40results about How to "To achieve the effect of self-locking" patented technology

The invention discloses a special composite geotechnical material for high-grade subgrades and a preparation method thereof, comprising a lower waterproof layer, a drainage board and an upper water-permeable layer, the lower waterproof layer and the upper water-permeable layer are connected through the drainage board, and the hydrophilic surface of the lower waterproof layer faces Down, the hydrophobic side faces up and contacts the lower drainage panel of the drainage board, and the hydrophobic side of the upper permeable layer contacts the upper drainage panel of the drainage board; Divert the water so that it enters the drainage board and discharges it through the drainage groove to reduce the pressure of groundwater on the subgrade and the damage of groundwater frost heave to the subgrade, so as to ensure the effect of road construction and use; at the same time, when the upper drainage panel and the lower drainage panel are under pressure When the support column is deformed, the arc-shaped side wall of the support column fits with the outer wall of the drainage protrusion and squeezes each other to realize self-locking, so that the volume of the drainage tank does not change after self-locking, ensuring the drainage effect. It has the characteristics of novel structure and strong practicability.

The invention provides an electronic device. The electronic device comprises a display, a mounting seat and a supporting frame, wherein the mounting seat comprises a fixed piece, a sliding piece and a pivoting piece; the fixed piece comprises a containing part, a first buckle part and a first extending part; the containing part is fixed on the display; the first buckle part and the extending part are located on the two opposite sides of the containing part; the extending part is provided with a guide rod; the sliding piece is provided with a guide groove; the guide rod is located in the guide groove in a sliding manner; the pivoting piece comprises a shaft part and a pivoting part; the shaft part is pivoted at the extending part and is provided with a first axis; the pivoting part is pivoted to the sliding piece and is provided with a second axis; the first axis is separated from the second axis; the supporting frame comprises a third buckle part and a fourth buckle part which are opposite to each other; the third buckle part is buckled at the first buckle part; and the pivoting part drives the sliding piece to relatively get close to the first buckle part so that the second buckle part is buckled to the fourth buckle part. By virtue of the electronic device, the supporting frame and the display can be assembled and detached easily by the operation of the pivoting piece, and thus the assembling convenience of a host, the display and the supporting frame is improved.

A fixing device for a train track that can be self-locked and is easy to confirm whether it is loose, including bolts, self-locking grooves, barb 1, mounting nuts, springs, push rods, fixing nuts, clamping blocks, barb 2, lower jacking blocks, Upper top block, fixed nail, alarm ring, movable block 1, ring pipe and movable block 2, self-locking grooves are provided around the bolt, the inner wall of the self-locking groove is fixedly connected with barb 1, and the outer thread of the bolt is connected with The fixed nut, the inner bottom wall of the fixed nut is fixedly connected with two barbs. This self-locking and easy to confirm whether the train rail fixing device is loose is used through the cooperation of the push rod and the clamping block. After the fixing nut is tightened, the push rod is pushed to make the clamping block protrude from the fixing nut and align with the barb. The snap connection makes the fixing nut and the bolt relatively fixed, thereby achieving the effect of self-locking, thereby effectively preventing the fixing device from loosening due to vibration and improving the safety of the track.

The invention relates to an adaptive positioning structure for a rail space attitude of a rail measuring instrument. In the process of measuring the gauge of the track gauge, there is no practical calibration device to check the verticality of the rail direction of the beam. The present invention includes a guide chute with the notch facing down, and a sliding shaft is arranged inside; one end of the sliding shaft is fixed on the wheel support, the bottom surface is provided with a fixed plate for the movable end of the gas spring, and two rails are connected to both sides of the rail and are parallel to and perpendicular to the rail. The other end of the gas spring is fixed on the fixed end fixed plate of the gas spring, and the fixed end fixed plate of the gas spring is hinged with a transmission flap and a transmission plate in turn. One end is provided with a transmission handle. The invention has a reasonable structure, pushes the two ends of the beam to the track through the gas spring, makes the measuring wheel close to the inner side of the track, ensures that the beam of the track measuring instrument is always perpendicular to the track, and improves the reliability and accuracy of the track measuring instrument in measuring the gauge. accuracy.

The invention relates to the technical field of spring processing, and discloses a mattress spring stress-relief annealing device, which includes a chassis, the four corners of the lower surface of the chassis are respectively connected to the tops of four groups of roller frames in rotation, and the bottoms of the roller frames rotate Rollers are connected, a motor frame is fixedly connected to the left bottom of the chassis, and the rear side of the motor frame is fixedly connected to the front side of the drive motor. The mattress spring stress relief annealing equipment, through the cooperating setting of the locking block, the locking groove and the inserting block, the chassis and the machine cover can be fixed to each other, and the coordinating setting of the high temperature resistant sealing strip and the sealing groove can make the chassis and the machine cover It achieves the effect of sealing and effectively prevents the heat in the chassis from overflowing. The locking block and the fixing plate achieve the effect of self-locking through the cooperation of the insert block and the second chute, and the heat preservation effect in the chassis is achieved through the setting of the insulation layer. , through the setting of the heating layer, the temperature in the chassis can be raised.

The invention relates to a pin roller bearing nut and screw rod pair. The pin roller bearing nut and screw rod pair comprises a screw rod and a nut, wherein the screw rod is externally provided with an outer thread; the pin roller bearing nut and screw rod pair further comprises a pin roller; the pin roller comprises a pin roller body; a roller head part of the pin roller body is in a cone frustum structure; a roller main body of the pin roller body is in a cylindrical structure; the nut is provided with pin roller holes; the roller main body is located in the pin roller holes to form clearance fit; the roller head part is located in a tooth groove of the screw rod to form the clearance fit; the diameter of each pin roller hole is a half of a screw pitch of the screw rod and the pin roller hole is arranged spirally; at least two circles of the pin roller holes are arranged; the pin roller holes are divided into pin roller positioning holes and pin roller adjusting holes; the pin roller positioning holes and the pin roller adjusting holes are arranged on a spiral track at intervals; the centers of the pin roller positioning holes are located on the central line of the spiral track; the centers of the pin roller adjusting holes are upwards or downwards deviated for the distance of one tolerance clearance relative to the axial direction of the central line of the spiral track. The pin roller bearing nut and screw rod pair is high in positioning precision, is great in bearing load, is safe and reliable in performance, is reasonable in structure, is convenient to mount and maintain and is wide in applicable range.

A bolt and nut for a train track that utilizes the principle of a connector to realize self-locking, including a bolt, a slot, an inner nut, a spring, a block, a self-locking slot, an outer nut, a crooked ring groove, a piston rod, and a top block , spring two, piston rod two, spring three, inclined block, spring four, limit block, spring five and self-locking block. The bolts and nuts used for the self-locking train track using the principle of the connector, through the cooperation of the top block and the self-locking block, the inner nut and the bolt are relatively fixed, so as to achieve the effect of self-locking. Due to the principle of the connector, the self-locking The block moves to the right under the action of spring five, and finally the self-locking block is plugged into the self-locking groove, so that the outer nut and the inner nut are relatively fixed, so as to achieve a relatively fixed effect, making the connection between the inner nut and the bolt more stable and not easy to loose , so that the self-locking effect is more stable, the train operation is safer and more secure, and the workload of maintenance personnel is reduced.

The present invention relates to the technical field of ocean engineering, and discloses an anti-falling device for an ocean engineering crane based on the principle of centrifugal force, comprising a crane arm, the inside of the crane arm is fixedly connected with a first fixing plate, and the inside of the first fixing plate has a A steel cable is movably connected, the outside of the first fixing plate is fixedly connected with a limit block, the outside of the limit block is slidably connected with a slider, and the inside of the slider is movably connected with a return spring, and the The outside is fixedly connected with a fixed block, and the outside of the slider is movably connected with a bump, and the outside of the bump is fixedly connected with a fixed plate, through the cooperation of the centrifugal plate, the pawl slide bar and the positioning plate, so as to achieve When falling, the rotational speed of the centrifugal disc increases, so that the pawl slide bar automatically locks the positioning disc. The operation is simple, automatic locking, accurate control, timely response, effectively reducing the probability of accidents and protecting the safety of workers.

The invention provides a hard disk bracket self-locking structure and self-locking method, and relates to the field of hard disk bracket self-locking. A baffle sheet is mounted in a button mounting groove; the baffle sheet comprises a pick-and-place sheet and clamping pieces; a baffle sheet mounting groove is formed in the mounting end of the baffle sheet; the baffle sheet mounting groove is matched with the button mounting groove in structure; the clamping pieces are arranged on the two sides of the baffle sheet mounting groove; the clamping pieces are matched with a button in structure; eachclamping piece comprises an elastic connecting sheet and a clamping bulge; the clamping bulges are connected with the pick-and-place sheet through the elastic connecting sheets; and the clamping bulges limit the button to move inwards. By adding the limiting baffle sheet to the button, when the button is pressed, the downward moving space of the button is limited, so that a handle is not ejected,and the self-locking effect is achieved; and if a bracket needs to be opened, the small baffle sheet only needs to be pulled out, so that the handle can be normally ejected for pulling out a hard disk.

The invention discloses a V-shaped hung-type marking aluminum profile combined structure, which comprises a hanging structure, a top fixed seat which is arranged at the lower side of the hanging structure, two top hanging heads which are arranged at the left and right sides of the top fixed seat, two clamping plates which are fixed to the two top hanging heads by virtue of a plurality of fixed bolts, two information boards with upper ends clamped between the two top hanging heads and the two clamping plates, two bottom fixed buttons which are arranged at the lower ends of the two information boards, two grasping sheets which are matched with the two bottom fixed buttons by virtue of a plurality of fixed bolts so as to clamp the lower ends of the information boards, a bottom fixed seat which is arranged between the two fixed buttons, and two side plates. According to the V-shaped hung-type marking aluminum profile combined structure provided by the invention, structural design of the finished product (the combined structure) is completed more reasonably and complexity of the product structure is reduced, so that product production and application costs can be reduced, and beautifulappearance of the product can be improved; and in addition, the strength of the product can be improved well, and subsequently, service life of the product can be further prolonged.