309 results about "Rubber elasticity" patented technology

Disclosed is a retainer (10) for processing an optical workpiece. The retainer comprises a holding arrangement (72) and a support assembly (73) for the workpiece. A rubber-elastic membrane (75) mounted on a housing (74) has a retaining section (76), on the outer side (77) of which one surface of the workpiece can be placed to lie flat. The membrane, together with the housing defines a chamber (78) in which a plurality of separately longitudinally movable pins (79) of the support assembly are retained. A pin end (80) of each pin can be brought to bear against an inner side (81) of the retaining portion of the membrane and can be fixed relative to one another by a clamping mechanism (82) against longitudinal movement with respect to the housing. The holding arrangement for the workpiece is provided in or on the retaining section of the membrane.

The invention discloses polyolefin artificial leather, a preparation method thereof and an automobile seat, and belongs to the technical field of polyolefin artificial leather. The polyolefin artificial leather comprises a base cloth layer, a high-elasticity and high-softness layer and a coating layer which are sequentially stacked, the high-elasticity and high-softness layer comprises the following raw material components: a polyolefin elastomer, a low-density polyolefin elastomer, modified high-elasticity resin, an assistant crosslinker, a coupling agent and an anti-aging agent; the low-density polyolefin elastomer comprises a modified polyolefin elastomer, inorganic microspheres and a silane coupling agent; the modified polyolefin elastomer is prepared by grafting 4-vinyl-1, 2-phthalic acid and maleic anhydride on a polyolefin elastomer by adopting a melt grafting method; the modified high-elasticity resin comprises a high-elasticity polyolefin elastomer, a rubber elastomer, a silane coupling agent and a peroxide cross-linking agent; the high-elasticity polyolefin elastomer is obtained by copolymerization of propylene, norbornene and cardanol; p-chlorophenyl trimethoxy silane is at least adopted as the coupling agent.

The invention discloses a preparation method of polyolefin artificial leather and an automobile seat, and belongs to the technical field of polyolefin artificial leather. The preparation method of the polyolefin artificial leather is characterized by comprising the following steps: (1) preparing a low-density polyolefin elastomer: in a double-screw extruder, selecting a double-cone screw to extrude, with the length-diameter ratio of 25-40, mixing and pretreating 10-50 parts of inorganic microbeads and 0.01-1 part of a silane coupling agent B, adding the mixture into 100 parts of modified polyolefin elastomer from a side feeding port, and extruding to obtain the low-density polyolefin elastomer; and finally preparing the low-density polyolefin elastomer. (2) preparing modified high-elastic resin: blending 10-100 parts of a high-elastic polyolefin elastomer, 10-100 parts of a rubber elastomer, 1-5 parts of a silane coupling agent C and 0.1-0.5 part of a peroxide cross-linking agent through a high-speed mixer, heating and plasticizing through a double-screw extruder, and then performing template extrusion and grain-sized dicing to obtain the modified high-elastic resin; (3) preparing a high-elasticity and high-softness layer; and (4) preparing the polyolefin artificial leather: performing cold pressing on the high-elasticity and high-softness layer and the base cloth, curing the surface printing coating layer, pressing textures by an embossing machine, and then cooling and shaping.

To provide a body mount capable of providing a seat part having high stopper strength while preventing a crack of a resin outer cylinder member.SOLUTION: The body mount 1 includes an outer cylinder member 2 made of resin, an inner cylinder member 3 disposed in a hollow portion of the outer cylinder member 2, and a rubber elastic body 4 interposed between the outer cylinder member 2 and the inner cylinder member 3, wherein the outer cylinder member 2 is press-fitted and fixed to an insertion hole 10a of a holder 10, wherein the outer cylinder member 2 has a protrusion portion 5 protruding inward in a radial direction from an inner circumferential surface 2c, the protrusion portion 5 has a hollow structure penetrating in an axial direction, and a plurality of ribs 7 extending in the axial direction are formed on an inner surface of the protrusion portion 5. The rubber elastic body 4 has a stopper part 4a covering the rib 7 and projecting from one end of the outer cylinder member 2.SELECTED DRAWING: Figure 10

The invention provides a granulator clutch coupling capable of being quickly disassembled and assembled. The pelletizer clutch coupling capable of being rapidly disassembled and assembled comprises a connecting gear sleeve, a pneumatic clutch assembly, a coupling left claw disc, an inner inclined surface locking hoop, a rubber elastic body, a coupling right claw disc assembly, a housing and a second clamping spring. The coupler right claw disc assembly comprises a right claw disc, a first clamping spring, a left supporting ring, a right supporting ring, an outer slope locking hoop and a shaft sleeve. According to the invention, spline engagement is matched with an inclined plane locking structure, traditional bolt connection is replaced, and quick assembly and disassembly of parts are realized; the rubber elastic body can absorb vibration and compensate installation errors, and transmission stability and installation flexibility are guaranteed; and the combined design of the housing and the snap spring can effectively protect internal parts and prolong the service life. The coupling is suitable for a transmission system of a granulator, can remarkably shorten the time for online overhaul and part replacement, reduces the shutdown cost of enterprises, and has the advantages of reliable structure, convenience in maintenance and high adaptability.

The utility model discloses an impact-resistant vortex shedding flowmeter with a tough structure, which relates to the technical field of vortex shedding flowmeters and comprises a vortex shedding flowmeter main body, pipeline impact-resistant components and a lower impact-resistant component, the pipeline impact-resistant components are mounted at two ends of the vortex shedding flowmeter main body, rubber impact-resistant parts are arranged in the pipeline impact-resistant components, and the lower impact-resistant component is mounted in the lower impact-resistant component. The vortex shedding flowmeter comprises a vortex shedding flowmeter body, a lower impact-resistant assembly is installed at the bottom of the vortex shedding flowmeter body, an elastic telescopic piece is arranged in the middle of a rubber impact-resistant piece and comprises a plurality of first rubber elastic rings and second rubber elastic rings, and the size of the first rubber elastic rings is larger than that of the second rubber elastic rings. The vortex shedding flowmeter solves the problems that an existing vortex shedding flowmeter carries out anti-impact operation mainly in the mode that a damping assembly is additionally arranged outside, the structure mainly aims at the influence of surrounding vibration, the effect of weakening vibration transmitted by a pipeline connected with the vortex shedding flowmeter is poor, cost is high, and installation is inconvenient.

The present disclosure provides a locking oil stabilizer for TPE material, which comprises a crosslinking agent, a crosslinking network surface modifier and an optional heat-resistant resin. A high-temperature resistant and oil-bleeding TPE material is also provided, which comprises a rubber elastomer, a filling oil, a polyolefin resin, the locking oil stabilizer, an inorganic filler and an optional auxiliary agent. The present disclosure further provides an article prepared from the high-temperature resistant and oil-bleeding TPE material, in particular, a switch key of an electrical product. The article prepared from the high-temperature resistant and oil-bleeding TPE material has the advantages of high-temperature resistance, oil-bleeding resistance and good material processing performance.

This invention provides a high-strength, impact-resistant acrylic adhesive. Using an independent synthesis method, an acrylate-modified rubber elastomer with carboxyl groups is prepared. This elastomer can be chemically bonded to an acrylic polymer. The resulting hydroxyl groups can further react with an isocyanate curing agent. Adhesion is enhanced by using an acrylic phosphate adhesion promoter and a multifunctional acrylate monomer to increase crosslinking density, enabling the foam tape prepared with this acrylic adhesive to maintain high bonding strength even at high temperatures. The foam tape prepared with this high-strength, impact-resistant acrylic adhesive exhibits a 180° peel strength of greater than 3200 gf / in at room temperature and greater than 800 gf / in at 85°C. It also exhibits a drop impact energy of greater than 0.65 J and a DuPont impact energy of greater than 0.90 J.

A switch device (10) comprises: a base material (20) which is obtained by integrally forming a hard part (21) and a soft part (30); a covering material 40 that is provided to the front side of the base material and that covers an opening of the hard part; and a switch operation member (63) that is disposed on the back side of the base material and that corresponds to the opening. The switch operation member and the peripheral edge of the opening are spaced apart from each other in a direction orthogonal to the pushing-in direction of the switch operation member. The soft part is positioned on the front side of the opening of the base material at a portion between the covering material and the switch operation member. The soft part has a rubber elastic expansion margin (31). The expansion margin constitutes a part corresponding to a portion between the switch operation member and the peripheral edge of the opening of the base material.

A tubular vibration-damping device for a motor mount including: a first molded article including: an inner shaft member; an intermediate sleeve receiving the inner shaft member being inserted therein; and an inner rubber elastic body connecting the inner shaft member and the intermediate sleeve elastically in a radial direction; and a second molded article including: an outer tube member; and an outer peripheral rubber elastic body being bonded to an inner surface of the outer tube member, wherein the intermediate sleeve of the first molded article is fitted radially into the outer peripheral rubber elastic body of the second molded article so as to combine the first molded article and the second molded article in a non-adhesive manner.

This invention discloses a method for analyzing the meridional strain of air springs based on piecewise integration of elliptical arc length, belonging to the technical field of vehicle suspension systems or rubber elastic elements design. The method includes the following steps: approximating the arc segment from the top of the air spring generatrix to the outermost bulge point as the first quadrant of an ellipse, determining the major and minor semi-axes of the reference and inflation states; introducing normalized coordinates to establish a linear mapping of the abscissas of the two states, constructing an elliptical arc length infinitesimal element and transforming it to the same interval for integration; dividing the interval into even-numbered equal parts, using the complex Simpson method to obtain the arc length piecewise, calculating the ratio of the inflation arc length to the reference arc length as the elongation ratio, and taking the natural logarithm to obtain the true meridional strain of each segment of the generatrix; this invention can accurately describe the non-uniform deformation of each segment of the generatrix during air spring inflation, providing a basis for strain prediction and fatigue assessment.

The utility model discloses a tire groove bottom stone clamping prevention structure, and relates to the technical field of tires. According to the technical scheme, the tire tread comprises a base arranged at the bottom of a tread groove, a plurality of spiral rubber extension parts are vertically arranged on the base at intervals, and each extension part is in a shape with a wide lower part and a narrow upper part. The base can play a role in isolating the groove bottom of the pattern, the extension part can generate compression buffering after being in contact with stones by utilizing the rubber elasticity of the extension part and the deformation space of the structure, and meanwhile, the sharp corner form with the wide lower part and the narrow upper part is more convenient to generate transverse deviation after being stressed, so that the invasion track of the stones is changed, and the aim of popping up the stones is fulfilled.

The utility model relates to the technical field of precise steel pipes, in particular to a precise steel pipe convenient to split, which comprises a first steel pipe, an external thread bushing and a second steel pipe, the inner side of the right end of the first steel pipe is detachably and spirally connected with the external thread bushing, and the outer side of the right part of the external thread bushing is fixedly connected with the second steel pipe. By arranging the annular groove, the sealing gasket and the rubber elastic protective sleeve, after the first steel pipe and the second steel pipe are spirally connected through the external thread sleeve, the sealing gasket is located in the annular groove, the surface of the left end of the sealing gasket is tightly attached to the inner wall of the annular groove, and primary sealing of the joint of the first steel pipe and the second steel pipe is achieved; and then the rubber elastic protective sleeve is arranged at the joint of the first steel pipe and the second steel pipe in a sleeving manner, so that secondary sealing of the joint of the first steel pipe and the second steel pipe is protected, dust accumulated at the joint of the first steel pipe and the second steel pipe is reduced, the dust is prevented from entering the interior through the joint to cause corrosion, and the service life is prolonged.

Provided is a cylindrical vibration isolation device for vehicle auxiliary machine having a novel structure, in which a main-body rubber elastic body having a low spring property suitable for a vehicle auxiliary machine can be employed. A cylindrical vibration isolation device 10 for vehicle auxiliary machine is provided with an inner shaft member 16 and an outer bracket 14 attached to one of a vehicle auxiliary machine 32 and a vehicle-body-side support member 34. A cylindrical part 44 externally fitted over the inner shaft member 16 is provided to the outer bracket 14. The inner shaft member 16 and the cylindrical part 44 are connected by a main-body rubber elastic body 20. The inner shaft member 16 is provided with a stopper protrusion 24 that protrudes to the outer peripheral side at a position protruding in an axial direction from the main-body rubber elastic body 20. The outer bracket 14 is provided with a first stopper part 46 having an axis-perpendicular contact surface 48 opposing the stopper protrusion 24 in an axis-perpendicular direction, and a second stopper part 50 having an axial-direction contact surface 52 opposing the stopper protrusion 24 in the axial direction, at positions protruding in the axial direction from the main-body rubber elastic body 20.

The invention relates to a fluid coupling arrangement 1 for sealingly connecting a hose 40 to a pressurized fluid line 50, such as a drinking water line. It is provided with at least one open elastic ring 10 for supporting the hose 40, the outer diameter of which corresponds to the inner diameter of the hose 40. It further comprises a coupling part 20, which includes a ring of inwardly chamfered, spring-elastic tongues 21 and a clamping element 22, which interacts with the ring of spring-elastic tongues 21 and is suitable for clamping the hose 40 between the tongues 21 and the open ring 10. It also includes a rubber-elastic, fluid-tight hose element 30, which is suitable and designed to enclose one end of the hose 40 to be connected in a U-shaped and ring-shaped manner, thus sealing it. This fluid coupling arrangement 1 proves to be very robust, seals very well and is advantageous in handling.

This invention provides a novel fluid-sealed vibration damping device that can suppress the influence of hydraulic pressure absorption on a rubber elastic plate and tune the switching characteristics of the opening and closing of the communication port. In this fluid-sealed vibration damping device, the communication port connecting the pressure chamber and the balance chamber is covered by a rubber elastic plate, and the device absorbs minor pressure fluctuations based on the elastic deformation of the rubber elastic plate. A peripheral abutment holding portion, which overlaps with a partition member, is partially provided circumferentially on the rubber elastic plate. An elastic deformation region is provided circumferentially between the peripheral abutment holding portions in the rubber elastic plate. This elastic deformation region separates from the partition member, thereby allowing fluid flow from the balance chamber to the pressure chamber through the communication port. Radial reinforcing ribs are formed protruding from the rubber elastic plate, extending outwards from the inner peripheral abutment holding portion, which overlaps with the partition member, toward the elastic deformation region.

The present disclosure provides a composition for improving the bonding of an elastomer to a metal surface for use in wellbore operations, the composition comprising polymers, including phenolic and acrylic based polymers, one or more fillers, one or more additives, one ore more curative agents, and an epoxide promotor. The method can include single or multilayer addition to a metal surface to promote the bonding of the thermoset rubber elastomer to the metal surface. The resultant bonding can provide a good sealing performance, including at moderate or low temperature to high temperature, and exhibit good chemical compatibility and resistance when exposed to common wellbore environments.

The invention belongs to the technical field of acid-making tail gas treatment, and relates to an efficient purification device for acid-making tail gas. The device comprises a tower body, a first connecting plate, a second connecting plate and a rubber elastic pipe, the two ends of the first connecting plate and the two ends of the second connecting plate are connected with rubber elastic pipes. An elastic film is arranged on the inner wall of the air spraying head, and a triggering piece is arranged on the tower body. The lower end of the rubber elastic tube on the first connecting plate is connected with a magnet ball, and the lower end of the rubber elastic tube on the second connecting plate is connected with an iron ball. The rubber elastic pipe is stretched, so that the elastic film bulges in the direction close to the axis of the jet head, the flow area of the jet head is reduced, the jet distance of the jet head is prolonged, acid-making tail gas and alkaline liquid are mixed more uniformly, the reaction efficiency is improved, and the purification efficiency is further improved. And the distance between the adjacent gas spraying heads is increased, so that the gas spraying heads are distributed more dispersedly, and the acid-making tail gas is sprayed into the alkaline liquid more uniformly.

This utility model discloses a fracture-resistant bolt connection pair structure for long-span steel bridges, including a bolt body, an anti-loosening nut assembly, an anti-corrosion washer assembly, a first steel bridge connection plate, and a second steel bridge connection plate. This utility model relates to the field of steel bridge connection structure technology. This fracture-resistant bolt connection pair structure for long-span steel bridges forms a dual stress dispersion structure through a tapered connector between the bolt head and the bolt segment, and four U-shaped stress relief grooves on the bolt segment. This significantly reduces the stress concentration coefficient at the bolt connection, preventing fatigue crack initiation under long-term alternating loads. Simultaneously, the main nut and auxiliary nut, in conjunction with an annular boss, compress the nitrile rubber elastic bushing, continuously compensating for preload attenuation caused by vibration, achieving a preload retention rate of over 90%. This solves the problem of uneven bolt stress caused by loosening of traditional nuts. It ensures the fracture-resistant performance of the bolt connection pair from both "fatigue resistance" and "loosening prevention" dimensions, meeting the core stress requirements of long-span steel bridges.

The invention discloses an assembly type shear wall bolt connection box with a stress gradient transition function, and belongs to the technical field of assembly type reinforced concrete structure connection. The connecting box comprises a steel box body, an anchoring back plate arranged on the back face of the box body and array type anchoring ribs arranged on the anchoring back plate. The metal outer wall of the connecting box is coated with a buffer layer formed by a high-strength rubber elastomer or epoxy resin mortar, and the thickness of the buffer layer is gradually reduced in the anchoring direction, so that rigidity gradient transition from the steel box to the concrete is achieved. The structure can effectively weaken stress concentration near the end of the anchor bar, delays cracking and crushing of concrete on the edge of the connecting box, remarkably improves ductility and crack resistance of the vertical abutted seam joint of the fabricated shear wall, and better achieves the design goals of strong connection and weak components.

Achieved is a rubber bushing for railroad trucks which has a novel structure and is capable of improving, for example, flame resistance to externally applied fire or the like without greatly degrading the basic properties demanded with respect to vibrational and load inputs. A rubber bushing 10 used for railroad car trucks comprises a shaft-like inner member 12 and an outer member 14, disposed on the outer peripheral side of the inner member 12 at a remove therefrom, which are linked by a rubber elastic body 16. A cover part 48 that covers an exposed end surface 44, from the outside thereof, where the rubber elastic body 16 is exposed to the outside between the axial ends of the inner member 12 and the outer member 14, is provided at an axial end of the rubber elastic body 16 as a separate member from the rubber elastic body 16.

The application discloses a bridge external prestress anchoring device, and relates to the technical field of anchoring devices, which comprises an anchor box, a protective pipe, a prestressed cable, an anchoring plate, a supporting plate and an anchor device, further comprises an in-box filling assembly and a through-hole sealing assembly; the bottom of the anchor box is provided with a ring-shaped sealing ring at the contact position with the bridge; the in-box filling assembly comprises an in-box expanding bag; the in-box expanding bag is a rubber elastic bag with built-in paraffin, and an injection channel pipe is fixed to the in-box expanding bag and arranged in the anchor box during installation of the anchor box; the through-hole sealing assembly is used for sealing the through hole and comprises a ring-shaped soft bag, wherein the ring-shaped soft bag is a ring-shaped rubber soft bag, and an injection pipe is fixed to the ring-shaped soft bag; the ring-shaped soft bag is sleeved on the prestressed cable, and after the in-box expanding bag is filled, an operator pumps paraffin into the ring-shaped soft bag through the injection pipe by using a wax pumping assembly, so that the ring-shaped soft bag is expanded; the technical effect that the sealing effect of the bridge external prestress anchoring device is relatively good and the prestressed cable is not prone to corrosion damage is achieved.

Provided is a novel cylindrical elastic connecting device for an axle beam, the device having a structure that enables a common stopper member to be used for a plurality of types of inner shaft members having different outer diameter dimensions, outer peripheral surface shapes, and the like.　In a cylindrical elastic connecting device 10 for an axle beam, an inner shaft member 12 and outer split bodies 14a, 14b are connected by a main body rubber elastic body 16. A stopper member 28 is attached to the inner shaft member 12, which is attached to a bogie frame 78, the stopper member 28 limiting the amount of relative displacement from the outer split bodies 14a, 14b, attached to a housing portion 90 of an axle beam 88, by means of abutment against the housing portion 90. An intermediate member 54 is disposed between the inner shaft member 12 and the stopper member 28, the intermediate member 54 being overlapped with an outer peripheral surface of the inner shaft member 12 and the stopper member 28. The stopper member 28 is fixed to the inner shaft member 12 by means of an attachment bolt 62 passed through a bolt insertion hole 56 of the intermediate member 54.

The present invention relates to the technical field of road engineering construction, and specifically discloses a high-temperature resistant warm mix rubber asphalt mixture, its preparation method and application. The high-temperature resistant warm mix rubber asphalt mixture includes coarse aggregate, fine aggregate, palmitic acid-lauric acid / vermiculite phase change material, warm mix agent, waste rubber powder and matrix asphalt. In the present invention, the palmitic acid-lauric acid / vermiculite phase change material is added to the asphalt mixture, effectively improving the problem of unstable performance of the asphalt mixture in a high-temperature environment; and the present invention also improves the asphalt aggregate, obtaining a coarse aggregate with a core-shell structure with optical fiber waste particles as the core layer and a rubber elastomer as the shell layer, effectively improving the rutting resistance of the asphalt mixture. The present invention effectively solves the problem of unstable performance of the asphalt mixture in the prior art in a high-temperature environment, and provides a new design idea for asphalt mixtures used in a high-temperature environment.

The utility model relates to the technical field of slope protection, and discloses a geotechnical engineering slope protection net connecting structure which comprises a buffer net, a plurality of connecting buckles are fixedly connected to the outer portion of the buffer net, and supporting ropes are fixedly connected to the interiors of the connecting buckles, namely the front side of the buffer net. A plurality of first connecting blocks are arranged outside one supporting rope, namely the right side of the buffering net in a sleeving mode, first sleeving openings are formed in the first connecting blocks, rolling balls are fixedly connected to the right sides of the first connecting blocks, and rubber elastic rings are arranged in the middles of the outer portions of the rolling balls in a sleeving mode; and a plurality of second connecting blocks sleeve the outer part of the other supporting rope, namely the left side of the buffer net. According to the protection device, impact energy of external force is effectively dispersed and absorbed, instant stress borne by the connection structure is reduced, the stability of the protection net is improved, flexible combination and rapid installation of modules are facilitated, and the adaptability and construction efficiency of the protection device to the complex slope environment are enhanced.

The invention relates to a thermoplastic vulcanized rubber elastomer and application thereof. The thermoplastic vulcanized rubber elastomer is prepared by mixing high-density polyethylene and an ethylene-alpha-olefin copolymer according to a mass ratio of (20-50%): (50-80%), melting, adding a vulcanizing agent, and vulcanizing and mixing, the vulcanizing agent is a peroxide cross-linking agent, and the addition amount of the vulcanizing agent is 1.5-2.5 wt% of the mass of the ethylene-alpha-olefin copolymer. The invention provides a TPV material which takes an HDPE structure as a framework and disperses a POE material, and good material strength, toughness and elastic recovery capability are obtained.

The invention discloses automatic press-fitting equipment for a deep groove ball bearing retainer and an elastic deformation compensation method, relates to the technical field of bearing processing, and is characterized in that aiming at optimization and improvement of a bearing piece, single-section pressing pocket pieces are arrayed in the annular direction of a shaft washer and are in mirror symmetry in the thickness direction, upper and lower pressing parts are staggered and overlapped, and a rubber elastic gap is reserved; the connecting rod is connected with all the single-section pressing pocket pieces through one-way / two-way slotting, the outer ring arc pieces are matched with the inner pressing blocks and the fastening rivet sleeves to strengthen the structural stability, the compensation method comprises the workpiece improvement stage and the press fitting improvement stage, and in the workpiece stage, staggered assembly of the single-section pressing pocket pieces and the outer ring arc pieces is completed. In the press-fitting stage, the upper end and the lower end of a bearing assembly are synchronously pressed through a press-fitting tool bit, a pressing head is matched with an outer ring arc piece to achieve uniform stress, and through the design of a separated retainer and symmetrical synchronous press-fitting, local stress concentration is effectively avoided, elastic deformation and ball damage are reduced, the bearing assembly quality is improved, and the service life of the bearing is prolonged. The method is suitable for large-scale production of various deep groove ball bearings.

Device for odor-tight sealing of a drain pipe (2) of a waterless urinal (1) with an upper inlet housing (4) and a lower outlet housing (9) adjoining it, wherein the inlet housing (4) includes a funnel-shaped collar (5) and a collecting chamber (6) adjoining it downwards, which communicates via a passage cross-section with an outlet chamber (12) of the outlet housing (9) located below it and to which a cover hood (14) is assigned, spaced from its upper edge, which is supported on the upper region of the inlet housing (4) by several support legs (16) projecting from its edge region, and wherein the outlet chamber (12) communicating with the collecting chamber (6) of the inlet housing (4) has a lower boundary in the form of at least one inclined surface (21) which slopes down towards an associated outlet opening (22) provided in a lateral chamber wall,which is associated with a sealing membrane (23) made of rubber-elastic material attached to the outside of the chamber wall, characterized in that spacers (26, 28) are provided for the top of the cover (14), by which the top of the cover (14) is distanced from the collar (5) of the inlet housing (4) in an inverted position of the cover (14).

Provided is a millable silicone rubber compound excellent in cold resistance, which can maintain rubber elasticity in an ultra-low temperature range without using various conventional techniques for improving cold resistance. 【Solution means】A millable silicone rubber compound containing the following components (A) to (E). (A) The following formula (1) M n M Vi (2-n) D γ D Vi δ (1) M:R 1 3SiO (1 / 2) M Vi :R 1 2RSiO (1 / 2) D:R 1 2SiO (2 / 2) D Vi :R 1 RSiO (2 / 2) (In the formula, R is independently an alkenyl group, R 1 is independently an unsubstituted or substituted monovalent hydrocarbon group not containing an aliphatic unsaturated bond. n is a positive number from 0 to 2. γ satisfies (γ / (γ + δ)) ≤ 0.98, δ satisfies (δ / (γ + δ)) ≥ 0.02, and (γ + δ) is a positive number such that (γ + δ) ≥ 6000.) raw rubber represented by (B) A compound having one hydrogen atom bonded to a silicon atom, (C) A specific dispersant, (D) Reinforcing silica having a specific specific surface area, (E) An addition reaction catalyst

The utility model relates to a kind of lock clamp nodes for CFRP cable and strut in string structure, including by first half clamp, second half clamp splicing and being composed of lock clamp outer frame, the lock clamp outer frame inside is provided with by first rubber elastic half bushing and second rubber elastic half bushing and is composed of rubber elastic bushing, the lock clamp outer frame and rubber elastic bushing form mechanical interlock, the rubber elastic bushing middle part is provided with through slot for limiting CFRP cable. The utility model is simple in structure, reasonable in design, corrosion-resistant, easy to install, easy to replace, can also reduce the local shear force that CFRP cable is subjected to at node, prevent slip at strut node.