38results about How to "Reduce the size of the force" patented technology

The invention discloses a three-dimensional hydraulic jacking machine and a three-dimensional jacking system. The three-dimensional hydraulic jacking machine comprises a frame, a main oil cylinder located on the top of the frame and suitable for sliding horizontally along the surface of the frame, a first lateral oil cylinder and a second lateral oil cylinder located on the circumferential side face of the main oil cylinder and a walking wheel assembly suitable for driving the frame to walk. One ends of the first lateral oil cylinder and the second lateral oil cylinder far away from the main oil cylinder are connected to the frame; and the main oil cylinder stretches along a Z direction, the first lateral oil cylinder stretches along an X direction and the second lateral oil cylinder stretches along a Y direction. The three-dimensional hydraulic jacking machine is compact in structure and flexible to lift, and multiple three-dimensional hydraulic jacking machines can be matched to operate to improve the lifting tonnage, so that the three-dimensional hydraulic jacking machine is suitable for centering and folding work of subsections of ship bodies and bridges and large steel structural parts.

The invention provides a multifunctional tin ore collecting, screening and packaging vessel and is suitable for offshore operation. The problem that in the prior art, a mining vessel is large in power waste and poor in wave resisting capability is solved. The multifunctional vessel comprises a vessel body, wherein a propeller is arranged at the tail portion of the vessel body, a bridge frame is hinged and connected to the vessel body through a bridge frame fixing base, a cutter suction head is arranged at the tail end of the bridge frame, a lifting winch for achieving lifting of the bridge frame is arranged on the vessel body, upper and lower layers of decks re arranged on the vessel body, a conical screen and a primary jigging machine which are vertically arranged are arranged on the upper layer of decks, and a secondary jigging machine located below the primary jigging machine is arranged on the lower layer of decks. The multifunctional tin ore collecting, screening and packaging vessel is suitable for tin ore collecting, screening and packaging in offshore zone operation, is small in power waste and has very good practicability.

The invention discloses a basement exterior wall single-face formwork supporting system. The basement exterior wall single-face formwork supporting system comprises multiple split screws and steel pipe inclined struts. An embedded steel bar is welded to one end of each split screw, and the other ends of the embedded steel bars are connected with the inner side of an underground supporting pile. One ends of the steel pipe inclined struts are fixedly connected with the side of a basement exterior wall, and the other ends of the steel pipe inclined struts are connected with the top ends of steelbar ground anchors pre-buried on the inner sides of a basement bottom plate. Hanging net grout spraying is arranged on the outer side of the underground supporting pile, and a full rack is arranged atthe top of the basement bottom plate. In the basement exterior wall single-face formwork supporting system, during basement exterior wall single-face formwork construction, inclined steel pipes withgood rigidity are used for transmitting transmitted horizontal lateral pressure to the ground anchors, horizontal force is converted into pressure to the building ground and shear force to the groundanchors, embedded bars on the supporting piles and the split screws planed on the concrete side face of the exterior wall are used for connecting and butt welding, an exterior wall formwork is reinforced, operation is overall safe and firm, stability is good, and the phenomenon that formwork exploding and formwork expanding happen during concrete pouring is avoided.

The invention discloses a two-way electromagnetic bench vise, which comprises a groove shell, the center of the upper surface of the groove shell is provided with a working groove interval, and the groove casing is located in the working groove interval The center of the interior is provided with a main hollow shell with an integrated structure, a 51 single-chip microcomputer is installed on the top of the main hollow shell, and an iron core with a coil on the side is installed in the center of the main hollow shell , the control input end of the coil is connected to the control output end of the 51 single-chip microcomputer through wires. The invention can perform electromagnetic force resistance on the threaded rod used for fastening, thereby reducing the force on the thread structure during fastening and enhancing its service life. In addition, the device has an anti-overload protection mechanism, which can effectively prevent In addition, the device can simultaneously fix two sets of parts, so the utilization rate is high and the practicability is strong.

The invention belongs to the technical field of float glass polishing, and discloses a polishing device and a polishing method for improving the flatness of float glass. The polishing device comprises a feeding mechanism, a polishing mechanism and a flushing mechanism, wherein the feeding mechanism comprises a shell and a conveyor belt device; a cleaning chamber and an installation chamber are arranged in the shell; the conveyor belt device is fixed into the installation chamber; the top surface of the conveyor belt device is higher than the top surface of the shell; a conveyor belt in the conveyor belt device adopts a fine mesh-shaped structure; a U-shaped plate, a guiding roller group and a cleaning fluid guiding box are further arrange din the installation chamber; and a belt guiding roller group is further arranged in the cleaning chamber. According to the polishing device and the polishing method for improving the flatness of the float glass provided by the invention, the processes of automatic feeding, automatic positioning, automatic polishing, automatic cleaning and drying and the like are combined, so that the working efficiency of the whole polishing device can be greatly improved; and the guiding roller group is contained in an automatic feeding structure, so that the separation between a polishing area and a cleaning area is effectively realized, and the polishing quality is ensured.

A road drilling detection device disclosed by the present invention comprises a rack fixed on a vehicle, the rack is in shaft connection with a supporting arm through a rotating motor, two ends of the supporting arm are respectively provided with a clamp holder, a coring drill cylinder is installed in the clamp holder, the top of the coring drill cylinder is in threaded connection with a top plate, and the center of the top plate is provided with a first connecting hole. A plurality of second connecting holes are evenly formed in the edge of the top of the coring drill barrel, an inner core barrel is inserted into the coring drill barrel, a positioning bolt fixedly connected with the inner core barrel is arranged on the side wall of the coring drill barrel, the inner core barrel comprises two barrel wall assemblies hinged together, and a mounting frame is fixed to the top of the rack; the end, facing the inner side of the vehicle, of the mounting frame is provided with a coring motor through a coring oil cylinder, and the end, facing the outer side of the vehicle, of the mounting frame is provided with a drilling motor through a drilling oil cylinder. The defects in the prior art can be overcome, a sample can be taken out conveniently, drilling coring and sample taking are carried out at the same time, and the sampling period is shortened to the maximum extent.

An adjustable light-emitting diode (LED) lamp comprises a frame and a fixed frame. At least one LED optical module is contained in the frame, the fixed frame is located on two opposite borders of the frame and comprises an installation supporting plate and two adjusting frames, and the two adjusting frames are located on the installation supporting plate in a relative sliding mode. According to the adjustable LED lamp, due to the fact that at least one locating groove with a certain length is arranged in the installation supporting plate, and curve grooves are arranged in the adjusting frame, adjustment of the fixed frame in the length, width and height directions and on relative angles can be guaranteed so that the adjustable LED lamp can be adapted to different use environments.

The invention discloses a building steel structure, and relates to the technical field of structural engineering. The problem that the visual effect and the viewing experience of users are influenceddue to the oversize cross section of a gravity columella is solved. According to the embodiment, the building steel structure is provided and comprises a first cross beam, a second cross beam and a gravity columella, the first cross beam is located below the gravity columella, the column leg of the gravity columella is hinged to the first cross beam, the second cross beam is located on the gravitycolumella, a gap is reserved between the column head of the gravity columella and the second cross beam in the vertical direction, the height of the gap in the vertical direction is larger than the deformation quantity of the second cross beam when the second cross beam bears the maximum pressure load in the vertical direction. The building steel structure is used for construct the steel frame structure of buildings.

The invention relates to the technical field of suspension devices, and discloses a portable product suspension box which comprises a box body and a Z-direction magnetic suspension mechanism arranged in the box body, wherein the Z-direction magnetic suspension mechanism comprises a Z-direction permanent magnet and at least three Z-direction electromagnets arranged around the Z-direction permanent magnet; the Z-direction permanent magnet and the Z-direction electromagnets are located at positions on the lower inner wall of the box body; a Z-axis direction extending up and down, an X-axis direction extending left and right and a Y-axis direction extending front and back by taking the box body as a reference are formed in the box body; and the magnetic pole direction of the Z-direction electromagnets after being electrified is opposite to that of the Z-direction permanent magnet. When a product with magnetism is arranged above the permanent magnet, a suspension effect can be generated by a repulsive force generated by the permanent magnet and an attractive force generated by the electromagnets, and therefore, the product can be better protected when being transported or exhibited by utilizing the suspension box disclosed by the invention.

The invention discloses a warning guardrail for building construction. The warning guardrail comprises a supporting frame, wherein the inner side of the supporting frame is rotationally connected with a protective baffle plate; storage grooves are uniformly formed in the surface of the protective baffle plate; moving slideways are arranged on the side surfaces in the storage grooves; the interiors of the moving slideways are connected with movable frame groups in a sliding manner; warning reflecting plates are fixedly connected to the surface of the outer part of the protective baffle plate and are positioned between the storage grooves; the middle position of the top of the protective baffle plate is fixedly connected with a limiting assembly; the top of the inner side of the supporting frame is fixedly connected with an overturning limiting mechanism; the middle position of the bottom end of the back surface of the supporting frame is fixedly connected with a bearing butt strap; and the surface of the bearing butt strap uniformly penetrates through and is connected with stable inserting rods in a sliding manner. The invention relates to the technical field of building construction. According to the warning guardrail for building construction, the structure is prevented from being damaged due to the fact that the guardrail is overturned too fast by wind power, meanwhile, a supporting effect is achieved for the guardrail, protection can be achieved, and effective use of the warning effect can be guaranteed.

The invention relates to the technical field of building structures, and discloses a keel structure, a sound insulation curtain wall and a curtain wall system.The keel structure comprises a wall body, a connecting piece is fixedly installed on the side face of the wall body, and according to the keel structure, the sound insulation curtain wall and the curtain wall system, an original corner brace is changed into a reserved connecting piece similar to an I shape; the U-shaped inverted buckles are installed on the side faces of the main keels, the main keels are connected to the connecting pieces in a clamped mode through the inverted buckles, and therefore the keels can be fixed and positioned only by buckling the hooks into the connecting pieces, and the clamping grooves are further formed in the main keels. The ends of the auxiliary keels are clamped into the clamping grooves to be fixedly positioned and installed in the same mode as the main keels, and then the supporting blocks which are installed on the wall body, located below the auxiliary keels and used for supporting are combined to be matched, so that stable installation of the auxiliary keels is achieved, and the transverse bearing capacity of the auxiliary keels is improved. The installation operation of the whole keel frame structure is greatly simplified, the overall working efficiency is improved, and meanwhile later disassembly is facilitated.

The invention relates to an array type silencer with a stable structure.The array type silencer comprises a box body, a silencing mechanism, a fixing mechanism and a lifting mechanism, the silencing mechanism comprises two stand column sets, a silencing column is arranged between the two stand column sets, the fixing mechanism comprises a bolt rod, and a bolt head is arranged at one end of the bolt rod. According to the array type silencer with the stable structure, the silencing mechanisms are spliced through the fixing mechanism, due to the fact that bolt rod of the fixing mechanism is limited by a sleeve rod and a tension spring, the situation that the bolt rod loosens and falls off is avoided, the silencing column can be lifted through the lifting mechanism, and therefore the stress of the fixing mechanisms is reduced, and the stability of the mounting structure is improved. The box body is divided into the inner shell body and the outer shell body, inert gas is injected between the inner shell body and the outer shell body, and the carbon dioxide detector is installed, so that the damage condition of the structure can be found in time, the damage position of the structure is repaired, and the stability of the structure is ensured.

The invention provides a connecting device applied to an excavator and the excavator. The connecting device comprises a pin shaft for connecting a bucket rod and a swing arm and a buffer piece for providing buffer force to the pin shaft, wherein the bucket rod is inserted into the swing arm, and the pin shaft penetrates through the bucket rod and the swing arm, so that the bucket rod and the swingarm are rotatably connected; a baffle is arranged at the top of the pin shaft; and the buffer force is parallel to the axis line of the pin shaft, and the buffer force points away from the baffle. Byusing the connecting device, the service life of the pin shaft can be prolonged, the possibility of fatigue fracture of the baffle can be effectively reduced, and meanwhile, the reliability of the connection between the bucket rod and the swing arm is ensured.

The invention discloses a support structure for bridge maintenance, comprising a support base and an auxiliary support base fixed on a horizontal support table, wherein a telescopic hydraulic cylinderis connected with a jacking seat through a piston rod, the side edge of the groove is symmetrically provided with a vertical sliding groove, both sides of the lower end of the ejector seat are provided with protruding plates integrally formed with the ejector seat, and the end of the protruding plate is connected with a pulley through a pin shaft, sliding grooves are arranged on both sides of theupper end of the support base, the auxiliary support base comprises an auxiliary support platform and a plurality of I-shaped platforms, through the butt joint protrusion plate of the I-shaped platform is slidably connected with the butt joint sliding groove, the I-shaped platforms can be stacked on each other until the upper end of the I-shaped platform contacts with the lower end of the bridge,so that the I-shaped platform of the jacking seat and the auxiliary support seat jointly plays a supporting role on the bridge, improves the supporting effect, and reduces the stress of the telescopic hydraulic cylinder.

The invention discloses a two-way electromagnetic type bench vice. The two-way electromagnetic type bench vice comprises a groove shell. A working groove range is arranged at the center of the upper surface of the groove shell, a main hollow shell body is arranged at the center, in the working groove range, of the groove shell, wherein the groove shell and the main hollow shell body are of an integrated structure, a 51single chip microcomputer is installed at the top of the main hollow shell body, an iron core with the side face being sleeved with a coil is installed at the center of the interior of the main hollow shell body, and the control input end of the coil is connected with the control output end of the 51single chip microcomputer through a wire. According to the two-way electromagnetic type bench vice, an electromagnetic type strength resisting effect can be conducted on a threaded rod used for fastening, so that stress magnitude of a threaded tooth structure in the fasteningprocess is reduced, and the service life of the two-way electromagnetic type bench vice is prolonged; and in addition, the two-way electromagnetic type bench vice is provided with an anti-overloadingprotective mechanism, the phenomenon that a thread is damaged due to the fact that the twisting strength is overlarge can be effectively prevented, moreover, the two-way electromagnetic type bench vice can simultaneously fix two sets of parts, the utilization rate is high, and the practicability is high.

The invention discloses a connecting structure for top blocks of molds, which comprises a universal sliding seat and a cylindrical knockout pin, wherein the universal sliding seat is provided with a positioning hole, the knockout pin passes through the positioning hole, the connecting structure also comprises a socket head cap screw and a U-shaped positioning block, the lower end of the knockout pin passes through the universal sliding seat, the lower end of the knockout pin is provided with gaps along the circumferential direction thereof, the height of each gap is matched with the thickness of the U-shaped positioning block, the distance between two branch plates of the U-shaped positioning block is matched with the distance between two gaps in the knockout pin, the two branch plates of the U-shaped positioning block are inserted into the gaps of the knockout pin, the universal sliding seat and the U-shaped positioning block are provided with mounting holes, and the socket head cap screw after passing through the mounting holes connects the universal sliding seat with the U-shaped positioning block. The connecting structure disclosed by the invention is stable in structure, a phenomenon that the screw is loosened or fractured is not easy to occur, and the knockout pin and the U-shaped positioning block can be engaged stably and firmly; used parts are all common parts, therefore, the connecting structure is low in cost; and the connecting structure is simple and firm in structure, and convenient for mass production, popularization and application.

The invention discloses a national park range rapid identification system in the technical field of park equipment, and the system comprises a supporting rod, the top end of the supporting rod is provided with a mounting seat, the upper surface of the mounting seat is rotatably provided with a mounting rod, the outer side wall of the mounting rod is provided with a display and a processing device, and the processing device is electrically connected with the display. The included angle between the displayer and the wind direction is reduced by rotating the mounting rod above the mounting base, and when the front face or the back face of the displayer in the device is subjected to large wind force, the mounting rod can rotate above the mounting base, so that the displayer rotates along with the mounting base to be used for reducing the included angle between the displayer and the wind blowing direction, and the displayer tends to be parallel to the wind direction; therefore, the stress of the display is reduced, and the overall installation stability of the display and equipment is ensured.

The invention discloses a wheelchair scale capable of data analysis and safety monitoring based on the Internet of Things. The wheelchair scale comprises a placing plate, wherein an elastic mechanism for applying elastic force to a wheelchair is arranged below the placing plate, the elastic mechanism comprises a lifting column, the lifting column is fixedly mounted on the lower surface of the placing plate, a bottom plate is movably mounted on the placing plate through the lifting column, a round limiting plate is fixedly installed below the lifting column, and the round limiting plate is attached to the lower surface of the bottom plate. Through movement of the lifting column, the distance between the placing plate and the bottom plate is changed, a third spring can deform, reverse elastic force is generated, the placing plate is made to move upwards, and after the placing plate is subjected to too large pressure, the stress of the placing plate can be relieved. When the device is used for detection, the pressure of the wheelchair can be relieved, the detection weight of the wheelchair can be improved, and meanwhile, when the device bears too large force above the force, internal original parts cannot be damaged.