546 results about "Vertical projection" patented technology

The embodiment of the invention discloses a display panel and a preparation method thereof and a display device.The display panel comprises a substrate, a first electrode, an auxiliary electrode, a pixel defining layer and an isolation structure, the first electrode is located on one side of the substrate, and the auxiliary electrode is at least in contact with the edge of the first electrode; the pixel defining layer is provided with a plurality of first openings exposing the auxiliary electrodes and / or the first electrodes. The isolation structure comprises a second opening, and the vertical projection of the first electrode on the substrate is located in the vertical projection of the second opening on the substrate. According to the scheme, the first electrode is contracted in the second opening defined by the isolation structure, the auxiliary electrode provides the electric signal for the first electrode, and the flatness of the pixel defining layer and the isolation structure can be improved.

The embodiment of the invention provides a camera module and electronic equipment, relates to the technical field of camera shooting, and is used for reducing the size of a camera. The circuit board of the camera module can comprise a first part and a second part. The first part is arranged on the side where the first surface of the image sensor is located and covers the non-photosensitive area. The first portion is electrically connected with the image sensor. In addition, the second part is arranged around the periphery of the first part. The vertical projection of the second part on the plane where the first surface is located is not overlapped with the image sensor. In the direction perpendicular to the first surface, the first part can be overlapped with the image sensor so as to reduce the length of the camera module. The first portion is located between the lens assembly and the image sensor such that the thickness of the first portion of the circuit board can be multiplexed with the total length of the lens.

The invention provides a ground satellite signal distributed cooperative processing method and system, and relates to the technical field of communication, and the method comprises the steps: extracting a user MAC address hash value, an emergency priority code and a spectrum occupancy matrix from a synchronous network, and generating a triple feature vector; transmitting the triple feature vectors through a double-layer Mesh network, selecting two reference target points with fixed geographic coordinates on the ground of the disaster area, obtaining three-dimensional coordinates of the reference target points, and constructing a space reference straight line; according to the real-time position data of each node, calculating a vertical projection distance from each node to the space reference straight line, and generating a node offset parameter; and dynamically generating a refraction correction coefficient of the signal propagation path based on a comparison result of the node offset parameter and a preset threshold value, and when the offset exceeds the threshold value, increasing a correction weight by adopting a piecewise linear interpolation method. According to the invention, high-reliability and low-delay emergency communication coverage can be realized.

The utility model provides a sunshine-imitating airing device. The sunshine-imitating airing device comprises a base plate; the outer side guide plate is connected with the lengthwise edge of the substrate, an air guide opening is formed in a first segment outside the vertical projection area of the substrate, and a light guide opening is formed in a second segment within the vertical projection area of the substrate; the inner side guide plate is connected with the lower portion of the base plate, and a gap is formed between the lower edge of the inner side guide plate and the edge of the second segment; the adapter plate is connected to the position where the second segment is overlapped with the inner side guide plate; the illumination assembly is connected with the adapter plate and directly faces the light guide port; and a fan. According to the sunshine-imitating airing device, the illumination assembly comprising the multi-wavelength lampwick is arranged, the lampwick having the positive effect on the airing effect can be arranged according to the sunlight components, the layout area of the illumination assembly is large, the illumination area is large, light rays are uniform, and the illumination effect is close to the natural condition.

The invention belongs to the technical field of marine environment monitoring and numerical simulation, and relates to a three-dimensional marine element field reconstruction method based on multivariable empirical orthogonal function decomposition. Comprising the steps of S1, multi-source data collaborative preprocessing; S2, MEOF joint modal extraction; S3, vertical projection operator optimization construction; S4, three-dimensional element field dynamic reconstruction; according to the method, through organic combination of multivariable modal decomposition and physical constraint projection, limitation of precision, efficiency and adaptability in three-dimensional field reconstruction in the prior art is broken through, key technical support is provided for real-time monitoring of the ocean dynamic environment, and the method can be widely applied to the fields of ocean disaster early warning, underwater engineering safety guarantee and the like.

The invention discloses a planet generation method and system based on spherical display equipment. The method comprises the following steps: acquiring a planet material to be projected; based on preset UV coordinate mapping data, performing spherical projection on the planet material to generate a planet with two poles based on vertical projection and an equator based on cylindrical projection; the acquisition mode of the UV coordinate mapping data specifically comprises the following steps: generating a corresponding cylindrical projection through a cylindrical projection algorithm based on the auxiliary texture; corresponding spherical coordinates are obtained based on auxiliary texture mapping; converting the obtained spherical coordinates into 3D rectangular coordinates; the obtained 3D rectangular coordinates are mapped back to the 2D texture space again, and corresponding vertical projections are generated; determining an equator mask; and generating corresponding UV coordinate mapping data based on the equatorial mask, the cylindrical projection and the vertical projection. According to the invention, through the design of the UV coordinate mapping data, in the process of carrying out spherical projection on the planet material, the resource consumption is reduced, and the dynamic projection precision can be improved at the same time.

The invention relates to the technical field of display, in particular to a display panel and a display device. The display panel comprises: a substrate; a first light-emitting element and a second light-emitting element; a first pixel opening and a second pixel opening; a first light-transmitting opening and a second light-transmitting opening; the maximum distance between the edge of the vertical projection pattern of the first light-transmitting opening on the substrate and the edge of the vertical projection pattern of the first pixel opening corresponding to the first light-transmitting opening on the substrate is L1; the maximum distance between the edge of the vertical projection pattern of the second light-transmitting opening on the substrate and the edge of the vertical projection pattern of the second pixel opening corresponding to the second light-transmitting opening on the substrate is L2, and L1 is smaller than L2; in the peep-proof mode, the first light-emitting element emits light, and the second light-emitting element does not emit light; in the sharing mode, the first light-emitting element does not emit light, and the second light-emitting element emits light. The method has a peep-proof mode and a sharing mode, and is beneficial to reducing the production cost.

The invention provides a display module and a display device, and relates to the technical field of display, the display module is opposite to a display panel of the display device, the display module comprises a first grating layer, the first grating layer comprises a plurality of first light blocking parts distributed side by side in the first direction, and a first opening is formed between every two adjacent first light blocking parts; the second grating layer comprises a plurality of second light blocking parts which are distributed side by side in the second direction, a second opening exists between every two adjacent second light blocking parts, and a first included angle formed between the vertical projection of the second light blocking parts to the first light blocking parts and the first light blocking parts is smaller than 90 degrees; the first grating layer further comprises at least one first light control part; the first light control part is positioned in the first opening; and / or the second grating layer further comprises at least one second light control part, and the second light control part is located in the second opening. Based on the scheme, the display device carrying the display module realizes a multi-visual-area display function, a naked-eye three-dimensional display function and a three-dimensional display function for a plurality of visual-area pictures.

The lamp pole polishing device comprises two placing tables which are hollow and arranged in parallel, the top faces of the two placing tables are sunken to form placing grooves, and the extension contours of the two placing grooves coincide and are in a horizontal state; a hollow part communicated to the interior of the placement table is arranged on the placement groove in a penetrating manner; an adjusting mechanism and a clamping mechanism are arranged in the containing table, the adjusting mechanism is movably arranged in the vertical direction, and the adjusting end of the adjusting mechanism is located in the projection range of the hollowed-out part in the vertical direction and used for rotating the lamp pole borne on the containing groove when the adjusting mechanism moves upwards by a preset distance in the vertical direction; the clamping part of the clamping mechanism is located in the projection range of the hollow part in the vertical direction; and a grinding mechanism is movably arranged on one side of the two placing tables in the extending contour direction of the placing grooves. The device can automatically polish the lamp pole, can rotate the lamp pole to adjust the polishing position, automatically clamps the lamp pole after adjustment, and is suitable for lamp poles of different sizes.

The invention discloses a Mongolian text line and word alignment corpus construction method based on text line recognition, and the method comprises the steps: carrying out the image segmentation of an image containing Mongolian text based on a vertical projection method, and obtaining an initial text line linear segmentation result; performing text line coarse alignment, and training a text line recognition network by using a text line corpus subjected to coarse alignment to obtain a recognized text character sequence; predicting word segmentation lines in the text lines, and according to the generated word segmentation lines, combining connected domain analysis to generate a word frame; and connecting the frames of the words in the same line to generate a minimum rectangular frame which completely surrounds the whole text line, so as to construct the line and word alignment corpus of the Mongolian text. According to the method, traditional image processing and a deep learning model are combined, the problems of under-segmentation and over-segmentation caused by printing defects of an early-stage lead printing newspaper image are solved, the accuracy of alignment of lines and words of Mongolian texts is remarkably improved, and meanwhile the manual correction cost is reduced.

The embodiment of the invention provides a display module and electronic equipment, relates to the technical field of intelligent wearing, and is used for solving the problem that the size of the electronic equipment is relatively large. In the display module, a supporting sheet is arranged on the back surface of a display screen, and the supporting sheet is connected with the display screen. The piezoelectric vibration piece is connected with the surface, away from the display screen, of the supporting piece. The vertical projection of the piezoelectric vibration piece on the back face of the display screen is located in the vertical projection range of the supporting piece on the back face of the display screen. And the piezoelectric vibrating reed drives the display screen to vibrate to realize screen sounding, so that the functions of sounding devices such as a loudspeaker, a buzzer and a sonar module can be realized. Sound production devices such as a loudspeaker, a buzzer and a sonar module do not need to be arranged in the electronic equipment, and the internal space of the electronic equipment can be saved.

The invention relates to the technical field of building three-dimensional modeling, and provides an ALS point cloud facade geometry-based LLO3-level-tending building three-dimensional model automatic reconstruction method, which comprises the steps of 1, building point cloud segmentation and bottom contour construction: segmenting a roof and facade area from an ALS point cloud, and constructing a bottom contour; automatically extracting the bottom contour of the actually grounded building through the vertical projection of the facade point cloud; step 2, door and window contour extraction based on facade geometry: projecting the facade point cloud into a two-dimensional image, identifying a door and window opening by using an Alpha Shape construction and geometry-semantic detection method, and extracting a door and window contour; and step 3, building a three-dimensional building model with enhanced facade details: inputting the bottom contour and the door and window contour into a modeling frame, and automatically embedding door and window components through polygonal surface patch combination and Boolean operation to generate a building model with a complete structure and semantic details. According to the method, the three-dimensional model of the building tending to the LOD3 level can be better and automatically reconstructed based on the ALS point cloud.

The invention provides a bar code recognition method and system based on segmented wave crests and adaptive threshold adjustment and a medium. The method comprises the steps of obtaining an original image, analyzing the original image based on a positioning algorithm to obtain bar code positioning information, and performing affine transformation based on the bar code positioning information to obtain an aligned bar code image; performing segmented vertical projection on the aligned barcode image to obtain waveform data of each segment, and performing smooth processing and differential processing on the waveform data of each segment to obtain differential waveform data; analyzing the differential waveform data based on a set threshold value to obtain wave crest and wave trough data, and analyzing the wave crest and wave trough data of each section to obtain a stroke code; decoding the run length code, and analyzing whether the decoding succeeds or not; if the decoding is successful, obtaining a barcode recognition result, and if the decoding is failed, adjusting a threshold value; by analyzing the segmented wave crests, the most probable position is extracted as the boundary position of the bar code, and the accuracy of bar code recognition in the industrial scene is improved.

The invention relates to the technical field of construction quality detection, in particular to a building construction quality automatic detection method and system.The building construction quality automatic detection method comprises the following steps that vertical projection plane coordinates of multiple components in a building fabricated structure are obtained, a horizontal edge vertex coordinate set is selected, and the geometric center of the components is obtained through calculation and averaging; and generating a component positioning center vector group according to the component number sequence connection points. According to the method, through extraction of vertical projection coordinates of the components, construction of a positioning center vector, establishment of sequence expression of the position relation between the components, judgment of the consistency of the offset difference change rate and the included angle, continuous offset trend extraction, extraction of the gravity center of the components in the section, calculation of the deviation degree of a connecting line to a theoretical axis, and reflection of the overall offset trend of the component section. And identifying the system characteristics of the error according to the offset consistency and the amplitude distribution. According to the process, the component position, direction and aggregation offset characteristics are integrated in a serialization, vectorization and gravity center weighting mode, and the capacity of trend recognition and cluster error judgment is improved.

The invention relates to the technical field of humanoid robots, discloses a humanoid robot and solves the problem that the leg distance is too large due to existing coaxial joint layout. In a standing posture, an output flange of the hip pitching joint is obliquely arranged downwards and is fixedly connected with a shell of the leg rolling joint through a rigid connecting piece; the rotating axis of the leg rolling joint is parallel to the advancing direction of the robot; the hip pitching joints and the leg rolling joints are arranged in a staggered manner on a vertical projection plane; on a horizontal projection plane, the projection area of the hip pitching joint at least partially covers the projection area of the leg rolling joint. The positions of the two leg rolling joints are changed, the two leg rolling joints are shifted towards the inner side and the lower side of the body, and the positions, located on the rotating axes of the hip pitching joints, of the rotating shafts of the original leg rolling joints are moved out and moved to the area between the rotating axes of the two hip pitching joints, so that the distance between the two thighs is reduced.

The present invention discloses a field-effect transistor device having a blocking region, for use in solving the problem of short-channel effects of field-effect transistors in the prior art. The field-effect transistor device includes an active layer, and the active layer includes a source region, a drain region, and a channel region located between the source region and the drain region. When the device is switched on, an effective channel and an equivalent source region and an equivalent drain region that are distant from the effective channel at least in the thickness direction of the channel region are formed in the channel region, and the field-effect transistor device supplies an working current by connecting the source region and the drain region by means of the effective channel, the equivalent source region, and the equivalent drain region; the field-effect transistor further includes a carrier blocking region, and in a plane perpendicular to the length direction of the effective channel, the vertical projections of the equivalent source region and the equivalent drain region are located in the vertical projection of the carrier blocking region.

The utility model discloses a workpiece gravity center detection device, which comprises a detection table, and a universal ball hinge support II is arranged below the detection table. The leveling adjusting frames are mounted on the bottom surface of the detection table in a central symmetry manner; oil rods of the oil cylinders are correspondingly installed on the three second universal ball hinge supports respectively, and the oil cylinders are communicated with one another through oil pipes; a universal ball hinge support I is arranged on the base, and the bottom of the oil cylinder is mounted on the universal ball hinge support I; and the laser is mounted at the center position of the bottom surface of the detection table and is used for vertically projecting a datum line. According to the workpiece gravity center detection device provided by the embodiment of the utility model, the gravity center of a processed workpiece can be rapidly detected through the synergistic effect of hydraulic self-balancing of the oil cylinder and counterweight fine adjustment of the lead screw.

The invention relates to the technical field of data processing, can be applied to business system platforms of financial science and technology, medical health and the like, and discloses a table generation method, device and equipment based on image data and a medium, the method comprises the following steps: obtaining an initial document image, and carrying out image enhancement processing on the initial document image to obtain a to-be-identified document image; performing visual table detection on the to-be-identified document image to obtain a target table area in the to-be-identified document image, and performing horizontal projection and vertical projection on the target table area to obtain a target table layout; extracting target table data of each table unit in the target table layout, and constructing a mapping relationship between the table units and the target table data; and generating a corresponding structured spreadsheet according to the target table layout, and filling the target table data into the structured spreadsheet according to the mapping relationship. According to the invention, the image table data identification accuracy can be improved.

The invention belongs to the technical field of high-throughput morphology determination, and discloses a fish high-throughput morphology determination method, which has the advantages of high detection speed and high accuracy: a deep neural network is used for analyzing an acquired image, compared with the traditional manual measurement, the detection speed is higher, the detection is more accurate, the detection speed reaches 1 second per fish, and the detection accuracy is higher. Compared with manual detection, the detection is improved by more than 10 times, and the accuracy is up to Compared with the prior art, testing steps and testing tools are reduced, the projection geometry principle is utilized, the fish body is placed under the image collector, the direction vector of the fish body is calculated in real time through a program, the accurate placing angle is automatically given, and the vertical collection image of the fish body can be obtained after operation is carried out according to program prompts. And processing the image through graying and Gaussian processing to obtain the vertical projection of the fish body. And the difficulty and error of the body curved surface test are reduced.

The utility model discloses a high and low temperature test box, which relates to the technical field of test boxes and comprises a test box, a box cover is arranged on one side of the test box, a movable plate is arranged on the inner side of the test box, and a motor rotating component is arranged at the bottom of the test box. A movable buckle is arranged at the top of the box cover; two pull rods are symmetrically arranged at two ends of one side, close to the test box, of the box cover; a rotating disc part is arranged on the upper surface of the movable plate; the rotating disc part comprises a placement disc; the bottom of the placement disc penetrates through the movable plate to be fixedly connected with a triangular clamping pin. And the vertical projection of the triangular bayonet lock is an isosceles triangle. By means of the structure, parts of different sizes and materials can be driven to rotate, better heating is facilitated, inaccurate test results caused by uneven heating are avoided, the movable plate can be pulled out, then the rotating disc part is pulled out, the parts can be taken out conveniently, and the test efficiency is improved.

A piezoelectric pump and an electronic device, relating to the technical field of heat dissipation. The piezoelectric pump (10) comprises a plate body (1101), a piezoelectric layer (1102) and a first housing (12), the plate body (1101) and the piezoelectric layer (1102) being stacked, the plate body (1101) being fixedly connected to the first housing (12), the first housing (12) having a first recessed cavity (121), and the plate body (1101) covering the first recessed cavity (121). In the stacking direction, the piezoelectric pump (10) has a connection hole (111) which passes through the plate body (1101) and the piezoelectric layer (1102), a first end (111a) of the connection hole (111) extending into the first recessed cavity (121). The first housing (12) is provided with a first through hole (122), one end of the first through hole (122) extending into the first recessed cavity (121). The vertical projection of the first through hole (122) in the stacking direction does not overlap with the vertical projection of the connection hole (111) in the stacking direction.

The present invention relates to a method for simulating and modeling the projection of the automatic fiber placement trajectory of a composite material. The method includes the following steps: obtaining the center point coordinates by averaging the coordinates of all nodes of the calculation unit; making a perpendicular projection point from the center point coordinates to the center lines of all tow trajectories of the currently selected ply, calculating the shortest distance from the center point to the center lines of all tow trajectories of the selected ply using the distance formula after obtaining the projection point coordinates, and selecting its tow trajectory by comparing all the above shortest distances; making a tangent to the selected tow trajectory such that the tangent passes through the projection point; calculating the dot product of the tangent vector and the ply coordinate system of the calculation unit to obtain the true ply angle of the single layer of the selected calculation unit, and replacing the theoretical ply angle of the single layer of the selected calculation unit with the true ply angle. The present invention obtains an accurate and true ply angle and can accurately simulate the structural performance of the actual automatic fiber placement.

The invention relates to a non-planar deformation detection sensor based on visual and tactile fusion. The sensor comprises a shell, and a curved surface contact module, a diffusion module and a sensing module which are distributed in the shell, the curved surface contact module is composed of a black gel sleeve and a semitransparent gel layer, the vertical projection of the semitransparent gel layer is rectangular, the two sides of the semitransparent gel layer are rectangular, and the middle of the semitransparent gel layer is in a strip-shaped circular arch shape; the appearance of the black gel sleeve is the same as that of the semitransparent gel layer, and the black gel sleeve covers the upper surface and the periphery of the semitransparent gel layer; the diffusion module is composed of a transparent gel layer and two sets of LED lamp sources. The method shows robustness in physical and functional aspects and adaptability to various computing platforms.

The invention discloses a double-sided transparent conductive film and a preparation method of the double-sided transparent conductive film, in the double-sided transparent conductive film, a first patterned adhesive layer is arranged on a first surface, a second patterned adhesive layer is arranged on a second surface, and the first surface and the second surface are oppositely arranged. A plurality of first grooves are formed in the first patterned adhesive layer, the plurality of first grooves are communicated, first conductive laminated structures are arranged in the first grooves, and the plurality of first conductive laminated structures are connected to form a first grid structure. A plurality of second grooves are formed in the second patterned adhesive layer, and the plurality of second conductive laminated structures are connected to form a second grid structure. The vertical projection of the first grid structure and the vertical projection of the second grid structure coincide in the thickness direction of the transparent substrate. Thus, the performance of the transparent conductive film can be improved by arranging the double-sided grid structures, the first grid structures and the second grid structures are accurately aligned, the metal duty ratio is greatly reduced, and therefore high light transmittance is achieved while high conductivity is guaranteed.

The invention discloses a ground-air-pipe multi-dimensional coupling PCCP pipeline health monitoring system and method, and belongs to the technical field of underground pipeline safety monitoring, and the system comprises an InSAR air monitoring unit, an artificial corner reflector array and a distributed optical fiber sensing unit. The PCCP pipeline is monitored from the air through the InSAR technology, and ground surface settlement rate abrupt change points and non-linear deformation areas are extracted through InSAR time sequence analysis; an adjustable artificial corner reflector is arranged along a vertical projection area of the pipeline, so that the phase incoherence problem of the InSAR technology in pipeline monitoring is improved, and the InSAR phase stability is enhanced; distributed optical fibers are pre-buried in the PCCP manufacturing stage and used for collecting pipe body strain data in real time, an abnormal space correlation map is constructed in combination with InSAR time sequence analysis data, and the hidden damage position and probability of an underground pipeline are deduced and inversely deduced through Bayesian causality. Omni-directional and multi-dimensional health monitoring from the ground and the air to the pipeline is achieved, the monitoring precision and reliability are effectively improved, and a powerful guarantee is provided for safe operation of the PCCP.

The invention provides a photoelectric sensing inertial sensor and a manufacturing method thereof, and the sensor comprises a semiconductor substrate which is internally provided with an annular cavity; a light conduction device is arranged in a circle defined by the annular cavity and is used for transmitting light to the inner side wall of the circumference of the annular cavity along the radius; the light source is used for emitting light rays vertically emitted to the circumferential plane of the annular cavity; a modulation device is arranged in a vertical projection area of the light source to the plane where the light conduction device is located and used for modulating a light source beam to the radius direction of the annular cavity; the light receiving devices are uniformly arranged on the circumferential side wall of the outer side of the annular cavity; and the inertial body is located in the annular cavity and can rotate around the annular cavity, and when the inertial body rotates to the position of a certain light receiving device, the inertial body can shield the light receiving device to receive light beams. According to the invention, the miniaturization of the sensing device is realized, the manufacturing cost is greatly reduced, the comprehensive damping is small, the test error is low, and the impact resistance is higher.

The utility model relates to a cylindrical ice-making module which comprises a cylindrical barrel, an ice-making disc body with a circular vertical projection is arranged in the barrel, the ice-making disc body and the barrel are concentrically arranged and can be mutually detached and separated, and the periphery of the outer side of the ice-making disc body is adjacently matched with the inner side wall of the barrel. The aligning action of the ice-making tray body when the ice-making tray body is placed in the barrel body is simplified, meanwhile, the heat exchange surface area between the outer side of the ice-making tray body and the inner wall of the barrel body is relatively increased, and the heat exchange efficiency between the ice-making tray body and the barrel body is improved, so that the ice-making efficiency is improved.

The application relates to a wireless table structure recognition method and device, equipment, a storage medium and a program product, and relates to the technical field of image recognition. At least one content contour is extracted from a target table image; noise removal processing is performed on each content contour to obtain at least one content region; clustering processing is performed based on the center points of each content region to determine a plurality of cell blocks; horizontal projection is performed on the plurality of cell blocks, and row coordinate information is determined according to the horizontal projection result; vertical projection is performed on the plurality of cell blocks, and column coordinate information is determined according to the vertical projection result; and the table structure is determined according to the row coordinate information and the column coordinate information. The method can reduce noise interference and improve the accuracy of wireless table structure recognition. The plurality of content regions in a cell are subjected to clustering processing, the table cell region can be accurately obtained, deep learning algorithms are not required, resource consumption is low, and the wireless table structure can be simply and effectively recognized.

A display panel, a preparation method thereof, and a display device. The display panel includes a substrate, a first electrode, an auxiliary electrode, a pixel defining layer, and an isolation structure. The first electrode is disposed on a side of the substrate. The auxiliary electrode is at least in contact with an edge of the first electrode. The pixel defining layer is provided with multiple first openings exposing the auxiliary electrode and / or the first electrode. The isolation structure includes a second opening. The vertical projection of the first electrode on the substrate is disposed within the vertical projection of the second opening on the substrate.

The utility model discloses a stone classifying and storing device which comprises a long straight transversely-arranged bottom rod, two through pipes transversely arranged at intervals are fixedly arranged at the upper end of the bottom rod, the through pipes are perpendicular to the bottom rod, the two through pipes are symmetrically arranged with the midpoint of the bottom rod as the symmetry center, a rectangular vertical retaining wall is further fixedly arranged at the upper end of the bottom rod, and the retaining wall is perpendicular to the bottom rod. The length direction of the retaining wall extends in the central axis direction of the bottom rod, the length of the retaining wall is not smaller than that of the bottom rod, the projection of the retaining wall in the vertical direction completely covers the projection of the bottom rod in the vertical direction, a through opening communicated with the through pipe is correspondingly formed in the bottom of the retaining wall, and two transverse supporting parts are fixedly arranged on the left side and the right side of the bottom rod respectively. The supporting parts are perpendicular to the bottom rod, the bottoms of the supporting parts are flush with the bottom of the bottom rod, the two supporting parts on the same side are symmetrically arranged with the midpoint of the bottom rod as the symmetry center, a gap is reserved between the two supporting parts on the same side to form a channel, and the through pipe is arranged in the range of the channel. According to the device, on the premise that the blocking function is guaranteed, the moving and adjusting functions can be conveniently and rapidly achieved.