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3429 results about "Coil spring" patented technology

A coil spring, also known as a helical spring, is a mechanical device which is typically used to store energy and subsequently release it, to absorb shock, or to maintain a force between contacting surfaces. They are made of an elastic material formed into the shape of a helix which returns to its natural length when unloaded.

Retractable flexible gate

A manually pullable out and automatically retractable flexible barrier apparatus for engagement between first and second surfaces having a base that includes a foot, a head, and a spool portion between the foot and the head that spools in and spools out the flexible barrier. A coil spring is wound about a nonrotatable support tube in the spool, is fixed to the top of the nonrotatable support tube, and is further fixed to a lower cap in the spool that rotates with the spool. An upper cap in the spool, rotating with the spool, is lockable and unlockable to a rotating control knob in the head.
Owner:REGALO INTERNATIONAL LLC

Flexible continuum joint, flexible robotic arm, and minimally invasive surgical robot for tem

The present invention relates to a flexible continuum joint, a flexible robotic arm, and a minimally invasive surgical robot for TEM. The flexible continuum joint comprises a double-helix structure formed by two helical springs, wherein a central channel is provided inside the double-helix structure, a hollow tube arranged coaxially with the double-helix structure is provided in the central channel, and a plurality of notches are formed on the hollow tube. The flexible robotic arm is composed of a linkage joint formed by an active section and a passive section, and an end joint, wherein the active section and the end joint are both driven by a drive wire, and the passive section is driven by a nickel-titanium alloy rod. The minimally invasive surgical robot comprises an endoscopic arm and two robotic arms, and has 19 degrees of freedom overall. In addition, the provision of the linkage joint in the flexible robotic arm and the application of a hybrid drive mode combining a drive wire and a nickel-titanium alloy rod not only reduces the number of drives, but also avoids the problem of motion coupling between joints, thus effectively overcoming the problems of insufficient degrees of freedom and poor motion accuracy in existing minimally invasive surgical robots for TEM.
Owner:TIANJIN UNIV +1

Intelligent safety control belt collecting and tensioning device

The utility model discloses an intellectualized safety control take-up straining device, including handle subassembly, base subassembly and long braid, handle subassembly includes handle and ratchet wheel, base subassembly includes base, handle and base are pivoted and rotatingly connected through take-up shaft, ratchet wheel is fixed on take-up shaft, and the winding drum is fixed between the ratchet wheel, and the long braid is fixed on the base. The ratchet wheel, the winding drum and the tape winding shaft rotate synchronously, the winding drum is sleeved outside the tape winding shaft and is coaxially arranged, an opening for the long braid to pass through is arranged on one side of the winding drum, one end of the long braid is sleeved on the tape winding shaft and is led out from one end of the base through the opening on the winding drum, one end of the tape winding shaft is connected with the coil spring assembly, and the coil spring assembly comprises a coil spring, a coil spring box and a coil spring box cover. The coil spring box is covered with the coil spring box, a brake assembly is further arranged in the coil spring box, and one end of the tape winding shaft can be provided with a C-shaped opening, an eccentric shaft or a concentric screw hole according to the structure of the brake assembly. According to the utility model, the long braid can be prevented from swinging to hurt an operator, and the personal safety of the operator is guaranteed.
Owner:TAIZHOU RUNJIE LOGISTICS SAFETY EQUIP TECH CO LTD

Extendable spring-loaded bumper assembly

A vehicle-bumper assembly for a vehicle includes a vehicle bumper and a rod. The rod has a first end fixable to the vehicle bumper and a second end spaced from the first end along an elongated axis of the rod. A collar is fixed to the rod between the first end of the rod and the second end of the rod. The collar includes a pyrotechnically-activated release releasable from the rod. A coil spring has an inner diameter sized to be received by the rod.
Owner:FORD GLOBAL TECH LLC

Surface grinding machine

The invention relates to the technical field of grinding machines, and discloses a surface grinding machine which comprises a rotary type grinding mechanism and a linkage type pressure applying mechanism. A hollow rotating column which can rotate along with the second butt-joint plate and is in a hollow state, a fifth butt-joint plate which can axially move along the hollow rotating column and rotate along with the hollow rotating column, and a spiral spring which generates downward elastic pressure on the fifth butt-joint plate are arranged in the second butt-joint plate. According to the surface grinding machine, the basic circular motion type grinding effect of the plane grinding disc on the surface of an object is utilized, and the relative motion of the built-in grinding block around the petal-shaped closed sliding groove is combined, so that the grinding block can generate radial reciprocating motion relative to the rotating axis on the surface of the object, and the grinding efficiency of the object is improved; the two kinds of grinding movement are from the same driving motor, and therefore the effective utilization rate of the driving motor can be effectively increased.
Owner:YANGZHOU GUANGKAI MASCH TECH CO LTD

Gas generator

A gas generator includes an igniter, a partition member that axially partitions a space in the inside of a housing into a gas generating agent accommodation chamber and a filter chamber, and a gas generating agent and a coil spring accommodated in the gas generating agent accommodation chamber. The coil spring is interposed between the partition member and the gas generating agent and fixes the gas generating agent while it keeps the gas generating agent away from the partition member. V1 represents a volume of the gas generating agent accommodation chamber and V2 represents a volume of a non-filled space which is a space where the gas generating agent is not arranged in the inside of the gas generating agent accommodation chamber as a result of arrangement of the coil spring, where V1 and V2 satisfy a condition of 0.05≤V2 / V1≤0.32.
Owner:NIPPON KAYAKU CO LTD

Pile foundation concrete pouring over-pouring height measuring device

The utility model provides a pile foundation concrete pouring over-pouring height measuring device which comprises an installation frame, a winding drum mechanism arranged on the installation frame, a coil spring arranged in the winding drum mechanism, a measuring rope with one end fixed and wound on the winding drum mechanism and a fixing piece connected with a reinforcement cage. The fixed part is arranged on the mounting frame, the floating ball mechanism is movably connected to the fixed part and connected with the other end of the measuring rope, the ratchet wheel is fixedly connected to the winding drum mechanism, and the alarm mechanism is arranged on the mounting frame and used for being matched with the ratchet wheel. The pile hole concrete surface ascends to push the floating ball mechanism to ascend, and then under the action of the coil spring, the winding drum measuring rope is driven to be shortened, the winding drum mechanism and the ratchet wheel are driven to rotate, so that the alarm mechanism matched with the ratchet wheel sends out a signal to remind constructors of the concrete pouring condition, and accurate control over the over-pouring height is achieved. Tediousness and uncertainty of manual judgment are avoided, and construction efficiency and construction quality of the pile foundation are effectively improved.
Owner:中电建路桥集团有限公司

COC aging test device

The utility model belongs to the technical field of chip detection devices, and particularly provides a COC aging test device which comprises a fixed assembly, a movable assembly, a spiral spring, a guide column, a mounting assembly and a plurality of groups of probes, the fixed assembly is provided with an abutting surface, and the spiral spring is connected to the movable assembly and the fixed assembly and can drive the movable assembly to move in the direction close to the abutting surface. A clamping space for clamping a COC is formed between the movable assembly and the abutting surface, the guide column is arranged on the fixed assembly, the mounting assembly is provided with a guide hole, the mounting assembly performs lifting motion through cooperation of the guide hole and the guide column, and the multiple groups of probes are all arranged on the mounting assembly. According to the COC aging test device, a metal plate elastic piece is not needed, the spiral spring is used for driving the movable assembly to move towards the abutting face to clamp and fix the COC, in addition, the installation assembly drives the multiple sets of probes to descend at the same time, multiple independent lifting mechanisms do not need to be arranged to drive the multiple sets of probes to ascend and descend, and therefore the manufacturing cost of the COC aging test device is reduced.
Owner:SHENZHEN SHANMEI HIGH TECH RES INST CO LTD

Electromechanical actuator and shading device comprising such an electromechanical actuator

An electromechanical actuator comprises a casing, an electric motor, a gearbox, a spring-applied brake (25), and a centring shaft (71). The brake (25) comprises a coil spring (48), a drum (49), an input member (50) and an output member (51). The output member (51) comprises a first bore (73). The shaft (71) is mounted inside the first bore (73) of the output member (51) and a bore of a sun gear (40) of a reduction stage (38) of the gearbox. The drum (49) comprises a shoulder (90). Furthermore, a planet carrier (66) of the reduction stage (38) is configured to bear against the shoulder (90) of the drum (49).
Owner:SOMFY ACTIVITES SA

Automobile chassis suspension damping device

The invention relates to the technical field of automobiles, and provides an automobile chassis suspension damping device which comprises a working cylinder, a multi-stage damping execution unit is arranged in the working cylinder, the multi-stage damping execution unit comprises a plurality of movable damping assemblies which are sequentially arranged in the axial direction of the working cylinder, and a fluid channel structure is arranged in each damping assembly. According to the invention, the defects in the prior art are overcome, the design is reasonable, the structure is compact, accurate grading adjustment of damping force under different vibration amplitudes is realized by arranging the three movable damping assemblies and the stepped distributed fluid channel structure, when a vehicle runs on a stable road surface, only the first piston cooperates with the spiral spring to work, the damping force is small, and the damping effect is good. The daily stable road condition requirement is met; when the vehicle runs on a bumpy road surface, the second piston and the third piston are triggered in sequence along with the increase of the vibration amplitude, the damping force is gradually increased, and the comfort of people in the vehicle is greatly improved when the vehicle runs under different road conditions.
Owner:WUXI ZHENGLONGXIANG MACHINERY MFG

Rotary shell pump

The invention belongs to the technical field of rotary shell pumps, and relates to a rotary shell pump. The rotary shell pump comprises a rotary shell pump body, a filtering mechanism is arranged in a water inlet in the rotary shell pump body, and the filtering mechanism comprises a first connecting base, a rotating piece and a plurality of filter screen assemblies; a fixing ring is fixedly installed in the water inlet, and the first connecting base is rotationally arranged in the fixing ring. In the running process of the rotary shell pump body, the first connecting base rotates and drives the coil spring to be tightened, so that the driving column moves towards the interior of the rotary drum, then limiting on the rotating piece is relieved, the coil spring drives the rotating piece to rotate when rotating in a reset mode, and under the action of centrifugal force, the rotating piece rotates. And the filter screen, which is not adsorbed with the connecting disc, in the filter screen assembly extends into the cleaning cavity to be washed. And in the process that the driving column moves into the rotary drum, the connecting disc rotates under the action of the transmission assembly, so that the first filter screen assembly and the second filter screen assembly can alternately enter the cleaning cavity for washing, and improvement of the filtering efficiency is facilitated.
Owner:JIANGSU HAISHI PUMPS MFG CO LTD

Toothbrush

A toothbrush includes a brush head linkage (100), a connecting mechanism (200) and a toothbrush handle (300); the connecting mechanism (200) includes a first connector (210), a second connector (220) and an elastic structural element (230) connected to the second connector (220); the first connector (100) is rotatably connected to the second connector (220), and the axis of rotation extends in a front-rear direction; and the elastic structural element (230) includes at least one return torsion spring (231), the return torsion spring (231) includes a helix spring (2311) in the form of a cylinder with an opening of the cylinder oriented in a direction parallel to an extension direction of an oscillating reference line, the helix spring is in stop fit with the second connector (220) in a direction perpendicular to the oscillating reference line, and the return torsion spring further includes a first torsion bar (2311) and a second torsion bar (2312) respectively connected to a front end and a rear end of the helix spring (2311). The toothbrush according to the present disclosure can protect teeth.
Owner:SHANGHAI SHIFT ELECTRIC CO LTD

Method of making string of springs for use in pocketed spring assembly

A method of making a string of springs (26, 26a) for use in a pocketed spring assembly (12, 12a, 12c, 12d) comprises folding one piece of fabric into first and second opposed plies (47, 49) of fabric. An oversized pocket (34) is formed along each string by transverse seams (52) joining the first and second plies (47, 49). The oversized pocket (34) is separated into a spring pocket (46) and a mini-pocket (48) by a separating seam (44). A coil spring (36) is positioned in each spring pocket (46). Foam chemicals are injected into the mini-pocket (48). The foam chemicals react in the mini-pocket (48) to create a foam pad (54).
Owner:L & P PROPERTY MANAGEMENT CO

Detection device for constant-force combined spiral spring support hanger

The invention relates to the field of spring supports and hangers, in particular to a constant-force combined spiral spring support and hanger detection device which comprises side supporting plates fixedly connected to the two sides of a main carrying plate and further comprises a support and hanger body located between the two side supporting plates, a mounting plate is fixedly connected to the top of the support and hanger body in a clamped mode, and an end cover is arranged at the top of the support and hanger body. The edge of the end cover is fixedly connected with an external thread ring plate, and a spring body is arranged in the support hanger body. According to the invention, spring bodies under different compression displacements can be detected according to actual demands, the maximum compression displacement of the spring bodies can be adjusted, the detection range of the spring supports and hangers is significantly improved, constant-force spring supports and hangers of different specifications and sizes can be positioned and arranged, the applicability and the stability are good, and the working efficiency is improved. And transverse deviation of the constant-force spring support hanger in the detection process can be avoided, it is ensured that the constant-force spring support hanger is always in a vertical state, and the detection accuracy can be improved.
Owner:JIANGSU TENGSHENG PIPELINE EQUIP CO LTD

Hydraulic lift for vehicle suspension

A hydraulic life actuator for adjusting a height of a vehicle includes: a damper tube including a closed end; a damper rod protruding from the damper tube opposite the closed end; a sliding spring seat disposed annularly around the damper tube and configured to engage a coil spring; a support collar disposed annularly around the damper tube and fixed to the sliding spring seat, wherein the support collar is configured to translate axially relative to the damper tube; a lifting bracket connected to the support collar and protruding radially from the support collar; and a hydraulic cylinder disposed adjacent and parallel to the damper tube and having a lift piston rod disposed extending outwardly therefrom, wherein the lift piston rod is connected to the lifting bracket and configured to actuate the sliding spring seat between a retracted position and an extended position spaced apart from the closed end.
Owner:BEIJING WEST IND CO LTD

Multi-station rivet welding device for aluminum alloy vehicle body

The invention discloses a multi-station rivet welding device for an aluminum alloy vehicle body, which belongs to the technical field of welding and comprises a step plate, a tapping and drilling mechanism, a cleaning mechanism and a friction stir welding mechanism. The tapping and drilling mechanism is used for machining a prefabricated hole with threads on the inner wall in a material piece to be welded, and the automatic screw feeding device further comprises a multi-station moving driving mechanism and an automatic screw feeding mechanism which is arranged below the step plate. When the tapping and drilling mechanism descends to conduct prefabricated hole machining on two materials to be welded, the overturning guide cylinder is overturned to the horizontal position through the resilience force of the coil spring in the descending process and is in matched butt joint with the conveying pipe, and the conveying pipe is driven by the corresponding electric telescopic rod to convey stored rivets into the overturning guide cylinder; and the overturning guide cylinder is overturned to the vertical position and is in butt joint to the position below the prefabricated hole, and automatic feeding and mounting of the rivets are facilitated.
Owner:HEFEI HARGONG AUTOMOTIVE INTELLIGENT SYST CO LTD

Stacking column

The invention relates to a stacking column for storing stored goods one above the other or next to each other at mutual distances on a pawl (5.1-5.6), which is rotatably mounted between two side walls (1.1, 1.2) on an axle pin, wherein the two side walls (1.1, 1.2) form a U-body (3) with a common rear wall (2), wherein the U-body (3) comprises a foot plate (4), wherein the pawl has a linkage bolt (9), wherein the linkage bolt (9) is movable within a curved slot (8) of the side wall (1.1, 1.2) and thus mobilizes the pawl (5.1-5.6), wherein the linkage bolt (9) is extended through one of the side walls (1.1, 1.2), wherein the linkage bolt (9) slides from the ready position into the working position along an bevel (11) of a locking link (14) and thereby brings the locking link (14) from an initial position into a locking position, wherein the locking link (14) is moved between the side wall (1.1, 1.2) and a slider (19), wherein the locking link (14) has an axis of rotation (13) and a spring fixation (12), wherein a helical spring (20) is arranged between the spring fixation (12) and an anchor point (10), wherein the spring fixation (12) is arranged through a recess (15) of the slider (19) away from the locking link (14) through the recess (15) of the slider (19) and the coil spring (20) is arranged between the anchor point (10) and the spring fixation (12).
Owner:MTS MASCHENBAU GMBH

Vibrating device for forming concrete test piece

The invention relates to the technical field of concrete test piece forming, in particular to a concrete test piece forming vibrating device which comprises a base, a top plate, a vibrating plate, a vibrating motor, a damping spring, a fixing assembly, a moving assembly, a power supply module, a protective shell and the like. A top plate is connected to the base, a vibrating plate is slidably connected to the middle of the base, at least four damping springs are connected to the bottom of the vibrating plate in the circumferential direction, the damping springs are fixedly connected with the base, a vibrating motor is installed at the bottom of the vibrating plate, a fixing assembly is connected to the vibrating plate, and a moving assembly is connected to the top plate. The moving assembly is connected with a power supply module and a protective shell. The connecting block, the sliding sleeve, the spiral spring and the baffle are arranged, the baffle can prevent concrete in the test piece mold from overflowing, subsequent repairing work is reduced, the spiral spring can enable the baffle to automatically adjust the position according to needs, and effective covering on the surface of the concrete is maintained.
Owner:HE NAN XIN LIAN TUO JIAN SHE GONG CHENG YOU XIAN GONG SI XIN XIANG FEN GONG SI

Handheld pipe inner wall rust removal tool

ActiveCN112338728BImprove rust removal qualityImprove the atmospheric environmentElectric machineCoupling
The present invention discloses a handheld pipeline inner wall rust removal tool, comprising a plurality of wire brushes, a rotating body, a spiral spring coupling, a driving motor, a first hollow connecting rod, a second hollow connecting rod, a plurality of wire brush radial adjustment mechanisms, a compressed air delivery mechanism and a vacuum cleaner connecting hose, wherein the plurality of wire brushes are radially evenly distributed, one end of the rotating body is connected to one end of the driving motor shaft through a spiral spring coupling, and the other end of the driving motor is connected to the first hollow connecting rod and the second hollow connecting rod in sequence. The radial adjustment mechanism of the wire brush comprises a brush handle, a brush handle barrel and a tension spring of the wire brush, and the brush handle barrel cooperates with the lower end of the brush handle of the wire brush to form a cylinder. The present invention can complete the grinding and rust removal of the circumferential surface of the pipeline inner wall in the area where the wire brush is located at one time, significantly improves the rust removal quality of the pipeline inner wall, greatly improves the rust removal efficiency, effectively improves the air environment of the workplace, and protects the health of the on-site operators.
Owner:CSSC MARINE POWER

Production process of automotive suspension spiral spring

The invention discloses a production process of an automobile suspension spiral spring, and relates to the technical field of springs, and the production process is characterized by comprising the following steps of raw material inspection, raw material processing, spring rolling, heat treatment, shot blasting treatment, surface spraying and finished product detection. The production process of the automobile suspension spiral spring is good in flow continuity and high in production efficiency, in the surface spraying procedure, all steps are divided into three stations to be operated, blanks are continuously conveyed through the circulating conveying belt, an automatic circulating spraying machining assembly line is formed, the automation degree is high, the spraying efficiency is high, and the production efficiency is high. And manual interference is reduced, the defective rate can be reduced by means of assembly line operation, the finished product quality of the spiral spring is guaranteed, and therefore the quality control stability is improved.
Owner:ZHEJIANG JINCHANG SPRING CO LTD

Constant torsion force generator and real-time constant-force tension device

A constant torsion force generator and a real-time constant-force tension device. The constant torsion force generator comprises: a rotatable power output member; and constant-force coil springs (14), one end of each of the constant-force coil springs being fixed, and the other end thereof being fixed to the power output member. The real-time constant-force tension device comprises: a rotatable rotating shaft (20); a reel (40), around which a draw cord is wound, and which can drive the rotating shaft (20) to rotate; and an independent constant torsion force generator, comprising a rotatable power output member and at least one constant-force coil spring (14), wherein a power connection is formed between the power output member and the rotating shaft (20); the at least one constant-force coil spring (14) is arranged beside the power output member; and one end of each constant-force coil spring (14) is fixed, and the other end thereof is fixed to the power output member. The present invention can replace a weight to generate a torsion force and a tensile force, and has the advantages of being portable, space-efficient, easily stored, low in cost, and adjustable, providing a real-time constant force, etc.
Owner:LI SIPING

Electromechanical actuator and shading device including such an electromechanical actuator

An electromechanical actuator comprises a casing, an electric motor, a gearbox, a spring-applied brake (25) and a centring shaft (71). The brake (25) comprises a coil spring (48), a drum (49), an input member (50), an output member (51) and a bushing (76). The input member (50) comprises a first bore (72). The output member (51) comprises a first bore (73) and a second bore (74). The shaft (71) is mounted inside the first bore (73) of the output member (51) and a bore of a sun gear of a reduction stage of the gearbox. The bushing (76) comprises a bore (77), inside which the shaft (71) is mounted. The bushing (76) is mounted inside the first bore (72) of the input member (50) with an interference fit and inside the second bore (74) of the output member (51) with a loose fit.
Owner:SOMFY ACTIVITES SA

A novel combined vibration damping device with adjustable stiffness and damping

The present invention discloses a novel combined vibration damping device with adjustable stiffness and damping, which relates to the technical field of vibration damping; it includes a magneto-resistive stress negative stiffness spring located inside the housing and a piezoelectric friction assembly located inside the bearing seat; a central shaft is connected between the two, and a metal helical spring is sleeved outside the central shaft. The bottom of the metal helical spring is connected to a spring base located at the top of the housing, and the top of the metal helical spring is connected to the bottom of the bearing seat; the central shaft is fixedly connected to the top inside the housing through a metal cross leaf spring. The magneto-resistive stress negative stiffness spring and the metal cross leaf spring can be connected in parallel to achieve the adjustment of quasi-zero stiffness, and the piezoelectric friction assembly can achieve the adjustment of damping; a load platform is fixedly arranged at the top of the bearing seat. The present invention has non-linear frequency-varying characteristics of high static stiffness - low dynamic stiffness, large low-frequency damping - small high-frequency damping, and can well solve the contradiction between the bearing capacity and the vibration damping frequency band, as well as the contradiction between high-frequency and low-frequency vibration attenuation, and achieve high-performance vibration damping.
Owner:SHANGHAI UNIV

Surface polishing device with cleaning function for aluminum cylinder production

The invention relates to the technical field of aluminum cylinder production equipment, and discloses a surface polishing device with a cleaning function for aluminum cylinder production. Comprising a gas expansion type positioning mechanism, an elastic abutting type pre-tightening mechanism, a sponge wiping body and a spiral spring, wherein the sponge wiping body abuts against the bottom surface of the flexible grinding belt and can wipe residues on the surface of the flexible grinding belt, and the spiral spring provides upward elastic pressure for the sponge wiping body. According to the surface grinding device with the cleaning function for aluminum cylinder production, the outer circumferential face of an aluminum cylinder is ground through a flexible grinding belt, and the flexible grinding belt in part of the area can be attached to the outer portion of the aluminum cylinder in a wrapping mode, so that the grinding area and the bending degree of the aluminum cylinder are improved, and the grinding efficiency is improved. And the bending degree can be adaptively changed along with the contact surfaces of the aluminum cylinders with different sizes, so that the aluminum cylinders with different sizes can be effectively ground, and the grinding application range of the equipment is widened.
Owner:HEFEI QIYUE SPRING MFG CO LTD

Glass fiber dipping device

The invention discloses a glass fiber dipping device, which belongs to the field of glass fiber processing, and comprises a dipping box body, two sides of the upper surface of the dipping box body are rotatably connected with first guide rollers, and two sides of the inner surface of the dipping box body are rotatably connected with second guide rollers; a monitoring assembly used for monitoring the height of the liquid level in the dipping box body is arranged on one side of the dipping box body, and a tightness adjusting assembly is arranged in the middle of the front side and the rear side of the inner surface of the dipping box body. According to the glass fiber conveying device, conveying can be achieved, glass fibers can become loose gradually, the extrusion force of the glass fibers on the connecting roller becomes small, a coil spring can drive a rotating plate to rotate reversely by a certain angle, and a driving groove drives the connecting roller to expand towards the periphery gradually in the rotating process and tighten the loose glass fibers; the glass fibers are effectively ensured to be always in a tight state in the impregnation box body, the glass fibers are ensured to be conveyed more smoothly, the impregnation of the glass fibers is ensured to be more uniform, and the impregnation quality of the glass fibers is improved.
Owner:YANGZHOU HUASHANG NEW MATERIAL CO LTD

Self-adjusting roller cleaning device for cold rolling mill

The invention relates to the technical field of cold rolling mills, and discloses a self-adjusting roller cleaning device for a cold rolling mill, which comprises a combined cleaning mechanism and an elastic pressure reducing mechanism, the interior of the longitudinal hollow shell is in a hollow state, and the longitudinal hollow shell is installed in the rectangular hollow body. The movable valve plate enables liquid to flow from bottom to top in a one-way mode. The second spiral spring exerts downward elastic pressure on the movable valve plate. According to the self-adjusting roller cleaning device for the cold rolling mill, a cold rolling roller is cleaned in a combined mode of a scraper and a grinding belt, the scraping effect of the scraper can clean some hard sundries, the relative friction of the grinding belt can clean attachments in a wiping mode, and meanwhile, the self-adjusting roller cleaning device for the cold rolling mill is convenient to use. The grinding belt is in bent fit with the cold roller, so that the grinding belt has the characteristic of low pressure intensity per unit area, the effect of effectively cleaning the cold roller can be realized, and the occurrence of a scratching event caused by excessive pressure can be prevented.
Owner:LIAONING PROVINCE SHANYUE MASCH MFG CO LTD

Method of making string of springs for use in pocketed spring assembly

A method of making a string of springs for use in a pocketed spring assembly comprises folding one piece of fabric into first and second opposed plies of fabric. An oversized pocket is formed along each string by transverse seams joining the first and second plies. The oversized pocket is separated into a spring pocket and a mini-pocket by a separating seam. A coil spring is positioned in each spring pocket. Foam chemicals are injected into the mini-pocket. The foam chemicals react in the mini-pocket to create a foam pad.
Owner:L & P PROPERTY MANAGEMENT CO

Abdominal cavity operation nursing frame based on operating room nursing

The invention relates to the technical field of medical instruments, and discloses an abdominal cavity operation nursing frame based on operating room nursing. Comprising two controllable rotating mechanisms, a hollow sleeve and a radial hollow shell, wherein the hollow sleeve plays a role in connecting and supporting an instrument placing disc and a garbage storage barrel; the radial hollow shell is integrally arranged on the outer circumferential surface of the hollow sleeve, and the interior of the radial hollow shell is in a hollow state; the brake ring can move in the axial direction of the radial hollow shell and can abut against the outer circumferential face of a column body of the longitudinal supporting column, and the spiral spring is placed in the radial hollow shell and can generate elastic pressure on the brake ring in the direction towards the longitudinal supporting column. According to the nursing frame for the abdominal cavity operation based on operating room nursing, a certain braking friction force is generated between a braking ring and a longitudinal supporting column by utilizing the elastic strength of a spring, and the braking friction force can enable the rotating resistance of an instrument placing disc and a garbage storage barrel to tend to a moderate range, so that the moving precision and stability of the instrument placing disc are guaranteed.
Owner:TANGSHAN FENGRUN DISTRICT PEOPLES HOSPITAL

Pouring device for mullite brick production

The invention relates to the technical field of mullite brick production, in particular to a mullite brick production pouring device which comprises a conveying frame. The storage barrel is arranged above the conveying frame through a supporting frame; the fixing frame is fixedly mounted on the top surface of the conveying frame; the air cylinder is fixedly installed on the top face of the fixing frame, and the telescopic end of the air cylinder penetrates through the top face of the fixing frame; the pressing plate is fixedly installed at the telescopic end of the air cylinder. Compared with the prior art, by arranging the pressing plate and the cleaning assembly, in the resetting process of the pressing plate, a third transmission gear drives a connecting rod to rotate, a coil spring accumulates force, and when the pressing plate is completely reset, the coil spring releases energy, drives the connecting rod to rotate reversely and drives a reciprocating lead screw to rotate, so that a sliding plate is driven to slide back and forth along a guide rod, and a cleaning scraping plate cleans the bottom face of the pressing plate; the bottom face of the pressing plate can be automatically cleaned after the pressing plate is used every time, residues are prevented from affecting next-time use, and therefore automatic cleaning of the bottom face of the pressing plate and collection of materials are achieved.
Owner:ZHENGZHOU KAIYUAN REFRACTORY MATERIALS CO LTD