221results about How to "Improve shock absorption" patented technology

The invention discloses an all-steel self-restoring buckling-restrained brace based on a disc spring, and belongs to the technical field of disaster prevention and shock absorption for civil engineering. The all-steel self-restoring buckling-restrained brace is mainly composed of an in-line steel plate inner core, a stiffening rib, a non-bonding material, an inner sleeve, an outer sleeve, the combined disc spring, a stop block, a stop plate, a left connection plate and a right connection plate. The brace is composed of a buckling-restrained part and a self-restoring part, the buckling-restrained part is composed of the in-line steel plate inner core, the stiffening rib, the non-bonding material, the inner sleeve, the left connection plate and the right connection plate, and the self-restoring part is composed of the inner sleeve, the disc spring, the stop block, the stop plate and the outer sleeve. The buckling-restrained brace disclosed by the invention is capable of effectively solving the problems of the increased post-earthquake maintenance and reconstruction cost due to the excessive residual deformation of the buckling-restrained brace under the action of a major earthquake or a medium earthquake, and high cost, low ultimate elastic deformation capacity and the like of a self-restoring material in an existing self-restoring energy dissipating brace. The all-steel self-restoring buckling-restrained brace based on the disc spring is simple in structure, clear in working mechanism, economic and applicable, and stable in performance.

The invention discloses an industrial computer main case fixing seat, which comprises a shell and a base, the front and back of the shell are opened, the top of the shell is hinged with a cover plate, and the top of the base is provided with a guide sleeve The inner part of the guide sleeve is provided with a first spring, the bottom of the housing is provided with a guide column, one end of the guide column extends into the guide sleeve and the end is connected with a limit block, the shell The bottom of the body is provided with a bracket, the top of the bracket is fixedly connected with a support block, through holes are evenly opened on the left and right side walls of the housing, and compression rods are penetrated on the left and right side walls of the housing, so that One end of the pressing rod located inside the housing is connected with a pressing plate, the pressing rod between the pressing plate and the housing is provided with a second spring, and the pressing rod is located on the outer side of the housing. One end is connected with a limiting plate, which has high practicability and is suitable for wide promotion.

The invention belongs to the transportation field, in particular to a potted flower transportation case comprising a first case body. A second case body is arranged in the first case body. The lower end of the second case body is fixedly connected with the inner bottom face of the first case body through a first elastic air bag. The peripheral side walls of the second case body are all fixedly connected with second elastic air bags. The side wall, far away from the corresponding side wall of the second case body 2, of each second elastic air bag is fixedly connected with the inner side wall ofthe first case body. The upper end of the first elastic air bag and the inner side wall of each second elastic air bag are both provided with air intake channels communicating with the second case body. First check valves are fixedly connected into the air intake channels. The side wall of the first elastic air bag and the side wall of each second elastic air bag are fixedly connected with firstexhaust pipes communicating with the outside. Second check valves are fixedly connected into the first exhaust pipes. The potted flower transportation case has a good damping effect, ventilation can be conducted on the transportation case in time, potted flowers are kept in the ventilating environment, and therefore diseases are reduced.

The invention discloses a communication cabinet combining water cooling and air cooling. The communication cabinet comprises a bottom plate, a cabinet body, air blowers, damping springs, damping devices, a rain-sheltering plate, a first exhaust fan, second exhaust fans, a rain collecting box, a soft water pipe, a booster pump, a hard water pipe and radiating fins, wherein each damping device comprises connecting rods, a spring and sliders. The communication cabinet has the advantages that the communication cabinet is provided with the damping springs and the damping devices, the damping springs play a damping role, vibration is transmitted to the connecting rods at the same time, the connecting rods and the springs are coordinated to allow the sliders to slide along slide grooves to perform secondary damping, a good damping effect is achieved, and electric components are protected; the communication cabinet is provided with the first exhaust fan, the air blowers, the second exhaust fans, the rail collecting box, the soft water pipe, the hard water pipe and the radiating fins, the water cooling and air cooling are combined to achieve communication cabinet radiating, radiating efficiency is increased, and a good radiating effect is achieved.

The invention provides a large-size composite material air inlet passage measuring rake. Aims of integrated collection and measurement of measuring parameters of an engine inlet flow field, and simple and fast installation and disassembly are achieved under the demands that rake body weight is greatly reduced, and stiffness and vibration intensity of the measuring rake are met. The technical scheme includes that the large-size composite material air inlet passage measuring rake is characterized in that a skin framework with a U-shaped cross section comprises a front measuring section and a back installation section, the root portion of installation section of the skin framework is connected on an installation seat, a measuring point protective sleeve is arranged on the windward side of measuring section of the skin framework in an equal-ring-surface mode, a measuring element is installed in the measuring point protective sleeve and is outputted to the installation seat through a guide pipe, a damping protective sleeve with a U-shaped cross section is sleeved on the outer side of the skin framework, a gap is arranged between the damping protective sleeve and the skin framework, and the damping protective sleeve is connected on the installation seat.

The invention relates to a self-lubricating wear-resistant damping alloy and a preparation method thereof. The alloy takes a magnesium alloy as a matrix and is characterized in that compound complexes are uniformly distributed on the magnesium alloy matrix; the alloy material comprises the following chemical components by weight percent: 6-8% of aluminium, 2.5-3% of strontium, 2-3% of tin, 1-2.5% of iron, 0.03-0.09% of carbon, 0.3-0.5% of graphite, 0.1-0.3% of manganese, 0.5-1.2% of nickel, 0.01-0.03% of molybdenum, 0.03-0.05% of boron, 0.03-0.05% of vanadium, 0.001-0.003% of tellurium, 0.8-1.2% of dysprosium, 1.2-1.5% of yttrium, 0.8-1.2% of lanthanum and the balance of magnesium and less inevitable impurities.

A ball bat includes a handle portion, a tubular core, a middle device and a striking portion. The handle portion is made of plastics or wooden materials and has a front end, a rear end and a body between them. The tubular core is made of fiber reinforced plastic materials or metal and is embedded in the body of the handle portion. The striking portion is made of fiber reinforced plastic materials or metal and has a front end, a rear end and a body between them. The middle device has a predetermined weight and elasticity and is positioned between the front end of the handle portion and the rear end of the striking portion such that the handle portion and the striking portion can be connected to be a whole bat.

The invention discloses a telescopic bracket. The telescopic bracket comprises a baseplate; an extension rod A and an extension rod B are mounted on the baseplate; a spring A is mounted on the extension rod A; a spring B is mounted on the extension rod B; a placing plate for placing packing machinery is mounted at the upper ends of the extension rod A and the extension rod B; a support plate is mounted between the extension rod A and the extension rod B; an adjusting mechanism is mounted between the placing plate and the support plate; a stop lever A is movably mounted on one side of the placing plate; and a stop lever B is movably mounted on the other side of the placing plate. As the packing machinery is put on the placing plate, and springs are arranged on two extension rods, the telescopic bracket can improve the vibration reducing effect; and the telescopic bracket is provided with the adjusting mechanism for effectively preventing shaking caused by the gravity effect of the packing machinery.

The invention discloses a power distribution cabinet of a power system. A protection plate is included, a groove is arranged in an upper side of the protection plate; rectangular grooves are arrangedin two opposite inner sides of the groove; the rectangular grooves are located at the bottommost position of the groove; a lifting plate capable of moving up and down is arranged in each rectangular groove; and a mounting groove is arranged in an upper side of the lifting plate, a shock pad is embedded in the mounting groove, a cabinet body is fixedly connected to an upper surface of the shock pad, guide mechanisms used for enabling the lifting plate to move up and down are symmetrically arranged in each rectangular groove, and two shock absorption support seats are symmetrically arranged at an inner bottom of the groove. The power distribution cabinet is reasonable in structural design, damping and buffering effects are achieved through an acting force of damping springs, up-down dampingand buffering effects are further improved through a damping mechanism so as to guarantee safety of the power distribution cabinet, a shaking amplitude of the cabinet body can be effectively controlled through a buffering mechanism, and stability of the cabinet body is guaranteed.

The invention discloses a rail grinding machine capable of absorbing shock. The rail grinding machine capable of absorbing the shock comprises a mobile seat; a holding handle is arranged above the mobile seat; two supporting rods are symmetrically arranged between the holding handle and the mobile seat; two sleeves sleeve both the two supporting rods; first springs are arranged between the sleevesand the holding handle, between the two sleeves and between the sleeves and the mobile seat; the first springs sleeve the supporting rods; a first storage box is arranged between the holding handle and the mobile seat; a driving motor is arranged at the upper end of the first storage box; a first fixed plate and a second fixed plate are respectively arranged on the two sides of the driving motor;a first fixed block and a second fixed block are respectively arranged at the two ends of the first fixed plate and the second fixed plate; and a fixed rod is arranged between the first fixed block and the second fixed block. The rail grinding machine capable of absorbing the shock has the advantages that the shock absorbing effect is good, the comfort degree of the use is improved, the rail grinding efficiency is high, the damage of a steel rail during grinding is effectively avoided, and the rail grinding quality is improved.

The invention discloses an efficient damping device for an industrial computer. The damping device comprises a damping frame, a connecting seat is arranged in the damping frame, moreover, the lower end of the connecting seat is fixedly connected with the upper end of a damping rod, a plurality of sliding blocks are fixedly connected to the connecting seat in a circumferential direction, moreover,the sliding blocks are in sliding connection with the inner side wall of the damping frame, a base is fixedly connected to the upper ends of the plurality of sliding blocks. A sliding plate and a supporting frame can move relative to each other through action of the tremor force, on the one hand, the sliding plate moves to drive an abutting ball to be in contact with and abutted against an elasticplate through a moving rod, then the damping effect is achieved; on the other hand, due to the fact that the moving rod is in threaded connection with a limiting plate, the limiting plate and the moving rod move relative to each other to enable the moving rod to rotate, then under the action of a rubber band, the damping effect is achieved; and therefore, the device can achieve the efficient damping effect through multi-step measures.

The invention provides a shock absorbing wheel chair which comprises a wheel chair rack, a seat, two shear type shock absorbing mechanisms, a pair of back wheels, a front wheel shock absorbing mechanism, side plates, a wheel rack and shock absorbing springs I. The two side plates are oppositely arranged on two sides of the wheel chair rack, the back wheels are movably mounted in the two side plates through two wheel racks separately, the shock absorbing springs I are arranged between the wheel racks and the side plates, the seat is movably mounted on the wheel chair rack, the shear type shockabsorbing mechanisms are arranged on the lower side of the seat, and the two shear type shock absorbing mechanisms are oppositely mounted on the wheel chair rack. By arranging the pair of shear type shock absorbing mechanisms to absorb shock below the seat, the purpose of increasing the shock absorbing effect is achieved by way of multi-shock-absorbing mode. Shock from the wheels is weakened through the front wheel shock absorbing mechanism. In the advancing process of the front wheel on a rugged pavement, the front wheel can shrink inward to buffer so as to further reduce shock. The front wheel shrinks when the wheel chair encounters a relatively low ladder, so that the wheel chair advances favorably.

The present invention relates to the field of wheels, in particular to pneumatic spoke damping wheels. The present invention adopts the following technical scheme: a pneumatic spoke damping wheel, including a wheel hub, a pneumatic shock absorber, and a wheel bearing. Shock mechanism, movable rod, air pressure damping mechanism is set on the inner bottom of the piston rod, the piston rod is sleeved on the outside of the bottom end of the movable rod, the bottom end of the piston rod is provided with a first rotating shaft mechanism, and the top of the movable rod is provided with a second rotating shaft mechanism , three bases are set on the wheel hub, every two adjacent bases are separated by 120 degrees, the second rotating shaft mechanism is mechanically connected with the base through bolts, both ends of the wheel bearing are mechanically connected with triangular iron pieces, the first rotating shaft The mechanism is mechanically connected to the apex on the triangular iron sheet through bolts. The invention has the advantages that the air pressure shock absorber is used to replace the traditional spokes and angle design between the triangular iron sheet and the air pressure shock absorber, thereby improving the shock absorption capacity of the wheel.

The invention discloses a spinning rack with a damping function. The spinning rack comprises a rack body, wherein the rack body comprises a transverse plate and support legs, auxiliary support legs are arranged on one side of the transverse plate, and damping springs I are arranged on the auxiliary support legs; each support leg comprises a convex support leg and a concave support leg, a groove is formed in the concave support leg, an air spring is arranged in the groove and comprises an air bag sleeved with a waist ring, and the air bag is fixedly connected with a sealing cover plate through sealing flanges and sealing bolts; a damping base is arranged at one end, far away from the transverse plate, of each support leg, and damping springs II are arranged in the damping bases. The spinning rack can effectively reduce impact force borne by the support legs, the damping effect of the support legs is enhanced, the contact area of the damping bases and the ground is increased, the problem of damage to the ground due to too large impact is solved, the rack body is more stable, horizontal vibration is effectively reduced, and the production quality of spinning products is improved.

The invention discloses a double-damping single trailing arm independent suspension and belongs to the field of a special low-speed vehicle. The device comprises a vehicle body, wheels, an axle housing, a support, a suspension trailing arm, a spring and a damper, wherein the support is connected with the vehicle body through a bolt; the axle housing is connected with a wheel; the suspension trailing arm is positioned in front of the wheel; the height of the suspension trailing arm is slightly below a wheel center of the wheel; the suspension trailing arm is fixed on the axle housing and is hinged with the vehicle body through a trailing arm pin shaft; the spring is arranged between the axle housing and the support; the damper is positioned at the rear of the wheel; and the damper is arranged between the axle housing and the support. The device can be successfully applied on the special low-speed vehicle. A double-damping system is adopted. The damping performance of the suspension is improved.

Provided is an adjustable damping rail guide vehicle. The adjustable rail guide vehicle comprises a vehicle frame. The vehicle frame comprises a front vehicle frame and a rear vehicle frame, and the front vehicle frame and the rear vehicle frame are in front and back symmetry. Adjusting seats are fixed to the left end and the right end of the front vehicle frame and the left end and the right end of the rear vehicle frame, and each adjusting seat is rotatably connected with a swing seat. Vehicle shafts capable of rotating in the axial direction penetrate through the swing seats horizontally, and wheels are connected with the outer ends of the vehicle shafts. Cross-shaped universal shafts are connected with the inner ends of the vehicle shafts, and driving motors are arranged on the front vehicle frame and the rear vehicle frame. The cross-shaped universal shafts on the left side and the right side of the front vehicle frame are connected with the driving motors of the front vehicle frame through transmission mechanisms, and the cross-shaped universal shafts on the left side and the right side of the rear vehicle frame are connected with the driving motors of the rear vehicle frame through transmission mechanisms. The adjustable damping rail guide vehicle has the beneficial effects that the four wheels are independent of one another and have little influence on one another, the damping effect is greatly improved, the front and back space of the vehicle frames can be adjusted to adapt to fork frames of different sizes, and the range of application is wide.

The invention discloses a convenient-to-move damping building equipment fixing device which comprises a base and a top seat; four support columns are fixed at four corners of the base in a penetratingand inserting manner; the top ends of the four support columns are connected with the four corners of the bottom end of the top seat through four sleeves; four universal wheels are mounted at the bottom ends of the four support columns through four sleeves; the eight sleeves are arranged on the tops and the bottoms of the four support columns in a sliding and sleeving manner; eight damping springs are fixedly arranged in the eight sleeves separately and are fixedly connected with the top ends and the bottom ends of the four support columns separately; and four sliding chutes are symmetricallyformed in the top end of the top seat. The convenient-to-move damping building equipment fixing device has the following benefits: the four sleeves and the four damping springs at the bottom ends ofthe support columns can play a damping role in the universal wheels, and the four sleeves and the four damping springs at the top ends of the support columns can play a damping role in the top seat, so that dual damping functions can be further realized, and the damping effect is greatly improved.

The invention provides a high-efficiency hot rolled steel plate differential leveling and dedusting device. The high-efficiency hot rolled steel plate differential leveling and dedusting device comprises a fixed housing, grinding rollers, recoiling machines, guiding rollers, a waste material placing box, supporting racks, a first motor, adjusting pressing rods, a hot rolled steel plate, a fixed plate and a second motor. The grinding rollers are arranged in the fixed housing; the fixed plate is fixed on the inner upper side of the fixed housing; the adjusting pressing rods are arranged between the fixed plate and the grinding rollers; the coiling machines are arranged on the left and right sides of the supporting racks; the guiding rollers are arranged on the upper portions of the supporting racks; and the supporting racks are arranged on the left and right sides of the fixed housing. By arranging a shock absorbing spring, the shock absorbing effect of the rollers is favorably improved; by arranging the supporting racks, the heights of the supporting racks are conveniently adjusted; and by arranging lattice-shaped convex marks on a first roller, the dedusting effect is favorably improved, so that the device is more convenient to use.

The invention discloses a damping device for textile machinery, including a base, an upper cover, filter nets and a bearing plate. Base abutment blocks are uniformly distributed at the upper end of the base, and the lower end of the upper cover is fixed to the upper ends of the base abutment blocks. The filter nets are inserted between every two adjacent base abutment blocks. The bearing plate includes a disc body, a bearing plate convex column and a bearing plate insertion column. The bearing plate insertion column penetrates through the center of the base. Lower springs are crimped between the disc body and the base. Silicone telescopic tubes are installed between the lower end surface of the disc body and the upper end surface of the base through metal sleeves. The lower spring is located on the periphery of the silicone telescopic tube. Upper cover insertion columns are uniformly distributed on the lower end surface of the upper cover, the lower ends of the upper cover insertion columns penetrate through the disc body, and the outer peripheries of the upper cover insertion columns are sleeved with upper springs. The upper and lower ends of the upper springs abut against the upper cover and the disc body respectively. A telescopic joint is crimped between the upper cover and the disc body. The upper spring is located on the periphery of the telescopic joint, the filter net is located on the periphery of the upper spring and the lower spring. The damping device has obvious damping effect and long service life.

The invention relates to a novel screen plate with a composite structure. A compound screen surface and a metal screen bottom are integrally fixed, wherein the compound screen surface is arranged on the upper side, the metal screen bottom is arranged on the lower side, and the compound screen surface and the metal screen bottom are provided with corresponding screen holes. The screen surface is made of high-wear-resistant polyurethane materials, the service life of the screen plate is prolonged by more than 3-5 times, and the screen plate is light in specific weight, light in dead weight and obvious in energy-saving effect, and is economical and practicable. The screen bottom is made of metal materials, and the metal materials for the lower screen bottom only need to have proper bearing capacity and integral strength as frictional loss in use is borne by the upper screen surface. Therefore, materials for an original metal screen plate can be saved by 60%, the dead weight is reduced, energy is saved, and manufacturing cost is low. The novel screen plate is simple in manufacturing process, excellent in quality and reasonable in price, has obvious comprehensive advantages, realizes energy conservation and consumption reduction, and is uniformly well received by users after a large quantity of trial.

The invention discloses a solar panel protective cover, which includes a base, a supporting rod is fixedly mounted at the top of the base; a solar panel is movably mounted at the top of the supportingrod; a supporting base is arranged at the top of the solar panel, fixing blocks are fixedly installed on the two sides of the top of the supporting base, sliding grooves are formed in the fixing blocks, sliding blocks are slidably connected into the sliding grooves, curved surface springs are movably connected to the front faces of the sliding blocks, and protective covers are movably connected to the tops of the curved surface springs. According to the invention, the sliding grooves, the sliding blocks and curved surface springs are arranged, so that the protective cover can be damped; through the arrangement of a fixed rod, a supporting rod, a limiting rod, a movable rod and a buffer spring, the damping effect of the protective cover under gravity compression can be improved, the solarpanel is protected and prevented from being damaged, and meanwhile the problems that no protective device is provided for protecting the solar panel, and the solar energy utilization rate is reduced are solved.

The power steering oil pump for automobile includes pump body, valve body, pump cover, transmission member and inner pump cavity. The inner pump cavity includes oil inlet pressure board, oil outlet pressure board, stator, rotor, vane and spring; the valve body has slide valve, screw plug and spring as well as oil inlet and oil outlet on the upper end; the transmission member is connected via the valve shaft and the rotor inside the inner pump cavity; and there are skeleton oil sealing between the pump body and the pump shaft and O-ring on the oil outlet pressure board inside the inner pump cavity. The present invention features the separate plastic molding of and screw connection among the pump body, pump cover and valve body; planar connection between the pump cover and the valve body; pump body oil path set interface plane between the pump cover and the valve body; parting of the pump cover and the valve body at the low pressure oil cavity and high pressure cavity formed by the pump cover and the inner cavity parts.

The invention provides a complete dynamic balance type coupling, which comprises a power input-end half-coupling, a power output-end half-coupling, an input-end sheath, an output-end sheath, a middle nodule, a membrane set, an infrared ray probe, a key phase magnetic strip, and a counterweight flange. The input-end sheath and the output-end sheath are respectively sleeved onto the shaft bossing parts of the power input-end half-coupling and the power output-end half-coupling respectively through the counterweight flange. The input-end sheath is connected with the output-end sheath through the middle nodule. The membrane set is arranged among the input-end sheath, the output-end sheath and the middle nodule. The key phase magnetic strip is arranged on onto the flange of the power input-end half-coupling/power output-end half-coupling. The infrared ray probe is arranged at the upper end of the key phase magnetic strip. The counterweight flange is provided with a counterweight threaded hole. When a machine set is provided with the above coupling, the key phase magnetic strip, the infrared ray probe and the shaft vibration detection instrument of the machine set are used in conjunction with one another. Therefore, the unbalanced mass and the unbalanced phase can be determined. Only through the one-off shut-down process, a plug of the unbalanced mass is screwed into the determined counterweight threaded hole in the counterweight flange. In this way, the accurate dynamic balance of the machine set can be realized.

The invention relates to the technical field of electronic brazing alloy, belongs to an improvement on the prior art and particularly relates to a damping brazing alloy and a preparation method thereof. The damping brazing alloy is composed of the components including tin, foamed magnesium and other alloy elements and prepared by using a two-step method. Compared with the prior art, the damping brazing alloy and the preparation method thereof have the following advantages: firstly, due to the addition of the foamed magnesium, damping performance of the brazing alloy is remarkably improved, the long-term reliability of a brazing point can be favorably improved, and the stability and usability of an electronic product can be improved; and secondly, due to the application of the two-step method, the foamed magnesium and other metal powders are sufficiently and uniformly mixed, so that the sintered brazing alloy is more uniform in component, remarkably reduced in inside defect and improved on performance. The damping brazing alloy is practical and high in industrial application value.

The invention discloses a shock-absorbing cushion for uneven bars training which is convenient to use, which comprises a cloth cover, the top and bottom of the inner wall of the cloth cover are respectively fixedly connected with a rubber pad and a leather pad, and the opposite side of the rubber pad and the leather pad Connected by a rubber block, the rubber block is sleeved with a shock-absorbing spring, the bottom of the cloth cover is fixedly connected with a shock-absorbing plate, the bottom of the shock-absorbing plate is fixedly connected with a bottom plate, and the four right angles at the bottom of the bottom plate There are through grooves at all places, and slide grooves are arranged on both sides of the inner wall of the through grooves. Through the improvement of the pull plate, when the servo motor starts, the screw can be rotated, so that the ball nut can slide on the screw, and when the ball nut slides down on the screw, the two pull plates can drive the two The two slide blocks move downwards simultaneously. At this time, the carrier plate can drive the rollers arranged in the U-shaped plate to move downwards, so that the rollers can be exposed outside the bottom plate, and the whole shock pad can be moved normally.

The invention discloses a mechanical production transporting device with good shock absorbing performance. The mechanical production transporting device with the good shock absorbing performance comprises a support, a clamping seat and an article storage box; first supporting rods are movably connected to the front and back sides of the left end of the bottom of the support through bearings; and second supporting rods are movably connected to the front and back sides of the right end of the bottom of the support through bearings. According to the mechanical production transporting device withthe good shock absorbing performance, as a first shock absorbing spring is arranged, a demand of first stage of shock absorption can be realized; as an air spring is arranged, a demand of second stageof shock absorption can be realized; as a rubber plate is arranged, a demand of third stage of shock absorption can be realized; as a third shock absorbing spring and a second partition plate are arranged, a demand of fourth stage of shock absorption can be realized; and meanwhile, under the action of a fourth shock absorbing spring and a first partition plate, a transverse shock absorbing demandon parts in the article storage box can be realized; and through coordination of the structures, the shock absorbing effect of the device is effectively improved, and a phenomenon that the parts aredamaged in the transporting process is avoided.

The invention discloses a metal high-efficiency energy consumption damper, which comprises a 1st-5th energy-consuming rod elements made of mild steel and a 1st-4th node plates, wherein the first energy-consuming rod element, the second energy-consuming rod element, the third energy-consuming rod element and the fourth energy-consuming rod element are connected end-to-end to form a diamond shape and are arranged with longitudinal symmetry and bilateral symmetry, the included angle of the first energy-consuming rod element and the second energy-consuming rod element is obtuse angle, the includedangle of the third energy-consuming rod element and the fourth energy-consuming rod element is an obtuse angle, and the fifth energy-consuming rod element is as a diagonal of the long-axis of the diamond. The fifth energy-consuming rod element is as an up-and-down diagonal of the diamond. According to the invention, the damper has the advantages of energy consumption component capable of yieldingas soon as possible under the action of earthquake, generating plastic deformation and greatly consuming seismic energy, no failure caused by excessive plastic deformation due to large energy consumption, and achieving the purpose of permanent seismic absorption. The diamond structure is the key of high efficiency energy consumption.

A friction-type draft gear assembly includes a housing having an open front end and a partially closed rear end with a first and second rear portions and a pair of ledge members disposed intermediate such first and second rear portions for enabling the draft gear assembly to fit into a draft gear pocket of a predetermined length. A first rear portion is adapted to receive a compressible cushioning element with a seating arrangement abutting one end thereof which extends longitudinally from the second portion of the closed rear end toward the open front portion. A removable bottom wall is attachable either to the first or second rear portions for enabling installation of the compressible cushioning element through the first end. The open front end is adapted to receive a friction cushioning means which has a spring release mechanism for continuously urging the friction cushioning means outwardly from the compressible cushioning element thereby releasing such friction cushioning means after compression of such draft gear assembly. The open front end is configured for direct attachment to a coupler with a coupler key.

A holder for fastening at least one component, particularly a fuel distributor, to an internal combustion engine. The holder includes an elastically deformable damping element, a holder body and a spring element, which are situated lying one behind the other with reference to an axis. In response to an assembly using the fastening arrangement, a prestressing of the spring element and a prestressing of the damping element are made possible. Furthermore, a fuel injection system is described having a fuel distributor and such a holder, which is used for fastening the fuel distributor on an internal combustion engine.

The invention provides a medical first-aid kit for medical supplies, and relates to the field of medical equipment. The medical first-aid kit for the medical supplies comprises a first-aid kit body, wherein a bottom layer box body is arranged in the first-aid kit body; shockproof gaskets are fixedly arranged on two sides of the bottom part of an inner wall of the first-aid kit body; cushion blocksare fixedly arranged on the top parts of the shockproof gaskets; limiting blocks are fixedly arranged on the top parts of the cushion blocks; first springs are fixedly arranged on the top parts of the cushion blocks and located on the outer surfaces of the limiting blocks; and one ends, far away from the cushion blocks, of the first springs are fixedly connected with the bottom part of the bottomlayer box body. According to the medical first-aid kit for the medical supplies, through the cooperative use of the shockproof gaskets and the first springs, a buffer effect is achieved on the bottomlayer box body, so that the shock is weakened; with sponge blocks, the bottom layer box body is prevented from shaking left and right; and through second springs, a shock absorption effect is improved, so that the occurrence of the phenomenon that stored small-size medicine and medical devices are damaged due to collision so as to affect emergency treatment is avoided.