154results about How to "Reduce depth" patented technology

The invention provides a pattern multi-row matching method and device for ATE equipment, and the method comprises the steps: determining a cyclic pattern sequence comprising a plurality of rows of target patterns based on the number of matched rows when a first to-be-tested pattern carrying a LOOPMATCH instruction is recognized after a test is started; lOOPMATCH circulation is executed on the basis of the circulation Pattern sequence, and in each LOOPMATCH circulation, the Pattern matching result of the target Pattern in each row is determined; when all Pattern matching results pass in one cycle, jumping out of the LOOPMATCH cycle and determining that the cycle Pattern sequence test passes, otherwise, continuing to circulate to the maximum cycle number and then determining that the cycle Pattern sequence test does not pass; according to the technical scheme of the embodiment of the invention, when the first to-be-tested Pattern carrying the LOOPMATCH instruction is detected, multiple rows of target Patterns are constructed for loop testing, and LOOPMATCH loop is jumped out after any complete matching succeeds, so that the depth of the Pattern sequence can be effectively reduced, multi-row synchronous multi-time level matching is realized, the test resource overhead is reduced, and the test efficiency is improved.

The invention relates to the field of track assemblies and components thereof, and discloses a benthic track assembly and a seabed operation robot, the benthic track assembly comprises a carrying platform and track assemblies symmetrically arranged on the two sides of the carrying platform, each track assembly comprises a rack, a driving wheel, an inducer, a first driven wheel and a track body, and rotation of the driving wheel is controlled by a driving motor; an overturning driving mechanism capable of driving the inducer to overturn up and down is arranged on the rack, second driven wheels in running fit with the inner ring of the track body are arranged on the two sides of the inducer, the overturning driving mechanism is matched with a visual detection system, and the visual detection system detects whether an obstacle exists or not. A command is sent to a driving motor to drive a turnover driving mechanism to act so as to drive an inducer to turn over, a mechanical claw assembly is arranged on a second driven wheel in a telescopic mode, and when the inducer turns over to the lowest position, the mechanical claw assembly can stretch out to assist the submarine robot to move. And the moving efficiency can be effectively improved.

The invention discloses a quantum state amplitude coding method and device, equipment and a medium. The method comprises the following steps: carrying out normalization processing on a real vector to be coded; setting a Hamiltonian, wherein the Hamiltonian is a negative value of an outer product of the normalized real vector to be coded and the Hamiltonian; constructing a variable component sub-line according to the normalized real vector to be coded; substituting a preset parameter value as a training parameter into the variable component sub-line so as to output a training quantum state evolved by the variable component sub-line; measuring an expected value of the training quantum state, which is evolved by the variable component sub-line, about the Hamiltonian; training the training parameters of the variable component sub-lines through a classical optimizer; in response to convergence of the training parameter or the expected value to a set threshold value, determining the training quantum state evolved by the variable component sub-line as a target quantum state; wherein the normalized real vector to be coded is mapped to the amplitude of the target quantum state. According to the invention, the execution efficiency of amplitude coding can be further improved.

The invention discloses a quantum state preparation method and device, equipment and a medium. The method comprises the following steps: setting a target quantum state to be prepared; setting a Hamiltonian, wherein the Hamiltonian is a negative value of an outer product of a left vector and a right vector of the target quantum state; constructing a variable component sub-line including training parameters according to the target quantum state; substituting a preset parameter value as a training parameter into the variable component sub-line so as to output a training quantum state evolved by the variable component sub-line; measuring an expected value of the training quantum state, which is evolved by the variable component sub-line, about the Hamiltonian; training a training parameter of the variable component sub-line through a classical optimizer until the training parameter or an expected value is converged to a set threshold value; comparing the training parameter or the expected value with a set threshold value; and outputting the training quantum state evolved by the variable component sub-line under the convergence condition as a to-be-prepared target quantum state. The preparation of any quantum state can be efficiently and accurately realized.

The utility model belongs to the technical field of carbon molecular sieve production equipment, and discloses a flower mud material crushing conveyor line which comprises crushing equipment, a bottom belt conveyor, an inclined lifting belt conveyor and a vibrating screen, a sunken main pit is formed in the workshop ground of a flower mud crushing station, the crushing equipment is installed in the main pit, and the inclined lifting belt conveyor is installed in the main pit. A feeding hopper of the crushing equipment is removed towards the outer side wall, and the bottom of the feeding hopper is connected through a horizontal steel plate, extends and is connected to the workshop ground in a lap joint mode. The bottom belt conveyor is horizontally connected below a discharge port of the crushing equipment, the bottom end of the inclined lifting belt conveyor is connected at the discharge end of the bottom belt conveyor, and the high end of the inclined lifting belt conveyor inputs crushed flower mud materials to a feed port of the vibrating screen. According to the flower mud material crushing conveying line, crushing equipment is installed in a pit mode, the feeding difficulty is lowered, and the operation safety is improved.

The invention discloses a connecting joint for vertical steel bars of a prefabricated panel by adopting UHPFRC (Ultra High Performance Fiber Reinforced Concrete) lap joint, and belongs to the technical field of building structures. The connecting joint comprises a first prefabricated wall panel and a second prefabricated wall panel, wherein the first prefabricated wall panel comprises a connecting hole and a first connecting steel bar; the second prefabricated wallboard comprises second connecting steel bars, the first connecting steel bars and the second connecting steel bars are arranged in the connecting holes at intervals, and UHPFRC is poured into the connecting holes. The connecting holes are formed in the horizontal joints of the bottoms or the tops of the prefabricated wall panels, the connecting steel bars are arranged in the connecting holes, the connecting steel bars extending out of the prefabricated wall bodies adjacent to the horizontal joints are in single-row or double-row lap joint in the connecting holes by pouring the UHPFRC, and therefore formworks and sleeves / casing pipes are omitted, and the construction cost is reduced. The construction technology of vertical steel bar connection in the fabricated shear wall is obviously simplified, and the connection cost is reduced.

The invention discloses a quantum state preparation method and device for any real vector, a medium and equipment, and relates to the technical field of quantum computing, and the quantum state preparation method for any real vector comprises the steps: carrying out the normalization processing of a to-be-coded first real vector; judging whether a positive integer n which satisfies 2n = N exists or not; if it is determined that no positive integer n satisfies 2n = N, the value of the positive integer n is determined, so that the positive integer n satisfies a condition 2n-1lt; nlt; 2n; expanding the first real vector based on the values of the positive integers n and N to obtain a second real vector; constructing a quantum circuit based on the second real vector; executing a quantum circuit, and performing quantum state coding on the second real vector to obtain an initial quantum state coding result; and obtaining the quantum state coding result of the first real vector based on the initial quantum state coding result, thereby improving efficiency and accuracy.

A high-efficiency tunneling method for straight-line slotting of empty holes in large-section tunnels comprises the following steps: firstly determining the surrounding rock grade and blasting excavation footage, and determining the blasting cycle footage according to the surrounding rock grade and referring to the design specification; calculating various blasting parameters, and calculating various blasting parameters according to the types of blasting equipment, explosive parameters, rock parameters, tunnel excavation cross-sectional area, and cycle footage; preparing blasting design, and making good blasting technical and safety disclosures; completing drilling of different types of blastholes at various locations; organizing personnel to clean and inspect different types of blastholes at various locations; charging and filling, and detonating, completing charging and filling of different types of blastholes at various locations, laying out in-hole detonating caps and outside-hole connecting detonators according to the blasting parameter table, and detonating according to the blasting process; ventilating and discharging, and then measuring the tunnel blasting cycle footage and over-excavation and under-excavation, and adjusting the next cycle blasting plan according to the current blasting effect and surrounding rock conditions.

The invention discloses a multi-exposure image fusion method based on a depth separable Transform and a CNN cascade network. According to the method, a weight sequence obtained through channel self-attention calculation is used for making up for the potential loss of a synergistic effect between channels. Wherein the learnable weighted summation process for obtaining the weight sequence is beneficial to strengthening the interaction between input feature channels, and provides guidance information for adaptively adjusting the information importance degree of different channels. In the feature extraction module, the model can effectively reuse features and reduce the depth and parameter quantity of the network through the form of a dense connection network and the design of a deep coupled convolution block and a Transform block. According to the method, the calculation amount is greatly reduced, and meanwhile, the weight sequence obtained by channel self-attention calculation is utilized to make up for the potential loss of the synergistic effect between channels, so that the model can effectively reuse the features, and the network depth and the parameter amount are reduced. The method provided by the invention is superior to an existing advanced algorithm in visual performance and fusion speed, and an efficient and effective solution is provided for the field of multi-exposure image fusion.

The invention provides an approximate quantum amplitude coding model based on a parameterized quantum circuit, which belongs to the technical field of artificial intelligence and comprises an analog quantum circuit and an implementation quantum circuit. The analog quantum circuit is composed of multiple layers, the number of the multiple layers is limited by the number of quantum bits, the analog quantum circuit is expressed through unitary transformation, and construction of the quantum circuit based on optimized unitary operators obtained in the analog quantum circuit is achieved; the analog quantum circuit is used for converting a pre-calculated amplitude coding quantum state into a fixed quantum state with the maximum fidelity; the implementation quantum circuit is used to encode a fixed quantum state into an approximate representation of an amplitude encoded quantum state through a conjugate transpose transform of the optimized analog quantum circuit. Through the approximate representation of the amplitude coding quantum state, the approximate quantum amplitude coding model significantly reduces the circuit depth of a quantum state preparation circuit and the complexity of a quantum gate, and improves the feasibility of implementation in large-scale quantum equipment with noise and the like.

The utility model provides a whole paving device for auxiliary precast blocks of a side slope roadbed. The whole paving device comprises grooving equipment and paving equipment, the grooving equipment comprises a first frame body capable of walking and a grooving mechanism arranged on the first frame body, and the grooving mechanism is used for machining a groove in a slope surface; the laying equipment comprises a second frame body capable of walking and a laying mechanism arranged on the second frame body, and the laying mechanism is used for laying the prefabricated part in the groove; the first frame body and the second frame body are connected through a connecting piece, and when external power equipment drags the first frame body to walk on a slope, after the grooving mechanism machines a groove, the laying mechanism lays a prefabricated part in the groove. When the first frame body is dragged by external power equipment to walk on the slope surface, the grooving equipment machines a groove in the slope surface, and meanwhile, the laying mechanism lays a prefabricated part in the groove machined by the grooving mechanism, so that slope grooving and prefabricated block laying are conducted at the same time, the labor intensity of workers is relieved, and the construction efficiency is improved.

The invention belongs to the technical field of water environment monitoring, and relates to a deep water sampling device and method, and the device comprises a bottle body, a piston piece, a linear reciprocating motion assembly, and at least three pressure regulating valves. The piston piece is arranged in the bottle body, the power output end of the linear reciprocating motion assembly is connected with the piston piece, and at least three openings are formed in the circumferential direction of the bottle body. The pressure regulating valves are respectively arranged in the corresponding openings, each pressure regulating valve is provided with a pressure bearing part and a flow regulating part, the pressure bearing part is connected with the corresponding flow regulating part, the pressure bearing part is used for bearing water pressure around the bottle body, the flow regulating parts are arranged in the openings, and the flow regulating parts are used for regulating the sizes of the openings. When the bottle body is lowered, the linear reciprocating motion assembly drives the piston piece to move upwards, water enters the opening from the opening, and when the water pressure borne by the pressure bearing part is increased, the flow adjusting part adjusts the corresponding opening to be enlarged, so that the pressure borne by the periphery of the bottle body is balanced, and the inclination degree of the bottle body is reduced.

The invention belongs to the field of coal-fired power generation, and particularly relates to a heat supply and power generation system for improving the flexibility of a thermoelectric load by coupling molten salt heat storage and an operation method, the system is additionally provided with a heat supply network heating system on the basis of a conventional coal-fired power generation system, and is coupled with an innovative heat storage system adopting a collaborative heat storage and collaborative heat release structure. When the power supply load of the coupling heat supply power generation system is reduced, reheated steam and redundant electric power which is not connected to the network are used for heating molten salt for collaborative heat storage, meanwhile, reheated cold section extraction steam is used for supplying heat to a heat supply network, the load reduction rate is increased, the downward peak regulation depth of the coupling heat supply power generation system can be effectively reduced, and the power supply efficiency is improved. And zero power output of the power generation system can be realized under the condition that the boiler maintains the lowest operation load. The thermoelectric load characteristic interval range of the coupling heat supply power generation system is remarkably expanded, the variable load rate of the coupling heat supply power generation system is improved, and the heat supply and power supply flexibility of the coupling heat supply power generation system is improved.

The invention discloses a construction method of a fish detection model based on deep learning and a fish detection method and system, a residual network ResNet is used as a main network structure of the fish detection model, and the residual network ResNet has a strong feature extraction capability and can capture features such as basic forms and textures of fishes; then a mixed attention mechanism is introduced to extract more effective feature quantities, a mixed attention module is connected behind each residual block of the residual network ResNet, key features can be further extracted and emphasized, and therefore a better effect is achieved on the residual network ResNet; the mixed attention is combined with an attention mechanism of two dimensions of channel attention of GRA and space attention based on CBP, the model can more comprehensively capture feature information of fish, algorithm complexity is effectively reduced, hardware requirements of actual deployment are further reduced, the requirements for depth and different level widths of a deep learning algorithm are reduced, and the method is suitable for being popularized and applied. And the purpose of algorithm weight reduction is achieved.

The utility model provides a battery monomer, a battery and electric equipment. The battery monomer comprises a shell; the shell comprises a first wall part, the first wall part is provided with a first groove, the first groove is sunken from a first surface in the thickness direction of the first wall part to a direction close to a second surface, the first groove defines at least one preset pressure relief area, and the first wall part is configured to be capable of cracking along at least part of the first groove when the battery monomer is subjected to pressure relief; wherein the sum S1 of the areas of all the preset pressure relief areas is 0.03-0.3 time of the area S2 of the first surface, so that the risks of burst, explosion, fire and the like of the shell of the battery monomer caused by untimely pressure relief of the first wall part can be reduced; and the risk of liquid leakage caused by phenomena such as advanced actuation or fatigue cracking of the first wall part after the battery monomer is used for a long time is reduced, so that the service life of the battery monomer is prolonged, and the use reliability of the battery monomer is improved.

The purpose of this disclosure is to provide a semiconductor wafer that can suppress the shrinkage of the diameter of the convex shape portion by providing cutouts on the outer peripheral surface and the convex shape portion of the semiconductor wafer, and a method for manufacturing the semiconductor wafer. The semiconductor wafer involved in this disclosure has a first surface and a second surface opposite to the first surface. The first surface has a first main surface and a surrounding surface that surrounds the first main surface via a stepped surface and is recessed from the first main surface towards the second surface. A first cutout is provided in a circumferential portion of the stepped surface connecting the first main surface and the surrounding surface, and a second cutout is provided in a circumferential portion of the outer peripheral surface connecting the second surface and the surrounding surface. The first cutout is in the shape of a positioning edge, and the second cutout is in the shape of a notch.

The utility model provides a double-control faucet. The double-control faucet comprises a water outlet main body and a water outlet pipe fitting, the water outlet body is provided with a mounting cavity, a cold water channel and a hot water channel, and a mixed water channel is formed in one end of a mounting opening of the mounting cavity. And a mixing valve core is mounted in the mounting cavity. The water outlet pipe fitting is mounted at the mounting opening of the mounting cavity, and the water inlet end of the water outlet pipe fitting is coaxial and communicated with the mounting cavity. A temperature control assembly in linkage with the mixing valve element is arranged in the water inlet end of the water outlet pipe fitting, the temperature control assembly is provided with a temperature adjusting handle extending out of the periphery of the water outlet pipe fitting, and a flow control assembly is further arranged on the water outlet pipe fitting and located on the downstream of the temperature control assembly, so that a structure that the temperature control assembly and the flow control assembly are arranged in a staggered mode is formed. Therefore, the situation that the two switches are arranged together to cause large installation position size and congestion is avoided, the influence on the appearance modeling design of the faucet is reduced, and the appearance of the faucet has a larger design space.

The invention discloses a method for inversely sorting and assembling tree data, which relates to the field of software background development and comprises the following steps: S1, preparing; s2, a sorting step; s3, a cache establishment step; and S4, traversing and assembling. Compared with a traditional assembling mode of arranging from root nodes in sequence and recurring layer by layer, the method for assembling the tree structure data in the inverted sorting mode has the remarkable beneficial effects that the basic data are traversed in the inverted sorting mode, calculation is started from the last-stage node, the lower-stage nodes are set, and the efficiency is improved. According to the method, the complete tree structure can be assembled only through one-time circulation, the number of times and depth of recursion calling are greatly reduced, the time complexity problem (O (1)-O (n2)) caused by too deep recursion hierarchy and uncertain tree branch is avoided, and therefore the response time of a tree interface is remarkably shortened, and the overall running smoothness of software is improved.

The invention relates to the technical field of computer vision and coal mine intelligent mining, and discloses a lightweight working face three-dimensional reconstruction method and device fusing geometric prior constraints, and the method comprises the steps: firstly screening a dynamic effective region based on a projection relation and texture features, and removing static redundant scenes; performing sparse visual reasoning and depth regression only for the effective area to generate an initial depth map; carrying out physical structure correction on the depth map by utilizing geometric priori such as vertical upright posts and parallel top plates of the hydraulic support; and finally, constructing an optimization objective function containing deviation constraints of the vertical column perpendicularity and the top plate parallelism, and completing high-precision fusion of the incremental point cloud. According to the method, inference delay is reduced by reducing invalid calculation, structural distortion and registration drift caused by an underground severe environment are effectively inhibited by using a geometric law, and real-time and high-fidelity reconstruction of a working face scene is realized.

The U-shaped bumper trial-manufacturing machining method comprises the steps that a bumper is divided into a first part and a second part, the first part comprises upper side plates of two side plates of the bumper, and the second part comprises lower side plates and a bottom plate of the two side plates of the bumper; the depth of the U-shaped groove of the second part is set to be 150 to 300 mm; two matched first-generation wood blanks are arranged according to the first part, and a matched second-generation wood blank is arranged according to the second part; processing the second-generation wood blank into a B surface of a second part; the two first-generation wood blanks are fixed to the end faces of the two lower side plates of the second-generation wood blank correspondingly; the two first-generation wood blanks are machined to form the B face of the first part; and the A face of the bumper is machined. The method has the advantages that the B face of the bumper is machined in a split mode, all parts of the B face of the second part can be machined in place, the machining efficiency of trial-manufactured workpieces is improved, and the research, development and manufacturing cycle of a whole vehicle is shortened.

The invention discloses a rock-socketed gravity type fan foundation and an installation method thereof.The fan foundation comprises an upper bearing platform, the upper bearing platform can be selectively arranged to be a triangular box or a quadrilateral box according to the number of high pile legs, a fan tower barrel is installed at the center of the upper bearing platform through a foundation pre-flange, and the high pile legs are arranged at the end corners of the upper bearing platform; a lifting system is arranged on the upper portion of a deck of the upper bearing platform and located near the high pile leg, a pile shoe is arranged at the bottom of the high pile leg, and a rock-socketed pile leg is arranged in the high pile leg. The platform can be used as a rock-socketed operation platform and can also be used as a fan foundation, so that the offshore operation time is greatly shortened; meanwhile, the upper bearing platform cabin is fully utilized for upper ballasting, the mud entering depth of the socketed pile is reduced, and the rock socketed workload is reduced; the pile shoes are arranged at the bottoms of the high pile legs, so that the compression bearing capacity of the platform can be effectively improved; the cone is arranged at the bottom of the rock-socketed pile leg, so that soil breaking and stone breaking can be carried out, drilling operation is facilitated, and rock-socketed efficiency is improved.

The furniture board straightener and the furniture board with the same comprise a straightener body used for being installed in a furniture board body installation groove and a shielding plate, the shielding plate extends out of an opening of the installation groove from the front side to shield the straightener body, the straightener body is provided with an installation hole used for installing a straightening assembly, and the straightening assembly is arranged in the installation hole. The straightener body is provided with a mounting hole used for mounting the straightening assembly, and the vertical distance from the center of the mounting hole to the back face of the baffle plate is equal to or smaller than the distance from the center of the mounting hole to the position, closest to the front face, of the inner wall of the mounting hole. After the straightener is installed in the plate body, the back face of the shielding plate faces the plate body. According to the straightener provided by the utility model, the vertical distance from the center of the mounting hole to the back surface of the baffle plate is equal to or smaller than the distance from the center of the mounting hole to the position, closest to the front surface, of the inner wall of the mounting hole, and the vertical distance is shorter than that of a conventional straightener; therefore, compared with a conventional straightener, the depth of the straightener body sinking into the plate body is small, a deep installation groove does not need to be formed in the plate body, the straightener body can be contained only by forming a shallow installation groove in the plate body, and the straightener can be installed on the plate body with the shallow installation groove.

A double-door key cabinet with a rotating plate comprises a box body, a left door plate and a right door plate are arranged on the box body, the side faces of the door plates are connected with the box body through built-in hinges, the rotating plate is arranged between the door plates and a back plate of the box body in the box body, the side faces of the rotating plate are connected with side plates of the box body through hinges, and the rotating plate is limited by the door plates. The back face of the door plate, the front face and the back face of the rotating plate and the back plate of the box body are all connected with supporting strips, hook plates are connected between the supporting strips, and hooks are evenly distributed on the hook plates. The rotating plate in the box body is restricted by the door plate and moves synchronously with the door plate, so that the depth of the box body is shortened, and the size of the box body is reduced; hook points are arranged on the box body, the rotating plate and the door plate, so that the key storage number is increased; when the key cabinet is closed, the rotating plate is attracted and fixed through magnetic attraction, and stability of the rotating plate is guaranteed; folders are arranged in the key cabinet, so that key storing and taking conditions can be conveniently recorded.

The present application relates to a kind of ultra-high purity copper smelting casting method, the smelting casting method includes: the copper material is carried out vacuum smelting, when the vacuum degree becomes 280-310 times of the vacuum degree when vacuum smelting starts in process, vacuumizing is carried out, then in turn, heat preservation and casting are carried out;The casting speed is gradient change in the casting.This smelting casting method provided by the present application realizes the preparation of ultra-high purity copper ingot by the design of vacuum degree in vacuum smelting and the combination of specific casting process, the purity of the obtained ultra-high purity copper is ≥99.9999%, and there is no inclusion and no casting defects such as internal or surface hole.

The application discloses a new energy station electric quantity prediction method and system based on a global-local double-layer prediction architecture, and aims at solving problems of insufficient monthly electric quantity prediction data of new energy stations, large medium and long term weather prediction errors, and low prediction precision of traditional experience methods, adopts a global-local double-layer model architecture, a XGBoost global prediction model is constructed by using all station data in the upper layer, common rules such as seasons, weather, installed capacity, shutdown plan and the like are mined, the global model output is taken as an enhanced feature, a XGBoost local model is trained in combination with single station data in the lower layer, and individual characteristics such as station equipment efficiency and operation and maintenance level are adapted, and a holiday adjustment factor is introduced to post-process and correct the prediction result. The application effectively solves the small sample modeling problem commonly existing in monthly electric quantity prediction, and significantly improves the monthly electric quantity prediction accuracy of wind power stations and photovoltaic stations.

The utility model relates to a disc brake which comprises a caliper body and a support arranged below the caliper body, a stand column is arranged on the support, an avoiding groove used for avoiding the stand column is further formed in the inner wall of the caliper body, the avoiding groove is provided with a top face, a bottom face, a first side face and a second side face, and the first side face and the second side face are connected with the top face and the bottom face. The top surface and the bottom surface are both inclined planes, the first side surface is a vertical plane, the second side surface is an inclined plane, and the second side surface is a combined surface formed by a first arc-shaped section and a second arc-shaped section which are sequentially connected from top to bottom. Compared with the prior art, the utility model has the advantages that the receding groove is redesigned, and the receding groove adopts the mode of the inclined top surface, the inclined bottom surface, the vertical first side surface and the combined inclined second side surface formed by connecting the two arc-shaped sections, so that the receding groove can be more fit with the appearance of the upright post, and the depth of the receding groove can be reduced; relatively, the structural strength of the clamp body can be improved.

The invention belongs to the technical field of ferrous metallurgy, and particularly relates to a method for reducing the depth of a solidification hook of a low-carbon steel continuous casting billet, in the continuous casting process, the content of Al, Ti, N and total oxygen of molten steel entering a crystallizer is controlled, precipitation of a high-melting-point phase in casting powder is inhibited, and development and growth of a slag ring are inhibited; crystallizer casting powder with low alkalinity, low Na2O and Al2O3, low melting point and low crystallization temperature is adopted, cooling solidification and crystal precipitation of the casting powder near a meniscus are controlled, and developed growth of a slag ring is inhibited; the solidification hook depth of the low-carbon steel continuous casting billet is reduced, the surface scalping depth of the casting billet is reduced, and the surface quality and the yield of a low-carbon steel product are improved.

The utility model provides a pipe-jacking type comprehensive pipe rack top type outlet well trepanning device which comprises a jacking component, an outlet pipe, a through-wall waterproof sleeve, a conical pipe head and a drilling machine, the drilling machine is used for drilling and mud discharging of a soil layer between the outlet well and the top of a pipe rack, the outlet pipe is installed at the jacking end of the jacking component, and the through-wall waterproof sleeve is installed at the top of the pipe rack. The conical pipe head is installed on the wire outlet pipe, the wire outlet pipe is matched with the conical pipe head to be used for leveling the side wall of a soil layer, the through-wall waterproof sleeve is arranged on the side wall of the wire outlet well and the top of the pipe gallery and used for being connected with the wire outlet pipe, and the tapping device is used for locally opening a wire outlet through hole of an emergency well in a small range, so that the wire outlet connection requirements of different types of pipelines in the gallery at different positions are met. And a penetrating pipe is jacked between the pipe joint and the outlet well after the reinforced soil body is drilled. The excavation depth and range of the foundation pit of the outlet well can be reduced, and the influence on the surrounding environment is reduced.

The utility model belongs to the field of counterbalance forklift truck manufacturing, and particularly discloses a quick-release side plate welding structure of a counterbalance forklift truck, which comprises a front support, a rear support and a side plate welding part, the front support is mounted on a frame of the counterbalance forklift truck, the rear support is mounted on a rear column of the counterbalance forklift truck, the side plate welding part is hung on the front support and the rear support, and the side plate welding part is mounted on the rear column of the counterbalance forklift truck. And the lower part of the counterbalance forklift hood is pressed. The front fixing seat and the rear fixing seat of the side plate welding part are respectively provided with a clamping groove type structure with a large lower part and a small upper part, so that a three-point fixing type clamping groove structure design with a large lower part and a small upper part is realized, the side plate welding part is convenient to disassemble and assemble, the fixing structure is firm, a part of functions of a counterbalance forklift hood are replaced, the depth of the hood is reduced, and the service life of the hood is prolonged. The hood manufacturing process is simplified, the weight of the hood is reduced, the manufacturing cost of the whole machine is reduced, and the working efficiency of daily maintenance and repair of the counterbalance forklift is improved.