36results about How to "Solve the problem of taking up too much space" patented technology

The invention discloses a block chain light client verification and query method based on a bitmap index. The method comprises a bitmap index and transaction verification information generation step,a query request step, a block scanning step, a query processing step, a data verification step and a query result calculation step. In the bitmap index and transaction verification information generation step, index structures and verification information are constructed for different transaction types. In the query request sending step, the light client sends a query request to the full node; Inthe block scanning step, all the blocks needing to be inquired are quickly scanned by all the nodes according to the bitmap index structure; In the data query step, the whole node obtains a query result set through query and returns the query result set to the light client; In the data verification step, the light client verifies the result set returned by the full node to obtain a correct query result set; And the step of calculating the query result is that the light client performs calculation based on the correct query result set to obtain a final query result.

The invention discloses a side wall double-sided over-constrained movable foldable house, and relates to the technical field of foldable houses. The foldable house comprises main supporting frames, shear fork mechanisms, ceiling supporting devices, floor supporting devices, side plate supporting devices and vertical supporting devices. After the device is folded, all components are folded into themain supporting frames, so that space waste is greatly reduced; and meanwhile due to the fact that the size is small after the device is folded, maneuvering transportation can be carried out along with a vehicle; the device is easy to control, and unfolding and folding of all plates can be completed without manual work; according to the device, the double-sided over-constrained shear fork mechanisms are arranged between stand columns at the two ends, so that the overall rigidity of a system is greatly improved; according to the device, by increasing the number of unfolding stages, an ultra-large unfolding space is obtained, and the problem that the unfolding ratio of an existing foldable house is too small is solved; and besides, replaceable sealing rubber strips are arranged at the joints of all components of the device so that complete sealing of the space after unfolding can be achieved, and the sealing problem of the existing foldable house is solved.

The invention relates to a road cleaning sweeper truck with a sewage recovery and reutilization function. The sweeper truck comprises a truck body and a clean water tank, wherein the clean water tank and a sewage tank are separated by a retaining plate, and are respectively and fixedly arranged on a chassis, a suction pipe penetrates through the chassis and extends into the sewage tank, the bottom of the suction pipe is connected with a suction nozzle for cleaning, a polymer sintering membrane filter is arranged at the top end in the sewage tank, a sewage pump is arranged in the sewage tank, and is connected with the polymer sintering membrane filter through a pipeline, a filtering water outlet pipe extends to an opening at the top of the clean water tank along the outer edge of the sewage tank by passing through the polymer sintering membrane filter, a backwashing pipe is connected with the polymer sintering membrane filter, and the opening of the backwashing pipe is provided with a backwashing valve. The sweeper truck has the advantages that the space structure of the sewage tank of the sweeper truck is sufficiently utilized by the horizontal type polymer sintering membrane, the problem of overlarge occupation space when the polymer sintering membrane filter is vertically arranged is solved, the filtering flow quantity of the polymer sintering membrane is approximate to the constant flow quantity in the specific application, and the filtering pressure in the sewage cavity is increased; the problems of overhigh initial flow quantity and difficult control over constant flow quantity are solved.

The invention relates to a construction site fence wall with storage and supporting structure functions, and belongs to the technical field of auxiliary structures of construction engineering. According to the main scheme, the construction site fence wall includes a plurality of fence wall units, each fence wall unit includes two sets of oppositely arranged main support columns and a wall body arranged between the two sets of main support columns, storage grooves formed in long-strip shapes are formed in the two opposite side walls of each wall body respectively in the vertical direction, andsupport structures for supporting the wall bodies in an inclined mode are arranged in the storage grooves; the support structures include telescopic rods used for supporting the wall bodies, limitingassemblies which are arranged on the telescopic rods and used for adjusting the lengths of the telescopic rods, and limiting strips used for limiting one ends of the telescopic rods, wherein one endsof the telescopic rods are hinged to the storage grooves, and one ends of the limiting strips are hinged to the storage grooves; and when the support structures are stored in the storage grooves, thelimiting strips are arranged on the outer sides of the telescopic rods in a covering mode, and the wall bodies are provided with inserting-connection assemblies used for limiting the limiting strips in the storage grooves. According to the construction site fence wall, the problem that an existing construction site fence wall takes up a lot of spaces when transported or stored after disassembly can be solved.

The invention discloses a copper bar insulation protection structure of an electric vehicle. The copper bar insulation protection structure comprises a protection sleeve and a protection cover, wherein the protection sleeve is made of an insulation material and is of a tubular structure which can be matched with the periphery of a copper bar, the protection cover is of an opening type cavity structure and can cover a connection end of the copper bar and an electrical part and a fastening element, the protection cover is connected to one end of the protection sleeve, and a connection part of the protection cover and the protection sleeve can be bent. During installation, the protection sleeve is arranged at the periphery of the copper bar in a matching way and then the fastening element is assembled; and during assembly of the fastening element, the protection cover is needed to be turned-over and move, the connection end of the copper bar and the electrical part is exposed, the fastening element is locked, and finally, the protection cover is buckled to cover the connection end of the copper bar and the electrical part and the periphery of the fastening element, so that the assembly of the whole insulation protection structure is achieved. In the insulation protection structure, the protection structure closely sleeves an end part of the copper bar, a gap between the protection structure and the copper bar is reduced, and the occupancy space is effectively saved. The invention also discloses the electric vehicle.

The invention provides a laser cutting machine. The laser cutting machine comprises a cutting table, wherein a back plate is welded to the top of the cutting table, the right side of the top of the back plate is connected with a driving shaft in a penetrating mode, a driven shaft penetrates through the left side of the top of the back plate, wheel discs sleeve the outer sides of the driving shaftand the driven shaft, a transmission belt is movably connected to the outer sides of the wheel discs, the top of the driving shaft is fixedly connected with a first motor through an output shaft, anda folding device is arranged in an inner cavity of a storage groove. According to the laser cutting machine, the cutting table, the storage groove, the driving shaft, the driven shaft, the transmission belt, the first motor, the folding device and a fixing device are used, so that the problem that the laser cutting equipment is inconvenient to place when a large object is placed is solved; and a groove, a rotating shaft, a second motor, a winding box, a stand column, a winding drum, a steel wire, and an adsorption device are cooperatively used, so that the problem that the cutting equipment isused for fixing the large object and consumes more manpower and material resources is solved.

The invention discloses a winding Chinese dragon type ore sand soring machine which comprises a sorting mechanism. The sorting mechanism comprises a primary sorting mechanism body and a secondary sorting mechanism body. The primary sorting mechanism body comprises a distribution filter net a, a collecting plate, a center flow channel and a distribution filter net b. The collecting plate is fixedlyconnected to the bottom of the distribution filter net a; a collecting cavity a is defined between the outer wall of the distribution filter net a and the outer wall of the collecting plate; filter holes a communicating with the collecting cavity a are formed in a conical surface of the distribution filter net a in an arrayed mode; the center flow channel is formed in the center of the bottom ofthe collecting plate and communicates with the collecting cavity a; filter holes b used for sorting of ore sand raw materials are formed in a conical surface of the distribution filter net b in an arrayed mode; and an opening in the upper end of the distribution filter net b can receive the ore sand raw materials flowing out of the conical surface of the distribution filter net a. The secondary sorting mechanism body can receive the ore sand raw materials flowing out of the open end of the bottom of the distribution filter net b and sort the ore sand raw materials. A guide mechanism used for guiding ore sand removed by the distribution filter net b through filtering to flow outwards is arranged between the primary sorting mechanism body and the secondary sorting mechanism body.

The invention discloses a connector of an assembling frame and the assembling frame formed by means of the connector. A body of the connector is provided with a first containing groove, a second containing groove and a third containing groove, wherein the first containing groove, the second containing groove and the third containing groove are perpendicular to one another. The three containing grooves are opened in the radial direction. The first containing groove of the body can contain a first framework, the second containing groove of the body can contain a second framework, and the third containing groove of the body can contain a third framework. The limitation in the assembling direction does not exist when the body and the frameworks are assembled, the frameworks can be conveniently assembled on the body or the body can be conveniently assembled on the frameworks in any direction facilitating assembling of constructers, the assembling time is effectively saved, and the advantage of fast assembling is achieved.

The invention discloses an installation-free W-shaped floor type clothes hanger. The installation-free W-shaped floor type clothes hanger comprises supporting frames, installation connectors, folding clamping blocks and cross rods; the number of the supporting frames is two; the installation connectors are installed at the tops of the supporting frames; the two ends of the cross rods are fixed between the two supporting frames through the installation connectors, and the installation connectors are foldable connectors; and the folding clamping blocks are arranged on the supporting frames, and multiple supporting rods are fixed through the folding clamping blocks so that the supporting frames can be folded. The folding clamping blocks are installed on the supporting frames, the whole supporting frame body can be folded, and transverse folding of the clothes hanger can be achieved when the clothes hanger is not used; and in addition, longitudinal folding of the clothes hanger can be achieved through the foldable installation connectors, the supporting frames and the cross rods are folded together, the storage space is greatly saved, and the problem that a clothes hanger used by small-sized families or rental people occupies too large space is effectively solved.

The invention discloses a box type anti-dizzy escape compartment device for a high-rise building. The box type anti-dizzy escape compartment device mainly comprises a compartment body, a chassis, a guide rail, a seat, a first steering unit used for steering of the compartment body, a battery pack, a controller, a gyroscope, a speed sensor, wheels, a brake unit and a second steering unit used for steering of the wheels. When a fire disaster occurs, the whole escape compartment can be erected on the guide rails, and an escaper sits in the compartment body and starts the escape button. The escape compartment can monitor the gliding speed and posture in real time in the gliding process, dizziness and discomfort in the escape process are avoided as much as possible, along with continuous gliding between the corridor platform and the stairway, the controller drives the seat through the first steering motor to adjust the steering angle in real time, and when the escape compartment reaches the next platform, the wheels are driven to steer through the second steering motor, so that the escape compartment is driven to escape. Therefore, the escape compartment can slide to the stairs from the platform and then slide to the next platform, and safe evacuation of escapers is achieved. The device has the advantages of being simple in structure, convenient to operate and easy to implement.

An electrical connector assembly (10) includes a first connector (12) having a guide hole (50) in a mating face (32) thereof. A second connector (14) includes a guide pin (22) for insertion into the guide hole of the first connector, the guide pin having a latch portion (46). A latch member (20) on the first connector (12) engages the latch portion (46) of the guide pin (22) of the second connector (14) when the connectors are mated to hold the connectors in mated condition. Therefore, the guide pin (22) performs a dual function of guiding the connectors (12,14) as well as latching the connectors.

The invention discloses polyurethane molding foaming equipment, and in particular relates to a polyurethane molding closing perfusion foaming mold base. The polyurethane molding closing perfusion foaming mold base comprises a first mold base split body and a second mold base split body, wherein the first mold base split body comprises a lower mold base, a mold locking mechanism and an upper mold, and a height space corresponding to a lower mold is formed between the lower mold base and the upper mold; the second mold base split body comprises a ground running trolley and the lower mold; both the first mold base split body and the second mold base split body are provided with a corresponding propped face and a matched butted point arranged on the propped face; the first mold base split body and the second mold base split body are provided with combined magnetic switches on the corresponding matched butted points; and the ground running trolley is provided with a buckle corresponding to the mold locking mechanism. For overcoming the technical defect that the conventional mold base occupies a large space, the invention provides a mobile split mold base structure of the upper and lower molds.

The invention discloses a detachable modular forestry temporary liquid storage device. The detachable modular forestry temporary liquid storage device comprises a bottom plate. The two sides of the upper end of the bottom plate are both rotatably connected with third supporting rods. The upper end of one third supporting rod is rotatably connected with a second supporting block. The second supporting block is provided with a first threaded through hole. A second screw rod penetrates through the first threaded through hole. One end of the second screw rod penetrates through a second threaded through hole and extends to one side of the second supporting block. The other end of the second screw rod is fixedly provided with a first screw rod. The first screw rod penetrates through a first supporting block. The detachable modular forestry temporary liquid storage device provided by the invention can be supported just through a rocking handle, the screw rods and the other simple structures for use in the using process, is retracted when not needed and is easy and convenient to use. The problem that an existing liquid storage device is too large in occupied area is solved. The detachablemodular forestry temporary liquid storage device can be stored better and is suitable for popularization.

The invention discloses a decoupling capacitor placement method applied to the system-in-package. Firstly, the interconnection mode is optimized, the space efficiency of the 3D system-in-package is further saved, and due to the fact that gold wire interconnection is reduced, the signal transmission quality is slightly improved. Then, the decoupling capacitor is placed in the residual space in thepackage, so that the problem that the space occupied by the decoupling capacitor is too large is solved, and the signal integrity is further improved. By optimizing the interconnection mode between different layers of system-in-package and the chip, a placement space is provided for the decoupling capacitor, and finally the power supply and signal integrity performance of the system is optimized.

The invention discloses a tower type ore sand sorting machine. The tower type ore sand sorting machine comprises a primary sorting mechanism, wherein the primary sorting mechanism comprises a materialsplitting filter screen a, a material collecting plate, a central flow channel and a material splitting filter screen b, wherein the material splitting filter screen a and the material collecting plate are cone-shaped; the material collecting plate is fixedly connected to the bottom of the material splitting filter screen a; a material collecting cavity a is formed by the enclosing of the outer wall of the material splitting filter screen a and the outer wall of the material collecting plate; filter openings a communicating with the material collecting cavity a are formed in the conical surface of the material splitting filter screen a in an array manner; the central flow channel is arranged at the bottom center of the material collecting plate and communicates with the material collecting cavity a; the material splitting filter screen b adopts a cone-shaped structure; filter openings b used for ore sand raw material sorting are formed in the conical surface of the material splittingfilter screen b in an array manner; the diameter of the filter openings a is smaller than that of the filter openings b; a gap used for allowing the ore sand raw material in the material splitting filter screen b to be guided out is formed between the lower end opening of the material splitting filter screen b and the outer wall of the central flow channel; and the upper end opening of the material splitting filter screen b can receive the ore sand raw material flowing out of the conical surface of the material splitting filter screen a.

The invention discloses a method and a system for greatly compressing the volume of a database, terminal equipment and a readable storage medium, and the method comprises the following steps: S1, traversing all trees, and extracting the names of all nodes and the values of leaf nodes; S2, counting the frequency of node names to obtain a word frequency table; S3, sorting the word frequency tables according to the word frequencies from high to low; S4, creating an optimal tree according to the word frequency tables arranged in the descending order; and S5, storing the word frequency table, the optimal tree and optimal tree paths of all nodes. According to the method, node name fields repeatedly appearing in original data are sorted, the optimal tree is established according to the sorted word frequency table, the original data is stored into the database by adopting the optimal tree structure, and the word frequency table is stored into the database, so that the size of the database is greatly reduced. Compared with the prior art, the method has the advantages that optimal coding is adopted, the node name fields are arranged in a descending order according to the frequency of occurrence, and the size of the whole database can be reduced to the maximum extent.

The invention discloses a transistor and a manufacturing method thereof. The manufacturing method for the transistor comprises the following steps: carbon nanotubes are formed on a substrate; a gate stack structure is formed on the carbon nanotubes; and electric contact is formed on the carbon nanotubes. The step of forming electric contact comprises sub steps: a conductive material grows on the surface of the carbon nanotubes by adopting an electroplating process, and in the electroplating process, the gate stack structure is used as a mask. According to the manufacturing method, the gate stack structure is used as the mask, the electroplating process is adopted to selectively grow the conductive material in a source-drain region on the surface of the carbon nanotubes from bottom to top to form electric contact, and meanwhile, the problems of holes generated when source-drain metal is deposited by deposition means such as sputtering and evaporation and the problem of side wall deposition of the source-drain metal in the prior art are solved.