64results about How to "Optimize the connection method" patented technology

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 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 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 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 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.

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.

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.

The utility model discloses a kind of electric power use buried PE electric power pipeline, belong to PE electric power pipeline technical field.The device includes pipeline, and the pipeline one end coaxial fixed sleeve is connected with elastic joint, the elastic joint includes the fixed part of being fixedly arranged around the side surface of pipeline, and the connecting part not directly connected with the end of pipeline, and the outside sleeve of pipeline is connected with the tightening member for fixed connecting part.The utility model in use, elastic joint contains fixed part and connecting part, when connecting, complex operation is not needed, staff only needs to drag auxiliary belt, can easily drive connecting part to separate from fixed part, without laboriously manual turning, and then use tightening member to tighten, it can be.Connecting part is designed to be stacked outside the fixed part, which reduces the transportation space occupation and allows the staff to quickly turn the connecting part to the adjacent pipeline side to complete the connection. This simple connection method shortens the pipeline laying time and reduces the construction cost.

The utility model discloses a light photovoltaic assembly and photovoltaic power generation equipment, and relates to the technical field of photovoltaic assemblies. The light photovoltaic module comprises a battery piece, a flexible welding strip, a conductive plate and a bus bar; a plurality of battery pieces are sequentially arranged along a first direction; the plurality of battery pieces arranged along the first direction form a group, and a plurality of groups of battery pieces are arranged along the second direction; the flexible welding strip is in welding connection with the first electrodes of the battery pieces arranged in the first direction; the current-conducting plate is sequentially connected with the second electrodes of the battery pieces arranged along the first direction in a welding manner; the bus bars are provided with a plurality of sections, each section of bus bar is correspondingly arranged between two adjacent groups of battery pieces, and the bus bars are respectively connected with the adjacent flexible welding strips and the current-conducting plates in a welding manner; according to the light photovoltaic module provided by the utility model, the battery pieces are grouped and connected in parallel, and then each group of battery pieces are connected in series and boosted, so that the circuit connection stability of each battery piece can be effectively ensured, and the overall use reliability of the light photovoltaic module is improved.

The industrial building based on the DFMA design method comprises a floor slab, a wall plate and hollow pipes arranged in the floor slab and the wall plate, pipelines can be arranged in the hollow pipes, and the ends of the hollow pipes extend to the side faces or the side edges of the floor slab and the wall plate and are perpendicular to the side faces or the side edges of the floor slab and the wall plate; a locking device is arranged between the ends of the adjacent hollow pipes and comprises a sliding locking pipe and a magnetic control assembly, the sliding locking pipe is connected to the inner walls of the hollow pipes in a sliding mode, and the magnetic control assembly can control the sliding locking pipe to move to the position between the adjacent hollow pipes so that the adjacent hollow pipes can be connected and locked through the sliding locking pipe. The magnetic control assembly can control the sliding locking pipe to completely move into one hollow pipe so that the floor slab and the wall plate can move in the direction perpendicular to the axis of the hollow pipe. The assembly process can be simplified, the workload of site construction is reduced, and the construction speed and safety are improved.

The invention provides a pressure node induction ground pump pipe lighting device capable of independently supplying energy, and relates to the technical field of concrete pumping, the pressure node induction ground pump pipe lighting device comprises a plurality of communicated pump pipe units, each pump pipe unit is provided with a pressure induction joint pipe, the interior of each pressure induction joint pipe is communicated with the interior of the corresponding pump pipe unit, and each pressure induction joint pipe is provided with an induction pressing piece; each pump pipe unit is provided with a power generation device, each power generation device comprises a gear set located in the corresponding pump pipe unit, each gear set is connected with a power generation motor, each power generation motor is connected with a storage battery, and each storage battery is electrically connected with the corresponding induction illuminating lamp. The device has the beneficial effects that design is reasonable, the structure is simple, safety and reliability are achieved, the pump pressure conditions of all pipelines can be monitored through the illumination pressure-sensitive device in the concrete pouring process under the condition that the pressure of the pump pipes is abnormal, the positions of the pump pipes with the abnormal pressure are recognized, and construction personnel can conveniently make adjustment in time.

The utility model discloses a planting structure top plate water storage flow guide device which comprises a water storage tank and a planting top plate, the planting top plate is arranged at the top end of the water storage tank, the four walls of the water storage tank are communicated with flow guide pipes, and connecting bases are fixedly installed at the positions, close to the two ends, of the left wall and the rear wall of the water storage tank. Connecting blocks are fixedly installed at the positions, close to the two ends, of the right wall and the front wall of the water storage tank, and clamping blocks are fixedly installed on the inner walls of the connecting bases. According to the water storage and flow guide device, the water storage tanks, the planting top plate, the flow guide pipes, the connecting bases, the clamping blocks, the fixing bolts and other parts are arranged and matched, the function of connecting the water storage tanks is achieved, the connecting mode of the water storage and flow guide devices in the prior art is improved, and therefore when the bolts are loosened or damaged, the water storage and flow guide devices can be connected conveniently. A plurality of water storage and flow guide devices are still kept connected, so that the normal use of the water storage and flow guide devices is ensured, and the practicability of the water storage and flow guide devices is improved.

The utility model relates to a kind of FID-SCD series detection device, belong to gas-liquid detection field.The device is fixed with hydrogen flame ionization detector and sulfur chemiluminescence detector on the same side by support, is connected by means of stopper and current limiter.The stopper is the "convex" cylinder, metal top plate is provided with central through-hole and air hole, FID nozzle is centrally installed;Current limiter uses the quartz or ceramic insulating tube with inner diameter ≤0.35mm, length 17.5cm±0.1, one end is connected SCD gas inlet, the other end passes through through-hole and FID nozzle maintains 9-10mm interval, outer surface is coated with polytetrafluoroethylene coating.Sample is separated after chromatographic column, FID completes hydrocarbon detection, sulfur combustion product passes through current limiter and enters SCD to realize sulfur content quantitative analysis.The utility model has the advantages that: carbon sulfur data can be obtained simultaneously by one sample, reduce interference, improve analysis efficiency, applicable to petrochemical, environmental monitoring and other fields.

The utility model belongs to the technical field of hemodialysis concentrated liquid supply, and discloses a hemodialysis concentrated liquid supply connecting device for a dialysis machine, which comprises an upper tool head and a tool body, the upper tool head is connected with the tool body through a fixing pin, and a hydraulic connecting device is arranged between the upper tool head and the tool body. Comprising a first clamp, a second clamp, an oil cavity box, a spring and a handle, through mutual cooperation of the spring, the oil cavity box and the handle, the second clamp is driven to move towards a tool head in a tool body, the distance between the first clamp and the second clamp is adjusted, and the silicone tube and the hemodialysis concentrated liquid supply three-way adapter are hydraulically fixed. According to the hemodialysis concentrated liquid supply connecting device for the dialysis machine, through cooperation of the hydraulic connecting device and the heat-seal connecting device, a convenient, rapid, firm and reliable connecting mode can be provided for the silicone tube and the hemodialysis concentrated liquid supply three-way adapter, meanwhile, the sealing performance is guaranteed, and good working conditions and treatment effects are provided for hemodialysis treatment.

The utility model relates to the technical field of guardrails for highway construction, in particular to a guardrail convenient to disassemble and assemble for highway construction, and aims to solve the technical problem that during highway construction, in order to guarantee normal traffic and personal safety of constructors, guardrails need to be additionally arranged on the periphery of a construction area, however, most guardrails for highway construction are inconvenient to disassemble and assemble. Most of connecting and fixing structures are relatively simple in arrangement, and operators often need to carry out disassembly and assembly operation by means of tools, so that more mounting time needs to be consumed, and the use flexibility of the guardrail is influenced; according to the technical scheme, the highway construction guardrail convenient to disassemble and assemble comprises a moving assembly, a supporting assembly, a lifting assembly, a connecting assembly and a disassembling and assembling assembly; compared with a traditional guardrail for highway construction which is inconvenient to disassemble and assemble and needs to consume certain operation time, the guardrail connecting mode is optimized, the disassembling and assembling operation steps are simplified, time consumed for disassembling and assembling the guardrail is saved, and the practical value of the guardrail is enhanced through a clamping connecting and fixing mode.

The underneath type double-guide-rail door machine comprises a door machine upper sill, a lift car and a door machine installation support, a door machine is assembled on the door machine installation support, the door machine upper sill is installed at the bottom of the lift car, the door machine installation support is connected with a C-shaped groove of the lift car, and the other side of the door machine installation support is connected with a reserved kidney-shaped hole of the door machine upper sill. A welded threaded hole is reserved in the door machine, a guide rail a and a guide rail b are assembled on the side wall of the door machine, a supporting mechanism is assembled on the side walls of the guide rail a and the guide rail b, a door sliding plate is assembled at the front end of the door machine, an upper door roller is assembled at the upper end of the door sliding plate, a lower door roller is assembled at the lower end of the door sliding plate, and the door sliding plate is installed on the door guide rail through an upper and lower door roller 1. Side rollers are mounted at the bottom of the door sliding plate; according to the underneath type double-guide-rail portal crane, the installation limitation of the portal crane is reduced, the special adjustable installation support is arranged at the bottom, and the assembling convenience of the portal crane is greatly improved.

The utility model belongs to a battery module pole piece structure in the technical field of power batteries. A plurality of fixing studs (2) are arranged on the upper surface of the pole piece body (1), a fool-proof notch (3) is formed in the side edge of the pole piece body (1), the lower surface of the pole piece body (1) is connected with a battery cell (4), the upper surface of the pole piece body (1) is connected with a series copper bar (5), and each fixing stud (2) on the upper surface of the pole piece body (1) is of a structure capable of penetrating through a positioning hole in the series copper bar (5). The battery module pole piece structure disclosed by the utility model is simple in structure, reliable positioning and connection of the pole piece and the series copper bar are realized, the contact area is increased, the overcurrent capability is enhanced, and reliable working performance of the battery module is ensured.