184results about How to "Optimize the connection method" patented technology

According to the closing resistor quality detection model building method, a closing resistor model is built based on electrical parameters and a geometric model of a closing resistor, and the electrical parameters of the closing resistor comprise the conductivity, the thermal expansion coefficient, the Young modulus, the density and the specific heat capacity. A closing resistor quality detection simulation numerical model is established based on the closing resistor model and the closing resistor electrical parameters, and the closing resistor quality detection simulation numerical model comprises an impact current waveform, a closing resistor temperature characteristic and a closing resistor stress characteristic which are arranged in sequence. And based on the impact current of the impact current waveform, injecting the impact current into the closing resistor quality detection simulation numerical model, and calculating a limit value of the impact current which can be borne by the closing resistor so as to simulate and optimize the closing resistor quality detection simulation numerical model.

A unit component combined type forest tree seedling supporting and protecting frame belongs to the field of forest tree seedling protection and is formed by combining unit components serving as basic units, each unit component comprises a positioning block, connecting blocks and a supporting rod, the two connecting blocks are correspondingly connected and installed at the two ends of the positioning block respectively, and the two connecting blocks and the positioning block form a continuous arc shape; the inner side arc face of the positioning block protrudes out of the inner side arc face of the connecting block, one end of the supporting rod is hinged to the outer side arc face of the positioning block, the other end of the supporting rod is hinged to a ground base plate, and a drill nail connecting hole is formed in the ground base plate. The supporting rods are unfolded to form a combined supporting structure, standardized unit components can be folded and stored to be in a regular structure state, integrated loading and transportation are facilitated, space is saved, cost is reduced, industrial popularization conditions are met, good production universality and process adaptability are achieved, healthy growth of forest seedlings can be guaranteed, and the afforestation survival rate is increased.

The invention relates to a seeding device for saffron crocus planting, and aims to realize an efficient, accurate and automatic seeding process, the device comprises a blanking plate, a plurality of seeding mechanisms and a conveying system, each seeding mechanism is provided with a guide hopper, a plurality of brackets, an upper roller and a lower roller, the rollers are in contact with a conveying belt, and the conveying belt is provided with planting sheets; the saffron crocus corm sowing device is used for bearing and conveying saffron crocus corms, the device drives the rolling wheels and the conveying belt to rotate synchronously through the motor, stable conveying and accurate sowing of the saffron crocus corms are achieved, automation and high efficiency of the sowing process are achieved, the sowing efficiency is remarkably improved, and the labor intensity of workers is reduced; through accurate corm positioning and conveying, the integrity of the bud ends of the corms is guaranteed, and the germination rate and the growth quality after planting are improved; a stable and reliable conveying system and an optimized soil treatment mechanism are adopted, so that the continuity of the seeding process and the uniformity of soil coverage are ensured.

The utility model discloses a center rotation type oil storage tank sludge cleaning reduction treatment device and a control system thereof. The center seat is arranged at the geometric center of the bottom of the oil storage tank; the rotating seat is rotationally mounted on the central seat through a rotating mechanism; the swing arm is hinged to the rotating seat through a deflection mechanism; the sludge suction filter head and the hydraulic jet head are arranged on the swing arm and pass through an area range between the central seat and the oil storage tank through deflection of the swing arm and rotation of the rotary seat; one ends of the pumping and draining header pipe and the spraying header pipe are positioned outside the oil storage tank, and the other ends of the pumping and draining header pipe and the spraying header pipe extend to the central seat and are respectively communicated with the sludge pumping filter head and the hydraulic spraying head through a sludge pumping pipe and a hydraulic spraying pipe. Compared with the prior art, the utility model has the beneficial effects that the built-in flushing and suction mode is adopted, so that sediments at the bottom can be effectively removed, and the full coverage of the bottom in the tank can be effectively ensured.

The invention provides a reconfigurable energy storage auxiliary thermal power generating unit frequency modulation system and a control method, the system comprises a reconfigurable energy storage system, a thermal power plant control system and a scheduling mechanism, and the reconfigurable energy storage system is in communication connection with the scheduling mechanism through the thermal power plant control system; the reconfigurable energy storage system comprises a reconfigurable battery network, a power conversion device and a coordination control module. One end of the reconfigurable battery network is connected with a power grid through the power conversion equipment, the other end of the reconfigurable battery network is in communication connection with the coordination control module, and the coordination control module is connected with the dispatching mechanism through the thermal power plant control system; according to the reconfigurable energy storage auxiliary thermal power generating unit frequency modulation system and the control method, the connection mode of all assemblies in an energy storage system can be optimized, balance among all battery packs can be improved, the SOC of the energy storage system and the SOC of all the battery packs can be kept at about 50% for a long time, and the response capacity of the energy storage system to AGC continuous up-regulation or continuous down-regulation instructions is improved.

The utility model discloses a throttling stop valve, and belongs to the technical field of stop valves. The valve rod is in transmission connection with the top of the valve body, the rotating wheel is fixedly connected with the top end of the valve rod, the connecting pipes are communicated with the two sides of the valve body, a positioning structure is arranged on the surface of the valve body and comprises a connecting block arranged on the top of the valve body, and the connecting block is fixedly connected with the valve body. The push block is extruded through the transmission structure, the push block slides on the surface of the valve rod and extrudes the extension rod, the extension rod is extruded and drives the pressing rod to swing with the pin shaft in the connecting block as the axis, and when the side, away from the connecting block, of the pressing rod makes contact with the surface of the connecting pipe, the effect that the connecting pipe is extruded, installed and connected is achieved; according to the stop valve, the connection mode of an existing stop valve can be improved, connection through a thread assembly is replaced, the operation step that extrusion needs to be conducted through a plurality of thread assemblies in the installation process is omitted, and the phenomenon that the axis of the stop valve deviates is prevented.

The utility model provides a testing device for a train brake pad friction block texture structure, belongs to the technical field of brake pad friction blocks, and aims to solve the stick-slip vibration phenomenon occurring when a high-speed train is braked. In the prior art, a large number of tests and debugging are needed and wide popularization is difficult to realize when the stick-slip vibration is inhibited by integrally changing the property of a friction block or installing a viscoelastic damper and the like. In the utility model, different textures are designed on the surface of the brake pad friction block; the surface texture design based on the friction blocks is adopted to restrain the stick-slip vibration phenomenon of the train braking system, the method is a method for actively restraining the stick-slip vibration from the source, the structure of the braking system does not need to be modified or increased or decreased, and therefore the operation and maintenance cost of a train is not increased, and popularization is easier to achieve.

The application relates to the technical field of putty powder production equipment, and discloses a screening device, which comprises a screening shell, a discharge pipe arranged on the side wall of the screening shell, a discharging piece detachably connected to the discharge pipe, a connecting assembly for connecting the discharging piece and the discharge pipe, a connecting ring arranged on the outer wall of the discharge pipe, a first ring body sleeved on the outer wall of the discharge pipe, a second ring body and a positioning piece for connecting the second ring body to the connecting ring, the first ring body being located in the inner cavity of the second ring body, the second ring body being provided with an abutting edge for abutting against the lower end of the first ring body, and the upper end of the discharging piece penetrating through the first ring body and being clamped between the first ring body and the second ring body. The application has the effects of stable connection and convenient disassembly.

The high-stability core tube comprises a first tube body and a second tube body arranged at the top of the first tube body, a supporting structure is arranged at the top of the first tube body, and a transmission structure located on the inner side of the supporting structure is arranged in the first tube body. The supporting structure comprises connecting blocks fixedly connected to the periphery of the inner wall of the first barrel, and the inner sides of the connecting blocks are movably connected with pressing plates through pin shafts. The extension plate is extruded through the transmission structure, the pressing plate connected with the extension plate is extruded and swings with the pin shaft on the surface of the connecting block as the axis, and when the outer surface of the pressing plate makes contact with the inner wall of the second barrel, the effect of supporting and positioning the second barrel is achieved. The eccentric phenomenon of the core tube installed through the connecting piece in the installation process is prevented, the connecting stability of the core tube is prevented from being affected, and collapse is avoided.

The application discloses a high-pressure sealed electronic oil pump convenient to install and a method, which comprises an electronic oil pump body, a connecting pipe joint inserted into the top of the electronic oil pump body, and a positioning structure arranged on the top of the electronic oil pump body and located on the inner side of the connecting pipe joint. The connecting pipe joint is inserted into the top of the electronic oil pump body, and the connecting pipe joint needs to be located on the inner side of the supporting plate. Then, a user pushes a transmission plate, the transmission plate is extruded and drives a clamping plate to rotate around the pin shaft on the surface of the connecting block. When the outer side of the clamping plate is in contact with the surface of the connecting pipe joint and the connecting pipe joint is tightly extruded on the surface of the supporting plate, the effect of stably installing and fixing the connecting pipe joint is achieved. The application can improve the connection mode of the existing electronic oil pump and the hose, and assists in connecting through the plug-in mode, prevents the hose from being loosened due to vibration, and avoids oil leakage.

The invention discloses an improved device for preventing deformation of shield steel sleeve, including steel sleeve, force transmission frame, connecting cylinder, back cover and reaction frame, the steel sleeve is formed by connecting multiple sections of supporting cylinder in series, the supporting cylinder is welded by upper cylinder and lower cylinder, three-pronged support frame is arranged at both end faces of upper cylinder, and two upper and lower three-pronged support frames constitute the force transmission frame; 90° flange plate is arranged on the outer side of steel sleeve, flange structure is arranged on the end face, grid-shaped reinforcement strip is welded on arc surface, lifting ear and filling hole are arranged on the upper cylinder, and discharge hole, top push pulley and pressure plate are arranged on the lower cylinder; the back cover is sealed and sleeved with steel sleeve by bolts and full welding around, and 3*3 square steel grid, steel column and six diagonal bracing rods and anchoring steel plate are welded on the outer side of back cover in sequence. The invention solves the problem of excessive deformation of shield steel sleeve in special site conditions, and improves the service time and safety of steel sleeve; the invention discloses the installation and reinforcement method of steel sleeve during shield construction, and provides a specific feasible scheme for preventing deformation of steel sleeve.

The invention relates to the technical field of capacitors, in particular to a three-core parallel capacitor which comprises an upper core, a middle core, a lower core and a leading-out plate, the upper core, the middle core and the lower core are sequentially arranged from top to bottom, the adjacent ends of the upper core, the middle core and the lower core are the same poles, the leading-out plate is arranged above the upper core, and the leading-out plate is arranged above the middle core. The lead-out plate is provided with a first electrode terminal and a second electrode terminal, the first electrode terminal is connected with a first polar band, a second polar band and a third polar band, and the second electrode terminal is connected with a fourth polar band and a fifth polar band. According to the three-core parallel capacitor provided by the invention, a traditional connection mode is improved, the use number of copper strips is reduced, and passbands are uniformly distributed on the side parts of the cores, so that the heat dissipation condition inside and outside the capacitor can be effectively improved, the temperature difference of the three cores is reduced, the performance of the capacitor can be fully exerted, and the service life of the capacitor is prolonged. The service life of the capacitor is prolonged.

The utility model relates to an integral abutment device suitable for a cold-bending curled U-shaped steel composite beam. At present, separated bridge abutments and semi-integral bridge abutments are complex in structure and tedious in construction, bridge heads are prone to damage, and durability is poor. The U-shaped cross-section cold-bending edge-curling concrete bridge comprises a cold-bending edge-curling U-shaped cross-section steel beam, a concrete bridge deck slab and an integral bridge abutment, the upper flange of the cold-bending curled-edge U-shaped-section steel beam is fixedly connected with the concrete bridge deck, the two ends of the cold-bending curled-edge U-shaped-section steel beam are embedded into the integral bridge abutment, and longitudinal load-bearing steel bars are arranged in the concrete bridge deck. Holes are formed in the two webs, close to the side of the integral bridge abutment, of the cold-bending curled-edge U-shaped-section steel beam respectively, and transverse penetrating steel bars are arranged in the holes. According to the utility model, the construction speed and the industrialization degree are improved, the bending and shearing resistance of the small and medium span beam bridge is enhanced, and the stability and durability of the beam body are improved.

The utility model belongs to the technical field of household appliances, and particularly relates to a heating pump for a dish washing machine. The heating pump of the dish-washing machine comprises a pump shell and a pump cover, the pump cover is connected with the pump shell, the pump cover comprises a cover body in a circular plate shape, a connecting hole is formed in the center of the cover body, an annular protrusion is arranged on the lower surface of the cover body, the heating pump of the dish-washing machine further comprises an electric heating pipe, and the electric heating pipe is embedded in the annular protrusion. The structure of the heating pump of the dish-washing machine is improved, specifically, the pump cover is improved, the electric heating pipe and the pump cover are integrally formed, and the annular protrusion is located below the pump cover, so that the heating area is increased, and better heat efficiency is achieved.

The present application discloses a strain tower, comprising a tower body, and at least one composite crossarm assembly. The at least one composite crossarm assembly is fixedly connected to the tower body. The composite crossarm assembly comprises: at least one composite post insulator and a link fitting. The link fitting comprises an end link fitting and a wire connecting portion. The composite post insulator is fixedly connected to the end link fitting. The wire connecting portion comprises wire hanging plates and a jumper connecting piece. By providing a jumper connecting piece on the end link fitting, a jumper can be directly hung at the end of the composite crossarm, thereby omitting a jumper insulator, simplifying the composite crossarm structure, reducing the structural weight of the end of the composite crossarm, and improving the economic efficiency.

The utility model relates to the technical field of insulation connection, in particular to an insulation connection mode of an SMA patch cord and a metal casing, which comprises a metal casing body, positioning holes, a hard plastic sheet and a locking screw, the left side and the right side of the metal casing body are uniformly provided with the positioning holes, and the hard plastic sheet is provided with the locking screw. The left end of the upper side of the metal casing body is fixedly provided with a hard plastic sheet, the hard plastic sheet and the metal casing body are pressed tightly through a nut, the left end of the metal casing body is fixedly provided with a locking screw, the threaded end of the SMA conversion line penetrates through an installation hole of the hard plastic sheet, the hard plastic sheet is provided with a D-shaped hole, and the D-shaped hole is communicated with the locking screw. The metal casing body is matched with the shape of the thread part of the SMA conversion line to play a role in insulation and prevent the SMA conversion line from rotating, the positioning hole is formed in the upper side of the metal casing body to prevent the metal casing body from being in contact with an SMA head, interference of clutters outside the casing on communication signals can be isolated, interference of clutters outside the metal casing body can be isolated, electrostatic protection capability can be improved, and product performance can be improved.

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle emergency lighting device which comprises a vehicle body, a shell, a camera fixedly connected to the surface of the shell, a propeller frame arranged on the surface of the shell, a supporting rod fixedly connected to the surface of the shell, and a lighting mechanism comprising a lighting instrument and a second connecting block. The second connecting block is connected to the surface of the shell in an inserted mode, a first connecting block is fixedly connected to the surface of the illuminator, a connecting spring is fixedly connected to the surface of the first connecting block, and a fixing spring is fixedly connected to the surface of the second connecting block. The first connecting block is connected with the connecting rod, the spring sleeve is connected with the fixing spring, the groove in the middle of the second connecting block is fixed to the propeller arm of the shell, the first connecting block and the second connecting block are fixed in an inserted mode, the illuminator is fixed to the shell, and the illuminator cannot shake in the flying process of the unmanned aerial vehicle.

The utility model discloses a battery system series base and a lithium ion battery pack, the battery system series base comprises: a base provided with an insert mounting hole for mounting a series row; and the base upper cover is connected with the base, and the base upper cover and the base form an accommodating space for accommodating the series row. According to the utility model, the structure and the connection mode of the series connection base of the battery system are optimized, the connection adaptability of the series connection row is improved, and the problem of material consumption caused by the material supply problem of the module box or the abnormal insert in the assembling process of the battery system and the misoperation in the transferring process is solved.

This utility model relates to the field of stone cutting equipment, and more particularly to a stone cutting machine, including a machine column, a lifting device, and a cutting device. The upper end of the machine column has a mounting position, and locking seats are provided on both sides of the mounting position. The bottom of the cutting device has mounting legs corresponding to the mounting position on the machine column. The mounting legs are locked to the mounting position, and the sides of the mounting legs are opposite to the locking seats, and are secured by locking bolts on the locking seats. The lifting device is located below the cutting device. The mounting position and locking seats on the machine column enable rapid positioning of the cutting device during assembly. The locking connection between the mounting legs and the opposite parts of the mounting position, combined with the lateral limiting and fixing of the locking seats on the sides, improves the connection between the cutting device and the machine column, achieving stable assembly and adjustment.

The utility model relates to the technical field of intelligent furniture, in particular to an indoor intelligent thermostat, which comprises a fixed seat and a control module for controlling an execution module, the fixed seat is fixed on a wall surface, a socket is arranged in the fixed seat, the control module is fixed in the socket, the control module comprises an intelligent touch screen device, and the intelligent touch screen device is arranged on the fixed seat. One side of the intelligent touch screen device is provided with a power supply sheet in contact with the wire assembly, and a spring is fixed between the intelligent touch screen device and the power supply sheet. When the intelligent touch screen device is used, the socket is arranged on the fixed seat, the spring is arranged on one side of the intelligent touch screen device, and the control module can be detached from the fixed seat in a manner of pressing and rotating the control module after the control module is clamped and fixed in the socket by utilizing the elasticity of the spring, so that maintenance personnel can conveniently carry out maintenance; the power supply piece is arranged on one side of the intelligent touch screen device, the power supply piece makes contact with the electric wire assembly through the elastic force of the spring, and therefore the connection mode of the control module and the electric wire is optimized.

The utility model relates to a metal roof structure with high waterproofness. Comprising a ridge cover plate, a vertical lockrand metal roofing board, a metal plug and rivets, the side projection of the ridge cover plate is in a herringbone shape, the ridge cover plate is arranged above the vertical lockrand metal roofing board, and flanges on the two sides of the ridge cover plate are folded inwards and located on the inner side of the vertical lockrand metal roofing board. The ridge cover plate and the vertical lockrand metal roof plate are connected through rivets which penetrate through the flanges on the two sides of the ridge cover plate and the vertical lockrand metal roof plate at the same time, and through holes formed by the rivets are covered with metal plugs. Adjacent metal ridge cover plates are connected and fixed through hooking, the problem that water leakage hidden dangers are prone to occurring due to the fact that traditional metal ridge cover plates are fixed through rivets in a lap joint mode is solved, meanwhile, the connecting mode of the metal ridge cover plates and the vertical lockrand roof panels is optimized, connecting points are hidden below the ridge cover plates, and therefore the metal ridge cover plates and the vertical lockrand roof panels are fixed. And the leakage risk of the connection point is reduced to a great extent.

A portable instant hot water machine, comprising: a barrel shell, and a control center, a water pump, an electric heating device, a water inlet movable seat and a water outlet handle arranged in the barrel shell; the barrel shell is in the form of a vertically extending cylindrical shell structure; the water outlet handle is movably arranged above the barrel shell, and the water inlet movable seat is movably arranged below the barrel shell; a cup-shaped top cover is detachably arranged at the top of the barrel shell; the top cover and the top of the barrel shell form a top accommodating cavity; the top accommodating cavity is used for placing a brewing tool; and the brewing tool is detachably mounted on the water outlet of the water outlet handle. The utility model, on the basis of keeping the core function of the portable instant hot water, successfully integrates the drinking utensil storage function through the unique top accommodating cavity design, completely solves the core problem of the drinking utensil separation carrying and the inconvenience in use in the prior art, realizes the truly meaningful and complete portable drinking water solution, and greatly improves the practicability and user satisfaction of the product.

An electric toothbrush with a toothbrush head replacement reminder function includes a battery, a switch and a replacement reminder mechanism, the replacement reminder mechanism includes a ratchet, a conductive block and an indicator, one pin of the indicator is connected to the first pole of the battery, the conductive block is connected to the second pole of the battery, a switch is provided on the host, an active ratchet is provided on the switch to push the ratchet to rotate a set angle after each opening, the conductive block is set to rotate with the ratchet, and after rotating to a set position, it is connected to another pin of the indicator to form a path between the indicator and the battery, and the indicator is activated. The electric toothbrush with a toothbrush head replacement reminder function can remind the user to replace the toothbrush head through a purely mechanical counting method, reduce the design cost of electronic components, and extend the battery life.

The application discloses a face-centered cubic (FCC) based vertical-horizontal mixed enhanced selective laser melting dot array structure and a preparation method thereof. The method starts from a basic FCC dot array unit, first forms a transition dot array structure FCC-H (FCC- Horizontal) with in-plane enhancement through the intersection of inclined main rods and auxiliary rods perpendicular to the main rods, further constructs a continuous bridging grid by optimizing the connection mode and diameter ratio of the rods, and finally obtains the FCC-VH (FCC-Vertical Horizontal) dot array structure with vertical-horizontal mixed enhancement. Through the synergistic effect of the inclined main rods and the auxiliary rods perpendicular to the main rods, the structure significantly improves the compressive strength, specific stiffness, specific strength and specific energy absorption while maintaining lightweight. In the experiment, 316L stainless steel powder is used to prepare the FCC-VH dot array structure through selective laser melting technology (SLM), and the compression deformation mode of the FCC-VH dot array structure is changed from local buckling of the basic FCC to multi-node cooperative bearing, so that the overall compression performance is more significantly improved.

The invention relates to the technical field of air compressors, in particular to an integrated oil-gas separation and cooling air compressor which comprises a base, an oil-gas cooler arranged at the upper end of the base, an oil-gas separation tank, an air compressor body and a filter mounting seat. The air compressor body is provided with an air inlet, an oil liquid inlet and an oil gas output port. The oil-gas cooler is fixedly provided with an oil-gas outlet and an oil-gas inlet; an oil-gas input port, an oil liquid output port and a compressed air output port are fixedly formed in the oil-gas separation tank; an oil-gas filter and an oil liquid filter are further arranged at the upper end of the filter mounting seat, a driving motor is fixedly connected to the upper end of the oil-gas separation tank, an air compressor body is further arranged on the oil-gas separation tank, the output end of the driving motor is fixedly connected with the air compressor body, and an oil-gas output port is connected with an oil-gas input port; the oil liquid output port is communicated with the oil-gas inlet, and the oil-gas outlet is communicated with the oil liquid inlet through the filter mounting seat.

The utility model discloses a spring steel plate structure for a gate, which relates to the technical field of steel plates, and comprises a steel plate body, an embedded column, an embedded groove and a fastening component, one side of the steel plate body is fixedly provided with the embedded column, one side of the steel plate body is fixedly provided with the embedded groove, the fastening component is arranged at the joint of the embedded column and the embedded groove, and the embedded column is fixedly provided with the embedded groove. And the arranged fastening assembly has a fixed connection effect. According to the spring steel plate structure for the gate, through the arrangement of the embedded columns and the embedded grooves and the design of the positioning rotating blocks and the fastening inserting blocks, the connecting process is more convenient, the rapid, simple and convenient connecting mode is achieved, and the mounting efficiency is improved. And meanwhile, the connection stability is further enhanced through the arrangement of the fastening assembly, and looseness or deformation caused by water flow impact in the use process of the gate is effectively prevented. In addition, due to the arrangement of the water stop sealing rubber strip and the waterproof plate, the sealing performance of the gate structure is improved, and leakage of water flow is effectively prevented.

A raised dust treatment device for constructional engineering comprises a fan and a filter element communicated to the front face of the fan, a positioning structure located on the outer side of the filter element is arranged on the front face of the fan, a transmission structure located on the inner side of the positioning structure is arranged on the front face of a machine body, and the positioning structure is movably connected to clamping jaws on the two sides of the front face of the fan through pin shafts. The side, away from the fan, of the clamping jaw extends to the outer side of the filter element, the top of the clamping jaw is fixedly connected with a sleeve plate, the transmission structure can drive the sleeve plate to swing, and the transmission structure comprises a gear movably connected to the front face of the fan through a bearing. The clamping jaw is driven by the transmission structure to swing, so that the clamping jaw is sleeved on the surface of the filter element, the effect of fixing the filter element is achieved, the existing connection mode of the filter element and the dust raising device can be improved, the insertion connection mode is assisted, the filter element is prevented from being easily influenced by air flow impact after being installed, and the dust raising device is convenient to use. And the falling phenomenon is avoided.

The utility model discloses a steel beam connecting node, and belongs to the technical field of steel beam connecting nodes. The device comprises a stand column and steel beam structures placed on the two sides of the top of the stand column, a supporting structure is arranged at the top of the stand column, a transmission structure located on the inner side of the supporting structure is arranged at the top of the stand column, the supporting structure comprises a connecting block arranged at the top of the stand column, and the connecting block is fixedly connected with the stand column. The surface of the steel beam structure is sleeved with a supporting ring, and the inner side of the connecting block is movably connected with a supporting plate through a pin shaft. The supporting plate is driven by the transmission structure to swing with the pin shaft in the connecting block as the axis, when the outer surface of the supporting plate makes contact with the surface of the supporting ring, the effect of lifting, supporting and positioning the supporting ring is achieved, the connecting mode of an existing steel beam connecting node can be improved, and the connecting efficiency is improved. A threaded assembly or welding mode is replaced for fixing, the situation that the steel beam connecting joint lacks the supporting effect after being installed is prevented, and the phenomenon that the steel beam connecting joint falls down is avoided.

The utility model relates to a paper injection water needle traction structure which is used for pulling a water needle to reciprocate and comprises a water needle base for fixing the water needle, pulley blocks arranged on one side of the water needle base in parallel, a double-sided track arranged between the pulley blocks in a sliding mode, and a driving wheel and a return wheel which are arranged at the two ends of the double-sided track respectively. The conveyor belt is arranged between the driving wheel and the return wheel; wherein one end of the conveying belt is fixedly connected with the water needle base located on one side of the double-sided track, and the other end of the conveying belt sequentially bypasses the driving wheel, the other side of the double-sided track and the return wheel and is fixedly connected with the water needle base located on the same side of the double-sided track. Compared with the prior art, chain transmission is changed into synchronous belt transmission, so that the stability of reciprocating motion and the accuracy of a reset function are enhanced.

The utility model relates to an aircraft lavatory lighting control switch, the switch includes base, support, elastic sheet, switch and cable, the base is used for with aircraft lavatory superior component connection, the support is located the top of base and is connected with it, the elastic sheet is installed in the one end of support far from the base, the switch is fixed on the support and is matched with the elastic sheet, one end of cable connects the switch, the other end connects aircraft lavatory light system, when aircraft lavatory door closes, the elastic sheet is pressed switch and changes its state to control the lighting light to open, the utility model has the advantages of simple structure, easy assembly, spare parts easy to get and low cost, can control aircraft lavatory inside lighting safely and effectively.