38results about How to "No rolling" patented technology

A safe and intelligent pram with an electronic storage box is characterized in that the safe and intelligent pram with the electronic storage box comprises a controller module, an electronic storage module, a gesture detecting module, a vehicle body turnover preventing module, a driving module, a braking module, a speed detecting module, a voice control module, a voice playing module, a power supply module and a pram body. The controller module is connected with the electronic storage module, the gesture detecting module, the vehicle body turnover preventing module, the driving module, the braking module, the speed detecting module, the voice control module, the voice playing module and the power supply module. The safe and intelligent pram with the electronic storage box can be used for storing articles and can detect the gesture of a baby in real time; the pram body can be actively prevented from turning over; the speed of the pram is controlled and reasonably limited; and the pram can automatically perform braking, and it is guaranteed that the pram will not slide.

The invention relates to a ring-shaped suctioning nozzle applied in dust suctioning on the internal surface of a dust cage and belongs to the technical field of dust removing equipment. The ring-shaped suctioning nozzle comprises a supporting drum (1) and a front disc (3), wherein the front disc (3) is fixedly arranged at the front side of the supporting drum (1); and a ring-shaped slotted suctioning port (4) is formed between the supporting drum (1) and the front disc (3). The ring-shaped suctioning nozzle has the advantages that fine dusts on the internal surface of the dust cage can be thoroughly cleared and suctioned by one time, no rolling is caused to the fine dust, and no damage is caused to filtering materials, so that the efficiency and the effect of dust suctioning are greatly improved.

The invention discloses a start control method and device for a switch reluctance motor. The method comprises the steps of acquiring the current torque signal and the current rotating speed signal outputted by the switch reluctance motor which is in a rotating speed control mode during starting; treating a PID regulator as a speed closed-loop regulator G1, wherein the parameters are K11, K12 and K13; adjusting the PID regulator as a current closed-loop regulator G2, wherein the parameters are K21, K22 and K23; treating one function / transfer function as a parameter adjusting module G; adjusting the parameters of the G1 and the G2 according to the current output torque T and the rotating speed v of the switch reluctance motor; expressing through a matrix equation which can be shown as [K11K12K13; K121K22K23]T=G([T v] T). The control method comprises an acquiring module SA, the speed closed-loop regulator G1, the current closed-loop regulator G2 and the parameter adjusting module G. With the adoption of the method and the device, the operation is smooth while starting on a flat road or starting on a slope, and slipping, jittering and colliding can be avoided.

The invention relates to an intelligent type multi-suction-hole air returning filter. The intelligent type multi-suction-hole air returning filter comprises a fixed dust cage (1), wherein a dust collection trolley (2) capable of doing reciprocating motion from left to right is arranged on the rear side of the fixed dust cage (1); the dust collection trolley (2) is provided with a plurality of movable suction boxes (2.2) from top to bottom; each movable suction box (2.2) is provided with an annular suction nozzle (2.3.4) which can do reciprocating motion from front to back; a vertical air channel (7) is arranged on the dust collection trolley (2); the rear ends of the plurality of movable suction boxes (2.2) are communicated with the vertical air channel (7); a transverse air channel (4) is arranged under the vertical air channel (7); and the lower end of the vertical air channel (7) is communicated with the transverse air channel (4). The intelligent type multi-suction-hole air returning filter provided by the invention has the advantages of small occupying area, large filtering area, high filtering efficiency, simplicity in maintenance, convenience in installation, simplicity in machining, low product cost and the like.

The invention relates to forming devices and testing methods, in particular to a light foam ball test piece forming device and a testing method, and belongs to the field of road and bridge construction. The problems that the appearance of a light foam ball test piece formed by an existing light foam ball production forming process is defective, and the homogeneity is not good are solved. The light foam ball test piece comprises a top cover, an upper half ball mold, a lower half ball mold and a positioning pin. The upper half ball mold and the lower half ball mold are sequentially connected from top to bottom; a grouting opening is formed in the upper surface of the upper half ball mold; the top cover covers the grouting opening; and the lower end of the positioning pin penetrates through the top cover to be inserted into a positioning pin hole in the upper surface of the upper half ball mold.

The no-breaking bucket lifter has a motor on the frame to draw the rope pulley via the gear box for the elevating bucket to move up and down. During ascent, the switch pin of the elevating bucket opening mechanism is blocked off by the switch board on the frame, the gate of the elevating bucket is opened for the material to flow out from the elevating bucket through the discharge bin, and the upper limiting switch stops ascending before the motor rotates reversely after some delay. During descent, the switch pin of the storing bucket opening mechanism is blocked off by the switch board on the elevating bucket, the gate of the storing bucket is opened for material to flow into the elevating bucket, the lower limiting switch stops descending before the motor rotates forwards after some delay. The process is repeated for elevating material continuously without breaking material.

The invention discloses a crush-free elevator which comprises an elevator shell body, dragging chains, chain wheel components and a hopper, wherein a feeding inlet and a feeding outlet are arranged on the elevator shell body, corresponding chain wheel components are arranged on inner walls of two sides of the elevator shell body, one dragging chain is connected with each side chain wheel component in a hinged mode, the hooper comprises a ladder-shaped hooper body, suspension shaft bosses which are combined with the ladder-shaped hooper body into a whole structure are arranged on two side walls of the ladder-shaped hooper body, suspension shafts are respectively embedded inside the suspension shaft bosses, the two suspension shafts are connected with the dragging chains on the inner walls of the two sides of the elevator shell body in a movable and inserted mode, and a clamp platform which is generally a triangular prism in shape is arranged on an end surface at the front end of the ladder-shaped hooper body. The crush-free elevator has the advantages of being high in filling coefficient, large in lifting capacity, and capable of saving energy and cleaning materials conveniently. The materials are just put in, after lifting, the materials flow out from the feeding outlet, no grinding and no striking happen, so that the materials are free of crush, a crush rate is reduced, and economic effects are obvious.

The invention discloses an anti-rolling device for battery cars used in shield tunneling construction, and belongs to the field of subway shield tunneling construction. An anti-rolling device for battery cars used in shield tunneling construction, comprising a track, a feeding car is arranged above the track, a screw groove is opened on the outer wall on the left side of the fixing plate, a screw rod is arranged in the screw groove, and the outer wall of the screw rod is symmetrically sleeved front and back There are two supporting feet, the front and rear ends of the fixed plate are provided with a limit slot, the inner wall on the right side of the limit slot is provided with a placement slot, the adjustment component is arranged in the placement slot, the movement plate is provided in the limit slot, and the bottom surface of the outer end of the movement plate is provided. There is an auxiliary clamping component. By setting the support feet, when the feeding car stops, the screw rod is rotated by turning the hand, so that the screw rod drives the threaded support feet to move. Since the outer wall of the screw rod is provided with external threads that rotate in the opposite direction, The two supporting feet are moved to both sides, so that the ends of the supporting feet are pressed against the inner wall of the track to generate frictional force, so that the stopped feeding cart can be kept stable and avoid slipping.

The invention relates to a movable suction box, and belongs to the technical field of dust collection equipment. The movable suction box comprises a box body (1), wherein the front end of the box body (1) is sealed, and a connection opening (7) is formed in the rear end of the box body (1); a linear guide rail (2) is arranged in the box body (1) along the horizontal direction; a sliding air pipe (3) is arranged on the linear guide rail (2); the front end of the sliding air pipe extends out of the box body (1) and is provided with an annular suction nozzle (4); a cylinder (5) is arranged between the box body (1) and the sliding air pipe (3) or the annular suction nozzle (4) in a connection manner; under the action of the cylinder (5), the sliding air pipe (3) can do reciprocating motion on the linear guide rail (2). The movable suction box disclosed by the invention is simple in structure and can meet the requirements on pipeline sealing during quick moving of the suction nozzle and the service life.