56results about How to "Avoid vertical displacement" patented technology

Floor panels are shown, which are provided with a mechanical locking system having tongue and grooves provided with protrusions and cavities which are displaceable in relation to each other and configured such that the protrusions can obtain a vertically unlocked position where they match the cavities and a vertically locked position where the protrusions overlap each other.

A male housing (10) includes male terminal fittings (11), and a receptacle (12) for surrounding tabs (11a) of the male terminal fittings (11). A female housing (20) includes female terminal fittings (21) and a tubular fitting (29) fittable on the receptacle (12). Since preventing projections (32A, 32B, 32C) for preventing relative displacements of the receptacle (12) and the tubular fitting (29) by contacting the outer surface of the receptacle (12) are provided at the back end of the inner surface of the tubular fitting (29), an abrasion between the terminal fittings (11, 21) due to fine sliding movements resulting from the relative displacements of the two housings (10, 20) can be prevented.

The disclosure provides, among other things, a paver that includes a body having a top surface, a bottom surface opposite the top surface, and a peripheral side. The peripheral side is defined about a perimeter of the paver and joins the bottom and top surfaces. The peripheral side defines a peripheral edge displaced from the top surface and the bottom surface that traverses the perimeter of the body along the peripheral side. The edge is adapted to engage a complementary edge on a peripheral side of an adjacent paver, such that the pavers interlock when a vertical force is applied to the paver. In another aspect, a masonry wall unit is provided for building walls similar in concept to the paver.

The invention discloses a cutting device for packing paperboard processing and relates to the technical field of packing paperboard processing machines. The cutting device comprises a bottom plate. Asupporting frame is fixedly mounted on the bottom plate, an L-shaped supporting plate is fixedly mounted in the supporting frame, and a paperboard feeding inlet is formed in the side wall of the supporting frame. Guiding rotating rollers and a driving rotating roller are rotationally arranged on the L-shaped supporting plate. A blade is fixedly mounted at the end, away from a supporting rotating plate, of a cutting rotating plate. A transmission pin shaft is sleeved with a limiting sleeve slidably connected with a kidney-shaped hole. The cutting device is high in paperboard cutting efficiency,meanwhile, rightward steady moving of a paperboard is ensured through the limiting effect of limiting rollers and the guiding rotating rollers, and thus position offset in the vertical direction is avoided; the paperboard is fed rightwards in an equal-length mode and cut by the blade, thus equal-length uniform cutting of the paperboard is ensured, and the cutting quality of the paperboard is ensured; and an arranged supporting block corresponds to the blade and plays a role in supporting the paperboard, and stable cutting of the paperboard is ensured.

The invention relates to a structure for preventing a bridge from overturning transversely and a construction method of the structure and belongs to the technical field of bridge structures. The structure comprises bridge deck slab bottom embedded steel plates, channel steel plates, corbels, steel anchor rods and nuts. The corresponding steel plates are embedded in the bottom of a bridge deck slab along the two transverse sides and firmly connected with the bridge deck slab through anchoring parts. The channel steel plates and the embedded steel plates are connected in a welded manner. The steel corbels or the reinforced concrete corbels are arranged at the positions, close to the top, of a pier. Oval holes are reserved in the bottoms of the channel steel plates and the corbels. The diameter of each steel anchor rod is smaller than the width of each oval hole. The steel anchor rods vertically penetrate the reserved holes. The two ends of each steel anchor rod are screwed through the nuts. Tiny gaps are reserved between the nuts at the lower ends and the bottom faces of the corbels, so that a bridge deck system is allowed to slide freely in the longitudinal direction of the bridge, and meanwhile the bridge deck system and the pier can be connected in a pulling manner. The structure for preventing the bridge from overturning transversely is reasonable in stress, capable of obtaining materials easily, simple, convenient to construct, economical and practical.

A repeating animal capture and containment system includes a housing defined by a set of peripheral walls. An opening is formed in one of the peripheral walls and a removable, ramped trapping device is removably mounted within the housing and aligned with the opening in the peripheral wall. The ramped trapping device allows an animal, such as a rodent, to enter into the housing yet prevents the captured animal from exiting the housing. The housing is sized to include a containment area that communicates with the trapping device by a passageway. The containment area provides a living space for the captured animal until it can be set free. The removability of the ramped trapping device allows the device to be removed for cleaning and maintenance as needed. The system further includes features that prevent lateral and/or vertical displacement of the ramped trapping device.

A bracket system and method to retrofit a subsurface water meter enclosure with a mount so as to provide secure positioning means suitable for components related to a water meter such as water-usage monitoring equipment. The system is only removable from the water meter enclosure via disassembling the water meter enclosure.

The invention discloses a monitoring device for security and protection, and relates to the technical field of security and protection equipment production. The monitoring device comprises a connecting seat with a rectangular cross section, a protective shell is arranged below the connecting seat, a main body is arranged inside the protective shell, a connecting shaft penetrates through the frontside on the protective shell, and a camera is embedded on the front side of the main body. The monitoring device is novel in design; an adjusting shaft is rotated to drive a driving bevel gear to rotate, the driving bevel gear drives the main body to rotate through a driven bevel gear, a rotating shaft, a rotating disc and the protective shell, the working range of the camera is adjusted, and themonitoring range of the monitoring device is enlarged; a connecting shaft, a nut, a connecting block, a stopping block and a through hole are matched, so that disassembly and assembly are facilitated;the adjusting shaft is prevented from transversely moving left and right through a protective sleeve; and through matching of a bearing block and a shaft sleeve, the adjusting shaft is prevented frombeing shifted in the vertical direction, and the stability of the monitoring device is increased.

The invention discloses a uniaxial move multi-track parallel independent type 3D printing device and printing method, and relates to the technical field of building construction, and the printing device and printing method aim to solve the problems that an existing 3D printing device is low in printing efficiency, not high in precision and poor in flexibility. The uniaxial move multi-track parallel independent type 3D printing device comprises a climbing device capable of moving vertically relative to a printed building body and a printing device body connected with climbing components. The printing device body comprises a track frame and printing head cross beams. The track frame comprises a plurality of grid units. Each grid unit is internally provided with the multiple printing head cross beams arranged independently, and the two ends of each printing head cross beam can slide along the track frame. Printing heads which can synchronously move on a horizontal printing surface with the printing head cross beams are densely arranged on the printing head cross beams. The printing heads are used for ejecting building materials. Printing construction conducted on a current cross section layer can be completed just through one-time movement of the printing head cross beams. The printing device body is jacked up to the height of a to-be-printed cross section layer of the upper story of the building body by controlling the climbing device, and accordingly all cross section layers are printed from bottom to top in a layer-by-layer mode till printing construction of the whole building body is completed.

A braking appliance (1) positioned on the load-suspension device (24) holds the load-suspension device fast by means of frictional engagement on its guide rails (2) while the load suspension device is at a standstill; and overrides the frictional engagement by means of a corresponding command. The load-suspension device is raised by elastic supports (27). The braking appliance contains sensors (8) for detecting the vertically directed brake holding loads.

The invention discloses a multi-beam detection device and method based on worm gear lead screw lifting. The device comprises a vertical shaft, a stand, a thread lifting rod, a lift truck, a worm gear lead screw lifting machine, an instrument stand and an auxiliary instrument bin. A track is arranged on the inner wall of the vertical shaft, and the lift truck moves in the track through truckles; the worm gear lead screw lifting machine is fixedly arranged on the stand and is connected with the lift truck through the thread lifting rod; the instrument stand is connected with the thread lifting rod by a flange plate, a multi-beam energy transducer stand is arranged at the bottom of the instrument stand; the auxiliary instrument bin is arranged in the middle of the instrument stand, a pressure sensor and a surface-layer velocimeter are arranged in the auxiliary instrument bin and are used for measuring dynamic draft and surface-layer sound velocity. The multi-beam detection device and method are used for portably installing and detecting various models of intermediate-shallow water multi-beam detection systems. The multi-beam detection device and method can be widely applied to oceanographic survey, ocean hydrographic surveying and oceanographic engineering.

Provided is a easily manufactured, easily installed, disposable, re-usable, sanitary coupling and seal-forming system which can be 1) front-mounted on circulating systems without breaking into circulatory line tubing or other conduits, and 2) opened and reclosed accessibly, without compromising the sealing integrity of the sealing assembly or the mechanical integrity of a one-piece system. The seal fitting comprises two subcomponents with a linking system which can be opened, or alternatively act as a hinge.

The invention discloses a convenient letterbox device, which comprises a base and a storage bin arranged in the base and penetrating front and back, the middle end of the bottom side wall of the storage bin is provided with a first arc groove, the A left sliding groove and a right sliding groove are arranged oppositely on the top of the left side wall of the container bin and on the top of the right side wall, and the side wall of the container top is provided with a connecting channel connecting the left sliding groove and the right sliding groove. Through the groove, the base plate that can slide up and down is set in the container, the middle end of the bottom of the base plate is provided with a convex block, and the bottom of the convex block is provided with a second arc groove. The structure of the present invention is reasonable. The operation is simple, the handling is convenient, the clamping of the mailbox is safe and stable, and the mailbox will not shift, which is convenient for the subsequent coding operation of the mailbox. At the same time, it can clamp mailboxes of different thicknesses, which greatly reduces the cost of clamping and fixing the mailbox, and is suitable for popularization. .

A retainer for aircraft hangar doors in which vertical movement of doors is adjustably limited to allow sufficient movement to permit door removal from their supporting tracks or to prevent such undesirable displacement during high wind conditions as experienced during hurricanes and tornadoes or violent earth motions during earthquakes. The retainer in its retaining position does not obstruct normal opening and closing of the doors and is economical to manufacture and install.

The invention discloses a clamping test bench of a tunnel protective door, and a wind pressure testing system comprising the clamping test bench, and belongs to the technical field of tunnel protective door detection. By arranging a test bench body and a test bench sliding cover which can be correspondingly matched, a protective door assembly is stably clamped in the clamping test bench effectively, and by arranging assemblies such as an air source generation device, an air storage tank and a three-position and four-way magnetic exchange valve corresponding to the clamping test bench, a wind pressure test of the tunnel protective door is effectively achieved. According to the clamping test bench and the wind pressure testing system comprising the same, the structure is simple, control is easy and convenient, the state of the tunnel protective door affected by piston wind in a tunnel can be effectively simulated, selectivity of the testing scheme is high, the accuracy of a testing result is high, a basis can be provided for the structural design and matched mounting of the tunnel protective door, safety and reliability of application of the tunnel protective door are improved, the application cost of the tunnel protective door is lowered, and great application and promotion value is achieved.

The bracket is to be installed to the inner face of the peripheral rim of a bathtub, to attach the latter to the inner peripheral edge portion of a fixed casing. The bracket has a rigid head portion which is fixedly attached to the inner rim of the bathtub, and a downwardly depending arcuate resilient foot which carries at its lower end a foot. When installing the bathtub inside the casing and more particularly inside the casing peripheral edge portion, the tub is downwardly displaced until its rim comes into downward abutment against the casing peripheral edge portion, the bracket slidingly abutting against the casing peripheral edge portion with a corresponding resilient foot deformation, allowing the foot to slide under the casing peripheral edge portion and to snap itself thereunder for preventing vertical displacement of the bathtub relative to the casing peripheral edge portion. Indeed, the casing peripheral edge portion is then wedged between the bracket foot and the bathtub rim.

A vehicular module attachment assembly includes a vehicular cabin module having a peg that includes a foot. A locking device is slidably coupled to the peg. A slot is formed in a cabin floor including first and second grooves configured to retain the foot. The locking device adjusts between an unlocked position, wherein the peg is slidable between the first and second grooves, and a locked position, wherein the peg is retained in the second groove

A method of installing a wind turbine generator onto a floating foundation. The floating foundation has variable buoyancy and is pre-ballasted to float at a predetermined vertical position before installation of a wind turbine generator component onto the floating foundation. A wind turbine generator component supported by lifting equipment is brought towards the floating foundation until contact is made with the floating foundation. Ballast is removed from the floating foundation to increase the buoyancy of the floating foundation such that weight of the wind turbine generator component supported by the floating foundation is increased from substantially zero to substantially the entire weight of the wind turbine generator component. The vertical position of the floating foundation is substantially unchanged during transferring weight of the wind turbine generator component onto the floating foundation.