45results about How to "Avoid lateral forces" patented technology

The invention relates to a damper (1) for furniture, especially for hinges, comprising a housing (2) in which a piston (4) connected to a piston rod (3) is received in a mobile manner. When the piston (4) is displaced, a fluid flows inside the housing (2) through a flow channel (20) arranged on or in the piston (4), a different damping force being generated when the piston (4) is displaced in different directions. Parts of the cross-section of the flow channel (20) can be modified by displacing the piston (4) in relation to a plate (6), the plate (6) and/or the piston (4) comprising radially extending grooves forming at least part of the flow channel (20).

The invention provides a side-by-side type rotary piston internal combustion engine and belongs to the technical field of reciprocating piston type internal combustion engines. Referring to a figure (4), the side-by-side type rotary piston internal combustion engine comprises a main shaft 1, a clamping plate 2, a right end cover 3, an air guide plate 4, a public end cover 5, a nut 6, a bolt 7, a compression cylinder 8, an acting cylinder 9 and a left end cover 10. The main technical characteristics of the side-by-side type rotary piston internal combustion engine are that one cylinder completes air intake and compression, the other cylinder completes acting and exhausting, the two cylinders are connected side by side, and the well compressed air is conveyed to the acting cylinder in time through the rotating air guide plate between the two cylinders so that acting and exhausting can be completed. The side-by-side type rotary piston internal combustion engine has the advantages that during acting, high-pressure air can directly push the main shaft to rotate, the fuel efficiency is greatly improved, and the size is reduced; under the condition of the same output torque or the same power, the cylinder capacity can be reduced by 30% or over, and the size can be reduced by 50% or over; and an intake hole and an exhaust hole are normally open, additional arrangement of an air distributing mechanism is not needed any more, and other performances are all superior to those of the reciprocating piston type internal combustion engine.

A tension clamp (19) includes a band (20) surrounding an object to be fastened and a buckle (21) arranged on the inner band end portion (22) and surrounding the band (20), with the outer band end portion (23) extending through the buckle (21). A tool for mounting the tension clamp includes a holding device for holding the buckle (21) along with the band (20) surrounding the object to be fastened, a tensioning device for tensioning the band (20) round the object to be fastened by applying tension to the outer band end portion (23), a locking device (50) for locking the buckle (21) on dem band (20), and a severing device for cutting off excessive band length. The locking device (50) has plier jaws (54) adapted to be inserted into lateral windows (25) of the buckle (21) for deforming side edge portions (24) of the other band end portion (23).

A cord hook for fastening a jump mat to a trampoline frame includes a holding section for holding a first and a second loop end section of the cord loop and a fastening section for fastening the flexible band element, wherein a main tension vector (V) is defined by tension at the band element. The hook has a transition section connecting the holding section and the fastening section and is designed in such a way that a straight line (g) through the main tension vector (V) divides the holding space into a first partial space and a second partial space in such a way that, when the cord hook is used as intended, the first loop end section lies in the first partial space and the second loop end section lies in the second partial space. Also disclosed are a trampoline and a method for fastening the jump mat.

The present invention relates to a cutting rule 1, comprising a steel band 10 with a cutting edge 20, a back 30 of the steel band 10 opposite to the cutting edge 20, wherein the back 30 comprises protrusions 32 which during the first use of the cutting rule 1 can be plastically deformed and wherein the protrusions 32 essentially comprise a height h of 30%-70% of the thickness D of the steel band 10. Further, the present invention relates to a cutting rule 1, comprising a steel band 10 with a cutting edge 20, a back 30 of the steel band 10 opposite to the cutting edge 20, wherein the back comprises protrusions 32 that can be plastically deformed during the use of the cutting rule 1 and wherein the protrusions 32 have been produced by grinding or milling of recesses 36 in transverse direction Q of the steel band into the back 30; as well as a cutting rule 1 whose back 30 is surface decarburized such that it can plastically deform during the first use of the cutting rule 1.

The invention discloses a paper box die-cutting process and relates to the field of packaging. A die-cutting plate is manufactured by virtue of 7 process steps, namely die-cutting graph drawing, template cutting, cutter line and indentation line loading, checking, die-cutting rubber strip gluing, trial base plate cutting and putting into operation; the paper box die-cutting process is simple in process and high in preparation rate; the die-cutting plate manufactured is good in quality; the production efficiency is improved and the production cost is reduced.

The invention relates to a device for detecting concrete strength by a common bearing platform hoop method and a detection method thereof, the device for detecting the concrete strength by the common bearing platform hoop method comprises a bearing platform in-situ hoop device, and the bearing platform in-situ hoop device comprises a datum plate (bearing platform), an automatic drilling and grinding machine and an automatic in-situ hoop instrument. According to the detection method for detecting the concrete strength by the hoop method, firstly, a hole is drilled in a to-be-detected concrete member, the datum plate is fixed to the to-be-detected member through an expansion pipe bolt hole by using an expansion pipe bolt, then a test piece is prepared, and finally, a detection result is automatically calculated. The equipment and the detection method have the advantages that the detected concrete test piece is prevented from bearing lateral force in the test process, it is guaranteed that the end face of the concrete test piece is perpendicular to the axis, it is guaranteed that the side face of the concrete test piece is straight and smooth, the purpose of manufacturing a standard concrete test piece on site is achieved, and the detection precision is remarkably improved.

The invention relates to the technical field of the hydrostatic test device of the cast pipe, specifically hydrostatic testing equipment for an ultra-large drift diameter cast pipe, and relates to hydrostatic test devices in different structural forms and with drift diameters at DN1600-2200 pipe fitting. The hydrostatic testing equipment comprises a mounting support frame, a main cylinder, side cylinders, side cylinder driving mechanisms, a moving trolley and tools, wherein the mounting support frame is a hollow-square shaped frame structure; the main cylinder is arranged at a middle locationof an upper part of the mounting support frame; the side cylinder is arranged at a side cylinder driving mechanism; the side cylinder driving mechanism can move along an upright under the driving of alifting cylinder; the moving trolley is arranged at a lower part of the mounting support frame; a tee pipe fitting is arranged on the moving trolley and moved to the center of the mounting support frame; an upper part port of the tee pipe fitting is blocked by the tool on the main cylinder, the middle port is blocked by the tool on the side cylinder at the left side (or right side), and the otherside cylinder provides support force balance, and the lower part is blocked by the tool on the moving trolley.

The invention discloses a dismounting device. The dismounting device comprises a base and a top beam, wherein a guide mechanism is arranged between the base and the top beam; a first power device is hinged between the base and the top beam, which are located on the two sides of the guide mechanism; the base is further provided with a slide seat, which is driven by a second power device, in a sliding manner; and the slide seat is internally and vertically provided with at least two grasping mechanisms, which are driven by a third power device, in a sliding manner. With the adoption of the dismounting device disclosed by the invention, the labor intensity of workers is greatly alleviated, and the working efficiency and the working safety are improved; and meanwhile, a top plate is supported stably and reliably, a danger that the top plate cap falls off is avoided, and thus the working safety is further improved.

The invention discloses a vertical movement platform with the horizontal bearing capacity. The vertical movement platform comprises an actuator, a bearing frame, a steel wire rope, a leading-in pulley, a leading-out pulley, a motor, a motor support, a lead screw, a sliding block, a sliding plate, a spring, a bearing bolt, a leading-in hole, a guide bolt, a pulley seat, a support hole, a bearing bolt positioning hole, a sliding plate, a leading-out hole, a lead screw support, a sliding plate guide hole, a passive clearance, an active clearance, a pulley seat guide hole, a positioning guide holeand a guide bolt positioning hole. According to the vertical movement platform, automatic space positioning of the stretching position of the steel wire rope is achieved. Through fastening of the bearing bolt, the pulley seat and the bearing frame are fixedly connected, the borne large load is transmitted to the bearing frame through the pulleys and the pulley seat, and the horizontal force borneby the lead screw can be adjusted through the rigidity of the spring. According to the vertical movement platform, the space adjustment of the output position of loading force is achieved, the loading force totally acts on the bearing frame, and the lead screw is prevented from bearing large horizontal loads.

The invention discloses a basic structure element dynamic experiment device for heat and vibration environments and a loading method of a static load thereof, and belongs to the technical field of structure dynamic experiment. The device has the advantage that the boundary condition of the surrounding of a testing object is realized by a clamp and a base, and the tension force of an elastic rope is converted into the pressure of the tested structure member by the highly elastic rope and a force transfer rod which is made of light-weight and high-rigidity material. The static loading method has the advantages that the implementation is feasible, the static load and the error in the vibration process can be accurately predicted and measured, the heat effect is little, the influence by additional mass is little, the stability in the vibration environment is good, and the influence on sound fields is little.

The invention belongs to the field of fixing devices, and discloses a dual-body track fixing device. The dual-body track fixing device comprises a fixing base; the middle part of the fixing base is provided with two T-shaped openings; each T-shaped opening is provided with a hopper-shaped bolt; the upper part of the fixing base is also connected with an upper cover; the middle part of the upper cover is provided with two bolt openings; the other ends of the hopper-shaped bolts pass through the bolt openings; the upper part of the upper cover is also provided with two tooth-shaped cushion plates. The invention aims to provide the dual-body track fixing device which is solid, durable, is unique in structure, is safe and convenient, is wide in application, and the overhauling expense is reduced greatly.

An automated large outside diameter preform tipping process. A zone of the preform is heated inside a furnace and softened. The preform tip is shaped and the process is controlled by the movement of the glass above and below the heating zone and by sensing the weight of the lower part of the preform, which in effect is a measure of the viscosity of the softened material. Once the correct viscosityis reached, the bottom holder is moved away from the top holder with a non-linear, accelerated velocity profile (derived from the FEM simulation of glass flow) which is precisely programmed and controlled so that the preform tip is optimally shaped (usually short and sharp tipped) with minimum waste and waveguide distortion when drawn into a fiber. The same concept of the non-linear, acceleratedvelocity profile can also be applied to other tipping processes such as horizontal preform tipping processes.

Device for loosely binding printed sheets to form booklets (10) using a loop-like wire binding element (41) comprises two C-shaping devices (50, 50') and two O-shaping devices (60, 60'). The C-shaping devices are positioned so that the initially flat wire binding element is bent into a C-shape. The O-shaping devices are positioned so that the C-shaped wire binding element is bent into a closed shape.

The invention relates to the field of metallurgical equipment, in particular to a heavy reduction withdrawal and straightening machine of a billet caster, and a withdrawal and straightening machine hydraulic control system and control method. A displacement sensor is arranged in each withdrawal-and-straightening-machine servo hydraulic cylinder, and hydraulic loops of a piston cavity and a rod cavity of each servo hydraulic cylinder are connected with pressure sensors respectively. The two withdrawal-and-straightening-machine servo hydraulic cylinders are used for controlling the lifting and down pressing of an upper roller of the heavy reduction withdrawal and straightening machine, a heavy reduction balance cylinder is used for lifting the upper roller of the withdrawal and straighteningmachine, the heavy reduction balance cylinder adopts the pressure reduced by connecting the rod cavity with a three-way pressure reducing valve, the pressure of the three-way pressure reducing valveis set, it is guaranteed that the upper roller of the heavy reduction withdrawal and straightening machine makes tight contact with the piston rod ends of the two withdrawal-and-straightening-machineservo hydraulic cylinders all the time, the pressure sensors are used for compensating for equipment gaps and equipment deformation in the working process of the heavy reduction withdrawal and straightening machine, and the needed equipment control precision is achieved.

The application relates to a hydraulic loading system. The hydraulic loading system comprises a loading platform and at least two hydraulic loading components used for exerting pressure onto the loading platform, as well as a control component, wherein the control component adjusts the pressure output by each hydraulic loading component based on the corresponding relationship between the pressure output by the hydraulic loading components and displacement of the position, at which the hydraulic loading components on the loading platform exert pressure on the loading platform and a predetermined point. By adoption of the hydraulic loading system, the hydraulic loading components are prevented from action of a lateral force, and accordingly, abrasion of the hydraulic loading components is avoided.

The invention discloses a pressure head capable of reducing the lateral bending risk for upward bending supplement straightening of an end part of a steel rail, and belongs to the technical field of metallurgy. The pressure head capable of reducing the lateral bending risk for upward bending supplement straightening of the end part of the steel rail comprises a pressure head body and is characterized in that the pressure head body is of a cuboid structure, and the downward pressing surface, used for being in downward pressing contact fit with the arc-shaped tread of a head part of the steel rail, of the pressing head body is of a plane structure. According to the pressure head capable of reducing the lateral bending risk for upward bending supplement straightening of the end part of the steel rail, by analyzing the problem that a traditional cambered surface pressure head structure easily causes the lateral bending of the steel rail in the process of the upward bending supplement straightening operation on the end part of the steel rail and a mechanism thereof, the invention provides a pressure head form for improving the cambered surface pressure head into the plane structure, in this way, the downward pressure applied to the arc-shaped tread of the head part of the steel rail by the pressure head is always at the highest point of the arc-shaped tread in the upward bending supplement straightening operation process, the generation of lateral component force on the steel rail can be effectively avoided, and then the lateral bending risk in the straightening process can be effectively reduced.

The invention discloses an upper electrode uncovering structure and semiconductor processing equipment. The uncovering structure comprises a first lifting mechanism located below the upper electrode,wherein the first lifting mechanism can independently drive the upper electrode to ascend and descend in the vertical direction in a preset first lifting stage and keep the whole upper electrode in ahorizontal state, so that the upper electrode is switched between a process position and an initial cover opening position; a second lifting mechanism which is located on the side of the upper electrode and connected with the upper electrode, wherein the second lifting mechanism can independently drive the upper electrode to ascend and descend in the vertical direction in a preset second lifting stage, so that the upper electrode is switched between the initial uncovering position and the target uncovering position, and the initial uncovering position is located between the process position and the target uncovering position. The conductive function of the induced coil can be remarkably improved, good electrical conduction between the upper electrode and the cavity is effectively guaranteed, meanwhile, radio frequency leakage can be avoided, and the process result is improved.