42results about How to "No permanent deformation" patented technology

The present invention discloses a doorsill for a car, comprising a reinforcing plate of an lower doorsill, a reinforcing internal plate of the lower doorsill, a lower internal plate of a front column, a front bracket of the reinforcing internal plate of the lower doorsill, a middle bracket of the reinforcing internal plate of the lower doorsill and a back bracket of the reinforcing internal plate of the lower doorsill. The reinforcing internal plate of the lower doorsill is welded inside of the reinforcing plate of the lower doorsill via the front, middle and back brackets of the reinforcing internal plate of the lower doorsill. The lower internal plate of the front column is welded before the reinforcing plate of the lower doorsill. The thickness of the reinforcing plate of the lower doorsill, the reinforcing internal plate of the lower doorsill, the lower internal plate of the front column, the front bracket of the reinforcing internal plate of the lower doorsill and the back bracket of the reinforcing internal plate of the lower doorsill is between 1.1 mm and 1.3 mm. The thickness of the middle bracket of the reinforcing internal plate of the lower doorsill is between 1.4 mm and 1.6 mm. Each part is made from the cold rolled steel. The present invention can improve the security when the car has a side collision and reduces effectively the manufacture and use cost of the car.

The invention relates to a system for deviating part of the external panelling of a motor vehicle, in particular the motor bonnet or the boot lid during a collision, in order to reduce the impact energy of a person colliding with said deviated part on the exterior of the motor vehicle, by displacing the part in the opposite direction to that of the deviation. Said system comprises a device for deviating part of the outer panelling, which is engaged at least at one point on the part and permits a displacement of the part against the deviation direction if a person collides with said part. According to the invention, the deviation direction (2) is controlled in accordance with the moment, the point and / or the direction of collision, in such a way that depending on the moment, and / or point and / or direction of collision with the deviated part (M) of the external panelling, the deviation device (2) permits a displacement of the part (M) of the external panelling against the direction of deviation (a), or counteracts a displacement of this type, thus preventing the latter.

The invention relates to a digital railway vehicle cab framework which comprises a front-end framework, a cab sealing structure, a vehicle connecting seat, a coupler mounting seat and an anti-collision device, the cab sealing structure is welded and fixed to the front-end framework to form a front sealing integral structure, and the sealing integral structure is welded and fixed to the upper portion of the coupler mounting seat; the vehicle connecting seat is welded and fixed to the front portion of the coupler mounting seat, and the anti-collision device is fixed to the front portion of the coupler mounting seat through bolts. The framework has the characteristics of simple structure, high production efficiency and low cost. The cab is free of permanent deformation and mainly comprises the front-end framework, the anti-collision device, the coupler mounting seat and the like, the anti-collision device is connected with a vehicle body through bolts, and replacement after collision in later operation is facilitated.

The invention relates to a multifunctional pin taking-out device special for the replacement of a spring pin of an insulator during hot-line work, and is applied to the power industry. The multifunctional pin taking-out device comprises a main rod body which can be connected to an insulating operating rod, an impact hook, a bracket, a simplex elbow taking and placement fork, a pin striking hammer and a spring pin taking and placement clamp, wherein the impact hook consists of a hook rod, a hook rod mounting sleeve and a hook head; the hook rod mounting sleeve is detachably connected to the main rod body; the hook rod is arranged on the hook rod mounting sleeve; the hook rod and the hook rod mounting sleeve form a telescopic connecting structure; the hook head is arranged at the front end of the hook rod in a rotating way through a pin shaft; the bracket is assembled at a position behind the impact hook on the front part of the main rod body; the pin striking hammer and the simplex elbow taking and placement fork are fixed on the lower part of the bracket respectively; and the spring pin taking and placement clamp is assembled on the upper part of the bracket. The multifunctional pin taking-out device is rational, compact and practical in structure and convenient to operate; working efficiency can be greatly improved; the condition that power is required to be cut off for the conventional operation can be avoided; and economic benefits can be created, and social benefits can be improved.

The cleaning device 1 is provided with the brush roller 20 possessing a brush which abuts on the member to be cleaned 110 and has conductivity, and the image forming apparatus 100 possesses it. To provide a cleaning device by which excellent image forming is maintained by preventing it from being soiled with a foreign matter by excellently cleaning a member to be cleaned over a long term by enhancing the capacity of a brush roller for removing the foreign matter and an image forming apparatus for possessing it.

The invention discloses a knuckle bearing based slide joint. The knuckle bearing based slide joint comprises an outer lug plate, a knuckle bearing, a hinge pin and a middle lug plate. The outer lug plate comprises two side lugs arranged at an interval, an inner ring of the knuckle bearing fixedly sleeves one end of the hinge pin, and the other end of the hinge pin is fixedly connected with the middle lug plate. Opposite sides of the two side lugs are provided with slide portions protruding inwards respectively, a slide plate is fixed to each slide portion, the outer periphery of an outer ring of the knuckle bearing is provided with two parallel slide planes which are clamped between the two slide plates, and each of the two slide planes is in slide connection with the corresponding slide plate on the same side. The knuckle bearing based slide joint is mounted in a building structure, a mechanism connected with the outer lug plate and a component connected with the middle lug plate are capable of rotating mutually within a certain range and further capable of moving vertically and transversely, wind resistance and seismic resistance are realized, permanent deformation of the building structure is avoided, and safety of the building structure is guaranteed.

The invention relates to the technical field of sensing materials, in particular to a composite fiber and a preparation method thereof, a graphene flexible temperature sensing array and a preparation method thereof. The composite fiber of the present invention includes a polymer fiber layer, a graphene-polymer fiber composite layer and a graphene layer from inside to outside. The composite fiber of the present invention has excellent strain adaptability, no permanent deformation, and the fluctuation of resistance is kept within 1.5%, and the graphene flexible temperature sensing array prepared by it can satisfy temperature sensing and strain adaptability at the same time, It can provide close-fitting and accurate temperature measurement.

The invention relates to a detecting device for detecting the deformation of the oil and gas transmission pipeline, which is applied to the nondestructive detection of the oil and gas transmission pipeline. The detecting device comprises a main body, a guide leather cup, a measuring leather cup, a sensor stay bar, a leather cup tightening spring, a linear displacement sensor, a driving leather cup, an odometer wheels direct supporting arm, an odometer wheel, an odometer wheels oblique supporting arm and a measuring leather cup retaining ring. The main body is provided with an information storehouse and a battery storehouse. The leather cup tightening spring and the linear displacement sensor are uniformly arranged on the main body excircle. The detecting device of the invention can complete the deformation detection of the pipeline, and determine the deformation position of the pipeline, namely the detecting device is driven via pressure difference (oil, water or gas) and runs in the pipeline; the measuring leather cup clings the pipe wall and changes with the pipe wall; the change information is stored in a storage; two odometers on the detecting device measure the travel distance, and the odometer information is also stored in the storage; when the detecting device runs out of the pipeline, the information is taken out to process comprehensive analysis and calculation so as to realize the detection of the pipeline.

The invention discloses a device and method for determining the absolute reference zero point of a high-precision motor. The device includes a motor, a lead screw, a frame and a detection system. The static part of the frame is provided with spring steel protruding outward. The surface of the spring steel The resistance strain gauge is attached, the motor rotor is connected to the lead screw, and the load is set on the lead screw; when the load moves to the absolute reference zero position with the lead screw, the load contacts the spring steel, and the spring steel and the resistance strain gauge are deformed. The bridge circuit converts the change of the resistance value of the resistance strain gauge into the change of the voltage signal, and sets the detected voltage value at this time as the zero point voltage, which is used as a reference preset value when the motor returns to zero. The method of the present invention does not cause the voltage to reach the set value when the load does not touch the spring steel, so the error rate is low; it solves the zero point error and low accuracy of the current detection of mechanical stall current and the detection of the zero point position of the mechanical switch And other issues.

The invention discloses a pressure-resistant clamp. The pressure-resistant clamp comprises a clamp body fixed out of a cylindrical clamped body; an outer hoop sleeves the clamp body and is uniformly connected with a plurality of brace struts; and each brace strut is fixed on the outer hoop through an iron wire. According to the invention, since the clamp body is sleeved by the outer hoop and the plurality of brace struts are uniformly arranged on the outer hoop, the clamp can expand outwardly with gas while a gas container expands outwardly due to great pressure in the gas container, and a worker can rotate the brace struts to adjust the degree of tightness of the clamp when the pressure in the gas container decreases or when the gas container is free of gas, thereby realizing adjustment of the deformation degree of the gas container; thus, permanent deformation of the gas container is prevented, potential safety hazards are avoided, and the service life of the gas container is prolonged.