112results about "Multiple spring combinations" patented technology

The invention discloses a self-adaptive multi-stage negative Poisson's ratio energy absorption device and a manufacturing method.The self-adaptive multi-stage negative Poisson's ratio energy absorption device comprises a shell and a negative Poisson's ratio honeycomb structure arranged in the shell, and the negative Poisson's ratio honeycomb structure is formed by a plurality of self-adaptive negative Poisson's ratio unit cell arrays; each self-adaptive negative Poisson's ratio unit cell comprises a negative Poisson's ratio framework, an upper supporting structure and a lower supporting structure, the upper supporting structure and the lower supporting structure are connected to the interior of the negative Poisson's ratio framework, a horizontal supporting platform is arranged in the middle of the negative Poisson's ratio framework, and a preset gap allowing the negative Poisson's ratio framework to shrink and deform is formed in the middle of the horizontal supporting platform of the negative Poisson's ratio framework; the upper supporting structure extends downwards from the joint with the negative Poisson's ratio framework and is provided with an upper supporting platform, and the lower supporting structure extends upwards from the joint with the negative Poisson's ratio framework and is provided with a lower supporting platform; the self-adaptive graded protection device has the advantages that elastic buffering reusability of low-speed collision and multi-stage efficient energy absorption of high-speed collision can be both considered, and self-adaptive graded protection is achieved.

The utility model relates to the technical field of lining plates, in particular to a combined type abrasion-resistant buffering lining plate which comprises a lining plate body, a reinforcing assembly is arranged on the peripheral wall of the lining plate body and used for reinforcing and supporting the lining plate body, and a fixing assembly is arranged on the side wall of an edge sealing piece and used for combining and fixing the lining plate body. According to the lining plate, the reinforcing assembly is arranged on the peripheral wall of the lining plate body, the supporting force and toughness of the edge of the lining plate body can be improved through the edge sealing piece and the reinforcing piece on the reinforcing assembly, the endurance and elasticity of the lining plate body are improved, and the service life of the lining plate body is prolonged; meanwhile, a fixing assembly is arranged on the side wall of the reinforcing assembly, a fixing plate on the fixing assembly is inserted into the other set of edge sealing pieces, fixing is conducted through the fixing plate, the lining plate body can be conveniently combined for use according to the size of a product, and the applicability of the lining plate is improved.

Provided is an anti-vibration device (1) including: a first anti-vibration rubber cylinder (11) that connects a vibration generating portion and a vibration receiving portion in a first direction; a second anti-vibration rubber cylinder (12) that sandwiches one of the vibration generating portion and the vibration receiving portion in the first direction between the first anti-vibration rubber cylinder (11) and itself; and a support member (13) that sandwiches the second anti-vibration rubber cylinder (12) in the first direction between the one of the portions and itself, wherein the first anti-vibration rubber cylinder (11) and the second anti-vibration rubber cylinder (12) are provided with respective central axes (O) thereof extending in the first direction, and peripheral grooves (15) are formed separately on an outer peripheral surface and an inner peripheral surface of at least one of the first anti-vibration rubber cylinder (11) and the second anti-vibration rubber cylinder (12).

The present invention relates to abracket for damping forces between a wall and a floor of a building. The bracket comprises a first and a second anchoring plate, at least two cylindrical channel elements connected to the first anchoring plate and at least one cylindrical channel element connected to the second anchoring plate. The bracket is characterized by a radial damping element inside each cylindrical channel element, the radial damping element(s) thereby providing damping of radial forces between the anchoring plates, and at least one axial damping element damping axial forces between the anchoring plates, wherein the connection member is extending though a through-hole of each radial damping element and a through-hole of said axial damping element. Thus, a bracket according to the present invention permits damping in at least two substantially different directions, preferably in a radial direction and an axial direction.

The utility model discloses an automobile air shock absorber assembly with a dustproof function. The automobile air shock absorber assembly comprises a shock absorber body, the adjusting bearing is fixed at the bottom of the shock absorber body; the piston rod is arranged on the inner sides of the shock absorber body and the adjusting bearing in a penetrating manner; the threaded ring is connected to the outer side of the end, away from the shock absorber body, of the piston rod; the anti-loosening mechanisms are arranged between the threaded ring and the positioning end in a regular annular array mode. Through the synergistic effect of the dustproof cover, the positioning column and the elastic component, external dust, sand grains and other impurities can be effectively prevented from entering the shock absorber in the vehicle running process, an L-shaped ring at the bottom of the dustproof cover is tightly matched with an L-shaped groove of the positioning end, and a threaded connection structure between a threaded ring and the positioning end is additionally arranged, so that the shock absorber is more compact in structure. The dustproof cover can be kept stable under various driving conditions and cannot fall off or shift due to vibration, so that reliable dustproof protection is continuously provided.

This torsion spring has: a plurality of elements that are each rotatable about a common rotation center line, and that are arranged in the extension direction of the rotation center line; and a connection member that connects two adjacent elements. The connection member comprises: a first connection part that is connected to one of the two adjacent elements; a second connection part that is connected to the other of the two adjacent elements; and an elastic deformation part that is connected to the first connection part and the second connection part, and that elastically deforms when one of the two adjacent elements rotates relative to the other.

The invention relates to the technical field of railway vehicles, and provides a damping device and a railway vehicle. In the damping device, self-adaptive rigidity adjustment of a dynamic load is achieved through cooperation of a main spring assembly and an auxiliary spring, in a first-stage bearing range, a bearing connecting piece moves along with the main spring assembly and keeps a separated state from the auxiliary spring, and the main spring assembly elastically deforms independently to provide basic rigidity; in the second-stage bearing range, the bearing connecting piece further moves along with the increase of the load and abuts against the auxiliary spring, the auxiliary spring and the main spring assembly cooperatively deform to provide composite rigidity with higher supporting force, and therefore the damping requirements under different load working conditions are met. Through grading cooperation of the main spring assembly and the auxiliary spring, the low overall rigidity is kept in the low-load state, and vibration transmission is effectively reduced; higher composite rigidity is provided in a high-load state, excessive deformation of the floor is effectively restrained, automatic adaptation to different load working conditions is achieved, good balance is achieved between light load and heavy load, and safety and comfort are improved.

An arrangement for mounting a blower assembly of an HVAC unit. The arrangement comprises a fixture, and one or more support brackets coupled to the fixture and the blower assembly. The one or more support brackets are designed so as to absorb vibrations caused due to operation of the blower assembly or during transportation.

This application discloses a multi-stage energy-absorbing unit, a multi-stage energy-absorbing mechanism, and a drone battery protection device. The multi-stage energy-absorbing unit includes a hexagonal honeycomb structure and a supporting structure. The hexagonal honeycomb structure includes a first pressure plate and a second pressure plate. The supporting structure is located in the middle region between the first and second pressure plates, with one end fixed to the first pressure plate and the other end at a predetermined distance from the second pressure plate. The multi-stage energy-absorbing unit has a first deformation stage and a second deformation stage. By providing a supporting structure at a certain distance from the second pressure plate within the hexagonal honeycomb structure, this application enables the multi-stage energy-absorbing unit to have both a first and a second deformation stage. Compared to existing technologies, this provides energy absorption protection under both low-energy and high-energy impacts.

The bidirectional frequency-avoiding vibration absorber assembly comprises a mass block and a damping unit, the damping unit is installed and connected to the inner side of the mass block, the damping unit comprises an outer sleeve and an installation support, the outer sleeve is installed on the outer side of the installation support in a sleeving mode, and the installation support is provided with a rectangular section; the installation support comprises two symmetrically-arranged long-edge end faces and two symmetrically-arranged short-edge end faces, second rubber damping bodies are connected between the long-edge end faces and the inner wall of the outer sleeve, and first rubber damping bodies are connected between the short-edge end faces and the inner wall of the outer sleeve. Different inherent frequencies are achieved on one vibration absorber in two directions forming a 90-degree angle, a vibration absorber assembly product capable of avoiding the frequencies in the two directions is obtained, the use amount of automobile parts can be effectively reduced through application of the vibration absorber assembly, and the light weight of the whole automobile and the reduction of the automobile cost are facilitated.

The invention discloses a high-reliability whole-satellite vibration isolator structure which comprises a main vibration isolator, a damping vibration isolation layer, a damping vibration isolation pad and a limiting bolt. Wherein the damping vibration isolation layer is arranged on the upper surface of the peripheral side of the main vibration isolator; the damping vibration isolation pad is arranged in a groove formed in the middle of the main vibration isolator. One end of the limiting bolt penetrates through the damping vibration isolation layer and the main vibration isolator and then is connected with a satellite subjected to vibration reduction. The damping device has the advantages of high reliability, high damping efficiency and high buffering efficiency.

The invention provides a tensegrity inspired buffer mechanical metamaterial structure, which relates to the technical field of buffer materials and comprises an upper-layer buckling structure, an upper-layer connecting structure, a lower-layer connecting structure and a lower-layer buckling structure, the upper-layer buckling structure and the lower-layer buckling structure are correspondingly arranged in the vertical direction and cover the outer side of the upper-layer connecting structure and the outer side of the lower-layer connecting structure correspondingly. The upper-layer buckling structure and the upper-layer connecting structure are both circumferential array structures and respectively comprise buckling units and connecting units which are in one-to-one correspondence in number; each buckling unit comprises a supporting framework, a deformation main body, a supporting seat and a connecting interface; each connecting unit comprises a connecting part and a coupling part used for being matched with the buckling unit; the inner connecting bulge of the buckling unit and the coupling part of the connecting unit form embedded coupling connection; the upper-layer outer connecting protrusions of the upper-layer buckling structure and the corresponding outer connecting protrusions of the lower-layer buckling structure are directly and fixedly connected at the central plane of the metamaterial.

Embodiments include an attenuation support to support or mitigate movement of an element, mainly a pipe of a pipeline, in which the movement comprises vibration and / or thermal expansion. The support can include damping elements, spacer elements, a housing housing the damping elements and the spacer elements, a rod extending through the housing, in which the damping elements and the spacer elements are intercalated with each other within the housing.The rod can be mounted with radial interference in relation to the damping elements. The damping elements can be hollow discs of elastomeric material, and the spacer elements can be hollow discs of rigid material. When thermal expansion movement of a pipe occurs, the rod moves in relation to the damping elements. When the dynamic movement occurs due to vibration of the pipe, friction between the rod and the damping elements deforms the latter, causing a hysteretic damping of the movement.

The present disclosure describes an external vibration isolation device for electrophoretic mobility measurement. In one exemplary embodiment, the apparatus includes at least three springs, (1) wherein each of the at least three springs includes (a) a top flexure ring, (b) a bottom flexure ring, (c) a plurality of external rigid connectors, and (d) an internal rigid connector, (2) wherein the plurality of external rigid connectors and the internal rigid connector couple the top flexure ring and the bottom flexure ring to each other, (3) wherein the internal rigid connector is connected to a surface of a chassis of an electrophoretic mobility measurement instrument, and (4) wherein the plurality of external rigid connectors are connected to a grounded surface of a housing of the instrument.

The present disclosure relates to a mount assembly for engineering services such as air handling units (AHU) of a heating, ventilating, and air-conditioning (HVAC) systems. In one form, the mount assembly comprises a an aperture comprising a female screw thread, and a resilient element comprising an item attachment point and a male screw thread adapted for threadable engagement with the female thread of the base so that the resilient element interposes the item attachment point and the-base.

The utility model relates to the technical field of automobile damping air springs, and discloses an automobile damping air spring capable of bearing high load, which comprises a mounting plate, an air bag is fixedly connected to the lower surface of the mounting plate, a waist plate is fixedly connected to the lower surface of the air bag, and a damping component is arranged on the inner wall of the air bag; the damping assembly comprises a sliding shaft, a buffer spring, a rotating shaft, a connecting rod, a piston rod and a damper, one end of the sliding shaft is arranged on the inner wall of the air bag, the two ends of the buffer spring are fixedly connected to the outer wall of the sliding shaft, the other end of the sliding shaft is slidably connected into the rotating shaft, and one end of the connecting rod is rotatably connected to the outer wall of the rotating shaft; the piston rod is rotationally connected to the other end of the connecting rod, and the outer wall of the piston rod is slidably connected into the damper. According to the air spring, the damping process is optimized, the air spring can still keep stable buffering performance under the long-time high-load working condition, and therefore the bearing capacity of the air spring is improved, and the service life of the air spring is prolonged.

The invention relates to a zero-Poisson-ratio telescopic buffering energy-absorbing structure, and belongs to the technical field of metamaterials. The structure is formed by periodically arranging a plurality of basic unit cells, and the basic unit cells are formed by performing primary mirroring on microstructure unit cells; the cross section of each microstructure unit cell comprises a first connecting beam, a second connecting beam, a third connecting beam and a fourth connecting beam which are connected in sequence; the first connecting beam, the second connecting beam, the third connecting beam and the fourth connecting beam respectively have specific node distribution and geometric constraint; the microstructure unit cells have out-of-plane depths perpendicular to the cross sections of the microstructure unit cells; and each basic unit cell is of a rhombic structure enclosed by two mutually symmetrical micro-structure unit cells. According to the invention, the transverse deformation is mutually counteracted during axial stress, the zero Poisson's ratio effect is realized, meanwhile, the impact energy is absorbed by utilizing the elastic buckling of the rhombic grids, and the comprehensive properties of constant transverse size, stable positioning point and high buffering efficiency are achieved.

Embodiments of this application relate to the technical field of electronic devices, and provide a compliant constant-stiffness mechanism, a hinge assembly, and a terminal device. The compliant constant-stiffness mechanism includes at least one sheet-like compliant constant-stiffness body. The compliant constant-stiffness body includes a first force application portion, a second force application portion spaced apart from the first force application portion, and a deformation portion located between the first force application portion and the second force application portion, and connected to the first force application portion and the second force application portion. A side of the first force application portion facing away from the deformation portion is connected to an external object. A side of the second force application portion facing away from the deformation portion is connected to an external object. The deformation portion, the first force application portion, and the second force application portion are located in a first plane. The deformation portion is elastically deformable in the first plane. Since the compliant constant-stiffness body provided in the embodiment of this application is in a sheet-like structure, compared with a spring, larger elastic force can be provided at the same thickness, thereby facilitating the lightweight design of the applied apparatus.

The spiral energy storage spring and the compression spring are integrated inside, or the spiral energy storage spring, the magnetic spring and the planar spring are integrated inside, so as to realize energy storage and passive flexibility, reduce driving consumption and meet the requirement of driving agility.SOLUTION: Disclosed is a flexible joint based on an elastic element, including an involute small-tooth-number difference reducer, a spiral energy storage spring, and a flexible output module / composite flexible output module. The involute small-number-of-teeth difference reduction gear employs only an eccentric input shaft, a pair of involute internal tooth rings, and an involute planetary gear to achieve oscillation and rotation motions of the involute planetary gear. The power output of the output disc is transmitted by the interaction of the column pin and the first column pin working hole of the involute planetary gear or the second column pin working hole of the output disc. The accuracy requirement can be easily met only by the meshing form of the pair of gears, the axial dimension is compact, the pair of gears adopt involute tooth profile, and the manufacturing cost is low.SELECTED DRAWING: Figure 1

The invention provides a shock absorber which comprises a shock absorption body arranged on a bearing shaft in a sleeving mode, the shock absorption body comprises a plurality of frameworks which are sequentially arranged layer by layer from inside to outside, the space between every two adjacent frameworks is filled with a shock absorption layer, and each shock absorption layer is composed of a first shock absorption body and a second shock absorption body; the first buffering channel is arranged between the adjacent ends of the first vibration reduction body and the second vibration reduction body, and after pre-compression, the adjacent ends of the first vibration reduction body and the second vibration reduction body can make contact in the first buffering channel, so that collision between the first vibration reduction body and the second vibration reduction body is relieved, the reliability of the vibration damper is improved, and the service life of the vibration damper is prolonged.

To provide an anti-vibration bush that can suppress the increase in the absolute spring constant caused by surging in the axial line direction. A anti-vibration bush includes: an outer cylinder 3; an inner cylinder 2; and a rubber body 4 positioned between the outer cylinder and the inner cylinder. In the anti-vibration bush, the rubber body includes: a main body rubber section 41 that couples the outer cylinder and the inner cylinder to each other in a radial direction and extends over only a part in a circumferential direction; a hollow 42 that is positioned in a circumferential direction region other than a circumferential direction region in which the main body rubber section extends and penetrates through the rubber body in an axial line direction; and a stopper rubber section 43 that faces the hollow in the radial direction. The stopper rubber section is coupled to the main body rubber section so as to be able to move in direct conjunction with the main body rubber section, and a secondary peak value or a tertiary peak value of an absolute spring constant in an axial line direction of the anti-vibration bush is lower by 20% or more as compared with a reference bushing B in which the main body rubber section of the anti-vibration bush is extended over an entire circumference and the rubber body is configured only of the main body rubber section.

There is described an aircraft configured to be able to hover, comprising a fuselage; and a support element adapted to support a load, made of elastically deformable material and constrained to said fuselage; the support element being movable in an operating position in which it is arranged at least partially outside said fuselage and supports said load; the aircraft comprises a sock surrounding the support element arranged in said operating position; the sock is configured to contain the elastic return of the support element, in case the support element arranged in said operating position is sheared off.

A mooring system 1 includes a first mooring component 2a and a second mooring component 2b. The first mooring component 2a includes a first end plate 4a, a second end plate 6a, and a first compressive

The utility model relates to a spring assembly, a brake master cylinder, a brake assembly and a vehicle. The brake master cylinder comprises a first spring seat, a second spring seat and a spring. The two ends of the spring are connected with the first spring seat and the second spring seat respectively, and the spring is arranged on at least one of the first spring seat and the second spring seat in a sleeving mode; the first spring seat is provided with a first avoiding channel so that at least part of the second spring seat can move relative to the first spring seat in the first avoiding channel in the axial direction of the spring. And / or the second spring seat is provided with a second avoiding channel, so that at least part of the first spring seat moves relative to the second spring seat in the second avoiding channel in the axial direction of the spring. The first spring seat and / or the second spring seat are / is provided with the avoiding channel, so that at least one spring seat can be nested in the other spring seat, and optimization of space layout and reduction of cost are facilitated.

A damper is arranged in at least one of a space between a supported member (1, 2a) and a support element (2b, 2c, 201, 202) or a space between the supported member and a support member (3a, 3b). The damper includes a cushioning member (611) and a protection member (612a, 612b, 612c, 612d). The cushioning member is configured to relax a stress applied to the supported member supported by the support member together with the support element. The cushioning member includes a facing portion (S1) facing the supported member, an opposite portion (S2) opposite to the facing portion, and a side surface portion (S3) between the facing portion and the opposite portion. The protection member is arranged on the side surface portion to cover the cushioning member from the outside of the cushioning member.

The polyurethane foaming vibration isolation pad with the waterproof layer comprises a protective layer, a vibration isolation layer and the waterproof layer, the protective layer is a fabric layer with a flexible interface formed by a woven structure, and the vibration isolation layer is a polyurethane foaming layer which is of a honeycomb structure and has the functions of absorbing vibration energy and buffering impact loads. The upper end face of the waterproof layer is of a wavy structure with wave crests and wave troughs, and the bottom face and the top face of the vibration isolation layer react with the upper end face of the waterproof layer and the bottom face of the protective layer to form an integrated structure without interface layering. The protective layer, the vibration isolation layer and the waterproof layer are combined into a whole to form the vibration isolation pad, the vibration isolation pad has the functions of wear resistance, puncture resistance, vibration absorption and water resistance, the performance limitation of a single material is broken through, the construction procedures are reduced, the construction period is shortened, the construction efficiency is improved, and the vibration isolation pad is suitable for various track foundations, building foundations, precise instrument bases and the like. The modular design supports rapid laying, and the cost is reduced.

The utility model discloses a shock absorber buffer block with a vulcanization combined structure, which belongs to the technical field of shock absorbers and comprises a spring plate and a rubber buffer block, the spring plate is positioned above the rubber buffer block, the spring plate and the rubber buffer block are integrally formed, a plurality of exhaust holes are arranged on the rubber buffer block, and the exhaust holes are communicated with the spring plate. The shock absorber comprises a spring disc, a rubber buffer block is arranged on the spring disc, a first cavity is formed in the rubber buffer block, a polyurethane buffer block is installed in the first cavity, and the polyurethane buffer block and the spring disc form a vulcanization combined structure through the rubber buffer block. The buffering effect in the comfort stage of a vehicle is achieved through the soft polyurethane buffering block, the limiting effect of large impact and large compression is mainly achieved through the vulcanized rubber buffering block, air flowing is accelerated through exhaust holes formed in the side face of the rubber buffering block, and cooling in the structure is achieved; meanwhile, the problem that the polyurethane is broken and damaged too early is also avoided.

The utility model discloses a damping gasket for a heart mechanism of a weft knitting machine, which is characterized in that 2-6 circular through holes are integrally formed in an L-shaped gasket body, and an oblate elastic body is embedded in each circular through hole. According to the utility model, vibration can be effectively buffered.