44results about How to "Won't trip" patented technology

The invention discloses a control method and device for an alternating-current solid-state power controller with a current limiting function. Through control over a first power tube and a second power tube of a main branch circuit and a third power tube and a fourth power tube of a current limiting branch circuit, when loads are normally started, natural zero-voltage turn-on and natural zero-current turnoff of the alternating-current solid-state power controller are achieved within a half of power source period, when large-capacity capacitive loads or rectifier bridge loads with large-capacity filtering capacitance are started, current-limiting charging is firstly performed through the current-limiting branch circuit, and then the alternating-current solid-state power controlled is completely turned on; when a short circuit fault happens on the alternating-current solid-state power controller, the main branch circuit is firstly turned off to perform fault current limiting, and then the alternating-current solid-state power controller is turned off. Natural zero-voltage on-off of the alternating-current SSPC is achieved within the half of the power source period, besides, the control method and device have a high-power current-limiting function, capacity for carrying the capacitive loads and the rectifier bridge loads of the alternating-current SSPC is improved, and anti-interference capacity of short circuit protection of the alternating-current SSPC is improved.

The invention provides an electronic weighing scale possibly thinned overall characterized by comprising a top plate component (20) allowing on the top surface thereof placement of an object to be weighed; and load cell units (30) supporting the top plate component (20) from the lower side thereof, wherein the top plate component (20) is provided with mounting holes (22) so as to extend therethrough in the thickness-wise direction, allowing therein attachment of cup components (40) each having an opening (42) opened downward, and each load cell unit (30)is attached inside each cup component (40).

The invention relates to an anti-tripping reverse buckling device. An oil pipe coupling is connected with an upper joint. An inner shoulder of a reverse buckling inner joint is hung on an outer shoulder of the upper joint. A reserve buckling external thread at the lower part of the reverse buckling inner joint is connected with a reverse buckling internal thread of the reverse buckling outer joint. The upper part of a lock sleeve is sleeved outside the upper joint. The upper joint is provided with a convex key. The interior of the lock sleeve is provided with a lock key groove, and the convex key is inserted in the lock key groove. The lock sleeve is fixed on the upper joint by a shearing pin. The interior of the reverse buckling inner joint is provided with a positive key groove, and the convex key is inserted in the positive key groove. A spring is arranged between the lock sleeve and the reverse buckling inner joint. The lower part of the lock sleeve is provided with a groove key, the upper part of the reverse buckling inner joint is provided with a groove key, and the groove keys are buckled. Under the action of the convex key, the lock key groove, the groove key on the lower part of the key sleeve and the groove key on the upper part of the reverse buckling inner joint, when the oil pipe is positively reversed, the connecting part of the reserve buckling external thread at the lower part of the reverse buckling inner joint and the reverse buckling internal thread of the reverse buckling outer joint can not trip, therefore, the invention can be matched with a tool for positively rotating oil pipes.

The invention discloses an intelligent electric floor heating device capable of preventing a leakage protector from tripping. According to the intelligent electric floor heating device capable of preventing the leakage protector from tripping, the aims of saving energy and being safe, low in use cost and high in intelligent humanization degree are achieved, any electric heating film below the feet can be started at will, heating time of each electric heating film can be controlled, and even if the electric floor heating device is mounted below floor tiles or the marble or concrete ground for use, tripping of the leakage protector can not be caused. A current-resistance piece above the electric heating films is connected with a power zero line end, a concave pit is arranged in a concrete layer above the central position of each electric heating film, a ceramic cylinder is mounted in each concave pit, a vibration sensor is mounted in each ceramic cylinder, and the electric floor heating device further comprises a master controller, electric heating film turn-on and turn-off switches which are equal to the electric heating films in number, and branch controllers equal to the electric heating films in number. The intelligent electric floor heating device is mainly used in the electric floor heating technology.

The invention discloses a stair with automatic lifting steps. The stair comprises supporting rods, a mounting frame and the steps; the supporting rods are symmetrically distributed on the two sides ofthe mounting frame, and a first opening is formed in the vertical face of the mounting frame; the steps vertically move in the first opening, and a lead screw and a guide rod are arranged in the first opening; the upper end and the lower end of the lead screw are rotationally connected with the horizontal face of the mounting frame; bosses are arranged on the steps and internally provided with threaded holes; the lower end of the lead screw and the bosses are connected through threads; the lower end of the guide rod and the steps are slidably connected; a motor is arranged on the supporting rod at the front end, and the output end of the motor is provided with a first bevel gear; the lower end of the lead screw is provided with a second bevel gear, and the first bevel gear and the secondbevel gear are engaged; and a pressure sensor is arranged between the steps and the horizontal face of the mounting frame. The disabled and people inconvenient to walk only need to stand on the stepsto walk forwards continuously, then the stair climbing process can be completed, the stair climbing problem is solved, the difficulty of stair climbing is reduced, and practicability is good.

The invention discloses a novel inflatable bathroom water retaining bar, and belongs to the technical field of construction engineering. Commonly, a bathroom needs to achieve wet-dry separation to ensure that goods are not eroded by water. Wet-dry separation can be achieved by additionally arranging a water retaining bar at the edge of a shower room. The novel inflatable bathroom water retaining bar is technically characterized in that an inflatable air bag can adjust the height of the water retaining bar through the inflating volume, a water level inductor is mounted on the air bag, the gas inflating volume can be increased or decreased according to the height of the water level, and the height of the water retaining bar can be adjusted through the inflating volume. The embedding depth ofa dovetail groove into the ground is equal to the height of the dovetail groove, so that flatness of the ground can be ensured when the air bag is not inflated. The novel inflatable bathroom water retaining bar has the following advantages that wet-dry separation of the bathroom is ensured, it is ensured that the goods cannot be eroded, the safety is improved by utilizing a pressure inductor, thewater retaining bar is fixed in a mode of gluing or embedment and can be replaced conveniently, the height of the water retaining bar is not fixed, the height of the dovetail groove can be adjusted through the inflating volume according to the water quantity, the dovetail groove is pre-buried underground, and therefore both attractiveness and convenience are achieved.

The invention discloses a snake bone connecting structure for an endoscope. The snake bone connecting structure comprises a plurality of snake bone joints, wherein a buckling structure and a limitingpart are arranged at the end of each snake bone joint, and each buckling structure comprises a first buckling structure body and a second buckling structure body; each first buckle structure and the corresponding second buckle structure extend outwards from the upper and lower peripheries of the two corresponding side surfaces of the snake bone joint, and the first buckling structure and the buckling buckle structure of the same snake bone joint form a rotation center; and each first buckling structure and the corresponding second buckling structure are asymmetrically arranged, and the adjacent snake bone joints are connected through a connecting pair of a hinge structure formed by matching the buckling structures with the limiting parts. The limiting has the beneficial effects that the snake bone joints can be connected together through cooperation of the buckling structures and the limiting parts, it is guaranteed that the whole structure of the snake bone joints is bent normally andcannot be disengaged, and the double-buckling-position structure enables the snake bone joints to be bent more stably.

The invention discloses a green extra-comfortable household mat comprising a foaming body and a fabric layer; the fabric layer is jointed with the foaming body. Because the foaming body is good in flexibility and good in rebound resilience, support force is regulated according to center of gravity of a person when the person steps on the soft foaming body, for making the person standing thereon fell comfortable and relaxed, and resisting fatigue; meanwhile, the fabric layer strengthens aesthetics of household mat, and further acts as a non-slip mat.

The invention discloses a cup cover convenient to disassemble for cleaning. The cup cover comprises a detachable cup cover screwed with the opening of a cup body, wherein the detachable cup cover comprises a middle cover, a cover plug and an outer cover; downward extending arc-shaped side walls are arranged on both left and right sides of a round top plate of the middle cover; a guide hole is formed in the middle part of the outer cover; the middle cover is arranged in the guide hole in a sliding manner from the top down; the cover plug is upwards inserted into the two arc-shaped side walls from the bottom end of the guide hole; the middle cover, the cover plug and the outer cover are combined via rotary snap joint structures to form the detachable cup cover. By using the cup cover convenient to disassemble for cleaning, the cup cover can be quickly assembled or disassembled, and the cup cover is simple in structure, firm and reliable in combination, and capable of avoiding the risk that the cup cover falls apart when in use.

The invention provides a safe hurdle suitable for practice. The safe hurdle includes hurdle racks, baffle plates, a hurdle cross bar, adjustment holes, adjustment buckles, bases and shock pads. The bottom end of each hurdle rack is fixed on the corresponding base. The adjustment holes and the adjustment buckles are arranged in the middle parts of the hurdle racks. A magnet is arranged on the top end of each hurdle rack. The hurdle racks fix the hurdle cross bar by magnet attraction. When the safe hurdle suitable for practice is used for hurdle learning or practice, since the hurdle cross bar and the hurdle racks are connected by magnetic force, a practitioner destroys the magnetic force between the hurdle cross bar and the hurdle racks if the practitioner hits the hurdle cross bar when striding the safe hurdle of the invention during the practice due to self-conditions or non-standard technical action, and the hurdle cross bar rolls off without hurting the practitioner. Moreover, the hurdle cross bar can only fall to a designated interval without tripping the practitioner because the blocking effect of the baffle plates, thereby greatly reducing the possibility of injuries to the practitioner and improves the confidence and enthusiasm of the practitioner.

The invention discloses a bathroom door frame automatic lifting anti-stumbling device, comprising a fixed plate, a sliding door is slidably arranged on one side of the fixed plate, the bottom of the sliding door is slidably connected with a bottom slide rail, and the sliding door is The top is slidably connected with a supporting track, and the top of the supporting track is provided with a door beam, and a side of the door beam close to the supporting track is provided with a plurality of tension springs, and support sleeves are arranged between the plurality of tension springs. The invention drives the rotating gear to rotate by rotating the chain, drives the screw rod at the bottom to rotate through the rotating gear, and then drives the pressing plate to move downward through the rotating ring, squeezes the telescopic sleeve at the bottom through the pressing plate, squeezes out the liquid inside the telescopic sleeve, and then the liquid It is delivered to the conduit through the spiral tube on the top of the pressure plate, which has the advantages of automatically lifting the threshold to prevent tripping, and automatically blocking the liquid to prevent it from flowing to other areas.

The invention provides a safety trampoline, which comprises jumping cloth and a frame, wherein the frame comprises a first bottom frame, a second bottom frame and a plurality of vertical pillars; thefirst bottom frame is fixedly connected to the upper ends of the vertical pillars; the second bottom frame is fixedly connected to the vertical pillars and is arranged under the first bottom frame; the outer contour of the second bottom frame is less than the outer contour of the first bottom frame and the second bottom frame is coaxial with the center of a first top frame; the jumping cloth covers the first bottom frame, and the jumping cloth is provided with a plurality of extension parts; the extension parts extend towards the second bottom frame, and the extension parts are arranged at intervals; the vertical pillars are inserted in gaps of the extension parts; tension springs are arranged around the outer side of the second bottom frame; the tension springs are arranged between the first bottom frame and the second bottom frame in an inclined mode; and one end of each tension spring is fixedly connected to the first bottom frame and the other end is fixedly connected to the corresponding extension part. According to the safety trampoline provided by the invention, users, who take exercises on the trampoline, cannot get stumbled by the springs, so that the safety performance ofthe trampoline is enhanced; and under the circumstance of a same area, the effective using area of the trampoline is increased.

The invention relates to an embedded type cartoon plastic floor tile. The embedded type cartoon plastic floor tile is characterized by comprising a floor tile body (1), wherein a cartoon outline tile (2) is embedded in the floor tile body (1); the upper surface of the cartoon outline tile (2) is leveled to the upper surface of the floor tile body (1); and the floor tile body (1) and the cartoon outline tile (2) are made by pressing different colors of waste and old rubber grains. By adopting the embedded type cartoon plastic floor tile, the attention of a child can be fully attracted, and the interest of playing is promoted; and the cartoon outline tile is leveled to the surface of the floor tile body, so that the surface of the floor tile is relatively flat without big bump, and the child cannot be stumbled; by adopting the waste and old rubber grains, the surface of the embedded type cartoon plastic floor tile has a certain roughness, thus the child is unlikely to be slipped in playing, and the safety performance is largely improved. Besides, the cartoon outline tile is embedded at the inner part of the floor tile body, the pattern cannot be disappeared by wear, so that the wear resistance is strong.

The invention belongs to the technical field of nursing articles for daily life and relates to an adjustable-illumination-intensity illuminating chamber pot powered by thin-film solar cells. The upper portion of a semitransparent plastic chamber pot body is provided with a handle, the front portion of the pot body is provided with a pot neck, the front end of the pot neck is provided with an opening, a cover can covers the opening, one end of the cover is provided with a soft plastic strap of the cover, and the other end of the soft plastic strap of the cover is fixed onto the pot neck. The thin-film solar cells mounted on the pot body are irradiated by indoor or outdoor light rays to generate currents which are inputted and stored in an electricity storage device through an electric lead. When using the semitransparent plastic chamber pot at night, an elderly person can stretch out to turn on an illumination intensity adjustment switch to switch on a circuit for delivering currents from the electricity storage device to an LED (light emitting diode) lamp, then adjust illumination intensity as needed to enable the LED lamp to illuminate the chamber pot and the surrounding environment, hold up the handle and uncover the chamber pot for urinating.

The invention discloses an electric welding machine facilitating winding of welding wires. The electric welding machine comprises a welding machine body, the front side of the welding machine body issequentially provided with display screens, adjustment switches, a heat dissipation window and welding wire insertion holes from top to bottom, and the left side of the welding machine body is fixedlyconnected with a winding device. The winding device comprises a connecting seat, the right side of the connecting seat is fixedly connected with the left side of the welding machine body, the middlepoint of the left side of the connecting seat is provided with a threaded hole, the interior of the threaded hole is in threaded connection with a threaded column, and the left end of the threaded column penetrates through the threaded hole and extends to the outside of the threaded hole to be fixedly connected with a supporting insertion rod. According to the electric welding machine, by arranging the winding device, semi-automatic winding of the welding wires is facilitated, so that the problem that as many welding wires are piled on the ground, it is difficult to distinguish the welding wires manually is solved, the labor of the workers is saved, the situation that the welding wires are worn on the ground or the wires are torn due to barriers is effectively avoided, the welding wires will not stumble passersby, the use safety is greatly improved, and use requirements can be completely met.