52results about How to "Avoid Crushing Injuries" patented technology

The invention discloses a seat belt retractor. The seat belt retractor comprises a self-locking device and a winding shaft; the winding shaft comprises a winding drum body, a force-limiting mandrel and a shaft end piece, wherein the winding drum body is used for winding a fabric tape, the force-limiting mandrel is arranged in an internal cavity of the winding drum body, and the shaft end piece is fixedly connected with the self-locking device; the force-limiting mandrel comprises a rotary part, a mandrel body and a locking part; the shaft end piece is in rotation-stopping connection with the locking part; one end of the winding drum body is in rotation-stopping connection with the rotary part; both the other end of the winding drum body and the shaft end piece are provided with pin holes and are in pin connection through a driving pin; the shaft end piece is fixedly or integrally connected with the self-locking device; and the mandrel body is a shaft piece, wherein two ends of the mandrel body can be relatively twisted so as to form angles of twist. The retractor is provided with the mandrel body which can be twisted and have a force-limiting function, so that after a seat belt is locked, a small section of fabric tape can be further released to exert a buffering function, avoid holding the body of a passenger too firmly, prevent the chest and abdomen of the passenger from being injured by extruding, and reduce and alleviate the injury to the neck of the passenger.

The invention discloses a rubber-tired road roller safety protection device for preventing people from being hit or rolled over. The safety protection device comprises protective frames used for insulating people from road roller rubber-tired wheels. The protective frames are arranged on the front sides of the road roller front rubber-tired wheels and / or the rear sides of the road roller rear rubber-tired wheels, and connected with a road roller body. The safety protection device can effectively insulate the people from the road roller rubber-tired wheels in the running process of the road roller, it is guaranteed that the pavement operating personnel is not injured by the road roller rubber-tired wheels, and the rubber-tired road roller safety protection device is simple in structure, convenient to use, high in practical value, and convenient to apply and popularize.

The invention discloses a rolling-free isolating device for a wheel. The rolling-free isolating device for the wheel is used for stopping direct contact between an object and a wheel in the wheel advancing direction by being arranged in front of, behind or on the side of the wheel and is used for automatically realizing continuous stopping or opening according to a stress condition; and that is tosay that the rolling-free isolating device is kept in a stopping state when the stress is less than a set value and the rolling-free isolating device is opened for the wheel to pass when the stress is larger than the set value; therefore, people or other objects needing to be stopped can be reliably and effectively prevented from getting under the wheel to suffer rolling injury; and for objects which can pass steps and so on, the rolling-free isolating device can be opened for the wheel to pass without hindering the normal running of a vehicle.

The invention relates to a servo motor stator assembly shaping tool which comprises a gland (1), an upper pressuring column (2) and a fixing lantern ring (3), wherein the outer side of the lower end of the gland (1) is a conical surface, the upper end of the gland (1) is connected with the upper pressuring column (2), the fixing lantern ring (3) is arranged under the gland (1), a fixing ring (4) is fixedly connected to the lower end of the fixing lantern ring (3), and the internal diameter of the fixing ring (4) is smaller than the internal diameter of the fixing lantern ring (3). The servo motor stator assembly shaping tool is simple in operation and safe to use, meanwhile avoids extrusion caused by a traditional integrated shaping tool on a stator core, saves time and labor, and greatly improves production efficiency.

The invention discloses a collision safety chair device with a collision threshold induction function and an operating method of the device. The device is composed of an elastic bi-stability structural component, a gear set, a horizontal H-shaped gear block, a connecting gear block, a connecting rod, a guide rail and a limiting device, wherein both ends of the elastic bi-stability structural component are connected with an automotive chassis, the middle point of the elastic bi-stability structural component is connected with the horizontal H-shaped gear block through the connecting rod, the horizontal H-shaped gear block forms a movement mechanism with single freedom through the gear set and the connecting gear block, and the chair can move along a bi-stability skipping direction through the mechanism. The operating method of the device is that the injury caused due to collision acceleration can be effectively relieved through the device under the counter-acting force of the elastic bi-stability structural component when the automobile generates collision. The collision safety chair device is a pure mechanical structure, fast in response, high in reliability, and strong in anti-jamming capability, and the injury of personnel in the front row in the automobile can be effectively avoided when the automobile generates direct impact or offset impact, thus the collision safety chair device is suitable for many types of automobiles.

The invention discloses an anti-pinch ticket evader injection access control card swiping device with a stretching and contracting function. The anti-pinch ticket evader injection access control cardswiping device structurally comprises a device body, a display screen, a cover plate, a card swiping area and a stretching and contracting clamping plate mechanism. The anti-pinch ticket evader injection access control card swiping device has the beneficial effects that an arranged clamping preventing structure is used so that when the leg of a ticket evading gate passing person is pinched, an anti-pinch plate receives the extruding force of the leg of the gate passing person so as to move inwards, a certain retreating time is provided for the gate passing person, the phenomenon that the leg of the gate passing person is subjected to mechanical stretching and contracting of the equipment and is seriously extruded and injured is avoided, and the personnel safety of the gate passing pinchedperson is improved; and due to the cooperation of a self air blowing structure and a tight pinch preventing structure, when the ticket evading gate passing person is pinched to retreat backwards and then directly moves forwards at the same time, under the repulsive effect between a soft magnetic piece and a magnetic plate embedded in the inner wall of the air bag, the air bag is in a shriveled shape, airflow in the air bag can be output outwards, strong airflow injection is generated on the leg of the ticket evading forward moving person, and the person can be prevented from evading the ticketand passing the gate.

The invention provides a bumper bracket and a bumper assembly with it, which relates to the technical field of bumpers and solves the problem that the existing heavy truck bumpers usually adopt hydraulic energy absorption and The honeycomb energy-absorbing structure, when a collision occurs, the joint area is relatively large, and it is easy to affect a large area, forcing the vehicle to be seriously damaged, and the energy-absorbing body is mostly set in the middle position, and it is difficult to cover the corner position, which is easy to cause The bumper is directly impacted, including the energy-absorbing shell; the left and right ends of the energy-absorbing shell are respectively fixed with vertical corner guards by bolts; the rear end of the corner guard and the horizontal insurance One end corresponding to the main body of the bar support is fixedly connected by bolts. In the present invention, because the lower end of the corner protector is fixedly equipped with a strong magnetic block whose lower end is inclined forward and downward, the tires are avoided from being damaged, and the driving safety is improved. Moreover, in order to avoid secondary falling off after adsorption, the supporting tray can play the role of receiving.

The invention relates to the technical field of physical therapy medical equipment, and particularly relates to an upper and lower limb rehabilitation physical therapy device which comprises a physical therapy support, wherein the physical therapy support is composed of an upper support, a cross beam and side plates, the upper support is vertically welded to the upper end of the physical therapy support, the four parallel side plates are vertically arranged at the lower end of the physical therapy support, the upper ends of the side plates are fixedly welded to the lower end face of the physical therapy support, and a gap between a pair of parallel adjacent side plates is arranged to be a rotating inner cavity. The physical therapy device has the beneficial effects that linkage of movement of the upper limb and the lower limb is achieved by arranging a pull rope, bending and rising of the lower limbs are achieved by pulling the pull rope through the upper limbs, the linkage balance of the movement of the upper and lower limbs is realized, the rehabilitation effect on the upper and lower limbs is greatly improved, the vertical resetting of the human body is realized under the action of a buffer spring and the gravity of the human body, the requirement on the force application on the human body is greatly reduced, and the device is suitable for the rehabilitation of surgical hands with inconvenience in force application.

The invention discloses a cantilever-type lifting medical stretcher which comprises a bed stand, a lifting frame and a lead screw feeding mechanism. Casters are arranged at four bottom corners of the bed stand, a support frame is arranged on one side of the bed stand, a cantilever connected with the lifting frame is arranged on the upper portion of the support frame, a sleeve connected with the lifting frame is arranged in the middle of the support frame, the lifting frame is provided with a power mechanism, the lead screw feeding mechanism is positioned in the front of the lifting frame, and the front end of the lead screw feeding mechanism is connected with a bed board. The lifting frame together with the sleeve can vertically move along the supporting frame and is applicable to sickbeds with different heights, and the lead screw feeding mechanism can effectively advance and draw back the bed board. By the aid of the cantilever-type lifting medical stretcher, a patient can be effectively shifted to another bed and transferred, the pain of the patient is relieved, and the working pressure of medical workers is relieved. The cantilever-type lifting medical stretcher is unique in creation, convenient to use and easy to popularize.

The invention discloses a rivet feeding mechanism for an automatic drilling and riveting system and a preparation process. The mechanism comprises a mounting plate, a rivet storage box, a conversion box, a rivet conveying barrel, a first ejection assembly and a second ejection assembly, the rivet storage box is arranged on the mounting plate, a vibration plate is arranged in the rivet storage box, and a conversion disc is arranged in the conversion box. A rivet clamping groove is formed in the conversion disc, an intermittent motor for providing power for the conversion disc is arranged on the mounting plate, the rivet conveying barrel is arranged at the lower end of the mounting plate, a connecting elbow is arranged at the lower end of the rivet conveying barrel, and the first ejection assembly is used for ejecting rivets in a first conveying groove into the rivet clamping groove. The second ejection assembly is used for ejecting the rivets in the rivet clamping groove into a second conveying groove. The rivet feeding mechanism is reasonable in design, capable of achieving the automatic and continuous rivet feeding effect and suitable for large-scale popularization.

The invention discloses a 3D glass forming die structure and belongs to the field of dies. The 3D glass forming die structure comprises a male die and a female die which are vertically arranged, wherein 3D glass is sandwiched between the male die and the female die; two grooves which are parallel to the side edge of the 3D glass and positioned on two sides of the 3D glass are formed in the male die; clamping angles corresponding to the two grooves are formed in the female die; limiting steps which are 0.03-0.05mm away from the highest point on a left / right side face of the 3D glass in the vertical direction are formed inside the grooves. The 3D glass forming die structure disclosed by the invention has the beneficial effects that the limiting steps are formed inside the grooves, so that the limiting steps can achieve effects of limiting two side edges of the glass so as to prevent the glass from swinging from side to side; however, since the glass is expanded while heated, the distancebetween the step plane and the highest point on a left / right side face of the 3D glass in the vertical direction is 0.03-0.05mm, imprint or debris appearing on the glass edges can be avoided.