is realized by the clutch sliding sleeve, and the adjusting difficulty of the expandable drill bit is reduced, so that the operation for the expandable drill bit is more convenient and quicker; the utilization rate of parts is improved to the maximum extent, so that the machine body assembly can use the existing structure without changing, and the processing and the implementation are realized more easily.

The invention discloses an auxiliary device with a stable structure and for steel structure installation, and relates to the technical field of steel structure installation. The device aims to solve the problem of height adjustment. The device particularly comprises a moving vehicle, wherein a lifting assembly is arranged at the top of the moving vehicle, the lifting assembly comprises a first supporting rod and a supporting plate, the first supporting rod is rotatably connected to the top of the moving vehicle, the supporting plate is fixed to the top of the moving vehicle through screws, a rotating motor is fixed to the top of the supporting plate through bolts, a first threaded rod is welded to an output end of the rotating motor, and a fixing block is connected to one end of the firstthreaded rod through a bearing and welded to the top of the moving vehicle. By arranging the lifting assembly, a workbench can be lifted to the position where the workbench needs to be installed, therotating motor is used for driving the first threaded rod to rotate, a first moving plate is made to move in the direction of the first threaded rod, then a moving sliding block and a push rod are made to move, the workbench is lifted, and a steel structure can be freely installed at a high position and can be freely adjusted according to the installation requirement.

The invention discloses a wall guard and an installation method thereof and solves the problems that the existing wall guard board is easily damped, molded and deformed, the product service life is short, the application scope is narrow and the like. The wall guard is characterized in that the wall guard comprises a wall guard board (1) and a hanging and fastening assembly, and the wall guard board (1) is installed on a wall through the hanging assembly, wherein the hanging and fastening assembly (11) comprises a first hanging piece (2) which is fixedly arranged on the wall body, and a second hanging and fastening piece (3) which is fixedly arranged on the back surface of the wall guard board (1); the installation of the wall guard board (1) is realized through the mutual fastening of the first hanging and fastening piece (2) and the second hanging and fastening piece (3). The wall guard and the installation method thereof have the advantages that not only is the structure simple and the cost low, but also the wall guard board is not in direct contact with the wall body, and the wall guard board is prevented from being damped, molded and deformed.

The invention provides an environment-friendly oil receiving box capable of cleaning oil liquid conveniently and used for a range hood. The environment-friendly oil receiving box comprises an oil discharging base, a first baffle and a movable oil receiving bottle; the oil discharging base is fixedly arranged at the bottom of an oil receiving box main body; and the movable oil receiving bottle is fixedly installed at the bottom of the oil discharging base. According to the environment-friendly oil receiving box, due to the fact that the oil discharging base is arranged, the phenomenon of oil leakage caused by dismounting looseness is prevented; when waste oil in the oil receiving box needs to be cleared, the movable oil receiving bottle is installed at the bottom of the oil discharging basefirst, then two fingers hold two rotary handles, the two rotary handles are pulled downwards, the two rotary handles are pushed to rotate by 90 degrees anticlockwise, and the two rotary handles are loosened; a second oil leakage hole and a first oil leakage hole are in an overlapped state at the moment, the waste oil in the oil receiving box main body can flow into the movable oil receiving bottle through the two through holes, and the waste oil flowing out can be treated through the movable oil receiving bottle; and the oil receiving box main body does not need to be frequently disassembledwhen the waste oil is cleared, so that installation looseness or infirmness at the mounting position are effectively avoided, and the phenomenon of oil leakage can be prevented.

The invention discloses a wind speed alarm system device of a ventilation cabinet. The device comprises a connecting column and a connecting base, wherein the connecting base is installed at the upperend of the connecting column, a wind speed monitoring host is arranged at the upper end of the connecting base, an auxiliary mounting and reinforcing device is connected to the outer portion of the circumference of the center of the connecting column in a sleeving mode, and the novel auxiliary mounting and reinforcing device is additionally arranged outside the circumference of the center of theconnecting column of the wind speed alarm system device of the ventilation cabinet, so that the novel auxiliary mounting and reinforcing device can play an auxiliary mounting role when the wind speedmonitoring host is mounted in a ventilation pipeline of the ventilation cabinet, after the wind speed monitoring device is mounted in the ventilation pipeline, the auxiliary mounting and reinforcing device can also play a role in reinforcing the mounted wind speed monitoring device through the outward tightening pressure generated by the auxiliary mounting and reinforcing device, and in this way,the auxiliary mounting and reinforcing device can generate auxiliary mounting and auxiliary reinforcing effects on the wind speed monitoring device when and after the wind speed monitoring device is mounted.

The invention belongs to the field of ophthalmology, and particularly relates to an ophthalmic injection and extraction device, aiming to solve the problems that existing rubber plugs are not mountedfirmly and syringe needles cannot be fastened. The ophthalmic injection and extraction device comprises a needle tube. A rubber plug is arranged in the needle tube. A pull rod is mounted on one side of the rubber plug, and a pull block is arranged at one end of the pull rod. An injection tube is arranged on one side of the needle tube, and a syringe needle movably sleeves the injection tube. A clamping plate sleeves the syringe needle, and a T-shaped hole is formed in the pull rod. A connection block is fixedly mounted on one side of the rubber plug, a connection rod is fixedly mounted on oneside of the connection block, and a connection groove is formed in one side of the pull block. The ophthalmic injection and extraction device has the advantages that an insertion rod is inserted intoa slot to complete mounting of the rubber plug, and the insertion mode can make the rubber plug mounted more firmly than conventional clamping modes; the syringe needle is clamped by an arc-shaped plate, unstable mounting of the syringe needle can be avoided, and people's demands are met.

The invention relates to a remote controller convenient to disassemble and assemble. The remote controller convenient to disassemble and assemble comprises a remote controller body and a threaded rod.A display screen is fixed to the middle of the left side of the remote controller body, positioning bolts are connected to the periphery of the left side of the remote controller body, and buffer springs are connected to the exteriors of the positioning bolts; one side of the buffer springs is connected with a protection plate, inserting rods are fixed to the periphery of the right side of the remote controller body, the other ends of the inserting rods are connected with a rotating baffle through positioning pins, a tension spring is fixed to the lower end of the rotating baffle, and a fixedsleeve rod is fixed to the middle of the right side of the remote controller body; and a limiting block is arranged in the fixed sleeve rod, and the threaded rod is located on one side of the limiting block. Compared with the prior art, the remote controller convenient to disassemble and assemble has the beneficial effects that a water quality intelligent detection box can be clamped by the equipment by rotating the baffle so that the equipment is convenient to install, and meanwhile, the equipment can prop against the water quality intelligent detection box through the push block to be prevented from loosening.

The invention discloses a link insulating board. The board comprises a first link insulating board, a second link insulating board, locking mechanisms and pre-positioning mechanisms. The first and second link insulating boards are spliced and assembled to form a link insulating board whole body. The first and second link insulating boards are provided with the locking mechanisms. One end of the first link insulating board and one end of the second link insulating board are movably hinged through a stainless steel hinge. The other end of the first link insulating board and the other end of thesecond line link insulating board are provided with pre-positioning mechanisms. The number of the locking mechanisms is two. The board is simple and reasonable in structure and convenient to use, andis composed of the first link insulating board and the second link insulating board, so that the link insulating board fixedly clamps an insulating ceramic sleeve, thereby effectively improving the installation firmness of the line link insulating board, and enabling the installation and disassembly of the link insulating board to be convenient without the impact on the use of the insulating ceramic sleeve. Moreover, the practicability is higher.

The invention discloses a friction fusion penetration self-extrusion screw, relates to the related field of sheet metal installation, and aims to solve the problem that the conventional sheet metal structure connection thread formation does not break through a traditional mode to simply, conveniently and quickly improve the efficiency. The friction fusion penetration self-extrusion screw comprises a cone positioning tip, wherein a reaming cone is fixedly connected to the top end of the cone positioning tip, a hole shaping section is fixedly connected to the top end of the reaming cone, a transition section is fixedly connected to the top end of the hole shaping section, a self-tapping thread section is fixedly connected to the top end of the transition section, a self-tapping thread is arranged on the outer surface of the self-tapping thread section, a cylindrical locking thread section is fixedly connected to the top end of the self-tapping thread section, an outer thread is arranged on the outer surface of the cylindrical locking thread section, a transition circular bead is fixedly connected to the top end of the cylindrical locking thread section, a concave containing ring is fixedly connected to the top end of the transition circular bead, and the top end of the concave containing ring is fixedly connected with a flange.

The invention discloses a connecting structure of an unmanned aerial vehicle power supply controller. The structure comprises an unmanned aerial vehicle, a mounting groove is formed in the top side ofthe unmanned aerial vehicle; a mounting block is movably mounted in the mounting groove; a controller positioned above the unmanned aerial vehicle is fixedly mounted on the top side of the mounting block; cavities formed in the unmanned aerial vehicle are formed in the two sides of the mounting groove; swing holes are formed in the inner walls of the sides, close to each other, of the two cavities, swing rods are rotationally installed on the inner walls of one sides of the swing holes, the two ends of each swing rod extend out of the corresponding swing hole, rotating shafts are rotationallyinstalled on the inner walls of the top sides of the cavities, and rotating columns are fixedly installed at the bottom ends of the rotating shafts. The connecting structure is simple in structure, acommon bolt connection mode is changed, the problem that the controller cannot be dismounted due to corrosion or is not firmly mounted due to abrasion in the long-term use process of bolts is solved,the controller is more convenient and faster to maintain when needing to be maintained, and the requirements of people are met.

The invention discloses a gas distribution system of an engine, and the engine. A timing driving gear of the gas distribution system comprises a timing driving gear body and a shaft sleeve formed by extending in the axial direction of the timing driving gear body, the timing driving gear body forms transmission through the shaft sleeve, wherein a crankshaft is sleeved with the shaft sleeve in a transmission fit mode, and the crankshaft is sleeved with the timing driving gear body in a clearance mode. According to the gas distribution system of the engine, the timing driving gear body is in clearance fit with the crankshaft, the shaft sleeve part bears all interference force in transmission connection, and thus thermal deformation of the timing driving gear body is not restrained or not affected by thermal expansion of the crankshaft; the situation that the engaging transmission property of the gear is affected by thermal expansion of the crankshaft and thermal deformation of the gear can be avoided as much as possible, operation noise is reduced, the service cycle of components is prolonged, and thus normal operation of the engine is ensured; and due to the clearance, certain transmission and engaging flexibility is further achieved, the influence of thermal deformation of the gear on the engaging relation is counteracted, thus the transmission smoothness of the gas distribution system is ensured, overall low-noise and efficient operation of the engine is further ensured.

The invention discloses a household sewage treater base with a shock absorption function, relates to the technical field of sewage treaters, and aims to solve the problems that an existing household sewage treater is not stable enough in mounting and placement performance, generates a certain degree of shock in the use process and prone to affect the placement stability. The household sewage treater base is characterized in that a processor mounting base is mounted above a fixed supporting base, damping sliding grooves are formed in the two sides of the upper end of the processor mounting base correspondingly, mounting limiting plates are mounted above the damping sliding grooves, mounting fixing holes are formed in the upper end of the processor mounting base, a damping fixing groove is formed between the fixed supporting base and the processor mounting base, fixing limiting soft blocks are arranged on the two sides of the damping fixing groove correspondingly, and damping springs are mounted on the inner sides of the fixing limiting soft blocks.

The invention discloses a car body front panel forming die with a split type male die. The car body front panel forming die comprises an upper die mechanism and a lower die mechanism, wherein the upper die mechanism comprises an upper die base and an upper forming female die, the upper forming female die is fixedly mounted on the upper die base, and an upper forming face is arranged at the bottom of the upper forming female die; and the lower die mechanism comprises a lower die base, a lower forming male die and a floating base, the lower forming male die is fixedly mounted on the lower die base, a lower forming face matched with the upper forming face is arranged on the lower forming male die, supporting columns are arranged at the four inner corners of the lower die base, the floating base is elastically connected to the lower die base, the lower forming male die penetrates through the floating base, a plurality of first guide columns are arranged at the bottom of the floating base, and avoiding grooves corresponding to the supporting columns are formed in the four corners of the floating base. According to the car body front panel forming die with the split type male die, the die assembly precision of an upper die and a lower die is guaranteed while parts are conveniently stripped, and the forming effect of the parts is guaranteed.

The invention discloses a direct-current gear motor. The direct-current gear motor comprises a motor base and a motor body, connecting plates are symmetrically arranged on the surface of the motor base, a stabilizing base is arranged between the ends, deviating from the motor base, of the two connecting plates, the stabilizing base comprises a vertical part and a horizontal part, and a round coverand a buffer mechanism are arranged on the vertical part of the stabilizing base; the buffer mechanism comprises a fixed block, a sliding column, a first spring and a fixed column, the sliding columnand the fixed column are in a vertical state, the bottom end of the fixed column is connected with the stabilizing base and embedded into the surface of the top end of the fixed column, and the top end of the sliding column is connected with the fixed block; and the motor body is connected with the round cover in a clamped mode, the end, deviating from the motor base, of the motor body is embedded into the round groove, and the stabilizing base is stabilized between the two connecting plates. When the motor operates, the motor body is vibrated, and the first spring buffers vibration borne bythe motor body, so that the motor body is kept in a stable state, motor installation loosening is avoided and faults caused by long-time vibration of internal parts of the motor are avoided.