53results about How to "Does not affect up and down movement" patented technology

The invention relates to a wall-mounted digital television receiving antenna. The wall-mounted digital television receiving antenna includes a lifting column arranged at the outer side of a wall, a lifting seat arranged on the lifting column, an antenna frame arranged on the lifting seat, and an antenna arranged in the antenna frame; the lifting column includes side walls arranged in parallel at two sides of the lifting column; the inner sides of the side walls are provided with toothed bars, and the outer sides of the side walls are provided with guide grooves; the back of the lifting seat is provided with two engaged gears; the outer sides of the gears are engaged with the toothed bars; the upper side and lower side of the back of the lifting seat are provided with guide blocks; motors are arranged in the lifting seat; the back of the antenna frame is provided with a mounting column; the upper part of the antenna frame is provided with an assembling component; the antenna is fixed on the assembling component; two ends of the assembling component are rotatably connected with the inner side wall of the antenna frame; the assembling component is provided with a pull ring; and an end portion of the telescopic shaft of a telescopic cylinder is connected with the pull ring. The height, unfolding angle and inclination angle of the antenna can be adjusted very easily, the rainwater resistance of the antenna is strong, and the service life of the antenna is long.

The present invention provides a heald-frame height adjusting apparatus to make it possible to overcome the problems by providing a heald-frame height adjusting apparatus that easily adjusts the height of a heald frame and that reduces manufacturing costs of a shedding device, and that does not allow the shedding device to easily malfunction and that is suitable for high-speed vertical movement of the heald frame. A heald-frame height adjusting apparatus used in a shedding device including a drive transmission mechanism which is provided in accordance with each heald frame, which connects a reciprocating driving device and a heald frame with each other, and which is capable of changing a supporting height of the corresponding heald frame. The heald-frame height adjusting apparatus includes engaging means and raising-lowering means, the engaging means being engageable with and disengageable from the heald frame and being engaged with the heald frame when the height of the heald frame is adjusted before starting an operation of a loom, the raising-lowering means being placed at a securing portion of the loom and moving the engaging means vertically with respect to the securing portion.

The invention relates to an unpowered safe hook for a mechanical three-dimensional parking device, belonging to the field of mechanical parking device technology. According to the technical scheme of the invention, one side of the hook is provided with a connecting seat, the middle part of an operating rod is hinged on the connecting seat by a pin roll, the left end of the operating rod is equipped with a sliding chute, in normal operation, the right end of the operating rod shifts on the connecting seat upwards and downwards relative to a guiding plate, is slidably contacted with a working inclined plane on the hook, the hook is pushed from the connecting seat; the connecting seat is equipped with a pull rod which can shift upwards and downward relative to the connecting seat but not rotate, the pull rod is provided with a guide pin, the end part of which locates in the sliding chute on the operating rod; a spring is arranged on the pull rod, when an abnormal situation occurs, the pull rod shifts downward under the action of the spring, the operating rod is driven by the guiding pin to rotate around the pin roll thereof, so that the right end of the operating rod is separated from the hook. The safe property of the hook is improved, and the cost is reduced.

The invention relates to an automobile swing arm assembly of an independent suspension. The automobile swing arm assembly comprises a swing arm body, a ball pin and two bushings, wherein the ball pin and the swing arm body are fixedly connected through a bolt; the two bushings are in crimping fit with the swing arm body; a ball pin mounting clearance is formed in the swing arm body; a front swing arm and a rear swing arm are arranged at opposite positions of the swing arm body and the ball pin mounting clearance; the cross section of the front swing arm is I-shaped; S-shaped reinforcing ribs are arranged in the front swing arm; the cross section of the rear swing arm takes the shape of a groove; and the strength of the rear swing arm is greatly improved. According to the automobile swing arm assembly provided by the invention, an upper shoulder and a lower shoulder are additionally arranged in the front and rear of the ball pin respectively, and thus vertical force acted on the bolt and moment of the vertical force are transferred to the ball pin and the swing arm body; the rail end of a polished rod of the bolt penetrates into the ball pin mounting clearance which is formed in the front of the swing arm body, and thus stress on a polished rod and thread transition position of the bolt is reduced; and the functions of mounting a spiral spring, the ball pin, the front bushing, the rear bushing and a stabilizer bar connecting rod are integrated on one swing arm body, so that the structure is greatly simplified and the weight of the automobile swing arm assembly is reduced.

The invention provides a pen capable of continuously sucking ink. The pen capable of continuously sucking the ink comprises a pen point and a pen holder, wherein a pen tongue is arranged in the pen point and connected with a pen tip; a one-way valve capable of enabling the ink to enter the pen holder from the pen point is arranged at the lower end of the pen holder; the one-way valve is arranged in a one-way valve body; a piston device is arranged on the upper part of the pen holder; an exhaust channel is arranged between the pen point and the pen holder; and the piston device is fixed througha corresponding piston fixing device. According to the pen capable of continuously sucking the ink provided by the invention, under the condition that the pen is not inverted, a piston rod button isrepeatedly pressed down and loosened, air exhausting and ink sucking can be continuously carried out, only one hand is needed for operation, and the convenience in use is achieved; and more ink is stored, so that the service life is long.

The invention relates to an obstructive piston type particle damper. According to the technical scheme, the lower portion of a guide rod (8) is fixedly connected with a screw hole in the closed end of a damper shell (3) through a thread, and the lower end of the guide rod (8) is fixedly connected with a base through a thread. The upper end of a piston rod (1) penetrate a cover plate (6) and a damper cover (2) to be connected with an external mechanical vibrating system, and the upper portion of the guide rod (8) is movably sleeved with the lower portion of the piston rod (1). A cavity below the cover plate (6) is filled with particle damping materials (7). The piston rod (1) is a whole formed by a rod body and a rotary body, and the rotary body is a sphere or a spheroid or a rhombohedron. A round hole is formed in the lower end face of the piston rod (1) inwards along the axis, and the diameter of the round hole and the guide rod (8) are in clearance fit. The obstructive piston type particle damper is simple and reliable in structure, convenient to manufacture, low in cost, stable in damping effect and wide in application range, can generate large damping and adjust the magnitude of the damping, is suitable for vibration attenuation of periodic vibrating equipment, and is also suitable for vibration attenuation of impact vibrating equipment.

The invention discloses a plant protection unmanned aerial vehicle with convenient medicine box installation and capability of reducing the vibration of a medicine box. The plant protection unmanned aerial vehicle with convenient medicine box installation and capability of reducing the vibration of the medicine box comprises an unmanned aerial vehicle body, wherein the left side of the lower surface of the unmanned aerial vehicle body is fixedly connected with a vertical plate, the lower surface of the vertical plate is fixedly connected with a bottom plate, the upper surface of the bottom plate is fixedly connected with the lower surface of a base plate through two damping devices, and the two damping devices are separately positioned on the left and right sides of the upper surface of the bottom plate. According to the plant protection unmanned aerial vehicle with convenient medicine box installation and capability of reducing the vibration of the medicine box, by arranging a first extrusion plate and a second extrusion plate, people rotate a handle to drive a threaded rod and a rotating shaft to rotate, and the threaded rod moves leftward to drive the second extrusion plate to move leftward through a rotating device, so that the medicine box can beconveniently fixed to the base plate, and the elasticity generated when two first springs are squeezed is used for damping the medicine box through two movable rods and the base plate, thus convenience is brought to people in installing the medicine box, and the vibration of the medicine box is reduced.

The invention discloses a spring compressing machine facilitating compression quantity detection and used for a spring. The spring compressing machine comprises a base plate, vertical plates are fixedly connected to the left and right sides of the upper surface of the base plate, the upper surfaces of the two vertical plates are fixedly connected to the lower surface of a transverse plate, a threaded cap is clamped to the upper surface of the transverse plate, a threaded column is in threaded connection to the interior of the threaded cap, and the top end of the threaded column is fixedly connected to an output shaft of a motor. According to the spring compressing machine facilitating compression quantity detection and used for the spring, the motor is arranged, the output shaft of the motor rotates to drive the threaded column to rotate, under the effect of the threaded cap, the threaded column downwards moves to drive a rotating shaft, a bearing and a movable plate to move downwards,the movable plate downwards moves to extrude the spring, at the time, the displacement of compression of the spring is measured through a displacement sensor and is processed through a processor to be transmitted to a display screen, a person can accurately know the compression quantity of the spring, and convenience is brought for the person to measure the compression quantity of the spring.

The invention discloses a detection device for nitrogen dioxide and a use method thereof, which belong to the field of environment detection. The device comprises a shell; an air inlet pipe is embedded in the side wall of one side of the shell; and an air extractor is arranged in the air inlet pipe. The nitrogen dioxide in the air can be detected, nitrogen dioxide is determined by using a naphthalene ethylenediamine hydrochloride spectrophotometric method, the detection result is more visual and accurate, the absorption liquid can be replaced, and therefore, the device can be repeatedly used and has enough service life; the hemispheroid shell is driven by a driving motor to rotate, the hemispherical shell is used for blowing air into the volumetric flask, the air absorption speed is increased, the reaction efficiency is improved, the pressing plate is driven to move downwards through rotation of the screw rod and limitation of the telescopic rod, the pressing plate presses a silicone tube to the bottom plate, circulation of the silicone tube is blocked, the situation that a solution is sucked back is prevented, and the whole device is simple in structure, low in cost, high in stability and capable of being repeatedly used.

The invention discloses a method and device for adjusting the flow of underground distributed water in an up and down reciprocating motion manner. The method comprises the following steps of: realizing the reciprocating motion of an adjusting device under a shaft by using a control motor powered by an electric cable for controlling the closing and opening of a locating detent; adjusting the flow of a water distributing mandrel by using an adjusting motor powered by the electric cable; placing the adjusting device under the shaft by replacing the traditional suspension cable with the electrical cable, powering the motors by using the electric cable, and simultaneously realizing the real-time monitoring on underground data. The device is formed by improving a first generation storage type product and is not used yet in the technical field of water flow adjustment of hollow shafts. According to the method, the electrical control is carried out by adopting the brushless motors and the locating detents and replaces the control mode of the traditional mechanical timer so that operating personnel can control the locating detent arranged under the shaft on the ground in a long-range manner, and the reciprocating motion of the adjusting device is realized. By adopting the method and device, the adjusting efficiency is greatly improved, the repetitive work is avoided, the working time is greatly saved, and the working efficiency is improved.

The invention provides a book information acquisition device. The acquisition device is placed in a library; books in the library are provided with two-dimensional codes authenticated by the library;a borrower borrows the books by himself/herself through the acquisition device; books enter the inner part through a book inlet with the self-locking function. Books are scanned by an inspection sensor on the inspection conveyor belt; an auxiliary sensor corresponding to the checking sensor is used for identifying and screening the books; when the book information is input correctly, the book canbe conveyed to the book outlet through the conveying device, the borrower can take away the book, and when the book information is input incorrectly, the book enters the collecting opening through thecollecting conveying belt and is taken away by a book manager, so that an anti-theft effect is achieved.

The invention belongs to the technical field of PVC pipes, and particularly relates to a raw material stirring tank for PVC pipe machining. A tank body is included. A stirring shaft is arranged at themiddle portion in the tank body and provided with a plurality of fixedly-connected stirring rods. A stirring motor is arranged at the center position of the bottom of the tank body. An output shaft is arranged at the output end of the stirring motor and movably penetrates through the bottom of the tank body. The bottom of the stirring shaft is provided with a connecting groove movably connected with the output shaft. The part, located in the tank body, of the output shaft is provided with a plurality of limiting blocks, and the side wall of the connecting groove is provided with a plurality of limiting grooves matched with the limiting blocks. The outer side wall of the upper end portion of the stirring shaft is provided with a reciprocating thread, the part, located on the outer side ofthe reciprocating thread, of the stirring shaft is provided with a connecting block connected with the reciprocating thread, the outer side of the connecting block is provided with a plurality of fixing rods, and the fixing rods are fixedly connected with the inner wall of the tank body. The stirring efficiency of raw materials in the tank body is improved, stirring is more thorough, and the subsequent product quality is improved.

The invention discloses a fixing device for hollow shaft processing equipment. The fixing device comprises guide columns, an upper processing mechanism, a lower movable table and a support mechanism;four guide columns are vertically fixed on the ground to form a cube structure; the lower movable table is sleeved on the guide columns, and is connected to a connecting hose for driving the lower movable table to move up and down; the support mechanism is detachably mounted on the front surface of the lower movable table, and can support and limit the connecting hose; the support mechanism includes mounting plates, a support assembly and a rolling assembly; and two mounting plates are fixed on the front surface of the lower movable table through screws and positioned on the two sides of the connecting hose. Through arrangement of the support mechanism, the longer connecting hose can be supported and limited to prevent the surface wear caused by continuous friction; meanwhile, the connecting hose is prevented from overlapping and pressing under the movable table to damage; and the whole mechanism does not influence normal work of the whole processing equipment.

The invention discloses a same-side multi-head resistance welding machine for a frame and a skin. The same-side multi-head resistance welding machine comprises a shell, a welding part and a lower cantilever assembly, wherein the welding part comprises a plurality of electrode tips; the lower cantilever assembly comprises a bearing platform; the welding part is arranged on the upper part of the shell, and the lower cantilever assembly is arranged at the lower part of the shell; the plurality of electrode tips are all arranged right above the bearing platform; and the welding part comprises a first mounting seat, a sliding groove plate, a first air cylinder seat, first air cylinders, first piston arms, an upper electrode block, a lower electrode block, middle electrode blocks, electrode armsand the electrode tips. The same-side multi-head resistance welding machine has the advantages of same side multi-head welding, the electrode tips are arranged on the upper part, no electrode heads is arranged at the lower part, the lower part is provided with the bearing platform for bearing and supporting, single-side welding is carried out only on the upper part, a welding spot is formed onlyon the single side, and the welding spot cannot be formed on the back surface, so that a grinding step after welding is finished is not needed, and the time and the labor are saved.