357results about How to "Avoid loose connections" patented technology

The invention discloses an LED lamp. The LED lamp comprises a lamp base and a lamp holder arranged on the bottom of the lamp base. A containing cavity is formed in the bottom in the lamp base. Sliding grooves are formed in the left side and the right side of the containing cavity. Spiral rods are arranged in the sliding grooves, and the tops of the spiral rods are connected with a driver. A sliding plate is arranged in the containing cavity. The two side ends of the sliding plate extend into the sliding grooves and are in cooperation connection with threads of the spiral rods. The bottom of the sliding plate is provided with a connecting block. The bottom of the connecting block penetrates the bottom wall of the lamp base and is in sliding cooperation connection with the bottom wall of the lamp base. First grooves are symmetrically formed in the left and right in the connecting block. Counter bores are formed in the tops of the first grooves. A connecting groove is formed in a bottom end face of the connecting block. Parts, between the connecting groove and the first grooves, of the connecting block are internally provided with through grooves. The outer side wall of each through groove is symmetrically provided with second grooves. First sliding blocks are arranged in the first grooves. First tension springs are arranged between the tops of the first sliding blocks and the corresponding counter bores. The bottom of each first sliding block is provided with a sliding rod extending into the through groove. The LED lamp is simple in structure, convenient to operate, stable in insertion connection and high in safety.

The invention discloses a subsection blade of a wind turbine and an assembling method thereof. The subsection blade of the wind turbine is formed by two sections or more than two sections of composite material blade sections; a metal bolt sleeve is embedded at a connecting place of the blade sections, adjacent blade sections are connected by using a double-end reverse threaded bolt through a steel wire rope passing through a small hole on a bolt head to form an integral wind turbine blade. By adopting the subsection blade, the problem of difficult transportation of long blades can be solved and the transportation cost is reduced. Meanwhile, the subsection blade of the wind turbine has a simple connecting structure and high reliability and is convenient to assemble on site.

The invention discloses a power battery module, an assembling method and an electric vehicle. The power battery module comprises a battery compartment, flexibly packaged electric cores and a PBC plate arranged at the upper part of the battery compartment; a tab is arranged on the upper side of each flexibly packaged electric core; the battery compartment comprises a main fixed bracket in the middle; spliced brackets are arranged on the left and right sides of the main fixed bracket in a clamping manner; a plurality of electric core clamping grooves spliced by the main fixed brackets and the spliced brackets are formed in the left and right sides of the battery compartment; the electric core clamping grooves are longitudinally arranged along the battery compartment; the flexibly packaged electric cores are clamped in each of the electric core clamping grooves in sequence; tab perforating holes are formed in the position, corresponding to the tabs, in the PCB plate; the positive electrode tabs and the negative electrode tabs of the flexibly packaged electric cores upwardly penetrate through the corresponding tab perforating holes to form connection parts; the connection parts are bent to be clung to the PCB plate; and the connection parts are in spot welding connection with conductive nickel sheets on the surface of the PCB plate. The power battery module can avoid damage of the flexibly packaged electric cores and the environment pollution caused in the tin soldering process; and in addition, the power battery module is high in the assembling efficiency, suitable for industrial production and capable of ensuring reliable connection as well.

The invention discloses a vibration damper, which comprises an upper shell, wherein a height regulating threaded hole is formed in the center of the upper shell. The vibration damper also comprises a height regulating bolt and a locking nut which is tightly pressed against the upper end face of the upper shell, wherein the height regulating bolt comprises a first connecting section fixed on vibration-damped equipment, a second connecting section in threaded connection with the locking nut in a matched way and a third connecting section in threaded connection with the height regulating threaded hole in the matched way. According to the vibration damper, the height regulating bolt and the locking nut are in threaded connection with the upper shell to form a structure for regulating the height of the vibration damper, and when the height is regulated, the height regulating bolt is regulated to a required height by virtue of matched rotation between the third connecting section and the height regulating threaded hole, and the locking nut is tightly pressed against the upper end face of the upper shell, thereby firmly positioning the height regulating bolt in the upper shell and prevent the height regulating bolt from swaying in the upper shell; therefore, the condition that connection between the vibration damper and the vibration-damped equipment is loosened under the swaying of the height regulating bolt is prevented.

The invention relates to a single-joint water machine fish which comprises a shell, a main board cabin, a motion control cabin and a battery cabin; the outer contour of the shell is in a bionic fish shape, one end of the connecting rod is a front shell, and the other end of the front shell is of a bionic fishtail structure, and the front end of the main board cabin is matched and installed with the inner side of the front casing, wherein a lens set is arranged in the main board cabin, an eccentric anti-shake mechanism and a main PCB (printed circuit board), wherein the motion control cabin is connected with the rear end of the main board cabin, a three-axis linkage device and a transmission device are arranged in the motion control cabin, and the battery cabin is arranged below the motion control cabin according to the single-joint water machine fish disclosed by the invention, the special design is adopted for the single-joint water machine fish, the functions of water depth detection, water quality monitoring, underwater photography, underwater exploration, fish school detection, feeding, drug delivery, underwater engineering acceptance and underwater communication, underwater salvage, underwater rescue, seaborne rescue, sea, river, lake bed surveying and mapping, underwater drilling and flaw detection and the like can be realized.

The invention discloses an air purification device. The air purification device comprises a fastener and a purifier mounted in an electric connection seat, a clamping seat fixed above the right side surface of the purifier and a plug clamped in the clamping seat, wherein the center of the front end surface of the purifier is provided with a regulation and control part; the front end surface of the purifier above the regulation and control part is provided with an atomization port; the bottom of the purifier is provided with angle posts; the plug comprises an insertion part and a gripping part fixed to the bottom of the insertion part; a slotted hole is arranged in the top end surface of the insertion part; a tactile sensor is arranged in the slotted hole; a first slip cavity is arranged in the insertion part below the slotted hole; the left and right sides of the first slip cavity are correspondingly provided with second slip cavities; one side of the second slip cavity away from the first slip cavity is provided with a first cavity; a first slip block is arranged in the second slip cavity; an oblique head block penetrating into the first slip cavity is arranged at the inner side of the first slip block; a locking block penetrating through the first cavity and penetrating through the outer side wall of the insertion part is arranged at the outer side of the first slip block; a spiral rod is arranged in the first slip cavity; and the bottom of the spiral rod is connected with an electric rotating machine. The air purification device is simple in structure, convenient to use and favorable in purification effect, can automatically control locking, facilitates socket joint, has high firmness after being placed in a certain position, prevents the socket joint loosening phenomenon caused by accidental touch, and has prolonged service life.

The invention discloses a direct twisting machine with a lifting yarn balloon adjusting device. The direct twisting machine comprises a machine body, a support which lifts and slides along the machine body, a twister and a yarn tension device which lift with the support and a spindle installed on the machine body; the twister comprises a rotary and movable twister support, and the top of the twister support is sleeved with a bearing seat fixed to the support; the yarn tension device is located below the twister, and a circumferential limiting component limiting the yarn tension device rotation is arranged between the yarn tension device and the support. The invention further discloses a balloon adjusting method of the direct twisting machine. According to the direct twisting machine, the height between the twister and the spindle can be adjusted, the size of the balloon can be controlled, energy consumption can be reduced, and noise can be reduced.

The invention discloses an automatic cleaner for cleaning oil stains on the external thread surface of a petroleum drilling tool joint. The automatic cleaner comprises a power device and a steel wire brush; the power device comprises a housing as well as a motor and a speed reducer which are fixed in the housing; the steel wire brush comprises a hollow connecting sleeve, a cross connecting frame, a stabilizing bar, a brush head and a clamping plate; one end of the hollow connecting sleeve is connected with an output shaft of the speed reducer by screw thread, the cross connecting frame is sheathed in the thin end of the stabilizing bar, the other end of the hollow connecting sleeve is connected with the stabilizing bar by screw thread, and the cross connecting frame is clamped between the thick end of the stabilizing bar and the hollow connecting sleeve; the brush head consists of a brush plate and steel wires; the clamping plate consists of a brush head clamping part and a connecting part, a brush plate of the brush head is connected with a clamping part of the brush head by a slot, and the four connecting arms of the cross connecting frame are correspondingly connected with the connecting parts of the four clamping plates by bolts and nuts. The automatic cleaner for cleaning oil stains on the external thread surface of the petroleum drilling tool joint in the invention has the advantages of convenience in carrying and operation, saving manpower and thorough cleaning.

The invention relates to the field of building construction and particularly relates to a #-shaped floor tile laying device capable of achieving tight attachment. A technical problem to be solved by the invention is to provide the #-shaped floor tile laying device capable of realizing tight attachment. The #-shaped floor tile laying device capable of achieving tight attachment comprises a laying alignment system, a beating fastening system and the like; wherein the laying position correcting system is connected with the beating fastening system. The device is advantaged in that laying of the #-shaped floor tiles is designed, and conventional operation of manually laying the #-shaped floor tiles on a cement mixed base and then beating and fastening the laid floor tiles is omitted; in combination with the characteristic that the utilization rate of parking spaces is extremely high, floor tiles are tightly attached, and a problem that the next floor tile is not tightly laid due to the fact that the previous floor tile is laid is solved; and paving efficiency of the floor tiles is improved, and the current situation that #-shaped floor tiles cannot be tightly paved in the prior art ischanged.

A movable sun visor mechanism for vehicle light type switch comprises a movable sun visor and a light type switch driving device. The movable sun visor is arranged on a fixed sun visor of a vehicle light type switch device, and rotationally connected with the fixed sun visor through a revolving shaft of the light type switch driving device as well as the two ends of the revolving shaft, and oscillating bars extending in the radial direction of the revolving shaft, the movable sun visor is fixed and connected to the oscillating bars and arranged on the light axis of a vehicle light, the inclined angle between the movable sun visor and the light axis can be changed along with the revolving angle of the revolving shaft of the light type switch driving device. The contour line of the movable sun visor is located at the light path of the vehicle light, and the projection forms far and near illumination light types changing along with the revolving angle of a revolving shaft sub-assembly. The oscillating angle of the movable sun visor is the same with the revolving angle of the revolving shaft sub-assembly. According to the invention, the movable sun visor and a rotor have a linkage relation, so that accurate changes of light types are realized, and meanwhile, the collision noise generated during suction and release of electromagnets is avoided, so that a more comfortable driving environment is provided for users.

The invention provides an improved expansion bolt. The improved expansion bolt comprises a screw, a nut, a spring washer, a flat washer, an expansion sleeve and locking limiting strips, wherein an operating head is arranged at the top end of the screw; threads are arranged on the periphery of the upper end of the screw; the nut is mounted on the screw; the spring washer is mounted below the nut; the flat washer is arranged below the spring washer; a tail cone is arranged below the screw; the expansion sleeve is mounted above the tail cone; undercut grooves are formed in the lower end of the expansion sleeve; mounting grooves are formed in the expansion sleeve; each locking limiting strip is arranged in the corresponding mounting groove; a through groove is formed above each mounting groove; a plurality of adjusting grooves are formed in the screw and are matched with the locking limiting strips; a locking part is arranged on each locking limiting strip and is embedded in the corresponding through groove; and each through groove drives the corresponding locking part to expand in the radial direction. The problems that the expansion sleeve rotates along with the screw, so that the tail of the expansion sleeve cannot expand, and bolt connection is unstable can be avoided.

The invention belongs to the field of flanges and particularly relates to an anti-leakage liquid pipeline flange comprising a water inlet pipe, a left flange, a connection pipe, a right flange and a water outlet pipe. The left flange and the right flange are fixedly connected through bolts. The number of the bolts is at least 8. One end of the right flange is fixedly provided with an auxiliary clamping module. The auxiliary clamping module is used for connecting the left flange and the right flange. The other end of the left flange is provided with an annular groove. One end of the right flange is movably connected with the annular groove at the other end of the left flange in a sleeved manner through the auxiliary clamping module. The left end of the auxiliary clamping module is fixedly provided with a seal ring. An anti-shock module is arranged between the left flange and the connection pipe. According to the anti-leakage liquid pipeline flange, the auxiliary clamping module assistsin connecting the left flange and the right flange, so that connection between the left flange and the right flange is prevented from being loose; the anti-shock module lightens shock of liquid in thewater inlet pipe on the combination face between the left flange and the right flange, so that the connection seal performance of the left flange and the right flange is improved.

The invention discloses a compression joint type power battery assembly structure, an assembling method and an electric vehicle. The compression joint type power battery assembly structure comprises an upper part battery compartment, flexibly packaged electric cores and a protection cover arranged in a battery compartment; two tab-fixing copper plates are arranged on the opening side of the battery compartment; a positive electrode tab and a negative electrode tab of each flexibly packaged electric core are covered by the two tab-fixing copper plates respectively; tab perforating holes are formed in the position, corresponding to the tabs, in the tab-fixing copper plates; the tabs of the flexibly packaged electric cores penetrate through the tab perforating holes to be bent to form pressing parts clung to the upper surfaces of the tab-fixing copper plates; compressing copper plates for propping and pressing the pressing parts are arranged on the tab-fixing copper plates; the compressing copper plates are connected with the tab-fixing copper plates through threaded fastening parts; the compressing copper plates are further provided with connection member parts; and the compressing copper plates are covered by the protection cover. The compression joint type power battery assembly structure can avoid damage of the flexibly packaged electric cores and the environment pollution caused in the tin soldering process; and in addition, the assembly structure is suitable for industrial production and capable of ensuring reliable connection as well.

The invention provides a microprocessor control electro-hydraulic servo load-shear test machine which comprises a host, a horizontal dynamic single-shear loading mechanism, a horizontal static double-shear loading mechanism, a rotating angle measuring system, a hydraulic system and a control system. A four-stand-column oil cylinder upside arranging structure is adopted for the host, a main oil cylinder achieves guiding through four reinforcing plates, the horizontal dynamic single-shear loading mechanism, the horizontal static double-shear loading mechanism and the four-stand-column oil cylinder upside arranging structure are used in cooperation, and therefore test space is large, operation is convenient, assembling is easy, experiment data is precise, the machine can be used as a highway and railway bridge and a high-damping rubber bearing and can also be used for a building component compression test, and multiple purposes are achieved through one machine.

The invention relates to a novel telescopic power transmission line inspection device comprising a telescopic rod made of an insulating material. A handle is connected to the bottom of the telescopic rod; and a battery is arranged inside the handle. An illumination lamp is arranged on the top of the telescopic rod; a mounting ring is fixedly arranged below the illumination lamp; a mounting seat is arranged on the outer side of the mounting ring; and a camera is connected to the mounting seat in a threaded mode. A mounting sleeve is arranged on the bottom of the telescopic rod and is connected to the telescopic rod in threaded connection. An upper limiting ring fixedly connected with the telescopic rod is arranged above the mounting sleeve; and a lower limiting ring fixedly connected with the telescopic rod is arranged below the mounting sleeve. A display device connected with the camera is arranged on the mounting sleeve. The display device, the camera, and the illumination lamp are connected with the battery electrically. Provided in the invention is a novel telescopic power transmission line inspection device.

The invention discloses a screw fixation structure of liquid magnesium alloy that includes magnesium alloy section and hardness embedded component. The hardness embedded component is fixed in the magnesium alloy section and has screw. The structure could avoid loosing phenomena, and has simple structure.

The invention discloses an anti-falling double-pin plug. A socket is included, wherein two jacks are symmetrically formed in the upper end face of the socket; a plug body is arranged on the upper endface of the socket; a round opening is formed in the upper end of the plug body; an attracting and pulling mechanism is arranged at the round opening, and the attracting and pulling mechanism comprises an elastic leather bag; a pull ring is arranged on the upper end surface of the elastic leather bag; an inner cavity is formed in the plug body; and two pins corresponding to the jacks are symmetrically arranged on the lower end face of the plug body. According to the plug, the plug body is inserted into the jacks through the pins; and a friction block extends out of the side walls of the pins and abuts against the inner walls of the jacks, so that the friction force between the pins and the inner walls of the jacks is increased, the contact between the pins and the inner walls of the jacksis more stable, the connection loosening and poor contact between the plug body and the socket can be avoided, and the situation that an electric appliance is powered off due to the fact that the plugbody is touched and falls off is further avoided.

The invention relates to a flexible disturbance spike tooth mechanism of a high-moisture-content corn threshing cylinder. The mechanism comprises a cylinder body, spike tooth supports and spike teeth,the cylinder body comprises a plurality of annular cylinder shells arranged along the axial direction of the cylinder shaft and a plurality of plurality of supporting devices arranged between the cylinder shaft and the cylinder shell, the spike tooth supports are uniformly arranged along the outer circle of the cylinder shell, the spike tooth support is internally provided with a space for accommodating the disturbance mechanism, the upper end of the spike tooth is a coarse end thread, the downward sequence is a coarse end cylinder, a fine end cylinder and a fine end thread, the spike teeth are arranged on the spike tooth supports and are matched with the disturbance mechanism, so as to realize the telescopic and lateral swinging motion of the spike teeth in the radial direction. The flexible disturbance spike tooth mechanism of a high-moisture-content corn threshing cylinder has the advantages of flexible threshing, low kernel loss rate, easy maintenance and replacement.

The invention provides an ejecting mechanism for a side inclined hole. The effect of demolding a large-side area and the side hole by one core pulling mechanism respectively is realized. A moving mold(1) is provided with an oil cylinder (5); the oil cylinder (5) is provided with a pushing rod (6); a pushing block (8) is in threaded connection with the pushing rod (6); a large sliding block (4) isconnected with the pushing block (8); an insert (9) is provided with a slide (10); an elastic pin (11) is glidingly arranged inside the slide (10); a profile fit with the side hole (02) is arranged at one end of the elastic pin (11); a base (12) is fixedly arranged at the other end; a large sliding block (4) is provided with a pipeline (13); the elastic pin (11) is sleeved with a spring (14); thespring (14) is located in the pipeline (13); and the elastic pin (11) comprises an ejecting pin (22), an ejecting pin base (23) and an ejecting pin fixing pipe.

The invention relates to the technical field of cable connection, and discloses a cable joint protection device. The cable joint protection device is used for protecting joint parts of two cables andcomprises a first hard shell, a second hard shell and two welding sections, and the first hard shell is used for being arranged on one cable in a sleeving mode; the second hard shell is used for beingarranged on the other cable in a sleeving mode, and the second hard shell and the first hard shell are connected in a sealed mode to form a containing space for containing the joint part of the cable; the two welding sections are connected to the ends, deviating from each other, of the first hard shell and the second hard shell respectively, and the welding sections can be connected with an outersheath of the cable in a welding mode. The cable joint protection device is simple in structure, has external extrusion resistance and is good in waterproof effect.

The invention relates to a metal-to-metal sharp angle seal welding pipe joint. A pipe joint with simple installation and reliable mounting performance does not exist at present. The pipe joint comprises a joint body, a welding connection pipe with a connection pipe body and a nut, wherein the outer wall of the connection pipe body is provided with a circle of lug boss. The pipe joint is characterized in that: one end of the joint body is provided with a sealing plane; one end of the connection pipe body is provided with a sharp angle sealing ring with a sharp angle, the cross section of the sharp angle is provided with two edges, the included angle between the edge extending to the outer wall of the connection pipe body and the end face of the connection pipe body is 8 to 60 degrees, and included angle between the edge extending to the inner wall of the connection pipe body and the end face of the connection pipe body is 15 to 60 degrees; the other side of the lug boss is provided with a circle of stress plane and a circle of deformation groove with arc structure bottom; and the welding connection pipe is arranged in the nut, the nut is connected with the joint body, the sharp angle sealing ring is jacked on the sealing plane, and the stress plane is jacked on the nut. The pipe joint has reasonable design, simple installation, reliable sealing performance, high working pressure and wide application range.

The invention relates to a screw detection mechanism and detection method and an automatic production line. The screw detection mechanism comprises a frame, a driving device, a detection board and a displacement sensor. When a screw is detected, firstly the reading of the displacement sensor is set to be X when the screw is screwed in position; then the driving device drives the detection board tomove down, a contact of the displacement sensor makes contact with the surface of a workpiece first, and the detection board abuts against the top surface of the screw to be detected; then the reading of the displacement sensor is read after the detection board is stable and the reading is compared with X; if the reading is equal to X, the screw to be detected is screwed in position; if the reading is not equal to X, the screw to be detected is not screwed in position; and if the screw is not screwed in position, the screw is screwed in position in time. Therefore, the situation of untight connection between workpieces can be avoided, and the problems of reduced work efficiency and increased maintenance costs due to looseness between the workpieces can be prevented.

The present invention discloses an adjustable filter head of a cast-in-place filter plate. The adjustable filter head comprises a filter cap, a filter seat, a filter rod and a template. The filter cap forms a thread and fixed connection with the filter seat. The filter seat respectively forms thread connections with the filter rod and the template. The filter rod and the template are provided with fixation clamping strips, wherein the fixation clamping strips are mutually matched. The filter rod can be adjusted to move up and down in the filter seat, and has good fastening property. According to the present invention, with adopting the template to install and control, the uniformity of the filter seat product size, the tight match of the filter seat and the template, the levelnesses of the template and the top surface of the filter seat are controllable, it is ensured that the levelnesses of the cast-in-place reinforced concrete filter plate is in a controllable range; with the thread adjustment of the filter seat and the filter rod, the backwashing gas inlet hole and the gas inlet strip crack of each filter rod are respectively at the same height level so as to fully meet the quality requirements; with the interference match and fixation of the matched clamping strips arranged on the filter rod and the filter seat or the template, the backwashing vibration can not cause the position change of the filter rod. With the present invention, the long term operation effects of air-water backwashing and filtering of the filter tank are ensured.

The invention discloses a practical LED lamp, which comprises a lamp holder and a lamp holder arranged at the bottom of the lamp holder. The inner bottom of the lamp holder is provided with a cavity; The top of the screw rod is connected with the driver, and there is a sliding plate in the cavity. The two sides of the sliding plate extend into the sliding groove and are connected with the spiral pattern of the screw rod. The bottom of the sliding plate is provided with a connecting block, and the bottom of the connecting block runs through the bottom of the lamp holder. The walls are slidingly matched and connected. The interior of the connecting block is provided with a first groove body symmetrically on the left and right sides. The top of the first groove body is provided with a countersunk hole. There are through grooves in the blocks, the outer side wall of each through groove is matched with a second groove body, a first sliding block is arranged in the first groove body, and a first tension spring is arranged between the top of the first sliding block and the counterbore, The bottom of the first sliding block is provided with a sliding rod extending into the through groove; the invention has simple structure, convenient operation, stable insertion and high safety.

The invention discloses a locknut and is characterized in that: the lower end surface of the locknut is in an inwards-concave trumpet-shaped inclined plane structure, and an inclination angle Beta is formed between the lower end surface and a connected part; and a rubber gasket is arranged between the locknut and the connected part. By adopting the structure, the locknut has the following advantages: 1, with the locknut, the friction coefficient between the locknut and the connected part is increased, the bolt connection is effectively prevented from loosening, the fatigue life of the connected equipment is prolonged, the safety of the bolt connection is improved, and accidents are avoided; 2, with the special structure of the lower end surface of the locknut, the pre-tightening force at the outer edge is enabled to be the greatest, and furthermore, the force arm from the pressure action point to the bolt center is guaranteed, and the locknut is effectively prevented from loosening; and 3, the structure is simple, the locknut is easy to produce, the cost is low, and the performance is reliable.