39results about How to "Prevent being crushed" patented technology

The invention relates to a cylindrical forced water drainage pipe with a circulated evacuation function, a device and method used for soft foundation drainage consolidation and a device and method used for sludge water removal. The cylindrical forced water drainage pipe comprises a pipe body and gratings arranged on the outer surface of the pipe in the axial direction of the pipe, and the outer surfaces of the gratings are covered with filtering films.

The invention relates to a fruit picking device, and discloses an agro-fruit picking device. The agro-fruit picking device comprises a base body, a push rod and knife claws, wherein the push rod is sleeved with the base body, the two bent knife claws are clamped to form a cavity, and cutting edges are arranged on clamping openings of the knife claws. The agro-fruit picking device is characterized in that the bent corner portion of each knife claw is hinged to the base body, a strip-shaped hole is formed in the driving end of each knife claw, the end of the push rod is connected with the strip-shaped holes through a rivet, and the rivet can slide in the strip-shaped holes; two arc covers which are oppositely buckled to form an agro-fruit containing cavity are hinged in the knife claws, and elastic parts are connected between the outer wall faces of the arc covers and the inner walls of the knife claws. Compared with the prior art, the knife claws are opened larger, an agro-fruit is aligned and picked more easily and meanwhile prevented from being crushed, and the arc covers are arranged in the knife claws to further protect the agro-fruit.

The invention relates to an adjustable expansion mandrel which comprises an adjustable mandrel, an ejection nut, an expansion sleeve and a bolt. A conical face is arranged at one end of the adjustable mandrel and is sleeved with the expansion sleeve fixed to the adjustable mandrel through the bolt, a gasket is arranged between the expansion sleeve and the bolt, the ejection nut fixed to the adjustable mandrel is arranged on the other side of the expansion sleeve, a semi-circular key is further arranged on the inner side of the expansion sleeve, and a key groove matched with the semi-circular key is formed in the conical face of the adjustable mandrel. The adjustable expansion mandrel has the advantages of being compact in structure, reliable in positioning, convenient to dismount, good in practicability and the like.

The invention provides a material clamp. The material clamp comprises a mounting seat (10), a first clamping portion (20), a second clamping portion (30), a driving mechanism (40), a movable clamping part (50) and a detection mechanism (60). The first clamping portion (20) is pivoted on the mounting seat (10) and comprises a first clamping end (21) and a driving end (22); the second clamping portion (30) comprises a second clamping end (31), and the driving mechanism (40) is arranged on the mounting seat (10) and drives the first clamping end (21) to be close to or far away from the second clamping part (31); a limiting part (23) for limiting the rotation position of the movable clamping part (50) is arranged on the first clamping portion (20), and clamping space is formed between the movable clamping part (50) and the second clamping end (31); and the detection mechanism (60) detects the clamping position of the movable clamping part (50) and determines whether a material is clamped by the material clamp or not according to a detection result. According to the material clamp, material clamping and taking out can be effectively determined, and the mold production safety is improved.

The invention relates to a process for fixing anchor line. The process is characterized in that the bottom end of an unbonded steel stranded wire is provided with a steel shearing barrel, the front end of which is provided with a bearing plate; when the anchor line is drilled, the anchor line structure adopts a cylindrical drill bit for hard rocks, a bottom enlarged end drill bit for soft rocks or soils and the combination of a self-boring drill bit and the shearing barrel for the stratum with easy hole collapse. The process has the advantages of simple and convenient mounting process and effective cost control, and improves the degree of safety of the operation condition of the anchor line.

The invention provides a metal pipe bending machine. The metal pipe bending machine comprises a supporting plate, wherein an air cylinder is fixedly connected to the position, close to one side, of the outer surface of the upper end of the supporting plate; a sleeve is movably connected to the outer surface of the other side of the air cylinder, and a baffle plate is fixedly connected to the outer surface of the other side of the sleeve; a first abutting ring is fixedly connected to the outer surface of the lower end of the baffle plate, and a second abutting ring is arranged on the outer surface of the upper end of the baffle plate; an abutting column is arranged in the position, far away from one side, of the outer surface of the upper end of the supporting plate; the first abutting ring and the baffle plate are both of an arc-shaped structure and form an integral structure; and the diameter of the first abutting ring is greater than that of the baffle plate. The metal pipe bending machine has the advantages that a user can conveniently adjust the position of the second abutting ring according to the diameters of different clamped pipes; the surface of the supporting plate can be scraped through a cleaning brush when the pipes with rust stains are bent, and the probability that the bending angle of the pipes deviates due to accumulation of the rust stains is reduced; and the use efficiency of the device is improved.

The invention discloses a variable rigidity hydraulic damping shock absorber with a self-adaptive variable damping function. The variable rigidity hydraulic damping shock absorber comprises a hydraulic cylinder body, a floating piston, a tappet rod and a return spring; the floating piston is arranged in the hydraulic cylinder body to divide an inner cavity of the hydraulic cylinder body into an upper cavity and a lower cavity and is in sealing sliding fit with the inner wall of the hydraulic cylinder body; the lower end of the tappet rod penetrates through the hydraulic cylinder body from thetop of the hydraulic cylinder body and is fixedly connected with the floating piston into a whole; the return spring is arranged in the lower cavity; the upper end of the return spring is connected with the floating piston; the lower end of the return spring is connected with the bottom of the lower cavity; a plurality of variable damping grooves are circumferentially distributed at the inner partof the hydraulic cylinder body in the length extension direction of the hydraulic cylinder body; and the inner cavity of the hydraulic cylinder body is filled with oil. The variable rigidity hydraulic damping shock absorber can realize self-adaptive damping adjustment; and the return spring which is a concave spiral spring is variable in rigidity to a certain extent, and with the increase of thecompression amount of the spring, the spring can provide greater resistance and can be prevented from being pressed to be stuck, so that the variable rigidity hydraulic damping shock absorber has a certain overload protection function.

The invention discloses a road structure with a surface type water collecting function. The road structure comprises a soil layer, wherein a foundation layer is filled in the middle inside the soil layer; a first detritus layer is filled inside the soil layer and is positioned at the top of the foundation layer; a first water discharging pipe is movably connected inside the first detritus layer; aconcrete layer is filled inside the soil layer and is positioned at the top of the first detritus layer; the road structure relates to the technical field of a road structure. The road structure withthe surface type water collecting function has the advantages that through the arrangement of the first water discharging pipe and a second water discharging pipe under the ground, water under the ground fast enters the first water discharging pipe and the second water discharging pipe through water passing holes and is discharged away; the ground accumulated water spreading since the undergroundaccumulated water is too much and cannot be timely discharged is avoided; through a pentagonal support frame, the pipeline intensity is improved; the damage through pressing is avoided; through the arrangement and matching of a blocking net, a magnetic strip and a steel strip, the pipeline blockage caused by the entering of articles such as mice into the pipeline from the outside can be avoided;the inside water discharging cannot be influenced.

The invention relates to the technical field of medical articles, and discloses a medical detection test tube rubber plug conveying and assembling mechanism. The mechanism comprises a rubber plug feeding device, a rubber plug conveying device and an assembling device. The discharging end of the rubber plug feeding device is in linkage with the feeding end of the rubber plug conveying device. The assembling device is in linkage to the position below the feeding end of the rubber plug conveying device. The rubber plug conveying device conveys rubber plugs to the assembling device. The medical detection test tube rubber plug conveying and assembling mechanism has the beneficial effects that glass tube inserting is conducted firstly, then, the rubber plugs are inserted in glass tubes, and theinserting depth of the glass tubes can be effectively and conveniently controlled. The situation that during rubber plug inserting, the glass tubes are inserted too long or too short is prevented, andthe inserting length can be controlled. The situation that during glass tube assembling, swinging or pressing breakage happens, and consequently the assembling effect is not good is prevented. Grabbing through other positioning devices or mechanical claws is not needed, and the grabbing precision and efficiency are improved. Through cooperation of rubber plug suction nozzles and the rubber plugs,rubber plug swinging is prevented, and the assembling efficiency is improved.

The invention discloses a vacuum cleaner convenient to use. The vacuum cleaner comprises a main unit, a dust suction pipe and a working part, wherein the main unit is provided with a power cord, at least a part of the dust suction pipe can stretch and contract, the main unit is provided with a connection port, one end of the dust suction pipe is an air outlet end connected with the connection portof the main unit, the other end of the dust suction pipe is an air suction end connected with the working part, the working part comprises a functional element used for cleaning and a motor associated with the functional element, the dust suction pipe is provided with a spiral connecting wire, one end of the connecting wire is electrically connected with the power cord of the main unit through aninsertion part arranged at the air outlet end of the dust suction pipe, and the other end of the connecting wire is electrically connected with the motor of the working part through an insertion partarranged at an air inlet end of the dust suction pipe. The vacuum cleaner convenient to use can significantly improve the cleaning effect on stubborn stains, thereby improving the work efficiency, and the use is convenient.

The invention discloses a military heat dissipation device with an auxiliary heat dissipation function. The heat dissipation device includes a mounting seat used for mounting a fan, a main heat guiding pipe, a heat dissipation fin group, a first heat absorption piece and a second heat absorption piece. The heat dissipation fin group is disposed on one side surface of the mounting seat. The secondheat absorption piece is located on a side of the first heat absorption piece opposite the mounting seat. The heat dissipation fin group is formed by sequentially fastening a plurality of fins arranged in parallel. A side which is of the mounting seat and is connected with the main heat guiding pipe is opened with a groove. A heat dissipation end of the main heat guiding pipe is embedded in the groove, and is in welded connection with the mounting seat. The mounting seat is opened with a plurality of lock holes. Another end of an auxiliary heat guiding pipe is equipped with a heat absorption piece. The heat absorption piece is opened with a plurality of lock connection holes. According to the heat dissipation device, deviation and crushing of heat guiding pipe positions are prevented, stability of an entire heat dissipation structure can be improved, thus all components in the heat dissipation system are enabled to be mutually complemented, and heat dissipation performance and heat dissipation stability of the heat dissipation device are improved.

The invention discloses an assembly capable of improving the feeding efficiency of a nose bridge strip of a plane mask machine, and relates to the technical field of mask production, in particular to an assembly capable of improving the feeding efficiency of the nose bridge strip of the plane mask machine. The assembly comprises a base and a nose bridge barrel part, wherein a nose bridge strip pressing block is installed above the nose bridge barrel part; a feeding groove is formed in the nose bridge strip pressing block; a bump plate is installed at the left side of the nose bridge strip pressing block; an arc-shaped groove is formed in the bump plate; a cutter shaft is installed at the left side of the bump plate; a nose bridge strip cutter is installed at the front end of the cutter shaft; and a second linkage shaft is connected to the rear end of the cutter shaft, and the rear end of the second linkage shaft is connected with a second driving motor. According to the assembly capable of improving the feeding efficiency of the nose bridge strip of the plane mask machine, the bump plate can be matched with the arc-shaped groove, and when the nose bridge strip enters the nose bridge barrel part, shaking from side to side of the nose bridge strip is limited, so that the situation that the nose bridge strip tilts upwards when swinging from side to side is prevented.