38results about How to "Reduced counter force" patented technology

The invention relates to a fluid absorbent sanitary product. The fluid absorbent sanitary product comprises a surface layer, a bottom layer and an absorbent core located between the surface layer andthe bottom layer, wherein the surface layer is made of a body fluid permeable material; the bottom layer is a waterproof layer; the absorption core comprises a front wing and a rear wing; the absorption core is also provided with a middle convex core which is located between the front wing and the rear wing; the rear wing is provided with a second U-shaped opening which is arranged in the length direction of the absorption core; and the opening direction of the second U-shaped opening is opposite to the direction of the middle convex core. The fluid absorbent sanitary product provided by the invention has the following effects: the fluid absorbent sanitary product can maintain a preset shape after being pressed; the reverse acting force generated by the absorption core at the second U-shaped opening is small; friction to a wearer is reduced; the stability of an absorption area is maintained; a body fluid is prevented from leaking through a femoral seam; and leakage of the body fluid isnot likely to happen to the wearer in the using process.

This invention provides a novel solution for an optimally powered crank for a human-powered vehicle, such as a bicycle. This invention includes a novel system and method to optimize the length of each crank arm throughout the revolution of the crank assembly. First, a crank arm assembly is attached to the bicycle's existing spindle assembly. The crank arm assembly includes a rail section that is fixed at one end to the mounting section of the crank arm assembly. Next, the opposite end of the rail section is attached to the sliding section of the crank arm assembly. The sliding section of the crank arm assembly also includes a feature that allows the sliding section to collapse and expand along the rail section. The crank arm assembly also includes at least two track rollers mounted to the side of each sliding section designed to reduce friction and counter inertial forces associated with the crank arm assembly sliding along the tracks. Next, the assembly includes two tracks mounted on each side of the frame. The tracks are used to control the length of the crank arms at each angular position. Finally, the shape of each track is designed to coincide with the optimum crank arm length at the various angular positions as the crank arm rotates through a complete revolution.

The invention discloses a high-stability rammer compactor for building construction in the technical field of engineering auxiliary equipment. The rammer compactor comprises a stabilizing mechanism, stable supporting frames, a compaction assisting frame, a balance weight centrifugal ball and a contraction spring. According to the high-stability rammer compactor, through the set of the stabilizingmechanism is set, when a ramming device is subjected to stress in an unstable direction, the inclination amplitude of the ramming device is greatly reduced through the reverse anti-toppling capabilityof the stabilizing mechanism, so that the stability of the rammer compactor during ramming is improved; through the set of the stable supporting frames, the stable supporting frames make contact withthe ground when earth ramming is conducted, certain supporting is conducted between equipment and the ground, the equipment is prevented from toppling over, the stability of the equipment during earth ramming is improved; through the set of the compaction assisting frame, the balance weight centrifugal ball and the contraction spring, the downward pressing capacity is enhanced and rammed earth strength is improved when the equipment rams earth downwards; and when the equipment moves upwards, the upward moving amplitude of the equipment is reduced, the reverse acting force is reduced, the stability of the equipment is improved, and the rammer compactor has the beneficial effects of being high in earth ramming capacity and high in stability.

A brake pedal simulator, a vehicle braking system and a vehicle are provided. The brake pedal simulator includes a brake pedal, a booster motor, an assembly portion, a first elastic member and a second elastic member disposed on one side of the assembly portion in the axial direction and partially overlapping with each other in the axial direction, and a thrust structure hinged to the brake pedaland cooperating with the first elastic member to sequentially drive the first elastic member and the second elastic member to telescopically retract in the axial direction. The elastic resilient member provides a pedal preset force to the brake pedal, The output shaft of the booster motor is cooperated with the first elastic member through a rack and pinion mechanism so as to be able to provide assistance to the thrust structure, the first elastic member is compressed through the thrust mechanism in a first working state, and the first elastic member and the second elastic member are compressed synchronously through the cooperation of the thrust structure and the booster motor in a second working state. This provides a reliable braking feel of the brake pedal and simulates an accurate brake pedal force, and has the effects of good operation stability and corresponding quick brake pedal.

The invention discloses watered sandy stratum earth pressure balance shield residue earth flattening equipment for tunnel construction, relates to the technical field of residue earth flattening equipment, in particular to the watered sandy stratum earth pressure balance shield residue earth flattening equipment for tunnel construction. The watered sandy stratum earth pressure balance shield residue earth flattening equipment for tunnel construction comprises a middle pressure wheel, an underframe plate and nozzles; the left side of the middle pressure wheel is provided with an auxiliary fixedplate; the left side of the auxiliary fixed plate is provided with a back pressure wheel; the front end of the underframe plate is provided with an auxiliary gas tank; the underframe plate is arranged at the front end of the auxiliary fixed plate; one end, far away from the underframe plate, of the auxiliary gas tank is provided with an auxiliary drive motor; and the left side of the auxiliary drive motor is provided with an auxiliary connection rod. According to the watered sandy stratum earth pressure balance shield residue earth flattening equipment for tunnel construction, a dust mask canprevent external dust from entering into a guide rod, and oil immersed sponge can effectively provide a lubrication effect to a push rod so as to lighten mechanical abrasion between the guide rod andthe push rod and be capable of effectively lightening the impact force between the guide rod and the push rod.

A brake pedal simulator, a vehicle braking system and a vehicle are provided, wherein the brake pedal simulator includes a brake pedal, a booster motor, an assembly part for fitting to a vehicle body,a first elastic member and a second elastic member axially disposed on one side of the fitting portion and connected to each other, and a thrust structure hinged to the brake pedal and cooperating with the first elastic member to drive the first elastic member and the second elastic member while telescoping in the axial direction. The first elastic member and the second elastic member cooperate together to provide a pedal preset force to the brake pedal, and the output shaft of the booster motor is cooperated with the second elastic member through a screw mechanism to be able to provide a booster force for driving the thrust structure. The invention provides a reliable braking feel of the brake pedal and simulates an accurate brake pedal force, and has the effects of good operation stability and corresponding quick brake pedal.

A brake pedal simulator, a vehicle braking system and a vehicle are provided, wherein the brake pedal simulator includes a brake pedal, a booster motor, an assembly part for fitting to a vehicle body,a first elastic member and a second elastic member disposed axially on one side of the fitting portion and at least partially overlapping with each other in the axial direction, and a thrust structure hinged to the brake pedal and cooperating with one end of the overlapping portion of the first elastic member and the second elastic member to be capable of driving the first elastic member and thesecond elastic member while telescoping in the axial direction. The first elastic member and the second elastic member cooperate to provide a pedal preset force to the brake pedal, and the output shaft of the booster motor cooperates with the one end of the overlapping portion of the first elastic member and the second elastic member through a screw mechanism so as to be able to provide the boosting force to the thrust structure. This provides a reliable braking feel of the brake pedal and simulates an accurate brake pedal force, and has the effects of good operation stability and corresponding quick brake pedal.

The invention discloses a tomato storage isolation device which comprises a contact plate, a telescopic component and a fixed plate which are sequentially connected. The contact plate is parallel to the fixed plate, one end of the telescopic component is connected with the contact plate, the other end of the telescopic component is connected with the fixed plate, the telescopic component comprisesa mounting cylinder and a cylindrical air bag which are sequentially and coaxially connected, one end of the air bag is inserted into a center hole of the mounting cylinder, the other end of the airbag penetrates the center hole and is connected with the contact plate, and the air bag is compressed downwards, so that the contact plate can approach to the fixed plate. According to the device, airpositioned below the contact plate conveniently flows, so that the humidity of the bottom of a vegetable basket is reduced, bacterium breeding speed is reduced, vegetable rotting speed is reduced, the air bag is compressed and then deformed when the vegetable basket is placed, vegetables positioned in the vegetable basket are buffered, and bump and damage to the vegetables caused by excessive vegetable basket placing impact force are avoided.

The invention discloses an automobile steering system which comprises a pull rod, a steering gear driving the pull rod to move and a buffer device arranged between the steering gear and the pull rod.The buffer device comprises a buffer assembly connected between the steering gear and the pull rod and a locking assembly arranged on the buffer assembly and used for locking the buffer function of the buffer assembly. According to the steering system, the acting force of wheels reversely acting on the pull rod and the steering gear can be buffered through the buffer assembly, so that parts of thesteering system are effectively protected and the reliability of the steering system is improved; meanwhile, through cooperation of the buffering assembly and the locking assembly, driving of the automobile under various working conditions is facilitated, accurate steering under the working conditions of good road conditions or high automobile speed is facilitated, and buffering of the reverse acting force under the working conditions of bumpy road conditions and low automobile speed is also facilitated.

The invention provides an adjusting structure and a lamp. The adjusting structure comprises a supporting base, a rotating base hinged to the supporting base and an elastic piece. One end of the elastic piece abuts against the supporting base, and the other end of the elastic piece abuts against the rotating base. The lamp comprises a lamp pole, a light-emitting source installed at one end of the lamp pole, a connecting belt connecting the other end of the lamp pole and the supporting base and an adjusting structure. The rotating base is hinged to the supporting base, one end of the elastic piece abuts against the supporting base, and the other end of the elastic piece abuts against the rotating base. When the lamp pole is mounted on the rotating base, the light-emitting source drives the rotating base to rotate forwards under the action of self gravity, at the moment, the elastic piece is in a compressed state, and the light-emitting source is located at the lowest position. When a user pushes the lamp pole upwards and drives the rotating base to rotate reversely, the elastic piece elastically pushes the rotating base to rotate reversely under the action of resilience force, and the elastic piece provides power for reverse rotation of the rotating seat, so that reverse acting force of the user on the lamp pole can be reduced, the position of the light-emitting source is convenient and fast to adjust, and time and labor are saved.

The invention discloses an FPC capable of reducing the self-twisting stress, and belongs to the technical field of circuit boards. The FPC comprises a flexible substrate and a wiring layer arranged onthe flexible substrate. The flexible substrate comprises a horizontal part, a vertical part and a bending part connected with the horizontal part and the vertical part, wherein the width of the bending part is smaller than that of the horizontal part and that of the vertical part, so that a distortion stress acting on the end part of the flexible substrate is transferred to the narrower bending part. According to the invention, the width of the bending part of the flexible substrate is reduced, and corner structures with different angles are arranged at the inner side and the outer side of the bending part, so that the distortion stress generated at the joints where the horizontal part and the vertical part of the flexible substrate are connected with the connector is transferred to the narrower bending part, thereby reducing the distortion degrees of the horizontal part and the vertical part, enabling the connection areas among the horizontal part, the vertical part and the connectorto be more stable, and improving the reliability of a product in the use process.

The invention discloses a special-shaped sealing ring for a vacuum milling clamp for skin parts, and relates to the technical field of vacuum milling clamps in aircraft manufacturing. The special-shaped sealing ring comprises a bottom surface structure, a boss structure and a side surface structure, the boss structure is a transition structure between the bottom surface structure and the side surface structure, and one end of the side surface structure is connected with the boss structure; and the other end of the side surface structure is suspended and is provided with a chamfer, the bottom surface structure, the boss structure and the inner surface of the side surface structure form a middle hollow structure, and the inner side of the side surface structure and the inner side of the bottom surface structure form an angle of 48 +/-2 degrees. The invention further relates to a use method of the special-shaped sealing ring. The condition that in the clamping and part machining processes of a sealing structure after vacumm absorption, when a part is tightly attached to the molded surface of a clamp, the air leakage phenomenon does not occur, and the hole forming precision can meet the use requirement are effectively guaranteed.

A brake pedal simulator, a vehicle braking system and a vehicle are provided, wherein the brake pedal simulator includes a brake pedal, a booster motor, an assembly part for fitting to a vehicle body,a first elastic member and a second elastic member arranged at axially spaced intervals on both sides of the fitting portion and connected to each other, and a thrust structure hinged to the brake pedal and cooperating with the first elastic member to drive the first elastic member and the second elastic member while telescoping in the axial direction. The first elastic member and the second elastic member cooperate together to provide a pedal preset force to the brake pedal, and the output shaft of the booster motor is cooperated with the second elastic member through a screw mechanism to beable to provide a booster force for driving the thrust structure. This provides a reliable braking feel of the brake pedal and simulates an accurate brake pedal force, and has the effects of good operation stability and corresponding quick brake pedal.