193 results about "Short distance" patented technology

A radar device which is installed in a vehicle or the like needs to detect a target at a short distance from several tens of centimeters to several tens of meters and, therefore, has a problem that a reflected wave from the target may be reflected by a front case of the radar device and then reflected by the target again to be received as a secondary echo by itself. To solve this problem, it is an object of the present invention to provide a radar device again that can prevent multi-reflection to accurately measure a distance to a target in a short range. In a radar device according to the present invention, a surface of a frame body provided around a transmitting antenna and a receiving antenna is shaped so that a reflected wave from a target may not be returned in a direction in which a transmitting wave is transmitted from the transmitting antenna.

The invention provides self-made small five-axis numerical control machine tool teaching equipment and an operation method thereof, and relates to the technical field of numerical control machining teaching equipment. A main shaft system and a clamp are arranged on the five-axis movement system; a transparent safety protection cover is arranged on the peripheral side of the five-axis movement system in a covering manner; a plurality of cameras are arranged on the five-axis movement system or the safety protection cover; the control system is respectively connected with the plurality of cameras, the main shaft system, the clamp and the five-axis movement system; according to the invention, an open modular structure is adopted, key moving parts and a processing process are completely exposed or visible through the transparent protective cover, so that a teacher can explain step by step and observe at a short distance with students; the machine tool body is made of light-weight materials such as aluminum alloy or engineering plastics, an open source numerical control system and standardized electromechanical components are combined, and on the premise that the basic teaching function is guaranteed, the manufacturing cost and maintenance complexity of equipment are greatly reduced.

To provide a game machine having features in presentation devices.SOLUTION: A first movable body and a second movable body are at least partially connected by a member. A shortest distance between a first part of the first movable body at a first position and a second part of the second movable body at a third position is equal to a shortest distance between the first part of the first movable body at a second position and a second part of the second movable body at a fourth position. The first movable body at the first position and the second movable body at the third position overlap display means with a first size, and the first movable body at the second position and the second movable body at the fourth position overlap the display means with a second size. The first size and the second size are the same size. When the first movable body is at the first position and when the first movable body is at the second position, the positional relations of the member with respect to the display means are the same. When the second movable body is at the third position and when the second movable body is at the fourth position, the positional relations of the member with respect to the display means are the same.SELECTED DRAWING: Figure 101

The invention relates to the technical field of grouting engineering, and provides a grouting device. The grouting device comprises an outer cylinder drilling tool, a multi-stage pushing assembly, a pose adjusting assembly and a grouting system. Wherein an operation cavity is formed in the outer cylinder drilling tool, and an operation hole is formed in the side wall of the outer cylinder drilling tool; the multi-stage pushing assembly is arranged in the operation cavity, a flow channel is formed in the multi-stage pushing assembly, and a differential pressure control valve is arranged in the multi-stage pushing assembly; the multi-stage pushing assembly is used for switching between an extension state and a contraction state, and in the extension state, the multi-stage pushing assembly extends out of the operation cavity; and in the contraction state, the multi-stage pushing assembly is located in the operation cavity. The pose adjusting assembly is connected with the multi-stage pushing assembly and used for adjusting the pose of the multi-stage pushing assembly. And the grouting system is communicated with the flow channel, so that grout reaches the external environment. The defects that in the prior art, large-angle corner hole forming cannot be achieved in a short distance and flexible grouting cannot be achieved in a limited space are overcome, and efficient, accurate and stable small-range multi-angle hole forming and grouting operation is achieved.

The invention provides a danger early warning method based on rapid calculation of the distance between a point and an area on a plane, a medium and equipment, and belongs to the technical field of cloud computing. The method comprises the following steps: firstly, outwards expanding a space with a specified threshold size for all areas; secondly, the minimum circumcircle is calculated for each expanded area, and the position of the circle center and the radius length are obtained; then, when the shortest distance between the target point and the multiple areas is calculated to be smaller than a threshold value or not, the distance between the target point and the circle center of all the minimum circumcircle can be compared firstly, and if the distance is larger than the radius of the minimum circumcircle, whether the target point is in the expanded area or not does not need to be calculated; and then, calculating whether the target point is in the expanded region or not to judge whether the distance between the target point and the region before expansion is smaller than a threshold value or not. According to the method, the complex calculation overhead is saved, and the calculation overhead can be further reduced by combining the information of the administrative region where the minimum circumcircle is located.

The application discloses a wire cutting machining method and device. The wire cutting machining method comprises the following steps: acquiring a current machining position of a workpiece to be machined, determining a geometric feature of the workpiece to be machined corresponding to the current machining position, wherein the geometric feature comprises a straight line feature and a circular arc feature; determining a target discharge gap corresponding to a cutting metal wire according to the geometric feature, wherein the target discharge gap is used to represent the shortest distance between the surface of the workpiece to be machined and the outer surface of the cutting metal wire; obtaining a current cutting offset of the cutting metal wire according to the target discharge gap and the cross-sectional radius of the cutting metal wire, wherein the current cutting offset is equal to the sum of the target discharge gap and the cross-sectional radius; and controlling the cutting metal wire to perform cutting machining according to the current cutting offset. The wire cutting machining method can significantly improve the machining precision and machining efficiency of small structural parts.

The utility model belongs to movable type support pier structure in the field of shipbuilding technology. The drive wheel (10) of first motor (9) of one side of support pier body (3) connects first track assembly (1), the drive wheel (10) of second motor (11) of the other side of support pier body (3) connects second track assembly (7), and the bottom of support pier body (1) is provided with lifting component (6), and the lifting rod (8) of bottom lifting component (6) is connected with the bottom of support pier body (3). The movable type support pier structure has simple structure, can satisfy reliable lifting support in the process of shipbuilding, can be automatically moved in short distance on site, saves manpower, saves time and is at ease, and improves shipbuilding efficiency.

The utility model discloses a movable seven-degree-of-freedom radar locating vehicle-mounted platform, which relates to the field of multi-degree-of-freedom motion simulation platforms and comprises a Mecanum wheel trolley, a seven-degree-of-freedom motion platform and a radar device. The seven-degree-of-freedom motion platform comprises a six-degree-of-freedom lower platform installed on the Mecanum wheel trolley, a control box installed on the six-degree-of-freedom lower platform, and a six-degree-of-freedom upper platform arranged on the side, away from the Mecanum wheel trolley, of the six-degree-of-freedom lower platform. And the freedom degree assembly is connected between the six-freedom-degree lower platform and the six-freedom-degree upper platform. The Mecanum wheel trolley and the seven-degree-of-freedom motion platform are arranged on the lower side of the radar device, all postures needed by the docking platform can be met to a certain degree, installation and debugging of related products are more convenient, meanwhile, short-distance movement can be achieved, the position suitable for radar docking can be found conveniently, and the radar docking efficiency is improved. The influence of the external environment on the radar is reduced as much as possible.

The invention discloses an automatic carrying platform for shaft levers. The automatic carrying platform comprises a platform body and two sliding rails with the same parameters, wherein the upper end face of the platform body inclines towards one end. The platform is made of a magnetic material or a layer of magnetic material is fixed on the surface of the platform; the slide rail main body is a stainless steel cuboid without magnetism, and a plurality of stepped holes with small upper parts and large lower parts are uniformly formed in the slide rail main body; a strong magnetic block is embedded and fixed in a large hole site below the stepped hole; the two sliding rails are fixed to the upper surface of the platform in a magnetic attraction mode and arranged in parallel, the shaft rod is arranged on the two sliding rails, and thin polished shaft parts at the two ends of the shaft rod make contact with the two sliding rails. The inclination angle of the upper end face of the platform ensures that the shaft rod can automatically and stably roll along the sliding rail. The shaft rod can stably roll on the shaft rod conveying device without deflection, installation is flexible and convenient, the shaft rod can be conveyed within the short distance smaller than or equal to 0.5 m, the shaft rod conveying device is suitable for conveying shaft rods with different lengths, and the application range is wide.

The utility model relates to the technical field of rail traffic construction, in particular to a noise reduction and damage prevention device for short-distance horizontal transportation of steel rails, which comprises a fixing component, universal wheels are respectively arranged at the positions of fulcrums on the periphery of the bottom of the fixing component, and the universal wheels are detachably connected with the fixing component. The steel rail is fixed to the fixing assembly through a fastener, and steel rail end baffles are arranged at the two ends of the fixing assembly. The utility model has the advantages that the convenience and the safety of horizontal transportation of the steel rail are improved, and the construction efficiency is improved; the device is simple and reasonable in structure, convenient to use, reusable and suitable for popularization.

The invention relates to a method and device for determining a construction area of a switching station, computer equipment and a medium, and the method comprises the steps: determining an initial area for arranging the switching station based on a factory building outgoing line point, a length threshold value and a height threshold value, and removing an area, coinciding with an arrangement forbidding area, in the initial area to obtain an arrangement allowing area; determining a plurality of target contour lines on the basis of a preset elevation step length by taking a point, which has the shortest distance from the permitted arrangement area, in the lowest contour lines of the permitted arrangement area as a starting point; determining a plurality of first target points in the lowest contour line and the target contour line based on a preset plane step length; each first target point is used as a positioning point of the candidate arrangement area, a preset length and a preset width are used as the length and the width of the candidate arrangement area, and a target area with the minimum construction cost is determined from the candidate arrangement areas meeting the preset arrangement condition. According to the method, the target area which is suitable for construction of the switching station and has the minimum construction cost can be rapidly determined.

1. The name of the design product: pallet truck. 2. The use of the design product: for short and medium distance transportation of pallet goods. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. The bottom of the design product is the part that is not easy to see or cannot be seen during use, and the top view is omitted.

The invention discloses an intelligent anti-collision protector based on a sensor network, relates to the technical field of intelligent anti-collision protectors, and provides the following scheme that the intelligent anti-collision protector comprises a right front plate, a left front plate, a back plate and a waist supporting plate. The right front plate and the left front plate are connected through the connecting plate and the connecting pin, the connecting plate is provided with multiple holes, the position can be adjusted, adaptability is improved, the connecting pin is matched with the rotating plate and the handle so that disassembly and assembly can be facilitated, connection is stable and looseness is prevented through combination of clamping blocks and the like, and the waist supporting plate is in a V shape and is provided with a silica gel pad so that the waist can be attached more comfortably; the position can be accurately adjusted, a back plate moving plate is provided with a limiting rod groove, a moving stabilizing plate, a connecting elastic band and other parts, the protector can be flexibly fixed, different girths can be adapted, convenience and comfort are improved, infrared sensors are distributed at multiple positions, the distance can be monitored, collision can be prevented, an alarm can be triggered in a short distance, a waist pressure sensor detects collision, and a single-chip microcomputer judges danger and gives an alarm. And intelligent early warning can be realized.

The invention discloses a multi-specification adaptive automatic positioning anti-clamping drill rod recovery cabin, and belongs to the technical field of drill rod recovery. The middle shaft rod is fixedly connected to the center in the fixed iron sheet shell; a plurality of groups of positioning holes are arranged, and the plurality of groups of positioning holes are equidistantly formed in the middle shaft rod; and a movable iron shell. According to the multi-specification adaptive automatic positioning anti-clamping drill rod recovery cabin, three actions of dismounting, transferring and storing are integrated on one drill rod positioning mechanism, a worker does not need to repeatedly run between a drilling machine and a stacking point, the position can be adjusted by rotating a drill rod clamping seat, a vacant site on the drill rod clamping seat is rapidly switched to a working position, and a next drill rod is waited to be placed in; operation is smooth, time is saved, the carrying distance is shortened, a worker only needs to unscrew a drill rod from a drilling machine, the drill rod can be placed in a drill rod clamping base in a recovery cabin beside the worker by horizontally moving the drill rod by a short distance, and the heavy drill rod does not need to be carried for a long distance.

The invention discloses a magnetic tape, magnetic tape unit equipment and a storage system, and relates to the technical field of magnetic tapes. The problem of tail time delay of magnetic tape unit equipment is solved. According to the specific scheme, belt bodies used for storing data are connected end to end, and in the process of accessing the data of the belt bodies, the belt bodies can move in two directions and can reach a target area where the accessed data are located in the two directions. The addressing length can be shortened by selecting the direction with the short distance to reach the target area. Wherein the maximum addressing length is 1 / 2 or less of the perimeter of the belt body. And the problem of tail time delay is improved. The addresses in the belt body do not need to be arranged in a snake shape, and the continuity of the addresses in the belt body can be guaranteed. For example, addresses may be arranged in the same direction.

A coil assembly is provided, including a main body including first and second side surfaces opposite to each other in a first direction and third and fourth side surfaces opposite to each other in a second direction, the main body including a magnetic material, a coil disposed in the main body, the coil forming at least one turn, and a lead frame connected to both ends of the coil in the main body, the lead frame being disposed on the first and second side surfaces of the main body. When a shortest distance between the coil and the third side surface of the main body is denoted by M and a length of the main body in the second direction is denoted by W, M / W satisfies greater than or equal to 0 and less than or equal to 0.1. y y ​​

The earthwork backfill tamping device comprises a tamping top plate, a mounting plate and an adjusting frame, the adjusting frame comprises two sets of scissor supports, and the upper ends and the lower ends of one sides of the two sets of scissor supports are hinged to the tamping top plate and the mounting plate through hinged supports respectively. The upper ends and the lower ends of the other sides of the two scissor supports are in sliding fit with the tamping top plate and the mounting plate correspondingly, a connecting shaft is arranged between the two scissor supports, the two ends of the connecting shaft are rotationally mounted in the middles of the scissor supports correspondingly, and a reset spring pipe is connected between the connecting shaft and the mounting plate. The tamping top plate is mounted below the mounting plate through the telescopic reset adjusting frame, height adjustment and adaptation of the tamping top plate are achieved through stretching and retracting of the adjusting frame, and movement adjustment of the tamping top plate in a short distance is assisted under large-distance movement of the mounting structure; and real-time adjustment of the tamping top plate is achieved through a special adjusting frame.

1. Name of the product in this design: Rear-tilting electric palletizing cart. 2. Application of this design: This design is used for the palletizing of boxed goods and short-distance transportation. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. The bottom view can be shown from the 3D diagram 2, so the bottom view is omitted.

1. Title of the design: Transitional Graphical User Interface. 2. Use of the design: This design is used in electronic devices. 3. Main feature of the design: Graphical user interface. 4. Interface use of the design: Two-way setting function of a short-range wireless technology earphone with a screen by changing user actions. Design 1 is the base design. Design 1 is a display interface for a short-range wireless technology headset with a screen, and Design 1 is a dynamic action display page, a time display page, a barrage display page, and a settings page. Figures 1.2, 1.4, 1.6, and 1.8 are for reference only, showing the use of the design sought to be registered, and do not constitute part of the design sought to be registered. 5. View best showing the design: Figure 1.1. 1.1) Front view; 1.2) Reference view; 1.3) Front view; 1.4) Reference view; 1.5) Front view; 1.6) Reference view; 1.7) Front view; 1.8) Reference view

The present invention addresses the problem of appropriately transmitting light. In a glass (10), when: the outer peripheral edge of the largest circle, centered on a center (P0) of the glass (10) and being contained within the range of an outer peripheral edge (10C) of the glass (10), is defined as a reference circumference (A0); a circumference, 5 mm away from the reference circumference (A0) inward in the radial direction, is defined as a first circumference (A1); the circumference of a circle, centered on the center (P0) of the glass (10) and having a radius that is half the distance between the reference circumference (A0) and the center (P0) of the glass (10), is defined as a second circumference (A2); a point on the first circumference (A1) is defined as a first point (P1); and a point having the shortest distance from the first point (P1) among the points on the second circumference (A2) is defined as a second point (P2), the maximum value of retardation is 20 nm or less in a straight line section (S) connecting from the first point (P1) to the second point (P2) in a straight line, the retardation does not monotonically decrease or monotonically increase from the first point (P1) toward the second point (P2), and there is a position where the retardation has an extreme value between the first point (P1) and the second point (P2).

The application discloses an armored equipment gun barrel bore cleaning device, which comprises a main control structure, a cleaning structure and an auxiliary assembly, and relates to the technical field of bore cleaning. The main control structure can drive the cleaning structure to move and independently clean and wipe the inside of the bore. The cleaning structure can also be driven to reciprocate for a long distance to wipe the bore. Meanwhile, the cleaning structure can be transformed to fit the diameter of the bore. The auxiliary assembly can be used to assist in fixing the cleaning structure outside the bore to support and limit the cleaning structure when the main control structure automatically cleans. The auxiliary assembly can also be used to manually drive the main control structure and the cleaning structure to move and clean in the bore with the help of a supporting rod. The main control structure can drive the cleaning structure to reciprocate for a short distance to wipe the bore. The device is simple to operate, and the towel used for wiping can be easily put in place. The device can realize two operation modes to quickly clean the inner wall of the bore. The inner wall of the bore can be dried at the same time.

The invention relates to a method for operating a particle beam apparatus for imaging, processing and / or analysing an object. For example, the particle beam apparatus is embodied as an electron beam apparatus and / or an ion beam apparatus. The invention furthermore relates to a computer program product and to a system comprising a particle beam apparatus for carrying out the method. The method comprises providing first structure data and second structure data; determining a target arrangement for a first device; providing at least one movement path; modelling the movement path of the first device within the particle beam apparatus; carrying out a check to determine whether the modelling of the movement path has the result that at least one first surface arrangement of the first device and at least one second surface arrangement of the at least one second device, when carrying out a movement process, (i) have at least one common point or (ii) are at a shortest distance but do not have a common point, wherein the shortest distance is smaller than a predefinable minimum distance; and, depending on the result of the check, displaying a message, discarding a movement process, changing a speed of the movement process, aborting the movement process, switching the movement process to a further movement process and / or carrying out the movement process of the first device using a movement device for moving the first device.

This utility model relates to the field of construction and discloses an adjustable connecting corner bracket construction tool, including a corner bracket first component, a corner bracket second component, and a connecting bolt assembly. The corner bracket second component has a U-shaped groove structure, and its main board has bolt adjustment holes. The corner bracket first component can be embedded into the U-shaped groove of the corner bracket second component, and its main board has corresponding bolt adjustment holes. The connecting bolt assembly includes a nut and a bolt, and the bolt passes through the bolt adjustment holes of the corner bracket first component and the corner bracket second component in sequence, and is fastened together by the nut and bolt. In this utility model, by changing the relative position of the bolt and the bolt adjustment hole, the corner bracket second component can achieve short-distance extension and retraction adjustment, while the corner bracket first component can both extend and retract short distances and rotate left and right. The combination of the two components changes the relative position relationship, allowing the installed stone to form a multi-faceted irregular shape effect, meeting the adjustment needs of irregular stone installation and improving construction flexibility.

The utility model relates to the technical field of biological safety cabinets, and discloses a biological safety cabinet for sample preserving fluid, which comprises a cabinet body, a ventilation component arranged at the top of the cabinet body, an opening arranged on the front side of the cabinet body, an operation component arranged inside the cabinet body, a limiting component arranged on one side of the bottom of the cabinet body, and a control component arranged on the other side of the cabinet body. A support is fixedly connected to the bottom of the cabinet body, a filter is fixedly installed in the cabinet body, the operation assembly comprises a damping column, the bottom of the damping column is fixedly connected to the interior of the cabinet body, a supporting plate is fixedly connected to the top of the damping column, a working platform is placed on the top of the supporting plate, and a first glass door is installed at an opening of the cabinet body. The bottom of the first glass door is rotationally connected with a second glass door, and the bottom of the second glass door is fixedly connected with a supporting rod. According to the utility model, by operating the assembly device, the fatigue of the arm is reduced, meanwhile, the visual operation at a short distance can be realized, and the detailed reaction of observing a sample can be clearer.

The utility model provides an unpowered clamping device. By means of the structure, the large-size single solid objects needing to be loaded and unloaded are simply protected and packaged, or the small-size single objects are stacked and packaged according to a certain shape, then the outer frame is arranged above the objects in a sleeved mode, then the objects can be lifted or moved in a short distance through any lifting equipment, and therefore the objects can be lifted or moved in a short distance through the lifting equipment. When the objects are carried, a bracket does not need to be installed at the bottoms of the objects, a packaging box with a carrying function does not need to be used for packaging the objects, meanwhile, the objects can be loaded, unloaded and stacked only by arranging simple lifting equipment without a clamping function at the loading and unloading site, and therefore the logistics transportation and logistics cost is reduced; the utility model belongs to the technical field of carrying equipment.

The invention relates to the technical field of stamping equipment, in particular to a shielding case high-speed precision stamping device which comprises a lower die base and a processing assembly, the upper portion of the lower die base is movably connected with an upper die base through a guide rod, a lower section die is arranged in the center of the lower die base, and a flattening processing assembly is arranged on the side, close to the lower section die, of the lower die base. The flattening processing assembly comprises a flattening control box, a pressing frame and two downward pressing frames, a flattening control groove is formed in one side of the lower die base, and when the metal strip for the shielding case is continuously blanked and machined, rapid clamping and short-distance dragging flattening of the metal strip are achieved through mechanical cooperation of the flattening processing assembly and the upper die base which move up and down. The problems that the stamping size deviation is large and stamping burrs are serious during continuous and rapid stamping machining are solved, in addition, under the cooperation effect of the processing assembly, surface cleaning can be carried out on the metal material strip subjected to stamping forming after stamping machining, and follow-up surface procedure operation is facilitated.

The invention relates to a detection device which comprises a shell and a cover body, the shell defines an inner cavity, one end of the shell is provided with an opening communicated with the inner cavity, and the cover body is connected with the shell and covers the opening; a first through hole is formed in one surface, far away from the cover body, of the shell, a main detector is arranged in the inner cavity, the main detector is fixed with the shell, a second through hole is formed in the main detector, the second through hole is aligned with the first through hole, and a light sensing surface of the main detector faces the cover body. The detection device provided by the invention can realize effective separation of the incident X-ray and the back scattering X-ray in a short distance, and can realize convenient optical path adjustment and accurate measurement of the back scattering X-ray.

The application discloses a machining table with multi-angle adjusting function for a machine tool and a use method thereof, and particularly relates to the technical field of machine tools. The machining table is characterized in that the cooperation between the pressure control structure, the first half-thread sleeve, the second half-thread sleeve, the second screw rod and the first screw rod can realize the operation of switching the first half-thread sleeve and the second half-thread sleeve for alternate use. When long-distance adjustment is needed, the second screw rod and the second half-thread sleeve can be cooperated to quickly adjust the machining table due to the sparse threads on the outer side of the second screw rod. The first screw rod can be used to complete short-distance precise adjustment due to the close threads. The use state of the first half-thread sleeve and the second half-thread sleeve can be switched to quickly and finely adjust the machining table, thereby effectively saving the adjustment time, and the machining table is simple and convenient to operate, and has good application value.

The invention relates to the technical field of electric power construction, in particular to multifunctional transportation equipment for electric power construction, comprising two connecting frames and wheels mounted on the two connecting frames; the device further comprises a connecting plate. The opposite sides of the two connecting frames are each fixedly connected with a connecting plate. The upper surface and the lower surface of each connecting plate are each provided with two limiting grooves. A U-shaped frame is rotationally connected to the two connecting plates; a plurality of sliding grooves distributed in a rectangular shape are formed in the upper surface of the U-shaped frame. A limiting strip is connected into the two sliding grooves in the same side in a damping and sliding mode. According to the multifunctional transportation equipment for power construction obtained through the design, when an operator lacks hoisting equipment, the U-shaped frame, the bearing support and parts connected with the U-shaped frame and the bearing support can be manually adjusted according to the actual situation, long-distance and short-distance transportation of telegraph poles is achieved, in this way, a large amount of manpower is saved, and the practicability of the multifunctional transportation equipment is improved.