350 results about "Expansion joint" patented technology

The utility model discloses railway bridge expansion joint cleaning device, including trolley and motor, the middle part of trolley is installed with the mounting seat that can go up and down, and the motor is installed in the top of the supporting plate, and the loading box, supporting plate are located above the trolley ground plate, and the bottom plate is located below the trolley ground plate, and spring a is sleeved on every stand, and the upper end of spring a supports the bottom of supporting plate, and the upside of bottom plate is installed with the horizontal pivot through the bearing seat, and one end of pivot projects to the side of trolley and is installed with the cleaning disc subassembly, and the other end of pivot is connected transmission through the pulley subassembly between the output shaft of motor, and the cleaning disc subassembly includes spline shaft and two discs, and two discs are installed with spline shaft and can adjust the interval, and two discs are connected with several even distribution steel wire ropes between the edge. Utilize the rotation of cleaning disc subassembly to clean the sundries in expansion joint, and the width of cleaning disc subassembly can adjust and adapt to the expansion joint of different width, and the compatibility is good.

This utility model provides an expansion joint cleaning device, comprising: a suction frame connected to a garbage collection bin for sucking garbage into the garbage collection bin; a suction assembly connected to a high-pressure centrifuge, wherein there is at least one suction assembly, which is fixed downwardly at least on one side of the suction frame for sucking up smaller pieces of garbage from the road and bridge expansion joint; a spray washing assembly hinged to the upper part of the suction assembly for rinsing up smaller pieces of garbage from the road and bridge expansion joint; and a sealing assembly rotatably installed at the lower part of the suction assembly for sealing the suction assembly. This utility model cleans the internal gaps of the expansion joint through high-pressure washing by the spray washing assembly, regardless of the depth of the expansion joint; and sucks up mud, garbage, and water used for cleaning from the expansion joint through the suction force of the suction assembly, achieving not only thorough cleaning of the internal gaps of the expansion joint but also collecting mud, garbage, and cleaning water all at once, ensuring a clean and aesthetically pleasing work site.

The present invention relates to an expansion joint for a cable tray for construction, comprising: a variable rail (20) whose spacing between each other changes due to thermal expansion and contraction caused by temperature changes; a pair of pivot pins (30) each installed on the outer side of the variable rail (20); a rotation center end (41) supported by the pivot pin (30), and a pivot end (42) that extends toward each other by the same length and overlaps in a V-shape to pivotally connect, and two pairs of V-links (40) positioned parallel to each other with a constant vertical spacing; and a connecting rod (43) that pivotally connects both ends to the pivot end (42) so as to cross vertically between the pivot ends (42) to form a symmetrical parallelogram link together with the V-links (40).

This invention discloses a method for overlapping construction of waterproofing systems in existing subway lines. It relates to the field of underground engineering waterproofing construction technology and includes: Step 1, current status investigation and deformation assessment; Step 2, overlapping structure system design; Step 3, key material selection and process matching; Step 4, refined overlapping construction process; and Step 5, full inspection after each process. This invention's method for overlapping construction of waterproofing systems in existing subway lines, through Step 1, involves structural deformation monitoring and analysis and diagnosis of the existing waterproofing layer; Step 2, involves deformation adaptation structure design and differential deformation compensation design; Step 3, involves material selection and process innovation; Step 4, involves base treatment, interface treatment, expansion joint and node construction, and reinforcement layer construction; and Step 5, involves process inspection. This method, tailored to the characteristics of existing subway lines, enables the effective combination of different waterproofing materials, adapts to continuous deformation, and ensures long-term reliability.

The objective is to minimize the height difference between the first and second floor sections and the independent boards, even when using thick independent boards to connect the first and second floor sections, and to limit the range of movement of the independent boards relative to the first or second floor section. [Solution] The floor expansion joint comprises a first floor section provided in one building, a second floor section provided in the other building, separated from the first floor section and arranged along the same floor surface as the first floor section, an independent plate positioned between the first and second floor sections and arranged along the floor surface, a support section attached to the first or second floor section and supporting the independent plate from below so that the independent plate can move along the floor surface, and a limiting section provided on the lower surface of the independent plate and limiting the range of movement of the independent plate relative to the support section.

The utility model relates to bridge expansion joint device technical field, and concretely speaking, the utility model relates to a high -speed railway beam water stop expansion joint device, including the elastomer (1) in expansion joint, be equipped with connecting rod (2) on the elastomer (1), the utility model water stop expansion joint device installation is convenient, is not limited by climate and construction condition, and the elastomer can be prefabricated according to bridge expansion joint width and expansion amount in advance, is not limited by bridge expansion amount, and the scope of application is wider, after installation, the device and the extrusion force between the beam body are generated, the connecting rod is arranged in the device interior and can enhance the extrusion force, and the interface is not easy to crack, the connecting rod and the elastomer structure of arch structure structure connection are firm, simplify the installation and removal operation of the device, and simultaneously reduce production cost.

This utility model relates to the technical field of engineering construction, and in particular to a drainage channel structure for expansion joints. It includes: an inter-column drainage channel, disposed between adjacent structural columns, with an inter-column connecting plate; clearance grooves are provided on the sides of adjacent structural columns; the inter-column connecting plate is fixedly connected to a structural beam and embedded in the clearance groove; a first inter-beam drainage channel and a second inter-beam drainage channel are respectively disposed at both ends of the inter-column drainage channel, both disposed between adjacent structural beams; each inter-beam drainage channel has a beam bottom connecting plate, fixedly connected to the bottom of the structural beam; the first inter-beam drainage channel, the inter-column drainage channel, and the second inter-beam drainage channel overlap sequentially to form a slope and are interconnected; an expansion joint waterproofing strip is provided between the beam bottom connecting plate and the bottom of the structural beam. This application has the effect of forming a second line of defense against water seepage in expansion joints, preventing indoor water seepage.

The utility model discloses a kind of expansion joint and asphalt pavement seamless transition structure, it includes recess, rectangular groove and screw groove: the inner cavity of the recess and screw groove is respectively provided with rectangular metal clamping block and screw, the surface of the screw is equipped with strip hole plate, the strip hole plate is welded between rectangular metal clamping block, the surface screw thread connection of the screw has nut block, the inner wall between the screw and screw groove is collectively filled with plant glue layer.The utility model fixes screw in the inner cavity of screw groove by plant glue layer, subsequently rectangular metal clamping block is placed in the inner cavity of recess, then it is fixed between screw and rectangular metal clamping block by the cooperation of strip hole plate and nut block, i.

The utility model relates to plywood technical field, concretely relates to a high -strength plywood with two -way deformation resistance structure, including hetero -directional reinforcing core layer, self -compensating expansion joint, wood veneer, high temperature resistant resin adhesive and surface reinforcing layer, the hetero -directional reinforcing core layer adopts the wood veneer mixed layer of two -way corrugated groove slant stripe directional paving, and the grid interlocking structure is formed through laser cutting process. The utility model through hetero -directional reinforcing core layer and multilayer wood veneer form firm combination through high temperature resistant resin adhesive, and the gradient enhancement design and the edge sealing structure of surface reinforcing layer provide comprehensive protection, and the flexible transition characteristic of transition buffer zone ensures the stress effective transmission and dispersion between each structure layer, not only significantly improved the two -way mechanical property balance and size stability of panel, also endows it with excellent temperature adaptability, edge sealing and overall structural integrity, makes it can adapt to the use requirement under various complex environment.

This utility model relates to the field of pipeline connection technology and discloses a double-flange limiting expansion joint, including a first connecting assembly, a second connecting assembly, and an expansion structure. The first and second connecting assemblies are connected by the expansion structure. The first connecting assembly includes a first pipe joint, and the second connecting assembly includes a second pipe joint. The expansion structure includes a slide groove, a guide rail, a threaded seat, a fixing block, a third sealing ring, and a fourth sealing ring. The second pipe joint is slidably connected to the first pipe joint through the slide groove, the guide rail, and the threaded seat has an internal threaded screw installed. The end of the screw is rotatably connected to the fixing block. The third sealing ring is fitted to the end of the second pipe joint that extends into the first pipe joint, and the fourth sealing ring is fitted to the end of the first pipe joint away from the first flange. This utility model utilizes the threaded engagement between the screw and the threaded seat to push the fixing block to move, thereby driving the second pipe joint to move, adapting to the length changes of the pipeline caused by thermal expansion and contraction, foundation settlement, etc.

This utility model relates to the field of building construction technology and discloses an expansion joint structure for an indoor glass curtain wall and the ground. It includes an indoor wall for installing the glass curtain wall and an indoor ground spaced apart from the indoor wall to form an expansion joint. An expansion joint device is installed on the expansion joint, including a base plate. The base plate is fixedly connected to the indoor wall and the indoor ground on both sides, respectively. A fireproof layer is laid on top of the base plate. The fireproof layer is fireproof rock wool with a thickness of 100mm and a density of 100kg / m³, improving the fire resistance and heat insulation effect of the expansion joint device. A waterproof layer is installed above the fireproof layer. One end of the waterproof layer is sealed and fixedly connected to the indoor wall, and the other end is sealed and fixedly connected to the indoor ground. Cover plates are spaced apart above the waterproof layer. One end of each cover plate is fixedly connected to the indoor wall, and the other end is fixedly connected to the indoor ground. The cover plates are used to cover the expansion joint and can adapt to the expansion and contraction of the expansion joint.

This utility model relates to the field of expansion joint technology, specifically disclosing a high-temperature exhaust expansion joint structure, including a steel structure frame detachably connected to the top of the exhaust system pipeline. The top of the steel structure frame is formed with an air inlet, and support frames are fixedly connected to the top of the steel structure frame on both sides of the air inlet. A skin is detachably connected between the two support frames. Several anchor rods are vertically arranged inside the steel structure frame, and several fastening joints for positioning the anchor rods are provided at the bottom of the steel structure frame. The steel structure frame is filled with a heat insulation and sound absorption layer, which solves the problem that traditional exhaust expansion joints use external insulation wrapping, which is inconvenient for on-site installation.

The utility model discloses a bridge expansion joint gap detection tool relates to bridge maintenance technical field, the utility model discloses a mounting block, the bottom of one side of mounting block is fixed with the extension plate, the extension plate is away from the one side structure of mounting block and has the triangle gap, the side of triangle gap is marked with the scale line, the conical block is inactivity and is embedded in the triangle gap, the correction mechanism is used for correcting the perpendicularity of conical fast, the correction mechanism includes the slide that is fixed in the top of conical block, the side of mounting block is close to the upper interval fixed establishment of extension plate and has the guide rod. The utility model uses the extension plate with equilateral triangle gap to cooperate conical block and measures, the vertex of triangle gap is as the scale zero starting point, and the width is directly read through the scale of the contact point of conical block and gap, and compared with traditional plug gauge or caliper, this kind of measurement mode can be more accurate to adapt to the irregular gap shape.

1. Name of the product in this design: Comb plate. 2. Application of this design: comb plate for bridge expansion joints. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This utility model relates to the field of double rubber strip expansion joint technology, specifically a boltless comb-tooth plate noise-reducing and reinforced expansion joint, including two symmetrical connecting seats. Several anchor plates are provided on the outer wall of the connecting seats. Each anchor plate on the same side has a slot, and a rubber plate is placed in each slot. A waterstop is also provided between the connecting seats. A positioning plate is provided on the bottom of one of the rubber plates, and a stainless steel plate is provided above the protrusion for shielding and protection. This boltless comb-tooth plate noise-reducing and reinforced expansion joint uses two connecting seats and multiple anchor plates in combination. The waterstop is fixed between the two connecting seats by rivets and threaded connections. The two rubber plates are engaged by comb-tooth interlocking, increasing the range of expansion and contraction, reducing shelling and affecting connection and use. With the cooperation of the stainless steel plate, the T-shaped block and the T-slot on the protrusion interlock, achieving the stainless steel plate's interception and protection of the area below the rubber plate.

The present application relates to the technical field of underground gas storage, and discloses a double-layer sealing structure for underground gas storage, a design method and a construction method thereof. In the double-layer sealing structure, a complete closed shell is formed by on-site roll bending and continuous welding of a high-elastic steel plate, and together with a sliding layer, forms an overall sealing system without joints and weak links. Compared with the traditional block lining or the scheme of setting expansion joints, the leakage hidden danger caused by stress concentration or material aging at the joints or joints is completely avoided, and the long-term gas-tight reliability of the gas storage under the repeated action of high internal pressure is improved. At the same time, the sliding layer is made of flexible material, which can effectively absorb the displacement and cracking deformation of the surrounding rock caused by pressure change, and uniformly transmit the deformation to the high-elastic steel sealing layer, so that the sealing structure can be transformed from passive adaptation to active adaptation, avoiding stress concentration and crack propagation caused by deformation incoordination of the traditional rigid lining, thereby preventing the sealing layer from being torn or pierced.

The utility model discloses a novel seamless bridge deck connecting plate with vertical pull rod, including the upper layer polyurethane pavement layer is the upper structure, and the semi -continuous UHPC bridge deck connecting plate is the lower structure, the semi -continuous UHPC bridge deck connecting plate is composed of a plurality of UHPC connecting plate blocks, and is connected through corrugated reinforcement between each UHPC connecting plate block, and the corrugated reinforcement is wrapped with non -bonding layer, the upper surface of UHPC connecting plate block is equipped with T type expansion joint, and the T rib of T type expansion joint fills with compressible silicone rubber, the lower surface of UHPC connecting plate block is equipped with the reserved groove, and the vertical pull rod is arranged in the reserved groove, and the lower extreme of vertical pull rod is welded fixed with the main beam, and the upper extreme of vertical pull rod is connected with the upper layer polyurethane pavement layer through the anchor rod, effectively promote the ability of connecting plate resistance negative bending moment deformation, avoid the arching phenomenon of connecting plate because of the negative bending moment effect, promote the integrity of connecting plate and main beam.

The application discloses a kind of super high-rise building floor decorative ground anti-cracking construction methods, can absorb the internal stress caused by different structure micro deformation, reduce the risk of decorative ground cracking, thereby reduce floor decorative ground repair frequency and cost;The construction method includes determining expansion joint position according to super high-rise building floor decorative ground anti-cracking construction design drawing;Elastic cushion layer is laid on the top surface of structure layer;In the top surface of elastic cushion layer, separate strip is set at the determined expansion joint position;Leveling layer is poured on the top surface of elastic cushion layer, and expansion joint is formed at the position of separate strip;After cleaning expansion joint, expansion joint material is filled to a certain height in expansion joint;Finishing layer is laid on the top surface of leveling layer;Finished expansion joint is installed in expansion joint and the like.

This invention discloses a FEBD seamless bridge deck connection plate and a cross-joint bridge deck structure and construction method, comprising several UHPC blocks arranged sequentially along the longitudinal direction of the bridge, T-shaped expansion joints between adjacent UHPC blocks, and compressible elastic material filling the T-shaped expansion joints. The invention is characterized by further comprising: steel formwork, tension cables, insulating hoses, and series springs. This invention not only automatically adapts to the expansion and contraction deformation of the bridge caused by temperature changes, but also resists or eliminates uneven stress concentration along the transverse direction of the T-shaped expansion joints, and improves the overall rotational and flexural deformation performance of the beam ends. Furthermore, when the compressible elastic material loses its elasticity and undergoes permanent compression deformation after prolonged use, causing it to detach from the steel formwork within the T-shaped expansion joint, the tension cables can be used to bring the series-connected UHPC blocks together, thereby reducing the width of the T-shaped expansion joint and allowing the compressible elastic material to re-fit and contact the steel formwork.

The application relates to the field of bridge construction, in particular to a temporary treatment device for expansion joints before bridge deck pavement, which comprises a mounting plate and two sealing plates arranged on the mounting plate, the two sealing plates are used for abutting on the end faces of two adjacent box girders, an adjusting assembly is arranged on the mounting plate, the adjusting assembly is used for adjusting the positions of the sealing plates and making the two sealing plates abut on the end faces of the adjacent box girders, and a fixing assembly for fixing the mounting plate in a reserved gap is arranged on the mounting plate. The application can improve the construction progress of the whole bridge.

This invention relates to the field of building waterproofing construction technology, providing a replaceable water-stopping device and an expansion joint sealing system. The replaceable water-stopping device includes: a cylindrical body with a receiving cavity, an inlet opening on the radially outward side of the receiving cavity, and an outlet channel within the cylindrical body; a selectively permeable membrane, with the inlet opening also equipped with a selectively permeable membrane; a hydrophobic liquid sealing medium with a density less than seawater within the receiving cavity, allowing seawater to enter the receiving cavity while preventing the hydrophobic liquid sealing medium from flowing out; the bottom of the receiving cavity communicating with the outlet channel; and a counterweight, positioned within the receiving cavity and above the hydrophobic liquid sealing medium, and slidingly sealingly engaging with the receiving cavity vertically. This invention solves the defects of existing technologies, such as irreplaceable sealing structures, poor resistance to marine environmental corrosion, inability to actively drain water, and difficulty in adapting to dynamic load deformation.

The utility model relates to the technical field of building engineering discloses a kind of floor leveling expansion joint structure, including bottom plate, the top end of the bottom plate is fixedly connected with slide rail, the outer wall of the slide rail is slidably connected with two sliding blocks one, the top end of the sliding block one is slidably connected with support plate, the left side of the support plate is fixedly connected with two damper one, the left side of the damper one is fixedly connected with connecting plate, the outer wall of the damper one is equipped with spring one, the left side of the connecting plate is fixedly connected with damper two, the outer wall of the damper two is equipped with spring two, the similar side of two the damper two is fixedly connected with baffle, the outer wall of the connecting plate is provided with cleaning assembly for cleaning gap dust.The utility model can dynamically adapt the stress generated by expansion and contraction of floor tile under different working conditions, effectively reduce cracking, arching and other problems, maintain the stability of ground structure, and prolong the service life of floor tile.

The utility model relates to prefabricated component technical field, concretely relates to a spliced copper tailing sand drainage ditch, including first drainage ditch main part and with first drainage ditch main part connects second drainage ditch main part, be provided with the connecting module between first drainage ditch main part and second drainage ditch main part, the connecting module will first drainage ditch main part and second drainage ditch main part connection state fixed, first drainage ditch main part and second drainage ditch main part between reserve expansion joint, the upper end of expansion joint is provided with expansion joint filling module, and connecting module will first drainage ditch main part and second drainage ditch main part fixed constitute complete drainage ditch, and the expansion joint that can reduce the problem of the expansion joint that exists in the integrated forming through the formation, and expansion joint filling module fills the expansion joint between first drainage ditch main part and second drainage ditch main part, guarantees the sealing property of expansion joint, avoids the water body and leaks through expansion joint gap.

The utility model relates to steel bridge expansion joint baffle technical field discloses a novel steel bridge expansion joint baffle device, including base, the base top is provided with two support frames, is provided with the connecting assembly connected with steel bridge expansion joint in the support frame inside, and the connecting assembly includes the empty slot setting in the support frame inside, is provided with the die carrier in the empty slot inside, is provided with the pouring groove on one side of die carrier, and a plurality of damping blocks are arranged on the pouring groove inner wall, the empty slot inner wall is provided with a plurality of butt joints, both sides of the plurality of butt joint inner walls are provided with the inclined plate, both sides of die carrier outer wall are provided with a plurality of sliding slots, and the sliding block and a plurality of clamping plates are arranged on the sliding slot inner wall. The utility model discloses through the die pouring cooperation support frame and guardrail expansion joint connection, can effectively avoid traditional steel baffle edge warping, bolt loosening and separation disease, and smearing concrete outside the support frame can reduce the color difference, improve the beautiful of baffle, and simple structure is convenient for replacement and carries.

The utility model discloses a bridge type steel expansion joint cleaning device relates to bridge maintenance technical field, including the grip lever, and the adjustable length adjusting lever is arranged in the grip lever, and the tail end fixed mounting of grip lever has the anti -drop handle, is provided with length locking mechanism on the grip lever and length adjusting lever, and the bottom of length adjusting lever is provided with the cleaning plate angle adjusting mechanism, is provided with the cleaning plate on cleaning plate angle adjusting mechanism, and the adjustable shovel knife is arranged on the cleaning plate, and is provided with shovel knife fixing mechanism on the cleaning plate and shovel knife, and is provided with cleaning illumination mechanism on length adjusting lever, in the utility model, through the setting of cleaning plate, shovel knife, cleaning plate angle adjusting mechanism, shovel knife fixing mechanism, cleaning illumination mechanism, length adjusting lever, length locking mechanism etc. structure, can shovel and dig out stubborn material, and the cleaning effect of expansion joint is better, and main spotlight and side photo lamp can light the space in expansion joint, and the expansion joint is observed conveniently, and the use of device is convenient.

The utility model discloses a slab type ballastless track base plate formwork, including two side steel mould, the side steel mould is by base plate side mould top surface steel sheet, base plate side mould bottom surface steel sheet, base plate side mould panel and base plate side mould formwork rib plate welding composition, and the square steel of being connected between two side steel moulds, and the base plate expansion joint plug -in board of being set between two side steel moulds and being at square steel rear, the utility model discloses adopts the bolt assembly of block type steel formwork, and each base plate is by two steel moulds, and expansion joint position is disconnected with square steel and is connected two side formworks and square steel through bolt, and the expansion joint foam board is clamped between two base plate formworks with the collocation plug -in board, and this design effectively avoids the disturbance of concrete pouring and personnel trample to expansion joint, ensures that expansion joint is vertical, and linear is straight, greatly improves expansion joint construction quality, lays the foundation for track plate accurate laying, guarantees the high -quality completion of high -speed railway slab type ballastless track base plate construction.

The utility model relates to the technical field of roof structures, and provides a deformation joint waterproof structure, which comprises a first roof panel, a second roof panel, a third roof panel and a fourth roof panel, the second roof panel is arranged opposite to the first roof panel and comprises a second panel body and a first water guide groove formed in the end of the second panel body, the first water guide groove is provided with a first water guide side wall, a deformation joint is formed in the side, facing the first water guide side wall, of the buckling cover part, and the first water guide side wall and the buckling cover part are arranged in a buckled mode and located in the deformation joint. The deformation joint waterproof structure aims at solving the problem that in the prior art, a roof deformation joint is prone to water leakage.

This utility model belongs to the field of furniture technology, specifically relating to a concealed locking mechanism for furniture connectors. It includes a first board and a second board, with a wooden plug on the first board. The first board and the second board are connected by a connector, which includes a lock head with a slot. The lock head is fixed to the second board by bolts. The second lock head has a sliding groove inside and a locking block inside. The locking block is elastically connected to the inner wall of the second lock head by a spring. This concealed locking mechanism primarily secures the connector through the mechanical locking of the locking block and the slot. Simultaneously, a push rod inserted into an expansion joint causes the expansion joint to elastically deform and tightly adhere to the inner wall of the groove, generating significant static friction for auxiliary fixation. This dual-fixing mechanism significantly improves the overall stability and shear resistance of the board connection, effectively preventing loosening or displacement of the connection.