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35 results about "Evagination" patented technology

A finding that indicates that an anatomic structure is partially or completely turned inside out.

Shoe Heel Cup and Shoe Equipped with One Such Heel Cup

A heel cup can be inserted into a shoe in order to define a posterior upward projection and lateral wings which surround the posterior and lateral faces of the calcaneum and which, through lateral notches, define a preferential deformation zone at, and in the direction of, the subtalar cone of the tibiotarsal joint. Moreover, a sufficiently-rigid connecting zone connects the posterior upward projection and the lateral wings, thus providing the shoe with good stability while enabling inversion and eversion foot movements. In this way, comfort is increased considerably, while the risk of articular injuries is reduced since the subtalar articulation is contained correctly upon reaching the limit thereof.
Owner:RHENTER JEAN LUC

Three-freedom-degree wrist function rehabilitation robot

The invention provides a three-freedom-degree wrist function rehabilitation robot, which comprises a palmar flexion/dorsiflexion moving module, an adduction/abduction moving module, an introversion/evagination moving module, a wrist support module, an elbow support module and a base module, wherein the palmar flexion/dorsiflexion moving module realizes wrist palmar flexion/dorsiflexion freedom degree movement; the adduction/abduction moving module realizes wrist adduction/abduction freedom degree movement; the introversion/evagination moving module realizes wrist introversion/evagination freedom degree movement; the wrist support module fixes the wrist part, and connects the palmar flexion/dorsiflexion moving module, the adduction/abduction moving module and the introversion/evagination moving module together; and the elbow support module fixes the elbow part, regulates the posture of the affected limb, and enables the movement to be stable. The three-freedom-degree wrist function rehabilitation robot has the advantages that the assistance is provided for a patient to do wrist palmar flexion/dorsiflexion, adduction/abduction and introversion/evagination three-moving-freedom-degree exercise training; the external exoskeleton structure fits the wrist moving track; the structure is compact; the dimension is small; the weight is light; the use by a family is convenient; and the rehabilitation training efficiency is improved.
Owner:SHANGHAI JIAO TONG UNIV

Coaxial 190-degree evagination rotating mechanism applied to flexible screen

InactiveCN108999882AMeet the needs of high-precision controlNo deformationShaftsPivotal connectionsEvaginationRack and pinion
The invention discloses a coaxial 190-degree evagination rotating mechanism applied to a flexible screen. The coaxial 190-degree evagination rotating mechanism comprises a structural body, and the structural body is composed of evagination rotary shafts arranged on the two sides and a plurality of sets of rotary shaft connecting plates arranged between the evagination rotary shafts. Each evagination rotary shaft comprises a left side sliding rail spring mechanism, a right side sliding rail spring mechanism and a rotary mechanism, wherein the left side sliding rail spring mechanism and the right side sliding rail spring mechanism are arranged at the two ends, and the rotary mechanism is rotationally connected between the left side sliding rail spring mechanism and the right side sliding rail spring mechanism. Damping mechanisms are arranged on the two sides of the long sides of each rotary mechanism correspondingly. A side edge packaging body is arranged on one side of one damping mechanism. The overall structural design of coaxial driving rotation is adopted, a gear and a gear rack coaxially rotate to achieve pure mechanical bending, and the bending need for evagination of 0 to 190degrees is met. A plurality of sets of spring gaskets, spring sheets, springs and slab gaskets are flexibly applied, and the needs for damping and torsion are met. By designing a bilateral damping mechanism and spring sliding rail compensation mechanisms on the two sides, limiting is achieved through a limiting structure of a fixed block, it is guaranteed that deformation is avoided in the bending process, and the high-precision control need of flexible screen bending is met.
Owner:DONGGUAN JINFENG ELECTRONICS

Cleaning device coupling instrument and cleaning device

Provided are a cleaning device coupling instrument with which it is possible to easily carry out an attachment and a detachment between a main body part and a cleaning part of a cleaning device and a cleaning device comprising this cleaning device coupling instrument. A cleaning device coupling instrument (1) is a coupling instrument which facilitates coupling a main body part of a cleaning device and a cleaning part which is attached to the main body part, comprising a first coupling member (10) whereon an evagination part (100) is disposed which has an incline site, a lateral circumference part of which narrows toward the leading end; and a second coupling member (20) whereon a fitting member (200) is disposed with which the evagination part (100) is capable of loosely fitting.
Owner:有限会社阿科塞思 +1

Absorbent article

An absorbent article includes a fluid permeable top sheet, a fluid impermeable back sheet, and an absorbent body disposed therebetween, and in addition is provided with an evagination means extending in a longitudinal direction between the top sheet and the back sheet. The top sheet has a first attachment region attached to the evagination means, second attachment regions attached to the vicinity of both side edges of the absorbent article, and an unattached region positioned between the regions. In the unattached region, many inflected creases, in particular, diagonally directed creases directed from the first attachment region towards both side edges are generated.
Owner:UNI CHARM CORP

Buckling type seal structure of cross axle cardan joint

ActiveCN102200172ASolve the loss of tightnessImprove sealingYielding couplingEngineeringEvagination
The invention discloses a buckling type seal structure of a cross axle cardan joint, which comprises an outer loop, a seal ring and a dust cover, wherein the seal ring comprises a seal ring framework and a seal lip, one end of the seal ring framework is bent inwards and connected with the seal lip into a whole, the other end of the seal ring framework is turned outwards to form a hook ring, an annular groove is arranged between the seal lip and the seal ring framework, a pre-tightening groove is arranged on the side wall of the annular groove at the side of the seal lip, a pre-tightening spring of an annular structure is arranged in the pre-tightening groove, the dust cover is an annular body the cross section of which is of a U-shaped structure, the inner annular body of the dust cover is attached with the cross axle cardan joint, an internally protruding snap ring is arranged on the inner wall of the outer ring body and is buckled with the hook ring. The problem that the insufficient wear service life of the seal material of the cross axle cardan joint results in the decline of the seal property of the cardan joint is solved. The invention has the advantages of unique design, compact structure, convenience for installation and low production cost. The seal property of the cardan joint can be effectively improved, and the use period of the cardan joint can be prolonged.
Owner:WANXIANGQIANCHAO CO LTD +1

Scupper joint for ship

A scupper joint for a ship includes a body and a nut. The body has a tubular structure as a piece cut from a seamless tube. The tubular structure has a first section and a second section. The first section has a flange at one end thereof as an evagination and a threaded segment at an outer periphery thereof. The second section has at least one annular protrusion at an outer periphery thereof. The nut has an annular structure. The tubular structure has an end evaginated to form a flange and has an inner wall threaded to form a threaded segment. The threaded segment of the nut and the threaded segment of the first section are configured to couple with each other.
Owner:MARINE TOWN

Method for preparing a hydraulically-driven flexible gecko-imitating toe

The invention discloses a method for preparing a hydraulically-driven flexible gecko-imitating toe. The specific structure of the hydraulically-driven flexible gecko-imitating toe comprises upper twocavities and liquid guiding pipes, wherein the upper two cavities are prepared from polydimethylsiloxane; the outer surface of an active layer of each cavity is provided with uniform trapezoidal grooves and spiral winding wires; the two cavities share a passive layer, and the passive layer is embedded with a single-layer polyester single screen; and flap strip-shaped convex planes are arranged onthe surface of the bottom side of the toe, and a layer of bristle-imitating array adhesion materials are attached to the convex planes. The multifunctional functions of adduction, evagination and adhesion under hydraulically driven of the gecko-imitating toe can be realized by imitating the behavior mode of adduction and evagination of a gecko toe and the structural characteristics of a bristle array, and key technical support is provided for the development and application of gecko-imitating robots.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Scupper joint for ship

InactiveUS20100294186A1Saving cost in manufactureSaving in developmentPipe supportsAuxillariesEngineeringEvagination
A scupper joint for a ship includes a body and a nut. The body has a tubular structure as a piece cut from a seamless tube. The tubular structure is processed to have a first section and a second section. The first section has a flange at one end thereof as an evagination and a threaded segment at an outer periphery thereof. The second section has at lease one annular protrusion at an outer periphery thereof. The nut has an annular structure as a piece cut from a stainless steel board. The tubular structure is processed to have an end evaginated to form a flange and is processed to have an inner wall threaded to form a threaded segment. The threaded segment of the nut and the threaded segment of the first section are configured to couple with each other.
Owner:MARINE TOWN

Cardiac valve prosthesis and bracket thereof

PendingCN109966023AMinimize functional impactSmall sizeHeart valvesTransitional RegionProsthesis
The invention relates to a cardiac valve prosthesis and a bracket thereof. The bracket comprises an inflow tract, an outflow tract and a transitional region located between the inflow tract and the outflow tract in the axis direction, wherein the outflow tract comprises a ring structure and at least two evagination structures formed through extending in the axis direction; the at least two evagination structures are respectively connected with one end away from the transitional region, of the ring structure; and a vacant region is restricted between every two adjacent evagination structures. The cardiac valve prosthesis and the bracket thereof disclosed by the invention can be suitable for various valve replacement surgeries at the same time, damage risk of the surgeries on patients and the surgery cost can be reduced, and the influence of the bracket on the cardiac function can be minimized.
Owner:SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO LTD

Outward turning device for bamboo tube, and outward turning and splitting method of bamboo tube

The invention discloses an outward turning device for a bamboo tube. The outward turning device comprises an expansion air bag and a metal tube, wherein a rubber air bag is circularly arranged on the inner wall of the metal tube, and the rubber air bag is fixedly connected to the inner wall of the metal tube; an outward turning and splitting method using the outward turning device for the bamboo tube specifically comprises the following steps of selecting materials, cutting, softening, and outwards turning and splitting. According to the method and the device, splitting of the softened bamboo tube is forced by fully utilizing mechanical external force and stress synergistic effect generated by large deformation due to outward turning of the bamboo tube, and the produced bamboo fibers are neat, integrated and controllable in length.
Owner:JIYANG COLLEGE OF ZHEJIANG A & F UNIV

Absorbent Article

An absorbent article includes a fluid permeable top sheet, a fluid impermeable back sheet, and an absorbent body disposed therebetween, and in addition is provided with an evagination means extending in a longitudinal direction between the top sheet and the back sheet. The top sheet has a first attachment region attached to the evagination means, second attachment regions attached to the vicinity of both side edges of the absorbent article, and an unattached region positioned between the regions. In the unattached region, many inflected creases, in particular, diagonally directed creases directed from the first attachment region towards both side edges are generated.
Owner:UNI CHARM CORP

Three-dimensional electromagnetic probe and gyromagnetic detection method

The invention relates to a three-dimensional electromagnetic probe and gromagnetic detection method for metal material nondestructive detection and evaluation. The electromagnetic probe comprises a probe body 1, a probe hole 2, a connection port 3, a front detection coil 4, a rear detection coil 5, an upper detection coil 6, a lower detection coil 7, a left detection coil 8 and a right detection coil 9. The probe is characterized in that each detection coil comprises a pair of magnet exciting coils and a pair of detection coils, exciting current of each coil is reasonably adjusted, thus providing a constant spatial rotating magnetic field for gyromagnetic detection. The result obtained by gromagnetic can generate an analog similar to the detected work piece by three-dimensional data visualization, abnormal material quality can be shown by obvious evagination or sinking on the analog, material quality uniformity and abnormal tissue in the interior of metal material can be obviously reflected, thus being helpful for detection personnel to rapidly evaluate the quality of the detected work piece. The invention not only can be used for detection and evaluation of ingredient, mechanic performance and tissue uniformity but also can detect and early warn of tissue abnormality such as crack by non-uniformity of material quality distribution.
Owner:帅立国

Anti-shock, anti-seepage, sealed folding type self plugging rivet

This invention discloses a shock-proof, antiseep, closed type collapsible self plugging rivet. It includes rivet body and rivet core. The body is tubular structure, and there is radial evagination plat at its one end circle direction. There is radial deflection arch at one end of the core, the other end extend out from the no cover end and dent into rivet body and extend out the cover. Its feature is that there is annular tinajita along circumferencial direction on the body inside, and rubber seal ring is fixed in annular tinajita. There are several longitudinal continuous mangers on the body, they are same length and two ends same, they extend from cover inside to no cover end, and space is leaved to non cove end. The seal capability of this rivet is good, and it has shock-proof, antiseep function, so it can be not only used to rivet hard or thick work piece, but also to rivet soft or thin work piece, its application range is not restrict. It can be used to the fix of two or more than two work pieces.
Owner:李惠元

Method for constructing draw wells with water and auxiliary device thereof

The invention relates to the field of building construction and particularly relates to a method for constructing draw wells with water and an auxiliary device thereof. The auxiliary device is characterized by comprising a basin-shaped base and a plurality of filter water controllers arranged at the periphery of the bottom of the basin-shaped base; an evagination folded side is arranged at the top of the basin-shaped base; the filter water controller is tubular; a screw thread structure is arranged at the head of the filter water controller; the head penetrates into the basin-shaped base; a plurality of water through holes are formed in the surfaces of rest parts of the filter water controller; the auxiliary device also comprises an end cap corresponding to the screw thread structure at the head of the filter water controller; the end cap is in thread sealing connection with the head of the filter water controller. The auxiliary device is simple to manufacture and easy to use; through the auxiliary device, the influence of underground water on the engineering construction of the draw wells can be solved; the construction progress can be accelerated; the influence of the underground water on the engineering can be solved; the construction quality can be ensured; the leakage-free engineering can be created.
Owner:SHANGHAI ERSHIYE CONSTR CO LTD

Antenna connector

This invention relates to an antenna connector, which comprises a cylindrical housing with an inward shoulder in its inner wall, a bonding component close located in the housing with an evagination ring covering the shoulder of the housing, an earth back cover with its conical bevel located in the top of the bonding component, outward projecting from the housing, and owning an evagination ring covering the evagination ring of the bonding component, a lower pad located in the top of the evagination ring of earth back cover, a upper setting block located above the pad and fixed in the top of the housing and riveted, a flexible wound spring located between the upper pad and upper setting block, an earth connecting tube close located in the earth back cover, an insulating cover equipped in the earth connecting tube and a central terminal in the insulating cover. The invention has firm structure and accurate connection.
Owner:ALFATEK ELECTRONICS

Hidden A-pillar front windshield exterior trimming rubber strip

The invention relates to a hidden A-pillar front windshield exterior trimming rubber strip which comprises an upper side rubber strip, a left side edge rubber strip and a right side edge rubber strip. Each side edge rubber strip comprises rubber strip ends and a rubber strip body, a groove with a U-shaped cross section is formed in the rubber strip body, a barb lip is arranged on the internal side of the groove, a mounting plate welded on an A-pillar is inserted into the groove, an outward turned barb structure is arranged on the mounting plate, the mounting plate is in close fit with the barb lip by the aid of the barb structure, a rubber strip water guide edge is arranged outside a sealed end of the groove and on one side close to a front windshield, and a concealed long and thin lip is arranged outside the rubber strip body and on one side far away from the front windshield. The hidden A-pillar front windshield exterior trimming rubber strip has the advantages that a minicar can realize a hidden A-pillar structure which is a breakthrough of a minicar industry, the rubber strip has a water guide function at the position of the A-pillar, water is prevented from flowing down to a front door glass area, the sight line of an exterior rearview mirror is prevented from being blocked, a gap structure in a hidden A-pillar metal plate is omitted as compared with a non-hidden A-pillar structure, and difficulty in solving the problem of uneven gap is reduced.
Owner:SAIC-GM-WULING AUTOMOBILE CO LTD

Energy conservation high-pressure-resistant nonmetal expansion joint

The invention discloses an energy conservation high-pressure-resistant nonmetal expansion joint which comprises a right flange, a left flange, skin and a guide cylinder. The two ends of the skin are turned outwards and are fixedly connected with the left end face of the right flange and the right end face of the left flange correspondingly, and a compensation structure is formed; the guide cylinder is arranged in a skin inner hole and comprises a straight cylinder and an outwards-turning flange at the left end, the left end outwards-turning flange of the guide cylinder is clamped between the right end face of the left flange and the left end turning edge of the skin, the straight cylinder penetrates the skin in the axial direction, the right end extends out of the right end face of the right flange, and the extending length is not smaller than the compensation amount; and the further improvement is that a plurality of ribbed plates are fixedly connected between the outer wall of the straight cylinder of the guide cylinder and the right end face of the outwards-turning flange and are evenly arranged on the outer side of the straight cylinder of the guide cylinder, a heat-resisting layer is arranged on the outer wall of the straight cylinder of the guide cylinder, and a steel wire net is arranged on the inner wall of the skin. The energy conservation high-pressure-resistant nonmetal expansion joint is high-temperature resistant and high-pressure resistant, impurities and dust are prevented from falling into a cavity between the guide cylinder and the skin in the using process, the heat loss is small, and the energy-saving effect is obvious.
Owner:江苏苏创管业科技有限公司

Plane mirror device for reducing head drop work

InactiveCN103190786ANormal nerve conductionReduce cervical spondylosisPicture framesDomestic mirrorsDiseaseCervical spondylosis
The invention discloses a plane mirror device for reducing head drop work, relates to the field of daily supplies, and particularly relates to a plane mirror aggregate unit adopted for reducing the time of the head drop work. The technical scheme is to avoid cervical highlight and reduce head bending. The technical scheme is as follows: the plane mirror device for reducing head drop work is characterized in that two plane mirrors are connected through a hinge; the two plane mirrors can be fixed at any angle by friction force or elastic force; one plane mirror is fixed on a support plate; a rubber band ring is fixed at two ends of the support plate; the rubber band ring is sleeved on the top; and the support plate is arranged at the surface of a forehead. The plane mirror device has the beneficial effects that literal data of the desktop are observed through the plane mirror; and the head neck part is kept upright basically. Thus, cervical spondylosis caused by cervical vertebra evagination caused by long-term bending over the table to do the head drop work is reduced; normal nerve conduction of the cervical vertebra is ensured; mobility problem and torment of slight illness caused by diseases are reduced; and the device is low in cost and easy to implement.
Owner:SICHUAN UNIV

Adjustable Angle's Bicycle Seismic Isolation Device

The utility model provides an adjustable angle's bicycle seismic isolation device, contain a buffer unit and a pivot joint, this buffer unit has a first end and a second end, this second end has a terminal surface, one by this terminal surface towards the concave depressed part of establishing of this first end, one sets up in this depressed part and along pin joint portion that a central line extends and one around this central line and set up in the indent cambered surface of this depressed part inner end, this pivot joint has one and is the circular -arc pivot face of evagination, this pivot face can rotate and laminate in this indent cambered surface. When a connecting rod parts produces the pivot for a lower fork part, utilize this pivot face can rotate and laminate in the effect of this indent cambered surface, enable the shaking force and stretch the direction corresponding to an axis edge of this buffer unit, and can produce the buffering effect of preferred.
Owner:PACIFIC CYCLES

Antenna connector

This invention relates to an antenna connector, which comprises a cylindrical housing with an inward shoulder in its inner wall, a bonding component close located in the housing with an evagination ring covering the shoulder of the housing, an earth back cover with its conical bevel located in the top of the bonding component, outward projecting from the housing, and owning an evagination ring covering the evagination ring of the bonding component, a lower pad located in the top of the evagination ring of earth back cover, a upper setting block located above the pad and fixed in the top of the housing and riveted, a flexible wound spring located between the upper pad and upper setting block, an earth connecting tube close located in the earth back cover, an insulating cover equipped in the earth connecting tube and a central terminal in the insulating cover. The invention has firm structure and accurate connection.
Owner:ALFATEK ELECTRONICS

Method for lasting of sandal

The invention discloses a method for lasting of a sandal. The method includes the following steps that a nailing fixing mode is adopted for covering the edge of an innersole, a nail is pegged in the center axis, from the front end 30-40 mm, of a shoe last bottom, a nail is pegged in the flank position, and a nail is pegged in the heel center portion; the covered innersole is fixed through gluing, and the shoe last bottom and the innersole are fixedly glued through adhesive tape or double-faced adhesive tape; the width inside the sandal is 10-12 mm, a sanded marking template is adopted, and according to the sanding quality, it is required that fluffs are even and dense, number two abrasive paper is adopted for sheepskin lining and number three abrasive paper is adopted for pigskin lining; the periphery of the upper inner side and the upper gluing position of the innersole are evenly brushed with emulsion paint, so that upper feet are directly glued to the innersole conveniently in the lasting process; the outer sides of upper strips are behind the back of the inner sides of the upper strips, and the upper strips are formed according to the foot type rule; the inside of a head hole is forward, the outside of the head hole is backward, according to the fact that the evagination of the thumb is located in front of evagination of the little toe, the efficiency and quality of lasting of the sandal can be effectively improved through reasonable working procedure design, and the service life of the sandal is prolonged.
Owner:CHENGDU KAMEIDO SHOES

Buckling type seal structure of cross axle cardan joint

ActiveCN102200172BSolve the loss of tightnessImprove sealingYielding couplingEvagination
The invention discloses a buckling type seal structure of a cross axle cardan joint, which comprises an outer loop, a seal ring and a dust cover, wherein the seal ring comprises a seal ring framework and a seal lip, one end of the seal ring framework is bent inwards and connected with the seal lip into a whole, the other end of the seal ring framework is turned outwards to form a hook ring, an annular groove is arranged between the seal lip and the seal ring framework, a pre-tightening groove is arranged on the side wall of the annular groove at the side of the seal lip, a pre-tightening spring of an annular structure is arranged in the pre-tightening groove, the dust cover is an annular body the cross section of which is of a U-shaped structure, the inner annular body of the dust cover is attached with the cross axle cardan joint, an internally protruding snap ring is arranged on the inner wall of the outer ring body and is buckled with the hook ring. The problem that the insufficient wear service life of the seal material of the cross axle cardan joint results in the decline of the seal property of the cardan joint is solved. The invention has the advantages of unique design, compact structure, convenience for installation and low production cost. The seal property of the cardan joint can be effectively improved, and the use period of the cardan joint can be prolonged.
Owner:WANXIANGQIANCHAO CO LTD +1

Lip eversion fixing device

The invention relates to the technical field of medical apparatuses, and in particular to a lip eversion fixing device which can be used for drawing lips in an oral surgery. The invention mainly aimsat solving the technical problem of an existing fixator that the fixator, when conducting an eversion operation on the lower lip of a patient, is difficult to fix to the head of the patient. Accordingto the technical scheme, the lip eversion fixing device mainly comprises a base, a fixing mechanism and a connecting rod. A groove, from which the nose of the patient can run through, is kept in thebase; the fixing mechanism is arranged on the base and is used for fixing the base to the face of the patient; a rotary retractor is arranged on the connecting rod; the retractor, when rotating to a first position, corresponds to the upper lip of the patient, so that the upper lip of the patient is retracted; and the retractor, when rotating to a second position, corresponds to the lower lip of the patient, so that the lower lip of the patient is retractor, wherein the connecting rod is arranged on the base and the connecting rod, relative to the base, can do reciprocating motions, so that theeversion of the upper lip or lower lip of the patient can be promoted via the retractor.
Owner:谷昌德

Hyperthermia instrument for knee joint

The invention discloses a hyperthermia instrument for a knee joint. The hyperthermia instrument for the knee joint is characterized by comprising a sealed bag, an energy storage liquid, an electric heating component and a mesh bag, wherein the two ends of the sealed bag are provided with nylon hooks and loop fasteners or bandages; the energy storage liquid is filled into the sealed bag; the electric heating component is arranged in the energy storage liquid; the mesh bag is arranged on a hot application surface on the inner side of the sealed bag. Compared with the prior art, the hyperthermia instrument for the knee joint has the advantages that the hyperthermia instrument for the knee joint can automatically cling to an affected part of the knee joint according to the evagination of the knee joint, and is safe to use, a patient can also walk during a treatment period, and the drug treatment can be conveniently provided while the hot application is carried out.
Owner:谭峰

U-shaped sealing device for tunnel anti-crystallization

The invention discloses a U-shaped sealing device for tunnel anti-crystallization. The device comprises a connector, a screw nut, a elbow and a U-shaped sealing device body, wherein the front end of the connector is connected at the water outlet of a tunnel drainage pipeline; the outer diameter of the back end of the connector is equal to the inner diameter of the screw nut; external threads are arranged at the back end of the connector; internal threads are arranged on the screw nut; the rear end of the connector is screwed into the screw nut to form a threaded connection; the outer diameterof the front end of the elbow is slightly less than that of the screw nut; and a convex strip projecting outside is arranged at the front end of the elbow; a clamping strip projecting inside is arranged at the rear end of the screw nut; the convex strip and the clamping strip consist of two symmetrical 1 / 4 circular structure, the front end of the elbow extends into the screw nut and rotates 90 degree to form clamping buckle connection; the U-shaped sealing device body and the elbow are formed in one, and the water inlet and outlet of the U-shaped sealing device body are flush. The U-shaped sealing device has the advantages that the U-shaped sealing device for anti-crystallization of the tunnel is mounted on the tunnel drainage pipeline, which can effectively cut off the contact between thedrainage pipeline and the outside air and solve the problem of crystallization of the tunnel drainage pipeline.
Owner:铁科创恒新材料科技有限公司 +1
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