336results about How to "Avoid random rotation" patented technology

The invention relates to a sealed small low-impact release screw bolt. The bolt comprises an inner cylinder (1), a shear pin (2), a wedge block (3), a piston (4), a sealing ring (5), a double O-shaped ring sealed baffle (6) and an outer cylinder (7). The bolt is characterized by small size, sealing type, low impact, strong connection and no pollution. Before separated, the two polars of the connected body form strong connection; and when separated, the two polars of the connected body can be safely and fast separated and generate low impact disturbance, thus the bolt is a pyrotechnic connection separating device with good comprehensive performance, and can be directly used in the stage separating systems of the missile and other spacecrafts, also provide beneficial reference for the design of the similar separating mechanism, have good application prospect.

The invention is applicable to the field of connecting structures, and discloses an anti-rotation connecting structure and a lamp using the structure. The anti-rotation connecting structure comprises a first regulating disk, a second regulating disk and a compacting assembly, wherein the compacting assembly can be used for vertically bonding and compacting or loosing the first regulating disk and the second regulating disk, the compacting assembly penetrates through the first regulating disk and the second regulating disk, and fluctuant surfaces which are mutually engaged along a circumferential direction are arranged on the bonded end surfaces of the first regulating disk and the second regulating disk; and the lamp is provided with the anti-rotation connecting structure. In the anti-rotation connecting structure and the lamp using the structure provided by the invention, the fluctuant surfaces which can be mutually engaged along the circumferential direction are arranged on the mutually bonded surfaces of the first regulating disk and the second regulating disk, thereby the random angle rotation of products such as the lamp and the like can be prevented, the rotation angles of the products such as the lamp and the like can be accurately adjusted, and the reliability is good.

A vertical type flying probe tester clamp is used for clamping a PCB, and comprises a fixed board, a movable board, a first clamp bar, a second clamp bar, a guide component, an auxiliary spring, a connecting rod component, a limiting component and a drive component. When the clamp is in an open state, the auxiliary spring and a limiting spring are both in a compression state, the drive component drives the connecting rod component to move in the direction close to the fixed board, the connecting rod component drives the limiting component to move in the direction close the fixed board, the limiting spring applies pressure to the movable board to enable the movable board to move in the direction close the fixed board, the distance between the fixed board and the movable board is gradually reduced until the PCB is clamped, the pressure applied by the limiting spring is evenly dispersed to the movable board in a fixed mode, and even clamping force is applied to the PCB. When an object does not need to be clamped, the drive component only needs to move in the opposite direction, the object can be unloaded, and the operation is convenient. Meanwhile, a design method of the vertical type flying probe tester clamp is provided.

The invention discloses an omnidirectional wheel, a moving device and a control method of the moving device, belonging to the field of intelligent tools for riding instead of walk. The omnidirectional wheel comprises a center wheel and a plurality of peripheral wheels which are arranged in an arrayed mode along the circumference by taking the axis of the center wheel as an axle center, wherein a peripheral wheel braking assembly is arranged on the center wheel, and the peripheral wheel braking assembly can control the resistance when the peripheral wheels rotate. By arranging the peripheral wheel braking assembly for controlling the resistance when the peripheral wheels around the center wheel rotate on the center wheel, the problems in the related technology that the motion of the moving device in a braking process can not be controlled because of other reasons and the braking performance is relatively low are solved, thereby achieving the effects of increasing the resistance when the peripheral wheels rotate by the peripheral wheel braking assembly and preventing the peripheral wheels from rotating randomly.

The invention relates to cleaning equipment, in particular to special equipment for rapidly cleaning an insulator of an electrified railway. The equipment comprises a brush head part and a drive part, wherein the drive part can drive the brush head part to rotate along the axis of the insulator; and the brush head part is provided with a plurality of cylindrical brushes which can be inserted in the clearance of every two adjacent umbrella leaves of the insulator, can rotate around the axes per se, and can wipe the surfaces of the umbrella leaves. According to the invention, the drive part can drive the brush head part to rotate along the insulator, the brushes arranged on the brush head part can be inserted between different umbrella leaves to wipe all the umbrella leaves, and as long as the brush head part rotates around the axis of the insulator for one circle or even less than one circle, cleaning to the whole insulator can be realized with superhigh cleaning speed and without the need of water source and ascent of maintenance workers. The cleaning equipment is suitable for rapidly cleaning the insulators used in electric transmission lines of the electrified railway.

The invention discloses automatic code printing equipment which comprises a base (1), a rotary rod (2), a linear rack (3), a gear (4), an arc-shaped rack (5), L-shaped brackets (6) and an ejector rod (8). A guide rail (10) and a worktable (11) are connected with the base (1), the rotary rod (2) is hinged onto the base (1), and the linear rack (3) is arranged on the base (1) in a slide fit manner via a guide device; the arc-shaped rack (5) is arranged on the base (1) in a running fit manner via a swing rod (23), and the gear (4) is rotationally connected onto the base (1) and is meshed with the linear rack (3) and the arc-shaped rack (5); a second slide groove (17) is horizontally formed in the upper end of the ejector rod (8), a roller (20) is arranged in the second slide groove (17) in a rolling fit manner, a push plate (21) is fixedly connected to the lower end of the ejector rod (8), and an ejector head (22) is connected to the lower surface of the push plate (21). The automatic code printing equipment has the advantages of high production efficiency and low production cost.

The invention discloses a solar-energy electric board fixing device based on new energy. The device comprises a fixing seat. The internal portion of the fixing seat is provided with a cavity. The inner top wall of the cavity is fixedly inlaid with a first bearing. The inner bottom wall of the cavity is fixedly connected to a positive reversal motor. The output terminal of the positive reversal motor penetrates the first bearing and is extended to the upper portion of the fixing seat. By using the solar-energy electric board fixing device based on the new energy, through arranging a second slipring, the stability of the second slip ring can be effectively maintained and the second slip ring is prevented from randomly swinging during a moving process. Through arranging a deceleration motor,a rotating disc, a first slide rod, a first slip ring, a fixing column, an electric push rod and a second slide rod are cooperated and used so that the inclination angle of a fixing plate is effectively adjusted through the telescoping length of the electric push rod. Simultaneously, through the rotation of the rotating disc, the inclination direction of the fixing plate is adjusted so that a problem that an existing solar-energy electric board fixing device based on the new energy is not easy to adjust is solved.

The invention relates to a cup cover and a drinking cup provided with the cup cover for children. The cup cover comprises an inner cover, wherein the inner cover is connected with a cup body, a flip cover is arranged on the inner cover in a hinged manner, a hinge shaft is vertical to the length direction of the cup body, an opening is formed in the inner cover for a straw to penetrate through, the straw stretches into the cup body, the opening is provided with a baffle plate at a rotation path of the flip cover, a locking mechanism is arranged between the flip cover and the inner cover, the flip cover turns over and gets close to or far away from the baffle plate, corresponding to two position states that the locking mechanism locks or unlocks the flip cover; when a child needs to drink water, the locking mechanism unlocks to pull the flip cover, so that the flip cover gets away from the baffle plate, the upper end of the straw pops up from the opening, for the convenience for the child to drink water; when the drinking cup is not used, the flip cover is rotated to get close to the baffle plate, so that the straw is deformed and pressed, and then the locking mechanism locks the flip cover to avoid arbitrary rotation of the flip cover, and therefore clean water source in the cup body is ensured.

The invention relates to a pit digging device, in particular to a pit digging device for garden nursery stock planting. The purpose of the invention is to provide the pit digging device which can automatically dig a pit on the ground and can automatically loosen the excavated soil. The technical scheme is as follows: the pit digging device for garden nursery stock planting comprises a mounting plate, a plugboard, a guide sleeve, a guide rod, a first connecting rod, a plug rod, a wheel, a first sliding rail, a first sliding block, a lifting plate, a motor, a first rotating shaft and the like; the left end and the right end of the front and rear sides of the mounting plate are symmetrically provided with the plugboard, the middle part of the plugboard is provided with a guide hole, the guidesleeve is arranged between the upper parts of the plugboard at the left side and the right side of the guide hole, and the guide rod is slidably connected in the guide sleeve. In the invention, a user pulls the lifting plate to move downwards, the user starts the motor when the drill bit is in contact with the ground, the motor drives the first rotating shaft to rotate through the output shaft, the first rotating shaft drives the spiral blade and the drill bit to rotate, and the drill bit is perforated when the drill bit rotates downwards.

The invention discloses a strong-wind-self-protecting indicating plate and a control method thereof. The indicating plate comprises an upright column, a cross rod, an indicating plate body, a wind force or air velocity transducer, a connecting mechanism, a flexible unlocking mechanism and a control system, wherein a supporting seat is arranged on the upright column, and a shaft sleeve rotatably sleeving the supporting seat is arranged on the cross rod; the connecting mechanism is arranged between the upright column and the cross rod and comprises a rigid connection state and a flexible connection state which can be mutually switched; the flexible unlocking mechanism acts under the control of the control system, and thus, the connecting mechanism can be switched between the rigid connectionstate and the flexible connection state; the control system receives signals from the wind force or air velocity transducer and sends instructions to the flexible unlocking mechanism. The indicatingplate disclosed by the invention can be switched between rigid connection and flexible connection, and flexible unlocking is carried out when air velocity reaches a threshold value, so that a strong-wind-self-protecting function is achieved.

The invention relates to a rocking chair, in particular to an interesting rocking chair making injection of children convenient and used in the department of paediatrics. The technical problem to be solved is to provide the interesting rocking chair making injection of children convenient and used in department of paediatrics, wherein the chair can bundle the children to prevent the movement of the children in the injection process, and can divert children's attention in the injection process so as to prevent the children from crying. In order to solve the technical problem, the interesting rocking chair making injection of the children convenient and used in the department of paediatrics is provided and includes a seat and the like; the middle of the bottom of the seat is connected with asupport base, the front side of the middle of the seat is provided with a fixing mechanism, and the rear side of the middle of the seat is provided with a beating mechanism. The interesting rocking chair making injection of children convenient and used in the department of paediatrics is designed, a fixing mechanism can bundle the hands of the children so as to movement of the children in the injection process, the injection thus can be conveniently conducted, and the beating mechanism can attract the attention of the children so as to prevent the children from crying in the injection process.

The invention belongs to the technical field of articles for daily use, and particularly discloses a mosquito incense coil box facilitating taking. The mosquito incense coil box comprises a box body, a box cover, a push-out block, a strut, a screw ring, a screw plate and a baffle plate, wherein an elastic device for supporting mosquito incense coils is arranged at the lower end of the interior of the box body; the box cover is hinged to the box body; a groove for containing the screw ring and the strut is arranged at the upper end of the box cover; the push-out block is arranged between the box cover and the box body, and is slidingly connected with the box body; the strut is L-shaped; one end of the strut is hinged to the box cover; the other end of the strut is fixedly connected with the screw ring; a screw-shaped hollow is formed in the center of the screw plate; the screw plate and the baffle plate are obliquely fixed at the box body; the screw plate is positioned above the baffle plate; stop hooks are formed at the low ends of the screw plate and the baffle plate; and the strut, the screw plate and the baffle plate are positioned in the same vertical line. With the adoption of the mosquito incense coil box, the problems that the mosquito incense coils are not convenient to take, and coil division is troublesome are solved. Compared with the conventional mosquito incense coil box, the double-disc mosquito incense coils can be separated without being touched by hands, the process is quick and simple, and the mosquito incense coils are very convenient and quick to take, and can be taken out directly without opening the mosquito incense coil box.

The invention discloses a monkey wrench, which comprises a wrench body and a worm wheel, wherein the wrench body comprises a handle and a working part; the working part comprises a fixed part, a moving part and a chute; the lower end of the moving part is arranged in the chute; the bottom edge of the lower end of the moving part is provided with a tooth part; the working part comprises a through hole; the worm wheel is arranged in the through hole and meshed with the tooth part; when the worm wheel is rotated, the worm wheel and the tooth part function to drive the moving part to move towards or away from the fixed part; and threads of the worm wheel have at least two spiral lines. The monkey wrench can quickly adjust the distance between the moving part and the fixed part, and increase the torque borne by the worm wheel.

The invention discloses a high school chemical experiment beaker washing device. The high school chemical experiment beaker washing device comprises a base, wherein the top of the base is fixedly connected with a fixing block; the inside of the fixing block is movably connected with a rotating shaft; the surface of the rotating shaft is fixedly connected with a fixing plate. According to the highschool chemical experiment beaker washing device, the rotating shaft, a rotating block, an insertion rod, the fixing plate, a support plate, a humidity sensor switch, a water outlet pipe, a motor, a support block, a first circular block, a movable shaft, a second circular block, a belt, a beaker frame, a beaker seat, an air blower, an air filter, an electric heating wire, an ultraviolet sterilizer, a humidity sensor, a camera, an image processing CPU and an alarm are arranged and are matched with each other in use, the problem of low washing efficiency caused by a common method which is usually used for manually washing the beakers at present is solved; the beaker washing device is capable of efficiently washing; the beakers do not need to be washed manually; the working efficiency is improved; the time and the labor are reduced; people can conveniently use the device.

The invention discloses a winding device used for spinning silk yarn bundling, comprising a fixing base; a first cavity is arranged in the left end of the fixing base; a sliding hole is formed in theinner top wall of the first cavity; the interior of the first cavity is fixedly connected with a threaded rod; the outer surface of the threaded rod is in threaded connection with a threaded pipe matching with the threaded rod. The winding device used for spinning silk yarn bundling can fix a winding reel effectively through arranging a neck and matching with a fixture block, so that the conditionof random movement of the winding reel during the using process can be prevented; a positive and negative rotation motor can drive the threaded pipe to rotate effectively by arranging the positive and negative rotation motor and matching with the threaded rod, the threaded pipe, a first gear and a second gear; the threaded pipe can drive a fixing rod to move through the threaded connection with the threaded rod; the winding device is beneficial to replacing the winding reel quickly; the device is conveniently used; and the device provided by the invention solves the problem that the current winding device used for spinning silk yarn bundling is not convenient to use.

The invention discloses a computer case which can efficiently dissipate heat and is excellent in protection performance. First openings are formed in the two sides of the machine box, a second openingis formed in the other side of the machine box, a power mechanism is arranged on one side of the top in the machine box, a first synchronous belt is arranged on the power mechanism, a reciprocating transmission mechanism is arranged on the first synchronous belt, and a vertical plate is arranged on the reciprocating transmission mechanism. According to the invention, the fan blades can do reciprocating motion during rotation; efficient flow of air is facilitated, the quality of air entering the case can be ensured; therefore, efficient and high-quality heat dissipation can be carried out in the case; and the rotating speed of the fan blades can be automatically controlled, adjustment can be conveniently conducted according to the use condition of equipment, the heat dissipation quality isbetter guaranteed, the temperature in the case is effectively reduced, protection can be effectively conducted, external collision can be effectively resisted, the stability of the case is guaranteed, and the service life of internal parts of the case can be prolonged.

The invention provides a horn antenna capable of realizing multiple polarizations. The horn antenna comprises a horn antenna body, a variable polarizer, a waveguide transition component and a rotatingmechanism for adjusting a relative angle between the variable polarizer and the waveguide transition component, and the horn antenna body, the variable polarizer, the rotating mechanism and the waveguide transition component are connected in sequence. The horn antenna has the beneficial effects that: a combined structure of the horn antenna body, the variable polarizer, the waveguide transition component and the rotating mechanism used for adjusting the relative angle between the variable polarizer and the waveguide transition component are designed, the relative angle between waveguide transition component and the variable polarizer is changed through the rotating mechanism, the polarization properties of electromagnetic waves in the conical horn are changed, switching of the working modes of linear polarization, left circular polarization, right circular polarization and elliptical polarization can be achieved, and the polarization switching efficiency is improved.

The invention discloses a printer which comprises a shell body, a display screen, a central controller, a control signal input part, a data collecting part and a printing executing part. The display screen is arranged on the shell body. The central controller is used for receiving a control signal of the control signal input part. The data collecting part and the printing executing part are controlled through the central controller. The control signal input part is used for receiving the control signal of an operator and transmitting the control signal to the central controller. The data collecting part is used for collecting printing data under control of the central controller. The printing executing part is used for receiving printing orders of the central controller and the printing data and carrying out printing on the printing data. The printer is simple in configuration and convenient to use.

The invention discloses a cooking utensil. The cooking utensil includes an outer shell, a connection part, an upper cover and a positioning structure; the connection part is connected to the outer shell and can rotate around a horizontal rotational axis relative to the outer shell; the upper cover is connected to the connection part and can move between an opening position and a closing position along with rotation of the connection part; and the positioning structure is arranged on the upper cover, the positioning structure is in an unlocking state when the upper cover is in the closing position and is in a locking state when the upper cover is in the opening position, and the upper cover can rotate relative to the connection part when the positioning structure is in the unlocking state and can be locked relative to the connection part when the positioning structure is in the locking state. The cooking utensil can prevent the upper cover from turning at will in the opening state.

The invention discloses a semi-automatic fish feed feeding device capable of adjusting feeding point. The device comprises a case; a lower end of the case is connected to an upper end of a taper hopper; a lower end of the taper hopper is connected with a feed inlet on a top end of a cylinder discharging housing; the width in the back and forth direction inside the taper hopper decreases graduallyfrom up to down; a drive shaft is installed inside the cylinder discharging housing; a stepping motor drives spiral blades to rotate through a drive shaft; fish forage is driven to the cylinder housing by the spiral blades; the blades are driven to rotate by a reducer motor through the rotating shaft; the fish forage is thrown out from the discharging port at the front end of the side of the cylinder housing by the blades. The semi-automatic fish feed feeding device capable of adjusting feeding point improves the labor efficiency of the worker. The planar bearing allows the cylinder discharging housing to be rotated, and the position of the discharge port at the front end of the cylindrical housing changes to change the feeding point. Fish feed is evenly fed to improve worker productivity.

The invention discloses a cable reel which comprises a supporting fame, a spindle, transverse blocks and two round plates, wherein the round plates are fixed on the spindle, a plurality of transverse blocks are fixed between the two round plates at intervals to form cable winding areas, and the spindle is arranged on the supporting frame to achieve suspension rotation. The cable reel has the advantages of being simple in structure, easy to use and cable of collecting and releasing cables efficiently and quickly and allowing head ends and tails of the cables to be found conveniently. Furthermore, the cable reel cannot rotate freely, so that the safety is good.