132results about How to "Reduce installation errors" patented technology

The invention discloses a memory bank placement detection method and device based on an LED, and relates to the technical field of electronic digital data processing. According to the method, firstly, the installation state information of the to-be-detected memory bank is monitored and analyzed to obtain the installation state characterization value of the to-be-detected memory bank, so that the test deviation caused by improper installation can be reduced, and the accuracy of a memory bank test result is improved, and then the memory bank test accuracy is improved according to the installation state characterization value of the to-be-detected memory bank. The state of the LED lamp is obtained through matching in combination with the state of the additional pin of the memory slot, and installation prompting is carried out, so that possible errors of the installation state of the memory bank can be found before testing, the time of repeated testing caused by installation errors of the memory bank is saved, the accuracy of the test result of the memory bank can be improved, and the test efficiency is improved. Resource waste caused by unqualified memory bank test due to installation errors is reduced, and a large amount of repeated test time cost is saved.

The utility model relates to the technical field of USB (Universal Serial Bus), in particular to a single-row vertical connector convenient to position, which comprises a connector main body, an end head is fixedly connected to the upper surface of the connector main body, a middle spacer is fixedly connected to the lower surface of the end head, a contact body is fixedly connected to the lower surface of the middle spacer, and the contact body is fixedly connected to the upper surface of the connector main body. The connector comprises a connector main body, a contact body is arranged on the outer surface of the connector main body, a contact head is arranged on the front surface of the contact body, a welding tin pin is fixedly connected to the lower surface of the contact body, the outer surface of the connector main body is sleeved with a shell, and a rib material is fixedly connected to the lower surface of the shell. When the single-row vertical SMT is installed on the PCB, friction between the single-row vertical SMT and the PCB can be increased, the SMT is stably fixed on the PCB without welding, welding by workers is facilitated, meanwhile, the single-row vertical SMT can be conveniently detached from the PCB, and the stability of the single-row vertical SMT during installation is greatly improved.

The invention provides an adjustable transformer outgoing line structure in butt joint with an SF6 totally-enclosed composite apparatus, which comprises a flange, an ascending flanged base and a voltage-sharing ball, the ascending flanged base is installed on the top of an oil tank of the transformer. The flange is arranged on an oil-SF6 sleeve of the transformer in a sleeving mode and connected with one end of the ascending flanged base, and the voltage-sharing ball is installed in the oil-SF6 sleeve and connected with a lead of the transformer; the other end of the ascending flanged base is connected with an oil tank of the transformer. By adopting an adjustable wire outlet structure, fine adjustment can be carried out on site according to actual installation conditions, and accurate butt joint between the oil-SF6 sleeve and the SF6 totally-enclosed composite apparatus and the transformer is ensured.

The invention provides a modularized electric energy metering box, and relates to the technical field of electric energy metering boxes, the modularized electric energy metering box comprises a shell, an installation guide rail and an electric energy meter body, the side end part of the installation guide rail is fixedly provided with two connection ports for butt joint installation, and the side end part of the installation guide rail is fixedly provided with two fixing assemblies; the fixing assembly comprises trapezoid butt joint blocks, a flow guide cover and a sealing strip, the side end of each trapezoid butt joint block is slidably provided with a key cap used for insertion, the positioning clamp pulls the positioning rod to move together, the tail end of the positioning rod leaves the top end of the bearing plate, fixing of the bearing plate is relieved, and the bearing plate is pulled to fix the key caps. The supporting plate drives the inserting plate to move, the inserting plate is disconnected with the connecting port, meanwhile, the trapezoidal butt joint block slides out of the side end of the supporting plate, the supporting plate and the mounting guide rail are designed in a modularized mode, mounting personnel can conduct mounting operation rapidly and accurately, and mounting errors and time cost are reduced.

The utility model discloses a general section bar hole site auxiliary processing device, which comprises a base plate, a positioning pressure plate and a pressure plate, the base plate is provided with a plurality of positioning holes and a plurality of threaded holes, the plurality of positioning holes are linearly distributed, the plurality of threaded holes are also linearly distributed, the straight lines formed by the plurality of positioning holes and the plurality of threaded holes are parallel to each other, positioning pins are inserted in the positioning holes, and the pressure plate is arranged on the base plate. The positioning pressing plate is positioned through the positioning pin, a to-be-machined part is clamped on the bottom plate, the bolt penetrates through the through hole in the pressing plate to be matched with the threaded hole in the bottom plate, and the to-be-machined part and the positioning pressing plate are fixed on the bottom plate; the device has the advantages that positioning and locking are achieved, high precision is guaranteed, and parts are effectively prevented from deviating in the machining process; the efficiency is improved through one-time installation, hole site machining can be completed only through one-time installation, repeated clamping of parts is avoided, installation errors caused by repeated clamping are reduced, meanwhile, the tool has universality, hole site machining can be carried out on the same profile only by replacing the positioning pressing plate, and the tool machining cost can be saved.

This specification provides a data processing method, device and computing device based on a brain-like accelerator card. Before specific implementation, the brain-like accelerator card can be installed on the target computing device according to the preset installation rules; then, according to the preset construction rules, a program container image that matches the brain-like accelerator card and is compatible with the host machine's environment, software and hardware resources, permissions, etc. is prepared. During specific implementation, multiple associated algorithms related to the requested target data processing are first determined; then the image identifiers of the corresponding multiple target algorithm application container images are determined; based on the image identifiers of the multiple target algorithm application container images, a target computing device deployed with a brain-like accelerator card is constructed and called according to the target image parameter group, and target data processing is performed by running multiple target algorithm application container images. This can simplify the installation and use process of the brain-like accelerator card, and use the brain-like accelerator card to efficiently and accurately complete target data processing.

The utility model relates to a concave sound insulation groove floor heating module which comprises a base, a heat conduction layer is arranged on the upper side of the base, a sound insulation and heat preservation layer is arranged at the bottom of the heat conduction layer, grooves are formed in the heat conduction layer at intervals, floor heating pipes are arranged in the middles of the grooves, and inner grooves are symmetrically formed in the grooves. A stop block is movably arranged in the inner groove, and a stop spring is connected between the end, away from the floor heating pipe, of the stop block and the inner groove. The device has the advantages of efficient heat conduction, excellent sound insulation and heat preservation, convenient installation and maintenance, reliable anti-falling performance and the like, and the performance and reliability of a floor heating system are jointly improved.

The invention discloses an anchor bolt cage auxiliary mounting device of a fan foundation and a construction method thereof, the anchor bolt cage auxiliary mounting device comprises a plurality of supporting units, each supporting unit comprises a base, the base is provided with a first near end and a first far end, a lower positioning rod movably inserted in a bolt hole of a lower anchor plate is vertically arranged at the first near end, and a bearing platform is rotatably mounted at the first far end; the supporting column and the bearing platform are coaxially arranged, the height of the supporting column is adjustable, the supporting column is vertically arranged on the bearing platform, a top seat is rotatably installed on the supporting column and provided with a second near end and a second far end, and an upper positioning rod movably inserted into the screw hole of the upper anchor plate is vertically arranged at one end of the second near end; the jacking parts are installed at the first near end and the second near end in a liftable mode correspondingly, and the jacking parts are supported on the lower anchor plate or the upper anchor plate; and the linkage mechanism is used for synchronously driving the two jacking pieces to ascend and descend and is mounted on the base. The problems that when the anchor bolt cage of the fan foundation is installed, large hoisting equipment is adopted for auxiliary installation, the installation efficiency is low, and consumed time is long are solved.

This invention provides an operating device for welding the upper chord members of a hollow ball net frame. Installed on the diagonal web members of the net frame, it includes a support component, scaffolding boards, and a safety rope. The support component comprises multiple hook-type suspension members made of threaded steel, with both ends bent in the same direction to form a hook structure. The hook-type suspension members are initially placed on the chord members and slide along them under gravity and pressure, entering the intersection area between the chord member and the ball joint, where they are constrained by the geometry of this area, achieving stable support. The scaffolding boards are installed on the support component and include at least two parallel planks. One end of the safety rope is connected to the worker's safety belt, and the other end is fixed to a transverse chord member of the ball net frame. This invention is easy to install, structurally stable, and improves the safety and construction efficiency of high-altitude operations on ball net frames.

The utility model relates to gas -liquid heat and mass transfer equipment technical field especially relates to a corrugated sheet and novel filling, including the air inlet area, mixed air area, heat exchange area and air outlet area that set gradually along the air flow direction, mixed air area is located between the air inlet area and heat exchange area for the even distribution of the air volume that enters, the heat exchange area forms the continuous zigzag corrugation that penetrates the upper and lower ends of sheet, for guiding the spray water to flow from top to bottom, the passage of air outlet area is structured as the circular arc curve structure that arcs upwards along the air outlet direction. This scheme has the advantages of improving the air distribution uniformity, reducing the outlet floating water, avoiding the installation error and optimizing the gas -liquid contact efficiency.

The utility model discloses an adjustable support frame for mounting an irregular steel structure roof. The adjustable support frame comprises a bottom adjusting support frame, a hoop assembly, a rotating assembly and a steel structure roof fixing seat, wherein the bottom adjusting support frame is of a height-adjustable structure; the clamping hoop assembly is fixedly installed on the top of the bottom adjusting supporting frame. The bottom of the rotating assembly is connected with the clamp assembly in an angle-adjustable mode. The steel structure roof fixing base is fixedly installed on the top of the rotating assembly. Control points of the steel structure roof blocks are installed on the steel structure roof fixing bases. The bottom adjusting supporting frame of the adjustable supporting frame is of a height-adjustable structure, and the rotating assembly and the hoop assembly are of an angle-adjustable connecting structure, so that in the using process, the height of the supporting frame can be adjusted, the angle of a supporting point can also be adjusted, the construction efficiency is improved, and the construction cost is reduced. And moreover, the error of each control point is reduced conveniently, and the final forming quality of the cover is ensured.

The invention relates to the technical field of hoisting, and discloses a hoisting device for a prefabricated cover beam, comprising: a hoisting connection mechanism connected with a hoisting frame through a plurality of first hoisting ropes, the hoisting connection mechanism being provided with a plurality of second hoisting ropes for hoisting the prefabricated cover beam; the detection mechanism is arranged on the hoisting connection mechanism and is used for detecting the hoisting stability; and the control module is used for correspondingly adjusting the hoisting speed of the hoisting frame according to the detected hoisting stability result. The prefabricated cover beam and the hanging bracket can be connected through the hoisting connecting mechanism, the hoisting process of the prefabricated cover beam can be indirectly detected in real time by detecting the hoisting connecting mechanism through the detection mechanism, and the hoisting process can be controlled in time through the control module so as to make corresponding adjustment; the hoisting stability and the positioning accuracy of the prefabricated cover beam are improved, the installation error is reduced, and the installation precision is guaranteed.

This invention discloses a method, system, device, and medium for synchronous measurement of multi-conductor current based on a sensor array. The method includes: presetting a sensor array and performing a calibration mechanism on the sensor array; using the calibrated sensor array to perform a first positioning of a cable; constructing a data acquisition channel using the sensor array after the first positioning; performing phase calibration on the data acquisition channel until the phase difference between each data acquisition channel meets a preset requirement; acquiring magnetic field information data of multiple conductors through the phase-calibrated data acquisition channel; performing a first calculation on the magnetic field information data to obtain synchronous magnetic field data; and eliminating phase deviations between data acquisition channels by calibrating the sensor array, performing the first positioning, constructing the data acquisition channel, and performing phase calibration, thereby improving the measurement accuracy of the phase angle of the multi-conductor current, reducing installation errors, establishing and solving a multi-conductor magnetic field coupling model, and synchronously obtaining the current amplitude and phase information of each conductor.

The utility model relates to the technical field of building construction, and discloses a building engineering construction anchor rod construction device which comprises a working plate, the right side of the top end of the working plate is fixedly connected with a driving assembly, the interior of the working plate is fixedly connected with a first motor, and the driving end of the first motor is fixedly connected with a rotating column. A containing block is fixedly connected to the bottom end of the rotating column, an anchor rod is slidably connected to the interior of the bottom end of the containing block, two clamping holes are formed in the outer portion of the anchor rod, sliding rods are slidably connected to the inner walls of the left side and the right side of the containing block, and limiting plates are fixedly connected to the close sides of the two sliding rods. And clamping rods are fixedly connected to the sides, close to each other, of the two limiting plates. According to the utility model, the anchor rod is allowed to be quickly deployed and removed, the time required for mounting and dismounting is reduced, the labor intensity is reduced, and the conditions of mounting errors or infirm fixation of the anchor rod caused by manual operation errors are reduced, so that the project progress is accelerated.

The utility model discloses an optical system and a vehicle-mounted lens. The optical system sequentially comprises a first spherical lens with a positive focal length, a second spherical lens with a negative focal length, a third spherical lens with a positive focal length, a super lens with a positive focal length, a fourth spherical lens, a fifth spherical lens with a positive focal length, a sixth spherical lens with a negative focal length and a seventh spherical lens with a negative focal length from the object side to the image side along the optical axis. The surface, away from the object side, of the fourth spherical lens protrudes towards the object side. Wherein the fifth spherical lens is at least glued with the sixth spherical lens. According to the utility model, through the focal power distribution of the spherical lenses and the use of the bonding lens, the optical system has high resolution. Moreover, in any two adjacent lenses in the optical system, the lens diameter of the lens close to the object side is greater than or equal to the lens diameter of the lens close to the image side, so that the optical lens corresponding to the optical system provided by the invention can be installed from one side, and the installation yield can be improved.

The utility model provides a kind of shell assembly, including shell and pole post assembly. Shell has accommodating cavity, and shell is provided with through-hole;Pole post assembly is worn in through-hole, and pole post assembly includes compression ring, pole post and insulation sealing structure. Compression ring is located at the side of shell towards accommodating cavity;Pole post includes first cylinder, second cylinder and third cylinder, first cylinder is located at the side of shell towards accommodating cavity, and compression ring is arranged between first cylinder and shell, second cylinder is located at the side of shell away from accommodating cavity, and the outer circumferential dimension of first cylinder is less than the outer circumferential dimension of second cylinder;Third cylinder connects first cylinder and second cylinder, and third cylinder is worn in through-hole and compression ring;Insulation sealing structure is located between third cylinder and the hole wall of through-hole, and between compression ring and shell, and insulation sealing structure is interference fit with third cylinder, can improve the capacity of shell on the basis of not increasing the size of shell, to accommodate larger size battery cell, to improve the energy density of battery.

The invention discloses a line loss segmentation monitoring method and system for a power distribution master station and a fusion switch, and particularly relates to the technical field of power distribution network line loss, and the system comprises a line segmentation module, a segmentation interval data collection module, a segmentation interval line loss calculation module, a segmentation interval line loss correction module, and a segmentation interval abnormity processing module. Fusion switches are installed on a line according to a certain distance, measurement data of the fusion switches at the two ends of a line segment are collected through a main station, the basic line loss value and the line loss rate of the line segment are calculated, for a section containing a distributed power supply, the line loss influence coefficient and multi-scene compensation of the distributed power supply to the line segment are introduced, and the line loss value is calculated and corrected in real time. Based on the real-time corrected line loss value, in combination with the preset floating value, the threshold interval is constructed, the line loss abnormity of each line segment on the target to-be-monitored line is judged, the abnormal line segment is positioned, the line segmentation electric quantity metering is realized, the calculation precision under all working conditions is improved, the abnormity management is realized, and the operation and maintenance management complexity is reduced.

The present invention relates to the field of antenna measurement technology, and proposes a method for determining the phase center of the radio frequency front end of a phased array antenna. The method comprises: S1: installing a phased array antenna and adjusting the geometric center position of the array surface of the phased array antenna; S2: obtaining the phase center offset and phase pattern of the phased array antenna; S3: if the phase pattern is not a straight line, executing S4, and if the phase pattern is a straight line, executing S9; S4: comparing the phase pattern with each reference image in the image library to obtain multiple similarities; S5: selecting the reference image corresponding to the maximum value among the multiple similarities; S6: determining the moving direction of the turntable manipulator according to the selected reference image; S7: moving the turntable manipulator according to the moving direction and the phase center offset; S8: returning to S2; S9: outputting the phase center of the phased array antenna. The method can realize efficient and accurate determination of the phase center.

The utility model discloses a brushless direct current motor rotor subassembly, including rotor subassembly, convenient installation mechanism, fixed establishment and jointing auxiliary mechanism, the convenient installation mechanism includes linkage axle and installation platform, the fixed establishment includes the friction frame and the jointing rod, the jointing auxiliary mechanism includes the guide block and the two -way spring pole, and the convenient installation mechanism passes through the combination design of linkage axle and installation platform, has simplified the installation process of rotor subassembly, and the sliding fit of guide bush and linkage rod has provided accurate centering positioning function, and the fixed establishment adopts the innovative combination of friction frame and jointing rod, has realized the firm locking between parts, and the friction jointing groove of parallel setting in groups cooperates with the matched pair horizontal rod, has increased the friction point, has improved the connection stability, and the jointing auxiliary mechanism utilizes the precision fit of guide block and two -way spring pole, has realized the accurate positioning control of vertical pressure cover.

The embodiment of the present application relates to the technical field of bathroom, and discloses a sewage discharge pipe and a closestool device, which comprises a first connecting pipe, a second connecting pipe, a fixing member, and the second connecting pipe is sleeved with one end of the first connecting pipe, and the second connecting pipe can move along the axial direction relative to the first connecting pipe, the pipe diameter of the second connecting pipe is greater than the pipe diameter of the first connecting pipe, the fixing member is sleeved with the outer wall of the second connecting pipe, and the fixing member is used for locking or loosening the second connecting pipe, wherein when the second connecting pipe moves towards the direction close to the first connecting pipe, the overall length of the first connecting pipe and the second connecting pipe is shortened, and when the second connecting pipe moves away from the direction of the first connecting pipe, the overall length of the first connecting pipe and the second connecting pipe is elongated. Through the above mode, the length of the sewage discharge pipe can be adjusted.

The application relates to the field of heat pump unit manufacturing, and relates to a finned heat exchanger pre-assembly tool, which is characterized in that two groups of tool cars are arranged on a track assembly, each group of tool cars is connected with a bracket through a rotating shaft, two groups of fins to be machined are respectively arranged on the brackets of the two groups of tool cars, and the brackets are driven to rotate through an extension mechanism, so that the inclination angle adjustment of the two groups of fins can be realized, the problems of poor precision and high labor intensity caused by the heavy weight of the fins during traditional manual hoisting are solved, the limitation that a customized tool relies on a fixed angle and cannot be iterated twice is broken, the inclination angle requirements of different heat exchanger models can be met, the tool universality is remarkably improved, and the problem of exclusive tool abandonment caused by product iteration can be effectively avoided; the device ensures the angle adjustment of the two brackets through mechanical linkage, ensures that the included angles of the two fins are accurately matched with assembly requirements, and effectively improves the assembly precision and the assembly efficiency.

This utility model discloses a large-span terminal building metal grid roof with an adjustable steel frame assembly, including a support frame. The support frame is connected to a processing component, which includes: an array of guide rods, fixedly connected within the support frame for adjusting end guidance; and several receiving components installed on the guide rods for receiving the steel frame ends. Each receiving component includes a receiving frame slidably connected to the array of guide rods. This utility model relates to the technical field of metal grid roofing. This large-span terminal building metal grid roof with an adjustable steel frame assembly allows the support frame and guide rods to support several receiving components. The receiving frames, vernier calipers, second bolt and nut assembly, and scale plate work together to facilitate precise fixing of the receiving components to the appropriate position on the support frame, reducing installation errors caused by difficulty in determining the installation position of the steel frame end. The connecting strip engages with the receiving frame and is fixed to the receiving frame by the first bolt and nut assembly.

The honeycomb lamp comprises a lamp strip, first electric connecting bases and an adapter base, the lamp strip comprises a lamp shell, a lamp panel arranged in the lamp shell and the first electric connecting bases arranged at the two ends of the lamp shell, the two ends of the lamp panel are electrically connected with the first electric connecting bases, and each first electric connecting base comprises a power source positive electrode and a power source negative electrode; the adapter is provided with at least two first electric connection seats, the two first electric connection seats are connected in series, the adapter is provided with at least two second electric connection seats, the second electric connection seats of the same adapter are connected in series, the second electric connection seats are matched with the first electric connection seats, each second electric connection seat comprises a driving positive electrode and a driving negative electrode, and the inner side of the adapter is provided with a preset bending angle; the first electric connection seat and the second electric connection seat are electric connection grooves, a plug-in module is arranged between the first electric connection seat and the second electric connection seat, and two ends of the plug-in module are provided with male terminals matched with the electric connection grooves.

This utility model discloses an integrated six-dimensional portable force measuring plate, including an elastomer and a protective assembly disposed outside the elastomer. The assembly includes a hub, a force-bearing platform, and multiple strain beams. The force-bearing platform is located in the center of the hub, and the hub and force-bearing platform are connected by multiple strain beams. Multiple strain gauges are attached to different positions on the strain beams. A through hole is formed in the center of the force-bearing platform, and a bridge plate for forming a Wheatstone bridge and a data acquisition board for collecting and converting the output signals of the elastomer are disposed within the through hole. Multiple wires are led out from the strain gauges and soldered to the bridge plate to form six Wheatstone bridges, which are used to detect forces and moments in three directions, denoted as Fx, Fy, Fz, Mx, My, and Mz. Advantages: The integrated force measuring plate eliminates the need for multiple sensor splicing; multiple beams can work together to balance the force and compensate for each other, reducing the influence of off-center loading on the measurement results; multiple force measuring plates can be spliced ​​together for use.

The utility model relates to the field of hot runner manifold, especially to a mould blank hot runner manifold convenient to install. Including have lower manifold, upper manifold, injection pipe, hot runner, heating wire etc. ; A plurality of threaded holes are opened to lower manifold, a plurality of fixed holes are opened to upper manifold, fixed bolt passes through threaded hole and is connected with lower manifold threadedly, fixed bolt passes through fixed hole and is connected with upper manifold slidingly, fixed bolt passes through threaded hole and fixed hole and fixes lower manifold and upper manifold together, and folding rod is rotatably arranged at the top of fixed bolt. The utility model realizes the fixation of lower manifold and upper manifold through the cooperation of fixed bolt, threaded hole and fixed hole, and folding rod is rotatably arranged at the top of fixed bolt, the folding rod can be rotated and unfolded as a lever to assist the screwing of fixed bolt during installation, and the folding rod can also be unfolded and used to rotate fixed bolt reversely during disassembly, so that fixed bolt can be loosened quickly to separate upper and lower manifolds.

The utility model discloses a skirting line capable of being rapidly installed. The skirting line comprises an installation assembly and a buckling assembly. The installation assembly and the buckling assembly are connected in a matched and clamped mode. The mounting assembly is fixedly mounted on a wall body; the buckling assembly comprises a buckling plate, a first buckling part and a second buckling part, wherein the first buckling part and the second buckling part are assembled at the two ends of the buckling plate. The mounting assembly comprises a mounting plate, a supporting part and a mounting fixing part; the supporting part and the mounting fixing part are respectively fixed at the upper end and the lower end of the mounting plate; the upper surface of the mounting fixing part is vertically connected with a limiting part for clamping the first buckling part; a clamping part is arranged on the side, away from the wall body, of the mounting plate, and the supporting part and the clamping part form a clamping groove used for clamping the second buckling part; the device can be quickly, simply and conveniently mounted and dismounted, time and labor cost can be saved, the mounting plate and the fastening plate are simple in structure, and manufacturing cost and complexity are reduced.

The utility model relates to the technical field of nodular cast iron pipe installation, in particular to a self-anchored nodular cast iron pipe installation tool which comprises a movable frame, an installation assembly and a clamping assembly. The moving frame comprises a frame body, moving seats are arranged at the bottoms of the two sides of the frame body respectively, clamping assemblies are slidably arranged on the side portions of the frame body, each clamping assembly comprises a connecting plate, and the middle of each connecting plate is rotationally connected with the corresponding mounting assembly through a telescopic plate in telescopic connection; the mounting assembly comprises a plurality of supporting rods which are arranged at intervals in a telescopic mode in the circumferential direction, a mounting table is arranged at the ends of the supporting rods, connecting blocks are movably connected to the two sides of the mounting table, the two connecting blocks make contact with or are separated from the two sides of the sealing rubber ring correspondingly, and adjusting cylinders are further arranged at the ends of the supporting rods; the telescopic end of the adjusting cylinder penetrates through the mounting table and is rotationally connected with the pressing wheel; the device is suitable for adjusting and installing the sealing rubber rings in batches, the operation efficiency is effectively improved, and the labor cost is reduced.

The utility model discloses a numerical control machining center with high machining precision, which comprises a machine base, an integrated casting machine frame positioned on one side of the machine base and a machine head movably arranged on one side of the integrated casting machine frame, and a machine table mechanism capable of moving along a plane is arranged on the machine base. A receding groove extending in the vertical direction and a vertical guide rail extending in the vertical direction are arranged on the side, facing the machine head, of the integrated casting machine frame, the machine head is in sliding fit with the vertical guide rail, and a machine head driving mechanism used for driving the machine head to move is arranged in the receding groove. According to the machining center, the machine head used for machining the workpiece is installed through the integrated casting machine frame, the integrated casting machine frame is integrally cast, the installation and machining errors are reduced through the integrated design, the machining center is not prone to shaking in the working process, vibration is effectively resisted, the stability of the machine head in the workpiece machining process is effectively improved, and the machining accuracy of the machining center is improved. Therefore, the machining precision of the machine head is improved.

A kind of laser pointing device for PCCP pipe inner quick division, including ruler body, ruler body includes rectangular frame and back plate installed in the back of rectangular frame, and cover plate installed in the front of rectangular frame;The upper center position of rectangular frame is installed with pipe leveler;The center axis of laser pointing device is coaxial with the center line of pipe leveler, and laser pointing device is fixedly installed in the lower aspect plate center of rectangular frame;Power supply box is fixedly installed on the back plate at the right side panel of the inside of rectangular frame, and power supply switch that projects the right side panel of rectangular frame is arranged on the right side of power supply box, and laser pointing device is electrically connected with power supply box;The present application has the advantages of simple structure, convenient operation, can quickly place ruler body in the inner port of PCCP pipe, and adjust to horizontal state, open power switch, the laser beam emitted by laser emitter can quickly determine the center line of pipe, so that the precision of subsequent measurement is significantly improved, effectively reduces the pipe installation error, improves the pipe installation quality.

The utility model relates to the technical field of pump valves, and provides a peristaltic pump which comprises a pump shell, a driving mechanism, a pump head and a peristaltic pipe. An inner gear ring is arranged on the inner side of the pump shell; the driving mechanism comprises a driving motor, a driving gear and a connecting seat; the driving motor is arranged at one end of the pump shell, a power output shaft of the driving motor extends into the pump shell, one end of the driving gear is connected with the power output shaft of the driving motor, and the other end of the driving gear is connected with the connecting seat; the pump head comprises a roller and a transmission gear; the rolling wheel and the transmission gear are coaxially arranged on the connecting base, the axis of the rolling wheel is parallel to the axis of the driving gear, and the transmission gear is rotationally connected to the connecting base and meshed with the inner gear ring and the driving gear at the same time. And the peristaltic pipe is positioned between the pump shell and the roller and is extruded by the roller. Therefore, the working efficiency of the peristaltic pump can be improved.